CN114545637A - Projection display device and vehicle with same - Google Patents
Projection display device and vehicle with same Download PDFInfo
- Publication number
- CN114545637A CN114545637A CN202210420409.3A CN202210420409A CN114545637A CN 114545637 A CN114545637 A CN 114545637A CN 202210420409 A CN202210420409 A CN 202210420409A CN 114545637 A CN114545637 A CN 114545637A
- Authority
- CN
- China
- Prior art keywords
- convex lens
- plano
- spherical
- light
- liquid crystal
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 46
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000009792 diffusion process Methods 0.000 claims description 19
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000010408 film Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- 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
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Instrument Panels (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
A projection display device and a vehicle with the same are provided, wherein the projection display device comprises a lamp source plate, a paraboloid plano-convex lens module, a spherical double-convex lens, a liquid crystal display module and a reflector. The light source plate is provided with a plurality of light sources, the paraboloid plano-convex lens module is provided with a plurality of paraboloid plano-convex lenses, and planes of the paraboloid plano-convex lenses face the light emitting sides of the light sources respectively. The spherical double convex lens and the lamp source plate are respectively positioned at two opposite sides of the paraboloid plano-convex lens module. The liquid crystal display module and the paraboloid plano-convex lens module are respectively positioned at two opposite sides of the spherical double convex lens. The light of the light source passes through the paraboloidal plano-convex lens, the spherical double-convex lens and the liquid crystal display module to form image light. The reflector is located on the light path of the image light, and the reflector reflects the image light to the transparent substrate, so that a virtual image with high uniformity and high luminance is generated.
Description
Technical Field
The present invention relates to a display technology, and more particularly, to a projection display apparatus and a vehicle having the same.
Background
The head-up display technology is a display technology commonly applied to aircraft, and the head-up means that a pilot can see important information required by the pilot without lowering the head. Heads-up displays were first presented on military aircraft to reduce the frequency with which pilots need to look down at the instruments, avoiding interruptions in attention and loss of Awareness of the state (status Awareness). Because the head-up display can improve the safety of flight and the convenience of display, therefore gradually widely used on civil aviation aircraft. Currently, a vehicle head-up display system is vigorously developed at home and abroad, and environmental information around an automobile is displayed through the vehicle-mounted head-up display system, so that the safety performance of automobile driving can be effectively improved.
The Picture Generation Unit (PGU) serves as a means for providing video and light sources in an integrated heads-up display system. The PGU is provided with a thin film transistor liquid crystal display (TFT LCD) screen, so that various pictures can be output, more meta information of a driver is provided, and the driving experience is improved. In addition, the backlight module provides a light source for the liquid crystal display screen, and mainly the luminance and the uniformity of the image brightness are the main judgment mechanisms. The traditional PGU uses a plurality of direct-type light emitting diode arrays to emit light because of high uniformity of the picture, and although the better uniformity is achieved, the whole power consumption is considerable, and the low light utilization efficiency is caused by directly using the light emitting diodes for irradiation.
Therefore, the present invention provides a projection display device and a vehicle having the same to solve the problems of the prior art.
Disclosure of Invention
The invention provides a projection display device and a vehicle with the same.
To achieve the above objective, the present invention provides a projection display device, which comprises a lamp panel, a parabolic plano-convex lens module, a spherical biconvex lens, a liquid crystal display module, and at least one reflector. The light source plate is provided with a plurality of light sources, and the paraboloidal plano-convex lens module is provided with a plurality of paraboloidal plano-convex lenses, wherein the planes of the paraboloidal plano-convex lenses respectively face the light emitting sides of the light sources. The spherical biconvex lens and the lamp source plate are respectively positioned at two opposite sides of the paraboloid plano-convex lens module. The liquid crystal display module and the paraboloid plano-convex lens module are respectively positioned at two opposite sides of the spherical double convex lens. The light emitted by the light source sequentially passes through the paraboloidal plano-convex lens of the paraboloidal plano-convex lens module, the spherical biconvex lens and the liquid crystal display module to form image light. The reflector is located on the light path of the image light, wherein the reflector reflects the image light to a transparent substrate, thereby generating a virtual image.
