CN216718739U - Backlight framework with nanocrystalline light homogenizing film and display device - Google Patents
Backlight framework with nanocrystalline light homogenizing film and display device Download PDFInfo
- Publication number
- CN216718739U CN216718739U CN202123151780.4U CN202123151780U CN216718739U CN 216718739 U CN216718739 U CN 216718739U CN 202123151780 U CN202123151780 U CN 202123151780U CN 216718739 U CN216718739 U CN 216718739U
- Authority
- CN
- China
- Prior art keywords
- nanocrystalline
- light
- light emitting
- film
- backlight
- 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
- 238000009792 diffusion process Methods 0.000 claims abstract description 38
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000012528 membrane Substances 0.000 claims description 22
- 238000004020 luminiscence type Methods 0.000 claims description 14
- 238000009499 grossing Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000002096 quantum dot Substances 0.000 claims description 11
- 239000002159 nanocrystal Substances 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 7
- 230000000737 periodic effect Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 description 46
- 230000000694 effects Effects 0.000 description 7
- 230000001965 increasing effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
Landscapes
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The utility model discloses a backlight framework with a nanocrystalline light homogenizing film, which comprises a light emitting unit, a diffusion film/plate and a light homogenizing film attached between the light emitting unit and the diffusion film/plate, wherein the thickness of the light homogenizing film is 0.1-1mm, the light homogenizing film comprises a nanocrystalline substrate body, one surface of the nanocrystalline substrate body, which is far away from the light emitting unit, is provided with a dentate structure, the dentate structure comprises a plurality of rack-shaped bulges which are arranged in parallel, the cross section of each rack-shaped bulge is approximately arranged in a triangular shape, the vertex angle of the triangular shape is 60-90 degrees, and one surface of the nanocrystalline substrate body, which faces the light emitting unit, is provided with periodically arranged bulges. The utility model at least comprises the following advantages: the diffusion capability of the diffusion film/plate can be greatly enhanced under the condition of a certain thickness of the backlight framework, and the lamp shadow can be effectively eliminated.
Description
Technical Field
The utility model relates to the technical field of backlight, in particular to a backlight framework with a nanocrystalline dodging film and a display device.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
The existing diffusion film/board of the backlight board usually adopts the conventional diffusion film/board with diffusion function, and the base material (PET or PC and other materials) is doped with diffusion particles (organic matters), so that when light propagates through the transparent base material, the light is refracted and scattered, and the light is homogenized, thereby achieving the effect of diffusing the light by the film, and shielding the light shadow of a lamp panel to a certain degree;
the traditional backlight plate diffusion film/plate diffuses light in a single mode, the diffusion capacity is limited under the condition of unit thickness, the existing backlight framework scheme has limitation on the thickness, and the diffusion function cannot be increased by thickening the diffusion plate. If the thickness is constant, the diffusion capability of the diffusion film/plate under the thickness condition needs to be improved, so as to achieve the purpose of completely shielding the lamp shadow.
It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the utility model.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a backlight framework with a nanocrystalline light homogenizing film and a display device, which can greatly enhance the diffusion capability of a diffusion film/plate under the condition of certain thickness of the backlight framework and effectively eliminate lamp shadows.
In order to solve the technical problem, the utility model provides a backlight framework with a nanocrystal light homogenizing film, which comprises a light emitting unit, a diffusion film/plate and a light homogenizing film attached between the light emitting unit and the diffusion film/plate, wherein the thickness of the light homogenizing film is 0.1-1mm, the light homogenizing film comprises a nanocrystal substrate body, one surface of the nanocrystal substrate body, which is far away from the light emitting unit, is provided with a dentate structure, the dentate structure comprises a plurality of rack-shaped bulges which are arranged in parallel, the cross section of each rack-shaped bulge is approximately arranged in a triangular shape, the vertex angle of the triangular shape is 60-90 degrees, and one surface of the nanocrystal substrate body, which faces the light emitting unit, is provided with periodically arranged bulges.
Furthermore, a quantum dot film and at least one layer of prism film are sequentially attached to one side of the diffusion film/plate, which is away from the light homogenizing film.
Further, the prism rotation angle α of the prism film is 70 ° ± 5 °.
Further, the light-emitting unit comprises a substrate, a light-emitting element attached to the substrate, and a cover plate for protecting the substrate and the light-emitting element, wherein the light-emitting element is any one of a light-emitting lamp bead, a solid crystal light-emitting chip or a patch light-emitting chip.
Furthermore, the substrate is made of any one of an MCPCB material, an FR4 material, a BT frit, or a glass substrate.
