CN212965726U - Projection device, vehicle and electronic product - Google Patents
Projection device, vehicle and electronic product Download PDFInfo
- Publication number
- CN212965726U CN212965726U CN202021667199.0U CN202021667199U CN212965726U CN 212965726 U CN212965726 U CN 212965726U CN 202021667199 U CN202021667199 U CN 202021667199U CN 212965726 U CN212965726 U CN 212965726U
- Authority
- CN
- China
- Prior art keywords
- lcd
- unit
- light
- pattern
- microlens
- 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
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
The utility model relates to a projection technology field discloses a projection arrangement, vehicle and electronic product, projection arrangement includes light source subassembly, LCD layer and microlens layer, the LCD layer includes at least one LCD unit, the LCD unit is used for receiving the light of light source subassembly outgoing to form the imaging light that the pattern of formation corresponds and keep away from the direction outgoing of light source subassembly, the microlens layer is located the LCD layer deviates from one side of light source subassembly, the microlens layer includes at least one microlens unit, the microlens unit with the LCD unit is corresponding, the microlens unit is used for receiving and corresponds the LCD unit outgoing imaging light, in order to form the pattern of formation. The utility model discloses a projecting apparatus, vehicle and electronic product can project out colored formation of image pattern, and the color is abundanter.
Description
Technical Field
The utility model relates to a projection technology field especially relates to a projection arrangement, vehicle and electronic product.
Background
Projection technology is widely used in the fields of image display, greeting illumination, stage illumination and the like.
The related art projection device specifically includes a light source, a film with a customized pattern, and a projection lens for enlarging and projecting the pattern image of the film to the front.
However, the color of the pattern image formed by the projection of the projection device depends on the light source, and the color of the pattern image is relatively single.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a projection arrangement, vehicle and electronic product can project colored imaging pattern, and the color is abundanter.
In a first aspect, an embodiment of the present invention discloses a projection apparatus, the projection apparatus includes a light source assembly, an LCD layer and a microlens layer, the LCD layer includes at least one LCD unit, the LCD unit is used for receiving the light of light source assembly outgoing to form the imaging light that imaging pattern corresponds and keep away from the direction outgoing of light source assembly, the microlens layer is located the LCD layer deviates from one side of light source assembly, the microlens layer includes at least one microlens unit, the microlens unit with the LCD unit is corresponding, the microlens unit is used for receiving the correspondence the imaging light of LCD unit outgoing, in order to form imaging pattern.
This embodiment sends through the light source subassembly and sends white light to the LCD layer, and the LCD unit through the LCD layer jets out image light, and image light forms the formation of image pattern through the refraction of microlens unit, can make the image light that the light source subassembly that sends single colored white light formed for colored light through the LCD unit to make this projection arrangement can project out colored formation of image pattern, the color is abundanter.
As an optional implementation manner, in the embodiment of the present invention, the projection apparatus further includes a collimating optical assembly, the collimating optical assembly is located between the light source assembly and the LCD layer, and the collimating optical assembly is configured to convert the light emitted by the light source assembly into collimated light and inject the collimated light into the LCD layer.
This embodiment makes the light that the light source subassembly sent form the parallel light and get into the LCD layer through setting up collimation optical assembly, effectively improves light utilization ratio.
As an optional implementation manner, in an embodiment of the present invention, the projection apparatus further includes a reflective plate, the reflective plate is located at a side of the light source assembly away from the LCD layer, and the reflective plate is used for reflecting the light emitted by the light source assembly to the LCD layer.
This embodiment is through setting up the reflection plate with the light reflection as much as possible that the light source subassembly sent to the LCD layer, improves light utilization ratio.
As an optional implementation manner, in an embodiment of the present invention, the projection apparatus further includes a diffusion plate, where the diffusion plate is disposed on a side of the light source module facing the LCD layer.
The embodiment enables the light rays emitted into the LCD unit to be more uniform through the diffusion plate, thereby improving the quality of the imaging pattern projected by the projection device.
As an optional implementation manner, in the embodiment of the present invention, the light source component is an LED lamp, and the LED lamp emits light toward the LCD layer;
or the light source component comprises an LED lamp and a light guide plate, the LED lamp emits light towards the light guide plate, and the light guide plate is located on one side, away from the micro-lens layer, of the LCD layer.
The embodiment provides a plurality of optional light source assemblies, so that the projection device can be selected and matched according to actual needs, and different use requirements can be met.
As an optional implementation manner, in the embodiment of the present invention, the LCD layer has a plurality of LCD units arranged in an array, the microlens layer includes a plurality of microlens units arranged in an array, each microlens unit corresponds to each LCD unit one-to-one, each microlens unit is used for receiving the imaging light emitted from the corresponding LCD unit, so as to form the imaging sub-pattern corresponding to each LCD unit by projecting respectively, and each imaging sub-pattern is superposed to form the imaging pattern.
In the embodiment, a plurality of groups of imaging light rays can be emitted through a plurality of LCD units on the LCD layer, the plurality of groups of imaging light rays are refracted by the corresponding micro lens units on the micro lens layer to form imaging sub-patterns corresponding to the LCD units, and the imaging sub-patterns are superposed to form imaging patterns, so that the volume of the projection device is effectively reduced on the basis of ensuring the imaging effect.
As an optional implementation manner, in the embodiment of the present invention, the plurality of microlens units includes at least one first microlens unit and at least one second microlens unit;
the first micro-lens unit is used for projecting and forming a first imaging sub-pattern, and the first imaging sub-group is a reference imaging sub-pattern;
the second micro-lens unit is used for projecting and forming a second imaging sub-pattern, and the projecting position of the second imaging sub-pattern is shifted to be coincided with the projecting position of the reference imaging sub-pattern.
In the embodiment, the first imaging sub-pattern is formed by the first micro-lens unit, and the first imaging sub-pattern is used as the reference imaging sub-pattern, and the projection position of the second imaging sub-pattern formed by the second lens unit is shifted to coincide with the projection position of the reference imaging sub-pattern, so that the reference imaging sub-pattern and the second imaging sub-pattern are superposed to form the imaging pattern, and the imaging quality is ensured.
As an optional implementation manner, in the embodiment of the present invention, the first microlens unit is a circular symmetric structure, and the second microlens unit is a non-circular symmetric structure, so that the projection position of the second microlens unit coincides with the projection position of the first microlens unit.
The first microlens unit of the embodiment adopts a circularly symmetric structure, so that the projection position of the first imaging sub-pattern is opposite to the first microlens unit, and the projection position of the finally formed imaging pattern is determined.
In a second aspect, an embodiment of the present invention discloses a vehicle having the projection apparatus of the first aspect, the vehicle includes a main body portion and the projection apparatus, the projection apparatus is disposed on the main body portion. It will be appreciated that the vehicle has the benefits of the projection apparatus of the first aspect described above.
In a third aspect, an embodiment of the present invention discloses an electronic product having the projection apparatus of the first aspect. It can be understood that the electronic product has the beneficial effects of the projection device according to the first aspect.
The embodiment of the utility model provides a projection arrangement, vehicle and electronic product, the light of light source subassembly outgoing is received to at least one LCD unit through the LCD layer, one side that deviates from the light source subassembly at LCD simultaneously sets up the microlens layer, the microlens layer includes at least one microlens unit, the microlens unit is corresponding with the LCD unit, thereby make the microlens unit receive rather than the formation of image light of the LCD unit outgoing that corresponds, when the formation of image light of LCD unit outgoing is colored light, can form colored formation of image pattern, the color is comparatively abundant.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a projection apparatus according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an LCD unit according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of another projection apparatus according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a collimating optical assembly according to an embodiment of the present invention, which is a double-layer microlens array;
fig. 5 is a schematic structural diagram of a collimating optical assembly according to an embodiment of the present invention, which is a single-layer microlens array;
fig. 6 is a schematic structural diagram of a collimating optical assembly according to a first embodiment of the present invention, which is a fresnel lens;
fig. 7 is a schematic structural diagram of another projection apparatus according to a first embodiment of the present invention;
fig. 8 is a schematic structural view of a plurality of LCD units arranged in a matrix array according to a first embodiment of the present invention;
fig. 9 is a schematic structural diagram of a plurality of LCD units arranged in a hexagonal array according to a first embodiment of the present invention;
fig. 10 is a schematic structural diagram of a first microlens unit according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a second microlens unit according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a vehicle according to a second embodiment of the present invention;
fig. 13 is a schematic structural diagram of an electronic product according to a third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first," "second," "third," "fourth," and the like are used primarily for distinguishing between different devices, elements, or components (the specific type and configuration may be the same or different), and are not intended to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.
