US 12,148,364 B2
Light emitting display device
Li-Chang Yang, Hsinchu (TW); and Yi-Sheng Lin, Hsinchu (TW)
Assigned to MACROBLOCK, INC., Hsinchu (TW)
Filed by MACROBLOCK, INC., Hsinchu (TW)
Filed on Jun. 21, 2023, as Appl. No. 18/338,856.
Claims priority of application No. 111132111 (TW), filed on Aug. 25, 2022; and application No. 112100082 (TW), filed on Jan. 3, 2023.
Prior Publication US 2024/0071294 A1, Feb. 29, 2024
Int. Cl. G09G 3/32 (2016.01); G09G 3/20 (2006.01); G09G 3/3241 (2016.01); G09G 3/3266 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 3/2096 (2013.01); G09G 3/3241 (2013.01); G09G 3/3266 (2013.01); G09G 2300/0809 (2013.01); G09G 2310/0251 (2013.01); G09G 2330/021 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A light emitting display device comprising:
a substrate;
a drive power circuit disposed on said substrate, and including a plurality of power lines that extend along a first direction and that are arranged side by side along a second direction traverse to the first direction;
a gate circuit unit disposed on said substrate, and including a first gate circuit and a second gate circuit, said first gate circuit including a plurality of first gate lines that extend along the second direction and that are arranged side by side along the first direction, said second gate circuit including a plurality of second gate lines that extend along the second direction and that are arranged side by side along the first direction;
a plurality of light emitting diodes (LEDs) disposed on said substrate, and arranged in a matrix; and
a power switch unit including a plurality of first transistor switches and at least one second transistor switch that are directly formed on said substrate and that cooperatively control current flows through said LEDs, a total number of said first transistor switches being equal to a total number of said LEDs, drain terminals of said first transistor switches being directly connected to first terminals of said LEDs in a one-to-one relationship, and being not directly connected to said drive power circuit, said at least one second transistor switch being connected to second terminals of said LEDs;
wherein said first transistor switches are further connected to said drive power circuit to receive a plurality of drive currents, and are further connected to said first gate circuit to receive a timing input;
wherein said at least one second transistor switch is further connected to said second gate circuit to receive a timing input.