USB 4.0 Signal Conversion Circuit for Display Device Cable Management

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Solution Overview

Problem

The complex and labor-intensive process of managing numerous signal cables in display devices during manufacturing hinders automated assembly manufacturing, as existing technologies require extensive cable arrangement and fixation for signal transmission.

Innovation Solution

An electronic system with a host device and display device that utilize universal serial bus (USB) signal conversion and transmission circuits, conforming to USB 4.0 or above standards, to simplify cable management by converting and transmitting signals wirelessly or through a single standard interface, reducing the need for multiple cables.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple signal cables are arranged and fixed on the cable bracket for signal transmission, then signal transmission capability is improved, but cable management complexity increases and automated assembly becomes difficult

Engineering Contradiction:
Improvesignal transmission capabilityVSAvoidcable management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple separate signal cables (eDP cable with 40-50 pins, camera cable with 20+ pins, etc.) into a single integrated cable assembly. This cable assembly includes all necessary signal transmission functions, eliminating the need for multiple individual cables and their associated brackets and fixation structures.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated cable assembly serves multiple functions simultaneously: it transmits display signals (eDP), camera signals, microphone signals, and sensor signals through a single unified structure. This multi-functional design replaces what previously required multiple specialized cables.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple signal cables are arranged and fixed during manufacturing, then complete signal transmission is achieved, but manufacturing time increases and labor intensity increases

Engineering Contradiction:
Improvesignal transmission completenessVSAvoidmanufacturing efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

All signal cables are pre-assembled and integrated into a complete cable assembly before installation. The cable assembly is prepared in advance with all connections and routing predetermined, so that during final installation, the entire assembly is installed as a single unit rather than assembling multiple separate cables during manufacturing.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If numerous signal cables are used for connecting display panel and camera module, then all signal types can be transmitted, but cable arrangement difficulty increases

Engineering Contradiction:
Improvesignal type coverageVSAvoidcable arrangement ease
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent merges multiple cable types (display cable, camera cable, audio cable, sensor cable) into a single integrated cable assembly that contains all necessary conductors and connections, eliminating the need to separately arrange and manage multiple different cable types.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11656828B2Electronic system and display device
Publication Date: 2023.05.23 INVENTEC PUDONG TECH CORPOARTION
  • US11656828B2 patent drawing
  • US11656828B2 patent drawing
  • US11656828B2 patent drawing

AI summary

An electronic system is provided, which includes a host device and a display device. The host device includes a first signal conversion circuit and a first signal transmission circuit. The first signal conversion circuit is utilized for converting signals associated with the host device into a first universal serial bus signal. The display device includes a display panel, a second signal conversion circuit and a second signal transmission circuit. The second signal transmission circuit is utilized for receiving the first universal serial bus signal. The second signal conversion circuit is coupled to the second signal transmission circuit for converting the first universal serial bus signal into the signals associated with the host device. The first universal serial bus signal conforms to universal serial bus 4.0 or above version standard specification.