CN211878386U - Optical film composite quantum dot plate and backlight module - Google Patents
Optical film composite quantum dot plate and backlight module Download PDFInfo
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- CN211878386U CN211878386U CN202020365252.5U CN202020365252U CN211878386U CN 211878386 U CN211878386 U CN 211878386U CN 202020365252 U CN202020365252 U CN 202020365252U CN 211878386 U CN211878386 U CN 211878386U
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Abstract
The utility model provides a compound quantum dot board of blooming and backlight unit relates to optics technical field in a poor light, including optics rete, bond line and quantum dot diffusion sheet layer, the bond line is located the optics rete with between the quantum dot diffusion sheet layer, the bond line is suitable for the bonding fixed the optics rete with the quantum dot diffusion sheet layer forms three-layer platelike structure. Compound quantum dot board of blooming and backlight unit, through with blooming and quantum dot board combined technology, improve product an organic whole performance, satisfy more efficient automatic equipment, greatly practice thrift staff's repeatability, mechanical operation, improve product equipment yield to very big improvement liquid crystal module color display ability, make the display screen more lively, bright-colored optimizes consumer and uses experience, promotes the further development of backlight display technology.
Description
Technical Field
The utility model relates to an optics technical field in a poor light particularly, relates to a compound quantum dot board of blooming and backlight unit.
Background
With the development of social science and technology and the improvement of the living standard of people, the requirements of people on the performance of pictures of computers, televisions and outdoor large-scale display equipment are higher and higher, the requirement on high definition of picture display is higher and higher, and the requirement on display colors is more and more bright and vivid. With the high-frequency outdoor use of these electronic devices, people also put higher demands on their display effects in outdoor bright environments, which requires that the display screen has higher and higher brightness and more vivid colors, so as to ensure the outdoor use effect of consumers.
However, the display panel of the existing display equipment has poor integrity, the visual effect color gamut of the display panel is not high, the assembly efficiency is poor, the energy efficiency is low, and the color effect is to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem, current display panel wholeness is poor, and the look effect colour of display panel is not high, and assembly efficiency is poor, and the efficiency is low, and the color effect remains to improve.
In order to solve the problem, the utility model provides a compound quantum dot board of blooming, including optics rete, bond line and quantum dot diffusion sheet layer, the bond line is located optics rete with between the quantum dot diffusion sheet layer, the bond line is suitable for the bonding to be fixed optics rete with the quantum dot diffusion sheet layer forms three-layer plate structure.
Compound quantum dot board of blooming, through with optics diaphragm and quantum dot board combined technology, improve product an organic whole performance, satisfy more efficient automatic equipment, greatly practice thrift staff's repeatability, mechanical operation, improve product equipment yield to greatly improve liquid crystal module color display ability, make the display screen more lively, bright-colored, optimize consumer and use experience, promote the further development of display technology in a poor light.
Optionally, the joint surface of the quantum dot diffusion plate layer and the bonding layer is provided with a plurality of protrusions, and the structure of the protrusions comprises at least one of a striped prism structure, a quadrangular frustum structure and a sand structure; the protrusions are adapted to fully or partially engage the adhesive layer.
Optionally, the optical film layer includes at least one of a brightness enhancement film, a diffusion film, a POP composite film, a DOP composite film, a DBEF film, a blue-transmitting film, and a reverse blue film.
Optionally, the adhesive layer comprises one or two of a UV resin adhesive layer and an organic acrylic adhesive layer.
Optionally, the bonding layer is uniformly distributed between the optical film layer and the quantum dot diffusion plate layer.
Optionally, the arrangement density of the protrusions gradually distributed from the center of the quantum dot diffusion plate layer to the outside is gradually increased.
Optionally, the height of the protrusions gradually increases from the center of the quantum dot diffusion plate layer to the outside.
