Array Substrate With Shared Data Lines For Electronic Paper Displays
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Solution Overview
Problem
Existing electronic paper display systems require a large number of control chips and flexible circuit boards, leading to high costs due to the independent control of small display modules with close spacing.
Innovation Solution
An array substrate design with intersecting data lines and scanning lines forms sub-pixels, where data lines in each sub-display area are insulated but connected across areas, and control signal lines control each sub-display area independently, reducing the number of data signal pins and control chips needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple small electronic paper display modules are arranged closely to form an oblong display screen, then the display area is increased and display performance is improved, but the number of control chips and flexible circuit boards must be increased, leading to high costs
Solution Approach 1:
The patent merges the control functions of multiple independent display modules into a single control chip. By connecting multiple sub-display areas through shared data signal lines and control signal lines, the system achieves centralized control, eliminating the need for separate control chips for each module and reducing overall device complexity
Solution Approach 2:
The control signal lines and data signal lines are designed to serve multiple sub-display areas simultaneously. A single control chip can control multiple sub-display areas by time-division multiplexing or parallel control, making the control system universal and adaptable to different display configurations without requiring additional control chips
2Adaptability or versatility
If multiple independent electronic paper display modules are used, then each module can be independently controlled, but multiple flexible circuit boards and control chips are required, increasing cost and device complexity
Solution Approach 1:
The display screen is segmented into multiple sub-display areas that can be independently controlled through control signal lines. Each sub-display area maintains its independence in terms of display content, while the control infrastructure is shared, reducing the number of flexible circuit boards needed
Solution Approach 2:
Control signal lines act as intermediaries between the single control chip and multiple sub-display areas. These signal lines enable independent control of each sub-display area without requiring separate flexible circuit boards, as the control chip can selectively activate and control specific sub-display areas through the shared signal lines
Data Source
AI summary
Provided are an array substrate, an electronic paper display panel and a drive method thereof and a display device. A display area includes a plurality of sub-display areas, a plurality of data lines in each sub-display area are electrically insulated from each other, corresponding data lines in different sub-display areas are electrically connected to each other, and a control signal line is configured to control display time of each sub-display area. When a control chip and a flexible circuit board are employed, only a small number of control chips and flexible circuit boards may drive the plurality of sub-display areas to display pictures.