CN102520549B - Transparent display - Google Patents
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- CN102520549B CN102520549B CN201110396124.2A CN201110396124A CN102520549B CN 102520549 B CN102520549 B CN 102520549B CN 201110396124 A CN201110396124 A CN 201110396124A CN 102520549 B CN102520549 B CN 102520549B
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- 239000000463 material Substances 0.000 claims abstract description 76
- 239000002245 particle Substances 0.000 abstract description 64
- 239000010408 film Substances 0.000 abstract description 55
- 239000012788 optical film Substances 0.000 abstract description 33
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 20
- 239000004417 polycarbonate Substances 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000012994 photoredox catalyst Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
一种透明显示器，其包括一液晶显示面板以及一背光模块。背光模块配置于液晶显示面板的一侧，且背光模块包括一导光板、至少一光源以及至少一光学膜。导光板具有至少一侧入光面、一第一表面以及一相对于第一表面的第二表面，第二表面位于液晶显示面板与第一表面之间。光源邻近于导光板的侧入光面配置，而光学膜配置于第一表面上，其中光学膜包括一膜材以及多个掺杂于膜材内的散射微粒，且膜材的折射率异于散射微粒的折射率。
A transparent display includes a liquid crystal display panel and a backlight module. The backlight module is disposed on one side of the liquid crystal display panel, and includes a light guide plate, at least one light source, and at least one optical film. The light guide plate has at least one side light incident surface, a first surface, and a second surface opposite to the first surface, and the second surface is located between the liquid crystal display panel and the first surface. The light source is disposed adjacent to the side light incident surface of the light guide plate, and the optical film is disposed on the first surface, wherein the optical film includes a film material and a plurality of scattering particles doped in the film material, and the refractive index of the film material is different from the refractive index of the scattering particles.
Description
技术领域 technical field
本发明是有关于一种显示器，且特别是有关于一种透明显示器(transparent display)。The present invention relates to a display, and in particular to a transparent display.
背景技术 Background technique
目前市场对于液晶显示器(liquid crystal display，LCD)的性能要求是朝向高对比(high contrast ratio)、无灰阶反转(no gray scaleinversion)、色偏小(little color shift)、亮度高(high luminance)、高色彩丰富度、高色饱和度、快速反应与广视角等特性。At present, the performance requirements of liquid crystal display (LCD) in the market are towards high contrast ratio, no gray scale inversion, little color shift, and high luminance. ), high color richness, high color saturation, fast response and wide viewing angle.
一般而言，液晶显示器可以大致上区分为穿透式液晶显示器、反射式液晶显示器与半穿透半反射式液晶显示器。随着显示器的应用领域日趋广泛，透明显示器已经逐渐被开发。由于使用者可以从透明显示器的一侧看到另一侧的物体，因此透明显示器在视觉上不会有厚重感，且不会让使用者觉得很占空间。此外，透明显示器在整体结构上可以省去许多部件(例如透明显示器背面的壳体可以被省略)，因此在制造成本上具有一定程度的优势。Generally speaking, liquid crystal displays can be roughly divided into transmissive liquid crystal displays, reflective liquid crystal displays and transflective liquid crystal displays. As the application fields of displays become more and more extensive, transparent displays have been gradually developed. Since the user can see objects on the other side from one side of the transparent display, the transparent display will not feel heavy visually, and will not make the user feel that it takes up a lot of space. In addition, the transparent display can save many parts in the overall structure (for example, the casing on the back of the transparent display can be omitted), so it has a certain degree of advantage in manufacturing cost.
