WO2014079031A1 - 一种显示闪烁样式和调整共电压的方法及液晶显示模组 - Google Patents
一种显示闪烁样式和调整共电压的方法及液晶显示模组 Download PDFInfo
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- WO2014079031A1 WO2014079031A1 PCT/CN2012/085121 CN2012085121W WO2014079031A1 WO 2014079031 A1 WO2014079031 A1 WO 2014079031A1 CN 2012085121 W CN2012085121 W CN 2012085121W WO 2014079031 A1 WO2014079031 A1 WO 2014079031A1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control 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
- G09G3/34—Control 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
- G09G3/36—Control 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
Definitions
- the present invention relates to the field of liquid crystal display, and more particularly to a method for displaying a flicker pattern of a liquid crystal display module, a method for adjusting a common voltage using a flicker pattern, and a liquid crystal display module.
- the liquid crystal display requires an AC drive, its voltage has a positive polarity and a negative polarity. Theoretically, the amplitudes of the positive polarity and the negative polarity need to be equal. In reality, the characteristics of each panel are different, and there are some errors in the manufacturing process. Therefore, the common voltage offset causes the panel display quality to be poor. In order to correct such a common voltage offset, an additional step of common voltage adjustment is required in the process. For example, assuming that the positive polarity voltage is 10 volts, the common voltage is 5 volts. However, in practice, the positive voltage may be affected by many external factors and become 9 volts. At this time, the common voltage needs to be adjusted to 4.5 volts. Therefore, the test by the flicker pattern can assist the technician to adjust the optimum common voltage potential of the panel.
- an external power supply is required to illuminate the liquid crystal display panel and the backlight module, and a pattern generator is used to provide a blinking pattern, and the pattern generator is a kind.
- Professional signal generators high cost, and because different types of liquid crystal display modules are used to adjust the common-mode flashing pattern, so testers need to choose the appropriate flicker style. Because of the large number of flicker patterns, testers are It is inefficient and easy to make mistakes.
- the technical problem to be solved by the present invention is to provide a method for displaying a flicker pattern of a liquid crystal display module, a method for adjusting a common voltage by using a flicker pattern, and a liquid crystal display module, wherein the display flicker of the liquid crystal display module is set in a timing controller Inside, there is no need to use a style generator to provide a flicker style, which saves the cost of the style generator.
- the technical solution of the present invention is: a method for displaying a blinking pattern by a liquid crystal display module, Adding a flicker pattern for adjusting the common voltage in the timing controller;
- the liquid crystal display module displays the blinking pattern.
- the blinking pattern is set to enter a default screen of the free running mode, and the blinking pattern is displayed when the liquid crystal display module enters the free running mode.
- the BIST (built-in self test) test pin of the timing controller is grounded to bring the liquid crystal display module into a free running mode, and the blinking pattern is displayed.
- a method for adjusting a common voltage by using a flicker pattern comprising the steps of:
- a flicker pattern for adjusting the common voltage is added to the timing controller
- the blinking pattern is set to enter a default screen of the free running mode, and the liquid crystal display module is brought into a free running mode to display the blinking pattern.
- the BIST test pin of the timing controller is grounded to bring the liquid crystal display module into a free running mode, and the blinking pattern is displayed.
- the BIST test pin of the timing controller is connected to a DIP switch, and the DIP switch is respectively connected to the high level and the ground.
- the DIP switch is turned to the ground, the liquid crystal display module enters the free running mode, and the display Blinking mode;
- the DIP switch is set to high level, the LCD module is in the normal detection mode.
- a liquid crystal display module comprising a timing controller, wherein the timing controller is provided with a blinking pattern for adjusting a common voltage.
- the blinking pattern is a default screen of the free running mode. .
- the beneficial effects of the present invention are as follows:
- the liquid crystal display module of the present invention mainly utilizes the existing structure and technology, and does not have much modification to the hardware, but only adds a flicker for adjusting the common voltage in the timing controller (T-CON). Style, because there are already multiple styles for the aging test in the timing controller, adding a flicker style will basically not increase the cost; then setting a trigger condition for the flicker style, When the trigger condition is reached, the liquid crystal display module displays the blinking pattern, and then the common pattern generator can be used to reduce the number of production line fixtures; and since the blinking pattern is provided by the timing controller, it automatically appears. No need to pick, so there is no mistake.
