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Preparation method of OCA (optical clear adhesive) applicable to OLED (Organic Light Emitting Diode)

A technology of optical glue and adhesive, applied in the field of electronics, to achieve the effect of easy control of thickness, not easy to warp, and solve the fatal weakness

Inactive Publication Date: 2018-02-16
深圳市西陆光电技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The OCA optical glue used in OLEDs currently in demand in the market, currently only the OCA glue of foreign 3M company can achieve the performance of OLED in all aspects.

Method used

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  • Preparation method of OCA (optical clear adhesive) applicable to OLED (Organic Light Emitting Diode)
  • Preparation method of OCA (optical clear adhesive) applicable to OLED (Organic Light Emitting Diode)
  • Preparation method of OCA (optical clear adhesive) applicable to OLED (Organic Light Emitting Diode)

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Experimental program
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Embodiment Construction

[0024] A kind of preparation method of the OCA optical glue that is used for OLED, carries out successively according to following steps:

[0025] Step 1: adding the soluble organometallic complex into the solvent for preparation to prepare a solution of the soluble organometallic complex with a certain mass concentration;

[0026] Step 2: adding a weakly alkaline anti-acid agent to the acrylate adhesive, and mixing evenly to obtain an acrylate adhesive mixture;

[0027] Step 3: uniformly mixing the soluble organometallic complex solution obtained in step 1 with the acrylate adhesive mixture obtained in step 2 to obtain an organic metal-containing adhesive mixture;

[0028] Step 4: adding an antioxidant and an epoxy crosslinking agent to the organic metal-containing adhesive mixture obtained in step 3, and mixing uniformly to obtain an adhesive mixture;

[0029] Step 5: Coat the adhesive mixture obtained in Step 4 on the release surface of the first release film, dry at 70-90...

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Abstract

The invention provides a preparation method of an OCA (optical clear adhesive) applicable to an OLED (Organic Light Emitting Diode), and belongs to the technical field of electrons. The method comprises the following steps: adding a soluble organic metal complex to a solvent to prepare a soluble organic metal complex solution with certain mass concentration; adding an alkalescent antacid to an acrylate adhesive, and uniformly mixing to obtain an acrylate adhesive mixture; uniformly mixing the soluble organic metal complex solution obtained in step 1 and the acrylate adhesive mixture obtained in step 2 to obtain an organic metal containing adhesive mixture; sequentially adding an antioxidant and an epoxy crosslinking agent to the organic metal containing adhesive mixture obtained in step 3;uniformly mixing to obtain the adhesive mixture. Compared with liquid OCA, the OCA prepared through the method has the advantages that the thickness is easily controlled, and pollution is hardly caused, and the operation is convenient.

Description

technical field [0001] The invention belongs to the technical field of electronics, and relates to a preparation method of OCA optical glue used for OLEDs. Background technique [0002] The research and development of OCA optical glue and the main application of industrialized products: OCA optical glue is divided into two categories, one is resistive, and the other is capacitive. The resistive optical glue can be divided into 50um and 50um according to the thickness. 25um, capacitive optical glue is divided into 100uM, 175uM, 200uM, 250uM. OCA optical glue can be used in different fields according to different thicknesses. Its main uses are: electronic paper, transparent device bonding, projection screen assembly, aerospace or military optical device assembly, display assembly, lens assembly, resistive touch screen G+F +F, F+F, capacitive touch screen, panel, ICON and plastic materials such as glass and polycarbonate are used for bonding transparent optical components (suc...

Claims

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Application Information

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IPC IPC(8): C09J7/10C09J7/40C09J7/30C09J4/04C09J4/06C09J11/06C09J11/08C09J11/04
CPCC09J7/00C09J4/06C09J11/04C09J11/06C09J11/08C09J2203/326
Inventor 林壁鹏
Owner 深圳市西陆光电技术有限公司
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