Display Apparatus Gate Driver Segmentation Bezel Reduction
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Solution Overview
Problem
Conventional display apparatuses with flat panel displays have a wide bezel width due to the placement of gate drivers in non-display regions, which can lead to a noticeable boundary between display parts and affect display quality.
Innovation Solution
The display apparatus is designed with a gate line extending in one direction, featuring a non-display part, a first display part, a second display part, and a third display part, where the second gate circuit is placed in the first display part, reducing bezel width by distributing gate driver components and optimizing light blocking parts to minimize transmittance differences between display parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the gate driver is disposed in the non-display region, then the gate driver can be easily integrated with the display panel, but the bezel width increases
Solution Approach 1:
The gate driver is divided into multiple gate circuits (first gate circuit, second gate circuit, third gate circuit) that are distributed across different regions. The first gate circuit is in the non-display region, the second gate circuit is in the first display part, and the third gate circuit is in the second display part. This segmentation allows the gate driver functionality to be spread out, reducing the concentration of non-display elements in one area and thereby reducing the bezel width while maintaining ease of manufacture through modular integration.
2Device complexity
If the gate driver is disposed in the non-display region, then the circuit layout is simplified, but the boundary between display parts becomes noticeable
Solution Approach 1:
Different regions of the display panel are given different qualities by introducing light blocking parts with varying areas. The first light blocking part (in the non-display region) has a larger area, the second light blocking part (in the first display part) has a medium area, and the third light blocking part (in the second display part) has a smaller area. This local differentiation in light blocking areas compensates for the presence of gate circuits in display regions, ensuring uniform visual appearance and eliminating noticeable boundaries while maintaining simplified circuit layout.
3Manufacturing precision
If light blocking parts are increased to mask gate circuits in display regions, then display quality is improved, but the area available for pixel electrodes decreases
Solution Approach 1:
The area of light blocking parts is optimized based on their location and function. Instead of using uniformly large light blocking parts throughout, the patent applies a gradient approach where the first light blocking part has a larger area to mask the first gate circuit in the non-display region, the second light blocking part has a medium area to mask the second gate circuit in the first display part, and the third light blocking part has a smaller area in the second display part. This parameter optimization ensures adequate masking for display quality while maximizing pixel electrode area by using the minimum necessary light blocking coverage in each region.
Data Source
AI summary
A display apparatus includes a display panel including first, second, and third display parts and a gate driver. The gate driver includes a first gate circuit disposed in a non-display part of the display panel and a second gate circuit disposed in the first display part of the display panel and applies a gate signal to a gate line. The first, second, and third display parts include first, second, and third light blocking parts, respectively. The second light blocking part has an area smaller than an area of the first light blocking part and greater than an area of the third light blocking part.