WO2022111079A1 - 一种显示装置及胶带 - Google Patents

一种显示装置及胶带 Download PDF

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Publication number
WO2022111079A1
WO2022111079A1 PCT/CN2021/123113 CN2021123113W WO2022111079A1 WO 2022111079 A1 WO2022111079 A1 WO 2022111079A1 CN 2021123113 W CN2021123113 W CN 2021123113W WO 2022111079 A1 WO2022111079 A1 WO 2022111079A1
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WO
WIPO (PCT)
Prior art keywords
adhesive tape
middle frame
display device
tape
display panel
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PCT/CN2021/123113
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English (en)
French (fr)
Inventor
夏继泰
孙文波
凌遵干
Original Assignee
京东方科技集团股份有限公司
合肥京东方显示光源有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥京东方显示光源有限公司 filed Critical 京东方科技集团股份有限公司
Publication of WO2022111079A1 publication Critical patent/WO2022111079A1/zh

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    • 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

Definitions

  • the present application relates to the field of display technology, and in particular, to a display device and an adhesive tape.
  • a display device (such as a liquid crystal display) usually includes a middle frame, and a backplane and a display panel arranged on both sides of the middle frame.
  • the backplane and the display panel are bonded by a plurality of end-to-end foam tapes.
  • the cotton tapes are spliced at the corners of the middle frame.
  • there are tolerances in the actual production process of the middle frame and the foam tape resulting in gaps at the corners of the middle frame that are difficult to eliminate.
  • Fig. 1 shows the distribution of the foam tape on the surface of the middle frame
  • Fig. 2 shows a partial enlarged view of A in Fig. 1, with reference to Fig. 1 and Fig. 2,
  • the middle frame M includes four side frames connected end to end to enclose A rectangular middle frame, foam tape a, foam tape b, foam tape c and foam tape d are pasted on the four side frames of the middle frame in one-to-one correspondence, and are spliced end to end, and the splicing positions are all in the middle corners of the frame.
  • the release film is separated from the foam tape, and the foam tape is easily damaged; even by offsetting the foam tape d is positioned so that it is connected to the foam tape a, and eventually the gap will still accumulate between the other two foam tapes.
  • the present application discloses a display device and an adhesive tape, which are used to eliminate the gap in the foam adhesive tape and prevent foreign objects such as dust from entering the display panel, so as to ensure the display image quality.
  • a display device comprising:
  • a display panel, an adhesive tape assembly and a middle frame the middle frame is annular and has a plurality of folded corners, the display panel is mounted on the middle frame, and the adhesive tape assembly is located between the middle frame and the display panel, And extending along the edge of the middle frame, the portion of the tape assembly located at each of the corners has a bending structure, and the bending structure is a structure formed by bending an integral structure with an opening at the opening.
  • the segments of the tape assembly located on both sides of each corner to have an integrated structure, foreign matter such as dust can be prevented from entering the rear side of the display panel from the gap at the corner, and the display quality is improved.
  • the orthographic projections of the two sides of the gap on the middle frame do not overlap, which can avoid the superposition of the structures on both sides of the gap to form a redundant part, and the situation that the display panel cannot be flatly fitted with the middle frame.
  • the angle ⁇ between the two sides of the opening satisfies: 0° ⁇ 45°.
  • the distance between the bottom end of each of the openings and the side edge of the corresponding adhesive tape facing away from the opening is between 0.2 mm and 0.5 mm.
  • the adhesive tape assembly includes at least one adhesive tape spliced end-to-end through ends;
  • each pair of spliced end portions the projection of one end portion in the width direction overlaps the projection of the other end portion in the width direction.
  • the adhesive tape assembly includes a plurality of adhesive tapes, wherein the plurality of adhesive tapes are in one-to-one correspondence with the plurality of corners.
  • the adhesive tape assembly includes a piece of adhesive tape, wherein the adhesive tape corresponds to the plurality of folded corners respectively.
  • one end has a V-shaped depression
  • the other end has a V-shaped protrusion
  • the V-shaped protrusion is matched with the V-shaped protrusion. in the depression and in contact with the edge of the V-shaped depression.
  • each of the end portions forms an inclined side, and the inclined side of one of the end portions is in contact with the inclined side of the other end portion.
