WO2020172967A1 - 一种可折叠显示装置 - Google Patents

一种可折叠显示装置 Download PDF

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Publication number
WO2020172967A1
WO2020172967A1 PCT/CN2019/082916 CN2019082916W WO2020172967A1 WO 2020172967 A1 WO2020172967 A1 WO 2020172967A1 CN 2019082916 W CN2019082916 W CN 2019082916W WO 2020172967 A1 WO2020172967 A1 WO 2020172967A1
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WO
WIPO (PCT)
Prior art keywords
electrode
electrodes
screen body
display device
touch
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/082916
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English (en)
French (fr)
Inventor
祐卫国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Application filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to US16/475,133 priority Critical patent/US20210034200A1/en
Publication of WO2020172967A1 publication Critical patent/WO2020172967A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
    • G01D5/2417—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying separation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1677—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for detecting open or closed state or particular intermediate positions assumed by movable parts of the enclosure, e.g. detection of display lid position with respect to main body in a laptop, detection of opening of the cover of battery compartment
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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
    • 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0226—Hinges
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper

Definitions

  • the present invention relates to the field of display technology, in particular to a foldable display device.
  • OLED display panels have been adopted by more and more electronic products, among which flexible foldable display panels have attracted more attention due to their foldability.
  • the existing foldable display device when in use, when the display device is turned to the state of FIG. 1, the screen display is turned off, and when it is turned to the state of FIG. 2 again, the screen display is turned on.
  • the existing detection structure In order to detect the opening and closing state of the screen, it is generally necessary to add a detection structure to the foldable display device for detection.
  • the existing detection structure generally increases the thickness or weight of the screen, which is not conducive to the thinning of the foldable display device.
  • the detection structure for detecting the folding state of the display device generally increases the thickness or weight of the screen, which is not conducive to the technical problem of thinning the display device.
  • a foldable display device includes:
  • a rotating shaft which divides the display screen body into a first screen body and a second screen body
  • the display screen body is used to fold along the rotation axis, the display screen body is provided with capacitive detection electrodes for detecting its folded state, and the capacitive detection electrodes include those arranged on the first screen.
  • first electrode and the second electrode are both arranged close to the rotating shaft.
  • both the first electrode and the second electrode include at least two mutually parallel and independent detection sub-electrodes.
  • control chip electrically connected to the first electrode and the second electrode is provided on the display screen body.
  • touch electrodes are provided on the display screen body, and the touch electrodes are electrically connected to the control chip to form capacitive detection electrodes for detecting the folding state of the display screen body.
  • the touch electrodes include horizontal touch electrodes parallel to the rotation axis and vertical touch electrodes perpendicular to the horizontal touch electrodes; the horizontal touch electrodes include multiple rows of independent touch elements.
  • An electrode, the touch control sub-electrode is electrically connected to the control chip to form the first electrode and the second electrode.
  • At least two rows of the touch sub-electrodes are electrically connected with the control chip to form the first electrode, and at least two rows of the touch sub-electrodes are electrically connected with the control chip to form the The second electrode.
  • the capacitive detection electrode is a self-capacitance detection electrode or a mutual capacitance detection electrode.
  • a foldable display device includes:
  • a rotating shaft which divides the display screen body into a first screen body and a second screen body
  • the display screen body is used to fold along the rotation axis, the display screen body is provided with capacitive detection electrodes for detecting its folded state, and the capacitive detection electrodes include those arranged on the first screen.
  • first electrode and the second electrode are symmetrically distributed about the rotation axis.
  • first electrode and the second electrode are both arranged close to the rotating shaft.
  • both the first electrode and the second electrode include at least two mutually parallel and independent detection sub-electrodes.
  • a display area and a non-display area are arranged on the display screen body, and the first electrode and the second electrode are both arranged in the non-display area.
  • control chip electrically connected to the first electrode and the second electrode is provided on the display screen body.
  • touch electrodes are provided on the display screen body, and the touch electrodes are electrically connected to the control chip to form capacitive detection electrodes for detecting the folding state of the display screen body.
  • the touch electrodes include horizontal touch electrodes parallel to the rotation axis and vertical touch electrodes perpendicular to the horizontal touch electrodes; the horizontal touch electrodes include multiple rows of independent touch elements.
  • An electrode, the touch control sub-electrode is electrically connected to the control chip to form the first electrode and the second electrode.
  • At least two rows of the touch sub-electrodes are electrically connected with the control chip to form the first electrode, and at least two rows of the touch sub-electrodes are electrically connected with the control chip to form the The second electrode.
  • the capacitive detection electrode is a self-capacitance detection electrode or a mutual capacitance detection electrode.
  • the first electrode and the second electrode are smaller, lighter and thinner. It can be arranged inside the display screen body, which is conducive to the thinning of the display device.
  • FIG. 1 is a schematic diagram of the foldable display device in the background of the present invention when it is fully closed;
  • FIG. 2 is a schematic diagram of the foldable display device in the background of the present invention when it is fully opened;
  • FIG. 3 is a schematic structural diagram of a foldable display device in the first embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the first electrode and the second electrode in the first embodiment of the present invention when the first electrode and the second electrode are arranged obliquely;
  • FIG. 6 is a schematic diagram when the first electrode and the second electrode are perpendicular to the rotation axis in the first embodiment of the present invention
  • FIG. 7 is a schematic diagram of the distribution of the first electrode and the second electrode in the second embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a foldable display device in Embodiment 3 of the present invention.
  • FIG. 9 is a schematic structural diagram of a foldable display device in Embodiment 4 of the present invention.
  • the present invention addresses the technical problem that the detection structure for detecting the folding state of the display device in the existing foldable display device generally increases the thickness or weight of the screen, which is not conducive to the thinning of the display device.
  • the present invention can solve the above-mentioned problems.
  • a foldable display device as shown in FIGS. 3 and 4, the foldable display device includes a display screen body and a rotating shaft 20; the display screen body can be folded along the rotating shaft 20, and the rotating shaft 20
  • the display screen is divided into a first screen 11 and a second screen 12.
  • first screen body 11 and the second screen body 12 are both rotatably connected to the rotating shaft 20 around the shaft 20, and both the first screen body 11 and the second screen body 12 Can rotate around the shaft 20.
  • the display screen body is provided with a capacitive detection electrode for detecting its folded state;
  • the capacitive detection electrode includes a first electrode 31 arranged on the first screen body 11, and, arranged on the A second electrode 32 on the second screen 12 and corresponding to the first electrode 31.
  • the included angle between the first screen body 11 and the second screen body 12 is a, and those skilled in the art will know that the capacitance value of the capacitor formed by the first electrode 31 and the second electrode 32 b is inversely proportional to a, that is, the larger a, the greater the distance between the first electrode 31 and the second electrode 32, and the smaller b is.
  • the degree of folding of the display screen can be judged by monitoring the capacitance value b, which is convenient and accurate
  • the first electrode 31 and the second electrode 32 are smaller in size, lighter and thinner, and can also be arranged inside the display screen body, which is beneficial to the lightness and thinness of the display device.
  • the display screen body is further provided with a control chip 33 electrically connected to the first electrode 31 and the second electrode 32, and the control chip 33 provides a detection signal for the capacitive detection electrode,
  • the capacitive detection electrode is a self-capacitance detection electrode or a mutual capacitance detection electrode.
  • the control chip 33 transmits the detection signal to the first electrode 31, and after the first electrode 31 itself receives the detection signal, the detection signal is transmitted to the control chip 33 via the wiring 34 Or the control chip 33 transmits the detection signal to the second electrode 32, and then the second electrode 32 itself receives the detection signal, and then the detection signal is transmitted to the control chip 33 via the wiring 34 to determine the degree of folding of the display screen.
  • the control chip 33 transmits the detection signal to the first electrode 31, and then the detection signal is received by the second electrode 32, and the detection signal is transmitted to the control chip 33 via the wiring 34; Or the control chip 33 transmits the detection signal to the second electrode 32, and after the first electrode 31 receives the detection signal, the detection signal is transmitted to the control chip 33 via the wiring 34, so as to determine the degree of folding of the display screen.
  • first electrode 31 and the second electrode 32 are symmetrically distributed about the rotation axis 20.