The utility model also provides a backlight module, including above-mentioned arbitrary item the compound quantum dot board of blooming, still include liquid crystal display panel and light source, the compound quantum dot board of blooming is located the light source with between the liquid crystal display panel, the light-emitting side orientation of light source the income light side of the compound quantum dot board of blooming, the light-emitting side orientation of the compound quantum dot board of blooming the income light side of liquid crystal display panel.
Optionally, the light source includes an LED lamp, and the optical film composite quantum dot plate is located between the LED lamp and the liquid crystal panel.
Optionally, the light source includes an LED lamp, a light guide plate, and a reflection plate, the optical film composite quantum dot plate is located between the light guide plate and the liquid crystal panel, the reflection plate is located on a side of the light guide plate away from the optical film composite quantum dot plate, the LED lamp is located on a side surface of the light guide plate, and light emitted from the LED lamp is suitable for entering the light guide plate from the side surface.
Backlight unit, it is narrow to have solved the light colour gamut that ordinary LED lamp provided, the colour is bright-colored lively problem inadequately, further improves the visual effect colour gamut of whole module, obtains better color effect, the compound quantum dot board of blooming improves the panel efficiency, improves module assembly efficiency, practices thrift the manpower, environmental protection.
Drawings
FIG. 1 is a schematic view showing the structure of an optical film composite quantum dot plate according to an embodiment of the present invention'
Fig. 2 is a schematic diagram of a structure of an optical film composite quantum dot plate according to an embodiment of the present invention;
fig. 3 is a schematic view of an optical film composite quantum dot plate applied to a direct-type backlight module according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating that the optical film composite quantum dot plate according to the embodiment of the present invention is applied to a side-in type backlight module.
Description of reference numerals:
1-optical film composite quantum dot plate; 11-an optical film layer; 12-an adhesive layer; 13-a quantum dot diffusion plate layer; 131-protrusions; 2-a liquid crystal panel; 3-a light source; 31-LED lamps; 32-a light guide plate; 33-reflector plate.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that terms such as "upper", "lower", "front", "rear", and the like in the embodiments indicate terms of orientation, and are only used for simplifying the description of positional relationships based on the drawings of the specification, and do not represent that the elements, devices, and the like indicated in the description must be operated according to specific orientations and defined operations and methods, configurations, and such terms of orientation do not constitute limitations of the present invention.
The present embodiment provides an optical film composite quantum dot plate, which is shown in fig. 1 and includes an optical film layer 11, a bonding layer 12 and a quantum dot diffusion plate layer 13, the bonding layer 12 is located between the optical film layer 11 and the quantum dot diffusion plate layer 13, the bonding layer 12 bonds and fixes the optical film layer 11 and the quantum dot diffusion plate layer 13, and forms a three-layer plate structure, specifically, taking a rectangular plate as an example, the optical film layer 11, the bonding layer 12 and the quantum dot diffusion plate layer 13 have the same shape, length and width, and the thicknesses of the optical film layer 11, the bonding layer 12 and the quantum dot diffusion plate layer 13 may be set to be the same or different according to different actual requirements.
Preferably, the optical film composite quantum dot plate 1 described in this embodiment is a rectangular plate, the length and width of the optical film composite quantum dot plate 1 are both less than 2 meters, and the thickness of the optical film composite quantum dot plate 1 is within a range from 0.5 to 5 mm.
Specifically, the optical film layer 11 includes at least one of a brightness enhancement film, a diffusion film, a POP composite film, a DOP composite film, a DBEF film, a blue-transmitting film, and a reverse blue film. The optical film layer 11 is changed to endow the optical film composite quantum dot plate with different functions, such as using a POP composite film layer to improve the visual brightness of the optical film composite quantum dot plate; if the DC blue light transmission film layer is used, the visual effect uniformity of the optical film composite quantum dot plate is improved; the brightness enhancement film enables light rays to be emitted out in the expected front concentrated direction, so that the visual angle can be controlled, and the brightness and the uniformity can be increased; the diffusion film can increase the diffusion of light, prevent display mottle and promote the illumination brightness to be uniform; the DOP composite film plays a role of a single-layer brightening membrane and a diffusion film; the DBEF film is compounded into a multilayer film by utilizing the characteristics of two different high-refractive index material macromolecules, and the brightening effect is achieved.
