CN210119643U - Liquid crystal module capable of preventing film material from wrinkling - Google Patents
Liquid crystal module capable of preventing film material from wrinkling Download PDFInfo
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- CN210119643U CN210119643U CN201921049667.5U CN201921049667U CN210119643U CN 210119643 U CN210119643 U CN 210119643U CN 201921049667 U CN201921049667 U CN 201921049667U CN 210119643 U CN210119643 U CN 210119643U
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- adhesive
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Abstract
The utility model discloses a prevent liquid crystal module of membrane material fold, include backlight unit and locate last lower polaroid of backlight unit, backlight unit includes: the frame, locate the light guide plate in the frame, locate the optics diaphragm on the light guide plate and locate the shading on the optics diaphragm and glue, the shading glues and is bilayer structure, and it includes that the upper strata glues and locates the upper strata glues the below and glues with the lower floor that the upper strata was glued and is pasted, the upper strata glue the top surface with down the polarizer, one of them that the upper strata was glued or the lower floor glues with the frame is pasted, and the upper strata is glued and is all not pasted with the optics diaphragm with lower floor is gluey. The utility model discloses an upper strata is glued and the design that lower floor glued, has both guaranteed original shading function, guarantee again with the bonding function of lower polaroid, can avoid the optics diaphragm to be glued by the shading glue simultaneously and paste, optics diaphragm can free shrinkage or inflation when high temperature environment tests, reduces the risk that the optics diaphragm produced the fold and warp.
Description
Technical Field
The utility model relates to a liquid crystal module field especially relates to a prevent liquid crystal module of membrane material fold.
Background
Referring to fig. 1, a light-shielding adhesive 100 in a current small-medium sized backlight is made of a black double-sided adhesive tape, an upper surface of the light-shielding adhesive is adhered to a polarizer, a portion of a lower surface of the light-shielding adhesive is adhered to a rubber frame 200, and a portion of the lower surface of the light-shielding adhesive is adhered to an upper bright enhancement film 300 of an optical film. The heat shrinkage rate of gluing frame 200 and last membrane 300 that adds lustre to is different, because the material of two kinds of different heat shrinkage rates is glued to shading glue 100 lower surface, easily leads to the membrane fold that adds lustre to when high temperature environment experiment. In order to prevent wrinkles, the conventional measures are to increase the thickness and the fluidity of the lower surface adhesive layer of the light-shielding adhesive 100, reduce the stress when the brightness enhancement film 300 shrinks, and reduce the risk of wrinkles of the light-shielding adhesive after environmental tests, but the material cost is increased accordingly, which is not favorable for cost control. And the thickness of the glue layer can be increased, glue overflow is easy to occur in a high-temperature environment or even a room-temperature environment, and the backlight source with a narrow frame design can influence the light-emitting effect of the edge.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, providing a prevent liquid crystal module of membrane material fold, the risk that optical diaphragm fold warp when reducing high temperature environment test.
The technical scheme of the utility model as follows: the utility model provides a prevent liquid crystal module of membrane material fold, includes backlight unit and locates lower polarizer on the backlight unit, backlight unit includes: the frame, locate light guide plate in the frame, locate last optics diaphragm of light guide plate and locating shading glue on the optics diaphragm, shading glue for bilayer structure, it includes that the upper strata glues and locates the lower floor that the upper strata glued the below and pasted with the upper strata glue glues, the upper strata glue the top surface with lower polaroid is pasted, one of them that the upper strata glued or lower floor glued is pasted with the frame, the upper strata is glued and is all not pasted with the optics diaphragm with lower floor's glue.
Further, the optical film is equal to the frame in height, and the edge of the lower polarizer is flush with the edge of the frame or extends out of the edge of the frame.
Furthermore, the upper layer glue is first single-sided glue, the lower layer glue is first double-sided glue, the adhesive surface of the first single-sided glue faces upwards, the adhesive surface of the first single-sided glue is adhered to the bottom surface of the lower polarizer, the top surface of the first double-sided glue is attached to the top surface of the first single-sided glue, and the bottom surface of the first double-sided glue is attached to the top surface of the frame.
Furthermore, the first single-sided adhesive and the first double-sided adhesive are both black, the width of the first single-sided adhesive is greater than that of the first double-sided adhesive, and the width of the first double-sided adhesive is equal to the thickness of the frame.
Further, the width of the first single-sided adhesive is 1.2-1.8 mm.
Further, the height of the optical film is lower than that of the frame, and the edge of the lower polarizer is located inside the frame.
