WO2017012259A1 - 一种阵列基板及其驱动方法、显示面板、显示装置 - Google Patents

一种阵列基板及其驱动方法、显示面板、显示装置 Download PDF

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Publication number
WO2017012259A1
WO2017012259A1 PCT/CN2015/098044 CN2015098044W WO2017012259A1 WO 2017012259 A1 WO2017012259 A1 WO 2017012259A1 CN 2015098044 W CN2015098044 W CN 2015098044W WO 2017012259 A1 WO2017012259 A1 WO 2017012259A1
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WIPO (PCT)
Prior art keywords
line
signal
transistor
scan
palm print
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Application number
PCT/CN2015/098044
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English (en)
French (fr)
Inventor
刘英明
董学
王海生
陈小川
赵卫杰
李昌峰
丁小梁
杨盛际
刘红娟
王磊
刘伟
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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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 US15/327,025 priority Critical patent/US10055635B2/en
Publication of WO2017012259A1 publication Critical patent/WO2017012259A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
    • A61B5/1172—Identification of persons based on the shapes or appearances of their bodies or parts thereof using fingerprinting
    • 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
    • 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
    • G06F3/041661—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving using detection at multiple resolutions, e.g. coarse and fine scanning; using detection within a limited area, e.g. object tracking window
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/20—Movements or behaviour, e.g. gesture recognition
    • G06V40/28—Recognition of hand or arm movements, e.g. recognition of deaf sign language
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G02F1/13312—Circuits comprising photodetectors for purposes other than feedback

Definitions

  • the present invention relates to the field of display technologies, and in particular, to an array substrate and a driving method thereof, a display panel, and a display device.
  • Liquid crystal display has the advantages of low radiation, small size and low energy consumption, and is widely used in electronic products such as tablet computers, televisions or mobile phones. At the same time, the palmprint recognition technology is of great significance for enhancing the security of electronic devices and expanding the application range of electronic devices.
  • Embodiments of the present invention provide an array substrate and a driving method thereof, a display panel, and a display device, which have a palmprint recognition function and are simple in structure.
  • an array substrate including:
  • each repeating unit comprising a plurality of sub-pixels, each of the sub-pixels being provided with a display unit, wherein one of the sub-pixels is provided with a palm print recognition unit, and the display unit is connected to the first scan line and the data line for Turning on or off the corresponding display unit under the control of the first scan line, and inputting a data signal from the data line when turned on;
  • the touch electrode is connected to the touch electrode line for identifying the touch position
  • the palmprint recognition unit is connected to the second scan line, the control voltage end, and the read signal line, and is configured to collect a palmprint signal according to the touch position recognized by the touch electrode under the control of the control voltage end, and The collected palmprint signal is output to the read signal line under the control of the second scan line.
  • the display unit includes a first transistor and a pixel electrode; a gate of the first transistor is connected to the first scan line, a first pole is connected to the data line, and a second pole is opposite to the pixel The electrodes are connected.
  • the palm print recognition unit includes a second transistor and a third transistor, wherein the second transistor is a phototransistor; a gate and a first pole of the second transistor are both connected to the control voltage end, The second pole is connected to the first pole of the third transistor; the gate of the third transistor is connected to the second scan line, and the second pole is connected to the read signal line.
  • the palm print recognition unit includes a fourth transistor, the fourth transistor is a phototransistor; a gate of the four transistor is connected to the second scan line, and a first pole is connected to the control voltage end The second pole is connected to the read signal line.
  • the palm print recognition unit includes a fifth transistor, the fifth transistor is a photo transistor; a gate of the fifth transistor is connected to the second scan line, and the first pole and the control voltage end Connected, the second pole is connected to the read signal line; wherein, for any row of the palmprint identifying unit, a control voltage terminal connected to the palmprint identifying unit in the row is connected to the second scanning line.
  • the palm print recognition unit is disposed in the blue sub-pixel.
  • At least one of the touch electrode lines is shared with the corresponding read signal line.
  • a display panel including the above array substrate is provided.
  • a display device comprising the above display panel and a signal receiving device connected to a read signal line; the signal receiving device for receiving the read signal line output a palm print signal to identify palm print information based on the palm print signal.
  • a driving method of the above array substrate including:
  • one frame of scanning is performed to obtain palm print information
  • the performing the cyclic scan of at least one frame includes: inputting a scan signal to the first scan line row by row in the first stage of the ith frame, so as to turn on the corresponding display unit row by row, and open the data line
  • the display unit inputs a data signal; in the second stage of the ith frame, the touch driving signal is input to the touch electrode, and the touch sensing signal fed back by the touch electrode is received to identify the touch position; according to the first frame Determining whether the touch position is recognized by the i-th frame If the preset gesture is detected, the preset gesture is entered into the palmprint recognition stage, and if the preset gesture is not detected, the i+1th frame scan in the touch display phase is performed, where i is greater than or equal to An integer of 1;
  • performing one frame of scanning comprises: inputting a scan signal to the first scan line row by row in the first stage of the frame, so as to open the display unit line by line and open to the data line
  • the display unit inputs the same data signal, wherein in the first stage, the data signals input by the data lines are all the same and are bright picture signals; in the second stage of the frame, under the control of the control voltage end, through the palm print
  • the recognition unit collects a palm print signal, and inputs a scan signal to the second scan line row by row, so that the palm print recognition unit connected to the second scan line of the current input scan signal outputs the collected palm print signal to the Read the signal line.
  • An embodiment of the present invention provides an array substrate and a driving method thereof, a display panel, and a display device.
  • a data signal is input to the display unit through a data line, so that normal image display can be realized.
  • setting the touch electrode such that the array substrate further has a touch function.
  • the palm print signal is collected by the palm print recognition unit to realize palm print recognition. Therefore, when the array substrate according to the embodiment of the present invention is applied to a display device, the display device not only has a touch display function, but also has a palm print recognition function, and realizes palm print recognition by adding an independent palm print recognition device.
  • the structure of the present invention is simpler in comparison with conventional techniques.
  • FIG. 1 is a schematic structural view 1 of an array substrate according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view 2 of an array substrate according to an embodiment of the present invention.
  • Figure 3 is a schematic view showing a specific structure of each unit of Figure 1;
  • FIG. 4 is a schematic structural diagram 1 of another unit in another array substrate according to an embodiment of the present invention.
  • FIG. 5 shows a specific junction of each unit in an array substrate according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of a method for driving an array substrate according to an embodiment of the present invention.
  • Figure 8a shows the implementation of step S01 in Figure 7;
  • Figure 8b shows an implementation of step S02 in Figure 7
  • FIG. 9 is a timing diagram of a scan signal during operation of a display unit, a palm print recognition unit, and a touch electrode according to an embodiment of the present invention.
  • FIG. 1 and FIG. 2 respectively show a schematic structural diagram 1 and a structural schematic diagram 2 of an array substrate according to an embodiment of the present invention.
  • the array substrate includes a plurality of repeating units 01, each of which includes a plurality of sub-pixels, each of which is provided with a display unit 30, wherein one of the sub-pixels is provided with a palm print recognition unit 40.
