Min Seok Choi

US Patent:

20230011187, Jan 12, 2023

Filed:

Jul 9, 2021

Appl. No.:

17/371892

Inventors:

- Menlo Park CA, US
Donghee Nam - San Jose CA, US
Alexander Klement - Kenmore WA, US
Min Hyuk Choi - San Jose CA, US

International Classification:

G09G 3/3258
G09G 3/3291
G02B 27/01

Abstract:

Embodiments relate to a display device including two or more sections of pixels in a display area powered by supply voltages in power rails. The display device also includes two or more power detection circuits connected to two or more locations along the power rails to detect local voltages at the locations. Depending on an image being display during a frame, the two or more sections of pixels may cause changes in local voltages at the two or more locations. The detected local voltages are provided to two or more voltage regulators, and the two or more voltage regulators update supply voltages provided to the power rails to compensate for the changes in the local voltages.

US Patent:

20200394971, Dec 17, 2020

Filed:

Aug 20, 2019

Appl. No.:

16/544952

Inventors:

- Menlo Park CA, US
Min Hyuk Choi - San Jose CA, US
Rui Zhang - Sunnyvale CA, US
Samuel Gosselin - San Francisco CA, US

International Classification:

G09G 3/34
G09G 3/36

Abstract:

The disclosed computer-implemented method may include determining a frame rate for a current frame, where the frame rate dictates the amount of time the current frame is to be presented on a display. The display may be a backlight that is powered for a specified amount of time as part of a duty cycle. The method may further include calculating a backlight duty cycle time for the current frame. The backlight duty cycle time may include a minimum amount of powered time plus an additional amount of powered time that is dependent on the frame rate for the current frame. The method may further generate a drive signal for the display using the calculated backlight duty cycle time and driving the display using the generated drive signal. Various other methods, systems, and computer-readable media are also disclosed.