WO2020073399A1 - 偏光片、显示屏和显示屏模组 - Google Patents

偏光片、显示屏和显示屏模组 Download PDF

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Publication number
WO2020073399A1
WO2020073399A1 PCT/CN2018/114318 CN2018114318W WO2020073399A1 WO 2020073399 A1 WO2020073399 A1 WO 2020073399A1 CN 2018114318 W CN2018114318 W CN 2018114318W WO 2020073399 A1 WO2020073399 A1 WO 2020073399A1
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WIPO (PCT)
Prior art keywords
layer
touch electrode
display screen
discharge
electrode layer
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PCT/CN2018/114318
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English (en)
French (fr)
Inventor
叶剑
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to US16/326,229 priority Critical patent/US20200127238A1/en
Publication of WO2020073399A1 publication Critical patent/WO2020073399A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W42/00—Arrangements for protection of devices
    • H10W42/60—Arrangements for protection of devices protecting against electrostatic charges or discharges, e.g. Faraday shields
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations

Definitions

  • the invention relates to the technical field of display, in particular to a polarizer, a display screen and a display screen module.
  • AMOLED (Active-matrix organic light emitting diode, active matrix organic light-emitting diode) display screen has the advantages of fast response, large viewing angle and flexible display, etc., and dominates the display field.
  • the electronic components in the AMOLED When the AMOLED display is in an environment with a strong local electrostatic field, the electronic components in the AMOLED will be damaged due to static electricity, resulting in an abnormal display on the AMOLED display.
  • the purpose of the invention is to provide a polarizer, a display screen and a display screen module, which improve the anti-static capability of the display screen.
  • An embodiment of the present invention provides a polarizer, which is applied to a display screen.
  • the polarizer includes: a discharge layer and a polarizing layer provided on the discharge layer; the discharge layer is connected to the ground in the display screen ⁇ ⁇ Line connection.
  • the impedance of the discharge layer ranges from 10 8 to 10 9 ohms.
  • An embodiment of the present invention also provides a display screen, including: an array substrate, a light emitting device layer, a thin film encapsulation layer, a discharge layer, and a ground trace;
  • the light emitting device layer is provided on the array substrate;
  • the thin-film encapsulation layer is provided on the light-emitting device layer;
  • the discharge layer is provided on the thin film encapsulation layer, and the discharge layer is connected to the ground trace.
  • the display screen further includes a touch electrode layer
  • the touch electrode layer is provided on the thin film encapsulation layer, and the discharge layer is provided on the touch electrode layer;
  • the touch electrode layer is provided on the discharge layer; or
  • the touch electrode layer is integrated on the light emitting device layer.
  • the light emitting device layer includes a cathode layer; after the cathode layer is patterned, the touch electrode layer is formed.
  • the display screen further includes a polarizer
  • the polarizer is provided on the discharge layer
  • the polarizer is provided on the touch electrode layer
  • the polarizer is disposed on the discharge layer.
  • the impedance range of the discharge layer is 100-150 ohms
  • the impedance range of the discharge layer is 10 8 -10 9 ohm.
  • the ground trace when the touch electrode layer is provided on the thin film encapsulation layer and the discharge layer is provided on the touch electrode layer, the ground trace includes a ground wire, the The ground wire is disposed at the edge of the touch electrode.
  • the ground trace when the touch electrode layer is disposed on the discharge layer, or when the touch electrode layer is integrated on the light emitting device layer, the ground trace includes a source and drain Wiring, the source-drain wiring is disposed on the array substrate.
  • the constituent material of the discharge layer includes a transparent conductive material.
  • An embodiment of the present invention also provides a display screen module, the display module includes a display screen, and a flexible circuit board bonded to the display screen;
  • the display screen includes: an array substrate, a light emitting device layer, a thin film encapsulation layer, a discharge layer, and a ground trace;
  • the light emitting device layer is provided on the array substrate;
  • the thin-film encapsulation layer is provided on the light-emitting device layer;
  • the discharge layer is provided on the thin film encapsulation layer, and the discharge layer is connected to the ground trace;
  • the ground wiring in the display screen is grounded through the flexible circuit board.
  • the display screen further includes a touch electrode layer
  • the touch electrode layer is provided on the thin film encapsulation layer, and the discharge layer is provided on the touch electrode layer;
  • the touch electrode layer is provided on the discharge layer; or
  • the touch electrode layer is integrated on the light emitting device layer.
  • the light emitting device layer includes a cathode layer; after the cathode layer is patterned, the touch electrode layer is formed.
  • the display screen further includes a polarizer
  • the polarizer is provided on the discharge layer
  • the polarizer is provided on the touch electrode layer
  • the polarizer is disposed on the discharge layer.
  • the impedance range of the discharge layer is 100-150 ohms
  • the impedance range of the discharge layer is 10 8 -10 9 ohm.
  • the ground trace when the touch electrode layer is provided on the thin film encapsulation layer and the discharge layer is provided on the touch electrode layer, the ground trace includes a ground wire, the The ground wire is disposed at the edge of the touch electrode.
  • the ground trace when the touch electrode layer is disposed on the discharge layer, or when the touch electrode layer is integrated on the light emitting device layer, the ground trace includes a source and drain Wiring, the source-drain wiring is disposed on the array substrate.
  • the constituent material of the discharge layer includes a transparent conductive material.
  • the polarizer, the display screen and the display screen module of the embodiments of the present invention improve the anti-static capability of the display screen by providing a discharge layer connected to the ground trace.
  • FIG. 1 is a schematic structural diagram of a polarizer provided by an embodiment of the present invention.
  • FIG. 2 is a first schematic structural diagram of a display screen module provided by an embodiment of the present invention.
  • FIG. 3 is a second schematic structural diagram of a display module provided by an embodiment of the present invention.
  • FIG. 4 is a third schematic structural diagram of a display screen module provided by an embodiment of the present invention.
  • FIG. 5 is a fourth schematic structural diagram of a display module provided by an embodiment of the present invention.
  • FIG. 6 is a fifth schematic structural diagram of a display screen module provided by an embodiment of the present invention.
  • FIG. 7 is a sixth schematic structural diagram of a display module provided by an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a polarizer provided by an embodiment of the present invention.
  • the polarizer 1 includes a discharge layer 11 and a polarizing layer 12, wherein the polarizing layer 12 is provided on the discharge layer 11.
  • the polarizing layer 12 transmits light that vibrates in a certain direction.
  • the polarizing layer 12 may be a transmissive polarizing layer, a reflective polarizing layer or a semi-transmissive polarizing layer, and the type of the polarizing layer 12 is not specifically limited here.
  • the discharge layer 11 is made of conductive materials, such as metallic materials, some conductive non-metallic materials, and semiconductor materials.
  • the conductive material may be a transparent conductive material, such as indium tin oxide (ITO).
  • the conductive material is a conductive material with a relatively high impedance, and the impedance range of the discharge layer 11 is controlled between 10 8 -10 9 ohm.
  • the discharge layer 11 is connected to a ground trace in the display screen, where the ground trace may be a ground trace, or a grounded source-drain trace, or the like.
  • a conductive line may be provided along the height direction of the display screen of the stacked structure, and then the discharge layer 11 is connected to the ground trace through the conductive line.
  • the discharge layer 11 discharges the static electricity received by the display screen through the grounding wiring.
  • the polarizing layer provided by the embodiment of the present invention improves the anti-static capability of the display screen by providing a discharge layer connected to the ground trace in the display screen.
  • FIG. 2 to FIG. 4 are schematic structural diagrams of a display module provided by an embodiment of the present invention.
  • the display screen module 2 includes a display screen 3 and a flexible circuit board 4 bonded to the display screen 3.
  • the display screen 3 includes an array substrate 31, a light emitting device layer 32, a thin film encapsulation layer 33, a discharge layer 34, and a ground trace (not shown in the figure).
  • the array substrate 31 includes a substrate, a buffer layer, a thin film transistor, and other structures.
  • the substrate may be a flexible substrate or a rigid substrate, such as a glass substrate or a polyimide substrate.
  • the buffer layer may be a multilayer film structure composed of SiO x and SiN x .
  • the thin film transistor is used to control the display of the display screen. Thin film transistors generally include two metal layers, two insulating layers, an active layer and an ohmic contact layer.
  • the light emitting device layer 32 is provided on the array substrate 31.
