WO2015149478A1 - 阵列基板、柔性显示器件及电子设备 - Google Patents

阵列基板、柔性显示器件及电子设备 Download PDF

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Publication number
WO2015149478A1
WO2015149478A1 PCT/CN2014/085862 CN2014085862W WO2015149478A1 WO 2015149478 A1 WO2015149478 A1 WO 2015149478A1 CN 2014085862 W CN2014085862 W CN 2014085862W WO 2015149478 A1 WO2015149478 A1 WO 2015149478A1
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WO
WIPO (PCT)
Prior art keywords
line
array substrate
substrate according
line segment
signal transmission
Prior art date
Application number
PCT/CN2014/085862
Other languages
English (en)
French (fr)
Inventor
邹祥祥
秦纬
先建波
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.)
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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 US14/433,792 priority Critical patent/US9570021B2/en
Publication of WO2015149478A1 publication Critical patent/WO2015149478A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/1218—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or structure of the substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0278—Details of driving circuits arranged to drive both scan and data electrodes

Definitions

  • the present application claims priority to Chinese Patent Application No. 20141013242, filed on Jan. 2, 2014, the entire content of The present invention relates to the field of liquid crystal display technology, and more particularly to an array substrate, a flexible display device, and an electronic device.
  • flexible displays have the advantages of thinness, lightness, high contrast, fast response, wide viewing angle, high brightness, full color, etc., so they are used in mobile phones, personal digital assistant (PDA) digital cameras, car displays, notebooks. Computers, wall-mounted TVs, and military fields have a wide range of prospects.
  • the array substrate 5 of the flexible display is designed as shown in FIG. 1 , and includes a non-bendable area and a bendable area.
  • the drive IC 1 is disposed in the non-bendable area; and the data metal line is disposed in the bendable area.
  • (Data line) 3, Gate line 2, Thin film transistor (TFT) 4 its design routing is similar to the array substrate of the current common display, the data metal line 3 and the gate metal line 2 are perpendicular to each other.
  • the thin film transistor 4 is located at the intersection of the data metal line 3 and the gate metal line 2 and functions as a switch.
  • An object of the disclosed technical solution is to provide an array substrate, a flexible display device, and an electronic device, which solve the problem that the flexible array substrate of the prior art is easily broken when bent and stretched.
  • the present disclosure provides an array substrate including a flexible substrate and an array layer formed on the flexible substrate, the flexible substrate being bendable, wherein the array layer comprises:
  • a signal transmission line comprising a plurality of data lines and a plurality of polar lines intersecting each other on the flexible substrate
  • a thin film transistor disposed in the sub-pixel region is connected to a corresponding data line and a gate line; at least a portion of the signal transmission line is formed as a bending curve in which a traveling direction is parallel to a side of the flexible substrate.
  • the bending curve is in a zigzag shape.
  • the side edges are bendable sides of the flexible substrate.
  • one of the data line and the » line is a bending curve, and the other is an oblique straight line.
  • the array substrate described above, wherein the signal transmission line formed as a bending curve includes a plurality of first line segment portions at a first angle with respect to the side edges and a plurality of opposite sides And a plurality of the first line segment portions and the plurality of the second line segment portions are respectively spaced apart from each other, and are sequentially connected end to end.
  • the array substrate described above wherein the first line segment portion of the signal transmission line is disposed on a plurality of first straight lines parallel to each other, and the second line segment portion is disposed in parallel with each other
  • the second line is on the line.
  • connection between the first line segment portion and the second line segment portion is a circular arc connection.
  • the array substrate described above wherein the signal transmission line formed as the oblique straight line intersects one of the second line segment portion and the first line segment portion to form a sub-pixel region.
  • the array substrate described above wherein the signal transmission line formed as the oblique straight line is parallel to the other line segment portion of the first line segment portion and the second line segment portion.
  • the angle of the inclined straight line with respect to the side is 45 degrees or 135 degrees.
  • the array substrate described above wherein the polar lines and the data lines are sequentially formed on the flexible substrate, wherein all the data lines are in the same layer, and all the gate lines are located on the same layer, between the two Interposed by insulating layers.
  • the array substrate described above further includes a driving module, configured to output a driving signal to the gate line and the data line.
  • the array substrate described above wherein the flexible substrate comprises a bendable display area and a non-bendable non-display area, and the driving module is disposed in the non-display area.
  • the driving module drives the data line and the cabinet line at the same time, or comprises a data driving module for separately driving the data line and a » pole driving module for separately driving the wire.
  • the present disclosure also provides a flexible display device comprising the array substrate of any of the above.
  • the present disclosure also provides an electronic device including the flexible display device as described above.
