TWI489507B - Field emission device and field emission display - Google Patents
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本發明涉及一種場發射電子器件及場發射顯示裝置，尤其涉及一種平面型場發射電子器件及場發射顯示裝置。The invention relates to a field emission electronic device and a field emission display device, in particular to a planar field emission electronic device and a field emission display device.
場發射電子器件在低溫或者室溫下工作，與熱電子發射器件相比具有功耗低、回應速度快以及低放氣等優點。場發射電子器件在場發射顯示裝置中具有廣泛的應用。Field emission electronics operate at low temperatures or at room temperature, and have the advantages of low power consumption, fast response, and low bleed compared to thermal electron-emitting devices. Field emission electronics have a wide range of applications in field emission display devices.
先前技術中的場發射顯示裝置包括一絕緣基底、複數個畫素單元、以及複數個行電極引線與複數個列電極引線。其中，所述複數個行電極引線與複數個列電極引線分別平行且等間隔設置於絕緣基底表面。所述複數個行電極引線與複數個列電極引線相互交叉設置，且每兩個相鄰的行電極引線與兩個相鄰的列電極引線形成一網格。所述複數個畫素單元按照預定規律排列，間隔設置於上述網格中，且每個網格中設置一個畫素單元。所述畫素單元包括一陰極電極，一設置於該陰極電極表面的電子發射體，一與該陰極電極間隔設置的陽極電極，以及一設置於該陽極電極表面的螢光粉層。當在該陰極電極與陽極電極之間施加一電壓，電子發射體發射電子，以轟擊螢光粉層發光。The field emission display device of the prior art includes an insulating substrate, a plurality of pixel units, and a plurality of row electrode leads and a plurality of column electrode leads. Wherein, the plurality of row electrode leads and the plurality of column electrode leads are respectively disposed in parallel and equally spaced on the surface of the insulating substrate. The plurality of row electrode leads and the plurality of column electrode leads are disposed to intersect each other, and each two adjacent row electrode leads and two adjacent column electrode leads form a grid. The plurality of pixel units are arranged according to a predetermined rule, and are arranged at intervals in the grid, and one pixel unit is disposed in each grid. The pixel unit includes a cathode electrode, an electron emitter disposed on the surface of the cathode electrode, an anode electrode spaced apart from the cathode electrode, and a phosphor layer disposed on the surface of the anode electrode. When a voltage is applied between the cathode electrode and the anode electrode, the electron emitter emits electrons to illuminate the phosphor layer.
然而，上述場發射顯示裝置中，由於每個象素單元僅包括一個陰極電極和一個陽極電極間隔設置，故，該場發射顯示裝置的電子發射效率較低，從而使得場發射顯示裝置亮度較差。However, in the field emission display device described above, since each pixel unit includes only one cathode electrode and one anode electrode spaced apart, the electron emission efficiency of the field emission display device is low, so that the field emission display device is inferior in brightness.
有鑒於此，提供一種電子發射效率較高的場發射電子器件和具有較高亮度的場發射顯示裝置實為必要。In view of the above, it is necessary to provide a field emission electronic device having high electron emission efficiency and a field emission display device having high luminance.
一種場發射電子器件，包括：一絕緣基底具有一表面；複數個行電極引線與複數個列電極引線分別平行且間隔設置於所述絕緣基底的 表面，該複數個行電極引線與複數個列電極引線相互交叉設置定義複數個交叉處和複數個網格，所述行電極引線與列電極引線在交叉處電絕緣設置；以及複數個電子發射單元設置於絕緣基底表面，且每個電子發射單元對應設置於一個交叉處，其中，所述每個電子發射單元進一步包括：一第二電極與所述列電極引線電連接；一第一電極與該第二電極間隔設置且至少部分環繞所述第二電極設置，該第一電極與所述行電極引線電連接，且該第一電極的厚度大於所述第二電極的厚度；以及複數個電子發射體設置於所述第一電極和所述第二電極中的至少一個電極的表面。A field emission electronic device comprising: an insulating substrate having a surface; a plurality of row electrode leads and a plurality of column electrode leads being respectively parallel and spaced apart from the insulating substrate a surface, the plurality of row electrode leads and the plurality of column electrode leads intersecting each other to define a plurality of intersections and a plurality of grids, the row electrode leads and the column electrode leads being electrically insulated at intersections; and a plurality of electron emission units And disposed on the surface of the insulating substrate, and each of the electron-emitting units is disposed at an intersection, wherein each of the electron-emitting units further includes: a second electrode electrically connected to the column electrode lead; a first electrode and the a second electrode is disposed at least partially and at least partially disposed around the second electrode, the first electrode is electrically connected to the row electrode lead, and a thickness of the first electrode is greater than a thickness of the second electrode; and a plurality of electron emission The body is disposed on a surface of at least one of the first electrode and the second electrode.
一種場發射電子器件，包括：一絕緣基底具有一表面；複數個行電極引線與複數個列電極引線分別平行且間隔設置於所述絕緣基底的表面，該複數個行電極引線與複數個列電極引線相互交叉設置定義複數個交叉處和複數個網格，所述行電極引線與列電極引線在交叉處電絕緣設置；以及複數個電子發射單元設置於絕緣基底表面，且每個電子發射單元對應設置於一個交叉處，其中，所述每個電子發射單元進一步包括：一第二電極與所述列電極引線電連接；一第一電極與該第二電極間隔設置且至少部分環繞所述第二電極設置，該第一電極與所述行電極引線電連接，且該第一電極的高度大於所述第二電極的高度；以及複數個電子發射體設置於所述第一電極和所述第二電極中的至少一個電極的表面。A field emission electronic device comprising: an insulating substrate having a surface; a plurality of row electrode leads and a plurality of column electrode leads respectively disposed parallel to and spaced apart from a surface of the insulating substrate, the plurality of row electrode leads and a plurality of column electrodes The lead wires are arranged to cross each other to define a plurality of intersections and a plurality of grids, the row electrode leads and the column electrode leads are electrically insulated at the intersection; and the plurality of electron emission units are disposed on the surface of the insulating substrate, and each of the electron emission units corresponds to Provided at an intersection, wherein each of the electron-emitting units further comprises: a second electrode electrically connected to the column electrode lead; a first electrode spaced apart from the second electrode and at least partially surrounding the second An electrode is disposed, the first electrode is electrically connected to the row electrode lead, and a height of the first electrode is greater than a height of the second electrode; and a plurality of electron emitters are disposed on the first electrode and the second The surface of at least one of the electrodes.
