Display Panel Sub-Pixel Aperture and Electrode Configuration
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Solution Overview
Problem
In LCD panels, the reduction in black matrix area leads to a decrease in the distance between photo spacers and pixel aperture areas, causing potential light leakage and display quality issues, and beveling photo spacers results in negative effects like stripes and light scattering.
Innovation Solution
The display panel design includes sub-pixels with varying aperture areas and electrode configurations, such as plate-shaped and slit-shaped electrodes, to maintain equal light transmittance between sub-pixels, reducing the impact of photo spacers on display quality by adjusting electrode widths and distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the area of black matrix is reduced to increase resolution, then the resolution is improved, but the distance between photo spacer and pixel aperture area is reduced causing light leakage
Solution Approach 1:
The patent applies local quality by making sub-pixels adjacent to photo spacers (first sub-pixels) have different aperture areas compared to sub-pixels not adjacent to photo spacers (second sub-pixels). Specifically, first sub-pixels have smaller aperture areas to compensate for the shadowing effect caused by nearby photo spacers, while maintaining equal light transmittance across all sub-pixels through adjusted electrode configurations.
2Length of stationary object
If large-sized photo spacers are bevelled to increase distance from photo spacers to pixel aperture area, then the distance is increased, but tilt fringes appear during image displaying
Solution Approach 1:
The patent changes the geometric parameters of sub-pixels by creating two types with different aperture areas. First sub-pixels adjacent to photo spacers have smaller aperture areas, while second sub-pixels have larger aperture areas. This parameter differentiation compensates for the shadowing effect without requiring beveling, thereby avoiding tilt fringe formation while maintaining sufficient distance between photo spacers and pixel aperture areas.
3Object-affected harmful factors
If aperture area of first sub-pixel is reduced to compensate for shadowing effect, then the shadowing effect is compensated, but the aperture area is reduced
Solution Approach 1:
The patent changes the geometric parameters of sub-pixels by creating two types with different aperture areas. First sub-pixels adjacent to photo spacers have smaller aperture areas, while second sub-pixels have larger aperture areas. This parameter differentiation compensates for the shadowing effect without requiring beveling, thereby avoiding tilt fringe formation while maintaining sufficient distance between photo spacers and pixel aperture areas.
Solution Approach 2:
The patent applies local quality by making sub-pixels adjacent to photo spacers (first sub-pixels) have different aperture areas compared to sub-pixels not adjacent to photo spacers (second sub-pixels). Specifically, first sub-pixels have smaller aperture areas to compensate for the shadowing effect caused by nearby photo spacers, while maintaining equal light transmittance across all sub-pixels through adjusted electrode configurations.
Data Source
AI summary
In accordance with various embodiments of the disclosed subject matter, a display panel, and a related display apparatus are provided. In some embodiments, the display panel comprises: a plurality of first sub-pixels adjacent to a photo spacer; and a plurality of second sub-pixels separated from the major photo spacer; wherein an aperture area of each first sub-pixel is smaller than an aperture area of each second sub-pixel, while a light transmittance of each first sub-pixel is substantially equal to a light transmittance of each second sub-pixel.