  • the light emitting device layer 32 includes an anode layer, an organic light emitting layer, and a cathode layer that are sequentially stacked, wherein the anode layer is provided on the array substrate 31.
  • the organic light emitting layer is composed of an electron transport layer (ETL), a light emitting layer (EL), and a hole transport layer (HTL).
  • the constituent material of the cathode layer may include one or more of metals such as lithium, calcium, lithium, aluminum, and silver.
  • the material of the anode layer may be a metal oxide, such as indium tin oxide.
  • the thin film encapsulation layer 33 is provided on the light emitting device layer 32.
  • the thin-film encapsulation layer 33 is composed of materials such as SiN x and SiO 2 .
  • the thin-film encapsulation layer 33 is used to protect the light-emitting device layer 32 and the array substrate 31 in the display screen 2 from being corroded by water vapor and oxygen.
  • the discharge layer 34 is provided on the thin film encapsulation layer 33.
  • the discharge layer 34 is made of conductive materials, such as metallic materials, some conductive non-metallic materials, and semiconductor materials.
  • the conductive material may be a transparent conductive material, such as indium tin oxide (ITO).
  • ITO indium tin oxide
  • the conductive material is a conductive material with a relatively high impedance, and the impedance range of the discharge layer 34 can be controlled between 10 8 -10 9 ohm.
  • the discharge layer 34 is connected to the ground trace.
  • the grounding traces include grounding traces, and source and drain traces grounded through the flexible circuit board 4.
  • a conductive line 37 may be provided along the height direction of the display screen of the stacked structure, and the discharge layer 11 is connected to the ground trace through the conductive line.
  • the display screen 3 further includes a touch electrode layer 35.
  • the touch electrode layer 35 includes multiple touch sensing lines and multiple driving sensing lines.
  • the touch electrode layer 35 is used to realize a touch function.
  • the touch electrode layer 35 is disposed on the thin film encapsulation layer 33, and the discharge layer 34 is disposed on the touch electrode layer 35, that is, the display screen 3 may be an on-cell structure touch screen.
  • the discharge layer 34 is disposed above the touch electrode layer 35, and the impedance range of the discharge layer 34 can be set to 10 8 -10 9 ohm, which can prevent the signal of the touch electrode layer 35 from being shielded. Furthermore, it is also possible to avoid the interference of the external electric field on the liquid crystal in the liquid crystal display device.
  • the ground trace includes a ground line, and the ground line is disposed at the edge of the touch electrode layer 35.
  • the discharge layer 34 is connected to the ground. Specifically, as shown in FIG. 5, the discharge layer 34 is connected to the ground wire through the conductive wire 37, and the ground wire is grounded through the flexible circuit board 4 provided on the touch electrode layer 35.
  • the discharge layer 34 can discharge the static electricity received by the display screen 3.
  • the touch electrode layer 35 is disposed on the discharge layer 34, that is, the display screen 3 may be an out-cell structure touch screen. At this time, the touch electrode layer 35 is disposed above the discharge layer 34, and the impedance range of the discharge layer 34 may be set between 100-150 ohms, so that the discharge layer 34 has better antistatic performance.
  • the touch electrode layer 35 is integrated on the light emitting device layer 32, that is, the display screen 3 may be an in-cell structure touch screen.
  • the cathode layer in the light-emitting device layer 32 is patterned to have a touch function, that is, the cathode is equivalent to the touch electrode layer 35.
  • the discharge layer 34 is disposed above the touch electrode layer 35, and the impedance range of the discharge layer 34 can be set to 10 8 -10 9 ohm. This can prevent the signal of the touch electrode layer 35 from being shielded. Furthermore, it is also possible to avoid the interference of the external electric field on the liquid crystal in the liquid crystal display device.
  • the ground trace includes a source-drain trace, and the source-drain trace is disposed at the edge of the array substrate 31.
  • the discharge layer 34 is connected to the source and drain traces through the conductive lines 37, and the source and drain traces are grounded through the flexible circuit board 4 provided on the array substrate 1.
  • the discharge layer 34 is connected to the source and drain traces, and discharges the static electricity received by the display screen 3 when the display screen 3 is in an environment with high static electricity.
  • the display screen 3 further includes a polarizer 36.
  • the polarizer 36 is used to transmit light that vibrates in a certain direction.
