WO2017096916A1 - 显示设备及其驱动方法 - Google Patents

显示设备及其驱动方法 Download PDF

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Publication number
WO2017096916A1
WO2017096916A1 PCT/CN2016/091740 CN2016091740W WO2017096916A1 WO 2017096916 A1 WO2017096916 A1 WO 2017096916A1 CN 2016091740 W CN2016091740 W CN 2016091740W WO 2017096916 A1 WO2017096916 A1 WO 2017096916A1
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WO
WIPO (PCT)
Prior art keywords
electrode
substrate
pressure detecting
panel
middle frame
Prior art date
Application number
PCT/CN2016/091740
Other languages
English (en)
French (fr)
Inventor
杨明
陈小川
赵文卿
王倩
卢鹏程
丁小梁
王海生
许睿
王磊
高健
牛小辰
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
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Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 北京京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/513,774 priority Critical patent/US10261644B2/en
Publication of WO2017096916A1 publication Critical patent/WO2017096916A1/zh

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    • 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
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    • G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • G01L1/142—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors
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    • G01L5/226—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to manipulators, e.g. the force due to gripping
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    • G01L9/12—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor
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    • 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
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Definitions

  • Embodiments of the present disclosure relate to a display device and a method of driving the same.
  • the application of the touch panel enables the user to operate the host computer by touching the display screen with a finger, thereby getting rid of the keyboard and the mouse, and the human-computer interaction is more straightforward.
  • the touch panel can be divided into four types: resistive, capacitive, optical, and acoustic.
  • the capacitive touch panel realizes the touch function by utilizing the capacitance change generated by the electrostatic combination between the sensing electrode and the human body, and has better fireproofness, antifouling property, scratch resistance, and faster reaction speed.
  • Embodiments of the present disclosure provide a display device and a driving method thereof, which can detect a pressure and make a product thinner and thinner without adding an electrode layer.
  • An embodiment of the present disclosure provides a display device including: a middle frame made of a conductive material; a panel assembly on one side of the middle frame; and a pressure detecting unit, wherein the panel assembly includes a first substrate a substrate and a pressure detecting electrode on a side of the first substrate away from the middle frame, the pressure detecting electrode and the middle frame forming a capacitance; the pressure detecting unit and the pressure detecting electrode and the A middle frame connection for detecting a capacitance value between the pressure detecting electrode and the middle frame.
  • the middle frame is grounded.
  • the panel assembly further includes a second base substrate disposed on a side of the pressure detecting electrode away from the first substrate .
  • the display device provided by the embodiment of the present disclosure further includes a circuit board disposed on a side of the middle frame away from the panel assembly.
  • the display device provided by the embodiment of the present disclosure further includes a spacer disposed between the middle frame and the panel assembly.
  • the spacer is made of an elastic material.
  • the panel assembly includes a first panel and a second panel that are disposed in a stack, the first panel being located between the second panel and the middle frame;
  • the first panel includes the pressure detecting electrode.
  • the second panel is a liquid crystal display panel
  • the first panel is a liquid crystal grating or a liquid crystal lens.
  • the first panel includes: a first substrate and a second substrate disposed opposite to each other, and a liquid crystal between the first substrate and the second substrate;
  • the first substrate includes: a first substrate and a first electrode on a side of the first substrate adjacent to the second substrate, the second substrate comprising: a second substrate;
  • the second substrate is adjacent to the second electrode on one side of the first substrate, and the first electrode and the second electrode may cause the first panel to exhibit grating stripe or present a liquid crystal lens upon power-on;
  • the first substrate is adjacent to the middle frame, the first substrate is the substrate substrate closest to the middle frame of the panel assembly, and the pressure detecting electrode is the first electrode.
  • the pressure detecting electrode includes a plurality of sub-electrodes arranged in an array; the pressure detecting unit is further configured to use a capacitance between the sub-electrode and the middle frame, and The coordinates of the sub-electrodes determine the touch position.
  • the pressure detecting electrode includes a plurality of sub-electrodes arranged in an array; the pressure detecting unit is further configured to use a capacitance between the sub-electrode and the middle frame, and The coordinates of the sub-electrodes determine the touch position.
  • the first panel includes: a first substrate and a second substrate disposed opposite to each other, and a liquid crystal between the first substrate and the second substrate;
  • the first substrate includes: a first substrate and a first electrode on a side of the first substrate adjacent to the second substrate, the second substrate comprising: a second substrate;
  • the second substrate is close to the second electrode on the side of the first substrate, and the first electrode and the second electrode may cause the first panel to exhibit a grating stripe when the power is turned on.
  • a light-shielding pattern is disposed between each adjacent one of the sub-electrodes in the same column, and the light-shielding pattern has the same width as the sub-electrode in the row direction.
  • the pressure detecting unit is further configured to: according to the capacitance value between the pressure detecting electrode and the middle frame and the correspondence between the capacitance value and the pressure level a relationship determining a pressure level corresponding to a capacitance value between the pressure detecting electrode and the middle frame.
  • Embodiments of the present disclosure also provide a driving method of a display device, including: providing a first signal to a pressure detecting electrode.
  • the first signal is a pulse signal.
  • An embodiment of the present disclosure further provides a driving method of a display device, including: providing a second signal to a pressure detecting electrode to enable display of the panel component during a display phase; and performing the pressure to the pressure during a touch pressure detecting phase
  • the detection electrode provides a third signal.
  • the first electrode and the second electrode can cause the first panel to present a raster stripe when power is applied, in the display phase, to the second The electrode provides a fourth signal to cause the first panel to form a grating stripe; or, in the case where the first electrode and the second electrode are capable of rendering the first panel presenting a liquid crystal lens upon power up,
  • a fifth signal is provided to the second electrode such that the first panel forms a liquid crystal lens.
  • the sixth signal is provided to the second electrode, and the sixth signal is synchronized with the third signal of the pressure detecting electrode.
  • the third signal is a pulse signal.
  • An embodiment of the present disclosure provides a display device and a driving method thereof, including a middle frame, a panel assembly on one side of the middle frame, and a circuit board on the other side of the middle frame, the middle frame being a conductive material and grounded; the display device further includes a pressure detecting unit; a pressure detecting electrode is disposed between the outermost two substrate substrates of the panel assembly, the pressure detecting electrode and the middle frame may form a capacitor; and the pressure detecting unit is respectively connected with the pressure detecting electrode and the middle frame for detecting the pressure Detect the capacitance between the electrode and the middle frame.
  • the larger the touch pressure is, the smaller the distance between the pressure detecting electrode and the middle frame is, the larger the capacitance between the pressure detecting electrode and the middle frame is.
  • the pressure detecting unit detects the capacitance value between the pressure detecting electrode and the middle frame to determine the pressure. the size of.
  • the embodiment of the present disclosure can detect the pressure by providing a layer of electrodes, that is, pressure detecting electrodes, in the panel assembly, so that the thickness of the display device can be reduced.
  • 1 is a schematic view of a touch panel
  • FIG. 2 is a schematic diagram of another touch panel
  • FIG. 3 is a schematic diagram of a display device according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of another display device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a first panel according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a pressure detecting electrode according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of another pressure detecting electrode according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a driving method of a display device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of another driving method of a display device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of a driving method for implementing a 3D display by a display device according to an embodiment of the present disclosure
  • FIG. 12 is a schematic diagram of another driving method for implementing a 3D display by a display device according to an embodiment of the present disclosure
  • FIG. 13 is a schematic diagram of a driving signal according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic diagram of another driving signal according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic diagram of still another driving signal according to an embodiment of the present disclosure.
  • a touch panel 10 includes a touch electrode layer 14 formed on a base substrate 11 , and the touch electrode layer 14 includes a driving electrode 12 and a sensing electrode 13 .
  • the drive electrode 12 and the sense electrode 13 are located in the same layer, and a capacitance is formed between the drive electrode 12 and the sense electrode 13.
  • the capacitance between the driving electrode 12 and the sensing electrode 13 changes at the touch position, thereby detecting the touch position.
  • the touch panel 10 can also detect the touch pressure.
  • the touch panel 10 further includes a first pressure detecting electrode 16 and a second pressure detecting electrode 18 .
  • the first pressure detecting electrode 16 is insulated from the touch electrode layer 14 by the first insulating layer 15 .
  • a second insulating layer 17 is disposed between the first pressure detecting electrode 16 and the second pressure detecting electrode 18.
  • the capacitance between the first pressure detecting electrode 16 and the second pressure detecting electrode 18 is inversely proportional to the distance between the first pressure detecting electrode 16 and the second pressure detecting electrode 18.
  • the distance between the first pressure detecting electrode 16 and the second pressure detecting electrode 18 is reduced at the touch position, and the first pressure detecting electrode 16 and the second pressure detecting electrode 18 are at the touch position.
  • the capacitance between them increases. Therefore, by detecting the magnitude of the capacitance between the first pressure detecting electrode 16 and the second pressure detecting electrode 18, the magnitude of the touch pressure can be determined.
  • the first pressure detecting electrode 16 and the second pressure detecting electrode 18 are added to the touch panel 10,
  • the first insulating layer 15 and the second insulating layer 17 increase the thickness of the touch panel 10, which does not conform to the trend of thinning and thinning of the product; and the first pressure detecting electrode 16 and the second pressure detecting electrode 18 are opposite to the touch electrode layer.
  • the touch signal of 14 has a shielding effect, so that the touch function is affected.
  • an embodiment of the present disclosure provides a display device 20 including a middle frame 2, a panel assembly 3 on one side of the middle frame 2, and a circuit board 8 on the other side of the middle frame 2.
  • the middle frame 2 is a conductive material and is grounded.
  • the display device 20 further includes a pressure detecting unit 4; two outermost substrate substrates of the panel assembly 3 (including a first base substrate 31 close to the middle frame 2 and a second base substrate 32 relatively far from the middle frame 2) Provided between the pressure detecting electrodes 33, that is, the panel assembly includes a first substrate and a pressure detecting electrode on a side of the first substrate away from the middle frame, the second substrate is disposed The pressure detecting electrode 33 and the middle frame 2 may form a capacitor on a side of the pressure detecting electrode away from the first base substrate. In Fig. 3, other structures of the two outermost substrate substrates of the panel assembly 3 are not shown.
  • the pressure detecting unit 4 is connected to the pressure detecting electrode 33 and the middle frame 2, respectively, for detecting the capacitance value between the pressure detecting electrode 33 and the middle frame 2.
  • a pressure detecting electrode 33 is disposed between the outermost two substrate substrates of the panel assembly 3, and the pressure detecting electrode 33 may be a first base substrate located near the middle frame 2 as shown in FIG. 31. Other substrate substrates may be disposed between the outermost two substrate substrates, and the pressure detecting electrodes 33 may be disposed on other substrate substrates.
  • the pressure detecting electrode 33 may be an electrode in the conventional panel assembly, or may be a layer of electrodes added for pressure detection, which is not limited herein.
  • the panel assembly also includes other film or layer structures.
  • the embodiments of the present disclosure and the drawings are merely examples of related films or layer structures that can explain the inventive aspects of the present disclosure, and other structures are not described.
  • a capacitor is typically constructed of two conductors that are relatively close in distance and insulated from one another.
  • there is no other conductive layer between the pressure detecting electrode 33 and the middle frame 2 and the pressure detecting electrode 33 and the middle frame 2 can form a capacitor.
  • display devices such as mobile phones and tablet computers are provided with a middle frame, one side of the middle frame is a display panel, and the other side is provided with a circuit board, etc.
  • the middle frame is generally made of metal (aluminum), and the middle The frame is grounded.
  • the embodiment of the present disclosure can detect the pressure by setting a layer of electrodes in the panel assembly, that is, the pressure detecting electrode is matched with the middle frame, in comparison with the pressure of the two electrodes. Thereby the thickness of the display device can be reduced.
  • the edges of the middle frame, panel assembly, etc. are fixed to the bezel of the display device.
  • the distance between the pressure detecting electrode 33 and the middle frame 2 in the panel assembly 3 is reduced, and the capacitance value between the pressure detecting electrode 33 and the middle frame 2 and the pressure detecting electrode 33 and the middle frame
  • the distance between 2 is inversely proportional, that is, the larger the pressure, the smaller the distance between the pressure detecting electrode 33 and the middle frame 2, and the larger the capacitance between the pressure detecting electrode 33 and the middle frame 2.
  • the pressure detecting unit 4 detects the capacitance value between the pressure detecting electrode 33 and the middle frame 2 to determine the magnitude of the pressure.
  • An embodiment of the present disclosure provides a display device including a middle frame, a panel assembly on one side of the middle frame, and a circuit board on the other side of the middle frame, the middle frame being a conductive material and grounded; the display device further includes a pressure detecting unit a pressure detecting electrode is disposed between the outermost two substrate substrates of the panel assembly, and the pressure detecting electrode and the middle frame form a capacitor; the pressure detecting unit is respectively connected to the pressure detecting electrode and the middle frame for detecting the pressure detecting electrode and The capacitance value between the middle frames.
  • the larger the touch pressure is, the smaller the distance between the pressure detecting electrode and the middle frame is, the larger the capacitance between the pressure detecting electrode and the middle frame is.
  • the pressure detecting unit detects the capacitance value between the pressure detecting electrode and the middle frame to determine the pressure. the size of.
  • the embodiment of the present disclosure can detect the pressure by setting a layer of electrodes, that is, pressure detecting electrodes, in the panel assembly, thereby reducing the thickness of the display device.
  • the display device provided by the embodiment of the present disclosure is, for example, a mobile terminal.
  • the display device provided by the embodiment of the present disclosure may be, for example, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, or the like, or any product or component having a display function.
  • a spacer 5 is disposed between the middle frame 2 and the panel assembly 3.
  • the spacer 5 has a certain space between the middle frame 2 and the panel assembly 3.
  • the distance between the pressure detecting electrode 33 and the middle frame 2 in the panel assembly 3 is reduced, and the capacitance value between the pressure detecting electrode 33 and the middle frame 2 is between the pressure detecting electrode 33 and the middle frame 2
  • the distance is inversely proportional, that is, the larger the pressure, the smaller the distance between the pressure detecting electrode 33 and the middle frame 2, and the larger the capacitance between the pressure detecting electrode 33 and the middle frame 2.
  • the spacer 5 shown in Fig. 4 is made of an elastic material.
  • the change in the distance between the pressure detecting electrode 33 and the middle frame 2 in the panel assembly 3 is more obvious, so that the amount of change in the capacitance is larger, which is advantageous for the detection of the pressure.
  • the panel assembly 3 includes a first panel 37 and a second panel that are stacked in a stack. 38.
  • the first panel 37 is located between the second panel 38 and the middle frame 2; the first panel 37 includes pressure detecting electrodes 33.
  • the first panel 37 includes the first substrate substrate 31, the first opposite substrate substrate 36, and the first electrode 33 of the two outermost substrate substrates of the panel assembly 3 which are adjacent to the middle frame 2.
  • the second panel 38 includes a second substrate 32 and a second opposite substrate 35 away from the middle frame 2 of the two outermost substrate substrates of the panel assembly 3.
  • a transparent adhesive 34 is disposed between the first panel 37 and the second panel 38, and the first panel 37 and the second panel 38 are bonded together by the transparent adhesive 34 to form the panel assembly 3.
  • the pressure detecting electrode is located on the first substrate of the innermost frame of the two outermost substrates of the panel assembly to avoid providing another conductive layer between the pressure detecting electrode and the middle frame, so that The pressure detecting electrode and the middle frame cannot form a capacitor, which affects the effect of pressure detection.
  • the second panel 38 is a liquid crystal display panel; the first panel 37 is a liquid crystal grating or a liquid crystal lens.
  • the panel assembly 3 can be used to implement 3D display.
  • the liquid crystal grating is formed by forming a light-transmitting and opaque grating stripe so that the left eye of the user receives the left-eye image and the right eye receives the right-eye image, thereby realizing the naked-eye 3D display.
  • the liquid crystal lens is formed by forming a lens to cause the left eye of the user to receive the left eye image, and the right eye to receive the right eye image, thereby realizing the naked eye 3D display.
  • the second panel is a liquid crystal display panel, and the second panel includes, for example, an array substrate and a color filter substrate.
  • the light incident side of the second panel is provided with a first polarizer, and the second panel is provided with a second polarizer.
  • the absorption axes of the first polarizer and the second polarizer are perpendicular.
  • the light incident side of the first panel is provided with a third polarizer, and the third polarizer is perpendicular to the absorption axis of the first polarizer.
  • the first panel 37 includes a first substrate and a second substrate disposed opposite each other, and a liquid crystal 7 between the first substrate and the second substrate.
  • the first substrate includes: a first substrate 33 inside the first substrate substrate 31 and the first substrate substrate 31 (ie, the first substrate substrate is close to the second substrate side) (ie, the pressure detecting electrode 33); the second substrate
  • the second electrode 39 is disposed on the inner side of the first opposite substrate substrate 36 and the first opposite substrate substrate 36 (ie, the second substrate substrate is close to the first substrate side).
  • the first electrode 33 and the second electrode 39 may cause the first panel to exhibit a grating stripe or present a liquid crystal lens upon power up.
  • the first substrate is adjacent to the middle frame, and the first substrate 31 is, for example, the outermost base of the panel assembly.
  • the board ie, the first base substrate is the base substrate of the panel assembly closest to the middle frame;
  • the pressure detecting electrode 33 is, for example, a first electrode.
  • the pressure detecting electrode is multiplexed with the first electrode on the first panel, that is, in the display stage, the first electrode and the second electrode may cause the first panel to present a grating stripe or present a liquid crystal lens.
  • the pressure detecting electrode and the middle frame form a capacitor. Therefore, it is not necessary to add other electrodes to the existing display device, which is advantageous for the display device to be thin and light.
  • the first electrode when the first panel is a liquid crystal grating, the first electrode may be a surface electrode, the second electrode may be a strip electrode, and when the first electrode and the second electrode are powered, the first electrode and the second electrode form an electric field, The electric field drives the liquid crystal to deflect, so that light and dark grating stripes can be formed.
  • the first electrode may also be a strip electrode and the second electrode may be a surface electrode.
  • the first electrode when the first panel is a liquid crystal lens, the first electrode may be a surface electrode, the second electrode may be a strip electrode, the second electrode includes a plurality of electrode groups, each electrode group includes a plurality of strip electrodes; the first electrode When the second electrode is powered, the first electrode and the second electrode form an electric field, and the strip electrodes in each electrode group have different voltages, thereby driving the liquid crystal to deflect to form a liquid crystal lens.
  • the first electrode may be a strip electrode and the second electrode may be a surface electrode.
  • the pressure detecting electrode 33 includes a plurality of sub-electrodes 331 arranged in an array.
  • the plurality of sub-electrodes 331 are arranged in an array, and each of the sub-electrodes 331 has a two-dimensional coordinate (x, y).
  • the pressure detecting unit is further configured to determine the touch position according to the capacitance between the sub-electrode and the middle frame and the coordinates of the sub-electrode. That is, the display device provided by the embodiment of the present disclosure can also determine the touch position by detecting the capacitance between the middle frame and the pressure detecting electrode.
  • the plurality of sub-electrodes 331 are located in the same column (the direction shown in FIG. 7)
  • the light shielding pattern 6 is provided between each adjacent two sub-electrodes 331 of one row, and the width of the light shielding pattern 6 and the sub-electrode 331 in the row direction (the width in the 101 direction shown in FIG. 7) is the same.
  • the grating strips include spaced light-transmissive column strips and opaque column stripe portions, in order to avoid streaks in the opaque column stripes adjacent Light is leaked between the two sub-electrodes.
  • a light shielding pattern is disposed between each adjacent two sub-electrodes of the same column.
  • the pressure detecting unit is further configured to determine a capacitance value between the pressure detecting electrode and the middle frame according to a capacitance value between the pressure detecting electrode and the middle frame and a correspondence relationship between the capacitance value and the pressure level. The corresponding pressure level.
  • the pressure detecting unit determines the pressure detecting electrode according to the capacitance value between the pressure detecting electrode and the middle frame and the correspondence between the capacitance value and the pressure level.
  • the pressure level corresponding to the capacitance value between the middle frames is to set a specific operation with different pressure levels according to the corresponding pressure level. For example, the level at which the pressure is set to the minimum is accidentally touched without performing the corresponding operation.
  • An embodiment of the present disclosure provides a driving method of a display device, including: providing a first signal to a pressure detecting electrode such that a pressure detecting electrode and a middle frame form a capacitor.
  • a driving method of a display device provides a third signal to a pressure detecting electrode such that a pressure detecting electrode and a middle frame form a capacitor, and a magnitude of a pressure is determined by detecting a capacitance value of the pressure detecting electrode and the middle frame. It is only necessary to add a layer of pressure detecting electrodes to the existing display device to detect the pressing force, which is beneficial to the lightening and thinning of the display device.
  • the first signal is a pulse signal. Since the sub-electrode array is arranged, when the first signal is a pulse signal, the lateral electrodes may sequentially emit excitation signals, and the longitudinal electrodes may simultaneously receive signals to further determine the touch position according to the size of the capacitance.
  • An embodiment of the present disclosure provides a driving method of a display device, as shown in FIG. 9, including:
  • Step S101 In the display phase, a second signal is provided to the pressure detecting electrode to enable the panel assembly to perform display.
  • Step S102 In the touch pressure detecting phase, the third signal is supplied to the pressure detecting electrode such that the pressure detecting electrode and the middle frame form a capacitor.
  • the pressure detecting electrodes can form a capacitor with the middle frame.
  • a driving method of a display device provides a second signal to a pressure detecting electrode to enable display of a panel assembly during a display phase, and a third signal to a pressure detecting electrode during a touch pressure detecting phase, So that the pressure detecting electrode and the middle frame form a capacitor.
  • the magnitude of the pressing force is determined by detecting the capacitance values of the pressure detecting electrode and the middle frame. That is, in the embodiment of the present disclosure, the magnitude of the pressing force can be detected without adding other films.
  • the third signal is a pulse signal. Since the sub-electrode array is arranged, when the third signal is a pulse signal, the lateral electrode can be The excitation signal is sequentially emitted, and the longitudinal electrodes can simultaneously receive signals to further determine the touch position according to the size of the capacitance.
  • step S102 is specifically: providing a sixth signal to the second electrode during the touch pressure detection phase, and the sixth signal of the second electrode and the third signal of the pressure detecting electrode in the touch pressure detecting phase Synchronize.
  • the signals of the second electrode and the pressure detecting electrode are synchronized to further shield the signal of the display panel.
  • the sixth signal is the same as the third signal to further shield the signal of the display panel.
  • step S101 is specifically: in the display phase, a fourth signal is supplied to the second electrode such that the first panel forms a grating stripe.
  • the second signal loaded by the pressure detecting electrode may have a constant voltage value, such as 0V;
  • the fourth signal loaded by the second electrode is a pulse signal, the second signal and the The four signals drive the liquid crystal to deflect to form grating stripes.
  • the fourth signal is a pulse signal, and the second signal voltage is opposite to the electric field of the high level of the fourth signal and the second signal voltage is opposite to the electric field formed by the low level of the fourth signal, and the polarization of the liquid crystal can be avoided. Thereby improving the life of the liquid crystal grating device.
  • a pulse signal (ie, a third signal) is supplied to the pressure detecting electrode, and the pressure detecting electrode and the middle frame form a capacitor.
  • step S102 is specifically: providing a sixth signal to the second electrode during the touch pressure detection phase, and the sixth signal of the second electrode and the third signal of the pressure detecting electrode in the touch pressure detecting phase Synchronize.
  • the signals of the second electrode and the pressure detecting electrode are synchronized to further shield the signal of the display panel.
  • the sixth signal is a constant voltage signal as an example.
  • a sixth signal is provided to the second electrode, and the sixth signal of the second electrode in the touch pressure detecting phase is synchronized with the third signal of the pressure detecting electrode, and the sixth signal is The same as the third signal, that is, the sixth signal is the same as the third signal, and is a pulse signal to further shield the signal of the display panel.
  • step S101 is specifically: providing a fifth signal to the second electrode in the display phase, so that the first panel forms a liquid crystal lens.
  • step S102 is specifically: providing a sixth signal to the second electrode during the touch pressure detection phase, and the sixth signal of the second electrode and the third signal of the pressure detecting electrode in the touch pressure detecting phase Synchronous drive.
  • the signal of the second electrode and the pressure detecting electrode is synchronized, which can be further Mask the signal from the display panel.
  • the sixth signal is the same as the third signal to further shield the signal of the display panel.
  • the first panel is a liquid crystal lens, and the first panel may be referred to as a liquid crystal grating.
  • the forming principle may refer to the prior art, and details are not described herein.
  • the second panel is a liquid crystal display panel
  • the liquid crystal display panel includes a plurality of gate lines and data lines.
  • a scan signal is supplied to the gate lines, and a data drive signal is supplied to the data lines, so that The liquid crystal display panel realizes display.
  • the gate line and the data line may also be provided with signals synchronously driven by the pressure detecting electrodes to shield the influence of the liquid crystal display panel on the first panel.
  • the gate signal and the data line are provided with the same third signal that is driven synchronously with the pressure detecting electrode to further shield the effect of the liquid crystal display panel on the first panel.

