CN109062436A - A kind of flexible display panels and display device - Google Patents
A kind of flexible display panels and display device Download PDFInfo
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- CN109062436A CN109062436A CN201810866530.2A CN201810866530A CN109062436A CN 109062436 A CN109062436 A CN 109062436A CN 201810866530 A CN201810866530 A CN 201810866530A CN 109062436 A CN109062436 A CN 109062436A
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- flexible display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
This application discloses a kind of flexible display panels and display devices to understand the bending state of display product in real time, avoid display product overflexing to detect the bending parameter of display product.A kind of flexible display panels provided by the embodiments of the present application, the flexible display panels include bending detecting electrode layer, and the bending detecting electrode layer includes at least one electrode pair；By detecting the capacitance present of the electrode pair, bending angle and overbending direction of the flexible panel in the electrode to region are determined.
Description
Technical field
This application involves field of display technology more particularly to a kind of flexible display panels and display device.
Background technique
With the development of flexible display technologies, the manufacture of Folding display product has become possibility.But the prior art
Folding display product can not determine its bending angle in use.
It to sum up, can not since the folding display screen of the prior art can not understand its bending angle in real time in use
Understand display product bending state, there are the risks of overflexing for display product.
Summary of the invention
The embodiment of the present application provides a kind of flexible display panels and display device, to detect the bending ginseng of display product
Number understands the bending state of display product in real time, avoids display product overflexing.
A kind of flexible display panels provided by the embodiments of the present application, the flexible display panels include bending detecting electrode
Layer, the bending detecting electrode layer includes at least one electrode pair；The capacitance present that electrode pair is stated by detecting, determines described soft
Property panel is in the electrode to the bending angle and overbending direction of region.
Flexible display panels provided by the embodiments of the present application, since display panel includes bending detecting electrode layer, bending inspection
Surveying electrode layer includes at least one electrode pair, so as to determine the curved of display panel by the capacitor for detecting the electrode pair
Dog-ear degree and overbending direction, it can the bending state for understanding display panel in real time avoids display panel overflexing.
Optionally, the flexible display panels further include capacitance detection unit, and the capacitance detection unit is used for:
Detect the capacitance present of the electrode pair；
Bending angle of the flexible panel in the electrode to region is determined according to the capacitance present of the electrode pair
Degree and overbending direction.
In this way, by the capacitance present of detecting electrode pair, when the capacitance present of electrode pair change can determine it is aobvious
Show that panel is bent, and can determine bending angle and the direction of display panel.
Optionally, the capacitance detection unit is also used to:
Determine whether the flexible display panels bending angle is more than preset value, and works as the bending of the flexible display panels
Angle issues alarm signal when being more than preset threshold.
Optionally, the first electrode and second electrode of the electrode pair are located on the same floor.
In this way, being convenient for the capacitance present of detecting electrode pair, and the technology difficulty of display panel preparation is not increased.
Optionally, the thickness of the first electrode is equal to the thickness of the second electrode, the first electrode and described the
The two electrode faces and first electrode is parallel with the side of the second electrode face.
Optionally, the first electrode and second electrode of the electrode pair are block type electrode.
Optionally, the electrode is to the edge that the flexible display panels are arranged in.
Optionally, the flexible display panels are touch-control display panel, further include touch control electrode layer, the of the electrode pair
Touch control electrode same layer in one electrode and second electrode and the touch control electrode layer is arranged.
So as to form first electrode and second electrode while forming touch control electrode, do not increasing display panel system
The detection to display panel bending parameter, and the thickness without increasing display panel can be realized in the case where standby process flow
Degree.
Optionally, the flexible display panels further include: thin film transistor base plate, be located at the thin film transistor base plate it
On electroluminescent device layers and the encapsulated layer on the electroluminescent device layers, the touch control electrode layer is in institute
It states on encapsulated layer or the touch control electrode layer is attached on encapsulated layer by glue material.
The embodiment of the present application provides a kind of display device, including above-mentioned Flexible Displays face provided by the embodiments of the present application
Plate.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, the drawings in the following description are only some examples of the present application, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of schematic diagram of flexible display panels provided by the embodiments of the present application；
Fig. 2 is the AA ' cross section structure schematic diagram provided by the embodiments of the present application along Fig. 1；
Fig. 3 is a kind of schematic diagram of flexible display panels outward bending provided by the embodiments of the present application；
First electrode, second electrode and lining when Fig. 4 is flexible display panels outward bending provided by the embodiments of the present application
Relation schematic diagram between bottom；
Fig. 5 is a kind of schematic diagram that flexible display panels bend inwards provided by the embodiments of the present application；
Fig. 6 is first electrode, second electrode and lining when flexible display panels provided by the embodiments of the present application bend inwards
Relation schematic diagram between bottom；
Fig. 7 is the schematic diagram of another flexible display panels provided by the embodiments of the present application；
Fig. 8 is the schematic diagram of another flexible display panels provided by the embodiments of the present application；
Fig. 9 is the schematic diagram of another flexible display panels provided by the embodiments of the present application.
Specific embodiment
The embodiment of the present application provides a kind of flexible display panels, as shown in Figure 1, the flexible display panels include bending
Detecting electrode layer 1, the bending detecting electrode layer include at least one electrode to 15；By the current electricity for detecting the electrode pair
Hold, determines bending angle and overbending direction of the flexible panel in the electrode to region.
Flexible display panels provided by the embodiments of the present application, since display panel includes bending detecting electrode layer, bending inspection
Surveying electrode layer includes at least one electrode pair, so as to determine display panel by the capacitance present for detecting the electrode pair
Bending angle and overbending direction, it can in real time understand display panel bending state, avoid display panel overflexing.
It should be noted that overbending direction includes bending inwards or outward bending.The capacitor of the electrode pair for example can be with
It is detected by capacitance detection unit, capacitance detection unit can be arranged independently of flexible display panels, may also be arranged on display
In panel.
Next by taking capacitance detection unit is arranged in flexible display panels as an example, to flexibility provided by the embodiments of the present application
Display panel is illustrated.
As shown in Figure 1, each electrode includes a first electrode 2 and a second electrode 3 to 15；The Flexible Displays face
Plate further includes capacitance detection unit 4, and the capacitance detection unit 4 is used for: detecting electrode to 15 capacitance present, according to the electricity
Bending angle and overbending direction of the flexible panel in the electrode to 15 regions extremely are determined to 15 capacitance present；Figure
Each first electrode 2 is connect by the extraction of first electrode lead 5 with capacitance detection unit 4 in 1, each second electrode
3 are connect by second electrode lead 6 with capacitance detection unit 4.
It should be noted that along the section of AA ' as shown in Fig. 2, first electrode 2 and second electrode 3 are arranged in substrate in Fig. 1
On 7, first electrode, the length of second electrode are l, first electrode, second electrode thickness be h, first electrode and
Spacing between two electrodes is D, then in the case where flexible display panels are there is no bending, first electrode and second electrode
Between capacitorWherein, k is electrostatic force constant, and ε is dielectric constant.As shown in figure 3, when flexible display panels to
When substrate is bent backwards to first electrode and second electrode side, i.e. outward bending, between first electrode, second electrode and substrate
Relationship schematic diagram as shown in figure 4, crooked process radius be r, then its bending angle beFirst electrode and second electrode
Deflection angle isThe face height of first electrode and second electrodeBetween first electrode and second electrode bottom end
DistanceThe distance between first electrode and second electrode top
At this point, the capacitor between first electrode and second electrodeAs shown in figure 5, when display
When panel is bent to substrate towards first electrode and second electrode side, that is, when bending inwards, first electrode, second electrode and
The schematic diagram of relationship between substrate is as shown in fig. 6, crooked process radius is r, then its bending angle isFirst electrode and
Second electrode deflection angle isThe height of the face of first electrode and second electrodeFirst electrode and second
The distance between electrode bottom endThe distance between first electrode and second electrode topAt this point, the capacitor between first electrode and second electrodeThat is display panel bending causes the distance between first electrode and second electrode to be sent out
Changing, therefore the capacitor between first electrode and second electrode also accordingly changes, therefore, by detection first electrode and
Capacitor between second electrode can determine that display panel is sent out when the capacitor between first electrode and second electrode changes
Raw bending, and bending angle and the direction of display panel can be determined according to above formula.
Optionally, the capacitance detection unit is also used to:
Determine whether the flexible display panels bending angle is more than preset value, and works as the bending of the flexible display panels
Angle issues alarm signal when being more than preset threshold.
For example, when user uses the display product including display panel provided by the embodiments of the present application and bends display production
When product, if bending angle is more than preset threshold, capacitance detection unit issues alarm signal, reminds the user that the curved of display product
Folding state, avoid with continue bending display product it is damaged.Preset threshold can be configured according to actual needs.
Optionally, the first electrode and second electrode of the electrode pair are located on the same floor.In this way, convenient for detection first electrode
Capacitor between second electrode, and do not increase the technology difficulty of display panel preparation.
Optionally, the thickness of the first electrode of the electrode pair is equal to the thickness of second electrode, the first electrode and institute
It states second electrode face and the first electrode is parallel with the side of the second electrode face.
Optionally, flexible display panels provided by the embodiments of the present application, the first electrode and the second electrode are block
Shape electrode.
It should be noted that flexible display panels as shown in Figure 1, 2 provided by the embodiments of the present application, 2 He of first electrode
Second electrode 3 is rectangular block shape electrode, and two block type electrode thickness are equal and face, an opposite side of first electrode and second are electric
One opposite side of pole is parallel, and the capacitor between such first electrode and second electrode, will not be to display panel bending angle convenient for calculating
Detection increase difficulty.
Optionally, the edge of the flexible display panels is arranged in the first electrode and second electrode of the electrode pair.
Optionally, the flexible display panels be touch-control display panel, further include touch control electrode layer, the first electrode and
Touch control electrode same layer in the second electrode and the touch control electrode layer is arranged.So as to while forming touch control electrode
First electrode and second electrode are formed, can be realized in the case where not increasing display panel preparation process flow to display surface
Plate bends the detection of parameter, and the thickness without increasing display panel.
Fig. 1 is illustrated so that display panel includes an electrode pair as an example, certainly, provided by the embodiments of the present application soft
Property display panel, bending detecting electrode layer may include multiple electrodes pair, as shown in fig. 7, display panel includes multiple electrodes pair
15, first electrode 2, second electrode 3 and 16 same layer of touch control electrode are arranged, i.e., first electrode and second electrode are arranged in display panel
Touch control electrode layer, and the edge of touch control electrode layer is arranged in first electrode and second electrode.It should be noted that such as Fig. 7 institute
Show, since two adjacent edges of touch control electrode layer are provided with multiple first electrodes and second electrode, when display panel is bent
When folding line is parallel to X, Y, bending folding line is located at any position of display panel and can detecte out bending angle and direction.In addition,
By display panel along straight line X bending for, the first electrode and second electrode of the two sides straight line X be arranged in display panel edge or
The centre that display panel is arranged in can detecte bending angle and direction, and first electrode and second electrode setting are being shown
Face plate edge can rationally utilize the white space of display panel, it can the case where not increasing display panel design difficulty
Detection of the lower realization to display panel bending angle and direction.
Optionally, the flexible display panels further include: thin film transistor base plate, electroluminescent device layers, encapsulated layer, institute
State touch control electrode layer be located on the encapsulated layer or the touch control electrode layer by glue material attach in the encapsulated layer it
On.Flexible display panels provided by the embodiments of the present application can be In-cell touch display panel, and to be also possible to external hanging type touch-control aobvious
Show panel, for In-cell touch display panel, on cell mode as an example, as shown in figure 8, flexible display panels include:
TFT substrate 8, OLED device layer 9, encapsulated layer 10, touch control electrode layer 12, glue material 11, polarizing layer 13, glue material 11, cover board 14,
In, touch control electrode layer 12 includes touch control electrode and first electrode and second electrode that same layer is arranged in touch control electrode.Such as
Shown in Fig. 9, for the touch-control display panel of external hanging type, flexible display panels include: TFT substrate 8, OLED device layer 9, encapsulated layer
10, glue material 11, touch control electrode layer 12, glue material 11, polarizing layer 13, glue material 11, cover board 14.In Fig. 8, Fig. 9, touch control electrode layer 12 is wrapped
It includes touch control electrode and the first electrode and second electrode of same layer is set with touch control electrode.