一種場發射顯示裝置，其包括：一絕緣基底具有一表面；複數個行電極引線與複數個列電極引線分別平行且間隔設置於所述絕緣基底的表面，該複數個行電極引線與複數個列電極引線相互交叉設置定義複數個交叉處和複數個網格，所述行電極引線與列電極引線在交叉處電絕緣設置；以及複數個畫素單元設置於絕緣基底表面，每個電子發射單元對應設置於一個交叉處，其中，每個畫素單元包括：一陽極電極與所述列電極引線電連接；一陰極電極與該陽極電極間隔設置且至少部分環繞所述陽極電極設置，該陰極電極與行電極引線電連接，且該陰極電極的厚度大於所述陽極電極的厚度；複數個電子發射體設置於所述陰極電極表面且至少部分環繞所述陽極電極設置；以及一螢光粉層設置於該陽極電極表面。A field emission display device comprising: an insulating substrate having a surface; a plurality of row electrode leads and a plurality of column electrode leads respectively disposed parallel to and spaced apart from a surface of the insulating substrate, the plurality of row electrode leads and a plurality of columns The electrode leads are arranged to cross each other to define a plurality of intersections and a plurality of grids, the row electrode leads and the column electrode leads are electrically insulated at the intersection; and the plurality of pixel units are disposed on the surface of the insulating substrate, and each of the electron emission units corresponds to Arranging at an intersection, wherein each pixel unit comprises: an anode electrode electrically connected to the column electrode lead; a cathode electrode spaced apart from the anode electrode and at least partially surrounding the anode electrode, the cathode electrode and The row electrode leads are electrically connected, and the thickness of the cathode electrode is greater than the thickness of the anode electrode; a plurality of electron emitters are disposed on the surface of the cathode electrode and at least partially disposed around the anode electrode; and a phosphor layer is disposed on The anode electrode surface.
一種場發射顯示裝置，其包括：一絕緣基底具有一表面；複數個行電極引線與複數個列電極引線分別平行且間隔設置於所述絕緣基底 的表面，該複數個行電極引線與複數個列電極引線相互交叉設置定義複數個交叉處和複數個網格，所述行電極引線與列電極引線在交叉處電絕緣設置；以及複數個畫素單元設置於絕緣基底表面，每個電子發射單元對應設置於一個交叉處，其中，每個畫素單元包括：一陰極電極與所述列電極引線電連接；一陽極電極與該陰極電極間隔設置且至少部分環繞所述陰極電極設置，該陽極電極與行電極引線電連接，且該陽極電極的厚度大於所述陰極電極的厚度；一螢光粉層設置於該陽極電極表面且至少部分環繞所述陰極電極設置；以及複數個電子發射體設置於所述陰極電極表面。A field emission display device comprising: an insulating substrate having a surface; a plurality of row electrode leads and a plurality of column electrode leads being respectively parallel and spaced apart from the insulating substrate a surface, the plurality of row electrode leads and the plurality of column electrode leads intersecting each other to define a plurality of intersections and a plurality of grids, the row electrode leads and the column electrode leads being electrically insulated at intersections; and a plurality of pixels The unit is disposed on the surface of the insulating substrate, and each of the electron emitting units is disposed at an intersection, wherein each pixel unit includes: a cathode electrode electrically connected to the column electrode lead; an anode electrode is spaced apart from the cathode electrode and At least partially surrounding the cathode electrode, the anode electrode is electrically connected to the row electrode lead, and the anode electrode has a thickness greater than a thickness of the cathode electrode; a phosphor layer is disposed on the anode electrode surface and at least partially surrounds the anode electrode A cathode electrode is disposed; and a plurality of electron emitters are disposed on the surface of the cathode electrode.
相較於先前技術，所述場發射電子器件的一電極至少部分環繞另一電極設置，且複數個電子發射體設置於至少一個電極的表面，從而使得場發射顯示裝置具有較高場發射電流，且採用該場發射電子器件的場發射顯示裝置具有較高的亮度。另外，所述一個電極的厚度大於另一個電極的厚度，可以防止相鄰電子發射單元或畫素單元之間的電場干擾。Compared with the prior art, one electrode of the field emission electronic device is disposed at least partially around the other electrode, and a plurality of electron emitters are disposed on the surface of the at least one electrode, so that the field emission display device has a higher field emission current. And the field emission display device using the field emission electronic device has higher brightness. In addition, the thickness of the one electrode is greater than the thickness of the other electrode, and electric field interference between adjacent electron-emitting units or pixel units can be prevented.
200,300,400,500,600,700‧‧‧場發射顯示裝置200,300,400,500,600,700‧‧‧ field emission display device
202,302,402,502,602,702‧‧‧絕緣基底202,302,402,502,602,702‧‧‧Insulation base
204,304,404,504,604,704‧‧‧行電極引線204, 304, 404, 504, 604, 704‧ ‧ row electrode leads
206,406,606‧‧‧列電極引線206,406,606‧‧‧ column electrode lead
208,308,408,508,608,708‧‧‧電子發射體208,308,408,508,608,708‧‧‧Electronic emitters
210,310,410,510,610,710‧‧‧第二電極210,310,410,510,610,710‧‧‧second electrode
3102,5122‧‧‧承載面3102, 5122‧‧‧ bearing surface
212,312,412,512,612,712‧‧‧第一電極212, 312, 412, 512, 612, 712 ‧ ‧ first electrode
214‧‧‧交叉處214‧‧‧ intersection
216‧‧‧介質絕緣層216‧‧• dielectric insulation
218,318,418,518,618,718‧‧‧螢光粉層218,318,418,518,618,718‧‧‧Fluorescent powder layer
220,320,420,520,620,720‧‧‧畫素單元220,320,420,520,620,720‧‧‧ pixel elements
222,322,422,522,622‧‧‧電子發射端222,322,422,522,622‧‧‧Electronic transmitter
224‧‧‧固定元件224‧‧‧Fixed components
726‧‧‧第三電極726‧‧‧ third electrode
圖1為本發明第一實施例提供的場發射顯示裝置的俯視示意圖。FIG. 1 is a schematic top plan view of a field emission display device according to a first embodiment of the present invention.
圖2為圖1所示的場發射顯示裝置沿線II-II的剖面示意圖。2 is a cross-sectional view of the field emission display device shown in FIG. 1 taken along line II-II.
圖3為本發明第二實施例提供的場發射顯示裝置的結構示意圖。FIG. 3 is a schematic structural diagram of a field emission display device according to a second embodiment of the present invention.
圖4為本發明第三實施例提供的場發射顯示裝置的俯視示意圖。4 is a schematic top plan view of a field emission display device according to a third embodiment of the present invention.
圖5為圖4所示的場發射顯示裝置沿線V-V的剖面示意圖。Figure 5 is a cross-sectional view of the field emission display device shown in Figure 4 taken along line V-V.
圖6為本發明第四實施例提供的場發射顯示裝置的結構示意圖。FIG. 6 is a schematic structural diagram of a field emission display device according to a fourth embodiment of the present invention.
圖7為本發明第五實施例提供的場發射顯示裝置的俯視示意圖。FIG. 7 is a schematic top plan view of a field emission display device according to a fifth embodiment of the present invention.
圖8為圖7所示的場發射顯示裝置沿線VIII-VIII的剖面示意圖。Figure 8 is a cross-sectional view of the field emission display device of Figure 7 taken along line VIII-VIII.
圖9為本發明第六實施例提供的場發射顯示裝置的剖面示意圖。FIG. 9 is a cross-sectional view of a field emission display device according to a sixth embodiment of the present invention.
