CN116684557A - Projection display device and projection control method for projection display device - Google Patents
Projection display device and projection control method for projection display device Download PDFInfo
- Publication number
- CN116684557A CN116684557A CN202210163576.4A CN202210163576A CN116684557A CN 116684557 A CN116684557 A CN 116684557A CN 202210163576 A CN202210163576 A CN 202210163576A CN 116684557 A CN116684557 A CN 116684557A
- Authority
- CN
- China
- Prior art keywords
- projection
- user
- display device
- unit
- center line
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 35
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000010586 diagram Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 230000004069 differentiation Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
Abstract
The present invention provides a projection display device, comprising: a projection unit for projecting an image, which includes at least an operation icon, onto a projection surface in a beam irradiation form; a user position detecting unit that detects whether or not a user is present at a position in a first direction intersecting the virtual center line with respect to the virtual center line of the light beam irradiated from the projecting unit; and a projection control unit for controlling the projection position of the operation icon on the projection surface, wherein the projection control unit projects the operation icon on the side of the user position relative to the virtual center line according to the user position detected by the user position detection unit. According to the invention, the projection position of the operation icon in the projection picture is determined through the position relation among the projection unit, the user and the projection surface, so that the user can be prevented from shielding the light beam which is irradiated by the projection unit and contains the operation icon when the user operates the operation icon, the operation of the user on the operation icon is facilitated, and the use performance of a product is greatly improved.
Description
Technical Field
The present invention relates to a projection display device and a projection control method for the projection display device, and more particularly, to a projection display device capable of projecting an operation icon screen and a projection control method for the projection display device.
Background
With the rapid development of electronic technology and the increasing demands of consumers for differentiation of electronic products, the current variety of electronic consumer products has a tendency to be diversified and more personalized. For example, some mobile electronic products such as smartphones or tablet computers in the market at present have a projection function, and can project a current display screen of the electronic product or an application screen in the electronic product onto a projection surface such as a wall or a projection curtain in a light projection manner, and can also project a screen of an operation icon, so that a user can not only see display information in the projection screen, but also operate the operation icon in the projection screen through finger clicking, sliding or gestures, and realize a function corresponding to the control operation icon.
The size of the projection picture can be adjusted through a picture stretching function on the electronic product, and also can be adjusted through changing the distance between the electronic product and the projection surface, and a user sets the projection picture according to the requirement of the user. When a user views a projection screen, if a person or an object exists between the projection light source and the projection surface, certain screen information in the projection screen may be blocked by a light shadow generated by the person or the object, so that part of information in the projection screen may be lost. Especially, when the user clicks the operation icon to perform the corresponding operation, the eyes see the projection picture of the operation icon on the projection surface, and when the user stretches his hand to perform the clicking operation, if the body or the arm of the user shields the projection light of the operation icon during the position movement, the picture of the operation icon on the projection surface disappears, and at the same time, the user cannot see the position of the operation icon to be clicked, and the operation cannot be performed.
In addition, if the user wants to see the projection screen of the operation icon again, the user needs to remove his body or his arm from the projection light of the operation icon and re-project the projection light of the operation icon onto the projection surface, but when the user wants to perform the clicking operation again, the user may block the projection light of the operation icon and still cannot perform the clicking operation. Or the user needs to adjust the body to avoid the projection light of the shielding operation icon, but the user needs to stretch the hand to click the operation icon, which is inconvenient and greatly influences the use experience of the user.
Disclosure of Invention
In view of the above-described problems in the prior art, an object of the present invention is to provide a projection display device and a projection control method for the projection display device, which facilitate a user to operate an operation icon during projection.
The projection display device of the present invention comprises: a projection unit for projecting an image including at least an operation icon onto a projection surface in a beam irradiation form; a user position detecting unit that detects whether or not a user is present at a position in a first direction intersecting with a virtual center line of the light beam irradiated from the projecting unit; and a projection control unit configured to control a projection position of the operation icon on the projection surface, wherein the projection control unit projects the operation icon on the user position side with respect to the virtual center line based on the user position detected by the user position detection unit.
