CN100542237C - Can by external power supply supply electric energy or voluntarily the power supply the projection display - Google Patents
Can by external power supply supply electric energy or voluntarily the power supply the projection display Download PDFInfo
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- CN100542237C CN100542237C CNB2005101201193A CN200510120119A CN100542237C CN 100542237 C CN100542237 C CN 100542237C CN B2005101201193 A CNB2005101201193 A CN B2005101201193A CN 200510120119 A CN200510120119 A CN 200510120119A CN 100542237 C CN100542237 C CN 100542237C
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- electrical energy
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- projection display
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Abstract
The projection display comprises a housing, a display floater, an attaching plug, a light source, a heat abstractor, an electric energy detection device, an and electrical energy storage device that is used for storage of electrical energy.This attaching plug is to be used for being electrically connected on an external power supply, to receive the electric energy that this external power supply is supplied.This light source is to be electrically connected on this attaching plug, be used for when receiving the received electric energy of this attaching plug, with light emission to this display floater.This heat abstractor is arranged in this housing, is used for when receiving electric energy the heat energy that this light source produced being disposed to outside this housing.This electric energy detection device is to be electrically connected on this heat abstractor, this electrical energy storage device, and this attaching plug, is used for current potential according to this attaching plug, optionally this heat abstractor is electrically connected on this attaching plug or is electrically connected on this electrical energy storage device.
Description
Technical field
The present invention relates to a kind of projection display, particularly a kind of can by external power supply supply electric energy or voluntarily the power supply the projection display.
Background technology
In the projection display, the life-span that how to prolong bulb is considered to be one of technology of most critical always, and influences in bulb life length all multifactor, and most important one is the good whether corrupt of heat abstractor.
Because a bulb is in luminous; can be accompanied by generation heat energy;; this bulb is stopping luminous moment; the heat energy that is produced before it; can't disappear outright; so, in the existing projection display, be used for getting rid of the heat abstractor of heat energy; stop luminous moment at this bulb; can't decommission at once, on the contrary, this heat abstractor must continue to operate a period of time again; the heat energy that is produced to get rid of this bulb as much as possible, and and then protect this bulb to avoid the infringement of this heat energy.
For instance, people such as Gilmore have promptly disclosed a kind of management process of controlling this heat abstractor running in 2004 in the United States Patent (USP) that is proposed No. 6704061 " Temporary Simulated Off State in a Restart of a Video Display ", this management process mainly is to utilize two stage administrative mechanisms, controls the running of this heat abstractor.In specific words, when the user shuts down button by next, one display can carry out a false shutdown phenomenon immediately earlier, just, this display can be in very first time during section (this very first time section is to originate in the moment that this shutdown button is pressed), the demonstration of FEFO image is pressed already so that this user senses this shutdown button, but this bulb is still to be in luminous state fully in this very first time section; If in this very first time section, there is other button to be pressed again, meaning being pressed of this shutdown button and be because of due to user's the false touch, as a result, under the situation that this bulb need not be restarted, this display recovers the demonstration (more than be a phase I) of image; On the contrary, if in this very first time section, be pressed without any other button again, meaning this user and will shut down really, as a result, this management process proceeds to a second stage.In this second stage, this management process can be ignored being pressed of any button, and just, this management process can abandon any push button signalling that is pressed and produces because of button; In this second stage, this bulb can be closed at leisure, and correspondingly, this heat abstractor can operate constantly, till this second stage finishes fully.
Though above-mentioned management process, after this shutdown button is pressed, can wait until that this second stage finishes fully after, just controlling this heat abstractor decommissions, the heat energy that is produced to get rid of this bulb as much as possible, however this management process but is unable to cope with precipitate outage.That is to say that this heat abstractor is understood because of this precipitate outage, and must stop to get rid of the running of heat energy, thus, this bulb just very likely is subjected to the infringement of this heat energy that is not excluded fully as yet.
Summary of the invention
Therefore main purpose of the present invention is to provide a kind of and can supplies the electric energy or the projection display of power supply voluntarily by external power supply, to solve the shortcoming of prior art.
