200831991 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種平面顯示裝置。 【先前技術】 平面顯示裝置因其具有低輻射性、輕薄短小及耗電低 等特點，故於使用上日漸廣泛，且隨著相關技術之成熟及 創新’其種類亦日益繁多。 一 一種先前技術所揭示之平面顯示裝置結構如圖1所 示，該平面顯示裝置1包括相對設置之一彩色濾光片基板u 及一薄膜電晶體基板12、一夾設於該二基板n、12間之液 晶層13。 於該彩色濾光片基板11靠近該液晶層13侧表面設置有 :彩色濾光層151，該彩色濾光層151包括複數彩色濾光單 =152二如紅色濾光單元、綠色濾光單元及藍色濾光單元 等1該複數彩色濾光單元152陣列排佈，且每二相鄰彩色濾 光早兀152間設置有黑色遮光層153,藉由該黑 間隔相鄰之彩色濾光單元152。 田利用該平面顯不裝置1進行彩色顯示時，首先提供白 :依次穿過該薄膜電晶體基板12、該液晶層13及該彩色濾 邊^ :板11其中當光線穿過該彩色濾光層151時，該彩色 rt早二15^分別進行—過濾、動作，經每—彩色濾、光單元 + 、，先、、彔先或者監光中之任意一種單色光， ^ 、在每一衫色濾光單元152之強度，便可調配出 素上之光色變化，進而達到該平面顯示裝置1全彩色 200831991 顯示之目的。 該平面顯不裝置1實現全彩色顯示時，該黑色遮光層 15=間隔二相鄰之彩色濾光單元152，有效避免光線自二相 鄉和色濾光單元152之間穿過。但是因為該黑色遮光層153 具遮光性，其阻隔部份光線穿過該黑色遮光層153,該彩色 濾光層151亦同時對光線會有相當大比例過濾，導致光線在 二過正個衫色渡光片基板⑽，各單色光之強度僅為原白 (光強度之百刀之一十左右，所以該平面顯示裝置丨之整體亮 度亦對應大比例降低。另，顯示晝面之對比度取決於白晝 面下之顯示輝度與黑晝面下之顯示輝度比值，因為該里色 遮光層153阻隔光線穿過，所以該液晶顯示裝置1在白晝面 之顯示輝度不夠高，使得其對比度降低。 【發明内容】 有鑑於此，提供-種提高顯示晝面顯示輝度及對比度 之平面顯示裝置實為必需。 〔 -種平面顯示裝置，其包括—第—基板、—與該第一 基板相對設置之第二基板及一位於該第一基板與第二基板 間之像素區域，其中該像素區域包括第一顯示區域及第二 顯不區域，該第-顯示區域為設置有機電激發光單元之顯 :區域’該第二顯示區域為設置彩色遽光單元之液晶顯示 區域。 與先前技術相比’本發明之平面顯示裝置在設置一有 機電激發光單元之顯示區域，藉由設置有機電激發光單元 之第-顯示區域阻隔自背光源射向該第一顯示區域，避免 7 200831991 光線自二相鄰像素區域之第二顯示區域之間穿過，同時該 有機電激發光單元發光提高整個平面顯示裝置之顯示輝 度；另，因為該第一顯示區域之有機電激發光單元發光， 使得顯示晝面在白晝面與黑畫面下之顯示輝度比值擴大， 提高了顯示晝面之對比度，使該平面顯示裝置具有良好之 顯示效果。 【實施方式】 請參閱圖2,係本發明平面顯示裝置一種較佳實施方式 之結構示意圖。該平面顯示裝置200包括一背光源210及一 與該背光源210疊合設置之液晶面板220。其中該平面顯示 裝置200以白色光源作為該背光源210，如平行間隔設置之 複數冷陰極螢光燈管或者陣列設置之複數發光二極體等。 該液晶面板220包括一第一基板230、一與該第一基板 230相對設置之第二基板240及形成於該二基板230、240間 之像素區域250。該像素區域250包括相鄰之第一顯示區域 # 251及第二顯示區域252,該第一顯示區域251為有機電激發 光單元顯示區域，該第二顯示區域252為設置彩色濾光單元 2521之穿透式液晶顯示區域。 於該第二顯示區域252中，自該第二基板240至該第一 基板230包括依次層疊設置之一彩色濾光單元2521、一透明 導電層253、一液晶層254及一像素電極256。其中該彩色濾 光單元2521可以為紅色濾光單元、綠色濾光單元或者藍色 濾光單元。該彩色濾光單元2521係採用顏料分散法、染色 法、電著法或者印刷法製作。 8 200831991 於該第一顯示區域251中，自該第二基板240至該第一 基板230包括依次層疊設置之一有機電激發光單元2510、一 電介質層2511、一透明導電層253、一液晶層254及一薄膜 電晶體層255。該有機電激發光單元2510與該像素區域250 第二顯示區域252之彩色濾光單元2521相鄰設置。該電介質 層2511係一電絕緣層。該透明導電層253由透明材料製成， 如氧化銦錫（Indium Tin Oxide，ITO)或氧化銦鋅（Indium Zinc Oxide，IZ0)等0 請參閱圖3，係該有機電激發光單元2510之結構示意 圖。該有機電激發光單元2510包括一靠近該電介質層2511 之金屬陰極2512及一與該金屬陰極2512相對設置之透明陽 極2518，在該金屬陰極2512内側依次設置電子注入層2513 及電子傳輸層2514，該透明陽極2518之内側依次設置空穴 注入層2517及空穴傳輸層2516，一有機發光材料層2515設 置於該空穴傳輸層2516與電子傳輸層2514之間。其中該有 # 機發光材料層2515可以作為產生白光之光源。該電介質層 M 2511間隔該有機電激發光單元2510與該透明導電層253,使 該金屬陰極2512與該透明導電層253彼此絕緣，同時保證該 有機電激發光單元2510之金屬陰極2512平坦化，提高該有 機電激發光單元2510之壽命。 工作時，提供訊號驅動該背光源210產生白光並傳輸白 光至該液晶面板220。同時提供訊號使該像素區域250之像 素電極256與該透明導電層253之間形成電場，該電場調整 液晶分子旋轉以控制白光之透過率。當白光進入該液晶面 200831991 板220經過該彩色濾光單元2521時，該彩色濾光單元2521 對白光進行過濾，獲得紅色、綠色或者藍色之單色光，且 經過不同之彩色濾光單元2521獲得不同顏色之單色光；當 射向該有機電激發光單元2510時，藉由該金屬陰極2512之 阻隔作用遮擋該區域白光之透過。 同時於該第一顯示區域251中，提供訊號使該有機電激 發光單元2510之金屬陰極2512與該透明陽極2518之間形成 電位差，空穴注入層2517與電子注入層2513分別產生大量 之空穴及電子，其分別經過空穴傳輸層2516與電子傳輸層 2514之傳輸，於有機發光材料層2515中再結合 (Recombination)使有機發光材料釋放光子而發光。在每一 像素區域250内，該有機電激發光單元2510所發出白光與背 光源210產生之白光經過該彩色濾光單元2521後獲得之單 色光相互配合顯示一定灰階之畫面。 相較於先前技術，當該平面顯示裝置200顯示彩色晝面 / 時，在每二相鄰像素區域250内，利用該第一顯示區域251 ^ 之有機電激發光單元2510取代先前技術之黑色遮光層，阻 擋白光自二相鄰第二顯示區域252之間穿過。同時在每一像 素區域250内，該第一顯示區域251之有機電激發光單元 2510作為補充光源發出白光配合經過該第二顯示區域252 後產生之單色光顯示一定灰階之晝面，使得整個像素區域 250内之發光強度增加，故從整體上提高該液晶面板220之 顯示輝度。 另，因為在白畫面下，該有機電激發光單元2510同時 200831991 發光’使得整個顯示面板220產生晝面之顯示輝度提高，根 據對比度之疋義，因為白晝面下該液晶面板㈣之顯示輝度 ......旦面下顯不輝度之比值擴大，故該液晶面板220顯示書 面之對比度提高。 一 在該平㈣頁示褒置令，藉由該有機電激發光單元 仵:^先^技術之黑色遮光層，使得該平面顯示裝置200 保持^之顯示輝度及對比度，因此其顯示效果良好。 综上所述，本發明確已符合發明專利之要件 &出專利申請。惟’以上所述者僅為本發明之較佳實' :::之範圍並不以上述實施例為限’舉凡 y 之人士援依本發明之精神所作之等效修飾或 ^ : 蓋於以下申請專利範圍内。 白應涵 11 200831991 【圖式簡單說明】 圖1係一種先前技術平面顯示裝置之結構示意圖。 圖2係本發明平面顯示裝置之結構示意圖。 圖3係圖2所示平面顯示裝置之有機電激發光單元結構示 意圖。 【主要元件符號說明】200831991 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a flat display device. [Prior Art] Because of its low radiation, light weight, shortness, and low power consumption, flat display devices are becoming more and more widely used, and with the maturity and innovation of related technologies, their types are becoming more and more numerous. The structure of the flat display device disclosed in the prior art is as shown in FIG. 1. The flat display device 1 includes a color filter substrate u and a thin film transistor substrate 12 disposed opposite to each other. 12 liquid crystal layers 13. A color filter layer 151 is disposed on the surface of the color filter substrate 11 adjacent to the liquid crystal layer 13 . The color filter layer 151 includes a plurality of color filters 152 such as a red filter unit and a green filter unit. The blue filter unit or the like 1 is arranged in an array of the plurality of color filter units 152, and a black light shielding layer 153 is disposed between each of the two adjacent color filters 152, and the color filter unit 152 adjacent to the black interval is disposed. . When the color display is performed by the flat display device 1, the white is first provided: sequentially passes through the thin film transistor substrate 12, the liquid crystal layer 13, and the color filter layer: the board 11 wherein light passes through the color filter layer. At 151 o'clock, the color rt is carried out two times 15^ separately - filtering, action, through each of the color filter, light unit +, first, first, or light, any one of the monochromatic light, ^, in each shirt The intensity of the color filter unit 152 can be adjusted to change the color of the light on the element, thereby achieving the purpose of the full color display of the flat display device 1 200831991. When the flat display device 1 realizes full color display, the black light shielding layer 15=the two adjacent color filter units 152 are arranged to effectively prevent light from passing between the two-phase and color filter units 152. However, since the black light-shielding layer 153 is light-shielding, a part of the light passes through the black light-shielding layer 153, and the color filter layer 151 also filters a considerable proportion of the light, resulting in the light being in the second color. The light-transmissive substrate (10), the intensity of each monochromatic light is only the original white (about ten of the light intensity of the hundred knives, so the overall brightness of the flat display device 亦 also corresponds to a large proportion of reduction. In addition, the contrast of the display of the 昼 surface depends on The display luminance ratio under the surface of the white enamel surface is lower than the display luminance ratio under the black enamel surface. Since the chromatic light shielding layer 153 blocks the passage of light, the display luminance of the liquid crystal display device 1 on the white enamel surface is not high enough, so that the contrast is lowered. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a flat display device that improves the brightness and contrast of a display surface. [A type of flat display device includes a first substrate, a first surface opposite to the first substrate a second substrate and a pixel region between the first substrate and the second substrate, wherein the pixel region includes a first display area and a second display area, the first display area In order to set the display of the organic electroluminescent unit: the second display area is a liquid crystal display area in which the color light-receiving unit is disposed. Compared with the prior art, the flat display device of the present invention is provided with an organic electro-excitation unit. a region, by setting a first display region of the organic electroluminescent light unit to block from the backlight to the first display region, avoiding the passage of light from the second display region of the two adjacent pixel regions in 7200831991, and The electroluminescence excitation unit emits light to improve the display brightness of the entire flat display device; and, because the organic electroluminescence unit of the first display area emits light, the display luminance ratio of the display surface under the white and black images is enlarged, and the display is improved. The contrast of the facet is such that the flat display device has a good display effect. [Embodiment] Please refer to FIG. 2, which is a schematic structural view of a preferred embodiment of the flat display device of the present invention. The flat display device 200 includes a backlight 210. And a liquid crystal panel 220 disposed on the backlight 210. The flat display device 200 is white The light source is used as the backlight 210, such as a plurality of cold cathode fluorescent tubes arranged in parallel or a plurality of LEDs arranged in an array, etc. The liquid crystal panel 220 includes a first substrate 230 and a first substrate 230 opposite to the first substrate 230. a second substrate 240 and a pixel region 250 formed between the two substrates 230, 240. The pixel region 250 includes an adjacent first display region #251 and a second display region 252, the first display region 251 being organic An excitation light unit display area, wherein the second display area 252 is a transmissive liquid crystal display area in which the color filter unit 2521 is disposed. In the second display area 252, the second substrate 240 to the first substrate 230 are sequentially included. One color filter unit 2521, a transparent conductive layer 253, a liquid crystal layer 254, and a pixel electrode 256 are stacked. The color filter unit 2521 may be a red filter unit, a green filter unit, or a blue filter unit. The color filter unit 2521 is produced by a pigment dispersion method, a dyeing method, an electroforming method, or a printing method. 8 200831991 In the first display region 251, the second substrate 240 to the first substrate 230 includes a plurality of organic electroluminescent light units 2510, a dielectric layer 2511, a transparent conductive layer 253, and a liquid crystal layer. 254 and a thin film transistor layer 255. The organic electroluminescent light unit 2510 is disposed adjacent to the color filter unit 2521 of the second display region 252 of the pixel region 250. The dielectric layer 2511 is an electrically insulating layer. The transparent conductive layer 253 is made of a transparent material, such as Indium Tin Oxide (ITO) or Indium Zinc Oxide (IZ0), etc. See FIG. 3, which is the structure of the organic electroluminescent device 2510. schematic diagram. The organic electroluminescent device 2510 includes a metal cathode 2512 adjacent to the dielectric layer 2511 and a transparent anode 2518 disposed opposite the metal cathode 2512. An electron injection layer 2513 and an electron transport layer 2514 are sequentially disposed inside the metal cathode 2512. A hole injection layer 2517 and a hole transport layer 2516 are sequentially disposed inside the transparent anode 2518, and an organic light-emitting material layer 2515 is disposed between the hole transport layer 2516 and the electron transport layer 2514. The # luminescent material layer 2515 can be used as a light source for generating white light. The dielectric layer M 2511 is spaced apart from the transparent conductive layer 253 to insulate the metal cathode 2512 from the transparent conductive layer 253 while ensuring planarization of the metal cathode 2512 of the organic electroluminescent device 2510. The life of the organic electroluminescent unit 2510 is increased. In operation, a signal is provided to drive the backlight 210 to produce white light and to transmit white light to the liquid crystal panel 220. At the same time, a signal is provided to form an electric field between the pixel electrode 256 of the pixel region 250 and the transparent conductive layer 253, which adjusts the rotation of the liquid crystal molecules to control the transmittance of white light. When the white light enters the liquid crystal surface 200831991, the plate 220 passes through the color filter unit 2521. The color filter unit 2521 filters the white light to obtain monochromatic light of red, green or blue, and passes through different color filter units 2521. Monochromatic light of different colors is obtained; when it is directed to the organic electroluminescent light unit 2510, the blocking of the white light is blocked by the barrier action of the metal cathode 2512. At the same time, in the first display region 251, a signal is provided to form a potential difference between the metal cathode 2512 of the organic electroluminescent device 2510 and the transparent anode 2518, and the hole injection layer 2517 and the electron injection layer 2513 respectively generate a large number of holes. And electrons, which are respectively transported through the hole transport layer 2516 and the electron transport layer 2514, and recombined in the organic light-emitting material layer 2515 to cause the organic light-emitting material to emit photons to emit light. In each of the pixel regions 250, the white light emitted by the organic electroluminescent light unit 2510 and the single color light obtained by the white light generated by the backlight unit 210 passing through the color filter unit 2521 cooperate to display a certain gray scale image. Compared with the prior art, when the flat display device 200 displays the color pupil surface /, in each of the two adjacent pixel regions 250, the organic electroluminescent light unit 2510 using the first display region 251 ^ replaces the black shading of the prior art. The layer blocks white light from passing between two adjacent second display regions 252. At the same time, in each of the pixel regions 250, the organic electroluminescent light unit 2510 of the first display region 251 emits white light as a complementary light source, and the monochromatic light generated after passing through the second display region 252 displays a certain gray scale surface. The luminous intensity in the entire pixel region 250 is increased, so that the display luminance of the liquid crystal panel 220 is improved as a whole. In addition, because under the white screen, the organic electroluminescent light unit 2510 simultaneously emits light in 200831991, so that the display brightness of the entire display panel 220 is increased, according to the contrast, because the display brightness of the liquid crystal panel (4) under the white surface. The liquid crystal panel 220 displays a written contrast improvement as the ratio of the luminance is increased. In the flat (four) page, the display device 200 maintains the display brightness and contrast of the organic display device 200 by the black light-shielding layer of the organic light-emitting unit, so that the display effect is good. In summary, the present invention has indeed met the requirements of the invention patent & patent application. However, the above description is only preferred of the present invention. The scope of the invention is not limited to the above-described embodiments. The equivalent modifications made by the person in accordance with the spirit of the present invention or the following are included in the following: Within the scope of the patent application. Bai Yinghan 11 200831991 [Simplified description of the drawings] Fig. 1 is a schematic structural view of a prior art flat display device. 2 is a schematic structural view of a flat display device of the present invention. Fig. 3 is a view showing the structure of an organic electroluminescence unit of the flat display device shown in Fig. 2. [Main component symbol description]
平面顯示裝置 200 電子傳輸層 2514 背光源 210 有機發光材料層 2515 液晶面板 220 空穴傳輸層 2516 第一基板 230 空穴注入層 2517 第二基板 240 透明陽極 2518 像素區域 250 第二顯示區域 252 第一顯示區域 251 彩色濾光單元 2521 有機電激發光單元 2510 透明導電層 253 電介質層 2511 液晶層 254 金屬陰極 2512 薄膜電晶體層 255 電子注入層 2513 像素電極 256 12Flat display device 200 electron transport layer 2514 backlight 210 organic light emitting material layer 2515 liquid crystal panel 220 hole transport layer 2516 first substrate 230 hole injection layer 2517 second substrate 240 transparent anode 2518 pixel region 250 second display region 252 first Display area 251 color filter unit 2521 organic electroluminescence unit 2510 transparent conductive layer 253 dielectric layer 2511 liquid crystal layer 254 metal cathode 2512 thin film transistor layer 255 electron injection layer 2513 pixel electrode 256 12