CN101783898B - Television - Google Patents

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CN101783898B
CN101783898B CN 201010119288 CN201010119288A CN101783898B CN 101783898 B CN101783898 B CN 101783898B CN 201010119288 CN201010119288 CN 201010119288 CN 201010119288 A CN201010119288 A CN 201010119288A CN 101783898 B CN101783898 B CN 101783898B
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graph card
card
debugging
vcom voltage
lcds
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CN101783898A (en
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黄勇
王卫明
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Hisense Visual Technology Co Ltd
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Qingdao Hisense Electronics Co Ltd
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Abstract

The embodiment of the invention discloses a television which belongs to the technical field of televisions and solves the technical problems that the conventional television has high dependency on external devices and is not convenient to produce and maintain during the debugging of VCOM voltage. The television comprises a liquid crystal display screen and a core circuit board which is electrically connected with the liquid crystal display screen; a graphic card generation module and a signal conversion module are arranged in the core circuit board, wherein graphic card materials are stored in the graphic card generation module, and the graphic card generation module is used for invoking the graphic card materials according to user instructions and inputting the graphic card materials into the signal conversion module; the signal conversion module is used for converting the graphic card materials into signals capable of being displayed by the liquid crystal display screen, and then inputting the signals into the liquid crystal display screen; and the liquid crystal display screen is used for displaying the graphic card pictures for debugging the VCOM voltage according to the signals converted by the signal conversion module. The invention is applied to debugging the VCOM voltage of the liquid crystal display screen of the television.

Description

Television set
Technical field
The invention belongs to technical field of television sets, be specifically related to a kind of television set.
Background technology
Along with the development of television technologies and lcd technology, the popularity of liquid crystal TV set that is provided with LCDs is more and more higher.
Existing liquid crystal TV set, the movement circuit plate that comprises LCDs and be electrically connected with LCDs is provided with signal conversion module in the movement circuit plate, wherein:
Signal conversion module is inputted LCDs after being used for TV signal, video file or game picture etc. are converted to the signal that LCDs can show;
LCDs is used for demonstrating television image, video pictures or game picture etc. according to the signal after the signal conversion module conversion.
Before using LCDs, more clear when guaranteeing LCDs display frame, not glimmering etc. affects the phenomenon of clear picture degree, thereby guarantees that LCDs has good display effect, needs the VCOM voltage of debugging LCDs.
When the VCOM voltage of debugging LCDs, need to show a special image at screen, adjust the result to observe, this special image is called: VCOM voltage debugging graph card.
As shown in Figure 1, when debugging the VCOM voltage of LCDs 1 in the prior art, need the debugging and testing personnel to set up special-purpose testing equipment 5 in LCDs 1, making special-purpose testing equipment 5 form circuit with LCDs 1 is connected, then the testing equipment 5 by special use is converted to the line up signal that LCDs 1 can be identified and show with the debugging of VCOM voltage with graph card, then line up signal is inputted LCDs 1, LCDs 1 can demonstrate VCOM voltage debugging graph card according to the line up signal that receives.LCDs 1 demonstrates the debugging of VCOM voltage with behind the graph card, the debugging and testing personnel just can be when the VCOM voltage of debugging LCDs 1, whether the debugging of VCOM voltage is observed with the demonstration situation of graph card in the limit, adjust to the right place by the VCOM voltage that the debugging of VCOM voltage is observed LCDs 1 with the demonstration situation of graph card.After having debugged the VCOM voltage of LCDs 1, need the debugging and testing personnel that the testing equipment 5 of special use is disassembled on LCDs 1 again.
The inventor finds in realizing process of the present invention, and there is following problem at least in prior art:
When debugging the VCOM voltage of LCDs 1 as shown in Figure 1 in the prior art, must use special-purpose 5 pairs of LCDs of testing equipment 1 input VCOM voltage debugging converted line up signal of graph card, if there is not special-purpose testing equipment 5, just can't demonstrate VCOM voltage debugging graph card in LCDs 1, and then also can't finish debugging to VCOM voltage, simultaneously, because VCOM voltage is to export to LCDs 1 from the TCON drive plate of television set, when television maintenance, if the TCON drive plate has been replaced, then VCOM voltage also can change, at this moment, then must reuse special-purpose 5 pairs of VCOM voltages of testing equipment debugs, if can not find special-purpose testing equipment 5 temporarily, just can't finish the debugging to VCOM voltage, as seen, existing television set is too high to the degree of dependence of external equipment, is not easy to the production of television set, maintenance.
