Micro-LED Display Panel Layout for In-Gap Functional Integration

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Solution Overview

Problem

The existing display panels, such as LCD panels integrated with fingerprint sensors, waste space and have a low added value due to the direct superposition of fingerprint sensors on the display panel, leading to inefficient use of space.

Innovation Solution

A display panel design that incorporates micro-LED chips with functional elements like biometric units, antenna units, energy storage units, and storage units in the gaps between the micro-LED chips, allowing for space-efficient integration and enhanced functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If fingerprint sensors are directly superposed on the display panel, then the display panel can provide fingerprint sensing function, but the space is wasted and the added value is low

Engineering Contradiction:
Improvefunctional integrationVSAvoidspace utilization
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent transitions from direct superposition (2D plane occupation) to edge-side placement (utilizing the lateral dimension/gap between pixels). Functional elements are positioned in the non-display area at the edges of pixel units, converting wasted peripheral space into useful functional integration without occupying display area.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent applies different functional elements to different local regions of the display panel. Specifically, functional elements are placed in the gaps between adjacent pixels at the edges of pixel units, where display function is not required, thereby achieving local functional integration without affecting the overall display quality.

Inventive Principle:
Principle #3Local quality

2Area of stationary object

If functional elements are integrated in the gap between micro-LED chips, then space utilization is improved and added value is enhanced, but the manufacturing complexity increases

Engineering Contradiction:
Improvespace utilizationVSAvoidintegration complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent divides the display panel into pixel units, each containing multiple sub-pixels with micro-LED chips. The gaps between these chips within each pixel unit are utilized to house functional elements. This segmentation approach allows functional elements to be integrated at a modular level, reducing overall manufacturing complexity compared to monolithic integration.

Inventive Principle:
Principle #1Segmentation

3Area of moving object

If micro-LED chips are used with small dimensions, then the gap for functional elements is sufficient, but the manufacturing precision requirement increases

Engineering Contradiction:
Improvegap size for functional elementsVSAvoidmicro-LED chip placement precision
Core Design Contradiction:
Area of moving objectVSManufacturing precision

Solution Approach 1:

The patent specifies that micro-LED chip dimensions are controlled within particular ranges (length and width: 1-100 micrometers, height: 1-20 micrometers). By controlling these parameters, the patent ensures sufficient gap size for functional element integration while maintaining manufacturability. The precise parameter ranges balance gap availability with manufacturing feasibility.

Inventive Principle:
Principle #35Parameter changes

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

This design improves the integration and added value of the display panel by utilizing non-display areas for functional elements, reducing thickness, and enhancing user experience through full-screen functionality and space savings.

Implementation Method 1

each of the pixel units includes a sub-pixel, and the sub-pixel includes a first micro-LED chip

Methodology Applied
Scientific EffectLight-emitting diode: Light Emitting Diode

Implementation Method 2

the optical path element is correspondingly disposed above the fingerprint identification sensor

Methodology Applied
Scientific EffectOptical path: Optical Fibre

Data Source

PatentUS20240405003A1Display panel and display device
Publication Date: 2024.12.05 WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
  • US20240405003A1 patent drawing
  • US20240405003A1 patent drawing
  • US20240405003A1 patent drawing

AI summary

The present application provides a display panel and a display device. The display panel includes a plurality of pixel units, wherein each of the pixel units includes a sub-pixel, the sub-pixel includes a first micro-LED chip, and in a top view, a gap is provided between adjacent ones of the first micro-LED chips; and a functional element disposed at the gap, wherein a function of the functional element is different from a display function of the sub-pixel, in order to improve integration of the display panel, increase an added value of the display panel, and save a space of the whole machine.