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CN102034456A - Display device and control method thereof, and projection device and control method thereof - Google Patents

Display device and control method thereof, and projection device and control method thereof Download PDF

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Publication number
CN102034456A
CN102034456A CN2009101792079A CN200910179207A CN102034456A CN 102034456 A CN102034456 A CN 102034456A CN 2009101792079 A CN2009101792079 A CN 2009101792079A CN 200910179207 A CN200910179207 A CN 200910179207A CN 102034456 A CN102034456 A CN 102034456A
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display device
distance
sensor
projection
brightness
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CN2009101792079A
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CN102034456B (en
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李宗原
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Novatek Microelectronics Corp
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Novatek Microelectronics Corp
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Abstract

The invention provides a display device and a control method thereof, and a projection device and a control method thereof. The display device comprises at least one sensor, a processing unit and a control unit. The sensor is used for detecting a human body. The processing unit is connected with the sensor and used for capturing and processing the signal from the sensor to obtain sensing data. The control unit is connected with the processing unit and used for analyzing and judging whether the human body enters or leaves the sensing range of the sensor according to the sensing data. When the control unit judges that the distance between the human body and the sensing range reaches or exceeds a first preset time, the display device is closed or is caused to enter a power-saving/sleep mode; in addition, when the control unit judges that the human body enters the sensing range and reaches or exceeds a second preset time, the display device is started.

Description

Display device and control method thereof and projection arrangement and control method thereof
Technical field
The invention relates to a kind of detecting control technology, and, relate in particular to a kind of display device and be used for controlling method for controlling display device and projection arrangement and be used for controlling the control method of projection arrangement particularly relevant for a kind of electronic installation and control method thereof with sensor.
Background technology
At present the electricity-saving mechanism of display device roughly has two, one for when the user in use, at a little less than the environmental light intensity or the presentation content characteristic do analysis, adjust with brightness, thereby reach purpose of power saving the demonstration module of whole display device; And another is for as user during in non-use, timer by display device inside is to count, and after experience a period of time, find without any operation or when using, then close display device automatically or allow display device enter sleep/battery saving mode, thereby reach purpose of power saving.
In addition, some display device can go the detecting image signal input sources whether signal input to be arranged or go the detecting image content to have or not to be updated.Finding the signal of video signal input source when display device in certain period does not have the input of any signal, signal that input is invalid, and when perhaps presentation content did not have any renewal, then sleep/battery saving mode can be closed or enter to display device automatically, thereby reach purpose of power saving.
Yet above-mentioned mentioned electricity-saving mechanism is no doubt effective, but often can run into following some problem in the use, for example:
1, some user can remove to carry out information reading by display device (may arrange in pairs or groups computer or other electronic-circuit devices).When the user is reading and during thinking, may not necessarily carry out any operation to computer or other electronic-circuit devices that is connected with display device, so picture often may be fixed on that picture.Therefore, because a period of time does not operate or the frame update content, so can allow the user see half, power saving/sleep pattern is just closed or enter to display device voluntarily.
2, some user can view and admire animation or film by display device (may arrange in pairs or groups computer or other electronic-circuit devices).Usually having one long period between viewing period is can not carry out any operation to computer or other electronic-circuit devices that is connected with display device.Thus, also regular meeting causes display device directly just to enter power saving/sleep pattern.
Based on above-mentioned, most of manufacturers or user can go to set this section detecting time (being generally several minutes even a few hours) to overcome the problems referred to above.Yet, too short as if setting, when the user may watch display device through being everlasting, will run into display device and close or enter power saving/sleep pattern automatically because of this electricity-saving mechanism, but if setting is oversize, little for the benefit of power saving with regard to helping.
Summary of the invention
In view of this, the invention provides a kind of display device and be used for controlling method for controlling display device and projection arrangement and be used for controlling the control method of projection arrangement.