Summary of the invention
The embodiment of the invention provides a kind of television set, has solved existing television set when the debugging of VCOM voltage, and is too high to the degree of dependence of external equipment, is not easy to the production of television set, the technical problem of maintenance.
For achieving the above object, embodiments of the invention adopt following technical scheme:
This television set comprises LCDs and the movement circuit plate that is electrically connected with described LCDs, is provided with graph card generation module and signal conversion module in the described movement circuit plate, stores graphic card materials in the described graph card generation module, wherein:
Described graph card generation module is used for according to user instruction, calls described graphic card materials, and described graphic card materials is inputted described signal conversion module;
Described signal conversion module is used for described graphic card materials is converted to the described LCDs of input behind the signal that described LCDs can show;
Described LCDs is used for demonstrating VCOM voltage debugging graph card picture according to the signal after the described signal conversion module conversion.
Further, described graphic card materials is small data quantity picture or VCOM voltage debugging graph card;
When described graphic card materials was the small data quantity picture, the method that described graph card generation module calls described graphic card materials was specially:
Call in the buffering area of described small data quantity picture to the described movement circuit plate;
It in described buffering area is VCOM voltage debugging graph card with described small data quantity photo finishing;
Described VCOM voltage debugging is inputted described signal conversion module with graph card.
Further, the generation method of described small data quantity picture may further comprise the steps:
Analyze the debugging of described VCOM voltage with graph card in the horizontal direction and the number of the pixel on the vertical direction what;
According to the number of the pixel on described horizontal direction and the vertical direction what, at the subregion intercepting small size graph card of described VCOM voltage debugging with graph card.
Further, described small size graph card intercepts in the upper left corner, the upper right corner, the lower left corner or the lower right corner of described VCOM voltage debugging with graph card.
Further, described small data quantity picture comprises that also horizon glass is as little graph card, vertical wherein one or more of the little graph card of mirror image and the little graph card of the vertical mirror image of level, wherein:
Described horizon glass is that described small size graph card along continuous straight runs mirror transformation generates as little graph card;
The little graph card of described vertical mirror image is the vertically mirror transformation generation of described small size graph card;
The little graph card of the vertical mirror image of described level is again vertically mirror transformation generation behind the described small size graph card along continuous straight runs mirror transformation.
Further, described graph card generation module in described buffering area is the debugging of VCOM voltage with described small data quantity photo finishing with the method for graph card, may further comprise the steps:
Repeat in the buffering area in described movement circuit plate, splice one by one described small size graph card and/or described horizon glass as little graph card and/or the little graph card of described vertical mirror image and/or the little graph card of the vertical mirror image of described level until splice described VCOM voltage debugging graph card.
Further, the described LCDs signal that can show is LVDS signal or RSDS signal.
Further, described graph card generation module is software module.
Further, described graph card generation module is stored in the embedded processing chip of described movement circuit plate.
Further, the described graph card generation module osd function module that is described television set.
Compared with prior art, technique scheme provided by the present invention has following advantage:
Owing to being provided with the graph card generation module in the movement circuit plate of television set provided by the present invention, store graphic card materials in the graph card generation module, and the graph card generation module can also be according to user instruction, call graphic card materials, with graphic card materials input signal modular converter, and signal conversion module is inputted LCDs after graphic card materials can being converted to the signal that LCDs can show, LCDs can demonstrate VCOM voltage debugging graph card picture according to signal after the signal conversion module conversion again, as seen, use graph card generation module and signal conversion module just can make among the present invention to demonstrate the debugging of VCOM voltage on the LCDs and use the graph card picture, and then satisfy the needs that VCOM voltage is debugged.
Because the graph card generation module is the functional module in the movement circuit plate, part for the movement circuit plate, during normal use television set of the present invention, the movement circuit plate also must be electrically connected with LCDs, need not the movement circuit plate is dismantled after using complete this LCDs of movement circuit board test, compared with prior art, during the debugging of VCOM voltage, no matter in the production process of television set of the present invention, or during television maintenance, all need not to use special-purpose testing equipment, and then also omitted setting up between testing equipment special-purpose in the prior art and the LCDs, disassembling section this shows, the present invention is very low to the degree of dependence of external equipment, so solved existing television set when the debugging of VCOM voltage, too high to the degree of dependence of external equipment, be not easy to the production of television set, the technical problem of maintenance.
