CN204190885U - Splicing display system, LED LCD display and TV - Google Patents

Abstract

The utility model discloses a splicing display system, an LED liquid crystal display and a television. Among them, the splicing display system according to the utility model includes: a display screen, the display screen is composed of at least two display units connected in series, and each display unit is corresponding to a main controller for displaying pictures from the main controller Information; the main controller is connected with its corresponding display unit, and is used to obtain the number of display units connected in series, the resolution parameters and the relative positions of the display unit and other display units, and according to the number of display units of the corresponding display unit, Display the resolution parameters and relative positions of the unit, and cut the input picture information to obtain partial picture information. The utility model solves the technical problems that in the prior art, the difficulty in transportation and installation caused by using a single panel on a large-size TV, and the fixed resolution cannot be customized by users.

Description

Splicing display system, LED LCD display and TV

technical field

The utility model relates to the display field, in particular to a splicing display system, an LED liquid crystal display and a television.

Background technique

High-definition self-luminous LED TV is the mainstream of self-luminous LED display technology at present. The self-luminous LED display panel has realized functions such as ultra-fine pitch, high-definition physical resolution, etc., and has strong color performance ability, obvious advantages in gray scale and contrast, completely It is suitable for displaying signals and images in various video interface forms. At present, 100 inches and above can realize high-definition or full high-definition physical resolution display screens. Compared with other larger-sized TVs, such as LCD and plasma displays, they often It is composed of a single panel, and the physical resolution is fixed, which brings difficulties to the transportation and assembly of the TV, and the flexibility is also poor in use.

Among the currently existing display TVs, larger-sized display TVs are often composed of a single display panel. The display panel generally has a standard physical resolution such as 1920x1080, 1366x768, etc. The length and width of the TV are fixed. First of all, this The larger size of the TV has greater difficulties in transportation and installation, and its flexibility is poor, so it cannot be used as a TV that users can flexibly customize the physical resolution of. For example, it is very difficult for users to achieve 4Kx1K, 8Kx4K physical resolution TVs, and even extremely high-definition physical resolution TVs, which brings great restrictions to the use. In addition, custom-made TVs such as LCDs and PDPs, which use basic unit splicing, often cannot achieve seamless splicing, and when these display devices are spliced, there are obvious black border splicing seams at the splicing place, which makes the visual sense of viewing difficult. cause obvious discomfort.

The shortcoming of existing technology has at least the following points:

1. Large-size TV can only be transported and installed as a whole panel. It cannot be disassembled into a basic unit for installation and transportation, and it is difficult to assemble when transporting at or above 100 inches.

2. The physical resolution of the TV is fixed, and TV products with different physical resolutions are very different, and it is impossible to flexibly realize various standard high-definition, ultra-high-definition and user-customized physical resolution TVs.

3. TVs realized by splicing cannot realize seamless splicing and overall TV viewing, and the splicing of black borders brings discomfort to the visual sense.

4. At present, it is still impossible to realize the TV display with a physical resolution above 4Kx2K.

5. If there is a bad pixel that cannot be repaired, it can only be replaced as a whole.

Aiming at the problems in the prior art that the use of a single panel on a large-size TV causes difficulties in transportation and installation, and the fixed resolution cannot be customized according to users, no effective solution has been proposed yet.

Utility model content

The main purpose of the utility model is to provide a splicing display system, LED liquid crystal display and TV to solve the problems of transportation and installation difficulties caused by using a single panel on a large-size TV, and the fixed resolution cannot be customized according to the user.

In order to achieve the above purpose, according to an aspect of the embodiment of the present utility model, a splicing display system is provided. The splicing display system according to the present invention includes: a display screen, the display screen is formed by at least two display units connected in series, and each display unit is corresponding to a main controller for displaying picture information from the main controller; The main controller is connected to the corresponding display unit, and is used to obtain the number of display units connected in series, the resolution parameters and the relative position between the display unit and other display units, and according to the number of display units of the corresponding display unit, the display unit The resolution parameters and relative positions of the input image information are cut to obtain partial image information.

