TWI270571B - Image-developing phosphorus powder paint and its preparation method of the anode phosphorus layer - Google Patents

Abstract

Image-developing phosphorus powder paint and its preparation method of the anode phosphorus layer, which provides the preparation technique of a coating of screen printing combined with the exposure-development process; accordingly: (1) providing a simple coating practice of screen printing onto the anode glass substrate; (2) combining material properties and process properties of anode conductive layer for the preparation of paints to increase the adhesion force of phosphorus powder toward the anode substrate; (3) preparing high resolution precise totem by the exposure-development process; (4) the disclosed process having advantages of simplification and reduced cost of paints and capable of being applied in the preparation of glass substrate.

Description

1270571 V. INSTRUCTION DESCRIPTION α) [Technical Field of the Invention] The present invention relates to a field emission display (F丨e丨d Em i s s i orl

Display; FED) The fabrication technology of the anode panel phosphor powder layer, especially the totemization technology of the phosphor powder layer which is screen printed and combined with the exposure and development technology. [Prior Art] The so-called field emission display of the present invention is an electric field generating electrons generated by a cathode electron emitter, and the phosphor powder is excited by the electrons to excite the fluorescent powder of the anode plate. a sub-hair Λ light, its color is light, thin, the size of the effective display area can be determined according to the product requirements #, in addition, there is no such thing as the perspective of a flat-panel liquid crystal display. The field emission display 1a has a structure including at least an anode 3a and a cathode 4a, and a barrier wall is provided between the % pole and the cathode (ri: a vacuum region between the pole and the cathode... and as an anode and a cathode: it'爹- as shown in the figure V, an anode 3' comprises at least an anode glass base, a 31% dipolar conductive layer 32a, a phosphor layer 33a, and a cathode "containing at least one cathode glass". The substrate 4ia, a cathode conductive layer 42a, a Ray-earth shot, the gate of the original /iq ·廿丄4a P捭 "$子毛射" original layer 43a, wherein the anode 3a and the cathode wall 53a are configured to function as The vacuum region between the cathode plate and the anode plate is maintained, and the fluorescent powder is caused to emit light by providing a source of electrons generated by the electron source on the cathode plate and being incident on the anode plate. The field emission of the structure shows crying, 吟: the gap with the anode can be between 50/zm and 2 0 0"

Page 5 1270571 V. Description of invention (2) No more than 1 〇 V /

Vol tage) is greater than 150V, that is, two = dynamic voltage (Turn on powder luminous efficiency is selected according to ":: yin:; bio-electron, as for fluorescence, therefore based on the above characteristics of nt powder material. The low-drive voltage =, and the specification of the anode layer between the powder layer of the phosphor layer appears to limit = ^ 丄 for the anode plate fluorescent light mechanism is the anode plate of the fluorescent;:: cover directly reacts to the phosphor powder The thick production of the lacquer layer is: ί, the structure inside the body layer is special, the so-called -, the structure of the meter, the heart = body; the gap of the anode has been limited to the distraction of the anode and cathode gaps of the electric field. : Dichotomous: The error must be less than the uniformity of the luminescence of each powder. It will also be in the sputum and stalks. Otherwise, the excited fluorescing light and the structure of the phosphor powder layer ^ ^ 2 will be affected, and the so-called phosphor powder in the body layer The fluorescent powder voltage of the distribution structure is at least 150V (the volt-amplitude emission display of the three-pole structure field of the emission display, but even in a so-called so high voltage of the electric castle is limited to 5 〇, Below, the number of stacked layers is: crystal, electrokinetic f, its kinetic energy The fluorescent powder is emitted by the electron beam 71: 夕' can be referred to the second figure, when the first layer is diffracted 72a, or the 'excess electron is refracted or there is enough energy to smash The secondary energy 72a generated by the excitation of the light powder is the excited mode. The second ray is lower than the luminescent powder of the inner layer. The illuminating powder 6 2a is still negotiable (pdp), the image tube of the reed, two 0 (CRT) ) or plasma display phosphor powder, with a household pole 23KV) or high-energy plasma (plasma) to stimulate the difference, so if you refer to the conventional technology for the anode 38 of 1270571, invention description (3) firefly light powder layer Production of 33a, conventional art, first, using a spin coating process of a conventional image tube (CRT) panel to form a powder layer, and then exposure and development technology to make it totem; 2. The use of the phosphor powder layer process of the electric Ι 显 显 不 (PDP) anode panel, the screen printing method uses the printing powder to directly make the totem on the anode:: above. Each has its own advantages and disadvantages, first, the spin coating is considered as the thickness of the 1 coating, although it can be more uniform, but the rotation The mechanism of coating ^ large-scale flat glass substrate is often caused by equipment vibration during the spin coating process, i, the state of the film drying process is easy to make these large flat glass substrates occur ^ you = w = not easy, in addition to 'this production The phosphor layer is applied only to the official anode glass panel. If the fixing agent is not specially used to specifically attach the powder to the powder, the panel is attached to the fluorescent body layer. In addition, the luminous efficiency can be improved and the flaking of the phosphor powder can be slowed down. The process of the aluminum film is not applicable to the low electric field and voltage driving circuit used in the present invention, and therefore it is necessary to pay special attention to this process: The fluorite powder adheres to the glass substrate, and the luminescent powder layer is made for the second and the smudged red, and the luminescent powder layer can be directly printed for the large-sized panel. It adopts a kind of cp10,000 cps or more = viscosity slurry, and a particle size distribution of about 0.5 m of phosphor powder particle size, for example, the coating / spinning group is more than 8 to m to 15 / m And the thickness of the printed powder layer is between 12//claw to 16//m The coating layer produced is still up to two or more phosphor layers, although the particle size of the phosphor powder can be limited to reduce the f-degree of the coating, but the coating can be reduced by the printing thick film process and the stencil structure limitation. The degree of struggle is still limited' and the screen printing method, the net on the mesh also makes

