WO2017118116A1 - 可弯折的显示装置 - Google Patents

可弯折的显示装置 Download PDF

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Publication number
WO2017118116A1
WO2017118116A1 PCT/CN2016/100355 CN2016100355W WO2017118116A1 WO 2017118116 A1 WO2017118116 A1 WO 2017118116A1 CN 2016100355 W CN2016100355 W CN 2016100355W WO 2017118116 A1 WO2017118116 A1 WO 2017118116A1
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WO
WIPO (PCT)
Prior art keywords
circuit board
display device
corner portion
bendable display
sliding
Prior art date
Application number
PCT/CN2016/100355
Other languages
English (en)
French (fr)
Inventor
胡楠楠
Original Assignee
京东方科技集团股份有限公司
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.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/531,068 priority Critical patent/US10002551B2/en
Publication of WO2017118116A1 publication Critical patent/WO2017118116A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0277—Bendability or stretchability details
    • H05K1/028—Bending or folding regions of flexible printed circuits
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0277—Bendability or stretchability details
    • H05K1/0278—Rigid circuit boards or rigid supports of circuit boards locally made bendable, e.g. by removal or replacement of material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/148—Arrangements of two or more hingeably connected rigid printed circuit boards, i.e. connected by flexible means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09009—Substrate related
    • H05K2201/09027—Non-rectangular flat PCB, e.g. circular
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10128—Display
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
    • H05K2201/2036—Permanent spacer or stand-off in a printed circuit or printed circuit assembly

Definitions

  • Embodiments of the invention relate to a bendable display device.
  • curved display devices have become a popular trend, and the screen of the curved display device is curved.
  • the curved display device has a small viewing angle and is only suitable for a few people to watch, and is not applicable when there are many people.
  • some bendable display devices are created which can be bent in an arc to freely switch the screen of the display device between planar and small curvature surfaces.
  • the four corners of the circuit board card are fixed to the positioning posts of the backboard.
  • the bendable display device is curved and curved, the bending performance of the circuit board card is poor and the circuit card card tends to be flattened, so that a large interaction force is generated between the circuit board card and the curved back plate.
  • the force of the backplane on the circuit board is applied to the circuit board card through the four corner positioning posts.
  • the bendable display device is bent, the circuit board card is always subjected to the force of the positioning post until the bendable display device returns to the flat display device. Therefore, in a bendable display device, the circuit board card is very susceptible to damage and causes defects.
  • a bendable display device includes a backboard and a circuit board card disposed opposite the backplane. Among the four corners of the circuit board card, the first corner portion and the second corner portion are adjacent to each other and are fixedly mounted to the backboard respectively.
  • the back plate is provided with two sliding slots, and the two sliding slots are respectively disposed opposite to the third corner portion and the fourth corner portion of the circuit board card, and each of the sliding slots is provided with a sliding block. The height of the sliding block is less than the depth of the sliding slot.
  • the bendable display device further includes a mounting post in one-to-one correspondence with the sliding slot, and the first end of each of the mounting posts is connected to a sliding block in a corresponding sliding slot thereof, and each of the mountings is A second end of the post is coupled to the circuit board card.
  • each of the chutes extends in a direction toward a side sandwiched between the first corner and the second corner of the circuit board card.
  • the two side surfaces of the sliding block are respectively in contact with the side walls of the two sides of the sliding groove.
  • the backboard is provided with two positioning posts respectively disposed opposite to the first corner portion and the second corner portion of the circuit board card, and the first corner portion and the second corner portion of the circuit board card are respectively It is fixedly connected to its opposite positioning post.
  • each of the positioning posts is a convex structure in which the back plate is convex toward the circuit board.
  • each of the mounting posts is provided with threaded holes, and each of the mounting posts is coupled to the circuit board card by screws.
  • each of the mounting posts is provided with a limiting plate disposed perpendicular to the axis line of the mounting post, and the limiting plate is located between the circuit board card and the sliding slot.
  • each of the mounting posts is snap-fitted with a sliding pad in its corresponding sliding slot.
  • each of the mounting posts is provided with a limiting pin that is mated with a sliding pad in a corresponding sliding slot thereof so that the mounting post is in a direction perpendicular to its axis line.
