CN113703229B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113703229B CN113703229B CN202110877863.7A CN202110877863A CN113703229B CN 113703229 B CN113703229 B CN 113703229B CN 202110877863 A CN202110877863 A CN 202110877863A CN 113703229 B CN113703229 B CN 113703229B
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- spacer
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- display panel
- groove
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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
Abstract
The application discloses a display panel and a display device, wherein the display panel comprises a first substrate, a second substrate and a spacer, the first substrate and the second substrate are arranged in a box pair mode, the spacer is arranged between the first substrate and the second substrate, one end of the spacer is arranged on the second substrate, the other end of the spacer faces the first substrate, one side, close to the second substrate, of the first substrate is provided with an accommodating groove, and the accommodating groove and the spacer are correspondingly arranged; be provided with spacing platform in the holding tank, the one end setting of shock insulator is in the holding tank, and the butt in spacing platform. This application prevents through above mode that the shock insulator slides, avoids display panel to show unusually.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
In the existing liquid crystal display technology, a display panel is generally formed by arranging a color film substrate and an array substrate in a box-to-box manner and filling liquid crystal between the color film substrate and the array substrate, in order to ensure the stability of liquid crystal gaps in various regions of the display panel, a box body is supported mainly by arranging a spacer between the color film substrate and the array substrate, one end of the spacer is generally fixedly arranged on the color film substrate or the array substrate, and the other end of the spacer is abutted against the array substrate or the color film substrate, but one end abutted against the array substrate or the color film substrate is freely movable, and when the spacer is extruded by external force in the process of carrying or using, the spacer can slide, so that the support stability of the color film substrate and the array substrate can be influenced, and further, the display abnormality of the display panel can be caused.
Disclosure of Invention
The application aims at providing a display panel and a display device, which prevent a spacer from sliding and avoid display abnormity of the display panel.
The application discloses a display panel, which comprises a first substrate, a second substrate and a spacer, wherein the first substrate and the second substrate are arranged in a box-to-box manner, the spacer is arranged between the first substrate and the second substrate, one end of the spacer is arranged on the second substrate, the other end of the spacer faces the first substrate, one side of the first substrate, which is close to the second substrate, is provided with an accommodating groove, and the accommodating groove is arranged corresponding to the spacer; the accommodating groove is internally provided with a limiting table, one end of the spacer is arranged in the accommodating groove and is abutted against the limiting table.
Optionally, the first substrate is a color film substrate, the second substrate is an array substrate, and the array substrate is disposed on one side of the light incident surface of the display panel; the accommodating groove is formed in one side, close to the color film substrate, of the array substrate.
Optionally, the accommodating groove includes a via hole, the array substrate includes a thin film transistor, the thin film transistor includes a drain electrode and a passivation layer, and the via hole is disposed on the passivation layer and exposes the drain electrode; the limiting table is arranged on the inner wall of the through hole, and the opening width of the through hole on the passivation layer is larger than the width of the spacer; the width of the limiting table is smaller than the opening width of the via hole.
Optionally, the array substrate includes a thin film transistor, the thin film transistor includes a passivation layer, the receiving groove includes a groove, the groove is disposed on the passivation layer, the width of the groove is greater than the width of the spacer, and the width of the limiting table is less than the width of the groove.
Optionally, the limiting table at least comprises a first limiting table and a second limiting table, the first limiting table and the second limiting table are symmetrically arranged on two sides of the inner wall of the accommodating groove, and a gap is formed between the first limiting table and the second limiting table.
Optionally, the first substrate is a color film substrate, the second substrate is an array substrate, and the color film substrate is disposed on one side of the light incident surface of the display panel; the accommodating groove is formed in one side, close to the array substrate, of the color film substrate.
Optionally, the limiting table is arranged around the inner wall of the accommodating groove, and the width of the limiting table is smaller than one half of the width of the accommodating groove.
Optionally, a first chamfer structure is arranged at one end of the limiting table, which is in contact with the spacer, a second chamfer structure is arranged at one end of the spacer, which is in contact with the limiting table, and the first chamfer structure is matched with the second chamfer structure in shape.
Optionally, a protrusion is arranged at one end of the spacer, which is in contact with the limiting table, and the width of the protrusion is smaller than the relative distance between the first limiting table and the second limiting table.
The application also discloses a display device, including backlight unit and this application discloses an arbitrary display panel, backlight unit sets up one side of display panel's income plain noodles.