  • At least one of the above-mentioned technical solutions has the following advantageous effects: by setting a part of the signal transmission line to a bending curve in which the traveling direction is parallel to the side of the flexible substrate, so that in the same bending situation,
  • the signal transmission line in the array substrate of the disclosed embodiment has a relatively small degree of bending, so that the bending ability of the array substrate is improved, thereby solving the problem that the prior art flexible array substrate is easily broken when bent and stretched.
  • 1 is a schematic structural view of a prior art flexible array substrate;
  • FIGS. 3a-3b are diagrams showing angles of a signal transmission line and a side of a flexible substrate of an embodiment of the present disclosure
  • FIG. 4 is a partial structural view of an array layer on a column substrate according to a specific embodiment of the present disclosure
  • FIG. 5 is a schematic plan view showing a planar structure of the array substrate according to the embodiment of the present disclosure
  • FIG. 6 is a schematic view showing the angle between the gate line and the side of the flexible substrate according to the embodiment of the present disclosure
  • FIG. 7 is a schematic view showing the effect of the array substrate according to the embodiment of the present disclosure
  • Figure 8 is a partially enlarged schematic view showing a gate line of an embodiment of the present disclosure.
  • FIG. 9 is a cross-sectional structural view showing an array substrate according to an embodiment of the present disclosure.
  • the array substrate of the present disclosure includes a flexible substrate and an array layer formed on the flexible substrate,
  • the flexible substrate is bendable, wherein the array layer comprises:
  • a signal transmission line comprising a plurality of data lines and a plurality of wire lines, a thin film transistor disposed on the flexible substrate and disposed in the sub-pixel region, connected to a corresponding data line and a gate line; at least a part of the signal transmission line A bending curve is formed in which the traveling direction is parallel to the side of the flexible substrate.
  • the array substrate sets a part of the signal transmission line as a bending curve whose traveling direction is parallel to the side of the flexible substrate, and is applied to the flexible array substrate when compared with the prior art in a direction parallel to the side.
  • the bending radius of the signal transmission line formed by the bending curve is larger, that is, the bending degree of the signal transmission line in the array substrate of the embodiment of the present disclosure is relatively small in the case of the same bending. Therefore, the bending ability of the array substrate is improved, thereby solving the problem that the prior art flexible array substrate is easily broken when bent and stretched.
  • one of the data line and the » line is a curved curve with respect to the side, and the other is an oblique straight line.
  • the bending curve may be serrated.
  • the gate line is formed as a zigzag curve extending in a direction parallel to the side, the data line is an oblique straight line with respect to the side; or the data line is formed such that the traveling direction is parallel to the flexible substrate A zigzag curve of the side of the side, the grid line being an oblique straight line with respect to the side.
  • the flexible substrate has a conventionally bent state, as shown in FIG.
  • the two opposite sides may be curled or bent.
  • the data line or the grid line extending in the same direction as the bendable or curled side is extended. It is set to a jagged curve and the other is a slanted line.
  • the data line and the » line in the signal transmission line cross each other to form one sub-pixel
  • the sections of the zone are perpendicular to each other.
  • the angle formed between the lines, lines, and lines involved therein is first defined as follows.
  • the concept of mathematically line segments and straight lines is not strictly distinguished, for example, an angle (or parallel relationship) between a line segment and a line segment mentioned in the present disclosure or between other lines. Is the line between the line where the line segment is located or between the line between it and the other line. Angle (or parallel relationship).
  • the angle between the signal transmission line and one side of the flexible substrate is defined as [0 , i 80 ], and the display signal transmission line and the flexible substrate side are equivalent to a straight line as an example, as explained below.
  • A is assumed to be a side of the flexible substrate, and its horizontal rightward direction is a positive direction.
  • the inclination angle of the signal transmission line b with respect to a is Theta 1; and in FIG. 3b, the signal transmission line b is relative to a The angle of inclination is Theta 2.
  • b is inclined at 90 degrees with respect to a; when a and b are parallel or coincident, b is inclined at 0 degrees with respect to a.
  • the array substrate comprises a flexible substrate 100 and an array layer formed on the flexible substrate 100, the array layer including the display
  • the side and the non-display area, the side 110 can be bent at a portion corresponding to the display area of the flexible substrate 100.
  • the column layer includes:
  • the signal transmission line includes a plurality of gate lines 10 and a plurality of data lines 20, and the gate lines 10 and the data lines 20 cross each other on the flexible substrate 100 to form a plurality of sub-pixel regions;
  • the thin film transistor 30 disposed in each sub-pixel region is connected to the corresponding gate line 10 and the data line 20;
  • At least a portion of the signal transmission lines are formed as a bending curve in which the traveling direction is parallel to the side U 0 that can be bent.
  • the gate line 10 is disposed in a curved curve manner, and the data line 20 is disposed in a diagonal line with respect to the side edge 110.
  • the side edges 110 are the horizontal sides of the flexible substrate 100, that is, the sides on which the flexible substrate 100 can be bent in the structure shown in FIG.
