CN108681092B - Projection type display device - Google Patents
Projection type display device Download PDFInfo
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- CN108681092B CN108681092B CN201810542577.3A CN201810542577A CN108681092B CN 108681092 B CN108681092 B CN 108681092B CN 201810542577 A CN201810542577 A CN 201810542577A CN 108681092 B CN108681092 B CN 108681092B
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- film layer
- projected
- display device
- display screen
- prism
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The invention discloses a projection type display device, comprising: a film layer to be projected and a display screen; wherein, the film layer to be projected is used for being pasted on a substrate needing to be projected; the surface of the display screen is provided with a prism film layer, and the prism film layer is used for enabling light emitted by the display screen to be emitted to the film layer to be projected according to a preset direction; the polarization direction of the light emitted by the display screen is vertical to the polarization direction of the film layer to be projected. This display device combines the display screen through will treating to throw the rete and paste on the substrate that needs throw, can realize throwing the formula demonstration, and extensive applicability is extensive, and simple structure, and the display effect is better.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a projection type display device.
Background
With the continuous development of science and technology, various display devices have been widely applied to daily life, work and industry of people, and bring great convenience to the life of people.
Depending on the environment and scene of application, and the needs of customers, diversified display devices and display technologies are required, but the current display devices and display technologies have not kept up with the needs, and new display devices and better display technologies are required.
Therefore, how to provide a novel display device is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In order to solve the above problems, the present invention provides a novel display device, which has wide applicability and good display effect.
In order to achieve the purpose, the invention provides the following technical scheme:
a projection-type display device, the display device comprising: a film layer to be projected and a display screen;
wherein, the film layer to be projected is used for being pasted on a substrate needing to be projected; the surface of the display screen is provided with a prism film layer, and the prism film layer is used for enabling light emitted by the display screen to be emitted to the film layer to be projected according to a preset direction;
the polarization direction of the light emitted by the display screen is vertical to the polarization direction of the film layer to be projected.
Preferably, in the display device, the film layer to be projected is a reflective polarizer film layer.
Preferably, in the above display device, the prism film layer includes: the UV film comprises a base film layer and a UV adhesive film layer arranged on the base film layer;
the UV adhesive film layer is a film layer formed by a plurality of prism structures arranged in an array.
Preferably, in the above display device, the triangular prism structure has a vertex angle ranging from 0 ° to 180 °, inclusive.
Preferably, in the above display device, the height of the triangular prism structure in the first direction is in a range of 0.1um to 50um, inclusive, wherein the first direction is perpendicular to the substrate film layer.
Preferably, in the display device, the material of the substrate film layer is a cyclic olefin polymer material or a cellulose triacetate material or a polybutylene naphthalate material.
Preferably, in the display device, an included angle between the film layer to be projected and the display screen is in a range of 0 ° to 180 °, excluding end points.
As can be seen from the above description, the present invention provides a projection type display device, including: a film layer to be projected and a display screen; wherein, the film layer to be projected is used for being pasted on a substrate needing to be projected; the surface of the display screen is provided with a prism film layer, and the prism film layer is used for enabling light emitted by the display screen to be emitted to the film layer to be projected according to a preset direction; the polarization direction of the light emitted by the display screen is vertical to the polarization direction of the film layer to be projected.
This display device combines the display screen through will treating to throw the rete and paste on the substrate that needs throw, can realize throwing the formula demonstration, and extensive applicability is extensive, and simple structure, and the display effect is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a projection display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a prism film layer according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another prism film layer according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another prism film layer according to an embodiment of the present invention.
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.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a projection display device according to an embodiment of the present invention, where the display device includes: a film layer 11 to be projected and a display screen 12.
Wherein, the film layer to be projected 11 is used for being stuck on a substrate to be projected; the surface of the display screen 12 is provided with a prism film layer 13, and the prism film layer 13 is used for enabling the light emitted by the display screen 12 to be emitted to the film layer 11 to be projected according to a preset direction.
