US 12,249,266 B2
Driver configured to drive a liquid crystal panel with a static drive system and electro-optic device including driver
Kazuaki Tanaka, Nagano (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Jun. 28, 2023, as Appl. No. 18/343,111.
Claims priority of application No. 2022-106891 (JP), filed on Jul. 1, 2022.
Prior Publication US 2024/0005834 A1, Jan. 4, 2024
Int. Cl. G09G 3/20 (2006.01); G09G 3/34 (2006.01); G09G 3/36 (2006.01)
CPC G09G 3/2014 (2013.01) [G09G 3/2096 (2013.01); G09G 3/3406 (2013.01); G09G 3/344 (2013.01); G09G 3/36 (2013.01); G09G 2310/0264 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A driver configured to drive a liquid crystal panel with a static drive system, comprising:
a first terminal group to be coupled to a first segment electrode group of the liquid crystal panel;
a second terminal group to be coupled to a second segment electrode group of the liquid crystal panel;
a control circuit configured to output a first pulse width signal group including a plurality of pulse width signals corresponding to a plurality of gray levels, and a second pulse width signal group which includes a plurality of pulse width signals corresponding to the plurality of gray levels, and which is different in correspondence between gray levels and pulse widths from the first pulse width signal group;
a first drive circuit configured to output a first segment drive signal group based on pulse width signals selected from the first pulse width signal group in accordance with gradation data for setting the plurality of gray levels, to the first terminal group; and
a second drive circuit configured to output a second segment drive signal group based on pulse width signals selected from the second pulse width signal group in accordance with the gradation data, to the second terminal group.