KR20190081429A - A slot die head for high-resolution - Google Patents

Abstract

The present invention discloses a slot die head for high resolution. The slot die head comprises: first side and second side main bodies which are plates having a right trapezoidal cross section, wherein the right side of the right trapezoidal shape being in contact with an upper portion and one side of a hypotenuse portion being in contact with a lower portion to form a head lip; a plurality of dual plates having a plurality of micro tips protruding from a lower side, and inserted between the first side and the second side main bodies so that the plurality of micro tip arrangement does not overlap; and a separator plate inserted between the plurality of dual plates and performing separation. In each of inner surfaces of the first and second side main bodies, a cavity filled with a coating liquid is formed in a longitudinal direction.

Description

[0002] A slot die head for high resolution (A slot die head for high-resolution)

The present invention relates to a slot die head, and more particularly, to a slot die head, in which a plurality of die heads having one dual plate are arranged while maintaining a predetermined distance between micro-tips of slot die, The present invention relates to a slot die head for high resolution which can prevent the cross-talk phenomenon between micro-tips and reduce the interval and line width between stripe coating films by increasing the number of stripe coating films.

In general, the slot-die coating technology can manufacture a large-size, high-uniform multilayer organic thin film, and has excellent roll-to-roll (R2R) expandability. Thus, the OLED display And it is expected to be widely used in the production of surface light source.

Here, an OLED refers to a self-luminescent device that uses a principle in which light is generated while electrons and holes are combined in an organic material layer when a current is supplied to a fluorescent or phosphorescent organic thin film.

At this time, the color of the light changes depending on the organic material constituting the light emitting layer.

The organic light-emitting diode is divided into a passive matrix organic light-emitting diode (PMOLED) and an active matrix organic light-emitting diode (AMOLED).

PMOLED is a line driving method in which one line emits light at a time, whereas AMOLED is an individual driving method in which light emitting elements are driven respectively.

Among them, AMOLED is a microsecond (s) unit with a video response rate of one millionth of a second.

This is 1000 times faster than the TFT LCD in milliseconds (milliseconds), which is one thousandth of a second, and resolves the afterimage of the video which is pointed out as a problem of TFT LCD.

In addition, since it is self-luminous, it does not need a backlight unit that shoots light from the back like TFT LCD, so it can reduce thickness and weight to one third of TFT LCD.

The allocated space can be allocated to increase the battery capacity.

Also, unlike TFT LCD, color reproducibility is the same at high temperature and low temperature, and since it is self-emission type, the contrast ratio does not depend on brightness (brightness) or viewing angle.

Therefore, the viewing angle problem is also solved because it is clearly visible without being invisible under bright illumination like a TFT LCD.

It has high-definition and high-resolution screen configuration and low power consumption. It is mainly used for products requiring small size and high quality like smart phone.

Overcoming the drawbacks of lower cost competitiveness due to higher manufacturing costs than TFT LCDs, WiBro and DMB are expected to gain a clear advantage in the mobile display market, which is expected to expand in demand for tablet PCs and TV panels.

Most current OLED displays are almost identical in that they use the AMOLED emission method, but they are also classified into several types depending on the arrangement of the devices.

The most widely used method is an RGB type OLED (RGB-OLED type) in which OLED elements of three primary colors (red, green, and blue) are arranged horizontally on a panel at regular intervals.

This is because OLED elements of three primary colors form one pixel (dot, pixel) with different colors.

The other is to construct a single pixel using OLED elements that emit white light (internally, vertically stacking three primary-color elements), then apply a color filter that transmits the three primary colors, OLED (hereinafter referred to as -W OLED) method.

RGB-OLED is more advantageous in terms of color reproducibility and brightness because it forms a screen without transmitting color filters.

On the other hand, W-OLED has advantages in that it can be mass-produced more stably (production yield).

For this reason, RGB-OLED is mainly used for small screen products such as smart phones, and W-OLED is mainly used for large screen products such as TVs.

In order to increase the production yield, the RGB-OLED method employs a PenTile technology in which one pixel shares an OLED element of some color with an adjacent pixel to implement color.

In the case of W-OLED, WRGB method of improving image quality by adding pixels of white color in addition to three primary colors is also being introduced, and attempts have been made to compensate for their respective shortcomings.

OLED is expected to replace the LCD in the future and become the mainstream of the next generation display market.

Currently, all of these OLED products are manufactured by expensive vacuum evaporation equipment.

According to one report, when manufacturing an AMOLED display panel by a solution process compared to a vacuum deposition method, it has been reported that the manufacturing cost can be reduced by about 40%.

Ubi Industrial Research estimates that AMOLED panels for solution process will reach 14 million units by 2020, reaching a market size of about $ 5 billion and will grow at a CAGR of 141% from 2018 to 2020 based on panel sales Respectively.

Major applications are expected to be tablet PC and TV panels, and the light emitting material market to be applied to the solution process is expected to reach about $ 260 million by 2020.

Solution process technology is divided into printing technology (inkjet, gravure, offset, nozzle, etc.) and coating technology (slot die, blade, spray, spin, etc.). Inkjet printing of printing technology is simple process, Research is being conducted to apply it to the manufacture of OLED displays with high resolution.

However, in OLED displays, not only the difficulty of adjusting the uniformity of printing per pixel, but also the delay in applying to the panel production due to the difficulty of forming a continuous pattern and the slow coating speed are being delayed.

On the other hand, the coating technique is mainly applied to formation of a display common layer.

Among them, slot die coating technology enables thin film coating with tens of nanometers, continuous coating according to R2R expansion, and coating from low viscosity to high viscosity ink.

Patterning technology is required to utilize the slot coating technology for manufacturing OLED display light emitting layer and color filter (CF).

Patterning in the coating direction is possible by applying a negative pressure to the head lip portion.

Patterning to the vertical side of the coating direction is possible by stripe coating by machining the shim.

However, this method is difficult to apply because it is difficult to process into a fine pattern of pixel or color filter width.

