WO2024254917A1 - 液晶显示装置及车载监控装置 - Google Patents

液晶显示装置及车载监控装置 Download PDF

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Publication number
WO2024254917A1
WO2024254917A1 PCT/CN2023/104700 CN2023104700W WO2024254917A1 WO 2024254917 A1 WO2024254917 A1 WO 2024254917A1 CN 2023104700 W CN2023104700 W CN 2023104700W WO 2024254917 A1 WO2024254917 A1 WO 2024254917A1
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WO
WIPO (PCT)
Prior art keywords
light
color
layer
shielding layer
shielding
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/104700
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English (en)
French (fr)
Inventor
周运红
武腾
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Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
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Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US18/552,903 priority Critical patent/US20250085585A1/en
Priority to DE112023000064.6T priority patent/DE112023000064T5/de
Publication of WO2024254917A1 publication Critical patent/WO2024254917A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/24—Reminder alarms, e.g. anti-loss alarms
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0075—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6893—Cars
    • 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
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136222—Colour filters incorporated in the active matrix substrate
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/06—Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
    • A61B5/18—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state for vehicle drivers or machine operators
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/11—Function characteristic involving infrared radiation

Definitions

  • the present application relates to the field of display technology, and in particular to a liquid crystal display device and a vehicle-mounted monitoring device.
  • the Driver Monitor System is mainly used for driver fatigue monitoring.
  • vehicle networking and related technologies it has gradually evolved and iterated with more functions.
  • the commonly used method is to use active infrared sensors (Infrared Sensor) to collect infrared light information, so as to realize functions such as driver status monitoring and meet the needs of the driver status monitoring system.
  • Infrared Sensor active infrared sensors
  • CUP blind hole screen
  • the infrared sensor is integrated into the cluster module (Cluster Module), and the sensor is hidden through a better integrated black effect.
  • the infrared light passes through the cover plate and the display panel to reach the infrared sensor under the display panel, the intensity of the infrared light will be lost to a certain extent, which will have a certain impact on the imaging effect of the infrared sensor.
  • the color resist layer, black matrix and spacer layer located above the infrared sensor in the display panel are removed and replaced with a multi-layer stacked color resist of different colors. Since the metal wiring adopts a winding design when passing through the area where the infrared sensor is located, avoiding the area where the infrared sensor is located, the area where the winding is located needs to be shielded by a black matrix.
  • this design will lead to a new problem, that is, the reflectivity of the area where the infrared sensor is located in the display panel and the area where the winding is located are quite different, which affects the effect of the integrated black display panel.
  • the embodiments of the present application provide a liquid crystal display device and a vehicle-mounted monitoring device to solve the technical problem of poor integrated black effect of existing display devices.
  • the embodiment of the present application provides a liquid crystal display device, including an infrared light-transmitting area and a light-shielding area outside the infrared light-transmitting area, and the liquid crystal display device includes:
  • a first substrate and a second substrate arranged opposite to each other;
  • a backlight module is arranged on a side of the first substrate facing away from the second substrate;
  • An infrared sensor is arranged on a side of the backlight module away from the first substrate and located in the infrared light-transmitting area;
  • an infrared transparent layer disposed between the second substrate and the first substrate and located in the infrared transparent region, the infrared transparent layer at least comprising a first color resist layer 31 and a second color resist layer stacked and having different colors;
  • the first light shielding layer is disposed between the second substrate and the first substrate and is located in the light shielding area;
  • the first light-shielding layer includes a first color-blocking light-shielding layer and a second color-blocking light-shielding layer which are stacked and have different colors.
  • the light-shielding area includes a first sub-light-shielding area arranged around the infrared light-transmitting area
  • the liquid crystal display device includes a display area surrounding the first sub-light-shielding area
  • the first light-shielding layer is arranged within the first sub-light-shielding area
  • a metal winding segment located in the first sub-light-shielding area is provided between the first substrate and the first light-shielding layer;
  • the orthographic projection of the metal winding segment on the first substrate is located within the orthographic projection of the first light shielding layer on the first substrate.
  • the first light-shielding layer includes a third color-blocking light-shielding layer, and the first color-blocking light-shielding layer, the second color-blocking light-shielding layer, and the third color-blocking light-shielding layer have different colors and are stacked.
  • materials of two of the first color-blocking light-shielding layer, the second color-blocking light-shielding layer, and the third color-blocking light-shielding layer are respectively the same as materials of the first color-blocking layer and the second color-blocking layer and are arranged in the same layer, and the first color-blocking light-shielding layer, the second color-blocking light-shielding layer, and the third color-blocking light-shielding layer are respectively one of a red color-blocking layer, a green color-blocking layer, and a blue color-blocking layer.
  • the infrared light-transmitting layer further includes a third color-blocking layer, wherein the first color-blocking layer, the second color-blocking layer, and the third color-blocking layer have different colors and are stacked, and the color layer of the color blocks in the first color-blocking light-blocking layer, the second color-blocking light-blocking layer, and the third color-blocking light-blocking layer is The stacking sequence is the same as the stacking sequence of the color resist colors in the first color resist layer, the second color resist layer, and the third color resist layer.
  • the stacked first color block light-shielding layer, the second color block light-shielding layer and the third color block light-shielding layer constitute a first color block stack
  • the first color block stack is distributed in an array
  • the first light-shielding layer also includes a first black matrix block arranged between adjacent first color block stacks.
  • the first color block light blocking layer and the second color block light blocking layer constitute a first color block stack
  • the first light blocking layer also includes a first black matrix block arranged on a side of the first color block stack close to the first substrate and overlapping with the first color block stack.
  • the liquid crystal display device includes a display area located between the infrared light-transmitting area and the first sub-light-shielding area, the liquid crystal display device includes a filter layer located between the second substrate and the first substrate, the filter layer is located in the display area, the filter layer includes a plurality of color resist blocks of different colors, and a second black matrix block located between adjacent color resist blocks.
  • the liquid crystal display device also includes a display area located between the infrared light-transmitting area and the first sub-light-shielding area, the light-shielding area also includes a second sub-light-shielding area arranged around the display area, and the liquid crystal display device includes a second light-shielding layer arranged between the second substrate and the first substrate, the second light-shielding layer is located in the second sub-light-shielding area, and the second light-shielding layer includes a fourth color-blocking light-shielding layer, a fifth color-blocking light-shielding layer, and a sixth color-blocking light-shielding layer that are stacked and have different colors.
  • the stacked fourth color block light-shielding layer, the fifth color block light-shielding layer and the sixth color block light-shielding layer form a second color block stack
  • the second color block stack is distributed in an array
  • the second light-shielding layer also includes a third black matrix block arranged between adjacent second color block stacks.
  • the liquid crystal display device further includes a display area located between the infrared light-transmitting area and the first sub-light-shielding area, the light-shielding area further includes a second sub-light-shielding area arranged around the display area, and the liquid crystal display device includes a second light-shielding layer arranged on one side of the second substrate and the first substrate, and the second light-shielding layer is located in the second sub-light-shielding area, wherein,
  • the second light-shielding layer includes a fourth color-blocking light-shielding layer and a fifth color-blocking light-shielding layer which are stacked and have different colors.
  • the fourth color-blocking light-shielding layer and the fifth color-blocking light-shielding layer form a second color-blocking stack.
  • the second light-shielding layer also includes a third black matrix block which is arranged on a side of the second color-blocking stack close to the first substrate and overlaps with the second color-blocking stack.
  • the present application also provides a vehicle-mounted monitoring device, comprising the liquid crystal display device described in any of the above embodiments.
  • the present application provides a liquid crystal display device and a vehicle-mounted monitoring device, comprising an infrared light-transmitting area and a light-shielding area outside the infrared light-transmitting area, wherein the liquid crystal display device comprises a first substrate and a second substrate arranged opposite to each other; a backlight module arranged on a side of the first substrate away from the second substrate, an infrared sensor arranged on a side of the backlight module away from the first substrate, an infrared light-transmitting layer and a first light-shielding layer arranged between the second substrate and the first substrate, wherein the infrared sensor is located in the infrared light-transmitting area, the infrared light-transmitting layer is located in the infrared light-transmitting area, the infrared light-transmitting layer comprises a first color-blocking layer and a second color-blocking layer stacked and having different colors, and the first light-shielding layer is located in
  • FIG1 is a partial structural schematic diagram of a liquid crystal display device in an exemplary technology
  • FIG2 is a diagram showing the reflectivity test results of a partial area of the liquid crystal display device in FIG1 ;
  • FIG3 is a schematic diagram of a first structure of a liquid crystal display device provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of a planar structure of a liquid crystal display device provided in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a partial structure of a signal line of a liquid crystal display device provided in an embodiment of the present application.
  • FIG6 is a schematic diagram of a second structure of a liquid crystal display device provided in an embodiment of the present application.
