WO2020024822A1 - 一种液晶面板及其制作方法、应用 - Google Patents

一种液晶面板及其制作方法、应用 Download PDF

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Publication number
WO2020024822A1
WO2020024822A1 PCT/CN2019/096985 CN2019096985W WO2020024822A1 WO 2020024822 A1 WO2020024822 A1 WO 2020024822A1 CN 2019096985 W CN2019096985 W CN 2019096985W WO 2020024822 A1 WO2020024822 A1 WO 2020024822A1
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WIPO (PCT)
Prior art keywords
liquid crystal
glass substrate
crystal panel
sealant
panel according
Prior art date
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PCT/CN2019/096985
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English (en)
French (fr)
Inventor
历志辉
Original Assignee
深圳Tcl新技术有限公司
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Application filed by 深圳Tcl新技术有限公司 filed Critical 深圳Tcl新技术有限公司
Priority to EP19845316.9A priority Critical patent/EP3832384A4/en
Priority to US16/960,511 priority patent/US20210063790A1/en
Publication of WO2020024822A1 publication Critical patent/WO2020024822A1/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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46—Fixing elements
    • G02F2201/465—Snap -fit
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular, to a liquid crystal panel, a manufacturing method and application thereof.
  • TFT-LCD is currently the most widely used display panel with mature technology and low cost.
  • a liquid crystal panel is a liquid crystal sandwiched between two pieces of glass, and the two pieces of glass are bonded together by a frame glue, which also plays a role of fixing the box and preventing liquid crystal leakage.
  • the frame adhesive itself has a certain moisture permeability, and the non-display area of the liquid crystal panel is getting smaller and smaller, which causes the width of the frame adhesive to be narrower and narrower, which causes water vapor to corrode the frame adhesive and the liquid crystal. Leaked situations.
  • the way to deal with the liquid leakage is to add a sealant process after the box-making process, that is, to add a screen sealant to the outer edge of the glass to reduce the risk of liquid leaks caused by the erosion of the frame sealant (see Figure 1).
  • a sealant process after the box-making process that is, to add a screen sealant to the outer edge of the glass to reduce the risk of liquid leaks caused by the erosion of the frame sealant (see Figure 1).
  • an additional sealing process is added to reduce production efficiency.
  • problems such as the sealing screen colliding and falling off often occur.
  • an object of the present invention is to provide a liquid crystal panel, a manufacturing method thereof, and an application thereof, which are aimed at solving the problem that the liquid crystal of the liquid crystal panel is easy to leak in the prior art.
  • a liquid crystal panel includes a first glass substrate, a second glass substrate, a liquid crystal layer, and a frame adhesive.
  • the frame adhesive is disposed on the periphery of the liquid crystal layer and is used to seal the first glass substrate and the second glass substrate into a box.
  • the liquid crystal layer is encapsulated between a first glass substrate and a second glass substrate after forming a box, and a circle of pressing bodies protruding toward the second glass substrate is provided around the edge of the first glass substrate.
  • the second glass substrate A groove body for accommodating the pressing body is arranged on the top, and a gap between the groove body and the pressing body is filled with a screen sealant, and the screen sealant and the frame sealant are simultaneously prepared and formed.
  • the pressing body is disposed between an edge of the first glass substrate and an outer periphery of the sealant.
  • the groove is formed by two closed annular protrusions, and the height of the annular protrusion near the edge of the second glass substrate is smaller than the height of the annular protrusion near the frame rubber.
  • the groove body is formed by two closed annular protrusions of the same shape but different sizes, and the inner and outer sleeves are formed.
  • the end of the pressing body is further provided with a plurality of openings.
  • the opening is provided along a direction from an inner side of the groove body toward an outer side.
  • a height of the groove body is greater than or equal to a height of the pressing body.
  • the frame glue is doped with a silicon sphere for supporting function.
  • a height of the silicon ball is greater than or equal to a height of the groove body.
