Display Panel Light Reflective Pattern and Guiding Medium
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Solution Overview
Problem
Existing display technologies, such as liquid crystal and electrophoretic displays, face issues with low light transmittance and mechanical limitations, making them impractical for flexible and high-luminance applications.
Innovation Solution
A display panel design featuring a light-reflective pattern on one substrate and a light guiding medium between substrates, which guides incident light with minimal loss, allowing for high transmittance and flexibility, and includes a thin film transistor array for voltage-controlled reflectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If liquid crystal display technology with polarizing plate is used, then light reflection control is achieved, but light transmittance is low and display brightness is reduced
Solution Approach 1:
The patent removes the polarizing plate from the display structure, extracting the problematic component that caused significant light loss. By eliminating this element, the system achieves higher light transmittance and display brightness while maintaining reflective display functionality through alternative means (microlens array and reflective layer configuration).
Solution Approach 2:
The patent introduces a microlens array as an intermediary component between the liquid crystal layer and the reflective layer. This microlens array serves as a light-guiding structure that concentrates and directs incident light effectively, compensating for the removal of the polarizing plate and enabling efficient light control without the light losses associated with polarizing filters.
2Illumination intensity
If electrophoretic display technology with capsules is used, then color display is achieved, but uniformity is poor and mechanical strength is low
Solution Approach 1:
The patent replaces the complex capsule structure of electrophoretic displays with a simplified liquid crystal-based system that copies the essential function of particle rotation for color display. By using liquid crystal molecules instead of encapsulated particles, the system achieves color display capability while eliminating the uniformity and mechanical strength problems associated with fragile capsules.
3Adaptability or versatility
If flexible LCD is implemented, then flexibility is achieved, but bending is difficult due to polarizing plate
Solution Approach 1:
The patent removes the polarizing plate from the flexible display structure, extracting the rigid component that prevented effective bending. This extraction enables the flexible display to achieve proper bending capability while maintaining display functionality through the alternative light control mechanism using microlens array and reflective layer.
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 light transmittance and practicality by minimizing light loss and enabling flexible, high-brightness displays with adjustable brightness and color filtering, while being simpler to implement than existing technologies.
Implementation Method 1
a light guiding medium, arranged between the first substrate and the second substrate, and configured to guide incident light from the second substrate to the light-reflective pattern
Implementation Method 2
enable the incident light to be reflected by the light-reflective pattern to form reflecting light
Data Source
AI summary
The present disclosure provides a display panel and a display device. The display panel includes a first substrate and a second substrate, arranged opposite to each other to form a cell; a light-reflective pattern, formed on a side of the first substrate facing the second substrate; and a light guiding medium, arranged between the first substrate and the second substrate, and configured to guide incident light from the second substrate to the light-reflective pattern, so as to enable the incident light to be reflected by the light-reflective pattern to form reflecting light and guide the reflecting light to exit out of the second substrate.