公开(公告)号：US20120044269A1

公开(公告)日：2012-02-23

申请号：US13036363

申请日：2011-02-28

Applicant: Sang Hyun CHA ,  Yeun Joong Lee ,  Gyu Hyeong Cho ,  Jin Yong Jeon ,  Jun Hyeok Yang ,  Hyun Sik Kim ,  Jae Shin Lee

Inventor： Sang Hyun CHA ,  Yeun Joong Lee ,  Gyu Hyeong Cho ,  Jin Yong Jeon ,  Jun Hyeok Yang ,  Hyun Sik Kim ,  Jae Shin Lee

IPC: G09G5/10

CPC classification number: G09G3/3275 ,  G09G3/3225 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/0693 ,  G09G2360/16

Abstract: There is provided an organic light emitting diode driver capable of compensating for pixel deterioration in real time during the driving of pixels by selectively compensating pixels, requiring compensation, for the deterioration thereof, and precisely setting calibration data by removing an IR drop across a transistor, employed as a switch in the pixels, by calculating a difference between at least two representative values of different gray scale ranges among predetermined gray scale ranges.

Abstract translation: 提供了一种有机发光二极管驱动器，其能够通过选择性地补偿像素，需要补偿其劣化并通过去除晶体管两端的IR压差来精确地设置校准数据来补偿在像素驱动期间实时的像素劣化， 通过计算预定灰度范围中的不同灰度范围的至少两个代表值之间的差异，用作像素中的开关。

公开(公告)号：US20120032991A1

公开(公告)日：2012-02-09

申请号：US13034060

申请日：2011-02-24

Applicant: Sang Hyun Cha ,  Yeun Joong Lee ,  Gyu Hyeong Cho ,  Jin Yong Jeon ,  Kyung Ho Lee ,  Jun Hyeok Yang ,  Hyun Sik Kim ,  Jae Shin Lee

Inventor： Sang Hyun Cha ,  Yeun Joong Lee ,  Gyu Hyeong Cho ,  Jin Yong Jeon ,  Kyung Ho Lee ,  Jun Hyeok Yang ,  Hyun Sik Kim ,  Jae Shin Lee

IPC: G09G5/00 ,  G09G3/14 ,  G09G5/10

CPC classification number: G09G3/3208 ,  G09G2320/043 ,  G09G2320/048 ,  G09G2320/0693

Abstract: There is provided an organic light emitting diode driver being capable of compensating for pixel deterioration in real time during the driving of pixels by selectively compensating pixels, requiring compensation, for the deterioration thereof. The organic light emitting diode driver includes a converting unit converting input data into compensation data used to selectively compensate for pixel deterioration depending on whether the input data has been calibrated or not; a driving unit driving pixels of a pixel unit based on the compensation data from the converting unit; and a compensating unit providing the converting unit with a deterioration compensation signal based on deterioration information obtained from a pixel driven by the driving unit.

Abstract translation: 提供了一种有机发光二极管驱动器，其能够通过选择性地补偿要求补偿的劣化的像素来补偿在像素驱动期间实时的像素劣化。 有机发光二极管驱动器包括转换单元，其将输入数据转换成用于根据输入数据是否被校准来选择性地补偿像素劣化的补偿数据; 基于来自所述转换单元的补偿数据驱动像素单元的像素的驱动单元; 以及补偿单元，其基于从由所述驱动单元驱动的像素获得的劣化信息，向所述转换单元提供劣化补偿信号。

公开(公告)号：US20070290911A1

公开(公告)日：2007-12-20

申请号：US11754431

申请日：2007-05-29

Applicant: Gyu Hyeong Cho ,  Yong-Joon Jeon ,  Young-Suk Son ,  Sang Kyung Kim ,  Jin Yong Jeon ,  Gun Ho Lee

Inventor： Gyu Hyeong Cho ,  Yong-Joon Jeon ,  Young-Suk Son ,  Sang Kyung Kim ,  Jin Yong Jeon ,  Gun Ho Lee

IPC: H03M1/66

CPC classification number: H03M1/745

Abstract: A digital-to-analog converter comprises a current supplier, a current divider dividing current supplied from the current supplier into certain amounts, an inverter outputting inverted signals of input signals and non-inverted signals, a switch controlling a flow of the current divided into the certain amounts by the current divider according to the inverted signals and the non-inverted signals, and a current output block adding up the current divided into the certain amounts according to the non-inverted signals to output an analog signal. The digital-to-analog converter can be implemented on a small chip area with desired resolution.

Abstract translation: 一个数模转换器包括一个当前供应商，一个分流器，从当前供应商提供一定的电流，反相器输出反相信号的输入信号和非反相信号;一个开关控制电流分流 根据反相信号和非反相信号通过电流除法器确定一定量，以及根据非反相信号将分成一定量的电流相加的电流输出块，以输出模拟信号。 数模转换器可以在具有所需分辨率的小芯片区域上实现。

公开(公告)号：US20120044271A1

公开(公告)日：2012-02-23

申请号：US13115403

申请日：2011-05-25

Applicant: Yeun Joong LEE ,  Sang Hyun CHA ,  Gyu Hyeong CHO ,  Jin Yong JEON ,  Jun Hyeok YANG ,  Hyun Sik KIM ,  Jae Shin LEE

Inventor： Yeun Joong LEE ,  Sang Hyun CHA ,  Gyu Hyeong CHO ,  Jin Yong JEON ,  Jun Hyeok YANG ,  Hyun Sik KIM ,  Jae Shin LEE

IPC: G09G3/32 ,  G09G5/10

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/043

Abstract: There is provided an active matrix organic light emitting diode display including: a data driving unit converting previously prepared correction data into a correction signal and generates a driving signal according to the analog correction signal; a pixel unit having an organic light emitting diode (OLED) between first and second power supply terminals receiving first and second powers, respectively, charging a value corresponding to the correction data according to the driving signal in a predetermined programming period, detecting the driving signal in order to detect deterioration, and allowing current to flow through the OLED according to the value charged in the predetermined programming period in a predetermined holding period; and an ADC detecting deterioration voltage corresponding to the driving signal having deterioration information of the OLED of the pixel unit in the holding period.

Abstract translation: 提供了一种有源矩阵有机发光二极管显示器，包括：数据驱动单元，将预先准备的校正数据转换为校正信号，并根据模拟校正信号产生驱动信号; 在第一和第二电源端子之间分别接收第一和第二功率的有机发光二极管（OLED）的像素单元，分别在预定编程周期内根据驱动信号对与校正数据相对应的值进行充电，检测驱动信号 以便检测劣化，并允许电流在预定的保持期内根据在预定编程周期内充电的值流过OLED; 以及在保持期间，检测与具有像素单元的OLED的劣化信息的驱动信号相对应的劣化电压的ADC。

公开(公告)号：US07876292B2

公开(公告)日：2011-01-25

申请号：US11543588

申请日：2006-10-04

Applicant: Gyu-hyeong Cho ,  Jin-yong Jeon ,  Gun-ho Lee ,  Young-suk Son ,  Sang Kyung Kim

Inventor： Gyu-hyeong Cho ,  Jin-yong Jeon ,  Gun-ho Lee ,  Young-suk Son ,  Sang Kyung Kim

IPC: G09G3/36

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0252 ,  G09G2320/0295 ,  G09G2320/043

Abstract: An active matrix organic light emitting diode AMOLED driving circuit using current feedback that ensures the uniformity of brightness in pixels of a flat panel display and shortens the time required to input accurate current to respective pixels in the driving circuit.The prevent invention provides an AMOLED driving circuit using current feedback, comprising: a current digital-to-analog converter outputting a current corresponding to input digital data; a first differential amplifier connected to the current digital-to-analog converter and controlling the input data current and a driving current of a driving transistor of a pixel circuit to be identical to each other; a current mirror mirroring driving current of an organic light emitting diode of the pixel circuit to an input side of the first differential amplifier; and a second differential amplifier coupled to the current mirror and controlling charge and discharge speeds of parasitic capacitance of the pixel circuit.

Abstract translation: 使用电流反馈的有源矩阵有机发光二极管AMOLED驱动电路，其确保平板显示器的像素中亮度的均匀性，并缩短将精确电流输入到驱动电路中的各个像素所需的时间。 本发明提供一种使用电流反馈的AMOLED驱动电路，包括：输出与输入数字数据相对应的电流的当前数模转换器; 连接到当前数模转换器并控制像素电路的驱动晶体管的输入数据电流和驱动电流彼此相同的第一差分放大器; 将像素电路的有机发光二极管的驱动电流的电流镜反射到第一差分放大器的输入侧; 以及耦合到电流镜并且控制像素电路的寄生电容的充电和放电速度的第二差分放大器。

公开(公告)号：US20070139311A1

公开(公告)日：2007-06-21

申请号：US11633984

申请日：2006-12-04

Applicant: Gyu Cho ,  Sang-kyung Kim ,  Young-suk Son ,  Yong-joon Jeon ,  Jin-yong Jeon ,  Gun-ho Lee

Inventor： Gyu Cho ,  Sang-kyung Kim ,  Young-suk Son ,  Yong-joon Jeon ,  Jin-yong Jeon ,  Gun-ho Lee

IPC: G09G3/30

CPC classification number: G09G3/3241 ,  G09G3/3233 ,  G09G3/325 ,  G09G3/3283 ,  G09G2300/0408 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0295 ,  G09G2320/043

