WO2017140033A1 - 阵列基板及其制造方法和显示面板 - Google Patents

阵列基板及其制造方法和显示面板 Download PDF

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Publication number
WO2017140033A1
WO2017140033A1 PCT/CN2016/080873 CN2016080873W WO2017140033A1 WO 2017140033 A1 WO2017140033 A1 WO 2017140033A1 CN 2016080873 W CN2016080873 W CN 2016080873W WO 2017140033 A1 WO2017140033 A1 WO 2017140033A1
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Prior art keywords
light
layer
blue
color
pixel region
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Ceased
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PCT/CN2016/080873
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English (en)
French (fr)
Inventor
江亮亮
郭磊
戴珂
尹傛俊
杨峰
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Priority to US15/522,752 priority Critical patent/US20180088416A1/en
Publication of WO2017140033A1 publication Critical patent/WO2017140033A1/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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • 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
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    • G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
    • 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
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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
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    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G02F1/133621—Illuminating devices providing coloured light
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
    • 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
    • G02F1/133628—Illuminating devices with cooling means
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
    • 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
    • G02F2201/44—Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers

Definitions

  • the present invention relates to the field of display technologies, and in particular, to an array substrate, a method of manufacturing the same, and a display panel.
  • a liquid crystal display (LCD) using a Thin Film Transistor (TFT) array is a passive light-emitting flat panel display device in which a liquid crystal panel itself cannot emit light, and a normal display function can be realized by setting a backlight.
  • FIG. 1 a schematic structural view of a liquid crystal display panel in the prior art is schematically illustrated, wherein white light emitted by a backlight (not shown) sequentially passes through the array substrate 201 , the liquid crystal layer 202 , and the color filter substrate. After 203 (Color Filter, CF), each sub-pixel finally emits red/green/blue (R/G/B) three-color light.
  • CTR cathode ray tube displays
  • LCD has replaced CRT displays in many fields.
  • a liquid crystal display requires a uniform brightness, energy-saving, and light-weight backlight.
  • Light Emitting Diode (LED) is gradually replacing the cold cathode fluorescent tube because of the above-mentioned outstanding advantages.
  • Cold Cathode Fluorescent Lamp, CCFL Cold Cathode Fluorescent Lamp
  • FIG. 1 wherein the LED mainly uses a blue chip 204 as an excitation source, and a surface of the blue chip 204 is coated with a phosphor 205 such as Y (YAG, yttrium aluminum garnet) powder.
  • the phosphor layer 205 is fixed at the center of the blue chip. After the blue chip is powered, blue light is emitted, and the phosphor coated on the surface is excited, and after mixing the two colors, white light having a spectrum covering the visible light region of 380 to 780 nm is formed as a backlight.
  • the main emission peak of the white light emitted by the backlight exists in the blue tip of 440-450 nm, the narrow peak and the yellow wide peak of 500-650 nm, respectively corresponding to the emission peak after the blue chip is powered on and the emission peak after the phosphor is excited.
  • the white light is regulated by the gray scale of the liquid crystal layer, and then passes through the R/G/B color resistance of the surface of the color filter, and finally presents a picture with controllable brightness and rich colors.
  • the current structure of the blue chip + phosphor in the LED has the following problems: coating process and precision
  • the limitation is easy to cause uneven coating of the phosphor on the surface of the blue chip, affecting the uniformity of light emission and spectral stability; the blue chip is prone to heat after being charged, and the surface coated with the phosphor is not conducive to heat dissipation of the chip, and the chip is lowered. And the life of the phosphor, ultimately affecting the life of the LED.
  • the present invention provides an array substrate, a method of manufacturing the same, and a display panel, which can reduce aging caused by heat generation of the phosphor and the blue chip.
  • the present invention provides an array substrate including a light transmissive layer formed on a layer where a source drain pattern is located and covering the entire layer, the light transmissive layer being capable of emitting a first color in an external backlight The light of the second color is emitted by the excitation of the light, and the light of the second color is used to form white light.
  • the array substrate includes a pixel electrode layer formed on the light transmissive layer, the pixel electrode layer includes a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region, where the first color
  • the light is blue light, wherein a portion of the light transmissive layer corresponding to the red sub-pixel region and the green sub-pixel region is doped with phosphor, and is capable of emitting white light under blue light excitation of the external backlight.
  • a portion of the light transmissive layer corresponding to the blue sub-pixel region is doped with a phosphor, and is capable of emitting white light under blue light excitation of the external backlight.
  • a portion of the light transmissive layer corresponding to the blue sub-pixel region is undoped with phosphor, and is capable of transmitting blue light emitted by an external backlight.
  • the light transmissive layer is formed of a transparent resin.
  • the present invention further provides a liquid crystal display panel comprising the above array substrate provided by any one of the embodiments of the present invention.
  • the liquid crystal display panel further includes a color filter substrate disposed opposite to the array substrate, wherein the color filter substrate is provided with a red filter unit corresponding to a red sub-pixel region, and a green filter corresponding to the green sub-pixel region. A light unit and a blue filter unit corresponding to the blue sub-pixel region.
  • the blue filter In a case where the portion of the light transmissive layer corresponding to the blue sub-pixel region in the array substrate is undoped with phosphor and is capable of transmitting blue light emitted by an external backlight, the blue filter The light unit completely transmits the blue light emitted by the external backlight.
  • the liquid crystal display panel further includes a blue backlight.
  • the blue backlight is a blue light emitting diode.
  • the surface of the blue backlight is coated with a resin layer for heat conduction.
  • the present invention also provides a method for manufacturing an array substrate, comprising the steps of: on a glass substrate Forming a thin film transistor array thereon; forming a light transmissive layer on a layer of the source/drain pattern of the thin film transistor array, the light transmissive layer covering the entire layer capable of emitting under the excitation of the first color light emitted by the external backlight a light of a second color, the light of the second color is used to form white light; and a pixel electrode layer is formed on the light transmissive layer, the pixel electrode layer including a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region.
  • the step of forming a light transmissive layer on the source/drain pattern layer of the thin film transistor array includes: coating a transparent resin material doped with phosphor on the source and drain pattern layer; The process removes a portion of the coated transparent resin material corresponding to the blue sub-pixel region to constitute a light transmissive layer.
  • the step of forming a light transmissive layer on the source/drain pattern layer of the thin film transistor array includes: coating a transparent resin material doped with phosphor on the source and drain pattern layer to form a transparent Light layer.
  • the method further includes the step of forming a passivation layer between the source drain pattern layer and the light transmissive layer.
  • the array substrate provided by the present invention can overcome the problem of uneven coating of phosphor in a conventional backlight without increasing the process process and mask cost of the existing array substrate, and contains phosphor.