On the other hand, in many cases, a material layer forming composition is applied in order to laminate other material layers on one material layer. The coating liquid is used by dissolving the material layer forming composition in a solvent or a dispersion medium to form a fluid form such as a solution or slurry .

A die coater is a typical equipment for applying a coating liquid relatively thinly over a large area, and a slot die is a device for forming a material layer by applying a coating liquid to a substrate in a predetermined width.

The slot die has a structure in which the coating liquid is discharged through the gap between the two ends of the slot die as the ink flows from the fountain pen to the tip of the pen tip.

In order to apply the coating liquid onto the substrate using the slot die, the slot die itself moves or the substrate moves.

The coating method using a slot die is superior to other coating methods in terms of productivity and reproducibility and has been widely used in flat panel display and secondary battery fields up to now and is widely used for coating functional surface treatment films in display fields.

1 is a perspective view of a conventional slot die.

2 is a plan view of a conventional slot die device.

1 and 2, the slot die is formed in a longitudinal direction in one or both of the interior of the slot die body as a region where the slot die bodies 1, 2, and 3 and the coating liquid flow into the head without bubbles, A coating liquid supply line 15 for injecting the coating liquid into the cavity, and a slot portion 13 connected to the cavity 12 for applying the coating liquid to the substrate.

On the other hand, the slot die bodies 1, 2 and 3 are made of a die-shim type consisting of a first side body 1, a second side body 2 and a shim 3 for holding a slit gap, Shimless type in which a die shim 3 is incorporated in either the first side body 1 or the second side body 2. [

In the case of the dicom type, the die seam 3 between the first side body 1 and the second side body 2 is interchanged so that the thickness of the slit gap and the thickness of the discharge port (14).

The coating liquid supply line 15 is connected to the center of the cavity 12 and used as a passage for supplying the coating liquid.

Then, the coating liquid injected into the coating liquid inlet 11 is injected into the cavity 12 through the coating liquid supply line 15.

The cavity 12 is connected to the coating liquid supply line 15 and is filled with the coating liquid injected from the coating liquid supply line 15.

The coating liquid thus filled is discharged to the discharge port 14 through the thin slot portion 13, and the discharged coating liquid is applied onto the substrate.

That is, the slot portion 13 serves as a passage when the coating liquid supplied to the cavity is applied to the substrate through the discharge port 14. [

The coating by the slot die apparatus is divided into the form in which the slot die apparatus is fixed and the substrate is moved, or the slot die apparatus is moved and the substrate is fixed.

However, the slot die coating technology is fundamentally problematic due to the difficulties of pixel coating, low resolution due to the cross-web direction, i.e., the patterning limit in the vertical direction of the coating direction (direction parallel to the head) There has been no attempt to apply it to the formation of display light emission pixels.

In order to overcome the pixelation and patterning difficulties of existing slot die coatings and develop slot coating process techniques comparable to inkjet printing, slot die heads dedicated to pixel coatings are needed.

FIG. 3 is an exploded perspective view of a slot die head for high resolution according to the prior art in which a first side body 100, a second side body 200, a dual plate, that is, a back plate 300 and a shim plate 400, Respectively.

Fig. 4 is a front view of the shim plate a and the back plate b in the slot die head shown in Fig. 3;

FIG. 5 is a diagram illustrating an RGB stripe arrangement used in a general large flat panel TV production.

FIG. 6 is a photograph of a semiconductor high concentration conductive polymer (PEDOT: PSS) stripe actually performing slot coating on a polyester film using the head equipped with the dual plate shown in FIG.

The components and functions of the slot die head for high resolution according to the related art will be described with reference to FIGS. 3 and 4. FIG.

As shown in FIG. 3, the first side body 100 and the second side body 200 of the slot die head for high resolution according to the related art are plates whose cross section is a right-angled trapezoidal shape, One side of the hypotenuse contacts the bottom.

A back plate 300 having a pixel width wide micro tip formed on the inner surface of the first side body 100 or the second side body 200 and a comb- And a shim plate 400 that has been processed.

That is, a head having a dual plate is required, and a meniscus, which is a curve produced by the coating liquid discharged from the slot die head lip, is formed at the microtip.

As shown in FIG. 3, when a pixel coated with a head having a dual plate is mounted, it is possible to manufacture a panel having an RGB stripe arrangement mainly used in a large TV as shown in FIG.

Since the head with dual plates injects only one of the RGB coating liquid into the head, the stripes of one of the RGB stripes (R, G, or B) are directed in the cross-web direction, Parallel to the longitudinal direction).

In this way, when a head with dual-tipped heads with a tip width of 250 m, a tip spacing of 6 mm, and an effective coating width of 150 mm is subjected to pixel coating on a polyester (PET) film using 25 microtips As shown in Fig. 6, semiconductor high concentration conductive polymer (PEDOT: PSS) stripes can be produced.

However, for a high-resolution pixel coating, the spacing between the microtips must be reduced.

For example, in the case of a head equipped with a dual plate for red stripe coating, the spacing between the micro-tips of the back plate should be reduced since the spacing between red and red stripes is narrow (less than 1 mm for practical large TVs).

However, when the gap between the micro-tips is narrowed, crosstalk occurs, which is a phenomenon that the coating liquids come into contact with each other without being separated, and uniform striped coating becomes impossible.

That is, there are problems that the coating liquids between the microtips are aggregated to form one stripe coating film on a plurality of microtips or an unstable stripe coating on each microtip.

In addition, in the conventional die head, the cavity in which the coating liquid is stored in the dual plate should exist only in the die on the left die head or the right die head, i.e., the die head abutting the shim plate.

In order to overcome these problems, it is necessary to dispose a plurality of die heads having two dual plates in two or more rows while maintaining a certain distance between the microtips.

Alternatively, a new high resolution pixel coating dedicated head with a single cavity in the left and right heads and a high-resolution stripe coating in one head, modifying the head placement or head self-assembly without having to place more than two rows of heads need.

