CN216849269U - Light emitting device for display - Google Patents

Abstract

The utility model relates to a light emitting device for display, this light emitting device includes: the light sources are distributed on one or more strips, each strip is provided with a plurality of light sources, the light sources are electrically connected on a circuit in a matrix mode that the number of rows and the number of columns are both larger than 1, and each row and each column of the matrix are provided with control lines for receiving corresponding control signals; and a control unit configured to: the method includes acquiring a video signal to be supplied to a display for display from a signal source of the display, determining color and luminance information of each of a plurality of light sources from the video signal, each light source corresponding to a predetermined partial pixel region in an outermost periphery of a display region of the display, sequentially controlling, for each matrix, each row or column of light sources in the matrix to emit light according to the corresponding color and luminance information within one light emission period, to achieve an effect of individually controlling a large number of light sources with a small number of control lines.

Description

Light emitting device for display

Technical Field

The present application relates to a light emitting device and, more particularly, to an improved light emitting device for a display for use in conjunction with the display to provide an immersive lighting effect.

Background

Currently, light emitting devices have been developed for use in conjunction with displays, which comprise a ring of light sources arranged in a ribbon at the back periphery of the display. The control unit of the light-emitting device acquires an input video signal of a displayed image on the display and respectively instructs each light source in the circle of light sources to emit light corresponding to the video image at the position of the light source, so that the light-emitting range of the display is expanded, and the immersive viewing experience is provided.

However, the light emitting apparatus in the prior art needs to individually control each light source to emit light. Thus, when the number of light sources is large, a large number of light source control lines are required. For example, several hundred light sources need to be arranged for a 65 inch display, and correspondingly several hundred control lines. In particular, when the light sources are RGB light sources, three control lines are required for each light source to control R, G and B leds to emit light, respectively, which further multiplies the number of control lines required. But since the light sources are arranged in a circle of a strip at the back of the display, the width of the strip is limited, making it difficult to accommodate a large number of control lines.

Therefore, there is a need to reduce the number of control lines in a light emitting device while enabling individual control of a plurality of light sources (e.g., several hundred light sources).

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above problems, and it is a primary object of the present invention to provide a light emitting apparatus for a display to solve at least the technical problem of the prior art that it is difficult to individually control a large number of light sources in a stripe through a small number of control lines.

In order to achieve the above object, according to one aspect of the present application, there is provided a light emitting apparatus for a display, including: the light sources are distributed on one or more strips, each strip is provided with a plurality of light sources in the light sources, the light sources are electrically connected on a circuit in a matrix mode, the number of rows and columns of the matrix is larger than 1, and each row and each column of the matrix are provided with control lines for receiving corresponding control signals; and a control unit having output lines corresponding to one or more matrices associated with the one or more stripes, each output line being connected to a corresponding one of the row control lines or the column control lines in a corresponding one of the matrices, the control unit being configured to: acquiring a video signal from a signal source of a display, and providing the video signal to the display for displaying; determining color and brightness information of each of a plurality of light sources according to a video signal, wherein each light source corresponds to a predetermined partial pixel area in an outermost periphery of a display area of a display; and for each matrix of the one or more matrices, sequentially controlling each row or each column of light sources in the matrix to emit light according to the corresponding color and brightness information within one light emitting period.

In this way, for a number of light sources on each strip, independent control of each of the number of light sources can be achieved by arranging control lines only in each row and each column of the matrix to which the number of light sources are connected, thereby achieving independent control of each of the plurality of light sources with a reduced number of control lines.

Further, according to an embodiment of the present application, for each of the one or more matrices, sequentially controlling each row or each column of light sources in the matrix to emit light according to the corresponding color and brightness information within one light emitting period includes: and for each matrix in the one or more matrices, sequentially controlling each row or each column of light sources in the matrix to emit light according to corresponding color and brightness information in a preset light-emitting interval according to a clock signal in one light-emitting period.

In this way, for each strip-associated matrix, each row or column of light sources in the matrix can be sequentially controlled to emit light in time sequence by using the clock signal, so that independent control of each light source in the matrix within one light emitting period can be realized.

Further, according to an embodiment of the present application, sequentially controlling each row of light sources in the matrix to emit light according to corresponding color and brightness information within a preset light-emitting interval according to a clock signal includes: acquiring a current clock signal for a matrix with M number of rows and N number of columns in one or more matrices, determining an mth row light source corresponding to the current clock signal, M being a positive integer not greater than M, activating the mth row control line in response to determining the mth row light source, and controlling, for each of the mth row light sources, the column control line corresponding to the light source according to color and brightness information corresponding to the light source, such that the light source emits light according to the corresponding color and brightness information within a preset light emission interval; and/or sequentially controlling each column of light sources in the matrix to emit light according to corresponding color and brightness information in a preset light-emitting interval according to a clock signal comprises: acquiring a current clock signal for a matrix with M rows and N columns in one or more matrices, determining an nth column light source corresponding to the current clock signal, N being a positive integer not greater than N, activating an nth column control line in response to determining the nth column light source, and controlling, for each of the nth column light sources, a row control line corresponding to the light source according to color and brightness information corresponding to the light source such that the light source emits light according to the corresponding color and brightness information within a preset light emission interval.

In this way, through the control of the row control line and the column control line, it can be realized that only a certain row of light sources or a certain column of light sources in the matrix are controlled to emit light within a preset light-emitting interval according to the clock signal, so that all the light sources of the matrix are controlled to emit light independently in one light-emitting period.

Further, according to an embodiment of the application, for each light source of the plurality of light sources: the light source emits light when both the row control line and the column control line corresponding to the light source are activated, and does not emit light when any one of the row control line and the column control line corresponding to the light source is inactivated.

In this way, for the M-th row light source in the M × N matrix, its light emission when the M-th row control line is activated depends on the control signals on the corresponding N column control lines; and for the nth column light source in the matrix, its emission when the nth column control line is activated is dependent on the control signals on the corresponding M row control lines. Thereby, independent control of each light source can be achieved by the row control line and the column control line.

Further, according to an embodiment of the present application, each of the plurality of light sources includes a light emitting diodes connected in parallel to the same row control line or the same column control line, a being a positive integer.

In this way, each light source comprises at least one light emitting diode. Each light source may emit monochromatic light of varying brightness or color temperature, or colored light of varying brightness and color, by any number of arrangements of light emitting diodes.

Further, according to an embodiment of the application, when each light source comprises a light emitting diodes connected in parallel to the same row control line, for each column control line in each matrix: the column control line includes a sub-column control lines connected in parallel, and the output line corresponding to the column control line in the control unit includes a sub-column output lines such that each sub-column output line is connected to a corresponding one of the column control lines.

In this way, individual control of the individual light emitting diodes in each light source, and thus the illumination of each light source, may be achieved via the subcolumn control lines.