  • the organic resin is coated on the surface of the glass substrate, the distribution is uniform, the uniformity of luminescence and the spectral stability are greatly improved, and the luminescence uniformity and spectral stability of the phosphor after being excited by blue light are improved; the heat dissipation of the chip, the blue chip and the phosphor are favorable. Increased stability and improved chip life.
  • a light transmissive layer can be formed by a photolithography process using a phosphor-containing organic resin instead of a passivation layer, and the liquid organic resin is doped with a phosphor, which can greatly improve fluorescence.
  • FIG. 1 is a highly schematic structural view of a liquid crystal display panel in the prior art
  • FIG. 2 is a highly schematic structural view of an array substrate according to an embodiment of the invention.
  • FIG. 3 is a highly schematic structural view of an array substrate according to another embodiment of the present invention.
  • FIG. 4 is a highly schematic structural view of a liquid crystal display panel according to an embodiment of the present invention.
  • an embodiment of the present invention provides an array substrate including a light transmissive layer formed on a layer of a source/drain pattern of a thin film crystal array and covering the entire layer, the light transmissive layer capable of In The light of the second color is emitted by the excitation of the light of the first color emitted by the external backlight, and the light of the second color is used to form white light.
  • the array substrate provided by the present invention has a light transmissive layer, which can be used to turn the light of the external backlight into white light without affecting the light emitting effect, and at the same time, the light transmissive layer is disposed on the array substrate.
  • the light transmissive layer can also function as a passivation layer (PVX).
  • the array substrate in the prior art generally needs to be fabricated by a photolithography process, and sequentially prepare a gate, an active layer, a source/drain (S/D, Source/Drain), and a SiNX (silicon nitride) passivation. Layer, pixel electrode (Pixel ITO) and other structures.
  • a photolithography process and sequentially prepare a gate, an active layer, a source/drain (S/D, Source/Drain), and a SiNX (silicon nitride) passivation.
  • Layer, pixel electrode (Pixel ITO) and other structures In an embodiment of the present invention, as shown in FIG.
  • the phosphor may be doped or filled into a material (for example, a transparent resin) for forming the light transmissive layer 301, and then on the array substrate (specifically, , for example, on the source/drain pattern layer of the array substrate or on the passivation layer formed on the source/drain pattern layer), the light transmissive layer 301 is formed on the gate insulating layer 302, the thin film transistor
  • the array 306 including the source and drain patterns 3061 disposed on the top layer thereof
  • the glass substrate 305 of the data line 303 are disposed on the light transmissive layer 301. As shown in FIG.
  • the light transmissive layer 301 replaces the passivation layer on the array substrate in the prior art, thereby not increasing the fabrication process and process cost of the array substrate.
  • a passivation layer may also be provided in another embodiment and the light transmissive layer 301 may be disposed on the passivation layer (not shown).
  • the array substrate includes a pixel electrode layer (eg, a pixel electrode layer 304) formed on the light transmissive layer 301, and the pixel electrode layer includes a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region, first The light of the color is blue light, and the portion of the light transmissive layer corresponding to the red sub-pixel region and the green sub-pixel region is doped with phosphor, and can emit white light under blue light excitation of the external backlight.
  • a pixel electrode layer eg, a pixel electrode layer 304 formed on the light transmissive layer 301
  • the pixel electrode layer includes a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region, first The light of the color is blue light, and the portion of the light transmissive layer corresponding to the red sub-pixel region and the green sub-pixel region is doped with phosphor, and can emit white light under blue light excitation of the external backlight.
  • a method for manufacturing the above array substrate comprising the steps of: forming a thin film transistor array on a glass substrate; forming light transmission on a layer of the source/drain pattern of the thin film transistor array a layer, the light transmissive layer covers the entire layer and is capable of emitting a second color of light under excitation of a first color of light emitted by an external backlight, the second color of light is used to form white light; and forming a pixel electrode on the light transmissive layer
  • the layer, the pixel electrode layer includes a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region.
  • a metal layer having a predetermined thickness (for example, Al (aluminum) or Mo (molybdenum)) is first deposited as a gate pattern layer on a surface of the glass substrate 305 by a sputtering process, and passed through a photoresist.
  • a gate pattern is formed by a process such as coating, exposure, development, acid etching, or the like.
  • PECVD plasma enhanced chemical vapor deposition
  • a layer of SiNx is deposited on the surface of 305 to form a gate insulating layer 302.
  • a metal layer for example, Al or Mo
  • a source/drain pattern 3061 is formed by a photoresist coating, exposure, development, acid etching, or the like.
  • a layer of SiNx is deposited on the surface of the substrate by a PECVD method to form an insulating layer, and a passivation layer pattern corresponding to the blue sub-pixel is formed by a photoresist coating, exposure, development, dry etching, or the like.
  • a black matrix is coated on the surface of the substrate by using a coating device on the surface of the color filter substrate, and a black matrix pattern corresponding to the R/G/B sub-pixel is formed through exposure and development processes;
  • a red, green, and blue color developing region is corresponding to the surface of the color filter substrate, and a photosensitive organic resin is coated by a coating device, mask exposure and development, and a red/green/white (R/G/W) color resist pattern is formed.
  • the pure blue LED is used as the backlight module, and the emitted blue light sequentially penetrates the insulating layer of the array substrate: the blue light passing through the red and green sub-pixel regions is absorbed by the phosphor to emit white light, and the white light is subjected to conventional control to display the gray scale liquid crystal.
  • the blue light sub-pixel area is a white organic resin layer which reduces the difference of the color film substrate, and is sequentially controlled to display gray scale.
  • the liquid crystal layer blue light is emitted; finally, full color display of red, green and blue is displayed, and the overall transmittance of the blue sub-pixel and the liquid crystal display panel is greatly improved.
  • the pattern of the red and green sub-pixel regions may be first formed, and then the passivation layer pattern corresponding to the blue sub-pixels may be formed.
  • the light of the second color may be white light or monochromatic light for combining into white light.
  • the array substrate includes a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region, wherein the first color of light is blue light, wherein the light transmissive layer and the red sub-pixel
  • the portion corresponding to the region and the green sub-pixel region is doped with phosphor, and is capable of emitting white light under blue light excitation of the backlight.
  • the phosphor Since the phosphor is doped into the light transmissive layer, it can be uniformly distributed in the light transmissive layer by the doping process, thereby improving the uniformity and spectral stability of the backlight after the first light conversion, and improving the display effect. At the same time, the phosphor is far away from the light-emitting chip, and the life of the phosphor is reduced due to heat generation, and the service life of the blue chip and the phosphor is improved.
  • the light transmissive layer corresponding to the blue sub-pixel region is doped with phosphor, and can It is enough to emit white light under the blue light of the backlight.
  • the light transmissive layer corresponding to the blue sub-pixel region is undoped with phosphor, and is capable of transmitting blue light emitted by the backlight.
  • a gate insulating layer 402, a light transmitting layer 403, and a pixel electrode 404 are sequentially disposed on the base substrate 401.
  • the light transmitting layer 403 includes a region 4031 corresponding to a red sub-pixel and a region 4032 corresponding to a green sub-pixel.
  • the data line 405 is disposed between the light transmissive layer 403 and the gate insulating layer 402. Similar to FIG. 2, a thin film transistor array (including a source and drain pattern layer disposed on the top thereof) may be disposed adjacent to the data line 405 and covered by the light transmissive layer 403, which is not shown in FIG. Array.
  • a blue light chip is used in the backlight of the prior art, and a phosphor is coated on the surface of the blue chip.
  • the following problem also exists: a relatively large portion of the blue light emitted by the blue chip is used to excite the phosphor, so the blue light loss rate is large; the backlight
  • the white light mainly consists of the blue light excited by the power and the light spectrum of the blue light excited by the blue light, but the transmittance of the R:G:B color resist under the same film thickness in the liquid crystal display panel is about 3:9:1, blue light.
  • the color resistance absorbance is higher than that of red color and green color.
  • the brightness of blue light is greatly reduced after each step.
  • the backlight white light has a large loss after passing through the blue color resistance, and the human eye itself is not sensitive to blue. As a result, the blue light transmittance is low, which is a key factor that restricts the overall transmittance of the liquid crystal panel. As a result, the overall transmittance of the panel is low, and the backlight power consumption is improved. Therefore, how to increase the transmittance and brightness of the blue sub-pixels is the key to improving the transmittance of the liquid crystal panel.
  • the blue sub-pixel region in the light transmissive layer on the array substrate of the embodiment of the invention is made of a transparent material, can directly transmit blue light, reduce the loss rate of blue light, and improve the transmittance of blue light; and the array substrate of the embodiment of the invention is used.
  • the light transmittance of the display panel can also be improved.
  • the light transmissive layer is formed using a transparent resin.
  • the phosphor and the transparent organic resin monomer such as PMMA (Polymethyl Methacrylate, polymethyl methacrylate) or PC (Polycarbonate, polycarbonate), are firstly used. Stirring at a certain ratio; after preparing the gate layer (metal layer), gate insulating layer (GI), active layer, source and drain pattern layer on the surface of the glass substrate, it is ready for use; A transparent organic resin of powder is coated on the substrate; the array substrate coated with the resin is dried, exposed, developed, and post-baked; and the pixel electrode is prepared by a photolithography process.
  • PMMA Polymethyl Methacrylate, polymethyl methacrylate
  • PC Polycarbonate, polycarbonate
  • the present invention also provides a liquid crystal display panel comprising the array provided by any one of the embodiments of the present invention.
  • Column substrate
  • the array substrate and the color filter substrate are filled with liquid crystal, vacuum-packed into a panel, and the pure blue LED is used as a backlight.
  • a phosphor such as Y powder, YR powder or R/G powder is filled into a transparent organic resin, and is prepared by photolithography on a glass substrate of the array substrate instead of the conventional SiNx or SiO 2 (silicon dioxide) material.
  • the light transmissive layer replaces the passivation layer, so that the structure of the liquid crystal display panel can be simplified.
  • the liquid crystal display panel provided by the present invention can overcome the problem of uniformity of phosphor coating in the backlight of the liquid crystal display panel of the prior art by improving the doping uniformity of the phosphor incorporated into the light transmissive layer.
  • the liquid crystal display panel further includes a color filter substrate disposed opposite to the array substrate, wherein the color filter substrate is provided with a red filter unit corresponding to a red sub-pixel region, and a corresponding green sub-pixel.
  • the green filter unit of the area and the blue filter unit corresponding to the blue sub-pixel area is provided with a red filter unit corresponding to a red sub-pixel region, and a corresponding green sub-pixel.
  • the blue filter unit when the light transmissive layer corresponding to the blue sub-pixel region of the array substrate is undoped with phosphor and is capable of transmitting blue light emitted by the backlight, the blue filter unit is completely Transmitting the blue light emitted by the backlight.
  • the array substrate 501 is provided with a light transmissive layer 502.
  • the light transmissive layer portion 5021 corresponding to the red sub-pixel region on the light transmissive layer 502 is doped with a fluorescent layer corresponding to the green sub-pixel region.
  • the light-transmitting layer portion 5023 corresponding to the blue sub-pixel region is not doped with phosphor.
  • the blue light emitted by the backlight 503 is emitted through the liquid crystal layer 504 and the color filter substrate 505, and the red filter unit 5051 and the green filter unit 5052 filter the white light generated by the transmission from the light transmitting layer 502; the blue filter unit 5053 completely transmits the backlight.
  • the liquid crystal display panel of the present invention further includes a blue backlight.
  • the present invention provides a liquid crystal display comprising the liquid crystal display panel provided by any one of the embodiments of the present invention.
  • the blue backlight uses a blue light emitting diode.
  • the liquid crystal display panel is illuminated by a pure blue LED as a backlight.
  • a blue sub-pixel region is deposited with a passivation layer or a transparent organic resin; and the red and green sub-pixel regions are filled with an organic resin filled with a Y phosphor.
  • the loss caused by converting blue light into white light in the backlight and converting white light into blue light through the color film substrate is avoided in the prior art.
  • This method can greatly improve the transmittance of the blue sub-pixel and the panel, and does not reduce the color gamut of the panel, and overcomes the problem of insufficient illumination of the blue sub-pixel in the panel.
  • the white sub-pixel region is coated with a white transparent resin, and the blue light emitted by the backlight passes through the liquid crystal layer to adjust the gray scale, directly penetrates the color filter substrate, and the brightness and transmittance are greatly improved; and the red sub-pixel region is prepared on the color film substrate.
  • Each color resist layer corresponding to the green sub-pixel region after the white light is adjusted by the liquid crystal layer, is filtered by the red color resistance and the green color resistance of the corresponding region, and then emits normal red light and green light.
  • Table 1 and Table 2 below show the color gamut simulation results of the liquid crystal panel according to the embodiment of the present invention.
  • Table 1 shows the color gamut simulation results of the prior art liquid crystal panel
  • Table 2 shows the color gamut simulation results of the liquid crystal panel according to the embodiment of the present invention.
  • NTSC National Television Standards Committee (National Television Standards Committee) standard gamut value of 72.3%
  • Wx is the color coordinate of the white light along the X axis
  • Wy the white light along the Y axis color coordinate
  • Y is the brightness analog relative value
  • the backlight adopts a conventional blue LED
  • the insulating layer of the array substrate is a composite layer of a passivation layer combined with a phosphor-doped organic resin
  • the color film substrate corresponds to R/G/
  • the brightness normalization value reaches 18.6, and the brightness is nearly doubled, achieving high transmittance and high brightness without affecting the color gamut of the panel.
  • the array substrate provided by the present invention can overcome the problem of uneven coating of phosphor in a conventional backlight without increasing the process process and mask cost of the existing array substrate, and contains phosphor.
  • the organic resin is coated on the surface of the glass substrate, the distribution is uniform, the luminescence uniformity and the spectral stability are greatly improved, the luminescence uniformity and spectral stability of the phosphor after being excited by blue light are improved; the heat dissipation of the chip, the blue chip and the fluorescence are favored The stability of the powder is improved and the life of the chip is improved.
  • a light transmissive layer can be formed by a photolithography process using a phosphor-containing organic resin instead of a passivation layer, and the liquid organic resin is doped with a phosphor, which can greatly improve the phosphor.

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Abstract

一种阵列基板及其制造方法和显示面板。阵列基板包括形成在源漏极图案（3061）所在层上且覆盖整个层的透光层（301、403），透光层（301、403）能够在外部背光源发出的第一颜色的光线的激发下发出第二颜色的光线，第二颜色的光线用于形成白光。通过这种阵列基板及其制造方法和显示面板，能够减少荧光粉和蓝光芯片发热而导致的老化。

Description

阵列基板及其制造方法和显示面板
本申请要求于2016年2月19日递交的、申请号为201610094872.8、发明名称为“一种阵列基板、显示面板及液晶显示器”的中国专利申请的优先权，其全部内容通过引用并入本申请中。
技术领域
本发明涉及显示技术领域，尤其涉及一种阵列基板及其制造方法和显示面板。
背景技术
使用薄膜晶体管(Thin Film Transistor，TFT)阵列的液晶显示器(Liquid Crystal Display，LCD)是一种被动发光式平板显示装置，其中液晶屏本身不能发光，必须通过设置背光源才能实现正常的显示功能。如图1所示，高度示意性地示出了现有技术中一种液晶显示面板的结构示意图，其中背光源(未示出)发出的白光依次经过阵列基板201、液晶层202和彩膜基板203(Color Filter，CF)后，最终每个亚像素分别发射出红/绿/蓝(Red/Green/Blue，R/G/B)三色光。与阴极射线管显示器(Cahode Ray Tube，CRT)相比，液晶显示器具有很多优点，如厚度较薄，功耗较低等。因此，LCD在很多领域都已经代替了CRT显示器。
液晶显示器作为一种被动发光式显示器，需要一个亮度均一、节能高效、轻薄的背光源，而白光发光二极管(Light Emitting Diode，LED)由于具有上述所需的突出优点，正逐步取代冷阴极荧光管(Cold Cathode Fluorescent Lamp，CCFL)技术，成为目前液晶显示器的主流背光源。仍然参照图1，其中LED主要以蓝光芯片204(Blue Chip)作为激发源，在蓝光芯片204的表面上涂覆一层荧光粉(Phosphor)205，如Y(YAG，钇铝石榴石)粉、YR(Yellow Red)粉、RG(Red Green)粉等，荧光粉层205固载在蓝光芯片中心。蓝光芯片加电后发射蓝光，同时激发其表面上涂覆的荧光粉，经过两者混色后形成光谱覆盖380～780nm可见光区域的白光作为背光。背光源发出该白光的主要发射峰存在于440～450nm的蓝色尖、窄峰和500～650nm的黄色宽峰，分别对应蓝光芯片加电后的发射峰以及激发荧光粉后的发射峰。上述白光经液晶层的灰阶调控，再经过彩色滤光片表面的R/G/B色阻后，最终呈现出亮度可控、色彩丰富的画面。
但目前LED中采用蓝光芯片+荧光粉的结构存在如下问题：受涂覆工艺和精度 限制，易造成荧光粉在蓝光芯片的表面上的涂覆不均，影响发光均一性和光谱稳定性；蓝光芯片加电后容易发热，表面涂覆荧光粉后不利于芯片散热，同时降低了芯片和荧光粉的使用寿命，最终影响LED的使用寿命。
发明内容
有鉴于此，本发明提供一种阵列基板及其制造方法和显示面板，能够减少荧光粉和蓝光芯片发热而导致的老化。
基于上述目的，本发明提供一种阵列基板，所述阵列基板包括形成在源漏极图案所在层上且覆盖整个层的透光层，所述透光层能够在外部背光源发出的第一颜色的光线的激发下发出第二颜色的光线，所述第二颜色的光线用于形成白光。
可选的，所述阵列基板包括形成在所述透光层上的像素电极层，所述像素电极层包括红色亚像素区域、绿色亚像素区域和蓝色亚像素区域，所述第一颜色的光线为蓝光，其中，所述透光层的与红色亚像素区域和绿色亚像素区域相对应的部分中掺杂有荧光粉，能够在外部背光源的蓝光激发下发出白光。
可选的，所述透光层的与蓝色亚像素区域相对应的部分中掺杂有荧光粉，能够在外部背光源的蓝光激发下发出白光。
可选的，所述透光层的与蓝色亚像素区域相对应的部分中未掺杂荧光粉，能够透射外部背光源发出的蓝光。
可选的，所述透光层采用透明树脂形成。
同时，本发明还提供一种液晶显示面板，包括本发明任意一项实施例所提供的上述阵列基板。
可选的，所述液晶显示面板还包括与所述阵列基板相对设置的彩膜基板，所述彩膜基板上设置有对应红色亚像素区域的红色滤光单元、对应绿色亚像素区域的绿色滤光单元和对应蓝色亚像素区域的蓝色滤光单元。
可选的，在所述阵列基板中所述透光层的与蓝色亚像素区域相对应的部分中未掺杂荧光粉并能够透射外部背光源发出的蓝光的情况下，所述蓝色滤光单元完全透射所述外部背光源发出的蓝光。
在一实施例中，所述液晶显示面板还包括蓝光背光源。
可选的，所述蓝色背光源是蓝光发光二极管。
可选的，所述蓝色背光源的表面涂覆有用于热传导的树脂层。
进一步，本发明还提供一种用于制造阵列基板的方法，包括步骤：在玻璃基板 上形成薄膜晶体管阵列；在所述薄膜晶体管阵列的源漏极图案所在层上形成透光层，所述透光层覆盖整个层能够在外部背光源发出的第一颜色的光线的激发下发出第二颜色的光线，所述第二颜色的光线用于形成白光；和在所述透光层上形成像素电极层，所述像素电极层包括红色亚像素区域、绿色亚像素区域和蓝色亚像素区域。
在一实施例中，在所述薄膜晶体管阵列的源漏极图案层上形成透光层的步骤包括：在所述源漏极图案层上涂覆掺杂有荧光粉的透明树脂材料；通过构图工艺去除被涂覆的透明树脂材料的与蓝色亚像素区域相对应的部分，构成透光层。
在一实施例中，在所述薄膜晶体管阵列的源漏极图案层上形成透光层的步骤包括：在所述源漏极图案层上涂覆掺杂有荧光粉的透明树脂材料，构成透光层。
在一实施例中，所述方法还包括步骤：在所述源漏极图案层与所述透光层之间形成钝化层。
从上面所述可以看出，本发明所提供的阵列基板，在不增加现有阵列基板的工艺制程和掩模成本下，可以克服常规背光源中荧光粉涂覆不均的问题，含荧光粉的有机树脂涂覆在玻璃基板表面，分布均匀，发光均一性和光谱稳定性大大提高，提高荧光粉受蓝光激发后的发光均一性和光谱稳定性；有利于芯片散热，蓝光芯片和荧光粉的稳定性提高，提高芯片寿命。在本发明实施例所提供的阵列基板中，可通过光刻工艺、用含荧光粉的有机树脂制成透光层来代替钝化层，在液态有机树脂中掺杂荧光粉，能够大大提高荧光粉的分布均一性和发光效果；荧光粉远离发热的芯片，自身寿命得到提高且在显示面板中能够显著提升背光源发光均一性和使用寿命。
附图说明
图1为现有技术中的一种液晶显示面板的高度示意性结构示图；
图2为根据本发明一实施例的阵列基板的高度示意性结构示图；
图3为根据本发明另一实施例的阵列基板的高度示意性结构示图；
图4为根据本发明一实施例的液晶显示面板的高度示意性结构示图。
具体实施方式
为使本发明要解决的技术问题、所采用的技术方案和所实现的优点更加清楚，下面将结合附图及具体实施例进行详细描述。
根据本发明总的发明构思，本发明的实施例提供一种阵列基板，所述阵列基板包括形成在薄膜晶体阵列的源漏极图案所在层上且覆盖整个层的透光层，透光层能够在 外部背光源发出的第一颜色的光线的激发下发出第二颜色的光线，所述第二颜色的光线用于形成白光。
从上面所述可以看出，本发明所提供的阵列基板具有透光层，能够用于将外部背光源的光线变成白光，对发光效果没有造成影响，且同时透光层设置在阵列基板上的源漏极图案层上，远离作为背光源的LED灯的芯片，避免影响芯片散热，提高芯片使用寿命。同时，透光层还可以起到钝化层(PVX)的作用。
现有技术中的阵列基板一般需要通过光刻工艺来制作，依次制备栅极(Gate)、有源层、源/漏极(S/D，Source/Drain)、SiNX(氮化硅)钝化层、像素电极(Pixel ITO)等结构。在本发明的一实施例中，如图2所示，可先将荧光粉掺杂或填充到用于形成透光层301的材料(例如，透明树脂)中，再在阵列基板上(具体地，例如，在阵列基板的源/漏极图案层上或者在形成于源漏极图案层上的钝化层上)制备透光层301，透光层301位于形成有栅绝缘层302、薄膜晶体管阵列306(包括设置在其顶层的源漏极图案3061)和数据线303的玻璃基板305上，像素电极层304设置于透光层301上。如图3所示，透光层301代替了现有技术中阵列基板上的钝化层，由此不会增加阵列基板的制备工序和工艺成本。然而，本领域普通技术人员可以理解，在另一实施例中也可以设置钝化层，并将透光层301设置于钝化层上(图中未示出)。
在一实施例中，阵列基板包括形成在透光层301上的像素电极层(例如像素电极层304)，像素电极层包括红色亚像素区域、绿色亚像素区域和蓝色亚像素区域，第一颜色的光线为蓝光，其中，透光层的与红色亚像素区域和绿色亚像素区域相对应的部分中掺杂有荧光粉，能够在外部背光源的蓝光激发下发出白光。
根据本发明的总的发明构思，还公开了一种用于制造上述阵列基板的方法，包括步骤：在玻璃基板上形成薄膜晶体管阵列；在薄膜晶体管阵列的源漏极图案所在层上形成透光层，透光层覆盖整个层且能够在外部背光源发出的第一颜色的光线的激发下发出第二颜色的光线，第二颜色的光线用于形成白光；和在透光层上形成像素电极层，所述像素电极层包括红色亚像素区域、绿色亚像素区域和蓝色亚像素区域。在一具体实施例中，首先在玻璃基板305的表面上通过溅射工艺沉积具有设定厚度的金属层(例如Al(铝)或者Mo(钼))作为栅极图案层，并通过光阻胶涂覆、曝光、显影、酸刻蚀等工艺形成栅极图案。此后，利用等离子体增强化学气相沉积法(Plasma Enhanced Chemical Vapor Deposition，PECVD)在上述形成有栅极图案的玻璃基板 305的表面上沉积一层SiNx，构成栅绝缘层302。进一步，通过溅射工艺沉积金属层(例如Al或者Mo)，通过光阻胶涂覆、曝光、显影、酸刻蚀等工艺形成源漏极图案3061。进一步，利用PECVD方法在上述基板的表面沉积一层SiNx，构成绝缘层，并通过光阻胶涂覆、曝光、显影、干刻蚀等工艺形成对应蓝色亚像素的钝化层图案。利用涂覆设备在上述基板的表面涂覆一层掺有黄色荧光粉的感光性有机树脂，并通过曝光、显影，留下红色、绿色亚像素区域的图案，形成含有黄色荧光粉的有机树脂、钝化层的复合绝缘层。最后，沉积后续的像素电极各膜层。对于与阵列相应的彩膜基板，在彩膜基板表面利用涂覆设备在上述基板表面涂覆一层黑矩阵，通过曝光和显影工艺，形成对应R/G/B亚像素的黑矩阵图案；依次在上述彩膜基板表面对应红、绿、蓝色显色区域，通过涂覆设备涂覆感光有机树脂、掩模曝光和显影、形成红/绿/白(R/G/W)色阻图案。采用纯蓝色LED作为背光模组，发射出的蓝色光依次穿透阵列基板的绝缘层：通过红色、绿色亚像素区域的蓝光经荧光粉吸收发射出白光，白光经过传统控制显示灰阶的液晶层后，再经彩膜基板表面红色色阻、绿色色阻的过滤后，发射红光和绿光；蓝光亚像素区为降低彩膜基板段差的白色有机树脂层，依次经过控制显示灰阶的液晶层后，发射出蓝光；最终呈现红、绿、蓝的全彩色显示，且蓝光亚像素和液晶显示面板整体透过率大大提升。
在本发明其它实施例中，也可先制作红、绿色亚像素区域的图案，再制作蓝色亚像素对应的钝化层图案。
在本发明具体实施例中，所述第二颜色的光线可以为白光，也可以为用于组合成白光的单色光。
在本发明一些实施例中，所述阵列基板包括有红色亚像素区域、绿色亚像素区域和蓝色亚像素区域，所述第一颜色的光线为蓝光，其中，透光层的与红色亚像素区域和绿色亚像素区域对应的部分中掺杂有荧光粉，能够在背光源的蓝光激发下发出白光。
由于荧光粉是掺杂到透光层中的，能够通过掺杂过程使其在透光层中均匀分布，从而提高背光源第一光线转化后的发光均一性和光谱稳定性，提高显示效果。同时荧光粉离发光芯片较远，也避免了荧光粉因为发热而寿命降低，提升蓝光芯片和荧光粉的使用寿命。
在本发明一些实施例中，蓝色亚像素区域对应的所述透光层中掺杂有荧光粉，能 够在背光源的蓝光激发下发出白光。
在本发明另一实施例中，蓝色亚像素区域对应的所述透光层中未掺杂荧光粉，能够透射背光源发出的蓝光。如图3所示，在衬底基板401上，依次设置有栅绝缘层402、透光层403、像素电极404，透光层403包括红色亚像素对应的区域4031、绿色亚像素对应的区域4032、蓝色亚像素对应的区域4033，其中，红色亚像素对应的区域4031和绿色亚像素对应的区域4032掺杂有荧光粉，蓝色亚像素对应的区域4033不掺杂荧光粉，能够透射背光源发出的蓝光。数据线405设置于透光层403和栅绝缘层402之间。与图2类似地，薄膜晶体管阵列(包括设置在其顶部的源漏极图案层)可以设置为邻近于数据线405，并且被透光层403覆盖，在图3中为简化未示出薄膜晶体管阵列。
现有技术的背光源中采用蓝光芯片，在蓝光芯片的表面涂覆荧光粉，其中还存在如下问题：蓝光芯片发出的蓝光相当大一部分用于激发荧光粉，因此蓝光损失率较大；背光源白光中主要由加电激发的蓝光和受蓝光激发的荧光粉发光光谱组成，但是液晶显示面板中相同膜厚下的R∶G∶B色阻的透过率大约为3∶9∶1，蓝光色阻吸光率较红光色阻和绿光色阻高，蓝光的亮度经过各步骤后大大降低，背光白光穿透蓝光色阻后损失较大，加上人眼本身对蓝色也不敏感，导致蓝光透过率较低，成为制约液晶面板整体透过率提升的关键因素，进而导致面板整体透过率偏低，背光源功耗提升。因此如何提高蓝色亚像素的透过率和亮度成为提高液晶面板的透过率的关键。
本发明实施例的阵列基板上的透光层中的蓝色亚像素区域采用透明材料制作，能够直接透射蓝光，降低蓝光的损失率，提高蓝光的透过率；采用本发明实施例的阵列基板的显示面板的透光率也能够得到提高。
在本发明一些实施例中，所述透光层采用透明树脂形成。
在本发明一种具体实施例中，制作所述阵列基板时，先将荧光粉与透明有机树脂单体，如PMMA(Polymethyl Methacrylate，聚甲基丙烯酸甲酯)或者PC(Polycarbonate，聚碳酸酯)，以一定的比例搅拌均匀；在玻璃基板表面制备完栅极层(金属层)、栅绝缘层(Gate Insulator，GI)、有源层、源漏极图案层后，待用；将混合有荧光粉的透明有机树脂涂覆在基板上；将涂覆有所述树脂的阵列基板烘干、曝光、显影、后烘干；通过光刻工艺制备像素电极。
同时，本发明还提供一种液晶显示面板，包括本发明任意一项实施例所提供的阵 列基板。
在本发明具体实施例中，阵列基板与彩色滤光片基板经液晶填充后，真空贴盒成面板，并将纯蓝光LED作为背光源搭配使用。将荧光粉，例如Y粉、YR粉或者R/G粉填充到透明有机树脂中，通过光刻工艺制备到阵列基板的玻璃基板上，代替传统的SiNx或者SiO2(二氧化硅)材料，起到钝化层的作用。透光层代替钝化层，使得液晶显示面板的结构能够简化。通过本发明提供的液晶显示面板，可以通过改善荧光粉掺入到透光层中的掺杂均匀度，克服现有技术的液晶显示面板背光源中荧光粉涂覆的均一性问题。
在本发明一些实施例中，所述液晶显示面板还包括与所述阵列基板相对设置的彩膜基板，所述彩膜基板上设置有对应红色亚像素区域的红色滤光单元、对应绿色亚像素区域的绿色滤光单元和对应蓝色亚像素区域的蓝色滤光单元。
在本发明一些实施例中，在所述阵列基板的蓝色亚像素区域对应的所述透光层中未掺杂荧光粉并能够透射背光源发出的蓝光时，所述蓝色滤光单元完全透射所述背光源发出的蓝光。如图4所示，阵列基板501上设置有透光层502，透光层502上红色亚像素区域对应的透光层部分5021、绿色亚像素区域对应的透光层部分5022中掺杂有荧光粉，蓝色亚像素区域对应的透光层部分5023中未掺杂荧光粉。背光源503发出的蓝光经过液晶层504、彩膜基板505出射，红色滤光单元5051、绿色滤光单元5052过滤从透光层502透射产生的白光；蓝色滤光单元5053完全透射所述背光源503发出的蓝光。
在一实施例中，本发明的液晶显示面板还包括蓝光背光源。
进一步，本发明还提供一种液晶显示器，包括本发明任意一项实施例所提供的液晶显示面板。
在本发明一些实施例中，所述蓝光背光源采用蓝光发光二极管。
以纯蓝光LED作为背光源照射液晶显示面板，阵列基板的绝缘层制备中，蓝色亚像素区域沉积钝化层或者透明有机树脂；红色和绿色亚像素区域则采用填充Y荧光粉的有机树脂，用于将蓝光转换成白光光谱，避免了现有技术中先将蓝光在背光源中转换为白光、再通过彩膜基板将白光转换为蓝光的过程中造成的损失。此方法既可以大大提高蓝色亚像素和面板的透过率，同时不降低面板的色域，克服面板中蓝光亚像素发光不足的问题。为了降低彩膜基板表面的亚像素段差，减少摩擦划伤等不良， 在蓝色亚像素区域涂覆白色透明树脂，背光发射的蓝光经液晶层调控灰阶后，直接穿透彩膜基板，亮度和透过率大大提高；在彩膜基板上制备与红色亚像素区域和绿色亚像素区域对应的各个色阻层，下方的白光经液晶层调控灰阶后，被对应区域的红色色阻、绿色色阻过滤后，发出正常的红光、绿光。
下述表1、表2为本发明实施例的液晶面板色域模拟结果，其中表1为现有技术的液晶面板色域模拟结果，表2为本发明实施例的液晶面板色域模拟结果。经过对比模拟：在现有技术的液晶面板色域模拟中，背光采用常规蓝光芯片结合荧光粉，阵列基板的绝缘层为常规的钝化层，彩膜基板上对应R/G/B亚像素周期性排布，模拟出NTSC(National Television Standards Committee(美国)国家电视标准委员会)标准下的色域值为72.3％；Wx＝0.313，Wy＝0.325，CCT＝6523；亮度归一化为9.23；其中Wx为白光沿X轴的色坐标，Wy为白光沿Y轴色坐标，Y为亮度模拟相对值，CCT为关联色温(Correlated Color Temperature)。在本发明实施例的液晶面板色域模拟中，背光采用常规蓝光LED，阵列基板的绝缘层为钝化层结合掺杂有荧光粉的有机树脂的复合层，彩膜基板上对应R/G/B亚像素涂覆红色、绿色、白色色阻，模拟出NTSC标准下的色域72.3％；Wx＝0.316，Wy＝0.311，CCT＝6458；亮度归一化为18.6。本发明实施例的亮度归一化值达到18.6，亮度提升了接近一倍，实现了高透过率、高亮度，同时又不影响面板的色域。
表1
Figure PCTCN2016080873-appb-000001
表2
Figure PCTCN2016080873-appb-000002
Figure PCTCN2016080873-appb-000003
从上面所述可以看出，本发明所提供的阵列基板，在不增加现有阵列基板的工艺制程和掩模成本下，可以克服常规背光源中荧光粉涂覆不均的问题，含荧光粉的有机树脂涂覆在玻璃基板的表面，分布均匀，发光均一性和光谱稳定性大大提高，提高了荧光粉受蓝光激发后的发光均一性和光谱稳定性；有利于芯片散热，蓝光芯片和荧光粉的稳定性提高，提高芯片寿命。在本发明实施例所提供的阵列基板中，可通过光刻工艺、利用含荧光粉的有机树脂形成透光层来代替钝化层，在液态有机树脂中掺杂荧光粉，能够大大提高荧光粉的分布均一性和发光效果；荧光粉远离发热的芯片，自身寿命得到提高且在显示面板中能够显著提升背光源发光均一性和使用寿命。
应当理解，本说明书所描述的多个实施例仅用于说明和解释本发明，并不用于限定本发明。并且在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (14)

  1. 一种阵列基板，包括形成在源漏极图案所在层上且覆盖整个层的透光层，所述透光层能够在外部背光源发出的第一颜色的光线的激发下发出第二颜色的光线，所述第二颜色的光线用于形成白光。
  2. 根据权利要求1所述的阵列基板，其中所述阵列基板还包括形成在所述透光层上的像素电极层，所述像素电极层包括红色亚像素区域、绿色亚像素区域和蓝色亚像素区域，所述第一颜色的光线为蓝光，其中，所述透光层的与红色亚像素区域和绿色亚像素区域相对应的部分中掺杂有荧光粉，能够在外部背光源的蓝光激发下发出白光。
  3. 根据权利要求2所述的阵列基板，其中所述透光层的与蓝色亚像素区域相对应的部分中掺杂有荧光粉，能够在外部背光源的蓝光激发下发出白光。
  4. 根据权利要求2所述的阵列基板，其中所述透光层的与蓝色亚像素区域相对应的部分中未掺杂荧光粉，能够透射外部背光源发出的蓝光。
  5. 根据权利要求1-4中任一项所述的阵列基板，其中所述透光层采用透明树脂形成。
  6. 一种液晶显示面板，包括权利要求1-5中任意一项所述的阵列基板。
  7. 根据权利要求6所述的液晶显示面板，其中还包括与所述阵列基板相对设置的彩膜基板，所述彩膜基板上设置有对应红色亚像素区域的红色滤光单元、对应绿色亚像素区域的绿色滤光单元和对应蓝色亚像素区域的蓝色滤光单元。
  8. 根据权利要求6或7所述的液晶显示面板，其中还包括蓝光背光源。
  9. 根据权利要求8所述的液晶显示面板，其中所述蓝色背光源是蓝光发光二极管。
  10. 根据权利要求8所述的液晶显示面板，其中所述蓝色背光源的表面涂覆有用于热传导的树脂层。
  11. 一种用于制造阵列基板的方法，包括步骤：
    在玻璃基板上形成薄膜晶体管阵列；
    在所述薄膜晶体管阵列的源漏极图案所在层上形成透光层，所述透光层覆盖整个 层且能够在外部背光源发出的第一颜色的光线的激发下发出第二颜色的光线，所述第二颜色的光线用于形成白光；和
    在所述透光层上形成像素电极层，所述像素电极层包括红色亚像素区域、绿色亚像素区域和蓝色亚像素区域。
  12. 根据权利要求11所述的方法，其中在所述薄膜晶体管阵列的源漏极图案层上形成透光层的步骤包括：
    在所述源漏极图案层上涂覆掺杂有荧光粉的透明树脂材料；
    通过构图工艺去除被涂覆的透明树脂材料的与蓝色亚像素区域相对应的部分，构成透光层。
  13. 根据权利要求11所述的方法，其中在所述薄膜晶体管阵列的源漏极图案层上形成透光层的步骤包括：
    在所述源漏极图案层上涂覆掺杂有荧光粉的透明树脂材料，构成透光层。
  14. 根据权利要求12或13所述的方法，其中还包括步骤：在所述源漏极图案层与所述透光层之间形成钝化层。
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Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105467670A (zh) * 2016-02-19 2016-04-06 京东方科技集团股份有限公司 一种阵列基板、显示面板及液晶显示器
CN106483708B (zh) 2017-01-03 2019-05-28 京东方科技集团股份有限公司 彩膜基板、阵列基板、显示装置及显示装置的控制方法
CN106842685A (zh) 2017-03-16 2017-06-13 惠科股份有限公司 一种显示面板及制造方法和显示装置
US11309370B1 (en) 2018-01-12 2022-04-19 Apple Inc. Electronic device displays with curved surfaces
US11003015B1 (en) 2018-03-05 2021-05-11 Apple Inc. Electronic device with a light guiding layer
US11737307B1 (en) 2018-06-05 2023-08-22 Apple Inc. Electronic devices having curved displays with supporting frames
US11054861B2 (en) 2018-06-11 2021-07-06 Apple Inc. Electronic devices having displays with expanded edges
US11353652B1 (en) 2018-07-10 2022-06-07 Apple Inc. Electronic devices having displays with curved surfaces and image transport layers
US11963425B1 (en) 2018-07-10 2024-04-16 Apple Inc. Electronic devices having displays with curved surfaces
US11388329B1 (en) 2018-07-17 2022-07-12 Apple Inc. Electronic devices having displays with image transport layers
US10937987B1 (en) 2018-07-20 2021-03-02 Apple Inc. Electronic devices having displays with tilted anodes
US11619779B1 (en) 2018-08-10 2023-04-04 Apple Inc. Methods for forming image transport layers
US11810534B1 (en) 2018-09-14 2023-11-07 Apple Inc. Distortion control in displays with optical coupling layers
US11516908B1 (en) 2018-11-13 2022-11-29 Apple Inc. Electronic devices having image transport layers with embedded circuitry
