CN106773212B - Full-closed display unit - Google Patents

Full-closed display unit Download PDF

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Publication number
CN106773212B
CN106773212B CN201611270088.4A CN201611270088A CN106773212B CN 106773212 B CN106773212 B CN 106773212B CN 201611270088 A CN201611270088 A CN 201611270088A CN 106773212 B CN106773212 B CN 106773212B
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China
Prior art keywords
mounting
space
display unit
mounting frame
fully
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Active
Application number
CN201611270088.4A
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Chinese (zh)
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CN106773212A (en
Inventor
张黔中
顾荣君
张宁
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Keewin Display Co ltd
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Keewin Display Co ltd
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Priority to CN201611270088.4A priority Critical patent/CN106773212B/en
Publication of CN106773212A publication Critical patent/CN106773212A/en
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Publication of CN106773212B publication Critical patent/CN106773212B/en
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    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133311—Environmental protection, e.g. against dust or humidity
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames

Abstract

The invention relates to a fully enclosed display unit comprising: the mounting frame is formed by enclosing and splicing a plurality of mounting strips, two adjacent mounting strips are connected in a sealing manner, a front side opening and a rear side opening are formed in the mounting frame, and a mounting structure is arranged on the inner side surface of the mounting frame; the backboard is arranged at the rear side opening and is in sealing connection with the mounting frame; the protective glass is arranged at the front side opening and is in sealing connection with the mounting frame, and a closed space is formed among the protective glass, the mounting frame and the back plate; and the display module is arranged on the mounting frame through the mounting structure. The full-closed display unit is adopted, a good working environment is provided for the display module by the closed space formed inside the full-closed display unit, the air cleanliness in the working environment can be ensured to ensure the display effect and the service life of the display module, and the display unit meets the requirements of light and thin.

Description

Full-closed display unit
Technical Field
The invention relates to the field of display units, in particular to a full-closed display unit.
Background
The existing display unit is usually provided with the display module in an outer shell, and often the size of the outer shell is designed to be far larger than that of the display module, so that on one hand, a space for installing and accommodating the display module is provided, and on the other hand, a good heat dissipation function is also provided for the display module. The existing heat radiation structure of the display unit is that fans are arranged on opposite side parts of the shell, external air is introduced through the fans to form convection so as to radiate heat of the display module, but the cleanliness of air in the shell is poor due to the fact that the external air is introduced, and therefore the display effect and the service life of the display module are affected.
Therefore, the applicant of the present invention proposes a prior patent application (patent grant publication number: CN205681747U, the invention name: a closed display terminal), which ensures the cleanliness of the working environment of the display module by providing an external housing forming a closed space, and provides a powerful guarantee for the display effect and service life of the display module. However, the circulation fan of the sealed display terminal is arranged between the display module and the shell and the installation mode of the display module, so that the display terminal cannot meet the requirement of light weight and thinness.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a fully-closed display unit, and solves the problems that the display effect and the service life of the display unit are influenced by a non-closed structure and the closed structure cannot meet the requirements of light and thin.
The technical scheme for achieving the purpose is as follows:
the invention provides a fully-closed display unit, which comprises:
the mounting frame is formed by enclosing and splicing a plurality of mounting strips, two adjacent mounting strips are connected in a sealing manner, a front side opening and a rear side opening are formed in the mounting frame, and a mounting structure is arranged on the inner side surface of the mounting frame;
the backboard is arranged at the rear side opening and is in sealing connection with the mounting frame;
the protective glass is arranged at the front side opening and is in sealing connection with the mounting frame, and a closed space is formed among the protective glass, the mounting frame and the back plate; and
and the display module is arranged on the mounting frame through the mounting structure.
The full-closed display unit is adopted, and a closed space formed inside the full-closed display unit provides a good working environment for the display module, so that the air cleanliness in the working environment can be ensured to ensure the display effect and the service life of the display module. The display unit is formed by adopting the assembly structure, so that the size of the display unit is controllable, the display unit can be designed according to the light and thin requirements, and the mounting structure for mounting the display module is formed on the mounting strip, so that the size of the display unit is similar to the size of the display module, and the light and thin requirements are met.
The invention further improves the fully-closed display unit in that the mounting strip is provided with a channel for accommodating the driving plate of the display module close to the front side opening.
The fully-sealed display unit is further improved in that a first space is formed between the display module and the back plate, and the driving plate penetrates into the first space from the channel.
The invention further improves the fully-closed display unit, wherein a first space is formed between the display module and the back plate, a communication port communicated with the first space is formed on the channel, and a fan for supplying air into the channel is arranged at the communication port.
The fully-sealed display unit is further improved in that channels between two adjacent mounting strips are communicated to form a communicated air channel in the mounting frame, and the fan forms circulating air flow in the air channel.
The invention further improves the fully-closed display unit, wherein a second space is formed between the display module and the protective glass, a vent communicated with the second space is arranged on the channel, and the fan forms circulating air flow among the channel, the second space and the first space.
The invention further improves the fully-closed display unit, which is characterized in that the front opening part of the mounting frame is further formed with:
a first mounting table relatively far from the back plate for mounting the protective glass;
the second mounting table is relatively close to the backboard and is used for mounting the liquid crystal panel of the display module;
an OCA film disposed between the cover glass and the liquid crystal panel; and
and the pressure screen strip is used for externally pressing and fixing the protective glass on the first mounting surface.
The invention further improves the fully-closed display unit, wherein the periphery of the protective glass is connected with the mounting frame in a sealing way through a pressure screen strip, a sealing strip is clamped between the protective glass and the pressure screen strip, the pressure screen strip is connected with the outer side surface of the mounting frame in a fastening way through a connecting screw, and a separation groove is formed in the mounting strip of the mounting frame corresponding to the connecting screw, and the sealing space is separated from the connecting screw through the separation groove.
The invention further improves the fully-sealed display unit, wherein the backboard is formed by splicing a plurality of backboard units, the end parts of the backboard units are provided with splicing parts, two adjacent backboard units are butted by the splicing parts and are further connected by connecting screws in a fastening way, one splicing part of the two adjacent backboard units is provided with a separation groove in the sealed space corresponding to the connecting screws, and the sealed space and the connecting screws are separated by the separation groove.
The invention further improves the fully-closed display unit, wherein a first space is formed between the display module and the back plate, a fan bracket is arranged in the first space, and a plurality of cooling fans are arranged on the fan bracket.
Drawings
Fig. 1 is a schematic structural diagram of a fully-enclosed display unit according to the present invention.
Fig. 2 is an exploded view of the fully-enclosed display unit of the present invention.
Fig. 3 is a top view of the fully-enclosed display unit of the present invention.
Fig. 4 is a cross-sectional view of a fully enclosed display unit of the present invention.
Fig. 5 is a cross-sectional view of a first embodiment of the fully enclosed display unit of the present invention.
Fig. 6 is an exploded view of the end side of the structure shown in fig. 5.
Fig. 7 is an enlarged schematic view of the connection between the mounting bar and the pressure bar in fig. 5.
Fig. 8 is an enlarged schematic view of the junction of the back plates in fig. 5.
Fig. 9 is a cross-sectional view of a second embodiment of the fully enclosed display unit of the present invention.
Fig. 10 and 11 are schematic views showing the state of the installation process of the embodiment shown in fig. 9.
Fig. 12 is a cross-sectional view of a third embodiment of the fully enclosed display unit of the present invention.
Fig. 13 is a cross-sectional view of a fourth embodiment of the fully enclosed display unit of the present invention.
Fig. 14 is a cross-sectional view of a fifth embodiment of the fully enclosed display unit of the present invention.
Fig. 15 is a cross-sectional view of the fully enclosed display unit in the embodiment shown in fig. 14.
Fig. 16 is a partially enlarged schematic view of the structure of fig. 15.
Fig. 17 is a cross-sectional view of a first side of a preferred embodiment of the fully enclosed display unit of the present invention.
Fig. 18 is a cross-sectional view of a second side of a preferred embodiment of the fully enclosed display unit of the present invention.