In an embodiment of the invention, the projection display apparatus further includes a hollow cylinder, a fixing member, a diffusion film, and a fixing clamp. The hollow cylinder is provided with a first opening and a second opening which are opposite to each other, the paraboloid plano-convex lens module is arranged in the hollow cylinder, the lamp source plate is arranged on the hollow cylinder to shield the first opening, and the light source is positioned in the hollow cylinder. The fixing piece is provided with a third opening penetrating through the fixing piece, the fixing piece is provided with a first side and a second side which are opposite to each other, the spherical double-convex lens is fixed on the first side of the fixing piece, and the spherical double-convex lens and the fixing piece are arranged in the hollow cylinder. The diffusion film is fixed on the second side of the fixing piece, and the spherical double-convex lens and the diffusion film cover the third opening. The fixing clamp is provided with a fourth opening penetrating through the fixing clamp, wherein the fixing clamp is fixed on the hollow column body so as to clamp the liquid crystal display module between the fixing clamp and the diffusion film and expose the liquid crystal display module through the fourth opening. The light rays sequentially pass through the spherical double-convex lens, the third opening, the second opening, the diffusion film, the liquid crystal display module and the fourth opening to form image light.
In an embodiment of the invention, the projection display device further includes a base having a receiving groove, the at least one reflector includes two reflectors, and the hollow cylinder and the two reflectors are located in the receiving groove.
In an embodiment of the invention, the transparent substrate is a windshield of an automobile.
In an embodiment of the invention, the light source board further includes a printed circuit board, and the light source is disposed on the printed circuit board.
In an embodiment of the invention, the horizontal axis and the vertical axis of the paraboloid of the paraboloidal plano-convex lens are both paraboloidal curves, and the curvature radii of the horizontal axis and the vertical axis are different.
In an embodiment of the invention, a vertical axis and a horizontal axis of the spherical surface of the spherical biconvex lens facing the liquid crystal display module are both spherical curves, and a vertical axis and a horizontal axis of the spherical surface of the spherical biconvex lens facing the paraboloidal plano-convex lens module are respectively a spherical curve and a straight line.
In an embodiment of the invention, the liquid crystal display module is tilted relative to the light source plate.
In one embodiment of the invention, the spherical lenticular lens is tilted with respect to the lamp source plate.
In an embodiment of the invention, the light source is a light emitting diode.
The present invention further provides a vehicle including a vehicle body and the projection display device, wherein the transparent substrate is a windshield disposed in a front frame of the vehicle body and serves as a projection medium.
Based on the above, the projection display device utilizes the parabolic plano-convex lens module and the spherical biconvex lens to achieve the display image effect with high uniformity and high luminance, and reduces the light-emitting angle to prevent light from diffusing in the device, thereby reducing stray light.
Drawings
Fig. 1 is a schematic diagram of a projection display device according to an embodiment of the present invention.
FIG. 2 is a top view of an embodiment of the present invention, a lamp panel, a parabolic plano-convex lens module, a spherical double-convex lens and a liquid crystal display module.
FIG. 3 is a side view of an embodiment of the present invention showing a structure of a lamp panel, a parabolic plano-convex lens module, a spherical double-convex lens and a liquid crystal display module.
FIG. 4 is an exploded view of the lamp panel, the parabolic plano-convex lens module, the hollow cylinder, the spherical bi-convex lens, the fixing member, the diffusion film, the liquid crystal display module and the fixing fixture according to one embodiment of the present invention.
FIG. 5 is a perspective view of a combination structure of a lamp panel, a parabolic plano-convex lens module, a hollow cylinder, a spherical biconvex lens, a fixing member, a diffusion film, a liquid crystal display module and a fixing clamp according to an embodiment of the invention.
Fig. 6 is a perspective view of a projection display device according to an embodiment of the present invention.
FIG. 7 is a simulation graph of horizontal viewing angle and vertical viewing angle according to the present invention.
FIG. 8 is a schematic view of an embodiment of a vehicle of the present invention.