  • the sliding blocks are relatively fixed.
  • the chute is a groove-shaped structure formed by the back plate protruding toward the circuit board, and the bottom of the groove structure is provided with an opening to form an opening of the chute.
  • FIG. 1 is a cross-sectional structural view showing a back plate and a circuit board of a bendable display device being buckled when not bent according to an embodiment of the present invention
  • FIG. 2 is a schematic cross-sectional structural view of a back panel and a circuit board of a bendable display device according to an embodiment of the present invention
  • FIG. 3 is a schematic plan view showing a backplane and a circuit board card of a bendable display device according to an embodiment of the present invention
  • FIG. 4 is a schematic structural view of a sliding slot provided on a backboard of a bendable display device according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a mounting post of a bendable display device according to an embodiment of the present invention.
  • an embodiment of the present invention provides a bendable display device including a backboard 1 and a circuit board card 2 disposed opposite the backplane 1.
  • the first corner portion 21 and the second corner portion 22 are adjacent to each other and are fixedly mounted to the backboard 1 respectively.
  • the back plate 1 is provided with two sliding slots 10, and the two sliding slots 10 are respectively disposed opposite to the third corner portion 23 and the fourth corner portion 24 of the circuit board card; each sliding slot 10 is provided with a sliding block 3 for sliding
  • the height of the spacer 3 is smaller than the depth h of the chute 10;
  • the bendable display device further includes a mounting post 4 corresponding to the chute 10, and the first end of each mounting post 4 is connected to a sliding block 3 in the corresponding sliding slot 10, and each mounting post 4 The second end is connected to the circuit board card 2.
  • the first corner portion 21 and the second corner portion 22 of the circuit board card are fixed to the backboard 1 so that the first corner portion 21 of the circuit board card 2 and the first
  • the side edges (first side edges 25) sandwiched between the two corner portions 22 are fixed with respect to the back plate 1, and the other two corner portions of the circuit board card 2, that is, the third corner portion 23 and the fourth corner portion 24 are respectively backed
  • the two chutes 10 disposed on the plate 1 are oppositely disposed and are slidably coupled to the chute 10 by the mounting post 4 and the sliding block 3, respectively.
  • the sliding block 3 can move in the up and down direction with respect to the chute 10; therefore, as shown in FIG.
  • the sliding blocks in the two chutes 10 3 can be moved toward the top opening 101 of the chute 10 by the third corner portion 23 and the fourth corner portion 24, respectively, so that the circuit board card 2 does not eventually undergo deformation or only a small deformation is generated.
  • each of the chutes 10 extends toward the side of the first side 25 which is sandwiched between the first corner 21 and the second corner 22 of the circuit board 2.
  • the sliding blocks 3 in the two chutes 10 can be respectively at the third corner portion 23 of the circuit board card 2.
  • the fourth corner portion 24 is driven to move toward the top opening 101 of the chute 10 and the extending direction of the chute 10, so that the circuit board card 2 can be better prevented from being deformed, so that the circuit board card 2 can be bent.
  • the display device is subjected to less force during bending.
  • each of the mounting posts 4 is equal to the width of the opening 101 of the chute 10 corresponding thereto.
  • the sliding pad 3 and the mounting post 4 By arranging the structure of the sliding pad 3 and the mounting post 4 as described above, it can be ensured that the sliding pad 3 and the mounting post 4 can only move along the extending direction of the chute 10, thereby avoiding bending when the bendable display device is bent.
  • the third corner portion 23 and the fourth corner portion 24 of the circuit board card 2 are moved in other directions with respect to the backboard 1 to cause a poor stability of the board card.
  • the arrangement of the sliding block 3 can also prevent its rotation in the chute 10, thereby facilitating the connection operation between the sliding block 3 and the mounting post 4.
  • the backboard 1 may be provided with the first corner of the circuit board card 2, respectively. 21 and the two positioning posts 5 opposite to the second corner portion 22, the first corner portion 21 and the second corner portion 22 of the circuit board card 2 can be fixedly connected to the positioning post 5 disposed opposite thereto.
