CN204576453U - Panel construction - Google Patents

Abstract

The utility model is applicable to the technical field of flat panel display, and provides a panel structure, including a base plate, a colored area is arranged on the base plate, a decorative layer is screen-printed on the colored area, and the decorative layer has irregular A shielding layer is formed on the decorative layer, the projection of the shielding layer on the substrate at least covers the first edge, the shielding layer has a regularity and prevents the first edge from being A visually perceived second edge, where the second edge is located on a side of the shielding layer corresponding to the first edge. The decorative layer is screen-printed on the substrate to ensure that the color of the colored area on the substrate is consistent and prevent the color temperature of the colored area from changing; a shielding layer is made on the decorative layer, and the shielding layer is covered on the decorative layer The irregular first edge smoothes the patterns made on the substrate.

Description

panel structure

technical field

The utility model belongs to the technical field of flat panel display, in particular to a panel structure.

Background technique

When it is necessary to color or make a pattern on the panel, it is generally necessary to print ink on the substrate to form the corresponding color and pattern. In order to ensure the consistency of the color of the pattern on the substrate and prevent the color temperature of the pattern from changing, the current method of making patterns on the substrate is mainly realized by screen printing. However, in screen printing, the ink flows through the grid on the screen and is printed on the substrate. However, the screen is composed of a dense grid made of silk threads, which leads to jagged patterns on the printed pattern, which greatly affects the appearance of the panel.

Utility model content

The purpose of the utility model is to provide a panel structure, aiming to solve the problem of sawtooth on the pattern printed on the screen of the existing substrate.

The utility model is realized in such a way that a panel structure includes a base plate, a colored area is arranged on the base plate, a decorative layer is screen-printed on the colored area, and the decorative layer has an irregular first edge A shielding layer is also formed on the decoration layer, the projection of the shielding layer on the substrate at least covers the first edge, and the shielding layer has a regular first edge that is not visually perceived. Two edges, the second edge is located on a side of the shielding layer corresponding to the first edge.

Further, the thickness of the shielding layer is smaller than the thickness of the decoration layer.

Further, the first edge is in a zigzag structure, and the second edge is in a straight line structure.

Further, the decoration layer and the shielding layer are made of the same color material or the same material.

Further, the colors of the decoration layer and the shielding layer are both white.

Further, the panel structure is in the shape of a rectangle, and the decoration layer and the shielding layer are both in the shape of a rectangular ring.

Alternatively, the panel structure is circular, and both the decoration layer and the shielding layer are circular.

Alternatively, the panel structure is in the shape of an ellipse, and both the decoration layer and the shielding layer are in the shape of an ellipse ring.

Further, a protective layer covering the substrate is also included, and the shielding layer is located between the substrate and the protective layer.

Further, a touch electrode layer for making a touch screen is also arranged on the substrate.

The utility model screen-prints the decorative layer on the substrate to ensure that the color of the colored area on the substrate is consistent and prevents the color temperature of the colored area from changing; a shielding layer is made on the decorative layer, and the shielding layer covers the The irregular first edge on the decorative layer smoothes the patterns made on the substrate.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of a panel structure provided by an embodiment of the present invention.

Fig. 2 is a flowchart of a method for manufacturing a panel structure provided by an embodiment of the present invention;

Fig. 3 is a kind of technological flow chart of the panel structure manufacturing method of Fig. 2;

Fig. 4 is a front view structural schematic diagram after screen printing on the substrate of Fig. 3;

FIG. 5 is a schematic front view of the structure of the substrate in FIG. 4 after development.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Fig. 1 and Fig. 2, a method for manufacturing a panel structure provided by an embodiment of the utility model includes the following steps;

Step P1) providing a substrate 10 having at least a colored area on the substrate 10;

Step P2) forming a decorative layer 11 by screen printing on the colored area, the decorative layer 11 having irregular first edges;

Step P3) forming a shielding layer 12 on the decoration layer 11, the projection of the shielding layer 12 on the substrate 10 at least covers the first edge, the shielding layer 12 has rules and makes the first A second edge whose edge is not visually perceived, the second edge is located on a side of the shielding layer 12 corresponding to the first edge.