The polarization direction of the light emitted by the display screen 12 is perpendicular to the polarization direction of the film layer to be projected 11.
Further, the film layer 11 to be projected is a reflective polarizer film layer.
Optionally, the film layer 11 to be projected is an APF (advanced polarizer film) film layer, the APF film layer is a film layer formed by stacking PEN (Polyethylene Naphthalate, polybutylene Naphthalate) and CoPEN (70-Naphthalate/30-terephthalate copolymer, 70/30 copolyester) two organic materials, the thickness of the film layer is selected to be 26um, there are 800 organic stacked layers based on the thickness, the film layers are overlapped with each other with high and low refractive indexes, and the thickness is precisely controlled by an extrusion and stretching process, so that a high reflectivity can be realized, and by stretching the film layer, the performance of the polarizer is realized, so that only light rays with the same direction as the stretching direction of the film layer can pass through the polarizer.
Further, as shown in fig. 2, the prism film layer 13 includes: a base film layer 21 and a UV glue film layer 22 disposed on the base film layer 21;
the UV glue film layer 22 is a film layer formed by a plurality of prism structures arranged in an array.
Optionally, the material of the substrate film layer 21 is a cop (cyclo Olefin polymer) cyclic Olefin polymer material, a TAC (Tri-ethyl Cellulose) triacetate material, a pen (polyethylene naphthalate) polybutylene naphthalate material, or the like, which are films without retardation, that is, the phase of light passing through the substrate film layer is not changed, and it should be noted that the material is not limited in the embodiment of the present invention.
Optionally, the UV adhesive layer 22 is formed by rolling the UV adhesive layer to form a film layer with a prism microstructure according to a certain arrangement sequence, wherein the vertex angle range of the prism structure is 0 ° to 180 °, end points are not included, and vertex angle edges of the prism structure are biased to a preset light emitting direction, as shown in fig. 3 and 4, the preset light emitting direction is not limited in the embodiment of the present invention and may be determined according to specific conditions.
Optionally, the height range of the triangular prism structure in the first direction is 0.1um-50um, including end point values, wherein the first direction is perpendicular to the substrate film layer, for example, the height of the triangular prism structure in the first direction is 5um or 10um or 22um or 35um, etc.
The prism film layer with the preset light emitting direction is attached to the display screen (the display screen with polarized emergent light) so as to increase the light emitting amount at a certain angle, and therefore the visual angle of the display screen is changed.
Since the light emitted from the display panel 12 is polarized light, and the polarized light passes through the prism film layer 13, the polarization direction of the polarized light is not changed after passing through the prism film layer 13 because the prism film layer 13 is a film layer having no retardation. The polarization direction of the polarized light of the APF is perpendicular to the polarization direction of the APF film to be projected, so that the polarized light projected onto the APF film to be projected is reflected by the APF film to be projected and enters the eyes of a user, the content opposite to the content on the display screen can be seen, the content on the display screen can be inverted by 180 degrees, and the user can see normal display content on the APF film to be projected, as shown by a letter A in figure 1.
Further, the included angle between the film layer 11 to be projected and the display screen 12 is in the range of 0 ° to 180 °, excluding end points, for example, the included angle between the film layer 11 to be projected and the display screen 12 is 50 ° or 90 ° or 130 °.
It should be noted that an included angle between the film layer 11 to be projected and the display screen 12 is not limited in the embodiment of the present invention, and may be adjusted according to a distance between the bottom edge of the display screen 12 and the bottom edge of the film layer to be projected of the APF and a preset light emitting direction of the prism film layer.
And the central axis of the film layer to be projected by the APF and the central axis of the display screen are not in the same plane, and the relative position of the film layer to be projected by the APF and the display screen can be adjusted according to the distance between the bottom edge of the display screen and the bottom edge of the film layer to be projected by the APF and the preset light-emitting direction of the prism film layer.
