公开(公告)号：US11922869B2

公开(公告)日：2024-03-05

申请号：US17983462

申请日：2022-11-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sunghoon Bang ,  Seokgyu Ban ,  Dong-Ki Eun ,  Seungho Park ,  Wook Lee

IPC: G09G3/3225

CPC classification number: G09G3/3225 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2310/061 ,  G09G2320/0257 ,  G09G2320/0271 ,  G09G2320/041

Abstract: A display device including: a display panel including a plurality of pixels; a display panel driver configured to drive the display panel; a memory device configured to store a reference current-temperature model that is set for the display panel, a global offset of the display panel, which is calculated based on the reference current-temperature model in a manufacturing stage of the display panel, and a local offset of the display panel, which is calculated based on a characteristic difference between the pixels in the manufacturing stage; and a panel temperature determiner configured to measure sensing currents flowing through the pixels when a temperature sensing voltage is applied to the pixels, calculate correction sensing currents by applying the global offset and the local offset to the sensing currents, and determine temperatures of the pixels by substituting the correction sensing currents into the reference current-temperature model.

公开(公告)号：US11373593B2

公开(公告)日：2022-06-28

申请号：US16182995

申请日：2018-11-07

Applicant: Samsung Display Co., Ltd.

Inventor： Sunghoon Bang ,  Min-Seok Bae ,  Wooseok Han

IPC: G09G3/3233 ,  G09G3/20 ,  G09G3/3275

Abstract: A display device includes a display panel including a plurality of data lines, a plurality of gate lines, and a plurality of pixels and a compensating data generator configured to sense a sensing driving current of the pixel in an Nth frame and a target driving current of the pixel in an (N+M)th frame, and to calculate an over driving data that allows the sensing driving current to be the same with the target driving current by changing a data voltage of the Nth frame when a sensing image having a first grayscale in a (N−1)th frame and having a second grayscale in the Nth frame and the (N+M)th frame, where N is an integer greater than or equal to 2, and M is an integer greater than or equal to 1.

公开(公告)号：US11037498B2

公开(公告)日：2021-06-15

申请号：US16880655

申请日：2020-05-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hae-Kwan Seo ,  Wontae Kim ,  Sunghoon Bang ,  Taehoon Kim

IPC: G09G3/3258 ,  G09G3/3291

Abstract: A display apparatus includes a display panel, a power voltage generator, a gate driver and a data driver. The display panel includes first and second display areas, a first back gate signal applying line connected to at least one back gate electrode of at least one of a plurality of pixels in the first display area and a second back gate signal applying line connected to at least one back gate electrode of at least one of a plurality of pixels in the second display area. The power voltage generator is configured to output a first back gate signal to the first back gate signal applying line and a second back gate signal to the second back gate signal applying line. The gate driver is configured to output a gate signal to the display panel. The data driver is configured to output a data voltage to the display panel.