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Abstract

一种显示设备及其驱动方法，能够使显示设备更轻薄。一种显示设备(20)，包括中框(2)和位于中框(2)一侧的面板组件(3)。中框(2)为导电材料且接地；显示设备还包括压力检测单元(4)；面板组件(3)的最外侧的两个衬底基板之间设置有压力检测电极(33)；压力检测电极(33)和中框(2)可形成电容器；压力检测单元(4)分别与压力检测电极(33)和中框(2)连接，用于检测压力检测电极(33)和中框(2)间的电容值。

Description

显示设备及其驱动方法 技术领域
本公开的实施例涉及一种显示设备及其驱动方法。
背景技术
触控面板的应用使用户只要用手指触摸显示屏就能实现对主机的操作，从而摆脱了键盘和鼠标，人机交互更加直截。
触控面板依感应技术不同可区分为电阻式、电容式、光学式、音波式四种。电容式触控面板是利用感应电极与人体之间的静电结合所产生电容变化实现触控功能，其防火性、防污性、耐刮性较佳，反应速度较快。
发明内容
本公开的实施例提供一种显示设备及其驱动方法，所述显示设备在不增设电极层的情况下，可检测压力大小，使产品更加轻薄。
本公开的实施例提供一种显示设备，包括：中框，由导电材料制成；面板组件，位于所述中框的一侧；以及压力检测单元，其中，所述面板组件包括第一衬底基板以及位于所述第一衬底基板远离所述中框一侧的压力检测电极，所述压力检测电极和所述中框形成电容；所述压力检测单元分别与所述压力检测电极和所述中框连接，用于检测所述压力检测电极和所述中框之间的电容值。
例如，在本公开实施例提供的显示设备中，所述中框接地。
例如，在本公开实施例提供的显示设备中，所述面板组件还包括第二衬底基板，所述第二衬底基板设置于所述压力检测电极远离所述第一衬底基板的一侧。
例如，本公开实施例提供的显示设备，还包括电路板，所述电路板设置于所述中框远离所述面板组件的一侧。
例如，本公开实施例提供的显示设备，还包括隔垫物，所述隔垫物设置于所述中框和所述面板组件之间。
例如，在本公开实施例提供的显示设备中，所述隔垫物由弹性材料制成。
例如，在本公开实施例提供的显示设备中，所述面板组件包括层叠设置的第一面板和第二面板，所述第一面板位于所述第二面板和所述中框之间；所述第一面板包括所述压力检测电极。
例如，在本公开实施例提供的显示设备中，所述第二面板为液晶显示面板；所述第一面板为液晶光栅或者液晶透镜。
例如，在本公开实施例提供的显示设备中，所述第一面板包括：相对设置的第一基板和第二基板，以及位于所述第一基板和所述第二基板之间的液晶；所述第一基板包括：第一衬底基板和位于所述第一衬底基板接近于所述第二基板一侧的第一电极，所述第二基板包括：第二衬底基板和位于所述第二衬底基板接近于所述第一基板一侧的第二电极，所述第一电极和所述第二电极在加电时可使所述第一面板呈现光栅条纹或呈现液晶透镜；所述第一基板靠近所述中框，所述第一衬底基板为所述面板组件最接近所述中框的衬底基板，所述压力检测电极为所述第一电极。
例如，在本公开实施例提供的显示设备中，所述压力检测电极包括阵列排布的多个子电极；所述压力检测单元还用于根据所述子电极与所述中框间的电容，以及所述子电极所在坐标，确定触控位置。
例如，在本公开实施例提供的显示设备中，所述压力检测电极包括阵列排布的多个子电极；所述压力检测单元还用于根据所述子电极与所述中框间的电容，以及所述子电极所在坐标，确定触控位置。
例如，在本公开实施例提供的显示设备中，所述第一面板包括：相对设置的第一基板和第二基板，以及位于所述第一基板和所述第二基板之间的液晶；所述第一基板包括：第一衬底基板和位于所述第一衬底基板接近于所述第二基板一侧的第一电极，所述第二基板包括：第二衬底基板和位于所述第二衬底基板接近于所述第一基板一侧的第二电极，所述第一电极和所述第二电极在加电时可使所述第一面板呈现光栅条纹的情况下，在所述多个子电极中，位于同一列的每相邻两个所述子电极之间设置有遮光图案，所述遮光图案与所述子电极在行方向的宽度相同。
例如，在本公开实施例提供的显示设备中，所述压力检测单元还用于：根据所述压力检测电极和所述中框间的电容值以及电容值与压力级别的对应 关系，确定所述压力检测电极和所述中框间的电容值所对应的压力级别。
本公开的实施例还提供一种显示设备的驱动方法，包括：向压力检测电极提供第一信号。
例如，在本公开实施例提供的驱动方法中，在所述压力检测电极包括阵列排布的多个子电极的情况下，所述第一信号为脉冲信号。
本公开的实施例还提供一种显示设备的驱动方法，包括：在显示阶段，向压力检测电极提供第二信号，以使得所述面板组件实现显示；在触控压力检测阶段，向所述压力检测电极提供第三信号。
例如，在本公开实施例提供的驱动方法中，在所述第一电极和所述第二电极在加电时可使所述第一面板呈现光栅条纹的情况下，在显示阶段，向第二电极提供第四信号，以使得所述第一面板形成光栅条纹；或者，在所述第一电极和所述第二电极在加电时可使所述第一面板呈现液晶透镜的情况下，在显示阶段，向第二电极提供第五信号，以使得所述第一面板形成液晶透镜。
例如，在本公开实施例提供的驱动方法中，在触控压力检测阶段，向所述第二电极提供第六信号，且所述第六信号与所述压力检测电极的第三信号同步。
例如，在本公开实施例提供的驱动方法中，在所述压力检测电极包括阵列排布的多个子电极的情况下，所述第三信号为脉冲信号。
本公开的实施例提供一种显示设备及其驱动方法，包括中框、位于中框一侧的面板组件以及位于中框另一侧的电路板，中框为导电材料且接地；显示设备还包括压力检测单元；面板组件的最外侧的两个衬底基板之间设置有压力检测电极，压力检测电极和中框可形成电容器；压力检测单元分别与压力检测电极和中框连接，用于检测压力检测电极和中框间的电容值。由于触摸压力越大，压力检测电极和中框之间的距离越小，压力检测电极和中框之间电容越大，因此，压力检测单元检测压力检测电极和中框间的电容值可以确定压力的大小。相对于通过设置两层电极来检测压力大小，本公开实施例可以在面板组件中设置一层电极即压力检测电极就可以检测压力大小，从而可以减小显示设备的厚度。
附图说明
为了更清楚地说明本公开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地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，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为一种触控面板示意图；
图2为另一种触控面板示意图；
图3为本公开实施例提供的一种显示设备示意图；
图4为本公开实施例提供的另一种显示设备示意图；
图5为本公开实施例提供的一种显示设备具体结构示意图；
图6为本公开实施例提供的一种第一面板的结构示意图；
图7为本公开实施例提供的一种压力检测电极示意图；
图8为本公开实施例提供的另一种压力检测电极示意图；
图9为本公开实施例提供的一种显示设备的驱动方法示意图；
图10为本公开实施例提供的另一种显示设备的驱动方法示意图；
图11为本公开实施例提供的一种显示设备实现3D显示的驱动方法示意图；
