技术领域technical field
本发明涉及一种显示装置，且特别是涉及一种穿戴式显示装置。The present invention relates to a display device, and in particular to a wearable display device.
背景技术Background technique
目前穿戴式显示装置主要为有机电致发光(Organic Electro-Luminescent,OEL)显示装置。有机电致发光显示装置利用有机发光二极管(Organic Light Emitting Diode,OLED)提供显示所需的光源，因此有机电致发光显示装置可以不用设置背光模块。惟有机发光二极管对水气及氧气的耐受性(tolerance)不佳，而需采用真空设备制作。因此，目前穿戴式显示装置的价格普遍昂贵。At present, wearable display devices are mainly Organic Electro-Luminescent (OEL) display devices. The organic electroluminescent display device uses an organic light emitting diode (Organic Light Emitting Diode, OLED) to provide a light source required for display, so the organic electroluminescent display device does not need to be provided with a backlight module. However, organic light-emitting diodes have poor tolerance to water vapor and oxygen, so they need to be produced by vacuum equipment. Therefore, the current wearable display devices are generally expensive.
穿戴式显示装置若采用背光模块提供显示所需的光源，虽可具有价格低的优势，但容易因区域亮度不均的问题而导致显示质量不佳，例如邻近光源的区域较亮而远离光源的区域较暗以至于显示画面亮暗不均。是以，如何在价格的优势下，改善区域亮度不均的问题，便成为此领域研发人员亟欲解决的问题之一。If the wearable display device uses a backlight module to provide the light source required for display, although it can have the advantage of low price, it is easy to cause poor display quality due to the problem of uneven brightness in the area, for example, the area adjacent to the light source is brighter and the area far away from the light source The area is so dark that the display is unevenly lit. Therefore, how to improve the problem of uneven brightness in the area under the advantage of price has become one of the problems that researchers in this field want to solve urgently.
发明内容Contents of the invention
本发明提供一种穿戴式显示装置，其兼具价格优势及显示质量。The invention provides a wearable display device, which has both price advantage and display quality.
本发明提供了一种穿戴式显示装置，其包括显示面板、背光模块、中心转轴以及至少一指针。背光模块与显示面板相对且包括导光板、光源以及至少一光学膜片。导光板具有多个导光微结构。导光微结构位于导光板背对显示面板的表面，其中导光微结构在导光板的周围区域的密度小于导光微结构在导光板的中心区域的密度。光源包括至少一发光元件。所述至少一发光元件位于导光板的侧面。所述至少一光学膜片位于导光板与显示面板之间，其中显示面板、导光板以及所述至少一光学膜片分别具有贯孔，且显示面板、导光板以及所述至少一光学膜片的贯孔彼此连通而形成容置孔。中心转轴位于容置孔中，且中心转轴靠近显示面板的端部凸出于容置孔。所述至少一指针与中心转轴的端部耦接，且中心转轴作为所述至少一指针的旋转中心。The invention provides a wearable display device, which includes a display panel, a backlight module, a central rotating shaft and at least one pointer. The backlight module is opposite to the display panel and includes a light guide plate, a light source and at least one optical film. The light guide plate has multiple light guide microstructures. The light guide microstructures are located on the surface of the light guide plate facing away from the display panel, wherein the density of the light guide microstructures in the peripheral area of the light guide plate is smaller than the density of the light guide microstructures in the central area of the light guide plate. The light source includes at least one light emitting element. The at least one light emitting element is located on the side of the light guide plate. The at least one optical film is located between the light guide plate and the display panel, wherein the display panel, the light guide plate, and the at least one optical film respectively have through holes, and the display panel, the light guide plate, and the at least one optical film The through holes communicate with each other to form accommodating holes. The central rotating shaft is located in the accommodating hole, and the end of the central rotating shaft close to the display panel protrudes out of the accommodating hole. The at least one pointer is coupled to the end of the central rotating shaft, and the central rotating shaft serves as the rotation center of the at least one pointer.
在本发明的一实施例中，上述的导光微结构在邻近所述至少一发光元件的密度为每平方毫米15个至每平方毫米20个，且导光微结构在导光板的中心区域的密度为每平方毫米20个至每平方毫米25个。In an embodiment of the present invention, the density of the above-mentioned light guide microstructure adjacent to the at least one light-emitting element is 15 to 20 per square millimeter, and the light guide microstructure is located in the central area of the light guide plate. The density is 20 to 25 per square millimeter.
在本发明的一实施例中，上述的各导光微结构的最大粒径为30微米至50微米。In an embodiment of the present invention, the maximum particle size of each of the above-mentioned light guide microstructures is 30 microns to 50 microns.
在本发明的一实施例中，上述的导光微结构是凹入于导光板的沟槽或是凸出于导光板的网点。In an embodiment of the present invention, the above-mentioned light guide microstructure is a groove recessed in the light guide plate or a dot protruding from the light guide plate.
在本发明的一实施例中，上述的光源还包括电路板。所述至少一发光元件配置在电路板上。背光模块还包括反射片。反射片位于导光板与电路板之间，且反射片具有至少一开口。所述至少一发光元件通过所述至少一开口而配置在导光板的侧面。In an embodiment of the present invention, the above-mentioned light source further includes a circuit board. The at least one light emitting element is configured on the circuit board. The backlight module also includes a reflection sheet. The reflection sheet is located between the light guide plate and the circuit board, and the reflection sheet has at least one opening. The at least one light emitting element is disposed on the side of the light guide plate through the at least one opening.
在本发明的一实施例中，上述的背光模块还包括至少一导光条。所述至少一导光条围绕导光板，且所述至少一导光条的两端分别指向所述至少一发光元件。In an embodiment of the present invention, the above-mentioned backlight module further includes at least one light guide strip. The at least one light guide strip surrounds the light guide plate, and the two ends of the at least one light guide strip respectively point to the at least one light emitting element.
在本发明的一实施例中，上述的导光板具有第一凸出部以及第二凸出部。第一凸出部以及第二凸出部凸出于导光板的侧面，且所述至少一导光条位于第一凸出部与第二凸出部之间。In an embodiment of the present invention, the above-mentioned light guide plate has a first protruding portion and a second protruding portion. The first protrusion and the second protrusion protrude from the side of the light guide plate, and the at least one light guide strip is located between the first protrusion and the second protrusion.
在本发明的一实施例中，上述的背光模块还包括反射件。反射件包覆所述至少一导光条、第一凸出部以及第二凸出部。In an embodiment of the present invention, the above-mentioned backlight module further includes a reflector. The reflector covers the at least one light guide strip, the first protruding part and the second protruding part.
在本发明的一实施例中，上述的至少一导光条的外表面形成有反射层，且所述至少一导光条通过黏着层与导光板接合。In an embodiment of the present invention, the outer surface of the at least one light guide strip is formed with a reflective layer, and the at least one light guide strip is bonded to the light guide plate through an adhesive layer.
在本发明的一实施例中，上述的背光模块还包括遮光层。遮光层形成在所述至少一光学膜片的内缘。In an embodiment of the present invention, the above-mentioned backlight module further includes a light-shielding layer. The light shielding layer is formed on the inner edge of the at least one optical film.
基于上述，本发明实施例的穿戴式显示装置利用背光模块提供显示所需的光源。此外，通过导光微结构的区域密度设计提升自背光模块射出的面光源的均匀性。因此，穿戴式显示装置可具有低价优势及良好的显示质量。Based on the above, the wearable display device of the embodiment of the present invention uses the backlight module to provide the light source required for display. In addition, the uniformity of the surface light source emitted from the backlight module is improved through the area density design of the light guide microstructure. Therefore, the wearable display device can have the advantages of low price and 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，并配合所示附图作详细说明如下。In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.
附图说明Description of drawings
图1A是依照本发明的一实施例的一种穿戴式显示装置的剖面示意图；FIG. 1A is a schematic cross-sectional view of a wearable display device according to an embodiment of the present invention;
图1B是依照本发明的一实施例的一种穿戴式显示装置的爆炸图；FIG. 1B is an exploded view of a wearable display device according to an embodiment of the present invention;
图2是图1A中光源及导光板的另一实施型态的上视示意图；FIG. 2 is a schematic top view of another embodiment of the light source and the light guide plate in FIG. 1A;
图3是图1A中背光膜组的另一实施型态的局部示意图。FIG. 3 is a partial schematic view of another embodiment of the backlight film set in FIG. 1A .
附图标记说明：Explanation of reference signs:
10：穿戴式显示装置；10: Wearable display device;
12：显示面板；12: display panel;
14：背光模块；14: backlight module;
16：中心转轴；16: central shaft;
18：指针；18: pointer;
141、141A：导光板；141, 141A: light guide plate;
142：光源；142: light source;
143：光学膜片；143: optical film;
144：反射片；144: reflective sheet;
145：导光条；145: light guide strip;
146：反射件；146: reflector;
161：端部；161: end;
181：时针；181: hour hand;
182：分针；182: minute hand;
1421：发光元件；1421: light emitting element;
1422：电路板；1422: circuit board;
1431：第一扩散片；1431: a first diffuser;
1432：第一棱镜片；1432: the first prism sheet;
1433：第二棱镜片；1433: the second prism sheet;
1434：第二扩散片；1434: second diffuser;
MS：导光微结构；MS: light guiding microstructure;
O：开口；O: open;
P1：第一凸出部；P1: first protrusion;
P2：第二凸出部；P2: second protrusion;
RC：容置孔；RC: receiving hole;
S141B、S141T：表面；S141B, S141T: surface;
S141S、S141AS：侧面；S141S, S141AS: side;
T1、T2、T3、T4：贯孔。T1, T2, T3, T4: through holes.
具体实施方式detailed description
图1A是依照本发明的一实施例的一种穿戴式显示装置的剖面示意图。图1B是依照本发明的一实施例的一种穿戴式显示装置的爆炸图。图2是图1A中光源及导光板的另一实施型态的上视示意图。图3是图1A中背光膜组的另一实施型态的局部示意图。FIG. 1A is a schematic cross-sectional view of a wearable display device according to an embodiment of the present invention. FIG. 1B is an exploded view of a wearable display device according to an embodiment of the present invention. FIG. 2 is a schematic top view of another embodiment of the light source and the light guide plate in FIG. 1A . FIG. 3 is a partial schematic view of another embodiment of the backlight film set in FIG. 1A .
请先参照图1A及图1B，穿戴式显示装置10包括显示面板12、背光模块14、中心转轴16以及至少一指针18。背光模块14与显示面板12相对且包括导光板141、光源142以及至少一光学膜片143。导光板141具有多个导光微结构MS。导光微结构MS位于导光板141背对显示面板12的表面S141B，其中导光微结构MS在导光板141的周围区域的密度小于导光微结构MS在导光板141的中心区域的密度。光源142包括至少一发光元件1421。所述至少一发光元件1421位于导光板141的侧面S141S(参照图1A)。所述至少一光学膜片143位于导光板141与显示面板12之间，其中显示面板12、导光板141以及所述至少一光学膜片143分别具有贯孔T1、T2、T3，且显示面板12、导光板141以及所述至少一光学膜片143的贯孔T1、T2、T3彼此连通而形成容置孔RC。中心转轴16位于容置孔RC中，且中心转轴16靠近显示面板12的端部161凸出于容置孔RC。所述至少一指针18与中心转轴16的端部161耦接，且中心转轴16作为所述至少一指针18的旋转中心。举例而言，所述至少一指针18可包括时针181及分针182，但不以此为限。Please refer to FIG. 1A and FIG. 1B first. The wearable display device 10 includes a display panel 12 , a backlight module 14 , a central rotating shaft 16 and at least one pointer 18 . The backlight module 14 is opposite to the display panel 12 and includes a light guide plate 141 , a light source 142 and at least one optical film 143 . The light guide plate 141 has a plurality of light guide microstructures MS. The light guide microstructures MS are located on the surface S141B of the light guide plate 141 facing away from the display panel 12 , wherein the density of the light guide microstructures MS in the peripheral area of the light guide plate 141 is smaller than the density of the light guide microstructures MS in the central area of the light guide plate 141 . The light source 142 includes at least one light emitting element 1421 . The at least one light emitting element 1421 is located on the side surface S141S of the light guide plate 141 (refer to FIG. 1A ). The at least one optical film 143 is located between the light guide plate 141 and the display panel 12, wherein the display panel 12, the light guide plate 141 and the at least one optical film 143 respectively have through holes T1, T2, T3, and the display panel 12 The through holes T1 , T2 , T3 of the light guide plate 141 and the at least one optical film 143 communicate with each other to form the accommodating hole RC. The central rotating shaft 16 is located in the accommodating hole RC, and the end 161 of the central rotating shaft 16 close to the display panel 12 protrudes out of the accommodating hole RC. The at least one pointer 18 is coupled to the end 161 of the central rotating shaft 16 , and the central rotating shaft 16 serves as a rotation center of the at least one pointer 18 . For example, the at least one pointer 18 may include an hour hand 181 and a minute hand 182 , but not limited thereto.
穿戴式显示装置10通过显示面板12而可具有图像显示功能。显示面板12可依需求而被开启(提供图像画面)或被关闭(未提供图像画面)。当显示面板12被开启时，背光模块14中的光源142可同时被开启，以提供显示所需的光源。举例而言，显示面板12是液晶面板，但不以此为限。The wearable display device 10 can have an image display function through the display panel 12 . The display panel 12 can be turned on (providing an image frame) or off (not providing an image frame) as required. When the display panel 12 is turned on, the light source 142 in the backlight module 14 can be turned on at the same time to provide the light source required for display. For example, the display panel 12 is a liquid crystal panel, but not limited thereto.
背光模块14可以是侧边入光式背光模块，以降低穿戴式显示装置10的整体厚度。在背光模块14中，所述至少一发光元件1421用于提供显示所需的光束。所述至少一发光元件1421例如是发光二极管，但不以此为限。光束通过导光板141的侧面S141S进入导光板141中。进入导光板141的光束通过全反射而传递于导光板141中。导光微结构MS用于破坏全反射，使光束自导光板141面向显示面板12的表面S141T射出。举例而言，导光微结构MS可以是凹入于导光板141的沟槽(如图1A及图1B所示)或是凸出于导光板141的网点(未示出)，但不以此为限。沟槽及网点的形状及其分布可视需求调整，而不限于图1A及图1B所示。The backlight module 14 may be a side-illuminated backlight module to reduce the overall thickness of the wearable display device 10 . In the backlight module 14, the at least one light emitting element 1421 is used to provide light beams required for display. The at least one light emitting element 1421 is, for example, a light emitting diode, but not limited thereto. The light beam enters the light guide plate 141 through the side surface S141S of the light guide plate 141 . The light beam entering the light guide plate 141 is transmitted in the light guide plate 141 through total reflection. The light guide microstructure MS is used to destroy the total reflection, so that the light beam is emitted from the surface S141T of the light guide plate 141 facing the display panel 12 . For example, the light guide microstructure MS may be a groove recessed in the light guide plate 141 (as shown in FIG. 1A and FIG. 1B ) or a dot (not shown) protruding from the light guide plate 141, but not limit. The shape and distribution of the grooves and dots can be adjusted according to the needs, and are not limited to those shown in FIG. 1A and FIG. 1B .
通过导光微结构MS的区域密度设计，可调变导光板141各区域的出光量，使自背光模块14射出的面光源的亮度较为均匀。进一步而言，所述至少一发光元件1421配置在导光板141的侧面S141S，因此导光板141中的光能量分布由周围区域朝中心区域递减。通过使导光微结构MS在导光板141的周围区域的密度小于导光微结构MS在导光板141的中心区域的密度，可降低周围区域的出光量，并使大部分光束朝导光板141的中心区域传递且自中心区域射出导光板141。如此，有助于缩减周围区域与中心区域的亮度差异，并提升自背光模块14射出的面光源的均匀性。Through the area density design of the light guide microstructure MS, the amount of light output from each area of the light guide plate 141 can be adjusted, so that the brightness of the surface light source emitted from the backlight module 14 is relatively uniform. Furthermore, the at least one light emitting element 1421 is disposed on the side surface S141S of the light guide plate 141 , so the light energy distribution in the light guide plate 141 gradually decreases from the surrounding area to the central area. By making the density of the light guide microstructure MS in the surrounding area of the light guide plate 141 smaller than the density of the light guide microstructure MS in the central area of the light guide plate 141, the amount of light emitted from the surrounding area can be reduced, and most of the light beams can be directed towards the light guide plate 141. The central area transmits and exits the light guide plate 141 from the central area. In this way, it is helpful to reduce the brightness difference between the surrounding area and the central area, and improve the uniformity of the surface light source emitted from the backlight module 14 .
在本实施例中，导光微结构MS在邻近所述至少一发光元件1421的密度例如为每平方毫米15个至每平方毫米20个，且导光微结构MS在导光板141的中心区域的密度例如为每平方毫米20个至每平方毫米25个。此外，各导光微结构MS的最大粒径例如为30微米至50微米。In this embodiment, the density of the light guide microstructure MS adjacent to the at least one light emitting element 1421 is, for example, 15 to 20 per square millimeter, and the density of the light guide microstructure MS in the central area of the light guide plate 141 The density is, for example, 20 to 25 per square millimeter. In addition, the maximum particle size of each light guide microstructure MS is, for example, 30 microns to 50 microns.
除了所述至少一发光元件1421，光源142可进一步包括电路板1422，以供电至所述至少一发光元件1421。所述至少一发光元件1421配置在电路板1422上。背光模块14可进一步包括反射片144，以通过将射出表面S141B的光束反射回导光板141中来提升光的利用率。反射片144位于导光板141与电路板1422之间，且反射片144具有至少一开口O。所述至少一发光元件1421通过所述至少一开口O而配置在导光板141的侧面S141S。除了开口O之外，反射片144还可具有贯孔T4。贯孔T4与贯孔T1、T2、T3彼此连通，以利配置中心转轴16。Besides the at least one light emitting element 1421 , the light source 142 may further include a circuit board 1422 for supplying power to the at least one light emitting element 1421 . The at least one light emitting element 1421 is configured on the circuit board 1422 . The backlight module 14 may further include a reflective sheet 144 to improve light utilization by reflecting the light emitted from the surface S141B back into the light guide plate 141 . The reflective sheet 144 is located between the light guide plate 141 and the circuit board 1422 , and the reflective sheet 144 has at least one opening O. As shown in FIG. The at least one light emitting element 1421 is disposed on the side surface S141S of the light guide plate 141 through the at least one opening O. In addition to the opening O, the reflective sheet 144 may also have a through hole T4. The through hole T4 communicates with the through holes T1 , T2 , T3 to facilitate the arrangement of the central shaft 16 .
由于光束传递至导光板141的贯孔T2后会被中心转轴16阻挡而无法传递至对向侧，因此为避免中心转轴16的附近产生局部暗区，本实施例设置多个发光元件1421，且发光元件1421对称排列在导光板141的侧面S141S。在本实施例中，所述至少一发光元件1421的数量是2个，但不以此为限。在其他实施例中，所述至少一发光元件1421的数量也可以是3个或3个以上。Since the light beam is transmitted to the through hole T2 of the light guide plate 141, it will be blocked by the central rotating shaft 16 and cannot be transmitted to the opposite side. Therefore, in order to avoid local dark areas near the central rotating shaft 16, multiple light emitting elements 1421 are provided in this embodiment, and The light emitting elements 1421 are symmetrically arranged on the side surface S141S of the light guide plate 141 . In this embodiment, the number of the at least one light emitting element 1421 is two, but not limited thereto. In other embodiments, the number of the at least one light emitting element 1421 may also be 3 or more.
在另一实施例中，如图2所示，背光模块14也可包括至少一导光条145。所述至少一导光条145围绕导光板141，且所述至少一导光条145的两端分别指向所述至少一发光元件1421。导光条145可以是任何适于配置在导光板141的侧面S141S且能够导光的结构，如光纤，但不以此为限。In another embodiment, as shown in FIG. 2 , the backlight module 14 may also include at least one light guide bar 145 . The at least one light guide strip 145 surrounds the light guide plate 141 , and the two ends of the at least one light guide strip 145 respectively point to the at least one light emitting element 1421 . The light guide strip 145 can be any structure suitable for being disposed on the side surface S141S of the light guide plate 141 and capable of guiding light, such as an optical fiber, but not limited thereto.
来自所述至少一发光元件1421的光束通过所述至少一导光条145的两端入射进所述至少一导光条145，并可通过全反射而传递于所述至少一导光条145中。在不满足全反射条件的情况下，传递于所述至少一导光条145中的光束有机会射进导光板141中。换句话说，所述至少一导光条145的设置等效于在导光板141的侧面S141S设置多个发光元件1421。在此架构下，可降低发光元件1421的数量，而更省电。The light beam from the at least one light-emitting element 1421 enters the at least one light guide bar 145 through both ends of the at least one light guide bar 145, and can be transmitted in the at least one light guide bar 145 through total reflection . If the total reflection condition is not satisfied, the light beam transmitted in the at least one light guide strip 145 may enter the light guide plate 141 . In other words, the disposition of the at least one light guide strip 145 is equivalent to disposing a plurality of light emitting elements 1421 on the side surface S141S of the light guide plate 141 . Under this framework, the number of light-emitting elements 1421 can be reduced to save more power.
在又一实施例中，如图3所示，导光板141A可具有第一凸出部P1以及第二凸出部P2。第一凸出部P1以及第二凸出部P2凸出于导光板141A的侧面S141AS，且所述至少一导光条145位于第一凸出部P1与第二凸出部P2之间。在本实施例中，背光模块14可进一步包括反射件146。反射件146包覆所述至少一导光条145、第一凸出部P1以及第二凸出部P2，以通过将射出所述至少一导光条145的光束朝导光板141A反射来提升光的利用率。在另一实施例中，所述至少一导光条145的外表面可形成有反射层，且所述至少一导光条145可通过黏着层(未示出)与导光板141A接合。如此，可省略反射件146的设置。形成反射层的方法可以是镀金属膜或是涂布反射涂料，但不以此为限。In yet another embodiment, as shown in FIG. 3 , the light guide plate 141A may have a first protruding portion P1 and a second protruding portion P2 . The first protruding portion P1 and the second protruding portion P2 protrude from the side surface S141AS of the light guide plate 141A, and the at least one light guide bar 145 is located between the first protruding portion P1 and the second protruding portion P2. In this embodiment, the backlight module 14 may further include a reflector 146 . The reflector 146 covers the at least one light guide strip 145, the first protruding portion P1 and the second protruding portion P2, so as to enhance the light beam by reflecting the light beam exiting the at least one light guide strip 145 toward the light guide plate 141A. utilization rate. In another embodiment, the outer surface of the at least one light guide strip 145 may be formed with a reflective layer, and the at least one light guide strip 145 may be bonded to the light guide plate 141A through an adhesive layer (not shown). In this way, the setting of the reflector 146 can be omitted. The method of forming the reflective layer may be metal coating or reflective coating, but not limited thereto.
请再参照图1A及图1B，所述至少一光学膜片143适于改变光能量分布或进一步提升面光源的均匀性。举例而言，所述至少一光学膜片143可包括第一扩散片1431、第一棱镜片1432、第二棱镜片1433以及第二扩散片1434，其中第一扩散片1431以及第二扩散片1434适于提升面光源的均匀性，而第一棱镜片1432以及第二棱镜片1433适于提供集光增亮的效果。第一扩散片1431、第一棱镜片1432、第二棱镜片1433以及第二扩散片1434例如依序堆叠在导光板141与显示面板12之间，然而，所述至少一光学膜片143的数量及种类不限于上述。Please refer to FIG. 1A and FIG. 1B again, the at least one optical film 143 is suitable for changing the light energy distribution or further improving the uniformity of the surface light source. For example, the at least one optical film 143 may include a first diffusion sheet 1431, a first prism sheet 1432, a second prism sheet 1433 and a second diffusion sheet 1434, wherein the first diffusion sheet 1431 and the second diffusion sheet 1434 It is suitable for improving the uniformity of the surface light source, and the first prism sheet 1432 and the second prism sheet 1433 are suitable for providing the effect of light collection and brightness enhancement. The first diffusing sheet 1431, the first prism sheet 1432, the second prism sheet 1433 and the second diffusing sheet 1434 are, for example, sequentially stacked between the light guide plate 141 and the display panel 12, however, the number of the at least one optical film 143 And the types are not limited to the above.
在一实施例中，为避免传递至贯孔T2的光束在容置孔RC形成亮纹而影响穿戴式显示装置10的视觉效果，背光模块14可进一步包括遮光层(未示出)。遮光层可以形成在所述至少一光学膜片143的内缘。举例而言，遮光层可以形成在最顶层的光学膜片143(如第二扩散片1434)的内缘或是形成在最底层的光学膜片143(如第一扩散片1431)的内缘，但不以此为限。此外，遮光层可以是盖套、遮光的胶带或涂料等。In one embodiment, in order to prevent the light beam transmitted to the through hole T2 from forming bright streaks in the accommodating hole RC and affecting the visual effect of the wearable display device 10 , the backlight module 14 may further include a light shielding layer (not shown). The light shielding layer may be formed on the inner edge of the at least one optical film 143 . For example, the light-shielding layer can be formed on the inner edge of the topmost optical film 143 (such as the second diffusion sheet 1434) or on the inner edge of the bottommost optical film 143 (such as the first diffusion sheet 1431), But not limited to this. In addition, the light-shielding layer may be a cover, light-shielding tape or paint, or the like.
综上所述，本发明实施例的穿戴式显示装置利用背光模块提供显示所需的光源。此外，通过导光微结构的区域密度设计提升背光模块出光的均匀性。因此，穿戴式显示装置可具有低价优势及良好的显示质量。在一实施例中，背光模块还可通过光纤的设置来降低发光元件的数量并达到省电的需要。To sum up, the wearable display device according to the embodiment of the present invention uses the backlight module to provide the light source required for display. In addition, the uniformity of light output from the backlight module is improved through the area density design of the light guide microstructure. Therefore, the wearable display device can have the advantages of low price and good display quality. In one embodiment, the backlight module can also reduce the number of light-emitting elements and achieve power saving through the arrangement of optical fibers.
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105107867 | 2016-03-15 | ||
| TW105107867ATWI572945B (en) | 2016-03-15 | 2016-03-15 | Wearable display device |
| Publication Number | Publication Date |
|---|---|
| CN107193155Atrue CN107193155A (en) | 2017-09-22 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710090351.XAPendingCN107193155A (en) | 2016-03-15 | 2017-02-20 | Wearable Display Device |
| Country | Link |
|---|---|
| CN (1) | CN107193155A (en) |
| TW (1) | TWI572945B (en) |
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