以下將結合附圖對本發明的場發射電子器件及場發射顯示裝置作進一步的詳細說明。可以理解，所述場發射電子器件及場發射顯示裝置可以包括複數個畫素單元，本發明實施例附圖僅給出部分畫素單元為例進行說明。The field emission electronic device and the field emission display device of the present invention will be further described in detail below with reference to the accompanying drawings. It can be understood that the field emission electronic device and the field emission display device may include a plurality of pixel units, and the embodiment of the present invention only gives a partial pixel unit as an example for description.
請參閱圖1、圖2，本發明第一實施例提供一種場發射顯示裝置200，其包括一絕緣基底202，複數個畫素單元220、以及複數個行電極引線204與複數個列電極引線206。Referring to FIG. 1 and FIG. 2 , a first embodiment of the present invention provides a field emission display device 200 including an insulating substrate 202 , a plurality of pixel units 220 , and a plurality of row electrode leads 204 and a plurality of column electrode leads 206 . .
所述複數個行電極引線204與複數個列電極引線206分別平行、間隔設置於所述絕緣基底202的表面。優選地，所述複數個行電極引線204與複數個列電極引線206分別平行、等間隔設置。所述複數個行電極引線204與複數個列電極引線206相互交叉設置以定義複數個交叉處214和複數個網格(圖未標)。所述複數個行電極引線204與複數個列電極引線206在交叉處214電絕緣，優選地，每個行電極引線204在交叉處214斷開。所述每個交叉處214定位一個畫素單元220。所述複數個畫素單元220對應交叉處214一一設置，從而形成一矩陣。可以理解，所述場發射顯示裝置200工作時需要封裝在一真空環境中。The plurality of row electrode leads 204 and the plurality of column electrode leads 206 are respectively disposed in parallel and spaced apart from the surface of the insulating substrate 202. Preferably, the plurality of row electrode leads 204 and the plurality of column electrode leads 206 are respectively disposed in parallel and at equal intervals. The plurality of row electrode leads 204 and the plurality of column electrode leads 206 are disposed to cross each other to define a plurality of intersections 214 and a plurality of grids (not labeled). The plurality of row electrode leads 204 are electrically insulated from the plurality of column electrode leads 206 at the intersection 214. Preferably, each row electrode lead 204 is broken at the intersection 214. Each of the intersections 214 positions a pixel unit 220. The plurality of pixel units 220 are arranged one by one corresponding to the intersections 214 to form a matrix. It can be understood that the field emission display device 200 needs to be packaged in a vacuum environment during operation.
所述絕緣基底202為一絕緣基板，如陶瓷基板、玻璃基板、樹脂基板、石英基板等。所述絕緣基底202的大小與厚度不限，本領域技術人員可以根據實際需要選擇。本實施例中，所述絕緣基底202優選為一玻璃基板，其厚度大於1毫米，邊長大於1厘米。The insulating substrate 202 is an insulating substrate such as a ceramic substrate, a glass substrate, a resin substrate, a quartz substrate or the like. The size and thickness of the insulating substrate 202 are not limited, and those skilled in the art can select according to actual needs. In this embodiment, the insulating substrate 202 is preferably a glass substrate having a thickness greater than 1 mm and a side length greater than 1 cm.
所述行電極引線204與列電極引線206為導電體，如金屬層等。本實施例中，該複數個行電極引線204與複數個列電極引線206優選為採用導電漿料列印的橫截面為矩形的平面導電體，且該複數個行電極引線204的行間距為50微米~2厘米，複數個列電極引線206的列間距為50微米~2厘米。該行電極引線204與列電極引線206的寬度為30微米~100微米，厚度為10微米~50微米。本實施例中，該行電極引線204與列電極引線206的交叉角度為10度到90度，優選地，該行電極引線204與列電極引線206相互垂直。本實施例中，通過絲網列印法將導電漿料列印於絕 緣基底202表面製備行電極引線204與列電極引線206。該導電漿料的成分包括金屬粉、低熔點玻璃粉和黏結劑；其中，該金屬粉優選為銀粉，該黏結劑優選為松油醇或乙基纖維素。其中，金屬粉的重量比為50~90%，低熔點玻璃粉的重量比為2~10%，黏結劑的重量比為8~40%。本實施例中，將所述行電極引線204的延伸方向定義為X方向，所述列電極引線206的延伸方向定義為Y方向。The row electrode lead 204 and the column electrode lead 206 are electrical conductors such as a metal layer or the like. In this embodiment, the plurality of row electrode leads 204 and the plurality of column electrode leads 206 are preferably planar conductors having a rectangular cross section printed by a conductive paste, and the row spacing of the plurality of row electrode leads 204 is 50. The micrometers are up to 2 cm, and the column spacing of the plurality of column electrode leads 206 is 50 micrometers to 2 centimeters. The row electrode lead 204 and the column electrode lead 206 have a width of 30 micrometers to 100 micrometers and a thickness of 10 micrometers to 50 micrometers. In this embodiment, the intersection angle of the row electrode lead 204 and the column electrode lead 206 is 10 degrees to 90 degrees. Preferably, the row electrode lead 204 and the column electrode lead 206 are perpendicular to each other. In this embodiment, the conductive paste is printed on the screen by the screen printing method. Row electrode leads 204 and column electrode leads 206 are prepared on the surface of edge substrate 202. The composition of the conductive paste includes metal powder, low-melting glass frit, and a binder; wherein the metal powder is preferably silver powder, and the binder is preferably terpineol or ethyl cellulose. The weight ratio of the metal powder is 50 to 90%, the weight ratio of the low melting point glass powder is 2 to 10%, and the weight ratio of the binder is 8 to 40%. In the present embodiment, the extending direction of the row electrode lead 204 is defined as the X direction, and the extending direction of the column electrode lead 206 is defined as the Y direction.
所述每個畫素單元220設置於交叉處214相鄰的至少兩個網格中。所述每個畫素單元220包括一第一電極212、一第二電極210、複數個電子發射體208、以及一螢光粉層218。所述第一電極212與第二電極210間隔設置於絕緣基底202表面，且該第一電極212至少部分環繞所述第二電極210設置。所謂“至少部分環繞所述第二電極210設置”指所述第一電極212至少部分圍繞所述第二電極210延伸，從而形成“L”形、“U”形、“C”形、半環形或環形等。優選地，所述第二電極210設置於行電極引線204與列電極引線206的交叉處214，且設置於交叉處214相鄰的四個網格中。所述第一電極212環繞第二電極210設置，也設置於交叉處214相鄰的四個網格中。所述第一電極212與列電極引線206交疊處設置有一介質絕緣層216。所述第二電極210與行電極引線204間隔設置。Each of the pixel units 220 is disposed in at least two grids adjacent to the intersection 214. Each of the pixel units 220 includes a first electrode 212, a second electrode 210, a plurality of electron emitters 208, and a phosphor layer 218. The first electrode 212 and the second electrode 210 are spaced apart from each other on the surface of the insulating substrate 202 , and the first electrode 212 is disposed at least partially around the second electrode 210 . By "providing at least partially around the second electrode 210", the first electrode 212 extends at least partially around the second electrode 210 to form an "L" shape, a "U" shape, a "C" shape, a semi-ring shape. Or ring and so on. Preferably, the second electrode 210 is disposed at an intersection 214 of the row electrode lead 204 and the column electrode lead 206, and is disposed in four grids adjacent to the intersection 214. The first electrode 212 is disposed around the second electrode 210 and is also disposed in four grids adjacent to the intersection 214. A dielectric insulating layer 216 is disposed at the intersection of the first electrode 212 and the column electrode lead 206. The second electrode 210 is spaced apart from the row electrode lead 204.
