Projector Resolution Information Generation for Tiling and Stack Modes

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Solution Overview

Problem

Existing projector systems can only generate Extended Display Identification Data (EDID) for tiling images, failing to provide image information corresponding to the resolution of stack images, limiting their ability to display combined projection images effectively.

Innovation Solution

A projector system that includes a projecting section, a generating section, and a notifying section to generate and communicate resolution information for both tiling and stack modes, allowing the image supply device to produce image information suitable for each mode by determining the resolution differences between projectors in a cascade connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the projector system generates EDID only for tiling images, then the system structure remains simple, but the adaptability to different projection modes (stack image) is insufficient

Engineering Contradiction:
Improveadaptability to different projection modesVSAvoidsystem structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The projector is designed to generate multiple types of EDID data (tiling image EDID and stack image EDID) using the same hardware components. The generating section can switch between different EDID generation modes based on the projection mode, allowing a single device to serve multiple functions without adding complex external equipment.

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

Solution Approach 2:

The projector dynamically adjusts its EDID generation capability based on the operating mode. When operating in tiling mode, it generates tiling EDID; when operating in stack mode, it generates stack image EDID. This dynamic adaptation allows the system to maintain simplicity while achieving versatility through software-controlled functionality switching.

Inventive Principle:
Principle #15Dynamics

2Productivity

If the projector system supports only tiling image resolution, then the generating section remains simple, but the productivity for displaying stack images is limited

Engineering Contradiction:
Improvedisplay capability for stack imagesVSAvoidgenerating section complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The projector pre-calculates and generates appropriate EDID data based on the selected projection mode before actual image display. For stack images, the generating section pre-determines the resolution information needed, allowing the image supply device to prepare corresponding image data in advance, thus improving overall display productivity without requiring complex real-time processing during operation.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If the projector uses standard EDID generation for tiling images, then ease of manufacture is maintained, but the measurement precision for stack image resolution is insufficient

Engineering Contradiction:
Improveresolution information accuracy for stack imagesVSAvoidmanufacturing complexity
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The generating section changes the resolution parameters in the EDID data based on the projection mode. For stack images, it generates resolution information that accurately reflects the superimposed image characteristics, while for tiling images, it generates resolution information matching the extended display dimensions. This parameter adaptation allows precise measurement for different modes without requiring different hardware designs.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11016379B2Projector and control method of projector for notifying image supply device of resolution information
Publication Date: 2021.05.25 SEIKO EPSON CORP
  • US11016379B2 patent drawing
  • US11016379B2 patent drawing
  • US11016379B2 patent drawing

AI summary

A projector includes: a projecting section projecting a second image based on image information onto a projection surface onto which a first image is projected by another projector; a generating section generating resolution information indicating a resolution different between a first mode in which the first image and the second image are portions of an image indicated by the image information and the second image is connected with the first image and a second mode in which the first image and the second image are the image indicated by the image information and the second image is superimposed on the first image; and a notifying section notifying an image supply device supplying the image information of the resolution information generated by the generating section.