TWI494583B - Structure of cover lens for display device and method of manufacturing thereof - Google Patents

Description

Protective mirror structure of display device and manufacturing method thereof

The present invention relates to a protective mirror structure of a display device and a method of manufacturing the same, and more particularly to a protective mirror structure having a hairline decorative pattern and a method of manufacturing the same.

With the rapid development of science and technology, the design of various forms of consumer electronic products, including palm-sized computers, handheld game consoles, and smart phones, has become more diversified, and the product life cycle has become shorter and shorter. In order to attract electronic consumers' attention, the common electronic products currently process a decorative layer with a silky texture on the surface of the protective mirror of the display to enhance the decorative and aesthetic of the electronic product. The so-called hairline pattern means that the human eye receives a plane reflected light from a bumpy line into the eye, or it can be said that the bright part of the reflected light and the difference in the dark part make the eye perceive the hairline texture.

However, the processing techniques for fabricating the decorative layer of the hairline texture can be roughly classified into three types: (1) after the mold is formed, the surface is polished (CAM), and the hairline is re-transferred onto the surface of the mold. (2) etching the surface of the mold with a chemical to produce a hairline on the surface of the mold; and (3) attaching the film of the printing ink to the mold and heating and transferring it to the product during the injection molding process (In-mould Decoration, IMD) ). The shortcomings of using IMD hairline processing technology for electronic products are as follows: (1) Most surface treatments are user contact surfaces, which are easy to scratch and wear; (2) IMD surface also has a layer of protective mold solution. However, compared with glass, it is easy to scratch and wear; and (3) most of the IMD finished products are in the form of a film, and it is necessary to apply another process to the electronic product (eg Such as the panel); and (4) the complicated process leads to high production costs.

Therefore, there is an urgent need to develop a protective mirror structure having a hairline decorative pattern and a manufacturing method thereof, so that the surface of the protective mirror exhibits a visual effect of hairline texture, thereby enhancing the decorative and value sense of the electronic product.

In view of the above needs, the inventors have developed a protective mirror structure of a display device and a method of manufacturing the same.

In view of the above problems of the prior art, the object of the present invention is to provide a protective mirror structure having a hairline decorative pattern and a manufacturing method thereof, so as to solve the problem that the hairline pattern on the protective mirror of the prior art is easily scratched. The shortcomings of wear and tear, and simplify the process of making hairline patterns on the protective mirror, thereby reducing production costs.

According to an object of the present invention, a protective mirror for a display device includes: a glass substrate; a transparent material layer formed on the glass substrate, the transparent material layer having a concave-convex surface; and a decorative layer formed on The transparent material layer having the uneven surface.

In the protective mirror structure of the present invention, the concave-convex surface is formed by performing an exposure and development process on the transparent material layer by using a photomask.

In the protective mirror structure of the present invention, the concave-convex surface is formed by performing a screen printing process on the transparent material layer using a screen.

In the protective mirror structure of the present invention, the material of the transparent material layer is a photoresist material and an ink.

In the protective mirror structure of the present invention, the decorative layer is made of a colored resin or a metallic material.

According to the object of the present invention, a method for manufacturing a protective mirror for a display device includes: forming a transparent material layer on a glass substrate; performing an exposure development process or a screen printing process on the transparent material layer to make the transparent The material layer forms a concave-convex surface; and forms a decorative layer having the concave surface The transparent surface is on the layer of transparent material.

In the manufacturing method of the protective mirror of the present invention, in the exposure and development process, the transparent material layer is developed by using photomasks having different line widths to form the uneven surface on the transparent material layer.

In the manufacturing method of the protective mirror of the present invention, the material of the transparent material layer is a photoresist material.

In the method of manufacturing the protective mirror of the present invention, in the screen printing process, the transparent material layer is printed using a screen having different line widths to form the uneven surface on the transparent material layer.

In the manufacturing method of the protective mirror of the present invention, the material of the transparent material layer is an ink.

In the manufacturing method of the protective mirror of the present invention, the method further comprises the steps of: forming an indium tin oxide plating film on the glass substrate to cover the glass substrate.

