WO2020249072A1 - 液晶显示屏及移动终端 - Google Patents

液晶显示屏及移动终端 Download PDF

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Publication number
WO2020249072A1
WO2020249072A1 PCT/CN2020/095781 CN2020095781W WO2020249072A1 WO 2020249072 A1 WO2020249072 A1 WO 2020249072A1 CN 2020095781 W CN2020095781 W CN 2020095781W WO 2020249072 A1 WO2020249072 A1 WO 2020249072A1
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WIPO (PCT)
Prior art keywords
light
liquid crystal
hole
holes
crystal display
Prior art date
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/CN2020/095781
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English (en)
French (fr)
Inventor
严斌
毛春程
尹帮实
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2020249072A1 publication Critical patent/WO2020249072A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B29/00—Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects

Definitions

  • the present invention relates to the technical field of terminal equipment, in particular to a liquid crystal display screen and a mobile terminal.
  • the screen-to-body ratio refers to the relative ratio of the screen area to the area of the front cover of the mobile phone.
  • a mobile phone with a large screen-to-body ratio has excellent visual effects and operating experience, so it is more likely to be favored by users.
  • Liu Haiping refers to the notch on the top of the screen for installing the front camera and other optical devices. Liu Haier is named after.
  • a perforated screen has appeared in recent years. The perforated screen is an opening used to place optical devices such as the front camera on the screen of the mobile phone. Compared with Liu Haiping, the perforated screen can Further increase the screen-to-body ratio.
  • the embodiments of the present invention provide a liquid crystal display screen and a mobile terminal, so that optical devices can be arranged in the openings of the liquid crystal display screen, and at the same time, dark shadows on one side of the elongated hole can be avoided when the liquid crystal display screen displays.
  • an embodiment of the present invention provides a liquid crystal display, including a liquid crystal panel and a backlight source arranged on the back of the liquid crystal panel, wherein: at least two first transparent lenses are arranged in a set area of the liquid crystal panel.
  • Light holes the backlight is provided with at least two second light holes, the second light holes correspond to the first light holes one-to-one, the first light holes and the second light holes.
  • the light-transmitting hole is used for passing the light collected by the optical device, and the backlight source passes through the area between the adjacent second light-transmitting holes.
  • the liquid crystal display screen provided by the embodiment of the present invention, at least two first light transmission holes are provided in the liquid crystal panel, and at least two second light transmission holes corresponding to the first light transmission holes are provided in the backlight source.
  • the area between the adjacent second light-transmitting holes in the backlight is reserved, so that when the backlight source emits light, the backlight between the adjacent second light-transmitting holes has the backlight passing through, which can be a liquid crystal panel
  • Backlight is provided in the area corresponding to the backlight source located between the adjacent second light transmission holes, so that the area between the adjacent first light transmission holes in the liquid crystal panel can also be displayed together with other areas of the liquid crystal panel Therefore, it is possible to prevent dark shadows from appearing on one side of the first light-transmitting hole when the liquid crystal display is displayed, thereby improving the display effect of the liquid crystal display.
  • an embodiment of the present invention provides a mobile terminal including the liquid crystal display screen described in the first aspect. Since the mobile terminal includes the liquid crystal display screen described in the above first aspect, the mobile terminal also has the advantages of the liquid crystal display screen described above. For details, please refer to the above description and will not be repeated here.
  • FIG. 1 is a front view of a liquid crystal panel provided by an embodiment of the present invention
  • Figure 2 is an enlarged view of area A in Figure 1;
  • Figure 3 is a cross-sectional view of Figure 2;
  • FIG. 5 is a schematic diagram of a structure in which three first light-transmitting holes are provided in the liquid crystal panel
  • FIG. 6 is a schematic structural view of two first light-transmitting holes provided in the liquid crystal panel
  • FIG. 7 is a schematic structural diagram of a liquid crystal panel provided by an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of the structure of the first polarizer in FIG. 7;
  • FIG. 9 is a schematic diagram of the structure of the first light shielding ring in FIG. 7;
  • FIG. 10 is a schematic structural diagram of another liquid crystal panel provided by an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of the structure of the first polarizer in FIG. 10;
  • FIG. 12 is a schematic diagram of the structure of the first light shielding ring in FIG. 10;
  • FIG. 13 is a schematic diagram of a pixel unit remaining between two adjacent first light transmission holes in FIG. 2;
  • FIG. 14 is a schematic diagram of the pixel unit in area B in FIG. 13 when the pixel unit is closed;
  • FIG. 15 is a schematic diagram of the pixel unit in area B in FIG. 13 when the pixel unit is lit;
  • FIG. 16 is a schematic diagram when a special image is set in area B in FIG. 13;
  • FIG. 17 is a wiring diagram of signal wiring when no display is performed between two adjacent first light-transmitting holes
  • FIG. 18 is a wiring diagram of signal wiring when displaying between two adjacent first light-transmitting holes
  • Figure 19 is an exploded view of the backlight
  • FIG. 20 is a schematic diagram of the structure of the light guide plate in FIG. 19;
  • FIG. 21 is a schematic structural diagram of a light guide plate in a liquid crystal display screen with elongated holes
  • Figure 22 is a cross-sectional view of the backlight
  • Figure 23 is a diagram of a connection mode of the LCD panel and the backlight
  • FIG. 24 is a schematic diagram of a structure of the second light shielding ring in FIG. 23;
  • FIG. 25 is a schematic diagram of another structure of the second light shielding ring in FIG. 23;
  • FIG. 26 is a diagram of a positional relationship between the second light shielding ring and the first light transmission hole in FIG. 23;
  • FIG. 27 is another positional relationship diagram between the second light shielding ring and the first light transmission hole in FIG. 23;
  • Figure 28 is a diagram of another connection mode of the liquid crystal panel and the backlight
  • Figure 29 is a structural diagram of a liquid crystal display including a bracket
  • FIG. 30 is a schematic diagram of the structure of the liquid crystal display including two brackets
  • FIG. 31 is a schematic structural diagram of an infrared lamp provided in the liquid crystal display screen provided by an embodiment of the present invention.
  • FIG. 32 is a schematic diagram of another structure provided with an infrared lamp in a liquid crystal display screen provided by an embodiment of the present invention.
  • Figure 33 is a diagram of an arrangement of two optical devices
  • Figure 34 is a diagram of another arrangement of two optical devices
  • Figure 35 is a diagram of another arrangement of two optical devices.
  • 16a first polarizer
  • 161 second through hole
  • 162 elongated hole
  • 16b second polarizer
  • 17 transparent cover plate
  • 18 first shading ring
  • the embodiment of the present invention improves the perforation solution in the liquid crystal display screen.
  • a plurality of light-transmitting holes are provided in the liquid crystal display screen to accommodate an appropriate number of optical devices to ensure the imaging function of the mobile terminal. The part of the backlight source between the light holes is retained, so that the backlight source located between the adjacent light holes can still pass through, which can prevent the dark shadow area on the side of the light hole and prevent the LCD screen.
  • a dark shadow appears at the position of the light-transmitting hole during display, which improves the display effect of the LCD screen.
  • the liquid crystal display provided by the embodiment of the present invention includes a liquid crystal panel 10 and a backlight source 20.
  • the liquid crystal panel 10 is a device that realizes display by controlling the deflection of liquid crystal molecules, and the liquid crystal panel 10 does not emit light. Therefore, in order to realize the display function, it usually needs to be used in conjunction with the backlight source 20, and the backlight source 20 is arranged on the back of the liquid crystal panel 10 to provide backlight for the liquid crystal panel 10.
  • the set area of the liquid crystal panel 10 is provided with at least two first light-transmitting holes 11, and each first light-transmitting hole 11 may be a through hole penetrating the liquid crystal panel 10 or through
  • the set area of 10 is transparentized to obtain a light-transmitting area through which visible light and/or infrared light can pass. It can also be that at least one of the first light-transmitting holes 11 is a through hole penetrating the liquid crystal panel, and the remaining first light-transmitting area
  • the hole 11 is a light-transmitting area formed in the liquid crystal panel 10 for visible light and/or infrared light to pass.
  • the liquid crystal panel 10 is provided with two first light-transmitting holes 11, and the peripheral edge of each first light-transmitting hole 11 is provided with a light-transmitting hole frame 15.
  • 15 is generally made of light-absorbing material, such as a black matrix material.
  • the light-transmitting hole frame 15 may be a ring-shaped structure, and the shape and size of the inner hole are the same as or substantially the same as the shape and size of the first light-transmitting hole 11.
  • the light-transmitting hole frame 15 can prevent the light entering the first light-transmitting hole from entering the liquid crystal panel 10, so that the display effect of the liquid crystal panel 10 can be ensured.
  • the liquid crystal panel 10 is provided with three first light transmission holes 11, the light transmission hole frame 15 is a racetrack-shaped structure, and three first light transmission holes 11 corresponding to the three
  • the shapes and sizes of the three inner holes are the same or substantially the same as the shapes and sizes of the corresponding three first light-transmitting holes 11 respectively.
  • the shape of the first light-transmitting hole 11 can be a circular hole, an elliptical hole or a polygonal hole.
  • two first light-transmitting holes 11 are provided in the liquid crystal panel, and the first light-transmitting hole is located on the left side.
  • 11 is a racetrack shape
  • the first light transmission hole 11 on the right side is circular.
  • the shape of the light-transmitting hole frame 15 may be a racetrack shape or a polygon.
  • the shape of the light-transmitting hole frame 15 in FIG. 6 is a long polygon.
  • the setting area of the liquid crystal panel 10 generally refers to the area close to the edge of the liquid crystal panel 10.
  • the setting area may be located in and close to the rectangular liquid crystal panel.
  • An elongated area on the top short side of the rectangular liquid crystal panel, and the elongated area may be located on the left, right, or middle of the rectangular liquid crystal panel, and the two first light transmission holes 11 are located in the set area.
  • the liquid crystal panel 10 is a circular liquid crystal panel, and the set area may be a circular arc area located near the edge of the circular liquid crystal panel.
  • the at least two first light-transmitting holes 11 may be arranged according to a certain rule in the set area of the liquid crystal panel.
  • the first light-transmitting holes 11 are arranged in one or more rows along the width direction of the liquid crystal panel, and according to this The length direction of the first light transmission holes arranged in such a manner is greater than the width direction, or in other words, the first light transmission holes are arranged in a long strip structure, so that by performing display control on the liquid crystal panel 10, the first light transmission holes can be Together they form a long strip hole display effect or a porous display effect.
  • At least two second light-transmitting holes 21 are provided in the area of the backlight source 20 corresponding to the set area of the liquid crystal panel 10, and each second light-transmitting hole 21 corresponds to each first light-transmitting hole 11 one-to-one.
  • the area of the backlight source 20 between the adjacent second light-transmitting holes 21 is reserved, so that when the backlight source 20 emits light, the backlight source 20 located between the adjacent second light-transmitting holes 21 can prevent the backlight from passing through. A dark shadow appears on one side of the second light transmission hole 21 of the backlight source 20.
  • the second light transmission hole 21 may also be a through hole penetrating the backlight source 20, or may be a light transmission area through which visible light and/or infrared light can pass through a set area of the backlight source 20 that is transparentized.
  • part of the second light transmission hole 21 may be a through hole penetrating the backlight source 20, and the remaining second light transmission hole 21 may be obtained by transparentizing the set area of the backlight source 20 to provide visible light and/or infrared light. The transparent area through which light passes.
  • the light of the backlight source 20 and the deflection of the liquid crystal molecules in the liquid crystal panel 10 are controlled, so that the liquid crystal panel 10 realizes the display function.