According to the projection display device, when the projection unit projects the picture on the projection surface, the projection position of the operation icon in the projection picture can be determined through the position relation among the projection unit, the user and the projection surface, so that the user can be prevented from shielding the light beam containing the operation icon irradiated by the projection unit when the user operates the operation icon, the operation of the user on the operation icon is facilitated, and the use performance of a product is greatly improved.
The projection display device further includes: and a distance acquisition unit configured to acquire a distance between the user and the projection surface in a second direction intersecting the first direction, wherein the projection control unit does not control the projection position of the operation icon based on the user position detected by the user position detection unit when the distance acquired by the distance acquisition unit exceeds a predetermined distance.
The projection display device further includes: and an object detection unit configured to detect whether or not an object is present between the projection unit and the projection surface in the second direction, wherein the projection control unit is configured to project the operation icon to a position not covered by the object when the object is present.
In the projection display device, when the user position detecting means detects a plurality of user positions in the first direction, the projection control means selects a shortest user position from the plurality of user positions by the distance acquired by the distance acquiring means, and projects the operation icon on the shortest user position side with respect to the virtual center line based on the shortest user position.
The projection display device further includes: and a determination unit configured to determine whether or not the plurality of user positions are located on both sides with respect to the virtual center line in the first direction when the user position detection unit detects the plurality of user positions in the first direction, and to project the operation icons on both sides with respect to the virtual center line when the determination unit determines that the plurality of user positions are located on both sides with respect to the virtual center line.
In the projection display device, the user position detecting means may detect a distance from the virtual center line to the user position in the first direction, and the projection control means may project the operation icon in a predetermined distance from the user position toward the virtual center line in the first direction based on the distance from the virtual center line detected by the user position detecting means to the user position.
In the projection display device, the projection surface is an inner surface of a window provided in the vehicle.
In the projection display device, the projection unit is provided on a door of the vehicle.
In the projection display device, the projection unit may be movable between a use state in which the projection unit protrudes from the rear surface of the door and a storage state in which the projection unit is stored in a storage unit provided in the door.
The present invention also provides a projection control method for a projection display device, the projection display device including: a projection unit for projecting an image including at least an operation icon onto a projection surface in a beam irradiation form, the projection control method of a projection display device comprising: a user position detecting step of detecting whether or not a user is present at a position in a first direction intersecting with a virtual center line of the projection unit irradiation beam; and a projection control step of projecting the operation icon on the user position side with respect to the virtual center line based on the user position detected by the user position detection step.
According to the projection display device and the projection control method of the projection display device, when the projection unit projects the picture on the projection surface, the projection position of the operation icon in the projection picture can be determined through the position relation among the projection unit, the user and the projection surface, so that the user can be prevented from shielding the light beam containing the operation icon irradiated by the projection unit when the user operates the operation icon, the operation of the user on the operation icon is facilitated, and the use performance of a product is greatly improved.
Drawings
Fig. 1 is a block diagram of a projection display device 100A according to a first embodiment of the present invention.
Fig. 2 is a flowchart of a control method of the projection display device 100A according to the first embodiment of the present invention.
Fig. 3 is a schematic view of a display state of a projection display device 100A according to a first embodiment of the present invention.
Fig. 4 is a block diagram of a projection display device 100B according to a second embodiment of the present invention.
Fig. 5 is a flowchart of a control method of the projection display device 100B according to the second embodiment of the present invention.
Fig. 6 is a flowchart of a control method of the projection display device 100B according to the modification of the second embodiment of the present invention.
Fig. 7 is a schematic view showing a display state of a projection display device 100B according to a modification of the second embodiment of the present invention.
Fig. 8 is a block diagram showing a configuration of a projection display device 100C according to another modification of the second embodiment of the present invention.
Fig. 9 is a block diagram of a projection display device 100D according to a third embodiment of the present invention.
Fig. 10 is a flowchart of a control method of a projection display device 100D according to a third embodiment of the present invention.
Fig. 11 is a schematic diagram of a display state of a projection display device 100D according to a third embodiment of the present invention.
Fig. 12 is a flowchart of a control method of a projection display device according to a fourth embodiment of the present invention.
