CN110706588A - Through-hole screen seals glue structure - Google Patents
Through-hole screen seals glue structure Download PDFInfo
- Publication number
- CN110706588A CN110706588A CN201911020841.8A CN201911020841A CN110706588A CN 110706588 A CN110706588 A CN 110706588A CN 201911020841 A CN201911020841 A CN 201911020841A CN 110706588 A CN110706588 A CN 110706588A
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- China
- Prior art keywords
- screen
- silk
- hole
- mark
- backlight module
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Abstract
The invention relates to a through hole screen sealing structure, which is sealed by a dispensing device and is characterized in that the structure comprises: the touch screen outer cover is provided with a silk-screen mark; the backlight module is provided with a retaining wall; and coating sealing glue at the silk-screen mark position by the dispensing equipment, and then assembling the retaining wall of the backlight module to the sealing glue.
Description
Technical Field
The invention relates to the technical field of structural processing of electronic equipment, in particular to a sealing compound structure.
Background
With the development of small-size screens, in order to meet the demand of vast consumers, especially female consumers, on liking self-timer, the front camera technology will be the mainstream of the future market. The current market mainly uses this technique to be bang screen, water droplet screen, beautiful people point screen etc. and its district area of making a video recording influences great to whole effective display area. Compared with the former, the display area ratio of the in-plane opening screen can be improved to more than 95%, and the mobile phone display tends to be a comprehensive screen by matching with extremely narrow frames, COFs and other technologies, so that the in-plane blind hole display screen becomes a hot spot direction for mobile phone display in the next two years.
The screen of trompil in face can be divided into blind hole screen and through-hole screen according to whether make the cutting trompil of making a video recording district glass. Most of products on the market at present are blind hole screens, but a great deal of obstacles still exist for improving the yield, the yield and the reliability due to the problems of blind hole foreign matters, filled bubbles, interference fringes and the like, and the production technology needs to be improved urgently. In contrast, the through-hole screen can avoid the above problems due to its design characteristics, and the production difficulty is relatively low. The main difficulties existing at present are 1, the cost and efficiency of cutting and tapping are optimized, and 2, how to effectively shield the tapping position.
At present, the camera at the through hole is very sensitive to light, the light emitted from the through hole side of the touch panel 130, the opening of the polarizer 120, and the opening of the backlight module 140 will seriously affect the image capturing effect (as shown in fig. 1), and the black hot melt adhesive needs to be coated to shield the light transmitted from the through hole, in order to meet the requirement of shielding, the hot melt adhesive needs to cover the gap between the backlight module 140 and the lower polarizer 122, the through hole side of the touch panel 130, the gap between the upper polarizer 121 and the outer cover 110 of the touch screen, and other regions, in the actual manufacturing process, the following problems can occur:
1. the coverage area of the hot melt adhesive is large, the adhesive output of a machine table needs to be increased, the adhesive overflow amount is more serious due to the influence of the flowability of the adhesive, the actual adhesive width is larger, the inner diameter of a hole cannot meet the size of a camera hole, the round hole is not round easily, and the appearance effect is influenced;
2. the consumption of the hot melt adhesive is large, and the single-chip processing time and the cost are increased;
3. considering the effect of assembly tolerance, the actual gap between the backlight and the backlight may be larger, and it is difficult for the glue to completely fill the gap, resulting in light leakage.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention is directed to solving the above-mentioned problems, and by optimizing the design of the window cover and the backlight module of the touch panel, the difficulty of the molding process is reduced, so as to meet the requirements of shading and appearance at the through hole.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the through hole screen sealing structure provided by the invention, the sealing is performed through a dispensing device, and the structure is characterized by comprising the following components: the touch screen outer cover is provided with a silk-screen mark; the backlight module is provided with a retaining wall; and coating sealing glue at the silk-screen mark position by the dispensing equipment, and then assembling the retaining wall of the backlight module to the sealing glue.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
In an embodiment of the invention, the silk-screen mark is a black ink silk-screen mark, and the silk-screen mark is a circular hole silk-screen mark.
In an embodiment of the invention, a polarizer and an embedded touch panel are further included between the touch screen cover and the backlight module.
In an embodiment of the invention, the silk-screen mark is an inner through hole on one surface, and the silk-screen mark is used as an inner edge of the display area, so that the appearance of the inner through hole is in a standard circular shape.
In an embodiment of the invention, the dispensing equipment is positioned according to the silk-screen mark of the outer cover of the touch screen.
In an embodiment of the invention, the retaining wall of the backlight module is aligned with the silk-screen mark and then assembled.
The invention provides a through-hole screen sealing structure which is sealed by a dispensing device and is characterized by comprising a touch screen outer cover, a screen printing mark and a sealing device, wherein the touch screen outer cover is provided with the screen printing mark; the backlight module is provided with a retaining wall which extends from the backlight module to the silk-screen mark of the outer cover of the touch screen; the dispensing equipment is used for positioning according to the silk-screen mark on the outer cover of the touch screen, sealing glue is spread at the silk-screen mark, and then the retaining wall of the backlight module is aligned with the silk-screen mark for positioning and then assembled.
The invention has the following advantages:
1. the retaining wall of the backlight module, the silk screen printing and the sealing glue on the outer cover of the touch screen are combined, so that the light leakage prevention effect is good;
2. the amount of the hot melt adhesive needed by the circular hole sealing glue is less, the dead time of the manufacturing process is short, the cost is lower, the risk of glue overflow is low, the glue width is easy to control, and the difficulty of the whole manufacturing process is lower.
Drawings
FIG. 1 illustrates a conventional molding process in the prior art.
FIG. 2 is a schematic diagram of a through-hole screen sealing structure according to the present invention.
FIG. 3 is a schematic diagram of a structure of a through hole screen sealing compound according to an embodiment of the invention.
Detailed Description
To further illustrate the technical means and effects of the present invention for achieving the predetermined purpose, the following detailed description of the through-hole screen sealing structure, its specific implementation, structure, features and effects will be made with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 2, a through-hole screen sealing structure according to a schematic diagram of the through-hole screen sealing structure of the present invention is a through-hole screen sealing structure by a dispensing device, and the structure includes: a touch screen cover 110, which is designed with a silk-screen mark 111; and a backlight module 140 having a retaining wall 141; the dispensing equipment distributes the hot melt adhesive 300 over the silk-screen mark 111, and then aligns the retaining wall 141 of the backlight module 140 with the sealing adhesive for assembly.
In this embodiment, the silk-screen mark 111 is a black ink silk-screen mark, the silk-screen mark 111 is a circular hole silk-screen mark, in addition, an inner through hole is formed in the position of the silk-screen mark 111, and the silk-screen mark 111 is used as the inner edge of the display area, so that the appearance of the inner through hole is in a standard circular shape.
In the embodiment, an upper polarizer 121, an in-cell touch panel 130 and a lower polarizer 122 are further included between the touch panel cover 110 and the backlight module 140.
In this embodiment, the dispensing device performs positioning according to the silk-screen mark 111 of the outer cover of the touch screen.
In this embodiment, the retaining wall 141 of the backlight module 140 is aligned with the silk-screen mark and then assembled.
In the prior art, the camera at the through hole is very sensitive to light, the light emitted from the side of the through hole of the touch panel 130, the opening of the polarizer 120, and the opening of the backlight module 140 will seriously affect the image capturing effect (as shown in fig. 1), and the black sealant 100 is coated to shield the light transmitted from the through hole, and in order to meet the light shielding requirement, the black sealant 100 is required to cover the gap between the backlight module 140 and the lower polarizer 122, the side of the through hole of the touch panel 130, the gap between the upper polarizer 121 and the outer cover 110 of the touch screen, and other regions.
In this embodiment, the touch screen cover is designed with a silk-screen mark, especially a circle of black ink silk-screen (no hole is formed in the touch screen cover), and the functions are as follows:
1. the silk-screen mark 111 of the outer cover 110 of the touch screen is used as the inner edge of the display area to ensure that the appearance of the through hole is in a standard circle shape;
2. when the through hole is coated with glue and the backlight module 140 is assembled, the machine can align by grabbing the silk-screen mark 111 of the outer cover 110 of the touch screen, and compared with the upper polarizer 121, the embedded touch panel 130 and the lower polarizer 122, the silk-screen mark 111 ink of the outer cover 110 of the touch screen is easier to identify by the machine CCD, so that the process stability is increased;
3. the round-hole silk-screen mark 111 can enhance the shading effect: if the glue is not filled in the gaps among the upper polarizer 121, the in-cell touch panel 130, the lower polarizer 122, and the backlight module 140, the circular hole-shaped silk-screen mark 111 may block part of the light leakage.
Referring to fig. 3, a schematic diagram of a structure of a through hole screen sealing compound according to an embodiment of the invention is shown. Through-hole screen seals gluey structure is sealed through some equipment of gluing and is sealed, its characterized in that, the structure includes: a silk-screen mark 111 is designed on a touch screen outer cover 110, the silk-screen mark 111 is a black ink silk-screen mark, the silk-screen mark 111 is preferably a round hole silk-screen mark, in addition, a through hole is formed in one surface of the silk-screen mark 111, and the silk-screen mark 111 is used as the inner edge of a display area, so that the appearance of the through hole in the surface is in a standard circle shape.
The backlight module 140 is provided with a retaining wall 141, and the retaining wall 141 extends from the backlight module 140 to the silk-screen mark 111 of the outer cover of the touch screen; the dispensing equipment positions according to the silk-screen mark 111 of the touch screen outer cover 110, spreads the hot melt adhesive 300 over the silk-screen mark 111, aligns the silk-screen mark 111 through the retaining wall 141 of the backlight module 140, and then assembles the upper polarizer 121, the in-cell touch panel 130, the lower polarizer 122, and the backlight module 140, so that the camera 400 can obtain a better camera through the in-plane through hole of the silk-screen mark 111.
The retaining wall 141 of the backlight module 140 is designed to extend into the opening of the in-cell touch panel 130, and directly connected to the hot melt adhesive, and the functions are as follows:
1. a great deal of light transmission can be blocked by the retaining wall 141 of the backlight module 140;
2. the hot melt adhesive 300 only needs to seal the gap between the retaining wall 141 of the backlight module 140 and the outer cover 110 of the touch screen to ensure no light leakage. Compared with the design before optimization: the single-piece gluing time/gluing amount is greatly reduced; the risk of glue overflow is reduced, the difficulty of the whole gluing process is reduced, and the stability is improved.
In the invention, the through hole screen sealing structure has the following technical points:
1. fitting an outer cover of the touch screen: hard paste equipment carries out round hole counterpoint through snatching embedded touch panel district of through-hole department and touch screen enclosing cover silk screen printing
2. Gluing through holes: the dispensing equipment is positioned according to the circular hole silk screen printing of the outer cover of the touch screen. The glue spreading width controls that the black glue does not exceed the silk-screen printing mark and the glue can not overflow into the hole; the glue height slightly exceeds the designed distance between the retaining wall of the backlight module and the outer cover of the touch screen, so that the retaining wall of the backlight module is completely overlapped with the black glue after assembly.
3. Assembling the backlight module: and (3) standing for a period of time (the length depends on the property of the hot melt adhesive) after dispensing, and assembling the backlight module by the assembling equipment by grabbing the silk-screen mark on the outer cover of the touch screen to align the circular hole with the retaining wall of the backlight module.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a through-hole screen seals gluey structure, is through a little gluey equipment and seals glue, its characterized in that, the structure includes:
the touch screen outer cover is provided with a silk-screen mark; and
the backlight module is provided with a retaining wall;
and coating sealing glue at the silk-screen mark position by the dispensing equipment, and then assembling the retaining wall of the backlight module to the sealing glue.
2. The through-hole screen sealing adhesive structure according to claim 1, wherein the silk-screen mark is a black ink silk-screen mark.
3. The through-hole screen sealing adhesive structure of claim 2, wherein the silk-screen mark is a round-hole silk-screen mark.
4. The sealant structure of claim 1, further comprising a polarizer and an in-cell touch panel between the touch panel cover and the backlight module.
5. The through-hole screen sealing compound structure of claim 1, wherein the sealing compound is a hot melt adhesive.
6. The through-hole screen sealing compound structure of claim 1, wherein the silk-screen mark is a through-hole in one surface.
7. The through-hole screen sealing compound structure of claim 6, wherein the silk-screen mark is used as an inner edge of the display area, so that the appearance of the through-hole in the display area is in a standard circular shape.
8. The through-hole screen sealing compound structure of claim 1, wherein the dispensing equipment is positioned according to the silk-screen mark of the outer cover of the touch screen.
9. The through-hole screen sealing compound structure of claim 1, wherein the retaining wall of the backlight module is assembled after being aligned with the silk-screen mark.
10. The utility model provides a through-hole screen seals gluey structure, is through a little gluey equipment and seals glue, its characterized in that, the structure includes:
the touch screen outer cover is provided with a silk-screen mark; and
the backlight module is provided with a retaining wall which extends from the backlight module to the silk-screen mark of the outer cover of the touch screen;
the dispensing equipment is used for positioning according to the silk-screen mark on the outer cover of the touch screen, sealing glue is spread at the silk-screen mark, and then the retaining wall of the backlight module is aligned with the silk-screen mark for positioning and then assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020841.8A CN110706588A (en) | 2019-10-25 | 2019-10-25 | Through-hole screen seals glue structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020841.8A CN110706588A (en) | 2019-10-25 | 2019-10-25 | Through-hole screen seals glue structure |
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| CN110706588A true CN110706588A (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911020841.8A Pending CN110706588A (en) | 2019-10-25 | 2019-10-25 | Through-hole screen seals glue structure |
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Application publication date: 20200117 |