  • the form of the bending is exemplified, and the specificity is not limited thereto.
  • the gate line 10 formed as a bending curve includes at least one first line segment portion U at a first angle with respect to the side edge 110 and at least one second line segment portion at a second angle with respect to the side edge 110. 12, the first line segment portion 11 and the second line segment portion 12 are connected at the top end, and the second line segment portion 12 is spaced apart between the adjacent two first line segment portions 11, and thus the plurality of first line segment portions 11 and more
  • the second line segment portions 12 are sequentially arranged in the direction of the side edges 110, and are connected end to end, and are formed in a zigzag curved structure as shown in FIGS. 4 and 5.
  • the horizontal direction to the right of the side 110 is also the positive direction, and the The inclination angle a of the one line segment portion 1 with respect to the side edge 10 is between 90 degrees and 180 degrees, and the inclination angle ⁇ of the second line segment portion 12 with respect to the side edge 10 is between 0 and 90 degrees.
  • the inclination angle ⁇ of the first line segment portion 1 1 of the gate line 10 with respect to the side edge 110 is 135 degrees
  • the inclination angle ⁇ of the second line segment portion 12 with respect to the side edge 10 is 45 degree.
  • the first line segment portion 1 and the second line segment portion 12 have the same width in the horizontal direction, and the adjacent two of the two cabinet lines 10, the second grid line (indicated by a broken line) and the first The gate lines (in solid lines) have the same shape and structure, but have an offset with respect to the first gate line (in solid lines), forming a phase difference of 180 degrees, so that the first line segment portion 1 of the cabinet line 10 Arranged on a plurality of first straight lines parallel to each other, the second line segment portion 12 of the » line 10 is arranged on a plurality of second straight lines parallel to each other. It should be noted that, in the structures shown in FIG. 4 and FIG.
  • a plurality of second » lines (indicated by a broken line) and a first gate line (in a solid line) for indicating the gate line 10 are inside or at the end point.
  • the gap does not indicate the breaking or breaking of the » line] 0, but only for the convenience of drawing.
  • the angle of inclination of the data line 20 relative to the side 110 is between 0 and 90 degrees, or between 90 and 180 degrees, and the data lines 20 are parallel to one another, optionally 45 degrees or 135 degrees. In a particular embodiment of the present disclosure, the angle of the data line 20 to the side 1 10 of the flexible substrate is 1 35 °.
  • the data line 20 is perpendicular to the second line segment portion 12 of the gate line 10, parallel to the first line segment portion 11 of the gate line 10, and the adjacent two
  • the data line 20 and the second line segment portion 12 of the adjacent two gate lines are formed as a pixel region, and a thin film transistor 30 is disposed in each pixel region, and is respectively connected to the corresponding gate line 10 and the data line 20.
  • the structural relationship between the thin film transistor 30 and the data line 20 and the gate line 10 is simplified in the embodiment of the present disclosure; in general, the gate of the thin film transistor 30 is connected to the gate line 10, and the source (or drain) of the thin film transistor The drain is connected to the data line 20, and the drain (or source) of the thin film transistor is connected to the pixel electrode (not shown); since the drain and the source of the thin film transistor are substantially the same in the fabrication process, they can be interchanged in name.
  • line 51 is a first signal transmission line that is disposed parallel to the bent side 110 in the prior art, and line 52 extends in the direction of side edge 110 as a curved junction in the disclosed embodiment.
  • the second signal transmission line 52 can be found in the cluster diagram. Since the length of the second signal transmission line 52 is greater than the length of the first signal transmission line 51, in the case of the substrate bending as shown in FIG. 7, the second signal transmission line 52 The end has a radius of curvature R2 larger than the radius of curvature R1 of the end of the first signal transmission line 51, that is, the average bending degree of the second signal transmission line 52 is lower than the average bending degree of the first signal transmission line 51.
  • the line is disposed in a straight line structure parallel to the bent side, in the embodiment of the present disclosure, the grid line 10 is set as a curved curve structure, in the same bending situation. , the degree of bending is relatively small.
  • the degree of bending is relatively small in the same bending case as compared with a straight line structure disposed parallel to the side to be bent.
  • one of the signal transmission lines is set to a curved structure with respect to the bent side of the flexible substrate, and the other signal transmission line is disposed as a slanted straight line structure, thereby reducing the degree of bending of the signal transmission line when the substrate is bent, thereby The bending properties of the substrate are improved.
  • the two bending curves are adjacent to each other at a vertex angle i3 at which the first line segment portion 11 and the second line segment portion 12 are connected, and the distance is very close, in order to avoid static electricity.
  • the breakdown, the apex angle 13 connecting the first line segment portion 11 and the second line segment portion 12 is set to an arc shape as shown in a partially enlarged view as shown in FIG.
  • the gate lines 10 and the data lines 20 are sequentially formed on the flexible substrate 100, and all the data lines 20 are on the same layer, all of the »10 lines Located on the same floor, separated by an insulating layer.
  • the array substrate further includes a driving module 120 for outputting driving signals to the gate lines and the data lines.
  • the flexible substrate may be divided into a bendable display area and a non-bendable non-display area, and the drive module is disposed in the non-display area.
  • the strength of the non-display area is large, the possibility of bending with respect to the display area is small, and the installation of the driving module in the non-display area can improve the protection of the driving module.
  • the driving module may be one, but may be two or more. Taking two driving modules as an example, correspondingly disposed on opposite sides of the flexible substrate, the two driving modules are connected to the data lines and the gate lines in the principle of nearby connection.
  • the above-mentioned driving module drives the data lines and the gate lines at the same time, but it should be understood that the driving module in the embodiment of the present disclosure may also include a data driving module for separately driving the data lines and separately used for A gate driving module that drives the gate line, and the gate driving module may be a separately existing chip.
  • At least two data lines after the data lines are diagonally disposed, at least two data lines have different lengths, and further, at least two data lines are respectively connected to each other. Different thin film transistors. Therefore, the number of data driving sub-signals output by the driving module to different data lines within one frame time is different.
  • the side of the gate line is arranged as a curved structure with respect to the side of the substrate, and the data line is disposed as an inclined straight line structure with respect to the side, and those skilled in the art can understand that The principle and manner of setting the data line to the curved structure and the grid line to the oblique line are the same as above, and will not be described in detail herein.
