WO2014127586A1 - 双视场显示基板和显示装置 - Google Patents

双视场显示基板和显示装置 Download PDF

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Publication number
WO2014127586A1
WO2014127586A1 PCT/CN2013/074810 CN2013074810W WO2014127586A1 WO 2014127586 A1 WO2014127586 A1 WO 2014127586A1 CN 2013074810 W CN2013074810 W CN 2013074810W WO 2014127586 A1 WO2014127586 A1 WO 2014127586A1
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WIPO (PCT)
Prior art keywords
display
substrate
view
angle
display unit
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PCT/CN2013/074810
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English (en)
French (fr)
Inventor
周振东
赵扬
Original Assignee
京东方科技集团股份有限公司
北京京东方茶谷电子有限公司
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.)
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Application filed by 京东方科技集团股份有限公司, 北京京东方茶谷电子有限公司 filed Critical 京东方科技集团股份有限公司
Priority to JP2015557317A priority Critical patent/JP6510426B2/ja
Priority to US14/360,853 priority patent/US9360674B2/en
Priority to EP13852367.5A priority patent/EP2960960A4/en
Priority to KR1020147014344A priority patent/KR20140113903A/ko
Publication of WO2014127586A1 publication Critical patent/WO2014127586A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1066—Beam splitting or combining systems for enhancing image performance, like resolution, pixel numbers, dual magnifications or dynamic range, by tiling, slicing or overlapping fields of view
    • 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
    • G02B27/02—Viewing or reading apparatus
    • G02B27/06—Viewing or reading apparatus with moving picture effect
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
    • G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
    • G02B30/36—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using refractive optical elements, e.g. prisms, in the optical path between the images and the observer
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/349—Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/85—Arrangements for extracting light from the devices
    • H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/875—Arrangements for extracting light from the devices
    • H10K59/879—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/791—Starburst compounds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N2013/40—Privacy aspects, i.e. devices showing different images to different viewers, the images not being viewpoints of the same scene
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N2013/40—Privacy aspects, i.e. devices showing different images to different viewers, the images not being viewpoints of the same scene
    • H04N2013/403—Privacy aspects, i.e. devices showing different images to different viewers, the images not being viewpoints of the same scene the images being monoscopic
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/128—Active-matrix OLED [AMOLED] displays comprising two independent displays, e.g. for emitting information from two major sides of the display

Definitions

  • Embodiments of the present invention relate to a dual field of view display substrate and display device. Background technique
  • Dual field of view display refers to the display technology that allows different images to be seen on the front sides of a display (such as the left and right sides).
  • the existing dual field of view display is mainly realized by using a grating; as shown in FIG. 1, a slit grating 9 is disposed in front of the display screen 10, and the display screen 10 includes a first display area 511 and a second display area 512 which are alternately arranged;
  • the slit grating 9 includes alternating light shielding strips and light-transmitting strips; due to the action of the slit grating 9, only the partial display area of the display screen can be seen in the left viewing area 81 on the left side of the screen (including a plurality of first display areas) 511)
  • the displayed image, the right view area 82 on the right side of the screen can only see the image displayed by another part of the display area of the display screen (including the plurality of second display areas 512).
  • a crosstalk area 83 Between the left view area 81 and the right view area 82 is a crosstalk area 83, where the images displayed by the first display area 511 and the second display area 512 can be seen at the same time, so that the displayed information cannot be normally received; the first display area 511.
  • the second display area 512 is alternately arranged and has a plurality of display units respectively.
  • dual field of view display can be achieved by the display screen 10 and the slit grating 9 described above.
  • the stereoscopic display viewing area corresponds to the crosstalk area 83 in the dual view display, so the stereoscopic display can be regarded as a special dual field of view display. .
  • the dual field of view display is realized by a slit grating, but the structure of the slit grating is complicated and complicated, difficult to manufacture, and high in cost, and the slit grating is slightly deviated from the position of the display area to affect Double view effect.
  • the embodiments of the present invention are directed to the problem that the existing dual field of view display technology has a complicated structure, high cost, and poor effect, and provides a display substrate with a simple structure, low cost, and good double vision effect.
  • One aspect of the present invention provides a dual field of view display substrate including a substrate on the substrate
  • the first display area and the second display area are arranged alternately, and the first display area and the second display area are respectively provided with display units, and the main light-out directions of the display units of the first display areas are the same
  • the main light emitting directions of the display units of the second display areas are consistent and correspond to only the second display areas. Second viewing zone.
  • the "main light exit direction" of the display unit means that although the light of the display unit has a certain divergence angle, most of the light is concentrated in one direction, and is generally emitted in the vertical direction of the display unit.
  • the main light-emitting directions of the display units respectively disposed in the first display area and the second display area are different, so that the user can separately view the display substrate on different side views of the display substrate.
  • the image displayed by the first display area and the second display area as a whole can realize the double field of view display without using the slit grating, and the structure is simple, the cost is low, and the double view effect is good.
  • the substrate includes a plurality of ribs, the rib has a first display unit carrying portion and a second display unit carrying portion, and the first display unit carrying portion is configured to set a display unit of the first display area, The second display unit carrying portion is configured to set a display unit of the second display area.
  • the plurality of ribs are arranged in parallel.
  • the surface of the first display unit bearing portion forms a first angle with the normal direction of the display substrate in a counterclockwise direction
  • the carrier portion is along the clockwise direction
  • the normal direction of the display substrate forms a second angle
  • the first angle and the second angle are not 90 degrees at the same time.
  • the "normal direction of the display substrate” refers to a direction perpendicular to the surface of the substrate of the display substrate, the normal direction of the region where the first display region is located is uniform, and the normal direction of the region where the second display region is located is uniform.
  • the rib has a cross section of an isosceles triangle, and the two waists of the isosceles triangle correspond to the first display unit carrying portion and the second display unit carrying portion of the rib, that is, the first angle And the second angle is equal.
  • the first angle and the second angle are both 45 degrees.
  • the cross section of the rib is a right-angled trapezoid
  • the upper base and the oblique waist of the right-angled trapezoid correspond to the first display unit carrying portion and the second display unit carrying portion of the rib, that is, the first clip One of the angle and the second angle is 90 degrees.
  • the substrate also includes a shaped layer, the rib being disposed in the shaped layer.
  • the embodiments of the present invention are directed to the problem that the existing dual field of view display technology has a complicated structure, high cost, and poor effect, and provides a dual field of view display device with a structural unit, a low cost, and a good double vision effect.
  • Another aspect of the present invention provides a dual field of view display device comprising the dual field of view display substrate described above.
  • the dual field of view display device of the present invention includes the above-described dual field of view display substrate, the structure is simple, low in cost, and good in double viewing effect.
  • the dual field of view display device further includes an encapsulation layer formed on the dual field of view display substrate.
  • the encapsulation layer has a flat surface.
  • FIG. 1 is a schematic diagram of a conventional dual field of view display through a slit grating
  • FIG. 2 is a plan view of a dual field of view display substrate according to Embodiment 1 of the present invention.
  • FIG. 3 is a partial cross-sectional view showing a dual field of view display substrate according to Embodiment 1 of the present invention
  • FIG. 4 is a partial cross-sectional view showing another dual field of view display substrate according to Embodiment 1 of the present invention
  • Fig. 6 is a partial cross-sectional view of the dual field of view display device of Embodiment 2 of the present invention.
  • Fig. 2 is a plan view showing a dual field of view display substrate of the first embodiment.
  • the embodiment provides a dual field of view display substrate 100 including a substrate 5 (see FIG. 3 ), and the substrate 5 is provided with a plurality of strips alternately arranged along the horizontal direction in the drawing.
  • the first display area 511 and the second display area 512 are respectively provided with a plurality of display units 6 in each of the first display area 511 and the second display area 512.
  • the display unit 6 is shown schematically in blocks.
  • the main light-emitting directions of the display unit 6 in each of the first display areas 511 are identical and correspond to a first view area (for example, the left side in FIG. 3) in which only the first display areas 511 can be seen, and each of the second display areas 512
  • the main light exiting direction of the display unit is uniform and corresponds to a second viewing zone (for example, the right side in FIG. 3) in which only the second display area 512 can be seen.
  • a surface of the substrate in the region where the first display region 511 is located forms a first angle a with a direction of a normal line (dashed line in FIG. 3) of the display substrate in a counterclockwise direction, and the region where the second display region 512 is located
  • the substrate surface forms a second angle ⁇ with the normal direction of the display substrate in a clockwise direction.
  • the first angle ⁇ and the second angle ⁇ are both greater than 0 degrees and not 90 degrees at the same time; that is, the first display area 511 and the second display area 512 are oriented differently.
  • first display area 511 and the second display area 512 are both elongated (for example, extending from one side of the array substrate to the other side in the longitudinal direction or the lateral direction), and are alternately arranged.
  • First display The area 511 and the second display area 512 may correspond to the plurality of columns (rows) of display units 6, respectively.
  • Each display unit 6 can work independently for display, and can correspond to one pixel (or sub-pixel, a plurality of sub-pixels (such as RGB sub-pixels) of the display substrate to form one pixel).
  • each display unit 6 may include an organic light emitting diode and a corresponding driving circuit.
  • the drive circuit can be composed of a switching transistor, a driving transistor, and a storage capacitor.