For the scheme that the spacer abuts against the array substrate or the color film substrate and slides to cause abnormal display of the display panel under the action of an external force, the display panel of the application limits the movement range of the spacer in the accommodating groove by arranging the accommodating groove at the position of the first substrate corresponding to the spacer, and avoids the spacer sliding to damage the alignment film or the pixel electrode; meanwhile, a limiting table is further arranged in the accommodating groove, a height difference is formed between the accommodating groove and the limiting table, one end of the spacer abuts against the limiting table, and the supporting stability of the spacer is enhanced; and, the spacer does not directly contact with the bottom of holding tank, and spacing platform still is formed with the cavity with the holding tank bottom promptly, and when display panel received external force or carried out pressure test, the cavity can also make the stress that the spacer received in time release, has ensured the supporting effect of spacer, and then has guaranteed the box stability to between two base plates, avoids display panel to appear showing unusually.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic diagram of a first embodiment of a display panel of the present application;
FIG. 2 is a top view of a second embodiment of a display panel of the present application;
FIG. 3 is a top view of a third embodiment of a display panel of the present application;
FIG. 4 is a schematic view of a fourth embodiment of a display panel of the present application;
FIG. 5 is a schematic view of a fifth embodiment of a display panel of the present application;
FIG. 6 is a schematic view of a sixth embodiment of a display panel of the present application;
FIG. 7 is a schematic view of a seventh embodiment of a display panel of the present application;
fig. 8 is a schematic diagram of an embodiment of a display device of the present application.
100, a display device; 200. a display panel; 210. a first substrate; 211. accommodating grooves; 212. a limiting table; 213. a first limit table; 214. a second limit table; 215. a first chamfer structure; 220. a second substrate; 230. a spacer; 231. a protrusion; 232. a second chamfer structure; 240. a color film substrate; 241. a black matrix; 250. an array substrate; 251. a thin film transistor; 252. a via hole; 253. a semiconductor layer; 254. a gate electrode; 255. a source electrode; 256. a drain electrode; 257. a passivation layer; 258. a pixel electrode; 259. a planarization layer; 300. A backlight module is provided.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
The present application is described in detail below with reference to the figures and alternative embodiments.
Fig. 1 is a schematic diagram of a first embodiment of a display panel of the present application, and as can be seen from fig. 1, as the first embodiment of the present application, a display panel 200 is disclosed, which includes a first substrate 210, a second substrate 220, and a spacer 230, where the first substrate 210 and the second substrate 220 are arranged in a pair, the spacer 230 is arranged between the first substrate 210 and the second substrate 220, one end of the spacer 230 is arranged on the second substrate 220, the other end faces the first substrate 210, one side of the first substrate 210 close to the second substrate 220 is provided with an accommodating groove 211, and the accommodating groove 211 is arranged corresponding to the spacer 230; the accommodating groove 211 is internally provided with a limit table 212, and one end of the spacer 230 is arranged in the accommodating groove 211 and abuts against the limit table 212.
For the scheme that the spacer 230 abuts against the array substrate 250 or the color filter substrate 240 and slides when an external force is applied to cause the display panel 200 to display an abnormal display, in the display panel 200 of the present application, the accommodating groove 211 is disposed at the position of the first substrate 210 corresponding to the spacer 230, the spacer 230 is disposed in the accommodating groove 211, so as to limit the moving range of the spacer 230 in the accommodating groove 211 and prevent the spacer 230 from sliding and damaging the alignment film or the pixel electrode; meanwhile, a limiting table 212 is further arranged in the accommodating groove 211, a height difference is further formed between the accommodating groove 211 and the limiting table 212, one end of the shock insulator 230 abuts against the limiting table 212, and the supporting stability of the shock insulator 230 is enhanced; and, the spacer 230 does not directly contact with the bottom of the holding tank 211, namely the bottom of the limiting table 212 and the holding tank 211 are also provided with a cavity, when the display panel 200 is subjected to external force or pressure test, the cavity can also enable the stress received by the spacer 230 to be released in time, the supporting effect of the spacer 230 is ensured, the stability of the box between the two substrates is further ensured, and the display abnormality of the display panel 200 is avoided.
