Borderless Display Panel Bonding via L-Shaped Back Plate
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Solution Overview
Problem
Conventional display devices without a front frame face challenges in ensuring bonding strength and achieving a borderless design due to the limited width of the non-display region, which affects the display's appearance and functionality.
Innovation Solution
A display device design featuring a back plate with an L-shaped bent portion, where the display panel is bonded to the side plate using an adhesive layer that covers both the non-light-emitting and light-emitting surfaces, enhancing the bonding region and eliminating the need for a front frame, while maintaining a thin and aesthetically pleasing borderless design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the width of the non-display region is reduced to achieve a borderless design, then the appearance quality is improved, but the bonding strength between the display panel and the frame is weakened
Solution Approach 1:
The adhesive layer extends from the non-light-emitting surface onto the light-emitting surface of the display panel, transitioning the bonding area from a two-dimensional plane to a three-dimensional structure that utilizes both surfaces. This dimensional extension allows the bonding region to overlap with the display region, maintaining strong bonding while achieving a borderless appearance.
Solution Approach 2:
The adhesive layer is divided into different regions: a first adhesive layer on the non-light-emitting surface and a second adhesive layer on the light-emitting surface. This segmentation allows each region to serve specific functions - the first layer provides primary bonding while the second layer extends the bonding area into the display region, solving the contradiction between borderless design and bonding strength.
2Strength
If the bonding area is increased to improve bonding strength, then the structural integrity is improved, but the device complexity increases
Solution Approach 1:
The adhesive layer serves multiple functions simultaneously: it bonds the display panel to the back plate, extends the bonding area onto the light-emitting surface to maintain borderless design, and provides structural support. This multi-functionality increases bonding strength without proportionally increasing device complexity, as the same component performs multiple roles.
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 ensures strong bonding between the display panel and the side plate, reduces the risk of injuries from sharp edges, and achieves a borderless design by increasing the bonding area, thereby improving the display's structural integrity and appearance.
Implementation Method 1
an adhesive layer, wherein the adhesive layer is configured to bond a non-light-emitting surface of the display panel to a surface of the side plate distal from the bottom plate
Data Source
AI summary
A display device includes: a back plate, wherein the back plate is provided with an L-shaped bent portion, the bent portion including a bottom plate and a side plate; a display panel, wherein the display panel is disposed on one side of the side plate distal from the bottom plate, an orthographic projection of the display panel on the bottom plate is partially overlapped with an orthographic projection of the side plate on the bottom plate; and an adhesive layer, wherein the adhesive layer is configured to bond a non-light-emitting surface of the display panel to a surface of the side plate distal from the bottom plate, and the adhesive layer is further configured to bond to a side surface of the display panel, wherein the side surface is configured to connect a light-emitting surface and the non-light-emitting surface of the display panel.