TW201303958A - Light-emitting device and display apparatus - Google Patents
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本發明是有關於一種發光元件，且特別是有關於一種利用螢光層發光的發光元件及應用其之顯示裝置。The present invention relates to a light-emitting element, and more particularly to a light-emitting element that emits light using a phosphor layer and a display device using the same.
目前量產的光源裝置或顯示裝置中主要應用兩大類的發光結構，包括：At present, two types of light-emitting structures are mainly used in a mass-produced light source device or display device, including:
1. 氣體放電光源：應用於例如電漿面板或氣體放電燈上，主要利用陰極與陽極之間的電場，使充滿於放電腔內的氣體游離，藉由輝光放電(glow discharge)的方式使電子撞擊氣體後產生躍遷並發出紫外光，而同樣位於放電腔內的螢光層吸收紫外光後便發出可見光。1. Gas discharge light source: applied to, for example, a plasma panel or a gas discharge lamp, mainly using an electric field between the cathode and the anode to free the gas filled in the discharge chamber, and causing the electron to be discharged by a glow discharge After the gas is struck, a transition occurs and ultraviolet light is emitted, and the fluorescent layer, which is also located in the discharge chamber, absorbs ultraviolet light and emits visible light.
2. 場發射光源：應用於例如奈米碳管場發射顯示器等，主要是提供一超高真空的環境，並且在陰極上製作奈米碳材的電子發射端(electron emitter)，以利用電子發射端中高深寬比的微結構幫助電子克服陰極的功函數(work function)而脫離陰極。此外，在銦錫氧化物(ITO)製成的陽極上塗佈螢光層，以藉由陰極與陽極之間的高電場使電子由陰極的奈米碳管逸出。如此，電子可在真空環境中撞擊陽極上的螢光層，以發出可見光。2. Field emission light source: applied to, for example, a carbon nanotube field emission display, etc., mainly providing an ultra-high vacuum environment, and fabricating an electron emitter of a nano carbon material on the cathode to utilize electron emission The microstructure of the high aspect ratio in the end helps the electrons to break away from the cathode against the work function of the cathode. Further, a phosphor layer is coated on an anode made of indium tin oxide (ITO) to cause electrons to escape from the carbon nanotube of the cathode by a high electric field between the cathode and the anode. As such, the electrons can strike the phosphor layer on the anode in a vacuum environment to emit visible light.
然而，上述兩種發光結構皆有其缺點。舉例而言，因考量受到紫外光照射後的衰減問題，因此對於氣體放電光源內的材料選用需有特殊要求。此外，因為氣體放電的發光機制歷經兩道過程才能發出可見光，故能量的損耗較大，如果過程中需產生電漿，則更為耗電。另一方面，場發射光源需要在陰極上成長或塗佈均勻的電子發射端，但目前大面積生產此類陰極結構的技術尚未成熟，且遇到電子發射端的均勻度與生產良率不佳的瓶頸。此外，場發射光源的陰極與陽極的間距需控制精確，超高真空度的封裝困難，也相對增加製作的成本。However, both of the above-described light-emitting structures have their disadvantages. For example, due to the attenuation problem after exposure to ultraviolet light, special requirements are required for the material selection in the gas discharge source. In addition, because the light-emitting mechanism of gas discharge can emit visible light after two processes, the energy loss is large, and if plasma is generated in the process, it is more power-consuming. On the other hand, the field emission source needs to grow or coat a uniform electron emission end on the cathode, but the technology for producing such a cathode structure on a large scale is not yet mature, and the uniformity of the electron emission end and the production yield are not good. bottleneck. In addition, the distance between the cathode and the anode of the field emission light source needs to be controlled accurately, and the packaging of the ultra-high vacuum degree is difficult, and the manufacturing cost is relatively increased.
本發明之一實施例提出一種發光元件，其包括一密閉容器、一低壓氣體、一陽極、一陰極及一螢光層。密閉容器定義出一密閉空間，且密閉空間位於密閉容器的內部。低壓氣體填充於密閉空間內。陽極配置於密閉容器外部。陰極配置於密閉容器外部，其中陽極與陰極分別位於密閉空間外的相對兩側。螢光層配置於密閉空間中。One embodiment of the present invention provides a light emitting device including a hermetic container, a low pressure gas, an anode, a cathode, and a phosphor layer. The closed container defines a confined space, and the confined space is located inside the closed container. The low pressure gas is filled in the sealed space. The anode is disposed outside the sealed container. The cathode is disposed outside the sealed container, wherein the anode and the cathode are respectively located on opposite sides of the sealed space. The phosphor layer is disposed in a confined space.
本發明之另一實施例提出一種顯示裝置，其包括複數個上述發光元件，其中這些發光元件排列成一陣列。Another embodiment of the present invention provides a display device including a plurality of the above-described light-emitting elements, wherein the light-emitting elements are arranged in an array.
為讓本發明之上述特徵能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。In order to make the above-described features of the present invention more comprehensible, the following detailed description of the embodiments will be described in detail below.
本發明所提出的發光元件兼具傳統氣體放電光源與場發射光源的優點，且克服了這兩種傳統發光結構的缺點。請參照圖1所繪示的上述兩種傳統發光結構與本發明之發光元件的發光機制比較圖。更詳細地說，習知的氣體輝光放電光源利用陰極與陽極之間的電場，使充滿於放電腔內的氣體游離，藉由氣體導電的方式使電子撞擊其他氣體分子後產生紫外光，而螢光層吸收紫外光後發出可見光。此外，習知的場發射光源是在超高真空的環境中，藉由陰極上之電子發射端的高深寬比結構來幫助電子克服陰極的功函數而脫離陰極。其後，電子藉由陰極與陽極之間的高電場自陰極的電子發射端逸出，並撞擊陽極上的螢光層，以發出可見光。也就是說，螢光層的材料依照設計機制的需要可以採用可發出可見光、紅外光、或是紫外光等的材料。The light-emitting element proposed by the invention has the advantages of the conventional gas discharge light source and the field emission light source, and overcomes the disadvantages of the two conventional light-emitting structures. Please refer to FIG. 1 for a comparison diagram of the above two conventional light-emitting structures and the light-emitting mechanism of the light-emitting element of the present invention. In more detail, the conventional gas glow discharge source utilizes an electric field between the cathode and the anode to free the gas filled in the discharge chamber, and the gas is electrically conductive to cause the electrons to collide with other gas molecules to generate ultraviolet light. The light layer absorbs ultraviolet light and emits visible light. In addition, conventional field emission sources are in an ultra-high vacuum environment, with the high aspect ratio structure of the electron-emitting end on the cathode to help the electrons out of the cathode against the work function of the cathode. Thereafter, electrons escape from the electron-emitting end of the cathode by a high electric field between the cathode and the anode, and strike the phosphor layer on the anode to emit visible light. That is to say, the material of the phosphor layer can be made of a material that emits visible light, infrared light, or ultraviolet light according to the design mechanism.
與上述兩種習知發光機制不同的是，本發明的發光元件不需形成電子發射端，而是利用交流電源或脈衝電源將稀薄的氣體解離，以產生電子，並使電子直接與螢光層反應而發出光線。Different from the above two conventional illuminating mechanisms, the illuminating element of the present invention does not need to form an electron-emitting end, but uses an alternating current power source or a pulse power source to dissociate a thin gas to generate electrons and directly connect the electrons to the phosphor layer. The reaction emits light.
相較於習知的氣體輝光放電光源，本發明之發光元件內所填充之氣體的量僅需能在受到交流電源或脈衝電源的作用時解離出電子即可，不會產生輝光放電，且並非利用紫外光照射螢光層來產生光線，因此不需擔心元件內的材料被紫外光照射的衰減問題。由實驗與理論驗證我們得知，本發明之發光元件內的氣體較為稀薄，因此電子的平均自由路徑可以達到約5mm或5mm以上。換言之，大部分的電子在撞擊氣體的分子前便會直接撞擊到螢光層，而發出光線。此外，本發明之發光元件不需經由兩道過程來產生光線，因此發光效率較高，也可減少能量損耗。Compared with the conventional gas glow discharge light source, the amount of gas filled in the light-emitting element of the present invention only needs to be able to dissociate the electrons when subjected to the action of the alternating current power source or the pulse power source, and does not generate glow discharge, and is not The phosphor layer is irradiated with ultraviolet light to generate light, so there is no need to worry about the attenuation of the material in the element by ultraviolet light. It has been experimentally and theoretically verified that the gas in the light-emitting element of the present invention is relatively thin, so that the average free path of electrons can reach about 5 mm or more. In other words, most of the electrons hit the phosphor layer directly before they hit the molecules of the gas, emitting light. In addition, the light-emitting element of the present invention does not need to generate light through two processes, so that the luminous efficiency is high, and the energy loss can also be reduced.
另一方面，在習知的場發射光源中，需要在陰極上形成作為電子發射端的微結構，此微結構在大面積的製程控制困難。最常使用到的微結構是奈米碳管(carbon nanotube)，在陰極的塗佈上有碳管長短不一與聚集成叢的問題，使得其發光面有暗點存在，發光均勻性不佳一直是場發射光源的技術瓶頸與成本來源。相較之下，本發明之發光元件可以藉由交流電源或脈衝電源來使氣體解離出電子，因此只需要簡單的陰極平面結構就可使4”之本發明之發光元件的發光均勻性達到80%以上的程度，解決傳統場發射發光裝置的發光均勻性難以提升的瓶頸。因此可以大幅節省製作成本，製程上也較為簡單。此外，本發明之發光元件內填充稀薄的氣體，因此不需超高真空度環境，可避免進行超高真空度封裝時所遇到的困難。On the other hand, in the conventional field emission light source, it is necessary to form a microstructure as an electron-emitting end on the cathode, which is difficult to control in a large-area process. The most commonly used microstructure is a carbon nanotube. On the coating of the cathode, there are problems of different lengths of carbon tubes and clustering, so that the light-emitting surface has dark spots and the uniformity of light emission is poor. It has always been a technical bottleneck and cost source for field emission sources. In contrast, the light-emitting element of the present invention can dissociate the gas by an alternating current power source or a pulse power source, so that only a simple cathode planar structure is required to achieve a luminous uniformity of 80% of the light-emitting element of the present invention. The above-mentioned degree solves the bottleneck that the uniformity of illumination of the conventional field emission illuminating device is difficult to be improved. Therefore, the manufacturing cost can be greatly saved, and the process is also relatively simple. In addition, the illuminating element of the present invention is filled with a thin gas, so that it is not required to be super The high vacuum environment avoids the difficulties encountered in ultra-high vacuum packaging.
圖2為本發明之一實施例之發光元件的剖面示意圖，而圖3A至圖3C為用以驅動圖2之發光元件的驅動電壓波形圖。請參照圖2與圖3，本實施例之發光元件100包括一密閉容器110、一低壓氣體122、一陽極150、一陰極160及一螢光層140。密閉容器110定義出一密閉空間120，且密閉空間120位於密閉容器110的內部。此外，低壓氣體122填充於密閉空間120內。在本實施例中，密閉容器110包括一第一基板112、一第二基板114及一密封結構116。第二基板114相對於第一基板112，且密封結構116配置於第一基板112與第二基板114的邊緣，其中第一基板112、第二基板114及密封結構116圍繞出密閉空間120。在本實施例中，密封結構116例如是呈框形，以環繞密閉空間120。此外，密封結構116連接於第一基板112與第二基板114之間，以將低壓形體密封於密閉空間120中。2 is a cross-sectional view of a light-emitting element according to an embodiment of the present invention, and FIGS. 3A to 3C are waveform diagrams of driving voltages for driving the light-emitting element of FIG. 2. Referring to FIG. 2 and FIG. 3 , the light emitting device 100 of the present embodiment includes a sealed container 110 , a low pressure gas 122 , an anode 150 , a cathode 160 , and a phosphor layer 140 . The hermetic container 110 defines a confined space 120, and the confined space 120 is located inside the hermetic container 110. Further, the low pressure gas 122 is filled in the sealed space 120. In this embodiment, the sealed container 110 includes a first substrate 112, a second substrate 114, and a sealing structure 116. The second substrate 114 is opposite to the first substrate 112 , and the sealing structure 116 is disposed on the edge of the first substrate 112 and the second substrate 114 , wherein the first substrate 112 , the second substrate 114 , and the sealing structure 116 surround the sealed space 120 . In the present embodiment, the sealing structure 116 is, for example, in a frame shape to surround the sealed space 120. In addition, the sealing structure 116 is connected between the first substrate 112 and the second substrate 114 to seal the low pressure body in the sealed space 120.
在本實施例中第一基板112與第二基板114例如為玻璃基板。然而，在其他實施例中，第一基板112與第二基板114亦可以是其他材質的透光基板。此外，在本實施例中，密封結構116的材質例如是玻璃封膠。然而，在其他實施例中，密封結構116的材質亦可以是其他可將第一基板112與第二基板114之間的空間密封之材料，或者密封結構116亦圖以是其他可將第一基板112與第二基板114之間的空間密封之機構。此外，低壓氣體122的壓力例如是介於5×10-1托(torr)與1×10-3托之間。另外，低壓氣體包括空氣、氦、氖、氬、氪、氙、氫、二氧化碳或氧，或前述這些氣體的任意組合。In the present embodiment, the first substrate 112 and the second substrate 114 are, for example, glass substrates. However, in other embodiments, the first substrate 112 and the second substrate 114 may also be transparent substrates of other materials. In addition, in the embodiment, the material of the sealing structure 116 is, for example, a glass sealant. However, in other embodiments, the material of the sealing structure 116 may also be other materials that can seal the space between the first substrate 112 and the second substrate 114, or the sealing structure 116 may be other than the first substrate. A mechanism for sealing the space between the 112 and the second substrate 114. Further, the pressure of the low pressure gas 122 is, for example, between 5 × 10 -1 torr and 1 × 10 -3 torr. In addition, the low pressure gas includes air, helium, neon, argon, helium, neon, hydrogen, carbon dioxide or oxygen, or any combination of the foregoing.
陽極150配置於密閉容器110外部，陰極160配置於密閉容器110外部，其中陽極150與陰極160分別位於密閉空間120外的相對兩側。在本實施例中，陽極150配置於第一基板112上，且陰極160配置於第二基板114上。此外，在本實施例中，第一基板112配置於陽極150與第二基板114之間，且第二基板114配置於第一基板112與陰極160之間。The anode 150 is disposed outside the hermetic container 110, and the cathode 160 is disposed outside the hermetic container 110, wherein the anode 150 and the cathode 160 are respectively located on opposite sides of the sealed space 120. In this embodiment, the anode 150 is disposed on the first substrate 112, and the cathode 160 is disposed on the second substrate 114. In addition, in the embodiment, the first substrate 112 is disposed between the anode 150 and the second substrate 114 , and the second substrate 114 is disposed between the first substrate 112 and the cathode 160 .