The decorative layer 11 is screen-printed on the substrate 10 to ensure that the color of the colored area on the substrate 10 is consistent and prevent the color temperature from changing on the colored area; Covering the irregular first edge on the decoration layer 11 to make the patterns made on the substrate 10 smooth.

Specifically, the substrate 10 may be a plastic substrate 10 or a glass substrate 10 . The touch electrode layer lines can also be made on the substrate 10 so as to make a touch screen.

Further, the thickness of the shielding layer 12 is smaller than that of the decoration layer 11 . Since the decorative layer 11 is used on the substrate 10 to ensure the color consistency and color temperature change of the colored area of the substrate 10 . Moreover, when the fabrication method of the panel structure is complete, a conductive lead layer will be made at the position corresponding to the colored area of the panel structure during subsequent use, and the thickness of the shielding layer 12 is set to be smaller than the thickness of the decoration layer 11, so that the second A certain slope is formed on the edge to improve adhesion when the conductive lead layer is subsequently formed, and to reduce the probability of disconnection when the conductive lead layer is photolithographically formed to form a conductive lead pattern.

In this embodiment, the first edge of the decoration layer 11 is in the shape of sawtooth 111 , and the second edge of the shielding layer 12 is in the shape of a straight line. In other embodiments, the second edge can be designed into other shapes as required.

Further, the decoration layer 11 and the shielding layer 12 are made of the same color material or the same material, so as to ensure the color consistency on the colored area of the substrate 10 . Preferably, the colors of the decoration layer 11 and the shielding layer 12 are both white. When the panel structure is made by using the method of the above embodiment, the screen printing ink is white, and the photolithography ink is also white. Due to the white color on the substrate, it is very easy to cause the color temperature to change when the photolithography technology is used for coloring. On the substrate, the white decorative layer is screen-printed first, and then the white shielding layer is made by photolithography, so that not only the color temperature of the white on the substrate can be maintained, but also the pattern of the colored area can be smooth and jagged.

In this embodiment, the panel structure is in a rectangular shape, and the decoration layer 11 and the shielding layer 12 are both in a rectangular ring shape, so as to keep the shape of the panel structure consistent with the shape of the colored area. In other embodiments, the panel structure is circular, and both the decoration layer and the shielding layer are circular. In some other embodiments, the panel structure may be in the shape of an ellipse, and both the decoration layer and the shielding layer are in the shape of an ellipse ring.

Further, the manufacturing method of the panel structure further includes step P4) forming a protective layer 13 on the substrate 10 , and making the shielding layer 12 between the substrate 10 and the protective layer 13 . The protective layer 13 can serve to protect the substrate 10 and the shielding layer 12 . Protective layer 13 can be OC glue, transparent PET film, also can be glass plate, also can be transparent plastic plate. Using transparent PET film, it can be pasted and cut easily.

Further, the decoration layer 11 is made with screen printing ink, and the shielding layer 12 is made with photolithography ink. The shielding layer 12 is made by using photolithographic ink, and the processing is simple and convenient.

Further, the viscosity of the photoresist ink is smaller than that of the screen printing ink. In order to better fill the gaps between the serrations 111 of the decoration layer 11 with the photoresist ink, and make the pattern made on the colored area of the substrate 10 smoother.

Please refer to Fig. 3, Fig. 4 and Fig. 5, a specific process flow of the panel structure manufacturing method provided by the embodiment of the present invention is as follows;

S1) screen printing: prepare the substrate 10, the substrate 10 is provided with a colored area; make a screen, use screen printing ink, screen print the decorative layer 11 on the colored area of the substrate 10;

S2) Coating: coating photoresist ink on the substrate 10 so that the photoresist ink covers the decorative layer 11;

S3) Exposure: performing exposure processing on areas other than the colored area;

S4) Developing: developing the substrate 10 with a developing solution, removing the photoresist ink outside the colored area, and forming a shielding layer 12 on the colored area.