As shown in fig. 1, the first substrate 210 is a color filter substrate 240, the second substrate 220 is an array substrate 250, the array substrate 250 is disposed on one side of the light incident surface of the display panel 200, and the receiving groove 211 is disposed on one side of the array substrate 250 close to the color filter substrate 240. In this embodiment, the display panel 200 is a liquid crystal display panel 200, a liquid crystal layer (not shown in the figure) is filled between the array substrate 250 and the color filter substrate 240, the array substrate 250 is disposed on one side of the light incident surface of the display panel 200, generally, the array substrate 250 includes a light-transmitting area and a light-shielding area, the accommodating groove 211 is disposed in the light-shielding area of the array substrate 250, and further, after the array substrate 250 and the color filter substrate 240 are aligned, the spacer 230 is located in the light-shielding area of the array substrate 250, thereby ensuring the aperture ratio of the display panel 200.
Moreover, the projection area of the receiving groove 211 on the array substrate 250 is larger than the projection area of the spacer 230 on the array substrate 250, and a portion of the spacer 230 is embedded in the receiving groove 211, so that when the display panel 200 is subjected to an external force, a certain deformation space is formed, the spacer is not easy to slip out of the receiving groove 211, the moving range of the spacer 230 can be limited in the receiving groove 211, even if two substrates of the display panel 200 are pressed frequently, the spacer 230 cannot scratch the alignment film or the pixel electrode 258, and permanent light leakage is avoided.
Meanwhile, the position-limiting table 212 is further arranged in the accommodating groove 211, the height of the position-limiting table 212 is smaller than the depth of the accommodating groove 211, one end of the spacer 230 abuts against the position-limiting table 212, and the movement range of the spacer 230 is well limited in the accommodating groove 211 through the height difference formed between the accommodating groove 211 and the position-limiting table 212, so that the problem that the display panel 200 is abnormal in alignment due to the fact that the spacer 230 slides to a light-transmitting area and scratches an alignment film, or the display panel 200 is abnormal in alignment due to the fact that a pixel electrode 258 is scratched and the like is avoided, and the display panel 200 is abnormal in display; moreover, one end of the spacer 230 abuts against the limiting table 212, and the orthographic projection parts of the limiting table 212 and the spacer 230 on the array substrate 250 are overlapped, so that a certain contact area is formed at the abutting end of the spacer 230 and the limiting table 212, the supporting effect of the spacer 230 is ensured, and the stability of the display panel 200 to the box is improved.
Optionally, in this embodiment, the accommodating groove 211 includes a via hole 252, the array substrate 250 includes a thin film transistor 251, the thin film transistor 251 includes a drain electrode 256 and a passivation layer 257, the via hole 252 is disposed on the passivation layer 257 and exposes the drain electrode 256; the limiting platform 212 is arranged on the inner wall of the via hole 252, and the opening width of the via hole 252 on the passivation layer 257 is larger than the width of the spacer 230; the width of the limiting table 212 is smaller than the opening width of the via hole 252.
In this embodiment, the array substrate 250 includes a thin film transistor 251, where the thin film transistor 251 may have a bottom gate structure or a top gate structure, and the application takes the thin film transistor 251 as the top gate structure as an example, the thin film transistor 251 includes a drain electrode 256 and a passivation layer 257 disposed above the drain electrode 256, the receiving groove 211 may be a via hole 252 disposed on the passivation layer 257 and exposing the drain electrode 256, and the via hole 252 is used to connect the pixel electrode 258 and the drain electrode 256 of the thin film transistor 251; the limiting table 212 is disposed on the inner wall of the via hole 252, and the opening width of the via hole 252 on the passivation layer 257 is greater than the width of the spacer 230, so that the spacer 230 can fall into the via hole 252, and at the same time, the moving range of the spacer 230 is limited in the via hole 252, and the spacer 230 is prevented from sliding to other positions. Moreover, the spacer 230 does not directly contact the inner wall of the via hole 252, the problem of disconnection of the pixel electrode 258 at the sidewall of the via hole 252 is avoided, and a cavity is formed between the spacer 230 and the sidewall of the via hole 252, so that when the spacer 230 is subjected to an external force, the cavity can form a deformation space to release stress, thereby preventing the spacer 230 from being damaged due to an excessive acting force.
In addition, the limiting table 212 is arranged on the inner wall of the via hole 252, one end of the spacer 230 abuts against the limiting table 212, and the inherent height difference between the limiting table 212 and the via hole 252 further enables the spacer 230 not to easily slide out of the via hole 252, and meanwhile, the supporting effect of the spacer 230 is also ensured. Moreover, the width of the limiting table 212 is set to be smaller than the opening width of the via hole 252, so that a recessed area is formed in the central position inside the limiting table 212 and the via hole 252, namely, an area where the orthographic projections of the spacer 230 and the limiting table 212 are not overlapped, stress on the abutting part of the spacer 230 and the limiting table 212 can be released in time by the recessed area, and the risk of line breakage of the pixel electrode 258 at the limiting table 212 is reduced.