在现行的透明显示器中，显示影像所需的光源通常来自于外界光源与背光模块。当外界光源不足时，透明显示器比需依赖背光模块所提供的光线才能够显示影像。目前较为常见的方式是采用包含有光源与导光板的背光模块，由于导光板多半是以网印的方式在其上制作出具有特定分布型态的网点，这些具有特定分布型态的网点除了容易被观赏者辨识之外，还容易造成迭纹(Moire)，导致透明显示器的显示品质不佳。In current transparent displays, the light source required for displaying images usually comes from an external light source and a backlight module. When the external light source is insufficient, the transparent display can only display images depending on the light provided by the backlight module. At present, the more common method is to use a backlight module that includes a light source and a light guide plate. Since the light guide plate is mostly screen-printed to produce dots with a specific distribution pattern, these dots with a specific distribution pattern are not only easy to In addition to being recognized by viewers, it is also easy to cause Moire, resulting in poor display quality of the transparent display.
承上述，如何有效改善透明显示器的显示品质实为当前研发的重点之一。Based on the above, how to effectively improve the display quality of the transparent display is one of the focuses of current research and development.
发明内容 Contents of the invention
本发明提供一种透明显示器，其具有良好的显示品质。The invention provides a transparent display with good display quality.
本发明提供一种透明显示器，其包括一液晶显示面板以及一背光模块。背光模块配置于液晶显示面板的一侧，且背光模块包括一导光板、至少一光源以及至少一光学膜。导光板具有至少一侧入光面、一第一表面以及一相对于第一表面的第二表面，第二表面位于液晶显示面板与第一表面之间。光源邻近于导光板的侧入光面配置，而光学膜配置于第一表面上，其中光学膜包括一膜材以及多个掺杂于膜材内的散射微粒，且膜材的折射率异于散射微粒的折射率。The invention provides a transparent display, which includes a liquid crystal display panel and a backlight module. The backlight module is arranged on one side of the liquid crystal display panel, and the backlight module includes a light guide plate, at least one light source and at least one optical film. The light guide plate has at least one light incident surface, a first surface and a second surface opposite to the first surface, and the second surface is located between the liquid crystal display panel and the first surface. The light source is arranged adjacent to the light-incident surface of the light guide plate, and the optical film is arranged on the first surface, wherein the optical film includes a film material and a plurality of scattering particles doped in the film material, and the refractive index of the film material is different from that of The refractive index of the scattering particles.
在本发明的一实施例中，前述的散射微粒系均匀地分布于膜材中。In an embodiment of the present invention, the aforementioned scattering particles are evenly distributed in the film material.
在本发明的一实施例中，前述的散射微粒的分布密度介于0.1×10-5pcs/um3至100×10-5pcs/um3之间。In an embodiment of the present invention, the distribution density of the aforementioned scattering particles is between 0.1×10 -5 pcs/um 3 and 100×10 -5 pcs/um 3 .
在本发明的一实施例中，在距离侧入光面越远处，散射微粒在膜材中的分布密度越高。举例而言，散射微粒的分布密度介于0.01×10-5pcs/um3至260×10-5pcs/um3之间。In an embodiment of the present invention, the farther away from the side light-incident surface, the higher the distribution density of the scattering particles in the film material. For example, the distribution density of the scattering particles is between 0.01×10 -5 pcs/um 3 and 260×10 -5 pcs/um 3 .
在本发明的一实施例中，前述的至少一侧入光面包括一第一侧入光面以及一与第一侧入光面相对的第二侧入光面，而前述的至少一光源包括一第一光源与一第二光源，第一光源邻近于第一侧入光面配置，第二光源邻近于第二侧入光面配置，且在距离第一侧入光面与第二侧入光面越远处，散射微粒在膜材中的分布密度越高。举例而言，散射微粒的分布密度介于0.01×10-5pcs/um3至260×10-5pcs/um3之间。In an embodiment of the present invention, the aforementioned at least one side light incident surface includes a first side light incident surface and a second side light incident surface opposite to the first side light incident surface, and the aforementioned at least one light source includes A first light source and a second light source, the first light source is arranged adjacent to the first side light incident surface, the second light source is arranged adjacent to the second side light incident surface, and the distance between the first side light incident surface and the second side light incident surface The farther away the light surface is, the higher the distribution density of scattering particles in the film material is. For example, the distribution density of the scattering particles is between 0.01×10 -5 pcs/um 3 and 260×10 -5 pcs/um 3 .