Fig. 13 is a schematic view of the projection display device of the present invention when mounted on a vehicle door.
Detailed Description
The present invention will be described in more detail below with reference to the drawings, embodiments and specific examples. The following description is merely an example for facilitating understanding of the present invention, and is not intended to limit the scope of the present invention. In a specific embodiment, the components of the apparatus may be changed, deleted or added according to the actual situation, and the steps of the method may be changed, deleted, added or added according to the actual situation.
(first embodiment)
First, a projection display device 100A according to a first embodiment of the present invention will be described in detail with reference to fig. 1 to 3. Fig. 1 is a block diagram showing a configuration of a projection display device 100A according to the present embodiment, and the projection display device 100A according to the present embodiment includes: projection unit 1, user position detection unit 2, and projection control unit 3.
The projection unit 1 projects an image onto a projection surface in a beam irradiation form, and the projection unit 1 includes: the liquid crystal display device comprises a light source, a liquid crystal panel, a plane mirror and a concave mirror, wherein the liquid crystal panel is used for receiving light emitted by the light source, the plane mirror is used for reflecting the light transmitted by the liquid crystal panel, and the concave mirror is used for amplifying and reflecting the light reflected by the plane mirror. The projection screen includes at least a screen including an operation icon that can be clicked or slid, and the user can perform an operation of a corresponding function by touching the operation icon in the projection screen with a finger.
The touchable projection of the operation icons can be realized by a multi-touch technology, namely, the positions clicked by the infrared cameras are collected and transmitted to the computer processor by the data acquisition card, the physical coordinates are converted into logical coordinates and control instructions of the computer screen by the image recognition software, then the projector is controlled to play files by the dynamic demonstration software system, multimedia demonstration is carried out on the recognized coordinates, and the control of opening an interface, converting pictures, inquiring information and the like is realized.
In addition, the projection surface can be a special projection curtain or a flat wall surface, at least the light emitted by the projection unit 1 cannot penetrate the projection surface, reflection of the light cannot be realized, and reflection phenomenon caused by strong light irradiation is avoided, so that a user cannot watch a projection picture on the projection surface.
The user position detecting means 2 is constituted by an application specific integrated circuit or a CPU function module, and detects whether or not a user is present at a position in a first direction intersecting the virtual center line of the light beam with respect to the virtual center line of the light beam irradiated from the projection means 1. The virtual center line may be a straight line drawn from the center of the projection lens of the projection unit 1 perpendicularly to the projection lens, or may be a line connecting the center point to the projection lens when the center point is obtained on the projection screen.
Here, the detection is performed by a gravity sensor device attached to the seat or the floor in the first direction in which the virtual center lines intersect, and when the gravity exceeding the predetermined weight or more is detected, it is determined that the user is on the seat or the floor, or the image recognition may be performed by a professional camera to detect whether the user is present.
The projection control unit 3 is composed of a general computer, and has therein, for example, CPU, ROM, EEPROM, RAM, I/O and a bus (not shown) for connecting these components. The projection control unit 3 controls the projection position of the operation icon on the projection surface, and projects the operation icon on the user position side with respect to the virtual center line based on the user position detected by the user position detection unit 2.
Next, a control method of the projection display device 100A according to the first embodiment will be described in detail with reference to fig. 2 and 3. Fig. 2 is a flowchart of a control method of the projection display device 100A according to the first embodiment, and fig. 3 is a schematic diagram of a display state of the projection display device 100A according to the first embodiment.
As shown in fig. 3, the projection display device 100A is turned on in the projection mode, and projects an image onto the projection surface 10 (step S101 in fig. 2), the size of the projection screen can be adjusted by the projection focal length of the projection display device 100A, the virtual line between the four corners of the projection screen and the projection display device 100A represents the projection range of the projection light, and the virtual center line 12 is a virtual line from the projection display device 100A and the central point of the projection range.
The first direction 13 is a direction intersecting the virtual center line 12, and the object recognition camera determines whether or not the user 20 is present in the first direction 13 (step S102 in fig. 2), and when the presence of the user 20 is detected (yes in step S102), the process proceeds to step S103, otherwise, that is, when the presence of the user 20 is not detected (no in step S102), the process returns to step S102, and the determination process is again performed.