  • FIG. 7 is a diagram showing a reflectivity test result of another partial area of a liquid crystal display device according to an exemplary technology
  • FIG8 is a schematic diagram of a third structure of a liquid crystal display device provided in an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a fourth structure of a liquid crystal display device provided in an embodiment of the present application.
  • first and second are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as “first” or “second” may explicitly or implicitly include one or more of the features.
  • “plurality” means two or more, unless otherwise clearly and specifically defined.
  • the Driver Monitor System is mainly used for driver fatigue monitoring.
  • the commonly used method is to use active infrared sensors to collect infrared light information in the 940 ⁇ 10nm band, so as to realize functions such as driver status monitoring and meet the needs of the driver status monitoring system.
  • FIG. 1 is a partial structural diagram of an exemplary display device.
  • the vehicle monitoring device includes a driver state monitoring system and a liquid crystal display device 100
  • the liquid crystal display device 100 includes a first substrate 10 and a second substrate 20 opposite to each other, a liquid crystal layer sandwiched between the first substrate 10 and the second substrate 20, and a backlight module (not shown in the figure) located on the side of the first substrate 10 away from the second substrate 20, and the liquid crystal display device 100 includes an infrared light-transmitting area 101, a display area 103, and a first sub-light-shielding area 102 located between the infrared light-transmitting area 101 and the display area 103.
  • the liquid crystal display device 100 also includes an infrared sensor (not shown in the figure), which is disposed on the side of the backlight module away from the first substrate 10, and the backlight module includes a through hole corresponding to the infrared light-transmitting area 101, and the infrared sensor corresponds to the through hole. Since the black matrix has a low transmittance to light in the infrared band of 940 ⁇ 10nm, the black matrix and the tiled red, green, and blue color resists in the infrared transparent area 101 are removed, and an RGB stacked color resist composed of red color resist 2, green color resist 3, and blue color resist 4 is set in the infrared transparent area 101 on the side of the second substrate 20 close to the first substrate 10.
  • an infrared sensor (not shown in the figure), which is disposed on the side of the backlight module away from the first substrate 10, and the backlight module includes a through hole corresponding to the infrared light-transmitting area 101, and the infrared sensor corresponds to the through hole
  • the RGB stacked color resist has a high transmittance in the infrared band of 940 ⁇ 10nm, and can also achieve the effect of hiding the infrared sensor. Since the metal wiring in the infrared transparent area 101 on the side of the first substrate 10 close to the second substrate 20 needs to be wired in the first sub-shading area 102 through a winding design, a black matrix is set in the first sub-shading area 102 on the side of the second substrate 20 close to the first substrate 10 to block the metal wiring below.
  • FIG. 2 is a photograph of the liquid crystal display device 100 using the above design when the whole black effect is turned off.
  • the inventor of the present application found that the main reason for the poor whole black effect of the liquid crystal display device 100 when it is turned off and the first sub-light shielding area 102 being brighter than the infrared light transmitting area 101 is that The reflectivity difference between the infrared light-transmitting area 101 and the first sub-light-shielding area 102 in the design is relatively large.
  • an embodiment of the present application provides a liquid crystal display device 100 .
  • the liquid crystal display device 100 includes an infrared light-transmitting area 101 and a light-shielding area SA outside the infrared light-transmitting area 101.
  • the infrared light-transmitting area 101 has a high transmittance (greater than 90%) to the infrared band of 940 ⁇ 10nm.
  • the light-shielding area SA is used to shield metal wiring and prevent backlight leakage.
  • the liquid crystal display device 100 includes a first substrate 10 and a second substrate 20 arranged opposite to each other, a backlight module 60 arranged on a side of the first substrate 10 away from the second substrate 20, an infrared sensor 70 arranged on a side of the backlight module 60 away from the first substrate 10, an infrared light-transmitting layer 30 arranged between the second substrate 20 and the first substrate 10, and a first light-shielding layer 40 arranged between the second substrate 20 and the first substrate 10.
  • the first substrate 10 may be configured as an array substrate
  • the second substrate 20 may be configured as a color filter substrate
  • the infrared light-transmitting layer 30 and the first light-shielding layer 40 may be disposed on the second substrate 20, specifically, on the side of the second substrate 20 facing the first substrate 10.
  • the liquid crystal display device may be a COA (Color Filter On Array, color filter integrated on array substrate) display panel
  • the infrared light-transmitting layer 30 and the first light-shielding layer 40 may be disposed on the first substrate 10, specifically, on the side of the first substrate 10 facing the second substrate 20.
  • the infrared sensor 70 is located in the infrared light-transmitting area 101, and is used to collect infrared light information;
  • the infrared light-transmitting layer 30 is located in the infrared light-transmitting area 101, and the infrared light-transmitting layer 30 at least includes a first color-resistance layer 31 and a second color-resistance layer 32 stacked and having different colors, and the infrared light-transmitting layer 30 has both high transmittance and low reflectivity for light in the 940 ⁇ 10nm infrared band;
  • the first light-shielding layer 40 is located in the light-shielding area SA, and is used to shield the metal wiring arranged on the first substrate 10 below; wherein the first light-shielding layer 40 includes a first color-resistance light-shielding layer and a second color-resistance light-shielding layer stacked and having different colors, thereby reducing the reflectivity difference between
  • FIG. 3 is a schematic diagram of a first structure of a liquid crystal display device 100 provided in the present application.
  • the liquid crystal display device 100 provided in this embodiment includes a first substrate 10 and a second substrate 20 disposed opposite to each other, and a liquid crystal layer (not shown in the figure) located between the first substrate 10 and the second substrate 20.
  • the first substrate 10 includes a first substrate 10 and a second substrate 20. ...
  • the liquid crystal display device 100 further includes an infrared sensor 70 disposed on the side of the backlight module 60 away from the first substrate 10, and the infrared sensor 70 is used to collect infrared light information in the 940 ⁇ 10nm band.
  • the backlight module 60 has an opening corresponding to the infrared sensor 70, and the opening exposes the infrared sensor 70.
  • the liquid crystal display device 100 includes an infrared light-transmitting area 101, a display area 103, and a light-shielding area SA, wherein the light-shielding area SA includes a first light-shielding sub-area 102 located between the infrared light-transmitting area 101 and the display area 103.
  • the first light-shielding sub-area 102 is arranged around the infrared light-transmitting area 101.
  • the infrared light-transmitting area 101 and the first light-shielding sub-area 102 do not display images, and the display area 103 is used to display images.
  • the area of the display area 103 is much larger than the area of the infrared light-transmitting area 101, and larger than the area of the first light-shielding sub-area 102.
  • the shape of the infrared light-transmitting area 101 includes but is not limited to a rectangle, a square or a circle, and this embodiment is described by taking a circle as an example.
  • the shape of the first sub-light-shielding area 102 can be a ring.
  • the liquid crystal display device 100 further includes an infrared light-transmitting layer 30 and a first light-shielding layer 40 disposed on a side of the second substrate 20 close to the first substrate 10.
  • the infrared sensor 70 and the infrared light-transmitting layer 30 are located in the infrared light-transmitting area 101.
  • the infrared light-transmitting layer 30 has a low transmittance to visible light and a high transmittance (greater than 90%) to light in the infrared band.
  • the first substrate 10 and the second substrate 20 include a rigid substrate or a flexible substrate.
  • the rigid substrate may be a transparent glass substrate
  • the flexible substrate includes but is not limited to a transparent polyimide substrate.
  • a plurality of signal lines 130 are arranged on one side of the first substrate 10 close to the second substrate 20, including but not limited to gate lines, data lines, power lines, etc.
  • the plurality of signal lines 130 are located outside the infrared light-transmitting area 101 to prevent the signal lines 130 from affecting the infrared sensor 70 in collecting infrared light information.
  • the display area 103 surrounds the infrared light-transmitting area 101, and the infrared light-transmitting area 101 needs to be light-transmitting.
  • the signal line 130 needs to be designed for winding to avoid the infrared transparent area 101. Therefore, the first sub-light shielding area 102 is designed to place the metal winding segment 132 of the signal line 1301, and a backlight module is arranged below the metal winding segment 132. Therefore, the first sub-light shielding area 102 needs to be effectively shielded to avoid light leakage from the backlight module.
  • the metal winding segment 132 is disposed between the first substrate 10 and the first light shielding layer 40 , and the orthographic projection of the metal winding segment 132 on the first substrate 10 is located within the orthographic projection of the first light shielding layer 40 on the first substrate 10 .
  • the plurality of signal lines 130 include a metal winding segment 132 and a metal straight segment 131 electrically connected to both ends of the metal winding segment 132, the metal winding segment 132 is located in the first sub-light-shielding area 102, and the shape of the metal winding segment 132 includes but is not limited to an arc shape and a folded line shape, and the metal winding segment 132 is at least arranged around a portion of the infrared light-transmitting area 101.
  • the shape of the metal winding segment 132 is preferably an arc; when the shape of the infrared light-transmitting area 101 is a polygon, such as a square or a rectangle, the shape of the metal winding segment 132 is preferably a folded line.