Page 7 1270571 V. INSTRUCTIONS (4) Coating surface thickness distribution The opening is limited so that the lower width is at least greater than 8 0 // The brush is easy to make the coating. The job is... First, the method is to facilitate the powder coating. The yellow light micro can provide the most simple device of the anode plate display fluorescent technology. According to the glass substrate: the two powder and the anode are high resolution and low precision. Applicable [The invention is not limited to the production of the substrate of the body layer. The totem is still not used for field exposure and development. The fabric is applied to the yang system, which can increase the phosphor powder layer. ················· ] According to the conventional knowledge, it is possible to produce a polar glass phosphor powder by spin-drying, another method, and to make a film of the above-mentioned holes. Provide one, can be used for the attachment of four, the substrate technology is transferred to a resolver technology, the substrate; the body and the diameter of the silk cloth and the stencil latex totem have a... Mand, printed totem or 疋 too reduce the thickness of the coating, it is more likely to cause uneven illumination and black shadow to provide a uniform thickness of uniformity of the phosphor coating; Second, can produce a high-resolution fluoroscopy The anode plate of the quality; the embodiment of the present invention shows that the inventor has designed a field emission printing screen printing with exposure and development process for a simple screen printing application on the anode phosphor coating Modulation can increase the fluorescence power. Second, the process can be made by the exposure and development process, and the process is simplified. The method of making the anode fluorescent powder for the field emission display is difficult to meet the production of the large-scale glass-printed fluorescent powder layer. The printed panel is used by the inventor to design a light powder layer to provide a network. Printing and coating according to this: First, can provide a simple screen printing coating 2, with the use of fluorescent powder coating to adjust the adhesion of the conductive layer; Third, to expose

Page 8 1270571 V. Description of the invention (5) Development Simple image of the film This product is firefly, f is used to analyze the precision totem; Fourth, with the system, the coating cost is low, and it can be applied to the production of glass substrate. /Process The main purpose of the present invention is to provide a developable type of two kinds of simple screen printing coating materials, and then equipped with a two-volume process, the phosphor powder layer required for Tenghua. "*光显涂:发:月再— Purpose, is to provide a development type for screen printing. ί明=The resulting exposure development process can produce a high-resolution image i powder x purpose, is provided for screen printing The development type of firefly: Teng. #: Add the applicable fixing agent to the characteristics of the anode glass substrate, and: coat the adhesion of the body to the glass substrate.乂Adding powder i: Ming ^: The purpose of providing a development type of fluorescent light for screen printing, a circuit for low-voltage driving of a field-emissive display, in order to achieve the above-mentioned objects, the present invention provides n Make anode fluorescent = body to print and match the exposure and development process, fix:; ί;: Γ as a developer, then add 荣光 = powder Π 4 electric powder, r add the necessary dispersant to make the aforementioned: High viscosity coating _, real two $: ° week? It is a kind of powder coating that can be used in conjunction with the printing process. The printing method is first to use a developing type fluorescent low-temperature baking to apply d ϊ π on the anode glass substrate, and the - to make it easy to sleep. Dry film formation, followed by exposure and development with mercury light ultraviolet light, chemical reaction by photoreaction in the ': region, followed by the process of uniforming, in addition to dissolving and stripping areas that are not intended to be tossed,

1270571 V. Description of invention (6)

The developed coating can be adhered to the anode electrode of the anode glass substrate after a drying process. The developing type fluorescent powder coating composition comprises a water-soluble resin dissolved in the solvent; and has a photoreaction initiation resistance characteristic and is dissolved in the solvent; and has a fluorescent powder, suspended; and a fixing agent It is also necessary to assist the phosphor powder to be fixed on the anode structure, wherein the viscosity of the developed molding material is controlled between 500 and 2 〇〇〇〇〇cps to adapt to the netbook. The invention relates to a square developing type fluorescent powder coating for preparing an anode fluorescent powder layer, which comprises the following steps: (1) printing method firstly printing and developing a developing type fluorescent powder coating; (2) secondly After a low temperature pre-baking, the coating layer is solidified into a film; the pulverized water k is generated by ultraviolet light and combined with the totemization required for 12°, and the photo-reaction is carried out to carry out chemical chain post-development development, since n is a water-soluble resin, which can be used to develop the lamp; and (5) a, a ό, 旳 through a drying process. In order to further understand the inner valley of the hair of the technology, please refer to the detailed description of the invention under τ π & ^ m I 而 and the drawings are only for moxibustion i yang Also 丨 ^ ^ 仏 4 test and description use, not used to limit the person, another, i 曰 曰 μ #夂者FI κ II and the advantages, for familiar with this technique r + n and then explain it, will also It has become clear that the present invention provides a chain of surnames. A type of development-type material that can be printed and coated is prepared by a printing sub-mixing and warming process to produce a phosphor powder to make a fluorescent solvent; And the agent has a negative type of light floating in the solvent after the procedure is accompanied by the requirement of the fluorescent powder coating. The method is firstly performed by using a screen printed anode substrate (3) followed by a mask; (4) with water as a feature of development and with the accompanying drawings, however, the present invention is a phosphor powder coating. Development

Page 10 1270571 V. Description of the invention (7) The material-glued fluorescent powder coating is made of a water-soluble resin such as polyphosphoric acid, and is added with a photoreaction initiator such as dichromate to make a negative a photoresist, followed by a phosphor powder, and a fixing powder or a fixing agent, the so-called fixing powder may be a glass powder, and the so-called fixing agent may be a TEOS cerium oxide solution. In addition, it is necessary to add a conductive powder such as silver powder, indium oxide, indium tin oxide (IT 0), etc. to support the conductive impedance of the phosphor powder layer (the invention adopts a P - 2 2 series phosphor powder). Body, is a semiconductor material w). The above modulation is a high-viscosity coating with a printing process of at least 5,000 cps or more for printing, and the implementation method is to print the developing fluorescent powder coating by printing. Coating on the anode glass substrate, curing the coating layer into a film after a low temperature pre-baking, and then exposing the ultraviolet light to the surface of the photomask required for the totemization to excite the area to be totemized The reaction is chemically linked and subsequently developed. Since the water-soluble resin is selected, it can be developed by using water as a developer, and the cost is low and the environmental protection requirements can be lowered: the developed coating can be subjected to a drying process. The high temperature sintering is performed on the anode glass substrate with & light powder. According to the present invention, a printable coated development type fluorescent coating is prepared by printing and cooperating with an exposure and development process to produce a phosphor powder reed. The development type of the fluorescent powder coating material is a water based solvent. In the day = polymer polyester raw materials, such as 1% to 15% by weight of polyethylene: = 1% to 5% by weight of dichromate as photoreactive starting xenon photoresist, both Combined as a negative-type photoresist base material; "^ as a fluorescent powder used 35% to 45% by weight, Lidan 仏 思 思 outside, plus 〃 均 均 粒径 粒径 选用 选用

1270571 V. Inventive Note (8) is suitable for 1 // m to 5// m; in addition, with the subsequent sintering process, adding the necessary fixing agent or fixing liquid to the coating, glass powder or TE0S (four The oxyethyl oxime solution is preferably added in an amount of 1% to 5% by weight to increase the adhesion of the phosphor powder; and, in order to reduce the impedance of the phosphor powder layer, an 8% to 5% by weight is added. Conductive powder such as silver powder, indium tin oxide, indium salt, etc.; further, in order to increase the powder to be coated with a dispersant or an interface active agent, it can be prepared according to the invention by modulating between 50,000 and 20,000 cps. The development is applied to the anode glass totem coating area in a printed manner to effectively print a uniform flat coating; the film is formed and maintained at a temperature to be excited by the ultraviolet light tube, illuminating to illuminate The cover, the exposed area can be exposed to develop, the developer-pressurized pressure is sprayed to develop the totem and the mask design. The totem anode plate can be simply baked: = 'The anode plate can be developed after development Above the anode electrode. The uniform dispersion in the material can be added to the developed coating material with the final viscosity control applied to the printing process. The embodiment of the type of fluorescent powder coating, on the glass substrate, the printing stencil can be pre-set with the coating 'by the printing of the printing process, the coating is simply baked to expose the coating; the exposure method is selected Less water 5 0 0 0 1 u X or more, and design a negative to be retained after development, after a period of time using water with a certain temperature, apply 'developed after retaining the phosphor powder layer can be controlled at 5 / / m or less; the developer remaining on the anode glass substrate after development is warm-sintered, and the phosphor powder layer is fixed to the phosphor powder based on water.

In order to explain the development of the development type phosphor powder coating material of the present invention, the following application examples of the present invention are made; and the developing type phosphor powder coating preparation system of the present invention is produced.

1270571 V. INSTRUCTIONS (9) Solvent, adding 12% by weight of polyvinyl alcohol, adding 3% by weight of sodium chromate, and the average particle size of 1 # m of phosphor powder 4 0 %, and the powder particle size of 0.1% of the glass powder 3% by weight, 10% by weight of the silver powder, and the necessary dispersant or surfactant is added to assist the dispersion of the aforementioned powder particles. The coating of the present invention is applied to the anode glass base by a printing process to form a coating having an average thickness of about 4 to 6 // m, and baked at 60 ° C for about 10 minutes, and then exposed to illuminance. After exposure to ultraviolet light of 5 0 0 1 u X for 1 minute, development was carried out. The development method was developed with deionized water at a water temperature of 4 5 ° C and a water pressure of 2 K g / cm 2 . Fluorescent powder totem on the panel, the resolution can reach 丨〇/zm, the area between the gaps of 0 0 m and no totem can have 涂料·1% or less of the paint residue, and the area with no totem between the gaps of 5 0/zm is almost ^ The straightness error is maintained below 2 · 〇 / / m. The developed anode glass base removes the residual developer, followed by the developed coating. The details of the above method for producing a phosphor powder layer are as follows: The material composition of the invention of the present invention comprises: melting, and having a photoreaction initiator negative, and having a glory powder suspended therein, which can help fluorescent The powder is prepared between the developed fluorescent powder prepared in the fixing process at 20,000 cps to adapt to the residue of the screen printing, and the developing totem of the coating can meet the demand of the commodity application. 1 〇〇. The enamel is baked for about 1 minute to perform high temperature sintering, i.e., the present invention is disclosed in a print-fit exposure development operation. a type of fluorescent powder coating material, the water-soluble resin is soluble in the solvent and soluble in the solvent; in the solvent; and the fixing agent is also attached to the anode structure after necessary, the bean The viscosity of the body coating is controlled at 5 〇〇 (10).

Page 13 1270571, invention description (10) The development type phosphor powder coating of the present invention may further comprise the following characteristics; further having a conductive powder with a lowering of the surface layer of the coating layer may also be pushed one day > The mountain "-, five details of the characteristics of the electric yu 々 Xu: six, like to! the conductive layer of the impedance characteristics, can further have a dispersant can be distributed in the solvent with the powder or particles evenly dispersed in the solvent The conductive powder may be a powder of silver powder, indium salt or indium tin oxide, and the tamping agent is a glass powder or a nitrocellulose or a TEOS (tetraethoxyethyl hydrazine) solution, the solvent is water, The water-soluble resin may be a polyvinyl alcohol, and the photoreaction initiator may be: a dichromate type, wherein the enthalpy I_ gan oxime is 堇 an anodic electron 鸯 light: body ... s, which may be The method of heating and sintering a dichroic coating as an anode fluorescent powder layer is carried out by using a developing type 2: a wide-light powder coating is printed and applied on an anode base by a low temperature pre-bake coating. The layer is cured to form a film; (3) The light is combined with the reticle required for totemization to make the exposure, so that the totemization zone is subjected to photoreaction to carry out the chemical chain. (4) Subsequently, the member shadow is used. The developer is developed; and (5) subjected to a drying process. Fine 邛: "The method of the method of the ruthenium anode phosphor powder layer can be variously described, and the 邛 branching is interspersed as follows, and the present invention can further Including a step, the step/middle cover is subjected to a specific fixing process to form an anode glare powder system, and the illuminance can be 4__6GGg lux ultraviolet light exposure Utt sub-L and pre-baked coating layer 4〇—8〇°C梧Bake about 5-20 knives. The development step can be temperature 30—6〇 and water pressure 〇5_3

