CN115202107A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN115202107A CN115202107A CN202210931426.3A CN202210931426A CN115202107A CN 115202107 A CN115202107 A CN 115202107A CN 202210931426 A CN202210931426 A CN 202210931426A CN 115202107 A CN115202107 A CN 115202107A
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- retaining wall
- orthographic projection
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13396—Spacers having different sizes
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- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses a display panel and a display device, which are used for avoiding a support part from scratching an alignment layer of an opening area of a sub-pixel. The display panel includes: the liquid crystal display device comprises an array substrate, an opposite substrate, a liquid crystal layer and a supporting part; the array substrate includes: the first substrate comprises a first substrate base plate, a signal wire and a retaining wall structure; the retaining wall structure includes: the first retaining wall structure is positioned between the second retaining wall structure and the signal line; the supporting part has an overlap in the area between the orthographic projection of the first substrate and the orthographic projection of the two first retaining wall structures on the first substrate; a first groove is arranged between the first retaining wall structure and the second retaining wall structure, and a second groove is arranged between the first retaining wall structure and the region corresponding to the signal line; in the direction perpendicular to the extension direction of the signal line, the maximum width of the first groove is smaller than the maximum width of the surface of the support part on one side close to the first substrate base plate, and the maximum width of the second groove is smaller than the maximum width of the surface of the support part on one side close to the first substrate base plate.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
Liquid crystal display products are favored because of their advantages such as low power consumption and low cost. In order to control the uniformity of the thickness of the liquid crystal cell and to make the liquid crystal display panel have good pressure resistance when stressed, a spacer is required to be arranged between two opposite substrates of the liquid crystal display panel. However, in a scene of carrying the liquid crystal display panel, performing a pressure test on the liquid crystal display panel, etc., the spacer is biased by a force, if the spacer is biased to the opening area, the alignment layer of the opening area is easily scratched, and in the opening area and the area where the alignment layer is scratched, the liquid crystal molecules cannot be aligned correctly, so that red and blue bright spots are easily formed, and the display effect of the display panel is affected.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which are used for preventing a support part from scratching an alignment layer of an opening area of a sub-pixel.
The embodiment of the application provides a display panel, display panel includes: the liquid crystal display panel comprises an array substrate, an opposite substrate, a liquid crystal layer and a plurality of supporting parts, wherein the array substrate and the opposite substrate are oppositely arranged;
the array substrate includes: the liquid crystal display device comprises a first substrate, a plurality of signal lines and a plurality of retaining wall structures, wherein the signal lines and the retaining wall structures are positioned on one side, facing a liquid crystal layer, of the first substrate;
the retaining wall structure includes: the first retaining wall structures are positioned between the second retaining wall structures and the signal line;
when the supporting part is located at the initial position, the orthographic projection of the supporting part on the first substrate and the orthographic projection of the retaining wall structures on the first substrate are not overlapped, and the area of the orthographic projection of the supporting part on the first substrate and the area of the orthographic projection of the two first retaining wall structures on the first substrate are overlapped;
a first groove is arranged between the first retaining wall structure and the second retaining wall structure, and a second groove is arranged between the first retaining wall structure and the region corresponding to the signal line; in the direction perpendicular to the extension direction of the signal line, the maximum width of the first groove is smaller than the maximum width of the surface of the support part on one side close to the first substrate base plate, and the maximum width of the second groove is smaller than the maximum width of the surface of the support part on one side close to the first substrate base plate.
In some embodiments, the thickness of the second retaining wall structure is greater than that of the first retaining wall structure in a direction perpendicular to the first substrate base plate;
the distance between the plane of the surface of the second retaining wall structure facing the liquid crystal layer and the plane of the surface of the supporting part facing the opposite substrate is smaller than the thickness of the supporting part in the direction perpendicular to the first substrate.
In some embodiments, a ratio of a distance between a plane of a surface of the second barrier structure facing the liquid crystal layer and a plane of a surface of the support portion facing the opposite substrate to a thickness of the support portion in a direction perpendicular to the first substrate is greater than 80%.
In some embodiments, a ratio of a distance between a plane of a surface of the first barrier structure facing the liquid crystal layer and a plane of a surface of the support portion facing the opposite substrate to a thickness of the support portion in a direction perpendicular to the first substrate is greater than 90%.
In some embodiments, the plurality of signal lines are a plurality of scan lines extending in a first direction;
the orthographic projection of the supporting part on the first substrate base plate falls into the orthographic projection of the scanning line on the first substrate base plate.
In some embodiments, the array substrate further includes a plurality of data lines extending in the second direction; the second direction intersects the first direction; in the direction perpendicular to the first substrate, the scanning line is positioned between the first substrate and the data line;
the first retaining wall structure comprises: with the first substructure of scanning line with the layer setting, second retaining wall structure includes: a second substructure disposed on the same layer as the data line;
the thickness of the second substructure is greater than the thickness of the first substructure in a direction perpendicular to the first substrate base.