US 9016235 B2

SUMMARY OF THE INVENTION It is an object of the present invention to provide a slot die head for high resolution in which a plurality of die heads having one dual plate are arranged while maintaining a certain distance between micro-tips of slot die used in manufacturing an AMOLED display panel.

Another object of the present invention is to provide a high-resolution striped coating capable of modifying the head installation or the head structure itself by increasing the number of stripe coating films by one head without arranging a plurality of heads of the slot die used in manufacturing AMOLED display panels Resolution slot die head.

In order to achieve the above object, a slot die head for high resolution of the present invention is a plate whose cross section is a right-angled trapezoidal shape, wherein a right-angled portion of a right-angled trapezoid is in contact with an upper portion, 1 side and a second side body; And a dual plate having a plurality of micro-tips protruding from a lower side thereof, the dual plate being inserted between the first side and the second side body such that the plurality of micro- And a head fixing part having a plurality of die heads in contact with a side surface or an upper surface of the plurality of die heads to align and couple the plurality of die heads in a plurality of rows.

In order to achieve the above object, a slot die head for high resolution of the present invention is a plate whose cross section is a right-angled trapezoidal shape, wherein a right-angled portion of a right-angled trapezoid is in contact with an upper portion, 1 side and a second side body; And a plurality of micro-tips spaced apart from each other by a predetermined distance and spaced apart from each other by a predetermined distance on the lower side, and inserted between the first side and the second side body to move the coating liquid in the head lip direction through the plurality of micro- And a plurality of die heads, wherein the plurality of die heads are mounted to be inclined at an acute angle to the coating direction so as not to overlap the stripe coatings generated through the plurality of micro-tips do.

According to another aspect of the present invention, there is provided a slot die head for high resolution, the plate having a rectangular cross section in a cross section, wherein a right angle portion of a right-angled trapezoid is in contact with the upper portion, A first side and a second side body; A plurality of dual plates having a plurality of micro-tips protruding from a lower side, the plurality of micro-tips being inserted between the first side and the second side body such that the plurality of micro-tip arrangements do not overlap; And a separation plate inserted and separated between the plurality of dual plates, wherein a cavity filled with a coating liquid is formed in each of inner surfaces of the first and second side bodies in a longitudinal direction.

According to another aspect of the present invention, there is provided a slot die head for high resolution, the plate having a rectangular cross section in a cross section, wherein a right angle portion of a right-angled trapezoid is in contact with the upper portion, A first side and a second side body; A plurality of stepped patterns, each of which has a plurality of rectangular stepped patterns formed on the lower side and which are staggered with each other, and which is inserted between the first and second side bodies to discharge the coating liquid through the plurality of stepped patterns toward the head lip, ; And a plurality of micro-tips protruding from the lower side surface at positions corresponding to the positions of the plurality of stepped patterns, and a separating wall inserted and separated between the plurality of the seam plates, Each of the inner surfaces of the body is provided with a cavity in which the coating liquid is filled in the longitudinal direction, and the coating liquid is distributed in the width direction.

According to another aspect of the present invention, there is provided a slot die head for high resolution, the plate having a rectangular cross section in a cross section, wherein a right angle portion of a right-angled trapezoid is in contact with the upper portion, A first side and a second side body; A plurality of pairs of dual plates each having a plurality of micro-tips protruding from a lower side thereof and inserted between the first side and the second side body such that the plurality of micro-tip arrangements do not overlap each other; A separation plate inserted and separated between the plurality of dual plates in each pair of the pairs of dual plates; And an intermediate head which is formed in a longitudinal direction and in which a cavity filled with a coating liquid is inserted in the center of the plurality of pairs of dual plates and distributes the coating liquid to adjacent dual plates of the plurality of dual plates, Wherein the first and second side bodies, the plurality of pairs of the dual plates, the separation plate, and the intermediate head are screwed to each other in the longitudinal direction, .

Specific details of other embodiments are included in the " Detailed Description of the Invention "and the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention and the manner of achieving them will be apparent by reference to various embodiments described in detail below with reference to the accompanying drawings.

However, the present invention is not limited to the configurations of the embodiments described below, but may be embodied in various other forms, and each embodiment disclosed in this specification is intended to be illustrative only, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

According to the present invention, the coating liquid can be separated from each other even if the distance between the micro-tips is reduced for high resolution pixel coating, thereby preventing the crosstalk phenomenon.

Particularly, in the third embodiment, the interval between the stripe coating films is reduced through the change of the die head installation angle without decreasing the gap between the microtips, thereby increasing the density and decreasing the line width of the stripe coating film, thereby enabling high resolution stripe coating.

In the fourth to sixth embodiments, a plurality of die heads are unnecessary, and the initial cost and the trouble of maintenance are saved, thereby improving productivity and convenience of the product.

