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    • 22. 发明授权
    • Liquid crystal display panel driving circuit
    • 液晶显示面板驱动电路
    • US08963905B2
    • 2015-02-24
    • US12912187
    • 2010-10-26
    • Hyun-Ho ChoJi-Hun KimJoon-Ho NaHyung-Seog OhDae-Seong KimDae-Keun Han
    • Hyun-Ho ChoJi-Hun KimJoon-Ho NaHyung-Seog OhDae-Seong KimDae-Keun Han
    • G09G5/00H03M1/00G09G3/36G09G3/20
    • G09G3/3685G09G3/20G09G3/3696G09G2310/027
    • Disclosed is a liquid crystal display panel driving circuit for driving a liquid crystal display panel with a resolution of N bits. N-bit digital data including upper X bits and lower Y bits is inputted. The liquid crystal display panel driving circuit includes a resistor string unit according to areas, a DAC converter switching unit according to areas, and an interpolation amplifier. The resistor string unit outputs analog reference voltages at different ratios according to three areas. The DAC converter switching unit receives the N-bit digital data, selects (Y+1) analog voltages from the analog reference voltages based on the upper X bits, outputs the (Y+1) analog voltages, and outputs the (Y+1) analog voltages of different combinations based on the lower Y bits. The interpolation amplifier receives the (Y+1) analog voltages and generates an interpolated output voltage by setting weights for the (Y+1) analog voltages by using multi-factors.
    • 公开了一种以N位分辨率驱动液晶显示面板的液晶显示面板驱动电路。 输入包括高X位和低Y位的N位数字数据。 液晶显示面板驱动电路包括根据区域的电阻串单元,根据区域的DAC转换器切换单元和内插放大器。 电阻串单元根据三个区域输出不同比例的模拟参考电压。 DAC转换器切换单元接收N位数字数据,从模拟参考电压基于高X位选择(Y + 1)模拟电压,输出(Y + 1)模拟电压,并输出(Y + 1) )基于较低Y位的不同组合的模拟电压。 内插放大器通过使用多因素设置(Y + 1)模拟电压的权重,接收(Y + 1)模拟电压并产生内插输出电压。
    • 23. 发明授权
    • Display drive circuit and drive method
    • 显示驱动电路和驱动方式
    • US08451207B2
    • 2013-05-28
    • US12997847
    • 2009-05-22
    • Hyun Ho ChoHyun Ja ChoJoon Ho NaDae Seong KimDae Keun Han
    • Hyun Ho ChoHyun Ja ChoJoon Ho NaDae Seong KimDae Keun Han
    • G09G3/36
    • G09G3/3685G09G3/20G09G3/3688G09G2310/0275G09G2310/061G09G2320/0257G09G2330/021
    • A display driving circuit and method is capable of minimizing the residual image of a display panel as well as consumption electric current. The display driving circuit generates driving signals corresponding to valid data and black data and transmits the driving signals to a display panel, and includes N data selection switches (where N is the integer), N buffers, N buffer output selection switches, and multiple charge sharing switches. The N data selection switches select one of the valid data and the black data. The N buffers buffer the signal selected by the respective data selection switches. The N buffer output selection switches switch outputs of the buffers to output the respective driving signals. The multiple charge sharing switches connect the neighboring pairs of the driving signals.
    • 显示驱动电路和方法能够使显示面板的残留图像以及消耗电流最小化。 显示驱动电路产生与有效数据和黑色数据相对应的驱动信号,并将驱动信号发送到显示面板,并且包括N个数据选择开关(其中N是整数),N个缓冲器,N个缓冲器输出选择开关和多次充电 共享交换机 N个数据选择开关选择有效数据和黑色数据之一。 N个缓冲器缓冲由各个数据选择开关选择的信号。 N个缓冲器输出选择开关切换缓冲器的输出以输出相应的驱动信号。 多个电荷共享开关连接相邻的驱动信号对。
    • 24. 发明申请
    • READOUT INTEGRATED CIRCUIT FOR A TOUCH SCREEN
    • 用于触摸屏的读出集成电路
    • US20120169701A1
    • 2012-07-05
    • US13394696
    • 2010-09-01
    • Young Suk SonHyung Seog OhDae Keun HanGyu Hyeong ChoJun Hyeok YangSeung Chul Jung
    • Young Suk SonHyung Seog OhDae Keun HanGyu Hyeong ChoJun Hyeok YangSeung Chul Jung
    • G09G5/00
    • G06F3/0416G06F3/042G06F3/044
    • A readout integrated circuit (ROIC) for a touch screen, the readout integrated circuit includes: a touch sensor unit configured to include a plurality of touch sensors which are arranged in a matrix form having rows and columns in an inside or outside of a touch screen panel (TSP); a plurality of sensing blocks configured to sense an electrical change in each of the touch sensors, to convert the electrical change into a voltage value, and to store the voltage value; a delta circuit unit configured to receive a difference between two sensing voltage values stored in two sensing blocks, respectively, which are spaced by a predetermined distance and selected from among the plurality of sensing blocks, and to produce a delta (Δ) voltage; and an analog-to-digital converter configured to convert an analog signal output from the delta circuit unit into an N-bit digital signal (wherein, “N” is a natural number).
