Display Device Multiplex Switch Placement for Frame Size Reduction
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Solution Overview
Problem
Existing display devices face challenges in efficiently managing data voltages and gate signals within their structure, particularly in optimizing the placement of multiplex switches to reduce frame size and maintain an even aperture ratio.
Innovation Solution
The display device incorporates a source driver in a non-display area and multiplex switches in the display area, which are controlled by multiplex signals to distribute data voltages across data lines, allowing for efficient data transmission and reducing frame size by avoiding placement in the non-display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiplex switches are disposed in the non-display area, then the data voltage distribution is simplified, but the frame size increases
Solution Approach 1:
The patent moves the multiplex switches from the non-display area (one spatial dimension) to the display area (another spatial dimension), specifically utilizing the pixel electrode region. This dimensional relocation allows the frame to exclude the display area from its boundary definition, thereby reducing frame size while maintaining the data voltage distribution function through the multiplex switches positioned within the display region.
2Area of stationary object
If multiplex switches are disposed in the display area, then the frame size is reduced, but the aperture ratio uniformity deteriorates
Solution Approach 1:
The patent applies local quality by positioning multiplex switches at specific local regions within the display area, namely at pixel electrodes corresponding to specific data lines. This localized placement strategy ensures that only specific pixel regions are occupied by switch structures, while other regions maintain uniform aperture characteristics, thereby preserving overall aperture ratio uniformity across the display.
Solution Approach 2:
The patent employs a systematic copying strategy where multiplex switches are placed at multiple pixel electrode locations that correspond to different data lines. By replicating the switch structure at these specific locations rather than uniformly across all pixels, the design achieves both frame size reduction and maintains aperture uniformity through strategic distribution of the switch elements.
3Device complexity
If source driver is disposed in the non-display area, then the data voltage generation is simplified, but the available display area is reduced
Solution Approach 1:
The patent extracts the source driver from the non-display area and relocates it to the display area. This extraction and relocation strategy allows the non-display area to be fully utilized for display purposes, maximizing the display area while maintaining the data voltage generation function through the repositioned source driver structure.
Data Source
AI summary
A display device is disclosed. The display device comprises: a plurality of data lines are configured to receive a plurality of data voltages from a source driver, wherein the source driver is disposed in a non-display area of the display device; and a first multiplex switch is disposed in a display area of the display device and configured in response to a first multiplex signal, to provide a first data voltage of the data voltages to a first data line of the data lines.