CN117148625A - Light source assembly, side-in type backlight module and display device - Google Patents
Light source assembly, side-in type backlight module and display device Download PDFInfo
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- CN117148625A CN117148625A CN202311121618.9A CN202311121618A CN117148625A CN 117148625 A CN117148625 A CN 117148625A CN 202311121618 A CN202311121618 A CN 202311121618A CN 117148625 A CN117148625 A CN 117148625A
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- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000012788 optical film Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 description 36
- 238000010586 diagram Methods 0.000 description 17
- 230000017525 heat dissipation Effects 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007772 electroless plating Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 238000000280 densification Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133601—Illuminating devices for spatial active dimming
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The application provides a light source assembly, a side-entry backlight module and a display device, and belongs to the technical field of display equipment. The light source assembly comprises a light guide layer, wherein the light guide layer comprises a light incident surface for light to enter, a first reflecting surface for reflecting light and a second reflecting surface for reflecting light, and the positions of the first reflecting surface and the second reflecting surface are opposite; the convex structure layers are arranged on the second reflecting surface side of the light guide layer and comprise a base body part and a plurality of convex parts arranged on one side of the base body part close to the light guide layer; a plurality of control components configured to control contact or separation between the raised structural layer and the light guiding layer. The corresponding control components control the convex structure layers to be contacted with or separated from the second reflecting surface of the light guide layer, so that the local dimming of the side-entry backlight source can be realized.
Description
Technical Field
The application relates to the technical field of display equipment, in particular to a light source assembly, a side-in backlight module and a display device.
Background
At present, the backlight module adopts a direct type backlight source mode, and local control is required to be performed by increasing the number of lamp beads. To achieve local light source control, a large number of lamp beads are required, so that the cost and the power consumption are high. However, if the side-entry backlight is adopted, that is, the light emission mode based on the cooperation of the light source, the light guide plate and the reflective sheet, local dimming is difficult to achieve.
Disclosure of Invention
The main purpose of the embodiments of the present application is to provide a light source assembly, a side-entry backlight module and a display device, which aim to enable light to be emitted or not emitted from a second emitting surface of a light guiding layer by controlling contact or separation of each protruding structural layer and the first reflecting surface of the light guiding layer, so that local dimming can be realized.
To achieve the above object, a first aspect of an embodiment of the present application provides a light source assembly, including:
the light guide layer comprises a light incident surface for light to enter, a first reflecting surface for reflecting light and a second reflecting surface for reflecting light, wherein the first reflecting surface is opposite to the second reflecting surface;
the convex structure layers are arranged on the second reflecting surface side of the light guide layer, and comprise a base body part and a plurality of convex parts arranged on one side, close to the light guide layer, of the base body part;
a plurality of control components configured to control contact or separation between the raised structural layer and the light guiding layer.
In one embodiment of the present application, the control component is connected to the protruding structure layer, and is used for controlling the protruding structure layer to be close to or far away from the light guiding layer, so that the protruding structure layer is in contact with or separated from the light guiding layer.
In one embodiment of the application, the control assembly includes a control circuit layer and an electro-deformation layer;
the electro-deformation layer is connected with the base body part of the convex structure layer;
the control circuit layer is adhered to the electro-deformation layer and is electrically connected with the electro-deformation layer;
the control circuit layer is used for applying driving voltage to the electro-deformation layer according to the dimming signal so as to enable the electro-deformation layer to deform along the thickness direction, and the protruding structure layer is close to or far away from the light guide layer.
In one embodiment of the application, the control assembly includes a pneumatic control and a pneumatic deformation layer;
the pneumatic deformation layer is connected with the base body part of the convex structure layer;
the pneumatic control piece is electrically connected with the pneumatic deformation layer;
the pneumatic control piece is used for applying air pressure to the pneumatic deformation layer according to the dimming signal so that the pneumatic deformation layer deforms along the thickness direction, and the convex structure layer is close to or far away from the light guide layer.
In one embodiment of the application, the light source assembly further comprises a support layer disposed between the raised structural layer and the electro-deformable layer; or the supporting layer is arranged between the convex structural layer and the pneumatic deformation layer.
In one embodiment of the application, the control assembly comprises a driving member in driving connection with the protruding structural layer, the protruding structural layer being brought into contact with or separated from the light guiding layer by controlling the movement of the protruding structural layer.
In one embodiment of the present application, the light source assembly further includes a reflective layer disposed on the second reflective surface side of the light guide layer, for reflecting light incident on the reflective layer from the light guide layer.
In one embodiment of the present application, the reflective layer is a heat dissipating metal layer.
A second aspect of an embodiment of the present application provides a side-entry backlight module, including:
the light source assembly of any embodiment of the present application;
a light-emitting element provided on the light-incident surface side of the light guide layer;
the optical film is arranged on the first reflecting surface of the light guide layer.