Reference numerals:
1: projection display device 10: lamp source plate
100: light source 101: printed circuit board
11: parabolic plano-convex lens module 110: paraboloid plano-convex lens
12: spherical lenticular lens 13: liquid crystal display module
14: the reflection mirror 15: hollow column
150: first opening 151: second opening
16: the fixing member 160: third opening
17: diffusion film 18: fixing clamp
180: fourth opening 19: base seat
190: the accommodating groove 2: transparent substrate
3: vehicle 30 vehicle body
A. A': top edge B, B': side edge
Detailed Description
Embodiments of the invention are further illustrated by the following description in conjunction with the related drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts. In the drawings, the shape and thickness may be exaggerated for simplicity and convenience. It is to be understood that elements not specifically shown in the drawings or described in the specification are of a type well known to those of ordinary skill in the art. Many variations and modifications may be made by one of ordinary skill in the art in light of the above teachings.
When an element is referred to as being "on …," it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no other elements present between the two. As used herein, the term "and/or" includes any combination of one or more of the associated listed items.
Reference will now be made in detail to "one embodiment" or "an embodiment" of the present invention, which refers to a particular element, structure, or characteristic described in connection with at least one embodiment. Thus, the appearances of the phrase "one embodiment" or "an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The disclosure has been described with respect to specific examples, which are intended to be illustrative only, since various modifications and changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this disclosure and scope of the appended claims. Throughout the specification and claims, unless the context clearly dictates otherwise, the words "a" and "an" include the word "a" and "an" and "the" include "one or at least one" of the element or component. In addition, as used in this disclosure, the singular articles "a," "an," and "the" include plural referents or components unless the context clearly dictates otherwise. Also, as used in this description and throughout the claims that follow, the meaning of "in" may include "in" and "on" unless the content clearly dictates otherwise. The term (terms) used throughout the specification and claims has the ordinary meaning as commonly understood in the art, in the disclosure herein and in the specific disclosure herein, unless otherwise indicated. Certain terms used to describe the present disclosure are discussed below or elsewhere in this specification to provide additional guidance to the practitioner (practitioner) in describing the present disclosure. The use of examples anywhere throughout the specification, including any examples of words discussed herein, is intended merely to be illustrative, and certainly not to limit the scope or meaning of the disclosure or any exemplary words. Likewise, the present disclosure is not limited to the various embodiments set forth in this specification.
It is understood that as used herein, the terms "comprising," "including," "having," "containing," "including," and the like are open-ended, i.e., meaning including but not limited to. Moreover, not all objects, advantages, or features of the disclosure are necessarily to be achieved in any one embodiment or claimed herein. In addition, the abstract and the title of the invention are provided to assist the searching of the patent document and are not intended to limit the scope of the claims of the invention.
Unless specifically stated otherwise, conditional expressions or words, such as "can", "possibly" (result) "," perhaps (light) ", or" may ", are generally intended to convey that embodiments of the present invention have, but may also be interpreted as having, features, components, or steps that may not be required. In other embodiments, these features, components, or steps may not be required.
A projection display apparatus is described below, which uses a parabolic plano-convex lens module and a spherical biconvex lens to achieve a high uniformity and a high luminance of the display image, and reduces the light-emitting angle to prevent the light from diffusing in the device, thereby reducing the stray light.
Fig. 1 is a schematic diagram of a projection display device according to an embodiment of the invention, fig. 2 is a top view of a structure of a lamp panel, a parabolic plano-convex lens module, a spherical lenticular lens and a liquid crystal display module according to an embodiment of the invention, and fig. 3 is a side view of a structure of a lamp panel, a parabolic plano-convex lens module, a spherical lenticular lens and a liquid crystal display module according to an embodiment of the invention. Referring to fig. 1, 2 and 3, the projection display apparatus 1 includes a light source plate 10, a parabolic plano-convex lens module 11, a spherical double-convex lens 12, a liquid crystal display module 13 and at least one reflector 14. For convenience and clarity, one mirror 14 is illustrated. The light source plate 10 has a plurality of light sources 100, the light sources 100 being, for example, but not limited to, light emitting diodes. The parabolic plano-convex lens module 11 has a plurality of parabolic plano-convex lenses 110, wherein the planes of all the parabolic plano-convex lenses 110 face the light emitting sides of all the light sources 100, respectively, and the paraboloids of the parabolic plano-convex lenses 110 face the spherical double convex lenses 12. The spherical double convex lens 12 and the lamp source plate 10 are respectively located on two opposite sides of the parabolic plano-convex lens module 11. The liquid crystal display module 13 and the parabolic plano-convex lens module 11 are respectively located on two opposite sides of the spherical double-convex lens 12.