Here, the imaging angle and the recognition range of the object recognition camera may be set according to the position of the first direction 13, and the image outside the set range may not be subjected to the recognition processing. In the present invention, whether the user 20 is present may be detected by a gravity sensing device provided on the ground or the seat, and in the first direction 13, when the gravity detected by the gravity sensing device increases from 0 to or above a predetermined gravity, it may be determined that the user 20 is present.
In step S103, the operation icon 11 on the projection screen is projected on the user 20 side with respect to the virtual center line 12. The presence of the user 20 is detected in the first direction 13, and the positional relationship between the user 20 and the virtual center line 12 is also detected, and as shown in fig. 3, the user 20 is positioned on the right side of the virtual center line 12 with respect to the virtual center line 12, and the operation icon 11 for operating the projection screen is projected on the projection screen positioned on the right side of the virtual center line 12 under the control of the projection control unit 3. Thus, with respect to the virtual center line 12, the user 20 and the operation icon 11 are both located on the same side, and the user 20 does not need to extend the body or the arm beyond the virtual center line 12 to the left side of the virtual center line 12 for the operation of the operation icon 11, so that the problem that the display of the projection picture is affected due to the user 20 is greatly reduced, the operation of the user 20 on the operation icon 11 is facilitated, the projection picture is prevented from being blocked, and the normal display is affected.
(second embodiment)
Next, with reference to fig. 4 to 8, projection display devices 100B and 100C according to a second embodiment of the present invention will be described in detail.
As shown in fig. 4, the block diagram of the projection display device 100B further includes, as compared to the projection display device 100A of the first embodiment: the distance acquiring unit 4 acquires a distance between the user 20 and the projection surface 10 in the second direction 14 intersecting the first direction 13. In the present embodiment, the distance between the user 20 and the projection surface 10 is acquired by a distance sensing device. Here, the distance between the user 20 and the projection surface 10 may be a vertical distance at which the user 20 vertically projects on the projection surface 10, or may be a distance from the user 20 to the projection surface 10 at a predetermined angle.
Fig. 5 is a flowchart of a display control method of the projection display device 100B according to the second embodiment, and as shown in the drawing, step S201 and step S202 are the same as step S101 and step S102 in the first embodiment, and are not described here. When the user position detection unit 2 detects that the user 20 is present in the first direction 13 (yes in step S202), the process proceeds to step S203, and in step S203, it is determined whether or not the distance between the user 20 and the projection surface 10 acquired by the distance acquisition unit 4 is within a predetermined distance range, and when the distance is within the predetermined distance range (yes in step S203), the process proceeds to step S204, and otherwise, that is, when the distance is outside the predetermined distance range (no in step S203), the process returns to step S203, and the determination process is again performed.
Here, the prescribed distance may be set according to the average length of the average adult's hand, slightly longer than the length of the hand, or a prescribed distance is preset which is approximately 3 times the average pace of the average adult, within which the user 20 is likely to operate the operation icon 11. The determination as to whether or not the distance between the user 20 and the projection surface 10 is within a predetermined range may be performed in real time or at a fixed time interval.
When the distance between the user 20 and the projection surface 10 is within the predetermined range, the process proceeds to step S204, where the operation icon 11 is projected on the user 20 side with respect to the virtual center line 12. When the distance between the user 20 and the projection surface 10 exceeds the predetermined range, the projection position of the operation icon 11 is not controlled, and the operation icon 11 can be projected on the position preset for the operation icon 11. In this way, the processing load of the projection display device 100B can be reduced, and since the possibility that the user 20 outside the predetermined range operates the operation icon 11 is small, the processing efficiency of the projection display device 100B is greatly improved.
As shown in fig. 6, when the user position detecting unit 2 detects the presence of a plurality of users in the first direction 13 (step S302 is "a plurality"), the routine proceeds to step S303, and when one user presence is detected in the first direction 13 (step S302 is "a single"), the routine proceeds to step S305, and when no user presence is detected in the first direction 13 (step S302 is "no"), the routine returns to step S302, and the determination process is again performed.
