TWI427675B - Incandescent source display and method for making the same - Google Patents
Incandescent source display and method for making the same Download PDFInfo
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本發明涉及一種顯示裝置，尤其係一種利用白熾光源做畫素點之顯示裝置。 The present invention relates to a display device, and more particularly to a display device using an incandescent light source as a pixel point.
於顯示領域，為使用戶能夠正常感知動態影像，正常之顯示裝置必須能於一秒鐘內顯示至少24幀影像畫面，即要求該顯示裝置中之畫素之回應時間短於41毫秒，且該回應時間越短越好。目前最常用之冷陰極管(Cathode Ray Tube,CRT)顯示裝置，其用來顯示之畫素為用電子束擊打而發光之螢光粉，而輝光殘留時間較短，故傳統冷陰極管顯示裝置之回應時間可達到微秒量級，顯示之畫面比較流暢。而液晶顯示裝置畫素點之回應時間一般短於25毫秒，甚至有些液晶顯示裝置之回應時間已經達到5毫秒，能滿足正常之現實需要。 In the display field, in order to enable the user to normally perceive the motion image, the normal display device must be able to display at least 24 frames of image in one second, that is, the response time of the pixel in the display device is required to be shorter than 41 milliseconds, and the The shorter the response time, the better. At present, the most commonly used cathode cathode ray tube (CRT) display device is used to display a fluorescing powder that is illuminated by an electron beam, and the glow residual time is short, so the conventional cold cathode tube display The response time of the device can reach the order of microseconds, and the displayed picture is relatively smooth. The response time of the pixel of the liquid crystal display device is generally shorter than 25 milliseconds, and even the response time of some liquid crystal display devices has reached 5 milliseconds, which can meet the normal needs of reality.
自1879年愛迪生以電-熱-光原理發明白熾光源(Incandescence Light)以來，白熾光源迅速進入了人們之生活，白熾光源之材料也從最初之碳纖維、碳化棉發展到現於各種耐熱金屬或複合材料。目前普遍使用之白熾光源係由美國發明家庫利奇於1908年發明之鎢絲白熾燈。目前，傳統白熾光源之響應時間比較長，以直徑為15微米之鎢絲為例，其回應時間大於100毫秒。故，作為人 類最早使用、應用最廣泛、驅動最簡單之光源，白熾光源始終沒能成功應用到顯示領域，用於直接顯示動態影像。 Since 1879, when Edison invented the Incandescence Light with the electric-thermal-light principle, incandescent light sources have quickly entered people's lives. The materials of incandescent light sources have also evolved from the original carbon fiber and carbonized cotton to various heat-resistant metals or composites. material. The incandescent light source currently in common use is a tungsten incandescent lamp invented by American inventor Kulich in 1908. At present, the response time of a conventional incandescent light source is relatively long. For example, a tungsten wire having a diameter of 15 μm has a response time of more than 100 milliseconds. Therefore, as a person The earliest use, the most widely used, and the simplest driving light source, the incandescent light source has not been successfully applied to the display field for direct display of motion pictures.
有鑒於此，提供一種白熾光源顯示裝置實為必要，該白熾光源顯示裝置中畫素點為白熾光源，且能夠顯示動態影像。 In view of the above, it is necessary to provide an incandescent light source display device in which a pixel point is an incandescent light source and is capable of displaying a moving image.
一種白熾光源顯示裝置，其包括複數間隔設置之行電極引線，複數間隔設置之列電極引線與複數白熾光源。該複數行電極引線與複數列電極引線相互交叉設置，每相鄰兩個行電極引線與與其交叉之相鄰兩個列電極引線形成一網格，該行電極引線與列電極引線之間電絕緣。每個網格對應設置一個白熾光源，該每個白熾光源包括一個奈米碳管結構。該奈米碳管結構與對應該網格之一個行電極引線及一個列電極引線電連接，該奈米碳管結構之單位面積熱容小於2×10-4焦耳每平方厘米開爾文。 An incandescent light source display device includes a plurality of spaced-apart row electrode leads, a plurality of spaced-apart column electrode leads and a plurality of incandescent light sources. The plurality of row electrode leads and the plurality of column electrode leads are disposed to cross each other, and each adjacent two row electrode leads forms a grid with the adjacent two column electrode leads intersecting therewith, and the row electrode leads and the column electrode leads are electrically insulated . Each grid is provided with an incandescent light source, and each of the incandescent light sources includes a carbon nanotube structure. The carbon nanotube structure is electrically connected to a row electrode lead and a column electrode lead corresponding to the grid, and the carbon nanotube structure has a heat capacity per unit area of less than 2 x 10 -4 joules per square centimeter Kelvin.
一種白熾光源顯示裝置，其包括一基板與複數白熾光源。複數平行間隔設置之行電極引線及複數平行間隔設置之列電極引線設置該基板表面。該複數行電極引線與複數列電極引線相互垂直交叉設置，該複數行電極引線與複數列電極引線之間電絕緣，每相鄰兩個行電極引線與相鄰兩個列電極引線形成一網格。每個網格對應設置一個白熾光源，每個網格對應一個畫素單元。每個白熾光源包括一個第一電極、一個第二電極與一個奈米碳管結構。該奈米碳管結構設置於第一電極與第二電極之間並與第一電極與第二電極電連接，該第一電極與第二電極分別與列電極引線與行電極引線電連接。該奈米碳管結構之單位面積熱容小於2×10-4焦耳每平方厘米開爾文。 An incandescent light source display device includes a substrate and a plurality of incandescent light sources. A plurality of parallel spaced row electrode leads and a plurality of parallel spaced column electrode leads are disposed on the substrate surface. The plurality of row electrode leads and the plurality of column electrode leads are perpendicularly disposed to each other, the plurality of row electrode leads and the plurality of column electrode leads are electrically insulated, and each adjacent two row electrode leads forms a grid with the adjacent two column electrode leads . Each grid corresponds to an incandescent light source, and each grid corresponds to one pixel unit. Each incandescent source includes a first electrode, a second electrode, and a carbon nanotube structure. The carbon nanotube structure is disposed between the first electrode and the second electrode and electrically connected to the first electrode and the second electrode, and the first electrode and the second electrode are electrically connected to the column electrode lead and the row electrode lead, respectively. The carbon nanotube structure has a heat capacity per unit area of less than 2 x 10 -4 joules per square centimeter of Kelvin.