在本发明的一实施例中，前述的各个散射微粒的粒径介于1微米至15微米之间。In an embodiment of the present invention, the particle size of each of the aforementioned scattering particles is between 1 micron and 15 microns.
在本发明的一实施例中，前述的膜材的折射率大于导光板的折射率。In an embodiment of the present invention, the refractive index of the aforementioned film material is greater than the refractive index of the light guide plate.
在本发明的一实施例中，前述的至少一光学膜包括一第一光学膜以及一第二光学膜。第一光学膜包括一第一膜材以及多个掺杂于第一膜材内的第一散射微粒，且第一膜材的折射率异于第一散射微粒的折射率。第二光学膜包括一第二膜材以及多个掺杂于第二膜材内的第二散射微粒，且第二膜材的折射率异于第二散射微粒的折射率。此外，第一光学膜位于第二光学膜与导光板之间。In an embodiment of the present invention, the aforementioned at least one optical film includes a first optical film and a second optical film. The first optical film includes a first film material and a plurality of first scattering particles doped in the first film material, and the refractive index of the first film material is different from that of the first scattering particles. The second optical film includes a second film material and a plurality of second scattering particles doped in the second film material, and the refractive index of the second film material is different from that of the second scattering particles. In addition, the first optical film is located between the second optical film and the light guide plate.
在本发明的一实施例中，前述的第一散射微粒系均匀地分布于第一膜材中，而第二散射微粒系均匀地分布于第二膜材中。In an embodiment of the present invention, the aforementioned first scattering particles are evenly distributed in the first film material, and the second scattering particles are evenly distributed in the second film material.
在本发明的一实施例中，前述的第一散射微粒系均匀地分布于第一膜材中，而在距离侧入光面越远处，第二散射微粒在第二膜材中的分布密度越高。In one embodiment of the present invention, the aforementioned first scattering particles are evenly distributed in the first film material, and the farther away from the side light incident surface, the distribution density of the second scattering particles in the second film material higher.
在本发明的一实施例中，前述的第二散射微粒系均匀地分布于第二膜材中，而在距离侧入光面越远处，第一散射微粒在第一膜材中的分布密度越高。In an embodiment of the present invention, the aforementioned second scattering particles are evenly distributed in the second film material, and the farther away from the side light incident surface, the distribution density of the first scattering particles in the first film material higher.
在本发明的一实施例中，在距离侧入光面越远处，第一散射微粒在第一膜材中的分布密度越高，而在距离侧入光面越远处，第二散射微粒在第二膜材中的分布密度越高。In an embodiment of the present invention, the farther away from the side light incident surface, the higher the distribution density of the first scattering particles in the first film material, and the farther away from the side light incident surface, the higher the distribution density of the second scattering particles. The higher the distribution density in the second film material.
相较于导光板上的网点，本发明的光学膜中的散射微粒不易被观赏者辨识，且不会导致透明显示器所显示的影像出现迭纹。因此，本申请的透明显示器具有良好的显示品质。Compared with the dots on the light guide plate, the scattering particles in the optical film of the present invention are not easy to be identified by viewers, and will not cause moiré in the image displayed on the transparent display. Therefore, the transparent display of the present application has good display quality.
为让本发明的上述特征和优点能更明显易懂，下文特举实施例，并配合所附图式作详细说明如下。In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings.
附图说明 Description of drawings
图1为本发明第一实施例的透明显示器的剖面示意图。FIG. 1 is a schematic cross-sectional view of a transparent display according to a first embodiment of the present invention.
图2为本发明第二实施例的透明显示器的剖面示意图。FIG. 2 is a schematic cross-sectional view of a transparent display according to a second embodiment of the present invention.
图3为本发明第三实施例的透明显示器的剖面示意图。FIG. 3 is a schematic cross-sectional view of a transparent display according to a third embodiment of the present invention.
图4为本发明第四实施例的透明显示器的剖面示意图。FIG. 4 is a schematic cross-sectional view of a transparent display according to a fourth embodiment of the present invention.
