Display Data Transfer via Printer Driver for Flexible Screen Updates

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Solution Overview

Problem

Existing display systems require complex and inflexible connections between data processing and display devices, necessitating specialized cables and time-consuming software installations, and often demand continuous availability of the data processing unit.

Innovation Solution

Utilizing a printer driver to generate a print image stored in a display file within printer memory, which is transferred to a display device via an interface, allowing the display device to act as an active participant in data retrieval and display, decoupling data processing and display, and enabling flexible, efficient data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a direct connection between data processing device and display device is established using specialized cables and software, then data transmission reliability is improved, but device complexity and installation difficulty increase

Engineering Contradiction:
Improvedata transmission reliabilityVSAvoidconnection complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by making the data processing device perform multiple functions: it acts as both a document processing device and a display control device. The printer driver software enables the data processing device to generate display data and control the display device, eliminating the need for specialized display connection software and cables. This multi-functionality resolves the contradiction by maintaining reliable data transmission through the existing printer interface while reducing connection complexity.

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

2Adaptability or versatility

If dedicated display control software is installed on the data processing device, then display functionality is improved, but installation time and operational complexity increase

Engineering Contradiction:
Improvedisplay functionalityVSAvoidinstallation ease
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent makes the data processing device universal by enabling it to control display devices through the existing printer driver interface. Instead of installing dedicated display control software, the system uses the already-installed printer driver to generate display data and transmit it to the display device. This approach provides full display functionality while eliminating the need for additional software installation and configuration.

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

Solution Approach 2:

The system applies self-service by allowing the data processing device to automatically generate and transmit display data using its existing printer driver software. The device serves itself by repurposing the printer driver's document processing capabilities to control the display device, eliminating the need for separate display control software and reducing installation and operational complexity.

Inventive Principle:
Principle #25Self-service

3Reliability

If the data processing device remains continuously switched on, then display data availability is improved, but energy consumption increases

Engineering Contradiction:
Improvedisplay data availabilityVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies preliminary action by having the data processing device generate and store display data in advance using the printer driver, before the display device needs to display it. The display data is prepared and transmitted to the display device's memory or storage in advance, allowing the data processing device to be turned off without affecting display data availability. This resolves the contradiction by ensuring data availability through pre-preparation rather than continuous operation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4671955A1Method for displaying display data on a display device and display device
Publication Date: 2025.12.31 KWS COMPYST
  • EP4671955A1 patent drawingFigure 1
  • EP4671955A1 patent drawing
  • EP4671955A1 patent drawing

AI summary

Information is frequently displayed on screens because it saves paper and allows for quick and easy updates. Especially with distributed information, updates can be centralized, saving not only paper but also the time and energy required for on-site visits. To simplify the display of content on the designated display devices, the invention proposes connecting the display devices via an interface to a data processing device, which communicates with the display device via a printer driver. This allows a simple printout to display an image from any software with a print function on the screen.