Specifically, the adhesive layer 12 includes one or a combination of two of a UV resin adhesive layer and an organic acrylic adhesive layer. The adhesive layer 12 has a viscosity of more than 80gf/25mm, the adhesive layer 12 has a thickness of 5 to 50 μm, and a light transmittance of more than 80%.
UV resin glue or organic acrylic acid glue are evenly smeared on the light incoming surface of the optical film layer 11, the optical film layer 11 and the quantum dot diffusion plate layer 13 are tightly pressed through the composite rubber compression roller, and the UV lamp curing adhesive glue layer is adjusted, so that the optical film layer 11 and the quantum dot diffusion plate layer 13 are bonded into an integrated structure, and through the structure, the smoothness of the optical film layer 11 and the quantum dot diffusion plate layer 13 is greatly improved, the visual effect of the optical film composite quantum dot plate 1 and the display module matching is also greatly superior to that of the traditional module framework, the assembly efficiency of the display module is greatly improved, the automation is realized, and the labor cost is saved.
Preferably, the adhesive layer 12 is uniformly distributed between the optical film layer 11 and the quantum dot diffusion plate layer 13. Specifically, the adhesive layer 12 should be fully stirred during preparation to ensure that the adhesive layer 12 is fully uniform, the adhesive layer 12 should be uniformly coated between the optical film layer 11 and the quantum dot diffusion plate layer 13, the optical film layer 11 and the quantum dot diffusion plate layer 13 are tightly pressed by a composite rubber press roller, and an adhesive glue layer is cured by adjusting a UV energy lamp (the energy of the UV lamp is less than or equal to 3000mj/cm2) or high-temperature curing (the high temperature is greater than or equal to 50 ℃) baking and curing, so that the optical film layer 11 and the quantum dot diffusion plate layer 13 are bonded into an integral structure, and the thickness of the adhesive layer 12 in the middle is consistent, thereby ensuring the balance of light transmission.
Specifically, the quantum dot diffusion plate layer 13 is a light diffusion plate containing quantum dot material, and is generally made by performing high-temperature single-layer extrusion on the quantum dot material and an optical material (PS material, PMMA material, PC material, PET material, silicone diffusion powder, or the like) to manufacture a diffusion plate or performing high-temperature multi-layer coextrusion on the quantum dot material (the quantum dot material may be distributed in one layer or in different layers).
Specifically, the bonding surface of the quantum dot diffusion plate layer 13 facing the adhesive layer 12 may have a mirror structure, or a protrusion 131 may be provided on the bonding surface. The protrusion 131 is preferably provided, and as shown in fig. 2, there are a plurality of protrusions 131, and the plurality of protrusions 131 can cover the whole adhering surface. The protrusions 131 have various structures, and the structure of the protrusions 131 includes at least one of a striped prism structure, a quadrangular frustum structure and a sand structure, wherein the sand structure includes an irregular medium sand structure or an irregular fine sand structure, and the embodiment takes the quadrangular frustum structure as an example (the protrusions 131 shown in fig. 2 are quadrangular frustum structures). When the attaching surface is provided with the plurality of protrusions 131, a plurality of grooves are formed between the protrusions 131, the adhesive layer 12 is completely attached or partially attached to the protrusions 131, wherein the complete attachment means that the adhesive layer 12 is seamlessly attached to the protrusions 131 without gaps, and the adhesive layer 12 is filled in the grooves between the protrusions 131; the partial bonding means that the bonding layer 12 is bonded to the upper portions of the protrusions 131, the bonding layer 12 is not filled in the grooves between the protrusions 131 or is filled in the grooves, and a certain gap is formed between the bonding layer 12 and the quantum dot diffusion plate layer 13, but it should be noted that the partial bonding requires a certain bonding between the bonding layer 12 and the quantum dot diffusion plate layer 13 and ensures a certain bonding strength, and the bonding layer 12 can effectively bond the optical film layer 11 and the quantum dot diffusion plate layer 13. The existence of the protrusion 131 enables the light traveling route to be corrected, so that the light exits the optical film composite quantum dot plate 1 in the front face, thereby improving the display effect of the screen.