Optionally, the width of the limiting table 212 is set to be less than or equal to one half of the opening width of the via hole 252 and greater than one third of the opening width of the via hole 252, and the width of the spacer 230 is set to be 0.6-0.8 times of the opening width of the via hole 252, so that a certain contact area between the limiting table 212 and the spacer 230 is ensured, and the supporting effect of the spacer 230 is ensured.
The thin film transistor 251 further includes a gate electrode 254, an insulating layer, a source electrode 255, a semiconductor layer 253, a planarization layer 259, and the like, and in an actual manufacturing process, the limiting platform 212 and the via hole 252 may be formed by one process, and a step surface is directly formed in the via hole 252 by using a halftone mask process or a gray scale process, so that the limiting platform 212 is formed, thereby saving a process, reducing a manufacturing cost, and improving a production efficiency. The via 252 and the stopper 212 may be formed separately, and after the via 252 is formed, the stopper 212 may be formed by depositing the same material on the sidewall of the via 252.
Of course, the limiting table 212 may not be disposed on the sidewall of the via hole 252, the limiting table 212 may be disposed at the center of the via hole 252, the width of the limiting table 212 may be set to be one half of the opening width of the via hole 252, and the height of the limiting table 212 in the extending direction from the drain electrode 256 to the top of the via hole 252 is set to be less than or equal to one half of the depth from the via hole 252 to the surface of the drain electrode 256 and greater than one third of the depth from the via hole 252 to the surface of the drain electrode 256, so that a cavity is formed between the limiting table 212 and the sidewall of the via hole 252, which may also ensure the stability of the spacer 230, prevent the spacer 230 from sliding, and also avoid the pixel electrode 258 from being broken, thereby improving the stability of the display panel 200.
In addition, the limiting table 212 is directly disposed in the via hole 252 to prevent the spacer 230 from sliding, and ensure the supporting stability of the spacer 230, which are all improvements in the light-shielding region of the array substrate 250, without additional increase of the light-shielding region, and also ensure the aperture ratio of the display panel 200.
Fig. 2 is a plan view of a second embodiment of the display panel of the present application, and referring to fig. 2, in order to make the stress on the position of the position-limiting table 212 uniform and ensure the uniformity of the box thickness of the two substrates, the position-limiting table 212 is disposed around the inner wall of the receiving groove 211, and the width of the position-limiting table 212 is less than one-half of the width of the receiving groove 211. In this embodiment, the limiting table 212 is a closed structure surrounding the side wall of the accommodating groove 211 by one circle, and the limiting table 212 coincides with the centers of the accommodating groove 211 and the spacer 230, so that when the second end of the spacer 230 abuts against the limiting table 212, the spacer 230 is stressed more uniformly at each position of the limiting table 212, and the stability of the spacer 230 is further improved.
Meanwhile, when the accommodating groove 211 is the through hole 252, the problem of wire breakage caused by excessive stress in the local area of the pixel electrode 258 on the limiting table 212 is also avoided; meanwhile, the projection area of the accommodating groove 211 is larger than that of the spacer 230, a gap is formed between the spacer 230 and the side wall of the accommodating groove 211, the pixel electrode 258 can be prevented from being broken, and a certain buffer space is formed for the spacer 230, so that when the display panel 200 is pressed, the spacer 230 has a certain deformation space to release stress.
In addition, the width of spacing platform 212 is less than the width of holding tank 211, and spacing platform 212 forms the cavity along via hole 252 central line position and via hole 252 bottom, and when the cavity can be with spacing platform 212 and shock insulator 230 butt, the effort that the contact surface received in time releases, prevents shock insulator 230 long-time and spacing platform 212 butt, leads to the problem of spacing platform 212 department pixel electrode 258 broken string, has improved display panel 200's stability.
Fig. 3 is a top view of a third embodiment of the display panel of the present application, and referring to fig. 3, in order to disperse the abutting pressure of the spacer 230 against the surface of the limiting table 212, at least two limiting tables 212 are provided, the limiting table 212 at least includes a first limiting table 213 and a second limiting table 214, the first limiting table 213 and the second limiting table 214 are symmetrically provided on two sides of the inner wall of the receiving groove 211, and a gap is provided between the first limiting table 213 and the second limiting table 214.
