Display Device Switching Signal Lines for Pixel Alignment
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Solution Overview
Problem
Existing display devices face difficulties in easily shifting the display position within a display portion without offsetting pixels, particularly when stacking two display panels to achieve a high contrast ratio.
Innovation Solution
A display device with a plurality of driving circuits, terminals, and signal lines, where switches allow for different connection modes between the terminals and signal lines, enabling the display of different images by changing the connection configuration, thereby shifting the image display by a pitch of two adjacent signal lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If two display panels are stacked to achieve high contrast ratio, then image quality is improved, but pixel alignment precision deteriorates due to difficulty in matching panels without offsetting pixels
Solution Approach 1:
The patent applies the dynamics principle by making the signal line connections adjustable through switches. The signal lines can be dynamically connected to different terminals (e.g., connecting to (m-2)th, (m-1)th, or mth signal lines based on switch states) to compensate for pixel alignment offsets between stacked panels. This dynamic reconfiguration allows the system to adapt to manufacturing variations and maintain proper pixel correspondence without requiring perfect initial alignment.
2Ease of operation
If display position shifting is implemented without switch mechanisms, then device complexity is reduced, but ease of operation deteriorates due to difficulty in shifting display position within display portion
Solution Approach 1:
The patent applies segmentation by dividing the signal line connections into multiple independently controllable segments. Each signal line connection is controlled by separate switches that can be independently configured, allowing granular control over display position shifting. This segmentation enables flexible adjustment of display positions while maintaining a modular and manageable system architecture.
3Adaptability or versatility
If multiple connection modes are implemented for signal lines, then adaptability is improved for displaying different images, but device complexity increases due to additional switches and connection configurations
Solution Approach 1:
The patent applies the universality principle by designing the switch network to serve multiple functions. The same switch configuration mechanism enables various connection modes including normal display mode, display position shifting mode, and defective pixel compensation mode. This multi-functional design allows a single hardware architecture to support diverse operational requirements without requiring separate dedicated circuits for each function.
Data Source
AI summary
A display device includes a plurality of driving circuits, a plurality of terminals formed in each of the plurality of driving circuits, a plurality of signal lines connected to the plurality of terminals, a plurality of pixel electrodes, each of the plurality of pixel electrodes connected to each of the plurality of signal lines; and a switch configured to change a connection mode between the plurality of terminals and the plurality of signal lines. The plurality of signal lines includes a first line, a second line and a third line arrayed in this order. The plurality of terminals includes a first terminal. The switch, configured to change from a first connection mode to a second connection mode, the first terminal connecting the first line and the second line in the first connection mode, and the first terminal connecting the second line and the third line in the second connection mode.