Fig. 19 is a schematic view showing a mounting structure of a liquid crystal panel in the fully-enclosed display unit of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
Referring to fig. 1, the invention provides a fully-closed display unit, which is compared with a display unit provided with a display module in a common outer shell, on one hand, due to the sealing performance, the fully-closed display unit of the invention provides a working environment with high cleanliness for the display module, improves the display effect and service life of the display module, and on the other hand, the fully-closed display unit adopts a mounting frame formed by assembling mounting strips as the outer shell, and the inner side surface of the mounting frame is provided with a mounting structure for mounting the display module, so that the whole fully-closed display unit is light and thin, and meets the requirements of lightening and thinning. In addition, the mounting strip of the fully-closed display unit is provided with the channel, and the driving plate of the display module is accommodated in the channel, so that the fully-closed display unit can be made light and thin, and the existing display unit which is usually provided with the display module in the outer shell is generally arranged outside the outer shell or a certain space is reserved in the outer shell, so that the outer shell cannot be closed or cannot be thinned. The channel in the fully-closed display unit has multiple functions, can accommodate the driving plate, provides an accommodating space for the driving plate of the display module, does not influence the sealing performance of the display unit, can prevent harmful substances and water vapor from corroding by arranging the driving plate in the sealing space, can shield electromagnetic (EMC, electro Magnetic Compatibility) interference, can effectively protect the driving plate, and can also serve as an air duct for ventilation and heat dissipation to provide internal circulation airflow for the display module to dissipate heat. The fully enclosed display unit of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 4, the fully-enclosed display unit 30 of the present invention includes a mounting frame 31, a back plate 32, a cover glass 33 and a display module 35, wherein the mounting frame 31 is formed by splicing a plurality of mounting bars 311, two adjacent mounting bars 311 are in sealing connection, a front opening 312 and a rear opening 313 are formed on the mounting frame 31, and a mounting structure is provided on an inner side 315 of the mounting frame 31. The back plate 32 is mounted at the rear opening 313 of the mounting frame 31, covers the rear opening of the mounting frame 31, and the back plate 32 is hermetically connected with the mounting frame 31. The cover glass 33 is mounted on the front opening 312 of the mounting frame 31, and covers the front opening 312 of the mounting frame 31, and the cover glass 33 is hermetically connected to the mounting frame 31, so that a closed space 34 is formed inside the cover glass 33, the mounting frame 31, and the back plate 32. The display module 35 is mounted on the mounting frame 31 through a mounting structure on the inner side 315 of the mounting frame 31, and the display module 35 is disposed near the protective glass 33, and the display module 35 is disposed in the enclosed space 34.
As shown in fig. 2, the end portions of two adjacent mounting bars 311 are adjacent to each other and are fixedly connected by a corner joint member 317, a groove adapted to the corner joint member 317 is provided on the outer side surface of the mounting bar 311 to accommodate the corner joint member 317, so that after the mounting bar 311 is fixed by the corner joint member 317, the corner joint member 317 is disposed in the groove, and the outer side surface of the mounting bar 311 is kept flat. Preferably, the mounting frame 31 includes four mounting bars 311, and ends of the four mounting bars 311 are adjacent to each other to form a square mounting frame 31, and of course, the length of the mounting bars 311 can be selected according to the design size of the display unit 30.
The display module 35 of the present invention may be a liquid crystal display module, and includes a liquid crystal panel, which may be an open cell defined in the industry, where the open cell is configured with various interfaces on the basis of the cell so as to facilitate an external signal source, and the cell is filled with liquid crystal between two glass plates so as to form a sealed liquid crystal assembly, and the outer tube is different from a common sheet glass. The liquid crystal display module is preferably an LCD (Liquid Crystal Display, thin film transistor liquid crystal display device), and further, it is preferably suitable for DLED (Direct Light Emitting Diode) direct type light source arrangement.
As shown in fig. 5 and 6, a cross-sectional view of a mounting bar in a mounting frame of a fully-enclosed display unit is shown, and as a first embodiment of the present invention, a channel 3111 for accommodating a driving board 352 connected to a display module 35 is provided near a front opening 312 of the mounting bar 311 in the display unit 30, and the channel 3111 is opened inside the mounting bar 311 for accommodating the driving board 352. In the first embodiment, when the display module 35 is mounted on the inner side 315 of the mounting bar 311 of the mounting frame 31 by the mounting structure, the driving board 352 penetrates into the channel 3111 through the opening formed on the inner side 315 and is disposed in the channel 3111. The passage 3111 is provided inside the mounting bar 311 and communicates with the sealed space 34 at the inner side 315 of the mounting bar 311 through the opening through which the drive plate 352 passes, but the passage 3111 does not communicate with the outer side 316 of the mounting bar 311, so that sealing performance of the sealed space 34 can be ensured.