In this embodiment, the number of the limiting tables 212 is at least two, that is, the first limiting table 213 and the second limiting table 214 are arranged, and the first limiting table 213 and the second limiting table 214 are symmetrically arranged along the inner wall of the accommodating groove 211, so that when each limiting table 212 abuts against the spacer 230, the stress is uniform, and the stability between the two substrates is ensured; in addition, a gap is formed between the first limiting table 213 and the second limiting table 214, that is, a gap is formed between the orthographic projections of the adjacent limiting tables 212 on the first substrate 210, so that a cavity is formed between the adjacent limiting tables 212, the force received when the spacer 230 abuts against the limiting tables 212 is released in time through each cavity, stress concentration is prevented, meanwhile, each cavity can also form a deformation space of the spacer 230, when the spacer 230 deforms under stress, the protrusion 231 is arranged at each cavity, and then one end, close to the limiting tables 212, of the spacer 230 is clamped into the cavity, so that the friction force of the end face of the spacer 230 is increased, and the spacer 230 is prevented from further sliding.
In addition, the first limiting table 213 and the second limiting table 214 may also be disposed at a certain side close to the sidewall of the receiving groove 211, that is, the first limiting table 213 and the second limiting table 214 are disposed at a certain section along the sidewall of the receiving groove 211, the spacer 230 may be disposed at a side close to the limiting table 212 and abut against the first limiting table 213 and the second limiting table 214, so as to ensure a certain contact area when the spacer 230 abuts against the limiting table 212, ensure the standing stability of the spacer 230 on the limiting table 212, and further improve the supporting effect of the spacer 230, so that when the display panel 200 receives an external force, the spacer 230 may tilt towards a side of the receiving groove 211 where the limiting table 212 is not disposed, further limit the sliding of the spacer 230, avoid the spacer 230 from scratching the alignment film or the pixel electrode 258, and improve the stability of the display panel 200.
Optionally, when the accommodating groove 211 is the via hole 252, the first limiting table 213 and the second limiting table 214 are disposed on a side close to the pixel area, so that even if the spacer 230 slides, the spacer can tilt to a side away from the pixel area, and the display effect of the pixel area is not affected, only a part of the pixel electrode 258 is disposed on a surface of the first limiting table 213, where the second limiting table 214 abuts against the spacer 230, and a gap is further disposed between the first limiting table 213 and the second limiting table 214, and the pixel electrode 258 covers the gap, so that even if the pixel electrode 258 at the limiting table 212 is scratched, the pixel electrodes 258 at the gap and other positions in the via hole 252 are still connected, such as the position of the sidewall of the via hole 252, and the like, and the display effect of the display panel 200 is not affected.
Fig. 4 is a schematic view of a fourth embodiment of the display panel of the present application, and referring to fig. 4, in order to prevent the spacer 230 from sliding, a protrusion 231 is disposed at one end of the spacer 230 contacting the position-limiting table 212, and a width of the protrusion 231 is smaller than a relative distance between the first position-limiting table 213 and the second position-limiting table 214. In this embodiment, a protrusion 231 is disposed at one end of the spacer 230 contacting the limiting platform 212, the width of the protrusion 231 is smaller than the distance between the limiting platforms 212, the protrusion 231 protrudes toward one side of the bottom of the groove, and the protruding length is greater than or equal to one half of the height of the limiting platform 212, when the spacer 230 slides under pressure, the protrusion 231 abuts against the side edge between the limiting platforms 212, so that the spacer 230 is less prone to sliding, and the anti-sliding effect of the spacer 230 is further improved.
If the abutting pressure of the limiting table 212 is further dispersed, the protrusion 231 can be directly abutted to the bottom of the accommodating groove 211, that is, the length of the protrusion 231 can be set to be equal to the height of the limiting table 212, so that the protrusion 231 can not only prevent the spacer 230 from sliding, but also bear a part of the abutting pressure, and the supporting effect of the spacer 230 is better.
Fig. 5 is a top view of a fifth embodiment of the display panel of the present application, and referring to fig. 5, it can be seen that the receiving groove 211 can also be disposed on other structures of the array substrate 250, the array substrate 250 includes a tft 251, the tft 251 includes a passivation layer 257, the receiving groove 211 includes a groove, the groove is disposed on the passivation layer 257, a width of the groove is greater than a width of the spacer 230, and a width of the position-limiting stage 212 is smaller than the width of the groove.
