WO2017193442A1 - Lcd显示器 - Google Patents

Lcd显示器 Download PDF

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Publication number
WO2017193442A1
WO2017193442A1 PCT/CN2016/085778 CN2016085778W WO2017193442A1 WO 2017193442 A1 WO2017193442 A1 WO 2017193442A1 CN 2016085778 W CN2016085778 W CN 2016085778W WO 2017193442 A1 WO2017193442 A1 WO 2017193442A1
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WO
WIPO (PCT)
Prior art keywords
substrate
layer
liquid crystal
lcd display
lower substrate
Prior art date
Application number
PCT/CN2016/085778
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English (en)
French (fr)
Inventor
陈黎暄
Original Assignee
深圳市华星光电技术有限公司
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Filing date
Publication date
Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US15/109,125 priority Critical patent/US10222652B2/en
Publication of WO2017193442A1 publication Critical patent/WO2017193442A1/zh

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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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
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    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
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    • G02B5/30—Polarising elements
    • 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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    • 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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    • 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
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • 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
    • G02F1/136—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
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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
    • G02F1/133302—Rigid substrates, e.g. inorganic substrates
    • 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
    • G02F1/133357—Planarisation layers
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • 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
    • G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
    • G02F1/133567—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the back 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
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    • G02F1/133605—Direct backlight including specially adapted reflectors
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    • 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
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    • G02F1/136222—Colour filters incorporated in the active matrix substrate

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to an LCD display.
  • Liquid crystal display has many advantages such as thin body, power saving, and no radiation, and has been widely used.
  • Most of the liquid crystal display devices on the market are backlight type liquid crystal display devices, which include a liquid crystal display panel and a backlight module.
  • the liquid crystal display panel comprises a color filter (CF) substrate, a thin film transistor (TFT) array substrate, a liquid crystal (LC) sandwiched between the color filter substrate and the thin film transistor array substrate, and a sealant.
  • CF color filter
  • TFT thin film transistor
  • LC liquid crystal sandwiched between the color filter substrate and the thin film transistor array substrate
  • sealant a sealant.
  • the composition of the box (Sealant).
  • the working principle of the liquid crystal display panel is to place liquid crystal molecules in two parallel glass substrates, control the orientation of the liquid crystal molecules by energizing or not the glass substrate, change the polarization state of the light of the backlight module, and set on both sides of the liquid crystal display panel.
  • the polarizing plate realizes the penetration and blocking of the optical path to achieve the purpose of controlling the amount of light transmission; the light passing through the liquid crystal layer is filtered and absorbed by the color photoresist layer, so that the light of each pixel is emitted by the three primary colors (RGB).
  • RGB three primary colors
  • the composition different pixels corresponding to the light of different colors, using the principle of spatial color mixing, thereby achieving full color display. It can be seen that polarized light and RGB three primary colors are the two most important elements for their display principle to be realized.
  • polarizers mainly include iodine and dye systems.
  • the production principle is to soak a polymer film such as polyvinyl alcohol (PVA) in a solution containing polyvalent iodide ions or polarizing dyes, and then PVA polymer.
  • PVA polyvinyl alcohol
  • PVA molecules Stretching in a single axis direction; PVA molecules are aligned in one direction after being stretched by external force, causing the iodine molecules or dye molecules adsorbed on the PVA molecules to align in the same direction as the PVA molecules; the elongated iodine molecules or dyes after stretching
  • the molecule absorbs light that vibrates in parallel with the long-axis direction of the iodine molecule, and transmits light that vibrates perpendicular to the long-axis direction of the iodine molecule, thereby obtaining a polarizer capable of forming polarized light.
  • a metal grating structure polarizer has also been applied to liquid crystal displays.
  • Ultra-thin displays have become a hot spot in the market today. How to make displays such as mobile phones and TVs thinner is one of the core tasks of engineers.