A third aspect of an embodiment of the present application provides a display device, including: display panel, backplate and side income formula backlight unit of the second aspect of this embodiment of the application;
the display panel is arranged on the first reflecting surface side of the light guide layer;
the side-entering type backlight module is arranged in the backboard.
The application provides a light source assembly, a side-entering type backlight module and a display device, wherein the light source assembly comprises a light guide layer, the light guide layer comprises a light entering surface for entering light, a first reflecting surface for reflecting light and a second reflecting surface for reflecting light, and the positions of the first reflecting surface and the second reflecting surface are opposite; the convex structure layers are arranged on the second reflecting surface side of the light guide layer and comprise a base body part and a plurality of convex parts arranged on one side of the base body part close to the light guide layer; a plurality of control components configured to control contact or separation between the raised structural layer and the light guiding layer. The convex structure layer is controlled to be in contact with the second reflecting surface of the light guide layer, so that the convex structure layer can destroy a total reflection light path in the light guide layer, so that light rays are emitted towards the first reflecting surface of the light guide layer, and a display area corresponding to the light-emitting element is bright; the convex structure layer is separated from the second reflecting surface of the light guide layer by controlling, so that the convex structure layer cannot damage the total reflection light path in the light guide layer, light cannot be emitted towards the first reflecting surface of the light guide layer, and the display area corresponding to the light emitting element is dark. Namely, the control component controls each convex structure layer to be contacted with or separated from the second reflecting surface of the light guide layer, so that the local dimming of the side-entry backlight source can be realized.
Drawings
Fig. 1 is a schematic structural diagram of a light source assembly according to a first embodiment of the present application;
fig. 2 is a schematic perspective view of a light source assembly according to a first embodiment of the present application;
fig. 3 is a schematic structural diagram of a light source assembly according to a second embodiment of the present application;
fig. 4 is a schematic structural view of a light source assembly according to a third embodiment of the present application;
fig. 5 is a schematic structural diagram of a light source assembly according to a fourth embodiment of the present application;
fig. 6 is a schematic structural diagram of a light source assembly according to a fifth embodiment of the present application;
fig. 7 is a schematic structural diagram of a light source assembly according to a sixth embodiment of the present application;
fig. 8 is a schematic structural view of a light source assembly according to a seventh embodiment of the present application;
fig. 9 is a schematic structural diagram of a side-entry backlight module according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present application.
Description of main reference numerals:
110-a light guiding layer; 111-light incident surface; 112-a first reflective surface; 113-a second reflective surface; 120-a raised structural layer; 121-a base portion; 122-a boss; 130-a control assembly; 131-a control circuit layer; 132—an electro-deformation layer; 133-pneumatic control; 134-pneumatic deformation layer; 135-a driver; 140-a support layer; 150-a reflective layer; 910 a light source assembly; 920-light emitting element; 930-an optical film; 1010-a display panel; 1020-a back plate; 1030-side entry backlight module.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It should be noted that although functional block division is performed in a device diagram and a logic sequence is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the block division in the device, or in the flowchart. The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Unless defined otherwise, 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. The terminology used herein is for the purpose of describing embodiments of the application only and is not intended to be limiting of the application.
The display device is a device capable of outputting image or touch information, and includes a television, a display, an advertisement machine, and the like. The display device generally includes a backlight module and a liquid crystal glass, and the backlight module may be divided into a side-entry backlight module and a direct-type backlight module according to a setting position of the light incident surface. Currently, if the backlight module adopts a direct type backlight source, local control needs to be performed by increasing the number of lamp beads. To achieve local light source control, a large number of lamp beads are required, so that the cost and the power consumption are high. If the backlight module adopts a side-in backlight, that is, a light emitting mode based on the cooperation of the light source, the light guide plate and the reflecting sheet, local dimming is difficult to realize.
Based on this, the embodiment of the application provides a light source assembly for adjusting the light emitted by the light guide layer, and the control assembly is used for controlling each convex structure layer to be contacted with or separated from the second reflecting surface of the light guide layer, so that the light is emitted or not emitted from the first reflecting surface of the light guide layer, thereby realizing local dimming.
Example 1
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a light source assembly according to a first embodiment of the present application. Fig. 2 is a schematic perspective view of a light source assembly according to an embodiment of the application. As shown in fig. 1, the light source assembly includes:
a light guide layer 110, the light guide layer 110 including a light incident surface 111 into which light enters, a first reflecting surface 112 for reflecting the light, and a second reflecting surface 113 for reflecting the light, the first reflecting surface 112 being opposite to the second reflecting surface 113;
a plurality of convex structure layers 120 disposed on the second reflection surface 113 side of the light guide layer 110, the convex structure layers 120 including a base portion 121 and a plurality of convex portions 122 disposed on a side of the base portion 121 near the light guide layer 110;
a plurality of control elements 130 configured to control contact or separation between the raised structural layer 120 and the light guide layer 110.
