CN111722442B - Pixel structure, pixel unit and display panel - Google Patents
Pixel structure, pixel unit and display panel Download PDFInfo
- Publication number
- CN111722442B CN111722442B CN201910223985.7A CN201910223985A CN111722442B CN 111722442 B CN111722442 B CN 111722442B CN 201910223985 A CN201910223985 A CN 201910223985A CN 111722442 B CN111722442 B CN 111722442B
- Authority
- CN
- China
- Prior art keywords
- electrode
- pixel structure
- frame
- equal
- slits
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
-
- 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 pixel structure, a pixel unit and a display panel, wherein the pixel structure comprises a frame electrode and four electrode areas arranged in the frame electrode, the four electrode areas are distributed in a cross shape, and the width of the frame electrode is larger than or equal to zero. According to the invention, the ITO electrodes are arranged into four electrode areas, the four electrode areas are distributed in a cross shape, each electrode area comprises a plurality of branch electrodes, the included angle between each branch electrode and the horizontal central line of the frame electrode is not equal to 90 degrees, the branch electrodes in two adjacent electrode areas are not parallel to each other, and a slit is arranged between two adjacent branch electrodes in each electrode area, so that the penetration rate of the high-resolution liquid crystal display panel prepared by using the UV2A technology can be improved, and the application range of the UV2A technology is enlarged.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a pixel structure, a pixel unit and a display panel.
Background
With the development of Display technology, flat panel Display devices such as Liquid Crystal Displays (LCDs) have advantages of high image quality, power saving, thin body, and wide application range, and are therefore widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers.
A conventional Liquid Crystal display generally includes a Color Filter (CF) Substrate, a Thin Film Transistor Array (TFT) Substrate, and a Liquid Crystal Layer (LCL) filled between the CF Substrate and the TFT Substrate. In the process of manufacturing the lcd, the liquid crystal molecules of the liquid crystal layer are aligned in a specific direction and angle by an Alignment technique, and the common Alignment technique includes a rubbing Alignment method and an ultraviolet Alignment method (Ultra Violet, abbreviated as UV), and an ultraviolet Vertical Alignment (Ultra Violet Vertical Alignment, abbreviated as UV 2A) in UV can realize the state that all the liquid crystal molecules are tilted to the design direction by an Alignment film, so that the liquid crystal Alignment method is widely applied to the liquid crystal display.
At present, for a display panel with lower resolution, the transmittance of the display panel can be significantly improved by the UV2A technology compared with other alignment technologies, but when the resolution is improved, the transmittance of the display panel is significantly reduced by the UV2A technology, thereby limiting the application of the UV2A technology in the field of liquid crystal display panels, for example, please refer to fig. 1 and fig. 2, and when the other conditions are the same, for a 55 ″ liquid crystal display panel prepared by using the UV2A technology, when the resolution is increased from 4K to 8K, the transmittance of the 55 ″ liquid crystal display panel is significantly reduced.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a pixel structure, a pixel unit and a display panel. The technical problem to be solved by the invention is realized by the following technical scheme:
a pixel structure comprises a frame electrode and four electrode areas arranged in the frame electrode, wherein the four electrode areas are distributed in a cross shape, the width of the frame electrode is more than or equal to zero,
every the electrode zone all includes a plurality of branch road electrodes, every first end to the second end of branch road electrode certainly the frame electrode to frame electrode inside extends, is same in the electrode zone branch road electrode parallel to each other's interval sets up, every branch road electrode with the contained angle of the horizontal central line of frame electrode all is not equal to 90 degrees, adjacent two branch road electrodes in the electrode zone are not parallel to each other, are in diagonal two branch road electrode in the electrode zone is parallel to each other, and every be provided with a slit between two adjacent branch road electrodes in the electrode zone.
In one embodiment of the invention, the slits in two electrode regions adjacent to each other along the first direction are arranged in a one-to-one correspondence manner with a first distance, wherein the first distance is smaller than or equal to a set side length of the slits.
In one embodiment of the invention, the slits in two electrode regions adjacent to each other along the second direction are arranged in a one-to-one correspondence manner with a second distance, wherein the second distance is smaller than or equal to a set side length of the slits.
In one embodiment of the present invention, the display device further includes a cross-shaped electrode, the cross-shaped electrode divides the pixel electrode into four first partitions, and the four electrode areas are respectively distributed in the four first partitions.
In an embodiment of the present invention, the liquid crystal display device further includes a word-shaped electrode, the word-shaped electrode divides the pixel electrode into two second partitions, each of the second partitions is provided with two electrode regions, the slits of the two electrode regions located in the same second partition each include a plurality of first sub-slits, and the first sub-slits extend from first ends of the plurality of first sub-slits to a center line of the border electrode perpendicular to the word-shaped electrode, so that the first sub-slits located in one of the electrode regions in the same second partition are connected to the first sub-slits in the other electrode region in a one-to-one correspondence manner.
In one embodiment of the present invention, the electrode regions are rectangular, and the first side length and the second side length of two adjacent electrode regions are different.
