WO2019075809A1

Movatterモバイル変換

Info

Publication number: WO2019075809A1
Application number: PCT/CN2017/110820
Authority: WO
Inventors: 谢思
Original assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Current assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date: 2017-10-20
Filing date: 2017-11-14
Publication date: 2019-04-25
Anticipated expiration: 2020-04-20
Also published as: CN107564417A; CN107564417B

Abstract

Translated fromChinese

本发明提供了一种柔性显示面板背板，包括第一背板，所述第一背板包括至少两块彼此相连的第一子背板，相邻两块第一子背板之间通过可弯折的弯折部相互连接。本发明还提供了一种柔性显示器，包括柔性显示面板，还包括所述的柔性显示面板背板。与现有技术相比，通过将用于承载柔性显示面板的背板设置为至少两块，两者之间通过弯折部连接，实现了柔性显示面板弯折角度最大化，而且结构简单，成本低。The present invention provides a flexible display panel backplane, including a first backplane, the first backplane includes at least two first sub-backplanes connected to each other, and two adjacent first sub-backplanes are passed between The bent bent portions are connected to each other. The present invention also provides a flexible display comprising a flexible display panel, and a flexible display panel backsheet. Compared with the prior art, by setting the backboard for carrying the flexible display panel to at least two pieces, the two are connected by the bending part, thereby maximizing the bending angle of the flexible display panel, and the structure is simple and the cost is low. low.

Description

Translated fromChinese

柔性显示面板背板及柔性显示器Flexible display panel back panel and flexible display

技术领域Technical field

本发明涉及一种液晶显示面板技术，特别是一种柔性显示面板背板及柔性显示器。The invention relates to a liquid crystal display panel technology, in particular to a flexible display panel back panel and a flexible display.

背景技术Background technique

随着信息技术和移动通讯技术的发展，能够显示视觉图像的显示装置也得到发展。诸如液晶显示(LCD)装置和有机发光显示(OLED)装置之类的平板显示装置被开发并使用。With the development of information technology and mobile communication technology, display devices capable of displaying visual images have also been developed. Flat panel display devices such as liquid crystal display (LCD) devices and organic light emitting display (OLED) devices are developed and used.

一般来说，LCD装置包括液晶面板，液晶面板包括上基板(彩色滤光片(CF)基板)和下基板(薄膜晶体管阵列(TFT)基板)以及位于上基板与下基板之间的液晶层(LC)。液晶层被像素电极与公共电极之间产生的电场驱动，以显示图像。OLED装置包括有机发光二极管，有机发光二极管包括阳极、阴极以及位于阳极与阴极之间的有机发光层。在有机发光二极管中，分别来自阳极和阴极的空穴和电子组合，使得从有机发光层发射光，以显示图像。In general, an LCD device includes a liquid crystal panel including an upper substrate (a color filter (CF) substrate) and a lower substrate (a thin film transistor array (TFT) substrate) and a liquid crystal layer between the upper substrate and the lower substrate ( LC). The liquid crystal layer is driven by an electric field generated between the pixel electrode and the common electrode to display an image. The OLED device includes an organic light emitting diode including an anode, a cathode, and an organic light emitting layer between the anode and the cathode. In an organic light emitting diode, holes and electrons from the anode and the cathode, respectively, are combined such that light is emitted from the organic light emitting layer to display an image.

近来，对通过使用柔性基板制造的可折叠显示装置的需求增加。可折叠显示装置被折叠成可手提，并且展开来显示图像。就是说，通过可折叠显示装置，能够提供大尺寸图像显示，并且提高了显示装置的便携性，但是如何实现折叠，成为业界一直有待解决的问题。Recently, the demand for a foldable display device manufactured by using a flexible substrate has increased. The foldable display device is folded to be portable and unfolded to display an image. That is to say, the large-size image display can be provided by the foldable display device, and the portability of the display device is improved, but how to realize the folding has become a problem that has been solved in the industry.

