Display Substrate Border Light Reflecting Layer
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Solution Overview
Problem
Conventional display devices have a noticeable visual difference between the border and display areas due to the cover layer not illuminating like the display area, leading to an adverse viewing experience.
Innovation Solution
A display substrate with a color resist layer and a light reflecting layer sequentially arranged on the non-display area, where the light reflecting layer is made of metal materials like aluminum or silver, and a passivation layer is used to cover these layers, allowing light reflection and reducing the visual distinction between the border and display areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a cover layer with color is arranged at the border position to cover underlying wiring, then the color compatibility with the main body is improved, but the visual difference between border and display areas remains noticeable due to lack of illumination
Solution Approach 1:
The patent applies different structures to different regions: the display area uses a transparent cover layer allowing light transmission, while the border area uses a light reflecting layer with color resist layer to reflect light and display color. This local differentiation resolves the contradiction by making each region's structure suitable for its specific function.
Solution Approach 2:
The patent uses a color resist layer in combination with the light reflecting layer to achieve color display at the border area. The color resist layer contains pigments or dyes that absorb certain wavelengths and reflect others, creating the desired color effect that matches the display area's appearance.
2Device complexity
If the entire display screen is made as a whole glass substrate, then the structural simplicity is improved, but the border area cannot be made visually indistinguishable from the display area
Solution Approach 1:
The patent maintains the overall simplicity of a whole glass substrate structure while introducing localized functional layers only where needed. The light reflecting layer and color resist layer are applied specifically to the border area, keeping the majority of the structure simple while achieving the desired visual effect at critical locations.
3Object-affected harmful factors
If light reflecting layer and color resist layer are arranged on the non-display area, then the visual difference between border and display areas is reduced, but the manufacturing process complexity increases
Solution Approach 1:
The patent forms the light reflecting layer and color resist layer during the manufacturing process before final assembly. By preparing these layers in advance on the glass substrate, the patent simplifies the overall manufacturing workflow and ensures proper alignment and integration with other display components.
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
The solution effectively reduces the visual difference between the border and display areas, providing a nearly border-free viewing experience by reflecting light and blocking wiring, enhancing user experience in display devices such as mobile phones and TVs.
Implementation Method 1
a light reflecting layer sequentially arranged on the non-display area of a first surface of the base substrate
Data Source
AI summary
A display substrate, a display panel, a display device and a manufacturing method thereof are provided. The display substrate includes a display area and a non-display area. The display substrate further includes a base substrate; and a color resist layer and a light reflecting layer sequentially arranged on the non-display area of a first surface of the base substrate, wherein the first surface and a second surface of the base substrate are two surfaces opposite to each other and the second surface is located at a light exiting side of the display substrate.