Expanded Display Pixel Circuit Layout for Transparent Sensor Areas
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Solution Overview
Problem
Existing display apparatuses face challenges in expanding the display area while maintaining image quality and efficiency, particularly when incorporating additional components like cameras or sensors that require transparent areas for light transmission.
Innovation Solution
The display apparatus is designed with specific pixel circuits and display elements arranged in distinct areas, including a first area for main display, a second area for components with partial transparency, and a third area for auxiliary display, utilizing optimized storage and boosting capacitors to maintain image quality and efficiency across different pixel densities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display area is expanded to accommodate additional components like cameras or sensors, then the functionality and versatility of the display apparatus is improved, but the image quality and light transmittance in certain areas deteriorate
Solution Approach 1:
The patent applies local quality by creating distinct display areas with different characteristics: a first display area with standard pixel circuits for main display content, and a second display area with transparent pixel circuits for components requiring light transmission. This allows different regions of the same display to have optimized properties for their specific functions, resolving the contradiction between expanded functionality and maintained image quality.
Solution Approach 2:
The display is segmented into multiple functional areas: a first display area for primary content, a second display area with transparent pixels for camera/sensor integration, and potentially a third area for auxiliary functions. This segmentation allows each zone to be optimized independently, enabling component integration without compromising overall display performance.
2Measurement precision
If the pixel circuit configuration is optimized for higher pixel density, then the resolution is improved, but the area available for light transmission and component integration deteriorates
Solution Approach 1:
Different pixel circuit designs are used in different areas: high-density pixel circuits in the first display area for maximum resolution, and transparent pixel circuits in the second area for light transmission. This local optimization allows the display to achieve high resolution where needed while providing transparent areas for component integration.
3Adaptability or versatility
If transparent areas are created for component integration, then the adaptability is improved, but the image quality and display continuity in those areas deteriorates
Solution Approach 1:
The display is divided into discrete functional zones with clear boundaries. The second display area with transparent pixels is strategically positioned and sized to accommodate components while maintaining a coherent overall display image. This segmentation allows transparent areas to be integrated without disrupting the visual continuity and image quality of the main display regions.
Data Source
AI summary
A display apparatus includes a first pixel circuit and a second pixel circuit. The first pixel circuit includes a first driving transistor and a first storage capacitor having a first lower storage electrode connected to a gate of the first driving transistor and a first upper storage electrode overlapping the first lower storage electrode. The second pixel circuit includes a second driving transistor and a second storage capacitor including a second lower storage electrode connected to a gate of the second driving transistor and a second upper storage electrode overlapping the second lower storage electrode. A second overlapping area of the second lower storage electrode and the second upper storage electrode is about twice to about four times a first overlapping area of the first lower storage electrode and the first upper storage electrode.