TWI502251B - Display device - Google Patents
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- TWI502251B TWI502251B TW102135864A TW102135864A TWI502251B TW I502251 B TWI502251 B TW I502251B TW 102135864 A TW102135864 A TW 102135864A TW 102135864 A TW102135864 A TW 102135864A TW I502251 B TWI502251 B TW I502251B
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Description
本揭露是有關於一種顯示裝置。The present disclosure relates to a display device.
在先前技術中，當使用兩片重疊的顯示面板來輸出影像時，由於兩片顯示面板的畫素(Pixel)結構太過於規律化，因此常常會造成干涉疊紋(Moiré Pattern)的現象，這種干涉疊紋的現象將會嚴重影響顯示的品質。In the prior art, when two overlapping display panels are used to output an image, since the Pixel structure of the two display panels is too regular, the phenomenon of interference moiré pattern is often caused. The phenomenon of interference fringing will seriously affect the quality of the display.
為了消除這種干涉疊紋的現象，有些製造商會調整兩片顯示面板之間的距離與角度，以降低干涉疊紋所造成的影響。然而，在產品規格的限制下，兩片顯示面板之間的距離不可能無窮地放大。此外，調整兩片顯示面板之間的角度將會導致畫面歪斜的問題，因此兩片顯示面板之間的角度也不可能隨意地調整。In order to eliminate this phenomenon of interference, some manufacturers will adjust the distance and angle between the two display panels to reduce the impact of interference. However, under the limitation of product specifications, the distance between two display panels cannot be infinitely magnified. In addition, adjusting the angle between the two display panels will cause the screen to be skewed, so the angle between the two display panels is also not arbitrarily adjustable.
所以，如何有效降低干涉疊紋對顯示品質所造成的影響，是目前相關產業迫切需要解決的問題之一。Therefore, how to effectively reduce the impact of interference overlay on display quality is one of the urgent problems that related industries need to solve.
本發明之一技術態樣是在提供一種顯示裝置，其可降低因顯示面板重疊所造成的干涉疊紋(Moiré Pattern)。One aspect of the present invention is to provide a display device that can reduce interference moiré patterns caused by overlapping of display panels.
根據本發明一實施方式，一種顯示裝置包含光箱、前顯示面板、後顯示面板、至少一側光源與至少一光學膜片。光箱具有相對之前板與後板，以及鄰接前板與後板之至少一橫板，同時前板具有開口於其中。前顯示面板位於前板之開口。後顯示面板位於光箱中。側光源位於橫板。光學膜片位於前顯示面板與後顯示面板之間，其中光學膜片具有霧度值(Haze)約10%~90%。According to an embodiment of the invention, a display device includes a light box, a front display panel, a rear display panel, at least one side light source, and at least one optical film. The light box has at least one transverse plate opposite the front and rear panels, and adjacent the front and rear panels, while the front panel has an opening therein. The front display panel is located at the opening of the front panel. The rear display panel is located in the light box. The side light source is located on the horizontal plate. The optical film is located between the front display panel and the rear display panel, wherein the optical film has a haze value of about 10% to 90%.
在本發明一或多個實施方式中，上述之光學膜片的霧度值(Haze)可為約13%~88%。In one or more embodiments of the present invention, the optical film may have a haze value of about 13% to 88%.
在本發明一或多個實施方式中，上述之光學膜片的霧度值可為約25%~50%。In one or more embodiments of the present invention, the optical film may have a haze value of about 25% to 50%.
在本發明一或多個實施方式中，上述之顯示裝置更包含一載板，此載板承載光學膜片。In one or more embodiments of the present invention, the display device further includes a carrier plate that carries the optical film.
在本發明一或多個實施方式中，上述之載板介於光學膜片與後顯示面板之間。In one or more embodiments of the present invention, the carrier is interposed between the optical film and the rear display panel.
在本發明一或多個實施方式中，上述之載板的折射率為約1~3。In one or more embodiments of the present invention, the carrier plate has a refractive index of about 1 to 3.
在本發明一或多個實施方式中，上述之載板的厚度T大致滿足0 mm<T≦50 mm。In one or more embodiments of the present invention, the thickness T of the carrier plate described above substantially satisfies 0 mm < T ≦ 50 mm.
在本發明一或多個實施方式中，上述之載板的厚度T大致滿足2 mm<T≦50 mm。In one or more embodiments of the present invention, the thickness T of the carrier plate described above substantially satisfies 2 mm < T ≦ 50 mm.
在本發明一或多個實施方式中，上述之載板的厚度T大致滿足10 mm<T≦20 mm。In one or more embodiments of the present invention, the thickness T of the carrier plate described above substantially satisfies 10 mm < T ≦ 20 mm.
在本發明一或多個實施方式中，上述之載板介於光 學膜片與前顯示面板之間。In one or more embodiments of the present invention, the carrier board is interposed between light Between the diaphragm and the front display panel.
