WO2019205587A1 - 显示装置 - Google Patents
显示装置 Download PDFInfo
- Publication number
- WO2019205587A1 WO2019205587A1 PCT/CN2018/115265 CN2018115265W WO2019205587A1 WO 2019205587 A1 WO2019205587 A1 WO 2019205587A1 CN 2018115265 W CN2018115265 W CN 2018115265W WO 2019205587 A1 WO2019205587 A1 WO 2019205587A1
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- WO
- WIPO (PCT)
- Prior art keywords
- conductive
- substrate
- display device
- orthographic projection
- backlight module
- Prior art date
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Images
Classifications
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- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- 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
- G02F1/136204—Arrangements to prevent high voltage or static electricity failures
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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
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
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- 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
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- G02F1/133334—Electromagnetic shields
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- G—PHYSICS
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- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133612—Electrical details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
- H01L27/0251—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
- H01L27/0288—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using passive elements as protective elements, e.g. resistors, capacitors, inductors, spark-gaps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
- H01L27/0251—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
- H01L27/0296—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices involving a specific disposition of the protective devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0067—Devices for protecting against damage from electrostatic discharge
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0079—Electrostatic discharge protection, e.g. ESD treated surface for rapid dissipation of charges
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
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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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/50—Protective arrangements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10128—Display
- H05K2201/10136—Liquid Crystal display [LCD]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/303—Surface mounted components, e.g. affixing before soldering, aligning means, spacing means
- H05K3/305—Affixing by adhesive
Definitions
- the present disclosure relates to the field of display technologies, and in particular, to a display device.
- the profile cutting design of the first substrate of the display screen and the end of the color film substrate becomes more and more common, and the LED is closer and closer to the edge of the screen when the display module is in the display module.
- the LED may be exposed to static electricity such as a light-off or a blast.
- the backlight module comprising an LED light group
- the display panel includes a first substrate and a second substrate disposed in a direction away from the backlight module, and the first substrate includes a non-occlusion region not covered by the second substrate, and the LED lamp group is An orthographic projection of the first substrate is located in the non-occlusion region;
- the protective cover plate is located at a light exiting side of the display panel
- a casing located at a side of the backlight module facing away from the display panel, and the casing is grounded;
- the method further includes: a flexible circuit board connected to the first substrate;
- the flexible circuit board includes a first ground end, and the conductive structure is electrically connected to the first ground end.
- the conductive structure includes: a conductive shielding layer on a side of the first substrate adjacent to the second substrate;
- the conductive shielding layer is located in the non-occlusion region of the first substrate, and an orthographic projection of the conductive shielding layer on the first substrate covers at least one of the LEDs in the LED light group.
- the first substrate is provided with a contact pad in the non-obscured region
- the conductive shielding layer is electrically connected to the contact pad, and the first ground end is electrically connected to the contact pad.
- the orthographic projection of the conductive shielding layer on the first substrate covers an orthographic projection of the light emitting diodes at both ends of the LED light group on the first substrate.
- the material of the conductive shielding layer comprises a transparent conductive material.
- the conductive structure includes: a conductive buffer portion, and a conductive connection portion;
- One end of the conductive buffer portion is connected to a side of the protective cover plate facing the first substrate, and the other end is connected to the first substrate at a position of the non-occlusion region;
- the conductive connection portion is attached to the side of the first substrate and the backlight module corresponding to the LED light group, and the conductive connection portion is overlapped with the conductive buffer portion;
- An orthographic projection of the conductive buffer on the first substrate does not overlap with an orthographic projection of the flexible circuit board on the first substrate;
- the conductive connection portion has no overlapping area with the flexible circuit board.
- the protective cover is disposed on a side close to the display panel with a second ground end disposed at a ground;
- the conductive buffer portion is electrically connected to the second ground end.
- the conductive structure further includes: a conductive layer located on a side of the backlight module adjacent to the casing;
- the conductive layer overlaps the conductive connection and is electrically connected to the casing.
- the orthographic projection of the conductive layer on the first substrate at least covers an orthographic projection of the LED light group on the first substrate.
- the material of the conductive layer comprises graphite.
- the material of the conductive buffer portion comprises a conductive foam.
- the conductive connection portion is a conductive adhesive coating.
- the backlight module further includes: a metal back plate located on a side of the LED light group facing away from the display panel, and the light emitting diode lamp group and the a reflective sheet between the metal back sheets;
- the metal back plate is electrically connected to the conductive structure.
- FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure
- FIG. 2 is a second schematic structural diagram of a display device according to an embodiment of the present disclosure.
- FIG. 3 is a third schematic structural diagram of a display device according to an embodiment of the present disclosure.
- FIG. 4 is a fourth schematic structural diagram of a display device according to an embodiment of the present disclosure.
- an embodiment of the present disclosure provides a display device.
- the present disclosure will be further described in detail in the following examples for the purpose of the present disclosure.
- FIG. 1 is a schematic cross-sectional view of a display device according to an embodiment of the present disclosure
- FIG. 3 is a schematic cross-sectional view of a display device according to an embodiment of the present disclosure.
- the present disclosure provides a display device, as shown in FIGS. 1 and 2, including:
- the backlight module 1 includes a light-emitting diode lamp set 8;
- the display panel 2 includes a first substrate 5 and a second substrate 6 disposed in a direction away from the backlight module 1 , and the first substrate 5 includes a non-occlusion region not covered by the second substrate 6 (shown by a broken line A in the figure)
- the orthographic projection of the LED lamp set 8 on the first substrate 5 is located in the non-occlusion area A;
- the protective cover 12 is located on the light exit side of the display panel 2;
- the casing 15 is located on a side of the backlight module 1 facing away from the display panel 2, and the casing 15 is grounded;
- the conductive structure 18, the orthographic projection of the conductive structure 18 on the first substrate 5 and the orthographic projection of the LED array 8 on the first substrate 5 at least partially overlap, and the conductive structure 18 connects the protective cover 12 and the casing 15.
- the display device provided by the embodiment of the present disclosure is configured by grounding the casing and providing a conductive structure connecting the protective cover and the casing, and the orthographic projection of the conductive structure on the first substrate and the LED lamp group on the first substrate
- the upper orthographic projection has at least partially overlapping regions.
- the conductive structure 18 may be in a direction perpendicular to the surface of the display panel. At least a portion of the LED lamp set 8 is shielded to mitigate damage to the LED lamp set 8 by static electricity in a direction perpendicular to the surface of the display panel.
- the display panel 2 may be a liquid crystal display panel.
- the LED light group 8 in the backlight module 1 may be located at one side of the backlight module 1 or two of the backlight modules 1 . Or a plurality of side edges, which are not limited herein, a plurality of light emitting diodes 14 may be included in the LED group 8.
- the LEDs 14 may be arranged in one or more rows, and the number of the LEDs 14 is not The arrangement is limited.
- FIG. 1 and FIG. 2 further comprising: a flexible circuit board 11 connected to the first substrate 5;
- the flexible circuit board 11 includes a first ground terminal (not shown), and the conductive structure 18 is electrically connected to the first ground terminal.
- the conductive structure 18 includes: a conductive shielding layer 9 located on a side of the first substrate 5 adjacent to the second substrate 6;
- the conductive shielding layer 9 is located in the non-occlusion area A of the first substrate 5, and the orthographic projection of the conductive shielding layer 9 on the first substrate 5 covers at least the LED light group 8.
- the first substrate 5 is provided with a contact pad (not shown) in the non-occlusion area A;
- the conductive shielding layer 9 is electrically connected to the contact pad, and the first ground end is electrically connected to the contact pad.
- the first ground end of the flexible circuit board 11 can be connected to the contact pad located in the non-occlusion area A, and the contact pad and the conductive shielding layer 9 are both located in the non-occlusion area A of the first substrate 5. Therefore, the contact pad and the conductive shielding layer 9 can be connected by a conductor such as a wire, thereby achieving electrical connection between the conductive shielding layer 9 and the first ground end.
- the orthographic projection of the conductive shielding layer 9 on the first substrate 5 covers at least one orthographic projection of one light emitting diode 14 on the first substrate 5, so that the static electricity generated on the side of the first substrate 5 close to the protective cover 12 can be blocked. The damage of the LED can not only protect the LED 14 from static electricity, but also reduce the coating range of the electrostatic shielding layer 9, thereby reducing the production cost of the display module.
- a driving chip or other traces may be disposed in the non-occlusion area A of the first substrate 5, in order to prevent the conductive shielding layer 9 from being short-circuited with the driving chip or other traces, in the display device provided by the embodiment of the present disclosure,
- the orthographic projection of the conductive shielding layer 9 on the first substrate 5 covers the orthographic projection of the light emitting diodes 14 on both ends of the LED lamp group 8 on the first substrate 5, thereby preventing static electricity from being transmitted from both ends of the LED lamp group 8 to the light emission.
- the diodes damage the light-emitting diodes.
- the conductive shield layer 9 is set to The orthographic projection on the first substrate 5 blocks the light-emitting diodes at both ends to function as a good anti-static.
- the material of the conductive shielding layer 9 includes a transparent conductive material, and for example, a transparent conductive oxide material such as indium tin oxide (ITO) may be used. This can achieve the discharge of static electricity without affecting the display effect of the display module.
- a transparent conductive oxide material such as indium tin oxide (ITO)
- the conductive structure 18 includes: a conductive buffer portion 13, and a conductive connecting portion 10;
- One end of the conductive buffer portion 13 is connected to the side of the protective cover 12 facing the first substrate 5, and the other end is connected to the first substrate 5 at a position of the non-occlusion area;
- the conductive connecting portion 10 is attached to the side of the first substrate 5 and the backlight module 1 and the light-emitting diode group 8 , and the conductive connecting portion 10 is overlapped with the conductive buffer portion 13 ;
- the orthographic projection of the conductive buffer portion 13 on the first substrate 5 does not overlap with the orthographic projection of the flexible circuit board 11 on the first substrate 5;
- the conductive connection portion 10 has no overlapping area with the flexible circuit board 11.
- the conductive buffer portion 13 is filled between the non-occlusion region of the first substrate 5 and the protective cover, and the orthographic projection of the conductive buffer portion 13 on the first substrate 5 and the orthographic projection of the flexible circuit board 11 on the first substrate 5 are absent.
- the conductive buffer portion 13 is overlapped to avoid the short circuit, and the function of the flexible circuit board 11 is affected. Further, the conductive buffer portion 13 can be connected to the first substrate 5 through the conductive shielding layer 9, thereby The conductive buffer portion 13 is electrically connected to the first ground end of the flexible circuit board 11.
- one end of the conductive connecting portion 10 can be overlapped with the conductive buffer portion 13 , and the other end directly or indirectly connected to the casing 15 . Bonding, thereby achieving electrical connection between the conductive buffer portion 13 and the casing 15, and the conductive connecting portion 10 and the flexible circuit board 11 have no overlapping area, and thus the conductive connecting portion 10 does not affect the flexible circuit board 11 toward the casing. 15 back bends.
- the protective cover 12 is disposed on the side close to the display panel 2 with a second grounding end (not shown) disposed at the ground;
- the conductive buffer portion 13 is electrically connected to the second ground terminal.
- the second ground end may be disposed at a position opposite to the conductive buffer portion 13 of the protective cover 12, so that the second ground end
- the conductive buffer portion 13 can be directly in contact with the connection.
- the electrostatic discharge path of the conductive structure 18 is increased by connecting the conductive buffer portion 13 to the second ground end. For example, when static electricity appears on the side of the backlight module, the static electricity can be released at the casing 15 and the static electricity can be conducted.
- the first ground end on the flexible circuit board 11 is released, and may be discharged to the second ground end on the protective cover 12 for release, or when static electricity is generated on the side of the protective cover 12 of the display device, the static electricity may be transmitted to A portion of the second grounding end of the protective cover 12 is released, and may be conducted to the first grounding end of the flexible circuit board 11 for release, or may be transmitted to the casing for release, thereby improving the electrostatic discharge capability of the conductive structure. And the static electricity can be quickly removed to prevent the influence of static electricity on the LED lamp set 8 or other structures.
- the conductive structure 18 may further include: a conductive layer 3 located on a side of the backlight module 1 near the casing 15;
- the conductive layer 3 is overlapped with the conductive connecting portion 10 and electrically connected to the casing 15.
- the conductive property is improved as compared with directly connecting the conductive connecting portion 10 to the casing 15. Thereby, static electricity can be smoothly discharged through the casing 15.
- This arrangement can form conductive paths for the conductive layer 3, the conductive connection portion 10, and the conductive shield layer 9.
- the static electricity is first transmitted to the conductive connecting portion 10 through the conductive layer 3, and then transmitted to the conductive shielding layer 9 on the first substrate 5 through the conductive connecting portion 10,
- the conductive shielding layer 9 is grounded, so that static electricity is transmitted to the ground through the conductive shielding layer 9, thereby completing the discharge of static electricity.
- the orthographic projection of the conductive layer 3 on the first substrate 5 at least covers the orthographic projection of the LED lamp group 8 on the first substrate 5, that is, the conductive layer 3 can be disposed.
- the strip-shaped area at the corresponding position of the LED lamp set 8 can block the damage of the static-light-emitting diode group 8 from the side of the backlight module 1 close to the casing 15 and can ensure the conductive property of the conductive layer 3.
