专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20080284759A1 DISPLAY ELEMENT DRIVING DEVICE AND METHOD THEREOF 审中-公开
标题翻译：显示元件驱动装置及其方法
公开(公告)号：US20080284759A1
公开(公告)日：2008-11-20
申请号：US12113445
申请日：2008-05-01
申请人： Tae Kwang Park
发明人： Tae Kwang Park
IPC分类号： G09G5/00
CPC分类号： G09G3/3406 , G09G2320/0646 , G09G2320/0673 , G09G2360/16
摘要： Disclosed are a device and a method for driving a display element that adjusts a backlight luminescence to be suitable for a mean luminescence of an image data for each frame, analyzes the mean, maximum and minimum luminescence of an image to be displayed to reduce power consumption due to unnecessary backlight luminescence, and then adjusts the backlight luminescence in accordance with the analyzed result. The device for driving a display element includes a buffer memory, a histogram analyzer, a main memory, a maximum luminescence determining and mapping unit and a digital-to-analog converter (DAC). When an image data to be displayed for each frame is inputted to the buffer memory, the histogram analyzer analyzes the image data for each frame to calculate a mean luminescence, a maximum/minimum luminescence and a histogram for each of the R, G and B colors, and then outputs the analyzed image data for each frame to the maximum luminescence determining and mapping unit. Accordingly, a backlight luminescence is adjusted for each frame in accordance with the maximum luminescence, the minimum luminescence and the histogram for each color, and output value for each gray is compensated by the adjusted backlight luminescence, thereby maintaining a screen luminescence almost similar to the original luminescence and reducing power consumption.
摘要翻译：公开了一种用于驱动显示元件的装置和方法，该显示元件调节适合于每帧的图像数据的平均发光的背光发光，分析要显示的图像的平均值，最大和最小发光以降低功耗由于不必要的背光发光，然后根据分析结果调整背光发光。用于驱动显示元件的装置包括缓冲存储器，直方图分析器，主存储器，最大发光确定和映射单元以及数模转换器（DAC）。当将每帧要显示的图像数据输入到缓冲存储器时，直方图分析器分析每帧的图像数据，以计算R，G和B中的每一个的平均发光，最大/最小发光和直方图然后将每帧的分析图像数据输出到最大发光确定和映射单元。因此，根据每个颜色的最大发光，最小发光和直方图针对每个帧调整背光发光，并且通过调节的背光发光来补偿每个灰度的输出值，从而保持屏幕发光几乎类似于原有的发光和降低功耗。

2. 发明申请

US20110242045A1 NOISE BLOCKING IN A CAPACITIVE TOUCH DEVICE 审中-公开
标题翻译：电容触摸装置中的噪声阻塞
公开(公告)号：US20110242045A1
公开(公告)日：2011-10-06
申请号：US12755238
申请日：2010-04-06
申请人： TAE KWANG PARK , ARUN JAYARAMAN
发明人： TAE KWANG PARK , ARUN JAYARAMAN
IPC分类号： G06F3/045
CPC分类号： G06F3/044 , G06F3/0418
摘要： A touch controller to be used by a touch screen device to provide a touch position is disclosed, including a plurality of capacitance sensing channels that each provide an analog signal responsive to a touch on a screen; a channel multiplexer to select at least one of the plurality of channels; an analog-to-digital converter to change the analog signal of the selected capacitance sensing channel to a digital signal; a noise detecting channel coupled to a noise analog-to-digital converter to generate a noise digital signal; a noise blocking timing generation block that combines a time shifted digital signal and a blocking signal, wherein the time shifted digital signal is formed by time shifting the digital signal and the blocking signal is related to the noise signal; a capacitance calculating block coupled to the noise blocking time generation block to calculate capacitance values for each of the capacitance sensing channels; and a position calculation unit to find the touch position on the screen based on the capacitance values for each of the capacitance sensing channels.
摘要翻译：公开了一种由触摸屏设备使用以提供触摸位置的触摸控制器，包括多个电容感测通道，每个电容感测通道响应于屏幕上的触摸而提供模拟信号; 信道多路复用器，用于选择所述多个信道中的至少一个; 模拟数字转换器，用于将所选择的电容感测通道的模拟信号改变为数字信号; 噪声检测通道，耦合到噪声模数转换器以产生噪声数字信号; 组合了时移数字信号和阻塞信号的噪声阻断定时产生块，其中时移数字信号是通过时移数字信号和阻塞信号形成的，与噪声信号有关; 耦合到所述噪声阻断时间产生块的电容计算块，以计算每个所述电容感测通道的电容值; 以及位置计算单元，用于基于每个电容感测通道的电容值来找到屏幕上的触摸位置。

3. 发明授权

US06919872B2 Method and apparatus for driving STN LCD 失效
标题翻译：用于驱动STN LCD的方法和装置
公开(公告)号：US06919872B2
公开(公告)日：2005-07-19
申请号：US10082942
申请日：2002-02-25
申请人： Tae-Kwang Park , Keunmyung Lee
发明人： Tae-Kwang Park , Keunmyung Lee
IPC分类号： G09G3/36
CPC分类号： G09G3/3625 , G09G2310/0208
摘要： A driver for driving an STN LCD is disclosed. A preferred embodiment comprises a 3-line output display data for storing display data, an XOR block for finding mismatches between each 3-line output set of the stored display and orthogonal function signals, a decoder block for calculating mismatch numbers, a level shifter block for shifting the data level of the mismatch numbers to another level, and a voltage selector block for selecting a voltage level from 2 levels of voltage. Because data latches and output latches are not necessary, the driver of the present invention achieves significant reduction in the circuit components and chip size without compromising the display quality.
摘要翻译：公开了用于驱动STN LCD的驱动器。优选实施例包括用于存储显示数据的3行输出显示数据，用于发现所存储的显示的每个3行输出组与正交函数信号之间的不匹配的异或块，用于计算不匹配数的解码器块，电平移位器块用于将不匹配数据的数据电平移动到另一个电平;以及电压选择器块，用于从2个电压电平中选择电压电平。因为不需要数据锁存器和输出锁存器，所以本发明的驱动器在不影响显示质量的情况下实现了电路部件和芯片尺寸的显着降低。

4. 发明授权

US07068248B2 Column driver for OLED display 失效
公开(公告)号：US07068248B2
公开(公告)日：2006-06-27
申请号：US10232595
申请日：2002-08-30
申请人： Sung Tae Ahn , Keunmyung Lee , Dae Young Ahn , Tae Kwang Park
发明人： Sung Tae Ahn , Keunmyung Lee , Dae Young Ahn , Tae Kwang Park
IPC分类号： G09G3/32
CPC分类号： G09G3/3208 , G09G3/3275 , G09G2300/0408 , G09G2300/0426 , G09G2310/0221 , G09G2320/02 , G09G2320/0223 , G09G2320/043
摘要： A single-chip column driver for organic light emitting diode (OLED) display is disclosed. Instead of using two column drivers for dual scan, the present invention uses one column driver driving both the upper and the lower OLED panels. The column driver has a two set of output circuitry: one for driving the upper panel and the other for driving the lower panel. The single chip solution of the present invention eliminates the problem of display uniformity without increasing the part count. The invention also enables independent control of RGB without further increasing the part count.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式