Bidirectional Gate Driver for Multi-Area Display Operation
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Solution Overview
Problem
Existing display apparatuses lack the capability to drive in both forward and backward scan modes and have limited active areas for separate image display operations.
Innovation Solution
A display apparatus with a gate driver that includes a scan direction controller to output signals in both forward and backward directions, allowing separate operation in multiple active areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a gate driver is designed to drive in only one direction (forward or backward scan mode), then the device complexity is reduced, but the adaptability or versatility is limited
Solution Approach 1:
The gate driver is designed to perform multiple functions by supporting both forward scan mode and backward scan mode operations. The scan direction controller enables the gate driver to adaptively switch between different scanning directions, allowing a single device to serve multiple display configurations and applications, thereby achieving multi-functionality without requiring separate dedicated drivers for each mode
2Adaptability or versatility
If the active area is divided into multiple regions for separate operation, then the adaptability or versatility is improved, but the device complexity increases
Solution Approach 1:
The active area of the display panel is divided into multiple independently controllable regions. Each region can be selectively activated and operated separately through the gate driver's ability to generate scan signals in different directions. This segmentation allows different portions of the display to be used for different purposes simultaneously, enhancing versatility while the unified gate driver design keeps the control complexity manageable
Data Source
AI summary
A display apparatus can include a display panel having an active area in which a plurality of pixels is disposed and a non-active area which encloses the active area, and a gate driver configured to output an output signal in a forward direction or a backward direction according to a scan mode. The gate driver includes a plurality of stages and a scan direction controller which is connected between the plurality of stages to transmit the output signal output from an n-th stage to any one of an n−1-th stage or an n+1-th stage according to the scan mode.