TWI565529B - Nozzle for dispensing liquid crystal - Google Patents
Nozzle for dispensing liquid crystal Download PDFInfo
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- TWI565529B TWI565529B TW101121284A TW101121284A TWI565529B TW I565529 B TWI565529 B TW I565529B TW 101121284 A TW101121284 A TW 101121284A TW 101121284 A TW101121284 A TW 101121284A TW I565529 B TWI565529 B TW I565529B
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- liquid crystal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/035—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material to several spraying apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
- B05B12/04—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery for sequential operation or multiple outlets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
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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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Coating Apparatus (AREA)
Description
本發明係關於塗佈液晶用之噴嘴，其裝設於在製造液晶顯示器程序中將液晶塗佈到玻璃面板之液晶塗佈機。 The present invention relates to a nozzle for coating a liquid crystal, which is mounted on a liquid crystal coater that applies liquid crystal to a glass panel in a process of manufacturing a liquid crystal display.
液晶顯示器(LCD)為依據影像資訊個別供應資料訊號到陣列形狀配置之液晶單元，並控制液晶的透光率而顯示所欲影像的影像顯示裝置。 A liquid crystal display (LCD) is an image display device that individually supplies a data signal to an array shape according to image information, and controls the light transmittance of the liquid crystal to display a desired image.
液晶顯示器通常包含具有例如薄膜電晶體(TFTs)之驅動裝置的下玻璃面板、具有彩色濾光器的上玻璃面板以及填充在上玻璃面板與下玻璃面板間之空間而形成的液晶層。因此，液晶顯示器的製造包含在上玻璃面板及下玻璃面板之間形成液晶層的程序。液晶層形成方法的代表性實例為液晶塗佈方法。 The liquid crystal display generally includes a lower glass panel having driving means such as thin film transistors (TFTs), an upper glass panel having a color filter, and a liquid crystal layer formed by filling a space between the upper glass panel and the lower glass panel. Therefore, the manufacture of a liquid crystal display includes a process of forming a liquid crystal layer between an upper glass panel and a lower glass panel. A representative example of the liquid crystal layer forming method is a liquid crystal coating method.
液晶塗佈方法包含塗佈液晶到上玻璃面板或下玻璃面板上以及將兩個玻璃面板彼此接合而形成液晶層。當兩個玻璃面板彼此接合時，施加壓力到兩個玻璃面板使已塗佈到玻璃面板的液晶滴散佈開而覆蓋玻璃面板的整個區域，因而使填入兩個接合玻璃面板間的空間。當液晶滴散佈開時，相鄰的液晶滴可能彼此碰撞。若液晶並未均勻地散開，可能會造成定義為亮度或色彩缺陷的Mura現象，因而造成缺陷的液晶顯示器。為了避免發生Mura現象，較佳將預定量的液晶分成數個部分，而使塗佈到玻璃面板的液晶滴可配置成彼此靠近，因而縮減液晶滴之間的距離。換言之，必須能降低塗 佈到玻璃面板之液晶滴的孔隙性。 The liquid crystal coating method includes coating a liquid crystal onto an upper glass panel or a lower glass panel and bonding the two glass panels to each other to form a liquid crystal layer. When the two glass panels are joined to each other, applying pressure to the two glass panels spreads the liquid crystal droplets that have been applied to the glass panel to cover the entire area of the glass panel, thereby filling the space between the two bonded glass panels. When the liquid crystal droplets are spread, adjacent liquid crystal droplets may collide with each other. If the liquid crystal does not spread evenly, it may cause a Mura phenomenon defined as brightness or color defects, thus causing a defective liquid crystal display. In order to avoid the occurrence of the Mura phenomenon, it is preferred to divide the predetermined amount of liquid crystal into a plurality of portions, so that the liquid crystal droplets applied to the glass panel can be disposed close to each other, thereby reducing the distance between the liquid crystal droplets. In other words, it must be able to reduce the coating The porosity of the liquid crystal droplets that are clothed to the glass panel.
