CN113391451B - Display device and automobile - Google Patents

Display device and automobile Download PDF

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Publication number
CN113391451B
CN113391451B CN202110739054.XA CN202110739054A CN113391451B CN 113391451 B CN113391451 B CN 113391451B CN 202110739054 A CN202110739054 A CN 202110739054A CN 113391451 B CN113391451 B CN 113391451B
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electrode
color
substrate
display panel
display device
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CN113391451A (en
Inventor
杨晓东
顾跃凤
秦刚
王建栋
李雄平
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Shanghai Tianma Microelectronics Co Ltd
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Shanghai Tianma Microelectronics Co Ltd
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    • 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
    • G02F1/133—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
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Geometry (AREA)
  • Liquid Crystal (AREA)

Abstract

The invention provides a display device and an automobile, comprising a display panel, a backlight source, a plane reflector and a curved reflector, wherein the display panel comprises: a first substrate; the pixel electrodes are positioned on the same side of the first substrate; the plurality of pixel electrodes are arranged in an array along a first direction and a second direction, and the first direction is crossed with the second direction; any two pixel electrodes are electrically insulated; the plurality of pixel electrodes comprise a reflecting electrode and a transmitting electrode, one pixel electrode comprises the reflecting electrode or the transmitting electrode, the reflecting electrode comprises a reflecting material and is used for reflecting a first part of light in the backlight, and the transmitting electrode comprises a transmitting material and is used for transmitting a second part of light in the backlight; the backlight source and the display panel have a non-zero included angle. The invention realizes that one display panel simultaneously displays two pictures, and forms a long-range virtual image and a close-range virtual image by making the imaging distances of the two pictures different, thereby realizing the clear projection of two images with different distances in the display device of head-up display.

Description

Display device and automobile
Technical Field
The invention relates to the technical field of display, in particular to a display device and an automobile.
Background
With the development of Display technology, liquid Crystal Display (LCD) panels and Organic Light Emitting Diode (0 LED) Display panels gradually become two major Display panels in the Display field, and LCD panels and OLED Display panels are widely used in devices (including Display devices) or scenes with integrated Display functions, which can be known by those skilled in the art, such as computers, mobile phones, wearable devices, and vehicles.
Head-Up Display (Head Up Display), HUD for short, be applied to the comprehensive electronic Display equipment on car or the aircraft, can with navigation information, information such as flight parameter is with the figure, the form of character, project on the dead ahead windshield of driver's seat through optical component, highly approximately become the level with driver's eyes, when the driver sees through HUD past, can be easy fuse together external scene and the data that HUD shows, make the driver remain the posture of Head-Up all the time, reduce between Head-Up and the low Head and ignore the quick change of external environment and the delay and the discomfort that glasses focus need constantly adjust the production.
In prior art, need to adopt two sets of HUD equipment just can generate two sets of HUD formation of image light paths, realize the projection of two different distances of augmented reality new line display, have the shortcoming of occupying great car space to two sets of HUD formation of image light paths interfere with each other, can't present clear image in driver the place ahead.
Disclosure of Invention
The invention provides a display device and an automobile, which are used for realizing that one display panel simultaneously displays two pictures, and forming a long-range view virtual image and a close-range view virtual image by enabling the imaging distances of the two pictures to be different, so that the clear projection of two images at different distances in the display device of head-up display is realized.
In a first aspect, an embodiment of the present invention provides a display device disposed in an automobile, where the automobile includes a windshield and includes a display panel, and the display panel includes:
a first substrate;
the pixel electrodes are positioned on the same side of the first substrate; the plurality of pixel electrodes are arranged in an array along a first direction and a second direction, and the first direction is crossed with the second direction; any two pixel electrodes are electrically insulated;
the plurality of pixel electrodes comprise a reflecting electrode and a transmitting electrode, one pixel electrode comprises the reflecting electrode or the transmitting electrode, the reflecting electrode comprises a reflecting material and is used for reflecting a first part of light in the backlight, and the transmitting electrode comprises a transmitting material and is used for transmitting a second part of light in the backlight;
the display device also comprises a backlight source, a plane reflector and a curved reflector, wherein the backlight source is positioned on one side of the pixel electrode, which is far away from the first substrate, and a non-zero included angle is formed between the backlight source and the display panel; the plane mirror and the curved mirror are located on an optical path between the display panel and the windshield.
In a second aspect, an embodiment of the present invention provides an automobile, including the display device of the first aspect.
In the display device provided by the embodiment of the invention, the display panel comprises a plurality of pixel electrodes, and any two pixel electrodes are electrically insulated. One pixel electrode includes a reflective electrode or a transmissive electrode. Therefore, a first part of light in the backlight irradiates the display panel and is reflected by the reflecting electrode in the display panel to form a close-range virtual image. A second part of light in the backlight irradiates the display panel and continuously propagates through a transmission electrode in the display panel to form a perspective virtual image. Therefore, the display panel in the embodiment of the invention can simultaneously display two pictures, and a far-view virtual image and a near-view virtual image are formed by making the imaging distances of the two pictures different. Clear projection of two images at different distances in the display device 100 of the head-up display is realized.