US11817025B1 (en) * 2018-11-13 2023-11-14 Apple Inc. Electronic devices having housings with image transport layers
US12101426B1 (en) 2018-11-13 2024-09-24 Apple Inc. Electronic devices having vertical image transport layers
US11436964B1 (en) 2018-11-13 2022-09-06 Apple Inc. Electronic devices having image transport layers and electrical components
US11247421B1 (en) 2019-08-20 2022-02-15 Apple Inc. Single-step extrusion of fiber optic plates for electronic devices
US11513554B1 (en) 2019-08-23 2022-11-29 Apple Inc. Electronic devices having displays with borders of image transport material
US11774644B1 (en) 2019-08-29 2023-10-03 Apple Inc. Electronic devices with image transport layers having light absorbing material
US11525955B1 (en) 2020-06-05 2022-12-13 Apple Inc. Electronic devices with drawn sheet-packed coherent fiber bundles
CN112968143B (zh) * 2021-02-26 2023-04-18 京东方科技集团股份有限公司 显示面板及其制备方法、显示装置
CN114994975B (zh) * 2022-08-03 2023-02-21 惠科股份有限公司 阵列基板及其制作方法、显示面板
CN116111030B (zh) * 2023-03-20 2026-01-23 厦门乾照光电股份有限公司 一种Micro-LED显示装置及其制作方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0943586A (ja) * 1995-08-01 1997-02-14 Casio Comput Co Ltd 液晶表示素子
CN102437170A (zh) * 2011-11-18 2012-05-02 贵州大学 一种蓝光激发tft-led阵列显示基板及其制造方法
KR20120048218A (ko) * 2010-11-05 2012-05-15 엘지이노텍 주식회사 컬러필터 및 이를 이용한 디스플레이 장치
CN102654684A (zh) * 2011-11-22 2012-09-05 北京京东方光电科技有限公司 一种液晶显示面板及其制造方法
CN103293745A (zh) * 2013-05-17 2013-09-11 北京京东方光电科技有限公司 液晶显示屏、显示装置及单色量子点层的制备方法
CN104793418A (zh) * 2015-04-30 2015-07-22 京东方科技集团股份有限公司 一种阵列基板及其制作方法和显示装置
CN105044972A (zh) * 2015-08-27 2015-11-11 深圳市华星光电技术有限公司 液晶显示面板和液晶显示装置
CN105467670A (zh) * 2016-02-19 2016-04-06 京东方科技集团股份有限公司 一种阵列基板、显示面板及液晶显示器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3378465B2 (ja) * 1997-05-16 2003-02-17 株式会社東芝 発光装置
KR101383551B1 (ko) * 2012-07-16 2014-04-10 엘지디스플레이 주식회사 퀀텀 로드 발광 표시장치
CN103197477B (zh) * 2013-03-29 2015-11-18 京东方科技集团股份有限公司 一种双模液晶显示装置、彩膜基板及阵列基板
CN103309087A (zh) * 2013-06-08 2013-09-18 北京京东方光电科技有限公司 一种阵列基板、液晶显示面板和显示装置
KR102119680B1 (ko) * 2014-02-11 2020-06-09 삼성디스플레이 주식회사 표시 장치 및 이의 구동 방법
CN103869530A (zh) * 2014-03-31 2014-06-18 深圳市华星光电技术有限公司 液晶显示器
JP2016133730A (ja) * 2015-01-21 2016-07-25 株式会社ジャパンディスプレイ 表示装置
CN104597654A (zh) * 2015-02-13 2015-05-06 厦门天马微电子有限公司 液晶显示面板及液晶显示装置
CN105182601B (zh) * 2015-10-27 2019-01-22 京东方科技集团股份有限公司 一种阵列基板、显示面板、显示装置及制作方法
CN105242448B (zh) * 2015-11-11 2018-05-01 深圳市华星光电技术有限公司 彩色滤光基板的制作方法及彩色滤光基板

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0943586A (ja) * 1995-08-01 1997-02-14 Casio Comput Co Ltd 液晶表示素子
KR20120048218A (ko) * 2010-11-05 2012-05-15 엘지이노텍 주식회사 컬러필터 및 이를 이용한 디스플레이 장치
CN102437170A (zh) * 2011-11-18 2012-05-02 贵州大学 一种蓝光激发tft-led阵列显示基板及其制造方法
CN102654684A (zh) * 2011-11-22 2012-09-05 北京京东方光电科技有限公司 一种液晶显示面板及其制造方法
CN103293745A (zh) * 2013-05-17 2013-09-11 北京京东方光电科技有限公司 液晶显示屏、显示装置及单色量子点层的制备方法
CN104793418A (zh) * 2015-04-30 2015-07-22 京东方科技集团股份有限公司 一种阵列基板及其制作方法和显示装置
CN105044972A (zh) * 2015-08-27 2015-11-11 深圳市华星光电技术有限公司 液晶显示面板和液晶显示装置
CN105467670A (zh) * 2016-02-19 2016-04-06 京东方科技集团股份有限公司 一种阵列基板、显示面板及液晶显示器

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