  • an adhesive tape in a second aspect, includes an adhesive tape main body, the adhesive tape main body has at least one avoidance notch for avoiding the formation of a redundant portion, and when the adhesive tape body is bent at the avoidance notch, the The projections of the two sides of the avoidance notch on the middle frame do not overlap.
  • the above-mentioned adhesive tape has the same beneficial effects as the display device provided by the above-mentioned technical solution, which will not be repeated here.
  • the avoidance gap is surrounded by two sides with an included angle ⁇ , wherein the included angle ⁇ satisfies: 90° ⁇ 135°.
  • the adhesive tape further includes a release film, the release film is adhered to the surface of the adhesive tape body, and one end of the release film protrudes relative to a corresponding end of the adhesive tape body.
  • the distance from the bottom of each avoidance notch to the side edge of the tape facing away from the avoidance notch is between 0.2 mm and 0.5 mm.
  • Figure 1 shows the distribution of the foam tape on the surface of the middle frame
  • Fig. 2 shows the partial enlarged view of A in Fig. 1;
  • FIG. 3 shows a partial cross-sectional view of a display device provided by an embodiment of the present application
  • FIG. 4 shows a schematic diagram of the cooperation between an adhesive tape assembly and a middle frame in a display device provided by an embodiment of the present application
  • FIG. 5 shows a schematic diagram of the display device shown in FIG. 4 before the tape 51 is bent
  • FIG. 6 shows a side view of the adhesive tape 51 in the display device shown in FIG. 4;
  • FIG. 7a shows a schematic diagram of the tape 51 in the display device shown in FIG. 4 after being bent
  • Figure 7b shows a variation of the tape shown in Figure 7a
  • FIG. 8 shows a schematic diagram of another display device provided by an embodiment of the present application before the adhesive tape assembly is pasted
  • FIG. 9 shows a schematic diagram of the cooperation between the tape assembly and the middle frame in the embodiment corresponding to FIG. 8;
  • Fig. 10a shows a schematic diagram before the alignment of the adhesive tape 51 and the adhesive tape 52 at B in Fig. 4;
  • Fig. 10b shows a schematic diagram after the alignment of the adhesive tape 51 and the adhesive tape 52 at B in Fig. 4;
  • Fig. 10c shows another schematic diagram after the alignment of the adhesive tape 51 and the adhesive tape 52 at B in Fig. 4;
  • FIG. 12 is a schematic diagram showing the cooperation of two adjacent adhesive tapes in another display device provided by an embodiment of the present application.
  • the display device 01 provided by the embodiment of the present application includes: a display panel 10, an adhesive tape assembly 50 and a middle frame 20, the middle frame 20 is annular and has a plurality of folded corners, and the display panel 10 is installed on the middle frame 20 , the adhesive tape assembly 50 is located between the middle frame 20 and the display panel 10 and extends along the edge of the middle frame 20.
  • the portion of the adhesive tape assembly 50 located at each corner has a bending structure, and the bending structure is formed by an integrated structure with an opening at the opening. A structure formed by bending.
  • the avoidance gap U1 is provided at the position of the tape assembly 50 corresponding to each corner, so as to avoid that the display panel 10 cannot be flatly attached to the middle frame 20 because the tape assembly 50 is bent and bulged at the corner to form a redundant portion. technical problem.
  • the display device 01 provided by the embodiment of the present application includes: a display panel 10, a middle frame 20, a backplane 40, an adhesive tape assembly 50, and a backlight module 30.
  • the middle frame 20 is annular, and the middle frame 20 is annular.
  • the frame 20 includes an annular surrounding wall 22 and an annular supporting table 21, the supporting table 21 is connected to the top of the surrounding wall 22, the display panel 10 is arranged on the supporting table 21, and the adhesive tape assembly 50 is arranged between the display panel 10 and the supporting table 21. time to bond and fix the display panel 10 and the support table 21 .
  • the display device 01 further includes a backplane 40 on the side of the surrounding wall 22 away from the display panel 10, and a backlight module 30 is provided between the backplane 40 and the display panel 10.
  • the reflective sheet 31 , the light guide plate 32 and the optical film 33 are sequentially arranged in the direction of 40 to provide backlight for the display panel 10 .
  • the adhesive tape 51 includes an adhesive tape main body, and the adhesive tape main body includes a segment 51 a and a segment 51 b of a one-piece structure, and an escape notch U1 is formed at the connection of the segment 51 a and the segment 51 b, and the escape notch U1 may specifically include a side.
