WO2012140714A1 - Appareil d'affichage - Google Patents

Appareil d'affichage Download PDF

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Publication number
WO2012140714A1
WO2012140714A1 PCT/JP2011/058991 JP2011058991W WO2012140714A1 WO 2012140714 A1 WO2012140714 A1 WO 2012140714A1 JP 2011058991 W JP2011058991 W JP 2011058991W WO 2012140714 A1 WO2012140714 A1 WO 2012140714A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
housing
display panel
cooling air
air conditioning
Prior art date
Application number
PCT/JP2011/058991
Other languages
English (en)
Japanese (ja)
Inventor
健三 安田
Original Assignee
株式会社アシスト
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社アシスト filed Critical 株式会社アシスト
Priority to PCT/JP2011/058991 priority Critical patent/WO2012140714A1/fr
Priority to KR1020137026211A priority patent/KR101485767B1/ko
Priority to JP2013509677A priority patent/JP5721814B2/ja
Priority to CN201180069927.5A priority patent/CN103477383B/zh
Publication of WO2012140714A1 publication Critical patent/WO2012140714A1/fr

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
    • H05K7/2099—Liquid coolant with phase change
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
    • G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals

Definitions

  • the present invention relates to a display device, and more particularly to a display device having a housing and a display panel housed in the housing.
  • a housing is provided with a housing and a panel housed in the housing to display an image or a video, and at least a part of the housing is a visible portion formed of a transparent material such as glass, thereby providing a housing from the outside.
  • a display device capable of visually recognizing an image or an image displayed on a panel in the body.
  • a display device for example, when the panel is a liquid crystal panel, heat is generated inside the housing due to the environment outside the housing or the operation of the liquid crystal panel, and the temperature inside the housing is increased. Then, when the temperature inside the housing becomes high and the temperature of the display surface of the liquid crystal panel becomes about 65 ° C. or higher, a blackout phenomenon occurs in which the surface is blackened and an image or video is not displayed, or a transparent glass Condensation may occur on the inner surface of the visible portion formed of a material, and the display device may not function.
  • the housing In order to prevent the blackout phenomenon, it is conceivable to provide the housing with an air hole communicating the inside and the outside of the housing. By providing the air holes, it is considered that the air inside the casing that has been heated can be discharged to the outside of the casing, and the air temperature inside the casing can be lowered.
  • providing an air hole in the case may cause rain to penetrate inside when it is raining, and it is not preferable to provide the air hole in the case. Therefore, in consideration of the case where the display device is disposed outdoors, it is necessary to prevent the blackout phenomenon of the panel in a state where the housing is sealed.
  • Patent Document 1 the technology disclosed in Patent Document 1 includes a hollow stand, a case in which a panel for displaying an image or video is accommodated, and a computer for controlling an image or video signal displayed on the panel. And an air conditioner constituting a heat pump cycle.
  • the hollow stand is connected to the bottom of the case.
  • the computer is disposed in the housing, the evaporator constituting the air conditioner is connected to the opening of the bottom panel of the housing, and the compressor constituting the air conditioner is arranged on the bottom panel of the stand .
  • Patent Document 1 also discloses a structure in which a hollow stand is not provided and a structure in which a computer is provided outside a housing. Then, the air conditioner can keep the temperature in the housing at a predetermined temperature against changes in weather conditions.
  • Patent Document 1 cold air is jetted from the bottom of the case or from the back of the display panel displaying an image or video to keep the entire inside of the case at a predetermined temperature. Therefore, the upper side of the display panel is heated by the heat generated from the display panel, in particular, the heat generated from the display panel, and therefore the air conditioner needs to have a high capacity to prevent the temperature from rising at the top of the display panel. Therefore, there is a problem that the size of the air conditioner increases and the size of the display device increases.
  • the present invention relates to a display device capable of housing a display panel such as a liquid crystal panel in a housing and visually recognizing an image or a video displayed on the panel in the housing from outside.
  • An object of the present invention is to provide a display device that efficiently and reliably prevents the display panel blackout phenomenon caused by the increase in temperature due to direct sunlight and the increase in temperature due to heat generation from the display panel.
  • the present invention is formed on a case, a display panel housed in the case and displaying an image or a video, and a part of the case facing the display panel.
  • An air conditioner that connects a compressor, a condenser, an expansion valve, and an evaporator with a visual recognition unit formed of a transparent member that can visually recognize the inside of the housing and circulates a refrigerant to these devices to configure a heat pump cycle.
  • cooling air supply means for circulating cooling air cooled by the evaporator of the air conditioner between the viewing portion and the display panel and from above to below the display panel. It is characterized by having.
  • the display surface of the display panel is cooled by the cooling air by flowing the cooling air cooled by the evaporator between the viewing portion and the display panel from the upper side to the lower side,
  • the temperature of the display panel can be maintained at a predetermined temperature such as 30 to 35.degree.
  • the cooling air can be effectively brought into contact with the display panel by flowing the cooling air from the top to the bottom of the display panel, thereby cooling the display panel. It can be done effectively.
  • the air conditioner does not need to have a high cooling capacity. It can be made compact, and the enlargement of the display device can be prevented.
  • a heated air supply means is provided which circulates along the outer surface.
  • the cooling air flows in the space between the visible portion and the display panel so that the outer surface of the visible portion is lower than the ambient temperature outside the housing. Can be considered.
  • the outer surface of the visible portion becomes lower than the dew point temperature
  • dew condensation occurs on the outer surface of the visible portion, and the visibility of the panel via the visible portion is deteriorated. Therefore, even if the cooling air flows through the space and the inner surface of the visual recognition portion is cooled by circulating the heated air along the casing outer surface of the visual recognition portion, the outer surface of the visual recognition portion is heated air Can keep the dew point temperature or higher. Thereby, the occurrence of dew condensation on the surface of the visible portion can be prevented.
  • the air conditioner which comprises a heat pump cycle, since the heat exchange in a condenser is a required thing, the heat heat-exchanged by the condenser can be used effectively.
  • the heating air supply means distributes the heating air in the same direction as the flow of the cooling air circulated between the visual recognition unit and the display panel by the cooling air supply means. You should do it.
  • the cooling air flowing in the space between the visual part and the display panel is gradually heated by the heat in the housing and the panel as it flows in the space.
  • the heated air is also cooled by the outside air and the visual recognition unit by flowing along the visual recognition unit. That is, the temperature of the cooling air in the space is lower as the flow of the cooling air in the space is more upstream, and dew condensation is likely to occur outside the visible portion at that position. Therefore, by circulating the heated air in the same direction as the flow in the space, it is possible to circulate warm heated air at a position where condensation is likely to occur. It can be prevented.
  • the air conditioner is housed in one air conditioning housing and unitized, and an air conditioning unit disposed inside the casing and the air conditioning unit are disposed below the display panel.
  • the cooling air supply means is provided in a cooling air diffuser provided in the housing and above the display panel, and provided between the cooling air diffuser and between the visual portion and the display panel It is good to comprise by the slit opened.
  • the air conditioner is housed in one air conditioning housing and unitized and disposed as the air conditioning unit in the casing, the air conditioning is performed at the time of failure or maintenance of the compressor, the evaporated product, etc. constituting the heat pump cycle. Since each unit can be replaced as a unit, wiring and piping work is facilitated, and handling of parts at failure or maintenance is facilitated.
  • the cooling air after flowing from the top to the bottom between the viewing portion and the display panel flows to a position near the air conditioning unit provided below the panel. This facilitates the circulation of the cooling air.
  • the air conditioner since the air conditioner is heavy, it is not necessary to increase the strength of a support member or the like for holding the air conditioner by unitizing it and providing it below the display panel, preferably at the lowermost portion in the housing. . By this, the enlargement of the display device can be prevented.
  • the air conditioning unit may be provided with an internal air intake port for taking internal air in a housing into the evaporator on the upper surface of the air conditioning housing.
  • the internal air intake port is positioned close to the cooling air after passing between the visual recognition unit and the display panel, and the circulation of the cooling air is facilitated.
