US 12,205,518 B2
Power voltage generator, driver IC, and display device
Hyunchang Kim, Yongin-si (KR); and Se-Byung Chae, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Oct. 4, 2023, as Appl. No. 18/376,468.
Claims priority of application No. 10-2022-0164314 (KR), filed on Nov. 30, 2022.
Prior Publication US 2024/0177648 A1, May 30, 2024
Int. Cl. G09G 3/30 (2006.01); G05F 1/46 (2006.01); G09G 3/20 (2006.01)
CPC G09G 3/2096 (2013.01) [G05F 1/46 (2013.01); G09G 3/20 (2013.01); G09G 2310/0291 (2013.01); G09G 2320/0673 (2013.01); G09G 2330/028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power voltage generator comprising:
an analog reference voltage generator configured to generate an analog reference voltage based on a first input voltage;
a resistance string configured to generate distribution voltages by performing voltage distribution on the analog reference voltage;
a decoding unit configured to generate reference voltages by decoding the distribution voltages;
a regulator unit configured to generate driving voltages based on the reference voltages and supply at least one of the driving voltages to a gamma reference voltage generator to generate a gamma reference voltage.