In order to achieve the above purpose, according to another aspect of the embodiment of the present utility model, an LED liquid crystal display is provided. The LED liquid crystal display according to the utility model includes: a display screen, the display screen is formed by at least two display units connected in series, and each display unit is corresponding to a main controller for displaying picture information from the main controller; The main controller is connected to the corresponding display unit, and is used to obtain the number of display units connected in series, the resolution parameters and the relative position between the display unit and other display units, and according to the number of display units of the corresponding display unit, the display unit The resolution parameters and relative positions of the input image information are cut to obtain partial image information.

In order to achieve the above object, according to another aspect of the embodiments of the present utility model, a TV is provided. The television set according to the utility model includes: a display screen, the display screen is formed by at least two display units connected in series, and each display unit is corresponding to a main controller for displaying picture information from the main controller; The controller is connected to the corresponding display unit, and is used to obtain the number of display units connected in series, the resolution parameter and the relative position between the display unit and other display units, and according to the number of display units of the corresponding display unit, the position of the display unit The resolution parameters and relative positions are used to cut the input picture information to obtain partial picture information.

According to the utility model, the display screen is formed by at least two display units connected in series, and each display unit is corresponding to a main controller for displaying picture information from the main controller; the main controller, together with The corresponding display unit connection is used to obtain the number of display units connected in series, the resolution parameters and the relative position of the display unit and other display units, and according to the number of display units of the corresponding display unit, the resolution parameters of the display unit and Relative position, the input picture information is cut to obtain partial picture information, which solves the problems of transportation and installation caused by using a single panel on a large-size TV in the prior art, and the fixed resolution cannot be customized according to the user.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model. In the attached picture:

Fig. 1 is a schematic structural diagram of a splicing display system according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of screen connection according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a preferred splicing display system according to an embodiment of the present invention;

4 is a schematic diagram of an image processor processing principle according to an embodiment of the present invention; and

Fig. 5 is a schematic diagram of a processing principle of a display controller according to an embodiment of the present invention.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the utility model. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

It should be noted that the terms "first" and "second" in the specification and claims of the present utility model and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence . It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

In its most basic configuration, FIG. 1 is a schematic structural diagram of a spliced display system according to an embodiment of the present invention. The architecture depicted is only one example of a suitable environment for descriptive purposes and is not intended to suggest any limitation as to the scope of use or functionality of the application. Neither should the computing system be interpreted as having any dependency or requirement relating to any one or combination of components shown in FIG. 1 .

As shown in FIG. 1 , the spliced display system provided by this application includes: a display screen 10 and a main controller 12 .

Among them, the display screen 10, the display screen is formed by at least two display units connected in series, and each display unit is corresponding to a main controller for displaying picture information from the main controller; the main controller 12 corresponds to the main controller. Display unit connection, used to obtain the number of display units connected in series, resolution parameters and the relative position of the display unit and other display units, and according to the number of display units of the corresponding display unit, resolution parameters of the display unit and relative position Position, cut the input screen information to obtain partial screen information.

Analysis shows that each display unit contains a main controller. When a display unit is connected in series with other display units, the current display unit respectively obtains the total number of display units connected in series, the resolution parameters of the display units connected in series and the connection between the display unit and the display unit through its corresponding first main controller. The relative position of other display units.

The first main controller corresponding to the current display unit, according to the obtained resolution parameters of other display units connected in series with the current display unit and the relative positions of the current display unit and other display units in the connection in series, The input picture information is cut, and partial picture information suitable for the resolution of the current display unit and corresponding to the relative position of the current display unit is cut out for display on the current display unit corresponding to the first main controller .

The steps provided in the above embodiments of the present application can be performed on the main controller 12, and a main controller is configured for each display unit. When two or more display units are connected in series and display information on a screen, the first main controller of the current display obtains the number of displays connected in series with it, the resolution parameters and the location where the display unit is located. The relative position is to cut the overall picture information, cut out the partial picture information corresponding to the position of the display unit, and display it.

In practical applications, as shown in Figure 2, take the example of using four display units with a resolution of 960*540 to display a 1920*1080 picture, when the above four display units are connected in series in a 2*2 , assuming that the relative position of the current display unit is the upper right, the main controller of the display unit can read the number of display units connected in series, the resolution of other display units and the position of the display unit. The reading of the relative position calculates the image area currently displayed by the display unit. The display image area of the partial information to be displayed by the current display unit is the local image information of the original image information in the area of the 961st pixel to the 1920th pixel on the x-axis and the 0th pixel to the 540th pixel on the y-axis.

