TW200535893A - Field emission display device structure with reflection layer and gate electrode - Google Patents

Abstract

This invention relates to a field emission display (FED) device structure with a reflection layer and a gate electrode, which has a gate electrode supporting device with a reflection layer applied FED, is an improved application of the conventional FED with a gate electrode, and is characterized in improving the conventional FED. A gate electrode is provided on the cathode side of the insulation supporting device with a reflection layer applied to FED, in which the gate electrode layer is made from the metal mask. Therefore, in addition to serving support and reflection features of the supporting device applied to FED, the gate electrode function is equipped together with advantages of improving yield of assembly process and reducing assembly equipment cost. The FED structure comprises a cathode structure containing an electron emitting source layer and a cathode substrate; and an anode structure containing a fluorescent powder layer and an anode substrate.

Description

200535893 V. Description of the invention (1) D carbon [Technical field to which the invention belongs] The present invention relates to a kind of isplay; FED) with gate structure = not (Fleld Emission nano tube is an electron emission source layer p = work Technology, especially one that can be applied to the previous technology] Prepared display manufacturing technology. Flat panel display (FPD) type display (TFT-LCD), plasma display = emission display (FED), liquid crystal display (0LED), liquid crystal The common characteristics of the projection display ~,-organic light emitting diode display, according to the flat display = cry light, thin are these flat displays in small size panels such as mobile phones; some have different characteristics, some can be applied to the screen, TV screen; or the application & super-use for the development of medium and large size such as the computer's various flat panel display technology, j size such as outdoor digital signage. Picture, and increase the service life and other characteristics The so-called field emission display crying county is due to its self-illumination: Come, Xing's flat-panel display performance, plus a wider viewing angle; = LCD can have better brightness Wide temperature and other characteristics, and the resulting ί, low, fast response, operating ^ (CRT), ^ ^ ^ ^ ^ ^ gland% & ^ ^ Radial Ray Officer (CRT) light, thin, plus ί = Nanometer tube? The application of the tube is bound to promote its development: At least spoons of two f = Τ% emission display Refer to the first figure, its structure ^ ^ ^ urgent structure 0a and cathode structure 2 0 a in one In the unit structure, J = set with insulation support (or _θγ) ι5 & provide the space between l '. ^ And the vacuum region between the early cathode and the support between the anode structure core and the cathode structure 20a. Prevents two big sides in the display

200535893 V. Description of the invention (2)-The plate collapses. As shown in the first figure, an anode structure 103 includes at least an anode glass substrate 11a, an anode conductive layer 12a, and a phosphor powder layer (ph0sph). 〇N layer) 13a 'and a cathode structure 20a includes at least a cathode glass substrate 21a, a cathode conductive layer 22a, an electron emission source layer 23a, a dielectric layer 2 4a', and a gate layer 2 5a; The interval between the anode structure 10 and the cathode structure 20a in each unit is configured by the insulating support device i 5a. Its function is to maintain the vacuum area between the cathode structure and the anode structure and is provided by the anode conduction ^ 1 2a. The high voltage causes the electron emission source layer "a" on the cathode structure 20a to generate electrons and emit it to the fluorescent powder layer 13a on the anode structure 10a to excite the powder. In addition, the so-called cathode structure described above 2〇a's cathode conductive sound 2 is configured by parallel side-by-side cathode conductors. The gate conductors are arranged in parallel. The arrangement of the two conductors is mutually mutual. Providing a voltage between the gate layer and the cathode electrode layer to form an electric field, The vertical arrangement relationship of the electron beam wire that draws the electron emission source by the gate electrode, so as to achieve the single beam and the Λ line Λ line and the cathode electrode system, in order to achieve the purpose of dynamic day-time presentation, the control of the emission source was turned off. In the mobile, the vacuum device will emit electrons in the field so that the electrons get a good vacuum. At the same time, the electron emission source and the glory path should be avoided. The electrons have enough energy to impact the glare powder. Poisoning is also provided. Refining f K hemp ten r, so there needs to be a proper gap between the two plates, iD: 1% of the electrode layer, a high voltage, beginning with sufficient acceleration energy to impact the phosphor, 1 / and the lead The pen beam has a luminous effect. To achieve the full production of fluorescent powder. Known techniques. For the production of these structures, a thin film lithography process is used.

200535893 V. Description of the invention (3), it is possible to finely fabricate micron-sized structures, but since the production is difficult to achieve the goal of mass production with complicated manufacturing procedures, in recent years, a gate grid cover 4 6 'structure is set, such as The structure shown in the second figure is applied to a field emission display. The structure shown in the third figure, because the gate is made of a metal mesh cover 46, instead of the conventional method of making the photolithography on the cathode plate. 'The gate grids can be regarded as a separate element arranged between the cathode plate 2' and the anode plate 1, with the cathode 'using a dielectric layer (with a barrier rib effect) 24 as The gap between the electrode layers and the support. The anodes are spaced by supporting devices (S pacer) 3 '. These branches are provided in a vacuum environment to prevent the collapse of the yin and yang panels and form a vacuum area. As a cathode electron emission source, the path of the electron beam is generated to strike the anode powder layer to emit light. The supporting devices of Lu Ran are arranged at a fixed interval, and the gate net cover 4 6 is usually made by a thickness of 5 0 // m to 2 0 0 # m cover gate wires 4 6 丨, composed of thin sheets, so operate in the circuit configuration, because the circuit mostly oscillates with a kind of pulse union rate, it is easy to cause this gate net cover to have a resonance effect At this time, the field emission display often resonates with the sound and affects the performance of the picture. In recent years, a new type of insulating material panel-shaped support device was often introduced into the inner space of the LCD flat panel. Use, please refer to the structure shown in the eleventh hanging picture. The expansion coefficient of this material is similar to that of broken glass. The thickness of the panel can be 50 0 // m to 15 0 0 / zm, and it can be engraved with money to cover the number of pores. 42. The pore pinch can already meet the needs of the matrix array of cathode and anode units for current field emission display, so it can also be considered as a support device between the cathode and anode of the field emission display. Because the conventional support devices are mostly glass balls or cross-shaped glass ^

200535893 V. Description of the invention (4) Or use a am-shaped support to adhere to the cathode or anode, because of the two and two M-fixing agent and then adhere to the anode structure < and! After attaching the fixing agent, or the cathode structure, and then through the pot one, the deer, the scorpion, the anchoring device is fixed, and the process is completed, without affecting the writing; The appearance of the day surface needs to be introduced in w 2. The scale of the support $ is mostly built in the process; Second, its appearance size is quite small, so the appearance of the branch equipment known to the agency is 3 degrees of f: In:-. The process is complicated: from; The planting support device requires precise archaic ,,, and hunting = the height of the adsorption equipment or transfer equipment. 2. Supporting device alignment and implementation are complicated and difficult to raise. It is necessary to dip the slurry to make it easy to produce the agent. ^: Due to the conventional support, the slurry is fixed on the panel, and then it must be heated. The installation of the dip-selective device is completed on the device. It is fixed and sealed, and the dip-stick will be burned with high temperature needles, which will cause the dip-stick to form a source of pollution to the panel, and the panel will cause a second two: the solvent in the dip. Evaporation will inevitably be installed on the pore support = 二 =. Therefore, if the aforementioned so-called insulation totem matrix is used. Eryi solves the above problems, and can greatly reduce the process to become the ancestor of this applicant. It can be modified. The patent design is a reflection of the installation of an insulation support device. As shown in Figure 11, the insulation support device 38

Support on the display = 'In addition to using the insulating support device for field emission, the support device is compared to = and can improve the luminous efficiency of the fluorescent powder, and the time-consuming installation of the support device 20 is easy to implement, There is no need to use a high-cost layer of supporting devices. The company :, ', according to this, the inventor uses this reflection port to describe the so-called gate grid to make a reflective

200535893 V. Description of the invention (5) '' ~~ ------ _ The gate support device of the emitter layer, in addition to the brightness enhancement effect of the aforementioned applicant, and combined with the support and addition of Yi wood With the implementation of the device of the present invention, it is easier to fabricate the cathode and anode in the production field. -. Han Chi is still more than [invention content] In view of the drawbacks of the gate grid resonance made by conventional techniques, it still needs to be overcome. Cathode = pole supporting effect, and can improve inter-oscillation = as a place, can be installed in a kind of insulation with reflective layer = soil support to form the structure of the present invention. …. Gate grid cover Another object of the present invention is to provide a device that can be manufactured independently, with low cost and high yield. The Japanese gate support device has another object of the present invention, which is to simplify the fabrication of the present invention, and to identify the right pole, the σ structure, and the% pole structure at the second place. To prepare and match 5 field emission display structures according to the present invention. In order to achieve the above-mentioned so-called objectives, the present invention is a gate supporting device of the present invention, which has a plurality of transparent types =: a reflective layer to correspond to the anode, at which the plurality of poles are located; The free-pole network of the polar wires is vertically aligned in a corresponding female configuration; ： It is parallel and parallel, and directly corresponds to the cathode wire of the cathode electrode layer. The gate wire can be provided with a plurality of through holes. The cathode is charged to allow the cathode electron beam of each unit to pass through to generate the corresponding unit of the electron beam, or through the through holes of the edge plate of the powder layer of two adjacent adjacent wires c to draw the corresponding cathode Electron emission source II: Early 70's abutting the field emission of the gate supporting device with reflective layer of the present invention, including (as in the tenth figure). · Cathode structure 2, with cathode barrier wall structure electron emission source layer 23, cathode The electrode layer 22 and the cathode substrate 21; and 1, having an anode barrier wall (i " ib) 14, an anode electrode layer 12, with a layer 1 3 and an anode substrate 1 1; and a support with a reflective layer 44 of the present invention ^ Among them The cathode structure has a cathode barrier wall 24, which is located on the cathode plate and M and a gate support t with a reflective layer are provided with a gate 46-side spaced apart. The thickness of the cathode barrier wall 24 is a gate. Determining factors of electric field between electrode 46 and cathode electrode layer 22, and control gate 4 6 It draws the cathode electron emission source layer 2 3, and provides a reference for the driving circuit design, instead of the dielectric layer 24a of the conventional structure. Its T anode structure has the anode barrier wall 14 added in the present invention to provide The reflective gate layer supporting device phase of the invention with the reflective layer 44 side spaced from each other is used as the air conduction path of the vacuum process. ~ To allow your reviewers to further understand the features and technologies of the present invention. "Qing Ling" Read the following detailed description and drawings of the present invention, but the drawings are provided for reference and illustration purposes only, and are not intended as a reference to the present invention. Those who restrict the invention 'other' other purposes and advantages, for those skilled in the art, will become clear after referring to the drawings and the detailed description of the invention later. ^ [Embodiment] The present invention is a structure with a reflective layer, a gate and a supporting device.

Page 10 200535893 V. Description of the invention (7) ^^ The fourth to sixth figures show that the three kinds of insulation support devices every 4 2 only know the evil, and its structure includes at least a plurality of through holes. As the gap support of the cathode plate and anode plate, the diameter is doubled; a reflective layer 44 is provided on the anode side # 1 of the mobile road sign providing the electrons in the corresponding units between the poles, corresponding to the field emission Brightness is added, and the glory powder which is adjacent and fired by the reflective anode plate is illuminated to increase the thickness ^ * The surrounding area of the emission layer is set as an invalid area, which is provided for alignment and twisting the gate mesh cover. ^ The other side of the device-Yu Jue 'Yuan branch # 装置 38-structure ^ inter-sentence electrode layer 4 6, the gate layer is composed of a plurality of gate wires 4 6 1

t. The first kind of gate grid is etched from a metal panel. There are a plurality of through holes in the gate V line, and each of these holes corresponds to a plurality of $ holes of the insulating support device. The gate wires are arranged in parallel. It is perpendicular to the corresponding cathode electrode wire. Second, consider the schematic structure shown in the fourth figure. The gate grid of the second aspect is also etched from the Shu panel, which is made of two adjacent gate wires. A wire unit is formed, and two adjacent wires are provided with pores corresponding to the transparent array of the insulating support device and arranged straight with the cathode wire. Please refer to the schematic, ', σ structure shown in the fifth figure. This kind of structure is composed of a metal wire and a support frame. The gate conductor in the support frame is also a pair of adjacent gate conductors to form a conductor unit. The two adjacent conductors are insulated correspondingly. The through-hole array of the supporting device is arranged straight with the cathode wire. Please refer to the schematic structure shown in the sixth figure. With reference to the field emission display device of the present invention, refer to the fourth to tenth figures. The structure includes at least an anode structure 1 and a cathode structure 2 in a unit structure. A reflective layer of the present invention is provided between the anode and the cathode. The gate support clusters are provided to provide the space between the vacuum regions between the cathodes of the unit anode and the unit and serve as anodes. 200535893 V. Description of the invention (8) Support between structure 1 and cathode structure 2. An anode structure 1 includes at least an anode. (Glass) substrate 1 1, an anode conductive layer 12, 2, a phosphor powder layer (phosphors 1 ayer) 1 3 ', an anode barrier wall 1, 4 and the barrier wall 14 are arranged between the phosphor powder layers at intervals. ; And a cathode structure 20 includes at least a cathode (glass) substrate 21, a cathode electrode layer 22, an electron emission source layer 2 3, a cathode barrier wall 24, and a barrier wall 24 arranged at intervals of electron emission Between the source layers 2 and 3, wherein the so-called cathode wire layers are arranged in parallel with a plurality of cathode wires and perpendicular to the gate wires, an electron emission source material is arranged on the cathode wires to form an electron emission source layer 2 3; Supporting device 3, 8 One side with the reflective layer 44 corresponds to the anode, and the anode barrier wall 14 is spaced. The anode barrier wall 14 corresponds to the adjacent area of each of the pores 42 on the support device of the present invention to form one or two areas as a vacuum. The gas conduction path of the process. The gate layer on the other side of the branch device 38 corresponds to the cathode. The gate layer and the cathode are supported by a cathode barrier wall 24. The gate conductor 46 1 is arranged perpendicular to the cathode conductor. To provide for the acquisition and control of the electron beam of each unit.

The supporting device 38 with a reflective layer 44 of the present invention is an insulating glass plate with a number of through holes 4 2 which has been prepared, and a reflective layer 44 is formed on one of the insulating glass plates by evaporation or sputtering. Side, on the other side of the insulating glass plate, paste the gate mesh cover 'the gate mesh cover before cutting is shown in Figures 7-9, and select an expansion coefficient similar to the material of the insulating support device The metal net cover material shakes, each net cover includes an effective application area, and an invalid removal area. The invalid removal area is used as a connection and support. This makes it easy to implement the lazy electrode cover and insulation support device. The covering area is affixed to the insulating support device 3 8 ′, which is composed of covering the gate wires 4 6 1. The covering process can be organic.

200535893 V. Description of the invention (9) The glue is adhered to the glass glue, and the semi-finished product after the covering is removed by a cutting device to remove the invalid area of the gate mesh cover, so that the gate wire can be an independent control wire. The field emission display structure manufacturing method of the gate support device with a reflective layer of the present invention includes: one, one side of the electron emission source (carbon nanotube layer) 36 of the cathode structure 20 or one anode structure 1 〇 One side of the fluorescent powder layer 丨 3 is made of ribs 24 and 14 of a cathode and an anode, and the cathode barrier wall 24 and the anode barrier wall 14 are arranged at positions corresponding to the reflective layer 4 4 and the gate layer 4 6 Between each of the covering holes 42 to support and isolate the cathode and anode structure. Second, apply organic glue to the fixed positions in the edge invalid area 4 3 (as shown in Figure 11) of the present invention. And fixing agent, organic glue (such as UV glue) is used for false fixing. The supporting device 3 of the present invention is first fixed between the yin and yang plates. The organic glue will be oxidized and removed during the sintering process. It is a glass glue, which can fix the support device 3 of the present invention between the cathode and anode structures 2 during the high temperature sintering process. Third, refer to the alignment mark provided on the insulation support device 38 of the present invention, and set the cathode structure 2 and the anode structure. 1 and the insulation support device 3 of the present invention are accurately aligned, and accordingly, the Each anode and cathode unit of the pole structure is aligned with each of the covered through holes of the present invention. First, the aforementioned so-called organic glue is used for false fixing, or a clamping tool is used for temporary fixing. Fourth, the semi-finished product after the fixing is subjected to high temperature. By sintering, the supporting device 3 of the present invention is fixed to the cathode and anode structures 1 and 2. As shown in the fourth to sixth figures, the present invention uses a glass plate with a plurality of holes having the same expansion coefficient as that of the cathode and anode glass substrates as an insulating layer to support 38, and a metal mesh cover as the gate layer. 46, the external dimensions are according to the field ^ = a design, a plurality of alignment marks are made at the alignment reference position, and the second package =

Page 13 200535893 V. Description of the invention (10) Reference of anode and anode structure alignment. The ineffective area 43 of the non-through-hole array configuration of the present invention can be provided with a glue coating area and a fixing area, and a UV glue is coated as an organic glue for the purpose of false fixing. A glass glue is applied as a glue in a fixing area. The embodiment is to align the cathode and anode structures by referring to the registration mark, and finally, the cathode and anode plates are packaged and bonded.

The field emission display structure of the gate support device with a reflective layer of the present invention can further include the following detailed characteristics; the present invention can further include a reflective layer 4 4 between the insulating glass plate 38 and the anode barrier wall 4 And the reflective layer 44 faces the phosphor layer 1 1; further comprising a gate layer between the insulating glass plate 38 and the cathode barrier wall 24; wherein the phosphor layer 丨 丨 may be a net: or The electron emission source layer 23 can be coated by spray printing, and the electron emission source layer 23 can be coated by screen printing or spraying. The electron emission source layer 23 can include a modified nanometer tube with high electrons. Emissivity, and wherein the reflective structure may have a number of pores 42, each of the electron emission source layers 23 is located in the pores 42; its 11? F-pole barrier wall 14 may be located between the reflective structure and the anode, and the The anode can :; the upper 4Γ forms a gas-conducting path to communicate with each pore, and the anode barrier wall 14 is transmitted by ::: process or screen printing totem production; where the cathode barrier wall L closed electrode layer and the cathode electrode layer The gap and the thickness of the barrier wall are determined]: J-mode Cathode barrier # 24 series can be micro-worked; according to ί! Ming can make the production of inter-electrode can be used-metal net army, νϊ:! Material expansion coefficient is similar to glass substrates can be 1 " " 〇 Polar structure w Γ Reflective layer can be It is a film or film; the anode structure and the anode and cathode can be sintered with a fixing glue containing slope glass; the insulation

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200535893 V. Description of the invention (11) The expansion coefficient of the glass plate is 8 2x 1 0 to 8 6χ 1 0 _V ° C; wherein the thickness of the anode barrier wall can be 50 // m to 100 // m, that is, The thickness of the cathode barrier wall can be matched with the high-efficiency, low-start-voltage nano-carbon tube electron emission source layer used in the present invention, and the thickness can be made 30 to 60 μm, Can be used with 80 V drive voltage circuit design. -Based on the above detailed disclosure and verification, the advantages of the present invention are as follows: 1. It is simple to manufacture, 1. The device of the present invention can be applied to a large number of process requirements; 3. The requirements for light-weight equipment and material costs are greatly reduced. In summary, the present invention can indeed achieve the intended use, and is novel and progressive. It fully meets the requirements for invention patent applications. It is filed in accordance with the Patent Law. ^ Please check and approve the patent in this case to ensure protection. Inventor's rights. Lu: The above description is only the preferred and feasible embodiment of the present invention, and the patent scope of this meal is not limited because of this. Therefore, any changes in the structure of the temple effect that are applied to the description and drawings of the present invention are included in the same reason. Within the scope of the invention, in order to protect the rights and interests of the inventor, hereby.