在本發明一或多個實施方式中，上述之光學膜片與後顯示面板之間存在空氣間隙。In one or more embodiments of the present invention, there is an air gap between the optical film and the rear display panel.
在本發明一或多個實施方式中，上述之前顯示面板與後顯示面板之間的距離為約1 cm~20 cm。In one or more embodiments of the present invention, the distance between the front display panel and the rear display panel is about 1 cm to 20 cm.
在本發明一或多個實施方式中，上述之光學膜片具有偏振結構。In one or more embodiments of the invention, the optical film described above has a polarizing structure.
在本發明一或多個實施方式中，上述之後顯示面板包含下偏光片、陣列基板、對向基板與液晶層。陣列基板位於下偏光片與光學膜片之間。對向基板位於陣列基板與光學膜片之間，其中對向基板與光學膜片之間不具有任何偏光片。液晶層位於陣列基板與對向基板之間。In one or more embodiments of the present invention, the subsequent display panel includes a lower polarizer, an array substrate, a counter substrate, and a liquid crystal layer. The array substrate is located between the lower polarizer and the optical film. The opposite substrate is located between the array substrate and the optical film, wherein there is no polarizer between the opposite substrate and the optical film. The liquid crystal layer is located between the array substrate and the opposite substrate.
在本發明一或多個實施方式中，上述之顯示裝置更包含背光模組，此背光模組位於後顯示面板後，使得後顯示面板位於背光模組與光學膜片之間。In one or more embodiments of the present invention, the display device further includes a backlight module, and the backlight module is located behind the rear display panel such that the rear display panel is located between the backlight module and the optical film.
在本發明一或多個實施方式中，上述之前顯示面板為一透明顯示面板。In one or more embodiments of the present invention, the front display panel is a transparent display panel.
在本發明一或多個實施方式中，上述之光學膜片直接貼附在後顯示面板上。In one or more embodiments of the present invention, the optical film described above is directly attached to the rear display panel.
110‧‧‧光箱110‧‧‧ light box
112‧‧‧前板112‧‧‧ front board
114‧‧‧後板114‧‧‧Back board
116‧‧‧橫板116‧‧‧ horizontal board
120‧‧‧前顯示面板120‧‧‧Front display panel
122‧‧‧下偏光片122‧‧‧low polarizer
124‧‧‧陣列基板124‧‧‧Array substrate
126‧‧‧對向基板126‧‧‧ opposite substrate
128‧‧‧上偏光片128‧‧‧Upper Polarizer
129‧‧‧液晶層129‧‧‧Liquid layer
130‧‧‧後顯示面板130‧‧‧ rear display panel
132‧‧‧下偏光片132‧‧‧low polarizer
134‧‧‧陣列基板134‧‧‧Array substrate
136‧‧‧對向基板136‧‧‧ opposite substrate
138‧‧‧上偏光片138‧‧‧Upper Polarizer
139‧‧‧液晶層139‧‧‧Liquid layer
140‧‧‧側光源140‧‧‧ Side light source
150‧‧‧光學膜片150‧‧‧Optical diaphragm
160‧‧‧載板160‧‧‧ Carrier Board
170‧‧‧背光模組170‧‧‧Backlight module
D‧‧‧距離D‧‧‧Distance
G‧‧‧空氣間隙G‧‧‧Air gap
I‧‧‧展示空間I‧‧‧ display space
O‧‧‧開口O‧‧‧ openings
T‧‧‧厚度T‧‧‧ thickness
第1圖繪示依照本發明第一實施方式之顯示裝置的剖面示意圖。1 is a cross-sectional view showing a display device in accordance with a first embodiment of the present invention.
第2圖繪示依照本發明複數個實施例之光學膜片 的霧度值與對應載板厚度的圖表。2 is a view showing an optical film according to a plurality of embodiments of the present invention. The haze value is plotted against the thickness of the carrier.
第3圖繪示依照本發明第二實施方式之顯示裝置的剖面示意圖。3 is a cross-sectional view showing a display device in accordance with a second embodiment of the present invention.
第4圖繪示依照本發明第三實施方式之顯示裝置的剖面示意圖。4 is a cross-sectional view showing a display device in accordance with a third embodiment of the present invention.
第5圖繪示依照本發明第四實施方式之顯示裝置的剖面示意圖。Figure 5 is a cross-sectional view showing a display device in accordance with a fourth embodiment of the present invention.
以下將以圖式揭露本發明之複數個實施方式，為明確說明起見，許多實務上的細節將在以下敘述中一併說明。然而，應瞭解到，這些實務上的細節不應用以限制本發明。也就是說，在本發明部分實施方式中，這些實務上的細節是非必要的。此外，為簡化圖式起見，一些習知慣用的結構與元件在圖式中將以簡單示意的方式繪示之。The embodiments of the present invention are disclosed in the following drawings, and the details of However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.