The projection display of the present invention is to comprise a housing, a display floater, an attaching plug, a light source, a heat abstractor, an electrical energy storage device and an electric energy detection device.This display floater is that setting is on this housing.This attaching plug is to be arranged at outside this housing, is used for being electrically connected on an external power supply, to receive the electric energy that this external power supply is supplied.This light source is arranged in this housing and is electrically connected on this attaching plug, be used for when receiving the received electric energy of this attaching plug, with light emission to this display floater.This heat abstractor is arranged in this housing, is used for when receiving electric energy the heat energy that this light source produced being disposed to outside this housing.This electrical energy storage device is to be used for storage of electrical energy.This electric energy detection device is to be electrically connected on this heat abstractor, this electrical energy storage device, and this attaching plug, is used for current potential according to this attaching plug, optionally this heat abstractor is electrically connected on this attaching plug or is electrically connected on this electrical energy storage device.
Description of drawings
Fig. 1 is the schematic diagram of a projection display and coupled external power supply in the first embodiment of the present invention.
Fig. 2 is the functional block diagram of the shown projection display of Fig. 1.
Fig. 3 is the flow chart of the operation procedure of the shown projection display of Fig. 1.
Fig. 4 is the functional block diagram of a projection display drive unit in the second embodiment of the present invention.
Fig. 5 is the functional block diagram of a projection display drive unit in the third embodiment of the present invention.
The reference numeral explanation
10 projection displays, 12 housings
14 display floaters
18 attaching plugs, 20 light sources
22 heat abstractors, 24 electrical energy storage devices
26 electric energy detection devices, 28 heat extraction holes
30 electric potential detectors, 32 charge switchs
34 light source switchs, 52 solar panels
54 temperature sensors, 56 energy storage units
58 connectivity ports, 60 discharge switches
72 control circuits, 19 external power supplys
50,70 drive device for display
Embodiment
See also Fig. 1 and Fig. 2, Fig. 1 is the schematic diagram of a projection display 10 and coupled external power supply 19 in the first embodiment of the present invention, and Fig. 2 is the functional block diagram of the projection display 10.The projection display 10 comprises a housing 12, a display floater 14, an attaching plug 18, a light source 20, a heat abstractor 22, an electrical energy storage device 24, an electric energy detection device 26, an electric potential detector 30, a charge switch 32 and a light source switch 34.Housing 12 is provided with heat extraction hole 28.
Display floater 14 is arranged on the housing 12.Attaching plug 18 is arranged on outside the housing 12, is used for being electrically connected on external power supply 19, to receive the electric energy that external power supply 19 is supplied.Light source switch 34 is to be electrically connected on attaching plug 18, is used for after receiving the starting-up signal that a remote controller sent, and the electric energy that attaching plug 18 is received is sent to light source 20, and this remote controller can send an off signal in addition.Light source 20 is arranged in the housing 12, and is electrically connected on light source switch 34, be used for when receiving the electric energy that light source switch 34 transmitted, with light emission to display floater 14.Heat abstractor 22 is arranged in the housing 12, is used for when receiving electric energy, and the heat energy that light source 20 is produced is disposed to outside the housing 12 via heat extraction hole 28.Electrical energy storage device 24 is to be used for storage of electrical energy.Electric energy detection device 26 is to be electrically connected on heat abstractor 22, electrical energy storage device 24, and attaching plug 18, be used for current potential (just whether receiving the electric energy that external power supply 19 is supplied) according to attaching plug 18, optionally heat abstractor 22 be electrically connected on attaching plug 18 or be electrically connected on electrical energy storage device 24 according to attaching plug 18.For instance, have when receiving the electric energy that external power supply 19 supplied when detecting attaching plug 18, electric energy detection device 26 is electrically connected on attaching plug 18 with heat abstractor 22, so that heat abstractor 22 relies on attaching plug 18 received electric energy and operates; Otherwise when detecting attaching plug 18 and do not receive the electric energy that external power supply 19 supplied, electric energy detection device 26 is electrically connected on electrical energy storage device 24 with heat abstractor 22, so that heat abstractor 22 relies in the electrical energy storage devices 24 institute's electric energy stored and operates.Electric potential detector 30 is to be electrically connected on electrical energy storage device 24, is used for detecting the current potential of electrical energy storage device 24.Charge switch 32 is to be controlled by electric potential detector 30, the current potential that is used at electrical energy storage device 24 is when being lower than a predetermined potential, electrical energy storage device 24 is electrically connected on attaching plug 18, that is to say, at the same time, attaching plug 18 received electric energy can be stored in the electrical energy storage device 24, till the current potential of electrical energy storage device 24 no longer is lower than this predetermined potential.
