WO2012139308A1 - 液晶框胶成型装置及显示面板组装设备 - Google Patents

液晶框胶成型装置及显示面板组装设备 Download PDF

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Publication number
WO2012139308A1
WO2012139308A1 PCT/CN2011/073341 CN2011073341W WO2012139308A1 WO 2012139308 A1 WO2012139308 A1 WO 2012139308A1 CN 2011073341 W CN2011073341 W CN 2011073341W WO 2012139308 A1 WO2012139308 A1 WO 2012139308A1
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WIPO (PCT)
Prior art keywords
liquid crystal
substrate
sealant
molding
dropping
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Ceased
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PCT/CN2011/073341
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English (en)
French (fr)
Inventor
王赟
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Publication of WO2012139308A1 publication Critical patent/WO2012139308A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0038—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving application of liquid to the layers prior to lamination, e.g. wet laminating
    • 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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0076—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised in that the layers are not bonded on the totality of their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0076—Curing, vulcanising, cross-linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/202—LCD, i.e. liquid crystal displays
    • 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
    • G02F1/1341—Filling or closing of cells
    • G02F1/13415—Drop filling process

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular to a liquid crystal frame glue molding device and a display panel assembly device thereof.
  • Liquid crystal display (Liquid Crystal Display, LCD) has been widely used in a variety of electronic products, most of the liquid crystal display is a backlight type liquid crystal display, which is composed of a liquid crystal display panel and a backlight module (backlight Module).
  • the liquid crystal display panel is composed of two transparent substrates and a liquid crystal sealed between the substrates. In the assembly process of the liquid crystal display panel, the liquid crystal is filled and sealed between the transparent substrates.
  • the existing method of filling a liquid crystal between transparent substrates is a liquid crystal injection method (vacuum) Siphon method) and one drop filling (ODF), in which the liquid crystal dropping method (ODF) is suitable for application to a large-sized panel.
  • the liquid crystal dropping process in the liquid crystal dropping process, the liquid crystal is first dropped on a glass substrate through a nozzle (Nozzle). Then, another glass substrate can be aligned and combined on the glass substrate on which the liquid crystal is dropped, thereby forming a liquid crystal cell (Liquid Crystal Cell is between the two glass substrates, and the liquid crystal cell is sealed between the two glass substrates by a frame glue, wherein the frame glue is coated by the nozzle of the seal coater. Next, the sealant between the two glass substrates is cured to form a liquid crystal display panel.
  • a nozzle Nozzle
  • the general sealant coating and liquid crystal dripping are performed by different machines, and in the process of the sealant coating, the gap of the sealant is uneven or broken due to nozzle clogging or abnormal pressure. Further, during the liquid crystal dropping process, air is likely to be mixed into the liquid crystal, and the problem of leakage or dripping is abnormal.
  • the present invention provides a liquid crystal forming apparatus and a display panel assembling apparatus using the same to solve the problems occurring in the process of molding a liquid crystal and a sealant.
  • the main object of the present invention is to provide a liquid crystal sealant molding apparatus for coating liquid crystal and a sealant on a substrate, the liquid crystal sealant molding apparatus comprising:
  • a sealant coating port which is an annular groove formed on the molded substrate, surrounds the liquid crystal drop port for receiving and accommodating the sealant, and coating the sealant on the substrate .
  • Another object of the present invention is to provide a display panel assembly apparatus, the display panel including a first substrate and a second substrate, and the display panel assembly apparatus includes:
  • Liquid crystal frame molding device including:
  • a sealant coating port which is an annular groove formed on the molded substrate, surrounds the periphery of the liquid crystal drop port, and is used for receiving and accommodating the sealant, and coating the sealant on the substrate;
  • a aligning device for aligning and combining the second substrate on the first substrate to form a display panel
  • a conveying device for conveying the display panel from the alignment combination device
  • a curing device for curing the sealant from the conveying device.
  • the liquid crystal sealant molding apparatus further includes a registration sensor disposed on the molding substrate for detecting whether the molding substrate is accurately positioned above the substrate.
  • the plurality of liquid crystal dropping ports are spaced apart, and a predetermined spacing between the adjacent liquid crystal dropping ports is provided.
  • the sealant coating port is connected to a frame glue tank, and the sealant coating port is provided with a solenoid valve switch for controlling the amount of sealant in the frame glue tank.
  • the sealant coating port is connected to the air pressure device for applying the sealant that has been previously injected into the sealant coating port to the substrate under the stamping of the gas.
  • the number of the sealant coating ports is two, and the concentric circles are disposed around the liquid crystal drip opening.
  • the liquid crystal sealant molding apparatus further includes a plurality of measuring cylinders, the measuring cylinders are disposed on the molding substrate, and one end of each measuring cylinder is connected to a liquid crystal tank for receiving and receiving from the liquid crystal trough.
  • the liquid crystal is disposed, and the other end of each measuring cylinder is connected to the liquid crystal dropping port for dropping the liquid crystal in the measuring cylinder onto the substrate through the liquid crystal dropping port when the liquid crystal is dropped.
  • a liquid crystal amount controller is disposed on the measuring cylinder for detecting the amount of liquid crystal in the measuring cylinder, and the liquid crystal quantity controller has a solenoid valve for controlling opening and closing of the measuring cylinder. The amount of liquid crystal entering the cylinder from the liquid crystal cell is controlled.
  • the measuring cylinder is connected to a pneumatic device for dropping liquid crystal onto the substrate under the stamping of a gas.
  • the liquid crystal frame molding device of the present invention and the display panel assembly device thereof can improve the bubble problem of the liquid crystal and the unevenness of the sealant, and can Significantly reduce the molding time of liquid crystal and sealant. Furthermore, the display panel assembly apparatus of the present invention can utilize a single device to simultaneously form a liquid crystal and a frame glue on the substrate, thereby saving equipment costs.
  • the liquid crystal frame glue molding device of the invention and the display panel assembly device thereof can improve the bubble problem of the liquid crystal and the problem of unevenness of the sealant, and can greatly reduce the molding time of the liquid crystal and the sealant. Furthermore, the display panel assembly apparatus of the present invention can utilize a single device to simultaneously form a liquid crystal and a frame glue on the substrate, thereby saving equipment costs.
  • FIG. 1 is a schematic view showing a first embodiment of a liquid crystal sealant molding apparatus of the present invention
  • Figure 2 is a partial cross-sectional view showing a first embodiment of the liquid crystal sealant molding apparatus of the present invention
  • FIG. 3 is a cross-sectional view of a display panel fabricated by the liquid crystal sealant molding apparatus of FIG. 1;
  • FIG. 4 is a schematic view of a measuring cylinder, a liquid crystal dropping port and a liquid crystal cell of the first embodiment of the liquid crystal frame molding device of the present invention
  • Figure 5 is a perspective view of a first embodiment of the liquid crystal sealant molding apparatus of the present invention.
  • Figure 6 is a schematic view of a display panel assembly apparatus of the present invention.
  • Figure 7 is a schematic view showing a second embodiment of the liquid crystal sealant molding apparatus of the present invention.
  • FIG. 8 is a schematic view of a display panel fabricated by the liquid crystal sealant molding apparatus of FIG. 7.
  • FIG. 1 is a schematic view showing a first embodiment of a liquid crystal sealant molding apparatus according to the present invention
  • FIG. 2 is a partial cross-sectional view showing a first embodiment of the liquid crystal sealant molding apparatus of the present invention.
  • the liquid crystal sealant molding apparatus 110 of the present embodiment can drop the liquid crystal and the coating sealant 105 on the first substrate 102.
  • the liquid crystal sealant molding apparatus 110 includes a molding substrate 111, a plurality of measuring cylinders 112, a plurality of liquid crystal dropping ports 113, and at least A sealant coating port 114, at least a pair of position sensors 115, and a liquid crystal cell 116.
  • FIG. 3 is a cross-sectional view of the display panel produced by the liquid crystal sealant molding device of FIG. 1 .
  • the liquid crystal display panel 101 includes a first substrate 102, a second substrate 103, a liquid crystal layer 104, and a sealant 105.
  • the liquid crystal layer 104 and the sealant 105 are formed between the first substrate 102 and the second substrate 103, and the sealant 105 is surrounded. And sealing the liquid crystal layer 104 to form at least one liquid crystal cell (liquid Crystal Cell).
  • two sealants 105 are disposed between the first substrate 102 and the second substrate 103. However, only one or both of the first substrate 102 and the second substrate 103 may be included.
  • the substrate material of the first substrate 102 and the second substrate 103 is a glass substrate or a flexible plastic substrate.
  • the first substrate 102 has a color filter (Color).
  • the second substrate 103 is a thin film transistor matrix (Thin Film) Transistor, TFT) glass substrate or substrate of other materials.
  • the sealant 105 is formed into a frame-like structure to surround the liquid crystal layer 104.
  • the sealant 105 is a light-curing adhesive or a heat-curing adhesive, and the light-curing adhesive is a UV-curable adhesive or a visible light-curing adhesive (Visible). Light Curing Glue).
  • FIG. 4 is a schematic view of a measuring cylinder, a liquid crystal dropping port and a liquid crystal cell of the first embodiment of the liquid crystal frame molding device of the present invention
  • FIG. 5 is a liquid crystal frame glue of the present invention.
  • the molded substrate 111 is preferably in the form of a flat plate, and the area of the molded substrate 111 is at least larger than the area surrounded by the sealant 105.
  • the molded substrate 111 is preferably made of a transparent material such as glass to facilitate alignment between the molded substrate 111 and the first substrate 102.
  • the measuring cylinder 112 is connected between the liquid crystal dropping port 113 and the liquid crystal cell 116 for receiving and accommodating the liquid crystal.
  • a liquid crystal amount controller 117 is installed at the entrance of the channel of the measuring cylinder 112 for detecting the amount of liquid crystal in the measuring cylinder 112, and controlling the opening and closing of the measuring cylinder 112 by a solenoid valve to control the amount of liquid crystal entering the measuring cylinder 112.
  • the liquid crystal dropping port 113 is spaced apart and disposed on one side of the molding substrate 111, and is connected to a liquid crystal cell 116 for dropping liquid crystal on the first substrate 102, wherein each of the two adjacent liquid crystal dropping ports 113 has a
  • the preset pitch is used to control the thickness and quality of the liquid crystal layer 104.
  • the sealant coating port 114 is an annular groove 113 formed on the molding substrate 111, and is connected to a frame glue groove 118 for receiving and accommodating the sealant, and the frame glue 105 is on the first substrate 102.
  • the width and height of the coated sealant 105 can be adjusted by changing the width and height of the opening of the sealant coating opening 114, and the solenoid valve switch is passed between the sealant coating port 114 and the sealant tank 118. The figure is not shown) to switch the injection of the sealant, and the solenoid valve switch is used to control the amount of sealant in the frame glue tank.
  • the registration sensor 115 is, for example, an image sensing component such as a charge coupled device (Charge-coupled) Device, CCD) or complementary metal oxide semiconductor (complementary metal oxide) Semiconductor, CMOS), which may be disposed at a corner or edge of the molding substrate 111, for detecting whether the molding substrate 111 is accurately positioned above the first substrate 102.
  • CCD charge coupled device
  • CMOS complementary metal oxide semiconductor
  • the number of the at least one sealant coating opening 114 is two, which is arranged around the liquid crystal drip opening 113 in a manner similar to a concentric circle, and the two sealant coating ports 114 are The shape is similar to a concentric rectangle, which is used to form the main frame glue (main Seal) and dummy seal.
  • the at least one sealant coating opening 114 may also be one for coating a sealant 105.
  • the liquid crystal glue forming device 110 may further include other detectors (not shown), such as a liquid crystal fill detector, a leak detector or a frame fill detector for detecting liquid crystal.
  • a liquid crystal fill detector such as a liquid crystal fill detector, a leak detector or a frame fill detector for detecting liquid crystal.
  • the filling condition in the liquid crystal dropping port 113, whether the liquid crystal leaks, or the filling of the sealant in the sealant coating opening 114 can ensure the formation quality of the liquid crystal layer 104 and the sealant 105.
  • the molding substrate 111 is moved to a suitable height above the first substrate 102 by a driving device, for example, above the first substrate 102. 5mm. Next, through the alignment sensor 115, the molded substrate 111 can be accurately positioned above the first substrate 102. Next, when the liquid crystal is to be dropped and the sealant is applied, the molded substrate 111 is lowered to a predetermined height to drip the liquid crystal and apply the sealant. At this time, the gap between the molded substrate 111 and the first substrate 102 is preferably 0.5 to 2 Mm. Then, the liquid crystal frame molding apparatus 110 can drop the liquid crystal at the same time or sequentially and apply the sealant on the first substrate 102.
  • the liquid crystal in the liquid crystal cell 116 is first pumped into each of the measuring cylinders 112 by the pump 119, and the sealant in the frame plastic tank 116 is pre-treated. It is injected into the sealant coating opening 114. Then, the liquid crystal in the measuring cylinder 112 can be dropped onto the first substrate 102 through the liquid crystal dropping port 113 by a gas pressure device (not shown) and pressed by a gas (such as nitrogen) to form the liquid crystal layer 104 on the first substrate. 102.
  • the sealant in the sealant coating port 114 can also be applied to the first substrate 102 by a pneumatic device (not shown) and pressed by a gas (such as nitrogen) to form the sealant 105 on the first substrate. 102.
  • FIG. 6 is a schematic diagram of a display panel assembly apparatus of the present invention.
  • the display panel assembly apparatus 100 of the present embodiment is used to manufacture the liquid crystal display panel 101.
  • the display panel assembly apparatus 100 may include a liquid crystal frame molding apparatus 110, a registration unit 120, a conveying apparatus 130, and a curing apparatus 140.
  • the liquid crystal frame molding apparatus 110 is configured to form the liquid crystal layer 104 and the sealant 105 on the first substrate 102.
  • the aligning device 120 can be disposed behind the liquid crystal sizing device 110 for aligning and combining the second substrate 103 on the first substrate 102 to form the display panel 101. As shown in FIG.
  • the alignment device 120 preferably aligns and combines the first substrate 102 and the second substrate 103 in a vacuum environment to reduce defects such as bubbles.
  • the alignment device 120 can be located in a vacuum chamber (Vacuum)
  • the alignment of the first substrate 102 and the second substrate 103 is performed internally.
  • the conveying device 130 may be disposed between the registration device 120 and the curing device 140 for conveying the display panel 101 from the registration device 120 to the curing device 140.
  • the transport device 130 can transport the display panel 101 by a robot arm, a roller assembly, or the like.
  • the curing device 140 is disposed after the alignment assembly 120 for completely curing the sealant 105.
  • the curing device 140 can utilize light curing (light Curing method or heat curing
  • the sealant 105 between the first substrate 102 and the second substrate 103 is cured.
  • the photocuring method can cure the sealant 105 by visible light (wavelength of about 380 nm to 780 nm) or invisible light (such as ultraviolet light or infrared light).
  • the curing device 140 is a light irradiator for irradiating light to the sealant. 105, and achieve the effect of light curing.
  • the curing device 140 can be hot pressed (Hot Pressure) and other thermal curing methods to cure the sealant 105.
  • the liquid crystal dropping port 113 of the liquid crystal gel molding apparatus 110 of the present embodiment only needs to perform a liquid crystal dropping step to simultaneously drop a plurality of liquid crystals, thereby forming the liquid crystal layer 104 of the entire panel. Therefore, the problem of air bubble incorporation can be reduced, and the time for the liquid crystal dropping process can be greatly reduced.
  • the sealant 105 is applied to the first substrate 102 through the annular sealant coating opening 114 provided around the liquid crystal drip opening 113, the entire sealant 105 can be formed in one spray step, thereby improving The width of the sealant is uneven or broken, and the time of the sealant coating process can be greatly reduced. Furthermore, since the liquid crystal and the sealant can be simultaneously formed on the substrate 102 by the liquid crystal sealant molding apparatus 110, the conveyance process of the substrate can be reduced.
  • FIG. 7 is a schematic view of a second embodiment of the liquid crystal sealant molding apparatus of the present invention
  • FIG. 8 is a schematic view of the display panel produced by the liquid crystal sealant molding apparatus of FIG. Only the differences between the present embodiment and the first embodiment will be described below, and the similarities are not described herein again.
  • the liquid crystal sealant molding apparatus 210 of the second embodiment includes a plurality of sealant coating ports 213 which are arranged in a matrix on the molding substrate 211, and each annular sealant coating port 213 A plurality of liquid crystal dropping ports 212 are provided therein.
  • the liquid crystal frame molding apparatus 210 When the liquid crystal layer 204 and the sealant 205 are formed on the first substrate 202 by the liquid crystal frame molding apparatus 210, a plurality of sealant 205 are simultaneously formed on the first substrate 202 by using the sealant coating port 213, and at the same time, liquid crystal is used. The liquid crystal is dropped into the sealant 205 by dropping the opening 212.
  • the first substrate 202 and the second substrate 203 include a plurality of spaced apart panel units, and the sealant 205 is disposed at the periphery of each panel unit.
  • the first substrate 202 and the second substrate 203 are disposed.
  • a plurality of liquid crystal display panels may be cut after the sealant 205 is cured. Therefore, the liquid crystal frame molding apparatus 210 can greatly reduce the molding time of the liquid crystal and the sealant, and improve the production efficiency of the panel.
  • the liquid crystal sealant molding apparatus of the present invention and the display panel assembly apparatus thereof can greatly improve the bubble problem of the liquid crystal and the quality of the sealant, and the liquid crystal sealant molding apparatus can rapidly form the liquid crystal and the sealant. Significantly reduce process time and panel handling time. Furthermore, the liquid crystal frame molding device of the present invention can simultaneously form a liquid crystal and a frame glue on the substrate without requiring two devices, thereby saving equipment costs.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Description

[根据细则37.2由ISA制定的发明名称]　液晶框胶成型装置及显示面板组装设备 技术领域
本发明涉及一种液晶显示技术领域，特别是涉及一种液晶框胶成型装置以及其应用的显示面板组装设备。
 背景技术
液晶显示器(Liquid Crystal Display，LCD)已被广泛应用于各种电子产品中，液晶显示器大部分为背光型液晶显示器，其是由液晶显示面板及背光模块(backlight module)所组成。
液晶显示面板是由两片透明基板以及被封于基板之间的液晶所构成。在液晶显示面板的组装制程中，液晶是被填充及密封于透明基板之间。目前，液晶填充于透明基板之间的现有方式为液晶注入方式(vacuum siphon method)及液晶滴下方式(one drop filling，ODF)，其中液晶滴下方式(ODF)较适合来应用于大尺寸面板。
以液晶滴下方式为例，在液晶滴下过程中，液晶是先通过喷嘴(Nozzle)来被滴在一玻璃基板上。接着，另一玻璃基板可对位并组合于此滴有液晶的玻璃基板上，因而形成液晶盒(Liquid Crystal Cell)于两玻璃基板之间，液晶盒是被一框胶来密封于两玻璃基板之间，其中框胶是利用框胶涂布机的喷嘴来进行涂布。接着，固化(curing)两玻璃基板之间的框胶，以形成液晶显示面板。
然而，一般的框胶涂布及液晶滴下需通过不同的机台来进行，且在框胶涂布的过程中，容易因喷嘴阻塞或压力异常而发生框胶宽度不均或断裂的情形。又，在液晶滴下过程中，容易因空气混入于液晶中，而发生漏滴或滴下量异常的问题。
故，有必要提供一种液晶框胶成型装置以及其应用的显示面板组装设备，以解决现有技术所存在的问题。
 技术问题
本发明提供一种液晶成型装置以及其应用的显示面板组装设备，以解决成型液晶及框胶的过程中所发生问题。
 技术解决方案
本发明的主要目的在于提供一种液晶框胶成型装置，用于在基板上涂布液晶和框胶，所述液晶框胶成型装置包括：
成型基板；
多个液晶滴下口，形成于所述成型基板的一侧，用于滴下所述液晶于所述基板上；以及
框胶涂布口，为形成于所述成型基板上的环形开槽，围绕所述液晶滴下口，用于接收和容置所述框胶，以及将所述框胶涂布于所述基板上。
本发明的另一目的在于提供一种显示面板组装设备，所述显示面板包括第一基板和第二基板，所述显示面板组装设备包括：
液晶框胶成型装置，包括：
成型基板；
多个液晶滴下口，形成于所述成型基板的一侧，用于滴下液晶于所述第一基板上；以及
框胶涂布口，为形成于所述成型基板上的环形开槽，围绕所述液晶滴下口的周围，用于接收和容置框胶，以及将所述框胶涂布于基板上；
对位组合装置，用于对位并组合所述第二基板于所述第一基板上，以形成显示面板；
搬送装置，用于从所述对位组合装置搬送所述显示面板；以及
固化装置，用于固化来自所述搬送装置的所述框胶。
在本发明的一实施例中，所述液晶框胶成型装置还包括对位传感器，设置在所述成型基板上，用于侦测所述成型基板是否准确地对位于所述基板的上方。
在本发明的一实施例中，所述多个液晶滴下口间隔设置，相邻的所述液晶滴下口之间具有一预设间距。
在本发明的一实施例中，所述框胶涂布口连接一框胶槽，所述框胶涂布口设置电磁阀开关，用于控制所述框胶槽内的框胶量。
在本发明的一实施例中，所述框胶涂布口连接气压装置，用于在气体的冲压下将已经预先注入于所述框胶涂布口内的框胶涂布于所述基板上。
在本发明的一实施例中，所述框胶涂布口的数量为二个，其同心圆式地环设于所述液晶滴下口的周围。
在本发明的一实施例中，所述液晶框胶成型装置还包括多个量筒，所述量筒设置在成型基板上，各量筒的一端连接一液晶槽，用于从所述液晶槽接收及容置液晶，各量筒的另一端连接所述液晶滴下口，用于当滴下液晶时，经由所述液晶滴下口将所述量筒中的液晶滴下于所述基板上。。
在本发明的一实施例中，所述量筒上设置液晶量控制器，用于侦测量筒内的液晶量，所述液晶量控制器上具有电磁阀，用于控制所述量筒的开闭以控制从所述液晶槽中进入所述量筒的液晶量。
在本发明的一实施例中，所述所述量筒连接气压装置，用于在气体的冲压下将液晶滴下于所述基板上。
相较于现有的液晶滴下及框胶涂布机所具有的问题，本发明的液晶框胶成型装置以及其应用的显示面板组装设备可改善液晶的气泡问题及框胶不均匀问题，且可大幅减少液晶及框胶的成型时间。再者，本发明的显示面板组装设备可利用一台设备来同时形成液晶及框胶于基板上，因而可节省设备成本。
 有益效果
本发明的液晶框胶成型装置以及其应用的显示面板组装设备可改善液晶的气泡问题及框胶不均匀问题，且可大幅减少液晶及框胶的成型时间。再者，本发明的显示面板组装设备可利用一台设备来同时形成液晶及框胶于基板上，因而可节省设备成本。
 附图说明
图1是本发明液晶框胶成型装置的第一实施例的示意图；
图2是本发明液晶框胶成型装置的第一实施例的部分剖面图；
图3是图1的液晶框胶成型装置制作的显示面板的剖面示意图；
图4是本发明液晶框胶成型装置的第一实施例的量筒、液晶滴下口及液晶槽的示意图；
图5是本发明液晶框胶成型装置的第一实施例的透视图；
图6是本发明显示面板组装设备的示意图；
图7是本发明液晶框胶成型装置的第二实施例的示意图；
图8是图7的液晶框胶成型装置制作的显示面板的示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
在图中，结构相似的单元是以相同标号表示。
请参照图1及图2，图1是本发明液晶框胶成型装置的第一实施例的示意图，图2是本发明液晶框胶成型装置的第一实施例的部分剖面图。本实施例的液晶框胶成型装置110可滴下液晶及涂布框胶105于第一基板102上，液晶框胶成型装置110包括成型基板111、多个量筒112、多个液晶滴下口113、至少一框胶涂布口114、至少一对位传感器115及液晶槽116。
请参照图3，其为图1的液晶框胶成型装置制作的显示面板的剖面示意图。此液晶显示面板101包括第一基板102、第二基板103、液晶层104及框胶105，液晶层104及框胶105是形成于第一基板102与第二基板103之间，框胶105包围并密封此液晶层104，以形成至少一液晶盒(liquid crystal cell)。在本实施例的图2及图3中示意第一基板102及第二基板103之间具有两个框胶105，不过，在第一基板102及第二基板103之间也可只包含一个或者设置更多框胶105。第一基板102和第二基板103的基板材料为玻璃基板或可挠性塑料基板，在本实施例中，第一基板102为具有彩色滤光片(Color Filter，CF)的玻璃基板或其它材质的基板，而第二基板103为具有薄膜晶体管矩阵(Thin Film Transistor，TFT)的玻璃基板或其它材质的基板。此框胶105是形成框状结构，以包围住液晶层104，框胶105为光硬化胶或热硬化胶，光硬化胶为紫外光硬化胶或可见光硬化胶(Visible Light Curing Glue) 。
请再参照图1、图2、图4及图5，图4是本发明液晶框胶成型装置的第一实施例的量筒、液晶滴下口及液晶槽的示意图，图5是本发明液晶框胶成型装置的第一实施例的透视图。成型基板111优选为平板状，且成型基板111的面积至少是大于框胶105所包围的面积。成型基板111优选是由透明材料所制成，例如玻璃，以有利于成型基板111与第一基板102之间的对位。量筒112连接于液晶滴下口113与液晶槽116之间，用于接收及容置液晶。在量筒112的通道入口处安装有液晶量控制器117，用于侦测量筒112内的液晶量，以及通过电磁阀控制量筒112的开闭以控制进入量筒112的液晶量。液晶滴下口113是间隔设置，其布设于成型基板111的一侧，并连接于一液晶槽116，用于滴下液晶于第一基板102上，其中每二相邻液晶滴下口113之间具有一预设间距，用于控制液晶层104的厚度及质量。框胶涂布口114为形成于所述成型基板111上的环形开槽113，并连接于一框胶槽118，用于接收和容置框胶，以及将框胶105于第一基板102上，其中通过改变框胶涂布口114的开口宽度及高度，可调整涂布后的框胶105的线宽及高度，且框胶涂布口114与框胶槽118之间通过电磁阀开关(图未示)来切换框胶的注入，电磁阀开关是用于控制所述框胶槽内的框胶量。对位传感器115例如为影像感测组件，例如电荷耦合器(Charge-coupled Device，CCD)或互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)，其可设置于成型基板111的角落处或边缘，用于侦测成型基板111是否准确地对位于第一基板102的上方。
在本实施例中，此至少一框胶涂布口114的数量为两个，其以类似于同心圆的方式来环设于液晶滴下口113的周围，这两个框胶涂布口114的形状类似于同心矩形，用于分别形成主框胶(main seal)和虚设框胶(dummy seal)。在另一实施例中，此至少一框胶涂布口114的数量亦可为一个，用于涂布一个框胶105。
在其它实施例中，液晶框胶成型装置110更可包括其它侦测器(图未示)，例如液晶填充侦测器、漏滴侦测器或框胶填充侦测器，用于侦测液晶在液晶滴下口113内的填充情形、液晶是否漏滴、或框胶在框胶涂布口114内的填充情形，因而可确保液晶层104及框胶105的形成质量。
当通过液晶框胶成型装置110来形成液晶层104及框胶105于第一基板102时，成型基板111利用一驱动装置来移动至第一基板102上方的适当高度，例如第一基板102上方的5mm处。接着，通过对位传感器115，成型基板111可准确地对位于第一基板102的上方。接着，当准备滴下液晶及涂布框胶时，成型基板111下降至一预设高度，以滴下液晶并涂布框胶。此时，成型基板111与第一基板102的间隙优选为0.5~2 mm。接着，液晶框胶成型装置110可同时或依序地滴下液晶并涂布框胶于第一基板102上。
当液晶框胶成型装置110滴下液晶及涂布框胶于第一基板102上时，液晶槽116内的液晶先通过泵119来抽取至各量筒112内，而框胶槽116内的框胶预先注入于框胶涂布口114内。接着，量筒112内的液晶可通过气压装置(图未示)，并在气体(如氮气)的冲压下经由液晶滴下口113来滴下于第一基板102上，以形成液晶层104于第一基板102。且框胶涂布口114内的框胶亦可通过气压装置(图未示)，并在气体(如氮气)的冲压下涂布于第一基板102上，以形成框胶105于第一基板102。
请参照图6，其为本发明显示面板组装设备的示意图。本实施例的显示面板组装设备100用于制造液晶显示面板101，显示面板组装设备100可包括液晶框胶成型装置110、对位组合装置120、搬送装置130及固化装置140。液晶框胶成型装置110是用于形成液晶层104及框胶105于第一基板102上。对位组合装置120可设置于液晶框胶成型装置110之后，用于对位并组合第二基板103于第一基板102上，而形成显示面板101。如图3所示，此对位组合装置120优选是在一真空环境中对位并组合第一基板102与第二基板103，以减少气泡等缺陷。例如，在本实施例中，对位组合装置120可位于一真空腔(Vacuum Box)内来进行第一基板102与第二基板103的对位组合。搬送装置130可设置于对位组合装置120与固化装置140之间，用于将显示面板101由对位组合装置120搬送至固化装置140。其中，搬送装置130可通过机械手臂、滚轮(Roller)组件或其它方式来搬送显示面板101。固化装置140是设置于对位组合装置120之后，用于完全固化框胶105。在本实施例中，固化装置140可利用光固化(light curing)方式或热固化(hot curing)方式来固化第一基板102与第二基板103之间的框胶105。此光固化方式例如可通过可见光(波长约380nm~780nm)或不可见光(如紫外光或红外光)来固化框胶105，此时，固化装置140为光照射机，用于照射光线于框胶105上，而达到光固化的效果。又，固化装置140可通过热压(Hot Pressure)等热固化方式来固化框胶105。
现有的液晶滴下设备是利用喷嘴来持续喷出液晶，因而气泡易混入于液晶中。因此，相较于现有的液晶滴下设备，由于本实施例的液晶框胶成型装置110的液晶滴下口113仅需进行一次液晶滴下步骤来同时滴下多滴液晶，而形成整个面板的液晶层104，因而可减少气泡混入的问题，且可大幅地减少液晶滴下制程的时间。又，由于框胶105是通过环设于液晶滴下口113周围的环状框胶涂布口114来涂布于第一基板102上，因而可在一次喷涂步骤中形成整个框胶105，而改善框胶宽度不均或断裂的情形，且亦可大幅地减少框胶涂布制程的时间。再者，由于液晶及框胶可同时利用液晶框胶成型装置110来形成于基板102上，因而可减少基板的搬运过程。
请参照图7和图8，图7是本发明液晶框胶成型装置的第二实施例的示意图，图8是图7的液晶框胶成型装置制作的显示面板的示意图。以下仅就本实施例与第一实施例间的相异处进行说明，而其相似处在此不再赘述。相较于第一实施例，第二实施例的液晶框胶成型装置210包括多个框胶涂布口213，其矩阵式地排列于成型基板211上，每一环状框胶涂布口213内设有多个液晶滴下口212。当通过液晶框胶成型装置210来形成液晶层204及框胶205于第一基板202时，利用框胶涂布口213来同时形成多个框胶205于第一基板202上，并同时利用液晶滴下口212来滴下液晶于框胶205内。此时，第一基板202及第二基板203之间包含多个间隔分布的面板单元，框胶205设置在各面板单元的外围，在第二实施例中，第一基板202及第二基板203可在框胶205固化后被切割出多个液晶显示面板。因此，液晶框胶成型装置210可大幅地减少液晶及框胶的成型时间，而提高面板的生产效率。
由上述可知，本发明的液晶框胶成型装置以及其应用的显示面板组装设备可大幅地改善液晶的气泡问题以及框胶的质量，且液晶框胶成型装置可迅速地形成液晶及框胶，而可大幅减少制程时间及面板搬运时间。再者，本发明的液晶框胶成型装置可同时形成液晶及框胶于基板上，而无需二台设备，因而可节省设备成本。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
 本发明的实施方式
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Claims (19)

  1. 一种液晶框胶成型装置，用于在基板上涂布液晶和框胶，其中所述液晶框胶成型装置包括：
    成型基板；
    多个液晶滴下口，形成于所述成型基板的一侧，用于滴下所述液晶于所述基板上；以及
    框胶涂布口，为形成于所述成型基板上的环形开槽，围绕所述液晶滴下口，用于接收和容置所述框胶，以及将所述框胶涂布于所述基板上；
    对位传感器，设置在所述成型基板上，用于侦测所述成型基板是否准确地对位于所述基板的上方；以及
    多个量筒，设置在成型基板上，每一所述量筒的一端连接液晶槽，用于从所述液晶槽接收及容置所述液晶，每一所述量筒的另一端连接所述液晶滴下口，用于当滴下所述液晶时，经由所述液晶滴下口将所述量筒中的所述液晶滴下于所述基板上。
  2. 一种液晶框胶成型装置，包括：
    成型基板；
    多个液晶滴下口，形成于所述成型基板的一侧，用于滴下所述液晶于所述基板上；以及
    框胶涂布口，为形成于所述成型基板上的环形开槽，围绕所述液晶滴下口，用于接收和容置所述框胶，以及将所述框胶涂布于所述基板上。
  3. 根据权利要求2所述的液晶框胶成型装置，其特征在于：还包括对位传感器，设置在所述成型基板上，用于侦测所述成型基板是否准确地对位于所述基板的上方。
  4. 根据权利要求2所述的液晶框胶成型装置，其中所述多个液晶滴下口间隔设置，每二相邻的所述液晶滴下口之间具有预设间距。
  5. 根据权利要求2所述的液晶框胶成型装置，其中所述框胶涂布口连接框胶槽，所述框胶涂布口设置电磁阀开关，用于控制所述框胶槽内的框胶量。
  6. 根据权利要求2所述的液晶框胶成型装置，其中所述框胶涂布口连接气压装置，用于在气体的冲压下将已经预先注入于所述框胶涂布口内的框胶涂布于所述基板上。
  7. 根据权利要求2所述的液晶框胶成型装置，其中所述框胶涂布口的数量为二个，其同心圆式地环设于所述液晶滴下口的周围。
  8. 根据权利要求2所述的液晶框胶成型装置，还包括多个量筒，设置在成型基板上，每一所述量筒的一端连接液晶槽，用于从所述液晶槽接收及容置所述液晶，每一所述量筒的另一端连接所述液晶滴下口，用于当滴下所述液晶时，经由所述液晶滴下口将所述量筒中的所述液晶滴下于所述基板上。
  9. 根据权利要求8所述的液晶框胶成型装置，其中所述量筒上设置液晶量控制器，用于侦测量筒内的液晶量，所述液晶量控制器上具有电磁阀，用于控制所述量筒的开闭以控制从所述液晶槽中进入所述量筒的液晶量。
  10. 根据权利要求8所述的液晶框胶成型装置，其中所述量筒连接气压装置，用于在气体的冲压下将液晶滴下于所述基板上。
  11. 一种显示面板组装设备，所述显示面板包括第一基板和第二基板，其中所述显示面板组装设备包括：
    液晶框胶成型装置，包括：
    成型基板；
    多个液晶滴下口，形成于所述成型基板的一侧，用于滴下液晶于所述第一基板上；以及
    框胶涂布口，为形成于所述成型基板上的环形开槽，围绕所述液晶滴下口的周围，用于接收和容置框胶，以及将所述框胶涂布于基板上；
    对位组合装置，用于对位并组合所述第二基板于所述第一基板上，以形成显示面板；
    搬送装置，用于从所述对位组合装置搬送所述显示面板；以及
    固化装置，用于固化来自所述搬送装置的所述框胶。
  12. 根据权利要求11所述的显示面板组装设备，还包括对位传感器，设置在所述成型基板上，用于侦测所述成型基板是否准确地对位于所述基板的上方。
  13. 根据权利要求11所述的显示面板组装设备，其中所述多个液晶滴下口间隔设置，每二相邻的所述液晶滴下口之间具有预设间距。
  14. 根据权利要求11所述的显示面板组装设备，其中所述框胶涂布口连接框胶槽，所述框胶涂布口设置电磁阀开关，用于控制所述框胶槽内的框胶量。
  15. 根据权利要求11所述的显示面板组装设备，其中所述框胶涂布口连接气压装置，用于在气体的冲压下将已经预先注入于所述框胶涂布口内的框胶涂布于所述基板上。
  16. 根据权利要求11所述的显示面板组装设备，其中所述框胶涂布口的数量为二个，其同心圆式地环设于所述液晶滴下口的周围。
  17. 根据权利要求11所述的显示面板组装设备，还包括多个量筒，设置在成型基板上，每一所述量筒的一端连接液晶槽，用于从所述液晶槽接收及容置所述液晶，每一所述量筒的另一端连接所述液晶滴下口，用于当滴下所述液晶时，经由所述液晶滴下口将所述量筒中的所述液晶滴下于所述基板上。
  18. 根据权利要求17所述的显示面板组装设备，其中所述量筒上设置液晶量控制器，用于侦测量筒内的液晶量，所述液晶量控制器上具有电磁阀，用于控制所述量筒的开闭以控制从所述液晶槽中进入所述量筒的液晶量。
  19. 根据权利要求17所述的显示面板组装设备，其中所述量筒连接气压装置，用于在气体的冲压下将液晶滴下于所述基板上。
PCT/CN2011/073341 2011-04-13 2011-04-26 液晶框胶成型装置及显示面板组装设备 Ceased WO2012139308A1 (zh)

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