In one embodiment of the present invention, a subtraction result of a first side length of two adjacent electrode regions is less than or equal to 10 μm and greater than or equal to 0, and a subtraction result of a second side length of two adjacent electrode regions is less than or equal to 10 μm and greater than or equal to 0.
In one embodiment of the invention, included angles between the branch electrodes in the four electrode regions and a horizontal center line of the frame electrode are respectively a first angle, a second angle, a third angle and a fourth angle in sequence, wherein,
the value range of the first angle is 35-55 degrees, the value range of the second angle is 125-145 degrees, the value range of the third angle is 215-235 degrees, and the value range of the fourth angle is 305-325 degrees.
An embodiment of the present invention further provides a pixel unit, including:
data lines, scanning lines;
a switching member electrically connecting the data line and the scan line;
the pixel structure is electrically connected with the switch piece;
wherein the pixel structure comprises a frame electrode and four electrode areas arranged in the frame electrode, the four electrode areas are distributed in a cross shape, the width of the frame electrode is more than or equal to zero, wherein,
every the electrode zone all includes a plurality of branch road electrodes, every first end to the second end of branch road electrode certainly the frame electrode to frame electrode inside extends, is same in the electrode zone branch road electrode parallel to each other's interval sets up, every branch road electrode with the contained angle of the horizontal central line of frame electrode all is not equal to 90 degrees, adjacent two branch road electrodes in the electrode zone are not parallel to each other, are in diagonal two branch road electrode in the electrode zone is parallel to each other, and every be provided with a slit between two adjacent branch road electrodes in the electrode zone.
An embodiment of the present invention further provides a display panel, including:
a first substrate;
a second substrate located opposite to the first substrate;
the pixel units of the embodiments are arranged between the first substrate and the second substrate;
a liquid crystal material between the first substrate and the second substrate.
The invention has the beneficial effects that:
according to the invention, the ITO electrodes are arranged into four electrode areas, the four electrode areas are distributed in a cross shape, each electrode area comprises a plurality of branch electrodes, the included angle between each branch electrode and the horizontal central line of the frame electrode is not equal to 90 degrees, the branch electrodes in two adjacent electrode areas are not parallel to each other, and a slit is arranged between two adjacent branch electrodes in each electrode area, so that the penetration rate of the high-resolution liquid crystal display panel prepared by using the UV2A technology can be improved, and the application range of the UV2A technology is enlarged.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic diagram of a simulation of bright liquid crystal patterns of a 55 ″ LCD panel with a resolution of 4K, prepared by UV2A technology according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a simulation of a bright liquid crystal stripe of a 55 ″ LCD panel with a resolution of 8K prepared by UV2A technology according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a pixel structure according to an embodiment of the invention;
FIG. 4 is a schematic diagram of another pixel structure provided by an embodiment of the invention;
FIG. 5 is a schematic diagram of another pixel structure according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of another pixel structure provided by an embodiment of the invention;
FIG. 7 is a schematic diagram of another pixel structure provided by an embodiment of the invention;
FIG. 8 is a diagram illustrating another pixel structure according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of another pixel structure provided by an embodiment of the invention;
FIG. 10 is a diagram illustrating another pixel structure according to an embodiment of the present invention;
FIG. 11 is a diagram illustrating the results of the transmittance variation with the resolution for the pixel structures of the present embodiment and the conventional design according to an embodiment of the present invention;
FIG. 12 is a diagram illustrating a transmittance simulation result of a liquid crystal display panel simulated by using the pixel structure of FIG. 3 according to an embodiment of the present invention;
FIG. 13 is a diagram illustrating a transmittance simulation result of a liquid crystal display panel simulated by a pixel structure of a conventional design according to an embodiment of the present invention;
FIG. 14 is a graph illustrating the difference between the transmittance of the LCD panel of FIG. 12 and the transmittance of the LCD panel of FIG. 13 according to an embodiment of the present invention;
FIG. 15 is a diagram illustrating transmittance simulation results of an LCD panel according to different pixel structures;
fig. 16 is a schematic diagram of a pixel unit according to an embodiment of the invention;
fig. 17 is a schematic view of a display panel according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
Example one
Referring to fig. 3, fig. 3 is a schematic diagram of a pixel structure according to an embodiment of the invention. An embodiment of the present invention provides a pixel structure, where the pixel structure includes:
a frame electrode 101 and four electrode areas arranged in the frame electrode, wherein the four electrode areas are distributed in a cross shape, the width of the frame electrode 101 is more than or equal to zero,
each electrode area comprises a plurality of branch electrodes 102, a first end 1021 to a second end 1022 of each branch electrode 102 extends from the frame electrode 101 to the inside of the frame electrode 101, the branch electrodes 102 in the same electrode area are arranged in parallel at intervals, an included angle between each branch electrode 102 and a horizontal center line of the frame electrode 101 is not equal to 90 degrees, the branch electrodes 102 in two adjacent electrode areas are not parallel to each other, and a slit 103 is arranged between two adjacent branch electrodes 102 in each electrode area.
It should be understood that the horizontal center line described in the present embodiment is relative to fig. 1, and in practical application, when it rotates to become a vertical center line, it should not be understood as different from the present embodiment.
