CN105676342A

CN105676342A - Glass light guide plate and manufacturing method thereof

Info

Publication number: CN105676342A
Application number: CN201610182521.2A
Authority: CN
Inventors: 王海宏; 曹焜; 延威
Original assignee: Nanjing CEC Panda LCD Technology Co Ltd
Current assignee: Nanjing CEC Panda LCD Technology Co Ltd
Priority date: 2016-03-28
Filing date: 2016-03-28
Publication date: 2016-06-15

Abstract

The invention discloses a glass light guide plate manufacturing method. The method comprises the following steps: the glass light guide plate is coated with a photoresist; a mask plate with a glass light guide plate screen dot pattern is manufactured; the photoresist is exposed through the mask plate; the photoresist is developed; hydrofluoric acid is sprayed on the surface of the photoresist to form the screen dots of the glass light guide plate; and the remaining photoresist is stripped and the glass light guide plate is cleaned. The glass light guide plate manufactured in the manufacturing method of the invention has the advantages of no color difference, no falling, good screen dot effects, no cracks, good glass strength, no brittle fracture, good light guide performance, and industrial batch production.

Description

A kind of glass light guide plate and preparation method thereof

Technical field

The invention belongs to liquid crystal display device field, particularly relate to a kind of glass light guide plate and manufacture method thereof.

Background technology

In a liquid crystal display, the line source that light guide plate is mainly used in sending light source converts area source to, so that the brightness uniformity of display picture. The material of traditional light guide plate has polymethyl methacrylate (PMMA), Merlon (PC) etc., recently the light guide plate that a kind of glass substrate makes is released, the light guide plate intensity comparing tradition material is higher, and what can make on large-sized tv product that module becomes is thinner. At present, the making of glass light guide plate site has two ways: a kind of method for printing net-point, and its advantage is to produce in batches, and shortcoming is: 1, because ink and glass chemistry character are variant, be therefore easily generated color difference; 2, owing to the adhesive force of ink is poor, therefore easily come off or be partially stripped; 3, for extra small site, such as the site of below 0.1mm, its production is poor. Another kind makes site for laser dotting, but can form blind crack around site, due to glass easily embrittlement itself, so the intensity of glass can be affected, is unfavorable for the quality of product.

Summary of the invention

In order to overcome problem of the prior art, the present invention proposes the manufacture method of a kind of glass light guide plate, comprises the steps: the first step, and glass light guide plate is coated with photoresist. Specific as follows: to be cleaned by glass light guide plate, at one layer of active group of surface-coated of glass light guide plate, active group can be hmds, at active group surface-coated one layer photoetching glue; The glass light guide plate being coated with photoresist is dried process and end face cleans. Second step, makes the mask plate with glass light guide plate site figure, is exposed through described mask plate photolithography glue with ultraviolet. 3rd step, develops to photoresist with developer solution. 4th step, at photoresist surface sprinkling Fluohydric acid., the mass percent of described Fluohydric acid. is 5%-20%, Fluohydric acid. and glass light guide plate generation chemical reaction not covered by photoresist, form site the 5th step of glass light guide plate, peel off remaining photoresist, and glass light guide plate is carried out.

The present invention also proposes the manufacture method of another kind of glass light guide plate, comprises the steps: by silk screen print method at glass light guide plate surface printing glass light guide plate site figure; Spray Fluohydric acid., make the glass light guide plate and the Fluohydric acid. generation chemical reaction that are not covered by ink, form the site of glass light guide plate; Clean ink.

Beneficial effect: the glass light guide plate no color differnece that prepared by manufacture method of the present invention, nothing comes off, site effect is good, flawless, strength of glass are good, not easily embrittlement, light conductivity are good, can industrial mass manufacture.

Accompanying drawing explanation

Fig. 1 is glass light guide plate schematic diagram;

Fig. 2 is coat activated base schematic diagram on glass light guide plate surface;

Fig. 3 is at active group surface coating photoresist schematic diagram;

Fig. 4 is the schematic diagram that the glass light guide plate scribbling photoresist is dried;

Fig. 5 is the schematic diagram that dried photoresist is carried out;

Fig. 6 is the schematic diagram to the glass light guide plate preliminary drying shown in Fig. 5;

Photoresist is exposed schematic diagram for passing through mask plate with ultraviolet by Fig. 7;

Fig. 8 is the schematic diagram to the photoresist developing after exposure;

Fig. 9 is the glass light guide plate schematic diagram with site;

Figure 10 is the schematic diagram at glass light guide plate surface printing glass light guide plate site figure.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, it is further elucidated with the present invention, it should be understood that these embodiments are merely to illustrate the present invention rather than restriction the scope of the present invention, after having read the present invention, the amendment of the various equivalent form of values of the present invention is all fallen within the application claims limited range by those skilled in the art.

