Matt Film Layer Reduces LCD Backlight Frame Size
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Solution Overview
Problem
Existing liquid crystal display module backlight structures have a larger frame size due to the need for a light blocking PET film and light enhancement prismatic lens to be arranged in the same layer, which increases the border size and requires a gap between them for smooth assembly.
Innovation Solution
A liquid crystal display module backlight structure that includes a matt film layer with a first end overlapping the FPC light strip and a second end overlapping the light enhancement prismatic lens, eliminating the need for a light blocking PET film in the same layer as the prismatic lens and reducing the frame size, and optionally using a light blocking PET film with specific portions and bonding methods to effectively block light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the light blocking PET film and light enhancement prismatic lens are arranged in the same layer, then the assembly is smooth, but the frame size increases due to the need for a gap between them
Solution Approach 1:
The patent combines the light blocking function and light diffusion function into a single matt film layer. The matt film layer includes a light blocking layer and a diffusion layer that are integrated together, eliminating the need for separate light blocking PET film and light enhancement prismatic lens components. This merging of functions reduces the number of components and eliminates the gaps required between separate components, thereby reducing the overall frame size while maintaining assembly smoothness.
Solution Approach 2:
The matt film layer serves multiple functions simultaneously: it blocks light from the FPC light strip, prevents light incidence into the side section of the prismatic lens, and provides light diffusion. By making this single component multi-functional, the patent eliminates the need for multiple separate components (light blocking PET film, diffusion sheet, and prismatic lens), thereby reducing the frame size without compromising assembly ease.
2Object-affected harmful factors
If the light blocking PET film is placed in the same layer as the light enhancement prismatic lens, then light blocking is effective, but the border size increases
Solution Approach 1:
The patent merges the light blocking layer and diffusion layer into a single matt film layer that is positioned between the light guide plate and the prism lens array. This integrated structure blocks light from reaching the side sections of the prismatic lens while maintaining a compact border size, as the combined layer occupies less space than separate light blocking film and diffusion sheet components would require.
3Ease of manufacture
If a gap is kept between the light blocking PET film and light enhancement prismatic lens for smooth assembly, then assembly is easier, but the frame size increases
Solution Approach 1:
By combining the light blocking and diffusion functions into a single matt film layer, the patent eliminates the need for gaps between separate components. The integrated structure allows for direct contact and stable bonding between the matt film layer and adjacent components (prism lens array and light guide plate), achieving smooth assembly without requiring additional spacing that would increase the frame size.
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 reduces the frame size of the liquid crystal display module backlight structure by minimizing light incidence into the side section of the prismatic lens and enhances stability through stable bonding of the light blocking PET film, improving the display effect.
Implementation Method 1
the first end overlaps the FPC light strip... to effectively block light
Implementation Method 2
a diffusion sheet; the light blocking PET film is located on a side, facing away from the light guide plate, of the diffusion sheet
Data Source
AI summary
The disclosure relates to the technical field of liquid crystal display, and discloses a liquid crystal display module backlight structure which includes a light blocking tape, a FPC strip, rubber-iron layer, a reflective sheet, a light enhancement prismatic lens, a light guide plate, and a matt film layer, a first end of the matt film layer overlaps the FPC light strip and a second end overlaps the light enhancement prismatic lens; the first end is bonded to the light blocking tape and the second end is positioned between the light enhancement prismatic lens and the light guide plate.