Liquid Crystal Display Subpixel Arrangement for Aperture Ratio
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Solution Overview
Problem
Display devices, particularly in smartphones and tablets, face challenges in achieving higher resolution while maintaining a high aperture ratio due to increased signal line and light-shielding layer area, which also complicates color mixing prevention.
Innovation Solution
The implementation of a liquid crystal display device with a configuration of multiple subpixels arranged in a specific pattern, allowing adjacent subpixels to supplement color displays, thereby improving aperture ratio and luminance without reducing effective resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution is made higher, then the image quality is improved, but the pixel size is reduced and the aperture ratio is reduced
Solution Approach 1:
The pixel is divided into multiple subpixels (first subpixel, second subpixel, third subpixel) with different color display functions. This segmentation allows each subpixel to be optimized for specific color regions, reducing the overall area required for complete color representation while maintaining high resolution.
Solution Approach 2:
Different subpixels are assigned different color display characteristics (first color, second color, third color). This local quality differentiation enables efficient use of pixel area by having each subpixel specialize in displaying specific color information, thereby improving aperture ratio without sacrificing resolution.
2Measurement precision
If the ratio of signal line and light-shielding layer to pixel area is increased, then the resolution is improved, but the aperture ratio is reduced
Solution Approach 1:
By segmenting the pixel into multiple specialized subpixels, the patent reduces the total area required for signal lines and light-shielding layers. Each subpixel can use optimized wiring and shielding structures tailored to its specific color function, minimizing the overall infrastructure area and improving aperture ratio.
3Area of stationary object
If the ratio of signal line and light-shielding layer to pixel area is reduced, then the aperture ratio is improved, but color mixing becomes more difficult to restrict
Solution Approach 1:
Each subpixel is designed with specialized color display characteristics and optimized signal line configurations tailored to its specific color function. This local optimization allows for effective color mixing prevention even with reduced signal line and light-shielding layer area, as each subpixel's structure is specifically tuned to minimize interference with adjacent subpixels.
4Area of stationary object
If a pixel is made up of two subpixels, then the aperture ratio is improved, but the color display capability is limited
Solution Approach 1:
The pixel is divided into three subpixels with different color display characteristics (first color, second color, third color) instead of two. This segmentation provides both the aperture ratio benefits of multiple subpixels and the color display versatility of having three distinct color channels, enabling complete color representation while maintaining high aperture ratio.
Data Source
AI summary
According to one embodiment, a display device includes signal lines, scanning lines, a first pixel, a second pixel and a third pixel. The first pixel including a first subpixel which displays a first color, a second subpixel which displays white, and a third subpixel which displays a second color. The second pixel including a fourth subpixel which displays a third color, a fifth subpixel which displays white, and a sixth subpixel which displays the first color. The third pixel including a seventh subpixel which displays the second color, an eighth subpixel which displays white, and a ninth subpixel which displays the third color.