Display Panel Switch Circuit Reduces Data Line Count
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Solution Overview
Problem
Display panels with non-rectangular areas face issues of visible boundaries due to data lines of different lengths, leading to increased structural complexity and manufacturing costs when separate driving chips are required for auxiliary display areas.
Innovation Solution
A display panel design with a main and auxiliary display area, utilizing multiple second scanning units and switch units connected to a single main driving chip, allowing data lines to be driven via fewer second data lines, eliminating the need for additional sub-driving chips and simplifying wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If data lines are arranged separately in main and auxiliary display areas, then visible boundaries are eliminated, but structural complexity increases and manufacturing cost rises
Solution Approach 1:
The patent merges the driving functions for both main and auxiliary display areas into a single main driving chip. The auxiliary display area shares the same data lines and gate lines as the main display area, eliminating the need for separate sub-driving chips. This consolidation reduces structural complexity while maintaining uniform data line impedance across both areas, thereby eliminating visible boundaries.
2Adaptability or versatility
If separate sub-driving chip is provided for auxiliary display area, then data lines can be driven independently, but manufacturing cost increases
Solution Approach 1:
The main driving chip is designed to perform multiple functions: it drives both the main display area and the auxiliary display area through shared data lines and gate lines. This multi-functional design eliminates the need for additional sub-driving chips, reducing manufacturing cost while maintaining the adaptability to drive different display areas independently when needed.
3Ease of operation
If multiple second data lines are provided for each switch unit group, then all first data lines can be driven, but the number of data lines increases
Solution Approach 1:
The patent segments the driving function by introducing switch unit groups that can selectively connect different first data lines to a reduced number of second data lines. Each switch unit group contains multiple switch units that can be independently controlled, enabling one second data line to serve multiple first data lines through time-division or selective switching, thereby reducing the total number of data lines while maintaining full driving capability.
Data Source
AI summary
The present disclosure provides a display panel, a driving method and a display device. The display panel includes first data lines and first gate lines in an auxiliary display area, a first scanning unit, M second scanning units, M switch unit groups corresponding to the M second scanning units, M second data lines corresponding to the M switch unit groups, where M is an integer greater than 1. Each second scanning unit has output terminals and a control terminal connected to a main driving chip. Each switch unit group includes a plurality of switch units having a plurality of control terminals connected to the output terminals of the second scanning unit, a plurality of first terminals respectively connected to the first data lines, and second terminals. Each second data lines is connected to the main driving chip and the second terminals of the switch units.