因此，本發明有鑒於先前技術所發生的問題，本發明之目的在於提供一種塗佈液晶用之噴嘴，其組態為降低塗佈在玻璃面板上的液晶滴的孔隙性。 Accordingly, the present invention has been made in view of the problems occurring in the prior art, and it is an object of the present invention to provide a nozzle for coating a liquid crystal which is configured to reduce the porosity of liquid crystal droplets coated on a glass panel.
為了達成上述目的，本發明提供一種塗佈液晶用之噴嘴，包含：讓液晶流入的流入通道；以及複數分支通道，與流入通道流體相通，該些分支通道將液晶分成數個液晶部分並塗佈該些液晶部分，其中從該些分支通道塗佈的該些液晶部分具有至少兩種尺寸。 In order to achieve the above object, the present invention provides a nozzle for coating a liquid crystal, comprising: an inflow passage through which a liquid crystal flows; and a plurality of branch passages in fluid communication with the inflow passage, the branch passages dividing the liquid crystal into a plurality of liquid crystal portions and coating The liquid crystal portions, wherein the liquid crystal portions coated from the branch channels have at least two sizes.
該些分支通道可包含至少兩種具有不同截面積的分支通道。 The branch channels may comprise at least two branch channels having different cross-sectional areas.
噴嘴可更包含複數噴嘴尖端，與個別分支通道相通。該些噴嘴尖端可包含至少兩種具有不同直徑的噴嘴尖端。 The nozzle can further include a plurality of nozzle tips that communicate with individual branch channels. The nozzle tips can include at least two nozzle tips having different diameters.
該些分支通道可包含至少三個分支通道，其中該些分支通道的出口可為線性排列。 The branch channels may include at least three branch channels, wherein the outlets of the branch channels may be linearly arranged.
該些分支通道可包含至少三個分支通道，其中該些分支通道的出口可設置在三角形的個別頂點。 The branch channels may include at least three branch channels, wherein the exits of the branch channels may be disposed at individual vertices of the triangle.
於後，將參考所附圖式詳細說明本發明較佳實施例。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
圖1為根據本發明實施例塗佈液晶用之噴嘴的透視圖。圖2為顯示圖1之塗佈噴嘴底部的透視圖。圖3為根據本發明實施例之塗佈噴嘴的***透視圖。圖4為沿圖3之A-A’線之截面圖。圖5為顯示根據本發明實施例從塗佈噴嘴塗佈之液晶滴的示意圖。圖6為顯示根據本發明實施例從塗佈噴嘴塗佈之液晶狀態的示意圖。 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a nozzle for coating a liquid crystal according to an embodiment of the present invention. Figure 2 is a perspective view showing the bottom of the coating nozzle of Figure 1. 3 is an exploded perspective view of a coating nozzle in accordance with an embodiment of the present invention. Figure 4 is a cross-sectional view taken along line A-A' of Figure 3. Figure 5 is a schematic view showing liquid crystal droplets coated from a coating nozzle in accordance with an embodiment of the present invention. Figure 6 is a schematic view showing a liquid crystal state applied from a coating nozzle according to an embodiment of the present invention.
參考圖1至圖4，根據本發明實施例塗佈液晶用之噴嘴(於後簡稱「噴嘴」)包含塊體單元10、流入通道30、複數分支通道40及複數噴嘴尖端50。液晶透過流入通道30流入塊體單元10。分支通道40與流入通道30流體相通且將液晶分成複數液晶部分，而獨立地塗佈液晶部分。噴嘴尖端50與個別分支通道40相通。 Referring to FIGS. 1 through 4, a nozzle for coating a liquid crystal (hereinafter simply referred to as "nozzle") according to an embodiment of the present invention includes a block unit 10, an inflow passage 30, a plurality of branch passages 40, and a plurality of nozzle tips 50. The liquid crystal flows into the block unit 10 through the inflow channel 30. The branch channel 40 is in fluid communication with the inflow channel 30 and separates the liquid crystal into a plurality of liquid crystal portions, and independently coats the liquid crystal portion. The nozzle tip 50 is in communication with the individual branch passages 40.
