CN116300222A - Display panel and electronic equipment - Google Patents
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- CN116300222A CN116300222A CN202310279472.4A CN202310279472A CN116300222A CN 116300222 A CN116300222 A CN 116300222A CN 202310279472 A CN202310279472 A CN 202310279472A CN 116300222 A CN116300222 A CN 116300222A
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- 239000011159 matrix material Substances 0.000 claims description 7
- 238000002834 transmittance Methods 0.000 description 38
- 230000001795 light effect Effects 0.000 description 9
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- 230000005684 electric field Effects 0.000 description 8
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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
- G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136213—Storage capacitors associated with the pixel electrode
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Abstract
The embodiment of the disclosure provides a display panel and electronic equipment, the display panel includes: a plurality of pixel regions and a plurality of pixel driving circuit regions, the pixel regions being alternately disposed adjacent to the pixel driving circuit regions; the pixel region comprises a plurality of pixels, the data signal lines are arranged between the pixels of adjacent columns, and the data signal lines are connected with the pixel driving circuits; the pixel includes: the pixel electrode layer, the public electrode layer and the liquid crystal layer are arranged on the first insulating layer, the second insulating layer covers the pixel electrode layer and the data signal line, the public electrode layer is arranged on the second insulating layer, and the liquid crystal layer is arranged on the public electrode layer; the common electrode layer is arranged at a preset position on the second insulating layer corresponding to the data signal line, the preset position at least comprises a part of adjacent area between two adjacent pixels, and the common electrode layer at the preset position is connected with the common electrode layer of the two adjacent pixels.
Description
Technical Field
The disclosure relates to the field of display, and in particular, to a display panel and an electronic device.
Background
The high resolution of the display means finer display image quality, and of course, higher resolution means smaller pixel size of the product and more complicated metal line design, which limit the transmittance level of the high resolution product. The transmittance of the high-resolution product is not high, so that the backlight brightness needs to be improved for showing a good visual effect, the power consumption of the product is improved, and the cost of the whole machine is increased.
Therefore, in order to improve the transmittance level of the high resolution product, studies have been conducted in various aspects such as pixel design, panel material, film material design, and the like. Among them, in terms of pixel design, a certain achievement has been achieved. For example, with HADS pixels, BM (black matrix) line width can be made narrower by shielding the coupling electric field by COM electrode (common electrode layer) to obtain higher light efficiency, but HADS pixels have problems of higher Loading and difficult charging. In the aspect of ADS pixels, researchers develop high-transmittance pixel designs such as a horse shape, the pixel light efficiency of which is shown in figure 1, and the transmittance can be improved by 10% by using negative liquid crystal in a matching way.
However, since the pixel of the horse-character shape adopts the ADS structure, it is necessary to ensure that the pixel electrode and the DATA line (DATA signal line) need to be kept at a sufficient distance to reduce the influence of parasitic capacitance, so as to prevent the occurrence of cross talk defect, but this limits the further improvement of the light efficiency of the pixel of the horse-character shape.
Disclosure of Invention
In view of the above, an embodiment of the present disclosure provides a display panel and an electronic device, which are used for solving the following problems in the prior art: the existing horse-shaped pixel adopts an ADS structure, so that the pixel electrode and the DATA line need to be reserved with enough distance to reduce the influence of parasitic capacitance, thereby preventing the occurrence of cross talk defect, further improving the pixel light efficiency is limited, and the improvement of product performance is not facilitated.
In one aspect, an embodiment of the present disclosure provides a display panel, including: a plurality of pixel regions and a plurality of pixel driving circuit regions, the pixel regions being alternately disposed adjacent to the pixel driving circuit regions; the pixel area comprises a plurality of pixels, data signal lines are arranged between pixels in adjacent columns, and the data signal lines are connected with the pixel driving circuits; the pixel includes: the pixel electrode layer and the data signal line are arranged on the first insulating layer, the second insulating layer covers the pixel electrode layer and the data signal line, the common electrode layer is arranged on the second insulating layer, and the liquid crystal layer is arranged on the common electrode layer; and a common electrode layer is arranged at a preset position on the second insulating layer corresponding to the data signal line, the preset position at least comprises a part of adjacent area between two adjacent pixels, and the common electrode layer at the preset position is connected with the common electrode layers of the two adjacent pixels.