  • the portion corresponding to the first electrode 31 and the second electrode 32 is larger, the capacitance value of the capacitor formed by the first electrode 31 and the second electrode 32 is larger.
  • the change in the degree of folding also has a greater impact on the capacitance value of the capacitor formed by the first electrode 31 and the second electrode 32, so that the detection result of the degree of folding of the display screen body is more accurate.
  • first electrode 31 and the second electrode 32 are both arranged close to the rotating shaft 20.
  • the display screen body is provided with a display area 13 and a non-display area 14, and the first electrode 31 and the second electrode 32 are both provided in the non-display area 14 to prevent the first electrode and the second electrode
  • the occupation of the display area by the two electrodes leads to a reduction in the screen ratio of the display body.
  • FIG. 3 only illustrates the case where both the first electrode 31 and the second electrode 32 are rectangular.
  • the first electrode 31 and the second electrode 32 may also have other shapes, such as a wave shape or an arc shape, which will not be listed here.
  • the first electrode 31 and the second electrode 32 are arranged in the non-display area 14.
  • the first electrode 31 and the second electrode 32 are arranged in a waveform Or arc shape, which can increase the area of the first electrode 31 and the second electrode 32, thereby increasing the capacitance value of the capacitor formed by the first electrode 31 and the second electrode 32, thereby making the detection result of the folding degree of the display screen more accurate .
  • FIG. 3 only illustrates the case where the first electrode 31 and the second electrode 32 are both parallel to the rotating shaft 20.
  • the first electrode 31 and the second electrode 32 may also be arranged obliquely or perpendicular to the rotation axis 20.
  • a foldable display device is different from the first embodiment only in that the first electrode 31 and the second electrode 32 both include at least two mutually parallel and independent detection sub-electrodes 35.
  • the detection sub-electrodes 35 are all electrically connected to the control chip 33 through wires 34.
  • a capacitance is formed between the corresponding detection sub-electrodes 35, and the detection sensitivity is improved by multiple capacitances, so as to better accurately detect the folding state of the display screen body.
  • FIG. 7 only illustrates the case where the first electrode 31 includes three detection sub-electrodes 35.
  • the first electrode 31 may also include two or more detection sub-electrodes. 35.
  • a foldable display device as shown in FIG. 8, is different from the first embodiment only in the way of forming the capacitive detection electrode.
  • touch electrodes are provided on the display screen body, and the touch electrodes are electrically connected to the control chip 33 to form capacitive detection electrodes for detecting the folding state of the display screen body.
  • the touch electrodes include horizontal touch electrodes parallel to the shaft 20 and vertical touch electrodes 42 perpendicular to the horizontal touch electrodes; the horizontal touch electrodes include multiple rows of independent touch electrodes.
  • the sub-electrodes 41, the vertical touch electrodes 42 include multiple columns of mutually independent sub-electrodes, that is, each row of the touch sub-electrodes 41 are insulated from each other; the touch sub-electrodes 41 and the control chip 33 are electrically connected Connect to form the first electrode 31 and the second electrode 32.
  • the touch electrode of the display device itself is used as the capacitive detection electrode, no additional capacitive detection electrode is required, and the production cost is reduced.
  • a foldable display device as shown in FIG. 9, is different from the third embodiment only in that both the first electrode 31 and the second electrode 32 include multiple rows of touch sub-electrodes 41.
  • At least two rows of the touch sub-electrodes 41 are electrically connected to the control chip 33 to form the first electrode 31, and at least two rows of the touch sub-electrodes 41 are electrically connected to the control chip 33 To form the second electrode 32.
  • FIG. 9 only illustrates the case where the first electrode 31 includes three touch control sub-electrodes 41.
  • the first electrode 31 may also include two or more touch control sub-electrodes 41. Sub-electrode 41.
  • the beneficial effect of the present invention is that the folding degree of the display screen body is judged by detecting the capacitance value of the capacitance formed by the first electrode 31 and the second electrode 32, which is convenient and accurate.
  • the first electrode 31 and the second electrode The two electrodes 32 are smaller in size and lighter and thinner, and can also be arranged inside the display screen body, which is beneficial to the lightness and thinness of the display device.