  • each of the positioning posts 5 may be a convex structure formed by the backing plate 1 toward the circuit board card 2.
  • the first corner portion 21 and the second corner portion 22 of the circuit board card 2 can be fixedly connected by screws or rivets 6 and positioning posts 5 disposed opposite thereto, respectively.
  • each mounting post 4 may be provided with a threaded hole 41
  • the circuit board card 2 may be provided with The threaded hole 41 is opposite to the through hole, and the through hole may be a hole without a thread or a threaded hole, and each of the holes
  • the mounting post 4 and the circuit board card 2 can be connected by a screw 7 that passes through the through hole of the circuit board card 2 and is threadedly engaged with the threaded hole 41 of the mounting post 4.
  • each of the mounting posts 4 may be provided with a limiting plate 42 disposed perpendicular to the axis line of the mounting post 4, and the limiting plate 42 It is located between the circuit board card 2 and the chute 10 for limiting the mounting post 4.
  • the mounting post 4 Since the height of the sliding block 3 is smaller than the height of the chute 10, when the first end of the mounting post 4 is connected to the sliding block 3, the mounting post 4 may fall inside the chute 10, resulting in inconvenience in installation. Therefore, limiting the mounting post 4 through the limiting plate 42 can prevent the mounting post 4 from falling into the inside of the sliding slot 10, thereby facilitating installation.
  • the first end of each mounting post 4 can be engaged with the sliding pad 3 in the corresponding sliding slot 10 thereof.
  • the edge portion of the first end of the mounting post 4 may be provided with a protrusion 43.
  • the sliding block 3 is provided with a card slot 31, and the protrusion 43 is engaged with the card slot 31 to realize the first end and the sliding of the mounting post 4.
  • the connection of the spacer 3. is not limited to the snapping, and may also be connected by a mounting screw.
  • each mounting post 4 may be provided with a limit of the mating fit of the sliding block 3 in the corresponding sliding slot 10.
