Optical Member Coupling for Narrow Bezel Displays
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Solution Overview
Problem
The existing liquid crystal display devices face challenges in achieving a narrow bezel due to the need for a non-active area to support the liquid crystal panel and couple the backlight unit, leading to issues with light leakage and structural integration.
Innovation Solution
A display device design that integrates a display panel with a backlight unit using an optical member surrounding the outside of the backlight unit, coupled with an elastic adhesive portion to prevent light leakage and enhance structural coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a guide panel and foam pad mechanism is used to support the liquid crystal panel and couple it with the backlight unit, then the panel is securely supported and coupled, but a non-active area is required which prevents achieving a narrow bezel
Solution Approach 1:
The optical member is merged with the backlight unit structure, forming an integrated assembly where the optical member surrounds the backlight unit. This integration eliminates the need for separate guide panels and foam pads, allowing the display panel to be directly coupled with the integrated optical member-backlight unit assembly, thereby achieving a narrow bezel while maintaining secure support.
Solution Approach 2:
The optical member serves multiple functions: it acts as a light guide, provides structural support for the display panel, and enables coupling with the backlight unit. This multi-functionality replaces the need for separate support mechanisms like guide panels and foam pads, reducing the non-active area and enabling a narrow bezel design.
2Area of stationary object
If the display panel is directly coupled with the backlight unit to achieve integration and narrow bezel, then the bezel can be narrowed, but light leakage may occur at the outer region of the display panel
Solution Approach 1:
The optical member acts as an intermediary element between the display panel and the backlight unit. It surrounds the backlight unit and provides a light-tight interface, preventing light leakage at the outer region while enabling direct coupling and narrow bezel achievement.
3Stability of the object's composition
If rigid coupling structures are used to support the display panel, then structural stability is achieved, but deformation of the display panel due to environmental changes cannot be absorbed
Solution Approach 1:
The elastic adhesive portion changes its physical parameters (elasticity) to provide both structural stability and deformation compensation. The elastic properties allow the adhesive to maintain secure coupling while accommodating thermal expansion and other environmental deformations of the display panel.
4Reliability
If multiple separate components (guide panel, foam pad, support mechanism) are used to couple the backlight unit with the display panel, then secure coupling is achieved, but the device complexity increases and manufacturing becomes more difficult
Solution Approach 1:
The optical member and backlight unit are merged into an integrated assembly, eliminating the need for separate guide panels and foam pads. This reduction in component count simplifies the assembly process and manufacturing while maintaining secure coupling through the integrated structure.
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 design allows for a slimmed-down display device with improved coupling force between components, preventing light leakage and enabling a narrow bezel while compensating for panel deformation due to environmental changes.
Implementation Method 1
an elastic adhesive portion coupling the backlight unit with the optical member... to absorb deformation of a display panel
Data Source
AI summary
A display device is discussed, which can include a display panel; a backlight unit providing light to the display panel; an optical member coupled to at least one of an upper surface and a lower surface of the display panel and extended to an outer direction of the display panel to surround an outside of the backlight unit or the display panel; and an elastic adhesive portion coupling the backlight unit with the optical member.