Reflective Display Array Substrate Wavelength Selective Layer
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Solution Overview
Problem
Current reflective liquid crystal displays suffer from low reflectivity and poor display quality due to the need for light to pass through a color film multiple times, resulting in significant light energy loss.
Innovation Solution
An array substrate with a structure that reflects light at a predetermined wavelength while allowing other wavelengths to transmit through, eliminating the need for a color film and enhancing light utilization and reflectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If light is transmitted through the color film multiple times in reflective liquid crystal display, then color display and high refresh rate are achieved, but light energy loss increases to about 80% and reflectivity decreases
Solution Approach 1:
The patent extracts and removes the color film from the display structure, replacing it with a wavelength-selective reflective layer. This eliminates the need for light to pass through the color film multiple times, thereby reducing light energy loss while maintaining color display capability through the reflective layer's selective reflection properties
Solution Approach 2:
The patent uses a wavelength-selective reflective layer that changes the color characteristics of reflected light based on wavelength. This layer reflects specific wavelengths (colors) while transmitting others, enabling color display without the need for multiple passes through a color film, thus reducing light energy loss
2Adaptability or versatility
If light is transmitted through the color film multiple times in reflective liquid crystal display, then color display is achieved, but reflectivity decreases to a relatively low level
Solution Approach 1:
The patent removes the color film from the optical path and replaces it with a wavelength-selective reflective layer positioned closer to the viewer. This extraction eliminates the light transmission losses through the color film while maintaining color display capability, thereby improving overall reflectivity
Solution Approach 2:
Instead of having light transmit through the color film multiple times (forward path), the patent inverts the approach by using a reflective layer that selectively reflects specific wavelengths back to the viewer. This inversion of the optical path reduces light energy loss and improves reflectivity while maintaining color display
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 achieves high reflectivity and improved display quality by converting incident ambient light into targeted colors, reducing light energy loss and increasing light utilization, thereby enhancing the display effect.
Implementation Method 1
the structure for reflecting light is configured to reflect light at a predetermined wavelength and allow light other than the light at the predetermined wavelength to transmit therethrough
Data Source
AI summary
The present disclosure provides an array substrate for a reflective display panel, a method for preparing the same, and a display panel, the array substrate including a base and a pixel electrode and a structure for reflecting light arranged on the base, in which the structure for reflecting light is configured to reflect light at a predetermined wavelength and allow light other than the light at the predetermined wavelength to transmit therethrough.