Under-Display Component Area Wiring for Full-Screen Image Display
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Solution Overview
Problem
Display devices face challenges in displaying images in regions where electronic components are integrated, limiting the effective display area and functionality.
Innovation Solution
A display panel design that includes a substrate with a main display area, component area, and transmission area, featuring alternating initialization voltage and bias lines, symmetric pixel circuits, and a bottom metal layer to accommodate electronic components while maintaining image display capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic components are integrated into the display region, then device functionality is enhanced, but the display area is reduced and image quality deteriorates
Solution Approach 1:
The patent introduces a component area positioned between the main display area and the peripheral area, creating a new spatial dimension for integrating electronic components without reducing the main display area. This allows components to be embedded in a dedicated zone that does not interfere with the primary display region, thus maintaining full display functionality while adding component integration capabilities.
Solution Approach 2:
The display panel is divided into distinct functional zones: main display area, component area, and peripheral area. This segmentation allows each region to serve its specific purpose independently, enabling electronic components to be integrated in the component area without affecting the main display area's image quality and display capabilities.
2Adaptability or versatility
If wiring lines are densely arranged to support components, then component integration is enabled, but manufacturing precision requirements increase
Solution Approach 1:
The patent implements different wiring arrangements for different regions. In the component area, initialization voltage lines and bias lines are alternately arranged to provide appropriate electrical connections for components. This localized wiring strategy ensures that each region receives the specific wiring configuration needed for its function, reducing overall manufacturing precision requirements compared to a uniform dense wiring approach.
3Reliability
If bias lines and initialization voltage lines are alternately arranged, then electrical stability is improved, but device complexity increases
Solution Approach 1:
The alternating arrangement of bias lines and initialization voltage lines serves multiple functions: it provides stable electrical connections for components in the component area, maintains proper voltage distribution across the display panel, and enables both component operation and display functionality. This multi-functional wiring pattern achieves electrical stability without requiring separate dedicated wiring systems for each function.
Data Source
AI summary
A display device includes a substrate including a main display area, main display elements being in the main display area; a component area, auxiliary display elements and a transmission area being in the component area; and a peripheral area outside the main display area; an initialization voltage line in the main display area and extending in a first direction; a bottom metal layer in the component area between the substrate and the auxiliary display elements; and a bias line in the main display area and extending in the first direction, the bias line being connected to the bottom metal layer and being at a same layer as the initialization voltage line, wherein the bias line and the initialization voltage line are alternately arranged along a second direction crossing the first direction, in a first region of the main display area around the component area.