第1圖繪示依照本發明第一實施方式之顯示裝置的剖面示意圖。如第1圖所示，一種顯示裝置包含光箱110、前顯示面板120、後顯示面板130、至少一側光源140與至少一光學膜片150。光箱110具有相對之前板112與後板114，以及鄰接前板112與後板114之至少一橫板116，同時前板112具有開口O於其中。前顯示面板120位於前板112之開口O。後顯示面板130位於光箱110中。側光源140位 於橫板116。光學膜片150位於前顯示面板120與後顯示面板130之間，其中光學膜片150具有霧度值(Haze)約10%~90%。1 is a cross-sectional view showing a display device in accordance with a first embodiment of the present invention. As shown in FIG. 1, a display device includes a light box 110, a front display panel 120, a rear display panel 130, at least one side light source 140, and at least one optical film 150. The light box 110 has an opposite front panel 112 and a rear panel 114, and at least one transverse panel 116 abutting the front panel 112 and the rear panel 114, while the front panel 112 has an opening O therein. The front display panel 120 is located at the opening O of the front panel 112. The rear display panel 130 is located in the light box 110. Side light source 140 bits On the horizontal plate 116. The optical film 150 is located between the front display panel 120 and the rear display panel 130, wherein the optical film 150 has a haze value of about 10% to 90%.
對於使用者的肉眼來說，上述之光學膜片150因為具有霧度值，因此可以模糊化後顯示面板130的畫素陣列排列，使得後顯示面板130的畫素陣列排列不致與前顯示面板120的畫素陣列排列產生交互作用，進而減少干涉疊紋(Moiré attern)的產生。For the naked eye of the user, the above-mentioned optical film 150 has a haze value, so that the pixel array arrangement of the display panel 130 can be blurred, so that the pixel array of the rear display panel 130 is not aligned with the front display panel 120. The arrangement of pixel arrays creates an interaction that reduces the generation of interference moiré.
上述之光學膜片150的霧度值應依照實際狀況選擇。在部分實施方式中，上述之光學膜片150的霧度值可為約13%~88%。更具體地說，上述之光學膜片150的霧度值可為約25%~50%。應了解到，以上所舉之光學膜片150的霧度值僅為例示，並非用以限制本發明，本發明所屬技術領域中具有通常知識者，應視實際需要，彈性選擇光學膜片150的霧度值。The haze value of the optical film 150 described above should be selected according to actual conditions. In some embodiments, the optical film 150 described above may have a haze value of about 13% to 88%. More specifically, the above optical film 150 may have a haze value of about 25% to 50%. It should be understood that the haze value of the above-mentioned optical film 150 is merely an example and is not intended to limit the present invention. Those having ordinary knowledge in the technical field of the present invention should flexibly select the optical film 150 according to actual needs. Haze value.
在本實施方式及後續相關敘述中，「約」、「大約」或「大致」係用以修飾任何可些微變化的數量，但這種些微變化並不會改變其本質。舉例來說，「其中光學膜片150具有霧度值(Haze)約10%~90%」，此一描述除了代表光學膜片150的霧度值確實為10%~90%外，只要能夠減少干涉疊紋的產生，光學膜片150的霧度值亦可略小10%，或略大於90%。在實施方式中若無特別說明，則代表以「約」、「大約」或「大致」所修飾之數值的誤差範圍一般是容許在20%以內，具體是於10%以內，更具體則是於5%以內。In the present embodiment and subsequent related descriptions, "about", "about" or "substantially" are used to modify the amount of any slight change, but such slight changes do not change their nature. For example, "the optical film 150 has a haze value of about 10% to 90%". This description is not limited to the fact that the haze value of the optical film 150 is actually 10% to 90%, as long as it can be reduced. The haze value of the optical film 150 can also be slightly less than 10%, or slightly more than 90%, due to the generation of interference fringes. In the embodiment, unless otherwise stated, the error range for the value modified by "about", "about" or "roughly" is generally allowed to be within 20%, specifically within 10%, and more specifically in Within 5%.
上述之光學膜片150可為任何具有霧度值的膜片。在本實施方式中，上述之光學膜片150可為具有霧度值的偏光片，因此本實施方式之光學膜片150可具有偏振結構。此外，在本實施方式中，光學膜片150的厚度可為約0.05 mm~2 mm。應了解到，以上所舉之光學膜片150的實施方式僅為例示，並非用以限制本發明，本發明所屬技術領域中具有通常知識者，應視實際需要，彈性選擇光學膜片150的實施方式。The optical film 150 described above may be any film having a haze value. In the present embodiment, the optical film 150 described above may be a polarizer having a haze value, and thus the optical film 150 of the present embodiment may have a polarization structure. Further, in the present embodiment, the optical film 150 may have a thickness of about 0.05 mm to 2 mm. It should be understood that the above embodiments of the optical film 150 are merely illustrative and are not intended to limit the present invention. Those skilled in the art to which the present invention pertains, the implementation of the optical film 150 should be elastically selected according to actual needs. the way.
