WO2020042262A1 - 内嵌式面部识别显示面板、方法及液晶显示装置 - Google Patents

内嵌式面部识别显示面板、方法及液晶显示装置 Download PDF

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Publication number
WO2020042262A1
WO2020042262A1 PCT/CN2018/107649 CN2018107649W WO2020042262A1 WO 2020042262 A1 WO2020042262 A1 WO 2020042262A1 CN 2018107649 W CN2018107649 W CN 2018107649W WO 2020042262 A1 WO2020042262 A1 WO 2020042262A1
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Prior art keywords
sub
display
pixel
pixel unit
row
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Ceased
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English (en)
French (fr)
Inventor
黄耀立
贺兴龙
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US16/304,545 priority Critical patent/US11170205B2/en
Publication of WO2020042262A1 publication Critical patent/WO2020042262A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/172—Classification, e.g. identification
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/161—Detection; Localisation; Normalisation
    • G06V40/166—Detection; Localisation; Normalisation using acquisition arrangements
    • 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
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Definitions

  • the present invention relates to the technical field of display panels, and in particular, to an embedded face recognition display panel, method, and liquid crystal display device.
  • facial recognition technology With the development of facial recognition technology, major mobile phone manufacturers are laying out facial recognition. Because the existing face recognition requires a separate face recognition sensor, and the face recognition sensor needs to occupy a certain space, it is not conducive to the full screen design.
  • the face recognition function is embedded in the LCD panel, because it has the advantages of low cost of manufacturing materials, and it is more conducive to the design of a full screen.
  • a known solution for setting a facial recognition sensor is to dig a groove in the top of the screen, and place the facial recognition sensor in the groove.
  • FIG. 1 a schematic diagram of an existing display panel architecture.
  • the existing display panel is divided into a display area 11 and a non-display area 12, and a display chip 121 is provided at one end of the non-display area 12, and the display chip 121 drives the display panel to work normally.
  • the display area 11 is provided with a pixel unit (Pixel) 111, and each pixel unit 111 is composed of an R sub pixel unit (Sub Pixel R), a G sub pixel unit (Sub Pixel G), and a B sub pixel unit (Sub Pixel B). All the pixel units 111 are arrayed in the entire display area 11.
  • the existing face recognition setting method in which a face recognition sensor is placed in the grooved position by digging a groove on the top of the screen has the disadvantage that it affects the appearance and cannot achieve a true full screen.
  • the process of screen trenching design is difficult, which affects the screen production yield and low yield rate, and also increases the screen cost.
  • additional facial recognition devices also increase the cost of the whole machine.
  • the purpose of the present invention is to provide an in-cell facial recognition display panel, a method and a liquid crystal display device, which can further facilitate comprehensive screen design, improve the screen production yield, and save the cost of the entire machine.
  • the present invention provides an embedded face recognition display panel including a display area and a non-display area; a plurality of pixel units are distributed in an array in the display area, and each pixel unit is composed of R sub-pixel units, G sub-pixel unit, B sub-pixel unit and F sub-pixel unit, the F sub-pixel unit is provided with a face recognition module for collecting facial images; one end of the non-display area is provided with a display chip and a face recognition chip:
  • the display chip is respectively connected to the R subpixel unit, G subpixel unit, and B subpixel unit, and is used to drive the R subpixel unit, G subpixel unit, and B subpixel unit for panel display; the face recognition The chip is connected to the F sub-pixel unit and is used to drive the F sub-pixel unit to perform facial image acquisition.
  • the present invention also provides a panel display and face recognition method, which uses an embedded face recognition display panel.
  • the embedded face recognition display panel includes a display area and a non-display area; the display area
  • the internal array is distributed with a plurality of pixel units.
  • Each pixel unit is composed of an R sub-pixel unit, a G sub-pixel unit, a B sub-pixel unit, and an F sub-pixel unit.
  • the F sub-pixel unit is provided with a face recognition module for collecting faces.
  • a display chip and a face recognition chip are provided at one end of the non-display area: the display chip is connected to the R sub-pixel unit, G sub-pixel unit, and B sub-pixel unit, respectively, for driving the R sub-pixel Unit, G sub-pixel unit, B sub-pixel unit for panel display; the face recognition chip is connected to the F sub-pixel unit for driving the F sub-pixel unit for facial image acquisition; the method includes: the All scanning signal lines of the display panel output high levels in order to turn on all R sub-pixel units, G sub-pixel units, B sub-pixel units, and F sub-pixel units of the corresponding row.
  • the display chip inputs the display voltage of the corresponding row to the corresponding R sub-pixel unit of the corresponding row through all the first data signal lines, and inputs the corresponding row of the corresponding G sub-pixel unit to the corresponding row through all the second data signal lines.
  • the present invention also provides a liquid crystal display device, the liquid crystal display device includes an embedded face recognition display panel; the embedded face recognition display panel includes a display area and a non-display area; the display A plurality of pixel units are distributed in the array in the zone.
  • Each pixel unit is composed of R sub-pixel units, G sub-pixel units, B sub-pixel units, and F sub-pixel units.
  • the F sub-pixel units are provided with a facial recognition module for capturing.
  • a face image; a display chip and a face recognition chip are provided at one end of the non-display area: the display chip is connected to the R sub-pixel unit, G sub-pixel unit, and B sub-pixel unit, respectively, for driving the R sub-pixel
  • the pixel unit, the G sub-pixel unit, and the B sub-pixel unit perform panel display;
  • the face recognition chip is connected to the F sub-pixel unit and is used to drive the F sub-pixel unit to perform facial image acquisition.