塊體單元10包含流入通道30形成於其中的第一塊體11以及分支通道40形成於其中的第二塊體12。第二塊體12的上表面與第一塊體11的下表面係為表面接觸。第一塊體11及第二塊體12藉由例如耦接螺栓之耦接裝置彼此耦接。 The block unit 10 includes a first block 11 in which the inflow channel 30 is formed and a second block 12 in which the branch channel 40 is formed. The upper surface of the second block 12 is in surface contact with the lower surface of the first block 11. The first block 11 and the second block 12 are coupled to each other by a coupling means such as a coupling bolt.
流入通道30形成在第一塊體11中。流入通道30藉由從第一塊體11的上表面穿透到下表面而形成。流入通道30的入口32形成在第一塊體11的上表面中，且其出口34形成在第一塊體11的下表面中。***凹槽形成在第一塊體11的上表面中，且液晶供應單元90***於***凹槽，而使液晶透過液晶供應單元90供應到流入通道30。從液晶供應單元90供應的液晶流過流入通道30。已從液晶供應單元90供應的液晶被吸入流入通道30的入口32且透過出口34排 出流入通道30。 The inflow passage 30 is formed in the first block 11. The inflow passage 30 is formed by penetrating from the upper surface of the first block 11 to the lower surface. An inlet 32 of the inflow passage 30 is formed in the upper surface of the first block 11, and an outlet 34 thereof is formed in the lower surface of the first block 11. The insertion groove is formed in the upper surface of the first block 11, and the liquid crystal supply unit 90 is inserted into the insertion groove, and the liquid crystal is supplied to the inflow channel 30 through the liquid crystal supply unit 90. The liquid crystal supplied from the liquid crystal supply unit 90 flows through the inflow channel 30. The liquid crystal that has been supplied from the liquid crystal supply unit 90 is sucked into the inlet 32 of the inflow passage 30 and is discharged through the outlet 34. Outflow into channel 30.
複數分支通道40形成在第二塊體12中。複數分支通道40包含至少兩個分支通道40，且與流入通道30流體相通。各分支通道40包含從流入通道30之出口34延伸的前端部42以及與前端部42相通的後端部44。分支通道40的前端部42形成在第二塊體12的上表面中並延伸於水平方向。分支通道40的後端部44形成在第二塊體12中並從第二塊體12的上表面垂直延伸至其下表面。 A plurality of branch channels 40 are formed in the second block 12. The plurality of branch channels 40 include at least two branch channels 40 and are in fluid communication with the inflow channels 30. Each branch passage 40 includes a front end portion 42 that extends from the outlet 34 of the inflow passage 30 and a rear end portion 44 that communicates with the front end portion 42. The front end portion 42 of the branch passage 40 is formed in the upper surface of the second block 12 and extends in the horizontal direction. The rear end portion 44 of the branch passage 40 is formed in the second block 12 and extends perpendicularly from the upper surface of the second block 12 to the lower surface thereof.
噴嘴尖端50提供在第二塊體12的下表面上。各噴嘴尖端50具有與對應分支通道40相通的流道52。 A nozzle tip 50 is provided on the lower surface of the second block 12. Each nozzle tip 50 has a flow passage 52 that communicates with a corresponding branch passage 40.
已透過入口32吸入流入通道30的液晶流出流入通道30的出口34，然後進入分支通道40的前端部42。於此，當液晶從流入通道30流入分支通道40時，液晶被分成複數液晶部分，而其份數對應於分支通道40的數目。各液晶部分沿著對應的分支通道40流動。已通過對應分支通道40的液晶部分透過對應的噴嘴尖端50從噴嘴滴出。分支通道40與流入通道30流體相通，但是具有獨立的流道。因此，被吸入流入通道30的液晶係由分支通道40分成複數液晶部分，然後這些液晶部分同時從噴嘴獨立地滴出。 The liquid crystal that has been sucked into the inflow passage 30 through the inlet 32 flows out of the outlet 34 of the inflow passage 30, and then enters the front end portion 42 of the branch passage 40. Here, when the liquid crystal flows into the branch passage 40 from the inflow passage 30, the liquid crystal is divided into a plurality of liquid crystal portions, and the number of copies corresponds to the number of the branch passages 40. Each liquid crystal portion flows along the corresponding branch passage 40. The liquid crystal portion that has passed through the corresponding branch passage 40 is dripped from the nozzle through the corresponding nozzle tip 50. The branch passage 40 is in fluid communication with the inflow passage 30 but has a separate flow passage. Therefore, the liquid crystal which is sucked into the inflow passage 30 is divided into a plurality of liquid crystal portions by the branch passage 40, and then these liquid crystal portions are simultaneously dropped from the nozzles independently.