Drawings
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display device according to an embodiment of the present invention;
fig. 3 is a schematic top view of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view along the direction AA' in FIG. 3;
fig. 5 is a schematic cross-sectional view illustrating another display panel according to an embodiment of the invention;
fig. 6 is a schematic top view of another display panel according to an embodiment of the present invention;
fig. 7 is a schematic top view of another display panel according to an embodiment of the present invention;
fig. 8 is a schematic cross-sectional view illustrating another display panel according to an embodiment of the invention;
fig. 9 is a schematic optical path diagram of a display panel according to an embodiment of the present invention;
fig. 10 is a schematic cross-sectional view illustrating another display panel according to an embodiment of the invention;
fig. 11 is a schematic optical path diagram of another display panel according to an embodiment of the present invention;
fig. 12 is a schematic top view illustrating another display panel according to an embodiment of the present invention;
FIG. 13 is a schematic cross-sectional view taken along the direction BB' in FIG. 12;
fig. 14 is a schematic cross-sectional view illustrating another display panel according to an embodiment of the invention;
fig. 15 is a schematic cross-sectional view illustrating another display panel according to an embodiment of the invention;
fig. 16 is a schematic top view illustrating another display panel according to an embodiment of the present invention;
fig. 17 is a schematic cross-sectional view illustrating another display panel according to an embodiment of the invention;
fig. 18 is a schematic cross-sectional view illustrating another display panel according to an embodiment of the invention;
fig. 19 is a schematic view of an automobile according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of another display device according to an embodiment of the present invention, fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention, fig. 4 is a schematic structural diagram of a cross section along the direction AA' in fig. 3, and referring to fig. 3 and fig. 4, and fig. 1 to fig. 4, a display device 100 includes a display panel 110. The display panel 110 includes a first substrate 11 and a plurality of pixel electrodes 12. The plurality of pixel electrodes 12 are located on the same side of the first substrate 11. The plurality of pixel electrodes 12 are arranged in an array along a first direction and a second direction, the first direction crossing the second direction. In one embodiment, the first direction and the second direction may be perpendicular to each other. In another embodiment, the first direction and the second direction may not be perpendicular and may form an included angle greater than 0 ° and less than 90 °. Any two pixel electrodes 12 are electrically insulated from each other. The plurality of pixel electrodes 12 include a reflective electrode 121 and a transmissive electrode 122, and one pixel electrode 12 includes either the reflective electrode 121 or the transmissive electrode 122, i.e., one pixel electrode 12 may be one reflective electrode 121, or one pixel electrode 12 may be one transmissive electrode 122. The reflective electrode 121 includes a reflective material, and the reflective electrode 121 has a high reflectivity and is used for reflecting a first portion of light L1 in the backlight. The reflective material may include, for example, a metal material, and for example, a metal material such as silver or aluminum may be used to form the reflective electrode 121. The transmissive electrode 122 includes a light transmissive material having a high transmittance for transmitting the second portion of the light L2 in the backlight. The light-transmitting material may include, for example, a metal oxide material, and the transmissive electrode 122 may be formed using, for example, a metal oxide material such as indium tin oxide.
With continued reference to fig. 1-2, the display device 100 also includes a backlight 120. The backlight source 120 is located on a side of the pixel electrode 12 away from the first substrate 11, and a non-zero included angle exists between the backlight source 120 and the display panel 110. The backlight 120 is used to provide a backlight with oblique incidence for the display panel 110. Light emitted from the backlight 120 is obliquely incident on the display panel, and a first portion of light L1 in the backlight irradiates the reflective electrode 121 and is reflected by the reflective electrode 121 toward the backlight 120. The second part of the light L2 in the backlight irradiates the transmissive electrode 122 and continues to propagate through the transmissive electrode 122 toward the side far away from the backlight 120. The display device 100 is provided in an automobile, which includes a windshield 200. The display device 100 further includes a flat mirror 130 and a curved mirror 140, and the flat mirror 130 and the curved mirror 140 are located on an optical path between the display panel 110 and the windshield 200. The display device 100 provided by the embodiment of the invention is arranged in an automobile, and the display device 100 is a vehicle-mounted display device. The light emitted from the display device 100 is reflected by the windshield 200 and then projected to the human eyes, so that the user does not need to look down at the instrument panel, and the head-up display is realized.
Exemplarily, referring to fig. 1 and 2, a first portion of light L1 in the backlight is irradiated to the display panel 110 and reflected by the reflective electrode 121 in the display panel 110 toward the backlight 120 side, and the reflected light is irradiated to the curved surface reflector 140, reflected by the curved surface reflector 140 to the windshield 200, and finally imaged on human eyes to form a near virtual image, that is, a near virtual image IM1. The second part of light L2 in the backlight irradiates the display panel 110, and passes through the transmission electrode 122 in the display panel 110 to continue to propagate toward the side far away from the backlight 120, the transmission light irradiates the plane mirror 130, is reflected to the curved surface mirror 140 by the plane mirror 130, is reflected to the windshield 200 by the curved surface mirror 140, and finally forms an image on human eyes to form a remote virtual image, that is, a distant view virtual image IM2. The close-range virtual image IM1 and the distant-range virtual image IM2 are fused with scenery outside the automobile, and the scenery outside the automobile can comprise roads, traffic lights and the like. The display device 100 according to the embodiment of the present invention forms a distant view virtual image IM2 and a close view virtual image IM1 by making the imaging distances of the two images different.
In the display device 100 provided by the embodiment of the invention, the display panel 110 includes a plurality of pixel electrodes 12, and any two pixel electrodes 12 are electrically insulated. One pixel electrode 12 includes a reflective electrode 121 or a transmissive electrode 122. Thus, the first part of light L1 in the backlight irradiates the display panel 110 and is reflected by the reflective electrode 121 in the display panel 110 to form a close-up virtual image IM1. The second part of the light L2 in the backlight irradiates the display panel 110 and continues to propagate through the transmissive electrode 122 in the display panel 110, forming a virtual perspective image IM2. Therefore, the display panel in the embodiment of the present invention can simultaneously display two images, and form a distant view virtual image IM2 and a close view virtual image IM1 by making the imaging distances of the two images different. Clear projection of two images at different distances in the display device 100 of the head-up display is realized.