  • the through holes control the deflection of the liquid crystal molecules in the liquid crystal panel 10 located between the adjacent first light transmission holes 11, and cooperate with the backlight located between the adjacent second light transmission holes 21 Source, the display effect of the long strip hole can be realized on the liquid crystal panel 10; and, by controlling the liquid crystal molecules in the liquid crystal panel 10 located between the adjacent first light transmission holes 11 to deflect in the opposite direction, and matching
  • the backlight located between the adjacent second light-transmitting holes 21 can also achieve a porous display effect, that is, by controlling the deflection of the liquid crystal molecules in the liquid crystal panel 10 located between the adjacent first light-transmitting holes 11, and In conjunction with the backlight source located between the adjacent second light-transmitting holes 21, the display effect of the elongated holes on the liquid crystal panel 10 and the multi-hole display effect
  • the liquid crystal panel 10 and the backlight source 20 are provided with light transmitting holes, and the area of the backlight source 20 between the adjacent second light transmitting holes 21 is reserved
  • the backlight source 20 emits light
  • the corresponding area is provided with a backlight, so that the area between the adjacent first light-transmitting holes 11 in the liquid crystal panel 10 can also be displayed together with other areas of the liquid crystal panel 10.
  • a dark shadow appears on one side of the light hole 11, which improves the display effect of the liquid crystal display.
  • the liquid crystal panel 10 generally includes a first transparent substrate 12 and a second transparent substrate 14 opposed to each other, and an intermediate functional layer 13 located between the first transparent substrate 12 and the second transparent substrate 14;
  • the transparent substrate 12 and the second transparent substrate 14 are also called base substrates, which may specifically be transparent glass substrates or transparent plastic substrates, which are used to protect the intermediate functional layer 13 between the first transparent substrate 12 and the second transparent substrate 14 .
  • the intermediate functional layer 13 usually includes a multilayer transparent layer and a multilayer non-transparent layer arranged in a stack, wherein the transparent layer includes a liquid crystal layer, an alignment layer, a flat layer, etc., and the non-transparent layer includes a black matrix layer, a color filter layer, a light shielding layer, etc. .
  • the first light-transmitting hole 11 located in the first transparent substrate 12 and the second transparent substrate 14 may be a through hole penetrating the first transparent substrate 12 and the second transparent substrate 14, or it may not damage the first transparent substrate 12 and the second transparent substrate.
  • the light-transmitting areas of the two transparent substrates 14 are used in this embodiment without damaging the light-transmitting areas of the first transparent substrate 12 and the second transparent substrate 14 to ensure the strength of the first transparent substrate 12 and the second transparent substrate 14.
  • the first light-transmitting hole 11 located in the intermediate functional layer 13 may be a first light-transmitting area corresponding to the set area, and the specific light-transmitting form of the first light-transmitting area includes transmitting light through a through hole penetrating the intermediate functional layer.
  • the light can be transmitted through the through holes penetrating part of the functional layer and the partially transparentized transparent area.
  • the intermediate functional layer 13 includes multiple transparent layers and multiple non-transparent layers, and these transparent layers and non-transparent layers are stacked between the first transparent substrate 12 and the second transparent substrate 14;
  • a light-transmitting area includes first through holes penetrating each non-transparent layer, and a portion of the pixels in the liquid crystal panel 10 between any two adjacent first through holes remains.
  • the backlight source 20 located between the adjacent second light transmitting holes 21 has a backlight passing design, which can be displayed on the liquid crystal
  • the panel 10 realizes switching between the elongated hole and the plurality of first light-transmitting holes.
  • the first transparent substrate 12, the second transparent substrate 14 and the transparency in the transparent region are relatively transparent with respect to the wavelength of the optical device, for example .
  • the optical device is an optical device in the visible light waveband
  • the transparency of the first transparent substrate 12 and the second transparent substrate 14 is relatively transparent to visible light, so that the visible light can pass through the first transparent substrate 12 and the second transparent substrate 14 substantially without loss
  • the optical device is an optical device in the infrared light band
  • the transparency of the first transparent substrate 12 and the second transparent substrate 14 is relatively transparent to infrared light, so that the infrared light can pass through the first transparent substrate 12 and the second transparent substrate 14 substantially without loss .
  • the liquid crystal panel 10 usually further includes a first polarizer 16a disposed on the surface of the first transparent substrate 12 away from the intermediate functional layer, and The second polarizer 16b on the surface of the second transparent substrate 14 away from the intermediate functional layer; that is, a first polarizer 16a is provided on the outer surface of the first transparent substrate 12, and a first polarizer 16a is provided on the outer surface of the second transparent substrate 14. Two polarizer 16b.
  • the first light transmission hole 11 further includes a second through hole or a second through hole penetrating the first polarizer 16a.
  • Transparent area For example, two second through holes 161 are provided in the first polarizer 16a shown in FIG. 8. The second through holes 161 are used to allow visible light and/or infrared light to pass through the liquid crystal panel 10 into the optical device without obstruction. .
  • the arrangement of the third through hole in the second polarizer 16b can be referred to the description of the second through hole 161 in the first polarizer 16a. .
  • the first polarizer 16a and the first transparent substrate 12 Between the second polarizer 16b and the second transparent substrate 14, or between the first transparent substrate 12 and the second transparent substrate 14, a first light shielding ring 18 is provided.
  • the first light shielding ring 18 may be ink or black. It is made of matrix material, and its shape can be circular.
  • the shape of the inner hole of the first light shielding ring 18 is similar to that of the second through hole 161, and the size of the inner hole of the first light shielding ring 18 is slightly smaller than that of the second through hole 161, so as to shield the edge of the second through hole 161.
  • the second through holes and/or the third through holes provided in the first polarizer 16a and the second polarizer 16b are further improved. Specifically, as shown in FIGS. 8 and 11, the second through holes 161 located in the first polarizer 16a communicate with each other to form an elongated hole 162, and/or, each third through hole 161 located in the second polarizer 16b communicates with each other. The through holes communicate with each other to form an elongated hole.
  • the second through holes 161 in the first polarizer 16a can be combined into one elongated hole 162 for processing
  • the third through holes in the second polarizer 16b can be combined into one elongated hole for processing. Processing, so that the openings in the first polarizer 16a can be formed by one processing, and the openings of the second polarizer 16b can be formed by one processing, which improves the processing efficiency.
  • the above-mentioned elongated hole 162 is a racetrack-shaped hole, an oval hole or a polygonal hole, such as the racetrack-shaped hole used in this embodiment.
  • the two first through holes 161 in the first polarizer 16a are merged into one elongated hole 162 and the third through holes in the second polarizer 16b are merged into one elongated hole, the two first through holes
  • the area between the light-transmitting holes 11 is not shielded by a polarizer.
  • the shape of the first light shielding ring 18 is also changed accordingly.
  • the surface of the first transparent substrate 12 away from the intermediate functional layer 13, or the surface of the second transparent substrate 14 away from the intermediate functional layer 13, or the first transparent substrate 12 and the second transparent substrate 14 A first light-shielding ring 18 is provided therebetween, and the first light-shielding ring 18 is used to shield the edge of the first light transmission hole 11 and the area between two adjacent first light transmission holes 11.
  • the first light-shielding ring 18 has a long strip structure, similar to a racetrack shape.
  • the first light-shielding ring 18 is provided with an inner hole in the area corresponding to the first light-passing hole 11, and the shape of the inner hole is similar to that of the second The shape of the through hole 161 is similar.
  • the first light-shielding ring 18 may be arranged in the elongated hole 162 and located outside the first transparent substrate 12 or outside the second transparent substrate 14. It may also be arranged on the first transparent substrate 12 and the second transparent substrate. The area between the two transparent substrates 14 and corresponding to the elongated hole 162. By providing the first light-shielding ring 18, the passage of light from the area between two adjacent first light-transmitting holes 11 is blocked without affecting the passage of visible light or infrared light.
  • the second through hole 161 is provided with a light-transmitting filling layer that fills the second through hole 161
  • the third through hole is provided with a light-transmitting filling layer that fills the third through hole
  • Use transparent fillers such as OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) to fill the second and third through holes to eliminate the inside of the second and third through holes Air gap.
  • the surface of the filler can be flush with the surface of the polarizer filled in, so that the liquid crystal panel has a better appearance.
  • the liquid crystal panel 10 further includes a transparent cover plate 17.
  • the transparent cover plate 17 may be a glass cover plate or a plastic cover plate, which is connected to the second polarizer 16b through OCA, The transparent cover 17 is used to protect the liquid crystal display.
  • the liquid crystal panel 10 also includes a plurality of pixel units, which are usually arranged in an array in the entire liquid crystal panel.
  • the pixel units between the first light transmission holes 11 can be reserved.
  • the liquid crystal panel 10 is provided with two first light-transmitting holes 11, and the pixel unit is reserved in the area B between the two first light-transmitting holes 11.
  • the backlight source 20 by turning off or lighting up the pixel units in the area B, it is possible to switch between the display effect of the long strip hole and the display effect of the double hole on the liquid crystal panel 10.
  • the display effect of the pixel unit in the closed area B is as shown in FIG. 14, at this time, the long strip hole display effect of the liquid crystal panel 10 is realized.
  • the display effect of the pixel unit in the lighted area B is shown in FIG. 15, at this time, the dual-hole display effect of the liquid crystal panel 10 is realized.
  • special graphics can also be displayed in the area B between the two first light-transmitting holes 11 to present a distinctive appearance effect.
  • the special graphic may be formed on the inner surface or the outer surface of the transparent cover plate 17 by means of pad printing or the like.
  • the liquid crystal panel 10 further includes a plurality of signal traces 19 respectively connected to a plurality of pixel units for signal connection.
  • the plurality of signal traces 19 are arranged in a horizontal and vertical staggered arrangement in the liquid crystal panel 10, wherein the horizontally arranged signal traces
  • the lines 19 are usually connected to the pixel units arranged in rows, and the signal traces 19 arranged in the longitudinal direction are usually connected to the pixel units arranged in columns.
  • the signal wiring 19 passing through the first light transmission hole 11 is routed in the light transmission hole frame 15 of the first light transmission hole 11. That is, the signal wires 19 passing through the first light-transmitting holes 11 are respectively routed around the edges of the corresponding first light-transmitting holes 11 to prevent these signal wires 19 from being concentrated and wired together, which is more conducive to realizing the narrow frame of the liquid crystal panel 10 design.
  • the area of the first light transmission hole 11 can be appropriately increased, that is, the first light transmission hole is designed to be as large as possible some.
  • the liquid crystal panel 10 between two adjacent first light-transmitting holes 11 does not display, and the first light-transmitting hole 11 can be designed as an elliptical hole, compared to the first The light-transmitting hole can increase the area of the first light-transmitting hole 11, reduce the shielding of the visual field of the optical device by the edge of the first light-transmitting hole 11, and improve the imaging effect of the optical device.
  • the backlight source 20 generally includes a light guide plate and a light source located on one side of the light guide plate, and the light source may be a light bar.
  • the strip hole penetrates the light guide plate 24 in the backlight source 20, and the light emitted from the light source enters the light guide plate 24 from one side of the light guide plate 24, and
  • the light propagates to the other side of the light guide plate 24, when the light propagates to the side wall of the elongated hole, the light cannot reach the side edge of the elongated hole away from the light source due to the blocking of the light-transmitting hole frame of the elongated hole , So that the side edge cannot be lighted, resulting in a dark shadow area on the side of the long strip hole facing away from the light source, so that the liquid crystal panel 10 and the dark shadow area on the light guide plate 24 appear dark shadow, thereby affecting the LCD screen display effect.