In some embodiments, the length of the portion of the contiguous region covered by the common electrode layer is greater than one third of the pixel length.
In some embodiments, the length of the partial adjacent region covered by the common electrode layer is equal to one half of a pixel length, which is a length of the pixel in a direction in which the data signal line is located.
In some embodiments, the partial adjacent region covered by the common electrode layer and the uncovered adjacent region are in a symmetrical relationship with a straight line where a midpoint of the pixel length is located, wherein the pixel length is a length of the pixel in a direction where the data signal line is located.
In some embodiments, adjacent partial adjacent regions covered by the common electrode layer in the same row of pixel regions are staggered up and down.
In some embodiments, the data signal line has a width smaller than that of the black matrix; the width of the common electrode layer of the partial adjacent region is greater than the width of the black matrix.
In some embodiments, the predetermined position further includes a projection region corresponding to the pixel driving circuit region.
In some embodiments, the liquid crystal layer is a negative liquid crystal.
In some embodiments, the negative liquid crystal has a dielectric constant in the short axis direction that is greater than the dielectric constant in the long axis direction.
In another aspect, an embodiment of the present disclosure provides an electronic device, including: the display panel provided by any embodiment of the present disclosure.
The embodiment of the disclosure can simulate based on an 8K pixel with 85 inches, so that the light effect of the pixel can be further improved by 9% on the basis of a horse-shaped pixel, compared with other designs of non-horse-shaped pixels, the transmittance is improved by almost 20%, and the design can be widely applied to high-resolution products such as 8K, 16K and the like.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a diagram of a pixel light effect provided by the prior art;
fig. 2 is a layout diagram of a pixel in a horse-character shape according to the prior art;
FIG. 3 is a schematic cross-sectional view of a pixel in a horse-character shape according to the prior art;
fig. 4 is a schematic layout diagram of a display panel according to a first embodiment of the present disclosure;
fig. 5 is a partially structured enlarged wiring diagram provided in the first embodiment of the present disclosure;
FIG. 6 is a schematic cross-sectional view taken along AA' according to a first embodiment of the present disclosure;
fig. 7 is a schematic cross-sectional structure along BB' according to the first embodiment of the present disclosure;
fig. 8 is a schematic layout view of a display panel according to a fourth embodiment of the present disclosure;
fig. 9 is a partially structured enlarged wiring diagram provided in a fourth embodiment of the present disclosure;
FIG. 10 is a graph of pixel light efficiency provided by a fourth embodiment of the present disclosure;
fig. 11 is a schematic layout view of a display panel according to a fourth embodiment of the present disclosure.
Reference numerals:
a pixel region 1, a pixel driving circuit region 2, a pixel 3, a data signal line 4, a pixel electrode layer 5, a common electrode layer 6, a first insulating layer 7, a second insulating layer 8, a liquid crystal layer 9, a predetermined position 10, and a partially adjacent region 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed description of known functions and known components.
The high resolution means that the pixel size of the product is smaller and the design of the metal wire is more complicated, and these constraints are used for high resolution of the transmittance level of the product, the transmittance is not high, and in order to show good visual effect, the backlight brightness needs to be improved, the power consumption of the product is improved, and the cost of the whole machine is also increased, so that the transmittance level of the high resolution product needs to be continuously improved.
In the prior art, for example, the HADS pixel is adopted, and the BM line width can be narrower due to the shielding effect of the COM electrode, so that higher light efficiency is obtained, but the HADS pixel also has the problems of higher Loading and difficult charging. In the aspect of ADS pixels, researchers develop high-transmittance pixel designs such as horse-shaped designs, and the transmittance can be improved by 10% by using negative liquid crystals in a matching way. However, since the ADS structure is adopted in the pixel, it is necessary to ensure that the 2ITO and DATA lines are reserved a sufficient distance to reduce the influence of parasitic capacitance, so as to prevent the occurrence of cross talk failure.