The light emitted from all the light sources 100 sequentially passes through all the parabolic plano-convex lenses 110, the spherical bi-convex lenses 12 and the liquid crystal display module 13 of the parabolic plano-convex lens module 11 to form image light. Since the reflecting mirror 14 is located on the optical path of the image light, the reflecting mirror 14 reflects the image light to a transparent substrate 2, thereby generating a virtual image. The transparent substrate 2 may be a windshield of an automobile, but the invention is not limited thereto. The parabolic plano-convex lens module 11 and the spherical biconvex lens 12 are used to achieve the display image effect with high uniformity and high luminance, and to reduce the light-emitting angle to prevent the light from diffusing in the device, thereby reducing the stray light.
In some embodiments of the present invention, the horizontal axis and the vertical axis of the paraboloid of the paraboloidal plano-convex lens 110 may both be paraboloidal curves, and the curvature radius of the horizontal axis is different from that of the vertical axis, so that the paraboloidal plano-convex lens 110 can achieve the light source expansion effect better than that of an axisymmetric lens. For example, the radii of curvature of the horizontal and vertical axes of the paraboloid of the paraboloidal plano-convex lens 110 can be, but are not limited to, 2.5 millimeters (mm) and 4 mm, respectively. The refractive index of the parabolic plano-convex lens 110 can be, but is not limited to, 1.56-1.58. The vertical axis and the horizontal axis of the spherical surface of the spherical double convex lens 12 facing the liquid crystal display module 13 may both be spherical curves, the curvature radii of the vertical axis and the horizontal axis of the spherical surface of the spherical double convex lens 12 facing the liquid crystal display module 13 are different, and the vertical axis and the horizontal axis of the spherical surface of the spherical double convex lens 12 facing the parabolic plano-convex lens module 11 may be spherical curves and straight lines, respectively, so as to achieve the light source expansion effect. The vertical axis and the horizontal axis of the spherical lenticular lens 12 facing the spherical surface of the liquid crystal display module 13 may have a radius of curvature of, but not limited to, 100 mm and 20 mm, respectively, and the vertical axis of the spherical lenticular lens 12 facing the spherical surface of the parabolic plano-convex lens module 11 may have a radius of curvature of, but not limited to, 100 mm. The refractive index of the spherical lenticular lens 12 can be, but is not limited to, 1.56-1.58. Specifically, the light source board 10 may further include a printed circuit board 101, and all the light sources 100 are disposed on the printed circuit board 101. In order to effectively distribute the light sources 100 in the screen, the light sources 100 are designed on the printed circuit board 101 at unequal intervals.
FIG. 4 is an exploded view of the lamp panel, the parabolic plano-convex lens module, the hollow cylinder, the spherical bi-convex lens, the fixing member, the diffusion film, the liquid crystal display module and the fixing fixture according to one embodiment of the present invention. FIG. 5 is a perspective view of a combination structure of a lamp panel, a parabolic plano-convex lens module, a hollow cylinder, a spherical biconvex lens, a fixing member, a diffusion film, a liquid crystal display module and a fixing clamp according to an embodiment of the invention. Referring to fig. 4 and 5, in some embodiments of the present invention, the projection display apparatus 1 may further include a hollow cylinder 15, a fixing member 16, a diffusion film 17, and a fixing clamp 18. The hollow cylinder 15 has a first opening 150 and a second opening 151 opposite to each other, wherein the parabolic plano-convex lens module 11 is disposed in the hollow cylinder 15, the printed circuit board 101 of the lamp source board 10 is disposed on the hollow cylinder 15 to shield the first opening 150, and all the light sources 100 are located in the hollow cylinder 15. The fixing member 16 has a third opening 160 penetrating through itself, wherein the fixing member 16 has a first side and a second side opposite to each other, the spherical double-convex lens 12 is fixed on the first side of the fixing member 16, and the spherical double-convex lens 12 and the fixing member 16 are disposed in the hollow cylinder 15. The diffuser film 17 may have a microstructure exhibiting an elliptical shape. The diffusion film 17 is fixed to the second side of the fixing member 16, wherein the spherical lenticular lens 12 and the diffusion film 17 shield the third opening 160. The mounting clip 18 has a fourth opening 180 