552439 _案號91121018_年月曰 修正_ 五、發明說明（1) 【技術領域】 本發明係有關一種具雙面發光導光板之液晶顯示器， 尤指一種能使單一導光板產生兩個出光面，而可提供二個 液晶顯示模組所需光線之液晶顯示器。 【先前之技術】 如第4圖所示，為習用之一種雙面液晶顯示器之結構 ，其主要係設有二薄膜形態之冷光發光元件（E L ) 7 1 、7 2 ，以分別提供*一組液晶f;頃不核組7 3 、7 4所需之 光線，如此，即可使手機或其它使用此一技術之電子商品 的蓋板於内、外面均具有一液晶顯示幕。 上述之結構，可供於手機或其它電子商品之蓋板的内 、外面於相同的位置形成兩個一樣面積大小之液晶顯示幕 ，但是，這樣的結構要使用兩個與液晶顯示幕相同大小之 冷光發光元件7 1 、7 2 ，如此一來，會使雙面液晶顯示 器的造價變得相當高昂，而且，冷光發光元件7 1 、7 2 會產生振動及噪音的問題。 如果為了節省成本，而改用兩組導光板來取代兩個冷 光發光元件，雖然可以降低一些成本，但是卻會使整個雙 面液晶顯示器之厚度增加，而不利於配置在手機或其它電 子商品之蓋板上，再者，不論是使用二個冷光發光元件7 1 、7 2或二組導光板，都會有較耗電的問題。 再請參閱第5圖，其係另一種雙面液晶顯示器之結構 ，其係於一導光板8 1之前、後段的不同面分別設置一反 射板8 2、8 3 ，且於導光板8 1相對於各反射板8 2、 8 3之一面設置一液晶顯示模組8 4、8 5 ，使兩側之光552439 _Case No. 9112018_ Revised Year of the Month _ V. Description of the Invention (1) [Technical Field] The present invention relates to a liquid crystal display with a double-sided light-emitting light guide plate, and particularly to a light guide plate capable of generating two light emitting surfaces. , And can provide two liquid crystal display modules with the light required by the liquid crystal display. [Previous technology] As shown in Figure 4, it is a conventional double-sided liquid crystal display structure, which is mainly provided with two thin-film cold-light emitting elements (EL) 7 1 and 7 2 to provide a group of * The liquid crystal f; does not audit the light required by the groups 7 3 and 7 4. In this way, the cover of the mobile phone or other electronic products using this technology has a liquid crystal display screen inside and outside. The above structure can be used to form two liquid crystal display screens of the same area inside and outside the cover of a mobile phone or other electronic goods at the same position. However, such a structure requires two liquid crystal display screens of the same size as the liquid crystal display screen. The cold light emitting elements 7 1 and 7 2 will make the cost of the double-sided liquid crystal display quite high, and the cold light emitting elements 7 1 and 7 2 will cause vibration and noise problems. If in order to save costs, two sets of light guide plates are used instead of two cold light emitting elements. Although it can reduce some costs, it will increase the thickness of the entire double-sided liquid crystal display, which is not conducive to deployment in mobile phones or other electronic goods. On the cover plate, no matter whether two cold light emitting elements 7 1, 7 2 or two sets of light guide plates are used, there will be a problem of power consumption. Please refer to FIG. 5 again, which is another structure of a double-sided liquid crystal display, which is provided with a reflecting plate 8 2, 8 3 on different sides of the front and rear sections of a light guide plate 81, and is opposite to the light guide plate 81. A liquid crystal display module 8 4, 8 5 is arranged on one side of each reflection plate 8 2, 8 3, so that the light on both sides
552439 案號91121018 年月日 修正 五、發明說明（2) 源8 6投射進入導光板8 1中之光線，在經過各反射板8 2 、8 3之反射後，分別投射至兩個液晶顯示模組8 4、 8 5 ，以提供兩個液晶顯示模組8 4、8 5所需之光線。 上述之結構，只使用一個導光板，雖然可以降低製造 成本，但是，於導光板8 1前、後段的不同面分別設置反 射板8 2、8 3 ，以提供光線給二個液晶顯示模組8 4、 8 5 ，所以，這兩個液晶顯示模組8 4 、8 5的位置是相 互錯開（即不相互重豐）的’無法排列在同^一個位置，因 此，此種結構之雙面液晶顯示器的體積會變得比較大，而 不利配置於小體積的手機上；如果要縮小整體的體積，則 相對地必需縮小二個液晶顯示模組8 4、8 5之面積，而 會造成顯示之内容行數較少等問題。 綜上，目前常見的兩種雙面液晶顯示器各有缺弊之處 ，因而有必要加以改良。 【目的及功效】 本發明之主要目的，在於解決上述的問題而提供一種 具雙面發光導光板之液晶顯示器，由於導光板中傾斜設置 有多數個分離部，各個分離部傾斜之方向係由入光面與其 中一出光面之相鄰邊向另一出光面遠離入光面之一邊延伸 ，而各分離部分別具有二個分離面，且各分離部中鄰近該 入光面之分離面係呈朝入光面凸出之形態，俾使由入光面 進入之光線能經該分離面之反射與折射後分別朝導光板的 兩個出光面射出，以分別投射至兩個液晶顯示模組，達到 由單一導光板提供二個液晶顯示模組所需光線之功效。 本發明之次一目的，係在於該二液晶顯示模組與該導552439 Case No. 91112018 Rev. 5th, Description of the Invention (2) The light projected by the source 8 6 into the light guide plate 81 is reflected by the reflection plates 8 2 and 8 3 and then projected to the two liquid crystal display modes. Group 8 4 and 8 5 to provide the required light for the two LCD modules 8 4 and 8 5. In the above structure, only one light guide plate is used. Although the manufacturing cost can be reduced, reflective plates 8 2 and 8 3 are respectively provided on different sides of the front and rear sections of the light guide plate 81 to provide light to the two liquid crystal display modules 8. 4, 8 5. Therefore, the positions of the two liquid crystal display modules 8 4 and 8 5 are staggered (that is, they do not overlap each other). They cannot be arranged in the same position. Therefore, the double-sided liquid crystal of this structure The size of the display will become larger, which is disadvantageous for disposing on a small-sized mobile phone. If the overall volume is to be reduced, the area of the two liquid crystal display modules 8 4 and 8 5 must be relatively reduced, which will cause the display Issues such as fewer content lines. In summary, the two common double-sided liquid crystal displays currently have their own disadvantages, so it is necessary to improve them. [Objective and Effect] The main object of the present invention is to solve the above-mentioned problems and provide a liquid crystal display with a double-sided light-emitting light guide plate. Since the light guide plate is inclinedly provided with a plurality of separation portions, the direction in which each separation portion is inclined is determined by The adjacent sides of the light surface and one of the light-emitting surfaces extend toward one side of the other light-emitting surface away from the light-incident surface, and each separation portion has two separation surfaces, and the separation surface adjacent to the light-incident surface in each separation portion presents The shape protruding toward the light-receiving surface enables the light entering from the light-receiving surface to be reflected and refracted by the separation surface to be emitted toward the two light-emitting surfaces of the light guide plate respectively to be projected to the two liquid crystal display modules. It achieves the effect of providing the light required by two liquid crystal display modules from a single light guide plate. A second object of the present invention lies in the two liquid crystal display modules and the guide.
552439 _案號91121018_年月日 修正 _ 五、發明說明（3) 光板之二出光面間分別設有一擴散膜，俾使由出光面射出 的光線能經由擴散膜散射，而均勻地投射至二液晶顯示模 組，而可避免產生網點。 【技術内容】 本發明係提供一種具雙面發光導光板之液晶顯示器， 其包括： 一個以上的光源； 一個導光板，該導光板鄰近該光源的一面定義為一入 光面，而該導光板相鄰於該入光面的兩個相對面分別定義 為一出光面，且該導光板中傾斜分佈有多數個分離部，各 該分離部傾斜之方向係由入光面與其中一出光面之一相鄰 邊向另一出光面遠離入光面之一邊延伸，而各分離部分別 具有二個分離面，且各分離部鄰近該入光面之分離面係呈 朝該入光面凸出之形態； 一液晶顯不板組’該二液晶顯不模組係分別設於該導 光板之二個出光面。 本發明之上述及其他目的與優點，不難從下述所選用 實施例之詳細說明與附圖中，獲得深入了解。 當然，本發明在某些另件上，或另件之安排上容許有 所不同，但所選用之實施例，則於本說明書中，予以詳細 說明，並於附圖中展示其構造。 【實施例之詳細說明】 請參閱第1圖至第3圖，圖中所示者為本發明所選用 之實施例結構，此僅供說明之用，在專利申請上並不受此 種結構之限制。552439 _Case No. 9121018_ Year, Month, Day and Date_ V. Description of the invention (3) A light diffusion film is provided between the light emitting surfaces of the two light plates, so that the light emitted from the light emitting surface can be scattered through the diffusion film and projected uniformly to the two. LCD display module, which can avoid dots. [Technical content] The present invention provides a liquid crystal display with a double-sided light-emitting light guide plate, which includes: more than one light source; a light guide plate, a side of the light guide plate adjacent to the light source is defined as a light incident surface, and the light guide plate Two opposite surfaces adjacent to the light incident surface are respectively defined as a light emitting surface, and the light guide plate is obliquely distributed with a plurality of separation portions. The direction of each of the separation portions is inclined by the light incident surface and one of the light emitting surfaces. An adjacent side extends toward one side of the other light exit surface away from the light entrance surface, and each separation portion has two separation surfaces, and the separation surface adjacent to the light entrance surface of each separation portion is convex toward the light entrance surface. Form; a liquid crystal display panel group. The two liquid crystal display modules are respectively disposed on two light emitting surfaces of the light guide plate. The above and other objects and advantages of the present invention can be easily understood from the detailed description and accompanying drawings of the selected embodiments below. Of course, the present invention allows some differences in the arrangement or arrangement of other parts, but the selected embodiment is described in detail in this specification and its structure is shown in the drawings. [Detailed description of the embodiment] Please refer to FIG. 1 to FIG. 3, which show the structure of the embodiment of the present invention, which is used for illustration only, and is not subject to such structure in patent applications. limit.
第6頁 552439 修正 案號 91121018 五、發明說明（4) 本實施例之具雙面發光 數個光源1 0。 一個導光板1 ，該導光 定義為一入光面1 1 ，而該 的兩個相對面分別定義為一 面1 3 ’且該導光板1中傾 各該分離部1 4傾斜之方向 1 3之一相鄰邊1 1 1向第 之一邊1 2 1延伸，請參考 有二個分離面141、14 光面1 1之分離面1 4 1係 ，於本實例中，其係呈弧狀 二組液晶顯示模組2 ， 設於該導光板1之第一、二 、二出光面12、13與各 一擴散膜1 5。 請參閱第3圖，當光源 導光板1 0後，由於導光板 部1 4 ，而各分離部1 4分 42 ，且鄰近入光面1 1之 ，因此，當光線L投射到分 4 1係呈凸出之弧狀，因此 2之反射光L1 ，與一朝第 當然’折射光L 2在分離部 導光板之液晶顯示器，其包括 板1鄰近各該光源1 0的一面 導光板1相鄰於該入光面1 1 第一出光面1 2與一第二出光 斜分佈有多數個分離部1 4 ， 係由入光面11與第二出光面 一出光面12遠離入光面11 第3圖，各分離部1 4分別具 2 ，且各分離部1 4鄰近該入 呈朝該入光面1 1凸出之形態 之凸出形態。 該二組液晶顯不模組2係分別 出光面12 、13 ，且該第一 組液晶顯示模組2間分別設有 1 0的光線由入光面投射進入 1 0中傾斜分佈有多數個分離 別具有二個分離面1 4 1 、1 分離面1 4 1係呈凸出之弧狀 離面1 4 1時，由於分離面1 ，會產生一朝向第一出光面1 二出光面1 3之折射光L 2 ， 1 4的二分離面1 4 1 、1 4Page 6 552439 Amendment No. 91121018 V. Description of the Invention (4) This embodiment has two light sources with double-sided light emission 10. A light guide plate 1, the light guide is defined as a light incident surface 1 1, and the two opposite surfaces are respectively defined as a surface 1 3 ′, and the light guide plate 1 is tilted in the direction 1 3 of the separation portion 14. An adjacent edge 1 1 1 extends to the first edge 1 2 1. Please refer to the separation surface 1 4 1 with two separation surfaces 141 and 14 smooth surface 1 1. In this example, they are two groups of arcs. The liquid crystal display module 2 is disposed on the first, second, and second light emitting surfaces 12 and 13 of the light guide plate 1 and each of the diffusion films 15. Referring to FIG. 3, after the light guide plate 10 of the light source, since the light guide plate portion 14 is 4 and each separation portion 14 points 42, and is adjacent to the light incident surface 1 1 1, when the light L is projected to the point 4 1 system It has a convex arc shape, so the reflected light L1 of 2 is adjacent to the liquid crystal display of refracted light L2 in the light guide plate of the separation section, which includes the plate 1 adjacent to the light guide plate 1 on each side of the light source 10 A plurality of separation portions 1 4 are obliquely distributed on the light incident surface 1 1, the first light emitting surface 12, and a second light emitting surface. The light incident surface 11 and the second light emitting surface 1 and the light emitting surface 12 are far away from the light incident surface 11. In the figure, each of the separation portions 14 has 2 respectively, and each of the separation portions 14 is adjacent to the entrance and has a convex shape protruding toward the light incident surface 11. The two sets of liquid crystal display modules 2 have light emitting surfaces 12 and 13, respectively, and the first group of liquid crystal display modules 2 respectively have 10 light rays projected into the 10 from the light incident surface, and there are a plurality of oblique distributions. Do not have two separation surfaces 1 4 1, 1 separation surface 1 4 1 is a convex arc-shaped separation surface 1 4 1, due to the separation surface 1, one will be directed toward the first light emitting surface 1 and the second light emitting surface 1 3. Two separated surfaces of refracted light L 2, 1 4 1 4 1, 1 4
第7頁 552439 _案號 91121018_年月日__ 五、發明說明（5) . 2間投射仍會不斷產生反射光與折射光，而這些反射光與 折射光最終都會朝向第一出光面12或第二出光面13射 出。 當光線朝向第一出光面12或第二出光面13射出時 ，由於該第一、二出光面1 2 、1 3與各組液晶顯示模組 2間分別設有一擴散膜1 5 ，因此，由各個分離部1 4之 二分離面1 4 1 、1 4 2所反射或折射出之光線會經由擴 散膜1 5而擴散投射向各組液晶顯示模組2 ，使各組液晶 顯示模組2都能獲得均勻的背光。 本發明之具有雙面發光導光板之液晶顯示器，能使導 光板1的第一、二出光面12 、1 3全面地反射光線，因 此，將本發明運用於手機或其它電子商品時，可於蓋板的 内、外面的相同的位置形成兩個一樣面積大小之液晶顯示 幕，而且本發明之結構中僅使用單一個導光板，因此，能 有效降低成本，且不會造成整個液晶顯示器厚度的增加。 綜上所述，本發明藉由導光板1中傾斜設置的多數個 分離部1 4 ，使各分離部1 4的二個分離面1 4 1 、1 4 2能將由入光面進1 1入之光線反射與折射後分別朝第一 、二出光面1 2 、1 3射出，以分別投射至兩個液晶顯示 模組2 ，達到由單一導光板提供二個液晶顯示模組所需光 線之功效；再者，該二液晶顯示模組2與該導光板1之第 一、二出光面1 2 、1 3間分別設有一擴散膜1 5 ，俾使 由第一 、二出光面1 2 、1 3射出的光線能經由擴散膜 1 5散射，而均勻地投射至二液晶顯示模組2 ，以避免產 生網點。Page 7 552439 _Case No. 9121018_Year Month__ V. Description of the invention (5). The two projections will still continue to produce reflected light and refracted light, and these reflected light and refracted light will eventually face the first light exit surface 12 Or the second light emitting surface 13 is emitted. When light is emitted toward the first light emitting surface 12 or the second light emitting surface 13, since the first and second light emitting surfaces 1 2 and 13 are respectively provided with a diffusion film 1 5 between each group of liquid crystal display modules 2, The light reflected or refracted by the separation surfaces 1 4 1 and 1 4 2 of each separation section 14 will be diffused and projected to each group of liquid crystal display modules 2 through the diffusion film 15, so that each group of liquid crystal display modules 2 will Can obtain a uniform backlight. The liquid crystal display having the double-sided light-emitting light guide plate of the present invention can fully reflect the light of the first, second light emitting surfaces 12 and 1 3 of the light guide plate 1. Therefore, when the present invention is applied to a mobile phone or other electronic products, Two liquid crystal display screens of the same area are formed at the same position on the inside and the outside of the cover plate, and only a single light guide plate is used in the structure of the present invention. Therefore, the cost can be effectively reduced without causing the thickness of the entire liquid crystal display. increase. In summary, the present invention enables the two separation surfaces 1 4 1 and 1 4 2 of each separation portion 14 to enter the light separation surface 1 1 through the plurality of separation portions 1 4 arranged obliquely in the light guide plate 1. After the light is reflected and refracted, it is emitted toward the first and second light emitting surfaces 1 2 and 1 3 respectively to be projected to the two liquid crystal display modules 2 to achieve the effect of providing the light required by the two liquid crystal display modules by a single light guide plate. Furthermore, a diffusion film 1 5 is respectively provided between the two liquid crystal display modules 2 and the first and second light emitting surfaces 1 2 and 13 of the light guide plate 1 so that the first and second light emitting surfaces 1 2 and 1 The light emitted by 3 can be scattered by the diffusion film 15 and uniformly projected to the two liquid crystal display modules 2 to avoid the generation of dots.
552439 案號 91121018 年 月 修正 五、發明說明（6) 當然，本發明仍存在許多例子，其間僅細節上之變化 。例如，將各分離部的兩個分離面都製成朝入光面凸出之 弧狀；或者將鄰近入光面的分離面設計成錐形或梯形等形 態，都可產生與前述實施例類似的效用，故而，諸如此類 的等效置換仍應隸屬本發明之範疇。 由以上詳細說明，可使熟知本項技藝者明瞭本發明的 確可達成前述目的，實已符合專利法之規定，爰提出專利 申請0552439 Case No. 91121018 Amendment V. Description of the Invention (6) Of course, there are still many examples of the present invention, and only the details have changed in the meantime. For example, the two separation surfaces of each separation part are made into an arc shape protruding toward the light-receiving surface; or the separation surface adjacent to the light-receiving surface is designed into a cone or trapezoidal shape, etc., which can be similar to the previous embodiment. Therefore, equivalent replacements such as these should still belong to the scope of the present invention. From the above detailed description, those skilled in the art can understand that the present invention can indeed achieve the aforementioned purpose, and it has already complied with the provisions of the Patent Law, and filed a patent application.
第9頁 552439 案號 91121018 年 月 修正 圖式簡早說明 第1圖係本發明之結構示意圖 第2圖係本發明之導光板上分佈多數個分離部之示意圖 第3圖係本發明導光板中分離部之結構放大圖暨光線反射 、折射與擴散之示意圖 第4圖係習用之一種雙面液晶顯示器之結構 第5圖係習用之另一種雙面液晶顯示器之結構 【圖號說明】 (習用部分）冷光發光元件7 1 、7 2 導光板8 1 液晶顯示模組8 4、8 5 (本發明部分） 光源1 0 入光面1 1第二出光面1 3 分離面1 4 1 、1 4 2 液晶顯不板組2 液晶顯不核組7 反射板8 2、8 光源8 6 導光板1 第一出光面 分離部1 4 擴散膜1 5 2 7 4Page 9 552439 Correction of the case No. 9112018 Brief description of the early diagram 1 The diagram is a schematic diagram of the structure of the present invention The second diagram is a diagram of a plurality of separated parts distributed on the light guide plate of the present invention The third diagram is in the light guide plate of the present invention The enlarged view of the structure of the separation section and the schematic diagram of light reflection, refraction and diffusion. Figure 4 shows the structure of a conventional double-sided liquid crystal display. Figure 5 shows the structure of another conventional double-sided liquid crystal display. [Illustration of drawing number] (conventional part) ) Cold light emitting elements 7 1, 7 2 Light guide plate 8 1 Liquid crystal display module 8 4, 8 5 (part of the present invention) Light source 1 0 Light incident surface 1 1 Second light emitting surface 1 3 Separating surface 1 4 1, 1 4 2 LCD display panel group 2 LCD display panel group 7 Reflective plate 8 2, 8 Light source 8 6 Light guide plate 1 First light emitting surface separation section 1 4 Diffusion film 1 5 2 7 4
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