-
公开(公告)号：US09304340B2
公开(公告)日：2016-04-05
申请号：US14234625
申请日：2013-11-22
Inventor： Ye Dai , Chih-Tsung Kang
CPC classification number: G02F1/1309 , G09G3/36 , G09G2320/0247 , G09G2320/0693 , G09G2360/145 , G09G2360/16 , H04N5/3355 , H04N5/378
Abstract: A method for measuring flicker value of a liquid crystal module and related device are proposed. The method includes: providing flicker images to a liquid crystal module; applying a measure unit to scan the liquid crystal module to convert luminance of the liquid crystal into voltage signals to obtain analog luminance signals of the liquid crystal module; receiving the analog luminance signals from the measure unit and converting the analog luminance signals of the measure unit into digital luminance signals; performing Fourier transformation of the digital luminance signals to obtain magnitude of specific frequency wave; obtaining flicker value of the liquid crystal module through the magnitude of specific frequency wave. By using the present invention, the common voltage signal applied on the liquid crystal module is adjusted based on the flicker value of the liquid crystal module measured in real time. Therefore quality of liquid crystal module products is raised.
-
2.发明授权Driving circuit of LCD panel, LCD device, and method for driving the liquid crystal panel 有权液晶面板驱动电路，液晶显示装置及驱动液晶面板的方法公开(公告)号：US09041750B2
公开(公告)日：2015-05-26
申请号：US14113215
申请日：2013-06-28
Inventor： Ye Dai , Chih tsung Kang
IPC: G09G3/36
CPC classification number: G09G3/3611 , G09G2320/0252 , G09G2320/0285 , G09G2340/16 , G09G2360/16
Abstract: A method for driving a liquid crystal display (LCD) panel includes: A: setting an M*M over drive (OD) table, the M*M OD table includes a grey scale value XN*a of a previous-frame image, a grey scale value XN*b of a current-frame image, and an OD value (XN*a, XN*b) corresponding to the grey scale value XN*a and the grey scale value XN*b, where a and bε[0, M], N and M are integers, and N>=2. B: regarding x′ as the grey scale value of the previous-frame image and y′ as the grey scale value of the current-frame image when the LCD panel is driven, the OD value (x′, y′) is fitted to a continuous two-dimensional surface by reference to an OD value (XN*a, XN*b) in the OD table, and the OD value (x′, y′) is correspondingly calculated according to function of the two-dimensional surface fitted and is output to the LCD panel.
Abstract translation: 一种用于驱动液晶显示（LCD）面板的方法包括：A：设置M * M超过驱动（OD）表，M * M OD表包括前一帧图像的灰度值XN * a， 当前帧图像的灰度值XN * b和与灰度值XN * a和灰度值XN * b相对应的OD值（XN * a，XN * b），其中a和b' 0，M]，N和M是整数，N> = 2。 B：关于作为前一帧图像的灰度值的x'和当驱动LCD面板时的当前帧图像的灰度值的y'，将OD值（x'，y'）拟合到 通过参照OD表中的OD值（XN * a，XN * b）和OD值（x'，y'），根据二维表面拟合的功能相应地计算连续的二维表面 并输出到LCD面板。
-
3.发明申请DRIVING CIRCUIT OF LCD PANEL, LCD DEVICE, AND METHOD FOR DRIVING THE LIQUID CRYSTAL PANEL 有权LCD面板驱动电路，液晶显示装置及驱动液晶面板的方法公开(公告)号：US20140300650A1
公开(公告)日：2014-10-09
申请号：US14113215
申请日：2013-06-28
Inventor： Ye Dai , Chih tsung Kang
IPC: G09G3/36
CPC classification number: G09G3/3611 , G09G2320/0252 , G09G2320/0285 , G09G2340/16 , G09G2360/16
Abstract: A method for driving a liquid crystal display (LCD) panel includes: A: setting an M*M over drive (OD) table, the M*M OD table includes a grey scale value XN*a of a previous-frame image, a grey scale value XN*b of a current-frame image, and an OD value (XN*a, XN*b) corresponding to the grey scale value XN*a and the grey scale value XN*b, where a and bε[0, M], N and M are integers, and N>=2. B: regarding x′ as the grey scale value of the previous-frame image and y′ as the grey scale value of the current-frame image when the LCD panel is driven, the OD value (x′, y′) is fitted to a continuous two-dimensional surface by reference to an OD value (XN*a, XN*b) in the OD table, and the OD value (x′, y′) is correspondingly calculated according to function of the two-dimensional surface fitted and is output to the LCD panel.
