Display Substrate Camera Region Layout for Full-Screen Integration

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Solution Overview

Problem

The integration of front cameras under display substrates in Full Display with Camera (FDC) technology limits the full-screen display area, as the camera area cannot be used for image display when the camera is not in use.

Innovation Solution

A display substrate design with a first display region for light-emitting devices and a second display region for pixel circuits, where the second region surrounds the first, allowing for efficient electrical connections through wire groups and enabling full-screen display even when the camera is not active.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If front cameras are placed under display substrates in FDC technology, then the display area is increased, but the camera area cannot be used for image display when the camera is not in use

Engineering Contradiction:
Improvedisplay areaVSAvoidcamera area utilization
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The camera area under the display substrate is designed to serve dual functions: it houses the front camera when needed, and acts as an additional display region when the camera is not in use. This multi-functionality allows the same physical space to be utilized for both camera operations and image display, resolving the contradiction between increasing display area and maintaining camera area versatility.

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

2Area of stationary object

If pixel circuit groups are located in the second display region surrounding the first display region, then the first display region can be fully utilized for light-emitting devices, but additional wire groups are needed to connect light-emitting devices and pixel circuits

Engineering Contradiction:
Improvefirst display region utilizationVSAvoidwire group connections
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent transitions from a conventional layout where pixel circuits are located directly beneath light-emitting devices in the same display region to a spatial reconfiguration where pixel circuit groups are positioned in a second display region that surrounds the first display region. This dimensional and spatial redistribution allows the first display region to be fully dedicated to light-emitting devices while still maintaining electrical connections through strategically routed wire groups, effectively resolving the contradiction between display region utilization and connection complexity.

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

Data Source

PatentUS20250126991A1Display Panel, Display Module and Display Apparatus
Publication Date: 2025.04.17 CHENGDU BOE OPTOELECTRONICS TECH CO LTD
  • US20250126991A1 patent drawing
  • US20250126991A1 patent drawing
  • US20250126991A1 patent drawing

AI summary

A display substrate includes: N first light-emitting device groups located in a first display region and arranged sequentially in a first direction; N first pixel circuit groups located in a second display region and arranged sequentially in the first direction; and a wire group connecting a first light-emitting device group and a first pixel circuit group. The first light-emitting device group includes M first light-emitting devices arranged sequentially in the first direction, the first pixel circuit group includes M first pixel circuits arranged sequentially in the first direction, and the wire group includes M wires arranged in parallel. A 1st first light-emitting device group is electrically connected to a first pixel circuit group other than a 1st pixel circuit group, and/or an Nth first light-emitting device group is electrically connected to a first pixel circuit group other than an Nth first pixel circuit group.