  • Side p1 and side p2 are two sides, both side p1 and side p2 may be straight sides, and the included angle between side p1 and side p2 is ⁇ .
  • the included angle ⁇ is 90°
  • the lengths of the side p1 and the side p2 are equal.
  • the surface of the tape 51 is also attached with a release film r1, the release film r1 is slightly longer than the sum of the lengths of the segments 51a and 51b, the release film r1 is adhered to the surface of the tape body, and the release film r1 One end of the film r1 protrudes from the corresponding end of the tape main body, so that the release film r1 can be easily removed when the tape 51 is attached to the support table 21 .
  • the segment 51 a and the segment 51 b are bent so that the included angle between the extending directions of the two is approximately 90°, so as to be compatible with the angled position of the support table 21 .
  • the end of the segment 51a close to the folded corner 51b and the end of the folded corner 51b close to the folded corner 51a are folded and connected to form a folded structure, and the opening g1 is located on the inner side of the folded structure.
  • 51a and segment 51b, the connection between the segment 51a and the segment 51b is close to the middle and will not overlap to form a raised redundant portion, thereby avoiding the situation that the display panel 10 and the support table 21 cannot be flatly fitted.
  • the side edge p1 and the side edge p2 are perpendicular to each other to ensure that when the segment 51a and the segment 51b are at 90°, the side edge p1 and the side edge p2 are just spliced together without forming a raised redundant portion. That is, the angle between the side p1 and the side piece is 0°.
  • the included angle ⁇ in the avoidance gap U1 satisfies the following conditions: 90° ⁇ 180, it can be ensured that no redundant portion is formed when the segment 51a and the segment 51b are bent at 90°.
  • ⁇ may specifically be 90°, 100°, 120°, 150° and 175°.
  • the included angle ⁇ can be The condition may be limited as follows: 90° ⁇ 135, and ⁇ may specifically be 90°, 100°, 105°, 110°, 120° and 135°.
  • the range of the included angle ⁇ between the two sides p1 and p2 of the opening g1 formed by avoiding the folding of the gap U1 is between 0° and 45°, and may specifically be 0°, 10°, 20°, 30° and 45°, etc. This is just an example, as long as it is ensured that the orthographic projections of the sides p1 and p2 of the opening g1 on the middle frame do not overlap.
  • the included angle ⁇ is 0°
  • Fig. 7b the included angle ⁇ is greater than 0°.
  • the lengths of the side p1 and the side p2 are only exemplary, and it can be ensured that when the segment 51a and the segment 51b are bent at 90°, they can be aligned, but the lengths of the two may not be equal.
  • the structure and arrangement of the adhesive tape 52 , the adhesive tape 53 and the adhesive tape 54 refer to the adhesive tape 51 .
  • the adhesive tape assembly 50 includes a plurality of adhesive tapes including adhesive tape 51 , adhesive tape 52 , adhesive tape 53 and adhesive tape 54 , and an avoidance notch is provided in the middle of each adhesive tape. It is only necessary to make the avoidance notch in the middle of each adhesive tape correspond to a corner of the middle frame 20 . That is, the dimensional tolerance requirements for each tape are relatively low, which is convenient for production. However, if a plurality of avoidance gaps are arranged on a tape at intervals, the side has higher requirements on the distance between two adjacent avoidance gaps, and no large error is allowed. Otherwise, it is difficult to align with the corresponding middle frame corners respectively.
  • the tape assembly 50 includes four tapes only for example, and the middle frame 20 may also have six or other numbers.
  • the adhesive tape assembly 50 includes a plurality of adhesive tapes, wherein the plurality of adhesive tapes can be in a one-to-one correspondence with the plurality of crimped corners of the middle frame 20 .
  • the adhesive tape assembly 50 can also include only one adhesive tape 55, and the same side of the adhesive tape 55 is spaced apart from the avoidance gap U1', the avoidance gap U2', the avoidance gap U3' and the avoidance gap U4', the avoidance gap U1',
  • the avoidance gap U2', the avoidance gap U3' and the avoidance gap U4' are folded to form an opening g1', an opening g2', an opening g3' and an opening g3' in turn, and the avoidance gap U1', the avoidance gap U2', the avoidance gap U3' and the avoidance gap
  • the gaps U4' are respectively set corresponding to the four corners of the middle frame 20, and the setting form may refer to the form of avoiding the gap U1.
