Backlight Module Viscous Connection Layer Buffering
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Solution Overview
Problem
Conventional liquid crystal display devices face limitations in achieving high brightness and color gamut due to inadequate light transmission and distribution, resulting in poor display quality and user experience.
Innovation Solution
A backlight module with a connection layer made of viscous material, such as transparent adhesive or a combination with quantum dots, sandwiched between the light source and the light guide plate, which buffers the light source and reduces the gap between them, enhancing light transmission and distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light source is placed close to the light guide plate to improve light transmission, then the brightness is improved, but the light source may be squeezed and produce adverse effects
Solution Approach 1:
The patent introduces a connection layer made of viscous material as an intermediary between the light source and the light guide plate. This connection layer fills the gap between the two components, allowing the light source to be positioned closer to the light guide plate for improved light transmission while the viscous material absorbs and buffers squeezing forces, preventing adverse effects on the light source.
Solution Approach 2:
The viscous material in the connection layer provides beforehand cushioning by being positioned between the light source and the light guide plate before assembly. This cushioning effect prevents squeezing damage to the light source while maintaining close proximity for optimal light transmission.
2Stability of the object's composition
If a rigid connection structure is used between light source and light guide plate, then structural stability is improved, but light transmission is reduced due to gaps and interfaces
Solution Approach 1:
The connection layer acts as an optical intermediary that eliminates air gaps between the light source and light guide plate. The viscous material provides continuous optical contact, improving light transmission while maintaining structural stability through adhesive bonding.
Solution Approach 2:
The patent changes the physical state of the connection material from solid/rigid to viscous/soft. This parameter change allows the material to conform to surfaces, eliminate gaps, and provide both structural stability and optimal optical contact for maximum light transmission.
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
Significantly improves the brightness of the display device by up to 20% and expands the color gamut, resulting in a high-brightness, high-color-gamut display with improved light efficiency and color purity.
Implementation Method 1
the connection layer is formed based on a viscous material and is configured to transmit light emitted by the light source
Implementation Method 2
the viscous material includes a transparent adhesive and quantum dots, and the quantum dots are doped in the transparent adhesive
Data Source
AI summary
A backlight module and a display device. The backlight module includes a light source, a light guide plate, and a connection layer; the connection layer is sandwiched between the light source and the light guide plate, and is in contact with the light source and the light guide plate respectively; the connection layer is formed based on a viscous material and is configured to transmit light emitted by the light source, which can achieve the buffering effect through the viscous material of the connection layer, and the light source will not produce adverse effects even if being squeezed. Further, the gap between the light source and the light guide plate can also be filled by the connection layer, which is approximately equivalent to making the light source being closer to the light guide plate.