Display System Board P2P Interface Type Identification
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Solution Overview
Problem
Existing display devices with TCONLESS TV products face limitations due to the lack of versatility in system boards, which are not adaptable to various P2P protocols, leading to poor compatibility and increased design complexity.
Innovation Solution
The system board identifies the corresponding P2P interface type through a type identification signal, allowing for universal design and improved applicability without increasing the total number of connector pins, enabling the use of multiple P2P interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system board is designed for a specific P2P protocol, then the signal transmission performance is optimized, but the adaptability to different P2P protocols deteriorates
Solution Approach 1:
The system board is designed with universal P2P interface capabilities that can work with multiple P2P protocols (iSP, USI-T, CHPI, CSPI, CMPI, CEDS) through a standardized connector design. The board includes protocol identification functionality that automatically detects which protocol is being used and configures accordingly, allowing one system board design to serve multiple protocol requirements without sacrificing transmission performance for any specific protocol
2Reliability
If different system board designs are created for different P2P protocols, then the optimization for each protocol is achieved, but the device complexity increases
Solution Approach 1:
Multiple protocol support capabilities are merged into a single system board design. The board integrates protocol identification circuitry, multiple protocol transmission interfaces, and automatic configuration logic within one unified hardware platform, eliminating the need for separate optimized designs for each P2P protocol while maintaining the transmission performance benefits of protocol-specific optimization
3Adaptability or versatility
If the connector pin number is increased to support protocol identification, then the adaptability to multiple P2P protocols is improved, but the connector complexity increases
Solution Approach 1:
Protocol identification is achieved through intermediary signaling mechanisms that utilize existing connector pins for dual purposes. The system employs voltage level detection, signal timing analysis, or dedicated identification pins that multiplex with data transmission pins, allowing protocol detection without adding significant pin count while maintaining multi-protocol adaptability
Data Source
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AI summary
A display device provided in the disclosure includes: a display panel including a gate driving circuit and a source driving circuit, a XB board including a driving circuit board assembly, and a system board including a system-on-chip and a second connector connected with the system-on-chip; the driving circuit board assembly includes a display control circuit and a first connector, the display control circuit is connected with the gate driving circuit, the source driving circuit and the first connector; the first connector includes voltage supplying pins, P2P interface pins and SPI pins; the second connector connects the first connector through a connecting member; the system-on-chip is configured for acquiring a type identification signal transmitted by the connecting member and identifying a P2P interface type according to the type identification signal; and transmitting corresponding P2P data to the connecting member according to the P2P interface type.