  • the polarizer 36 may be a transmissive polarizer, a reflective polarizer, or a semi-transmissive polarizer, and the type of the polarizer 36 is not specifically limited here.
  • the polarizer 36 is provided on the discharge layer 34.
  • the polarizer 36 is provided on the touch electrode layer 35.
  • the touch electrode layer 35 is integrated on the light emitting device layer 32, the polarizer 36 is provided on the discharge layer 34.
  • the display screen and the display screen module according to the embodiments of the present invention improve the anti-static capability of the display screen by providing a discharge layer connected to the ground trace.

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  • Theoretical Computer Science (AREA)
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  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
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Abstract

一种偏光片（1），包括放电层（34）和设置在放电层上的偏光层（12）；放电层，与显示屏中的接地走线连接。还公开了一种显示屏（3），包括阵列基板（31）、发光器件层（32）、薄膜封装层（33）、放电层和接地走线；发光器件层，设置在阵列基板上；薄膜封装层，设置在发光器件层上；放电层，设置在薄膜封装层上，放电层与接地走线连接。还公开了一种显示屏模组（2）。

Description

偏光片、显示屏和显示屏模组 技术领域
本发明涉及显示技术领域，特别是涉及一种偏光片、显示屏和显示屏模组。
 背景技术
AMOLED（Active-matrix organic light emitting diode，有源矩阵有机发光二极体）显示屏具有响应快、可视角度大和可柔性显示等优点，在显示领域占主导地位。
当AMOLED显示屏处于局部静电场较强的环境时，AMOLED里的电子元件会因静电产生较大电流，受到损伤，导致AMOLED显示屏显示画面出现异常。
 技术问题
本发明的目的在于提供一种偏光片、显示屏和显示屏模组，提高了显示屏的防静电能力。
 技术解决方案
本发明实施例提供了一种偏光片，应用于显示屏，所述偏光片包括：放电层和设置在所述放电层上的偏光层；所述放电层，与所述显示屏中的接地走线连接。
在一些实施例中，所述放电层的阻抗范围为10 8-10 9欧姆。
本发明实施例还提供了一种显示屏，包括：阵列基板、发光器件层、薄膜封装层、放电层和接地走线；
所述发光器件层，设置在所述阵列基板上；
所述薄膜封装层，设置在所述发光器件层上；
所述放电层，设置在所述薄膜封装层上，所述放电层与所述接地走线连接。
在一些实施例中，所述显示屏还包括触控电极层；
所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上；或
所述触控电极层，设置在所述放电层上；或
所述触控电极层，集成在所述发光器件层上。
在一些实施例中，所述发光器件层包括阴极层；所述阴极层图案化后，形成所述触控电极层。
在一些实施例中，所述显示屏还包括偏光片；
当所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上时，所述偏光片设置在所述放电层上；
当所述触控电极层，设置在所述放电层上时，所述偏光片设置在所述触控电极层上；
当所述触控电极层，集成在所述发光器件层上时，所述偏光片设置在所述放电层上。
在一些实施例中，当所述触控电极层设置在所述放电层上方时，所述放电层的阻抗范围为100-150欧姆；
