Tiled Display PCB Standardization for Low Signal Deviation
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Solution Overview
Problem
Existing tiling display devices face challenges in reducing signal deviation and improving manufacturing efficiency and yield due to the use of multiple printed circuit boards with varying shapes and configurations.
Innovation Solution
A tiling display device design where multiple printed circuit boards are cascaded and share a common shape, connected via second connection lines, and equipped with a compensation printed circuit to reduce noise and facilitate efficient manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple printed circuit boards with varying shapes and configurations are used in existing tiling display devices, then the display area can be expanded, but the manufacturing efficiency and assembly yield deteriorate due to the complexity of handling different board types
Solution Approach 1:
The patent applies homogeneity by making all printed circuit boards in the tiling display device have the same shape and configuration. This standardization allows for uniform manufacturing processes and assembly procedures, significantly improving manufacturing efficiency and assembly yield while still enabling expanded display area through the cascaded arrangement of identical boards
2Area of stationary object
If multiple printed circuit boards with varying shapes and configurations are used in existing tiling display devices, then the display area can be expanded, but the signal deviation increases due to inconsistencies in board characteristics
Solution Approach 1:
The patent applies homogeneity by making all printed circuit boards in the tiling display device have the same shape and configuration. This standardization ensures consistent electrical characteristics and signal transmission across all boards, significantly reducing signal deviation while still enabling expanded display area through the cascaded arrangement of identical boards
3Adaptability or versatility
If multiple different types of printed circuit boards are used, then the display can be configured for various applications, but the device complexity increases making manufacturing and assembly more difficult
Solution Approach 1:
The patent applies segmentation by dividing the display device into multiple identical modular units, each containing a display panel and a standardized printed circuit board. This modular approach allows for versatile display configurations by arranging identical modules in different patterns, while avoiding the complexity of designing and manufacturing multiple different board types
Solution Approach 2:
The patent applies universality by designing a single type of printed circuit board that can be used in all display modules. This universal board design enables the same component to serve multiple positions and functions throughout the tiling display, simplifying manufacturing while maintaining configuration flexibility through modular arrangement
Data Source
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AI summary
According to an aspect of the present disclosure, a tiling display device comprises a plurality of display devices, and a main circuit board driving the plurality of display devices. Each of the plurality of display devices includes a display panel that displays an image, a plurality of flexible films bonded to a rear surface of the display panel, and a printed circuit board electrically connected to the plurality of flexible films. A plurality of printed circuit boards of the plurality of display devices are cascaded to each other and the plurality of printed circuit boards have a same shape. Therefore, the efficiency of a manufacturing process of the plurality of printed circuit boards provided in a tiling display device can be improved.