Note that, when the projection 131 is present, the thickness of the quantum dot diffusion plate layer 13 refers to the minimum thickness among all the thicknesses thereof, and the thickness of the adhesive layer 12 refers to the minimum thickness among all the thicknesses thereof.
Specifically, the protrusions 131 are continuously or intermittently distributed on the quantum dot diffusion plate layer 13, and may be uniformly distributed, preferably, the arrangement density of the protrusions 131 gradually decreases from the center of the quantum dot diffusion plate layer 13 to the outside, that is, the spacing distance between adjacent protrusions gradually distributed from the center of the quantum dot diffusion plate layer 13 to the outside is smaller, the arrangement density of the edge portion is large, the optical diffusibility is stronger, more effective diffusion may be performed on the quantum dot diffusion plate layer 13, the arrangement density of the protrusions 131 is reasonably designed according to the degree of the required diffusion, the overall diffusibility of the quantum dot diffusion plate layer 13 is improved, and the balance of the visual effect color gamut of the display panel is ensured.
Specifically, the heights of the protrusions 131 can be the same, preferably, the heights of the protrusions 131 are gradually increased outwards from the center of the quantum dot diffusion plate layer 13, particularly when the protrusions 131 are continuously distributed, the heights of the protrusions 131 are adjusted, so that the protrusions at the edge parts have higher heights, the optical diffusibility is stronger, the quantum dot diffusion plate layer 13 can be more effectively diffused, the heights of the protrusions 131 are reasonably designed according to the degree of diffusion required, the overall diffusibility of the quantum dot diffusion plate layer 13 is improved, and the balance of the visual effect color gamut of the display panel is ensured.
The optical film composite quantum dot plate provided by the embodiment replaces the type of the film in the optical film layer according to the application of the optical film composite quantum dot plate, and endows the optical film composite quantum dot plate with different functions. Optics rete 11 and quantum dot diffusion sheet layer 13 are located bond line 12 relative upper and lower face respectively, quantum dot diffusion sheet layer 13 is owing to add the quantum dot material, make the blue light or the purple light that kick into in quantum dot diffusion sheet layer 13 arouse the mixed quantum dot of green red or green quantum dot material in the quantum dot diffusion sheet layer 13, mix for white light and shine in optics rete 11, better through protruding 131 structure (or particle structure or reflective polarisation structure or the material of passing through blue light or anti-blue light material) in the optics rete 11, further improve the visual effect colour gamut of whole panel, obtain better color effect, optics membrane composite quantum dot board improves the panel efficiency, improve module assembly efficiency, save the manpower, the environmental protection.
On the basis of the foregoing embodiments, this embodiment further provides a backlight module, including the optical film composite quantum dot plate 1 described in any of the foregoing embodiments, further including a liquid crystal panel 2 and a light source 3, where the optical film composite quantum dot plate 1 is located between the liquid crystal panel 2 and the light source 3, a light exit side (a light exit side in this embodiment) of the light source 3 faces a light entrance side (a light entrance side in this embodiment) of the optical film composite quantum dot plate 1, and a light exit side (a light exit side in this embodiment) of the optical film composite quantum dot plate 1 faces the light entrance side (a light entrance side in this embodiment) of the liquid crystal panel 2.