  • the pressing body is made of one or more layers of a black matrix, a color photoresist, a spacer photoresist, a metal layer, and an insulating layer, and the groove body is made of a black matrix and color light. It can be made by stacking one or several layers of resistance, spacer photoresist, metal layer, and insulation layer.
  • liquid crystal panel wherein the liquid crystal panel further includes a color filter disposed between the first glass substrate, the liquid crystal layer and the second glass substrate, an alignment layer, and the first glass substrate and the second glass substrate. Outside polarizer.
  • a method for manufacturing a liquid crystal panel as described above comprising the steps of:
  • the liquid crystal is encapsulated in the area limited by the frame adhesive, and then the first glass substrate is pressed onto the second glass substrate, so that the pressing body is inserted into the frame adhesive, and the excess screen sealant in the tank overflows, and then is cured. LCD panel.
  • the spraying amount of the screen sealant the volume in the tank body-the volume of the pressing body + the required overflow amount of the screen sealant.
  • liquid crystal panel as described above, wherein the liquid crystal panel is applied to a mobile phone, a computer, a tablet, or a television.
  • the provided liquid crystal panel is provided with a pressing body and a groove body respectively surrounding the edges of the glass substrate on both sides of the liquid crystal panel.
  • the groove body receives the pressing body, and the gap between the groove body and the pressing body is filled.
  • the screen sealant can be firmly fitted on the LCD panel.
  • FIG. 1 is a schematic structural diagram of a liquid crystal panel manufactured by a conventional sealing process.
  • FIG. 2 is a schematic structural diagram of a liquid crystal panel according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a first glass substrate side of a liquid crystal panel according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a second glass substrate side of the liquid crystal panel according to the embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a manufacturing process of the liquid crystal panel according to an embodiment of the present invention.
  • a liquid crystal panel provided by an embodiment of the present invention includes a first glass substrate 10, a second glass substrate 20, a liquid crystal layer 30, and a frame adhesive 40.
  • the frame adhesive 40 is disposed on the first
  • the glass substrate 10 and the second glass substrate 20 are near edges, and are used to seal the two glass substrates 10 and 20 and the liquid crystal layer 30 between the two glass substrates 10 and 20 into a box, and surround the edge of the first glass substrate 10 ( On the outer side of the sealant 40, a pressing body 50 protruding toward the second glass substrate 20 is provided.
  • the second glass substrate 20 is provided with a groove body 60 for receiving the pressing body 50, that is, the groove body 60. It is arranged around the edge of the second substrate 20 and corresponds to the pressing body 50.
  • the gap between the groove body 60 and the pressing body 50 is filled with a screen sealant 70, and the screen sealant 70 and the frame adhesive 40 simultaneous formation.
  • liquid crystal display function in order to realize the liquid crystal display function, other functional layers such as a color filter, an alignment layer, and the like are provided between the first glass substrate 10, the liquid crystal layer 30, and the second glass substrate 20, and are disposed in the first A glass substrate 10 and a polarizing plate on the outside of the second glass substrate 20 and the like.
  • a color filter in order to realize the liquid crystal display function, other functional layers such as a color filter, an alignment layer, and the like are provided between the first glass substrate 10, the liquid crystal layer 30, and the second glass substrate 20, and are disposed in the first A glass substrate 10 and a polarizing plate on the outside of the second glass substrate 20 and the like.
  • the liquid crystal layer 30 and the first glass substrate 10 and the second glass substrate 20 are fixed into a box through the frame adhesive 40.
  • the frame adhesive 40 forms an internal barrier to prevent liquid crystal leakage; and the screen sealant 70 is filled in the groove.
  • the groove body 60 and the pressing body 50 are respectively disposed between the edge of the two glass substrates and the frame adhesive 40, that is, through the groove body 60, the pressing body 50, and the screen.