  • the present invention provides an LCD display including a relatively disposed subbase a plate and an upper substrate, a liquid crystal layer disposed between the lower substrate and the upper substrate, a sealant disposed at a peripheral position between the lower substrate and the upper substrate, and an edge-lit backlight on a side of the lower substrate ;
  • the lower substrate includes a first substrate, a first polarizing layer on a side of the first substrate adjacent to the liquid crystal layer, and a reflective surface on a side of the first substrate away from the liquid crystal layer membrane;
  • the first substrate substrate has a side surface, and the side-entry backlight is disposed opposite to the side surface of the first substrate;
  • the first substrate has a bottom surface, the bottom surface is a surface of the first substrate away from the liquid crystal layer, and the bottom surface is provided with a plurality of microstructures, the reflective film covering the bottom surface and the plurality of Microstructure
  • the upper substrate is a TFT array substrate, and includes a second substrate, a functional layer on a side of the second substrate adjacent to the liquid crystal layer, and a second substrate on the second substrate away from the liquid crystal layer a second polarizing layer on the side.
  • the lower substrate further includes a first functional layer on a side of the first substrate adjacent to the liquid crystal layer;
  • the first functional layer includes an ITO electrode layer.
  • the first polarizing layer is located between the first substrate and the first functional layer;
  • the lower substrate further includes a planarization layer between the first polarizing layer and the first functional layer.
  • the lower substrate further includes a refractive layer between the first polarizing layer and the first substrate, the refractive index of the refractive layer being greater than a refractive index of the first substrate.
  • the first polarizing layer is located between the first functional layer and the liquid crystal layer.
  • the lower substrate further includes a first functional layer on a side of the first substrate adjacent to the liquid crystal layer; the first functional layer includes a color filter.
  • the second functional layer includes a TFT array layer and further includes a color filter.
  • the sealant is a UV curable adhesive material.
  • the first polarizing layer and the second polarizing layer are an iodine-based polarizing layer or a dye-based polarizing layer.
  • the first base substrate and the second base substrate are glass substrates.
  • the present invention also provides an LCD display comprising a lower substrate and an upper substrate disposed opposite to each other, a liquid crystal layer disposed between the lower substrate and the upper substrate, and a sealant disposed at a peripheral position between the lower substrate and the upper substrate, And a side-entry backlight on a side of the lower substrate;
  • the lower substrate includes a first substrate, a first polarizing layer on a side of the first substrate adjacent to the liquid crystal layer, and a reflective surface on a side of the first substrate away from the liquid crystal layer Membrane
  • the first substrate substrate has a side surface, and the side-entry backlight is disposed opposite to the side surface of the first substrate;
  • the first substrate has a bottom surface, the bottom surface is a surface of the first substrate away from the liquid crystal layer, and the bottom surface is provided with a plurality of microstructures, the reflective film covering the bottom surface and the plurality of Microstructure
  • the upper substrate is a TFT array substrate, including a second substrate, a second functional layer on a side of the second substrate adjacent to the liquid crystal layer, and a second substrate on the second substrate away from the liquid crystal a second polarizing layer on one side of the layer;
  • the frame sealant is a UV curable adhesive material
  • the first polarizing layer and the second polarizing layer are an iodine-based polarizing layer or a dye-based polarizing layer;
  • the first base substrate and the second base substrate are glass substrates.
  • the invention has the advantages that the first polarizing layer on the lower substrate is designed as a built-in structure and the first substrate is the first one, which has the advantages of simple process and structure of the lower substrate relative to the TFT array substrate.
  • the base substrate serves as a light guide plate for the side-entry backlight, so that the light guide plate is not required to be additionally provided, so that the LCD display has an ultra-thin module structure optimized for display.
  • FIG. 1 is a schematic structural view of a first embodiment of an LCD display of the present invention
  • FIG. 2 is a schematic structural view of a second embodiment of an LCD display of the present invention.
  • the LCD is a vertical alignment (VA) type LCD, and includes a lower substrate 10 and an upper substrate 20 disposed opposite to each other. a liquid crystal layer 30 between the lower substrate 10 and the upper substrate 20, a sealant 50 disposed at a peripheral position between the lower substrate 10 and the upper substrate 20, and an edge-lit backlight on a side of the lower substrate 10 40;
  • VA vertical alignment
  • the lower substrate 10 includes a first substrate 11 , a first polarizing layer 13 on a side of the first substrate 11 adjacent to the liquid crystal layer 30 , and a distance away from the first substrate 11 . a reflective film 14 on the side of the liquid crystal layer 30;
  • the first substrate substrate 11 has a side surface, and the side-entry backlight 40 is disposed opposite to the side surface of the first substrate substrate 11;
  • the first substrate substrate 11 has a bottom surface, and the bottom surface is a surface of the first substrate substrate 11 away from the liquid crystal layer 30.
