Reflecting Layer on Black Matrix for Ambient Light Utilization
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Solution Overview
Problem
Transflective LCDs have a low utilization rate of ambient light, resulting in a suboptimal display effect, especially under varying light conditions.
Innovation Solution
A color filter with a substrate and pixel regions, featuring a color film, black matrix, and a reflecting layer on the black matrix's surface, which enhances light reflection and transmission, allowing more ambient light to pass through and improving display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a transflective LCD uses a reflecting surface partially in each pixel unit, then visibility under both bright and weak ambient light is improved, but utilization rate of ambient light remains relatively low
Solution Approach 1:
The reflecting layer is extended from the traditional bottom surface only to include the side surfaces of the black matrix, creating a three-dimensional light reflection structure. This dimensional expansion allows ambient light to be reflected from multiple directions and paths, increasing the overall utilization rate of ambient light while maintaining good visibility under both bright and weak lighting conditions.
Solution Approach 2:
The black matrix surface is segmented into multiple reflection surfaces: the bottom surface and the side surfaces. Each surface independently reflects ambient light, and the combined effect of these segmented surfaces significantly increases the total amount of ambient light utilized for display, resolving the contradiction between visibility and light utilization efficiency.
2Use of energy by moving object
If a reflective LCD uses ambient light as light source, then energy consumption is reduced and visibility under bright ambient light is improved, but contrast and color saturation are low
Solution Approach 1:
The multi-surface reflecting layer structure ensures continuous and efficient reflection of ambient light through multiple paths (bottom surface reflection and side surface reflection). This continuous light reflection action increases the amount of light reaching the display area, thereby improving contrast and color saturation while maintaining the energy-saving advantage of ambient light usage.
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 increases the utilization rate of ambient light and enhances the display effect by allowing more light to pass through the color film, improving visibility and brightness while maintaining contrast.
Implementation Method 1
a reflecting layer 4 for reflecting ambient light entering into the color film 2 is provided on a surface of the black matrix 3
Data Source
AI summary
The present invention provides a color filter, a display panel and a display device. The color filter comprises a substrate, on which a plurality of pixel regions are formed, in each of the plurality of pixel regions, a color film and a black matrix is provided, and a reflecting layer for reflecting ambient light entering into the color film is provided on a surface of the black matrix. Compared to the prior art, the present invention can improve the utilization rate of ambient light and improve the display effect.