TW200532313A - Method for manufacturing color filter with RGB array printing nozzle - Google Patents

Abstract

The present invention provides a method for manufacturing color filter with RGB array printing nozzle, which include steps of: (1) providing a transparent substrate having a plurality of black matrices formed on the transparent substrate; (2) forming a plurality of block walls that correspond to and are located on those black matrices; (3) providing a printing device having RGB array nozzles, and axially moving along rows of the black matrices for continuously spraying ink on the transparent substrate; and (4) forming several bands of red, green and blue ink layers aligned with each other by pair on the transparent substrate. With the method, the RGB ink of the color filter can be directly and continuously sprayed on the transparent substrate so as to solve the problems of having imperfect printing quality and requiring alignment.

Description

200532313 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a method for manufacturing a color filter and an inkjet device for manufacturing a color filter with a three-color (RGB) array. The three-color (RGB) ink of the color filter is continuously spray-formed on the transparent substrate. [Previous technology] With the advancement of technology and information, color filters (monitors, mobile phone screens, and charge-coupled manufacturing methods for Taiwan Patent Bulletin No. 4 7 9 1 4 7 are based on the use of inkjet head color layers. Long strip structure. The color device is uncovered, and then each pixel on it is calculated and corrected to provide an image that can be transmitted to the drawing data. The drawing data generator is transmitted to the driver and transmitted to each color (RGB) spray. The ink head then uses the relative position of the drive platform to move, and then draws a measurement that is too complicated and difficult to operate. The mass production requirements of color filters. In addition, the Taiwan Patent Bulletin No. 1 method of manufacturing color filters In order to obtain rich color information, CF is widely used in video products such as color liquid crystal display elements and scanners. No., which reveals the scanning action of a color filter to complete the R, G, B color dew. The technology of selecting a reference filter's optical effect and aperture area first, and then drawing the design value of the coloring condition, the generator, The respective signals are then passed through the moving device, and the driving signals are separated and transmitted to the respective feeding devices. To change the color pattern of each color inkjet head and substrate. However, this method and the high equipment cost are not suitable for Cai 5 2 6 3 4 0. It also discloses a microfluidic which uses a photomask to be located on the transparent base.

200532313 V. Description of the invention (2) The photoresist layer on the board is developed by exposure to form a plurality of barrier plates and a plurality of connecting walls. The width of the barrier plates must be no greater than the width of the black matrix, and a trench is formed between the barrier plates. These connecting walls are connected to the narrow and long barrier walls' to avoid the barrier walls, and the visibility of the dedicated connecting walls is not greater than the width of the black matrix. These barrier plates and connecting walls are temporarily formed on the black matrix of the transparent substrate to avoid the problem of color mixing caused by inks of different colors. However, this patented design does not solve the positioning problem of the inkjet head. Therefore, the inkjet head still needs to spend a lot of time in positioning and scanning during the spraying process, so it is not suitable for mass production of color filters. demand.

The reason is that the inventor of this case feels that the above-mentioned defects can be improved, and based on years of relevant experience in this area, he has carefully observed and researched it, and combined with the application of science, he proposes a reasonable design and effective improvement of the above-mentioned impossible mass production The absence of color filters. [Summary of the Invention]

The present invention relates to a method for manufacturing a color filter and an inkjet device for manufacturing a color filter having a three-color (RGB) array. The method is combined with the use of three-color (RGB) array nozzles and forming a barrier wall on a transparent substrate. The three colors (RGB) of color filters can be continuously sprayed and formed on the transparent substrate, thereby solving the problem of inkjet method. Problems of poor value and positioning. Accordingly, the present invention provides a method for manufacturing a color filter using an RGB continuous inkjet array, including the steps of: 1. providing a transparent substrate

Page 7 200532313 V. Description of the invention (3) (substrate), a complex black matrix (black matrix) is formed on the transparent substrate; 2. a complex barrier wall (b 1 0ck walls) is formed on the black matrix Above, and the barriers correspond to the black matrices; 3. provide an inkjet device (printing device), which has red, green and blue array nozzles (RGB array nozzles), along the axis of the black matrix row Move and continuously eject ink on the transparent substrate; and 4. A plurality of red, green, and blue ink layers are formed adjacent to each other on the transparent substrate.

In particular, the inkjet device of the present invention uses the chambers of different colors to be arranged corresponding to the black matrix. Therefore, the RGB array setting of the nozzles can achieve the continuous spraying operation. Therefore, by implementing the method of the present invention, the following advantages can be achieved: 1. Save the positioning time between the inkjet device and the substrate; 2. The structure of the inkjet device is simplified, and it is easy to manufacture; 3. The color filter can be mass-produced quickly Light sheet; 4. Reduce the cost of manufacturing color filter equipment; and 5. Avoid ink mixing. [Embodiment]

Referring to the first figure, the present invention provides a method for manufacturing a color filter using an RGB continuous inkjet array. First, a transparent substrate 10 is provided, and a plurality of black matrices 11 are formed on the transparent substrate 10. The black matrices 11 define the pixels of the display panel.

Page 8 200532313 V. Description of the invention (4) Next, a photoresist is formed on the transparent substrate 10 by using a slit coating (s 1 itc 〇ating) technology, and then a groove is formed by using techniques such as exposure development, money engraving, etc. The space, as shown in the first figure, is used to form a plurality of barrier ribs 12 on the black matrices 1 1, and the barrier ribs 12 are in a vertical line with the black matrices 1 1 (c ο 1 umns) corresponds to the row (r ows), that is, the Y-axis and X-axis barrier walls 12 are formed as shown in the first figure. As shown in the first figure, the thickness of the barrier walls 12 is equal to the lateral width of the black matrices 1 1, and the four walls of the groove space are the barrier walls 12 so that the ink can be prevented from being mixed. The method of the present invention, please refer to the second figure, which provides an inkjet device 20, such as a thermal bubble ink jet printing device or a piezoelectric ink jet printing apparatus. Ink supply sources 21, 22, 23 (for example, red ink source 2 1, green ink source 2 2, blue ink source 2 3) are respectively connected to the inkjet heads 2 1 a, 2 2 a, 2 3 a (for example, red Inkjet head 2 1 a, a green inkjet head 2 2 a, and a blue inkjet head 2 3 a), wherein the inkjet heads 2ia, 22a, 23a are adjacent to each other and ij, each The inkjet heads 21a, 22a, and 2 3a each have a plurality of chambers 2 1 0, 2 2 0, and 2 3 0 which communicate with each other in a row. For example, the red ink supply source 21 is connected to the red inkjet head 2 1 a. There is a row of chambers 2 1 0 communicating with each other, thereby simplifying the structure of the inkjet heads 2 1 a, 2 2 a, 2 3 a. The chambers 2 1 0, 2 2 0, 2 3 0 between different colors are aligned with each other, so that the arrangement of all the chambers 2 1 0, 2 2 0, 2 3 0 corresponds to those on the black matrix 1 1 Groove space to form a matrix cavity 2 1 0, 2 2 0, 2 3 0 with aligned rows and columns. Please refer to FIG. 3A, which is a bottom view of the inkjet device 20 of the second image,

200532313 V. Description of the invention (5) It shows the r GB nozzle array provided by the present invention, wherein the nozzles 2 1 1, 212, 213, 221, 222, 223, 231, 232, 233 ... are located in a part of the chamber The surfaces of 210, 220, and 230 are shown in the embodiment of the present invention. Every two nozzles of the same color (for example, red nozzles 2 1 1 and 2 1 2) are separated by two chambers 2 1 0. Space, and every two nozzles of different colors, for example, the red nozzles 2 1 1 and the green nozzles 2 2 1 are not adjacent to each other, in other words, they are only adjacent to each other by diagonal lines. The arrangement of the nozzles is not limited to this. Please refer to FIG. 3B for another embodiment of the present invention. Every two nozzles of the same color, such as red nozzles 2 2 1, 2 2 2, It is a space separated by two chambers 2 2 0, and every two nozzles of different colors, for example, the red nozzle 2 2 1 and the green nozzle 2 1 1 are not adjacent to each other, in other words, they are adjacent only by diagonal lines. However, when the nozzles are arranged in the third B diagram, the ink supply source 2 2 and the inkjet head 2 2 a of the inkjet device 20 need to be set to red ink according to the above nozzles 2 2 1, 2 2 2 ... The inkjet device 20 is arranged in red, green and blue array nozzles according to different arrays. Since the inkjet chambers 2 1 0, 2 2 0, 2 3 0 of the present invention correspond to the groove space on the black matrix 1 1, that is, between the horizontal and vertical barrier walls 1 2, the cavity The nozzles 211, 212, 213, 221, 222, 223, 231, 232, 233, ... arranged on the chambers 210, 220, 230 can be arranged in an RGB array in a staggered manner, as shown in FIG. 3A or FIG. 3B. Therefore, please refer to the second figure. The inkjet device 20 only needs to move along the longitudinal axis (the Y axis shown in the figure) to continuously eject ink on the transparent substrate 10. Therefore, ‘using the RGB array inkjet of the present invention requires only one positioning time’ and no