流入通道30及分支通道40可分別藉由機械加工約具有立方體形狀的第一塊體11及第二塊體12而形成。在本實施例中，為了促進機械加工並加強機械加工的精準性，塊體單元10組態為可分開成第一塊體11及第二塊體12。再者，在本實施例中，雖然流入通道30及各分支通道40的後端部 44為垂直定向，且各分支通道40的前端部42為水平定向，但是流入通道30及分支通道40的形狀可改變成各種方式，而不限於本實施例所述。舉例而言，塊體單元10可為一體結構，且可組態為使流入通道30垂直定向，而分支通道40從流入通道30以預定角度延伸。換言之，垂直的流入通道30分支成傾斜的分支通道40。 The inflow channel 30 and the branch channel 40 can be formed by mechanically machining the first block 11 and the second block 12 having a cubic shape, respectively. In the present embodiment, in order to promote machining and enhance the precision of machining, the block unit 10 is configured to be separable into the first block 11 and the second block 12. Furthermore, in the present embodiment, although the inflow portion 30 and the rear end portion of each branch passage 40 are 44 is vertically oriented, and the front end portion 42 of each branch passage 40 is horizontally oriented, but the shape of the inflow passage 30 and the branch passage 40 can be changed into various manners, and is not limited to the embodiment. For example, the block unit 10 can be a unitary structure and can be configured to orient the inflow channel 30 vertically, while the branch channel 40 extends from the inflow channel 30 at a predetermined angle. In other words, the vertical inflow channel 30 branches into an inclined branch channel 40.
在根據本發明的噴嘴中，液晶從液晶供應單元90吸入到流入通道30並由分支通道40分成複數液晶部分，然後複數液晶部分同時個別地從噴嘴滴出。因此，從噴嘴滴出的各液晶滴的尺寸變得較小。再者，本發明主要特徵在於一次可從分支通道40滴出數滴的液晶，且在於具有至少兩種不同尺寸的液晶滴。如此一來，可從噴嘴塗佈具有不同尺寸的液晶滴到玻璃面板上，而可降低塗佈在玻璃面板上之液晶滴的孔隙性。 In the nozzle according to the present invention, liquid crystal is sucked from the liquid crystal supply unit 90 into the inflow passage 30 and divided into a plurality of liquid crystal portions by the branch passage 40, and then the plurality of liquid crystal portions are simultaneously individually dropped from the nozzle. Therefore, the size of each liquid crystal droplet dripped from the nozzle becomes small. Furthermore, the main feature of the present invention is that a few drops of liquid crystal can be dropped from the branch channel 40 at a time, and there are at least two different sizes of liquid crystal droplets. In this way, liquid crystal droplets having different sizes can be applied from the nozzle to the glass panel, and the porosity of the liquid crystal droplets coated on the glass panel can be reduced.
