公开(公告)号：US11210976B2

公开(公告)日：2021-12-28

申请号：US16791498

申请日：2020-02-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungmoon Kim

IPC: G09G3/00 ,  G09G3/3291

Abstract: In a method of sensing a threshold voltage of a driving transistor in a pixel included in a display panel, a first initial level of a data voltage, a level of an initialization voltage and a second initial level of a reference voltage that are used for sensing the threshold voltage of the driving transistor are set. The reference voltage is different from the initialization voltage. The threshold voltage of the driving transistor is sensed by applying the initialization voltage, the data voltage having the first initial level and the reference voltage having the second initial level to the driving transistor. When a predetermined condition is not satisfied by variation in the threshold voltage of the driving transistor, at least one of the first initial level and the second initial level is changed. The threshold voltage of the driving transistor is sensed again based on a result of changing at least one of the first initial level and the second initial level.

公开(公告)号：US10964257B2

公开(公告)日：2021-03-30

申请号：US16774319

申请日：2020-01-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungmoon Kim

IPC: G09G3/3225 ,  G09G3/3275

Abstract: A display device includes a display panel including pixels arranged in rows and columns, a gate driver connected to pixels in the rows through first gate lines and second gate lines, a data driver connected to the pixels in the columns through data lines, a sensor connected to the pixels in the columns through sensing lines, a memory to store a look-up table, and a timing controller to control the gate driver and the data driver to adjust the brightnesses of the pixels through the first gate lines and the data lines and to control the gate driver and the sensor to perform a sensing operation of sensing the brightnesses of the pixels through the second gate lines and the sensing lines. The timing controller reads the look-up table from the memory and adjusts a sensing period of the sensing operation based on the look-up table.