  • the screen of the display panel does not need to be grooved to reserve the positions of the front camera and the face recognition device, thereby improving the production yield of the screen;
  • FIG. 1 is a schematic diagram of an existing display panel architecture
  • FIG. 2 is a schematic structural diagram of an embedded facial recognition display panel according to the present invention.
  • FIG. 3 is a schematic cross-sectional structure diagram of an embodiment of an in-cell facial recognition display panel according to the present invention.
  • FIG. 4 is a flowchart of an embodiment of a panel display and face recognition method according to the present invention.
  • the "first" or “down” of the second feature may include the first and second features in direct contact, and may also include the first and second features. Not directly, but through another characteristic contact between them.
  • the first feature is “above”, “above”, and “above” the second feature, including that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature is higher in level than the second feature.
  • the first feature is “below”, “below”, and “below” of the second feature, including the fact that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature is less horizontal than the second feature.
  • the embedded face recognition display panel includes a display area 21 and a non-display area 22.
  • a plurality of pixel units 211 are distributed in an array in the display area 21, and each pixel unit 211 is composed of an R subpixel unit, a G subpixel unit, a B subpixel unit, and an F subpixel unit.
  • the F subpixel unit is provided with
  • the facial recognition module is used to collect facial images.
  • a display chip 221 and a face recognition chip 222 are provided at one end of the non-display area 22, and the display chip 211 is connected to the R sub-pixel unit, G sub-pixel unit, and B sub-pixel unit, respectively, for driving the R sub-pixel unit.
  • the sub-pixel unit, the G-sub-pixel unit, and the B-sub-pixel unit perform panel display; the face recognition chip 222 is connected to the F-sub-pixel unit and is used to drive the F-sub-pixel unit for facial image acquisition.
  • the facial recognition module is fabricated in an additional F sub-pixel unit (sub pixel F) to capture facial images.
  • each pixel unit (Pixel) consists of Sub Pixel R, Sub It consists of Pixel G, Sub Pixel B, and sub pixel F.
  • the Pixel array is distributed throughout the display area.
  • a display chip and a face recognition chip are arranged at one end of the non-display area, the display chip drives the display panel, and the face recognition chip drives the face recognition module.
  • the display chip 221 and the face recognition chip 222 may be integrated in the same chip.
  • TFTs thin film transistors
  • each R sub-pixel unit in the same row is respectively connected to a first data signal line Data1, and is connected to the display chip 221 through the first data signal line Data1; each G sub-pixel unit in the same row A second data signal line Data2 is connected respectively, and the display chip 221 is connected through the second data signal line Data2; each B sub-pixel unit in the same row is respectively connected to a third data signal line Data3, and passes through all
  • the third data signal line Data3 is connected to the display chip 221; each F sub-pixel unit in the same row is connected to a fourth data signal line Data4, and the fourth data signal line Data4 is connected to the face recognition chip 222.
  • each R, G, B, F sub-pixel unit has its own independent Data line.
  • the Data lines of the R, G, and B sub-pixel units are connected to the display chip, and the Data lines of the F sub-pixel units are connected to the face recognition chip.
  • all the R sub-pixel units, G sub-pixel units, B sub-pixel units, and F sub-pixel units of the same row have thin-film transistors connected to the scanning signal lines of the same row to output high voltage.
  • the display chip 221 inputs the display voltage of the corresponding row to the corresponding R sub-pixel units of the same row through all the first data signal lines Data1, and to all of the second data signal lines to the
  • the corresponding G sub-pixel units of the same row input the display voltage of the corresponding row, and the display voltage of the corresponding row is input to the corresponding B sub-pixel units of the same row through all the third data signal lines;
  • the facial recognition chip 222 All the fourth data signal lines read the facial image information of the corresponding row from the corresponding F sub-pixel units of the same row.
  • Gate1 ⁇ GateN output high level (6 ⁇ 12V) in turn to turn on the TFTs of the pixel units in the corresponding row, and the remaining Gate lines keep low level (-9 ⁇ -7V) in the corresponding row of pixel units.
  • the display chip sends the display voltage of the corresponding row through the Data line of the R, G, and B sub-pixel units of the corresponding row, and the facial recognition chip reads the face image of the corresponding row by accessing the Data line of the F-pixel unit of the corresponding row. information.
  • FIG. 3 a schematic cross-sectional structure diagram of an in-line facial recognition display panel according to an embodiment of the present invention.
  • the display area of the embedded face recognition display panel includes a TFT array substrate and a CF substrate which are oppositely arranged; the TFT array substrate includes a pixel electrode layer, and all the pixel unit arrays are distributed on the pixel electrode layer.
  • the R sub-pixel unit, G sub-pixel unit, B sub-pixel unit, and F sub-pixel unit (shown as R, G, B, and F in the figure) of the pixel unit are connected to a thin film transistor (TFT), respectively.
  • TFT thin film transistor
  • the TFT array substrate includes a backlight layer 310, a TFT glass substrate 311, an insulation layer 312, a gate insulation layer (GI) 313, a drain insulation layer (ILD) 314, and an organic planarization layer (PLN), which are sequentially stacked in this order.
  • the CF substrate includes a CF glass substrate 321 and a black matrix (BM) 322 formed on the CF glass substrate 321.
  • a third metal layer M3 is deposited and patterned on the common electrode layer 316. All thin film transistors are prepared on the insulating layer 312. Specifically, an N-type substrate (the gate of the TFT) is prepared on the insulating layer 312 and covers the gate insulating layer 313. A first metal layer M1 and a first metal layer M1 are deposited on the gate insulating layer 313.
  • the first metal layer M1 is patterned to form a source and a drain of the thin film transistor; wherein the source of the thin film transistor is connected to the corresponding sub-pixel unit through a via hole, and the drain is used to connect to the Data line; in the insulating layer A metal light-shielding layer 3121 is provided at a position corresponding to all the thin film transistors on 312.
  • the GI layer is used to separate the gate of M2 from the TFT; the ILD layer is used to separate M2 and M1; the PLN layer is a thicker flat layer and is used to fill the unevenness formed by the lower TFT to facilitate the production of more Upper layer circuit; IL layer is used to separate M3 and Com ITO. Where M3 needs to be connected to Com ITO, the IL layer needs to be punched to make M3 and Com ITO contact; PV layer is used to connect the pixel electrode (Pixel ITO) and M3.
  • Each F sub-pixel unit is integrated with a CMOS light sensor or a CCD light sensor for image acquisition.
  • the F sub-pixel unit may integrate one of a three-color photosensitive unit, a monochrome photosensitive unit, or an infrared photosensitive unit.
  • the image recognized by the monochrome photosensitive unit is a black-and-white image.
  • the infrared photosensitive unit the face does not need to be illuminated by an external light source, and face recognition can be achieved in the absence of light (such as at night).
  • the face 39 needs to be illuminated by an external light source, such as sunlight, indoor lighting, and the like.
  • an external light source such as sunlight, indoor lighting, and the like.
  • the photosensitive unit responds and converts the intensity information of the reflected light into an electrical signal of the corresponding intensity.
  • the facial recognition chip detects each After the electrical signal corresponding to the F sub-pixel unit is converted into a facial picture, the facial image acquisition is realized.
  • the collected facial image is compared with a pre-stored facial image. If they are the same, the facial recognition is passed, and if they are not the same, the facial recognition fails.
  • the F sub-pixel unit equipped with a face recognition module can also replace the front camera for taking pictures.
  • each F sub-pixel unit is provided with a third metal layer M3 under the orthographic projection on the TFT array substrate 31 to prevent light, so as to prevent the light in the backlight layer from directly irradiating the F sub-pixel unit, which may cause facial recognition. interference.
  • the embedded face recognition display panel provided by the present invention does not need to dig grooves on the screen of the display panel to reserve the positions of the front camera and the face recognition device, so as to improve the production yield of the screen. Improve the beauty of the whole machine; the face recognition method can also replace the front camera for taking pictures, so there is no need for an additional front camera and face recognition device, saving the cost of the whole machine.
  • the present invention also provides a liquid crystal display device.
  • the display panel of the liquid crystal display device adopts the in-cell facial recognition display panel of the present invention.
  • the embedded face recognition display panel includes a display area and a non-display area; a plurality of pixel units are distributed in an array in the display area, and each pixel unit includes an R sub-pixel unit, a G sub-pixel unit, and a B sub-unit. A pixel unit and an F sub-pixel unit are provided.
  • the F sub-pixel unit is provided with a facial recognition module for collecting facial images; one end of the non-display area is provided with a display chip and a facial recognition chip: the display chip and the
  • the R subpixel unit, the G subpixel unit, and the B subpixel unit are connected to drive the R subpixel unit, the G subpixel unit, and the B subpixel unit for panel display; the face recognition chip and the F subpixel The units are connected and used to drive the F sub-pixel unit to perform facial image acquisition.
  • the present invention also provides a panel display and face recognition method, which uses the in-cell face recognition display panel of the present invention.
  • the method includes: all scanning signal lines of the display panel output high levels in order to turn on the corresponding thin film transistors of all R sub-pixel units, G sub-pixel units, B sub-pixel units and F sub-pixel units of a corresponding row; a display chip Input the display voltage of the corresponding row to the corresponding R sub-pixel units of the corresponding row through all the first data signal lines, and input the display voltage of the corresponding row to the corresponding G sub-pixel units of the corresponding row through all the second data signal lines.
  • the data signal line inputs the display voltage of the corresponding row to the corresponding B sub-pixel unit of the corresponding row; the face recognition chip reads the facial image information of the corresponding row from the corresponding F sub-pixel unit of the corresponding row through all the fourth data signal lines.
  • Gate1 ⁇ GateN (eg Gate1920) output high level (6 ⁇ 12V) in turn to turn on the TFT of the pixel unit of the corresponding row, and the remaining Gate lines keep low level (-9 ⁇ -7V) of the pixel unit of the corresponding row.
  • the TFT is turned off, the display chip sends the correct display voltage through the Data line of the R, G, and B sub-pixel units of the corresponding row, and the facial recognition chip reads the correct Facial image information.
  • FIG. 4 a flowchart of an embodiment of a panel display and face recognition method according to the present invention is shown.
  • the method includes the following steps: S41: At the first moment, the first scanning signal line of the display panel outputs a high level to turn on the corresponding thin film transistors of all the sub-pixel units in the first row, and the display chip passes all the first data signal lines.
  • the second data signal line, and the third data signal line respectively input the display voltage of the first row to the corresponding R subpixel units, G subpixel units, and B subpixel units of the first row, and the face recognition chip passes all fourth
  • the data signal line reads the facial image information of the first row from the corresponding F sub-pixel unit of the first row; S42: at the second moment, the second scanning signal line of the display panel outputs a high level to all of the second row
  • the corresponding thin film transistor of the sub-pixel unit is turned on, and the display chip passes all the first data signal lines, the second data signal lines, and the third data signal lines to the corresponding R sub-pixel units, G sub-pixel units, and B of the second row, respectively.
