Directly Bonded Display Panel and Light Guide Plate for Ultra-Slim Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices face challenges in achieving an ultra-slim design due to increased bezel width and thickness caused by light guide plates and fixing structures, which can lead to image quality degradation and product distortion from self-weight deflection and thermal expansion differences among components.
Innovation Solution
An ultra-slim display device design that directly connects the display panel and light guide plate using a first bonding material, and the light guide plate and back cover using a second bonding material, eliminating the need for middle cabinets and light guide plate holding structures, while incorporating a side finishing material for aesthetic and sealing purposes, and utilizing a vacuum or low-pressure bonding to maintain gaps between patterned elements for improved luminous efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light guide plate and fixing structures are added to transfer light to display panel, then light distribution is improved, but bezel width and thickness increase
Solution Approach 1:
The patent merges the light guide plate with the back cover by directly bonding them together, eliminating the need for separate fixing structures such as middle cabinets and holding structures. This integration maintains the light distribution function while significantly reducing the bezel width and overall thickness of the display device.
Solution Approach 2:
The patent removes unnecessary intermediate components (middle cabinet, light guide plate holding structures) from the system, retaining only the essential light guide plate and back cover directly bonded together. This extraction of redundant elements reduces structural complexity and minimizes bezel dimensions while preserving lighting functionality.
2Stability of the object's composition
If multiple fixing structures are used to hold light guide plate in multiple directions, then light guide plate positioning is improved, but device complexity increases
Solution Approach 1:
The patent combines the positioning and fixing functions into a single bonding interface between the light guide plate and back cover. By directly bonding these two components, the system achieves stable light guide plate positioning without requiring multiple separate fixing structures, thereby reducing device complexity while maintaining positioning stability.
3Ease of manufacture
If conventional bonding methods are used to connect components, then assembly is simplified, but self-weight deflection and thermal distortion occur
Solution Approach 1:
The patent employs vacuum or low-pressure bonding to connect the light guide plate and back cover, representing a change in bonding parameters from conventional atmospheric pressure methods. This advanced bonding technique provides superior bonding strength and stability, preventing self-weight deflection and thermal distortion while maintaining assembly feasibility.
4Length of stationary object
If light guide plate is made thinner to reduce device thickness, then ultra-slim design is improved, but light guide plate strength decreases
Solution Approach 1:
The patent integrates the light guide plate with the back cover through direct bonding, creating a unified structural assembly. This merging provides additional structural support to the thin light guide plate, enabling ultra-slim device thickness while compensating for the reduced strength of the thinner light guide plate through the bonded connection.
Solution Approach 2:
The bonded combination of light guide plate and back cover creates a composite structure that leverages the strengths of both materials. This composite construction provides enhanced overall strength and rigidity, allowing the light guide plate to be made thinner without compromising structural integrity.
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 results in a significantly reduced bezel width and thickness, enhanced component coupling, minimized self-weight deflection, prevention of distortion due to thermal expansion, improved aesthetic appearance, and increased strength, while maintaining an ultra-slim profile and efficient light distribution.
Implementation Method 1
The display panel and the light guide plate may be directly connected to each other using a first bonding material
Implementation Method 2
The light guide plate and the back cover may be directly connected to each other using a second bonding material
Implementation Method 3
The side finishing material may act as a sealant, block light, and improve an aesthetic appearance
Implementation Method 4
The light guide plate and the back cover may be bonded in the vacuum or at a low pressure
Data Source
AI summary
An integrated display module and an ultra-slim display device are disclosed. The display device includes a display panel, a light guide plate located below the display panel, and a back cover located below the light guide plate. The light guide plate is directly connected to the display panel using a first bonding material in a top direction and is directly connected to the back cover using a second bonding material in a bottom direction. The display device has a small bezel width and a small thickness.