US 12,236,909 B2
Drive circuit of display panel, display device, and drive method of display panel
Seiichiro Jinta, Kanagawa (JP); and Takuya Naruta, Kanagawa (JP)
Assigned to SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Appl. No. 18/553,536
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
PCT Filed Feb. 22, 2022, PCT No. PCT/JP2022/007071
§ 371(c)(1), (2) Date Sep. 29, 2023,
PCT Pub. No. WO2022/219927, PCT Pub. Date Oct. 20, 2022.
Claims priority of application No. 2021-069820 (JP), filed on Apr. 16, 2021.
Prior Publication US 2024/0194157 A1, Jun. 13, 2024
Int. Cl. G09G 3/36 (2006.01); G03B 21/00 (2006.01); G03B 21/20 (2006.01)
CPC G09G 3/36 (2013.01) [G03B 21/006 (2013.01); G03B 21/2073 (2013.01); G09G 3/3614 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/046 (2013.01)] 15 Claims
OG exemplary drawing
 
15. A drive method, comprising:
in a display panel having a liquid crystal layer, wherein molecular characteristics of the liquid crystal layer are changed based a potential difference between a first electrode and a second electrode:
outputting a first signal for changing the potential difference based on an input pixel signal;
outputting, as a second signal, at least one of
a signal for changing the potential difference at a predetermined specific cycle, or
a signal for maintaining the potential difference in a direction of reducing ions staying between the first electrode and the second electrode, for a specific time; and
alternately outputting the first signal and the second signal in a turning-on period of light emitted to the liquid crystal layer.