Display Panel Initialization Line Grouping for Hole-Region Uniformity
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Solution Overview
Problem
The formation of a hole in a display region for accommodating optical components leads to luminance deviation and image quality deterioration between the hole-included and non-hole-included regions in display apparatuses.
Innovation Solution
The display apparatus includes initialization voltage lines extending along horizontal lines, with adjacent lines connected in groups in the hole-included region to match the RC characteristics of the non-hole-included region, reducing luminance deviation by aligning the RC structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a hole is formed in the display region to place optical components, then the optical component can be accommodated, but luminance deviation and image quality deterioration occur between the hole-included and non-hole-included regions
Solution Approach 1:
The patent applies local quality by configuring initialization voltage lines differently in different regions: in the first region (adjacent to the hole), multiple initialization voltage lines are commonly connected to increase initialization voltage, while in the second region (non-adjacent to the hole), initialization voltage lines are independently connected. This regional differentiation compensates for the luminance deviation caused by the hole, maintaining image quality uniformity across the display.
2Device complexity
If initialization voltage lines are independently connected in all regions, then the circuit structure is simple, but luminance deviation increases in the hole-included region
Solution Approach 1:
The patent implements local quality by applying different connection configurations to initialization voltage lines in different regions: common connection in the first region (adjacent to hole) and independent connection in the second region (non-adjacent to hole), optimizing luminance uniformity locally where needed while maintaining overall circuit simplicity.
Solution Approach 2:
The patent changes the initialization voltage parameter in the first region by commonly connecting multiple initialization voltage lines, thereby increasing the initialization voltage to compensate for the luminance deviation caused by the hole, while keeping the initialization voltage at standard levels in the second region.
3Manufacturing precision
If initialization voltage is increased in the first region, then luminance deviation is reduced, but the RC characteristics must be carefully matched to avoid new issues
Solution Approach 1:
The patent changes the initialization voltage parameter in the first region by commonly connecting multiple initialization voltage lines, thereby increasing the initialization voltage to compensate for the luminance deviation caused by the hole, while keeping the initialization voltage at standard levels in the second region.
Solution Approach 2:
The patent implements local quality by applying different connection configurations to initialization voltage lines in different regions: common connection in the first region (adjacent to hole) and independent connection in the second region (non-adjacent to hole), optimizing luminance uniformity locally where needed while maintaining overall circuit simplicity.
Data Source
AI summary
A display apparatus includes: a display panel with a hole and including a display region with pixels; and initialization voltage lines extending along horizontal lines of the display region, and providing an initialization voltage to the pixels, wherein the display region includes a first display region including first and second regions arranged on both sides in a horizontal direction with the hole therebetween, and a second display region including third and fourth regions arranged on both sides in a vertical direction with the hole therebetween, wherein the initialization voltage lines include first to fourth initialization voltage lines respectively arranged in the first to fourth regions, wherein the first region includes a plurality of connection groups in each of which adjacent first initialization voltage lines are commonly connected, and wherein the second region includes a plurality of connection groups in each of which adjacent second initialization voltage lines are commonly connected.