  • the number of avoidance notches of the tape 55 can be adjusted according to the number of folded corners of the middle frame 20 , such as 3, 5 or other numbers.
  • the adhesive tape assembly 50 can also include only one adhesive tape 55, it is only necessary to splicing and aligning one end of the adhesive tape 55 with the other end, instead of multiple splicing and alignment.
  • the tape assembly 50 only needs to include at least one tape that is spliced end-to-end through the ends; the end splicing forms can be various, and in each pair of spliced ends, the projection of one end in the width direction is the same as the width of the other end.
  • the projections in the directions overlap to ensure that by turning one segment of the tape around the corner position, the ends of each pair of splices above can be in contact, eliminating gaps and preventing dust from entering.
  • 10a shows a schematic diagram of the tape 51 and the tape 52 at B in FIG. 4 before the alignment, the tape 51 is close to the end of the tape 52 to form a V-shaped protrusion D1, and the V-shaped protrusion D1 is formed by a side edge set at an angle f3 is surrounded by side f4, the end of the tape 52 close to the tape 51 has a V-shaped depression V1, and the V-shaped depression V1 has a side f1 and a side f2 arranged at an included angle. Due to manufacturing tolerances, the side f3 There is a matching gap between the side edge f1 and the side edge f2 and the side edge non.
  • the tape 52 is rotated clockwise (in the T1 direction) to swing around the position where the gap U1 is avoided, and the side f1 of the V-shaped protrusion D1 and the V-shaped depression Side f3 of V1 contacts.
  • the ends of the V-shaped protrusions D1 are formed by rotating counterclockwise (T2 direction), and the side f2 of the V-shaped protrusion D1 contacts with the side f4 of the V-shaped depression V1.
  • one end has a V-shaped depression
