Electrode Layer Complementary Shapes Eliminate Light Stripes
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Solution Overview
Problem
Existing electrode layers in touch panels and display apparatuses suffer from light and dark stripes due to differences in light reflection from rows of electrode strips, degrading display quality.
Innovation Solution
The electrode layer design features interlacing first and second electrode strips with complementary shapes, including varying widths and sloped surfaces, to ensure similar light reflection across rows, reducing or eliminating the formation of light and dark stripes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional electrode strips with uniform width are used, then manufacturing is simple, but light and dark stripes appear due to uneven light reflection
Solution Approach 1:
The electrode strips are designed with varying widths at different locations rather than uniform width throughout. Specifically, the width of electrode strips changes along the column direction to compensate for light reflection differences between row regions, making different parts of the same electrode strip have different functional properties (width) to achieve uniform overall light reflection
Solution Approach 2:
The width parameter of the electrode strips is changed systematically across different rows and columns. By adjusting the width parameter locally (wider in some regions, narrower in others), the design compensates for the varying light reflection characteristics of different row regions, transforming a uniform parameter design into a variable parameter design to eliminate light and dark stripes
2Illumination intensity
If electrode strips have varying widths to compensate light reflection, then display quality improves, but manufacturing precision requirements increase
Solution Approach 1:
The electrode layer is segmented into multiple first electrode strips and second electrode strips arranged in an interlaced pattern. This segmentation allows the varying width compensation to be distributed across multiple discrete elements rather than requiring one complex continuously varying structure, making the precision requirements more manageable through standardized manufacturing processes
Solution Approach 2:
The design introduces asymmetric width variations in the electrode strips, where strips in different row regions have different widths deliberately designed to compensate for light reflection differences. This asymmetric design breaks the uniformity that causes light and dark stripes, achieving visual uniformity through controlled asymmetry in the physical structure
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 effectively reduces or eliminates the visibility of light and dark stripes, enhancing display quality by ensuring consistent light reflection across the electrode layer, thereby improving user experience.
Implementation Method 1
amount of light reflection from a first row region is similar to light reflection from a second, neighboring, row region to thereby reduce or eliminate light and dark stripes resulting from light reflection by the plurality of first and second electrode strips
Data Source
AI summary
A touch-control panel of a display apparatus includes one or more electrode layers. The electrode layer includes: a plurality of first electrode strips; and a plurality of second electrode strips interlacing with the plurality of first electrode strips and extending along a column direction; wherein the plurality of first electrode strips and the plurality of second electrode strips have widths varying along the column direction to thereby realize complementary shapes.