  • the array substrate further includes a touch electrode 20 (shaded portions in FIGS. 1 and 2), and the touch electrode 20 is connected to the touch electrode line TX.
  • the sub-pixel including the palm print recognition unit 40 is referred to as a first sub-pixel 10, and the remaining sub-pixels (including the display unit 30 but not the sub-pixel of the palm print recognition unit 40) It is called the second sub-pixel 11.
  • FIGS. 1 and 2 respectively. structure.
  • the display unit 30 is connected to the first scan line Scan1 and the data line DL for turning on or off the display unit 30 under the control of the first scan line Scan1, and is turned on when the display unit is turned on.
  • the data line DL inputs a data signal.
  • each row of the display unit 30 is connected to one first scanning line Scan1, and each column of the display unit 30 is connected to one data line DL.
  • the palm print recognition unit 40 is connected to the second scan line Scan2, the control voltage terminal V1 and the read signal line RL for collecting the palmprint signal under the control of the control voltage terminal V1, and in the second The collected palm print signal is output to the read signal line RL under the control of the scan line Scan2.
  • the palm print identifying unit 40 located in the same row is connected to a second scan line Scan2, and the palm print identifying unit 40 located in the same column is connected to a read signal line RL.
  • control voltage terminals V1 connected to each of the palmprint identifying units 40 in the row are connected by a connecting line.
  • the connection line is used to provide a control signal for the control voltage terminal V1.
  • the above palm print information is related to the valley line and the ridge line of the palm palm print.
  • the specific structure of the touch electrode 20 is not limited, as long as the touch function can be implemented.
  • one of each repeating unit 01 can be selected according to the distance between the ridge line of the palm palm to the adjacent ridge line, the distance from the valley line to the adjacent valley line, and the size of the sub-pixel. The number of second sub-pixels 11 outside the sub-pixel 10.
  • An embodiment of the present invention provides an array substrate. Under the control of the first scan line Scan1, a data signal is input to the display unit 30 through the data line DL, so that a normal image display function can be realized; Touching the electrode so that the array substrate further has a touch function; on the basis of the control voltage terminal V1 and the second scan line Scan2, the palm print recognition unit 40 controls the palm print Signal acquisition, can also achieve the purpose of palmprint recognition.
  • the display device not only has a touch display function, but also has a palm print recognition function, and a conventional technology for implementing palm print recognition by adding an independent palm print recognition device. In comparison, the structure of the present invention is simpler.
  • FIG. 2 is a schematic structural diagram 2 of an array substrate according to an embodiment of the present invention.
  • the touch electrode lines TX is shared with the corresponding read signal line RL.
  • the first touch electrode line TX may share one line with the first read signal line RL
  • the third touch electrode line TX may share one with the third read signal line RL.
  • the line, the fifth touch electrode line TX may share a line with the fifth read signal line RL, and the like.
  • the setting can be made according to the actual situation, and is not limited herein. This can further reduce the number of wirings and increase the aperture ratio.
  • the small black dot on the touch electrode line TX in FIG. 2 represents that the touch electrode 20 and the touch electrode line TX are connected through the via.
  • FIG. 3 is a schematic view showing a specific structure of the array substrate of FIG. 1.
  • the display unit 30 includes a first transistor T1 and a pixel electrode 301.
  • the gate of the first transistor T1 is connected to the first scan line Scan1, the first electrode is connected to the data line DL, and the second electrode is connected to the pixel electrode 301.
  • the common electrode 302 may be disposed on the array substrate or on the counter substrate, which is not limited herein.
  • the pixel electrode 301 and the common electrode 302 constitute a first capacitor C1, and the common electrode 302 is connected to the common voltage terminal Vcom.
  • the common electrode 302 may be disposed on the array substrate, that is, the display unit 30 may further include a common electrode 302.
  • the palm print recognition unit 40 includes a second transistor T2 and a third transistor T3, and the second transistor T2 is a photo transistor.
  • the gate and the first pole of the second transistor T2 are both connected to the control voltage terminal V1, and the second pole is connected to the first pole of the third transistor T3.
  • the gate of the third transistor T3 is connected to the second scan line Scan2, and the second electrode is connected to the read signal line RL.
  • control voltage terminals V1 connected to the palm print recognition unit 40 in the row are connected by a signal line SL.
  • the signal line SL is used to provide a control signal for the control voltage terminal V1.
  • the palm print recognition unit 40 may adopt another structure as shown in FIG. 4 or FIG. .
  • FIG. 4 is a schematic view showing another specific structure of an array substrate according to an embodiment of the present invention.
  • the palm print recognition unit 40 includes a fourth transistor T4, which is a photo transistor.
  • the gate of the fourth transistor T4 is connected to the second scan line Scan2.
  • the first pole is connected to the control voltage terminal V1, and the second pole is connected to the read signal line RL.
  • control voltage terminal V1 connected to the palm print recognition unit 40 in the row is connected by a signal line SL.
  • the signal line SL is used to provide a control signal for the control voltage terminal V1.
  • FIG. 5 is a schematic view showing another specific structure of an array substrate according to an embodiment of the present invention.
  • the palm print recognition unit 40 includes a fifth transistor T5, which is a photo transistor.
  • the gate of the fifth transistor T5 is connected to the second scan line Scan2, the first pole is connected to the control voltage terminal V1, and the second pole is connected to the read signal line RL.
  • control voltage terminal V1 connected to the palm print recognition unit 40 in the row is connected to the second scan line Scan2.
  • the principle of the palmprint recognition unit 40 for palmprint recognition is: using the principle of light refraction and reflection, when the palm touches the surface of the screen, the light source is irradiated to the valley line and the ridge line of the palm palm, due to the valley. The angle of refraction of the line and the ridge line and the intensity of the light reflected back are different. Projecting it on the phototransistor generates different currents. When the reading signal line RL is input to the corresponding reading device, the palmprint can be recognized. Valley lines and ridges.
  • the ridge line of the palm print is more easily contacted with the screen, so that when the light source is irradiated onto the ridge line of the palm palm print, the total reflection of the surface is destroyed, so that the intensity of the reflected light is weakened.
  • the light source hits the valley line of the palm of the hand, the light is totally reflected back.
  • the embodiment of the present invention preferably includes only one of the first sub-pixels 10 in each pixel unit. Based on this, the pixel unit may include two second sub-pixels 11.
  • the first sub-pixel 10 is preferably a blue sub-pixel, that is, in each pixel unit.
  • the blue sub-pixel includes the palm print recognition unit 40 and the display unit 30, and the red sub-pixel and the green sub-pixel include the display unit 30 but does not include the palm print recognition unit 40.
  • the red sub-pixel, the green sub-pixel, and the blue sub- The pixel does not have to have a red filter layer, a green filter layer, and a blue filter layer in the corresponding sub-pixels of the array substrate, as long as the red sub-pixel includes or corresponds to the red filter layer in the finally formed display device.
  • the green sub-pixel includes or corresponds to a green filter layer
  • the blue sub-pixel includes or corresponds to a blue filter layer. That is, the red filter layer may be located in a sub-pixel of the array substrate, or may be located at a position corresponding to the sub-pixel of the color filter substrate; the same applies to the other filter layer.
  • all transistors may be N-type transistors or P-type transistors.
  • the embodiments of the present invention are all described by using a transistor as an N-type.
  • all of the transistors in the embodiment of the invention are low temperature polysilicon thin film transistors.
  • the present invention does not limit the first pole and the second pole of the transistor, the first pole may be the source, the second pole may be the drain; or the first pole may be the drain, and the second pole may be the source .
  • the embodiment of the invention further provides a display panel comprising the above array substrate, and further comprising a counter substrate and a liquid crystal layer between the array substrate and the pair of cassette substrates.
  • an embodiment of the present invention further provides a display device including the above display panel and a signal receiving device 02 (shown in FIG. 6) connected to the read signal line RL, wherein the signal receiving device 02 is used for Receiving a palm print signal output by the read signal line RL to identify palm print information according to the palm print signal.
  • the signal receiving device 02 can respectively read the signal lines, for example, the first read signal line RL1 and the second read signal line RL2 in FIG. 6, respectively, with the palm print in the first sub-pixel 10 of the first column.
  • the recognition unit 40 is connected to the palm print recognition unit 40 in the first sub-pixel 10 of the second column. The specific receiving process of the signal receiving device 02 will be described below.
  • the signal receiving device 02 may include, for example, a plurality of amplifiers and a plurality of differentiators; an input end of each of the amplifiers is connected to one of the read signal lines RL; and an input end of each of the differentiators is connected to two At the output of the amplifier, the inputs of the two amplifiers are connected to any two adjacent read signal lines RL, and the output of the difference is used to output a difference signal.
  • the photo transistor When the palm is in contact with the screen, the photo transistor receives a change in illumination intensity, and the generated current is output to the amplifier of the signal receiving device 02 through the read signal line RL for amplification, and the signals output by the adjacent two read signal lines RL After amplification by the amplifier, input the input of the same differentiator. In this way, if the difference device outputs the first difference, and the first difference is a positive value, it can be determined that one of the read signal lines RL is collected by the valley line, and the other read signal line RL is collected.
  • the difference device outputs the second difference, it can be judged that the two read signal lines RL are all valley lines or ridge lines, on the basis of
  • the two read signal lines RL are also respectively amplified by an amplifier and connected to the input end of the same differentiator by the amplifier, so that the two read signal lines can be judged by combining the results here.
  • the RL collects the valley line or the ridge line.
  • the gray level of the gray level can be delineated, and the valley line or the ridge line of the corresponding gray level is displayed on the screen, which is not limited herein.
  • the plurality of read signal lines can be connected to the periphery.
  • the signals obtained by the RL are separately compared, and may be set according to actual conditions, and details are not described herein again.
  • the palm print information generally includes main lines, wrinkles, mastoid lines, detail points, and triangular points.
  • the main line is the strongest and thickest lines on the palm, most of the palms have three main lines, which can be called lifeline, emotional line and wisdom line; wrinkles are generally thinner and lighter than the main line, and very Regular; the palm is covered with the same mastoid pattern as the fingerprint; the triangular point is the central point of the triangular region formed by the mastoid on the palm of the hand. These triangular regions are located below the finger root and below the middle finger near the wrist.
  • the above palm print information can be expressed through the valley line and the ridge line. Based on this, after the palm print information is recognized by the display device of the present invention, the palm print information described above can be extracted and then matched with the master information stored in the database to obtain a recognition result.
  • the embodiment of the present invention further provides a driving method for the above array substrate.
  • the driving method may include:
  • Step S01 a touch display stage in which a cyclic scan of at least one frame is performed until a preset gesture is detected;
  • Step S02 a palmprint recognition stage in which scanning of one frame is performed to obtain palm print information.
  • step S01 may include:
  • Step S011 in the first stage of the ith frame, inputting a scan signal to the first scan line Scan1 row by row to turn on the display unit 30 row by row, and input a data signal to the open display unit 30 through the data line DL;
  • Step S011 in the first stage of the ith frame, inputting a scan signal to the first scan line Scan1 row by row to turn on the display unit 30 row by row, and input a data signal to the open display unit 30 through the data line DL;
  • Step S011 in the first stage of the ith frame, inputting a scan signal to the first scan line Scan1 row by row to turn on the display unit 30 row by row, and input a data signal to the open display unit 30 through the data line DL;
  • Step S011 in the first stage of the ith frame, inputting a scan signal to the first scan line Scan1 row by row to turn on the display unit 30 row by row, and input a data signal to the open display unit 30 through the data line DL;
  • Step S012 determining whether the preset gesture is detected according to the touch position identified by the first frame to the i-th frame, and if the preset gesture is detected, entering a palmprint recognition stage, if no preset is detected The gesture is performed, and the i+1th frame scan in the touch display stage is performed; wherein i is an integer greater than or equal to 1.
  • step S02 may include:
  • Step S021 in the first stage of the frame, inputting a scan signal to the first scan line Scan1 row by row to turn on the display unit 30 row by row, and input the same data signal to the open display unit 30 through the data line DL;
  • the data signals input by the data line DL are all the same and are bright picture signals.
  • the bright picture signal may be a white picture signal, a red picture signal, a green picture signal, a blue picture signal, etc., which is a brighter picture for the human eye.
  • Step S022 in the second stage of the frame, under the control of the control voltage terminal V1, the palm print signal is collected by the palm print recognition unit 40, and the scan signal is input to the second scan line Scan2 line by line, so that The palm print recognition unit 40 connected to the second scan line Scan2 of the current input scan signal outputs the collected palm print signal to the read signal line RL.
  • a cyclic scan of at least one frame is performed until a preset gesture is detected, and the loop is terminated.
  • the scan signal is input to the first scan line Scan1 row by row, and the first transistor T1 connected to the first scan line Scan1 of the current input scan signal is in an on state.
  • the signal input to the data line DL charges one end of the first capacitor C1 connected to the pixel electrode, thereby generating a voltage difference between the one end and the other end connected to the common electrode to drive when the array substrate is applied to the display device
  • the liquid crystal is deflected to perform display.
  • a touch driving signal is input to the touch electrode line TX connected to the touch electrode 20, and a self-capacitance (Cp) is formed between the touch electrode 20 and the ground. Due to the electric field of the human body, when the palm is in contact with the screen, the capacitance of the palm will be superimposed on the above self. The capacitance is changed to change the size of the self-inductance capacitor to determine the touch position.
  • the palmprint recognition phase is entered.
  • the preset gesture can be, for example, an index finger touch.
  • the scan signal is input to the first scan line Scan1 row by row, and the first transistor T1 connected to the first scan line Scan1 of the current input scan signal is in an on state, and is input to the data line DL.
