Display Pixel Signal-Line Layout for Simultaneous Gate-Line Driving
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Solution Overview
Problem
Display devices face challenges in simultaneously driving adjacent gate lines in pixel configurations where sub-pixels of different colors are coupled to a common signal line, hindering high-definition image display in applications like VR, AR, and MR.
Innovation Solution
A display device design with a specific pixel configuration where gate lines extend in one direction and signal lines in another, with signal lines coupling to alternate rows and columns of pixels, allowing simultaneous driving of adjacent gate lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If sub-pixels of different colors are coupled to a common signal line in an RGB stripe array configuration, then the opening area of sub-pixels is secured, but adjacent gate lines cannot be simultaneously driven
Solution Approach 1:
The patent divides the pixel array into different regions with distinct signal line coupling configurations. Specifically, it segments the coupling relationships between signal lines and pixels, creating a structure where signal lines can be selectively coupled to pixels in odd-numbered rows or even-numbered rows. This segmentation allows adjacent gate lines to be simultaneously driven by enabling independent signal line coupling in different row regions, resolving the contradiction between maintaining opening area and achieving simultaneous gate line driving.
Solution Approach 2:
The patent applies local quality by creating different signal line coupling patterns in different regions of the pixel array. In some regions, signal lines are coupled to pixels in odd-numbered rows, while in other regions, they are coupled to pixels in even-numbered rows. This local differentiation in coupling quality allows adjacent gate lines to be simultaneously driven without compromising the opening area, as each region maintains its own optimized coupling configuration.
2Manufacturing precision
If the width of sub-pixels is reduced to achieve higher definition, then image definition is improved, but the opening area of sub-pixels becomes insufficient
Solution Approach 1:
The patent resolves this contradiction by transitioning from a conventional RGB stripe array configuration to a pixel array configuration that utilizes two-dimensional coupling patterns. Instead of relying solely on horizontal or vertical arrangements, the patent implements signal line coupling that spans both odd-numbered and even-numbered rows in a matrix pattern. This dimensional change allows the opening area to be secured while maintaining reduced sub-pixel widths, as the coupling extends into the second dimension (row-based distribution) rather than being constrained to a single dimension.
Data Source
AI summary
A display device includes: pixels, gate lines, signal lines, and a drive circuit. When M is the total number of the pixels arrayed in ascending order from a first column to a m-th column (m is a natural number) from one end in a first direction to the other end, and N is the total number of the pixels arrayed in ascending order from a first row to a n-th row (n is a natural number) from one end in a second direction to the other end, the total number of the gate lines is N, and the total number of the signal lines is M+1, the n-th gate line is coupled to the pixels arrayed in the n-th row, and the m-th signal line is coupled to the pixels arrayed in the m−1-th column of odd-numbered rows and the pixels arrayed in the m-th column of even-numbered rows.