The utility model discloses a projection arrangement, vehicle and electronic product can project colored imaging pattern, and the color is abundanter.
Example one
Please refer to fig. 1, which discloses a schematic structural diagram of a projection apparatus 100 in this embodiment, the projection apparatus 100 includes a light source assembly 10, an LCD layer 11 and a microlens layer 12, the LCD layer 11 includes at least one LCD unit 111, the LCD unit 111 is used for receiving light emitted from the light source assembly 10 to form imaging light corresponding to an imaging group a and emit the imaging light in a direction away from the light source assembly 10, the microlens layer 12 is located on a side of the LCD layer 11 facing away from the light source assembly 10, the microlens layer 12 includes at least one microlens unit 121, the microlens unit 121 corresponds to the LCD unit 111, and the microlens unit 121 is used for receiving imaging light emitted from the LCD unit 111 corresponding to the microlens unit 121 to form the imaging pattern a.
The dotted lines with arrows shown in the drawings of the present embodiment represent light rays emitted from the light source assembly 10.
As shown in fig. 2, the LCD unit 111 includes a first polarizer 11a, a first transparent electrode 11b, a liquid crystal layer 11c, a second transparent electrode 11d, and a second polarizer 11e, which are sequentially stacked along the direction from the light source assembly 10 to the microlens layer 12. It can be understood that the gray control of each pixel point is formed by the fact that the grids of the first polarizer 11a and the second polarizer 11e are perpendicular to each other and cooperate with the liquid crystal molecule rotation light direction of the liquid crystal layer 11c, the liquid crystal molecules existing in liquid state are changed in arrangement direction by applying voltage to the first transparent electrode 11b and the second transparent electrode 11d, so that the light is twisted, white light with different pixel gray levels is obtained, the color matching of each sub-pixel is controlled through the color filter, and then imaging light rays which are emitted in parallel are obtained behind the second polarizer 11 e. The imaging light can be colored light or white high light, the imaging pattern A corresponding to the colored light is a colored pattern, and the imaging pattern A corresponding to the white high light is a black-and-white pattern. Moreover, the LCD unit 111 can be controlled by an external circuit, so as to change the shape of the imaging pattern a projected by the projection apparatus 100.
In this embodiment, the light source assembly 10 emits white light to the LCD layer 11, the LCD unit 111 of the LCD layer 11 emits imaging light corresponding to the imaging light a, the imaging light is refracted by the microlens unit 121 to form an imaging pattern a, and the light source assembly 10 emitting white light of a single color forms color light or white light by using the LCD unit 111, so that the projection apparatus 100 can project a color or black and white imaging pattern a with rich colors.
As an alternative embodiment, as shown in fig. 1 and 3, the Light source assembly 10 may be an LED lamp 101(Light-Emitting Diode Light), and the LED lamp 101 emits Light toward the LCD layer 11. In some other embodiments, the light source assembly 10 may also be a semiconductor laser, which is not particularly limited in this embodiment.
As shown in fig. 3, the lens device further includes a collimating optical assembly 13, the collimating optical assembly 13 is located between the light source assembly 10 and the LCD layer 11, and the collimating optical assembly 13 is configured to convert the light emitted from the light source assembly 10 into collimated light to be incident on the LCD layer 11. It can be appreciated that the light emitted from the LED lamp 101 is refracted by the collimating optical assembly 13 so that the light can be vertically incident to the LCD layer 11, thereby improving light utilization efficiency.