  • Grayscale data signal At this stage, the signals input by the data line DL are all the same. Thus, when the last scan line Scan1 of the last line is scanned, the display of one frame of white screen can be completed.
  • the scan signal is input to the second scan line Scan2 row by row, and the third transistor T3 connected to the second scan line Scan2 of the current input scan signal is in an on state.
  • the signal line SL inputs the control signal row by row, and when the palm touches the screen, under the control of the control voltage terminal V1 connected to the signal line SL of the current input control signal, if the third transistor T3 is in the on state.
  • the connected second transistor T2 phototransistor
  • receives the light reflected by the ridge line the light intensity is relatively weak, and the current generated is relatively small.
  • the second transistor T2 (phototransistor) receives the light reflected by the valley line, the light intensity is relatively strong, and the current generated is relatively large.
  • the above current is output to the read signal line RL via the third transistor T3 in an on state.
  • the signal line SL can be connected, for example, to a pin of an IC (Integrated Circuit) on the circuit board.
  • the pin can provide a fixed voltage signal to the signal line SL, and can also provide a pulse signal, which can be set according to actual conditions.
  • the phototransistor can be made to change the current when the illumination intensity changes under the control of the control voltage terminal V1 connected to the signal line SL.
  • the palm print recognition unit 40 completes the acquisition of the palm print signal.
  • the palm print signal is related to the valley line and ridge line of the palm print.
  • the collected palmprint signal corresponds to the ridge line of the palmprint
  • the collected palm The grain signal corresponds to the valley line of the palm print.
  • the second scanning signal line Scan2 corresponds to the palm print information (valley line or ridge line)
  • the abscissa of the first sub-pixel 10 is the ordinate of the first sub-pixel 10 corresponding to the finger palm information (valley line or ridge line). It can be determined by the above coordinates that the palm print information corresponds to a specific position of the screen. Thereby, the palm print information matching the specific position can be displayed on the screen to achieve the purpose of palmprint recognition.

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Abstract

一种阵列基板，包括：多个重复单元（01），每个重复单元（01）包括多个子像素，每个子像素均设置有显示单元（30），其中一个子像素设置有掌纹识别单元（40），显示单元（30）与第一扫描线（Scan1）和数据线（DL）相连，用于在第一扫描线（Scan1）的控制下开启或关闭显示单元（30），并在开启时由数据线（DL）输入数据信号；触控电极（20），触控电极（20）与触控电极线（TX）相连以提供触控位置；其中，掌纹识别单元（40）与第二扫描线（Scan2）、控制电压端（V1）和读取信号线（RL）相连，用于在控制电压端（V1）的控制下，根据触控单元提供的触控位置采集掌纹信号，并在第二扫描线（Scan2）的控制下将采集到的掌纹信号输出至读取信号线（RL）。也提供了阵列基板的驱动方法及包含阵列基板的显示面板、显示装置。

Description

一种阵列基板及其驱动方法、显示面板、显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种阵列基板及其驱动方法、显示面板、显示装置。
背景技术
液晶显示器(Liquid Crystal Display，简称LCD)具有低辐射、体积小及低耗能等优点，被广泛地应用在平板电脑、电视或手机等电子产品中。同时，掌纹识别技术对于增强电子设备的安全性、扩展电子设备的应用范围等均有重要意义。
然而目前的液晶显示器大多不具备掌纹识别功能，或者通过外加独立的掌纹识别电路以达到掌纹识别的目的，这样会使得结构复杂。
发明内容
本发明的实施例提供一种阵列基板及其驱动方法、显示面板、显示装置，使该显示装置具备掌纹识别功能，且结构简单。
根据本发明实施例的一方面，提供了一种阵列基板，包括：
