US 11,942,030 B1
Source driver, display device or electronic device including source driver, and method of driving the same
Hae Kwan Seo, Yongin-si (KR); Bon Seog Gu, Yongin-si (KR); Jin Young Roh, Yongin-si (KR); and Jae Keun Lim, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Apr. 19, 2023, as Appl. No. 18/303,396.
Claims priority of application No. 10-2022-0123806 (KR), filed on Sep. 28, 2022.
Int. Cl. G09G 3/32 (2016.01); G09G 3/20 (2006.01)
CPC G09G 3/32 (2013.01) [G09G 3/2096 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0202 (2013.01); G09G 2310/027 (2013.01); G09G 2310/0291 (2013.01); G09G 2310/0297 (2013.01); G09G 2310/08 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A source driver, comprising:
a digital-to-analog converter configured to convert a signal corresponding to a first color and a signal corresponding to a second color included in digital image data received from outside of the source driver into a first color data voltage and a second color data voltage, which are analog voltages, respectively;
an output buffer unit including a first output buffer configured to alternately output the first color data voltage and the second color data voltage during one horizontal period among a plurality of horizontal periods; and
a controller configured to control the digital-to-analog converter and the first output buffer to alternately output the first color data voltage and the second color data voltage corresponding to each horizontal period among the plurality of horizontal periods for each horizontal period,
wherein the controller controls the first output buffer such that the second color data voltage is output after the first color data voltage is first output during a first horizontal period among the plurality of horizontal periods, and the first color data voltage is output after the second color data voltage is first output during a second horizontal period among the plurality of horizontal periods,
wherein the second horizontal period is subsequent to the first horizontal period.