Under-Display Component Area Pixel Layout for Image Transmittance
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Solution Overview
Problem
Existing display devices face challenges in designing shapes and combining functions, particularly in integrating electronic components within the display area without compromising image display capabilities.
Innovation Solution
A display device with a main display area, a component area, and a peripheral area, featuring a first and second pixel circuit in the component area connected to auxiliary display elements, and a first initialization voltage line extending in a row direction between the pixel circuits, ensuring symmetry and efficient image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic components are integrated within the display area, then device functionality is enhanced, but image display quality deteriorates
Solution Approach 1:
The display area is segmented into a main display area for high-quality image display and a component area for housing electronic components. This spatial segmentation allows both image display functionality and component integration to coexist without mutual interference, resolving the contradiction between enhanced device functionality and maintained image display quality.
Solution Approach 2:
The component area is positioned in a region that does not overlap with the main display area, utilizing spatial dimensionality to separate functional zones. This dimensional arrangement enables electronic components to be integrated while preserving the optical path and display quality in the main display area.
2Illumination intensity
If pixel circuits are arranged in the component area, then transmittance is improved, but circuit design complexity increases
Solution Approach 1:
The pixel circuits in the component area are designed with an asymmetric layout relative to the initialization voltage line, with different transistor configurations (silicon-based vs. oxide-based) on either side. This asymmetric design optimizes transmittance characteristics while managing circuit complexity through differentiated circuit architectures.
Solution Approach 2:
Different semiconductor materials are used in different regions of the pixel circuits - silicon semiconductor in one region and oxide semiconductor in another. This local quality differentiation allows optimization of transmittance in specific areas while managing overall circuit complexity through material-specific design strategies.
3Manufacturing precision
If symmetric pixel circuit design is used, then manufacturing precision is improved, but initialization voltage line arrangement becomes complex
Solution Approach 1:
Multiple initialization voltage lines are merged into a single shared initialization voltage line that serves both pixel circuits symmetrically. This merging approach maintains manufacturing precision through symmetric circuit design while reducing the overall complexity of voltage line arrangement by consolidating redundant lines.
Data Source
AI summary
A display device includes: a plurality of main display elements in the main display area; a plurality of auxiliary display elements and a transmission area in the component area; a first pixel circuit in the component area and connected to a first auxiliary display element among the auxiliary display elements; a second pixel circuit in the component area and connected to a second auxiliary display element among the auxiliary display elements, the second pixel circuit neighboring the first pixel circuit in a column direction; and a first initialization voltage line in the component area, extending in a row direction, arranged between the first pixel circuit and the second pixel circuit, and connected to the first pixel circuit and the second pixel circuit, wherein the first pixel circuit and the second pixel circuit are symmetric with respect to the first initialization voltage line.