陽極150與陰極160之至少其一為透明導電層。或者，陽極150與陰極160之至少其一的材質為金屬或奈米碳管。舉例而言，在本實施例中，陽極150與陰極160皆為透明導電層，且此透明導電層的材質例如為氧化銦錫(ITO)、氟摻雜氧化錫(FTO)、鋁摻雜氧化錫(AZO)、鎵摻雜之氧化鋅薄膜(GZO)或其他透明導電材料。或者，在其他實施例中，亦可以是陽極150與陰極160之一為透明導電層，且陽極150與陰極160之另一為金屬層或奈米碳管層。或者，在其他實施例中，亦可以是陽極150與陰極160皆為金屬層或奈米碳管，且陽極150與陰極160中至少其一呈網狀，以達到透光的效果。At least one of the anode 150 and the cathode 160 is a transparent conductive layer. Alternatively, at least one of the anode 150 and the cathode 160 is made of a metal or a carbon nanotube. For example, in this embodiment, both the anode 150 and the cathode 160 are transparent conductive layers, and the transparent conductive layer is made of, for example, indium tin oxide (ITO), fluorine-doped tin oxide (FTO), and aluminum doped oxidation. Tin (AZO), gallium-doped zinc oxide film (GZO) or other transparent conductive material. Alternatively, in other embodiments, one of the anode 150 and the cathode 160 may be a transparent conductive layer, and the other of the anode 150 and the cathode 160 may be a metal layer or a carbon nanotube layer. Alternatively, in other embodiments, the anode 150 and the cathode 160 may both be a metal layer or a carbon nanotube, and at least one of the anode 150 and the cathode 160 may be meshed to achieve a light transmitting effect.
螢光層140配置於密閉空間120中。在本實施例中，螢光層140例如為受到電子的撞擊後可發出可見光的螢光粉層。此外，在本實施例中，螢光層140配置於第一基板112上。然而，在其他實施例中，螢光層140亦可以配置於第二基板114上。在本實施例中，螢光層140可利用遮罩、網版印刷或噴塗的方式，將螢光粉印在第二基板114上來形成。The phosphor layer 140 is disposed in the sealed space 120. In the present embodiment, the phosphor layer 140 is, for example, a phosphor layer that emits visible light after being struck by electrons. In addition, in the embodiment, the phosphor layer 140 is disposed on the first substrate 112. However, in other embodiments, the phosphor layer 140 may also be disposed on the second substrate 114. In this embodiment, the phosphor layer 140 can be formed by printing a phosphor powder on the second substrate 114 by means of masking, screen printing or spraying.
在本實施例中，發光元件100更包括一電源170，其電性連接陽極150與陰極160，以提供交流電壓，如圖3A、圖3B或圖3C所繪示之交流電壓，亦即此交流電壓訊號可為正弦波(圖3A)、方波(圖3B)、三角波(圖3C)或呈其他適當形狀的交流電壓訊號。交流電壓適於使低壓氣體122解離而產生複數個電子180。具體而言，交流電壓可使氣體分子解離成氣體離子130與電子180。這些電子180在交流電壓的作用下撞擊螢光層140，以使螢光層140發光。在本實施例中，由於發光元件100的第一基板112、第二基板114、陽極150及陰極160皆為透明，因此螢光層140所發出的光142可依序經由第一基板112與陽極150傳遞至外界，且可依序經由第二基板114與陰極160傳遞至外界。In this embodiment, the light-emitting element 100 further includes a power source 170 electrically connected to the anode 150 and the cathode 160 to provide an alternating voltage, as shown in FIG. 3A, FIG. 3B or FIG. 3C, that is, the alternating current. The voltage signal can be a sine wave (Fig. 3A), a square wave (Fig. 3B), a triangular wave (Fig. 3C) or an AC voltage signal of other suitable shape. The alternating voltage is adapted to dissociate the low pressure gas 122 to produce a plurality of electrons 180. In particular, the alternating voltage dissociates the gas molecules into gas ions 130 and electrons 180. These electrons 180 strike the phosphor layer 140 under the action of an alternating voltage to cause the phosphor layer 140 to emit light. In this embodiment, since the first substrate 112, the second substrate 114, the anode 150, and the cathode 160 of the light emitting device 100 are all transparent, the light 142 emitted by the phosphor layer 140 can be sequentially passed through the first substrate 112 and the anode. The 150 is transmitted to the outside and can be transmitted to the outside via the second substrate 114 and the cathode 160 in sequence.
在本實施例之發光元件100中，由於陽極150與陰極160位於密閉容器110的外側，因此能夠有效避免陽極150與陰極160因受到離子或電子的撞擊而被破壞，所以發光元件100的使用壽命可被有效地延長。此外，相較於習知氣體放電光源，本實施例之發光元件100不需經由兩道過程來產生光線，因此發光效率較高，也可減少能量損耗。另外，相較於習知場發射光源，本實施例之發光元件100內填充稀薄的氣體，因此不需超高真空度環境，如此可避免進行超高真空度封裝時所遇到的困難。再者，相較於場發射光源較難達到均勻發光，在本實施例之發光元件100中，利用均勻塗佈螢光層140的方式即可簡易地達成均勻地發光，因此製程較為簡易。除此之外，本實施例之發光元件100結構簡單，因此製程亦較為簡易。In the light-emitting element 100 of the present embodiment, since the anode 150 and the cathode 160 are located outside the sealed container 110, it is possible to effectively prevent the anode 150 and the cathode 160 from being damaged by the impact of ions or electrons, so the service life of the light-emitting element 100 Can be effectively extended. In addition, the light-emitting element 100 of the present embodiment does not need to generate light through two processes as compared with the conventional gas discharge light source, and thus the luminous efficiency is high, and the energy loss can also be reduced. In addition, compared with the conventional field emission light source, the light-emitting element 100 of the present embodiment is filled with a thin gas, so that an ultra-high vacuum environment is not required, so that the difficulty encountered in ultra-high vacuum packaging can be avoided. Further, it is difficult to achieve uniform light emission compared to the field emission light source. In the light-emitting element 100 of the present embodiment, uniform light emission can be easily achieved by uniformly coating the fluorescent layer 140, so that the process is relatively simple. In addition, the light-emitting element 100 of the present embodiment has a simple structure, and therefore the process is relatively simple.