  • a position pin 44 that positions the mounting post 4 by the sliding block 3 such that the mounting post 4 is relatively fixed to the sliding block 3 in a direction perpendicular to its axis. Therefore, as shown in FIGS. 1 and 2, in the process of connecting the circuit board 2 and the mounting post 4 by the screw 7, when the screw 7 is rotated into the threaded hole 41 of the mounting post 4, due to the limitation of the sliding block 3 The position can prevent the mounting post 4 from rotating together with the screw 7, so that the connection operation between the circuit board card 2 and the mounting post 4 can be facilitated.
  • the sliding slot 10 provided on the backboard may be a slotted structure formed by protruding the backplane 1 toward the circuit board 2, the slot type An opening is formed in the bottom of the structure to form an opening 101 of the chute 10.
  • a side of the backplane 1 remote from the circuit board card 2 is provided with a display panel.
  • the display panel may be any panel having a display function such as a liquid crystal display panel, an organic electroluminescence display panel, or the like.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)

Abstract

一种可弯折的显示装置，包括背板（1）以及与背板（1）相对设置的电路板卡（2）。电路板卡（2）的四个角部中，第一角部（21）和第二角部（22）相邻且分别固定安装于背板（1）。背板（1）设有两个滑槽（10），两个滑槽（10）分别与电路板卡（2）的第三角部（23）和第四角部（24）相对设置，每一个滑槽（10）内设有一个滑动垫块（3），滑动垫块（3）的高度小于滑槽（10）的深度。可弯折的显示装置还包括与滑槽（10）一一对应的安装柱（4），每一个安装柱（4）的第一端和与其对应的滑槽（10）内的滑动垫块（3）相连，每一个安装柱（4）的第二端与电路板卡（2）相连。可弯折的显示装置的电路板卡（2）不易发生损坏，进而不易产生不良。

Description

可弯折的显示装置 技术领域
本发明的实施例涉及一种可弯折的显示装置。
背景技术
目前，曲面显示装置已成为一种流行的趋势，曲面显示装置的屏幕为弧形。但是，曲面显示装置的观看视角较小，只适合少数人观看，在人多时并不适用。因此，产生了一些可弯折的显示装置，该显示装置可以弯折呈弧形以使显示装置的屏幕在平面和小曲率曲面两种状态之间自由切换。
在可弯折的显示装置中，电路板卡的四个角部固定于背板的定位柱上。当可弯折的显示装置弯曲呈弧形时，电路板卡的弯曲性能很差且电路板卡会趋于恢复平整，从而电路板卡与弯曲的背板之间会产生较大的相互作用力，而背板对电路板卡的作用力会通过四个角部的定位柱作用于电路板卡上。电路板卡在可弯折的显示装置弯曲时会一直受到定位柱的作用力直到该可弯折的显示装置恢复为平面显示装置为止。因此，在可弯折的显示装置中，电路板卡非常容易发生损坏从而导致不良。
发明内容
根据本发明的实施例，提供一种可弯折的显示装置。该可弯折的显示装置包括背板以及与所述背板相对设置的电路板卡。所述电路板卡的四个角部中，第一角部和第二角部相邻且分别固定安装于所述背板。所述背板设有两个滑槽，所述两个滑槽分别与所述电路板卡的第三角部和第四角部相对设置，每一个所述滑槽内设有一个滑动垫块，所述滑动垫块的高度小于所述滑槽的深度。所述可弯折的显示装置还包括与所述滑槽一一对应的安装柱，每一个所述安装柱的第一端和与其对应的滑槽内的滑动垫块相连，每一个所述安装柱的第二端与所述电路板卡相连。