  • Embodiments of the present disclosure also provide a flexible display device including any of the above array substrates.
  • the structure and working principle of the column substrate are the same as those in the above embodiment, and are not described herein again.
  • the structure of other parts of the flexible display device can refer to the prior art, and will not be described in detail herein.
  • the flexible display device can be: a product or a component having any display function such as a liquid crystal panel, an electronic paper, a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, or the like.
  • An embodiment of the present disclosure also provides an electronic device including the above flexible display device.

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Abstract

一种阵列基板、柔性显示器件及电子设备。该阵列基板包括柔性基板（100）和形成在所述柔性基板（100）上的阵列层，柔性基板（100）能够弯曲，其中所述阵列层包括：信号传输线，包括多条数据线（20）和多条栅线（10），相互交叉在柔性基板（100）上形成多个子像素区；设置于子像素区中的薄膜晶体管（30），与对应的数据线（20）和栅线（10）连接；至少一部分所述信号传输线形成为行进方向平行于所述柔性基板（100）的侧边（110）的弯折曲线。

Description

本申请主张在 2014 年 4 月 2 日在中国提交的中国专利申请 No. 201410132420.5的优先权， 其全部内容通过引用包含于此。 本发明涉及液晶显示技术领域， 尤其是指一种阵列基板、 柔性显示器件 及电子设备。 柔性显示器作为新一代的显示器件， 因其具有薄而轻、 高对比度、 快速 响应、 宽视角、 高亮度、 全彩色等优点， 因此在手机、 个人数字助理 (PDA) 数码相机、 车载显示、 笔记本电脑、 壁挂电视以及军事领域等具有十分广泛 的应 前景。
目前， 柔性显示器的阵列基板 5设计如图 1所示， 包括不可弯折区和可 弯折区， 在不可弯折区域内设置有驱动 IC 1； 在可弯折区域内， 设置有数据 金属线 （Data line) 3、 栅极金属线 （Gate line) 2、 薄膜晶体管 （TFT) 4, 其 设计走线方式与目前普通显示器的阵列基板类似， 数据金属线 3和栅极金属 线 2相互垂直， 薄膜晶体管 4位于数据金属线 3和栅极金属线 2的交叉处， 起着开关作用。
然而在现有的阵列基板设计中， 在柔性显示屏弯曲时， 金属线会弯曲和 拉伸， 如图 2 所示。 当显示器件以图 2 所示的方式弯折时， 水平设置的信号 传输线会以图 2 所示的方式弯折， 容易出现断裂的现象， 因此有必要设计一 种新的阵列基板结构，以适应阵列基板弯曲和拉伸时的要求，而不容易断裂。 本公开技术方案的目的是提供一种阵列基板、柔性显示器件及电子设备， 解决现有技术柔性阵列基板在弯曲和拉伸时， 容易断裂的问题。
本公开提供一种阵列基板， 包括柔性基板和形成在所述柔性基板上的阵 列层， 所述柔性基板能够弯曲， 其中所述阵列层包括：
信号传输线， 包括多条数据线和多条極线， 相互交叉在所述柔性基板上 设置于所述子像素区中的薄膜晶体管， 与对应的数据线和栅线连接； 至少一部分所述信号传输线形成为行进方向平行于所述柔性基板的侧边 的弯折曲线。
可选地， 所述弯折曲线为锯齿状。
可选地， 所述侧边为柔性基板的可弯曲侧边。
可选地， 上述所述的阵列基板， 其中， 所述数据线和所述 »线的其中之 一为弯折曲线， 另一为倾斜直线。
可选地， 上述所述的阵列基板， 其中， 形成为弯折曲线的所述信号传输 线包括多个相对于所述侧边成第一角度的第一线段部分和多个相对于所述侧 边成第二角度的第二线段部分， 多个所述第一线段部分与多个所述第二线段 部分之间分别间隔设置， 依次首尾连接。
可选地， 上述所述的阵列基板， 其中， 所述信号传输线的所述第一线段 部分布置在彼此平行的多条第一直线上， 所述第二线段部分布置在彼此平行 的多条第二直线上。
可选地， 上述所述的阵列基板， 其中， 所述第一线段部分和所述第二线 段部分之间的连接为圆弧连接。
可选地， 上述所述的阵列基板， 其中， 形成为所述倾斜直线的所述信号 传输线与所述第二线段部分和所述第一线段部分的其中之一交叉构成子像素 区。
可选地， 上述所述的阵列基板， 其中， 形成为所述倾斜直线的所述信号 传输线与所述第一线段部分和所述第二线段部分的另一线段部分相平行。