图5为本发明第五实施例的透明显示器的剖面示意图。FIG. 5 is a schematic cross-sectional view of a transparent display according to a fifth embodiment of the present invention.
图6为本发明第六实施例的透明显示器的剖面示意图。FIG. 6 is a schematic cross-sectional view of a transparent display according to a sixth embodiment of the present invention.
图7为本发明第七实施例的透明显示器的剖面示意图。FIG. 7 is a schematic cross-sectional view of a transparent display according to a seventh embodiment of the present invention.
附图标记说明Explanation of reference signs
100、100a～100e、200：透明显示器100, 100a～100e, 200: transparent display
110：液晶显示面板110: Liquid crystal display panel
120：背光模块120: Backlight module
122：导光板122: light guide plate
122a：侧入光面122a: side incident light surface
122a1：第一侧入光面122a1: First side light incident surface
122a2：第二侧入光面122a2: Second side light incident surface
122b：第一表面122b: first surface
122c：第二表面122c: second surface
124：光源124: light source
124a：第一光源124a: first light source
124b：第二光源124b: Second light source
126：光学膜126: Optical film
126’：第一光学膜126': The first optical film
126”：第二光学膜126": second optical film
126a：膜材126a: Membrane material
126a’：第一膜材126a': the first membrane material
126a”：第二膜材126a": the second membrane material
126b：散射微粒126b: Scattering Particles
126b’：第一散射微粒126b': first scattering particle
126b”：第二散射微粒126b": second scattering particle
具体实施方法Specific implementation method
【第一实施例】【The first embodiment】
图1为本发明第一实施例的透明显示器的剖面示意图。请参照图1，本实施例的透明显示器100包括一液晶显示面板110以及一背光模块120。背光模块120配置于液晶显示面板110的一侧，且背光模块120包括一导光板122、至少一光源124以及至少一光学膜126。导光板122具有至少一侧入光面122a、一第一表面122b以及一相对于第一表面122b的第二表面122c，第二表面122c位于液晶显示面板110与第一表面122b之间。光源124邻近于导光板122的侧入光面122a配置，而光学膜126配置于第一表面122b上，其中光学膜126包括一膜材126a以及多个掺杂于膜材126a内的散射微粒126b，且膜材126a的折射率异于散射微粒126b的折射率。另外，光学膜126在导光板122第一表面122b上的配置方式可包括涂布、贴附或其他方式形成于导光板122第一表面122b。在本实施例，膜层126a的折射率可大于导光板122的折射率，以增加散射微粒126b散射光线时的正向出光比例，以符合使用者观测角度。FIG. 1 is a schematic cross-sectional view of a transparent display according to a first embodiment of the present invention. Please refer to FIG. 1 , the transparent display 100 of this embodiment includes a liquid crystal display panel 110 and a backlight module 120 . The backlight module 120 is disposed on one side of the liquid crystal display panel 110 , and the backlight module 120 includes a light guide plate 122 , at least one light source 124 and at least one optical film 126 . The light guide plate 122 has at least one light incident surface 122a, a first surface 122b and a second surface 122c opposite to the first surface 122b. The second surface 122c is located between the liquid crystal display panel 110 and the first surface 122b. The light source 124 is disposed adjacent to the side light incident surface 122a of the light guide plate 122, and the optical film 126 is disposed on the first surface 122b, wherein the optical film 126 includes a film material 126a and a plurality of scattering particles 126b doped in the film material 126a , and the refractive index of the film material 126a is different from that of the scattering particles 126b. In addition, the arrangement of the optical film 126 on the first surface 122b of the light guide plate 122 may include coating, sticking or other methods formed on the first surface 122b of the light guide plate 122 . In this embodiment, the refractive index of the film layer 126a can be greater than that of the light guide plate 122, so as to increase the proportion of forward light output when the scattering particles 126b scatter light, so as to meet the viewing angle of the user.