在本實施方式中，光學膜片150與前顯示面板120之間具有展示空間I，用於展示物品，例如：藝術品、商品、彈珠台、遊戲台等，可設置於此展示空間I中。上述之側光源140可向展示空間I發出光線，以照亮展示空間I中的展示物品。然而，在部分情況下，若光學膜片150的霧度值太高，則側光源140照射在光學膜片150上的散射就會太明顯，使得後顯示面板130的影像對比度降低。In the present embodiment, the optical film 150 and the front display panel 120 have a display space I for displaying items such as art, merchandise, pinball, game table, etc., which can be disposed in the display space I. . The side light source 140 described above can emit light to the display space I to illuminate the display item in the display space 1. However, in some cases, if the haze value of the optical film 150 is too high, the scattering of the side light source 140 on the optical film 150 will be too significant, so that the image contrast of the rear display panel 130 is lowered.
為了因應上述情況所導致的問題，製造者可選擇將光學膜片150與後顯示面板130之間的距離拉大。一般而言，光學膜片150與後顯示面板130之間的距離越大，從光學膜片150處觀察到之後顯示面板130的畫素陣列排列就會越模糊。既然從光學膜片150處觀察到之後顯示面板130的畫素陣列排列已經模糊化，光學膜片150的霧度值就不需要太高，即可將後顯示面板130的畫素陣列排列充分模糊化，讓干涉疊紋降低。In order to cope with the problems caused by the above, the manufacturer can choose to enlarge the distance between the optical film 150 and the rear display panel 130. In general, the greater the distance between the optical film 150 and the rear display panel 130, the more blurred the pixel array arrangement of the display panel 130 will be after viewing from the optical film 150. Since the pixel array arrangement of the display panel 130 has been blurred since the optical film 150 is observed, the haze value of the optical film 150 does not need to be too high, and the pixel array arrangement of the rear display panel 130 can be sufficiently blurred. The interference is reduced.
為了拉大光學膜片150與後顯示面板130之間的距 離，製造者可選擇在光學膜片150與後顯示面板130之間設置載板160，並藉由載板160來定義光學膜片150與後顯示面板130之間的距離。具體而言，載板160背對後顯示面板130的一面可直接接觸光學膜片150(亦即，載板160與光學膜片150之間不存在任何空氣間隙)，而載板160面對後顯示面板130的一面則可直接接觸後顯示面板130(亦即，載板160與後顯示面板130之間不存在任何空氣間隙)。在以上配置下，從第1圖可以看得出來，載板160的厚度T將大致等於光學膜片150與後顯示面板130之間的距離。因此，載板160的厚度T越大，所需要之光學膜片150的霧度值就越小。In order to enlarge the distance between the optical film 150 and the rear display panel 130 Alternatively, the manufacturer may choose to provide a carrier 160 between the optical film 150 and the rear display panel 130, and define the distance between the optical film 150 and the rear display panel 130 by the carrier 160. Specifically, one side of the carrier 160 facing the rear display panel 130 can directly contact the optical film 150 (that is, there is no air gap between the carrier 160 and the optical film 150), and the carrier 160 faces the rear. One side of the display panel 130 can directly contact the rear display panel 130 (ie, there is no air gap between the carrier 160 and the rear display panel 130). In the above configuration, it can be seen from FIG. 1 that the thickness T of the carrier 160 will be substantially equal to the distance between the optical film 150 and the rear display panel 130. Therefore, the larger the thickness T of the carrier 160, the smaller the haze value of the optical film 150 required.
在本實施方式中，上述之載板160的厚度T大致滿足：0 mm<T≦50 mm。具體地說，上述之載板160的厚度T大致滿足：2 mm≦T≦50 mm。更具體地說，上述之載板160的厚度T大致滿足：10 mm≦T≦20 mm。應了解到，以上所舉之載板160的厚度T僅為例示，並非用以限制本發明，本發明所屬技術領域中具有通常知識者，應視實際需要，彈性選擇載板160的厚度T。In the present embodiment, the thickness T of the carrier 160 described above substantially satisfies: 0 mm < T ≦ 50 mm. Specifically, the thickness T of the carrier plate 160 described above substantially satisfies: 2 mm ≦ T ≦ 50 mm. More specifically, the thickness T of the carrier plate 160 described above substantially satisfies: 10 mm ≦ T ≦ 20 mm. It should be understood that the thickness T of the carrier 160 is merely illustrative and is not intended to limit the present invention. Those having ordinary knowledge in the technical field of the present invention should flexibly select the thickness T of the carrier 160 according to actual needs.