Description of drawings
Fig. 1 is when debugging VCOM voltage in the prior art, special-purpose testing equipment and the annexation schematic diagram of LCDs;
A schematic diagram of the annexation of movement circuit plate and LCDs in the television set that Fig. 2 provides for embodiments of the invention;
Another schematic diagram of the annexation of movement circuit plate and LCDs in the television set that Fig. 3 provides for embodiments of the invention;
The idiographic flow schematic diagram of the method for graphic card materials is called in the debugging of VCOM voltage in the television set that Fig. 4 embodiments of the invention provide with graph card;
The idiographic flow schematic diagram of the generation method of the small data quantity picture that Fig. 5 provides for embodiments of the invention;
The VCOM voltage debugging that Fig. 6 provides for embodiments of the invention is debugged the schematic diagram of the small size graph card that intercepts with graph card from VCOM voltage with graph card and after amplifying;
The enlarged diagram of debugging the small size graph card that intercepts with graph card from VCOM voltage that Fig. 7 provides for embodiments of the invention;
Fig. 8 is that small size graph card shown in Figure 7 splices the figure that three row form continuously one by one;
Another the enlarged diagram of debugging the small size graph card that intercepts with graph card from VCOM voltage that Fig. 9 provides for embodiments of the invention;
Figure 10 is that small size graph card shown in Figure 9 splices the figure that three row form continuously one by one;
Figure 11 is the schematic diagram of the little graph card of vertical mirror image of small size graph card generation shown in Figure 9;
Figure 12 is small size graph card shown in Figure 9 and the as shown in figure 11 vertical figure that is spliced to form one by one of the little graph card of mirror image that generated by small size graph card as shown in Figure 9.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
The embodiment of the invention provides that a kind of VCOM voltage debugging cost is low, the degree of dependence to external equipment in the VCOM voltage debug process is also lower, the television set that the debugging of VCOM voltage is more convenient.
As shown in Figure 2, the television set that the embodiment of the invention provides comprises LCDs 1 and the movement circuit plate 2 that is electrically connected with LCDs 1, is provided with graph card generation module 3 and signal conversion module 4 in the movement circuit plate 2, store graphic card materials in the graph card generation module 3, wherein:
Graph card generation module 3 is used for according to user instruction, calls graphic card materials, with graphic card materials input signal modular converter 4;
Signal conversion module 4 is used for graphic card materials is converted to input LCDs 1 behind the signal that LCDs 1 can show;
LCDs 1 is used for demonstrating VCOM voltage debugging graph card picture according to the VCOM voltage debugging after signal conversion module 4 conversions with graph card.
Owing to being provided with graph card generation module 3 in the movement circuit plate 2 of television set provided by the present invention, store graphic card materials in the graph card generation module 3, and graph card generation module 3 can be according to user instruction, call graphic card materials, with graphic card materials input signal modular converter 4, and signal conversion module 4 can be converted to graphic card materials input LCDs 1 behind the signal that LCDs 1 can show, LCDs 1 can demonstrate VCOM voltage debugging graph card picture with graph card according to the VCOM voltage debugging after signal conversion module 4 conversions again, as seen, use graph card generation module 3 and signal conversion module 4 just can make among the present invention to demonstrate the debugging of VCOM voltage on the LCDs 1 and use the graph card picture, and then satisfy the needs that VCOM voltage is debugged.
Because graph card generation module 3 is the functional module in the movement circuit plate 2, part for movement circuit plate 2, during normal use television set of the present invention, movement circuit plate 2 also must be electrically connected with LCDs 1, using movement circuit plate 2 to test this LCDs 1 need not movement circuit plate 2 is dismantled afterwards, compared with prior art, during the debugging of VCOM voltage, no matter in the production process of television set of the present invention, or during television maintenance, all need not to use special-purpose testing equipment 5, and then also omitted setting up between testing equipment 5 special-purpose in the prior art and the LCDs 1, disassembling section, this shows, the present invention is very low to the degree of dependence of external equipment, so solved existing television set when the debugging of VCOM voltage, too high to the degree of dependence of external equipment, be not easy to the production of television set, the technical problem of maintenance.