  • the bottom surface is provided with a plurality of microstructures 111, and the reflective film 14 covers the surface. a bottom surface and the plurality of microstructures 111;
  • the upper substrate 20 is a TFT array substrate, including a second substrate substrate 21, a second functional layer 22 on a side of the second substrate substrate 21 adjacent to the liquid crystal layer 30, and a second substrate.
  • the substrate 21 is away from the second polarizing layer 23 on the side of the liquid crystal layer 30.
  • the lower substrate 10 further includes a first functional layer 12 on a side of the first substrate substrate 11 adjacent to the liquid crystal layer 30.
  • the LCD is a VA type LCD, that is, the upper and lower substrates 10 and 20 are respectively provided with opposite electrode layers, and the first functional layer 12 of the lower substrate 10 includes an ITO electrode layer, and the upper substrate 20 The second functional layer 22 includes another ITO electrode layer.
  • the process of the lower substrate 10 is much simpler than that of the upper substrate 20 of the TFT array substrate, and the ITO electrode layer thereon is formed by sputtering at a normal temperature, thereby preventing the first polarizing layer 13 from being damaged in the high temperature process. .
  • the sealant 50 is a UV curable adhesive material, and a UV curing method is used instead of a thermal curing method during the forming process, thereby further preventing the first polarizing layer 13 from being damaged in a high temperature process.
  • the first polarizing layer 13 having a built-in structure may be a common polarizing layer that is not resistant to a high temperature process.
  • the first polarizing layer 13 and the second polarizing layer 23 are an iodine-based polarizing layer or a dye-based polarizing layer.
  • the first substrate 11 of the lower substrate 10 serves as a light guide plate, and a side surface of the first substrate substrate 11 serves as a light incident surface facing the side-entry backlight 40.
  • the light needs to be totally reflected in the first substrate 11 to achieve the effect of light mixing. Therefore, the lower substrate 10 further includes the first polarizing layer 13 and the first substrate 11
  • the refractive index of the refractive layer 16 is greater than the refractive index of the first substrate 11 to solve the problem that the first polarizing layer 13 cannot satisfy the requirement of the first substrate 11 to achieve the light mixing.
  • the refractive layer 16 is an inorganic oxide material having a refractive index greater than 1.5.
  • the first substrate 10 further includes a color filter disposed between the ITO electrode layer and the first polarizing layer 13 .
  • the lower substrate 10 further includes the The planarization layer 15 between the first polarizing layer 13 and the first functional layer 12 avoids film formation defects in the ITO process.
  • the first base substrate 11 and the second base substrate 21 are glass substrates.
  • FIG. 2 is a schematic structural view of a second embodiment of an LCD display according to the present invention.
  • the panel of the LCD display is integrated with a color filter on an array substrate (Color).
  • a filter On Arry (COA) structure that is, a color filter that functions as a color filter is disposed on the TFT array substrate, that is, the second functional layer 22 of the upper substrate 20 includes a TFT array layer, and further includes a color filter.
  • the lower substrate 10 does not include a color filter, and the first functional layer 12 of the lower substrate 10 includes only one ITO electrode layer, thereby further reducing the process difficulty of the lower substrate 10 and simplifying the structure of the lower substrate 10. the complexity.
  • the first polarizing layer 13 is located between the first functional layer 12 and the liquid crystal layer 30, and is disposed on the first functional layer 12 due to the first functional layer 12
  • the ITO electrode layer is directly formed on the first base substrate 11, and there is no risk of poor ITO process due to the surface roughness of the first polarizing layer 13. Therefore, no planarization is provided on the first polarizing layer 13 in the lower substrate 10.
  • a buffer layer (not shown) is further provided on the side of the first polarizing layer 13 close to the liquid crystal layer 30.
  • the first polarizing layer 13 thereon is designed as a built-in structure by using the advantages of the lower substrate 10 in the process and structure, and the first substrate 11 of the lower substrate 10 is designed.
  • the light guide plate of the side-entry backlight 40 there is no need to additionally provide a light guide plate, so that the LCD display has an ultra-thin module structure optimized for display.
  • the first and second embodiments described above describe the application of the present invention to a VA type LCD.
  • the present invention can also be applied to other types of embodiments, such as In-Plane Switching (IPS) type.