1 is a perspective view of a conventional slot die.
2 is a plan view of a conventional slot die device.
3 is an exploded perspective view of a slot die head for high resolution according to the prior art.
Fig. 4 is a front view of the shim plate a and the back plate b in the slot die head shown in Fig. 3;
FIG. 5 is a diagram illustrating an RGB stripe arrangement used in a general large flat panel TV production.
FIG. 6 is a photograph of a semiconductor high concentration conductive polymer (PEDOT: PSS) stripe actually performing slot coating on a polyester film using the head equipped with the dual plate shown in FIG.
FIG. 7 is a perspective view of a slot die head for high resolution manufactured according to the first embodiment of the present invention, in an upward direction (a) and a downward direction (b).
8 shows the back plate and shim plate (a) of the first head, the back plate and shim plate (b) of the second head and the back plate and shim plate (c) of the third head in the slot die head shown in Fig. FIG.
9 is a perspective view of a slot die head for high resolution manufactured according to the second embodiment of the present invention, as viewed in the upward direction (a) and the downward direction (b).
Fig. 10 is a side view showing the back plate and the shim plate (a) of the first head, the back plate and the shim plate (b) of the second head and the back plate and the shim plate (c) of the third head in the slot die head shown in Fig. FIG.
11 is a perspective view of a slot die head for high resolution mounted obliquely inclined according to a third embodiment of the present invention, performing strip coating.
12 is an exploded perspective view of a slot die head for high resolution manufactured according to the fourth embodiment of the present invention.
13 is a perspective view of the slot die head shown in Fig. 12 assembled.
Fig. 14 is a front view of the left back plate and the shim plate (a) and the right back plate and shim plate (b) in the slot die head shown in Fig. 12;
15 is an exploded perspective view of a slot die head for high resolution manufactured according to the fifth embodiment of the present invention.
16 is a perspective view of the slot die head shown in Fig. 15 assembled.
Fig. 17 is a perspective view (a) of the separating wall and a perspective view (b) of the separating wall viewed from the right side of the separating wall in the slot die head shown in Fig. 15;
18 is an exploded perspective view of a slot die head for high resolution manufactured according to the sixth embodiment of the present invention.
Fig. 19 is a perspective view of the slot die head shown in Fig. 18 assembled. Fig.
20 shows a first back plate and a first back plate, a second back plate and a second back plate, a third back plate and a third back plate in the slot die head shown in Fig. 18, , The fourth back plate, and the fourth shim plate (d).
Fig. 21 is a perspective view of the slot die head shown in Fig. 18 assembled with screws. Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention in detail, terms and words used herein should not be construed as being unconditionally limited in a conventional or dictionary sense, and the inventor of the present invention should not be interpreted in the best way It is to be understood that the concepts of various terms can be properly defined and used, and further, these terms and words should be interpreted in terms of meaning and concept consistent with the technical idea of the present invention.

That is, the terms used herein are used only to describe preferred embodiments of the present invention, and are not intended to specifically limit the contents of the present invention, It should be noted that this is a defined term.

Also, in this specification, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise, and it should be understood that they may include singular do.

Where an element is referred to as "comprising" another element throughout this specification, the term " comprises " does not exclude any other element, It can mean that you can do it.

Further, when it is stated that an element is "inside or connected to" another element, the element may be directly connected to or in contact with the other element, A third component or means for fixing or connecting the component to another component may be present when the component is spaced apart from the first component by a predetermined distance, It should be noted that the description of the components or means of 3 may be omitted.

On the other hand, it should be understood that there is no third component or means when an element is described as being "directly connected" or "directly connected" to another element.

Likewise, other expressions that describe the relationship between the components, such as "between" and "immediately", or "neighboring to" and "directly adjacent to" .

In this specification, terms such as "one side", "other side", "one side", "other side", "first", "second" Is used to clearly distinguish one element from another element, and it should be understood that the meaning of the element is not limited by such term.

It is also to be understood that terms related to positions such as "top", "bottom", "left", "right" in this specification are used to indicate relative positions in the drawing, Unless an absolute position is specified for these positions, it should not be understood that these position-related terms refer to absolute positions.

Furthermore, in the specification of the present invention, the terms "part", "unit", "module", "device" and the like mean a unit capable of handling one or more functions or operations, Or software, or a combination of hardware and software.

In this specification, the same reference numerals are used for the respective components of the drawings to denote the same reference numerals even though they are shown in different drawings, that is, the same reference numerals throughout the specification The symbols indicate the same components.

In the drawings attached to the present specification, the size, position, coupling relationship, and the like of each constituent element of the present invention may be partially or exaggerated or omitted or omitted for the sake of clarity of description of the present invention or for convenience of explanation May be described, and therefore the proportion or scale may not be rigorous.

Further, in the following description of the present invention, a detailed description of a configuration that is considered to be unnecessarily blurring the gist of the present invention, for example, a known technology including the prior art may be omitted.

In the first and second embodiments

FIG. 7 is a perspective view of a slot die head for high resolution manufactured according to the first embodiment of the present invention, in an upward direction (a) and a downward direction (b).

8 shows the back plate and shim plate (a) of the first head, the back plate and shim plate (b) of the second head and the back plate and shim plate (c) of the third head in the slot die head shown in Fig. FIG.

9 is a perspective view of a slot die head for high resolution manufactured according to the second embodiment of the present invention, as viewed in the upward direction (a) and the downward direction (b).

Fig. 10 is a side view showing the back plate and the shim plate (a) of the first head, the back plate and the shim plate (b) of the second head and the back plate and the shim plate (c) of the third head in the slot die head shown in Fig. FIG.

The structure and function of the slot die head for high resolution according to the first and second embodiments of the present invention will now be described with reference to FIGS. 7 to 10. FIG.

The first and second embodiments of the present invention have a plurality of die heads and a head fixing part which is brought into contact with a side surface or an upper surface of the plurality of die heads to align and bond a plurality of die heads in a plurality of rows.

Each of the plurality of die heads includes a first side and a second side body and a dual plate.

The first side body and the second side body are plates having a right-angled trapezoidal cross-section, wherein a right-angled portion of a right-angled trapezoid is in contact with the upper portion, and one side of the diagonal portion is in contact with the lower portion to form a head lip.

The dual plate has a plurality of micro-tips protruding from the lower side, and is inserted between the first side and the second side body in such a manner that the plurality of micro-tip arrangements do not overlap each other.

7 and 8, in the first embodiment of the present invention, three rows of heads are aligned so as to be aligned with each other, and a plurality of micro-tips By attaching the dual plates of the head, the number of stripe coating films can be increased.

9 and 10, the second embodiment of the present invention achieves the same effect as the first embodiment by misaligning the arrangement of the heads having the dual plates having the same micro-tip arrangement have.

However, since the first and second embodiments of the present invention inevitably require a large number of heads, the initial cost is increased, and maintenance and maintenance such as cleaning work are troublesome.

Third Embodiment

11 is a perspective view of a slot die head for high resolution mounted obliquely inclined according to a third embodiment of the present invention, performing strip coating.

The structure and function of the slot die head for high resolution according to the third embodiment of the present invention will be described with reference to FIG.

Each of the plurality of die heads includes a first side and a second side body and a dual plate.

The first side body and the second side body are plates having a right-angled trapezoidal cross-section, wherein a right-angled portion of a right-angled trapezoid is in contact with the upper portion, and one side of the diagonal portion is in contact with the lower portion to form a head lip.

The dual plate has a plurality of micro-tips spaced apart from each other by a predetermined distance on the lower side and protruding by a predetermined length. The dual plate is inserted between the first side and the second side body to discharge the coating liquid through the plurality of micro- .

The plurality of die heads are tilted and mounted at an acute angle with the coating direction so that the stripe coating produced through the plurality of microtips is not overlapped.

In other words, as shown in Fig. 11, the third embodiment of the present invention is a rotary mounting head mounted diagonally at a predetermined angle from a longitudinal parallel axis of a die head, which is mounted parallel to the longitudinal parallel axis of the die head It is compared with the normal mounting head.

That is, it is arranged at an acute angle less than 90 degrees, as shown in FIG. 11, without being arranged in the web direction, that is, perpendicular to the coating direction.

This reduces the gap between the striped coatings without decreasing the gap between the microtips, thereby increasing the density.

In addition, since the micro-tip is located at an angle, it has another advantage that the line width of the stripe coating film is reduced.

Therefore, the third embodiment of the present invention is arranged such that the heads having the different dual plates are arranged in three rows so as to be aligned with each other as in the first embodiment, or the arrangement of the heads having the same dual plates as in the second embodiment are arranged differently resolution stripe coating is possible by changing the head mounting angle without misaligning the head.

Fourth Embodiment

12 is an exploded perspective view of a slot die head for high resolution manufactured according to the fourth embodiment of the present invention.

13 is a perspective view of the slot die head shown in Fig. 12 assembled.

Fig. 14 is a front view of the left back plate and the shim plate (a) and the right back plate and shim plate (b) in the slot die head shown in Fig. 12;

The structure and function of the slot die head for high resolution according to the fourth embodiment of the present invention will be described with reference to FIGS. 12 to 14. FIG.

A fourth embodiment of the present invention includes a first side and a second side body, a plurality of dual plates, and a separation plate.

The first side body and the second side body are plates having a right-angled trapezoidal cross-section, wherein a right-angled portion of a right-angled trapezoid is in contact with the upper portion, and one side of the diagonal portion is in contact with the lower portion to form a head lip.

The dual plate has a plurality of micro-tips protruding from the lower side, and is inserted between the first side and the second side body in such a manner that the plurality of micro-tip arrangements do not overlap each other.

The separator is inserted between the plurality of dual plates to separate the plurality of dual plates.

On the inner surfaces of the first and second side bodies, cavities filled with the coating liquid are formed in the longitudinal direction.

In the conventional die head, the cavity in which the coating liquid is stored in the dual plate must exist only in the first side body or the second side body, i.e., the body contacting the shim plate.

However, as shown in FIG. 12, the fourth embodiment of the present invention has one cavity in each of the first and second side bodies, and two dual plates are separately installed by a separator.

That is, the left shim plate is first brought into contact with the left head having the cavity, and then the back plate having the micro-tip is mounted.

The right head is mounted in the same way and the two dual plates are separated by a separator.

Also, as shown in FIG. 14, the micro-tips of the left and right back plates are staggered from each other, thereby increasing the resolution of the coating stripes.

For example, the number of red stripes in one head is doubled by two dual plates.

The number of solution injection ports of one assembled head is two, and it is possible to supply the coating solution with one pump (not shown) or the same solution to the left and right cavities with two pumps, respectively.

Therefore, the fourth embodiment of the present invention enables high-resolution stripe coating with one head without arranging a plurality of heads in two or more rows as in the prior art shown in Figs.

Fifth Embodiment

15 is an exploded perspective view of a slot die head for high resolution manufactured according to the fifth embodiment of the present invention.

16 is a perspective view of the slot die head shown in Fig. 15 assembled.

Fig. 17 is a perspective view (a) of the separating wall and a perspective view (b) of the separating wall viewed from the right side of the separating wall in the slot die head shown in Fig. 15;

The structure and function of the slot die head for high resolution according to the fifth embodiment of the present invention will be described with reference to FIGS. 15 to 17. FIG.

As shown in FIG. 12, five plates mounted in the slot die head for high resolution according to the fourth embodiment of the present invention are assembled by an align key, so that even if there is no error in the assembling process In the fifth embodiment of the present invention, a method of reducing the number of plates is applied for easier use and management.

That is, as shown in Figs. 15 and 16, the fifth embodiment of the present invention replaces the portion corresponding to the left and right back plates of the fourth embodiment of the present invention by a thick partition wall.

As shown in FIG. 17, the left and right micro-tips may be staggered by using processing equipment in the thick separating wall.

A fifth embodiment of the present invention comprises a first side and a second side body, a plurality of shim plates, and a separating wall.

The first side body and the second side body are plates having a right-angled trapezoidal cross-section, wherein a right-angled portion of a right-angled trapezoid is in contact with the upper portion, and one side of the diagonal portion is in contact with the lower portion to form a head lip.

The plurality of shim plates have a plurality of rectangular stepped patterns formed on the lower side and staggered from each other. The plurality of shim plates are inserted between the first and second side bodies to discharge the coating liquid in the head lips direction through the plurality of stepped patterns.

The separating wall has a plurality of micro-tips protruding at positions corresponding to positions of the plurality of stepped patterns on the lower side, and is inserted between the plurality of the seam plates to separate the plurality of seam plates.

Cavities filled with the coating liquid are formed in the longitudinal direction on the inner surfaces of the first and second side bodies, and the coating liquid is distributed in the width direction.

