Display Driver Layout for Narrow-Bezel Digital Pixel Memory Panels
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Solution Overview
Problem
Display devices with digital driving systems face challenges in minimizing the peripheral area around the display area, as various lines and circuits are required for controlling memories, leading to an increased frame width.
Innovation Solution
The display device incorporates a first driver unit and a second driver unit with specific circuit layouts, including arc-shaped configurations and divided circuit units, to minimize the peripheral area and reduce frame width, while optimizing the layout of signal and scanning lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If various lines and circuits are provided in the peripheral area to control memories, then the digital driving system can function properly, but the frame width increases
Solution Approach 1:
The driver unit is divided into first and second driver units positioned at different locations in the peripheral area. The first driver unit is closer to the display area while the second driver unit is positioned further away, allowing the circuits to be segmented and distributed to reduce the overall frame width while maintaining proper control functionality.
Solution Approach 2:
The patent utilizes the depth dimension by positioning driver units at different distances from the display area rather than only arranging them in the planar peripheral area. This three-dimensional arrangement allows circuits to be routed more efficiently, reducing the required frame width while maintaining all necessary control connections.
2Length of stationary object
If driver units are positioned closer to the display area, then the frame width is reduced, but the circuit layout becomes more complex
Solution Approach 1:
By segmenting the driver unit into multiple portions positioned at different locations, the patent simplifies the overall circuit layout. Each segment can be independently routed to the display area, making the layout more manageable and reducing the complexity compared to a single consolidated driver unit.
Solution Approach 2:
The patent introduces intermediary connection structures that facilitate the routing between the distributed driver unit segments and the display area. These intermediaries simplify the connection process and reduce layout complexity by providing standardized interfaces and routing paths.
Data Source
AI summary
According to one embodiment, a display device includes a pair of substrates including a display area in which pixels are arranged, pixel electrodes and memories provided in the pixels, signal lines supplied with digital signals, switching elements connecting the memories and the signal lines, scanning lines supplied with scanning signals, a first driver unit, and a second driver unit. The first driver unit is provided in a peripheral area around the display area, and supplies the digital signal to the signal line. The second driver unit is provided in the peripheral area, and supplies the scanning signal to the scanning line. In the display device, at least a part of the first driver unit is provided between the display area and the second driver unit.