  • the infrared transparent layer 30 includes a first color resist layer 31 and a second color resist layer 32 which are stacked and have different colors.
  • the material of the first color resist layer 31 includes but is not limited to one of a red color resist material, a green color resist material and a blue color resist material
  • the material of the second color resist layer 32 includes but is not limited to another of a red color resist material, a green color resist material and a blue color resist material. It is understandable that other color resist materials can be added or replaced with other color resist materials according to actual needs, such as yellow color resist materials.
  • the infrared light-transmitting layer 30 includes a stacked blue color-resist layer and a red color-resist layer, or includes a stacked red color-resist layer and a green color-resist layer, or includes a stacked blue color-resist layer and a green color-resist layer.
  • the first light-shielding layer 40 includes a first color-blocking light-shielding layer 41, a second color-blocking light-shielding layer 42, and a third color-blocking light-shielding layer 43 stacked and having different colors.
  • the materials of the first color-blocking light-shielding layer 41, the second color-blocking light-shielding layer 42, and the third color-blocking light-shielding layer 43 are the same as the materials of the first color-blocking layer 31 and the second color-blocking layer 32 and are arranged in the same layer.
  • the first color-blocking light-shielding layer 41, the second color-blocking light-shielding layer 42, and the third color-blocking light-shielding layer 43 are respectively one of a red color-shielding layer, a green color-shielding layer, and a blue color-shielding layer.
  • this embodiment uses red, green and blue light-blocking layers in a superimposed manner to perform light shielding, which can not only reduce the reflectivity difference between the first sub-light-shielding area 102 and the infrared light-transmitting area 101, but also achieve an effective light shielding effect.
  • the stacking order of the first color-blocking light-shielding layer 41, the second color-blocking light-shielding layer 42 and the third color-blocking light-shielding layer 43 is not limited.
  • the stacking order of the red color-blocking layer, the green color-blocking layer and the blue color-blocking layer is used as an example to illustrate the direction in which the second substrate 20 points to the first substrate 10.
  • the color resist stacking sequence of the first color resist layer 31 and the second color resist layer 32 may be the same as or different from the color resist stacking sequence of the first light shielding layer 40.
  • the same color resist stacking sequence is selected, so that the color resist layers of the same color in different regions can be formed by one patterning process, which can save the manufacturing process.
  • the liquid crystal display device 100 further includes a filter layer 50 disposed on the second substrate 20 near the first substrate 10, and the filter layer 50 includes a plurality of color resist blocks 51 of different colors, and the color resist blocks 51 include a red color resist block, a green color resist block, and a blue color resist block.
  • a black matrix is disposed between adjacent color resist blocks 51 to prevent light leakage between adjacent color resist blocks 51.
  • the liquid crystal display device 100 further includes a second sub-light shielding area 104 surrounding the display area 103, and the second sub-light shielding area 104 is a frame area of the liquid crystal display device 100.
  • a fan-out wiring, a gate driving circuit, a source driving circuit, etc. are arranged on a side of the first substrate 10 of the second sub-light shielding area 104 close to the second substrate 20.
  • a second light shielding layer is provided on a side of the second substrate 20 close to the first substrate 10, and the second light shielding layer can be a black matrix.
  • the black matrix of this embodiment adopts a black matrix material with low reflectivity, and the reflectivity of the black matrix is less than 6.5%, specifically 4.5% to 5%. Compared with the reflectivity of a conventional black matrix (6.5%), the reflectivity of the black matrix of this embodiment can be reduced by 0.15% to 0.2%.
  • the material of the black matrix includes black porous titanium dioxide particles, which have a high porosity and a good diffuse reflection effect on light. The reflectivity of the black matrix can be reduced by doping the black porous titanium dioxide particles in the black matrix.
  • the material of the black matrix may also include at least one of a black pigment and a black dye, such as a black acrylic resin.
  • a planarization layer 110 is disposed on the surfaces of the infrared light-transmitting layer 30, the first light-shielding layer 40, and the second light-shielding layer away from the second substrate 20 for subsequent formation.
  • the formed film layer (such as the common electrode) provides a flat surface.
  • FIG. 6 is a schematic diagram of a second structure of a liquid crystal display device provided in the present application.
  • the structure of the liquid crystal display device 100 in this embodiment is similar to the first structure of the liquid crystal display device 100 provided in the above embodiment. Please refer to the description of the first structure of the liquid crystal display device 100 in the above embodiment for details, which will not be repeated here.
  • the infrared transparent layer 30 includes a first color resist layer 31, a second color resist layer 32 and a third color resist layer 33.
  • the color stacking sequence of the color blocks in the first color block light blocking layer 41, the second color block light blocking layer 42 and the third color block light blocking layer 43 is the same as the stacking sequence of the color blocks in the first color block layer 31, the second color block layer 32 and the third color block layer 33, so that the pattern of color blocks of the same color can be formed through one exposure process.
  • the stacking sequence of the red color block, the green color block and the blue color block is taken as an example.
  • the technical solution of this embodiment is described by taking the red color resist film thickness of 2.24 microns, the green color resist film thickness of 2.18 microns, and the blue color resist film thickness of 2.46 microns in the display area 103, the infrared transparent area 101, and the first sub-light shielding area 102 as an example.
  • This embodiment tests the reflectivity of three regions of the liquid crystal display device 100 before and after improvement, wherein the liquid crystal display device 100 of the exemplary technology adopts the structure of the display device in Figure 1.
  • the light source used in the test is the D65 standard light source, Y represents the reflectivity, and L represents the reflection brightness.
  • the first light shielding layer 40 of the first sub-light shielding area 102 of this embodiment adopts a stacked red color resist layer, a green color resist layer and a blue color resist layer.
  • its reflectivity is reduced from 5.8% to 4.9% to 5.1%. Its reflectivity is closer to the reflectivity of the infrared light-transmitting area 101, which can effectively improve the integrated black effect of the liquid crystal display device.
  • the black matrix of the display area 103 of this embodiment adopts a low-reflectivity material.
  • the reflectivity of the display area 103 of this embodiment is The reflectivity thereof is closer to the infrared light transmitting area 101, and the integrated black effect of the liquid crystal display device is further improved.
  • This embodiment also analyzes the transmittance (band in the range of
  • the transmittance of the light shielding layer of the liquid crystal display device before improvement was 1 ⁇ 10 -5.4
  • the transmittance of the light shielding layer of the liquid crystal display device after improvement was 8.07 ⁇ 10 -3 (the transmittances of the red, green and blue blocking layers were multiplied to obtain the red color blocking transmittance of 0.171, the green color blocking transmittance of 0.560, and the blue color blocking transmittance of 0.084).
  • the transmittance of the light shielding layer of the improved liquid crystal device has increased, the effect on the light shielding performance can be ignored. Therefore, the liquid crystal display device provided in this embodiment has a good integrated black effect, and its first sub-light shielding area 102 has a good light shielding effect.
  • the second light-shielding layer 120 of the second sub-light-shielding area 104 of this embodiment includes a fourth color-blocking light-shielding layer 121, a fifth color-blocking light-shielding layer 122, and a sixth color-blocking light-shielding layer 123 stacked and having different colors.
  • the fourth color-blocking light-shielding layer 121, the fifth color-blocking light-shielding layer 122, and the sixth color-blocking light-shielding layer 123 include the same material as the color-blocking block 51 of the display area 103.
  • the fourth color-blocking light-shielding layer 121 is one of a red color-blocking layer, a green color-blocking layer, and a blue color-blocking layer
  • the fifth color-blocking light-shielding layer 122 and the sixth color-blocking light-shielding layer 123 are the other two of a red color-blocking layer, a green color-blocking layer, and a blue color-blocking layer.
  • FIG. 7 is a test diagram of the integrated black effect of the liquid crystal display device in the off state when the second light shielding layer of the second sub-light shielding area 104 in the exemplary technology adopts a black matrix structure.
  • a horizontal bright line L appears at the lighting position, resulting in a high reflectivity, and the position of the horizontal bright line is located in the second light shielding layer of the second sub-light shielding area 104.
  • the second light shielding layer uses a black matrix to shield light, resulting in a poor integrated black effect between the second sub-light shielding area 104 and the display area 103.
  • the second light-shielding layer 120 is configured as a stacked red color-resist layer, a green color-resist layer, and a blue color-resist layer, so that the reflectivity difference between the second sub-light-shielding area 104 and the display area 103 can be reduced, and the integrated black effect of the liquid crystal display device can be further improved.
  • a cover plate 80 is further provided on the side of the second substrate 20 facing away from the first substrate 10.
  • the cover plate 80 and the second substrate 20 are fully bonded together by an adhesive layer 90.
  • the adhesive layer 90 may be made of smoky OCA adhesive or smoky OCR adhesive to increase the reflectivity difference between the display area 103 and the second sub-shading area 104.
  • the cover plate 80 includes an ink area 105, the second sub-light shielding area 104 is located between the display area 103 and the ink area 105, and an ink layer is provided on a side of the cover plate 80 close to the second substrate 20, and the ink layer is located in the ink area 105.
  • the reflection color difference ⁇ E between the ink area 105 and the display area 103 can be made ⁇ 1, thereby improving the integrated black effect of the liquid crystal display device.
  • FIG. 8 is a schematic diagram of a third structure of the liquid crystal display device provided in the present application.
  • the structure of the liquid crystal display device of this embodiment is similar to the second structure of the liquid crystal display device provided in the above embodiment. Please refer to the description of the liquid crystal display device in the above embodiment for details. It will not be repeated here. The difference between the two is that in this embodiment, a black matrix block is provided in the first shading layer 40 and/or the second shading layer 120.
  • the first light-shielding layer 40 further includes a first black matrix block 44.
  • the stacked first color-block light-shielding layer 41, the second color-block light-shielding layer 42, and the third color-block light-shielding layer 43 constitute a first color-block stacking layer, the first color-block stacking layers are distributed in an array, and the first black matrix block 44 is disposed between adjacent first color-block stacking layers.
  • the light-shielding performance of the first sub-light-shielding area 102 can be improved while reducing the reflectivity difference between the first sub-light-shielding area 102 and the infrared light-transmitting area 101.
  • the overall film thickness of the first shading layer 40 in the first sub-shading area 102 near the display area 103 may be less than the overall film thickness of the first shading layer 40 in the first shading area 102 near the infrared transparent area 101.
  • the liquid crystal display device includes a display area 103 located between the infrared light-transmitting area 101 and the first sub-light-shielding area 102.
  • the liquid crystal display device includes a filter layer 50 arranged on the side of the second substrate 20 close to the first substrate 10.
  • the filter layer 50 is located in the display area 103.
  • the filter layer 50 includes a plurality of color resist blocks 51 of different colors, and a second black matrix block 52 located between adjacent color resist blocks 51.
  • the stacked fourth color-blocking light-shielding layer 121, the fifth color-blocking light-shielding layer 122, and the sixth color-blocking light-shielding layer 123 form a second color-blocking stack, and the second color-blocking stack is distributed in an array.
  • the second light-shielding layer 120 also includes the second color-blocking light-shielding layer 120 disposed adjacent to the The third black matrix blocks 124 between the second color-resist stack layers can reduce the reflectivity difference between the second sub-light-shielding area 104 and the display area 103 , while improving the light-shielding performance of the second sub-light-shielding area 104 .
  • FIG. 9 is a schematic diagram of a fourth structure of the liquid crystal display device provided in the present application.
  • the first light shielding layer 40 includes a first color block light shielding layer 41 and a second color block light shielding layer 42 which are stacked and have different colors, the first color block light shielding layer 41 and the second color block light shielding layer 42 constitute a first color block stacking layer, and the first light shielding layer 40 also includes a first black matrix block 44 which is arranged on the side of the first color block stacking layer close to the first substrate 10 and overlaps with the first color block stacking layer.
  • the first color block stacking layer can reduce the reflectivity of the first sub-light shielding area 102, but the stacking structure of the two layers of color blocks will cause the transmittance of the first sub-light shielding area 102 to increase, so the first black matrix block 44 can be arranged under the first color block stacking layer to reduce the transmittance of the light shielding area.
  • the material of the first color-blocking light-shielding layer 41 is the same as that of the first color-blocking layer 31
  • the material of the second color-blocking light-shielding layer 42 is the same as that of the second color-blocking layer 32
  • the first color-blocking light-shielding layer 41 and the second color-blocking light-shielding layer 42 are both selected from one of a red color-blocking layer, a green color-blocking layer and a blue color-blocking layer
  • the color-blocking colors of the first color-blocking light-shielding layer 41 and the second color-blocking light-shielding layer 42 are different.
