Light Guide Plate Housing for Thin Display Devices
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Solution Overview
Problem
The challenge is to further reduce the thickness of display units in terminal equipment such as laptops, as current methods like grinding panel glass or using plastics as substrates have limitations.
Innovation Solution
The solution involves a display device configuration that includes a protection panel, a liquid crystal display panel, a backlight, a light guide plate, and a reflection unit, where the light guide plate replaces part of the housing to accommodate and protect the liquid crystal display panel and backlight, allowing for a reduction in total thickness by using its area greater than the panel's to create a space for these components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If traditional methods like grinding panel glass or using plastics as substrates are used to reduce thickness, then the display unit thickness is reduced, but the total thickness cannot be further reduced due to material and technique limits
Solution Approach 1:
The patent merges the housing function with the light guide plate by making the light guide plate extend to the edges of the display panel and connect with side housings, forming an integrated structure that eliminates the need for a separate back housing, thereby achieving further thickness reduction beyond traditional methods
Solution Approach 2:
The light guide plate serves multiple functions: it guides light from the backlight uniformly across the display panel, provides structural support as part of the housing, and protects the backlight and liquid crystal display panel from damage, replacing what would traditionally require separate components
2Length of moving object
If the light guide plate area is made greater than the panel area to create accommodating space, then the total thickness is reduced, but the structural complexity increases
Solution Approach 1:
The patent segments the housing into modular components: the light guide plate forms the back housing portion, while separate side housings connect to its edges, allowing for simplified manufacturing and assembly while maintaining the integrated structure's thickness-reduction benefits
Solution Approach 2:
The liquid crystal display panel and backlight are nested within the space formed by the extended light guide plate, with the light guide plate's larger area creating a cavity that accommodates these components while maintaining a thin overall profile
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 effectively reduces the total thickness of the display device by utilizing the light guide plate as a housing component, while ensuring uniform light distribution and protection of the display panel and backlight, enhancing the portability of terminal equipment.
Implementation Method 1
a reflection unit disposed below the light guide plate, configured to reflect the light produced by the backlight to the light guide plate
Data Source
AI summary
A display device and terminal equipment including the display device are described. The display device includes a first panel having a first area; a liquid crystal display panel disposed below the first panel and having a second area, configured to display an image based on an image signal; a backlight disposed below the liquid crystal display panel, configured to produce light; a light guide plate disposed below the liquid crystal display panel and having a third area, configured to fix the backlight and cause the light produced by the backlight to be uniformly irradiated on the liquid crystal display panel; and a reflection unit disposed below the light guide plate, configured to reflect the light produced by the backlight to the light guide plate. A space for accommodating and protecting the liquid crystal display panel and the backlight is formed between the light guide plate and the first panel.