第2圖繪示依照本發明複數個實施例之光學膜片150的霧度值與對應載板160厚度T的圖表。第2圖所提供的五個實施例都是採用第1圖所繪示的顯示裝置，且各實施例除了光學膜片150的霧度值與載板160的厚度T為變數外，其餘各材料與尺寸參數均相同。以上五個實施例沒有觀測到干涉疊紋。由第2圖可以看得出來，載板160 的厚度T越厚，所需要之光學膜片150的霧度值就越小。相對地，載板160的厚度T越薄，所需要之光學膜片150的霧度值就越大。2 is a graph showing the haze value of the optical film 150 and the thickness T of the corresponding carrier 160 in accordance with a plurality of embodiments of the present invention. The five embodiments provided in FIG. 2 are all the display devices shown in FIG. 1 , and the other materials except the haze value of the optical film 150 and the thickness T of the carrier 160 are variables. Same as the size parameter. No interference fringing was observed in the above five embodiments. As can be seen from Figure 2, the carrier 160 The thicker the thickness T, the smaller the haze value of the optical film 150 required. In contrast, the thinner the thickness T of the carrier 160, the greater the haze value of the optical film 150 required.
舉例來說，當載板160的厚度T為47 mm時，光學膜片150的霧度值只要13%，就可以將干涉疊紋降低到肉眼無法察覺的程度。當載板160的厚度T為20 mm時，光學膜片150的霧度值則要25%，才能將干涉疊紋降低到肉眼無法察覺的程度。當載板160的厚度T為10 mm時，光學膜片150的霧度值則要達50%，才能將干涉疊紋降低到肉眼無法察覺的程度。當載板160的厚度T為2 mm時，光學膜片150的霧度值更要達76%，才能將干涉疊紋降低到肉眼無法察覺的程度。當沒有載板160時(或者說，當載板160的厚度T為0 mm時)，光學膜片150的霧度值則要達88%，才能將干涉疊紋降低到肉眼無法察覺的程度。For example, when the thickness T of the carrier 160 is 47 mm, the haze value of the optical film 150 is as long as 13%, and the interference pattern can be reduced to an extent that is invisible to the naked eye. When the thickness T of the carrier 160 is 20 mm, the optical film 150 has a haze value of 25% in order to reduce the interference pattern to an extent that is invisible to the naked eye. When the thickness T of the carrier 160 is 10 mm, the optical film 150 has a haze value of 50% to reduce the interference pattern to an extent that is invisible to the naked eye. When the thickness T of the carrier 160 is 2 mm, the optical film 150 has a haze value of 76% to reduce the interference pattern to an extent that is invisible to the naked eye. When there is no carrier 160 (or when the thickness T of the carrier 160 is 0 mm), the optical film 150 has a haze value of 88% to reduce the interference pattern to an extent that is invisible to the naked eye.
此外，由於光學膜片150的材質可能是軟質材料，因此載板160也可以用來承載光學膜片150，以維持光學膜片150的平整度。上述之載板160的材質可為任意的透明固體，例如：壓克力、玻璃等。此外，上述之載板160的折射率可為約1~3。應了解到，以上所舉之載板160的材質與折射率僅為例示，並非用以限制本發明，本發明所屬技術領域中具有通常知識者，應視實際需要，彈性選擇載板160的材質與折射率。In addition, since the material of the optical film 150 may be a soft material, the carrier 160 may also be used to carry the optical film 150 to maintain the flatness of the optical film 150. The material of the carrier 160 described above may be any transparent solid such as acrylic, glass or the like. In addition, the above-mentioned carrier 160 may have a refractive index of about 1 to 3. It should be understood that the materials and refractive indices of the above-mentioned carrier 160 are merely exemplary and are not intended to limit the present invention. Those skilled in the art to which the present invention pertains should flexibly select the material of the carrier 160 according to actual needs. With refractive index.
在本實施方式中，載板160可直接接觸後顯示面板130，亦即載板160與後顯示面板130之間可不存在任何空 氣間隙。如此一來，從後顯示面板130射出的光線將直接進入載板160，而不需要先折射進空氣間隙，然後再從空氣間隙折射進載板160，此舉將可降低因空氣間隙而導致的反射損失，進而增加出光效率。當然，如果情況許可，載板160也可以不要直接接觸後顯示面板130。亦即，載板160與後顯示面板130之間也可以存在空氣間隙。本發明所屬技術領域中具有通常知識者，應視實際需要，彈性選擇載板160與後顯示面板130之間的相對關係。In this embodiment, the carrier 160 can directly contact the rear display panel 130, that is, there is no space between the carrier 160 and the rear display panel 130. Air gap. As a result, the light emitted from the rear display panel 130 will directly enter the carrier 160 without being refracted into the air gap and then refracted into the carrier 160 from the air gap, which will reduce the air gap. The reflection loss increases the light extraction efficiency. Of course, the carrier 160 may not directly contact the rear display panel 130 if circumstances permit. That is, there may also be an air gap between the carrier 160 and the rear display panel 130. Those having ordinary knowledge in the technical field to which the present invention pertains should flexibly select the relative relationship between the carrier 160 and the rear display panel 130 as needed.
