Display Apparatus USB Video Decoding Board Layout
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Solution Overview
Problem
The limited number of DVI and D-SUB ports on computers restricts the number of display devices that can be connected, necessitating additional hardware and increasing costs due to the complexity of cables with multiple lines.
Innovation Solution
A display apparatus with a universal serial bus (USB) port that decodes and processes video signals, allowing multiple display devices to be connected without additional hardware, using a board layout with adjacently disposed decoder, signal converting, and signal processing units to convert TMDS or RGB signals into LVDS format, and a power supply circuit board for efficient power distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If DVI ports or D-SUB ports are used to connect display apparatuses to computers, then video transmission is achieved, but the number of connectable display devices is limited and additional hardware is required
Solution Approach 1:
The patent applies universality by enabling the display apparatus to receive video signals through multiple port types (DVI, D-SUB, and USB). The USB port, traditionally used for data communication, is adapted to also carry video signals, allowing a single display apparatus to function with multiple connection types without requiring additional display devices or hardware
2Reliability
If DVI cables or D-SUB cables are used to transmit video signals, then video transmission is achieved, but cable cost increases due to multiple lines
Solution Approach 1:
The patent utilizes USB cables, which are already widely available and inexpensive for data communication purposes, to transmit video signals. By repurposing the existing USB cable infrastructure rather than requiring specialized DVI or D-SUB cables, the solution reduces cable costs and simplifies the connection infrastructure
Data Source
AI summary
A display apparatus displaying video input through various ports is provided. The display apparatus includes a board which is disposed behind a display module, wherein the board includes a universal serial bus (USB) port which receives a USB standard signal, a decoder which decodes a video signal from the USB standard signal and outputs a decoded signal, a video output unit which outputs a displayable video signal to the display module corresponding to the video signal, wherein the USB port is disposed at an edge of a first side of the board, and the video output unit is disposed at an edge of a second side which is different from the first side of the board. The video output unit receives video from an external apparatus such as a computer through a USB port in addition to a DVI port and D-SUB port, and displays the received video. Display apparatuses having additional ports than the DVI ports and D-SUB ports may be connected to a computer without requiring additional hardware.