Further, the cross section of the convex part is in an arc shape, a tooth shape or a combination of the arc shape and the tooth shape.
Further, the width of the base of the cross-section triangle of the tooth-shaped structure is 0.15-0.4 times of the thickness of the dodging film.
Further, the ratio of the height to the width of the convex part ranges from 0.1 to 5.
Further, the period length of the periodically arranged convex parts is 1 micron-5 mm, and the height of the convex parts is 1 micron-5 mm.
A display device comprises a display panel and the backlight framework with the nanocrystalline light homogenizing film, wherein the display panel is arranged on the light emitting side of the backlight framework.
By means of the technical scheme, the utility model has the following beneficial effects:
1. the backlight framework adopts the light homogenizing film with the nano-crystal, so that light emitted by the light emitting unit is refracted and scattered for the first time when passing through the protrusions which are periodically arranged, and is refracted and scattered for the second time when passing through one side of the tooth-shaped structure of the light homogenizing film, thereby obviously increasing the diffusion effect, further enabling the light emitted by the light emitting unit to be more uniform after passing through the backlight framework, greatly enhancing the diffusion capability of the diffusion film/plate on the premise of ensuring that the thickness of the backlight framework is not increased, and effectively eliminating lamp shadows.
2. The backlight framework of the utility model adopts the light homogenizing film with the nanometer crystal, and the setting mode of the whole framework adopts: even membrane of shining sets up between luminescence unit and diffusion barrier/board, one side of deviating from even membrane at the diffusion barrier, direction along the diffusion barrier/board of gradually far away sets gradually quantum dot membrane and prism membrane, can make the framework of being shaded of this application realize under the condition that thickness does not increase, greatly strengthen the diffusion capacity of diffusion barrier/board, the effectual lamp shadow that eliminates, can make the luminous point interval of the luminescence unit of equal area enlarge, thereby can reduce the setting of luminous point in the luminescence unit, moreover, this application can further promote the diffusion capacity through deviating from the luminescence unit setting with the dentate structure of even membrane of shining, thereby further realize the elimination to the lamp shadow.
3. The backlight framework of the utility model adopts the light homogenizing film with the nanometer crystal, and the prism film with the light intensifying function is arranged, so that after the light emitted by the light emitting unit passes through the prism film, only the light of the incident light within a certain angle range can be emitted through the refraction function, the rest light is reflected back to the light emitting unit by the edge of the prism film because the incident light does not meet the refraction condition, and is emitted again under the action of the reflector plate in the light emitting unit, thus, the light in the light emitting source is continuously recycled under the action of the prism film structure, and the light originally towards each direction is controlled within the range of the angle alpha after passing through the prism film, thereby achieving the effect of enhancing the axial brightness.
Drawings
FIG. 1 is a schematic diagram of a conventional backlight architecture;
FIG. 2 is a schematic diagram of a backlight architecture with a nanocrystalline smoothing film according to the present invention;
fig. 3 is a schematic structural view of a light spreading film in an embodiment of the present invention.
Wherein:
1. a light emitting unit; 2. homogenizing the film; 201. a nanocrystalline substrate body; 202. a boss portion; 203. a tooth-shaped structure; 3. diffusion membranes/plates; 4. a quantum dot film; 5. a prismatic film.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, in the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is considered as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Referring to fig. 1-3, a backlight structure with a nanocrystal light homogenizing film according to a preferred embodiment of the present disclosure includes a light emitting unit 1, a diffusion film/plate 3, and a light homogenizing film 2 attached between the light emitting unit 1 and the diffusion film/plate 3, in order to make the light emitted from the light emitting unit 1 more uniform after passing through the backlight structure, greatly enhance the diffusion capability of the diffusion film/plate 3 without increasing the thickness of the backlight structure, and effectively eliminate the light shadows, the thickness of the light homogenizing film 2 of the present disclosure is preferably 0.1-1mm, the light homogenizing film 2 includes a nanocrystal substrate body 201, one surface of the nanocrystal substrate body 201 away from the light emitting unit 1 has a tooth-like structure 203, the tooth-like structure 203 includes a plurality of rack-like protrusions arranged in parallel, each rack-like protrusion has a substantially triangular cross section, the apex angle of the triangle is 60-90 degrees, the surface of the nanocrystalline substrate body facing the light-emitting unit is provided with the raised parts 202 which are periodically arranged, the tooth-shaped structure 203 deviates from the light-emitting unit 1, a better diffusion effect can be obtained, and the tooth-shaped structure 203 can limit light at a required angle, so that the diffusion capability can be greatly improved within a required angle range, and the lamp shadow can be further eliminated.