therethrough. The fixing jig 18 is fixed on the hollow cylinder 15 to sandwich the liquid crystal display module 13 between the fixing jig 18 and the diffusion film 17, and the liquid crystal display module 13 is exposed through the fourth opening 180. The light emitted from the light source 100 passes through the spherical double-convex lens 12, the third opening 160, the second opening 151, the diffusion film 17, the liquid crystal display module 13 and the fourth opening 180 in sequence to form image light. If the top side a of the pcb 101 is defined as a horizontal side and the side B is defined as a vertical side, since the spherical lenticular lens 12 and the lcd module 13 also have a top side a 'and a side B' perpendicular to each other, the top side a 'of the spherical lenticular lens 12 and the lcd module 13 is also defined as a horizontal side and the side B' is defined as a vertical side. In order to prevent sunlight from directly irradiating the liquid crystal display module 13 through the transparent substrate 2, the liquid crystal display module 13 may be inclined with respect to the printed circuit board 101 of the light source plate 10. Specifically, the horizontal side of the liquid crystal display module 13 may be inclined by 3.06 degrees with respect to the horizontal side of the printed circuit board 101, and the vertical side of the liquid crystal display module 13 may be inclined by 22 degrees with respect to the vertical side of the printed circuit board 101, so as to avoid the defocus phenomenon. In order to match the optical path design of the liquid crystal display module 13, the spherical lenticular lens 12 is tilted with respect to the printed circuit board 101 of the lamp source panel 10. Specifically, the horizontal side of the spherical lenticular lens 12 may be inclined by 1 degree with respect to the horizontal side of the printed circuit board 101, and the vertical side of the spherical lenticular lens 12 may be inclined by 2 degrees with respect to the vertical side of the printed circuit board 101.
Fig. 6 is a perspective view of a projection display device according to an embodiment of the present invention. Referring to fig. 4 and 6, the projection display apparatus 1 may further include a base 19, and two mirrors 14 may be used in the embodiment of fig. 6. The base 19 has a receiving cavity 190, and the hollow cylinder 15 and the reflector 14 are disposed in the receiving cavity 190. As can be seen from fig. 6, the printed circuit board 101 is farther from the sunlight than the liquid crystal display module 13, and the sunlight is indicated by an arrow. The side of the liquid crystal display module 13 has two ends, wherein one end is close to the sunlight, and the other end is far from the sunlight, wherein the shortest distance from the end close to the sunlight to the printed circuit board 101 is designed to be larger than the shortest distance from the end far from the sunlight to the printed circuit board 101, so as to prevent the sunlight from penetrating the transparent substrate 2 and directly irradiating the liquid crystal display module 13.
FIG. 7 is a simulation graph of horizontal viewing angle and vertical viewing angle according to the present invention. Referring to fig. 7, when the number of the light sources is four, the uniformity of the luminance can be 74%, the average luminance of the picture at 3.86 w is 1870000 nit, and the light-emitting efficiency is 484000 lumens (Im)/w. In addition, when the vertical viewing angle is ± 12.79 degrees, the corresponding picture has high luminance. When the horizontal viewing angle is ± 30.57 degrees, the corresponding picture has high luminance.
FIG. 8 is a schematic view of an embodiment of a vehicle of the present invention. Referring to fig. 8 and fig. 6, the projection display apparatus of each of the foregoing embodiments can be applied to a vehicle 3, the vehicle 3 includes a vehicle body 30 and the projection display apparatus of any of the foregoing embodiments, taking the embodiment of fig. 6 as an example, all components on the base 19 are disposed in the vehicle body 30, wherein the transparent substrate 2 is a windshield disposed in a front frame of the vehicle body 30 and is used as a projection medium.
According to the embodiment, the projection display device achieves the display picture effect with high uniformity and high luminance by using the paraboloidal plano-convex lens module and the spherical double convex lens, and reduces the light-emitting angle to prevent light from diffusing in the device, thereby reducing stray light.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, so that equivalent variations and modifications in shape, structure, characteristics and spirit described in the scope of the claims of the present invention are included in the scope of the present invention.
Claims (10)
1. A projection display device, comprising:
a light source plate having a plurality of light sources;
the paraboloid plano-convex lens module is provided with a plurality of paraboloid plano-convex lenses, wherein the planes of the paraboloid plano-convex lenses respectively face the light emitting sides of the light sources;
the spherical double convex lens and the lamp source plate are respectively positioned at two opposite sides of the paraboloid plano-convex lens module;
the liquid crystal display module and the paraboloidal plano-convex lens module are respectively positioned at two opposite sides of the spherical double convex lens, wherein light rays emitted by the light source sequentially pass through the paraboloidal plano-convex lens, the spherical double convex lens and the liquid crystal display module of the paraboloidal plano-convex lens module to form image light; and
at least one mirror positioned on an optical path of the image light, wherein the at least one mirror reflects the image light to the transparent substrate to generate a virtual image.
2. The projection display device of claim 1, further comprising:
the parabolic plano-convex lens module is arranged in the hollow cylinder, the light source plate is arranged on the hollow cylinder to shield the first opening, and the light source is positioned in the hollow cylinder;
a fixing member having a third opening penetrating therethrough, wherein the fixing member has a first side and a second side opposite to each other, the spherical double-convex lens is fixed to the first side of the fixing member, and the spherical double-convex lens and the fixing member are disposed in the hollow cylinder;
a diffusion film fixed to the second side of the fixing member, wherein the spherical double-convex lens and the diffusion film cover the third opening; and
and the fixing clamp is provided with a fourth opening penetrating through the fixing clamp, the fixing clamp is fixed on the hollow cylinder so as to clamp the liquid crystal display module between the fixing clamp and the diffusion film and expose the liquid crystal display module through the fourth opening, and the light rays sequentially pass through the spherical double-convex lens, the third opening, the second opening, the diffusion film, the liquid crystal display module and the fourth opening so as to form the image light.
3. The projection display device of claim 2, further comprising a base having a receiving recess, wherein the at least one mirror comprises two mirrors, and wherein the hollow cylinder and the two mirrors are both located in the receiving recess.
4. The projection display device of claim 1, wherein the transparent substrate is a windshield of an automobile.
5. The projection display device of claim 1, wherein the light source board further comprises a printed circuit board, the light source being disposed on the printed circuit board.
6. The projection display device of claim 1, wherein the horizontal axis and the vertical axis of the paraboloid plano-convex lens are both parabolic curves, and the radius of curvature of the horizontal axis and the vertical axis are different.
7. The projection display device of claim 1, wherein the vertical axis and the horizontal axis of the spherical lenticular lens facing the spherical surface of the liquid crystal display module are both spherical curves, and the vertical axis and the horizontal axis of the spherical lenticular lens facing the spherical surface of the parabolic plano-convex lens module are a spherical curve and a straight line, respectively.
8. The projection display device of claim 1, wherein the liquid crystal display module is tilted with respect to the lamp source plate.
9. The projection display device of claim 1, wherein the spherical lenticular lens is tilted with respect to the lamp source plate.
10. A vehicle, characterized by comprising
A vehicle main body; and
the projection display device of any one of claims 1 to 9, provided in the vehicle body;
the transparent substrate is a windshield arranged in a front frame of a vehicle body and is used as a projection medium.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210420409.3A CN114545637B (en) | 2022-04-21 | 2022-04-21 | Projection display device and vehicle with same |
| TW111115622A TWI813267B (en) | 2022-04-21 | 2022-04-25 | Projection display apparatus and vehicle having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210420409.3A CN114545637B (en) | 2022-04-21 | 2022-04-21 | Projection display device and vehicle with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114545637A true CN114545637A (en) | 2022-05-27 |
| CN114545637B CN114545637B (en) | 2023-05-05 |
Family
ID=81667024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210420409.3A Active CN114545637B (en) | 2022-04-21 | 2022-04-21 | Projection display device and vehicle with same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114545637B (en) |
| TW (1) | TWI813267B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024127860A1 (en) * | 2022-12-14 | 2024-06-20 | 矢崎総業株式会社 | Vehicular display device |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11212022A (en) * | 1998-01-28 | 1999-08-06 | Nec Corp | Video projector |
| JP2001051237A (en) * | 1999-08-06 | 2001-02-23 | Ricoh Co Ltd | Illumination system and liquid crystal projector |
| US20030067682A1 (en) * | 2001-10-09 | 2003-04-10 | Samsung Electronics Co., Ltd. | Screen for projection television |
| JP2006220809A (en) * | 2005-02-09 | 2006-08-24 | Canon Inc | Projection lens and projector using the same |
| US20100073934A1 (en) * | 2008-09-19 | 2010-03-25 | Genius Electronic Optical Co., Ltd. | Optical illumination module |
| CN101697596A (en) * | 2004-09-03 | 2010-04-21 | 日本电气株式会社 | Image display device |
| US20120182326A1 (en) * | 2011-01-18 | 2012-07-19 | United States Of America, As Represented By The Secretary Of The Army | Anamorphic eyepiece with a microlens array for a panoramic field of view |
| US20130229635A1 (en) * | 2012-03-02 | 2013-09-05 | Hsin-Hung Lin | Projection lens and projection device |
| CN103460114A (en) * | 2011-03-25 | 2013-12-18 | 日本精机株式会社 | Head-up display device |
| CN203786454U (en) * | 2014-01-08 | 2014-08-20 | 扬明光学股份有限公司 | Illumination system and projection device |
| CN104503089A (en) * | 2014-12-18 | 2015-04-08 | 北京首量科技有限公司 | Variable-multiplying power beam expander used for laser processing system |
| JP2015219370A (en) * | 2014-05-16 | 2015-12-07 | 株式会社 オルタステクノロジー | Spherical surface projection display device |
| CN206321875U (en) * | 2016-10-25 | 2017-07-11 | 创扬通信技术（深圳）有限公司 | The VR/MR optical systems and VR/MR equipment of dual element convex-concave eyeglass |
| CN207586520U (en) * | 2017-12-28 | 2018-07-06 | 陆战军 | Move DV optical lens |
| CN108700749A (en) * | 2016-02-23 | 2018-10-23 | 株式会社电装 | Head-up display |
| CN109407301A (en) * | 2018-11-30 | 2019-03-01 | 重庆爱奇艺智能科技有限公司 | A kind of eyepiece and headset equipment |
| CN111552085A (en) * | 2020-06-24 | 2020-08-18 | 业成科技（成都）有限公司 | Head-up display device and manufacturing process thereof |
| CN114296220A (en) * | 2021-12-31 | 2022-04-08 | 青岛海信激光显示股份有限公司 | Projection lens and projection system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM515111U (en) * | 2015-08-04 | 2016-01-01 | Unice E O Services Inc | Vehicle head-up display and display unit thereof |
| JP6481649B2 (en) * | 2016-03-29 | 2019-03-13 | 株式会社デンソー | Head-up display device |
-
2022
- 2022-04-21 CN CN202210420409.3A patent/CN114545637B/en active Active
- 2022-04-25 TW TW111115622A patent/TWI813267B/en active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11212022A (en) * | 1998-01-28 | 1999-08-06 | Nec Corp | Video projector |
| JP2001051237A (en) * | 1999-08-06 | 2001-02-23 | Ricoh Co Ltd | Illumination system and liquid crystal projector |
| US20030067682A1 (en) * | 2001-10-09 | 2003-04-10 | Samsung Electronics Co., Ltd. | Screen for projection television |
| CN101697596A (en) * | 2004-09-03 | 2010-04-21 | 日本电气株式会社 | Image display device |
| JP2006220809A (en) * | 2005-02-09 | 2006-08-24 | Canon Inc | Projection lens and projector using the same |
| US20100073934A1 (en) * | 2008-09-19 | 2010-03-25 | Genius Electronic Optical Co., Ltd. | Optical illumination module |
| US20120182326A1 (en) * | 2011-01-18 | 2012-07-19 | United States Of America, As Represented By The Secretary Of The Army | Anamorphic eyepiece with a microlens array for a panoramic field of view |
| CN103460114A (en) * | 2011-03-25 | 2013-12-18 | 日本精机株式会社 | Head-up display device |
| US20130229635A1 (en) * | 2012-03-02 | 2013-09-05 | Hsin-Hung Lin | Projection lens and projection device |
| CN203786454U (en) * | 2014-01-08 | 2014-08-20 | 扬明光学股份有限公司 | Illumination system and projection device |
| JP2015219370A (en) * | 2014-05-16 | 2015-12-07 | 株式会社 オルタステクノロジー | Spherical surface projection display device |
| CN104503089A (en) * | 2014-12-18 | 2015-04-08 | 北京首量科技有限公司 | Variable-multiplying power beam expander used for laser processing system |
| CN108700749A (en) * | 2016-02-23 | 2018-10-23 | 株式会社电装 | Head-up display |
| CN206321875U (en) * | 2016-10-25 | 2017-07-11 | 创扬通信技术（深圳）有限公司 | The VR/MR optical systems and VR/MR equipment of dual element convex-concave eyeglass |
| CN207586520U (en) * | 2017-12-28 | 2018-07-06 | 陆战军 | Move DV optical lens |
| CN109407301A (en) * | 2018-11-30 | 2019-03-01 | 重庆爱奇艺智能科技有限公司 | A kind of eyepiece and headset equipment |
| CN111552085A (en) * | 2020-06-24 | 2020-08-18 | 业成科技（成都）有限公司 | Head-up display device and manufacturing process thereof |
| CN114296220A (en) * | 2021-12-31 | 2022-04-08 | 青岛海信激光显示股份有限公司 | Projection lens and projection system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024127860A1 (en) * | 2022-12-14 | 2024-06-20 | 矢崎総業株式会社 | Vehicular display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114545637B (en) | 2023-05-05 |
| TW202343106A (en) | 2023-11-01 |
| TWI813267B (en) | 2023-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7513668B1 (en) | Illumination system for a head up display | |
| WO2021050967A1 (en) | Directional illumination apparatus and privacy display | |
| US11571952B2 (en) | Head up display device and image display apparatus therefor | |
| US10295825B2 (en) | Projection system for display, in particular a heads-up display, and associated display | |
| US9417449B2 (en) | Head-up display system | |
| CA2708522C (en) | Low profile backlight apparatus | |
| US20070064174A1 (en) | Illuminating device, and light source unit incorporating same | |
| US20190162960A1 (en) | Display device and head-up display device | |
| JP2021180179A (en) | Reflector, head-up display having reflector, and vehicle equipped with head-up display | |
| CN111948814A (en) | Head-up display system | |
| JP4720694B2 (en) | Vehicle display device | |
| JP2007073469A (en) | Planar illuminator and light source unit using same | |
| JP2004241237A (en) | Surface lighting system and liquid crystal display device using same | |
| WO2019037370A1 (en) | Hud illumination system, head-up display device and realization method | |
| JP2012529670A (en) | Flat panel optical display system with high control output | |
| CN114545637B (en) | Projection display device and vehicle with same | |
| JP2016180922A (en) | Head-up display device | |
| CN112346271A (en) | Hud backlight illumination system | |
| US10222616B2 (en) | Backlight unit for head-up display apparatus | |
| CN114721209B (en) | Projection display device | |
| CN215494356U (en) | Backlight device, vehicle-mounted head-up display and vehicle | |
| JP6995958B2 (en) | Lighting equipment | |
| TWI699499B (en) | Backlight device | |
| WO2018139157A1 (en) | Lighting device and head-up display device | |
| CN218003856U (en) | Backlight illumination system, imaging system and head-up display system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240108 Address after: 518109, Building E4, 101, Foxconn Industrial Park, No. 2 East Ring 2nd Road, Fukang Community, Longhua Street, Longhua District, Shenzhen City, Guangdong Province (formerly Building 1, 1st Floor, G2 District), H3, H1, and H7 factories in K2 District, North Shenchao Optoelectronic Technology Park, Minqing Road, Guangdong Province Patentee after: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Patentee after: Interface Technology (Chengdu) Co., Ltd. Patentee after: GENERAL INTERFACE SOLUTION Ltd. Address before: No.689 Hezuo Road, West District, high tech Zone, Chengdu City, Sichuan Province Patentee before: Interface Technology (Chengdu) Co., Ltd. Patentee before: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Patentee before: Yicheng Photoelectric (Wuxi) Co.,Ltd. Patentee before: GENERAL INTERFACE SOLUTION Ltd. |