CN107643635A - Display device and grounding device thereof - Google Patents
Display device and grounding device thereof Download PDFInfo
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- CN107643635A CN107643635A CN201710892047.7A CN201710892047A CN107643635A CN 107643635 A CN107643635 A CN 107643635A CN 201710892047 A CN201710892047 A CN 201710892047A CN 107643635 A CN107643635 A CN 107643635A
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- printed circuit
- circuit board
- pcb
- conducting film
- protective layer
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- 239000011241 protective layer Substances 0.000 claims abstract description 59
- 239000002184 metal Substances 0.000 claims abstract description 57
- 229910052751 metal Inorganic materials 0.000 claims abstract description 57
- 230000004888 barrier function Effects 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 37
- 238000009413 insulation Methods 0.000 claims description 31
- 230000008520 organization Effects 0.000 claims description 22
- 239000004020 conductor Substances 0.000 claims description 7
- 238000005538 encapsulation Methods 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 abstract description 2
- 239000012811 non-conductive material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000004973 liquid crystal related substance Substances 0.000 description 8
- 239000010410 layer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- 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
- G02F1/1345—Conductors connecting electrodes to cell terminals
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention provides a display device and a grounding device thereof, wherein the display device comprises: a display panel; a frame made of a non-conductive material, on which the display panel is disposed; a metal frame enclosing the frame therein and forming a hollow area accommodating the display panel; a printed circuit board disposed below the frame without contacting the metal side frame and electrically connected to the display panel through a flexible flat cable; a conductive film attached to and electrically connected with the grounding end of the printed circuit board and the metal frame; and a protective layer made of an insulating material and serving as an electrical barrier. In addition, the surface of the surface insulated cable is covered with a protective layer and is not connected with the protective layer covering the printed circuit board; the tail end of the flexible flat cable is provided with an insulating connecting part, and the insulating connecting part is provided with an insulating shell and a port structure; the printed circuit board is provided with a port connector corresponding to the port structure, and the port connector is inserted into the port structure to electrically connect the printed circuit board with the surface insulated cable.
Description
Technical field
The present embodiments relate to display technology field, in particular to display device and its earthing or grounding means.
Background technology
Liquid crystal display device is that current city accounts for rate highest Display Types, its light, thin, power saving and be easy to miniaturization it is excellent
Point, make to be seen everywhere its trace in daily life, such as mobile phone, notebook computer, numeric type Video Camera, tablet PC
It is to use liquid crystal display device mostly Deng product.Now, utilization rate highest liquid crystal display device is to belong to film transistor type
Display device (TFT-LCD).
The technologies such as liquid crystal display device and plasma display panel (PDP), organic light emitting diode display (OLED) are different, are
Belong to the display of non-spontaneous light type, it is necessary to additionally set backlight.Meanwhile by the drive circuit in display device, by spy
Fixed signal is changed and exports and switch voltage, the Liquid Crystal Molecules Alignment direction of display panel is produced change.Above-mentioned backlight
Caused light forms picture element by above-mentioned panel, and forms the picture shown by the light transmittance height of every pixel.
According to the displaying principle of above-mentioned display device, extraneous noise, electric charge or electric field change are very easily to liquid crystal point
The arrangement of son produces interference, the image of display exception is occurred.Therefore, to prevent above-mentioned interference, it is necessary to set drive circuit
Printed circuit board (PCB) must completely cut off ectocine, and try during isolation the electricity do not accumulated in itself because that can not exclude printed circuit board (PCB)
Lotus and then interference is produced to the signal of self transmission.
In the prior art, the partial solution tackled above mentioned problem and proposed.Prior art as shown in Figure 1
In, typical display device 10 includes metal outer frame 100, framework 200, display panel 300 and printed circuit board (PCB) 400.Display surface
Plate 300 is arranged on the upper surface of framework 200, and printed circuit board (PCB) 400 is arranged on the lower surface of framework 200.Display panel 300 and
Framework 200 is electrically connected with by pliability flat cable 510.Metal outer frame 100 is from top to bottom linked in the outside of glue frame 200,
And with the hollow region of exposure display panel 300.