  • the transmittance of the stacked color resist of red color resist and blue color resist is lower than the transmittance of other types of stacked color resist (such as the stacked color resist of red color resist and green color resist, and the stacked color resist of green color resist and blue color resist). Therefore, the first color resist light shielding layer 41 and the second color resist light shielding layer 42 can be selected from the red color resist layer and the blue color resist layer respectively.
  • the color resist colors of the first color resist layer 31 and the second color resist layer 32 are not limited and can be selected from any one of red, green and blue resist.
  • the second sub-light-shielding area 104 can also refer to the above design.
  • the second light-shielding layer 120 includes a fourth color-blocking light-shielding layer 121 and a fifth color-blocking light-shielding layer 122 stacked and having different colors, the fourth color-blocking light-shielding layer 121 and the fifth color-blocking light-shielding layer 122 forming a second color-blocking stack, and the second light-shielding layer 120 also includes a third black matrix block 124 disposed on the side of the second color-blocking stack close to the first substrate 10 and overlapping the second color-blocking stack.
  • the material of the fourth color-blocking light-shielding layer 121 is the same as that of the first color-blocking layer 31, the material of the fifth color-blocking light-shielding layer 122 is the same as that of the second color-blocking layer 32, and the fifth color-blocking light-shielding layer 122 is selected from one of a red color-blocking layer, a green color-blocking layer, and a blue color-blocking layer.
  • the color resists of the light shielding layer 121 and the fifth color resist light shielding layer 122 are different in color.
  • the design principle of the second light-shielding sub-region 104 is the same as the design principle of the first light-shielding sub-region 102 , and will not be described in detail here.
  • the present application also provides a vehicle-mounted monitoring device, including the liquid crystal display device in any of the above embodiments, and the vehicle-mounted monitoring device also includes a driver monitoring system, which includes but is not limited to a smoking monitoring unit, a phone call monitoring unit, a distracted driving monitoring unit, a seat belt unfastened monitoring unit, a water drinking monitoring unit, a yawning monitoring unit, an eye-closing monitoring unit, etc.
  • the driver status monitoring system collects infrared light information in the 940 ⁇ 10nm band according to the infrared photosensor, thereby realizing the monitoring function.
  • the present application provides a liquid crystal display device, including an infrared light-transmitting area 101 and a light-shielding area SA located outside the infrared light-transmitting area 101, the liquid crystal display device including a first substrate 10 and a second substrate 20 arranged opposite to each other; a backlight module 60 arranged on a side of the first substrate 10 away from the second substrate 20, an infrared sensor 70 arranged on a side of the backlight module 60 away from the first substrate 10, an infrared light-transmitting layer 30 arranged on a side of the second substrate 20 close to the first substrate 10, and a A first light-shielding layer 40 on one side, the infrared sensor 70 is located in the infrared light-transmitting area 101, the infrared light-transmitting layer 30 is located in the infrared light-transmitting area 101, the infrared light-transmitting layer 30 at least includes a first color-resistance layer 31 and a second color-re

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Abstract

一种液晶显示装置，包括红外透光区、遮光区、背光模组、红外传感器、红外透光层和第一遮光层，位于红外透光区的红外传感器和红外透光层，红外透光层包括层叠且颜色相异的第一色阻层和第二色阻层，第一遮光层位于遮光区，第一遮光层包括层叠且颜色相异的第一色阻遮光层和第二色阻遮光层。

Description

液晶显示装置及车载监控装置 技术领域
本申请涉及显示技术领域，尤其涉及一种液晶显示装置及车载监控装置。
背景技术
驾驶员状态监测系统(Driver Monitor System，DMS)主要用于驾驶员疲劳监测，伴随自动驾驶、车联网及相关技术逐渐的成熟逐渐演进和迭代出了更多功能；其中，考虑到对个人隐私的保护，需要尽量避免对人像在可见光范围内的直接采集，并尽量将传感器隐藏起来。
目前，常用的方法是使用主动式红外传感器(Infrared Sensor)，用于收集红外光信息，从而实现对驾驶员状态监控等功能，达到驾驶员状态监测系统的需求，同时，借鉴广泛应用于手机上的盲孔屏(Camera Under Panel，CUP)技术，将红外传感器集成在集群模块(Cluster Module)中，通过较好的一体黑效果来完成对传感器的隐藏。
然而，当红外光穿过盖板以及显示面板到达显示面板下方的红外传感器时，红外光的强度会有一定的损失，从而会对红外传感器的成像效果造成一定影响。在现有技术中，通过将显示面板中位于红外传感器上方的色阻层、黑色矩阵以及隔垫层去除，替换为颜色不同的多层叠层色阻，由于金属走线在经过红外传感器所在的区域时，采用绕线设计，避开在红外传感器所在的区域，该绕线所在的区域需要采用黑矩阵遮光，然而，该设计又会引出新的问题，即显示面板中红外传感器所在的区域与绕线所在的区域的反射率差异较大，影响显示面板一体黑的效果。
技术问题
本申请实施例提供一种液晶显示装置及车载监控装置，以解决现有的显示装置的一体黑效果不好的技术问题。
技术解决方案
本申请实施例提供一种液晶显示装置，包括红外透光区以及位于所述红外透光区之外的遮光区，所述液晶显示装置包括：
相对设置的第一基板和第二基板；
背光模组，设置于所述第一基板背离所述第二基板的一侧；
红外传感器，设置于所述背光模组背离所述第一基板的一侧，且位于所述红外透光区；
红外透光层，设置于所述第二基板和所述第一基板之间，且位于所述红外透光区，所述红外透光层至少包括层叠且颜色相异的第一色阻层31和第二色阻层；以及
第一遮光层，设置于所述第二基板和所述第一基板之间，且位于所述遮光区；其中，
所述第一遮光层包括层叠且颜色相异的第一色阻遮光层和第二色阻遮光层。