Illustratively, the collimating optical assembly 13 includes one of a collimating lens, a double-layer microlens array, a single-layer microlens array, a fresnel lens and an LED light projecting lens, and the collimating optical element can be selected and matched according to the actual use requirement of the projection apparatus 100, so as to meet different use requirements.
As shown in fig. 4, fig. 4 shows that the collimating optical element 13 is a two-layer microlens array, as shown in fig. 5, fig. 5 shows that the collimating optical element 13 is a single-layer microlens array, as shown in fig. 6, and fig. 6 shows that the collimating optical element 13 is a fresnel lens. The refraction of the light emitted from the light emitting element 10 into parallel light is achieved by the collimating optical element 13 so that the light can be perpendicularly incident on the LCD layer 11.
As another alternative, as shown in fig. 7, the light source assembly 10 includes an LED lamp 101 and a light guide plate 102, the LED lamp 101 emits light toward the light guide plate 102, and the light guide plate 102 is located on a side of the LCD layer 11 facing away from the microlens layer 12. It can be understood that after the light emitted from the LED lamp 101 enters the light guide plate 102, the light can be diffused in the light guide plate 102 to make the entire light guide plate 102 emit light, and the light guide plate 102 converts the linear light source into a surface light source to increase the light irradiation area, so that the light utilization rate is high.
Further, the projection apparatus 100 further includes a reflective plate 14, the reflective plate 14 is located at a side of the light source assembly 10 away from the LCD layer 11, and the reflective plate 14 is used for reflecting the light emitted from the light source assembly 10 to the LCD layer 11. By disposing the reflective plate 14, the entire light emitted from the light guide plate 102 can be reflected to the LCD layer 11, thereby further improving the utilization rate of the light.
Considering that the two sides of the light guide plate 102 are respectively provided with the reflective plate 14 and the LCD layer 11, the LED lamp 101 should be disposed at one end of the light guide plate 102, and the light guide plate 102 should be a side-entry light guide plate 102, so as to avoid the situation that the LED blocks the light reflected from the reflective plate 14 back to the light guide plate 102 and blocks the light emitted from the light guide plate 102 to the LCD layer 11.
In some embodiments, the projection apparatus 100 further includes a diffusion plate 15, and the diffusion plate 15 is disposed on a side of the light source assembly 10 facing the LCD layer 11, and particularly, may be disposed on a side of the light guide plate 102 facing the LCD layer 11. It can be understood that, when the light guide plate 102 is a side-entry light guide plate 102, the brightness of the light guide plate 102 from one end of the light guide plate 102 near the LED lamp 101 to the other end is gradually reduced, so that the light emitted from the light guide plate 102 can be modified by the diffusion sheet to form a uniform surface light source, so that the light entering the LCD unit 111 is more uniform, and the quality of the projected image pattern a of the projection apparatus 100 is improved.
In some embodiments, the LCD layer 11 has a plurality of LCD units 111 arranged in an array, the microlens layer 12 includes a plurality of microlens units 121 arranged in an array, each microlens unit 121 corresponds to each LCD unit 111 one by one, each microlens unit 121 is configured to receive imaging light emitted from the corresponding LCD unit 111 to form an imaging sub-pattern a corresponding to each LCD unit 111 by projection, and each imaging sub-pattern a is overlapped to form the imaging pattern a. At this time, the image forming patterns a are patterns having the same shape and size.
In some other embodiments, each of the imaging patterns a may be a pattern having a different shape and/or size, and the imaging pattern a is formed by stitching a plurality of the imaging patterns a. That is, the imaging light rays exiting each LCD cell in this embodiment may be different.
It can be understood that, in the present embodiment, multiple groups of imaging light rays can be emitted by multiple LCD units 111 of the LCD layer 11, the multiple groups of imaging light rays are refracted by corresponding microlens units 121 on the microlens layer 12 to form imaging sub-patterns a corresponding to the LCD units 111, and the imaging sub-patterns a are overlapped to form the imaging pattern a, so that the volume of the projection apparatus 100 is effectively reduced on the basis of ensuring the imaging effect.
Alternatively, the plurality of LCD units 111 may be arranged in a matrix array or a hexagonal array.