In this embodiment, the frame electrode is a rectangular frame electrode, and the width of the frame electrode may be greater than or equal to zero, that is, the frame electrode may be disposed outside the four electrode regions according to an actual design, or the frame electrode may not be disposed. The frame electrode is made of the same material as the branch electrode, for example, ITO.
In this embodiment, the electrode regions are rectangular, each branch electrode 102 in the electrode region is strip-shaped, the branch electrode 102 in each electrode region forms a fixed included angle with the horizontal direction of the pixel structure, and is not parallel to or perpendicular to the horizontal direction of the pixel structure, a slit 103 is formed between gaps between every two adjacent branch electrodes 102 in the same electrode region, and a first end 1031 to a second end 1032 of the slit 103 extend from the frame electrode 101 to the inside of the frame electrode 101.
In an embodiment, please refer to fig. 1 again, the four electrode regions are respectively denoted as A1 partition, A2 partition, A3 partition, and A4 partition, where the A1 partition is adjacent to the A2 partition and the A3 partition, and the A1 partition, the A2 partition, the A3 partition, and the A4 partition are all rectangular, if a frame electrode is disposed in the pixel structure, for any one of the four partitions, the branch electrode 102 includes a portion of the first end 1021 of the branch electrode and is connected to the frame electrode 101, and for any one of the four electrode regions, the inclination directions of all the branch electrodes 102 in the electrode region are the same, that is, two adjacent branch electrodes 102 in any one of the electrode regions are parallel to each other.
Taking the electrode area as the A1 partition as an example, the relative position of the A1 partition is located at the upper left of the pixel structure, and the inclination direction of the branch electrode in the partition is also inclined toward the upper left.
In the present embodiment, the branch electrodes 102 in the adjacent two electrode regions are not parallel to each other.
That is, taking the A2 division as an example, the relative position of the A2 division is located at the upper right of the pixel structure, and the inclination direction of the branch electrode in the division is also inclined towards the upper right; taking the A3 partition as an example, the relative position of the A3 partition is located at the lower left of the pixel structure, and the inclination direction of the branch electrode in the partition is also inclined towards the lower left, taking the A4 partition as an example, the relative position of the A4 partition is located at the lower right of the pixel structure, and the inclination direction of the branch electrode in the partition is also inclined towards the lower right; that is, the orientation of any one of the branch electrodes in the A1 zone is different from that of any one of the branch electrodes in the A2 zone, that is, the branch electrodes in the A1 zone are not parallel to the branch electrodes in the A2 zone, and likewise, the branch electrodes in the A1 zone are not parallel to the branch electrodes in the A3 zone. The arrangement of the electrodes in the above direction can improve the problem of display color shift after voltage is applied.
To more clearly illustrate the above arrangement, please refer to fig. 3, the width D1 of each branch electrode 102 is equal (the width D1 is a vertical distance between two parallel sides of the branch electrode 102), and the number of branch electrodes 102 disposed in the four electrode regions is equal, so that the width D2 of each slit 103 is equal (the width D2 is a vertical distance between two parallel sides of the slit 103), and the number of slits 103 in the four electrode regions is equal.
Preferably, the width D2 of the slit 103 is 6 μm or less and greater than 0.
Preferably, the sum of the areas of all slits 103 of the pixel structure accounts for 25-75% of the area of the entire pixel structure.
In an embodiment of the present invention, the slits in two electrode regions adjacent to each other along the first direction are arranged in a one-to-one correspondence manner with a first distance, where the first distance is greater than or equal to 0 and less than or equal to a set side length of the slit, where the set side length is a side length D3 of the slit corresponding to an intersection of the second end of the slit 103 and the center line of the frame electrode 101.
The first direction of the present embodiment may be a horizontal direction with respect to the pixel structure, or may be a vertical direction with respect to the pixel structure.
Further, the slits in the two electrode regions adjacent to each other in the first direction are arranged in a one-to-one correspondence manner with a first distance, when the first distance is zero, the one-to-one correspondence slits in the two electrode regions adjacent to each other in the first direction are not staggered, and the branch electrodes 102 and the slits 103 in the two adjacent electrode regions are symmetrical to each other.
That is, referring to fig. 4, the first direction is a horizontal direction, taking a partition A1 and a partition A2 as an example, a slit M1, a slit M2, a slit M3, a slit M4, and a slit M5 are disposed in the partition A1, and a slit N1, a slit N2, a slit N3, a slit N4, and a slit N5 are disposed in the partition A2, wherein the slit M1 and the slit N1 are disposed correspondingly, and the positions of the second end of the slit M1, the second end of the slit N1, and the positions of the second end extending to the vertical center line of the frame electrode 101 are the same, and there is no offset.
Further, the slits in the two electrode regions adjacent to each other in the first direction are arranged in a one-to-one correspondence manner with a first distance, and when the first distance is greater than zero and less than a set side length (the first distance is denoted as L), the slits in the two electrode regions adjacent to each other in the first direction are staggered with each other according to the size of the first distance.
That is, referring to fig. 5, the first direction is a horizontal direction, taking a partition A1 and a partition A2 as an example, a slit M6, a slit M7, a slit M8, a slit M9, and a slit M10 are disposed in the partition A1, and a slit N6, a slit N7, a slit N8, a slit N9, and a slit N10 are disposed in the partition A2, wherein the slit M6 and the slit N6 are disposed correspondingly, and positions of the second end of the slit M1, the slit N1, and the second end extending to the vertical center line of the frame electrode 101 are staggered with each other according to the first distance L.
In this embodiment, the slits in the two electrode regions adjacent to each other in the first direction are staggered from each other by the first distance, so that the transmittance of the high-resolution liquid crystal display panel prepared by using the UV2A technology can be further improved, and the UV2A technology is suitable for the high-resolution liquid crystal display panel.
On the basis of the foregoing embodiment, the slits in two electrode regions adjacent to each other in the second direction may be arranged in a one-to-one correspondence manner with a second distance, where the second distance is greater than or equal to 0 and less than or equal to a set side length of the slit.
That is, the pixel structures may be disposed in a one-to-one correspondence manner with a first distance between the slits in two adjacent electrode regions along the first direction, and may also be disposed in a one-to-one correspondence manner with a second distance between the slits in two adjacent electrode regions along the second direction, where the second direction of this embodiment may be a horizontal direction relative to the pixel structure or a vertical direction relative to the pixel structure, and the first direction and the second direction are two directions perpendicular to each other, that is, when the first direction is the horizontal direction relative to the pixel structure, the second direction is the vertical direction of the pixel structure, and when the first direction is the vertical direction relative to the pixel structure, the second direction is the horizontal direction of the pixel structure.
Further, the slits in the two electrode regions adjacent to each other in the second direction are arranged in a one-to-one correspondence manner with a second distance, when the second distance is zero, the one-to-one correspondence slits in the two electrode regions adjacent to each other in the second direction are not staggered, and the branch electrodes 102 and the slits 103 in the two adjacent electrode regions are symmetrical to each other.
Furthermore, the slits in the two electrode regions adjacent to each other in the second direction are arranged in a one-to-one correspondence manner with a second distance, and when the second distance is greater than zero and less than the set side length, the slits in the two electrode regions adjacent to each other in the second direction are staggered with each other according to the second distance.
The first distance and the second distance can be equal or unequal, and can be zero at the same time or not, and can be non-zero, and the skilled person in the art can carry out the value taking on the first distance and the second distance according to the actual situation.
When the first distance and the second distance are not zero, the slits in one-to-one correspondence between two electrode areas adjacent to each other along the first direction are staggered with each other according to the size of the first distance, and the slits in one-to-one correspondence between two electrode areas adjacent to each other along the second direction are staggered with each other according to the size of the second distance, namely, the slits in one-to-one correspondence between the horizontal direction and the vertical direction are staggered with each other, so that the penetration rate of the high-resolution liquid crystal display panel prepared by using the UV2A technology can be further improved, and the UV2A technology is suitable for the high-resolution liquid crystal display panel.
On the basis of the above embodiments, the pixel structure of this embodiment may further include a trunk electrode, where the trunk electrode includes a cross-shaped electrode or a line-shaped electrode.
When the main electrode is a cross-shaped electrode 104, the cross-shaped electrode 104 divides the pixel electrode into four first partitions, and the four electrode areas are respectively distributed in the four first partitions.
With reference to fig. 3, the cross-shaped electrode 104 is a strip, the A1 partition, the A2 partition, the A3 partition, and the A4 partition are respectively distributed in four first partitions, the branch electrodes 102 each include a part of branch electrodes, a first end of each branch electrode is connected to the border electrode 101, a second end of each branch electrode is connected to the cross-shaped electrode 104, a slit 103 is formed between a gap between every two adjacent branch electrodes 102 in each first partition, and a first end to a second end of the slit 103 extend from the border electrode 101 to the cross-shaped electrode 104.
For the convenience of preparation, the materials of the frame electrode 101, the branch electrode 102 and the cross-shaped electrode 104 are the same, and a pixel structure with the whole surface being an electrode may be prepared first, and then the electrode material at the corresponding position on the pixel structure is cut to form a slit.
When the slits in the two electrode regions adjacent to each other in the first direction are staggered with each other according to the first distance, and the slits in the two electrode regions adjacent to each other in the second direction are staggered with each other according to the second distance, that is, when the slits in the horizontal direction and/or the vertical direction are staggered with each other, the pixel structure is provided with the cross-shaped electrode 104, so that the transmittance of the high-resolution liquid crystal display panel prepared by using the UV2A technology can be further improved, and the UV2A technology is suitable for the high-resolution liquid crystal display panel.
When the trunk electrode is a straight electrode 105, the straight electrode 105 divides the pixel electrode into two second partitions, each second partition is provided with two electrode regions, the slits 103 of the two electrode regions in the same second partition each include a plurality of first sub-slits, and one end of each of the plurality of first sub-slits extends to a center line of the border electrode perpendicular to the straight electrode, so that the first sub-slits in one of the electrode regions in the same second partition are connected with the first sub-slits in the other electrode region in a one-to-one correspondence manner.
The linear electrode 105 is a strip electrode, and may be a linear electrode in a horizontal direction or a linear electrode in a vertical direction with respect to the pixel structure.