The present invention provides the manufacture method of a kind of glass light guide plate, comprises the steps: the first step, the coating of photoresist. As it is shown in figure 1, glass light guide plate 100 is cleaned, it is thermally dried, it is prevented that surface has moisture; Then at one layer of active group 101 of surface-coated of glass light guide plate 100, such as hmds (HMDS), to increase the adherence of photoresist and glass light guide plate, as shown in Figure 2; Then at active group 101 surface-coated one layer photoetching glue 102, as shown in Figure 3; It is coated with the glass light guide plate 120 of photoresist to be placed in hothouse 200 to carry out drying under reduced pressure process, make the solvent in photoresist 102 to evaporate, as shown in Figure 4; With scan nozzle 300, photoresist 102 surface is carried out end face cleaning, as shown in Figure 5; The glass substrate 120 being coated with photoresist is placed on the plummer 401 of preliminary drying room 400 and carries out preliminary drying, with the most of solvent removed in photoresist 102 and make the exposure characteristics of photoresist 102 fix, as shown in Figure 6. Second step, as it is shown in fig. 7, make the mask plate 500 with glass light guide plate site figure, mask plate 500 and the glass light guide plate 120 scribbling photoresist carry out para-position, are exposed processing through described mask plate 500 photolithography glue 102 with ultraviolet. 3rd step, as shown in Figure 8, develops to photoresist 102 with alkaline-based developer, removes the photoresist being emitted through by ultraviolet lighting, leaves the photoresist do not crossed by ultraviolet radiation. 4th step, at photoresist surface sprinkling Fluohydric acid., the mass percent of Fluohydric acid. is 5%-20%, Fluohydric acid. and glass light guide plate generation chemical reaction not covered by photoresist, forms the site of glass light guide plate. 5th step, peels off remaining photoresist, and glass light guide plate is carried out, and the glass light guide plate 100 ' with site has manufactured, as shown in Figure 9.

The present invention also proposes the manufacture method of another kind of glass light guide plate, comprises the steps: by silk screen print method at glass light guide plate surface printing glass light guide plate site figure, as shown in Figure 10; It is 5%-20% Fluohydric acid. in glass light guide plate surface sprinkling mass percent, makes the glass light guide plate and the Fluohydric acid. generation chemical reaction that are not covered by ink, form the site of glass light guide plate; Clean ink.

Utilize glass light guide plate no color differnece that said method prepares, nothing comes off, site effect is good, flawless, strength of glass are good, not easily embrittlement, light conductivity are good, can industrial mass manufacture.

Claims

1. the manufacture method of a glass light guide plate, it is characterised in that: comprise the steps:

The first step, glass light guide plate is coated with photoresist;

Second step, makes the mask plate with glass light guide plate site figure, through described mask plate, photoresist is exposed;

3rd step, develops to photoresist;

4th step, at photoresist surface sprinkling Fluohydric acid., forms the site of glass light guide plate;

5th step, peels off remaining photoresist, and glass light guide plate is carried out.

2. the manufacture method of a kind of glass light guide plate according to claim 1, it is characterised in that: the content of the described first step is: cleaned by glass light guide plate, at one layer of active group of surface-coated of glass light guide plate,

At active group surface-coated one layer photoetching glue.

3. the manufacture method of a kind of glass light guide plate according to claim 2, it is characterised in that: described active group is hmds.

4. the manufacture method of a kind of glass light guide plate according to claim 2, it is characterised in that: the glass light guide plate being coated with photoresist is dried process and end face cleaning.

5. the manufacture method of a kind of glass light guide plate according to claim 1, it is characterised in that: it is exposed through described mask plate photolithography glue with ultraviolet.

6. the manufacture method of a kind of glass light guide plate according to claim 1, it is characterised in that: Fluohydric acid. forms site with glass light guide plate generation chemical reaction not covered by photoresist.

7. the manufacture method of a kind of glass light guide plate according to claim 6, it is characterised in that: the mass percent of described Fluohydric acid. is 5%-20%.

8. the manufacture method of a glass light guide plate, it is characterised in that: comprise the steps:

The first step, by silk screen print method at glass light guide plate surface printing glass light guide plate site figure;

Second step, sprays Fluohydric acid., makes the glass light guide plate and the Fluohydric acid. generation chemical reaction that are not covered by ink, forms the site of glass light guide plate;

3rd step, cleans ink.

9. the manufacture method of a kind of glass light guide plate according to claim 8, it is characterised in that: the mass percent of described Fluohydric acid. is 5%-20%.