Further, according to an embodiment of the present application, for each of the m-th row light sources, controlling the column control line corresponding to the light source according to the color and luminance information corresponding to the light source such that the light source emits light according to the corresponding color and luminance information within the preset light emission interval includes: and for each of the m-th row light sources, controlling the a subcolumn control lines corresponding to the light sources according to the color and brightness information corresponding to the light sources, so that the light sources emit light according to the corresponding color and brightness information within a preset light-emitting interval.

In this manner, for each light source in the m-th row light source, when the m-th row control line is activated, the light source can be caused to emit light according to the corresponding color and luminance information within a preset light emission interval by controlling the a subcolumn control lines corresponding to the light source.

Further, according to an embodiment of the present application, controlling the a subcolumn control lines corresponding to the light sources according to color and luminance information corresponding to the light sources such that the light sources emit light according to the corresponding color and luminance information within a preset light emission interval includes: and determining which ones of a (N '-1) +1 to an' th subcolumn control lines corresponding to the light sources are activated according to color information corresponding to the light sources, and determining an activation period of the ones determined to be activated within a preset light emission interval according to luminance information corresponding to the light sources, wherein the activation period of the ones is longer within the preset light emission interval the brighter the luminance indicated by the luminance information corresponding to the light sources.

In this way, for each light source in the m-th row of light sources, the activation or deactivation of the a subcolumn control lines corresponding to that light source is determined by the color information, and the activation periods of some of the subcolumn control lines to be activated are determined by the luminance information, thereby achieving control of light emission of the light source in accordance with the color and luminance information corresponding to the light source.

Further, according to an embodiment of the application, for each light emitting diode in each light source of the plurality of light sources: the light emitting diodes emit light when both the row control line and the sub-column control line corresponding to the light emitting diodes are activated, and do not emit light when any one of the row control line and the sub-column control line corresponding to the light emitting diodes is not activated.

In this way, when controlling the N light sources of the mth row to emit light according to the corresponding color and luminance information, different light emission of the N light sources of the mth row can be achieved by activating the mth row control line and differently activating the aN subcolumn control lines according to the color and luminance information corresponding to the light emitting diodes of the N light sources.

Further, according to an embodiment of the present application, for each sub-column control line in each matrix: the sub-column control line is connected to a constant high level or a constant low level via a corresponding sub-column switch, a sub-column output line corresponding to the sub-column control line in the control unit is connected to a control electrode of the sub-column switch, and the sub-column control line is activated when the corresponding sub-column switch is closed.

In this way, the control of the subcolumn switches by the control unit enables the activation or deactivation of the subcolumn control lines.

Further, according to one embodiment of the present application, for each row control line in each matrix: when each sub-column control line is connected to a constant high level via the corresponding sub-column switch, the row control line is connected to a constant low level via the corresponding row switch; the row control line is connected to a constant high level via a corresponding row switch when each sub-column control line is connected to a constant low level via a corresponding sub-column switch, and wherein a row output line in the control unit corresponding to the row control line is connected to a control pole of the row switch, the row control line being activated when the corresponding row switch is closed.

In this way, the activation or deactivation of the row control lines can be achieved by the control of the row switches by the control unit. When the row control line and the sub-column control line are respectively communicated with the constant high level and the constant low level, the corresponding light emitting diode can emit light.

Further, according to an embodiment of the application, when each light source comprises a light emitting diodes connected in parallel to the same column control line, for each row control line in each matrix: the row control line includes a sub-row control lines connected in parallel, and the output line corresponding to the row control line in the control unit includes a sub-row output lines such that each sub-row output line is connected to a corresponding one of the row control lines.

In this way, individual control of the individual light emitting diodes in each light source, and thus the illumination of each light source, may be achieved by the sub-row control lines.

Further, according to an embodiment of the present application, for each of the n-th column light sources, controlling the row control line corresponding to the light source according to the color and luminance information corresponding to the light source such that the light source emits light according to the corresponding color and luminance information within a preset light emission interval includes: and determining which ones of a (M '-1) +1 to am' th sub-row control lines corresponding to the light sources are activated according to color information corresponding to the light sources, and determining an activation period of some of the sub-row control lines determined to be activated within a preset light emission interval according to luminance information corresponding to the light sources, wherein the activation period of some of the sub-row control lines within the preset light emission interval is longer the brighter the luminance indicated by the luminance information corresponding to the light sources.

In this way, for each light source in the nth column of light sources, it is possible to determine activation or deactivation of a sub-row control lines corresponding to the light source through color information and determine activation periods of some sub-row control lines to be activated through luminance information, thereby achieving control of light emission of the light source according to color and luminance information corresponding to the light source.

Further, according to an embodiment of the present application, each of the a light emitting diodes comprises a plurality of identical sub light emitting diodes.

In this way, the number of light emitting diodes in the light source can be expanded, thereby allowing the light source to emit light of higher brightness.

Further, according to an embodiment of the present application, each of the plurality of light sources includes a red light emitting diode, a green light emitting diode, and a blue light emitting diode.

In this way, the light source in the light emitting apparatus for display desired by the present application can be realized by RGB LEDs.

Further, according to one embodiment of the present application, each of the one or more stripes is arranged along a portion of an outer edge of the back portion of the display such that each of the plurality of light sources corresponds to a portion of the pixel area corresponding to an arrangement position of the light source in an outermost periphery of the display area of the display.

In this way, by sequentially arranging one or more stripes along the outer edge of the back of the display so that the entirety of the light sources on the stripe corresponds to the outermost peripheral region of the display area of the display, and each light source corresponds to a partial pixel area corresponding to the light source position in the outermost peripheral region. Thus, by making the light emission of the individual light sources vary with the variation of the color and brightness of the outermost peripheral region of the display, the viewer is given a more immersive viewing experience.

Further, according to an embodiment of the present application, determining color and brightness information for each of a plurality of light sources from a video signal includes: for each light source, color and luminance information of each pixel in a partial pixel region corresponding to an arrangement position of the light source is acquired from a video signal, an RGB gamut median color, an HSV gamut median color, an RGB gamut average color, or an HSV gamut average color of all pixels in the partial pixel region is taken as the color information of the light source, and a highest luminance, a lowest luminance, a median luminance, or an average luminance of all pixels in the partial pixel region is taken as the luminance information of the light source.

In this way, a determination of the color and brightness of each of the plurality of light sources may be achieved.

