公开(公告)号：US07038673B2

公开(公告)日：2006-05-02

申请号：US10075285

申请日：2002-02-15

申请人： Seung-Woo Lee ,  Man-Bok Cheon ,  Su-Hyun Kwon

发明人： Seung-Woo Lee ,  Man-Bok Cheon ,  Su-Hyun Kwon

IPC分类号： G09G3/36

CPC分类号： G09G3/3677 ,  G09G2310/0251 ,  G09G2320/0252 ,  G09G2340/16

摘要： Disclosed are an LCD capable of realizing a pre-charging method even in the random data-enable mode, and an apparatus and method for driving the same. In the LCD driving apparatus, a timing controller outputs a vertical sync start signal based on a data-enable signal having an irregular output interval to control the output of the image data. A gate driver sequentially applies both first and second gate-on voltages to a same gate line based on the vertical sync start signal. The first gate-on voltage is to drive a previous line being most adjacent to and having the same polarity as the current line, and the second gate-on voltage is to drive the current line. An LCD panel is first charged with the first gate-on voltage supplied from the gate driver, and then charged with the second gate-on voltage, so that it can display analog image data received from the data driver during the second charging.

公开(公告)号：US07671855B2

公开(公告)日：2010-03-02

申请号：US11416334

申请日：2006-05-01

申请人： Seung-Woo Lee ,  Man-Bok Cheon ,  Su-Hyun Kwon

发明人： Seung-Woo Lee ,  Man-Bok Cheon ,  Su-Hyun Kwon

IPC分类号： G09G5/00

CPC分类号： G09G3/3677 ,  G09G2310/0251 ,  G09G2320/0252 ,  G09G2340/16

摘要： Disclosed are an LCD capable of realizing a pre-charging method even in the random data-enable mode, and an apparatus and method for driving the same. In the LCD driving apparatus, a timing controller outputs a vertical sync start signal based on a data-enable signal having an irregular output interval to control the output of the image data. A gate driver sequentially applies both first and second gate-on voltages to a same gate line based on the vertical sync start signal. The first gate-on voltage is to drive a previous line being most adjacent to and having the same polarity as the current line, and the second gate-on voltage is to drive the current line. An LCD panel is first charged with the first gate-on voltage supplied from the gate driver, and then charged with the second gate-on voltage, so that it can display analog image data received from the data driver during the second charging.

摘要翻译： 公开了即使在随机数据使能模式中也能够实现预充电方法的LCD，以及用于驱动该LCD的装置和方法。 在LCD驱动装置中，定时控制器基于具有不规则输出间隔的数据使能信号输出垂直同步开始信号，以控制图像数据的输出。 栅极驱动器基于垂直同步开始信号顺序地将第一和第二栅极导通电压施加到同一栅极线。 第一栅极导通电压是驱动与电流线最相邻并具有相同极性的前一行，并且第二栅极导通电压用于驱动电流线。 首先对LCD面板充电由栅极驱动器提供的第一栅极导通电压，然后充电第二栅极导通电压，使得其可以在第二次充电期间显示从数据驱动器接收的模拟图像数据。

公开(公告)号：US20060197731A1

公开(公告)日：2006-09-07

申请号：US11416334

申请日：2006-05-01

申请人： Seung-Woo Lee ,  Man-Bok Cheon ,  Su-Hyun Kwon

发明人： Seung-Woo Lee ,  Man-Bok Cheon ,  Su-Hyun Kwon

IPC分类号： G09G3/36

CPC分类号： G09G3/3677 ,  G09G2310/0251 ,  G09G2320/0252 ,  G09G2340/16

摘要： Disclosed are an LCD capable of realizing a pre-charging method even in the random data-enable mode, and an apparatus and method for driving the same. In the LCD driving apparatus, a timing controller outputs a vertical sync start signal based on a data-enable signal having an irregular output interval to control the output of the image data. A gate driver sequentially applies both first and second gate-on voltages to a same gate line based on the vertical sync start signal. The first gate-on voltage is to drive a previous line being most adjacent to and having the same polarity as the current line, and the second gate-on voltage is to drive the current line. An LCD panel is first charged with the first gate-on voltage supplied from the gate driver, and then charged with the second gate-on voltage, so that it can display analog image data received from the data driver during the second charging.

