WO2023005337A1 - 防静电液晶显示器 - Google Patents

防静电液晶显示器 Download PDF

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Publication number
WO2023005337A1
WO2023005337A1 PCT/CN2022/092071 CN2022092071W WO2023005337A1 WO 2023005337 A1 WO2023005337 A1 WO 2023005337A1 CN 2022092071 W CN2022092071 W CN 2022092071W WO 2023005337 A1 WO2023005337 A1 WO 2023005337A1
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WIPO (PCT)
Prior art keywords
liquid crystal
crystal display
antistatic
layer
conductive layer
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/092071
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English (en)
French (fr)
Inventor
许傲翔
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Publication of WO2023005337A1 publication Critical patent/WO2023005337A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/02—Carrying-off electrostatic charges by means of earthing connections

Definitions

  • the application relates to the technical field of displays, in particular to an antistatic liquid crystal display.
  • the conductive cloth is usually pasted on the corresponding area of the chip-on-film of the liquid crystal panel and the conductive tape is electrically connected with the metal part of the casing, thereby realizing the grounding of the liquid crystal panel.
  • foam should be filled between the chip-on-film and the conductive cloth to reduce the pressure of the conductive cloth on the chip-on-film, so that the static electricity on the liquid crystal panel needs to pass through the foam Only then can it be conducted to the metal shell, which weakens the anti-static ability of the LCD panel.
  • the application provides an antistatic liquid crystal display.
  • the application provides an antistatic liquid crystal display, comprising:
  • liquid crystal panel is fixed on the housing
  • An antistatic structure includes a conductive layer and an insulating layer stacked, the insulating layer is located within the range of the conductive layer and the area of the insulating layer is smaller than the area of the conductive layer;
  • the antistatic structure is located between the casing and the liquid crystal panel, the surface of the conductive layer away from the insulating layer is against the liquid crystal panel, and the conductive layer is electrically connected to the casing.
  • the antistatic structure further includes a conductive member, one end of the conductive member is fixedly connected to the surface of the conductive layer away from the insulating layer, and the other end is electrically connected to the casing.
  • the housing includes a front frame, a middle frame and a back plate, the front frame and the back plate enclose an accommodating space, and the middle frame is accommodated in the accommodating space; the liquid crystal panel Accommodated in the accommodating space and located between the front frame and the middle frame, the end of the conductive member away from the conductive layer is electrically connected to the front frame, the middle frame or the back one of the boards.
  • the front frame and the middle frame are made of plastic material
  • the back plate is made of metal material
  • the end of the conductive member away from the conductive layer is electrically connected to the back plate.
  • the conductive layer and the conductive member are an integral structure.
  • the liquid crystal panel has a circuit layer
  • the antistatic liquid crystal display further includes a chip-on-film, one end of the chip-on-film is electrically connected to the circuit layer; the insulating layer covers the chip-on-film The position connecting the circuit layer is used for isolating the conductive layer and the chip-on-chip film.
  • an end of the chip-on-chip film away from the wiring layer is dislocated from the conductive member.
  • the antistatic structure further includes an elastic layer, and the elastic layer is located between the conductive layer and the casing.
  • the antistatic structure further includes an adhesive layer, and the adhesive layer is located between the elastic layer and the housing.
  • the conductive layer is made of conductive carbon fiber material.
  • the insulating layer located within the range of the conductive layer and the area of the insulating layer is smaller than the area of the conductive layer, at least part of the structure of the conductive layer is directly in contact with the liquid crystal panel, which greatly improves the performance of the liquid crystal panel. Anti-static ability.
  • Fig. 1 is the three-dimensional schematic diagram of the antistatic liquid crystal display that the embodiment of the present application provides;
  • Fig. 2 is a partial cross-sectional schematic diagram of an antistatic liquid crystal display in the prior art
  • Fig. 3 is a partially enlarged schematic diagram of area C shown in Fig. 2;
  • Fig. 4 is a schematic cross-sectional view of the antistatic liquid crystal display shown in Fig. 1 along the A-A direction;
  • Fig. 5 is a partially enlarged schematic diagram of area D shown in Fig. 4;
  • Fig. 6 is a schematic cross-sectional view of the antistatic liquid crystal display shown in Fig. 1 along the B-B direction;
  • Fig. 7 is a partially enlarged schematic diagram of area E shown in Fig. 6;
  • Fig. 8 is a schematic cross-sectional view of the antistatic structure in the antistatic liquid crystal display shown in Fig. 7;
  • Fig. 9 is a schematic bottom view of the antistatic structure shown in Fig. 8.
  • Fig. 10 is a partially enlarged schematic diagram of the region F shown in Fig. 9;
  • Fig. 11 is a schematic cross-sectional view of a deformation of the antistatic structure shown in Fig. 8;
  • FIG. 12 is a schematic cross-sectional view of a modification of the antistatic liquid crystal display shown in FIG. 4 .
  • FIG. 1 is a three-dimensional schematic diagram of an antistatic liquid crystal display provided by an embodiment of the present application.
  • the present application provides an antistatic liquid crystal display 100 .
  • the display can be applied to various types of computer system devices that are mobile or portable and perform wireless communication (only one form is shown in FIG. 1 exemplarily).
  • the display can be a mobile phone or smart phone (e.g., iPhoneTM-based, AndroidTM-based TV), a portable gaming device (e.g., Nintendo DSTM, PlayStation PortableTM, Gameboy AdvanceTM, iPhoneTM), a laptop , PDAs, portable Internet devices, music players and data storage devices, other handheld devices and such as headphones, etc., the display can also be used for other wearable devices that need to be charged (for example, such as electronic bracelets, electronic necklaces, displays or Head-mounted devices (HMD) for smart watches).