The invention provides a kind of display device, it comprises at least one sensor, processing unit, and control module.Sensor is in order to detect a human body.Processing unit connects sensor, in order to capture and to handle the signal from sensor, uses the acquisition sense data.Control module couples processing unit, in order to analyze according to described sense data and to judge that human body is to enter or away from the sensing range of sensor.When control module judges that human body has reached away from described sensing range or surpass the first Preset Time length, then close display device or cause display device entering electricity-saving/sleep pattern; And when control module is judged that human body enters that described sensing range has reached or surpassed the second Preset Time length, then open display device.Wherein, described detection-sensitive distance can be ordered or factory settings certainly by the user, or even is determined by the set software and hardware architecture of product itself.
The present invention provides a kind of method for controlling display device that is used for controlling in addition, and it comprises: judge whether a human body enters or away from the sensing range of display device.When judging that human body has reached away from described sensing range or surpass first Preset Time, then close display device, cause display device entering electricity-saving/sleep pattern or allow the brightness of display device adjust to lower; And when judging that human body enters that described sensing range has reached or surpassing second Preset Time, then open display device.Wherein, described detection-sensitive distance can be ordered or factory settings certainly by the user, or even is determined by the set software and hardware architecture of product itself.
The present invention also provides a kind of projection arrangement, and it comprises projection light source, at least one sensor, processing unit, and control module.Sensor is used to projection arrangement and is under the open state, detects a projection surface.Processing unit connects sensor, in order to capture and to handle the signal from sensor, to obtain sense data.Control module connection processing unit and projection light source are in order to analyze according to described sense data and to judge distance between projection arrangement and the projection surface.When control module is judged distance between projection arrangement and the projection surface and is fallen into the predeterminable range scope and reached first Preset Time, then according to the brightness between projection arrangement and the projection surface apart from length control projection light source; And when control module is judged that distance between projection arrangement and the projection surface surpasses or reached second Preset Time less than described predeterminable range scope, then cause projection arrangement to close, enter power saving/sleep pattern, enter standby mode, close this projection light source and maybe this projection light source is set in a certain luminance.Wherein, described detection-sensitive distance can be ordered or factory settings certainly by the user, or even is determined by the set software and hardware framework of product itself.
The present invention provides a kind of control method that is used for controlling projection arrangement again, and wherein projection arrangement comprises a projection light source, and this control comprises: when projection arrangement is under the open state, judge the distance between projection arrangement and the projection surface; When judging distance between projection arrangement and the projection surface and fall into the predeterminable range scope and reached first Preset Time, then according to the brightness between projection arrangement and the projection surface apart from length control projection device light source; And when judging that distance between projection arrangement and the projection surface surpasses or having reached second Preset Time, then cause projection arrangement to close, enter power saving/sleep pattern, enter standby mode, close projection light source or projection light source is set in a certain luminance less than described predeterminable range scope.Wherein, described detection-sensitive distance can be ordered or factory settings certainly by the user, or even is determined by the set software and hardware architecture of product itself.
The present invention also provides a kind of electronic installation, and it comprises device for image, at least one sensor, processing unit, and control module.Device for image is used for showing an image.Sensor is in order to sensing one object.Processing unit connects sensor, in order to capture and to handle the signal from sensor, to obtain sense data.Control module connection processing unit is in order to analyze according to described sense data and to judge relative distance between electronic installation and the object, with the brightness of the shown image of control device for image.
Will be appreciated that above-mentioned general description and following embodiment only are exemplary and illustrative, it can not limit the scope that institute of the present invention desire is advocated.
Description of drawings
Fig. 1 is the front appearance synoptic diagram of one embodiment of the invention display device;
Fig. 2 is the relativeness synoptic diagram between one embodiment of the invention display device and the user;
Fig. 3 is the calcspar of one embodiment of the invention display device inside;
Fig. 4 is used for controlling method for controlling display device for one embodiment of the invention;
Fig. 5 is the front appearance synoptic diagram of one embodiment of the invention projection arrangement;
Fig. 6 is the relativeness synoptic diagram between one embodiment of the invention projection arrangement and the projecting plane;
Fig. 7 is the calcspar of one embodiment of the invention projection arrangement inside;
Fig. 8 is used for controlling the control method of projection arrangement for one embodiment of the invention.