公开(公告)号：US08253671B2

公开(公告)日：2012-08-28

申请号：US11933355

申请日：2007-10-31

申请人： Jong-Seon Kim ,  Man-Bok Cheon ,  Seung-Woo Lee

发明人： Jong-Seon Kim ,  Man-Bok Cheon ,  Seung-Woo Lee

IPC分类号： G09G3/36

CPC分类号： G09G3/3611 ,  G09G3/20 ,  G09G2320/0276

摘要： An LCD for improving dynamic contrast by adjusting gamma voltages according to the brightness of an image is provided. The LCD includes: a liquid crystal display panel assembly having a plurality of pixels provided on crossing areas of a plurality of gate lines and a plurality of data lines; a gate driver applying voltage signals for sequentially scanning the gate lines; a source driver applying voltage signals for image display to the data lines; a timing controller providing image data and a control signal for the source driver, providing a gate line on/off control signal for the gate driver, and outputting digital gamma data to a digital/analogue (D/A) converter; and the D/A converter connected to the timing controller for converting the digital gamma data from the timing controller into analog signals to generate a plurality of gamma voltages and outputting the gamma voltages to the source driver. The LCD generates the gamma voltages by the D/A converter in place of using serially-connected resistors, and thus, the gamma voltages may vary depending on the brightness of the image.

摘要翻译： 提供了一种用于通过根据图像的亮度调整伽玛电压来改善动态对比度的LCD。 LCD包括：具有设置在多条栅极线和多条数据线的交叉区域上的多个像素的液晶显示面板组件; 栅极驱动器施加用于顺序扫描栅极线的电压信号; 源驱动器将用于图像显示的电压信号施加到数据线; 提供用于所述源极驱动器的图像数据和控制信号的定时控制器，为所述栅极驱动器提供栅极线导通/截止控制信号，以及将数字伽玛数据输出到数字/模拟（D / A）转换器; 和连接到定时控制器的D / A转换器，用于将来自定时控制器的数字伽马数据转换为模拟信号，以产生多个伽马电压，并将伽马电压输出到源驱动器。 LCD通过D / A转换器代替使用串联电阻产生伽马电压，因此，伽马电压可能会根据图像的亮度而变化。

公开(公告)号：US07317460B2

公开(公告)日：2008-01-08

申请号：US10385249

申请日：2003-03-10

申请人： Jong-Seon Kim ,  Man-Bok Cheon ,  Seung-Woo Lee

发明人： Jong-Seon Kim ,  Man-Bok Cheon ,  Seung-Woo Lee

IPC分类号： G09G5/10

CPC分类号： G09G3/3611 ,  G09G3/20 ,  G09G2320/0276

摘要： An LCD for improving dynamic contrast by adjusting gamma voltages according to the brightness of an image is provided. The LCD includes: a liquid crystal display panel assembly having a plurality of pixels provided on crossing areas of a plurality of gate lines and a plurality of data lines; a gate driver applying voltage signals for sequentially scanning the gate lines; a source driver applying voltage signals for image display to the data lines; a timing controller providing image data and a control signal for the source driver, providing a gate line on/off control signal for the gate driver, and outputting digital gamma data to a digital/analogue (D/A) converter; and the D/A converter connected to the timing controller for converting the digital gamma data from the timing controller into analog signals to generate a plurality of gamma voltages and outputting the gamma voltages to the source driver. The LCD generates the gamma voltages by the D/A converter in place of using serially-connected resistors, and thus, the gamma voltages may vary depending on the brightness of the image.

摘要翻译： 提供了一种用于通过根据图像的亮度调整伽玛电压来改善动态对比度的LCD。 LCD包括：具有设置在多条栅极线和多条数据线的交叉区域上的多个像素的液晶显示面板组件; 栅极驱动器施加用于顺序扫描栅极线的电压信号; 源驱动器将用于图像显示的电压信号施加到数据线; 提供用于所述源极驱动器的图像数据和控制信号的定时控制器，为所述栅极驱动器提供栅极线导通/截止控制信号，以及将数字伽玛数据输出到数字/模拟（D / A）转换器; 和连接到定时控制器的D / A转换器，用于将来自定时控制器的数字伽马数据转换为模拟信号，以产生多个伽马电压，并将伽马电压输出到源驱动器。 LCD通过D / A转换器代替使用串联电阻产生伽马电压，因此，伽马电压可能会根据图像的亮度而变化。

公开(公告)号：US07154464B2

公开(公告)日：2006-12-26

申请号：US10150163

申请日：2002-05-17

申请人： Seung-Woo Lee ,  Jang-Kun Song ,  Su-Hyun Kwon

发明人： Seung-Woo Lee ,  Jang-Kun Song ,  Su-Hyun Kwon

IPC分类号： G09G3/36 ,  G09G5/00

CPC分类号： G09G3/3648 ,  G09G3/3614 ,  G09G3/3677 ,  G09G2310/06

摘要： The present invention relates to a line inversion type liquid crystal display and a driving method thereof. A plurality of pixels arranged in a matrix, a plurality of data lines extending in a row direction and a plurality of gate lines extending in a column direction are disposed in a liquid crystal panel of the liquid crystal display. The pixel has a liquid crystal capacitor for performing display operation and a switching element turned on in response to a gate-on voltage to apply a data signal to the liquid crystal capacitor. A gate driver sequentially provides gate-on pulses to the gate lines based on gate control signals from a timing controller, and a data driver sequentially applies the data signals with polarity inversion, corresponding to color signals from the timing controller based on the data control signal from the timing controller. The polarity of the data signals is inverted by the unit of at least two pixel rows. Since the width of the gate-on pulse applied to the first pixel row with polarity inversion is larger than that of other gate-on pulses, a charging ratio of the first pixel row with polarity inversion is larger than that of the other rows.

公开(公告)号：US07817132B2

公开(公告)日：2010-10-19

申请号：US11120530

申请日：2005-05-02

申请人： Seung-Woo Lee ,  Su-Hyun Kwon

发明人： Seung-Woo Lee ,  Su-Hyun Kwon

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/3611 ,  G09G3/3614 ,  G09G5/006 ,  G09G2310/027 ,  G09G2310/0281 ,  G09G2330/021 ,  G09G2330/06 ,  G09G2370/08

摘要： A flat panel display includes a panel assembly provided with a plurality of gate lines, a plurality of data lines and switching elements connected to the gate lines and the data lines; a signal controller synthesizing digital image data and control signals from an external device and generating synthesized signals and gate control signals; a column driver applying analogue data voltages corresponding to the digital image data to the data lines responsive to the synthesized signals; and a gate driver applying the gate control signals to the gate lines.

摘要翻译： 平板显示器包括设置有多条栅极线的面板组件，连接到栅极线和数据线的多条数据线和开关元件; 信号控制器，合成来自外部设备的数字图像数据和控制信号，并产生合成信号和门控制信号; 列驱动器，响应于合成信号，将对应于数字图像数据的模拟数据电压应用于数据线; 以及将栅极控制信号施加到栅极线的栅极驱动器。

公开(公告)号：US20060007089A1

公开(公告)日：2006-01-12

申请号：US11214787

申请日：2005-08-31

申请人： Seung-Woo Lee ,  Jong-Seon Kim ,  Su-Hyun Kwon

发明人： Seung-Woo Lee ,  Jong-Seon Kim ,  Su-Hyun Kwon

IPC分类号： G09G3/36

CPC分类号： G09G3/3607 ,  G09G3/2055 ,  G09G2320/0276

摘要： A liquid crystal display includes a liquid crystal display panel for displaying picture images, and a color correction unit. Upon receipt of raw RGB picture data corresponding to raw RGB gamma curves, the color correction unit generates corrected RGB picture data based on values over a predetermined imaginative gamma curve established in accordance with the characteristic of the liquid crystal display panel. The color correction unit stores values over corrected RGB gamma curves corresponding to the corrected picture data, and gamma-corrects the raw RGB picture data based on values over the stored corrected RGB gamma curves, thereby displaying the picture images.

