TWI322998B - - Google Patents

Description

1322998

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic hairpin for a cathode emission display cathode plate: an activation method 'particularly, one can prevent the electron emission source from being destroyed, and the k-nan activation efficiency retains more carbon nanotube electrons. The method of transmitting the source. [Prior Art] The three-pole field emission display of Dezhi Z knows that its structure mainly includes an anode structure/drag structure, and a support is provided between the anode structure and the cathode structure. The pacer) is provided as a space between the anode structure and the vacuum region between the cathode structures, and = is a support between the anode structure and the cathode structure, the anode structure comprising an anode substrate, an anode conductive layer and a phosphor powder layer (phosphors) 1 ayer), the cathode structure comprises a cathode substrate, a cathode conductive layer, an electron emission source layer, a dielectric layer and a gate layer; wherein the electron emission source layer is mainly composed of a carbon nanotube, Since carbon carbon (Carb〇n nan〇tubes) has been raised by iijima in 1991 (Nature 354, 56 (199ι)) is extremely high. ~Electronic characteristics, and has been used in a variety of electronic components, but Mi Sui can have a very good aspect ratio (aspect γ8η〇) greater than 0' and high rigidity, the Young's coefficient is more than 100 OGPn, Whereas the tip or defect of the carbon nanotube is exposed on an atomic scale, the above 14 is thus <is an ideal field electron emitter material such as a cathode structure of a field emission display. The use of electronic emission sources. Since the carbon nanotubes have the physical properties shown above, they can also be designed for various processes such as screen printing or film processing to be used for electronic components. However, in the so-called cathode structure manufacturing technique, the carbon nanotubes are made.

1322998 V. INSTRUCTIONS (2) The electron source material is fabricated on a cathode conductive layer, which is: chemical vacuum deposition (CVD), or can be made by photo-sensitization method e/cold liquid totemization. On the cathode conductive layer in the pixel, the D/, carbon sprayed carbon nanotube solution is prepared with a mesh cover, or a type = can be coated on the cathode conductive layer for the carbon tube coating, but regardless of the After production, give 550. (: The above high-temperature sintering, 俾 移除 移除 于 各 各 各 各 移除 并 并 并 并 并 并 并 并 并 并 并 并 并 并 并 并 并 并 并 并 并 并 并 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈 奈After the electron emission source process, the :::: sub-emissive source surface activation process is required. Because of the high-temperature sintering, the good crystal form is the same as the 3 quality material structure, the middle contains the unheated, warm carbonized material, and these materials will be assembled in Electricity;: There are several kinds, the production of ί, the processing method of the conventional skills, the first one is oxidized and removed by surface heat treatment, > make these collections slay the ancestors ~ road out, the first one The surface heat treatment only exposes the opportunity or the opening to remove the reinforced carbon nanotubes buried in the τ. ΐΐ The way of sticking the surface to the non-effective materials is the third point. The mode cost is low, and the effect is that the film is removed by stripping after peeling film of Taiwan Patent No. 4805 73, and is attached to the surface of the electron emission source before removal. Structure for the purpose of activation, benefit process, use 22 No. 33, Qinmi carbon tube electron source field emission current, using a hot-melt glue or a soluble coating using a hot-cast type to 1322998 V. Invention description (3) Electrode emission source surface in each pixel of the pole structure 'or According to the invention, the patent application just proposed is to spray a polymer into a two-pole structure to form a film, and then transfer the melt or film to the surface of the activated electron emission source. "The above-mentioned conventional techniques can still retain a certain carbon nanotube attached to the cathode for the process of removing the surface material from the cathode electron emission source. • The electronic hair produced by screen printing: The source of the non-meter carbon tube is sintered by the glass powder or the silver powder material to be fixed on the cathode electrode. In addition, in recent years, (4) carbon tube: the technology for making the electron emission source is more diverse, In addition to the screen printing method CVD directly, long, there are spraying or electrophoretic deposition methods, etc., the electron emission source structure formed by the system is different from the cathode electrode manufacturing technology. ,. There is still a limit to the mechanism for attaching the activated electron excitation source. °, please refer to Figure 1, after micro-sintering, the electron-emitting layer of each pixel of the plate 1 before activation is not attached. The structure of the structure can be divided into = substrate 2 'the substrate 2 is formed with an electrode layer 3, and the adjacent electrode sounds:: the adhesion layer 4 is mainly composed of glass powder silver powder and carbon nanotubes, and layer 4 is The carbon nanotube structure layer (electron emission source layer = carbon nanotube as the main component, and the non-effective material on the adjacent carbon tube adhesion layer ^ 1 is a carbonaceous bulk material formed by high temperature sintering is ±, the original overlay: 5: The system is intended to remove the non-effective material layer 5 1 to make the carbon tube structure to facilitate the production of the electron beam, wherein the carbon nanotube structure layer is due to the main two loose carbon nanotubes. The adhesion layer and the so-called non-effective material layer are

Page 8 丄5, invention description (4) The block material, the carbon carbon tube material layer 5 of the upper and lower carbon nanotubes is made of the patent case The purpose of the electron emission of the portion of the intermediate layer is such that the structure of the nanostructure, the layer 5 will be fully covered by the tube, and the surface of the layer will be fully exposed to hot melt. The carbon nanotubes of the carbon nanotubes are bonded to the layers of the carbon nanotubes, and the carbon nanotubes are removed by the transfer structure, so that the carbon nanotubes are removed by the damage, and the molecular or molecular solution is removed. The effective material layer 5 is removed, and the molecular material interfacial layer 5 is removed, and the removed surface is represented by the structural layer 5, and accordingly, the surface activity after the destruction is the infusion coating solvent of the present invention. In 1 , even if the material is shaped, the film is destroyed, and the structural strength of the compacted structure is further reduced or broken. The structural force of the dense junction is much smaller than the process of the activation mechanism, and the surface of the carbon tube is not effective. Nano carbon nanotube structure layer 5 machine However, the manner in which the applicants have previously applied for the application still does not complete the surface of the casting or spraying process, and some of them will adhere to the adhesion layer 4 after curing. 'The full packing will be less than the above. Only the non-effective material layer 51 and the bad in the entire single pixel lose the electron yield. SUMMARY OF THE INVENTION Φ The main purpose of the present invention is to solve the problem of the cathodic electron emission source of the three-layer structure by the stripping surface activation process, which may be sufficiently infused into the electron-emitting source layer structure by the melted glue or the high score of the partial pixels. In the process of the process, the electron emission sources in the pixels are excessively stripped or destroyed, and the electron generation effect in each pixel unit or the difference in electron output/electrical density is affected, which affects the uniformity of the image. Therefore, the present invention provides a modification of 13,22998. 5. Description of the invention (5) Good technology is formed by forming a carbon nanotube structure layer in an electron emission source layer before injecting or filling a solvent of a melt or polymer material. a protective layer, such that the molten glue or solvent is limited to the local carbon nanotube layer and the non-effective structural material layer, so that only the non-effective material layer and the eight-carbon nanotube are removed during the process of peeling the covering material, and Retaining most of the carbon nanotubes in the electron emission source structure = causing the aforementioned deletion to occur, so that the electron emission source in the pixel is removed by a large number of patches, and the activated post-electron emission source structure can be utilized. The second simple removal procedure then removes the properties of the previously implemented protective layer material from the original source of the image. For the above purposes, the method for activating the electron emission source surface of the field emission display of the present invention (2) includes: ", after the unactivated cathode plate is completed, the electron emission layer of the cathode plate is One side is selected from the solvent of the protective layer made of ethanol, coated on the surface of the electron source layer and micro-heat treated on the surface to remove the electron emission source, the surface of the non-effective area layer and the surface of the carbon nanotube layer. A small portion of the solvent only retains the protective layer formed on the surface of the electron-emitting source layer and around it; to prepare the coating material, the coating material is an aqueous solution, and the coating material is atomized and sprayed by spraying the high-pressure air by spraying The cathode plate of the protection 2 is prepared. Since the spray coating used is an aqueous solution, the spray coating process can be repeatedly sprayed to ensure that the atomized paint is fully cast on the surface of the electron emission source layer; After the cathode plate, the baking layer is cured for several minutes, and the coating layer is solidified and formed into a film, and then defoamed by a roller type stripping mechanism, which can uniformly remove the film to uniformly activate the electricity. Sub-source layer surface, in stripping

-5, invention description (6)

The electron-emitting layer of the cathode plate is baked for a few minutes to remove excess. [Embodiment] There is still a solvent remaining in the solvent. Ming Ruyi related to the technical content and detailed description of the present invention. Now, please refer to the method shown in the figure (2) and the coating and coating, and then use the effective area to attach to the adhesive layer. The damage of the nai's effect layer and layer exposed, first of the board 1, the system is followed by the first '• this hair, the main agent is not or soaked a simple material to prevent the carbon nanotubes from losing a little less Adding a silver paste to the above-mentioned electricity has an adhesion layer 4; as shown in the figure, the field emission is a coating in which the protective layer is baked or the rotating carbon nanotube is adhered to the unactivated and mutually soluble material. The thermal insulation of the carbon nanotubes exposed by the adhesive material adhered to the carbon tube will ensure that the unactivated substrate 2 is fabricated, and the three extremely protective materials of the display of the present invention can be removed from the substrate layer 3 to be protected. After the surface of the three-pole substrate 2 2 of the back cover layer is removed by a stripping mechanism by using a solvent, a schematic diagram of the cathode plate is used. The surface of the electron-emitting source surface is activated on the cathode plate, and a layer (which can be a solution) is selected, and the surface of the non-effective area and the adjacent non-layer material are removed in an in-depth manner to facilitate the carbon nanotubes around the carbon nanotubes. The formation or melting of the glue is not removed together with the adhesion layer or the film process, or the solvent of the intermediate layer of the carbon nanotube is removed after the film is removed. The cathode plate 1 is a glass. a material layer 3 is formed thereon; the surface of the electrode layer 3 is formed on the surface of the adhesion layer 4 after the adhesion layer 4 is completed.

1322998 简单 Simple description [Simplified description of the drawings] The first figure is a schematic diagram of the cathode plate of the present invention. The second figure is a schematic view of the protective layer formed on the cathode plate of the present invention. The third figure is a schematic view of the spray coating of the cathode plate of the present invention. Fig. 4 is a schematic view showing the stripping treatment of the coating layer of the cathode plate of the present invention. The fifth figure is a schematic view of the structure of the activated cathode plate of the present invention. [Description of main component symbols] Cathode plate.............1 Substrate..............2 Electrode layer.......... ...3 Adhesive layer.............4 Electron emission source layer..........5 Non-effective area layer.........51 Protection Layer..................6 Coatings..............7 Adhesive layer.............8 Drum type Stripping device.........9 ►Airbrush.............10

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Claims (1)

丄 丄 « * 曰 First, 1, the field emission display electron emission source surface activation method r), the method for activating the surface of the electron emission source includes: ϋ Wan go (a), take an unactivated cathode plate; I think that the side of the electron emission source layer of the cathode plate is coated with a solvent on the surface of the non-effective region layer and the carbon nanotube layer β which are formed on the surface to form the protective layer 1 to the surface micro-surface of the Xiaoqiu source layer. For the solvent, only the electron-emitting source is preserved, and the protective layer is formed on the surface and the periphery of the layer, and the coating is applied to the protective layer described above. Forming on the surface of the electron emission source layer - the coating layer. The upper layer is fixed on the casting layer; after the solvent is applied to the cathode plate, it is 'baked', and the film is formed after the film is deposited, and then the coating layer is removed. The uniform activation of the electric power is dissipated [partial solvent, and then the porridge is fully removed to remove the electron emission structure of the field emission display as described in the above item. T. Hai cathode plate is a three-pole negative field:::...-Electric method includes: ', ° Hai cathode plate maker ^ ^, take the substrate, the substrate is made of glass material; • Reuse silver glue on the aforementioned substrate On the surface, the shape of the female C is formed on the surface of the electrode layer after the electrode layer is completed. Page 15, battle with an electrode layer _#号94: UzI717 The scope of the patent application has an adhesion layer; after the completion of the surface 2, the surface of the field emission display described in the first or third item of the above-mentioned adhesion layer is Nye m. carbon tube. , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The display of the meter ^ fi敎 I _ method (b) 'where the protective layer is treated with 40 ° C ::: 30 and 'to remove the surface of the electron-emitting layer and the electron-emitting layer A small portion of the solvent of the surface. 7. The method for the activation of the source surface of the field emission display according to claim 1, wherein the spray atomizes the material by high pressure air. The surface of the electron emission source layer of the cathode plate is sprayed on the surface of the electron emission source of the field emission display according to claim 1, wherein the spray gun is used in combination with the coating solution and the suspension. The solid content ratio, the selected coating spray air The inlet gas flow rate is at least greater than 200 l/min. 9. The method for surface activation of the field emission display electron emission source according to claim 1, wherein the coating can be used to prepare polyethoxylate PVA (Polyvinyl) Alcohol) or polymer PVP (polyvinylpyrrdidone) of any solution. 9 Feng% Π correction replacement page 1322998 _ case number 94144417_year and month correction __ six, _ please patent range 1 0, as claimed The method for activating the surface of the electron emission source of the field emission display according to item 1 (2), wherein the concentration of the coating is 5% to 100% aqueous solution. 1 1 , as described in the first item of the patent application scope The method for activating the surface of the electron emission source of the emission display (2), wherein the normal temperature viscosity of the coating is controlled below 1000° C. 1 2 , the method for activating the surface of the electron emission source of the field emission display as described in claim 1 (2) Wherein, the viscosity of the coating after heating is controlled to be less than 500 cps. 1 3 . The method for activating the surface of an electron emission source of a field emission display according to claim 1 of the patent application ( a method of forming a surface emission of an electron emission source of a field emission display according to claim 1 (2), wherein the sticker has a specific thickness of 0.1 to 0.5 mm. The coating stripping system utilizes a drum type stripping device, and the method for activating the surface of the electron emission source of the field emission display according to the first aspect of the patent application (2), wherein the cathode plate after coating is applied Bake at 1 0 ~ 80 °C for 1 〇~2 0 minutes to cure the coating. 1 6 . The method for activating a surface of an electron emission source of a field emission display according to claim 1 , wherein a residual portion of the solvent remains in the electron emission source layer of the cathode plate after the film is removed. Then, it was baked at 60 to 80 ° C for 10 to 20 minutes to thoroughly remove excess ethanol solvent. Page 17 9|· ^ 1322998 . » Schema Page ι1