The light source 3 includes two embodiments, and the optical film composite quantum dot plate 1 is applied to a direct type or side type backlight module:
in the first embodiment, referring to fig. 3, the light source 3 includes an LED lamp 31, and the optical film composite quantum dot plate 1 is located between the LED lamp 31 and the liquid crystal panel 2; when the optical film composite quantum dot plate 1 of the embodiment is matched with a direct type backlight module, the optical film composite quantum dot plate is placed above the LED lamp 31 and below the liquid crystal panel 2; blue light is emitted from the LED lamp 31, green/red quantum dots are excited to emit light and are mixed into white light or the LED lamp emits purple light, green quantum dots are excited to emit light and are mixed into white light, the white light is reflected/diffused by the quantum dot plate to enable the light to be uniformly distributed on the plate surface of the whole quantum dot diffusion plate layer 13 and enters the optical film layer 11, and the light passes through the special structure of the optical film layer 11 such as the protrusion 131 of the prism structure, so that the light is corrected and emitted from the front side, and the screen display effect is improved.
In the second embodiment, referring to fig. 4, the light source 3 includes an LED lamp 31, a light guide plate 32 and a reflection plate 33, the LED lamp 31 is located on the light guide plate 32, the optical film composite quantum dot plate 1 is located between the light guide plate 32 and the liquid crystal panel 2, the reflection plate 33 is located on a side of the light guide plate 32 away from the optical film composite quantum dot plate 1, the LED lamp 31 is located on a side 321 of the light guide plate 32, and light emitted from the LED lamp 31 enters the light guide plate 32 through the side 321; when the optical film composite quantum dot plate 1 of the embodiment is matched with the lateral backlight module, the optical film composite quantum dot plate is placed above the light guide plate 32 and below the liquid crystal panel 2; blue light is emitted from the side LED lamp 31 and enters the light guide plate 32, light is uniformly emitted from the front side through the refraction of the mesh points of the light guide plate 32 and the reflection of the bottom reflecting plate 33, and enters the quantum dot diffusion plate layer 13 of the optical film composite quantum dot plate 1, green/red quantum dots are excited to emit light and are mixed into white light or the LED lamp 31 emits purple light, the green quantum dots are excited to emit light and are mixed into white light, the white light is uniformly distributed on the surface of the whole quantum dot diffusion plate layer 13 through the refraction/diffusion effect of the quantum dot plate and enters the optical film layer 11, and the light passes through the special structure of the optical film layer 11, such as the protrusion 131 of the prism structure, so that the light is corrected to be emitted from the front side, and the screen display effect is.
The optical film composite quantum dot plate 1 described in this embodiment should be adapted to the chromaticity of the LED lamp 31 when in use, and according to the quantum dot material type (green quantum dot or green + red quantum dot, and factors such as quantum dot material concentration) used in the optical film composite quantum dot plate 1 of this embodiment, the LED lamp beads and the arrangement mode of blue light (440nm to 480nm) or violet light (610nm to 640nm) are adapted appropriately, so that the backlight display effect is optimal. The quantity of the purple light LED lamps and the quantity of the green light LED lamps are set according to the brightness requirement, and are better more than 10.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.
Claims (10)
1. The optical film composite quantum dot plate is characterized by comprising an optical film layer (11), an adhesive layer (12) and a quantum dot diffusion plate layer (13), wherein the adhesive layer (12) is located between the optical film layer (11) and the quantum dot diffusion plate layer (13), and the adhesive layer (12) is suitable for bonding and fixing the optical film layer (11) and the quantum dot diffusion plate layer (13) and forming a three-layer plate-shaped structure.
2. The optical film composite quantum dot plate according to claim 1, wherein the quantum dot diffusion plate layer (13) is provided with a plurality of protrusions (131) at a bonding surface facing the adhesive layer (12), and the structure of the protrusions (131) includes at least one of a striped prism structure, a quadrangular frustum structure and a sand grain structure; the protrusions (131) are adapted to fully or partially engage the adhesive layer (12).