Fig. 2 is a wiring design of the pixel in the shape of a horse, and fig. 3 is a schematic cross-sectional structure of the pixel in the shape of a horse. Ma Zixing the pixels are based on conventional ADS pixels, which are prepared in the general order of 1ITO→gate→active→S/D (data signal line) →PVX (insulating layer) →2ITO for each level. 1ITO serves as a reference common electrode, and 2ITO serves as a pixel electrode. Through the design of punching one side of the 2ITO, the transmittance can be improved by being matched with BM narrowing. However, the 2ITO (the light effect of the missing parts of the upper right and lower left corners of the pixel light effect as shown in fig. 1) on the non-perforated side needs to be kept a sufficient distance from Data to prevent the influence of cross talk, which hinders the further improvement of transmittance.
In order to solve the above-mentioned problems, a first embodiment of the present disclosure provides a display panel, the wiring schematic of which is shown in fig. 4, fig. 5 is a partially enlarged wiring diagram, fig. 6 is a schematic sectional structure taken along AA 'in fig. 5, fig. 7 is a schematic sectional structure taken along BB' in fig. 5, the display panel includes:
a plurality of pixel regions 1 and a plurality of pixel driving circuit regions 2, the pixel regions being alternately arranged adjacent to the pixel driving circuit regions;
the pixel region includes a plurality of pixels 3, and data signal lines 4 are provided between pixels of adjacent columns, the data signal lines being connected to respective pixel driving circuits;
the pixel includes: the pixel electrode layer 5, the common electrode layer 6 and the liquid crystal layer are arranged on the first insulating layer 7, the second insulating layer 8 covers the pixel electrode layer and the data signal line, the common electrode layer 6 is arranged on the second insulating layer 8, and the liquid crystal layer 9 is arranged on the common electrode layer;
the predetermined position 10 on the second insulating layer corresponding to the data signal line is provided with a common electrode layer including at least a part of the adjacent region 11 between the adjacent two pixels, the common electrode layer of the predetermined position being in contact with the common electrode layer of the adjacent two pixels.
In order to achieve higher light transmittance, the embodiment of the disclosure provides a novel high-transmittance pixel design, which further improves the horse-character pixel, and the embodiment of the disclosure exchanges the level positions of the existing pixel electrode layer and the common electrode layer and combines the pixel electrode to move upwards. Namely, the pixel electrode layer is prepared firstly, then the common electrode layer is prepared, and the pixel electrode is moved upwards to be above the first insulating layer, so that compared with a horse-shaped pixel, one insulating layer is reduced between the common electrode and the pixel electrode, the distance between the common electrode layer and the pixel electrode layer is reduced, the storage capacitance of the pixel electrode layer and the common electrode layer is increased, the influence of side parasitic capacitance is effectively reduced, and the risk of crosstalk is reduced.
According to the embodiment of the disclosure, the part of continuous public electrode layer is arranged on the second insulating layer corresponding to the data signal line, and the part of continuous public electrode layer can shield some unnecessary oblique coupling electric fields, so that the corresponding BM on the data signal line can be made narrower, the aperture ratio of the pixel is increased, and the light efficiency can be improved through special design of the public electrode layer.
The length of the part of the adjoining region covered by the common electrode layer shown in fig. 4 is not limited, but is preferably more than one third of the length of the pixel so that the pixel has a larger opening.
The embodiment of the disclosure can simulate based on an 8K pixel with 85 inches, so that the light effect of the pixel can be further improved by 9% on the basis of a horse-shaped pixel, compared with other designs of non-horse-shaped pixels, the transmittance is improved by almost 20%, and the design can be widely applied to high-resolution products such as 8K, 16K and the like.
In order to further improve the pixel of the horse character to obtain a larger pixel aperture ratio, a second embodiment of the present disclosure provides a display panel, which includes:
a plurality of pixel regions 1 and a plurality of pixel driving circuit regions 2, the pixel regions being alternately arranged adjacent to the pixel driving circuit regions;
the pixel region includes a plurality of pixels 3, and data signal lines 4 are provided between pixels of adjacent columns, the data signal lines being connected to respective pixel driving circuits;
the pixel includes: the pixel electrode layer 5, the common electrode layer 6 and the liquid crystal layer are arranged on the first insulating layer 7, the second insulating layer 8 covers the pixel electrode layer and the data signal line, the common electrode layer 6 is arranged on the second insulating layer 8, and the liquid crystal layer 9 is arranged on the common electrode layer;
a common electrode layer is arranged at a preset position 10 on the second insulating layer corresponding to the data signal line, the preset position at least comprises a part of adjacent area 11 between two adjacent pixels, and the common electrode layer at the preset position is connected with the common electrode layers of the two adjacent pixels;
the length of the partial adjacent region covered by the common electrode layer is equal to one half of the length of the pixel, which is the length of the pixel in the direction in which the data signal line is located.
In order to achieve higher light transmittance, the embodiment of the disclosure provides a novel high-transmittance pixel design, which is further improved for the pixel in the shape of a Chinese character 'ma', and the level positions of the existing pixel electrode layer and the common electrode layer are exchanged, namely, the pixel electrode layer is prepared first, then the common electrode layer is prepared, and compared with the pixel in the shape of the Chinese character 'ma', an insulating layer is arranged between the common electrode and the pixel electrode by moving the pixel electrode up to the upper part of the first insulating layer, the distance between the common electrode layer and the pixel electrode layer is reduced, the storage capacitance between the pixel electrode layer and the common electrode layer is increased, the influence of side parasitic capacitance is effectively reduced, and the risk of crosstalk is reduced.
According to the embodiment of the disclosure, the part of continuous public electrode layer is arranged on the second insulating layer corresponding to the data signal line, and the part of continuous public electrode layer can shield some unnecessary oblique coupling electric fields, so that the corresponding BM on the data signal line can be made narrower, the aperture ratio of the pixel is increased, and the light efficiency can be improved through special design of the public electrode layer.
In the embodiment of the present disclosure, with respect to the first embodiment, the length of the partial adjacent region is defined to be equal to one half of the pixel length, that is, the length of the partial adjacent region covered by the common electrode layer is the same as the length of the other adjacent regions not covered.
The embodiments of the present disclosure do not limit the location of the partially adjoining region covered by the common electrode layer, and one skilled in the art may adaptively select according to the need.
The embodiment of the disclosure can simulate based on an 8K pixel with 85 inches, so that the light effect of the pixel can be further improved by 9% on the basis of a horse-shaped pixel, compared with other designs of non-horse-shaped pixels, the transmittance is improved by almost 20%, and the design can be widely applied to high-resolution products such as 8K, 16K and the like.
In order to further improve the pixel of the horse character to obtain a larger pixel aperture ratio, a third embodiment of the present disclosure provides a display panel, which includes:
a plurality of pixel regions 1 and a plurality of pixel driving circuit regions 2, the pixel regions being alternately arranged adjacent to the pixel driving circuit regions;
the pixel region includes a plurality of pixels 3, and data signal lines 4 are provided between pixels of adjacent columns, the data signal lines being connected to respective pixel driving circuits;
the pixel includes: the pixel electrode layer 5, the common electrode layer 6 and the liquid crystal layer are arranged on the first insulating layer 7, the second insulating layer 8 covers the pixel electrode layer and the data signal line, the common electrode layer 6 is arranged on the second insulating layer 8, and the liquid crystal layer 9 is arranged on the common electrode layer;
a common electrode layer is arranged at a preset position 10 on the second insulating layer corresponding to the data signal line, the preset position at least comprises a part of adjacent area 11 between two adjacent pixels, and the common electrode layer at the preset position is connected with the common electrode layers of the two adjacent pixels;
the length of the part of the adjacent area covered by the common electrode layer is equal to one half of the length of the pixel, the part of the adjacent area covered by the common electrode layer and the part of the adjacent area not covered by the common electrode layer are in symmetrical relation with each other by a straight line where the midpoint of the pixel length is located, and the pixel length is the length of the pixel in the direction where the data signal line is located.
In order to achieve higher light transmittance, the embodiment of the disclosure provides a novel high-transmittance pixel design, which is further improved for the pixel in the shape of a Chinese character 'ma', and the level positions of the existing pixel electrode layer and the common electrode layer are exchanged, namely, the pixel electrode layer is prepared first, then the common electrode layer is prepared, and compared with the pixel in the shape of the Chinese character 'ma', an insulating layer is arranged between the common electrode and the pixel electrode by moving the pixel electrode up to the upper part of the first insulating layer, the distance between the common electrode layer and the pixel electrode layer is reduced, the storage capacitance between the pixel electrode layer and the common electrode layer is increased, the influence of side parasitic capacitance is effectively reduced, and the risk of crosstalk is reduced.
