WO2014110856A1 - 一种液晶拼接屏及其校正方法和一种液晶显示装置 - Google Patents

一种液晶拼接屏及其校正方法和一种液晶显示装置 Download PDF

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Publication number
WO2014110856A1
WO2014110856A1 PCT/CN2013/071896 CN2013071896W WO2014110856A1 WO 2014110856 A1 WO2014110856 A1 WO 2014110856A1 CN 2013071896 W CN2013071896 W CN 2013071896W WO 2014110856 A1 WO2014110856 A1 WO 2014110856A1
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WIPO (PCT)
Prior art keywords
liquid crystal
display
chromaticity
crystal display
adjustment device
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PCT/CN2013/071896
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English (en)
French (fr)
Inventor
许神贤
李纯怀
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深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/824,351 priority Critical patent/US9105245B2/en
Publication of WO2014110856A1 publication Critical patent/WO2014110856A1/zh

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1446Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/02Composition of display devices
    • G09G2300/026Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0233Improving the luminance or brightness uniformity across the screen
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0242Compensation of deficiencies in the appearance of colours
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/08Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a liquid crystal splicing screen, a method of correcting the same, and a liquid crystal display device.
  • the liquid crystal splicing screen is formed by splicing two or more liquid crystal display devices, and if the panels of the liquid crystal display devices display different brightness, flicker or chromaticity in the same color, the display effects are different. Then, the viewer sees the picture that is not continuous when the panel is connected. Therefore, when the panel factory is making, it is necessary to select the LED lamp with the same brightness and chromaticity to provide backlight, and also to control the degree of the panel in the production process to reduce the gap between the film and the film, so cumbersome, except Increasing costs also increases design difficulties.
  • the technical problem to be solved by the present invention is to provide a liquid crystal splicing screen and a correction method thereof and a liquid crystal display device which reduce design difficulty and cost.
  • a liquid crystal splicing screen comprising a plurality of liquid crystal display devices, the liquid crystal display device comprising a liquid crystal panel, a driving circuit for controlling the display of the liquid crystal panel, the driving circuit comprising an adjusting device storing display parameters; the plurality of liquid crystal display devices The display parameters of the adjustment device of at least two liquid crystal display devices are different.
  • the adjusting device includes an interface module connected to the external debugging device, and the adjusting device reads and stores the display parameter from the interface module.
  • the display parameters can be adjusted, so that the unified debugging can be performed when the video wall is spliced, and then the display parameters of each liquid crystal display device are correspondingly written, even during the use, the display effect between the liquid crystal display devices appears. The deviation can also be corrected by modifying the display parameters.
  • the display parameter includes a gamma value and a chrominance value
  • the driving circuit includes a timing control chip for controlling display of the liquid crystal panel
  • the adjusting device further includes an gamma value adjustable respectively coupled to the interface module.
  • the output signal of the voltage buffer unit is coupled to the liquid crystal panel.
  • the display parameter includes one or two of a gamma value or a chromaticity value, and the adjustment is two.
  • the gamma value you can adjust any one or two of the brightness and flicker in the LCD panel display effect; by adjusting the chromaticity value, you can adjust the chromaticity in the LCD panel display effect.
  • a display correction method for a liquid crystal splicing screen includes at least two liquid crystal display devices, the liquid crystal display device includes a liquid crystal panel, and a driving circuit for controlling display of the liquid crystal panel, wherein the driving circuit includes a display parameter for storing An adjustment device; the adjustment device includes an interface module connected to an external debugging device; the calibration method includes:
  • step C Adjust the display parameters of the liquid crystal display device so that the display effect of the comparison screen is consistent with the reference effect. Further, in the step C: the optical sensing system writes the debugged display parameters into the adjustment and adjustment device through the interface module.
  • the display parameters can be adjusted, so that the unified debugging can be performed when the video wall is spliced, and then the display parameters of each liquid crystal display device are correspondingly written, even during the use, the display effect between the liquid crystal display devices appears. The deviation can also be corrected by modifying the display parameters.
  • the display parameter includes one or two of a gamma value or a chromaticity value.
  • a gamma value you can adjust either or both of the brightness and the flicker in the LCD panel display effect; by adjusting the chromaticity value, you can adjust the chromaticity in the LCD panel display effect.
  • a liquid crystal display device comprising a liquid crystal panel, a driving circuit for controlling display of the liquid crystal panel, the driving circuit comprising an adjusting device storing display parameters; the adjusting device comprising an interface module connected to an external debugging device, the adjusting device
  • the display parameters are adjustable.
  • the display parameter includes one or two of a gamma value or a chromaticity value, and the adjustment is two.
  • the gamma value you can adjust any one or two of the brightness and flicker in the LCD panel display effect; by adjusting the chromaticity value, you can adjust the chromaticity in the LCD panel display effect.
  • the display parameter includes a gamma value and a chrominance value
  • the driving circuit includes a timing control chip for controlling display of the liquid crystal panel
  • the adjusting device further includes an gamma value adjustable respectively coupled to the interface module.
  • a programmable voltage buffer unit and a memory unit storing a chrominance value; an output of the memory unit coupled to a chrominance correction unit, the chrominance correction unit being integrated in the timing control chip; the timing control chip and programmable
  • the output signal of the voltage buffer unit is coupled to the liquid crystal panel; the external debugging device writes display parameters to the memory unit and the programmable voltage buffer unit through the interface module.
  • the display parameters in the adjustment device correspond to the display effects of the liquid crystal panel, that is, different display parameters correspond to different display effects, so that only the display of each liquid crystal display device is adjusted.
  • the parameters allow each LCD panel to display the same color, and the display effect remains the same, so that these liquid crystal display devices can be spliced as a video wall.
  • the invention does not require the liquid crystal display device of the same video wall to ensure a high degree of uniformity on the device, reduces the requirements on the device, and is advantageous for reducing the production cost; and in design, a universal optical sensing system is used to detect each liquid crystal panel.
  • the display effect is then based on the display effect of one of the liquid crystal display panels of the same video wall, and the display parameters of other liquid crystal display devices are adjusted by software adjustment, and the liquid crystal panel can achieve the reference display effect, without requiring each
  • the LCD panel performs a large number of hardware detection and debugging, and then selects the closest LCD splicing screen from all the liquid crystal display devices, which reduces the design difficulty and shortens the development cycle.
  • Figure 1 is a schematic view of a liquid crystal splicing screen
  • Figure 2 is a schematic view of the principle of the present invention
  • Figure 3 is a schematic view of the first embodiment of the present invention.
  • Figure 4 is a schematic view of the second embodiment of the present invention.
  • FIG. 5 is a schematic diagram of gamma correction according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic diagram of chromaticity correction according to Embodiment 2 of the present invention.
  • Figure 7 is a schematic view of the third embodiment of the present invention.
  • the invention discloses a liquid crystal splicing screen, and the liquid crystal splicing screen comprises a liquid crystal display device.
  • the liquid crystal display device includes a liquid crystal panel 1, a sequential circuit control board 2 for controlling the display of the liquid crystal panel 1, that is, the driving circuit of the present invention, and the sequential circuit control board 2 includes a connection with an external debugging device.
  • the adjusting device 3 for adjusting the display effect of the liquid crystal panel 1 includes an adjusting device 3 storing display parameters corresponding to the display effect of the liquid crystal panel 1; the display parameters of the adjusting device 3 are adjustable.
  • the liquid crystal splicing screen includes two or more liquid crystal display devices of the present invention, wherein the display parameters of the adjusting devices 3 of at least two liquid crystal display devices are different.
  • the display parameters in the adjustment device correspond to the display effects of the liquid crystal panel, that is, different display parameters correspond to different display effects, so that only the display of each liquid crystal display device is adjusted.
  • the parameters allow each LCD panel to display the same color, and the display effect remains the same, so that these liquid crystal display devices can be spliced as a video wall.