可选地， 上述所述的阵列基板， 其中， 所述倾斜直线相对于所述侧边的 角度为 45度或 135度。
可选地， 上述所述的阵列基板， 其中， 所述数据线和所述 »线相互交叉 形成子像素区的部分为相互垂直。
可选地， 上述所述的阵列基板， 其中， 所述極线和数据线依次形成于所 述柔性基板上， ϋ所有的数据线位于同一层， 所有的栅线位于同一层， 二者 之间以绝缘层间隔。 可选地， 上述所述的阵列基板还包括驱动模块， 用于向栅线和数据线输 出驱动 1^号。
可选地， 上述所述的阵列基板， 其中， 柔性基板包括可弯折的显示区和 不可弯折非显示区， 驱动模块设置于所述非显示区。
可选地， 上述所述的阵列基板， 其中， 所述驱动模块同时驱动数据线和 櫥线， 或者包括单独 ffi于驱动数据线的数据驱动模块和单独用于驱动櫥线的 »极驱动模块。
本公开还提供一种柔性显示器件， 包括如上任意一项所述的阵列基板。 本公开还提供一种电子设备， 包括如上所述的柔性显示器件。
本公开具体实施例上述技术方案中的至少一个具有以下有益效果： 通过将一部分信号传输线设置为行进方向平行于所述柔性基板的侧边的 弯折曲线， 使得在相同的弯折情形下， 本公开实施例阵列基板中的信号传输 线的弯折程度相对较小， 所以提高了阵列基板的弯折能力， 因此解决现有技 术柔性阵列基板在弯曲和拉伸时， 容易断裂的问题。 图 1表示现有技术柔性阵列基板的结构示意图；
图 2表示现有技术的柔性阵列基板弯折时信号传输线的弯曲情况示意图; 图 3a- 3b表示本公开实施例的信号传输线与柔性基板侧边所成角度的示 意图；
图 4表示本公开具体实施例所述 列基板上阵列层的部分结构示意图； 图 5表示本公开具体实施例所述阵列基板的平面结构示意图；
图 6表示本公开实施例的栅线与柔性基板侧边所成角度的示意图； 图 7表示本公开实施例的阵列基板的效果比较示意图；
图 8表示本公开实施例的栅线的局部放大示意图；
图 9表示本公开具体实施例所述阵列基板的截面结构示意图。
为使本公开要解决的技术问题、 技术方案和优点更加清楚， 下面将结合 ffi图及具体实施例进行详细描述。
本公开所述阵列基板，包括柔性基板和形成在所述柔性基板上的阵列层， 所述柔性基板能够弯曲， 其中所述阵列层包括：
信号传输线， 包括多条数据线和多条櫥线， 相互交叉在所述柔性基板上 设置于所述子像素区中的薄膜晶体管， 与对应的数据线和栅线连接； 至少一部分所述信号传输线形成为行进方向平行于所述柔性基板的侧边 的弯折曲线。
所述阵列基板将一部分信号传输线设置为行进方向平行于所述柔性基板 的侧边的弯折曲线， 与现有技术沿平行于侧边的方向设置为直线相比， 当其 应用于柔性阵列基板并被弯折时， 该由弯折曲线构成的信号传输线的弯曲半 径更大， 也就是说， 在相同的弯折情形下， 本公开实施例阵列基板中的信号 传输线的弯折程度相对较小， 所以提高了阵列基板的弯折能力， 因此解决现 有技术柔性阵列基板在弯曲和拉伸时， 容易断裂的问题。
本公开实施例中， 所述数据线和所述 »线的其中之一相对于所述侧边为 弯折曲线， 另一为倾斜直线。 可选地， 该弯折曲线可以为锯齿状。 例如， 所 述栅线形成为沿平行侧边的方向延伸的锯齿状弯折曲线， 所述数据线相对于 所述侧边为一倾斜直线； 或者所述数据线形成为行进方向平行于所述柔性基 板的侧边的锯齿状弯折曲线， 所述栅线相对于所述侧边为一倾斜直线。
通常，柔性基板具有一惯用弯折状态，如图 2所示。在该惯用弯折状态， 两相对的侧边可卷曲或弯折， 在本公开技术方案中， 可选地， 延伸方向与可 弯折或卷曲的侧边的延伸方向相同的数据线或栅线被设置为锯齿状弯折曲线， 另一为倾斜直线。
可选地， 无论所述信号传输线中的哪一个形成为弯折曲线， 以及形成为 何种结构的弯折曲线， 所述信号传输线中的所述数据线和所述 »线相互交叉 形成一个子像素区的部分为相互垂直。
在本公开的具体实施例中， 先对其中涉及到的线、 线与线之间所成角度 定义如下。
在本公开中，为描述方便，不严格区分数学上线段和直线的概念，例如， 在本公开中所提到的线段与线段之间或者与其他直线之间所成的角 （或者平 行关系），是指线段所在的直线之间或者其所在的直线与其他直线之间所成的 角 （或者平行关系）。 在本公开的具体实施例中， 定义信号传输线与柔性基板 的一个侧边所成角度为 [0， i 80]， 以将显示信号传输线和柔性基板侧边等效为 直线为例， 解释如下。
假定 a为柔性基板的一个侧边， 其水平向右的方向为正方向， 如图 3a所 示， 信号传输线 b相对于 a的倾斜角度为 Theta 1； 而图 3b中， 信号传输线 b 相对于 a倾斜角度为 Theta 2。 当 a和 b垂直时， 则 b相对于 a的倾斜角度为 90度； 当 a和 b平行或重合时， b相对于 a的倾斜角度为 0度。
本公开实施例的一种阵列基板的结构如图 4和图 5所示， 结合图 4和图 5， 该阵列基板包括柔性基板 100和形成在柔性基板 100上的阵列层， 该阵列 层包括显示区和非显示区， 侧边 110在对应于柔性基板 100的显示区的部分 能够发生弯曲。 在该显示区域内， 该 列层包括：
信号传输线， 包括多条栅线 10和多条数据线 20， 栅线 10和数据线 20 在所述柔性基板 100上相互交叉而形成多个子像素区；
设置于每一子像素区内的薄膜晶体管 30， 与对应的栅线 10和数据线 20 连接；