  • the backlight source 10 located between the adjacent second light-transmitting holes 21 is reserved.
  • the light guide plate 24 between the holes 21, by retaining the light guide plate 24 located between the adjacent second light transmission holes 21, can make the light entering the light guide plate 24 continue to propagate forward after reaching the second light transmission hole 21 As shown in FIG. 20, the light propagates in the light guide plate 24.
  • Such a design can prevent dark shadows from appearing on the side of the second light transmission hole 21 facing away from the light source and the adjacent second light transmission holes 21.
  • the design of the second light transmission hole 21 in the backlight source 20 is related to the type of the optical device installed on the back side of the backlight source 20, and the design solutions of the second light transmission hole 21 corresponding to different types of optical devices are not the same.
  • the optical device includes one of a visible light optical device and an infrared optical device, and an optical device includes both a visible light optical device and an infrared optical device as examples.
  • At least two second light transmission holes 21 each include a fourth through hole 241 penetrating through the light guide plate 24.
  • the fourth through hole 241 is used for passing visible light or infrared light. Part of the light guide plate 24 that passes through and is located between any two adjacent fourth through holes 241 remains. Taking the light guide plate shown in FIG.
  • two fourth through holes 241 are provided in the light guide plate 24, and both visible light and infrared light can pass through the fourth through holes 241 unimpededly;
  • the light guide plate 24 between the fourth through holes 241 is retained, so light entering the light guide plate 24 can pass through the light guide plate 24 located between two adjacent fourth through holes 241, thereby preventing the Dark shadows appear on the light guide plate 24 between the two fourth through holes 241, which can prevent the liquid crystal panel 10 and the light guide plate 24 between the two adjacent fourth through holes 241 from appearing dark shadows, and improve the liquid crystal display The display effect.
  • the at least two second light transmission holes 21 each include an infrared light transmission area located in the light guide plate 24, and the infrared light transmission area is used for passing infrared light.
  • the infrared light transmission area is used for passing infrared light.
  • two infrared light transmitting regions are provided in the light guide plate 24, and infrared light can pass through the infrared light transmitting regions.
  • the light guide plate 24 located between two adjacent infrared light transmission areas can be prevented from appearing dark, and the liquid crystal panel 10 and the area corresponding to the light guide plate 24 located between the two adjacent infrared light transmission areas can be prevented. Dark shadows appear, improving the display effect of the LCD screen.
  • the at least one second light transmission hole 21 includes a fourth through hole penetrating through the light guide plate 24, and the fourth through hole is used for the passage of visible light;
  • the infrared light-transmitting area in the light plate 24 is used for the infrared light to pass through.
  • two second light transmission holes 21 are provided in the light guide plate 24, one of which is a fourth through hole penetrating the light guide plate, and the other is an infrared light transmission area formed in the light guide plate, and visible light can pass through
  • the fourth through hole passes through, and infrared light can pass through the red light-transmitting area.
  • the light guide plate 24 located between the fourth through hole and the infrared light transmission area is retained, so light entering the light guide plate 24 can pass through the light guide plate located between the fourth through hole and the infrared light transmission area, thereby It can prevent the light guide plate 24 located between the fourth through hole and the infrared light transmitting area from appearing dark, and can prevent the liquid crystal panel 10 from appearing in the area corresponding to the light guide plate 24 located between the fourth through hole and the infrared light transmitting area. Dark shadow, improve the display effect of the LCD screen.
  • the backlight source 20 also includes a back plate 22, a reflective sheet 23 and an optical film stacked in sequence.
  • the light guide plate 24 is located on the reflective sheet 23 and the optical film.
  • the second light-transmitting hole 21 also includes a fifth through hole used to pass through the back plate 22, the reflective sheet 23 and the optical film material, and a part of the optical film located between any two adjacent fifth through holes Material retention.
  • the optical film material located between the two adjacent fifth through holes is retained, which can ensure the optical effect of the optical film material.
  • the remaining part of the optical film material can be used to improve the relative positioning.
  • the light-emitting effect of the light guide plate 24 between the adjacent fourth through holes further ensures the display effect of the liquid crystal panel located between the two first through holes.
  • the back plate 22 is also called a backlight frame, and is usually made of metal or plastic.
  • the reflective sheet 23 is generally installed between the back plate 22 and the light guide plate 24, and is used to reflect the light emitted from the light guide plate 24 to the back plate 22 back to the light guide plate 24, so as to improve the utilization rate of light.
  • the optical film material generally includes a diffusion sheet 25 and a brightness enhancement film 26, wherein the diffusion sheet 25 is used to provide a uniform surface light source for the liquid crystal panel 10, and the brightness enhancement film 26 is used to improve the luminous efficiency of the entire backlight source 20.
  • the back plate 22 and the reflective sheet 23 are usually made of opaque materials, and the light guide plate 24, the diffusion sheet 25 and the brightness enhancement film 26 are usually made of transparent materials.
  • the second light transmission hole 21 further includes a fifth through hole used to penetrate the back plate 22, the reflection sheet 23 and the optical film.
  • the fifth through hole may only penetrate the back plate 22 and the reflective sheet 23, but not through the diffuser sheet 25 and the brightness enhancement film 26, and the area corresponding to the fifth through hole in the diffuser sheet 25 and the brightness enhancement film 26 may be transparent. Chemical treatment to form a transparent area.
  • the second light transmission hole 21 includes an infrared light transmission area
  • an infrared lamp installation located beside the fifth through hole is also provided in the back plate 22 hole.
  • the infrared lamp mounting hole is used to install an infrared lamp emitting infrared light and provide infrared light for imaging of the infrared optical device.
  • the back plate 22, the reflective sheet 23, the diffusion sheet 25 and the brightness enhancement film 26 can be bonded and fixed by the light shielding glue 27.
  • the edge of the fifth through hole in the back plate 22 is provided with a vertical wall 221 that passes through the fifth through hole in the back plate 22 and extends into the guide In the fourth through hole 241 in the light plate 27.
  • the fifth through hole in the back plate 22 may be formed by a punching or drilling process.
  • the upright wall 221 is located inside the back plate 22 and at the peripheral edge of the fifth through hole.
  • the upright wall 221 can be formed by stamping together with the fifth through hole, or can be formed separately after the fifth through hole is formed.
  • the vertical wall 221 on the back plate 22 is inserted into the reflective sheet 22, the light guide plate 24 and the optical film.
  • the vertical wall 221 can be used to reflect The sheet 22, the light guide plate 24 and the optical film material are limited in position, and at the same time, the hole wall of the fourth through hole of the light guide plate 24 can be shielded, sealed and mechanically protected.
  • the signal traces in the liquid crystal panel 10 can be formed by the non-transparent layer on the second transparent substrate 14. (Such as a black matrix layer) blocking can ensure a better appearance of the liquid crystal display.
  • a shielding layer is not required on the cover glass 17 to prevent the shielding layer from blocking the view of the optical device and help reduce the size of the first light-transmitting hole in the liquid crystal panel 10.
  • the top surface of the backlight that is, the surface of the brightness enhancement film 26 is provided with a light-shielding glue 27, and the backlight 20 is bonded and fixed to the liquid crystal panel 10 through the light-shielding glue 26.
  • the surface of the backlight source 20 facing the liquid crystal panel 10, that is, the surface of the brightness enhancement film 26, is also provided with a second light shielding ring 28.
  • the second light shielding ring 28 can prevent the light from entering the first light transmission hole 11 to pass through the first light. The hole 11 spreads out.
  • the shape of the second light-shielding ring 28 is shown in FIGS. 24 and 25, wherein the shape of the second light-shielding ring 28 in FIG.
  • the second light-shielding ring 28 in FIG. 25 has a racetrack shape, and two inner holes are arranged inside.
  • the diameter of the inner hole is slightly smaller than the diameter of the first light-transmitting hole 11 to ensure that the periphery of the first light-transmitting hole 11 The shading effect.
  • the second light shielding ring 28 provided on the backlight source 20 is eliminated, and the second light shielding ring 28 is formed on the first transparent substrate of the liquid crystal panel 10. ⁇ and the first polarizer, and located around the first light hole 11.
  • the second light-shielding ring 28 can be prepared by a process of pad printing black ink.
  • This preparation method has high precision, and the second light-shielding ring 28 and the first light transmission hole 11 are both formed in the liquid crystal panel 10, which makes it easier to ensure the second light-shielding
  • the alignment accuracy between the ring 28 and the first light transmission hole 11, therefore, greatly reduces the eccentricity of the second light shield ring 28 and the first light transmission hole 11 of the liquid crystal panel 10, thereby improving the appearance of the liquid crystal display.
  • the inner hole of the second light-shielding ring 28 may coincide with the inner hole of the first light-shielding ring 18, and the light-shielding area of the second light-shielding ring 28 may overlap the light-shielding area of the first light-shielding ring 18;
  • the light shielding ring 28 may be integrally formed with the first light shielding ring 18.
  • the above-mentioned liquid crystal display screen further includes a plurality of optical devices, and at least one optical device is correspondingly provided in each second light transmission hole in the liquid crystal display screen.
  • the liquid crystal display screen shown in FIGS. 29 and 30 as an example, two first light transmission holes 11 are provided in the liquid crystal panel 10, two second light transmission holes 21 are provided in the backlight source 20, and the second light transmission holes 21 corresponds to the first light transmission hole, so that light can pass through the second light transmission hole 21 and the first light transmission hole 11.
  • two optical devices 30 are provided, and each second light transmission hole 21 is correspondingly provided with an optical device 30.
  • optical devices 30 By arranging a plurality of optical devices 30 on the rear side of the liquid crystal display screen, these optical devices 30 are respectively installed in at least two second light transmission holes 21, due to the gap between adjacent second light transmission holes 21 in the liquid crystal display screen.
  • the backlight source 20 is retained. Therefore, when the backlight source 20 provides backlight for the liquid crystal panel 10, the backlight source 20 located between the adjacent second light transmission holes 21 also has the backlight passing through, so that the liquid crystal panel 10 corresponds to it. There will be no dark shadows in the area, thereby improving the display effect of the LCD screen.
  • the optical device 30 includes one or more of an infrared light camera, a visible light camera, a flash, a structured light sensor, a structured light transmitter, an infrared lamp, an infrared sensor, a three-dimensional ranging transmitter, and a three-dimensional ranging receiver.
  • One optical device or two or more optical devices can be arranged in the two light-transmitting holes, which can be selected according to actual functional requirements, the size of the second light-transmitting hole, and the volume of the optical device.
  • the two optical devices can both be visible light cameras; or, both are infrared light cameras; or, one of them is a visible light camera and the other is an infrared light camera.
  • Light camera can both be visible light cameras; or, both are infrared light cameras; or, one of them is a visible light camera and the other is an infrared light camera.
  • the second light hole on the left is used to install the infrared camera, and the second on the right
  • the light-transmitting hole is used to install a visible light camera, and an infrared lamp is installed in the infrared lamp mounting hole beside the second light-transmitting hole where the infrared light camera is installed, and the infrared light is used to provide the infrared camera with infrared light required for imaging.
  • the optical device 30 can be directly bonded and fixed on the back of the liquid crystal display screen with light-shielding glue, and can also be installed in the following manner:
  • the LCD screen further includes a middle frame and a bracket 40, wherein the middle frame is used to carry the LCD screen and protect the LCD screen.
  • the bracket 40 is installed on the rear side of the liquid crystal display screen to carry the optical device 30 and ensure the position accuracy between the optical device 30 and the second light transmission hole 21.
  • the bracket 40 can be accurately aligned with the area where the second light-transmitting hole 21 of the liquid crystal display is located, and fixed on the middle frame.
  • the bracket 40 and the middle frame can be fixedly connected by light-shielding glue or screws.
  • the optical device 30 is mounted on the bracket 40.
  • the optical device 30 and the bracket 40 can be fixedly connected by light-shielding glue or screws.
  • the optical device 30 mounted on the bracket 40 corresponds to the corresponding second light transmission hole 21.
  • Using the bracket 40 to support the optical device 30 can improve the positional accuracy between the optical device 30 and the second light transmission hole 21 and reduce the light shielding structure of the optical device 30 by the edge of the second light transmission hole 21 or the edge of the first light transmission hole 11
  • the occlusion of the light-shielding structure reduces light loss and improves the imaging effect.
  • the optical device after the optical device is installed on the bracket 40, it can be installed between the back plate 22 and the middle frame of the backlight 20, between the back plate 22 and the bracket 40, between the bracket 40 and the middle frame, And a sealing foam or glue is arranged between the bracket 40 and the optical device 30 to protect the optical device 30 from dust.
  • the optical devices 30 are mounted on the same bracket 40.
  • the alignment accuracy between the optical device 30 and the second light-transmitting hole 21 can be improved, there is still room for improvement.
  • a plurality of brackets 40 may be used.
  • two brackets 40 are provided on the rear side of the LCD screen.
  • the two brackets 40 are respectively fixedly installed on the middle frame, and each bracket 40 is installed with at least one corresponding to the second light-transmitting hole 21.
  • connection manner between the bracket 40 and the middle frame, and the connection manner between the optical device 30 and the bracket 40 are basically the same as those in the above-mentioned embodiment, and therefore will not be repeated.
  • the distance between two adjacent first light transmission holes 11 should be as small as possible, and the distance between two adjacent second light transmission holes 21 should also be as small as possible. Possibly small.
  • the optical device 30 includes an elongated device body, and the optical center 31 of the optical device is located at the geometric center of the elongated device body.
  • the two optical devices 30 are arranged in the manner shown in FIG. 33, the two optical devices 30 are arranged along the width direction of the liquid crystal panel 10, and the length direction of the device body is the same as the width direction of the liquid crystal panel 10.
  • the short sides of the device 30 are arranged opposite to each other. With this arrangement, the distance between the optical centers of the two optical devices 30 is relatively large, and correspondingly, the distance between two adjacent first light-transmitting holes 11 is also relatively large. The distance between two adjacent second light transmission holes 21 is also relatively large.
  • the optical devices 30 are arranged side by side along the width direction of the liquid crystal panel 10, and the length direction of the device body is perpendicular to the width direction of the liquid crystal panel 10.
  • the two optical devices 30 are arranged side by side along the width direction of the liquid crystal panel 10, and the length direction of the device body is perpendicular to the width direction of the liquid crystal panel 10.
  • the structure of the two optical devices 30 shown in FIG. 3234 remains unchanged.
  • the distance between the optical centers of the two optical devices 30 becomes smaller, that is, The distance between the optical centers of the two optical devices 30 shown in 3234 is smaller than the distance between the optical centers of the two optical devices 30 shown in FIG. 3133, so that the distance between two adjacent first light-transmitting holes 11 can be reduced.
  • the distance and the distance between two adjacent second light-transmitting holes 21 further increase the screen-to-body ratio of the liquid crystal display.
  • the optical device 30 includes a long strip-shaped device body, and the optical center 31 of the optical device is set close to one short side of the device body; two adjacent optical devices In 30, the short side closest to the optical center of one device body is opposite to the short side of the other device body closest to the optical center.
  • the arrangement of the two optical devices 30 in FIG. 35 remains unchanged.
  • the optical centers of the two optical devices 30 are as close to each other as possible.
  • Set close to each other in other words, the optical center of each optical device 30 is eccentrically set in the device body. In the same arrangement as in FIG.
  • the distance between the optical centers of the two optical devices 30 can be minimized. Therefore, the distance between two adjacent first light-transmitting holes 11 and the distance between two adjacent second light-transmitting holes 21 can be reduced, thereby increasing the screen-to-body ratio of the liquid crystal display.
  • mobile terminals which includes the liquid crystal display screen described in the foregoing embodiment.
  • mobile terminals include but are not limited to mobile phones, displays, portable computers, tablet computers, watches, and bracelets. Since the mobile terminal includes the liquid crystal display screen described in the above embodiment, the mobile terminal also has the advantages of the above liquid crystal display screen. For details, please refer to the relevant description of the above embodiment, which will not be repeated here.
  • a liquid crystal display screen characterized by comprising a liquid crystal panel and a backlight source arranged on the back of the liquid crystal panel, wherein:
  • At least two first light-transmitting holes are provided in the set area of the liquid crystal panel, at least two second light-transmitting holes are provided in the backlight, and the second light-transmitting holes are connected to the first light-transmitting holes.
  • the holes correspond to each other, the first light-permeable hole and the second light-permeable hole are used for the light collected by the optical device to pass through, and the area of the backlight source located between the adjacent second light-permeable holes There is backlight passing.
  • liquid crystal display screen of claim 1 wherein the liquid crystal panel comprises a first transparent substrate and a second transparent substrate disposed opposite to each other, and is located between the first transparent substrate and the second transparent substrate Intermediate functional layer;
  • the first light transmission hole includes a first light transmission area located in the intermediate functional layer.
  • the intermediate functional layer comprises at least multiple transparent layers and multiple non-transparent layers
  • the first light-transmitting area includes a first through hole penetrating each of the non-transparent layers, and a portion of the pixels in the liquid crystal panel between any two adjacent first through holes remains.
  • liquid crystal display of claim 2 wherein the liquid crystal panel further comprises a first polarizer disposed on the surface of the first transparent substrate away from the intermediate functional layer, and A second polarizer on the surface of the second transparent substrate away from the intermediate functional layer;
  • the first light transmission hole includes a second through hole penetrating through the first polarizer or a second completely transparent area in the first polarizer through which all light can pass, and penetrating the second polarizer The third through hole or the third completely transparent area in the second polarizer through which all light can pass.
  • liquid crystal display of claim 5 wherein the elongated hole is a racetrack-shaped hole, an oval hole or a polygonal hole.
  • liquid crystal display screen of any one of claims 1-8 wherein the liquid crystal panel comprises a plurality of signal traces, and the signal traces passing through the first light-transmitting hole are in the The first light-transmitting hole is wired in the light-transmitting hole frame.
  • the backlight source comprises a light guide plate
  • the at least two second light transmission holes each comprise a fourth through hole penetrating the light guide plate
  • the fourth through hole is used for passing visible light or infrared light, and a part of the light guide plate located between any two adjacent fourth through holes is reserved.
  • each of the at least two second light transmission holes comprises an infrared light transmission area located in the light guide plate, The infrared light transmission area is used for passing infrared light.
  • liquid crystal display of claim 1 wherein the backlight source comprises a light guide plate
  • At least one of the second light transmission holes includes a fourth through hole penetrating through the light guide plate, and the fourth through hole is used for passing visible light;
  • the light transmission hole includes an infrared light transmission area in the light guide plate, and the infrared light transmission area is used for passing infrared light.
  • the backlight source further comprises a back plate, a reflective sheet and an optical film that are stacked in sequence, and the light guide plate is located on the reflective Between the sheet and the optical film;
  • the second light-transmitting hole further includes a fifth through hole that passes through the back plate, the reflective sheet and the optical film, and is located between any two adjacent fifth through holes of the optical film Material retention.
  • liquid crystal display screen of claim 16 wherein at least one optical device is correspondingly provided in each second light transmission hole in the liquid crystal display screen.
  • liquid crystal display screen of claim 16 wherein the liquid crystal display screen further comprises a middle frame and at least two brackets;
  • the liquid crystal display is installed in the middle frame
  • Each of the brackets is fixedly installed on the middle frame, and at least one optical device corresponding to the second light transmission hole is installed on each of the brackets.
  • optical device comprises a long strip-shaped device body, and the optical center of the optical device is located at the geometric center of the device body;
  • the optical devices are arranged side by side along the width direction of the liquid crystal panel, and the length direction of the device body is perpendicular to the width direction of the liquid crystal panel.
  • optical device comprises an elongated device body, and the optical center of the optical device is arranged close to a short side of the device body;
  • one of the short sides of the device body closest to the optical center of the device body and the short side of the device body closest to the optical center of the other device body Relative settings.
  • the optical device includes an infrared camera, a visible light camera, a flashlight, a structured light sensor, a structured light transmitter, an infrared lamp, an infrared sensor, and a three-dimensional ranging transmitter One or more of the receiver and the three-dimensional ranging receiver.
  • a mobile terminal wherein the mobile terminal comprises the liquid crystal display screen according to any one of claims 1-21.

