Under-Display Camera Panel for Eye-Tracking Accuracy

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current electronic devices with single camera limitations hinder effective eye-tracking technology, especially in large-screen applications, leading to reduced accuracy and aesthetic issues when multiple cameras are required.

Innovation Solution

A display panel design incorporating multiple camera modules hidden under the display panel, with strategically positioned image capturing regions and pixel modules, including thin film transistors and light-emitting units, to enhance eye-tracking accuracy while maintaining aesthetic appeal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple cameras are added to improve eye-tracking accuracy, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improveeye-tracking accuracyVSAvoidcamera module complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple camera modules into a single integrated structure located at the bottom of the display panel. Multiple imaging units are merged into one compact assembly, reducing device complexity while maintaining the capability for accurate eye-tracking through multiple cameras.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The camera module is designed to serve multiple functions: eye-tracking, facial recognition, and aesthetic mode photography. This multi-functionality allows the same hardware configuration to achieve various goals, including improved measurement precision for eye-tracking, without proportionally increasing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If multiple cameras are added to improve eye-tracking accuracy, then measurement precision is improved, but the appearance aesthetic deteriorates

Engineering Contradiction:
Improveeye-tracking accuracyVSAvoidappearance aesthetic
Core Design Contradiction:
Measurement precisionVSShape

Solution Approach 1:

Multiple cameras are merged into a single integrated module positioned at the bottom center of the display panel. This consolidation creates a unified, symmetrical design that maintains appearance aesthetic while enabling accurate eye-tracking through multiple cameras working together.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The camera module is positioned at the bottom center of the display panel, creating a balanced and symmetrical appearance. This strategic placement avoids asymmetrical distribution of multiple cameras that would compromise aesthetic, while still enabling accurate eye-tracking functionality.

Inventive Principle:
Principle #4Asymmetry

3Adaptability or versatility

If camera modules are positioned on the display panel, then eye-tracking functionality is enabled, but the display area is reduced

Engineering Contradiction:
Improveeye-tracking functionalityVSAvoiddisplay area
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The camera modules are positioned in the vertical dimension at the bottom edge of the display panel, rather than occupying horizontal display area. This dimensional placement allows eye-tracking functionality to be added without reducing the effective display area, as the cameras are located in the non-display border region.

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

Data Source

PatentUS11322529B2Display panel, electronic device, and method of operating same
Publication Date: 2022.05.03 WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
  • US11322529B2 patent drawing
  • US11322529B2 patent drawing
  • US11322529B2 patent drawing

AI summary

The present invention relates to a display panel, an electronic device, and an operation method of the electronic device. The display panel is divided into a display region and a plurality of image capturing regions. Each of the image capturing regions includes: a camera module; a pixel module disposed on the camera module; and the pixel module includes a plurality of sub-pixel units, each of the sub-pixel units spaced apart on the camera module. By adding a plurality of cameras hidden under the display panel, the invention can not only improve accuracy of eye-tracking technology, but also prevent the problem of reduced appearance aesthetics caused by the plurality of cameras.