  • the other end has a V-shaped protrusion
  • the V-shaped protrusion fits in the V-shaped depression and is connected with the V-shaped depression. splicing the edges.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

一种显示装置(01)及胶带（51、52、53、54），显示面板(10)、胶带组件(50)和中框(20)，中框(20)呈环形、且具有多个折角，显示面板(10)安装于中框(20)，胶带组件(50)位于中框(20)和显示面板(10)之间、且沿中框(20)的边缘延伸，胶带组件(50)位于每个折角的部分具有弯折结构，弯折结构为由具有开口的一体结构在开口处弯折而形成的结构。在显示装置(01)中，通过使胶带组件(50)位于每个折角两侧的分段具有一体式结构，可避免灰尘等异物从折角处的间隙进入显示面板(10)后侧，提升了显示画质。并且，间隙的两个侧边在中框(20)上的正投影无交叠，可避免间隙两侧的结构叠加形成冗余部，而让显示面板(10)无法与中框(20)平整贴合的情况。

Description

一种显示装置及胶带
本申请要求在2020年11月24日提交中国专利局、申请号为202022746610.X、申请名称为“一种显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，特别涉及一种显示装置及胶带。
背景技术
显示装置(如液晶显示器)通常包括中框，以及分列于中框两侧的背板和显示面板，背板和显示面板之间通过多条首尾连接的泡棉胶带粘结，相邻的泡棉胶带之间在中框的拐角处拼接，但是，中框和泡棉胶带在实际生产过程中都存在公差，导致在中框的拐角处存在缝隙且难以消除。
图1表示出泡棉胶带在中框表面的分布情况，图2表示出图1中的A处局部放大图，参考图1和图2，中框M包括四条首尾相连的侧边框，以围成一个矩形的中框，泡棉胶带a、泡棉胶带b、泡棉胶带c和泡棉胶带d一一对应的黏贴在中框的四个侧边框上、且首尾拼接，拼接位置均在中框的角部。以泡棉胶带a和泡棉胶带d的拼接为例，由于生产公差的存在(通常的中框生产公差在±0.2mm左右，泡棉的生产公差在±0.25mm-0.3mm)，两者之间总是存在间隙k，外界的灰尘等异物容易从此间隙k进入显示面板后，而影响画质。即便是分别在泡棉胶带a的端部设置较窄的延伸部a1，在泡棉胶带d的端部设置较窄的延伸部d1，通过延伸部a1和延伸部d1的交错拼接可以延长上述间隙k，但是，仍无法完全杜绝灰尘进入，且当延伸部过窄时易产生裁切偏离问题，贴附后离型膜与泡棉胶带分离，泡棉胶带易破损；即便通过偏移泡棉胶带d的位置使其于泡棉胶带a相连，最终间隙仍然会积累在另外的两个泡棉胶带之间。
发明内容
本申请公开了一种显示装置及胶带，用于消除泡棉胶带中的间隙，避免灰尘等异物进入显示面板后，确保显示画质。
为达到上述目的，本申请提供以下技术方案：
第一方面，提供一种显示装置，该显示装置包括：
显示面板、胶带组件和中框，所述中框呈环形、且具有多个折角，所述显示面板安装于所述中框，所述胶带组件位于所述中框和所述显示面板之间、且沿所述中框的边缘延伸，所述胶带组件位于每个所述折角的部分具有弯折结构，弯折结构为由具有开口的一体结构在开口处弯折而形成的结构。
在上述显示装置中，通过使胶带组件位于每个折角两侧的分段具有一体式结构，可避免灰尘等异物从折角处的间隙进入显示面板后侧，提升了显示画质。并且，间隙的两个侧边在中框上的正投影无交叠，可避免间隙两侧的结构叠加形成冗余部，而让显示面板无法与中框平整贴合的情况。
可选地，所述开口的两个侧边之间的夹角α满足：0°≤α≤45°。
可选地，每个所述开口的底端至对应胶带中背离所述开口的侧边之间的距离介于0.2mm至0.5mm之间。
可选地，所述胶带组件包括至少一个通过端部首尾拼接的胶带；
每一对拼接的所述端部中，一个端部在宽度方向上的投影与另一个端部在宽度方向上的投影交叠。
可选地，所述胶带组件包括多条胶带，其中，所述多条胶带与所述多个折角一一对应。
可选地，所述胶带组件包括一条胶带，其中，所述胶带与所述多个折角分别对应。
可选地，每一对拼接的所述端部中，一个端部具有V字型凹陷，另一个端部具有V字型凸起，且所述V字型凸起配合于所述V字型凹陷中，并与所述V字型凹陷的边缘接触。