Description of reference numerals
The 100-display device; 201-human body (user); 301,701-sensor;
303,703-processing unit; 305,705-control module; 307-shows module;
The 500-projection arrangement; The 707-projection light source; The F-frame;
The AA-viewing area; The d-distance; The SR-sensing range;
SS-is from the signal of sensor; The SD-sense data; The 501-projection surface;
S401～S409: one embodiment of the invention is used for controlling each step of method for controlling display device process flow diagram;
S801～S809: one embodiment of the invention is used for controlling each step of control method process flow diagram of projection arrangement.
Embodiment
Now will be in detail with reference to the embodiment of the invention, and the example of described embodiment is described in the accompanying drawings.In addition, all possibility parts use element/member of same numeral to represent identical or similar portions in drawings and the embodiments.
Fig. 1 is the front appearance synoptic diagram of one embodiment of the invention display device.Fig. 2 is the relativeness synoptic diagram between one embodiment of the invention display device and the user.Fig. 3 is the calcspar of one embodiment of the invention display device inside.Please merge with reference to Fig. 1～Fig. 3, display device 100 comprises at least one sensor 301, processing unit 303, control module 305 and shows module 307.
Sensor 301 can be installed in the top (but being not restricted to this) of display device 100 front frame F, in order to detect a human body 201 (being the user).In the present embodiment, sensor 301 can be optical sensor, photo switches, photo sensors, ultrasonic sensing method, electromagnetic wave sensor, mechanical wave sensor, temperature-sensitive sticker or image sensor, but neitherly is limited to this.In addition, the sensor 301 visual actual design demand of quantity and position that is installed in display device 100 front frame F decides.
Processing unit 303 connects sensor 301, in order to capture and to handle the signal SS from sensor 301, to obtain sense data SD.Control module 305 is connected in processing unit 303 and shows between the module 307, analyze and judge that human body 201 is for entering or away from the sensing range SR of sensor 301 in order to the sense data SD that foundation processing unit 303 obtained, wherein the sensing range SR size of sensor 301 can be learnt according to the characteristic of sensor 301, and can order or factory settings certainly by the user, or even be determined by the set software and hardware framework of product itself.
In the present embodiment, human body 201 has reached away from the sensing range SR of sensor 301 or (this first Preset Time can be one period set time when surpassing one section first Preset Time when control module 305 is judged according to sense data SD that processing unit 303 obtained, or one section variable time that can allow the user adjust voluntarily), then control module 305 can be closed display device 100 or be caused display device 100 to enter power saving/sleep pattern.
On the other hand, sensing range SR that human body 201 enters sensor 301 has reached or (this second Preset Time can be one period set time equally when surpassing one section second Preset Time when control module 305 is judged according to sense data SD that processing unit 303 obtained, or one section variable time that can allow the user adjust voluntarily), then control module 305 can be opened display device 100, and causes demonstration module 307 show image in the AA of viewing area to be watched to the user.
Hence one can see that, and the sensing range SR of sensor 301 has reached or surpass one section second Preset Time in case the user enters, and control module 305 will be opened display device 100.Thus, if the user by display device 100 (may arrange in pairs or groups computer or other electronic-circuit devices) go to carry out information reading, when viewing and admiring animation or viewing and admiring film, as long as the user continue to remain on enter sensor 301 sensing range SR in and meet or exceed under the condition of one section second Preset Time, control module 305 will cause display device 100 to remain on the normal operation pattern, thereby make display device 100 not close or enter power saving/sleep pattern voluntarily, can improve the problem that prior art is addressed with this.
In addition, in case the user has reached away from the sensing range SR of sensor 301 or surpassed one section first Preset Time, control module 305 will be closed display device 100 or turn down the brightness that shows module 307 and be entered power saving/sleep pattern to cause display device 100.Thus, if the user goes to carry out information reading, views and admires animation or views and admires film by display device 100 (may arrange in pairs or groups computer or other electronic-circuit devices), and it is suddenly busy and reach one section first Preset Time when above away from the sensing range SR of sensor 301, control module 305 will be closed display device 100 or be caused display device 100 to enter power saving/sleep pattern, to reach purpose of power saving.
