CN114077101A - Display device, head-up display system and vehicle - Google Patents

Display device, head-up display system and vehicle Download PDF

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Publication number
CN114077101A
CN114077101A CN202111542523.5A CN202111542523A CN114077101A CN 114077101 A CN114077101 A CN 114077101A CN 202111542523 A CN202111542523 A CN 202111542523A CN 114077101 A CN114077101 A CN 114077101A
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CN
China
Prior art keywords
display device
polarizer
display
display panel
light
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.)
Pending
Application number
CN202111542523.5A
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Chinese (zh)
Inventor
马红虎
李礼操
刘风雷
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Zhejiang Crystal Optech Co Ltd
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Zhejiang Crystal Optech Co Ltd
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Priority to CN202111542523.5A priority Critical patent/CN114077101A/en
Publication of CN114077101A publication Critical patent/CN114077101A/en
Pending 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
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • 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
    • G02F1/1313—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 specially adapted for a particular application
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133536—Reflective polarizers
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/40—Arrangements for improving the aperture ratio

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)

Abstract

The invention discloses a display device, a head-up display system and a vehicle, and relates to the technical field of head-up display. According to the display device provided by the invention, a color filter layer in the existing color display device is cancelled, for each pixel unit, the RGB three sub-pixels are not required to be divided, and color display can be realized by matching with a three-color light source, so that the cost and the power consumption are reduced, and the aperture opening ratio and the light transmittance are effectively improved.

