Display Panel GOA Layout for Narrow Frame Scanning
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Solution Overview
Problem
The use of gate driver on array (GOA) in display panels requires multiple drive circuits for each row of pixel circuits, leading to a wide frame that contradicts the design of a narrow frame, which is undesirable in modern display technologies.
Innovation Solution
The display panel is designed with a first drive circuit and a second drive circuit arranged in a specific direction, where the second drive circuit is positioned between the first drive circuit and the display part, and each drive module outputs signals to multiple adjacent sub-pixel rows, reducing the number of drive modules to minimize frame width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple drive circuits are incorporated in the GOA for each row of pixel circuits, then the scanning signal requirements are met, but the frame width becomes relatively wide
Solution Approach 1:
The drive circuit is segmented into two distinct circuits: a first drive circuit that generates scanning signals and a second drive circuit that transmits them. This segmentation allows the second drive circuit to be disposed between the first drive circuit and the display part, optimizing space utilization and reducing frame width while maintaining reliable signal delivery to each row of pixel circuits.
Solution Approach 2:
The patent rearranges the spatial configuration of drive circuits by disposing the second drive circuit between the first drive circuit and the display part in a direction different from the conventional layout. This dimensional reorganization reduces the frame width occupied by drive circuits while ensuring proper signal transmission to pixel circuits.
2Length of stationary object
If the frame width is reduced for narrow frame design, then the aesthetic requirement is met, but the GOA cannot accommodate multiple drive circuits
Solution Approach 1:
By dividing the drive functionality into two separate circuits with distinct roles, the design accommodates narrow frame requirements while maintaining the necessary drive circuit capabilities. The first drive circuit handles signal generation and the second handles transmission, allowing compact arrangement.
Solution Approach 2:
The second drive circuit serves multiple functions: it acts as a transmission path for scanning signals, occupies optimized spatial positioning between the first drive circuit and display part, and enables narrow frame design. This multi-functionality allows the system to meet both aesthetic and functional requirements.
3Length of stationary object
If the second drive circuit is disposed between the first drive circuit and the display part, then the frame width is reduced, but the circuit layout complexity increases
Solution Approach 1:
The segmented architecture of two drive circuits with clear functional boundaries simplifies the overall layout complexity. Each circuit has a specific role and positioning, making the intermediate arrangement of the second drive circuit manageable and systematic rather than chaotic.
Data Source
AI summary
A display panel includes a display part including multiple sub-pixel rows, and a drive part including a first drive circuit and a second drive circuit. The first drive circuit includes multiple first drive modules, and the second drive circuit includes multiple second drive modules. Each of the first drive modules is electrically connected to a pixel circuit in each of sub-pixel units of each of k adjacent sub-pixel rows, and each of the second drive modules is electrically connected to the pixel circuit in each of the sub-pixel units of each of j adjacent sub-pixel rows, where each of k and j is a positive integer, k is less than or equal to j, and j is greater than or equal to 2.