CN105629643B - Electronic equipment and its control method - Google Patents
Electronic equipment and its control method Download PDFInfo
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- CN105629643B CN105629643B CN201410636788.5A CN201410636788A CN105629643B CN 105629643 B CN105629643 B CN 105629643B CN 201410636788 A CN201410636788 A CN 201410636788A CN 105629643 B CN105629643 B CN 105629643B
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Abstract
The present invention provides a kind of electronic equipment and its control method.Electronic equipment according to the present invention, including：Light source is configured to emit light；Digital micro-mirror unit, including the micro mirror array being made of multiple micro mirrors, the digital micro-mirror unit is configured, based on the image information inputted, to reflect the light from the light source by the micro mirror in projected area；Projection lens, configuration will project to external projected display region from the light after digital micro-mirror unit reflection；The shake displacement to detect the electronic equipment is configured in shaking detection unit；Control unit, it, which is configured, to control the light source according to the shake displacement detected by the shaking detection unit, so that the region of the source emissioning light to the digital micro-mirror unit is altered to the second projected area from the first projected area, so as to compensate the movement of the projected display region in external projection plane.
Description
Technical field
The present invention relates to electronic equipment and its control method more particularly to has electronic equipment and its control of projecting function
Method.
Background technology
The function of projection is combined in the mobile equipment such as mobile phone, tablet computer just to be become to become more and more popular, Yong Huke
It is shown on object so that the content in mobile equipment easily is projected to wall etc., to be shared with other people.
But during user is projected using mobile equipment, since the shake of hand can cause Projection Display area
There is bigger shake in domain, and the degree of projected display region shake is with the increase of the distance of the display object with wall etc.
More serious, user experiences excessively poor when appreciating projected picture.
In order to avoid the shake of the above-mentioned projected display region caused by the shake of hand, user usually consolidates mobile equipment
It is fixed.But in the case where securing mobile equipment, since the movement equipment can not be moved, it is impossible to experience projecting function at any time.
Invention content
The present invention completes in view of the above problems, and its purpose is to provide a kind of electronic equipment and its control methods, pass through
The movement of the projected display region in external projection plane is compensated, it is above-mentioned caused by the shake of hand so as to avoid
The movement of projected display region.
According to an aspect of the present invention, a kind of electronic equipment is provided.The electronic equipment includes：Light source, configuration come
Emit light；Digital micro-mirror unit, including the micro mirror array being made of multiple micro mirrors, the digital micro-mirror unit configuration is to be based on
The image information of input reflects the light from the light source by the micro mirror in projected area；Projection lens, configuration will
External projected display region is projected to from the light after digital micro-mirror unit reflection；Shaking detection unit is configured to examine
Survey the shake displacement of the electronic equipment；The shake come according to being detected by the shaking detection unit is configured in control unit
Displacement controls the light source so that by the source emissioning light to the region of the digital micro-mirror unit from the first projected area
The second projected area is altered to, so as to compensate the movement of the projected display region in external projection plane.
According to another aspect of the present invention, the control method of a kind of electronic equipment is provided.The electronic equipment include light source,
Including the digital micro-mirror unit of micro mirror array, projection lens and the shaking detection unit being made of multiple micro mirrors.The controlling party
Method includes：Projected area in the digital micro-mirror unit is emitted light by the light source；Based on the image letter inputted
Breath, reflects the light from the light source by the micro mirror in the projected area of the digital micro-mirror unit；Pass through the projection
Camera lens will project to external projected display region from the light after digital micro-mirror unit reflection；Pass through the shaking detection list
Member detects the shake displacement of the electronic equipment；Described in being controlled according to the shake displacement detected by the shaking detection unit
Light source so that the region of the source emissioning light to the digital micro-mirror unit is altered to the second projection from the first projected area
Region, so as to compensate the movement of the projected display region in external projection plane.
Electronic equipment according to the present invention and its control method, according to the shake displacement detected by shaking detection unit come
Control light source so that source emissioning light to the region of digital micro-mirror unit is altered to the second projection area from the first projected area
Domain, so as to compensate the movement of the projected display region in external projection plane.Thereby, it is possible to avoid the shake because of hand
Caused by projected display region movement.