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Abstract

一种液晶显示屏及移动终端，涉及终端设备技术领域，用于解决液晶显示屏显示时长条形孔的一侧易出现暗影而影响显示品质的问题。该液晶显示屏包括液晶面板（10）和背光源（20），液晶面板（10）中设置有至少两个第一透光孔（11），背光源（20）中设置有至少两个第二透光孔（21），第二透光孔（21）与第一透光孔（11）一一对应，第一透光孔（11）和第二透光孔（21）用于供光学器件（30）采集的光通过，背光源（20）中位于相邻的第二透光孔（21）之间的区域有背光通过。移动终端包括液晶显示屏。液晶显示屏中位于相邻的第二透光孔（21）之间的背光源（20）中有背光通过，从而为液晶面板（10）的对应区域提供背光，避免液晶显示屏显示时在透光孔的一侧出现暗影，提高液晶显示屏的显示效果。

Description

液晶显示屏及移动终端
本申请要求在2019年6月14日提交中国国家知识产权局、申请号为201910517071.1的中国专利申请的优先权，发明名称为“一种全面屏终端设备”的中国专利申请的优先权，在2019年10月29日提交中国国家知识产权局、申请号为201911039422.9的中国专利申请的优先权，发明名称为“液晶显示屏及移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及终端设备技术领域，尤其涉及一种液晶显示屏及移动终端。
背景技术
随着手机功能的不断发展，不同品牌的手机的同质化竞争加剧。为了能够在同质化竞争中脱颖而出，提高手机的屏占比是行之有效的手段之一。屏占比是指屏幕面积与手机前盖板面积的相对比值，屏占比大的手机具有极佳的视觉效果和操作体验，因此更易获得用户青睐。
为了提高手机的屏占比，目前较常用的一种解决方案是采用刘海屏来提高屏占比，刘海屏是指在手机的屏幕顶部设置用于安装前置摄像头等光学器件的缺口，因形似刘海儿而得名。为了进一步提高用户体验，近年来又出现了一种打孔屏，打孔屏是在手机的屏幕上设置用于安置前置摄像头等光学器件的开孔，相比于刘海屏，打孔屏可以进一步提高屏占比。
不过，随着安装在打孔屏的开孔内光学器件增多，一般需要在手机屏幕如液晶显示屏上打长条形孔，当液晶显示屏显示时，长条形孔的一侧易出现暗影，影响液晶显示屏的显示品质。
发明内容
本发明实施例提供了一种液晶显示屏及移动终端，以便于在液晶显示屏的开孔中设置光学器件，同时还可以在液晶显示屏显示时避免长条形孔的一侧出现暗影。
第一方面，本发明实施例提供了一种液晶显示屏，包括液晶面板和设置于所述液晶面板背面的背光源，其中：所述液晶面板的设定区域内设置有至少两个第一透光孔，所述背光源中设置有至少两个第二透光孔，所述第二透光孔与所述第一透光孔一一对应，所述第一透光孔和所述第二透光孔用于供光学器件采集的光通过，所述背光源中位于相邻的所述第二透光孔之间的区域有背光通过。
本发明实施例提供的液晶显示屏具有如下优点：
本发明实施例提供的液晶显示屏中，在液晶面板中设置有至少两个第一透光孔，在背光源中设置有与第一透光孔一一对应的至少两个第二透光孔，且背光源中位于相邻的第二透光孔之间的区域保留，使得当背光源发光时位于相邻的第二透光孔之间的背光源中有背光通过，从而可以为液晶面板中与位于相邻的第二透光孔之间的背光源对应的区域提供背光，使得液晶面板中位于相邻的第一透光孔之间的区域也可以与液晶面板的其他区域一起进行显示，从而可以避免液晶显示屏显示时在第一透光孔的一侧出现暗影，进而提高液晶显示屏的显示效果。
第二方面，本发明实施例提供了一种移动终端，所述移动终端包括第一方面所述的液 晶显示屏。由于该移动终端包括上述第一方面所述的液晶显示屏，因此该移动终端也具有上述液晶显示屏的优点，具体可参见上面描述，在此不再赘述。
除了上面所描述的本发明实施例解决的技术问题、构成技术方案的技术特征以及由这些技术方案的技术特征所带来的有益效果外，本发明实施例提供的液晶显示屏及移动终端所能解决的其他技术问题、技术方案中包含的其他技术特征以及这些技术特征带来的有益效果，将在具体实施方式中作出进一步详细的说明。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的液晶面板的正视图；
图2为图1中A区的放大图；
图3为图2的剖视图；
图4为本发明实施例提供的液晶面板实现长条形孔的显示效果图；
图5为液晶面板中设置有三个第一透光孔的结构示意图；
图6为液晶面板中设置有两个第一透光孔的结构示意图；
图7为本发明实施例提供的一种液晶面板的结构示意图；
图8为图7中第一偏光片的结构示意图；
图9为图7中第一遮光圈的结构示意图；
图10为本发明实施例提供的另一种液晶面板的结构示意图；
图11为图10中第一偏光片的结构示意图；
图12为图10中第一遮光圈的结构示意图；
图13为图2中相邻的两个第一透光孔之间保留有像素单元的示意图；
图14为图13中B区像素单元关闭时的示意图；
图15为图13中B区像素单元点亮时的示意图；
图16为图13中B区设置有特殊图像时的示意图；
图17为相邻的两个第一透光孔之间不进行显示时的信号走线的布线图；
图18为相邻的两个第一透光孔之间进行显示时的信号走线的布线图；
图19为背光源的分解图；
图20为图19中导光板的结构示意图；
图21为具有长条形孔的液晶显示屏中的导光板的结构示意图；
图22为背光源的剖视图；
图23为液晶面板和背光源的一种连接方式图；
图24为图23中的第二遮光圈的一种结构示意图；
图25为图23中的第二遮光圈的另一种结构示意图；
图26为图23中第二遮光圈与第一透光孔之间的一种位置关系图；
图27为图23中第二遮光圈与第一透光孔之间的另一种位置关系图；
图28为液晶面板和背光源的另一种连接方式图；
图29为液晶显示屏包括一个支架的结构示意图；
图30为液晶显示屏包括两个支架的结构示意图；
图31为本发明实施例提供的液晶显示屏中设置有红外灯的一种结构示意图；
图32为本发明实施例提供的液晶显示屏中设置有红外灯的另一种结构示意图；
图33为两个光学器件的一种排布方式图；
图34为两个光学器件的另一种排布方式图；
图35为两个光学器件的另一种排布方式图。
附图标记说明：
10：液晶面板；      11：第一透光孔；      12：第一透明基板；
13：中间功能层；    14：第二透明基板；    15：透光孔边框；
16a：第一偏光片；   161：第二通孔；       162：长条形孔；
16b：第二偏光片；   17：透明盖板；        18：第一遮光圈；
19：信号走线；
20：背光源；        21：第二透光孔；      22：背板；
23：反射片；        24：导光板；          25：扩散片；
26：增亮膜；        27：遮光胶；          28：第二遮光圈；
221：立壁；         241：第四通孔；       30：光学器件；
31：光学中心；      40：支架。
具体实施方式
为了解决具有长条形孔的液晶显示屏显示时，在长条形孔一侧出现暗影进而影响液晶显示屏的显示效果的技术问题。本发明实施例对液晶显示屏中的打孔改进方案，通过在液晶显示屏中设置多个透光孔来容纳适当数量的光学器件，以保证移动终端的成像功能，同时，将相邻的透光孔之间的背光源部分保留下来，以使位于相邻的透光孔之间的背光源中仍有背光通过，从而可以防止在透光孔的一侧出现暗影区域，进而防止液晶显示屏在显示时在透光孔的位置出现暗影，提高液晶显示屏的显示效果。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其它实施例，均属于本发明保护的范围。
请参阅图1-图17，本发明实施例提供的液晶显示屏包括液晶面板10和背光源20，其中，液晶面板10是通过控制液晶分子偏转来实现显示的装置，液晶面板10本身不发光，因此为了能够实现显示功能，通常需要与背光源20配合使用，背光源20设置在液晶面板10的背面，用于为液晶面板10提供背光。
在本实施例中，液晶面板10的设定区域设置有至少两个第一透光孔11，每个第一透光孔11可以是贯穿液晶面板10的通孔，也可以是通过对液晶面板10的设定区域进行透明化处理后得到可以供可见光和/或红外光通过的透光区域，还可以是其中至少一个第一透光孔11为贯穿液晶面板的通孔，余下第一透光孔11为形成在液晶面板10中供可见光和/或红外光通过的透光区域。
例如，如图2和图3所示，液晶面板10中设置有两个第一透光孔11，每个第一透光孔11的周侧边缘设置有透光孔边框15，透光孔边框15一般是由吸光材料制成，例如由黑矩阵材料制成。透光孔边框15可以为圆环状结构，其内孔的形状、大小与第一透光孔11的形状、 大小相同或基本相同。利用透光孔边框15可以阻止进入第一透光孔中的光进入到液晶面板10，从而可以确保液晶面板10的显示效果。又如，如图5所示，液晶面板10中设置有三个第一透光孔11，透光孔边框15为跑道形结构，其内部设置有分别与三个第一透光孔11对应的三个内孔，三个内孔的形状、大小分别与对应的三个第一透光孔11的形状、大小相同或基本相同。
第一透光孔11的形状可以为圆孔、椭圆孔或多边形孔，例如，请参阅图6，液晶面板中设置有两个第一透光孔11，其中位于左侧的第一透光孔11为跑道形，位于右侧的第一透光孔11为圆形。透光孔边框15的形状可以为跑道形或多边形，例如图6中的透光孔边框15的形状为长条状的多边形。
液晶面板10的设定区域一般是指靠近液晶面板10一侧边缘的区域，例如，如图1所示，液晶面板10为矩形液晶面板时，设定区域可以为位于矩形液晶面板中且靠近该矩形液晶面板的顶部短边的长条形区域，且该长条形区域可以位于矩形液晶面板的左侧、右侧或者中间，两个第一透光孔11位于该设定区域内。又如，液晶面板10为圆形液晶面板，设定区域可以为位于靠近圆形液晶面板的边缘的一段圆弧形区域。至少两个第一透光孔11可以在液晶面板的设定区域内按照一定的规律排布，例如，这些第一透光孔沿液晶面板的宽度方向排列成一行或者多行，且按照这种方式排布的这些第一透光孔的长度方向大于宽度方向，或者说，这些第一透光孔排成成长条形结构，从而通过对液晶面板10进行显示控制，这些第一透光孔可共同构成长条形孔显示效果或多孔显示效果。
背光源20与液晶面板10的设定区域对应的区域设置有至少两个第二透光孔21，各第二透光孔21与各第一透光孔11一一对应。背光源20中位于相邻的第二透光孔21之间的区域保留，以便当背光源20发光时，位于相邻的第二透光孔21之间的背光源20中有背光通过，防止在背光源20的第二透光孔21的一侧出现暗影。第二透光孔21同样可以为贯穿背光源20的通孔，也可以为通过对背光源20的设定区域进行透明化处理后得到可以供可见光和/或红外光通过的透光区域。此外，还可以部分第二透光孔21为贯穿背光源20的通孔，余下第二透光孔21为通过对背光源20的设定区域进行透明化处理后得到可以供可见光和/或红外光通过的透光区域。
当液晶显示屏需要进行显示时，通过控制背光源20的发光以及液晶面板10中液晶分子的偏转，从而使液晶面板10实现显示功能。此外，如图4所示，通孔控制位于相邻的第一透光孔11之间的液晶面板10中的液晶分子的偏转，以及配合位于相邻的第二透光孔21之间的背光源，可以在液晶面板10上实现长条形孔的显示效果；并且，通过控制位于相邻的第一透光孔11之间的液晶面板10中的液晶分子的向相反的方向偏转，以及配合位于相邻的第二透光孔21之间的背光源，还可以实现多孔显示效果，即通过控制位于相邻的第一透光孔11之间的液晶面板10中的液晶分子的偏转，以及配合位于相邻的第二透光孔21之间的背光源，可以实现液晶面板10上的长条形孔的显示效果和多孔显示效果的切换，以更好地满足不同用户的个性化需求。
