Display Panel Pixel Structure With Invisible-Light Absorbing Layer

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Solution Overview

Problem

Existing display panels are limited to displaying images and lack functionality beyond visual output, with sub-pixels vulnerable to damage from emitted invisible light.

Innovation Solution

Incorporation of functional sub-pixels that emit invisible light, such as ultraviolet or infrared, with a light-absorbing layer to protect display sub-pixels and enhance panel functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If functional sub-pixels emitting invisible light are integrated into the display panel, then the functionality of the display panel is enhanced (e.g., sterilization, self-cleaning), but the display sub-pixels are exposed to harmful invisible light radiation that can damage them

Engineering Contradiction:

ImprovefunctionalityVSAvoiddisplay sub-pixel durability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

A light-absorbing layer is introduced as an intermediary component between the functional sub-pixels and display sub-pixels. This layer selectively absorbs invisible light (such as ultraviolet) emitted by functional sub-pixels, preventing it from reaching and damaging the display sub-pixels, while allowing visible light to pass through for normal display functionality.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The pixel structure is segmented into distinct functional sub-pixels and display sub-pixels with different opening widths. Functional sub-pixels have smaller opening widths to control light emission, while display sub-pixels have larger opening widths for optimal visual output. This segmentation allows independent optimization of each sub-pixel type.

Inventive Principle:

Principle #1Segmentation

2Power

If the opening width of functional sub-pixels is increased to enhance invisible light emission intensity, then the sterilization and self-cleaning effectiveness is improved, but more invisible light reaches display sub-pixels causing damage

Engineering Contradiction:

Improveinvisible light emission intensityVSAvoiddamage to display sub-pixels

Core Design Contradiction:

PowerVSObject-affected harmful factors

Solution Approach 1:

The light-absorbing layer serves as a protective intermediary that decouples the relationship between functional sub-pixel opening width and display sub-pixel exposure. This allows functional sub-pixels to operate at higher power levels for effective sterilization without proportionally increasing damage to display sub-pixels, as the light-absorbing layer intercepts the harmful radiation.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If display sub-pixels are positioned closer to functional sub-pixels to reduce pixel size, then the overall pixel density is increased, but the protection of display sub-pixels from invisible light becomes more difficult

Engineering Contradiction:

Improvepixel densityVSAvoidinvisible light exposure

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The light-absorbing layer is positioned between functional and display sub-pixels regardless of their spatial separation. This intermediary structure provides consistent protection even when pixels are densely packed, as the light-absorbing material blocks invisible light paths that would otherwise directly connect adjacent sub-pixels.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The light-absorbing layer is strategically positioned only where needed - between functional sub-pixels and adjacent display sub-pixels. This localized protection approach allows dense pixel packing while maintaining protection where harmful light exposure occurs, without requiring increased spacing that would reduce pixel density.

Inventive Principle:

Principle #3Local quality

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

Enriches display panel functions, such as sterilization and self-cleaning, while safeguarding display sub-pixels from invisible light radiation, extending their lifespan and maintaining optical efficiency.

Implementation Method 1

a light-absorbing layer disposed between a functional sub-pixel and a display sub-pixel adjacent to each other, wherein the light-absorbing layer is configured to absorb invisible light emitted from the functional sub-pixel

Methodology Applied

Scientific EffectLight absorption: Absorption (EM radiation)

Data Source

PatentUS20260033200A1Display panel, method for manufacturing same and method for driving same, and display device

Publication Date: 2026.01.29 BOE TECHNOLOGY GROUP CO LTD

AI summary

Provided is a display panel. The display panel includes: a substrate; a plurality of pixels disposed on a side of the substrate, wherein each of the plurality of pixels includes a plurality of display sub-pixels for emitting different colors of visible light and at least one functional sub-pixel for emitting invisible light, the plurality of display sub-pixels being spaced apart from the at least one functional sub-pixel in any direction parallel to a bearing surface of the substrate; and a light-absorbing layer disposed between a functional sub-pixel and a display sub-pixel adjacent to each other, wherein the light-absorbing layer is configured to absorb invisible light emitted from the functional sub-pixel.