多个重复单元，每个重复单元包括多个子像素，每个子像素均设置有显示单元，其中一个子像素设置有掌纹识别单元，所述显示单元与第一扫描线和数据线相连，用于在所述第一扫描线的控制下开启或关闭相应所述显示单元，并在开启时由所述数据线输入数据信号；
触控电极，所述触控电极与触控电极线相连，用于识别触控位置；
其中，所述掌纹识别单元与第二扫描线、控制电压端和读取信号线相连，用于在所述控制电压端的控制下，根据触控电极识别的触控位置采集掌纹信号，并在所述第二扫描线的控制下，将采集到的掌纹信号输出至所述读取信号线。
可选的，所述显示单元包括第一晶体管和像素电极；所述第一晶体管的栅极与所述第一扫描线相连，第一极与所述数据线相连，第二极与所述像素电极相连。
可选的，所述掌纹识别单元包括第二晶体管和第三晶体管，所述第二晶体管为光敏晶体管；所述第二晶体管的栅极和第一极均与所述控制电压端相连，第二极与所述第三晶体管的第一极相连；所述第三晶体管的栅极与所述第二扫描线相连，第二极与所述读取信号线相连。
可选的，所述掌纹识别单元包括第四晶体管，所述第四晶体管为光敏晶体管；所述四晶体管的栅极与所述第二扫描线相连，第一极与所述控制电压端相连，第二极与所述读取信号线相连。
可选的，所述掌纹识别单元包括第五晶体管，所述第五晶体管为光敏晶体管；所述第五晶体管的栅极与所述第二扫描线相连，第一极与所述控制电压端相连，第二极与所述读取信号线相连；其中，对于任一行所述掌纹识别单元，与该行中的掌纹识别单元相连的控制电压端与所述第二扫描线相连。
优选的，所述掌纹识别单元设置于蓝色子像素中。
优选的，触控电极线中的至少一个与相应读取信号线是分时共用的。
根据本发明实施例的另一方面，提供了一种显示面板，包括上述阵列基板。
根据本发明实施例的再一方面，提供了一种显示装置，包括上述的显示面板以及与读取信号线相连接的信号接收装置；所述信号接收装置用于接收所述读取信号线输出的掌纹信号，以根据所述掌纹信号识别掌纹信息。
根据本发明实施例的又一方面，提供了一种上述阵列基板的驱动方法，包括：
触控显示阶段，进行至少一帧的循环扫描直到检测到预设手势为止；以及
所述掌纹识别阶段，进行一帧的扫描以得到掌纹信息；
其中，所述进行至少一帧的循环扫描包括：在第i帧的第一阶段，向第一扫描线逐行输入扫描信号，以便逐行开启对应显示单元，并通过数据线向开启的所述显示单元输入数据信号；在第i帧的第二阶段，向触控电极输入触控驱动信号，并接收所述触控电极反馈的触控感应信号，以识别触控位置；根据第1帧到第i帧识别到的所述触控位置，确定是否检测到 所述预设手势，若检测到预设手势，则进入掌纹识别阶段，若未检测到预设手势，则进行所述触控显示阶段中的第i+1帧扫描，其中i是大于等于1的整数；
其中，在所述掌纹识别阶段，进行一帧的扫描包括：在该帧的第一阶段，向第一扫描线逐行输入扫描信号，以便逐行开启显示单元，并通过数据线向开启的所述显示单元输入相同数据信号，其中在该第一阶段，所述数据线输入的数据信号均相同且为亮画面信号；在该帧的第二阶段，在控制电压端的控制下，通过掌纹识别单元采集掌纹信号，并向所述第二扫描线逐行输入扫描信号，使与当前输入扫描信号的第二扫描线相连的所述掌纹识别单元将采集到的掌纹信号输出至所述读取信号线。
本发明实施例提供了一种阵列基板及其驱动方法、显示面板、显示装置，在所述第一扫描线的控制下，通过数据线向所述显示单元输入数据信号，可以实现正常的图像显示功能；并且通过设置所述触控电极，使得所述阵列基板还具有触控功能。在此基础上，在所述控制电压端和所述第二扫描线的控制下，通过所述掌纹识别单元采集掌纹信号，以实现掌纹识别。因此，当将根据本发明实施例的阵列基板应用于显示装置时，该显示装置不但具有触控显示功能，还具有掌纹识别功能，且与通过外加独立的掌纹识别设备以实现掌纹识别的传统技术相比较，本发明的结构更为简单。
附图说明
为了更清楚地说明本发明实施例或传统技术中的技术方案，下面将对实施例或传统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示出了本发明实施例提供的一种阵列基板的结构示意图一；
图2示出了本发明实施例提供的一种阵列基板的结构示意图二；
图3示出了图1中各单元的一种具体结构示意图；
图4示出了本发明实施例提供的另一种阵列基板中各单元的具体结构示意图一；
图5示出了本发明实施例提供的又一种阵列基板中各单元的具体结 构示意图二；
图6示出了本发明实施例提供的一种显示装置的结构示意图；
图7示出了本发明实施例提供的一种阵列基板的驱动方法流程图；
图8a示出了图7中步骤S01的实现方式；
图8b示出了图7中步骤S02的实现方式；
图9示出了本发明实施例提供的一种显示单元、掌纹识别单元和触控电极工作过程中扫描信号的时序图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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，都属于本发明保护的范围。
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领域技术人员所理解的通常意义。本发明专利申请说明书以及权利要求书中使用的“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”或“一”等等类似词语也不表示数量限制，而是表示存在至少一个。“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。
本发明实施例提供了一种阵列基板。图1和图2分别示出了本发明实施例提供的一种阵列基板的结构示意图一和结构示意图二。如图1和图2所示，该阵列基板包括多个重复单元01，每个重复单元01包括多个子像素，每个子像素均设置有显示单元30，其中一个子像素设置有掌纹识别单元40。所述阵列基板还包括触控电极20(图1和图2中阴影部分)，所述触控电极20与触控电极线TX相连。
本发明实施例中，为描述方便，将包括该掌纹识别单元40的子像素称为第一子像素10，将其余子像素(包括显示单元30但不包括掌纹识别单元40的子像素)称为第二子像素11。
接下来将分别参考图1和图2来描述根据本发明实施例的阵列基板的 结构。
如图1所示，显示单元30与第一扫描线Scan1和数据线DL相连，用于在所述第一扫描线Scan1的控制下开启或关闭该显示单元30，并在开启显示单元时由所述数据线DL输入数据信号。
此处，优选地，每行显示单元30与一根第一扫描线Scan1相连，每列所述显示单元30与一根数据线DL相连。
掌纹识别单元40与第二扫描线Scan2、控制电压端V1和读取信号线RL相连，用于在所述控制电压端V1的控制下，对掌纹信号进行采集，并在所述第二扫描线Scan2的控制下，将采集到的掌纹信号输出至读取信号线RL。
此处，优选地，位于同一行的掌纹识别单元40与一根第二扫描线Scan2相连，位于同一列的所述掌纹识别单元40与一根读取信号线RL相连。
此外，对于位于同一行的掌纹识别单元40，与该行中的每个掌纹识别单元40相连的控制电压端V1通过一根连接线连接在一起。所述连接线用于为所述控制电压端V1提供控制信号。由此，可减少走线数量，提高开口率。
需要说明的是，第一，上述的掌纹信息与手掌掌纹的谷线和脊线有关。第二，不对所述触控电极20的具体结构进行限定，只要能实现触控功能即可。第三，可以根据手掌掌纹的脊线到相邻脊线之间的距离，谷线到相邻谷线之间的距离以及子像素的大小，来选择每个重复单元01中除一个第一子像素10外的第二子像素11的个数。
本发明实施例提供了一种阵列基板，在所述第一扫描线Scan1的控制下，通过数据线DL向所述显示单元30输入数据信号，可以实现正常的图像显示功能；并且通过设置所述触控电极，使得所述阵列基板还具有触控功能；在此基础上，在所述控制电压端V1和所述第二扫描线Scan2的控制下，通过所述掌纹识别单元40对掌纹信号进行采集，还可以实现掌纹识别的目的。这样一来，当所述阵列基板应用于显示装置时，该显示装置不但具有触控显示功能，还具有掌纹识别功能，且与通过外加独立的掌纹识别设备以实现掌纹识别的传统技术相比较，本发明的结构更为简单。