Preferably, in the solutions provided by the above embodiments of the present application, the main controller 12 includes: a first processor 121 .

Wherein, the first processor 121 is configured to sequentially assign screen codes to the current display unit according to the connection sequence of the display units.

Through the first processor, the main controller reads the connection sequence of the display units connected in series, and assigns corresponding screen codes to each display unit sequentially according to the connection sequence.

In the actual application, it is still an example to use four display units with a resolution of 960*540 to display a 1920*1080 screen as an example, to obtain the connection sequence of the four display units, and to assign codes to these display units in turn. These codes can more conveniently set the positions of these 4 display units.

Preferably, in the above embodiments of the present application, the main controller 12 includes: a video input interface 123 and a video output interface 125 .

Among them, the video input interface 123, the video output interface 125, the video input interface of the current display unit is connected with the video output interface of the previous display unit in the serial connection. Used to transfer screen information for display on the display unit.

Preferably, in the above-mentioned embodiments of the present application, the video input interface 123 and the video output interface 125 of the main controller 12 include:

The first sub-video input interface 1231 and the second sub-video input interface 1233 ; the first sub-video output interface 1251 and the second sub-video output interface 1253 . One video input interface and video output interface are backup interfaces for the other video input interface and video output interface.

The above two video input interfaces and two video output interfaces pass through the two video input interfaces and two video output interfaces of the main controller corresponding to each display unit. When one of the video input interfaces fails and cannot receive picture information normally , the main controller can automatically switch to obtain picture information from another video input interface. The method of backing up each other by two lines can make the splicing display more stable.

Furthermore, the display unit can also judge the positional relationship between the two display units connected in series through its corresponding main controller according to the connection mode in series. When the first sub-video output interface of the previous display unit is connected to the first sub-video input interface of the second display unit, the first display unit and the second display unit are horizontally arranged according to the order of coding; When the first sub-video output interface of the previous display unit is connected to the second sub-video input interface of the second display unit, the first display unit and the second display unit are vertically arranged according to the encoding sequence. Through the above method, the positional relationship of the screen can be set directly by means of the connection sequence of the cables.

Preferably, in the above embodiments of the present application, the main controller 12 includes: a network interface 127 .

Wherein, the network interface 127 includes a network input interface 1271 and a network output interface 1273, and the network input interface and the network output interface are used for information transmission between display units.

When the connection in series is wire connection, the main controller corresponding to each display unit includes: a network input interface and a network output interface, and the network input interface and network output interface are used for information transmission between the display units. Wherein, the information at least includes: network configuration information, display unit location information, display unit model information, and display unit resolution information.

In practical applications, the staff can configure or manage each display unit directly through the network input interface and network output interface on the main controller corresponding to each display unit, thus realizing the unified management of multiple display units and unified configuration. Each display unit can also read the information of other display units through the network input port and network output port on the corresponding main controller, so as to realize the data interaction between each display unit.

Preferably, in the above-mentioned embodiments of the present application, each display unit is connected in series with each other, and the connection mode is wire connection and/or wireless connection.

In practical applications, the wire connection methods may include: HDMI cable connection, DP cable connection, VGA cable connection and other connection methods. The wireless connection may include: wifi connection, bluetooth connection and other connection methods.

Preferably, in the above embodiments of the present application, the spliced display system further includes: a memory 14 .

Wherein, the memory 14 is connected with the main controller 12, and is used for storing the model of the existing display unit and the model information and resolution information corresponding to the model of the display unit to which it belongs.

In the memory 14, the parameters of the display unit such as the model information of the display unit and the resolution parameter can be stored in the main controller. When multiple display units are connected in series, the first main controller corresponding to the current display unit can be The input interface directly reads the storage in other main controllers to obtain display unit information and resolution information.

Further, when the display unit leaves the factory, various information of all existing display units can be stored in the main controller. When multiple display units are connected in series, the first main controller corresponding to the current display unit only needs to directly read the model information of the main controllers of other display units through the network input interface, and the main controller can directly query and store in the main The resolution information corresponding to this model in the controller.

Preferably, in the above-mentioned embodiments of the present application, FIG. 3 is a schematic structural diagram of a preferred mosaic display system according to an embodiment of the present invention. As shown in FIG. 3 , the main controller 12 includes: an image processor 129 that displays controller 131 .

