JPH11143395A - Display devices and adhesives and solid particles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conventional epoxy-based adhesive obtained by mixing an amine as a curing agent into a main component, especially when used for sealing or sealing of a liquid crystal display device or a semiconductor device. Of the remaining amine was eluted or reacted and the performance of the device was impaired. SOLUTION: In order to solve the above-mentioned problem, in the present invention, a solid particle obtained by adding or binding a component acting as a curing agent in pores is used as a curing agent in an epoxy-based adhesive. By using these materials for sealing and sealing liquid crystal display devices and semiconductor devices, the reliability of these devices has been improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology relating to processed solid particles and an adhesive using the same, and a technology of a display device using the same.

[0002]

2. Description of the Related Art Conventionally, epoxy adhesives have been widely used because of their excellent adhesive performance and strength. Epoxy adhesives are usually obtained by mixing amines as a curing agent into a main component.

[0003]

A conventional epoxy adhesive obtained by mixing an amine as a curing agent into a main component is unreacted, particularly when used for sealing or sealing a liquid crystal display device or a semiconductor device. Of the remaining amine was eluted or reacted and the performance of the device was impaired.

[0004]

In order to solve the above-mentioned problems, in the present invention, an epoxy adhesive is prepared by using solid particles having a component acting as a curing agent in pores or being bonded thereto. By using those added as hardeners, particularly for sealing and sealing liquid crystal display devices and semiconductor devices, the reliability of these devices has been successfully improved.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. FIG. 1 is a conceptual diagram showing an embodiment of the present invention. Liquid crystal display sealant layer 1
In 1, the porous solid particles 12 having a component acting as a curing agent added to the inner surface of the pores are mixed. The porous solid particles function as a curing agent for the adhesive layer.

[0007]

FIG. 2 is a conceptual diagram of a liquid crystal display according to the present invention. In the present embodiment, porous solid particles having a component acting as a hardener added to the inner surface of the hole are mixed as a sealant 24 for bonding the opposing substrates 21 and 22 to sandwich the liquid crystal layer 23. Epoxy resin is used.

[0008] The liquid crystal display according to the structure of the present invention comprises:
The component that acts as a curing agent in the epoxy resin is unlikely to elute or react with the liquid crystal material that comes in contact with the sealant. And the yield in device manufacturing can be improved.

(Embodiment 2) Next, an example in which the present invention is used as a sealant for a liquid crystal display will be described with reference to FIG. In this embodiment, porous solid particles having a component acting as a hardener added to the inner surface of the hole are mixed as a sealant 34 for bonding the opposing substrates 31 and 32 to sandwich the liquid crystal layer 33. An epoxy resin mixed with porous solid particles having a component acting as a curing agent on the inner surface of the hole is also used as the sealing agent 35 for closing the injection port after liquid crystal injection. .

The liquid crystal display according to the structure of the present invention comprises:
It is unlikely that the component acting as a hardener in the epoxy resin will elute or react with the sealant and the liquid crystal material in contact with the sealant, which may cause abnormal alignment of the liquid crystal layer and threshold fluctuation. Is low, the reliability is high,
It has also become possible to improve the yield in device manufacturing.

(Embodiment 3) Next, an example of an adhesive according to the present invention will be described with reference to FIG. In this embodiment, a two-part epoxy resin that is cured by mixing a main agent 41 and a curing agent 42 containing porous solid particles provided with a component acting as a curing agent on the inner surface of a hole according to the present invention. An adhesive was produced.

The adhesive of the present invention has a low possibility that the component acting as a curing agent in the epoxy resin is eluted from the cured adhesive layer or reacts with a material that comes into contact with the interface, and is used for liquid crystal or semiconductor applications. Has a low possibility of adversely affecting device performance, so that the reliability is high, and the yield in device manufacturing can be improved.

In the adhesive according to the present invention, the porous solid particles having a component acting as a curing agent added to the inner surface of the hole according to the present invention, which is used as a curing agent, are exposed to light such as heat or ultraviolet light or an electron beam. As an adhesive that cures by heat or light such as ultraviolet rays or an electron beam, it is coated with a coating so that the component that acts as a curing agent inside is released or effective in response to Can also be used.