For prevent the above-mentioned stored charge of printed circuit board (PCB) 400 institute there may be the problem of, as shown in Fig. 2 in printed circuit
The side of the contiguous metal housing 100 of plate 400 sets ground terminal 430, and ground terminal 430 is to be fixed on frame by screw 435
On frame 200.Meanwhile grounding elastic part 440 is set ground terminal 430 is electrically connected to metal outer frame 100.Wherein grounding elastic part
440 be to be fixed on by another screw (being not presented in accompanying drawing) in metal outer frame 100.Pass through above-mentioned setting, printed circuit board (PCB)
The electric charge accumulated on 400 can be transferred to metal outer frame 100 by grounding elastic part and is discharged into external environment.
However, metal outer frame is to be connected on display panel in such scheme simultaneously, the electric charge of accumulation still has very big chance
Interference is produced and then the arrangement to liquid crystal molecule by the contact with display panel, therefore, still has and waits improved space.
The content of the invention
Technical problems to be solved of the embodiment of the present invention are to provide a kind of display device, aobvious to avoid stored charge from influenceing
Show quality.
The further technical problems to be solved of the embodiment of the present invention are to provide a kind of earthing or grounding means of display device, to keep away
Exempting from stored charge influences display quality.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of display device first, including：
Display panel；
Framework, it is made up of non-conducting material, and the display panel is arranged on the framework；
Metal frame, by the framework encapsulation in wherein, and form the hollow region for accommodating the display panel；
Printed circuit board (PCB), it is arranged on below the framework and does not contact the metal frame, and it is electrical by surface insulation cable
It is connected to the display panel；
Conducting film, attach and be electrically connected with the earth terminal of the printed circuit board (PCB) and the metal frame；And
Protective layer, it is made up of Ins. ulative material, covers on the printed circuit board and the print is attached to by adhesion material
The periphery of printed circuit board, with the fixation printed circuit board (PCB), as electrical barrier；
Wherein, the surface of the surface insulation cable covers the protective layer, and covers the guarantor of the surface insulation cable
Sheath is not attached to covering the protective layer on the printed circuit board (PCB)；
Wherein, the tail end of the pliability flat cable has insulating properties connecting portion, and the insulating properties connecting portion has insulating properties
Shell and port organization；
Wherein, the printed circuit board (PCB) is with more the port connectors for corresponding to the port organization, by the way that the port is connected
Part inserts the port organization, the printed circuit board (PCB) is electrically connected with the surface insulation cable.
Alternatively, the earth terminal is provided in the lower surface of the printed circuit board (PCB) or from the side of the printed circuit board (PCB)
Edge extends to side.
Alternatively, when there is the conducting film one side to paste property, the protective layer is attached and covered by adhesion material
The conducting film.
Alternatively, when the conducting film have it is two-sided paste property, the protective layer is sticked directly on the conducting film
To cover the conducting film.
Alternatively, attaching has the two-sided conducting film for pasting property on the periphery of the printed circuit board (PCB) to be used as institute
Adhesion material is stated, by the protective layer by being covered with the two-sided conducting film for pasting property and attaching the printed circuit
Plate.
On the other hand, the embodiment of the present invention also provides a kind of earthing or grounding means of display device, including：
Metal frame, by the framework encapsulation that the display device has in wherein, and formed accommodate the display device have it is aobvious
Show the hollow region of panel；
Earth terminal, it is arranged at the lower surface of the printed circuit board (PCB) or extends from the edge of the printed circuit board (PCB) to side；
Conducting film, attach and be electrically connected with the earth terminal of the printed circuit board (PCB) and the metal frame；And
Protective layer, it is made up of Ins. ulative material, covers on the printed circuit board and the print is attached to by adhesion material
The periphery of printed circuit board, with the fixation printed circuit board (PCB), as electrical barrier；
Wherein, the printed circuit board (PCB) is electrically connected with by surface insulation cable and the display panel；
Wherein, the surface of the surface insulation cable covers the protective layer, and covers the guarantor of the surface insulation cable
Sheath is not attached to covering the protective layer on the printed circuit board (PCB)；
Wherein, the tail end of the pliability flat cable has insulating properties connecting portion, and the insulating properties connecting portion has insulating properties
Shell and port organization；
Wherein, the printed circuit board (PCB) is with more the port connectors for corresponding to the port organization, by the way that the port is connected
Part inserts the port organization, the printed circuit board (PCB) is electrically connected with the surface insulation cable.
