Circular Display Device with Split Data Driving Circuits
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Solution Overview
Problem
Circular liquid crystal display panels face challenges in reducing bezel size and data clock frequency due to the continuous horizontal placement of data driving circuits, leading to increased display device size.
Innovation Solution
The implementation of multiple data driving circuits disposed in opposite positions around the circular display panel, with one circuit driving odd data lines and the other even data lines, allowing for alternating or sequential application of data voltage, thereby reducing the bezel size and enabling effective driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If multiple data driving circuits are disposed continuously in horizontal direction, then data clock frequency can be reduced, but bezel size increases
Solution Approach 1:
The data driving circuit is divided into multiple independent driving circuits (first data driving circuit and second data driving circuit). Each circuit drives a separate group of data lines (first-group data lines and second-group data lines), allowing parallel operation to reduce data clock frequency while distributing the physical layout to minimize bezel area.
Solution Approach 2:
Instead of arranging multiple data driving circuits continuously in one horizontal direction, the invention positions them at opposite positions around the circular display panel (e.g., left and right sides). This spatial redistribution in multiple dimensions reduces the horizontal extension and minimizes the bezel size while maintaining parallel driving capability.
2Area of stationary object
If data driving circuits are disposed at opposite positions, then bezel size is reduced, but data line routing complexity increases
Solution Approach 1:
The data lines are segmented into two distinct groups: first-group data lines connected to the first data driving circuit and second-group data lines connected to the second data driving circuit. This segmentation simplifies the routing by dedicating separate line sets to each driving circuit position, reducing cross-interference and routing complexity despite the opposite positioning.
Data Source
AI summary
Provided is a display device having the following structure and driving method thereof. The display device comprises a circular display panel including an active area on which an image is displayed and a non-active area on which no image is displayed, a gate driving circuit disposed in the non-active area to drive a plurality of gate lines, a first data driving circuit disposed in the non-active area to drive first-group data lines in the circular display panel, and a second data driving circuit disposed in the non-active area, in a position opposite to the first data driving circuit with respect to the active area, to drive second-group data lines in the circular display panel. The frequency of a data clock is reduced using a plurality of data driving circuits in a pad area. The bezel size of a circular display panel is reduced.