一種白熾光源顯示裝置之製備方法，其包括如下步驟：提供一基板；形成複數間隔設置之行電極引線於該基板表面；形成複數間隔設置之列電極引線於該基板表面，且該複數行電極引線及複數列電極引線相互交叉設置形成網路，每兩個相鄰之行電極引線與與其交叉之每兩個相鄰之列電極引線相互交叉形成一網格，該複數行電極引線與列電極引線彼此絕緣；形成複數第一電極與第二電極於上述基板表面，於每個網格中間隔形成一第一電極與一第二電極；提供一奈米碳管結構覆蓋該基板並與第一電極與第二電極電接觸，該奈米碳管結構中奈米碳管基本沿第一電極向第二電極延伸；切割該奈米碳管結構，使不同網格內之奈米碳管結構斷開。 A method for preparing an incandescent light source display device, comprising the steps of: providing a substrate; forming a plurality of spaced row electrode leads on the substrate surface; forming a plurality of spaced column electrode leads on the substrate surface, and the plurality of row electrode leads And the plurality of column electrode leads are arranged to intersect each other to form a network, and each of the two adjacent row electrode leads intersects with each of the two adjacent column electrode leads crossing the same to form a grid, and the plurality of row electrode leads and the column electrode leads Insulating each other; forming a plurality of first electrodes and second electrodes on the surface of the substrate, forming a first electrode and a second electrode in each of the grids; providing a carbon nanotube structure covering the substrate and the first electrode Electrically contacting the second electrode, wherein the carbon nanotube tube extends substantially along the first electrode toward the second electrode; cutting the carbon nanotube structure to disconnect the carbon nanotube structure in different grids .
一種白熾光源顯示裝置，其包括複數間隔設置之行電極引線及複數間隔設置之列電極引線，所述複數行電極引線與複數列電極引線相互交叉設置，形成複數網格，所述行電極引線與列電極引線之間電絕緣。與複數白熾光源與所述複數網格一一對應設置，每個白熾光源對應一個畫素單元，且包括一個奈米碳管結構與其對應之網格之行電極引線及列電極引線電連接，該奈米碳管結構之單位面積熱容小於2×10-4焦耳每平方厘米開爾文。 An incandescent light source display device comprising a plurality of spaced row electrode leads and a plurality of spaced column electrode leads, wherein the plurality of row electrode leads and the plurality of column electrode leads are disposed to cross each other to form a plurality of grids, and the row electrode leads and The column electrode leads are electrically insulated. And the plurality of incandescent light sources are arranged in one-to-one correspondence with the plurality of grids, each of the incandescent light sources corresponding to one pixel unit, and including a carbon nanotube structure electrically connected to the row electrode lead and the column electrode lead of the corresponding grid, The carbon nanotube structure has a heat capacity per unit area of less than 2 x 10 -4 joules per square centimeter of Kelvin.
與先前技術相較，該白熾光源顯示裝置採用包括奈米碳管結構之白熾光源直接顯示影像，利用該奈米碳管結構極短之回應時間，使該白熾光源顯示裝置能夠顯示動態影像。 Compared with the prior art, the incandescent light source display device directly displays an image by using an incandescent light source including a carbon nanotube structure, and the incandescent light source display device can display a dynamic image by using the carbon nanotube structure with a very short response time.
100‧‧‧白熾光源顯示裝置 100‧‧‧incandescent light source display device
110‧‧‧基板 110‧‧‧Substrate
120‧‧‧行電極引線 120‧‧‧ row electrode lead
121‧‧‧第一電極 121‧‧‧First electrode
130‧‧‧列電極引線 130‧‧‧ column electrode lead
131‧‧‧第二電極 131‧‧‧second electrode
140‧‧‧絕緣體 140‧‧‧Insulator
150‧‧‧白熾光源 150‧‧‧incandescent light source
圖1係本發明實施例之白熾光源顯示裝置之立體結構示意圖。 1 is a schematic perspective view showing the structure of an incandescent light source display device according to an embodiment of the present invention.
圖2係圖1白熾光源顯示裝置之俯視圖。 2 is a top plan view of the incandescent light source display device of FIG. 1.
圖3係圖2白熾光源顯示裝置沿Ⅲ-Ⅲ方向之剖視圖。 Figure 3 is a cross-sectional view of the incandescent light source display device of Figure 2 taken along the line III-III.
圖4係圖1中白熾光源之掃描電鏡照片。 Figure 4 is a scanning electron micrograph of the incandescent light source of Figure 1.
圖5係圖4白熾光源設置於第一電極及第二電極上俯視時之掃描電鏡照片。 FIG. 5 is a scanning electron micrograph of the incandescent light source disposed on the first electrode and the second electrode in a plan view.
圖6係圖4白熾光源設置於第一電極及第二電極上側視時之掃描電鏡照片。 6 is a scanning electron micrograph of the incandescent light source disposed on the first electrode and the second electrode in a side view.
圖7係圖1中白熾光源之回應時間圖。 Figure 7 is a response time diagram of the incandescent light source of Figure 1.
圖8係圖1中白熾光源之亮度功率曲線圖。 Figure 8 is a graph showing the luminance power of the incandescent light source of Figure 1.
圖9係圖1中白熾光源之電流及發光穩定性曲線圖。 Figure 9 is a graph showing the current and luminescence stability of the incandescent light source of Figure 1.