參考圖5，在本實施例中，一次塗佈到玻璃面板的液晶滴中，大的液晶滴72從設置在噴嘴1相對側的兩個分支通道的出口46a滴出，小於液晶滴72的液晶滴74係從設置在出口46a間之分支通道的出口46b滴出。再者，中間分支通道的出口46b設置在相對於液晶塗佈程序期間噴嘴1之移動方向上與相對側分支通道之出口46a相隔預定距離的位置。因此，如圖5所示，根據本實施例由噴嘴1所塗佈的液晶滴係設置成使設置在相對側的大液晶滴72與小液晶滴74在噴嘴1的移動方向上交替設置。藉此，塗佈在玻璃面板上的液晶滴形成各小液晶滴74處在複數大液晶滴72之中的圖案。如圖6所示，相較於複數大液晶滴之中為空白的狀況(參考圖6的(a)圖)，因為小液晶滴處於複數大液晶滴之中(參考 圖6的(b)圖)而可降低液晶滴的孔隙性。因此，可均勻地散佈液晶滴，而在將玻璃面板與另一玻璃面板結合時覆蓋玻璃面板的整個區域，因而降低Mura現象。 Referring to Fig. 5, in the present embodiment, one of the liquid crystal droplets applied to the glass panel is once applied, and large liquid crystal droplets 72 are dropped from the outlets 46a of the two branch passages provided on the opposite sides of the nozzle 1, which are smaller than the liquid crystal of the liquid crystal droplets 72. The drop 74 is dripped from the outlet 46b of the branch passage provided between the outlets 46a. Further, the outlet 46b of the intermediate branch passage is disposed at a position spaced apart from the outlet 46a of the opposite side branch passage by a predetermined distance with respect to the moving direction of the nozzle 1 during the liquid crystal coating process. Therefore, as shown in FIG. 5, the liquid crystal droplets coated by the nozzle 1 according to the present embodiment are disposed such that the large liquid crystal droplets 72 and the small liquid crystal droplets 74 disposed on the opposite sides are alternately disposed in the moving direction of the nozzle 1. Thereby, the liquid crystal droplets coated on the glass panel form a pattern in which the small liquid crystal droplets 74 are located in the plurality of large liquid crystal droplets 72. As shown in FIG. 6, compared with the case where the plurality of large liquid crystal droplets are blank (refer to FIG. 6(a)), since the small liquid crystal droplets are in the plural large liquid crystal droplets (refer to Fig. 6(b)) can reduce the porosity of the liquid crystal droplets. Therefore, the liquid crystal droplets can be uniformly dispersed, and the entire area of the glass panel is covered when the glass panel is combined with another glass panel, thereby lowering the Mura phenomenon.
如上所述，本發明組態成使噴嘴塗佈至少兩種不同尺寸的液晶滴，且各小液晶滴設置在複數大液晶滴之中，因而降低塗佈在玻璃面板上之液晶滴的孔隙性。 As described above, the present invention is configured to apply a nozzle to at least two different sizes of liquid crystal droplets, and each small liquid crystal droplet is disposed in a plurality of large liquid crystal droplets, thereby reducing the porosity of the liquid crystal droplets coated on the glass panel. .
於後，參考圖7及圖8，將說明使用嘴塗佈不同尺寸之液晶滴的方法。 Hereinafter, referring to FIG. 7 and FIG. 8, a method of coating liquid crystal droplets of different sizes using a nozzle will be described.
從分支通道之出口塗佈的液晶滴尺寸係正比於分支通道之流道的截面積。亦即，液晶從流入通道供應到分支通道並分成複數液晶部分時，流入各分支通道的液晶量正比於分支通道之流道的截面積。因此，從各分支通道塗佈的液晶滴尺寸係正比於分支通道之流道的截面積。參考圖7，進入分支通道40b(其流道截面積小於其他的分支通道40a)的液晶尺寸小於進入各分支通道40a之液晶的尺寸。最後，從各分支通道40a(其流道截面積較大)所塗佈的液晶尺寸係大於從流道截面積較小之分支通道40b所塗佈的液晶尺寸。 The size of the liquid crystal droplets coated from the outlet of the branch channel is proportional to the cross-sectional area of the flow channel of the branch channel. That is, when the liquid crystal is supplied from the inflow channel to the branch channel and is divided into a plurality of liquid crystal portions, the amount of liquid crystal flowing into each branch channel is proportional to the cross-sectional area of the flow channel of the branch channel. Therefore, the size of the liquid crystal droplets applied from each branch channel is proportional to the cross-sectional area of the flow channel of the branch channel. Referring to Fig. 7, the liquid crystal size entering the branch passage 40b (having a smaller flow path sectional area than the other branch passages 40a) is smaller than the size of the liquid crystal entering each branch passage 40a. Finally, the size of the liquid crystal applied from each branch channel 40a (which has a large flow path cross-sectional area) is larger than the liquid crystal size applied from the branch channel 40b having a smaller cross-sectional area of the flow path.
再者，若噴嘴尖端提供在各分支通道的出口，則從噴嘴尖端所塗佈的液晶滴尺寸正比於噴嘴尖端的內徑。以分支通道之流道截面積為相同而言，與各分支通道相通之噴嘴尖端的內徑越大，從噴嘴尖端所塗佈的液晶滴尺寸就越大。在圖8所示的實例中，雖然分支通道40a及40b的流道截面積相同，但是與分支通道40b相通之噴嘴尖端50b的內徑係小於其他與分支通道40a相通之噴嘴尖端50a的內徑。在此狀況 中，從內徑較小之噴嘴尖端50b所塗佈之液晶滴尺寸係小於從噴嘴尖端50a所塗佈的液晶滴尺寸。 Furthermore, if the nozzle tip is provided at the outlet of each branch channel, the size of the liquid crystal droplet applied from the nozzle tip is proportional to the inner diameter of the nozzle tip. In the same way, the cross-sectional area of the flow channel of the branch channel is the same, and the larger the inner diameter of the nozzle tip communicating with each branch channel, the larger the size of the liquid crystal droplet applied from the nozzle tip. In the example shown in Fig. 8, although the flow passage cross-sectional areas of the branch passages 40a and 40b are the same, the inner diameter of the nozzle tip 50b communicating with the branch passage 40b is smaller than the inner diameter of the other nozzle tip 50a communicating with the branch passage 40a. . In this situation The liquid crystal droplet size applied from the nozzle tip 50b having a smaller inner diameter is smaller than the liquid crystal droplet size applied from the nozzle tip 50a.
如此一來，藉由改變各分支通道的流道截面積，或者改變相應噴嘴尖端的內徑，或者改變分支通道的流道截面積以及噴嘴尖端的內徑兩者，可控制從分支通道所塗佈之液晶滴的尺寸。 In this way, by changing the flow channel cross-sectional area of each branch channel, or changing the inner diameter of the corresponding nozzle tip, or changing the flow channel cross-sectional area of the branch channel and the inner diameter of the nozzle tip, the coating from the branch channel can be controlled. The size of the liquid crystal droplets of the cloth.
再者，圖5所示之分支通道的出口46a及46b可在水平面配置成各種方式。舉例而言，如圖9a所示，至少三個分支通道可形成在單一噴嘴1a中，且塗佈較大液晶滴的分支通道的出口46c及塗佈較小液晶滴的分支通道的出口46d可直線設置，換言之為共線設置。在此狀況中，從噴嘴1a塗佈到玻璃面板80的液晶滴為共線設置。 Furthermore, the outlets 46a and 46b of the branch passages shown in Fig. 5 can be arranged in various ways in the horizontal plane. For example, as shown in FIG. 9a, at least three branch channels may be formed in a single nozzle 1a, and an outlet 46c of a branch channel that coats a larger liquid crystal droplet and an outlet 46d of a branch channel that coats a smaller liquid crystal droplet may be Straight line setting, in other words, collinear setting. In this case, the liquid crystal droplets applied from the nozzle 1a to the glass panel 80 are collinearly disposed.
如圖9b及圖9c所示，至少三個分支通道可形成在單一噴嘴1b中，且分支通道的出口46e及46f可為非共線設置。亦即，至少一分支通道的出口46f可設置成遠離其他分支通道之出口46e設置的直線，而使三個分支通道的出口46e及46f形成三角形的個別頂點。如此一來，若三個分支通道的出口46e及46f並非共線設置，則液晶滴可設置成遠離共線設置的其他液晶滴且在共線設置的其他液晶滴之間。因此，塗佈到玻璃面板80的液晶滴可形成鋸齒圖案，因而降低液晶滴的孔隙性。 As shown in Figures 9b and 9c, at least three branch channels may be formed in a single nozzle 1b, and the outlets 46e and 46f of the branch channels may be non-collinear. That is, the outlet 46f of at least one branch passage may be disposed away from the line provided by the outlet 46e of the other branch passages, and the outlets 46e and 46f of the three branch passages may form individual vertices of the triangle. In this way, if the outlets 46e and 46f of the three branch channels are not collinearly disposed, the liquid crystal droplets may be disposed away from other liquid crystal droplets disposed in the collinear line and between other liquid crystal droplets disposed in a collinear manner. Therefore, the liquid crystal droplets applied to the glass panel 80 can form a sawtooth pattern, thereby reducing the porosity of the liquid crystal droplets.