在本发明实施例提供的液晶显示屏中，在液晶面板10和背光源20中均设置有透光孔，且背光源20中位于相邻的第二透光孔21之间的区域被保留下来，当背光源20发光时位于相邻的第二透光孔21之间的背光源20中有背光通过，从而可以为液晶面板10中与位于相邻的第二透光孔之间的背光源对应的区域提供背光，使得液晶面板10中位于相邻的第一透光孔11之间的区域也可以与液晶面板10的其他区域一起进行显示，从而可以避免液晶显示屏显示时在第一透光孔11的一侧出现暗影，提高液晶显示屏的显示效果。
请参阅图3，液晶面板10一般包括相对设置的第一透明基板12和第二透明基板14，以及位于第一透明基板12和第二透明基板14之间的中间功能层13；其中，第一透明基板12和第二透明基板14也称为衬底基板，其具体可以为透明玻璃基板或透明塑料基板，用于保护位于第一透明基板12和第二透明基板14之间的中间功能层13。中间功能层13通常包括层叠设置的多层透明层和多层非透明层，其中透明层包括液晶层、配向层和平坦层等，非透明层包括黑矩阵层、彩色滤光层和遮光层等。位于第一透明基板12和第二透明基板14中的第一透光孔11可以为贯穿第一透明基板12和第二透明基板14的通孔，也可以为不破坏第一透明基板12和第二透明基板14的透光区域，在本实施例中采用不破坏第一透明基板12和第二透明基板14的透光区域，以确保第一透明基板12和第二透明基板14的强度。
位于中间功能层13中的第一透光孔11可以为与设定区域对应的第一透光区，该第一透光区的具体透光形式包括通过贯穿中间功能层的通孔透光，或者，通过贯穿部分功能层的通孔和经过部分透明化处理的透明区域透光。在一种可能的实施例中，中间功能层13包括多层透明层和多层非透明层，这些透明层和非透明层在第一透明基板12和第二透明基板14之间层叠设置；第一透光区包括贯穿各非透明层的第一通孔，且位于任意相邻的两个第一通孔之间的部分液晶面板10中的像素保留。如此设计，通过控制位于各第一通孔之间的各像素，同时配合背光源20发光时位于相邻的第二透光孔21之间的背光源20中有背光通过的设计，可以在液晶面板10上实现长条形孔和多个第一透光孔之间的切换。
值得一提的是，在本发明的上述实施例和下述实施例中，第一透明基板12、第二透明基板14以及透明区域中的透明是相对光学器件的波长而言的相对透明，例如，若光学器件为可见光波段的光学器件，则第一透明基板12和第二透明基板14中的透明为相对可见光透明，使得可见光基本无损失的通过第一透明基板12和第二透明基板14；若光学器件为红外光波段的光学器件，则第一透明基板12和第二透明基板14的透明为相对红外光透明，使得红外光基本无损失的通过第一透明基板12和第二透明基板14。
为了更好的实现液晶面板10的显示功能，如图7和图10所示，液晶面板10通常还包括设置于第一透明基板12远离中间功能层的面上的第一偏光片16a，以及设置于第二透明基板14远离中间功能层的面上的第二偏光片16b；即在第一透明基板12的外表面设置有第一偏光片16a，在第二透明基板14的外表面设置有第二偏光片16b。在本实施例中，为了降低在设定区域内的第一偏光片16a和第二偏光片16b的滤光作用，第一透光孔11还包括贯穿第一偏光片16a的第二通孔或位于第一偏光片16a中供所有光均可通过的第二完全透明区，以及贯穿第二偏光片16b的第三通孔或位于第二偏光片16b中供所有光均可通过的第三完全透明区。例如在图8所示的第一偏光片16a中设置有两个第二通孔161，第二通孔161用于使可见光和/或红外光可以无阻碍地通过液晶面板10进入到光学器件中。由于第一偏光片16a和第二偏光片16b的结构基本相同，因此，第二偏光片16b中的第三通孔的设置方式参见第一偏光片16a中的第二通孔161相关描述即可。
在上述实施例中，为了防止液晶面板10与第二通孔161的边缘或第三通孔的边缘对应区域漏光，如图7和图9所示，第一偏光片16a与第一透明基板12之间，第二偏光片16b与第二透明基板14之间，或，第一透明基板12与第二透明基板14之间设置有第一遮光圈18，第一遮光圈18可以为油墨或黑矩阵材料制成，其形状可以为圆环状。第一遮光圈18的内孔形状与第二通孔161相似，第一遮光圈18的内孔大小比第二通孔161 略小，以对第二通孔161的边缘进行遮挡。
为了提高加工效率以及降低成本，在上述实施例的基础上，对设置在第一偏光片16a和第二偏光片16b中的第二通孔和/或第三通孔做了进一步改进。具体地，如图8和图11所示，位于第一偏光片16a中的各第二通孔161相连通形成长条形孔162，和/或，位于第二偏光片16b中的各第三通孔相连通形成长条形孔。如此设计，可以使第一偏光片16a中的各第二通孔161合并成一个长条形孔162进行加工，使第二偏光片16b中的各第三通孔合并成一个长条形孔进行加工，从而通过一次加工即可形成位于第一偏光片16a中的开孔，通过一次加工即可形成第二偏光片16b的开孔，提高加工效率。上述长条形孔162为跑道形孔、椭圆形孔或多边形孔，例如本实施例所用的跑道形孔。
当第一偏光片16a中的各第二通孔161合并成一个长条形孔162以及第二偏光片16b中的各第三通孔合并成一个长条形孔后，由于位于两个第一透光孔11之间的区域无偏光片遮光，为了避免影响光学器件采集光线，第一遮光圈18的形状也相应改变。在一种可能的实施例中，第一透明基板12远离中间功能层13的面，或，第二透明基板14远离中间功能层13的面，或，第一透明基板12和第二透明基板14之间设置有第一遮光圈18，第一遮光圈18用于遮挡第一透光孔11的边缘以及位于相邻的两个第一透光孔11之间的区域。如图12所示，第一遮光圈18为长条形结构，类似于跑道形，第一遮光圈18与第一通光孔11对应的区域设置有内孔，该内孔的形状与第二通孔161的形状相似，第一遮光圈18可以设置在长条形孔162内且位于第一透明基板12的外侧或第二透明基板14的外侧，还可以设置在第一透明基板12和第二透明基板14之间且与上述长条形孔162对应的区域。通过设置第一遮光圈18，在不影响可见光或红外光通过的情况下，阻挡光从相邻两个第一透光孔11之间的区域通过。
为了避免在第一偏光片16a的第二通孔161以及第二偏光片16b的第三通孔存在空气气隙，降低第一透光孔11的透过率，在一种可能的实施例中，第二通孔161中设置有填平第二通孔161的透光填充层，和/或，第三通孔中设置有填平第三通孔的透光填充层，示例性地，可以使用OCR(Optical Clear Resin，光学透明树脂)或OCA(Optical Clear Adhesive，光学胶带)等透明填充物将第二通孔和第三通孔填满，以消除第二通孔和第三通孔内的空气气隙。另外，可以使填充物的表面与其所填的偏光片的表面平齐，以便液晶面板具有较佳的外观。
为了保护液晶面板10，如图7和图10所示，液晶面板10还包括透明盖板17，透明盖板17可以为玻璃盖板或塑料盖板，其通过OCA与第二偏光片16b连接，透明盖板17用于保护液晶显示屏。
液晶面板10除了包括上述实施例所述的结构外，还包括多个像素单元，这些像素单元在整个液晶面板中通常呈阵列方式分布。当在液晶面板10中设置有上述第一透光孔11时，可以保留各第一透光孔11之间的像素单元。例如，请参阅图13，液晶面板10中设置有两个第一透光孔11，位于两个第一透光孔11之间的区域B中保留像素单元。配合背光源20，通过关闭或点亮区域B中的像素单元，可以在液晶面板10上实现长条形孔的显示效果和双孔显示效果之间的切换。其中，关闭区域B中的像素单元的显示效果如图14所示，此时实现液晶面板10的长条形孔显示效果。点亮区域B中的像素单元的显示效果如图15所示，此时实现液晶面板10的双孔显示效果。此外，如图16所示，还可以在两个第一透光孔11之间的区域B中显示特殊图形，以便呈现出与众不同的外观效果。该特殊图形可以为通过移印等方式形成在透明盖板17的内表面或外表面上。
请参阅图17，液晶面板10还包括分别与多个像素单元信号连接的多条信号走线19，多条信号走线19在液晶面板10中横纵交错排布，其中，横向排列的信号走线19通常与行排列的像素单元连接，纵向排列的的信号走线19通常与列排列的像素单元连接。当液晶面板10中设置有上述第一透光孔11后，由于第一透光孔11的存在，使得经过第一透光孔的信号走线无法沿水平或竖直方向通过。鉴于此，在一可选的实施例中，如图17所示，经过第一透光孔11的信号走线19在第一透光孔11的透光孔边框15中布线。即经过各第一透光孔11的信号走线19分别在各自对应的第一透光孔11边缘围绕布线，防止这些信号走线19集中在一起布线，从而更利于实现液晶面板10的窄边框设计。
此外，当位于相邻的第一透光孔11之间的区域B中像素单元不点亮时，可以适当地增大第一透光孔11的面积，即将第一透光孔设计得尽量大一些。例如，如图18所示，相邻的两个第一透光孔11之间的液晶面板10不进行显示，第一透光孔11可以设计成椭圆形孔，相比于图17中第一透光孔，可以增大第一透光孔11的面积，减小第一透光孔11的边缘对光学器件的视野的遮挡，提高光学器件的成像效果。
背光源20通常包括导光板和位于导光板一侧的光源，该光源可以为灯条。请参阅图21，当液晶显示屏中设置有长条形孔时，该长条形孔贯穿背光源20中的导光板24，光源发出光从导光板24的一侧进入导光板24中，并向导光板24的另一侧传播，当光传播到长条形孔的侧壁时，由于长条形孔的透光孔边框的阻挡，导致光无法到达长条形孔远离上述光源的一侧边缘，使得该侧边缘无法被点亮，造成长条形孔背向光源的一侧出现暗影区域，从而液晶面板10与该导光板24上的暗影区域对应的区域出现暗影，进而影响液晶显示屏的显示效果。
针对上述问题，本发明实施例中保留位于相邻的第二透光孔21之间的背光源10，具体地，例如，如图19和图20所示，保留位于相邻的第二透光孔21之间的导光板24，通过保留位于相邻的第二透光孔21之间的导光板24，可以使得进入导光板24中的光在到达第二透光孔21后继续向前传播，光在导光板24中传播如图20所示，如此设计，可以防止在第二透光孔21背向光源的一侧以及相邻的第二透光孔21之间出现暗影。
背光源20中第二透光孔21的设计与安装在背光源20后侧的光学器件的类型相关，不同类型的光学器件对应的第二透光孔21的设计方案也不尽相同。下面将分别以光学器件包括可见光光学器件和红外光光学器件中的一种时，以及光学器件同时包括可见光光学器件和红外光光学器件时为例进行分别说明。
以光学器件为可见光光学器件为例，请参阅图20，至少两个第二透光孔21均包括贯穿导光板24的第四通孔241，第四通孔241用于供可见光通过或红外光通过，且位于任意相邻的两个第四通孔241之间的部分导光板24保留。以图20所示的导光板为例，在导光板24中设置有两个第四通孔241，可见光和红外光均可从该第四通孔241无阻碍通过；同时由于相邻的两个第四通孔241之间的导光板24被保留下来，因此进入导光板24中光可以穿过位于相邻的两个第四通孔241之间的导光板24，从而可以防止位于相邻的两个第四通孔241之间的导光板24出现暗影，进而可以防止液晶面板10与位于相邻的两个第四通孔241之间的导光板24对应的区域出现暗影，提高液晶显示屏的显示效果。