  • the invention does not require the liquid crystal display device of the same video wall to ensure a high degree of uniformity on the device, reduces the requirements on the device, and is advantageous for reducing the production cost; and in design, a universal optical sensing system is used to detect each liquid crystal panel.
  • the display effect is then based on the display effect of one of the liquid crystal display panels of the same video wall, and the display parameters of other liquid crystal display devices are adjusted by software adjustment, and the liquid crystal panel can achieve the reference display effect, without requiring each LCD panel for a large number of hardware inspections Measure, debug, and then select the closest LCD splicing screen from all the liquid crystal display devices, which reduces the design difficulty and shortens the development cycle.
  • the adjusting means includes a gamma correction unit 5 having an adjustable gamma value, and a chromaticity correcting unit 7 having an adjustable chromaticity value.
  • a gamma correction unit 5 having an adjustable gamma value
  • a chromaticity correcting unit 7 having an adjustable chromaticity value.
  • the sequential circuit control board 2 includes a timing control chip 9 for controlling the display of the liquid crystal panel 1, and the adjusting device further includes a gamma adjustable programmable voltage buffer unit 10 coupled to the interface module 4, respectively.
  • a storage unit 8 storing a chrominance value; the storage unit 8 transmits the chrominance value to the timing control chip 9; the gamma value of the liquid crystal display device is transmitted to the programmable voltage buffer unit 10; the timing control chip 9 and the programmable voltage
  • the output signal of the buffer unit 10 is coupled to the liquid crystal panel 1 through the flexible circuit board 11; the external debugging device writes display parameters to the memory unit 8 and the programmable voltage buffer unit 10 through the interface module 4, respectively.
  • the external debugging device may select an optical sensing system, and the sensing system includes a detector 13 and a control device 12, and the detector 13 can capture the display screen of the liquid crystal panel 1, and then transmit the screen data to the control device 12, and the control device 12 Comparing the display effect of the captured display screen with the reference effect, and then generating corresponding display parameters, the control device 12 writes the chromaticity value of the display parameter to the storage unit 8 of the sequential circuit control board 2, and writes the gamma value.
  • the programmed voltage buffer unit 10 is included.
  • the present invention also discloses a display correction method for a liquid crystal splicing screen.
  • the liquid crystal splicing screen includes at least two liquid crystal display devices, and the liquid crystal display device includes a liquid crystal panel, and controls a sequential circuit of the liquid crystal panel display.
  • Step A includes: capturing a display screen of one of the liquid crystal display devices by using a detector of the optical sensing system, and extracting a display effect of the display screen as a reference effect based on the entire display screen;
  • Step B includes: sequentially capturing the display effect of the display screen of the other liquid crystal display device through the detector of the optical sensing system;
  • Step C includes: the control system of the optical sensing system generates a corresponding display parameter by comparing the reference effect of the display effect of the display screen of the liquid crystal display device, and then writing the chromaticity value of the display parameter to the control circuit board of the sequential circuit
  • the memory unit writes the gamma value into the programmable voltage buffer unit.
  • the liquid crystal display device adjusts the output screen of the liquid crystal panel according to the stored display parameters, so that the display effect of the liquid crystal panel matches the reference effect.
  • the optical sensing system writes the debugged display parameters to the adjustment adjustment device via the interface module.
  • the display parameters can be adjusted, so that the unified debugging can be performed when the video wall is spliced together, and then the display parameters of each liquid crystal display device are correspondingly written, even if the display effect between the liquid crystal display devices is deviated during use, Correction is done by modifying the display parameters.
  • the display parameters of the present invention include one or both of gamma values and chromaticity values.
  • gamma value you can adjust either or both of the brightness and the flicker in the LCD panel display effect;
  • chromaticity value you can adjust the chromaticity in the LCD panel display effect.

