Backlight Module Segmentation for Under-Screen Camera Displays
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Solution Overview
Problem
Conventional liquid crystal display devices with under-screen cameras placed below openings in backlight modules cannot display images effectively due to the absence of a light source within these openings, rendering the areas idle and non-functional.
Innovation Solution
A liquid crystal display device with a backlight module featuring a first light source component emitting red, green, and blue light to an area corresponding to the camera opening, and a second light source component providing light to the rest of the panel, allowing for normal color display and enhanced product quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If openings are set in backlight modules for under-screen cameras, then camera function is enabled, but display function is lost in those areas
Solution Approach 1:
The backlight module is divided into two independent light source components: a first light source component positioned at the camera opening area and a second light source component positioned at the display area. This segmentation allows each component to serve its specific function independently, enabling both camera and display operations simultaneously without interference.
Solution Approach 2:
The liquid crystal display panel is designed to perform multiple functions: the first opening serves both as a camera aperture and as a display area that can show images; the second opening serves as both a structural element and a light transmission path for the display. This multi-functionality resolves the contradiction by making the same structure serve multiple purposes.
2Device complexity
If no light source is provided in openings, then structure is simple, but display effect is eliminated
Solution Approach 1:
The backlight module is segmented into two spatially separated light source components with independent driving circuits. The first light source component is specifically positioned to illuminate the camera opening area, while the second light source component illuminates the display area. This segmentation enables display function to be restored in the camera area without complicating the overall structure.
Solution Approach 2:
Different regions of the backlight module are assigned different light source configurations according to their specific functional requirements. The camera opening area receives illumination from the first light source component, while the display area receives illumination from the second light source component. This local differentiation enables each region to optimize its display quality according to its specific function.
3Device complexity
If single light source is used, then device is simple, but uniform brightness cannot be achieved
Solution Approach 1:
The single light source is segmented into two separate light source components positioned at different locations within the backlight module. Each light source component is independently controlled by its own driving circuit, allowing precise control of light distribution. This segmentation enables uniform brightness across the entire display panel by independently optimizing illumination for different regions.
Solution Approach 2:
Each light source component is strategically positioned and configured to provide optimal illumination for its specific region. The first light source component is positioned to illuminate the camera opening area uniformly, while the second light source component illuminates the display area uniformly. This local optimization ensures overall brightness uniformity across the entire panel.
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
Enables normal color display and improved product quality by providing necessary illumination to the camera area and maintaining consistent image display across the panel, utilizing a combination of light sources and optimized light distribution to ensure uniform brightness and high refresh rates.
Implementation Method 1
the first light source sequentially emits red light, green light, and blue light to the area of the liquid crystal display panel corresponding to the first opening
Implementation Method 2
a liquid crystal layer disposed between the array substrate and the color filter substrate
Implementation Method 3
the second light source emits light to the liquid crystal display panel except for the area of the liquid crystal display panel corresponding to the first opening
Data Source
AI summary
A liquid crystal display device includes a liquid crystal display panel and a backlight module. The backlight module includes a backlight module body, a first light source component, and a second light source component. The backlight module body is provided with a first opening. The first light source component is disposed on the backlight module body and corresponds to the first opening. When the liquid crystal display panel is displaying, the first light source sequentially emits red light, green light, and blue light to an area of the liquid crystal display panel corresponding to the first opening.