公开(公告)号：US20100309234A1

公开(公告)日：2010-12-09

申请号：US12824126

申请日：2010-06-25

申请人： Seung-Woo Lee ,  Jong-Seon Kim ,  Su-Hyun Kwon

发明人： Seung-Woo Lee ,  Jong-Seon Kim ,  Su-Hyun Kwon

IPC分类号： G09G5/10

CPC分类号： G09G3/3607 ,  G09G3/2055 ,  G09G2320/0276

摘要： A liquid crystal display includes a liquid crystal display panel for displaying picture images, and a color correction unit. Upon receipt of raw RGB picture data corresponding to raw RGB gamma curves, the color correction unit generates corrected RGB picture data based on values over a predetermined imaginative gamma curve established in accordance with the characteristic of the liquid crystal display panel. The color correction unit stores values over corrected RGB gamma curves corresponding to the corrected picture data, and gamma-corrects the raw RGB picture data based on values over the stored corrected RGB gamma curves, thereby displaying the picture images.

摘要翻译： 液晶显示器包括用于显示图像图像的液晶显示面板和颜色校正单元。 在接收到与原始RGB伽马曲线对应的原始RGB图像数据时，颜色校正单元基于根据液晶显示面板的特性建立的预定想象伽马曲线上的值产生校正的RGB图像数据。 颜色校正单元存储与经校正的图像数据相对应的经校正的RGB伽马曲线的值，并且基于存储的校正的RGB伽玛曲线上的值对原始RGB图像数据进行伽马校正，从而显示图像图像。

公开(公告)号：US20050052386A1

公开(公告)日：2005-03-10

申请号：US10928379

申请日：2004-08-27

申请人： Su-Hyun Kwon ,  Seung-Woo Lee

发明人： Su-Hyun Kwon ,  Seung-Woo Lee

IPC分类号： G02F1/133 ,  G02F1/136 ,  G09G3/20 ,  G09G3/36 ,  G09G5/00 ,  G09G5/36 ,  G09G5/393 ,  G09G5/395 ,  H01L29/786

CPC分类号： G09G3/3648 ,  G09G2320/0252 ,  G09G2320/0261 ,  G09G2340/0428 ,  G09G2340/16

摘要： A method and device for improving image quality without the attendant cost-increasing factors such as a high number of frame memories and high power consumption is presented. In one aspect, the invention is a signal processing device for a display unit that includes a signal processor and a frame memory. The signal processor receives image data in a first format and generates a modified image data in a second format that has a different bit number and frequency than the first format. The signal processing device may include a signal processor, a data output unit, and a frame memory (e.g., DDR memory). The signal processor receives image data having a given data rate and divides the image data into two sets of image data. The data output unit receives the sets of image data and generates a recombined image data having a higher data rate.

摘要翻译： 本发明提供一种提高图像质量的方法和装置，而不需要诸如高数量的帧存储器和高耗电量等随之而来的成本增加因素。 一方面，本发明是一种用于显示单元的信号处理装置，包括信号处理器和帧存储器。 信号处理器以第一格式接收图像数据，并以与第一格式不同的位数和频率生成第二格式的修改图像数据。 信号处理装置可以包括信号处理器，数据输出单元和帧存储器（例如，DDR存储器）。 信号处理器接收具有给定数据速率的图像数据，并将图像数据分成两组图像数据。 数据输出单元接收图像数据组，并生成具有较高数据速率的重组图像数据。