Description

Display device, head-up display system and vehicle
Technical Field
The invention relates to the technical field of head-up display, in particular to a display device, a head-up display system and a vehicle.
Background
The head-up display is called a head-up display system, which is called a HUD for short, and refers to a multifunctional instrument panel which is operated by a driver in a blind mode. The HUD projects important driving information such as speed per hour, navigation and the like to a windshield in front of a driver, so that the driver can see the important driving information such as speed per hour, navigation and the like without lowering head or turning head as much as possible. The auxiliary driving method has better help for auxiliary driving and improves the driving experience of the driver.
When the HUD needs to display a navigation map and other complex images, the display device generally needs color display, and a display area of the display device for implementing color display in the prior art includes a plurality of pixel units arranged in a matrix form, each pixel unit includes three subpixels of RGB, taking a TFT-LCD (thin film transistor liquid crystal display) as an example, each subpixel in each pixel unit on the array substrate is controlled by a switching transistor to transmit a backlight source, thereby implementing color display of the entire display device.
Because each sub-pixel of the display device needs to be controlled by the switching transistor independently, the power consumption of the array substrate of the display device is large, the cost is high, and the switching transistor also influences the improvement of the aperture ratio of the pixel unit.
Disclosure of Invention
The invention aims to provide a display device, a head-up display system and a vehicle, which can improve the aperture ratio of a pixel unit and the light transmittance of the display device and reduce the backlight power consumption of the display device.
The embodiment of the invention is realized by the following steps:
a display device comprises a backlight source and a display panel, wherein a display area of the display panel is divided into a plurality of pixel units capable of controlling light transmission respectively, the backlight source comprises a plurality of light source units corresponding to the pixel units respectively, each light source unit comprises a red light source, a green light source and a blue light source which are controlled to emit light respectively, and the light source units emit mixed color light beams through the corresponding pixel units so as to realize color pictures of the display device.
Optionally, as an implementable manner, the display panel includes an array substrate, a liquid crystal layer, a black matrix, and a cover plate, which are sequentially disposed, and the liquid crystal layer is divided into liquid crystal cells corresponding to the pixel units by the black matrix.
Optionally, as an implementable manner, a first polarizer is disposed on the light incident side of the display panel.
Optionally, as an implementable manner, a second polarizer is further disposed on the light exit side of the display panel.
Optionally, as an implementable manner, the first polarizer and the second polarizer are both reflective polarizers.
Optionally, as an implementable manner, the transmission axis direction of the first polarizer is the same as or perpendicular to the transmission axis direction of the second polarizer.
Optionally, as an implementable manner, an included angle between the transmission axis direction of the first polarizer and the panel surface of the display panel is 0 to 90 °, and an included angle between the transmission axis direction of the second polarizer and the panel surface of the display panel is 0 to 90 °.
Optionally, as an implementable manner, the display device further includes a diffusion film disposed between the backlight source and the display panel, the diffusion film is integrally disposed with the first polarizer, and the diffusion film is configured to homogenize and diffuse light beams emitted by the backlight source.
A head-up display system comprising a display device as claimed in any one of the preceding claims.
A vehicle comprises a vehicle body and a head-up display system, wherein the head-up display system is arranged on the vehicle body, and a receiving end of the head-up display system is positioned on a windshield of the vehicle body.
The embodiment of the invention has the beneficial effects that:
the display device provided by the invention comprises a backlight source and a display panel, wherein a display area of the display panel is divided into a plurality of pixel units which can respectively control light transmission, the backlight source comprises a plurality of light source units which respectively correspond to the pixel units, each light source unit comprises a red light source, a green light source and a blue light source which are respectively controlled to emit light, and the light source units emit mixed color light beams through the corresponding pixel units so as to realize the color picture of the display device. According to the display device, a color filter layer in the existing color display device is omitted, three RGB sub-pixels do not need to be divided for each pixel unit, and color display can be achieved by matching with a three-color light source, so that the cost and the power consumption are reduced, and the aperture opening ratio and the light transmittance are effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a color filter layer in a prior art color display device;
fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a display panel in a display device according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an operation of a display device according to an embodiment of the present invention.