所述第一電極212作為陰極電極，且分別與交叉處214兩側斷開的行電極引線204電連接，從而使得斷開的行電極引線204電連接。所述第二電極210作為陽極電極，且與所述列電極引線206電連接。所述複數個電子發射體208設置於所述第一電極212表面，且至少部分環繞所述第二電極210設置。所述螢光粉層218設置於所述第二電極210的一表面。所述電子發射體208發射的電子可以打到螢光粉層218而使之發光。The first electrode 212 functions as a cathode electrode and is electrically connected to the row electrode leads 204 that are disconnected on both sides of the intersection 214, respectively, such that the broken row electrode leads 204 are electrically connected. The second electrode 210 functions as an anode electrode and is electrically connected to the column electrode lead 206. The plurality of electron emitters 208 are disposed on the surface of the first electrode 212 and disposed at least partially around the second electrode 210. The phosphor layer 218 is disposed on a surface of the second electrode 210. The electrons emitted by the electron emitter 208 can strike the phosphor layer 218 to illuminate.
所述第二電極210為導電體，如金屬層、ITO層、導電漿料等。所述第二電極210直接與所述列電極引線206接觸，從而實現電連接。所述第二電極210為一平面導電體，其形狀和尺寸依據實際需要決定。本實施例中，所述第二電極210為一正方形平面導電體。所述第二電極210的邊長為30微米~1.5厘米，厚度為10微米~500微米。優選地，所述第二電極210的邊長為100微米~700微米，厚度為20微米~100微米。The second electrode 210 is an electrical conductor such as a metal layer, an ITO layer, a conductive paste, or the like. The second electrode 210 is in direct contact with the column electrode lead 206 to achieve electrical connection. The second electrode 210 is a planar electrical conductor, and its shape and size are determined according to actual needs. In this embodiment, the second electrode 210 is a square planar electrical conductor. The second electrode 210 has a side length of 30 micrometers to 1.5 centimeters and a thickness of 10 micrometers to 500 micrometers. Preferably, the second electrode 210 has a side length of 100 micrometers to 700 micrometers and a thickness of 20 micrometers to 100 micrometers.
所述第一電極212為導電體，如金屬層、ITO層、導電漿料 等。所述第一電極212為一橫截面為矩形的平面導電體，其形狀和尺寸依據實際需要決定。優選地，所述第一電極212的厚度大於所述第二電極210的厚度，以防止相鄰畫素單元220之間的電場干擾。本實施例中，所述第一電極212的厚度大於所述第二電極210的厚度可以防止第二電極210的電場覆蓋到相鄰畫素單元220的第一電極212表面。本實施例中，所述第一電極212為方框形，且將所述第二電極210全部環繞。所述第一電極212的寬度為30微米~1000微米，厚度為10微米~500微米。所述第一電極212與第二電極210的材料均為導電漿料。所述第一電極212與第二電極210可通過絲網列印法列印於所述絕緣基底202表面。可以理解，所述第二電極210可以與所述列電極引線206一體列印形成。所述第一電極212可以與所述行電極引線204一體列印形成。The first electrode 212 is an electrical conductor, such as a metal layer, an ITO layer, and a conductive paste. Wait. The first electrode 212 is a planar electric conductor having a rectangular cross section, and its shape and size are determined according to actual needs. Preferably, the thickness of the first electrode 212 is greater than the thickness of the second electrode 210 to prevent electric field interference between adjacent pixel units 220. In this embodiment, the thickness of the first electrode 212 is greater than the thickness of the second electrode 210 to prevent the electric field of the second electrode 210 from covering the surface of the first electrode 212 of the adjacent pixel unit 220. In this embodiment, the first electrode 212 has a square shape, and the second electrode 210 is completely surrounded. The first electrode 212 has a width of 30 micrometers to 1000 micrometers and a thickness of 10 micrometers to 500 micrometers. The materials of the first electrode 212 and the second electrode 210 are both conductive pastes. The first electrode 212 and the second electrode 210 may be printed on the surface of the insulating substrate 202 by screen printing. It can be understood that the second electrode 210 can be integrally formed with the column electrode lead 206. The first electrode 212 may be integrally formed with the row electrode lead 204.
所述螢光粉層218設置於所述第二電極210遠離絕緣基底202的表面。所述螢光粉層218的材料可為白色螢光粉，也可以為單色螢光粉，例如紅色，綠色，藍色螢光粉等，當電子轟擊螢光粉層218時可發出白光或其他顏色可見光。該螢光粉層218可以採用沈積法、列印法、光刻法或塗敷法設置於第二電極210的表面。該螢光粉層218的厚度可為5微米至50微米。The phosphor layer 218 is disposed on a surface of the second electrode 210 away from the insulating substrate 202. The material of the phosphor powder layer 218 may be white fluorescent powder or monochromatic fluorescent powder, such as red, green, blue fluorescent powder, etc., when the electron bombards the fluorescent powder layer 218, it may emit white light or Other colors are visible. The phosphor layer 218 may be disposed on the surface of the second electrode 210 by a deposition method, a printing method, a photolithography method, or a coating method. The phosphor layer 218 can have a thickness of from 5 microns to 50 microns.
所述複數個電子發射體208設置於所述第一電極212表面，且至少部分環繞所述第二電極210設置。所述每個電子發射體208具有一電子發射端222與所述第二電極210間隔設置。優選地，所述複數個電子發射體208為設置於所述第一電極212與第二電極210之間的線狀體。所述電子發射體208的一端與所述第一電極212電連接，另一端指向所述第二電極210，並向第二電極210延伸作為電子發射端222。所述複數個電子發射體208與所述絕緣基底202間隔設置，且沿著平行於絕緣基底202表面的方向延伸。所述電子發射體208可選自矽線、奈米碳管、碳纖維及奈米碳管線等中的一種或複數種。本實施例中，所述複數個電子發射體208為複數個平行排列的奈米碳管線，每個奈米碳管線的一端與第一電極212電連接，另一端指向第二電極210表面的螢光粉層218，作為電子發射體208的電子發射端222。該電子發射端222與第二電極210之間的距離為10微米~500微米。優選地，該電子發射端222與第二電極210之間的距離為 50微米~300微米。所述電子發射體208的延伸方向基本平行於所述螢光粉層218的表面。可以理解，所述電子發射體208的電子發射端222也可以懸空設置於螢光粉層218的上方。The plurality of electron emitters 208 are disposed on the surface of the first electrode 212 and disposed at least partially around the second electrode 210. Each of the electron emitters 208 has an electron emitting end 222 spaced apart from the second electrode 210. Preferably, the plurality of electron emitters 208 are linear bodies disposed between the first electrode 212 and the second electrode 210. One end of the electron emitter 208 is electrically connected to the first electrode 212, the other end is directed to the second electrode 210, and extends toward the second electrode 210 as an electron emission end 222. The plurality of electron emitters 208 are spaced apart from the insulating substrate 202 and extend in a direction parallel to the surface of the insulating substrate 202. The electron emitter 208 may be selected from one or more of a twisted wire, a carbon nanotube, a carbon fiber, and a carbon carbon pipeline. In this embodiment, the plurality of electron emitters 208 are a plurality of parallel carbon nanotubes, and one end of each nanocarbon pipeline is electrically connected to the first electrode 212, and the other end is directed to the surface of the second electrode 210. The toner layer 218 serves as an electron emission end 222 of the electron emitter 208. The distance between the electron emitting end 222 and the second electrode 210 is 10 micrometers to 500 micrometers. Preferably, the distance between the electron emitting end 222 and the second electrode 210 is 50 microns to 300 microns. The electron emitter 208 extends in a direction substantially parallel to the surface of the phosphor layer 218. It can be understood that the electron emission end 222 of the electron emitter 208 can also be suspended above the phosphor layer 218.
所述電子發射體208一端與第一電極212的電連接方式可以為直接電連接或通過一導電膠電連接，也可以通過分子間力或者其他方式實現。該奈米碳管線的長度為10微米~1厘米，且相鄰的奈米碳管線之間的間距為1微米~500微米。該奈米碳管線包括複數個沿奈米碳管線長度方向排列的奈米碳管。該奈米碳管線可為複數個奈米碳管組成的純結構，所述“純結構”指該奈米碳管線中奈米碳管未經過任何化學修飾或功能化處理。優選地，所述奈米碳管線為自支撐結構。所謂“自支撐結構”即該奈米碳管線無需通過一支撐體支撐，也能保持自身特定的形狀。所述奈米碳管線中的奈米碳管通過凡得瓦(Van Der Waals)力相連，奈米碳管的軸向均基本沿奈米碳管線的長度方向延伸，其中，每一奈米碳管與在該延伸方向上相鄰的奈米碳管通過凡得瓦力首尾相連。所述奈米碳管線中的奈米碳管包括單壁、雙壁及多壁奈米碳管中的一種或複數種。所述奈米碳管的長度範圍為10微米~100微米，且奈米碳管的直徑小於15奈米。The electrical connection between one end of the electron emitter 208 and the first electrode 212 may be directly electrically connected or electrically connected through a conductive adhesive, or may be realized by intermolecular force or other means. The nano carbon pipeline has a length of 10 micrometers to 1 centimeter and a spacing between adjacent nanocarbon pipelines of 1 micrometer to 500 micrometers. The nanocarbon pipeline includes a plurality of carbon nanotubes arranged along the length of the nanocarbon pipeline. The nanocarbon pipeline may be a pure structure composed of a plurality of carbon nanotubes, and the "pure structure" means that the carbon nanotubes in the nanocarbon pipeline are not subjected to any chemical modification or functional treatment. Preferably, the nanocarbon pipeline is a self supporting structure. The so-called "self-supporting structure" means that the nanocarbon pipeline can maintain its own specific shape without being supported by a support. The carbon nanotubes in the nanocarbon pipeline are connected by Van Der Waals force, and the axial direction of the carbon nanotubes extends substantially along the length of the nanocarbon pipeline, wherein each nanocarbon The tube and the carbon nanotubes adjacent in the extending direction are connected end to end by van der Waals force. The carbon nanotubes in the nanocarbon pipeline include one or more of single-walled, double-walled, and multi-walled carbon nanotubes. The carbon nanotubes have a length ranging from 10 micrometers to 100 micrometers, and the carbon nanotubes have a diameter of less than 15 nanometers.
所述複數個電子發射體208可以通過列印奈米碳管漿料層或鋪設奈米碳管膜的方法製備。所述奈米碳管漿料包括奈米碳管、低熔點玻璃粉以及有機載體。其中，有機載體在烘烤過程中蒸發，低熔點玻璃粉在烘烤過程中熔化並將奈米碳管固定於電極表面。The plurality of electron emitters 208 can be prepared by printing a carbon nanotube slurry layer or laying a carbon nanotube film. The carbon nanotube slurry includes a carbon nanotube, a low melting glass powder, and an organic vehicle. Among them, the organic carrier evaporates during the baking process, and the low-melting glass frit melts during the baking process and fixes the carbon nanotubes on the electrode surface.
具體地，本實施例中的電子發射體208的製備方法包括以下步驟：Specifically, the method for preparing the electron emitter 208 in this embodiment includes the following steps:
步驟一，提供至少兩個奈米碳管膜。In step one, at least two carbon nanotube membranes are provided.
所述奈米碳管膜從一奈米碳管陣列拉取獲得。該奈米碳管膜中包括複數個首尾相連且定向排列的奈米碳管。所述奈米碳管膜的結構及其製備方法請參見范守善等人於2007年2月12日申請的，於2010年7月11公告的第I327177號台灣公告專利申請“奈米碳管薄膜結構及其製備方法”，申請人：鴻海精密工業股份有限公司。The carbon nanotube film is obtained by pulling from a carbon nanotube array. The carbon nanotube film comprises a plurality of carbon nanotubes connected end to end and oriented. For the structure of the carbon nanotube film and the preparation method thereof, please refer to the patent application "Nano Carbon Tube Film Structure" of the No. I327177, which was filed on July 12, 2010 by Fan Shoushan et al. And its preparation method", applicant: Hon Hai Precision Industry Co., Ltd.
步驟二，將該至少兩個奈米碳管膜交叉鋪設覆蓋於第一電極212和第二電極210表面。In step two, the at least two carbon nanotube films are laid across the surface of the first electrode 212 and the second electrode 210.
本實施例中，所述兩個奈米碳管膜中的奈米碳管的延伸方向分別沿著行電極引線204與列電極引線206的長度方向，即兩個奈米碳管膜中的奈米碳管的延伸方向基本垂直。可以理解第一電極212為其他形狀，如圓環形時，可以將複數個奈米碳管薄膜沿不同的交叉角度重疊鋪設於第一電極212和第二電極210表面，以確保奈米碳管膜中的奈米碳管的延伸方向均基本為從第一電極212向第二電極210延伸。進一步的，可用有機溶劑對所述奈米碳管膜進行處理，該有機溶劑為揮發性有機溶劑，如乙醇、甲醇、丙酮、二氯乙烷或氯仿，本實施例中優選採用乙醇。該有機溶劑揮發後，在揮發性有機溶劑的表面張力的作用下所述奈米碳管膜會部分聚集形成奈米碳管線。In this embodiment, the extending directions of the carbon nanotubes in the two carbon nanotube films are along the length direction of the row electrode lead 204 and the column electrode lead 206, respectively, that is, in the two carbon nanotube films. The carbon nanotubes extend substantially perpendicularly. It can be understood that the first electrode 212 has other shapes. For example, when a circular ring shape, a plurality of carbon nanotube films can be overlapped and laid on the surfaces of the first electrode 212 and the second electrode 210 at different crossing angles to ensure the carbon nanotubes. The extending direction of the carbon nanotubes in the film extends substantially from the first electrode 212 to the second electrode 210. Further, the carbon nanotube film may be treated with an organic solvent which is a volatile organic solvent such as ethanol, methanol, acetone, dichloroethane or chloroform, and ethanol is preferably used in this embodiment. After the organic solvent is volatilized, the carbon nanotube film partially aggregates to form a nanocarbon line under the surface tension of the volatile organic solvent.
步驟三，切割奈米碳管膜，使第一電極212與第二電極210之間的奈米碳管膜斷開，形成複數個平行排列的奈米碳管線固定於第一電極212表面作為電子發射體208。Step 3, cutting the carbon nanotube film to break the carbon nanotube film between the first electrode 212 and the second electrode 210, forming a plurality of parallel arranged carbon nanotube lines fixed on the surface of the first electrode 212 as electrons Emitter 208.
所述切割奈米碳管薄膜結構的方法為鐳射燒蝕法、電子束掃描法或加熱熔斷法。本實施例中，優選採用鐳射燒蝕法切割奈米碳管膜。在雷射光束掃描時，空氣中的氧氣會氧化鐳射照射到的奈米碳管，使得奈米碳管蒸發，從而使奈米碳管膜產生斷裂，在奈米碳管膜的斷裂處會形成一電子發射端222，且電子發射端222與第二電極210之間形成一間隔。本實施例中，所用的雷射光束的功率為10~50瓦，掃描速度為0.1~10000毫米/秒。所述雷射光束的寬度為1微米~400微米。該步驟中，同時將行電極引線204與列電極引線206表面以及網格中多餘的奈米碳管膜去除。The method for cutting the structure of the carbon nanotube film is a laser ablation method, an electron beam scanning method or a heat melting method. In this embodiment, the carbon nanotube film is preferably cut by laser ablation. When the laser beam is scanned, the oxygen in the air oxidizes the carbon nanotubes irradiated by the laser, causing the carbon nanotubes to evaporate, thereby causing the carbon nanotube film to break and forming at the break of the carbon nanotube film. An electron emitting end 222 is formed, and a gap is formed between the electron emitting end 222 and the second electrode 210. In this embodiment, the laser beam used has a power of 10 to 50 watts and a scanning speed of 0.1 to 10000 mm/sec. The laser beam has a width of from 1 micrometer to 400 micrometers. In this step, the surface of the row electrode lead 204 and the column electrode lead 206 and the excess carbon nanotube film in the grid are simultaneously removed.
進一步，該場發射顯示裝置200的每個畫素單元220可以進一步包括一固定元件224設置於第一電極212表面，以將複數個電子發射體208固定於第一電極212表面。所述固定元件224可由絕緣材質或導電材質構成。本實施例中，該固定元件224為導電漿料層。Further, each of the pixel units 220 of the field emission display device 200 may further include a fixing member 224 disposed on the surface of the first electrode 212 to fix the plurality of electron emitters 208 to the surface of the first electrode 212. The fixing member 224 may be made of an insulating material or a conductive material. In this embodiment, the fixing member 224 is a conductive paste layer.
請參閱圖3，本發明第二實施例提供一種場發射顯示裝置300，其包括一絕緣基底302，複數個畫素單元320、以及複數個行電極引線304與複數個列電極引線。所述場發射顯示裝置300與本發明第一實施例提供的場發射顯示裝置200的結構基本相同，其區別在於：所述第二電極310具有至少一個與第一電極312相對設置且背向所述絕緣基底302設 置的承載面3102。Referring to FIG. 3, a second embodiment of the present invention provides a field emission display device 300 including an insulating substrate 302, a plurality of pixel units 320, and a plurality of row electrode leads 304 and a plurality of column electrode leads. The field emission display device 300 has substantially the same structure as the field emission display device 200 provided by the first embodiment of the present invention, and the difference is that the second electrode 310 has at least one opposite to the first electrode 312 and faces away from the Insulation substrate 302 The bearing surface 3102 is placed.
所謂“相對第一電極312設置”指所述承載面3102面對所述第一電極312設置，從而使得所述第一電極312和第二電極310分別位於承載面3102的兩側。所謂“背向所述絕緣基底302設置”指所述承載面3102至少部分面向遠離所述絕緣基底302的方向。所述承載面3102可以為平面或曲面。當所述承載面3102為平面時，所述承載面3102與絕緣基底302的表面形成一大於零度且小於90度的夾角。優選地，該夾角的角度大於等於30度且小於等於60度。當所述承載面3102為曲面時，該承載面3102可以為凸面或凹面。所述承載面3102可以與絕緣基底302的表面直接相交或間隔設置。The "relative to the first electrode 312" means that the bearing surface 3102 is disposed facing the first electrode 312 such that the first electrode 312 and the second electrode 310 are respectively located on both sides of the bearing surface 3102. By "provided facing away from the insulating substrate 302" is meant that the bearing surface 3102 faces at least partially away from the insulating substrate 302. The bearing surface 3102 can be a flat surface or a curved surface. When the bearing surface 3102 is planar, the bearing surface 3102 forms an angle greater than zero degrees and less than 90 degrees with the surface of the insulating substrate 302. Preferably, the angle of the included angle is greater than or equal to 30 degrees and less than or equal to 60 degrees. When the bearing surface 3102 is a curved surface, the bearing surface 3102 may be convex or concave. The bearing surface 3102 may be directly intersected or spaced apart from the surface of the insulating substrate 302.
具體地，本實施例中，所述第二電極310為四棱錐體，其邊長沿著遠離絕緣基底302的方向逐漸減小，從而使該第二電極310具有四個分別與四周的第一電極312相對設置的斜面作為承載面3102。所述螢光粉層318分別設置於所述第二電極310的四個承載面3102。所述每個承載面3102與絕緣基底302表面的夾角大於等於30度且小於等於60度。所述第二電極310可通過複數次列印導電漿料，且逐漸減小列印的導電漿料層的邊長的方法形成。由於導電漿料本身具有一定的流淌性，從而形成承載面3102。Specifically, in the embodiment, the second electrode 310 is a quadrangular pyramid whose side length gradually decreases along a direction away from the insulating substrate 302, so that the second electrode 310 has four first and four sides respectively. The inclined surface of the electrode 312 is oppositely disposed as the bearing surface 3102. The phosphor powder layers 318 are respectively disposed on the four bearing surfaces 3102 of the second electrode 310. The angle between each of the bearing surfaces 3102 and the surface of the insulating substrate 302 is greater than or equal to 30 degrees and less than or equal to 60 degrees. The second electrode 310 may be formed by printing a conductive paste a plurality of times and gradually reducing the side length of the printed conductive paste layer. Since the conductive paste itself has a certain flowability, the bearing surface 3102 is formed.
本實施例中，由於所述第二電極310具有四個分別與四周的電子發射端322相對設置且背向所述絕緣基底302設置的承載面3102，且所述螢光粉層318分別設置於四個承載面3102，使得螢光粉層318不但具有較大的面積，而且容易被電子發射端322發射的電子轟擊到，從而使得場發射顯示裝置300具有較高的亮度。In this embodiment, the second electrode 310 has four bearing surfaces 3102 disposed opposite to the surrounding electron emitting ends 322 and facing away from the insulating substrate 302, and the phosphor powder layers 318 are respectively disposed on The four bearing surfaces 3102 are such that the phosphor layer 318 not only has a large area, but is also easily bombarded by electrons emitted from the electron-emitting end 322, so that the field emission display device 300 has a higher brightness.
請參閱圖4和圖5，本發明第三實施例提供一種場發射顯示裝置400，其包括一絕緣基底402，複數個畫素單元420、以及複數個行電極引線404與複數個列電極引線406。所述場發射顯示裝置400與本發明第一實施例提供的場發射顯示裝置200的結構基本相同，其區別在於：所述第二電極410為圓形平面導電體，所述第一電極412為圓環形，所述第一電極412用作陽極電極，所述第二電極410用作陰極電極，所述複數個電子發射體408設置於所述第二電極410表面，所述螢光粉層418設置於第 一電極412表面。Referring to FIG. 4 and FIG. 5, a third embodiment of the present invention provides a field emission display device 400 including an insulating substrate 402, a plurality of pixel units 420, and a plurality of row electrode leads 404 and a plurality of column electrode leads 406. . The field emission display device 400 has substantially the same structure as the field emission display device 200 provided by the first embodiment of the present invention, and the difference is that the second electrode 410 is a circular planar conductor, and the first electrode 412 is Annular, the first electrode 412 is used as an anode electrode, the second electrode 410 is used as a cathode electrode, and the plurality of electron emitters 408 are disposed on the surface of the second electrode 410, the phosphor layer 418 is set in the first An electrode 412 surface.
具體地，本實施例中，所述第一電極412為橫截面為矩形的圓環形平面導電體。進一步，本實施例中，所述第一電極412的厚度大於所述第二電極410的厚度可以防止相鄰畫素單元420的第一電極412的陽極電場覆蓋到該第二電極410表面。所述螢光粉層418設置於所述第一電極412遠離絕緣基底402的表面。所述複數個電子發射體408設置於第二電極410表面，且電子發射體408的電子發射端422分別向周圍的第一電極412方向延伸。本實施例中，所述複數個電子發射體408為複數個橫穿第二電極410且交叉設置的奈米碳管線。Specifically, in this embodiment, the first electrode 412 is a circular planar planar conductor having a rectangular cross section. Further, in the embodiment, the thickness of the first electrode 412 is greater than the thickness of the second electrode 410 to prevent the anode electric field of the first electrode 412 of the adjacent pixel unit 420 from covering the surface of the second electrode 410. The phosphor layer 418 is disposed on a surface of the first electrode 412 away from the insulating substrate 402. The plurality of electron emitters 408 are disposed on the surface of the second electrode 410, and the electron emission ends 422 of the electron emitters 408 respectively extend toward the surrounding first electrodes 412. In this embodiment, the plurality of electron emitters 408 are a plurality of nano carbon pipelines that are disposed across the second electrode 410 and are disposed at intersections.
本實施例中，所述第二電極410表面設置有複數個電子發射體408，且複數個電子發射體408的電子發射端422分別指向周圍的第一電極412，故，提高每個畫素單元420的場發射電流。而且，所述螢光粉層418設置於環繞所述第二電極410的環形第一電極412表面，具有較大的發光面積。故，所述場發射顯示裝置400具有較高的亮度。In this embodiment, a plurality of electron emitters 408 are disposed on the surface of the second electrode 410, and the electron emission ends 422 of the plurality of electron emitters 408 are respectively directed to the surrounding first electrodes 412, so that each pixel unit is improved. Field emission current of 420. Moreover, the phosphor layer 418 is disposed on the surface of the annular first electrode 412 surrounding the second electrode 410, and has a large light-emitting area. Therefore, the field emission display device 400 has a high brightness.
請參閱圖6，本發明第四實施例提供一種場發射顯示裝置500，其包括一絕緣基底502，複數個畫素單元520、以及複數個行電極引線504與複數個列電極引線。所述場發射顯示裝置500與本發明第三實施例提供的場發射顯示裝置400的結構基本相同，其區別在於：所述第一電極512具有一與第二電極510相對設置且背向所述絕緣基底502設置的承載面5122。Referring to FIG. 6, a fourth embodiment of the present invention provides a field emission display device 500 including an insulating substrate 502, a plurality of pixel units 520, and a plurality of row electrode leads 504 and a plurality of column electrode leads. The field emission display device 500 has substantially the same structure as the field emission display device 400 provided by the third embodiment of the present invention, and the difference is that the first electrode 512 has a second electrode 510 opposite to the second electrode 510 and faces away from the A bearing surface 5122 is provided on the insulating substrate 502.
具體地，本實施例中，所述第一電極512的寬度均沿著遠離絕緣基底502的方向逐漸減小，從而使該第一電極512具有一與電子發射端522相對設置的環形斜面作為承載面5122。所述螢光粉層518設置於所述第一電極512的承載面5122。所述複數個電子發射體508的電子發射端522分別指向周圍承載面5122的螢光粉層518。Specifically, in the embodiment, the width of the first electrode 512 is gradually decreased along a direction away from the insulating substrate 502, so that the first electrode 512 has a circular inclined surface disposed opposite to the electron emitting end 522 as a bearing. Face 5122. The phosphor layer 518 is disposed on the bearing surface 5122 of the first electrode 512. The electron emitting ends 522 of the plurality of electron emitters 508 are respectively directed to the phosphor layer 518 of the surrounding carrying surface 5122.
本實施例中，所述第一電極512具有一與電子發射體508相對設置且背向所述絕緣基底502設置的環形承載面5122，且所述螢光粉層518設置於所述環形承載面5122，具有較大的面積，且容易被電子發射體508轟擊到，故，提高所述場發射顯示裝置500的亮度和顯示均勻度。In this embodiment, the first electrode 512 has an annular bearing surface 5122 disposed opposite to the electron emitter 508 and facing away from the insulating substrate 502, and the phosphor layer 518 is disposed on the annular bearing surface. 5122, which has a large area and is easily bombarded by the electron emitter 508, thereby improving the brightness and display uniformity of the field emission display device 500.