Alternatively, when there is the conducting film one side to paste property, the protective layer is attached and covered by adhesion material
The conducting film.
Alternatively, when the conducting film have it is two-sided paste property, the protective layer is sticked directly on the conducting film
To cover the conducting film.
Alternatively, attaching has the two-sided conducting film for pasting property on the periphery of the printed circuit board (PCB) to be used as institute
Adhesion material is stated, by the protective layer by being covered with the two-sided conducting film for pasting property and attaching the printed circuit
Plate.
Another aspect, the embodiment of the present invention also provide a kind of display device, including：
Display panel；
Framework, it is made up of non-conducting material, and the display panel is arranged on the framework；
Metal frame, by the framework encapsulation in wherein, and form the hollow region for accommodating the display panel；
Printed circuit board (PCB), it is arranged on below the framework and does not contact the metal frame, and it is electrical by surface insulation cable
It is connected to the display panel；
Conducting film, attach and be electrically connected with the earth terminal of the printed circuit board (PCB) and the metal frame；And
Protective layer, it is made up of Ins. ulative material, covers on the printed circuit board and the print is attached to by adhesion material
The periphery of printed circuit board, with the fixation printed circuit board (PCB), as electrical barrier；
Wherein, the surface of the surface insulation cable covers the protective layer, and covers the guarantor of the surface insulation cable
Sheath is not attached to covering the protective layer on the printed circuit board (PCB)；
Wherein, the tail end of the pliability flat cable has insulating properties connecting portion, and the insulating properties connecting portion has insulating properties
Shell and port organization；
Wherein, the printed circuit board (PCB) is with more the port connectors for corresponding to the port organization, by the way that the port is connected
Part inserts the port organization, the printed circuit board (PCB) is electrically connected with the surface insulation cable；
Wherein, the earth terminal is provided in the lower surface of the printed circuit board (PCB) or from the edge of the printed circuit board (PCB) to side
Side extends；
Wherein, when there is the conducting film one side to paste property, the protective layer is attached by adhesion material and covers described lead
Electrolemma；
Wherein, when the conducting film have it is two-sided paste property, the conducting film be attached to the periphery of the printed circuit board (PCB) with
As the adhesion material, and by the protective layer by covering with the two-sided conducting film for pasting property and directly attaching
The printed circuit board (PCB).
By using above-mentioned technical proposal, the embodiment of the present invention at least has the advantages that：The embodiment of the present invention carries
The liquid crystal display and its earthing or grounding means of confession, improve the knot that prior art is formed using components such as screw, grounding elastic parts
Structure, the space that those components occupy is saved, display device is more attained lightly.In addition, the insulating properties connecting portion set up, can strengthen
Soundness between cable and printed circuit board (PCB), lift the service life of display device.Wherein, rigidity can be used in insulating properties shell
The Ins. ulative material higher compared with protective layer, and then protect relatively fragile junction, with avoid in manufacture collision or other because
Come off or damage caused by element.Further, since protective layer is not required to extend over surface insulation cable, it is more simple in manufacture.
Brief description of the drawings
By referring to accompanying drawing detailed description exemplary embodiment, above and other feature and advantage are to people in the art
Member will become apparent.In addition, the size of depicted each inter-module and set location are all with order to detailed in accompanying drawing
Relation therebetween is explained, and is not intended to limit the size and location relation of such component.
Fig. 1 is the schematic diagram that the circuit board of display device of the prior art is grounded by metal outer frame.
Fig. 2 is the polycrystalline substance schematic diagram of the display device shown in corresponding diagram 1.
Fig. 3 A are the part-structure schematic diagram of the display device of one embodiment of the invention and the wherein inside of dashed region
Structural representation.
Fig. 3 B and Fig. 3 C are the partial structural diagrams of the display device of one embodiment of the invention.
Fig. 3 D are the bottom partial structural diagrams of the display device of one embodiment of the invention.
Fig. 4 A and Fig. 4 B are the bottom partial structural diagrams of the display device of one embodiment of the invention.
Fig. 4 C are the bottom partial structurtes side views of the display device of one embodiment of the invention.
Fig. 4 D are the bottom partial structural diagrams of the display device of one embodiment of the invention.
Fig. 4 E are the bottom partial structurtes side views of the display device of one embodiment of the invention.
Fig. 5 is the bottom partial structurtes side view of the display device of one embodiment of the invention.
Fig. 6 is the partial structural diagram of the display device of one embodiment of the invention.
Fig. 7 is the bottom partial structurtes side view of the display device of one embodiment of the invention.
Fig. 8 A and Fig. 8 B are the partial structural diagrams of the display device of another embodiment of the present invention.
Embodiment
Illustrative embodiments are more fully described hereinafter with reference to accompanying drawing；However, they can embody simultaneously in different forms
It is not construed as being limited to embodiment described in text.On the contrary, these embodiments are provided so that the disclosure is thorough and complete,
And it will intactly convey the scope of the invention to those skilled in the art.
In the description of the present application, it is to be understood that the instruction such as term " on ", " under ", "left", "right", " interior ", " outer "
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description the application and simplification retouched
State, rather than imply signified device or component there must be a specific orientation, therefore it is not intended that limitation to the application.
, it is necessary to illustrate in the description of the present application, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electric connection；Can be joined directly together, can also be indirectly connected by intermediary.Term
" attaching ", " pasting " should be interpreted broadly, for example, it may be part attach, can be completely it is closely sealed attaching or it is removable
Attaching unloaded etc..For the ordinary skill in the art, it can understand above-mentioned term in this application with concrete condition
Concrete meaning.
As shown in Figure 3A, the embodiment of the present invention provides a kind of display device 900, has display panel 130.Display panel
130 are arranged on framework 110, and alternatively, framework 110 can be any non-conducting material institute structure that can be supported without producing deformation
Into, but not limited to this.Metal side frame 101 is arranged in four side walls of framework 110, and metal side frame 101 can be directly anchored to frame
In four side walls of frame 110, or can between framework 110 indwelling space for setting All other routes or component.Stayed above-mentioned
Under situation between being empty, relative position that metal side frame 101 can be fixed between framework 110 by other means.Protect top side
Frame 102 is arranged on the top of framework 110 and display panel 130, alternatively, top side protecting frame 102 can be any can support and
The non-conducting material for not producing deformation is formed, but not limited to this.Top side protecting frame 102 has hollow region, aobvious to exposure
Show panel 130.The area of above-mentioned hollow region is less than display panel 130, therefore, when top side protecting frame 102 is arranged on framework 110
And display panel 130 top when, can more lift the steadiness that display panel is fixed on framework 110.Top side protecting frame 102
It can be fixed in any suitable manner on framework 110, such as：Top side protecting frame 102 directly can stick together frame using adhesion material
Frame 110, or top side protecting frame 102 and metal side frame 101 can have corresponding connection component, make setting top side protecting frame
The relative position of top side protecting frame 102 and metal side frame 101 can be fixed when 102 by above-mentioned connection component, is further fixed
To framework 110, but method is not limited to above-mentioned carried.
Or the integrally formed substituted metal side frame 101 of metal frame 103 and top can be used as shown in Fig. 1 prior art
Side protecting frame 102.Below will with metal frame 103 is set rather than metal side frame 101 and top side protecting frame 102 are set as an example,
But the actual upper not limited to this of implementation.
Printed circuit board (PCB) 150 is arranged on the lower section of framework 110, such as：The lower section of framework 110 or excision frame can be set directly at
The section bottom of frame 110, printed circuit board (PCB) 150 is set partly to be embedded in framework 110.Printed circuit board (PCB) 150 can not connect when setting
Touch metal frame 103.Printed circuit board (PCB) 150 can by pliability flat cable 151 by show image required for signal transmit to
Display panel 130.As shown in Figure 3A, pliability flat cable 151 can pass through metal frame 103 and frame along the surface of framework 110
Indwelling space between frame 110 is electrically connected to display panel 130.Or also can be as shown in Fig. 3 B and Fig. 3 C, by framework
Vertically oriented aperture there-through 120 is set in 110, pliability flat cable 151 is electrically connected to display by above-mentioned through hole 120
Panel 130.
Compared to making pliability flat cable 151 be externally attached to display panel 130 along framework 110, by through hole 120 by
Lower portion is connected to display panel 130, and because framework 110 itself is Ins. ulative material, the inwall of through hole 120 also can be exhausted
Edge material, the signal that possibility flat cable 510 transmits can be made to be less susceptible to interference.If via the outside of framework 110
Connection, alternatively needs to set up protective layer 170 as described later in its surface, is interfered with preventing signal.
As shown in Figure 3 D, printed circuit board (PCB) 150 can have earth terminal 153, and alternatively, earth terminal 153 is settable from printing
The edge of circuit board 150 stretches out, but pliability flat cable 151 of getting along well is arranged on same edge in order to avoid contacting accidentally.It is aobvious
Showing device 900 further includes conducting film 160.Conducting film 160 can be electrically connected with the earth terminal 153 and metal frame of printed circuit board (PCB) 150
103, the electric charge for making to accumulate on printed circuit board (PCB) 150 can be moved to metal frame 103 by conducting film 160, then discharge to external rings
Border.Conducting film 160 can be by tackness material attachment in printed circuit board (PCB) 150 and metal frame 103.Alternatively, conducting film 160 is
Property or the two-sided conductive tape for pasting property are pasted with one side.The material of conducting film 160 can be such as aluminium foil, copper foil, lead
Electrical macromolecule etc., but not limited to this.
Except above-mentioned setting, as shown in Figure 4 A, several earth terminals 153 can be set, to improve earthing effect.The present invention's
In another embodiment, several earth terminals 153 can be separately positioned on the same edge of printed circuit board (PCB) 150, or be separately positioned on
Different edges, but pliability flat cable 151 of getting along well is arranged on same edge in order to avoid contacting accidentally.Several earth terminals are being set
In the case of 153, conducting film 160 can be divided into some fragments, and several earth terminals 153 are electrically connected into metal frame 103 respectively.
Display device 900 also includes protective layer 170, and protective layer 170 can be made up of Ins. ulative material.As shown in Figure 4 B, when
When conducting film 160 is the conductive tape that there is one side to paste property, protective layer 170 can be covered on printed circuit board (PCB) 150, and
The periphery of printed circuit board (PCB) 150 and the periphery of conducting film 160 are attached to by adhesion layer 180, with fixing printed circuit plate 150 and
Conducting film 160.Meanwhile protective layer 170 can as electrical barrier by the circuit on printed circuit board (PCB) 150 and component with it is extraneous every
Absolutely, avoid the factor interference signal of external environment condition and cause to show results abnormity.The side schematic view of said structure such as Fig. 4 C institutes
Show.Protective layer 170 may be further extended and cover pliability flat cable 151, using as electrical barrier avoid external environment condition because
Element interference.Further, while protective layer 170 covers possibility flat cable 151, can be fixed by tackness material can
Flexible flat cable 151.
In the display device provided by above embodiments of the invention, and those embodiments by printed circuit board (PCB),
The earthing or grounding means that combination between metal frame, conducting film and protective layer is formed can be effectively improved earthing or grounding means of the prior art
Problem.In the prior art, set grounding elastic part earth terminal is electrically connected to metal frame more.In comparison, present invention contact is aobvious
Show that the part of panel 130 only has the framework 110 and top side protecting frame 102 of non-conducting material, therefore be transferred to by conducting film 160
The electric charge of metal side frame 101 does not interfere with display panel 130, and does not also interfere with electric charge and be discharged into by metal side frame 101
The effect of external environment condition.In addition, using the structure for substituting screw and grounding elastic part with the conducting film 160 for pasting property, can subtract
Several steps in few manufacturing process, can more save the space that screw and grounding elastic part account for, and then produce more frivolous show
Showing device.On the other hand, the through hole 120 that is set in framework 110 of the present invention can be not set up protective layer 170 flat in pliability
Prevent signal in the case of on cable 151 to be interfered, though the step of through hole is set, framework are added in the fabrication process
Material of 110 through hole 120 itself should have more protective effect compared to protective layer 170 is set up in addition.
Than the above described, can also be optimized according to actual state and demand for wherein several components, more
Add enhancing advantages of the present invention, will hereafter be illustrated with different embodiments.
In one embodiment, optimize for conducting film 160, taken using with the two-sided conducting film 160 for pasting property
In generation, pastes the conducting film 160 of property with one side, and remaining setting is identical with previous embodiment.As shown in Figure 4 D, when conducting film 160
Be have it is two-sided paste property conductive tape when, in addition to conducting film 160 is electrically connected with into earth terminal 153 and metal frame 103,
Conducting film 160 can be also pasted around printed circuit board (PCB) 150.Then, property is pasted by the exposed surface of conducting film 160,
Protective layer 170 is pasted on printed circuit board (PCB) 150, earth terminal 153 and metal frame 103.Property is pasted compared to one side
Conducting film 160, the function of adhesion layer 180 is substituted using the conducting film 160 for pasting property with two-sided, adhesion layer can be saved
180 thickness, the step of adhesion layer 180 are set can be more saved in the manufacturing process for manufacturing display device.The side of said structure
Face schematic diagram is as shown in Figure 4 E.
In another embodiment, optimized for earth terminal 153, earth terminal 153 is arranged on printed circuit board (PCB) 150
Lower surface, rather than by extending on the outside of the edge item of printed circuit board (PCB), remaining setting is identical with previous embodiment.As shown in figure 5, by
It is conductive tape in conducting film 160, there is a certain degree of pliability, therefore earth terminal is arranged on printed circuit board (PCB) 150
Lower surface, the setting of conducting film 160 and protective layer 170 is not influenceed.This method to set up can reduce the manufacture difficulty of earth terminal 153.
In another embodiment, carried out for printed circuit board (PCB) 150, pliability flat cable 151 and protective layer 170 excellent
Change, and set up insulating properties connecting portion 155, remaining setting is identical with previous embodiment.As shown in fig. 6, using surface to cover in advance
The pliability flat cable substitution pliability flat cable 151 of lid and the identical insulating materials of protective layer 170, and be defined as
Surface insulation cable 1511.Insulation is set up in the tail end of surface insulation cable 1511, that is, with the junction of printed circuit board (PCB) 150
Property connecting portion 155.Insulating properties connecting portion 155 has insulating properties shell and fixable port organization, so that other assemblies and table
Face insulated cable 1511 is electrically connected with.In addition, the printed circuit board (PCB) using the port connectors with corresponding above-mentioned port organization
1501 substitution printed circuit board (PCB)s 150, port connectors insertion port organization is electrically connected with printed circuit board (PCB) 1501 and surface is exhausted
Edge cable 1511.Thereafter, when setting protective layer 170, protective layer 170 only needs to be arranged at printed circuit board (PCB) 1501 and conducting film
On 160, without extending to cover surface insulation cable 1511.Because the surface of surface insulation cable 1511 is that insulating properties is protected
Protective material, therefore it is not easily susceptible to other interference.The insulating properties connecting portion 155 set up, can strengthen between cable and printed circuit board (PCB)
Soundness, lift the service life of display device.Wherein, insulating properties shell can be used rigidity higher compared with protective layer 170 exhausted
Edge material, and then protect relatively fragile junction, come off or damage caused by avoid in manufacture collision or other factors
Wound.Further, since protective layer 170 is not required to extend over surface insulation cable, it is more simple in manufacture.
In another embodiment, the earth terminal 153 that can be directed to printed circuit board (PCB) 150 is optimized, and earth terminal 153 is set
The border of prominent framework 110 is extended at the edge of printed circuit board (PCB) 150 and laterally, remaining is set and previous embodiment phase
Together.As shown in fig. 7, earth terminal 153 extends simultaneously directly the four of contacting metal frame 103 on the outside of the edge picture of printed circuit board (PCB) 150
The bottom of at least side of individual side.In this case, the electric charge that printed circuit board (PCB) 150 is accumulated can be directly via earth terminal 153
Metal frame 103 is moved to, conducting film 160 is set without extra.Earth terminal 153 and metal frame 103 can by adhesion material, such as
The metalworks such as screw or any existing method are fixed and keep being electrically connected with.Or metal frame 103 can have can fit earth terminal
153 slot, fix so that earth terminal 153 is inserted directly into slot, and then be electrically connected with metal frame 103.Or earth terminal
153 can be electrically connected with by conductive adhesion material and be fixed on the slot of the metal frame 103；Or connect
Ground terminal 153 can be electrically connected with by port organization and be fixed on the slot of the metal frame 103；Or earth terminal 153 can
By screw metalwork runs through and is electrically connected with and the slot of metal frame 103 as described in being fixed on.Alternatively, printed circuit
The part that plate 150 protrudes framework 110 is only free of other circuits comprising earth terminal 153.Really earth terminal 153 and metal frame are made
After 103 are electrically connected with, protective layer 170 is set up by bottom side and is used as electrical barrier.