发明内容Summary of the invention

为克服现有技术的不足，本发明提供一种柔性显示面板背板及柔性显示器，从而实现折叠，而且结构简单。In order to overcome the deficiencies of the prior art, the present invention provides a flexible display panel back panel and a flexible display, thereby achieving folding, and having a simple structure.

本发明提供了一种柔性显示面板背板，包括第一背板，所述第一背板包括至少两块彼此相连的第一子背板，相邻两块第一子背板之间通过可拉伸且弯折的弯折部相互连接。The present invention provides a flexible display panel backplane, including a first backplane, the first backplane includes at least two first sub-backplanes connected to each other, and two adjacent first sub-backplanes are passed between The bent and bent bent portions are connected to each other.

进一步地，还包括第二背板，所述第二背板连接在第一背板的一侧表面上，所述第二背板包括与第一子背板数量相等的第二子背板，所述第二子背板与第一子背板相对设置。Further, the second backplane is further connected to one side surface of the first backboard,The second backplane includes a second sub-backplane equal in number to the first sub-backplane, and the second sub-backplane is disposed opposite to the first sub-backplane.

进一步地，相邻两块第二子背板相对的一侧边上分别设有延伸部，两个延伸部相对的一侧表面上设有用于将相邻两块第二子背板拼接的拼接部。Further, an opposite side of the two adjacent second sub-backboards is respectively provided with an extending portion, and the opposite side surfaces of the two extending portions are provided with splicing for splicing the adjacent two second sub-back boards unit.

进一步地，相邻两个延伸部相对的一侧表面上设有拼接槽，所述拼接部设于拼接槽上，当相邻两块第二子背板相互拼接后，相邻两块第二子背板的两侧表面分别处于同一平面上。Further, a splicing groove is disposed on an opposite side surface of the two adjacent extending portions, and the splicing portion is disposed on the splicing groove. When two adjacent second sub-back plates are spliced to each other, two adjacent blocks are second. Both side surfaces of the sub-back plate are respectively on the same plane.

进一步地，所述拼接部为齿状结构。Further, the joint portion is a toothed structure.

进一步地，所述齿状结构为矩形齿。Further, the tooth structure is a rectangular tooth.

进一步地，所述第一背板的硬度小于第二背板的硬度。Further, the hardness of the first backing plate is smaller than the hardness of the second backing plate.

进一步地，所述弯折部的表面设有沿弯折部的长度方向间隔设置的环形凸起。Further, the surface of the bent portion is provided with an annular protrusion spaced apart along the longitudinal direction of the bent portion.

本发明还提供了一种柔性显示器，包括柔性显示面板，还包括所述的柔性显示面板背板。The present invention also provides a flexible display comprising a flexible display panel, and a flexible display panel backsheet.

进一步地，所述柔性显示面板显示面的非显示区域上设有边框。Further, a non-display area of the display surface of the flexible display panel is provided with a frame.

本发明与现有技术相比，通过将用于承载柔性显示面板的背板设置为至少两块，两者之间通过弯折部连接，实现了柔性显示面板弯折角度最大化，而且结构简单，成本低。Compared with the prior art, the present invention provides a flexible display panel with a maximum bending angle and a simple structure by arranging the backing plate for carrying the flexible display panel into at least two pieces, which are connected by a bent portion. ,low cost.

附图说明DRAWINGS

图1是本发明柔性显示器的结构示意图；1 is a schematic structural view of a flexible display of the present invention;

图2是本发明第一背板的结构示意图；2 is a schematic structural view of a first backboard of the present invention;

图3是图2中标示A的局部放大图；Figure 3 is a partial enlarged view of the mark A in Figure 2;

图4是本发明第二背板的结构示意图；4 is a schematic structural view of a second backboard of the present invention;

图5是图4中标示B的局部放大图；Figure 5 is a partial enlarged view of the mark B in Figure 4;

图6是图5中拼接部分离的示意图；Figure 6 is a schematic view showing the separation of the joint portion in Figure 5;

图7是本发明柔性显示器弯折后的示意图。Figure 7 is a schematic illustration of the flexible display of the present invention after being bent.

