CN106488206A - Projection display apparatus and its auto focusing method - Google Patents
Projection display apparatus and its auto focusing method Download PDFInfo
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- CN106488206A CN106488206A CN201611015801.0A CN201611015801A CN106488206A CN 106488206 A CN106488206 A CN 106488206A CN 201611015801 A CN201611015801 A CN 201611015801A CN 106488206 A CN106488206 A CN 106488206A
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- 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
- H04N9/317—Convergence or focusing systems
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Abstract
The present invention relates to display device technology.The present invention is to solve the awkward problem of existing projection display apparatus, there is provided a kind of projection display apparatus and its auto focusing method, its technical scheme can be summarized as：Projection display apparatus, including bare engine module, display control unit, signal processing unit, horizon sensor, range unit, actuating device and focus adjustment unit, bare engine module is connected with display control unit, display control unit is connected with signal processing unit, and horizon sensor, range unit, actuating device and focus adjustment unit are connected with signal processing unit respectively.The invention has the beneficial effects as follows, facilitate user it is adaptable to projection display apparatus.
Description
Technical field
The present invention relates to the technology of display device, particularly to the technology of projection display apparatus.
Background technology
Projection display apparatus have the advantages that lightweight portable, are applied to a lot of mobile display fields, apply every time meanwhile
When there is the situation needing to adjust display distance and focal length, directly influence display effect using front adjustment situation, deposit at present
In problems with：1st, when projection display apparatus are put from requiring levelness different, Projection Display region shape out is not advise
Tetragon then, the focusing effect of image upper, middle and lower part can not reach most preferably simultaneously；2nd, projection display apparatus are put and are shown
During panel out of plumb, Projection Display region shape out is also irregular tetragon, the focusing effect of the left right half of image
Fruit can not reach optimal simultaneously；3rd, after projection display apparatus carry out viewing area scaling, need to readjust lens focus, image
Brightness is also required to readjust, using inconvenience.
Content of the invention
The invention aims to solving the awkward problem of current projection display apparatus, there is provided a kind of Projection Display
Equipment and its auto focusing method.
The present invention solves its technical problem, employed technical scheme comprise that, projection display apparatus, including bare engine module, display
Control unit and signal processing unit, described bare engine module is connected with display control unit, display control unit and signal processing
Unit connects it is characterised in that also including horizon sensor, range unit, actuating device and focus adjustment unit, described level
Sensor, range unit, actuating device and focus adjustment unit are connected with signal processing unit respectively,
Described signal processing unit is used for receiving video signal, and is sent to display control unit after it is processed,
Receive the horizontal data of horizon sensor and the ranging data receiving range unit, controlled according to this horizontal data and ranging data
Actuator movement, to adjust the horizontal and vertical state change of the bare engine module being connected with actuating device, makes the throwing of bare engine module
Penetrate light corresponding with display floater, and focus adjustment unit is controlled according to this horizontal data and ranging data and then controls with it even
The focusing of the projection light of the bare engine module connecing；
The video signal that described display control unit is used for that signal processing unit is sent carries out showing that driving is processed, and obtains
To picture signal, and picture signal is sent to bare engine module；
Described bare engine module is used for receiving the picture signal that display control unit sends, after passing it through the light path of itself
Send corresponding projection light, its focusing is controlled by focus adjustment unit；
Described horizon sensor is used for measuring present level state, obtains horizontal data and is sent to signal processing unit；
Described range unit is used for the distance between projection light light-emitting window and display floater of multimetering bare engine module, obtains
To ranging data and be sent to signal processing unit；
Described actuating device is used for the control campaign according to signal processing unit, thus driving connected ray machine
The horizontal and vertical state change of module；
Described focus adjustment unit is used for adjusting connected bare engine module according to the control of signal processing unit
The focusing of projection light.
Specifically, described bare engine module includes light source driving units, light source and ray machine unit, described light source driving units with
Light source connects, and light source is connected with ray machine unit, and ray machine unit is connected with display control unit,
The signal that described light source is used for according to light source driving units provides the light source of projection light for ray machine unit；
Described light source driving units are used for providing light source drive signal according to display sequential to light source；
Described ray machine unit is used for receiving the picture signal that display control unit sends, after passing it through the light path of itself
Send corresponding projection light, its focusing is controlled by focus adjustment unit.
