Head-Up Display Blinding Error Detection Circuit
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Solution Overview
Problem
Existing head-up display systems face challenges in accurately detecting blinding errors due to dimming control and color correction, as current methods only analyze display image data without considering the impact of dimming control, leading to incomplete error detection.
Innovation Solution
A circuit device integrated with a dimming control circuit, color correction circuit, and blinding error detection circuit that performs dimming control, color correction, and error detection in conjunction, using reverse color correction and distortion correction to ensure accurate error detection by reflecting the dimming control results in the analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If color correction is performed on display image data according to dimming control, then the displayed color tone is maintained, but blinding error detection accuracy deteriorates when based only on corrected image data
Solution Approach 1:
The patent applies preliminary action by performing blinding error detection on the original image data before color correction is applied. The detection circuit receives both the original image data and dimming control information, and performs error detection based on these inputs prior to the color correction process. This ensures that error detection is not affected by subsequent color corrections while still maintaining accurate color tone display.
2Use of energy by moving object
If dimming control is applied to the light source, then power consumption is reduced and visibility is improved, but accurate blinding error detection becomes difficult without considering dimming information
Solution Approach 1:
The patent implements feedback by incorporating dimming control information into the blinding error detection process. The detection circuit receives feedback about the dimming control state and uses this information to accurately determine whether a blinding error has occurred. This feedback mechanism allows the system to maintain detection accuracy while operating under various dimming conditions, enabling both power savings and reliable error detection.
3Device complexity
If blinding error detection is performed only on display image data without dimming control information, then the detection process is simple, but error detection accuracy is insufficient
Solution Approach 1:
The patent achieves multi-functionality by designing a detection circuit that can process multiple types of input data (original image data and dimming control information) simultaneously. The same detection circuit performs both the error detection function and the integration of dimming control information, eliminating the need for separate processing paths. This approach maintains detection process simplicity while significantly improving error detection accuracy through comprehensive input analysis.
Data Source
AI summary
Provided is a circuit device used in a display device of a head-up display that performs image projection using display image data and a light source. The circuit device includes: a dimming control circuit configured to perform dimming control of the light source based on image data; a color correction circuit configured to perform color correction on the image data in accordance with a result of the dimming control to output the display image data; and a blinding error detection circuit configured to perform a blinding error detection process of the head-up display in accordance with the display image data and the result of the dimming control.