Display Pixel Switching for Direct Analog Image Transmission

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Solution Overview

Problem

Existing display devices in mixed reality systems suffer from transmission delays between image capture and display, with a typical delay of at least two frames due to image processing and protocol conversion.

Innovation Solution

A display apparatus with switch circuits and a data bus system that allows direct coupling of analog image signals to pixels, eliminating the need for analog-digital conversion and enabling real-time display through controlled pixel charging and efficient signal processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If analog-digital conversion and protocol conversion are performed in existing display devices, then image processing can be completed, but transmission delay increases by at least two frames

Engineering Contradiction:
Improveimage processing completenessVSAvoidtransmission delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent extracts and removes the analog-digital conversion module from the signal processing chain. By directly transmitting analog image signals from the camera module through the driver circuit to the display panel without conversion, the system eliminates the time-consuming conversion process while maintaining complete image processing functionality through alternative analog processing paths.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an analog signal processing intermediary that bridges the camera module and display panel without requiring digital conversion. This intermediary uses analog signal modulation and direct voltage control to transmit image data, serving as a mediator that preserves real-time transmission while completing necessary signal adaptation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If multiple conversion processes are implemented in the display system, then signal processing capability is enhanced, but system complexity increases

Engineering Contradiction:
Improvesignal processing capabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent removes the analog-digital conversion module and associated digital processing circuits from the system. This extraction simplifies the overall architecture by eliminating redundant conversion stages while maintaining signal processing capability through direct analog signal routing and voltage-level control at the driver circuit.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the functions of multiple separate modules into integrated circuits. The driver circuit integrates signal amplification, voltage control, and pixel driving functions into a single unified module, reducing the number of discrete components and interconnections while preserving comprehensive signal processing capability.

Inventive Principle:
Principle #5Merging (Combining)

3Loss of time

If real-time display is achieved by eliminating conversion processes, then transmission delay is reduced, but signal transmission precision may be compromised

Engineering Contradiction:
Improvetransmission delayVSAvoidsignal transmission precision
Core Design Contradiction:
Loss of timeVSMeasurement precision

Solution Approach 1:

The patent changes the voltage parameters and signal levels throughout the transmission chain to optimize analog signal integrity. By carefully controlling voltage ranges, impedance matching, and signal conditioning in the driver circuit, the system maintains high transmission precision while eliminating conversion delays that would otherwise be required to ensure signal accuracy.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12444339B2Display apparatus, image signal processing apparatus, collection apparatus and display system
Publication Date: 2025.10.14 BEIJING BOE TECH DEV CO LTD
  • US12444339B2 patent drawing
  • US12444339B2 patent drawing
  • US12444339B2 patent drawing

AI summary

Provided in the present disclosure are a display apparatus, an image signal processing apparatus, a collection apparatus and a display system. The display apparatus includes: a plurality of pixels, which are arranged in an array; a plurality of scan lines, which are respectively coupled to the plurality of pixels and extend in a row direction; a plurality of data lines, which are respectively coupled to the plurality of pixels and extend in the row direction; a plurality of control lines, which are respectively coupled to the plurality of pixels and extend in a column direction; a data bus, which is coupled to the data lines; a plurality of first switch circuits, which correspond to one data line; and a plurality of second switch circuits, which correspond to the pixels.