Display Backlight Light-Blocking Structure for Full-Screen Camera Integration
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Solution Overview
Problem
Existing display devices face challenges in maximizing screen ratio due to light leakage from the backlight module affecting the camera component, necessitating the use of light shielding adhesives and metal frames that create black borders, preventing full-screen display.
Innovation Solution
A display device with a first backlight module featuring an opening surrounded by light blocking structures and light emitting units that emit light at different times, along with a second backlight module and light shielding structures to prevent light leakage and enhance screen ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If light shielding adhesive, metal frame, and sealant are used to prevent light leakage, then light leakage is reduced, but black borders are created and full-screen display is prevented
Solution Approach 1:
The patent extracts and removes the light shielding adhesive, metal frame, and sealant from the display device structure. By eliminating these components that caused black borders, the invention achieves full-screen display while using alternative solutions (light blocking structure and second backlight module) to control light leakage without compromising display area.
Solution Approach 2:
The patent introduces a light blocking structure and second backlight module as intermediary components. These new elements serve as mediators to control light leakage from the first backlight module without requiring traditional light shielding materials that created black borders, thus enabling full-screen display while preventing light leakage to the camera component.
2Area of stationary object
If camera component is disposed below the display screen to maximize screen ratio, then screen ratio is improved, but light leakage from backlight module affects shooting performance
Solution Approach 1:
The patent segments the backlight system into a first backlight module (behind display screen) and a second backlight module (behind camera component). This segmentation allows independent control of light emission from each module, enabling the first module to provide display lighting while the second module prevents light leakage to the camera, thus maintaining high screen ratio without compromising camera performance.
Solution Approach 2:
The light blocking structure acts as an intermediary between the first backlight module and the camera component. It selectively blocks light from the first backlight module from reaching the camera while allowing the display screen to function normally, thus preventing light leakage interference with the camera's shooting performance while maintaining the high screen ratio configuration.
3Area of stationary object
If display panel corresponds to the opening to maximize screen ratio, then screen ratio is improved, but the opening area cannot be used for display function
Solution Approach 1:
The patent makes the opening area serve multiple functions: it acts as a light blocking structure to prevent light leakage to the camera, and simultaneously allows the display panel to extend into this area for display purposes. The second backlight module provides lighting for the camera component while the first backlight module illuminates the display panel, enabling the opening area to fulfill both light control and display functions.
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
The solution effectively blocks lateral light leakage, allowing for full-screen display and improved photographing performance by minimizing black borders and ensuring optimal light utilization.
Implementation Method 1
at least one light blocking structure is disposed on the substrate and is disposed around the opening
Implementation Method 2
a plurality of light emitting units, and the plurality of light emitting units are disposed on a side of the at least one light blocking structure away from the opening
Data Source
AI summary
A display device is disposed. The display device includes a first backlight module and a display panel, and the display panel is disposed on the backlight module. The first backlight module has an opening, and the opening passes through the first backlight module. The first backlight module includes a substrate, a plurality of light emitting units, and at least one light blocking structure. The light blocking structure is disposed on the substrate and surrounds the opening. The light emitting units are disposed on the substrate, and the light emitting units are disposed on a side of the light blocking structure away from the opening.