本實施例之發光元件100所發出的光色、色溫與演色性可藉由對螢光層的材質之選擇，而因應使用者的需求，以作客製化的改變。此外，本實施例之發光元件100亦具有響應時間短及不含汞之環保特性。再者，由於本實施例之發光元件100內部的低壓氣體類似於真空玻璃內部的真空環境，因此可以本實施例之發光元件100取代真空玻璃，來作為建築物的窗戶、落地窗或玻離帷幕，以達到隔熱與隔音的效果。當以發光元件100來取代真空玻璃時，由於發光元件100具有透光的效果，因此白天時可讓自然光通過，以利用晝光作室內照明，且使用者亦可經由發光元件100觀賞到戶外的景色。另外，由於發光元件100的第一基板112、第二基板114、陽極150及陰極160皆為透明，因此發光元件100具有雙面發光的效果。因此當發光元件100於夜晚使用時，不僅可以對外呈現亮區，亦可對內作為室內照明之輔助光源，且對室內的照明可類似於白天之自然光的照明情境。當發光元件100取代真空玻璃而於夏天使用時，其隔熱的效果可避免室外的熱進入室內，以節省冷氣用電。當發光元件100於冬天使用時，其隔熱的效果可避免室內的熱逸出室外，以節省暖氣用電。The color, color temperature and color rendering properties of the light-emitting element 100 of the present embodiment can be customized to suit the needs of the user by selecting the material of the phosphor layer. In addition, the light-emitting element 100 of the present embodiment also has environmental characteristics of short response time and no mercury. Furthermore, since the low-pressure gas inside the light-emitting element 100 of the present embodiment is similar to the vacuum environment inside the vacuum glass, the light-emitting element 100 of the present embodiment can be used as a window, a floor-to-ceiling window or a glass curtain of a building instead of a vacuum glass. To achieve insulation and sound insulation. When the light-emitting element 100 is used in place of the vacuum glass, since the light-emitting element 100 has a light-transmitting effect, natural light can be passed during the daytime to allow indoor illumination by using the neon light, and the user can also view the outdoor through the light-emitting element 100. view. In addition, since the first substrate 112, the second substrate 114, the anode 150, and the cathode 160 of the light-emitting element 100 are all transparent, the light-emitting element 100 has an effect of emitting light on both sides. Therefore, when the light-emitting element 100 is used at night, not only can the bright area be presented externally, but also the internal light can be used as an auxiliary light source for indoor illumination, and the illumination of the room can be similar to the illumination environment of natural light during the day. When the light-emitting element 100 is used in the summer instead of the vacuum glass, the heat insulation effect can prevent the outdoor heat from entering the room to save electricity for cold air. When the light-emitting element 100 is used in winter, the heat insulation effect can prevent the indoor heat from escaping outside, thereby saving heating power.
再者，發光元件100亦可依使用需求而作成各種尺寸與各種形狀(例如長方形、方形或圓形等形狀)，以期提升使用率。發光元件100除了可用於建築物之窗戶外，亦可應用於戶外看板、招牌或指標等，且亦可搭配情境效果，而形成具有發光效果的花磚，以作為戶外情境照明。In addition, the light-emitting element 100 can also be formed into various sizes and various shapes (for example, a shape such as a rectangle, a square, or a circle) according to the use requirements, in order to improve the usage rate. In addition to being used for windows of buildings, the light-emitting element 100 can also be applied to outdoor billboards, signs or indicators, and can also be combined with situational effects to form tiles with luminous effects for outdoor situation lighting.
以下表一舉出本實施例之發光元件100的各項參數的一實施例，但其只是用以作為舉例說明，並不是用以限制本發明的範疇。The following table shows an embodiment of the parameters of the light-emitting element 100 of the present embodiment, but it is only for illustrative purposes and is not intended to limit the scope of the present invention.
表一列出發光元件100的三組參數，其中電極的那行表示陽極150與陰極160的材質皆採用氟摻雜氧化錫(FTO)。氣體那行表示低壓氣體122所採用的材質皆為氖(Ne)。壓力那行表示低壓氣體的壓力。Vpp(volt)那行表示電源170所產生的電壓訊號之波峰至波谷的電壓差，單位為伏特(volt)。Offset(Vdc)那行表示電源170所產生的交流訊號之偏移量(offset)，亦即交流訊號中的直流部分。Freq(Hz)那行表示電源170所產生的交流訊號之頻率，單位為赫茲(Hz)。Duty那行表示電源170所產生的電壓訊號之能率(duty)。此外，表一中的三列數據分別表示三組發光元件100的參數。Table 1 lists the three sets of parameters of the light-emitting element 100, wherein the row of electrodes indicates that the anode 150 and the cathode 160 are made of fluorine-doped tin oxide (FTO). The line of gas indicates that the material used for the low pressure gas 122 is neon (Ne). The line of pressure indicates the pressure of the low pressure gas. The Vpp (volt) line represents the voltage difference from the peak to the valley of the voltage signal generated by the power supply 170 in volts. The Offset (V dc ) line indicates the offset of the AC signal generated by the power supply 170, that is, the DC portion of the AC signal. The Freq (Hz) line indicates the frequency of the AC signal generated by the power supply 170 in Hertz (Hz). The Duty line indicates the duty of the voltage signal generated by the power source 170. In addition, the three columns of data in Table 1 represent the parameters of the three sets of light-emitting elements 100, respectively.
圖4A至圖4D為用以驅動圖2之發光元件的另外四種驅動電壓波形圖。請參照圖2與圖4A至圖4D，電源170亦可以提供脈衝電壓至陽極150與陰極160。舉例而言，可將圖4A或圖4C之脈衝電壓訊號提供至陰極160，而陽極150則接地，其中圖4A與圖4C的訊號的主要差異在於圖4A的訊號之直流部分為負值，而圖4C的訊號之直流部分為0。或者，亦可將圖4B或圖4D之脈衝電壓訊提供至陽極150，而陰極160則接地，其中圖4B與圖4D的訊號的主要差異在於圖4B的訊號之直流部分為正值，而圖4D的訊號之直流部分為0。脈衝電壓亦可使低壓氣體122解離而產生複數個電子180，且這些電子180在脈衝電壓的作用下撞擊螢光層140，以使螢光層140發光。4A to 4D are diagrams of other four driving voltage waveforms for driving the light-emitting element of Fig. 2. Referring to FIG. 2 and FIG. 4A to FIG. 4D, the power source 170 can also provide a pulse voltage to the anode 150 and the cathode 160. For example, the pulse voltage signal of FIG. 4A or FIG. 4C can be supplied to the cathode 160, and the anode 150 is grounded. The main difference between the signals of FIG. 4A and FIG. 4C is that the DC portion of the signal of FIG. 4A is negative. The DC portion of the signal of Figure 4C is zero. Alternatively, the pulse voltage signal of FIG. 4B or FIG. 4D may be supplied to the anode 150, and the cathode 160 is grounded. The main difference between the signals of FIG. 4B and FIG. 4D is that the DC portion of the signal of FIG. 4B is positive, and the figure is The DC portion of the 4D signal is zero. The pulse voltage can also dissociate the low pressure gas 122 to produce a plurality of electrons 180, and the electrons 180 strike the phosphor layer 140 under the action of a pulse voltage to cause the phosphor layer 140 to emit light.
圖5A為本發明之另一實施例之發光元件的剖面示意圖，而圖5B為圖5A的發光元件的正視圖，其中圖5A為圖5B之沿著I-I線的剖面圖。請參照圖5A與圖5B，本實施例之發光元件100a與圖2之發光元件100類似，兩者中相同的標號代表相同或相似的元件，而兩者的差異如下所述。在本實施例之發光元件100a中，密封結構116具有相對的一第一側邊116a與一第二側邊116b，第一側邊116a位於陽極150與密閉空間120之間，且第二側邊116b位於密閉空間120與陰極160之間。換言之，陽極150與陰極160是位於發光元件100a的側邊。相較之下，圖2的陰極150與陰極160則是位於發光元件100的上下兩側，即位於兩出光面上。因此，在本實施例中，陽極150與陰極160除了可採用透明導電層之外，亦可採用不透光的金屬電極或奈米碳管電極，而較不用考慮到遮光的問題。5A is a cross-sectional view of a light-emitting element according to another embodiment of the present invention, and FIG. 5B is a front view of the light-emitting element of FIG. 5A, wherein FIG. 5A is a cross-sectional view taken along line I-I of FIG. 5B. Referring to FIGS. 5A and 5B, the light-emitting element 100a of the present embodiment is similar to the light-emitting element 100 of FIG. 2, and the same reference numerals are used for the same or similar elements, and the differences between the two are as follows. In the light-emitting element 100a of the present embodiment, the sealing structure 116 has a first side 116a and a second side 116b opposite to each other. The first side 116a is located between the anode 150 and the sealed space 120, and the second side is 116b is located between the enclosed space 120 and the cathode 160. In other words, the anode 150 and the cathode 160 are located on the side of the light-emitting element 100a. In contrast, the cathode 150 and the cathode 160 of FIG. 2 are located on the upper and lower sides of the light-emitting element 100, that is, on the two light-emitting surfaces. Therefore, in the present embodiment, in addition to the transparent conductive layer, the anode 150 and the cathode 160 may also employ an opaque metal electrode or a carbon nanotube electrode, without regard to the problem of shading.
在本實施例中，密封結構116更具有相對的一第三側邊116c與一第四側邊116d，第三側邊116c連接第一側邊116a與第二側邊116b，且第四側邊116d連接第一側邊116a與第二側邊116b。換言之，密封結構116例如為一矩形框。在其他實施例中，陽極150與陰極160亦可以分別配置於密封結構116的第三側邊116c與第四側邊116d旁。In this embodiment, the sealing structure 116 further has a third side 116c and a fourth side 116d. The third side 116c connects the first side 116a and the second side 116b, and the fourth side 116d connects the first side 116a and the second side 116b. In other words, the sealing structure 116 is, for example, a rectangular frame. In other embodiments, the anode 150 and the cathode 160 may also be disposed beside the third side 116c and the fourth side 116d of the sealing structure 116, respectively.
以下表二舉出本實施例之發光元件100a的各項參數的一實施例，但其只是用以作為舉例說明，並不是用以限制本發明的範疇。An example of the various parameters of the light-emitting element 100a of the present embodiment is shown in the following Table 2, but is for illustrative purposes only and is not intended to limit the scope of the present invention.
表二舉出兩組發光元件100a，而表二中各數值的物理意義請參照表一的說明，在此不再重述。Table 2 cites two sets of light-emitting elements 100a, and the physical meanings of the values in Table 2 are as described in Table 1, and will not be repeated here.
圖6A為本發明之又一實施例之發光元件於白天使用時的剖面示意圖，圖6B為圖6A之發光元件於夜晚使用時的剖面示意圖，而圖6C為圖6A之發光元件的正視圖。請參照圖6A至圖6C，本實施例之發光元件100b類似於圖2之發光元件100，兩者中相同的標號代表相同或相似的元件，而兩者的差異處如下所述。本實施例之發光元件100b更包括一太陽能模組192，且密封結構116的第一側邊116a位於太陽能模組192與密閉空間120之間。在本實施例中，太陽能模組192同時配置於密封結構116的第一側邊116a、第二側邊116b、第三側邊116c與第四側邊116d旁，亦即太陽能模組192環繞密封結構116。然而，在其他實施例中，太陽能模組192亦可以是配置於第一側邊116a、第二側邊116b、第三側邊116c與第四側邊116d中的一者、二者或三者旁。太陽能模組192例如為矽晶太陽能電池、微晶太陽能電池、矽薄膜太陽能電池、三五族太陽能電池、銅銦硒(copper indium diselenide,CIS)太陽能電池、銅銦鎵硒(copper indium gallium diselenide,CIGS)太陽能電池、碲化鎘(CdTe)太陽能電池、多接面太陽能電池、有機高分子太陽能電池或染料敏化電池。6A is a schematic cross-sectional view of a light-emitting element according to still another embodiment of the present invention, wherein FIG. 6B is a cross-sectional view of the light-emitting element of FIG. 6A at night, and FIG. 6C is a front view of the light-emitting element of FIG. 6A. Referring to FIGS. 6A to 6C, the light-emitting element 100b of the present embodiment is similar to the light-emitting element 100 of FIG. 2, and the same reference numerals are used for the same or similar elements, and the differences between the two are as follows. The light emitting device 100b of the embodiment further includes a solar module 192, and the first side 116a of the sealing structure 116 is located between the solar module 192 and the sealed space 120. In this embodiment, the solar module 192 is disposed at the side of the first side 116a, the second side 116b, the third side 116c, and the fourth side 116d of the sealing structure 116, that is, the solar module 192 is sealed. Structure 116. However, in other embodiments, the solar module 192 may also be disposed on one, two, or three of the first side 116a, the second side 116b, the third side 116c, and the fourth side 116d. Next. The solar module 192 is, for example, a twinned solar cell, a microcrystalline solar cell, a germanium thin film solar cell, a three-five solar cell, a copper indium diselenide (CIS) solar cell, or a copper indium gallium diselenide (copper indium gallium diselenide). CIGS) Solar cells, cadmium telluride (CdTe) solar cells, multi-junction solar cells, organic polymer solar cells or dye-sensitized cells.
此外，在本實施例中，發光元件100b更包括一紅外光反射膜118，配置於第一基板112或第二基板114上，在圖6A與圖6B中是以配置於第一基板112上為例。紅外光反射膜118例如為光學多層膜、具有表面微結構的膜層或化學塗料，以達到紅外光反射的效果。In addition, in the present embodiment, the light-emitting element 100b further includes an infrared light reflecting film 118 disposed on the first substrate 112 or the second substrate 114, and is disposed on the first substrate 112 in FIGS. 6A and 6B. example. The infrared light reflecting film 118 is, for example, an optical multilayer film, a film layer having a surface microstructure, or a chemical paint to achieve an infrared light reflecting effect.
當發光元件100b用以取代真空玻璃而於白天使用時，可關閉電源170而不使發光元件100b發光，此時戶外的自然光(包括紅外光54與可見光52)會依序經由陰極160、第二基板114與低壓氣體122而傳遞至發光層140。螢光層140會對部分紅外光54與部分可見光52產生散射作用，而將部分紅外光54與部分可見光52散射至太陽能模組192。另一部分可見光52則會穿透螢光層140，並繼續穿透第一基板112與陽極150而傳遞至室內。如此一來，室內的使用者便能夠利用戶外的自然光，且亦能透過發光元件100b看到戶外的景色。當第一基板112上配置有紅外光反射膜118時，可見光52仍會穿透紅外光反射膜118而抵達室內。此外，當第一基板112上配置有紅外光反射膜118時，來自戶外的紅外光54則會被紅外光反射膜118反射，並經由第一基板112與第二基板114的反射作用而傳遞至太陽能模組192。如此一來，紅外光54便不會進入至室內，而達到加強隔熱的效果。When the light-emitting element 100b is used in place of the vacuum glass for daylight use, the power source 170 can be turned off without the light-emitting element 100b emitting light. At this time, the outdoor natural light (including the infrared light 54 and the visible light 52) will sequentially pass through the cathode 160 and the second. The substrate 114 is transferred to the light emitting layer 140 with the low pressure gas 122. The phosphor layer 140 scatters part of the infrared light 54 and part of the visible light 52, and scatters part of the infrared light 54 and part of the visible light 52 to the solar module 192. Another portion of the visible light 52 will penetrate the phosphor layer 140 and continue to penetrate the first substrate 112 and the anode 150 for delivery to the chamber. In this way, the indoor user can utilize the outdoor natural light and can also see the outdoor scenery through the light-emitting element 100b. When the infrared light reflecting film 118 is disposed on the first substrate 112, the visible light 52 still penetrates the infrared light reflecting film 118 and reaches the room. In addition, when the infrared light reflecting film 118 is disposed on the first substrate 112, the infrared light 54 from the outdoor is reflected by the infrared light reflecting film 118 and transmitted to the second substrate 112 and the second substrate 114 through the reflection function. Solar module 192. In this way, the infrared light 54 does not enter the room, and the effect of strengthening the heat insulation is achieved.
太陽能模組192接收了可見光52與紅外光54的能量後，便會產生電力，而電性連接至太陽能模組192的一蓄電池194則可用以儲存太陽能模組192的電力。After the solar module 192 receives the energy of the visible light 52 and the infrared light 54, the power is generated, and a battery 194 electrically connected to the solar module 192 can be used to store the power of the solar module 192.
當發光元件100b用以取代真空玻璃而於夜晚使用時，可開啟電源170而使發光元件100b發光，此時螢光層140受到電子180的撞擊後會發出光142(例如為可見光)。光142除了可經由第一基板112傳遞至室內或經由第二基板114傳遞至戶外之外，部分光142亦可受到第一基板112與第二基板114的反射作用及螢光層140的散射作用而傳遞至太陽能模組192，而使太陽能模組192能夠回收沒有利用到的光142之能量。When the light-emitting element 100b is used at night instead of the vacuum glass, the power source 170 can be turned on to cause the light-emitting element 100b to emit light. At this time, the fluorescent layer 140 emits light 142 (for example, visible light) after being struck by the electrons 180. The light 142 can be transmitted to the room via the first substrate 112 or to the outside through the second substrate 114, and the partial light 142 can also be reflected by the first substrate 112 and the second substrate 114 and the scattering effect of the fluorescent layer 140. The solar module 192 is passed to the solar module 192 to enable the solar module 192 to recover the energy of the unutilized light 142.
因此，發光元件100b能夠於白天時吸收與儲存自然光的能量，以作為夜晚時發光元件100b發光的能量來源之一。此外，即使發光元件100b於夜晚發光時，對於未能傳遞至發光元件100b外部的光142亦能加以回收。所以，本實施例之發光元件100b可有效地達到節能的效果。Therefore, the light-emitting element 100b can absorb and store the energy of the natural light during the day as one of the energy sources for the light-emitting element 100b to emit light at night. Further, even when the light-emitting element 100b emits light at night, light 142 that is not transmitted to the outside of the light-emitting element 100b can be recovered. Therefore, the light-emitting element 100b of the present embodiment can effectively achieve the effect of energy saving.
圖7為本發明之再一實施例之發光元件的正視圖。請參照圖7，本實施例之發光元件100c類似於圖5B的發光元件100a及圖6A的發光元件100b，三者中相同的標號代表相同或相似的元件，而三者的差異如下所述。本實施例之發光元件100c採用了圖5B之配置於發光元件100a的兩側面的陽極150與陰極160，而太陽能模組192則配置於發光元件100a的另外兩側面。具體而言，陽極150與陰極160分別配置於密封結構116的第一側邊116a與第二側邊116b旁，而太陽能模組192則配置於密封結構116的第三側邊116c與第四側邊116d旁。然而，在其他實施例中，太陽能模組192亦可以僅配置於第三側邊116c或第四側邊116d旁。Fig. 7 is a front elevational view showing a light-emitting element according to still another embodiment of the present invention. Referring to FIG. 7, the light-emitting element 100c of the present embodiment is similar to the light-emitting element 100a of FIG. 5B and the light-emitting element 100b of FIG. 6A, and the same reference numerals are used for the same or similar elements, and the differences of the three are as follows. The light-emitting element 100c of the present embodiment employs the anode 150 and the cathode 160 disposed on both sides of the light-emitting element 100a of FIG. 5B, and the solar module 192 is disposed on the other two sides of the light-emitting element 100a. Specifically, the anode 150 and the cathode 160 are respectively disposed beside the first side 116a and the second side 116b of the sealing structure 116, and the solar module 192 is disposed on the third side 116c and the fourth side of the sealing structure 116. Next to the side 116d. However, in other embodiments, the solar module 192 may also be disposed only beside the third side 116c or the fourth side 116d.
圖8為本發明之另一實施例之發光元件的剖面示意圖。請參照圖8，本實施例之發光元件100d與圖2之發光元件100類似，兩者中相同的標號代表相同或相似的元件，而兩者的差異如下所述。本實施例之發光元件100d的製程可從真空玻璃的製程改良而來，而本實施例之製程相較於真空玻璃的製程增加了陽極150、陰極160與螢光層140的形成。在本實施例中，發光元件100d更包括複數個間隔物(spacer)195，分散地配置於第一基板112與第二基板114之間，以保持第一基板112與第二基板114之間的距離，並吸收應力。此外，發光元件100d的一側可貼附有厚玻璃60，以增加整體結構的強度。Figure 8 is a cross-sectional view showing a light-emitting element according to another embodiment of the present invention. Referring to FIG. 8, the light-emitting element 100d of the present embodiment is similar to the light-emitting element 100 of FIG. 2, and the same reference numerals are used for the same or similar elements, and the differences between the two are as follows. The process of the light-emitting element 100d of the present embodiment can be improved from the process of vacuum glass, and the process of the present embodiment increases the formation of the anode 150, the cathode 160 and the phosphor layer 140 compared to the process of vacuum glass. In this embodiment, the light-emitting element 100d further includes a plurality of spacers 195 disposed between the first substrate 112 and the second substrate 114 to maintain the gap between the first substrate 112 and the second substrate 114. Distance and absorb stress. Further, one side of the light-emitting element 100d may be attached with a thick glass 60 to increase the strength of the overall structure.
圖9為本發明之另一實施例之發光元件的剖面示意圖。請參照圖9，本實施例之發光元件100e類似於圖5A的發光元件100a及圖8之發光元件100d類似，三者中相同的標號代表相同或相似的元件，而三者的差異如下所述。本實施例之發光元件100e是採用圖5A之配置於發光元件100a的兩側面之電極及圖8之改良自真空玻璃製程之製程。具體而言，在本實施例中，陽極150與陰極160配置於密封結構116兩旁，而發光元件100e的一側亦貼附有厚玻璃60。Fig. 9 is a cross-sectional view showing a light-emitting element according to another embodiment of the present invention. Referring to FIG. 9, the light-emitting element 100e of the present embodiment is similar to the light-emitting element 100a of FIG. 5A and the light-emitting element 100d of FIG. 8. The same reference numerals in the three are the same or similar elements, and the differences between the three are as follows. . The light-emitting element 100e of the present embodiment is a process in which the electrodes disposed on both sides of the light-emitting element 100a of FIG. 5A and the modified self-vacuum glass process of FIG. Specifically, in the present embodiment, the anode 150 and the cathode 160 are disposed on both sides of the sealing structure 116, and a thick glass 60 is attached to one side of the light-emitting element 100e.
圖10為本發明之一實施例之顯示裝置的示意圖。請參照圖10，本實施例之顯示裝置200包括複數個上述發光元件100，其中這些發光元件100排列成一陣列。在其他實施例中，顯示裝置200亦可以是包括複數個上述發光元件100a、100b、100c、100d或100e，而在本實施例中是以發光元件100為例來作說明。這些發光元件100例如是排列成二維陣列，如此，當發光元件100用以作為建築物的玻璃帷幕時，每一個發光元件100便能夠作為一個畫素，而使這些發光元件100形成一大型顯示牆。具體而言，這些發光元件100可藉由發光或不發光、發出不同亮度的光或發出不同顏色的光來形成動態或靜態的顯示畫面。此外，當這些發光元件100的尺寸作得很小時，這些發光元件100亦可以構成較小型的顯示器。Figure 10 is a schematic illustration of a display device in accordance with one embodiment of the present invention. Referring to FIG. 10, the display device 200 of the present embodiment includes a plurality of the above-mentioned light-emitting elements 100, wherein the light-emitting elements 100 are arranged in an array. In other embodiments, the display device 200 may also include a plurality of the above-mentioned light-emitting elements 100a, 100b, 100c, 100d or 100e. In the present embodiment, the light-emitting elements 100 are taken as an example for illustration. The light-emitting elements 100 are arranged, for example, in a two-dimensional array. Thus, when the light-emitting element 100 is used as a glass curtain of a building, each of the light-emitting elements 100 can serve as a pixel, and the light-emitting elements 100 form a large display. wall. In particular, these light-emitting elements 100 can form a dynamic or static display by emitting or not emitting light, emitting light of different brightness, or emitting light of different colors. Further, when the size of these light-emitting elements 100 is made small, these light-emitting elements 100 can also constitute a smaller display.
在本實施例中，顯示裝置200更包括複數條第一訊號線220、複數條第二訊號線210、一個行驅動電路240及一個列驅動電路230。每一第一訊號線220電性連接至一行的這些發光元件100的這些陽極150(如圖2所繪示)，每一第二訊號線210電性連接至一列的這些發光元件100的這些陰極160(如圖2所繪示)。行驅動電路240電性連接至這些第一訊號線220，其中行驅動電路240用以選擇性地驅動這些第一訊號線220。列驅動電路230電性連接至這些第二訊號線210，其中列驅動電路230用以選擇性地驅動這些第二訊號線210。舉例而言，當行驅動電路240將圖10右邊數來的第一與第二條第一訊號線220開啟時，且當列驅動電路230將圖10中最中間的那條第二訊號線210開啟時，則圖10中畫斜線的兩個發光元件100即發出光線。此外，行驅動電路240與列驅動電路230可電性連接至一控制單元250。控制單元250可根據程式或預先燒錄的資料來決定如何藉由行驅動電路240與列驅動電路230以驅動發光元件100，進而使這些發光元件100形成程式或燒錄的資料中所欲達到的靜態或動態的畫面。In the embodiment, the display device 200 further includes a plurality of first signal lines 220, a plurality of second signal lines 210, a row driving circuit 240, and a column driving circuit 230. Each of the first signal lines 220 is electrically connected to the anodes 150 of the light-emitting elements 100 of one row (as shown in FIG. 2 ), and each of the second signal lines 210 is electrically connected to the cathodes of the columns of the light-emitting elements 100 . 160 (as shown in Figure 2). The row driving circuit 240 is electrically connected to the first signal lines 220, wherein the row driving circuit 240 is configured to selectively drive the first signal lines 220. The column driving circuit 230 is electrically connected to the second signal lines 210, wherein the column driving circuit 230 is configured to selectively drive the second signal lines 210. For example, when the row driving circuit 240 turns on the first and second first signal lines 220 on the right side of FIG. 10, and when the column driving circuit 230 turns the second signal line 210 in the middle of FIG. When turned on, the two light-emitting elements 100, which are diagonally drawn in Fig. 10, emit light. In addition, the row driving circuit 240 and the column driving circuit 230 can be electrically connected to a control unit 250. The control unit 250 can determine, according to the program or the pre-programmed data, how to drive the light-emitting elements 100 by the row driving circuit 240 and the column driving circuit 230, thereby forming the light-emitting elements 100 into a program or a burned material. Static or dynamic picture.
圖11為本發明之另一實施例之顯示裝置的示意圖。請參照圖11，本實施例之顯示裝置200a與圖10的顯示裝置200類似，兩者中相同的標號代表相同或相似的元件，而兩者的差異如下所述。本實施例之顯示裝置200a包括複數個驅動電路(驅動電路可包括陽極訊號線210a與陰極訊號線220a)，分別電性連接至這些發光元件100，以各別驅動這些發光元件100。舉例而言，陽極訊號線210a電性連接至發光元件100的陽極150(如圖2所繪示)，而陰極訊號線220a電性連接至發光元件100的陰極160(如圖2所繪示)。當電壓施加於連接至同一個發光元件100的陽極訊號線210a與陰極訊號線220a時，便可驅使此發光元件100發光。舉例而言，連接至圖11中以斜線繪示的兩個發光元件100的陽極訊號線210a與陰極訊號線220a皆開啟，因此此二個發光元件100便能發光。Figure 11 is a schematic illustration of a display device in accordance with another embodiment of the present invention. Referring to FIG. 11, the display device 200a of the present embodiment is similar to the display device 200 of FIG. 10, wherein the same reference numerals denote the same or similar elements, and the differences between the two are as follows. The display device 200a of the present embodiment includes a plurality of driving circuits (the driving circuit may include an anode signal line 210a and a cathode signal line 220a) electrically connected to the light emitting elements 100 to drive the light emitting elements 100 respectively. For example, the anode signal line 210a is electrically connected to the anode 150 of the light emitting element 100 (as shown in FIG. 2), and the cathode signal line 220a is electrically connected to the cathode 160 of the light emitting element 100 (as shown in FIG. 2). . When a voltage is applied to the anode signal line 210a and the cathode signal line 220a connected to the same light-emitting element 100, the light-emitting element 100 can be driven to emit light. For example, the anode signal line 210a and the cathode signal line 220a connected to the two light-emitting elements 100 shown obliquely in FIG. 11 are both turned on, so that the two light-emitting elements 100 can emit light.
在其他實施例中，顯示裝置200a亦可以是包括複數個上述發光元件100a、100b、100c、100d或100e。In other embodiments, the display device 200a may also include a plurality of the above-described light emitting elements 100a, 100b, 100c, 100d or 100e.
綜上所述，在本發明之實施例之發光元件中，由於陽極與陰極位於密閉容器的外側，因此能夠有效避免陽極與陰極因受到離子或電子的撞擊而被破壞，所以發光元件的使用壽命可被有效地延長。此外，相較於習知氣體放電光源，本發明之實施例之發光元件不需經由兩道過程來產生光線，因此發光效率較高，也可減少能量損耗。另外，相較於習知場發射光源，本發明之實施例之發光元件內填充稀薄的氣體，因此不需超高真空度環境，如此可避免進行超高真空度封裝時所遇到的困難。再者，相較於場發射光源較難達到均勻發光，在本發明之實施例之發光元件中，利用均勻塗佈螢光層的方式即可簡易地達成均勻地發光，因此製程較為簡易。除此之外，本發明之實施例之發光元件結構簡單，因此製程亦較為簡易。In summary, in the light-emitting element of the embodiment of the present invention, since the anode and the cathode are located outside the sealed container, the anode and the cathode can be effectively prevented from being damaged by the impact of ions or electrons, so the service life of the light-emitting element Can be effectively extended. In addition, compared with the conventional gas discharge light source, the light-emitting element of the embodiment of the present invention does not need to generate light through two processes, so the luminous efficiency is high, and the energy loss can also be reduced. In addition, compared with the conventional field emission light source, the light-emitting element of the embodiment of the present invention is filled with a thin gas, so that an ultra-high vacuum environment is not required, so that the difficulty encountered in ultra-high vacuum packaging can be avoided. Furthermore, in the light-emitting element of the embodiment of the present invention, uniform light emission can be easily achieved by uniformly coating the phosphor layer, and the process is relatively simple. In addition, the light-emitting element of the embodiment of the present invention has a simple structure, and therefore the process is relatively simple.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，當可作些許之更動與潤飾，故本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.
52．．．可見光52. . . Visible light
54．．．紅外光54. . . Infrared light
60．．．厚玻璃60. . . Thick glass
100、100a、100b、100c、100d、100e．．．發光元件100, 100a, 100b, 100c, 100d, 100e. . . Light-emitting element
110．．．密閉容器110. . . sealed container
112．．．第一基板112. . . First substrate
114．．．第二基板114. . . Second substrate
116．．．密封結構116. . . Sealing structure
116a．．．第一側邊116a. . . First side
116b．．．第二側邊116b. . . Second side
116c．．．第三側邊116c. . . Third side
116d．．．第四側邊116d. . . Fourth side
118．．．紅外光反射膜118. . . Infrared light reflecting film
120．．．密閉空間120. . . hermetic space
122．．．低壓氣體122. . . Low pressure gas
130．．．氣體離子130. . . Gas ion
140．．．螢光層140. . . Fluorescent layer
142．．．光142. . . Light
150．．．陽極150. . . anode
160．．．陰極160. . . cathode
170．．．電源170. . . power supply
180．．．電子180. . . electronic
192．．．太陽能模組192. . . Solar module
194．．．蓄電池194. . . Battery
195．．．間隔物195. . . Spacer
200、200a．．．顯示裝置200, 200a. . . Display device
210．．．第二訊號線210. . . Second signal line
210a．．．陽極訊號線210a. . . Anode signal line
220．．．第一訊號線220. . . First signal line
220a．．．陰極訊號線220a. . . Cathode signal line
230．．．列驅動電路230. . . Column drive circuit
240．．．行驅動電路240. . . Row driver circuit
250．．．控制單元250. . . control unit
圖1繪示傳統發光結構與本發明之發光元件的發光機制比較圖。1 is a view showing a comparison of a light-emitting mechanism of a conventional light-emitting structure and a light-emitting element of the present invention.
圖2為本發明之一實施例之發光元件的剖面示意圖。2 is a schematic cross-sectional view showing a light-emitting element according to an embodiment of the present invention.
圖3A至圖3C為用以驅動圖2之發光元件的驅動電壓波形圖。3A to 3C are waveform diagrams of driving voltages for driving the light-emitting elements of Fig. 2.
圖4A至圖4D為用以驅動圖2之發光元件的另外四種驅動電壓波形圖。4A to 4D are diagrams of other four driving voltage waveforms for driving the light-emitting element of Fig. 2.
圖5A為本發明之另一實施例之發光元件的剖面示意圖。Fig. 5A is a cross-sectional view showing a light-emitting element according to another embodiment of the present invention.
圖5B為圖5A的發光元件的正視圖。Fig. 5B is a front elevational view of the light emitting element of Fig. 5A.
圖6A為本發明之又一實施例之發光元件於白天使用時的剖面示意圖。Fig. 6A is a schematic cross-sectional view showing a light-emitting element according to still another embodiment of the present invention when it is used during the day.
圖6B為圖6A之發光元件於夜晚使用時的剖面示意圖。6B is a schematic cross-sectional view of the light-emitting element of FIG. 6A when it is used at night.
圖6C為圖6A之發光元件的正視圖。Fig. 6C is a front elevational view of the light-emitting element of Fig. 6A.
圖7為本發明之再一實施例之發光元件的正視圖。Fig. 7 is a front elevational view showing a light-emitting element according to still another embodiment of the present invention.
圖8為本發明之另一實施例之發光元件的剖面示意圖。Figure 8 is a cross-sectional view showing a light-emitting element according to another embodiment of the present invention.
圖9為本發明之另一實施例之發光元件的剖面示意圖。Fig. 9 is a cross-sectional view showing a light-emitting element according to another embodiment of the present invention.
圖10為本發明之一實施例之顯示裝置的示意圖。Figure 10 is a schematic illustration of a display device in accordance with one embodiment of the present invention.
圖11為本發明之另一實施例之顯示裝置的示意圖。Figure 11 is a schematic illustration of a display device in accordance with another embodiment of the present invention.
100．．．發光元件100. . . Light-emitting element
110．．．密閉容器110. . . sealed container
112．．．第一基板112. . . First substrate
114．．．第二基板114. . . Second substrate
116．．．密封結構116. . . Sealing structure
120．．．密閉空間120. . . hermetic space
122．．．低壓氣體122. . . Low pressure gas
130．．．氣體離子130. . . Gas ion
140．．．螢光層140. . . Fluorescent layer
142．．．光142. . . Light
150．．．陽極150. . . anode
160．．．陰極160. . . cathode
170．．．電源170. . . power supply
180．．．電子180. . . electronic
Claims (27)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100113598A TWI442446B (en) | 2011-04-19 | 2011-04-19 | Light-emitting device and display apparatus |
| JP2011170544A JP2012227112A (en) | 2011-04-19 | 2011-08-03 | Light emitter and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100113598A TWI442446B (en) | 2011-04-19 | 2011-04-19 | Light-emitting device and display apparatus |
Publications (2)
| Publication Number | Publication Date |
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| TW201303958A true TW201303958A (en) | 2013-01-16 |
| TWI442446B TWI442446B (en) | 2014-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW100113598A TWI442446B (en) | 2011-04-19 | 2011-04-19 | Light-emitting device and display apparatus |
Country Status (2)
| Country | Link |
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| JP (1) | JP2012227112A (en) |
| TW (1) | TWI442446B (en) |
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| CN104078306A (en) * | 2013-03-29 | 2014-10-01 | 海洋王照明科技股份有限公司 | Field emission lamp |
| CN104078314A (en) * | 2013-03-29 | 2014-10-01 | 海洋王照明科技股份有限公司 | Field emission light source |
| CN104078307A (en) * | 2013-03-29 | 2014-10-01 | 海洋王照明科技股份有限公司 | Field emission light source |
| CN104078312A (en) * | 2013-03-26 | 2014-10-01 | 海洋王照明科技股份有限公司 | Field emission lamp |
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| CN104078323A (en) * | 2013-03-29 | 2014-10-01 | 海洋王照明科技股份有限公司 | Field emission folding lamp |
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| CN104078314A (en) * | 2013-03-29 | 2014-10-01 | 海洋王照明科技股份有限公司 | Field emission light source |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI442446B (en) | 2014-06-21 |
| JP2012227112A (en) | 2012-11-15 |
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