Rear-View Mirror Display Module with Integrated Light Sensing
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Solution Overview
Problem
Existing rear-view mirror systems face challenges in managing excessive light during night driving, as they require additional space for illumination sensors and light transmission holes, which can compromise the area for display devices and increase the mirror's thickness.
Innovation Solution
A rear-view mirror module with a transmittance control structure and a mirror-type display panel that includes a substrate, display member, and a reflective member, featuring a variable transmittance control structure and a light transmission region to control external light reflectance and transmission, allowing for adjustable luminance and transmittance based on external light intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a hole is formed in the rear-view mirror for the illumination sensor to sense external light, then the electrochromic mirror can prevent glare, but the area of the rear-view mirror increases or the area of the display device decreases
Solution Approach 1:
The patent combines the illumination sensor and display device into a single integrated structure. The illumination sensor is disposed within the display device, eliminating the need for a separate hole in the rear-view mirror. This merging of components allows glare prevention functionality to be maintained while preserving the display device area, as the sensor shares the same space rather than requiring additional space outside the display area.
2Ease of operation
If a hole is formed in the rear-view mirror for the illumination sensor, then external light can be sensed, but the overall thickness of the rear-view mirror module increases
Solution Approach 1:
The illumination sensor is nested within the display device structure, which itself is integrated into the rear-view mirror module. This nested arrangement allows the sensor to access external light through the display device's light transmission regions without requiring additional thickness in the mirror assembly. The sensor is positioned within the existing structural layers, utilizing the space efficiently rather than adding to the overall thickness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables effective control of external light reflectance and transmission, reducing glare during night driving while maintaining a compact design by integrating the light transmission region within the display device, thus enhancing visibility and reducing the overall thickness of the rear-view mirror module.
Implementation Method 1
a transmittance control structure having a variable transmittance
Implementation Method 2
a reflective member facing the substrate with respect to the display member, the reflective member including an opening region corresponding to the light emission region, a second transmission region corresponding to the first transmission region, and a reflective region surrounding the opening region and the second transmission region
Data Source
AI summary
A display device may comprise a transmittance control structure having a variable transmittance and a mirror type display panel disposed on a rear surface of the transmittance control structure. The mirror type display panel may comprise a substrate, a display member disposed on the substrate, the display member including a light emission region, a first transmission region, and a peripheral region surrounding the light emission region and the first transmission region, and a reflective member facing the substrate with respect to the display member, the reflective member including an opening region corresponding to the light emission region, a second transmission region corresponding to the first transmission region, and a reflective region surrounding the opening region and the second transmission region.