图12为本公开实施例提供的另一种显示设备实现3D显示的驱动方法示意图；
图13为本公开实施例提供的一种驱动信号的示意图；
图14为本公开实施例提供的另一种驱动信号的示意图；以及
图15为本公开实施例提供的再一种驱动信号的示意图。
附图标记
2-中框；3-面板组件；4-压力检测单元；5-隔垫物；6-遮光图案；7-液晶；8-电路板；10-触控面板；11-衬底基板；12-驱动电极；13-感应电极；14-触控电极层；15-第一绝缘层；16-第一压力检测电极；17-第二绝缘层；18-第二压力检测电极；20-显示设备；31-第一衬底基板；32-第二衬底基板；33-压力检测电极；34-透明胶；35-第二相对衬底基板；36-第一相对衬底基板；37-第一面板；38-第二面板；39-第二电极；331-子电极。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”、“一”或者“该”等类似词语也不表示数量限制，而是表示存在至少一个。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
如图1所示，一种触控面板10，包括形成在衬底基板11上的触控电极层14，触控电极层14包括驱动电极12和感应电极13。驱动电极12和感应电极13位于同一层，驱动电极12和感应电极13之间形成电容。当用户触摸触控面板10时，在触控位置处驱动电极12和感应电极13之间的电容发生变化，从而检测到该触控位置。
例如，触控面板10还可以实现触控压力的检测。例如，如图2所示，触控面板10还包括第一压力检测电极16、第二压力检测电极18。第一压力检测电极16通过第一绝缘层15与触控电极层14绝缘。第一压力检测电极16和第二压力检测电极18之间设置有第二绝缘层17。例如，第一压力检测电极16和第二压力检测电极18之间的电容与第一压力检测电极16和第二压力检测电极18的距离成反比。当用户触摸触控面板10时，在触控位置处第一压力检测电极16和第二压力检测电极18的距离减小，在触控位置处第一压力检测电极16和第二压力检测电极18之间的电容增大。因此，通过检测第一压力检测电极16和第二压力检测电极18之间的电容大小，可以确定触控压力的大小。
由于触控面板10上增设了第一压力检测电极16、第二压力检测电极18、 第一绝缘层15以及第二绝缘层17，使得触控面板10的厚度增加，不符合产品轻薄化的发展趋势；并且，第一压力检测电极16和第二压力检测电极18对触控电极层14的触控信号有屏蔽作用，使得触控功能受到影响。
例如，如图3所示，本公开实施例提供了一种显示设备20，包括中框2、位于中框2一侧的面板组件3以及位于中框2另一侧的电路板8。中框2为导电材料且接地。
例如，显示设备20还包括压力检测单元4；面板组件3的最外侧的两个衬底基板(包括靠近中框2的第一衬底基板31和相对远离中框2的第二衬底基板32)之间设置有压力检测电极33，即所述面板组件包括第一衬底基板以及位于所述第一衬底基板远离所述中框一侧的压力检测电极，所述第二衬底基板设置于所述压力检测电极远离所述第一衬底基板的一侧，压力检测电极33和中框2可形成电容器。图3中，面板组件3最外侧的两个衬底基板的其他结构未示出。
例如，压力检测单元4分别与压力检测电极33和中框2连接，用于检测压力检测电极33和中框2之间的电容值。
需要说明的是，面板组件3的最外侧的两个衬底基板之间设置有压力检测电极33，该压力检测电极33可以是如图3所示，位于靠近中框2的第一衬底基板31上。最外侧的两个衬底基板之间还可以设置有其他衬底基板，压力检测电极33还可以设置在其他衬底基板上。压力检测电极33可以是现有的面板组件中的电极，也可以是为实现压力检测而增设的一层电极，在此不做限定。
例如，面板组件还包括其他薄膜或层结构，本公开实施例及附图仅以能说明本公开的发明点的相关薄膜或层结构为例，其他结构不一一说明。
例如，电容器一般由两个距离比较接近且彼此绝缘的导体构成。例如，压力检测电极33和中框2之间没有其他的导电层，压力检测电极33和中框2可形成电容器。
需要说明的是，例如手机、平板电脑等显示设备均设置有中框，中框的一侧为显示面板，另一侧设置有电路板等，中框一般采用金属(铝)制成，且中框接地。相对于通过设置两层电极来检测压力大小，本公开实施例可以在面板组件中设置一层电极即压力检测电极配合中框就可以检测压力大小， 从而可以减小显示设备的厚度。
例如，中框、面板组件等的边缘固定在显示设备的边框上。按压显示设备的面板组件时，面板组件3中的压力检测电极33与中框2之间的距离减小，而压力检测电极33和中框2之间的电容值与压力检测电极33和中框2之间的距离成反比，即压力越大，压力检测电极33和中框2之间的距离越小，压力检测电极33和中框2之间电容越大。压力检测单元4检测压力检测电极33和中框2间的电容值，以确定压力的大小。
本公开实施例提供了一种显示设备，包括中框、位于中框一侧的面板组件以及位于中框另一侧的电路板，中框为导电材料，且接地；显示设备还包括压力检测单元；面板组件的最外侧的两个衬底基板之间设置有压力检测电极，压力检测电极和中框可形成电容器；压力检测单元分别与压力检测电极和中框连接，用于检测压力检测电极和中框间的电容值。由于触摸压力越大，压力检测电极和中框之间的距离越小，压力检测电极和中框之间电容越大，因此，压力检测单元检测压力检测电极和中框间的电容值可以确定压力的大小。相对于现有技术通过设置两层电极来检测压力大小，本公开实施例可以在面板组件中设置一层电极即压力检测电极就可以检测压力大小，从而可以减小显示设备的厚度。
本公开实施例提供的显示设备例如为移动终端。本公开实施例提供的显示设备例如可以是手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
例如，如图4所示，中框2和面板组件3之间设置有隔垫物5。隔垫物5使得中框2与面板组件3之间具有一定的空间。在按压显示设备时，面板组件3中的压力检测电极33与中框2之间的距离减小，压力检测电极33和中框2之间的电容值与压力检测电极33和中框2之间的距离成反比，即压力越大，压力检测电极33和中框2之间的距离越小，压力检测电极33和中框2之间电容越大。
例如，图4所示的隔垫物5由弹性材料制成。则按压显示设备时，面板组件3中的压力检测电极33与中框2之间的距离变化更加明显，从而使得电容的变化量更大，有利于压力大小的检测。
例如，如图5所示，面板组件3包括层叠设置的第一面板37和第二面板 38，第一面板37位于第二面板38和中框2之间；第一面板37包括压力检测电极33。
例如，如图5所示，第一面板37包括面板组件3的最外侧的两个衬底基板中靠近中框2的第一衬底基板31、第一相对衬底基板36以及第一电极33。第二面板38包括面板组件3的最外侧的两个衬底基板中远离中框2的第二衬底基板32以及第二相对衬底基板35。
例如，第一面板37和第二面板38之间设置有透明胶34，第一面板37和第二面板38通过透明胶34粘合在一起形成面板组件3。
在本公开实施例中，压力检测电极位于面板组件的最外侧的两个衬底基板中靠近中框的第一衬底基板上，以避免压力检测电极和中框之间设置其他导电层，使得压力检测电极和中框不能形成电容器，影响压力检测的效果。
