CN220265611U - Optical unit - Google Patents
Optical unit Download PDFInfo
- Publication number
- CN220265611U CN220265611U CN202321117802.1U CN202321117802U CN220265611U CN 220265611 U CN220265611 U CN 220265611U CN 202321117802 U CN202321117802 U CN 202321117802U CN 220265611 U CN220265611 U CN 220265611U
- Authority
- CN
- China
- Prior art keywords
- light shielding
- optical member
- shielding tape
- layer
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 108
- 239000007769 metal material Substances 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 36
- 239000012790 adhesive layer Substances 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- -1 polyethylene terephthalate Polymers 0.000 claims description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 6
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 4
- 229920001225 polyester resin Polymers 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 3
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 3
- 239000012461 cellulose resin Substances 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 229920005672 polyolefin resin Polymers 0.000 claims description 3
- 229920005749 polyurethane resin Polymers 0.000 claims description 3
- 239000005033 polyvinylidene chloride Substances 0.000 claims description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 239000002390 adhesive tape Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 230000000873 masking effect Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Adhesive Tapes (AREA)
Abstract
An optical unit comprising an optical member (10) and a light shielding tape (20), wherein the light shielding tape (20) is adhered to the end of the front surface (11), the end of the back surface (12) and the side surface (13) of the optical member (10) over the entire circumference of the optical member (10), and the light shielding tape (20) does not contain a metal material.
Description
Technical Field
The present utility model relates to an optical unit.
Background
In the prior art, the shading adhesive tape is an adhesive tape for realizing light blocking, and is widely applied to fixing and various shading of backlight modules of products such as notebook computers, mobile phones and tablet computers so as to solve the problem of light leakage of the backlight modules. Along with the continuous improvement of the performance of electronic products, people put higher demands on the shading adhesive tape.
Currently, a light shielding tape that is often used is generally composed of a light shielding layer in which durability, thermal conductivity, and shielding property are increased by having a metal foil, and an adhesive layer. However, when such a light shielding tape is used to bond an indium tin oxide conductive glass or an electrostatic capacity type touch panel, a metal foil such as an aluminum foil is included in the light shielding tape, and thus, there is a case where a failure occurs due to the conduction of the aluminum foil. In addition, when the electronic product is used for a long time, there is a phenomenon that the light shielding tape peels off.
Disclosure of Invention
The present utility model has been made in view of the above-described problems, and an object thereof is to provide an optical unit which prevents failure due to conduction and in which a light shielding tape is less likely to peel off.
In order to achieve the above object, the present utility model provides an optical unit including an optical member and a light shielding tape, wherein the light shielding tape is adhered to an end of a front surface, an end of a back surface and a side surface of the optical member over an entire circumference of the optical member, and the light shielding tape does not contain a metal material.
According to the optical unit of the present utility model, the light shielding tape is provided with the optical member and the light shielding tape, the light shielding tape does not contain a metal material, and the light shielding tape covers the optical member from three sides of the surface, the back surface and the side surface of the optical member, so that it is possible to prevent the occurrence of failure due to the electrification caused by the presence of the metal material in the light shielding tape, and the light shielding tape is more firmly adhered to the optical member due to the light shielding tape covering the optical member from three sides of the surface, the back surface and the side surface of the optical member.
In the above optical unit, the light shielding tape is a black light shielding tape.
In the optical unit, the light shielding tape includes a light shielding layer and an adhesive layer (22).
In the optical unit, the adhesive force of the adhesive layer is 10N/25mm or more.
Since the adhesive layer with high adhesion is used, when the light shielding tape covers the optical member from three sides of the front surface, the back surface and the side surfaces of the optical member, the light shielding tape does not peel off from the optical member even if it is used for a long period of time.
In the optical unit, the light shielding layer has a thickness of 2 μm to 100 μm and the adhesive layer has a thickness of 1 μm to 300 μm.
In the above optical unit, the light shielding layer may be made of one of polyurethane resin, polyester resin, polyolefin resin, acrylonitrile-butadiene-styrene copolymer, polystyrene, polyvinyl chloride, polyvinylidene chloride, fluororesin, cellulose resin, and crosslinked products thereof.
In the optical unit described above, the light shielding layer is made of polyethylene terephthalate mixed with a black pigment.
In the optical unit, the light shielding layer includes a base layer made of soft polyethylene terephthalate and a colored layer, the thickness of the base layer is 2 μm to 100 μm, and the thickness of the colored layer is 0.5 μm to 10 μm.
In the above optical unit, the width of the light shielding tape covering the surface of the optical member is equal to or greater than the thickness of the optical member.
In the above optical unit, the width of the light shielding tape covering the front surface of the optical member is larger than the width of the light shielding tape covering the rear surface of the optical member.