The decorative layer 11 is screen-printed with screen printing ink on the colored area on the substrate 10, so as to ensure that the color of the colored area on the substrate 10 is consistent and prevent the color temperature of the colored area from changing; , so that the photoresist ink is filled into the gap between the serrations 111 of the decorative layer 11 produced by screen printing, and then through exposure and development, the photoresist ink on the area other than the colored area on the substrate 10 is removed, thereby eliminating the silk The sawtooth 111 on the decoration layer 11 made by screen printing makes the pattern made on the colored area of the substrate 10 smooth.

In the step S1, specifically, please refer to FIG. 1 , and design an area to be colored on the substrate 10 as required, that is, design an area on the substrate 10 for making a pattern. Then select a screen, make a corresponding pattern on the screen, and then place the screen printing ink on the screen, so that the screen printing ink can be printed on the substrate 10 through the pattern on the screen, thereby forming a decorative layer 11 .

Further, in step S1, after the decoration layer 11 is screen-printed on the substrate 10, the decoration layer 11 needs to be dried before subsequent processing can be performed to prevent the decoration layer 11 from being affected by the subsequent processing. Generally speaking, the substrate 10 can be placed in a ventilated position to allow the decoration layer 11 to dry naturally. A further solution is to bake the substrate 10 , the substrate 10 can be placed in an oven, or the substrate 10 can be baked by light to dry the decoration layer 11 . That is, after the step S1, a step S1.1) drying is also included before the step S2: baking the substrate 10 to dry the decoration layer 11 . In this way, good adhesion of the decoration layer 11 on the substrate 10 is ensured, processing efficiency is improved, the color of the colored area of the substrate 10 is consistent, and the color temperature of the colored area is prevented from changing.

Then, a shielding layer 12 can be made on the decorative layer 11 of the substrate 10 by photolithography technology, and the shielding layer 12 can cover the colored area, so that the photoresist ink can be filled in the gaps between the serrations 111 of the screen printing ink, so that The pattern formed on the substrate 10 is smooth.

In the present invention, the photoresist ink is coated on the substrate 10, and then exposed and developed so that the photoresist ink forms a shielding layer 12 on the area to be colored on the substrate 10.

In the coating step S2 , the photoresist ink can be evenly sprayed on the substrate 10 and then left to stand, so that the photoresist ink can be fully filled in the gaps between the serrations 111 of the decoration layer 11 . Then rotate the substrate 10 to make the photoresist ink move to the periphery under the action of centrifugal force, that is, to throw off the excess photoresist ink, that is, the glue-spinning step; so that the photoresist ink on the substrate 10 is uniform and thinner. Generally, less than 1% of the photoresist ink that is sprayed remains on the substrate 10 . The lithographic ink that is thrown out can be recycled and reused. When rotating the substrate 10, the substrate 10 can be rotated on a flat tray, and the substrate 10 can be rotated together with the tray.

Further, after coating the photoresist ink on the substrate 10 , it is necessary to make the photoresist ink adhere well to the substrate 10 and the decoration layer 11 . The substrate 10 may be placed in a ventilated position to allow the photoresist ink to dry naturally to form a photoresist ink film. A further solution is to bake the substrate 10, and the substrate 10 may be placed in an oven to dry the photoresist ink. That is, after the step S2, the step S2.1) pre-baking is also included before the step S3: baking the substrate 10 to remove part of the solvent in the photolithography ink. In this way, good adhesion of the lithography ink on the substrate 10 is ensured, the processing efficiency is improved, and the subsequent exposure process is also convenient.