In embodiments of the present application, the bump structure layer 120 may be made of a Polycarbonate (PC) material, forming a polycarbonate layer. Alternatively, the bump structure layer 120 is made of a polymethyl methacrylate (PMMA) material, forming a polymethyl methacrylate layer. Specifically, the forming process needs to be made by injection molding or hot pressing. The bump structure layer 120 may be spherical, columnar, etc., and may be set to a height of 0 to 100 μm and a diameter of 0 to 1000 μm.
It should be noted that the size and density of the protruding portion in the protruding structure layer 120 may be designed according to practical needs.
In an embodiment of the present application, in order to improve the uniformity of the brightness of the display screen, the convex portions of the convex structure layer 120 may be arranged along the light propagation direction by thinning and densification.
In the embodiment of the present application, since each of the convex structural layers 120 includes the base portion 121 and the plurality of convex portions 122 disposed on the side of the base portion 121 near the light guiding layer 110, the control component 130 controls the convex structural layers 120 to contact with the light guiding layer 110, that is, controls the plurality of convex portions 122 to contact with the second reflecting surface 113 of the light guiding layer 110, and at this time, the second reflecting surface 113 of the light guiding layer 110 is connected with the convex portions 122, so that the second reflecting surface 113 of the light guiding layer 110 is slightly deformed, and the second reflecting surface 113 of the light guiding layer 110 is no longer flat; meanwhile, since the refractive index of the second reflective surface 113 of the light guiding layer 110 is smaller than that of the protruding portion 122, the contact area between the second reflective surface 113 of the light guiding layer 110 and the protruding portion 122 is light-thinned to light-densified, so that the total reflection light path of the light guiding layer 110 can be broken, and the light is emitted from the first reflective surface 112 of the light guiding layer 110.
In the embodiment of the present application, a plurality of convex structural layers 120 are tiled on the second reflective surface 113 side of the light guiding layer 110, and a plurality of control components 130 are provided to control contact or separation between each convex structural layer 120 and the light guiding layer 110, so that the convex structural layers 120 can break the total reflection light path in the light guiding layer 110 by controlling contact between the convex structural layers 120 and the second reflective surface of the light guiding layer 110, so that light is emitted towards the first reflective surface 112 of the light guiding layer 110, and the display area corresponding to the light emitting element is bright; by controlling the separation of the convex structure layer 120 and the second reflective surface of the light guiding layer 110, the convex structure layer 120 cannot break the total reflection light path in the light guiding layer 110, so that the light cannot be emitted towards the first reflective surface 112 of the light guiding layer 110, and the display area corresponding to the light emitting element is dark. That is, the control component 130 controls the convex structure layers 120 to be contacted with or separated from the light guide layer 110, so as to realize the local dimming of the side-entrance backlight.
Illustratively, the display area corresponding to the light guiding layer 110 includes 6 partitions, including a first partition, a second partition, a third partition, a fourth partition, a fifth partition, and a sixth partition, and each partition is provided with a plurality of corresponding convex structural layers 120 and a control component 130 for controlling the convex structural layers 120 on the second reflective surface 113 side of the light guiding layer 110. The first, third and fifth partitions are controlled to be bright and the second, fourth and sixth partitions are controlled to be dark according to display needs. At this time, the corresponding control component 130 under the first partition controls the corresponding bump structure layer 120 under the first partition to contact the second reflective surface of the light guiding layer 110, so that the first partition is bright. Similarly, the corresponding control component 130 under the third partition controls the corresponding bump structure layer 120 under the third partition to contact the second reflective surface of the light guiding layer 110, so that the third partition is bright. The corresponding control component 130 under the fifth partition controls the corresponding bump structure layer 120 under the fifth partition to contact the second reflective surface of the light guiding layer 110, so that the fifth partition is bright. The corresponding control component 130 under the second partition controls the corresponding bump structure layer 120 under the second partition to be separated from the second reflective surface of the light guiding layer 110, so that the second partition is dark. The corresponding control component 130 under the fourth partition controls the corresponding bump structure layer 120 under the fourth partition to be separated from the second reflective surface of the light guiding layer 110, so that the fourth partition is dark. The corresponding control component 130 under the sixth partition controls the corresponding convex structure layer 120 under the sixth partition to be separated from the second reflective surface of the light guiding layer 110, so that the sixth partition is dark.
Example two
In another embodiment of the present application, the control component 130 is connected to the protruding structure layer 120 for controlling the protruding structure layer 120 to be close to or far from the light guiding layer 110, so that the protruding structure layer 120 is in contact with or separated from the light guiding layer 110.
In the embodiment of the present application, the control component 130 is connected to the corresponding bump structure layer 120, so that the control component 130 can control the corresponding bump structure layer 120 to approach or separate from the light guide layer 110, so that the corresponding bump structure layer 120 contacts or separates from the light guide layer 110.
