Invention Grant
- Patent Title: Light emitting display device
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Application No.: US18338856Application Date: 2023-06-21
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Publication No.: US12148364B2Publication Date: 2024-11-19
- Inventor: Li-Chang Yang , Yi-Sheng Lin
- Applicant: MACROBLOCK, INC.
- Applicant Address: TW Hsinchu
- Assignee: MACROBLOCK, INC.
- Current Assignee: MACROBLOCK, INC.
- Current Assignee Address: TW Hsinchu
- Agency: Akerman LLP
- Agent Peter A. Chiabotti
- Priority: TW111132111 20220825,TW112100082 20230103
- Main IPC: G09G3/32
- IPC: G09G3/32 ; G09G3/20 ; G09G3/3241 ; G09G3/3266

Abstract:
A light emitting display device includes a substrate, a drive power circuit, a gate circuit unit, multiple LEDs and a power switch unit. The power switch unit includes multiple first transistor switches and at least one second transistor switch that cooperatively control current flows through the LEDs. The first transistor switches are respectively connected to first terminals of the LEDs. The at least one second transistor switch is connected to second terminals of the LEDs. The first transistor switches are further connected to the drive power circuit to receive multiple drive currents, and are further connected to the gate circuit unit to receive a timing input. The at least one second transistor switch is further connected to the gate circuit unit to receive a timing input. The light emitting display device can have reduced parasitic capacitance effect, and thus reduced power consumption and have improved display quality.
Public/Granted literature
- US20240071294A1 LIGHT EMITTING DISPLAY DEVICE Public/Granted day:2024-02-29
Information query
IPC分类: