WO2016015381A1 - 显示装置 - Google Patents

显示装置 Download PDF

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Publication number
WO2016015381A1
WO2016015381A1 PCT/CN2014/088086 CN2014088086W WO2016015381A1 WO 2016015381 A1 WO2016015381 A1 WO 2016015381A1 CN 2014088086 W CN2014088086 W CN 2014088086W WO 2016015381 A1 WO2016015381 A1 WO 2016015381A1
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WO
WIPO (PCT)
Prior art keywords
light
display panel
guide plate
display
light source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2014/088086
Other languages
English (en)
French (fr)
Inventor
于杨冰
胡巍浩
尹大根
廖燕平
邵喜斌
郭瑞
赵卫杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd, Beijing BOE Display Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US14/769,240 priority Critical patent/US10012788B2/en
Publication of WO2016015381A1 publication Critical patent/WO2016015381A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
    • G02B3/0068—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between arranged in a single integral body or plate, e.g. laminates or hybrid structures with other optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features

Definitions

  • Embodiments of the invention relate to a display device.
  • Dual view display technology is a technology that can display two different pieces of information on the same display device.
  • the application fields of dual-view display technology are more and more extensive, such as car display devices, drivers can navigate, and people in the co-pilot position can watch videos; for example, home TV, parents watching news, children watching cartoons, etc.
  • At least one embodiment of the present invention provides a display device capable of achieving a naked eye double vision display.
  • At least one embodiment of the present invention provides a display device including a display panel, a light guide plate, a first light source, and a second light source; the display panel is provided with a plurality of pixel units distributed in an array; the light guide plate is located at the a light incident side of the display panel, wherein the light guide plate has a first reflection mechanism and a second reflection mechanism; the first reflection mechanism directs light emitted by the first light source to the pixel unit of the display panel, and the light is worn After the display panel is directed to the first viewing side, the second reflecting mechanism directs the light emitted by the second light source to the pixel unit of the display panel, and the light passes through the display panel and is guided to the second viewing side.
  • a side of the light guide plate facing away from the display panel forms a plurality of first reflective surfaces and a plurality of second reflective surfaces, and the first reflective surface and the second reflective surface are spaced apart;
  • the first reflecting surface forms the first reflecting mechanism, and each of the second reflecting surfaces forms the second reflecting mechanism.
  • the plurality of pixel units of the display panel include a plurality of columns of even-numbered column pixel units and a plurality of columns of odd-numbered columns of pixel units arranged in a row direction; a first reflective surface formed by the light guide plate and the display The odd-numbered column pixel units of the panel are in one-to-one correspondence, and each of the first reflective surfaces directs light emitted by the first light source to its corresponding odd-numbered column pixel unit; the second reflective surface formed by the light guide plate and the display panel One-to-one correspondence of even-numbered column pixel units, each of the second reflecting surfaces The light emitted by the second source is directed to its corresponding even column of pixel units.
  • one of the opposite two sides of the light guide plate forms the first light incident surface, and the other side forms the second light incident surface, and each side surface and the display panel
  • the column direction of the pixel unit is parallel and perpendicular to the light incident surface of the display panel; the first light source is located on a side of the first light incident surface of the light guide plate, and the second light source is located at a side of the light guide plate Two into the glossy side.
  • the light guide plate forms a plurality of microstructure prism grooves away from the side of the display panel, and the length direction of each of the microstructure prism grooves is parallel to the column direction in the pixel unit in the display panel;
  • Each of the microstructured prism grooves has one of the first reflecting surface and one of the second reflecting surfaces.
  • the refractive index n of the light guide plate is 1.49 to 1.53; in a direction perpendicular to the display panel, the depth h of each of the microstructure prism grooves satisfies: 10 ⁇ m ⁇ h ⁇ 50 ⁇ m; each micro In the structural prism groove, an angle ⁇ between the first reflecting surface and the second reflecting surface is 110 degrees to 130 degrees.
  • the first light source comprises a plurality of LED lamps and a reflecting device, the reflecting device having a reflective cavity having an opening facing the light guide plate and an inner surface being curved; each of the LED lamps is located at the At the central axis of the reflective cavity, and the direction of illumination of each of the LED lamps faces away from the opening of the reflective cavity.
  • the display device further includes a dual view display refraction film between the light guide plate and the display panel; wherein: the dual view display refraction film faces the light guide plate Forming a plurality of first refractive surfaces on one side surface to introduce light that is reflected by the first reflective surface and deriving the light guide plate into the dual view display refraction film; the dual view display refraction film facing the light guide plate Forming a plurality of second refractive surfaces on one side surface to introduce light that is reflected by the second reflective surface and leading the light guide plate into the dual view display refractive film; the dual view display refractive film faces the display One side surface of the panel forms a plurality of arcuate protrusions arranged along the row direction of the pixel unit in the display panel; along the row direction in the pixel unit in the display panel, the width of each of the arcuate protrusions is greater than And being equal to the width of the pixel unit; the light reflected by each of the first reflecting surfaces is introduced into the dual pixel display ref
  • a projection of an intersection of any two adjacent arcuate protrusions on the display panel coincides with a center line of a column of pixel units, each of the arcs
  • the diameter of the convex curved surface is greater than or equal to the width of the pixel unit; each pixel unit has at least three sub-pixel units, and the curved convex curved surface along the row direction of the display panel pixel unit
  • the center line is offset from the top corner of the triangular protrusion by the width of at least one sub-pixel unit.
  • an angle between any adjacent first refractive surface and second refractive surface is between 100 degrees and 120 degrees.
  • 1 is a schematic structural diagram of a display device of a dual view display mode
  • FIG. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a light guide plate in a display device according to the present invention.
  • FIG. 4 is a schematic structural diagram of a display device according to another embodiment of the present invention.
  • FIG. 5 is a schematic view showing a relative position between a double-view display refractive film and a display panel in the display device of the structure shown in FIG. 4;
  • FIG. 6 is a schematic structural diagram of a first light source in a display device according to an embodiment of the present invention.
  • FIG. 1 is a display device having a dual view display function.
  • the dual view display device includes a display panel 10, a video stream mixing device 20 on the light incident side of the display panel 10, and a polarization modulation device 30 on the light emitting side of the display panel 10.
  • the observer needs to watch the full-time display full-time job
  • At least two glasses, such as glasses 40 and glasses 50, are required.
  • the glasses 40 are set to be left-polarized glasses, and the glasses 50 are right-polarized glasses.
  • the display panel 10 periodically switches according to the video stream input from the video stream mixing device 20 to the display panel 10, or arrays are spaced apart to display two kinds of pictures.
  • the polarization direction of the polarization modulating device 30 is the same as the polarization direction of the glasses 40, the user wearing the glasses 40 can view a picture displayed by the display panel, and when the polarization direction of the polarization modulating device 30 is the same as the polarization direction of the glasses 50, The user of the glasses 50 can view another screen displayed by the display panel.
  • the display device realizes the double vision effect, different users must wear different glasses to achieve the naked eye double vision.
  • FIG. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • the display device provided by the embodiment of the present invention includes a display panel 4, a light guide plate 1, a first light source 2, and a second light source 3.
  • the display panel 4 is provided with a plurality of pixel units distributed in an array, such as pixel units 41 and pixel units 42 which are alternately arranged.
  • the first light source 2 emits light and the second light source 3 is turned off within one frame time; in another frame time, the second light source 3 emits light, and the first light source 2 is turned off.
  • the light guide plate 1 is located on the light incident side of the display panel 4, and the light guide plate 1 has a first reflection mechanism and a second reflection mechanism.
  • the first reflecting mechanism guides the light emitted by the first light source 2 to the pixel unit of the display panel 4, and the light passes through the display panel 4 and is guided to the first viewing side, as shown in FIG. 2, and the second reflecting mechanism is second.
  • the light emitted by the light source 3 is directed to the pixel unit of the display panel 4, and the light passes through the display panel 4 and is guided to the second viewing side, as shown in the A side of FIG.
  • the first light source 2 When the display device performs display, for any adjacent two frames of display time, the first light source 2 emits light within one frame time, the second light source 3 is turned off, and the first reflecting mechanism of the light guide plate 1 can be at the first light source.
  • the light emitted the light emitted by the first light source 2 is directed to the pixel unit of the display panel 4, and the light is directed to the first observation side after passing through the display panel 4, so that the viewer on the first viewing side can view the frame time.
  • the second light source 3 emits light, the first light source 2 is turned off, and the second reflecting mechanism guides the light emitted by the second light source 3 to the pixel unit of the display panel 4, and passes the light through the display panel 4 to the second observation side, and second
  • the viewer on the observation side can view the screen displayed by the display panel 4 during the frame time, correspondingly at this time, since the first light source 2 is turned off, the viewer on the first viewing side is now What is seen is a black frame of the display panel 4.
  • the above display device can realize the naked eye double vision by the first reflection mechanism, the second reflection mechanism, and the control of the first light source 2 and the second light source 3 provided by the light guide plate, without wearing special glasses.
  • the light guide plate 1 of this embodiment has a first reflecting mechanism and a second reflecting mechanism, which are specifically described below.
  • a plurality of first reflective surfaces 11 and a plurality of second reflective surfaces 12 are formed on a side of the light guide plate 1 facing away from the display panel 4, and the first reflective surface 11 and the second reflective surface 12 are spaced apart; each of the first reflective surfaces 11 forms a first The reflecting mechanism, each of the second reflecting surfaces 12 forms a second reflecting mechanism.
  • the plurality of pixel units of the display panel 4 of the embodiment include a plurality of columns of even-numbered column pixel units 42 and a plurality of columns of odd-numbered columns of pixel units 41 arranged in the row direction; a first reflective surface formed by the light guide plate 1 11 is in one-to-one correspondence with the odd-numbered column pixel units 41 of the display panel 4, and each of the first reflecting surfaces 11 directs the light emitted by the first light source 2 to its corresponding odd-numbered column pixel unit 41; the second reflecting surface formed by the light guiding plate 1 12 corresponds one-to-one with the even-numbered column pixel units 42 of the display panel 4, and each of the second reflecting surfaces 12 directs the light emitted by the second light source 3 to its corresponding even-numbered column pixel unit 42.
  • the display device of the above configuration according to the embodiment of the present invention can realize the naked eye double vision display.
  • one of the opposite side faces of the light guide plate 1 forms a first light incident surface
  • the other side forms a second light incident surface
  • each side surface is
  • the column direction of the pixel unit of the display panel 4 is parallel and perpendicular to the light incident surface of the display panel 4.
  • the first light source 2 is located on the first light incident surface side of the light guide plate 1
  • the second light source 3 is located on the second light incident surface side of the light guide plate 1 .
  • the arrangement of the first light source 2 and the second light source 3 corresponds to the first reflecting surface 11 and the second reflecting surface 12.
  • a plurality of microstructure prism grooves are formed on the side of the light guide plate 1 away from the display panel 4, and the length direction of each of the microstructure prism grooves is parallel to the column direction in the pixel unit in the display panel 4;
  • the microstructured prismatic trench has a first reflective surface 11 and a second reflective surface 12.
  • the refractive index n of the light guide plate 1 is 1.49 to 1.53, such as 1.49, 1.50, 1.51, 1.53, etc.; and as shown in FIG. 3, in a direction perpendicular to the display panel 4. , the depth h of each microstructured prism groove satisfies: 10 ⁇ m ⁇ h ⁇ 50 ⁇ m, such as 10 ⁇ m, 15 ⁇ m, 20 ⁇ m, 30 ⁇ m, 35 ⁇ m, 40 ⁇ m, 45 ⁇ m, 50 ⁇ m, etc.;
  • the angle ⁇ is from 110 degrees to 130 degrees, such as 110 degrees, 115 degrees, 120 degrees, 125 degrees, and 130 degrees.
  • the first light source 2 includes a plurality of LED lamps 22 and a reflecting device 21, and the reflecting device 21 has a reflecting cavity whose opening faces the light guide plate 1 and whose inner surface is curved.
  • Each LED lamp 22 is located at a central axis of the reflecting cavity of the reflecting device 21, and the direction of illumination of each of the LED lamps 22 faces away from the opening of the reflecting cavity.
  • the light emitted by each of the LED lamps 22 is reflected by the inner surface of the reflective cavity to form a parallel light source, so that the first light source 2 is a parallel light source, so that the first light source 2
  • the emitted light strikes the same angle on the first reflecting surface 11 of each microstructure prism.
  • the second light source 3 can also have the above structure, and details are not described herein again.
  • a display device further includes a dual view display refraction film 5 , and the dual view display refraction film 5 is located between the light guide plate 1 and the display panel 4 .
  • the double-view display refractive film 5 forms a plurality of first refractive surfaces 51 toward one surface of the light guide plate 1, and the light that is reflected by the first reflective surface 11 and then led out of the light guide plate 1 is introduced into the dual-view display refractive film 5;
  • a plurality of second refractive surfaces 52 are formed on the side surface of the display refractive film 5 facing the light guide plate 1, and light emitted from the second reflective surface 12 and then guided out of the light guide plate 1 is introduced into the double-view display refractive film 5;
  • the film 5 faces a side surface of the display panel 4 to form a plurality of arcuate projections 53 arranged along the row direction of the pixel unit in the display panel 4; each of the arcuate projections 53 along the row direction in the pixel unit in the display panel 4
  • the width is greater than or equal to the width of the pixel unit.
  • each of the first reflecting surfaces 11 is introduced into the double-view display refractive film 5 through the first refractive surface 51, refracted by the curved protrusions 53 and introduced into the corresponding pixel unit, and each second reflecting surface 13 is reflected.
  • the light is introduced into the double-view display refractive film 5 through the second refractive surface 52, is refracted by the curved protrusions 53, and is introduced into the corresponding pixel unit.
  • the dual-view display refraction film 5 can converge the light emitted from the first reflective surface 11 and the second reflective surface 12 of the light guide plate 1 and then led out of the light guide plate 1 into the corresponding pixel unit, thereby enabling The crosstalk phenomenon when the display device performs dual view display is reduced, and the display effect when the display device performs dual view display is improved.
  • each The diameter of the curved surface of one curved protrusion 53 is greater than or equal to the width of the pixel unit; each pixel unit There are at least three sub-pixel units, as shown in FIG.
  • each pixel unit has three sub-pixel units, and along the row direction of the pixel unit of the display panel 4, the center of the curved surface of the curved protrusion 53
  • the misalignment width d between the line 62 and the triangular raised apex line 63 is the width of at least one sub-pixel unit.
  • the display device of the above configuration when the first light source 2 emits light, the light reflected by each of the first reflecting surfaces 11 enters each column of pixel units, and when the second light source 3 emits light, the second reflecting surfaces 12 are reflected. Light enters each column of pixel units; therefore, in the display device of the above configuration, when the viewers of the first viewing side and the second viewing side can view the pattern, all the pixel units in the display panel 4 are used for display, improving The resolution of the display panel 4 when displaying the screen viewed on the first viewing side and the screen displayed on the second viewing side.
  • an angle ⁇ between any adjacent first refractive surface and second refractive surface is from 100 degrees to 120 degrees.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种显示装置包括显示面板（4）、导光板（1）、第一光源（2）和第二光源（3）。显示面板（4）设有阵列分布的多个像素单元（41，42）。导光板（1）具有第一反射机构（11）和第二反射机构（12）。第一反射机构（11）将第一光源（2）发射的光线导向显示面板（4）的像素单元（41）且光线穿过显示面板（4）后导向第一观察侧（B）；第二反射机构（12）将第二光源（3）发射的光线导向显示面板（4）的像素单元（42）且光线穿过显示面板（4）后导向第二观察侧（A）。显示装置能够实现裸眼双视显示，而无需佩戴专门的眼镜。

Description

显示装置 技术领域
本发明的实施例涉及一种显示装置。
背景技术
双视显示技术是一种能够在同一台显示装置上显示两种不同信息内容的技术。双视显示技术的应用领域越来越广泛，例如车载显示仪，司机看可以导航，副驾驶位置上的人可以看视频；例如家庭电视，家长看新闻，孩子看动画片等。
发明内容
本发明的至少一个实施例提供了一种显示装置，该显示装置能够实现裸眼双视显示。
本发明的至少一个实施例提供了一种显示装置，包括显示面板、导光板、第一光源和第二光源；所述显示面板设有阵列分布的多个像素单元；所述导光板位于所述显示面板的入光侧，且所述导光板具有第一反射机构和第二反射机构；所述第一反射机构将所述第一光源发射的光线导向所述显示面板的像素单元、且光线穿过所述显示面板后导向第一观察侧；所述第二反射机构将所述第二光源发射的光线导向所述显示面板的像素单元、且光线穿过所述显示面板后导向第二观察侧。
在一个实施例中，所述导光板背离所述显示面板的一侧形成多个第一反射面和多个第二反射面，所述第一反射面和第二反射面间隔设置；各所述第一反射面形成所述第一反射机构，各所述第二反射面形成所述第二反射机构。
在一个实施例中，所述显示面板的多个像素单元包括沿行方向间隔排列的多列偶数列像素单元和多列奇数列像素单元；所述导光板形成的第一反射面与所述显示面板的奇数列像素单元一一对应，且每一个所述第一反射面将第一光源发射的光线导向其对应的奇数列像素单元；所述导光板形成的第二反射面与所述显示面板的偶数列像素单元一一对应，每一个所述第二反射面 将第二光源发射的光线导向其对应的偶数列像素单元。
在一个实施例中，所述导光板中相对的两个侧面中，一个侧面形成所述第一入光面，另一个侧面形成所述第二入光面，且每一个侧面与所述显示面板的像素单元的列方向平行、且与所述显示面板入光面垂直；所述第一光源位于所述导光板的第一入光面一侧，所述第二光源位于所述导光板的第二入光面一侧。
在一个实施例中，所述导光板背离所述显示面板的侧面形成多个微结构棱镜槽，每一个所述微结构棱镜槽的长度方向与所述显示面板中像素单元内的列方向平行；每一个微结构棱镜槽具有一个所述第一反射面和一个所述第二反射面。
在一个实施例中，所述导光板折射率n为1.49～1.53；沿垂直于所述显示面板的方向，每一个所述微结构棱镜槽的深度h满足：10μm≤h≤50μm；每一个微结构棱镜槽中，所述第一反射面与所述第二反射面之间所呈角度α为110度～130度。
在一个实施例中，所述第一光源包括多个LED灯和反射装置，所述反射装置具有开口朝向所述导光板、且内表面为弧形的反射腔；每一个所述LED灯位于所述反射腔的中心轴线处，且每一个LED灯的发光方向背离所述反射腔的开口。
在一个实施例中，该显示装置还包括双视显示折射膜，所述双视显示折射膜位于所述导光板和所述显示面板之间；其中：所述双视显示折射膜朝向导光板的一侧表面形成多个第一折射面、以将经所述第一反射面反射后导出所述导光板的光线导入所述双视显示折射膜内；所述双视显示折射膜朝向导光板的一侧表面形成多个第二折射面、以将经所述第二反射面反射后导出所述导光板的光线导入所述双视显示折射膜内；所述双视显示折射膜朝向所述显示面板的一侧表面形成沿所述显示面板内像素单元的行方向排列的多个弧形凸起；沿所述显示面板内像素单元内的行方向，每一个所述弧形凸起的宽度大于等于所述像素单元的宽度；每一个所述第一反射面反射后的光线通过第一折射面导入所述双视显示折射膜后经过所述弧形凸起折射后导入相应的像素单元内，且每一个第二反射面反射后的光线通过第二折射面导入所述双视显示折射膜后经过所述弧形凸起折射后导入相应的像素单元内。
在一个实施例中，沿所述显示面板像素单元的行方向，任意相邻的两个弧形凸起的交线在显示面板上的投影与一列像素单元的中心线重合，每一个所述弧形凸起的弧形面的直径大于等于像素单元的宽度；每个像素单元具有至少三个亚像素单元，且沿所述显示面板像素单元的行方向，所述弧形凸起的弧形面的中心线与所述三角形凸起的顶角线错位至少一个亚像素单元的宽度。
在一个实施例中，所述双视显示折射膜中，任意相邻的第一折射面与第二折射面之间所呈角度为100度～120度。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。
图1为一种双视显示模式的显示装置的原理结构示意图；
图2为本发明一种实施例中提供的显示装置的结构示意图；
图3为本发明提供的显示装置中导光板的结构示意图；
图4为本发明另一种实施例提供的显示装置的结构示意图；
图5为图4所示结构的显示装置中双视显示折射膜与显示面板之间相对位置示意图；
图6为本发明一种实施例提供的显示装置中第一光源的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
图1为一种具有双视显示功能的显示装置。如图1所示，该双视显示装置包括：显示面板10、位于显示面板10入光侧的视频流混编装置20、位于显示面板10出光侧的偏振调制装置30。观察者在观看该双视显示专职时需 要至少两幅眼镜，如眼镜40和眼镜50。为便于描述，设定眼镜40为左偏振眼镜，眼镜50为右偏振眼镜。
显示面板10根据视频流混编装置20向显示面板10输入的视频流周期性切换，或阵列区域性间隔，以显示两种画面。当偏振调制装置30的偏振方向与眼镜40的偏振方向相同时，佩戴眼镜40的用户可以观看显示面板显示的一种画面，当偏振调制装置30的偏振方向与眼镜50的偏振方向相同时，佩戴眼镜50的用户可以观看显示面板显示的另一种画面。但是，该显示装置在实现双视效果时，必须使不同的使用者佩戴不同的眼镜才能实现，不能实现裸眼双视。
图2为本发明一种实施例中提供的显示装置的结构示意图。如图2所示，本发明实施例提供的显示装置包括：显示面板4、导光板1、第一光源2和第二光源3。
显示面板4设有按阵列分布的多个像素单元，如交替排布的像素单元41和像素单元42。这里，对于任意相邻的两帧显示时间，在一帧时间内，第一光源2发光，第二光源3关闭；在另一帧时间内，第二光源3发光，第一光源2关闭。导光板1位于显示面板4的入光侧，且导光板1具有第一反射机构和第二反射机构。第一反射机构将第一光源2发射的光线导向显示面板4的像素单元、且光线穿过显示面板4后导向第一观察侧，如图2所示的B侧；第二反射机构将第二光源3发射的光线导向显示面板4的像素单元、且光线穿过显示面板4后导向第二观察侧，如图2所示的A侧。
上述显示装置在进行显示时，对于任意相邻的两帧显示时间，在一帧时间内，第一光源2发光，第二光源3关闭，导光板1具有的第一反射机构能够在第一光源2发光时将第一光源2发射的光线导向显示面板4的像素单元，并使光线在穿过显示面板4后射向第一观察侧，使第一观察侧的观看者能够观看此帧时间内显示面板4显示的一种画面，对应地在此时，由于第二光源3关闭，第二观察侧的观看者此时看到的是显示面板4的一帧黑画面；在另一帧时间内，第二光源3发光，第一光源2关闭，第二反射机构将第二光源3发射的光线导向显示面板4的像素单元，并且使光线穿过显示面板4后导向第二观察侧，第二观察侧的观看者能够观看到显示面板4在此帧时间内显示的画面，对应地在此时，由于第一光源2关闭，第一观察侧的观看者此时 看到的是显示面板4的一帧黑画面。