(Example 4) Next, referring to Fig. 5, an example of a porous solid particle according to the present invention in which a component acting as a curing agent is provided on the inner surface of a hole will be described. In this embodiment, first, colloid particles composed of a silicate and an inorganic compound are prepared in an alkaline mixed aqueous solution, and a part of elements other than silicon and oxygen is dissolved from the colloid particles by an acid or ion exchange method. By removing using a method, porous solid particles 51 were obtained. To this, triethylamine was added as a component 52 serving as a curing agent, and was held in the pores of the porous solid particles.

The method for producing the solid particles is not limited to the above-described method, and any method may be used as long as the shape is porous and granular. There is no limitation on the material of the solid particles. For example, there is no problem even if the particles are polymer particles.

The component acting as a curing agent applied to the porous solid particles can be appropriately selected from amines.
Furthermore, there is no problem even if an acid anhydride, imidazoles or the like is used. In addition, there is no problem even if the curing agent applied to the porous solid particles is bonded to the pore wall surface of the solid particles.

The porous solid particles provided with a substance acting as a curing agent on the inner surface of the pores may be coated on the surface with any material, especially light such as heat or ultraviolet light or electron beam. By applying a coating such that a substance acting as a curing agent inside is released or effective in response to the above, the function as a curing agent is exerted by heat or light such as ultraviolet rays or an electron beam. Good.

[0018]

According to the present invention, there is provided a liquid crystal display device or a semiconductor device comprising solid particles obtained by adding or binding a component acting as a curing agent in pores and adding the particles to an epoxy adhesive as a curing agent. When used for sealing, sealing, and the like of devices, the reliability of these devices can be improved, and the performance thereof can be significantly improved.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the present invention.

FIG. 2 is a conceptual diagram showing an example of a display device according to the present invention.

FIG. 3 is a conceptual diagram showing an example of a display device using the present invention as a sealant.

FIG. 4 is a conceptual diagram of an adhesive according to the present invention.

FIG. 5 is a conceptual diagram of a solid particle according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Sealant layer of liquid crystal display 12 Porous solid particles 21 and 22 Substrate 23 Liquid crystal layer 24 Sealant 31 and 32 Substrate 33 Liquid crystal layer 34 Sealant 35 Sealant 41 Main agent 42 Curing agent 51 Porous solid particles 52 Curing Amine acting as an agent

Claims (9)

[Claims] 1. A main agent comprising a substance having an epoxy group,
An adhesive consisting of a curing agent containing porous solid particles to which a component acting as a curing agent is provided or bonded to the inner surface of the pore,
A display device, wherein the display device is used for bonding substrates arranged opposite to each other. 2. The display device according to claim 1, wherein the display device uses a liquid crystal. 3. The display device according to claim 1, wherein the display device comprises a porous solid particle to which an amine, an acid anhydride, or an imidazole is added or bound as a component acting as a curing agent on the inner surface of the hole. The display device according to claim 1, wherein an adhesive containing an agent is used. 4. A main agent containing a substance having an epoxy group,
An adhesive consisting of a curing agent containing porous solid particles to which a component acting as a curing agent is provided or bonded to the inner surface of the pore,
A liquid crystal display device, which is used as a sealant for closing an injection hole after liquid crystal injection. 5. The display device according to claim 1, wherein the display device comprises a porous solid particle to which an amine, an acid anhydride, or an imidazole is added or bound as a component acting as a curing agent on the inner surface of the hole. The display device according to claim 4, wherein a sealing agent containing an agent is used. 6. A main agent containing a substance having an epoxy group,
An adhesive comprising a hardening agent containing porous solid particles to which a component acting as a hardening agent is applied or bonded to the inner surface of a hole. 7. The curing agent according to claim 1, wherein said adhesive contains porous solid particles to which at least one of amines, acid anhydrides and imidazoles is added or bound as a component acting as a curing agent on the inner surface of said pores. 7. An agent is used.
The adhesive as described. 8. A solid solid particle, characterized in that a component acting as a curing agent is added to or bonded to the inner surface of the pore. 9. The solid particles according to claim 8, wherein the solid particles are provided with any one of amines, acid anhydrides and imidazoles as a component acting as a curing agent on the inner surface of the pores. particle.