Wherein, the image processor 129 is connected with the main controller for processing the image displayed by the current display unit; the display controller 131 is connected with the main controller for processing the image quality displayed by the current display unit. control.

In practical applications, the image processor 129, as shown in Figure 4, includes functions such as HDMI decoding and decryption control, image deinterlacing and scaling, HDMI encoding and distribution, and image interception. The physical resolution is M*N. When the input video resolution is greater than M*N, it is proposed to intercept the video area for display. For example, the display unit module is 960*540. When the input resolution is 1920*1080, if the display When the image area is X(0-959), Y(0-479), the upper left corner of the effective image is point (0, 0), then the interception coordinates of the image can be configured through the network port to intercept the image in the unit Displays the display area of the module. When the display unit module is spliced into a TV, the corresponding real unit module displays the corresponding image area, so that the overall input video of the TV area is processed through a digital video interface such as HDMI, decoded by HDMI, and can be decrypted by HDCP Finally, by reading the relevant information of the decoded video, such as the frame rate of the video, resolution, whether the interlaced signal is interlaced, the interlaced video signal is deinterlaced, and the image zoom function is used for corresponding scaling after deinterlacing, such as video by Other resolutions are enlarged to 1920x1080, or scaled to a resolution of 1280x720, and the image is captured synchronously after corresponding scaling. Image capture requires frame memory, and the coordinates of synchronous capture are configured by the user. In this series of modules, the video parameters are read through the network interface, the switch of the deinterlacing function, the switch of the image scaling and the target resolution of the scaling, the block coordinates of the image configuration, etc. In addition, after HDMI decoding and decryption, the programmable logic device is directly output to HDMI encoding and HDCP encryption for output.

In practical application, as shown in FIG. 5 , the display controller proposed by the utility model is mainly used to complete data control and drive processing related to the LED TV panel. The second part of the video data is output by the image processor. The video data is the entire area image that needs to be displayed by the actual display unit module. After being synchronously buffered by the data buffer, it is input to the data control core for processing and frame storage , the storage address is stored according to the predetermined arrangement rules, and at the same time, the parameters of pixel single-point correction are loaded to the frame memory every time the system is powered on. Since each pixel corresponds to a set of corresponding correction data when the pixel is subjected to single-point correction, therefore Every time the data control core module reads a pixel data in the frame memory, it must read its corresponding correction data for subsequent pixel single-point correction processing. For example, if the read pixel data is RGB, then its correction data must be read as DLr , DLg, DLb. Since the correction data only corresponds to the pixels at fixed physical positions on the LED TV, and the video pixels are synchronous and real-time, so the same correction data is loaded and written to the two frame memories at one time after power-on, and the follow-up only needs to be read along with the video data. It is enough to take the correction data of the corresponding position, but the video data is continuously written and read, and the switching of the frame memory is performed in the unit of field cycle by using the ping-pong operation. After the video data is read from the frame memory, gamma correction is performed first. The formula is as follows:

$\mathrm{<span\; class="notranslate">\; the\; y</span>}<span\; class="notranslate">\; =</span>{<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; x</span>}}{\mathrm{<span\; class="notranslate">\; K</span>}}<span\; class="notranslate">\; )</span>}^{\mathrm{<span\; class="notranslate">\; \&gamma;</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>\mathrm{<span\; class="notranslate">\; N</span>}$

In the above formula, x represents the gray level of the input pixel, y is the gray level of the output pixel, and K is the highest value of the input pixel level. For example, when the gray level is 0-255, K is 255, and the gray level is 0-1023 When the degree is high, K is 1023, etc., and N is the highest value of the output pixel level. For example, when the input pixel RGB is 10bit monochrome, that is, the gray scale is 0-1023, and when the output RGB sub-pixel monochrome is 16bit, that is, the gray scale is 0-65535, then K is 1023, and N is 65535. After gamma transformation, pixel single-point correction processing is performed, and the calculated matrix formula is as follows:

R _out ＝R _in *D _R L _R +G _in *D _G L _R +B _in *D _B L _R

G _out ＝R _in *D _R L _G +G _in *D _G L _G +B _in *D _B L _G

B _out ＝R _in *D _R L _B +G _in *D _G L _B +B _in *D _B L _B

Among them, D _R L _R , D _G L _R , D _B L _R are the correction coefficients of sub-pixel red, and so on, there are green and blue sub-pixel correction data, and the red of each output pixel has the input red, green , and the blue color is mixed after weighted by the correction coefficient. After performing single-point calibration, perform brightness adjustment:

