US 11,948,497 B2
Display device and driving method thereof
Chih-Hao Lin, Hsinchu (TW); Chien-Nan Yeh, Hsinchu (TW); Jo-Hsiang Chen, Hsinchu (TW); and Shih-Lun Lai, Hsinchu (TW)
Assigned to Lextar Electronics Corporation, Hsinchu (TW)
Filed by Lextar Electronics Corporation, Hsinchu (TW)
Filed on Aug. 30, 2021, as Appl. No. 17/446,459.
Claims priority of application No. 202110646060.0 (CN), filed on Jun. 10, 2021.
Prior Publication US 2022/0398973 A1, Dec. 15, 2022
Int. Cl. G09G 3/20 (2006.01); C09K 11/02 (2006.01); G09G 3/32 (2016.01); H10K 59/35 (2023.01); H10K 59/38 (2023.01)
CPC G09G 3/32 (2013.01) [G09G 3/2014 (2013.01); G09G 3/2074 (2013.01); G09G 2320/0242 (2013.01); G09G 2330/12 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A display device, wherein the display device comprises a plurality of sub-pixels, the sub-pixels comprising:
a first sub-pixel, wherein the first sub-pixel comprising:
a first light emitting element, with a first peak wavelength; and
a first control circuit, coupled with the first light emitting element, wherein the first control circuit is configured to provide a first driving current with a first pulse amplitude to the first light emitting element, wherein the first pulse amplitude is set to adjust the first peak wavelength of the first light emitting element toward a target wavelength; and
a second sub-pixel, wherein the first sub-pixel and the second sub-pixel are the same color sub-pixels, wherein the second sub-pixel comprising:
a second light emitting element, with a second peak wavelength different from the first peak wavelength; and
a second control circuit, coupled with the second light emitting element, wherein the second control circuit is configured to provide a second driving current with a second pulse amplitude to the second light emitting element, wherein the second pulse amplitude is set to be different from the first pulse amplitude to adjust the second peak wavelength of the second light emitting element toward the target wavelength, such that both of the first light emitting element and the second light emitting element emit at the target wavelength or a color point range.