  • each display unit 6 may include a pixel electrode, a common electrode, an electronic ink layer, and a corresponding driving circuit.
  • the substrate 5 should also be provided with circuit structures such as gate lines and data lines, for example, the gate lines are arranged laterally, and the data lines are arranged longitudinally, which will not be described in detail herein.
  • the first display area 511 and the second display area 512 are oriented differently (ie, the normals of the surface of the portion where they are located face different directions), respectively in the first display area 511 and the second display area 512.
  • the light emitted by the display unit 6 is directed to different directions, and their main light-emitting directions are different.
  • the side display of the dual field of view display substrate can respectively see the images displayed by the first display area and the second display area, thereby eliminating the need to use a slit grating. In this way, it is only necessary to overcome the viewing problem caused by the inaccuracy of the alignment of the slit grating and the display substrate when the display base is used, and the double viewing effect is good.
  • Figure 3 is a partial cross-sectional view of a dual field of view display substrate of Embodiment 1, such as a cross-sectional view taken along line A-A.
  • the substrate 5 includes a plurality of ribs 7 arranged in parallel, and the plurality of ribs 7 have a first display unit carrying portion 71 and a second display unit carrying portion 72, respectively corresponding to the first display.
  • the first display unit carrying portion 71 is for a display unit 6 on which the first display area 511 is disposed
  • the second display unit carrying portion 72 is used for the display unit 6 on which the second display area 512 is disposed.
  • a surface of the first display unit carrying portion 71 forms a first angle a with a normal direction of the display substrate (a broken line in FIG. 3) in a counterclockwise direction, and the second display unit 7
  • the surface forms a second angle ⁇ with the normal direction of the display substrate in a clockwise direction.
  • the first angle ⁇ and the second angle ⁇ are both greater than 0 degrees and not 90 degrees, that is, the first display area and the second display area are oriented differently. It can be seen that, by the structure of the ribs 7, the surface of the substrate 5 can be divided into two groups of different orientations, and the division of the first display area 511 and the second display area 512 can be realized.
  • the "normal direction of the display substrate” refers to a direction that is perpendicular to the bottom surface of the display substrate as a whole, rather than the normal line of the partial region where the first display region is located or the normal direction of the portion where the second display region is located. .
  • the cross section of the rib is an isosceles triangle
  • the two waists of the isosceles triangle correspond to the first display unit carrying portion 71 and the second display unit carrying portion 72 of the rib
  • the first An angle ⁇ is equal to the second angle ⁇ .
  • the first angle ⁇ and the second angle ⁇ are both 45 degrees.
  • the double viewing effect is best when the orientations of the first display area 511 and the second display area 512 are in a certain relationship. If the first angle ⁇ and the second angle ⁇ are both close to 90 degrees, that is, the substrate orientation of the region 511 where the first display region is located and the substrate orientation of the region where the second display region 512 is located are nearly parallel, and are perpendicular to the normal direction of the substrate. Then, the images of the first display area 511 and the second display area 512 are mixed in a large range, the crosstalk area is large, and the area of the double view can be too small.
  • first angle ⁇ and the second angle ⁇ are both close to 0 degrees, that is, the substrate orientation of the region 511 where the first display region is located and the substrate orientation of the region where the second display region 512 is located are nearly parallel, and parallel to the normal direction of the substrate.
  • the position difference between the two viewing zones is too large, and the viewing is inconvenient.
  • the light emitted by the display unit on the first display area 511 and the second display area 512 is also easily blocked by the adjacent ribs 7, which affects the display effect. .
  • the first angle ⁇ and the second angle ⁇ are both 45 degrees, which makes the viewing effect better.
  • the ribs 7 are bilaterally symmetrical about the center plane thereof, so that the first display area 511 and the second display area 512 can be respectively seen at the same position on both sides of the village bottom 5, as shown in FIG.
  • the crosstalk area is reduced or even disappeared, thus conforming to the general double vision habit.
  • the cross section of the rib 7 is a right-angled trapezoid, and the upper base and the oblique waist of the right-angled trapezoid correspond to the first display unit carrying portion 71 and the second display unit carrying portion 72 of the rib 7, that is, One of the first angle and the second angle is 90 degrees.
  • Fig. 4 is a partial cross-sectional view showing another dual field of view display substrate of the first embodiment.
  • the cross section of the rib 7 is a right-angled trapezoid, and the upper base and the oblique waist of the right-angled trapezoid correspond to the two sides of the rib, that is, the first angle ⁇ is not 90 degrees.
  • the second angle ⁇ is 90 degrees.
  • the first angle ⁇ is 90 degrees
  • the second angle ⁇ is not 90 degrees.
  • first display area 511 and the second display area 512 can also be realized by setting the village bottom 5 into other forms as long as they make the first display area 511 and the second display area 512 respectively Different directions are available and will not be described in detail here.
  • the ribs 7 are formed as part of the substrate 5, the substrate 5 comprises an array of display units 6 and the like, and the display unit 6 or its light-emitting surface is disposed at the ribs. On both sides.
  • Fig. 5 is a partial cross-sectional view showing still another dual field of view display substrate of the first embodiment.
  • the substrate 5 includes a base layer 53 and a molding layer 52, and the molding layer 52 is processed to have ribs 7.
  • the base layer 53 is usually formed using a glass substrate or a plastic substrate.
  • the substrate 5 further includes an array of display units 6 and the like, a display driving circuit structure, and the like, and the display unit 6 or its light emitting surface is disposed on the first display unit carrying portion 71 and the second display unit carrying portion 72 on both sides of the rib 7.
  • a molding layer 52 is formed on the surface of the base layer 53.
  • the forming layer 52 is preferably formed of a resin or other material that is easy to process.
  • the process of forming the ribs is complicated, and the processing of the forming layer 52 by the known processes such as the printing process or the photolithography process to form the ribs 7 is relatively simple. After the forming layer 52 and the ribs 7 therein are formed. For example, a display unit 6 corresponding to the first display area 511 and the second display area 512 is then formed on the molding layer 52.
  • the method of forming display unit 6 can be implemented in a manner known in the art.
  • the display substrate is an OLED display substrate
  • various functional layers of the organic light emitting diode, a driving circuit structure, and the like can be formed by deposition, photolithography, or the like.
  • two deposition or patterning masks A and B may be formed, corresponding to the first display area and the second display area, respectively.
  • TFT thin film transistor
  • an electronic ink display film may be separately prepared, and then the display film is bonded to the surface of the molding layer 52, and the display film is conformed to the molding layer 52, and has a light output.
  • the ribs 7 are formed by a printing process or a photolithography process using a two-tone mask. That is, the forming layer 52 having the rib structure 7 can be directly formed by a printing process, The post-forming layer 52 is bonded, for example, to the surface of the substrate 5. Alternatively, the completed molding layer 52 may be formed first, and then the molding layer 52 is processed to form the ribs 7 by a photolithography process using a two-tone mask.
  • the two-tone mask also known as the gray mask, can achieve different degrees of etching on different positions of the film to form the rib 7 structure.
  • the embodiment provides a dual field of view display device comprising the above described dual field of view display substrate.
  • the dual field of view display device of the embodiment includes the dual field of view display substrate described above, the structure is simple, the cost is low, and the double view effect is good.
  • the dual field of view display device further includes an encapsulation layer formed on the dual field of view display substrate
  • the encapsulation layer 4 closes the surface of the dual field of view display substrate, and since the upper surface thereof is flat, the surface of the dual field of view display device is flat, thereby preventing the structure of the rib 7 and the display unit 6 from being affected. damage.
  • the encapsulation layer 4 can be formed by a known method, material, or the like.
  • the encapsulation layer 4 can be formed by coating a resin material on the surface of the display substrate 100 and then planarizing it, and thus will not be described in detail herein.
  • the dual field of view display device of this embodiment may further include other known structures such as a power source, a driving chip, a frame, and the like, and will not be described in detail herein.

Abstract

一种双视场显示基板（100）和显示装置。该双视场显示基板（100）包括衬底（5），衬底（5）上设有交替排列的第一显示区（511）和第二显示区（512），第一显示区（511）和第二显示区（512）上分别设有显示单元（6），各第一显示区（511）各显示单元（6）的主出光方向一致并对应于只能看到各第一显示区（511）的第一视区（81），各第二显示区（512）各显示单元（6）的主出光方向一致并对应于只能看到各第二显示区（512）的第二视区（83）。

Description

双视场显示基板和显示装置 技术领域
本发明的实施例涉及一种双视场显示基板和显示装置。 背景技术
双视场显示是指在一个显示屏前两侧 (如左右两侧)可看到不同图像的显 示技术。
现有的双视场显示主要是利用光栅实现的； 如图 1 所示， 在显示屏 10 前设置狭缝光栅 9,显示屏 10包括交替排列的第一显示区 511和第二显示区 512; 狭缝光栅 9包括交替排列的遮光条和透光条； 由于狭缝光栅 9的作用， 在屏幕左侧的左视区 81只能看到显示屏的部分显示区（包括多个第一显示区 511)显示的图像， 在屏幕右侧的右视区 82只能看到显示屏的另一部分显示 区（包括多个第二显示区 512)显示的图像。 在左视区 81、 右视区 82之间为 串扰区 83 ,在这里可同时看到第一显示区 511和第二显示区 512显示的图像， 导致不能正常接收显示的信息； 第一显示区 511、 第二显示区 512交替排列， 并分别具有多个显示单元。 由此，通过上述显示屏 10和狭缝光栅 9可实现双 视场显示。