在本實施方式中，上述之後顯示面板130包含下偏光片132、陣列基板134、對向基板136、上偏光片138與液晶層139。陣列基板134位於下偏光片132與光學膜片150之間。對向基板136位於陣列基板134與光學膜片150之間。上偏光片138位於對向基板136與光學膜片150之間。液晶層139位於陣列基板134與對向基板136之間。In the present embodiment, the rear display panel 130 includes a lower polarizer 132, an array substrate 134, a counter substrate 136, an upper polarizer 138, and a liquid crystal layer 139. The array substrate 134 is located between the lower polarizer 132 and the optical film 150. The counter substrate 136 is located between the array substrate 134 and the optical film 150. The upper polarizer 138 is located between the opposite substrate 136 and the optical film 150. The liquid crystal layer 139 is located between the array substrate 134 and the opposite substrate 136.
在本實施方式中，上述之顯示裝置更可包含背光模組170。此背光模組170位於後顯示面板130後，使得後顯示面板130位於背光模組170與光學膜片150之間。上述之背光模組170可作為後顯示面板130與前顯示面板120的背光源。從背光模組170射出的光線將穿過後顯示面板130、載板160、光學膜片150與前顯示面板120，而抵達使用者的眼睛，讓使用者觀賞到後顯示面板130與前顯示面板120所輸出的影像。In the embodiment, the display device described above may further include a backlight module 170. The backlight module 170 is located behind the rear display panel 130 such that the rear display panel 130 is located between the backlight module 170 and the optical film 150. The backlight module 170 described above can serve as a backlight for the rear display panel 130 and the front display panel 120. The light emitted from the backlight module 170 will pass through the rear display panel 130, the carrier 160, the optical film 150 and the front display panel 120, and reach the eyes of the user, allowing the user to view the rear display panel 130 and the front display panel 120. The image that is output.
在本實施方式中，上述之前顯示面板120為透明顯示面板。更具體地說，上述之前顯示面板120包含下偏光 片122、陣列基板124、對向基板126、上偏光片128與液晶層129。下偏光片122位於上偏光片128與光學膜片150之間。陣列基板124位於上偏光片128與下偏光片122之間。對向基板126位於上偏光片128與陣列基板124之間。液晶層129位於陣列基板124與對向基板126之間。In the present embodiment, the front display panel 120 is a transparent display panel. More specifically, the front display panel 120 described above includes a lower polarized light. The sheet 122, the array substrate 124, the counter substrate 126, the upper polarizer 128, and the liquid crystal layer 129. The lower polarizer 122 is located between the upper polarizer 128 and the optical film 150. The array substrate 124 is located between the upper polarizer 128 and the lower polarizer 122. The opposite substrate 126 is located between the upper polarizer 128 and the array substrate 124. The liquid crystal layer 129 is located between the array substrate 124 and the opposite substrate 126.
上述之下偏光片122、陣列基板124、對向基板126、上偏光片128與液晶層129均可視為透明材質。因此，在顯示時，使用者除了能夠看到前顯示面板120所輸出的影像外，更可以透過前顯示面板120，看到展示空間I中的展示物品，以及後顯示面板130所輸出的影像。The polarizer 122, the array substrate 124, the counter substrate 126, the upper polarizer 128, and the liquid crystal layer 129 may be regarded as a transparent material. Therefore, in addition to being able to view the image output by the front display panel 120, the user can see the display item in the display space I and the image output by the rear display panel 130 through the front display panel 120.
應了解到，雖然第1圖將前顯示面板120繪示為液晶面板，但此並不限制本發明。事實上，只要是由畫素陣列排列組成的透明顯示面板，都可以做為前顯示面板120。舉例來說，在本發明一或多個實施方式中，上述之前顯示面板120也可以是有機電激發光二極體顯示面板(Organic Light-Emitting Diode Display；OLED Display)。It should be understood that although the first display panel 120 is illustrated as a liquid crystal panel in FIG. 1, this does not limit the present invention. In fact, as long as it is a transparent display panel composed of a pixel array arrangement, it can be used as the front display panel 120. For example, in one or more embodiments of the present invention, the front display panel 120 may also be an Organic Light-Emitting Diode Display (OLED Display).
如第1圖所繪示，上述之展示空間I的大小應視前顯示面板120與後顯示面板130之間的距離D、載板160的厚度T與光學膜片150的厚度而定。一般而言，前顯示面板120與後顯示面板130之間的距離D越大，展示空間I就越大。As shown in FIG. 1 , the size of the display space I described above depends on the distance D between the front display panel 120 and the rear display panel 130 , the thickness T of the carrier 160 , and the thickness of the optical film 150 . In general, the larger the distance D between the front display panel 120 and the rear display panel 130, the larger the display space I.
在本實施方式中，前顯示面板120與後顯示面板130之間的距離D為約1 cm~20 cm。應了解到，以上所舉之前顯示面板120與後顯示面板130之間的距離D僅為例 示，並非用以限制本發明，本發明所屬技術領域中具有通常知識者，應視實際需要，彈性選擇前顯示面板120與後顯示面板130之間的距離D。In the present embodiment, the distance D between the front display panel 120 and the rear display panel 130 is about 1 cm to 20 cm. It should be understood that the distance D between the display panel 120 and the rear display panel 130 is only an example. It is not intended to limit the present invention. Those having ordinary knowledge in the technical field of the present invention should flexibly select the distance D between the front display panel 120 and the rear display panel 130 as needed.