In the above optical unit, the following advantageous effects are provided.
According to the optical unit of the present utility model, the optical member and the light shielding tape are included, the light shielding tape does not contain a metal material, and the light shielding tape covers the optical member from three sides of the front surface, the back surface and the side surface of the optical member, so that it is possible to prevent occurrence of failure due to energization caused by energization of the light shielding tape due to the metal material, and the light shielding tape can be more firmly adhered to the optical member due to the light shielding tape covering the optical member from three sides of the front surface, the back surface and the side surface of the optical member.
Further, since the adhesive layer having a high adhesion of 10N/25mm or more is used, when the light shielding tape covers the optical member from three sides of the front surface, the back surface and the side surface of the optical member, the light shielding tape does not peel off from the optical member even when the light shielding tape is used for a long period of time.
Drawings
Fig. 1 is a schematic cross-sectional view of an optical unit of the present utility model.
Fig. 2 is a schematic top view of an optical unit of the present utility model.
Fig. 3 is a schematic cross-sectional view of an embodiment of the masking tape of the present utility model.
Fig. 4 is a schematic cross-sectional view of another embodiment of the masking tape of the present utility model.
Description of the reference numerals
10. Optical component
11. Surface of optical member
12. Back of optical member
13. Side of optical component
20. Shading adhesive tape
21. Light shielding layer
22. Adhesive layer
210. Base layer
211. Coloring layer
Detailed Description
Hereinafter, embodiments of the present utility model will be described with reference to the drawings. However, the optical units disclosed in the following embodiments are merely examples, and the optical units are not limited to the following embodiments as long as the effects of the present utility model can be achieved.
Fig. 1 is a schematic cross-sectional view of an optical unit of the present utility model. Fig. 2 is a schematic top view of an optical unit of the present utility model. Fig. 3 is a schematic cross-sectional view of an embodiment of the masking tape of the present utility model. Fig. 4 is a schematic cross-sectional view of another embodiment of the masking tape of the present utility model.
As shown in fig. 1 and 2, the present utility model relates to an optical unit including an optical member 10 and a light shielding tape 20, wherein the light shielding tape 20 is adhered to an end portion of a front surface 11, an end portion of a back surface 12 and a side surface 13 of the optical member 10 over the entire circumference of the optical member 10, and the light shielding tape 20 does not contain a metal material.
Specifically, the optical component is a screen of a notebook computer, a mobile phone, a tablet computer, and the like. The optical component is made of one of glass, acrylic resin, polycarbonate, polyimide, polyester fiber, polyolefin, polyvinyl chloride and polystyrene.
The light shielding tape 20 may be a black light shielding tape, but is not limited thereto, and may be a black-and-white light shielding tape, a silver light shielding tape, or the like, as long as light shielding is possible.
The optical unit of the present utility model includes the optical member and the light shielding tape, the light shielding tape does not contain a metal material, and the light shielding tape covers the optical member from three sides of the front surface, the back surface and the side surface of the optical member, so that it is possible to prevent failure due to energization caused by energization due to the presence of the metal material in the light shielding tape, and the light shielding tape can be more firmly adhered to the optical member by covering the optical member from three sides of the front surface, the back surface and the side surface of the optical member.
In addition, as shown in fig. 3, the light shielding tape 20 includes a light shielding layer 21 and an adhesive layer 22. The light shielding layer 21 is made of one of polyurethane resin, polyester resin, polyolefin resin, acrylonitrile-butadiene-styrene copolymer, polystyrene, polyvinyl chloride, polyvinylidene chloride, fluororesin, cellulose resin and crosslinked products thereof.
In the present utility model, since the light-shielding tape covers the optical member from three sides of the front surface, the back surface and the side surface of the optical member, it is preferable to use polyethylene terephthalate, which is a thin and soft polyester-based resin, for the light-shielding layer 21.
The adhesive layer 22 is an adhesive having an adhesive force of 10N/25mm or more, preferably 15N/25mm or more, and has an adhesive force of 40N/25mm or less. However, the adhesive force of the adhesive is not limited to this, and may be set according to the requirements of different optical units. As the adhesive, known adhesives such as an acrylic adhesive, a rubber adhesive, an epoxy adhesive, and a urethane adhesive can be used. Since the adhesive layer having a high adhesion of 10N/25mm or more is used, when the light shielding tape covers the optical member from three sides of the front surface, the back surface and the side surfaces of the optical member, the light shielding tape does not peel off from the optical member even when the light shielding tape is used for a long period of time.