In one embodiment of the present application, the control assembly 130 includes a control circuit layer 131 and an electro-deformation layer 132;
the electro-deformation layer 132 is connected to the base portion 121 of the bump structure layer 120;
the control circuit layer 131 is bonded to the electro-deformation layer 132 and electrically connected to the electro-deformation layer 132;
the control circuit layer 131 is configured to apply a driving voltage to the electro-deformation layer 132 according to the dimming signal, so that the electro-deformation layer 132 deforms along the thickness direction, and the protrusion structure layer 120 is close to or far from the light guide layer 110.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a light source assembly according to a second embodiment of the present application. As shown in fig. 3, the light source assembly includes:
a light guide layer 110, the light guide layer 110 including a light incident surface 111 into which light enters, a first reflecting surface 112 for reflecting the light, and a second reflecting surface 113 for reflecting the light, the first reflecting surface 112 being opposite to the second reflecting surface 113;
a plurality of convex structure layers 120 disposed on the second reflection surface 113 side of the light guide layer 110, the convex structure layers 120 including a base portion 121 and a plurality of convex portions 122 disposed on a side of the base portion 121 near the light guide layer 110;
a plurality of electro-deformation layers 132 connected to the base portions 121 of the corresponding bump structure layers 120;
the plurality of control circuit layers 131 are adhered to the corresponding electro-deformation layers 132 and electrically connected to the corresponding electro-deformation layers 132.
In the embodiment of the present application, the control circuit layer 131 may apply a driving voltage to the electro-deformation layer 132 according to the dimming signal, so that the electro-deformation layer 132 deforms along the thickness direction. Specifically, when the control circuit layer 131 receives the first dimming signal sent from the display device, the control circuit layer 131 may apply a first driving voltage to the electro-deformation layer 132 correspondingly, so that the electro-deformation layer 132 stretches along the thickness direction under the action of the first driving voltage, and the protrusion structure layer 120 moves along the thickness direction along with the deformation of the electro-deformation layer 132 towards the direction approaching the light guide layer 110, so that the protrusion structure layer 120 contacts the second reflective surface 113 of the light guide layer 110. Therefore, the bump structure layer 120 can destroy the total reflection light path in the light guiding layer 110, so that the light is emitted towards the first reflection surface 112 of the light guiding layer 110, and the display area corresponding to the light emitting element is bright. When the control circuit layer 131 receives the second dimming signal sent by the display device, the control circuit layer 131 can apply a second driving voltage to the electro-deformation layer 132 correspondingly, so that the electro-deformation layer 132 contracts in the thickness direction under the action of the second driving voltage, and the protrusion structure layer 120 moves away from the light guide layer 110 along the thickness direction along with the deformation of the electro-deformation layer 132, so that the protrusion structure layer 120 is separated from the second reflecting surface 113 of the light guide layer 110. Therefore, the convex structure layer 120 cannot destroy the total reflection light path in the light guide layer 110, the light cannot be emitted towards the first reflection surface 112 of the light guide layer 110, and the display area corresponding to the light emitting element is dark.
In embodiments of the present application, the electro-deformable layer 132 may be made of an electro-deformable material. At this time, the control circuit layer 131 may apply the first driving voltage or the second driving voltage to the electro-deformation layer 132 according to the received first dimming signal or the second dimming signal, respectively, so that the electro-deformation layer 132 may be controlled to extend or retract in the thickness direction, and the bump structure layer 120 may be controlled to contact or separate from the second reflective surface 113 of the light guide layer 110. Each of the bump structure layers 120 is provided with a corresponding electro-deformation layer 132 and a control circuit layer 131, so that local dimming of the side-entrance backlight can be achieved by controlling each of the bump structure layers 120 to be in contact with or separated from the second reflective surface 113 of the light guide layer 110.
Example III
In one embodiment of the application, the control assembly 130 includes a control circuit layer 131 and a pneumatic deformation layer 134;
the pneumatic deforming layer 134 is connected with the convex structural layer 120;
the pneumatic control member 133 is bonded to the electro-pneumatic deformation layer 134 and electrically connected to the pneumatic deformation layer 134;
the air pressure control member 133 is configured to apply air pressure to the pneumatic deformation layer 134 according to the dimming signal, so that the pneumatic deformation layer 134 deforms along the thickness direction, and the protruding structural layer 120 is close to or far from the light guiding layer 110.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a light source assembly according to a third embodiment of the present application. As shown in fig. 4, the light source assembly includes:
the light guide layer 110, the light guide layer 110 includes a light incident surface 111 into which light enters, a first reflecting surface 112 from which light is emitted, and a second reflecting surface 113 opposite to the first reflecting surface;
a plurality of convex structure layers 120 disposed on the second reflection surface 113 side of the light guide layer 110, the convex structure layers 120 including a base portion 121 and a plurality of convex portions 122 disposed on a side of the base portion 121 near the light guide layer 110;
a plurality of pneumatic deformation layers 134 connected to the base portions 121 of the corresponding bump structure layers 120;
a plurality of pneumatic control members 133 are electrically connected to the corresponding pneumatic deforming layers 134.