可选地，每一对拼接的所述端部中，每个所述端部形成倾斜边，一个所 述端部的倾斜边与另一个所述端部的倾斜边接触。
可选地，每一对拼接的所述端部中，每个端部具有一个矩形凸起，且一个端部的矩形凸起与另一个端部的矩形凸起交错设置且接触。
第二方面，提供了一种胶带，该胶带包括胶带主体，所述胶带主体具有至少一个用于避免形成冗余部的避让缺口，当所述胶带主体在所述避让缺口处弯折时，所述避让缺口的两个侧边在中框上的投影无交叠。
相对于现有技术，上述胶带具有与上述技术方案提供的显示装置相同的有益效果，在此不再赘述。
可选地，所述避让缺口由夹角呈β的两条侧边围成，其中，所述夹角β满足：90°≤β≤135°。
可选地，所述胶带还包括离型膜，所述离型膜粘附在所述胶带主体的表面，且所述离型膜的一端相对于所述胶带主体的对应端部凸出。
可选地，每个所述避让缺口的谷底至所述胶带背离所述避让缺口的侧边之间的距离介于0.2mm至0.5mm之间。
附图说明
图1表示出泡棉胶带在中框表面的分布情况；
图2表示出图1中的A处局部放大图；
图3表示出本申请实施例提供的显示装置的局部剖视图；
图4表示出本申请实施例提供的一种显示装置中胶带组件与中框配合的示意图；
图5表示出图4所示显示装置中胶带51弯折前的示意图；
图6表示出图4所示显示装置中胶带51的侧视图；
图7a表示出图4所示显示装置中胶带51弯折后的示意图；
图7b表示出图7a所示胶带的一种变形；
图8表示出本申请实施例提供的另一种显示装置中胶带组件黏贴前的示意图；
图9表示出图8对应的实施例中胶带组件与中框配合的示意图；
图10a表示出图4中B处胶带51和胶带52对位前的示意图；
图10b表示出图4中B处胶带51和胶带52对位后的一种示意图；
图10c表示出图4中B处胶带51和胶带52对位后的另一种示意图；
图11表示出本申请实施例提供的另一种显示装置中两个相邻胶带配合的示意图；
图12表示出本申请实施例提供的另一种显示装置中两个相邻胶带配合的示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
结合图3至图7a，本申请实施例提供的显示装置01包括：显示面板10、胶带组件50和中框20，中框20呈环形、且具有多个折角，显示面板10安装于中框20，胶带组件50位于中框20和显示面板10之间、且沿中框20的边缘延伸，胶带组件50位于每个折角的部分具有弯折结构，弯折结构为由具有开口的一体结构在开口处弯折而形成的结构。
在上述显示装置01中，通过使胶带组件50位于每个折角两侧的分段具有一体式结构，消除了胶带组件50在环形中框20的折角处的间隙，避免灰尘等异物从折角处的间隙进入显示面板10后，提升了显示画质。并且，在胶带组件50与每个折角对应的位置设置避让缺口U1，可避免因胶带组件50在折角处弯折凸起形成冗余部，而导致显示面板10于中框20不能平整贴合的技术问题。
示例性地，具体地可参考图3，本申请实施例提供的显示装置01包括：显示面板10、中框20、背板40、胶带组件50和背光模组30，中框20呈环 形，中框20包括环形的围壁22和环形的支撑台21，支撑台21连接于围壁22的顶部，显示面板10设置于支撑台21上，且胶带组件50设置于显示面板10和支撑台21之间，以将显示面板10和支撑台21粘结固定。显示装置01还包括围壁22背离显示面板10的一侧还设有背板40，背板40和显示面板10之间设有背光模组30，背光模组30示例性地包括沿远离背板40的方向依次设置的反射片31、导光板32和光学膜材33，以为显示面板10提供背光。
参考图4，中框20具体呈矩形结构，围壁22和支撑台21均沿矩形轨迹延伸。胶带组件50包括首尾依次拼接的胶带51、胶带52、胶带53和胶带54，其中，胶带(51、52、53和54)的中部分别一一对应地与一个中框20的四个折角对应，胶带(51、52、53和54)与折角对应的位置有一个由避让缺口折叠形成的开口(g1、g2、g3和g4)，如图5中的避让缺口U1折叠后形成图6中开口g1，并且，开口g1的两个侧边(对应于图5中的避让缺口U1的两个侧边)在支撑台21表面的正投影没有交叠，以确保避让缺口U1两侧的结构不会搭接形成比单层胶带较厚的冗余部。下面以胶带51为例，说明其结构和黏贴过程：
参考图5，胶带51包括胶带主体，胶带主体包括一体式结构的分段51a和分段51b，避让缺口U1形成于分段51a和分段51b的连接处，该避让缺口U1具体地可以包括侧边p1和侧边p2两个侧边，侧边p1和侧边p2均可以为直边，且侧边p1和侧边p2的夹角为β。在图5中，夹角β为90°，且侧边p1和侧边p2的长度相等。