In the first embodiment of the present invention, light source 20 can be a bulb, and heat abstractor 22 can be a fan, and electric energy detection device 26 can be a relay, and electrical energy storage device 24 can comprise an electric capacity or a rechargeable battery.
See also Fig. 3, Fig. 3 is the flow chart of the operation procedure 100 of the projection display 10.Operation procedure 100 comprises the following step:
Step 102: beginning;
Step 104: is energy state normal? if, carry out step 106, otherwise, carry out step 190;
(electric energy detection device 26 can judge whether the energy state of the projection display 10 is normal by detecting the mode whether attaching plug 18 receives the electric energy that this external power supply supplies.In specific words, if attaching plug 18 has when receiving the electric energy that this external power supply supplies, the energy state of the projection display 10 be judged as normal)
Is step 106: the current potential of electrical energy storage device 24 higher than this predetermined potential? if, carry out step 110, otherwise, carry out step 108;
(whether whether the current potential of electric potential detector 30 decidable electrical energy storage devices 24 is higher than this predetermined potential, will charge to electrical energy storage device 24 to judge)
Step 108:, carry out step 110 to electrical energy storage device 24 chargings;
(operation procedure 100 carries out so far, and mean electrical energy storage device 24 and do not storing enough electric energy, therefore, but electric potential detector 30 conducting charge switchs 32, so that the electric energy that attaching plug 18 is received can be stored in the electrical energy storage device 24)
Step 110: receive this starting-up signal? if, carry out step 112, otherwise, carry out step 102;
Step 112: conducting light source switch 34, carry out step 114;
(thus, light source 20 is just received the received electric energy of attaching plug 18, and and then with this light emission to display floater 14)
Step 114: carry out the boot program of the projection display 10, carry out step 116;
Step 116: is energy state normal? if, carry out step 118, otherwise, carry out step 182;
(operation procedure 100 must check every now and then whether the energy state of the projection display 10 is normal)
Step 118: receive this off signal? if, carry out step 120, otherwise, carry out step 116;
(energy state at the projection display 10 is under the normal prerequisite, and operation procedure 100 can detect whether receive the off signal that this remote controller sends constantly)
Step 120: stop display image, carry out step 122;
(projection display 10 stops the demonstration of image when receiving this off signal)
Is step 122: the current potential of electrical energy storage device 24 higher than this predetermined potential? if, carry out step 126, otherwise, carry out step 124;
(electric potential detector 30 is before the projection display 10 real shutdown, whether the current potential that can judge electrical energy storage device 24 again is higher than this predetermined potential, to guarantee institute's electric energy stored in the electrical energy storage device 24, be enough to supply the running of heat abstractor 22, it is outer that just the heat energy that light source 20 is produced is disposed to housing 12)
Step 124:, carry out step 116 to electrical energy storage device 24 chargings (being similar to step 108);
Step 126: have any button to be pressed? if, carry out step 112, otherwise, carry out step 128;
(step 126 is to be similar to prior art, and is not superfluous now)
Step 128: carry out the shutdown programm of the projection display 10, carry out step 182;
Step 182: stop display image and not conducting light source switch 34 (because at this moment, the energy state of the projection display 10 is undesired);
Step 184:, carry out step 190 with institute's electric energy stored supply heat abstractor 22 in the electrical energy storage device 24; And
(electric energy detection device 26 is electrically connected to electrical energy storage device 24 with heat abstractor 22; so that heat abstractor 22 the energy state of the projection display 10 be undesired (for instance; sudden power) under the situation, still can operate constantly, and and then protect light source 20 to avoid the infringement of heat energy)
Step 190: finish.
See also Fig. 4, Fig. 4 is the functional block diagram of a projection display drive unit 50 in the second embodiment of the present invention.Except housing 12, display floater 14, attaching plug 18, light source 20, heat abstractor 22, electrical energy storage device 24, electric energy detection device 26, electric potential detector 30, charge switch 32, light source switch 34 and heat extraction hole 28, projection display drive unit 50 comprises a solar panel (solar panel) 52 and one temperature sensor 54 in addition, and this two all to be arranged on light source 20 other.Solar panel 52 is to be electrically connected on electrical energy storage device 24, be used for converting the light that light source 20 is launched to electric energy, and be stored in the electrical energy storage device 24, and temperature sensor 54 is to be used for the temperature of sensing light source 20.
In projection display drive unit 50, correspondingly, electrical energy storage device 24 is to comprise a connectivity port 58 and the discharge switch 60 that an energy storage unit 56, that is used for storage of electrical energy is electrically connected on electric energy detection device 26, discharge switch 60 is to be controlled by temperature sensor 54, be used for when the temperature of light source 20 is higher than a predetermined temperature, energy storage unit 56 being electrically connected on connectivity port 58.Thus, when the temperature of light source 20 was not too high as yet, when just the heat energy that is produced when light source 20 can cause any infringement to light source 20 hardly, the electric energy in the electrical energy storage device 24 can not be supplied to heat abstractor 22, correspondingly, heat abstractor 22 just can not consume meaningless electric energy yet; Otherwise, when temperature sensor 54 senses the temperature of light source 20 when too high already (surpassing this predetermined temperature), discharge switch 60 is conductings, and the electric energy in the electrical energy storage device 24 just can be supplied to heat abstractor 22, so that heat abstractor 22 is able to the heat energy that light source 20 is produced is disposed to outside the housing 12.
See also Fig. 5, Fig. 5 is the functional block diagram of a projection display drive unit 70 in the third embodiment of the present invention.Except housing 12, display floater 14, attaching plug 18, light source 20, heat abstractor 22, electrical energy storage device 24, electric energy detection device 26, electric potential detector 30, charge switch 32, light source switch 34, and outside the heat extraction hole 28, and, electrical energy storage device 24 is to comprise energy storage unit 56, connectivity port 58, and discharge switch 60, projection display drive unit 70 comprises a control circuit 72 in addition, be electrically connected on electric energy detection device 26, be used for when electric energy detection device 26 is electrically connected on electrical energy storage device 24 with heat abstractor 22,60 conductings of control discharge switch reach a scheduled time length, in the equivalence, just energy storage unit 56 is electrically connected on connectivity port 58 and reaches a scheduled time length.
Compared to prior art, the projection display 10 of the present invention and projection display drive unit the 50, the 70th additionally comprise electrical energy storage device 24.Therefore; even if the projection display 10 and projection display drive unit 50,70 suffer from precipitate outage; heat abstractor 22 still can be by the mode of the electric energy in the consumed power storage device 24; the heat energy that light source 20 is produced; via heat extraction hole 28; be disposed to outside the housing 12, and and then protect light source 20 to avoid the infringement of this heat energy.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (12)
1. projection display comprises:
One housing;
One display floater is arranged on this housing, is used for display image;
One attaching plug is arranged on outside this housing, is used for being electrically connected on an external power supply, to receive the electric energy that this external power supply is supplied;
One light source is arranged in this housing, be used for when this projection display receives external power source, with light emission to this display floater;
One heat abstractor is arranged in this housing, is used for when receiving electric energy, and the heat energy that this light source produced is disposed to outside this housing;
One electrical energy storage device is used for storage of electrical energy; And
One electric energy detection device is electrically connected on this heat abstractor, this electrical energy storage device, and this attaching plug, is used for current potential according to this attaching plug, optionally this heat abstractor is electrically connected on this attaching plug or is electrically connected on this electrical energy storage device.