As an alternative embodiment, as shown in fig. 8, fig. 8 shows that a plurality of LCD units 111 are arranged in a matrix array, in this case, each LCD unit 111 may have a rectangular shape, and the matrix array is formed by rectangular splicing, and accordingly, in order to make each microlens unit 121 correspond to each LCD unit 111 one by one, a plurality of microlens units 121 are arranged in a matrix array.
As another alternative, as shown in fig. 9, fig. 9 shows that the plurality of LCD units 111 are arranged in a hexagonal array, in this case, the outer shape of each LCD unit 111 may be hexagonal, and the hexagonal array is formed by hexagonal splicing, and accordingly, the plurality of microlens units 121 are arranged in a hexagonal formation column so that each microlens unit 121 corresponds to each LCD unit 111 one-to-one. In some other embodiments, the plurality of LCD units 111 may be arranged in a circular array or a triangular array, and the like, which is not particularly limited in this embodiment.
Alternatively, the LCD units 111 are the same size. Considering that the LCD layer 11 adopted in the present embodiment is a flat layered structure, distances from various parts on the LCD layer 11 to the projection plane forming the final imaging pattern a are the same, that is, distances from various LCD units 111 to the projection plane are the same, so that shapes and sizes of a plurality of imaging sub-patterns a formed on the same projection plane are the same, so that the plurality of imaging sub-patterns a can be overlapped to form the imaging pattern a with the same shape and size, and the imaging pattern a is clear, thereby improving imaging quality.
When the LCD layer 11 is an arc-shaped or step-shaped layered structure, distances from various parts of the LCD layer 11 to the projection plane forming the final imaging pattern a are different, that is, distances from various LCD units 111 to the projection plane are different, and at this time, the sizes of the LCD units 111 are designed differently, so that the sizes of the imaging sub-patterns a on the same projection plane are adjusted by the patterns with different sizes and are made to be the same.
Alternatively, the curvature radius of each microlens unit 121 is the same. Considering that the microlens layer 12 adopted in the present embodiment is a flat layered structure, the distances from the microlens units 121 to the same projection plane are the same, and the imaging sub-patterns a formed by the microlens units 121 on the projection planes with different distances are different in size, therefore, the present embodiment adopts the design that the curvature radii of the microlens units 121 are the same, so that the imaging sub-patterns a formed by the plurality of microlens units 121 on the projection planes with different distances are the same in size, and thus the plurality of imaging sub-patterns a can be superposed to form the imaging patterns a with the same size, and the imaging patterns a are clear, thereby improving the imaging quality.
When the microlens layer 12 is an arc-shaped or step-shaped layered structure, distances from various parts of the microlens layer 12 to the projection plane forming the final imaging pattern a are different, that is, distances from the microlens units 121 to the projection plane are different, and at this time, the plurality of microlens units 121 can adopt a design with different curvatures, so that the sizes of the plurality of imaging sub-patterns a on the same projection plane can be adjusted through different curvatures, and the sizes are made to be consistent.
In the present embodiment, as shown in fig. 10 and 11, the plurality of microlens units 121 includes at least one first microlens unit 12a and at least one second microlens unit 12b, the first microlens unit 12a is used for projection forming the first imaging sub-pattern a1The first imaging sub-pattern a1The second microlens unit 12b is used to form a second imaged sub-pattern for reference imaging of the sub-patternCase a2And making the second imaged sub-pattern a2Is shifted to coincide with the projection position of the reference imaging sub-pattern. It can be understood that the first imaging sub-pattern a formed by projection of the first lens unit1The projection position of the final imaging pattern A can be determined as a reference imaging sub-pattern, and a second imaging sub-pattern a is projected by the second microlens unit 12b2And making the second imaged sub-pattern a2Is shifted to coincide with the projection position of the reference imaging sub-pattern, so that the second imaging sub-pattern a2Can be combined with the first imaging sub-pattern a1Overlapping to form the final imaging pattern A, ensuring imaging quality and avoiding the first imaging sub-pattern a1A ghost image of the image pattern a occurs due to a deviation from the projection position of the second image word pattern.