Further, described ray machine unit includes amasthenic lens, and the projection light that ray machine unit sends is all through amasthenic lens
Launched, amasthenic lens can adjust the focusing of the projection light that ray machine unit sends.
Specifically, described focus adjustment unit is lens motor, and described lens motor includes electric control part and running part,
Described electric control part is electrically connected with signal processing unit, running part and amasthenic lens physical connection,
The control that described electric control part is used for receipt signal processing unit exports its transmission data to running part；
Described running part is driven according to the transmission data receiving thus being driven amasthenic lens adjustment ray machine unit
The focusing of the projection light sending.
Further, described range unit passes through 3 points of the left, center, right distance measuring method vertical ranging data of collection, and passes through
3 points of distance measuring methods of upper, middle and lower gather horizontal ranging data.
The auto focusing method of projection display apparatus, is applied to above-mentioned projection display apparatus it is characterised in that including following
Step：
Step 1, projection display apparatus start；
Step 2, projection display apparatus gather its horizontal data and the ranging data and display floater between；
Step 3, projection display apparatus according to the horizontal data being gathered and with ranging data control actuator movement with
Adjust the horizontal and vertical state change of the bare engine module being connected with actuating device, make projection light and the display floater of bare engine module
Corresponding；
Step 4, projection display apparatus according to this horizontal data and ranging data control focus adjustment unit so that control with
The focusing of its projection light of bare engine module connecting.
Specifically, in step 2, described ranging data and display floater between is to be adopted by 3 points of left, center, right distance measuring method
Collect vertical ranging data, and obtained by the horizontal ranging data of 3 points of distance measuring method collections of upper, middle and lower.
Further, in step 3, described projection display apparatus according to the horizontal data being gathered and with ranging data control
The method of the horizontal and vertical state change to adjust the bare engine module being connected with actuating device for the actuator movement is：First basis
The horizontality change that horizontal data controls actuator movement to adjust the bare engine module being connected with actuating device turns to level, then
Judge the perpendicularity of projection light and display floater according to vertical ranging data, and then transmission is controlled according to default standard vertical degree
Device motion is changed with the plumbness adjusting the bare engine module being connected with actuating device, judges projection according to horizontal ranging data
Levelness between light and display floater, and then actuator movement is controlled to adjust and to be driven according to default standard water Pingdu
The horizontality change of the bare engine module that device connects.
Specifically, in step 4, described according to this horizontal data and ranging data control focus adjustment unit so that control with
The method of the focusing of the projection light of bare engine module that it connects is：Adjusted according to default focusing of horizontal data and ranging data inquiry
Section table, obtains corresponding focus adjustment data, controls focus adjustment unit according to this focus adjustment data and then controls with it even
The focusing of the projection light of the bare engine module connecing.
The invention has the beneficial effects as follows, in the present invention program, by above-mentioned projection display apparatus and its automatic focusing side
Method, can automatically adjust the position relationship (levelness and perpendicularity) of projection light and display floater in projection display apparatus, and energy
Enough automatically adjust focusing, facilitate user.
Brief description
Fig. 1 is the system block diagram of projection display apparatus in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment, describe technical scheme in detail.