  • the sub-pixel unit inputs the display voltage of the second row, and the face recognition chip reads the face of the second row from the corresponding F sub-pixel unit of the second row through all the fourth data signal lines.
  • the second data signal line, and the third data signal line respectively input the display voltage of the third row to the corresponding R subpixel units, G subpixel units, and B subpixel units of the third row, and the face recognition chip passes all the fourth
  • the data signal line reads the facial image information of the third row from the corresponding F sub-pixel unit of the third row; S44: and so on until the last scanning signal line of the display panel outputs a high level, and all of the last row
  • the corresponding thin film transistor of the sub-pixel unit is turned on, and the display chip passes all the first data signal
  • N 1920 as an example to describe the specific workflow of the panel display and face recognition method of the present invention:
  • Gate1 At the first moment, Gate1 outputs high level, and turns on the TFT corresponding to all sub-pixel units in the first row, and other Gate2 ⁇ Gate1920 outputs low level, and turns off the TFT corresponding to the sub-pixel units in other rows;
  • the chip sends the display voltage of the first line through the Data line of the R, G, and B sub-pixel units, and the face recognition chip reads the face image information of the first line through the Data line of the F-sub-pixel units;
  • Gate2 At the second moment, Gate2 outputs high level, turns on the TFT corresponding to all sub-pixel units in the second row, and other Gate1, Gate3 ⁇ Gate1920 outputs low level, turns off the TFT corresponding to the sub-pixel units in other rows;
  • the display chip sends the display voltage of the second line through the Data line of the R, G, and B sub-pixel units, and the facial recognition chip reads the face image information of the second line through the Data line of the F-sub-pixel units;
  • Gate3 outputs high level, turns on the TFT corresponding to all sub-pixel units in the third row, and other Gate1-Gate2, Gate4 ⁇ Gate1920 outputs low level, and turns off the TFT corresponding to the sub-pixel units in other rows.
  • the display chip sends the display voltage of the third row through the Data line of the R, G, and B sub-pixel units, and the facial recognition chip reads the facial image information of the third row through the Data line of the F-sub-pixel units;