Icon: 10-a color filter layer; 11-a color pixel cell; 12-a switching transistor; 100-a display device; 110-a backlight source; 120-a display panel; 121-pixel cells; 122-an array substrate; 123-a liquid crystal layer; 124-black matrix; 125-cover plate; 130-a first polarizer; 140-a second polarizer; 150-diffusion membrane.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Prior art color display devices typically comprise: an upper polarizer, a color filter layer 10, a color film substrate provided with a black matrix, a liquid crystal layer, an array substrate, a lower polarizer and a backlight source. In the color display device, the liquid crystal itself is not luminous, light emitted from the backlight passes through the liquid crystal, and passes through the color filter layer 10 of the color film substrate, referring to fig. 1, the color filter layer 10 includes a plurality of color pixel units 11 arranged in a matrix form, each color pixel unit 11 includes three sub-pixels of RGB (Red Green Blue ), taking a TFT-LCD as an example, the transmission of the backlight in each sub-pixel is controlled by the switching transistor 12, thereby realizing the color display of the whole color display device.
However, in the conventional color display device, each pixel unit needs to be divided into three sub-pixels, and each sub-pixel needs to be independently controlled, so that the power consumption of the color display device is high, the cost is high, and the aperture ratio is difficult to improve. In view of this, the present application is specifically made.
Referring to fig. 2 and fig. 3, the present embodiment provides a display device 100, which includes a backlight 110 and a display panel 120, a display area of the display panel 120 is divided into a plurality of pixel units 121 capable of controlling light transmission respectively, the backlight 110 includes a plurality of light source units respectively corresponding to the pixel units 121, each light source unit includes a red light source, a green light source and a blue light source respectively controlled to emit light, and the light source units emit mixed color light beams through the corresponding pixel units 121, so as to implement a color picture of the display device 100.
The backlight source 110 includes a plurality of light source units corresponding to the pixel units 121 in the display panel 120 one by one, each light source unit independently emits light, and can emit light beams with different colors to the corresponding pixel units 121 by adjusting the ratio of the three-color light sources, and the light beams with different colors respectively pass through the pixel units 121 to jointly form a mixed color beam and then are emitted by the display panel 120 to form a color picture.
Above-mentioned display device 100 has cancelled the colored filter layer 10 among the current colored display device 100, to every pixel 121, need not to divide the three sub-pixel of RGB again, only needs a pixel, cooperates the three-colour light source again, can realize colored demonstration, and the cost is reduced and the consumption has effectively improved aperture ratio and luminousness.
Optionally, in an implementable manner of the embodiment of the present invention, the display panel 120 includes an array substrate 122, a liquid crystal layer 123, a black matrix 124 and a cover plate 125, which are sequentially disposed, and the liquid crystal layer 123 is divided into liquid crystal cells corresponding to the pixel units 121 by the black matrix 124.
The array substrate 122 and the cover plate 125 are arranged in a cell-to-cell manner, the liquid crystal layer 123 and the black matrix 124 are located between the array substrate 122 and the cover plate 125, the black matrix 124 is an opaque light shielding layer and is provided with a plurality of light through holes, the light through holes are arranged in one-to-one correspondence with the pixel units 121, and the black matrix 124 divides the liquid crystal layer 123 into a plurality of liquid crystal units corresponding to the pixel units 121 through the light through holes. Light beams emitted by the light source unit of the backlight source 110 are incident into the liquid crystal unit, and under the action of an electric field, the arrangement direction of liquid crystal molecules in the liquid crystal unit is changed, so that the light transmittance of the liquid crystal unit is changed, the light beams are emitted through the liquid crystal, and color pictures with different patterns and brightness are obtained by adjusting the ratio of three-color light sources and the arrangement of the liquid crystal molecules.
Illustratively, the liquid crystal layer 123 is a TN liquid crystal layer, and the TN liquid crystal layer can rotate the polarization direction of the passing linearly polarized light by 90 °, and the application of an electric field to the TN liquid crystal layer can cancel the polarization characteristic of the liquid crystal layer 123, so that the polarization direction is not changed after the linearly polarized light passes through the liquid crystal layer 123, that is, the presence or absence of the electric field in the display panel 120 is controlled by controlling whether a voltage is applied to the transparent electrode layer of the TN liquid crystal layer, thereby further controlling the polarization state of the polarized light after passing through the liquid crystal layer 123.
Referring to fig. 2 and fig. 4, in an alternative implementation manner of the embodiment of the invention, a first polarizer 130 is disposed on the light incident side of the display panel 120. The first polarizer 130 passes a light beam oscillating in a specific direction among light beams emitted from the backlight 110, and does not pass light beams in other oscillating directions.
Optionally, in an implementation manner of the embodiment of the present invention, a second polarizer 140 is further disposed on the light emitting side of the display panel 120.
The second polarizer 140 performs a second filtering on the light beam filtered by the first polarizer 130, so that the light beam vibrating in a specific direction is emitted out of the display panel 120, thereby implementing color imaging of the display panel 120. In addition, the second polarizer 140 may also filter the sunlight emitted to the display panel 120 to prevent the temperature of the display panel 120 from being too high due to the backflow of the sunlight, thereby protecting the display panel 120.
Optionally, in an implementation manner of the embodiment of the invention, the first polarizer 130 and the second polarizer 140 are both reflective polarizers. The reflective polarizer only transmits the light beam with the vibration direction parallel to the transmission axis, and filters the light beam with other vibration directions in a reflective manner, so that the light beam is not absorbed by the reflective polarizer, the influence of the non-display light beam on the display panel 120 and peripheral devices can be reduced, and the display device 100 can be prevented from heating due to the absorption of the light beam.
