Display Driving Apparatus Peripheral Area Reduction
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Solution Overview
Problem
Display driving apparatuses face an increase in peripheral area due to the curvature of the lower corner of the display panel, leading to a larger non-display area that affects the thickness and usability of display devices.
Innovation Solution
The design includes a substrate with a display area and a peripheral area, featuring a pad portion with first and second scan pads, scan lines, and data lines, where the number of pixels connected to each scan line varies, and the scan lines are configured to transmit scan signals in a pixel-row unit, with stages connected to clock pads to generate and output scan signals, reducing the need for stages along the curvature and thus minimizing the peripheral area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the lower corner of the display panel has a curvature, then the display area is expanded, but the peripheral area increases
Solution Approach 1:
The scan driving circuit is divided into multiple stages, with only necessary stages placed in the peripheral area. Specifically, the display panel is segmented into different scanning regions (first scanning region with first scan lines, second scanning region with second scan lines) that can be driven by different numbers of stages, allowing optimized placement of driving circuits.
Solution Approach 2:
Different regions of the display panel are assigned different scanning configurations. The first scanning region uses a different number of scan lines and stages compared to the second scanning region, allowing the peripheral area to be minimized while maintaining proper driving coverage for each region's specific requirements.
2Adaptability or versatility
If more stages are added to drive scan lines, then the scanning coverage is improved, but the peripheral area increases
Solution Approach 1:
The scan driving circuit is divided into multiple stages, with only necessary stages placed in the peripheral area. Specifically, the display panel is segmented into different scanning regions (first scanning region with first scan lines, second scanning region with second scan lines) that can be driven by different numbers of stages, allowing optimized placement of driving circuits.
Solution Approach 2:
The scan driving circuit stages are designed to perform multiple functions: they drive both the first scan lines and the second scan lines, allowing a reduced number of stages to provide extended scanning coverage across different regions of the display panel.
Data Source
AI summary
A display panel includes: a substrate including a display area and a peripheral area; a plurality of pixels arranged in the display area; a pad portion arranged in the peripheral area and including a first clock pad, a plurality of first scan pads, and a plurality of data pads; a first scan driving circuit including a plurality of first stages; a plurality of scan lines including a plurality of first scan lines respectively connected to the plurality of first scan pads, and a plurality of second scan lines respectively connected to the plurality of first stages; and a plurality of data lines respectively extending in a second direction and connected to corresponding data pads among the plurality of data pads and pixels.