例如，第二面板38为液晶显示面板；第一面板37为液晶光栅或者液晶透镜。
例如，第一面板37为液晶光栅或液晶透镜，则该面板组件3可用于实现3D显示。液晶光栅是通过形成透光和不透光的光栅条纹以分像，使得用户的左眼接收左眼图像，右眼接收右眼图像，从而实现裸眼3D显示。液晶透镜是通过形成透镜以分像，使得用户的左眼接收左眼图像，右眼接收右眼图像，从而实现裸眼3D显示。
例如，第二面板为液晶显示面板，则第二面板例如包括阵列基板和彩膜基板，第二面板的入光侧设置有第一偏光片，在第二面板的出光侧设置有第二偏光片，第一偏光片和第二偏光片的吸收轴垂直。第一面板的入光侧设置有第三偏光片，且第三偏光片与第一偏光片的吸收轴垂直。
例如，如图6所示，第一面板37包括：相对设置的第一基板和第二基板，以及位于第一基板和第二基板之间的液晶7。第一基板包括：第一衬底基板31和第一衬底基板31内侧(即第一衬底基板接近于第二基板一侧)的第一电极33(即压力检测电极33)；第二基板包括：第一相对衬底基板36和第一相对衬底基板36内侧(即第二衬底基板接近于所述第一基板一侧)的第二电极39。例如，第一电极33和第二电极39在加电时可使第一面板呈现光栅条纹或呈现液晶透镜。
例如，第一基板靠近中框，第一衬底基板31例如为面板组件最外侧的基 板(即第一衬底基板为面板组件最接近中框的衬底基板)；压力检测电极33例如为第一电极。
例如，本公开实施例提供的显示设备，压力检测电极与第一面板上的第一电极复用，即在显示阶段，第一电极和第二电极可使第一面板呈现光栅条纹或呈现液晶透镜；在触控压力检测阶段，压力检测电极和中框形成电容器。因此，无需在现有的显示设备增加其他电极，有利于显示设备实现轻薄化。
例如，第一面板为液晶光栅时，第一电极可以是面电极，第二电极可以是条状电极，第一电极和第二电极在加电时，第一电极和第二电极形成电场，该电场驱动液晶偏转，从而可以形成明暗相间的光栅条纹。
例如，第一电极也可以是条状电极，第二电极可以是面电极。
例如，第一面板为液晶透镜时，第一电极可以是面电极，第二电极可以是条状电极，第二电极包括多个电极组，每个电极组包括多个条状电极；第一电极和第二电极在加电时，第一电极和第二电极形成电场，每个电极组中的条状电极电压不同，从而驱动液晶偏转形成液晶透镜。
例如，第一电极可以是条状电极，第二电极可以是面电极。
例如，如图7所示，压力检测电极33包括阵列排布的多个子电极331。多个子电极331阵列排布，则每个子电极331具有二维坐标(x,y)。例如，压力检测单元还用于根据子电极与中框间的电容，以及子电极所在坐标，确定触控位置。即本公开实施例提供的显示设备，通过检测中框和压力检测电极之间的电容，还可以确定触控位置。
例如，在第一电极和第二电极在加电时可使所述第一面板呈现光栅条纹的情况下；如图8所示，多个子电极331中，位于同一列(图7所示102方向为一列)的每相邻两子电极331之间设置有遮光图案6，且遮光图案6与子电极331在行方向的宽度(图7所示的101方向的宽度)相同。
例如，在第一面板为液晶光栅的情况下，由于多个子电极形成光栅条纹，光栅条纹包括间隔的透光列条纹和不透光列条纹部分，为了避免在不透光列条纹在相邻的两个子电极之间漏光，本公开实施例在同一列的每相邻两子电极之间设置有遮光图案。
例如，压力检测单元还用于，根据压力检测电极和中框之间的电容值以及电容值与压力级别的对应关系，确定压力检测电极和中框之间的电容值所 对应的压力级别。
例如，可以根据存储的电容值与压力级别的对应关系，例如可以是查找表，压力检测单元根据压力检测电极和中框间的电容值以及电容值与压力级别的对应关系，确定压力检测电极和中框间的电容值所对应的压力级别，以根据对应的压力级别设置压力大小不同的具体操作。例如，设定压力最小的级别为不小心误触，而不执行对应的操作。
本公开实施例提供了一种显示设备的驱动方法，包括：向压力检测电极提供第一信号，以使得压力检测电极和中框形成电容器。
本公开实施例提供的一种显示设备的驱动方法，向压力检测电极提供第三信号，以使得压力检测电极和中框形成电容器，通过检测压力检测电极和中框的电容值确定压力的大小。仅需在现有显示设备增加一层压力检测电极就可以实现按压力度大小的检测，有利于显示设备的轻薄化。
例如，在压力检测电极包括阵列排布的多个子电极的情况下，第一信号为脉冲信号。由于子电极阵列排布，第一信号为脉冲信号时，横向的电极可以是依次发出激励信号，纵向的电极可以同时接收信号，以根据电容的大小进一步确定触摸位置。
本公开实施例提供了一种显示设备的驱动方法，如图9所示，包括：
步骤S101：在显示阶段，向压力检测电极提供第二信号，以使得面板组件实现显示。
步骤S102：在触控压力检测阶段，向压力检测电极提供第三信号，以使得压力检测电极和中框形成电容器。
例如，在第三信号为脉冲信号或为恒压信号的情况下，压力检测电极均可以和中框形成电容器。
本公开实施例提供的一种显示设备的驱动方法，在显示阶段，向压力检测电极提供第二信号，以使得面板组件实现显示；在触控压力检测阶段，向压力检测电极提供第三信号，以使得压力检测电极和中框形成电容器。通过检测压力检测电极和中框的电容值确定按压力度的大小。即本公开实施例中，在不增加其他薄膜的情况下，就可以检测按压力度的大小。
例如，在压力检测电极包括阵列排布的多个子电极的情况下，第三信号为脉冲信号。由于子电极阵列排布，第三信号为脉冲信号时，横向的电极可 以是依次发出激励信号，纵向的电极可以同时接收信号，以根据电容的大小进一步确定触摸位置。
例如，如图10所示，步骤S102具体为：在触控压力检测阶段，向第二电极提供第六信号，且触控压力检测阶段第二电极的第六信号与压力检测电极的第三信号同步。第二电极和压力检测电极的信号同步，可以进一步屏蔽显示面板的信号。
例如，第六信号与第三信号相同，以进一步屏蔽显示面板的信号。
例如，在第一面板为液晶光栅的情况下；如图11所示，步骤S101具体为：在显示阶段，向第二电极提供第四信号，以使得第一面板形成光栅条纹。
例如，如图13所示，在显示阶段，压力检测电极所加载的第二信号可以具有一个恒定的电压值，例如0V；第二电极所加载的第四信号为脉冲信号，第二信号和第四信号驱动液晶偏转以形成光栅条纹。且第四信号为脉冲信号，第二信号电压与第四信号的高电平的电场和第二信号电压与第四信号的低电平形成的电场大小相同方向相反，还可以避免液晶极化，从而提升液晶光栅器件寿命。
例如，在触控压力检测阶段，向压力检测电极提供一个脉冲信号(即第三信号)，压力检测电极和中框形成电容器。
例如，如图13所示，步骤S102具体为：在触控压力检测阶段，向第二电极提供第六信号，且触控压力检测阶段第二电极的第六信号与压力检测电极的第三信号同步。第二电极和压力检测电极的信号同步，可以进一步屏蔽显示面板的信号。图13中以第六信号为恒压信号为例。
例如，如图14所示，在触控压力检测阶段，向第二电极提供第六信号，触控压力检测阶段第二电极的第六信号与压力检测电极的第三信号同步，且第六信号与第三信号相同，即第六信号与第三信号相同，均为脉冲信号，以进一步屏蔽显示面板的信号。
