Transparent Display Subpixel Sharing Layout
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Solution Overview
Problem
The reduction of non-transmissive areas in transparent display devices to increase transmissive areas leads to challenges in the placement and routing of signal lines and driving transistors, affecting the device's transparency and functionality.
Innovation Solution
A display device design where adjacent pixels share subpixels, allowing for a more efficient use of space in the non-transmissive areas, thereby increasing the size of the transmissive area and improving transparency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the non-transmissive area is reduced to increase transmissive area, then transparency is improved, but the placement and routing of driving transistors and signal lines becomes more difficult
Solution Approach 1:
Adjacent pixels share common subpixels, combining the subpixel resources of multiple pixels into a shared structure. This reduces the total number of subpixels required in the non-transmissive area, thereby increasing the transmissive area and improving transparency while managing the complexity of signal line routing through shared connections.
Solution Approach 2:
Shared subpixels serve multiple pixels simultaneously, making these subpixels multi-functional. By designing signal lines to serve multiple shared subpixels, the system achieves efficient resource utilization and maintains routing simplicity despite the reduced non-transmissive area.
2Illumination intensity
If adjacent pixels share subpixels, then the transmissive area is increased and transparency is improved, but capacitive coupling between adjacent subpixels may cause luminance changes
Solution Approach 1:
A shared signal line is introduced as an intermediary between adjacent pixels that share subpixels. This shared signal line is specifically designed to suppress capacitive coupling effects, acting as a mediator that maintains electrical isolation while enabling the shared subpixel structure, thereby preventing luminance changes in adjacent subpixels.
Data Source
AI summary
A display device includes a substrate having transmissive areas and a non-transmissive area disposed between the transmissive areas. A first pixel is provided in the non-transmissive area, and includes a first subpixel, a second subpixel and a third subpixel. A second pixel is disposed adjacent the first pixel in the non-transmissive area, and includes a third subpixel. The first pixel and the second pixel share the first subpixel and the second subpixel.