Also, when the presence of a plurality of users in the first direction 13 is detected by the object recognition camera or the gravity sensing device, the distance between each user and the projection surface 10 is acquired by the distance acquisition unit 4 in step S303. As shown in fig. 7, the user position detecting unit 2 detects two users 20 and 20' in the first direction 13, the distance detecting unit 4 detects the distance between the users 20 and 20' and the projection surface 10, and the distances between the users 20 and 20' and the projection surface 10 are compared.
In step S304, the projection control unit 3 projects the operation icon 11 on the user 20 side with respect to the virtual center line 12. The user 20 is closer to the projection surface 10 than the user 20', and is more likely to operate the operation icon 11, greatly improving the processing efficiency of the projection display device 100B.
On the other hand, when it is detected that one user is present (one in step S302), the process proceeds to step S305, and the process of step S305 is the same as that of step S103 in the first embodiment, and a detailed description thereof will be omitted.
As shown in fig. 8, the projection display device 100C according to the modification of the second embodiment further includes, as compared to the projection display device 100B: the object detection unit 5 detects whether or not an object exists between the projection unit 1 and the projection surface 10 in the second direction 14. Here, the object to be detected may be the user 20, or the object to be placed, or the like, and the image pickup device detects the object, and when the object is present, the projection control unit 3 controls the projection control unit to project the operation icon 11 to a position not covered by the object, that is, to project the object where the light of the operation icon 11 is detected by avoiding the projection, so that the normal display of the operation icon 11 on the projection screen is not affected.
Here, the projection control unit 3 may control the projection angle of the operation icon 11 to bypass the object area according to the detected height and shielding area of the object. The position where the operation icon 11 is located to avoid the shadow may be controlled by the projection control unit 3 according to the position of the shadow of the object projected on the projection screen.
(third embodiment)
Next, a projection display device 100D according to a third embodiment of the present invention will be described in detail with reference to fig. 9 to 11.
As shown in the block diagram of the projection display device 100D of fig. 9, the projection display device 100A of the first embodiment further includes: the judgment unit 6 judges whether or not the plurality of user positions are on both sides with respect to the virtual center line 12 in the first direction 13 when the user position detection unit 2 detects the plurality of user positions in the first direction 13.
Fig. 10 is a flowchart of a display control method of the projection display device 100D according to the third embodiment, and as shown in the drawing, step S401 and step S402 are the same as step S301 and step S302 in the second embodiment, and are not described here again. When the user position detecting unit 2 detects the presence of a plurality of users in the first direction 13 (a plurality of users in step S402), the routine proceeds to step S403, and when a single user is detected to be present in the first direction 13 (a single user in step S402), the routine proceeds to step S405, and when no user is detected to be present in the first direction 13 (a none user in step S402), the routine returns to step S402, and the determination process is again performed.
Also, when the presence of a plurality of users in the first direction 13 is detected by the object recognition camera or the gravity sensing device, in step S403, it is determined by the determination unit 6 whether the plurality of users are on both sides with respect to the virtual center line 12. If the plurality of user positions are on both sides with respect to the virtual center line 12 (yes in step S403), the flow proceeds to step S404, otherwise, if the plurality of user positions are on the same side with respect to the virtual center line 12 (no in step S403), the flow proceeds to step S405.
When the judgment unit 6 judges that the plurality of user positions are on both sides with respect to the virtual center line 12, as shown in fig. 11, the users 20 and 20' are present on both sides of the virtual center line 12, respectively, and the projection control unit 3 controls to project the operation icons 11 on both sides of the virtual center line 12, respectively. Thus, when users are present on both sides of the virtual center line 12, the users on both sides can operate the operation icon 11 on the side close to the users, thereby facilitating the user operation and preventing the problem that the projection screen is blocked.
Here, when determining whether or not the plurality of user positions are on both sides with respect to the virtual center line 12, it is determined whether or not the plurality of user positions are on both sides of a vertical line perpendicular to the virtual center line 12 projected on the projection surface 10, with the vertical line as a reference.
