CN101006392B - Projector device - Google Patents
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- CN101006392B CN101006392B CN2005800278957A CN200580027895A CN101006392B CN 101006392 B CN101006392 B CN 101006392B CN 2005800278957 A CN2005800278957 A CN 2005800278957A CN 200580027895 A CN200580027895 A CN 200580027895A CN 101006392 B CN101006392 B CN 101006392B
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Abstract
A projector device having an image forming section for forming an image, an emission section for emitting light for projecting the image formed by the image forming section on a projection surface, and a change section for changing the brightness of the light emitted from the emission section.
Description
Technical field
The present invention relates to and a kind ofly carry portable terminals such as mobile phone, project image onto the projecting plane and generate the projector apparatus of its projected image.
Background technology
The projector-equipped mobile telephone of having carried projector apparatus the mobile phone as can be known from patent documentation 1.And, by patent documentation 2 as can be known to image carries out that crescendo (fade in) is handled, the visual effect of such Flame Image Process when obtaining image replaying handled in diminuendo (fade out) image processing apparatus.
Patent documentation 1: the spy opens the 2000-236375 communique
Patent documentation 2: the spy opens the 2001-204044 communique
Summary of the invention
The problem that invention will solve
But, in existing projector-equipped mobile telephone,,, but have thermal treatment measure problem not in place along with the increase heat dissipation capacity of supplying electric current also increases for the projected image that obtains to become clear needs bigger electric current is provided to light source.And, in existing equipment, carry out Flame Image Process in order to make image crescendo, diminuendo, therefore there is the bigger problem of CPU burden.
The means that are used to deal with problems
According to first form of the present invention, a kind of projector apparatus has: the image forming part that forms image; Irradiation portion, irradiation is used for the image projection that will be formed by the image forming part light to the projecting plane; And changing unit, change is from the brightness of the light of irradiation portion irradiation.
According to second form of the present invention, in the projector apparatus of first form, preferred: as also to have the temperature information judging part, judge near the temperature information that irradiation portion is, changing unit, according to the temperature information by the temperature information judgement section judges, change is from the brightness of the light of irradiation portion irradiation.
According to the 3rd form of the present invention, in the projector apparatus of second form, preferred: changing unit, according to temperature information by the temperature information judgement section judges, change is from the brightness of the light of irradiation portion irradiation, so that near the temperature the irradiation portion keeps the following temperature of predetermined value.
According to the 4th form of the present invention, in the projector apparatus of the second or the 3rd form, preferred: the temperature information judging part has: historical storage portion, and storage is from light-struck history of irradiation portion; Prediction section, according to stored historical in the historical storage portion, near the temperature the prediction irradiation portion; And comparing section, relatively, judge temperature information by the temperature and the predetermined value of prediction section prediction.
According to the 5th form of the present invention, in any one projector apparatus of first to fourth form, preferred: as also to have the monitor of display image, when having changed brightness from the light of irradiation portion irradiation, image is shown on the monitor by changing unit.
According to the 6th form of the present invention, in any one projector apparatus of first to the 5th form, preferred: as also to have warning portion, when the brightness of having changed by changing unit from the light of irradiation portion irradiation, export warning to the user.
According to the 7th form of the present invention, in any one projector apparatus of second to the 6th form, preferred: as also to have correction unit,, proofread and correct the brightness of the image that forms by image forming part according to temperature information by the temperature information judgement section judges.
According to the 8th form of the present invention, in the projector apparatus of the 7th form, preferably: also have control part, combination control changing unit to from the change of the brightness of the light of irradiation portion irradiation, and correction unit to the correction of the brightness of the image that forms by image forming part, control part is according to image kind modification control method.
According to the 9th form of the present invention, in the projector apparatus of the 8th form, preferred: the image kind is that rest image, dynamic image, TV are play any one that receives picture, character image.
According to the tenth form of the present invention, in any one projector apparatus of second to the 6th form, preferred: changing unit makes the variation difference of brightness of the light of irradiation according to the kind of image.
According to the 11 form of the present invention, in the projector apparatus of the tenth form, preferably: the image kind is under the situation of rest image or character image, the temperature information judging part judges that according to temperature information near the irradiation portion temperature is that predetermined value is when above, changing unit changes, so that diminish from the brightness of the light of irradiation portion irradiation, when the image kind is dynamic image, regardless of the temperature information judgment result, changing unit all changes, so that diminish from the brightness of the light of irradiation portion irradiation.
According to the 12 form of the present invention, the tenth or the projector apparatus of the 11 form in, preferred: during the change of the brightness of the light that changing unit is shone, image forming part, to the opposite direction of brightness change of the light of irradiation, the brightness of change image.
According to the 13 form of the present invention, in the projector apparatus of the 12 form, preferably: make under the situation that the light of irradiation changes lowlyer in changing unit, image forming part, when the data number of the bright side of image distributes less than predetermined value, change the decline of the light of irradiation by linear coefficient, so that the brightness of image brightens, at the DATA DISTRIBUTION number of the bright side of image is that predetermined value is when above, the nonlinear factor of the bright side by suppressing image changes, so that the brightness of image brightens.
According to the 14 form of the present invention, in the projector apparatus of first form, preferred: changing unit, carry out that the change of following light handles at least any one: when image begins to show, change, so that, brighten gradually afterwards from the brightness deepening of the light of irradiation portion irradiation; And, when image finish to show, change, so that from the brightness deepening gradually of the light of irradiation portion irradiation.
According to the 15 form of the present invention, in the projector apparatus of the 14 form, preferred: irradiation portion comprises light source, changing unit, and the driving power of control light source, change is from the brightness of the light of irradiation portion irradiation.
According to the 16 form of the present invention, the 14 or the projector apparatus of the 15 form in, preferred: irradiation portion has solid-state light emitting element.
According to the 17 form of the present invention, in the projector apparatus of the 14 to the 16 form, preferably: image forming part forms many images continuously with predetermined time interval, changing unit to each image carry out that the change of following light handles at least any one: when each image begins to show, change, so that, brighten gradually afterwards from the brightness deepening of the light of irradiation portion irradiation; Show at each image and to change when finishing, so that from the brightness deepening gradually of the light of irradiation portion irradiation.
According to the 18 form of the present invention, in the projector apparatus of the 14 to the 17 form, preferred: image forming part, image replaying indication according to the user begins the formation of image, irradiation portion automatically, image replaying indication according to the user begins the irradiation of light automatically.
According to the 19 form of the present invention, in the projector apparatus of the 18 form, preferred: user's image replaying indication is the indication that begins of slide projector projection.
According to the 20 form of the present invention, in the projector apparatus of the 14 to the 19 form, preferred: image forming part, when finishing, finishes image replaying the formation of image automatically, and irradiation portion finishes the irradiation of light automatically when image replaying finishes.
According to the 21 form of the present invention, in the projector apparatus of the 14 to the 19 form, preferred: irradiation portion is driven by PWM, changing unit, drive the dutycycle of the signal of irradiation portion by continuous change, change the brightness of the light that shines from irradiation portion continuously.
And above-mentioned image forming part is replaceable to be image formation unit, and irradiation portion is replaceable to be illumination unit, and changing unit is replaceable, and the temperature information judging part is replaceable to be the temperature information judging unit in order to change the unit, and historical storage portion is replaceable to be history storage unit; Prediction section is replaceable to be predicting unit, and comparing section is replaceable to be comparing unit, and warning portion is replaceable, and correction unit is replaceable to be correcting unit in order to warn the unit, and control part is replaceable to be control module.
The invention effect
According to the present invention, therefore the brightness of the light of change irradiation portion irradiation can obtain various effects.For example, judge near the temperature information that irradiation portion is, change the brightness of the light of irradiation portion irradiation according to the temperature information of judging.So, can determine the brightness of the light of irradiation portion irradiation, carry out the heat correspondence according near the temperature the irradiation portion.And, the brightness of the light that shines when changing image projection gradually.So, can obtain the crescendo of image, the visual effect of diminuendo.In this case, need not to carry out the load that Flame Image Process just can reduce CPU.
Description of drawings
Fig. 1 is the outside drawing of the projector-equipped mobile telephone under first embodiment.
Fig. 2 is the block diagram of an embodiment of the mobile phone under expression first embodiment.
Fig. 3 is the figure of the concrete example of the dutycycle under expression High (height) pattern and Low (low) pattern.
Fig. 4 is the figure that represents the concrete example of LUT suitable in the LUT correction.
Fig. 5 is the figure of concrete example of the relation of expression brightness of led light source 21 and the magnitude of recruitment among the LUT.