Description of the drawings
Fig. 1 is the functional block diagram for the electronic equipment for representing embodiments of the present invention.
Fig. 2 is the schematic diagram of the projection theory for the electronic equipment for representing embodiments of the present invention.
Fig. 3 be represent embodiments of the present invention electronic equipment generate shake in the case of projected display region move
The schematic diagram of example.
Fig. 4 is the processing for being used to compensate the movement of projected display region in the electronic equipment for represent embodiments of the present invention
Example schematic diagram.
Fig. 5 is the flow chart of the control method for the electronic equipment for representing embodiments of the present invention.
Specific embodiment
In the following, it is explained with reference to embodiments of the present invention.Description referring to the drawings is provided, with help to by
The understanding of the example embodiment of the present invention that appended claims and their equivalents are limited.It includes helping to understand various specific
Details, but they can only be counted as illustratively.It therefore, it would be recognized by those skilled in the art that can be to reality described herein
The mode of applying makes various changes and modifications, without departing from scope and spirit of the present invention.Moreover, in order to make specification clearer
Succinctly, it will omit pair it is well known that the detailed description of function and construction.
Illustrate the electronic equipment 1 of embodiments of the present invention with reference to Fig. 1.The electronic equipment 1 of embodiments of the present invention
It is the mobile equipment of mobile phone, tablet computer etc., and has projecting function.
As shown in Figure 1, electronic equipment 1 includes light source 11, digital micro-mirror unit 12, projection lens 13, shaking detection unit
14 and control unit 15.
Light source 11 is configured to emit light into digital micro-mirror unit 12.Digital micro-mirror unit 12 includes what is be made of multiple micro mirrors
Micro mirror array.Digital micro-mirror unit 12 is configured, based on the image information inputted, to reflect by the micro mirror in projected area
Light from light source 11.Light after being reflected from digital micro-mirror unit 12 is projected to external projection and shown by the configuration of projection lens 13
Show region.
Specifically, each micro mirror in micro mirror array can correspond to a pixel, and each micro mirror for example can with+
10 degree or -10 degree inclinations.Specific pixel in the image information inputted is represented in the case of " bright ", with the specific pixel pair
The micro mirror answered is arranged to "ON" (such as being tilted with+10 degree), so as to by the light after micro mirror corresponding with specific pixel reflection
Can external projected display region be projected to by aftermentioned projection lens 13.On the contrary, in the image information inputted
Specific pixel represent " going out " in the case of, micro mirror corresponding with the specific pixel be arranged to "Off" (such as with -10 degree incline
Tiltedly), so as to which the light after being reflected by micro mirror corresponding with the specific pixel can not be by aftermentioned projection lens 13, so as to throw
Shadow is to external projected display region.
Illustrate the projection theory in the electronic equipment 1 of embodiments of the present invention with reference to Fig. 2.It is instantiated in Fig. 2 by 3
The micro mirror array that micro mirror is formed, but the not limited to of micro mirror schedules this.For example, in the figure that can effectively project 640*480 pixels
In the digital micro-mirror unit 12 of picture, including the micro mirror array being at least made of 640*480 micro mirror.It is left in the schematic diagram of Fig. 2
The micro mirror on side and right side is arranged to "ON", and intermediate micro mirror is arranged to "Off", therefore is reflected by the micro mirror on the right side in left side
Light by projection lens 13 after, be projected to external projected display region, the light reflected on the contrary by intermediate micro mirror is not
By projection lens, external projected display region can not be projected to.In projected display region shown in Fig. 2, with left side
Micro mirror and the corresponding region of right side micro mirror are projected into " bright ", and region corresponding with intermediate micro mirror is projected into " going out ".As above,
According to " bright " and " going out " of each pixel of the image inputted, to control the angle of inclination of the correspondence micro mirror in micro mirror array,
So as to show inputted image information in external projected display region.
And then it pair can also be set according to the gray scale of the specific pixel in the image information inputted with the specific pixel
The time span for being set to "ON" is controlled.The gray scale of image information can be showed in external projected display region as a result,
Information.
