Sub-Pixel Transfer Layout for Narrow-Border Display Panels
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Solution Overview
Problem
Display panels face challenges in reducing border widths while maintaining display quality due to interference between gate driving signals and data signals, which affects the optical characteristics and appearance.
Innovation Solution
The display panel incorporates sub-pixel structures with transfer elements that are electrically connected to scan lines, allowing for staggered arrangements to minimize interference and optimize brightness distribution, thereby reducing the visibility of abnormal brightness and enhancing display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the gate driving circuit is disposed on the same side of the active area to reduce border width, then the border width is reduced, but the gate driving signal interferes with data signals affecting display quality
Solution Approach 1:
The gate driving circuit is divided into two separate circuits: a first gate driving circuit disposed on one side of the active area and a second gate driving circuit disposed on the other side. This segmentation eliminates the signal interference problem while maintaining narrow borders, as each circuit controls specific scan lines without interfering with data signals on the opposite side.
Solution Approach 2:
The gate driving circuit is extracted from the single-side configuration and separated into two independent circuits positioned on opposite sides of the active area. This extraction removes the harmful electromagnetic interference between gate and data signals while achieving the desired narrow border effect.
2Ease of operation
If transfer elements are interspersed in the pixel array to connect scan lines to the gate driving circuit, then the gate driving circuit can be positioned on the same side, but display quality deteriorates due to signal interference
Solution Approach 1:
The pixel array is divided into a first pixel array and a second pixel array, with transfer elements only in the first pixel array. The second pixel array uses direct scan line connections without transfer elements, eliminating signal interference while maintaining ease of circuit positioning and preserving display quality.
Solution Approach 2:
Different regions of the pixel array are assigned different connection methods: the first pixel array uses transfer elements for compact routing, while the second pixel array uses direct scan line connections for superior signal quality. This local differentiation optimizes both ease of operation and manufacturing precision in their respective regions.
Data Source
AI summary
A display panel includes a plurality of sub-pixel structures and a plurality of transfer elements. The sub-pixel structures include a plurality of first sub-pixel structures. A data line of each of the first sub-pixel structures is disposed adjacent to a corresponding transfer element, and a scan line of each of the first sub-pixel structures is electrically connected to the corresponding transfer element. The first sub-pixel structures include a plurality of first-type sub-pixel structures and a plurality of second-type sub-pixel structures. When the display panel displays a grayscale picture, each of the first-type sub-pixel structures has first brightness, each of the second-type sub-pixel structures has second brightness. The first brightness is less than the second brightness. A total number of the first sub-pixel structures of the display panel is A, a number of the first-type sub-pixel structures in the first sub-pixel structures is a, and 50%<(a/A)<100%.