Transparent Display Panel Meshed Shielding Pattern

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Solution Overview

Problem

Current transparent displays face issues with low transparency and poor deep color display due to low luminance in deep color pixel regions, making it difficult to observe the background and maintain grayscale control.

Innovation Solution

A display panel design featuring a substrate with a meshed shielding pattern and light-emitting devices, where the ratio of light-emitting device area to pixel region area is kept low to enhance transparency, and the inclusion of solar cells for improved grayscale control by absorbing light.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the area ratio of light-emitting device to pixel region is increased to improve deep color display, then the luminance of deep color pixel regions is improved, but the transparency of the display panel deteriorates

Engineering Contradiction:

Improveluminance of deep color pixel regionsVSAvoidtransparency of display panel

Core Design Contradiction:

Illumination intensityVSReliability

Solution Approach 1:

The pixel region is segmented into multiple sub-pixel regions, each containing a light-emitting device. By dividing the pixel region into smaller units, the patent achieves sufficient luminance output while maintaining overall transparency, as not the entire pixel area is occupied by light-emitting materials.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions within the pixel structure are assigned different functions: light-emitting devices are placed in specific locations to provide luminance where needed, while other regions remain transparent to maintain background visibility. This local differentiation resolves the contradiction between luminance requirements and transparency needs.

Inventive Principle:

Principle #3Local quality

2Reliability

If the transparency of the display panel is increased to improve background visibility, then the user can clearly observe the background, but the deep color display capability deteriorates due to insufficient luminance control

Engineering Contradiction:

Improvebackground visibilityVSAvoidluminance of deep color pixel regions

Core Design Contradiction:

ReliabilityVSIllumination intensity

Solution Approach 1:

The display panel incorporates dynamic grayscale control mechanisms that allow the luminance of light-emitting devices to be adjusted in real-time. This dynamic control enables the system to maintain both high transparency and adequate luminance for deep color display by adapting the light output to specific display requirements.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent employs parameter changes in the light-emitting devices, such as adjusting emission intensity and duration, to achieve different display effects. By controlling these parameters, the system can switch between high transparency mode and deep color display mode as needed.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If the area of light-emitting devices is reduced to improve transparency, then the background behind the display becomes more visible, but the deep color display capability deteriorates

Engineering Contradiction:

Improvetransparency of display panelVSAvoiddeep color display capability

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent uses composite light-emitting structures that combine multiple materials with different optical properties. These composite structures enable small-area light-emitting devices to achieve high luminance efficiency and accurate color rendering, resolving the contradiction between reduced area and maintained display capability.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent replaces traditional mechanical or large-area light-emitting approaches with advanced light-emitting device technologies that achieve high luminance in smaller footprints. This substitution enables compact light-emitting structures that maintain deep color display capability while preserving transparency.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 design increases transparency and enables better deep color display by maintaining high light transmittance in pixel regions and achieving effective grayscale control through solar cell operation.

Implementation Method 1

solar cells are disposed on the substrate, wherein at least one light-emitting device of the light-emitting devices and at least one solar cell of the solar cells are disposed in each pixel region of the pixel regions

Methodology Applied

Scientific EffectLight absorption: Absorption (EM radiation)

Data Source

PatentUS8981391B2Display panel with high transparency

Publication Date: 2015.03.17 IND TECH RES INST

AI summary

A display panel including a substrate, a meshed shielding pattern, and a plurality of light-emitting devices is provided. The meshed shielding pattern is disposed on the substrate so as to define a plurality of pixel regions on the substrate. The light-emitting devices are disposed on the substrate. At least one light-emitting device of the light-emitting devices is disposed in each pixel region of the pixel regions, wherein an area of the pixel region is A1, an area of the light-emitting device is A2, and a ratio of A2 to A1 is below 50%.