  • a mobile phone or smart phone e.g., iPhoneTM-based, AndroidTM-based TV
  • a portable gaming device e.g., Nintendo DSTM, PlayStation PortableTM, Gameboy AdvanceTM, iPhoneTM
  • a laptop PDAs
  • portable Internet devices e.g., Nintendo DSTM, PlayStation PortableTM, Gameboy AdvanceTM, iPhoneTM
  • music players and data storage devices e.g., music players and data storage devices
  • other handheld devices and such as headphones etc.
  • FIG. 2 is a partial cross-sectional view of an antistatic liquid crystal display in the prior art
  • FIG. 3 is a partial enlarged schematic view of area C shown in FIG. 2
  • the antistatic liquid crystal display 300 generally includes an antistatic structure 301 , a housing 302 , a liquid crystal panel 303 and a chip-on-chip.
  • the liquid crystal panel 303 is fixed on the housing 302, and the antistatic structure 301 is located between the housing 302 and the liquid crystal panel 303.
  • the liquid crystal panel 303 is electrically connected to the housing 302 to realize the grounding of the liquid crystal panel 303;
  • the gap between the housing 302 and the liquid crystal panel 303 is filled to prevent the liquid crystal panel 303 from vibrating relative to the housing 302 and improve the reliability of the liquid crystal panel 303 .
  • a circuit layer (not shown) is provided on the liquid crystal panel 303 , and the chip-on-film is electrically connected to the circuit layer for providing electrical signals to the liquid crystal panel 303 .
  • the antistatic structure 301 generally includes a conductive layer 3011 and a foam layer 3012 , and the conductive layer 3011 and the foam layer 3012 are sequentially stacked along the thickness direction of the antistatic structure 301 .
  • the conductive layer 3011 is disposed at the position where the chip-on-film is connected to the circuit layer and electrically communicates with the metal part of the casing 302 to realize the grounding of the liquid crystal panel 303 .
  • the foam layer 3012 is disposed between the COF and the conductive layer 3011 to prevent the conductive layer 3011 from directly acting on the surface of the COF to squeeze the COF and short circuit the COF.
  • the static electricity on the liquid crystal panel 303 needs to pass through the foam to be transferred to the metal shell 302 , which weakens the antistatic ability of the liquid crystal panel 303 .
  • FIG. 4 is a schematic cross-sectional view of the antistatic liquid crystal display shown in Figure 1 along the A-A direction
  • Figure 5 is a partially enlarged schematic view of the area D shown in Figure 4
  • Figure 6 is a schematic view of the area shown in Figure 1
  • FIG. 7 is a partially enlarged schematic view of the area E shown in FIG. 6 .
  • An embodiment of the present application provides an antistatic liquid crystal display 100 , which may include an antistatic structure 10 , a casing 20 , a liquid crystal panel 30 and a chip on film 40 .
  • the liquid crystal panel 30 is fixed on the housing 20, and the antistatic structure 10 is located between the housing 20 and the liquid crystal panel 30.
  • the liquid crystal panel 30 is electrically connected to the liquid crystal panel 30 to realize the grounding of the liquid crystal panel 30;
  • the gap between the housing 20 and the liquid crystal panel 30 is filled to prevent the liquid crystal panel 30 from vibrating relative to the housing 20 and improve the reliability of the liquid crystal panel 30 .
  • the liquid crystal panel 30 has a circuit layer (not shown in the figure), and the circuit layer is electrically connected with the COF 40 for enabling the liquid crystal panel 30 to receive electrical signals.
  • FIG. 8 is a schematic cross-sectional view of the antistatic structure in the antistatic liquid crystal display shown in FIG. 7 .
  • the antistatic structure 10 may include an adhesive layer 11, an elastic layer 12, a conductive layer 13, and an insulating layer 14, wherein the adhesive layer 11, the elastic layer 12, the conductive layer 13, and the insulating layer 14 are sequentially stacked along the thickness direction of the antistatic structure 10. . That is, the adhesive layer 11 is located on the surface of the elastic layer 12 away from the conductive layer 13 , the elastic layer 13 is located between the adhesive layer 11 and the conductive layer 13 , and the conductive layer 13 is located between the elastic layer 12 and the insulating layer 14 .
  • the adhesive layer 11 is fixedly connected on the casing 20, realizes the fixed connection between the antistatic structure 10 and the casing 20, and is used for the position of the antistatic structure 10 relative to the casing 20 to be unchanged, so as to prevent the antistatic liquid crystal display 100 from vibrating automatically.
  • the antistatic liquid crystal display 100 falls off, which improves the reliability of the fixed connection of the antistatic structure 10 .
  • the material of the adhesive layer 11 is adhesive, which can effectively improve the surface polarity of the silicone material, greatly improve the bonding performance, and has the characteristics of strong initial adhesion, high bonding strength, and convenient use. .
  • the elastic layer 12 is used to absorb the extrusion force of the housing 20 on the liquid crystal panel 30 on the one hand, avoiding the hard contact between the housing 20 and the liquid crystal panel 30, and reducing the possibility of the edge of the liquid crystal panel 30 being broken;
  • the liquid crystal panel 30 is in contact, so that the conductive layer 13 can be as close to the liquid crystal panel 30 as possible, so that an effective electrical connection is established between the conductive layer 13 and the liquid crystal panel 30 , and the effective grounding of the liquid crystal panel 30 is realized.
  • the material of the elastic layer 12 is foam, which has the characteristics of light weight, low cost and easy material acquisition.
  • the conductive layer 13 can be in contact with the liquid crystal panel 30 for conducting the static electricity on the liquid crystal panel 30 to the casing 20 for the purpose of grounding.
  • the conductive layer 13 is in the shape of a rectangular frame.
  • the shapes of the adhesive layer 11 and the elastic layer 12 correspond to the shape of the conductive layer 13 and are in the shape of a rectangular frame, so as to be evenly in contact with the liquid crystal panel. 30's edge.
  • the conductive layer 13 can use conductive cloth.
  • the conductive cloth uses fiber cloth as the base material. It has the advantages of good flexibility, thin thickness and good electrical conductivity.
  • FIG. 9 is a schematic bottom view of the antistatic structure shown in FIG. 8
  • FIG. 10 is a partially enlarged schematic view of the area F shown in FIG. 9
  • the insulating layer 14 is disposed on the surface of the conductive layer 13 away from the elastic layer 12 for isolating part of the liquid crystal panel 30 .
  • the insulating layer 14 is used to prevent the conductive layer 13 from directly contacting the chip-on-chip film 40 , so that the circuit layer of the liquid crystal panel 30 is short-circuited and the antistatic liquid crystal display 100 is damaged.
  • the insulating layer 14 is located within the range of the conductive layer 13 and the area of the insulating layer 14 is smaller than the area of the conductive layer 13, so that the insulating layer 14 can cover the chip-on-chip film 40 and the part of the conductive layer 13 away from the insulating layer 14 can directly In contact with the liquid crystal panel 30 .
  • the insulating layer 14 is located between the conductive layer 13 and the liquid crystal panel 30, and the insulating layer 14 can cover the COF 40 but not completely cover the conductive layer 13, so that part of the structure of the conductive layer 13 can be directly attached to the liquid crystal panel 30, so that While the static electricity on the liquid crystal panel 30 can be grounded in time, it is also possible to prevent the conductive layer 13 from directly contacting the COF 40 so that a short circuit occurs in the COF 40 .
  • the insulating layer 14 is made of non-metal Mylar, which has high dielectric strength, high voltage resistance, resistance to moisture, gas, high heat and chemical substances, and low shrinkage, not easy to be brittle, and resistant to wear. .
  • the side of the conductive layer 13 facing the insulating layer 14 can be divided into at least a first area 131, a second area 132 and a third area 133, wherein the first area 131 can be used to attach the insulating layer 14, and the second area 132 can be used to In direct contact with the liquid crystal panel 30 , the third region 133 may be directly or indirectly electrically connected to the casing 20 .
  • the antistatic structure 10 can also include a conductive member 15, one end of the conductive member 15 is electrically connected to the conductive layer 13 of the antistatic structure 10, and the other end is electrically connected to the housing 20, thereby realizing the connection between the antistatic structure 10 and the housing 20. electrical connection.
  • the two ends of the conductive member 15 are respectively provided with adhesive, and one end of the conductive member 15 is attached to the third area 133 of the conductive layer 13 through the adhesive, so as to realize the electrical connection between the conductive member 15 and the conductive layer 13, and the conductive member 15
  • the other end is pasted on the casing 20 through the back glue, and is used for the grounding of the liquid crystal panel 30 through the conductive layer 13 of the antistatic structure 10 , the conductive element 15 and the casing 20 .
  • the conductive member 15 can be made of conductive cloth, that is, it can be made of conductive carbon fiber, or it can be made of conductive metal film, which is not specifically limited here.
  • FIG. 11 is a schematic cross-sectional view of a deformation of the antistatic structure shown in FIG. 8 .
  • the conductive layer 13 and the conductive member 15 can also be an integrated structure, so as to reduce the fixed connection between the conductive layer 13 and the conductive member 15 , simplify the production process, and improve the reliability of the antistatic structure 10 .
  • the antistatic structure 10 may include an elastic layer 12 , a conductive layer 13 and an insulating layer 14 , wherein the elastic layer 12 , the conductive layer 13 and the insulating layer 14 are sequentially stacked along the thickness direction of the antistatic structure 10 .
  • the antistatic structure 10 may include a conductive layer 13 and an insulating layer 14 , wherein the conductive layer 13 and the insulating layer 14 are sequentially stacked along the thickness direction of the antistatic structure 10 .
  • the housing 20 may include a front frame 21 , a middle frame 22 and a back plate 23 , the front frame 21 and the back plate 23 may enclose an accommodating space 201 , and the middle frame 22 is accommodated in the accommodating space 201 .
  • the back plate 23 is located on the back side of the front frame 21 , and the back plate 23 presses and fixes the middle frame 22 on the front frame 21 .
  • the front frame 21 cooperates with the middle frame 22 and is clamped and fixed by the liquid crystal panel 30 to realize the fixed connection between the casing 20 and the liquid crystal panel 30 .
  • the front frame 21 may include a first baffle 211 and a first side edge 212 extending from an edge of the first baffle 211 .
  • the first baffle 211 has a rectangular frame structure.
  • the first side edge 212 has a rectangular frame structure and the first side edge 212 is perpendicular to the first baffle 211.
  • the first baffle 211 and the second One side edge 212 encloses the receiving cavity 210 .
  • the first baffle plate 211 may also be in a frame-like structure such as an ellipse or a square, which are not listed here.
  • the middle frame 22 may include a second baffle 221 and a second side edge 222 and a third side edge 223 extending from opposite side edges of the second baffle 221 , the second side edge 222 and the third side edge 223 are spaced apart from each other.
  • the fixed cavity 220 is arranged and surrounded by the second baffle plate 221 .
  • the second baffle plate 221 has a rectangular frame structure, and the second baffle plate 221 can be accommodated in the storage cavity 210 and the second side edge 222 can abut against the first side edge 212, so that the front frame 21 can wrap Middle frame 22.
  • the back plate 23 may include a supporting plate 231 and a fixing plate 232 extending from an edge of the supporting plate 231 , and the supporting plate 231 is used to support the casing 20 .
  • the fixing plate 232 has a rectangular frame structure and can be accommodated in the fixing cavity 220 of the middle frame 22.
  • the fixing plate 232 is attached to the second side edge 222 for fixed connection of the middle frame 22.
  • FIG. 12 is a schematic cross-sectional view of a modification of the antistatic liquid crystal display shown in FIG. 4 .
  • the housing 20 can also include a fixing member 24 such as a screw, a first fixing hole 2121 can be opened on the first side edge 212 , and a first fixing hole 2121 corresponding to the first fixing hole 2121 can be opened on the second side edge 222 .
  • Two fixing holes 2221, a third fixing hole 2321 corresponding to the second fixing hole 2221 can be opened on the fixing plate 232, and the fixing member 24 is penetrated in the first fixing hole 2121, the second fixing hole 2221 and the third fixing hole 2321 , and further realize the fixed connection of the front frame 21 , the middle frame 22 and the back plate 23 .
  • the end of the chip-on-film 40 away from the circuit layer is misplaced with the conductive member 15, so as to avoid friction or extrusion between the chip-on-film 40 and the conductive member 15, so that the chip-on film 40 is short-circuited or interferes with the COF 40 .
  • At least one of the front frame 21, the middle frame 22, and the back plate 23 is made of metal, and the conductive layer 13 in the antistatic structure 10 is connected to the front frame 21, the middle frame 22, and the back plate 23 through the conductive member 15.
  • an electrical connection made of metal is used, so that the liquid crystal panel 30 can be grounded through the antistatic structure 10 and the conductive member 15 .
  • the front frame 21 and the middle frame 22 are made of plastic material, and the back plate 23 is made of metal material.
  • the electrostatic structure 10 and the backplane 23 are grounded. It can be understood that the front frame 21 and the middle frame 22 are made of plastic material, which can facilitate plasticity and save processing costs, and can greatly reduce the total weight of the anti-static liquid crystal display 100 on the other hand.
  • the backplane 23 is used to support the antistatic liquid crystal display 100 , and the backplane 23 is made of metal, which can improve the strength of the backplane 23 and further improve the reliability of the antistatic liquid crystal display 100 .
  • the front frame 21 and the back plate 23 can be made of metal materials
  • the middle frame 22 can be made of plastic materials
  • the antistatic liquid crystal display 100 can be electrically connected with the front frame 21 through the conductive member 15 to realize liquid crystal display. Grounding of panel 30 .
  • the front frame 21 is made of plastic material
  • the middle frame 22 and the back plate 23 are made of metal material
  • the antistatic display can be electrically connected to any one of the middle frame 22 and the back plate 23 through the conductive member 15. sexual connection.
  • the edge of the liquid crystal panel 30 is located between the first baffle 211 and the second baffle 221, and is fixedly connected to the casing 20 under the action of the first baffle 211 and the second baffle 221.
  • the circuit layer of the liquid crystal panel 30 is disposed on the edge of the liquid crystal panel 30 , and is used for transmitting electric energy, electrical signals, etc. for the liquid crystal panel 30 .
  • the antistatic liquid crystal display 100 may further include a main board 50 .
  • One end of the COF 40 is electrically connected to the circuit layer of the liquid crystal panel 30 , and the other end is electrically connected to the main board 50 .
  • the liquid crystal panel 30 obtains the electrical signal of the main board 50 through the COF 40 . Understandably, since the COF 40 is characterized by thinness, light weight, and fine wiring distance, a short circuit is likely to occur when the COF 40 is squeezed, which affects the reliability of the COF 40 .
  • the insulating layer 14 covers the position where the chip-on film 40 is connected to the circuit layer, and the insulating layer 14 is used to isolate the conductive layer 13 from the chip-on film 40, so as to prevent the conductive layer 13 from directly contacting the chip-on film 40 and affecting the chip-on film. 40 stability.
  • the antistatic liquid crystal display 100 provided by the embodiment of the present application is provided by sequentially stacking the adhesive layer 11, the elastic layer 12, the conductive layer 13 and the insulating layer 14, and the insulating layer 14 is located within the range of the conductive layer 13 and the area of the insulating layer 14 is Smaller than the area of the conductive layer 13 , at least part of the structure of the conductive layer 13 is in direct contact with the liquid crystal panel 30 , which greatly improves the antistatic capability of the liquid crystal panel 30 .

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

一种防静电液晶显示器（100），包括壳体（20）、液晶面板（30）和防静电结构（10），液晶面板（30）固定于壳体（20）上；防静电结构（10）包括层叠设置的导电层（13）和绝缘层（14），绝缘层位于导电层（13）范围内且绝缘层（14）的面积小于导电层（13）的面积；其中防静电结构（10）位于壳体（20）与液晶面板（30）之间，导电层（13）远离绝缘层（14）的表面抵靠于液晶面板（30）上，导电层（13）与壳体（20）电性连接。通过上述方式，导电层（13）至少部分结构直接与液晶面板（30）接触，极大地提高了液晶面板（30）的防静电能力。

Description

防静电液晶显示器 技术领域
本申请涉及显示器技术领域，具体是涉及防静电液晶显示器。
背景技术
液晶显示器工作时，其液晶面板上存在静电，如果不及时释放这些静电，就会对液晶显示器的元器件造成短路损坏。为释放液晶面板上的静电，现有技术中导电布通常粘贴于液晶面板的覆晶薄膜对应区域且导电胶布与壳体的金属部分电性连通，进而实现液晶面板的接地。但为防止液晶面板的覆晶薄膜被挤压出现短路，覆晶薄膜与导电布之间需填充泡棉以减小导电布对覆晶薄膜的压力，使得液晶面板上的静电需要穿过泡棉才能传导到金属壳体上，弱化了液晶面板的防静电能力。
发明内容
本申请提供一种防静电液晶显示器。
本申请提供了一种防静电液晶显示器，包括：
壳体；
液晶面板，所述液晶面板固定于所述壳体上；以及
防静电结构，所述防静电结构包括层叠设置的导电层和绝缘层，所述绝缘层位于所述导电层范围内且所述绝缘层的面积小于所述导电层的面积；
其中所述防静电结构位于壳体与所述液晶面板之间，所述导电层远离所述绝缘层的表面抵靠于所述液晶面板上，所述导电层与所述壳体电性连接。
可选地，所述防静电结构还包括导电件，所述导电件的一端与所述导电层远离所述绝缘层的表面固定连接，另一端与所述壳体电性连接。
可选地，所述壳体包括前框、中框和背板，所述前框与所述背板围成容置空间，所述中框收容于所述容置空间中；所述液晶面板收容于所述容置空间中并位于所述前框与所述中框之间，所述导电件远离所述导电层的一端电性连接于所述前框、所述中框或所述背板中的一个。
可选地，所述前框与所述中框采用塑胶材质制成，所述背板采用金属材质制成，所述导电件远离所述导电层的一端电性连接于所述背板。
可选地，所述导电层与所述导电件是一体式结构。
可选地，所述液晶面板具有线路层，所述防静电液晶显示器还包括覆晶薄膜，所述覆晶薄膜的一端与所述线路层电性连接；所述绝缘层遮盖所述覆晶薄膜连接所述线路层的位置，用于隔离所述导电层与所述覆晶薄膜。
可选地，所述覆晶薄膜远离所述线路层的一端与所述导电件错位设置。
可选地，所述防静电结构还包括弹性层，所述弹性层位于所述导电层与所述壳体之间。
可选地，述防静电结构还包括粘接层，所述粘接层位于所述弹性层与所述壳体之间。
可选地，所述导电层采用导电碳纤维材料制成。
本申请实施例提供的防静电液晶显示器，通过使绝缘层位于导电层范围内且绝缘层的面积小于导电层的面积，使得导电层至少部分结构直接与液晶面板接触，极大的提高了液晶面板的防静电能力。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的防静电液晶显示器的立体示意图；
图2是现有技术中防静电液晶显示器的部分截面示意图；
图3是图2所示的区域C的局部放大示意图；
图4是图1所示的防静电液晶显示器沿A-A方向的截面示意图；
图5是图4所示的区域D的局部放大示意图；
图6是图1所示的防静电液晶显示器沿B-B方向的截面示意图；
图7是图6所示的区域E的局部放大示意图；
图8是图7所示的防静电液晶显示器中防静电结构的截面示意图；
图9是图8所示的防静电结构的仰视示意图；
图10是图9所示的区域F的局部放大示意图；
图11是图8所示的防静电结构一个变形的截面示意图；
图12是图4所示的防静电液晶显示器一个变形的截面示意图。
具体实施方式
下面结合附图和实施例，对本申请作进一步的详细描述。特别指出的是，以下实施例仅用于说明本申请，但不对本申请的范围进行限定。同样的，以下实施例仅为本申请的部分实施例而非全部实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
请参照图1，图1是本申请实施例提供的防静电液晶显示器的立体示意图。本申请提供一种防静电液晶显示器100。具体地，该显示器可以应用于移动或便携式并执行无线通信的各种类型的计算机系统设备中(图1中只示例性的示出了一种形态)。具体地，显示器可以为移动电话或智能电话(例如，基于iPhone TM，基于Android TM的电视)，便携式游戏设备(例如Nintendo DS TM，PlayStation Portable TM，Gameboy Advance TM，iPhone TM)、膝上型电脑、PDA、便携式互联 网设备、音乐播放器以及数据存储设备，其他手持设备以及诸如头戴式耳机等，显示器还可以为其他的需要充电的可穿戴设备(例如，诸如电子手镯、电子项链、显示器或智能手表的头戴式设备(HMD))。
请参照图2和图3，图2是现有技术中防静电液晶显示器的部分截面示意图，图3是图2所示的区域C的局部放大示意图。现有技术中，防静电液晶显示器300通常包括防静电结构301、壳体302、液晶面板303和覆晶薄膜。液晶面板303固定于壳体302上，防静电结构301位于壳体302与液晶面板303之间，一方面使液晶面板303与壳体302电性连接，实现液晶面板303的接地，另一方面用于填充壳体302与液晶面板303之间的间隙，避免液晶面板303相对壳体302震动，提高液晶面板303的可靠性。液晶面板303上设有线路层(图未示)，覆晶薄膜与线路层电性连接，用于为液晶面板303提供电信号。
防静电结构301通常包括导电层3011和泡棉层3012，导电层3011和泡棉层3012沿防静电结构301的厚度方向依次层叠设置。导电层3011设置于覆晶薄膜连接线路层的位置并与壳体302的金属部分电性连通，以实现液晶面板303的接地。泡棉层3012设置于覆晶薄膜与导电层3011之间，以避免导电层3011直接作用于覆晶薄膜的表面挤压覆晶薄膜，并使覆晶薄膜发生短路。但是如此设置，使得液晶面板303上的静电需要穿过泡棉才能传导到金属壳体302上，弱化了液晶面板303的防静电能力。
请参照图4至图7，图4是图1所示的防静电液晶显示器沿A-A方向的截面示意图，图5是图4所示的区域D的局部放大示意图，图6是图1所示的防静电液晶显示器沿B-B方向的截面示意图，图7是图6所示的区域E的局部放大示意图。本申请实施例提供一种防静电液晶显示器100，可包括防静电结构10、壳体20、液晶面板30和覆晶薄膜40。液晶面板30固定于壳体20上，防静电结构10位于壳体20与液晶面板30之间，一方面使液晶面板30与液晶面板30电性连接，实现液晶面板30的接地，另一方面用于填充壳体20与液晶面板30之间的间隙，避免液晶面板30相对壳体20震动，提高液晶面板30的可靠性。其中，液 晶面板30具有线路层(图未示)，线路层与覆晶薄膜40电性连接，用于使液晶面板30能够接收电信号。
请参照图8，图8是图7所示的防静电液晶显示器中防静电结构的截面示意图。防静电结构10可包括粘接层11、弹性层12、导电层13和绝缘层14，其中粘接层11、弹性层12、导电层13和绝缘层14沿防静电结构10厚度方向依次层叠设置。也即，粘接层11位于弹性层12背离导电层13的表面，弹性层13位于粘接层11与导电层13之间，导电层13位于弹性层12与绝缘层14之间。
其中，粘接层11固定连接于壳体20上，实现防静电结构10与壳体20的固定连接，用于防静电结构10相对壳体20位置不变，防止防静电液晶显示器100振动时自防静电液晶显示器100脱落，提高防静电结构10固定连接的可靠性。在本实施例中，粘接层11的材质是背胶，背胶能有效改善硅胶材质的表面极性，大大提高粘接性能，并具有初粘力强、粘结强度大、使用方便等特点。
弹性层12一方面用于吸收壳体20对液晶面板30的挤压力，避免壳体20与液晶面板30硬接触，减小液晶面板30边缘破碎的可能，另一方面使绝缘层14充分与液晶面板30接触，以使导电层13能够尽可能地靠近液晶面板30，使导电层13与液晶面板30之间建立有效电性连接，实现液晶面板30的有效接地。本实施方式中，弹性层12的材质为泡棉，泡棉具有质量轻、成本低且取材容易等特点。
请一并参照图4至图7，导电层13可与液晶面板30接触，用于将液晶面板30上的静电传导至壳体20上，以实现接地的目的。可选地，导电层13呈长方形矩形框状结构，对应地，粘接层11、弹性层12的形状对应于导电层13的形状并呈长方形矩形框状，以能够均匀地抵接于液晶面板30的边缘。本实施例中，所述导电层13可采用可导电布，具体地，导电布以纤维布为基材，经过前置处理后施以电镀金属镀层使其具有金属特性而成为导电纤维布，以使其具有柔韧性好、厚度薄且导电性能好的优点。
请一并参照图9和图10，图9是图8所示的防静电结构的仰视示意 图，图10是图9所示的区域F的局部放大示意图。绝缘层14设置于导电层13背离弹性层12的表面，用于隔离部分液晶面板30。绝缘层14用于避免导电层13直接与覆晶薄膜40接触，使得液晶面板30的线路层发生短路，损坏防静电液晶显示器100。可选地，绝缘层14位于导电层13的范围内且绝缘层14的面积小于导电层13的面积，以使绝缘层14能够遮盖覆晶薄膜40且导电层13远离绝缘层14的部分能够直接与液晶面板30接触。
换言之，绝缘层14位于导电层13与液晶面板30之间，绝缘层14能够遮盖覆晶薄膜40但不完全遮盖导电层13，使得导电层13部分结构能够直接贴附于液晶面板30上，使得液晶面板30上的静电能够及时接地的同时，又避免导电层13直接与覆晶薄膜40接触使得覆晶薄膜40发生短路。本实施方式中，绝缘层14采用的非金属麦拉，麦拉具有绝缘强度高，耐电压高，抗潮湿、气体、高热及化学物质的侵袭，并且收缩率低、不易脆化、耐磨损。
具体地，导电层13朝向绝缘层14的一侧至少可划分为第一区域131、第二区域132和第三区域133，其中第一区域131可用于贴设绝缘层14，第二区域132可用于直接与液晶面板30接触，第三区域133可直接或者间接与壳体20电性连接。
需要说明的是，本申请中的术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”、“第三”的特征可以明示或者隐含地包括至少一个该特征。本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
防静电结构10还可包括导电件15，导电件15的一端与防静电结构10的导电层13电性连接，另一端与壳体20电性连接，进而实现防静电结构10与壳体20的电性连接。具体地，导电件15的两端分别设置背胶，导电件15的一端通过背胶贴设于导电层13的第三区域133，实现导电件15与导电层13的电性连接，导电件15的另一端通过背胶贴设于壳体20上，用于液晶面板30通过防静电结构10的导电层13、导电 件15与壳体20实现接地。本实施例中，所述导电件15可采用导电布制成，也即可采用导电碳纤维制成，也可采用导电金属膜，在此不做具体限制。
请参照图11，图11图8所示的防静电结构一个变形的截面示意图。可选地，导电层13还可与导电件15是一体式结构，以减少导电层13与导电件15之间的固定连接，简化生产工艺，并提高防静电结构10的可靠性。
在一个实施例中，防静电结构10可包括弹性层12、导电层13和绝缘层14，其中弹性层12、导电层13和绝缘层14沿防静电结构10厚度方向依次层叠设置。
再又一个实施例中，防静电结构10可包括导电层13和绝缘层14，其中导电层13和绝缘层14沿防静电结构10厚度方向依次层叠设置。
请参照图4至图7，壳体20可包括前框21、中框22和背板23，前框21与背板23可围成容置空间201，中框22收容于容置空间201中。换言之，背板23位于前框21的背侧，背板23将中框22抵紧并固定于前框21上。前框21与中框22配合，经液晶面板30夹持固定，实现壳体20与液晶面板30的固定连接。
具体地，前框21可包括第一挡板211及自第一挡板211的边缘延伸形成的第一侧沿212。本实施方式中，第一挡板211呈长方形框状结构，对应地，第一侧沿212呈长方形框状结构且第一侧沿212垂直于第一挡板211，第一挡板211与第一侧沿212围成收容腔210。在其他实施方式中，第一挡板211还可呈椭圆形、正方形等框状结构，在此不一一举例。
中框22可包括第二挡板221及自第二挡板221的相对两侧边缘延伸形成的第二侧沿222和第三侧沿223，第二侧沿222与第三侧沿223间隔相对设置并与第二挡板221围成固定腔220。本实施方式，第二挡板221呈长方形框状结构，且第二挡板221能够收容于收容腔210中且第二侧沿222能够抵靠于第一侧沿212，使得前框21能够包裹中框22。
背板23可包括支撑板231及自支撑板231边沿延伸形成的固定板232，支撑板231用于支撑壳体20。具体地，固定板232呈长方形框状 结构且能够收容于中框22的固定腔220中，固定板232与第二侧沿222贴合，用于中框22固定连接。
请参照图12，图12是图4所示的防静电液晶显示器一个变形的截面示意图。请参照图12，壳体20还可包括固定件24譬如螺钉，第一侧沿212上可开设有第一固定孔2121，第二侧沿222上可开设有对应于第一固定孔2121的第二固定孔2221，固定板232上可开设有对应于第二固定孔2221的第三固定孔2321，固定件24穿设于第一固定孔2121、第二固定孔2221与第三固定孔2321中，进而实现前框21、中框22与背板23的固定连接。
请继续参照图4至图7，可选地，覆晶薄膜40远离线路层的一端与导电件15错位设置，以避免覆晶薄膜40与导电件15接触发生摩擦或挤压，使覆晶薄膜40发生短路或者干扰覆晶薄膜40。
可选地，前框21、中框22及背板23三者中的至少一个采用金属材质，防静电结构10中的导电层13通过导电件15与前框21、中框22及背板23三者中采用金属材质的一个电性连接，以使液晶面板30通过防静电结构10、导电件15实现接地。
本实施例中，前框21与中框22采用塑胶材质制成，背板23采用金属材质制成，防静电结构10中的导电件15与背板23电性连接，使得液晶面板30通过防静电结构10、背板23实现接地。可以理解地，前框21、中框22采用塑胶材质，一方面方便塑性，节约加工成本，另一方面可大幅降低防静电液晶显示器100的总重量。而背板23用于支撑防静电液晶显示器100，背板23采用金属材质，能够提高背板23的强度、进而提高防静电液晶显示器100的可靠性。
在其他实施例中，前框21、背板23可采用金属材质制成，中框22可采用塑胶材质制成，防静电液晶显示器100可通过导电件15与前框21电性连接，实现液晶面板30的接地。在又一些实施例中，前框21采用塑胶材质制成，中框22与背板23采用金属材质制成，防静电显示器可通过导电件15与中框22、背板23中的任一个电性连接。
液晶面板30的边缘位于第一挡板211与第二挡板221之间，在第 一挡板211与第二挡板221的作用下，与壳体20固定连接。液晶面板30的线路层设置于液晶面板30的边缘，用于为液晶面板30传输电能、电信号等。
防静电液晶显示器100还可包括主板50。覆晶薄膜40的一端与液晶面板30的线路层电性连接，另一端与主板50电性连接。液晶面板30通过覆晶薄膜40获取主板50的电信号。可以理解地，由于覆晶薄膜40具有薄、轻、布线距离细微的特点，使得覆晶薄膜40受到挤压时极易发生短路，影响覆晶薄膜40的可靠性。
可选地，绝缘层14遮盖覆晶薄膜40连接线路层的位置，绝缘层14用于隔离导电层13与覆晶薄膜40，避免导电层13直接与覆晶薄膜40直接接触，影响覆晶薄膜40的稳定性。
本申请实施例提供的防静电液晶显示器100，通过将粘接层11、弹性层12、导电层13与绝缘层14依次层叠设置，且绝缘层14位于导电层13范围内且绝缘层14的面积小于导电层13的面积，使得导电层13至少部分结构直接与液晶面板30接触，极大地提高了液晶面板30的防静电能力。