According to the embodiment of the disclosure, the part of continuous public electrode layer is arranged on the second insulating layer corresponding to the data signal line, and the part of continuous public electrode layer can shield some unnecessary oblique coupling electric fields, so that the corresponding BM on the data signal line can be made narrower, the aperture ratio of the pixel is increased, and the light efficiency can be improved through special design of the public electrode layer.
In the embodiment of the present disclosure, with respect to the second embodiment, the length and the position of the partial adjacent region are defined, which is equal to one half of the length of the pixel, and the position thereof is defined as the starting point of the other adjacent region which is not covered, from the end position of the pixel to the midpoint position of the length of the pixel, that is, the length of the partial adjacent region which is covered by the common electrode layer is the same as the length of the other adjacent region which is not covered.
The embodiments of the present disclosure do not limit the location of the partially adjoining region covered by the common electrode layer, and one skilled in the art may adaptively select according to the need.
The embodiment of the disclosure can simulate based on an 8K pixel with 85 inches, so that the light effect of the pixel can be further improved by 9% on the basis of a horse-shaped pixel, compared with other designs of non-horse-shaped pixels, the transmittance is improved by almost 20%, and the design can be widely applied to high-resolution products such as 8K, 16K and the like.
In order to make the biggest improvement on the pixel of the horse character to obtain the biggest pixel aperture ratio, a fourth embodiment of the present disclosure provides a display panel, the wiring schematic of which is shown in fig. 8, fig. 9 is a partially structured enlarged wiring diagram, and the display panel includes:
a plurality of pixel regions 1 and a plurality of pixel driving circuit regions 2, the pixel regions being alternately arranged adjacent to the pixel driving circuit regions;
the pixel region includes a plurality of pixels 3, and data signal lines 4 are provided between pixels of adjacent columns, the data signal lines being connected to respective pixel driving circuits;
the pixel includes: the pixel electrode layer 5, the common electrode layer 6 and the liquid crystal layer are arranged on the first insulating layer 7, the second insulating layer 8 covers the pixel electrode layer and the data signal line, the common electrode layer 6 is arranged on the second insulating layer 8, and the liquid crystal layer 9 is arranged on the common electrode layer;
a common electrode layer is arranged at a preset position on the second insulating layer corresponding to the data signal line, the preset position at least comprises a part of adjacent area between two adjacent pixels, and the common electrode layer at the preset position is connected with the common electrode layers of the two adjacent pixels;
the length of the part of adjacent area covered by the common electrode layer is equal to one half of the length of the pixel, the part of adjacent area covered by the common electrode layer and the part of adjacent area not covered by the common electrode layer are in symmetrical relation with each other along the straight line of the midpoint of the length of the pixel, and the adjacent parts of adjacent areas covered by the common electrode layer in the same row of pixel areas are arranged in a staggered mode, wherein the length of the pixel is the length of the pixel in the direction of the data signal line.
In order to achieve higher light transmittance, the embodiment of the disclosure provides a novel high-transmittance pixel design, which is further improved for the pixel in the shape of a Chinese character 'ma', and the level positions of the existing pixel electrode layer and the common electrode layer are exchanged, namely, the pixel electrode layer is prepared first, then the common electrode layer is prepared, and compared with the pixel in the shape of the Chinese character 'ma', an insulating layer is arranged between the common electrode and the pixel electrode by moving the pixel electrode up to the upper part of the first insulating layer, the distance between the common electrode layer and the pixel electrode layer is reduced, the storage capacitance between the pixel electrode layer and the common electrode layer is increased, the influence of side parasitic capacitance is effectively reduced, and the risk of crosstalk is reduced.
According to the embodiment of the disclosure, the part of continuous public electrode layer is arranged on the second insulating layer corresponding to the data signal line, and the part of continuous public electrode layer can shield some unnecessary oblique coupling electric fields, so that the corresponding BM on the data signal line can be made narrower, the aperture ratio of the pixel is increased, and the light efficiency can be improved through special design of the public electrode layer.