以光学器件为红外光光学器件为例，至少两个第二透光孔21均包括位于导光板24中的红外光透光区，红外光透光区用于供红外光通过。示例性地，在导光板24中设置有两个红外光透光区，红外光可从该红外光透光区通过。同时由于相邻的两个红外光透光区之间的导光板24被保留下来，因此进入导光板24中光可以穿过位于相邻的两个红外 光透光区之间的导光板24，从而可以防止位于相邻的两个红外光透光区之间的导光板24出现暗影，进而可以防止液晶面板10与位于相邻的两个红外光透光区之间的导光板24对应的区域出现暗影，提高液晶显示屏的显示效果。
以光学器件为红外光光学器件为例，至少一个第二透光孔21包括贯穿导光板24的第四通孔，第四通孔用于供可见光通过；至少一个第二透光孔包括位于导光板24中的红外光透光区，红外光透光区用于供红外光通过。示例性地，在导光板24中设置有两个第二透光孔21，其中一个为贯穿导光板的第四通孔，另一个为形成在导光板中的红外光透光区，可见光可从第四通孔通过，红外光可从红透光区通过。同时位于第四通孔和红外光透光区之间的导光板24被保留下来，因此进入导光板24中光可以穿过位于第四通孔和红外光透光区之间的导光板，从而可以防止位于第四通孔和红外光透光区之间的导光板24出现暗影，进而可以防止液晶面板10与位于第四通孔和红外光透光区之间的导光板24对应的区域出现暗影，提高液晶显示屏的显示效果。
为了提高背光源20的光学效果，以及保护导光板24，请参阅图19，背光源20还包括依次堆叠设置的背板22、反射片23和光学膜材，导光板24位于反射片23和光学膜材之间；第二透光孔21还包括惯穿背板22、反射片23和光学膜材的第五通孔，且位于任意相邻的两个第五通孔之间的部分光学膜材保留。位于相邻的两个第五通孔之间的光学膜材被保留下来，可以保证光学膜材的光学效果，另外当背光源20发光时，利用被保留下来部分光学膜材可以提高对位于相邻的第四通孔之间的导光板24的发光效果，进而确保位于两个第一透光孔之间的液晶面板的显示效果。
在上述实施例中，背板22也称为背光框架，通常由金属或塑料制成。反射片23一般安装在背板22和导光板24之间，用于将从导光板24射向背板22的光线反射回导光板24，以提高光的利用率。光学膜材一般包括扩散片25和增亮膜26，其中，扩散片25用于为液晶面板10提供一个均匀的面光源，增亮膜26用于改善整个背光源20的发光效率。
在上述背光源20中，背板22和反射片23通常由不透明材料制成，导光板24、扩散片25和增亮膜26通常由透明材料制成。为了便于使光通过背板22、反射片23、扩散片25和增亮膜26，第二透光孔21还包括惯穿背板22、反射片23和光学膜材的第五通孔。当然，第五通孔还可以仅贯穿背板22和反射片23，而不贯穿扩散片25和增亮膜26，扩散片25和增亮膜26中与第五通孔对应的区域可以进行透明化处理，形成透明区域。
当第二透光孔21包括红外光透光区时，为了便于红外光光学器件成像，在一种可能的的实施例中，背板22中还设置有位于第五通孔旁的红外灯安装孔。该红外灯安装孔用于安装发射红外光线的红外灯，为红外光光学器件的成像提供红外光。
在上述背光源20中，背板22、反射片23、扩散片25和增亮膜26之间可以通过遮光胶27粘结固定，为了进一步提高背板22与导光板24之间连接稳定性，在一种可能实施例中，如图22所示，位于背板22中的第五通孔边缘设有立壁221，立壁221穿过位于背板22中的第五通孔，并伸入到导光板27内的第四通孔241中。背板22中的第五通孔可以由冲压或者钻孔工艺形成。立壁221位于背板22的内侧，且位于第五通孔的周侧边缘，立壁221可以与第五通孔一起冲压形成，也可以在形成第五通孔后再单独形成。反射片23、导光板24和光学膜材安装依次堆叠安装在背板22上时，背板22上的立壁221插入到反射片22、导光板24和光学膜材中，利用立壁221可以对反射片22、导光板24和光学膜材进行限位，同时还可以对导光板24的第四通孔的孔壁进行遮光、密封 和机械保护。
在上述实施例中，由于第一偏光片16a和第二偏光片16b中的开孔使用OCA或OCR填平，此外，液晶面板10中的信号走线可由第二透明基板14上的非透明层(如黑矩阵层)遮挡，可以确保液晶显示屏的具有较佳的外观效果。在盖板玻璃17上通常不需要做遮挡层，以避免该遮挡层遮挡光学器件的视野，并有助于减小液晶面板10中第一透光孔的尺寸。
请参阅图19和图23，背光源的顶面即在增亮膜26的表面设置有遮光胶27，背光源20通过遮光胶26与液晶面板10粘结固定。此外，背光源20朝向液晶面板10的面即增亮膜26的表面也设置有第二遮光圈28，利用该第二遮光圈28可以防止进入第一透光孔11中光向第一透光孔11外扩散。第二遮光圈28的形状如图24和图25所示，其中，图24中的第二遮光圈28形状为圆环状，其内孔的直径比第一透光孔11的直径略小，以确保对第一透光孔11周围边缘的遮光效果。图25中的第二遮光圈28形状为跑道形，其内部设置有两个内孔，内孔的直径比第一透光孔11的直径略小，以确保对第一透光孔11周围边缘的遮光效果。
不过，采用上述方案时，在背光源20与液晶面板10连接固定时，对组装公差要求较高，导致第二遮光圈28与液晶面板10中的第一透光孔11对正困难，即两者之间易出现对位不准导致的偏心现象，进而造成外观不良。如图26所示，背光源20上设置有圆环形的第二遮光圈28时，第二遮光圈28与第一透光孔11之间对位不准，导致两者之间出现偏心。如图27所示，背光源20上设置有跑道形的第二遮光圈28时，第二遮光圈28与第一透光孔11之间对位不准，导致两者之间出现偏心，而且跑道形的第二遮光圈28相比圆环形的第二遮光圈28的偏心更明显。
有鉴于此，在一种可能的地实施例中，如图28所示，取消设置在背光源20上的第二遮光圈28，将第二遮光圈28形成在液晶面板10的第一透明基板的和第一偏光片之间，并位于第一透光孔11的周围。第二遮光圈28可通过移印黑色油墨工艺制备，这种制备方法精度较高，而且将第二遮光圈28与第一透光孔11均形成在液晶面板10中，更容易保证第二遮光圈28与第一透光孔11之间对位精度，因此，大大减小了第二遮光圈28与液晶面板10的第一透光孔11的偏心值，从而改善液晶显示屏的外观。
可以理解的是，上述第二遮光圈28的内孔可与第一遮光圈18的内孔重合，第二遮光圈28的遮光区域可与第一遮光圈18的遮光区域重合；此外，第二遮光圈28可与第一遮光圈18一体形成。
进一步地，上述液晶显示屏还包括多个光学器件，液晶显示屏中的每个第二透光孔中对应设置至少一个光学器件。以图29和图30所示的液晶显示屏为例，液晶面板10中设置有两个第一透光孔11，背光源20中设置有两个第二透光孔21，第二透光孔21与第一透光孔对应，以便于光线通过第二透光孔21和第一透光孔11。在背光源20的后侧，即在背光源20背离液晶面板10的方向设置有两个光学器件30，每个第二透光孔21中对应设置一个光学器件30。通过在液晶显示屏的后侧设置多个光学器件30，这些光学器件30分别安装在至少两个第二透光孔21中，由于液晶显示屏中相邻的第二透光孔21之间的背光源20被保留下来，因此，当背光源20为液晶面板10提供背光时，位于相邻的第二透光孔21之间的背光源20中也有背光通过，使得液晶面板10中与之对应的区域不会出现暗影，从而提高液晶显示屏的显示效果。
在本实施例中液晶面板10的结构和背光源20的结构可参见上述实施例的描述，在此不再赘述。光学器件30包括红外光摄像头、可见光摄像头、闪光灯、结构光传感器、 结构光发射器、红外灯、红外传感器、三维测距发射器和三维测距接收器中的一种或多种，每个第二透光孔中可以设置一个光学器件，也可以设置两个或两个以上的光学器件，具体可以根据实际功能需要以及第二透光孔的大小、光学器件的体积大小等选定。
以液晶显示屏包括两个第二透光孔和两个光学器件为例，两个光学器件可以均为可见光摄像头；或，均为红外光摄像头；或，其中一个为可见光摄像头，另一个为红外光摄像头。当其中一个光学器件为可见光摄像头，另一个光学器件为红外光摄像头时，如图31和图32所示，位于左侧的第二透光孔用于安装红外光摄像头，位于右侧的第二透光孔用于安装可见光摄像头，且位于安装有红外光摄像头的第二透光孔旁的红外灯安装孔内安装有红外灯，红外灯用于为红外摄像头提供成像所需的红外线。
在上述实施例中，光学器件30可以通过遮光胶直接粘结固定在液晶显示屏的背面，还可以采用如下方式安装：
请参阅图29，液晶显示屏还包括中框和支架40，其中，中框用于承载液晶显示屏，以及保护液晶显示屏。支架40安装在液晶显示屏的后侧，用于承载光学器件30，并确保光学器件30与第二透光孔21之间的位置精度。具体实施时，可先将支架40与液晶显示屏的第二透光孔21所在区域精准对位，并固定在中框上，支架40与中框之间可通过遮光胶或螺钉固定连接。然后再将光学器件30安装到支架40上，光学器件30与支架40之间可通过遮光胶或螺钉固定连接，安装到支架40上的光学器件30与对应的第二透光孔21对应。采用支架40支撑光学器件30，可以提高光学器件30与第二透光孔21之间的位置精度，减小光学器件30被第二透光孔21边缘的遮光结构或第一透光孔11边缘的遮光结构的遮挡，减少光线损失，提高成像效果。
值得一提的是，在将光学器件安装到支架40上后，可通过在背光源20中背板22与中框之间，背板22与支架40之间、支架40与中框之间、以及支架40与光学器件30之间设置密封泡棉或进行点胶，以便对光学器件30进行防尘保护。
上述图29所示实施例中各光学器件30安装同一个支架40上，虽然可以提高光学器件30与第二透光孔21之间的对位精度，但还有提升空间。为了进一步提高光学器件30与第二透光孔21之间的对位精度，可以采用多个支架40。例如，请参阅图30，液晶显示屏的后侧设置有两个支架40，两个支架40分别固定安装在中框上，且每个支架40上安装有与第二透光孔21对应的至少一个光学器件30。支架40与中框的连接方式，以及光学器件30与支架40之间的连接方式与上述实施例基本相同，因此不再赘述。通过将各光学器件30安装在不同的支架40上，可以进一步降低各光学器件30之间的组装公差的影响，提高光学器件30与第二透光孔21之间的对位精度，从而减小组装公差对光学器件30的视野的遮挡影响。
为了进一步提高液晶显示屏的屏占比，相邻的两个第一透光孔11之间的间距应尽可能地小，相邻的两个第二透光孔21之间的间距也应尽可能地小。
请参阅图33，光学器件30包括长条状的器件本体，光学器件的光学中心31位于长条状的器件本体的几何中心。当两个光学器件30以图33所示方式排布时，两个光学器件30沿液晶面板10的宽度方向排布，且器件本体的长度方向与液晶面板10的宽度方向相同，即两个光学器件30的短边相对设置，采用这种排布方式，两个光学器件30的光学中心的间距较大，相应的，相邻的两个第一透光孔11之间的间距也较大，相邻的两个第二透光孔21之间的间距也较大。
有鉴于此，在一种可选的实施例中，各光学器件30沿液晶面板10的宽度方向并排 设置，且器件本体的长度方向与液晶面板10的宽度方向垂直。请参阅图3234，两个光学器件30沿液晶面板10的宽度方向并排设置，器件本体的长度方向与液晶面板10的宽度方向垂直。与图3133相比，图3234中所示的两个光学器件30的结构不变，通过改变两个光学器件30的排布方式，使得两个光学器件30的光学中心的间距变小，即图3234中所示的两个光学器件30的光学中心的间距小于图3133中所示的两个光学器件30的光学中心的间距，从而可以减小相邻两个第一透光孔11之间的间距以及相邻的两个第二透光孔21之间的间距，进而提高液晶显示屏的屏占比。
