Manufacture method of full-lamination touch display module

Abstract

The invention discloses a manufacture method of a full-lamination touch display module. The manufacture method comprises the steps: (1) respectively coating OCA optical cement on two sides of an upper polarizer, and laminating release films; (2) uncovering the release film on one side of the upper polarizer, enabling the OCA optical cement on the side of the upper polarizer to be bonded with one side of a glass substrate, and adhering a lower polarizer to the other side of the glass substrate; (3) uncovering the release film on the other side of the upper polarizer, and enabling the OCA optical cement on the side of the upper polarizer to be bonded with a touch screen; (4) fixedly connecting the lower polarizer with a back light. According to the manufacture method, the OCA optical cement is coated on two sides of the upper polarizer and composited with the release films, and the touch screen can be assembled with the upper polarizer by only uncovering the release films of the upper polarizer when in full lamination, so that the flow in the traditional process for directly bonding the OCA optical cement onto the upper surface of the upper polarizer of a touch display module semi-finished product can be reduced, and the product yield of the full-lamination process can be increased.

Description

technical field [0001] The invention belongs to the processing field of touch screens, and in particular relates to a processing method of a display module in a touch display screen, in particular to a processing method of a touch display module adopting full bonding technology. Background technique [0002] As users have higher and higher requirements for display and touch of smart electronic products, many manufacturers adopt full lamination technology to produce touch display modules. After adopting full lamination technology, not only the design of the product is improved, but the product is thinner , It also simplifies the production process of the supply chain, reduces costs, and no longer needs to purchase touch screens and LCD panels from different manufacturers. [0003] Full bonding technology refers to the use of liquid optical glue or solid optical glue to completely bond the display screen and touch screen together in a seamless manner. In addition to providing...

AI Technical Summary

Problems solved by technology

At present, the high production cost and low yield of full-bonded touch display modules make it impossible for many manufacturers to achieve mass production, which results in very few manufacturers that can actually apply full-bonded technology

Now the main bonding method is to directly attach the OCA optical adhesive to the upper polarizer of the finished display screen, and then set the touch screen on the OCA optical adhesive of the upper polarizer, so that the touch screen and the finished display screen are bonded together. The processing method needs to be laminated many times, and the cost of OCA optical adhesive is high. The release films on both sides are consumables, which occupy a large cost. If the release films on both sides are not matched properly, the product will be defective. increased production costs

At the same time, this processing method will also cause the optical glue to overflow into the backlight panel of the finished display screen, making the backlight panel unable to transmit light normally, resulting in defective products.