图2示出了本发明实施例提供的一种阵列基板的结构示意图二。如图2所示，优选的，触控电极线TX中的至少一个与相应读取信号线RL是分时共用的。例如，沿从左到右的方向，第一触控电极线TX可以与第一读取信号线RL共用一根线，第三触控电极线TX可以与第三读取信号线RL共用一根线，第五触控电极线TX可以与第五读取信号线RL共用一根线等等。具体可根据实际情况进行设定，在此不做限定。由此可以进一步减少布线数量，提高开口率。此外，图2中的位于触控电极线TX上的小黑点代表触控电极20与触控电极线TX通过过孔相连。
图3示出了图1中阵列基板的一种具体结构示意图。如图3所示，显示单元30包括可以第一晶体管T1和像素电极301。第一晶体管T1的栅极与第一扫描线Scan1相连，第一极与数据线DL相连，第二极与像素电极301相连。
在此情况下，公共电极302可以设置在所述阵列基板上也可设置在对盒基板上，在此不做限定。其中，像素电极301和公共电极302构成第一电容C1，公共电极302与公共电压端Vcom相连。
优选的，公共电极302可以设置在所述阵列基板上，即，所述显示单元30还可以包括公共电极302。
如图3所示，掌纹识别单元40包括第二晶体管T2和第三晶体管T3，第二晶体管T2为光敏晶体管。第二晶体管T2的栅极和第一极均与控制电压端V1相连，第二极与所述第三晶体管T3的第一极相连。第三晶体管T3的栅极与第二扫描线Scan2相连，第二极与所述读取信号线RL相连。
其中，对于任一行掌纹识别单元40，与该行中的掌纹识别单元40相连的控制电压端V1通过一根信号线SL连接在一起。信号线SL用于为所述控制电压端V1提供控制信号。
如果与读取信号线RL相连的其他行的漏电流对当前行掌纹识别单元40的检测电流影响不大，掌纹识别单元40也可采用如图4或图5所示的另一种结构。
图4示出了根据本发明实施例的阵列基板的另一种具体结构示意图。如图4所示，掌纹识别单元40包括第四晶体管T4，所述第四晶体管T4为光敏晶体管。所述第四晶体管T4的栅极与所述第二扫描线Scan2相连， 第一极与所述控制电压端V1相连，第二极与所述读取信号线RL相连。
其中，对于任一行所述掌纹识别单元40，与该行中的掌纹识别单元40相连的控制电压端V1通过一根信号线SL连接在一起。所述信号线SL用于为所述控制电压端V1提供控制信号。
图5示出了根据本发明实施例的阵列基板的另一种具体结构示意图。如图5所示，所述掌纹识别单元40包括第五晶体管T5，所述第五晶体管T5为光敏晶体管。所述第五晶体管T5的栅极与所述第二扫描线Scan2相连，第一极与所述控制电压端V1相连，第二极与所述读取信号线RL相连。
其中，对于任一行所述掌纹识别单元40，与该行中的掌纹识别单元40相连的控制电压端V1与所述第二扫描线Scan2相连。
本发明实施例中，掌纹识别单元40进行掌纹识别的原理为：利用光的折射和反射原理，当手掌接触屏幕表面时，光源照射到手掌掌纹的谷线和脊线上，由于谷线和脊线折射的角度及反射回去的光线强度不同，将其投射在光敏晶体管上会产生不同电流，当通过读取信号线RL输入到相应的读取装置后，便可识别出掌纹的谷线和脊线。其中，当手掌接触屏幕时，掌纹的脊线更容易与屏幕接触，这样，当光源照射到手掌掌纹的脊线上时，表面全反射被破坏，从而使得反射回去的光线强度变弱，当光源照射到手掌掌纹的谷线上时，光线被全反射回去。
基于上述，考虑到掌纹中脊线与脊线之间的间距大于100μm，谷线与谷线之间的间距大于脊线与脊线之间的间距，而在阵列基板中像素单元的边长一般控制在50-90μm之间，因此可以看出像素单元的尺寸明显小于掌纹中谷与脊之间的间距。基于此，本发明实施例优选每个像素单元中只包含一个所述第一子像素10。在此基础上，所述像素单元可以包括两个第二子像素11。
在此基础上，考虑到红色、绿色和蓝色光中，蓝光受到外界环境影响最小，因此，本发明实施例中，优选第一子像素10为蓝色子像素，即：在每个像素单元中，蓝色子像素包括所述掌纹识别单元40和显示单元30，红色子像素和绿色子像素则包括显示单元30但不包括掌纹识别单元40。
需要说明的是，本发明实施例中，红色子像素、绿色子像素和蓝色子 像素并不一定要在阵列基板的相应子像素中有红色滤光层、绿色滤光层、蓝色滤光层，只要是最终形成的显示装置中该红色子像素包括或对应红色滤光层，绿色子像素包括或对应绿色滤光层，蓝色子像素包括或对应蓝色滤光层即可。即：所述红色滤光层可以位于阵列基板的子像素中，也可以位于彩膜基板的与该子像素对应位置处；同理适用于所述其他滤光层。
本发明实施例中，所有晶体管可以是N型晶体管，也可以是P型晶体管。本发明实施例均以晶体管为N型进行说明。考虑到低温多晶硅薄膜晶体管的漏电流较小，因此，本发明实施例优选所有晶体管为低温多晶硅薄膜晶体管。此外，本发明对晶体管的第一极、第二极不做限定，第一极可以是源极，第二极可以是漏极；或者第一极可以是漏极，第二极可以是源极。
本发明实施例还提供了一种显示面板，包括上述的阵列基板，还可以包括对盒基板以及位于所述阵列基板和所述对盒基板之间的液晶层。
进一步的，本发明实施例还提供了一种显示装置，包括上述的显示面板以及与读取信号线RL相连接的信号接收装置02(如图6所示)，所述信号接收装置02用于接收所述读取信号线RL输出的掌纹信号，以根据所述掌纹信号识别掌纹信息。
具体的，该信号接收装置02可以通过读取信号线，例如图6中的第一读取信号线RL1和第二读取信号线RL2，分别与第一列第一子像素10内的掌纹识别单元40和第二列第一子像素10内的掌纹识别单元40连接。以下对信号接收装置02具体的接收过程进行说明。
信号接收装置02例如可以包括：多个放大器和多个差分器；每个所述放大器的输入端与一根所述读取信号线RL相连；每个所述差分器的输入端连接两个所述放大器的输出端，该两个所述放大器的输入端连接任意相邻的两根读取信号线RL，所述差分器的输出端用于输出差值信号。
当手掌与屏幕接触时，光敏晶体管接收到光照强度变化，其产生的电流通过读取信号线RL输出至所述信号接收装置02的放大器进行放大，相邻两根读取信号线RL输出的信号经放大器放大后输入同一个差分器的输入端。这样，若差分器输出第一差值，且该第一差值为正值，则可以判断其中一根读取信号线RL采集到的是谷线，另一根读取信号线RL采集 到的是脊线，若为负值则相反；若差分器输出第二差值，则可以判断两根读取信号线RL采集的均为谷线或均为脊线，在此基础上，由于该两根读取信号线RL还分别和其相邻的读取信号线RL经放大器放大后与同一个差分器的输入端相连，因此，结合此处结果则可以判断上述两根读取信号线RL采集到的是谷线或是脊线。
其中，还可以根据差分器输出的值，划定其所属的灰阶等级，并由此在屏幕上显示相应灰阶的谷线或脊线，具体在此不做限定。
基于上述，为了使识别的准确率更高，不限于仅仅采用相邻两根读取信号线RL获取的信号进行比较，对于任一根读取信号线RL，可以和周边多个读取信号线RL获取的信号分别进行比较，具体可根据实际情况进行设定，在此不再赘述。
需要说明的是，手掌掌纹信息一般包括主线、皱褶、乳突纹、细节点和三角点等。其中，主线是手掌上最强最粗的几条线，大多数手掌上有三条主线，分别可以称为生命线、感情线和智慧线；皱褶一般来说会比主线细且浅，并且很不规律；掌部布满了和指纹一样的乳突纹；三角点是乳突纹在手掌上形成的三角区域的中心点，这些三角区域位于指根的下面以及中指下方靠近手腕的位置。
上述掌纹信息均可通过谷线和脊线体现出来。基于此，当通过本发明的显示装置识别到掌纹信息后，可以提取上述的各掌纹信息，然后与数据库中存储的掌握信息进行匹配，从而得到识别结果。
本发明实施例还提供了一种上述阵列基板的驱动方法，如图7所示，该驱动方法可以包括：
