Display Panel Lower Bezel Width Reduction via Terminal Reorientation

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Solution Overview

Problem

Current display panels face a technical challenge in achieving a narrow bezel due to the gathering of fan-out traces and connecting terminals in the lower bezel, resulting in a wider bezel width.

Innovation Solution

The display panel design includes a terminal region with connecting terminals positioned in the lower bezel, where the included angle between the terminal and the bezel meets a preset condition, and the width of the terminal is greater than a threshold, allowing for a reduced length and thus a narrower bezel width, while also utilizing additional terminal regions in the left and right bezels to accommodate connecting terminals connected to GOA and anti-static circuits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If fan-out traces are gathered in the middle of the lower bezel, then the connecting terminals can be connected, but the lower bezel width becomes wider

Engineering Contradiction:
Improveconnecting terminal connectionVSAvoidlower bezel width
Core Design Contradiction:
Ease of manufactureVSLength of stationary object

Solution Approach 1:

The patent changes the orientation of the connecting terminal from a horizontal layout (parallel to the lower bezel) to a vertical layout (perpendicular to the lower bezel). This dimensional change allows the terminal to extend in the depth direction rather than the width direction, thereby reducing the lower bezel width while maintaining adequate bonding area for connection.

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

2Reliability

If the width of the connecting terminal is increased, then the bonding area is sufficient, but the lower bezel width increases

Engineering Contradiction:
Improvebonding areaVSAvoidlower bezel width
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

The patent resolves this contradiction by reorienting the connecting terminal perpendicular to the lower bezel. This allows the terminal's length to extend in the vertical direction (providing sufficient bonding area) while its width occupies minimal horizontal space, thus maintaining reliable bonding without increasing the lower bezel width.

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

Solution Approach 2:

The patent changes the geometric parameters of the connecting terminal by rotating its orientation from horizontal to vertical. This parameter change transforms the terminal's dimensional contribution from the width direction to the depth direction, allowing sufficient bonding area while minimizing impact on lower bezel width.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11378851B2Display panel and display device
Publication Date: 2022.07.05 WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
  • US11378851B2 patent drawing
  • US11378851B2 patent drawing
  • US11378851B2 patent drawing

AI summary

The present application provides a display panel and a display device. The display panel includes a display region, a non-display region, and a terminal region. The non-display region includes a lower bezel region at a lower end of the display region. The terminal region is provided with a connecting terminal, the terminal region includes a first terminal region, and the first terminal region is positioned in the lower bezel region, wherein an included angle between a longitudinal direction of a first connecting terminal and a lower bezel in the first terminal region meets a preset condition, and a width of the first connecting terminal is greater than a threshold. This application reduces the width of the lower bezel.