In addition, as described later, in the electronic equipment 1 of embodiments of the present invention, by changing reflection from light source 11
Light micro mirror region, compensate the movement of the projected display region in external projection plane.Therefore, it is micro- in data
In mirror unit 12, the light from light source 11 is reflected not by the micro mirror of all areas, but only passes through the micro- of projected area
Mirror reflects the light from light source 11.That is, the projected area in digital micro-mirror unit 12 is the subregion in micro mirror array, it is
For the region of the light of reflection source 11.Therefore, in the electronic equipment of embodiments of the present invention 1, light source 11 is by light emitting
To the projected area of the micro mirror array of digital micro-mirror unit 12, the micro mirror positioned at projected area reflects the light from light source 11, and
External projection plane is projected to by projection lens.
Preferably, colour wheel 16 can also be included in the electronic device 1.The configuration of colour wheel 16 to carry out the light from light source 11
After filtering, it is emitted to the projected area of digital micro-mirror unit 12.Therefore, the light after being filtered by colour wheel 15 be respectively R,
G, the light of B colors, by alternately by the light emitting of R, G, B color to digital micro-mirror unit 12, in digital micro-mirror unit 12
The micro mirror in projected area is controlled according to the information of R, G of coloured image, B component, so as to external Projection Display area
Domain can show coloured image.
Alternatively, it is also possible to set convergent lens between light source 11 and colour wheel 16, in colour wheel 16 and digital micro-mirror unit 12
Between setting correct lens, so as to by the light from light source 11 be effectively emitted to digital micro-mirror unit 12 projected area it is micro-
Mirror.
In Fig. 1, the shake displacement to detect electronic equipment 1 is configured in shaking detection unit 14.
For example, shaking detection unit 14 is made of acceleration transducer, the acceleration detected according to acceleration transducer,
Can calculate because user it is handshaking caused by electronic equipment 1 shake displacement.In addition, as needed, shaking detection unit
14 can also be made of Magnetic Sensor, gyroscope etc., so as to further improve the essence of the shake displacement of the electronic equipment detected
Exactness.
The configuration of control unit 15 to control light source 11 according to the shake displacement detected by shaking detection unit 14 so that
The region that light source 11 is emitted light into digital micro-mirror unit 12 is altered to the second projected area from the first projected area, so as to compensate
The movement of projected display region in external projection plane.
In the following, illustrate the projection by changing projected area to compensate in external projection plane with reference to Fig. 3 and Fig. 4
The principle of the movement of display area.
Fig. 3 is to represent that the electronic equipment 1 of embodiments of the present invention generates projected display region movement in the case of shake
Example schematic diagram.
In the diagram shown in figure 3, it is assumed that plane residing for micro mirror array and projection lens in digital micro-mirror unit 12
Plane residing for first 13 is parallel.Wherein, the planar representation residing for projection lens 13 is vertical with the optical axis of projection lens 13 and passes through
The plane of the central point of projection lens 13.
Before electronic equipment 1 generates shake, the first projected area represented by shade is located at position X.In the first projection
The micro mirror in region reflects the light from light source 11, and the projected display region A in projection plane is projected to via projection lens 13.
In order to make it easy to understand, the upper side frame that the first projected area is expressed as being close to micro mirror array.In addition, as described above, projected area
It is not the whole region of micro mirror array.
In the case where electronic equipment 1 generates shake, the position of projection lens 13 and the shift in position of micro mirror array.That is,
In the example in figure 3, after shake downwards is generated, the first projected area represented by shade is located at position Y.But it is producing
After raw shake, in the example in figure 3, due to not having to change the first projected area, the first projected area is still close to micro-
The upper side frame (that is, relative position of first projected area in micro mirror array does not change) of lens array.Wherein, for the ease of figure
Show, the plane residing for micro mirror array that the micro mirror array before shake and the micro mirror array after shake are shown in Fig. 3 respectively
Both sides, but illustrated so that electronic equipment 1 is shaken only in downward direction as an example in the following description.
After shake is generated, if not changing the first projected area, position and micro mirror array due to projection lens 13
Shift in position, the micro mirror in the first projected area reflects the light from light source 11 and to project to projection via projection lens 13 flat
In the case of face, projected image is shown to the projected display region B in projection plane.In this way, the shake meeting due to such as hand
Projected display region is caused to have big movement (A is altered to projected display region B from projected display region), user is caused to appreciate
It is experienced during projected picture excessively poor.