In the embodiment of the present application, the pneumatic control member 133 may apply the driving air pressure to the pneumatic deformation layer 134 according to the dimming signal, so that the pneumatic deformation layer 134 deforms along the thickness direction. Specifically, when the air pressure control member 133 receives the first dimming signal sent by the display device, the air pressure control member 133 may apply the first driving air pressure to the pneumatic deformation layer 134 correspondingly, so that the pneumatic deformation layer 134 stretches along the thickness direction under the action of the first driving air pressure, and the convex structural layer 120 follows the deformation of the pneumatic deformation layer 134 and moves along the thickness direction towards the direction approaching the light guiding layer 110, so that the convex structural layer 120 contacts the second reflecting surface 113 of the light guiding layer 110. Therefore, the bump structure layer 120 can destroy the total reflection light path in the light guiding layer 110, so that the light is emitted towards the first reflection surface 112 of the light guiding layer 110, and the display area corresponding to the light emitting element is bright. When the air pressure control member 133 receives the second dimming signal sent by the display device, the air pressure control member 133 can apply the second driving air pressure to the pneumatic deformation layer 134 correspondingly, so that the pneumatic deformation layer 134 contracts in the thickness direction under the action of the second driving air pressure, and the convex structure layer 120 follows the deformation of the pneumatic deformation layer 134 and moves in the thickness direction in a direction away from the light guide layer 110, so that the convex structure layer 120 is separated from the second reflecting surface 113 of the light guide layer 110. Therefore, the convex structure layer 120 cannot destroy the total reflection light path in the light guide layer 110, the light cannot be emitted towards the first reflection surface 112 of the light guide layer 110, and the display area corresponding to the light emitting element is dark.
In embodiments of the present application, the pneumatic deforming layer 134 may be made of a pneumatic deforming material. At this time, the pneumatic control member 133 may apply the first driving air pressure or the second driving air pressure to the pneumatic deformation layer 134 according to the received first dimming signal or the second dimming signal, so that the pneumatic deformation layer 134 may be controlled to extend or retract in the thickness direction, and the bump structure layer 120 may be controlled to contact or separate from the second reflective surface 113 of the light guide layer 110. Each of the bump structure layers 120 is provided with a corresponding pneumatic deformation layer 134 and pneumatic control 133, so that local dimming of the side-entry backlight can be achieved by controlling each bump structure layer 120 to be in contact with or separated from the second reflective surface 113 of the light guide layer 110.
Example IV
In one embodiment of the present application, the light source assembly further includes a support layer 140, the support layer 140 being disposed between the raised structural layer 120 and the electro-deformation layer 132; or the support layer 140 is disposed between the raised structural layer 120 and the pneumatic deformation layer 134.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a light source assembly according to a fourth embodiment of the present application. As shown in fig. 5, the light source assembly includes:
a light guide layer 110, the light guide layer 110 including a light incident surface 111 into which light enters, a first reflecting surface 112 for reflecting the light, and a second reflecting surface 113 for reflecting the light, the first reflecting surface 112 being opposite to the second reflecting surface 113;
a plurality of convex structure layers 120 disposed on the second reflection surface 113 side of the light guide layer 110, the convex structure layers 120 including a base portion 121 and a plurality of convex portions 122 disposed on a side of the base portion 121 near the light guide layer 110;
a plurality of electro-deformation layers 132 connected to the base portions 121 of the corresponding bump structure layers 120;
a plurality of control circuit layers 131 bonded to the corresponding electro-deformation layers 132 and electrically connected to the electro-deformation layers 132;
a plurality of support layers 140 are disposed between the corresponding bump structure layer 120 and the electro-deformation layer 132.
In the embodiment of the present application, the supporting layer 140 may be a steel sheet. Due to the high rigidity of the steel sheet, the steel sheet is not deformed under the deformation action of the electro-deformation layer 132, and the bump structure layer 120 and the electro-deformation layer 132 can be effectively isolated. Meanwhile, the steel sheet with high rigidity is favorable for improving the flatness of the whole light source assembly.
Example five
Referring to fig. 6, fig. 6 is a schematic structural diagram of a light source assembly according to a fifth embodiment of the present application. As shown in fig. 6, the light source assembly includes:
a light guide layer 110, the light guide layer 110 including a light incident surface 111 into which light enters, a first reflecting surface 112 for reflecting the light, and a second reflecting surface 113 for reflecting the light, the first reflecting surface 112 being opposite to the second reflecting surface 113;
a plurality of convex structure layers 120 disposed on the second reflection surface 113 side of the light guide layer 110, the convex structure layers 120 including a base portion 121 and a plurality of convex portions 122 disposed on a side of the base portion 121 near the light guide layer 110;
a plurality of pneumatic deformation layers 134 connected to the base portions 121 of the corresponding bump structure layers 120;
a plurality of pneumatic control members 133 electrically connected to the corresponding pneumatic deformation layers 134;
a plurality of support layers 140 are disposed between the corresponding raised structural layers 120 and the pneumatic deformation layer 134.