In the embodiment of the present disclosure, with respect to the third embodiment, the length and the position of the partial adjacent region are defined, which is equal to one half of the length of the pixel, and the position thereof is defined as the starting point of the other adjacent region which is not covered, from the end position of the pixel to the midpoint position of the length of the pixel, that is, the length of the partial adjacent region which is covered by the common electrode layer is the same as the length of the other adjacent region which is not covered; the positions of the partial adjacent areas in the embodiment of the present disclosure may be as shown in fig. 8, where the adjacent partial adjacent areas in the same row of pixel areas are not on the same straight line, so that the partial adjacent areas are arranged in a manner similar to an N-shape or a Z-shape, and the bight pixels are further improved maximally, so that BMs in the upper right corner and the lower left corner in fig. 1 are removed, and a light efficiency map as shown in fig. 10 is obtained.
The embodiment of the disclosure can simulate based on an 8K pixel with 85 inches, so that the light effect of the pixel can be further improved by 9% on the basis of a horse-shaped pixel, compared with other designs of non-horse-shaped pixels, the transmittance is improved by almost 20%, and the design can be widely applied to high-resolution products such as 8K, 16K and the like.
In order to make a larger improvement on the pixel of the horse character to obtain the maximum pixel aperture ratio, a fifth embodiment of the present disclosure provides a display panel, whose wiring schematic is as shown in fig. 11, in which the whole layer of the common electrode layer is laid, the display panel includes:
a plurality of pixel regions 1 and a plurality of pixel driving circuit regions 2, the pixel regions being alternately arranged adjacent to the pixel driving circuit regions;
the pixel region includes a plurality of pixels 3, and data signal lines 4 are provided between pixels of adjacent columns, the data signal lines being connected to respective pixel driving circuits;
the pixel includes: the pixel electrode layer 5, the common electrode layer 6 and the liquid crystal layer are arranged on the first insulating layer 7, the second insulating layer 8 covers the pixel electrode layer and the data signal line, the common electrode layer 6 is arranged on the second insulating layer 8, and the liquid crystal layer 9 is arranged on the common electrode layer;
a common electrode layer is arranged at a preset position 10 on the second insulating layer corresponding to the data signal line, the preset position at least comprises a part of adjacent area 11 between two adjacent pixels and a projection area corresponding to the pixel driving circuit area, and the common electrode layer at the preset position is connected with the common electrode layer of the two adjacent pixels;
the length of the part of adjacent area covered by the common electrode layer is equal to one half of the length of the pixel, the part of adjacent area covered by the common electrode layer and the part of adjacent area not covered by the common electrode layer are in symmetrical relation with each other along the straight line of the midpoint of the length of the pixel, and the adjacent parts of adjacent areas covered by the common electrode layer in the same row of pixel areas are arranged in a staggered mode, wherein the length of the pixel is the length of the pixel in the direction of the data signal line.
In order to achieve higher light transmittance, the embodiment of the disclosure provides a novel high-transmittance pixel design, which is further improved for the pixel in the shape of a Chinese character 'ma', and the level positions of the existing pixel electrode layer and the common electrode layer are exchanged, namely, the pixel electrode layer is prepared first, then the common electrode layer is prepared, and compared with the pixel in the shape of the Chinese character 'ma', an insulating layer is arranged between the common electrode and the pixel electrode by moving the pixel electrode up to the upper part of the first insulating layer, the distance between the common electrode layer and the pixel electrode layer is reduced, the storage capacitance between the pixel electrode layer and the common electrode layer is increased, the influence of side parasitic capacitance is effectively reduced, and the risk of crosstalk is reduced.
According to the embodiment of the disclosure, the part of continuous public electrode layer is arranged on the second insulating layer corresponding to the data signal line, and the part of continuous public electrode layer can shield some unnecessary oblique coupling electric fields, so that the corresponding BM on the data signal line can be made narrower, the aperture ratio of the pixel is increased, and the light efficiency can be improved through special design of the public electrode layer.
In the embodiment of the present disclosure, with respect to the fourth embodiment, the length and the position of the partial adjacent region are defined, which is equal to one half of the length of the pixel, and the position thereof is defined as the starting point of the other adjacent region which is not covered, from the end position of the pixel to the midpoint position of the length of the pixel, that is, the length of the partial adjacent region which is covered by the common electrode layer is the same as the length of the other adjacent region which is not covered; in the embodiment of the disclosure, the positions of the partial adjacent areas in the same row of pixel areas are not on the same straight line, so that the partial adjacent areas are arranged like an N shape or a Z shape, and further, the bight pixels are improved to remove the BM at the upper right corner and the lower left corner in fig. 1, and the aperture ratio is maximized.
The embodiment of the disclosure can simulate based on an 8K pixel with 85 inches, so that the light effect of the pixel can be further improved by 9% on the basis of a horse-shaped pixel, compared with other designs of non-horse-shaped pixels, the transmittance is improved by almost 20%, and the design can be widely applied to high-resolution products such as 8K, 16K and the like.
When implemented, the width of the data signal line in the above embodiments of the present disclosure is smaller than the width of the black matrix, and the width of the common electrode layer of the partial adjacent region is larger than the width of the black matrix; the liquid crystal layers are all negative liquid crystals, and the dielectric constant of the negative liquid crystals in the short axis direction is larger than that in the long axis direction.
The embodiment of the disclosure provides a novel high-transmittance pixel design, based on IADS pixels, namely, a 2ITO layer is set as a COM electrode, a 1ITO layer is set as a pixel electrode, and meanwhile, the 1ITO layer is positioned above the GI layer, so that compared with an ADS structure, the thickness of an insulating layer is reduced between IADS structure electrodes, the capacitance between the electrodes is larger, the capability of resisting parasitic capacitance coupling is better, and the risk of cross talk is reduced.
The high-transmittance pixel COM electrode and the pixel electrode provided by the embodiment of the disclosure have special designs. The COM electrode connection is in zigzag periodic connection, and a part of area is covered on the DATA line in a unit of one pixel, and part of area is exposed, for example, the ratio of the covered part to the exposed part is 1:1. The common electrode layer covered on the DATA line simultaneously serves to connect the same row of COM lines, and the connection areas on the same row are also arranged in a Z-shaped period. By the zigzag connection arrangement of the transverse coverage area and the vertical coverage area, the uniformity of the COM voltage in the plane can be maintained.
According to the special form design of the COM electrode of the high-transmittance pixel, compared with a full-coverage mode of HADS, the mode that the COM electrode partially covers the DATA line is achieved, loading is effectively reduced, and the high-transmittance pixel has higher charging rate than that of HADS.
Compared with the common ADS pixels, the pixel transmittance of the embodiment of the disclosure is improved mainly from two aspects, on one hand, in the unconnected areas among the pixels, the transmittance improvement is obtained through 'open design'; on the other hand, in the inter-pixel communication region, the pixel electrode and DATA distance can be reduced and the pixel light emitting region can be increased due to the lower cross talk risk of the IADS pixel architecture. Meanwhile, after the COM electrode covers the Data line, the COM electrode has a shielding effect on an electric field between the Data line and the pixel electrode, and BM can be correspondingly contracted to improve light efficiency.
Preferably, the high-transmittance pixel proposal of the embodiment of the disclosure is matched with negative liquid crystal, so that the risk of cross talk can be further reduced and the light efficiency can be improved. The dielectric constant of the negative liquid crystal in the short axis direction is larger than that in the long axis direction.
The COM electrode connection of the embodiment of the present disclosure is a zigzag periodic connection, and in one pixel unit, there is a partial area coverage on the DATA line, and a partial area is exposed. The rows are connected through the periodic vertical VCOM, and because the overlapping area of the Gate and the common electrode layer is small, the higher charging rate level can be kept on the basis of improving the transmittance level. The array substrate process flow sequentially comprises Gate, active, pixel electrode layer, S/D, PVX and common electrode layer. Particularly, the Loading can be further reduced by adopting an organic film process, the charging rate is improved, and the corresponding process flow is Gate- & gt Active- & gt S/D- & gt ORG- & gt pixel electrode layer- & gt PVX- & gt common electrode layer. The present embodiment can be derived, and the uniformity of VCOM can be adjusted by the ratio and position of the covered and uncovered portions on the DATA line, for example, the covered area and the uncovered area on one pixel are subjected to the periodic arrangement like "covered/uncovered/covered …" or "uncovered/covered/uncovered …", which are all considered as the same as the embodiments of the present disclosure.
