US 11,749,201 B2
Display device, and circuit and method for acquiring voltages
Taejin Kim, Beijing (CN); and Wenchao Bao, Beijing (CN)
Assigned to HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD, Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/416,561
Filed by HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Bejing (CN)
PCT Filed Oct. 28, 2020, PCT No. PCT/CN2020/124498
§ 371(c)(1), (2) Date Jun. 21, 2021,
PCT Pub. No. WO2022/087909, PCT Pub. Date May 5, 2022.
Prior Publication US 2022/0328006 A1, Oct. 13, 2022
Int. Cl. G09G 3/3258 (2016.01); G09G 3/3233 (2016.01)
CPC G09G 3/3258 (2013.01) [G09G 3/3233 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/029 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0295 (2013.01); G09G 2320/043 (2013.01); G09G 2320/045 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel comprising a plurality of sub-pixels and a plurality of sensing lines, each of the sub-pixel being connected to one of the sensing lines;
a reference voltage providing circuit configured to provide a reference voltage, wherein a value of the reference voltage is a middle value of an upper limit and a lower limit of a measurement range of the sampling circuit;
a sampling circuit, electrically connected to the sensing lines and the reference voltage providing circuit, respectively, and configured to acquire a voltage on each sensing line to obtain a first sampling value, and acquire the reference voltage provided by the reference voltage providing circuit to obtain a second sampling value; and
a processing circuit, electrically connected to the sampling circuit, and configured to correct the first sampling value based on the second sampling value and the reference voltage.