Fig. 6 is the figure that represents that specifically time of brightness of the light of led light source 21 irradiation changes.
Fig. 7 is the process flow diagram of the processing of the projector-equipped mobile telephone 100 under expression first embodiment.
Fig. 8 is the figure of variation of the predicted temperature of expression luminous history of led light source 21 and led light source 21 annexes.
Fig. 9 is the process flow diagram of the processing of the projector-equipped mobile telephone 100 under expression second embodiment.
Figure 10 is the figure of the concrete example of the LUT in the expression variation.
Figure 11 be expression to an image carry out crescendo and diminuendo both the time the figure that changes of time of brightness of led light source 21.
Figure 12 is the process flow diagram of the processing of the projector-equipped mobile telephone 100 under the expression present embodiment.
Figure 13 is the figure that changes the time of the brightness of the led light source 21 under the expression variation.
Figure 14 is the process flow diagram of the processing of the projector-equipped mobile telephone 100 under expression the 4th embodiment.
Figure 15 is the figure of implementation method of the variation of expression visual effect.
Embodiment
First embodiment
Fig. 1 is the outside drawing of the projector-equipped mobile telephone under first embodiment, Fig. 1 (a) is an outboard profile, Fig. 1 (b) is a front view (FV). shown in Fig. 1 (a), in the mobile phone 100, display part 102 and operating portion 103 can be folding by folding hinge portion 101. and shown in Fig. 1 (b), have on the lateral surface of display part 102: the camera section 102a that is used for photographic images; With project image onto on the projecting plane and generate the Projection Division 102b. of its projected image
Fig. 2 is the block diagram of an embodiment of the mobile phone under expression first embodiment.Projector-equipped mobile telephone 100 as mentioned above, by folding hinge portion 101, display part 102, and operating portion 103 constitute.Folding hinge portion 101 is by user operation, has the switching angle SW 101a of the switching angle that is used to regulate display part 102 and operating portion 103.
In camera 102a, photographic lens 11 is driven by lens drive division 13 front and back, can amplify, dwindle the body that is taken.And, when photographic lens 11 when being taken body, to take, in CCD 12, accumulate and the electric charge of the volume image correspondence that is taken as capturing element according to the conditions of exposure of body brightness settings of being taken.The electric charge of accumulating among the CCD 12 carries out the A/D conversion by CPU, the camera control apparatus 13 that contains other peripheral circuits, is converted to digital signal.Afterwards, carry out various Flame Image Process such as compression processing such as white balance adjustment, the predefined picture format of boil down to, for example jpeg format.Image data storage after the Flame Image Process is shown on the LCD monitor 102c in storer 103g simultaneously.
Above-mentioned processing is for example carried out in the mode of handling 30 two field pictures 1 second, and the image of having taken the body that is taken in LCD monitor 102c is updated successively, and shows general image.In the projector-equipped mobile telephone 100 under first embodiment,, can select dynamic image screening-mode and rest image screening-mode as the image taking pattern of camera 102a.The user uses the input media 103f that carries in the operating portion 103, can select any one screening-mode.
Selected by the user under the situation of dynamic image screening-mode, when when above-mentioned general image shows, under sequential arbitrarily, pressing release key 102d by the user,, by in during till pressing once more the general image of taking is temporarily stored in the storer 104 as dynamic image up to release key.Afterwards, after having carried out various Flame Image Process, be saved among the storage card 103h that carries in the operating portion 103.On the other hand, selected under the situation of rest image pattern, when pressing release key 102d by the user under sequential arbitrarily, the image that shows among the LCD monitor 102c is taken as rest image.The image of taking temporarily stores storer 104 into, after finishing various Flame Image Process, is saved among the storage card 103h that carries on the operating portion 103 afterwards.
Led light source 21 uses the White LED of the high brightness type of current drives greatly. promptly, in common LED, the size of illuminating part about with 0.3mm * 0.3mm flows into the electric current about 20mA and makes it luminous, and in the big current mode device that uses among the projector apparatus 102b under first embodiment, illuminating part be about 1mm * 1mm than large tracts of land, flow into the big electric current of 200mA～350mA, and make it luminous. so, compare with general LED and can obtain nearly 10 times light quantity.
Liquid crystal drive portion 25, according to the view data Generation Liquid crystal panel drive signal of the projection objects of sending by CPU 103a, and by the drive liquid crystal panel 22 by generation, thereby the projection objects image is shown on the liquid crystal panel 22.Particularly, apply voltage with the picture signal correspondence according to each pixel to liquid crystal layer.The liquid crystal molecule state that has applied the liquid crystal layer of voltage changes, and the transmittance of this liquid crystal panel 22 changes.By the change of transmitance, image is shown on the liquid crystal panel 22.
When controlling above-mentioned projector apparatus 102b and projecting image onto on the screen, CPU 103a goes up the image that shows by the user with LCD monitor 102c and sends to liquid crystal drive portion 26, and is shown on the liquid crystal panel 22, and control LED drive division 24 is with from led light source 21 irradiation light.So, the same with general projector, can project image onto screen.And CPU 103a carries out digital processing to the view data that shows, for example following LUT (LookUp Table) handles, and can make image either overt or covert, and can degree of comparing adjustment, the color adjustment.
Correction describes to LUT at this.In the present embodiment, as mentioned above, thereby change the luminosity that dutycycles change led light sources 21 by LED drive division 24.When 50% when making dutycycle from height mode drops to low mode 20% and when changing the brightness of light of led light source 21 irradiation projects to the brightness deepening of the image of screen.At this moment, in order to proofread and correct the variation of the brightness of image that projects to screen, CPU 103a carries out LUT in advance to the view data of the projection objects that sends to liquid crystal drive portion 25 and proofreaies and correct, and changes according to the brightness of the light of led light source 21 irradiations and proofreaies and correct, and view data is brightened.Particularly, for dutycycle is corrected to 20% from 50% decline 30%, carry out the processing of the following stated.
Particularly,, therefore do not carry out LUT and proofread and correct, perhaps shown in Fig. 4 (a), be suitable for input value is directly carried out the LUT correction as the linear LUT of output valve owing to when height mode, need not the brightness of correcting image.Relative with it, when low mode,, linear LUT is changed according to the brightness distribution curve of image in order to proofread and correct from the minimizing of the brightness of the light of led light source 21 irradiation.For example, make the brightness distribution curve of image, judge that according to distribution curve DATA DISTRIBUTION number in the scope be equivalent to three one-tenth in the higher side of brightness (a bright side) is whether more than predetermined value.
For example, shown in Fig. 4 (b), in distribution curve 41, if the DATA DISTRIBUTION number of scope that is equivalent to three one-tenth in a bright side is less than predetermined value, then change the inclination of linear LUT as shown in the reference numeral 42, reduce with the light quantity of proofreading and correct three one-tenth. afterwards, the view data of projection objects is suitable for LUT and proofreaies and correct. so, generally speaking in the brightness distribution curve of making according to view data, according to the few fact of data volume that in a brighter side, is equivalent to exist in three one-tenth the scope, can proofread and correct the less image of bright spot conscientiously. promptly, view data is proofreaied and correct by linear coefficient.
Relative with it, for example, shown in Fig. 4 (c), in distribution curve 43, the DATA DISTRIBUTION number of scope that is equivalent to three one-tenths in a bright side is when predetermined value is above, in order to improve the brightness of integral body, as shown in the reference numeral 44, multiply by γ, only improve shadow tone to linear LUT.Afterwards, the suitable LUT of the view data of projection objects is proofreaied and correct.So, can avoid the whiting of a brighter side and weak point occur, and improve whole brightness, proofread and correct the minimizing of brightness of the light of led light source 21 irradiations.That is, with the view data of a bright side the repressed nonlinear factor of change, image correcting data to bright direction.
The brightness of led light source 21 and the relation of the magnitude of recruitment among the LUT are as shown in Figure 5.That is, when changing the brightness of led light source 21, do not consider the weak point of image, when replenishing with LUT all, the brightness of led light source 21 and the relation of the magnitude of recruitment under the LUT become the single-point line shown in the label 51.In this case, its relation is: if the brightness during height mode is 100%, then LUT keeps linear, and magnitude of recruitment is 0, and when making light source decline n%, magnitude of recruitment is n%.
