US 12,334,017 B2
Method and apparatus for storing non-volatile display pixel data
Younghyun Kim, Ansan-si (KR); Seoungmin Park, Ansan-si (KR); and Yonggyeong Lee, Ansan-si (KR)
Assigned to INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS, Ansan-si (KR)
Filed by INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS, Ansan-si (KR)
Filed on Aug. 23, 2024, as Appl. No. 18/814,219.
Claims priority of application No. 10-2023-0126142 (KR), filed on Sep. 21, 2023.
Prior Publication US 2025/0104628 A1, Mar. 27, 2025
Int. Cl. G09G 3/3233 (2016.01); G09G 3/32 (2016.01); H10B 43/35 (2023.01); H10K 59/121 (2023.01)
CPC G09G 3/3233 (2013.01) [G09G 3/32 (2013.01); H10B 43/35 (2023.02); H10K 59/1213 (2023.02); G09G 2300/0814 (2013.01); G09G 2300/0847 (2013.01); G09G 2310/0262 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0223 (2013.01); G09G 2330/021 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A display pixel that has a memory function, comprising:
a switching thin film transistor (TFT) configured to control whether the pixel is driven;
a charge trapping TFT (CTTFT) configured to control a pixel driving current and perform a memory function;
a storage capacitor configured to maintain a voltage applied based on the switching TFT;
a first light-emitting light source configured to emit light through a current applied based on the CTTFT; and
a second light-emitting light source configured to emit light to erase data based on the memory function of the CTTFT.