Edge-self-sealing quantum dot film

Abstract

The invention relates to a quantum dot film, particularly an edge-self-sealing quantum dot film. The edge-self-sealing quantum dot film is provided with a quantum dot layer, wherein a water oxygen barrier layer is respectively arranged on the upper and lower surfaces of the quantum dot layer; the quantum dot layer is composed of liquid microcapsules, quantum dots, dispersed particles, a matrix resin and a film forming aid; the liquid microcapsules are uniformly distributed in the quantum dot layer; each of the liquid microcapsules is provided with a liquid capsule core; and a solid capsule wall is arranged outside each liquid capsule core. After the edge-self-sealing quantum dot film is cut off, the liquid microcapsules at the notch can be cut off, the film forming liquid in the liquid microcapsules can seep and be fused mutually, and the liquid can implement homogeneous immersion on the film edge under the action of surface tension; and the liquid can be cured to form a film under the condition of normal temperature, heating or ultraviolet irradiation, thereby performing a sealing function on the edge of the quantum dot film. The sealing process is not limited by the edge contour of the film, and the edge-self-sealing quantum dot film can also have a sealing effect on the internal edges of complicated film edge contours or locating hole films.

Description

technical field [0001] The invention relates to a quantum dot film, in particular to an edge self-sealing quantum dot film whose edge can realize self-sealing after being cut. Background technique [0002] The quantum dot film has been applied to liquid crystal display devices, which increases the color gamut of liquid crystal display devices to above 100% NTSC, and significantly improves the accuracy and vividness of color display. According to the existing production technology, the quantum dot film is manufactured in a roll-to-roll manner. Before the quantum dot film is installed in the display device, the quantum dot film needs to be cut according to the size requirements of different devices. After the quantum dot film is cut off, the quantum dots on the edge of the quantum dot film will be exposed (Chinese patent CN 104937729 A), which will have two adverse effects: (1) the quantum dots on the edge of the film may fall off and cause environmental pollution; (2) The qu...

AI Technical Summary

Problems solved by technology

Compared with the prior art, the disadvantages of this method are: (1) need to change coating equipment; (2) intermittent coating is not as good as continuous coating; (3) increases the time required for coating edge sealant process, which reduces production efficiency; (4) the coating area of ​​quantum dot glue and the area surrounded by edge sealing glue need to be precisely aligned, which increases technical difficulty and reduces the product qualification rate; (5) quantum dots of one size The dot film can only correspond to one cutting size, and the size adaptability of the product is poor; (6) In order to ensure that the quantum dot layer is in the middle of the film, the quantum dot film needs to be precisely aligned with the cutting mold, which increases the technical difficulty and reduces the Product qualification rate; (7) The positioning holes need to be made in the edge banding area, which makes the width of the edge banding area larger, which increases the width of the display device frame and affects the appearance

[0004] In addition, people try to coat the edge of the quantum dot film with adhesive or extend the length of the water-oxygen barrier layer to cover the edge of the quantum dot film (Chinese patent CN 104501043 A). The disadvantages are: (1) coating the adhesive on the edge of the quantum dot film increases the production process and reduces production efficiency; (2) it is difficult to coat the edge of a film with a thickness of several hundred microns, and the corresponding machinery and equipment need to be customized; ( 3) It is difficult to coat the inner edge of the membrane and the edge of the complex contour such as the positioning hole on the membrane

Compared with the prior art, the disadvantages of extending the length of the water-oxygen barrier layer to cover the edge of the quantum dot film are: (1) it is necessary to paste the water-oxygen barrier layer on the upper and lower surfaces of the quantum dot layer, which increases the process of laminating the film once and reduces the Production efficiency; (2) A quantum dot film of one size can only correspond to one cutting size, and the size adaptability of the product is poor; (3) In order to ensure that the quantum dot layer is in the middle of the film, the quantum dot film needs to be cut with the cutting die. Accurate alignment increases technical difficulty and reduces product qualification rate; (4) The positioning holes need to be made in the extended water-oxygen barrier layer area, which makes the extended water-oxygen barrier layer area wider and increases the width of the display device frame and affect the beauty

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