In some embodiments, the array substrate further comprises: the liquid crystal display device comprises a first substrate, a common electrode, a gate insulating layer, a passivation layer, a plurality of pixel electrodes and a first alignment layer, wherein the common electrode is positioned between a first substrate and a scanning line;
first retaining wall structure and second retaining wall structure still include: the liquid crystal display device comprises a common electrode, a gate insulating layer, a passivation layer, a pixel electrode and a first alignment layer.
In some embodiments, in the second direction, a distance between an orthogonal projection of the first substructure on the first substrate and an orthogonal projection of the second substructure on the first substrate is smaller than a maximum width of a surface of the support portion on a side close to the first substrate, and a distance between an orthogonal projection of the first substructure on the first substrate and an orthogonal projection of the scan line on the first substrate is smaller than a maximum width of a surface of the support portion on a side close to the first substrate.
In some embodiments, in the second direction, a distance between an orthogonal projection of the first substructure on the first substrate and an orthogonal projection of the second substructure on the first substrate is smaller than a distance between an orthogonal projection of the first substructure on the first substrate and an orthogonal projection of the scan line on the first substrate.
In some embodiments, the orthographic projection of the common electrode on the first substrate base plate and the scanning line do not overlap, and the common electrode is in contact with the first substructure.
In some embodiments, the orthographic projection of the pixel electrode on the first substrate does not overlap with the scanning line.
In some embodiments, the pixel electrode includes a plurality of stripe structures extending in a third direction; an included angle between the third direction and the first direction and an included angle between the third direction and the second direction are both larger than 0;
first barricade structure and second barricade structure all include bar structure.
In some embodiments, the opposite substrate includes: a second substrate base plate, a shading layer positioned at one side of the second substrate base plate facing the liquid crystal layer; the light-shielding layer includes: a plurality of first open areas;
the orthographic projection of the supporting part on the second substrate falls into the orthographic projection of the light shielding layer on the second substrate;
the orthographic projection of the retaining wall structure on the second substrate base plate falls into the orthographic projection of the light shielding layer on the second substrate base plate.
The display device provided by the embodiment of the application comprises the display panel provided by the embodiment of the application.
The display panel and the display device provided by the embodiment of the disclosure have the advantages that the retaining wall structure is arranged on the array substrate, and the arrangement direction of the retaining wall structure and the supporting part is perpendicular to the extending direction of the signal line, so that the retaining wall structure can be used for preventing the supporting part from sliding to the opening area of the sub-pixel to scratch the film layer of the area, and the phenomenon that the liquid crystal in the scratched area cannot be aligned to generate poor display is avoided. Between the opening district of supporting part and subpixel, retaining wall structure includes first retaining wall structure, second retaining wall structure, blocks the supporting part through two sets of retaining wall structures promptly and slides on the slip path of supporting part, and first retaining wall structure, the thickness of second retaining wall structure all need not too thick and also can realize good effect of blockking, avoids the supporting part to slide retaining wall structure department the big unable recovery of compression volume and leads to the increase of supporting part place position display panel thickness, avoids appearing snowflake demonstration bad. And, because the maximum width of the first recess between first barricade structure and the current structure of second, the maximum width of the second recess between first barricade structure and the signal line corresponding region all is less than the maximum width that the supporting part is close to first substrate base plate side surface to even if the supporting part slides and also can not block in first recess, second recess department and can't resume, further avoid the supporting part can't resume and lead to the increase of the thickness of the display panel of supporting part place position, avoid appearing snowflake and show badly.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a cross-sectional view along AA' of FIG. 1 according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of another display panel provided in the embodiment of the present application;
fig. 4 is a schematic flowchart of a signal receiving method according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used in this application, the terms "first," "second," and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
It should be noted that the sizes and shapes of the figures in the drawings are not to be considered true scale, but are merely intended to schematically illustrate the present disclosure. And the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
An embodiment of the present application provides a display panel, as shown in fig. 1 and fig. 2, the display panel includes: the liquid crystal display panel comprises an array substrate 1 and an opposite substrate 2 which are oppositely arranged, a liquid crystal layer 3 and a plurality of supporting parts 4 which are positioned between the array substrate 1 and the opposite substrate 2;
the array substrate 1 includes: a first substrate 5, a plurality of signal lines 6 and a plurality of dam structures 7 located on one side of the first substrate 5 facing the liquid crystal layer 3;
the retaining wall structure 7 includes: two first retaining wall structures 8 respectively positioned at two sides of the signal line 6, and second retaining wall structures 9 respectively positioned at two sides of the signal line 6, wherein the first retaining wall structures 8 are positioned between the second retaining wall structures 9 and the signal line 6;
when the support part 4 is located at the initial position, the orthographic projection of the support part 4 on the first substrate 5 and the orthographic projection of the retaining wall structures on the first substrate 5 are not overlapped, and the area between the orthographic projection of the support part 4 on the first substrate 5 and the orthographic projection of the two first retaining wall structures 8 on the first substrate 5 has overlapping;
a first groove 10 is arranged between the first retaining wall structure 8 and the second retaining wall structure 9, and a second groove 11 is arranged between the first retaining wall structure 8 and the region corresponding to the signal line 6; in a direction extending perpendicularly to the signal line 6, a maximum width l1 of the first groove 10 is smaller than a maximum width l6 of a surface of the support portion 4 on a side close to the first substrate base 5, and a maximum width l2 of the second groove 11 is smaller than a maximum width l6 of a surface of the support portion 4 on a side close to the first substrate base 5.
It should be noted that the initial position is a position where the support portion is disposed in the display panel manufacturing process. When the display panel is not pressed, the support part is still positioned at the initial position without sliding; when the display panel is pressed, the supporting portion may slide to deviate from the initial position. In fig. 1, the orthographic projection of the support portion 4 on the first substrate 5 is the orthographic projection of the support portion 4 on the first substrate 5 when the support portion 4 is at the initial position.
The display panel provided by the embodiment of the disclosure is provided with the retaining wall structure on the array substrate, and the arrangement direction of the retaining wall structure and the supporting part is perpendicular to the extension direction of the signal line, so that the retaining wall structure and the supporting part can be used for preventing the supporting part from sliding to the opening area of the sub-pixel to scratch the film layer in the area, and the liquid crystal in the scratched area can not be aligned to generate poor display. Between the opening district of supporting part and subpixel, the barricade structure includes first barricade structure, the second barricade structure, block the supporting part through two sets of barricade structures promptly and slide on the slip route of supporting part, first barricade structure, the thickness of second barricade structure all need not too thick and also can realize good effect of blockking, initial position when avoiding the supporting part to slide barricade structure department compression volume greatly can't resume not taking place to slide leads to the increase of supporting part place position display panel thickness, avoid appearing snowflake demonstration bad. And, because the maximum width of the first recess between first barricade structure and the current structure of second, the maximum width of the second recess between first barricade structure and the signal line corresponding region all is less than the maximum width that the supporting part is close to first substrate base plate side surface to even if the supporting part slides and also can not block in first recess, second recess department and can't resume, further avoid the supporting part can't resume and lead to the increase of the thickness of the display panel of supporting part place position, avoid appearing snowflake and show badly.
Fig. 2 is a cross-sectional view along AA' in fig. 1.
In some embodiments, as shown in fig. 2, the opposite substrate 2 includes: a second base substrate 22, a light-shielding layer 23 on the side of the second base substrate 22 facing the liquid crystal layer 3; as shown in fig. 1, the light-shielding layer 23 includes: a plurality of first open areas 24;
as shown in fig. 1 and 2, the orthographic projection of the support portion 4 on the second substrate 22 falls within the orthographic projection of the light shielding layer 23 on the second substrate 22; the orthographic projection of the retaining wall structure on the second substrate 22 falls within the orthographic projection of the light shielding layer 23 on the second substrate 22.
In specific implementation, the first opening regions correspond to the sub-pixels one by one, that is, the region corresponding to the first opening region is the opening region of the sub-pixel. The embodiment of the application provides a display panel, supporting part and barricade structure all fall into the light shield layer in the orthographic projection of second substrate base plate at the orthographic projection of second substrate base plate, supporting part promptly, barricade structure set up the region outside first open area, the display of display panel can not influenced in supporting part, barricade structure's setting to the barricade structure can also block the supporting part and slide the region that first open area corresponds and the rete in this region of fish tail, avoid the regional liquid crystal of fish tail can't assign to and produce to show badly.
In some embodiments, as shown in fig. 1, the orthographic projection of the signal line 6 on the second substrate falls within the orthographic projection of the light shielding layer 23 on the second substrate.
In some embodiments, the opposite substrate further comprises a color resist located in the first opening region. The sub-pixels include, for example, a red sub-pixel, a blue sub-pixel, and a green sub-pixel, and accordingly, the color resistors include: the red color resistance is positioned in the first opening area corresponding to the red sub-pixel, the blue color resistance is positioned in the first opening area corresponding to the blue sub-pixel, and the green color resistance is positioned in the first opening area corresponding to the green sub-pixel.
In some embodiments, as shown in fig. 2, a distance h1 between a plane of a surface of the second barrier structure 9 facing the liquid crystal layer 3 and a plane of a surface of the support portion 4 facing the opposite substrate 2, and a distance h2 between a plane of a surface of the first barrier structure 8 facing the liquid crystal layer 3 and a plane of a surface of the support portion 4 facing the opposite substrate 2 are smaller than a thickness h3 of the support portion 4 in a direction perpendicular to the first substrate 5. So that the retaining wall structure can prevent the support part from sliding towards the opening area of the sub-pixel.
In some embodiments, as shown in fig. 2, the thickness of the second retaining wall structure 9 is greater than that of the first retaining wall structure 8 in the direction perpendicular to the first substrate base plate 5.
The display panel that this application embodiment provided, second barricade structure is located one side that first barricade structure deviates from the supporting part, fails to block the supporting part and slides to the opening district of sub-pixel when first barricade structure, and the thickness of second barricade structure is greater than the thickness of first barricade structure and more is favorable to blockking the supporting part through second barricade structure and slides.
In the case where the distance h1 between the plane of the surface of the second barrier structure on the side facing the liquid crystal layer and the plane of the surface of the support portion on the side facing the opposite substrate is smaller than the thickness h3 of the support portion in the direction perpendicular to the first substrate, in some embodiments, as shown in fig. 2, the ratio of the distance h1 between the plane of the surface of the second barrier structure 9 on the side facing the liquid crystal layer 3 and the plane of the surface of the support portion 4 on the side facing the opposite substrate 2 to the thickness h3 of the support portion 4 in the direction perpendicular to the first substrate 5 is greater than 80%. Therefore, if the supporting part slides to the area corresponding to the second retaining wall, the compression amount of the supporting part in the direction perpendicular to the first substrate base plate is less than 20%, the phenomenon that the compression amount of the supporting part in the direction perpendicular to the first substrate base plate is too large and cannot be recovered to the initial position where the supporting part does not slide can be avoided, the phenomenon that the thickness of the display panel at the position is increased due to the fact that the supporting part cannot be recovered to the initial position is avoided, and the phenomenon that snowflake display is poor is avoided.
In the case where the distance h2 between the plane of the surface of the first barrier structure facing the liquid crystal layer and the plane of the surface of the support portion facing the opposite substrate is less than the thickness h3 of the support portion in the direction perpendicular to the first substrate, in some embodiments, as shown in fig. 2, the ratio of the distance h2 between the plane of the surface of the first barrier structure 8 facing the liquid crystal layer 3 and the plane of the surface of the support portion 4 facing the opposite substrate 2 to the thickness h3 of the support portion 4 in the direction perpendicular to the first substrate 5 is greater than 90%. Therefore, if the supporting part slides to the area corresponding to the first retaining wall, the compression amount of the supporting part in the direction perpendicular to the first substrate base plate is less than 10%, the situation that the compression amount of the supporting part in the direction perpendicular to the first substrate base plate is too large and cannot be restored to the initial position where the supporting part is not slid can be avoided, the situation that the thickness of the display panel at the position is increased due to the fact that the supporting part cannot be restored to the initial position is avoided, and the situation that snowflake display is poor is avoided.
In some embodiments, as shown in fig. 1, the plurality of signal lines 6 is a plurality of scan lines 12 extending along the first direction X; the array substrate further comprises a plurality of data lines 13 extending along a second direction Y, and the first direction X is crossed with the second direction Y;
the orthographic projection of the support 4 on the first substrate 5 falls within the orthographic projection of the scanning line 12 on the first substrate 5.
Accordingly, the orthographic projection of the retaining wall structure 7 on the first substrate 5 falls within the orthographic projection of the scanning line 12 on the first substrate 5.
In a specific embodiment, as shown in fig. 1, the light-shielding layer includes: a plurality of first light-shielding portions 25 extending in the first direction X and a plurality of second light-shielding portions 26 extending in the second direction Y. The width of the first light-shielding portion 25 in the second direction Y is larger than the width of the second light-shielding portion 26 in the first direction X, and the orthographic projection of the first light-shielding portion 25 on the first substrate covers the orthographic projection of the scanning line 12 on the first substrate. That is, the orthographic projections of the supporting portion 4 and the retaining wall structures 7 on the first substrate all fall within the orthographic projection of the first light-shielding portion 25 on the first substrate. The supporting part and the retaining wall structure are arranged in the area covered by the first shading part with wider width, so that the size of the supporting part can be increased to increase the supporting effect, and the retaining wall structure for blocking the opening area of the sub-pixel scratched by the supporting part is arranged in enough space under the condition of avoiding influencing the display effect.
In some embodiments, the scan lines are located between the first substrate base plate and the data lines in a direction perpendicular to the first substrate base plate;
as shown in fig. 2, the first retaining wall structure 8 includes: the first substructure 14 disposed on the same layer as the scan line 12, the second barrier structure includes: a second substructure 15 disposed on the same layer as the data line;
the thickness of the second substructure 15 is greater than the thickness of the first substructure 14 in a direction perpendicular to the first substrate base plate 5.
In a specific implementation, the first retaining wall structure includes, in addition to the first substructure, all other film layers disposed on a side of the first substrate facing the liquid crystal layer in a region corresponding to the first substructure. The second barrier structure comprises a second substructure and all other film layers arranged on the side of the first substrate facing the liquid crystal layer in the area corresponding to the second substructure.
The display panel provided by the embodiment of the application is equivalent to additionally arranging the first substructure and the second substructure to form the retaining wall structure, the first substructure and the scanning lines are arranged at the same layer, and the second substructure and the data lines are arranged at the same layer, so that the array substrate preparation process flow can be saved. And the thickness of the second substructure is larger than that of the first substructure, so that the thickness of the first retaining wall structure of the thickness of the second retaining wall structure is convenient to realize.
In some embodiments, as shown in fig. 2, the array substrate 1 further includes: a common electrode 16 between the first substrate base 5 and the scan line 12, a gate insulating layer 18 between the scan line 12 and the data line, a passivation layer 19 between the data line and the liquid crystal layer 3, a plurality of pixel electrodes 17 between the passivation layer 19 and the liquid crystal layer 3, and a first alignment layer 20 between the pixel electrodes 17 and the liquid crystal layer 3;
first retaining wall structure 8 and second retaining wall structure 9 still include: a common electrode 16, a gate insulating layer 18, a passivation layer 19, a pixel electrode 17, and a first alignment layer 20.
Namely, the first retaining wall structure comprises: public electrode, first substructure, gate insulation layer, passivation layer, pixel electrode and first alignment layer, the second baffle wall structure includes: the pixel structure comprises a common electrode, a gate insulating layer, a second substructure, a passivation layer, a pixel electrode and a first alignment layer.
In an embodiment, the opposite substrate further includes a second alignment film, and the second alignment film is located on the side of the light shielding layer and the side of the color resistors facing the liquid crystal layer, so that the first alignment film and the second alignment film jointly align the liquid crystal in the liquid crystal layer.
As shown in fig. 2, the region corresponding to the scan line 12 further includes a gate insulating layer 18, a passivation layer 19, and a first alignment layer 20. A second groove 11 is formed between the first bank structure 8 and the structure of the scan line 12, the gate insulating layer 18, the passivation layer 19 and the first alignment layer 20.
In some embodiments, as shown in fig. 1, in the second direction Y, a distance l4 between an orthographic projection of the first substructure 14 on the first substrate 5 and an orthographic projection of the second substructure 15 on the first substrate 5 is smaller than a maximum width of a side surface of the support portion 4 near the first substrate 5, and a distance l3 between an orthographic projection of the first substructure 14 on the first substrate 5 and an orthographic projection of the scan line 12 on the first substrate 5 is smaller than a maximum width of a side surface of the support portion 4 near the first substrate 5.
In this way, after the film layers are formed on the scan line, the first substructure and the second substructure, the maximum width of the first groove and the second groove is inevitably smaller than the maximum width of the surface of the support portion on the side close to the first substrate. Thereby even if the supporting part appears sliding also can not block in first recess, second groove and can't resume, further avoid the supporting part can't resume and lead to the increase of supporting part position display panel thickness, avoid appearing snowflake demonstration bad. The display panel provided by the embodiment of the application can simplify the design difficulty of the array substrate by designing the size between two adjacent scanning lines, the first substructure and the second substructure so as to avoid the support part to be clamped at the first groove and the second groove.
As shown in fig. 1, a distance l4 between an orthographic projection of the first substructure 14 on the first substrate 5 and an orthographic projection of the second substructure 15 on the first substrate 5 is: the distance between the orthographic projection of the first substructure 14 on the first substrate 5 and the two closest sides of the second substructure 15 in the orthographic projection of the first substrate 5. The distance l3 between the orthographic projection of the first substructure 14 on the first substrate 5 and the orthographic projection of the scan line 12 on the first substrate 5 means: the distance between the orthographic projection of the first substructure 14 on the first substrate 5 and the two closest sides of the scan line 12 in the orthographic projection of the first substrate 5.
In some embodiments, as shown in fig. 1, in the second direction Y, a distance l4 between an orthographic projection of the first substructure 14 on the first substrate 5 and an orthographic projection of the second substructure 15 on the first substrate 5 is smaller than a distance l3 between an orthographic projection of the first substructure 14 on the first substrate 5 and an orthographic projection of the scan line 12 on the first substrate 5.
In some embodiments, as shown in fig. 2, the orthogonal projection of the common electrode 16 on the first substrate 5 does not overlap with the scan line 12, and the common electrode 16 is in contact with the first substructure 14.
In some embodiments, as shown in fig. 2, the orthogonal projection of the pixel electrode 17 on the first substrate 5 does not overlap with the scan line 12.
In the implementation, the patterns of the film layers of the array substrate and the opposite substrate are as shown in fig. 3.
In some embodiments, as shown in fig. 3, the pixel electrode 17 includes a plurality of stripe structures 21 extending in the third direction; an included angle between the third direction and the first direction X and an included angle between the third direction and the second direction Y are both larger than 0.
In some embodiments, as shown in fig. 2, each of the first retaining wall structure 8 and the second retaining wall structure 9 includes a strip structure 21.
In specific implementation, the pixel electrodes correspond to the sub-pixels one by one, and the array substrate further comprises Thin Film Transistors (TFTs) electrically connected with the pixel electrodes in one-to-one correspondence. As shown in fig. 3. The gate G of the thin film transistor TFT is disposed in the same layer as the scan line 12 and the first substructure 14, and the source S and the drain D of the thin film transistor TFT are disposed in the same layer as the second substructure 15 and the data line 13. If the thin film transistor is a top gate structure, the active layer 27 of the thin film transistor is located between the first substrate and the gate G.
In some embodiments, as shown in fig. 3, the array substrate includes a plurality of bulk common electrodes 16. In specific implementation, the common electrodes are loaded with the same voltage signal, and the common electrodes 16 corresponding to two adjacent rows of sub-pixels are electrically connected with the same common electrode line 28, so that the wiring space can be saved. The common electrode line 28 is in contact with the common electrode 16, the common electrode line 28 is disposed on the same layer as the scanning line 12, the common electrodes on both sides of the scanning line 12 are electrically connected to the common electrode line 28 through a first connection electrode 29 and a second connection electrode 30, wherein the first connection electrode 29 is disposed on the same layer as the pixel electrode 17, the second connection electrode 30 is disposed on the same layer as the scanning line 12, and the second connection electrode 30 is disposed on the side of the scanning line 12 away from the common electrode line 28. On the side of the scan line 12 facing the common electrode line 28, the area where the common electrode line 28 contacts the common electrode 16 may be used as the first substructure 14.
In some embodiments, the supporting portions correspond to the retaining wall structures one to one. In a specific implementation, the multiple supporting parts include, for example, multiple main supporting parts and multiple auxiliary supporting parts, the main supporting parts have a thickness greater than that of the auxiliary supporting parts, and the auxiliary supporting parts serve as auxiliary supporting parts. The supporting part and the retaining wall structure correspond to each other one by one, namely the retaining wall structures are arranged on the two sides of the main supporting part and the auxiliary supporting part. Therefore, the main supporting part and the auxiliary supporting part can be blocked, the main supporting part and the auxiliary supporting part are prevented from sliding to the opening area of the sub-pixel to scratch the film layer in the area, and poor display caused by the fact that liquid crystal in the scratched area cannot be aligned is avoided.
In some embodiments, as shown in fig. 1, the retaining wall structure 7 includes two first retaining wall structures 8 symmetrically disposed with respect to the scanning line 12, and the retaining wall structure 7 includes two second retaining wall structures 9 symmetrically disposed with respect to the scanning line 12. The centers of the first retaining wall structure 8, the second retaining wall structure 9 and the supporting portion 4 are located on a straight line in the second direction Y.
Of course, in the specific implementation, as shown in fig. 3, the two first retaining wall structures 8 may also be disposed asymmetrically, and the two second retaining wall structures 9 may also be disposed asymmetrically. As long as the orthographic projection of the first retaining wall structure 8, the second retaining wall structure 9 and the supporting part 4 on the first substrate base plate has opposite regions in the second direction Y, the purpose of blocking the sliding of the supporting part by the retaining wall structures can be achieved.
In some embodiments, as shown in fig. 1, the orthogonal projection of the support portion 4 on the first substrate base is octagonal.
In a specific embodiment, the orthographic projection of the support portion on the first substrate may have another shape such as a rectangle or a circle.
In some embodiments, as shown in fig. 2, the area of the cross section of the support portion 4 parallel to the direction of the first substrate base 5 is gradually reduced in the direction in which the second substrate base 22 is directed to the first substrate base 5.
In the implementation, the areas of the cross sections of the support portions parallel to the direction of the first substrate base plate may be the same in the direction in which the second substrate base plate points to the first substrate base plate.
Next, the relevant dimensions of the support, the first substructure and the second substructure will be exemplified. The thickness of the support portion is, for example, 3.8 micrometers, and the maximum width of the surface of the support portion on the side close to the first substrate base plate is 18 micrometers. In the second direction Y, the widths of the first substructure and the second substructure are both 5 micrometers; in the first direction X, the lengths of the first and second substructures are both 20 micrometers. The width l5 of the first light-shielding layer in the second direction Y is about 45 micrometers to 50 micrometers. In a specific implementation, a distance l3 between an orthogonal projection of the first substructure on the first substrate and an orthogonal projection of the scan line on the first substrate is greater than a distance l4 between an orthogonal projection of the first substructure on the first substrate and an orthogonal projection of the second substructure on the first substrate, where l3 is, for example, 11 micrometers, and l4 is, for example, 4 micrometers. The distance between the plane of the surface of the first retaining wall structure close to the liquid crystal layer and the plane of the support part close to the first substrate base plate is 0.08 micrometer, and the distance between the plane of the surface of the second retaining wall structure close to the liquid crystal layer and the plane of the support part close to the first substrate base plate is 0.24 micrometer.
Next, the test results of the sliding distance of the pressure-supporting part of the display panel will be described. Fig. 4 shows the test results of the sliding distances of the pressure-supporting portions of different display panels, where a curve is a curve of the sliding distance of the pressure-supporting portions of the display panel including the first retaining wall structure and the second retaining wall structure provided by the present application; the curve b is a pressure-supporting part sliding distance curve of the display panel only comprising the first retaining wall structure; the curve c is a pressure-supporting part sliding distance curve of the display panel without the retaining wall structure; d is the shielding distance of the light shielding layer, the distances of the display panels corresponding to a, b and c are all 45 micrometers, and the thickness of the display panel supporting parts corresponding to a, b and c, the maximum width of the surface close to the array substrate and other dimensions are all the same. The thickness of the first retaining wall structure included in the display panel corresponding to the curve b is larger than that of the second retaining wall structure in the display panel corresponding to the curve a. It should be noted that, the pressure-sliding distance test of the display panel must satisfy 10 kilograms of force (kg), that is, when the pressure is 10kg, the sliding distance of the supporting portion does not exceed the shielding distance of the light shielding layer, so as to satisfy the test requirement. For the display panel without the retaining wall structure, as shown by a c curve, when the pressure is 10kg, the sliding distance of the supporting part exceeds 56 micrometers and exceeds the shielding distance of the light shielding layer, that is, the scratch distance of the alignment layer far exceeds the shielding distance of the light shielding layer, the alignment layer in the sub-pixel opening area is scratched, and the red and blue bright spots are poor, so that the test requirement cannot be met; as shown by the curve b, when the pressure is greater than 10kg, the sliding distance of the support part does not exceed 56 μm, that is, the shielding distance of the light shielding layer is not exceeded, and the defect of red and blue bright spots does not occur, however, in the test with the pressure of 12kg, when the support part passes through the first retaining wall structure in the process of recovering to the initial state after the external force is cancelled, the compression amount of the support part is about 30%, and the support part cannot automatically recover to the initial position, so that the thickness of the area display panel of the support part is increased, and the defect of snowflakes is easily caused. As shown by the curve a, for the test with the pressure of 11kg, the sliding distance of the supporting part is 27 microns, the shielding distance of the shading layer is not exceeded, and the defect of red and blue bright spots does not occur. And when the supporting part passes through the first retaining wall structure and the second retaining wall structure in the process of recovering to the initial state after the external force is cancelled, the compression amount of the supporting part is respectively less than 10 percent and 20 percent, the condition that the supporting part cannot recover to the initial state cannot occur, and the snowflake defect cannot occur.
A display device provided in an embodiment of the present application, as shown in fig. 5, includes a display panel 31 provided in an embodiment of the present application.
In some embodiments, as shown in fig. 5, the display device further includes a backlight module 32, and the display panel 31 is located at a light emitting side of the backlight module 32.
The display device provided by the embodiment of the application is as follows: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. Other essential components of the display device are understood by those skilled in the art, and are not described herein or should not be construed as limiting the present application. The display device can be implemented by referring to the above embodiments of the display panel, and repeated descriptions are omitted.
To sum up, in the display panel and the display device provided by the embodiment of the disclosure, the retaining wall structure is disposed on the array substrate, and the arrangement direction of the retaining wall structure and the supporting portion is perpendicular to the extending direction of the signal line, so that the retaining wall structure and the supporting portion can be used to prevent the supporting portion from sliding to the opening area of the sub-pixel to scratch the film layer in the area, and the liquid crystal in the scratched area can not be aligned to generate poor display. Between the opening district of supporting part and subpixel, retaining wall structure includes first retaining wall structure, second retaining wall structure, blocks the supporting part through two sets of retaining wall structures promptly and slides on the slip path of supporting part, and first retaining wall structure, the thickness of second retaining wall structure all need not too thick and also can realize good effect of blockking, avoids the supporting part to slide retaining wall structure department the big unable recovery of compression volume and leads to the increase of supporting part place position display panel thickness, avoids appearing snowflake demonstration bad. And, because the maximum width of the first recess between first barricade structure and the current structure of second, the maximum width of the second recess between first barricade structure and the signal line corresponding region all is less than the maximum width that the supporting part is close to first substrate base plate side surface to even if the supporting part slides and also can not block in first recess, second recess department and can't resume, further avoid the supporting part can't resume and lead to the increase of the thickness of the display panel of supporting part place position, avoid appearing snowflake and show badly.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (14)
1. A display panel, comprising: the liquid crystal display panel comprises an array substrate, an opposite substrate, a liquid crystal layer and a plurality of supporting parts, wherein the array substrate and the opposite substrate are oppositely arranged;
the array substrate includes: the first substrate base plate is positioned on the signal lines and the retaining wall structures on one side, facing the liquid crystal layer, of the first substrate base plate;
the retaining wall structure includes: the signal line comprises two first retaining wall structures and second retaining wall structures, wherein the two first retaining wall structures are respectively positioned at two sides of the signal line, and the second retaining wall structures are respectively positioned at two sides of the signal line;
when the supporting part is located at an initial position, the orthographic projection of the supporting part on the first substrate and the orthographic projection of the retaining wall structures on the first substrate are not overlapped, and the area of the orthographic projection of the supporting part on the first substrate and the area of the two first retaining wall structures between the orthographic projection of the first substrate are overlapped;
a first groove is arranged between the first retaining wall structure and the second retaining wall structure, and a second groove is arranged between the first retaining wall structure and the region corresponding to the signal line; in a direction perpendicular to the extension direction of the signal line, the maximum width of the first groove is smaller than the maximum width of the surface of the support part on one side close to the first substrate base plate, and the maximum width of the second groove is smaller than the maximum width of the surface of the support part on one side close to the first substrate base plate.
2. The display panel according to claim 1, wherein the thickness of the second bank structure is greater than the thickness of the first bank structure in a direction perpendicular to the first substrate base;
the distance between the plane of the surface of the second retaining wall structure facing the liquid crystal layer and the plane of the surface of the support part facing the opposite substrate is smaller than the thickness of the support part in the direction perpendicular to the first substrate.
3. The display panel according to claim 2, wherein a ratio of a distance between a plane of a surface of the second barrier structure on a side facing the liquid crystal layer and a plane of a surface of the support portion on a side facing the opposite substrate to a thickness of the support portion in a direction perpendicular to the first substrate is greater than 80%.
4. The display panel according to claim 3, wherein the ratio of the distance between the plane of the surface of the first wall structure facing the liquid crystal layer and the plane of the surface of the support portion facing the opposite substrate to the thickness of the support portion in the direction perpendicular to the first substrate is greater than 90%.
5. The display panel according to any one of claims 1 to 4, wherein the plurality of signal lines are a plurality of scanning lines extending in a first direction;
the orthographic projection of the supporting part on the first substrate base plate falls into the orthographic projection of the scanning line on the first substrate base plate.
6. The display panel according to claim 5, wherein the array substrate further comprises a plurality of data lines extending in a second direction; the second direction intersects the first direction; the scanning lines are positioned between the first substrate base plate and the data lines in a direction perpendicular to the first substrate base plate;
the first retaining wall structure includes: with the first substructure that the scanning line layer set up, second retaining wall structure includes: a second substructure disposed on the same layer as the data line;
the thickness of the second substructure is greater than the thickness of the first substructure in a direction perpendicular to the first substrate base plate.
7. The display panel of claim 6, wherein the array substrate further comprises: a common electrode between the first substrate and the scan line, a gate insulating layer between the scan line and the data line, a passivation layer between the data line and the liquid crystal layer, a plurality of pixel electrodes between the passivation layer and the liquid crystal layer, and a first alignment layer between the pixel electrodes and the liquid crystal layer;
first retaining wall structure and second retaining wall structure still includes: the common electrode, the gate insulating layer, the passivation layer, the pixel electrode, and the first alignment layer.
8. The display panel according to claim 6 or 7, wherein in the second direction, a distance between an orthographic projection of the first substructure on the first substrate and an orthographic projection of the second substructure on the first substrate is smaller than a maximum width of a side surface of the support portion close to the first substrate, and a distance between the orthographic projection of the first substructure on the first substrate and an orthographic projection of the scan line on the first substrate is smaller than a maximum width of a side surface of the support portion close to the first substrate.
9. The display panel according to claim 8, wherein in the second direction, a distance between an orthographic projection of the first substructure on the first substrate and an orthographic projection of the second substructure on the first substrate is smaller than a distance between an orthographic projection of the first substructure on the first substrate and an orthographic projection of the scan line on the first substrate.
10. The display panel according to claim 8, wherein an orthographic projection of the common electrode on the first substrate does not overlap with the scan line, and the common electrode is in contact with the first substructure.
11. The display panel according to claim 8, wherein an orthogonal projection of the pixel electrode on the first substrate does not overlap with the scan line.
12. The display panel according to claim 11, wherein the pixel electrode includes a plurality of stripe structures extending in a third direction; an included angle between the third direction and the first direction and an included angle between the third direction and the second direction are both larger than 0;
the first retaining wall structure and the second retaining wall structure comprise the strip-shaped structures.
13. The display panel according to any one of claims 1 to 4, 6, 7, and 9 to 12, wherein the counter substrate includes: a second substrate, a light-shielding layer located on one side of the second substrate facing the liquid crystal layer; the light-shielding layer includes: a plurality of first open areas;
the orthographic projection of the supporting part on the second substrate falls into the orthographic projection of the light shielding layer on the second substrate;
the retaining wall structure is in the orthographic projection of second substrate base plate falls into the light shield layer is in the orthographic projection of second substrate base plate.
14. A display device comprising the display panel according to any one of claims 1 to 13.
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| CN202311075386.8A CN117055267A (en) | 2022-08-04 | 2022-08-04 | Display panel and display device |
| CN202210931426.3A CN115202107B (en) | 2022-08-04 | 2022-08-04 | Display panel and display device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140146278A1 (en) * | 2012-11-23 | 2014-05-29 | Samsung Display Co., Ltd. | Nano crystal display device having improved microcavity structure |
| CN106353930A (en) * | 2016-10-31 | 2017-01-25 | 上海天马微电子有限公司 | Display panel and electronic equipment |
| CN106940495A (en) * | 2017-03-30 | 2017-07-11 | 南京中电熊猫平板显示科技有限公司 | A kind of liquid crystal display panel and its manufacture method |
| US20170351141A1 (en) * | 2016-06-03 | 2017-12-07 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
| CN114488625A (en) * | 2022-02-28 | 2022-05-13 | 合肥京东方显示技术有限公司 | Display panel and display device |
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2022
- 2022-08-04 CN CN202311075386.8A patent/CN117055267A/en active Pending
- 2022-08-04 CN CN202210931426.3A patent/CN115202107B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140146278A1 (en) * | 2012-11-23 | 2014-05-29 | Samsung Display Co., Ltd. | Nano crystal display device having improved microcavity structure |
| US20170351141A1 (en) * | 2016-06-03 | 2017-12-07 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
| CN106353930A (en) * | 2016-10-31 | 2017-01-25 | 上海天马微电子有限公司 | Display panel and electronic equipment |
| CN106940495A (en) * | 2017-03-30 | 2017-07-11 | 南京中电熊猫平板显示科技有限公司 | A kind of liquid crystal display panel and its manufacture method |
| CN114488625A (en) * | 2022-02-28 | 2022-05-13 | 合肥京东方显示技术有限公司 | Display panel and display device |
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| CN117055267A (en) | 2023-11-14 |
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