In an embodiment of the present application, there is provided a light emitting apparatus for a display, the light emitting apparatus including: a plurality of light sources distributed over one or more strips, each strip having a number of the plurality of light sources arranged thereon, the number of light sources being electrically connected in a matrix on the circuit, the number of rows and columns of the matrix each being greater than 1, and each row and each column of the matrix having control lines arranged to receive a corresponding control signal; and a control unit having output lines corresponding to one or more matrices associated with the one or more stripes, each output line being connected to a corresponding one of the row control lines or the column control lines in a corresponding one of the matrices, the control unit being configured to: acquiring a video signal from a signal source of a display, and providing the video signal to the display for displaying; determining color and brightness information of each of a plurality of light sources according to a video signal, wherein each light source corresponds to a predetermined partial pixel area in an outermost periphery of a display area of a display; and for each matrix in one or more matrices, sequentially controlling each row or each column of light sources in the matrix to emit light according to corresponding color and brightness information in one light emitting period, so as to solve at least the problem that it is difficult to individually control a huge number of light sources in a strip through a small number of control lines in the prior art, thereby achieving the effects of effectively reducing the number of control lines and enabling a larger number of light sources to be controlled in a strip with a limited width.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:

fig. 1 shows a signal transmission diagram of a light emitting device for a display and the display according to an embodiment of the present application;

fig. 2 is a schematic view showing a positional arrangement of light sources of a light emitting apparatus for a display according to an exemplary embodiment of the present application on the display;

fig. 3 shows an exemplary circuit connection schematic diagram of a light source and a control unit of a light emitting apparatus for a display according to an embodiment of the present application;

fig. 4 is a schematic view showing a positional arrangement of light sources of a light emitting apparatus for a display on the display according to an exemplary embodiment of the present application;

fig. 5 shows an exemplary circuit connection schematic corresponding to the light source shown in fig. 4.

Wherein the figures include the following reference numerals:

100: light emitting device for display

110(110₀～110_x): strip tape

101(101₁～101_M×N): light source

120: control unit

200: display device

201(201₁～201_M×N): partial pixel region

VSOURCE: signal source

VSIGNAL: video signal

CSIGNAL: control signal

T: period of light emission

VCC: constant high level

Detailed Description

In order to avoid conflict, the embodiments and features of the embodiments of the present application may be combined with each other. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In this application, where the contrary is not intended, directional words such as "upper, lower, top and bottom" are generally used with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, vertical or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the application.

Fig. 1 shows a signal transmission diagram of a light emitting device for a display and the display according to an embodiment of the present application. As shown in fig. 1, a light emitting apparatus 100 for a display according to an embodiment of the present application includes a plurality of light sources distributed on one or more stripes 110 (only two stripes are shown in fig. 1 as an example) and a control unit 120. The video signal source VSOURCE of the display 200 transmits a video signal VSIGNAL to the display 200 for display on the display area of the display 200 and also transmits the video signal VSIGNAL to the control unit 120. The control unit 120 converts the received video signal VSIGNAL into a control signal CSIGNAL for controlling each of the plurality of light sources and transmits the control signal CSIGNAL to each corresponding light source via each of the stripes 110.

In this application, the video signal source VSOURCE is, for example, a video signal output side of a video camera, a DVD-ROM, a game machine, a set-top box (when the display is a television set), or the like. The display 200 is a display device such as a television, a computer monitor, a flat panel display, or the like. The video signal source VSOURCE may transmit the video signal VSIGNAL to the display 200 via an HDMI interface and to the control unit 120 via another HDMI interface.

Fig. 2 is a schematic diagram illustrating a positional arrangement of light sources of a light emitting apparatus for a display on the display according to an exemplary embodiment of the present application. As shown in FIG. 2 (a), the light emitting device 100 for a display includes a stripe 110₀M × N light sources 101 arranged in a single row₁～101_M×N(when distinction is not required, each light source 101 will be described below₁～101_M×NSimply referred to as light source 101). Strap 110₀May be disposed along an outer edge of the display at the back of the display 200 such that each light source corresponds to a predetermined partial pixel area in the outermost periphery of the display area of the display 200. Specifically, each light source corresponds to a partial pixel region corresponding to the arrangement position of the light source in the outermost periphery of the display region of the display 200.

It should be noted that the M N light sources are in the strip 110₀The single row arrangement above is only a preferred example, as a single row arrangement is more suitable for accommodating the light sources in a single strip. However, these light sources are in the strip 110₀May be arranged in a plurality of rows as long as the strip 110₀It is sufficient to be able to accommodate the M × N light sources. For example, the M N light sources are in the strip 110₀The upper may also be arranged uniformly in two rows, or three rows.

As shown in FIG. 2 (a), a light source 101₁Corresponding to a part of the pixel region 201₁ Light source 101₂Corresponding to a part of the pixel region 201₂…, and so on, light source 101_M×NCorresponding to a part of the pixel region 201_M×N(when no distinction is required, each partial pixel region 201 will be described below₁～201_M×NAbbreviated 201).

In this way, the light source 101₁～101_M×NCorresponds to the outermost peripheral region of the display 200. Therefore, by causing each light source 101 to emit the color and luminance of the partial pixel region 201 corresponding thereto, the light emission of the light source can be made to vary with the variation in color and luminance of the outermost peripheral region of the display 200. This effect appears to expand the boundaries of the display area of the display 200, thereby enabling the viewer to obtain a more enhanced viewAn immersive viewing experience.

Fig. 2 (b) shows a case where the light sources 101 of the light emitting apparatus 100 for a display are distributed over a plurality of stripes. As shown in FIG. 2 (b), the light emitting device 100 for a display includes a plurality of stripes 110₁～110_x(when no differentiation is required, the strip 110 will be described below₀～110_xEach of which is simply referred to as a strip 110) of a plurality of light sources 101 arranged in a single row. Specifically, in the band 110₁Thereon is arranged with a light source 101₁～101_m1×n1At the strip 110₂Thereon is arranged with a light source 101_1’～101_m1’×n1’And so on, in the band 110_xThereon is arranged with a light source 101_1”～101_m1”×n1”. When the number of the stripes is plural, the length of each stripe may be equal or unequal, and the number of the light sources disposed on each stripe may also be equal or unequal, as long as each stripe is disposed along a part of the outer edge of the back of the display such that each of the plurality of light sources corresponds to a predetermined partial pixel region in the outermost periphery of the display region of the display 200.

Similarly, a single row arrangement of the plurality of light sources 101 on a single strip 110 is merely a preferred embodiment. The plurality of light sources 101 may also be arranged in a plurality of rows on a single strip 110. It should be noted that when the plurality of light sources 101 are arranged in a plurality of rows on the single stripe 110, the plurality of light sources at corresponding positions (i.e., the same column position) in different rows correspond to the same predetermined partial pixel region in the outermost periphery of the display region of the display 200.

Similar to fig. 2 (a), the light source 101 in fig. 2 (b)₁～101_m1×n1 Light source 101_1’～101_m1’×n1’._1”～101_m1”×n1”May correspond to the outermost peripheral region of the display area of the display 200. Specifically, the light source 101₁～101_m1×n1Corresponding to a part of the pixel region 201₁～201_m1×n1 Light source 101_1’～101_m1’×n1’Corresponding to a part of the pixel region 201_1’～201_m1’×n1’And so on, lightSource 101_1”～101_m1”×n1”Corresponding to a part of the pixel region 201_1”～201_m1”×n1”. By causing each light source 101 to emit the color and luminance of the partial pixel region 201 corresponding thereto, the light emission of the light source 101 can be made to vary with the variation in color and luminance of the outermost peripheral region of the display 200, thereby enabling the viewer to obtain a more immersive viewing experience.