例如，每一个所述滑槽朝向所述电路板卡的第一角部和第二角部之间所夹的侧边的方向延伸。
例如，所述滑动垫块的两个侧表面分别与所述滑槽的两侧侧壁接触。
例如，所述背板设有分别与所述电路板卡的第一角部和第二角部相对设置的两个定位柱，所述电路板卡的第一角部和第二角部分别和与其相对设置的定位柱固定连接。
例如，每一个所述定位柱为所述背板朝向所述电路板卡方向凸起的凸起结构。
例如，每一个所述安装柱的第二端设有螺纹孔，每一个所述安装柱通过螺钉与所述电路板卡相连。
例如，每一个所述安装柱设有与所述安装柱的轴心线垂直设置的限位板，所述限位板位于所述电路板卡与所述滑槽之间。
例如，每一个所述安装柱的第一端和与其对应的滑槽内的滑动垫块卡接配合。
例如，每一个所述安装柱的侧壁设有和与其对应的滑槽内的滑动垫块插接配合的限位销，以使所述安装柱在垂直于其轴心线的方向上与所述滑动垫块相对固定。
例如，所述滑槽为所述背板朝向所述电路板卡方向凸起而形成的槽型结构，所述槽型结构的底部设有开口以形成所述滑槽的开口。
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为本发明实施例提供的可弯折的显示装置的背板和电路板卡在未弯折时的截面结构示意图；
图2为本发明实施例提供的可弯折的显示装置的背板和电路板卡在弯折时的截面结构示意图；
图3为本发明实施例提供的可弯折的显示装置的背板和电路板卡的平面结构示意图；
图4为本发明实施例提供的可弯折的显示装置的背板设有的滑槽的结构示意图；
图5为本发明实施例提供的可弯折的显示装置的安装柱的结构示意图。
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。
如图1～图3所示，本发明实施例提供一种可弯折的显示装置，包括背板1以及与背板1相对设置的电路板卡2。电路板卡2的四个角部中，第一角部21和第二角部22相邻且分别固定安装于背板1。背板1设有两个滑槽10，两个滑槽10分别与电路板卡的第三角部23和第四角部24相对设置；每一个滑槽10内设有一个滑动垫块3，滑动垫块3的高度小于滑槽10的深度h；
该可弯折的显示装置还包括与滑槽10一一对应的安装柱4，每一个安装柱4的第一端和与其对应的滑槽10内的滑动垫块3相连，每一个安装柱4的第二端与电路板卡2相连。
如图3所示，上述可弯折的显示装置中，电路板卡的第一角部21和第二角部22固定于背板1从而使该电路板卡2的第一角部21和第二角部22之间所夹的侧边(第一侧边25)相对于背板1固定，而电路板卡2的另外两个角部即第三角部23和第四角部24分别与背板1上设有的两个滑槽10相对设置、且分别通过安装柱4和滑动垫块3实现与滑槽10滑动配合连接。并且，如图1所示，由于滑动垫块3的高度小于滑槽10的深度，即滑动垫块3可相对于滑槽10上下方向移动；因此，如图2所示，当该可弯折的显示装置弯曲致使电路板卡2的第三角部23和第四角部24产生远离背板1方向的运动趋势以避免电路板卡2产生形变的时候，两个滑槽10内的滑动垫块3可以分别在第三角部23和第四角部24的带动下朝向滑槽10的顶部开口101方向运动从而使电路板卡2最终不产生形变或者仅会产生较小的形变。因此，根据本发明实施例的可弯折的显示装置在弯曲时，电路板卡2与弯曲的背板1之间可以不产生相互作用力或者仅产生较小的相互作用力，进而使电路板卡2不会受到背板1的作用力或者仅受到较小的作用力。因此，上述可弯折的显示装置 的电路板卡不易发生损坏，进而不易产生不良。
如图3所示，例如，每一个滑槽10朝向电路板卡2的第一角部21和第二角部22之间所夹的侧边即第一侧边25的方向延伸。
如图2所示，当该可弯折的显示装置沿与第一侧边25平行的直线弯曲时，两个滑槽10内的滑动垫块3可以分别在电路板卡2的第三角部23和第四角部24的带动下朝向滑槽10的顶部开口101以及滑槽10的延伸方向移动，进而可以更好地避免电路板卡2产生形变，从而可以使电路板卡2在可弯折的显示装置弯曲过程中受到的作用力更小。
如图4所示，例如，对于位于滑槽10内的滑动垫块3，其两个侧表面(例如，延伸方向与滑槽10的延伸方向相平行的两个侧表面)分别与滑槽10的两侧侧壁相接触。
如图2和图4所示，例如，沿垂直于滑槽10的延伸方向上，每一个安装柱4的宽度等于与其对应的滑槽10的开口101的宽度。
通过上述对滑动垫块3与安装柱4的结构进行设置，可以保证滑动垫块3与安装柱4只能沿滑槽10的延伸方向移动，因此可以避免在将可弯折的显示装置弯曲时，电路板卡2的第三角部23和第四角部24相对于背板1产生其他方向的运动从而导致电路板卡的稳定差。另外，对滑动垫块3的设置还可避免其在滑槽10内产生转动，从而方便滑动垫块3与安装柱4之间的连接操作。
如图1和图2所示，在上述各实施例的基础上，例如，本发明实施例的可弯折的显示装置中，背板1可以设有分别与电路板卡2的第一角部21和第二角部22相对设置的两个定位柱5，电路板卡2的第一角部21和第二角部22可以分别和与其相对设置的定位柱5固定连接。