Specifically, this application diffusion barrier/board 3 deviates from even light membrane 2's one side has still laminated quantum dot membrane 4 and at least one deck prism membrane 5 in proper order, quantum dot membrane 4 of this application is red + green quantum dot membrane 4 piece, sneak into red + green quantum dot in the diaphragm material, luminescence unit 1 is when sending the blue light, the blue light is propagated through quantum dot membrane 4, with red + green quantum dot combined action in the diaphragm, can produce white light, in other embodiments, when luminescence unit sends white light, the quantum dot membrane in the framework of being shaded can not need the installation, luminescence unit of this application makes it luminous by the drive circuit drive.
The utility model provides a prism angle of rotation alpha of prism membrane 5 is 70 +/-5, the light that luminescence unit 1 sent is behind through prism membrane 5, only the light of incident light in certain angular range can pass through refraction outgoing, remaining light is reflected back luminescence unit 1 by prism membrane 5 edge because of unsatisfied refraction condition, again by the reflector plate effect in luminescence unit 1 and reemit, thus, light in the light emitting source is under the effect of prism membrane 5 structure, continuous recycling, originally to the light of all directions after passing through prism membrane 5, controlled at angle alpha: in the range of 70 +/-5 degrees, thereby achieving the effect of axial brightness enhancement.
The light-emitting unit 1 of this application includes the base plate, the laminating is in light-emitting component on the base plate and right the base plate and light-emitting component carries out the cover plate of protection, light-emitting component be in luminous lamp pearl, solid brilliant light-emitting chip or the luminous chip of paster arbitrary one. The substrate is made of any one of MCPCB material, FR4 material, BT material or glass substrate.
For the light uniform film 2 of the present application, the cross-sectional shape of the protruding portion 202 is an arc shape, a tooth shape or a combination of the arc shape and the tooth shape, and the cross-sectional shape of the protruding portion 202 is a semi-circle shape in this embodiment, and may be a part of a semi-circle shape, a semi-ellipse shape, a part of a semi-ellipse shape, a triangle shape, a part of a trapezoid shape or a part of a trapezoid shape in other embodiments. The width of the bottom side of the triangular section of the tooth-shaped structure 203 is 0.15-0.4 times of the thickness of the light homogenizing film 2. The ratio of the height to the width of the raised portion 202 is in the range of 0.1 to 5, and outside this range, a good optical control output is not achieved. The periodic length of the periodically arranged convex portions 202 is 1 micrometer to 5 millimeters, and the periodic length mentioned herein represents the sum of the length of the convex portions 202 in the arrangement direction and the distance between two adjacent convex portions 202, and the height of the convex portions 202 is 1 micrometer to 5 millimeters.
The application provides a display device, including display panel and foretell structure in a poor light that has the even optical film 2 of nanocrystalline, display panel sets up the light-emitting side of structure in a poor light.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the utility model is all within the protection scope of the utility model. The protection scope of the utility model is subject to the claims.
Claims (10)
1. The utility model provides a framework in a poor light with membrane is spared to nanocrystalline, its characterized in that, including luminescence unit, diffusion barrier/board and laminate in luminescence unit with the even membrane between the diffusion barrier/board, even membrane thickness is 0.1-1mm, even membrane includes nanocrystalline substrate body, nanocrystalline substrate body deviates from luminescence unit's one side has dentate structure, dentate structure include a plurality of parallel arrangement's of each other rack form protruding, every the bellied cross section of rack form roughly is triangle-shaped and arranges, the apex angle of triangle-shaped is 60-90, nanocrystalline substrate body orientation luminescence unit's one side has the bellying of periodic arrangement.
2. The backlight architecture with a nanocrystalline smoothing film according to claim 1, wherein a quantum dot film and at least one prism film are further laminated in sequence on the side of said diffuser film/plate facing away from said smoothing film.
3. The backlight architecture with a nanocrystalline smoothing film according to claim 2, wherein the prism angle α of the prism film is 70 ° ± 5 °.
4. The backlight framework with the nanocrystal smoothing film as claimed in claim 1, wherein the light emitting unit comprises a substrate, a light emitting element attached to the substrate, and a cover plate for protecting the substrate and the light emitting element, wherein the light emitting element is any one of a light emitting lamp bead, a die bonding light emitting chip or a patch light emitting chip.