圖10係本發明實施例白熾光源顯示裝置之製備方法之流程示意圖。 FIG. 10 is a schematic flow chart of a method for preparing an incandescent light source display device according to an embodiment of the present invention.
以下將結合附圖詳細說明本發明白熾光源顯示裝置及其製備方法。 The incandescent light source display device of the present invention and a method of fabricating the same will be described in detail below with reference to the accompanying drawings.
請參閱圖1至圖3，本發明實施例提供一種白熾光源顯示裝置100，其包括一基板110、複數間隔設置之行電極引線120、複數間隔設置之列電極引線130、複數絕緣體140、複數白熾光源150及複數固定元件160。該行電極引線120及列電極引線130設置於該基板110表面，且該行電極引線120與列電極引線130交叉設置，並通過該絕緣體140絕緣連接。 Referring to FIG. 1 to FIG. 3 , an embodiment of the present invention provides an incandescent light source display device 100 including a substrate 110 , a plurality of spaced row electrode leads 120 , a plurality of spaced column electrode leads 130 , a plurality of insulators 140 , and a plurality of incandescent Light source 150 and a plurality of fixed elements 160. The row electrode lead 120 and the column electrode lead 130 are disposed on the surface of the substrate 110, and the row electrode lead 120 and the column electrode lead 130 are disposed to intersect with each other and are insulatedly connected by the insulator 140.
該基板110用於承載該行電極引線120、列電極引線130及絕緣體140。該基板110之材料為玻璃、石英、聚合物或陶瓷，可根據實 際應用將該基板110製備成柔性或剛性，透明狀或非透明狀。本實施例中，該基板110為透明狀之玻璃。 The substrate 110 is used to carry the row electrode lead 120, the column electrode lead 130, and the insulator 140. The material of the substrate 110 is glass, quartz, polymer or ceramic, and can be based on reality. The substrate 110 is prepared to be flexible or rigid, transparent or non-transparent. In this embodiment, the substrate 110 is a transparent glass.
該複數行電極引線120彼此間隔設置，該複數列電極引線130彼此間隔設置，且該複數行電極引線120與複數列電極引線130相互交叉設置，並將該複數絕緣體140夾持其間實現行電極引線120與列電極引線130之間之絕緣。每相鄰兩個行電極引線120與相鄰兩個列電極引線130引線形成一網格，該網格用於容置該白熾光源150，且每個網格對應設置有一個白熾光源150。每個網格中，白熾光源150分別與行電極引線120及列電極引線130電連接，以提供其發光所需之電壓或電流。可以理解，該網格之大小可根據白熾光源顯示裝置100對解析度之要求而設置。本實施例中，每個網格均設置有一個白熾光源150。該複數行電極引線120相互平行且相鄰兩個行電極引線120之間間距相等，該複數列電極引線130相互平行且相鄰兩個列電極引線130之間間距相等，且該行電極引線120與列電極引線130垂直設置。該行電極引線120沿該列電極引線130之軸向方向延伸出一第一電極121，該列電極引線130沿該行電極引線120之軸向方向延伸出一第二電極131，且排列於同一行網格中之第一電極121與同一個行電極引線120電連接，排列於同一列網格中之第二電極131與同一個列電極引線130電連接。該第一電極121與第二電極131之間具有一間隙，該白熾光源150容置於該間隙，並通過該第一電極121及第二電極131與分別於該行電極引線120及列電極引線130電連接。於本實施例中，該第一電極121及第二電極131於該基板110表面之厚度可大於該電極引線120及列電極引線130之厚度，且該厚度不小於1微米。當然，該第一電極121及第二電極131於該基板110表面之厚度也可等於 該電極引線120及列電極引線130之厚度，此時，該第一電極121可與行電極引線120一體成型，該第二電極131可與列電極引線130一體成型。 The plurality of row electrode leads 120 are spaced apart from each other, the plurality of row electrode leads 130 are spaced apart from each other, and the plurality of row electrode leads 120 and the plurality of column electrode leads 130 are disposed to cross each other, and the plurality of insulators 140 are sandwiched therebetween to realize row electrode leads The insulation between 120 and column electrode lead 130. Each adjacent two row electrode leads 120 and two adjacent column electrode leads 130 lead form a grid for accommodating the incandescent light source 150, and each grid is correspondingly provided with an incandescent light source 150. In each of the grids, the incandescent light source 150 is electrically coupled to the row electrode lead 120 and the column electrode lead 130, respectively, to provide the voltage or current required for its illumination. It can be understood that the size of the grid can be set according to the resolution requirements of the incandescent light source display device 100. In this embodiment, each grid is provided with an incandescent light source 150. The plurality of row electrode leads 120 are parallel to each other and the spacing between adjacent two row electrode leads 120 is equal, the plurality of column electrode leads 130 are parallel to each other and the spacing between adjacent two column electrode leads 130 is equal, and the row electrode leads 120 are equal to each other. It is disposed perpendicular to the column electrode lead 130. The row of electrode leads 120 extends along the axial direction of the column electrode lead 130 to form a first electrode 121. The column electrode lead 130 extends along the axial direction of the row electrode lead 120 to form a second electrode 131, and is arranged in the same The first electrodes 121 in the row grid are electrically connected to the same row electrode lead 120, and the second electrodes 131 arranged in the same column grid are electrically connected to the same column electrode lead 130. A gap is formed between the first electrode 121 and the second electrode 131. The incandescent light source 150 is received in the gap, and passes through the first electrode 121 and the second electrode 131 and the row electrode lead 120 and the column electrode lead respectively. 130 electrical connections. In this embodiment, the thickness of the first electrode 121 and the second electrode 131 on the surface of the substrate 110 may be greater than the thickness of the electrode lead 120 and the column electrode lead 130, and the thickness is not less than 1 micrometer. Of course, the thickness of the first electrode 121 and the second electrode 131 on the surface of the substrate 110 may also be equal to The thickness of the electrode lead 120 and the column electrode lead 130. At this time, the first electrode 121 can be integrally formed with the row electrode lead 120, and the second electrode 131 can be integrally formed with the column electrode lead 130.