The display module 35 includes a liquid crystal panel 351, an optical film 353 and a lamp plate 354, wherein a corresponding mounting structure is formed on an inner side 315 of the mounting strip 311, the display module includes a second mounting table 3117 for mounting the liquid crystal panel 351, a mounting groove 3118 for mounting the optical film 353 and a mounting surface 3119 for mounting the lamp plate 354, the second mounting table 3117 is L-shaped, i.e. a flange for abutting against or blocking the end of the liquid crystal panel 351 is vertically disposed on a table top for supporting the end of the liquid crystal panel 351, the end of the liquid crystal panel 351 is disposed on the second mounting table 3117, and in combination with fig. 19, the end of the liquid crystal panel 351 is fixed on the second mounting table 3117 by a limiting adhesive tape 44, the limiting adhesive tape 44 is made of a silica gel material, the limiting adhesive tape 44 is L-shaped, and includes a first adhesive tape side and a second adhesive tape side which are perpendicularly connected to each other, the first adhesive tape side is pressed on an outer surface of the end of the liquid crystal panel 351, the second adhesive tape side is disposed between the end of the liquid crystal panel 351 and the flange of the second mounting table 3117, and the liquid crystal panel 351 is limited and fixed on the second mounting table 3117 by the limiting adhesive tape 44. The end of the optical film 353 is inserted into the mounting groove 3118, a diffusion plate is attached to one side of the optical film 353 corresponding to the lamp plate 354, the diffusion plate is inserted into the mounting groove 3118 together with the optical film 353, and the end of the lamp plate 354 is disposed on the mounting surface 3119 and is fastened to the mounting surface 3119 by screws. The liquid crystal panel 351 includes liquid crystal glass, and a Chip On (Chip On Flex) (On which a driving IC is mounted) film is connected to a terminal of the liquid crystal glass, and a processing Chip is mounted On the COF, and the length of the COF is usually fixed when factory leaves factory. The driving board 352 is connected to the COF, and the driving board 352 is a PCB (Printed Circuit Board ), in the first embodiment, the PCB is placed in the channel 3111, and the PCB cannot be placed behind the display module 35 due to the limited length of the COF, so the mounting bar 311 is provided with the channel 3111 near the front opening 312, the front opening 213 is provided with the cover glass 33, and the liquid crystal panel 351 is provided near the cover glass 33, so that the PCB can be placed in the channel 3111.
For convenience of description, a side of the liquid crystal panel 351 of the display module 35, which is close to the cover glass, is defined as a front portion 356 of the display module 35, and a side of the lamp panel 354, which is close to the back plate 32, is defined as a back portion 355 of the display module 35.
The cover glass 33 is mounted at the front opening 312 of the mounting frame 31, and as shown in fig. 5 to 7, the periphery of the cover glass 33 is connected with the mounting frame 31 in a sealing manner by the pressure screen strip 37, a sealing strip 41 is sandwiched between the cover glass 33 and the pressure screen strip 37, and the sealing strip 41 plays a role in sealing so as to ensure the tightness of the airtight space 34 of the display unit 30, and the sealing strip 41 is made of silica gel. The pressure screen strip 37 is fastened and connected with the outer side 316 of the mounting frame 31 through the connecting screw 43, the mounting strip 311 of the mounting frame 31 is provided with a separation groove 3114 corresponding to the connecting screw 43, the separation groove 3114 separates the airtight space 34 from the connecting screw 43, and the connecting screw 43 is prevented from damaging the airtight property of the airtight space 34. Specifically, as shown in fig. 6, a first mounting table 3116 is formed on the end side of the mounting bar 311, the first mounting table 3116 is used for mounting the cover glass 33, the end portion of the cover glass 33 is sleeved with a sealing strip 41, and the sealing strip 41 is in a U shape and is sleeved on the end portion of the cover glass 33 to play a role of sealing. The end of the cover glass 33 is sleeved with the sealing strip 41 and then placed on the first mounting table 3116 of the mounting strip 311, as shown in fig. 5, the end of the cover glass 33 sleeved with the sealing strip 41 is tightly abutted against the first mounting table 3116 of the mounting strip 311, the first mounting table 3116 is L-shaped, that is, a flange for abutting against or blocking the end of the cover glass 33 is vertically arranged on a table top supporting the end of the cover glass 33, and the outer surface of the end of the cover glass 33 is flush with the end surface of the flange of the first mounting table 3116. The press screen strip 37 is L-shaped and comprises a first press edge 371 and a second press edge 372, wherein the first press edge 371 is attached to the outer side face of the end portion of the protective glass 33, the second press edge 372 is attached to the outer side face 316 of the installation strip 311, the end portion of the protective glass 33 is pressed by the first press edge 371, the sealing strip 41 at the end portion is pressed to achieve a sealing connection effect, the second press edge 372 is fixedly connected with the installation strip 311, the second press edge 372 is attached to the outer side face 316 of the installation strip 311 and is fixedly connected to the installation strip 311 through the connection screw 43, the outer side face 316 of the installation strip 311 is provided with a groove for the second press edge 372, and the outer surface of the second press edge 372 is flush with the outer surface of the installation strip 311 after being attached to the groove. In order to ensure the tightness of the airtight space 34, the mounting strip 311 is provided with a separation groove 3114 at the installation position of the connection screw 43, and the sealing space 34 and the connection screw 43 are separated by the separation groove 3114, so that the tightness of the airtight space 34 is prevented from being damaged by the connection gap of the connection screw 43. In this embodiment, the bottom wall of the isolation groove 3114 is a portion of the side wall of the channel 3111, the top wall of the isolation groove 3114 is provided with a connecting hole for connecting the connecting screw 43, and the top wall is provided with a certain thickness to enhance the connecting strength of the connecting screw 43, so as to ensure reliable fastening of the connection.
