Integrated Display Touch Driving Board with Combined Connector
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Solution Overview
Problem
The integration of display panel driving boards and touch screen panel driving boards into a single unit is challenging due to separate fabrication and the need for multiple cables, such as LVDS and USB, which increases device size and manufacturing costs.
Innovation Solution
A display device with a touch screen panel integrates display panel driving circuits and touch screen panel driving circuits on a single rear surface, using a connector that combines LVDS and USB functions into a single integration cable, eliminating the need for separate cables and pins, and includes a compensating circuit to stabilize the common electrode voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If display panel driving board and touch screen panel driving board are fabricated separately, then each board can be optimized for its specific function, but the device size increases and manufacturing complexity increases
Solution Approach 1:
The patent combines the display panel driving board and touch screen panel driving board into a single integrated driving board. The display panel driving circuits and touch screen panel driving circuits are fabricated on the same substrate, eliminating the need for separate boards and reducing overall device complexity while maintaining functional optimization through dedicated circuit regions.
Solution Approach 2:
The integrated driving board performs multiple functions simultaneously - it drives both the display panel and touch screen panel through separate circuit regions. This multi-functional design reduces the number of separate components needed while maintaining the specialized functionality of each panel type.
2Reliability
If separate LVDS cable and USB cable are used for communication, then each cable can be optimized for its specific protocol, but the device size increases and manufacturing cost increases
Solution Approach 1:
The patent merges the LVDS cable and USB cable into a single integrated cable that carries both display panel data and touch screen panel signals. This is achieved by combining the signal transmission functions into one physical cable, reducing the number of cables needed while maintaining optimized signal transmission for each protocol through separate conductor groups.
3Ease of manufacture
If display panel driving board and touch screen panel driving board are separated, then each board can be independently manufactured, but the overall device size increases
Solution Approach 1:
The patent merges both driving boards into a single integrated board structure. The display panel driving circuits and touch screen panel driving circuits are fabricated on the same substrate, significantly reducing the overall device footprint while maintaining the ability to independently design and manufacture each circuit type through standardized fabrication processes.
Data Source
AI summary
A display device having a display panel and a touch screen panel is disclosed. The display device includes a display panel driving unit formed on a portion of the rear of the display panel and including a plurality of display panel driving circuits to drive the display panel; a touch screen panel driving unit formed on other portion of the rear of the display panel to be adjacent to the display panel driving unit and including a plurality of touch screen panel driving circuits to drive the touch screen panel; and a connector formed on the display panel driving unit and including a first connector unit connected to at least one of the display panel driving circuits and a second connector unit connected to at least one of the touch screen panel driving circuits.