如图1和图2所示，在上述实施例的基础上，例如，每一个定位柱5可以为背板1朝向电路板卡2方向形成的一个凸起结构。进一步地，例如电路板卡2的第一角部21和第二角部22可以分别通过螺钉或者铆钉6和与其相对设置的定位柱5实现固定连接。
如图1、图2、图4和图5所示，在上述各实施例的基础上，例如每一个安装柱4的第二端可以设有螺纹孔41，电路板卡2上可以设有与螺纹孔41相对设置的过孔，该过孔可以为不具有螺纹的孔也可以为螺纹孔，每一个安 装柱4与电路板卡2可以通过穿过电路板卡2的过孔且与安装柱4的螺纹孔41螺纹配合的螺钉7实现连接。
如图1～图5所示，在上述各实施例的基础上，例如，每一个安装柱4可以设有与该安装柱4的轴心线垂直设置的限位板42，该限位板42位于电路板卡2与滑槽10之间，用于对安装柱4进行限位。
由于滑动垫块3的高度小于滑槽10的高度，因此在将安装柱4的第一端与滑动垫块3相连接时，安装柱4可能会落入滑槽10内部，从而导致安装不便。因此，将安装柱4通过限位板42进行限位可以避免安装柱4落入滑槽10内部，从而方便安装。
如图4和图5所示，在上述各实施例的基础上，例如，每一个安装柱4的第一端可以和与其对应的滑槽10内的滑动垫块3卡接配合。例如，安装柱4的第一端的边缘部位可以设有凸起43，滑动垫块3设有卡槽31，凸起43与卡槽31卡接配合以实现安装柱4的第一端和滑动垫块3的连接。当然，安装柱4和滑动垫块3的连接方式并不限于卡接，也可以通过安装螺钉进行连接。
如图4和图5所示，在上述实施例的基础上，例如，每一个安装柱4的侧壁上还可以设有和与其对应的滑槽10内的滑动垫块3插接配合的限位销44，该限位销44使安装柱4被滑动垫块3所限位，从而使安装柱4在垂直于其轴心线的方向上与滑动垫块3相对固定。所以，如图1和图2所示，在通过螺钉7连接电路板卡2与安装柱4的过程中，将螺钉7旋转进安装柱4的螺纹孔41内时，由于滑动垫块3的限位可以避免安装柱4随螺钉7一起旋转运动，从而可以方便电路板卡2与安装柱4之间的连接操作。
如图4所示，在上述各实施例的基础上，例如，背板上设有的滑槽10可以是将背板1朝向电路板卡2方向凸起而形成的槽型结构，该槽型结构的底部开设开口以形成滑槽10的开口101。
例如，在根据本发明的实施例中，背板1的远离电路板卡2的一侧设置有显示面板。例如，该显示面板可以为液晶显示面板、有机电致发光显示面板等任何具有显示功能的面板。
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2016年1月5日递交的第201610005905.7号中国专利申请的优先权，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 (10)

  1. 一种可弯折的显示装置，包括背板以及与所述背板相对设置的电路板卡，其中：
    所述电路板卡的四个角部中，第一角部和第二角部相邻且分别固定安装于所述背板；
    所述背板设有两个滑槽，所述两个滑槽分别与所述电路板卡的第三角部和第四角部相对设置，每一个所述滑槽内设有一个滑动垫块，所述滑动垫块的高度小于所述滑槽的深度；
    所述可弯折的显示装置还包括与所述滑槽一一对应的安装柱，每一个所述安装柱的第一端和与其对应的滑槽内的滑动垫块相连，每一个所述安装柱的第二端与所述电路板卡相连。
  2. 根据权利要求1所述的可弯折的显示装置，其中，每一个所述滑槽朝向所述电路板卡的第一角部和第二角部之间所夹的侧边的方向延伸。
  3. 根据权利要求2所述的可弯折的显示装置，其中，所述滑动垫块的两个侧表面分别与所述滑槽的两侧侧壁接触。
  4. 根据权利要求1所述的可弯折的显示装置，其中，所述背板设有分别与所述电路板卡的第一角部和第二角部相对设置的两个定位柱，所述电路板卡的第一角部和第二角部分别和与其相对设置的定位柱固定连接。
  5. 根据权利要求4所述的可弯折的显示装置，其中，每一个所述定位柱为所述背板朝向所述电路板卡方向凸起的凸起结构。
  6. 根据权利要求1所述的可弯折的显示装置，其中，每一个所述安装柱的第二端设有螺纹孔，每一个所述安装柱通过螺钉与所述电路板卡相连。
  7. 根据权利要求6所述的可弯折的显示装置，其中，每一个所述安装柱设有与所述安装柱的轴心线垂直设置的限位板，所述限位板位于所述电路板卡与所述滑槽之间。
  8. 根据权利要求1所述的可弯折的显示装置，其中，每一个所述安装柱的第一端和与其对应的滑槽内的滑动垫块卡接配合。
  9. 根据权利要求8所述的可弯折的显示装置，其中，每一个所述安装柱的侧壁设有和与其对应的滑槽内的滑动垫块插接配合的限位销，以使所述安 装柱在垂直于其轴心线的方向上与所述滑动垫块相对固定。
  10. 根据权利要求1～9任一项所述的可弯折的显示装置，其中，所述滑槽为所述背板朝向所述电路板卡方向凸起而形成的槽型结构，所述槽型结构的底部设有开口以形成所述滑槽的开口。
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