Movable Color Sensor for Display Device Ambient Light Interference

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Solution Overview

Problem

Most display devices lack a built-in color correction function, requiring external modules that incur additional costs and installation challenges, with incorrect positioning leading to interference from ambient light and inaccurate color correction.

Innovation Solution

A display device with a correcting sensor that can be integrated with the display panel and moved via a shaft and driving module to optimize its position for accurate color correction, allowing it to get closer to the display surface while avoiding ambient light interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a color correction module is installed externally, then color correction function is achieved, but additional cost and installation inconvenience occur

Engineering Contradiction:
Improvecolor correction functionVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The color correction sensor is integrated directly into the display device housing, merging the color correction function with the display device itself. This eliminates the need for separate external modules and their associated installation complexity, while maintaining the color correction capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The display device performs color correction autonomously using its built-in sensor and processing unit, without requiring external correction modules. The device self-adjusts its color output based on sensor feedback, eliminating the need for external intervention or additional hardware installation.

Inventive Principle:
Principle #25Self-service

2Object-affected harmful factors

If the correcting sensor is positioned away from the display surface, then ambient light interference is reduced, but color correction accuracy deteriorates

Engineering Contradiction:
Improveambient light interferenceVSAvoidcolor correction accuracy
Core Design Contradiction:
Object-affected harmful factorsVSMeasurement precision

Solution Approach 1:

The correcting sensor is designed to be movable rather than fixed, allowing it to dynamically adjust its position. The sensor can move closer to the display surface during color correction operations to improve accuracy, and move away when not in use to reduce ambient light interference, thus resolving the contradiction between proximity and interference.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sensor position is pre-adjusted to an optimal location that balances proximity to the display surface and protection from ambient light. This preliminary positioning ensures that the sensor is close enough for accurate color correction while being sufficiently protected from harmful ambient light interference.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If the correcting sensor is moved closer to the display surface, then color correction accuracy is improved, but ambient light interference increases

Engineering Contradiction:
Improvecolor correction accuracyVSAvoidambient light interference
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The correcting sensor is designed to be movable rather than fixed, allowing it to dynamically adjust its position. The sensor can move closer to the display surface during color correction operations to improve accuracy, and move away when not in use to reduce ambient light interference, thus resolving the contradiction between proximity and interference.

Inventive Principle:
Principle #15Dynamics

4Reliability

If a plug-in color correction module is used, then color constancy is achieved, but additional cost is incurred

Engineering Contradiction:
Improvecolor constancyVSAvoidadditional cost
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The color correction sensor is integrated directly into the display device housing, merging the color correction function with the display device itself. This eliminates the need for separate external modules and their associated installation complexity, while maintaining the color correction capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The display device performs color correction autonomously using its built-in sensor and processing unit, without requiring external correction modules. The device self-adjusts its color output based on sensor feedback, eliminating the need for external intervention or additional hardware installation.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11602057B2Display device and color correcting method thereof
Publication Date: 2023.03.07 QISDA CORP
  • US11602057B2 patent drawing
  • US11602057B2 patent drawing
  • US11602057B2 patent drawing

AI summary

A display device including a display panel, a shaft, a correcting sensor and a driving module is provided. The display panel has a display surface. The shaft has an axial end and a correcting end opposite the axial end. The correcting sensor is disposed on the correcting end. When the shaft is rotated relative to the axial end, the correcting sensor is moved to a second position from a first position and faces the display surface at the second position. The driving module is configured to translate the shaft when the correcting sensor is at the second position, such that the correcting sensor can be moved to a detecting position from the second position, wherein the distance of the second position relative to the display surface is greater than the distance of the detecting position relative to the display surface.