  • Gate1920 By analogy, until Gate1920 outputs a high level, the TFTs corresponding to all the sub-pixel units in row 1920 are turned on, and other Gate1 ⁇ Gate1919 output a low level, and the TFTs corresponding to the sub-pixel units in other rows are turned off;
  • the chip sends the display voltage of line 1920 through the Data line of the R, G, and B sub-pixel units, and the facial recognition chip reads the face image information of line 1920 through the Data line of the F-sub-pixel units;

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Abstract

一种内嵌式面部识别显示面板、方法及液晶显示装置，通过将面部识别模块制作在像素单元（211）中额外的一个F子像素单元内，用于采集面部图像，在非显示区（22）的一端设置显示芯片（221）和面部识别芯片（222），显示芯片（221）驱动显示面板，面部识别芯片（222）驱动面部识别模块，可以进一步利于全面屏设计、提高屏幕生产良率、节省整机成本。

Description

内嵌式面部识别显示面板、方法及液晶显示装置 技术领域
本发明涉及显示面板技术领域，尤其涉及一种内嵌式面部识别显示面板、方法及液晶显示装置。
 背景技术
随着面部识别技术的发展，各大手机厂商均在布局面部识别。由于现有的人脸识别需要单独的面部识别传感器，而面部识别传感器需要占据一定空间，不利于全面屏设计。将面部识别功能嵌入到液晶面板中，因为有制造材料成本低，且更加利于做全面屏设计的优势，越来越受到面板制造公司的重视。已知的面部识别传感器设置方案是采用在屏幕顶部挖槽的方式，将面部识别传感器放在挖槽位置。
 技术问题
参考图1，现有显示面板架构示意图。现有显示面板分为显示区11和非显示区12，在非显示区12的一端设置显示芯片121，显示芯片121驱动显示面板正常工作。显示区11内设置有像素单元（Pixel）111，每一像素单元111由R子像素单元（Sub Pixel R）、G子像素单元（Sub Pixel G）和B子像素单元（Sub Pixel B）组成，所有像素单元111阵列分布在整个显示区11内。
现有通过在屏幕顶部挖槽将面部识别传感器放在挖槽位置的面部识别设置方式，其缺点是影响美观且不能做到真正的全面屏。同时屏幕挖槽设计的工艺难度大，影响屏幕生产良率良品率低，也增加了屏幕成本。再者额外的面部识别器件也增加了整机成本。
 技术解决方案
本发明的目的在于，提供一种内嵌式面部识别显示面板、方法及液晶显示装置，可以进一步利于全面屏设计、提高屏幕生产良率、节省整机成本。
为实现上述目的，本发明提供了一种内嵌式面部识别显示面板，包括显示区和非显示区；所述显示区内阵列分布有多个像素单元，每一像素单元由R子像素单元、G子像素单元、B子像素单元和F子像素单元组成，所述F子像素单元设有面部识别模块用于采集面部图像；所述非显示区的一端设有显示芯片和面部识别芯片：所述显示芯片分别与所述R子像素单元、G子像素单元、B子像素单元相连，用于驱动所述R子像素单元、G子像素单元、B子像素单元进行面板显示；所述面部识别芯片与所述F子像素单元相连，用于驱动所述F子像素单元进行面部图像采集。
为实现上述目的，本发明还提供了一种面板显示与面部识别方法，采用内嵌式面部识别显示面板，所述内嵌式面部识别显示面板，包括显示区和非显示区；所述显示区内阵列分布有多个像素单元，每一像素单元由R子像素单元、G子像素单元、B子像素单元和F子像素单元组成，所述F子像素单元设有面部识别模块用于采集面部图像；所述非显示区的一端设有显示芯片和面部识别芯片：所述显示芯片分别与所述R子像素单元、G子像素单元、B子像素单元相连，用于驱动所述R子像素单元、G子像素单元、B子像素单元进行面板显示；所述面部识别芯片与所述F子像素单元相连，用于驱动所述F子像素单元进行面部图像采集；所述方法包括：所述显示面板的所有扫描信号线依次输出高电平，以打开对应行的所有R子像素单元、G子像素单元、B子像素单元和F子像素单元相应的薄膜晶体管；显示芯片通过所有第一数据信号线向对应行的相应R子像素单元输入对应行的显示电压，通过所有第二数据信号线向对应行的相应G子像素单元输入对应行的显示电压，通过所有第三数据信号线向对应行的相应B子像素单元输入对应行的显示电压；面部识别芯片通过所有第四数据信号线从对应行的相应F子像素单元读取对应行的面部图像信息。
为实现上述目的，本发明还提供了一种液晶显示装置，所述液晶显示装置包括内嵌式面部识别显示面板；所述内嵌式面部识别显示面板包括显示区和非显示区；所述显示区内阵列分布有多个像素单元，每一像素单元由R子像素单元、G子像素单元、B子像素单元和F子像素单元组成，所述F子像素单元设有面部识别模块用于采集面部图像；所述非显示区的一端设有显示芯片和面部识别芯片：所述显示芯片分别与所述R子像素单元、G子像素单元、B子像素单元相连，用于驱动所述R子像素单元、G子像素单元、B子像素单元进行面板显示；所述面部识别芯片与所述F子像素单元相连，用于驱动所述F子像素单元进行面部图像采集。
 有益效果
本发明的优点在于：
(1) 显示面板的屏幕不用挖槽预留前置摄像头和面部识别器件的位置，提高屏幕生产良率；
(2) 内嵌式面部识别设置方式更加利于全面屏设计，提高整机美观；
(3) 无需额外的前置摄像头和面部识别器件，节省整机成本。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例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，现有显示面板架构示意图；
图2，本发明所述的内嵌式面部识别显示面板架构示意图；