Abstract: A current feedback-type AMOLED driving circuit. The current feedback-type AMOLED driving circuit includes a plurality of pixel circuits each having a data terminal for receiving a pixel current command, and a sense terminal for transmitting pixel current to a driver Integrated Circuit (IC), and a plurality of data lines provided such that a single data line is provided for a single column formed by a plurality of pixel circuits, thus data terminals of the pixel circuits, forming the column, are connected to the data line. In the AMOLED driving circuit, two columns are paired, sense terminals of pixel circuits, forming a first column of the two columns, are connected to a data line for a second column, and sense terminals of pixel circuits, forming the second column, are connected to the data line for the first column. The AMOLED driving circuit is operated such that, when the first column is driven, the data line for the second column is used as a current feedback line for the first column, and when the second column is driven, the data line for the first column is used as a current feedback line for the second column. Accordingly, the number of pads of the driver IC is limited to one per column, and price competitiveness of the driver IC is improved.

Abstract translation: 电流反馈型AMOLED驱动电路。 电流反馈型AMOLED驱动电路包括多个像素电路，每个像素电路都具有用于接收像素电流命令的数据端子，以及用于向驱动器集成电路（IC）传输像素电流的检测端子，以及多条数据线 使得为由多个像素电路形成的单列提供单个数据线，因此形成列的像素电路的数据端子连接到数据线。 在AMOLED驱动电路中，两列成对，形成第二列的第一列的像素电路的检测端子连接到第二列的数据线，形成第二列的像素电路的检测端子是 连接到第一列的数据行。 操作AMOLED驱动电路，使得当驱动第一列时，将第二列的数据线用作第一列的电流反馈线，并且当第二列被驱动时，用于第一列的数据线 用作第二列的电流反馈线。 因此，驱动器IC的焊盘的数量被限制为每列一个，并且提高了驱动器IC的价格竞争力。

公开(公告)号：US07764212B2

公开(公告)日：2010-07-27

申请号：US11930850

申请日：2007-10-31

Applicant: Hyung-Min Lee ,  Gyu Hyeong Cho ,  Young-Suk Son ,  Yong-Joon Jeon ,  Jin Yong Jeon ,  Seung-Chul Jung

Inventor： Hyung-Min Lee ,  Gyu Hyeong Cho ,  Young-Suk Son ,  Yong-Joon Jeon ,  Jin Yong Jeon ,  Seung-Chul Jung

IPC: H03M1/66

CPC classification number: H03M1/682 ,  G09G3/20 ,  G09G2310/027 ,  G09G2320/0276 ,  G09G2330/028 ,  H03M1/765

Abstract: A driving apparatus for a display is provided. The driving apparatus for a display comprises a reference voltage generator, a digital-to-analog converter, and an output unit. The reference voltage generator generates a plurality of reference voltages, and receives a difference value between two adjacent reference voltages and generates a plurality of sub reference voltages. The digital-to-analog converter selects one of the reference voltages and outputs the selected reference voltage as a first analog signal. The digital-to-analog converter selects one of the sub reference voltages and outputs the selected reference voltage as a second analog signal. The output unit processes, by addition or subtraction, the first and second analog signals for output.

Abstract translation: 提供了一种用于显示器的驱动装置。 用于显示器的驱动装置包括参考电压发生器，数模转换器和输出单元。 参考电压发生器产生多个参考电压，并且接收两个相邻参考电压之间的差值，并产生多个子参考电压。 数模转换器选择参考电压之一并输出所选择的参考电压作为第一模拟信号。 数模转换器选择一个子参考电压，并输出所选择的参考电压作为第二模拟信号。 输出单元通过加法或减法处理第一和第二模拟信号以进行输出。

公开(公告)号：US07719497B2

公开(公告)日：2010-05-18

申请号：US11633984

申请日：2006-12-04

Applicant: Gyu Hyeong Cho ,  Sang-kyung Kim ,  Young-suk Son ,  Yong-joon Jeon ,  Jin-yong Jeon ,  Gun-ho Lee

Inventor： Gyu Hyeong Cho ,  Sang-kyung Kim ,  Young-suk Son ,  Yong-joon Jeon ,  Jin-yong Jeon ,  Gun-ho Lee

IPC: G09G3/32

CPC classification number: G09G3/3241 ,  G09G3/3233 ,  G09G3/325 ,  G09G3/3283 ,  G09G2300/0408 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0295 ,  G09G2320/043

Abstract: A current feedback-type AMOLED driving circuit. The current feedback-type AMOLED driving circuit includes a plurality of pixel circuits each having a data terminal for receiving a pixel current command, and a sense terminal for transmitting pixel current to a driver Integrated Circuit (IC), and a plurality of data lines provided such that a single data line is provided for a single column formed by a plurality of pixel circuits, thus data terminals of the pixel circuits, forming the column, are connected to the data line. In the AMOLED driving circuit, two columns are paired, sense terminals of pixel circuits, forming a first column of the two columns, are connected to a data line for a second column, and sense terminals of pixel circuits, forming the second column, are connected to the data line for the first column. The AMOLED driving circuit is operated such that, when the first column is driven, the data line for the second column is used as a current feedback line for the first column, and when the second column is driven, the data line for the first column is used as a current feedback line for the second column. Accordingly, the number of pads of the driver IC is limited to one per column, and price competitiveness of the driver IC is improved.