Further, the upper layer of glue is second double-sided glue, the lower layer of glue is second single-sided glue, the adhesive surface of the second single-sided glue faces upwards, the top surface of the second double-sided glue is attached to the bottom surface of the lower polarizer, a part of the bottom surface of the second double-sided glue is attached to the top surface of the frame glue, and a part of the bottom surface of the second double-sided glue is attached to the top surface of the second single-sided glue.
Furthermore, the second single-sided adhesive and the second double-sided adhesive are black, the width of the second double-sided adhesive is larger than that of the second single-sided adhesive, a gap is formed between the edge of the second single-sided adhesive, which is close to one side of the frame, and the edge of the second single-sided adhesive, which is far away from one side of the frame, and the light-shielding adhesive are flush.
Further, the width of the second double-sided adhesive is 1.2-1.8 mm.
Further, the second single-sided adhesive is black PET.
Adopt above-mentioned scheme, the utility model discloses a design that upper strata was glued and lower floor is glued both guarantees original shading function, guarantee again with the adhesion function of lower polaroid, can avoid the optics diaphragm to be glued by the shading glue simultaneously and paste, optics diaphragm can freely shrink or expand when high temperature environment tests, reduces the risk that the optics diaphragm produced the fold and warp.
Drawings
Fig. 1 is a schematic structural diagram of a conventional liquid crystal module.
Fig. 2 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 2, the present invention provides a liquid crystal module for preventing film material from wrinkling, which includes a backlight module and a lower polarizer 1 disposed on the backlight module. The backlight module includes: the backlight module comprises a frame 2, a light guide plate 3 arranged in the frame 2, an optical diaphragm 4 arranged on the light guide plate 3, and a light shading glue 5 arranged on the optical diaphragm 4. The shading glue is of a double-layer structure and comprises an upper layer glue and a lower layer glue, wherein the lower layer glue is arranged below the upper layer glue and is adhered to the upper layer glue, the top surface of the upper layer glue is adhered to the lower polarizer 1, one of the upper layer glue or the lower layer glue is adhered to the frame 2, and the upper layer glue and the lower layer glue are not adhered to the optical diaphragm 4. The utility model has the following two embodiments.
The first embodiment is as follows:
referring to fig. 2, in the embodiment, the optical film 4 is as high as the frame 2, and the edge of the lower polarizer 1 is flush with the edge of the frame 2 or extends to the outside of the edge of the frame 2, that is, the lower polarizer 1 is a full sheet in the embodiment.
The upper layer glue is first single-sided glue 51, the lower layer glue is first double-sided glue 52, the adhesive surface of the first single-sided glue 51 faces upwards, the adhesive surface of the first single-sided glue 51 is adhered to the bottom surface of the lower polarizer 1, the top surface of the first double-sided glue 52 is attached to the top surface of the first single-sided glue 51, and the bottom surface of the first double-sided glue 52 is attached to the top surface of the frame 2.
The first single-sided adhesive 51 and the first double-sided adhesive 52 are both black, the width of the first single-sided adhesive 51 is greater than that of the first double-sided adhesive 52, and the width of the first double-sided adhesive 52 is equal to the thickness of the frame 2, so that the light-shielding adhesive 5 can be more reliably fixed on the frame 2.
The width of the first single-sided adhesive 51 is 1.2-1.8 mm.
In this embodiment, the upper glue is pasted with lower polaroid 1, and the lower glue is pasted with frame 2, and the upper glue is all not pasted with optical film 4 with lower glue, and optical film 4 produces the fold when preventing high temperature environment test. This embodiment is suitable for the case where the lower polarizer 1 is a full sheet.
Example two:
referring to fig. 3, in the embodiment, the height of the optical film 4 is lower than that of the frame 2, and the edge of the lower polarizer 1 is located inside the frame 2, that is, the lower polarizer 1 is deposited inside the frame 2 in the embodiment.
The upper layer of glue is a second double-sided glue 53, the lower layer of glue is a second single-sided glue 54, the adhesive surface of the second single-sided glue 54 faces upwards, the top surface of the second double-sided glue 53 is attached to the bottom surface of the lower polarizer 1, a part of the bottom surface of the second double-sided glue 53 is attached to the top surface of the frame glue 2, and a part of the bottom surface of the second double-sided glue 53 is attached to the top surface of the second single-sided glue 54.
The second single-sided adhesive 54 and the second double-sided adhesive 53 are black, the width of the second double-sided adhesive 53 is greater than that of the second single-sided adhesive 54, a gap is formed between the edge of the second single-sided adhesive 54 close to one side of the frame 2 and the frame 2, namely, the edge of one side of the second single-sided adhesive 54 close to the frame 2 is not in contact with the frame 2, and the edge of one side of the second single-sided adhesive 54 far away from the frame 2 is flush with the shading adhesive.
