Display device

By employing an auxiliary wiring design that overlaps with the power supply voltage lines in the LED display device, the problem of uneven power supply voltage is solved, brightness uniformity is improved, power consumption is reduced, and more efficient signal transmission is achieved.

CN111933657BActive Publication Date: 2026-09-01SAMSUNG DISPLAY CO LTD
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Patent Information

Application Number
CN202010396664.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-05-13
Filing Date
2020-05-12
Publication Date
2026-09-01
Estimated Expiration
2040-05-12

AI Technical Summary

Technical Problem

In LED display devices, the resistance of the power supply lines causes uneven power supply voltage, which affects brightness uniformity and increases power consumption.

Method used

The design employs an auxiliary wiring layer that overlaps with the power supply voltage lines, connecting to the transistors and pixel electrodes through contact holes in the insulating layer, thereby reducing wiring resistance and voltage drop.

Benefits of technology

It improves display quality, reduces power supply voltage unevenness and power consumption, and increases signal transmission efficiency.

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Abstract

A display device is disclosed. The display device includes: a substrate including a display area and a non-display area surrounding the display area; a transistor located on the substrate; an insulating layer located on the transistor; a power supply voltage line located on the insulating layer and transmitting a power supply voltage; a data line located on the insulating layer and transmitting a data voltage; and auxiliary wiring located in the display area between the substrate and the power supply voltage line. The auxiliary wiring includes portions overlapping the power supply voltage line and portions overlapping the data line, and is electrically connected to the power supply voltage line.
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