Alternatively, referring to fig. 4, the reflective electrode 121 is located on the same insulating layer as the transmissive electrode 122. Illustratively, the reflective electrode 121 and the transmissive electrode 122 are disposed on the first substrate 11, and a vertical distance between a side of the reflective electrode 121 adjacent to the first substrate 11 and the first substrate 11 is equal to a vertical distance between a side of the transmissive electrode 122 adjacent to the first substrate 11 and the first substrate 11. In the embodiment of the present invention, the reflective electrode 121 and the transmissive electrode 122 are located on the same insulating layer, so that in a direction perpendicular to the first substrate 11, the reflective electrode 121 and the transmissive electrode 122 share the same thickness space of the display panel, thereby reducing the thickness of the display panel.
For example, referring to fig. 4, the first substrate 11 may be an insulating layer, and the reflective electrode 121 and the transmissive electrode 122 are disposed on the first substrate 11. In other embodiments, some organic or inorganic layers in the display panel may serve as an insulating layer for carrying the reflective electrode 121 and the transmissive electrode 122, for example, the reflective electrode 121 and the transmissive electrode 122 are located on the same organic layer or the same inorganic layer. The organic layer in the display panel may include, for example, a planarization layer, a pixel defining layer, a support pillar, etc., and the inorganic layer in the display panel may include, for example, a gate insulating layer, an interlayer insulating layer, a passivation layer, etc.
Fig. 5 is a schematic cross-sectional structure diagram of another display panel according to an embodiment of the present invention, and referring to fig. 5, the array substrate further includes a first passivation layer 261. The first passivation layer 261 is positioned between the reflective electrode 121 and the transmissive electrode 122. The reflective electrode 121 and the transmissive electrode 122 are located on different insulating layers.
Alternatively, referring to fig. 3, the reflective electrodes 121 are arranged one by one with the transmissive electrodes 122 along the first direction. In the first direction, one transmissive electrode 122 is spaced between two adjacent reflective electrodes 121, and one reflective electrode 121 is spaced between two adjacent transmissive electrodes 122. The arrangement of the reflective electrode 121 and the transmissive electrode 122 may be: reflective electrode 121, transmissive electrode 122, \8230;, and a reflective electrode 122. Along the second direction, the reflective electrodes 121 and the transmissive electrodes 122 are arranged at intervals one by one. In the second direction, one transmissive electrode 122 is spaced between two adjacent reflective electrodes 121, and one reflective electrode 121 is spaced between two adjacent transmissive electrodes 122. In the embodiment of the present invention, the reflective electrodes 121 and the transmissive electrodes 122 are arranged at intervals one by one along the first direction, so that the reflective electrodes 121 for reflecting light rays are uniformly distributed and the transmissive electrodes 122 for transmitting light rays are uniformly distributed along the first direction, and a picture formed by the reflected light rays is superimposed with a picture formed by the transmissive light rays, so as to realize that one display panel simultaneously displays two superimposed pictures, and a distant view virtual image IM2 and a close view virtual image IM1 are formed by making the imaging distances of the two pictures different. Further, because along first direction and second direction, reflection electrode 121 and transmission electrode 122 homogeneous interval are arranged, the luminance in each region is even in the close-range virtual image IM1 that the reflection light formed and the transmission light formed the distant view virtual image IM2, and the close-range virtual image IM1 that the reflection light formed and the luminance difference of adjacent region in the distant view virtual image IM2 that the transmission light formed are less, the region that the luminance violently changed can not appear in the whole picture that close-range virtual image IM1 and distant view virtual image IM2 formed after the stack fuses, the whole picture that close-range virtual image IM1 and distant view virtual image IM2 formed after the stack fuses is more natural, soft.
Fig. 6 is a schematic top view of another display panel according to an embodiment of the present invention, and referring to fig. 6, the display panel includes a plurality of reflective electrode columns 123 and a plurality of transmissive electrode columns 124. In the second direction, the reflective electrode column 123 includes a plurality of reflective electrodes 121, and the transmissive electrode column 124 includes a plurality of transmissive electrodes 122. In the second direction, the plurality of reflective electrodes 121 constitute one reflective electrode column 123, and the plurality of transmissive electrodes 122 constitute one transmissive electrode column 124. The reflective electrode columns 123 and the transmissive electrode columns 124 are arranged one by one along the first direction. In the embodiment of the present invention, along the first direction, one transmissive electrode column 124 is spaced between two adjacent reflective electrode columns 123, and one reflective electrode column 123 is spaced between two adjacent transmissive electrode columns 124. The arrangement of the reflective electrode columns 123 and the transmissive electrode columns 124 may be: reflection electrode column 123, transmission electrode column 124, \8230;. In the embodiment of the present invention, since the plurality of reflective electrodes 121 form one reflective electrode column 123 along the second direction, the plurality of reflective electrodes 121 are all used for reflecting light along the second direction, so that light passing through the color resistance above the reflective electrodes 121 in the second direction is prevented from being irradiated onto the transmissive electrode 122. Similarly, the plurality of transmissive electrodes 122 form a transmissive electrode column 124 along the second direction, so that the plurality of transmissive electrodes 122 are all used for transmitting light along the second direction, and light passing through the color resistor above the transmissive electrode 122 in the second direction is prevented from being irradiated onto the reflective electrode 121.
Fig. 7 is a schematic top view of another display panel according to an embodiment of the present invention, and referring to fig. 7, the display panel includes a reflective display area 125 and a transmissive display area 126 adjacent to each other. The reflective electrode 121 is located in the reflective display region 125, and the transmissive electrode 122 is located in the transmissive display region 126. In the embodiment of the present invention, the reflective electrodes 121 are disposed in the reflective display area 125 in a centralized manner, and the light irradiated to the reflective display area 125 is reflected by the reflective electrodes 121; the transmissive electrodes 122 are disposed in the transmissive display area 126 in a concentrated manner, and the light irradiated to the transmissive display area 126 is transmitted by the transmissive electrodes 122. The picture formed by the reflected light and the picture formed by the transmitted light are positioned in two areas, and the picture formed by the reflected light and the picture formed by the transmitted light are not overlapped. In the embodiment of the present invention, since the plurality of reflective electrodes 121 are located in the reflective display area 125 along the first direction and the second direction, the plurality of reflective electrodes 121 are all used for reflecting light along the first direction and the second direction, so that light passing through the color resistance above the reflective electrodes 121 in the first direction and the second direction is prevented from being irradiated onto the transmissive electrode 122. Similarly, the plurality of transmissive electrodes 122 are co-located in the transmissive display region 126 along the first direction and the second direction, so that the plurality of transmissive electrodes 122 are all used for transmitting light along the first direction and the second direction, and light passing through the color resistance above the transmissive electrodes 122 in the first direction and the second direction is prevented from being irradiated onto the reflective electrode 121.
Fig. 8 is a schematic cross-sectional structure diagram of another display panel according to an embodiment of the present invention, fig. 9 is a schematic optical path diagram of the display panel according to the embodiment of the present invention, and referring to fig. 8 and fig. 9, the display panel further includes a plurality of color resistors 22, and the color resistors 22 are located on a side of the pixel electrode 12 away from the first substrate 11. The color resistor 22 overlaps at least one pixel electrode 12 in a direction perpendicular to the first substrate 11. In one embodiment, the color resistors 22 overlap the pixel electrodes 12 in a one-to-one correspondence. In another embodiment, a plurality of pixel electrodes 12 overlap the same color resistor 22. The incident angle of the backlight obliquely incident on the display panel is θ, and the vertical distance between the color resistor 22 and the pixel electrode 12 is d. In the first direction, a distance between a side of the reflective electrode 121 adjacent to the transmissive electrode 122 and a side of the transmissive electrode 122 adjacent to the reflective electrode 121 is s, i.e., a distance between adjacent edges of the reflective electrode 121 and the transmissive electrode 122 is s, and s satisfies the following equation:
s＞d×tanθ (1)
in the embodiment of the present invention, the distance between the adjacent edges of the reflective electrode 121 and the transmissive electrode 122 satisfies the formula (1), so that the distance between the reflective electrode 121 and the transmissive electrode 122 is relatively long, and the light passing through one color resistor 22 does not irradiate the reflective electrode 121 overlapped with the adjacent color resistor 22, thereby avoiding the situation that the light reflected by the reflective electrode 121 passes through the adjacent color resistor 22, and avoiding color cross-talk and color cast. Light passing through one color resistor 22 does not impinge on the transmissive electrode 122 overlapping an adjacent color resistor 22, thereby preventing cross color and color shift.
Alternatively, referring to fig. 8 and 9, the color resistor 22 includes a first sub color resistor 2201 and a second sub color resistor 2202, and the first sub color resistor 2201 and the second sub color resistor 2202 are arranged along the first direction. The first sub color resistor 2201 and the second sub color resistor 2202 may be different parts of the same color resistor 22. In a direction perpendicular to the first substrate 11, the second sub-color resistor 2202 overlaps the pixel electrode 12, the first sub-color resistor 2201 does not overlap the pixel electrode 12, and the first sub-color resistor 2201 is staggered with the pixel electrode 12. Along the first direction, the width of the first sub-color resistance 2201 is a, and a satisfies the following formula:
a＝d×tanθ (2)
due to the fact that
In the embodiment of the present invention, the backlight is incident obliquely to the display panel, and the color resistor 22 includes, in addition to the second sub-color resistor 2202 overlapping with the pixel electrode 12, the first sub-color resistor 2201 not overlapping with the pixel electrode 12, that is, in the first direction, the left edge of the color resistor 22 exceeds the left edge of the pixel electrode 12, and the left edge of the color resistor 22 is closer to the incident direction side of the backlight than the left edge of the pixel electrode 12. The width of the first sub-color-resistor 2201 satisfies the formula (2), so that the light passing through the left edge of the color-resistor 22 can just be projected to the left edge of the pixel electrode 12, and all the light passing through the color-resistor 22 can be irradiated to the pixel electrode 12.
Optionally, referring to fig. 8 and 9, the color resistor 22 further includes a third sub-color resistor 2203. In the first direction, the second sub-color resistor 2202 is located between the first sub-color resistor 2201 and the third sub-color resistor 2203. The first sub color resistor 2201, the second sub color resistor 2202 and the third sub color resistor 2203 can be different parts of the same color resistor 22. In the direction perpendicular to the first substrate 11, the third sub-color resistor 2203 is not overlapped with the pixel electrode 12, and the third sub-color resistor 2203 is staggered with the pixel electrode 12. In the first direction, the width of the third sub-color resistor 2203 is equal to the width of the first sub-color resistor 2201. In the first direction, the widths of the first sub-color resistor 2201 and the third sub-color resistor 2203 are both a. In the embodiment of the present invention, on the basis of the above embodiment, the color resistor 22 further includes a third sub color resistor 2203, along the first direction, the right edge of the color resistor 22 exceeds the right edge of the pixel electrode 12, and the right edge of the color resistor 22 is farther from the incident direction side of the backlight than the right edge of the pixel electrode 12. The width of the third sub-color resistor 2203 is equal to that of the first sub-color resistor 2201, and the width of the first sub-color resistor 2201 satisfies the formula (2), so that the light reflected by the right edge of the pixel electrode 12 (specifically, the reflective electrode 121) can just pass through the right edge of the color resistor 22, and all the light reflected by the pixel electrode 12 (specifically, the reflective electrode 121) can pass through the color resistor 22.
Exemplarily, referring to fig. 8 and 9, the color resistor 22 overlapping the transmissive electrode 122 also includes a third sub-color resistor 2203. For example, the second color resistor 222 overlaps the transmissive electrode 122, and the second color resistor 222 may include a first sub color resistor 2201, a second sub color resistor 2202 and a third sub color resistor 2203. In the embodiment of the present invention, the color resistor 22 overlapped with the reflective electrode 121 may include a first sub color resistor 2201, a second sub color resistor 2202 and a third sub color resistor 2203, and the color resistor 22 overlapped with the transmissive electrode 122 may include the first sub color resistor 2201, the second sub color resistor 2202 and the third sub color resistor 2203, so that all the color resistors 22 may include the first sub color resistor 2201, the second sub color resistor 2202 and the third sub color resistor 2203, thereby eliminating the need of providing the black matrix 25 for blocking light between the color resistors 22 and simplifying the manufacturing process. In other embodiments, since the right edge of the transmissive electrode 122 does not reflect light, the color resistor 22 overlapping the transmissive electrode 122 may not include the third sub-color resistor 2203, so as to reduce the size of the color resistor 22 overlapping the transmissive electrode 122, increase the number of color resistors 22 in unit length or unit area, and increase the PPI.
Fig. 10 is a schematic cross-sectional structure diagram of another display panel according to an embodiment of the present invention, fig. 11 is a schematic optical path diagram of another display panel according to an embodiment of the present invention, referring to fig. 10 and fig. 11, the display panel further includes a black matrix 25, the black matrix 25 is provided with a plurality of openings, and the color resistors 22 are located in the openings of the black matrix 25. In the first direction, the width b of the black matrix 25 between the adjacent color resists 22 satisfies the following equation:
b≥d×tanθ (3)
in the embodiment of the present invention, the width of the black matrix 25 between the adjacent color resistors 22 satisfies the formula (3), so that the light reflected by the right edge of the reflective electrode 121 irradiates on the black matrix 25, and the light reflected by the right edge of the reflective electrode 121 does not irradiate on the adjacent color resistor 22, thereby preventing the light reflected by the reflective electrode 121 from passing through the adjacent color resistor 22, and avoiding color cross-talk and color cast.
Alternatively, referring to FIG. 11,0 < θ ≦ 45. It will be appreciated that if θ is too large, the more deeply the light incident on the display panel is inclined, and if it is desired to irradiate light to the entire pixel electrode 12, it is necessary to provide a large color resist 22, i.e., the color resist 22 has a large side length in the first direction and/or the second direction. In the embodiment of the invention, the theta is set to be more than 0 and less than or equal to 45 degrees, so that a large color resistance 22 is not required to be set, and the pixel density (namely PPI) of the display panel is improved.
Fig. 12 is a schematic top view of another display panel according to an embodiment of the present invention, fig. 13 is a schematic cross-sectional view along a direction BB' in fig. 12, and referring to fig. 12 and fig. 13, a direction perpendicular to the first substrate 11 is taken along a first direction, and adjacent reflective electrodes 121 and transmissive electrodes 122 overlap with a same color resist 22. In the embodiment of the present invention, the reflective electrodes 121 and the transmissive electrodes 122 adjacent to each other along the first direction share the same color resistor 22, and the color of the light reflected by the reflective electrodes 121 and transmitted through the color resistor 22 is the same as the color of the light transmitted by the transmissive electrodes 122 sharing the same color resistor 22. Since the reflective electrode 121 and the transmissive electrode 122 adjacent to each other in the first direction share the same color resistor 22, the number of black matrixes 25 between the adjacent color resistors 22 in the second direction is reduced, the shielding of the black matrixes 25 on light is reduced, and the light extraction efficiency is increased. Similarly, in another embodiment, the adjacent reflective electrode 121 and transmissive electrode 122 overlap the same color resist 22 in the second direction perpendicular to the direction of the first substrate 11.
Fig. 14 is a schematic cross-sectional structure view of another display panel according to an embodiment of the invention, and referring to fig. 14, in a direction perpendicular to the first substrate 11, the pixel electrodes 12 and the color resistors 22 are overlapped in a one-to-one correspondence, that is, one pixel electrode 12 and one color resistor 22 are overlapped. The thickness of the color resistor 22 overlapping the reflective electrode 121 is H1, the thickness of the color resistor 22 overlapping the transmissive electrode 122 is H2, and H1 is smaller than H2. It can be understood that, for the reflected light, the backlight firstly passes through the color resistor 22 and then irradiates on the reflective electrode 121, and after being reflected by the reflective electrode 121, the backlight secondly passes through the same color resistor 22 and then exits to the outside of the display panel. For the transmitted light, the backlight passes through the color resistor 22 for the first time and then irradiates on the transmissive electrode 122, and after being transmitted by the transmissive electrode 122, the backlight directly exits to the outside of the display panel. It can be seen that the reflected light passes twice through the color resistor 22, while the transmitted light passes once through the color resistor 22. In the embodiment of the present invention, the thickness of the color resistor 22 overlapping the reflective electrode 121 is smaller than that of the color resistor 22 overlapping the transmissive electrode 122, so as to increase the propagation path of the transmitted light in the color resistor 22, reduce the difference between the propagation path of the reflected light in the color resistor 22 and the propagation path of the transmitted light in the color resistor 22, and equalize the brightness and chromaticity of the reflected light and the transmitted light. In addition, in the embodiment of the present invention, all the color resistors 22 are disposed on the same insulating layer, so that the thickness of the display panel is reduced.