图3，本发明所述的内嵌式面部识别显示面板一实施例的剖面结构示意图；
图4，本发明所述的面板显示与面部识别方法一实施例的流程图。
 本发明的实施方式
下面详细描述本发明的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
参考图2，本发明所述的内嵌式面部识别显示面板架构示意图。所述的内嵌式面部识别显示面板，包括显示区21和非显示区22。所述显示区21内阵列分布有多个像素单元211，每一像素单元211由R子像素单元、G子像素单元、B子像素单元和F子像素单元组成，所述F子像素单元设有面部识别模块用于采集面部图像。所述非显示区22的一端设有显示芯片221和面部识别芯片222：所述显示芯片211分别与所述R子像素单元、G子像素单元、B子像素单元相连，用于驱动所述R子像素单元、G子像素单元、B子像素单元进行面板显示；所述面部识别芯片222与所述F子像素单元相连，用于驱动所述F子像素单元进行面部图像采集。
也即，将面部识别模块制作在额外的一个F子像素单元（sub pixel F）内，用于采集面部图像。这时每一像素单元（Pixel）由Sub Pixel R、Sub Pixel G、Sub Pixel B和sub pixel F组成，Pixel阵列分布在整个显示区。在非显示区的一端设置显示芯片和面部识别芯片，显示芯片驱动显示面板，面部识别芯片驱动面部识别模块。
可选的，显示芯片221和面部识别芯片222可以集成在同一芯片内。
具体的，阵列分布的多个像素单元211中，同一行的所有R子像素单元、G子像素单元、B子像素单元和F子像素单元通过相应的薄膜晶体管（TFT）连接同一条扫描信号线（Gate）；同一行的每一R子像素单元分别连接一第一数据信号线Data1，并通过所述第一数据信号线Data1接入所述显示芯片221；同一行的每一G子像素单元分别连接一第二数据信号线Data2，并通过所述第二数据信号线Data2接入所述显示芯片221；同一行的每一B子像素单元分别连接一第三数据信号线Data3，并通过所述第三数据信号线Data3接入所述显示芯片221；同一行的每一F子像素单元连接一第四数据信号线Data4，并通过所述第四数据信号线Data4接入所述面部识别芯片222。也即，在内嵌式面部识别显示面板中，同一行的所有像素单元共用一条Gate线，每一R、G、B、F子像素单元都有自己独立的Data线。其中R、G、B子像素单元的Data线接入显示芯片， F子像素单元的Data线接入面部识别芯片。
阵列分布的多个像素单元211中，同一行的所有R子像素单元、G子像素单元、B子像素单元和F子像素单元的薄膜晶体管在接入所述同一行的扫描信号线输出高电平时导通；所述显示芯片221，通过所有所述第一数据信号线Data1向所述同一行的相应R子像素单元输入对应行的显示电压、通过所有所述第二数据信号线向所述同一行的相应G子像素单元输入对应行的显示电压、通过所有所述第三数据信号线向所述同一行的相应B子像素单元输入对应行的显示电压；所述面部识别芯片222，通过所有所述第四数据信号线从所述同一行的相应F子像素单元读取对应行的面部图像信息。也即，Gate1~GateN依次输出高电平（6~12V）将对应行的像素单元的TFT打开，其余Gate线保持低电平（-9~-7V）对应行的像素单元的TFT关断，显示芯片通过接入对应行的R、G、B子像素单元的Data线送入对应行的显示电压，面部识别芯片通过接入对应行的F子像素单元的Data线读取对应行的面部图像信息。
参考图3，本发明所述的内嵌式面部识别显示面板一实施例的剖面结构示意图。所述的内嵌式面部识别显示面板的显示区包括相对设置的TFT阵列基板和CF基板；所述TFT阵列基板包括像素电极层，所有所述像素单元阵列分布于所述像素电极层上，每一所述像素单元的R子像素单元、G子像素单元、B子像素单元和F子像素单元（如图中标号R、G、B、F所示）分别与一薄膜晶体管（TFT）相连。具体的，所述TFT阵列基板包括依次层叠设置的背光层310、TFT玻璃基板311、绝缘层312、栅极绝缘层（GI）313、漏极绝缘层（ILD）314、有机平坦层（PLN）315、公共电极层（COM ITO）316、触控绝缘层（IL）317、显示像素绝缘层（PV）318以及像素电极层319，所有像素单元阵列分布于所述像素电极层319上；所述CF基板包括CF玻璃基板321和形成在所述CF玻璃基板321上的黑色矩阵（BM）322。公共电极层316上沉积并图形化有第三金属层M3。所有薄膜晶体管制备于绝缘层312上，具体的，在绝缘层312上制备N型衬底（TFT的栅极）并覆盖栅极绝缘层313；在栅极绝缘层313沉积第一金属层M1和第一金属层M1，并图形化形成薄膜晶体管的源极和漏极；其中，薄膜晶体管的源极通过过孔与相应子像素单元相连，漏极用于与Data线连接；在所述绝缘层312上与所有薄膜晶体管相对应的位置设有金属遮光层3121。GI层，用于将M2和TFT的栅极隔开；ILD层，用于将M2和M1隔开；PLN层，平坦层较厚，用于把下层TFT形成的凹凸填平，以便于制作更上层的电路；IL层，用于将M3和Com ITO隔开，在M3需要和Com ITO连接的地方，IL层需打孔，使M3和Com ITO接触；PV层，用于将像素电极（Pixel ITO）和M3隔开。
每一F子像素单元上集成有CMOS感光元件或CCD感光元件，用于图像采集。F子像素单元上可以集成三色感光单元、单色感光单元或红外感光单元的其中之一。采用单色感光单元识别出来的图像是黑白图像，采用红外感光单元，则面部不需外部光源照射，可实现无光条件下（例如晚上）的面部识别。
以单色感光单元面部识别为例：进行面部识别时，面部39需要外部光源照射，如太阳光、室内的灯光等。以太阳光照射为例，面部反射的太阳光入射到F子像素单元上的感光单元上，感光单元做出响应，将反射光的强度信息转换成对应强度的电信号，面部识别芯片检测到每一个F子像素单元对应的电信号后，将其转换成一幅面部图片，进而实现面部图像采集。将采集的面部图像和预存储的面部图像进行比对，若相同则面部识别通过，若不相同则面部识别失败。设有面部识别模块的F子像素单元还可替代前置摄像头，用于拍照。