Page 15 200535893 The diagram briefly illustrates the first picture, the structure of the conventional field emission display; the second picture, the structure of the conventional gate net cover is not intended, the third picture, the schematic view of the field emission display using the gate grid; The fourth to sixth figures, the support device with a reflective layer and the gate of the present invention, the seventh to the ninth diagrams, the three gate mesh covers adopted; the tenth diagram, the field emission display of the present invention; And Fig. 11 is a component insulation support device of the present invention. [Element symbol description] Anode structure 10a Anode glass plate 11a Anode conductive layer 12a Fluorescent powder layer 13a Insulating support device 15a Cathode structure 20a Cathode glass plate 21a Cathode conductive layer 22a Electron emission source layer 2 3a Dielectric layer 24a Gate layer Anode plate 25a 1, cathode plate 2, dielectric layer 24 'support 3, gate grid 46' gate wire 461, anode structure 1 anode substrate 11 anode electrode layer 12 fluorescent powder layer 13 anode barrier wall 14 cathode Structure 2 Cathode substrate 21 Cathode electrode layer 22 Electron emission source layer 23 Cathode barrier wall 24 Support device 38 Pore 42

Page 16 200535893 Brief description of the drawing Reflective layer Gate wire 44 461 Gate layer 46

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Claims (1)

200535893 6. Scope of patent application 1. A% emission display device with a reflective layer and a gate electrode is approved, including a cathode structure with an electron emission source layer and a cathode substrate; and an anode structure with a fluorescent powder layer and an anode. Substrate; 'wherein the cathode structure has a cathode barrier wall, which is located above the cathode substrate-and between the lateral intervals of the electron emission source layer; · wherein the cathode structure has a gate electrode' which is composed of a metal mesh cover and is located at the electrode Above the barrier wall; K wherein the field emission display structure further has a supporting device, which is located between the metal mesh cover and the anode structure, and has a reflective layer facing the anode side, and the reflective layer has a reflection of the fluorescent powder The ability of the layer to emit light. θ · 2. The field emission display structure with a reflective layer and a gate electrode as described in item 1 of the scope of the patent application, wherein the reflective layer is the phosphor powder layer. 3. The structure of a field emission display with a reflective layer i gate as described in item 1 of the scope of the patent application, wherein the fluorescent powder layer is a screen-printed or spray-coated cold cloth. 4. The structure of a field emission display with a reflective layer and a gate electrode as described in item 1 of the scope of the patent application, wherein the electron emission source layer is coated by screen printing or spray coating. 5. The field emitter structure with a reflective layer and a gate electrode as described in item 丨 of the scope of the patent application, wherein the electron emission source layer includes a modified carbon nanotube and has a high electron emission. rate. 6, 6. The field with a reflective layer and a gate electrode as described in item 2 of the scope of the patent application. ♦ The emitter structure, wherein the reflective layer and the supporting device have a plurality of holes. Page 18 200535893 VI. Scope of patent application One 'One " ~~ One'-^ —— Yan Yong, ~ & * —Ancient Girl Association * 7 The source layer of Qiao's son Qiao is located in the pore. The emission shows a field with a reflective layer and a free pole as described in item 6 of Patent Application ^ Patent Fanwei. The anode is between the anodes, and it is visited-one has an anode barrier located on the reflective layer. = An air-conducting path formed between the walls connects each pore. /, The emission display constructs a lunar pot to make a profit basin, and the field with a reflective layer and a gate electrode described in item 2 9. If Shenxin σ ′, the medium δ meta-reflective layer is a shaw film or a chromium film. The field display process or screen printing with reflective layer and gate electrode described in Item 7 of the scope of the patent, including the cathode barrier wall and anode barrier wall can be lithographed. Can be made of glass. Field emission shows crying: The glass-containing material t ^ ′ with reflective layer and gate electrode described in the first scope of the patent is used for the sintering of the anode glue and cathode structure. τ Indian penny said π h 9 female patent application scope described in item 1 and right; 5 4 + 厣 "pq J% narrative shows cry rb ^ ir Μ-, with reflective layer and gate V. ™ structure k, where § the expansion coefficient of the metal mesh is 10- to 10-ν field emission: 2 display patents; the said has a reflective layer and the m of the pole. , Is a structure, in which the thickness of the metal mesh cover is 50 / zm to 10 porosity, and the structure with a reflective layer * leisure electrode described in the scope of the patent application 胄 1, where = belongs to the mesh cover material is iron The structure of the nickel alloy field emission display, wherein the number of the reflective layer and the gate electrode of the supporting device is 8 2 X 1 0 to 8 6 X ^ 〇 (where. The material can be a glass plate expansion system Page 19