参考图6，胶带51的表面还贴附有离型膜r1，离型膜r1略长于分段51a和分段51b的长度之和，离型膜r1粘附在胶带主体的表面，且离型膜r1的一端相对于胶带主体的对应端部凸出，以便于在将胶带51贴附在支撑台21上时，方便揭下离型膜r1。
参考图7a，将弯折分段51a和分段51b，使两者延伸方向的夹角大致为90°，以与支撑台21的折角位置相适应。分段51a靠近折角51b的端部与折角51b靠近折角51a的端部弯折连接形成弯折结构，开口g1位于该弯折结构 的内侧，其中，由于避让缺口U1的存在，在弯折分段51a和分段51b时，分段51a和分段51b的连接处向中间靠拢不会搭接形成凸起的冗余部，从而，避免显示面板10与支撑台21不能平整地贴合的情况。其中，侧边p1和侧边p2相互垂直可以确保分段51a和分段51b呈90°时，侧边p1和侧边p2恰好拼接在一起而不会形成凸起的冗余部。即侧边p1和侧边片之间的夹角为0°。
但是，应当理解的是，侧边p1和侧边p2相互垂直仅仅是示例性地。
理论上，避让缺口U1中夹角β只要满足以下条件：90°≤β＜180，即可保证分段51a和分段51b弯折为90°时不会形成冗余部。β具体可以是90°、100°、120°、150°和175°。但是，为了确保避让缺口U1具有足够的深度又不至于避让缺口U1的宽度过大，(避让缺口U1的宽度过大会使胶带51有较长一段距离有较窄的宽度)可以将夹角β的条件可限制如下：90°≤β≤135，β具体可以是90°、100°、105°、110°、120°和135°。避让缺口U1折叠后形成的开口g1的两个侧边p1和p2之间的夹角α的范围介于0°至45°之间，具体可以是0°、10°、20°、30°和45°等。这仅仅是示例性地，只要确保开口g1的侧边p1和p2在中框上的正投影无交叠即可。在图7a中，夹角α为0°，在图7b中夹角α大于0°。
而为了分段51a和分段51b能够稳定连接，且同时兼顾避让缺口U1应有一定的深度，谷底至胶带51背离上述避让缺口U1的侧边的距离t具有一定的宽度，例如距离t介于0.2mm至0.5mm之间，具体可以是0.2mm、0.3mm、0.4mm和0.5mm。避让缺口U1折叠后，开口g1的底部与胶带51a的另一侧边之间的距离也是t，t介于0.2mm至0.5mm之间。
应当理解的是，侧边p1和侧边p2长度相等仅仅是示例性地，可以确保分段51a和分段51b弯折为90°时，两者可以对齐，但两者长度也可以不相等。
其中，胶带52、胶带53和胶带54的结构和设置方式参考胶带51。
通过使胶带组件50包括胶带51、胶带52、胶带53和胶带54多条胶带，每个胶带的中部设置一个避让缺口，只需要使每个胶带的中部的避让缺口与 中框20的一个折角对应即可，对于每条胶带的尺寸公差要求较低，便于生产。而如果在一条胶带上间隔设置多个避让缺口，侧对于两个相邻避让缺口之间的间距要求较高，不允许存在较大的误差，否则，难以分别与对应的中框折角对位。
此外，胶带组件50包括四条胶带仅仅是示例性地，中框20也可以有6个或者其他数量。
的折角，胶带组件50包括多条胶带，其中，多个胶带与中框20的多个折角一一对应即可。
还可以在两条经过中框20的折角的胶带之间增添一条或多条沿直线延伸的胶带，且每相邻的两条胶带都是通过端部拼接。
参考图8和图9，胶带组件50还可以仅包括一条胶带55，胶带55的同一侧间隔设置避让缺口U1’、避让缺口U2’、避让缺口U3’和避让缺口U4’，避让缺口U1’、避让缺口U2’、避让缺口U3’和避让缺口U4’折叠后依次形成开口g1’、开口g2’、开口g3’和开口g3’，避让缺口U1’、避让缺口U2’、避让缺口U3’和避让缺口U4’分别与中框20的四个折角对应设置，设置形式可参考避让缺口U1形式。胶带55的避让缺口数量可以随中框20的折角的数量调整，如3个、5个或其他数量。胶带组件50还可以仅包括一条胶带55时，仅需要将胶带55的一端与另一端拼接对位即可，而不需要多次拼接对位。
胶带组件50只要包括至少一个通过端部首尾拼接的胶带；端部拼接的形式可以有多种，每一对拼接的端部中，一个端部在宽度方向上的投影与另一个端部在宽度方向上的投影交叠，以确保通过转动胶带的一个分段绕折角位置转动，使上述每对拼接的端部可以接触，消除缝隙，避免灰尘进入。