That is, referring to fig. 6 and 7, the trunk electrodes shown in fig. 6 and 7 are all linear electrodes. Taking fig. 6 as an example, the linear electrode 105 is a linear electrode in the horizontal direction, the A1 partition and the A2 partition are respectively located in the same second partition, the A3 partition and the A4 partition are respectively located in another second partition, the slit 103 of each electrode area includes a plurality of first sub-slits and second sub-slits, wherein a first end of each of the first sub-slits and the second sub-slits is connected to the frame electrode 101, a second end of each of the first sub-slits is connected to the first sub-slits located in the same second partition in a one-to-one correspondence manner, and a second end of each of the second sub-slits is connected to the linear electrode 105.
For example, taking the A1 partition and the A2 partition as an example, the A1 partition is provided with first sub-slits M11, M12, M13, and M14, and the A2 partition is provided with first sub-slits N11, N12, N13, and N14, where the first sub-slit M11 is connected to the first sub-slit N11, the first sub-slit M12 is connected to the first sub-slit N12, the first sub-slit M13 is connected to the first sub-slit N13, and the first sub-slit M14 is connected to the first sub-slit N14.
For the convenience of preparation, the materials of the frame electrode 101, the branch electrode 102 and the in-line electrode 105 are the same, and a pixel structure with the whole surface being an electrode may be prepared first, and then the electrode material at the corresponding position is cut on the pixel structure to form a slit.
When the slits corresponding to one another in two electrode regions adjacent to each other in the first direction are staggered with each other according to the first distance, and simultaneously the slits corresponding to one another in two electrode regions adjacent to each other in the second direction are staggered with each other according to the second distance, that is, when the slits corresponding to one another in the horizontal direction and/or the vertical direction are staggered with each other, the linear electrodes 105 are arranged on the pixel structure, and simultaneously, the first end of the first sub-slit in the same partition is correspondingly connected with the first sub-slit in another electrode region in the same second partition, so that the transmittance of the high-resolution liquid crystal display panel prepared by using the UV2A technology can be further improved, and the UV2A technology is suitable for the high-resolution liquid crystal display panel.
On the basis of the foregoing embodiment, the electrode regions of this embodiment are rectangular, and the first side length and the second side length of two adjacent electrode regions are different from each other, where the electrode regions are rectangular, and the first side length and the second side length are two mutually perpendicular sides of the rectangular shape. Each electrode area is positioned in one subarea of the frame electrode, and the first side length and the second side length of the two adjacent electrode areas can be different by adjusting the width of the frame electrode corresponding to each electrode area.
That is, referring to fig. 8, 9 and 10, taking the adjacent A1 partition and A2 partition as an example, if the first side length of the A1 partition is S1, the second side length is S2, and the first side length of the A2 partition is S3, the second side length is S4, then S1 ≠ S3, and S2 ≠ S4.
According to the invention, the first side length and the second side length of the two adjacent electrode areas are set to be unequal, so that the penetration rate of the high-resolution liquid crystal display panel prepared by using the UV2A technology is higher, and the UV2A technology is suitable for the high-resolution liquid crystal display panel.
Preferably, the result of subtracting the first side lengths of two adjacent electrode areas is less than or equal to 10 μm and greater than or equal to 0, and the result of subtracting the second side lengths of two adjacent electrode areas is less than or equal to 10 μm and greater than or equal to 0.
On the basis of the above embodiment, the included angles between the branch electrodes in the four electrode regions and the horizontal center line of the frame electrode are respectively a first angle, a second angle, a third angle and a fourth angle in turn, wherein,
the value range of the first angle is 35-55 degrees, the value range of the second angle is 125-145 degrees, the value range of the third angle is 215-235 degrees, and the value range of the fourth angle is 305-325 degrees.
On the basis of the implementation, the embodiment of the invention is matched with a mode that the included angles of the horizontal central lines of the branch electrodes and the frame electrodes in the four electrode areas are respectively the first angle, the second angle, the third angle and the fourth angle in sequence, so that the penetration rate of the high-resolution liquid crystal display panel prepared by using the UV2A technology can be higher effectively.
Referring to fig. 11, the abscissa represents a resolution (unit is 85 PPI), the ordinate represents a transmittance, the entire surface of the conventional design is an ITO electrode, and when the resolution of the conventional design is lower than 85PPI, the transmittance is higher than that of the pixel structure of the embodiment, and when the resolution exceeds 85PPI, the transmittance of the conventional design is significantly reduced and is lower than that of the pixel structure of the embodiment, so that when the resolution exceeds 85PPI, the xiao Su structure of the embodiment can more effectively improve the transmittance of the liquid crystal display panel.
