公开(公告)号：US20150187313A1

公开(公告)日：2015-07-02

申请号：US14577026

申请日：2014-12-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyunjae LEE

IPC: G09G3/36

CPC classification number: G09G3/3674 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2310/0289

Abstract: Disclosed is a display device that comprises: a display panel; a level shifter shifting a start pulse, an initialization pulse, and N (N is an integer equal to or greater than 2)-phase shift clocks to a predetermined voltage; and a gate shift register comprising multiple stages respectively connected to scan lines of the display panel and shifting the start pulse in response to the N-phase shift clocks within a driving period defined by the start pulse to sequentially output a scan pulse, wherein the stages are simultaneously reset in response to the initialization pulse and the N-phase shift clocks within an initialization period preceding the driving period.

Abstract translation: 公开了一种显示装置，包括：显示面板; 电平移位器将起始脉冲，初始化脉冲和N（N是等于或大于2的整数）相移位时钟移位到预定电压; 以及门移位寄存器，包括分别连接到显示面板的扫描线的多个级，并响应于由起始脉冲限定的驱动周期内的N相移位时钟移位起始脉冲，以顺序地输出扫描脉冲，其中， 响应于在驱动周期之前的初始化周期内的初始化脉冲和N相移位时钟同时复位。

公开(公告)号：US20240404477A1

公开(公告)日：2024-12-05

申请号：US18801196

申请日：2024-08-12

Applicant: LG Display Co., Ltd.

Inventor： Wonsuk LEE ,  Hyunjae LEE

IPC: G09G3/3275 ,  G09G3/20 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

Abstract: Discussed is a display device having a display panel including a first display area in which sub-pixels are arranged and a second display area in which the sub-pixels are not arranged in at least a portion, a gate driver that supplies at least one gate signal to the first display area and the second display area, and at least one dummy gate line disposed over the second display area, to which no sub-pixels are connected.

公开(公告)号：US20220343863A1

公开(公告)日：2022-10-27

申请号：US17863230

申请日：2022-07-12

Applicant: LG DISPLAY CO., LTD.

Inventor： Wonsuk LEE ,  Hyunjae LEE

IPC: G09G3/3275 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/20

Abstract: Discussed is a display device including a display panel including first and second display areas that differ in the number of sub-pixels per unit area, a data driver that generates data voltages, and supplies the data voltages to the sub-pixels in the corresponding areas, and a power supply part that generates first display area high-potential power for the first display area and second display area high-potential power for the second display area, and supplies the first and second display area high-potential powers to the corresponding display areas. Each of the sub-pixels includes a switching transistor connected to a gate line and a data line, and a pixel circuit including a driving transistor that is turned on in response to a data voltage stored in a storage capacitor, and supplies a driving current to an organic light-emitting diode positioned between a first power line and a second power line.

公开(公告)号：US20200243010A1

公开(公告)日：2020-07-30

申请号：US16850832

申请日：2020-04-16

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyunjae LEE ,  Taeyoung PARK ,  Dongjun CHOI ,  Dongsup SHIM ,  Ohgun KWON

IPC: G09G3/3233

Abstract: An organic light emitting display includes a display panel including a plurality of pixels, each pixel among the plurality of pixels including an organic light emitting diode (OLED) connected between a first potential driving power having an initial value and a second potential driving power, and a driving thin film transistor (TFT) connected between the first potential driving power and the second potential driving power; a driver integrated circuit (IC) configured to drive the display panel; a power IC configured to apply the first potential driving power to the display panel; and a sensing unit configured to sense changes in driving characteristics of the display panel each time the first potential driving power varies from an initial value of the first potential driving power in a state where the initial value of the first potential driving power and a test pattern are applied to the display panel.

公开(公告)号：US20160189635A1

公开(公告)日：2016-06-30

申请号：US14975093

申请日：2015-12-18

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyunjae LEE ,  Taeyoung PARK ,  Dongsup SHIM

IPC: G09G3/34 ,  G09G3/20 ,  G09G3/32

CPC classification number: G09G3/3291 ,  G09G3/2003 ,  G09G3/3233 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2320/0666 ,  G09G2320/0673 ,  G09G2320/08 ,  G09G2330/028

Abstract: An organic light emitting diode display includes pixels in which an amount of current flowing in an organic light emitting diode of each pixel is determined depending on a difference between a data voltage and a reference voltage, a control signal generator differently generating a screen brightness control signal depending on a driving mode, a register adjusting unit independently adjusting a reference voltage register value and a gamma register value at each of red (R), green (G), and blue (B) pixels depending on the screen brightness control signal, a reference voltage generator generating the reference voltage of each of the R, G, and B colors based on the reference voltage register value, and a data voltage generator generating the data voltage of each of the R, G, and B colors based on the gamma register value.

