CN111948858B - Liquid crystal display panel and liquid crystal display device - Google Patents
Liquid crystal display panel and liquid crystal display device Download PDFInfo
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- CN111948858B CN111948858B CN202010783495.5A CN202010783495A CN111948858B CN 111948858 B CN111948858 B CN 111948858B CN 202010783495 A CN202010783495 A CN 202010783495A CN 111948858 B CN111948858 B CN 111948858B
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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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
- G02F1/136—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
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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
- G02F1/136286—Wiring, e.g. gate line, drain line
Abstract
The invention discloses a liquid crystal display panel and a liquid crystal display device, wherein the liquid crystal display panel comprises a first substrate and a second substrate which are oppositely arranged; a black matrix disposed on one side of the first substrate; the first public electrode layer is arranged on one side of the black matrix; the second public electrode layer is arranged on one side of the second substrate; and the first metal layer is arranged between the first public electrode layer and the second public electrode layer and conducts the first public electrode layer and the second public electrode layer. According to the invention, the first metal layer is arranged, the first public electrode layer, the first metal layer and the second public electrode layer are in a parallel structure, so that the resistance is reduced, the conductivity is increased, and the coupling noise is also reduced, thereby the speed of recovering to the initial potential when being interfered by signals is high, the stability and the anti-interference capability are improved, the horizontal crosstalk phenomenon of the liquid crystal display panel is improved, and the production yield and the product quality are improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a liquid crystal display panel and a liquid crystal display device.
Background
The display principle of the liquid crystal display device is that different signals are input to the pixel electrodes through the data lines of the lower plate, a capacitor is formed between the pixel electrodes and the upper plate common electrode, so that liquid crystal in the liquid crystal box is deflected by a certain angle and then passes through the color filter layer, thereby realizing the display requirement of five colors, but the upper plate common electrode is a whole surface, parasitic capacitance is generated between the upper plate common electrode and the scanning lines/data lines except the capacitance between the pixel electrodes, when the signals of the scanning lines and the data lines change, the capacitance of the upper plate common electrode is disturbed, and if the original set potential cannot be restored in a short time, horizontal crosstalk is possibly generated.
When the horizontal crosstalk is a phenomenon that the panel displays partial horizontal pictures, abnormal brightness in the horizontal direction is generated, and the main reason is that the common electrode at the upper plate side is subjected to the coupling action of the data signal wiring, so that the signal of the common electrode at the upper plate side is disturbed. The horizontal crosstalk problem will seriously affect the quality of the display screen of the panel, and as the pursuit of the resolution of the panel in the market is higher and higher, especially in the 8K panel, the rise of the resolution leads to the shortening of the scanning time (1H time) of each row of scanning lines, and the time that the upper plate side common electrode voltage is allowed to recover is shorter, so that the horizontal crosstalk phenomenon is more likely to occur.
In summary, the liquid crystal display panel in the prior art has the technical problem that the liquid crystal display panel has the horizontal crosstalk phenomenon due to the influence of the coupling capacitance between the common electrode and the data line.
Disclosure of Invention
The embodiment of the invention provides a liquid crystal display panel and a liquid crystal display device, which are used for solving the technical problem that the liquid crystal display panel in the prior art has the horizontal crosstalk phenomenon due to the influence of the coupling capacitance of a common electrode and a data line.
In order to solve the above problems, in a first aspect, the present invention provides a liquid crystal display panel, comprising:
the device comprises a first substrate and a second substrate, wherein the first substrate and the second substrate are oppositely arranged;
a black matrix arranged on one side of the first substrate facing the second substrate;
a first common electrode layer disposed on a side of the black matrix facing the second substrate;
the second common electrode layer is arranged on one side of the second substrate facing the first substrate; a kind of electronic device with high-pressure air-conditioning system
The first metal layer is arranged between the first public electrode layer and the second public electrode layer and conducts the first public electrode layer and the second public electrode layer.
In some embodiments of the invention, the projection of the black matrix onto the first substrate covers the projection of the first metal layer onto the first substrate.
In some embodiments of the present invention, the display device further includes a plurality of data lines arranged in parallel along a first direction and a plurality of scan lines arranged in parallel along a second direction, the plurality of data lines and the plurality of scan lines are staggered in a mesh structure perpendicular to each other, wherein a projection of the first metal layer on the first substrate covers a projection of the plurality of data lines on the first substrate.
In some embodiments of the present invention, the black matrix is a mesh structure, the black matrix covers orthographic projections of the plurality of data lines and the plurality of scan lines, and the first metal layers are arranged in parallel along a first direction.
In some embodiments of the present invention, the second common electrode layer is a mesh structure, and the second common electrode layer covers orthographic projections of the plurality of data lines and the plurality of scan lines.
In some embodiments of the present invention, the first common electrode layer and the second common electrode layer are transparent conductive materials, and the black matrix is an opaque material.
In some embodiments of the invention, the second common electrode layer is an electrode layer without a black matrix, and the first common electrode layer and the second common electrode layer have the same potential.
In some embodiments of the invention, the first metal layer has a resistivity less than a resistivity of the first common electrode layer.
In some embodiments of the present invention, the semiconductor device further includes a gate insulating layer, a second metal layer, a passivation layer, a red color resist, a green color resist, and an organic planarization layer sequentially stacked between the second substrate and the second common electrode layer.
In a second aspect, the present invention provides a liquid crystal display device comprising a liquid crystal display panel according to any one of the first aspects.
Compared with the prior liquid crystal display panel and the prior liquid crystal display device, the liquid crystal display panel has the advantages that the first metal layer is arranged between the first public electrode layer and the second public electrode layer of the liquid crystal display panel, the first metal layer conducts the first public electrode layer and the second public electrode layer, the first metal layer and the second public electrode layer are in a parallel structure, and compared with the prior first public electrode layer, the parallel structure has the advantages that the resistance is reduced, the electric conductivity is increased, the coupling noise is reduced, the speed of recovering to an initial potential is high when the liquid crystal display panel is interfered by signals, the stability and the anti-interference capability of the first public electrode layer are improved, the horizontal crosstalk phenomenon of the liquid crystal display panel is improved, and the production yield and the product quality are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a liquid crystal display panel according to an embodiment of the invention;
FIG. 2 is a top view of a first substrate side in one embodiment of the invention; a kind of electronic device with high-pressure air-conditioning system
Fig. 3 is a top view of a second common electrode layer in an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The liquid crystal display panel in the prior art has the technical problem that the liquid crystal display panel has horizontal crosstalk phenomenon due to the influence of the coupling capacitance of the common electrode and the data line.
Based on this, the embodiment of the invention discloses a liquid crystal display panel and a liquid crystal display device. The following will describe in detail.
First, the present invention provides a liquid crystal display panel, as shown in fig. 1, and fig. 1 is a schematic structural diagram of the liquid crystal display panel according to an embodiment of the present invention. The liquid crystal display panel includes: a first substrate 101 and a second substrate 201, wherein the first substrate 101 is disposed opposite to the second substrate 201; a Black Matrix (BM) 102 provided on a side of the first substrate 101 facing the second substrate 201; a first common electrode layer 103 provided on a side of the black matrix 102 facing the second substrate 201; a second common electrode layer 202 disposed on a side of the second substrate 201 facing the first substrate 101; and a first metal layer 301 disposed between the first common electrode layer 103 and the second common electrode layer 202, and electrically connecting the first common electrode layer 103 and the second common electrode layer 202.
According to the embodiment of the invention, the first metal layer 301 is arranged between the first public electrode layer 103 and the second public electrode layer 202 of the liquid crystal display panel, the first metal layer 301 conducts the first public electrode layer 103 and the second public electrode layer 202, the equivalent resistances of the first public electrode layer 103, the first metal layer 301 and the second public electrode layer 202 are in a parallel structure, compared with the resistances of the first public electrode layer 103, the parallel structure is reduced, the electric conductivity is increased, the coupling noise is reduced, so that the speed of recovering to the initial potential is high when the signal interference is received, the stability and the anti-interference capability of the first public electrode layer 103 are improved, the horizontal crosstalk phenomenon of the liquid crystal display panel is improved, and the production yield and the product quality are improved.
In one embodiment of the present invention, the projection of the black matrix 102 onto the first substrate 101 covers the projection of the first metal layer 301 onto the first substrate 101. Since the black matrix 102 and the first metal layer 301 are generally made of opaque materials, in order to avoid affecting the light emission of the lcd panel as much as possible, and not to lose or lose little the aperture ratio of the pixels in the panel, the light shielding region of the black matrix 102 and the light shielding region of the first metal layer 301 are overlapped, and the newly added first metal layer 301 does not increase the light shielding area of the lcd panel, and in this embodiment, the aperture ratio of the lcd panel is the same as the aperture ratio of the original lcd panel before the first metal layer 301 is added.
On the basis of the above embodiment, as shown in fig. 2, fig. 2 is a top view of the first substrate side in one embodiment of the present invention. In the figure, part of the film layers are actually shielded from each other and invisible, and for convenience of description, perspective treatment is performed. The liquid crystal display panel further comprises a plurality of data lines which are arranged in parallel along the first direction Ry and a plurality of scanning lines which are arranged in parallel along the second direction Rx, wherein the data lines and the scanning lines are mutually perpendicular and staggered to form a net structure. Since the liquid crystal display panel is generally rectangular, the first direction Ry and the second direction Rx are vertical and horizontal directions in the figure, the first direction Ry and the second direction Rx are vertical, the plurality of data lines are arranged along one direction of the first direction Ry or the second direction Rx, and the plurality of data lines and the plurality of scan lines are respectively arranged along the other direction, and the plurality of data lines and the plurality of scan lines are mutually vertically staggered, in this embodiment, the plurality of data lines are in the first direction Ry, the plurality of scan lines are in the second direction Rx, and the projection of the first metal layer 301 on the first substrate 101 covers the projection of the plurality of data lines on the first substrate 101.
The black matrix 102 is a mesh structure, the black matrix 102 covers the orthographic projections of the plurality of data lines and the plurality of scan lines, and the first metal layers 301 are arranged in parallel along the first direction Ry. Since the plurality of data lines and the plurality of scan lines are also generally made of opaque materials, in order to avoid affecting the aperture ratio of the liquid crystal display panel, the arrangement positions of the black matrix 102 are positions corresponding to the plurality of data lines and the plurality of scan lines, and the orthographic projections of the plurality of data lines and the plurality of scan lines are also covered by the black matrix 102.
The first metal layers 301 are arranged in parallel along the first direction Ry. The first metal layer 301 includes a plurality of branches that are distributed parallel to each other, and an arrangement direction of the first metal layer 301 is parallel to the plurality of data lines. In this embodiment, the black matrix 102 has a plurality of branches vertically staggered with each other to ensure that the plurality of data lines and the plurality of scan lines in different directions can be covered simultaneously, and the first metal layer 301 is arranged only in one direction along the first direction Ry and is covered by the projection of the black matrix 102. It is preferable that the first metal layer 301 is disposed in the first direction Ry, and if other requirements exist, the first metal layer 301 may also be disposed in the second direction Rx or have a mesh structure that is perpendicular to each other and staggered, where the first metal layer 301 is still covered by the projection of the black matrix 102 of the mesh structure.
As can be seen from the figure, in the first substrate 101, the effective light-transmitting area that does not overlap with the projection of the black matrix 102 occupies most of the area, while in the light-impermeable area, the width of each branch in the black matrix 102 is larger than the width of each branch in the first metal layer 301, each branch in the first metal layer 301 overlaps with the projection of a corresponding branch in the black matrix 102, the width of each branch in the black matrix 102 is D1, the width of each branch in the first metal layer 301 is D2, D1 > D2, and to ensure that the width of each branch in the first metal layer 301 does not exceed the projection range of the black matrix 102, the width of each branch in the first metal layer 301 must be smaller than or equal to the width of each branch in the black matrix 102, but the width of each branch in the first metal layer 301 must be smaller than the width of each branch in the black matrix 102 due to processing errors and the like.
As shown in fig. 3, fig. 3 is a top view of a second common electrode layer according to an embodiment of the present invention. In some embodiments of the present invention, the second common electrode layer 202 is a mesh structure, and the second common electrode layer 202 covers orthographic projections of the plurality of data lines and the plurality of scan lines. In the above embodiment, it has been described that the plurality of data lines and the scan lines are respectively arranged along the first direction Ry and the second direction Rx, and the second common electrode layer 202 is required to implement the light shielding function, and the arrangement position in the second common electrode layer 202 should also correspond to the positions of the plurality of data lines and the plurality of scan lines. The first common electrode layer 103 and the second common electrode layer 202 are made of transparent conductive material, preferably Indium Tin Oxide (ITO), the black matrix 102 is made of opaque material, and the first metal layer 301 is also made of opaque material.
In another embodiment of the present invention, the second common electrode layer 202 is an electrode layer without a black matrix (Data Line BM Less, DBS), and the first common electrode layer 103 has the same potential as the second common electrode layer 202. The liquid crystal display panel further includes data lines, and the second common electrode layer 202 is disposed above the plurality of data lines, so that a black matrix above the data lines can be omitted compared with a conventional pixel structure, and the purpose of improving the contrast ratio of the liquid crystal display panel can be achieved. In this embodiment, the DBS electrode is disposed above the plurality of data lines, and the potential of the DBS electrode is the same as that of the first common electrode layer 103, so that the liquid crystal molecules corresponding to the data lines are always in an undeflected state, and further play a role in shading light. The first common electrode layer 103 is conducted with the DBS electrode through the first metal layer 301, so that potential difference generated when the first common electrode layer 103 and the DBS electrode are subjected to signal coupling in the plurality of data lines is avoided, and light leakage at the position is further improved.
Further optimizing the first metal layer 301, the resistivity of the first metal layer 301 is smaller than the resistivity of the first common electrode layer 103. In order to further reduce the resistance in the parallel structure of the first common electrode layer 103 and the first metal layer 301, the second common electrode layer 202, the first metal layer 301 is made of a material with a smaller resistivity, at least a material with a resistivity smaller than that of the first common electrode layer 103, preferably one or a combination of several of aluminum, copper, molybdenum or titanium, or other metal materials with a smaller resistivity.
Preferably, the liquid crystal display panel further includes a Gate Insulator (GI) 203, a second metal layer 204, a passivation layer (PV) 205, a red resistor 206, a green resistor 207, and an organic planarization layer (Polymer Film on Array, PFA) 208, wherein the Gate Insulator 203, the second metal layer 204, the passivation layer 205, the red resistor 206, the green resistor 207, and the organic planarization layer 208 are sequentially stacked between the second substrate 201 and the second common electrode layer 202.
Preferably, the first substrate 101 is a color film substrate, and the second substrate 201 is an array substrate.
In order to better implement the liquid crystal display panel in the embodiment of the invention, on the basis of the liquid crystal display panel, the embodiment of the invention also provides a liquid crystal display device, which comprises a rotating shaft and the liquid crystal display panel in the embodiment.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and the portions of one embodiment that are not described in detail in the foregoing embodiments may be referred to in the foregoing detailed description of other embodiments, which are not described herein again. In the implementation, each unit or structure may be implemented as an independent entity, or may be implemented as the same or several entities in any combination, and the implementation of each unit, structure or operation may refer to the foregoing method embodiments, which are not repeated herein.
The foregoing has outlined rather broadly the more detailed description of embodiments of the invention, wherein the principles and embodiments of the invention are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention.
Claims (8)
1. A liquid crystal display panel, comprising:
the device comprises a first substrate and a second substrate, wherein the first substrate and the second substrate are oppositely arranged;
a black matrix arranged on one side of the first substrate facing the second substrate;
a first common electrode layer disposed on a side of the black matrix facing the second substrate;
the second common electrode layer is arranged on one side of the second substrate facing the first substrate; a kind of electronic device with high-pressure air-conditioning system
The first metal layer is arranged between the first public electrode layer and the second public electrode layer and conducts the first public electrode layer and the second public electrode layer;
the display panel further comprises a plurality of data lines which are arranged in parallel along a first direction and a plurality of scanning lines which are arranged in parallel along a second direction, wherein the data lines and the scanning lines are mutually perpendicular and staggered to form a net structure, and the projection of the first metal layer on the first substrate covers the projection of the data lines on the first substrate;
the second common electrode layer is an electrode layer without a black matrix, the second common electrode layer is of a net structure, the second common electrode layer is connected with the first common electrode layer in parallel, and the second common electrode layer covers orthographic projections of the plurality of data lines and the plurality of scanning lines.
2. The liquid crystal display panel of claim 1, wherein the projection of the black matrix onto the first substrate covers the projection of the first metal layer onto the first substrate.
3. The liquid crystal display panel according to claim 1, wherein the black matrix is a mesh structure, the black matrix covers orthographic projections of the plurality of data lines and the plurality of scan lines, and the first metal layers are arranged in parallel along a first direction.
4. The liquid crystal display panel according to claim 1, wherein the first common electrode layer and the second common electrode layer are transparent conductive materials, and the black matrix is an opaque material.
5. The liquid crystal display panel according to claim 1, wherein a potential of the first common electrode layer is the same as a potential of the second common electrode layer.
6. The liquid crystal display panel according to claim 1, wherein a resistivity of the first metal layer is smaller than a resistivity of the first common electrode layer.
7. The liquid crystal display panel according to claim 1, further comprising a gate insulating layer, a second metal layer, a passivation layer, a red color resist, a green color resist, and an organic planarization layer, wherein the gate insulating layer, the second metal layer, the passivation layer, the red color resist, the green color resist, and the organic planarization layer are sequentially stacked between the second substrate and the second common electrode layer.
8. A liquid crystal display device comprising the liquid crystal display panel according to any one of claims 1 to 7.
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| CN113156651A (en) * | 2021-04-26 | 2021-07-23 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN114200698B (en) * | 2021-12-10 | 2023-06-27 | 武汉华星光电技术有限公司 | Display panel and display device |
| CN115373189B (en) * | 2022-07-29 | 2023-07-18 | 惠科股份有限公司 | Array substrate, display device and driving circuit |
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| CN107290909B (en) * | 2017-06-30 | 2020-09-29 | 深圳市华星光电技术有限公司 | Array substrate and liquid crystal display panel |
| CN107656405A (en) * | 2017-11-17 | 2018-02-02 | 深圳市华星光电半导体显示技术有限公司 | Array base palte, liquid crystal display panel and liquid crystal display |
| CN109633974A (en) * | 2019-02-18 | 2019-04-16 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and preparation method thereof |
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