Please refer to fig. 3, 12, 13 and 14, wherein fig. 12 is a schematic diagram of a transmittance simulation result of the liquid crystal display panel simulated by using the pixel structure of fig. 3, fig. 13 is a schematic diagram of a transmittance simulation result of the liquid crystal display panel simulated by using a pixel structure of a conventional design, fig. 14 is a schematic diagram of a difference between the transmittance of the liquid crystal display panel of fig. 12 and the transmittance of the liquid crystal display panel of fig. 13, the resolutions of the liquid crystal display panels of fig. 12 and 13 are both 160PPI, and the Pretilt Angle (i.e., the included Angle between the liquid crystal molecules and the horizontal plane of the display panel) of the liquid crystal is 89 degrees, as can be seen from fig. 13, there are regions with increased transmittance and some regions with decreased transmittance, so if the transmittance of the liquid crystal display panel is to be increased, the gain of the region with increased transmittance in fig. 13 is greater than that of the region with decreased transmittance, therefore, for the liquid crystal display panel with higher resolution, the transmittance of the liquid crystal display panel can be increased by using the pixel structure of the present embodiment.
Referring to fig. 15, a first graph in the first row of fig. 15 is a graph of transmittance simulation results of the pixel structure of the present embodiment with a resolution of 160PPI and a pretilt angle of 89 degrees, which is denoted as X1, a second graph in the first row of fig. 15 is a graph of transmittance simulation results of the pixel structure of the present embodiment with a resolution of 160PPI and a pretilt angle of 88 degrees, which is denoted as X2, a third graph in the first row of fig. 15 is a graph of transmittance simulation results of the pixel structure of the present embodiment with a resolution of 160PPI and a pretilt angle of 87 degrees, which is denoted as X3, a first graph in the second row of fig. 15 is a graph of transmittance simulation results of the pixel structure of the conventional design with a resolution of 160PPI and a pretilt angle of 89 degrees, which is denoted as X4, the second graph in the second row of fig. 15 is a graph of the transmittance simulation result using the pixel structure of the conventional design, having a resolution of 160PPI and a pretilt angle of 88 degrees, which is denoted as X5, the third graph in the first row of fig. 15 is a graph of the transmittance simulation result using the pixel structure of the conventional design, having a resolution of 160PPI and a pretilt angle of 87 degrees, which is denoted as X6, and by comparing X1 with X4, it can be found that the transmittance of the liquid crystal display panel designed according to the pixel structure of the present embodiment is improved by 15% compared with the conventional design when the pretilt angle of the liquid crystal is 89 degrees, and by comparing X2 with X5, it can be found that the transmittance of the liquid crystal display panel designed according to the pixel structure of the present embodiment is improved by 7% compared with the conventional design when the pretilt angle of the liquid crystal is 88 degrees, and by comparing X3 with X6, it can be found that the transmittance of the liquid crystal display panel designed according to the pixel structure of the present embodiment is improved by 4% compared with the conventional design when the pretilt angle of the liquid crystal display panel is 87 degrees, by comparing X1 with X2, it can be found that when the pretilt angle of the liquid crystal is changed from 89 degrees to 88 degrees, the transmittance of the liquid crystal display panel designed according to the pixel structure of the present embodiment is improved by 7%, by comparing X1 with X3, it can be found that when the pretilt angle of the liquid crystal is changed from 89 degrees to 87 degrees, the transmittance of the liquid crystal display panel designed according to the pixel structure of the conventional design is improved by 10%, by comparing X4 with X5, when the pretilt angle of the liquid crystal is changed from 89 degrees to 88 degrees, it can be found that the transmittance of the liquid crystal display panel designed according to the pixel structure of the conventional design is improved by 15%, by comparing X4 with X6, it can be found that when the pretilt angle of the liquid crystal is changed from 89 degrees to 87 degrees, the transmittance of the liquid crystal display panel designed according to the pixel structure of the conventional design is improved by 20%, so that, for the liquid crystal display panel with higher resolution, the transmittance of the liquid crystal display panel designed according to the pixel structure of the present embodiment is improved significantly, and when the pretilt angle of the liquid crystal is changed from 89 degrees to 87 degrees, it is also possible to further improve the transmittance of the liquid crystal display panel.
Example two
Referring to fig. 16, fig. 16 is a schematic view of a pixel unit according to an embodiment of the invention. An embodiment of the present invention also provides a pixel unit, including:
a switching member 203 electrically connecting the data line 201 and the scan line 202;
a pixel structure 10 electrically connected to the switching element 203;
wherein, the pixel structure 10 comprises a frame electrode 101 and four electrode areas arranged in the frame electrode 101, the four electrode areas are distributed in a cross shape, the width of the frame electrode 101 is more than or equal to zero, wherein,
each electrode area comprises a plurality of branch electrodes 102, a first end to a second end of each branch electrode 102 extends from the frame electrode 101 to the inside of the frame electrode 101, the branch electrodes 102 in the same electrode area are arranged in parallel at intervals, the included angle between each branch electrode 102 and the horizontal center line of the frame electrode is not equal to 90 degrees, the branch electrodes 102 in two adjacent electrode areas are not parallel to each other, and a slit 103 is arranged between two adjacent branch electrodes 102 in each electrode area.
In this embodiment, the data line 201 is perpendicular to the scan line 202, and it should be noted that, in this embodiment, the data line 201 and the scan line 202 are taken as an example to carry one pixel structure 10, in an actual display panel, one scan line 202 and one data line 201 are correspondingly carried and connected to a plurality of pixel structures, the data line 201 is used to load a data driving signal to the pixel structure 10, and the data driving signal controls the pixel structure to display colors of different gray scales according to the magnitude of a driving voltage; the scan lines 202 are used to load scan driving signals to the pixel structure, and the scan driving signals control whether data driving signals are loaded to the pixel structure 10. In one embodiment, the data lines 201 and the scan lines 202 are generally made of a conductive material, and may be a metal element, an alloy, a metal oxide, a metal nitride, a metal oxynitride, or a combination of two or more of the foregoing materials.