Alternatively, in an implementation manner of the embodiment of the invention, the transmission axis direction of the first polarizer 130 is the same as or perpendicular to the transmission axis direction of the second polarizer 140.
The arrangement direction of the transmission axis of the second polarizer 140 depends on the characteristics of the liquid crystal in the liquid crystal layer 123, and if the liquid crystal changes the polarization direction of the incident light beam by 90 °, the transmission axis direction of the second polarizer 140 is perpendicular to the transmission axis direction of the first polarizer 130, and if the liquid crystal changes the polarization direction of the incident light beam by 180 °, the transmission axis direction of the second polarizer 140 is the same as the transmission axis direction of the first polarizer 130.
Optionally, in an implementation manner of the embodiment of the present invention, an included angle between the transmission axis direction of the first polarizer 130 and the panel surface of the display panel 120 is 0 to 90 °, an included angle between the transmission axis direction of the second polarizer 140 and the panel surface of the display panel 120 is 0 to 90 °, and the selection may be performed according to actual requirements and characteristics of liquid crystals in the liquid crystal layer 123.
Optionally, in an implementation manner of the embodiment of the present invention, the display device further includes a diffusion film 150 disposed between the backlight source 110 and the display panel 120, the diffusion film 150 is integrated with the first polarizer 130, the diffusion film 150 is used for performing uniform diffusion on the light beam emitted by the backlight source 110, and the diffusion film 150 is integrated with the first polarizer 130, which is beneficial to reducing the design difficulty in actual use and simplifying the assembly process.
An embodiment of the present invention also discloses a head-up display system including the display device 100 as described above. The head-up display system includes the same structure and advantageous effects as the display device 100 in the foregoing embodiment. The structure and the advantages of the display device 100 have been described in detail in the foregoing embodiments, and are not repeated herein.
The embodiment of the invention also discloses a vehicle which comprises a vehicle body and the head-up display system, wherein the head-up display system is arranged on the vehicle body, and the receiving end of the head-up display system is positioned on the windshield of the vehicle body.
The vehicle includes the same structure and advantageous effects as those of the head-up display system in the foregoing embodiment, which in turn includes the same structure and advantageous effects as those of the display device 100 in the foregoing embodiment. The structure and the advantages of the display device 100 have been described in detail in the foregoing embodiments, and are not repeated herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The display device is characterized by comprising a backlight source and a display panel, wherein a display area of the display panel is divided into a plurality of pixel units which can be controlled to transmit light respectively, the backlight source comprises a plurality of light source units which respectively correspond to the pixel units, each light source unit comprises a red light source, a green light source and a blue light source which are controlled to emit light respectively, and the light source units emit mixed color light beams through the corresponding pixel units so as to realize color pictures of the display device.
2. The display device according to claim 1, wherein the display panel includes an array substrate, a liquid crystal layer, a black matrix, and a cover plate, which are sequentially disposed, and the liquid crystal layer is divided into liquid crystal cells corresponding to the pixel cells by the black matrix.
3. The display device according to claim 2, wherein a first polarizer is provided on a light incident side of the display panel.
4. The display device according to claim 3, wherein a second polarizer is further provided on a light exit side of the display panel.
5. The display device according to claim 4, wherein the first polarizer and the second polarizer are both reflective polarizers.
6. The display device according to claim 4, wherein the direction of the transmission axis of the first polarizer is the same as or perpendicular to the direction of the transmission axis of the second polarizer.
7. The display device according to claim 4, wherein an included angle between a transmission axis direction of the first polarizer and the display panel surface is 0 ° to 90 °, and an included angle between a transmission axis direction of the second polarizer and the display panel surface is 0 ° to 90 °.
8. The display device according to claim 3, further comprising a diffuser film disposed between the backlight source and the display panel, the diffuser film being integrally provided with the first polarizer, the diffuser film being configured to uniformly diffuse the light beam emitted from the backlight source.
9. A head-up display system comprising a display device according to any one of claims 1 to 8.
10. A vehicle characterized by comprising a vehicle body and the head-up display system as claimed in claim 9, the head-up display system being provided on the vehicle body with a receiving end of the head-up display system being located on a windshield of the vehicle body.
CN202111542523.5A 2021-12-14 2021-12-14 Display device, head-up display system and vehicle Pending CN114077101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111542523.5A CN114077101A (en) 2021-12-14 2021-12-14 Display device, head-up display system and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111542523.5A CN114077101A (en) 2021-12-14 2021-12-14 Display device, head-up display system and vehicle

Publications (1)

Publication Number Publication Date
CN114077101A true CN114077101A (en) 2022-02-22

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