Fig. 4 is the place for being used to compensate the movement of projected display region in the electronic equipment 1 for represent embodiments of the present invention
The schematic diagram of the example of reason.
In the electronic equipment 1 of embodiments of the present invention, control unit 15 is detected according to by shaking detection unit 14
Shake displacement control light source 11, so as to which from the first projected area the projected area in micro mirror array is altered to the second projection
Region.
For example, in the example shown in Figure 4, projected area is changed to from positioned at the first projected area of position Y positioned at position
Put the second projected area of Z.Wherein, the position of micro mirror array and projection lens shown in Fig. 4 is equivalent to example shown in Fig. 3
The middle position of projection lens 13 generated after shaking and the position of micro mirror array.In order to make it easy to understand, by the second projected area table
It is shown as the lower frame for being close to micro mirror array.It in Fig. 4, for the ease of illustration, will be micro- after micro mirror array before changing and change
Lens array is shown in the both sides of the plane residing for the micro mirror array in Fig. 3 respectively, but micro mirror array can't generate in Fig. 4
Displacement.
Projected area in micro mirror array is changed to second positioned at position Z from positioned at the first projected area of position Y
After projected area, as shown in figure 4, the micro mirror in the second projected area reflects the light from light source 11 and via projection lens 13
In the case of projecting to projection plane, projected image is shown to the projected display region A in projection plane.That is, pass through change
Projected area in micro mirror array, so as to which projected display region is identical with before generating shake.
Light source is controlled according to the shake displacement detected by shaking detection unit 14 as a result, so that emit light source 11
Light is altered to the second projected area to the region of digital micro-mirror unit 12 from the first projected area, so as to compensate in external projection
The movement of projected display region in plane can avoid the movement of the projected display region caused by the shake of hand.
Illustrated in Fig. 3 and schematic diagram shown in Fig. 4 plane residing for micro mirror array in digital micro-mirror unit 12 with
The parallel situation of plane residing for projection lens 13.As shown in Figure 3 and Figure 4, residing for the micro mirror array in digital micro-mirror unit 12
Plane it is parallel with the plane residing for projection lens 13 in the case of, the second projected area after change is relative to the first projection area
The direction of displacement in domain is identical with the direction of shake displacement detected by shaking detection unit 14.For example, in figs. 3 and 4, electricity
Sub- equipment 1 is shaken downwards, therefore the second projected area after change is located at downside relative to the first projected area.Equally, in electricity
Sub- equipment 1 upwards (such as the paper in Fig. 3 and Fig. 4 inwards, paper it is outside) shake in the case of, the second projection area after change
Domain relative to the first projected area be located at upside (such as the paper in Fig. 3 and Fig. 4 inwards, paper it is outside).
In addition, the electronic equipment 1 of embodiments of the present invention can also apply to the micro mirror battle array in digital micro-mirror unit 12
The residing plane of the row situation not parallel with the plane residing for projection lens 13.In such a case, it is as long as micro- according to number
The relative position relation of the plane and the plane residing for projection lens 13 residing for micro mirror array in mirror unit 12, after setting change
The second projected area position so that the micro mirror in the second projected area reflects the light from light source 11 and via projection lens
In the case that 13 project to projection plane, projected image is shown in the projection plane before electronic equipment 1 generates shake
Projected display region A.
As described above, light source 11 emits light into the projected area of the micro mirror array of digital micro-mirror unit 12, so as to be located at
The micro mirror of projected area can reflect the light from light source 11.Therefore, the projected area in digital micro-mirror unit 12 is from first
In the case that projected area is altered to the second projected area, control unit 15 is according to the shake detected by shaking detection unit 14
Displacement controls light source 11 so that the region that light source 11 is emitted light into digital micro-mirror unit 12 is altered to from the first projected area
Second projected area.For example, control unit 15 can be controlled according to the shake displacement detected by shaking detection unit 14
The position of light source 11 processed or launch angle so that light source 11 is emitted light into the region of digital micro-mirror unit 12 from the first projection area
Domain is altered to second projected area.Wherein, in the case where electronic equipment 1 includes colour wheel 16, due to emitting from light source 11
Light need through colour wheel 16, therefore preferably control unit 15 is according to the shake displacement detected by shaking detection unit 14,
The position of mobile light source 11 so that the region that light source 11 is emitted light into digital micro-mirror unit 12 is altered to from the first projected area
Second projected area.