In another embodiment of the present invention, control module 305 can also analyze according to the sense data SD that processing unit 303 is obtained and judge between human body 201 and the sensor 301 apart from d, and according to this brightness that shows module 307 is adjusted.In the present embodiment, show that module 307 roughly can be made up of display panel, module backlight and a plurality of driver.Also also because of like this, when control module 305 and when judging falling into the sensing range SR of sensor 301 or falling into a specific distance range between human body 201 and the sensor 301 apart from d according to sense data SD that processing unit 303 obtained, then according to mode apart from d and by image processing, the mode that gamma (Gamma) voltage is adjusted, the mode that GTG (gray level) voltage is adjusted, or the mode of module brightness adjustment backlight, dynamically to adjust the brightness that shows module 307, for example increase the brightness that (for example linear or non-linear increase, but be not restricted to this) shows module 307 gradually.
On the other hand, when control module 305 judge according to sense data SD that processing unit 303 obtained between human body 201 and the sensor 301 surpass the sensing range SR of sensor 301 apart from d the time, then same foundation is apart from d and by the mode of image processing, the mode that gamma voltage is adjusted, the mode that gray scale voltage is adjusted, or the mode adjusted of module brightness backlight (but neither be limited to this), dynamically to adjust the brightness that shows module 307, for example reduce the brightness that (for example linear or non-linear reduction, but be not restricted to this) shows module 307 gradually.
Based on the content that the foregoing description disclosed, Fig. 4 is used for controlling method for controlling display device for one embodiment of the invention.Please refer to Fig. 4, present embodiment is used for controlling method for controlling display device and comprises: judge whether human body enters or away from the sensing range (step S401) of display device.When judging human body among the step S401 away from the sensing range of display device, then continue to judge whether human body reaches first Preset Time (step S403) away from the sensing range of display device, this first Preset Time can be one period set time, or one section variable time that can allow the user adjust voluntarily.Surpass when judging the sensing range of human body away from display device among the step S403/when having reached first Preset Time, the brightness of then closing display device or reduction display device is to cause display device entering electricity-saving/sleep pattern (step S405).In addition, when judging the sensing range of human body among the step S403 and do not reach first Preset Time, then return step S401 away from display device.
On the other hand, when judging human body among the step S405 and enter the sensing range of display device, continue then to judge whether the sensing range that human body enters display device reaches second Preset Time (step S407), this second Preset Time can be one period set time equally, or one section variable time that can allow the user adjust voluntarily.Surpass when judging the sensing range that human body enters display device among the step S407/when having reached second Preset Time, then open display device, and the distance between analysis human body and the display device, with when this distance falls into the sensing range of display device or a specific distance range, dynamically adjust the display brightness (step S409) of display device.In addition, when judging sensing range that human body enters sensor among the step S407 and do not reach second Preset Time, then return step S401.In the present embodiment, when the distance between human body and the display device falls into the sensing range of display device or a specific distance range, for example can increase the brightness of display device gradually; In addition, when the distance between human body and the display device surpasses the sensing range of display device or a specific distance range, for example can reduce the brightness of display device gradually, but neitherly be limited to this.
Fig. 5 is the front appearance synoptic diagram of one embodiment of the invention projection arrangement.Fig. 6 is the relativeness synoptic diagram between one embodiment of the invention projection arrangement and the projecting plane.Fig. 7 is the calcspar of one embodiment of the invention projection arrangement inside.Please merge with reference to Fig. 5～Fig. 7, projection arrangement 500 for example can be projector, single rifle projector, lantern slide playing machine or theatre motion picture film player, and comprises at least one sensor 701, processing unit 703, control module 705 and projection light source 707.
Sensor 701 can be installed in the top (but being not restricted to this) of the front frame F of projection arrangement 500, in order to be under the open state at projection arrangement 500, detects a projecting plane 501 (for example cloth curtain, but be not restricted to this).In the present embodiment, sensor 701 can be optical sensor, photo switches, photo sensors, ultrasonic sensing method, electromagnetic wave sensor, mechanical wave sensor, temperature-sensitive sticker or image sensor, but neitherly is limited to this.In addition, the sensor 701 visual actual design demand of quantity and position that is installed in projection arrangement 500 front frame F decides.
Processing unit 703 connects sensor 701, in order to capture and to handle the signal SS from sensor 701, to obtain sense data SD.Control module 705 connection processing unit 703 and projection light sources 707, the sense data SD that is obtained in order to foundation processing unit 703 analyze and judge between projection arrangement 500 and the projection surface 501 apart from d.In the present embodiment, when control module 705 according to sense data SD that processing unit 303 obtained and (this first Preset Time can be one period set time when judging falling into a predeterminable range scope and reached first Preset Time apart from d between projection arrangement 500 and the projection surface 501, or one section variable time that can allow the user adjust voluntarily, and the visual actual state of this predeterminable range scope and determine), then control module 705 can be according to controlling the brightness of projection light source 707 apart from d length between projection arrangement 500 and the projection surface 501.
Therefore, judge when control module 705 and to fall into aforementioned predeterminable range scope and when long more apart from d between projection arrangement 500 and the projection surface 501 apart from d, then control module 705 can increase the brightness of (for example linear or non-linear increase, but be not restricted to this) projection light source 707 gradually.In addition, judge when control module 705 and to fall into aforementioned predeterminable range scope and more in short-term apart from d between projection arrangement 500 and the projection surface 501 apart from d, then control module 705 can reduce the brightness of (for example linear or non-linear reduction, but be not restricted to this) projection light source 707 gradually.
In the present embodiment, the mode of the brightness of control module 705 control projection light sources 707 can be by the mode of image processing, the mode that gamma voltage is adjusted, the mode that gray scale voltage is adjusted, the mode that projection light source brightness is adjusted, or the mode that the eyeglass of projection arrangement focus on to be adjusted controls, but neitherly is limited to this.
On the other hand, when control module 705 is judged surpassing or (this second Preset Time can be one period set time equally when having reached second Preset Time less than aforementioned predeterminable range scope apart from d between projection arrangement 500 and the projection surface 501 according to sense data SD that processing unit 703 obtained, or one section variable time that can allow the user adjust voluntarily), then control module 705 can make projection arrangement 500 close, enter power saving/sleep pattern, enters standby mode, closes projection light source 707 or projection light source 707 is set in a certain luminance.
Hence one can see that, in case falling into aforementioned predeterminable range scope apart from d and reached one first Preset Time between projection arrangement 500 and the projection surface 501, control module 705 will be according to adjusting the brightness of projection light source 707 adaptively apart from d length between projection arrangement 500 and the projection surface 501.Thus, if the user is by projection arrangement 500 (may arrange in pairs or groups computer or other electronic-circuit devices) when going to carry out information reading, view and admire animation or viewing and admiring film, as long as apart from d continuing remain on fall into aforementioned predeterminable range scope between projection arrangement 500 and the projection surface 501 reaches under the condition of one section first Preset Time, control module 705 will cause projection arrangement 500 to remain on the normal operation pattern, thereby makes projection arrangement 500 must not close or enter power saving/sleep/standby mode voluntarily.
In addition, in case surpassing or reach one section second Preset Time between projection arrangement 500 and the projection surface 501 less than aforementioned predeterminable range scope apart from d, control module 705 will make projection arrangement 500 close, enter power saving/sleep pattern, enters standby mode, closes projection light source 707 or projection light source 707 is set in a certain luminance, doubt to avoid projection light source 707 to be burnt can also reach purpose of power saving.
Based on the content that the foregoing description disclosed, Fig. 8 is used for controlling the control method of projection arrangement for one embodiment of the invention.Please refer to Fig. 8, the control method that present embodiment is used for controlling projection arrangement comprises: judge whether the distance between projection arrangement (having a projection light source) and the projection surface falls into predeterminable range scope (step S801).When judging distance between projection arrangement and the projection surface among the step S801 and fall into the predeterminable range scope, continue then to judge that distance between projection arrangement and the projection surface falls into the predeterminable range scope and whether reached first Preset Time (step S803), this first Preset Time can be one period set time, or one section variable time that can allow the user adjust voluntarily, and the visual actual state of this predeterminable range scope and determining.
When judging distance between projection arrangement and the projection surface among the step S803 and fall into the predeterminable range scope and reached first Preset Time, then according to the brightness (S805) between projection arrangement and the projection surface apart from the projection light source of length control projection arrangement.Therefore, fall into predeterminable range scope and this distance when long more, then increase the brightness of projection light source gradually when judging distance between projection arrangement and the projection surface; And fall into predeterminable range scope and this distance more in short-term when judging distance between projection arrangement and the projection surface, then reduce the brightness of projection light source gradually.In addition, when judging distance between projection arrangement and the projection surface among the step S803 and fall into the predeterminable range scope and do not reach first Preset Time, then return step S801.
On the other hand, when judging distance between projection arrangement and the projection surface among the step S801 and not falling into (promptly surpass or less than) predeterminable range scope, then continue to judge between projection arrangement and the projection surface distance above or whether reach second Preset Time (step S807) less than the predeterminable range scope, this second Preset Time can be one period set time equally, or one section variable time that can allow the user adjust voluntarily.When judging among the step S807 that distance between projection arrangement and the projection surface surpasses or having reached second Preset Time, then cause projection arrangement to close, enter power saving/sleep pattern, enter standby mode, close projection light source or projection light source is set in a certain luminance (S809) less than the predeterminable range scope.In addition, when judging among the step S807 that distance between projection arrangement and the projection surface surpasses or not reaching second Preset Time, then return step S801 less than the predeterminable range scope.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (24)

1.一种显示装置，包括：1. A display device, comprising: 至少一感测器，用以产生一感测信号，该感测信号对应该显示装置与一人体的距离；At least one sensor is used to generate a sensing signal corresponding to the distance between the display device and a human body; 一处理单元，连接该感测器，用以处理该感测信号，以获得一感测数据；以及，a processing unit connected to the sensor for processing the sensing signal to obtain sensing data; and, 一控制单元，连接该处理单元，用以依据该感测数据来分析并判断该人体是否进入或远离该感测器的一感测范围，并于判断出该人体远离该感测范围已达或超过一第一预设时间时，则关闭该显示装置或者致使该显示装置进入一省电/睡眠模式。A control unit, connected to the processing unit, for analyzing and judging whether the human body enters or leaves a sensing range of the sensor according to the sensing data, and when it is judged that the human body is far away from the sensing range has reached or When a first preset time is exceeded, the display device is turned off or the display device enters a power saving/sleep mode. 2.根据权利要求1所述的显示装置，其中当该控制单元判断该人体进入该感测范围已达或超过一第二预设时间时，则开启该显示装置。2. The display device according to claim 1, wherein the display device is turned on when the control unit determines that the human body has entered the sensing range for or exceeds a second preset time. 3.根据权利要求1所述的显示装置，还包括：3. The display device according to claim 1, further comprising: 一显示模组，连接该控制单元，其中该控制单元还用以控制该显示模组的亮度。A display module is connected to the control unit, wherein the control unit is also used to control the brightness of the display module. 4.根据权利要求3所述的显示装置，其中该控制单元调低该显示模组的亮度，进而使该显示装置进入该省电/睡眠模式。4. The display device according to claim 3, wherein the control unit lowers the brightness of the display module, thereby making the display device enter the power saving/sleep mode. 5.根据权利要求1所述的显示装置，其中该控制单元还依据该感测数据来分析该人体与该感测器之间的一距离，并据以对该显示模组的亮度进行调整。5. The display device according to claim 1, wherein the control unit further analyzes a distance between the human body and the sensor according to the sensing data, and adjusts the brightness of the display module accordingly. 