因此，上述显示装置能够通过导光板设置的第一反射机构、第二反射机构以及对第一光源2和第二光源3的控制实现裸眼双视，无需佩戴专门的眼镜。
请继续参考图2，该实施例的导光板1具有第一反射机构和第二反射机构，具体说明如下。导光板1背离显示面板4的一侧形成多个第一反射面11和多个第二反射面12，第一反射面11和第二反射面12间隔设置；各第一反射面11形成第一反射机构，各第二反射面12形成第二反射机构。
请继续参考图2，该实施例的显示面板4的多个像素单元包括沿行方向间隔排列的多列偶数列像素单元42和多列奇数列像素单元41；导光板1形成的第一反射面11与显示面板4的奇数列像素单元41一一对应，且每一个第一反射面11将第一光源2发射的光线导向其对应的奇数列像素单元41；导光板1形成的第二反射面12与显示面板4的偶数列像素单元42一一对应，每一个第二反射面12将第二光源3发射的光线导向其对应的偶数列像素单元42。
本发明实施例的上述结构的显示装置能够实现裸眼双视显示。
如图2和图3所示，一个优选实施例中，导光板1中相对的两个侧面中，一个侧面形成第一入光面，另一个侧面形成第二入光面，且每一个侧面与显示面板4的像素单元的列方向平行且与显示面板4入光面垂直。第一光源2位于导光板1的第一入光面一侧，第二光源3位于导光板1的第二入光面一侧。第一光源2和第二光源3的设置方式对应于第一反射面11和第二反射面12。
如图2和图3所示，导光板1背离显示面板4的侧面形成多个微结构棱镜槽，每一个微结构棱镜槽的长度方向与显示面板4中像素单元内的列方向平行；每一个微结构棱镜槽具有一个第一反射面11和一个第二反射面12。
在一个实施例中，在上述导光板1中，导光板1的折射率n为1.49～1.53，如1.49、1.50、1.51、1.53等；且如图3所示，沿垂直于显示面板4的方向，每一个微结构棱镜槽的深度h满足：10μm≤h≤50μm，如10μm、15μm、20μm、30μm、35μm、40μm、45μm、50μm等；
例如，每一个微结构棱镜槽中，第一反射面11与第二反射面12之间所 呈角度α为110度～130度，如110度、115度、120度、125度、130度。
如图6所示，在上述实施例的基础上，例如，第一光源2包括多个LED灯22和反射装置21，反射装置21具有开口朝向导光板1、且内表面为弧形的反射腔；每一个LED灯22位于反射装置21反射腔的中心轴线处，且每一个LED灯22的发光方向背离反射腔的开口。
如图6所示，第一光源2的上述结构中，每一个LED灯22发射的光线被反射腔的内表面反射后形成平行光源，进而使第一光源2为平行光源，使第一光源2发出的光线照射到每一个微结构棱镜的第一反射面11上的角度相同。
同理，第二光源3也可以具有上述结构，这里不再赘述。
请参考图4，本发明的一个实施例提供的显示装置还包括双视显示折射膜5，双视显示折射膜5位于导光板1和显示面板4之间。
例如，双视显示折射膜5朝向导光板1的一侧表面形成多个第一折射面51，将经第一反射面11反射后导出导光板1的光线导入双视显示折射膜5内；双视显示折射膜5朝向导光板1的一侧表面形成多个第二折射面52，将经第二反射面12反射后导出导光板1的光线导入双视显示折射膜5内；双视显示折射膜5朝向显示面板4的一侧表面形成沿显示面板4内像素单元的行方向排列的多个弧形凸起53；沿显示面板4内像素单元内的行方向，每一个弧形凸起53的宽度大于等于像素单元的宽度。每一个第一反射面11反射后的光线通过第一折射面51导入双视显示折射膜5后经过弧形凸起53折射后导入相应的像素单元内，且每一个第二反射面13反射后的光线通过第二折射面52导入双视显示折射膜5后经过弧形凸起53折射后导入相应的像素单元内。
如图4所示，双视显示折射膜5能够将导光板1中的每一个第一反射面11和第二反射面12发射后导出导光板1的光线汇聚到相应的像素单元中，因此能够减小显示装置进行双视显示时的串光现象，提高显示装置进行双视显示时的显示效果。
例如，如图5所示，沿显示面板4像素单元的行方向，任意相邻的两个弧形凸起53的交线在显示面板4上的投影与一列像素单元的中心线61重合，每一个弧形凸起53的弧形面的直径大于等于像素单元的宽度；每个像素单元 具有至少三个亚像素单元，如图5中所示，例如，每个像素单元具有三个亚像素单元，且沿显示面板4像素单元的行方向，弧形凸起53的弧形面的中心线62与三角形凸起的顶角线63之间的错位宽度d为至少一个亚像素单元的宽度。
上述结构的显示装置中，可以使第一光源2发光时，各第一反射面11反射的光线进入每一列像素单元中，且可以使第二光源3发光时，各第二反射面12反射的光线进入每一列像素单元中；因此，上述结构的显示装置中，第一观察侧和第二观察侧的观看者能够观看到图案时，显示面板4中的所有的像素单元均用于显示，提高了显示面板4在显示第一观察侧观看的画面和第二观察侧显示的画面时的分辨率。
在本发明的一个优选实施例中，在双视显示折射膜中，任意相邻的第一折射面与第二折射面之间所呈角度β为100度～120度。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本申请要求于2014年7月31日递交的中国专利申请第201410373743.3号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (11)

  1. 一种显示装置，包括：显示面板、导光板、第一光源和第二光源；其中：
    所述显示面板设有阵列分布的多个像素单元；
    所述导光板位于所述显示面板的入光侧，且所述导光板具有第一反射机构和第二反射机构；
    所述第一反射机构设置来将所述第一光源发射的光线导向所述显示面板的像素单元、且光线穿过所述显示面板后导向第一观察侧；所述第二反射机构设置来将所述第二光源发射的光线导向所述显示面板的像素单元、且光线穿过所述显示面板后导向第二观察侧。
  2. 根据权利要求1所述的显示装置，其中，所述导光板背离所述显示面板的一侧形成多个第一反射面和多个第二反射面，所述第一反射面和第二反射面间隔设置；各所述第一反射面形成所述第一反射机构，各所述第二反射面形成所述第二反射机构。
  3. 根据权利要求2所述的显示装置，其中，所述显示面板的多个像素单元包括沿行方向间隔排列的多列偶数列像素单元和多列奇数列像素单元；
    所述导光板形成的第一反射面与所述显示面板的奇数列像素单元一一对应，且每一个所述第一反射面将第一光源发射的光线导向其对应的奇数列像素单元；
    所述导光板形成的第二反射面与所述显示面板的偶数列像素单元一一对应，每一个所述第二反射面将第二光源发射的光线导向其对应的偶数列像素单元。
  4. 根据权利要求2所述的显示装置，其中，所述导光板中相对的两个侧面中，一个侧面形成所述第一入光面，另一个侧面形成所述第二入光面，且每一个侧面与所述显示面板的像素单元的列方向平行且与所述显示面板入光面垂直；
    所述第一光源位于所述导光板的第一入光面一侧，所述第二光源位于所述导光板的第二入光面一侧。
  5. 根据权利要求4所述的显示装置，其中，所述导光板背离所述显示面 板的侧面形成多个微结构棱镜槽，每一个所述微结构棱镜槽的长度方向与所述显示面板中像素单元内的列方向平行；
    每一个微结构棱镜槽具有一个所述第一反射面和一个所述第二反射面。
  6. 根据权利要求5所述的显示装置，其中，所述导光板折射率n为1.49～1.53；
    沿垂直于所述显示面板的方向，每一个所述微结构棱镜槽的深度h满足：10μm≤h≤50μm；
    每一个微结构棱镜槽中，所述第一反射面与所述第二反射面之间所呈角度α为110度～130度。
  7. 根据权利要求6所述的显示装置，其中，所述第一光源包括多个LED灯和反射装置，所述反射装置具有开口朝向所述导光板且内表面为弧形的反射腔；
    每一个所述LED灯位于所述反射腔的中心轴线处，且每一个LED灯的发光方向背离所述反射腔的开口。
  8. 根据权利要求2～7任一项所述的显示装置，还包括双视显示折射膜，所述双视显示折射膜位于所述导光板和所述显示面板之间；其中：
    所述双视显示折射膜朝向导光板的一侧表面形成多个第一折射面、以将经所述第一反射面反射后导出所述导光板的光线导入所述双视显示折射膜内；
    所述双视显示折射膜朝向导光板的一侧表面形成多个第二折射面、以将经所述第二反射面反射后导出所述导光板的光线导入所述双视显示折射膜内；
    所述双视显示折射膜朝向所述显示面板的一侧表面形成沿所述显示面板内像素单元的行方向排列的多个弧形凸起；沿所述显示面板内像素单元内的行方向，每一个所述弧形凸起的宽度大于等于所述像素单元的宽度；
    每一个所述第一反射面反射后的光线通过第一折射面导入所述双视显示折射膜后经过所述弧形凸起折射后导入相应的像素单元内，且每一个第二反射面反射后的光线通过第二折射面导入所述双视显示折射膜后经过所述弧形凸起折射后导入相应的像素单元内。
  9. 根据权利要求8所述的显示装置，其中，沿所述显示面板像素单元的 行方向，任意相邻的两个弧形凸起的交线在显示面板上的投影与一列像素单元的中心线重合，每一个所述弧形凸起的弧形面的直径大于等于像素单元的宽度；
    每个像素单元具有至少三个亚像素单元，且沿所述显示面板像素单元的行方向，所述弧形凸起的弧形面的中心线与所述三角形凸起的顶角线错位至少一个亚像素单元的宽度。
  10. 根据权利要求9所述的显示装置，其中，所述双视显示折射膜中，任意相邻的第一折射面与第二折射面之间所呈角度为100度～120度。
  11. 根据权利要求1～10任一所述的显示装置，其中，所述第一光源和第二光源中，对任意相邻的两帧显示时间，在一帧时间内，所述第一光源发光，所述第二光源关闭；在另一帧时间内，所述第二光源发光，所述第一光源关闭。
PCT/CN2014/088086 2014-07-31 2014-10-01 显示装置 Ceased WO2016015381A1 (zh)

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KR102698293B1 (ko) 2018-11-27 2024-08-23 삼성전자주식회사 디스플레이 장치 및 제조 방법
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