1292283 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種顯示面板，特別是關於一種雙面皆 可進行影像之顯示的顯示面板。 【先前技術】1292283 IX. Description of the Invention: [Technical Field] The present invention relates to a display panel, and more particularly to a display panel capable of displaying an image on both sides. [Prior Art]
雙面顯示面板目前大多應用在一些可攜式電子產品 之中，例如一些手機之内外螢幕即為雙面顯示面板之應 用。睛參照圖一，其係為一習知雙面顯示面板側剖面示意 圖。雙面顯示面板10包括一液晶面板12、一背光模組14、 以及一有機電激發光面板（OLED panel) 16。背光模組14 提供液晶面板12 —背光源，以使得液晶面板12朝向上方 進行影像之顯示。而有機電激發光面板16則朝向下方 行影像之顯示。 · 田％穴夕應用隹可檇式電子產品之中，因此雙面顯示 面板10之尺寸通常不會太大，而如何使其越發輕薄則 技術發展之所趨。如圖-所示，為了縮小雙面顯示面板1〇 的體積，因此背光模組14通常採取側端入光（edge 的方式，而且其光源係採用發光二極體（LED) 141， 發光二極體141的小體積來使得雙面顯示面板10整體之 =十較為容易。發光二極體141發出之光線可經由導 M2以提供給其上方的液晶面板14。 主晷2而而f雙Ϊ顯示面板1〇之中，液晶_ 12通常為 ^ 143' ^ ^ 擴政片146。如此看來，背光模組14所= 5 1292283 含之元件眾多將造成縮減體積時設計上的困難度。 另一方面，在強調縮減體積的情況下，背光模組14 中的各元件皆需要特別訂製，無法與大型背光模組之元件 相通用，因此其光學效果也較受限制。而事實上，在如圖 一所示之習知雙面顯示面板10實際運作時，背光模組14 ，液晶面板12相配合則有下列之缺點：一、整體之亮度 :¾:限，不足；_二、發光二極體14造成顯示之影像色偏嚴 重，二、顯示時易有牛頓環（Newton，s ring)或雲彩紋 (moirepattern)等光學缺陷產生。其中關於上述第一點與 二，，點係可能與侧端人光之發光二極體14光源有’關， Ξt點則可能與小尺寸中必紐人多片的光學膜片（標 ί二Μ有關，或者亦可能是在』 ίίϊ或枝板142時，因尺寸體積較小，品質較不 易控制’因此造成上述之牛頓環或雲佩的產生。 缺點爰ί在板所健具有之 一5顧”、、頁 為與生產成本的前提下，提供 ^雙面顯不面板，係為本發明之發展目標。 【發明内容】 ϊ目的係在於提供-雙面顯示面板。 眾多，體積不易縮於改善f知雙面顯示面板元件 亮度峨齡面板體之 色偏ΐϊ 目祕在於改善f知雙面顯示面板影像 本發明之另-目的係在於改善習知雙面顯示面板易有 1292283 牛頓環或雲彩紋等光學缺陷。 本發明雙面顯示面板包括一液晶面板、一第一電激發 光結構以及一第二電激發光結構。第一電激發光結構設置 於液晶面板下方，並向上提供液晶面板一背光源。藉由第 一電激發光結構，液晶面板可向上方進行影像之顯示。第 一電激發光結構設置於第一電激發光結構下方，並向下方 進行影像之顯示。 第一電激發光結構與第二電激發光結構係屬於一雙 面電激發光面板。雙面電激發光面板設置於液晶面板下 方，其係由一上基板與一下基板而構成一密閉空間，其 中，第一電激發光結構係設置於上基板下表面；第二電& 發光結構係δχ置於下基板上表面。在本發明一較佳實施例 之中，係選用被動式有機電激發光結構（passive matrix OLED)來做為第-魏發光結制實财式，而選用主 動式有機電激發光結構（active matrix qled)來做為第二 電激發光結構的實财式。在其它實施财，第_^激^ 光結構亦可社動式有機電激發光結構，第二/: 構亦可為被動式有機電激發光結構。本發明亦提供^雔^ 顯示面板相關之製作方式。 又 本發明利用有機電激發光技術以取代傳 組，以提，給液晶面板一更可靠之背光源，習知雙月= 面板體之⑨度想衫足、影像色鎌重 _ 雲彩紋等光學缺陷之缺點係在本發日种予以改12= 1292283 【實施方式】 請參照圖二，圖二係為本發明雙面顯示面板側剖面示 意圖。雙面顯示面板30包括一液晶面板32、一第一電激 發光結構34以及一第二電激發光結構36。第一電激發光 結構34設置於液晶面板32下方，並向上提供液晶面板32 一背光源。藉由第一電激發光結構34，液晶面板32可向 上方進行影像之顯示。第二電激發光結構36設置於第一 電激發光結構34下方，並向下方進行影像之顯示。 液晶面板32由上至下係包括有上偏振片321、上玻璃 322、彩色濾光片323、液晶層324、下玻璃325以及下偏 振片326’且在上玻璃322與下玻璃325之間係有框谬327 ί衣繞在液sa層324周圍’以將液晶層324封裝於其中。下 玻璃325之上表面具有陣列之薄膜電晶體，可調g液晶層 324中不同位置的液晶分子的旋轉角度，與上偏振片32\ 及下偏振片326相配合則可調控來自第一電激發光結構34 之光線的穿透率，如此一來則可顯示出具有灰階的影像， 藉著彩色濾光片323則可顯示出具有色彩之影像。 第一電激發光結構34與第二電激發光結構36係屬於 一雙面電激發光面板33。雙面電激發光面板33設置於液 晶面板32下方，其係由一上基板331與一下基板332而 構成一密閉空間，其中，第一電激發光結構34係設置於 上基板331下表面，第二電激發光結構36係設置於下某 板332上表面。 、土 其中’第一電激發光結構34之主要功能係用以提供 背光源予液晶面板32，而第二電激發光結構36則獨立^ 行影像之顯示。在本發明一較佳實施例之中，係選用被 式有機電激發光結構（passive matrix OLED)來做為第一 電激發光結構34的實施方式，而選用主動式有機^激發Most of the double-sided display panels are currently used in some portable electronic products. For example, the internal and external screens of some mobile phones are applications of double-sided display panels. Referring to Figure 1, it is a side cross-sectional view of a conventional double-sided display panel. The double-sided display panel 10 includes a liquid crystal panel 12, a backlight module 14, and an organic OLED panel 16. The backlight module 14 provides a backlight for the liquid crystal panel 12 such that the liquid crystal panel 12 is displayed upward toward the image. On the other hand, the organic electroluminescent panel 16 displays the image toward the lower side. · Tian% is applied to electronic products, so the size of the double-sided display panel 10 is usually not too large, and how to make it lighter and thinner is the trend of technology development. As shown in FIG. 3, in order to reduce the volume of the double-sided display panel 1 背光, the backlight module 14 generally adopts a side-end light (edge), and the light source is a light-emitting diode (LED) 141, and a light-emitting diode. The small volume of the body 141 makes the double-sided display panel 10 as a whole easier. The light emitted by the light-emitting diode 141 can be supplied to the liquid crystal panel 14 above it via the guide M2. Among the panel 1 液晶, the liquid crystal _ 12 is usually ^ 143 ' ^ ^ expansion sheet 146. It seems that the backlight module 14 = 5 1292283 contains a large number of components which will cause design difficulties in reducing the volume. On the other hand, in the case of emphasizing the reduction of the volume, each component in the backlight module 14 needs to be specially customized, and cannot be used with the components of the large backlight module, so the optical effect is also limited. In fact, in the case When the conventional double-sided display panel 10 shown in FIG. 1 is actually operated, the backlight module 14 and the liquid crystal panel 12 cooperate to have the following disadvantages: 1. Overall brightness: 3⁄4: limit, insufficient; _2, light-emitting diode Body 14 causes the displayed image to be severely colored Second, the display is easy to have Newton, s ring or moire pattern and other optical defects. Among the above first and second, the point may be with the side end of the human light of the LED body 14 light source There is a 'off, Ξt point may be related to the small size of the multi-film optical film (the ί Μ Μ, or may be in the 』 ίίϊ or the slab 142, because of the small size, the quality is not easy The control 'causes the above-mentioned Newton ring or cloud-peeling. The disadvantage 爰 在 在 在 在 板 板 板 板 板 板 板 板 板 板 板 板 板 、 、 、 、 、 、 、 、 、 、 、 页 页 页 页 页 页 页 双面 双面The development goal is to provide a double-sided display panel. The volume is not easy to shrink, and the brightness of the double-sided display panel component is improved. Display panel image Another object of the present invention is to improve the optical defects such as 1292283 Newton ring or cloud pattern in the conventional double-sided display panel. The double-sided display panel of the present invention comprises a liquid crystal panel, a first electroluminescent structure and a second electroluminescent light structure is disposed under the liquid crystal panel and provides a backlight of the liquid crystal panel upward. The first electroluminescent light structure allows the liquid crystal panel to display the image upward. The electro-excitation light structure is disposed under the first electro-excitation light structure and displays the image downward. The first electro-excitation light structure and the second electro-excitation light structure belong to a double-sided electro-expansion light panel. The panel is disposed under the liquid crystal panel, and is formed by an upper substrate and a lower substrate to form a sealed space, wherein the first electroluminescent structure is disposed on the lower surface of the upper substrate; and the second electrical & The upper surface of the substrate. In a preferred embodiment of the present invention, a passive organic OLED is used as the first-dimensional illuminating system, and an active organic illuminating structure is selected (active matrix qled). ) as a real financial formula for the second electroluminescent structure. In other implementations, the _^ laser structure may also be a social organic electroluminescence structure, and the second/: structure may also be a passive organic electroluminescence structure. The invention also provides a manufacturing method related to the display panel. In addition, the present invention utilizes organic electro-optic light technology to replace the sub-group, so as to provide a more reliable backlight for the liquid crystal panel, and the conventional double-month = 9-degree panel body, image color, _ cloud pattern, etc. The shortcomings of the defect are changed in the present day. 12= 1292283 [Embodiment] Please refer to FIG. 2, which is a schematic cross-sectional view of the double-sided display panel of the present invention. The double-sided display panel 30 includes a liquid crystal panel 32, a first electroluminescent structure 34, and a second electroluminescent structure 36. The first electroluminescent light structure 34 is disposed under the liquid crystal panel 32 and provides a backlight of the liquid crystal panel 32 upward. With the first electroluminescent structure 34, the liquid crystal panel 32 can display the image upward. The second electroluminescent light structure 36 is disposed under the first electroluminescent light structure 34 and displays the image downward. The liquid crystal panel 32 includes an upper polarizing plate 321, an upper glass 322, a color filter 323, a liquid crystal layer 324, a lower glass 325, and a lower polarizing plate 326' from top to bottom and is between the upper glass 322 and the lower glass 325. A frame 327 327 is wrapped around the liquid sa layer 324 to encapsulate the liquid crystal layer 324 therein. The upper surface of the lower glass 325 has an array of thin film transistors, and the rotation angle of the liquid crystal molecules at different positions in the liquid crystal layer 324 can be adjusted, and the upper polarizing plate 32 and the lower polarizing plate 326 can be combined to adjust the first electrical excitation. The transmittance of the light of the light structure 34, in this way, can display an image with a gray scale, and the color filter 323 can display an image with color. The first electroluminescent light structure 34 and the second electroluminescent light structure 36 are associated with a double-sided electroluminescent panel 33. The double-sided electroluminescent panel 33 is disposed under the liquid crystal panel 32. The upper substrate 331 and the lower substrate 332 form a sealed space. The first electroluminescent structure 34 is disposed on the lower surface of the upper substrate 331. The second electroluminescent structure 36 is disposed on the upper surface of the lower plate 332. The main function of the first electroluminescent structure 34 is to provide a backlight to the liquid crystal panel 32, and the second electroluminescent structure 36 is independent of the display of the image. In a preferred embodiment of the present invention, an organic electroluminescent structure (passive matrix OLED) is selected as the first electroluminescent structure 34, and an active organic excitation is used.
1292283 是二圖四僅顯示三個薄膜電晶體39以作為代表。如圖四 所示，每一區塊的下電極361分別與一薄膜電晶體39電 性連接。 接著，係進行關於製作有機電激發光結構（0IJED)後 續之鍍膜步驟，首先形成下傳輸層362，接著分別在三個 =組的薄膜電晶體39所相對應的區域中，分別形成一紅 光膜層363R、一綠光膜層363G以及一藍光膜層363B， 其係分別形成於一下傳輸層362之上，之後進行3上傳輸層 3^4與上電極365之鍍膜。藉此，則完成三個一組的發光 單元40R ' 40G與40B的製作。 其中，上電極365係選用不透光且可反射光的金屬， 下電極361係為導電且可透光之材質，可採用例如銦錫氧 化物（ιτο)，而上電極365與下電極361視其電位之不同 可互為正極或負極，並不予以限定，同理，上傳輸層364 與下傳輸層362 ΐ互為傳輸電子或電洞，並不予以限定之。 電子與電洞在紅光膜層363R、綠光膜層363G或藍光 膜層363Β，合後以產生光線的方式來釋放能量，紅光、 綠光或藍光係經由下電極365而穿透下基板332，因此， 本實施例第二f激發光結構36刺於—紐光（b〇tt〇m emission) 式之主動式有機電激發光結構。而個別的薄臈 用Γί為開關，以主動控制紅光、綠光或藍 f上丨、之有上電ί發光結構（〇_係構成為-書素 (_) ’複數個晝素陣列排列於第二電激發光結構36 一中， 如此-來’其射顯示具有色彩的影像。 :’本發明之雙面電激發光面板33亦可有之 只施方式，例如，作為液⑽板 ^ 一電激發光結構34亦可南丨田闻5 ;，月尤^原的弟 恭氺4士媸以〜：J利用圖四所不之主動式有機電激 發从構〜‘惟其成本會較被動式有機魏發光結構 1292283 面，作為f光源首要之考量係在於提供整 句勻且贵度足細姐，因此以圖三所示之被動1292283 is the second figure four showing only three thin film transistors 39 as a representative. As shown in FIG. 4, the lower electrodes 361 of each block are electrically connected to a thin film transistor 39, respectively. Next, a step of coating the organic electroluminescent structure (0IJED) is performed, first forming a lower transport layer 362, and then respectively forming a red light in a region corresponding to the three thin film transistors 39 of the group The film layer 363R, the green light film layer 363G, and the blue light film layer 363B are respectively formed on the lower transfer layer 362, and then the upper transfer layer 3^4 and the upper electrode 365 are coated. Thereby, the production of the three sets of the light-emitting units 40R' 40G and 40B is completed. The upper electrode 365 is made of a metal that is opaque and reflects light, and the lower electrode 361 is made of a conductive and light-transmissive material, for example, indium tin oxide (ιτο), and the upper electrode 365 and the lower electrode 361 are regarded. The difference in potential may be positive or negative, and is not limited. Similarly, the upper transmission layer 364 and the lower transmission layer 362 are mutually transmitting electrons or holes, and are not limited. The electrons and the holes are discharged in the red light film layer 363R, the green light film layer 363G or the blue light film layer 363, and the light is released to generate light. The red light, the green light or the blue light penetrates the lower substrate via the lower electrode 365. 332. Therefore, the second f-excited light structure 36 of the present embodiment is punctured with an active organic electroluminescent structure of the type of light-emitting electrons. The individual thin 臈 is used as a switch to actively control red, green or blue f, and has a power-on ί light-emitting structure (〇 _ is composed of - book (_) 'multiple array of elements In the second electroluminescent light structure 36, the image is displayed in a color-like manner. The double-sided electroluminescent panel 33 of the present invention may also be applied only as a liquid (10) board. An electro-excitation structure 34 can also be heard by Nantian Tian 5;, Yue You ^'s brother Gong Gong 4 Shi Yan ~ ~ J using the active organic electro-excitation of Figure 4 - 'only its cost will be more passive The organic Wei luminescent structure 1292283 surface, as the primary consideration of the f light source is to provide a whole sentence and the average degree of sister, so the passive shown in Figure 3
電激發光結構來作為液晶面板32之背光源已能成I 且相較於使㈣光模組、(圖—標號ΐ 2知技哼而吕，由於有機電激發光結構(oled 整體的膜厚僅介於1G微来至2g微来，因“ > 、使得雙面顯示面板3〇達到薄型化的目的。 •114$另方面苐一電激發光結構36亦可採用被動式右 ίΪΐΪίϊ構以實施，其結構示於圖五，相較於圖四之 36 發光結構而言，圖五之第二電激發光結構 =H電晶體（圖四標號39)，然而其係類似3 3-红ΐίΐ 3=光單元微、4GG與棚，係分別具 Li， 綠色膜層363g、與一藍色臈層 ϋϋίί顯if理也雷同於圖四之主動式有機電激發 一疋，因為其不具有薄臈電晶體39以作為開關， 以=對於圖五之實施例而言，在其進行影像之顯示時，在 m 較為複雜且困難’且圖四主動式有機電激 = 命週期係可長於圖五之被動式有機電激發 无結構。 在製作本發明雙面顯示面板30時，係可分別製作液 曰曰面板32與雙面電激發光面板％。關於雙面電激發光面 板ϋ之製作，係可在上基板331其中一表面形成第一電 激發光結構34，該表面係定義為上基板331之下表面；而 在下基，332其中一表面形成第二電激發光結構允，該表 下基板332之上表面。第—電激發光結構別 與^- =激發光結構36係可為上述之各種可能實施例的 組:。而無論在任何一種實施例之中，考慮到有機材 料易文潮而遭水氣破壞的特性，其製造過程需要在無水的 11 4 1292283 環境下，以例如高氮氣的機器設備中進行，且在此條件 下，將上基板331之下表面面向下基板332之上表面而對 封，如圖二所示，其係以框膠35環接上基板331與下基板 332之週圍部份，並將第一電激發光結構％與第二電激發 光結構36後、封於其中。在一實施例中，係可在其密閉空間 中設置乾燥劑，以確保無水狀態。 ’、The electroluminescence structure is used as the backlight of the liquid crystal panel 32, and can be compared with the (four) optical module, and the organic electroluminescence structure (the film thickness of the oled whole is only Between 1G micro and 2g micro, because of the >, the double-sided display panel 3〇 is thinned. • 114$ Another aspect, the electro-excitation structure 36 can also be implemented by passive right-clicking. The structure is shown in Fig. 5. Compared with the 36-emission structure of Fig. 4, the second electro-excitation structure of Fig. 5 = H-electrode (Fig. 4, reference 39), but the system is similar to 3 3-red ΐ ΐ 3 = The light unit micro, 4GG and shed, respectively, have Li, green film layer 363g, and a blue layer ϋϋ ί ί if 也 也 也 也 也 雷 雷 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动 主动As a switch, = for the embodiment of Figure 5, when it is displayed, the m is more complicated and difficult' and the active organic electro-active current cycle of Figure 4 can be longer than the passive organic electricity of Figure 5. Exciting no structure. When making the double-sided display panel 30 of the present invention, The liquid helium panel 32 and the double-sided electroluminescent panel % can be separately fabricated. For the fabrication of the double-sided electroluminescent panel, a first electroluminescent structure 34 can be formed on one surface of the upper substrate 331, the surface is defined The lower surface of the upper substrate 331; and a surface of the lower substrate 332 forms a second electroluminescent light structure, the upper surface of the lower substrate 332. The first electro-excitation structure and the ^- = excitation light structure 36 It may be a group of the above various possible embodiments: in any of the embodiments, in view of the fact that the organic material is easily destroyed by water vapor, the manufacturing process needs to be in the anhydrous environment of 11 4 1292283. In a machine apparatus such as a high-nitrogen gas, and under the condition, the lower surface of the upper substrate 331 faces the upper surface of the lower substrate 332 to be sealed, as shown in FIG. 2, which is connected to the upper substrate by a sealant 35. 331 and a peripheral portion of the lower substrate 332, and the first electroluminescent light structure % and the second electroluminescent light structure 36 are sealed therein. In an embodiment, a desiccant may be disposed in the sealed space thereof. To ensure a waterless state. ,
綜上所述，本發明係提供了一種的雙面顯示面板，其 中，本發明利用有機電激發光技術以取代傳統之背光模 組，以提，給液晶面板一更可靠之背光源，習知雙面顯示 面板體之亮度受限或不足、影像色偏嚴重、易有環 ίίίίΐ學缺陷之缺點係不復見，且因有機電激發光結 構尽度極薄’使得雙面顯示面板之_化設収為容易。 本發明雖以較佳實例_如上，然其並制 於上述實施例。對熟悉此項技術者: 二了^易了解並利用其它元件或方式來產生相同的功效 ====神細⑽狀錢，均應包含 【圖式簡單說明】 述内所^ 圖;主動===== 圖。圖五絲另—被料有機紐發光結_剖面示意 1292283In summary, the present invention provides a double-sided display panel, wherein the present invention utilizes an organic electro-optic light technology to replace a conventional backlight module, thereby providing a more reliable backlight for the liquid crystal panel. The brightness of the double-sided display panel body is limited or insufficient, the image color is severely degraded, and the shortcomings of the ί ί ί ί ί , , , , , , , , , , , , , , , , , , , , , , , , , It is easy to set up. The present invention has been described in the above embodiments, although the preferred embodiment is as described above. For those who are familiar with this technology: Second, easy to understand and use other components or methods to produce the same effect ==== Shen fine (10) money, should include [simplified description of the schema] ==== Figure. Figure five wire another - is the material organic neon light junction _ profile indication 1292283
【主要元件符號說明】 雙面顯示面板10 背光模組14 發光二極體141 下擴散片143 上增光片145 雙面顯示面板30 第一電激發光結構34 上偏振片321 彩色濾光片323 下玻璃325 框膠327、35 下基板332 上電極341、365 橘光膜層343 下傳輸層345、362 紅光膜層363R 薄膜電晶體39 液晶面板12 有機電激發光面板16 導光板142 下增光片144 上擴散片146 液晶面板32 第二電激發光結構36 上玻璃322 液晶層324 下偏振片326 上基板331[Main component symbol description] Double-sided display panel 10 Backlight module 14 Light-emitting diode 141 Lower diffuser 143 Upper light-increasing sheet 145 Double-sided display panel 30 First electric light-emitting structure 34 Upper polarizing plate 321 Color filter 323 Glass 325 frame glue 327, 35 lower substrate 332 upper electrode 341, 365 orange light film layer 343 lower transfer layer 345, 362 red light film layer 363R thin film transistor 39 liquid crystal panel 12 organic electroluminescent panel 16 light guide plate 142 lower brightness enhancement sheet 144 upper diffusion sheet 146 liquid crystal panel 32 second electroluminescent structure 36 upper glass 322 liquid crystal layer 324 lower polarizing plate 326 upper substrate 331
雙面電激發光電板33 上傳輸層342、364 藍光膜層344、363B 下電極346、361 綠光膜層363G 發光單元40R、40G、40B 13Double-sided electric excitation photovoltaic plate 33 upper transmission layer 342, 364 blue film layer 344, 363B lower electrode 346, 361 green film layer 363G light-emitting unit 40R, 40G, 40B 13