在本实施例中，液晶显示面板110例如为一穿透式液晶显示面板或是一半穿透半反射式(transflective)液晶显示面板。为了增加透明显示器100的透光度，可采用穿透式液晶显示面板为佳。In this embodiment, the liquid crystal display panel 110 is, for example, a transmissive liquid crystal display panel or a transflective liquid crystal display panel. In order to increase the light transmittance of the transparent display 100, it is preferable to use a transmissive liquid crystal display panel.
为了使透明显示器100能够具备一定程度的透光率，本实施例的背光模块120中的构件(如导光板122、光学膜126)皆须具备一定程度的穿透率。在本实施例中，导光板122的材质例如包含聚甲基丙烯酸甲酯(polymethylmethacrylate，PMMA)、聚碳酸酯(polycarbonate，PC)、聚苯乙烯(polystyrene PS)、聚乙烯对苯二甲酸酯(polyethylene terephthalate，PET)等。In order for the transparent display 100 to have a certain degree of light transmittance, the components in the backlight module 120 of this embodiment (such as the light guide plate 122 and the optical film 126 ) must have a certain degree of transmittance. In this embodiment, the material of the light guide plate 122 includes, for example, polymethylmethacrylate (PMMA), polycarbonate (polycarbonate, PC), polystyrene (polystyrene PS), polyethylene terephthalate (polyethylene terephthalate, PET) and so on.
本实施例对应导光板122的第一表面122b上无须配置反射片，以使使用者可观看到透明显示器背面的物件。此外，为了增加透明显示器的穿透度，在液晶显示面板110与导光板122的第二表面122c之间会避免设置光学薄膜(如棱镜膜、扩散膜、增光膜等)。In this embodiment, no reflective sheet is required on the first surface 122b of the light guide plate 122, so that the user can view objects on the back of the transparent display. In addition, in order to increase the transparency of the transparent display, an optical film (such as a prism film, a diffusion film, a light enhancement film, etc.) is avoided between the liquid crystal display panel 110 and the second surface 122c of the light guide plate 122 .
在本实施例中，光源124例如为一白光发光二极管光条(light bar)。举例而言，此白光发光二极管光条可由一线路板以及多的白光发光二极管封装体所构成。此外，线路板例如为一硬质(rigid)线路板或一可挠性(flexible)线路板，而白光发光二极管封装体例如为一顶面发光型态(top-view)的白光发光二极管封装体或一侧向发光型态(side-view)的白光发光二极管封装体。然光源种类不限于此，亦可选用萤光灯管或其他适宜光源类型。In this embodiment, the light source 124 is, for example, a white LED light bar. For example, the white light emitting diode light bar can be composed of a circuit board and a plurality of white light emitting diode packages. In addition, the circuit board is, for example, a rigid circuit board or a flexible circuit board, and the white light emitting diode package is, for example, a top-view white light emitting diode package. Or a side-view white light emitting diode package. However, the type of light source is not limited thereto, and fluorescent tubes or other suitable light source types can also be selected.
值得注意的是，在本实施例的光学膜126中，散射微粒126b系均匀地分布于膜材126a中。散射微粒126b在膜材126a中的分布密度例如系可介于0.1×10-5pcs/um3至100×10-5pcs/um3之间，而各个散射微粒126b的粒径例如系介于1微米至15微米之间。由于散射微粒126b的粒径很小，因此，当背光模块120被开启时，散射微粒126b不易被观赏者所辨识。It should be noted that in the optical film 126 of this embodiment, the scattering particles 126b are evenly distributed in the film material 126a. The distribution density of the scattering particles 126b in the film material 126a can be, for example, between 0.1×10 -5 pcs/um 3 and 100×10 -5 pcs/um 3 , and the particle size of each scattering particle 126b is, for example, between Between 1 micron and 15 microns. Since the particle size of the scattering particles 126b is very small, when the backlight module 120 is turned on, the scattering particles 126b are not easily recognized by the viewer.