Alternatively, the first microlens unit 12a is a circularly symmetric structure, and the second microlens unit 12b is a non-circularly symmetric structure. It is understood that the first microlens unit 12a has a circularly symmetric structure such that the projection position of the first imaging sub-pattern a1 is aligned with the first microlens unit 12a to determine the projection position of the finally formed imaging pattern a, and the second microlens unit 12b has a non-circularly symmetric structure such that the second imaging sub-pattern a is aligned with the first microlens unit 12a2Is shifted to coincide with the projected position of the first imaging sub-pattern a1, thereby forming an imaging pattern a in superposition with the first imaging sub-pattern a 1.
The embodiment of the utility model provides a projection device 100, the light of receiving light source module 10 outgoing through at least one LCD unit 111 on LCD layer 11, one side that deviates from light source module 10 at LCD simultaneously sets up microlens layer 12, microlens layer 12 includes at least one microlens unit 121, microlens unit 121 is corresponding with LCD unit 111, thereby make microlens unit 121 receive rather than the formation of image light of the emergent LCD unit 111 that corresponds, when the formation of image light of LCD unit outgoing is colored light, can form colored formation of image pattern A, the color is comparatively abundant.
Example two
The second embodiment discloses a vehicle 200, the vehicle 200 includes a main body 21 and the projection apparatus 100 of the first embodiment, and the projection apparatus 100 is disposed on the main body 21.
The projection apparatus 100 of the embodiment can be used as a welcome lamp, a ground direction lamp and a ground braking distance warning lamp of the vehicle 200.
Illustratively, the vehicle 200 is an automobile or a bicycle. In some other embodiments, the vehicle 200 may be a train, an airplane, etc., and the embodiment is not particularly limited thereto.
As an alternative embodiment, where the vehicle 200 is an automobile, the body portion 21 may be an automobile door or an automobile chassis.
As another alternative, the vehicle 200 is a bicycle, and the main body portion 21 can be a bicycle frame or a bicycle saddle.
The embodiment of the present invention provides a vehicle 200, in which the projection device 100 projects a colorful image pattern, and the color is rich.
EXAMPLE III
The third embodiment discloses an electronic product 300, and the electronic product 300 includes the projection apparatus 100 of the first embodiment.
The projection apparatus 100 of the embodiment can be used as a greeting lamp or a warning lamp of the electronic product 300.
For example, the electronic product 300 may be a projector, an unmanned aerial vehicle, and the like, and this embodiment is not particularly limited thereto.
The third embodiment of the present invention provides an electronic product 300, which has a projection device 100 projecting a colorful image pattern with rich colors.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A projection device, comprising:
a light source assembly;
the LCD layer comprises at least one LCD unit, and the LCD unit is used for receiving the light emitted by the light source component to form imaging light corresponding to an imaging pattern and emit the imaging light in the direction far away from the light source component; and
the micro lens layer is positioned on one side, away from the light source component, of the LCD layer and comprises at least one micro lens unit, the micro lens unit corresponds to the LCD unit, and the micro lens unit is used for receiving the imaging light emitted by the corresponding LCD unit so as to form the imaging pattern.
2. The projection device of claim 1, further comprising collimating optics positioned between the light source module and the LCD layer, the collimating optics configured to convert light from the light source module into collimated light for incidence on the LCD layer.
3. The projection device of claim 1, further comprising a reflective plate on a side of the light source assembly facing away from the LCD layer, the reflective plate configured to reflect light emitted from the light source assembly toward the LCD layer.
4. A projection device as claimed in any one of claims 1 to 3, further comprising a diffuser plate disposed on a side of the light source assembly facing the LCD layer.
5. The projection device of any of claims 1 to 3, wherein the light source assembly is an LED lamp and the LED lamp emits light towards the LCD layer;
or the light source component comprises an LED lamp and a light guide plate, the LED lamp emits light towards the light guide plate, and the light guide plate is located on one side, away from the micro-lens layer, of the LCD layer.