The thickness of the separating wall should be at least 2 mm thick so that the coating liquid between the left and right microtips will not come into contact with each other and cause a crosstalk phenomenon.

Therefore, according to the fifth embodiment of the present invention, high-resolution stripe coating can be performed by one head without disposing a plurality of heads in two or more rows as in the prior art shown in FIGS.

Sixth Embodiment

18 is an exploded perspective view of a slot die head for high resolution manufactured according to the sixth embodiment of the present invention.

Fig. 19 is a perspective view of the slot die head shown in Fig. 18 assembled. Fig.

20 shows a first back plate and a first back plate, a second back plate and a second back plate, a third back plate and a third back plate in the slot die head shown in Fig. 18, , The fourth back plate, and the fourth shim plate (d).

Fig. 21 is a perspective view of the slot die head shown in Fig. 18 assembled with screws. Fig.

The structure and function of the slot die head for high resolution according to the sixth embodiment of the present invention will be described with reference to FIGS. 18 to 21 as follows.

A sixth embodiment of the present invention includes a first side and a second side body, a plurality of pairs of dual plates, a separating plate and an intermediate head, and each pair of the plurality of pairs of dual plates includes a plurality of the shim plates.

The first side body and the second side body are plates having a right-angled trapezoidal cross-section, wherein a right-angled portion of a right-angled trapezoid is in contact with the upper portion, and one side of the diagonal portion is in contact with the lower portion to form a head lip.

The plurality of pairs of dual plates has a plurality of micro-tips protruding from the lower side, and is inserted between the first side and the second side body by making a plurality of micro-tip arrangements different from each other so as not to overlap each other.

The separation plate is inserted between the plurality of dual plates in each pair of the pairs of the dual plates to separate the plurality of the dual plates.

In the intermediate head, a cavity filled with a coating liquid is formed in the longitudinal direction and inserted into the center of the plurality of pairs of the dual plates to distribute the coating liquid to the adjacent dual plates among the plurality of dual plates.

On the inner surfaces of the first and second side bodies, cavities filled with the coating liquid are formed in the longitudinal direction.

As shown in FIGS. 18 and 19, the sixth embodiment of the present invention includes four dual plates for coating an ultra high resolution panel with one head.

Four dual plates can be placed by machining cavities on both sides of a thick, stainless, sus, medium head and connecting the solution inlet.

As shown in FIG. 20, the four back plates having micro-tips can increase the number of coating stripes, that is, the resolution, by a factor of two by disposing the micro-tips so as not to overlap each other.

Thus, in the sixth embodiment of the present invention, a high-resolution stripe coating can be performed by one head without disposing a plurality of heads in two or more rows as in the prior art.

21, the intermediate head includes a first side body 100, a second side body 200, a plurality of pairs of dual plates and a separating plate, and a plurality of screw holes formed on the left side surface and the right side surface, Can be combined.

To this end, the first side body 100, the second side body 200, the plurality of pairs of dual plates, and the separator also have a plurality of screw holes at positions corresponding to a plurality of screw hole positions formed in the intermediate head .

On the other hand, the present invention is not limited to the above-described slot die heads for high resolution in the first and second embodiments, but may be applied to a system constituted by a plurality of apparatuses or to an apparatus constituted by a single apparatus.

(Or a CPU or an MPU) of the system or apparatus supplies a program code of software for realizing the functions of the above-described first and second embodiments to a system or an apparatus and stores the program code And executing it.

In this case, the program code itself read from the recording medium realizes the functions of the above-described first and second embodiments, and the recording medium storing the program code constitutes the present invention.

As the recording medium for supplying the program codes, for example, a floppy disk, a hard disk, an optical disk, an optical magnetic disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card and a ROM can be used.

Further, by executing the program code read by the computer, not only the functions of the above-described first and second embodiments are realized, but also an operating system (OS) operating on the computer based on the instruction of the program code, Or the like performs a part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.

In addition, after the program code read from the recording medium is recorded in a memory provided in a function expansion board inserted in a computer or a function expansion unit connected to the computer, the expansion function is extended to an expansion board or expansion A case where a CPU or the like provided in the unit performs processing to perform a part or all of the actual processing and the functions of the first and second embodiments described above are realized by the processing.

That is, the recording medium according to the first and second embodiments of the present invention is loaded with a program executable by a computer.

In this recording medium, each of the plurality of die heads includes a first side and a second side body and a dual plate, wherein the first side and the second side body are plates having a right-angled trapezoidal shape in cross section, One side of the hypotenuse contacts the bottom to form a head lip; The function of inserting the microplate between the first side and the second side body by recording the plurality of micro tip arrangements so that the plurality of micro tip arrangements do not overlap each other is recorded.

Further, the present invention is not limited to the slot die head for high resolution of the third embodiment described above, but may be applied to a system constituted by a plurality of apparatuses or to an apparatus constituted by a single apparatus.

A recording medium storing program codes of software for realizing the functions of the third embodiment described above is supplied to a system or an apparatus and a computer (or a CPU or an MPU) of the system or the apparatus reads the program codes stored in the recording medium Can be completed.

In this case, the program code itself read from the recording medium realizes the functions of the third embodiment described above, and the recording medium storing the program code constitutes the present invention.

As the recording medium for supplying the program codes, for example, a floppy disk, a hard disk, an optical disk, an optical magnetic disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card and a ROM can be used.

Furthermore, by executing the program code read by the computer, not only the function of the third embodiment described above can be realized, but also an operating system (OS) operating on the computer based on the instruction of the program code The functions of the above-described embodiments may be realized by the processing.

In addition, after the program code read from the recording medium is recorded in a memory provided in a function expansion board inserted in a computer or a function expansion unit connected to the computer, the expansion function is extended to an expansion board or expansion A case where a CPU or the like provided in the unit performs processing to perform a part or all of the actual processing and the functions of the third embodiment described above are realized by the processing.

That is, the recording medium according to the third embodiment of the present invention is loaded with a program executable by a computer.