在另一种可选的实施例中，请参阅图35，光学器件30包括长条状的器件本体，光学器件的光学中心31靠近器件本体的一侧短边设置；相邻的两个光学器件30中，其中一个器件本体中距离其光学中心最近的一侧短边与另一个器件本体中距离其光学中心最近的一侧短边相对设置。与图33相比，图35中的两个光学器件30的排布方式不变，通过改变两个光学器件30的光学中心在器件本体中的位置，使得两个光学器件30的光学中心尽量彼此靠近对方设置，或者说，每个光学器件30的光学中心在其器件本体中偏心设置，在与图33中排布方式相同的情况下，可以使得两个光学器件30的光学中心的间距最小，从而可以减小相邻两个第一透光孔11之间的间距以及相邻的两个第二透光孔21之间的间距，进而提高液晶显示屏的屏占比。
基于上述实施例，本发明其他实施例还提供了一种移动终端，该移动终端包括上述实施例所述的液晶显示屏。在上述实施例中，移动终端包含但不限于手机、显示器、便携机、平板电脑、手表、手环。由于该移动终端包括上述实施例所述的液晶显示屏，因此该移动终端也具有上述液晶显示屏的优点，具体可参见上面实施例的相关描述，在此不再赘述。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同或相似部分相互参见即可。对于实施例公开的移动终端而言，由于其与上述实施例公开的液晶显示屏相对应，所以描述的比较简单，相关之处参见液晶显示屏的相关部分说明即可。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，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，或者对其中部分或者全部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发明各实施例技术方案的范围。
实施例：
1、一种液晶显示屏，其特征在于，包括液晶面板和设置于所述液晶面板背面的背光源，其中：
所述液晶面板的设定区域内设置有至少两个第一透光孔，所述背光源中设置有至少两个第二透光孔，所述第二透光孔与所述第一透光孔一一对应，所述第一透光孔和所述第二透光孔用于供光学器件采集的光通过，所述背光源中位于相邻的所述第二透光孔之间的区域有背 光通过。
2、根据权利要求1所述的液晶显示屏，其特征在于，所述液晶面板包括相对设置的第一透明基板和第二透明基板，以及位于所述第一透明基板和第二透明基板之间的中间功能层；
所述第一透光孔包括位于所述中间功能层中的第一透光区。
3、根据权利要求2所述的液晶显示屏，其特征在于，所述中间功能层包括至少多层透明层和多层非透明层；
所述第一透光区包括贯穿各所述非透明层的第一通孔，且位于任意相邻的两个所述第一通孔之间的部分所述液晶面板中的像素保留。
4、根据权利要求2所述的液晶显示屏，其特征在于，所述液晶面板还包括设置于所述第一透明基板远离所述中间功能层的面上的第一偏光片，以及设置于所述第二透明基板远离所述中间功能层的面上的第二偏光片；
所述第一透光孔包括贯穿所述第一偏光片的第二通孔或位于所述第一偏光片中供所有光均可通过的第二完全透明区，以及贯穿所述第二偏光片的第三通孔或位于所述第二偏光片中供所有光均可通过的第三完全透明区。
5、根据权利要求4所述的液晶显示屏，其特征在于，位于所述第一偏光片中的各所述第二通孔相连通形成长条形孔，和/或，位于所述第二偏光片中的各所述第三通孔相连通形成长条形孔。
6、根据权利要求5所述的液晶显示屏，其特征在于，所述长条形孔为跑道形孔、椭圆形孔或多边形孔。
7、根据权利要求5所述的液晶显示屏，其特征在于，所述第一透明基板远离所述中间功能层的面，或，所述第二透明基板远离所述中间功能层的面，或，所述第一透明基板和所述第二透明基板之间设置有第一遮光圈，所述第一遮光圈用于遮挡所述第一透光孔的边缘以及位于相邻的两个所述第一透光孔之间的区域。
8、根据权利要求4所述的液晶显示屏，其特征在于，所述第二通孔中设置有填平所述第二通孔的透光填充层，和/或，所述第三通孔中设置有填平所述第三通孔的透光填充层。
9、根据权利要求1-8任一项所述的液晶显示屏，其特征在于，所述液晶面板包括多条信号走线，经过所述第一透光孔的所述信号走线在所述第一透光孔的透光孔边框中布线。
10、根据权利要求1所述的液晶显示屏，其特征在于，所述背光源包括导光板，所述至少两个第二透光孔均包括贯穿所述导光板的第四通孔，所述第四通孔用于供可见光通过或红外光通过，且位于任意相邻的两个所述第四通孔之间的部分所述导光板保留。
11、根据权利要求1所述的液晶显示屏，其特征在于，所述背光源包括导光板，所述至少两个第二透光孔均包括位于所述导光板中的红外光透光区，所述红外光透光区用于供红外光通过。
12、根据权利要求1所述的液晶显示屏，其特征在于，所述背光源包括导光板；
所述至少两个第二透光孔中，至少一个所述第二透光孔包括贯穿所述导光板的第四通孔，所述第四通孔用于供可见光通过；其余所述第二透光孔包括位于所述导光板中的红外光透光区，所述红外光透光区用于供红外光通过。
13、根据权利要求10-12任一项所述的液晶显示屏，其特征在于，所述背光源还包括 依次堆叠设置的背板、反射片和光学膜材，所述导光板位于所述反射片和所述光学膜材之间；
所述第二透光孔还包括惯穿所述背板、反射片和光学膜材的第五通孔，且位于任意相邻的两个所述第五通孔之间的部分所述光学膜材保留。
14、根据权利要求13所述的液晶显示屏，其特征在于，位于所述背板中的所述第五通孔边缘设有立壁，所述立壁穿过所述背板中的第五通孔，并伸入到所述导光板内的第四通孔中。
15、根据权利要求13所述的液晶显示屏，其特征在于，所述第二透光孔包括所述红外光透光区时，所述背板中还设置有位于所述第五通孔旁的红外灯安装孔。
16、根据权利要求1所述的液晶显示屏，其特征在于，所述液晶显示屏中的每个第二透光孔中对应设置有至少一个光学器件。
17、根据权利要求16所述的液晶显示屏，其特征在于，所述液晶显示屏还包括中框，以及至少两个支架；
所述液晶显示屏安装在所述中框中；
各所述支架固定安装在所述中框上，且每个所述支架上安装有与所述第二透光孔对应的至少一个所述光学器件。
18、根据权利要求16或17所述的液晶显示屏，其特征在于，所述光学器件包括长条状的器件本体，所述光学器件的光学中心位于所述器件本体的几何中心；
各所述光学器件沿所述液晶面板的宽度方向并排设置，且所述器件本体的长度方向与所述液晶面板的宽度方向垂直。
19、根据权利要求16或17所述的液晶显示屏，其特征在于，所述光学器件包括长条状的器件本体，所述光学器件的光学中心靠近所述器件本体的一侧短边设置；
相邻的两个所述光学器件中，其中一个所述器件本体中距离其所述光学中心最近的一侧短边与另一个所述器件本体中距离其所述光学中心最近的一侧短边相对设置。
20、根据权利要求16所述的液晶显示屏，其特征在于，所述光学器件包括红外光摄像头、可见光摄像头、闪光灯、结构光传感器、结构光发射器、红外灯、红外传感器、三维测距发射器和三维测距接收器中的一种或多种。
21、根据权利要求20所述的液晶显示屏，其特征在于，所述第二透光孔的数量为两个，其中一个所述第二透光孔用于安装红外光摄像头，另一个所述第二透光孔用于安装可见光摄像头，且位于安装有所述红外光摄像头的第二透光孔旁的红外灯安装孔内安装有红外灯。
22、一种移动终端，其特征在于，所述移动终端包括如权利要求1-21任一项所述的液晶显示屏。

Claims (15)

  1. 一种液晶显示屏，其特征在于，包括液晶面板和设置于所述液晶面板背面的背光源，其中：
    所述液晶面板的设定区域内设置有至少两个第一透光孔，所述背光源中设置有至少两个第二透光孔，所述第二透光孔与所述第一透光孔一一对应，所述第一透光孔和所述第二透光孔用于供光学器件采集的光通过，所述背光源中位于相邻的所述第二透光孔之间的区域有背光通过。
  2. 根据权利要求1所述的液晶显示屏，其特征在于，所述液晶面板包括相对设置的第一透明基板和第二透明基板，以及位于所述第一透明基板和第二透明基板之间的中间功能层；
    所述第一透光孔包括位于所述中间功能层中的第一透光区。
  3. 根据权利要求2所述的液晶显示屏，其特征在于，所述中间功能层包括至少多层透明层和多层非透明层；
    所述第一透光区包括贯穿各所述非透明层的第一通孔，且位于任意相邻的两个所述第一通孔之间的部分所述液晶面板中的像素保留。
  4. 根据权利要求2所述的液晶显示屏，其特征在于，所述液晶面板还包括设置于所述第一透明基板远离所述中间功能层的面上的第一偏光片，以及设置于所述第二透明基板远离所述中间功能层的面上的第二偏光片；
    所述第一透光孔包括贯穿所述第一偏光片的第二通孔或位于所述第一偏光片中供所有光均可通过的第二完全透明区，以及贯穿所述第二偏光片的第三通孔或位于所述第二偏光片中供所有光均可通过的第三完全透明区。
  5. 根据权利要求4所述的液晶显示屏，其特征在于，位于所述第一偏光片中的各所述第二通孔相连通形成长条形孔，和/或，位于所述第二偏光片中的各所述第三通孔相连通形成长条形孔。
  6. 根据权利要求4所述的液晶显示屏，其特征在于，所述第二通孔中设置有填平所述第二通孔的透光填充层，和/或，所述第三通孔中设置有填平所述第三通孔的透光填充层。
  7. 根据权利要求1-6任一项所述的液晶显示屏，其特征在于，所述液晶面板包括多条信号走线，经过所述第一透光孔的所述信号走线在所述第一透光孔的透光孔边框中布线。
  8. 根据权利要求1所述的液晶显示屏，其特征在于，所述背光源包括导光板，所述至少两个第二透光孔均包括贯穿所述导光板的第四通孔，所述第四通孔用于供可见光通过或红外光通过，且位于任意相邻的两个所述第四通孔之间的部分所述导光板保留。
  9. 根据权利要求1所述的液晶显示屏，其特征在于，所述背光源包括导光板，所述至少两个第二透光孔均包括位于所述导光板中的红外光透光区，所述红外光透光区用于供红外光通过。
  10. 根据权利要求1所述的液晶显示屏，其特征在于，所述背光源包括导光板；
    所述至少两个第二透光孔中，至少一个所述第二透光孔包括贯穿所述导光板的第四通孔，所述第四通孔用于供可见光通过；其余所述第二透光孔包括位于所述导光板中的红外光透光区，所述红外光透光区用于供红外光通过。
  11. 根据权利要求8-10任一项所述的液晶显示屏，其特征在于，所述背光源还包括依次堆叠设置的背板、反射片和光学膜材，所述导光板位于所述反射片和所述光学膜材之间；
    所述第二透光孔还包括惯穿所述背板、反射片和光学膜材的第五通孔，且位于任意相邻的两个所述第五通孔之间的部分所述光学膜材保留。
  12. 根据权利要求11所述的液晶显示屏，其特征在于，所述第二透光孔包括所述红外光透光区时，所述背板中还设置有位于所述第五通孔旁的红外灯安装孔。
  13. 根据权利要求1所述的液晶显示屏，其特征在于，所述液晶显示屏中的每个第二透光孔中对应设置有至少一个光学器件；
    所述液晶显示屏安装在中框中；
    至少两个支架固定安装在所述中框上，且每个所述支架上安装有与所述第二透光孔对应的至少一个所述光学器件。
  14. 根据权利要求13所述的液晶显示屏，其特征在于，所述第二透光孔的数量为两个，其中一个所述第二透光孔用于安装红外光摄像头，另一个所述第二透光孔用于安装可见光摄像头，且位于安装有所述红外光摄像头的第二透光孔旁的红外灯安装孔内安装有红外灯。
  15. 一种移动终端，其特征在于，所述移动终端包括如权利要求1-14任一项所述的液晶显示屏。
PCT/CN2020/095781 2019-06-14 2020-06-12 液晶显示屏及移动终端 Ceased WO2020249072A1 (zh)

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