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  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
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  • General Physics & Mathematics (AREA)
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Abstract

一种可折叠显示装置，包括显示屏体和转轴（20）；转轴（20）将显示屏体划分为第一屏体（11）和第二屏体（12）；显示屏体用于沿转轴（20）进行折叠，显示屏体上设置有对其折叠状态进行检测的电容式检测电极，电容式检测电极包括设置在第一屏体（11）的第一电极（31），以及设置在第二屏体（12）并与第一电极（31）对应的第二电极（32）。

Description

一种可折叠显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种可折叠显示装置。
 背景技术
随着科技发展的进步，人们追求可携式消费型电子产品的样貌也朝向轻薄化，可折叠发展。而现今OLED显示面板已被越来越多的电子产品所采用，其中柔性可折叠显示面板更是由于其可折叠性而备受关注。
现有的可折叠显示装置中，使用时，显示装置转至图1状态时，屏幕显示关闭，当又转至图2状态时，屏幕显示开启。为了检测屏幕的开合状态，一般需要在可折叠显示装置上增加检测结构进行检测，然而现有的检测结构一般会增加屏幕较大的厚度或重量，不利于可折叠显示装置的轻薄化。
 技术问题
对显示装置的折叠状态进行检测的检测结构一般会增加屏幕较大的厚度或重量，不利于显示装置的轻薄化的技术问题。
 技术解决方案
一种可折叠显示装置，包括：
显示屏体；
转轴，所述转轴将所述显示屏体划分为第一屏体和第二屏体；
其中，所述显示屏体用于沿所述转轴进行折叠，所述显示屏体上设置有对其折叠状态进行检测的电容式检测电极，所述电容式检测电极包括设置在所述第一屏体的第一电极，以及，设置在所述第二屏体并与所述第一电极对应的第二电极；所述第一电极和所述第二电极关于所述转轴对称分布；所述显示屏体上设置有显示区和非显示区，所述第一电极和所述第二电极均设置在所述非显示区。
进一步的，所述第一电极和所述第二电极均设置在靠近所述转轴处。
进一步的，所述第一电极和所述第二电极均包括至少两个相互平行且独立的检测子电极。
进一步的，所述显示屏体上还设置有与所述第一电极和所述第二电极电性连接的控制芯片。
进一步的，所述显示屏体上设置有触控电极，所述触控电极与所述控制芯片电性连接，以形成对所述显示屏体的折叠状态进行检测的电容式检测电极。
进一步的，所述触控电极包括平行于所述转轴的水平触控电极和与所述水平触控电极垂直的竖向触控电极；所述水平触控电极包括多行相互独立的触控子电极，所述触控子电极与所述控制芯片电性连接，以形成所述第一电极和所述第二电极。
进一步的，至少两行所述触控子电极与所述控制芯片电性连接以形成所述第一电极，至少两行所述触控子电极与所述控制芯片电性连接，以形成所述第二电极。
进一步的，所述电容式检测电极为自电容式检测电极或互电容式检测电极。
一种可折叠显示装置，包括：
显示屏体；
转轴，所述转轴将所述显示屏体划分为第一屏体和第二屏体；
其中，所述显示屏体用于沿所述转轴进行折叠，所述显示屏体上设置有对其折叠状态进行检测的电容式检测电极，所述电容式检测电极包括设置在所述第一屏体的第一电极，以及，设置在所述第二屏体并与所述第一电极对应的第二电极。
进一步的，所述第一电极和所述第二电极关于所述转轴对称分布。
进一步的，所述第一电极和所述第二电极均设置在靠近所述转轴处。
进一步的，所述第一电极和所述第二电极均包括至少两个相互平行且独立的检测子电极。
进一步的，所述显示屏体上设置有显示区和非显示区，所述第一电极和所述第二电极均设置在所述非显示区。
进一步的，所述显示屏体上还设置有与所述第一电极和所述第二电极电性连接的控制芯片。