該固定元件160可通過用絲網印刷法設置於該第一電極121及第二電極131表面，並將該白熾光源150夾持其中，使該白熾光源150牢固地固定於固定元件160與第一電極121或第二電極131之間。 The fixing component 160 can be disposed on the surface of the first electrode 121 and the second electrode 131 by screen printing, and the incandescent light source 150 is clamped therein, so that the incandescent light source 150 is firmly fixed to the fixing component 160 and the first Between the electrode 121 or the second electrode 131.
該白熾光源顯示裝置100進一步包括一殼體(圖未示)，該殼體內形成有一封閉空間***述白熾光源150，該封閉空間為真空或收容有惰性氣體.本領域技術人員可以理解，所述殼體可以通過現有真空封裝技術將形成該封閉空間並將所述白熾光源150收容，優選地，所述真空封裝技術為無管封裝技術。 The incandescent light source display device 100 further includes a housing (not shown), and an enclosed space is formed in the housing to receive the incandescent light source 150. The enclosed space is vacuum or contains an inert gas. As will be understood by those skilled in the art, The housing may form the enclosed space and accommodate the incandescent light source 150 by existing vacuum packaging techniques. Preferably, the vacuum packaging technique is a tubeless packaging technique.
該複數白熾光源150設置於該複數網格中並與該基板110間隔設置，優選地，該白熾光源150與基板110之間之間隔距離大於等於1微米，該間隔距離可通過設置第一電極121及第二電極131之於該基板110表面之厚度來控制。 The plurality of incandescent light sources 150 are disposed in the plurality of grids and spaced apart from the substrate 110. Preferably, the distance between the incandescent light source 150 and the substrate 110 is greater than or equal to 1 micrometer, and the spacing distance can be set by the first electrode 121. And controlling the thickness of the second electrode 131 on the surface of the substrate 110.
每一網格中之白熾光源150對應該白熾光源顯示裝置100之一個畫素單元。該白熾光源150之單位面積熱容小於2×10-4焦耳每平方厘米開爾文，優選地，該白熾光源150之單位面積熱容小於1.7×10-6焦耳每平方厘米開爾文。該白熾光源150包括一奈米碳管結構，該奈米碳管結構為一自支撐結構，所謂“自支撐結構”即該奈米碳管結構無需通過一支撐體支撐，也能保持自身特定的形狀。該自支撐結構的奈米碳管結構中多個碳納米管間通過凡德瓦力相互吸引，從而使奈米碳管結構具有特定的形狀。 The incandescent light source 150 in each grid corresponds to one pixel unit of the incandescent light source display device 100. The incandescent light source 150 has a heat capacity per unit area of less than 2 x 10 -4 joules per square centimeter Kelvin. Preferably, the incandescent light source 150 has a heat capacity per unit area of less than 1.7 x 10 -6 joules per square centimeter Kelvin. The incandescent light source 150 comprises a carbon nanotube structure, the self-supporting structure, the so-called "self-supporting structure", that is, the carbon nanotube structure does not need to be supported by a support body, and can maintain its own specific shape. In the carbon nanotube structure of the self-supporting structure, a plurality of carbon nanotubes are attracted to each other by van der Waals force, so that the carbon nanotube structure has a specific shape.
該奈米碳管結構至少包括複數奈米碳管沿該第一電極121往第二電極131延伸。具體地，該奈米碳管結構包括至少一奈米碳管膜、至少一奈米碳管線狀結構或其組合。具體地，該奈米碳管結構可包括單層奈米碳管膜或由多層奈米碳管膜層疊形成之結構，可包括單個奈米碳管線狀結構或複數奈米碳管線狀結構結構通過交叉設置、平行設置或編織而形成之結構，還可包括由奈米碳管線狀結構設置於該奈米碳管膜之表面而形成之結構。該奈米碳管結構還可與複數填充材料復合形成一奈米碳管複合結構。該奈米碳管複合結構中填充材料可複合於該奈米碳管結構表面或填充於該奈米碳管結構內部之間隙。該填充材料為導電性及耐熱性較好之材料，如鉑、鎢或金。 The carbon nanotube structure includes at least a plurality of carbon nanotubes extending along the first electrode 121 toward the second electrode 131. Specifically, the carbon nanotube structure includes at least one carbon nanotube film, at least one nanocarbon line structure, or a combination thereof. Specifically, the carbon nanotube structure may include a single-layer carbon nanotube film or a structure formed by laminating a plurality of layers of carbon nanotube film, and may include a single nano carbon line structure or a plurality of nano carbon line structure. The structure formed by the cross arrangement, the parallel arrangement or the weaving may further include a structure formed by a nano carbon line structure disposed on the surface of the carbon nanotube film. The carbon nanotube structure can also be combined with a plurality of filler materials to form a carbon nanotube composite structure. The filler material in the carbon nanotube composite structure may be composited on the surface of the carbon nanotube structure or filled in the gap inside the carbon nanotube structure. The filler material is a material having good conductivity and heat resistance such as platinum, tungsten or gold.