In the embodiment of the present application, the supporting layer 140 may be a steel sheet. Due to the high rigidity of the steel sheet, the steel sheet is not deformed under the deformation action of the pneumatic deformation layer 134, and the convex structure layer 120 and the pneumatic deformation layer 134 can be effectively isolated. Meanwhile, the steel sheet with high rigidity is favorable for improving the flatness of the whole light source assembly.
Example six
In one embodiment of the present application, the light source assembly further includes a reflective layer 150 disposed on the second reflective surface 113 side of the light guide layer 110, for reflecting the light incident from the light guide layer 110 to the reflective layer 150.
In the embodiment of the present application, it is considered that not all the light rays in the light guiding layer 110 are totally reflected or reflected, and some light rays are refracted out of the second reflecting surface of the light guiding layer 110. At this time, by providing the reflective layer 150 on the second reflective surface 113 side of the light guiding layer 110, the light refracted from the light guiding layer 110 can be reflected back into the light guiding layer 110 by the reflective layer 150, so that the light is emitted from the first reflective surface 112 of the light guiding layer 110, and the utilization rate of the light source can be effectively improved.
The reflective layer 150 may be provided on the second reflective surface 113 side of the light guide layer 110. For example, it may be provided to adhere to the surface of the protrusion 122 of the protrusion structure layer 120, i.e., between the protrusion structure layer 120 and the light guide layer 110. It is also possible to provide adhesion to the surface of the base portion 121 of the bump structure layer 120, such as between the bump structure layer 120 and the supporting layer 140, or to the lower surface of the control circuit layer 131, or the like.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a light source assembly according to a sixth embodiment of the present application. As shown in fig. 7, the light source assembly includes:
a light guide layer 110, the light guide layer 110 including a light incident surface 111 into which light enters, a first reflecting surface 112 for reflecting the light, and a second reflecting surface 113 for reflecting the light, the first reflecting surface 112 being opposite to the second reflecting surface 113;
a plurality of convex structure layers 120 disposed on the second reflection surface 113 side of the light guide layer 110, the convex structure layers 120 including a base portion 121 and a plurality of convex portions 122 disposed on a side of the base portion 121 near the light guide layer 110;
a reflective layer 150 adhered to the surface of the protrusion 122 of the protrusion structure layer 120;
a plurality of electro-deformation layers 132 connected to the base portions 121 of the corresponding bump structure layers 120;
a plurality of control circuit layers 131 bonded to the corresponding electro-deformation layers 132 and electrically connected to the electro-deformation layers 132;
a plurality of support layers 140 are disposed between the corresponding bump structure layer 120 and the electro-deformation layer 132.
In the embodiment of the present application, the reflective layer 150 is formed on the upper surface of the protruding portion 122 of the protruding structure layer 120, and specifically, the reflective layer 150 is formed by bonding a high-reflectivity material to the upper surface of the protruding portion 122 of the protruding structure layer 120 by using an electroless plating method. For example, the reflective layer 150 may be formed by bonding metallic silver to the upper surface of the raised portions 122 of the raised structural layer 120 using electroless plating. Finally, the bump structure layer 120 provided with the reflective layer 150 is bonded together to the surface of the support layer 140.
In the embodiment of the present application, the reflective layer 150 is disposed on the second reflective surface 113 side of the light guiding layer 110, so that the light refracted from the light guiding layer 110 can be reflected back into the light guiding layer 110 by the reflective layer 150, and the utilization rate of the light source can be effectively improved.
In one embodiment of the present application, the reflective layer 150 is a heat dissipation metal layer, that is, the reflective layer 150 is made of a heat dissipation metal material. Since the light guide layer 110 is easily deformed by being heated, and the reflective layer 150 is selected to be made of a heat dissipation metal material, by disposing the reflective layer 150 between the bump structure layer 120 and the light guide layer 110, heat dissipation can be performed through the reflective layer 150 when the bump structure layer 120 is in contact with the light guide layer 110. More specifically, in a general backlight module, the heat is higher in the area with bright back, and at this time, the heat can be efficiently dissipated through the reflective layer due to the contact between the convex structure layer 120 and the light guiding layer 110.
In one embodiment of the present application, the bump structure layer 120 may also be made of a heat dissipating metallic material, so that heat dissipation may also be performed directly through the bump structure layer 120. Similarly, the heat is higher in the area with bright back, and the heat dissipation can be performed efficiently by the contact between the convex structure layer 120 and the light guiding layer 110.
In one embodiment of the present application, the support layer 140 may also be made of a heat dissipating metallic material, so that heat dissipation may also be performed together through the support layer. Illustratively, when the reflective layer 150, the bump structure layer 120, and the support layer 140 are all made of a heat dissipating metal, heat dissipation can be performed through the reflective layer 150, the bump structure layer 120, and the support layer 140 together. When the bump structure layer 120 and the supporting layer 140 are both made of heat dissipation metal, the reflective layer may be bonded to the lower surface of the control circuit layer 131 at this time, so that heat dissipation may be performed together through the bump structure layer 120 and the supporting layer 140.