In this embodiment, the receiving groove 211 is a groove, the groove is disposed on the passivation layer 257, generally, a planarization layer 259 is further disposed on the passivation layer 257, the groove may extend from the passivation layer 257 to the surface of the planarization layer 259, and the width of the groove is set to be greater than the width of the spacer 230, the width of the limiting table 212 is smaller than the width of the groove, so that one end of the spacer 230 is located in the groove and abuts against the limiting table 212, and the length of the limiting table 212 in the extending direction of the bottom of the groove is set to be less than or equal to one half of the depth of the groove, thereby preventing the spacer 230 from sliding out of the groove; meanwhile, the width of the groove is set to be 1.5 times of the width of one end of the spacer 230 close to the limiting table 212, so that the groove is ensured to have enough deformation space, and the extrusion stress is released.
Moreover, the width of the limiting table 212 is set to be greater than or equal to one half of the width of the second end of the spacer 230 and smaller than one half of the width of the groove, so that a sufficient contact area between the spacer 230 and the limiting table 212 is ensured, a cavity is formed between the bottom of the groove and the position under the second end of the spacer 230, when the spacer 230 is pressed, a certain side of the second end of the spacer 230 falls into the cavity, the spacer 230 is further prevented from sliding, and the anti-skid effect is enhanced.
Thus, the groove may be disposed near the via 252, that is, in the channel region of the tft 251, and the topography of the channel region may be used to ensure that the groove has a sufficient depth, which may avoid the need for the passivation layer 257 to be thicker when disposed at other positions. In addition, the limiting table 212 can be arranged to surround the side wall of the groove for a circle, so that the stress at each position of the limiting table 212 is uniform; or at least two limit platforms 212 can be arranged to be uniformly arranged to disperse the opposite pressure; the groove may also be disposed at the center of the groove, or may be disposed in other manners, which are not described herein.
Fig. 6 is a schematic view of a display panel according to a sixth embodiment of the present application, and referring to fig. 6, the first substrate 210 is a color filter substrate 240, the second substrate 220 is an array substrate 250, and the color filter substrate 240 is disposed on one side of the light incident surface of the display panel 200; the receiving groove 211 is disposed on a side of the color filter substrate 240 close to the array substrate 250.
In this embodiment, the first substrate 210 is a color filter substrate 240, the second substrate 220 is an array substrate 250, the color filter substrate 240 is disposed on one side of the light incident surface of the display panel 200, the receiving groove 211 may be a groove, one end of the spacer 230 is fixedly disposed on the array substrate 250, the other end of the spacer is disposed on one side close to the color filter substrate 240, a black matrix 241 is disposed on one side of the color filter substrate 240 close to the array substrate 250, the black matrix 241 is disposed corresponding to the light-shielding region of the array substrate 250, the groove may be disposed on the black matrix 241, and meanwhile, a spacing block 212 is disposed in the groove, so that a height difference is formed between the spacing block 212 and the upper surface of the groove, and the spacer 230 is prevented from sliding. The stop 212 may be made of the black matrix 241 material, or may be made of other materials, such as the same material as the planarization layer 259.
In addition, to ensure that the groove can accommodate part of the spacer 230, the spacer 230 can be effectively prevented from sliding or sliding out of the groove, the thickness of the black matrix 241 can be larger, for example, the height difference formed between the upper surface of the groove and the limiting table 212 is ensured, the height is greater than or equal to one fifth of the height of the spacer 230, the height is less than one third of the height of the spacer 230, and the like, the height difference formed between the upper surface of the groove and the limiting table 212 can also be set according to the relationship between the stress magnitude and the compression amount of the spacer 230, as long as the spacer 230 can be ensured not to slide out of the groove when being subjected to an external force.
Usually, a planarization layer 259 is further disposed between the color filter substrate 240 and the black matrix 241, a groove may be formed to extend from the surface of the black matrix 241 far from the color filter substrate 240 into the planarization layer 259, and the accommodating grooves 211 with different widths may be etched on the black matrix 241 and the planarization layer 259 respectively by using different thicknesses of the planarization layer 259 and the black matrix 241, so that the position-limiting stage 212 is formed between the bonding surfaces between the black matrix 241 and the planarization layer 259, and thus the black matrix 241 may not be thicker, and the manufacturing cost is reduced.