具体实施方式Detailed ways

下面结合附图和实施例对本发明作进一步详细说明。The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

如图1和图2所示，本发明的柔性显示面板背板包括第一背板1，所述第一背板1包括至少两块彼此相连的第一子背板11，所述相邻两块第一子背板11之间通过可拉伸且弯折的弯折部12相互连接，具体地，第一子背板11的尺寸相等，第一子背板11的设置数量为两块。As shown in FIG. 1 and FIG. 2, the flexible display panel backplane of the present invention includes afirst backplane 1, and thefirst backplane 1 includes at least twofirst sub-backplanes 11 connected to each other, the adjacent two Thefirst sub-backboards 11 are connected to each other by a stretchable andbent bent portion 12. Specifically, thefirst sub-backboards 11 are equal in size, and thefirst sub-backboards 11 are disposed in two pieces.

作为本发明的一种实施方式，如图3所示，弯折部12的表面设有沿弯折部12的长度方向间隔设置的环形凸起121，从而使弯折部12能够弯折任意角度，所述弯折部12由具有弹性可变形材料制成，具体为硅胶；在弯折时，对弯折部12的内部进行挤压，而环形凸起121则拉伸，最终实现了弯折部12最大角度的弯折；但本发明不限于此，弯折部12还可以采用波纹管或者铰链。As an embodiment of the present invention, as shown in FIG. 3, the surface of thebent portion 12 is provided withannular projections 121 spaced apart along the longitudinal direction of thebent portion 12, so that thebent portion 12 can be bent at any angle. Thebent portion 12 is made of an elastically deformable material, specifically a silica gel; when bent, the inside of thebent portion 12 is pressed, and theannular protrusion 121 is stretched, and finally the bending is realized. Theportion 12 is bent at a maximum angle; however, the present invention is not limited thereto, and thebent portion 12 may also be a bellows or a hinge.

如图1和图4所示，本发明的柔性显示面板背板还包括了一个尺寸与第一背板1的尺寸相同的第二背板2，第二背板2连接固定在第一背板1的一侧表面上，所述第二背板2包括与第一子背板11数量相等的第二子背板21，所述第二子背板21与第一子背板11相对设置，第二子背板21的尺寸与第一子背板11的尺寸相同；具体地，第二背板2大的厚度小于第一背板1的厚度，且第二背板2的硬度大于第一背板1的硬度，从而实现了对柔性显示面板的支撑作用。As shown in FIG. 1 and FIG. 4, the flexible display panel backplane of the present invention further includes asecond backplane 2 having the same size as thefirst backplane 1, and thesecond backplane 2 is connected and fixed to the first backplane. Thesecond backing plate 2 includes asecond sub-backboard 21 equal in number to thefirst sub-backboard 11 , and thesecond sub-backboard 21 is disposed opposite to thefirst sub-backboard 11 , The size of thesecond sub-backboard 21 is the same as the size of thefirst sub-backboard 11; specifically, thesecond backing plate 2 has a larger thickness than thefirst backing plate 1, and thesecond backing plate 2 has a hardness greater than that of the first The hardness of thebackboard 1 enables the support of the flexible display panel.

如图5和图6所示，相邻两块第二子背板21相对的一侧边上分别设有延伸部22，两个延伸部22相对的一侧表面上设有用于将相邻两块第二子背板21拼接的拼接部23，从而实现在柔性显示面板展开后能够起到支撑的作用并对第一背板起到限位的作用。具体地，相邻两个延伸部22相对的一侧表面上分别设有拼接槽24，所述拼接部23设于拼接槽24上，拼接槽24的深度为第二子背板21厚度的二分之一，实现了当相邻两块第二子背板21相互拼接后，相邻两块第二子背板21的两侧表面分别处于同一平面上，优选地，两块第二子背板21的结构完全相同。As shown in FIG. 5 and FIG. 6 , the opposite sides of the two adjacentsecond sub-backboards 21 are respectively provided with an extendingportion 22, and the opposite side surfaces of the two extendingportions 22 are provided for the adjacent two sides. Thesplicing portion 23 of thesecond sub-backboard 21 is spliced, thereby achieving the function of supporting the flexible display panel after deployment and limiting the first backing plate. Specifically, asplicing groove 24 is respectively disposed on an opposite side surface of the adjacent two extendingportions 22, and thesplicing portion 23 is disposed on thesplicing groove 24. The depth of thesplicing groove 24 is the thickness of thesecond sub-back plate 21 One of the parts, when two adjacentsecond sub-backboards 21 are spliced to each other, adjacentThe two side surfaces of the twosecond sub-backboards 21 are respectively on the same plane. Preferably, the structures of the twosecond sub-backboards 21 are identical.

作为本发明的一种实施方式，所述拼接部23为齿状结构；位于两块第二子背板21上的齿状结构的齿牙的设置为相反，从而实现相互咬合，具体地，所述齿状结构为矩形齿，但本发明不限于此，例如为梯形齿、三角形齿等。As an embodiment of the present invention, thesplicing portion 23 is a tooth-like structure; the teeth of the tooth structure located on the twosecond sub-backboards 21 are disposed oppositely, thereby achieving mutual engagement, specifically, The toothed structure is a rectangular tooth, but the present invention is not limited thereto, and is, for example, a trapezoidal tooth, a triangular tooth, or the like.

本发明的柔性显示面板背板通过双层结构，一层实现拼接，一层实现弯折来实现弯折区域R值(半径值)最大化，同时解决了弯折区拼接设计的复杂性难题。The flexible display panel back plate of the invention adopts a double-layer structure, one layer realizes splicing, and one layer realizes bending to maximize the R value (radius value) of the bending region, and at the same time solves the complexity problem of the splicing design of the bending region.

如图1所示，本发明还公开了一种柔性显示器，包括柔性显示面板3，还包括柔性显示面板背板，所述柔性显示面板背板包括第一背板1，所述第一背板1包括至少两块彼此相连的第一子背板11，所述相邻两块第一子背板11之间通过可拉伸且弯折的弯折部12相互连接，具体地，第一子背板11的尺寸相等，第一子背板11的设置数量为两块。As shown in FIG. 1 , the present invention also discloses a flexible display, comprising aflexible display panel 3 , further comprising a flexible display panel back plate, the flexible display panel back plate comprising afirst back plate 1 , thefirst back plate 1 comprising at least twofirst sub-backplanes 11 connected to each other, the two adjacentfirst sub-backs 11 being connected to each other by a stretchable andbent bend 12, in particular, the first sub- Theback plates 11 are equal in size, and the number of thefirst sub-back plates 11 is two.

如图1和图4所示，柔性显示面板背板还包括了一个尺寸与第一背板1的尺寸相同的第二背板2，第二背板2连接固定在第一背板1的一侧表面上，所述第二背板2包括与第一子背板11数量相等的第二子背板21，所述第二子背板21与第一子背板11相对设置，第二子背板21的尺寸与第一子背板11的尺寸相同；具体地，第二背板2大的厚度小于第一背板1的厚度，且第二背板2的硬度大于第一背板1的硬度，从而实现了对柔性显示面板的支撑作用。As shown in FIG. 1 and FIG. 4, the flexible display panel backplane further includes asecond backplane 2 having the same size as thefirst backplane 1, and thesecond backplane 2 is connected and fixed to thefirst backplane 1. On the side surface, thesecond back board 2 includes asecond sub-back board 21 equal in number to thefirst sub-back board 11, and thesecond sub-back board 21 is disposed opposite to thefirst sub-back board 11, the second sub- The size of theback plate 21 is the same as the size of thefirst sub-back plate 11; specifically, thesecond back plate 2 has a larger thickness than thefirst back plate 1, and thesecond back plate 2 has a hardness greater than that of thefirst back plate 1. The hardness, thus achieving the support of the flexible display panel.