請參閱圖4，該奈米碳管膜為質量密度小於3×10-4千克每平方米之膜狀結構。優選地，該奈米碳管膜包括至少一奈米碳管拉膜，該奈米碳管拉膜可通過採用一拉伸工具自一奈米碳管陣列直接拉取而獲得，其質量密度小於1.5×10-5千克每平方米，且該奈米碳管拉膜中之大多數奈米碳管通過凡德瓦爾力首尾相連，優選地，該奈米碳管拉膜中之大多數奈米碳管沿該第一電極121往第二電極131延伸。該奈米碳管拉膜之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，於2008年8月16日公開之第096105016號台灣專利申請。為節省篇幅，僅引用於此，但上述申請所有技術揭露也應視為本發明申請技術揭露之一部分。當該膜狀結構由多層奈米碳管拉膜層疊構成時，其厚度不大於10微米。 Referring to FIG. 4, the carbon nanotube film is a film structure having a mass density of less than 3×10 -4 kg per square meter. Preferably, the carbon nanotube film comprises at least one carbon nanotube film, and the carbon nanotube film can be obtained by directly drawing from a carbon nanotube array by using a stretching tool, and the mass density is less than 1.5×10 -5 kg per square meter, and most of the carbon nanotubes in the carbon nanotube film are connected end to end by van der Waals force, preferably, most of the nanoparticles in the carbon nanotube film The carbon tube extends along the first electrode 121 toward the second electrode 131. For the structure of the carbon nanotube film and the preparation method thereof, please refer to Taiwan Patent Application No. 096105016, which was filed on Feb. 12, 2008, to the same. In order to save space, only the above is cited, but all the technical disclosures of the above application are also considered as part of the technical disclosure of the present application. When the film-like structure is composed of a laminate of a plurality of layers of carbon nanotubes, the thickness thereof is not more than 10 μm.
該奈米碳管線狀結構包括至少一奈米碳管線，且該奈米碳管線狀結構之線徑不大於10微米。該奈米碳管線包括複數沿該奈米碳管 線軸向方向延伸或旋轉之奈米碳管。該奈米碳管線狀結構可為由複數奈米碳管線併排組成之束狀結構，也可為相互扭轉組成之絞線結構。另外，該奈米碳管結構可由複數該奈米碳管線狀結構平行設置、相互纏繞或相互編織組成。優選地，該奈米碳管線通過對一有序奈米碳管膜進行機械力扭轉或有機溶劑處理而獲得。該通過有機溶劑處理而獲得之非扭轉之奈米碳管線包括複數沿奈米碳管線長度方向排列並首尾相連之奈米碳管。該通過有機溶劑處理獲得之奈米碳管線及其製備方法請參見范守善等人於2005年12月16日申請，於2007年7月1日公開之第094144790號台灣專利申請。為節省篇幅，僅引用於此，但上述申請所有技術揭露也應視為本發明申請技術揭露之一部分。 The nanocarbon line-like structure comprises at least one nano carbon line, and the nano carbon line structure has a wire diameter of no more than 10 microns. The nano carbon pipeline includes a plurality of carbon nanotubes along the carbon nanotube A carbon nanotube that extends or rotates in the axial direction of the wire. The nanocarbon pipeline-like structure may be a bundle structure composed of a plurality of nano carbon pipelines side by side, or a twisted wire structure composed of mutually twisted. In addition, the carbon nanotube structure may be composed of a plurality of the carbon carbon line-like structures arranged in parallel, intertwined or interwoven. Preferably, the nanocarbon line is obtained by mechanically twisting or organic solvent treatment of an ordered carbon nanotube film. The non-twisted nanocarbon pipeline obtained by the organic solvent treatment comprises a plurality of carbon nanotubes arranged along the length direction of the nanocarbon pipeline and connected end to end. The nanocarbon pipeline obtained by the organic solvent treatment and the preparation method thereof can be found in the Taiwan Patent Application No. 094144790, which was filed on Jan. 16, 2005, to the same. In order to save space, only the above is cited, but all the technical disclosures of the above application are also considered as part of the technical disclosure of the present application.
請參閱圖5及圖6，本實施例中，該白熾光源150為單層奈米碳管拉膜，其厚度於1奈米到100奈米之間。該白熾光源顯示裝置100於工作時，其行電極引線120及列電極引線130均與一驅動電路電連接，每一個白熾光源150均對應于一行電極引線120與一列電極引線130。當要顯示一動態影像時，先取第一楨影像，計算出形成第一楨影像所需要之白熾光源150光源所於之行電極引線120及列電極引線130。該驅動電路發出一行電極引線120選擇脈衝，選擇第一個行電極引線120，並發出一列電極引線130掃描脈衝，對該列電極引線130進行掃描，驅動被選中之行電極引線120上需要發光之白熾光源150發光；然後再發出第二個行電極引線120選擇脈衝及另一個列電極引線130掃描脈衝，驅動該行電極引線120上需要發光之白熾光源150；如此迴圈，對每一行電極引線120均選中一次，完成一個顯示週期，由於每個行電極引線120選擇脈衝之間之時間間隔很短，人之視覺無法分別，故，可讓觀眾同時觀 察到第一楨影像。然後，於取出該動態影像中之下一楨影像進行顯示。可以理解，當於顯示第一楨影像時，該不同行電極引線120之間之白熾光源150相互點亮之時間差需要足夠短，才能讓觀眾觀看到完整之影像；而當需要顯示第二楨影像時，顯示第一楨影像中之白熾光源150必須能夠及時熄滅，從而不幹擾第二楨影像之顯示，不產生“拖尾”現象。 Referring to FIG. 5 and FIG. 6 , in the embodiment, the incandescent light source 150 is a single-layer carbon nanotube film, and the thickness thereof is between 1 nm and 100 nm. When the incandescent light source display device 100 is in operation, both the row electrode lead 120 and the column electrode lead 130 are electrically connected to a driving circuit, and each of the incandescent light sources 150 corresponds to one row of electrode leads 120 and one column of electrode leads 130. When a moving image is to be displayed, the first image is taken first, and the row electrode lead 120 and the column electrode lead 130 of the incandescent light source 150 required to form the first image are calculated. The driving circuit sends a row of electrode lead 120 selection pulses, selects the first row electrode lead 120, and emits a column of electrode lead 130 scanning pulses, scans the column electrode lead 130, and drives the selected row electrode lead 120 to emit light. The incandescent light source 150 emits light; then emits a second row electrode lead 120 selection pulse and another column electrode lead 130 scan pulse to drive the incandescent light source 150 on the row electrode lead 120 that needs to emit light; thus looping, for each row of electrodes The leads 120 are all selected once to complete a display period. Since the time interval between the selection pulse of each row electrode lead 120 is short, the human vision cannot be separated, so that the viewer can simultaneously view The first image was observed. Then, the next image in the motion picture is taken out for display. It can be understood that when the first image is displayed, the time difference between the incandescent light sources 150 between the different row electrode leads 120 needs to be short enough for the viewer to view the complete image; and when the second image needs to be displayed When the incandescent light source 150 in the first image is displayed, it must be extinguished in time, so as not to interfere with the display of the second image, and no "tailing" phenomenon occurs.
由於奈米碳管結構具備單位面積熱容小、比表面積大及熱輻射係數之特性，從而該奈米碳管結構於一加熱脈衝之驅動下，能夠獲得極短之回應時間，故能夠成功顯示動態影像。請參閱圖7，為一2毫米×8毫米之奈米碳管拉膜之回應時間圖，該奈米碳管膜之單位面積熱容小於1.7×10-6焦耳每平方厘米開爾文，該加熱脈衝為時間寬度為6毫秒及強度為103毫安培之電流脈衝。由圖中可看出，該奈米碳管拉膜於該加熱脈衝之驅動下，其從開始到點亮之時間僅為0.8毫秒，從停止加熱到熄滅之時間僅為0.7毫秒。遠短於液晶顯示裝置之畫素回應時間。如此短之回應時間主要取決於該奈米碳管拉膜不到1.7×10-6焦耳每平方厘米開爾文之單位面積熱容，可以理解，該回應時間隨著該白熾光源150之單位面積熱容之增大而增大，當該白熾光源150之單位面積熱容達到2×10-4焦耳每平方厘米開爾文時，其回應時間也相應達到40毫秒以上。 Since the carbon nanotube structure has the characteristics of small heat capacity per unit area, large specific surface area, and thermal emissivity, the carbon nanotube structure can be driven by a heating pulse to obtain a very short response time, so that it can be successfully displayed. Motion picture. Please refer to FIG. 7 , which is a response time diagram of a 2 mm×8 mm carbon nanotube film. The heat capacity per unit area of the carbon nanotube film is less than 1.7×10 -6 joules per square centimeter Kelvin. It is a current pulse with a time width of 6 milliseconds and an intensity of 103 milliamps. As can be seen from the figure, the carbon nanotube film is driven by the heating pulse, and the time from the start to the lighting is only 0.8 milliseconds, and the time from the stop of heating to the extinction is only 0.7 milliseconds. Far shorter than the pixel response time of the liquid crystal display device. Such a short response time mainly depends on the heat capacity per unit area of the carbon nanotube film of less than 1.7×10 -6 joules per square centimeter Kelvin. It can be understood that the response time is the heat capacity per unit area of the incandescent light source 150. When it increases, the heat capacity per unit area of the incandescent light source 150 reaches 2×10 −4 joules per square centimeter Kelvin, and the response time also reaches 40 milliseconds or more.
本實施例用該單層奈米碳管拉膜製備一16×16之畫素陣列，其於真空或惰性氣體保護下工作，每一奈米碳管膜之面積為100微米×300微米。請參閱圖8及圖9，單個奈米碳管拉膜隨著驅動功率之增加，其亮度呈指數增長，當於功率0.08瓦特時其達到之亮度為6400坎德拉每平方米，即該由奈米碳管膜製備之16×16之畫素陣 列之總功耗於1瓦特左右，功耗低，亮度大。而該奈米碳管膜於11.5毫安培培之電流驅動下，其能夠於1740K下穩定發光，其發光亮度為530坎德拉每平方米，所需之驅動電流比較小。由於其驅動功耗及驅動電流都比較低，其驅動電壓也非常低，該奈米碳管拉膜之最小驅動電壓可達到1伏特，利於對應驅動電路之設計。 In this embodiment, a 16×16 pixel array is prepared by using the single-layer carbon nanotube film, which is operated under vacuum or inert gas, and the area of each carbon nanotube film is 100 μm×300 μm. Referring to Figures 8 and 9, the brightness of a single carbon nanotube film increases exponentially with increasing drive power. When the power is 0.08 watts, the brightness is 6400 cd/m2, which is the carbon nanometer. Tube film preparation 16×16 pixel array The total power consumption of the column is about 1 watt, the power consumption is low, and the brightness is large. The carbon nanotube film is driven by a current of 11.5 mA, and it can stably emit light at 1740 K. The luminance of the carbon nanotube is 530 cd/m2, and the required driving current is relatively small. Because its driving power consumption and driving current are relatively low, its driving voltage is also very low. The minimum driving voltage of the carbon nanotube film can reach 1 volt, which is beneficial to the design of the corresponding driving circuit.
該白熾光源顯示裝置，採用包括奈米碳管結構之白熾光源用作畫素點，具有極短之回應時間，能夠成功顯示動態影像，使白熾光源成功應用到顯示領域顯示動態影像。且該白熾光源顯示裝置功耗小、亮度大、驅動電流低。相對於相對傳統之冷陰極管顯示裝置，該白熾光源顯示裝置不需要磷光激發，不需要螢光層，結構非常簡單，相對於傳統之液晶顯示裝置，該白熾光源顯示裝置沒有視角之限制。另外，由於奈米碳管結構本身之尺寸很小，應用奈米碳管結構作為光源之白熾光源顯示裝置可實現高解析度顯示。 The incandescent light source display device uses an incandescent light source including a carbon nanotube structure as a pixel point, has a very short response time, can successfully display a dynamic image, and enables an incandescent light source to be successfully applied to a display field to display a dynamic image. Moreover, the incandescent light source display device has low power consumption, high brightness, and low driving current. Compared with the relatively conventional cold cathode tube display device, the incandescent light source display device does not require phosphorescence excitation, does not require a fluorescent layer, and has a very simple structure. Compared with the conventional liquid crystal display device, the incandescent light source display device has no viewing angle limitation. In addition, since the size of the carbon nanotube structure itself is small, an incandescent light source display device using a carbon nanotube structure as a light source can realize high-resolution display.
請參閱圖10，本發明實施例提供一種白熾光源顯示裝置之製備方法，其包括如下步驟。 Referring to FIG. 10, an embodiment of the present invention provides a method for fabricating an incandescent light source display device, which includes the following steps.
步驟S101：提供一基板。該基板為一絕緣基板，如陶瓷絕緣基板、玻璃絕緣基板、樹脂絕緣基板、石英絕緣基板等。基板大小與厚度不限，本領域技術人員可根據實際需要選擇。本實施例中，該基板優選為一玻璃基板。 Step S101: providing a substrate. The substrate is an insulating substrate such as a ceramic insulating substrate, a glass insulating substrate, a resin insulating substrate, a quartz insulating substrate, or the like. The size and thickness of the substrate are not limited, and those skilled in the art can select according to actual needs. In this embodiment, the substrate is preferably a glass substrate.
步驟S102：形成複數間隔設置之行電極引線於該基板表面。 Step S102: forming a plurality of spaced-apart row electrode leads on the surface of the substrate.
步驟S103：形成複數間隔設置之列電極引線於該基板表面，且該 複數行電極引線及複數列電極引線相互交叉設置形成網路，每兩個相鄰之行電極引線與與其交叉之每兩個相鄰之列電極引線相互交叉形成一網格，該複數行電極引線與列電極引線彼此絕緣。該行電極引線及列電極引線通過絲網印刷法、濺射法或蒸鍍法設置於該基板上。具體地，於製備過程中，使該複數行電極引線與複數列電極引線交叉設置，同時，需確保行電極引線與列電極引線之間電絕緣，形成可定址電路，以便在於不同行電極引線與列電極引線之間施加可定址電壓。本實施例中，該行電極引線沿該列電極引線之軸向方向進一步延伸出一第一電極，該列電極引線沿該行電極引線之軸向方向進一步延伸出一第二電極，該第一電極與第二電極之間具有一間隙，用於容置該奈米碳管結構。採用絲網印刷法製備複數行電極引線、複數第一電極、複數列電極引線及複數第二電極，其具體包括以下步驟：首先，採用絲網印刷法於該基板上印製複數平行且等間隔設置之行電極引線及第一電極。其次，採用絲網印刷法於行電極引線與待形成之列電極引線交叉處印製複數絕緣體。最後，採用絲網印刷法於該基板上印製複數平行且等間隔設置之列電極引線及第二電極，且複數行電極引線與複數列電極引線相互交叉形成複數網格。本實施例中，通過絲網印刷法製備行電極引線、第一電極、列電極引線及第二電極之材料為導電漿料。該導電漿料之成分包括金屬粉、低熔點玻璃粉與黏結劑。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。該導電漿料中，金屬粉之重量比為50%~90%，低熔點玻璃粉之重量比為2%~10%，黏結劑之重量比為10%~40%。 Step S103: forming a plurality of spaced-apart column electrode leads on the surface of the substrate, and the The plurality of row electrode leads and the plurality of column electrode leads are disposed to intersect each other to form a network, and each of the two adjacent row electrode leads intersects with each of the two adjacent column electrode leads crossing the same to form a grid, and the plurality of row electrode leads The column electrode leads are insulated from each other. The row electrode lead and the column electrode lead are provided on the substrate by a screen printing method, a sputtering method, or a vapor deposition method. Specifically, in the preparation process, the plurality of row electrode leads and the plurality of column electrode leads are disposed to cross each other, and at the same time, it is necessary to ensure electrical insulation between the row electrode leads and the column electrode leads to form an addressable circuit, so as to be different from the row electrode leads and An addressable voltage is applied between the column electrode leads. In this embodiment, the row electrode leads further extend a first electrode along the axial direction of the column electrode lead, and the column electrode lead further extends a second electrode along the axial direction of the row electrode lead, the first There is a gap between the electrode and the second electrode for accommodating the carbon nanotube structure. The plurality of row electrode leads, the plurality of first electrodes, the plurality of column electrode leads and the plurality of second electrodes are prepared by screen printing, and the method comprises the following steps: first, printing multiple parallel and equal intervals on the substrate by screen printing The row electrode lead and the first electrode are arranged. Next, a plurality of insulators are printed by screen printing at the intersection of the row electrode leads and the column electrode leads to be formed. Finally, a plurality of parallel and equally spaced column electrode leads and a second electrode are printed on the substrate by screen printing, and the plurality of row electrode leads and the plurality of column electrode leads cross each other to form a complex grid. In this embodiment, the material for preparing the row electrode lead, the first electrode, the column electrode lead, and the second electrode by a screen printing method is a conductive paste. The composition of the conductive paste includes metal powder, low melting point glass powder and a binder. Among them, the metal powder is preferably silver powder, and the binder is preferably terpineol or ethyl cellulose. In the conductive paste, 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 10% to 40%.
步驟S104：形成複數第一電極與第二電極於上述基板表面，於每個網格中間隔形成一第一電極與一第二電極。 Step S104: forming a plurality of first electrodes and second electrodes on the surface of the substrate, and forming a first electrode and a second electrode at intervals in each of the grids.
步驟S105：提供一奈米碳管結構覆蓋該基板並與第一電極與第二電極電接觸，該奈米碳管結構中奈米碳管基本沿第一電極向第二電極延伸。於本實施例中，還包括如下步驟：製備至少一奈米碳管結構；將至少一奈米碳管結構沿著第一電極向第二電極延伸之方向直接鋪設於設置有電極與電極引線之絕緣基底上，形成一奈米碳管薄膜結構，且使該奈米碳管結構中之多數奈米碳管基本自第一電極往第二電極延伸。可以理解，於鋪設時，可直接將該奈米碳管結構覆蓋於該基板上，通過其本身之黏性直接黏附於第一電極及第二電極表面。由於奈米碳管結構本身具有良好之導電性，可直接與第一電極及第二電極接觸實現電連接。當該奈米碳管結構為一單層奈米碳管拉膜時，該奈米碳管拉膜之奈米碳管之排列方向基本相同，鋪設時確保奈米碳管拉膜中之奈米碳管基本沿同一方向從第一電極往第二電極延伸。且為了將該奈米碳管拉膜更牢固之固定於第一電極及第二電極之上，並更有效之與第一電極及第二觸電連接，將至少一奈米碳管拉膜鋪設覆蓋於整個基板上之前，還可先於第一電極及第二電極上塗敷一層導電膠。或包括如下步驟：形成一固定元件於該行電極引線及列電極引線上。從而使該奈米碳管結構與該行電極引線及列電極引線結合更牢固，可以理解，該固定元件之形成方法可為絲網印刷法、濺射法或蒸鍍法。 Step S105: providing a carbon nanotube structure covering the substrate and electrically contacting the first electrode and the second electrode, wherein the carbon nanotube structure extends substantially along the first electrode toward the second electrode. In this embodiment, the method further includes the steps of: preparing at least one carbon nanotube structure; laying the at least one carbon nanotube structure directly along the direction in which the first electrode extends toward the second electrode, and disposed on the electrode and the electrode lead On the insulating substrate, a carbon nanotube film structure is formed, and a majority of the carbon nanotubes in the carbon nanotube structure extend substantially from the first electrode to the second electrode. It can be understood that, when laying, the carbon nanotube structure can be directly covered on the substrate, and directly adhered to the first electrode and the second electrode surface by its own adhesiveness. Since the carbon nanotube structure itself has good electrical conductivity, it can be directly connected to the first electrode and the second electrode to achieve electrical connection. When the carbon nanotube structure is a single-layer carbon nanotube film, the arrangement of the carbon nanotubes of the carbon nanotube film is substantially the same, and the nanometer in the carbon nanotube film is ensured during laying. The carbon tubes extend from the first electrode to the second electrode in substantially the same direction. And in order to fix the carbon nanotube film more firmly on the first electrode and the second electrode, and more effectively connect with the first electrode and the second electric contact, at least one carbon nanotube film is laid and covered. A layer of conductive paste may also be applied to the first electrode and the second electrode before the entire substrate. Or include the steps of forming a fixing member on the row electrode lead and the column electrode lead. Therefore, the carbon nanotube structure is more firmly bonded to the row electrode lead and the column electrode lead. It can be understood that the fixing element can be formed by a screen printing method, a sputtering method or an evaporation method.
步驟S106：切割該奈米碳管結構，使不同網格內之奈米碳管結構斷開。具體地，可採用一鐳射源及一發射鏡，該反射鏡將該鐳射源發出來之鐳射反射到該基板上之奈米碳管結構，對該奈米碳管結構進行切割，調整該反射鏡之角度，即可調整該鐳射於該奈米碳管結構切割之位置。該切割奈米碳管結構之方法為鐳射燒蝕法 、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結構，具體包括以下步驟：首先，採用一定寬度之鐳射光束沿著每個行電極引線進行掃描，去除不同行之第二電極之間之奈米碳管結構；其次，採用一定寬度之鐳射光束沿著每個列電極引線進行掃描，去除列電極引線與相鄰第一電極之間之奈米碳管結構。可以理解，上述採用鐳射燒蝕法切割奈米碳管結構之方法還可通過較窄之鐳射光束多次掃描實現。 Step S106: cutting the carbon nanotube structure to break the carbon nanotube structure in different grids. Specifically, a laser source and a mirror can be used, and the mirror reflects the laser light emitted from the laser source to the carbon nanotube structure on the substrate, and cuts the carbon nanotube structure to adjust the mirror. From the angle, the laser can be adjusted to the position where the carbon nanotube structure is cut. The method of cutting the carbon nanotube structure is laser ablation , electron beam scanning or heat blowing. In this embodiment, the laser ablation method is preferably used to cut the carbon nanotube structure, and specifically includes the following steps: First, a laser beam with a certain width is scanned along each row electrode lead to remove between the second electrodes of different rows. The carbon nanotube structure; secondly, a laser beam of a certain width is scanned along each column electrode lead to remove the carbon nanotube structure between the column electrode lead and the adjacent first electrode. It can be understood that the above method of cutting the carbon nanotube structure by laser ablation can also be realized by multiple scanning of a narrow laser beam.
該白熾光源顯示裝置之製備方法，步驟較少，工藝比較簡單，成本較低。 The preparation method of the incandescent light source display device has fewer steps, the process is relatively simple, and the cost is low.
該白熾光源顯示裝置採用包括奈米碳管結構之白熾光源直接顯示影像，利用該奈米碳管結構極短之回應時間，使該白熾光源顯示裝置能夠顯示動態影像。 The incandescent light source display device directly displays an image by using an incandescent light source including a carbon nanotube structure, and the incandescent light source display device can display a dynamic image by using the carbon nanotube structure with a very short response time.
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。舉凡習知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 those skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.
100‧‧‧白熾光源顯示裝置 100‧‧‧incandescent light source display device
110‧‧‧基板 110‧‧‧Substrate
120‧‧‧行電極引線 120‧‧‧ row electrode lead
121‧‧‧第一電極 121‧‧‧First electrode
130‧‧‧列電極引線 130‧‧‧ column electrode lead
131‧‧‧第二電極 131‧‧‧second electrode
140‧‧‧絕緣體 140‧‧‧Insulator
150‧‧‧白熾光源 150‧‧‧incandescent light source
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| US5956003A (en) * | 1996-07-24 | 1999-09-21 | Hypres, Inc. | Flat panel display with array of micromachined incandescent lamps |
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| JPH01235992A (en) * | 1988-03-16 | 1989-09-20 | Brother Ind Ltd | Flat panel color display device |
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