在本申请的一些实施例中，所述遮光区包括围绕所述红外透光区设置的第一子遮光区，所述液晶显示装置包括围绕所述第一子遮光区的显示区，所述第一遮光层设置于所述第一子遮光区之内；
所述第一基板与所述第一遮光层之间设置有位于所述第一子遮光区内的金属绕线段；
其中，所述金属绕线段在所述第一基板上的正投影位于所述第一遮光层在所述第一基板上的正投影之内。
在本申请的一些实施例中，所述第一遮光层包括第三色阻遮光层，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层颜色相异且层叠设置。
在本申请的一些实施例中，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层中的两者的材料分别与所述第一色阻层和所述第二色阻层的材料相同且同层设置，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层分别为红色色阻层、绿色色阻层以及蓝色色阻层中的一者。
在本申请的一些实施例中，所述红外透光层还包括第三色阻层，所述第一色阻层、所述第二色阻层以及所述第三色阻层颜色相异且层叠设置，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层中的色阻的颜色层 叠排序与所述第一色阻层、所述第二色阻层以及所述第三色阻层中的色阻颜色的层叠顺序相同。
在本申请的一些实施例中，层叠的所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层构成第一色阻叠层，所述第一色阻叠层呈阵列分布，所述第一遮光层还包括设置于相邻的所述第一色阻叠层之间的第一黑矩阵块。
在本申请的一些实施例中，所述第一色阻遮光层和所述第二色阻遮光层构成第一色阻叠层，所述第一遮光层还包括设置于所述第一色阻叠层靠近所述第一基板一侧且与所述第一色阻叠层重叠的第一黑矩阵块。
在本申请的一些实施例中，所述液晶显示装置包括位于所述红外透光区和所述第一子遮光区之间的显示区，所述液晶显示装置包括位于所述第二基板和所述第一基板之间的滤光层，所述滤光层位于所述显示区，所述滤光层包括颜色各异的多个色阻块，以及位于相邻色阻块之间的第二黑矩阵块。
在本申请的一些实施例中，所述液晶显示装置还包括位于所述红外透光区和所述第一子遮光区之间的显示区，所述遮光区还包括绕所述显示区设置的第二子遮光区，所述液晶显示装置包括设置于所述第二基板与所述第一基板之间的第二遮光层，所述第二遮光层位于所述第二子遮光区，所述第二遮光层包括层叠且颜色相异的第四色阻遮光层、第五色阻遮光层以及第六色阻遮光层。
在本申请的一些实施例中，层叠的所述第四色阻遮光层、第五色阻遮光层以及所述第六色阻遮光层形成第二色阻叠层，所述第二色阻叠层呈阵列分布，所述第二遮光层还包括设置于相邻的所述第二色阻叠层之间的第三黑矩阵块。
在本申请的一些实施例中，所述液晶显示装置还包括位于所述红外透光区和所述第一子遮光区之间的显示区，所述遮光区还包括绕所述显示区设置的第二子遮光区，所述液晶显示装置包括设置于所述第二基板与所述第一基板一侧的第二遮光层，所述第二遮光层位于所述第二子遮光区，其中，
所述第二遮光层包括层叠且颜色相异的第四色阻遮光层、第五色阻遮光层，所述第四色阻遮光层和所述第五色阻遮光层形成第二色阻叠层，所述第二遮光层还包括设置于所述第二色阻叠层靠近所述第一基板一侧且与所述第二色阻叠层重叠的第三黑矩阵块。
另一方面，本申请还提供一种车载监控装置，包括上述任一实施例所述的液晶显示装置。
有益效果
本申请提供一种液晶显示装置及车载监控装置，包括红外透光区以及位于所述红外透光区之外的遮光区，所述液晶显示装置包括相对设置的第一基板和第二基板；设置于所述第一基板背离所述第二基板的一侧的背光模组、设置于所述背光模组背离所述第一基板的一侧的红外传感器、设置于所述第二基板与所述第一基板的之间的红外透光层、第一遮光层，所述红外传感器位于所述红外透光区，所述红外透光层位于所述红外透光区，所述红外透光层包括层叠且颜色相异的第一色阻层和第二色阻层，所述第一遮光层位于所述遮光区，其中，所述第一遮光层包括层叠且颜色相异的第一色阻遮光层和第二色阻遮光层，从而降低遮光区与所述红外透光区之间的反射率差异，提高液晶显示装置的一体黑效果。
附图说明
图1为示例性技术中的液晶显示装置的部分结构示意图；
图2为图1中的液晶显示装置的部分区域的反射率测试结果图；
图3为本申请实施例提供的液晶显示装置的第一种结构示意图；
图4为本申请实施例提供的液晶显示装置的平面结构示意图；
图5为本申请实施例提供的液晶显示装置的信号线的部分结构示意图；
图6为本申请实施例提供的液晶显示装置的第二种结构示意图；
图7为示例性技术的液晶显示装置的另一部分区域的反射率测试结果图；
图8为本申请实施例提供的液晶显示装置的第三种结构示意图；
图9为本申请实施例提供的液晶显示装置的第四种结构示意图。
本申请的实施方式
下面将结合本申请实施例中的附图，对本申请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申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
目前，驾驶员状态监测系统(Driver Monitor System，DMS)主要用于驾驶员疲劳监测，常用的方法是利用主动式红外传感器，用于收集940±10nm波段的红外光信息，从而实现对驾驶员状态监控等功能，达到驾驶员状态监测系统的需求。
请参阅图1，图1为示例性的显示装置的部分结构示意图。
在一些示例性的技术中，车载监控装置包括驾驶员状态监测系统和液晶显示装置100，液晶显示装置100包括相对的第一基板10和第二基板20、夹设于第一基板10和第二基板20之间的液晶层、位于第一基板10背离第二基板20一侧的背光模组(图中未示出)，液晶显示装置100包括红外透光区101、显示区103以及位于红外透光区101和显示区103之间的第一子遮光区102。液晶显示装置100还包括红外传感器(图中未示出)，红外传感器设置于所述背光模组背离所述第一基板10的一侧，所述背光模组包括与红外透光区101对应的通孔，所述红外传感器与所述通孔对应。由于黑矩阵对940±10nm的红外波段的光透过率较低，因此将红外透光区101内的黑矩阵及平铺的红、绿、蓝色阻去除，在第二基板20靠近第一基板10的一侧的所述红外透光区101内设置红色色阻2、绿色色阻3以及蓝色色阻4叠加的RGB叠层色阻，RGB叠层色阻在940±10nm的红外波段具有较高的透过率，同时也能达到隐藏红外传感器的效果。由于第一基板10靠近所述第二基板20的一侧的红外透光区101内的金属走线需通过绕线设计布线在第一子遮光区102内，因此在第二基板20靠近第一基板10的一侧的所述第一子遮光区102内设置黑矩阵以遮挡下方的金属走线。
如图2所示，图2为采用上述设计的液晶显示装置100在关机时的一体黑效果的拍摄图。本申请的发明人发现，导致液晶显示装置100在关机时的一体黑效果不佳，第一子遮光区102相对于红外透光区101较亮的主要原因是此种 设计中的红外透光区101和第一子遮光区102之间的反射率差异较大。
请参阅图3和图4，本申请实施例提供一种液晶显示装置100。
所述液晶显示装置100包括红外透光区101和位于所述红外透光区101之外的遮光区SA，所述红外透光区101对940±10nm的红外波段的透过率较高(大于90％)，所述遮光区SA用于遮挡金属走线以及避免背光漏光。所述液晶显示装置100包括相对设置的第一基板10和第二基板20、设置于所述第一基板10背离所述第二基板20一侧的背光模组60、设置于所述背光模组60背离所述第一基板10一侧的红外传感器70、设置于所述第二基板20与所述第一基板10之间的红外透光层30，以及设置于所述第二基板20与所述第一基板10之间的第一遮光层40。
如图3所示，在一些实施例中，所述第一基板10可配置为阵列基板，所述第二基板20可配置为彩膜基板，所述红外透光层30和所述第一遮光层40可设置在第二基板20上，具体可设置于第二基板20面向所述第一基板10的一侧。在其他实施例中，所述液晶显示装置可为COA(Color Filter On Array，彩膜集成于阵列基板上)显示面板，所述红外透光层30和所述第一遮光层40可设置在第一基板10上，具体可设置于第一基板10面向所述第二基板20的一侧。
所述红外传感器70位于所述红外透光区101，用于收集红外光信息；所述红外透光层30位于所述红外透光区101，所述红外透光层30至少包括层叠且颜色相异的第一色阻层31和第二色阻层32，所述红外透光层30既对940±10nm红外波段的光具有较高的透过率，又具有较低的反射率；所述第一遮光层40位于所述遮光区SA，用于遮挡下方的第一基板10上设置的金属走线；其中，所述第一遮光层40包括层叠且颜色相异的第一色阻遮光层和第二色阻遮光层，从而降低遮光区SA与所述红外透光区101之间的反射率差异，提高液晶显示装置100的一体黑效果。
现结合具体实施例对本申请的技术方案进行描述。
请参阅图3，图3为本申请提供的液晶显示装置100的第一种结构示意图。
本实施例提供的液晶显示装置100，包括相对设置的第一基板10和第二基板20、位于所述第一基板10和所述第二基板20之间的液晶层(图中未示 出)，以及位于所述第一基板10背离所述第二基板20一侧的背光模组60。所述背光模组60包括但不限于背光源、导光板以及光学膜片。所述第一基板10靠近所述第二基板20的一侧设置有金属器件，如阵列分布的像素电路、以及多种信号线，像素电路包括但不限于栅极、有源层、源极和漏极等晶体管的器件，本实施例对此不做过多赘述，可参考现有的像素电路设计。
所述液晶显示装置100还包括设置于所述背光模组60背离所述第一基板10一侧的红外传感器70，所述红外传感器70用于收集940±10nm波段的红外光信息。所述背光模组60开设有与所述红外传感器70对应的开口，所述开口露出所述红外传感器70。
请参阅图4，所述液晶显示装置100包括红外透光区101、显示区103和遮光区SA，所述遮光区SA包括位于红外透光区101和显示区103之间的第一子遮光区102。所述第一子遮光区102围绕所述红外透光区101设置。所述红外透光区101以及所述第一子遮光区102不显示画面，所述显示区103用于显示画面，所述显示区103的面积远远大于所述红外透光区101的面积，以及大于所述第一子遮光区102的面积。
所述红外透光区101的形状包括但不限于为矩形、方形或圆形，本实施例以圆形为例进行说明。所述第一子遮光区102的形状可为环形。
所述液晶显示装置100还包括设置于所述第二基板20靠近所述第一基板10一侧的红外透光层30和第一遮光层40。所述红外传感器70以及所述红外透光层30位于所述红外透光区101，所述红外透光层30对于可见光的透过率较低，对于红外波段的光透过率较高(大于90％)。
所述第一基板10和所述第二基板20包括刚性基板或柔性基板，所述刚性基板可为透明的玻璃基板，所述柔性基板包括但不限于为透明的聚酰亚胺基板。
如图5所示，所述第一基板10靠近所述第二基板20的一侧设置有多条信号线130，包括但不限于栅线、数据线、电源线等。所述多条信号线130位于所述红外透光区101之外，以避免信号线130影响红外传感器70采集红外光信息。