当所述放电层设置在所述触控电极层上方时，所述放电层的阻抗范围为10 8-10 9欧姆。
在一些实施例中，当所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上时，所述接地走线包括地线，所述地线设置在所述触控电极的边缘。
在一些实施例中，当所述触控电极层，设置在所述放电层上，或当所述触控电极层，集成在所述发光器件层上时，所述接地走线包括源漏极走线，所述源漏极走线设置在所述阵列基板上。
在一些实施例中，所述放电层的组成材料包括透明导电材料。
本发明实施例还提供了一种显示屏模组，所述显示模组包括显示屏，和与所述显示屏邦定的柔性线路板；
所述显示屏包括：阵列基板、发光器件层、薄膜封装层、放电层和接地走线；
所述发光器件层，设置在所述阵列基板上；
所述薄膜封装层，设置在所述发光器件层上；
所述放电层，设置在所述薄膜封装层上，所述放电层与所述接地走线连接；
所述显示屏中的接地走线，通过所述柔性线路板接地。
在一些实施例中，所述显示屏还包括触控电极层；
所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上；或
所述触控电极层，设置在所述放电层上；或
所述触控电极层，集成在所述发光器件层上。
在一些实施例中，所述发光器件层包括阴极层；所述阴极层图案化后，形成所述触控电极层。
在一些实施例中，所述显示屏还包括偏光片；
当所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上时，所述偏光片设置在所述放电层上；
当所述触控电极层，设置在所述放电层上时，所述偏光片设置在所述触控电极层上；
当所述触控电极层，集成在所述发光器件层上时，所述偏光片设置在所述放电层上。
在一些实施例中，当所述触控电极层设置在所述放电层上方时，所述放电层的阻抗范围为100-150欧姆；
当所述放电层设置在所述触控电极层上方时，所述放电层的阻抗范围为10 8-10 9欧姆。
在一些实施例中，当所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上时，所述接地走线包括地线，所述地线设置在所述触控电极的边缘。
在一些实施例中，当所述触控电极层，设置在所述放电层上，或当所述触控电极层，集成在所述发光器件层上时，所述接地走线包括源漏极走线，所述源漏极走线设置在所述阵列基板上。
在一些实施例中，所述放电层的组成材料包括透明导电材料。
 有益效果
本发明实施例的偏光片、显示屏和显示屏模组，通过设置与接地走线连接的放电层，提高了显示屏的防静电能力。
 附图说明
为让本发明的上述内容能更明显易懂，下文特举优选实施例，并配合所附图式，作详细说明如下：
图1为本发明实施例提供的偏光片的结构示意图；
图2为本发明实施例提供的显示屏模组的第一结构示意图；
图3为本发明实施例提供的显示屏模组的第二结构示意图；
图4为本发明实施例提供的显示屏模组的第三结构示意图；
图5为本发明实施例提供的显示屏模组的第四结构示意图；
图6为本发明实施例提供的显示屏模组的第五结构示意图；
图7为本发明实施例提供的显示屏模组的第六结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
在图中，结构相似的单元是以相同标号表示。
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发明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。
本发明实施例提供了一种偏光片，该偏光片应用于显示屏。其中，显示屏包括接地走线，比如地线、通过柔性线路板接地的源漏极走线等。请参照图1，图1为本发明实施例提供的偏光片的结构示意图。该偏光片1包括放电层11和偏光层12，其中偏光层12设置在放电层11上。
偏光层12用于使沿一定方向振动的光透过。其中，偏光层12可以为透射型偏光层、反射型偏光层或半透射型偏光层，在此不对偏光层12的类型做具体限定。
放电层11由导电材料制备，比如金属材料，一些导电非金属材料以及半导体材料等等。在一实施例中，该导电材料可以为透明的导电材料，比如氧化铟锡（ITO）。在一实施例中，该导电材料为具有较高阻抗的导电材料，将放电层11的阻抗范围控制在10 8-10 9欧姆之间。放电层11与显示屏中的接地走线连接，其中，该接地走线可以为地线，或者接地的源漏极走线等。具体的，可以沿层叠结构的显示屏的高度方向，设置导电线，再通过该导电线将放电层11与接地走线连接。综上，当显示屏处于局部静电较大的环境中时，放电层11通过接地走线，将显示屏受到的静电释放。
本发明实施例提供的偏光层，通过设置与显示屏中接地走线连接的放电层，提高了显示屏抗静电的能力。
