Touch Display Device Recessed Panel Bonding
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Solution Overview
Problem
Conventional touch display devices experience a sense of separation, poor stability, and inferior waterproof and dustproof effects due to a gap between the display panel and the touch panel, which affects user interaction and device reliability.
Innovation Solution
A touch display device design featuring a recessed area on the touch panel adjacent to the display panel, with a bonding portion surrounding the recess, and a cavity enclosed between the panels filled with a colloid, such as optical glue, to ensure complete bonding and minimize the gap, enhancing stability and sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If frame-bonding is used to bond the display panel to the touch panel, then the process is simple and cost is low, but a gap is formed between the display panel and touch panel resulting in poor stability and inferior waterproof and dustproof effect
Solution Approach 1:
The bonding structure is segmented into a bonding portion at the periphery and a recessed portion at the middle of the touch panel. This segmentation allows the bonding colloid to be precisely positioned and contained, eliminating the need for complex full-perimeter bonding while maintaining reliability.
Solution Approach 2:
A bonding colloid is introduced as an intermediary substance between the display panel and touch panel. The colloid fills the bonding portion and recessed portion, creating a reliable bond while maintaining a simple bonding process. The intermediary colloid resolves the contradiction by enabling effective bonding without complex procedures.
2Device complexity
If a gap is formed between the display panel and touch panel, then the bonding process is simplified, but the user experiences a sense of separation and touch feeling deteriorates
Solution Approach 1:
The touch panel is designed with different local qualities: a bonding portion at the periphery for structural attachment and a recessed portion at the middle for optimal touch interaction. This local differentiation allows the gap to be minimized in the critical touch area while maintaining bonding simplicity at the periphery.
Solution Approach 2:
The solution moves from a two-dimensional planar bonding approach to a three-dimensional structure by creating a recessed portion in the touch panel. This dimensional change allows the bonding colloid to be contained more effectively and reduces the gap in the touch area, improving touch feedback without increasing overall complexity.
3Ease of manufacture
If a gap exists between the display panel and touch panel, then manufacturing is easier, but waterproof and dustproof effects are compromised
Solution Approach 1:
The touch panel is pre-formed with a recessed portion before the bonding process. This preliminary action creates a natural containment structure that guides the bonding colloid to the correct position, ensuring proper sealing against water and dust while maintaining ease of assembly. The recessed portion is prepared in advance to receive the bonding colloid.
Solution Approach 2:
The bonding colloid acts as a flexible sealing film that conforms to the bonding portion and recessed portion structure. This flexible film provides effective sealing against water and dust penetration while allowing for simple assembly processes. The colloid's flexibility enables it to fill irregularities and create a reliable seal.
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 eliminates the sense of separation, improves user touch feedback, and significantly enhances the waterproof and dustproof capabilities of the device, thereby increasing its stability and overall performance.
Implementation Method 1
a first colloid is disposed on an area corresponding to the bonding portion between the display panel and the touch panel, to bond the display panel with the touch panel
Implementation Method 2
a second colloid is disposed between the touch panel and cover plate, to bond the touch panel with the cover plate
Data Source
AI summary
The present disclosure provides a touch display device including a display panel, a touch panel, and a cover plate. The side of the touch panel adjacent to the display panel is provided with a recess and a surrounding portion surrounding the recess. By vacuuming the gap formed between the display panel and the touch panel, a portion of the touch panel is recessed into the gap, which reduces the space occupied by the gap, eliminates the sense of space, enhances waterproof and dustproof effects and elevates stability.