Display Device Signal Routing to Minimize Dead Space
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Solution Overview
Problem
Display devices face challenges in minimizing dead space and satisfying design requirements due to the need for an efficient electrical connection structure between the signal controller and the gate driver, which often results in increased dead space and manufacturing costs.
Innovation Solution
A display device configuration that includes multiple printed circuit boards (PCBs) and flexible printed circuit boards (FPCBs) connected through specific connecting members, allowing for the transmission of control signals and power source voltages to minimize dead space and optimize the placement of components, such as the signal controller and gate driver, without the need for additional frame buffers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the signal controller and gate driver are connected using traditional PCB structures, then the electrical connection is established, but the dead space of the display device increases
Solution Approach 1:
The connection structure is divided into multiple segments: a first connection structure for connecting the signal controller to the gate driver, and a second connection structure for connecting the gate driver to the display panel. This segmentation allows each connection to be optimized independently, reducing the overall dead space while maintaining reliable electrical connections.
Solution Approach 2:
The connection structures extend in multiple dimensions rather than occupying a single large peripheral area. The first connection structure connects the signal controller to the gate driver through a optimized path, and the second connection structure connects the gate driver to the display panel, distributing the connection space across different dimensions and reducing concentrated dead space.
2Adaptability or versatility
If the signal controller is mounted on the PCB and the gate driver is not mounted on the PCB, then the design flexibility is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent introduces a gate driver as an intermediary component that receives control signals from the signal controller via the first connection structure and generates gate signals for the display panel through the second connection structure. This intermediary approach allows the signal controller to be mounted on the PCB while the gate driver can be positioned optimally, balancing design flexibility with manufacturing simplicity.
3Area of stationary object
If the dead space is minimized, then the display area is maximized, but the connection structure becomes more complex
Solution Approach 1:
The connection structures are designed with local optimization: the first connection structure is specifically configured to connect the signal controller to the gate driver with minimal space, and the second connection structure is optimized to connect the gate driver to the display panel. Each local connection is simplified while the overall arrangement minimizes dead space, avoiding unnecessary complexity.
Data Source
AI summary
A display device includes a display panel including a plurality of pixels, a second driving circuit that applies a gate signal to the plurality of pixels, and a first connecting member connected to the display panel on a first edge of the display panel. The first connecting member includes a control signal wiring connected to the second driving circuit. The display device further includes a flexible printed circuit board (FPCB) connected to the display panel on a second edge of the display panel. The second edge faces the first edge, and the FPCB includes a first driving circuit that applies a data voltage to the plurality of pixels.