It should be noted that in fig. 2, the bands 110 are shown as being located at the periphery of the display 200 for ease of viewing.

In the related art, the light emitting apparatus for a display generally arranges a control line for each light source individually to control each light source individually, however, this causes a problem that the tape cannot accommodate a huge number of control lines when the number of light sources is huge.

The invention of the application lies in: instead of employing a separate control line for each light source, each light source in the matrix is controlled separately by electrically connecting several light sources on each strip in a matrix, with control lines being arranged only in each row and each column of the matrix. For example, for a matrix with M rows and N columns, only M + N control lines are required to individually control the M × N light sources associated with the matrix, instead of using M × N control lines to individually control each light source as in the prior art. When there are a plurality of stripes, similarly, one matrix is associated with each stripe, and it is only necessary to arrange control lines for each row and each column in all the matrices associated with all the stripes to individually control the plurality of light sources distributed over the plurality of stripes.

Thus, according to an embodiment of the present application, a light emitting apparatus for a display is provided. Fig. 3 shows an exemplary circuit connection diagram of a light source and a control unit of a light emitting apparatus for a display according to an embodiment of the present application. Fig. 3 shows only the circuit connection of the control unit 120 of the light emitting apparatus 100 for display and the M × N light sources on one stripe as an example. It will be appreciated that when the number of strips is plural, the control unit 120 is also connected to the matrix-type light sources on the other strips in a similar manner. Referring to fig. 1 to 3, the light emitting apparatus 100 for a display includes:

a plurality of light sources 101 distributed over one or more strips 110, each strip having a number of the plurality of light sources arranged thereon, the number of light sources being electrically connected in a matrix on the circuit, the number of rows and columns of the matrix each being greater than 1, and each row and each column of the matrix having control lines arranged to receive a corresponding control signal;

a control unit 120 having output lines corresponding to one or more matrices associated with the one or more stripes, each output line being connected to a corresponding one of the row control lines or the column control lines in the corresponding one of the matrices, the control unit 120 being configured to: acquiring a video signal VSIGNAL from a signal source VSOURCE of the display 200, the video signal being provided to the display 200 for display; determining color and brightness information of each of the plurality of light sources according to a video signal VSIGNAL, wherein each light source corresponds to a predetermined partial pixel region in an outermost periphery of a display region of the display 200; and for each matrix of the one or more matrices, sequentially controlling each row or each column of light sources in the matrix to emit light according to the corresponding color and brightness information within one lighting period.

According to the embodiment of the application, a control method of the light-emitting device for the display is also provided. The control method may be performed by the control unit 120 of the light emitting apparatus 100 for a display, the light emitting apparatus 100 for a display comprising a plurality of light sources distributed over one or more strips, each strip having arranged thereon a number of the plurality of light sources, the number of light sources being electrically connected in a matrix on a circuit, the number of rows and columns of the matrix each being larger than 1, and each row and each column of the matrix having arranged thereon a control line for receiving a corresponding control signal, the control method comprising:

acquiring a video signal VSIGNAL from a signal source VSOURCE of the display 200, the video signal being provided to the display 200 for display;

determining color and brightness information of each of a plurality of light sources according to a video signal VSIGNAL, wherein each light source corresponds to a predetermined partial pixel region in an outermost periphery of a display region of a display; and is

For each matrix of the one or more matrices associated with the one or more stripes, sequentially controlling each row or each column of light sources in the matrix to emit light according to the corresponding color and brightness information within one lighting period.

In this way, for several light sources on each strip, an independent control of each of the several light sources can be achieved by only arranging a control line at each row and each column of the matrix to which the several light sources are connected, thereby achieving an independent control of each of the plurality of light sources on one or more strips with a reduced number of control lines.

In addition, in the present application, when a plurality of light sources are distributed over a plurality of strips, the number of control lines on a single strip can be further reduced by reducing the number of light sources on a single strip, so that it is easy to accommodate the control lines in a strip of limited width. Thus, not only can independent control of each of the plurality of light sources be achieved with a reduced number of control lines, but it can be ensured that a strip of limited width can accommodate the required control lines.

Further, in the embodiments of the present application, the matrix associated with each stripe may have the same or different number of rows or columns. Therefore, the light emitting periods T corresponding to different matrices may be the same or different. It should be noted, however, that the light emitting period T does not exceed 200ms, such as 100ms, 50ms, 100 μ s, 50 μ s, 15 μ s, 1 μ s, and the like. This is because the shortest fixation time of the human eye is 200ms, and the human eye does not feel flickering of the light source due to the periodic refresh when the light emitting period T does not exceed 200 ms.

According to the embodiment of the application, for each matrix in one or more matrices in one lighting period, sequentially controlling each row or each column of light sources in the matrix to emit light according to corresponding color and brightness information in one lighting period comprises: and for each matrix in the one or more matrixes, sequentially controlling each row or each column of light sources in the matrix to emit light according to corresponding color and brightness information in a preset light-emitting interval according to a clock signal in one light-emitting period.

The clock signal has the function of sequentially controlling each row or each column of the light sources in the matrix to emit light according to the corresponding color and brightness information in a time sequence. Specifically, when the lighting period is T, for a matrix with M rows and N columns associated with a certain strip (M, N are all positive integers greater than 1, preferably M, N is not simultaneously 2), when each row of light sources in the matrix is sequentially controlled to emit light according to corresponding color and brightness information within a preset lighting interval, the preset lighting interval may be less than or equal to T/M; when each column of light sources in the matrix is sequentially controlled to emit light according to the corresponding color and brightness information within a preset light emission interval, the preset light emission interval may be less than or equal to T/N.

Sequentially controlling each row of light sources to emit light according to the corresponding color and brightness information within the preset light-emitting interval according to the clock signal may mean that a certain row of light sources to be currently controlled within the current light-emitting period T is determined according to the current clock signal, and the row of light sources is correspondingly controlled to emit light according to the corresponding color and brightness information within the light-emitting interval (e.g., T/M). Similarly, when each column of light sources is controlled in turn, a certain column of light sources to be currently controlled in the current lighting period T is determined according to the current clock signal, and the column of light sources is controlled to emit light according to the corresponding color and brightness information in the lighting interval (e.g., T/N) accordingly. It should be noted that the light source does not necessarily emit light all the time during the entire light emission interval, but may emit light during a part or all of the period of the light emission interval.

Accordingly, the light emitting apparatus 100 for a display may include a clock generator or a clock source to provide a clock signal to the control unit. Alternatively, the light emitting apparatus 100 for display may also receive a clock signal from an external clock generator or clock source. The light emitting apparatus 100 for a display may further include a receiver to receive a video signal VSIGNAL from a signal source VSOURCE of the display and transmit to the control unit 120. The light emitting device 100 for a display may further include one or more stripes 110 in which the plurality of light sources 101 are distributed.