- the setting range of the conductive layer 3 is reduced, thereby reducing the production cost of the display module.
- the material of the conductive layer 3 may include graphite, which may be a graphite bonding layer and a graphite coating of the latter, that is, the conductive layer 3 may be formed on the backlight module 1 near the casing 15 by coating or attaching. One side.
- the material of the conductive buffer portion comprises a conductive foam
- the conductive foam is formed by using the conductive foam
- the first substrate 5 and the protective cover can be relatively well filled. Between 12, it is ensured that the first ground end on the protective cover can be in good contact with the conductive structure.
- the conductive connection portion 10 is a conductive adhesive coating, and the conductive adhesive coating may be directly attached to the side of the display panel 2 and the backlight module 1 during the manufacturing process. Easy to operate.
- the conductive connection portion may be a planar conductive adhesive coating or a linear conductive adhesive coating.
- the efficiency of electrostatic conduction can be effectively improved.
- the static electricity is generated in the peripheral area of the display module and conducted to the area where the light emitting diode is located, the amount of static electricity is small, and the conductive adhesive coating can be set as a plurality of linear conductive adhesive coatings in order to save production cost.
- the backlight module 1 may further include: a metal back plate 16 located on a side of the LED lamp group 8 facing away from the display panel 2, and a light-emitting diode lamp group 8 and the metal back plate 16 between the reflective sheet 4;
- the metal backing plate 16 is electrically connected to the electrically conductive structure 18.
- the backlight module 1 can also include a light guide plate 17, which can be disposed at the side of the light guide plate 17, and the reflective sheet 4 is disposed between the light guide plate 17 and the metal back plate 16, and the reflective sheet 4 can be The light of the light guide plate 17 on the side close to the metal back plate 16 is reflected back to the light guide plate 17 again, thereby improving light utilization efficiency.
- the metal back plate 16 and the conductive layer 3 can be directly overlapped, thereby achieving electrical connection between the metal back plate 16 and the conductive structure 18, thereby prolonging the path of electrostatic transmission and preventing electrostatic damage to the LED lamp set.
- the metal back plate 16 can be electrically conductive
- the conductive connecting portion 10 and the casing 15 can also be connected through the metal back plate 16, so that the conductive layer 3 can be omitted, and the surface of the metal back plate 16 and the reflective sheet 4 can be electrostatically conductive. The function. At this time, a conductive path of the metal back plate 16, the conductive connection portion 10, and the conductive shield layer 9 can be formed.
- the static electricity is first transmitted to the conductive connecting portion 10 through the conductive layer 3, and then transmitted to the conductive shielding layer 9 on the first substrate 5 through the conductive connecting portion 10, because the conductive shielding layer 9
- the grounding is set, so that static electricity is transmitted to the ground through the conductive shielding layer 9, thereby completing the discharge of static electricity.