The black matrix 241 is located in a light shielding region of the display panel 200 and is used for shielding the thin film transistor 251, an overlapping region of the scan line and the data line, and the like on the array substrate 250, and the black matrix 241 is provided with a groove and a limiting table 212, so that the spacer 230 is prevented from sliding, and the aperture ratio of the display panel 200 is ensured.
Fig. 7 is a schematic diagram of a seventh embodiment of the display panel of the present application, and referring to fig. 7, in order to ensure a supporting effect between the spacer 230 and the limiting table 212 and prevent the spacer 230 from sliding, a first chamfer structure 215 is disposed at an end of the limiting table 212 contacting the spacer 230, a second chamfer structure 232 is disposed at an end of the spacer 230 contacting the limiting table 212, and the first chamfer structure 215 and the second chamfer structure 232 are matched in shape.
In this embodiment, the contact position between the spacer 230 and the limiting platform 212 is respectively provided with the first chamfer structure 215 and the second chamfer structure 232, the chamfer structure may be a straight chamfer or an arc chamfer, the chamfer structure is taken as an arc chamfer as an example, the first chamfer structure 215 and the second chamfer structure 232 may be arcs with the same radius, and are concave-convex matching structures, so that the surface of the spacer 230 abutted against the limiting platform 212 is seamlessly attached, the support stability of the spacer 230 is ensured, and meanwhile, when the spacer 230 is subjected to external force, the design of the arc can enable the spacer 230 to be in surface contact with the limiting platform 212, the anti-skidding effect is better, when the external force is removed, the arc surface can enable the spacer 230 to be quickly reset, and the stability between the two substrates is improved.
Certainly, the surfaces of the spacer 230 contacting the limiting table 212 may be all set to be flat, and the moving direction between the spacer 230 and the limiting table 212 is perpendicular to the force-bearing direction of the display panel 200 by the flat structure, so that the spacer 230 is not easy to slide, and the effect of preventing the spacer 230 from sliding is further achieved.
Meanwhile, the side wall of the accommodating groove 211 can be set to be an inclined plane, and the included angle between the side wall and the first substrate 210 is set to be 60-85 degrees, so that when the spacer 230 is under pressure, the spacer 230 is not easy to slide out due to the included angle, when the external force is removed, the inclined plane is set to play a certain guiding role, the second end of the spacer 230 slides along the extending direction of the inclined plane and is quickly abutted to the limiting table 212, so that the spacer 230 is quickly reset, and the supporting stability between the two substrates is ensured.
In addition, the surface that spacing platform 212 and spacer 230 contact is first contact surface, the surface that contacts with spacing platform 212 on the spacer 230 is the second contact surface, first contact surface and second contact surface are the curved surface, and the camber of first contact surface and second contact surface is the same, set up spacer 230 and spacing platform 212 into the curved surface respectively, and set up to the mode that two curved surfaces butt each other, but not unsmooth complex mode, the mode that sets up of butt, make the surface contact between spacer 230 and the spacing platform 212, become line contact, reduce the butt pressure of spacing platform 212, and simultaneously, the curved surface is more smooth, spacer 230 is more difficult to follow and holds the inslot 211 roll-off, anti-skidding effect is better.
Fig. 8 is a schematic view of a display device according to an embodiment of the present application, and as shown in fig. 8, as another embodiment of the present application, a display device 100 is disclosed, which includes a backlight module 300 and a display panel 200 disclosed in any embodiment of the present application, wherein the backlight module 300 is disposed on one side of a light incident surface of the display panel 200.
In this embodiment, the backlight module 300 is disposed on one side of the light incident surface of the display panel 200 to provide a light source for the display panel 200, the display panel 200 is provided with the receiving groove 211 on the substrate corresponding to the free end of the spacer 230, and meanwhile, the receiving groove 211 is provided with the limiting table 212, the free end of the spacer 230 is disposed in the receiving groove 211 and abutted against the limiting table 212, so as to ensure the supporting stability of the spacer 230, in addition, a part of the spacer 230 is disposed in the receiving groove 211 to prevent the display panel 200 from being subjected to an external force, the spacer 230 slides to cause scratches of the alignment film or the pixel electrode 258, thereby preventing the display panel 200 from displaying abnormal phenomena such as light leakage, white spots or screen splash caused by abnormal alignment, and ensuring the stability of the display panel 200.