Example seven
In one embodiment of the present application, the control assembly 130 includes an actuator 135, and the actuator 135 drivingly connects the bump structure layers 120, and the bump structure layers 120 are brought into contact with or separated from the light guide layer 110 by controlling the movement of each bump structure layer 120.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a light source assembly according to a seventh embodiment of the present application. As shown in fig. 8, the light source assembly includes:
a light guide layer 110, the light guide layer 110 including a light incident surface 111 into which light enters, a first reflecting surface 112 for reflecting the light, and a second reflecting surface 113 for reflecting the light, the first reflecting surface 112 being opposite to the second reflecting surface 113;
a plurality of convex structure layers 120 disposed on the second reflection surface 113 side of the light guide layer 110, the convex structure layers 120 including a base portion 121 and a plurality of convex portions 122 disposed on a side of the base portion 121 near the light guide layer 110;
the driving member 135 is drivingly connected to the corresponding bump structure layer 120, and controls the movement of the bump structure layer 120 to make the bump structure layer 120 contact with or separate from the light guide layer 110.
In the embodiment of the present application, the driving member 135 is used to drive and connect the convex structure layers 120 without considering the overall thickness of the entire light source assembly, so that the driving member 135 can control each convex structure layer 120 to move along the thickness direction according to the dimming signal, thereby controlling each convex structure layer 120 to contact or separate from the second reflective surface 113 of the light guide layer 110, and also realizing local dimming of the side-entry backlight. The driving member 135 may be a hydraulic device, a motor, or other devices that can drive the bump structure layer 120 to move in the thickness direction. Specifically, when the driving member 135 receives the first dimming signal sent by the display device, the driving member 135 can correspondingly drive the corresponding protruding structure layer 120 to move along the thickness direction in a direction approaching to the light guiding layer 110, so that the protruding structure layer 120 contacts the second reflective surface of the light guiding layer 110. Therefore, the bump structure layer 120 can destroy the total reflection light path in the light guiding layer 110, so that the light is emitted towards the first reflection surface 112 of the light guiding layer 110, and the display area corresponding to the light emitting element is bright. When the driving member 135 receives the second dimming signal sent from the display device, the driving member 135 can correspondingly drive the protrusion structure layer 120 to move away from the light guiding layer 110 along the thickness direction, so that the protrusion structure layer 120 is separated from the second reflecting surface 113 of the light guiding layer 110. Therefore, the convex structure layer 120 cannot destroy the total reflection light path in the light guide layer 110, the light cannot be emitted towards the first reflection surface 112 of the light guide layer 110, and the display area corresponding to the light emitting element is dark.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a side-entry backlight module according to an embodiment of the application. As shown in fig. 9, the side-entry backlight module includes:
the light source assembly 910 provided by any embodiment of the present application;
a light emitting element 920 disposed on the light incident surface 111 side of the light guide layer 110;
the optical film 930 is disposed on the first reflecting surface 112 of the light guiding layer 110.
In the embodiment of the application, since the light source module 910 provided in any embodiment of the application is disposed in the side-in backlight module, the control module 130 of the light source module controls the convex structure layer 120 to contact the second reflective surface 113 of the light guide layer 110 according to the dimming signal, so that the convex structure layer 120 can break the total reflection light path in the light guide layer 110, so that the light is emitted towards the first reflective surface 112 of the light guide layer 110, and the display area corresponding to the light emitting element 920 is bright. The control component 130 controls the separation of the convex structure layer 120 and the second reflective surface 113 of the light guiding layer 110, so that the convex structure layer 120 cannot break the total reflection light path in the light guiding layer 110, and thus the light cannot be emitted towards the first reflective surface 112 of the light guiding layer 110, and the display area corresponding to the light emitting element 920 is dark. That is, the control component 130 controls the convex structure layers 120 to be contacted with or separated from the light guide layer 110, so as to realize the local dimming of the side-entrance backlight.
In one embodiment of the present application, the corresponding bump structure layer 120 and the control assembly 130 are disposed in the light emission control region of the light emitting element 920, respectively.
In the embodiment of the present application, a partition precise control scheme is considered at the beginning of design, that is, the side-entry backlight module performs partition precise control on the plurality of light emitting elements 920, for example, 2 adjacent light emitting elements 920 are used as a partition for control, or 4 adjacent light emitting elements 920 on the upper, lower, left and right are used as a partition for control. I.e., the respective light emission control sections are obtained by performing area division according to the arrangement of the light emitting elements 920. Therefore, in order to meet the dimming requirement of each lighting control partition, the corresponding convex structure layer 120 and the control component 130 can be respectively arranged in each lighting control partition, so that each lighting control partition can control the corresponding convex structure layer 120 to be contacted with or separated from the light guide layer 110 through the corresponding control component 130, the display area corresponding to each lighting control partition is lightened or darkened, and the dimming fineness can be improved.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present application. As shown in fig. 10, the display device includes a display panel 1010, a back panel 1020 and a side-entry backlight module 1030 according to any embodiment of the present application. Wherein:
the display panel 1010 is disposed on the first reflective surface 112 side of the light guiding layer 110 in the side-in backlight module 1030;
the side-in backlight module 1030 is disposed in the back plate 1020.