显示区103会包围红外透光区101，而红外透光区101需要透光，因此所 述信号线130需要进行绕线设计，以规避所述红外透光区101。由此设计出第一子遮光区102以用于放置信号线1301的金属绕线段132，且金属绕线段132的下方设有背光模组，因此第一子遮光区102需要有效遮光以避免背光模组的漏光。
所述金属绕线段132设置于第一基板10和第一遮光层40之间，所述金属绕线段132在所述第一基板10上的正投影位于所述第一遮光层40在所述第一基板10上的正投影之内。
具体地，所述多条信号线130包括金属绕线段132和与所述金属绕线段132的两端分别电连接的金属直线段131，所述金属绕线段132位于所述第一子遮光区102，所述金属绕线段132的形状包括但不限于为弧状、折线状，所述金属绕线段132至少围绕所述红外透光区101的一部分设置。当所述红外透光区101为圆形时，所述金属绕线段132的形状优选为弧线；当所述红外透光区101形状的多边形，如方形、矩形时，所述金属绕线段132的形状优选为折线。
在本实施例中，所述红外透光层30包括层叠且颜色相异的第一色阻层31和第二色阻层32。
其中，所述第一色阻层31的材料包括但不限于为红色色阻材料、绿色色阻材料以及蓝色色阻材料中的一种，所述第二色阻层32的材料包括但不限于为红色色阻材料、绿色色阻材料以及蓝色色阻材料中的另一种。可以理解的是，可根据实际需求增加其他颜色的色阻材料或用其他颜色的色阻材料来替换上述色阻材料，如其他颜色的色阻材料可为黄色色阻材料等。
具体地，所述红外透光层30包括层叠的蓝色色阻层和红色色阻层，或包括层叠的红色色阻层和绿色色阻层，或包括层叠的蓝色色阻层和绿色色阻层。
所述第一遮光层40包括层叠且颜色相异的第一色阻遮光层41、第二色阻遮光层42以及第三色阻遮光层43，所述第一色阻遮光层41、所述第二色阻遮光层42以及所述第三色阻遮光层43中的两者的材料分别与所述第一色阻层31和所述第二色阻层32的材料相同并同层设置。具体地，所述第一色阻遮光层41、所述第二色阻遮光层42以及所述第三色阻遮光层43分别为红色色阻层、绿色色阻层、以及蓝色色阻层中的一者。相比于第一子遮光区采用黑矩阵 进行遮光，本实施例通过采用红、绿、蓝色阻遮光层叠加的方式进行遮光，不仅能够降低第一子遮光区102和红外透光区101之间的反射率差异，同时也能达到有效遮光的效果。
第一色阻遮光层41、第二色阻遮光层42以及第三色阻遮光层43的层叠顺序可不做限定，本实施例按照所述第二基板20指向第一基板10的方向，以红色色阻层、绿色色阻层以及蓝色色阻层的层叠顺序为例进行说明。
所述第一色阻层31和所述第二色阻层32的色阻层叠顺序可与所述第一遮光层40的色阻层叠顺序可相同，也可不同。优选地，选择相同的色阻层叠顺序，如此不同区域的同一颜色的色阻层可通过一道图案化工艺形成，可以节约制程。
所述液晶显示装置100还包括设置于所述第二基板20靠近所述第一基板10一侧的滤光层50，所述滤光层50包括颜色各异的多个色阻块51，所述色阻块51包括红色色阻块、绿色色阻块以及蓝色色阻块。相邻的色阻块51之间设有黑矩阵，以防止相邻的色阻块51之间漏光。
请参阅图3和图4，所述液晶显示装置100还包括围绕所述显示区103的第二子遮光区104，所述第二子遮光区104为所述液晶显示装置100的边框区。所述第二子遮光区104的第一基板10靠近所述第二基板20的一侧布置有扇出走线、栅极驱动电路以及源极驱动电路等。所述第二基板20靠近所述第一基板10的一侧设有第二遮光层，所述第二遮光层可为黑矩阵。
本实施例的所述黑矩阵采用低反射率的黑矩阵材料，所述黑矩阵的反射率小于6.5％，具体可为4.5％～5％。相比于常规的黑矩阵的反射率(6.5％)，本实施例的所述黑矩阵的反射率可降低0.15％～0.2％。具体地，所述黑矩阵的材料包括黑色多孔二氧化钛粒子，黑色多孔二氧化钛粒子的孔隙率高，对光具有很好的漫反射效果，通过在黑矩阵中掺杂黑色多孔二氧化钛粒子可降低黑矩阵的反射率。所述黑矩阵的材料还可包括黑色颜料、黑色染料中的至少一种，如黑色丙烯酸树脂。
请参阅图3，由于设置在第二基板20上的红外透光层30、第一遮光层40、第二遮光层的膜厚可能不一，因此在所述红外透光层30、所述第一遮光层40、所述第二遮光层背离所述第二基板20的表面设置有平坦化层110，为后续形 成的膜层(如公共电极)提供一个平坦的表面。
请参阅图6，图6为本申请提供的液晶显示装置的第二种结构示意图。
本实施例中的液晶显示装置100的结构与上述实施例所提供的液晶显示装置100的第一种结构相似，具体请参照上述实施例中的液晶显示装置100的第一种结构的描述，此处不再赘述，两者的一个区别在于在本实施例中，所述红外透光层30包括第一色阻层31、第二色阻层32以及所第三色阻层33。
进一步地，所述第一色阻遮光层41、所述第二色阻遮光层42以及第三色阻遮光层43中的色阻的颜色层叠排序与所述第一色阻层31、所述第二色阻层32以及所述第三色阻层33中的色阻颜色的层叠顺序相同，如此，同一颜色的色阻的图案可经过一道曝光工艺形成。本实施例中，按照沿第二基板20指向第一基板10的方向，以红色色阻、绿色色阻以及蓝色色阻的层叠顺序为例。
本实施例中的显示区103、红外透光区101以及第一子遮光区102中的红色色阻膜厚为2.24微米，绿色色阻膜厚为2.18微米，蓝色色阻为2.46微米为例对本实施例的技术方案进行说明。
请参阅下表1，本实施例对液晶显示装置100改善前后的三个区域的反射率进行了测试，其中，示例性技术的液晶显示装置100采用图1中的显示装置的结构。测试用到的光源为D65标准光源，Y代表反射率，L代表反射亮度。
表1
结合表1可知，本实施例的第一子遮光区102的第一遮光层40采用叠层的红色色阻层、绿色色阻层以及蓝色色阻层，相比于采用黑矩阵来遮光，其反射率从5.8％下降至4.9％～5.1％，其反射率更接近于红外透光区101的反射率，可有效提升液晶显示装置的一体黑效果。此外，本实施例的显示区103的黑矩阵采用低反射率的材料，相比于常规黑矩阵，本实施例的显示区103的反射率 也有所下降，其反射率也更接近于红外透光区101，液晶显示装置的一体黑效果进一步得到提升。
本实施例还对液晶显示装置该改善前后的遮光层的透过率(波段在
380～780nm的光)进行了测试，改善前的液晶显示装置的遮光层的透过率为1×10-5.4，改善后的液晶显示装置的遮光层的透过率为8.07×10-3(红、绿、蓝色阻层的透过率相乘得到，红色色阻透过率0.171，绿色色阻透过率0.560，蓝色色阻透过率0.084)，虽然改善后的液晶装置的遮光层的透过率有所上升，但对于遮光性能的影响可忽略不计。因此本实施例提供的液晶显示装置，既具有较好的一体黑效果，其第一子遮光区102又具有良好的遮光效果。
本实施例的液晶显示装置的结构与前述实施例的液晶显示装置的第一种结构的另一个区别在于，本实施例的第二子遮光区104的第二遮光层120包括层叠且颜色相异的第四色阻遮光层121、第五色阻遮光层122以及第六色阻遮光层123。所述第四色阻遮光层121、所述第五色阻遮光层122以及所述第六色阻遮光层123包括与所述显示区103的色阻块51的材料相同的材料。具体地，所述第四色阻遮光层121分别为红色色阻层、绿色色阻层以及蓝色色阻层中的一者，所述第五色阻遮光层122以及所述第六色阻遮光层123分别为红色色阻层、绿色色阻层以及蓝色色阻层中的另外两者。
请参阅图7，图7为示例性技术中第二子遮光区104的第二遮光层采用黑矩阵结构时的液晶显示装置在关机状态下的一体黑效果测试图。从图7可看出，打灯位置出现一条水平亮线L，导致反射率高，该水平亮线位置处于第二子遮光区104的第二遮光层。原因是由于所述第二遮光层采用黑矩阵来遮光，导致第二子遮光区104与显示区103之间的一体黑效果不好。
本实施例通过将第二遮光层120设置为叠层的红色色阻层、绿色色阻层、蓝色色阻层，如此可降低第二子遮光区104和显示区103之间的反射率差异，进一步提升液晶显示装置的一体黑效果。
本实施例的第二基板20背离所述第一基板10的一侧还设置有盖板80。所述盖板80与所述第二基板20通过胶层90全贴合。所述胶层90可选用烟熏色OCA胶或烟熏色OCR胶，以提高显示区103和第二子遮光区104之间的反射率差异。
所述盖板80包括油墨区105，所述第二子遮光区104位于所述显示区103和所述油墨区105之间，所述盖板80靠近所述第二基板20的一侧设有油墨层，所述油墨层位于所述油墨区105内。通过调节所述油墨层的油墨颜色和透过率名可以使得油墨区105和显示区103之间的反射色差△E≤1，提升液晶显示装置的一体黑效果。
请参阅图8，图8为本申请提供的液晶显示装置的第三种结构示意图。
本实施例的液晶显示装置的结构与上述实施例所提供的液晶显示装置的第二种结构相似，具体请参照上述实施例中的液晶显示装置的描述，此处不再赘述，两者的区别在于在本实施例中，所述第一遮光层40和/或所述第二遮光层120中设有黑矩阵块。
如图8所示，具体地，在本实施例中，所述第一遮光层40还包括第一黑矩阵块44。层叠的所述第一色阻遮光层41、所述第二色阻遮光层42以及所述第三色阻遮光层43构成第一色阻叠层，所述第一色阻叠层成阵列分布，所述第一黑矩阵块44设置于相邻的所述第一色阻叠层之间。通过在第一色阻叠层之间设置第一黑矩阵块44，可在降低第一子遮光区102和红外透光区101之间的反射率差异的同时，提高第一子遮光区102的遮光性能。
由于所述第一子遮光区102内的靠近所述显示区的绕线金属密度大于靠近所述红外透光区101的绕线金属密度，绕线金属密度大的区域的遮光需求会更低，因此，在其他实施例中，第一子遮光区102靠近所述显示区103的第一遮光层40的整体膜厚可小于第一遮光区102靠近所述红外透光区101的第一遮光层40的整体膜厚。
所述液晶显示装置包括位于所述红外透光区101和所述第一子遮光区102之间的显示区103，所述液晶显示装置包括设置于所述第二基板20靠近所述第一基板10一侧的滤光层50，所述滤光层50位于所述显示区103，所述滤光层50包括颜色各异的多个色阻块51，以及位于相邻色阻块51之间的第二黑矩阵块52。
本实施例中，在所述第二子遮光区104中，层叠的所述第四色阻遮光层121、第五色阻遮光层122以及所述第六色阻遮光层123形成第二色阻叠层，所述第二色阻叠层呈阵列分布，所述第二遮光层120还包括设置于相邻的所述 第二色阻叠层之间的第三黑矩阵块124，可在降低第二子遮光区104和显示区103之间的反射率差异的同时，提高第二子遮光区104的遮光性能。
请参阅图9，图9为本申请提供的液晶显示装置的第四种结构示意图。
与图8所示的液晶显示装置的第三种结构不同的是，所述第一遮光层40包括层叠且颜色相异的第一色阻遮光层41和第二色阻遮光层42，所述第一色阻遮光层41和所述第二色阻42遮光层构成第一色阻叠层，所述第一遮光层40还包括设置于所述第一色阻叠层靠近所述第一基板10一侧且与所述第一色阻叠层重叠的第一黑矩阵块44。所述第一色阻叠层可起到降低第一子遮光区102的反射率作用，但两层色阻的叠层结构会导致所述第一子遮光区102的透过率上升，因此可子啊所述第一色阻叠层下方设置第一黑矩阵块44以起到降低所述遮光区透过率的作用。
可选地，所述第一色阻遮光层41的材料与所述第一色阻层31的材料相同，所述第二色阻遮光层42的材料与所述第二色阻层32的材料相同，所述第一色阻遮光层41和所述第二色阻遮光层42均选自红色色阻层、绿色色阻层以及蓝色色阻层中的一者，且第一色阻遮光层41和所述第二色阻遮光层42的色阻颜色不同。