The back plate 32 is mounted at the rear opening 313 of the mounting frame 31, as shown in fig. 5 and 6, the mounting bar 311 of the mounting frame 31 is formed with a caulking groove 3115 at the rear opening 313, the caulking groove 3115 is formed at the end of the mounting bar 311, the caulking groove 3115 is filled with a sealing strip 42, the end of the back plate 32 is disposed on the sealing strip 42 and is fastened to the mounting bar 311 by a connecting screw 43, the mounting bar 311 is also provided with a separating groove 3114 corresponding to the connecting screw 43, and the sealing space 34 and the connecting screw 43 are separated by the separating groove 3114 to ensure the sealing property of the sealing space. The sealing strip 42 is arranged in the caulking groove 3115, the end part of the backboard 32 is arranged on the sealing strip 42, the end part of the backboard 32 extrudes the sealing strip 42 and is adhered to the end surface of the caulking groove 3115, the sealing strip 42 is tightly connected with the end surface of the caulking groove 3115 through the connecting screw 43, the sealing strip 42 is made of silica gel, and the sealing strip 3114 is arranged to avoid the damage of the connecting screw 43 to the tightness.
As shown in fig. 5 and 8, the back plate 32 includes a plurality of back plate units 321, the back plate 32 is formed by splicing a plurality of back plate units 321, the end parts of the back plate units 321 are provided with splicing parts 322, two back plate units 321 connected with each other are matched with each other through the splicing parts 322 to realize sealing connection, specifically, the splicing parts 322 on the first back plate unit 321 in the two back plate units 321 spliced with each other include a connecting plate protruding outwards and an L-shaped strip protruding inwards, an inserting groove is formed in the L-shaped strip, the splicing parts 322 of the second back plate unit 321 include inserting strips protruding forwards at the end parts and matched with the inserting groove, and further include an isolating groove 323 formed at the end parts and arranged on the inner side, when the splicing parts 322 of the first back plate unit 321 and the second back plate unit 321 are spliced with each other, the inserting strips are inserted in the inserting grooves, the connecting plate is attached to the end parts of the second back plate unit 321 and forms a space for clamping the sealing strips 324, the sealing strips 324 play a sealing role, and the sealing strips 324 are made of silica gel. The connecting plate is fastened to the end of the second back plate unit 321 by a connecting screw 325, the end of the connecting screw 325 is placed in the isolation groove 323, and the connecting screw 325 is isolated from the airtight space 34 by the isolation groove 323, so that the damage of the connecting screw 325 to the airtight is avoided. To improve the heat dissipation effect of the display unit 30, the inner and outer surfaces of the back plate 32 are provided with heat dissipation fins to achieve the heat dissipation effect through heat exchange between the inner and outer surfaces.
As shown in fig. 9, a second embodiment of the fully-enclosed display unit is shown, which is different from the first embodiment in that an OCA (optical cement, optically Clear Adhesive) film is closely attached between the cover glass 33 and the liquid crystal panel 351 of the display module 35, so as to improve the display effect of the display unit 30. An OCA film may be provided between the cover glass 33 and the liquid crystal glass of the liquid crystal panel 351, as shown in fig. 6, because the structure of the mounting frame in the first embodiment, that is, the front side opening 312 on the mounting frame 31 is further formed with the first mounting table 3116 and the second mounting table 3117, and the cover glass 33 is fixed on the first mounting table 3116 by the hold-down bar 37 press-fitted from the outside, specifically the first mounting table 3116 is provided relatively far from the back plate 32, the second mounting table 3117 is provided relatively close to the back plate 32, the first mounting table 3116 is used for mounting the cover glass 33, the second mounting table 3117 is used for mounting the liquid crystal panel 351 of the display module 35, the arrangement of the first mounting table 3116 and the second mounting table 3117 makes the space between the cover glass 33 and the liquid crystal glass of the liquid crystal panel 351 smaller, so that the OAC can be attached between the cover glass 33 and the liquid crystal glass of the liquid crystal panel 351, and the hold-down bar 37 is further press-fitted from the outside to fix the cover glass 33 on the first mounting surface 3116. In the second embodiment, the sealing strip 41 has an L-shaped structure, and is attached to the end face and the outer side face at the end of the cover glass. As shown in fig. 10 and 11, when the OCA film is tightly attached between the cover glass 33 and the liquid crystal panel 351 of the display module 35, the liquid crystal panel 351 and the cover glass 33 are attached together by the OCA film, and then mounted on the mounting frame 31, and then press-fitted and fixed together by the press-fit strip 37. The display unit 30 of the present invention has a small gap between the cover glass 33 and the liquid crystal panel 351 due to the arrangement of the channel 3111 for accommodating the driving plate 352, so that the OCA film can be attached between the cover glass 33 and the liquid crystal panel 351, and the OCA film can be attached to improve the image quality, so that the display effect has High Contrast (High Contrast), high brightness (Higher Brightness) and No Contrast angle (No parallelax). The thickness of the CCF film is only 3-5 μm, the distance between the traditional liquid crystal panel and the protective glass is larger, an OCA film cannot be used, the common liquid crystal panel is installed through a pressure-screen strip, the thickness of the pressure-screen strip is usually 0.5-1 mm, foam is also arranged between the pressure-screen strip and the liquid crystal panel in a cushioning mode for protecting the liquid crystal panel, the thickness of the foam is usually 0.2-1 mm, and therefore a gap of at least 0.7mm exists between the liquid crystal panel and the protective glass, the gap causes that the OCA film cannot be used, and the liquid crystal panel and the protective glass are bonded through water gel or jelly gel in the prior art. Therefore, the display effect of the display unit attached with the OCA film is better than that of the traditional display unit.
As shown in fig. 12, a third embodiment of the fully-enclosed display unit is shown, which is different from the second embodiment in that a first space 342 is formed between the display module 35 and the back 32, and the driving plate 351 penetrates into the first space 342 from the channel 3111, so that a larger space of the first space 342 can be utilized to bring a better heat dissipation effect to the driving plate 351, and the first space 342 is larger than the channel 3111, so that the heat dissipation effect is better, and the operating temperature of the driving plate 352 can be reduced. Specifically, the channel 3111 is provided with a communication port 3112 that communicates with the first space 342, the communication port 3112 is disposed near the back 355 of the display module 35, and the driving plate 352 extends out from the communication port 3112 and is disposed in the first space 342. In the third embodiment, since the length of the line connected to the collector port of the liquid crystal glass of the liquid crystal panel 351 meets the requirement, the driving board 352 is led out from the channel 3111 to the back 355 of the display module 35 and placed in the first space 342, and the line is placed in the channel 3111, so that the operating temperature of the driving board 352 can be reduced, and the reliability of the display unit 30 can be improved. The driving plate 352 is suspended in the first space 342 at the back 355 of the display module 35, so that the driving plate can be suitable for various brands of open cells, and has a wide application range.
As shown in fig. 13, a fourth embodiment of the fully-enclosed display unit is shown, which is different from the first embodiment in that a first space 342 is formed between the display module 35 and the back plate 32, a communication port 3112 communicating with the first space 342 is formed in the channel 3111, and a fan 39 for blowing air into the channel 3111 is mounted at the communication port 3112. The fan 39 blows air into the tunnel 3111 through the communication port 3112 to dissipate heat from the tunnel 3111. When the drive plate 352 is accommodated in the duct 3111, the air blown by the fan 39 can radiate heat from the drive plate 352. Further, in the fourth embodiment, a second space 341 is formed between the display module 35 and the cover glass 33, a vent 3113 is formed on the channel 3111 and is in communication with the second space 341, and the fan 39 forms a circulating air flow in the channel 3111, the second space 341 and the first space 342 to dissipate heat from all the components in the display unit 30. Preferably, the circulating air flow can enter from the channel 3111 at the top mounting bar 311, flow through the channel 3111 into the second space 341, move downwards from the top of the second space 341, further enter from the channel 3111 at the bottom mounting bar 311 into the first space 342, and move upwards from the bottom of the first space 342, thereby forming circulating air flow in the closed space, and realizing the effect of cooling and heat dissipation. The circulating air flow may also enter from the channel 3111 on any of the mounting bars 311, be fed into the space 341 through the channel 3111, and enter from the space 341 into the space 342 through the channel 3111 on any of the mounting bars 311, so that an internal circulating air flow may be formed. In the fourth embodiment, a certain space is left between the cover glass 33 and the liquid crystal panel 351 to form a second space 341, and the space 341 allows the circulating air flow to pass through to achieve the heat dissipation effect.
