Symmetric Auxiliary Pixel Circuits for Component-Area Displays
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Solution Overview
Problem
Existing display devices face challenges in designing a display area that extends to include components, such as cameras or sensors, while maintaining image display functionality and minimizing functional limitations.
Innovation Solution
A display device design that includes a main display area with main sub-pixels and a component area with auxiliary sub-pixels, where auxiliary pixel circuits are symmetrically arranged with respect to initialization voltage lines, using silicon and oxide semiconductors for thin film transistors, and incorporating transmission areas for components like cameras or sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If components are arranged in the display area, then device functionality is improved, 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 components to be integrated without compromising the main display quality, as the component area uses auxiliary display elements with different requirements
Solution Approach 2:
Different display quality requirements are applied to different regions: the main display area maintains high resolution and image quality, while the component area uses auxiliary display elements that can tolerate lower quality. This local quality differentiation allows component integration while preserving overall display performance
2Adaptability or versatility
If display area is extended to include component region, then device versatility is improved, but manufacturing complexity increases
Solution Approach 1:
The main display area and component area are merged into a single integrated display panel structure, sharing common manufacturing processes and materials. This merging reduces overall manufacturing complexity compared to separate components, while still enabling diverse device functionalities through the integrated component area
Solution Approach 2:
The display panel is designed with universal characteristics that allow it to serve multiple functions: main display, component housing, and auxiliary display. This multi-functionality is achieved through universal material selection and manufacturing processes that can accommodate different functional requirements within the same production line
3Manufacturing precision
If auxiliary pixel circuits are symmetrically arranged, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
While maintaining overall symmetry for manufacturing benefits, the circuit layout uses asymmetric element arrangements (different semiconductor materials for different transistors) to optimize performance. This controlled asymmetry within a symmetric framework balances manufacturing precision with device functionality
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.