- the above display device provided by the embodiment of the present disclosure is provided by grounding the casing, and providing a conductive structure connecting the protective cover and the casing, and setting the conductive structure to the first ground end on the flexible circuit board and protecting
- the second grounding end of the cover plate is connected to form a plurality of electrostatic discharge paths in a three-dimensional form.
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Abstract
Description
Claims (13)
- 一种显示装置,其中,包括:显示面板;背光模组,所述背光模组包括发光二极管灯组;所述显示面板包括沿远离所述背光模组方向依次设置的第一基板和第二基板,所述第一基板包括未被所述第二基板覆盖的非遮挡区,所述发光二极管灯组在所述第一基板的正投影位于所述非遮挡区中;保护盖板,所述保护盖板位于所述显示面板的出光侧;机壳,位于所述背光模组背离所述显示面板的一侧,且所述机壳接地设置;导电结构,所述导电结构在所述第一基板的正投影与所述发光二极管灯组在所述第一基板的正投影至少存在部分交叠区域,且所述导电结构连接所述保护盖板与所述机壳。
- 如权利要求1所述的显示装置,其中,还包括:与所述第一基板连接的柔性电路板;所述柔性电路板包括第一接地端,所述导电结构与所述第一接地端电连接。
- 如权利要求2所述的显示装置,其中,所述导电结构,包括:位于所述第一基板靠近所述第二基板一侧的导电屏蔽层;所述导电屏蔽层位于所述第一基板的所述非遮挡区内,且所述导电屏蔽层在所述第一基板上的正投影至少覆盖所述发光二极管灯组中一个发光二极管在所述第一基板上的正投影;所述第一基板在所述非遮挡区内设有接触衬垫;所述导电屏蔽层与所述接触衬垫电连接,所述第一接地端与所述接触衬垫电连接。
- 如权利要求3所述的显示装置,其中,所述导电屏蔽层在所述第一基 板上的正投影覆盖所述发光二极管灯组两端的发光二极管在所述第一基板上的正投影。
- 如权利要求3所述的显示装置,其中,所述导电屏蔽层的材料包括透明导电材料。
- 如权利要求2所述的显示装置,其中,所述导电结构,包括:导电缓冲部,以及导电连接部;所述导电缓冲部的一端与所述保护盖板面向所述第一基板一侧连接,另一端在所述非遮挡区的位置处与所述第一基板连接;所述导电连接部贴附于所述第一基板和所述背光模组与所述发光二极管灯组对应的侧边处,且所述导电连接部与所述导电缓冲部搭接;所述导电缓冲部在所述第一基板上的正投影与所述柔性电路板在所述第一基板上的正投影无交叠;所述导电连接部与所述柔性电路板无搭接区域。
- 如权利要求6所述的显示装置,其中,所述保护盖板在靠近所述显示面板的一侧设有接地设置的第二接地端;所述导电缓冲部与所述第二接地端电连接。
- 如权利要求6所述的显示装置,其中,所述导电结构,还包括:位于所述背光模组靠近所述机壳一侧的导电层;所述导电层与所述导电连接部搭接,且与所述机壳电连接。
- 如权利要求8所述的显示装置,其中,所述导电层在所述第一基板上的正投影至少覆盖所述发光二极管灯组在所述第一基板上的正投影。
- 如权利要求8所述的显示装置,其中,所述导电层的材料包括石墨。
- 如权利要求6~10任一项所述的显示装置,其中,所述导电缓冲部的材料包括导电泡棉。
- 如权利要求6~10任一项所述的显示装置,其中,所述导电连接部为导电胶涂层。
- 如权利要求6~10任一项所述的显示装置,其中,所述背光模组,还 包括:位于所述发光二极管灯组背离所述显示面板一侧的金属背板,以及位于所述发光二极管灯组与所述金属背板之间的反射片;所述金属背板与所述导电结构电连接。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US16/473,080 US11199749B2 (en) | 2018-04-25 | 2018-11-13 | Display device |
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CN201810378434.3 | 2018-04-25 | ||
CN201810378434.3A CN108535903B (zh) | 2018-04-25 | 2018-04-25 | 一种显示模组及显示装置 |
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WO2019205587A1 true WO2019205587A1 (zh) | 2019-10-31 |
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PCT/CN2018/115265 WO2019205587A1 (zh) | 2018-04-25 | 2018-11-13 | 显示装置 |
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US (1) | US11199749B2 (zh) |
CN (1) | CN108535903B (zh) |
WO (1) | WO2019205587A1 (zh) |
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CN113179623A (zh) * | 2021-04-06 | 2021-07-27 | 武汉华星光电半导体显示技术有限公司 | 显示模组 |
CN113284419A (zh) * | 2021-05-24 | 2021-08-20 | 合肥鑫晟光电科技有限公司 | 一种显示面板、显示设备及车载显示设备 |
CN113593409A (zh) * | 2021-07-09 | 2021-11-02 | 武汉华星光电半导体显示技术有限公司 | 显示模组及显示装置 |
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CN108535903B (zh) | 2018-04-25 | 2022-03-04 | 京东方科技集团股份有限公司 | 一种显示模组及显示装置 |
KR20210010763A (ko) * | 2019-07-19 | 2021-01-28 | 삼성디스플레이 주식회사 | 표시 장치 |
US20210191185A1 (en) * | 2019-11-22 | 2021-06-24 | K-Tronics (Suzhou) Technology Co., Ltd. | Glass backplane and method of manufacturing the same, and display apparatus |
CN111487814B (zh) * | 2020-05-26 | 2022-08-02 | 武汉天马微电子有限公司 | 背光模组及显示装置 |
CN112349207B (zh) * | 2020-11-10 | 2023-02-21 | 京东方科技集团股份有限公司 | 一种背光模组和显示面板 |
CN113345340B (zh) * | 2021-08-06 | 2021-12-17 | 惠科股份有限公司 | 显示屏和拼接显示屏 |
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Also Published As
Publication number | Publication date |
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US11199749B2 (en) | 2021-12-14 |
CN108535903A (zh) | 2018-09-14 |
US20210333632A1 (en) | 2021-10-28 |
CN108535903B (zh) | 2022-03-04 |
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