Curved Data Line Display Substrate Aperture Ratio
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Solution Overview
Problem
The aperture ratio of display devices is limited due to light leakage, which reduces display quality, and existing solutions require black matrices to mitigate this issue, thereby complicating the manufacturing process.
Innovation Solution
A display substrate design featuring curved data lines covered by pixel electrodes, creating a modulation electric field that deflects liquid crystal molecules, eliminating the need for black matrices and enhancing the aperture ratio by reducing parasitic capacitance-induced crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If black matrices are arranged on the color filter substrate to avoid light leakage, then light leakage is reduced, but the aperture ratio is reduced and device complexity increases
Solution Approach 1:
The invention extracts and removes the black matrix component from the display structure. Instead of using black matrices to block light leakage, the patent uses a different approach where the data line itself generates a modulation electric field to control liquid crystal molecules, thereby eliminating the need for black matrices and increasing the aperture ratio
Solution Approach 2:
The invention introduces an intermediary mechanism - the modulation electric field generated by the data line - to solve the light leakage problem. This electric field acts as a mediator that deflects liquid crystal molecules to prevent light leakage without requiring physical black matrix structures
2Object-affected harmful factors
If black matrices are arranged on the color filter substrate to avoid light leakage, then light leakage is reduced, but device complexity increases
Solution Approach 1:
The invention extracts and removes the black matrix component from the display structure. Instead of using black matrices to block light leakage, the patent uses a different approach where the data line itself generates a modulation electric field to control liquid crystal molecules, thereby eliminating the need for black matrices and increasing the aperture ratio
Solution Approach 2:
The data line serves multiple functions: it transports data signals and simultaneously generates a modulation electric field to control liquid crystal molecules and prevent light leakage. This multi-functionality eliminates the need for separate black matrix structures, simplifying the manufacturing process
3Ease of manufacture
If data lines are arranged in straight lines between pixel units, then manufacturing is simplified, but parasitic capacitance-induced crosstalk increases
Solution Approach 1:
The invention applies curved geometry to the data lines, transforming them from straight lines to arc-shaped structures. This curvature design reduces the overlap area between data lines and pixel electrodes, thereby decreasing parasitic capacitance and minimizing crosstalk while remaining compatible with standard manufacturing processes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design improves the aperture ratio and display quality by eliminating light leakage and reducing crosstalk caused by parasitic capacitance, resulting in a more efficient and simplified manufacturing process.
Implementation Method 1
a pixel electrode and a thin film transistor configured to control the pixel electrode
Implementation Method 2
liquid crystal molecules at positions, corresponding to a data line, in a liquid crystal layer can deflect in a specified direction
Implementation Method 3
reducing crosstalk caused by parasitic capacitance
Data Source
AI summary
Disclosed are a display substrate, a display panel, a display device. The display substrate includes pixel units on a substrate in form of array, gate lines in one-to-one correspondence to each row of pixel units, data lines between any two adjacent columns of pixel units and on sides, far away from the substrate, of gate lines, each pixel unit includes a pixel electrode, a thin film transistor configured to control the pixel electrode; each data line includes curved data line parts between any two pixel units, whose row directions are adjacent to each other, in two columns of pixel units on two sides of data line; each data line part includes a first part covered by a pixel electrode of pixel unit on one side of the data line part, a second part covered by a pixel electrode of pixel unit on the other side of the data line part.