Graphic card materials is small data quantity picture or VCOM voltage debugging graph card in the present embodiment; As shown in Figure 3 and Figure 4, when graphic card materials was the small data quantity picture, the method that graph card generation module 3 calls graphic card materials was specially:
S1, call in the buffering area 6 of small data quantity picture to the movement circuit plate 2;
S2, interior at buffering area 6 be VCOM voltage debugging graph card with the small data quantity photo finishing;
S3, with VCOM voltage debugging with graph card input signal modular converter 4.
Because the debugging of VCOM voltage is stored in more greatly and generally the static storage area of movement circuit plate 2 with the graph card data volume; can occupy the static storage of a large amount of movement circuit plates 2; and the static storage of movement circuit plate 2 is limited usually; but (or claim: the dynamic memory space) space is large for buffering area 6; the shared static storage of small data quantity picture is little; saved the static storage of movement circuit plate 2; because the VCOM voltage that graph card generation module 3 forms by small data quantity photo finishing debugging is stored in the buffering area 6 in the movement circuit plate 2, so can also take full advantage of the buffering area 6 of movement circuit plate 2 with graph card.
As shown in Figure 5, the generation method of small data quantity picture as shown in Figure 7 in the present embodiment may further comprise the steps:
S01, analyze the debugging of VCOM voltage with graph card in the horizontal direction and the number of the pixel on the vertical direction what;
S02, according to the number of the pixel on horizontal direction and the vertical direction what, at the subregion intercepting small size graph card of VCOM voltage debugging with graph card.
Because the debugging of VCOM voltage is comparison rule usually with graph card, uniform picture, can be by repeating to show that the debugging of VCOM voltage is with the subregion on the graph card, splice whole VCOM voltage debugging graph card, simultaneously, because the data volume of small size graph card is less than the data volume of whole VCOM voltage debugging with graph card, so can be by with the mode of the subregion intercepting small size graph card of graph card the debugging of VCOM voltage being treated to the small data quantity picture with graph card in VCOM voltage debugging, and then be that complete VCOM voltage is debugged and used graph card by connecting method with the small data quantity photo finishing.
The VCOM voltage debugging that meets LCDs 1 pixel quantity requirement or only is 2 multiple with graph card in the horizontal direction or the pixel on the vertical direction or be 4 multiple;
The below is to splice the debugging of VCOM voltage elaborates embodiment of the invention VCOM voltage debugging usefulness graph card as example with graph card joining method by the small size graph card that repeats to splice the present embodiment and provided on vertical direction and horizontal direction.
If VCOM voltage debugging is 4 multiple with the pixel of graph card vertical direction, can use the upper left corner intercepting pixel of graph card in the debugging of VCOM voltage is the small size graph card of 12*20 as shown in Figure 7, then successively in the horizontal direction, vertical direction repeats to splice small size graph card or the vertical little graph card of mirror image one by one, concrete steps are as follows:
The first row uses small size graph card as shown in Figure 7 to repeat one by one splicing;
The small size graph card that the second row reuses as shown in Figure 7 repeats splicing one by one;
The small size graph card that the third line reuses as shown in Figure 7 repeats splicing one by one.
By above method, that can risk is identical with the graph card pattern with VCOM voltage debugging, the identical or size of size greater than the debugging of VCOM voltage with graph card large graph card as shown in Figure 8.
The small size graph card intercepts in the upper left corner, the upper right corner, the lower left corner or the lower right corner of VCOM voltage debugging with graph card.The present embodiment small-medium size graph card is preferably and intercepts in the upper left corner of VCOM voltage debugging with graph card.Because what all meet country or international standard for the size of LCDs 1 and the number of pixel, the debugging of VCOM voltage is rectangle usually with graph card, VCOM voltage debugging is the maximum pattern of number of repetition usually with one of them place, right angle of the graph card especially pattern in the upper left corner, so intercepting is conducive to reduce the difficulty that graph card is used in the debugging of splicing VCOM voltage like this.Certainly, the present embodiment small-medium size graph card also can intercept in the central area of VCOM voltage debugging with graph card.
