Asymmetric Subpixel Layout for Display Aperture Ratio
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Solution Overview
Problem
Existing display devices face challenges in achieving greater resolution performance and aperture ratio while maintaining subpixels of different widths along signal lines, as increasing the width of one subpixel affects the others, making it difficult to arrange them effectively.
Innovation Solution
The liquid crystal display device employs a specific arrangement of subpixels with varying widths, where the first and second subpixels have distinct dimensions and areas, allowing for a checkerboard pattern that increases the aperture ratio without decreasing resolution, and includes a white subpixel to enhance brightness and light transmissivity, while adjusting the layout of signal lines and pixel electrodes to prevent width increases in other subpixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the width of the first color subpixel is increased to improve aperture ratio, then the width of the second color subpixel must also be increased, making it difficult to arrange subpixels with different widths along signal lines
Solution Approach 1:
The patent applies asymmetry by making the first color subpixel wider than the second color subpixel along the signal line direction. This asymmetric arrangement allows different subpixels to have different widths, enabling the first subpixel to have a larger area for improved aperture ratio while the second subpixel maintains a smaller width, thus resolving the contradiction between aperture ratio and arrangement complexity
Solution Approach 2:
The patent resolves the width constraint by arranging subpixels in a multi-row configuration where the first and second color subpixels are positioned in different rows. This dimensional arrangement allows signal lines to connect to subpixels of different widths without requiring all subpixels to have uniform width along the same signal line, thus enabling asymmetric subpixel widths while maintaining manageable arrangement complexity
Data Source
AI summary
According to one embodiment, a display device includes a first subpixel and a second subpixel. An area, in a plan view, surrounded by a first signal line, a second signal line, a first scanning line, and a second scanning line and including a first pixel electrode is a first area. An area, in a plan view, surrounded by the first signal line, the second signal line, the second scanning line, and a third scanning line and including a second pixel electrode is a second area. The first area has a first distance in the first direction and the second area has a second distance in the first direction. The first distance is greater than the second distance.