Array Substrate Layout for Higher Pixel Aperture Uniformity
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Solution Overview
Problem
Existing liquid crystal displays suffer from low pixel aperture ratios due to non-effective light-transmitting areas occupied by components like thin-film transistors and storage capacitors, leading to reduced brightness and display effectiveness.
Innovation Solution
An array substrate design with alternating first and second sub-pixels, where the second sub-pixel integrates its driving device within the first sub-pixel's driving device area, and both types of sub-pixels are arranged alternately in two directions, optimizing the distribution of aperture ratios and reducing display unevenness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If driving devices are placed in each sub-pixel, then each sub-pixel can be independently controlled, but the pixel aperture ratio decreases due to occupied non-effective light-transmitting areas
Solution Approach 1:
The patent merges the driving device of the second sub-pixel with the driving device area of the first sub-pixel. Specifically, the second driving device is disposed in the driving device area of the first sub-pixel, allowing both driving devices to share the same physical space. This merging approach enables independent control of both sub-pixels while minimizing the total area occupied by driving devices, thereby maintaining a high pixel aperture ratio.
Solution Approach 2:
The patent implements a nested structure where the second driving device is nested within the driving device area of the first sub-pixel. The second driving device is positioned adjacent to and within the boundaries of the first driving device area, creating a space-efficient arrangement that accommodates multiple driving functions in a reduced footprint, thus preserving more area for light transmission.
2Stability of the object's composition
If different aperture ratios are used for different sub-pixels, then display uniformity can be improved, but the overall pixel aperture ratio is reduced
Solution Approach 1:
The patent applies local quality by creating different aperture ratios for first and second sub-pixels through asymmetric design. The first sub-pixel has a larger light-transmitting area while the second sub-pixel has a smaller light-transmitting area, but both achieve uniform display performance through the shared driving device area. This local differentiation optimizes display uniformity while maintaining high overall aperture ratio.
Solution Approach 2:
The patent employs asymmetric design where the first sub-pixel and second sub-pixel have different aperture ratios and different driving device area configurations. The first sub-pixel's driving device area and the second sub-pixel's driving device area are arranged asymmetrically within the pixel, allowing optimized light transmission paths and display uniformity across different sub-pixel types.
Data Source
AI summary
The present application provides an array substrate and a display panel, where the display panel including first sub-pixels and second sub-pixels, the first sub-pixels and the second sub-pixels arranged alternately in a first direction and in a second direction, the first direction being different from the second direction; each first sub-pixel including a first light-transmitting area and a driving device area arranged in the second direction, the first sub-pixel further including a first pixel electrode disposed in the first light-transmitting area and a first driving device disposed in the driving device area, the first driving device being electrically connected to the first pixel electrode; each second sub-pixel including a second light-transmitting area adjacent to the first light-transmitting area and the driving device area, the second sub-pixel further including a second pixel electrode disposed in the second light-transmitting area.