As shown in fig. 14, a fifth embodiment of the fully-enclosed display unit is shown, which is different from the first embodiment and the second embodiment in that a first space 342 is formed between the display module 35 and the back plate 32, a communication port 3112 communicating with the first space 342 is formed on the channel 3111, and a fan 39 for blowing air into the channel 3111 is installed at the communication port 3112. The fan 39 blows air into the tunnel 3111 through the communication port 3112 to dissipate heat from the tunnel 3111. When the drive plate 352 is accommodated in the duct 3111, the air blown by the fan 39 can radiate heat from the drive plate 352. Further, in the fifth embodiment, as shown in fig. 15 and 16, the channels 3111 between two adjacent mounting bars 311 are communicated to form a communicating air duct 314 in the mounting frame 31, and the fan 39 forms a circulating air flow in the air duct 314 to achieve a heat dissipation effect. A communicating air duct 314 is formed in the mounting frame 31, and the cooling and heat dissipation effects are achieved by circulating air flow in the air duct 314. The distinguishing technical features of this fifth embodiment may be provided on the basis of either the first or second embodiment, and fig. 14 shows a structure provided on the basis of the second embodiment.
As shown in fig. 17 and 18, a preferred embodiment of the present invention will be described, and the preferred embodiment can be applied to the above-described various embodiments. In the preferred embodiment, a first space 342 is formed between the display module 35 and the back plate 32, the first space 342 is used for installing a functional module, a flexible flat cable (FFC, flexible Flat Cable, also called flexible flat copper wire) 21, a T-con (Timing Controller) connected to the flexible flat cable 21, and a motherboard 23 and a display driving board 24 are installed in the installation space 342. The driving board 352 connected to the liquid crystal panel 351 is connected to the flexible flat cable 21, the length of the flexible flat cable 21 can be customized according to practical situations, the flexible flat cable 21 is connected to the T-con22, and the T-con22 is connected to the motherboard 23 and the display driving board 24 through an LVDS (Low Voltage Differential Signaling, low voltage differential signaling technology for transmitting digital video signals) line. The T-con22, the driving plate 352, the line connecting the line concentration port of the liquid crystal panel and the driving plate 352, and the liquid crystal glass in the present invention are collectively referred to as open cell (liquid crystal panel). Further, the fan bracket 38 is installed in the first space 342, the fan bracket 38 is fixedly connected to the inner side surface of the mounting bar 311, and similarly, the screw correspondingly connected to the mounting bar 311 is provided with a separation groove to ensure the tightness of the closed space. A plurality of heat dissipation fans 381 are mounted on the fan bracket 38, and the heat dissipation fans 381 are used to dissipate heat from the display module 35 and the functional modules mounted in the mounting space 342.
The full-closed display unit has the beneficial effects that:
the fully-closed display unit is provided with the channel on the mounting frame, and the channel has multiple functions: the channel is used for accommodating the driving plate of the display glass, and the tightness of the display unit is not affected; the arrangement of the channel enables the display module to be installed on the inner side surface of the installation strip, so that the display unit can be light and thin; the channel has a protective effect on the driving plate, can avoid the erosion of harmful substances and water vapor, and can also shield electromagnetic interference; the channel is used as an air channel for ventilation and heat dissipation, and provides internal circulation airflow for the display unit to dissipate heat.
In the fully-closed structural design, although the components are connected by using the connecting screw, the isolating groove is arranged at the connecting screw, so that the connecting screw can be prevented from damaging the tightness by the isolating groove, and the tightness of the display unit is ensured. The tightness provides a high-cleanliness working environment for the display module in the display unit, and can improve the display effect and the service life of the display module.
The present invention has been described in detail with reference to the embodiments of the drawings, and those skilled in the art can make various modifications to the invention based on the above description. Accordingly, certain details of the illustrated embodiments are not to be taken as limiting the invention, which is defined by the appended claims.

Claims (10)

1. A fully enclosed display unit comprising:
the mounting frame is formed by enclosing and splicing a plurality of mounting strips, two adjacent mounting strips are connected in a sealing manner, a front side opening and a rear side opening are formed in the mounting frame, and a mounting structure is arranged on the inner side surface of the mounting frame;
the backboard is arranged at the rear side opening and is in sealing connection with the mounting frame;
the protective glass is arranged at the front side opening and is in sealing connection with the mounting frame, and a closed space is formed among the protective glass, the mounting frame and the back plate; and
and the display module is arranged on the mounting frame through the mounting structure.
