1270100 五、發明說明（1) 【發明所屬之技術領域】 本發明提供一種平面型雙面顯示器，特別涉及一種他， 面場發射顯示器。 【先前技術】 近年來，平面顯示器發展迅速，已被廣泛應用於個人 電腦、移動通訊及消費性電子產品等領域，成為資訊技術 之一大平臺。目前應用較為普遍之平面顯示器有液晶顯示 器（LCD)、電漿顯示器（pDp)及場發射顯示器（fed) 專。其中’場發射顯示器與其他平面型顯示器相比，具有 對比度更高、視角更廣、亮度更高、能量消耗更低、反應 時間更短以及工作溫度更寬等優點。目前大多數平面型 示器均為正面顯示，背面並不顯示。然而，在大型面板顯 示應用中’如父通指示牌、各種大型場合之資訊顯示板及 環形電影院等，需要同時雙面顯示之場合，傳統方法係採 用兩個單面顯示板置於相反方向，m到前後都可觀看之 目的，但疋，参L —此-每::羞^^31^二驅^ -動-争-，成本太T%，且 線路複雜，易造成顯示器之可靠性差，不利於實際推廣應 用。通常平面型顯示器正反兩面係懸空的，其背面亦可用 作平面顯示，製成正反兩面都可以顯示之平面顯示器，以 充分利用顯示空間，達到節省成本提高顯示可靠性之目 的。 為實現雙面顯示，中國科學院電子學研究所之中國大 陸專利申請第0 0 1 3 3 684. 3號揭示一種雙面場發射陰極真空 微電子發光器件，請參閱第一圖，該發光器件包括陽極引1270100 V. INSTRUCTION DESCRIPTION (1) Technical Field of the Invention The present invention provides a flat type double-sided display, and more particularly to a surface field emission display. [Prior Art] In recent years, flat panel displays have developed rapidly and have been widely used in personal computers, mobile communications, and consumer electronic products, and have become a platform for information technology. Currently, flat-panel displays that are commonly used include liquid crystal display (LCD), plasma display (pDp), and field emission display (fed). Among them, field emission displays have higher contrast, wider viewing angle, higher brightness, lower energy consumption, shorter reaction time and wider operating temperature than other flat-type displays. Most flat displays are currently displayed on the front and not on the back. However, in large-panel display applications, such as the parent-passage sign, information display panels for various large-scale occasions, and circular cinemas, where simultaneous double-sided display is required, the conventional method uses two single-sided display panels placed in opposite directions. m can be viewed before and after, but 疋, L L - this - every:: shame ^ ^ 31 ^ two drive ^ - move - contention, the cost is too T%, and the line is complex, easy to cause poor reliability of the display, Not conducive to the actual promotion and application. Usually, the front and back sides of the flat display are suspended, and the back side can also be used as a flat display to make a flat display that can be displayed on both sides of the front and back, so as to make full use of the display space, thereby achieving cost saving and display reliability. In order to realize double-sided display, Chinese Patent Application No. 0 0 1 3 3 684. 3 of the Institute of Electronics, Chinese Academy of Sciences discloses a double-sided field emission cathode vacuum microelectronic light-emitting device, see the first figure, the light-emitting device includes Anode lead
1270100 五、發明說明（2) --- 線1，陰極場發射矽尖陣列2，螢光屏3，消氣劑4及陰極引 線5。其中，於兩螢光屏3之間設有一兩面都發射電子之陰， 極，该陰極之發射體採用矽尖陣列2，通過矽尖陣列2兩面 都發射電子轟擊其前面螢光屏3，從而實現雙面顯示之目 的。其中’石夕尖陣列2與螢光屏3之陽極之間距離為2〜3 〇微 米，需要較高驅動電壓才能實現電子之場發射顯示。而 且’这種直接雙面顯示的結構應用於顯示圖像時，難以控 制灰度、売度。另外，採用該發光器件兩面所顯示圖像各 不相同，兩面顯示圖像係手性對稱，雙面顯示係相反之圖 像。此外，該器件之兩個發射腔互相獨立，因此在抽真空 時需分別處理，不利於製備。 、有鑒於此，k供一種驅動電壓低、顯示圖像可控、結 構簡便及成本低之雙面場發射顯示器實為必要。 【内容】 ' 為克服現有技術之雙面場發射顯示器之驅動電壓高、 顯示圖像不可控、結構複雜及成本高等不足，本發明提供 一種驅動電壓低、顯示圖像可控、結構簡便及成本低之雙 面場發射顯示器。 為實現上述目的，本發明提供一種雙面場發射顯示 器，其包括兩塊相互平行之螢光屏；以及位於兩螢光屏之 間電子發射結構；所述螢光屏分別包括透明基板及形成於 其表面之陽極與螢光層；所述電子發射結構將顯示器之内 部空間分隔為兩部分，其包括一不透明絕緣基底，該絕緣 基底具有兩相反表面，分別面對所述兩塊螢光屏，所述絕1270100 V. INSTRUCTIONS (2) --- Line 1, cathode field emission tip array 2, phosphor screen 3, getter 4 and cathode lead 5. Wherein, between the two phosphor screens 3, a cathode and a cathode for emitting electrons are arranged on both sides, and the emitter of the cathode adopts a tip array 2, and electrons are bombarded on both sides of the dome array 2 to bombard the front fluorescent screen 3 thereof. Achieve double-sided display. The distance between the 'Shihide array 2 and the anode of the fluorescent screen 3 is 2 to 3 〇 micrometers, and a higher driving voltage is required to realize the electron field emission display. Moreover, when such a structure of direct double-sided display is applied to display an image, it is difficult to control gradation and twist. In addition, the images displayed on both sides of the light-emitting device are different, the images on both sides are symmetrical, and the two-sided display is the opposite image. In addition, the two emission chambers of the device are independent of each other, so they need to be separately processed during vacuuming, which is not conducive to preparation. In view of this, it is necessary to provide a double-sided field emission display with low driving voltage, controllable display image, simple structure and low cost. [Contents] In order to overcome the shortcomings of the prior art double-sided field emission display, such as high driving voltage, uncontrollable display image, complicated structure and high cost, the present invention provides a low driving voltage, controllable display image, simple structure and cost. Low double-sided field emission display. To achieve the above object, the present invention provides a double-sided field emission display comprising two mutually parallel phosphor screens; and an electron emission structure between the two phosphor screens; the phosphor screens respectively comprise a transparent substrate and are formed on An anode and a phosphor layer on a surface thereof; the electron emission structure partitions an internal space of the display into two parts, and includes an opaque insulating substrate having two opposite surfaces facing the two phosphor screens, respectively Said absolutely
1270100 五、發明說明（3) 緣基底之兩表面分別對稱形 及複數列電極；各行電極與 該絕緣基底之材料包括 面上形成之行電極可為陰極 或陰極；該電子發射體選自 他具有微尖結構之場發射材 體都正對於相應之熒光層。 本發明之進一步改進在 對關於絕緣基底面對稱之相 關於絕緣基底中心軸對稱之 用一套驅動系統實現雙面顯 另外，所述絕緣基底之 孔’便於顯示器内部同時抽 相較於現有技術，本發 電極雙顯示屏結構，充分利 —柵極結構，進一步降低場 耗降低，並通過上述行列電 屏顯示相同圖像；同時，通 套驅動系統之成本。 【圖式簡單說明】 第一圖係現有技術之雙 弟一圖係本發明場發射 構示意圖； 成有複數行電極、電子發射體 列電極之間有絕緣層分隔。 陶瓷材料；所述絕緣基底兩表 或栅極，列電極則相應為柵極 碳納米管陣列、矽尖陣列或其 料’而且每個陰極上電子發射 於該雙面場發射顯示器中每一 同行電極互相電連接，每一對 列電極互相電連接，因此可採 示相同圖像。 非％發射邊緣區域形成有通 真空。 明之雙面場發射顯示器採用三 用顯示屏之雙面空間；再加上 發射之驅動電壓，結果使得能 極連接方式，可實現兩面顯示 過共用一套驅動系統，節省一 面場發射顯示器結構示意圖； 顯不之一個顯示單元原理結 第三圖係本發明雙面場發射顯示器之行電極連接示咅1270100 V. DESCRIPTION OF THE INVENTION (3) The two surfaces of the edge substrate are symmetrically shaped and the plurality of columns are respectively arranged; the material of each row electrode and the insulating substrate includes a row electrode formed on the surface, which may be a cathode or a cathode; the electron emitter is selected from the group consisting of The field emitter material of the microtip structure is directed to the corresponding phosphor layer. A further improvement of the present invention achieves double-sided display with a set of drive systems symmetrically about the central axis of the insulating substrate with respect to the plane of the insulating substrate. The hole of the insulating substrate facilitates simultaneous extraction of the interior of the display compared to the prior art. The dual-display structure of the hair electrode of the present invention has a full benefit of the gate structure, further reducing the field consumption reduction, and displaying the same image through the above-mentioned row and screen electric screen; meanwhile, the cost of the through-cup driving system. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic diagram of the field emission structure of the prior art in the prior art; a plurality of row electrodes and electron emitter columns are separated by an insulating layer. a ceramic material; the insulating substrate has two meters or gates, and the column electrodes are correspondingly a gate carbon nanotube array, a tip array or a material thereof; and each cathode emits electrons on each of the two-sided field emission display The electrodes are electrically connected to each other, and each pair of column electrodes are electrically connected to each other, so that the same image can be taken. The non-% emission edge region is formed with a vacuum. Ming's double-sided field emission display adopts the double-sided space of the three-purpose display screen; together with the driving voltage of the emission, the result is a pole connection mode, which can realize the sharing of one driving system on both sides, and save the structure diagram of the field emission display; A display unit principle diagram of the third embodiment is a row electrode connection demonstration of the double-sided field emission display of the present invention
12701001270100
第四圖係本發明雙面場發射顯示器之列電極連接示意 五、發明說明（4) 圖； 圖 【實施方式】 下面結合附圖對本發明作進一步詳細說明。 請參閱第二圖，第二圖為本發明場發射顯示哭之一個 顯示單元，即一包括三原色（RGB)之像素原理結構^意 圖’整個顯示結構由大量此像素排列構成。$種姓構^括 之螢光屏10及10,；以及位於兩螢光屏… ]Λ， 電子發射結構2G °螢光屏iq包括透明基板 11(如玻璃）' 形成於透明基板u表面上之陽極12、形成於 陽極12上之瑩光層13及覆蓋螢光層13之鋁膜14，螢光詹13 具有三種類型，分別代表三原色，即紅（Red)、綠 (jreen) '藍（Blue)三種螢光層（圖未分別標示），每三種 ϋ層Λ一Λ’通過它們之組合能顯示各種顏色。榮光屏 12, 之結構相同，包括透明基板1Γ 、陽極 12 、音先層13及紹膜14’。電子發射結構2〇包括一不透 ίΐΐίΖ?邑緣基底28之材料包括陶兗材料，其異有 表面之第二表面282，面向螢光屏10之第一 綾Μ 951。4 夕個陰極26及與該陰極26相間之多個絕 成i Μ 去上形成有發射體27 ,該絕緣層251上形 ^有柵極25。同樣，於絕緣基底28面向螢光屏1〇,之第二 體2面7’28、2= = 1成^2相同結構’包括陰極26’、發射 、-巴緣層251及栅極25’。其中，發射額，分4 is a schematic diagram of a column electrode connection of a double-sided field emission display of the present invention. 5. Description of the Invention (4) FIG. 1 is a more detailed description of the present invention with reference to the accompanying drawings. Referring to the second figure, the second figure is a display unit for the field emission display crying of the present invention, that is, a pixel principle structure including three primary colors (RGB). The entire display structure is composed of a large number of such pixel arrangements. The fluorescent screens 10 and 10, and the two fluorescent screens are located on the surface of the transparent substrate u. The electron emitting structure 2G ° fluorescent screen iq includes a transparent substrate 11 (such as glass) formed on the surface of the transparent substrate u. The anode 12, the fluorescent layer 13 formed on the anode 12, and the aluminum film 14 covering the fluorescent layer 13 have three types, namely, the three primary colors, namely, red (red) and green (jreen) 'blue ( Blue) Three kinds of fluorescent layers (not shown separately), each of which can display various colors by a combination of them. The glory screen 12 has the same structure and includes a transparent substrate 1 阳极 , an anode 12 , a sound first layer 13 and a smear film 14 ′. The electron-emitting structure 2 includes a material that is impervious to the edge of the substrate 28, including a ceramic material having a second surface 282 of a different surface facing the first surface of the phosphor screen 10 951. 4 a cathode 26 and An emitter 27 is formed on the plurality of cathodes Between the cathodes 26, and the gate layer 25 is formed on the insulating layer 251. Similarly, the insulating substrate 28 faces the phosphor screen 1', and the second body 2 faces 7'28, 2==1 into the same structure 'including the cathode 26', the emission, the bapan layer 251, and the gate 25' . Among them, the amount of emission, points
1270100 五、發明說明（5) " 別正對於相應一種原色之螢光層13、；13，，發射體27、 2 7可選用碳納米管陣列、石夕尖陣列、金屬尖端或其他具 ， 有微尖結構之場發射材料，而碳納米管陣列之尖端較小， 更有利於尖端放電，降低電子發射之驅動電壓，並能提高 場發射之精f。 另外’電子發射結構2 0將本發明之雙面場發射顯示器 之内部空間分隔為兩部分，分別為前後兩發射腔3 i、 31’ ’在發射腔31、31，之邊緣圍有側壁3〇及3〇’ ，其與前 後兩螢光屏1 〇、1 〇，構成顯示器之外殼。在此，絕緣基底 2 8起到擋光作用，能消除正反兩面螢光層丨3、1 3，之互相 影響’從而形成兩個互不干擾之場發射區域。絕緣基底28 之非發射邊緣區域形成有通孔2 9，利用通孔2 9可將被分割 之前後兩發射腔31、31，連通起來，如此，在製備過程中 即可一次性將兩發射腔3丨、3 1，抽成真空，無需分別抽 氣，減少製程複雜性。另外，通孔2 9設於非場發射邊緣區 域’不會對場發射與顯示效果產生不良影響。 當顯示器工作時，於柵極25與陰極26之間以及柵極 2 5’與陰極26’之間同時施加不同電壓，以使發射體27、 刀別發射電子，電子在電場作用下轟擊螢光層a、 1 3 ’使之發光，所發之光通過透明絕緣層丨丨、n，而產生圖 像’即可達到雙面顯示圖像之效果。由於柵極2 5、2 5，之 存在’可貫現對電子發射之精確控制，而且發射體2 了、 2 7’在較低電壓下就能發射出電子，從而可降低電子發射 之驅動電壓，並降低能耗，成本也相應地減少。1270100 V. Inventive Note (5) " For a corresponding primary color of the fluorescent layer 13, 13, the emitter 27, 27 can be selected from a carbon nanotube array, a stone edge array, a metal tip or other, The field emission material has a microtip structure, and the tip of the carbon nanotube array is smaller, which is more favorable for the tip discharge, lowers the driving voltage of the electron emission, and can improve the field emission. In addition, the 'electron emission structure 20 divides the internal space of the double-sided field emission display of the present invention into two parts, which are the front and rear two emission chambers 3 i, 31'' respectively, and the side walls 3 are surrounded by the emission chambers 31 and 31. And 3〇', which is combined with the front and rear two screens 1 〇, 1 〇, to form the outer casing of the display. Here, the insulating substrate 28 functions as a light blocking function, which can eliminate the front and back phosphor layers 丨3, 13 and interact with each other to form two field emission regions which do not interfere with each other. The non-emitting edge region of the insulating substrate 28 is formed with a through hole 2 9, and the two emitting chambers 31, 31 before and after being divided can be connected by the through hole 29, so that the two emitting chambers can be disposed at one time during the preparation process. 3丨, 3 1, vacuum, no need to pump separately, reducing process complexity. In addition, the provision of the vias 29 in the non-field emission edge region does not adversely affect the field emission and display effects. When the display is in operation, different voltages are applied between the gate 25 and the cathode 26 and between the gate 25' and the cathode 26', so that the emitter 27 and the knife emit electrons, and the electrons bombard the fluorescent light under the electric field. The layers a, 1 3 ' make it emit light, and the emitted light passes through the transparent insulating layer 丨丨, n to produce an image 'to achieve the effect of displaying images on both sides. Due to the presence of the gates 2 5, 2 5, the precise control of the electron emission can be realized, and the emitter 2, 27 7 can emit electrons at a lower voltage, thereby reducing the driving voltage of the electron emission. And reduce energy consumption, and the cost is correspondingly reduced.
第12頁 1270100 五、發明說明（6) 。月併苓閱第二圖及第四圖，分別為太名乂 ::顯示器電極之行連接與列連接示意，。= 式有兩種情況：一種行電極為 電極之連接方 -種係行電極為柵極，列電極；為 ：極，·另 方式相同，在此以第-種情況為例UK;電 先將相同行之陰極相連接， 啐、，、田況月。 28兩表面上第一行之险】％彳二將/別位於不透明絕緣基底 接，再將位：絕 仃=相同方式連接（如第三圖所示）。而對於列拇極他^ 像時人們習慣上按從左到右之順序，因此列栅極 之連接應該將位於絕緣基底28兩表面上關於其中心稱 ,列冊極相連接’即將分別位於不透明絕緣基底28兩表J 之栅極250與柵極250’通過線路3 2,相連接，同 ^ ，極也按此相同方式連接（如第四圖所示） = 極按如此連接方式即可實現雙面顯示相同圖像。丁歹】電 此外，為使雙面顯示不同圖像，可採用兩套驅 〇 t，電極連接方式採用正反兩面獨立^^接—方^—^ 套驅動糸統對它們分別控制’即可實現正反兩面顯示不同 圖像。 絲土所述，本發明符合發明專利之要件，爰依法提出 專利申明。惟’以上所述者僅為本發明之較佳實施例，舉 凡燕悉本案技藝之人士，在援依本案發明精神所作之等效 修飾或變化，皆應包含於以下之申請專利範圍内。 第13頁 1270100 圖式簡單說明 構示意 單元原 極連接 極連接 圖， 理結 示意 示意 第一圖係現有技術之雙面場發射顯示器於 第二圖係本發明場發射顯示器之一個顯^ 構示意圖； 第三圖係本發明雙面場發射顯示器之行電 圖； 第四圖係本發明雙面場發射顯示器之列電 圖。 【主要元件符號說明】 螢光屏 10, 10， 透明基板 11，11， 陽極 12, 12， 螢光層 13, 13, 鋁膜 14, 14， 電子發射結構 20 柵極 2 5, 2 5， 陰極 26,26, 發射體 27, 27， 絕緣基底 28,28, 通孔 29,29， 側壁 30, 30, 發射腔 31， 31， 線路 32, 32, 絕緣層 251 ，251’ 絕緣基底第一 表面 281 絕緣基底第二 .表面 282Page 12 1270100 V. Description of invention (6). Month and the second and fourth pictures, respectively, are shown as the connection between the row and the column of the display electrode. There are two cases of the formula: one row electrode is the connection side of the electrode - the seed row electrode is the gate electrode, the column electrode; is: pole, · the other way is the same, here the first case is taken as an example; The cathodes of the same row are connected, 啐,,, 田况月. 28 The risk of the first line on both surfaces】%彳2 will be located on the opaque insulating substrate, and then the position: 仃 仃 = the same way to connect (as shown in the third figure). For the order of the thumb, the people are accustomed to the order from left to right, so the connection of the column gates should be located on both surfaces of the insulating substrate 28 with respect to their center, and the columns are connected to each other. The insulating substrate 28 has two gates J and 250 connected to the gate 250' via the line 3 2, and is connected in the same manner as the poles (as shown in the fourth figure). The same image is displayed on both sides. Ding Wei] In addition, in order to display different images on both sides, two sets of driving can be used, and the electrode connection method can be controlled by using the front and back sides of the two sides separately. Realize different images on both sides. According to the silk soil, the invention complies with the requirements of the invention patent, and the patent declaration is filed according to law. However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art of the present invention should be included in the following claims. Page 13 1270100 The drawing briefly illustrates the schematic diagram of the original pole connection diagram of the unit, and the schematic diagram schematically illustrates the first diagram of the prior art double-sided field emission display. The second diagram is a schematic diagram of the field emission display of the present invention. The third figure is a row diagram of the double-sided field emission display of the present invention; the fourth figure is an electrogram of the double-sided field emission display of the present invention. [Description of main component symbols] Fluorescent screen 10, 10, transparent substrate 11, 11, anode 12, 12, phosphor layer 13, 13, aluminum film 14, 14, electron emission structure 20 gate 2 5, 2 5, cathode 26, 26, emitter 27, 27, insulating substrate 28, 28, via 29, 29, sidewall 30, 30, emitter cavity 31, 31, line 32, 32, insulating layer 251, 251' first surface of insulating substrate 281 Insulating substrate second. Surface 282