WO2023279440A1 - 显示面板和显示装置 - Google Patents

显示面板和显示装置 Download PDF

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Publication number
WO2023279440A1
WO2023279440A1 PCT/CN2021/107680 CN2021107680W WO2023279440A1 WO 2023279440 A1 WO2023279440 A1 WO 2023279440A1 CN 2021107680 W CN2021107680 W CN 2021107680W WO 2023279440 A1 WO2023279440 A1 WO 2023279440A1
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Prior art keywords
pixel
electrode
sub
subregion
display
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PCT/CN2021/107680
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English (en)
French (fr)
Inventor
曹武
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Tcl华星光电技术有限公司
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Priority to US17/599,575 priority Critical patent/US20240027849A1/en
Publication of WO2023279440A1 publication Critical patent/WO2023279440A1/zh

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Classifications

    • 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
    • G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
    • 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
    • G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
    • 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
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • 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
    • G02F2201/52—RGB geometrical arrangements

Definitions

  • the present application relates to the field of display technology, in particular to a display panel and a display device.
  • liquid crystal display Liquid Crystal Display, LCD
  • LCD liquid crystal display
  • IPS in-plane switching
  • MVA multi-domain vertical alignment
  • the multi-domain vertical alignment liquid crystal display divides a sub-pixel into multiple domains (domain), and when the power is applied, the liquid crystal molecules are tilted in different directions, so that the observation effects in different directions tend to be consistent, so as to widen the viewing angle.
  • the multi-domain vertical alignment liquid crystal display has a wide viewing angle effect, the gamma (gamma) curve will deviate when viewed from the side with a large viewing angle, resulting in color shift and affecting the viewing effect.
  • the present application provides a display panel and a display device, so as to alleviate the technical problem of large viewing angle deviation in liquid crystal displays.
  • An embodiment of the present application provides a display panel, which includes red sub-pixels, green sub-pixels and blue sub-pixels, wherein:
  • Each of the red sub-pixel, the green sub-pixel and the blue sub-pixel includes a plurality of display domains, and the number of display domains of the blue sub-pixel is greater than the number of display domains of the red sub-pixel , and is greater than the number of display domains of the green sub-pixel.
  • each of the red sub-pixel and the green sub-pixel includes four display domains
  • the blue sub-pixel includes eight display domains
  • the blue sub-pixel It includes a first pixel subregion and a second pixel subregion arranged at intervals, and each of the first pixel subregion and the second pixel subregion includes four display domains.
  • each of the red sub-pixel, the green sub-pixel and the blue sub-pixel further includes thin film transistors, and the number of thin film transistors of the blue sub-pixel is larger than that of the red sub-pixel.
  • the number of thin film transistors of the pixel and the green sub-pixel, and the gates of the thin film transistors of the red sub-pixel, the green sub-pixel and the blue sub-pixel are connected to the same gate scanning line.
  • the first pixel subregion and the second pixel subregion are located on opposite sides of the gate scanning line.
  • the brightness of the first pixel subregion is greater than the brightness of the second pixel subregion, and the first pixel subregion and the red sub-pixel and the green sub-pixel are located on the same side as the gate scan line.
  • the first pixel subregion and the second pixel subregion are located on the same side of the gate scanning line.
  • an area ratio of the first pixel subregion and the second pixel subregion is less than 2:3.
  • the first pixel subregion and the second pixel subregion are respectively provided with a first pixel electrode and a second pixel electrode, and part of the electrode lines of the second pixel electrode extend to The first pixel is subdivided and half surrounds the first pixel electrode.
  • the second pixel electrode includes a first trunk electrode and a first branch electrode electrically connected to the first trunk electrode, and a part of the first branch electrode extends to the first branch electrode.
  • a pixel partition half surrounds the first pixel electrode.
  • the second pixel electrode includes a first trunk electrode, a first frame electrode surrounding the first trunk electrode, and a first frame electrode electrically connected to the first trunk electrode and the first frame electrode.
  • the included angle between the first branch electrode and the first trunk electrode is in a range of 35 degrees to 45 degrees.
  • the first pixel electrode includes a second trunk electrode, a second branch electrode electrically connected to the second trunk electrode, and the second branch electrode and the second trunk electrode
  • the included angle of the electrodes ranges from 35 degrees to 45 degrees.
  • An embodiment of the present application further provides a display device, which includes the display panel of one of the foregoing embodiments, and a backlight module disposed opposite to the display panel.
  • the number of display domains of the blue sub-pixel is greater than the number of display domains of the red sub-pixel, and is greater than the number of display domains of the green sub-pixel, by adjusting the blue sub-pixel Carry out differentiated design, while the red sub-pixel and green sub-pixel maintain the existing design.
  • it can reduce the proportion of light emitted by the blue sub-pixel in the display screen at a large viewing angle, which solves the problem of existing LCD There is a problem with the large viewing angle on the monitor.
  • FIG. 1 is a schematic top view structural diagram of a display panel provided by an embodiment of the present application.
  • FIG. 2 is a schematic top view structural diagram of a sub-pixel provided by an embodiment of the present application.
  • FIG. 3 is a schematic cross-sectional structure diagram of a thin film transistor provided in an embodiment of the present application.
  • FIG. 4 is a schematic diagram of another top view structure of a sub-pixel provided by an embodiment of the present application.
  • FIG. 5 is another schematic top view structural diagram of the display panel provided by the embodiment of the present application.
  • FIG. 6 is a schematic diagram of another top view structure of the sub-pixel provided by the embodiment of the present application.
  • FIG. 7 is a schematic diagram of another top view structure of the sub-pixel provided by the embodiment of the present application.
  • FIG. 8 is a schematic cross-sectional structure diagram of a display device provided by an embodiment of the present application.
  • the inventor found in the research that due to the nature of the liquid crystal display mode, the transmittance and color coordinates obtained by the vertical normal front view and the lateral large viewing angle observation will all be different. There are differences. In general viewing angle specifications, in addition to the contrast viewing angle, there is also a color shift viewing angle. The color shift viewing angle is different according to the color standard or card control benchmark. The pros and cons of performance.
  • the gray scales of RGB are: 179/140/102.
  • RGB RGB respectively represent red, green, and blue pixels
  • their gamma (Gamma) value is 2.2
  • the RGB brightness ratio is a specific value at this time; however, due to a certain degree of light leakage or partial brightness after off-axis, the actual When the Gamma value decreases, the brightness ratio of RGB changes greatly at this time, resulting in color cast.
  • the ratio of the brightness increase of RGB is different, so that the ratio of brightness of RGB changes, in which the ratio of R decreases significantly, the ratio of B increases significantly, and the ratio of G is relatively maintained. Therefore, there is an obvious blue shift in the off-axis relative to the front-view color coordinates, which leads to the intensification of the large-view role deviation.
  • the inventor considers that the off-axis Gamma becomes smaller, the picture is brighter, and the off-axis will eventually lead to an increase in the B ratio, resulting in a color shift in the blue shift of the color coordinates, so the differential design is given priority to blue pixels to improve the color shift.
  • FIG. 1 is a schematic diagram of a top view structure of a display panel provided by an embodiment of this application.
  • FIG. 2 is a schematic diagram of a top view structure of a sub-pixel provided by an embodiment of this application. Schematic diagram of the cross-sectional structure of the thin film transistor provided in the embodiment.
  • the display panel 100 includes a red sub-pixel 1, a green sub-pixel 2 and a blue sub-pixel 3 arranged in sequence, and the red sub-pixel 1, the green sub-pixel 2 and the blue sub-pixel 3 together form a In the pixel unit P, the red sub-pixel 1, the green sub-pixel 2 and the blue sub-pixel 3 respectively provide the three primary colors of red, green and blue for the pixel unit P, so that the pixel unit P can display different colors, and the display panel 100 includes a plurality of pixel units P, since each of the pixel units P can display different colors, the display panel 100 can realize color display.
  • the display panel 100 further includes a plurality of gate scanning lines GL arranged in parallel along the first direction X and a plurality of data lines DL arranged in parallel along the second direction Y, the gate scanning lines GL and The intersections of the data lines DL define a plurality of display pixel areas PA.
  • the first direction X is a horizontal direction
  • the second direction Y is a vertical direction
  • the angle between the first direction X and the second direction Y is 90 degrees.
  • the included angle between the first direction X and the second direction Y in the application may also be other included angles, such as 45 degrees, 60 degrees and so on.
  • the red sub-pixel 1 and the green sub-pixel 2 are respectively located in two adjacent individual display pixel areas PA, and the blue sub-pixel 3 is located in two adjacent display pixel areas PA, that is, the Both the red sub-pixel 1 and the green sub-pixel 2 are located in one display pixel area PA, and the blue sub-pixel 3 is located in two display pixel areas PA, and the blue sub-pixel 3 is covered by the gate
  • the scanning line GL is divided into two parts, and each part is located in a display pixel area PA.
  • the red sub-pixel 1, the green sub-pixel 2 and the blue sub-pixel 3 each include a plurality of display domains, and the number of display domains of the blue sub-pixel 3 is greater than the number of display domains.
  • the number of display domains of the red sub-pixel 1 is greater than the number of display domains of the green sub-pixel 2 .
  • the red sub-pixel 1 and the green sub-pixel 2 both include four display domains
  • the blue sub-pixel 3 includes eight display domains
  • the blue sub-pixel 3 includes first The pixel sub-region 31 and the second pixel sub-region 32, the first pixel sub-region 31 and the second pixel sub-region 32 each include four display domains.
  • the blue sub-pixel 3 is divided into the first pixel subregion 31 and the second pixel subregion 32 by the gate scanning line GL, and the first pixel subregion 32 is A pixel subregion 31 and the second pixel subregion 32 are located on opposite sides of the gate scanning line GL, the area ratio of the first pixel subregion 31 and the second pixel subregion 32 is less than 2:3, and the The first pixel subregion 31 is on the same side as the red subpixel 1 and the green subpixel 2, that is, the first pixel subregion 31, the red subpixel 1 and the green subpixel 2 are located at the gate On the same side of the pole scanning line GL, the second pixel partition 32 is located on the other side of the same gate scanning line GL.
  • first pixel subregion 31 is a main pixel (main pixel) area
  • second pixel subregion 32 is a sub pixel (sub pixel) area
  • the brightness of the first pixel subregion 31 is greater than that of the second pixel subregion 32 brightness.
  • the first pixel subregion 31 is provided with a first pixel electrode 11
  • the second pixel subregion 32 is provided with a second pixel electrode 12
  • the second pixel electrode 12 includes a first trunk electrode 121 and a first branch electrode 122 electrically connected to the first trunk electrode 121, wherein the first trunk electrode 121 includes first transverse trunk electrodes and A first vertical trunk electrode, the first transverse trunk electrode is parallel to the first direction X, and the first vertical trunk electrode is parallel to the second direction Y.
  • the first horizontal trunk electrode and the first vertical trunk electrode divide the second pixel electrode 12 into four display domains.
  • Each display domain area includes a plurality of first branch electrodes 122, and in the same display domain area, the first branch electrodes 122 are electrically connected to the first main electrode 121, and are directed toward the side far away from the first main electrode 121. direction, and the plurality of first branch electrodes 122 are parallel to each other.
  • the first pixel electrode 11 includes a second main electrode 111, a second branch electrode 112 electrically connected to the second main electrode 111, and the second main electrode 111 includes a second transverse main electrode and a second main electrode arranged vertically to each other.
  • Two vertical trunk electrodes, the second transverse trunk electrode is parallel to the first direction X
  • the second vertical trunk electrode is parallel to the second direction Y.
  • the second horizontal trunk electrode and the second vertical trunk electrode divide the second pixel electrode 12 into four display domains.
  • Each display domain area includes a plurality of second branch electrodes 112, and in the same display domain area, the second branch electrodes 112 are electrically connected to the second main electrode 111, and move toward the side far away from the second main electrode 111. direction, and the plurality of second branch electrodes 112 are parallel to each other.
  • the first pixel subregion 31 includes four display domains
  • the second pixel subregion 32 also includes four display domains
  • the blue sub-pixel 3 includes eight display domains.
  • the red sub-pixel 1 and the green sub-pixel 2 respectively include a third pixel electrode 13 and a fourth pixel electrode 14, and the third pixel electrode 13 includes a third stem electrode connected to the third stem electrode.
  • the third branch electrode electrically connected to the electrode, the third trunk electrode divides the third pixel electrode 13 into four display domains; the fourth pixel electrode 14 includes a fourth trunk electrode, and the fourth trunk electrode
  • the fourth branch electrode electrically connected to the electrode, the fourth main electrode divides the fourth pixel electrode 14 into four display domains, then the red sub-pixel 1 and the green sub-pixel 2 each include four display domains. Domain area.
  • the red sub-pixel 1, the green sub-pixel 2 and the blue sub-pixel 3 each further include a thin film transistor, and the thin film transistor is electrically connected to the corresponding pixel electrode, and is used to provide the corresponding pixel electrode with drive electrodes.
  • the number of thin film transistors of the blue sub-pixel 3 is greater than the number of thin film transistors of the red sub-pixel 1 and the green sub-pixel 2 .
  • the number of TFTs in the red sub-pixel 1 and the green sub-pixel 2 is 1, and the number of TFTs in the blue sub-pixel 3 is three.
  • the thin film transistors of the blue sub-pixel 3 include a first driving thin film transistor 21, a second driving thin film transistor 22, and a voltage dividing thin film transistor 23.
  • the first pixel electrode 11 is connected to the first driving thin film transistor through a first via hole 33.
  • the thin film transistor 21 is electrically connected, and the first driving thin film transistor 21 is used for providing a driving voltage to the first pixel electrode 11 .
  • the second pixel electrode 12 is electrically connected to the second driving thin film transistor 22 through the second via hole 34, and the second driving thin film transistor 22 is used to provide a driving voltage to the second pixel electrode 12, and
  • the voltage dividing thin film transistor 23 is connected in series with the second driving thin film transistor 22 for pulling down the driving voltage provided by the second driving thin film transistor 22 to the second pixel electrode 12 .
  • the first driving thin film transistor 21, the second driving thin film transistor 22 and the voltage dividing thin film transistor 23 all include a gate, a source and a drain, as shown in FIG. 2 , the first driving thin film transistor 21 Including the source 211 , the drain 212 and the gate 213 , the gate of each thin film transistor is connected to the same gate scanning line GL or integrally arranged.
  • the source 211 of the first driving thin film transistor 21 and the source 221 of the second driving thin film transistor 22 are integrally arranged, and are electrically connected to the same data line DL, and the first driving thin film transistor
  • the drain 212 of 21 is electrically connected to the first pixel electrode 11
  • the drain 222 of the second driving thin film transistor 22 is electrically connected to the second pixel electrode 12
  • the source 231 of the voltage dividing thin film transistor 23 It is electrically connected to the drain 222 of the second driving thin film transistor 22
  • the drain 232 of the voltage dividing thin film transistor 23 is electrically connected to a shared discharge bar 35 (Share bar).
  • the shared discharge bar 35 is disposed on the same layer as the data line DL, the source and the drain.
  • the driving voltage provided by the second driving thin film transistor 22 to the second pixel electrode 12 is lower than the driving voltage provided by the first driving thin film transistor 21 to the first pixel electrode 11, so that the first pixel
  • the brightness of the sub-region 31 is greater than the brightness of the second pixel sub-region 32 , so the brightness of the blue sub-pixel 3 is mainly contributed by the first pixel sub-region 31 .
  • the second pixel sub-region 32 may not be lit, and the brightness of the blue sub-pixel 3 is mainly contributed by the first pixel sub-region 31, so that the entire display panel 100
  • the proportion of blue light emitted by the blue sub-pixel 3 in the display screen will be reduced, which improves the existing liquid crystal screen.
  • the off-axis large viewing angle Gamma becomes smaller, the picture is brighter, and the off-axis will eventually lead to an increase in the proportion of blue light, resulting in a blue shift in color coordinates The problem of color cast occurs.
  • the blue sub-pixel 3 adopts eight-domain display and is divided into a first pixel subregion 31 and a second pixel subregion 32.
  • the The blue sub-pixel 3 includes three thin film transistors, so various wirings need to be added in the blue sub-pixel 3, such as the shared discharge rod 35, which is arranged in the first pixel sub-region 31
  • the shared discharge bar 35 is set corresponding to the first vertical trunk electrode and the second vertical trunk electrode, so the shared discharge bar 35 is used for While discharging the voltage-dividing thin film transistor 23, it also has a light-shielding effect, so that when the display panel 100 is observed at a large viewing angle, the shared discharge rod 35 can block part of the light to prevent light leakage at a large viewing angle, so that the blue As the amount of light emitted by the color sub-pixels 3 decreases, the proportion of blue light in the entire display
  • the red sub-pixel 1 and the green sub-pixel 2 adopt four-domain display, correspondingly, only one thin film transistor is needed, compared with the blue sub-pixel 3 adopting eight-domain display, there is no need to set too many wirings, Therefore, the aperture ratio of the display panel 100 can be improved.
  • the red sub-pixel 1 includes a third driving thin film transistor 24, the green sub-pixel 2 includes a fourth driving thin film transistor 25, and the third driving thin film transistor 24 and the fourth driving thin film transistor 25 are also Including a gate, a source and a drain, the gate is also electrically connected to the corresponding gate scanning line GL, and the red sub-pixel 1, the green sub-pixel 2 and all the sub-pixels in the same pixel unit P The gates of the thin film transistors of the blue sub-pixel 3 are connected to the same gate scanning line GL.
  • Both the source 241 of the third driving thin film transistor 24 and the source 251 of the fourth driving thin film transistor 25 are electrically connected to the corresponding data line DL, and the drain 242 of the third driving thin film transistor 24 passes through
  • the third via hole is connected to the third pixel electrode 13
  • the drain 252 of the fourth driving thin film transistor 25 is connected to the fourth pixel electrode 14 through the fourth via hole.
  • the gates of the thin film transistors of the red sub-pixel 1 , the green sub-pixel 2 and the blue sub-pixel 3 are on the same horizontal line. Being on the same horizontal line means that the gates of the thin film transistors are surrounded by the same gate scanning line GL.
  • the film layer structure of the thin film transistor in each sub-pixel will be described in detail below by taking the first driving thin film transistor 21 as an example:
  • the first driving thin film transistor 21 is arranged on the substrate 10, optionally, the substrate 10 can be a rigid substrate or a flexible substrate; when the substrate 10 is a rigid substrate, it can include Rigid substrates such as glass substrates; when the substrate 10 is a flexible substrate, it may include flexible substrates such as polyimide (PI) films and ultra-thin glass films.
  • PI polyimide
  • the first driving thin film transistor 21 includes an active layer 20, a gate insulating layer 101, a gate layer, an interlayer insulating layer 102, a source-drain layer, Passivation layer 103 and so on.
  • a buffer layer (not shown) may also be provided between the substrate 10 and the active layer 20, and the buffer layer may prevent unwanted impurities or pollutants (such as moisture, oxygen, etc. ) diffuse from the substrate 10 into devices that may be damaged by these impurities or contaminants, while also providing a planar top surface.
  • the active layer 20 is disposed on the buffer layer, and the active layer 20 includes a channel region 201 and a source doped region 202 and a drain doped region 203 located on two sides of the channel region 201 .
  • the gate insulating layer 101 covers the active layer 20 and the buffer layer, the gate layer is disposed on the gate insulating layer 101, the gate layer includes a gate 213, the The gate 213 is disposed corresponding to the channel region 201 of the active layer 20 .
  • the gate layer also includes other signal lines such as the gate scanning line GL provided on the same layer as the gate 213 .
  • the interlayer insulating layer 102 covers the gate layer and the gate insulating layer 101, the source-drain layer is disposed on the interlayer insulating layer 102, and the source-drain layer includes a source 211 and a drain 212 , the source 211 is electrically connected to the source doped region 202 , and the drain 212 is electrically connected to the drain doped region 203 .
  • the source-drain layer also includes signal traces such as data lines DL, for example, the shared discharge bar 35 can be arranged on the same layer as the data lines DL.
  • the passivation layer 103 covers the source-drain layer and the interlayer insulating layer 102, and the passivation layer 103 is provided with a via hole, and the first pixel electrode 11 is connected to the first pixel electrode 11 through the via hole.
  • a drain 212 of a driving thin film transistor 21 is electrically connected.
  • the "same layer setting" in this application means that in the preparation process, the film layer formed by the same material is patterned to obtain at least two different features, and the at least two different features are the same layer settings.
  • the data line DL and the shared discharge rod 35 in this embodiment are obtained by patterning the same conductive film layer, then the data line DL and the shared discharge rod 35 are arranged in the same layer.
  • the embodiment of the present application only uses the thin film transistor structure shown in FIG. 3 as an example to illustrate the structure of the thin film transistor of each sub-pixel, but the present application is not limited thereto, and the thin film transistor of each sub-pixel in the present application can also use other types of thin film transistors. , such as bottom gate type, etch stop type, etc.
  • the slit angles of the red sub-pixel 1 , the green sub-pixel 2 and the blue sub-pixel 3 of the present application can be set arbitrarily, but in order to further improve the transmittance of the display panel 100
  • the slit angles of the red sub-pixel 1, green sub-pixel 2, and blue sub-pixel 3 can be designed differently, and the slit angles are the branch electrodes of the pixel electrodes Angle with the main electrode.
  • the angle between the branch electrodes and the main electrode can be set to 45 degrees; The included angle between the branch electrodes and the trunk electrodes is 35 degrees.
  • the present application mainly aims to improve the problem of color shift caused by the blue shift of the color coordinate caused by the increase in the proportion of off-axis large viewing angle blue light, so the slit angle of the blue sub-pixel 3 can be designed in a differentiated manner.
  • the slit angle of the second pixel electrode 12 is set between 35 degrees and 45 degrees, that is, the angle between the first branch electrode 122 and the first trunk electrode 121
  • the included angle is set between 35 degrees and 45 degrees.
  • the included angle between the first branch electrode 122 and the first trunk electrode 121 is set to 35 degrees, so as to improve the effect of color shift.
  • the slit angles of the first pixel electrode 11 and the second pixel electrode 12 are both set between 35 degrees and 45 degrees, that is, the second branch electrode
  • the included angle between 112 and the second main electrode 111 is set between 35 degrees and 45 degrees.
  • the included angle between the second branch electrode 112 and the second main electrode 111 is set to 35 degrees to improve The effect of color cast is better.
  • the included angle between the first branch electrode 122 and the first trunk electrode 121 and the included angle between the second branch electrode 112 and the second trunk electrode 111 are both set to 35 degrees, Improved color cast to a greater extent.
  • the slits of the third pixel electrode 13 and the fourth pixel electrode 14 can be Angle is set to 45 degrees.
  • FIG. 4 is a schematic diagram of another top view structure of the sub-pixel provided by the embodiment of the present application.
  • the first pixel subregion 31 and the second pixel subregion 32 are respectively provided with a first pixel electrode 11 and a second pixel electrode 12, and part of the electrode lines of the second pixel electrode 12 Extend to the first pixel subregion 31 and half surround the first pixel electrode 11 .
  • part of the first branch electrode 122 of the second pixel electrode 12 extends to the first pixel subregion 31 and half surrounds the first pixel electrode 11 .
  • the extension electrode part 123 extending from the first branch electrode 122 into the first pixel subregion 31 is parallel to the second direction Y, and the extension electrode part 123 is located at the edge of the first pixel subregion 31 region and close to the data line DL, while the extension electrode portion 123 is located on two opposite sides of the first pixel electrode 11 , forming a semi-surrounding of the first pixel electrode 11 .
  • the extended electrode part 123 can function to shield the data line DL, avoiding the generation of parasitic capacitance between the data line DL and the first pixel electrode 11, and reducing crosstalk.
  • FIG. 5 is another schematic top view structure diagram of the display panel provided in the embodiment of the present application
  • FIG. 6 is another sub-pixel provided in the embodiment of the present application.
  • Schematic diagram of a top view structure Different from the above embodiments, the first pixel sub-pixel 31 and the second pixel sub-region 32 of the blue sub-pixel 3 are located on the same side of the gate, that is, the blue sub-pixel 3 and the red sub-pixel
  • the pixel 1 and the green sub-pixel 2 are located on the same side of the gate scanning line GL, and the first pixel subregion 31 and the second pixel subregion 32 are located in the same display pixel area PA.
  • the second pixel subregion 32 is located on the side of the first pixel subregion 31 away from the gate scanning line GL, and the second pixel electrode 12 in the second pixel subregion 32 is provided with a connection electrode 124,
  • the connection electrode 124 passes through the edge of the first pixel subregion 31 and is spaced apart from the first pixel electrode 11 for connecting the second pixel electrode 12 to the drain of the second driving thin film transistor 22 Pole 222.
  • the second pixel electrode 12 includes a first trunk electrode 121, a first frame electrode 125 surrounding the first trunk electrode 121, and a first frame electrode 125 connecting the first trunk electrode 121 and the first trunk electrode 121.
  • the first branch electrode 122 of the frame electrode 125 wherein a part of the first frame electrode 125 extends to the first pixel subregion 31 and half surrounds the first pixel electrode 11 .
  • the first pixel electrode 11 includes a second trunk electrode 111, a second frame electrode 113 surrounding the second trunk electrode 111, and a second branch electrically connecting the second trunk electrode 111 and the second frame electrode 113 electrode 112 .
  • the first frame electrode 125 extending to the first pixel subregion 31 is arranged in parallel with part of the second frame electrode 113 , and one of the first frame electrodes 125 extending to the first pixel subregion 31 is connected to
  • the drain 222 of the second driving thin film transistor 22 is connected, and the first frame electrode 125 not connected to the drain 222 of the second driving thin film transistor 22 can play the role of shielding the data line DL, preventing the data line from A parasitic capacitance is generated between the DL and the first pixel electrode 11 to reduce crosstalk.
  • FIG. 8 is a schematic cross-sectional structure diagram of a display device provided by an embodiment of the present application.
  • the display device 1000 includes a display panel 100 of one of the foregoing embodiments, and the display panel 100 and a backlight module 200 disposed opposite to the display panel 100 and a cover plate 300 covering the display panel 100 .
  • the present application provides a display panel and a display device.
  • the display panel includes red sub-pixels, green sub-pixels and blue sub-pixels arranged in sequence, and the number of display domains of the blue sub-pixels is greater than that of the display domains of the red sub-pixels. number, and the number of display domains is greater than that of the green sub-pixels.

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Abstract

一种显示面板（100）和显示装置（1000）；显示面板（100）的蓝色子像素（3）的显示畴区的数量大于红色子像素（1）以及绿色子像素（2）的显示畴区的数量，通过对蓝色子像素（3）进行差异化设计，而红色子像素（1）和绿色子像素（3）保持现有设计，在保证穿透率的前提下，能够减小大视角时显示画面中蓝色子像素（3）出光的占比，以缓解现有液晶显示器存在大视角色偏的问题。

Description

显示面板和显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板和显示装置。
 背景技术
随着液晶显示（Liquid Crystal Display，LCD）技术的发展，高穿透率、大视角成为液晶显示装置发展的趋势，如何改善穿透率和视角成为未来发展的重要方向之一。目前市面上出现了各种广视角的液晶显示器，如共平面切换式(in-plane switching，IPS)液晶显示器、多域垂直配向式(multi-domain vertical alignment，MVA)液晶显示器等。多域垂直配向式液晶显示器是把一个子像素划分成多个畴（domain）区，加电时使液晶分子朝不同方向倾倒，从而使不同的方向观察的效果趋于一致，以拓宽视角。虽然多域垂直配向式液晶显示器具有广视角的效果，但在大视角侧视时伽马(gamma)曲线会发生偏离，产生色偏，影响观看效果。
因此，现有液晶显示器存在大视角色偏的技术问题需要解决。
 技术问题
本申请提供一种显示面板和显示装置，以缓解液晶显示器存在大视角色偏的技术问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请实施例提供一种显示面板，其包括红色子像素、绿色子像素和蓝色子像素，其中：
所述红色子像素、所述绿色子像素和所述蓝色子像素均包括多个显示畴区，所述蓝色子像素的显示畴区的数量大于所述红色子像素的显示畴区的数量，并且大于所述绿色子像素的显示畴区的数量。
在本申请实施例提供的显示面板中，所述红色子像素和所述绿色子像素均包括四个显示畴区，所述蓝色子像素包括八个显示畴区，且所述蓝色子像素包括间隔设置的第一像素分区和第二像素分区，所述第一像素分区和所述第二像素分区均包括四个显示畴区。
在本申请实施例提供的显示面板中，所述红色子像素、所述绿色子像素和所述蓝色子像素均还包括薄膜晶体管，所述蓝色子像素的薄膜晶体管数量大于所述红色子像素以及所述绿色子像素的薄膜晶体管数量，且所述红色子像素、所述绿色子像素和所述蓝色子像素的薄膜晶体管的栅极连接同一栅极扫描线。
在本申请实施例提供的显示面板中，所述第一像素分区和所述第二像素分区位于所述栅极扫描线的相对两侧。
在本申请实施例提供的显示面板中，所述第一像素分区的亮度大于所述第二像素分区的亮度，且所述第一像素分区与所述红色子像素以及所述绿色子像素位于所述栅极扫描线的同侧。
在本申请实施例提供的显示面板中，所述第一像素分区和所述第二像素分区位于所述栅极扫描线的同侧。
在本申请实施例提供的显示面板中，所述第一像素分区和所述第二像素分区的面积比小于2：3。
在本申请实施例提供的显示面板中，所述第一像素分区和所述第二像素分区分别设置有第一像素电极和第二像素电极，且所述第二像素电极的部分电极线延伸至所述第一像素分区，并半包围所述第一像素电极。
在本申请实施例提供的显示面板中，所述第二像素电极包括第一主干电极、与所述第一主干电极电连接的第一分支电极，部分所述第一分支电极延伸至所述第一像素分区，并半包围所述第一像素电极。
在本申请实施例提供的显示面板中，所述第二像素电极包括第一主干电极、围绕所述第一主干电极的第一边框电极以及电连接所述第一主干电极和所述第一边框电极的第一分支电极，其中部分所述第一边框电极延伸至所述第一像素分区，并半包围所述第一像素电极。
在本申请实施例提供的显示面板中，所述第一分支电极和所述第一主干电极的夹角范围为35度至45度。
在本申请实施例提供的显示面板中，所述第一像素电极包括第二主干电极、与所述第二主干电极电连接的第二分支电极，所述第二分支电极和所述第二主干电极的夹角范围为35度至45度。
本申请实施例还提供一种显示装置，其包括前述实施例其中之一的显示面板、与所述显示面板相对设置的背光模组。
 有益效果
本申请提供的显示面板和显示装置中，蓝色子像素的显示畴区的数量大于红色子像素的显示畴区的数量，并且大于绿色子像素的显示畴区的数量，通过对蓝色子像素进行差异化设计，而红色子像素和绿色子像素保持现有设计，在保证穿透率的前提下，能够减小大视角时显示画面中蓝色子像素出光的占比，解决了现有液晶显示器存在大视角色偏的问题。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的显示面板的一种俯视结构示意图。
图2为本申请实施例提供的子像素的一种俯视结构示意图。
图3为本申请实施例提供的薄膜晶体管的剖面结构示意图。
图4为本申请实施例提供的子像素的另一种俯视结构示意图。
图5为本申请实施例提供的所述显示面板的另一种俯视结构示意图。
图6为本申请实施例提供的子像素的又一种俯视结构示意图。
图7为本申请实施例提供的子像素的再一种俯视结构示意图。
图8为本申请实施例提供的显示装置的剖面结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。在附图中，为了清晰理解和便于描述，夸大了一些层和区域的厚度。即附图中示出的每个组件的尺寸和厚度是任意示出的，但是本申请不限于此。
针对现有液晶显示器存在大视角色偏的问题，发明人在研究中发现受限于液晶显示模式的本质，垂直法线正视与侧向大视角观察，所得到的穿透率和色坐标等都会有差异，一般视角规格，除了对比度视角外，还有色偏视角，其中色偏视角根据颜色标准或者卡控标杆不同，例如以正视和左右30°侧视所得色坐标的差异量大小，表征色偏表现的优劣。
在评价色偏时需要给特定的灰阶画面，比如以肤色画面评价色偏时，RGB（RGB分别表示红色、绿色、蓝色像素）灰阶分别为: 179/140/102。以正常4四个显示畴区的液晶显示器为例，其正视的伽马（Gamma）值为2.2，此时RGB亮度配比为特定值；但离轴后由于一定程度的漏光或者偏亮，实际Gamma数值减小，此时RGB的亮度配比发生较大变化，造成色偏。
具体地，随着Gamma数值减小，RGB的亮度增大，但RGB的亮度增大的比例不同，使得RGB的亮度配比发生变化，其中R比例下降明显，B比例上升明显，G比例相对保持不变；因而离轴相对于正视色坐标而言，出现了明显的蓝移，导致了大视角色偏的加剧。
发明人考虑到离轴Gamma变小，画面偏亮，而且离轴最终导致B比例上升，致使色坐标蓝移发生色偏，故优先针对蓝色像素进行差异化设计，以改善色偏。
请结合参照图1至图3，图1为本申请实施例提供的显示面板的一种俯视结构示意图，图2为本申请实施例提供的子像素的一种俯视结构示意图，图3为本申请实施例提供的薄膜晶体管的剖面结构示意图。所述显示面板100包括依次排布的红色子像素1、绿色子像素2和蓝色子像素3，所述红色子像素1、所述绿色子像素2和所述蓝色子像素3共同构成一个像素单元P，所述红色子像素1、所述绿色子像素2和所述蓝色子像素3分别为所述像素单元P提供红色、绿色、蓝色三基色，使得所述像素单元P能够显示不同的颜色，而所述显示面板100包括多个像素单元P，由于每个所述像素单元P能够显示不同的颜色，使得所述显示面板100实现彩色显示。
具体地，所述显示面板100还包括多条沿第一方向X平行排布的栅极扫描线GL以及多条沿第二方向Y平行排布的数据线DL，所述栅极扫描线GL和所述数据线DL交叉限定出多个显示像素区PA。其中所述第一方向X为水平方向，所述第二方向Y为竖直方向，所述第一方向X和所述第二方向Y的夹角为90度，当然本申请不限于此，本申请的所述第一方向X和所述第二方向Y的夹角还可为其他夹角，例如45度、60度等。
所述红色子像素1和所述绿色子像素2分别位于相邻的两个单独的显示像素区PA内，所述蓝色子像素3位于相邻的两个显示像素区PA内，也即所述红色子像素1和所述绿色子像素2均位于一个显示像素区PA内，而所述蓝色子像素3位于两个显示像素区PA内，所述蓝色子像素3被所述栅极扫描线GL分为两部分，每部分位于一个显示像素区PA内。
下面将具体阐述所述红色子像素1、所述绿色子像素2和所述蓝色子像素3的像素结构：
如图2所示，所述红色子像素1、所述绿色子像素2和所述蓝色子像素3均包括多个显示畴区，所述蓝色子像素3的显示畴区的数量大于所述红色子像素1的显示畴区的数量，并且大于所述绿色子像素2的显示畴区的数量。例如所述红色子像素1和所述绿色子像素2均包括四个显示畴区，所述蓝色子像素3包括八个显示畴区，且所述蓝色子像素3包括间隔设置的第一像素分区31和第二像素分区32，所述第一像素分区31和所述第二像素分区32均包括四个显示畴区。
具体地，以所述蓝色子像素3为例，所述蓝色子像素3被所述栅极扫描线GL分为所述第一像素分区31和所述第二像素分区32，所述第一像素分区31和所述第二像素分区32位于所述栅极扫描线GL的相对两侧，所述第一像素分区31和所述第二像素分区32的面积比小于2：3，且所述第一像素分区31与所述红色子像素1以及所述绿色子像素2同侧，也即所述第一像素分区31、所述红色子像素1以及所述绿色子像素2位于所述栅极扫描线GL的同一侧，所述第二像素分区32位于同一所述栅极扫描线GL的另一侧。其中所述第一像素分区31为主像素（main pixel）区，所述第二像素分区32为次像素（sub pixel）区，所述第一像素分区31的亮度大于所述第二像素分区32的亮度。
所述第一像素分区31设置有第一像素电极11，所述第二像素分区32设置有第二像素电极12。所述第二像素电极12包括第一主干电极121、与所述第一主干电极121电连接的第一分支电极122，其中所述第一主干电极121包括互相垂直设置的第一横向主干电极和第一竖向主干电极，所述第一横向主干电极平行于所述第一方向X，所述第一竖向主干电极平行于所述第二方向Y。所述第一横向主干电极和所述第一竖向主干电极把第二像素电极12划分为四个显示畴区。每个显示畴区均包括多个第一分支电极122，在同一显示畴区内所述第一分支电极122与所述第一主干电极121电连接，并朝远离所述第一主干电极121的方向延伸，且多个所述第一分支电极122之间互相平行。
所述第一像素电极11包括第二主干电极111、与所述第二主干电极111电连接的第二分支电极112，所述第二主干电极111包括互相垂直设置的第二横向主干电极和第二竖向主干电极，所述第二横向主干电极平行于所述第一方向X，所述第二竖向主干电极平行于所述第二方向Y。所述第二横向主干电极和所述第二竖向主干电极把第二像素电极12划分为四个显示畴区。每个显示畴区均包括多个第二分支电极112，在同一显示畴区内所述第二分支电极112与所述第二主干电极111电连接，并朝远离所述第二主干电极111的方向延伸，且多个所述第二分支电极112之间互相平行。
所述第一像素分区31包括四个显示畴区，所述第二像素分区32也包括四个显示畴区，故所述蓝色子像素3包括八个显示畴区。相对应地，所述红色子像素1和所述绿色子像素2分别包括第三像素电极13和第四像素电极14，所述第三像素电极13包括第三主干电极、与所述第三主干电极电连接的第三分支电极，所述第三主干电极把所述第三像素电极13划分为四个显示畴区；所述第四像素电极14包括第四主干电极、与所述第四主干电极电连接的第四分支电极，所述第四主干电极把所述第四像素电极14划分为四个显示畴区，则所述红色子像素1和所述绿色子像素2均包括四个显示畴区。
进一步地，所述红色子像素1、所述绿色子像素2和所述蓝色子像素3均还包括薄膜晶体管，所述薄膜晶体管与对应的像素电极电连接，用于给对应的像素电极提供驱动电极。其中所述蓝色子像素3的薄膜晶体管数量大于所述红色子像素1以及所述绿色子像素2的薄膜晶体管数量。
继续参照图2，所述红色子像素1和所述绿色子像素2的薄膜晶体管的数量均为1，所述蓝色子像素3的薄膜晶体管数量为3。所述蓝色子像素3的薄膜晶体管包括第一驱动薄膜晶体管21、第二驱动薄膜晶体管22以及分压薄膜晶体管23，所述第一像素电极11通过第一过孔33与所述第一驱动薄膜晶体管21电连接，所述第一驱动薄膜晶体管21用于给所述第一像素电极11提供驱动电压。所述第二像素电极12通过所述第二过孔34与所述第二驱动薄膜晶体管22电连接，所述第二驱动薄膜晶体管22用于给所述第二像素电极12提供驱动电压，且所述分压薄膜晶体管23与所述第二驱动薄膜晶体管22串联连接，用于拉低所述第二驱动薄膜晶体管22提供给所述第二像素电极12的驱动电压。
所述第一驱动薄膜晶体管21、所述第二驱动薄膜晶体管22以及所述分压薄膜晶体管23均包括栅极、源极以及漏极，如图2示出的所述第一驱动薄膜晶体管21包括源极211、漏极212以及栅极213，各薄膜晶体管的所述栅极均与同一所述栅极扫描线GL连接或一体式设置。
具体地，所述第一驱动薄膜晶体管21的源极211和所述第二驱动薄膜晶体管22的源极221一体式设置，且与同一所述数据线DL电连接，所述第一驱动薄膜晶体管21的漏极212与所述第一像素电极11电连接，所述第二驱动薄膜晶体管22的漏极222与所述第二像素电极12电连接，所述分压薄膜晶体管23的源极231与所述第二驱动薄膜晶体管22的漏极222电连接，所述分压薄膜晶体管23的漏极232与共享放电棒35（Share bar）电连接。所述共享放电棒35与所述数据线DL、所述源极以及所述漏极同层设置。
由于所述第一驱动薄膜晶体管21和所述第二驱动薄膜晶体管22由同一所述数据线DL写入数据信号，而所述第二驱动薄膜晶体管22又与所述分压薄膜晶体管23串联，使得所述第二驱动薄膜晶体管22提供给所述第二像素电极12的驱动电压小于所述第一驱动薄膜晶体管21提供给所述第一像素电极11的驱动电压，如此使得所述第一像素分区31的亮度大于所述第二像素分区32的亮度，故所述蓝色子像素3的亮度主要由所述第一像素分区31贡献。尤其地，在中低灰阶显示时，所述第二像素分区32可以不点亮，所述蓝色子像素3的亮度主要由所述第一像素分区31贡献，如此所述显示面板100整个显示画面中蓝色子像素3发出的蓝光的占比将减小，改善了现有液晶屏离轴大视角Gamma变小，画面偏亮，而且离轴最终导致蓝光比例上升，致使色坐标蓝移发生色偏的问题。
同时，所述蓝色子像素3采用八畴显示，分为第一像素分区31和第二像素分区32，为实现所述第一像素分区31和所述第二像素分区32分压调控，所述蓝色子像素3包括三个薄膜晶体管，如此在所述蓝色子像素3内需增加各种布线，如所述共享放电棒35，所述共享放电棒35设置在所述第一像素分区31和所述第二像素分区32的正中间，也即所述共享放电棒35对应所述第一竖向主干电极和所述第二竖向主干电极设置，故所述共享放电棒35在用于给所述分压薄膜晶体管23放电的同时，还具有遮光的作用，如此在大视角观察所述显示面板100时，所述共享放电棒35能够遮挡部分光线，防止大视角漏光，使得所述蓝色子像素3的出光量减少，在所述显示面板100整个显示画面中蓝光的占比将减小，进一步改善了离轴大视角蓝光比例上升导致的色坐标蓝移发生色偏的问题。
另外，所述红色子像素1和所述绿色子像素2采用四畴显示，对应只需设置一个薄膜晶体管即可，相较于采用八畴显示的蓝色子像素3无需设置过多的布线，从而能够提高所述显示面板100的开口率。
具体地，所述红色子像素1包括第三驱动薄膜晶体管24，所述绿色子像素2包括第四驱动薄膜晶体管25，所述第三驱动薄膜晶体管24和所述第四驱动薄膜晶体管25均也包括栅极、源极以及漏极，所述栅极也与对应的所述栅极扫描线GL电连接，且同一像素单元P内的所述红色子像素1、所述绿色子像素2以及所述蓝色子像素3的薄膜晶体管的栅极连接同一所述栅极扫描线GL。
所述第三驱动薄膜晶体管24的源极241和所述第四驱动薄膜晶体管25的源极251均与对应的所述数据线DL电连接，所述第三驱动薄膜晶体管24的漏极242通过第三过孔与所述第三像素电极13连接，所述第四驱动薄膜晶体管25的漏极252通过第四过孔与所述第四像素电极14连接。其中，所述红色子像素1、所述绿色子像素2和所述蓝色子像素3的薄膜晶体管的栅极在同一水平线。在同一水平线是指各薄膜晶体管的栅极均围绕在同一所述栅极扫描线GL附近。
下面将以所述第一驱动薄膜晶体管21为例具体阐述各子像素内薄膜晶体管的膜层结构：
如图3所示，所述第一驱动薄膜晶体管21设置在衬底10上，可选地，所述衬底10可以为刚性基板或柔性基板；所述衬底10为刚性基板时，可包括玻璃基板等硬性基板；所述衬底10为柔性基板时，可包括聚酰亚胺（Polyimide，PI）薄膜、超薄玻璃薄膜等柔性基板。
可选地，所述第一驱动薄膜晶体管21包括依次层叠设置在所述衬底10上的有源层20、栅极绝缘层101、栅极层、层间绝缘层102、源漏极层、钝化层103等。可选地，所述衬底10与所述有源层20之间还可设置有缓冲层（图未示），所述缓冲层可以防止不期望的杂质或污染物（例如湿气、氧气等）从所述衬底10扩散至可能因这些杂质或污染物而受损的器件中，同时还可以提供平坦的顶表面。
所述有源层20设置在所述缓冲层上，所述有源层20包括沟道区201以及位于所述沟道区201两侧的源极掺杂区202和漏极掺杂区203。
所述栅极绝缘层101覆盖在所述有源层20以及所述缓冲层上，所述栅极层设置在所述栅极绝缘层101上，所述栅极层包括栅极213，所述栅极213与所述有源层20的沟道区201对应设置。当然所述栅极层还包括与所述栅极213同层设置的栅极扫描线GL等其他信号走线。
所述层间绝缘层102覆盖在所述栅极层以及所述栅极绝缘层101上，所述源漏极层设置在所述层间绝缘层102上，所述源漏极层包括源极211和漏极212，所述源极211与所述源极掺杂区202电连接，所述漏极212与所述漏极掺杂区203电连接。当然所述源漏极层还包括数据线DL等信号走线，例如所述共享放电棒35可与所述数据线DL同层设置。
所述钝化层103覆盖在所述源漏极层以及所述层间绝缘层102上，且所述钝化层103设置有过孔，所述第一像素电极11通过过孔与所述第一驱动薄膜晶体管21的漏极212电连接。
需要说明的是，本申请中的“同层设置”是指在制备工艺中，将相同材料形成的膜层进行图案化处理得到至少两个不同的特征，则所述至少两个不同的特征同层设置。比如，本实施例的所述数据线DL与所述共享放电棒35由同一导电膜层进行图案化处理后得到，则所述数据线DL与所述共享放电棒35同层设置。
另外，本申请实施例仅以图3示意的薄膜晶体管结构为例说明各子像素的薄膜晶体管构造，但本申请不限于此，本申请中各子像素的薄膜晶体管也可以采用其他类型的薄膜晶体管，如底栅型、刻蚀阻挡型等。
同时，本申请的所述红色子像素1、所述绿色子像素2以及所述蓝色子像素3的狭缝（slit）角可以任意设置，但为了进一步提高所述显示面板100的穿透率和改善所述显示面板100的色偏，可对所述红色子像素1、绿色子像素2以及蓝色子像素3的狭缝角进行差异化设计，所述狭缝角即像素电极的分支电极与主干电极之间的夹角。例如，为了提高所述显示面板100的穿透率，可使所述分支电极与所述主干电极之间的夹角为45度，而为了进一步改善所述显示面板100的色偏时，可使所述分支电极与所述主干电极之间的夹角为35度。
具体地，本申请主要为改善离轴大视角蓝光比例上升导致的色坐标蓝移发生色偏的问题，故可对所述蓝色子像素3的狭缝角进行差异化设计。在所述蓝色子像素3内，把所述第二像素电极12的狭缝角设置在35度至45度之间，也即所述第一分支电极122与所述第一主干电极121的夹角设置在35度至45度之间，优选地，把所述第一分支电极122与所述第一主干电极121的夹角设置为35度，改善色偏的效果更好。
或者，在所述蓝色子像素3内，所述第一像素电极11和所述第二像素电极12的狭缝角均设置在35度至45度之间，也即所述第二分支电极112与所述第二主干电极111的夹角设置在35度至45度之间，优选地，把所述第二分支电极112与所述第二主干电极111的夹角设置为35度，改善色偏的效果更好。
当然地，当把所述第一分支电极122与所述第一主干电极121的夹角以及所述第二分支电极112与所述第二主干电极111的夹角均设置为35度时，可更大程度的改善色偏。而且同时为了兼顾所述显示面板100的穿透率，在所述红色子像素1和所述绿色子像素2内，可把所述第三像素电极13和所述第四像素电极14的狭缝角设置为45度。
在一种实施例中，请参照图4，图4为本申请实施例提供的子像素的另一种俯视结构示意图。与上述实施例不同的是，所述第一像素分区31和所述第二像素分区32分别设置有第一像素电极11和第二像素电极12，且所述第二像素电极12的部分电极线延伸至所述第一像素分区31，并半包围所述第一像素电极11。具体地，所述第二像素电极12的部分所述第一分支电极122延伸至所述第一像素分区31，并半包围所述第一像素电极11。
具体地，所述第一分支电极122延伸至所述第一像素分区31内的延伸电极部123平行于所述第二方向Y，所述延伸电极部123位于所述第一像素分区31的边缘区域且靠近所述数据线DL，同时所述延伸电极部123位于所述第一像素电极11的相对两侧，对所述第一像素电极11形成半包围。如此所述延伸电极部123可以起到屏蔽数据线DL的作用，避免所述数据线DL与所述第一像素电极11之间产生寄生电容，减少串扰。同时由于所述延伸电极部123的存在，在所述第一像素分区31的边缘无需再设置屏蔽层，可进一步提高所述显示面板100的开口率。其他说明请参照上述实施例，在此不再赘述。
在一种实施例中，请参照图5和图6，图5为本申请实施例提供的所述显示面板的另一种俯视结构示意图，图6为本申请实施例提供的子像素的又一种俯视结构示意图。与上述实施例不同的是，所述蓝色子像素3的第一像素分区31和第二像素分区32位于所述栅极的同侧，也即所述蓝色子像素3与所述红色子像素1以及所述绿色子像素2位于所述栅极扫描线GL的同一侧，且所述第一像素分区31与所述第二像素分区32位于同一显示像素区PA内。
具体地，所述第二像素分区32位于所述第一像素分区31远离所述栅极扫描线GL的一侧，所述第二像素分区32内的第二像素电极12设置有连接电极124，所述连接电极124从所述第一像素分区31的边缘穿过且与所述第一像素电极11间隔设置，用于连接所述第二像素电极12与所述第二驱动薄膜晶体管22的漏极222。其他说明请参照上述实施例，在此不再赘述。
在一种实施例中，请参照图7，图7为本申请实施例提供的子像素的再一种俯视结构示意图。与上述实施例不同的是，所述第二像素电极12包括第一主干电极121、围绕所述第一主干电极121的第一边框电极125以及连接所述第一主干电极121和所述第一边框电极125的第一分支电极122，其中部分所述第一边框电极125延伸至所述第一像素分区31，并半包围所述第一像素电极11。所述第一像素电极11包括第二主干电极111、围绕所述第二主干电极111的第二边框电极113以及电连接所述第二主干电极111和所述第二边框电极113的第二分支电极112。其中延伸至所述第一像素分区31的第一边框电极125与部分所述第二边框电极113平行间隔设置，且延伸至所述第一像素分区31的第一边框电极125的其中之一与所述第二驱动薄膜晶体管22的漏极222连接，未与所述第二驱动薄膜晶体管22的漏极222连接的第一边框电极125可以起到屏蔽数据线DL的作用，避免所述数据线DL与所述第一像素电极11之间产生寄生电容，减少串扰。同时由于延伸至所述第一像素分区31的所述第一边框电极125的存在，在所述第一像素分区31的边缘无需再设置屏蔽层，可进一步提高所述显示面板100的开口率。其他说明请参照上述实施例，在此不再赘述。
在一种实施例中，请参照图8，图8为本申请实施例提供的显示装置的剖面结构示意图，所述显示装置1000包括前述实施例其中之一的显示面板100、与所述显示面板100相对设置的背光模组200以及覆盖在所述显示面板100上的盖板300等。
根据上述实施例可知：
本申请提供一种显示面板和显示装置，显示面板括依次排布的红色子像素、绿色子像素和蓝色子像素，蓝色子像素的显示畴区的数量大于红色子像素的显示畴区的数量，并且大于绿色子像素的显示畴区的数量，通过对蓝色子像素进行差异化设计，而红色子像素和绿色子像素保持现有设计，在保证穿透率的前提下，能够减小大视角时显示画面中蓝色子像素出光的占比，解决了现有液晶显示器存在大视角色偏的问题。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种显示面板，其包括红色子像素、绿色子像素和蓝色子像素，其中：
    所述红色子像素、所述绿色子像素和所述蓝色子像素均包括多个显示畴区，所述蓝色子像素的显示畴区的数量大于所述红色子像素的显示畴区的数量，并且大于所述绿色子像素的显示畴区的数量。
  2. 根据权利要求1所述的显示面板，其中，所述红色子像素和所述绿色子像素均包括四个显示畴区，所述蓝色子像素包括八个显示畴区，且所述蓝色子像素包括间隔设置的第一像素分区和第二像素分区，所述第一像素分区和所述第二像素分区均包括四个显示畴区。
  3. 根据权利要求2所述的显示面板，其中，所述红色子像素、所述绿色子像素和所述蓝色子像素均还包括薄膜晶体管，所述蓝色子像素的薄膜晶体管数量大于所述红色子像素以及所述绿色子像素的薄膜晶体管数量，且所述红色子像素、所述绿色子像素和所述蓝色子像素的薄膜晶体管的栅极连接同一栅极扫描线。
  4. 根据权利要求3所述的显示面板，其中，所述第一像素分区和所述第二像素分区位于所述栅极扫描线的相对两侧。
  5. 根据权利要求4所述的显示面板，其中，所述第一像素分区的亮度大于所述第二像素分区的亮度，且所述第一像素分区与所述红色子像素以及所述绿色子像素位于所述栅极扫描线的同侧。
  6. 根据权利要求3所述的显示面板，其中，所述第一像素分区和所述第二像素分区位于所述栅极扫描线的同侧。
  7. 根据权利要求2所述的显示面板，其中，所述第一像素分区和所述第二像素分区的面积比小于2：3。
  8. 根据权利要求2所述的显示面板，其中，所述第一像素分区和所述第二像素分区分别设置有第一像素电极和第二像素电极，且所述第二像素电极的部分电极线延伸至所述第一像素分区，并半包围所述第一像素电极。
  9. 根据权利要求8所述的显示面板，其中，所述第二像素电极包括第一主干电极、与所述第一主干电极电连接的第一分支电极，部分所述第一分支电极延伸至所述第一像素分区，并半包围所述第一像素电极。
  10. 根据权利要求8所述的显示面板，其中，所述第二像素电极包括第一主干电极、围绕所述第一主干电极的第一边框电极以及电连接所述第一主干电极和所述第一边框电极的第一分支电极，其中部分所述第一边框电极延伸至所述第一像素分区，并半包围所述第一像素电极。
  11. 根据权利要求10所述的显示面板，其中，所述第一分支电极和所述第一主干电极的夹角范围为35度至45度。
  12. 根据权利要求11所述的显示面板，其中，所述第一像素电极包括第二主干电极、与所述第二主干电极电连接的第二分支电极，所述第二分支电极和所述第二主干电极的夹角范围为35度至45度。
  13. 一种显示装置，其包括显示面板、与所述显示面板相对设置的背光模组，所述显示面板包括红色子像素、绿色子像素和蓝色子像素，其中：
    所述红色子像素、所述绿色子像素和所述蓝色子像素均包括多个显示畴区，所述蓝色子像素的显示畴区的数量大于所述红色子像素的显示畴区的数量，并且大于所述绿色子像素的显示畴区的数量。
  14. 根据权利要求13所述的显示装置，其中，所述红色子像素和所述绿色子像素均包括四个显示畴区，所述蓝色子像素包括八个显示畴区，且所述蓝色子像素包括间隔设置的第一像素分区和第二像素分区，所述第一像素分区和所述第二像素分区均包括四个显示畴区。
  15. 根据权利要求14所述的显示装置，其中，所述红色子像素、所述绿色子像素和所述蓝色子像素均还包括薄膜晶体管，所述蓝色子像素的薄膜晶体管数量大于所述红色子像素以及所述绿色子像素的薄膜晶体管数量，且所述红色子像素、所述绿色子像素和所述蓝色子像素的薄膜晶体管的栅极连接同一栅极扫描线。
  16. 根据权利要求15所述的显示装置，其中，所述第一像素分区和所述第二像素分区位于所述栅极扫描线的相对两侧。
  17. 根据权利要求16所述的显示装置，其中，所述第一像素分区的亮度大于所述第二像素分区的亮度，且所述第一像素分区与所述红色子像素以及所述绿色子像素位于所述栅极扫描线的同侧。
  18. 根据权利要求15所述的显示装置，其中，所述第一像素分区和所述第二像素分区位于所述栅极扫描线的同侧。
  19. 根据权利要求14所述的显示装置，其中，所述第一像素分区和所述第二像素分区的面积比小于2：3。
  20. 根据权利要求14所述的显示装置，其中，所述第一像素分区和所述第二像素分区分别设置有第一像素电极和第二像素电极，且所述第二像素电极的部分电极线延伸至所述第一像素分区，并半包围所述第一像素电极。
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