  • glue 70 encapsulates the frame glue 40 in two glass substrates, seals and protects the frame glue 40 to prevent it from being corroded by water vapor, and forms an external barrier to prevent liquid crystal leakage; in addition, because the pressure body 50 is covered by the groove body 60, and the screen sealant 70 is filled in the gap between the two. In this way, the existence of the pressing body 50 and the groove 60 can form a snap action on the screen sealant 70, and the screen sealant 70 is firmly fixed, and It will not easily fall off, which can effectively solve the problems in the prior art that simply adding a screen sealant to the outer edge of the glass causes the screen sealant to collide and fall off during the process of LCD panel transportation and assembly.
  • the screen sealant 70 and the frame sealant 40 are prepared and formed at the same time, and the frame sealant 40 is an existing process when the existing liquid crystal panel is manufactured. Therefore, the design of the present invention does not increase the production process of the screen sealant 70.
  • the sealant 40 is disposed between the two glass substrates around the liquid crystal layer 30.
  • the pressing body 50 in the present invention also surrounds the first The edge of the glass substrate 10 is disposed, that is, in some embodiments, it is disposed between the edge of the first glass substrate 10 and the outer periphery of the sealant 40 (as shown in FIG. 3), and has a closed structure as a whole.
  • the groove body 60 is formed by two closed loop-shaped protrusions, one inside and one jacket, and a gap is left between the two closed loop-shaped protrusions, and the gap is to receive the pressure.
  • the space of the body 50 makes the groove body 60 present an uninterrupted ring structure as a whole (as shown in FIG. 4), that is, the groove body 60 includes an inner closed annular protrusion and a sleeve disposed outside the inner closed annular protrusion.
  • the outer closed loop protrusion is smaller than the inner closed loop protrusion. That is, the height of the side of the groove 60 near the edge of the second glass substrate 20 is smaller than the height of the side near the frame seal 40.
  • the groove body 60 is formed by two closed annular protrusions of the same shape but different sizes through an inner and an outer sleeve.
  • the end of the pressing body 50 is further provided with a plurality of openings.
  • the opening is disposed laterally at the bottom of the pressing body 50, that is, along the direction of the inside of the groove body 60 toward the outside. Flow outward.
  • the pressing body 50 is close to the inside of the slot body 60 when it is received in the slot body 60 to reduce the amount of screen sealant overflowing to the inside and prevent the screen sealant from flowing toward the slot body 60. Excessive internal overflow pollutes the internal liquid crystal display area without affecting the sealing and fixing effect of the screen sealant 70.
  • the frame adhesive 40 is doped with silicon balls for supporting function; in some specific embodiments, the height of the silicon balls is greater than or equal to that of the groove 60. height.
  • the function of the sealant 40 is to bond two glass substrates together and encapsulate the internal liquid crystal, it is necessary to ensure that there is a certain space between the first glass substrate 10 and the second glass substrate 20 because a liquid crystal space must be left.
  • the silicon ball can play its inherent supporting role, which can ensure that the gap between the two glass substrates is uniform, and eventually the TFT-LCD will not display poorly.
  • the height of the groove body 60 should be greater than or equal to the height of the pressure body 50.
  • the pressing body 50 and the groove body 60 of the liquid crystal panel can be manufactured without adding additional materials and extra production.
  • the pressing body 50 can be made of a black matrix, a color photoresist, and a spacer photoresist.
  • the metal layer, and the insulating layer are made by stacking one or more layers, and the groove body 60 may also be made by one or more layers of the black matrix, the color photoresist, the gap photoresist, the metal layer, and the insulating layer. .
  • the invention also provides a method for manufacturing a liquid crystal panel as described above, which includes the steps:
  • a frame sealant for encapsulating a liquid crystal is produced on a second glass substrate, and a screen sealant is sprayed into the groove;
  • the spraying amount of the screen sealant is the volume of the tank body minus the volume of the pressure body, plus the required amount of overflow of the screen sealant, that is, the spraying of the screen sealant.
  • Amount the volume in the tank-the volume of the pressing body + the amount of spillage required by the screen sealant to ensure that the edge of the frame sealant is sealed by the screen sealant while ensuring that the screen sealant does not spill out of the LCD panel.
