Dispensing method for display screen device with frameless fourth edge

Abstract

The invention discloses a dispensing method for a display screen device with a frameless fourth edge. A large-size screen comprises a first substrate, a sealing layer (CF layer) and a second substrate, wherein the sealing layer (CF layer) is positioned between the first substrate and the second substrate. The dispensing method for the large-size screen comprises the following steps of: enabling the fourth edge of the first substrate to protrude out of the fourth edge of the sealing layer (CF layer), enabling the fourth edge of the first substrate to be flush with the fourth edge of the second substrate, forming a gap between the first substrate and the second substrate, and enabling the other three edges of the first substrate, the sealing layer (CF layer) and the second substrate to be flush; and respectively placing a baffle on two edges, perpendicular to the fourth edge, of the gap, rotating the screen to be dispensed, dispensing by using a row of needle dispensing devices, and performing light curing after dispensing. Frameless dispensing of the fourth edge of the large-size screen is realized.

Description

technical field [0001] This field relates to the field of dispensing glue for equipment, a kind of dispensing glue for a fourth-side borderless display device, especially a method for dispensing glue for the fourth side of OLED / LCD TV large-size screens. Background technique [0002] At present, the dispensing process in the market can only dispens glue on the three sides of the TV screen, and the fourth side is fixed with a shading plate. The use of a shading plate or the shading and fixing of the fourth side depends on the existing large-size screen structure. In the existing technology, the inside of the fourth side screen is exposed, and a light-shielding plastic frame is installed on the outside, so the fourth side frame is wider. At present, OLED / LCDTV large-size screens are composed of upper POL, CF and TFT, where CF is set on Between the upper POL and the TFT, where the upper POL refers to the upper polarizer, CF refers to the color filter, and TFT is a thin film tra...

AI Technical Summary

Problems solved by technology

[0004] If the conventional dispensing method is used to dispensing the upper POL, CF and TFT of the large-size screen, there will be the following problems: 1. The large-size screen currently adopts the border dispensing process, which makes the effective use area of ​​the screen small and affects the beauty of the product. Point of view; 2. The design method of the substrate in the prior art cannot realize the operation of borderless dispensing; 3. The dispensing process in the prior art lasts for a long time, and the dispensing efficiency is low; 4. It has not yet been proposed for large size The frameless high-efficiency dispensing method of the screen, the dispensing needle cannot fully send the glue into the gap to be filled, making the sealing effect of the seal unsatisfactory

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