- FIG. 1 is a schematic diagram showing a flashing pattern of a liquid crystal display module in the prior art
- FIG. 2 is a schematic diagram showing a flicker pattern of an embodiment of the liquid crystal display module of the present invention.
- the present invention discloses a method for displaying a flicker pattern by a liquid crystal display module. As an embodiment of the method, as shown in FIG. 2, the following features are included:
- the liquid crystal display module displays the blinking pattern.
- the method for displaying the flicker pattern of the liquid crystal display module of the present invention mainly utilizes the existing structure and technology, and does not have much modification to the hardware, but only adds a flicker pattern for adjusting the common voltage in the timing controller, because the timing control
- the flashing pattern is displayed, and then the common voltage generator can be used to reduce the number of production line fixtures; and since the blinking pattern is self-contained by the timing controller, it automatically appears and does not have to be selected, so there is no error.
- the blinking pattern is set to enter a default screen of the free running mode, and when the liquid crystal display module enters the free running mode, a blinking pattern is displayed, and the triggering condition is to enable the liquid crystal display module to enter a free running mode. conditions of.
- the liquid crystal display module of the present invention comprises a timing controller, and the timing controller is provided with a flicker pattern for adjusting the common voltage, and when the trigger condition is reached, the flicker pattern is displayed.
- the blinking pattern is set to a default screen of the free running mode, and the blinking pattern is displayed when the liquid crystal display module enters a free running mode.
- the timing controller when the timing controller is in an abnormal state, for example, the timing controller enters when "BIST (built-in self test) disenable” and "no LVDS (Low-Voltage Differential Signaling) Clock” or "Data Enable Signal” In the free run mode (free run mode), the black screen is displayed. Since the default value of the timing controller BIST test pin is VDD (high level), if the timing controller BIST test pin is set to GND (ground), it will be considered.
- VDD high level
- the timing controller is in an abnormal state, that is, enters the free running mode, and displays the default screen; the present invention uses the blinking pattern instead of the black screen, that is, when entering the free running mode, the screen is displayed as a blinking pattern, and then the common voltage can be optimized. So, you don't have to use the traditional flashing style display method, you don't have to set the style generator; and because the flashing style is built-in by the timing controller, it automatically appears, you don't have to pick it, so it won't go wrong, the method of displaying the flashing style is simple. , easy to implement, and efficient.
- the invention also discloses a method for adjusting the common voltage by using the flicker pattern.
- the liquid crystal display module is triggered to display the flicker pattern by the method described above, the optimal chemical of the common voltage can be performed.
- the BIST (built-in self test) test pin of the timing controller is connected to a DIP switch, and the DIP switch is connected to VDD (high level) and GND (ground) respectively.
- VDD high level
- GND ground
- the LCD module enters the free running mode and displays the flashing mode.
- the DIP switch is set to VDD (high level)
- the LCD module is in the normal detection mode. Since the adjustment of the common voltage is only a station on the production line of the liquid crystal module, only the station needs to make the timing controller enter an abnormal state. Therefore, after the station is completed, the dial switch should be turned to VDD to make the timing control. The device returns to a normal state, so as not to affect the subsequent stations.
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
一种液晶显示模组显示闪烁样式的方法、利用闪烁样式进行调整共电压的方法和液晶显示模组，在时序控制器（T-CON）内增设一张用于调整共电压的闪烁样式；为所述闪烁样式设置一个触发条件；在达到所述触发条件时，液晶显示模组显示所述闪烁样式。
Description
一种显示闪烁样式和调整共电压的方法及液晶显示模组
【技术领域】
本发明属于液晶显示领域， 更具体的说， 涉及一种液晶显示模组显示闪烁 样式的方法、 利用闪烁样式进行调整共电压的方法和液晶显示模组。
【背景技术】
由于液晶显示器需要交流驱动， 所以其电压有正极性与负极性。 理论上， 正极性与负极性的振幅需要相等。 现实上， 原本每一块面板的特性不一， 且在 制造过程也会产生一些误差。 因此会造成共电压偏移导致面板显示品质不佳。 为了修正这样的共电压偏移， 在工艺过程需要额外进行共电压调整的步骤。 举 例来说， 假设正极性电压是 10伏特， 则共电压是 5伏特。 然而， 实务上， 正极 性电压可能受许多外在因素影响而变成是 9伏特， 此时， 共电压需调整到 4.5伏 特。 因此， 借由闪烁样式（flicker pattern )的测试可以辅助技术人员调整面板的 最佳的共电压电位。
如图 1所示， 为了使液晶显示模组显示闪烁样式， 需要外加电源以点亮液 晶显示面板和背光模组，还要使用样式生成器（ pattern generator )提供闪烁样式， 样式生成器是一种专业的信号发生器， 成本高， 另外由于不同类型的液晶显示 模组用于调整共电压的闪烁样式也不同， 所以需要测试人员挑选合适的闪烁样 式， 由于闪烁样式的数量庞大， 因此测试人员在挑选时效率低， 而且容易出错。
【发明内容】
本发明所要解决的技术问题是提供一种液晶显示模组显示闪烁样式的方 法、 利用闪烁样式进行调整共电压的方法和液晶显示模组， 所述液晶显示模组 的显示闪烁设置在时序控制器内， 不需要采用样式生成器提供闪烁样式， 从而 节省了样式生成器的成本。
本发明的技术方案为： 一种液晶显示模组显示闪烁样式的方法，
在时序控制器内增设一张用于调整共电压的闪烁样式；
为所述闪烁样式设置一个触发条件；
在达到所述触发条件时， 液晶显示模组显示所述闪烁样式。
优选的， 将所述闪烁样式设置为进入自由运行模式的默认画面， 当液晶显 示模组进入自由运行模式时， 显示闪烁样式。
优选的， 将时序控制器的 BIST ( built-in self test )测试脚接地， 使液晶显示 模组进入自由运行模式， 显示所述闪烁样式。
本发明的另一种技术方案为： 一种利用闪烁样式进行调整共电压的方法， 包括步骤：
在时序控制器内增设有一张用于调整共电压的闪烁样式；
使液晶显示模组触发显示所述闪烁样式；
进行共电压的最优化工作。
优选的， 将所述闪烁样式设置为进入自由运行模式的默认画面， 使液晶显 示模组进入自由运行模式， 从而显示所述闪烁样式。
优选的， 将时序控制器的 BIST测试脚接地， 使液晶显示模组进入自由运行 模式， 显示所述闪烁样式。
优选的， 时序控制器的 BIST测试脚与一拨码开关连接， 所述拨码开关分别 与高电平和地相连接， 当拨码开关拨至地时， 液晶显示模组进入自由运行模式， 显示闪烁样式； 当拨码开关拨至高电平时， 液晶显示模组处于正常检测模式。
本发明的另一种技术方案为： 一种液晶显示模组， 包括时序控制器， 所述 时序控制器内设有一张用于调整共电压的闪烁样式。
优选的， 所述闪烁样式为自由运行模式的默认画面。。
本发明的有益效果为： 本发明液晶显示模组主要是利用现有结构及技术， 对硬件没有太多改动， 只是在时序控制器（T-CON ) 内增设一张用于调整共电 压的闪烁样式， 因为时序控制器里本来就有多张用于老化测试用的样式， 增加 一张闪烁样式基本上不会增加成本； 然后为所述闪烁样式设置一个触发条件，
在达到所述触发条件时， 液晶显示模组显示所述闪烁样式， 然后就可以进行共 样式生成器， 降低了产线治具数量； 而且由于闪烁样式是时序控制器自带的， 自动出现， 不必挑选， 所以不会出错。
【附图说明】
图 1是现有技术中液晶显示模组显示闪烁样式的原理图；
图 2是本发明所述液晶显示模组实施例显示闪烁样式的原理图。
【具体实施方式】
本发明公开一种液晶显示模组显示闪烁样式的方法， 作为所述方法的实施 例， 如图 2所示， 包括以下特征：
在时序控制器内增设一张用于调整共电压的闪烁样式；
为所述闪烁样式设置一个触发条件；
在达到所述触发条件时， 液晶显示模组显示所述闪烁样式。
本发明所述液晶显示模组显示闪烁样式的方法主要是利用现有结构及技 术， 对硬件没有太多改动， 只是在时序控制器内增设一张用于调整共电压的闪 烁样式， 因为时序控制器里本来就有多张用于老化测试用的样式， 增加一张闪 烁样式基本上不会增加成本； 然后为所述闪烁样式设置一个触发条件， 在达到 所述触发条件时， 液晶显示模组显示所述闪烁样式， 然后就可以进行共电压的 成器， 降低了产线治具数量； 而且由于闪烁样式是时序控制器自带的， 自动出 现， 不必挑选， 所以不会出错。
在本实施例中， 将所述闪烁样式设置为进入自由运行模式的默认画面， 当 液晶显示模组进入自由运行模式时， 显示闪烁样式， 所述触发条件为使液晶显 示模组进入自由运行模式的条件。
本发明所述液晶显示模组包括时序控制器 , 所述时序控制器内设有一张用 于调整共电压的闪烁样式， 当达到触发条件， 就显示所述闪烁样式。 在上述的 方法中， 所述闪烁样式被设置为自由运行模式的默认画面， 当液晶显示模组进 入自由运行模式， 从而显示所述闪烁样式。
现有技术中当时序控制器处于异常时， 比如时序控制器在 "BIST ( built-in self test ) disenable" 及 "无 LVDS ( Low- Voltage Differential Signaling ) Clock" 或 "Data Enable Signal" 时会进入自由运行模式（ free run mode ), 此时显示黑画 面， 由于时序控制器 BIST测试脚默认情况为 VDD (高电平），如果把时序控制 器 BIST测试脚设置接 GND (地 ), 就会认为时序控制器处于异常状态， 即进入 自由运行模式， 显示默认画面； 本发明利用闪烁样式来代替黑画面， 即进入自 由运行模式时， 画面显示为闪烁样式， 然后就可以进行共电压的最优化工作了， 这样就不必再采用传统的闪烁样式显示方法， 不必设置样式生成器； 而且由于 闪烁样式是时序控制器自带的， 自动出现， 不必挑选， 所以不会出错， 显示闪 烁样式的方法筒单， 容易实现， 而且效率高。
本发明还公开了一种利用闪烁样式进行调整共电压的方法， 当采用上面所 述的方法使液晶显示模组触发显示闪烁样式时， 就可以进行共电压的最优化工 作了。
在本实施例中， 时序控制器的 BIST ( built-in self test )测试脚与一拨码开 关连接， 所述拨码开关分别与 VDD (高电平）和 GND (地）相连接， 当拨码开 关拨至 GND (地） 时， 液晶显示模组进入自由运行模式， 显示闪烁样式； 当拨 码开关拨至 VDD (高电平） 时， 液晶显示模组处于正常检测模式。 由于调整共 电压只是液晶模组生产线上的一个工站， 只有该工站才需要让时序控制器进入 异常状态， 所以在该工站完成后， 还应该把拨码开关拨至 VDD, 使时序控制器 恢复正常状态， 以免影响后序的工站。
当然， 让液晶显示模组进入自由运行模式还有其它的方法， 比如使时序控 制器进入 "BIST disenable" 及 "无 LVDS ( Low- Voltage Differential Signaling )
Clock" 或 "Data Enable Signal" 状态。
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
1、 一种液晶显示模组显示闪烁样式的方法， 包括步骤：
在时序控制器内增设一张用于调整共电压的闪烁样式；
为所述闪烁样式设置一个触发条件；
在达到所述触发条件时， 液晶显示模组显示所述闪烁样式。
2、 根据权利要求 1所述液晶显示模组显示闪烁样式的方法， 其中， 将所述 闪烁样式设置为进入自由运行模式的默认画面， 当液晶显示模组进入自由运行 模式时， 显示闪烁样式。
3、 根据权利要求 2所述液晶显示模组显示闪烁样式的方法， 其中， 将时序 控制器的 BIST测试脚接地， 使液晶显示模组进入自由运行模式， 显示所述闪烁 样式。
4、 一种利用闪烁样式进行调整共电压的方法， 包括步骤：
在时序控制器内增设有一张用于调整共电压的闪烁样式；
使液晶显示模组触发显示所述闪烁样式；
进行共电压的最优化工作。
5、 根据权利要求 4所述利用闪烁样式进行调整共电压的方法， 其中， 将所 述闪烁样式设置为进入自由运行模式的默认画面， 使液晶显示模组进入自由运 行模式， 从而显示所述闪烁样式。
6、 根据权利要求 5所述利用闪烁样式进行调整共电压的方法， 其中， 将时 序控制器的 BIST测试脚接地， 使液晶显示模组进入自由运行模式， 显示所述闪 烁样式。
7、 根据权利要求 6所述利用闪烁样式进行调整共电压的方法， 其中， 时序 控制器的 BIST测试脚与一拨码开关连接，所述拨码开关分别与高电平和地相连 接， 当拨码开关拨至地时， 液晶显示模组进入自由运行模式， 显示闪烁样式； 当拨码开关拨至高电平时， 液晶显示模组处于正常检测模式。
8、 一种液晶显示模组， 包括时序控制器， 所述时序控制器内设有一张用于 调整共电压的闪烁样式。
9、 根据权利要求 8所述的液晶显示模组， 其中， 所述闪烁样式为自由运行 模式的默认画面。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/807,152 US20140139504A1 (en) | 2012-11-22 | 2012-11-23 | Method for displaying flicker pattern, method for adjusting common voltage, and lcd module |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478516.8 | 2012-11-22 | ||