Page 10 200532313 V. Description of the invention (6) The inkjet can be completed by scanning and positioning back and forth. In other words, the general nozzle diameter is about 3 0 // m, and the width L of the black matrix 11 is about 8 0 // m. Therefore, before the inkjet device 20 moves, as long as the recess on the transparent substrate 10 is aligned, The groove can then be moved along a single axis without scanning and positioning. In addition, each inkjet head 2 1 a, 2 2 a, 2 3 a, can be provided with hundreds of chambers 2 1 0, 2 2 0, 2 3 0. Therefore, the arrangement of the nozzles depends on the transparent substrate 1 The nozzle size can be set according to requirements. For example, each nozzle can be provided with more than 200 nozzles. The inkjet action can be quickly moved along a single axis to complete continuous inkjet. The three colors (R, G, B) of the color filter are spray-formed on the transparent substrate 10 continuously and continuously. Finally, after the three-color (RGB) inks are cured, the barrier walls 1 2 are completely removed, and a plurality of red, green, and blue ink layers are formed adjacent to each other on the transparent substrate 10, that is, As shown in the fourth figure. By implementing the method of the present invention, it is possible to save the positioning time between the inkjet device and the substrate, simplify the structure of the inkjet device, facilitate manufacturing, quickly mass-produce color filters, and reduce the cost of manufacturing color filter equipment , And the advantages of avoiding ink mixing and so on. Finally, although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with the art can make some changes and retouches without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of the appended patent application.

Page 11 200532313 The drawings briefly explain the other features and advantages of the present invention through the description of the preferred embodiment and the explanation of the drawings, which can be more significant. Among them: The first drawing is the present invention "Using RGB continuous inkjet array to produce color The transparent substrate and black matrix of the "filter"; the second figure shows a schematic diagram of an embodiment of the "method for manufacturing a color filter using an RGB continuous inkjet array" according to the present invention; the third diagram A and the third diagram B are based on The inkjet device in the second figure is a schematic diagram of array nozzles in different arrangements; and the fourth figure is a pattern of inkjetting according to the method of the present invention. Element representative symbols 1 0, transparent substrate 1 1, black matrix 1 2, barrier wall 2 0, inkjet device 2 1, 2 2, 2 3, ink supply sources 21a, 22a, 23a, inkjet heads 210, 220, 230 , Chamber 21 1 > 212 > 213 ^ 221, 111 ~ 223 > 231 '232 ~ 233' nozzle

Claims (1)

200532313 VI. Application Patent Scope 1. A method for manufacturing a color filter by using an RGB continuous inkjet array, comprising the steps of: providing a transparent substrate having a plurality of black matrices formed on the transparent substrate; Forming a plurality of barrier ribs (b 1 0ckwa 1 1 s) on the black matrices, and the barrier ribs correspond to the black matrices; providing an inkjet device (red, green and blue) An array nozzle (RGB array η ο zz 1 es) is moved along the longitudinal axis of the black matrix, and continuous inkjet is performed on the transparent substrate; and a plurality of red, green, and blue ink layers are formed adjacent to each other. On the transparent substrate. 2 There is a head mounted ink and inkjet color, the green one, the ad ad, the r, the e, the in, r, and the neci around Γ Γ \ Fan Li, please apply for the first color and 1 neighbor 11 In Sb, the two ink heads of the two ink-jet heads are printed in black and blue, and the colors are colored, and the ink in the ad is sprayed so that the nozzles are horizontal. One nozzle has a nozzle array array of blue and green sprays of red and white. Each row is sprayed out, and it is set to install 2nd. Fan Li specially requested that the colors and colors of the sprays be the same. That is, the terms of the v-side chambers of the chamber C are described in the horizontal cross section. The color and appearance are the same. The numbers rs have be with am head ch ink C chambers have the same moments »ovQ ° There are two pairs of columns in each row, and the rows and sides form a table-shaped room. The moment separation of the cavity array is black. The nozzles should be sprayed to the column and line up. Page 13 200532313 VI. Scope of patent application Nozzles of different colors are separated by two chamber spaces, so that each two rows of nozzles of different colors are not adjacent to each other. 4. The method according to item 1 of the scope of patent application, wherein the step of forming a plurality of barrier ribs (b 1 ckwa 1 1 s) on the black matrices uses a slit coating technique (s 1 itc 〇). ating). Fan Li specially asked Shen Ru 5 to be darker and thicker wall to block some of them? Ο Method and other aspects of the degree and width of the horizontal direction of the horizontal 6 of the c-gtl light color made It is installed with a set of ink jets. · The array contains ink packs. Spraying is continued at Lianzhen B. Its nozzle is sprayed horizontally. It has a g ^ lg ^ l nozzle with a head and a color. Color. Yanzui can't spray two blues in a row; for each green mouth, red sprays are arranged in parallel and 9 horizontally. One or two are two, with the neighbors. The Bank of China is the 6th Fan Li specially asked Shen Ru 7 to print green ink, the color chamber is not in the same cavity, and the opposite rows of the rectangular chamber are all horizontal items, and the color is red to the number. It has its own structure. The separate coloring head is sprayed with color and blue to form a table-shaped room, and the cavity is equally divided. § ΚΓ is in the mouth of the other room and sprays the cavity. Make a cavity. The two adjacent phases are not in the same direction. The mouth of the spray line is the same color in the spray system.