优选的，每一F子像素单元在所述TFT阵列基板31上的正投影下方设有第三金属层M3进行遮光，以避免背光层中的光线直接照射到F子像素单元，对面部识别造成干扰。
本发明提供的内嵌式面部识别显示面板，显示面板的屏幕不用挖槽预留前置摄像头和面部识别器件的位置，提高屏幕生产良率；内嵌式面部识别设置方式更加利于全面屏设计，提高整机美观；面部识别方式还可替代前置摄像头用于拍照，因而无需额外的前置摄像头和面部识别器件，节省整机成本。
本发明还提供一种液晶显示装置，所述液晶显示装置的显示面板采用本发明上述的内嵌式面部识别显示面板。具体的，所述内嵌式面部识别显示面板包括显示区和非显示区；所述显示区内阵列分布有多个像素单元，每一像素单元由R子像素单元、G子像素单元、B子像素单元和F子像素单元组成，所述F子像素单元设有面部识别模块用于采集面部图像；所述非显示区的一端设有显示芯片和面部识别芯片：所述显示芯片分别与所述R子像素单元、G子像素单元、B子像素单元相连，用于驱动所述R子像素单元、G子像素单元、B子像素单元进行面板显示；所述面部识别芯片与所述F子像素单元相连，用于驱动所述F子像素单元进行面部图像采集。
本发明还提供了一种面板显示与面部识别方法，采用本发明所述的内嵌式面部识别显示面板。所述方法包括：显示面板的所有扫描信号线依次输出高电平，以打开对应行的所有R子像素单元、G子像素单元、B子像素单元和F子像素单元相应的薄膜晶体管；显示芯片通过所有第一数据信号线向对应行的相应R子像素单元输入对应行的显示电压，通过所有第二数据信号线向对应行的相应G子像素单元输入对应行的显示电压，通过所有第三数据信号线向对应行的相应B子像素单元输入对应行的显示电压；面部识别芯片通过所有第四数据信号线从对应行的相应F子像素单元读取对应行的面部图像信息。
也即，Gate1~GateN（例如Gate1920）依次输出高电平（6~12V）将对应行的像素单元的TFT打开，其余Gate线保持低电平（-9~-7V）对应行的像素单元的TFT关断，显示芯片通过接入对应行的R、G、B子像素单元的Data线送入正确的显示电压，面部识别芯片通过接入对应行的F子像素单元的Data线读取正确的面部图像信息。
参考图4，本发明所述的面板显示与面部识别方法一实施例的流程图。所述方法包括如下步骤：S41：第一时刻，显示面板的第一条扫描信号线输出高电平将第一行的所有子像素单元相应的薄膜晶体管打开，显示芯片通过所有第一数据信号线、第二数据信号线、第三数据信号线分别向所述第一行的相应R子像素单元、G子像素单元、B子像素单元输入第一行的显示电压，面部识别芯片通过所有第四数据信号线从所述第一行的相应F子像素单元读取第一行的面部图像信息；S42：第二时刻，显示面板的第二条扫描信号线输出高电平将第二行的所有子像素单元相应的薄膜晶体管打开，显示芯片通过所有第一数据信号线、第二数据信号线、第三数据信号线分别向所述第二行的相应R子像素单元、G子像素单元、B子像素单元输入第二行的显示电压，面部识别芯片通过所有第四数据信号线从所述第二行的相应F子像素单元读取第二行的面部图像信息；S43：第三时刻，所述显示面板的第三条扫描信号线输出高电平将第三行的所有子像素单元相应的薄膜晶体管打开，所述显示芯片通过所有第一数据信号线、第二数据信号线、第三数据信号线分别向所述第三行的相应R子像素单元、G子像素单元、B子像素单元输入第三行的显示电压，面部识别芯片通过所有第四数据信号线从所述第三行的相应F子像素单元读取第三行的面部图像信息；S44：依次类推，直至所述显示面板的最后一条扫描信号线输出高电平将最后一行的所有子像素单元相应的薄膜晶体管打开，所述显示芯片通过所有第一数据信号线、第二数据信号线、第三数据信号线分别向所述最后一行的相应R子像素单元、G子像素单元、B子像素单元输入最后一行的显示电压，面部识别芯片通过所有第四数据信号线从所述最后一行的相应F子像素单元读取最后一行的面部图像信息，之后跳转至步骤S41。
以下以N=1920为例来说明本发明所述的面板显示与面部识别方法的具体工作流程：
1）第一时刻，Gate1输出高电平，将第一行的所有子像素单元对应的TFT打开，其它Gate2~Gate1920输出低电平，将其它行的子像素单元对应的TFT关闭；此时显示芯片通过R、G、B子像素单元的Data线送入第一行的显示电压，面部识别芯片通过F子像素单元的Data线读取第一行的面部图像信息；
2）第二时刻，Gate2输出高电平，将第二行的所有子像素单元对应的TFT打开，其它Gate1、Gate3~Gate1920输出低电平，将其它行的子像素单元对应的TFT关闭；此时显示芯片通过R、G、B子像素单元的Data线送入第二行的显示电压，面部识别芯片通过F子像素单元的Data线读取第二行的面部图像信息；
3）第三时刻，Gate3输出高电平，将第三行的所有子像素单元对应的TFT打开，其它Gate1-Gate2、Gate4~Gate1920输出低电平，将其它行的子像素单元对应的TFT关闭；此时显示芯片通过R、G、B子像素单元的Data线送入第三行的显示电压，面部识别芯片通过F子像素单元的Data线读取第三行的面部图像信息；
4）依次类推，直至Gate1920输出高电平，将第1920行的所有子像素单元对应的TFT打开，其它Gate1 ~Gate1919输出低电平，将其它行的子像素单元对应的TFT关闭；此时显示芯片通过R、G、B子像素单元的Data线送入第1920行的显示电压，面部识别芯片通过F子像素单元的Data线读取第1920行的面部图像信息；
5）跳转到第1步，如此循环第1步至第4步。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。
 工业实用性
本申请的主题可以在工业中制造和使用，具备工业实用性。

Claims (10)

