US 12,008,966 B2
Display device having a voltage generator with digital-analog converter for varying output power voltage
Dae-Sik Lee, Yongin-si (KR); Siduk Sung, Yongin-si (KR); and Songyi Han, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jan. 20, 2023, as Appl. No. 18/099,451.
Claims priority of application No. 10-2022-0050566 (KR), filed on Apr. 25, 2022.
Prior Publication US 2023/0343297 A1, Oct. 26, 2023
Int. Cl. G09G 3/3275 (2016.01)
CPC G09G 3/3275 (2013.01) [G09G 2310/027 (2013.01); G09G 2330/021 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel which displays an image; and
a control circuit board connected to the display panel,
wherein the control circuit board includes:
a controller which analyzes the image in real time and determines in real time a digital-type power voltage based on the image; and
a voltage generator which generates an analog-type power voltage based on the digital-type power voltage received from the controller,
wherein the voltage generator includes a digital-analog converter which converts the digital-type power voltage into the analog-type power voltage and outputs the analog-type power voltage, and
wherein the digital-analog converter includes:
a voltage range setting part which sets a voltage range in which the analog-type power voltage is determined; and
a conversion part which generates the analog-type power voltage within the voltage range, based on a digital signal of the digital-type power voltage.