As the light shielding layer 21, as shown in fig. 3, a light shielding layer formed by mixing a black pigment into polyethylene terephthalate may be used, and in this case, the thickness of the light shielding layer 21 is 2 μm to 100 μm and the thickness of the adhesive layer 22 is 1 μm to 300 μm. The thickness of the adhesive layer 22 is preferably 10 μm to 50 μm. More specifically, the thickness of the light shielding layer 21 is preferably 20 μm.
In addition, as shown in fig. 4, the light shielding layer 21 may include a base layer 210 and a colored layer 211 made of soft polyethylene terephthalate. Wherein the thickness of the base layer 210 is 2 μm to 100 μm and the thickness of the colored layer is 0.5 μm to 10 μm.
The optical unit of the present utility model is exemplified below.
In the present utility model, for example, glass is used as the optical member 10, which is used for a display screen of a notebook computer, and the thickness of the optical member 10 is 2.5mm. The light shielding tape 20 is adhered to the end of the front surface 11, the end of the back surface 12, and the side surface 13 of the optical member 10 over the entire circumference of the optical member 10, that is, the optical member 10 is surrounded from three sides of the optical member 10.
The light shielding tape 20 includes a light shielding layer 21 and an adhesive layer 22, the light shielding layer 21 is a black light-emitting layer having a thickness of 20 μm, the adhesive layer 22 has a thickness of 30 μm, and the adhesive force is 16N/25mm or more.
In addition, the width of the portion of the light shielding tape 20 covering the end portion of the surface 11 of the optical member 10, that is, the distance extending inward from the end portion of the optical member 10 is 4mm. The width of the portion of the light shielding tape 20 covering the end portion of the back surface 12 of the optical member 10, i.e., the distance extending inward from the end portion of the optical member 10 was 2mm.
The width of the light shielding tape 20 covering the surface 11 of the optical member 10 is preferably equal to or greater than the thickness of the optical member, but is not limited thereto, and may be set according to different specifications. In addition, the width of the light shielding tape 20 covering the surface 11 of the optical member 10 is larger than the width of the light shielding tape covering the back surface 12 of the optical member 10. In the present embodiment, the width of the light shielding tape 20 covering the front surface 11 of the optical member 10 is preferably 2mm to 10mm, and the width of the light shielding tape covering the back surface 12 of the optical member 10 is preferably 1mm to 5mm.
Finally, it should be noted that: the above embodiments are merely specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: modifications and variations of the embodiments described herein will be apparent to those skilled in the art, and equivalents may be substituted for elements thereof without departing from the scope of the utility model. Such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.
Claims (9)
1. An optical unit comprising an optical member (10) and a light shielding tape (20), wherein the light shielding tape (20) is adhered to the end of the front surface (11), the end of the back surface (12) and the side surface (13) of the optical member (10) on the whole circumference of the optical member (10), and the light shielding tape (20) does not contain a metal material.
2. The optical unit according to claim 1, characterized in that the light-shielding tape (20) is a black light-shielding tape.
3. An optical unit according to claim 1 or 2, characterized in that the light-shielding tape (20) comprises a light-shielding layer (21) and an adhesive layer (22).
4. An optical unit according to claim 3, wherein the adhesive force of the adhesive layer (22) is 10N/25mm or more.
5. An optical unit according to claim 4, characterized in that the light shielding layer (21) has a thickness of 2 μm to 100 μm and the adhesive layer (22) has a thickness of 1 μm to 300 μm.
6. The optical unit according to claim 4, wherein the light shielding layer (21) is made of one of polyurethane resin, polyester resin, polyolefin resin, acrylonitrile-butadiene-styrene copolymer, polystyrene, polyvinyl chloride, polyvinylidene chloride, fluorine resin, and cellulose resin.
7. An optical unit according to claim 4, characterized in that the light shielding layer (21) comprises a base layer (210) of soft polyethylene terephthalate and a coloured layer (211), the base layer (210) having a thickness of 2 μm to 100 μm and the coloured layer having a thickness of 0.5 μm to 10 μm.
8. An optical unit according to claim 1, characterized in that the width of the light-shielding tape (20) covering the surface (11) of the optical member (10) is above the thickness of the optical member (10).
9. An optical unit according to claim 7, characterized in that the width of the light-shielding tape (20) covering the surface (11) of the optical member (10) is larger than the width of the light-shielding tape covering the back surface (12) of the optical member (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321117802.1U CN220265611U (en) | 2023-05-10 | 2023-05-10 | Optical unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321117802.1U CN220265611U (en) | 2023-05-10 | 2023-05-10 | Optical unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220265611U true CN220265611U (en) | 2023-12-29 |
Family
ID=89301477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321117802.1U Active CN220265611U (en) | 2023-05-10 | 2023-05-10 | Optical unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220265611U (en) |
-
2023
- 2023-05-10 CN CN202321117802.1U patent/CN220265611U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |