CN111025773A - Liquid crystal display panel and display device - Google Patents
Liquid crystal display panel and display device Download PDFInfo
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- CN111025773A CN111025773A CN201911267129.8A CN201911267129A CN111025773A CN 111025773 A CN111025773 A CN 111025773A CN 201911267129 A CN201911267129 A CN 201911267129A CN 111025773 A CN111025773 A CN 111025773A
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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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
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Abstract
The invention provides a liquid crystal display panel and a display device, wherein the display panel comprises an array substrate, an opposite side substrate and liquid crystal molecules, the array substrate and the opposite side substrate are arranged in a box-to-box mode, the liquid crystal molecules are arranged between the array substrate and the opposite side substrate, the array substrate comprises a plurality of pixel units, each pixel unit comprises a plurality of sub-pixel units which are arranged in an array mode, each sub-pixel unit comprises a pixel electrode, and the opposite side substrate comprises a public electrode. And the pixel electrode and/or the common electrode are/is provided with a plurality of parallel slits, and the extending direction of the slits is parallel to the direction of the liquid crystal molecules, thereby solving the problem that the transmissivity of the display panel is influenced due to poor arrangement order of the liquid crystal molecules in the existing display panel.
Description
Technical Field
The invention relates to the technical field of display, in particular to a liquid crystal display panel and a display device.
Background
UV2A (ultra Violet Vertical alignment) technology is aThe VA (Vertical Alignment) panel technology for performing liquid crystal Alignment using UltraViolet (UV) light, whose name derives from multiplication of UV light and VA mode of a liquid crystal panel, uses UV light to realize precise Alignment control of liquid crystal molecules, and the principle of UV light2The a technique can realize the state in which all liquid crystal molecules are tilted to the design direction through the alignment film, so that the liquid crystal molecules can be tilted to the same direction at the same time when an electric field is loaded, the response speed is increased to 2 times of the original response speed, and the liquid crystal molecules can be divided into a plurality of regions, have a high aperture ratio, and have the advantages of reducing power consumption, saving cost, and the like.
At present, an existing display panel includes an array substrate, a counter substrate, liquid crystal molecules, a first alignment film, a second alignment film, a first polarizer and a second polarizer, where the counter substrate includes a common electrode, the array substrate includes a pixel unit, the pixel unit includes a plurality of sub-pixel units, as shown in fig. 1 to 3, each sub-pixel unit 10 is covered with a pixel electrode 11, the pixel electrode 11 and the common electrode are usually whole sheet-shaped transparent conductive films in a pixel plane, the liquid crystal molecules are located between the array substrate and the counter substrate, the first polarizer is located outside the array substrate, the first alignment film is located inside the array substrate, the second polarizer is located outside the counter substrate, the second alignment film is located inside the counter substrate, and an angle between the first polarizer and the second polarizer is 90 ° and 0 °. The liquid crystal molecules orderly rotate under the alignment action of the alignment film, thereby realizing display.
However, in the conventional display panel, the liquid crystal molecules are only rotated by the alignment effect of the alignment film, and the rotation of the alignment direction of all the liquid crystal molecules cannot be achieved, so the order of the arrangement of the liquid crystal molecules needs to be further improved, and the transmittance of the display panel is affected.
Disclosure of Invention
The invention provides a liquid crystal display panel and a display device, which aim to solve the problem that the transmissivity of the display panel is influenced due to poor ordering of liquid crystal molecule arrangement in the conventional display panel.
The invention provides a liquid crystal display panel, comprising: the liquid crystal display panel comprises an array substrate, an opposite side substrate and liquid crystal molecules, wherein the array substrate and the opposite side substrate are arranged in a box-to-box mode, the liquid crystal molecules are arranged between the array substrate and the opposite side substrate, the array substrate comprises a plurality of pixel units, each pixel unit comprises a plurality of sub-pixel units which are arranged in an array mode, pixel electrodes are arranged on the inner sides of the sub-pixel units, and a common electrode is arranged on the inner side of the opposite side substrate;
the pixel electrode and/or the common electrode are provided with a plurality of parallel slits, and the extending direction of the slits is parallel to the alignment direction of the liquid crystal molecules.
In an embodiment of the present invention, the arrangement direction of the sub-pixel units is a row direction, and the extending direction of the slits is parallel to the row direction.
In an embodiment of the present invention, the arrangement direction of the sub-pixel units is a row direction, and the extending direction of the slits is perpendicular to the row direction.
In an embodiment of the present invention, the alignment directions of the array substrate and the opposite substrate are the same, and the alignment direction is parallel to the extending direction of the slit.
In an embodiment of the present invention, the display device further includes a first polarizer and a second polarizer, the first polarizer is located on a side of the array substrate facing away from the opposite substrate, the second polarizer is located on a side of the opposite substrate facing away from the array substrate, and the first polarizer and the second polarizer are inclined to the row direction.
In a specific embodiment of the present invention, an angle between the first polarizer and the row direction is 45 °.
In a specific embodiment of the present invention, an angle between the second polarizer and the row direction is-45 °.
In an embodiment of the present invention, the sub-pixel unit is a multi-domain.
In a specific embodiment of the present invention, the width of the slit is 1um to 10 um.
The invention also provides a display device comprising the liquid crystal display panel.
The liquid crystal display panel comprises an array substrate, an opposite side substrate and liquid crystal molecules, wherein the array substrate and the opposite side substrate are arranged in a box-to-box mode, the liquid crystal molecules are arranged between the array substrate and the opposite side substrate, the array substrate comprises a plurality of pixel units, each pixel unit comprises a plurality of sub-pixel units which are arranged in an array mode, pixel electrodes are arranged on the inner sides of the sub-pixel units, and a public electrode is arranged on the inner side of the opposite side substrate. And the pixel electrode and/or the common electrode are provided with a plurality of parallel slits, and the extending direction of the slits is parallel to the alignment direction of the liquid crystal molecules, namely, the alignment direction of the alignment film to the liquid crystal molecules is parallel to the slits, namely, the slits of the pixel electrode and/or the common electrode are consistent with the alignment direction of the liquid crystal molecules, under the electrified state, the liquid crystal molecules which only pass through the alignment force of the alignment film but do not strictly follow the alignment direction can be inclined according to the alignment direction under the action of the slit electrode, so that the uniformity of the alignment direction of the liquid crystal molecules in the same domain is improved, namely, the liquid crystal molecules can orderly rotate under the combined action of the electric field of the alignment film and the slit electrode, so that the uniformity of the alignment direction of the liquid crystal molecules in the same domain is improved, compared with the existing display panel which only rotate the liquid crystal molecules under the alignment action of the alignment film, the orderliness of liquid crystal molecule arrangement is effectively improved, and the transmittance of the display panel is improved. The problem of among the current display panel, the order nature of liquid crystal molecule arrangement is relatively poor and influences display panel's transmissivity is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a sub-pixel in a conventional liquid crystal display panel;
FIG. 2 is a schematic diagram of a conventional pixel electrode structure of an LCD panel;
FIG. 3 is a schematic diagram of a polarization direction of a polarizer in a conventional LCD panel;
FIG. 4 is a diagram of a dark-fringe simulation of a four-domain display panel of the prior art;
FIG. 5 is a schematic structural diagram of an LCD panel according to an embodiment of the present invention;
FIG. 6 is a schematic illustration of a portion of the structure of FIG. 5 in a powered state;
fig. 7 is a schematic structural diagram of a pixel electrode in an lcd panel according to an embodiment of the invention;
FIG. 8 is a schematic diagram illustrating a polarization direction of a polarizer in an LCD panel according to a second embodiment of the present invention;
fig. 9 is a simulation diagram of dark stripes of a liquid crystal display panel according to a second embodiment of the present invention;
FIG. 10 is a graph comparing the transmittance of a display panel with slits with the transmittance of a display panel without slits according to a second embodiment of the present invention;
fig. 11 is a schematic structural diagram of a pixel electrode in a liquid crystal display panel according to a third embodiment of the invention.
Description of reference numerals:
100-a display panel;
101-an array substrate;
10-a sub-pixel unit;
11-a pixel electrode;
12-a slit;
102-a counter substrate;
103-liquid crystal molecules;
104 — a first alignment film;
105-a second alignment film;
106-a first polarizer;
107-second polarizer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As described in the background art, the conventional display panel includes an array substrate, a counter substrate disposed opposite to the array substrate, a first polarizer, a second polarizer, a first alignment film and a second alignment film, wherein the first alignment film is disposed on a side of the array substrate close to the counter substrate, the second alignment film is disposed on a side of the counter substrate close to the array substrate, and liquid crystal molecules are disposed between the first alignment film and the second alignment film.
In view of the above problems, the present embodiment provides a vertically aligned liquid crystal display panel and a display device, and the specific examples are as follows:
example one
Fig. 5 is a schematic structural diagram of a liquid crystal display panel provided in this embodiment, and fig. 6 is a schematic structural diagram of fig. 5 in a power-on state. Referring to fig. 5 and 6, the present embodiment provides a liquid crystal display panel 100, where the display panel 100 includes: the liquid crystal display panel comprises an array substrate 101, a counter substrate 102 and liquid crystal molecules 103, wherein the array substrate 101 and the counter substrate 102 are arranged in a box-to-box mode, and a plurality of liquid crystal molecules 103 are distributed and arranged between the array substrate 101 and the counter substrate 102. Specifically, the array substrate 101 includes a plurality of pixel units, each pixel unit includes a plurality of sub-pixel units 10 arranged in an array, wherein each sub-pixel unit 10 includes an R sub-pixel unit, a G sub-pixel unit, and a B sub-pixel unit, each sub-pixel unit 10 is covered with a pixel electrode 11, the inner side of the opposite side substrate 102 is covered with a common electrode, the arrangement direction of the sub-pixel units 10 is the row direction, and the direction perpendicular to the row direction is the column direction.
The display panel 100 further includes a first alignment film 104 and a second alignment film 105, the first alignment film 104 is located between the array substrate 101 and the liquid crystal molecules 103, the second alignment film 105 is located between the liquid crystal molecules 103 and the opposite substrate 102, and the liquid crystal molecules 103 can rotate orderly under the alignment effect of the first alignment film 104 and the second alignment film 105 in an energized state.
In the present embodiment, the pixel electrode 11 and/or the common electrode has a plurality of slits 12 parallel to each other, and the slits 12 are parallel to the tilt direction of the aligned liquid crystal molecules 103, i.e. the extending direction of the slits 12 is parallel to the alignment direction of the liquid crystal molecules 103. Specifically, fig. 7 is a schematic structural diagram of a pixel electrode in an lcd panel according to a first embodiment of the present invention. Taking the pixel electrode 11 of the display panel 100 with a plurality of slits 12 as an example, as shown in fig. 7, the pixel electrode 11 has a plurality of slits 12 parallel to each other, the slits 12 influence the rotation of the liquid crystal molecules 103, so that the slits 12 are parallel to the tilt direction of the aligned liquid crystal molecules 103, in other words, in this embodiment, the slits 12 of the pixel electrode 11 and/or the common electrode are consistent with the alignment direction of the liquid crystal molecules 103, and in the energized state, the liquid crystal molecules 103 orderly rotate under the combined action of the alignment film and the electric field of the slit electrodes.
The slit 12 may be provided in the pixel electrode 11 on the array substrate 101 side, the slit 12 may be provided in the common electrode on the counter substrate 102 side, or the slit 12 may be provided in both the pixel electrode 11 on the array substrate 101 side and the common electrode on the counter substrate 102 side.
It should be understood that, in the present embodiment, the specific arrangement direction of the slits 12 can be selected according to the specific alignment direction of the display panel 100, the extending direction of the slits 12 can be perpendicular to the row direction, and the extending direction of the slits 12 can also be parallel to the row direction, so as to ensure that the tilt direction of the liquid crystal molecules 103 under the alignment action and the slits 12 are parallel to each other. The width of the slit 12 can be selected according to actual requirements, wherein, in the embodiment, the width of the slit 12 is 1-10 um.
In this embodiment, the sub-pixel unit 10 is a multi-domain, and the sub-pixel unit 10 may be a multi-domain pixel structure with two domains, four domains, eight domains, and the like, and when performing alignment, the sub-pixel unit may be divided into two regions, four regions, eight regions, and the like to perform alignment, so as to ensure that the tilt direction of the aligned liquid crystal molecules 103 is parallel to the slits 12.
It should be understood that the array substrate 101 may further include other film layer structures, such as a gate line, a source line, a thin film transistor, an insulating layer, a passivation layer, and the like, the opposite substrate 102 may be a color film substrate, and may also include other structural film layers, such as a color resist layer, a black matrix, a spacer, and the like, and specific structures and arrangement manners may refer to a display panel in the prior art, which is not described in detail in this embodiment.
The liquid crystal display panel 100 provided by the embodiment includes an array substrate 101, a counter substrate 102 and liquid crystal molecules 103, the array substrate 101 and the counter substrate 102 are arranged in a pair, the liquid crystal molecules 103 are arranged between the array substrate 101 and the counter substrate 102, the array substrate 101 includes a plurality of pixel units, each pixel unit includes a plurality of sub-pixel units 10 arranged in an array, each sub-pixel unit 10 includes a pixel electrode 11, and the counter substrate 102 includes a common electrode. And the pixel electrode 11 and/or the common electrode are provided with a plurality of parallel slits 12, and the slits 12 are parallel to the inclined direction of the aligned liquid crystal molecules 103, that is, the alignment direction of the alignment film to the liquid crystal molecules 103 is parallel to the slits 12, that is, the slits 12 of the pixel electrode 11 and/or the common electrode are consistent with the alignment direction of the liquid crystal molecules 103, so that when the liquid crystal molecules 40 under the action of the alignment film are electrified for display, the electric field can make the liquid crystal molecules 40 continue to rotate, and at the same time, the direction of the liquid crystal molecules 40 can be collected again, so that the liquid crystal molecules 103 which previously only pass through the alignment force of the alignment film but not strictly according to the alignment direction can be inclined according to the alignment direction under the action of the slit electrodes, and compared with the rotation of the liquid crystal molecules only through the action of the alignment film in the existing display panel, the ordering of the arrangement of the liquid crystal molecules is effectively improved, the transmittance of the display panel is improved. The problem of among the current display panel, the order nature of liquid crystal molecule arrangement is relatively poor and influences display panel's transmissivity is solved.
Example two
In the first embodiment, the liquid crystal display panel 100 provided in this embodiment uses the arrangement direction of the sub-pixel units 10 as the row direction, and the slits 12 on the pixel electrode 11 and/or the common electrode are parallel to the row direction. Specifically, in the present embodiment, for example, the pixel electrode 11 has a slit 12, as shown in fig. 7, the pixel electrode 11 has a plurality of slits 12 parallel to each other, and the slits 12 are parallel to the arrangement direction of the sub-pixel units 10, that is, an included angle between the slits 12 and the row direction is 0 °.
It should be understood that in the present embodiment, the common electrode of the opposite substrate 102 may also have a plurality of parallel slits 12, and the slits 12 are parallel to the row direction. Alternatively, the slits 12 may be provided in both the pixel electrode 11 of the array substrate 101 and the common electrode of the counter substrate 102, and the slits 12 may be parallel to the row direction.
In this embodiment, when the array substrate 101 and the opposite substrate 102 of the display panel 100 are aligned, the alignment directions of the array substrate 101 and the opposite substrate 102 may be the same, and the alignment direction is parallel to the slits 12, that is, an included angle between the alignment direction and the row direction is 0 ° and parallel to the row direction, so that after the alignment and the superposition of the array substrate 101 and the opposite substrate 102, the alignment direction of the liquid crystal molecules 103 in the sub-pixel unit 10 is parallel to the row direction and further parallel to the slits 12, so that the liquid crystal molecules 103 are rotated under the combined action of alignment and the slit electrodes, the arrangement order of the liquid crystal molecules 103 is effectively improved, and the transmittance of the display panel 100 is improved.
In this embodiment, the display panel 100 further includes a first polarizer 106 and a second polarizer 107, the first polarizer 106 is located on a side of the array substrate 101 facing away from the opposite substrate 102, the second polarizer 107 is located on a side of the opposite substrate 102 facing away from the array substrate 101, and the first polarizer 106 and the second polarizer 107 are inclined to the row direction. Fig. 8 is a schematic view of the polarization direction of the polarizer in the liquid crystal display panel 100 provided in this embodiment, as shown in fig. 5 and fig. 8, the first polarizer 106 is located on a side of the array substrate 101 away from the opposite substrate 102, and the second polarizer 107 is located on a side of the opposite substrate 102 away from the array substrate 101, in this embodiment, the slit 12 is parallel to the row direction, and the alignment direction of the liquid crystal molecules 103 is also parallel to the row direction, so that the first polarizer 106 and the second polarizer 107 are inclined to the row direction to ensure the display effect of the display panel.
The first polarizer 106 and the second polarizer 107 may be polarizers in the prior art, specific structures and molding materials of the first polarizer 106 and the second polarizer 107 may refer to the prior art, specifically, the first polarizer 106 and the second polarizer 107 include PVA (polyvinyl alcohol) layers with a polarizing effect, TAC (triacetylcellulose) layers may be respectively compounded on two sides of the PVA, the TAC has high light transmittance and good water resistance and has a certain mechanical strength, and can play a role in protection, then according to a use requirement, a PSA (pressure sensitive adhesive) layer is coated on the outer side of the TAC on one side of the PVA, and a protective film and a reflective film may be respectively compounded on the other side of the TAC according to a product type. Semi-transparent semi-reflective glue film and the like.
It should be understood that the specific polarization angles of the first polarizer 106 and the second polarizer 107 can be selected according to actual requirements, wherein, in the embodiment, the included angle between the first polarizer 106 and the row direction is 45 °, the second polarizer 107 is perpendicular to the first polarizer 106, and the included angle between the second polarizer 107 and the row direction is-45 °. Because the slits 12 are parallel to the row direction, and the rotation direction of the aligned liquid crystal molecules 103 is the same as the slits 12, that is, the included angle between the alignment rotation direction of the liquid crystal molecules 103 and the row direction is 0 °, the included angle between the first polarizer 106 and the row direction is 45 °, the included angle between the second polarizer 107 is-45 °, the tilt included angle between the rotated liquid crystal molecules 103 and the first polarizer 106 or the second polarizer 107 can be in a better position, so that the penetration efficiency of the liquid crystal molecules 103 is better, and the transmittance of the display panel 100 is further improved.
Fig. 4 is a diagram of simulating dark stripes of a conventional four-domain display panel, where an alignment method is a conventional vertical alignment method, and specifically includes: the array substrate is divided into a first part positioned on the left side and a second part positioned on the right side, the array substrate is aligned in the column direction, and the alignment direction of the first part is opposite to that of the second part. And dividing the opposite substrate into a third part positioned above and a fourth part positioned below, aligning the opposite substrate in the row direction, wherein the alignment direction of the third part is opposite to that of the fourth part. By using the alignment mode, the display area of the pixel structure forms swastika-shaped dark stripes, and the transmittance of the display panel is greatly influenced. Fig. 9 is a simulated diagram of dark fringes of the liquid crystal display panel according to the second embodiment, in this embodiment, the slits 12 are formed on the pixel electrode 11, the slits 12 are parallel to the row direction, and the slits 12 are parallel to the oblique direction of the aligned liquid crystal molecules 103, so that the arrangement order of the liquid crystal molecules 103 is improved, and simultaneously, a pattern without dark fringes in the display of the sub-pixel unit 10 can be formed, thereby improving the dark fringes and further improving the transmittance of the display panel 100. Fig. 10 is a graph comparing the transmittance of a display panel with slits and the transmittance of a display panel without slits according to the second embodiment of the present invention, in which the transmittance is obtained by performing optical simulation on the display panel through optical software, a solid line represents the transmittance of a liquid crystal display panel with slits, and a dotted line represents the transmittance of a liquid crystal display panel without slits, as shown in fig. 10, the transmittance of a display panel with slits on a pixel electrode is significantly higher than that of a display panel without slits, and specifically, the transmittance of a display panel with slits 12 on a pixel electrode 11 is improved by about 30% compared with that of a display panel without slits.
In the liquid crystal display panel 100 provided by this embodiment, the slits 12 are parallel to the arrangement direction of the sub-pixel units 10, and when the display panel 100 is aligned, the alignment directions of the array substrate 101 and the opposite substrate 102 are the same and parallel to the row direction, so that the rotation direction after the liquid crystal molecules 103 are aligned is parallel to the slits 12, the liquid crystal molecules 103 are rotated under the joint action of the alignment film and the electrodes of the slits 12, the arrangement order of the liquid crystal molecules 103 is effectively improved, and the transmittance of the display panel 100 is improved. In addition, the angle between the first polarizer 106 and the row direction is 45 °, and the angle between the second polarizer 107 and the row direction is-45 °, which is helpful for improving the penetration efficiency of the liquid crystal molecules 103 and further improving the transmittance of the display panel 100.
EXAMPLE III
In the first embodiment, the liquid crystal display panel 100 provided in this embodiment uses the arrangement direction of the sub-pixel units 10 as the row direction, and the slits 12 on the pixel electrode 11 and/or the common electrode are perpendicular to the row direction. Fig. 11 is a schematic structural diagram of a pixel electrode in a liquid crystal display panel according to a third embodiment, in this embodiment, taking a slit 12 on a pixel electrode 11 as an example, as shown in fig. 6 and 11, a plurality of mutually perpendicular slits 12 are formed on the pixel electrode 11, and the slits 12 are perpendicular to an arrangement direction of sub-pixel units 10, that is, an included angle between the slits 12 and a row direction is 90 °.
It should be understood that in the present embodiment, the common electrode of the opposite substrate 102 may also have a plurality of parallel slits 12, and the slits 12 are perpendicular to the row direction. Alternatively, the slits 12 may be provided in both the pixel electrode 11 of the array substrate 101 and the common electrode of the counter substrate 102, and the slits 12 may be perpendicular to the row direction.
In this embodiment, when the array substrate 101 and the opposite substrate 102 of the display panel 100 are aligned, the alignment directions of the array substrate 101 and the opposite substrate 102 may be the same, and the alignment direction is parallel to the slits 12, that is, the alignment direction and the row direction form an angle of 90 ° and are perpendicular to the row direction, so that after the array substrate 101 and the opposite substrate 102 are aligned and stacked, the liquid crystal molecules 103 in the sub-pixel unit 10 rotate perpendicularly to the row direction after being aligned, and then are parallel to the slits 12, so that the liquid crystal molecules 103 rotate under the joint action of the alignment and the electrodes of the slits 12, the arrangement order of the liquid crystal molecules 103 is effectively improved, and the transmittance of the display panel 100 is improved.
In this embodiment, the display panel 100 further includes a first polarizer 106 and a second polarizer 107, and the specific arrangement manner and the molding material of the first polarizer 106 and the second polarizer 107 may refer to embodiment two, which is not described in detail in this embodiment.
It should be understood that the specific polarization angles of the first polarizer 106 and the second polarizer 107 can be selected according to actual requirements, in this embodiment, the included angle between the first polarizer 106 and the row direction is 45 °, the second polarizer 107 is perpendicular to the first polarizer 106, and the included angle between the second polarizer 107 and the row direction is-45 °, so that the inclined included angle between the rotated liquid crystal molecules 103 and the first polarizer 106 or the second polarizer 107 is in a better position, thereby optimizing the transmission efficiency of the liquid crystal molecules 103 and further improving the transmittance of the display panel 100.
Referring to the second embodiment, it should be understood that, in this embodiment, the pixel electrode 11 is provided with the slits 12, the slits 12 are perpendicular to the row direction, and the slits 12 are perpendicular to the inclined direction of the aligned liquid crystal molecules 103, so that while the arrangement order of the liquid crystal molecules 103 is improved, a pattern without dark fringes in the display of the sub-pixel unit 10 shown in fig. 9 can be formed, the dark fringes are improved, and the transmittance of the display panel 100 is further improved. The transmittance of the display panel with the slits on the pixel electrodes in the direction perpendicular to the row direction is also obviously higher than that of the display panel without the slits, and the transmittance can be improved by about 30% compared with that of the display panel without the slits.
In the liquid crystal display panel 100 provided by this embodiment, the slits 12 are perpendicular to the arrangement direction of the sub-pixel units 10, and when the display panel 100 is aligned, the alignment directions of the array substrate 101 and the opposite substrate 102 are the same and perpendicular to the row direction, so that the rotation direction after the alignment of the liquid crystal molecules 103 is parallel to the slits 12, the liquid crystal molecules 103 are rotated under the joint action of the alignment and the electrodes of the slits 12, the arrangement order of the liquid crystal molecules 103 is effectively improved, and the transmittance of the display panel 100 is improved. In addition, the angle between the first polarizer 106 and the row direction is 45 °, and the angle between the second polarizer 107 and the row direction is-45 °, which is helpful for improving the penetration efficiency of the liquid crystal molecules 103 and further improving the transmittance of the display panel 100.
Example four
The present embodiment provides a display device including the liquid crystal display panel according to any one of the first to third embodiments. The display device can be any product or component with a display function, such as a liquid crystal display device, electronic paper, a mobile phone, a tablet computer, a television, a notebook computer, a digital photo frame, a navigator and the like.
The display device provided by the embodiment comprises a liquid crystal display panel, wherein the display panel comprises an array substrate 101, a counter substrate 102 and liquid crystal molecules 103, the array substrate 101 and the counter substrate 102 are arranged in a box-to-box mode, the liquid crystal molecules 103 are arranged between the array substrate 101 and the counter substrate 102, the array substrate 101 comprises a plurality of pixel units, each pixel unit comprises a plurality of sub-pixel units 10 arranged in an array mode, each sub-pixel unit 10 comprises a pixel electrode 11, and the counter substrate 102 comprises a common electrode. And make the pixel electrode 11 and/or have many parallel slits 12 on the common electrode, and the slit 12 is parallel to the inclined direction of the liquid crystal molecule 103 after alignment, namely the alignment direction of the alignment film to the liquid crystal molecule 103 is parallel to slit 12, that is to say the slit 12 of the pixel electrode 11 and/or common electrode keeps the same with the direction to the alignment of the liquid crystal molecule 103, under the power-on state, the liquid crystal molecule 103 will produce the ordered rotation under the coaction of alignment action and slit electrode electric field, compared with making the liquid crystal molecule rotate only through alignment action in the existing display panel, the ordering of the liquid crystal molecule arrangement is effectively improved, the transmittance of the display panel is promoted.
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", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; either directly or indirectly through intervening media, may be used in either the internal or the external relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A liquid crystal display panel, comprising: the liquid crystal display panel comprises an array substrate, an opposite side substrate and liquid crystal molecules, wherein the array substrate and the opposite side substrate are arranged in a box-to-box mode, the liquid crystal molecules are arranged between the array substrate and the opposite side substrate, the array substrate comprises a plurality of pixel units, each pixel unit comprises a plurality of sub-pixel units which are arranged in an array mode, pixel electrodes are arranged on the inner sides of the sub-pixel units, and a common electrode is arranged on the inner side of the opposite side substrate;
the pixel electrode and/or the common electrode are provided with a plurality of parallel slits, and the extending direction of the slits is parallel to the alignment direction of the liquid crystal molecules.
2. The liquid crystal display panel according to claim 1, wherein an arrangement direction of the sub-pixel units is a row direction, and an extending direction of the slits is parallel to the row direction.
3. The liquid crystal display panel according to claim 1, wherein an arrangement direction of the sub-pixel units is a row direction, and an extending direction of the slits is perpendicular to the row direction.
4. The liquid crystal display panel according to claim 2 or 3, wherein the alignment directions of the array substrate and the counter substrate are the same, and the alignment direction is parallel to the extending direction of the slit.
5. The liquid crystal display panel according to claim 4, further comprising a first polarizing plate on a side of the array substrate facing away from the counter substrate and a second polarizing plate on a side of the counter substrate facing away from the array substrate, the first and second polarizing plates being inclined to the row direction.
6. The liquid crystal display panel of claim 5, wherein the first polarizer has an angle of 45 ° with respect to the row direction.
7. The liquid crystal display panel of claim 6, wherein the second polarizer has an angle of-45 ° with respect to the row direction.
8. The panel of any of claims 1-3 or 5-7, wherein the sub-pixel cells are multi-domain.
9. The liquid crystal display panel according to any one of claims 1 to 3 or 5 to 7, wherein the width of the slit is 1um to 10 um.
10. A display device comprising the liquid crystal display panel according to any one of claims 1 to 9.
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