Exemplarily, referring to fig. 14, the display panel further includes a color film planarization layer 27, where the color film planarization layer 27 is located between the color resistors 22 and the liquid crystal layer 31, and is used for covering the plurality of color resistors 22 and forming a flat surface on a side far from the color resistors 22.
Fig. 15 is a schematic cross-sectional structure view of another display panel according to an embodiment of the invention, and referring to fig. 15, in a direction perpendicular to the first substrate 11, the pixel electrodes 12 and the color resistors 22 are overlapped in a one-to-one correspondence, that is, one pixel electrode 12 and one color resistor 22 are overlapped. The display panel further comprises a plurality of additional color resists 15, the additional color resists 15 being located between the transmissive electrode 122 and the first substrate 11. The additional color resistors 15 overlap the transmissive electrodes 122 in a one-to-one correspondence in a direction perpendicular to the first substrate 11, that is, one additional color resistor 15 overlaps one transmissive electrode 122. The additional color resists 15 and 22 overlapping the same transmissive electrode 122 have the same transmissive color. In the embodiment of the present invention, the additional color resistor 15 is disposed between the transmissive electrode 122 and the first substrate 11, and the additional color resistor 15 and the color resistor 22 overlapped with the additional color resistor 15 have the same transmission color, so that the transmission color of the original color resistor 22 is not changed by the additional color resistor 15, and the transmitted light needs to propagate in the color resistor 22 and the additional color resistor 15, thereby increasing the propagation path of the transmitted light in the color filter (including the color resistor 22 and the additional color resistor 15), reducing the difference between the propagation path of the reflected light in the color resistor 22 and the propagation path of the transmitted light in the color filter, and equalizing the brightness and chromaticity of the reflected light and the transmitted light.
Illustratively, referring to fig. 15, the plurality of color resistors 22 includes a first color resistor 221, a second color resistor 222 and a third color resistor 223, and one color resistor 22 includes one first color resistor 221, one second color resistor 222 or the third color resistor 223. Any two of the first color resistor 221, the second color resistor 222 and the third color resistor 223 have different light transmission colors, that is, light passing through any two of the first color resistor 221, the second color resistor 222 and the third color resistor 223 exhibits different colors. The plurality of additional color resists 15 includes a first additional color resist 151, a second additional color resist 152, and a third additional color resist 153, and one additional color resist 15 includes one first additional color resist 151, one second additional color resist 152, or one third additional color resist 153. In a direction perpendicular to the first substrate 11, the first color resistor 221 overlaps the first additional color resistor 151, and the first color resistor 221 and the first additional color resistor 151 have the same light transmittance color. In the direction perpendicular to the first substrate 11, the second color resistor 222 overlaps the second additional color resistor 152, and the second color resistor 222 and the second additional color resistor 152 have the same transmission color. In a direction perpendicular to the first substrate 11, the third color resistor 223 overlaps the third additional color resistor 153, and the third color resistor 223 and the third additional color resistor 153 have the same light-transmitting color.
Alternatively, referring to fig. 15, the display panel further includes a liquid crystal layer 31, a common electrode 26, and a second substrate 21. The liquid crystal layer 31 is located between the pixel electrode 12 and the second substrate 21, and the liquid crystal layer 31 includes a plurality of liquid crystal molecules. The common electrode 26 is located between the first substrate 11 and the second substrate 21, and the common electrode 26 and the reflective electrode 121 generate a first electric field, which affects the deflection of the liquid crystal molecules, and thus the intensity of the reflected light. The common electrode 26 and the transmissive electrode 122 generate a second electric field, which affects the deflection of the liquid crystal molecules and thus the intensity of the transmitted light.
Exemplarily, referring to fig. 15, the display panel further includes an array planarization layer 17 and a sealant 32. The array planarization layer 17 is located between the pixel electrode 12 and the additional color resist 15. The sealant 32 is disposed between the first substrate 11 and the second substrate 21 and surrounds the liquid crystal layer 31.
For example, referring to fig. 15, the common electrode 26 is located between the liquid crystal layer 31 and the second substrate 21, in other embodiments, the common electrode 26 may also be located between the liquid crystal layer 31 and the first substrate 11, which is not limited in this embodiment of the present invention.
Alternatively, the reflective electrode 121 and the transmissive electrode 122 are driven in the same display frame. In the embodiment of the present invention, since any two pixel electrodes 12 are electrically insulated, the reflective electrode 121 and the transmissive electrode 122 are electrically insulated, and the reflective electrode 121 and the transmissive electrode 122 are independently driven, in the same display frame, driving signals are provided for both the reflective electrode 121 and the transmissive electrode 122, time-division driving is not required, driving requirements of the pixel electrodes 12 are reduced, and driving time is shortened. In other embodiments, the reflective electrode 121 and the transmissive electrode 122 can also be driven in time division in two different display frames.