But, as mentioned above, the image weak point appears when only having this relation to change LUT sometimes.Therefore light-source brightness near 100% zone in, to change LUT, suppress magnitude of recruitment along with the light source deepening with the approaching relation of above-mentioned straight line.For example, the relation shown in label 52 is that limit makes it saturated with magnitude of recruitment 40%.So, the light that makes led light source 21 irradiation is slightly during deepening, proofreaies and correct by LUT to keep brightness, when making it significantly during deepening, proofreaies and correct and is not corrected to original luminance level though carry out LUT, therefore can prevent the weak point of image.
When carrying out the image projection of projector apparatus 102b, the user at first selects as the image of projection objects and is shown on the LCD monitor 102c.As the projection objects image, rest image or the dynamic image that can select to store among the storage card 103h, comprise the image that receives literal such as mail, and play by the TV that TV tuner 103i receives in any one, be shown to LCD monitor 102c as the image of projection objects.CPU 103a is shown to the image of projection objects on the LCD monitor 102c by the user, when indication beginning projection, finishes the demonstration to LCD monitor 102c, controls projector apparatus 102b simultaneously, the projection of beginning image.
In the projector-equipped mobile telephone 100 under first embodiment, as mentioned above, as the led light source 21 of projector apparatus 102b, use is the White LED of the high brightness type of current drives greatly.So, flow into the concurrent light time of big electric current to high-brightness LED, with to use common LED to compare the heating quantitative change big, this heat becomes and causes LED brightness decline, damage reasons.Therefore, need to suppress heat or the suitably heat radiation that led light source 21 produces.Therefore CPU103a according to the kind of each projection objects image, makes the projecting method of image change to (4) as following (1) according to following all temps information.
When (1) kind of projection objects image is " rest image "
When the kind of projection objects image is " rest image ", will use the hot alignment processing of execution as described below as temperature information near the temperature the led light source 21 of temperature sensor 27 outputs.CPU 103a sends to the Still image data of projection objects liquid crystal drive portion 26 and is shown to liquid crystal panel 22, and control LED drive division 24, makes under above-mentioned height mode from led light source 21 irradiates lights.
Afterwards, monitor near the temperature position of being provided with of led light source 21 according to the output of temperature sensor 27. and, when near the position temperature be set become predefined ceiling temperature of led light source 21, control LED control part 24, make the dutycycle of led light source 21 drop to above-mentioned low mode gradually. so, can suppress the heat that led light source 21 produces. and, ceiling temperature is set to a certain temperature and multiply by certain safety coefficient and the temperature calculated, for example 80 ℃, above-mentioned a certain temperature is, when near the temperature the led light source 21 rise to this a certain temperature when above, the temperature that led light source or its peripherals can have problems.
For example, shown in Fig. 6 (a), dutycycle is 50%, promptly with height mode during from led light source 21 irradiates lights, during near the position temperature be set under moment T, become predefined ceiling temperature of led light source 21, make the dutycycle of led light source 21 drop to 20% gradually, promptly drop to low mode, prevent that near the temperature in position that is provided with of led light source 21 from rising.And, shown in Fig. 6 (b), make dutycycle cyclical variation between height mode and low mode of led light source 21, perhaps shown in Fig. 6 (c), drop to low mode from height mode interimly, can suppress the heat that produces from led light source 21.
And as mentioned above, when making the brightness variation of led light source 21, the view data that sends to liquid crystal drive portion 26 is carried out LUT proofread and correct, change the brightness of image.That is, when the light that shines from led light source 21 is dark, according to the amount of this deepening image is carried out the LUT processing and make it brighter, when the light that shines from led light source 21 is brighter, according to this amount that brightens image is carried out the LUT processing and make it darker.When the brightness of the light that changes led light source 21 irradiations, the brightness that projects to the image of screen changes, so the user might not feel well, but as mentioned above, change the brightness of image according to variable quantity, change thereby can relax visual brightness from the brightness of the light of led light source 21 irradiation.
When (2) kind of projection objects image is " image that contains the literal that receives mail etc. "
When the kind of projection objects image is " image that contains the literal that receives mail etc. ", the kind of the projection objects image (1) is the same when being " rest image ", to use as temperature information near the temperature the led light source 21 of temperature sensor 27 outputs, carry out hot alignment processing.That is, CPU 103a, the image data transmission of picture that will show the mail that is received by the user on LCD monitor 102c is to liquid crystal drive portion 26, and is presented at liquid crystal panel 22, and carries out and (1) same processing.
When (3) kind of projection objects image is " dynamic image "
When the kind of projection objects image is " dynamic image ",, the kind of projection objects image is carried out hot alignment processing for the situation of " dynamic image " as temperature information according to the situation that continuous playback dynamic image rises near led light source 21 temperature.That is, CPU 103a control LED drive division 24, making from the brightness of the light of led light source 21 irradiations is above-mentioned low mode.And, the dynamic image data of projection objects is carried out LUT proofreaies and correct image is brightened, finish this correction after, dynamic image data is sent to liquid crystal drive portion 26, be shown to liquid crystal panel 22, and the projection dynamic image.In addition, in the dynamic image projection process, do not change the brightness of the light of led light source 21 irradiations.So, the heat that can suppress led light source 21 generations rises to prevent near the temperature the led light source 21, in the dynamic image procedure for displaying brightness is maintained fixed simultaneously, and the user is not felt well.
When (4) kind of projection objects image is " TV playing image "
When the kind of projection objects image was " TV playing image ", near the temperature the led light source 21 that the same TV playing image that needs to consider to reset continuously with (3) causes rose.In TV plays,, therefore can utilize the time among the CM to carry out heat emission owing to can insert CM in the program.Therefore this moment, CPU 103a detects the CM portion of the TV broadcast of TV tuner 103i reception, and it is carried out hot alignment processing as temperature information.That is, control LED drive division 24 makes that only making the brightness from the light of led light source 21 irradiations when CM is low mode.
The method of the CM portion that plays as the TV that detect to receive, as the CM that has to cut off the video recorder of function such, detect the stereophonic signal that TV contains in playing, detect stereophonic signal during, be judged as during CM plays.So, only making the brightness of the light of led light source 21 irradiation when CM is low mode, even also can utilize audiovisual to the user less time that exerts an influence to bring the heat that suppresses led light source 21 generations when projected image is dark.
Fig. 7 is the process flow diagram of the processing of the projector-equipped mobile telephone 100 under expression first embodiment.Processing shown in Figure 7 as the program that the power supply of connecting projector-equipped mobile telephone 100 will start, is carried out by CPU 103a.In step S10, judge whether the user has indicated the beginning image projection.When judging that the user has indicated the beginning image projection, advance to step S20, judge whether the user has selected the image of projection objects.When judging that the user has selected the projection objects image, advance to step S21, disconnect the back of the body lamp of LCD monitor 102 etc., the demonstration of fragmentary picture in LCD monitor 102c.Advance to step S30 afterwards.
In step S30, judge the kind of the projection objects image of selecting.When the kind of judging the projection objects image is rest image or character image, advance to step S40.In step S40, control LED drive division 24 as mentioned above, the luminosity of led light source 21 is set at height mode, advance to step S50.In step S50, the image data transmission of projection objects to liquid crystal drive portion 25, and is projected image onto screen.This moment the view data that sends not being carried out LUT proofreaies and correct.Advance to step S60 afterwards,, judge whether near the temperature that is provided with the position of led light source 21 has reached predefined ceiling temperature according to the output of temperature sensor 27.When judging near the position temperature is set has arrived ceiling temperature of led light source 21, advance to step S70.
In step S70, control LED drive division 24 makes the dutycycle of led light source 21 drop to above-mentioned low mode gradually, along with the decline of dutycycle is carried out proofreading and correct with the LUT of its decline degree correspondence to view data.Afterwards, advance to step S80,, judge whether near the temperature that is provided with the position of led light source 21 has dropped to predefined lower limit temperature according to the output of temperature sensor 27.When near the temperature that the position is set of judging led light source 21 drops to lower limit temperature, advance to step S90.
In step S90, control LED drive division 24 makes the dutycycle of led light source 21 rise to height mode gradually, and the LUT that changes view data along with the rising of dutycycle proofreaies and correct.And, when turning back to height mode, stop LUT and proofread and correct.Advance to step S100 afterwards.In step S100, judging whether the user indicates finishes the beam images projection, when judging that indication finishes, turns back to step S60.Relative with it, when end has been indicated in judgement, advance to following step S220.
Then the processing the when kind of projection objects image is dynamic image is judged in explanation in step S30.Advance to step S110 in this case.In step S110, control LED drive division 24 is set at low mode with the luminosity of led light source 21, advances to step S120.In step S120,, the dynamic image data of projection objects is carried out LUT proofread and correct, and advance to step S130 for the luminosity that relaxes because of led light source 21 becomes the situation that low mode causes the image deepening of projection.