在本实施例中，膜材126a的材质例如包含聚甲基丙烯酸甲酯(polymethylmethacrylate，FMMA)、聚碳酸酯(polycarbonate，PC)、聚乙烯对苯二甲酸酯(polyethylene terephthalate，PET)等，膜材126a的折射率例如系介于1.35至1.65之间，而散射微粒126b的材质例如为二氧化硅(SiO2)_等，且散射微粒126b的折射率例如系介于1.4至1.75之间。In this embodiment, the material of the film material 126a includes, for example, polymethylmethacrylate (polymethylmethacrylate, FMMA), polycarbonate (polycarbonate, PC), polyethylene terephthalate (polyethylene terephthalate, PET), etc. The refractive index of the film material 126a is, for example, between 1.35 and 1.65, and the material of the scattering particles 126b is, for example, silicon dioxide (SiO 2 )_, etc., and the refractive index of the scattering particles 126b is, for example, between 1.4 and 1.75.
【第二实施例】【Second Embodiment】
图2为本发明第二实施例的透明显示器的剖面示意图。请参照图2，本实施例的透明显示器100a与第一实施例的透明显示器100类似，惟二者主要差异的处在于：在本实施例的透明显示器100a中，在距离侧入光面122a越远处，散射微粒126b在膜材126a中的分布密度越高。举例而言，散射微粒126b的分布密度介于0.01×10-5pcs/um3至260×10-5pcs/um3之间，譬如接近侧入光面122a的散射微粒126b的分布密度为0.01×10-5pcs/um3，远离侧入光面122a的散射微粒126b的分布密度为260×10-5pcs/um3。FIG. 2 is a schematic cross-sectional view of a transparent display according to a second embodiment of the present invention. Please refer to FIG. 2 , the transparent display 100a of this embodiment is similar to the transparent display 100 of the first embodiment, but the main difference between the two is that in the transparent display 100a of this embodiment, the distance from the side light-incident surface 122a is more The farther away, the higher the distribution density of the scattering particles 126b in the film material 126a. For example, the distribution density of the scattering particles 126b is between 0.01×10 -5 pcs/um 3 and 260×10 -5 pcs/um 3 , for example, the distribution density of the scattering particles 126b near the side incident light surface 122a is 0.01 ×10 -5 pcs/um 3 , the distribution density of the scattering particles 126b away from the side light incident surface 122a is 260×10 -5 pcs/um 3 .
【第三实施例】[Third embodiment]
图3为本发明第三实施例的透明显示器的剖面示意图。请参照图3，本实施例的透明显示器100b与第一实施例的透明显示器100类似，惟二者主要差异的处在于：在本实施例的透明显示器100b中，光学膜126包括一第一光学膜126’以及一第二光学膜126”。第一光学膜126’包括一第一膜材126a’以及多个掺杂于第一膜材126a’内的第一散射微粒126b’，且第一膜材126a’的折射率异于第一散射微粒126b’的折射率。第二光学膜126”包括一第二膜材126a”以及多个掺杂于第二膜材126a”内的第二散射微粒126b”，且第二膜材126a”的折射率异于第二散射微粒126b”的折射率。此外，第一光学膜126’位于第二光学膜126”与导光板122之间。使用到多层光学膜的目的，可增加光学品味调整的自由度。FIG. 3 is a schematic cross-sectional view of a transparent display according to a third embodiment of the present invention. Please refer to FIG. 3, the transparent display 100b of this embodiment is similar to the transparent display 100 of the first embodiment, but the main difference between the two is: in the transparent display 100b of this embodiment, the optical film 126 includes a first optical film 126' and a second optical film 126". The first optical film 126' includes a first film material 126a' and a plurality of first scattering particles 126b' doped in the first film material 126a', and the first The refractive index of the film material 126a' is different from that of the first scattering particles 126b'. The second optical film 126" includes a second film material 126a" and a plurality of second scattering particles doped in the second film material 126a". particles 126b", and the refractive index of the second film material 126a" is different from that of the second scattering particles 126b". In addition, the first optical film 126' is located between the second optical film 126" and the light guide plate 122. The purpose of using multilayer optical film can increase the freedom of optical taste adjustment.