此外，隨著前顯示面板120與後顯示面板130之間的距離D越大，從前顯示面板120處觀察到之後顯示面板130的畫素陣列排列也會越模糊。因此，隨著前顯示面板120與後顯示面板130之間的距離D越大，所需要之光學膜片150的霧度值也會越小。Further, as the distance D between the front display panel 120 and the rear display panel 130 is larger, the arrangement of the pixel arrays of the display panel 130 after observing from the front display panel 120 is more blurred. Therefore, as the distance D between the front display panel 120 and the rear display panel 130 is larger, the required haze value of the optical film 150 is smaller.
在本發明一實施例中，主要採用第1圖所繪示的顯示裝置，其中前顯示面板120與後顯示面板130的畫素密度均為86 PPI(Pixels per inch；每英吋的畫素數量)，載板160的厚度T為20 mm，載板160的材質為玻璃，載板160的折射率為1.4，光學膜片150的材質為具有二氧化矽/丙烯酸系樹脂混成材料塗層之三醋酸纖維素，霧度為25%。在以上配置下，觀測者在任何距離下均未觀測到干涉疊紋。In an embodiment of the present invention, the display device illustrated in FIG. 1 is mainly used, wherein the pixel density of the front display panel 120 and the rear display panel 130 is 86 PPI (Pixels per inch; the number of pixels per inch) The thickness T of the carrier 160 is 20 mm, the material of the carrier 160 is glass, the refractive index of the carrier 160 is 1.4, and the material of the optical film 150 is a coating of a mixed material of cerium oxide/acrylic resin. Cellulose acetate, haze is 25%. In the above configuration, the observer did not observe interference fringes at any distance.
第3圖繪示依照本發明第二實施方式之顯示裝置的剖面示意圖。第二實施方式與第一實施方式的不同點在於：在第二實施方式中，載板160介於光學膜片150與前顯示面板120之間。3 is a cross-sectional view showing a display device in accordance with a second embodiment of the present invention. The second embodiment is different from the first embodiment in that, in the second embodiment, the carrier 160 is interposed between the optical film 150 and the front display panel 120.
綜合第一實施方式與第二實施方式，載板160除了可以介於光學膜片150與後顯示面板130之間外，也可以介於光學膜片150與前顯示面板120之間，只要載板160 能夠承載光學膜片150，並維持光學膜片150的平整度即可。In combination with the first embodiment and the second embodiment, the carrier 160 may be interposed between the optical film 150 and the front display panel 130, and may be interposed between the optical film 150 and the front display panel 120, as long as the carrier is provided. 160 It is possible to carry the optical film 150 and maintain the flatness of the optical film 150.
此外，在第二實施方式中，光學膜片150與後顯示面板130之間可存在空氣間隙G，此空氣間隙G能夠避免光學膜片150因直接接觸後顯示面板130而刮傷。當然，如果情況許可，光學膜片150也可以直接接觸後顯示面板130。亦即，光學膜片150與後顯示面板130之間也可以不存在空氣間隙G。本發明所屬技術領域中具有通常知識者，應視實際需要，彈性選擇光學膜片150與後顯示面板130之間的相對關係。Further, in the second embodiment, there may be an air gap G between the optical film 150 and the rear display panel 130, which can prevent the optical film 150 from being scratched by the direct contact with the display panel 130. Of course, the optical film 150 can also directly contact the rear display panel 130 if circumstances permit. That is, there may be no air gap G between the optical film 150 and the rear display panel 130. Those having ordinary knowledge in the technical field to which the present invention pertains should flexibly select the relative relationship between the optical film 150 and the rear display panel 130 as needed.
至於其他相關的結構與材質細節，均與第一實施方式相同，因此不再重複贅述之。As for other related structural and material details, they are the same as the first embodiment, and thus the description thereof will not be repeated.
第4圖繪示依照本發明第三實施方式之顯示裝置的剖面示意圖。第三實施方式與第一實施方式的不同點在於：在第三實施方式中，由於前顯示面板120與後顯示面板130重疊設置，因此後顯示面板130可省略上偏光片，而直接以前顯示面板120的下偏光片122作為後顯示面板130的上偏光片用。具體而言，在第三實施方式中，後顯示面板130的對向基板136與光學膜片150之間不具有任何偏光片。藉由此設計，可提升後顯示面板130的穿透率。4 is a cross-sectional view showing a display device in accordance with a third embodiment of the present invention. The third embodiment is different from the first embodiment in that, in the third embodiment, since the front display panel 120 and the rear display panel 130 are overlapped, the rear display panel 130 can omit the upper polarizer and directly display the front panel. The lower polarizer 122 of 120 is used as the upper polarizer of the rear display panel 130. Specifically, in the third embodiment, there is no polarizer between the opposite substrate 136 of the rear display panel 130 and the optical film 150. With this design, the transmittance of the rear display panel 130 can be improved.
