Stretchable Display Gate Driver Layout for Narrow Bezel Uniformity
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Solution Overview
Problem
Conventional display devices face challenges in minimizing bezel area, achieving uniform luminance, and providing high resolution and large display areas, especially when flexibility and stretchability are required.
Innovation Solution
A display device with a lower and upper substrate, featuring a pattern layer with plate and line patterns, and a gate driver disposed in a gate-in array manner to minimize bezel area and improve luminance uniformity, while allowing for high resolution and large display areas through flexible and stretchable design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the gate driver is disposed outside the active area in a conventional manner, then the structure is simple and easy to manufacture, but the bezel area increases and luminance uniformity deteriorates
Solution Approach 1:
The gate driver is merged with the active area by disposing it in an intermediate area within the active area rather than outside. This integration eliminates the need for separate bezel areas while maintaining the gate driver functionality, thereby reducing overall bezel area and improving luminance uniformity across the display.
Solution Approach 2:
The gate driver is repositioned from a conventional external location to an intermediate area within the active area, utilizing the internal spatial dimension of the display structure. This dimensional reorganization allows the gate driver to occupy space that would otherwise be part of the active display region, effectively reducing bezel area without compromising manufacturing simplicity.
2Ease of manufacture
If the gate driver is disposed outside the active area in a conventional manner, then the structure is simple and easy to manufacture, but the gate signal delay increases and luminance uniformity deteriorates
Solution Approach 1:
The gate driver is integrated into the active area, specifically positioned in an intermediate area, which reduces the distance for gate signal transmission to pixels. This spatial integration minimizes signal delay and ensures more uniform luminance across the display while maintaining manufacturing simplicity through the gate-in-array approach.
Solution Approach 2:
The gate driver is pre-positioned in the intermediate area of the active area during the manufacturing process, establishing optimal signal transmission paths before the display is assembled. This preliminary positioning ensures minimal gate signal delay and uniform luminance output from the start, without complicating the manufacturing process.
3Adaptability or versatility
If the display device uses a flexible and stretchable design, then the adaptability and form factor versatility improve, but the risk of component damage during deformation increases
Solution Approach 1:
The display device employs flexible substrates and thin-film structures for the gate driver and other components, allowing the entire assembly to bend and stretch without rigid structural failures. This flexible construction enables form factor versatility while reducing the risk of component damage during deformation.
Solution Approach 2:
The display device is designed with dynamic flexibility, allowing it to adapt its shape through bending and stretching. The gate driver and other components are integrated in a manner that accommodates these dynamic changes, ensuring reliability during deformation while providing versatile form factors.
Data Source
AI summary
A display device can include a lower substrate having an active area and a non-active area and being stretchable, a pattern layer disposed on the active area of the lower substrate and including a plurality of first plate patterns and a plurality of first line patterns, a plurality of pixels disposed on each of the first plate patterns, a plurality of connection lines disposed on the first line patterns and configured to connect the plurality of pixels, and a gate driver including a plurality of stages to supply a gate signal to the plurality of pixels through the plurality of connection lines. The gate driver can be disposed on the active area of the lower substrate.