Full-lamination process for touch display module

Abstract

The invention provides a full-lamination process for a touch display module. According to the full-lamination process, a big piece of solid optical cement is adhered on an upper polarizer in advance, then the big piece of solid optical cement is cut to have same sizes with the length and the width of the upper polarizer, the procedure that the solid optical cement is adhered onto the upper surface of the upper polarizer is eliminated in the full-lamination process, and the product yield of the full-lamination process is increased. Meanwhile, according to the full-lamination process, two procedures are set to check the quality of semi-finished products, and bad products cannot flow into the next procedure, so that the product yield is significantly increased. A touch screen is adhered with the upper polarizer of a display screen semi-finished product without a back light plate through the solid optical cement, and after the touch screen is adhered with the upper polarizer, the back light plate and a lower polarizer of the display screen semi-finished product are assembled together, so that the solid optical cement is prevented from overflowing into the back light plate, the back light plate can be normally pervious to light, the bad products cannot be caused, and the production cost is reduced.

Description

Technical field [0001] The invention belongs to the technical field of touch screens, and in particular relates to a full bonding process for touch display modules. Background technique [0002] As customers have higher requirements for the display and touch of smartphones, many well-known manufacturers have tried to adopt the full-fit technology of touch display modules. The benefits of thinner products have not only improved product design, but also simplified The production process of the supply chain has been reduced, and the cost has been reduced. It is no longer necessary to purchase touch screens and LCD panels from different manufacturers. Full lamination technology is to use liquid optical glue or solid optical glue to completely paste the display and touch screen together in a seamless manner. In addition to providing better display effects, the full lamination technology is also closely integrated with the display. The intensity is improved, the interference caused by...

AI Technical Summary

Problems solved by technology

[0003] At present, the high cost and low yield rate of fully laminated touch display modules prevent many manufacturers from achieving mass production, resulting in very few manufacturers actually applying fully laminated technology

Now the main bonding method is to directly attach the optical adhesive to the upper polarizer of the finished display screen, and then set the touch screen on the optical adhesive on the upper polarizer, so that the touch screen and the finished display screen are bonded together. This manufacturing process It will cause the optical glue to overflow into the backlight panel of the finished display, making the backlight panel unable to transmit light normally, resulting in defective products and increasing production costs