Such a recording medium has a plurality of die heads and a head fixing part which is brought into contact with the upper surface of the plurality of die heads to align and couple a plurality of die heads in a plurality of rows, A function including a two-sided body and a dual plate; The first side and the second side body have a function of forming a head lip with a rectangular cross section having a right-angled trapezoidal shape in which a right-angled portion of the right-angled trapezoid is in contact with the upper portion and one side of the hypotenuse is in contact with the lower portion.

The dual plate has a plurality of micro-tips spaced apart from each other by a predetermined distance on the lower side and protruding by a predetermined length, and inserted between the first side and the second side body to move the coating liquid in the head lip direction Is recorded.

A function of being tilted at an acute angle with the coating direction is recorded so that the plurality of die heads are not overlapped with the stripe coating produced through the plurality of microtips.

On the other hand, the present invention is not limited to the above-described slot die head for high resolution of the fourth embodiment, but may be applied to a system constituted by a plurality of apparatuses or to an apparatus constituted by a single apparatus.

A recording medium storing program codes of software for realizing the functions of the fourth embodiment described above is supplied to a system or an apparatus and a computer (or a CPU or an MPU) of the system or the apparatus reads the program codes stored in the recording medium Can be completed.

In this case, the program code itself read from the recording medium realizes the functions of the fourth embodiment described above, and the recording medium storing the program code constitutes the present invention.

As the recording medium for supplying the program codes, for example, a floppy disk, a hard disk, an optical disk, an optical magnetic disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card and a ROM can be used.

Further, by executing the program code read by the computer, not only the functions of the above-described fourth embodiment are realized, but also an operating system (OS) operating on the computer based on the instructions of the program code The functions of the above-described embodiments may be realized by the processing.

In addition, after the program code read from the recording medium is recorded in a memory provided in a function expansion board inserted in a computer or a function expansion unit connected to the computer, the expansion function is extended to an expansion board or expansion A CPU or the like provided in the unit may perform a part or all of the actual processing by the processing and realize the functions of the fourth embodiment by the processing.

That is, the recording medium according to the fourth embodiment of the present invention is loaded with a program executable by a computer.

Such a recording medium has a first side and a second side body, a plurality of dual plates and a separating plate, wherein the first side and the second side body are plates having a right-angled trapezoidal cross section, And one side of the hypotenuse contacts the bottom to form a head lip; The dual plate has a plurality of micro-tips protruding from the lower side, and a function of inserting between the first side and the second side body by making a plurality of micro-tip arrangements not overlap each other is recorded.

A function of separating the plurality of dual plates by inserting the separating plate between the plurality of dual plates; Each of the inner surfaces of the first and second side bodies is formed with a cavity in which the coating liquid is filled in the longitudinal direction, and the first side and the second side body, the plurality of dual plates and the separating plate may be screwed together, do.

The present invention is not limited to the above-described slot die head for high resolution in the above-described fifth embodiment, and may be applied to a system constituted by a plurality of apparatuses or to an apparatus constituted by one apparatus.

A recording medium storing program codes of software for realizing the functions of the above-described fifth embodiment is supplied to a system or an apparatus, and a computer (or a CPU or an MPU) of the system or the apparatus reads the program codes stored in the recording medium Can be completed.

In this case, the program code itself read from the recording medium realizes the function of the fifth embodiment described above, and the recording medium storing the program code constitutes the present invention.

As the recording medium for supplying the program codes, for example, a floppy disk, a hard disk, an optical disk, an optical magnetic disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card and a ROM can be used.

In addition, by executing the program codes read by the computer, not only the functions of the fifth embodiment described above can be realized, but also an operating system (OS) operating on the computer based on instructions of the program codes The functions of the above-described embodiments may be realized by the processing.

In addition, after the program code read from the recording medium is recorded in a memory provided in a function expansion board inserted in a computer or a function expansion unit connected to the computer, the expansion function is extended to an expansion board or expansion A CPU or the like provided in the unit may perform some or all of the actual processing by the processing and realize the functions of the fifth embodiment by the processing.

That is, the recording medium according to the fifth embodiment of the present invention is loaded with a program executable by a computer.

In this recording medium, the first side and the second side body have a rectangular cross section in the shape of a right-angled trapezoid, the right-angled portion of the right-angled trapezoid is in contact with the upper portion, and the one side of the diagonal portion is in contact with the lower portion to form a head lip. A plurality of stepped patterns each having a rectangular shape in which a plurality of shim plates are staggered from each other on the lower side and inserted between the first side and the second side body to discharge the coating liquid in a head lips direction through a plurality of stepped patterns .

The separating wall may include a plurality of micro-tips protruding at positions corresponding to positions of the plurality of stepped patterns on the lower side, and inserted between the plurality of the seam plates to separate the plurality of seam plates. The inner surface of each of the first and second side bodies has a cavity in which a cavity filled with the coating liquid is formed in the longitudinal direction and a function of distributing the coating liquid in the width direction is recorded.

Further, the present invention is not limited to the slot die head for high resolution of the sixth embodiment described above, and may be applied to a system constituted by a plurality of apparatuses, or may be applied to an apparatus constituted by one apparatus.

A recording medium storing program codes of software for realizing the functions of the sixth embodiment described above is supplied to a system or an apparatus and a computer (or a CPU or an MPU) of the system or the apparatus reads the program codes stored in the recording medium Can be completed.

In this case, the program code itself read from the recording medium realizes the functions of the sixth embodiment, and the recording medium storing the program code constitutes the present invention.

As the recording medium for supplying the program codes, for example, a floppy disk, a hard disk, an optical disk, an optical magnetic disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card and a ROM can be used.

Further, by executing the program code read by the computer, not only the function of the sixth embodiment described above can be realized, but also an operating system (OS) operating on the computer based on the instruction of the program code The functions of the above-described embodiments may be realized by the processing.

