CN110412793B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110412793B CN110412793B CN201910603010.7A CN201910603010A CN110412793B CN 110412793 B CN110412793 B CN 110412793B CN 201910603010 A CN201910603010 A CN 201910603010A CN 110412793 B CN110412793 B CN 110412793B
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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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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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
- G02F1/133528—Polarisers
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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
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
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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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136222—Colour filters incorporated in the active matrix substrate
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- Crystallography & Structural Chemistry (AREA)
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- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Geometry (AREA)
Abstract
The invention discloses a display panel, which comprises a color film substrate and an array substrate which are oppositely arranged, wherein the array substrate is provided with a plurality of pixel units, a plurality of scanning lines and a plurality of data lines which are insulated and crossed mutually, a pixel electrode and a thin film transistor are arranged in each pixel unit, the pixel electrode is connected with the corresponding scanning line and the corresponding data line through the thin film transistor, a mixture liquid crystal layer is arranged between the color film substrate and the array substrate, the mixture liquid crystal layer comprises liquid crystal molecules and quantum rods, the initial arrangement directions of the long axes of the liquid crystal molecules and the quantum rods are the same, the quantum rods can convert incident unpolarized light into linearly polarized light with the direction of the long axes of the quantum rods, a polaroid is further arranged on the color film substrate, a reflecting electrode is further arranged on the array substrate, a reflecting area is formed in an area corresponding to the reflecting electrode, and a transmitting area is formed in an area corresponding to the pixel electrode and staggered with the reflecting electrode. The invention also provides a display device comprising the display panel.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
At present, Liquid Crystal Display (LCD) devices are the mainstream products in the market due to their excellent performance and mature technology. Liquid crystal display devices are classified according to the type of light source, and can be classified into transmissive (reflective), reflective (reflective), and transflective (semi-transmissive and semi-reflective).
The liquid crystal display device mainly comprises a color film substrate and an array substrate which are arranged oppositely, and liquid crystal is filled between the color film substrate and the array substrate. Both the existing reflective liquid crystal display device and the transflective liquid crystal display device can be applied outdoors to make full use of ambient light, i.e., to reflect external light, to obtain all (reflective) or part of the light source (transflective) required for displaying an image. Wherein the reflective liquid crystal display device and the transflective liquid crystal display device each have a plurality of pixel regions, each pixel region including a plurality of sub-pixel regions. In the reflective display device, each sub-pixel region is a reflective region; in the transflective display device, each sub-pixel region includes a transmissive region and a reflective region.
However, in the conventional transflective display device, the transmissive area and the reflective area need to be set with different cell thicknesses to make the optical path difference consistent, and additionally, 1/4 wave plates are required to be added to both the upper and lower polarizing plates to change the polarization states of the incident light and the emergent light, which causes difficulty in manufacturing process and increase in cost.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the present invention provides a display panel and a display device, so as to solve the problems of complicated structure, high manufacturing difficulty and high manufacturing cost of the existing semi-transmission and semi-reflection display device.
The purpose of the invention is realized by the following technical scheme:
the invention provides a display panel, which comprises a color film substrate and an array substrate arranged opposite to the color film substrate, wherein one side of the array substrate facing the color film substrate is provided with a plurality of pixel units, a plurality of scanning lines and a plurality of data lines which are mutually insulated and crossed, each pixel unit is internally provided with a pixel electrode and a thin film transistor, the pixel electrode is connected with the corresponding scanning line and the corresponding data line through the thin film transistor, the array substrate is also provided with a first common electrode, a mixture liquid crystal layer is arranged between the color film substrate and the array substrate, the mixture liquid crystal layer comprises liquid crystal molecules and quantum rods, the initial arrangement directions of the long axes of the liquid crystal molecules and the quantum rods are the same, the quantum rods can convert incident unpolarized light into linearly polarized light with the same direction as the long axis of the incident unpolarized light, a polaroid is also arranged on the color film substrate, and a reflecting electrode is also arranged on the array substrate, the display panel forms a reflection region in a region corresponding to the reflection electrode, and forms a transmission region in a region corresponding to the pixel electrode and staggered with the reflection electrode.
Furthermore, the long axes of the liquid crystal molecules and the quantum rods are parallel to the array substrate and the color film substrate and are perpendicular to the light transmission axis of the polaroid for alignment.
Furthermore, the reflective electrode has a plurality of reflective electrode strips, each of which extends along the scan line direction and covers a portion of an entire row of pixel units, or extends along the data line direction and covers a portion of an entire column of pixel units.
Furthermore, the pixel electrode is a comb-shaped electrode with a slit, the first common electrode is a whole-surface electrode, and the reflective electrode and the first common electrode are both located at different layers from the pixel electrode.
Furthermore, the pixel electrode is a block electrode, the first common electrode is an entire surface electrode, the reflective electrode and the first common electrode are both located at different layers from the pixel electrode, and an entire surface second common electrode is further disposed on the color film substrate.
Furthermore, the display panel has a plurality of blank areas, the plurality of blank areas are not provided with pixel electrodes, the plurality of blank areas extend along the scanning line or the data line direction, the reflective electrode has a plurality of reflective electrode strips, and each reflective electrode strip corresponds to the blank area.
Furthermore, the plurality of blank areas extend along the data line direction, the plurality of blank areas and the plurality of columns of pixel units are arranged alternately, each blank area and every three columns of pixel units are arranged alternately, and each column of blank areas and each column of pixel units have the same width.
Furthermore, the pixel electrode is a comb-shaped electrode with a slit, the first common electrode is a full-surface electrode, the reflective electrode and the pixel electrode are located in the same layer, the reflective electrode, the pixel electrode and the first common electrode are located in different layers, and an auxiliary electrode corresponding to the reflective electrode is further arranged on the color film substrate.
Furthermore, the pixel electrode is a block electrode, the first common electrode is a full-surface electrode, the reflective electrode and the pixel electrode are located in the same layer, the reflective electrode, the pixel electrode and the first common electrode are located in different layers, and a full-surface second common electrode is further arranged on the color film substrate.
The invention also provides a display device comprising the display panel.
The invention has the beneficial effects that: the display panel is characterized in that a mixture liquid crystal layer is arranged between the color film substrate and the array substrate, the mixture liquid crystal layer comprises liquid crystal molecules and quantum rods, the initial arrangement directions of long axes of the liquid crystal molecules and the quantum rods are the same, a polarizing film is further arranged on the color film substrate, a reflection electrode is further arranged on the array substrate, a reflection area is formed in an area corresponding to the reflection electrode by the display panel, and a transmission area is formed in an area corresponding to the pixel electrode and staggered with the reflection electrode by the display panel. Through mixing liquid crystal molecules and quantum rods, when the backlight unit provides the backlight to the display panel, the quantum rods can absorb the backlight and excite the linearly polarized light consistent with the long axis direction of the quantum rods, the array substrate is also provided with a reflection electrode, so that the backlight is converted into the linearly polarized light without arranging a lower polarizing plate between the display panel and the backlight unit, the polarization state of incident light and emergent light is changed without arranging 1/4 wave plates, the anti-transmission function of the display panel can be realized, the traditional lower polarizing plate can be omitted, the penetration rate and the backlight utilization rate are improved, the manufacturing difficulty and the cost are reduced, and the display color gamut can be improved by utilizing the light with narrow wavelength and high color purity emitted by the quantum rods.
Drawings
FIG. 1 is a schematic plan view of a display panel according to one or two embodiments of the present invention;
FIG. 2 is a schematic cross-sectional view of the display panel along the line E-E in FIG. 1 in the initial state according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of a display panel in a dark state according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the display panel in FIG. 3 in a dark state;
FIG. 5 is a schematic diagram of light rays of a display panel in a reflective state and a transmissive state according to one embodiment of the present invention;
FIG. 6 is a schematic diagram of the display panel of FIG. 5 in a reflective and transmissive state;
FIG. 7 is a schematic cross-sectional view of the display panel in the initial state along the line E-E in FIG. 1 according to the second embodiment of the present invention;
FIG. 8 is a schematic view of a display panel in an initial state according to a second embodiment of the present invention;
FIG. 9 is a schematic diagram of the display panel of FIG. 8 in an initial state;
FIG. 10 is a schematic diagram of light rays of a display panel in reflective and transmissive states according to a second embodiment of the present invention;
FIG. 11 is a schematic diagram of the display panel of FIG. 10 in a reflective and transmissive state;
FIG. 12 is a schematic plan view of a display panel according to a third or fourth embodiment of the present invention;
FIG. 13 is a schematic cross-sectional view taken along line F-F in FIG. 12 illustrating a display panel in a third embodiment of the present invention in an initial state;
FIG. 14 is a schematic view of a display panel in a reflective state according to a third embodiment of the present invention;
FIG. 15 is a schematic diagram of a display panel in a transmissive state according to a third embodiment of the present invention;
FIG. 16 is a schematic cross-sectional view of the display panel in the initial state along the line F-F in FIG. 12 according to the fourth embodiment of the present invention;
FIG. 17 is a schematic view of a display panel in a reflective state according to a fourth embodiment of the present invention;
fig. 18 is a schematic light ray diagram of the display panel in the transmissive state according to the fourth embodiment of the invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the display panel and the display device according to the present invention with reference to the accompanying drawings and the preferred embodiments is as follows:
[ example one ]
Fig. 1 is a schematic plan structure diagram of a display panel according to one or two embodiments of the present invention, fig. 2 is a schematic cross-sectional structure diagram of the display panel along a line E-E in fig. 1 in an initial state according to the first embodiment of the present invention, fig. 3 is a schematic light ray diagram of the display panel in a dark state according to the first embodiment of the present invention, fig. 4 is a schematic light ray diagram of the display panel in the dark state according to fig. 3, fig. 5 is a schematic light ray diagram of the display panel in a reflective state and a transmissive state according to the first embodiment of the present invention, and fig. 6 is a schematic light ray diagram of the display panel in the reflective state and the transmissive state according to fig. 5.
As shown in fig. 1 to 6, a display panel according to a first embodiment of the present invention includes a color filter substrate 10 and an array substrate 20 disposed opposite to the color filter substrate 10;
as shown in fig. 1 and 2, the array substrate 20 is provided with a plurality of pixel units SP, a plurality of scan lines 1 and a plurality of data lines 2 insulated and crossed with each other on a side facing the color filter substrate 10, each pixel unit SP corresponds to one sub-pixel, each pixel unit SP is provided with a pixel electrode 23 and a thin film transistor 3, the pixel electrode 23 is connected with the corresponding scan line 1 and data line 2 through the thin film transistor 3, the array substrate 20 is further provided with a first common electrode 22, the array substrate 20 is further provided with a reflective electrode 21, the display panel forms a reflective region R in a region corresponding to the reflective electrode 21, and the display panel forms a transmissive region T in a region corresponding to the pixel electrode 23 and staggered with the reflective electrode 21.
In this embodiment, the reflective electrode 21 has a plurality of reflective electrode stripes 211, each reflective electrode stripe 211 extends along the direction of the scan line 1 and covers a portion of an entire row of pixel units SP, the reflective electrode 21 and the pixel electrode 23 are located at different layers, and the pixel electrode 23 has an overlapping portion with the reflective electrode stripe 211 in the reflective region R. Of course, in other embodiments, each reflective electrode stripe 211 may extend along the data line 2 and cover a portion of an entire column of pixel units SP, and the disclosure is not limited thereto. In this embodiment, the reflective electrode stripes 211 are a whole stripe structure covering a part of a whole row of pixel units SP, however, in other embodiments, the reflective electrode stripes 211 may also be segment-shaped, each segment covers a part of one pixel unit SP, and then all the reflective electrode stripes 211 arranged in a whole row are electrically connected. Each thin film transistor 3 includes a gate electrode, an active layer, a source electrode and a drain electrode (not shown), the gate electrode is connected to the scan line 1, the source electrode is connected to the data line 2, and the drain electrode is connected to the pixel electrode.
In this embodiment, the reflective electrode 21 and the first common electrode 22 are both located at different layers from the pixel electrode 23 and isolated from each other, the first common electrode 22 is a whole-surface structure, and the pixel electrode 23 is a comb-shaped electrode having a slit. The first common electrode 22 may be positioned above or below the pixel electrode 23 (the first common electrode 22 is positioned below the pixel electrode 23 as shown in fig. 5) to form a Fringe Field Switching (FFS) mode. Specifically, the reflective electrode 21 is positioned under the first common electrode 22 and insulated and isolated by the first insulating layer 201, and the first common electrode 22 is positioned under the pixel electrode 23 and insulated and isolated by the second insulating layer 202. Of course, the reflective electrode 21 may directly cover the first common electrode 22 and apply the same signal as the first common electrode 22, and the invention is not limited thereto. Alternatively, In other embodiments, the pixel electrode 23 and the first common electrode 22 may be located on the same layer, and the reflective electrode 21 is located under the pixel electrode 23 and the first common electrode 22, but they are insulated from each other, each of the pixel electrode 23 and the first common electrode 22 may include a plurality of electrode stripes, and the electrode stripes of the pixel electrode 23 and the electrode stripes of the first common electrode 22 are alternately arranged to form an In-Plane Switching (IPS) mode.
The color filter substrate 10 is provided with color resistance materials 12 corresponding to the pixel units SP and black matrixes 11 for spacing the color resistance materials 12, the black matrixes 11 are located between adjacent pixel units SP, so that the adjacent pixel units SP are spaced from each other through the black matrixes 11, the color resistance material layer 12 comprises color resistance materials of three colors of red (R), green (G) and blue (B), and sub-pixels of three colors of red (R), green (G) and blue (B) are correspondingly formed, and the color resistance materials 12 and the black matrixes 11 are covered with flat layers 101. The color filter substrate 10 is provided with a polarizing plate 40 on a side (i.e., an outer side) facing away from the liquid crystal layer 23, and the polarizing plate 40 has a light transmission axis P1.
A mixture liquid crystal layer 30 is arranged between the color film substrate 10 and the array substrate 20, the mixture liquid crystal layer 30 includes liquid crystal molecules 31 and quantum rods 32, the long axes of the liquid crystal molecules 31 and the quantum rods 32 are arranged in the same direction, and the long axes of the liquid crystal molecules 31 and the quantum rods 32 are parallel to the array substrate 20 and the color film substrate 10 and are aligned perpendicular to a light transmission axis P1 of the polarizer 40. Referring to fig. 2, in the present embodiment, in the initial state, the liquid crystal molecules 31 and the quantum rods 32 are in the lying posture, that is, the long axes of the liquid crystal molecules 31 and the quantum rods 32 are parallel to the array substrate 20 and the color filter substrate 10, and a first alignment layer (not shown) is disposed on one side of the color filter substrate 10 close to the mixture liquid crystal layer 30, and the first alignment layer has a first alignment direction X1. A second alignment layer (not shown) is disposed on the side of the array substrate 20 close to the mixture liquid crystal layer 30, the second alignment layer has a second alignment direction X2 (fig. 4), the first alignment direction X1 is anti-parallel to the second alignment direction X2 and is perpendicular to the light transmission axis P1 of the polarizer 40, the liquid crystal molecules 31 and the quantum rods 32 are aligned along the first alignment direction X1 and the second alignment direction X2, and the long axes of the liquid crystal molecules 31 and the quantum rods 32 are perpendicular to the light transmission axis P1 of the polarizer 40, so as to realize a normally black mode (normal black). Of course, in other embodiments, the first alignment direction X1 and the second alignment direction X2 are both parallel to the light transmission axis P1 of the polarizer 40, and the liquid crystal molecules 31 and the quantum rods 32 are aligned along the first alignment direction X1 and the second alignment direction X2 such that the long axes of the liquid crystal molecules 31 and the quantum rods 32 are parallel to the light transmission axis P1 of the polarizer 40, to implement a normally white mode (normal light).
The color film substrate 10 and the array substrate 20 may be made of glass, acrylic acid, polycarbonate, and other materials. The first common electrode 22 and the pixel electrode 23 may be made of Indium Tin Oxide (ITO) or Indium Zinc Oxide (IZO), the reflective electrode 21 is made of metal material with good reflectivity such as AL or Ag, and the liquid crystal molecules 31 are positive liquid crystal molecules (liquid crystal molecules with positive dielectric anisotropy) or negative liquid crystal molecules (liquid crystal molecules with negative dielectric anisotropy).
The quantum rods 32 may be formed of semiconductor materials of groups II-VI, III-V, III-VI, or IV-VI of the periodic Table of elements;
when the quantum rod 32 is formed of group II-VI elements, the quantum rod 32 may be formed of one of cadmium selenide (CdSe), cadmium sulfide (CdS), cadmium telluride (CdTe), zinc oxide (ZnO), zinc selenide (ZnSe), zinc sulfide (ZnS), zinc telluride (ZnTe), mercury selenide (HgSe), mercury telluride (HgTe), and cadmium zinc selenide (CdZnSe), or a mixture of at least two thereof.
When the quantum rod 32 is formed of a group III-V element, the quantum rod 32 may be formed of one of indium phosphide (InP), indium nitride (InN), gallium nitride (GaN), indium antimonide (InSb), indium arsenide phosphide (InAsP), indium gallium arsenide (InGaAs), gallium arsenide (GaAs), gallium phosphide (GaP), gallium antimonide (GaSb), aluminum phosphide (AlP), aluminum nitride (AlN), aluminum arsenide (AlAs), aluminum antimonide (AlSb), cadmium selenide telluride (CdSeTe), and cadmium zinc selenide (ZnCdSe), or a mixture of at least two thereof.
When the quantum rod 32 is formed of group VI-IV elements, the quantum rod 32 may be formed of one of lead selenide (PbSe), lead telluride (PbTe), lead sulfide (PbS), and lead tin telluride (PbSnTe), or a mixture of at least two thereof.
Among them, the quantum rod 32 is a fluorescent material that emits light when an excited electron is transferred from a conduction band to a valence band. The quantum rod 32 has a light emitting property, and the quantum rod 32 can emit linearly polarized light independent of an irradiation light source. When light from the light source is supplied to the quantum rod 32, the quantum rod 32 absorbs the light and emits fluorescence in a certain wavelength range.
The quantum rod 32 has a major axis and a minor axis. The length of the long axis of the quantum rod 32 may be in the range of about 5nm to about 100 nm. The aspect ratio of the major axis to the minor axis of the quantum rod 32 may be in the range of about 8 to about 12. The cross section of the quantum rod 32 in the short axis direction may have any one of a circle, an ellipse, and a polygon. It is understood that the length and aspect ratio of the quantum rod 32 may be varied according to actual needs.
The polarization direction of the light excited by the quantum rod 32 is parallel to the long axis, and the linear polarization light with fixed direction can be obtained by utilizing the characteristic.
The wavelength of the fluorescent light emitted by the quantum rod 32 varies depending on the size of the quantum rod 32. Specifically, as the size (or diameter) of the quantum rod 32 is decreased, fluorescence having a shorter wavelength is emitted, and as the size (or diameter) of the quantum rod 32 is increased, fluorescence having a longer wavelength is emitted. Accordingly, the wavelength of the visible light emitted from the quantum rod 32 can be controlled by adjusting the size (or diameter) of the quantum rod 32, and almost all desired colors of light can be provided in the visible light range.
As shown in fig. 3, when the reflective region R and the transmissive region T are in a dark state, no voltage is applied to the reflective electrode 21, a corresponding common voltage is applied to the first common electrode 22, a corresponding gray scale voltage is applied to the pixel electrode 23, the gray scale voltage includes 0-255 gray scale voltages, fig. 3 corresponds to the pixel electrode 23 to which the 0 gray scale voltage is applied, the liquid crystal molecules 31 and the quantum rods 32 corresponding to the reflective region R and the transmissive region T are not deflected and are in a lying posture, and long axes of the liquid crystal molecules 31 and the quantum rods 32 are perpendicular to the light transmission axis P1 of the polarizer 40. Since the first alignment direction X1 and the second alignment direction X2 are antiparallel and are perpendicular to the transmission axis P1 of the polarizer 40, for the transmissive region T, the linearly polarized light (L1 in fig. 4) emitted by the backlight passing through the quantum rod 32 and being excited will be perpendicular to the transmission axis P1 of the polarizer 40 when reaching the polarizer 40 and cannot pass through the polarizer 40, for the reflective region R, the ambient light passes through the quantum rod 32 and is excited to emit linearly polarized light, which is reflected by the reflective electrode 21 and then passes through the quantum rod 32 again and is excited to emit linearly polarized light (L1 in fig. 4), and when reaching the polarizer 40, the display panel will be perpendicular to the transmission axis P1 of the polarizer 40, and the display panel is in a dark state, that is, the display panel is in a normally black mode (normal black mode).
As shown in fig. 5, when the reflective region R and the transmissive region T are in a bright state, no voltage is applied to the reflective electrode 21, a corresponding common voltage is applied to the first common electrode 22, a corresponding gray scale voltage is applied to the pixel electrode 23, the gray scale voltage includes 0 to 255 gray scale voltages, a corresponding voltage of 255 gray scale voltages is applied to the pixel electrode 23 in fig. 5, a large voltage difference (e.g., 3V) is formed between the pixel electrode 23 and the first common electrode 22, a horizontal electric field is formed, the liquid crystal molecules 31 and the quantum rods 32 corresponding to the reflective region R and the transmissive region T are greatly deflected in a horizontal direction, and long axes of the liquid crystal molecules 31 and the quantum rods 32 are parallel to the light transmission axis P1 of the polarizer 40. At this time, for the transmissive region T, the linearly polarized light (as indicated by L2 in fig. 6) emitted by the backlight passing through the quantum rod 32 and reaching the polarizer 40 will be parallel to the transmission axis P1 of the polarizer 40 and can pass through the polarizer 40, for the reflective region R, the linearly polarized light (as indicated by L2 in fig. 6) emitted by the ambient light passing through the quantum rod 32 and reaching the polarizer 40 will be parallel to the transmission axis P1 of the polarizer 40, and the display panel will be in a bright state. When a voltage between 0-255 gray scale voltages is applied to the pixel electrode 23, the deflection angles of the liquid crystal molecules 31 and the quantum rods 32 in the horizontal direction also change, and thus the display panel can realize different brightness display to present different pictures.
According to the invention, liquid crystal molecules and quantum rods are mixed, the array substrate is provided with the reflecting electrodes, and the quantum rods 32 can convert incident unpolarized light into linearly polarized light with the same direction as the long axis direction of the incident unpolarized light, so that a lower polarizing plate does not need to be arranged between the display panel and the backlight unit to convert backlight into linearly polarized light, and 1/4 wave plates do not need to be arranged to change the polarization states of incident light and emergent light, the anti-transmission function of the display panel can be realized, the penetration rate and the backlight utilization rate are improved, the manufacturing difficulty and the cost are reduced, when the ambient light is stronger, the backlight source can be turned off, the power consumption is saved, the display effect is better in a strong light environment, and the quantum rods 32 can be used for emitting narrow-wavelength high-color-purity light to improve the display color gamut.
[ example two ]
Fig. 1 is a schematic plan structure view of a display panel according to one or two embodiments of the present invention, fig. 7 is a schematic cross-sectional structure view of the display panel according to the second embodiment of the present invention taken along the line E-E in fig. 1 in an initial state, fig. 8 is a schematic light ray view of the display panel according to the second embodiment of the present invention in the initial state, fig. 9 is a schematic principle view of the display panel according to fig. 8 in the initial state, fig. 10 is a schematic light ray view of the display panel according to the second embodiment of the present invention in a reflective and transmissive state, and fig. 11 is a schematic principle view of the display panel according to fig. 10 in the reflective and transmissive state. As shown in fig. 1 and 7 to 11, a display panel according to a second embodiment of the present invention is substantially the same as the display panel according to the first embodiment (fig. 1 to 6), except that in this embodiment, the pixel electrode 23 is a block electrode, the first common electrode 22 is an entire surface electrode, the reflective electrode 21 and the first common electrode 22 are both located at different layers from the pixel electrode 23, the color filter substrate 10 is further provided with an entire surface second common electrode 13, the second common electrode 13 covers the color-resist material 12 and the black matrix 11, and the planarization layer 101 covers the second common electrode 13. In the present embodiment, the first common electrode 22 forms a storage capacitor only with the pixel electrode 23, and the second common electrode 13 forms a deflection electric field with the pixel electrode 23.
As shown in fig. 8, when the reflective region R and the transmissive region T are in a dark state, no voltage is applied to the reflective electrode 21, a corresponding common voltage is applied to the first common electrode 22 and the second common electrode 13, a corresponding gray scale voltage is applied to the pixel electrode 23, the gray scale voltage includes 0 to 255 gray scale voltages, fig. 8 corresponds to 0 gray scale voltage applied to the pixel electrode 23, the liquid crystal molecules 31 and the quantum rods 32 corresponding to the reflective region R and the transmissive region T are not deflected and are in a lying posture, and long axes of the liquid crystal molecules 31 and the quantum rods 32 are perpendicular to a light transmission axis P1 of the polarizer 40. Since the first alignment direction X1 and the second alignment direction X2 are antiparallel and are perpendicular to the transmission axis P1 of the polarizer 40, in this case, for the transmissive region T, the linearly polarized light (as shown by L1 in fig. 9) emitted by the backlight passing through the quantum rod 32 and being excited reaches the polarizer 40, is perpendicular to the transmission axis P1 of the polarizer 40 and cannot pass through the polarizer 40, in the reflective region R, the ambient light passes through the quantum rod 32 and is excited to emit the linearly polarized light, and is reflected by the reflective electrode 21 and then passes through the quantum rod 32 again and is excited to emit the linearly polarized light (as shown by L1 in fig. 9), and when reaching the polarizer 40, is perpendicular to the transmission axis P1 of the polarizer 40, so that the display panel is in a dark state, that is in a normally black mode (normal black).
As shown in fig. 10, when the reflective region R and the transmissive region T are in a bright state, no voltage is applied to the reflective electrode 21, a corresponding common voltage is applied to the first common electrode 22 and the second common electrode 13, a corresponding gray scale voltage is applied to the pixel electrode 23, the gray scale voltage includes 0 to 255 gray scale voltages, in fig. 10, a 255 gray scale voltage is applied to the pixel electrode 23, a large voltage difference (for example, 3V) is formed between the pixel electrode 23 and the second common electrode 13, and a vertical electric field is formed, the liquid crystal molecules 31 and the quantum rods 32 corresponding to the reflective region R and the transmissive region T are greatly deflected in a vertical direction, and the liquid crystal molecules 31 and the quantum rods 32 are in a standing posture. At this time, the light rays pass through the quantum rod 32 and do not form linear polarized light, for the transmission region T, the backlight passes through the quantum rod 32 and then directly passes through the polarizer 40, for the reflection region R, the ambient light passes through the quantum rod 32 and then is reflected by the reflection electrode 21 and then directly passes through the polarizer 40, and the display panel is in a bright state. When a voltage between 0-255 gray scale voltages is applied to the pixel electrode 23, the deflection angles of the liquid crystal molecules 31 and the quantum rods 32 in the vertical direction also change, and thus the display panel can realize different brightness display to present different pictures.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.
[ third example ]
Fig. 12 is a schematic plan view of a display panel according to a third or fourth embodiment of the present invention, fig. 13 is a schematic cross-sectional view of the display panel according to a third embodiment of the present invention taken along a line F-F in fig. 12 in an initial state, fig. 14 is a schematic light ray diagram of the display panel according to the third embodiment of the present invention in a reflective state, and fig. 15 is a schematic light ray diagram of the display panel according to the third embodiment of the present invention in a transmissive state. As shown in fig. 12 to 15, a display panel according to a third embodiment of the present invention is substantially the same as the display panel according to the first embodiment (fig. 1 to 6), except that in this embodiment, the display panel has a plurality of columns of blank areas, the pixel electrodes 23 are not disposed in the plurality of columns of blank areas, that is, the pixel electrodes 23 are not disposed in the areas corresponding to the blank areas on the array substrate 20, the plurality of columns of blank areas and the plurality of columns of pixel units SP are alternately arranged, the reflective electrode 21 has a plurality of reflective electrode stripes 211, and each reflective electrode stripe 211 extends along the direction of the data line 2 and covers an entire column of blank areas. Specifically, each row of the blank regions and each three columns of the pixel units SP are alternately arranged, and each row of the blank regions and each column of the pixel units SP have the same width. Of course, in other embodiments, the blank area and the reflective electrode stripes 211 may also extend along the scan line 1 direction, but not limited thereto.
In this embodiment, the pixel electrode 23 is a comb-shaped electrode having a slit, the first common electrode 22 is a full-surface electrode, the reflective electrode 21 and the pixel electrode 23 are located in the same layer, the reflective electrode 21, the pixel electrode 23 and the first common electrode 22 are located in different layers and are insulated and isolated by the second insulating layer 202, the color filter substrate 10 is further provided with an auxiliary electrode 14 corresponding to the reflective electrode 21, and the corresponding reflective region R and the corresponding transmissive region T on the color filter substrate 10 are isolated by the black matrix 11. In this embodiment, the color filter substrate 10 is provided with a color resist material 12 corresponding to the transmission region T, the reflection region R is not provided with the color resist material 12 and is filled with a transparent material, the auxiliary electrode 14 covers the transparent material, and the color filter substrate 10 may also be provided with the color resist material 12 corresponding to the reflection region R, which is not limited to this. The planarization layer 101 covers the color resist 12, the black matrix 11, and the auxiliary electrode 14. In this embodiment, all the reflective electrodes 21 are electrically connected together in the non-display region and applied with the same voltage, and all the auxiliary electrodes 14 are electrically connected together in the non-display region and applied with the same voltage. Of course, in other embodiments, the reflective electrode 21 may further include a plurality of reflective electrode blocks, one reflective electrode block and two thin film transistors 3 are disposed in each pixel unit SP, the reflective electrode block is connected to the scan line 1 and the data line 2 of the adjacent thin film transistor 3 through one of the thin film transistors 3, the pixel electrode 23 is connected to the scan line 1 and the data line 2 of the adjacent thin film transistor 3 through the other thin film transistor 3, and the voltage applied to each reflective electrode block may be individually controlled, so that the number of on or off reflective regions R on the display panel and the size of the reflective area may be controlled.
As shown in fig. 14, when the display panel is in the reflective state, the first common electrode 22, the reflective electrode 21 and the auxiliary electrode 14 apply corresponding voltages, and the pixel electrode 23 does not apply corresponding gray scale voltages, and at this time, the backlight is turned off, thereby saving power consumption. The liquid crystal molecules 31 and the quantum rods 32 corresponding to the transmission region T are not deflected and are in a lying posture, the long axes of the liquid crystal molecules 31 and the quantum rods 32 are perpendicular to the transmission axis P1 of the polarizing plate 40, while a large voltage difference (3V) is formed between the reflective electrode 21 and the auxiliary electrode 14 and a vertical electric field is formed, and the liquid crystal molecules 31 and the quantum rods 32 corresponding to the reflection region R are greatly deflected in the vertical direction and are in a standing posture. For the transmissive region T, since the first alignment direction X1 and the second alignment direction X2 are antiparallel and both are perpendicular to the transmission axis P1 of the polarizer 40, and there is no backlight, the transmissive region T is in a dark state. For the reflective region R, the ambient light passes through the quantum rod 32, is reflected by the reflective electrode 21, and then directly passes through the polarizer 40, and the reflective region R is in a bright state.
As shown in fig. 15, when the display panel is in the transmissive state, a corresponding common voltage is applied to the first common electrode 22, no voltage is applied to the reflective electrode 21 and the auxiliary electrode 14, a corresponding gray scale voltage is applied to the pixel electrode 23, the gray scale voltage includes 0 to 255 gray scale voltages, and in fig. 15, a corresponding gray scale voltage of 255 is applied to the pixel electrode 23, and the backlight is turned on. The liquid crystal molecules 31 and the quantum rods 32 corresponding to the reflection regions R are not deflected and are in a lying posture, the long axes of the liquid crystal molecules 31 and the quantum rods 32 are perpendicular to the transmission axis P1 of the polarizing plate 40, while the pixel electrode 23 and the first common electrode 22 have a large voltage difference (3V) therebetween and form a horizontal electric field, and the liquid crystal molecules 31 and the quantum rods 32 corresponding to the transmission regions T are greatly deflected in the horizontal direction and are parallel to the transmission axis P1 of the polarizing plate 40. For the reflective region R, since the first alignment direction X1 and the second alignment direction X2 are antiparallel and are perpendicular to the transmission axis P1 of the polarizer 40, the ambient light passes through the quantum rod 32 and excites the linearly polarized light, and then the linearly polarized light passes through the quantum rod 32 again after being reflected by the reflective electrode 21 and excited, and reaches the polarizer 40, the ambient light is perpendicular to the transmission axis P1 of the polarizer 40, and at this time, the reflective region R is in a dark state. For the transmission region T, the linearly polarized light that the backlight passes through the quantum rod 32 and excites when reaching the polarizer 40 will be parallel to the transmission axis P1 of the polarizer 40 and may pass through the polarizer 40 with the transmission region T being a bright state. When a voltage between 0-255 gray scale voltages is applied to the pixel electrode 23, the deflection angles of the liquid crystal molecules 31 and the quantum rods 32 in the horizontal direction also change, and thus the display panel can realize different brightness display to present different pictures.
In contrast to the first embodiment, the display panel in this embodiment can be switched between transmissive and reflective states, and when no display is required, the display panel can be switched to the reflective state to serve as a mirror.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.
[ example four ]
Fig. 12 is a schematic plan view of a display panel according to a third or fourth embodiment of the present invention, fig. 16 is a schematic cross-sectional view of the display panel according to the fourth embodiment of the present invention taken along the line F-F in fig. 12 in an initial state, fig. 17 is a schematic light ray diagram of the display panel according to the fourth embodiment of the present invention in a reflective state, and fig. 18 is a schematic light ray diagram of the display panel according to the fourth embodiment of the present invention in a transmissive state. As shown in fig. 12 and 16 to 18, a display panel according to a fourth embodiment of the present invention is substantially the same as the display panel according to the third embodiment (fig. 12 to 15), except that in the present embodiment, the pixel electrode 23 is a block electrode, the first common electrode 22 is an entire surface electrode, the pixel electrode 23 is a block electrode, the reflective electrode 21 and the pixel electrode 23 are located in the same layer, the reflective electrode 21, the pixel electrode 23 and the first common electrode 22 are located in different layers, the second common electrode 13 is further provided on the color filter substrate 10, the second common electrode 13 covers the color-resist material 12 and the black matrix 11, and the planarization layer 101 covers the second common electrode 13. In the present embodiment, the first common electrode 22 forms a storage capacitor only with the pixel electrode 23, and the second common electrode 13 forms a deflection electric field with the pixel electrode 23.
As shown in fig. 17, when the display panel is in the reflective state, the first common electrode 22, the second common electrode 13 and the reflective electrode 21 are applied with corresponding voltages, and the pixel electrode 23 is not applied with corresponding gray scale voltages, and the backlight is turned off, thereby saving power consumption. The liquid crystal molecules 31 and the quantum rods 32 corresponding to the transmission regions T are not deflected and are in a lying posture, the long axes of the liquid crystal molecules 31 and the quantum rods 32 are perpendicular to the transmission axis P1 of the polarizing plate 40, while a large voltage difference (3V) is formed between the reflective electrode 21 and the second common electrode 13 and a vertical electric field is formed, and the liquid crystal molecules 31 and the quantum rods 32 corresponding to the reflection regions R are greatly deflected in the vertical direction and are in a standing posture. For the transmissive region T, since the first alignment direction X1 and the second alignment direction X2 are antiparallel and both are perpendicular to the transmission axis P1 of the polarizer 40, and there is no backlight, the transmissive region T is in a dark state. For the reflective region R, the ambient light passes through the quantum rod 32, is reflected by the reflective electrode 21, and then directly passes through the polarizer 40, and the reflective region R is in a bright state.
As shown in fig. 18, when the display panel is in the transmissive state, the first common electrode 22 and the second common electrode 13 are applied with the corresponding common voltage, no voltage is applied to the reflective electrode 21, the pixel electrode 23 is applied with the corresponding gray scale voltage, the gray scale voltage includes 0 to 255 gray scale voltages, and in fig. 18, the pixel electrode 23 is applied with the 255 gray scale voltage, and the backlight is turned on. The liquid crystal molecules 31 and the quantum rods 32 corresponding to the reflection regions R are not deflected and are in a lying posture, the long axes of the liquid crystal molecules 31 and the quantum rods 32 are perpendicular to the light transmission axis P1 of the polarizing plate 40, while a large voltage difference (3V) is formed between the pixel electrode 23 and the second common electrode 13 and a vertical electric field is formed, and the liquid crystal molecules 31 and the quantum rods 32 corresponding to the transmission regions T are deflected largely in the vertical direction. For the reflective region R, since the first alignment direction X1 and the second alignment direction X2 are antiparallel and are perpendicular to the transmission axis P1 of the polarizer 40, the ambient light passes through the quantum rod 32 and excites the linearly polarized light, and then the linearly polarized light passes through the quantum rod 32 again after being reflected by the reflective electrode 21 and excited, and reaches the polarizer 40, the ambient light is perpendicular to the transmission axis P1 of the polarizer 40, and at this time, the reflective region R is in a dark state. For the transmissive region T, the backlight may pass through the polarizer 40 directly after passing through the quantum rod 32, and the transmissive region T is in a bright state. When a voltage between 0-255 gray scale voltages is applied to the pixel electrode 23, the deflection angles of the liquid crystal molecules 31 and the quantum rods 32 in the vertical direction also change, and thus the display panel can realize different brightness display to present different pictures.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the present embodiment, and are not described herein again.
The invention also provides a display device comprising the display panel.
In this document, the terms upper, lower, left, right, front, rear and the like are used for defining the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A display panel comprises a color film substrate (10) and an array substrate (20) arranged opposite to the color film substrate (10), wherein a plurality of pixel units (SP), a plurality of scanning lines (1) and a plurality of data lines (2) which are mutually insulated and crossed are arranged on one side of the array substrate (20) facing the color film substrate (10), a pixel electrode (23) and a thin film transistor (3) are arranged in each pixel unit (SP), the pixel electrode (23) is connected with the corresponding scanning lines (1) and the corresponding data lines (2) through the thin film transistor (3), the display panel is characterized in that a first common electrode (22) is further arranged on the array substrate (20), a mixture liquid crystal layer (30) is arranged between the color film substrate (10) and the array substrate (20), the mixture liquid crystal layer (30) comprises liquid crystal molecules (31) and quantum rods (32), and the initial arrangement directions of the long axes of the liquid crystal molecules (31) and the quantum rods (32) are the same, the quantum rod (32) converts incident unpolarized light into linearly polarized light in the same direction as the long axis of the incident unpolarized light, the color film substrate (10) is further provided with a polarizing film (40), the array substrate (20) is further provided with a reflective electrode (21), the display panel forms a reflective region (R) in a region corresponding to the reflective electrode (21), the display panel forms a transmissive region (T) in a region corresponding to the pixel electrode (23) and staggered from the reflective electrode (21), and the long axes of the liquid crystal molecules (31) and the quantum rod (32) are parallel to the array substrate (20) and the color film substrate (10) and are aligned perpendicular to or parallel to a transmission axis (P1) of the polarizing film (40).
2. The display panel according to claim 1, wherein the reflective electrode (21) has a plurality of reflective electrode stripes (211), each reflective electrode stripe (211) extending along the scan line (1) direction and covering a portion of an entire row of pixel units (SP) or extending along the data line (2) direction and covering a portion of an entire column of pixel units (SP).
3. The display panel according to claim 2, wherein the pixel electrode (23) is a comb-shaped electrode having slits, the first common electrode (22) is a full-face electrode, and the reflective electrode (21) and the first common electrode (22) are both located at different layers from the pixel electrode (23).
4. The display panel according to claim 2, wherein the pixel electrode (23) is a block electrode, the first common electrode (22) is a full-area electrode, the reflective electrode (21) and the first common electrode (22) are both located at different layers from the pixel electrode (23), and a full-area second common electrode (13) is further disposed on the color filter substrate (10).
5. The display panel of claim 1, wherein the display panel has a plurality of blank regions, the plurality of blank regions are not disposed with the pixel electrodes (23), the plurality of blank regions extend along the scan lines (1) or the data lines (2), the reflective electrode (21) has a plurality of reflective electrode stripes (211), and each reflective electrode stripe (211) corresponds to the blank region.
6. The display panel according to claim 5, wherein the plurality of blank areas extend along the data line (2), the plurality of blank areas and the plurality of columns of pixel units (SP) are alternately arranged, each blank area and every three columns of pixel units (SP) are alternately arranged, and each blank area and each column of pixel units (SP) have the same width.
7. The display panel according to claim 5, wherein the pixel electrode (23) is a comb-shaped electrode having a slit, the first common electrode (22) is a full-face electrode, the reflective electrode (21) and the pixel electrode (23) are located on a same layer, the reflective electrode (21), the pixel electrode (23) and the first common electrode (22) are located on different layers, and the color filter substrate (10) is further provided with an auxiliary electrode (14) corresponding to the reflective electrode (21).
8. The display panel according to claim 5, wherein the pixel electrode (23) is a block electrode, the first common electrode (22) is a full-surface electrode, the reflective electrode (21) and the pixel electrode (23) are located in the same layer, the reflective electrode (21), the pixel electrode (23) and the first common electrode (22) are located in different layers, and a full-surface second common electrode (13) is further disposed on the color filter substrate (10).
9. A display device characterized by comprising the display panel according to any one of claims 1 to 8.
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| CN111273479B (en) * | 2020-03-27 | 2023-04-11 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN111290160B (en) * | 2020-03-31 | 2023-05-30 | Tcl华星光电技术有限公司 | Display structure and display device |
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