1270571 V. INSTRUCTIONS (11) Kg/Cm2 deionized water is used for development. 90 1 times of baking is about the heart shadow. The drying procedure can be carried out by the above method, and the process layer can be implemented according to the process. System 3, according to the development of the technology and the application of the advantages and progress, benefit. Detailed disclosure and verification ^The invention is simple and the anode is coated. The high resolution totem produced by the present invention is made of the invention and is environmentally friendly. It has been described that the present invention is true and complete. Please refer to and pay attention to the details of the invention. The advantages of the present invention are as follows; the shadow type phosphor powder coating can be evenly coated and matched with the powder layer. An anode panel produced by exposure development. The sub-emitter layer, the coating preparation can be implemented in commercial applications. To achieve the intended use, the patent application requirements, 爰 本 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The present invention describes the equivalent structural changes of 壹 and 容容, and all of them are the same; “7 brushing • Light illuminating powder is easy, with the right of new law. This is the scope of the chart 1270571. The drawing briefly illustrates the first figure, the structure of the field emission display component; and the second figure, the fluorescent technology of the prior art. Schematic diagram of powder coating structure.

Field emission display 1 a anode 3 a anode glass substrate 31a anode conductive layer 32a phosphor powder layer 33a cathode 4 a cathode glass substrate 41a cathode conductive layer 42a electron emission source layer 43a barrier wall 5 3a phosphor powder 61a phosphor powder 62a Electron beam 71a secondary energy 72a

Page 16

Claims (1)

!27〇571 曰号 9Wn7WR_ι VI. Patent application scope: A development type fluorescent powder coating for use in screen printing and coating of electronic devices, including solvent, water gluten resin dissolved in In the solvent; = the reaction initiator has a negative photoresist characteristic and is dissolved in the solvent; the light ^7 body 'suspend in the solvent; and 7 above 4, can help the phosphor powder after the fixing process Attached to the anode structure to 200^f light powder coating viscosity control between 5_〇PS to meet the requirements of screen printing. Further, as in the developing type fluorescent powder coating material according to the above item 1, the powder has a lowering of the conductive resistance characteristics of the surface layer of the coating layer. ,Into the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ "There is a developing type glory powder coating as described in item 1 of the first or fourth stipulations of the scorpion or sputum." = Γ cotton, the solvent is water, the water-soluble resin / light reaction The starting agent is a heavy complex acid salt. The developing type fluorescent powder coating material as described in the second item of the second application of the second application, such as the squeezing quinone body is silver powder, indium salt or strontium tin oxide. Powder, wherein the fixing: Λ范Λ1, the shadow type fluorescent powder coating 7, a method of sintering is to form an anode fluorescent powder layer. The method of light powder layer is used as applied on page 17 1270571 Patent application scope: The development type fluorescent powder coating described in Item 1 of the yoke, including the following γ 1) printing the developed fluorescent powder coating on the 11⁄4 pole substrate by screen printing (2) After a low temperature pre-baking, the coating layer is solidified into a film; the light is then generated by an excitation lamp to produce ultraviolet light and combined with the desired chain for totemization; and the yttrium is exposed to cause photoreaction in the totemized region. After chemical water H ^ is used for development, since a water-soluble resin is selected, it can be developed by using water as a developer; and Eli (5) is subjected to a drying process. The method of making the anode fluorescent powder layer described in Item 7 of Fan Yiwei, a specific fixing process ί = two two "!, so that the coating film of step (5) is carried out 9 Such as Shen ^ ^ into an anode fluorescent powder coating. The method of the bulk layer, i: 1: circumference * made in the eighth item to make the anode fluorescent powder 八τ side solid 耆 program for sintering. In the production of the anode fluorescent light in the second item of the second _ tu tui? The ultraviolet light exposure step of the purple illuminating step is performed by ultraviolet light exposure r ^ , , ^ Λ + first 0 · 5 - 3 minutes with an illuminance of 40 0 0 - 6000 lux; wherein the low temperature pre-bake coating step is 4 0 - 8 (Tc,]: stand and seat μ r. ^ Bake for about 5-20 minutes; wherein the development step is at a temperature of 30 - 60 ° C and water pressure nc η τ bite ι Q · 5 - 3 Kg / Development of deionized water of cm2. 1 1. The method for producing an anode phosphor powder layer according to item 7 of the patent application scope, and the method of drying in the middle step (5) is 9 〇 - 1 1 〇 Baking at °C for about 5 - 20 minutes. Page 18