Abstract translation: 电流反馈型AMOLED驱动电路。 电流反馈型AMOLED驱动电路包括多个像素电路，每个像素电路都具有用于接收像素电流命令的数据端子，以及用于向驱动器集成电路（IC）传输像素电流的检测端子，以及多条数据线 使得为由多个像素电路形成的单列提供单个数据线，因此形成列的像素电路的数据端子连接到数据线。 在AMOLED驱动电路中，两列成对，形成第二列的第一列的像素电路的检测端子连接到第二列的数据线，形成第二列的像素电路的检测端子是 连接到第一列的数据行。 操作AMOLED驱动电路，使得当驱动第一列时，将第二列的数据线用作第一列的电流反馈线，并且当第二列被驱动时，用于第一列的数据线 用作第二列的电流反馈线。 因此，驱动器IC的焊盘的数量被限制为每列一个，并且提高了驱动器IC的价格竞争力。

公开(公告)号：US20090051676A1

公开(公告)日：2009-02-26

申请号：US11930888

申请日：2007-10-31

Applicant: Gyu Hyeong Cho ,  Hyung-Min Lee ,  Young-Suk Son ,  Yong-Joon Jeon ,  Jin Yong Jeon ,  Seung-Chui Jung

Inventor： Gyu Hyeong Cho ,  Hyung-Min Lee ,  Young-Suk Son ,  Yong-Joon Jeon ,  Jin Yong Jeon ,  Seung-Chui Jung

IPC: G09G5/00 ,  H03M1/66

CPC classification number: H03M1/002 ,  G09G3/20 ,  G09G2310/027 ,  G09G2320/0276 ,  G09G2330/028 ,  H03M1/765

Abstract: A driving apparatus for a display is provided. The driving apparatus for a display comprises: a digital/analog converter for receiving an input voltage lower than a source voltage used in a buffer amplifier for output driving, generating a plurality of reference voltages, and selecting a reference voltage corresponding to an M (M is a positive integer) bit data signal; and an amplifier for amplifying the reference voltage selected by the digital/analog converter. Therefore, a circuit area and power consumption of the driving apparatus for a display can be minimized.

Abstract translation: 提供了一种用于显示器的驱动装置。 用于显示器的驱动装置包括：数字/模拟转换器，用于接收低于用于输出驱动的缓冲放大器中使用的源电压的输入电压，产生多个参考电压，以及选择对应于M（M 是一个正整数）位数据信号; 以及用于放大由数字/模拟转换器选择的参考电压的放大器。 因此，可以使用于显示器的驱动装置的电路面积和功耗最小化。

公开(公告)号：US20090051575A1

公开(公告)日：2009-02-26

申请号：US11930850

申请日：2007-10-31

Applicant: Hyung-Min Lee ,  Gyu Hyeong Cho ,  Young-Suk Son ,  Yong-Joon Jeon ,  Jin Yong Jeon ,  Seung-Chul Jung

Inventor： Hyung-Min Lee ,  Gyu Hyeong Cho ,  Young-Suk Son ,  Yong-Joon Jeon ,  Jin Yong Jeon ,  Seung-Chul Jung

IPC: H03M1/66

CPC classification number: H03M1/682 ,  G09G3/20 ,  G09G2310/027 ,  G09G2320/0276 ,  G09G2330/028 ,  H03M1/765

Abstract: A driving apparatus for a display is provided. The driving apparatus for a display comprises a reference voltage generator, a digital-to-analog converter, and an output unit. The reference voltage generator generates a plurality of reference voltages, and receives a difference value between two adjacent reference voltages and generates a plurality of sub reference voltages. The digital-to-analog converter selects one of the reference voltages and outputs the selected reference voltage as a first analog signal. The digital-to-analog converter selects one of the sub reference voltages and outputs the selected reference voltage as a second analog signal. The output unit processes, by addition or subtraction, the first and second analog signals for output.

Abstract translation: 提供了一种用于显示器的驱动装置。 用于显示器的驱动装置包括参考电压发生器，数模转换器和输出单元。 参考电压发生器产生多个参考电压，并且接收两个相邻参考电压之间的差值，并产生多个子参考电压。 数模转换器选择参考电压之一并输出所选择的参考电压作为第一模拟信号。 数模转换器选择一个子参考电压，并输出所选择的参考电压作为第二模拟信号。 输出单元通过加法或减法处理第一和第二模拟信号以进行输出。