Boss cover plate light leakage prevention side face silk screen plate assembly and display screen

Abstract

The utility model relates to a boss cover plate light leakage prevention side face silk screen printing plate assembly and a display screen, the screen printing plate assembly comprises a screen printing plate, the screen printing plate is provided with an exposure area, the exposure area is annular, the screen printing plate is provided with a groove, the groove is provided with an inward concave area and an outward convex area on the two sides of the screen printing plate respectively, and the inward concave area and the outward convex area are arranged on the two sides of the screen printing plate respectively. The lower edge line of the inner side wall of the inwards-concave area coincides with the edge line of the annular inner ring, and the upper edge line of the inner side wall coincides with the edge line of the annular outer ring. According to the utility model, ink screen printing on the side surface of the display screen cover plate boss can be realized, and the problem of light leakage on the side surface of the display screen cover plate boss under the condition that various cover plates and a casing are assembled is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of silk screen printing, in particular to a side silk screen printing assembly for preventing light leakage of a boss cover plate. Background Art

[0002] like Figure 1 As shown, Figure 1 (a) and (b) are two situations of assembling the display screen cover plate 2 and the housing 1 in the prior art. In the first situation, Figure 1 As shown in (a), the boss cover plate of the display screen is a cover plate 2 having a boss 21 of relatively thick thickness (for example, 3 mm) on the back, and the back of the boss 21 is silk-screened with light-shielding ink. The casing 1 is provided with a hollow portion that cooperates with the boss 21, and the thickness of the casing 1 is relatively thin, for example, 1 mm. After the cover plate 2 is assembled with the casing 1 through the boss 21, the thickness of the side of the boss between the two is about 2 mm. Since there is no silk-screened ink on the side of the boss 21, it only relies on the ink on the back of the boss 21 to block light. In this way, when the boss 21 is viewed from the side of the cover plate 2, light will enter from the 2 mm thick side, causing light leakage, resulting in poor visual effects and affecting the display effect. In the second case, the boss is relatively thin, for example, the thickness of the boss and the thickness of the casing are both 1 mm, that is, after the cover plate 2 is assembled with the casing 1, the boss can be placed in the hollow portion of the casing 1, so the side of the boss cannot be seen from the side. Figure 1 In this case, if the housing 1 needs to use a transparent material, then the light enters from the side panel of the housing 1 and then shines on the side of the boss, and there will still be a problem of light leakage. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a side screen printing assembly for preventing light leakage of a boss cover plate, which solves the problem of light leakage on the side of the boss of a display screen cover plate.

[0004] The technical solution adopted by the utility model is as follows:

[0005] The utility model provides a side screen printing screen component for preventing light leakage of a boss cover plate, comprising a screen, an exposure area is arranged on the screen, the exposure area is annular, a groove is arranged on the screen, the groove forms an inner concave area and an outer convex area on both sides of the screen, the lower edge line of the inner side wall of the inner concave area coincides with the inner circle edge line of the annular ring, and the upper edge line of the inner side wall coincides with the outer circle edge line of the annular ring.

[0006] Further technical solutions are:

[0007] The shape of the inner concave area of ​​the groove matches the boss of the cover plate, so that the boss can be stuck in the inner concave area of ​​the groove, and the side surface of the boss fits with the inner side wall.

[0008] The depth of the groove is not less than the thickness of the boss.

[0009] The screen printing plate assembly further includes a squeegee, the structure of the squeegee includes a body, at least one blade plate is provided on the body, and the inner side surface of the blade plate is the working surface;

[0010] The height of the outer side wall of the convex region is not greater than the height of the inner side surface of the blade plate, and the positions of the outer side wall and the inner side wall correspond to each other inside and outside.

[0011] One blade plate is provided at each end of the body, and each blade plate is movably matched with the body to adjust the distance between the inner side surfaces of the two blade plates.

[0012] A guide rail is provided on the body, a slider slidably matched with the guide rail is provided on the blade plate, and a locking member is provided on the slider to loosen or lock the slider and the guide rail.

[0013] The blade plate is made of silica gel material.

[0014] The groove is formed by stamping after the screen printing plate is exposed.

[0015] The screen printing plate uses a 500-mesh stainless steel screen fabric.

[0016] The present utility model further provides a display screen, including a cover plate made by the convex platform cover plate anti-light leakage side screen printing plate assembly described above, and ink is screen printed on the convex platform side surface of the cover plate.

[0017] The beneficial effects of the present utility model are as follows:

[0018] The screen printing plate assembly of the present utility model can realize screen printing of ink on the side surface of the convex platform, and solves the problem of light leakage on the side surface of the convex platform of the display screen cover plate in various assembly situations of the cover plate and the casing.

[0019] The screen printing plate and the squeegee of the present utility model are convenient to manufacture and use. The blade plate of the squeegee is movably assembled with the body, the distance of the squeegee is adjustable, and the screen printing of the entire side surface of the convex platform can be completed by two screen printing operations in the horizontal and vertical directions, with convenient operation and high efficiency.

[0020] Other features and advantages of the present utility model will be described in the subsequent description, or will be understood by implementing the present utility model. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of an existing display screen cover plate and a casing after assembly.

[0022] Figure 2 It is a top view of the screen printing plate of the embodiment of the present utility model.

[0023] Figure 3 For Figure 2 View A in

[0024] Figure 4 This is a schematic diagram of the cooperation structure between the screen plate of the present utility model and the cover plate to be screen-printed in the working state.

[0025] Figure 5 This is a schematic diagram of the doctor blade structure of an embodiment of the present utility model.

[0026] Figure 6 This is a schematic diagram of the cooperation structure between the screen plate assembly of an embodiment of the present utility model and the cover plate to be screen-printed in the working state.

[0027] In the figure: 1, the machine shell; 2, the cover plate; 3, the screen plate; 4, the doctor blade; 21, the boss; 31, the groove; 311, the inner side wall; 41, the body; 42, the blade plate; 312, the outer side wall; 421, the inner side surface. Specific embodiments

[0028] The following describes the specific embodiments of the present utility model with reference to the accompanying drawings.

[0029] As Figure 2 , Figure 3 shown, the light leakage prevention side screen printing screen plate assembly of the boss cover plate in this embodiment includes a screen plate 3. An exposure area is provided on the screen plate 3, and the exposure area is annular. A groove 31 is provided on the screen plate 3. The groove 31 forms an inner concave area and an outer convex area on both sides of the screen plate 3 respectively. The lower edge line of the inner side wall 311 of the inner concave area coincides with the inner circle edge line of the ring, and the upper edge line of the inner side wall 311 coincides with the outer circle edge line of the ring.

[0030] As Figure 4 shown, the shape of the inner concave area of the groove 31 matches the boss 21 of the cover plate 2, so that the boss 21 can be stuck into the inner concave area of the groove 31, and the side surface of the boss 21 is in contact with the inner side wall 311.

[0031] The depth of the groove 31 is not less than the thickness of the boss 21.

[0032] As a specific embodiment, a 500-mesh stainless steel screen mesh is used. First, the required pattern, that is, the ring corresponding to the circumference of the boss side, is exposed on the screen mesh; then a groove is punched at the corresponding position of the screen mesh to match the boss of the cover plate. Because only the circumference of the boss side gets inked during exposure and other positions of the screen mesh do not get inked, side screen printing of the boss can be achieved.

[0033] As Figure 5 shown, the screen plate assembly of this embodiment further includes a doctor blade 4. The structure of the doctor blade 4 includes a body 41, and at least one blade plate 42 is provided on the body 41. The inner side surface 421 of the blade plate 42 is the working surface;

[0034] The height of the outer side wall 312 of the outer convex area is not greater than the height of the inner side surface 421 of the blade plate 42, and the positions of the outer side wall 312 and the inner side wall 311 correspond to each other inside and outside.

[0035] As a preferred embodiment, a knife plate 42 is provided at each end of the body 41, and each knife plate 42 is movably engaged with the body 41 to adjust the distance between the inner sides 421 of the two knife plates 42.

[0036] As a specific implementation manner, a guide rail is provided on the body 41, a slider slidably engaged with the guide rail is provided on the knife plate 42, and a locking member is provided on the slider to loosen or lock the slider and the guide rail.

[0037] As Figure 6 shown, after adjusting the distance between the two scraping blades 4, the body 41 is scraped and printed twice in sequence along the horizontal direction (the width direction of the boss 21) and the vertical direction (the length direction of the boss 21). When scraping and printing horizontally, the inner sides 421 of the two knife plates 42 are respectively attached to the outer side walls 312 of the outer convex regions of the grooves 31 on both sides in the width direction of the corresponding boss. When scraping and printing vertically, the inner sides 421 of the two knife plates 42 are respectively attached to the outer side walls 312 of the outer convex regions of the grooves 31 on both sides in the length direction of the corresponding boss, so that the ink penetrates from the outer side wall 312 to the inner side wall 311 and then is screen-printed on the side surface of the boss. It can be understood that after horizontal scraping and printing, it is necessary to first adjust the distance between the two scraping blades 4 and then perform vertical scraping and printing.

[0038] Among them, the knife plate 42 can specifically adopt a silicone material.

[0039] This embodiment also provides a display screen, including a cover plate, and the cover plate is made by the above-mentioned boss cover plate anti-light leakage side screen printing plate assembly. Ink is screen-printed on the side surface of the boss of the cover plate, that is, on the basis of screen-printing ink on the back surface of the boss, ink is further screen-printed on the side surface of the boss.

[0040] The screen printing plate assembly of the present utility model can print ink on the side surface of the boss, and fundamentally solves the problem of light leakage of the display screen.

[0041] Those of ordinary skill in the art can understand that the above description is only a preferred embodiment of the present utility model and is not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A side screen printing screen assembly for preventing light leakage of a boss cover plate, characterized in that: The invention comprises a screen (3), wherein an exposure area is provided on the screen (3), wherein the exposure area is in a ring shape, wherein a groove (31) is provided on the screen (3), wherein the groove (31) forms an inner concave area and an outer convex area on both sides of the screen (3), respectively, wherein the lower edge line of the inner side wall (311) of the inner concave area coincides with the inner edge line of the ring shape, and the upper edge line of the inner side wall (311) coincides with the outer edge line of the ring shape.

2. The side screen printing screen assembly for preventing light leakage of boss cover plate according to claim 1, characterized in that: The shape of the inner concave area of ​​the groove (31) matches the boss (21) of the cover plate (2), so that the boss (21) can be inserted into the inner concave area of ​​the groove (31), and the side surface of the boss (21) fits the inner side wall (311).

3. The side screen printing screen assembly for preventing light leakage of boss cover plate according to claim 2, characterized in that: The depth of the groove (31) is not less than the thickness of the boss (21).

4. The side screen printing screen assembly for preventing light leakage of boss cover plate according to claim 1, characterized in that: The screen assembly further comprises a scraper (4), the structure of the scraper (4) comprising a body (41), at least one blade (42) being provided on the body (41), and the inner side surface (421) of the blade (42) being a working surface; The height of the outer side wall (312) of the outer convex area is not greater than the height of the inner side surface (421) of the knife plate (42), and the positions of the outer side wall (312) and the inner side wall (311) correspond inside and outside.

5. The side screen printing screen assembly for preventing light leakage of boss cover plate according to claim 4, characterized in that: A knife plate (42) is provided at each end of the body (41), and each knife plate (42) is movably matched with the body (41) to adjust the distance between the inner side surfaces (421) of the two knife plates (42).

6. The side screen printing screen assembly for preventing light leakage of boss cover plate according to claim 5, characterized in that: The body (41) is provided with a guide rail, the knife plate (42) is provided with a slider that slidably cooperates with the guide rail, and the slider is provided with a locking piece to loosen or lock the slider and the guide rail.

7. The side screen printing screen assembly for preventing light leakage of boss cover plate according to claim 5, characterized in that: The knife plate (42) is made of silicone.

8. The side screen printing screen assembly for preventing light leakage of boss cover plate according to claim 1, characterized in that: The groove (31) is formed by punching the screen (3) after exposure.

9. The side screen printing screen assembly for preventing light leakage of boss cover plate according to claim 1, characterized in that: The screen plate (3) is made of 500-mesh stainless steel mesh.

10. A display screen, characterized in that: It comprises a cover plate (2) made by using the boss cover plate light leakage prevention side screen printing screen assembly according to any one of claims 1 to 9, and ink is screen printed on the side of the boss (21) of the cover plate (2).

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