Segmented Adhesion Layer for Touch LCD Whitening
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Solution Overview
Problem
The whitening phenomenon occurs in touch displays due to uneven deformation energy transfer during bending, causing disruptions in the electrical field and light leakage, which is not effectively addressed by existing technologies, and the solutions proposed, such as thinning the liquid crystal display screen, increase production costs and yield reduction.
Innovation Solution
A touch type liquid crystal display apparatus with an adhesion layer comprising non-contacting adhesion parts that distribute and absorb deformation energy, reducing the energy transferred to the liquid crystal display screen, thereby alleviating the whitening phenomenon without the need for thinning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the liquid crystal display screen is thinned to solve the whitening phenomenon, then the display quality is improved, but the production cost increases and production yield decreases
Solution Approach 1:
The adhesion layer is divided into multiple independent adhesion parts that are not in contact with each other. These segmented adhesion parts are distributed across the touch screen, with each part independently absorbing deformation energy, thereby effectively reducing the whitening phenomenon without requiring thinning of the liquid crystal display screen
Solution Approach 2:
The invention changes the structural parameters of the adhesion layer from a continuous structure to a segmented structure with specific spacing between parts. This parameter change enables the adhesion parts to independently absorb deformation energy, solving the whitening phenomenon while maintaining manufacturing simplicity and avoiding additional thinning processes
2Object-affected harmful factors
If the liquid crystal display screen is thinned to solve the whitening phenomenon, then the display quality is improved, but the production yield decreases
Solution Approach 1:
The adhesion layer is divided into multiple independent adhesion parts that are not in contact with each other. These segmented adhesion parts are distributed across the touch screen, with each part independently absorbing deformation energy, thereby effectively reducing the whitening phenomenon without requiring thinning of the liquid crystal display screen
Solution Approach 2:
The segmented adhesion parts are designed in advance to absorb deformation energy before it can cause the whitening phenomenon. By providing this cushioning effect through the distributed adhesion parts, the liquid crystal display screen is protected from damage, maintaining high production yield
3Strength
If continuous adhesive is used to bond the touch screen and liquid crystal display screen, then the bonding strength is improved, but the deformation energy absorption capability decreases
Solution Approach 1:
The continuous adhesive layer is segmented into multiple independent adhesion parts with spacing between them. This segmentation allows each adhesion part to independently deform and absorb energy while maintaining strong bonding at each contact point, thus resolving the contradiction between bonding strength and energy absorption
Solution Approach 2:
The adhesion parts are strategically distributed across the touch screen with appropriate spacing. This local distribution creates regions of strong adhesion (at the adhesion parts) and regions of energy absorption (in the spaced areas), optimizing both bonding strength and deformation energy absorption capability
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 effectively disperses deformation energy, reducing light leakage and maintaining display quality while lowering production costs by eliminating the need for thinning processes.
Implementation Method 1
the adhesion parts are capable of absorbing most of deformation energy from the touch screen
Implementation Method 2
After the liquid crystal display screen is energized, electrical field is established around the liquid crystal. Under the action of the electrical field, the liquid crystal rotates.
Data Source
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Figure 5~6
AI summary
The present disclosure relates to the field of display technologies. Embodiments of the present invention provide a touch type liquid crystal display apparatus, comprising a touch screen, a liquid crystal display screen, and an adhesion layer between the touch screen and the liquid crystal display screen. The adhesion layer comprises a plurality of adhesion parts being not in contact with each other, and the adhesion parts are in contact with the touch screen and the liquid crystal display screen, respectively , for fixation of the touch screen with the liquid crystal display screen. Compared to the prior art, the touch type liquid crystal display apparatus has a reduced production cost, and effectively alleviates the whitening phenomenon of the touch display. Embodiments of the present invention also provide a method for manufacturing a touch type liquid crystal display apparatus, which is adopted to produce the abovementioned touch type liquid crystal display apparatus.