The projection display apparatus of the present invention, including bare engine module, display control unit, signal processing unit, horizontal sensor
Device, range unit, actuating device and focus adjustment unit, bare engine module is connected with display control unit, display control unit with
Signal processing unit connect, horizon sensor, range unit, actuating device and focus adjustment unit respectively with signal processing unit
Connect, wherein, signal processing unit is used for receiving video signal, and be sent to display control unit after it is processed, connect
Receive the horizontal data of horizon sensor and the ranging data receiving range unit, controlled according to this horizontal data and ranging data and pass
Dynamic device is moved to adjust the horizontal and vertical state change of the bare engine module being connected with actuating device, makes the projection of bare engine module
Light is corresponding with display floater, and controls focus adjustment unit according to this horizontal data and ranging data and then control connected
The projection light of bare engine module focusing；Display control unit is used for the video signal that signal processing unit sends is shown
Show that driving is processed, obtain picture signal, and picture signal is sent to bare engine module；Bare engine module is used for receiving display control list
The picture signal that unit sends, sends corresponding projection light after the light path passing it through itself, and it focuses on and is subject to focus adjustment unit
Control；Horizon sensor is used for measuring present level state, obtains horizontal data and is sent to signal processing unit；Range unit
The distance between projection light light-emitting window for multimetering bare engine module and display floater, obtain ranging data and are sent to letter
Number processing unit；Actuating device is used for the control campaign according to signal processing unit, thus driving connected ray machine
The horizontal and vertical state change of module；Focus adjustment unit is connected for being adjusted according to the control of signal processing unit
The projection light of bare engine module focusing.
The auto focusing method of the projection display apparatus of the present invention, is applied to above-mentioned projection display apparatus, projects aobvious first
Show that equipment starts, then gather its horizontal data and the ranging data and display floater between, further according to the number of levels being gathered
According to and with ranging data control actuator movement to adjust the horizontal and vertical state of the bare engine module being connected with actuating device
Change, makes the projection light of bare engine module corresponding with display floater, controls finally according to this horizontal data and ranging data and focuses on
The focusing of the projection light of adjustment unit and then the connected bare engine module of control.
Embodiment
Projection display apparatus in the embodiment of the present invention, its system block diagram referring to Fig. 1, including bare engine module, display control
Unit, signal processing unit, horizon sensor, range unit, actuating device and focus adjustment unit, bare engine module and display control
Unit processed connects, and display control unit is connected with signal processing unit, horizon sensor, range unit, actuating device and focusing
Adjustment unit is connected with signal processing unit respectively.
Wherein, signal processing unit is used for receiving video signal, and is sent to display control unit after it is processed,
Receive the horizontal data of horizon sensor and the ranging data receiving range unit, controlled according to this horizontal data and ranging data
Actuator movement, to adjust the horizontal and vertical state change of the bare engine module being connected with actuating device, makes the throwing of bare engine module
Penetrate light corresponding with display floater, and focus adjustment unit is controlled according to this horizontal data and ranging data and then controls with it even
The focusing of the projection light of the bare engine module connecing.
The video signal that display control unit is used for that signal processing unit is sent carries out showing that driving is processed, and obtains figure
As signal, and picture signal is sent to bare engine module.
Bare engine module is used for receiving the picture signal that display control unit sends, and sends after the light path passing it through itself
Corresponding projection light, its focusing is controlled by focus adjustment unit.Bare engine module can include light source driving units, light source and light
Machine unit etc., light source driving units are connected with light source, and light source is connected with ray machine unit, and ray machine unit is with display control unit even
Connect, here, the signal that light source is used for according to light source driving units provides the light source of projection light for ray machine unit；Light source driving units
For providing light source drive signal according to display sequential to light source；Ray machine unit is used for receiving the figure that display control unit sends
As signal, send corresponding projection light after the light path passing it through itself, its focusing is controlled by focus adjustment unit.Ray machine list
Unit typically also includes amasthenic lens, and the projection light that ray machine unit sends all is launched through amasthenic lens, and amasthenic lens can
The focusing of the projection light that adjustment ray machine unit sends.
Horizon sensor is used for measuring present level state, obtains horizontal data and is sent to signal processing unit.
Range unit is used for the distance between projection light light-emitting window and display floater of multimetering bare engine module, is surveyed
Give signal processing unit away from Data Concurrent.Range unit can gather vertical ranging data using 3 points of left, center, right distance measuring method,
And gather horizontal ranging data using 3 points of distance measuring methods of upper, middle and lower.
Actuating device is used for the control campaign according to signal processing unit, thus driving connected bare engine module
Horizontal and vertical state change.
Focus adjustment unit is used for adjusting the projection of connected bare engine module according to the control of signal processing unit
The focusing of light.Focus adjustment unit can be lens motor, and lens motor then includes electric control part and running part, electric control part
Electrically connect with signal processing unit, running part and amasthenic lens physical connection, here, electric control part is used for receipt signal and processes
The control of unit exports it to running part and is driven data；And running part is driven according to the transmission data receiving thus
Amasthenic lens is driven to adjust the focusing of the projection light that ray machine unit sends.
During use, including step in detail below：
Step 1, projection display apparatus start.
Step 2, projection display apparatus gather its horizontal data and the ranging data and display floater between.
In this step, the ranging data between display floater can be by the vertical range finding of 3 points of left, center, right distance measuring method collection
Data, and obtained by the horizontal ranging data of 3 points of distance measuring method collections of upper, middle and lower, that is, ranging data include vertically finding range number
According to and horizontal ranging data.
Step 3, projection display apparatus according to the horizontal data being gathered and with ranging data control actuator movement with
Adjust the horizontal and vertical state change of the bare engine module being connected with actuating device, make projection light and the display floater of bare engine module
Corresponding.
In this step, projection display apparatus control actuator movement according to the horizontal data being gathered and with ranging data
With the method adjusting the horizontal and vertical state change of bare engine module being connected with actuating device can be：First according to horizontal data
The horizontality change controlling actuator movement to adjust the bare engine module being connected with actuating device turns to level, further according to vertical
Ranging data judges the perpendicularity of projection light and display floater, and then controls actuator movement according to default standard vertical degree
To adjust the plumbness change of the bare engine module being connected with actuating device, projection light and display are judged according to horizontal ranging data
Levelness between panel, and then control actuator movement to be connected with actuating device to adjust according to default standard water Pingdu
Bare engine module horizontality change.
Step 4, projection display apparatus according to this horizontal data and ranging data control focus adjustment unit so that control with
The focusing of its projection light of bare engine module connecting.
In this step, focus adjustment unit is controlled according to this horizontal data and ranging data and then controls connected light
The method of the focusing of the projection light of machine module can be：Default focus adjustment table is inquired about according to horizontal data and ranging data,
Obtain corresponding focus adjustment data, focus adjustment unit is controlled according to this focus adjustment data and then controls connected light
The focusing of the projection light of machine module.
Claims (9)
1. projection display apparatus, including bare engine module, display control unit and signal processing unit, described bare engine module and display
Control unit connects, and display control unit is connected with signal processing unit it is characterised in that also including horizon sensor, range finding
Device, actuating device and focus adjustment unit, described horizon sensor, range unit, actuating device and focus adjustment unit are divided
It is not connected with signal processing unit,
Described signal processing unit is used for receiving video signal, and is sent to display control unit after it is processed, and receives
The horizontal data of horizon sensor and the ranging data receiving range unit, control transmission according to this horizontal data and ranging data
Device is moved to adjust the horizontal and vertical state change of the bare engine module being connected with actuating device, makes the projection light of bare engine module
Corresponding with display floater, and focus adjustment unit is controlled according to this horizontal data and ranging data and then controls connected
The focusing of the projection light of bare engine module；
The video signal that described display control unit is used for that signal processing unit is sent carries out showing that driving is processed, and obtains figure
As signal, and picture signal is sent to bare engine module；
Described bare engine module is used for receiving the picture signal that display control unit sends, and sends after the light path passing it through itself
Corresponding projection light, its focusing is controlled by focus adjustment unit；
Described horizon sensor is used for measuring present level state, obtains horizontal data and is sent to signal processing unit；
Described range unit is used for the distance between projection light light-emitting window and display floater of multimetering bare engine module, is surveyed
Give signal processing unit away from Data Concurrent；
Described actuating device is used for the control campaign according to signal processing unit, thus driving connected bare engine module
Horizontal and vertical state change；
Described focus adjustment unit is used for adjusting the projection of connected bare engine module according to the control of signal processing unit
The focusing of light.
2. projection display apparatus as claimed in claim 1 it is characterised in that described bare engine module include light source driving units,
Light source and ray machine unit, described light source driving units are connected with light source, and light source is connected with ray machine unit, and ray machine unit is controlled with display
Unit processed connects,
The signal that described light source is used for according to light source driving units provides the light source of projection light for ray machine unit；
Described light source driving units are used for providing light source drive signal according to display sequential to light source；
Described ray machine unit is used for receiving the picture signal that display control unit sends, and sends after the light path passing it through itself
Corresponding projection light, its focusing is controlled by focus adjustment unit.
3. projection display apparatus as claimed in claim 2 are it is characterised in that described ray machine unit includes amasthenic lens, ray machine
The projection light that unit sends all is launched through amasthenic lens, and amasthenic lens can adjust the projection light that ray machine unit sends
Focus on.
4. projection display apparatus as claimed in claim 3 it is characterised in that described focus adjustment unit be lens motor, institute
State lens motor and include electric control part and running part, described electric control part is electrically connected with signal processing unit, running part with
Amasthenic lens physical connection,
The control that described electric control part is used for receipt signal processing unit exports its transmission data to running part；
Described running part is driven according to the transmission data receiving thus being driven amasthenic lens adjustment ray machine unit to send
Projection light focusing.
5. projection display apparatus as claimed in claim 1 or 2 or 3 or 4 are it is characterised in that described range unit is by left
Right 3 points of distance measuring methods gather vertical ranging data, and gather horizontal ranging data by 3 points of distance measuring methods of upper, middle and lower.
6. the auto focusing method of projection display apparatus, is applied to the Projection Display as described in claim 1 or 2 or 3 or 4 or 5
Equipment is it is characterised in that comprise the following steps：
Step 1, projection display apparatus start；
Step 2, projection display apparatus gather its horizontal data and the ranging data and display floater between；
Step 3, projection display apparatus control actuator movement to adjust according to the horizontal data being gathered and with ranging data
The horizontal and vertical state change of the bare engine module being connected with actuating device, makes the projection light of bare engine module relative with display floater
Should；
Step 4, projection display apparatus control focus adjustment unit according to this horizontal data and ranging data and then control with it even
The focusing of the projection light of the bare engine module connecing.
7. the auto focusing method of projection display apparatus as claimed in claim 6 is it is characterised in that in step 2, described and aobvious
Show that the ranging data between panel is to gather vertical ranging data by 3 points of left, center, right distance measuring method, and pass through 3 points of upper, middle and lower
The horizontal ranging data of distance measuring method collection obtains.
8. the auto focusing method of projection display apparatus as claimed in claim 7 is it is characterised in that in step 3, described projection
Display device controls actuator movement to be connected with actuating device to adjust according to the horizontal data being gathered and with ranging data
The method of the horizontal and vertical state change of bare engine module be：First according to horizontal data control actuator movement with adjust with
The horizontality change of the bare engine module that actuating device connects turns to level, judges projection light and display further according to vertical ranging data
The perpendicularity of panel, and then actuator movement is controlled to adjust the light being connected with actuating device according to default standard vertical degree
The plumbness change of machine module, judges the levelness between projection light and display floater, Jin Ergen according to horizontal ranging data
Become according to the horizontality that default standard water Pingdu controls actuator movement to adjust the bare engine module being connected with actuating device
Change.
9. the auto focusing method of the projection display apparatus as described in claim 6 or 7 or 8 is it is characterised in that in step 4, institute
State and control focus adjustment unit and then control the projection light of connected bare engine module according to this horizontal data and ranging data
The method of focusing be：Default focus adjustment table is inquired about according to horizontal data and ranging data, obtains corresponding focus adjustment
Data, controls focus adjustment unit according to this focus adjustment data and then controls the poly- of the projection light of connected bare engine module
Burnt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611015801.0A CN106488206A (en) | 2016-11-18 | 2016-11-18 | Projection display apparatus and its auto focusing method |
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| CN201611015801.0A CN106488206A (en) | 2016-11-18 | 2016-11-18 | Projection display apparatus and its auto focusing method |
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Application publication date: 20170308 |