| CN2012104785168A CN103021355A (zh) | 2012-11-22 | 2012-11-22 | 一种显示闪烁样式和调整共电压的方法及液晶显示模组 |
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| CN105448221A (zh) * | 2015-12-29 | 2016-03-30 | 上海中航光电子有限公司 | 显示装置及其测试方法 |
| CN107340415B (zh) * | 2017-07-07 | 2020-02-14 | 京东方科技集团股份有限公司 | 一种信号补偿器及其信号补偿方法、信号补偿系统 |
| CN109599048A (zh) * | 2019-01-09 | 2019-04-09 | 惠科股份有限公司 | 一种显示装置及其驱动方法和显示器 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002149123A (ja) * | 2000-11-09 | 2002-05-24 | Denso Corp | 液晶表示装置及びそのフリッカ調整方法 |
| KR20020039898A (ko) * | 2000-11-22 | 2002-05-30 | 윤종용 | 멀티 프레임 반전 기능을 갖는 액정 표시 장치와 이의구동 장치 및 방법 |
| CN101000752A (zh) * | 2006-01-10 | 2007-07-18 | Nec液晶技术株式会社 | 用于液晶显示装置的闪烁控制系统 |
| TW201202517A (en) * | 2010-07-02 | 2012-01-16 | Univ Nat Taiwan | Self-centering energy dissipatiing support apparatus with double deformation capacity |
| CN102479478A (zh) * | 2010-11-24 | 2012-05-30 | 奇美电子股份有限公司 | 具有闪烁样式的装置及其操作方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315503B (zh) * | 2007-06-01 | 2010-05-26 | 群康科技(深圳)有限公司 | 液晶显示装置及其驱动方法 |
| JP4962421B2 (ja) * | 2008-06-13 | 2012-06-27 | 船井電機株式会社 | 液晶表示装置 |
| CN102063877B (zh) * | 2009-11-12 | 2013-01-02 | 群康科技(深圳)有限公司 | 液晶显示器及其检测方法 |
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- 2012-11-22 CN CN2012104785168A patent/CN103021355A/zh active Pending
- 2012-11-23 WO PCT/CN2012/085121 patent/WO2014079031A1/zh not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002149123A (ja) * | 2000-11-09 | 2002-05-24 | Denso Corp | 液晶表示装置及びそのフリッカ調整方法 |
| KR20020039898A (ko) * | 2000-11-22 | 2002-05-30 | 윤종용 | 멀티 프레임 반전 기능을 갖는 액정 표시 장치와 이의구동 장치 및 방법 |
| CN101000752A (zh) * | 2006-01-10 | 2007-07-18 | Nec液晶技术株式会社 | 用于液晶显示装置的闪烁控制系统 |
| TW201202517A (en) * | 2010-07-02 | 2012-01-16 | Univ Nat Taiwan | Self-centering energy dissipatiing support apparatus with double deformation capacity |
| CN102479478A (zh) * | 2010-11-24 | 2012-05-30 | 奇美电子股份有限公司 | 具有闪烁样式的装置及其操作方法 |
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