Screen Flash Lamp Color Temperature Correction
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Solution Overview
Problem
Display technologies face challenges in photographing quality due to color shift issues when screens are used as flash lamps, as they emit light that is not a full-band spectrum, leading to inaccurate color representation of objects.
Innovation Solution
Implementing a color temperature correction scheme that adjusts the screen's color temperature from an original to a target temperature when in photographing mode, using a first color temperature correction scheme to minimize color shift and ensure accurate color representation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the screen is used as a flash lamp to emit light in photographing mode, then the flash lamp function is enabled to compensate insufficient brightness, but color shift occurs leading to inaccurate color representation of objects
Solution Approach 1:
The patent applies parameter changes by adjusting the color temperature of the screen through software control when used as a flash lamp. The system modifies display parameters to transform the screen's emission characteristics, converting it from a standard display device into a light source with properties similar to traditional flash lamps, thereby achieving accurate color representation while maintaining the ability to compensate for insufficient brightness.
Solution Approach 2:
The patent implements preliminary action by pre-calculating and storing color temperature correction data for different display content scenarios. Before the actual photographing occurs, the system determines the appropriate color temperature adjustment based on the current screen content, ensuring that when the screen functions as a flash lamp, the color accuracy is already optimized for the specific situation.
2Measurement precision
If color temperature correction is applied to adjust the screen's color temperature, then color accuracy is improved, but the complexity of the control system increases
Solution Approach 1:
The patent reduces control complexity through preliminary action by pre-calculating color temperature correction data for various display scenarios and storing it in advance. During actual operation, the system simply retrieves and applies the pre-determined correction parameters based on the current screen content type, avoiding complex real-time calculations and simplifying the control architecture.
Solution Approach 2:
The system implements self-service by automatically determining the appropriate color temperature correction based on the detected display content without requiring manual intervention. The processor autonomously analyzes the screen content characteristics and applies the corresponding correction scheme, making the system self-adjusting and reducing the need for complex external control mechanisms.
Data Source
AI summary
A method for controlling a screen of a terminal device to emit light includes: determining whether a screen flash lamp function is in an active state when the terminal device is in a photographing mode, wherein the screen flash lamp function enables the screen to serve as a flash lamp; and controlling the screen to emit light as a flash lamp according to a first color temperature correction scheme if the screen flash lamp function is in the active state, wherein the first color temperature correction scheme is configured to adjust a color temperature of the screen from an original color temperature to a target color temperature, and wherein the original color temperature is a color temperature when the screen emits light without color shift correction.