进一步的，所述显示屏体上设置有触控电极，所述触控电极与所述控制芯片电性连接，以形成对所述显示屏体的折叠状态进行检测的电容式检测电极。
进一步的，所述触控电极包括平行于所述转轴的水平触控电极和与所述水平触控电极垂直的竖向触控电极；所述水平触控电极包括多行相互独立的触控子电极，所述触控子电极与所述控制芯片电性连接，以形成所述第一电极和所述第二电极。
进一步的，至少两行所述触控子电极与所述控制芯片电性连接以形成所述第一电极，至少两行所述触控子电极与所述控制芯片电性连接，以形成所述第二电极。
进一步的，所述电容式检测电极为自电容式检测电极或互电容式检测电极。
 有益效果
通过检测第一电极与第二电极形成的电容的电容值来判断显示屏体的折叠程度，方便准确的同时，相对于机械检测结构，第一电极和第二电极的体积小，更加轻薄，还可以设置在显示屏体的内部，有利于显示装置的轻薄化。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明背景技术中可折叠显示装置完全闭合时的示意图；
图2为本发明背景技术中可折叠显示装置完全打开时的示意图；
图3为本发明实施例一中可折叠显示装置的结构示意图；
图4为本发明实施例一中第一屏体与第二屏体形成夹角时的示意图；
图5为本发明实施例一中第一电极和第二电极倾斜设置时的示意图；
图6为本发明实施例一中第一电极和第二电极垂直于转轴时的示意图；
图7为本发明实施例二中第一电极和第二电极的分布示意图；
图8为本发明实施例三中可折叠显示装置的结构示意图；
图9为本发明实施例四中可折叠显示装置的结构示意图。
附图标记：
11、第一屏体；12、第二屏体；13、显示区；14、非显示区；20、转轴；31、第一电极；32、第二电极；33、控制芯片；34、走线；35、检测子电极；41、触控子电极；42、竖向触控电极。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有的可折叠显示装置中，对显示装置的折叠状态进行检测的检测结构一般会增加屏幕较大的厚度或重量，不利于显示装置的轻薄化的技术问题。本发明可以解决上述问题。
实施例一：
一种可折叠显示装置，如图3和图4所示，所述可折叠显示装置包括显示屏体和转轴20；所述显示屏体能够沿所述转轴20进行折叠，所述转轴20将所述显示屏体划分为第一屏体11和第二屏体12。
需要说明的是，所述第一屏体11和所述第二屏体12均绕转轴20轴向与所述转轴20转动连接，所述第一屏体11和所述第二屏体12均可绕转轴20转动。
需要打开或闭合显示屏体时，以转动第一屏体11为例，将所述第一屏体11绕所述转轴20向远离所述第二屏体12的方向转动到与所述第二屏体12平行时所述显示屏体完全打开；将所述第一屏体11绕所述转轴20向靠近所述第二屏体12的方向转动到与所述第二屏体12平行时所述显示屏体完全闭合。
其中，所述显示屏体上设置有对其折叠状态进行检测的电容式检测电极；所述电容式检测电极包括设置在所述第一屏体11的第一电极31，以及，设置在所述第二屏体12上并与所述第一电极31对应的第二电极32。
需要说明的是，所述第一屏体11与所述第二屏体12之间的夹角为a，对于本领域技术人员可知，第一电极31与第二电极32形成的电容的电容值b与a成反比，即a越大，第一电极31与第二电极32的距离越大，b越小，即可通过监测电容值b的大小来判断显示屏体的折叠程度，方便准确的同时，相对于机械检测结构，第一电极31和第二电极32的体积小，更加轻薄，还可以设置在显示屏体的内部，有利于显示装置的轻薄化。
具体的，所述显示屏体上还设置有与所述第一电极31和所述第二电极32电性连接的控制芯片33，所述控制芯片33为所述电容式检测电极提供检测信号，所述电容式检测电极为自电容式检测电极或互电容式检测电极。
所述电容式检测电极为自电容式检测电极时，控制芯片33将检测信号传输给第一电极31，再由第一电极31本身接收检测信号后，检测信号经走线34传输至控制芯片33；或控制芯片33将检测信号传输给第二电极32，再由第二电极32本身接收检测信号后，检测信号经走线34传输至控制芯片33，从而判断显示屏体的折叠程度。