  • the LCD that is, the two electrode layers for deflecting the liquid crystal molecules in the liquid crystal layer 30 are all disposed on the same substrate.
  • the lower substrate 10 may further include no ITO electrode layer, and the lower substrate 10 includes only the first The base substrate 11 and the first polarizing layer 13 thereon can further reduce the process difficulty of the lower substrate 10 and simplify the structural complexity of the lower substrate 10.
  • the LCD display of the present invention utilizes the advantages of the lower substrate and the TFT array substrate in the process and structure, and the first polarizing layer on the lower substrate is designed as a built-in structure, and the first lining of the lower substrate is designed.
  • the base substrate is used as a light guide plate for the side-entry backlight, so that the light guide plate is not required to be additionally provided, so that the LCD display has an ultra-thin module structure optimized for display.

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Abstract

一种LCD显示器，包括相对设置的下基板(10)与上基板(20)、夹设于下基板(10)与上基板(20)之间的液晶层(30)、及位于下基板(10)一侧的侧入式背光源(40)；下基板(10)包括第一衬底基板(11)及位于第一衬底基板(11)靠近液晶层(30)一侧的第一偏光层(13)，上基板(20)为TFT阵列基板；利用下基板（10）相对TFT阵列基板在制程及结构上简单的优势，将下基板（10）上的第一偏光层（13）设计为内置式结构，并将下基板（10）的第一衬底基板（11）作为侧入式背光源（40）的导光板，从而不需额外设置导光板，使得LCD显示器具有最佳化显示的超薄模组结构。

Description

LCD显示器 技术领域
本发明涉及液晶显示技术领域，尤其涉及一种LCD显示器。
背景技术
液晶显示装置(Liquid Crystal Display，LCD)具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括液晶显示面板及背光模组(backlight module)。通常液晶显示面板由彩膜(Color Filter，CF)基板、薄膜晶体管(Thin Film Transistor，TFT)阵列基板、夹于彩膜基板与薄膜晶体管阵列基板之间的液晶(Liquid Crystal，LC)及密封胶框(Sealant)组成。
液晶显示面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，通过玻璃基板通电与否来控制液晶分子取向，改变背光模组的光线的偏振状态，并藉由液晶显示面板两侧设置的偏光板实现光路的穿透与阻挡，达到控制透光量的目的；通过彩色光阻层将透过液晶层的光线进行过滤吸收，使得每个像素的光在射出后都是由三原色(RGB)构成，不同的像素对应发出不同颜色的光，利用空间混色原理，从而实现全彩显示。可见，偏振光和RGB三原色是其显示原理得以实现最重要的两个要素。