2. the projection display as claimed in claim 1, wherein, this electric energy detection device is a relay.
3. the projection display as claimed in claim 1, wherein, this electrical energy storage device comprises an electric capacity.
4. the projection display as claimed in claim 1, wherein, this electrical energy storage device comprises a rechargeable battery.
5. the projection display as claimed in claim 1, it comprises in addition:
One electric potential detector is electrically connected on this electrical energy storage device, is used for detecting the current potential of this electrical energy storage device; And
One charge switch is controlled by this electric potential detector, is used for when the current potential of this electrical energy storage device is lower than a predetermined potential this electrical energy storage device being electrically connected on this attaching plug.
6. the projection display as claimed in claim 1, it comprises in addition:
One solar panel, it is other and be electrically connected on this electrical energy storage device to be arranged on this light source, after being used for converting the light that this light source is launched to electric energy, is stored in this electrical energy storage device.
7. the projection display as claimed in claim 1, it comprises in addition:
One temperature sensor is arranged on by this light source, is used for the temperature of this light source of sensing;
This electrical energy storage device comprises:
One energy storage unit is used for storage of electrical energy;
One connectivity port is electrically connected on this electric energy detection device; And
One discharge switch is controlled by this temperature sensor, is used for when the temperature of this light source is higher than a predetermined temperature this energy storage unit being electrically connected on this connectivity port.
8. the projection display as claimed in claim 7, wherein, this energy storage unit comprises an electric capacity.
9. the projection display as claimed in claim 7, wherein, this energy storage unit comprises a rechargeable battery.
10. the projection display as claimed in claim 1, wherein, this electrical energy storage device comprises:
One energy storage unit is used for storage of electrical energy;
One connectivity port is electrically connected on this electric energy detection device; And
One discharge switch is used for optionally this energy storage unit being electrically connected on this connectivity port;
And this projection display comprises a control circuit in addition, be electrically connected on this electric energy detection device, be used for when this electric energy detection device is electrically connected on this electrical energy storage device with this heat abstractor, control this discharge switch and this energy storage unit is electrically connected on this connectivity port reaches a scheduled time length.
11. the projection display as claimed in claim 10, wherein, this energy storage unit comprises an electric capacity.
12. the projection display as claimed in claim 10, wherein, this energy storage unit comprises a rechargeable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101201193A CN100542237C (en) | 2005-11-04 | 2005-11-04 | Can by external power supply supply electric energy or voluntarily the power supply the projection display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101201193A CN100542237C (en) | 2005-11-04 | 2005-11-04 | Can by external power supply supply electric energy or voluntarily the power supply the projection display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1960459A CN1960459A (en) | 2007-05-09 |
| CN100542237C true CN100542237C (en) | 2009-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101201193A Expired - Fee Related CN100542237C (en) | 2005-11-04 | 2005-11-04 | Can by external power supply supply electric energy or voluntarily the power supply the projection display |
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| Country | Link |
|---|---|
| CN (1) | CN100542237C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103034025A (en) * | 2012-12-28 | 2013-04-10 | 王万龙 | Light-emitting diode (LED) protector with anti-theft device |
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- 2005-11-04 CN CNB2005101201193A patent/CN100542237C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1960459A (en) | 2007-05-09 |
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Owner name: CPT TECHNOLOGY (GROUP) CO., LTD. Free format text: FORMER OWNER: CHINA PROJECTION TUBE CO., LTD. Effective date: 20140505 |
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Free format text: CORRECT: ADDRESS; FROM: TAIWAN, CHINA TO: 350000 FUZHOU, FUJIAN PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140505 Address after: 350000, No. 1, building 6, building No. third, fourth, Confucian Road West, Mawei District, Fujian, Fuzhou Patentee after: CPT DISPLAY TECHNOLOGY (SHENZHEN)CO., LTD. Address before: Taipei City, Taiwan, China Patentee before: Chunghwa Picture Tubes Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20191104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |