CN111240116B - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN111240116B
CN111240116B CN202010194802.6A CN202010194802A CN111240116B CN 111240116 B CN111240116 B CN 111240116B CN 202010194802 A CN202010194802 A CN 202010194802A CN 111240116 B CN111240116 B CN 111240116B
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Prior art keywords
pixel
scan line
display panel
sub
pixel region
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CN202010194802.6A
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CN111240116A (en
Inventor
陈杰
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TCL Huaxing Photoelectric Technology Co Ltd
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TCL Huaxing Photoelectric Technology Co Ltd
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136286Wiring, e.g. gate line, drain line
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/1323Arrangements for providing a switchable viewing angle
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3696Generation of voltages supplied to electrode drivers

Abstract

The embodiment of the application provides a display panel and a display device, the display panel comprises a plurality of scanning lines, a plurality of data lines, a pixel electrode and a metal layer, the plurality of scanning lines are arranged along a first direction, the plurality of data lines are arranged along a second direction, the scanning lines and the data lines are crossed to form a plurality of pixel areas, every two adjacent scanning lines form a row of pixel units, the pixel electrode is arranged in the pixel area, the metal layer is arranged below the pixel electrode, and when the metal layer irradiates light, different voltages are provided for the scanning lines of the adjacent rows of pixel units so that the pixel electrodes arranged at intervals form different pretilt angles. According to the display panel, the power supply mode of the drive circuit is changed, so that different signals are supplied to the scanning lines during display drive, different alignment directions of multi-region liquid crystal are realized, the visual angle of the display panel is improved, and the production cost is low.

Description

Display panel and display device
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
With the rapid development of LCD (Liquid Crystal Display), in the PSVA (vertical alignment Liquid Crystal) technology, the Liquid Crystal needs to be aligned electrically, so that a pixel region can divide a pixel into multiple regions, and the alignment of the regions is different, so that the Liquid Crystal molecules have symmetrical orientations and are optically complementary to each other, thereby increasing the viewing angle. Viewing angle improvement so far products have mainly used pixel designs to display from 2 to 4 to 8 regions.
Most products in the LCD panel of the PSVA technology in the existing panel market are designed to be 4 regions or 8 regions, and the design of the 8 regions of the existing product requires 3 TFT (Thin Film Transistor) design structures, which makes the requirements for the process and the manufacturing procedure more complicated than the design of the 4 regions.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a display panel which is low in production cost and can increase the viewing angle.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which can increase the visual angle and have lower production cost.
The application provides a display panel, including:
the pixel structure comprises a plurality of grid lines and a plurality of data lines, wherein the plurality of scanning lines are arranged along a first direction, the plurality of data lines are arranged along a second direction, the scanning lines and the data lines are crossed to form a plurality of pixel regions, and every two adjacent scanning lines form a row of pixel units;
a pixel electrode disposed in the pixel region;
a metal layer disposed under the pixel electrode;
when the metal layer illuminates, different voltages are provided for the scanning lines of the pixel units in the adjacent rows.
In some embodiments, the scan lines include a first scan line, a second scan line, a third scan line, a fourth scan line, a fifth scan line, a sixth scan line, and a seventh scan line, wherein the first scan line and the fifth scan line have a voltage of 5 volts, and the third scan line and the seventh scan line have a voltage of 2 volts.
In some embodiments, the scan lines include a first scan line, a second scan line, a third scan line, a fourth scan line, a fifth scan line, a sixth scan line, and a seventh scan line, wherein the first scan line and the fifth scan line have a voltage of 2 volts, and the third scan line and the seventh scan line have a voltage of 5 volts.
In some embodiments, the plurality of pixel regions include a first sub-pixel region, a second sub-pixel region, and a third sub-pixel region, the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region are sequentially arranged along a first direction, the pixel electrode includes a first pixel unit, a second pixel unit, and a third pixel unit, the first pixel unit is correspondingly disposed in the first sub-pixel region, the second pixel unit is correspondingly disposed in the second sub-pixel region, and the third pixel unit is correspondingly disposed in the third sub-pixel region.
In some embodiments, any two of the first pixel unit, the second pixel unit, and the third pixel unit may be disposed between adjacent data lines and adjacent scan lines.
In some embodiments, the first pixel unit, the second pixel unit, and the third pixel unit each include four regions therein.
In some embodiments, the first sub-pixel region is a red pixel region, the second sub-pixel region is a green pixel region, and the third sub-pixel region is a blue pixel region.
In some embodiments, a liquid crystal layer is further included, the liquid crystal layer being disposed over the pixel layer.
In some embodiments, the display device further includes a thin film transistor electrically connected to the scan line and the data line.
The embodiment of the application provides a display device, which comprises the display device.
The display panel and the display device provided by the embodiment of the application comprise a plurality of scanning lines, a plurality of data lines, pixel electrodes and a metal layer, wherein the plurality of scanning lines are arranged along a first direction, the plurality of data lines are arranged along a second direction, the scanning lines and the data lines are crossed to form a plurality of pixel areas, every two adjacent scanning lines form a row of pixel units, the pixel electrodes are arranged in the pixel areas, the metal layer is arranged below the pixel electrodes, and when the metal layer irradiates light, different voltages are provided for the scanning lines of the adjacent rows of pixel units. According to the display panel, the power supply mode of the drive circuit is changed, so that the scanning lines have different signals during display drive, different alignment directions of multi-region liquid crystal are realized, the visual angle of the display panel is improved, and the production cost is low.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a liquid crystal layer according to an embodiment of the present disclosure.
Fig. 3 is a schematic structural diagram of a display device in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that in the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application.
The embodiments of the present application provide a display panel and a display device, and the display panel is described in detail below.
Referring to fig. 1, fig. 1 is a schematic view of a display panel structure according to an embodiment of the present disclosure. The display panel 10 includes a plurality of scan lines 11 and a plurality of data lines 12, pixel electrodes 13, and a metal layer 14, the scan lines 11 are arranged along a first direction, the data lines 12 are arranged along a second direction, the scan lines 11 and the data lines 12 intersect to form a plurality of pixel regions 15, wherein every two adjacent scan lines 11 form a row of pixel units 15a, the pixel electrodes 13 are disposed in the pixel regions 15, and the metal layer 14 is disposed below the pixel electrodes 13, wherein when the metal layer 14 illuminates, different voltages are provided for the scan lines 11 of the adjacent rows of pixel units 15a.
It should be noted that the specific number of the scan lines 11 and the data lines 12 is not described in detail in this embodiment. In addition, the first direction is a direction extending vertically, and the second direction is a direction extending laterally. The scanning lines 11 and the data lines 12 intersect to form a plurality of pixel regions 15, and specifically, the scanning lines 11 and the data lines 12 are arranged in a crisscross manner. Wherein each two adjacent scanning lines 11 form a row of pixel cells 15a. For example, the scan lines 11 include a first scan line 111, a second scan line 112, a third scan line 113, a fourth scan line 114, a fifth scan line 115, and a sixth scan line 116, then the first scan line 111 and the second scan line 112 form one row of pixel units 15a, the third scan line 113 and the fourth scan line 114 form another row of pixel units 15a, and the fifth scan line 115 and the sixth scan line 116 form yet another row of pixel units 15a.
Wherein the pixel electrode 13 is disposed in the pixel region 15. Specifically, the pixel electrode 13 includes a red pixel unit, a green pixel unit, and a blue pixel unit.
The metal layer 14 is a conductive electrode, and the metal layer 14 is used for supplying a voltage to the pixel electrode 13. When the metal layer 14 is illuminated, different voltages are provided for the scanning lines 11 of the pixel units 15a in adjacent rows to make the pixel electrodes 13 arranged at intervals drive different pretilt angles formed by the liquid crystal layer. That is, in the liquid crystal alignment process, the metal layer 14 is irradiated, and the voltage of the scan line 11 of the pixel unit 15a in the adjacent row is changed, so that the pixel electrodes 13 in the interval generate different voltages, thereby realizing different alignment orientations of the multi-domain liquid crystal, and improving the viewing angle of the display panel 10.
The scan lines 11 include a first scan line 111, a second scan line 112, a third scan line 113, a fourth scan line 114, a fifth scan line 115, a sixth scan line 116, and a seventh scan line 11, wherein the voltages of the first scan line 111 and the fifth scan line 115 are 5 volts, and the voltages of the third scan line 113 and the seventh scan line 117 are 2 volts.
When liquid crystal alignment is performed, the voltage of the first scanning line 111 and the fifth scanning line 115 is 5 volts, and the voltage of the third scanning line 113 and the seventh scanning line 11 is 2 volts. Of course, in some embodiments, the voltages of the first scan line 111 and the fifth scan line 115 may also be 2 volts, and the voltages of the third scan line 113 and the seventh scan line 11 may also be 5 volts. In addition, the voltages of the first scanning line 111 and the fifth scanning line 115 may be 3 volts, and the voltages of the third scanning line 113 and the seventh scanning line 11 may be 6 volts. Alternatively, the voltages of the first scanning line 111 and the fifth scanning line 115 may be 6 volts, and the voltages of the third scanning line 113 and the seventh scanning line 11 may be 3 volts. In the embodiment of the present application, the specific change of the voltage can be adjusted according to the specific requirement of the increased viewing angle. In the embodiment of the present application, the voltages of the first scan line 111 and the fifth scan line 115 may also be 2 volts, and the voltages of the third scan line 113 and the seventh scan line 11 may also be 5 volts. This can achieve a better viewing angle enlarging effect of the display panel 10.
The plurality of pixel regions 15 include a first sub-pixel region 151, a second sub-pixel region 152, and a third sub-pixel region 153, the first sub-pixel region 151, the second sub-pixel region 152, and the third sub-pixel region 153 are sequentially arranged along a second direction, the pixel electrode 13 includes a first pixel unit 131, a second pixel unit 132, and a third pixel unit 133, the first pixel unit 131 is correspondingly disposed in the first sub-pixel region 151, the second pixel unit 132 is correspondingly disposed in the second sub-pixel region 152, and the third pixel unit 133 is correspondingly disposed in the third sub-pixel region 153.
Any two of the first pixel unit 131, the second pixel unit 132 and the third pixel unit 133 may be disposed between the adjacent data lines 12 and the adjacent scan lines 11. For example, the first scan line 111, the second scan line 112, and the sub-pixel region 15 surrounded by the first data line 12 and the second data line 12 may be disposed with the first pixel unit 131 and the second pixel unit 132. The effect of increasing the viewing angle can be further improved through the pixel arrangement.
The first pixel unit 131, the second pixel unit 132, and the third pixel unit 133 each include four regions.
The first sub-pixel region 151 is a red pixel region 15, the second sub-pixel region 152 is a green pixel region 15, and the third sub-pixel region 153 is a blue pixel region 15.
Referring to fig. 2, a schematic structural diagram of a liquid crystal layer according to an embodiment of the present disclosure is shown. Wherein the display panel 10 further comprises a liquid crystal layer 16, the liquid crystal layer 16 being disposed above the pixel layer. In the liquid crystal alignment, mainly the liquid crystal molecules in the liquid crystal layer 16 deflect, and different voltages are provided to the scan lines 11 of the pixel units 15a in adjacent rows, so that different multi-domain liquid crystal alignment orientations are realized, and the viewing angle of the display panel 10 is improved.
The display panel 10 further includes a thin film transistor electrically connected to the scan line 11 and the data line 12.
Note that the thin film transistor is a switching unit, and can supply a voltage to the scan line 11 and the data line 12.
The display panel 10 provided in the embodiment of the present application, the display panel 10 includes a plurality of scan lines 11 and a plurality of data lines 12, a pixel electrode 13, and a metal layer 14, the plurality of scan lines 11 are arranged along a first direction, the plurality of data lines 12 are arranged along a second direction, the scan lines 11 and the data lines 12 intersect to form a plurality of pixel regions 15, wherein every two adjacent scan lines 11 form a row of pixel units 15a, the pixel electrode 13 is disposed in the pixel region 15, and the metal layer 14 is disposed below the pixel electrode 13, wherein when the metal layer 14 illuminates, different voltages are provided for the scan lines 11 of the adjacent rows of pixel units 15a. This application is through the power supply mode of the drive circuit of change design for scanning line 11 has different signals during display drive, thereby realizes that multizone liquid crystal alignment orientation is different, thereby has improved display panel 10's visual angle, and manufacturing cost is lower.
An embodiment of the present disclosure provides a display panel 100, and fig. 3 is a schematic structural diagram of a display device in an embodiment of the present disclosure. The display device 100 includes the display panel 10, and the display device 100 may further include other devices, such as a bezel. The display panel and other devices and their assembly in the embodiments of the present application are well known to those skilled in the art, and will not be described herein in detail.
The display panel and the display device provided in the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are described herein by applying specific examples, and the description of the above embodiments is only provided to help understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A display panel, comprising:
the pixel structure comprises a plurality of scanning lines and a plurality of data lines, wherein the plurality of scanning lines are arranged along a first direction, the plurality of data lines are arranged along a second direction, the scanning lines and the data lines are crossed to form a plurality of pixel regions, and every two adjacent scanning lines form a row of pixel units;
a pixel electrode disposed in the pixel region;
the metal layer is arranged below the pixel electrode, is a conductive electrode and is used for providing voltage for the pixel electrode;
when the metal layer is illuminated, different voltages are provided for the scanning lines of the pixel units in the adjacent rows.
2. The display panel according to claim 1, wherein the scan lines include a first scan line, a second scan line, a third scan line, a fourth scan line, a fifth scan line, a sixth scan line, and a seventh scan line, wherein the voltages of the first scan line and the fifth scan line are 5 volts, and the voltages of the third scan line and the seventh scan line are 2 volts.
3. The display panel according to claim 1, wherein the scan lines include a first scan line, a second scan line, a third scan line, a fourth scan line, a fifth scan line, a sixth scan line, and a seventh scan line, wherein a voltage of the first scan line and the fifth scan line is 2 volts, and a voltage of the third scan line and the seventh scan line is 5 volts.
4. The display panel according to claim 1, wherein the plurality of pixel regions include a first sub-pixel region, a second sub-pixel region, and a third sub-pixel region, the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region are sequentially arranged along a first direction, the pixel electrode includes a first pixel unit, a second pixel unit, and a third pixel unit, the first pixel unit is correspondingly disposed in the first sub-pixel region, the second pixel unit is correspondingly disposed in the second sub-pixel region, and the third pixel unit is correspondingly disposed in the third sub-pixel region.
5. The display panel according to claim 4, wherein any two of the first pixel unit, the second pixel unit, and the third pixel unit are disposed between adjacent data lines and adjacent scan lines.
6. The display panel according to claim 4, wherein each of the first pixel unit, the second pixel unit, and the third pixel unit includes four regions.
7. The display panel according to claim 4, wherein the first sub-pixel region is a red pixel region, the second sub-pixel region is a green pixel region, and the third sub-pixel region is a blue pixel region.
8. The display panel according to claim 1, further comprising a liquid crystal layer disposed over the pixel layer.
9. The display panel according to claim 1, further comprising a thin film transistor electrically connected to the scan line and the data line.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
CN202010194802.6A 2020-03-19 2020-03-19 Display panel and display device Active CN111240116B (en)

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US6515728B1 (en) * 2000-09-07 2003-02-04 Lg.Philips Lcd Co., Ltd. Multi-domain liquid crystal display device

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CN1204445C (en) * 2002-02-04 2005-06-01 富士通显示技术株式会社 Liquid crystal display and producing method thereof
CN101055379A (en) * 2007-06-08 2007-10-17 友达光电股份有限公司 Liquid crystal display panel, photoelectric device and method for manufacturing the same
CN105280150B (en) * 2015-11-13 2017-09-01 深圳市华星光电技术有限公司 Pixel-driving circuit, array base palte and liquid crystal panel
CN106094382B (en) * 2016-08-25 2019-11-08 京东方科技集团股份有限公司 Display panel, display device and its driving method
CN107591144B (en) * 2017-10-24 2020-06-26 惠科股份有限公司 Driving method and driving device of display panel

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