Display Voltage Line Layout for Narrow-Bezel Light Uniformity
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Solution Overview
Problem
Existing display apparatuses face challenges in reducing the peripheral area (dead space) without adversely affecting the quality of light emitted from light-emitting diodes, as elements in the peripheral area can impact the display quality.
Innovation Solution
The display apparatus is designed with a substrate that includes a display area and a peripheral area, featuring a common voltage supply line with multiple input parts and voltage lines arranged in specific configurations to minimize the peripheral area while maintaining high-quality image display, utilizing different layers and connector arrangements for the voltage lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If elements are arranged in the peripheral area to reduce dead space, then the peripheral area is reduced, but the quality of light emitted from light-emitting diodes is adversely affected
Solution Approach 1:
The common voltage supply line is divided into multiple input parts (first, second, and third common voltage input parts) arranged at different locations in the peripheral area. This segmentation allows the voltage to be distributed through multiple paths, reducing the overall peripheral area required while maintaining stable voltage supply to light-emitting diodes, thus resolving the contradiction between reducing dead space and maintaining light emission quality.
Solution Approach 2:
The patent introduces a third common voltage input part positioned between the first and second common voltage input parts in the peripheral area. This additional dimension of voltage input arrangement optimizes the spatial distribution of voltage supply, reducing the peripheral area footprint while ensuring consistent voltage delivery to light-emitting diodes, thereby reducing dead space without compromising light quality.
2Area of moving object
If the display area increases, then the peripheral area should be reduced, but arranging elements in the peripheral area adversely affects light-emitting diode performance
Solution Approach 1:
By segmenting the common voltage supply into multiple input parts distributed across the peripheral area, the patent enables larger display areas without requiring excessive peripheral space. The segmented voltage supply structure maintains stable voltage delivery to light-emitting diodes even as the display area expands, thus resolving the contradiction between increasing display area and maintaining light emission quality.
Solution Approach 2:
The patent applies local quality by positioning the third common voltage input part specifically between the first and second common voltage input parts in the peripheral area. This localized optimization of voltage supply distribution ensures that light-emitting diodes receive stable voltage regardless of display area size, allowing maximum display area utilization while preserving light emission quality.
Data Source
AI summary
A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a common voltage supply line arranged in the peripheral area and including a first common voltage input part, a second common voltage input part, and a third common voltage input part between the first and second voltage input parts each arranged in a first edge of the display area, a first common voltage line extending from the third common voltage input part and crossing the display area in a first direction, a first data line extending in the first direction across the display area, a first data input line arranged in the peripheral area, and a first connection line connecting the first data input line to the first data line.