Since the solvent component in the liquid photoresist ink accounts for 65%-85%, although the liquid photoresist ink has become a solid film on the substrate 10 after the glue is thrown off, there is still 10%-30% solvent, which is easy to stain dust. By baking at a higher temperature, the solvent can be volatilized from the photolithography ink, and the solvent content is reduced to about 5%, thereby reducing the contamination of dust. At the same time, it can also reduce the film stress caused by high-speed rotation, thereby improving the adhesion of photolithography ink. During the pre-baking process, due to the volatilization of the solvent, the thickness of the lithographic ink will also be reduced, and the general reduction range is about 10%-20%.

In step S3, the exposure treatment is performed on the area other than the colored area on the substrate 10, that is, the exposure treatment is performed on the photoresist ink outside the colored area, so that the photosensitive agent in the engraved ink can undergo a photochemical reaction, so that the upper Photoresist ink on areas other than the colored areas can be dissolved in the developer for removal.

In order to avoid the exposure of the lithography ink on the colored area, a light-shielding film can be made so that the light-shielding film is blocked on the colored area. That is, before the step S3 and after the step S2, it also includes making a light-shielding film so that the light-shielding film covers the colored area. The light-shielding film can be affixed on the substrate 10 in alignment, so that after the exposure step, the light-shielding film needs to be removed, that is, after the step S3), the step of removing the light-shielding film is also included. Of course, in some other embodiments, the light-shielding film can also be aligned and pasted on the light source, so that removing the light source means removing the light-shielding film. In still some embodiments, a laser may be used to expose the area of the substrate 10 other than the colored area, so as to better control the exposure position.

Then, through the developing step S4, the exposed lithography ink on the substrate 10 is dissolved in the developer, so that the shielding layer 12 is only formed on the colored area of the substrate 10 to ensure that the pattern formed on the colored area of the substrate 10 is smooth smooth.

Further, after the development, the substrate 10 can also be subjected to high-temperature treatment to remove the remaining solvent in the shielding layer 12 and enhance the adhesion of the shielding layer 12 to the substrate 10; that is, after the step S4) step S4.1 is also included. ) Hardening: Baking the substrate 10 at a high temperature to remove the solvent in the photoresist ink and dry the photoresist ink. Furthermore, in the hardening step, the baking temperature can be increased to soften the shielding layer 12 and form a molten state similar to a glass body at high temperature. This will smooth the surface of the shielding layer 12 under the effect of surface tension, and reduce the defects (such as pinholes) in the shielding layer 12, thereby modifying the edge profile of the shielding layer 12, so that the colored area of the substrate 10 The resulting pattern is smoother.

Please refer to Fig. 1 , the embodiment of the utility model also discloses a panel structure, including a substrate 10, on which a colored area is arranged; a decorative layer 11 is screen-printed on the colored area, and the decorative layer 11 has irregular first On one edge, a shielding layer 12 is formed on the decoration layer 11, and the shielding layer 12 covers the colored area. The shielding layer 12 has a regular second edge, and the second edge is located on the side of the shielding layer 11 corresponding to the first edge of the decoration layer 11, so that the first edge cannot be detected visually.

Please also refer to Fig. 4, by screen printing the decorative layer 11 on the colored area on the substrate 10, thereby ensuring that the color of the colored area on the substrate 10 is consistent, preventing the color temperature on the colored area from changing; A shielding layer 12 is formed on the substrate 11, and the shielding layer 12 is made to cover the irregular first edge of the decoration layer 11, so that the pattern made on the substrate 10 is smooth. The decoration layer 11 can be made of screen printing ink through screen printing; the shielding layer 12 can be made of photolithography ink. That is, the panel structure of the present invention can be produced by using the above panel structure production method. In some other embodiments, the shielding layer 12 can also be obtained by laser or other methods.

Further, the thickness of the shielding layer 12 is smaller than that of the decoration layer 11 . Since the decorative layer 11 is used on the substrate 10 to ensure the color consistency and color temperature change of the colored area of the substrate 10 . Moreover, when the fabrication method of the panel structure is completed, a conductive lead layer will be made at the position corresponding to the colored area of the panel structure during subsequent use, and the thickness of the shielding layer 12 is set to be smaller than the thickness of the decoration layer 11, so that the second A certain slope is formed on the edge to improve adhesion when the conductive lead layer is subsequently formed, and to reduce the probability of disconnection when the conductive lead layer is photolithographically formed to form a conductive lead pattern.

In this embodiment, the first edge of the decoration layer 11 is in the shape of sawtooth 111 , and the second edge of the shielding layer 12 is in the shape of a straight line. In other embodiments, the second edge can be designed into other shapes as required.

Further, the decoration layer 11 and the shielding layer 12 are made of the same color material or the same material, so as to ensure the color consistency on the colored area of the substrate 10 . Preferably, the colors of the decoration layer 11 and the shielding layer 12 are both white. When the panel structure is made by using the method of the above embodiment, the screen printing ink is white, and the photolithography ink is also white. Due to the white color on the substrate, it is very easy to cause the color temperature to change when the photolithography technology is used for coloring. On the substrate, the white decorative layer is screen-printed first, and then the white shielding layer is made by photolithography, so that not only the color temperature of the white on the substrate can be maintained, but also the pattern of the colored area can be smooth and jagged.

In this embodiment, the panel structure is in a rectangular shape, and the decoration layer 11 and the shielding layer 12 are both in a rectangular ring shape, so as to keep the shape of the panel structure consistent with the shape of the colored area. In other embodiments, the panel structure is circular, and both the decoration layer and the shielding layer are circular. In some other embodiments, the panel structure may be in the shape of an ellipse, and both the decoration layer and the shielding layer are in the shape of an ellipse ring.

Further, the protective layer 13 may also be covered on the substrate 10 , and the shielding layer 12 is located between the substrate 10 and the protective layer 13 . The protective layer 13 can serve to protect the substrate 10 and the shielding layer 12 . Protective layer 13 can be OC glue, transparent PET film, also can be glass plate, also can be transparent plastic plate. Using transparent PET film, it can be pasted and cut easily.

Specifically, the substrate 10 may be a plastic substrate 10 or a glass substrate 10 . The touch electrode layer lines can also be made on the substrate 10 so as to make a touch screen.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A panel structure, comprising a substrate, the substrate is provided with a colored area, a decorative layer is screen-printed on the colored area, and the decorative layer has an irregular first edge, it is characterized in that the A shielding layer is also formed on the decoration layer, the projection of the shielding layer on the substrate at least covers the first edge, and the shielding layer has a regular second edge that prevents the first edge from being visually perceived , the second edge is located on a side of the shielding layer corresponding to the first edge. 2. The panel structure according to claim 1, wherein the thickness of the shielding layer is smaller than the thickness of the decoration layer. 3. The panel structure according to claim 1, wherein the first edge is in a zigzag structure, and the second edge is in a straight line structure. 4. The panel structure according to any one of claims 1-3, characterized in that, the decorative layer and the shielding layer are made of the same color material or the same material. 5. The panel structure according to claim 4, characterized in that, the color of the decoration layer and the shielding layer are both white. 6. The panel structure according to any one of claims 1-3, characterized in that, the panel structure is in the shape of a rectangle, and the decorative layer and the shielding layer are both in the shape of a rectangular ring. 7. The panel structure according to any one of claims 1-3, wherein the panel structure is circular, and the decorative layer and the shielding layer are both annular. 8. The panel structure according to any one of claims 1-3, characterized in that, the panel structure is in the shape of an ellipse, and the decorative layer and the shielding layer are both in the shape of an ellipse ring. 9. The panel structure according to any one of claims 1-3, further comprising a protective layer covering the substrate, and the shielding layer is located between the substrate and the protective layer. 10 . The panel structure according to claim 1 , wherein a touch electrode layer for making a touch screen is further arranged on the substrate. 11 .