  1. 一种内嵌式面部识别显示面板，包括显示区和非显示区；其中，所述显示区内阵列分布有多个像素单元，每一像素单元由R子像素单元、G子像素单元、B子像素单元和F子像素单元组成，所述F子像素单元设有面部识别模块用于采集面部图像；所述非显示区的一端设有显示芯片和面部识别芯片：所述显示芯片分别与所述R子像素单元、G子像素单元、B子像素单元相连，用于驱动所述R子像素单元、G子像素单元、B子像素单元进行面板显示；所述面部识别芯片与所述F子像素单元相连，用于驱动所述F子像素单元进行面部图像采集。
  2. 如权利要求1所述的内嵌式面部识别显示面板，其中，同一行的所有R子像素单元、G子像素单元、B子像素单元和F子像素单元通过相应的薄膜晶体管连接同一条扫描信号线；同一行的每一R子像素单元分别连接一第一数据信号线，并通过所述第一数据信号线接入所述显示芯片；同一行的每一G子像素单元分别连接一第二数据信号线，并通过所述第二数据信号线接入所述显示芯片；同一行的每一B子像素单元分别连接一第三数据信号线，并通过所述第三数据信号线接入所述显示芯片；同一行的每一F子像素单元分别连接一第四数据信号线，并通过所述第四数据信号线接入所述面部识别芯片。
  3. 如权利要求2所述的内嵌式面部识别显示面板，其中，同一行的所有R子像素单元、G子像素单元、B子像素单元和F子像素单元的薄膜晶体管在接入所述同一行的扫描信号线输出高电平时导通；所述显示芯片，通过所有所述第一数据信号线向所述同一行的相应R子像素单元输入对应行的显示电压，通过所有所述第二数据信号线向所述同一行的相应G子像素单元输入对应行的显示电压，通过所有所述第三数据信号线向所述同一行的相应B子像素单元输入对应行的显示电压；所述面部识别芯片，通过所有所述第四数据信号线从所述同一行的相应F子像素单元读取对应行的面部图像信息。
  4. 如权利要求1所述的内嵌式面部识别显示面板，其中，所述显示区包括相对设置的TFT阵列基板和CF基板，所述TFT阵列基板包括像素电极层，所有所述像素单元阵列分布于所述像素电极层上，每一所述像素单元的R子像素单元、G子像素单元、B子像素单元和F子像素单元分别与一薄膜晶体管相连。
  5. 如权利要求4所述的内嵌式面部识别显示面板，其中，每一所述像素单元的F子像素单元集成有CMOS感光元件或CCD感光元件。
  6. 如权利要求4所述的内嵌式面部识别显示面板，其中，每一所述像素单元的F子像素单元集成有三色感光单元、单色感光单元或红外感光单元的其中之一。
  7. 如权利要求4所述的内嵌式面部识别显示面板，其中，每一所述像素单元的F子像素单元在所述TFT阵列基板上的正投影下方设有第三金属层。
  8. 一种面板显示与面部识别方法，采用内嵌式面部识别显示面板，其中，所述内嵌式面部识别显示面板，包括显示区和非显示区；所述显示区内阵列分布有多个像素单元，每一像素单元由R子像素单元、G子像素单元、B子像素单元和F子像素单元组成，所述F子像素单元设有面部识别模块用于采集面部图像；所述非显示区的一端设有显示芯片和面部识别芯片：所述显示芯片分别与所述R子像素单元、G子像素单元、B子像素单元相连，用于驱动所述R子像素单元、G子像素单元、B子像素单元进行面板显示；所述面部识别芯片与所述F子像素单元相连，用于驱动所述F子像素单元进行面部图像采集；所述方法包括：所述显示面板的所有扫描信号线依次输出高电平，以打开对应行的所有R子像素单元、G子像素单元、B子像素单元和F子像素单元相应的薄膜晶体管；显示芯片通过所有第一数据信号线向对应行的相应R子像素单元输入对应行的显示电压，通过所有第二数据信号线向对应行的相应G子像素单元输入对应行的显示电压，通过所有第三数据信号线向对应行的相应B子像素单元输入对应行的显示电压；面部识别芯片通过所有第四数据信号线从对应行的相应F子像素单元读取对应行的面部图像信息。
  9. 如权利要求8所述的面板显示与面部识别方法，其中，所述方法进一步为：（1）第一时刻，所述显示面板的第一条扫描信号线输出高电平将第一行的所有子像素单元相应的薄膜晶体管打开，所述显示芯片通过所有所述第一数据信号线、第二数据信号线、第三数据信号线分别向所述第一行的相应R子像素单元、G子像素单元、B子像素单元输入第一行的显示电压，所述面部识别芯片通过所有所述第四数据信号线从所述第一行的相应F子像素单元读取第一行的面部图像信息；（2）第二时刻，所述显示面板的第二条扫描信号线输出高电平将第二行的所有子像素单元相应的薄膜晶体管打开，所述显示芯片通过所有所述第一数据信号线、第二数据信号线、第三数据信号线分别向所述第二行的相应R子像素单元、G子像素单元、B子像素单元输入第二行的显示电压，所述面部识别芯片通过所有所述第四数据信号线从所述第二行的相应F子像素单元读取第二行的面部图像信息；（3）第三时刻，所述显示面板的第三条扫描信号线输出高电平将第三行的所有子像素单元相应的薄膜晶体管打开，所述显示芯片通过所有所述第一数据信号线、第二数据信号线、第三数据信号线分别向所述第三行的相应R子像素单元、G子像素单元、B子像素单元输入第三行的显示电压，所述面部识别芯片通过所有所述第四数据信号线从所述第三行的相应F子像素单元读取第三行的面部图像信息；（4）依次类推，直至所述显示面板的最后一条扫描信号线输出高电平将最后一行的所有子像素单元相应的薄膜晶体管打开，所述显示芯片通过所有所述第一数据信号线、第二数据信号线、第三数据信号线分别向所述最后一行的相应R子像素单元、G子像素单元、B子像素单元输入最后一行的显示电压，所述面部识别芯片通过所有所述第四数据信号线从所述最后一行的相应F子像素单元读取最后一行的面部图像信息；之后跳转至步骤（1）。
  10. 一种液晶显示装置，其中，所述液晶显示装置包括内嵌式面部识别显示面板；所述内嵌式面部识别显示面板包括显示区和非显示区；所述显示区内阵列分布有多个像素单元，每一像素单元由R子像素单元、G子像素单元、B子像素单元和F子像素单元组成，所述F子像素单元设有面部识别模块用于采集面部图像；所述非显示区的一端设有显示芯片和面部识别芯片：所述显示芯片分别与所述R子像素单元、G子像素单元、B子像素单元相连，用于驱动所述R子像素单元、G子像素单元、B子像素单元进行面板显示；所述面部识别芯片与所述F子像素单元相连，用于驱动所述F子像素单元进行面部图像采集。
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