(fourth embodiment)
Next, a projection display device according to a fourth embodiment of the present invention will be described in detail with reference to fig. 12. Fig. 12 is a flowchart of a control method of the projection display device according to the fourth embodiment, and as shown in the drawing, step S501 and step S502 are the same as step S101 and step S102 in the first embodiment, and are not described here again. When the user position detecting means 2 detects the presence of a user (yes in step S502), the distance from the user to the virtual center line 12 is acquired in the first direction 13 in step S503, and the projection control means 3 controls the projection control means to project the operation icon 11 within a predetermined distance from the user 20 toward the virtual center line 12.
Here, the distance between the user 20 and the virtual center line 12 can be acquired by the distance acquisition unit 4, and a predetermined distance between the operation icon 11 and the user 20 is set according to the acquired distance. The predetermined distance is a distance from the user 20 toward the virtual center line 12, and in the present invention, the user 20 is directed toward the virtual center line 12 based on a vertical projection of the user 20 on the virtual center line 12, that is, a vertical projection of the user 20 toward the user 20 on the virtual center line 12, or a range of the user 20 toward the virtual center line 12 only for the face or the upper body. In addition, the predetermined distance cannot exceed the distance between the user 20 and the virtual center line 12, so that the user 20 does not need to perform a large-scale operation, and the user can operate the operation icon 11 within the reach of the user, thereby greatly improving the feeling of experience and convenience.
In addition to the above embodiments, the projection display device of the present invention may be mounted on a door of a vehicle, and as shown in fig. 13, the projection display device 100 may be moved between a use state in which it protrudes from the inside of the door 15 and a storage state in which it is stored in a storage unit provided in the door 15. When the projection display device 100 is used, the vehicle door 15 is reversed upward and rotated to a position substantially perpendicular to the vehicle door 15, and the vehicle door is put into use. Here, the rotation of the projection display device 100 may be an automatic rotation method using a motor or a manual rotation method manually operated by a user.
The projection surface 10 may be a window provided on the same side as the projection display device 100, and the window may be made of a specific material, and may be automatically detected or manually changed in transparency and color according to the need, for example, when sunlight is strongly irradiated, the window may be automatically darkened to shade the color of the window glass, or when the projection display device 100 is in use for projection, the window may be automatically switched to the projection curtain mode for displaying the projection screen of the projection display device 100.
The projection display device according to the present invention is not limited to the above embodiments, and is applicable to all projection display devices that perform projection in conference rooms, households, theatres, and the like.
The above description of the embodiments and examples of the present invention makes reference to the accompanying drawings. The foregoing embodiments and examples are merely specific examples of the present invention, and are not intended to limit the scope of the present invention. Those skilled in the art can make various modifications, combinations, and reasonable omissions of the elements and the embodiments based on the technical ideas of the present invention, and the manner in which they are obtained is also included in the scope of the present invention. For example, the above embodiments and specific examples may be combined with each other, and the combined embodiments are also included in the scope of the present invention.
Claims (10)
1. A projection display device, comprising:
a projection unit for projecting an image including at least an operation icon onto a projection surface in a beam irradiation form;
a user position detecting unit that detects whether or not a user is present at a position in a first direction intersecting with a virtual center line of the light beam irradiated from the projecting unit;
and a projection control unit configured to control a projection position of the operation icon on the projection surface, wherein the projection control unit projects the operation icon on the user position side with respect to the virtual center line based on the user position detected by the user position detection unit.
2. The projection display device of claim 1, further comprising:
a distance acquisition unit configured to acquire a distance between the user and the projection surface in a second direction intersecting the first direction,
when the distance acquired by the distance acquisition unit exceeds a predetermined distance, the projection control unit does not control the projection position of the operation icon according to the user position detected by the user position detection unit.
3. The projection display device of claim 2, further comprising:
an object detection unit configured to detect whether or not an object exists between the projection unit and the projection surface in the second direction,
when an object is present, the projection control unit projects the operation icon to a position not covered by the object.
4. The projection display device of claim 2, wherein the display device further comprises a display module,
when the user position detecting means detects a plurality of user positions in the first direction, the projection control means selects a shortest user position from the plurality of user positions by the distance acquired by the distance acquiring means, and projects the operation icon on the shortest user position side with respect to the virtual center line based on the shortest user position.