由于立体显示需要同时看到第一显示区 511和第二显示区 512, 那么立 体显示观看区对应于双视显示中的串扰区 83 , 因此立体显示可以被视为一种 特殊的双视场显示。
上述至少存在如下问题： 该双视场显示是通过狭缝光栅实现的， 但狭缝 光栅的结构复杂精细、 难以制造、 成本高， 且只要狭缝光栅与显示区的位置 稍有偏差即会影响双视效果。 发明内容
本发明的实施例针对现有的双视场显示技术结构复杂、 成本高、 效果不 好的问题， 提供一种结构筒单、 成本低、 双视效果好的显示基板。
本发明的一个方面提供了一种双视场显示基板， 包括衬底， 所述衬底上 设有交替排列的第一显示区和第二显示区， 所述第一显示区和所述第二显示 区中分别设有显示单元， 所述各第一显示区各显示单元的主出光方向一致并 对应于只能看到所述各第一显示区的第一视区， 所述各第二显示区各显示单 元的主出光方向一致并对应于只能看到所述各第二显示区的第二视区。
显示单元的 "主出光方向" 指的是显示单元的光虽然具有一定的发散角 度， 但大部分的光都是集中于一个方向出射， 一般为显示单元的垂直方向出 光。
本发明的双视场显示基板中， 第一显示区和第二显示区中分别设有的显 示单元的主出光方向不同， 这样用户在显示基板的不同侧向观看即可分别看 到显示基板上第一显示区和第二显示区整体显示的图像， 从而在不使用狭缝 光栅的情况下即可实现双视场显示的效果， 结构筒单、成本低、双视效果好。
例如， 所述衬底包括多条凸棱， 所述凸棱具有第一显示单元承载部和第 二显示单元承载部， 所述第一显示单元承载部用于设置第一显示区的显示单 元， 所述第二显示单元承载部用于设置第二显示区的显示单元。
例如， 所述多条凸棱平行设置。
例如， 所述第一显示单元承载部表面沿着逆时针方向与所述显示基板的 法线方向形成第一夹角， 所述第二显示单元 7|载部表面沿着顺时针方向与所 述显示基板的法线方向形成第二夹角， 所述第一夹角和所述第二夹角不同时 为 90度。
"显示基板的法线方向" 指的是垂直于显示基板的衬底表面的方向， 所 述第一显示区所在区域的法线方向一致， 第二显示区所在区域的法线方向一 致。
例如， 所述凸棱的横截面为等腰三角形， 所述等腰三角形的两腰与所述 凸棱的第一显示单元承载部和第二显示单元承载部对应， 即所述第一夹角和 所述第二夹角相等。
进一步例如， 所述凸棱为横截面为等腰三角形时， 所述第一夹角和第二 夹角均为 45度。
例如， 所述凸棱的横截面为直角梯形， 所述直角梯形的上底和斜腰与所 述凸棱的第一显示单元承载部和第二显示单元承载部对应， 即所述第一夹角 和所述第二夹角中有一为 90度。 例如， 所述村底还包括成型层， 所述凸棱设置在所述成型层中。
本发明的实施例针对现有的双视场显示技术结构复杂、 成本高、 效果不 好的问题， 提供一种结构筒单、 成本低、 双视效果好的双视场显示装置。
本发明的另一个方面提供了了一种双视场显示装置， 其包括上述的双视 场显示基板。
由于本发明的双视场显示装置包括上述的双视场显示基板， 故其结构筒 单、 成本低、 双视效果好。
例如， 所述双视场显示装置还包括形成在所述双视场显示基板上的封装 层。 例如， 该封装层具有平坦的表面。 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 筒单地介绍，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为现有的通过狭缝光栅实现双视场显示的原理图；
图 2为本发明的实施例 1的双视场显示基板的俯视图；
图 3为本发明的实施例 1的一种双视场显示基板的局部剖视图； 图 4为本发明的实施例 1的另一种双视场显示基板的局部剖视图； 图 5为本发明的实施例 1的又一种双视场显示基板的局部剖视图； 图 6为本发明的实施例 2的双视场显示装置的局部剖视图。
附图标记：
4、 封装层； 5、 村底； 511、 第一显示区； 512、 第二显示区； 52、 成型 层； 53、 基层； 6、 显示单元； 7、 凸棱； 71、 第一显示单元承载部； 72、 第 二显示单元承载部； 81、 左视区； 82、 右视区； 83、 串扰区； 9、 狭缝光栅； 100、 显示基板。 α、 第一夹角； β、 第二夹角。 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。
除非另作定义， 此处使用的技术术语或者科学术语应当为本发明所属领 域内具有一般技能的人士所理解的通常意义。 "第一" 、 "第二" 以及类似 的词语并不表示任何顺序、 数量或者重要性， 而只是用来区分不同的组成部 分。 "一个" 、 "一" 、 "该" 等类似词语也不表示数量限制， 而是表示存 在至少一个。 "包括" 或者 "包含" 等类似的词语意指出现在 "包括" 或者 "包含" 前面的元件或者物件涵盖出现在 "包括" 或者 "包含" 后面列举的 元件或者物件及其等同， 并不排除其他元件或者物件。 "连接"或者 "相连" 等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接， 不管是直接的还是间接的。 "上" 、 "下" 、 "左" 、 "右" 等仅用于表示 相对位置关系， 当被描述对象的绝对位置改变后， 则该相对位置关系也可能 相应地改变。
实施例 1 :
图 2为实施例 1的双视场显示基板的俯视图。 如图 1所示， 本实施例提 供一种双视场显示基板 100, 其包括衬底 5 (参见图 3 ) , 所述衬底 5上设有 多个沿图中横向交替排列的长条状的第一显示区 511和第二显示区 512, 所 述第一显示区 511和所述第二显示区 512每个中分别设有多个显示单元 6。 显示单元 6以方块示意性示出。
各第一显示区 511中的显示单元 6的主出光方向一致并对应于只能看到 各第一显示区 511的第一视区 （例如在图 3中左侧） ， 各第二显示区 512的 显示单元的主出光方向一致并对应于只能看到各第二显示区 512的第二视区 (例如在图 3中右侧） 。
所述第一显示区 511所在区域的衬底表面沿着逆时针方向与所述显示基 板的法线（图 3中的虚线）方向形成第一夹角 a , 所述第二显示区 512所在 区域的衬底表面与所述显示基板的法线方向沿着顺时针方向形成第二夹角 β。所述第一夹角 α和所述第二夹角 β均大于 0度且不同时为 90度； 即所述 第一显示区 511和所述第二显示区 512朝向不同。
通常而言， 第一显示区 511和第二显示区 512均为长条状（例如沿纵向 方向或横向方向从阵列基板的一侧延伸到另一侧） ， 且交替排列。 第一显示 区 511和第二显示区 512可以分别对应多列（行)显示单元 6。而每个显示单元 6可分别独立工作以进行显示， 并可对应显示基板的一个像素 (或子像素， 多 个子像素（如 RGB子像素）构成一个像素)。
显示单元 6的具体结构可采用已知形式实现。 例如， 当本实施例的显示 基板为有机发光二极管（Organic Light Emitting Diode, OLED )显示基板时， 则每个显示单元 6可包括有机发光二极管和相应的驱动电路。 例如， 驱动电 路可由一个开关晶体管、 一个驱动晶体管、 一个存储电容组成。 又例如， 当 本实施例的显示基板为电子墨水显示基板时， 则每个显示单元 6可包括有像 素电极、 公共电极、 电子墨水层以及相应的驱动电路等。
同时， 衬底 5上还应设有栅极线、 数据线等电路结构， 例如栅极线横向 布置， 数据线纵向布置， 在此不再详细描述。
本实施例双视场显示基板中， 第一显示区 511和第二显示区 512朝向不 同 （即它们所在部分表面的法线朝向不同方向） ， 分别处于第一显示区 511 和第二显示区 512的显示单元 6发出的光直接射向不同方向， 则它们的主出 光方向不同。 这样在双视场显示基板的侧向观看即可分别看到第一显示区和 第二显示区显示的图像， 从而不再需要使用狭缝光栅。 这样只需要对显示基 时克服了狭缝光栅和显示基板对位不准确导致的观看问题， 双视效果好。
图 3为实施例 1 的一种双视场显示基板的局部剖视图， 例如沿线 A-A， 的剖视图。如图 3所示，衬底 5包括多条平行设置的凸棱 7, 所述多条凸棱 7 的具有第一显示单元承载部 71和第二显示单元承载部 72, 分别对应于第一 显示区 511和第二显示区 512。所述第一显示单元承载部 71用于在其上设置 第一显示区 511的显示单元 6,所述第二显示单元承载部 72用于在其上设置 第二显示区 512的显示单元 6。
所述第一显示单元^载部 71 的表面沿着逆时针方向与所述显示基板的 法线方向 （图 3 中的虚线）形成第一夹角 a , 所述第二显示单元 7|载部 72 表面沿着顺时针方向与所述显示基板的法线方向形成第二夹角 β。 所述第一 夹角 α和所述第二夹角 β均大于 0度且不同时为 90度，即所述第一显示区和 所述第二显示区朝向不同。 可见， 通过凸棱 7结构， 可很筒单的将衬底 5表 面分成两组朝向不同的区域，实现第一显示区 511和第二显示区 512的分割。 "显示基板的法线方向" 指的是整体上垂直于显示基板的村底表面的方 向， 而非所述第一显示区所在部分区域的法线或第二显示区所在部分区域的 法线方向。
例如， 所述凸棱的横截面为等腰三角形， 所述等腰三角形的两腰与所述 凸棱的第一显示单元承载部 71和第二显示单元承载部 72对应， 此时所述第 一夹角 α和所述第二夹角 β相等。
进一步例如， 所述凸棱为横截面为等腰直角三角形时， 即所述第一夹角 α和第二夹角 β均为 45度。
第一显示区 511和第二显示区 512的朝向符合一定关系时双视效果最好。 如果第一夹角 α和第二夹角 β均接近 90度， 即第一显示区所在区域 511的 基板朝向和第二显示区 512所在区域的基板朝向接近平行， 且与基板的法线 方向垂直， 则第一显示区 511和第二显示区 512的图像在较大范围内会发生 混合， 串扰区较大， 能实现双视的区域过少。 如果第一夹角 α和第二夹角 β 均接近 0度， 即第一显示区所在区域 511的基板朝向和第二显示区 512所在 区域的基板朝向接近平行， 且与基板的法线方向平行， 则一方面两视区位置 差别过大， 观看不便， 另一方面第一显示区 511和第二显示区 512上的显示 单元发出的光还容易被相邻的凸棱 7挡住， 影响显示效果。 而第一夹角 α和 第二夹角 β均为 45度， 可以使得观看效果较佳。
根据这种方式， 凸棱 7是关于其中心面左右对称的， 这样在村底 5两侧 的相同的位置可分别看到第一显示区 511和第二显示区 512, 如图 1所示的 串扰区则减小甚至消失， 从而符合一般的双视习惯。
例如， 所述凸棱 7的横截面为直角梯形， 所述直角梯形的上底和斜腰与 所述凸棱 7的第一显示单元承载部 71和第二显示单元承载部 72对应， 即所 述第一夹角和所述第二夹角中之一为 90度。图 4为实施例 1的另一种双视场 显示基板的局部剖视图。 如图 4所示， 凸棱 7的横截面为直角梯形， 所述直 角梯形的上底和斜腰与所述凸棱的两侧面对应， 即所述第一夹角 α不为 90 度， 所述第二夹角 β为 90度。 当然， 所述第一夹角 α为 90度， 而第二夹角 β不为 90度也是同样的。
当然， 第一显示区 511和第二显示区 512的不同朝向也可通过将村底 5 设置成其他形式实现， 只要其使第一显示区 511和第二显示区 512分别朝向 不同的方向即可， 在此不再详细描述。
在图 3和图 4所示的实施例中， 凸棱 7形成为衬底 5的一部分， 衬底 5 包括显示单元 6等阵列与显示电路结构， 显示单元 6或者其出光面设置在凸 棱的两个侧面上。