以上所述仅为本申请的部分实施例，并非因此限制本申请的保护范围，凡是利用本申请说明书及附图内容所作的等效装置或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (20)

  1. 一种防静电液晶显示器，其特征在于，包括：
    壳体；
    液晶面板，所述液晶面板固定于所述壳体上；以及
    防静电结构，所述防静电结构包括层叠设置的导电层和绝缘层，所述绝缘层位于所述导电层范围内且所述绝缘层的面积小于所述导电层的面积；
    其中所述防静电结构位于壳体与所述液晶面板之间，所述导电层远离所述绝缘层的表面抵靠于所述液晶面板上，所述导电层与所述壳体电性连接。
  2. 根据权利要求1所述的防静电液晶显示器，其特征在于，所述防静电结构还包括导电件，所述导电件的一端与所述导电层远离所述绝缘层的表面固定连接，另一端与所述壳体电性连接。
  3. 根据权利要求2所述的防静电液晶显示器，其特征在于，所述壳体包括前框、中框和背板，所述前框与所述背板围成容置空间，所述中框收容于所述容置空间中；所述液晶面板收容于所述容置空间中并位于所述前框与所述中框之间，所述导电件远离所述导电层的一端电性连接于所述前框、所述中框或所述背板中的一个。
  4. 根据权利要求3所述的防静电液晶显示器，其特征在于，所述前框与所述中框采用塑胶材质，所述背板采用金属材质，所述导电件远离所述导电层的一端电性连接于所述背板。
  5. 根据权利要求3所述的防静电液晶显示器，其特征在于，所述前框采用金属材质，所述导电件远离所述导电层的一端电性连接于所述前框。
  6. 根据权利要求3所述的防静电液晶显示器，其特征在于，所述中框采用金属材质，所述导电件远离所述导电层的一端电性连接于所述中框。
  7. 根据权利要求3所述的防静电液晶显示器，其特征在于，所述前框包括第一挡板及自所述第一挡板的边缘延伸形成的第一侧沿，所述第一挡板与所述第一侧沿围成收容腔；所述中框收容于所述收容腔中。
  8. 根据权利要求7所述的防静电液晶显示器，其特征在于，所述中框包括第二挡板及自所述第二挡板的相对两侧边缘延伸形成的第二侧沿和第三侧沿；所述第二挡板收容于所述收容腔中且所述第二侧沿抵靠于所述第一侧沿，使得所述前框包裹所述中框。
  9. 根据权利要求8所述的防静电液晶显示器，其特征在于，所述第二侧沿与所述第三侧沿间隔相对设置并与所述第二挡板围成固定腔；所述背板包括支撑板及自支撑板边沿延伸形成的固定板，所述支撑板收容于所述固定腔中，所述固定板与所述第二侧沿贴合，使得所述背板与所述中框连接。
  10. 根据权利要求9所述的防静电液晶显示器，所述第一侧沿上开设有第一固定孔，所述第二侧沿上开设有对应于所述第一固定孔的第二固定孔，所述固定板上开设有对应于所述第二固定孔的第三固定孔；所述壳体还包括固定件，所述固定件穿设于所述第一固定孔、所述第二固定孔与所述第三固定孔中，使所述前框、所述中框与所述背板的连接。
  11. 根据权利要求2所述的防静电液晶显示器，其特征在于，所述导电层与所述导电件是一体式结构。
  12. 根据权利要求2所述的防静电液晶显示器，其特征在于，所述液晶面板具有线路层，所述防静电液晶显示器还包括覆晶薄膜，所述覆晶薄膜的一端与所述线路层电性连接；所述绝缘层遮盖所述覆晶薄膜连接所述线路层的位置，用于隔离所述导电层与所述覆晶薄膜。
  13. 根据权利要求12所述的防静电液晶显示器，其特征在于，所述覆晶薄膜远离所述线路层的一端与所述导电件错位设置。
  14. 根据权利要求12所述的防静电液晶显示器，其特征在于，所述防静电液晶显示器还包括主板，所述主板与所述覆晶薄膜电性连接。
  15. 根据权利要求1所述的防静电液晶显示器，其特征在于，所述 防静电结构还包括弹性层，所述弹性层位于所述导电层与所述壳体之间。
  16. 根据权利要求15所述的防静电液晶显示器，其特征在于，所述弹性层的材质是泡棉。
  17. 根据权利要求15所述的防静电液晶显示器，其特征在于，所述防静电结构还包括粘接层，所述粘接层位于所述弹性层与所述壳体之间。
  18. 根据权利要求17所述的防静电液晶显示器，其特征在于，所述粘接层的材质是背胶。
  19. 根据权利要求1所述的防静电液晶显示器，其特征在于，所述导电层采用导电碳纤维材料制成。
  20. 根据权利要求1所述的防静电液晶显示器，其特征在于，所述导电层朝向所述绝缘层的一侧包括第一区域、第二区域和第三区域，其中所述第一区域贴设于所述绝缘层上，所述第二区域与所述液晶面板接触，所述第三区域与所述壳体电性连接。
PCT/CN2022/092071 2021-07-27 2022-05-10 防静电液晶显示器 Ceased WO2023005337A1 (zh)

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CN215576008U (zh) * 2021-07-27 2022-01-18 Oppo广东移动通信有限公司 防静电液晶显示器
CN114822277B (zh) * 2022-06-29 2022-11-25 惠科股份有限公司 显示屏及拼接屏

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