公开(公告)号：US20160148564A1

公开(公告)日：2016-05-26

申请号：US14675228

申请日：2015-03-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Cheolmin Kim ,  Hyungryul Kang ,  Jungyu Lee ,  Sebyung Chae

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0861 ,  G09G2320/0295 ,  G09G2320/043

Abstract: An organic light-emitting display apparatus includes a plurality of pixels, each including: an organic light emitting diode (OLED); a driving transistor; and a first node therebetween; a sensor for sensing a first current from the driving transistor when a first reference voltage is applied to the first node and sensing a second current from the driving transistor when a second reference voltage is applied to the first node, when a first source data signal, corresponding to a first gray level, is transferred to a corresponding one of the pixels; a driving current determiner for generating characteristic information of the driving transistor based on the first and the second currents and determining a driving current of the driving transistor, corresponding to the first gray level, based on the characteristic information of the driving transistor and current-voltage information of the OLED, which is stored in the memory.

Abstract translation: 有机发光显示装置包括多个像素，每个像素包括：有机发光二极管（OLED）; 一个驱动晶体管; 和它们之间的第一节点; 当第一参考电压被施加到第一节点并且当向第一节点施加第二参考电压时感测来自驱动晶体管的第二电流的传感器，当第一源数据信号， 对应于第一灰度级，被传送到相应的像素之一; 驱动电流确定器，用于基于第一和第二电流产生驱动晶体管的特性信息，并且基于驱动晶体管的特性信息和电流电压确定对应于第一灰度级的驱动晶体管的驱动电流 存储在存储器中的OLED的信息。

公开(公告)号：US12266306B2

公开(公告)日：2025-04-01

申请号：US18364724

申请日：2023-08-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung-Woo Kim ,  Cheolmin Kim ,  Sun-Koo Kang

IPC: G09G3/3233

Abstract: A display device includes a display panel including pixels connected to emission lines, a controller configured to receive a control signal, and to generate an emission start signal, a first emission clock signal and a second emission clock signal, and an emission driver configured to provide emission signals to the pixels through the emission lines in response to the emission start signal, the first emission clock signal and the second emission clock signal. The controller is further configured to determine an off period ratio for the pixels in units of two or more frame periods in response to the dimming signal. The control signal may be a dimming signal, a low power mode signal, or another type of signal indicative of operation of the display device.

公开(公告)号：US09812062B2

公开(公告)日：2017-11-07

申请号：US14735484

申请日：2015-06-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyungryul Kang ,  Cheolmin Kim

IPC: G09G3/32 ,  G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2300/043 ,  G09G2300/0871 ,  G09G2300/0876 ,  G09G2310/0216 ,  G09G2320/045

Abstract: A display apparatus includes pixels connected to scan lines, data lines, and emission control lines. Each include includes an organic light-emitting diode (OLED), a first transistor to transfer driving current to the OLED based on a data signal, a second transistor to transfer the data signal to the first transistor based on a first scan signal having a gate-on voltage level during a data writing period, a first capacitor connected between a gate electrode of the first transistor and a first power source, and a second capacitor connected between a drain electrode of the first transistor and the first power source.

公开(公告)号：US10157569B2

公开(公告)日：2018-12-18

申请号：US14675228

申请日：2015-03-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Cheolmin Kim ,  Hyungryul Kang ,  Jungyu Lee ,  Sebyung Chae

IPC: G09G3/3233

Abstract: An organic light-emitting display apparatus includes a plurality of pixels, each including: an organic light emitting diode (OLED); a driving transistor; and a first node therebetween; a sensor for sensing a first current from the driving transistor when a first reference voltage is applied to the first node and sensing a second current from the driving transistor when a second reference voltage is applied to the first node, when a first source data signal, corresponding to a first gray level, is transferred to a corresponding one of the pixels; a driving current determiner for generating characteristic information of the driving transistor based on the first and the second currents and determining a driving current of the driving transistor, corresponding to the first gray level, based on the characteristic information of the driving transistor and current-voltage information of the OLED, which is stored in the memory.

公开(公告)号：US10026359B2

公开(公告)日：2018-07-17

申请号：US14849248

申请日：2015-09-09

Applicant: Samsung Display Co., Ltd.

Inventor： Sebyung Chae ,  Hyungryul Kang ,  Cheolmin Kim

IPC: G09G3/32 ,  G09G3/3258

Abstract: A gamma voltage generator, method of generating gamma voltage, and an OLED display including the generator are disclosed. In one aspect, the generator includes a gamma reference voltage selector configured to receive a gamma reference voltage from a voltage generator and output selected first to third gamma voltages having values substantially equal to or less than the gamma reference voltage. The generator also includes a medium gamma voltage selector configured to receive the first to third gamma voltages from the gamma reference voltage selector and select and output a plurality of medium gamma voltages based at least in part on the first to third gamma voltages. The generator further includes a medium gamma voltage calculator configured to output a selection signal corresponding to the calculated low gamma voltage to the medium gamma voltage selector.

公开(公告)号：US20160133192A1

公开(公告)日：2016-05-12

申请号：US14849248

申请日：2015-09-09

Applicant: Samsung Display Co., Ltd.

Inventor： Sebyung Chae ,  Hyungryul Kang ,  Cheolmin Kim

IPC: G09G3/32

CPC classification number: G09G3/3258 ,  G09G2320/0276 ,  G09G2320/0673 ,  G09G2360/145

Abstract: A gamma voltage generator, method of generating gamma voltage, and an OLED display including the generator are disclosed. In one aspect, the generator includes a gamma reference voltage selector configured to receive a gamma reference voltage from a voltage generator and output selected first to third gamma voltages having values substantially equal to or less than the gamma reference voltage. The generator also includes a medium gamma voltage selector configured to receive the first to third gamma voltages from the gamma reference voltage selector and select and output a plurality of medium gamma voltages based at least in part on the first to third gamma voltages. The generator further includes a medium gamma voltage calculator configured to output a selection signal corresponding to the calculated low gamma voltage to the medium gamma voltage selector.

Abstract translation: 公开了伽马电压发生器，产生伽马电压的方法和包括发生器的OLED显示器。 在一个方面，发电机包括伽马参考电压选择器，其被配置为从电压发生器接收伽马参考电压并输出具有基本上等于或小于伽马参考电压的值的所选择的第一至第三伽马电压。 发生器还包括中等伽玛电压选择器，其被配置为从伽马参考电压选择器接收第一至第三伽马电压，并且至少部分地基于第一至第三伽马电压选择并输出多个中等伽玛电压。 发生器还包括中等伽玛电压计算器，其被配置为将对应于所计算的低伽马电压的选择信号输出到中等伽马电压选择器。