According to the embodiment of the application, sequentially controlling each row of light sources in the matrix to emit light according to corresponding color and brightness information in a preset light-emitting interval according to a clock signal comprises: for a matrix with M rows and N columns in one or more matrices,

the current clock signal is obtained and the current clock signal is obtained,

determining an M-th row of light sources corresponding to a current clock signal, M being a positive integer no greater than M,

activating the m row control line in response to determining the m row light source, an

For each of the m-th row of light sources, the column control line corresponding to the light source is controlled according to the color and luminance information corresponding to the light source, so that the light source emits light according to the corresponding color and luminance information within a preset light emission interval.

Activating the mth row control line in response to determining the mth row light source means: the mth row control line is activated and the remaining row control lines are not activated. Thereby, only the N light sources in the m-th row are controlled in one light emission interval.

At this time, each of the N light sources of the m-th row corresponds to one of the N column control lines. Therefore, by controlling the column control line corresponding to a certain light source in the m-th row according to the color and luminance information corresponding to the light source, the light source can be caused to emit light according to the corresponding color and luminance information within a preset light emission interval. By controlling the N column control lines, each of the N light sources of the m-th row can be caused to emit light in accordance with the corresponding color and luminance information within a preset light emission interval.

Similarly, according to the embodiment of the present application, sequentially controlling each column of light sources in the matrix to emit light according to corresponding color and brightness information within a preset light-emitting interval according to a clock signal includes: for a matrix with M rows and N columns in one or more matrices,

the current clock signal is obtained and the current clock signal is obtained,

determining an nth column of light sources corresponding to a current clock signal, N being a positive integer no greater than N,

activating an nth column control line in response to determining an nth column light source, an

And for each light source in the nth column, controlling a row control line corresponding to the light source according to the color and brightness information corresponding to the light source, so that the light source emits light according to the corresponding color and brightness information in a preset light-emitting interval.

In this way, for each matrix, each row or each column of the matrix may be sequentially controlled to emit light in one light emitting period according to the clock signal, thereby achieving individual control of each light source within the matrix in one light emitting period.

According to the embodiment of the present application, for each of a plurality of light sources, the light source emits light when both of a row control line and a column control line corresponding to the light source are activated, and does not emit light when any one of the row control line and the column control line corresponding to the light source is not activated.

Thus, when the mth row control line is activated, the light emission of the mth row light source depends on the control signals on the corresponding N column control lines. Similarly, when the nth column control line is activated, the emission of the nth column light source is dependent on the control signals on the corresponding M row control lines.

In particular, when each light source includes a plurality of light emitting diodes connected in parallel to the same row control line, the column control line corresponding to the light source includes a plurality of sub-column control lines corresponding to the plurality of light emitting diodes. When any of the sub-column control lines included in the column control line is activated, the column control line corresponding to the light source is activated. Accordingly, when each light source includes a plurality of light emitting diodes connected in parallel to the same column control line, the row control line corresponding to the light source includes a plurality of sub-row control lines corresponding to the plurality of light emitting diodes. When any of the sub-row control lines included in the row control line is activated, the row control line corresponding to the light source is activated.

According to the embodiment of the application, each of the plurality of light sources comprises a light emitting diodes connected in parallel to the same row control line or the same column control line, wherein a is a positive integer.

In this way, each light source comprises at least one light emitting diode. Each light source may emit monochromatic light of varying brightness or color temperature, or colored light of varying brightness and color, by any number of arrangements of light emitting diodes. For example, with one light emitting diode, the light sources may be made to emit monochromatic light of varying brightness, i.e., the brightness of each light source may be made to vary according to the brightness of the corresponding partial pixel region. By using two light emitting diodes, the light source can emit monochromatic light with variable color temperature or partial colored light with variable brightness and color. The light source can emit any color light with variable brightness and color by using at least three light emitting diodes. For example, each light source may be a combination of three light emitting diodes of red R, green G, and blue B, a combination of three light emitting diodes of cyan C, magenta M, and yellow Y, a combination of four light emitting diodes of red R, yellow Y, green G, and blue B, and so on.

It should be noted that, in the present application, when a is 1, that is, one light source includes only one light emitting diode, each column light source or each row light source in the matrix may be sequentially controlled to emit light in a preset light emitting interval according to the clock signal. When a is greater than 1, if a light-emitting diodes are connected in parallel to the same row control line, each row of light sources in the matrix can be sequentially controlled to emit light in a preset light-emitting interval according to a clock signal; if a light emitting diodes are connected in parallel to the same column control line, each column of light sources in the matrix can be sequentially controlled to emit light within a preset light emitting interval according to a clock signal.

Next, a case where each light source includes a light emitting diodes connected in parallel to the same row control line is described.

According to an embodiment of the application, when each light source comprises a light emitting diodes connected in parallel to the same row control line, for each column control line in each matrix: the column control line includes a sub-column control lines connected in parallel, and the output line corresponding to the column control line in the control unit includes a sub-column output lines such that each sub-column output line is connected to a corresponding one of the column control lines.

In this way, an individual control of the individual light emitting diodes in each light source and thus of the lighting of each light source may be achieved.

At this time, M + aN control lines are required for M × N light sources in the M × N matrix for control, and the number of control lines required is greatly reduced compared to the M × aN control lines required in the prior art, thereby facilitating accommodation and control of a greater number of light sources using a stripe of limited width for finer light emission control or adaptation to a larger-sized display.

Further, according to an embodiment of the present application, for each of the m-th row light sources, controlling the column control line corresponding to the light source according to the color and luminance information corresponding to the light source, such that the light source emits light according to the corresponding color and luminance information within a preset light emission interval includes: and for each light source in the m row, controlling the a subcolumn control lines corresponding to the light source according to the color and brightness information corresponding to the light source, so that the light source emits light according to the corresponding color and brightness information in a preset light-emitting interval.

At this time, the N column control lines are expanded to aN, subcolumn control lines, and for each light source in the m-th row, the light source can be caused to emit light according to corresponding color and luminance information within a preset light emission interval by controlling the a subcolumn control lines corresponding to the light source.

Further, according to an embodiment of the present application, controlling the a subcolumn control lines corresponding to the light sources according to color and luminance information corresponding to the light sources, such that the light sources emit light according to the corresponding color and luminance information within a preset light emission interval includes: and for the nth 'light source in the mth row of light sources, N' being a positive integer not greater than N, determining which ones of the a (N '-1) +1 to the an' th subcolumn control lines corresponding to the light source are activated according to the color information corresponding to the light source, and determining the activation periods of the ones determined to be activated within a preset light emission interval according to the luminance information corresponding to the light source, wherein the brighter the luminance indicated by the luminance information corresponding to the light source, the longer the activation periods of the ones within the preset light emission interval.