The display device 100 further includes a driving circuit board for the display panel 200 to emit light, the driving circuit board is connected to the display panel 200 and the backlight module 300 respectively, so as to ensure normal operation of the display device 100, and the user experience is stronger, and the display device 100 includes a common liquid crystal display, such as a laptop display, a liquid crystal television, a liquid crystal display screen, and the like.
It should be noted that the inventive concept of the present application can form many embodiments, but the present application has a limited space and cannot be listed one by one, so that, on the premise of no conflict, any combination between the above-described embodiments or technical features can form a new embodiment, and after the embodiments or technical features are combined, the original technical effect will be enhanced.
The technical scheme of the present application can be widely applied to various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, and MVA (Multi-Domain Vertical Alignment) display panel, and all of them can be applied to the above scheme.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (8)
1. A display panel comprising a first substrate, a second substrate and a spacer, the first substrate and the second substrate being arranged in a pair, the spacer being arranged between the first substrate and the second substrate, one end of the spacer being arranged on the second substrate and the other end facing the first substrate, characterized in that,
an accommodating groove is formed in one side, close to the second substrate, of the first substrate, and the accommodating groove is arranged corresponding to the spacer;
a limiting table is arranged in the accommodating groove, the height of the limiting table is smaller than the depth of the accommodating groove, one end of the shock insulator is arranged in the accommodating groove and is abutted against the limiting table, and the width of the limiting table is smaller than the opening width of the accommodating groove, so that a concave area is formed between the limiting table and the central position in the accommodating groove;
the limiting tables at least comprise a first limiting table and a second limiting table, the first limiting table and the second limiting table are symmetrically arranged on two sides of the inner wall of the accommodating groove, and a gap is formed between the first limiting table and the second limiting table along the groove wall of the accommodating groove;
the first substrate is an array substrate, the second substrate is a color film substrate, and the array substrate is arranged on one side of the light incident surface of the display panel; the accommodating groove is formed in one side, close to the color film substrate, of the array substrate;
the accommodating groove comprises a through hole, the array substrate comprises a thin film transistor, the thin film transistor comprises a drain electrode and a passivation layer, and the through hole is arranged on the passivation layer and exposes the drain electrode; the limiting table is arranged on the inner wall of the through hole, and the opening width of the through hole on the passivation layer is larger than the width of the shock insulator; the width of the limiting table is smaller than the opening width of the via hole;
the through hole is used for connecting a pixel electrode and the drain electrode, and the pixel electrode is arranged on the first limiting table and the second limiting table and covers the gap.
2. The display panel of claim 1, wherein the receiving groove comprises a groove disposed on the passivation layer, the groove has a width greater than that of the spacer, and the spacing block has a width less than that of the groove.
3. The display panel according to claim 2, wherein the length of the position-limiting platform in the extending direction of the bottom of the groove is set to be less than or equal to one half of the depth of the groove, and the width of the groove is set to be 1.5 times of the width of one end of the spacer close to the position-limiting platform.
4. The display panel of claim 1, wherein the stopping block is disposed around an inner wall of the receiving groove, and a width of the stopping block is less than half of a width of the receiving groove.
5. The display panel according to claim 1, wherein one end of the limiting platform contacting the spacer is provided with a first chamfer structure, one end of the spacer contacting the limiting platform is provided with a second chamfer structure, and the first chamfer structure and the second chamfer structure are matched in shape.
6. The display panel according to claim 1, wherein a protrusion is disposed at an end of the spacer contacting the position-limiting table, and a width of the protrusion is smaller than a relative distance between the first position-limiting table and the second position-limiting table.
7. The display panel according to claim 6, wherein the protrusion protrudes toward one side of the bottom of the receiving groove, and the protruding length is greater than or equal to one half of the height of the position-limiting table and less than or equal to the height of the position-limiting table.
8. A display device comprises a backlight module, and is characterized in that the display device further comprises the display panel as claimed in any one of claims 1 to 7, and the backlight module is arranged on one side of the light incident surface of the display panel.
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| CN114217481B (en) * | 2021-12-30 | 2022-12-23 | 绵阳惠科光电科技有限公司 | Display panel and display device |
| CN114594625B (en) * | 2022-02-23 | 2023-11-21 | 厦门天马微电子有限公司 | Display panel and manufacturing method thereof |
| CN114637145B (en) * | 2022-03-21 | 2023-03-24 | 绵阳惠科光电科技有限公司 | Display panel and display device |
| CN114690489A (en) * | 2022-04-25 | 2022-07-01 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
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