In another embodiment, the knot of printed circuit board (PCB) 150, pliability flat cable 151 and above-mentioned through hole 120 can be directed to
Structure optimizes.As shown in Fig. 8 A and Fig. 8 B, conductive part 190 is set in the rear side of printed circuit board (PCB) 150, that is, towards frame
The side of frame 110.In addition, the opening of through hole 120 towards printed circuit board (PCB) 150 is arranged into given shape, alternatively, this is specific
Shape is agreed with conductive part 190.When setting printed circuit board (PCB) 150 in the lower surface of framework 110, it is fixed on conductive part 190
In through hole, and pliability flat cable 151 is directly by conductive part 190 and through through hole 120 so that printed circuit board (PCB) 150 and aobvious
Show that panel 130 is electrically connected with.In this case, the junction of printed circuit board (PCB) 150 and pliability flat cable 151 is completely disposed in
In through hole 120, it is not required to additionally rely on protective layer 170 and external insulation.Wherein, display panel may be, for example, LCD display panel,
OLED display panel, QLED display panels, curved face display panel or other display panels.
What said above is only that alternatively embodiment describes in detail according to the present invention, the right being not intended to limit the present invention
Scope.Relevant art has usually intellectual and all should be understood that under the technical principle and spirit without prejudice to the present invention, can
Above-described embodiment is modified and changed.Therefore the interest field of the present invention should be as described in appended claims.
Claims (10)
- A kind of 1. display device, it is characterised in that including：Display panel；Framework, it is made up of non-conducting material, and the display panel is arranged on the framework；Metal frame, by the framework encapsulation in wherein, and form the hollow region for accommodating the display panel；Printed circuit board (PCB), it is arranged on below the framework and does not contact the metal frame, and it is electrical by surface insulation cable It is connected to the display panel；Conducting film, attach and be electrically connected with the earth terminal of the printed circuit board (PCB) and the metal frame；AndProtective layer, it is made up of Ins. ulative material, covers on the printed circuit board and the print is attached to by adhesion material The periphery of printed circuit board, with the fixation printed circuit board (PCB), as electrical barrier；Wherein, the surface of the surface insulation cable covers the protective layer, and covers the guarantor of the surface insulation cable Sheath is not attached to covering the protective layer on the printed circuit board (PCB)；Wherein, the tail end of the pliability flat cable has insulating properties connecting portion, and the insulating properties connecting portion has insulating properties Shell and port organization；Wherein, the printed circuit board (PCB) is with more the port connectors for corresponding to the port organization, by the way that the port is connected Part inserts the port organization, the printed circuit board (PCB) is electrically connected with the surface insulation cable.
- 2. display device as claimed in claim 1, it is characterised in that the earth terminal is provided in the printed circuit board (PCB) Lower surface extends from the edge of the printed circuit board (PCB) to side.
- 3. display device as claimed in claim 1, it is characterised in that described when there is the conducting film one side to paste property Protective layer is attached by adhesion material and covers the conducting film.
- 4. display device as claimed in claim 1, it is characterised in that when the conducting film have it is two-sided paste property, it is described Protective layer is sticked directly on the conducting film to cover the conducting film.
- 5. display device as claimed in claim 4, it is characterised in that attaching, there is the two-sided conducting film for pasting property to exist The periphery of the printed circuit board (PCB) is using as the adhesion material, by the protective layer by being pasted with two-sided described in property Conducting film covers and attaches the printed circuit board (PCB).
- A kind of 6. earthing or grounding means of display device, it is characterised in that including：Metal frame, by the framework encapsulation that the display device has in wherein, and formed accommodate the display device have it is aobvious Show the hollow region of panel；Earth terminal, it is arranged at the lower surface of the printed circuit board (PCB) or extends from the edge of the printed circuit board (PCB) to side；Conducting film, attach and be electrically connected with the earth terminal of the printed circuit board (PCB) and the metal frame；AndProtective layer, it is made up of Ins. ulative material, covers on the printed circuit board and the print is attached to by adhesion material The periphery of printed circuit board, with the fixation printed circuit board (PCB), as electrical barrier；Wherein, the printed circuit board (PCB) is electrically connected with by surface insulation cable and the display panel；Wherein, the surface of the surface insulation cable covers the protective layer, and covers the guarantor of the surface insulation cable Sheath is not attached to covering the protective layer on the printed circuit board (PCB)；Wherein, the tail end of the pliability flat cable has insulating properties connecting portion, and the insulating properties connecting portion has insulating properties Shell and port organization；Wherein, the printed circuit board (PCB) is with more the port connectors for corresponding to the port organization, by the way that the port is connected Part inserts the port organization, the printed circuit board (PCB) is electrically connected with the surface insulation cable.
- 7. earthing or grounding means as claimed in claim 6, it is characterised in that described when there is the conducting film one side to paste property Protective layer is attached by adhesion material and covers the conducting film.
- 8. earthing or grounding means as claimed in claim 6, it is characterised in that when the conducting film have it is two-sided paste property, it is described Protective layer is sticked directly on the conducting film to cover the conducting film.
- 9. earthing or grounding means as claimed in claim 8, it is characterised in that attaching, there is the two-sided conducting film for pasting property to exist The periphery of the printed circuit board (PCB) is using as the adhesion material, by the protective layer by being pasted with two-sided described in property Conducting film covers and attaches the printed circuit board (PCB).
- A kind of 10. display device, it is characterised in that including：Display panel；Framework, it is made up of non-conducting material, and the display panel is arranged on the framework；Metal frame, by the framework encapsulation in wherein, and form the hollow region for accommodating the display panel；Printed circuit board (PCB), it is arranged on below the framework and does not contact the metal frame, and it is electrical by surface insulation cable It is connected to the display panel；Conducting film, attach and be electrically connected with the earth terminal of the printed circuit board (PCB) and the metal frame；AndProtective layer, it is made up of Ins. ulative material, covers on the printed circuit board and the print is attached to by adhesion material The periphery of printed circuit board, with the fixation printed circuit board (PCB), as electrical barrier；Wherein, the surface of the surface insulation cable covers the protective layer, and covers the guarantor of the surface insulation cable Sheath is not attached to covering the protective layer on the printed circuit board (PCB)；Wherein, the tail end of the pliability flat cable has insulating properties connecting portion, and the insulating properties connecting portion has insulating properties Shell and port organization；Wherein, the printed circuit board (PCB) is with more the port connectors for corresponding to the port organization, by the way that the port is connected Part inserts the port organization, the printed circuit board (PCB) is electrically connected with the surface insulation cable；Wherein, the earth terminal is provided in the lower surface of the printed circuit board (PCB) or from the edge of the printed circuit board (PCB) to side Side extends；Wherein, when there is the conducting film one side to paste property, the protective layer is attached by adhesion material and covers described lead Electrolemma；Wherein, when the conducting film have it is two-sided paste property, the conducting film be attached to the periphery of the printed circuit board (PCB) with As the adhesion material, and by the protective layer by covering with the two-sided conducting film for pasting property and directly attaching The printed circuit board (PCB).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710892047.7A CN107643635B (en) | 2017-09-27 | 2017-09-27 | Display device and grounding device thereof |
| PCT/CN2018/107578 WO2019062753A1 (en) | 2017-09-27 | 2018-09-26 | Display device, manufacturing method therefor, and grounding device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710892047.7A CN107643635B (en) | 2017-09-27 | 2017-09-27 | Display device and grounding device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107643635A true CN107643635A (en) | 2018-01-30 |
| CN107643635B CN107643635B (en) | 2023-10-20 |
Family
ID=61114087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710892047.7A Active CN107643635B (en) | 2017-09-27 | 2017-09-27 | Display device and grounding device thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107643635B (en) |
| WO (1) | WO2019062753A1 (en) |
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| CN108799937A (en) * | 2018-06-28 | 2018-11-13 | 武汉华星光电技术有限公司 | A kind of backlight module and display panel |
| WO2019062753A1 (en) * | 2017-09-27 | 2019-04-04 | 惠科股份有限公司 | Display device, manufacturing method therefor, and grounding device thereof |
| CN113570969A (en) * | 2021-07-23 | 2021-10-29 | 惠科股份有限公司 | Display device |
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Also Published As
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| CN107643635B (en) | 2023-10-20 |
| WO2019062753A1 (en) | 2019-04-04 |
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