现在常用的偏光片主要有碘系和染料系，其制作原理为将聚乙烯醇(polyvinyl alcohol，PVA)等高分子膜浸泡于含多价碘离子或偏光染料的溶液中，再将PVA高分子以单一轴方向拉伸；PVA分子受外力拉伸后会在一个方向上排列，促使吸附在PVA分子上的碘分子或染料分子和PVA分子同方向排列；拉伸后的细长碘分子或染料分子会吸收平行于碘分子长轴方向振动的光，透过垂直于碘分子长轴方向振动的光，即得到能够形成偏振光的偏光片。另外，金属光栅结构的偏光片也已在液晶显示得以应用。
超薄显示器在今天已经成为市场的热点，如何使得显示器例如手机，电视的厚度更薄，是工程师的核心工作之一。
发明内容
本发明的目的在于提供一种LCD显示器，具有最佳化显示的超薄LCD模组结构。
为实现上述目的，本发明提供一种LCD显示器，包括相对设置的下基 板与上基板、设于下基板与上基板之间的液晶层、设于所述下基板与上基板之间周边位置的封框胶、及位于所述下基板一侧的侧入式背光源；
所述下基板包括第一衬底基板、位于所述第一衬底基板靠近所述液晶层一侧的第一偏光层、及位于所述第一衬底基板远离所述液晶层一侧的反光膜；
所述第一衬底基板具有一侧面，所述侧入式背光源正对第一衬底基板的该侧面设置；
所述第一衬底基板具有一底面，该底面为所述第一衬底基板远离所述液晶层的表面，该底面上设有多个微型结构，所述反光膜覆盖该底面及该多个微型结构；
所述上基板为TFT阵列基板，包括第二衬底基板、位于所述第二衬底基板靠近所述液晶层一侧的功能层、及位于所述第二衬底基板远离所述液晶层一侧的第二偏光层。
所述下基板还包括位于所述第一衬底基板靠近所述液晶层一侧的第一功能层；
所述第一功能层包括ITO电极层。
所述第一偏光层位于第一衬底基板与所述第一功能层之间；
所述下基板还包括位于所述第一偏光层与所述第一功能层之间的平坦化层。
所述下基板还包括位于所述第一偏光层与所述第一衬底基板之间的折射层，所述折射层的折射率大于所述第一衬底基板的折射率。
所述第一偏光层位于所述第一功能层与所述液晶层之间。
所述下基板还包括位于所述第一衬底基板靠近所述液晶层一侧的第一功能层；所述第一功能层包括彩色滤光片。
所述第二功能层包括TFT阵列层，还包括彩色滤光片。
所述封框胶为UV固化胶材料。
所述第一偏光层与第二偏光层为碘系偏光层、或者染料系偏光层。
所述第一衬底基板与第二衬底基板为玻璃基板。
本发明还提供一种LCD显示器，包括相对设置的下基板与上基板、设于下基板与上基板之间的液晶层、设于所述下基板与上基板之间周边位置的封框胶、及位于所述下基板一侧的侧入式背光源；
所述下基板包括第一衬底基板、位于所述第一衬底基板靠近所述液晶层一侧的第一偏光层、及位于所述第一衬底基板远离所述液晶层一侧的反光膜；
所述第一衬底基板具有一侧面，所述侧入式背光源正对第一衬底基板的该侧面设置；
所述第一衬底基板具有一底面，该底面为所述第一衬底基板远离所述液晶层的表面，该底面上设有多个微型结构，所述反光膜覆盖该底面及该多个微型结构；
所述上基板为TFT阵列基板，包括第二衬底基板、位于所述第二衬底基板靠近所述液晶层一侧的第二功能层、及位于所述第二衬底基板远离所述液晶层一侧的第二偏光层；
其中，所述封框胶为UV固化胶材料；
其中，所述第一偏光层与第二偏光层为碘系偏光层、或者染料系偏光层；
其中，所述第一衬底基板与第二衬底基板为玻璃基板。
本发明的有益效果：本发明的LCD显示器，利用下基板相对TFT阵列基板在制程及结构上简单的优势，将下基板上的第一偏光层设计为内置式结构，并将下基板的第一衬底基板作为侧入式背光源的导光板，从而不需额外设置导光板，使得LCD显示器具有最佳化显示的超薄模组结构。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其他有益效果显而易见。
附图中，
图1为本发明LCD显示器的第一实施例的结构示意图；
图2为本发明LCD显示器的第二实施例的结构示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1，为本发明的LCD显示器的第一实施例的结构示意图，所述LCD，为垂直配向(Vertical Alignment，VA)型LCD，包括相对设置的下基板10与上基板20、设于下基板10与上基板20之间的液晶层30、设于所述下基板10与上基板20之间周边位置的封框胶50、及位于所述下基板10一侧的侧入式背光源40；
所述下基板10包括第一衬底基板11、位于所述第一衬底基板11靠近所述液晶层30一侧的第一偏光层13、及位于所述第一衬底基板11远离所 述液晶层30一侧的反光膜14；
