Reflective Layer on Light-Shielding Frame for Display Panels

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Solution Overview

Problem

Reflective Liquid Crystal Display (RLCD) devices suffer from low light utilization due to light scattering at the light-shielding portions, leading to reduced display performance and eye protection issues.

Innovation Solution

A reflective layer is integrated onto the light-shielding portion of the display panel's frame, which reflects scattered light back to the total reflection display unit, enhancing light utilization and reducing waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a light-shielding portion is installed around the display panel to prevent light scattering, then display effect is improved, but light utilization decreases

Engineering Contradiction:
Improvedisplay effectVSAvoidlight utilization
Core Design Contradiction:
Manufacturing precisionVSLoss of energy

Solution Approach 1:

The patent applies the principle of converting harm into benefit by transforming the harmful scattered light that would otherwise be wasted into useful light. The reflective layer on the light-shielding portion captures scattered light and redirects it back through the display panel, converting what was previously a loss into a beneficial contribution to the display effect. This resolves the contradiction by maintaining the light-shielding function while recovering the lost light energy.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent applies local quality by differentiating the functional properties of different regions of the frame. The light-shielding portion maintains its light-blocking property, while the reflective layer added to its surface provides a new local function of light reflection. This dual-function design allows the frame to simultaneously prevent light scattering and回收利用 scattered light, resolving the contradiction between display effect and light utilization.

Inventive Principle:
Principle #3Local quality

2Reliability

If light is irradiated to the total reflection display unit, then display function is achieved, but light scattering occurs at the light-shielding portion

Engineering Contradiction:
Improvedisplay functionVSAvoidlight scattering
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The reflective layer converts the harmful scattered light into beneficial reflected light by redirecting it back through the display panel. This transforms the scattering problem into a useful light recycling mechanism, maintaining display function while eliminating the harmful effect of light loss.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent implements a feedback mechanism where scattered light is captured and fed back into the display system through the reflective layer. This creates a closed-loop light path where previously lost light is returned to the display panel, improving overall light efficiency while maintaining reliable display function.

Inventive Principle:
Principle #23Feedback

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 implementation of a reflective layer on the light-shielding portion improves light utilization, enhancing the display performance and eye protection by minimizing light scattering, thereby providing a more efficient and comfortable reading experience.

Implementation Method 1

The reflective layer covers the first surface or the second surface... The reflective layer can reflect the light irradiated on the surface of the light shielding portion or entering the light shielding portion back to the total reflection display unit

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS20220252936A1Display panel, display module and electronic device
Publication Date: 2022.08.11 JRD COMM (SHENZHEN) LTD
  • US20220252936A1 patent drawing
  • US20220252936A1 patent drawing
  • US20220252936A1 patent drawing

AI summary

A display panel, a display module, and a display device are provided. The display panel includes a total reflection display unit and a frame enclosing the reflective display unit. The frame includes a light-shielding portion and a reflective layer. The light-shielding portion has a first surface parallel to a first direction and a second surface oppositely located to the first surface. The reflective layer covers the first surface or the second surface. The reflective layer can reflect the light irradiated on the surface of the light shielding portion or entering the light shielding portion back to the total reflection display unit again, avoiding the waste caused by the scattered light caused by the propagation path of the light, thereby improving the utilization rate of light.