如上所述，在本發明實施例中，塗佈液晶用的噴嘴可塗佈至少兩種不同尺寸的液晶滴到玻璃面板上。因此，可降低塗佈到玻璃面板上之液晶滴的孔隙性，因而避免發生Mura 現象。 As described above, in the embodiment of the present invention, the nozzle for coating the liquid crystal can apply at least two different sizes of liquid crystal droplets onto the glass panel. Therefore, the porosity of the liquid crystal droplets applied to the glass panel can be reduced, thereby avoiding the occurrence of Mura phenomenon.
再者，在一實施例中，分支通道可組態成使至少一分支通道的出口在液晶塗佈程序期間相對於噴嘴移動方向上及/或在垂直於噴嘴移動方向之方向上係在水平面上相隔預定距離。再者，液晶滴的尺寸彼此不相同。因此，可進一步降低塗佈在玻璃面板上之液晶滴的孔隙性。 Furthermore, in an embodiment, the branch channel can be configured such that the outlet of the at least one branch channel is attached to the horizontal plane during the liquid crystal coating process with respect to the nozzle movement direction and/or in a direction perpendicular to the nozzle movement direction. A predetermined distance apart. Furthermore, the sizes of the liquid crystal droplets are different from each other. Therefore, the porosity of the liquid crystal droplets coated on the glass panel can be further reduced.
此外，在一實施例中，噴嘴組態成從一個分支通道之出口所塗佈的液晶滴尺寸小於與該分支通道相隔之其他分支通道各個的出口所塗佈的液晶滴尺寸。在此狀況中，小的液晶滴可設置在複數大的液晶滴之中，因此進一步降低液晶滴的孔隙性。 Further, in one embodiment, the nozzles are configured such that the size of the liquid crystal droplets applied from the outlet of one of the branch channels is smaller than the size of the liquid crystal droplets applied to the respective outlets of the other branch channels spaced apart from the branch channels. In this case, small liquid crystal droplets can be disposed in a plurality of large liquid crystal droplets, thereby further reducing the porosity of the liquid crystal droplets.
雖然為了說明目的已揭露本發明之較佳實施例，但是熟此技藝者應了解在不悖離如申請專利範圍所揭露之本發明精神及範疇下，可有各種修改、添加及替代。 Although the preferred embodiment of the invention has been disclosed for the purposes of illustration, it will be understood by those skilled in the art
1、1a、1b‧‧‧噴嘴 1, 1a, 1b‧‧‧ nozzle
10‧‧‧塊體單元 10‧‧‧Block unit
11‧‧‧第一塊體 11‧‧‧ first block
12‧‧‧第二塊體 12‧‧‧Second body
30‧‧‧流入通道 30‧‧‧Inflow channel
32‧‧‧入口 32‧‧‧ Entrance
34‧‧‧出口 34‧‧‧Export
40、40a、40b‧‧‧分支通道 40, 40a, 40b‧‧‧ branch channel
42‧‧‧前端部 42‧‧‧ front end
44‧‧‧後端部 44‧‧‧ Back end
46、46a、46b、46c、46d、46e、46f‧‧‧出口 46, 46a, 46b, 46c, 46d, 46e, 46f‧‧ exports
50、50a、50b‧‧‧噴嘴尖端 50, 50a, 50b‧‧‧ nozzle tip
52‧‧‧流道 52‧‧‧ flow path
72‧‧‧大液晶滴 72‧‧‧ Large LCD drops
74‧‧‧小液晶滴 74‧‧‧Small LCD drop
80‧‧‧玻璃面板 80‧‧‧glass panel
90‧‧‧液晶供應單元 90‧‧‧Liquid supply unit
本發明之上述及其他目的、特徵及優點結合伴隨圖式與詳細說明將更清楚了解，其中：圖1為根據本發明實施例塗佈液晶用之噴嘴的透視圖；圖2為顯示圖1之塗佈噴嘴底部的透視圖；圖3為根據本發明實施例之塗佈噴嘴的***透視圖；圖4為沿圖3之A-A’線之截面圖；圖5為顯示根據本發明實施例從塗佈噴嘴塗佈之液晶 滴的示意圖；圖6為顯示根據本發明實施例從塗佈噴嘴塗佈之液晶狀態的示意圖；圖7為塗佈噴嘴之截面示意圖，顯示分支通道的流道具有不同尺寸的截面積，以塗佈不同尺寸的液晶滴；圖8為塗佈噴嘴之截面示意圖，顯示噴嘴尖端具有不同直徑，以塗佈不同尺寸的液晶滴；以及圖9a至圖9c為根據本發明其他實施例塗佈液晶用之噴嘴的底視圖以及顯示從塗佈噴嘴所塗佈之液晶滴圖案的示意圖。 