The small data quantity picture comprises that also horizon glass is as little graph card, vertical wherein one or more of the little graph card of mirror image and the little graph card of the vertical mirror image of level, wherein:
Horizon glass is that small size graph card along continuous straight runs mirror transformation generates as little graph card;
Vertically the little graph card of mirror image is the vertically mirror transformation generation of small size graph card;
The little graph card of the vertical mirror image of level is again vertically mirror transformation generation behind the small size graph card along continuous straight runs mirror transformation.
The little graph card of the vertical mirror image of level also can be with the first along continuous straight runs mirror transformation and generating again behind the mirror transformation vertically of small size graph card in the present embodiment.
The below take VCOM voltage debugging with the pixel of graph card vertical direction only as 2 multiple as example, further elaborate the joining method that the embodiment of the invention provides.
If VCOM voltage debugging only is 2 multiple with the pixel of graph card vertical direction, can intercept pixel with the upper left corner of graph card in the debugging of VCOM voltage be the small size graph card of 12*18 as shown in Figure 9.
With as shown in Figure 9 small size graph card in the horizontal direction and repeat splicing on the vertical direction, that finally risks is identical or discontinuous with graph card large graph card demonstration as shown in figure 10 greater than the debugging of VCOM voltage with the graph card size with the debugging of VCOM voltage, inhomogeneous, cause pattern different.
At this moment, with small size graph card as shown in Figure 9 vertically mirror transformation generate as shown in figure 11 the little graph card of vertical mirror image, then, as shown in figure 12, repeat one by one in the horizontal direction to splice small size graph card or the vertical little graph card of mirror image, concrete steps are as follows:
The first row is used as shown in Figure 9, and the small size graph card repeats splicing one by one;
Second exercise with as shown in figure 11 vertically the little graph card of mirror image repeat one by one to splice;
The third line reuses as shown in Figure 9, and the small size graph card repeats splicing one by one.
By above method, that finally can risk is identical with the graph card pattern with VCOM voltage debugging, the identical or size of size greater than the debugging of VCOM voltage with graph card large graph card as shown in figure 12.
How more than to have set forth the small size graph card that provides by the present embodiment and vertically the little graph card of mirror image splices continuously, VCOM voltage is debugged and used graph card uniformly, certainly, can also be in the horizontal direction in the present embodiment and/or the small size graph card that provides by the present embodiment on the vertical direction, vertically the little graph card of mirror image, horizon glass splice VCOM voltage debugging graph card as little graph card and the little graph card of the vertical mirror image of level.
Use small size graph card, the vertical little graph card of mirror image can guarantee that the VCOM voltage debugging that is spliced distributes continuous, even with graph card in the vertical direction pixel in the present embodiment;
Use small size graph card, horizon glass can guarantee that as little graph card the VCOM voltage debugging that is spliced is continuous, even with in the horizontal direction pixel distribution of graph card;
Use small size graph card, the little graph card of the vertical mirror image of level can guarantee the VCOM voltage debugging that is spliced with graph card simultaneously on vertical direction and horizontal direction pixel all distribute continuously, even
As shown in Figure 3, graph card generation module 3 is the method that graph card is used in the debugging of VCOM voltage according to user instruction with the small data quantity photo finishing, may further comprise the steps:
Buffering area 6 interior repetitions in movement circuit plate 2, one by one splice small size graph card and/or horizon glass as little graph card and/or vertically the little graph card of mirror image and/or the little graph card of the vertical mirror image of level until splice VCOM voltage debugging graph card.
Because VCOM voltage debugging is pixel distribution rule, evenly and the picture consistent with the pixel regularity of distribution of LCDs 1 usually with graph card, thus by above method can be movement circuit plate 2 in buffering area 6 interiorly splice whole VCOM voltage and debug and use graph card.
The signal that LCDs 1 can show is LVDS signal or RSDS signal.General LCDs 1 is provided with usually for the LVDS interface or the RSDS interface that receive LVDS signal or RSDS signal, so this versatility that helps improve television set of the present invention that is designed with.
Certainly, signal conversion module 4 can also use other input interfaces of LCDs 1 that the debugging of VCOM voltage is inputted LCDs 1 with graph card and graph card idsplay order.
Technical solution of the present invention can also be applied to similar television set other be provided with the electronic equipment of LCDs 1 and movement circuit plate 2.