Abstract

一种液晶拼接屏,包括多个液晶显示装置,所述液晶显示装置包括液晶面板(1),控制液晶面板(1)显示的驱动电路(2),所述驱动电路包括存储有显示参数的调节装置(3);所述多个液晶显示装置中至少有两个液晶显示装置的调节装置(3)的显示参数不同。

Description

一种液晶拼接屏及其校正方法和一种液晶显示装置
【技术领域】
本发明涉及液晶显示领域, 更具体的说, 涉及一种液晶拼接屏及其校正方 法和一种液晶显示装置。
【背景技术】
如图 1所示, 液晶拼接屏是利用两片以上的液晶显示装置拼接而成的, 若 这几个液晶显示装置的面板在相同颜色下所显示的亮度、 闪烁度或色度等显示 效果不同, 则观看者在面板相接的地方, 所看到的到的画面会不连续。 所以面 板厂在制作时, 必需选择相同亮度和色度的 LED灯来提供背光, 另外也要控制 面板在生产制程中的穏定度, 来减少片与片之间的差距, 如此的繁瑣, 除了增 加成本也提高设计上的困难。
【发明内容】
本发明所要解决的技术问题是提供一种降低设计难度和成本的液晶拼接屏 及其校正方法和一种液晶显示装置。
本发明的目的是通过以下技术方案来实现的:
一种液晶拼接屏, 包括多个液晶显示装置, 所述液晶显示装置包括液晶面 板, 控制液晶面板显示的驱动电路, 所述驱动电路包括存储有显示参数的调节 装置; 所述多个液晶显示装置中至少有两个液晶显示装置的调节装置的显示参 数不同。
进一步的, 所述调节装置包括与外部调试设备连接的接口模块, 所述调节 装置从所述接口模块中读取并存储所述显示参数。 本技术方案中显示参数可以 调节, 这样可以在拼接好电视墙的时候进行统一调试, 然后对应写入每个液晶 显示装置的显示参数, 即便在使用过程中, 液晶显示装置之间的显示效果出现 偏差, 也可以通过修改显示参数的方式进行校正。 进一步的, 所述显示参数包括伽马值和色度值, 所述驱动电路包括控制液 晶面板显示的时序控制芯片, 所述调节装置还包括分别与所述接口模块耦合的 伽马值可调的可编程的电压緩沖单元和存储有色度值的存储单元; 所述存储单 元的输出端耦合有色度校正单元, 所述色度校正单元集成在所述时序控制芯片; 所述时序控制芯片和可编程的电压緩沖单元的输出信号耦合到液晶面板。 此为 一种具体的驱动电路结构。
进一步的, 所述显示参数包括伽马值或色度值中的一种或两种, 所述调节 两种。 通过调节伽马值, 可以调整液晶面板显示效果中的亮度、 闪烁度中的任 意一个或两个; 通过调节色度值, 可以调整液晶面板显示效果中的色度。
一种液晶拼接屏的显示校正方法, 所述液晶拼接屏包括至少两个液晶显示 装置, 所述液晶显示装置包括液晶面板, 控制液晶面板显示的驱动电路, 所述 驱动电路包括存储有显示参数的调节装置; 所述调节装置包括与外部调试设备 连接的接口模块; 所述校正方法包括:
A、 通过光学感测系统捕捉其中一个液晶显示装置的显示画面, 并以整个液 晶显示装置的显示画面为基础, 提取该显示画面的显示效果作为基准效果;
B、 依次通过光学感测系统捕捉其他液晶显示装置显示画面的显示效果;
C、调整液晶显示装置的显示参数,使比较画面的显示效果跟基准效果一致。 进一步的, 所述步骤 C中: 所述光学感测系统通过所述接口模块将调试后 的显示参数写入所述调节调节装置。 本技术方案中显示参数可以调节, 这样可 以在拼接好电视墙的时候进行统一调试, 然后对应写入每个液晶显示装置的显 示参数, 即便在使用过程中, 液晶显示装置之间的显示效果出现偏差, 也可以 通过修改显示参数的方式进行校正。