For better explanation, the present embodiment will be described by taking the switching device 203 as a TFT (Thin Film Transistor) as an example, but the switching device 203 is not limited to this device as long as the function can be achieved. Specifically, the TFT includes a source electrode, a drain electrode, and a gate electrode, wherein the source electrode is connected to the data line 201, the gate electrode is connected to the scan line 202, and the drain electrode is connected to the pixel structure 10. When the pixel structure is in operation, the scanning driving circuit generates a scanning driving signal, the scanning driving signal is transmitted to the grid electrode of the TFT through the scanning line, so that the grid electrode is controlled to be conducted, at the moment, the data driving signal generated by the data driving circuit is transmitted to the source electrode of the TFT through the scanning line, at the moment, the data driving signal of the source electrode is input into the pixel structure 10 due to the conduction of the grid electrode of the TFT, and one-time driving is completed.
Referring to fig. 17, fig. 17 is a schematic view of a display panel according to an embodiment of the invention. An embodiment of the present invention further provides a display panel, including:
a first substrate 11;
a second substrate 12 located opposite to the first substrate 11;
a plurality of pixel units 10 according to the embodiment of the invention, disposed between the first substrate and the second substrate;
a liquid crystal material 13 located between the first substrate 11 and the second substrate 12.
Preferably, the pretilt angle of the liquid crystal material 13 ranges from 86 degrees or more to 89 degrees or less.
The first substrate and the second substrate may be made of semiconductor materials such as glass and quartz, or organic polymers, and the material of the first substrate may be the same as or different from that of the second substrate. The main component of the liquid crystal material 13 is liquid crystal molecules, and the pretilt angle of the liquid crystal material 13 ranges from 86 degrees or more to 89 degrees or less, so that the light transmittance can be improved, and the display effect can be improved.
The pixel structure of this embodiment is the same as that of the first embodiment, and will not be described herein again.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (5)
1. A pixel structure is characterized by comprising a frame electrode and four electrode areas arranged in the frame electrode, wherein the four electrode areas are distributed in a cross shape, the width of the frame electrode is more than or equal to zero, and the width of the frame electrode is less than or equal to zero,
each electrode area comprises a plurality of branch electrodes, a first end to a second end of each branch electrode extends towards the interior of the frame electrode from the frame electrode, the branch electrodes in the same electrode area are arranged in parallel at intervals, the included angle between each branch electrode and the horizontal central line of the frame electrode is not equal to 90 degrees, the branch electrodes in two adjacent electrode areas are not parallel to each other, and a slit is arranged between two adjacent branch electrodes in each electrode area;
the slits in two electrode regions adjacent to each other along a first direction are correspondingly arranged in a one-to-one mode according to a first distance, wherein the first distance is smaller than or equal to the set side length of the slit;
the slits in two electrode areas adjacent to each other along a second direction are correspondingly arranged in a one-to-one manner in a manner of separating from each other by a second distance, wherein the second distance is less than or equal to the set side length of the slit;
the pixel structure further comprises a cross-shaped electrode or a linear electrode, when the pixel structure is the cross-shaped electrode, the cross-shaped electrode divides the pixel structure into four first partitions, and the four electrode areas are respectively distributed in the four first partitions; when the pixel structure is a linear electrode, the linear electrode divides the pixel structure into two second sub-regions, each second sub-region is provided with two electrode regions, slits of the two electrode regions in the same second sub-region comprise a plurality of first sub-slits, and the first sub-slits extend from first ends of the first sub-slits to a center line of the frame electrode perpendicular to the linear electrode, so that the first sub-slits in one of the electrode regions in the same second sub-region are correspondingly connected with the first sub-slits in the other electrode region one by one;
the electrode areas are rectangular, and the first side length and the second side length of two adjacent electrode areas are different.
2. The pixel structure according to claim 1, wherein a subtraction result of a first side length of two adjacent electrode regions is less than or equal to 10 μm and greater than or equal to 0, and a subtraction result of a second side length of two adjacent electrode regions is less than or equal to 10 μm and greater than or equal to 0.
3. The pixel structure of claim 1, wherein the branch electrodes in four electrode regions are sequentially at a first angle, a second angle, a third angle and a fourth angle with respect to a horizontal center line of the frame electrode, respectively,
the value range of the first angle is 35-55 degrees, the value range of the second angle is 125-145 degrees, the value range of the third angle is 215-235 degrees, and the value range of the fourth angle is 305-325 degrees.