In step S130, the dynamic image data to liquid crystal drive portion 25 sends projection objects projects to screen with dynamic image, and advances to step S140.In step S140, judging whether the user indicates finishes the beam images projection, when end has been indicated in judgement, advances to following step S220.
When the kind of judgement projection objects image is the TV playing image in step S30, advance to step S150.In step S150, control LED drive division 24 is set at height mode with the luminosity of led light source 21, advances to step S160.In step S160, send the TV playing image data that receive by TV tuner 103i to liquid crystal drive portion 25, the TV playing image is projected to screen.Advance to step S170 afterwards,, detect CM by from the TV playing image data that receive, detecting stereophonic signal.And, when judgement has detected CM, advance to step S180.
In step S180, control LED drive division 24, the luminosity of led light source 21 is set at low mode, advance to step S190. in step S190, judge whether CM finishes, whether the detection that is CM finishes. when judging that CM finishes, advance to step S200. in step S200, control LED drive division 24, make the luminosity of led light source 21 turn back to height mode, and advance to step S210. in step S210, judging whether the user indicates finishes the beam images projection, when judging that indication does not finish, it is relative with it to turn back to step S170., when end has been indicated in judgement, advances to step S220.
In step S220, control LED drive division 24 finishes the irradiation from the light of led light source 21, disconnects projector.Advance to step S230 afterwards, the back of the body lamp by connecting LCD monitor 102c etc. are connected the demonstration of image on LCD monitor 102c, advance to step S240.In step S240, judge whether the user has disconnected the power supply of projector-equipped mobile telephone 100, when not disconnecting, turn back to step S10 and repeat above-mentioned processing.Relative with it, when judgement has disconnected the power supply of projector-equipped mobile telephone 100, end process.
First embodiment according to above explanation can obtain following action effect.
(1) near the temperature information the judgement led light source 21 is according to the brightness of the temperature information change of judging from the light of led light source 21 irradiations.So, can determine the brightness of the light of led light source 21 irradiations according near the temperature information the led light source 21, and carry out the heat correspondence.
When (2) kind when the projection objects image is " rest image " or " image that contains the literal that receives mail etc. ", after under height mode, beginning projection, when the temperature of led light source 21 becomes predetermined value, control LED drive division 24 makes the dutycycle of led light source 21 drop to above-mentioned low mode gradually.So, can suppress the heat that led light source 21 produces.
(3) when the kind of projection objects image is " dynamic image ", will be low mode and projection from the brightness settings of the light of led light source 21 irradiation.And, the image of projection objects is carried out LUT proofreaies and correct, and so that after the mode that image brightens proofreaies and correct, dynamic image data is sent to liquid crystal drive portion 26, be shown on the liquid crystal panel 22, with the projection dynamic image.So, can suppress the heat that led light source 21 produces, when dynamic image shows, improve brightness simultaneously, and brightness is maintained fixed, therefore the user is not felt well.
When (4) kind when the projection objects image is " TV playing image ", under height mode, after the beginning projection, when detecting the CM of the TV broadcast that receives by the tuning 103i of TV, only when CM, make the brightness of the light of led light source 21 irradiations change to low mode.So, even also can utilizing during the user influences less CM, the image deepening of projection suppresses the heat that led light source 21 produces.
(second embodiment)
In second embodiment, when the kind of projection objects image during for " rest image " or " image that contains the literal that receives mail etc. ", not according to by the temperature of temperature sensor 27 detected led light sources 21 according to the luminous history of historical storage to the led light source 21 of storer 103g, near the led light source 21 of utilization prediction temperature, control is from the brightness of the light of led light source 21 irradiations.And, when the kind of projection objects image is " TV playing image ", during CM, extinguishes led light source 21 and disconnect projector, and image is shown to LCD monitor 102c, near the temperature the reduction led light source 21.
In addition, Fig. 1, Fig. 2 of illustrating in the outside drawing of projector-equipped mobile telephone and block diagram and first embodiment are identical, therefore omit its explanation.And the processing when the kind of projection objects image is " dynamic image ", when reaching " TV playing image " is identical with the processing in first embodiment, therefore omits its explanation.
At first, CPU 103a is when led light source 21 beginnings are luminous, read in before it luminous history of 5 minutes, when led light source 21 is not luminous during this period, be that led light source 21 is when continuing to extinguish more than 5 minutes, near the prediction led light source 21 temperature is predefined initial temperature, for example 30 ℃. this be because, if led light source 21 continued to extinguish more than 5 minutes generally speaking, then near the temperature the led light source 21 becomes the initial temperature identical with environment temperature because of natural air cooling. on the other hand, in before 5 minutes, when led light source 21 is luminous, can calculate current predicted temperature by following method.
Afterwards, judge that led light source 21 is luminous with which of height mode and low mode,, predict near the temperature the current led light source 21 according to this luminance.That is, lamp is brighter under height mode, but it is more to generate heat.Relative with it, darker under the low mode, but it is less to generate heat, and can take into account thermal diffusivity simultaneously.And, natural air cooling when turning off the light.Predict near the temperature the current led light source 21 for the feature of considering the temperature variation under the various patterns, the temperature variation under each pattern is for example carried out as giving a definition.
(1) temperature variation during height mode
When height mode, near the temperature the led light source 21 rises with 2 ℃/second ratio.
(2) temperature variation during low mode
When low mode, near the temperature-resistantization led light source 21.
Temperature variation when (3) turning off the light
When turning off the light, near the temperature the led light source 21 descends with 1 ℃/second ratio.
Near the led light source 21 under these each patterns temperature variation is determined according to the experiment value of measuring in advance, and is stored among the storer 103g.CPU 103a uses the temperature variation of the chronomere under each pattern, by following formula (1) near the temperature the current temperature prediction led light source 21.
Predicted temperature=the initial temperature of temperature+∑ ((lighting time under each pattern) * (temperature variation of the chronomere under each pattern)) ... (1)
The state continuance of turning off the light, thus when making the predicted temperature that calculates by formula (1) be lower than initial temperature, predicted temperature is modified to initial temperature.This be because, even natural air cooling continues, temperature can infinitely not descend yet, with the initial temperature of environment temperature balance under temperature stabilization.
And, CPU 103a, when the current predicted temperature that calculates by formula (1) arrived predefined ceiling temperature, control LED drive division 24 carried out mode altering, rose to suppress temperature.In addition, ceiling temperature is the same with first embodiment, be set at and multiply by certain safety coefficient to a certain temperature and the temperature that calculates, for example be set at 80 ℃, above-mentioned a certain temperature is, when near the temperature the led light source 21 rise to the temperature that this a certain temperature when above, led light source or its peripherals can have problems.
For example, according to the luminous history till luminous historical judge current of the led light source of storing among the storer 103g 21, shown in Fig. 8 (a), extinguish after luminous with height mode in 20 seconds from luminous beginning under 10 seconds the situation, when initial temperature was 30 ℃, current predicted temperature calculated by following formula (2).
The predicted temperature of temperature=30 (℃)+(2 (℃/second) * 20 (second)+(1) (℃/second) * 10 (second))=60 (℃) ... (2)
That is, near the predicted temperature the led light source 21, beginning luminous till current during in, shown in Fig. 8 (b), change like that, current predicted temperature is 60 ℃.Under this state, shown in Fig. 8 (a), begin when luminous with height mode once more from current beginning, measurablely can arrive 80 ℃ of ceiling temperatures through 10 seconds again.And, in fact begin through after 10 seconds from current, when near the predicted temperatures the led light source 21 reach 80 ℃ of ceiling temperature, further rise in order to prevent temperature, control LED drive division 24 is transformed into low mode.And, the same with first embodiment when being transformed into low mode, for the brightness of the image of keeping projection, carry out LUT and proofread and correct.At this moment, be transformed into low mode, connect the demonstration of LCD monitor 102c, show alert message in order to notify the user simultaneously, and by loudspeaker 102e output warning tones.
So, can be no more than higher limit ground keeps 80 ℃ temperature and continues to carry out the projection of projection objects image. further, by the LUT correction brightness decline of led light source 21 is proofreaied and correct, thereby reduce the variation of the brightness of image of projection, the user can not felt well. afterwards shown in Fig. 8 (a), after low mode continued 15 seconds by user's indication LED light source turn off the light, when promptly indication finishes projection, shown in Fig. 8 (b), near the temperature the led light source 21 drops to 30 degree of initial temperature with 1 ℃/second ratio.
Fig. 9 is the process flow diagram of the processing of the projector-equipped mobile telephone 100 under expression second embodiment.In the processing shown in Figure 9,, carry out by CPU 103a as the program that the power supply of connecting projector-equipped mobile telephone 100 will start.In addition, to first embodiment in the identical step of processing shown in Figure 7, be marked with identical step numbers and omit its explanation, only difference is described.In step S41,, predict near the temperature the current led light source 21 according to the luminous history of the led light source of storing among the storer 103g 21.Advance to step S42 afterwards.
In step S42, judge whether near the predicted temperature the current led light source 21 reaches predefined ceiling temperature.When near the predicted temperatures judging current led light source 21 do not reach ceiling temperature, advance to step S43, control LED drive division 24 makes under height mode and the projection objects image to be carried out projection, and turn back to step S41 from led light source 21 irradiates lights.On the other hand, when near the predicted temperature judging current led light source 21 has arrived ceiling temperature, advance to step S44, disconnect the demonstration of LCD monitor 102c, and advance to step S45.
In step S45, in order to be transformed into low mode one thing, show alert message to LCD monitor 102c to user's notice, and via loudspeaker 102e output warning tones.Advance to step S70 afterwards, control LED drive division 24 also makes the dutycycle of led light source 21 drop to above-mentioned low mode gradually, to view data along with the decline of dutycycle is carried out proofreading and correct with the LUT of its decline degree correspondence.
And, in step S170, judge when detecting CM, advance to step S181.In step S181, control LED drive division 24 extinguishes led light source 21, disconnects projector, and connects the backlight of LCD monitor 102c, image is shown to LCD monitor 102c, and is advanced to step S190.Judge in step S90 when the CM that is through with detects, advance to step S191, control LED drive division 24 turns back to height mode with led light source 21, connects projector, disconnects the backlight of LCD monitor 102c, finishes the demonstration of image to LCD monitor 102c.
According to second embodiment of above explanation, the action effect under first embodiment, also can obtain following effect.
(1) when the kind of projection objects image is " rest image " or " containing the image that receives literal such as mail ", luminous history according to the led light source of storing among the storer 103g 21, near the prediction led light source 21 current temperature, the brightness of the light of control led light source 21 irradiations is so that be no more than predefined higher limit near the led light source 21.So, even do not carry measuring equipment such as temperature sensor, also can monitor near the temperature the led light source 21, and carry out heat correspondence.
When (2) kind when the projection objects image is " TV playing image ", when detecting CM, extinguishes led light source 21 and disconnect projector, and image is shown to LCD monitor 102c.And, when the detection of the CM that is through with, led light source 21 is turned back to height mode and disconnects projector, finish the demonstration of image to LCD monitor 102c.So, the user is influenced the less CM time, make near the heat heat radiation the led light source 21 even also can utilize when switching to the demonstration purpose LCD monitor 102c of image.
(variation)
In addition, the mobile phone under the above-mentioned embodiment also can followingly be out of shape.
(1) in above-mentioned first, second embodiment, the projector-equipped mobile telephone 100 of structure shown in Figure 2 has been described, but has been not limited thereto, further applicable to all mobile phones that carried sub-liquid crystal, gps antenna, infrared communication portion etc.
(2) in above-mentioned first, second embodiment, with the rest image of projector 102b projection or dynamic image is that rest image or the dynamic image of being taken by camera 102a is that example is illustrated. but being not limited thereto, for example also can be rest image, the dynamic image that is taken into from external unit by exterior I/F 103k, not shown infrared communication portion etc.
(3) in above-mentioned first, second embodiment, when changing to low mode, simultaneously the projection objects view data is carried out that LUT proofreaies and correct and the brightness that relaxes the image of projection drops to example and is illustrated with brightness with the light of led light source 21 irradiation.But also can select whether to carry out simultaneously LUT proofread and correct, only carry out the LUT timing simultaneously being set at the user, the brightness of the light of led light source 21 irradiations is changed to low mode, simultaneously the projection objects view data is carried out LUT and proofread and correct by the user.
(4) in above-mentioned first, second embodiment, to make the brightness distribution curve of projection objects image, judge in the higher side of brightness according to distribution curve to be equivalent to DATA DISTRIBUTION number in three one-tenth scopes whether more than predetermined value, and view data is carried out the example that LUT proofreaies and correct according to this judged result.But be not limited thereto, also available other algorithms carry out LUT and proofread and correct.For example,, carry out LUT and proofread and correct, multiply by the LUT shown in Figure 10 (b), and multiply by γ in the scope of its shadow tone when the brightness distribution curve of projection objects image is situation shown in Figure 10 (a), is projection objects image when being the more image of shadow tone.And shown in Figure 10 (c), when the distribution curve of projection objects image to black one side near the time, also can multiply by the LUT shown in Figure 10 (d), the LUT that sets up the contrast of black one side proofreaies and correct.So, can change LUT according to the DATA DISTRIBUTION in the projection objects image.
(5) in above-mentioned first, second embodiment, when the kind of projection objects image is " rest image " or " containing the image that receives literal such as mail ", reach near the temperature the led light source 21 under the situation of higher limit, make the brightness deepening (low mode) of the light of led light source 21 irradiations, prevent that led light source 21 temperature from rising.But be not limited thereto, in the time of also can reaching higher limit, extinguish the projection that led light source 21 stops the projection objects image, and the projection objects image is shown to LCD monitor 102c near the temperature the led light source 21.
(6) in above-mentioned first, second embodiment, LED drive division 24 is changeable to be any one of height mode, low mode, with the luminosity of change led light source 21.But be not limited thereto, LED drive division 24 is also changeable to be above a plurality of patterns of three stages.
(7) in above-mentioned first, second embodiment, carry the various examples that are treated to of carrying out in the projector-equipped mobile telephone of mobile phone with projector apparatus 102b and be illustrated projected image.But be not limited thereto, also applicable to the personal digital assistant device of the subsidiary projector such as PDA that carried projector apparatus, general placed type projector apparatus.
(8) in above-mentioned first, second embodiment,, but be not limited thereto so that White LED is an example is illustrated as the light source of projector apparatus 102b, for example also can use other light sources such as Halogen lamp LED, organic EL.
(the 3rd embodiment)
In the 3rd embodiment, the brightness of the light that shines by change led light source 21 when image projection makes image crescendo, diminuendo.In addition, Fig. 1, Fig. 2 of illustrating in the outside drawing of projector-equipped mobile telephone and block diagram and first embodiment are identical, therefore omit explanation.
In the present embodiment, be that 50% state is defined as " bright state " with above-mentioned dutycycle, be that 20% state is defined as " dark state " with dutycycle.And LED drive division 24 can change dutycycle continuously, makes the brightness of led light source 21 vary continuously to " dark state " from " bright state ".So,, only change dutycycle and get final product, need not to apply the processing of intensification modulation, therefore can reduce the load of CPU 103a to view data in order to change brightness of image.
Liquid crystal drive portion 25 by the drive liquid crystal panel 22 that generates, thereby is shown to liquid crystal panel 22 with the playback object image according to the view data Generation Liquid crystal panel drive signal of the playback object of CPU 103a transmission.Particularly, apply voltage with the picture signal correspondence according to each pixel to liquid crystal layer.The liquid crystal molecule state that has applied the liquid crystal layer of voltage changes, and the transmittance of this liquid crystal panel changes.By the variation of transmittance, image is shown to liquid crystal panel 22.
In the present embodiment, can select is that image is shown to LCD monitor 101c, still control projector apparatus 102b and project to screen, when controlling projector apparatus 102b indication and project image onto screen by the user, CPU 103a sends to liquid crystal drive portion 26 to be shown to liquid crystal panel 22 with the image that the user selects, and control LED drive division 24 is with from led light source 21 irradiates lights.At this moment, CPU 103a carries out following control to LED drive division 24, makes image crescendo, the diminuendo of projection on the screen, increases visual effect.
(1) during the image crescendo
When making the image crescendo, CPU 103a makes the brightness of led light source 21 when image begins to show be above-mentioned " dark state ", is gradually varied to afterwards and controls LED drive division 24 " bright state ".That is, CPU 103a control LED drive division 24 is set at 20% with above-mentioned dutycycle when image begins to show, make dutycycle rise to 50% with certain proportion afterwards.So, when image begins to show, project to the image deepening of screen, bright gradually afterwards, thus can increase the visual effect of crescendo.
(2) during the image diminuendo
When making the image diminuendo, during with " bright state " projection, control LED drive division 24 makes it gradually become " dark state " to CPU 103a at image.That is, be under 50% the state during projected image in above-mentioned dutycycle, CPU 103a control LED drive division 24 makes dutycycle reduce to 20% with fixing ratio.So, project to the image deepening gradually on the screen, therefore can increase the visual effect of diminuendo.
Whether carry out crescendo during image projection, diminuendo can be set in advance, can select " carrying out simultaneously ", " carrying out any one " to reach " not carrying out any one " to diminuendo, the crescendo of an image.And, can carry out slideshow by many images are shown at interval continuously with preset time, when carrying out slideshow, carry out projection when can carry out crescendo and/or diminuendo to each image.
Figure 11 is the figure that changes the time of the brightness of the led light source 21 of expression when an image carried out crescendo and diminuendo simultaneously.As shown in figure 11, beginning at image under the moment 4a of projection, the brightness of led light source 21 is made as " dark state ", brighten gradually with fixing ratio afterwards, is " bright state " under moment 4b.Afterwards, after predefined schedule time keeps " bright state ", make led light source 21 deepenings with certain proportion, finish image projection when under moment 4d, being made as " dark state " since moment 4c.
Figure 12 is the process flow diagram of the processing of the projector-equipped mobile telephone 100 under the expression present embodiment.In the processing shown in Figure 12,, carry out by CPU 103a as the program that the power supply of connecting projector-equipped mobile telephone 100 will start.In step S310, the image by the user selects playback object judges whether to have selected still be shown to which playback method of LCD monitor 102c by projector apparatus 102b projection.When judgement has been carried out the selection of playback object image, when reaching the selection of playback method, advanced to step S320.In step S320, judge whether the user has indicated the playback of the image of selecting, and has indicated playback time when judgement, advances to step S321.
In step S321, judge whether the playback method that the user selects is the projection of projector apparatus 102b. when the playback method of judging user's selection is not the projection of projector apparatus 102b, advance to step S323, the playback object image is shown to LCD monitor 102c, and it is relative with it to advance to following step S440., when the playback method of judging user's selection is the projection of projector apparatus 102b, advance to step S322. in step S322, control LED drive division 24, make from led light source 21 irradiates lights, and connect projector automatically. advance to step S330. afterwards
In step S330, need to judge whether crescendo, promptly judge whether to be redefined for crescendo by the user.When judging that the user is not set at crescendo, advance to step S340.In step S340, control LED drive division 24 makes the brightness of led light source 21 be " bright state ", and advances to step S350.In step S350, send the view data of playback object and project image onto screen to liquid crystal drive portion 25.Advance to following step S390 afterwards.
Relative with it, when judging that the user is set at crescendo, advance to step S360.In step S360, control LED drive division 24 makes the brightness of led light source 21 be " dark state ".Advance to step S370 afterwards, send the view data of playback object and project image onto on the screen, advance to step S380 to liquid crystal drive portion 25.In step S380, till the brightness of led light source 21 was " bright state ", control LED drive division 24 made it increase dutycycle with fixing ratio, and advances to step S390.
In step S390, judge whether the projection time under " bright state " has passed through the predefined schedule time.When judged projection effluxion under " bright state " predefined schedule time, advance to step S400.In step S400, need to judge whether diminuendo, judging promptly whether the user indicates carries out diminuendo.When judging that the user is not set at diminuendo, advance to following step S420.
Relative with it, when judging that the user is set at diminuendo, advance to step S410.In step S410, till the brightness of led light source 21 became " dark state ", control LED drive division 24 made it reduce dutycycle with fixed proportion, and advances to step S420.In step S420, stop of the transmission of the view data of playback object, and finish the projection of image liquid crystal drive portion 25.Advance to step S430 afterwards.In step S430, when the user has selected many images as the playback object image, judge whether to exist next playback object image.When there is next playback object image in judgement, turn back to step S330, next image is carried out above-mentioned processing.
On the other hand, when judgement does not have next playback object image, advance to step S431.In step S431, control LED drive division 24 is to stop the rayed from led light source 21, the automatic cutout projector.Advance to step S440 afterwards.In step S440, judge that whether the user is other patterns beyond the image replaying with the mode altering of projector-equipped mobile telephone 100, turn back to step S310 when judging when not changing, repeat above-mentioned processing.Relative with it, when judging that the mode altering of user with projector-equipped mobile telephone 100 is other patterns beyond the image replaying, end process.
According to the present embodiment of above explanation, can obtain following action effect.
(1) during image projection by the brightness of change led light source 21 irradiates lights, make image crescendo, diminuendo.So, can reduce cpu load for need not in order to make image crescendo, the required special processing of diminuendo.
(2) LED drive division 24 drives driving LED light source 21 by PWM, changes dutycycle continuously, thus the luminosity of change led light source 21.So, can change the brightness of image under crescendo and the diminuendo continuously, make the observer not think uncomfortable, can add visual effect.
(3) whether carry out crescendo and diminuendo during image projection, can from " carrying out the crescendo diminuendo simultaneously ", " only carrying out one of them ", " not carrying out any one ", not select.So, can apply the required visual effect ground projected image of user.
(4) can show many images at interval continuously with preset time, can make crescendo on one side of each image and/or diminuendo projection on one side.So, carry out projection while can carry out slideshow, each image in the time of further can respectively carrying out slideshow adds the visual effect of crescendo and/or diminuendo.
(5) by user's indicating image playback time, control LED drive division 24 with from led light source 21 irradiates lights, and is connected projector automatically.So, the user need not to connect separately projector, can improve convenience.
(6) when image replaying finishes, control LED drive division 24 is to stop from led light source 21 irradiates lights, automatic cutout projector. and so, the user need not to disconnect separately projector, can improve convenience.
(7) can carry out crescendo and diminuendo during image projection, therefore can suppress from the amount of the light of led light source 21 irradiations.So, the amount of battery consumption of projector-equipped mobile telephone 100 can be suppressed, continuous service time can be prolonged.
(variation)
In addition, the projector-equipped mobile telephone of above-mentioned embodiment can be carried out following distortion.
(1) in the above-described embodiment, the projector-equipped mobile telephone of structure shown in Figure 2 has been described, but has been not limited thereto, further applicable to all mobile phones that carried sub-liquid crystal, gps antenna, infrared communication portion etc.
(2) in the above-described embodiment, the example of LED drive division 24 by the driving power of PWM drive controlling led light source 21 has been described.But be not limited thereto, LED drive division 24 also can be controlled the driving power of led light source 21 by other modes.
(3) in the above-described embodiment, carrying the various examples that are treated to of carrying out in the projector-equipped mobile telephone of mobile phone with the projector apparatus 102b with projected image is illustrated.But be not limited thereto, also applicable to the personal digital assistant device of the subsidiary projector such as PDA that carried projector apparatus, general placed type projector apparatus.
(4) in the above-described embodiment, be illustrated as example to use White LED as the light source of projector apparatus 102b, but be not limited thereto, for example also can use other light sources such as Halogen lamp LED, organic EL.
(5) in the above-described embodiment, as shown in figure 11, change the brightness of led light source 21, make crescendo of playback object image and diminuendo.But be not limited thereto, for example also can change the brightness of led light source 21 as shown in figure 13.That is, when showing an image, make the brightness of image periodically-varied, can alternatively change " bright state " and " dark state ".
(6) in the above-described embodiment, " dark state " is that 20% state is that example is illustrated with dutycycle, but also other ratios, the state that perhaps will extinguish led light source 21 fully is as " dark state ".
(the 4th embodiment)
In the first embodiment, according to the kind of projection objects image the luminosity of led light source 21 is set at height mode or low mode is that example is illustrated.In the 4th embodiment, illustrate that the luminosity with led light source 21 temporarily is set at low mode (being called general modfel), be the example of height mode (bright mode) according to user's operating and setting.When the user indicates height mode, carry out the heat correspondence the same with first embodiment.And Fig. 1 and Fig. 2 of illustrating in the outside drawing of projector-equipped mobile telephone and block diagram and first embodiment are identical, therefore omit its explanation.
Figure 14 is the process flow diagram of the processing of the projector-equipped mobile telephone 100 under expression the 4th embodiment.In the processing shown in Figure 14,, carry out by CPU 103a as the program that the power supply of connecting projector-equipped mobile telephone 100 will start.And, for first embodiment in the identical step of contents processing of processing shown in Figure 7, be marked with identical step numbers.
In step S10, judge whether the user has indicated the beginning image projection.When judging that the user has indicated the beginning image projection, advance to step S20, judge whether the user has selected the image of projection objects.When judge using the projection objects image, advance to step S21, disconnect the backlight etc. of LCD monitor 102c, the demonstration of fragmentary picture on LCD monitor 102c.Advance to step S310 afterwards.
In step S310, control LED drive division 24 temporarily is set at low mode with the luminosity of led light source 21, and advances to step S320.In step S320, in order to relax the situation that luminosity because of led light source 21 becomes the image deepening of the projection that low mode causes, the dynamic image data of projection objects is carried out LUT proofread and correct, and advance to step S330.
In step S330, send the view data of projection objects to liquid crystal drive portion 25, project image onto screen. advance to step 340 afterwards, judge whether the user has operated height mode key (bright mode key). the bright mode key is distributed on any one key of input media 130f. the user continue to press the height mode key during, be indicated as height mode, when decontroling the height mode key, turn back to low mode. in step S340, when judging that the user is just operating the height mode key (when pressing), advance to step S350, advance to step S430. when not operating when judging
In step S350, control LED drive division 24 makes the dutycycle of led light source 21 rise to height mode gradually, and the LUT that changes simultaneously view data with the rising of dutycycle proofreaies and correct.And, when turning back to height mode, stop LUT and proofread and correct.Advance to step S360 afterwards.In step S360, the image data transmission of projection objects to liquid crystal drive portion 25, is projected image onto screen.Advance to step S370 afterwards, judge according to the output of temperature sensor 27 whether near the temperature that is provided with the position of led light source 21 has reached predefined ceiling temperature.When judging near the position temperature is set has reached ceiling temperature of led light source 21, advance to step S380.
In step S380, control LED drive division 24 makes the dutycycle of led light source 21 drop to above-mentioned low mode gradually, along with the decline of dutycycle is carried out proofreading and correct with the LUT of the degree correspondence of its decline to view data.Afterwards, advance to step S390, judge according to the output of temperature sensor 27 whether near the temperature that is provided with the position of led light source 21 drops to predefined lower limit temperature.When judging near the position temperature is set drops to lower limit temperature of led light source 21, advance to step S400.
In step S400, control LED drive division 24 makes the dutycycle of led light source 21 rise to height mode gradually, and the LUT that changes view data when dutycycle is risen proofreaies and correct.And, when turning back to height mode, stop LUT and proofread and correct.Advance to step S410 afterwards.
In step S410, judge whether the user has operated the height mode key.That is, judge whether the user leaves the indication of the height mode key and the height mode that is through with.When judging that the user is through with the indication of height mode, advance to step S420, turn back to step S340 re-treatment when judging when not finishing.
In step S420, control LED drive division 24 makes the dutycycle of led light source 21 drop to above-mentioned low mode gradually, along with the decline of dutycycle is carried out proofreading and correct with the LUT of its decline degree correspondence to view data.Advance to step S430 afterwards.
In step S430, judging whether the user indicates finishes the beam images projection, when judging that indication finishes, turns back to step S430.Relative with it, when end has been indicated in judgement, advance to step S220.
In step S220, control LED drive division 24 finishes the rayed from led light source 21, disconnects projector.Advance to step S230 afterwards, receive the backlight etc. of LCD monitor 102c, the image that receives LCD monitor 102c shows, and advances to step S240.In step S240, judge whether the user has disconnected the power supply of projector-equipped mobile telephone 100, when not disconnecting, turn back to step S10 and repeat above-mentioned processing.Relative with it, when judging that the user has disconnected the power supply of projector-equipped mobile telephone 100, end process.
The 4th embodiment according to above explanation can obtain following action effect.
(1) luminosity with led light source 21 is set at low mode (being called general modfel) usually, is height mode (being called bright mode) according to user's operating and setting.So, can not cause the temperature of led light source 21 to rise generally speaking, can continuous bright lamp when guaranteeing basic brightness.And,, can temporarily carry out the demonstration of high brightness, high-contrast according to user's needs.This can realize carrying out in the short time demand of high-brightness projection in hand-held projector.
(2) when replacing height mode, the same with first embodiment, near the judgement led light source 21 temperature information, according to the temperature information of judging, the brightness of the light of change led light source 21 irradiations. so, can decide the brightness of the light of led light source 21 irradiations according near the temperature information the led light source 21, and carry out the heat correspondence. when user's long-time continuous is pressed the height mode key, also can prevent the problem that temperature rises conscientiously.
(3) and above-mentioned first, second, in the 4th embodiment, when height mode is replaced low mode, and when low mode is replaced height mode, shown in the 3rd embodiment, can have the visual effect ground that makes image crescendo, diminuendo and move.So, the viewer is not felt well, and can suppress the heating of light source and suppress power consumption.
In the above-described 3rd embodiment, with for the visual effect that obtains to make image crescendo, diminuendo when the image projection change be that example is illustrated from the brightness of the light of led light source 21 irradiations.The brightness of the light of led light source 21 irradiation is changed as shown in Figure 15, also can realize the visual effect different with diminuendo, the diminuendo of image.Figure 15 is the figure of implementation method of the variation of expression visual effect.
Figure 15 (a) expression makes the LED flicker and changes the example in its cycle.Cycle also can change corresponding to the music from mobile phone output.The example at Figure 15 (b) expression change one by one bright lamp of a plurality of LED place.The example in Figure 15 (c) expression the change gradually bright lamp number of LED, bright lamp place.The example of the combination that the bright lamp of the LED that Figure 15 (d) expression change is red, blue, green is turned off the light.So, only make the particular color deepening, can change white balance.And, carry out glittering demonstration while can change color.
Various embodiments and variation more than have been described, the present invention is not subjected to the qualification of these contents.Other modes in the technological thought scope of the present invention are also contained in the scope of the present invention.
The disclosed content quotation of following basis for priority application is in this instructions:
Japan's patented claim 2004 No. 341522 (application on November 26th, 2004),
Japan's patented claim 2004 No. 341523 (application on November 26th, 2004).
Claims (19)
1. projector apparatus has:
Form the image forming part of image;
Irradiation portion, irradiation is used for the image projection that will be formed by the above-mentioned image forming part light to the projecting plane;
Changing unit, change is from the brightness of the light of above-mentioned irradiation portion irradiation; With
The temperature information judging part is judged near the temperature information of above-mentioned irradiation portion,
Above-mentioned changing unit, according to the temperature information by said temperature information judgement section judges, change is from the brightness of the light of above-mentioned irradiation portion irradiation,
Said temperature information judging part has:
Historical storage portion, storage is from light-struck history of above-mentioned irradiation portion;
Prediction section according to stored historical in the above-mentioned historical storage portion, is predicted near the temperature the above-mentioned irradiation portion; With
Comparing section relatively by the temperature and the above-mentioned predetermined value of above-mentioned prediction section prediction, is judged said temperature information.
2. projector apparatus according to claim 1, wherein,
Above-mentioned changing unit, according to the temperature information by said temperature information judgement section judges, change is from the brightness of the light of above-mentioned irradiation portion irradiation, so that near the temperature the above-mentioned irradiation portion keeps the following temperature of predetermined value.
3. projector apparatus according to claim 1 and 2, wherein,
Also have the monitor that shows above-mentioned image,
When having changed brightness from the light of above-mentioned irradiation portion irradiation, above-mentioned image is shown on the above-mentioned monitor by above-mentioned changing unit.
4. projector apparatus according to claim 1 and 2, wherein,
Also have warning portion, when the brightness of having changed by above-mentioned changing unit from the light of above-mentioned irradiation portion irradiation, export warning to the user.
5. projector apparatus according to claim 1 and 2, wherein,
Also have correction unit,, proofread and correct the brightness of the image that forms by above-mentioned image forming part according to temperature information by said temperature information judgement section judges.
6. projector apparatus according to claim 5, wherein,
Also have control part, the above-mentioned changing unit of combination control to from the change of the brightness of the light of above-mentioned irradiation portion irradiation, and above-mentioned correction unit to the correction of the brightness of the image that forms by above-mentioned image forming part,
Above-mentioned control part is according to image kind modification control method.
7. projector apparatus according to claim 6, wherein,
Above-mentioned image kind is that rest image, dynamic image, TV are play any one that receives picture, character image.
8. projector apparatus has:
Form the image forming part of image;
Irradiation portion, irradiation is used for the image projection that will be formed by the above-mentioned image forming part light to the projecting plane;
Changing unit, change is from the brightness of the light of above-mentioned irradiation portion irradiation; With
The temperature information judging part is judged near the temperature information of above-mentioned irradiation portion,
Above-mentioned changing unit, according to the temperature information by said temperature information judgement section judges, change is from the brightness of the light of above-mentioned irradiation portion irradiation, and makes the variation difference of brightness of the light of irradiation according to the kind of above-mentioned image.
9. projector apparatus according to claim 8, wherein,
Above-mentioned image kind is under the situation of rest image or character image, said temperature information judging part judges that according to said temperature information near the above-mentioned irradiation portion temperature is that predetermined value is when above, above-mentioned changing unit changes, so that diminish from the brightness of the light of above-mentioned irradiation portion irradiation
When above-mentioned image kind was dynamic image, regardless of said temperature information judgment result, above-mentioned changing unit all changed, so that diminish from the brightness of the light of above-mentioned irradiation portion irradiation.
10. according to Claim 8 or 9 described projector apparatus, wherein,
When above-mentioned changing unit is carried out the change of brightness of light of above-mentioned irradiation, above-mentioned image forming part, to the opposite direction of brightness change of the light of above-mentioned irradiation, the brightness of changing above-mentioned image.
11. projector apparatus according to claim 10, wherein,
Make under the situation that the light of above-mentioned irradiation changes lowlyer in above-mentioned changing unit, above-mentioned image forming part, when the data number of the bright side of above-mentioned image distributes less than predetermined value, change the decline of the light of above-mentioned irradiation by linear coefficient, so that the brightness of above-mentioned image brightens, at the DATA DISTRIBUTION number of the bright side of above-mentioned image is predetermined value when above, and the nonlinear factor of the bright side by suppressing above-mentioned image changes, so that the brightness of above-mentioned image brightens.
12. projector apparatus according to claim 1, wherein,
Above-mentioned changing unit, carry out that the change of following light handles at least any one: when above-mentioned image begins to show, change, so that, brighten gradually afterwards from the brightness deepening of the light of above-mentioned irradiation portion irradiation; And, when above-mentioned image finishes to show, change, so that from the brightness deepening gradually of the light of above-mentioned irradiation portion irradiation.
13. projector apparatus according to claim 12, wherein,
Above-mentioned irradiation portion comprises light source,
Above-mentioned changing unit is controlled the driving power of above-mentioned light source, and change is from the brightness of the light of above-mentioned irradiation portion irradiation.
14. according to claim 12 or 13 described projector apparatus, wherein,
Above-mentioned irradiation portion has solid-state light emitting element.
15. according to claim 12 or 13 described projector apparatus, wherein,
Above-mentioned image forming part forms many images continuously with predetermined time interval,
Above-mentioned changing unit to each image carry out that the change of following light handles at least any one: when each image begins to show, change, so that, brighten gradually afterwards from the brightness deepening of the light of above-mentioned irradiation portion irradiation; Show at each image and to change when finishing, so that from the brightness deepening gradually of the light of above-mentioned irradiation portion irradiation.
16. according to claim 12 or 13 described projector apparatus, wherein,
Above-mentioned image forming part, the image replaying indication according to the user begins the formation of image automatically,
Above-mentioned irradiation portion, the image replaying indication according to the user begins the irradiation of light automatically.
17. projector apparatus according to claim 16, wherein,
Above-mentioned user's image replaying indication is the indication that begins of slide projector projection.
18. according to claim 12 or 13 or 17 described projector apparatus, wherein,
Above-mentioned image forming part finishes the formation of image automatically when image replaying finishes,
Above-mentioned irradiation portion finishes the irradiation of light automatically when image replaying finishes.
19. according to claim 12 or 13 or 17 described projector apparatus, wherein,
Above-mentioned irradiation portion is driven by PWM,
Above-mentioned changing unit drives the dutycycle of the signal of above-mentioned irradiation portion by continuous change, changes continuously from the brightness of the light of above-mentioned irradiation portion irradiation.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP341522/2004 | 2004-11-26 | ||
| JP2004341522A JP4158761B2 (en) | 2004-11-26 | 2004-11-26 | Projector device |
| JP2004341523A JP4270114B2 (en) | 2004-11-26 | 2004-11-26 | Projector device |
| JP341523/2004 | 2004-11-26 | ||
| PCT/JP2005/021661 WO2006057328A1 (en) | 2004-11-26 | 2005-11-25 | Projector device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101006392A CN101006392A (en) | 2007-07-25 |
| CN101006392B true CN101006392B (en) | 2010-05-05 |
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ID=36632438
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800278957A Expired - Fee Related CN101006392B (en) | 2004-11-26 | 2005-11-25 | Projector device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4158761B2 (en) |
| CN (1) | CN101006392B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5196100B2 (en) * | 2006-11-07 | 2013-05-15 | セイコーエプソン株式会社 | Projector, program, information storage medium, and projection method |
| JP4952333B2 (en) * | 2007-03-30 | 2012-06-13 | 株式会社ニコン | Camera with projector |
| JP2010091997A (en) * | 2008-09-10 | 2010-04-22 | Nikon Corp | Electronic equipment |
| JP5375038B2 (en) * | 2008-11-07 | 2013-12-25 | 株式会社ニコン | Electronics |
| JP2010191402A (en) * | 2009-01-26 | 2010-09-02 | Toshiba Corp | Projector, image display method, and mobile telephone |
| JP5412996B2 (en) * | 2009-06-30 | 2014-02-12 | カシオ計算機株式会社 | Light source device, projection device, and projection method |
| JP2012063436A (en) * | 2010-09-14 | 2012-03-29 | Casio Comput Co Ltd | Projection device, projection method and program |
| JP6086282B2 (en) | 2012-07-05 | 2017-03-01 | 株式会社リコー | Image projection device |
| JP6013249B2 (en) * | 2013-03-27 | 2016-10-25 | シャープ株式会社 | Liquid crystal display |
| JP6366235B2 (en) | 2013-07-26 | 2018-08-01 | キヤノン株式会社 | Projection-type image display device |
| US9551916B2 (en) * | 2014-09-25 | 2017-01-24 | Intel Corporation | Integrated and adjustable image projection with auto-image correction in electronic devices using an in-facing or world-facing image projector |
| JP2019191397A (en) * | 2018-04-26 | 2019-10-31 | シャープ株式会社 | Liquid crystal display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000194070A (en) * | 1998-12-28 | 2000-07-14 | Fujitsu Ltd | Projection type display device |
| JP2001021992A (en) * | 1999-07-09 | 2001-01-26 | C Media:Kk | Portable terminal, portable terminal system and portable telephone |
| JP2001024926A (en) * | 1999-07-09 | 2001-01-26 | C Media:Kk | Portable camera and pictorial communication method |
| JP3261284B2 (en) * | 1995-07-26 | 2002-02-25 | ナショナル住宅産業株式会社 | Opening frame mounting structure |
| JP2002258406A (en) * | 2001-03-06 | 2002-09-11 | Matsushita Electric Ind Co Ltd | Projection type display device |
| JP2004061779A (en) * | 2002-07-26 | 2004-02-26 | Yoshio Monjo | Projector |
| JP2004226631A (en) * | 2003-01-22 | 2004-08-12 | Seiko Epson Corp | Projector and optical device |
| JP2004302254A (en) * | 2003-03-31 | 2004-10-28 | Seiko Epson Corp | Projection type display device |
-
2004
- 2004-11-26 JP JP2004341522A patent/JP4158761B2/en not_active Expired - Fee Related
-
2005
- 2005-11-25 CN CN2005800278957A patent/CN101006392B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3261284B2 (en) * | 1995-07-26 | 2002-02-25 | ナショナル住宅産業株式会社 | Opening frame mounting structure |
| JP2000194070A (en) * | 1998-12-28 | 2000-07-14 | Fujitsu Ltd | Projection type display device |
| JP2001021992A (en) * | 1999-07-09 | 2001-01-26 | C Media:Kk | Portable terminal, portable terminal system and portable telephone |
| JP2001024926A (en) * | 1999-07-09 | 2001-01-26 | C Media:Kk | Portable camera and pictorial communication method |
| JP2002258406A (en) * | 2001-03-06 | 2002-09-11 | Matsushita Electric Ind Co Ltd | Projection type display device |
| JP2004061779A (en) * | 2002-07-26 | 2004-02-26 | Yoshio Monjo | Projector |
| JP2004226631A (en) * | 2003-01-22 | 2004-08-12 | Seiko Epson Corp | Projector and optical device |
| JP2004302254A (en) * | 2003-03-31 | 2004-10-28 | Seiko Epson Corp | Projection type display device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4158761B2 (en) | 2008-10-01 |
| CN101006392A (en) | 2007-07-25 |
| JP2006154016A (en) | 2006-06-15 |
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