柔性显示面板3设置在第二背板2背离第一背板1的一侧表面上，柔性显示面板3与第一背板1以及第二背板2均对齐设置，柔性显示面板3的固定方式采用现有技术，在此不做具体限定。Theflexible display panel 3 is disposed on a side surface of thesecond back panel 2 facing away from thefirst back panel 1 , and theflexible display panel 3 is disposed in alignment with thefirst back panel 1 and thesecond back panel 2 , and theflexible display panel 3 is fixed. The prior art is not specifically limited herein.

如图5和图6所示，相邻两块第二子背板21相对的一侧边上分别设有延伸部22，两个延伸部22相对的一侧表面上设有用于将相邻两块第二子背板21拼接的拼接部23，从而实现在柔性显示面板展开后能够起到支撑的作用并对第一背板起到限位的作用。具体地，相邻两个延伸部22相对的一侧表面上分别设有拼接槽24，所述拼接部23设于拼接槽24上，拼接槽24的深度为第二子背板21厚度的二分之一，实现了当相邻两块第二子背板21相互拼接后，相邻两块第二子背板21的两侧表面分别处于同一平面上，优选地，两块第二子背板21的结构完全相同。As shown in FIG. 5 and FIG. 6 , the opposite sides of the two adjacentsecond sub-backboards 21 are respectively provided with an extendingportion 22, and the opposite side surfaces of the two extendingportions 22 are provided for the adjacent two sides. Thesplicing portion 23 of thesecond sub-backboard 21 is spliced, thereby achieving the function of supporting the flexible display panel after deployment and limiting the first backing plate. Specifically, asplicing groove 24 is respectively disposed on an opposite side surface of the adjacent two extendingportions 22, and thesplicing portion 23 is disposed on thesplicing groove 24. The depth of thesplicing groove 24 is the thickness of thesecond sub-back plate 21 One of the twosub-backs 21 of the twoadjacent sub-backs 21 are respectively in the same plane, preferably two second sub-backs. The structure of theboard 21 is identical.

作为本发明的一种实施方式，所述拼接部23为齿状结构；位于两块第二子背板21上的齿状结构的齿牙的设置为相反，从而实现相互咬合，具体地，所述齿状结构为矩形齿，但本发明不限于此，例如为梯形齿、三角形齿等。As an embodiment of the present invention, the splicingportion 23 is a tooth-like structure; the teeth of the tooth structure located on the twosecond sub-backboards 21 are disposed oppositely, thereby achieving mutual engagement, specifically, The toothed structure is a rectangular tooth, but the present invention is not limited thereto, and is, for example, a trapezoidal tooth, a triangular tooth, or the like.

如图1所示，所述柔性显示面板3显示面的非显示区域上设有边框4，如图7所示，当柔性显示器弯折后，其中一侧的第一子背板11以及相同侧的第二子背板21带动柔性显示面板3的一侧朝另一侧弯折，位于柔性显示面板3相对的两侧边框4相互贴合，从而避免了柔性显示器弯折后相互发生碰撞的问题，而弯折部12拉伸变形，从而满足弯折的要求。As shown in FIG. 1 , aframe 4 is disposed on a non-display area of the display surface of theflexible display panel 3, as shown in FIG. 7 , when the flexible display is bent, the firstsub-back plate 11 on one side and the same side are The second sub-backboard 21 drives the side of theflexible display panel 3 to be bent toward the other side, and the opposite side frames 4 of theflexible display panel 3 are attached to each other, thereby avoiding the problem that the flexible display collides with each other after bending. And thebent portion 12 is stretched and deformed to satisfy the bending requirement.

在上述的柔性显示面板采用OLED(有机发光二极管)面板。其具体结构采用现有技术中的柔性显示面板，在此不做具体限定。An OLED (Organic Light Emitting Diode) panel is employed in the above flexible display panel. The specific structure adopts a flexible display panel in the prior art, which is not specifically limited herein.

虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。While the invention has been shown and described with respect to the specific embodiments the embodiments of the embodiments of the invention Various changes in details.