As can be seen from the above description, the display device can realize projection display only by attaching the APF film to be projected on the substrate to be projected, and the display device can be used as a projection screen, for example, a vehicle-mounted head-up display hud (head up display), and it should be noted that the substrate to which the APF film to be projected is attached may be curled.
Therefore, the projection type display device provided by the invention can realize projection type display by pasting the film layer to be projected on the substrate to be projected and combining the display screen, and has the advantages of wide applicability, simple structure and better display effect.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A projection type display device, characterized in that the display device comprises: a film layer to be projected and a display screen;
wherein, the film layer to be projected is used for being pasted on a substrate needing to be projected; the surface of the display screen is provided with a prism film layer, and the prism film layer is used for enabling light emitted by the display screen to be emitted to the film layer to be projected according to a preset direction;
the polarization direction of the light emitted by the display screen is vertical to the polarization direction of the film layer to be projected.
2. The display device of claim 1, wherein the film layer to be projected is a reflective polarizer film layer.
3. The display device of claim 1, wherein the prismatic film layer comprises: the UV film comprises a base film layer and a UV adhesive film layer arranged on the base film layer;
the UV adhesive film layer is a film layer formed by a plurality of prism structures arranged in an array.
4. A display device as claimed in claim 3, characterized in that the triangular prism structure has a vertex angle in the range of 0 ° -180 °, excluding end points.
5. A display device as claimed in claim 3, wherein the triangular prism structures have a height in the range of 0.1um-50um, inclusive, in a first direction, wherein the first direction is perpendicular to the substrate film layer.
6. The display device according to claim 3, wherein the material of the substrate film layer is a cyclic olefin polymer material or a cellulose triacetate material or a polybutylene naphthalate material.
7. A display device as claimed in claim 1, characterized in that the angle between the film layer to be projected and the display screen is in the range 0 ° -180 °, excluding end points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810542577.3A CN108681092B (en) | 2018-05-30 | 2018-05-30 | Projection type display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810542577.3A CN108681092B (en) | 2018-05-30 | 2018-05-30 | Projection type display device |
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| Publication Number | Publication Date |
|---|---|
| CN108681092A CN108681092A (en) | 2018-10-19 |
| CN108681092B true CN108681092B (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810542577.3A Active CN108681092B (en) | 2018-05-30 | 2018-05-30 | Projection type display device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111781999B (en) * | 2020-07-01 | 2022-08-23 | 京东方科技集团股份有限公司 | Folding display structure and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969719A (en) * | 2014-04-11 | 2014-08-06 | 京东方科技集团股份有限公司 | Triangular prism plate and display device |
| CN107329195A (en) * | 2017-08-08 | 2017-11-07 | 常州斯威克新材料科技有限公司 | A kind of reflective pad pasting of scratch-resistant high viscosity flexible photovoltaic and preparation method thereof |
| CN107797329A (en) * | 2016-09-02 | 2018-03-13 | 日东电工株式会社 | Optical component |
| CN208521087U (en) * | 2018-05-30 | 2019-02-19 | 信利光电股份有限公司 | A kind of display device of projection-type |
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2018
- 2018-05-30 CN CN201810542577.3A patent/CN108681092B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969719A (en) * | 2014-04-11 | 2014-08-06 | 京东方科技集团股份有限公司 | Triangular prism plate and display device |
| CN107797329A (en) * | 2016-09-02 | 2018-03-13 | 日东电工株式会社 | Optical component |
| CN107329195A (en) * | 2017-08-08 | 2017-11-07 | 常州斯威克新材料科技有限公司 | A kind of reflective pad pasting of scratch-resistant high viscosity flexible photovoltaic and preparation method thereof |
| CN208521087U (en) * | 2018-05-30 | 2019-02-19 | 信利光电股份有限公司 | A kind of display device of projection-type |
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| CN108681092A (en) | 2018-10-19 |
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