US 12,249,273 B2
Display device and method of inspecting the same
Jung Hwan Hwang, Seongnam-si (KR); Hyun Joon Kim, Hwaseong-si (KR); Kye Uk Lee, Seoul (KR); Jun Ki Jeong, Yongin-si (KR); and Sang Jin Jeon, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Oct. 30, 2023, as Appl. No. 18/498,018.
Application 18/498,018 is a continuation of application No. 17/941,990, filed on Sep. 9, 2022, granted, now 11,804,172.
Claims priority of application No. 10-2021-0139198 (KR), filed on Oct. 19, 2021; and application No. 10-2022-0031708 (KR), filed on Mar. 14, 2022.
Prior Publication US 2024/0071299 A1, Feb. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2310/027 (2013.01); G09G 2310/0297 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
pulse amplitude modulation (PAM) data lines;
pulse width modulation (PWM) data lines;
a plurality of subpixels, each of the plurality of subpixels being connected to a corresponding one of the PWM data lines and a corresponding one of the PAM data lines;
a first PWM control line configured to receive a first PWM control signal;
a second PWM control line configured to receive a second PWM control signal;
a third PWM control line configured to receive a third PWM control signal;
a first power line configured to receive a first power supply voltage; and
a second demultiplexer (demux) unit configured to connect the PWM data lines to the first power line according to the first PWM control signal, the second PWM control signal, and the third PWM control signal.