本发明实施例还提供了一种显示屏模组。请参照图2-图4，图2-图4均为本发明实施例提供的显示屏模组的结构示意图。该显示屏模组2包括显示屏3和与该显示屏3邦定的柔性线路板4。显示屏3包括阵列基板31、发光器件层32、薄膜封装层33、放电层34和接地走线（图未示出）。
阵列基板31包括基板、缓冲层和薄膜晶体管等结构。其中，基板可以为柔性基板，也可以为刚性基板，比如玻璃基板、聚酰亚胺基板。缓冲层可以是由SiO x、SiN x组成的多层膜结构。薄膜晶体管用于控制显示屏画面的显示。薄膜晶体管一般包括两层金属层，两层绝缘层，一层有源层和一层欧姆接触层。
发光器件层32设置在阵列基板31上。发光器件层32包括依次层叠设置的阳极层、有机发光层和阴极层，其中阳极层设置在阵列基板31上。有机发光层由电子传输层（ETL）、发光层（EL）和空穴传输层（HTL）等结构组成。阴极层的组成材料可以包括锂、钙、锂、铝以及银等金属中的一种或多种。阳极层的组成材料可以为金属氧化物，比如氧化铟锡。
薄膜封装层33设置在发光器件层32上。薄膜封装层33由SiN x、SiO 2等材料组成。薄膜封装层33用于保护显示屏2内的发光器件层32、阵列基板31等结构不被水汽和氧气侵蚀。
放电层34设置在薄膜封装层33上。放电层34由导电材料制备，比如金属材料，一些导电非金属材料以及半导体材料等等。在一实施例中，该导电材料可以为透明的导电材料，比如氧化铟锡（ITO）。在一实施例中，该导电材料为具有较高阻抗的导电材料，可以将放电层34的阻抗范围控制在10 8-10 9欧姆之间。
放电层34与接地走线连接。其中，接地走线包括地线，以及通过柔性线路板4接地的源漏极走线等。具体的，如图3和图4所示，可以沿层叠结构的显示屏的高度方向，设置导电线37，通过该导电线将放电层11与接地走线连接。当显示屏3处于局部静电较大的环境中时，可以将静电释放。
在一些实施例中，如图2-图4所示，显示屏3还包括触控电极层35。其中，触控电极层35包括多条触控感应线和多条驱动感应线。该触控电极层35用于实现触控功能。
在一些实施例中，如图2所示，触控电极层35设置在薄膜封装层33上，放电层34设置在触控电极层35上，即显示屏3可以为on-cell结构的触摸屏。此时，放电层34设置在触控电极层35上方，可以将放电层34的阻抗范围设置为10 8-10 9欧姆，这样可以防止触控电极层35的信号被屏蔽。进一步的，还可以避免对液晶显示装置中的液晶受外界电场的干扰。
在on-cell结构的显示屏3中，接地走线包括地线，该地线设置在该触控电极层35的边缘。放电层34与地线连接。具体的，如图5所示，放电层34通过导电线37连接地线，该地线通过设置在触控电极层35上的柔性线路板4接地。综上，当显示屏3处于静电较大的环境时，放电层34可以将显示屏3受到的静电释放。
在一些实施例中，如图3所示，触控电极层35设置在放电层34上，即显示屏3可以为out-cell结构的触摸屏。此时，触控电极层35设置在放电层34的上方，可以将放电层34的阻抗范围设置为100-150欧姆之间，以使放电层34具有较好的防静电性能。
在一些实施例中，如图4所示，触控电极层35集成在发光器件层32上，即显示屏3可以为in-cell结构的触摸屏。具体的，对发光器件层32中的阴极层进行图案化，使之具有触控功能，即该阴极等价于触控电极层35。此时，放电层34设置在触控电极层35上方，可以将放电层34的阻抗范围设置为10 8-10 9欧姆。这样可以防止触控电极层35的信号被屏蔽。进一步的，还可以避免对液晶显示装置中的液晶受外界电场的干扰。
如图3和图4所示，在out-cell结构和in-cell结构的显示屏3中，接地走线包括源漏极走线，该源漏极走线设置在阵列基板31的边缘。如图6和图7所示，放电层34通过导电线37连接源漏极走线，该源漏极走线通过设置在阵列基板1上的柔性线路板4接地。放电层34与源漏极走线连接，当显示屏3处于静电较大的环境时，将显示屏3受到的静电释放。
在一些实施例中，如图2-图4所示，显示屏3还包括偏光片36。该偏光片36用于使沿一定方向振动的光透过。其中，偏光片36可以为透射型偏光片、反射型偏光片或半透射型偏光片，在此不对偏光片36的类型做具体限定。
如图2所示，当触控电极层35设置在薄膜封装层33上，放电层34设置在触控电极层35上时，偏光片36设置在放电层34上。如图3所示，当触控电极层35设置在放电层34上时，偏光片36设置在触控电极层35上。如图4所示，当触控电极层35集成在发光器件层32上时，偏光片36设置在放电层34上。
本发明实施例的显示屏和显示屏模组，通过设置与接地走线连接的放电层，提高了显示屏的防静电能力。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (18)

  1. 一种偏光片，应用于显示屏，其包括：放电层和设置在所述放电层上的偏光层；所述放电层，与所述显示屏中的接地走线连接。
  2. 根据权利要求1所述的偏光片，其中，所述放电层的阻抗范围为10 8-10 9欧姆。
  3. 一种显示屏，其包括：阵列基板、发光器件层、薄膜封装层、放电层和接地走线；
    所述发光器件层，设置在所述阵列基板上；
    所述薄膜封装层，设置在所述发光器件层上；
    所述放电层，设置在所述薄膜封装层上，所述放电层与所述接地走线连接。
  4. 根据权利要求3所述的显示屏，其中，所述显示屏还包括触控电极层；
    所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上；或
    所述触控电极层，设置在所述放电层上；或
    所述触控电极层，集成在所述发光器件层上。
  5. 根据权利要求4所述的显示屏，其中，所述发光器件层包括阴极层；所述阴极层图案化后，形成所述触控电极层。
  6. 根据权利要求4所述的显示屏，其中，所述显示屏还包括偏光片；
    当所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上时，所述偏光片设置在所述放电层上；
    当所述触控电极层，设置在所述放电层上时，所述偏光片设置在所述触控电极层上；
    当所述触控电极层，集成在所述发光器件层上时，所述偏光片设置在所述放电层上。
  7. 根据权利要求4所述的显示屏，其中，
    当所述触控电极层设置在所述放电层上方时，所述放电层的阻抗范围为100-150欧姆；
    当所述放电层设置在所述触控电极层上方时，所述放电层的阻抗范围为10 8-10 9欧姆。
  8. 根据权利要求4所述的显示屏，其中，当所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上时，所述接地走线包括地线，所述地线设置在所述触控电极的边缘。
  9. 根据权利要求4所述的显示屏，其中，当所述触控电极层，设置在所述放电层上，或当所述触控电极层，集成在所述发光器件层上时，所述接地走线包括源漏极走线，所述源漏极走线设置在所述阵列基板上。
  10. 根据权利要求3所述的显示屏，其中，所述放电层的组成材料包括透明导电材料。
  11. 一种显示屏模组，其包括显示屏，和与所述显示屏邦定的柔性线路板；
    所述显示屏包括：阵列基板、发光器件层、薄膜封装层、放电层和接地走线；
    所述发光器件层，设置在所述阵列基板上；
    所述薄膜封装层，设置在所述发光器件层上；
    所述放电层，设置在所述薄膜封装层上，所述放电层与所述接地走线连接；
    所述显示屏中的接地走线，通过所述柔性线路板接地。
  12. 根据权利要求11所述的显示屏模组，其中，所述显示屏还包括触控电极层；
    所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上；或
    所述触控电极层，设置在所述放电层上；或
    所述触控电极层，集成在所述发光器件层上。
  13. 根据权利要求12所述的显示屏模组，其中，所述发光器件层包括阴极层；所述阴极层图案化后，形成所述触控电极层。
  14. 根据权利要求12所述的显示屏模组，其中，所述显示屏还包括偏光片；
    当所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上时，所述偏光片设置在所述放电层上；
    当所述触控电极层，设置在所述放电层上时，所述偏光片设置在所述触控电极层上；
    当所述触控电极层，集成在所述发光器件层上时，所述偏光片设置在所述放电层上。
  15. 根据权利要求12所述的显示屏模组，其中，
    当所述触控电极层设置在所述放电层上方时，所述放电层的阻抗范围为100-150欧姆；
    当所述放电层设置在所述触控电极层上方时，所述放电层的阻抗范围为10 8-10 9欧姆。
  16. 根据权利要求12所述的显示屏模组，其中，当所述触控电极层，设置在所述薄膜封装层上，所述放电层，设置在所述触控电极层上时，所述接地走线包括地线，所述地线设置在所述触控电极的边缘。
  17. 根据权利要求12所述的显示屏模组，其中，当所述触控电极层，设置在所述放电层上，或当所述触控电极层，集成在所述发光器件层上时，所述接地走线包括源漏极走线，所述源漏极走线设置在所述阵列基板上。
  18. 根据权利要求11所述的显示屏模组，其中，所述放电层的组成材料包括透明导电材料。
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