公开(公告)号：KR1020090131786A

公开(公告)日：2009-12-30

申请号：KR1020080057709

申请日：2008-06-19

Applicant: 삼성모바일디스플레이주식회사 ,  재단법인서울대학교산학협력재단

Inventor： 신동용 ,  김수환 ,  홍용택

IPC: G09G3/30 ,  G09G3/32 ,  G09G3/20 ,  H01L51/50

CPC classification number: H01L29/742 ,  G09G2310/027 ,  G09G2310/0286 ,  H01L21/02304 ,  H01L2027/11879 ,  H01L2227/32

Abstract: PURPOSE: An organic electroluminescent display device and a driving method thereof are provided to compensate for deterioration of an organic light emitting diode by generating the second data to generate the light with uniform brightness in all pixels from the first data and the deterioration information. CONSTITUTION: A data driver(120) supplies data signals generated using the second data supplied from a timing controller for a display period to data lines. A sensing unit measures the deterioration information of an organic light emitting diode included in the pixels. A switching unit connects one of the sensing unit and the data driving unit with the data lines. A timing controller(150) stores the deterioration information in the memory, controls the power unit using the deterioration information, and generates the second data using the deterioration information and the first data supplied from the outside. A power unit(190) controls the voltage values of the first power or second power corresponding to the control of the timing controller.

Abstract translation: 目的：提供一种有机电致发光显示装置及其驱动方法，以通过产生第二数据来补偿有机发光二极管的劣化，以从第一数据和劣化信息生成具有所有像素的均匀亮度的光。 构成：数据驱动器（120）将从显示周期的定时控制器提供的第二数据生成的数据信号提供给数据线。 感测单元测量包括在像素中的有机发光二极管的劣化信息。 开关单元使用数据线连接感测单元和数据驱动单元中的一个。 定时控制器（150）将劣化信息存储在存储器中，使用劣化信息控制功率单元，并使用劣化信息和从外部提供的第一数据生成第二数据。 功率单元（190）控制与定时控制器的控制相对应的第一功率或第二功率的电压值。

公开(公告)号：KR101082302B1

公开(公告)日：2011-11-10

申请号：KR1020090066288

申请日：2009-07-21

Applicant: 삼성모바일디스플레이주식회사

Inventor： 류도형 ,  신동용

IPC: G09G3/30 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/043 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/043

Abstract: 본발명의유기전계발광표시장치는주사선들을구동하기위한주사구동부와; 데이터선들을구동하기위한데이터구동부와; 상기주사선들및 데이터선들의사이에위치되며, 제 1전원으로부터유기발광다이오드를경유하여로우레벨의제 2전원으로흐르는전류량을제어하는화소들과; 상기화소들각각에포함된구동트랜지스터가턴-온될수 있는전압을공급하기위한초기전원부와; 상기초기전원부와상기데이터구동부를선택적으로접속시키기위한스위칭부와; 상기구동트랜지스터의문턱전압에해당하는제 2데이터를저장하고, 저장된상기제 2데이터를상기데이터구동부로전달하기위한보상부와; 외부로부터입력되는제 1데이터를상기데이터구동부로전달하고, 상기주사구동부, 데이터구동부및 보상부를제어하기위한타이밍제어부를구비하며; 상기데이터구동부는상기제 1데이터및 제 2데이터를이용하여상기화소들로공급되는제 3데이터신호를생성하고; 상기보상부는상기데이터선들각각과접속되는제 3스위칭소자들과; 상기제 3스위칭소자들과접속되며, 소정시간마다상기데이터선들에인가된전압을감지하며, 이전시점에서감지된전압과현재시점에서감지된전압이동일한전압값으로판단되는경우제어신호를생성하는전압감지부와; 상기제 3스위칭소자들및 전압감지부와접속되며상기제어신호가입력될때 상기제 1전원으로부터상기데이터선들에인가된전압을감산하기위한하나이상의감산부와; 상기감산부로부터공급된전압을상기제 2데이터로변환하기위한아날로그-디지털변환부와; 상기제 2데이터를저장하기위한메모리를구비한다.

公开(公告)号：KR1020110008774A

公开(公告)日：2011-01-27

申请号：KR1020090066288

申请日：2009-07-21

Applicant: 삼성모바일디스플레이주식회사

Inventor： 류도형 ,  신동용

IPC: G09G3/30 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/043 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/043

Abstract: PURPOSE: An organic electroluminescent display device and a driving method thereof are provided to compensate for the threshold voltage of a driving transistor and to include a minimum number of transistors in a pixel. CONSTITUTION: A scan driver drives scanning lines. A data driver(120) drives data lines. A pixel(140) controls a current. The current flows from a first power source part to a second power source part. An initial power part supplies a voltage. An initial power part turns on a driving transistor. A switching part(170) selectively connects the initial power part to the data driver. A compensation part(190) stores second data. The compensation part transfers the second data to the data driver. The second data is the threshold voltage of the driving transistor. A timing control part controls the scan driver, the data driver, and the compensation part.

Abstract translation: 目的：提供有机电致发光显示装置及其驱动方法，以补偿驱动晶体管的阈值电压，并在像素中包括最小数量的晶体管。 构成：扫描驱动器驱动扫描线。 数据驱动器（120）驱动数据线。 像素（140）控制电流。 电流从第一电源部分流向第二电源部。 初始电源部分提供电压。 初始功率部分导通驱动晶体管。 切换部分（170）选择性地将初始功率部分连接到数据驱动器。 补偿部分（190）存储第二数据。 补偿部分将第二个数据传送到数据驱动器。 第二数据是驱动晶体管的阈值电压。 定时控制部分控制扫描驱动器，数据驱动器和补偿部分。

公开(公告)号：KR1020080107829A

公开(公告)日：2008-12-11

申请号：KR1020070056120

申请日：2007-06-08

Applicant: 재단법인서울대학교산학협력재단 ,  주식회사 시너칩

Inventor： 김수환 ,  정덕균 ,  우종관 ,  신동용 ,  최원준

IPC: H03M1/66

CPC classification number: H03M1/662 ,  H03M2201/16 ,  H03M2201/311 ,  H03M2201/3157 ,  H03M2201/62

Abstract: A segmented digital to analog converter is provided to perform the miniaturization by reducing the number of the switches used in a coarse digital to analog converter. A segmented DAC(Digital to Analog Converter)(100) includes a first digital to analog converter, and a second digital-to-analog converter. The first digital to analog converter includes a first output terminal and a second output terminal. The first output terminal outputs a first coarse voltage. The second output terminal outputs a second coarse voltage. The second digital to analog converter outputs a minute voltage obtained by interpolating the first coarse voltage and the second coarse voltage. The first digital to analog converter includes a register string(110), and a first switch unit(120). The register string includes a plurality of resisters which are serially connected. The register string outputs a plurality of reference voltages. The first switch unit outputs two consecutive reference voltages selected among the plurality of the reference voltages as the first and second coarse voltages. The first coarse voltage is selected among odd-number reference voltages among the plurality of reference voltages. The second coarse voltage is selected among even-number reference voltages among the plurality of reference voltages.

Abstract translation: 提供分段数模转换器以通过减少粗略数模转换器中使用的开关数量来执行小型化。 分段DAC（数模转换器）（100）包括第一数模转换器和第二数/模转换器。 第一数模转换器包括第一输出端和第二输出端。 第一输出端输出第一粗电压。 第二输出端输出第二粗电压。 第二数模转换器输出通过内插第一粗电压和第二粗电压而获得的微小电压。 第一数模转换器包括寄存器串（110）和第一开关单元（120）。 寄存器串包括串联连接的多个电阻。 寄存器串输出多个参考电压。 第一开关单元输出在多个参考电压中选择的两个连续的参考电压作为第一和第二粗略电压。 第一粗略电压在多个参考电压中的奇数参考电压中选择。 第二粗电压在多个参考电压中的偶数参考电压中选择。