In the embodiment of the present application, since the display device includes the side-entry backlight module 1030 provided in any one of the embodiments of the present application, the display device has the same advantages as the side-entry backlight module 1030, that is, the local dimming of the side-entry backlight source can be achieved by controlling each of the convex structure layers 120 to contact or separate from the light guide layer 110.
The embodiments described in the embodiments of the present application are for more clearly describing the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.
It will be appreciated by persons skilled in the art that the embodiments of the application are not limited by the illustrations, and that more or fewer steps than those shown may be included, or certain steps may be combined, or different steps may be included.
The apparatus embodiments described above are merely illustrative, in which the units illustrated as separate components may or may not be physically separate, i.e., may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Those of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.
The terms "first," "second," "third," "fourth," and the like in the description of the application and in the above figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the above-described division of units is merely a logical function division, and there may be another division manner in actual implementation, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communicative bonding shown or discussed with respect to each other may be indirect coupling or communicative bonding via interfaces, devices or elements, which may be electrical, mechanical or otherwise.
The units described as separate units may or may not be physically separate, and units displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
The preferred embodiments of the present application have been described above with reference to the accompanying drawings, and are not thereby limiting the scope of the claims of the embodiments of the present application. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the embodiments of the present application shall fall within the scope of the claims of the embodiments of the present application.
Claims (10)
1. A light source assembly, comprising:
the light guide layer comprises a light incident surface for light to enter, a first reflecting surface for reflecting light and a second reflecting surface for reflecting light, wherein the first reflecting surface is opposite to the second reflecting surface;
a plurality of convex structure layers arranged on the second reflecting surface side of the light guide layer, wherein each convex structure layer comprises a base body part and a plurality of convex parts arranged on one side of the base body part close to the light guide layer;
a plurality of control components configured to control contact or separation between the raised structural layer and the light guiding layer.
2. The light source assembly of claim 1, wherein the control assembly is coupled to the raised structural layer for controlling the raised structural layer to move closer to or farther from the light guiding layer such that the raised structural layer is in contact with or separated from the light guiding layer.
3. The light source assembly of claim 2, wherein the control assembly comprises a control circuit layer and an electro-deformation layer;
the electro-deformation layer is connected with the base body part of the convex structure layer;
the control circuit layer is adhered to the electro-deformation layer and is electrically connected with the electro-deformation layer;
the control circuit layer is used for applying driving voltage to the electro-deformation layer according to the dimming signal so as to enable the electro-deformation layer to deform along the thickness direction, and the protruding structure layer is close to or far away from the light guide layer.
4. A light source assembly as recited in claim 3, wherein the control assembly comprises a pneumatic control and a pneumatic deformable layer;
the pneumatic deformation layer is connected with the base body part of the convex structure layer;
the pneumatic control piece is electrically connected with the pneumatic deformation layer;
the pneumatic control piece is used for applying air pressure to the pneumatic deformation layer according to the dimming signal so that the pneumatic deformation layer deforms along the thickness direction, and the convex structure layer is close to or far away from the light guide layer.
5. The light source assembly of claim 4, further comprising a support layer disposed between the raised structural layer and the electro-deformable layer; or the supporting layer is arranged between the convex structural layer and the pneumatic deformation layer.
6. A light source assembly as recited in claim 1, wherein the control assembly comprises a driver drivingly connected to the raised structural layer for controlling movement of the raised structural layer to bring the raised structural layer into and out of contact with the light guide layer.
7. The light source module of claim 1, further comprising a reflective layer disposed on the second reflective surface side of the light guiding layer for reflecting light incident on the reflective layer from the light guiding layer.
8. The light source module of claim 7, wherein the reflective layer is a heat sink metal layer.
9. A side-entry backlight module, comprising:
the light source assembly of any one of claims 1-8;
a light-emitting element provided on the light-incident surface side of the light guide layer;
the optical film is arranged on the first reflecting surface of the light guide layer.
10. A display device, comprising: a display panel, a back plate and the side-entry backlight module of claim 9;
the display panel is arranged on the first reflecting surface side of the light guide layer;
the side-entering type backlight module is arranged in the backboard.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311121618.9A CN117148625A (en) | 2023-08-30 | 2023-08-30 | Light source assembly, side-in type backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311121618.9A CN117148625A (en) | 2023-08-30 | 2023-08-30 | Light source assembly, side-in type backlight module and display device |
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| CN117148625A true CN117148625A (en) | 2023-12-01 |
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| CN202311121618.9A Pending CN117148625A (en) | 2023-08-30 | 2023-08-30 | Light source assembly, side-in type backlight module and display device |
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| CN (1) | CN117148625A (en) |
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