4. A pixel cell, comprising:
data lines, scanning lines;
a switching member electrically connecting the data line and the scan line;
a pixel structure according to any one of claims 1 to 3, electrically connected to the switching element;
wherein the pixel structure comprises a frame electrode and four electrode areas arranged in the frame electrode, the four electrode areas are distributed in a cross shape, the width of the frame electrode is more than or equal to zero, wherein,
each electrode area comprises a plurality of branch electrodes, the first end to the second end of each branch electrode extend from the frame electrode to the inside of the frame electrode, the branch electrodes in the same electrode area are arranged in parallel at intervals, the included angle between each branch electrode and the horizontal central line of the frame electrode is not equal to 90 degrees, the branch electrodes in two adjacent electrode areas are not parallel to each other, and a slit is arranged between two adjacent branch electrodes in each electrode area.
5. A display panel, comprising:
a first substrate;
a second substrate located opposite to the first substrate;
a plurality of pixel cells as claimed in claim 4 disposed between the first and second substrates;
a liquid crystal material between the first substrate and the second substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910223985.7A CN111722442B (en) | 2019-03-22 | 2019-03-22 | Pixel structure, pixel unit and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910223985.7A CN111722442B (en) | 2019-03-22 | 2019-03-22 | Pixel structure, pixel unit and display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111722442A CN111722442A (en) | 2020-09-29 |
| CN111722442B true CN111722442B (en) | 2022-11-22 |
Family
ID=72563747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910223985.7A Active CN111722442B (en) | 2019-03-22 | 2019-03-22 | Pixel structure, pixel unit and display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111722442B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692769A (en) * | 2012-04-06 | 2012-09-26 | 友达光电股份有限公司 | Liquid crystal display panel |
| CN103472647A (en) * | 2013-09-22 | 2013-12-25 | 合肥京东方光电科技有限公司 | Array substrate, liquid crystal display panel and display device |
| CN105045012A (en) * | 2015-09-10 | 2015-11-11 | 深圳市华星光电技术有限公司 | Pixel structure, array substrate and liquid crystal display panel |
| CN106707628A (en) * | 2017-03-31 | 2017-05-24 | 友达光电股份有限公司 | Pixel structure and display panel |
| CN109283755A (en) * | 2018-08-15 | 2019-01-29 | 咸阳彩虹光电科技有限公司 | A kind of dot structure, pixel unit and display panel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI338183B (en) * | 2006-07-06 | 2011-03-01 | Au Optronics Corp | Thin film transistor substrate and liquid crystal display device using the same |
| CN108027536B (en) * | 2015-09-17 | 2021-04-09 | 夏普株式会社 | Liquid crystal display panel |
| TWI599835B (en) * | 2016-10-17 | 2017-09-21 | 友達光電股份有限公司 | Pixel unit and display panel |
-
2019
- 2019-03-22 CN CN201910223985.7A patent/CN111722442B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692769A (en) * | 2012-04-06 | 2012-09-26 | 友达光电股份有限公司 | Liquid crystal display panel |
| CN103472647A (en) * | 2013-09-22 | 2013-12-25 | 合肥京东方光电科技有限公司 | Array substrate, liquid crystal display panel and display device |
| CN105045012A (en) * | 2015-09-10 | 2015-11-11 | 深圳市华星光电技术有限公司 | Pixel structure, array substrate and liquid crystal display panel |
| CN106707628A (en) * | 2017-03-31 | 2017-05-24 | 友达光电股份有限公司 | Pixel structure and display panel |
| CN109283755A (en) * | 2018-08-15 | 2019-01-29 | 咸阳彩虹光电科技有限公司 | A kind of dot structure, pixel unit and display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111722442A (en) | 2020-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7796221B2 (en) | Liquid crystal display device and method of preventing image sticking thereon | |
| US7869676B2 (en) | Liquid crystal display panel with dual-TFTs pixel units having different TFT channel width/length ratios | |
| US7924387B2 (en) | Liquid crystal display including neighboring sub-pixel electrodes with opposite polarities in the same pixel | |
| US8179489B2 (en) | Display device | |
| JP2006330634A (en) | Liquid crystal display apparatus | |
| CN109116639B (en) | Liquid crystal display device and driving method thereof | |
| US8115878B2 (en) | Thin film transistor array substrate and liquid crystal display | |
| CN108051963B (en) | Pixel structure, display panel and display device | |
| US8045079B2 (en) | Display device | |
| US6456352B1 (en) | Liquid crystal display device | |
| CN109270749A (en) | Liquid crystal display panel and display device | |
| CN115268153A (en) | Array substrate and display device | |
| US20200168173A1 (en) | Active matrix substrate and display panel | |
| CN111722442B (en) | Pixel structure, pixel unit and display panel | |
| WO2001081993A1 (en) | Liquid crystal display unit | |
| US10209593B2 (en) | Display panel and display apparatus | |
| US9818354B2 (en) | Liquid crystal display including connector overlapping common electrode cutout | |
| KR100640215B1 (en) | In-plain switching liquid cristalline display device | |
| US9786237B2 (en) | Liquid crystal display | |
| US10423041B2 (en) | Array substrate and liquid crystal display panel | |
| US10168594B2 (en) | Liquid crystal display | |
| CN109976006B (en) | Driving method of liquid crystal display device | |
| CN115755471B (en) | Display panel and display device | |
| CN110955088B (en) | Pixel unit and display panel | |
| CN111025694B (en) | Display panel and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |