1352239 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種液晶顯示裝置，尤指一種可雙面顯示 之液晶顯示裝置，可改善液晶顯示面板與光源模組對位不 易所造成的亮度不均問題。1352239 IX. Description of the Invention: [Technical Field] The present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device capable of double-sided display, which can improve the brightness caused by the misalignment between the liquid crystal display panel and the light source module. Uneven problem.
【先前技術】 手機產品在近年來成長的非常的迅速，作為顯示裝置的 平面顯示器更顯的重要，為符合人類的使用習慣，和產品 求新求變的特性，具有雙面顯示影像功能之顯示裝置已成 為一種趨勢。 請參考第1圖。第1圖係為習知一種雙面液晶顯示器 10之示意圖。液晶顯示器10包括一光源12、一導光板16、 一雙面液晶顯示面板20，包括一第一陣列基板18、一液晶 層22以及一第二陣列基板24。藉由一稜鏡片14引導光源 12的光線至導光板16，導光板16反射光線經由基板18、 液晶層22到基板24上，導光板16為一斜角度之導光板。 光源12、稜鏡片14及導光板16組成光源模組，提供一面 光源，第二陣列基板24上的畫素具有半穿透反射顯示區 27及穿透顯示區28，光線藉由半穿透反射顯示區27的反 ' 射在雙面液晶顯示器10的第一面顯示影像，並穿透半穿透 切2239 ^ 穿透率，調整該穿透顯示區中鄰近該半穿 ^該穿透_中之複數個畫素的 區域27與穿透顯示區域以 所= = 變成漸變式的穿透率變化。如第… 圖中，半穿透反射顯示區域27較 有第-穿透率，而愈靠近穿透顯示區域Μ時穿 一空4的增加’―直增加到穿透顯示區域28後變成了第 匈透2止。第4圖中所示的調整後穿透率變化，可使 板對位有偏差時，具有掩飾的效果，使顯示 旦面不會出現明顯的亮度差異。 社構㈣輯27歧料輯28的穿透率與面板 1有關。請參考第5圖及第6圖。第5圖係為一書辛第 二車^1基板24的示意圖。陣列基板24具有反射區r及穿 :，先線打到反射區尺時會被反射，打到穿透區丁時 為穿透。反射區R盘穿读恧t '、芽远&丁面積大小的比例影響了一個 穿透率。如果穿透區τ所占面積比例愈大則該畫 ，、的穿透率愈高。因此，藉由調整反射區R及穿透區丁的 面積就可改變面板上一畫素的穿透率。另一改變書素穿透 1的方法如第6圖所示，係於陣縣板24加上—金屬薄膜 出’金屬薄膜115本身就具有讓光線部分穿透部分反射的 效果’而反射及穿透的比例可藉由控制該金屬薄膜的厚度 1-352239 來控制，已達到本發明之目的。[Prior Art] Mobile phone products have grown very rapidly in recent years, and are more important as flat-panel displays for display devices. In order to meet human use habits and product innovation, display with double-sided display image function Devices have become a trend. Please refer to Figure 1. Figure 1 is a schematic view of a conventional double-sided liquid crystal display 10. The liquid crystal display 10 includes a light source 12, a light guide plate 16, and a double-sided liquid crystal display panel 20, including a first array substrate 18, a liquid crystal layer 22, and a second array substrate 24. The light from the light source 12 is guided by a cymbal 14 to the light guide plate 16. The light guide plate 16 reflects the light through the substrate 18 and the liquid crystal layer 22 to the substrate 24. The light guide plate 16 is an oblique angle light guide plate. The light source 12, the cymbal 14 and the light guide plate 16 form a light source module, and provide a light source. The pixels on the second array substrate 24 have a semi-transparent reflective display area 27 and a transmissive display area 28, and the light is reflected by the semi-transparent reflection. The reverse of the display area 27 displays an image on the first side of the double-sided liquid crystal display 10, and penetrates the transmissive cut through a transmissive rate of 2239^, adjusting the penetration display area adjacent to the half-through The region 27 of the plurality of pixels and the penetration display region change with the transmittance of == becoming a gradual change. As shown in the figure, the semi-transparent reflection display area 27 has a first-permeability ratio, and the closer to the penetration display area, the increase in the wear-through space 4 is increased to the penetration display area 28 and becomes the second Hungary. Pass through 2. The adjusted transmittance change shown in Fig. 4 can have a masking effect when the alignment of the board is deviated, so that the display surface does not show a significant difference in brightness. The penetration rate of the social (4) series 27 distraction series 28 is related to the panel 1. Please refer to Figure 5 and Figure 6. Fig. 5 is a schematic view of a substrate 24 of a book. The array substrate 24 has a reflection area r and a wear: when the first line hits the reflection area, it is reflected, and when it hits the penetration area, it penetrates. The ratio of the size of the R disk in the reflection zone to the 恧t', bud far & ding area affects a penetration rate. If the proportion of the area occupied by the penetration zone τ is larger, the penetration rate of the painting is higher. Therefore, the transmittance of a pixel on the panel can be changed by adjusting the area of the reflection area R and the penetration area. Another method for changing the pixel penetration 1 is as shown in Fig. 6, which is attached to the array plate 24 of the array. The metal film 115 itself has the effect of allowing the light to partially penetrate the portion of the reflection and is reflected and worn. The ratio of penetration can be controlled by controlling the thickness of the metal film 1-352239, which has achieved the object of the present invention.
請參考第7圖。第7圖係為本發明之一種雙面液晶顯 示器30。雙面液晶顯示器30包含了三個區域，分別是半 穿透反射顯示區域27,穿透顯示區域28以及穿透率漸變 顯示區域29。半穿透反射顯示區域27由複數個具有一第 一穿透率之畫素組成；穿透顯示區域28由複數個具有一第 二穿透率之畫素組成；而穿透率漸變顯示區域29,如第7 圖所示位於該半穿透反射顯示區域與該穿透顯示區域之 間，由複數個具有不同穿透率之晝素組成。穿透率漸變顯 示區域29中，晝素的穿透率分佈係為漸變式分佈，愈靠近 半穿透反射顯示區域27的畫素具有愈接近第一穿透率之 穿透率，愈靠近穿透顯示區域29的畫素具有愈接近第二穿 透率之穿透率，也就是由靠近半穿透反射顯示區域朝穿透 顯示區域呈遞增分布。因此，在此實施例中第一穿透率比 較低，而第二穿透率比較高，在穿透率漸變顯示區域29 中，靠近半穿透反射顯示區域27的畫素穿透率較低，愈向 外圍方向（穿透顯示區域28)靠近的晝素穿透率漸漸變高， 穿透率漸變區域29中這複數個晝素的穿透率變化，可消除 光源模組與面板對位不易所產生亮紋或暗紋的問題。 如第5圖中所提到，一晝素可包含一反射區R及穿透 區T。反射區R與穿透區T面積大小的比例影響了 一個晝 ⑧ 1352239 素的穿透率。如果穿透區τ所占面積比例愈大，則該畫素 的穿透率愈高。因此，藉由調整液晶顯示器畫素反射區R 及穿透區Τ的面積就可改變面板上一晝素的穿透率。或 者，於基板陣列加上一金屬薄膜，藉由控制該金屬薄膜的 厚度控制一畫素反射及穿過的比例。 在雙面液晶顯示器中，液晶顯示面板兩側的顯示區域 大小不同時’光源核組與液晶顯示面板間必須特殊設計來 解決亮度不均的問通。但如果液晶顯示面板與光源模組沒 有精準的對位’半穿透反射顯示區的邊緣便可見到較亮或 較暗的線條。然而，在生產製造的過程中，欲讓光源模組 與液晶顯不面板間準確的對位卻不是一件容易的事β因 此’先前技術中會產生光源模組與液晶顯示面板間對位不 易的問題。本發明之方法依據半穿透反射顯示區域的第一 穿透率以及穿透顯示區域的第二穿透率，調整該穿透區中 鄰近該半穿透反射顯不區域之複數個晝素及該半穿透反射 顯示區域鄰近該穿透顯示區域中之複數個晝素的穿透率， 來改善對位不易的情況。因此’本發明能改善雙面液晶顯 示裝置中光源模組與液晶顯示面板間對位不易的問題，以 及改善面板的亮度不均勻現象。 以上所述僅為本發明之較佳實施例，凡依本發明申請專利範 *所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。 ⑧ 1352239 【圖式簡單說明】 ‘ 第1圖係為習知一種雙面顯示之影像平面顯示器之示音圖。 第2圖為光源模組光線亮度與液晶顯示面板穿透率之理想叙合圖。 Q為光源模组光線党度與液晶顯示面板穿透率之實際組合圖。 帛4圖為本發明第—實施例中改善面板與光源模崎位不易的方 法中’調整穿透率變化的說明圖。 第5圖係為一畫素下基板陣列的示意圖。 4§ 第6圖係為另一晝素下基板陣列的示意圖。 第7圖係為本發明之一種液晶顯示器。 【主要元件符號說明】 12 光源 16 導光板 22 液晶層 18 第一陣列基板 24 第二陣列基板 14 稜鏡片 27 半穿透反射顯示區域 28 穿透顯示區域 10 雙面液晶顯示器 20 雙面液晶顯示面板 111 亮帶 113 暗帶 115 金屬薄膜Please refer to Figure 7. Figure 7 is a double-sided liquid crystal display 30 of the present invention. The double-sided liquid crystal display 30 includes three regions, a transflective display region 27, a transmissive display region 28, and a transmittance gradient display region 29. The transflective display area 27 is composed of a plurality of pixels having a first transmittance; the transmissive display area 28 is composed of a plurality of pixels having a second transmittance; and the transmittance gradient display area 29 As shown in Fig. 7, between the transflective display area and the transmissive display area, a plurality of elements having different transmittances are composed. In the transmittance gradient display region 29, the transmittance distribution of the halogen is a gradual distribution, and the pixel closer to the semi-transparent reflection display region 27 has a transmittance closer to the first transmittance, and the closer to wear The pixels of the transmissive display region 29 have a transmittance closer to the second transmittance, that is, from the near-transparent reflective display region toward the penetrating display region. Therefore, in this embodiment, the first transmittance is relatively low, and the second transmittance is relatively high, and in the transmittance gradient display region 29, the pixel penetration rate near the semi-transparent reflection display region 27 is low. The transmittance of the pixel near the peripheral direction (penetrating the display area 28) is gradually higher, and the transmittance of the plurality of pixels in the gradient gradation area 29 is changed, thereby eliminating the alignment of the light source module and the panel. It is not easy to produce problems with bright lines or dark lines. As mentioned in Fig. 5, a halogen can include a reflection zone R and a penetration zone T. The ratio of the area of the reflection zone R to the area of the penetration zone T affects the penetration of a 昼 8 1352239 element. If the proportion of the area occupied by the penetration zone τ is larger, the penetration rate of the pixel is higher. Therefore, the transmittance of a pixel on the panel can be changed by adjusting the area of the pixel reflection region R and the penetration region 液晶 of the liquid crystal display. Alternatively, a metal film is applied to the substrate array to control the ratio of reflection and passing of a pixel by controlling the thickness of the metal film. In the double-sided liquid crystal display, when the display areas on both sides of the liquid crystal display panel are different in size, the light source core group and the liquid crystal display panel must be specially designed to solve the problem of uneven brightness. However, if the liquid crystal display panel and the light source module do not have a precise alignment, the edges of the semi-transparent reflective display area can be seen as brighter or darker lines. However, in the process of manufacturing, it is not an easy task to make the accurate alignment between the light source module and the liquid crystal display panel. Therefore, it is difficult to match the light source module and the liquid crystal display panel in the prior art. The problem. The method of the present invention adjusts a plurality of pixels adjacent to the semi-transparent reflection display region in the penetration region according to the first transmittance of the semi-transparent reflection display region and the second transmittance of the penetration display region The transflective display area is adjacent to the transmittance of the plurality of pixels in the transmissive display area to improve the alignment. Therefore, the present invention can improve the problem that the alignment between the light source module and the liquid crystal display panel in the double-sided liquid crystal display device is not easy, and improve the brightness unevenness of the panel. The above is only the preferred embodiment of the present invention, and all changes and modifications made by the patent application of the present invention are intended to be within the scope of the present invention. 8 1352239 [Simple description of the diagram] ‘The first diagram is a sound diagram of a conventional image display with double-sided display. Figure 2 is an ideal combination of the light intensity of the light source module and the transmittance of the liquid crystal display panel. Q is the actual combination of the light component of the light source module and the transmittance of the liquid crystal display panel. Fig. 4 is an explanatory view showing the change of the transmittance in the method of improving the panel and the light source mode in the first embodiment of the present invention. Figure 5 is a schematic diagram of a pixel array of a lower substrate. 4 § Figure 6 is a schematic diagram of another elementary substrate array. Figure 7 is a liquid crystal display of the present invention. [Main component symbol description] 12 Light source 16 Light guide plate 22 Liquid crystal layer 18 First array substrate 24 Second array substrate 14 Septum 27 Transflective display area 28 Penetration display area 10 Double-sided liquid crystal display 20 Double-sided liquid crystal display panel 111 bright belt 113 dark belt 115 metal film