6.根据权利要求5所述的显示装置，其中当该控制单元判断出该距离落入一特定距离范围或落入该感测范围内时，则依据该距离，动态地调整该显示模组的亮度。6. The display device according to claim 5, wherein when the control unit judges that the distance falls within a specific distance range or falls within the sensing range, it dynamically adjusts the display module according to the distance brightness. 7.根据权利要求2所述的显示装置，其中该第一预设时间与该第二预设时间为一固定时间或一可变时间。7. The display device according to claim 2, wherein the first preset time and the second preset time are a fixed time or a variable time. 8.根据权利要求1所述的显示装置，其中该感测器包括一光学感测器、一光电感测器、一超音波感测器、一电磁波感测器、一机械波感测器、一温度感测器或一影像感测器。8. The display device according to claim 1, wherein the sensor comprises an optical sensor, a photoelectric sensor, an ultrasonic sensor, an electromagnetic wave sensor, a mechanical wave sensor, a temperature sensor or an image sensor. 9.一种用来控制一显示装置的控制方法，该控制方法包括：9. A control method for controlling a display device, the control method comprising: 判断一人体是否进入或远离该显示装置之一感测范围，其中：Judging whether a human body enters or leaves a sensing range of the display device, wherein: 当判断出该人体远离该感测范围已达或超过一第一预设时间时，则关闭该显示装置或者致使该显示装置进入一省电/睡眠模式；以及，When it is determined that the human body is far away from the sensing range for or over a first preset time, then turn off the display device or cause the display device to enter a power saving/sleep mode; and, 当判断出该人体进入该感测范围已达或超过一第二预设时间时，则开启该显示装置。When it is judged that the human body enters the sensing range and has reached or exceeded a second preset time, the display device is turned on. 10.根据权利要求9所述的用来控制该显示装置的控制方法，其中致使该显示装置进入该省电/睡眠模式的步骤包含有：10. The control method for controlling the display device according to claim 9, wherein the step of causing the display device to enter the power saving/sleep mode comprises: 降低该显示装置的亮度，以使该显示装置进入该省电/睡眠模式。reducing the brightness of the display device, so that the display device enters the power saving/sleep mode. 11.根据权利要求10所述的用来控制该显示装置的控制方法，还包括：11. The control method for controlling the display device according to claim 10, further comprising: 分析该人体与该显示装置之间的一距离，并据以调整该显示装置的显示亮度。A distance between the human body and the display device is analyzed, and the display brightness of the display device is adjusted accordingly. 12.根据权利要求11所述的用来控制该显示装置的控制方法，其中当判断出该距离落入该感测范围或是一特定距离范围时，则动态地调整该显示装置的显示亮度。12. The control method for controlling the display device according to claim 11, wherein when it is determined that the distance falls within the sensing range or a specific distance range, the display brightness of the display device is dynamically adjusted. 13.根据权利要求9所述的用来控制该显示装置的方法，其中该第一预设时间与该第二预设时间为一固定时间或一可变时间。13. The method for controlling the display device according to claim 9, wherein the first preset time and the second preset time are a fixed time or a variable time. 14.一种投影装置，包括：14. A projection device comprising: 一投影光源；a projection light source; 至少一感测器，用以当该投影装置处于开机状态下，产生一感测信号，该感测信号对应该投影装置与一投射面的距离；At least one sensor is used to generate a sensing signal when the projection device is turned on, and the sensing signal corresponds to the distance between the projection device and a projection surface; 一处理单元，连接该感测器，用以撷取并处理该感测信号，以获得一感测数据；以及，a processing unit connected to the sensor for capturing and processing the sensing signal to obtain sensing data; and, 一控制单元，连接该处理单元与该投影光源，用以依据该感测数据来分析并判断该投影装置与该投射面之间的一距离，以当该距离落入一预设距离范围区间已达一第一预设时间时，则根据该距离的长短调整该投影亮度；以及当该控制单元判断出该距离超过该预设距离范围已达一第二预设时间时，则使该投影装置关闭、进入一省电/睡眠模式、进入一待机模式、关闭该投影光源或将该投影光源设定于一特定亮度。A control unit, connected to the processing unit and the projection light source, for analyzing and judging a distance between the projection device and the projection surface according to the sensing data, so that when the distance falls within a preset distance range interval When a first preset time is reached, the projection brightness is adjusted according to the length of the distance; and when the control unit determines that the distance exceeds the preset distance range for a second preset time, the projection device Turn off, enter a power saving/sleep mode, enter a standby mode, turn off the projection light source or set the projection light source at a specific brightness. 