步骤S01，触控显示阶段，其中进行至少一帧的循环扫描直到检测到预设手势为止；以及
步骤S02，掌纹识别阶段，其中进行一帧的扫描以得到掌纹信息。
具体的，如图8a所示，步骤S01可以包括：
步骤S011，在第i帧的第一阶段，向第一扫描线Scan1逐行输入扫描信号，以便逐行开启显示单元30，并通过数据线DL向开启的所述显示单元30输入数据信号；在第i帧的第二阶段，向触控电极20输入触控驱动 信号，并接收所述触控电极20反馈的触控感应信号，以识别触控位置。
步骤S012，根据第1帧到第i帧识别到的所述触控位置，确定是否检测到所述预设手势，若检测到预设手势，则进入掌纹识别阶段，若未检测到预设手势，则进行所述触控显示阶段中的第i+1帧扫描；其中i是大于等于1的整数。
具体的，如图8b所示，步骤S02可以包括：
步骤S021，在该帧的第一阶段，向第一扫描线Scan1逐行输入扫描信号，以便逐行开启显示单元30，并通过数据线DL向开启的所述显示单元30输入相同数据信号；其中在该第一阶段，所述数据线DL输入的数据信号均相同且为亮画面信号。
此处，亮画面信号可以为白画面信号、红画面信号、绿画面信号、蓝画面信号等，对于人眼来说较亮的画面。
步骤S022，在该帧的第二阶段，在控制电压端V1的控制下，通过掌纹识别单元40对掌纹信号进行采集，并向所述第二扫描线Scan2逐行输入扫描信号，使与当前输入扫描信号的第二扫描线Scan2相连的所述掌纹识别单元40将采集到的掌纹信号输出至所述读取信号线RL。
下面将结合图3和图9，对所述阵列基板中的显示单元30、掌纹识别单元40和触控电极20的工作过程进行说明，其中，以所有晶体管均为N型晶体管且结合如图9所示的时序图为例进行说明。
首先，在触控显示阶段，进行至少一帧的循环扫描直到检测到预设手势，则循环终止。具体的，在触控显示阶段的每帧的第一阶段，向第一扫描线Scan1逐行输入扫描信号，与当前输入扫描信号的第一扫描线Scan1相连的第一晶体管T1处于导通状态，向数据线DL输入的信号对第一电容C1与像素电极相连的一端充电，从而在该一端与连接到公共电极的另一端之间产生电压差，以在所述阵列基板应用于显示装置时驱动液晶偏转，从而进行显示。这样，当最后一行第一扫描线Scan1扫描完后，便可以完成一帧画面的显示。
在触控显示阶段的每帧的第二阶段，向与触控电极20相连的触控电极线TX输入触控驱动信号，触控电极20与地之间形成自电容(Cp)。由于人体的电场作用，当手掌与屏幕接触时，手掌的电容会叠加到上述自 电容上，从而改变所述自感电容的大小，以此确定触控位置。
当上述至少一帧的循环扫描完后，根据识别到的所述触控位置，确定检测到所述预设手势，则进入掌纹识别阶段。其中，到预设手势例如可以是划指触控。
在掌纹识别阶段的第一阶段，向第一扫描线Scan1逐行输入扫描信号，与当前输入扫描信号的第一扫描线Scan1相连的第一晶体管T1处于导通状态，向数据线DL输入同灰阶数据信号。在该阶段，所述数据线DL输入的信号均相同。这样，当最后一行第一扫描线Scan1扫描完后，便可以完成一帧白画面的显示。
在掌纹识别阶段的第二阶段，向第二扫描线Scan2逐行输入扫描信号，与当前输入扫描信号的第二扫描线Scan2相连的第三晶体管T3处于导通状态。与此同时，信号线SL逐行输入控制信号，当手掌接触屏幕时，在与当前输入控制信号的信号线SL相连的控制电压端V1的控制下，若与处于导通状态的第三晶体管T3相连的第二晶体管T2(光敏晶体管)接收到经脊线反射的光照时，光线强度相对较弱，其产生的电流相对较小。若第二晶体管T2(光敏晶体管)接收到经谷线反射的光照时，光线强度相对较强，其产生的电流相对较大。上述电流经处于导通状态的所述第三晶体管T3输出至所述读取信号线RL。
此处，信号线SL例如可以与电路板上的IC(集成电路)的一个引脚相连，该引脚可以给信号线SL提供固定电压信号，也可以提供脉冲信号，具体可根据实际情况进行设定，只要通过其提供的信号，能使光敏晶体管在与该信号线SL相连的控制电压端V1的控制下，在光照强度发生变化时能体现出电流变化即可。
这样，当最后一行第二扫描线Scan2扫描完之后，掌纹识别单元40便完成了对掌纹信号的采集。该掌纹信号与掌纹的谷线和脊线有关。当第二晶体管T2的第二极输出的电流相对较小时，采集到的掌纹信号对应掌纹的脊线，当第二晶体管T2的第二极输出的电流相对较大时，采集到的掌纹信号对应掌纹的谷线。在此基础上，根据输出的相应信号，经过处理后，便可得到掌纹信息(即掌纹的谷线或脊线)。
其中，第二扫描信号线Scan2为上述掌纹信息(谷线或脊线)对应的 第一子像素10的横坐标，读取信号线RL为上述指掌纹信息(谷线或脊线)对应的第一子像素10的纵坐标。通过上述坐标可以确定出该掌纹信息对应于屏幕的具体位置。从而可以在屏幕上显示与该具体位置匹配的掌纹信息，以达到掌纹识别的目的。
以上所述仅为本发明的具体实施方式，但本发明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发明公开的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (10)

  1. 一种阵列基板，包括：
    多个重复单元，每个所述重复单元包括多个子像素，每个子像素均设置有显示单元，其中一个子像素设置有掌纹识别单元，所述显示单元与第一扫描线和数据线相连，用于在所述第一扫描线的控制下开启或关闭相应所述显示单元，并在开启时由所述数据线输入数据信号；
    触控电极，所述触控电极与触控电极线相连，用于识别触控位置；
    其中，所述掌纹识别单元与第二扫描线、控制电压端和读取信号线相连，用于在所述控制电压端的控制下，根据触控电极识别的触控位置采集掌纹信号，并在所述第二扫描线的控制下，将采集到的掌纹信号输出至所述读取信号线。
  2. 根据权利要求1所述的阵列基板，其特征在于，所述显示单元包括第一晶体管和像素电极，所述第一晶体管的栅极与所述第一扫描线相连，第一极与所述数据线相连，第二极与所述像素电极相连。
  3. 根据权利要求1所述的阵列基板，其特征在于，所述掌纹识别单元包括第二晶体管和第三晶体管，所述第二晶体管为光敏晶体管；
    所述第二晶体管的栅极和第一极均与所述控制电压端相连，第二极与所述第三晶体管的第一极相连；
    所述第三晶体管的栅极与所述第二扫描线相连，第二极与所述读取信号线相连。
  4. 根据权利要求1所述的阵列基板，其特征在于，所述掌纹识别单元包括第四晶体管，所述第四晶体管为光敏晶体管；
    所述第四晶体管的栅极与所述第二扫描线相连，第一极与所述控制电压端相连，第二极与所述读取信号线相连。
  5. 根据权利要求1所述的阵列基板，其特征在于，所述掌纹识别单元包括第五晶体管，所述第五晶体管为光敏晶体管；
    所述第五晶体管的栅极与所述第二扫描线相连，第一极与所述控制电压端相连，第二极与所述读取信号线相连；
    其中，对于任一行所述掌纹识别单元，与该行中的掌纹识别单元相连的 控制电压端与所述第二扫描线相连。
  6. 根据权利要求1所述的阵列基板，其特征在于，所述掌纹识别单元设置于蓝色子像素中。
  7. 根据权利要求1所述的阵列基板，其特征在于，触控电极线中的至少一个与相应读取信号线是分时共用的。
  8. 一种显示面板，包括权利要求1-7任一项所述的阵列基板。
  9. 一种显示装置，包括权利要求8所述的显示面板以及与读取信号线相连接的信号接收装置；
    所述信号接收装置用于接收所述读取信号线输出的掌纹信号，以根据所述掌纹信号识别掌纹信息。
  10. 一种如权利要求1-7任一项所述阵列基板的驱动方法，包括：
    触控显示阶段，其中进行至少一帧的循环扫描直到检测到预设手势为止；以及
    掌纹识别阶段，进行一帧的扫描以得到掌纹信息；