Fig. 16 is a schematic top view of another display panel according to an embodiment of the present invention, and referring to fig. 16, the display panel further includes a plurality of scan lines 41, a plurality of data lines 42, and a plurality of thin film transistors 43, the plurality of scan lines 41 extend along a first direction and are arranged along a second direction, and the plurality of data lines 42 extend along the second direction and are arranged along the first direction. The source of the thin film transistor 43 is electrically connected to one reflective electrode 121 or one transmissive electrode 122. That is, the source of one thin film transistor 43 is electrically connected to one pixel electrode 12. The gate of the thin film transistor 43 electrically connected to the reflective electrode 121 is a first gate, and the gate of the thin film transistor 43 electrically connected to the transmissive electrode 122 is a second gate. Along the first direction, the first gate and the second gate are electrically connected to the same scan line 41, and the reflective electrode 121 and the transmissive electrode 122 in the same row correspond to the same scan line 41. A drain of the thin film transistor 43 electrically connected to the reflective electrode 121 is a first drain, and a drain of the thin film transistor 43 electrically connected to the transmissive electrode 122 is a second drain. Along the second direction, the first drain electrode and the second drain electrode are electrically connected to the same data line 42, and the reflective electrode 121 and the transmissive electrode 122 in the same column correspond to the same data line 42. When displaying an image, the scanning line 41 in a certain row turns on the plurality of thin film transistors 43 electrically connected thereto, and each data line 42 applies a data signal to the pixel electrode 12 electrically connected thereto, specifically, one data line 42 applies a data signal to the reflective electrode 121 electrically connected thereto, and the other data line 42 applies a data signal to the transmissive electrode 122 electrically connected thereto, so that the selection of the plurality of scanning lines 41 matches the selection of the plurality of data lines 42, thereby realizing independent control of a single reflective electrode 121 and a single transmissive electrode 122, and the wiring manner of the existing scanning lines 41 and data lines 42 does not need to be changed, thereby reducing the manufacturing cost of the display panel.
Fig. 17 is a schematic cross-sectional structure view of another display panel according to an embodiment of the present invention, and referring to fig. 17, the display panel further includes a liquid crystal layer 31, a first quarter-wave plate 14, a first polarizer 13, a second quarter-wave plate 24, and a second polarizer 23. The liquid crystal layer 31 is located on the side of the pixel electrode 12 away from the first substrate 11. The first quarter-wave plate 14 is located on a side of the first substrate 11 away from the liquid crystal layer 31, the first polarizer 13 is located on a side of the first quarter-wave plate 14 away from the first substrate 11, and the first quarter-wave plate 14 is located between the first polarizer 13 and the first substrate 11. The second quarter-wave plate 24 is located on the side of the liquid crystal layer 31 away from the first substrate 11, and the second polarizer 23 is located on the side of the second quarter-wave plate 24 away from the liquid crystal layer 31. Exemplarily, the second quarter wave plate 24 may be located between the second substrate 21 and the second polarizer 23.
Illustratively, a first portion of light L1 (forming reflected light) in the backlight passes through the second polarizer 23 and becomes linearly polarized light, the linearly polarized light passes through the second quarter-wave plate 24 and becomes left circularly polarized light, when the reflective electrode 121 is energized, the liquid crystal molecules rotate, the polarization state of the light passing through the liquid crystal layer 31 changes, and becomes left elliptically polarized light, the light is reflected by the reflective electrode 121 and becomes right elliptically polarized light, the light passes through the liquid crystal layer 31 again and becomes left circularly polarized light, the light passes through the second polarizer 23 again and forms polarized light with the same polarization direction as the light initially passing through the second polarizer 23, and thus the reflected light can pass through the second polarizer 23, and the display panel presents a white state. The first part of light L1 (forming reflected light) in the backlight passes through the second polarizer 23 and then becomes linearly polarized light, the linearly polarized light passes through the second quarter-wave plate 24 and then becomes levorotatory circularly polarized light, under the condition that the reflective electrode 121 is not electrified, liquid crystal molecules do not rotate, the polarization state of the light passing through the liquid crystal layer 31 does not change, the light is levorotatory circularly polarized light or dextrorotatory circularly polarized light, the light is reflected by the reflective electrode 121 and then becomes dextrorotatory circularly polarized light or dextrorotatory circularly polarized light, and after passing through the second polarizer 23 again, polarized light perpendicular to the polarization direction of the light which passes through the second polarizer 23 for the first time is formed, so that the reflected light cannot pass through the second polarizer 23, and the display panel presents a black state.
Fig. 18 is a schematic cross-sectional view of another display panel according to an embodiment of the invention, and referring to fig. 18, the common electrode 26 is located between the liquid crystal layer 31 and the first substrate 11. Further, the common electrode 26 may also be positioned between the pixel electrode 12 and the first substrate 11. The display panel further includes a second passivation layer 262, the second passivation layer 262 being positioned between the pixel electrode 12 and the common electrode 26 for electrically insulating the pixel electrode 12 from the common electrode 26.
Fig. 19 is a schematic view of an automobile according to an embodiment of the present invention, and referring to fig. 1 to 19, the automobile includes the display device 100 in the above embodiment. In the embodiment of the present invention, since the automobile includes the display device 100 in the above embodiment, the display device 100 has the beneficial effect that one long-range virtual image IM2 and one short-range virtual image IM1 are formed by making the imaging distances of the two pictures different. Clear projection of images with two different distances in the display device of head-up display is realized.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.

Claims (17)

1. A display device provided in an automobile including a windshield, characterized by comprising a display panel including:
a first substrate;
a plurality of pixel electrodes located on the same side of the first substrate; the pixel electrodes are arrayed along a first direction and a second direction, and the first direction is crossed with the second direction; any two pixel electrodes are electrically insulated;
the plurality of pixel electrodes comprise a reflecting electrode and a transmitting electrode, one pixel electrode comprises the reflecting electrode or the transmitting electrode, the reflecting electrode comprises a light reflecting material and is used for reflecting a first part of light in backlight, and the transmitting electrode comprises a light transmitting material and is used for transmitting a second part of light in backlight;
the display device further comprises a backlight source, a plane reflector and a curved reflector, wherein the backlight source is positioned on one side of the pixel electrode, which is far away from the first substrate, and a non-zero included angle is formed between the backlight source and the display panel; the planar reflector and the curved reflector are positioned on an optical path between the display panel and the windshield;
the reflection electrode and the transmission electrode are positioned on the same insulating layer.
2. The display device according to claim 1, wherein the reflective electrodes and the transmissive electrodes are arranged one by one at intervals along the first direction;
along the second direction, the reflection electrodes and the transmission electrodes are arranged at intervals one by one.
3. The display device according to claim 1, wherein the display panel comprises a plurality of reflective electrode columns and a plurality of transmissive electrode columns, the reflective electrode columns comprise a plurality of the reflective electrodes and the transmissive electrode columns comprise a plurality of the transmissive electrodes along the second direction;
along the first direction, the reflecting electrode rows and the transmitting electrode rows are arranged at intervals one by one.
4. The display device according to claim 1, wherein the display panel comprises a reflective display region and a transmissive display region which are adjacent;
the reflective electrode is located in the reflective display region, and the transmissive electrode is located in the transmissive display region.
5. The display device according to claim 1, wherein the display panel further comprises a plurality of color resistors, the color resistors being located on a side of the pixel electrodes away from the first substrate;
the color resistance is overlapped with at least one pixel electrode in a direction perpendicular to the first substrate;
the incident angle of the oblique incidence of backlight to the display panel is theta, the vertical distance between the color resistor and the pixel electrode is d, and the distance between one side of the reflection electrode close to the transmission electrode and one side of the transmission electrode close to the reflection electrode along the first direction is s, so that the requirements that:
s＞d×tanθ。
6. the display device according to claim 5, wherein the color resistors comprise a first sub color resistor and a second sub color resistor, and the first sub color resistor and the second sub color resistor are arranged along the first direction; the second sub color resistor is overlapped with the pixel electrode, and the first sub color resistor is not overlapped with the pixel electrode in the direction perpendicular to the first substrate;
along the first direction, the width of the first sub-color resistance is a, and the following requirements are met:
a＝d×tanθ。
7. the display device according to claim 6, wherein the color resistors further comprise a third sub-color resistor, and the second sub-color resistor is located between the first sub-color resistor and the third sub-color resistor along the first direction; the third sub color resistance is not overlapped with the pixel electrode in the direction perpendicular to the first substrate;
along the first direction, the width of the third sub-color resistance is equal to the width of the first sub-color resistance.
8. The display device according to claim 6, wherein the display panel further comprises a black matrix, the black matrix defines a plurality of openings, and the color resistors are disposed in the openings;
along the first direction, the width of the black matrix between the adjacent color resistors is b, and the following conditions are met:
b≥d×tanθ。
9. a display device as claimed in claim 5, characterised in that 0 < θ ≦ 45 °.
10. The display device according to claim 5, wherein the reflection electrode and the transmission electrode adjacent to each other overlap the same color resist in the first direction or in the second direction in a direction perpendicular to the first substrate.
11. The display device according to claim 5, wherein the pixel electrodes overlap the color resistors in a one-to-one correspondence in a direction perpendicular to the first substrate;
the thickness of the color resistor overlapping the reflective electrode is smaller than the thickness of the color resistor overlapping the transmissive electrode.
12. The display device according to claim 5, wherein the pixel electrodes overlap the color resistors in a one-to-one correspondence in a direction perpendicular to the first substrate;
the display panel further comprises a plurality of additional color resistors, wherein the additional color resistors are positioned between the transmission electrode and the first substrate; the additional color resistors are overlapped with the transmission electrodes in a one-to-one correspondence mode in a direction perpendicular to the first substrate, and the additional color resistors and the color resistors overlapped with the same transmission electrode have the same light transmission color.
13. The display device according to claim 1, wherein the display panel further comprises a liquid crystal layer, a common electrode, and a second substrate, wherein the liquid crystal layer is located between the pixel electrode and the second substrate, and wherein the common electrode is located between the first substrate and the second substrate.
14. The display device according to claim 1, wherein the reflective electrode and the transmissive electrode are driven in the same display frame.
15. The display device according to claim 14, wherein the display panel further comprises a plurality of scan lines extending in the first direction and arranged in the second direction, a plurality of data lines extending in the second direction and arranged in the first direction, and a plurality of thin film transistors;
the source electrode of the thin film transistor is electrically connected with one reflecting electrode or one transmitting electrode;
the grid electrode of the thin film transistor electrically connected with the reflection electrode is a first grid electrode, and the grid electrode of the thin film transistor electrically connected with the transmission electrode is a second grid electrode; along the first direction, the first grid and the second grid are electrically connected with the same scanning line;
the drain electrode of the thin film transistor electrically connected with the reflection electrode is a first drain electrode, and the drain electrode of the thin film transistor electrically connected with the transmission electrode is a second drain electrode; along the second direction, the first drain electrode and the second drain electrode are electrically connected with the same data line.
16. The display device according to claim 1, wherein the display panel further comprises a liquid crystal layer, a first quarter-wave plate, a first polarizer, a second quarter-wave plate, and a second polarizer;
the liquid crystal layer is positioned on one side of the pixel electrode, which is far away from the first substrate;
the first quarter-wave plate is positioned on one side of the first substrate, which is far away from the liquid crystal layer, and the first polarizer is positioned on one side of the first quarter-wave plate, which is far away from the first substrate;
the second quarter wave plate is located the liquid crystal layer is kept away from first base plate one side, the second polaroid is located the second quarter wave plate is kept away from liquid crystal layer one side.
17. An automobile, characterized by comprising the display device according to any one of claims 1 to 16.
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