进一步的, 所述显示参数包括伽马值或色度值中的一种或两种。 通过调节 伽马值, 可以调整液晶面板显示效果中的亮度、 闪烁度中的任意一个或两个; 通过调节色度值, 可以调整液晶面板显示效果中的色度。 一种液晶显示装置, 包括液晶面板, 控制液晶面板显示的驱动电路, 所述 驱动电路包括存储有显示参数的调节装置; 所述调节装置包括与外部调试设备 连接的接口模块, 所述调节装置的显示参数可调。
进一步的, 所述显示参数包括伽马值或色度值中的一种或两种, 所述调节 两种。 通过调节伽马值, 可以调整液晶面板显示效果中的亮度、 闪烁度中的任 意一个或两个; 通过调节色度值, 可以调整液晶面板显示效果中的色度。
进一步的, 所述显示参数包括伽马值和色度值, 所述驱动电路包括控制液 晶面板显示的时序控制芯片, 所述调节装置还包括分别与所述接口模块耦合的 伽马值可调的可编程的电压緩沖单元和存储有色度值的存储单元; 所述存储单 元的输出端耦合有色度校正单元, 所述色度校正单元集成在所述时序控制芯片; 所述时序控制芯片和可编程的电压緩沖单元的输出信号耦合到液晶面板; 所述 外部调试设备通过接口模块将显示参数分别写入存储单元和可编程的电压緩沖 单元。 此为一种具体的驱动电路结构。
本发明由于在液晶显示装置内设置了调节装置, 而调节装置里面的显示参 数跟液晶面板的显示效果相对应, 即不同的显示参数对应不同的显示效果, 这 样只要调整每个液晶显示装置的显示参数, 让每个液晶面板在显示相同颜色的 时候, 显示效果保持一致, 就能将这些液晶显示装置拼接作为电视墙使用。 本 发明不需要同一电视墙的液晶显示装置在器件上保证高度一致, 降低了器件方 面的要求, 有利于降低生产成本; 另外在设计上, 只要采用通用的光学感测系 统来检测每个液晶面板的显示效果, 然后以同一电视墙的其中一个液晶显示面 板的显示效果为基准, 采用软件调节的方式调节其他液晶显示装置的显示参数, 其液晶面板就能达到基准显示效果, 不需要对每个液晶面板进行大量的硬件检 测、 调试, 然后从所有液晶显示装置中挑选出各项硬件指标最接近的用于同一 液晶拼接屏, 降低了设计难度, 开发周期也更短。 【附图说明】
图 1是液晶拼接屏示意图;
图 2是本发明原理示意图;
图 3是本发明实施例一的示意图;
图 4是本发明实施例二示意图;
图 5是本发明实施例二的伽马校正示意图;
图 6是本发明实施例二的色度校正示意图;
图 7是本发明实施例三示意图。
【具体实施方式】
本发明公开了一种液晶拼接屏, 液晶拼接屏包括一种液晶显示装置。 如图 2 所示, 液晶显示装置包括液晶面板 1 , 控制液晶面板 1显示的时序电路控制板 2 (即本发明所述的驱动电路), 时序电路控制板 2包括可跟外部调试设备连接的 用于调节液晶面板 1显示效果的调节装置 3;调节装置 3包括存储有跟液晶面板 1显示效果对应的显示参数的调节装置 3; 调节装置 3的显示参数可调。
液晶拼接屏包括两个以上本发明的液晶显示装置, 其中至少两个液晶显示 装置的调节装置 3的显示参数不同。
本发明由于在液晶显示装置内设置了调节装置, 而调节装置里面的显示参 数跟液晶面板的显示效果相对应, 即不同的显示参数对应不同的显示效果, 这 样只要调整每个液晶显示装置的显示参数, 让每个液晶面板在显示相同颜色的 时候, 显示效果保持一致, 就能将这些液晶显示装置拼接作为电视墙使用。 本 发明不需要同一电视墙的液晶显示装置在器件上保证高度一致, 降低了器件方 面的要求, 有利于降低生产成本; 另外在设计上, 只要采用通用的光学感测系 统来检测每个液晶面板的显示效果, 然后以同一电视墙的其中一个液晶显示面 板的显示效果为基准, 采用软件调节的方式调节其他液晶显示装置的显示参数, 其液晶面板就能达到基准显示效果, 不需要对每个液晶面板进行大量的硬件检 测、 调试, 然后从所有液晶显示装置中挑选出各项硬件指标最接近的用于同一 液晶拼接屏, 降低了设计难度, 开发周期也更短。
下面结合附图和较佳的实施例对本发明作进一步说明。
实施例一
如图 3所示, 调节装置包括伽马值可调的伽马校正单元 5、 色度值可调的色 度校正单元 7。 通过调节液晶显示装置的伽马值, 可以调整液晶面板显示效果中 的亮度、 闪烁度中的任意一个或两个; 通过调节液晶显示装置的色度值, 可以 调整液晶面板显示效果中的色度。
实施例二
如图 4 ~ 6所示, 时序电路控制板 2包括控制液晶面板 1显示的时序控制芯 片 9、调节装置还包括分别与接口模块 4耦合的伽马值可调的可编程的电压緩沖 单元 10和存储有色度值的存储单元 8; 存储单元 8将色度值传送给时序控制芯 片 9; 将液晶显示装置的伽马值传送给可编程的电压緩沖单元 10; 时序控制芯 片 9和可编程的电压緩沖单元 10的输出信号通过柔性电路板 11耦合到液晶面 板 1 ;外部调试设备通过接口模块 4将显示参数分别写入存储单元 8和可编程的 电压緩沖单元 10。
外部的调试设备可以选用一套光学感测系统, 感测系统包括探测器 13和控 制装置 12, 探测器 13可以捕捉液晶面板 1的显示画面, 然后将画面数据传送到 控制装置 12, 控制装置 12将捕捉到的显示画面的显示效果跟基准效果比较, 然 后生成相应的显示参数, 控制装置 12将显示参数的色度值写入时序电路控制板 2的存储单元 8, 将伽马值写入可编程的电压緩沖单元 10中。
实施例三
如图 7所示, 本发明还公开了一种液晶拼接屏的显示校正方法, 所述液晶 拼接屏包括至少两个液晶显示装置, 所述液晶显示装置包括液晶面板, 控制液 晶面板显示的时序电路控制板, 所述时序电路控制板包括存储有显示参数的调 节装置; 所述调节装置包括与外部调试设备连接的接口模块; 所述校正方法包 括:
A、 通过光学感测系统捕捉其中一个液晶显示装置的显示画面, 并以整个显 示画面为基础, 提取该显示画面的显示效果作为液晶拼接屏的基准效果;
B、 依次通过光学感测系统捕捉其他液晶显示装置显示画面的显示效果;
C、调整液晶显示装置的显示参数,使比较画面的显示效果跟基准效果一致。 其中步骤 A包括: 通过光学感测系统的探测器捕捉其中一个液晶显示装置 的显示画面, 并以整个显示画面为基础, 提取该显示画面的显示效果作为基准 效果;
步骤 B 包括: 依次通过光学感测系统的探测器捕捉其他液晶显示装置显示 画面的显示效果;
步骤 C包括: 光学感测系统的控制系统通过比对该液晶显示装置显示画面 的显示效果的基准效果的区别, 生成相应的显示参数, 然后将显示参数的色度 值写入时序电路控制板的存储单元, 将伽马值写入可编程的电压緩沖单元中。 液晶显示装置根据存储的显示参数来调节液晶面板的输出画面, 使液晶面板的 显示效果跟基准效果一致。
光学感测系统通过所述接口模块将调试后的显示参数写入所述调节调节装 置。 显示参数可以调节, 这样可以在拼接好电视墙的时候进行统一调试, 然后 对应写入每个液晶显示装置的显示参数, 即便在使用过程中, 液晶显示装置之 间的显示效果出现偏差, 也可以通过修改显示参数的方式进行校正。
本发明的显示参数包括伽马值、 色度值中的一种或两种。 通过调节伽马值, 可以调整液晶面板显示效果中的亮度、 闪烁度中的任意一个或两个; 通过调节 色度值, 可以调整液晶面板显示效果中的色度。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明, 不 能认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通 技术人员来说, 在不脱离本发明构思的前提下, 还可以做出若干筒单推演或替 换, 都应当视为属于本发明的保护范围。