例如，在第一面板为液晶透镜的情况下，如图12所示，步骤S101具体为：在显示阶段，向第二电极提供第五信号，以使得第一面板形成液晶透镜。
例如，如图12所示，步骤S102具体为：在触控压力检测阶段，向第二电极提供第六信号，且触控压力检测阶段第二电极的第六信号与压力检测电极的第三信号同步驱动。第二电极和压力检测电极的信号同步，可以进一步 屏蔽显示面板的信号。
例如，第六信号与第三信号相同，以进一步屏蔽显示面板的信号。
例如，第一面板为液晶透镜可以参照第一面板为液晶光栅的描述，其形成原理可以参照现有技术，这里不作赘述。
例如，第二面板为液晶显示面板，液晶显示面板包括多条栅线和数据线，则在显示阶段，如图15所示，向栅线提供扫描信号，向数据线提供数据驱动信号，以使得液晶显示面板实现显示。
例如，在触控压力检测阶段，还可以向栅线和数据线提供与压力检测电极同步驱动的信号，以屏蔽液晶显示面板对于第一面板的影响。例如，向栅线和数据线提供与压力检测电极同步驱动相同的第三信号以进一步屏蔽液晶显示面板对于第一面板的影响。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。
本专利申请要求于2015年12月9日递交的中国专利申请第201510906674.2号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (19)

  1. 一种显示设备，包括：
    中框，由导电材料制成；
    面板组件，位于所述中框的一侧；以及
    压力检测单元，其中，
    所述面板组件包括第一衬底基板以及位于所述第一衬底基板远离所述中框一侧的压力检测电极，所述压力检测电极和所述中框形成电容；
    所述压力检测单元分别与所述压力检测电极和所述中框连接，用于检测所述压力检测电极和所述中框之间的电容值。
  2. 根据权利要求1所述的显示设备，其中，所述中框接地。
  3. 根据权利要求1或2所述的显示设备，其中，所述面板组件还包括第二衬底基板，所述第二衬底基板设置于所述压力检测电极远离所述第一衬底基板的一侧。
  4. 根据权利要求1-3任一项所述的显示设备，还包括电路板，所述电路板设置于所述中框远离所述面板组件的一侧。
  5. 根据权利要求1-4任一项所述的显示设备，还包括隔垫物，所述隔垫物设置于所述中框和所述面板组件之间。
  6. 根据权利要求5所述的显示设备，其中，所述隔垫物由弹性材料制成。
  7. 根据权利要求1-6任一项所述的显示设备，其中，所述面板组件包括层叠设置的第一面板和第二面板，所述第一面板位于所述第二面板和所述中框之间；所述第一面板包括所述压力检测电极。
  8. 根据权利要求7所述的显示设备，其中，所述第二面板为液晶显示面板；
    所述第一面板为液晶光栅或者液晶透镜。
  9. 根据权利要求7或8所述的显示设备，其中，
    所述第一面板包括：相对设置的第一基板和第二基板，以及位于所述第一基板和所述第二基板之间的液晶；
    所述第一基板包括：第一衬底基板和位于所述第一衬底基板接近于所述第二基板一侧的第一电极，
    所述第二基板包括：第二衬底基板和位于所述第二衬底基板接近于所述第一基板一侧的第二电极，
    所述第一电极和所述第二电极在加电时可使所述第一面板呈现光栅条纹或呈现液晶透镜；
    所述第一基板靠近所述中框，所述第一衬底基板为所述面板组件最接近所述中框的衬底基板，所述压力检测电极为所述第一电极。
  10. 根据权利要求1-6任一项所述的显示设备，其中，所述压力检测电极包括阵列排布的多个子电极；
    所述压力检测单元还用于根据所述子电极与所述中框间的电容，以及所述子电极所在坐标，确定触控位置。
  11. 根据权利要求7-9任一项所述的显示设备，其中，所述压力检测电极包括阵列排布的多个子电极；
    所述压力检测单元还用于根据所述子电极与所述中框间的电容，以及所述子电极所在坐标，确定触控位置。
  12. 根据权利要求11所述的显示设备，其中，
    所述第一面板包括：相对设置的第一基板和第二基板，以及位于所述第一基板和所述第二基板之间的液晶；
    所述第一基板包括：第一衬底基板和位于所述第一衬底基板接近于所述第二基板一侧的第一电极，
    所述第二基板包括：第二衬底基板和位于所述第二衬底基板接近于所述第一基板一侧的第二电极，
    所述第一电极和所述第二电极在加电时可使所述第一面板呈现光栅条纹的情况下，在所述多个子电极中，位于同一列的每相邻两个所述子电极之间设置有遮光图案，所述遮光图案与所述子电极在行方向的宽度相同。
  13. 根据权利要求1所述的显示设备，其中，所述压力检测单元还用于：根据所述压力检测电极和所述中框之间的电容值以及电容值与压力级别的对应关系，确定所述压力检测电极和所述中框之间的电容值所对应的压力级别。
  14. 一种如权利要求1-8、权利要求10和权利要求13任一项所述的显示设备的驱动方法，包括：向压力检测电极提供第一信号。
  15. 根据权利要求14所述的驱动方法，其中，在所述压力检测电极包括 阵列排布的多个子电极的情况下，所述第一信号为脉冲信号。
  16. 一种如权利要求9、权利要求11-13任一项所述的显示设备的驱动方法，包括：
    在显示阶段，向压力检测电极提供第二信号，以使得所述面板组件实现显示；
    在触控压力检测阶段，向所述压力检测电极提供第三信号。
  17. 根据权利要求16所述的驱动方法，其中，
    在所述第一电极和所述第二电极在加电时可使所述第一面板呈现光栅条纹的情况下，在显示阶段，向第二电极提供第四信号，以使得所述第一面板形成光栅条纹；或者，
    在所述第一电极和所述第二电极在加电时可使所述第一面板呈现液晶透镜的情况下，在显示阶段，向第二电极提供第五信号，以使得所述第一面板形成液晶透镜。
  18. 根据权利要求16所述的驱动方法，其中，在触控压力检测阶段，向所述第二电极提供第六信号，且所述第六信号与所述压力检测电极的第三信号同步。
  19. 根据权利要求16-18任一项所述的驱动方法，其中，在所述压力检测电极包括阵列排布的多个子电极的情况下，所述第三信号为脉冲信号。
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US20100149128A1 (en) * 2008-12-11 2010-06-17 No Sang-Yong Liquid crystal display panel having integrated pressure sending units
CN104992627A (zh) * 2015-07-29 2015-10-21 敦泰电子有限公司 具有压力检测器的显示模块
CN105404036A (zh) * 2015-12-09 2016-03-16 京东方科技集团股份有限公司 一种显示终端及其驱动方法

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CN105404036B (zh) 2019-09-06

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