2. The fully-enclosed display unit according to claim 1, wherein the mounting bar is provided with a channel for accommodating a driving plate of the display module near the front opening.
3. The fully-enclosed display unit according to claim 2, wherein a first space is formed between the display module and the back plate, and the driving plate penetrates into the first space from the channel.
4. The fully-enclosed display unit according to claim 2, wherein a first space is formed between the display module and the back plate, a communication port communicated with the first space is formed on the channel, and a fan for supplying air into the channel is arranged at the communication port.
5. The fully enclosed display unit of claim 4 wherein the channels between adjacent mounting bars are in communication to form a communicating air duct within the mounting frame, the fan forming a circulating air flow within the air duct.
6. The fully-enclosed display unit according to claim 4, wherein a second space is formed between the display module and the cover glass, a vent communicated with the second space is formed on the channel, and the fan forms a circulating air flow among the channel, the second space and the first space.
7. The fully enclosed display unit according to claim 1, wherein the front opening on the mounting frame is further formed with:
a first mounting table relatively far from the back plate for mounting the protective glass;
the second mounting table is relatively close to the backboard and is used for mounting the liquid crystal panel of the display module;
an OCA film disposed between the cover glass and the liquid crystal panel; and
and the pressure screen strip is used for externally pressing and fixing the protective glass on the first mounting surface.
8. The fully-closed display unit according to claim 1, wherein the periphery of the protective glass is in sealing connection with the mounting frame through a pressure screen strip, a sealing strip is clamped between the protective glass and the pressure screen strip, the pressure screen strip is in fastening connection with the outer side surface of the mounting frame through a connecting screw, a separation groove is formed in the mounting strip of the mounting frame corresponding to the connecting screw, and the sealing space is separated from the connecting screw through the separation groove.
9. The fully-enclosed display unit according to claim 1, wherein the back plate is formed by splicing a plurality of back plate units, the end parts of the back plate units are provided with splicing parts, two adjacent back plate units are butted by the splicing parts and are further fastened and connected by connecting screws, one splicing part of the two adjacent back plate units is provided with an isolation groove in the enclosed space corresponding to the connecting screws, and the enclosed space and the connecting screws are isolated by the isolation groove.
10. The fully-enclosed display unit according to claim 1, wherein a first space is formed between the display module and the back plate, a fan bracket is installed in the first space, and a plurality of heat dissipation fans are installed on the fan bracket.
CN201611270088.4A 2016-12-29 2016-12-29 Full-closed display unit Active CN106773212B (en)

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Publication number Priority date Publication date Assignee Title
WO2018119888A1 (en) * 2016-12-29 2018-07-05 上海启钧电子有限公司 Multifunctional channel for use in display unit
WO2018119887A1 (en) * 2016-12-29 2018-07-05 上海启钧电子有限公司 Fully sealed display unit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1525810A (en) * 2003-01-31 2004-09-01 ��ʽ���綫֥ Electronic apparatus having heat-generating components to be cooled with liquid coolant
CN104020591A (en) * 2014-06-18 2014-09-03 上海启钧电子有限公司 Display module structure and installing method thereof
CN104678636A (en) * 2015-03-27 2015-06-03 上海启钧电子有限公司 Radiating structure of display module
CN204372862U (en) * 2015-02-06 2015-06-03 上海启钧电子有限公司 The heat dissipation lamp plate structure of display module
JP2016128875A (en) * 2015-01-09 2016-07-14 キヤノン株式会社 Display device
WO2016183772A1 (en) * 2015-05-18 2016-11-24 上海启钧电子有限公司 Integrated double-sided display module structure
CN206311868U (en) * 2016-12-29 2017-07-07 上海启钧电子有限公司 Totally-enclosed display unit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1525810A (en) * 2003-01-31 2004-09-01 ��ʽ���綫֥ Electronic apparatus having heat-generating components to be cooled with liquid coolant
CN104020591A (en) * 2014-06-18 2014-09-03 上海启钧电子有限公司 Display module structure and installing method thereof
JP2016128875A (en) * 2015-01-09 2016-07-14 キヤノン株式会社 Display device
CN204372862U (en) * 2015-02-06 2015-06-03 上海启钧电子有限公司 The heat dissipation lamp plate structure of display module
CN104678636A (en) * 2015-03-27 2015-06-03 上海启钧电子有限公司 Radiating structure of display module
WO2016183772A1 (en) * 2015-05-18 2016-11-24 上海启钧电子有限公司 Integrated double-sided display module structure
CN206311868U (en) * 2016-12-29 2017-07-07 上海启钧电子有限公司 Totally-enclosed display unit

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