Wherein, control unit 15 controls the position of light source 11 according to the shake displacement detected by shaking detection unit 14
Or the processing of angle, it is suitably carried out based on light source 11 and the relative position relation of digital micro-mirror unit 12.In addition, it is set in electronics
In the case that standby 1 includes colour wheel 16, it is also necessary to consider the opposite position of colour wheel 16 and light source 11, colour wheel 16 and digital micro-mirror unit 12
The relationship of putting suitably controls the position of light source 11.
And then preferably, light source 11 is controlled in control unit 15 so that light source 11 is emitted light into digital micro-mirror unit 12
Region be altered to the second projected area from the first projected area in the case of, control unit 15 based on inputted image letter
Breath, reflects the light from the light source by the micro mirror in the second projected area.In other words, change projected area it
Before, control unit 15 is based on the image information inputted, to the micro mirror of the first projected area of micro mirror array for example into line tilt
The control of angle, after projected area is changed, control unit 15 is based on the image information inputted, to the second of micro mirror array
The micro mirror of projected area for example carries out the control at angle of inclination.Specifically, it is corresponding with specific pixel with the change of projected area
Micro mirror also suitably change.So as to be altered in projected area after the second projected area, in the Projection Display of projection plane
Inputted image information can be accurately showed in region.
Preferably, whether the shake displacement that control unit 15 judges to be detected by shaking detection unit 14 meets predetermined item
Part, in the case where meeting predetermined condition, light source 11 so that is emitted light into the region of digital micro-mirror unit 12 by control light source 11
The second projected area is altered to from the first projected area.On the contrary, it is discontented in the shake displacement detected by shaking detection unit 14
In the case of sufficient predetermined condition, the processing of the change without the projected area in changed number micro mirror unit 12.
For example, control unit 15 in the case where the shake displacement detected by shaking detection unit 14 is less than threshold value, is controlled
Light source 11 processed is so that the region that light source 11 is emitted light into digital micro-mirror unit 12 is altered to the second projection from the first projected area
Region, the otherwise processing without the change without the projected area in changed number micro mirror unit 12.Thereby, it is possible to prevent
The position of the second projected area that shake displacement according to detecting calculates is beyond the micro mirror array of digital micro-mirror unit 12
Regional extent the occurrence of.Also, it can also prevent at the projected display region during user view changes projection plane,
Also carry out according to shake displacement compensation processing the occurrence of.
In addition, above-mentioned rated condition be not limited to be less than threshold value or in the prescribed direction have shake displacement,
During defined there is no shake in the case of the shake displacement that generates etc., as long as can be by item as defined in satisfaction
The movement for the projected display region that compensation is generated by shake under part, so as to improve the operating experience of user.For example, providing
In a period of there is no shake in the case of generate shake displacement when, it can be assumed that for user's hand-hold electronic equipments 1 when produce
Shake rather than the position for adjusting the projected display region in projection plane.
To sum up, electronic equipment 1 according to the embodiment of the present invention, according to the shake detected by shaking detection unit 14
Displacement controls light source 11 so that the region that light source 11 is emitted light into digital micro-mirror unit is altered to from the first projected area
Two projected areas, so as to compensate the movement of the projected display region in external projection plane.Thereby, it is possible to avoid because of hand
The movement of projected display region caused by shake.
In the following, illustrate the control method of the electronic equipment of embodiments of the present invention with reference to Fig. 5.Fig. 5 is to represent this hair
The flow chart of the control method of the electronic equipment of bright embodiment.Control method shown in fig. 5 can be applied to shown in FIG. 1
Electronic equipment 1.
As described above, electronic equipment 1 is the mobile equipment of mobile phone, tablet computer etc., and has projecting function.Such as
Shown in Fig. 1, it is single that electronic equipment 1 includes light source 11, digital micro-mirror unit 12, projection lens 13, shaking detection unit 14 and control
Member 15.
In step s 11, the projected area in digital micro-mirror unit 12 is emitted light by light source 11.In step S12
In, based on the image information inputted, reflected by the micro mirror in the projected area of digital micro-mirror unit 12 from the light
The light in source.In step s 13, the light after being reflected from digital micro-mirror unit 12 is projected to by projection lens 13 by external projection
Display area.
Specifically, in data micro mirror unit 12, the light from light source 11 is reflected not by the micro mirror of all areas,
But the light from light source 11 is only reflected by the micro mirror of projected area.That is, the projected area in digital micro-mirror unit 12 is
Subregion in micro mirror array is for the region of the light of reflection source 11.Therefore, in the control of embodiments of the present invention
In method, light source 11 emits light into the projected area of digital micro-mirror unit 12, and the micro mirror reflection positioned at projected area is from light
The light in source 11, and pass through projection lens 13 and project to external projection plane.
Moreover it is preferred that electronic equipment 1 can also include colour wheel 16.If it does, in step s 11, it will by light source 11
Light emitting is emitted to digital micro-mirror unit to colour wheel 16, and after being filtered by colour wheel 16 to the light from light source 11
12 projected area.
Light after being filtered as a result, by colour wheel 15 is the light of R, G, B color respectively, by alternately by R, G, B face
The light emitting of color is to digital micro-mirror unit 12, according to the information pair of R, G of coloured image, B component in digital micro-mirror unit 12
Micro mirror in projected area is controlled, so as to which external projected display region can show coloured image.
In step S14, the shake displacement of electronic equipment 1 is detected by shaking detection unit 14.For example, shaking detection list
Member 14 is made of acceleration transducer, and the acceleration detected according to acceleration transducer can be calculated because such as user's
The shake displacement of electronic equipment 1 caused by handshaking.
In step S15, control unit 15 controls light source according to the shake displacement detected by shaking detection unit 14
11 so that the region that light source 11 is emitted light into digital micro-mirror unit 12 is altered to the second projected area from the first projected area,
So as to compensate the movement of the projected display region in external projection plane.
Specifically, as shown in Figure 3 and Figure 4, the plane residing for the micro mirror array in digital micro-mirror unit 12 and throwing
In the case that plane residing for shadow camera lens 13 is parallel, the second projected area after change relative to the first projected area displacement side
To with by shaking detection unit 14 detect shake displacement direction it is identical.For example, in figs. 3 and 4, electronic equipment 1 to
Lower shake, therefore the second projected area after change is located at downside relative to the first projected area.Equally, electronic equipment 1 to
It is upper (or the paper in Fig. 3 and Fig. 4 inwards, paper it is outside) in the case of shake, the second projected area after change relative to
First projected area be located at upside (or the paper in Fig. 3 and Fig. 4 inwards, paper it is outside).In addition, embodiments of the present invention
Electronic equipment 1 can also apply to residing for plane residing for the micro mirror array in digital micro-mirror unit 12 and projection lens 13
The not parallel situation of plane.In such a case, as long as plane residing for micro mirror array in digital micro-mirror unit 12
With the relative position relation of the plane residing for projection lens 13, the position of the second projected area after setting change so that producing
Projected image after raw shake is shown to the projected display region in the projection plane before electronic equipment 1 generates shake
A.
Specifically, in step S15, control unit 15 is controlled according to the shake displacement detected by shaking detection unit 14
The position of light source 11 processed or launch angle so that light source 11 is emitted light into the region of digital micro-mirror unit 12 from the first projection area
Domain is altered to second projected area.
In the case where electronic equipment 1 includes colour wheel 16, since the light emitted from light source 11 is needed through colour wheel 16.Cause
This, preferably, in step S15, control unit 15 is according to the shake displacement detected by shaking detection unit 14, mobile light source
11 position so that the region that light source 11 is emitted light into digital micro-mirror unit 12 is altered to the second projection from the first projected area
Region.
Wherein, control unit 15 controls the position of light source 11 according to the shake displacement detected by shaking detection unit 14
Or the processing of angle, it is suitably carried out based on light source 11 and the relative position relation of digital micro-mirror unit 12.In addition, it is set in electronics
In the case that standby 1 includes colour wheel 16, it is also necessary to consider the opposite position of colour wheel 16 and light source 11, colour wheel 16 and digital micro-mirror unit 12
The relationship of putting suitably controls the position of light source 11.
In addition, the control method of electronic equipment shown in fig. 5 can further include following steps：In control light source
11 so that the region that light source 11 is emitted light into digital micro-mirror unit 12 is altered to the second projected area from the first projected area
In the case of, based on the image information inputted, the light from the light source is reflected by the micro mirror in the second projected area.
Specifically, before projected area is changed, control unit 15 is based on the image information inputted, to micro mirror array
The micro mirror of first projected area for example carries out the control at angle of inclination, and after projected area is changed, control unit 15 is based on institute
The image information of input for example carries out the micro mirror of the second projected area of micro mirror array the control at angle of inclination.That is, with throwing
The change in region is penetrated, micro mirror corresponding with specific pixel also suitably changes.So as to be altered to the second projection area in projected area
After domain, inputted image information can be accurately showed in the projected display region of projection plane.
Preferably, the control method of electronic equipment shown in fig. 5 can further include following steps：Control unit 15
Whether the shake displacement for judging to be detected by shaking detection unit 14 meets predetermined condition, in the case where meeting predetermined condition,
Control light source 11 is so that the region that light source 11 is emitted light into digital micro-mirror unit 12 is altered to the second throwing from the first projected area
Penetrate region.On the contrary, in the case where the shake displacement detected by shaking detection unit 14 is unsatisfactory for predetermined condition, without becoming
The processing of the change of projected area in more digital micro-mirror unit 12.
For example, control unit 15 in the case where the shake displacement detected by shaking detection unit 14 is less than threshold value, is controlled
Light source 11 processed is so that the region that light source 11 is emitted light into digital micro-mirror unit 12 is altered to the second projection from the first projected area
Region, the otherwise processing without the change without the projected area in changed number micro mirror unit 12.Thereby, it is possible to prevent
The position of the second projected area that shake displacement according to detecting calculates is beyond the micro mirror array of digital micro-mirror unit 12
Regional extent the occurrence of.Also, it can also prevent at the projected display region during user view changes projection plane,
Also carry out according to shake displacement compensation processing the occurrence of.
In addition, above-mentioned rated condition be not limited to be less than threshold value or in the prescribed direction have shake displacement,
During defined there is no shake in the case of the shake displacement that generates etc., as long as can be by item as defined in satisfaction
The movement for the projected display region that compensation is generated by shake under part, so as to improve the operating experience of user.For example, providing
In a period of there is no shake in the case of generate shake displacement when, it can be assumed that for user's hand-hold electronic equipments 1 when produce
Shake rather than the position for adjusting the projected display region in projection plane.
To sum up, the control mode of electronic equipment according to the embodiment of the present invention is examined according to by shaking detection unit 14
The shake displacement that measures controls light source 11 so that light source 11 is emitted light into the region of digital micro-mirror unit from the first projection area
Domain is altered to the second projected area, so as to compensate the movement of the projected display region in external projection plane.Thereby, it is possible to
Avoid the movement of the projected display region caused by the shake of hand.
Those of ordinary skill in the art may realize that be incorporated in each unit and step that embodiments of the present invention describe
Suddenly, it can be realized with the combination of electronic hardware, computer software or the two.And software module can be placed in arbitrary form
Computer storage media in.In order to clearly demonstrate the interchangeability of hardware and software, in the above description according to work(
Each exemplary composition and step can be generally described.These functions are performed actually with hardware or software mode, are depended on
In the specific application and design constraint of technical solution.Those skilled in the art can use not each specific application
Described function is realized with method, but this realization is it is not considered that beyond the scope of this invention.
Each embodiment of the present invention has been described in detail above.However, it should be appreciated by those skilled in the art that not
In the case of being detached from the principle and spirit of the invention, these embodiments can be carry out various modifications, combination or sub-portfolio, and
Such modification should be fallen within the scope of the present invention.
Claims (10)
1. a kind of electronic equipment, including：
Light source is configured to emit light；
Digital micro-mirror unit, including the micro mirror array being made of multiple micro mirrors, the digital micro-mirror unit configuration is defeated to be based on
The image information entered reflects the light from the light source by the micro mirror in projected area；
Projection lens, configuration will project to external projected display region from the light after digital micro-mirror unit reflection；
The shake displacement to detect the electronic equipment is configured in shaking detection unit；
Control unit, configuration to control the light source according to the shake displacement detected by the shaking detection unit, make
It obtains and the region of the source emissioning light to the digital micro-mirror unit is altered to the second projected area from the first projected area, from
And compensate the movement of the projected display region in external projection plane.
2. electronic equipment as described in claim 1, wherein,
Described control unit judges whether meet predetermined condition by the shake displacement that the shaking detection unit detects, is meeting
In the case of predetermined condition, the light source is controlled to cause the source emissioning light to the region of the digital micro-mirror unit from
One projected area is altered to the second projected area.
3. electronic equipment as claimed in claim 2, wherein,
If the plane residing for the micro mirror array in the digital micro-mirror unit is parallel with the plane residing for the projection lens,
Second projected area after then changing is relative to the direction of displacement of first projected area and the side of the shake displacement
To identical.
4. electronic equipment as claimed in claim 2, further includes：
Colour wheel, configuration after being filtered to the light from the light source, are emitted to the projection of the digital micro-mirror unit
Region,
Described control unit makes according to the shake displacement detected by the shaking detection unit, the position of the mobile light source
It obtains and the source emissioning light to the region of the digital micro-mirror unit is altered to second throwing from first projected area
Penetrate region.
5. such as any one of them electronic equipment of Claims 1-4, wherein,
Control the light source in described control unit so that by the source emissioning light to the region of the digital micro-mirror unit from
In the case that first projected area is altered to the second projected area, described control unit is passed through based on the image information inputted
Micro mirror in second projected area reflects the light from the light source.
6. the control method of a kind of electronic equipment, the electronic equipment includes light source, the micro mirror battle array including being made of multiple micro mirrors
Digital micro-mirror unit, projection lens and the shaking detection unit of row, the control method include：
Projected area in the digital micro-mirror unit is emitted light by the light source；
Based on the image information inputted, reflected by the micro mirror in the projected area of the digital micro-mirror unit from described
The light of light source；
External projected display region will be projected to from the light after digital micro-mirror unit reflection by the projection lens；
The shake displacement of the electronic equipment is detected by the shaking detection unit；
The light source is controlled according to the shake displacement detected by the shaking detection unit so that by the source emissioning light
The second projected area is altered to from the first projected area to the region of the digital micro-mirror unit, so as to compensate in external projection
The movement of the projected display region in plane.
7. control method as claimed in claim 6, further includes：
Judge whether predetermined condition is met by the shake displacement that the shaking detection unit detects；
In the case where meeting predetermined condition, the light source is controlled to cause the source emissioning light to the digital micro-mirror unit
Region be altered to the second projected area from the first projected area.
8. control method as claimed in claim 7, wherein,
If the plane residing for the micro mirror array in the digital micro-mirror unit is parallel with the plane residing for the projection lens,
Second projected area after then changing is relative to the direction of displacement of first projected area and the side of the shake displacement
To identical.
9. control method as claimed in claim 7, wherein,
The electronic equipment further includes colour wheel,
The step of projected area emitted light into the digital micro-mirror unit by the light source, includes：
The colour wheel is emitted light by the light source；
After being filtered by the colour wheel to the light from the light source, it is emitted to the projection area of the digital micro-mirror unit
Domain,
The light source is being controlled according to the shake displacement detected by the shaking detection unit so that emit the light source
Light to the region of the digital micro-mirror unit be altered to the second projected area from the first projected area the step of in,
According to the shake displacement detected by the shaking detection unit, the position of the mobile light source so that by the light source
The region for emitting light into the digital micro-mirror unit is altered to second projected area from first projected area.
10. such as any one of them control method of claim 6 to 9, further include
Controlling the light source so that by the source emissioning light to the region of the digital micro-mirror unit from the first projected area
In the case of being altered to the second projected area, based on the image information inputted, by the micro mirror in the second projected area come anti-
Penetrate the light from the light source.
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| CN109407913B (en) * | 2017-08-16 | 2023-09-19 | 中兴通讯股份有限公司 | Projector and control method thereof |
| CN110324594A (en) | 2019-06-19 | 2019-10-11 | 广景视睿科技（深圳）有限公司 | A kind of projected picture anti-fluttering method, device and projector |
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