下面对相邻胶带拼接的具体形式进行介绍。图10a表示出图4中B处胶带51和胶带52对位前的示意图，胶带51靠近胶带52的端部形成V字型凸起D1，V字型凸起D1由呈夹角设置的侧边f3和侧边f4围成，胶带52靠近胶带51的端部具有V字型凹陷V1，V字型凹陷V1具有呈夹角设置的侧边f1和侧边f2，由于存在制造公差，侧边f3与侧边f1，以及，侧边f2与侧边 非之间存在配合缝隙。为此，在拼接胶带51和胶带52时，如图10b，应案顺时针(T1方向)转动胶带52绕避让缺口U1所在位置摆动，V字型凸起D1的侧边f1与V字型凹陷V1的侧边f3接触。类似地，参考图10c，逆时针(T2方向)转动形成V字型凸起D1的端部，V字型凸起D1的侧边f2与V字型凹陷V1的侧边f4接触。只要每一对拼接的端部中，一个端部具有V字型凹陷，另一个端部具有V字型凸起，且V字型凸起配合于V字型凹陷中，并与V字型凹陷的边缘拼接即可。
参考图11，以拼接胶带51和胶带52为例，相互拼接的端部还可以有以下拼接形式：胶带51的端部形成倾斜边C1，胶带52的端部形成倾斜边C2，在拼接过程中也可以通过摆动胶带51使倾斜边C1与倾斜边C2相互接触。
参考图12，再如，胶带51的端部剪裁形成矩形凸起E1，胶带52的端部剪裁形成矩形凸起E2，矩形凸起E1位于胶带51的端部偏上位置，矩形凸起E2位于胶带52的端部偏下位置，在拼接过程中也可以通过摆动胶带51使矩形凸起E1与矩形凸起E2相互接触。矩形凸起E1与矩形凸起E2交错设置，且宽度之和等于胶带51的宽度和胶带52的宽度，其它对拼接的端部中，可参考胶带51的端部和胶带52的端部。
基于相同的申请构思，本申请实施例还提供了一种胶带，该胶带包括胶带主体，胶带主体具有至少一个避让缺口，避让缺口用于与中框的折角对应，当胶带主体在避让缺口处弯折时，避让缺口的两个侧边在中框上的投影无交叠。
该胶带的具体实施方式可以参考前述实施例提供的显示装置中的胶带。例如针对图5、图6和图8对应的实施例。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (13)

  1. 一种显示装置，其特征在于，包括：
    显示面板、胶带组件和中框，所述中框呈环形、且具有多个折角，所述显示面板安装于所述中框，所述胶带组件位于所述中框和所述显示面板之间、且沿所述中框的边缘延伸，所述胶带组件位于每个所述折角的部分具有弯折结构，弯折结构为由具有开口的一体结构在开口处弯折而形成的结构。
  2. 根据权利要求1所述的显示装置，其特征在于，所述开口的两个侧边之间的夹角α满足：0°≤α≤45°。
  3. 根据权利要求1所述的显示装置，其特征在于，每个所述开口的底端至对应胶带中背离所述开口的侧边之间的距离介于0.2mm至0.5mm之间。
  4. 根据权利要求1所述的显示装置，其特征在于，所述胶带组件包括至少一个通过端部首尾拼接的胶带；
    每一对拼接的所述端部中，一个端部在宽度方向上的投影与另一个端部在宽度方向上的投影交叠。
  5. 根据权利要求4所述的显示装置，其特征在于，所述胶带组件包括多条胶带，其中，所述多条胶带与所述多个折角一一对应。
  6. 根据权利要求4所述的显示装置，其特征在于，所述胶带组件包括一条胶带，其中，所述胶带与所述多个折角分别对应。
  7. 根据权利要求4所述的显示装置，其特征在于，每一对拼接的所述端部中，一个端部具有V字型凹陷，另一个端部具有V字型凸起，且所述V字型凸起配合于所述V字型凹陷中，并与所述V字型凹陷的边缘接触。
  8. 根据权利要求4所述的显示装置，其特征在于，每一对拼接的所述端部中，每个所述端部形成倾斜边，一个所述端部的倾斜边与另一个所述端部的倾斜边接触。
  9. 根据权利要求4所述的显示装置，其特征在于，每一对拼接的所述端部中，每个端部具有一个矩形凸起，且一个端部的矩形凸起与另一个端部的 矩形凸起交错设置且接触。
  10. 一种胶带，其特征在于，包括胶带主体，所述胶带主体具有至少一个用于避免形成冗余部的避让缺口，当所述胶带主体在所述避让缺口处弯折时，所述避让缺口的两个侧边在中框上的投影无交叠。
  11. 根据权利要求10所述的胶带，其特征在于，所述避让缺口由夹角呈β的两条侧边围成，其中，所述夹角β满足：90°≤β≤135°。
  12. 根据权利要求10所述的胶带，其特征在于，所述胶带还包括离型膜，所述离型膜粘附在所述胶带主体的表面，且所述离型膜的一端相对于所述胶带主体的对应端部凸出。
  13. 根据权利要求10所述的胶带，其特征在于，每个所述避让缺口的谷底至所述胶带背离所述避让缺口的侧边之间的距离介于0.2mm至0.5mm之间。
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