    其中，所述进行至少一帧的循环扫描包括：在第i帧的第一阶段，向第一扫描线逐行输入扫描信号，以便逐行开启对应显示单元，并通过数据线向开启的所述显示单元输入数据信号；在第i帧的第二阶段，向触控电极输入触控驱动信号，并接收所述触控电极反馈的触控感应信号，以识别触控位置；根据第1帧到第i帧识别到的所述触控位置，确定是否检测到所述预设手势，若检测到预设手势，则进入掌纹识别阶段，若未检测到预设手势，则进行所述触控显示阶段中的第i+1帧扫描，其中i是大于等于1的整数；
    其中，在所述掌纹识别阶段，进行一帧的扫描包括：在该帧的第一阶段，向第一扫描线逐行输入扫描信号，以便逐行开启显示单元，并通过数据线向开启的所述显示单元输入相同数据信号，其中在该第一阶段，所述数据线输入的数据信号均相同且为亮画面信号；在该帧的第二阶段，在控制电压端的控制下，通过掌纹识别单元对掌纹信号进行采集，并向所述第二扫描线逐行输入扫描信号，使与当前输入扫描信号的第二扫描线相连的所述掌纹识别单元将采集到的掌纹信号输出至所述读取信号线。
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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113052154A (zh) * 2019-12-26 2021-06-29 京东方科技集团股份有限公司 皮肤纹理数据的采集装置及其采集方法和显示装置
CN105093611B (zh) * 2015-07-21 2018-09-11 京东方科技集团股份有限公司 一种阵列基板及其驱动方法、显示面板、显示装置
CN106355136B (zh) * 2016-07-11 2018-07-17 京东方科技集团股份有限公司 一种指纹识别显示装置、其制作方法及驱动方法
CN106537313B (zh) * 2016-09-27 2019-07-09 京东方科技集团股份有限公司 阵列基板及其驱动方法、显示面板和显示设备
CN108614983A (zh) * 2016-12-09 2018-10-02 上海箩箕技术有限公司 显示模组及其使用方法
KR102483347B1 (ko) * 2016-12-12 2023-01-02 엘지디스플레이 주식회사 터치 표시 장치, 터치 센싱 시스템 및 터치 센싱 방법
CN106815573B (zh) * 2017-01-06 2019-11-19 武汉华星光电技术有限公司 显示屏及电子装置
CN107817926B (zh) * 2017-10-27 2021-03-23 北京京东方显示技术有限公司 一种阵列基板、液晶显示面板及显示装置
CN109062427A (zh) * 2018-06-28 2018-12-21 信利光电股份有限公司 一种指纹识别触摸显示装置及指纹识别方法
US11380126B1 (en) * 2021-02-04 2022-07-05 Himax Technologies Limited Display device with embedded biometric detection function in active region

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050139751A1 (en) * 2003-12-26 2005-06-30 Samsung Electronics Co., Ltd Light sensing panel, and liquid crystal display apparatus having the same
CN101714043A (zh) * 2008-10-02 2010-05-26 株式会社半导体能源研究所 触摸屏及触摸屏的驱动方法
CN103838046A (zh) * 2012-11-20 2014-06-04 剑扬股份有限公司 具有光感应输入的显示驱动电路
CN203930275U (zh) * 2014-03-07 2014-11-05 敦泰科技有限公司 显示装置及其驱动电路、电子设备
CN104155785A (zh) * 2014-08-07 2014-11-19 京东方科技集团股份有限公司 阵列基板及其驱动方法、显示装置
CN105093611A (zh) * 2015-07-21 2015-11-25 京东方科技集团股份有限公司 一种阵列基板及其驱动方法、显示面板、显示装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100771258B1 (ko) * 2000-05-09 2007-10-29 가부시키가이샤 한도오따이 에네루기 켄큐쇼 본인 인증 시스템과 본인 인증 방법 및 휴대 전화 장치
CN102265244B (zh) * 2008-12-24 2015-08-26 株式会社半导体能源研究所 触摸面板及其驱动方法
KR101727469B1 (ko) * 2009-11-06 2017-04-17 가부시키가이샤 한도오따이 에네루기 켄큐쇼 표시 장치
CN103019476B (zh) * 2012-06-13 2016-07-06 京东方科技集团股份有限公司 触摸显示装置及其制作方法、显示器件
US9817520B2 (en) * 2013-05-20 2017-11-14 Semiconductor Energy Laboratory Co., Ltd. Imaging panel and imaging device
US9494995B2 (en) * 2013-06-03 2016-11-15 Qualcomm Incorporated Devices and methods of sensing
JP6486660B2 (ja) * 2013-11-27 2019-03-20 株式会社半導体エネルギー研究所 表示装置
CN104200768A (zh) * 2014-08-18 2014-12-10 京东方科技集团股份有限公司 阵列基板、驱动方法和显示装置
US10203795B2 (en) * 2015-07-17 2019-02-12 Innolux Corporation Touch display panel and driving method of touch mode
CN204807869U (zh) * 2015-07-21 2015-11-25 京东方科技集团股份有限公司 一种阵列基板、显示面板、显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050139751A1 (en) * 2003-12-26 2005-06-30 Samsung Electronics Co., Ltd Light sensing panel, and liquid crystal display apparatus having the same
CN101714043A (zh) * 2008-10-02 2010-05-26 株式会社半导体能源研究所 触摸屏及触摸屏的驱动方法
CN103838046A (zh) * 2012-11-20 2014-06-04 剑扬股份有限公司 具有光感应输入的显示驱动电路
CN203930275U (zh) * 2014-03-07 2014-11-05 敦泰科技有限公司 显示装置及其驱动电路、电子设备
CN104155785A (zh) * 2014-08-07 2014-11-19 京东方科技集团股份有限公司 阵列基板及其驱动方法、显示装置
CN105093611A (zh) * 2015-07-21 2015-11-25 京东方科技集团股份有限公司 一种阵列基板及其驱动方法、显示面板、显示装置

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