The above and other objects, features, and advantages of the present invention will become more apparent from the aspects of the accompanying drawings. FIG. 3 is an exploded perspective view of a coating nozzle according to an embodiment of the present invention; FIG. 4 is a cross-sectional view taken along line AA' of FIG. 3; and FIG. 5 is a view showing an embodiment according to the present invention. Liquid crystal coated from a coating nozzle FIG. 6 is a schematic view showing a liquid crystal state coated from a coating nozzle according to an embodiment of the present invention; FIG. 7 is a schematic cross-sectional view showing a coating nozzle, showing that the flow path of the branch passage has a cross-sectional area of a different size to be coated Figure 8 is a schematic cross-sectional view of the coating nozzle, showing nozzle tips having different diameters to coat liquid crystal droplets of different sizes; and Figures 9a to 9c for coating liquid crystal according to other embodiments of the present invention A bottom view of the nozzle and a schematic showing the pattern of liquid crystal droplets applied from the coating nozzle.
10‧‧‧塊體單元 10‧‧‧Block unit
11‧‧‧第一塊體 11‧‧‧ first block
12‧‧‧第二塊體 12‧‧‧Second body
34‧‧‧出口 34‧‧‧Export
42‧‧‧前端部 42‧‧‧ front end
44‧‧‧後端部 44‧‧‧ Back end
50‧‧‧噴嘴尖端 50‧‧‧Nozzle tip
90‧‧‧液晶供應單元 90‧‧‧Liquid supply unit
Claims (6)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120006129A KR20130085172A (en) | 2012-01-19 | 2012-01-19 | Dispensing nozzle for liquid crystal |
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| Publication Number | Publication Date |
|---|---|
| TW201330935A TW201330935A (en) | 2013-08-01 |
| TWI565529B true TWI565529B (en) | 2017-01-11 |
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| TW101121284A TWI565529B (en) | 2012-01-19 | 2012-06-14 | Nozzle for dispensing liquid crystal |
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| KR (1) | KR20130085172A (en) |
| CN (1) | CN103217837A (en) |
| TW (1) | TWI565529B (en) |
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| CN103506246B (en) * | 2013-10-21 | 2015-12-23 | 深圳市华星光电技术有限公司 | Frame enclosing gum coating apparatus |
| CN105785669A (en) * | 2016-05-19 | 2016-07-20 | 深圳市华星光电技术有限公司 | Liquid crystal coating device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200824799A (en) * | 2006-12-15 | 2008-06-16 | Univ Nat Taiwan | Micro-region coating device and method |
| CN102000652A (en) * | 2010-09-10 | 2011-04-06 | 深圳市华星光电技术有限公司 | Liquid crystal coating device and liquid crystal coating method |
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- 2012-01-19 KR KR1020120006129A patent/KR20130085172A/en active Search and Examination
- 2012-06-14 TW TW101121284A patent/TWI565529B/en not_active IP Right Cessation
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200824799A (en) * | 2006-12-15 | 2008-06-16 | Univ Nat Taiwan | Micro-region coating device and method |
| CN102000652A (en) * | 2010-09-10 | 2011-04-06 | 深圳市华星光电技术有限公司 | Liquid crystal coating device and liquid crystal coating method |
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| CN103217837A (en) | 2013-07-24 |
| KR20130085172A (en) | 2013-07-29 |
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