For the whole surface laid public electrode layer, the whole surface public electrode layer coverage connection is adopted between the rows, and because the public electrode layer coverage above Gate is adopted, the electric field between the Gate and the pixel electrode is shielded, so that the Gate side BM can be further narrowed, the transmittance level can be further improved by adopting the scheme, but the charging rate difficulty is increased due to the increase of Loading. In order to improve the charge rate problem, the present embodiment prefers the ORG scheme; in addition, the embodiment can be derived, for example, a hollowed-out design is properly adopted on the common electrode layer above Gate, so that the Loading can be properly reduced while the peripheral shielding effect is ensured, and the proper charging rate and transmittance can be obtained.
The embodiment of the disclosure further provides an electronic device, which includes the display panel in the above embodiment of the disclosure, and the structure of the display panel is not described herein.
Furthermore, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., of the various embodiments across schemes), adaptations or alterations based on the present disclosure. Elements in the claims are to be construed broadly based on the language employed in the claims and are not limited to examples described in the present specification or during the practice of the present application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more aspects thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above detailed description, various features may be grouped together to streamline the disclosure. This is not to be interpreted as an intention that the disclosed features not being claimed are essential to any claim. Rather, the disclosed subject matter may include less than all of the features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with one another in various combinations or permutations. The scope of the disclosure should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
While various embodiments of the present disclosure have been described in detail, the present disclosure is not limited to these specific embodiments, and various modifications and embodiments can be made by those skilled in the art on the basis of the concepts of the present disclosure, and these modifications and modifications should be within the scope of the present disclosure as claimed.
Claims (10)
1. A display panel, comprising:
a plurality of pixel regions and a plurality of pixel driving circuit regions, the pixel regions being alternately disposed adjacent to the pixel driving circuit regions;
the pixel area comprises a plurality of pixels, data signal lines are arranged between pixels in adjacent columns, and the data signal lines are connected with the pixel driving circuits;
the pixel includes: the pixel electrode layer and the data signal line are arranged on the first insulating layer, the second insulating layer covers the pixel electrode layer and the data signal line, the common electrode layer is arranged on the second insulating layer, and the liquid crystal layer is arranged on the common electrode layer;
and a common electrode layer is arranged at a preset position on the second insulating layer corresponding to the data signal line, the preset position at least comprises a part of adjacent area between two adjacent pixels, and the common electrode layer at the preset position is connected with the common electrode layers of the two adjacent pixels.
2. The display panel of claim 1, wherein,
the length of the partial adjoining region covered by the common electrode layer is greater than one third of the length of the pixel.
3. The display panel of claim 2, wherein,
the length of the part of the adjacent area covered by the common electrode layer is equal to one half of the length of the pixel, and the length of the pixel is the length of the pixel in the direction of the data signal line.
4. The display panel of claim 3, wherein,
the part of adjacent area covered by the common electrode layer and the part of adjacent area not covered are in symmetrical relation with each other along the straight line where the midpoint of the pixel length is located, and the pixel length is the length of the pixel in the direction where the data signal line is located.
5. The display panel of claim 4, wherein,
the adjacent partial adjacent areas covered by the common electrode layer in the pixel areas of the same row are arranged in a staggered manner.
6. The display panel of claim 5, wherein,
the width of the data signal line is smaller than that of the black matrix; the width of the common electrode layer of the partial adjacent region is greater than the width of the black matrix.
7. The display panel according to any one of claims 1 to 6, wherein,
the predetermined position further includes a projection region corresponding to the pixel driving circuit region.
8. The display panel according to any one of claims 1 to 6, wherein,
the liquid crystal layer is negative liquid crystal.
9. The display panel of claim 8, wherein,
the dielectric constant of the negative liquid crystal in the short axis direction is larger than that in the long axis direction.
10. An electronic device, comprising: the display panel of any one of claims 1 to 9.
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