Display Substrate Bezel Region Data Line Routing

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Solution Overview

Problem

Existing display technologies face challenges in achieving a high screen-to-body ratio while maintaining effective data signal transmission and minimizing light transmittance interference from wiring in display substrates.

Innovation Solution

A display substrate design featuring a base substrate with multiple pixel circuits, light emitting elements, and data lines arranged in a specific configuration, including a first display region with sub-regions and a second display region, where the data lines are structured to connect pixel circuits across sub-regions without direct wiring in the second display region, thereby avoiding light transmittance interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If data lines are directly wired in the second display region, then data signal transmission is achieved, but light transmittance is interfered with

Engineering Contradiction:

Improvedata signal transmissionVSAvoidlight transmittance

Core Design Contradiction:

ReliabilityVSIllumination intensity

Solution Approach 1:

The display substrate is divided into a first display region and a second display region. The first display region contains pixel circuits and light emitting elements, while the second display region contains only transparent electrodes without pixel circuits. Data lines are routed through the first display region to connect with the second display region, avoiding direct wiring in the second region and preserving light transmittance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The first display region serves as an intermediary zone that houses the pixel circuits and data line connections. This intermediary structure allows data signals to be transmitted to the second display region without requiring physical wiring within the second region, thus maintaining its optical transparency.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Area of stationary object

If screen-to-body ratio is increased by reducing bezel width, then display area is improved, but data signal transmission becomes more difficult

Engineering Contradiction:

Improvedisplay areaVSAvoiddata signal transmission structure

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The display substrate is segmented into functional regions: the first display region containing pixel circuits and light emitting elements, and the second display region containing only transparent electrodes. This segmentation allows data lines to be routed through the first region to the second region, enabling signal transmission in a high screen-to-body ratio design without increasing structural complexity.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250160156A1Display Substrate Having Bezel Region at Periphery of First Display Region and Second Display Region and Preparation Method Thereof, and Display Apparatus Having The Same

Publication Date: 2025.05.15 CHENGDU BOE OPTOELECTRONICS TECH CO LTD

AI summary

A display substrate includes a base substrate, multiple pixel circuits, multiple first light emitting elements, and at least one first data line. The base substrate includes a first display region and a second display region, wherein the first display region at least partially surrounds the second display region. The first display region includes: a first sub-display region and a second sub-display region located on opposite sides of the second display region along a first direction, and a third sub-display region located on at least one side of the second display region along a second direction. The first data line includes a first sub-data line, a second sub-data line, and a third sub-data line connected with the first sub-data line and the second sub-data line.