15.根据权利要求14所述的投影装置，其中当该控制单元判断出该距离落入该预设距离范围且该距离越长时，则增加该投影光源的亮度。15. The projection device according to claim 14, wherein when the control unit determines that the distance falls within the preset distance range and the distance is longer, then the brightness of the projection light source is increased. 16.根据权利要求14所述的投影装置，其中当该控制单元判断出该距离落入该预设距离范围且该距离越短时，则降低该投影光源的亮度。16. The projection device according to claim 14, wherein when the control unit determines that the distance falls within the preset distance range and the distance is shorter, the brightness of the projection light source is reduced. 17.根据权利要求14所述的投影装置，其中该第一预设时间与该第二预设时间为一固定时间或一可变时间。17. The projection device according to claim 14, wherein the first preset time and the second preset time are a fixed time or a variable time. 18.根据权利要求14所述的投影装置，其中该感测器包括一光学感测器、一光电感测器、一超音波感测器、一电磁波感测器、一机械波感测器、一温度感测器或一影像感测器。18. The projection device according to claim 14, wherein the sensor comprises an optical sensor, a photoelectric sensor, an ultrasonic sensor, an electromagnetic sensor, a mechanical sensor, a temperature sensor or an image sensor. 19.根据权利要求14所述的投影装置，其中该投影装置包括一投影机、一单枪投影机、一幻灯片播放机或一戏院电影影片播放器。19. The projection device according to claim 14, wherein the projection device comprises a projector, a single shot projector, a slide show player or a cinema movie player. 20.一种用来控制一投影装置的控制方法，该投影装置包含一投影光源，该控制方法包括：20. A control method for controlling a projection device, the projection device comprising a projection light source, the control method comprising: 当该投影装置处于开机状态下，判断该投影装置与一投射面之间的一距离；When the projection device is turned on, determine a distance between the projection device and a projection surface; 当判断出该距离落入一预设距离范围已达一第一预设时间时，则根据该距离的长短控制该投影装置的一投影光源的亮度；以及，When it is determined that the distance falls within a preset distance range for a first preset time, then controlling the brightness of a projection light source of the projection device according to the length of the distance; and, 当判断出该距离超过或小于该预设距离范围已达一第二预设时间时，则使该投影装置关闭、进入一省电/睡眠模式、进入一待机模式、关闭该投影光源或将该投影光源设定于一特定亮度。When it is determined that the distance exceeds or is less than the preset distance range and has reached a second preset time, the projection device is turned off, enters a power saving/sleep mode, enters a standby mode, turns off the projection light source, or turns off the projection device. The projection light source is set at a specific brightness. 21.根据权利要求20所述的用来控制该投影装置的控制方法，其中当判断出该距离落入该预设距离范围且该距离越长时，则逐渐增加该投影光源的亮度。21. The control method for controlling the projection device according to claim 20, wherein when it is determined that the distance falls within the preset distance range and the distance is longer, the brightness of the projection light source is gradually increased. 22.根据权利要求20所述的用来控制该投影装置的控制方法，其中当判断出该距离落入该预设距离范围且该距离越短时，则逐渐降低该投影光源的亮度。22. The control method for controlling the projection device according to claim 20, wherein when it is determined that the distance falls within the preset distance range and the distance is shorter, the brightness of the projection light source is gradually reduced. 23.根据权利要求20所述的用来控制该投影装置的控制方法，其中该第一预设时间与该第二预设时间为一固定时间或一可变时间。23. The control method for controlling the projection device according to claim 20, wherein the first preset time and the second preset time are a fixed time or a variable time. 24.一种电子装置，包括：24. An electronic device comprising: 一影像装置，用来显示一影像；an image device for displaying an image; 至少一感测器，用以产生一感测信号，该感测信号对应一物体与该电子装置的距离；At least one sensor is used to generate a sensing signal corresponding to the distance between an object and the electronic device; 一处理单元，连接该感测器，用以撷取并处理来自该感测器的信号，以获得一感测数据；以及，a processing unit connected to the sensor for capturing and processing signals from the sensor to obtain sensing data; and, 一控制单元，连接该处理单元，用以依据该感测数据来分析并判断该电子装置与该物体之间的一相对距离，以控制该影像装置所显示的该影像的亮度。A control unit, connected to the processing unit, is used to analyze and judge a relative distance between the electronic device and the object according to the sensing data, so as to control the brightness of the image displayed by the image device.
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