  • step S2 by pressing the first glass substrate on the second glass substrate, the pressing body is inserted into the frame, that is, the pressing body is accommodated in the groove body, and the The first glass substrate is positioned and fixed on the second glass substrate under the effect of the compression body and the tank body.
  • the excess screen sealant in the tank overflows and then solidifies.
  • the curing process includes thermal curing and ultraviolet curing. Both the frame adhesive and the screen sealant are cured.
  • the existing liquid crystal panel sealing screen manufacturing process for responding to liquid leakage includes frame coating, assembly alignment, thermal curing, primary ultraviolet light curing, screen sealant coating and secondary ultraviolet light curing.
  • a box forming process is performed after the two glass substrates are manufactured, and the screen sealant is coated in the tank body, as shown in FIG. 5.
  • Glue and screen glue can be synchronized with two nozzles at the same time, which can reduce manufacturing time and improve production efficiency.
  • the pressing body When the pressing body is inserted into the tank body, the pressing body will squeeze the screen sealant from the tank body. Because the outer tank body is lower than the inner side, the screen sealant will flow along the outer tank body. The final effect is shown in Figure 2.
  • the curing process of the screen sealant can be completed simultaneously without additional steps, and it can be sealed with the existing liquid crystal panel. Compared with the screen manufacturing process, a separate UV curing process for the screen sealant is omitted.
  • the invention does not need to add new materials and new processes, can realize the application and curing of the screen sealant, and simplifies the original process.
  • the tank design also increases the ability to prevent water vapor intrusion and enhances the reliability of the liquid crystal panel.
