Display System Pin Voltage Detection for Multi-Standard Interface
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Solution Overview
Problem
Current audio/video and data transmission interface technologies, such as DVI, LVDS, and even HDMI, fail to meet market demands for high-speed transmission, and the high authorization fee for HDMI makes Display Port interface technology with its high compatibility and no patent fee overwhelming in the market.
Innovation Solution
A display system comprising a signal source unit, a transmission unit with multiple pins, and a display unit that includes a detection unit and a determination unit to detect voltage levels and configure the display device into corresponding modes, allowing it to operate with various standards like HDMI, DVI, MHL, and DP without the need for an adaptor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Display Port interface technology is used to achieve high compatibility and no patent fee, then cost and compatibility are improved, but the ability to communicate with other interfaces (HDMI, DVI) deteriorates
Solution Approach 1:
The display device is designed with dual-mode support (DP and DP++) that enables a single interface to communicate with multiple standards. The detection unit identifies whether the connected device uses DP or DP++ mode, and the control unit automatically configures the interface accordingly, allowing one physical interface to serve multiple functions and communicate with different interface standards without requiring separate adapters
2Adaptability or versatility
If an adaptor is used to enable communication between Display Port and other interfaces, then interface compatibility is improved, but device complexity and cost increase
Solution Approach 1:
The display device performs automatic detection and self-configuration when a display device is connected. The detection unit automatically identifies the interface standard (DP or DP++) by detecting voltage levels on specific pins, and the control unit automatically configures the interface mode without requiring user intervention or external adapters, making the system self-sufficient and eliminating the need for additional adaptation devices
3Ease of operation
If automatic detection and configuration is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent introduces a detection unit as an intermediary component that simplifies the automatic configuration process. This detection unit acts as a mediator between the physical connection and the control logic, automatically detecting the interface standard through voltage level measurement on specific pins and providing this information to the control unit, which then configures the appropriate mode without requiring complex user-side detection logic
Data Source
AI summary
The present disclose provides a display system. The display system comprises a signal source unit a signal source unit, a transmission unit and a display unit. The signal source unit is complied with a first standard and used for providing an image signal. The transmission unit is coupled to the signal source unit, and used for transmitting the image signal, wherein the transmission unit has a plurality of pins. The display unit is complied with a second standard and coupled to the transmission unit. The display unit comprises a detection unit and a determination unit. The detection unit is used for detecting the plurality of pins. The determination unit is couple to the detection unit and used for determining voltage levels of the pins, determining the first standard according to the voltage level of the pins and configuring the display device into a corresponding mode according to the first standard.