Abstract translation: 有机发光二极管显示器包括像素，其中根据数据电压和参考电压之间的差确定每个像素的有机发光二极管中流动的电流量，不同地生成屏幕亮度控制信号的控制信号发生器 根据驱动模式，根据屏幕亮度控制信号，在红色（R），绿色（G）和蓝色（B）像素中的每一个处独立地调整参考电压寄存器值的寄存器调整单元和伽马寄存器值， 参考电压发生器，其基于参考电压寄存器值产生R，G和B颜色中的每一个的参考电压，以及数据电压发生器，其基于伽马产生R，G和B颜色中的每一个的数据电压 寄存器值。

公开(公告)号：US20200152134A1

公开(公告)日：2020-05-14

申请号：US16665918

申请日：2019-10-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Wonsuk LEE ,  Hyunjae LEE

IPC: G09G3/3275 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/20

Abstract: A display device can include a display panel comprising a first display area and a second display area that differ in the number of sub-pixels per unit area, a gamma part that generates a first area gamma voltage applied to the first display area and a second area gamma voltage applied to the second display area, and a data driver that generates data voltages by applying the first area gamma voltage to video data displayed in the first display area and applying the second area gamma voltage to video data displayed in the second display area and supplies the data voltages to the sub-pixels in the corresponding areas.

公开(公告)号：US20160171929A1

公开(公告)日：2016-06-16

申请号：US14964093

申请日：2015-12-09

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyunjae LEE ,  Taeyoung PARK ,  Dongjun CHOI ,  Dongsup SHIM ,  Ohgun KWON

IPC: G09G3/32

Abstract: A method for driving an organic light emitting display according to an embodiment includes applying an initial value of a high potential driving power and a test pattern to a display panel and sensing changes in driving characteristics of the display panel while varying a voltage level of the high potential driving power from the initial value, deciding whether or not a sensed driving characteristic value of the display panel satisfies a predetermined condition, setting a voltage level of the high potential driving power obtained when the sensed driving characteristic value satisfies the predetermined condition, as a reference value of the high potential driving power, and adding a voltage margin to the reference value of the high potential driving power to determine a final value of the high potential driving power, and driving the display panel using the final value of the high potential driving power.

Abstract translation: 根据实施例的用于驱动有机发光显示器的方法包括将高电位驱动功率和测试图案的初始值施加到显示面板，并且在改变高电平的电压的同时感测显示面板的驱动特性的变化 从所述初始值开始所述潜在驱动功率，判定所检测到的所述显示面板的驱动特性值是否满足预定条件，将所感测到的所述驱动特性值满足所述规定条件时所获得的高电位驱动电力的电压设定为 高电位驱动电源的参考值，并将电压余量加到高电位驱动电源的基准值上，以确定高电位驱动电源的最终值，并且使用高电位驱动的最终值来驱动显示面板 功率。

公开(公告)号：US20130082910A1

公开(公告)日：2013-04-04

申请号：US13629274

申请日：2012-09-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyunjae LEE

IPC: G09G3/32

CPC classification number: G09G3/3208 ,  G09G2320/02 ,  G09G2330/021 ,  G09G2330/025 ,  G09G2330/028 ,  G09G2330/04 ,  G09G2340/0435

Abstract: An organic light emitting diode (OLED) display includes a display panel including data lines, scan lines crossing the data lines, and pixels which each include an organic light emitting diode and are arranged in a matrix form, a power generator which is enabled in a normal mode to generate a high potential power voltage for driving the display panel and is disabled in a low power mode, and a panel driving circuit which drives the data lines and the scan lines, disables the power generator in the low power mode to cut off an output of the power generator, and supplies an internal power less than the high potential power voltage to the display panel to reduce the high potential power voltage in the low power mode.

Abstract translation: 有机发光二极管（OLED）显示器包括：显示面板，包括数据线，与数据线交叉的扫描线，以及每个包括有机发光二极管并且以矩阵形式排列的像素;功率发生器， 以产生用于驱动显示面板的高电位电压并且在低功率模式下被禁用，并且驱动数据线和扫描线的面板驱动电路禁用低功率模式中的发电机切断 发电机的输出，并且向显示面板提供小于高电位电压的内部功率以降低低功率模式中的高电位电压。