红色色阻与蓝色色阻的叠层色阻的透过性低于其他类型的叠层色阻(如红色色阻与绿色色阻的叠层色阻、绿色色阻与蓝色色阻的叠层色阻)的透过率，因此，第一色阻遮光层41和第二色阻遮光层42可分别选自红色色阻层和蓝色色阻层。第一色阻层31和第二色阻层32的色阻颜色可不做限制，可选自红、绿、蓝色阻中的任意一种。
如图9所示，此外，所述第二子遮光区104也可参考上述设计。具体地，所述第二遮光层120包括层叠且颜色相异的第四色阻遮光层121、第五色阻遮光层122，所述第四色阻遮光层121和所述第五色阻遮光层122形成第二色阻叠层，所述第二遮光层120还包括设置于所述第二色阻叠层靠近所述第一基板10一侧且与所述第二色阻叠层重叠的第三黑矩阵块124。
所述第四色阻遮光层121的材料与所述第一色阻层31的材料相同，所述第五色阻遮光层122与所述第二色阻层32的材料相同，所述第五色阻遮光层122均选自红色色阻层、绿色色阻层以及蓝色色阻层中的一者，所述第四色阻 遮光层121和所述第五色阻遮光层122的色阻颜色不同。
所述第二子遮光区104的设计原理与上述第一子遮光区102的设计原理相同，这里不再赘述。
本申请还提供一种车载监控装置，包括上述任一实施例中的液晶显示装置，所述车载监控装置还包括驾驶员监测系统，所述驾驶员监测系统包括但不限于抽烟监测单元、接打电话监测单元、分心驾驶监测单元、未系安全带监测单元、喝水监测单元、打哈欠监测单元、闭眼监测单元等。所述驾驶员状态监测系统根据所述红外感光传感器收集940±10nm波段的红外光信息，从而实现监控功能。
综上，本申请提供一种液晶显示装置，包括红外透光区101以及位于所述红外透光区101之外的遮光区SA，所述液晶显示装置包括、相对设置的第一基板10和第二基板20；设置于所述第一基板10背离所述第二基板20的一侧的背光模组60、设置于所述背光模组60背离所述第一基板10的一侧的红外传感器70、设置于所述第二基板20靠近所述第一基板10的一侧的红外透光层30，以及设置于所述第二基板20靠近所述第一基板10的一侧的第一遮光层40，所述红外传感器70位于所述红外透光区101，所述红外透光层30位于所述红外透光区101，所述红外透光层30至少包括层叠且颜色相异的第一色阻层31和第二色阻层32，所述第一遮光层40位于所述遮光区SA，其中，所述第一遮光层40包括与所述第一色阻层31的材料和所述第二色阻层32的材料相同的色阻叠层，从而降低遮光区SA与所述红外透光区101之间的反射率差异，提高液晶显示装置的一体黑效果。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的一种液晶显示装置及车载监控装置进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种液晶显示装置，其中，包括红外透光区以及位于所述红外透光区之外的遮光区，所述液晶显示装置包括：
    相对设置的第一基板和第二基板；
    背光模组，设置于所述第一基板背离所述第二基板的一侧；
    红外传感器，设置于所述背光模组背离所述第一基板的一侧，且位于所述红外透光区；
    红外透光层，设置于所述第二基板和所述第一基板之间，且位于所述红外透光区，所述红外透光层包括层叠且颜色相异的第一色阻层和第二色阻层；以及
    第一遮光层，设置于所述第二基板和所述第一基板之间，且位于所述遮光区；其中，
    所述第一遮光层包括层叠且颜色相异的第一色阻遮光层和第二色阻遮光层。
  2. 根据权利要求1所述的液晶显示装置，其中，所述遮光区包括围绕所述红外透光区设置的第一子遮光区，所述液晶显示装置包括围绕所述第一子遮光区的显示区，所述第一遮光层设置于所述第一子遮光区之内；
    所述第一基板与所述第一遮光层之间设置有位于所述第一子遮光区内的金属绕线段；
    其中，所述金属绕线段在所述第一基板上的正投影位于所述第一遮光层在所述第一基板上的正投影之内。
  3. 根据权利要求2所述的液晶显示装置，其中，所述第一遮光层还包括第三色阻遮光层，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层颜色相异且层叠设置。
  4. 根据权利要求3所述的液晶显示装置，其中，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层中的两者的材料分别与所述第一色阻层和所述第二色阻层的材料相同且同层设置，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层分别为红色色阻层、绿色色阻层以及蓝色色阻层中的一者。
  5. 根据权利要求3所述的液晶显示装置，其中，所述红外透光层还包括第三色阻层，且所述第一色阻层、所述第二色阻层以及所述第三色阻层颜色相异并层叠设置，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层中的色阻的颜色层叠排序与所述第一色阻层、所述第二色阻层以及所述第三色阻层中的色阻颜色的层叠顺序相同。
  6. 根据权利要求3所述的液晶显示装置，其中，层叠的所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层构成第一色阻叠层，所述第一色阻叠层呈阵列分布，所述第一遮光层还包括设置于相邻的所述第一色阻叠层之间的第一黑矩阵块。
  7. 根据权利要求2所述的液晶显示装置，其中，所述第一色阻遮光层和所述第二色阻遮光层构成第一色阻叠层，所述第一遮光层还包括设置于所述第一色阻叠层靠近所述第一基板一侧且与所述第一色阻叠层重叠的第一黑矩阵块。
  8. 根据权利要求7所述的液晶显示装置，其中，所述液晶显示装置包括位于所述红外透光区和所述第一子遮光区之间的显示区，所述液晶显示装置包括位于所述第二基板和所述第一基板之间的滤光层，所述滤光层位于所述显示区，所述滤光层包括颜色各异的多个色阻块，以及位于相邻色阻块之间的第二黑矩阵块。
  9. 根据权利要求2所述的液晶显示装置，其中，所述液晶显示装置还包括位于所述红外透光区和所述第一子遮光区之间的显示区，所述遮光区还包括绕所述显示区设置的第二子遮光区，所述液晶显示装置包括设置于所述第二基板与所述第一基板之间的第二遮光层，所述第二遮光层位于所述第二子遮光区，所述第二遮光层包括层叠且颜色相异的第四色阻遮光层、第五色阻遮光层以及第六色阻遮光层。
  10. 根据权利要求9所述的液晶显示装置，其中，层叠的所述第四色阻遮光层、第五色阻遮光层以及所述第六色阻遮光层形成第二色阻叠层，所述第二色阻叠层呈阵列分布，所述第二遮光层还包括设置于相邻的所述第二色阻叠层之间的第三黑矩阵块。
  11. 根据权利要求2所述的液晶显示装置，其中，所述液晶显示装置还包 括位于所述红外透光区和所述第一子遮光区之间的显示区，所述遮光区还包括绕所述显示区设置的第二子遮光区，所述液晶显示装置包括设置于所述第二基板与所述第一基板一侧的第二遮光层，所述第二遮光层位于所述第二子遮光区，其中，
    所述第二遮光层包括层叠且颜色相异的第四色阻遮光层、第五色阻遮光层，所述第四色阻遮光层和所述第五色阻遮光层形成第二色阻叠层，所述第二遮光层还包括设置于所述第二色阻叠层靠近所述第一基板一侧且与所述第二色阻叠层重叠的第三黑矩阵块。
  12. 一种车载监控装置，其中，包括液晶显示装置，所述液晶显示装置包括红外透光区和位于红外透光区之外的遮光区，所述液晶显示装置包括：
    相对设置的第一基板和第二基板；
    背光模组，设置于所述第一基板背离所述第二基板的一侧；
    红外传感器，设置于所述背光模组背离所述第一基板的一侧，且位于所述红外透光区；
    红外透光层，设置于所述第二基板和所述第一基板之间，且位于所述红外透光区，所述红外透光层包括层叠且颜色相异的第一色阻层和第二色阻层；以及
    第一遮光层，设置于所述第二基板和所述第一基板之间，且位于所述遮光区；其中，
    所述第一遮光层包括层叠且颜色相异的第一色阻遮光层和第二色阻遮光层。
  13. 根据权利要求12所述的车载监控装置，其中，所述遮光区包括围绕所述红外透光区设置的第一子遮光区，所述液晶显示装置包括围绕所述第一子遮光区的显示区，所述第一遮光层设置于所述第一子遮光区之内；
    所述第一基板与所述第一遮光层之间设置有位于所述第一子遮光区内的金属绕线段；
    其中，所述金属绕线段在所述第一基板上的正投影位于所述第一遮光层在所述第一基板上的正投影之内。
  14. 根据权利要求13所述的车载监控装置，其中，所述第一遮光层还包 括第三色阻遮光层，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层颜色相异且层叠设置。
  15. 根据权利要求14所述的车载显示装置，其中，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层中的两者的材料分别与所述第一色阻层和所述第二色阻层的材料相同且同层设置，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层分别为红色色阻层、绿色色阻层以及蓝色色阻层中的一者。
  16. 根据权利要求14所述的车载显示装置，其中，所述红外透光层还包括第三色阻层，且所述第一色阻层、所述第二色阻层以及所述第三色阻层颜色相异并层叠设置，所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层中的色阻的颜色层叠排序与所述第一色阻层、所述第二色阻层以及所述第三色阻层中的色阻颜色的层叠顺序相同。
  17. 根据权利要求14所述的车载显示装置，其中，层叠的所述第一色阻遮光层、所述第二色阻遮光层以及所述第三色阻遮光层构成第一色阻叠层，所述第一色阻叠层呈阵列分布，所述第一遮光层还包括设置于相邻的所述第一色阻叠层之间的第一黑矩阵块。
  18. 根据权利要求13所述的车载显示装置，其中，所述第一色阻遮光层和所述第二色阻遮光层构成第一色阻叠层，所述第一遮光层还包括设置于所述第一色阻叠层靠近所述第一基板一侧且与所述第一色阻叠层重叠的第一黑矩阵块。
  19. 根据权利要求18所述的车载显示装置，其中，所述液晶显示装置包括位于所述红外透光区和所述第一子遮光区之间的显示区，所述液晶显示装置包括位于所述第二基板和所述第一基板之间的滤光层，所述滤光层位于所述显示区，所述滤光层包括颜色各异的多个色阻块，以及位于相邻色阻块之间的第二黑矩阵块。
  20. 根据权利要求13所述的车载显示装置，其中，所述液晶显示装置还包括位于所述红外透光区和所述第一子遮光区之间的显示区，所述遮光区还包括绕所述显示区设置的第二子遮光区，所述液晶显示装置包括设置于所述第二基板与所述第一基板之间的第二遮光层，所述第二遮光层位于所述第二子遮光 区，所述第二遮光层包括层叠且颜色相异的第四色阻遮光层、第五色阻遮光层以及第六色阻遮光层。
PCT/CN2023/104700 2023-06-15 2023-06-30 液晶显示装置及车载监控装置 Ceased WO2024254917A1 (zh)

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