  • a back panel that constitutes a surface on the opposite side to the visible portion of the casing and the air conditioning unit be integrally formed. Accordingly, when the air conditioner fails or is maintained, it can be coped with by replacing the integrated unit of the back panel and the air conditioning unit, and it becomes easy to cope with the failure or the maintenance of the air conditioner.
  • the cooling air passage cooled by the air conditioner is integrated with the back panel, it is only necessary to remove the back panel when replacing the air conditioning unit, and there is no need to remove the passage, etc. It will be easier.
  • the air conditioning unit is provided with an external air intake port for taking the external air into the condenser on a side surface of the air conditioning housing, and further, in the housing facing the external air intake port of the air conditioning housing.
  • the external air intake may be formed, and the external air intake may be formed on the side of the casing opposite to the visual recognition unit.
  • a cooling air thermometer for detecting a temperature of cooling air circulated between the visual recognition unit and the display panel, and the visual recognition unit and the display panel based on a detection value of the cooling air thermometer.
  • Temperature control device for controlling the temperature of the cooling air circulated between the two, and environmental information on the inside and outside of the casing including the detected value of the temperature of the cooling air input to the temperature control device via the network
  • environment information distribution means for distributing to an external network device.
  • the air conditioner can be kept operating while the temperature of the cooling air circulated between the visual recognition unit and the display panel is constant.
  • environmental information such as temperature and humidity inside and outside the housing, including the detection value of the cooling air thermometer, to an external network device via a network
  • the inside and outside of the housing can be externally output.
  • the status can be monitored. For example, in the case of arranging a plurality of display devices, if the detection value of the thermometer inside the housing at each of the plurality of display devices and the external atmospheric temperature value are distributed to another network device via one network
  • the operating states of multiple display devices can be managed elsewhere.
  • the air conditioner be accommodated in one air conditioning housing to constitute an air conditioning unit, and that the temperature control device and the environmental information distribution means be also accommodated and disposed in the air conditioning unit.
  • the air conditioning unit can be moved for each unit, and it becomes easy to cope with the change of the size and the installation place of the display device. The degree of freedom in device design is improved.
  • the present invention it is possible to effectively prevent the blackout phenomenon of the display panel caused by the increase in temperature of the display surface of the panel due to direct sunlight and the increase in temperature in the housing caused by the sealing in the housing.
  • the occurrence of dew condensation on the inner surface of the visible portion can also be prevented, and furthermore, the air conditioner can be made compact, and the enlargement of the display device can be prevented.
  • FIG. 1 is an exploded perspective view showing a display device according to Embodiment 1.
  • FIG. It is a perspective view showing an air conditioner. It is a flow figure inside an air conditioner. It is a 1st explanatory view explaining composition inside a case. It is the 2nd explanatory view which explains the constitution inside the case. It is 3rd explanatory drawing explaining the composition inside a case. It is the A section enlarged view in FIG.
  • FIG. 13 is an explanatory view showing a configuration inside a housing in Embodiment 2.
  • FIG. 1 is an exploded perspective view showing the display device according to the first embodiment.
  • the display device 1 according to the embodiment includes a housing 2, a panel (display panel) 10, and an air conditioner unit 12.
  • the housing 2 is formed into a box by combining the main case 4, the tempered glass 6, and the door 8.
  • the tempered glass 6 is transparent so that the inside of the housing 2 can be viewed from the outside through the tempered glass 6.
  • the door 8 is provided to open and close when inspecting the inside of the housing 2 or the like.
  • the panel 10 is for displaying an image or a video, and a liquid crystal panel, a plasma display panel or the like can be used.
  • the air conditioning unit (air conditioning unit) 12 includes a refrigerant circulation path 42 described later, a compressor 32 disposed on the refrigerant circulation path 42, a condenser 34, an expansion valve 36 and an evaporator 38, and other devices constituting a heat pump cycle.
  • a casing (air conditioning housing) 13 The air conditioner unit 12 cools the air inside the housing using a heat pump cycle and heats the air outside the housing.
  • FIG. 2 is a perspective view showing the air conditioner unit 12.
  • an inner air intake port 14 for taking in the internal air inside the housing 2 on the upper surface of the casing 13 and a cooled air taken in from the inner air intake port 14 and cooled Cooling air outlets 16 for discharging the inside of the housing 2 are provided.
  • an external air intake port 18 for absorbing external air outside the housing 2 through the external air intake port 24 provided in the door 8 is provided on the side surface of the casing 13 so as to face the external air intake port 24. It is done.
  • a heated air discharge port 20 for discharging heated air taken in from the external air suction port 18 to the outside of the air conditioner unit 12 is provided on the side surface of the casing 13 so as to face the discharge port 26.
  • 22 is a display part which shows the driving
  • the air conditioner unit 12 includes the compressor 32, the condenser 34, the expansion valve 36, and the evaporator 38 therein, the compressor 32 and the evaporator 38, etc. constituting the heat pump cycle may be damaged or maintained. At the same time, since the air conditioning unit 12 can be replaced as a whole, wiring and piping work are facilitated, and handling of parts or maintenance becomes easy.
  • FIG. 3 is a flow diagram of the inside of the air conditioner unit 12.
  • devices in a range surrounded by a dotted line c are accommodated in the casing 13.
  • the air conditioner unit 12 includes a compressor 32, a condenser 34, an expansion valve 36, and an evaporator 38 therein.
  • the compressor 32, the condenser 34, the expansion valve 36, and the evaporator 38 are disposed in the above order on the refrigerant circulation path 42 through which the refrigerant such as CO 2 circulates.
  • a bypass passage 41 connecting the outlet of the compressor 32 and the inlet of the evaporator 38 is provided, and a bypass expansion valve 40 is provided on the bypass passage 41.
  • the compressor 32 is operated such that the refrigerant discharged from the compressor 32 is brought into a high temperature / high pressure supercritical state above the critical pressure and the critical temperature of the refrigerant.
  • the refrigerant in the supercritical state in the compressor 32 passes through the refrigerant circuit 42 and reaches the condenser 34.
  • the refrigerant that has reached the condenser 34 is cooled and condensed by the external air a taken in from the external air suction port 18, and changes to a high pressure liquid.
  • the refrigerant condensed by the condenser 34 passes through the refrigerant circuit 42 and reaches the expansion valve 36.
  • the external air a is heated by heat exchange with the refrigerant in the supercritical state in the condenser 34 and becomes hot air and is discharged as heated air from the air conditioner unit 12.
  • the refrigerant that has been changed to a high pressure liquid by the condenser 34 is depressurized by the expansion valve 36 to change to a low pressure liquid.
  • the refrigerant converted to a low pressure liquid by the expansion valve 36 passes through the refrigerant circuit 42 and reaches the evaporator 38.
  • the refrigerant reaching the evaporator 38 absorbs heat from the internal air b taken in from the internal air intake port 14 and evaporates.
  • the refrigerant evaporated in the evaporator 38 reaches the compressor 32 through the refrigerant circuit 42.
  • the internal air b is cooled by the heat absorbed by the refrigerant in the evaporator 38, becomes cooling air, and is blown by the evaporator fan 39 as described later.
  • the bypass passage 41 and the bypass expansion valve 40 are used as needed so that the temperature of the cooling air after being cooled by the evaporator 38 becomes constant.
  • the refrigerant which is not cooled by the condenser 34 is expanded by the bypass expansion valve 40 to change to a low pressure liquid, and reaches the evaporator 38 at a higher temperature than when passing through the expansion valve 36.
  • the bypass expansion valve 40 is controlled by the temperature control device 70 based on the detected temperature of the cooling air thermometer 72 so that the detected temperature of the cooling air thermometer 72 in the cooling air diffuser 46 described later becomes a predetermined temperature. .
  • control to make the temperature of the cooling air after being cooled by the evaporator 38 constant can be maintained while the operating state of the compressor 32 of the air conditioner unit 12 is maintained.
  • control which repeats ON and OFF of the compressor 32 is not performed, temperature control of cooling air is stably obtained.
  • the detection value of the cooling air thermometer 72 taken into the temperature control device 70 is distributed by the environment information distribution means 74 to the external network device 76 via the network 75.
  • the detection value of the cooling air thermometer 72 is distributed by the network 75, the air temperature state in the housing 2 can be monitored outside the housing 2.
  • the plurality of display devices are arranged and the detected value of the cooling air thermometer 72 of each of the plurality of display devices is distributed to other network devices 76 via the network 75, the plurality of display devices at other positions You can manage the state of
  • cooling air thermometer 72 In addition to the cooling air thermometer 72, one or more cooling air hygrometers (not shown) and external thermometers and external hygrometers for information concerning external air are provided, and the detected values of these thermometers and hygrometers and the cooling The temperature of the cooling air may be controlled based on the detection value of the air thermometer 72. As described above, the temperature state of the cooling air is finely controlled by detecting the air state inside the housing 2 and the air state outside using the thermometer and the hygrometer, and performing temperature control of the cooling air using the information. It will be possible.
  • environmental information such as temperature and humidity related to the air condition inside the housing 2 and the external air condition are distributed by the environment information distribution means 74 via the network 75, so that a plurality of display devices can be displayed at other places. It is possible to understand the internal and external environmental conditions in detail and manage multiple display devices based on these data.
  • the temperature control device 70 and the environment information distribution means 74 are housed and arranged in the air conditioner unit 12.
  • the air conditioner unit 12 can be moved for each unit, so it becomes easy to cope with changes in the size of the display device 1 and the installation location.
  • the degree of freedom in design of the display device 1 is improved.
  • FIG. 4 is a first explanatory view for explaining the internal configuration of the housing, and the left side 4a of the main case 4 shown in FIG. 1 and the left side 12a of the air conditioner unit 12 shown in FIG. It is explanatory drawing which shows the outline
  • FIG. 5 is a second explanatory view for explaining the internal configuration of the housing, omitting the right side 4b of the main case 4 shown in FIG. 1 and the right side 12b of the air conditioner unit 12 shown in FIG.
  • FIG. 6 is a third explanatory view for explaining the internal configuration of the housing, in which the door 8 shown in FIG. 1 and the back surface 12c of the air conditioner unit 12 shown in FIG.
  • FIG. 6 is an explanatory view showing an outline of a back surface of the display device 1 according to mode 1;
  • FIG. 7 is an enlarged view of a portion A in FIG.
  • a hose 44 is connected to the cooling air discharge port 16.
  • the hose 44 is connected to a cooling air diffuser 46 installed at the upper inside of the housing 2.
  • the cooling air diffuser 46 is provided in a range over the entire width direction of the panel 10 as shown in FIG. 6, and in its lower part, the internal air is jetted into the space 47 between the panel 10 and the tempered glass 6
  • a slit-like cooling air jet 48 is provided.
  • the cooling air diffuser 46 and the slit-like cooling air jet port 48 constitute a cooling air supply means 53 that jets the cooling air with the space between the viewing portion and the display panel facing downward.
  • a heating air branch passage 52 is connected to the heating air discharge port 20.
  • the heating air branch passage 52 is connected to the discharge port 26 provided in the door 8 and reaches a booster fan 54 provided in the inside of the housing 2.
  • the heating air passage 60 is connected to the discharge side of the booster fan 54.
  • the heating air passage 60 is connected to a heating air diffuser 56 provided at the top of the housing 2.
  • the heating air diffuser 56 is provided in a range over the entire width direction of the panel 10 as shown in FIG. 6, and a heating air jet 58 for jetting the air along the outer surface of the tempered glass 6 is provided. .
  • the heating air diffuser 56 and the heating air jet 58 constitute heating air supply means 59 for ejecting air along the outer surface of the tempered glass 6.
  • the cooling air cooled by the heat absorbed by the refrigerant in the evaporator 38 is blown by the evaporator fan 39.
  • the cooling air blown by the evaporator fan 39 is supplied to the cooling air diffuser 46 through the cooling air discharge port 16 and the hose 44.
  • the cooling air supplied to the cooling air diffuser 46 is spouted downward from the cooling air spout 48 in the space 47 between the tempered glass 6 and the panel 10.
  • the cooling air jetted into the space 47 flows downward from above in the space 47 and is again drawn into the evaporator 38 through the internal air intake port 14.
  • the cooling air circulates in the following order: evaporator 38 ⁇ evaporator fan 39 ⁇ cooling air outlet 16 ⁇ hose 44 ⁇ cooling air diffuser 46 ⁇ cooling air jet 48 ⁇ space 47 ⁇ internal air intake 14 ⁇ evaporator 38 Do.
  • the cooling air cooled by the evaporator 38 flows through the space 47, whereby the panel 10 is cooled by the cooling air, and the temperature of the panel 10 can be maintained at a predetermined temperature (for example, 30 to 35 ° C.). Thereby, the blackout phenomenon of the panel 10 can be prevented.
  • the air conditioner unit 12 does not need high cooling capacity.
  • the unit 12 can be configured compactly.
  • the external air taken into the housing 2 from the external air intake port 24 provided in the door 8 is filtered by the air filter 50 provided between the external air intake port 24 and the external air intake port 18. After impurities such as dust and dirt are removed, the air is sucked into the air conditioner unit 12 from the external air suction port 18.
  • the external air drawn into the air conditioning unit 12 is fed to the condenser 34 by the condenser fan 35 and then heated by heat exchange with the refrigerant in the condenser 34.
  • the external air heated by the condenser 34 is introduced into the heating air branch passage 52 as heating air.
  • a portion of the heated air guided to the heated air branch path 52 is discharged to the outside of the housing 2 from the discharge port 26, and a remaining portion is supplied to the heated air diffuser 56 through the heated air passage 60 by the booster fan 54. Be done.
  • the heated air supplied to the heated air diffuser 56 is jetted downward along the outer surface of the tempered glass 6 from the heated air jet 58.
  • the heating air flows in the order of the external air intake port 24 ⁇ the air filter 50 ⁇ the condenser fan 35 ⁇ the condenser 34 ⁇ the heating air branch passage 52.
  • Part of the heating air flowing through the heating air branch passage 52 is discharged to the outside from the discharge port 26, and the remaining part is the booster fan 54 ⁇ heating air passage 60 ⁇ heating air diffuser 56 ⁇ heating air spout 58 ⁇ tempered glass 6 It flows in order of the housing 2 exterior along the outer surface of.
  • the heating air does not flow along the outer surface of the tempered glass 6, it is conceivable that the outer surface of the tempered glass 6 becomes lower than the ambient temperature outside the housing 2 by the cooling air flowing in the space 47. In that case, when the outer surface of the tempered glass 6 becomes the dew point temperature or less, dew condensation occurs on the outer surface of the tempered glass 6 and the visibility of the panel 10 through the tempered glass 6 is deteriorated.
  • the heating air heated by the condenser 34 flows along the outer surface of the tempered glass 6 to strengthen even if the cooling air flows through the space 47 and the inner surface of the tempered glass 6 is cooled.
  • the outer surface of the glass 6 can be heated by the heated air to maintain the dew point temperature or higher. Thereby, the occurrence of condensation on the surface of the tempered glass 6 can be prevented.
  • FIG. 8 is a view corresponding to FIG. 4 and is a display device 1 drawn with the left side 4 a of the main case 4 shown in FIG. 1 and the left side 12 a of the air conditioner unit 12 shown in FIG. It is explanatory drawing which shows the outline
  • the same reference numerals as in FIGS. 1 to 7 denote the same components, and the description thereof will be omitted.
  • the air conditioner unit 12 is integrated with the door 8 which is a back panel that constitutes the surface opposite to the tempered glass 6. Further, the hose 44 is connected to a cooling air passage 45 integrated with the door 8. The cooling air passage 45 is in communication with the cooling air diffuser 46 via the cooling air flow port 51 when the door 8 is closed.
  • Reference numeral 49 denotes a cushion for cushioning the impact of the collision between the cooling air diffuser 46 and the cooling air passage 45 when the door 8 is opened and closed.
  • the failure or maintenance of the air conditioner unit 12 can be coped with by replacing the integrated unit of the door 8 and the air conditioner unit 12, and the failure or maintenance of the air conditioner unit 12 can be handled. It is easy. Furthermore, since the cooling air passage 45, which is a passage for cooling air cooled by the air conditioning unit 12, is integrated with the door 8, the cooling air passage 45 is integrated with the door 8 by removing the door 8 when replacing the air conditioning unit 12. Therefore, it is not necessary to separately remove the cooling air passage 45 separately, and it becomes easier to cope with failure or maintenance.
  • the present invention it is possible to effectively prevent the blackout phenomenon of the display panel caused by the increase in temperature of the display surface of the panel due to direct sunlight and the increase in temperature in the housing caused by the sealing in the housing. Since the occurrence of condensation on the inner surface of the visual recognition part can be prevented and the air conditioner can be made compact, it is suitable for use in a display device having a display panel for displaying an image or a video.
  • Display Device 2 Housing 6 Tempered Glass (Viewing Part) 8 door (back panel) 10 panel (display panel) 12 Air conditioning unit (air conditioning unit) 13 Casing (Air conditioning housing) 14 internal air intake 16 cooling air outlet 32 compressor 34 condenser 36 expansion valve 38 evaporator 46 internal air diffuser 48 internal air jet (slit) 53 Cooling air supply means 59 Heating air supply means 70 Temperature control device 74 Environmental information distribution means

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention a pour objet d'empêcher, de manière efficace et fiable, un phénomène de noir d'un panneau d'affichage dans un appareil d'affichage comportant le panneau d'affichage, tel un panneau d'affichage à cristaux liquides, se trouvant dans un boîtier, l'appareil d'affichage permettant de visualiser une image ou une vidéo présentée sur le panneau dans le boîtier depuis l'extérieur, le phénomène de noir étant causé par une augmentation de température due à l'exposition à la lumière solaire directe ou à de la chaleur générée par le panneau d'affichage. L'appareil d'affichage de la présente invention est caractérisé en ce qu'il comporte : un boîtier ; un panneau d'affichage (10) logé dans le boîtier et configuré pour présenter une image ou une vidéo ; une partie de visualisation (6) formée dans une partie du boîtier orientée vers le panneau d'affichage et réalisée à partir d'un élément transparent permettant la visualisation de l'intérieur du boîtier ; un appareil de conditionnement d'air constituant un cycle de pompe à chaleur ; et un moyen d'alimentation en air de refroidissement (46, 48) pour faire circuler de l'air de refroidissement refroidi par l'évaporateur de l'appareil de conditionnement d'air dans un espace (47) entre la partie de visualisation et le panneau d'affichage, depuis la partie supérieure jusqu'à la partie inférieure du panneau d'affichage.
PCT/JP2011/058991 2011-04-11 2011-04-11 Appareil d'affichage WO2012140714A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2011/058991 WO2012140714A1 (fr) 2011-04-11 2011-04-11 Appareil d'affichage
KR1020137026211A KR101485767B1 (ko) 2011-04-11 2011-04-11 디스플레이 장치
JP2013509677A JP5721814B2 (ja) 2011-04-11 2011-04-11 ディスプレイ装置
CN201180069927.5A CN103477383B (zh) 2011-04-11 2011-04-11 显示装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/058991 WO2012140714A1 (fr) 2011-04-11 2011-04-11 Appareil d'affichage

Publications (1)

Publication Number Publication Date
WO2012140714A1 true WO2012140714A1 (fr) 2012-10-18

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JP (1) JP5721814B2 (fr)
KR (1) KR101485767B1 (fr)
CN (1) CN103477383B (fr)
WO (1) WO2012140714A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103903514A (zh) * 2012-12-25 2014-07-02 苏州昆拓热控系统股份有限公司 数字显示装置
CN104200758A (zh) * 2014-08-12 2014-12-10 苏州佳世达电通有限公司 一种显示装置
WO2015045118A1 (fr) * 2013-09-27 2015-04-02 フレンド株式会社 Générateur d'hydrogène gazeux
JP2016112772A (ja) * 2014-12-15 2016-06-23 株式会社日本製鋼所 加熱シリンダの温度制御方法
CN106251777A (zh) * 2016-09-20 2016-12-21 吉首大学 带热泵加热除湿的大型减震电子显示屏
WO2022034673A1 (fr) * 2020-08-13 2022-02-17 Nec Corporation Système, procédé et support de stockage lisible par ordinateur non transitoire

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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KR20190108965A (ko) * 2018-03-16 2019-09-25 삼성전자주식회사 디스플레이 장치 및 그 제어 방법
CN110153130A (zh) * 2019-06-26 2019-08-23 华能莱芜发电有限公司 用于料场的激光扫描镜面清洁装置
KR102472934B1 (ko) * 2022-02-25 2022-12-01 주식회사 씨테크코퍼레이션 선박 접안 지원 시스템

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05145240A (ja) * 1991-11-22 1993-06-11 Sony Corp 防水パツク
JPH09307257A (ja) * 1996-05-20 1997-11-28 Fujitsu General Ltd 映像表示装置
JP2006010851A (ja) * 2004-06-23 2006-01-12 Fuji Xerox Co Ltd 画像表示装置
JP2006163217A (ja) * 2004-12-10 2006-06-22 Mitsubishi Electric Corp 屋外用表示装置
JP2010175852A (ja) * 2009-01-29 2010-08-12 Sanyo Electric Co Ltd 画像表示装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08328489A (ja) * 1995-03-29 1996-12-13 Fujitsu Kiden Ltd 表示素子、及び表示機器の温度制御装置
KR101014560B1 (ko) * 2008-05-07 2011-02-16 (주)삼진테크 옥외용 디스플레이 함체

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05145240A (ja) * 1991-11-22 1993-06-11 Sony Corp 防水パツク
JPH09307257A (ja) * 1996-05-20 1997-11-28 Fujitsu General Ltd 映像表示装置
JP2006010851A (ja) * 2004-06-23 2006-01-12 Fuji Xerox Co Ltd 画像表示装置
JP2006163217A (ja) * 2004-12-10 2006-06-22 Mitsubishi Electric Corp 屋外用表示装置
JP2010175852A (ja) * 2009-01-29 2010-08-12 Sanyo Electric Co Ltd 画像表示装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103903514A (zh) * 2012-12-25 2014-07-02 苏州昆拓热控系统股份有限公司 数字显示装置
WO2015045118A1 (fr) * 2013-09-27 2015-04-02 フレンド株式会社 Générateur d'hydrogène gazeux
JPWO2015045118A1 (ja) * 2013-09-27 2017-03-02 フレンド株式会社 水素ガス発生装置
CN104200758A (zh) * 2014-08-12 2014-12-10 苏州佳世达电通有限公司 一种显示装置
JP2016112772A (ja) * 2014-12-15 2016-06-23 株式会社日本製鋼所 加熱シリンダの温度制御方法
CN106251777A (zh) * 2016-09-20 2016-12-21 吉首大学 带热泵加热除湿的大型减震电子显示屏
CN106251777B (zh) * 2016-09-20 2019-02-05 吉首大学 带热泵加热除湿的大型减震电子显示屏
WO2022034673A1 (fr) * 2020-08-13 2022-02-17 Nec Corporation Système, procédé et support de stockage lisible par ordinateur non transitoire

Also Published As

Publication number Publication date
CN103477383A (zh) 2013-12-25
KR101485767B1 (ko) 2015-01-23
CN103477383B (zh) 2015-09-09
KR20130137021A (ko) 2013-12-13
JP5721814B2 (ja) 2015-05-20
JPWO2012140714A1 (ja) 2014-07-28

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