从图3可清楚得知，第一散射微粒126b’系均匀地分布于第一膜材126a’中，而第二散射微粒126b”系均匀地分布于第二膜材126a”中。值得注意的是，第一散射微粒126b’在第一膜材126a’中的分布密度与第二散射微粒126b”在第二膜材126a”中的分布密度可相同或互异。此外，第一膜材126a’的材质与第二膜材126a”的材质可相同或互异，而第一散射微粒126b’的材质与第二散射微粒126b”的材质可相同或互异。It can be clearly seen from FIG. 3 that the first scattering particles 126b' are evenly distributed in the first film material 126a', and the second scattering particles 126b" are evenly distributed in the second film material 126a". It should be noted that the distribution density of the first scattering particles 126b' in the first film material 126a' and the distribution density of the second scattering particles 126b" in the second film material 126a" may be the same or different from each other. In addition, the material of the first film material 126a' and the material of the second film material 126a" can be the same or different, and the material of the first scattering particles 126b' and the material of the second scattering particles 126b" can be the same or different.
【第四实施例】[Fourth Embodiment]
图4为本发明第四实施例的透明显示器的剖面示意图。请参照图4，本实施例的透明显示器100c与第三实施例的透明显示器100b类似，惟二者主要差异的处在于：第一散射微粒126b’系均匀地分布于第一膜材126a’中，而在距离侧入光面122a越远处，第二散射微粒126b”在第二膜材126a”中的分布密度越高。FIG. 4 is a schematic cross-sectional view of a transparent display according to a fourth embodiment of the present invention. Please refer to FIG. 4, the transparent display 100c of this embodiment is similar to the transparent display 100b of the third embodiment, but the main difference between the two is that the first scattering particles 126b' are evenly distributed in the first film material 126a' , and the farther away from the side light incident surface 122a, the higher the distribution density of the second scattering particles 126b" in the second film material 126a".
【第五实施例】[fifth embodiment]
图5为本发明第五实施例的透明显示器的剖面示意图。请参照图5，本实施例的透明显示器100d与第三实施例的透明显示器100b，惟二者主要差异的处在于：第二散射微粒126b”系均匀地分布于第二膜材126a”中，而在距离侧入光面122a越远处，第一散射微粒126b’在第一膜材126a’中的分布密度越高。FIG. 5 is a schematic cross-sectional view of a transparent display according to a fifth embodiment of the present invention. Please refer to FIG. 5, the transparent display 100d of this embodiment is different from the transparent display 100b of the third embodiment, but the main difference between them is that the second scattering particles 126b" are evenly distributed in the second film material 126a", The farther away from the side light incident surface 122a, the higher the distribution density of the first scattering particles 126b' in the first film material 126a'.
【第六实施例】[Sixth embodiment]
图6为本发明第六实施例的透明显示器的剖面示意图。请参照图6，本实施例的透明显示器100e与第三实施例的透明显示器100b，惟二者主要差异的处在于：在距离侧入光面122a越远处，第一散射微粒126b’在第一膜材126a’中的分布密度越高，而在距离侧入光面122a越远处，第二散射微粒126b”在第二膜材126a”中的分布密度越高。FIG. 6 is a schematic cross-sectional view of a transparent display according to a sixth embodiment of the present invention. Please refer to FIG. 6, the transparent display 100e of this embodiment is different from the transparent display 100b of the third embodiment, but the main difference between them is that the farther away from the side light-incident surface 122a, the first scattering particles 126b' The higher the distribution density in a film material 126a' is, the further the distance from the side light incident surface 122a is, the higher the distribution density of the second scattering particles 126b" in the second film material 126a" is.