R _out ＝R _in *R _coe

G _out ＝G _in *G _coe

B _out ＝B _in *B _coe

In the above formula, B _coe , G _coe , and R _coe are brightness adjustment coefficients, corresponding to blue, green, and red brightness adjustment coefficients. Adjust the brightness of the overall screen by adjusting the corresponding coefficient. Finally, it enters the LED particles to drive the lighting of the LED lamp. The display unit module proposed by the utility model is the key and main part of building an LED TV. The resolution of the LED TV can be spliced by basic display units to realize an LED TV device with an integer multiple of the physical resolution. If the size of the display unit module is 960*540, then the LED display device with a physical resolution of 1920x1080 can be realized by means of 2*2.

Preferably, in the above embodiments of the present application, the above system can be applied to LED displays.

Preferably, in the above-mentioned embodiments of the present application, the above-mentioned system can be applied in a TV set.

The splicing display system proposed by the utility model can flexibly implement any resolution television device that is an integer multiple of its horizontal and vertical resolutions, which greatly facilitates the use of users and realizes the cost of various resolution television devices.

After splicing multiple standard TVs (display units) into a large-size TV or TV wall, the software system can realize:

1. Automatic address allocation: The main controller can automatically shake hands with each display unit and assign a unique ID code to each unit.

2. The fast guidance software can enable the operator to complete the screen coordinate segmentation and splicing of each display unit.

3. Integrate embedded systems and storage devices, and record all factory preparation parameters. After being assembled on site, it can be put into use immediately without addressing and screen division.

The key point of the utility model is to realize the splicing display system, adopt the basic display unit to realize the seamless splicing type TV device method of various resolutions, and can realize high-definition, ultra-high-definition 4K*2K and above resolution LED TV methods, Simultaneously, the system scheme of the basic display unit is also an extremely important key point of the utility model.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence , because according to the present invention, some steps can be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or can be Integrate into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present utility model is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium Among them, several instructions are included to make a computer device (which can be a personal computer, a mobile terminal, a server or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage media include: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disc, etc., which can store program codes. .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A splicing display system, characterized in that it comprises: A display screen, the display screen is formed by at least two display units connected in series, and each of the display units corresponds to a main controller for displaying picture information from the main controller; The main controller is connected to the display unit corresponding to it, and is used to obtain the number of the display units connected in series, the resolution parameter and the relative position between the display unit and other display units, and according to the corresponding The number of display units of the display unit, the resolution parameter of the display unit, and the relative position, and the input picture information is cut to obtain partial picture information. 2. The system according to claim 1, wherein the main control comprises: The first processor is configured to sequentially assign screen codes to the current display units according to the connection sequence of the display units. 3. The system according to claim 1, wherein the main control comprises: A video input interface and a video output interface, wherein the video input interface of the current display unit is connected to the video output interface of the previous display unit in the series connection, and is used to transmit the video data displayed by the display unit. screen information. 4. The system according to claim 3, wherein the video input interface and the video output interface comprise: The first sub-video input interface, the second sub-video input interface, the first sub-video output interface, and the second sub-video output interface; wherein, one of the video input interface and the video output interface is another video input interface and video Alternate interface for the output interface. 5. The system according to claim 1, wherein the main controller comprises: A network interface, wherein the network interface includes a network input interface and a network output interface, and the network input interface and the network output interface are used for information transmission between the display units. 6 . The system according to claim 1 , wherein the display units are connected in series with each other, and the connection mode is wire connection and/or wireless connection. 7 . 7. The system according to claim 1, wherein the mosaic display system comprises: A memory, the memory is connected with the main controller, and is used for storing the model of the existing display unit and the model information and resolution information corresponding to the model of the display unit to which it belongs. 8. The system according to claim 1, wherein the main controller comprises: The image processor is connected with the main controller and is used for processing the image displayed by the current display unit diagram; The display controller is connected with the main controller and is used to control the picture quality currently displayed by the display unit. 9. An LED liquid crystal display, comprising the splicing display system described in any one of 1 to 8 above. 10. A television, comprising the splicing display system described in any one of 1 to 8 above.