5. The projection display device of claim 1, further comprising:
a judging unit configured to judge whether or not the plurality of user positions are located on both sides with respect to the virtual center line in the first direction when the user position detecting unit detects the plurality of user positions in the first direction,
when the judgment unit judges that the plurality of user positions are on both sides with respect to the virtual center line, the projection control unit projects the operation icons on both sides with respect to the virtual center line, respectively.
6. The projection display device of claim 1, wherein the display device further comprises a display module,
the user position detecting means may detect a distance from the virtual center line to the user position in the first direction, and the projection control means may project the operation icon in the first direction within a predetermined distance from the user position to the virtual center line based on the distance from the virtual center line detected by the user position detecting means to the user position.
7. The projection display device of any one of claims 1-6, wherein,
the projection surface is an inner surface of a window provided in a vehicle.
8. The projection display device of any one of claims 1-6, wherein,
the projection unit is provided on a door of a vehicle.
9. The projection display device of claim 8,
the projection unit is movable between a use state in which the projection unit protrudes from the rear surface of the door and a storage state in which the projection unit is stored in a storage unit provided in the door.
10. A projection control method for a projection display device, the projection display device comprising: a projection unit for projecting an image including at least an operation icon onto a projection surface in a beam irradiation form,
the projection control method of the projection display device is characterized by comprising the following steps:
a user position detecting step of detecting whether or not a user is present at a position in a first direction intersecting with a virtual center line of a light beam irradiated from a projection unit;
and a projection control step of projecting the operation icon on the user position side with respect to the virtual center line based on the user position detected by the user position detection step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210163576.4A CN116684557A (en) | 2022-02-22 | 2022-02-22 | Projection display device and projection control method for projection display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210163576.4A CN116684557A (en) | 2022-02-22 | 2022-02-22 | Projection display device and projection control method for projection display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116684557A true CN116684557A (en) | 2023-09-01 |
Family
ID=87785988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210163576.4A Pending CN116684557A (en) | 2022-02-22 | 2022-02-22 | Projection display device and projection control method for projection display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116684557A (en) |
-
2022
- 2022-02-22 CN CN202210163576.4A patent/CN116684557A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11470377B2 (en) | Display apparatus and remote operation control apparatus | |
| CN107426889B (en) | Intelligent lighting device | |
| US6297804B1 (en) | Pointing apparatus | |
| US8670632B2 (en) | System for reducing effects of undesired signals in an infrared imaging system | |
| US7787706B2 (en) | Method for controlling an intensity of an infrared source used to detect objects adjacent to an interactive display surface | |
| US9728163B2 (en) | Operation mode switching method and electronic device | |
| US7535463B2 (en) | Optical flow-based manipulation of graphical objects | |
| KR101531070B1 (en) | Detecting finger orientation on a touch-sensitive device | |
| EP2687959A1 (en) | Detection device, input device, projector, and electronic apparatus | |
| EP3208699B1 (en) | Control device, control method, and program | |
| EP3015961A1 (en) | Information processing device, control method, program, and storage medium | |
| JP2012238293A (en) | Input device | |
| US20230164427A1 (en) | Focusing method, device, and computer-readable storage medium | |
| JP7369834B2 (en) | display device | |
| EP3076272B1 (en) | Content display control method and system based on detecting the reflection of a beam of light | |
| TW202004432A (en) | Electronic device and operation control method thereof | |
| CN116684557A (en) | Projection display device and projection control method for projection display device | |
| KR20040100122A (en) | Display apparatus for mobile phone and the method of same | |
| US9395895B2 (en) | Display method and apparatus, and electronic device | |
| US20150205374A1 (en) | Information processing method and electronic device | |
| CN108224786B (en) | Integrated projection water heater, projection control method and readable storage medium | |
| CN213126265U (en) | Projection system and projection display system | |
| KR102257766B1 (en) | Fingerprint recognition system and method using touchscreen and actuator | |
| JP2021036440A (en) | Information processing apparatus | |
| KR20160045945A (en) | Bidirectional interactive user interface based on projector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |