Integrated Light Guide Plate Mounting for Double-Sided Display Modules
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Solution Overview
Problem
Existing double-sided display modules have large thicknesses and poor assemblability due to the use of direct-type backlight modules with stacked light boards and optical film groups, along with additional heat dissipation components.
Innovation Solution
A light guide plate with integrated mounting portions that allow for direct mounting of optical film groups and display panels on the light-exit sides, eliminating the need for additional components like backplanes or plastic frames, and utilizing a side-type light guide structure with microstructures or nanoparticles for efficient light propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If direct-type backlight modules with stacked light boards and optical film groups are used, then the display module can be assembled, but the thickness becomes large and assemblability deteriorates
Solution Approach 1:
The patent merges the light guide plate and mounting portion into a single integrated component. The mounting portion is directly formed on the light guide plate body through injection molding, eliminating the need for separate mounting structures and reducing the overall thickness of the display module while maintaining ease of assembly.
Solution Approach 2:
The light guide plate serves multiple functions: it guides light from the light source and simultaneously provides mounting surfaces for optical film groups and display panels through its integrated mounting portion. This multi-functionality reduces the number of separate components needed, thereby reducing thickness without compromising assemblability.
2Ease of manufacture
If additional components like backplanes or plastic frames are used for mounting, then the display module can be assembled, but the device complexity increases
Solution Approach 1:
The mounting portion is integrated directly into the light guide plate body, eliminating the need for separate backplanes or plastic frames. This merging of functions reduces structural complexity while maintaining the ability to assemble optical film groups and display panels efficiently.
3Ease of manufacture
If separate mounting structures are used, then components can be mounted, but the volume of the display module increases
Solution Approach 1:
The mounting portion is formed as an integral part of the light guide plate, eliminating the need for separate mounting structures that would increase volume. This integration reduces the overall volume of the display module while maintaining assembly capability.
4Reliability
If conventional backlight modules are used, then the display can function, but light energy utilization is poor
Solution Approach 1:
The light guide plate incorporates localized microstructures (such as microlenses or reflective patterns) at specific regions to optimize light extraction and distribution. This local quality enhancement improves light energy utilization by directing light more effectively toward the display panels without compromising overall display function.
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 solution reduces the thickness and improves assemblability of the display module by integrating the light guide plate, optical film groups, and display panels, achieving a more compact and efficient double-sided display with enhanced light energy utilization and structural rigidity.
Implementation Method 1
a light guide plate body having two light-exit surfaces that are opposite and parallel, and at least one light-incident surface that intersects the two light-exit surfaces
Implementation Method 2
a light guide plate body with netted dots or a light guide plate body with nanoparticles
Data Source
AI summary
A light guide plate includes: a light guide plate body having two light-exit surfaces that are opposite and parallel, and at least one light-incident surface that intersects the two light-exit surfaces; and a mounting portion located on a non-light-incident side of the light guide plate body. The mounting portion and the light guide plate body are an integrated structure, and a portion of the mounting portion located on a light-exit side of each light-exit surface of the two light-exit surfaces is configured to mount an optical film group and a display panel.