The embodiment of the present application provides a kind of display device, including above-mentioned Flexible Displays face provided by the embodiments of the present application
Plate.
Display device provided by the embodiments of the present application, such as can be the devices such as mobile phone, tablet computer.
In conclusion flexible display panels provided by the embodiments of the present application and display device, since display panel includes curved
Detecting electrode layer is rolled over, is detected so as to the bending parameter to display panel, it can understands the curved of display panel in real time
Folding state avoids display panel overflexing.Display panel provided by the embodiments of the present application, by detecting first electrode and second
Capacitor between electrode can determine that display panel generation is curved when the capacitor between first electrode and second electrode changes
Folding, and can determine bending angle and the direction of display panel.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of flexible display panels, which is characterized in that the flexible display panels include bending detecting electrode layer, the bending
Detecting electrode layer includes at least one electrode pair；By detecting the capacitance present of the electrode pair, determine that the flexible panel exists
Bending angle and overbending direction of the electrode to region.
2. flexible display panels according to claim 1, which is characterized in that the flexible display panels further include capacitor inspection
Unit is surveyed, the capacitance detection unit is used for:
Detect the capacitance present of the electrode pair；
According to the capacitance present of the electrode pair determine the flexible panel the electrode to the bending angle of region and
Overbending direction.
3. flexible display panels according to claim 2, which is characterized in that
The capacitance detection unit is also used to:
Determine whether the flexible display panels bending angle is more than preset value, and works as the bending angle of the flexible display panels
Alarm signal is issued when more than preset threshold.
4. flexible display panels according to claim 1 or 2, which is characterized in that the first electrode of the electrode pair and institute
Second electrode is stated to be located on the same floor.
5. flexible display panels according to claim 1 or 2, which is characterized in that the thickness etc. of the first electrode of electrode pair
In the thickness of second electrode, the first electrode and the second electrode face and the first electrode and the second electrode
The side of face is parallel.
6. flexible display panels according to claim 5, which is characterized in that the first electrode and the second electrode are
Block type electrode.
7. flexible display panels according to claim 1 or 2, which is characterized in that the electrode is to setting in the flexibility
The edge of display panel.
8. flexible display panels according to claim 1 or 2, which is characterized in that the flexible display panels are aobvious for touch-control
Show panel, further includes touch control electrode layer, the first electrode and second electrode of the electrode pair and the touching in the touch control electrode layer
Control the setting of electrode same layer.
9. flexible display panels according to claim 8, which is characterized in that the flexible display panels further include: film
Transistor base, the electroluminescent device layers on the thin film transistor base plate and be located at the electroluminescent cell
Encapsulated layer on part layer, the touch control electrode layer is on the encapsulated layer or the touch control electrode layer is pasted by glue material
It pays on encapsulated layer.
10. a kind of display device, which is characterized in that including flexible display panels according to any one of claims 1 to 9.
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| CN201810866530.2A CN109062436B (en) | 2018-08-01 | 2018-08-01 | Flexible display panel and display device |
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| CN201810866530.2A CN109062436B (en) | 2018-08-01 | 2018-08-01 | Flexible display panel and display device |
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| CN109584725A (en) * | 2019-01-02 | 2019-04-05 | 上海天马有机发光显示技术有限公司 | A kind of display panel and display device |
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| CN109933248A (en) * | 2019-02-28 | 2019-06-25 | 武汉华星光电半导体显示技术有限公司 | Flexible touch panel, display device and its bending method for detecting area |
| CN110097826A (en) * | 2019-03-28 | 2019-08-06 | 云谷（固安）科技有限公司 | Display screen, display screen bending detection device and method, display device |
| CN110660329A (en) * | 2019-09-29 | 2020-01-07 | 武汉天马微电子有限公司 | Flexible display module and flexible display device |
| CN111176383A (en) * | 2019-12-31 | 2020-05-19 | 上海天马有机发光显示技术有限公司 | Flexible display panel and display device |
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| CN109062436B (en) | 2021-12-28 |
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