As the further improvement of the embodiment of the invention, graph card generation module 3 is software module in the present embodiment.When graph card generation module 3 is software module, movement circuit plate 2 is when different LCDs 1 matches, only need to write to graph card generation module 3 parameter, graphic card materials and/or the VCOM voltage debugging graph card of the LCDs 1 that needs cooperation, just can realize the debugging to LCDs 1VCOM voltage, compared with prior art need not to change special-purpose testing equipment 5 as shown in Figure 1, even need not to change VCOM voltage debugging graph card.
Graph card generation module 3 is stored in the embedded processing chip of movement circuit plate 2.Be provided with the embedded processing chip in the general movement circuit plate, this being designed with is beneficial to the existing resource that more takes full advantage of the movement circuit plate.Certainly, graph card generation module 3 can also be stored within other interior chips of movement circuit plate in the present embodiment.
As the further improvement of the embodiment of the invention, graph card generation module 3 is that (on-screen display, Chinese is translated into: the screen menu type regulative mode) functional module for the OSD of television set in the present embodiment.
The osd function module of television set can be by display menu mode LCDs 1 work in every index is as shown in Figure 2 comprised that color, pattern, geometry etc. adjust, thereby make LCDs reach best use state, so the suitable VCOM voltage that is applied to transfer the survey LCDs.
Certainly, technique scheme provided by the present invention can also be applied to LCD computer etc. other are provided with in the electronic equipment of LCDs.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims (6)

1. television set, it is characterized in that: comprise LCDs and the movement circuit plate that is electrically connected with described LCDs, be provided with graph card generation module and signal conversion module in the described movement circuit plate, store graphic card materials in the described graph card generation module, described graphic card materials is small data quantity picture or common mode reference voltage V COM voltage debugging graph card; Wherein:
Described graph card generation module is used for according to user instruction, calls described graphic card materials, and described graphic card materials is inputted described signal conversion module;
Described signal conversion module is used for described graphic card materials is converted to the described LCDs of input behind the signal that described LCDs can show;
Described LCDs is used for demonstrating VCOM voltage debugging graph card picture according to the signal after the described signal conversion module conversion; Wherein,
When described graphic card materials was the small data quantity picture, the method that described graph card generation module calls described graphic card materials was specially:
Call in the buffering area of described small data quantity picture to the described movement circuit plate;
It in described buffering area is VCOM voltage debugging graph card with described small data quantity photo finishing;
Described VCOM voltage debugging is inputted described signal conversion module with graph card.
2. television set according to claim 1, it is characterized in that: the generation method of described small data quantity picture may further comprise the steps:
Analyze the debugging of described VCOM voltage with graph card in the horizontal direction and the number of the pixel on the vertical direction what;
According to the number of the pixel on described horizontal direction and the vertical direction what, at the subregion intercepting small size graph card of described VCOM voltage debugging with graph card.
3. television set according to claim 2 is characterized in that: described small size graph card intercepts in the upper left corner, the upper right corner, the lower left corner or the lower right corner of described VCOM voltage debugging with graph card.
4. according to claim 2 or 3 described television sets, it is characterized in that: described small data quantity picture comprises that also horizon glass is as little graph card, vertical wherein one or more of the little graph card of mirror image and the little graph card of the vertical mirror image of level, wherein:
Described horizon glass is that described small size graph card along continuous straight runs mirror transformation generates as little graph card;
The little graph card of described vertical mirror image is the vertically mirror transformation generation of described small size graph card;
The little graph card of the vertical mirror image of described level is again vertically mirror transformation generation behind the described small size graph card along continuous straight runs mirror transformation.
5. television set according to claim 4 is characterized in that: described graph card generation module in described buffering area is the debugging of VCOM voltage with described small data quantity photo finishing with the method for graph card, may further comprise the steps:
Repeat in the buffering area in described movement circuit plate, splice one by one described small size graph card and/or described horizon glass as little graph card and/or the little graph card of described vertical mirror image and/or the little graph card of the vertical mirror image of described level until splice described VCOM voltage debugging graph card.
6. according to claim 1 to 3 arbitrary described television sets, it is characterized in that: the signal that described LCDs can show is Low Voltage Differential Signal LVDS signal or low-swing difference signal RSDS signal.
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CN1900772A (en) * 2005-07-18 2007-01-24 环隆电气股份有限公司 Method and device for regulating liquid crystal panel flash
CN101577098A (en) * 2008-05-08 2009-11-11 奇美电子股份有限公司 Liquid crystal display and drive method thereof

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