Backlight Unit Light-Blocking Tape Suppresses Camera Leakage
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Solution Overview
Problem
The integration of a camera module within a display device is compromised by light leakage from the backlight unit, which degrades the camera's performance in electronic equipment.
Innovation Solution
A display device design featuring a backlight unit with an opening covered by a bezel and a light-blocking tape configuration, where the tape is adhered to both the bezel and the panel to prevent light leakage, ensuring the camera module operates effectively by blocking visible light in the frame region and allowing transparency in the designated transparent region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the camera module is provided inside an opening formed in the backlight unit, then the display device can integrate the camera module within the display area, but the characteristics of the camera are deteriorated due to the leakage of light emitted from the backlight unit toward the camera module side
Solution Approach 1:
A light-blocking tape is introduced as an intermediary element between the backlight unit and the camera module. The tape is adhered to the bezel at the opening and extends to block light paths, serving as a mediator that prevents harmful light from reaching the camera while maintaining the integrated design structure
Solution Approach 2:
The light-blocking tape is selectively applied only at specific locations where light leakage occurs (at the opening and along light paths to the camera module), rather than blocking light across the entire display area. This localized approach maintains display functionality while preventing harmful light from reaching the camera
2Reliability
If a light-blocking structure is added to prevent light leakage, then the camera performance is improved, but the device complexity increases
Solution Approach 1:
A thin flexible light-blocking tape is used instead of a rigid light-blocking structure. The tape can be easily adhered to the bezel and conform to the opening shape, providing effective light blocking with minimal structural complexity and without requiring additional complex mechanical components
Solution Approach 2:
The light-blocking tape serves as a simple intermediary element that can be easily integrated into the existing display structure. It is adhered to the bezel and provides the necessary light blocking function without requiring complex assembly procedures or additional structural support elements
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 configuration effectively suppresses light leakage to the camera module, enhancing image clarity and overall performance of the electronic equipment by ensuring the camera module receives unobstructed light from outside, thereby improving the accuracy and quality of images captured.
Implementation Method 1
a first tape having a light-blocking property... the first tape is adhered to the side portion of the bezel
Data Source
AI summary
A display device capable of suppressing light leakage is provided. The display device includes a panel, a transparent region provided in a display region of the panel, a frame region provided between the transparent region and the display region, a backlight unit, and a bezel. In the frame region, the panel, the backlight unit, and the bezel are adhered by a tape, and the bezel and the tape have a function of blocking visible light.