【第七实施例】[Seventh embodiment]
图7为本发明第七实施例的透明显示器的剖面示意图。请参照图7，本实施例的透明显示器200与第二实施例的透明显示器100a，惟二者主要差异的处在于：本实施例的导光板122具有一第一侧入光面122a1以及一与第一侧入光面122a1相对的第二侧入光面122a2，而前述的至少一光源124包括一第一光源124a与一第二光源124b，第一光源124邻近于第一侧入光面122a1配置，第二光源124b邻近于第二侧入光面122a2配置，且在距离第一侧入光面122a1与第二侧入光面122a2越远处，散射微粒126b在膜材126a中的分布密度越高。举例而言，散射微粒126b的分布密度介于0.01×10-5pcs/um3至260×10-5pcs/um3之间。FIG. 7 is a schematic cross-sectional view of a transparent display according to a seventh embodiment of the present invention. Please refer to FIG. 7, the transparent display 200 of the present embodiment is different from the transparent display 100a of the second embodiment, but the main difference between the two is that the light guide plate 122 of the present embodiment has a first side light incident surface 122a1 and a The second side light incident surface 122a2 opposite to the first side light incident surface 122a1, and the aforementioned at least one light source 124 includes a first light source 124a and a second light source 124b, and the first light source 124 is adjacent to the first side light incident surface 122a1 Configuration, the second light source 124b is arranged adjacent to the second side light incident surface 122a2, and the farther away from the first side light incident surface 122a1 and the second side light incident surface 122a2, the distribution density of the scattering particles 126b in the film material 126a higher. For example, the distribution density of the scattering particles 126b is between 0.01×10 −5 pcs/um 3 and 260×10 −5 pcs/um 3 .
相较于导光板上的网点，本发明的光学膜中的散射微粒不易被观赏者辨识，且不会导致透明显示器所显示的影像出现迭纹。因此，本申请的透明显示器具有良好的显示品质。Compared with the dots on the light guide plate, the scattering particles in the optical film of the present invention are not easy to be identified by viewers, and will not cause moiré in the image displayed on the transparent display. Therefore, the transparent display of the present application has good display quality.
虽然本发明已以实施例公开如上，然其并非用以限定本发明，任何本领域技术人员在不脱离本发明的精神和范围内，当可作些许的更动与润饰，故本发明的保护范围以权利要求书为准。Although the present invention has been disclosed as above with the embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some changes and modifications without departing from the spirit and scope of the present invention, so the protection of the present invention The scope is defined by the claims.
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| TW100138477A TW201317673A (en) | 2011-10-24 | 2011-10-24 | Transparent display |
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| CN103900027A (en) * | 2012-12-28 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Optical module |
| CN104570191A (en) * | 2013-10-24 | 2015-04-29 | 华为终端有限公司 | Light guide plate and backlight module |
| TW201531777A (en) | 2014-02-07 | 2015-08-16 | Chunghwa Picture Tubes Ltd | Transparent display apparatus |
| TWI502564B (en) * | 2014-05-23 | 2015-10-01 | Au Optronics Corp | Transparent display device and operation method thereof |
| CN104375325B (en) * | 2014-11-17 | 2017-10-24 | 深圳市华星光电技术有限公司 | A kind of transparent display |
| CN104534357A (en) * | 2014-12-22 | 2015-04-22 | 深圳市华星光电技术有限公司 | Backlight module, transparent display panel and transparent display device |
| US20160178832A1 (en) * | 2014-12-22 | 2016-06-23 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module, transparent display panel and transparent display apparatus |
| TWI677733B (en) * | 2015-06-01 | 2019-11-21 | 凌暉科技股份有限公司 | Double-sided display |
| CN106646727B (en) | 2017-03-17 | 2020-02-18 | 京东方科技集团股份有限公司 | Transparent display device |
| CN114488609B (en) * | 2020-11-11 | 2023-01-31 | 京东方科技集团股份有限公司 | Transparent display device, manufacturing method thereof and backlight module |
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| CN2594822Y (en) * | 2002-12-26 | 2003-12-24 | 鸿富锦精密工业（深圳）有限公司 | Background light system |
| CN1553259A (en) * | 2003-05-27 | 2004-12-08 | 明基电通股份有限公司 | Backlight module |
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