Specifically, for the nth' light source in the mth row of light sources, the color information corresponding to that light source determines which of the a subcolumn control lines corresponding to that light source are to be activated or which of the corresponding a light emitting diodes are to emit light. These subcolumn control lines are a subset of the a subcolumn control lines. For example, the some subcolumn control lines may be zero subcolumn control lines (all the diodes do not emit light when the corresponding color information is black), one subcolumn control line (e.g., when the light source is an RGB LED, if the corresponding color information is red, only the red light emitting diode emits light), a plurality of subcolumn control lines, or all a subcolumn control lines (e.g., when the light source is an RGB LED, if the corresponding color information is purple, all three light emitting diodes emit light).

Further, when the color information corresponding to the light source determines that more than one of the a subcolumn control lines corresponding to the light source is activated, the color information also determines the proportion of the activation periods of the activated subcolumn control lines. This is because how many color components are represented by the light emission time period. For example, in the case where the light source is an RGB LED, when the color information is purple, since the RGB value of purple is (160, 32, 240), it is necessary to make the ratio of the light emission time periods of RLED, GLED, and BLED to be 160: 32: 240 to emit violet light.

The color information can determine the proportion of the active period of the plurality of sub-column control lines determined to be active, however, it cannot determine the absolute light emission time period.

The light emitting time period of the light emitting diodes of the light source is determined by the brightness information within a preset light emitting interval (e.g., T/M). The activation period of these sub-column control lines activated is determined by the luminance information, thereby determining the light emission period of the light emitting diode. This is because the longer the active period of the sub-column control line (the larger the duty ratio occupied by the active period) is within the preset light emission interval, the longer the light emission period of the light emitting diode is, and thus the higher the luminance of the emitted light is. For example, when a certain light source is to emit violet light with high luminance in the case of an RGB LED, when it is satisfied that the light emission time period does not exceed the preset light emission interval T/M and the ratio of the light emission time periods of RLED, GLED, and BLED is 160: 32: 240, the longer the light emitting period of each of RLED, GLED, and BLED, the brighter the violet light emitted by the light source.

According to an embodiment of the application, for each light emitting diode in each of the plurality of light sources: the light emitting diode emits light when both a row control line and a sub-column control line corresponding to the light emitting diode (when the diodes are connected in parallel to the same row control line) are activated, and does not emit light when any one of the row control line and the sub-column control line corresponding to the light emitting diode is not activated.

In this way, when controlling the N light sources of the mth row to emit light according to the corresponding color and luminance information, different light emission of the N light sources of the mth row is achieved by activating the mth row control line and differently activating the aN subcolumn control lines according to the color and luminance information corresponding to the light emitting diodes of the N light sources.

Further, according to the embodiment of the present application, in order to realize that the light emitting diodes emit light when both the row control line and the sub-column control line corresponding to the light emitting diodes are activated, the M × aN matrix regarding the light emitting diodes may have the following electrical connection: for each sub-column control line in each matrix,

the sub-column control line is connected to a constant high level VCC (e.g., a constant voltage source) or a constant low level VCC (e.g., ground) via a corresponding sub-column switch, a sub-column output line in the control unit corresponding to the sub-column control line is connected to a control electrode (e.g., a gate in the case where the switch is a MOS transistor) of the sub-column switch, and the sub-column control line is activated when the corresponding sub-column switch is closed.

At this time, for each row control line in each matrix: when each sub-column control line is connected to a constant high level via a corresponding sub-column switch, the row control line is connected to a constant low level via a corresponding row switch; when each sub-column control line is connected to a constant low level via the corresponding sub-column switch, the row control line is connected to a constant high level via the corresponding row switch, and wherein a row output line in the control unit corresponding to the row control line is connected to the control pole of the row switch, the row control line being activated when the corresponding row switch is closed.

By this electrical connection, each subcolumn control line is activated when the corresponding subcolumn switch is closed, and each row control line is activated when the corresponding row switch is closed. For example, if the row switch and the sub-column switch are closed when a very high level is controlled, each sub-column control line is activated when the corresponding sub-column output line outputs a high level, and each row control line is activated when the corresponding row output line outputs a high level. Therefore, it can be achieved that when both the row output line and the sub-column output line of the corresponding control unit output a high level, the corresponding light emitting diode is activated to emit light.

All the above description is of the case where each light source comprises a light emitting diodes connected in parallel to the same row control line. This is similar when each light source comprises a light emitting diodes connected in parallel to the same column control line, as described below.

When each light source comprises a light emitting diodes connected in parallel to the same column control line, for each row control line in each matrix: the row control line includes a sub-row control lines connected in parallel, and the output line corresponding to the row control line in the control unit includes a sub-row output lines such that each sub-row output line is connected to a corresponding one of the row control lines.

Further, according to an embodiment of the present application, when each light source includes a light emitting diodes connected in parallel to the same column control line, for each of the n-th column light sources, controlling the row control line corresponding to the light source according to the color and luminance information corresponding to the light source, so that the light source emits light according to the corresponding color and luminance information within a preset light emission interval includes: m 'is a positive integer not greater than M for the M' th light source in the nth column of light sources,

determining which ones of a (m '-1) +1 th to am' th sub-row control lines corresponding to the light source are activated according to the color information corresponding to the light source, and

determines the activation periods of some of the sub-row control lines determined to be activated within a preset lighting interval according to the luminance information corresponding to the light source,

wherein the brighter the brightness indicated by the brightness information corresponding to the light source, the longer the activation periods of some of the sub-row control lines within a preset light emission interval.

At this time, for each light emitting diode in each of the plurality of light sources: the light emitting diode emits light when both the sub-row control line and the column control line corresponding to the light emitting diode are activated, and does not emit light when any one of the sub-row control line and the column control line corresponding to the light emitting diode is inactivated.

At this time, for each sub-row control line in each matrix: the sub-row control line is connected to a constant high level or a constant low level via a corresponding sub-row switch, a sub-row output line corresponding to the sub-row control line in the control unit is connected to a control pole of the sub-row switch, and the sub-row control line is activated when the corresponding sub-row switch is closed.

Accordingly, for each column control line: when each sub-row control line is connected to a constant high level via a corresponding sub-row switch, the column control line is connected to a constant low level via a corresponding column switch; each sub-row control line is connected to a constant high level via a corresponding column switch when the column control line is connected to a constant low level via the corresponding sub-row switch, and wherein a column output line in the control unit corresponding to the column control line is connected to a control pole of the column switch, the column control line being activated when the corresponding column switch is closed.

In addition, each light emitting diode in each light source may comprise a plurality of identical sub-light emitting diodes according to embodiments of the present application. That is, each light emitting diode may be composed of a plurality of identical sub-light emitting diodes connected in series. In this way, the number of light emitting diodes in the light source can be expanded, thereby allowing the light source to emit light of higher brightness.

In addition, according to an embodiment of the present application, determining color and brightness information of each of a plurality of light sources from a video signal includes: for each light source, color and luminance information of each pixel in a partial pixel region corresponding to the arrangement position of the light source is acquired from a video signal, the RGB gamut median color, the HSV gamut median color, the RGB gamut average color, or the HSV gamut average color of all pixels in the partial pixel region is taken as the color information of the light source, and the highest luminance, the lowest luminance, the median luminance, or the average luminance of all pixels in the partial pixel region is taken as the luminance information of the light source.

Further, for each light source, the RGB color gamut median, the HSV color gamut median, the RGB color gamut average, or the HSV color gamut average of all the pixels in the corresponding partial pixel region in one lighting period may be used as the color information of the light source in the current lighting period, and similarly, the maximum luminance, the minimum luminance, the median luminance, or the average luminance of all the pixels in the corresponding partial pixel region in one lighting period may be used as the luminance information of the light source in the current lighting period.

In this way, determination of the color and brightness of each of the plurality of light sources may be achieved such that the color and brightness of each light source varies as the corresponding partial pixel region varies.

Next, referring to fig. 4 and 5, a light source of 16 RGB LEDs is taken as an example to describe the technical solution of the present application. Fig. 4 illustrates a positional arrangement diagram of a light source of a light emitting apparatus for a display according to an exemplary embodiment of the present application on the display, and fig. 5 illustrates an exemplary circuit connection diagram corresponding to the light source illustrated in fig. 4. It should be noted that fig. 4 shows only one strip 110 for the display 200 for ease of description, and correspondingly fig. 5 shows a schematic diagram of the electrical connections of the light sources on a single strip. When there are multiple strips 110 surrounding the display, the multiple strips are sequentially abutted to surround the display 200 for one revolution, and the light sources on each strip are arranged in a matrix arrangement as shown in fig. 5.

As shown in FIG. 4, 16 light sources 101₁～101₁₆Arranged in a single row on the strip 110 to be affixed to the outer edge of the back of the display 200. It should be noted that the single row arrangement is merely an example, and may be arranged in multiple rows on the strip 110. Typically, these light sources cover substantially the entire periphery of the display to correspond to the outermost peripheral region of the display area of the display 200. Similar to fig. 2, the bands 110 are shown as being located at the periphery of the display 200 for ease of viewing. It should be noted that the arrangement of 4 light sources per edge of the display shown in fig. 4 is merely an example, and the number of light sources actually arranged per edge is only an exampleThe amount depends on the side length of the display and the size of the light source used.

Because the length of the strip is fixed, each light source occupies the same length L on the strip, and therefore, the position range of the light source on the strip can be determined according to the number of the light source. Since the stripe 110 covers substantially the entire periphery of the display, the partial pixel area corresponding to the light source can be regarded as a partial pixel area of length L corresponding to the outermost periphery of the display area of the display 200.

In this way, if the attachment start position of the stripe is determined, a partial pixel region in the outermost peripheral region of the display region corresponding to each light source can be determined. For example, when the tape is fixed to begin attaching to the back of the upper left corner of the display shown in FIG. 4, the light source 101₁A light source 101 corresponding to a partial pixel region ranging from 0 to L in position from the upper left corner in the outermost peripheral region of the display region₂Corresponding to a partial pixel region of the outermost region of the display region, whose position ranges from the upper left corner to L-2L₁₆Corresponding to a partial pixel region of 15L-16L from the upper left corner in the outermost region of the display region, and a light source 101₁₆The corresponding partial pixel area has returned approximately to the upper left corner.

It should be noted that the upper left corner is just an example of a pasting start position, and the strip may also be pasted starting from the lower left corner of the display or other positions. As long as the length of the stripe is previously determined to match the circumference of the display and the attachment start position is previously fixed, a partial pixel area in the outermost peripheral area of the display area corresponding to each light source on the stripe may be previously determined.

Further, the length of the strips depends on the number of light sources. For example, when the light sources are RGB LEDs, a 1m stripe includes about 30-120 light sources depending on the light source model. Thus, when determining the type of light source used, a strip of appropriate length may be selected depending on the perimeter of the display to be adapted. For example, when the display 200 is a 60 inch, 65 inch, or 70 inch television, the display can fit into a stripe length of about 5m, with a corresponding number of light sources ranging from 150 to 600.

As shown in FIG. 5, light sources 101 on a strip 110₁～101₁₆Electrically connected in a 4 x 4 matrix. Each light source 101 is composed of a red light emitting diode RLED, a green light emitting diode GLED, and a blue light emitting diode BLED. The three leds of each light source 101 are connected in parallel to the same row control line. Thus, each light source corresponds to one row control line and three column control lines, so that the 4 × 4 matrix of light sources is expanded to a 4 × 12 matrix of light emitting diodes. The row output lines R1 to R4 of the control unit 120 (not shown) are respectively connected to the control electrodes (e.g., gates) of the row switches of the corresponding row, and the sub-column output lines C1 to C12 of the control unit 120 are respectively connected to the control electrodes of the sub-column switches of the corresponding sub-column (the sub-column switches are not shown in fig. 5 for simplicity).

As shown in fig. 1, the control unit 120 may obtain a video signal VSIGNAL from a video signal source VSOURCE of the display 200 and determine the light source 101 according to the video signal VSIGNAL₁～101₁₆Color and brightness information of each light source in (1); and then sequentially controlling the light sources in the first row to the fourth row to emit light according to corresponding color and brightness information in a light emitting interval of T/4 according to the acquired clock signals in a light emitting period T. Since the light emission control method has been described in detail with reference to fig. 2 and 3, it will not be described herein.

It should be noted that fig. 5 only shows one way of electrically connecting the matrix of 16 light sources. The 16 light sources may also be electrically connected in a 2 x 8 matrix. Further, when the number of the light sources on each strip is tens or hundreds, the light sources may have a plurality of matrix electrical connection modes, as long as the number of rows and columns of the matrix is greater than 1. When the number of rows and columns of the matrix is greater than 1 and is not a 2 × 2 matrix, the number of required control lines can be reduced, and independent light emission control of each light source is realized.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (17)

1. Light-emitting device for a display, characterized in that the light-emitting device (100) comprises:

a plurality of light sources distributed over one or more strips, each strip having a number of the plurality of light sources arranged thereon, the number of light sources being electrically connected in a matrix on a circuit, the number of rows and columns of the matrix each being greater than 1, and each row and each column of the matrix having a control line arranged to receive a corresponding control signal; and

a control unit (120) having output lines corresponding to one or more of said matrices associated with one or more of said stripes, each output line being connected to a corresponding one of the row or column control lines in a corresponding one of the matrices, the control unit being configured to:

-acquiring a Video Signal (VSIGNAL) from a signal source (VSOURCE) of a display (200), the video signal being provided to the display for display;

determining color and brightness information of each of the plurality of light sources from the video signal, wherein each light source corresponds to a predetermined partial pixel area in an outermost periphery of a display area of the display; and is

And for each matrix in one or more matrixes, sequentially controlling each row or each column of light sources in the matrix to emit light according to corresponding color and brightness information in one light-emitting period.

2. The light-emitting device for display according to claim 1, wherein for each of one or more of the matrices, sequentially controlling each row or each column of light sources in the matrix to emit light according to corresponding color and brightness information in one light-emitting period comprises: and for each matrix in one or more matrixes, sequentially controlling each row or each column of light sources in the matrix to emit light according to corresponding color and brightness information in a preset light-emitting interval according to a clock signal in one light-emitting period.

3. The light-emitting apparatus for display use according to claim 2,

sequentially controlling each row of light sources in the matrix to emit light according to corresponding color and brightness information in a preset light-emitting interval according to a clock signal comprises: for a matrix with M rows and N columns in one or more of the matrices,

the current clock signal is obtained and the current clock signal is obtained,

determining an M-th row of light sources corresponding to a current clock signal, M being a positive integer no greater than M,

activating the m row control line in response to determining the m row light source, an

For each light source in the m-th row, controlling a column control line corresponding to the light source according to color and brightness information corresponding to the light source, so that the light source emits light according to the corresponding color and brightness information within a preset light-emitting interval; and/or

Sequentially controlling each column of light sources in the matrix to emit light according to corresponding color and brightness information in a preset light-emitting interval according to a clock signal comprises: for one or more of the matrices having M rows and N columns,

the current clock signal is obtained and the current clock signal,

determining an nth column of light sources corresponding to a current clock signal, N being a positive integer no greater than N,

activating an nth column control line in response to determining an nth column light source, an

And for each light source in the nth column, controlling a row control line corresponding to the light source according to the color and brightness information corresponding to the light source, so that the light source emits light according to the corresponding color and brightness information in a preset light-emitting interval.

4. The light-emitting apparatus for display use according to claim 1, wherein for each of the plurality of light sources:

the light source emits light when both the row control line and the column control line corresponding to the light source are activated, and does not emit light when any one of the row control line and the column control line corresponding to the light source is not activated.

5. The light-emitting apparatus for display use according to claim 3, wherein each of the plurality of light sources includes a light-emitting diodes connected in parallel to a same row control line or a same column control line, a being a positive integer.

6. The light-emitting device for display use according to claim 5, wherein when each light source comprises a light-emitting diodes connected in parallel to the same row control line, for each column control line in each matrix:

the column control line includes a sub-column control lines connected in parallel, and the output line corresponding to the column control line in the control unit includes a sub-column output lines such that each sub-column output line is connected to a corresponding one of the column control lines.

7. The light-emitting device for display use according to claim 6, wherein, for each of the m-th row light sources, controlling the column control line corresponding to the light source in accordance with the color and luminance information corresponding to the light source such that the light source emits light in accordance with the corresponding color and luminance information for a preset light-emitting interval comprises:

and for each light source in the m row, controlling a subcolumn control lines corresponding to the light sources according to the color and brightness information corresponding to the light sources, so that the light sources emit light according to the corresponding color and brightness information in a preset light-emitting interval.

8. The light-emitting apparatus for display use according to claim 7, wherein controlling the a subcolumn control lines corresponding to the light sources in accordance with color and luminance information corresponding to the light sources such that the light sources emit light in accordance with the corresponding color and luminance information within a preset light-emitting interval comprises: for the nth 'light source in the mth row of light sources, N' is a positive integer no greater than N,

determining which ones of a (n '-1) +1 to an' th sub-column control lines corresponding to the light source are activated according to color information corresponding to the light source, and

determining an activation period of the some of the sub-column control lines determined to be activated within the preset light emission interval according to luminance information corresponding to the light source,

wherein the brighter the brightness indicated by the brightness information corresponding to the light source, the longer the activation period of the some sub-column control lines within the preset light emission interval.

9. The light-emitting apparatus for display use according to claim 6, wherein for each light-emitting diode in each of the plurality of light sources:

the light emitting diode emits light when both the row control line and the sub-column control line corresponding to the light emitting diode are activated, and does not emit light when any one of the row control line and the sub-column control line corresponding to the light emitting diode is not activated.

10. The light-emitting device for display use according to claim 9, wherein, for each sub-column control line in each matrix:

the sub-column control lines are connected to a constant high level or a constant low level via corresponding sub-column switches,

a sub-column output line of the control unit corresponding to the sub-column control line is connected to a control electrode of the sub-column switch, and

the subcolumn control lines are activated when the corresponding subcolumn switches are closed.

11. The light-emitting device for display use according to claim 10, wherein, for each row control line in each matrix:

when each sub-column control line is connected to a constant high level via a corresponding sub-column switch, the row control line is connected to a constant low level via a corresponding row switch;

when each sub-column control line is connected to a constant low level via the corresponding sub-column switch, the row control line is connected to a constant high level via the corresponding row switch, and

wherein a row output line of the control unit corresponding to the row control line is connected to a control pole of the row switch, the row control line being activated when the corresponding row switch is closed.

12. Light emitting device for display use according to claim 5, characterized in that when each light source comprises a light emitting diodes connected in parallel to the same column control line, for each row control line in each matrix:

the row control line includes a sub-row control lines connected in parallel, and an output line corresponding to the row control line in the control unit includes a sub-row output lines such that each sub-row output line is connected to a corresponding one of the row control lines.

13. The light-emitting apparatus for display use according to claim 12, wherein for each of the light sources in the n-th column, controlling the row control line corresponding to the light source in accordance with the color and luminance information corresponding to the light source so that the light source emits light in accordance with the corresponding color and luminance information for a preset light-emitting interval comprises: m 'is a positive integer not greater than M for the M' th light source in the nth column of light sources,

determining which ones of a (m '-1) +1 th to am' th sub-row control lines corresponding to the light source are activated according to color information corresponding to the light source, and

determining an activation period of the some of the sub-row control lines determined to be activated within the preset light emission interval according to luminance information corresponding to the light source,

wherein the brighter the brightness indicated by the brightness information corresponding to the light source is, the longer the activation periods of the some sub row control lines within the preset light emission interval are.

14. The light-emitting apparatus for display use according to claim 5, wherein each of the a light-emitting diodes comprises a plurality of identical sub-light-emitting diodes.

15. The light-emitting apparatus for a display according to claim 5, wherein each of the plurality of light sources comprises a red light-emitting diode, a green light-emitting diode, and a blue light-emitting diode.

16. The light-emitting apparatus for a display according to claim 1, wherein each of the one or more stripes is arranged along a part of an outer edge of a back portion of the display such that each of the plurality of light sources corresponds to the part of the pixel region corresponding to an arrangement position of the light source in an outermost periphery of a display region of the display.

17. The lighting apparatus for a display according to claim 16, wherein determining color and brightness information of each of the plurality of light sources from the video signal comprises: for each of the light sources it is provided that,

acquiring color and luminance information of each pixel in the partial pixel region corresponding to the arrangement position of the light source from the video signal,

using the RGB color gamut median color, HSV color gamut median color, RGB color gamut average color, or HSV color gamut average color of all the pixels in the partial pixel region as the color information of the light source, and

and taking the highest brightness, the lowest brightness, the median brightness or the average brightness of all the pixels in the partial pixel area as the brightness information of the light source.

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