5. The backlight architecture with a nanocrystalline smoothing film according to claim 4, wherein the substrate is made of any one of MCPCB material, FR4 material, BT material or glass substrate.
6. The backlight architecture with a nanocrystalline smoothing film according to claim 1, wherein the cross-sectional shape of the protrusions is an arc, a tooth shape, or a combination of an arc and the tooth shape.
7. The backlight architecture with a nanocrystalline smoothing film according to claim 1, wherein the width of the base of the cross-sectional triangle of the tooth-like structure is 0.15-0.4 times the thickness of the smoothing film.
8. The backlight architecture with a nanocrystalline smoothing film according to claim 1, wherein the ratio of the height to the width of the protrusions ranges from 0.1 to 5.
9. The backlight architecture with a nanocrystalline smoothing film according to claim 1, wherein the periodic length of the periodically arranged protrusions is 1 micrometer to 5 millimeters, and the height of the protrusions is 1 micrometer to 5 millimeters.
10. A display device comprising a backlight architecture with a nanocrystalline smoothing film according to any one of claims 1 to 9 and a display panel disposed on a light exit side of the backlight architecture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123151780.4U CN216718739U (en) | 2021-12-15 | 2021-12-15 | Backlight framework with nanocrystalline light homogenizing film and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123151780.4U CN216718739U (en) | 2021-12-15 | 2021-12-15 | Backlight framework with nanocrystalline light homogenizing film and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216718739U true CN216718739U (en) | 2022-06-10 |
Family
ID=81883846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123151780.4U Active CN216718739U (en) | 2021-12-15 | 2021-12-15 | Backlight framework with nanocrystalline light homogenizing film and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216718739U (en) |
-
2021
- 2021-12-15 CN CN202123151780.4U patent/CN216718739U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5079675A (en) | Surface illuminating apparatus | |
| US8047697B2 (en) | Backlight | |
| TWI235807B (en) | Light guiding board, and lighting device, plane light source device and display device using the light guiding board | |
| JP4185721B2 (en) | Illumination device and liquid crystal display device | |
| JP3931070B2 (en) | Planar light source device and liquid crystal display device including the same | |
| TWM317024U (en) | Brightness improved structure of lateral backlight for LCD | |
| CN108983495A (en) | A kind of backlight module and display device | |
| JP4198975B2 (en) | Illumination device, light guide, and liquid crystal display device | |
| CN109557719B (en) | Direct type zero OD backlight structure with semi-reflective and semi-transparent light guide plate | |
| WO2018201538A1 (en) | Led light strip and backlight assembly | |
| JP2001235606A (en) | Optical member having reflective function and transmissive function | |
| JP4485026B2 (en) | Light guiding unit | |
| CN216718739U (en) | Backlight framework with nanocrystalline light homogenizing film and display device | |
| JPH0442675B2 (en) | ||
| CN209707723U (en) | A kind of backlight module and liquid crystal display | |
| CN214845858U (en) | Blast panel and blast device | |
| CN113050328B (en) | Front module and display device | |
| TWI275874B (en) | Light guiding device and backlight module using the same | |
| CN210465995U (en) | Reflection type projection screen | |
| CN210294754U (en) | Backlight source structure with inclined light inlet | |
| CN108398829A (en) | Backlight module and preparation method thereof based on quantum dot | |
| EP1784688B1 (en) | Rear projection screen | |
| CN217718370U (en) | Composite prism sheet structure, light reflecting structure, backlight module and liquid crystal display | |
| US20060066773A1 (en) | Vertical backlight module of LCD television | |
| CN115639635B (en) | Optical film with micro-nano structure and light homogenizing film group |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240522 Address after: 215300, 2nd Floor, Building 002, No. 26 Jinyan Road, Dianshanhu Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Kunshan Zhongshengwei Entrepreneurship Investment Partnership Enterprise (Limited Partnership) Country or region after: China Address before: Room 418b-74, building 6, No. 25, Lushan Road, high tech Zone, Suzhou, Jiangsu 215010 Patentee before: Suzhou ouyidi Semiconductor Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20240619 Address after: Room JT4666, 3rd Floor, No. 5358 Huyi Road, Jiading District, Shanghai, 201800 Patentee after: Shanghai Weida Guangxun Semiconductor Technology Co.,Ltd. Country or region after: China Address before: 215300, 2nd Floor, Building 002, No. 26 Jinyan Road, Dianshanhu Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Kunshan Zhongshengwei Entrepreneurship Investment Partnership Enterprise (Limited Partnership) Country or region before: China |
|
| TR01 | Transfer of patent right |