3D Display Panel Black Matrix Segmentation for Vertical Viewing Angle
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Solution Overview
Problem
Current 3D display technologies using polarized glasses with phase difference plates suffer from a smaller vertical viewing angle due to the need to increase the width of the black matrix to enhance this angle, which results in a reduced aperture ratio.
Innovation Solution
A display panel design featuring a first substrate with data lines and scan lines arranged in a matrix configuration, where sub-pixel units are sequentially connected to the same data line and scan lines, and a second substrate with black matrices disposed above the scan lines, where the width of the first black matrix is greater than the scan lines, allowing for increased vertical viewing angle without reducing the aperture ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the width of the black matrix is increased to increase the vertical viewing angle, then the vertical viewing angle is improved, but the aperture ratio is reduced
Solution Approach 1:
The black matrix is divided into multiple separate black matrix layers (first black matrix layer, second black matrix layer, third black matrix layer) positioned at different heights. Each layer serves a specific function: the first layer blocks crosstalk between adjacent pixels, the second layer blocks crosstalk between diagonal pixels, and the third layer blocks crosstalk between non-adjacent pixels. This segmentation allows the vertical viewing angle to be increased without significantly reducing the aperture ratio, as each layer is optimized for its specific crosstalk blocking function rather than requiring a single large continuous black matrix.
Solution Approach 2:
The patent transitions from a traditional two-dimensional black matrix structure to a three-dimensional multi-layer structure. By distributing black matrix materials across multiple vertical levels (first, second, and third black matrix layers at different heights), the system achieves enhanced crosstalk blocking in the vertical dimension while maintaining horizontal aperture ratio. This dimensional transformation allows the black matrix to extend its protective function without occupying additional horizontal space that would reduce the aperture ratio.
2Object-generated harmful factors
If the width of the black matrix is increased to block image crosstalk, then the image crosstalk is reduced, but the aperture ratio is reduced
Solution Approach 1:
The black matrix is segmented into multiple functional layers, each targeting specific crosstalk patterns. The first black matrix layer addresses horizontal adjacent pixel crosstalk, the second layer addresses diagonal pixel crosstalk, and the third layer addresses non-adjacent pixel crosstalk. This segmentation enables comprehensive crosstalk blocking with minimal impact on aperture ratio, as each layer is precisely positioned and sized to block only the specific crosstalk it targets.
Solution Approach 2:
By moving from a single-plane black matrix to a multi-layer three-dimensional structure, the system blocks image crosstalk in the vertical dimension while preserving horizontal aperture ratio. The multiple black matrix layers are positioned at different heights to intercept crosstalk light paths at various stages, effectively blocking image crosstalk without requiring increased horizontal black matrix width that would reduce the aperture ratio.
Data Source
AI summary
The present invention provides a display panel and a 3D display device. The display panel comprising: a first substrate comprising multiple data lines, multiple scan lines, and multiple pixel units, wherein the pixel unit comprising three sub-pixel units, and each of the sub-pixel units electrically connects to the same data line sequentially, and each of the sub-pixel units electrically connects to the corresponding scan line, and the scan line corresponding to at least one of the sub-pixel unit and the scan line corresponding to the first sub-pixel unit of the adjacent next pixel unit are disposed side by side; and a second substrate disposed correspondingly to the first substrate and comprising a first black matrix disposed correspondingly to the scan lines. In the present invention, the scan lines corresponding to the multiple sub-pixels are disposed side by side such that increasing the width of the first black matrix between adjacent pixel units and vertical viewing angle and do not reduce the aperture ratio.