Abstract translation: 一种用于驱动液晶显示（LCD）面板的方法包括：A：设置M * M超过驱动（OD）表，M * M OD表包括前一帧图像的灰度值XN * a， 当前帧图像的灰度值XN * b和与灰度值XN * a和灰度值XN * b相对应的OD值（XN * a，XN * b），其中a和b' 0，M]，N和M是整数，N> = 2。 B：关于作为前一帧图像的灰度值的x'和当驱动LCD面板时的当前帧图像的灰度值的y'，将OD值（x'，y'）拟合到 通过参照OD表中的OD值（XN * a，XN * b）和OD值（x'，y'），根据二维表面拟合的功能相应地计算连续的二维表面 并输出到LCD面板。
-
Patent Agency Ranking
公开(公告)号：US09305502B2
公开(公告)日：2016-04-05
申请号：US14233158
申请日：2013-11-13
Inventor： Dongsheng Guo , Ye Dai
IPC: G09G3/36
CPC classification number: G09G3/3614 , G09G3/3611 , G09G3/3648 , G09G2310/08 , G09G2320/0673
Abstract: Disclosed is an adjusting method of a gamma voltage adjusting device. The gamma voltage adjusting device is utilized for providing a liquid crystal panel with N gray levels and includes a printed circuit board assembly and a gamma voltage fine-tuning unit. The adjusting method of the gamma voltage adjusting device includes: generating N+2 gamma voltages with the printed circuit board assembly; inputting the N+2 gamma voltages to the gamma voltage fine-tuning unit; and generating negative polarity driving voltages and positive polarity driving voltages which are symmetrical according to the N+2 gamma voltages. The present invention decreases a number of gamma integrated circuits on the printed circuit board assembly for saving cost by decreasing the 2N gamma voltages in the prior arts to the N+2 gamma voltages.
Abstract translation: 公开了一种伽马电压调节装置的调整方法。 γ电压调节装置用于提供具有N个灰度级的液晶面板，并且包括印刷电路板组件和伽马电压微调单元。 伽马电压调整装置的调整方法包括：利用印刷电路板组件产生N + 2伽马电压; 向伽马电压微调单元输入N + 2伽玛电压; 并产生根据N + 2伽马电压对称的负极驱动电压和正极驱动电压。 本发明通过将现有技术中的2N伽马电压降低到N + 2伽马电压来减少印刷电路板组件上的多个伽马集成电路，从而节省成本。
-
5.发明授权Method and system for measuring the response time of a liquid crystal display 有权用于测量液晶显示器响应时间的方法和系统公开(公告)号：US09269287B2
公开(公告)日：2016-02-23
申请号：US14007975
申请日：2013-06-27
Inventor： Ye Dai , Chi-Tsung Kang
CPC classification number: G09G3/006 , G09G3/3611 , G09G2320/0252 , G09G2360/145
Abstract: A method and system for measuring the response time of an LCD are provided. The method comprises the following steps: step A: controlling the LCD to display a preset image; step B: obtaining the luminance of the LCD that is displaying the preset image, and outputting a luminance-time curve in which the luminance changes over the time; step C: correcting the luminance-time curve to obtain a corrected luminance-time curve, and calculating the response time of the LCD according to the corrected luminance-time curve. When implementing the present application, the measuring errors about the response time of the system for measuring the response time, which are resulted from using different actual luminance measuring devices, can be reduced or eliminated.
Abstract translation: 提供了用于测量LCD的响应时间的方法和系统。 该方法包括以下步骤：步骤A：控制LCD显示预置图像; 步骤B：获得正在显示预设图像的LCD的亮度，并输出亮度随时间变化的亮度 - 时间曲线; 步骤C：校正亮度 - 时间曲线以获得校正的亮度 - 时间曲线，并且根据修正的亮度 - 时间曲线计算LCD的响应时间。 在实施本申请时，可以减少或消除由使用不同的实际亮度测量装置产生的用于测量响应时间的系统的响应时间的测量误差。
-
公开(公告)号：US09311866B2
公开(公告)日：2016-04-12
申请号：US13822293
申请日：2013-01-11
Inventor： Ye Dai
IPC: G09G3/36
CPC classification number: G09G3/3607 , G09G3/3614 , G09G3/3685 , G09G2310/027 , G09G2320/0242 , G09G2320/0285 , G09G2340/0435
Abstract: The present invention provides a method for selecting FRC pattern, which includes (1) providing a display device, which includes a display panel, a signal controller including a look-up table and a data processor, and a data driver; (2) the display panel displaying an image and the signal controller supplying and expanding polarity distribution charts of two adjacent frames of the image; (3) establishing matrixes A, B corresponding to the frames; (4) the data processor retrieving and expanding one FRC pattern from the look-up table into matrixes C, D; (5) the data processor making operation on matrixes A, B, C and D to obtain a two-dimensional chart; and (6) determining if bright/dark strips occur according to the two-dimensional chart, whereby if the strips occur, then repeat steps (4)-(6) and if no such strips occur, then the FRC pattern is kept for subsequent use.
Abstract translation: 本发明提供了一种选择FRC图案的方法，其包括（1）提供一种显示装置，包括显示面板，包括查找表和数据处理器的信号控制器以及数据驱动器; （2）显示图像的显示面板和提供并扩展图像的两个相邻帧的极性分布图的信号控制器; （3）建立对应于帧的矩阵A，B; （4）数据处理器从查找表中检索和扩展一个FRC模式为矩阵C，D; （5）数据处理器对矩阵A，B，C和D进行操作以获得二维图; 和（6）根据二维图确定是否出现亮/暗条，从而如果条出现，则重复步骤（4） - （6），并且如果不出现这样的条，则保留FRC图案用于随后 使用。
-
公开(公告)号：US08993953B2
公开(公告)日：2015-03-31
申请号：US13811284
申请日：2013-01-14
Inventor： Ye Dai , Chih-tsung Kang
CPC classification number: G02F1/1309
Abstract: An apparatus and a system for measuring flicker of a display panel are disclosed. The apparatus comprises a light guide tube, a measuring probe for flicker measurement, and an optical device for diverging fight. The light guide tube comprises an opening at a first end and an opening at a second end. The trumpet-shaped light guide tube gradually enlarges from the opening at the second end to the opening at the first end. The opening at the first end is used for receiving light emitting from the periphery regions and the center region of the display. Light entering into the light guide tube through the opening at the first end emerges from the opening at the second end and is transmitted to the measuring probe through the optical device having a diverging effect. The more overall flicker information is acquired to improve the accuracy of measurement.
Abstract translation: 公开了一种用于测量显示面板的闪烁的装置和系统。 该装置包括导光管，用于闪烁测量的测量探针和用于发散的光的光学装置。 导光管包括在第一端的开口和在第二端的开口。 喇叭形导光管从第二端的开口到第一端的开口逐渐扩大。 第一端的开口用于接收从显示器的周边区域和中心区域发射的光。 通过第一端的开口进入导光管的光从第二端的开口出来，并通过具有发散效应的光学装置传送到测量探针。 获得更全面的闪烁信息以提高测量的准确性。
-
公开(公告)号：US20140191118A1
公开(公告)日：2014-07-10
申请号：US13811284
申请日：2013-01-14
Inventor： Ye Dai , Chih-tsung KANG
IPC: G01J1/04
CPC classification number: G02F1/1309
Abstract: An apparatus and a system for measuring flicker of a display panel are disclosed. The apparatus comprises a light guide tube, a measuring probe for flicker measurement, and an optical device for diverging fight. The light guide tube comprises an opening at a first end and an opening at a second end. The trumpet-shaped light guide tube gradually enlarges from the opening at the second end to the opening at the first end. The opening at the first end is used fir receiving light emitting from the periphery regions and the center region of the display. Light entering into the light guide tube through the opening at the first end emerges from the opening at the second end and is transmitted to the measuring probe through the optical device having a diverging effect. The more overall flicker information is acquired to improve the accuracy of measurement.
Abstract translation: 公开了一种用于测量显示面板的闪烁的装置和系统。 该装置包括导光管，用于闪烁测量的测量探针和用于发散的光的光学装置。 导光管包括在第一端的开口和在第二端的开口。 喇叭形导光管从第二端的开口到第一端的开口逐渐扩大。 第一端的开口用于接收从显示器的周边区域和中心区域发射的光。 通过第一端的开口进入导光管的光从第二端的开口出来，并通过具有发散效应的光学装置传送到测量探针。 获得更全面的闪烁信息以提高测量的准确性。
-
-
-
-
-
-
-
Search Results
8
records
(took 0.015 seconds)