According to the above, the protective mirror structure of the display device according to the present invention and the manufacturing method thereof can have the following advantages: using a photomask or a screen to perform an exposure development process or a screen printing process for a transparent material layer on a glass substrate. The process of forming the concave-convex surface and forming the decorative layer on the transparent material layer having the concave-convex surface enables the protective mirror to have a hairline decorative pattern, which simplifies the manufacturing process of the hairline decorative pattern on the protective mirror in the prior art. A protective mirror with a silky decorative pattern also increases the likelihood that the user will purchase the above product.

The foregoing aspects and other aspects of the invention will be apparent from the description of the appended claims appended claims

1, 2‧‧‧ protective mirror

10, 20‧‧‧ glass substrate

11, 21‧‧‧ transparent material layer

12, 22‧‧‧ decorative layer

23‧‧‧Indium tin oxide coating

24‧‧‧flat layer

301-303‧‧‧Steps

401-405‧‧‧Steps

The first A is a schematic cross-sectional view of a first embodiment of a protective mirror of the display device of the present invention.

The first B diagram is the first embodiment of the protective mirror of the display device of the present invention. Top view.

The second drawing is a schematic cross-sectional view of a second embodiment of the protective mirror of the display device of the present invention.

Third Embodiment A flowchart of a method of manufacturing a protective mirror of a display device of the present invention will be described in accordance with a first embodiment of the present invention.

Fourth Embodiment A flow chart for explaining a method of manufacturing a protective mirror of a display device of the present invention will be described in accordance with a second embodiment of the present invention.

The technical features, contents, and advantages of the present invention, as well as the advantages thereof, can be understood by the present inventors, and the present invention will be described in detail with reference to the accompanying drawings. The subject matter is only for the purpose of illustration and description. It is not intended to be a true proportion and precise configuration after the implementation of the present invention. Therefore, the scope and configuration relationship of the attached drawings should not be interpreted or limited. First described.

Please refer to FIG. 1A, which is a schematic cross-sectional view of a protective mirror of a display device according to a first embodiment of the present invention, for explaining a basic implementation method of the protective mirror structure and a corresponding structure thereof according to an embodiment of the present invention. As shown, the protective mirror structure 1 in this embodiment includes a glass substrate 10, a transparent material layer 11, and a decorative layer 12. The transparent material layer 11 has an uneven surface and is formed on the glass substrate. The transparent material layer 11 forming the concave and convex surface may be formed by using a transparent material layer 11 having a photoresist material to provide a mask pair. The transparent material layer 11 having a photoresist material is exposed, and the exposed transparent material layer 11 is developed to remove unnecessary photoresist material, thereby forming a photoresist pattern having a concave-convex surface; or selecting an ink material. The transparent material layer 11 is subjected to a screen printing process on the transparent material layer 11 by using a screen, thereby forming a photoresist pattern having a concave-convex surface. Wherein the photoresist material has a light receiving The transparent material after the bond strengthening or bonding break can be, but not limited to, an acrylic resin photoresist, a modified acrylic resin photoresist, a polyamidene photoresist, a decane light. Resistive or fluorine-based photoresist; in actual implementation, the reticle or the design on the screen may have different line widths to allow the transparent material layer 11 to form a concave-convex surface by optical or printing characteristics, and, on the other hand, Regardless of whether the reticle or the screen design has the same or different line widths, in the actual implementation process of the embodiment of the present invention, because of the process variation characteristics (the embossing characteristics of the reticle/net version, the reticle/net The uneven surface may also be formed by a controlling factor such as a distance or inclination between the plate and the transparent material layer, a concentration of the developer/etching agent, and a transmittance of the transparent material layer. Preferably, in order to control the unevenness effect on the surface of the transparent material layer 11, the inventors of the present invention develop the transparent material layer by using photomasks having the same or different line widths, and forming the uneven surface by process variation characteristics, such that Even if the same mask or screen design is used, the surface of the transparent material layer will have irregular irregularities different from the mask or screen design due to the variation of each process, and can produce different hair. Silky visual effect. Then, the decorative layer 12 can be formed on the transparent material layer having the uneven surface by coating or sputtering, and thus, a protective mirror having a hairline decorative pattern can be formed, and the upper view is as follows. The first B picture is shown.

In some embodiments, the decorative layer 12 may be made of a colored resin or a metal material, such as copper (Cu), molybdenum (Mo), molybdenum (Mo) alloy, in order to produce different color/texture hairline patterns. One of opaque materials such as aluminum (Al), aluminum (Al) alloy, and chromium (Cr); however, in practice, it is not limited to this aspect. In addition, the traditional ink frame formed by the screen printing method (for example, Black Matrix, BM layer) can be replaced by a method of forming a decorative layer on a transparent material layer having a concave-convex surface, thereby increasing the value and decoration of the electronic product. Sex.

Please refer to the second drawing, which is a schematic cross-sectional view of a second embodiment of the protective mirror of the display device of the present invention for explaining the basic implementation method and corresponding structure of the protective mirror structure of the embodiment of the present invention. As shown in the figure, the protective mirror structure 2 in this embodiment comprises a glass substrate 20, a transparent material layer 21, a decorative layer 22, an indium tin oxide coating film 23, and an overcoat (OC). Layer 24. The difference between the first embodiment and the second embodiment is that the glass substrate 20 is preferably a sensing substrate having an indium tin oxide (ITO) 23 or an OGS. (One Glass Solution) Touch the protective mirror of the panel; however, in practice, it is not limited to this aspect. The indium tin oxide plating film 23 is formed on the decorative layer 22 to cover the decorative layer 22. In some preferred embodiments, in order to make the display module of the display device planarly conform to the protective mirror 2, the protective mirror structure 2 further includes an overcoat (OC) layer 24, which can be formed in the oxidation. The indium tin plating film 23 is covered on the indium tin plating film 23. In this way, a touch display device of a single glass solution (OGS) can be formed. Through the above configuration, in addition to the visual effect of the surface of the protective mirror 2, in other preferred embodiments, there are other covering layers on the decorative layer 22 (for example, indium tin oxide coating, flat layer). The life and aesthetics of the silk thread visual effect will be increased, and the decorative layer 22 will not be scratched and worn by the user in direct contact with the prior art, and the service life is increased. Moreover, the selection of the decorative layer material to form a decorative layer of different colors on the transparent material layer having the uneven surface can also increase the visual effect and variability of the hairline.

Although the foregoing description of the protective lens of the display device of the present invention has been described in the foregoing description of the protective lens of the display device of the present invention, for the sake of clarity, the following detailed description of the flowchart is further illustrated. .

Referring to the third drawing, a flow chart of a method of manufacturing a protective mirror for a display device of the present invention will be described in accordance with a first embodiment of the present invention. In the present embodiment, the present invention discloses a manufacturing method for forming a decorative pattern having a hairline on a glass substrate. The manufacturing method includes the following steps: Step 301: Form a transparent material layer on a glass substrate, wherein the material of the transparent material layer comprises at least a photoresist material or an ink, and the glass substrate may be formed with an indium tin oxide coating film ( The sensing substrate of the Indium tin oxide (ITO) or the OGS (One Glass Solution) touch panel; however, the actual implementation is not limited to this aspect. Then proceeding to step 302: for example, but not limited to, performing an exposure and development process on the transparent material layer by using a photomask or a screen having the same or different line widths A process or a screen printing process in which the transparent material layer forms a concave-convex surface. It should be noted that, if the exposure and development process is performed, the material of the transparent material layer is a photoresist material; if the screen printing process is performed, the material of the transparent material layer is ink. Finally, step 303 is performed: for example, but not limited to, forming a decorative layer on the transparent material layer having the uneven surface by coating or sputtering, thereby forming a protective mirror having a hairline decorative pattern, wherein The decorative layer is made of a colored resin or a metal material (for example, one of opaque materials such as copper (Cu), molybdenum (Mo), molybdenum (Mo) alloy, aluminum (Al), aluminum (Al) alloy, and chromium (Cr)), To create a different color / texture of the hairline. In order to form an irregular hairline effect, the inventors of the present invention utilize masks or screens having the same or different line widths or utilize process variation characteristics (concave characteristics of the mask/web version, mask/net The uneven surface is formed by a controlling factor such as a distance or inclination between the plate and the transparent material layer, a concentration of the developer/etching agent, and a transmittance of the transparent material layer. Referring to the fourth figure, a flow chart of a method of manufacturing a protective mirror for a display device of the present invention will be described in accordance with a second embodiment of the present invention. Compared with the first embodiment, the difference is that the manufacturing method of the second embodiment includes, in addition to the first three steps of the first embodiment, step 404: forming an indium tin oxide coating on the decorative layer to cover the The decorative layer is used to achieve the purpose of touch. Then, step 405 is performed to form a flat layer on the indium tin oxide coating film to cover the indium tin oxide coating film, so as to facilitate bonding of the protection mirror and the display module of the display device to complete assembly of the display device. In this way, through the above-described multi-layered arrangement, the problem that the uneven surface for presenting the hairline effect is scratched and worn can be avoided, and the cost of production can be reduced.

The detailed implementation of each of the above steps has been described in detail in the foregoing description of the protective mirror structure having the hairline decorative pattern, and will not be described herein.

In summary, when the protective mirror of the above invention is applied to the OGS touch panel, since the OGS touch panel is a glass-based technical solution, the pattern with the hairline decoration is formed on the OGS touch panel. The inner surface, so that the user can see on the OGS touch panel The visual effect of the hairline, but when the user touches the outer surface of the OGS touch panel with the hairline decorative pattern, the decorative layer cannot be directly touched. Similarly, it can also be applied to a general glass substrate to achieve the same effect. In summary, in addition to the use of the protective mirror with a hairline decorative pattern in order to increase the value of the product, it is also possible to avoid the direct application of the hairline decorative pattern on the outer surface of the protective mirror in the prior art. The shortcomings of scratching, thereby increasing the possibility of users purchasing the above products.

Heretofore, a preferred embodiment of the protective mirror structure of the display device of the present invention and a method of manufacturing the same has been described by the above description and the drawings. All of the features disclosed in this specification may be combined with other methods, and each of the features disclosed in the specification may be selectively replaced with the same, equal or similar purpose features, and thus, in addition to the particularly salient features All of the features disclosed in this specification are only one example of equal or similar features. After the description of the preferred embodiment of the present invention, it should be understood by those skilled in the art that the present invention is a novel, progressive, and practical invention, and has profound development value. The present invention has been modified by those skilled in the art and is intended to be modified as described in the appended claims.

1‧‧‧protective mirror

10‧‧‧ glass substrate

11‧‧‧Transparent material layer

12‧‧‧Decorative layer

Claims (12)

A protective mirror for a display device, comprising: a glass substrate; a transparent material layer formed on the glass substrate, the transparent material layer having a concave-convex surface; and a decorative layer formed on the transparent surface having the concave and convex surface On the material layer. The protective lens according to claim 1, wherein the concave and convex surface is formed by performing an exposure and development process on the transparent material layer by using a photomask. The protective mirror according to claim 1, wherein the concave-convex surface is formed by performing a screen printing process on the transparent material layer by using a screen. The protective mirror according to claim 1, wherein the transparent material layer is made of a photoresist material and an ink. The protective mirror according to claim 1, wherein the decorative layer is made of a colored resin or a metal material. A manufacturing method of a protective mirror for a display device, comprising: forming a transparent material layer on a glass substrate; performing an exposure development process or a screen printing process on the transparent material layer to form a concave-convex surface for the transparent material layer; A decorative layer is formed on the layer of transparent material having the textured surface. The manufacturing method of the protective mirror according to claim 6, wherein in the exposure and development process, the transparent material layer is developed by using a mask having different line widths to form the unevenness on the transparent material layer. surface. The method for manufacturing a protective mirror according to claim 6, wherein the material of the transparent material layer is a photoresist material. The method for manufacturing a protective mirror according to claim 6, wherein in the screen printing process, the transparent material layer is printed by using a screen having different line widths to form on the transparent material layer. The concave and convex surface. The method for manufacturing a protective mirror according to claim 6, wherein the material of the transparent material layer is an ink. The method for manufacturing a protective mirror according to claim 6, further comprising the step of forming an indium tin oxide coating on the glass substrate to cover the glass substrate. A protective mirror for a display device, comprising: a glass substrate; a transparent material layer formed on the glass substrate, the transparent material layer having a concave-convex surface; and a decorative layer formed on the transparent material having the concave-convex surface And a sensing layer formed between the decorative layer and a flat layer.