TWI278893B - Power module of FED and power generation method thereof - Google Patents
Power module of FED and power generation method thereof Download PDFInfo
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1278893 五、發明說明(1) 【發明所屬之技術領域] 本發明係有關於一種場發射顯示器電源模組及其電源 產生方法,特別係關於一種用來驅動二極結構之場發射顯 示器之電源模組及其電源產生方法。 【先前技術】 場發射顯示器(Field Emission Display; FED)係 實現了陰極射線管(Cathode-Ray Tube ; CRT)平面化的 可能性,其顯像的方式類似陰極射線管的工作原理,都是 由陰極發射電子經由真空,且被陽極加速後激發螢光粉而 發亮,而兩者所使用之螢光粉皆相同,唯一的差別在於電 子的產生方式’一般CRT是利用加熱陰極來產生電子,而 FED則是利用電場將電子由陰極吸引出來。 參考第一圖,係為習知二極結構之金屬微尖端場發射 顯示器(FED)電源及元件剖面示意圖。習知的二極結構 之金屬微尖端場發射顯示器1係利用穩定的直流電源1 9當 作驅動電源,直流電源1 9連接於FED之陽極層1 〇與陰極層 1 4。當直流電源1 9動作時,連接於陰極層1 4之發射層1 6會 產生電子,再藉由陽極層1 〇與陰極層14間之高壓直流電源 19,用以加速電子撞擊設置在陽極層10上的螢光層12,並 且,使得螢光層1 2之螢光體被激發產生光。且利用絕緣層 1 8來阻隔各個發射層1 6間產生之電子,避免相互間電子的 干擾。上述說明中,發射層1 6其結構係為一金屬微尖端。 參考第二圖,係為習知二極結構之碳奈米管(carbon nano -tube)場發射顯示器電源及元件剖面示意圖。習知的1278893 V. INSTRUCTION DESCRIPTION (1) Technical Field of the Invention The present invention relates to a field emission display power module and a power generation method thereof, and more particularly to a power mode for driving a field emission display of a two-pole structure Group and its power generation method. [Prior Art] The Field Emission Display (FED) system realizes the possibility of planarization of a cathode ray tube (CRT), and its imaging method is similar to that of a cathode ray tube. The cathode emits electrons through the vacuum, and is accelerated by the anode to excite the phosphor powder to illuminate, and the phosphor powder used by both is the same. The only difference is the way the electrons are generated. Generally, the CRT uses a heated cathode to generate electrons. The FED uses an electric field to attract electrons from the cathode. Referring to the first figure, it is a cross-sectional view of a metal microtip field emission display (FED) power supply and components of a conventional two-pole structure. The conventional two-pole metal micro-tip field emission display 1 utilizes a stable DC power source 19 as a driving power source, and a DC power source 19 is connected to the anode layer 1 and the cathode layer 14 of the FED. When the DC power source 19 operates, the emitter layer 16 connected to the cathode layer 14 generates electrons, and the high voltage DC power source 19 between the anode layer 1 and the cathode layer 14 is used to accelerate the electron impact on the anode layer. The phosphor layer 12 on the 10, and the phosphor of the phosphor layer 12 is excited to generate light. The insulating layer 18 is used to block electrons generated between the respective emitter layers 16 to avoid mutual electron interference. In the above description, the emissive layer 16 has a structure which is a metal microtip. Referring to the second figure, it is a cross-sectional view of a carbon nano-tube field emission display power source and components of a conventional two-pole structure. Conventional
第6頁 米管場 微尖端 構之碳 成,其 射顯示 ’不論 ’其皆 驅動方 用於薄 尚待驗 於亮度 極結構 電流亦 發射顯示器 場發射顯示 奈米管場發 他各項元件 器1相同。 習知二極結 利用直流電 式可分成主 膜製程,其 證。被動式 表現會大打 之陽極層與 會使面板元Page 6 of the rice field micro-tip structure carbon, its display shows 'regardless of its driving side for thin is still waiting for the brightness of the pole structure current also emits the display field emission display nano tube field to send his various components 1 is the same. The conventional two-pole junction can be divided into the main film process by using direct current, which is proved. Passive performance will hit the anode layer and make the panel element
I278893 ,發明說 =極結構之碳奈 〜極結構之金屬 習知的二極結 2為竣奈米管組 ’屬微尖端場發 上述說明中 二1 6為何種組成 器之發光,且其 。主動式驅動係 對於中大型面板 脈衝電路,其對 壓差電路提供二 續之低電壓、高 传其哥命縮短。 並且,由於 動電壓往往大於 者’需要設計更 【發明内容】 有鑑於此, 其電源產生方法 至場發射顯示器 後'度,有效的提 過鬲而延長場發 本發明一種 2其與第一圖之習知的 器1差別在於發射層i 6 射顯示器2其發射層16 皆與習知的二極結構之 構場發射顯示器的發射 源1 9來驅動場發射顯示 動式驅動與被動式驅動 設備昂貴、製程複雜且 驅動係提供一種正壓差 折扣,或是,利用直流 陰極層使用,不過此持 件及電路產生熱,並使 習知之場發射顯示器其陽極與陰極間之驅 2 0 0V,因此可適用之驅動I c成本較高,或 為複雜之電路。 本發明提供一種場發射顯示器電源模組及 ,其可以藉由提供一高頻之交流電源,送 之陽極層與陰極層,並提高發射層之電流 南螢光層之發光效率,且不致使面板溫度 射顯示器之壽命。 场發射顯示器電源模組及其電源產生方法I278893, the invention says that the carbon structure of the polar structure is a metal of the polar structure. The conventional bipolar junction 2 is a nanotube group. The microtip is a field. In the above description, the composition of the hexon is the luminescence of the component. Active drive system For medium and large panel pulse circuits, it provides two low voltages to the differential voltage circuit and a high frequency reduction. Moreover, since the dynamic voltage is often greater than the 'required design', the invention provides a power generation method to the field emission display after the degree, effectively lifting the field and extending the field. The conventional device 1 differs in that the emission layer 6 of the emission layer 6 and its emission layer 16 are driven by the source of the conventional two-pole structure field emission display to drive the field emission display. The dynamic drive and the passive drive device are expensive. The process is complicated and the drive system provides a positive pressure difference discount, or it is used by the DC cathode layer, but the holding part and the circuit generate heat, and the conventional field emission display has a drive between the anode and the cathode of 200V, so The applicable drive IC is costly or complex. The invention provides a field emission display power module and can provide the anode layer and the cathode layer by providing a high frequency alternating current power source, and improve the luminous efficiency of the current layer of the emission layer of the south fluorescent layer without causing the panel The temperature is the life of the display. Field emission display power module and power generation method thereof
第7頁 1278893 ------- 五、發明說明(3) 斑,=Z交流電源以形成—發射層產生電子所需之正電場 止雷早ϊ ΐ反之負電場’該負電場則形成保護作用,以防 榮光層後反射回到發射層,產生二次電子轟擊 丨叩對發射層之損害。 丨使得力:ί Ϊ f電源到二極結構之陽極層與陰極層,而 多電荷於陽極層。並:,:::何仟以釋放,不致累積過 I使用壽命ϊ 產生熱能’進而延長場發射顯示器之 實施方式】 請參考第三圖,孫炎士 1 αα I發射顯示器電源及元=發=極=之金屬微尖端場 當作^ ^ ^ ΐ ί 3係利用高壓、高頻之交流電源3〇 場= 流,源3〇連接於二極結構之金屬微尖端 正電場時不^ Λ /2◦與陰極層24。當交流電源30於 2琢時,連接於陰極層24之發 由陽極層20與陰極層24Ρ弓々古廠 反王电卞丹藉 加速^ 2 : ^ 南壓、高頻交流電源30,用以 99、级子激敖β又置在陽極層20上的螢光層22,使得螢光層 二”體發〜•著,交流電源3〇在負電場時,以 保遵作用,用以抑制電子因撞擊螢光層22而 發$ 層26所造成之^電子轟擊㈣,並且,在陽極層 抵:致累,過2何而造成螢光層22之連續發Page 7 1278893 ------- V. Invention Description (3) Spot, =Z AC power supply to form - the positive electric field required to generate electrons in the emissive layer is stopped early ϊ ΐ Conversely the negative electric field 'the negative electric field is formed Protection, in order to prevent the glory layer from being reflected back to the emissive layer, causing damage to the emissive layer by secondary electron bombardment.丨 力 力 force: ί Ϊ f power to the anode and cathode layers of the two-pole structure, and more charge in the anode layer. And:,:::He will release, not accumulate I service life 产生 Generate heat energy' and then extend the implementation of field emission display] Please refer to the third picture, Sun Yanshi 1 αα I emission display power supply and yuan = hair = pole = The metal micro-tip field is used as ^ ^ ^ ΐ ί 3 system using high-voltage, high-frequency AC power supply 3 〇 field = flow, source 3 〇 connected to the metal micro-tip positive electric field of the two-pole structure is not ^ Λ /2 ◦ Cathode layer 24. When the AC power source 30 is at 2 ,, the connection to the cathode layer 24 is performed by the anode layer 20 and the cathode layer 24, and the 厂 々 々 古 古 古 古 反 ^ ^ ^ ^ ^ 2 2 99, the level of the excitation β is placed on the phosphor layer 22 on the anode layer 20, so that the fluorescent layer two" body ~ ~, AC power 3 〇 in the negative electric field, to ensure compliance, to suppress electrons The electron bombardment (4) caused by the layer 26 is caused by the impact of the phosphor layer 22, and the anode layer is abutted: causing the continuous emission of the phosphor layer 22
'電子,避免相互間電子以阻:26間產生之 上述说明中,發射層2 6其'Electronics, avoiding electrons from each other: 26 generated in the above description, the emission layer 26
^1· 第8頁 1278893 五、發明說明(4) 結構係為一金屬微尖端。 請參考第四圖’係為本發明二極結構之碳奈米官场發 射顯示器電源及元件剖面示意圖。本發明二極結構之碳奈 米管場發射顯示器4其與第三圖之本發明二極結構之金屬 微尖端場發射顯示器3差別在於發射層2 6,本發明二極結 構之碳微管場發射顯示器4其發射層2 6係為碳奈米管組成 ,其他各項元件皆與本發明二極結構之金屬微尖端場發射 顯示器3相同。 如此,本發明利用至少一萬赫茲以上之高頻與至少+ 3 Ο Ο V至一3 Ο Ο V的交流電源3 0,用以驅動各類場發射顯示器 之發光,並且交流電源3 0可以配合面板發光效率及需求進 行調變,上述中交流電源之頻率以一萬二千赫茲到一萬四 千赫茲之間為最佳發光效率。 請配合第六圖,參考第五圖,係為本發明場發射顯示 器電源模組之電路方塊圖。場發射顯示器電源模組6係包 括有:一直流電源6 0、一整流電路6 2、一保護電路6 4、一 脈寬調變電路6 6、一電子開關6 8及一放大器6 9。上述說明 中,直流電源6 0連接於整流電路6 2與脈寬調變電路6 6,用 以提供場發射顯示器5所需之電力。整流電路6 2係將直流 電源6 0作電源之升壓轉換,並且連接於該保護電路6 4,該 保護電路6 4係用以作為電路之過電壓與過電流保護。該脈 寬調變電路6 6連接該電子開關6 8,係根據直流電源6 0產生 一調變訊號,用以控制該電子開關6 8作為電力切換動作。 放大器6 9連接於該保護電路6 4與電子開關6 8,用以根據電^1· Page 8 1278893 V. INSTRUCTIONS (4) The structure is a metal microtip. Please refer to the fourth figure, which is a schematic diagram of the power supply and component cross-section of the carbon nano-display display of the two-pole structure of the present invention. The carbon nanotube field emission display 4 of the two-pole structure of the present invention is different from the metal micro-tip field emission display 3 of the two-pole structure of the present invention in the third figure in that the emission layer 2 6 is a carbon micro tube field of the two-pole structure of the present invention. The emission display 4 has an emission layer 26 composed of a carbon nanotube, and the other components are the same as the metal microtip field emission display 3 of the two-pole structure of the present invention. Thus, the present invention utilizes an alternating current power supply 30 having a high frequency of at least 10,000 Hz or more and at least + 3 Ο Ο V to a 3 Ο Ο V for driving the illumination of various field emission displays, and the AC power supply 30 can be matched. The panel luminous efficiency and demand are modulated. The frequency of the above-mentioned AC power source is between 12,000 Hz and 14,000 Hz for optimum luminous efficiency. Please refer to the sixth figure and refer to the fifth figure, which is a circuit block diagram of the power module of the field emission display of the present invention. The field emission display power module 6 includes a DC power supply 60, a rectifier circuit 6, a protection circuit 64, a pulse width modulation circuit 66, an electronic switch 68, and an amplifier 69. In the above description, the DC power source 60 is connected to the rectifier circuit 62 and the pulse width modulation circuit 66 to provide the power required for the field emission display 5. The rectifier circuit 6 2 converts the DC power source 60 as a power source and is connected to the protection circuit 64. The protection circuit 64 is used as an overvoltage and overcurrent protection for the circuit. The pulse width modulation circuit 66 is connected to the electronic switch 68 to generate a modulation signal according to the DC power supply 60 for controlling the electronic switch 6 as a power switching operation. An amplifier 6 9 is connected to the protection circuit 64 and the electronic switch 6 8 for
1278893 五、發明說明(5) 子開關6 8之電力高頻切換動作,而將升壓後之直流電源放 大’以產生一高頻且間歇性之電源供給場發射顯示器5使 用’上述說明之放大器係為一變壓器,該變壓器係為一高 頻變壓器。 請復配合第六圖,參考第五圖,放大器69之一端連接 於場發射顯示器5之陽極層,另一端則連接於場發射顯示 器5之陰極層,用以提供場發射顯示器5發光所需之交流電 力。 接下來’介紹本發明場發射顯示器電源模組之電源產 生方法’請參考第七圖,係為本發明場發射顯示器電源產 生方法流程圖。該方法流程如下:首先提供一直流電源( S1 0 0 ),接者’轉換該直流電源為一南頻率間歇性電源( S1 02);最後,升壓該高頻率間歇性電源成一高電位、高 頻率間歇電源(S104) 。 ^ 請配合第五圖,參考第七圖,在本發明場發射顯示器 電源產生方法流程中,係先提供一直流電源,接著藉由 整流電路6 2將該直流電源6 0升壓產生一高壓直流電源,同 時脈寬調變電路6 6產生調變訊號用以控制電子開關6 8之動 作’根據電子開關68之高頻切換動作,係轉換高壓直流 源成為一高頻率之間歇性電源,高頻率間歇性電源再$ 放大器69放大,產生一高電位、高頻率之間歇性電源了 送至場發射顯示器5之陰極層與陽極層之間,以提供p 射顯示器5發光所需之交流電力,使陰極層產生電^^ 該電子間歇性撞擊陽極層以產生間歇發光。 並1278893 V. Description of the invention (5) The high-frequency switching operation of the sub-switch 6 8 and amplifying the boosted DC power supply to generate a high-frequency and intermittent power supply to the field emission display 5 using the amplifier described above It is a transformer, which is a high-frequency transformer. Please cooperate with the sixth figure. Referring to the fifth figure, one end of the amplifier 69 is connected to the anode layer of the field emission display 5, and the other end is connected to the cathode layer of the field emission display 5 for providing the field emission display 5 for illumination. AC power. Next, the method for generating the power source of the field emission display power module of the present invention will be described. Please refer to the seventh figure, which is a flow chart of the method for generating the field emission display power of the present invention. The method is as follows: firstly, a DC power supply (S1 0 0) is provided, and the DC power supply is converted into a south frequency intermittent power supply (S1 02); finally, the high frequency intermittent power supply is boosted to a high potential and a high level. Frequency intermittent power supply (S104). ^ With reference to the fifth figure, referring to the seventh figure, in the flow of the field emission display power generation method of the present invention, a DC power supply is first provided, and then the DC power supply 60 is boosted by the rectifier circuit 62 to generate a high voltage DC. The power supply, and the pulse width modulation circuit 66 generates a modulation signal for controlling the action of the electronic switch 66. According to the high frequency switching operation of the electronic switch 68, the high voltage direct current source is converted into a high frequency intermittent power supply, which is high. The frequency intermittent power supply is amplified by the amplifier 69 to generate a high-potential, high-frequency intermittent power supply to the cathode layer and the anode layer of the field emission display 5 to provide the AC power required for the p-display 5 to emit light. The cathode layer is caused to generate electricity. The electrons intermittently strike the anode layer to generate intermittent light. and
1278893 五、發明說明(6) 上 述 說 明 中 5 高電 位 、 萬 赫 茲 以 上 之 高 頻與 至 少 用 以 驅 動 各 類 場 發 射顯 示 器 配 合 面 板 發 光 效 率 及需 求 進 南 頻 率 之 間 歇 性 電 源之 頻 率 茲 之 間 為 最 佳 發 光 效率 〇 綜 上 所 述 J 本 發明 係 可 可 以 有 效 提 高 螢 光 粉之 發 光 度 過 高 , 且 延 長 使 用壽 命 〇 成 保 護 作 用 9 用 以 抑制 電 子 動 能 5 而 有 效 的 改 善二 次 電 長 使 用 哥 命 〇 是 9 本 創 作 確能 藉 上 然 不 同 於 習 知 者 的 設計 堪 中 請 前 未 見 於 刊 物 或公 開 使 J 爰 依 法 提 出 發 明 專利 中 請 惟 上 述 所 揭 露之 圖 式 而 已 5 凡 精 于 此 項 技藝 者 當 之 改 良 而 這 些 改 變仍. 屬: 於 定 之 專 利 範 圍 中 Ο 高頻率之間歇性電源係為至少 + 3〇〇v至一 3 0 0V的交流電源、’ 之發光,旅立間歇性電源可以 行調變,龙’上述中高電位、 以_萬-十赫兹到一萬四千赫 藉由高壓、高頻之交流·電源、’ 效率並不致使場發射顯示器溫 並且,交流電源之負電場可形 撞擊螢光層而反射回發射層之 子轟擊所造成之損害,進而延 述所揭露之技術,提供一種迴 能提高整體之使用價值,又其 用,誠已符合發明專利之要件 〇 、説明’僅為本發明之實施例 可依據上述之說明作其他種種 本發明之發明精神及以下所界1278893 V. INSTRUCTIONS (6) In the above description, the high frequency, the high frequency above 10,000 Hz and the frequency of at least the intermittent power supply for driving the various types of field emission displays to match the panel luminous efficiency and the demand for the south frequency are Optimum luminous efficiency, in summary, the invention can effectively improve the luminosity of the fluorescent powder and prolong the service life, and protect the secondary kinetic energy. Brother's life is 9 This creation can indeed be borrowed from the design of the well-known person. Please do not see it in the publication or publicly make J 爰 legally file the invention patent, please only disclose the above-mentioned illustrations. These changes are still made by the artist. Dependent: In the scope of the patent, the high-frequency intermittent power supply is at least + 3〇〇v to 130V AC power, 'light, travel The intermittent power supply can be modulated, and the dragon's medium and high potentials are _10,000-ten Hz to 14,000 Hz. By high-voltage, high-frequency AC power supply, 'efficiency does not cause the field emission display to be warm and AC. The negative electric field of the power source can impact the fluorescent layer and reflect back to the damage caused by the bombardment of the emissive layer, thereby further describing the disclosed technology, providing a kind of energy recovery to improve the overall use value, and its use, has been in line with the invention patent The present invention is based on the above description, and can be used in accordance with the above description.
1278893 圖式簡單說明 (1) 圖示說明 第一圖為習知二極結構之金屬微尖端場發射顯示器電 源及元件剖面示意圖; 第二圖為習知二極結構之碳微管場發射顯示器電源及 元件剖面不意圖, 第三圖為本發明二極結構之金屬微尖端場發射顯示器 電源及元件剖面示意圖; 第四圖為本發明二極結構之碳奈米管場發射顯示器電 源及元件剖面示意圖;1278893 Brief description of the diagram (1) Illustration The first figure shows the schematic diagram of the power supply and components of the metal microtip field emission display with the conventional two-pole structure. The second figure shows the carbon micro tube field emission display power supply of the conventional two-pole structure. And the component cross-section is not intended. The third figure is a cross-sectional view of the power supply and components of the metal micro-tip field emission display of the two-pole structure of the present invention. The fourth figure is a cross-sectional view of the power source and components of the carbon nanotube field emission display of the two-pole structure of the present invention. ;
第五圖為本發明場發射顯示器電源模組之電路方塊圖 9 第六圖為本發明場發射顯示器電源模組之電路圖;及 第七圖為本發明場發射顯示器電源產生方法流程圖。 (2) 圖號說明 習知:FIG. 5 is a circuit diagram of a power module of a field emission display of the present invention. FIG. 6 is a circuit diagram of a power module of a field emission display according to the present invention; and FIG. 7 is a flow chart of a method for generating a power source of a field emission display according to the present invention. (2) Description of the figure number:
1習知的二極結構之金屬微尖端場發射顯示器 1 0陽極層 12螢光層 1 4陰極層 1 6發射層 1 8絕緣層 1 9直流電源 2習知的二極結構之碳奈米管場發射顯示器 本發明:1 conventional two-pole structure of the metal micro-tip field emission display 10 anode layer 12 fluorescent layer 1 4 cathode layer 1 6 emission layer 1 8 insulation layer 1 9 DC power supply 2 conventional two-pole carbon nanotube tube Field emission display the present invention:
第12頁 1278893 圖式簡單說明 3本發明二極結構之金屬微尖端場發射顯示器 2 0陽極層 22螢光層 2 4陰極層 2 6發射層 2 8絕緣層 3 0交流電源Page 12 1278893 Brief description of the diagram 3 Metal microtip field emission display of the invention of the two-pole structure 20 Anode layer 22 Fluorescent layer 2 4 Cathode layer 2 6 Emissive layer 2 8 Insulation layer 3 0 AC power supply
4本發明二極結構之碳奈米管場發射顯示器 5場發射顯示器 6場發射顯示器電源模組 6 0直流電源 6 2整流電路 6 4保護電路 6 6脈寬調變電路 6 8電子開關 6 9放大器4 carbon nano tube field emission display of the invention of the two-pole structure, five field emission display, six field emission display power supply module, 6 DC power supply, 6 2 rectifier circuit, 6 protection circuit, 6 pulse width modulation circuit, 6 8 electronic switch 6 9 amplifier
第13頁Page 13
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