其中至少一部分所述信号传输线形成为行进方向平行于可被弯折的侧边 U 0的弯折曲线。
参阅图 4和图 5， 本公开具体实施例中， 所述栅线 10以弯折曲线的方式 设置， 所述数据线 20以相对于侧边 110为倾斜直线的方式设置。
所述侧边 110为柔性基板 100的水平边， 也即， 使柔性基板 100能够以 如图 2所示结构进行弯折的侧边。 在此仅以该种弯折形式举例说明， 具体并 不限于此。
具体地，形成为弯折曲线的所述栅线 10包括至少一个相对于侧边 110成 第一角度的第一线段部分 U和至少一个相对于侧边 110成第二角度的第二线 段部分 12， 第一线段部分 11和第二线段部分 12在顶端连接， 相邻的两个第 一线段部分 11之间间隔设置第二线段部分 12， 因此多个第一线段部分 11和 多个第二线段部分 12沿侧边 110的方向依次间隔排列， 首尾连接， 构成为如 图 4和图 5所示的锯齿状的曲线结构。
结合图 6， 同样以侧边 110水平向右的方向为正方向， 所述極线 10的第 一线段部分】1相对于侧边 1 0的倾斜角度 a位于 90度与 180度之间， 第二 线段部分 12相对于侧边〗 10的倾斜角度 β位于 0至 90度之间。 本公开实施 例中， 所述栅线 10的第一线段部分 1 1相对于侧边 110的倾斜角度 α为 135 度， 所述第二线段部分 12相对于侧边〗 10的倾斜角度 β为 45度。
此外， 结合图 4与图 5， 第一线段部分】1和第二线段部分 12在水平方 向的宽度相同， 相邻的两条櫥线 10中， 第二栅线（呈虚线）和第一栅线 （呈 实线） 具有相同形状与结构， 但相对于第一栅线 （呈实线） 具有一偏移量， 形成 180度的相位差， 使得櫥线 10的第一线段部分 1 1布置在彼此平行的多 条第一直线上， »线 10的第二线段部分 12布置在彼此平行的多条第二直线 上。 值得说明的是， 在图 4和图 5所示的结构中， 用于表示所述栅线 10的多 条第二 »线 （呈虚线） 和第一栅线 （呈实线） 内部或端点处的缺口并不表示 所述 »线】0的断开或折断， 而仅是为了绘图方便。
所述数据线 20相对于侧边 110的倾斜角度位于 0至 90度之间， 或者位 于 90度至 1 80度之间， 各数据线 20相互平行， 可选地， 为 45度或 135度。 在本公开的具体实施例中，数据线 20与柔性基板的侧边 1 10的夹角为 1 35 ° 。
由此， 基于上述 »线 10和数据线 20的设置结构， 数据线 20与栅线 10 的第二线段部分 12相垂直， 与栅线 10的第一线段部分 11相平行， 相邻的两 数据线 20与相邻的两栅线的第二线段部分 12交叉构成为一像素区， 每一像 素区内分别设置一薄膜晶体管 30，分别与对应的栅线 10和数据线 20相连接。
可以理解的是， 本公开实施例中简化了薄膜晶体管 30与数据线 20、 栅 线 10的结构关系； 一般情况； 薄膜晶体管 30的栅极与栅线 10连接， 薄膜晶 体管的源极（或漏极） 与数据线 20连接， 薄膜晶体管的漏极 （或源极） 与像 素电极（未示出）连接； 由于薄膜晶体管的漏极和源极在制作工艺基本相同， 可以在名称上互换。
本公开实施例提及的线与线之间的角度关系，长度，数量的比较关系等， 都是以在显示区域为例进行说明。 下面对本公开实施例的斜向布置的信号传 输线的弯折说明如下。
如图 7所示， 假定图 7中， 线 51为现有技术平行于被弯折的侧边 110布 置的第一信号传输线，线 52为本公开实施例沿侧边 110的方向延伸呈弯曲结 构的第二信号传输线， 丛图中可以发现， 由于第二信号传输线 52的长度大于 第一信号传输线 51的长度， 则在如图 7所示的基板弯折情况下， 第二信号传 输线 52的末端具有比第一信号传输线 51的末端的曲率半径 R1更大的曲率半 径 R2， ffi就是说， 第二信号传输线 52的平均弯曲程度比第一信号传输线 51 的平均弯曲程度要低。
因此，相对于现有技术中 »线设置为与被弯折的侧边相平行的直线结构， 在本公开的实施例中，栅线 10设置为弯曲曲线的结构，在相同的弯折情形下， 弯折程度相对较小。
因此， 对于相对于侧边 110成 45度的数据线， 相较于设置为与被弯折的 侧边相平行的直线结构， 在相同的弯折情形下， 弯折程度也相对较小。
本公开实施例通过相对于柔性基板的被弯折侧边， 使其中一信号传输线 设置为曲线结构， 另一信号传输线设置为倾斜直线结构， 降低了基板弯折情 况下信号传输线的弯曲程度， 因此改善了基板的弯曲性能。
参阅图 4， 在相邻的两栅线 10中， 两弯折曲线在第一线段部分 11和第 二线段部分 12相连接的顶角 i3处位置相邻， 距离很近， 为避免发生静电击 穿， 将第一线段部分 11和第二线段部分 12连接的顶角 13处设置为弧形， 如 图 8所示的局部放大图所示。
此外， 结合图 9所述阵列基板的截面图， 在制成阵列基板时， 栅线 10和 数据线 20依次形成于柔性基板 100上， 且所有的数据线 20位于同一层， 所 有的 »线 10位于同一层， 之间以绝缘层间隔。
在本公开的具体实施例中， 如图 5所示， 所述阵列基板还包括驱动模块 120， 用于向栅线和数据线输出驱动信号。
为了保护驱动模块 120， 可以将柔性基板划分为可弯折的显示区和不可 弯折非显示区， 并将驱动模块设置于所述非显示区。
由于非显示区的强度较大， 因此相对于显示区弯折的可能性较小， 将驱 动模块设置于所述非显示区能够提高对驱动模块的保护。
在本公开的具体实施例中， 所述驱动模块可以是一个， 但也可以是两个 或两个以上。 以包括两个驱动模块为例， 对应设置于所述柔性基板的相对的 两个侧边， 两个驱动模块以就近连接的原则与所述数据线和栅线连接。 在上述的实施例中， 上述的驱动模块同时驱动数据线和栅线， 但应当理 解的是， 本公开实施例中的驱动模块也可以包括单独用于驱动数据线的数据 驱动模块和单独用于驱动栅线的栅极驱动模块， 该栅极驱动模块可以是独立 存在的芯片。
此外， 结合图 5 , 在本公开的具体实施例中， 上述的数据线斜向设置之 后， 会使得至少有两条数据线具有不同的长度， 进一步的， 使得至少有两条 数据线分别连接数量不同的薄膜晶体管。 因此， 所述驱动模块在一帧时间内 向不同数据线输出的数据驱动子信号的数量不同。
本领域技术人员应该能够理解采用本公开实施例阵列基板时， 所述驱动 模块与信号传输线之间的连接关系、 信号传输线在基板上的制成方式， 在此 不详细描述。
以上以本公开实施例所述阵列基板中， 将栅线相对于基板的侧边设置为 曲线结构、 数据线相对于侧边设置为倾斜直线结构进行了详细描述， 本领域 技术人员可以理解， 当将数据线设置为曲线结构、 栅线设置为倾斜直线时的 原理和方式与上述相同， 在此不详细描述。
本公开实施例还提供了一种柔性显示器件， 包括上述任意的阵列基板。 其中， 列基板的结构以及工作原理同上述实施例， 在此不再赘述。 另外， 柔性显示器件其他部分的结构可以参考现有技术， 对此本文不再详细描述。 该柔性显示器件可以为： 液晶面板、 电子纸、 液晶电视、 液晶显示器、 数码 相框、 手机、 平板电脑等具有任何显示功能的产品或部件。
本公开实施例还提供了一种电子设备， 包括上述的柔性显示器件。
以上所述是本公开的优选实施方式， 应当指出， 对于本技术领域的普通 技术人员来说， 在不脱离本公开所述原理的前提下， 还可以作出若千改进和 润饰， 这些改进和润饰也应视为本公开的保护范围。

Claims

1 . 一种阵列基板， 包括柔性基板和形成在所述柔性基板上的阵列层， 所 述柔性基板能够弯曲， 其中， 所述阵列层包括：
信号传输线， 包括多条数据线和多条»线， 相互交叉在所述柔性基板上 形成多个子像素区；
设置于所述子像素区中的薄膜晶体管， 与对应的数据线和栅线连接； 至少一部分所述信号传输线形成为行进方向平行于所述柔性基板的侧边 的弯折曲线。
2. 如权利要求 1所述的阵列基板， 其中， 所述弯折曲线为锯齿状。
3. 如权利要求 1或 2所述的阵列基板， 其中， 所述侧边为柔性基板的可
4. 如权利要求 1至 3任一项所述的阵列基板， 其中， 所述数据线和所述 栅线的其中之一为弯折曲线， 另一为倾斜直线。
5. 如权利要求 4所述的阵列基板， 其中， 形成为弯折曲线的所述信号传 输线包括多个相对于所述侧边成第一角度的第一线段部分和多个相对于所述 侧边成第二角度的第二线段部分， 多个所述第一线段部分与多个所述第二线 段部分之间分别间隔设置， 依次首尾连接。
6. 如权利要求 5所述的阵列基板， 其中， 形成为弯折曲线的所述信号传 输线的所述第一线段部分布置在彼此平行的多条第一直线上， 所述第二线段 部分布置在彼此平行的多条第二直线上。
7. 如权利要求 5所述的阵列基板， 其中， 所述第一线段部分和所述第二 线段部分之间的连接为圆弧连接。
8. 如权利要求 6所述的阵列基板， 其中， 形成为所述倾斜直线的所述信 号传输线与所述第一线段部分和所述第二线段部分的其中之一交叉构成子像 素区。
9. 如权利要求 8所述的阵列基板， 其中， 形成为所述倾斜直线的所述信 号传输线与所述第一线段部分和所述第二线段部分的另一线段部分相平行。
10. 如权利要求 4至 9任一项所述的阵列基板， 其中， 所述倾斜直线相 对于所述侧边的角度为 45度或 135度。
11 . 如权利要求 4至 9任一项所述的阵列基板， 其中， 在所述数据线和 所述櫥线相互交叉的区域， 所述数据线和所述栅线的位置关系为相互垂直。
12. 如权利要求 1至 11任一项所述的阵列基板， 其中， 所述 »线和所述 数据线依次形成于所述柔性基板上， 旦所有的数据线位于同一层， 所有的栅 线位于同一层， 二层之间以绝缘层间隔。
1 3. 如权利要求〗至 12任一项所述的阵列基板， 还包括驱动模块， 用于 向所述栅线和所述数据线输出驱动信号。
14. 如权利要求】 3所述的 列基板， 其中， 柔性基板包括可弯折的显示 区和不可弯折的非显示区， 所述驱动模块设置于所述非显示区。
1 5. 如权利要求】 3所述的 列基板， 其中， 所述驱动模块同时驱动所述 驱动数据线和所述栅线， 或者包括单独用于驱动数据线的数据驱动模块和单 独用于驱动栅线的栅极驱动模块。
16. 一种柔性显示器件， 包括如权利要求 1-15中任意一项所述的阵列基 板。
17. 一种电子设备， 包括权利要求 16所述的柔性显示器件。
PCT/CN2014/085862 2014-04-02 2014-09-03 阵列基板、柔性显示器件及电子设备 WO2015149478A1 (zh)

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