Multi-Image Display Synchronization via Timing Adjustment
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Solution Overview
Problem
Conventional multi-image display systems using liquid crystal display devices experience image displacements when displaying moving images across multiple aligned apparatuses, due to differences in write operations timing between upper and lower devices.
Innovation Solution
A display apparatus and method that adjusts the write speed of image signals and shifts the write start timing based on the number and location of display apparatuses in a vertical alignment, ensuring synchronized image display across multiple liquid crystal display devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple liquid crystal display apparatuses are vertically aligned to form a multi-image display system, then the display area is increased, but image displacements occur between the apparatuses
Solution Approach 1:
The patent applies preliminary action by adjusting the write start timing of image signals before display occurs. Specifically, the lower liquid crystal display apparatus starts writing the image signal earlier than the upper apparatus by a predetermined time period, so that both apparatuses complete their write operations simultaneously. This pre-adjustment of timing prevents image displacement from occurring in the first place.
Solution Approach 2:
The patent changes the timing parameter of the write operation for the lower liquid crystal display apparatus. By extending the write period of the lower apparatus relative to the upper apparatus, the system compensates for the vertical alignment issue. This parameter adjustment ensures that images are written and displayed at synchronized moments across all vertically aligned apparatuses.
2Stability of the object's composition
If the write operation timing is synchronized across vertically aligned display apparatuses, then image continuity is maintained, but image displacements occur due to hold-type device characteristics
Solution Approach 1:
The patent applies preliminary action by adjusting the write start timing of image signals before display occurs. Specifically, the lower liquid crystal display apparatus starts writing the image signal earlier than the upper apparatus by a predetermined time period, so that both apparatuses complete their write operations simultaneously. This pre-adjustment of timing prevents image displacement from occurring in the first place.
Solution Approach 2:
The patent changes the timing parameter of the write operation for the lower liquid crystal display apparatus. By extending the write period of the lower apparatus relative to the upper apparatus, the system compensates for the vertical alignment issue. This parameter adjustment ensures that images are written and displayed at synchronized moments across all vertically aligned apparatuses.
3Ease of operation
If the same video signal is input to multiple liquid crystal display apparatuses simultaneously, then the system operation is simplified, but image displacements occur between upper and lower apparatuses
Solution Approach 1:
The patent applies local quality by treating the lower liquid crystal display apparatus differently from the upper apparatus in terms of write timing. While both apparatuses receive the same video signal, the lower apparatus is assigned an extended write period and earlier start timing, creating a localized adjustment that compensates for its vertical position and prevents image displacement.
Data Source
AI summary
Each of liquid crystal display apparatuses (10), forming a multi-image display system, includes an image signal processing part (2) which determines a write speed of an image signal based on the number of liquid crystal display apparatuses (10) being aligned in a vertical direction with respect to the lines of an image display device (3) in the multi-image display system. Additionally, the image signal processing part (2) shifts write start timing of the image signal display device (3) based on the location of the corresponding apparatus within the liquid crystal display apparatuses (10) being aligned in the vertical direction with respect to the lines, thus displaying a display image of the corresponding apparatus in the image display device (3) at the determined write speed.