請參閱圖7和圖8，本發明第五實施例提供一種場發射顯示 裝置600，其包括一絕緣基底602，複數個畫素單元620、以及複數個行電極引線604與複數個列電極引線606。所述場發射顯示裝置600與本發明第一實施例提供的場發射顯示裝置200的結構基本相同，其區別在於：所述第一電極612和第二電極610表面均設置有複數個電子發射體608和螢光粉層618。Referring to FIG. 7 and FIG. 8 , a fifth embodiment of the present invention provides a field emission display. Apparatus 600 includes an insulative substrate 602, a plurality of pixel units 620, and a plurality of row electrode leads 604 and a plurality of column electrode leads 606. The field emission display device 600 has substantially the same structure as the field emission display device 200 according to the first embodiment of the present invention, and the difference is that the first electrode 612 and the second electrode 610 are provided with a plurality of electron emitters on the surface thereof. 608 and phosphor layer 618.
具體地，所述複數個電子發射體608分別設置於所述第一電極612和第二電極610遠離絕緣基底602的表面，且第一電極612和第二電極610表面的電子發射體608相對且間隔設置。所述螢光粉層618分別設置於所述第一電極612和第二電極610遠離絕緣基底602的表面，且將複數個電子發射體608部分覆蓋。所述第一電極812表面的電子發射體608分別向第二電極610方向延伸，且其電子發射端622指向第二電極610表面的螢光粉層618。所述第二電極610表面的電子發射體608分別向第一電極612方向延伸，且其電子發射端622指向第一電極612表面的螢光粉層618。Specifically, the plurality of electron emitters 608 are respectively disposed on the surface of the first electrode 612 and the second electrode 610 away from the insulating substrate 602, and the electron emitters 608 on the surfaces of the first electrode 612 and the second electrode 610 are opposite to each other. Interval setting. The phosphor layer 618 is disposed on the surface of the first electrode 612 and the second electrode 610 away from the insulating substrate 602, and partially covers the plurality of electron emitters 608. The electron emitters 608 on the surface of the first electrode 812 extend toward the second electrode 610, respectively, and the electron emission end 622 thereof is directed to the phosphor layer 618 on the surface of the second electrode 610. The electron emitters 608 on the surface of the second electrode 610 extend toward the first electrode 612, respectively, and the electron emission end 622 thereof is directed to the phosphor layer 618 on the surface of the first electrode 612.
本實施例中，所述第一電極612和第二電極610可以交替用作陰極電極和陽極電極，從而提高場發射顯示裝置600的使用壽命。優選地，所述第一電極612和第二電極610之間可以施加一交流電壓，從而使所述第一電極612和第二電極610可以交替用作陰極電極和陽極電極。In this embodiment, the first electrode 612 and the second electrode 610 may alternately function as a cathode electrode and an anode electrode, thereby improving the service life of the field emission display device 600. Preferably, an alternating voltage may be applied between the first electrode 612 and the second electrode 610 such that the first electrode 612 and the second electrode 610 may alternately function as a cathode electrode and an anode electrode.
請參閱圖9，本發明第六實施例提供一種場發射顯示裝置700，其包括一絕緣基底702，複數個畫素單元720、以及複數個行電極引線704與複數個列電極引線。所述場發射顯示裝置700與本發明第一實施例提供的場發射顯示裝置200的結構基本相同，其區別在於：進一步包括一第三電極726與所述絕緣基底702平行且間隔設置，所述螢光粉層718設置於該第三電極726相對所述絕緣基底702的表面，且每個螢光粉層718與一畫素單元720相對設置。Referring to FIG. 9, a sixth embodiment of the present invention provides a field emission display device 700 including an insulating substrate 702, a plurality of pixel units 720, and a plurality of row electrode leads 704 and a plurality of column electrode leads. The field emission display device 700 has substantially the same structure as the field emission display device 200 provided by the first embodiment of the present invention, and further includes a third electrode 726 disposed in parallel with and spaced apart from the insulating substrate 702. The phosphor layer 718 is disposed on the surface of the third electrode 726 opposite to the insulating substrate 702, and each of the phosphor layers 718 is disposed opposite to the pixel unit 720.
具體地，所述第三電極726與絕緣基底702平行且間隔設置，所述複數個畫素單元720，行電極引線704和複數個列電極引線設置於第三電極726與絕緣基底702之間。所述場發射顯示裝置700工作時，第一電極712用作陰極電極，第二電極710用作柵極電極，第三電極726用作陽極電極。所述電子發射體608在第二電極710作用下發射電子，且發 射的電子在第三電極726作用下向第三電極726方向加速運動，以轟擊螢光粉層718。Specifically, the third electrode 726 is disposed in parallel with and spaced apart from the insulating substrate 702. The plurality of pixel units 720, the row electrode leads 704 and the plurality of column electrode leads are disposed between the third electrode 726 and the insulating substrate 702. When the field emission display device 700 is in operation, the first electrode 712 functions as a cathode electrode, the second electrode 710 functions as a gate electrode, and the third electrode 726 functions as an anode electrode. The electron emitter 608 emits electrons under the action of the second electrode 710, and emits The emitted electrons accelerate in the direction of the third electrode 726 under the action of the third electrode 726 to bombard the phosphor layer 718.
綜上所述，本發明確已符合發明專利之要件，遂依法提出專利申請。惟，以上所述者僅為本發明之較佳實施例，自不能以此限制本案之申請專利範圍。舉凡熟悉本案技藝之人士援依本發明之精神所作之等效修飾或變化，皆應涵蓋於以下申請專利範圍內。In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.
200‧‧‧場發射顯示裝置200‧‧ ‧ field emission display device
202‧‧‧絕緣基底202‧‧‧Insulation base
204‧‧‧行電極引線204‧‧‧ row electrode lead
208‧‧‧電子發射體208‧‧‧Electronic emitters
210‧‧‧第二電極210‧‧‧second electrode
212‧‧‧第一電極212‧‧‧First electrode
218‧‧‧螢光粉層218‧‧‧Fluorescent powder layer
220‧‧‧畫素單元220‧‧‧ pixel unit
222‧‧‧電子發射端222‧‧‧Electronic transmitter
224‧‧‧固定元件224‧‧‧Fixed components
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| US20070200478A1 (en) * | 2003-12-02 | 2007-08-30 | Commissariat A L'energie Atomique | Field Emission Device |
| US20050231088A1 (en) * | 2004-04-14 | 2005-10-20 | Kuo-Rong Chen | Mesh structure of tetraode field-emission display and method of fabricating the same |
| US20060208625A1 (en) * | 2005-03-16 | 2006-09-21 | Dean Kenneth A | Field emission display |
| TW200929322A (en) * | 2007-12-26 | 2009-07-01 | Hon Hai Prec Ind Co Ltd | Field emission electron device |
| TW200933692A (en) * | 2008-01-25 | 2009-08-01 | Hon Hai Prec Ind Co Ltd | Method for making field emission electron device |
| TW200943359A (en) * | 2008-04-11 | 2009-10-16 | Hon Hai Prec Ind Co Ltd | Field emission display |
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| Publication number | Publication date |
|---|---|
| TW201415510A (en) | 2014-04-16 |
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