In addition, after the program code read from the recording medium is recorded in a memory provided in a function expansion board inserted in a computer or a function expansion unit connected to the computer, the expansion function is extended to an expansion board or expansion A CPU or the like provided in the unit may perform a part or all of the actual processing by the processing and realize the functions of the sixth embodiment by the processing.

That is, the recording medium according to the sixth embodiment of the present invention is loaded with a program executable by a computer.

In this recording medium, the first side and the second side body are plates having a right-angled trapezoidal shape in cross section, wherein the right-angled portion of the right-angled trapezoid is in contact with the upper portion and one side of the diagonal portion is in contact with the lower portion to form a head lip. A plurality of pairs of dual plates are provided with a plurality of micro-tips protruding from the lower side, and a function of inserting between the first side and the second side body with different positions so that a plurality of micro-tip arrangements are not overlapped is recorded.

In addition, a separator is inserted between a plurality of dual plates in each pair of pairs of dual plates to separate a plurality of dual plates, a cavity in which the coating liquid is filled on each side of the intermediate head is formed in the longitudinal direction, And a function of distributing the coating liquid to the adjacent dual plate among a plurality of dual plates is recorded.

Each of the inner surfaces of the first and second side bodies is provided with a function of forming a cavity in the longitudinal direction in which the coating liquid is filled.

As described above, the present invention provides a high-resolution slot die head in which a plurality of die heads each having one dual plate are arranged while maintaining a certain distance between micro-tips of slot die used in manufacturing an AMOLED display panel.

In addition, the present invention improves the head installation or the head structure itself without increasing the number of the slot die heads used in manufacturing the AMOLED display panel, thereby increasing the number of striped coating films with a single head, Lt; / RTI > die head.

Through this, it is possible to increase the number of striped coating films (resolution) while sufficiently maintaining the interval between the tips so as to prevent crosstalk phenomenon for high resolution pixel coating.

Particularly, in the third embodiment, the gap between the micro-tips is not reduced, the interval between the striped coating films is reduced, and the density is increased, and by decreasing the line width of the stripe coating film, high resolution stripe coating is possible by changing the head mounting angle.

In the fourth to sixth embodiments, a plurality of die heads are unnecessary, and the initial cost and the trouble of maintenance are saved, thereby improving productivity and convenience of the product.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

In addition, since the present invention can be embodied in various other forms, the present invention is not limited by the above description, and the above description is intended to be a complete description of the present invention, It will be understood by those of ordinary skill in the art that the present invention is only provided to fully inform the person skilled in the art of the scope of the present invention and that the present invention is only defined by the claims of the claims.

100: a first side body
200: second side body
300: back plate
400: Shim plate

Claims (5)

A first side and a second side body having a right angled trapezoidal shape having a right angled portion tangent to the upper side and one side of the hypotenuse tangent to the lower side to form a head lip; And
A plurality of micro-tips protruding from a lower side, and a dual plate inserted between the first side and the second side body such that the plurality of micro- head;
And,
And a head fixing part which is brought into contact with a side surface or an upper surface of the plurality of die heads to align and couple the plurality of die heads in a plurality of rows,
Slot die head for high resolution.
A first side and a second side body having a right angled trapezoidal shape having a right angled portion tangent to the upper side and one side of the hypotenuse tangent to the lower side to form a head lip; And
And a plurality of micro-tips spaced apart from each other by a predetermined distance and spaced apart from each other by a predetermined distance, the micro-tips being inserted between the first and second side bodies to discharge the coating liquid toward the head lips through the plurality of micro- A plurality of die heads including a plurality of die plates;
And,
Wherein the plurality of die heads are mounted to be inclined at an acute angle to the coating direction so that the stripe coatings generated through the plurality of microtips are not overlapped.
Slot die head for high resolution.
A first side and a second side body having a right angled trapezoidal shape having a right angled portion tangent to the upper side and one side of the hypotenuse tangent to the lower side to form a head lip;
A plurality of dual plates having a plurality of micro-tips protruding from a lower side, the plurality of micro-tips being inserted between the first side and the second side body such that the plurality of micro-tip arrangements do not overlap; And
A separation plate inserted and separated between the plurality of dual plates;
And,
Wherein a cavity filled with a coating liquid is longitudinally formed on each of inner surfaces of the first and second side bodies.
Slot die head for high resolution.

Fifth Embodiment A first side and a second side body having a right angled trapezoidal shape having a right angled portion tangent to the upper side and one side of the hypotenuse tangent to the lower side to form a head lip;
A plurality of stepped patterns, each of which has a plurality of rectangular stepped patterns formed on the lower side and which are staggered with each other, and which is inserted between the first and second side bodies to discharge the coating liquid through the plurality of stepped patterns toward the head lip, ;
A plurality of micro-tips protruding from the lower side surface at positions corresponding to the positions of the plurality of stepped patterns;
And,
Wherein a cavity in which the coating liquid is filled is formed in each of the inner surfaces of the first and second side bodies in the longitudinal direction and the coating liquid is distributed in the width direction.
Slot die head for high resolution.
A first side and a second side body having a right angled trapezoidal shape having a right angled portion tangent to the upper side and one side of the hypotenuse tangent to the lower side to form a head lip;
A plurality of pairs of dual plates each having a plurality of micro-tips protruding from a lower side thereof and inserted between the first side and the second side body such that the plurality of micro-tip arrangements do not overlap each other;
A separation plate inserted and separated between the plurality of dual plates in each pair of the pairs of dual plates; And
An intermediate head in which a cavity filled with a coating liquid is formed in the longitudinal direction and inserted into the center of the plurality of pairs of dual plates to distribute the coating liquid to adjacent dual plates of the plurality of dual plates;
And,
Wherein cavities filled with a coating liquid are longitudinally formed on inner surfaces of the first and second side bodies, and the first and second side bodies, the plurality of pairs of plates, the separation plate, and the intermediate head Characterized in that it can be screw-
Slot die head for high resolution.

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