US 12,236,916 B2
Drive circuit and display device for writing of signal lines
Naoto Munemura, Kanagawa (JP); and Michiru Senda, Kanagawa (JP)
Assigned to SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Appl. No. 18/258,044
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
PCT Filed Dec. 15, 2021, PCT No. PCT/JP2021/046250
§ 371(c)(1), (2) Date Jun. 16, 2023,
PCT Pub. No. WO2022/138372, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 2020-215586 (JP), filed on Dec. 24, 2020.
Prior Publication US 2024/0038194 A1, Feb. 1, 2024
Int. Cl. G09G 3/36 (2006.01); G02F 1/133 (2006.01); G02F 1/1362 (2006.01)
CPC G09G 3/3685 (2013.01) [G02F 1/13306 (2013.01); G02F 1/136277 (2013.01); G09G 2310/08 (2013.01); G09G 2330/028 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A drive circuit, comprising:
a gradation voltage generation unit configured to generate a plurality of gradation voltages that is supplied to a first signal line; and
a voltage selector configured to supply:
a first gradation voltage of the plurality of gradation voltages, to the first signal line, in a first frame period of two consecutive frame periods,
wherein the first gradation voltage has a same voltage level as a specific gradation voltage;
and
a second gradation voltage of the plurality of gradation voltages, to the first signal line, in a second frame period of the two consecutive frame periods,
wherein the second gradation voltage is close to the specific gradation voltage.