Slot-Shaped Sealing Structure for Display Module Glue Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing techniques for sealing display devices face challenges with poor coating accuracy, glue overflow, and glue shortage due to limitations in process accuracy, which affect the yield and reliability of the display devices, especially in full-screen displays where the frame size needs to be minimized for sweat stain and grease resistance.
Innovation Solution
A display module is designed with a slot-shaped structure formed by the support module and cover plate arranged beyond the display panel, where the sealing glue is located within this slot, ensuring precise positioning and reducing the risk of glue overflow or shortage, thereby enhancing the reliability and yield of the display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the frame size is minimized for full-screen display, then the display area is increased, but the sealing accuracy deteriorates due to process limitations
Solution Approach 1:
The patent introduces a support module as an intermediary component that extends beyond the display panel to form a slot-shaped structure. This structure serves as a physical guide and constraint for the sealing glue, mediating between the minimized frame size and the required sealing accuracy. The support module provides a predefined path that compensates for process accuracy limitations, ensuring precise glue placement even with reduced frame dimensions.
Solution Approach 2:
The support module is pre-formed to create the slot-shaped structure before the sealing glue is applied. This preliminary action establishes the exact geometry and position where the glue should be placed, eliminating the need for high real-time process accuracy. The pre-defined slot acts as a template that guides the sealing process, ensuring consistent accuracy regardless of frame size reductions.
2Ease of manufacture
If traditional sealing methods are used, then the process is simple, but glue overflow and glue shortage occur due to poor coating accuracy
Solution Approach 1:
The slot-shaped structure formed by the support module and cover plate serves as an intermediary guide system. It maintains the simplicity of the sealing process by providing a physical channel that naturally guides the glue, eliminating the need for complex control systems. The slot acts as a passive mediator that ensures consistent glue placement, preventing both overflow and shortage while maintaining ease of manufacture.
3Weight of moving object
If the frame size is reduced, then the device becomes thinner and lighter, but the risk of sweat stain and grease penetration increases
Solution Approach 1:
The support module is pre-formed to create an extended slot-shaped structure that protrudes beyond the display panel. This preliminary structural preparation ensures that the sealing glue has a defined path that extends beyond the minimal frame boundaries, creating an effective barrier against sweat and grease penetration while maintaining the thin and lightweight design.
Data Source
AI summary
Provided are a display module, a display device, and a preparation method of a display device. The display module includes a display panel, a support module and a sealing glue. The display panel includes a display portion, and the display portion is provided with a light-emitting structure. A cover plate is arranged at a side of the display portion in a thickness direction, and the support module is arranged at a side of the display portion away from the cover plate. In a direction parallel to a plane where the cover plate is located, the support module and the cover plate are arranged beyond the display panel, to form a slot-shaped structure, and the sealing glue is at least partially located within the slot-shaped structure.