图 5为实施例 1的又一种双视场显示基板的局部剖视图。 如图 5所示， 衬底 5包括基层 53和成型层 52, 成型层 52被加工以具有凸棱 7。 例如， 基 层 53通常采用玻璃基底、塑料基底形成。衬底 5还包括显示单元 6等阵列与 显示驱动电路结构等， 显示单元 6或者其出光面设置在凸棱 7的两个侧面的 第一显示单元承载部 71和第二显示单元承载部 72上。在基层 53的表面上形 成成型层 52。 成型层 52优选由树脂或其他易于加工成型的材料形成。 对于 玻璃材料， 对其加工形成凸棱的工艺比较复杂， 而通过印花工艺、 光刻工艺 等已知的工艺对成型层 52加工形成凸棱 7是比较筒单的。 在形成了成型层 52及其中的凸棱 7之后。 例如， 然后在成型层 52的上形成对应于第一显示 区 511和第二显示区 512的显示单元 6。
形成显示单元 6的方法可以采用本领域已知的方式实现。 例如当该显示 基板为 OLED显示基板时， 可以采用沉积、 光刻等方式形成有机发光二极管 的各个功能层以及驱动电路结构等。
针对具有彼此平行布置的凸棱的基板， 例如， 可以制作两张沉积或构图 用掩膜板 A和 B, 分别对应第一显示区和第二显示区。 沉积第一导电层， 用 于形成 OLED的阳极或阴极； 依次沉积有机发光层， 还可以形成例如空穴传 输层、 电子传输层等功能层； 沉积第二导电层， 用于相应地形成 OLED的阴 极或阳极； 至此， OLED器件结构形成。 当然， 在形成 OLED器件之前还需 要制作作为驱动元件和开关元件的薄膜晶体管 （TFT ) , 这也可以采用两张 掩模版的方法， 即， 将现有制备阵列基板的步骤分为两次执行， 分别形成第 一显示区和第二显示区中的相应部件。
当该显示基板为电子墨水基板时， 例如， 可以先单独制备电子墨水显示 膜， 然后将该显示膜粘结在成型层 52的表面上， 且使该显示膜与成型层 52 共形， 具有出光方向不同的第一和第二显示区。
进一步优选的， 凸棱 7通过印花工艺或使用双色调掩膜板的光刻工艺形 成。 也就是说， 可以通过印花工艺直接形成具有凸棱 7结构的成型层 52, 然 后成型层 52被例如粘结到衬底 5的表面上。或者，也可先形成完整的成型层 52, 之后通过使用双色调掩膜板的光刻工艺对成型层 52加工形成凸棱 7。 双 色调掩膜板又称灰度掩膜板,其可实现对膜层不同位置进行不同程度的刻蚀， 从而形成凸棱 7结构。
实施例 2:
如图 6所示， 本实施例提供一种双视场显示装置， 其包括上述的实施例 1双视场显示基板。
由于本实施例的双视场显示装置包括上述的双视场显示基板， 故其结构 筒单、 成本低、 双视效果好
优选的， 双视场显示装置还包括形成在所述双视场显示基板上的封装层
4。
如图 6所示， 封装层 4将双视场显示基板的表面封闭， 由于其上表面是 平坦的， 使双视场显示装置的表面成为平面， 从而避免凸棱 7、 显示单元 6 等结构受到损坏。 形成封装层 4可以采用已知方法、 材料等形成， 例如封装 层 4可以采用将树脂材料涂覆在显示基板 100的表面上再平坦化形成， 故在 此不再详细描述。
当然， 本实施例的双视场显示装置中例如还可包括电源、 驱动芯片、 框 架等其他已知结构， 在此不再详细描述。
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。

Claims

权利要求书
1. 一种双视场显示基板， 包括衬底， 所述衬底上设有交替排列的第一显 示区和第二显示区，所述第一显示区和所述第二显示区中分别设有显示单元， 其中，
所述各第一显示区各显示单元的主出光方向一致并对应于只能看到所述 各第一显示区的第一视区， 所述各第二显示区各显示单元的主出光方向一致 并对应于只能看到所述各第二显示区的第二视区。
2. 根据权利要求 1所述的双视场显示基板， 其中，
所述衬底包括多条凸棱， 所述凸棱具有第一显示单元 7 载部和第二显示 单元承载部， 所述第一显示单元承载部对应于第一显示区的显示单元， 所述 第二显示单元承载部对应于第二显示区的显示单元。
3. 根据权利要求 2所述的双视场显示基板， 其中， 所述多条凸棱平行设 置。
4. 根据权利要求 3所述的双视场显示基板， 其中， 所述第一显示单元承 载部表面沿着逆时针方向与所述显示基板的法线方向形成第一夹角， 所述第 二显示单元承载部表面沿着顺时针方向与所述显示基板的法线方向形成第二 夹角， 所述第一夹角和所述第二夹角不同时为 90度。
5. 根据权利要求 4所述的双视场显示基板， 其中，
所述凸棱的横截面为等腰三角形， 所述等腰三角形的两腰与所述凸棱的 第一显示单元承载部和第二显示单元承载部对应， 即所述第一夹角和所述第 二夹角相等。
6. 根据权利要求 5所述的双视场显示基板， 其中， 所述第一夹角和第二 夹角均为 45度。
7. 根据权利要求 4所述的双视场显示基板， 其中， 所述凸棱的横截面为 直角梯形， 所述直角梯形的上底和斜腰与所述凸棱的第一显示单元 7|载部和 第二显示单元承载部对应， 即所述第一夹角和所述第二夹角中有一为 90度。
8. 根据权利要求 1-7中任意一项所述的双视场显示基板， 其中， 所述衬 底包括基层和形成在基层上的成型层， 所述凸棱形成在所述成型层中。
9. 一种双视场显示装置， 包括： 权利要求 1至 8中任意一项所述的双视 场显示基板。
10. 根据权利要求 9所述的双视场显示装置， 还包括： 形成在所述双视 场显示基板上的封装层。
11. 根据权利要求 10所述的双视场 OLED显示装置，其中，所述封装层 具有平坦的表面。
PCT/CN2013/074810 2013-02-19 2013-04-26 双视场显示基板和显示装置 WO2014127586A1 (zh)

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