Claims

权利要求
1、 一种液晶拼接屏, 包括多个液晶显示装置,
所述液晶显示装置包括液晶面板, 控制液晶面板显示的驱动电路, 所述驱 动电路包括存储有显示参数的调节装置; 所述多个液晶显示装置中至少有两个 液晶显示装置的调节装置的显示参数不同。
2、 如权利要求 1所述的一种液晶拼接屏, 其中, 所述调节装置包括与外部 调试设备连接的接口模块, 所述调节装置从所述接口模块中读取并存储所述显 示参数。
3、 如权利要求 2所述的一种液晶拼接屏, 其中, 所述显示参数包括伽马值 和色度值。
4、 如权利要求 2所述的一种液晶拼接屏, 其中, 所述显示参数包括伽马值 和色度值, 所述驱动电路包括控制液晶面板显示的时序控制芯片, 所述调节装 置还包括分别与所述接口模块耦合的伽马值可调的可编程的电压緩沖单元和存 储有色度值的存储单元; 所述存储单元的输出端耦合有色度校正单元, 所述色 度校正单元集成在所述时序控制芯片; 所述时序控制芯片和可编程的电压緩沖 单元的输出信号耦合到液晶面板。
5、如权利要求 1所述的一种液晶拼接屏, 其中, 所述显示参数包括伽马值, 所述调节装置包括伽马值可调的伽马校正单元。
6、如权利要求 1所述的一种液晶拼接屏, 其中, 所述显示参数包括色度值, 所述调节装置包括色度值可调的色度校正单元。
7、 一种液晶拼接屏的显示校正方法, 所述液晶拼接屏包括至少两个液晶显 示装置, 所述液晶显示装置包括液晶面板, 控制液晶面板显示的驱动电路, 其 中, 所述驱动电路包括存储有显示参数的调节装置; 所述调节装置包括与外部 调试设备连接的接口模块; 所述校正方法包括:
A、 通过光学感测系统捕捉其中一个液晶显示装置的显示画面, 并以整个液 晶显示装置的显示画面为基础, 提取该显示画面的显示效果作为基准效果;
B、 依次通过光学感测系统捕捉其他液晶显示装置显示画面的显示效果;
C、调整液晶显示装置的显示参数,使比较画面的显示效果跟基准效果一致。
8、 如权利要求 7所述的一种液晶拼接屏的显示校正方法, 其中, 所述步骤 C中:所述光学感测系统通过所述接口模块将调试后的显示参数写入所述调节调 节装置。
9、 如权利要求 7所述的一种液晶拼接屏的显示校正方法, 其中, 所述显示 参数包括伽马值或色度值中的一种或两种。
10、 一种液晶显示装置, 包括液晶面板, 控制液晶面板显示的驱动电路, 所述驱动电路包括存储有显示参数的调节装置; 所述调节装置包括与外部 调试设备连接的接口模块, 所述调节装置的显示参数可调。
11、 如权利要求 10所述的一种液晶显示装置, 其中, 所述显示参数包括伽 马值, 所述调节装置包括伽马值可调的伽马校正单元。
12、 如权利要求 10所述的一种液晶显示装置, 其中, 所述显示参数包括色 度值, 所述调节装置包括色度值可调的色度校正单元。
13、 如权利要求 10所述的一种液晶显示装置, 其中, 所述显示参数包括伽 马值和色度值, 所述驱动电路包括控制液晶面板显示的时序控制芯片, 所述调 节装置还包括分别与所述接口模块耦合的伽马值可调的可编程的电压緩沖单元 和存储有色度值的存储单元; 所述存储单元的输出端耦合有色度校正单元, 所 述色度校正单元集成在所述时序控制芯片; 所述时序控制芯片和可编程的电压 緩沖单元的输出信号耦合到液晶面板; 所述外部调试设备通过接口模块将显示 参数分别写入存储单元和可编程的电压緩沖单元。
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