  • An embodiment of the present invention also provides an application of the liquid crystal panel as described above, wherein the liquid crystal panel is applied to a mobile phone, a computer, a tablet, or a television.
  • a pressing body and a groove are respectively provided between the frame adhesive and the edge of the glass substrate on both sides of the liquid crystal panel, and the groove houses the pressing body, and the The gap between the tank and the pressure body is filled with screen sealant. This not only seals the frame sealant with the screen sealant to prevent water vapor corrosion on its back, but also avoids the problem of liquid leakage. At the same time, because of the arrangement of the pressure body and the tank, the seal is sealed.
  • the screen adhesive can be firmly fitted between the edge of the glass substrate on both sides of the LCD panel and the frame adhesive, without being easily knocked off, and avoiding the problem that the frame adhesive is corroded by water vapor and caused the liquid crystal to leak out. It is easy to assemble and transport, and solves the problem that the liquid crystal panel easily leaks liquid crystal in the prior art.

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

Abstract

一种液晶面板及其制作方法和应用，其中液晶面板包括第一玻璃基板（10）、第二玻璃基板（20）、液晶层（30）及框胶（40），框胶（40）设置在液晶层（30）外周并用于将第一玻璃基板（10）与第二玻璃基板（20）密封成盒，液晶层（30）封装在成盒后的第一玻璃基板（10）与第二玻璃基板（20）之间，环绕第一玻璃基板（10）的边缘设置有一圈向第二玻璃基板（20）凸出的压体（50），第二玻璃基板（20）上设置有收容压体（50）的槽体（60），槽体（60）与压体（50）之间的间隙内填充有封屏胶（70），封屏胶（70）与框胶（40）同时制备形成，从而解决现有技术中液晶面板的液晶容易漏出的问题。

Description

一种液晶面板及其制作方法、应用 技术领域
涉及液晶显示技术领域，尤其涉及一种液晶面板及其制作方法、应用。
背景技术
TFT-LCD是目前应用最为广泛的显示面板，技术成熟且成本较低。但在实际使用中，经常出现漏液的问题。简单来说，液晶面板是两片玻璃中间夹着液晶，两片玻璃中间以框胶来粘合在一起，框胶也就起到固定成盒及防止液晶漏液的作用。但是框胶本身具有一定的透湿率，而且目前液晶面板的非显示区域越来越小造成框胶的幅宽也越来越窄，导致液晶面板在实际使用中经常出现水汽腐蚀框胶、液晶漏出的情况。
目前应对漏液的方式是成盒制程之后再增加一道封胶制程，即在玻璃外缘增加一道封屏胶，降低水汽侵蚀框胶造成漏液的风险(如图1所示)。这种方式额外增加一道封胶制程，降低生产效率，在液晶面板运输，组装整机等过程中经常发生封屏胶碰撞脱落等问题。
因此，现有技术还有待于改进和发展。
发明内容
鉴于上述现有技术的不足，本发明的目的在于提供一种液晶面板及其制作方法、应用，旨在解决现有技术中液晶面板液晶容易漏出的问题。
本发明的技术方案如下：
一种液晶面板，其中，包括第一玻璃基板、第二玻璃基板、液晶层及框胶，所述框胶设置在液晶层外周并用于将第一玻璃基板与第二玻璃基板密封成盒，所述液晶层封装在成盒后的第一玻璃基板与第二玻璃基板之间，环绕所述第一玻璃基板的边缘设置有一圈向第二玻璃基板凸出的压体，所述第二玻璃基板上设置有收容所述压体的槽体，所述槽体与压体之间的间隙内填充有封屏胶，所述封屏胶与框胶同时制备形成。
所述的液晶面板，其中，所述压体设置在第一玻璃基板的边缘与框胶外周之 间。
所述的液晶面板，其中，所述槽体由两个闭环状凸起套设形成，且靠近第二玻璃基板边缘的环状凸起的高度小于靠近框胶的环状凸起的高度。
所述的液晶面板，其中，所述槽体由两个形状一样而大小不一的闭环状凸起经一内一外套设形成。
所述的液晶面板，其中，所述压体的端部还设置有若干开口。
所述的液晶面板，其中，所述开口沿槽体内侧朝外侧的方向设置。
所述的液晶面板，其中，所述压体在收容入槽体时靠近槽体内侧。
所述的液晶面板，其中，所述槽体的高度大于或等于所述压体的高度。
所述的液晶面板，其中，所述框胶中掺杂有起支撑作用的硅球。
所述的液晶面板，其中，所述硅球的高度大于或等于所述槽体的高度。
所述的液晶面板，其中，所述压体由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成，所述槽体由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成。
所述的液晶面板，其中，所述液晶面板还包括设置在第一玻璃基板、液晶层及第二玻璃基板之间的彩色滤光片、配向层以及设置在第一玻璃基板及第二玻璃基板外侧的偏光板。
一种如上所述的液晶面板的制作方法，其中，包括步骤：
在第二玻璃基板上制作封装液晶的框胶，同时将封屏胶喷涂于所述槽体内；
将液晶封装在框胶限定的区域内，然后将第一玻璃基板压合在第二玻璃基板上，使得压体插入框胶内、槽体内多余的封屏胶溢出，再固化，即得所述液晶面板。
所述的液晶面板的制作方法，其中，所述封屏胶的喷涂量＝槽体内体积-压体的体积+封屏胶所需溢出量。
一种如上所述的液晶面板的的应用，其中，将所述液晶面板应用于手机、电脑、平板或电视中。
有益效果：所提供的液晶面板，通过环绕液晶面板两侧的玻璃基板的边缘分别设置压体与槽体，槽体收容所述压体，且所述槽体与压体之间的间隙内填充有封屏胶，这样不仅通过封屏胶将框胶封装起来，防止其背水汽腐蚀，避免漏液问 题，同时因为压体与槽体的设置，封屏胶能够牢牢嵌合在液晶面板两侧的玻璃基板的边缘与框胶之间，而不会轻易被碰撞脱落，也避免了由此带来的框胶被水汽腐蚀导致液晶漏出的问题，便于组装及运输，解决了现有技术中液晶面板液晶容易漏出的问题。
附图说明
图1为传统的封胶制程制作的液晶面板的结构示意图。
图2为本发明实施方式中所述液晶面板的结构示意图。
图3为本发明实施方式中所述液晶面板的第一玻璃基板一侧的结构示意图。
图4为本发明实施方式中所述液晶面板的第二玻璃基板一侧的结构示意图。
图5为本发明实施方式中所述液晶面板的制作过程示意图。
具体实施方式
为使本发明的目的、技术方案及效果更加清楚、明确，以下对本发明进一步详细说明。应当理解，此处所描述的实施方式和具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明的实施方式提供的一种液晶面板，如图2～4所示，包括第一玻璃基板10、第二玻璃基板20、液晶层30及框胶40，所述框胶40设置在第一玻璃基板10与第二玻璃基板20靠近边缘处，用以将两玻璃基板10、20以及两玻璃基板10、20之间的液晶层30密封成盒，环绕所述第一玻璃基板10的边缘(框胶40的外侧)设置有一圈向第二玻璃基板20凸出的压体50，所述第二玻璃基板20上设置有收容所述压体50的槽体60，也即所述槽体60环绕所述第二基板20的边缘设置并与所述压体50相对应，所述槽体60与压体50之间的间隙内填充有封屏胶70，所述封屏胶70与框胶40同时制备形成。
显然，在一些实施方式中，为了实现液晶显示功能，在第一玻璃基板10、液晶层30及第二玻璃基板20之间还包括彩色滤光片、配向层等其他功能层，以及设置在第一玻璃基板10及第二玻璃基板20外侧的偏光板等。
本发明中，通过框胶40将液晶层30与第一玻璃基板10及第二玻璃基板20固定成盒，框胶40形成了防止液晶漏液的内部屏障；而封屏胶70填充在位于槽 体60与压体50之间的间隙内，而槽体60及压体50又分别设置在两张玻璃基板的边缘与框胶40之间，也即通过槽体60、压体50及封屏胶70的组合作用将框胶40封装在两张玻璃基板内，对框胶40进行密封保护，防止其被水汽腐蚀，形成了防止液晶漏液的外部屏障；另外，因为压体50被槽体60收容，而封屏胶70填充在二者之间的间隙内，这样压体50与槽体60的存在可形成对封屏胶70的卡合作用，将封屏胶70牢牢固定住，而不会被轻易脱落下来，能够有效解决现有技术中，简单在玻璃外缘增加一道封屏胶导致其在液晶面板运输，组装整机等过程中经常发生封屏胶碰撞脱落等的问题。另外，本发明中所述封屏胶70与框胶40同时制备形成，而框胶40是现有液晶面板制作时既有工序，因而本发明设计不会增加封屏胶70的制作工序。
所述的液晶面板中，框胶40是围绕液晶层30设置在两张玻璃基板之间的，为了充分实现对框胶40的密封保护，本发明中所述压体50也环绕所述第一玻璃基板10的边缘设置，即在一些实施方式中，设置在第一玻璃基板10的边缘与框胶40外周之间(如图3所示)，整体呈一闭合状结构。
在一些实施方式中，所述槽体60由两个整个呈闭环状的凸起一内一外套设形成，两个闭环状的凸起之间留有间隙，所述间隙即为收容所述压体50的空间，使得所述槽体60整体呈一不间断的环形结构(如图4所示)，即所述槽体60包括内侧闭环状凸起及套设在内侧闭环状凸起外侧的外侧闭环状凸起，并且外侧闭环状凸起的高度小于内侧闭环状凸起的高度，即设置槽体60靠近第二玻璃基板20边缘的一侧高度小于靠近框胶40的一侧高度，这样两张玻璃基板对组完成后会在槽体60外侧与第一玻璃基板10之间留出封屏胶挤压口，将预先填充在槽体60内的多余封屏胶优先向外侧流出而不会向内侧溢出，防止污染内部液晶显示区域。在一些具体实施方式中，所述槽体60由两个形状一样而大小不一的闭环状凸起经一内一外套设形成。
在一些实施方式中，所述压体50的端部还设置有若干开口。在一些具体实施方式中，所述开口横向设置在压体50的底部，即沿槽体60内侧朝外侧的方向，这样的开口设置便于压体内侧的封屏胶70通过压体50上的开口向外侧流动。
在一些实施方式中，在所述的液晶面板中，所述压体50在收容入槽体60时靠近槽体60内侧，以减少封屏胶向内侧溢出量，防止封屏胶向槽体60内侧溢 出过多污染内部液晶显示区域，同时又不影响封屏胶70的封装及固定效果。
在一些实施方式中，所述的液晶面板中，所述框胶40中掺杂有起支撑作用的硅球；在一些具体实施方式中，且硅球的高度大于或等于所述槽体60的高度。虽然框胶40的作用是将两张玻璃基板粘合在一起并对内部液晶进行封装，但是因为必须留有液晶空间，因而需要保证第一玻璃基板10与第二玻璃基板20之间具有一定的间隙，因此需要在框胶40中掺杂其支撑作用的硅球，防止第一玻璃基板10与第二玻璃基板20过近贴合影响液晶层结构；而设置硅球的高度大于或等于槽体的高度，首先能够硅球起到其固有的支撑作用，可保证两张玻璃基板之间间隙均匀，最终TFT-LCD不会出现显示不良；在一些具体实施方式中，因为要实现槽体60对压体50的收容作用，槽体60的高度应大于或等于压体50的高度。
所述的液晶面板的压体50和槽体60的制作无需增加额外的材料与额外的制成，在一些实施方式中，所述压体50可由由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成，所述槽体60同样可以由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成。
本发明还提供了一种如上所述的液晶面板的制作方法，其中，包括步骤：
S1、在第二玻璃基板上制作封装液晶的框胶，同时将封屏胶喷涂于所述槽体内；
S2、将液晶封装在框胶限定的区域内，然后将第一玻璃基板压合在第二玻璃基板上，使得压体插入框胶内、槽体内多余的封屏胶溢出，再固化，即得所述液晶面板。
在一些实施方式中，所述步骤S1中，所述封屏胶的喷涂量为槽体内体积减去压体的体积，再加上封屏胶所需溢出量，即所述封屏胶的喷涂量＝槽体内体积-压体的体积+封屏胶所需溢出量，以实现通过封屏胶封装框胶边缘的同时，保证封屏胶不会溢出到液晶面板之外。
在一些实施方式中，所述步骤S2中，通过将第一玻璃基板压合在第二玻璃基板上，使得压体插入框胶内，即实现将压体收容入槽体中，从而在框胶作用及压体与槽体的收容作用下将第一玻璃基板定位固定在第二玻璃基板上，槽体内多余的封屏胶溢出，再固化，所述固化过程包括热固化及紫外光固化，以将框胶及 封屏胶均固化住。