所述第一衬底基板11具有一侧面，所述侧入式背光源40正对第一衬底基板11的该侧面设置；
所述第一衬底基板11具有一底面，该底面为所述第一衬底基板11远离所述液晶层30的表面，该底面上设有多个微型结构111，所述反光膜14覆盖该底面及该多个微型结构111；
所述上基板20为TFT阵列基板，包括第二衬底基板21、位于所述第二衬底基板21靠近所述液晶层30一侧的第二功能层22、及位于所述第二衬底基板21远离所述液晶层30一侧的第二偏光层23。
具体的，所述下基板10还包括位于所述第一衬底基板11靠近所述液晶层30一侧的第一功能层12。
具体的，所述LCD为VA型LCD，即上、下基板10、20上分别设有相对的电极层，所述下基板10的第一功能层12包括ITO电极层，所述上基板20的第二功能层22包括另一ITO电极层。
具体的，所述下基板10与TFT阵列基板的上基板20相比较，其制程大为简单，其上的ITO电极层在常温下溅射形成，避免了第一偏光层13在高温制程受到损害。
具体的，所述封框胶50为UV固化胶材料，在形成过程中采用UV固化的方式而非热固化的方式，从而进一步避免了第一偏光层13在高温制程受到损害。
因此，采用内置结构的第一偏光层13可以是不耐高温制程的普通偏光层，具体的，所述第一偏光层13与第二偏光层23为碘系偏光层、或者染料系偏光层。
具体的，在本发明中，所述下基板10的第一衬底基板11作为导光板，所述第一衬底基板11的一侧面作为入光面正对所述侧入式背光源40，光线需要在所述第一衬底基板11内发生全反射，从而实现混光的效果，因此，所述下基板10还包括位于所述第一偏光层13与所述第一衬底基板11之间的折射层16，所述折射层16的折射率大于所述第一衬底基板11的折射率，以解决第一偏光层13无法满足第一衬底基板11实现混光要求的问题。
优选的，所述折射层16为无机氧化物材料，其折射率大于1.5。
具体的，所述下基板10为彩膜基板，所述下基板10的第一功能层12还包括设于ITO电极层与第一偏光层13之间的彩色滤光片。
具体的，由于第一偏光层13表面形貌的粗糙度较高，导致下基板10上ITO电极层断裂的不良风险较高，因此，所述下基板10还包括位于所述 第一偏光层13与所述第一功能层12之间的平坦化层15，从而避免ITO制程中的成膜不良。
具体的，所述第一衬底基板11与第二衬底基板21为玻璃基板。
请参阅图2，为本发明LCD显示器第二实施例的结构示意图，与上述第一实施例相比，在本实施例中，所述LCD显示器的面板采用彩色滤光片整合于阵列基板(Color filter On Arry，COA)结构，即起到彩色滤光作用的彩色滤光片设置于TFT阵列基板上，即所述上基板20的第二功能层22包括TFT阵列层，还包括彩色滤光片；所述下基板10不包括彩色滤光片，所述下基板10的第一功能层12只包括一层ITO电极层，从而进一步降低了下基板10的制程难度，简化了下基板10结构的复杂度。
另外，在本实施例中所述第一偏光层13位于所述第一功能层12与所述液晶层30之间，设于所述第一功能层12之上，由于第一功能层12的ITO电极层直接形成于第一衬底基板11上，不存在因第一偏光层13表面粗糙而导致ITO制程不良的风险，因此，所述下基板10中第一偏光层13上不设置平坦化层，而为了防止第一偏光层13直接与液晶层30接触而被破坏，在第一偏光层13靠近所述液晶层30的一侧上还设有缓冲层(未图示)。
需要说明的是，在本发明中，利用下基板10在制程及结构上简单的优势，将其上的第一偏光层13设计为内置式结构，并将下基板10的第一衬底基板11作为侧入式背光源40的导光板，从而不需额外设置导光板，使得LCD显示器具有最佳化显示的超薄模组结构。上述第一、第二实施例介绍了本发明在VA型LCD上的应用，除此之外，本发明还可以应用于其他类型的实施例中，比如平面转换(In-Plane Switching，IPS)型LCD，即用于使液晶层30中液晶分子偏转的两电极层均设置于同一基板上，此时，所述下基板10上可进一步不包括ITO电极层，所述下基板10仅包括第一衬底基板11、及其上的第一偏光层13，从而可进一步降低下基板10的制程难度，简化下基板10的结构复杂度。
综上所述，本发明的LCD显示器，利用下基板相对TFT阵列基板在制程及结构上简单的优势，将下基板上的第一偏光层设计为内置式结构，并将下基板的第一衬底基板作为侧入式背光源的导光板，从而不需额外设置导光板，使得LCD显示器具有最佳化显示的超薄模组结构。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (17)