6. The projection apparatus according to any one of claims 1 to 3, wherein the LCD layer has a plurality of LCD units arranged in an array, the microlens layer includes a plurality of microlens units arranged in an array, each microlens unit corresponds to each LCD unit one by one, each microlens unit is used for receiving imaging light emitted from the corresponding LCD unit to form an imaging sub-pattern corresponding to each LCD unit by projection, and each imaging sub-pattern is overlapped to form the imaging pattern.
7. The projection device of claim 6, wherein the plurality of microlens units includes at least one first microlens unit and at least one second microlens unit;
the first micro-lens unit is used for projecting and forming a first imaging sub-pattern, and the first imaging sub-pattern is a reference imaging sub-pattern;
the second micro-lens unit is used for projecting and forming a second imaging sub-pattern, and the projecting position of the second imaging sub-pattern is shifted to be coincided with the projecting position of the reference imaging sub-pattern.
8. The projection apparatus of claim 7, wherein the first microlens unit is a circularly symmetric structure and the second microlens unit is a non-circularly symmetric structure such that a projection position of the second microlens unit coincides with a projection position of the first microlens unit.
9. A vehicle comprising a body portion and a projection device as claimed in any one of claims 1 to 8, the projection device being provided on the body portion.
10. An electronic product, characterized by comprising a projection device according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021667199.0U CN212965726U (en) | 2020-08-11 | 2020-08-11 | Projection device, vehicle and electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021667199.0U CN212965726U (en) | 2020-08-11 | 2020-08-11 | Projection device, vehicle and electronic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212965726U true CN212965726U (en) | 2021-04-13 |
Family
ID=75352814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021667199.0U Active CN212965726U (en) | 2020-08-11 | 2020-08-11 | Projection device, vehicle and electronic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212965726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261327A (en) * | 2021-12-17 | 2022-04-01 | 一汽奔腾轿车有限公司 | Electric automobile electric quantity projection display system and display method |
-
2020
- 2020-08-11 CN CN202021667199.0U patent/CN212965726U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261327A (en) * | 2021-12-17 | 2022-04-01 | 一汽奔腾轿车有限公司 | Electric automobile electric quantity projection display system and display method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7135166B2 (en) | Reflector, head-up display with reflector, and vehicle equipped with head-up display | |
| JP6776140B2 (en) | Lighting device | |
| US11294173B2 (en) | Display device and head-up display device | |
| CN101430072B (en) | Assembled uniform surface light source | |
| US10768481B2 (en) | Direct type backlight and method of manufacturing the same, and display device | |
| CN101460876A (en) | Display apparatus with optical cavities | |
| CN101630067A (en) | Display | |
| WO2013022109A1 (en) | Backlight | |
| CN102227677A (en) | Thin backlight system and liquid crystal display device using same | |
| US8922735B2 (en) | Backlight system and liquid crystal display device using the same | |
| KR20050083468A (en) | Liquid crystal display with backlight device using microlens array sheet and a manufacturing method of microlens array sheet | |
| CN108873129A (en) | Reflector plate, side entrance back module and liquid crystal display | |
| KR101769971B1 (en) | Light guide plate and display device having the same | |
| CN107438905B (en) | Light emitting device array and lighting system including the same | |
| CN212965726U (en) | Projection device, vehicle and electronic product | |
| CN210720955U (en) | Backlight module and display device | |
| CN100483214C (en) | Assembled uniform area light source | |
| CN103221848A (en) | Optical sheet, optical unit and lighting device using the same | |
| KR101402814B1 (en) | Lamp device within resin layer for light-guide and LCD using the same | |
| CN112034672A (en) | Head-up display device and motor vehicle | |
| CN111025642B (en) | Collimating lens and micro-array Fresnel lens combined HUD backlight system | |
| JP6995958B2 (en) | Lighting equipment | |
| CN100419530C (en) | Area light source device and liquid crystal display | |
| CN216248694U (en) | Light splitting film and Mini LED backlight module | |
| CN106249483B (en) | Backlight display module structure and display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee after: Jiangxi oumaisi Microelectronics Co., Ltd Address before: 330000 east of Xueyuan 6th Road, south of Tianxiang Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee before: Oufei Microelectronics Technology Co.,Ltd. |