现有的应对漏液的液晶面板封屏制造过程包括框架涂布、组立对位、热固化、一次紫外光固化、封屏胶涂布和二次紫外光固化。而本发明的实施方式中，因为槽体及压体均是预先设置好的，在两张玻璃基板制造完成后进行成盒工序，封屏胶涂布于槽体内，如图5所示，框胶与封屏胶可以使用两个喷嘴同时同步，可以减少制造时间，提升制作效率。在压体插入槽体内时，压体会将封屏胶从槽体中挤出，因外侧槽体低于内侧，封屏胶会沿着外侧槽体流动，最终形成的效果如图2所示，对组之后再进行热固化与紫外光固化，因为框胶本身制造既需要照射紫外光，所以在此处可以实现不增加工序既可同步完成封屏胶固化工序，而且与现有的液晶面板封屏制造过程相比，省去了一个单独为封屏胶进行紫外光固化的工序。
本发明不需增加新材料、新工艺既可以实现封屏胶的涂布于固化，而且简化了原有工序，同时槽体设计也增加了防护水汽侵入的能力，增强了液晶面板的可靠度。
本发明的实施方式还提供了一种如上所述的液晶面板的的应用，其中，将所述液晶面板应用于手机、电脑、平板或电视中。
综上所述，本发明的实施方式提供的液晶面板，通过在框胶与液晶面板两侧的玻璃基板的边缘之间分别设置压体与槽体，槽体收容所述压体，且所述槽体与压体之间的间隙内填充有封屏胶，这样不仅通过封屏胶将框胶封装起来，防止其背水汽腐蚀，避免漏液问题，同时因为压体与槽体的设置，封屏胶能够牢牢嵌合在液晶面板两侧的玻璃基板的边缘与框胶之间，而不会轻易被碰撞脱落，也避免了由此带来的框胶被水汽腐蚀导致液晶漏出的问题，便于组装及运输，解决了现有技术中液晶面板容易出现液晶漏出的问题。
应当理解的是，本发明的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (15)

  1. 一种液晶面板，其特征在于，包括第一玻璃基板、第二玻璃基板、设于所述第一玻璃基板与第二玻璃基板之间的液晶层及用以将所述第一玻璃基板与第二玻璃基板密封成盒的框胶，环绕所述第一玻璃基板的边缘设置有一圈向第二玻璃基板凸出的压体，所述第二玻璃基板上设置有收容所述压体的槽体，所述槽体与压体之间的间隙内填充有封屏胶，所述封屏胶与框胶同时制备形成。
  2. 根据权利要求1所述的液晶面板，其特征在于，所述压体设置在第一玻璃基板的边缘与框胶外周之间。
  3. 根据权利要求1所述的液晶面板，其特征在于，所述槽体由两个闭环状凸起套设形成，且靠近第二玻璃基板边缘的环状凸起的高度小于靠近框胶的环状凸起的高度。
  4. 根据权利要求3所述的液晶面板，其特征在于，所述槽体由两个形状一样而大小不一的闭环状凸起经一内一外套设形成。
  5. 根据权利要求1所述的液晶面板，其特征在于，所述压体的端部还设置有若干开口。
  6. 根据权利要求5所述的液晶面板，其特征在于，所述开口沿槽体内侧朝外侧的方向设置。
  7. 根据权利要求3所述的液晶面板，其特征在于，所述压体在收容入所述槽体时靠近所述槽体内侧。
  8. 根据权利要求1所述的液晶面板，其特征在于，所述槽体的高度大于或等于所述压体的高度。
  9. 根据权利要求1所述的液晶面板，其特征在于，所述框胶中掺杂有起支撑作用的硅球。
  10. 根据权利要求9所述的液晶面板，其特征在于，所述硅球的高度大于或等于所述槽体的高度。
  11. 根据权利要求5所述的液晶面板，其特征在于，所述压体由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成，所述槽体由黑色矩阵、彩色光阻、间隙物光阻、金属层、绝缘层中一层或者几层堆叠制成。
  12. 根据权利要求1所述的液晶面板，其特征在于，还包括设置在第一玻璃基板、液晶层及第二玻璃基板之间的彩色滤光片、配向层以及设置在第一玻璃基 板及第二玻璃基板外侧的偏光板。
  13. 一种如权利要求1～12任一所述的液晶面板的制作方法，其特征在于，包括步骤：
    在第二玻璃基板上制作封装液晶的框胶，同时将封屏胶喷涂于所述槽体内；
    将液晶封装在框胶限定的区域内，然后将第一玻璃基板压合在第二玻璃基板上，使得压体插入所述槽体内、槽体内多余的封屏胶溢出，固化，即得所述液晶面板。
  14. 根据权利要求13所述的液晶面板的制作方法，其特征在于，所述封屏胶的喷涂量＝槽体内体积-压体的体积+封屏胶所需溢出量。
  15. 一种如权利要求1～13任一所述的液晶面板的的应用，其特征在于，将所述液晶面板应用于手机、电脑、平板或电视中。
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US20210063790A1 (en) 2021-03-04

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