  1. 一种LCD显示器，包括相对设置的下基板与上基板、设于下基板与上基板之间的液晶层、设于所述下基板与上基板之间周边位置的封框胶、及位于所述下基板一侧的侧入式背光源；
    所述下基板包括第一衬底基板、位于所述第一衬底基板靠近所述液晶层一侧的第一偏光层、及位于所述第一衬底基板远离所述液晶层一侧的反光膜；
    所述第一衬底基板具有一侧面，所述侧入式背光源正对第一衬底基板的该侧面设置；
    所述第一衬底基板具有一底面，该底面为所述第一衬底基板远离所述液晶层的表面，该底面上设有多个微型结构，所述反光膜覆盖该底面及该多个微型结构；
    所述上基板为TFT阵列基板，包括第二衬底基板、位于所述第二衬底基板靠近所述液晶层一侧的第二功能层、及位于所述第二衬底基板远离所述液晶层一侧的第二偏光层。
  2. 如权利要求1所述的LCD显示器，其中，所述下基板还包括位于所述第一衬底基板靠近所述液晶层一侧的第一功能层；
    所述第一功能层包括ITO电极层。
  3. 如权利要求2所述的LCD显示器，其中，所述第一偏光层位于第一衬底基板与所述第一功能层之间；
    所述下基板还包括位于所述第一偏光层与所述第一功能层之间的平坦化层。
  4. 如权利要求1所述的LCD显示器，其中，所述下基板还包括位于所述第一偏光层与所述第一衬底基板之间的折射层，所述折射层的折射率大于所述第一衬底基板的折射率。
  5. 如权利要求2所述的LCD显示器，其中，所述第一偏光层位于所述第一功能层与所述液晶层之间。
  6. 如权利要求1所述的LCD显示器，其中，所述下基板还包括位于所述第一衬底基板靠近所述液晶层一侧的第一功能层；所述第一功能层包括彩色滤光片。
  7. 如权利要求1所述的LCD显示器，其中，所述第二功能层包括TFT阵列层，还包括彩色滤光片。
  8. 如权利要求1所述的LCD显示器，其中，所述封框胶为UV固化胶材料。
  9. 如权利要求1所述的LCD显示器，其中，所述第一偏光层与第二偏光层为碘系偏光层、或者染料系偏光层。
  10. 如权利要求1所述的LCD显示器，其中，所述第一衬底基板与第二衬底基板为玻璃基板。
  11. 一种LCD显示器，包括相对设置的下基板与上基板、设于下基板与上基板之间的液晶层、设于所述下基板与上基板之间周边位置的封框胶、及位于所述下基板一侧的侧入式背光源；
    所述下基板包括第一衬底基板、位于所述第一衬底基板靠近所述液晶层一侧的第一偏光层、及位于所述第一衬底基板远离所述液晶层一侧的反光膜；
    所述第一衬底基板具有一侧面，所述侧入式背光源正对第一衬底基板的该侧面设置；
    所述第一衬底基板具有一底面，该底面为所述第一衬底基板远离所述液晶层的表面，该底面上设有多个微型结构，所述反光膜覆盖该底面及该多个微型结构；
    所述上基板为TFT阵列基板，包括第二衬底基板、位于所述第二衬底基板靠近所述液晶层一侧的第二功能层、及位于所述第二衬底基板远离所述液晶层一侧的第二偏光层；
    其中，所述封框胶为UV固化胶材料；
    其中，所述第一偏光层与第二偏光层为碘系偏光层、或者染料系偏光层；
    其中，所述第一衬底基板与第二衬底基板为玻璃基板。
  12. 如权利要求11所述的LCD显示器，其中，所述下基板还包括位于所述第一衬底基板靠近所述液晶层一侧的第一功能层；
    所述第一功能层包括ITO电极层。
  13. 如权利要求12所述的LCD显示器，其中，所述第一偏光层位于第一衬底基板与所述第一功能层之间；
    所述下基板还包括位于所述第一偏光层与所述第一功能层之间的平坦化层。
  14. 如权利要求11所述的LCD显示器，其中，所述下基板还包括位于所述第一偏光层与所述第一衬底基板之间的折射层，所述折射层的折射率大于所述第一衬底基板的折射率。
  15. 如权利要求12所述的LCD显示器，其中，所述第一偏光层位于所述第一功能层与所述液晶层之间。
  16. 如权利要求11所述的LCD显示器，其中，所述下基板还包括位于所述第一衬底基板靠近所述液晶层一侧的第一功能层；所述第一功能层包括彩色滤光片。
  17. 如权利要求11所述的LCD显示器，其中，所述第二功能层包括TFT阵列层，还包括彩色滤光片。
PCT/CN2016/085778 2016-05-09 2016-06-15 Lcd显示器 WO2017193442A1 (zh)

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