The second single-sided adhesive 54 is black PET with a width of 1.2-1.8 mm.
In this embodiment, the upper glue is pasted with frame and lower polaroid, and the non-viscidity face that lower floor glued is close to the optics diaphragm, and lower floor glues and does not paste mutually with the optics diaphragm to when high temperature environment test, the optics diaphragm can not influenced by the frame, therefore the fold can not take place for the optics diaphragm.
To sum up, the utility model discloses a design that upper strata was glued and lower floor is glued has both guaranteed original shading function, guarantee again with the adhesion function of lower polaroid, can avoid the optics diaphragm to be glued by the shading glue simultaneously and paste, optics diaphragm can freely contract or expand when high temperature environment tests, reduces the risk that the optics diaphragm produced the fold and warp.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a prevent liquid crystal module of membrane material fold which characterized in that, includes backlight unit and locates lower polarizer on the backlight unit, backlight unit includes: the frame, locate light guide plate in the frame, locate last optics diaphragm of light guide plate and locating shading glue on the optics diaphragm, shading glue for bilayer structure, it includes that the upper strata glues and locates the lower floor that the upper strata glued the below and pasted with the upper strata glue glues, the upper strata glue the top surface with lower polaroid is pasted, one of them that the upper strata glued or lower floor glued with the frame is pasted, the upper strata glues all not paste with the optics diaphragm with lower floor glue.
2. The liquid crystal module of claim 1, wherein the optical film is flush with the frame, and the edge of the lower polarizer is flush with the edge of the frame or extends out of the edge of the frame.
3. The liquid crystal module of claim 2, wherein the upper layer of adhesive is a first single-sided adhesive, the lower layer of adhesive is a first double-sided adhesive, the adhesive surface of the first single-sided adhesive faces upward, the adhesive surface of the first single-sided adhesive is adhered to the bottom surface of the lower polarizer, the top surface of the first double-sided adhesive is adhered to the top surface of the first single-sided adhesive, and the bottom surface of the first double-sided adhesive is adhered to the top surface of the frame.
4. The liquid crystal module of claim 3, wherein the first single-sided adhesive and the first double-sided adhesive are black, the width of the first single-sided adhesive is greater than that of the first double-sided adhesive, and the width of the first double-sided adhesive is equal to the thickness of the frame.
5. The liquid crystal module of claim 4, wherein the width of the first single-sided adhesive is 1.2-1.8 mm.
6. The liquid crystal module of claim 1, wherein the optical film has a height lower than that of the frame, and the edge of the lower polarizer is located inside the frame.
7. The liquid crystal module of claim 6, wherein the upper layer of glue is a second single-sided glue, the lower layer of glue is a second single-sided glue, the adhesive surface of the second single-sided glue faces upward, the top surface of the second single-sided glue is attached to the bottom surface of the lower polarizer, a portion of the bottom surface of the second single-sided glue is attached to the top surface of the frame glue, and a portion of the bottom surface of the second single-sided glue is attached to the top surface of the second single-sided glue.
8. The liquid crystal module of claim 7, wherein the second single-sided adhesive and the second double-sided adhesive are black, the width of the second double-sided adhesive is greater than that of the second single-sided adhesive, a gap is formed between the edge of the second single-sided adhesive on the side close to the frame and the frame, and the edge of the second single-sided adhesive on the side far away from the frame and the light-shielding adhesive are flush.
9. The liquid crystal module of claim 8, wherein the width of the second double-sided adhesive is 1.2-1.8 mm.
10. The liquid crystal module of claim 7, wherein the second single-sided adhesive is black PET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921049667.5U CN210119643U (en) | 2019-07-05 | 2019-07-05 | Liquid crystal module capable of preventing film material from wrinkling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921049667.5U CN210119643U (en) | 2019-07-05 | 2019-07-05 | Liquid crystal module capable of preventing film material from wrinkling |
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| Publication Number | Publication Date |
|---|---|
| CN210119643U true CN210119643U (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921049667.5U Active CN210119643U (en) | 2019-07-05 | 2019-07-05 | Liquid crystal module capable of preventing film material from wrinkling |
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| CN (1) | CN210119643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255841A (en) * | 2020-11-05 | 2021-01-22 | 合肥京东方显示光源有限公司 | Backlight module, liquid crystal display and electronic equipment |
-
2019
- 2019-07-05 CN CN201921049667.5U patent/CN210119643U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255841A (en) * | 2020-11-05 | 2021-01-22 | 合肥京东方显示光源有限公司 | Backlight module, liquid crystal display and electronic equipment |
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