所述电容式检测电极为互电容式检测电极时，控制芯片33将检测信号传输给第一电极31，再由第二电极32接收检测信号后，检测信号经走线34传输给控制芯片33；或控制芯片33将检测信号传输给第二电极32，再由第一电极31接收检测信号后，检测信号经走线34传输给控制芯片33，从而判断显示屏体的折叠程度。
具体的，所述第一电极31和所述第二电极32关于所述转轴20对称分布。
对于本领域技术人员，可以理解的是，第一电极31与第二电极32对应的部分较大，则第一电极31与第二电极32形成的电容的电容值较大，在折叠显示屏体时，折叠程度的变化对第一电极31与第二电极32形成的电容的电容值影响也较大，从而使得对显示屏体的折叠程度的检测结果更加准确。
进一步的，所述第一电极31和所述第二电极32均设置在靠近所述转轴20处。
对于本领域技术人员，可以理解的是，第一电极31与第二电极32之间的距离越小，则第一电极31与第二电极32形成的电容的电容值较大，从而使得对显示屏体的折叠程度的检测结果更加准确。
进一步的，所述显示屏体上设置有显示区13和非显示区14，所述第一电极31和所述第二电极32均设置在所述非显示区14，以防止第一电极和第二电极占用显示区导致降低显示屏体的屏幕占比。
需要说明的是，关于第一电极31和第二电极32的形状，图3中仅示意了第一电极31和第二电极32均呈矩形的情况。在具体实施中，所述第一电极31和所述第二电极32还可以为其他形状，如波形状或弧形状，在此不一一列举。所述第一电极31和所述第二电极32设置在非显示区14，在不增加非显示区14的宽度的前提下，将所述第一电极31和所述第二电极32设置成波形或弧形，可以增加第一电极31和第二电极32的面积，从而增加第一电极31和第二电极32形成的电容的电容值，从而使得对显示屏体的折叠程度的检测结果更加准确。
需要说明的是，关于第一电极31和第二电极32的位置设置，图3中仅示意了第一电极31和第二电极32均平行于转轴20的情况。在具体实施中，如图5和图6所示，所述第一电极31和所述第二电极32还可以倾斜设置或垂直于转轴20。
实施例二：
一种可折叠显示装置，如图7所示，其与实施例一的不同之处仅在于所述第一电极31和所述第二电极32均包括至少两个相互平行且独立的检测子电极35，所述检测子电极35均通过走线34与控制芯片33电性连接。
相互对应的检测子电极35之间形成电容，通过多个电容提高检测灵敏度，从而更好的对显示屏体的折叠状态进行准确的检测。
需要说明的是，图7中仅示意了所述第一电极31包括3个检测子电极35的情况，在具体实施中，所述第一电极31还可以包括2个或更多的检测子电极35。
实施例三：
一种可折叠显示装置，如图8所示，其与实施例一的不同之处仅在于所述电容式检测电极的形成方式不同。
具体的，所述显示屏体上设置有触控电极，所述触控电极与所述控制芯片33电性连接，以形成对所述显示屏体的折叠状态进行检测的电容式检测电极。
其中，所述触控电极包括平行于所述转轴20的水平触控电极和与所述水平触控电极垂直的竖向触控电极42；所述水平触控电极包括多行相互独立的触控子电极41，所述竖向触控电极42包括多列相互独立的子电极，即每行触控子电极41之间均相互绝缘；所述触控子电极41与所述控制芯片33电性连接以形成所述第一电极31和所述第二电极32。
利用显示装置自身所带的触控电极作为电容式检测电极，无需额外设置电容式检测电极，降低生产成本。
实施例四：
一种可折叠显示装置，如图9所示，其与实施例三的不同之处仅在于所述第一电极31和所述第二电极32均包括多行触控子电极41。
具体的，至少两行所述触控子电极41与所述控制芯片33电性连接以形成所述第一电极31，至少两行所述触控子电极41与所述控制芯片33电性连接以形成所述第二电极32。
需要说明的是，图9中仅示意了所述第一电极31包括3个触控子电极41的情况，在具体实施中，所述第一电极31还可以包括2个或更多的触控子电极41。
本发明的有益效果为：通过检测第一电极31与第二电极32形成的电容的电容值来判断显示屏体的折叠程度，方便准确的同时，相对于机械检测结构，第一电极31和第二电极32的体积小，更加轻薄，还可以设置在显示屏体的内部，有利于显示装置的轻薄化。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (18)

  1. 一种可折叠显示装置，其中，所述可折叠显示装置包括：
    显示屏体；
    转轴，所述转轴将所述显示屏体划分为第一屏体和第二屏体；
    其中，所述显示屏体用于沿所述转轴进行折叠，所述显示屏体上设置有对其折叠状态进行检测的电容式检测电极，所述电容式检测电极包括设置在所述第一屏体的第一电极，以及，设置在所述第二屏体并与所述第一电极对应的第二电极；所述第一电极和所述第二电极关于所述转轴对称分布；所述显示屏体上设置有显示区和非显示区，所述第一电极和所述第二电极均设置在所述非显示区。
  2. 根据权利要求1所述的可折叠显示装置，其中，所述第一电极和所述第二电极均设置在靠近所述转轴处。
  3. 根据权利要求1所述的可折叠显示装置，其中，所述第一电极和所述第二电极均包括至少两个相互平行且独立的检测子电极。
  4. 根据权利要求1所述的可折叠显示装置，其中，所述显示屏体上还设置有与所述第一电极和所述第二电极电性连接的控制芯片。
  5. 根据权利要求4所述的可折叠显示装置，其中，所述显示屏体上设置有触控电极，所述触控电极与所述控制芯片电性连接，以形成对所述显示屏体的折叠状态进行检测的电容式检测电极。
  6. 根据权利要求5所述的可折叠显示装置，其中，所述触控电极包括平行于所述转轴的水平触控电极和与所述水平触控电极垂直的竖向触控电极；所述水平触控电极包括多行相互独立的触控子电极，所述触控子电极与所述控制芯片电性连接，以形成所述第一电极和所述第二电极。
  7. 根据权利要求6所述的可折叠显示装置，其中，至少两行所述触控子电极与所述控制芯片电性连接以形成所述第一电极，至少两行所述触控子电极与所述控制芯片电性连接，以形成所述第二电极。
  8. 根据权利要求1所述的可折叠显示装置，其中，所述电容式检测电极为自电容式检测电极或互电容式检测电极。
  9. 一种可折叠显示装置，其中，所述可折叠显示装置包括：
    显示屏体；
    转轴，所述转轴将所述显示屏体划分为第一屏体和第二屏体；
    其中，所述显示屏体用于沿所述转轴进行折叠，所述显示屏体上设置有对其折叠状态进行检测的电容式检测电极，所述电容式检测电极包括设置在所述第一屏体的第一电极，以及，设置在所述第二屏体并与所述第一电极对应的第二电极。
  10. 根据权利要求9所述的可折叠显示装置，其中，所述第一电极和所述第二电极关于所述转轴对称分布。
  11. 根据权利要求10所述的可折叠显示装置，其中，所述第一电极和所述第二电极均设置在靠近所述转轴处。
  12. 根据权利要求10所述的可折叠显示装置，其中，所述第一电极和所述第二电极均包括至少两个相互平行且独立的检测子电极。
  13. 根据权利要求9所述的可折叠显示装置，其中，所述显示屏体上设置有显示区和非显示区，所述第一电极和所述第二电极均设置在所述非显示区。
  14. 根据权利要求10所述的可折叠显示装置，其中，所述显示屏体上还设置有与所述第一电极和所述第二电极电性连接的控制芯片。
  15. 根据权利要求14所述的可折叠显示装置，其中，所述显示屏体上设置有触控电极，所述触控电极与所述控制芯片电性连接，以形成对所述显示屏体的折叠状态进行检测的电容式检测电极。
  16. 根据权利要求15所述的可折叠显示装置，其中，所述触控电极包括平行于所述转轴的水平触控电极和与所述水平触控电极垂直的竖向触控电极；所述水平触控电极包括多行相互独立的触控子电极，所述触控子电极与所述控制芯片电性连接，以形成所述第一电极和所述第二电极。
  17. 根据权利要求16所述的可折叠显示装置，其中，至少两行所述触控子电极与所述控制芯片电性连接以形成所述第一电极，至少两行所述触控子电极与所述控制芯片电性连接，以形成所述第二电极。
  18. 根据权利要求9所述的可折叠显示装置，其中，所述电容式检测电极为自电容式检测电极或互电容式检测电极。
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