至於其他相關的結構與材質細節，均與第一實施方式相同，因此不再重複贅述之。As for other related structural and material details, they are the same as the first embodiment, and thus the description thereof will not be repeated.
第5圖繪示依照本發明第四實施方式之顯示裝置的剖面示意圖。第四實施方式與第一實施方式的不同點在於：在第四實施方式中，光學膜片150可直接貼附在後顯示面板130上，而省略在光學膜片150與後顯示面板130之間的載板。Figure 5 is a cross-sectional view showing a display device in accordance with a fourth embodiment of the present invention. The fourth embodiment is different from the first embodiment in that, in the fourth embodiment, the optical film 150 can be directly attached to the rear display panel 130, and omitted between the optical film 150 and the rear display panel 130. Carrier board.
至於其他相關的結構與材質細節，均與第一實施方式相同，因此不再重複贅述之。As for other related structural and material details, they are the same as the first embodiment, and thus the description thereof will not be repeated.
雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾，因此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 present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.
110‧‧‧光箱110‧‧‧ light box
112‧‧‧前板112‧‧‧ front board
114‧‧‧後板114‧‧‧Back board
116‧‧‧橫板116‧‧‧ horizontal board
120‧‧‧前顯示面板120‧‧‧Front display panel
122‧‧‧下偏光片122‧‧‧low polarizer
124‧‧‧陣列基板124‧‧‧Array substrate
126‧‧‧對向基板126‧‧‧ opposite substrate
128‧‧‧上偏光片128‧‧‧Upper Polarizer
129‧‧‧液晶層129‧‧‧Liquid layer
130‧‧‧後顯示面板130‧‧‧ rear display panel
132‧‧‧下偏光片132‧‧‧low polarizer
134‧‧‧陣列基板134‧‧‧Array substrate
136‧‧‧對向基板136‧‧‧ opposite substrate
138‧‧‧上偏光片138‧‧‧Upper Polarizer
139‧‧‧液晶層139‧‧‧Liquid layer
140‧‧‧側光源140‧‧‧ Side light source
150‧‧‧光學膜片150‧‧‧Optical diaphragm
160‧‧‧載板160‧‧‧ Carrier Board
170‧‧‧背光模組170‧‧‧Backlight module
D‧‧‧距離D‧‧‧Distance
I‧‧‧展示空間I‧‧‧ display space
O‧‧‧開口O‧‧‧ openings
T‧‧‧厚度T‧‧‧ thickness
Claims (17)
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| TW102135864A TWI502251B (en) | 2013-10-03 | 2013-10-03 | Display device |
| CN201310555204.7A CN103543556B (en) | 2013-10-03 | 2013-11-11 | Display device |
| JP2014002705A JP2015072441A (en) | 2013-10-03 | 2014-01-09 | Display device |
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| TW102135864A TWI502251B (en) | 2013-10-03 | 2013-10-03 | Display device |
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| JP4428676B2 (en) * | 2000-07-10 | 2010-03-10 | 日東電工株式会社 | Scattering elliptical polarizing plate and liquid crystal display device |
| JP2004294705A (en) * | 2003-03-26 | 2004-10-21 | Fuji Photo Film Co Ltd | Box display device |
| JP2006113158A (en) * | 2004-10-13 | 2006-04-27 | Citizen Watch Co Ltd | Display apparatus |
| KR20070090654A (en) * | 2006-03-03 | 2007-09-06 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | Reducing moire effect in an lcd device comprising a light control film |
| JP2008233456A (en) * | 2007-03-20 | 2008-10-02 | Epson Imaging Devices Corp | Display device |
| TWI461801B (en) * | 2012-06-22 | 2014-11-21 | Au Optronics Corp | Transparent display panel and display device |
-
2013
- 2013-10-03 TW TW102135864A patent/TWI502251B/en not_active IP Right Cessation
- 2013-11-11 CN CN201310555204.7A patent/CN103543556B/en not_active Expired - Fee Related
-
2014
- 2014-01-09 JP JP2014002705A patent/JP2015072441A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101263417A (en) * | 2005-09-30 | 2008-09-10 | 夏普株式会社 | Liquid crystal display and television receiver |
| CN101059619A (en) * | 2006-04-18 | 2007-10-24 | Nec液晶技术株式会社 | Liquid crystal display device |
| TW201317672A (en) * | 2011-10-28 | 2013-05-01 | Au Optronics Corp | Transparent display device and display method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015072441A (en) | 2015-04-16 |
| CN103543556B (en) | 2016-08-17 |
| CN103543556A (en) | 2014-01-29 |
| TW201514586A (en) | 2015-04-16 |
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| MM4A | Annulment or lapse of patent due to non-payment of fees |