    • 一种用于触摸屏的读出集成电路(ROIC),所述读出集成电路包括:触摸传感器单元,被配置为包括多个触摸传感器,所述多个触摸传感器以矩阵形式布置,在触摸屏的内部或外部具有行和列 小组(TSP); 多个感测块,被配置为感测每个触摸传感器中的电变化,将电变化转换为电压值,并存储电压值; Δ电路单元,被配置为接收分别存储在两个感测块中的两个感测电压值之间的差异,所述感测电压值间隔预定距离并从所述多个感测块中选择并产生增量(&Dgr)电压; 以及模拟 - 数字转换器,被配置为将从所述增量电路单元输出的模拟信号转换为N位数字信号(其中,“N”是自然数)。
    • 25. 发明申请
    • DISPLAY DRIVE CIRCUIT
    • 显示驱动电路
    • US20110164006A1
    • 2011-07-07
    • US13063539
    • 2009-09-04
    • Young-Suk SonHyun-Min SongHyun-Ja ChoYong-Sung AhnHyung-Seong OhDae-keun Han
    • Young-Suk SonHyun-Min SongHyun-Ja ChoYong-Sung AhnHyung-Seong OhDae-keun Han
    • G09G5/00
    • G09G3/3614G09G3/3688G09G2310/0248G09G2310/0297G09G2330/021
    • A display driving circuit includes a buffer section, an N-dot switch circuit, a charge sharing switch circuit, and a sharing voltage level control switch circuit. The buffer section buffers a plurality of pixel driving signals outputted from a plurality of DACs. The N-dot switch circuit selects paths of the plurality of pixel driving signals outputted from the buffer section in response to a first path selecting signal or a second path selecting signal that is determined depending upon a dot inversion method, and switches the paths to a plurality of output terminals. The charge sharing switch circuit shares charges among the plurality of output terminals in response to a charge sharing control signal. The sharing voltage level control switch circuit controls charge sharing between the plurality of output terminals and a voltage level upon charge sharing, in response to a sharing voltage level control signal.
    • 显示驱动电路包括缓冲器部分,N点开关电路,电荷共享开关电路和共享电压电平控制开关电路。 缓冲器部分缓冲从多个DAC输出的多个像素驱动信号。 N点开关电路响应于根据点反转方法确定的第一路径选择信号或第二路径选择信号,选择从缓冲器部分输出的多个像素驱动信号的路径,并将路径切换到 多个输出端子。 电荷共享开关电路响应于电荷共享控制信号而在多个输出端子之间共享电荷。 响应于共享电压电平控制信号,共享电压电平控制开关电路控制多个输出端子之间的电荷共享和电荷共享时的电压电平。
    • 26. 发明申请
    • CIRCUIT AND METHOD FOR DRIVING OLED DISPLAY
    • 用于驱动OLED显示器的电路和方法
    • US20110102410A1
    • 2011-05-05
    • US12912223
    • 2010-10-26
    • Hyun-Ho CHOYong-Icc JungYoung-Bok KimJoon-Ho NaDae-Seong KimDae-Keun Han
    • Hyun-Ho CHOYong-Icc JungYoung-Bok KimJoon-Ho NaDae-Seong KimDae-Keun Han
    • G09G5/00
    • G09G3/3291G09G2300/0819G09G2320/0285G09G2320/0295G09G2320/045
    • A circuit for driving an organic light emitting diode display includes a display panel that displays an image by using organic light emitting diodes disposed at intersection areas of a plurality of gate lines and a plurality of data lines; a threshold voltage detection control unit that supplies a precharge voltage by sequentially turning on transistors for threshold voltage detection, which are connected among the data lines and the organic light emitting diodes on the display panel, in units of horizontal lines, and enables threshold voltages to be detected; and a source driver that detects threshold voltages of all organic light emitting diodes arranged on a corresponding horizontal line, and repeats an operation, as necessary, for sampling/holding the detected threshold voltages through M sample/hold circuits, converting the sampled/held threshold voltages into digital signals, and storing the digital signals in a memory.
    • 用于驱动有机发光二极管显示器的电路包括:显示面板,其通过使用设置在多条栅极线和多条数据线的交叉区域上的有机发光二极管来显示图像; 阈值电压检测控制单元,其以水平线为单位顺序地接通连接在显示面板上的数据线和有机发光二极管之间的用于阈值电压检测的晶体管,从而提供预充电电压, 被检测到 以及源驱动器,其检测布置在相应的水平线上的所有有机发光二极管的阈值电压,并根据需要重复进行通过M个采样/保持电路采样/保持检测到的阈值电压的操作,转换采样/保持阈值 电压转换为数字信号,并将数字信号存储在存储器中。