3. The optical film composite quantum dot plate of claim 1, wherein the optical film layer (11) comprises at least one of a brightness enhancement film, a diffusion film, a POP composite film, a DOP composite film, a DBEF film, a blue-transmitting film and a blue-reflecting film.
4. The optical film composite quantum dot plate of claim 1, wherein the adhesive layer (12) comprises one or a combination of two of a UV resin glue layer and an organic acrylic glue layer.
5. The optical film composite quantum dot plate of any one of claims 2-4, wherein the bonding layer (12) is uniformly distributed between the optical film layer (11) and the quantum dot diffusion plate layer (13).
6. The optical film composite quantum dot plate of claim 2, wherein the arrangement density of the protrusions (131) distributed from the center of the quantum dot diffusion plate layer (13) to the outside is gradually increased.
7. The optical film composite quantum dot plate of claim 2, wherein the height of the protrusions (131) distributed outward from the center of the quantum dot diffusion plate layer (13) is gradually increased.
8. A backlight module, comprising the optical film composite quantum dot plate (1) as claimed in any one of claims 1 to 7, further comprising a liquid crystal panel (2) and a light source (3), wherein the optical film composite quantum dot plate (1) is located between the light source (3) and the liquid crystal panel (2), the light exit side of the light source (3) faces the light entrance side of the optical film composite quantum dot plate (1), and the light exit side of the optical film composite quantum dot plate (1) faces the light entrance side of the liquid crystal panel (2).
9. The backlight module according to claim 8, wherein the light source (3) comprises an LED lamp (31), and the optical film composite quantum dot plate (1) is located between the LED lamp (31) and the liquid crystal panel (2).
10. The backlight module according to claim 8, wherein the light source (3) comprises an LED lamp (31), a light guide plate (32), and a reflective plate (33), the OCP (1) is located between the light guide plate (32) and the LC panel (2), the reflective plate (33) is located on a side of the light guide plate (32) facing away from the OCP (1), the LED lamp (31) is located on a side surface (321) of the light guide plate (32), and light emitted from the LED lamp (31) is suitable for entering the light guide plate (32) from the side surface (321).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020365252.5U CN211878386U (en) | 2020-03-20 | 2020-03-20 | Optical film composite quantum dot plate and backlight module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020365252.5U CN211878386U (en) | 2020-03-20 | 2020-03-20 | Optical film composite quantum dot plate and backlight module |
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| CN211878386U true CN211878386U (en) | 2020-11-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113947996A (en) * | 2021-09-28 | 2022-01-18 | 常州亚玛顿股份有限公司 | Backlight module |
| CN114627750A (en) * | 2022-03-22 | 2022-06-14 | 广州华星光电半导体显示技术有限公司 | Backlight module and display device |
| CN114627750B (en) * | 2022-03-22 | 2024-04-26 | 广州华星光电半导体显示技术有限公司 | Backlight module and display device |
-
2020
- 2020-03-20 CN CN202020365252.5U patent/CN211878386U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113947996A (en) * | 2021-09-28 | 2022-01-18 | 常州亚玛顿股份有限公司 | Backlight module |
| CN113947996B (en) * | 2021-09-28 | 2024-03-26 | 常州亚玛顿股份有限公司 | Backlight module |
| CN114627750A (en) * | 2022-03-22 | 2022-06-14 | 广州华星光电半导体显示技术有限公司 | Backlight module and display device |
| CN114627750B (en) * | 2022-03-22 | 2024-04-26 | 广州华星光电半导体显示技术有限公司 | Backlight module and display device |
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Denomination of utility model: An optical film composite quantum dot board and backlight module Effective date of registration: 20231007 Granted publication date: 20201106 Pledgee: China Merchants Bank Co.,Ltd. Nanjing Branch Pledgor: NANTONG CHUANGYIDA NEW MATERIAL CO.,LTD. Registration number: Y2023980059957 |