CN114326223A

CN114326223A - Display panel and display device

Info

Publication number: CN114326223A
Application number: CN202210189413.3A
Authority: CN
Inventors: 曹尚操; 田尚益; 李荣荣
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-04-12
Anticipated expiration: 2042-03-01
Also published as: CN114326223B

Abstract

The invention discloses a display panel and a display device, wherein the display panel comprises an array substrate, a color film substrate and a plurality of auxiliary spacers arranged between the array substrate and the color film substrate, the array substrate is provided with a scanning line layer and a data line layer, the scanning line layer comprises a plurality of scanning lines, the data line layer comprises a plurality of data lines, each scanning line and each data line are arranged in an overlapped mode, and a plurality of pixel units are defined; defining each data line to comprise a plurality of connected data line segments, defining each scanning line to comprise a plurality of connected scanning line segments, and defining a pixel unit by the two adjacent data line segments and the two adjacent scanning line segments; defining the orthographic projection of each auxiliary spacer on the scanning line layer to form a shadow area, wherein at least part of area of each shadow area is positioned in a scanning line segment; when each auxiliary spacer is orthographically projected onto the scanning line layer, at least partial areas of at least two shadow areas exist in partial scanning line segments. The liquid crystal amount of the display panel provided by the invention has a wider application range.

Description

Display panel and display device

Technical Field

The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.

Background

The liquid crystal display panel needs to be manufactured with a spacer PS to maintain the thickness of the liquid crystal cell stable. When the PS is manufactured, a substrate is coated with a photoresist material, then the pattern on the mask is transferred to the photoresist material through procedures of exposure, development and the like, and finally the PS is formed through processes of etching, washing, baking and the like.

In the related art, as the overall size of the display panel increases, in order to maintain the stability of the cell thickness of the display panel, the height of the Main spacer Main PS inside the display panel is constant, and the volume of the Sub spacer Sub PS inside the display panel needs to be increased accordingly. Taking a negative photoresist as an example, when the volume of the Sub PS to be manufactured is increased, the light incident amount of the mask for manufacturing the Sub PS is increased correspondingly, so that the height of the actually manufactured Sub PS is higher, which will result in a decrease in the vertical height difference between the Main PS and the Sub PS, that is, a decrease in the step difference. When the section difference between Main PS and Sub PS is reduced, the applicable range of the liquid crystal quantity LC Margin in the display panel is reduced, and when the liquid crystal expands due to external temperature or stress change, the expansion range of the liquid crystal possibly exceeds the maximum value of the LC Margin to cause uneven gravity distribution, thereby causing poor display; when the liquid crystal shrinks due to an external temperature or stress change, the shrinkage range of the liquid crystal may be lower than the minimum value of the LC Margin and bubbles may occur, causing display defects.

Disclosure of Invention

The invention provides a display panel, aiming at improving the application range of liquid crystal quantity of the display panel.

In order to achieve the above object, the present invention provides a display panel, where the display panel includes an array substrate, a color film substrate, and a plurality of auxiliary spacers disposed between the array substrate and the color film substrate, the array substrate is provided with a scan line layer and a data line layer, the scan line layer includes a plurality of scan lines, the data line layer includes a plurality of data lines, and each scan line and each data line are overlapped and define a plurality of pixel units;

defining each data line to comprise a plurality of connected data line segments, defining each scanning line to comprise a plurality of connected scanning line segments, and defining one pixel unit by enclosing two adjacent data line segments and two adjacent scanning line segments;

defining the orthographic projection of each auxiliary spacer on the scanning line layer to form a shadow area, wherein at least partial area of each shadow area is positioned in one scanning line segment; when each auxiliary spacer is orthographically projected onto the scanning line layer, at least partial areas of at least two shadow areas exist in part of the scanning line segments.

In an embodiment of the present invention, the plurality of auxiliary spacers includes at least one first auxiliary spacer and at least one second auxiliary spacer;

defining the orthographic projection of each first auxiliary spacer on the scanning line layer to form a first shadow area, and defining the orthographic projection of each second auxiliary spacer on the scanning line layer to form a second shadow area;

when each first auxiliary spacer and each second auxiliary spacer are orthographically projected onto the scan line layer, at least one first shadow area and at least one second shadow area exist in a part of the scan line segments, and the first shadow area and the second shadow area on the same scan line segment are respectively arranged adjacent to two adjacent data line segments.

In an embodiment of the present invention, the array substrate is further provided with a circuit layer, and the circuit layer includes a plurality of thin film transistor units;

the circuit layer is positioned on one side of the scanning line layer facing the data line layer, each thin film transistor unit is arranged corresponding to one pixel unit, and each thin film transistor unit is connected with one end of one scanning line segment, one data line segment and one pixel unit;

the orthographic projection of each first auxiliary spacer on the circuit layer shields at least part of structure of one thin film transistor unit.

In an embodiment of the invention, an orthogonal projection of each of the second auxiliary spacers on the scan line layer is located at an end of one of the scan line segments away from the end connected to the tft unit.

In an embodiment of the invention, the array substrate is further provided with an organic insulating layer and a spacer layer;

the isolation cushion layer and the circuit layer are arranged on the same layer of the organic insulation layer on one side opposite to the color film substrate;

the circuit layer comprises a plurality of spacer units, each spacer unit is positioned at one end of the scanning line section far away from the thin film transistor unit, and the orthographic projection of each second auxiliary spacer on the spacer layer shields at least part of structure of one spacer unit.

In an embodiment of the invention, the spacer layer and the circuit layer have the same thickness;

and/or the spacer layer is made of metal.

In an embodiment of the present invention, the display panel further includes a plurality of main spacers disposed between the display panel and the array substrate;

defining each main spacer to form a projection area by orthographic projection on the scanning line layer, wherein when each main spacer and each auxiliary spacer are orthographically projected to the scanning line layer, at least partial area of each projection area is located in a scanning line segment, and the shadow area does not exist on the scanning line segment where each projection area is located.

defining each main shock insulator to orthographically project on the scanning line layer to form a projection area, when each main shock insulator and each auxiliary shock insulator orthographically project on the scanning line layer, at least partial area of each projection area is located in a scanning line segment, and at least one shadow area also exists on the scanning line segment where each projection area is located.

the vertical height difference between the main spacer and the auxiliary spacer is more than or equal to 0.45 mu m and less than or equal to 0.5 mu m.

Furthermore, the present invention also provides a display device, including:

the display panel described above; and

the display panel is arranged on the light emitting side of the backlight module.

The technical scheme of the invention is that the auxiliary spacers in the display panel are arranged corresponding to the scanning lines, at least partial areas of shadow areas formed by orthographic projection of each auxiliary spacer on the scanning line layer are positioned in a scanning line segment, and when each auxiliary spacer is orthographic projected on the scanning line layer, at least partial areas of at least two shadow areas are positioned in partial scanning line segments. Therefore, when the display size of the display panel is increased, the scheme of arranging part of the scanning line segments corresponding to at least two auxiliary spacers in the invention can reduce the volume of a single auxiliary spacer in design on the premise of maintaining the thickness of a liquid crystal box to be stable, thereby avoiding the increase of the light inlet quantity of a mask for manufacturing the auxiliary spacers, enabling the height of the auxiliary spacers to be more in line with the design expectation in molding, improving the problem that the manufactured height of the auxiliary spacers is higher than the design expectation due to the process technology, properly increasing the section difference between the main spacers and the auxiliary spacers compared with the prior art, and improving the liquid crystal application range of the large-size display panel.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of a display device according to the present invention;

FIG. 2 is a schematic diagram illustrating the distribution of main spacers and auxiliary spacers in a display panel according to a first embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating the distribution of main spacers and auxiliary spacers in a display panel according to a second embodiment of the present invention;

FIG. 4 is a schematic diagram of a third embodiment of an auxiliary spacer and a pixel unit according to the present invention;

FIG. 5 is a schematic structural diagram of an auxiliary spacer and a pixel unit according to a fourth embodiment of the present invention;

fig. 6 is a cross-sectional view of the structure of fig. 5 taken along line a-a'.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Array substrate	17	Insulating layer
11	Scanning line	18	Common electrode layer
				111	Scanning line segment	2	Color film substrate
12	Data line	3	Auxiliary spacer
				121	Data line segment	31	First auxiliary spacer
13	Pixel unit	31a	First shadow region
				14	Circuit layer	32	Second auxiliary spacer
141	Thin film transistor unit	32a	Second shadow region
				15	Organic insulating layer	3a	Shadow zone
16	Spacer layer	4	Main isolation pad
				161	Spacer unit	5	Backlight module

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. The meaning of "and/or" appearing throughout is the same and is meant to encompass three juxtapositions, exemplified by "A and/or B" and including either scheme A, scheme B, or both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a display panel, which is a liquid crystal display panel and is used for image display.

In an embodiment of the present invention, as shown in fig. 1, the display panel includes an array substrate 1, a color filter substrate 2, and a plurality of auxiliary spacers 3 disposed between the array substrate 1 and the color filter substrate 2, the array substrate 1 is provided with a scanning line 11 layer and a data line 12 layer, the scanning line 11 layer includes a plurality of scanning lines 11, the data line 12 layer includes a plurality of data lines 12, and each scanning line 11 and each data line 12 are overlapped and define a plurality of pixel units 13. As further shown in fig. 2 and 4, each data line 12 is defined to include a plurality of connected data line segments 121, each scan line 11 is defined to include a plurality of connected scan line segments 111, and two adjacent data line segments 121 and two adjacent scan line segments 111 enclose to define a pixel unit 13; defining the orthographic projection of each auxiliary spacer 3 on the scanning line 11 layer to form a shadow area 3a, wherein at least part of the shadow area 3a is positioned in a scanning line segment 111; when each auxiliary spacer 3 is orthographically projected onto the layer of the scan lines 11, at least partial areas of at least two shadow areas 3a exist in the partial scan line segments 111.

In this embodiment, liquid crystal is filled between the array substrate 1 and the color film substrate 2, the array substrate 1 and the color film substrate 2 are combined to form a liquid crystal cell, and a main spacer 4 and an auxiliary spacer 3, that is, PS, for supporting and stabilizing the cell thickness of the liquid crystal cell are disposed on the array substrate 1 or the color film substrate 2. The main spacer 4 and the auxiliary spacer 3 are both positioned between the color film substrate 2 and the array substrate 1, and the main spacer 4 and the auxiliary spacer 3 are formed by coating a photoresist material on the color film substrate 2 or the array substrate 1, exposing through a mask, and then developing, etching and the like.

The amount of light entering the reticle determines the volume of the formed primary and

secondary spacers

4, 3, including the height of the secondary spacers 3. The vertical height difference, i.e. the step difference, between the main spacer 4 and the auxiliary spacer 3 affects the application range of the liquid crystal quantity in the liquid crystal cell, i.e. the LC Margin. The application range of the liquid crystal quantity determines whether the display panel has poor display due to the liquid crystal change when the liquid crystal expands or contracts under the influence of the temperature and stress changes, and the application range is a big factor influencing the display effect of the display panel. Generally, the liquid crystal amount application range of the display panel with the smaller step difference between the main spacer 4 and the auxiliary spacer 3 is smaller, and the display panel with the larger liquid crystal amount application range has higher use tolerance under different environmental conditions, and is not easy to display badly due to the change of the environmental temperature or the external pressure. As the size of the display panel increases, the height of the main spacers 4 within the display panel generally does not change, however, in order to maintain the thickness of the liquid crystal cell constant, the volume of the single auxiliary spacer 3 needs to be increased accordingly, this requires that the large-sized auxiliary spacers 3 be made using a different mask than the small-sized auxiliary spacers 3, the light inlet quantity of the mask plate actually used for manufacturing the large-size auxiliary spacer 3 is often too large, which easily causes the height of the manufactured auxiliary spacer 3 to be less than the expected height, causes the segment difference between the actual main spacer 4 and the auxiliary spacer 3 to be reduced, causes the application range of the liquid crystal quantity to be too low, and finally causes the liquid crystal in the display panel to expand due to the change of the external temperature or stress, the expansion range of the liquid crystal is easy to exceed the maximum value of the application range of the liquid crystal amount, so that the gravity distribution is uneven, and the display of the display panel is poor; when the liquid crystal in the display panel shrinks due to the change of the external temperature or the stress, the shrinkage range of the liquid crystal is easily lower than the minimum value of the application range of the liquid crystal amount, and bubbles appear, so that the display failure of the display panel is caused.

In view of the above problem, the present embodiment divides each scan line 11 into a plurality of scan line segments 111 and divides each data line 12 into a plurality of data line segments 121 according to the region where each pixel unit 13 is located. The number of scan line segments 111 on each scan line 11 is the same as the number of pixel units 13 electrically connected to the scan line 11, and the number of data line segments 121 on each data line 12 is the same as the number of pixel units 13 electrically connected to the data line 12. Each scan line 11 is an integral structure, each data line 12 is an integral structure, each scan line 11 and each data line 12 do not have a segmentation point in a practical sense, and two adjacent scan line segments 111 do not have a break point, but are divided by taking the data line 12 located between the two scan lines 11 as a central line, and similarly, two adjacent data lines 12 are also divided by taking the scan line 11 located between the two data lines 12 as a central line. After the scanning lines 11 and the data lines 12 are divided into corresponding scanning line segments 111 and data line segments 121 according to the above-mentioned manner, a part of the scanning line segments 111 is arranged corresponding to at least two auxiliary spacers 3, so that when each auxiliary spacer 3 is orthographically projected to the scanning line 11 layer, a shadow area 3a formed by projecting at least two auxiliary spacers 3 exists on the part of the scanning line segments 111, and thus at least two spacers are arranged above the part of the scanning line segments 111 corresponding to each scanning line 11 in the vertical light emitting direction of the display panel. Therefore, on one hand, the number and the density of the auxiliary spacers 3 are improved by the scheme that the at least two auxiliary spacers 3 are arranged corresponding to one scanning line 11, and the improvement of the stability of the liquid crystal box thickness and the improvement of the surface pressure of the display panel are facilitated. On the other hand, when the display size of the display panel is increased, by the scheme of setting a part of the scanning line segments 111 corresponding to at least two auxiliary spacers 3 in this embodiment, the volume of a single auxiliary spacer 3 when being designed can be reduced on the premise of maintaining the thickness of a liquid crystal cell to be stable, so that the increase of the light input quantity of a mask for manufacturing the auxiliary spacers 3 can be avoided, the height of the auxiliary spacers 3 during molding can be more in line with the design expectation, the problem that the manufacturing height of the auxiliary spacers 3 is higher than the design expectation due to the process is solved, compared with the prior art, the section difference between the main spacers 4 and the auxiliary spacers 3 is properly increased, the liquid crystal application range of the large-size display panel is improved, and the display effect of the display panel under different environmental conditions is favorably improved.

Optionally, the vertical height difference between the main spacer 4 and the auxiliary spacer 3 is greater than or equal to 0.45 μm and less than or equal to 0.5 μm. Therefore, the section difference between the main spacer 4 and the auxiliary spacer 3 does not influence the reliability and stability of the main spacer 4 and the auxiliary spacer 3 on the maintenance of the liquid crystal box thickness because the section difference is more than 0.5 mu m; the step difference between the main spacer 4 and the auxiliary spacer 3 is less than 0.45 mu, so that the liquid crystal quantity application range of the display panel is not low, and the display panel is easy to have poor display due to expansion or contraction of the liquid crystal.

It should be noted that the number of the auxiliary spacers 3 and the main spacers 4 in the present embodiment may be set according to actual needs, and each scan line segment 111 may be set corresponding to one auxiliary spacer 3 or two auxiliary spacers 3 or a plurality of auxiliary spacers 3. Moreover, the partial scan line segment 111 in this embodiment may be disposed corresponding to the main spacer 4, that is, at least a partial region of the orthographic projection of the main spacer 4 on the scan line 11 layer is located in the scan line segment 111, at this time, the scan line 11 may not be disposed corresponding to the at least two auxiliary spacers 3, that is, when each auxiliary spacer 3 is orthographic projected onto the scan line 11 layer, only a part of the scan line segment 111 has at least two shadow areas 3 a. In addition, because the light-shielding layer is disposed above each scan line 11 in the light-emitting direction of the display panel to prevent light leakage around the scan line 11, and the width of the light-shielding layer disposed corresponding to the scan line 11 is greater than that of the scan line 11, the maximum width of the shadow region 3a formed by projecting the auxiliary spacer 3 on the scan line 11 layer is designed to be greater than that of the scan line 11, so that the light-shielding layer can also shield the light from the periphery of the auxiliary spacer 3, and the auxiliary spacer 3 itself is made of a photoresist material to prevent light leakage to some extent, so that a partial region of each shadow region 3a can be located outside a scan line segment 111 or each shadow region 3a can be located completely within the scan line segment 111.

In practical applications, the main spacers 4 and the auxiliary spacers 3 in the above embodiments have various arrangements in the display panel, and the first embodiment and the second embodiment are exemplified as follows:

first embodiment

As shown in fig. 2, the distribution position of the main spacers 4 shown in fig. 2 corresponds to the position of the projection area formed by the orthographic projection of the main spacers 4 onto the scanning line 11 layer, and the distribution position of the auxiliary spacers 3 corresponds to the position of the shadow area 3a formed by the orthographic projection of the auxiliary spacers 3 onto the scanning line 11 layer. When the main spacers 4 and the auxiliary spacers 3 project to the scanning line 11 layer, at least a part of the area of each projection area is located in a scanning line segment 111, and the scanning line segment 111 where each projection area is located does not have a shadow area 3 a.

In the present embodiment, for example, each scan line segment 111 shown in fig. 2 corresponds to two spacers, some scan line segments 111 are arranged corresponding to one main spacer 4, and the rest scan line segments 111 are arranged corresponding to two auxiliary spacers 3, because the number of main spacers 4 in the display panel is smaller than that of auxiliary spacers 3, the number of scan line segments 111 arranged corresponding to two auxiliary spacers 3 is greater than that of scan line segments 111 arranged corresponding to one main spacer 4 and one auxiliary spacer 3. The arrangement mode of the main spacer 4 and the auxiliary spacer 3 in the embodiment can reduce the number of the auxiliary spacers 3, reduce the manufacturing cost of the display panel, and simultaneously ensure that three or four spacers are arranged on the periphery of each pixel unit 13 to form three or four supporting points, thereby realizing stable support of the outer side of each pixel unit 13 and ensuring normal display of each pixel unit 13.

Second embodiment

As shown in fig. 3, the difference between this embodiment and the first embodiment is that when the main spacers 4 and the auxiliary spacers 3 are orthographically projected onto the scan line 11 layer, at least a partial region of each projection area is located in a scan line segment 111, and at least one shadow area 3a is further located on the scan line segment 111 where each projection area is located.

In the present embodiment, for example, each scan line segment 111 shown in fig. 2 corresponds to two spacers, some scan line segments 111 are arranged corresponding to one main spacer 4 and one auxiliary spacer 3, and the rest scan line segments 111 are arranged corresponding to two auxiliary spacers 3, because the number of main spacers 4 in the display panel is smaller than that of auxiliary spacers 3, the number of scan line segments 111 arranged corresponding to two auxiliary spacers 3 is greater than that of scan line segments 111 arranged corresponding to one main spacer 4 and one auxiliary spacer 3. In this embodiment, the number of the spacers corresponding to each pixel unit 13 is equal by the arrangement of the main spacers 4 and the auxiliary spacers 3, which is beneficial to balancing the surface pressure of the display panel and improving the stability of the liquid crystal cell thickness of the display panel.

In an embodiment of the present invention, as shown in fig. 1 and 4, the plurality of auxiliary spacers 3 includes at least one first auxiliary spacer 31 and at least one second auxiliary spacer 32; defining an orthographic projection of each first auxiliary spacer 31 on the scanning line 11 layer to form a first shadow area 31a, and defining an orthographic projection of each second auxiliary spacer 32 on the scanning line 11 layer to form a second shadow area 32 a; when each first auxiliary spacer 31 and each second auxiliary spacer 32 project onto the scan line 11 layer, at least one first shadow area 31a and at least one second shadow area 32a exist in a part of the scan line segments 111, and the first shadow area 31a and the second shadow area 32a located on the same scan line segment 111 are respectively adjacent to two adjacent data line segments 121.

In this embodiment, the auxiliary spacers 3 are divided into a first auxiliary spacer 31 and a second auxiliary spacer 32 according to different positions corresponding to the scan line segments 111, the first auxiliary spacer 31 and the second auxiliary spacer 32 may have the same structure, and the first auxiliary spacer 31 and the second auxiliary spacer 32 may be manufactured and molded by the same process, so as to reduce the manufacturing procedures and costs of the first auxiliary spacer 31 and the second auxiliary spacer 32. The first auxiliary spacers 31 and the second auxiliary spacers 32 are arranged and distributed at two ends of the scanning line sections 111 respectively, so that a spacing area is formed between the first auxiliary spacers 31 and the second auxiliary spacers 32 corresponding to each scanning line section 111, the arrangement of other auxiliary spacers 3 is facilitated, the arrangement number of the auxiliary spacers 3 is further increased, the volume of a single auxiliary spacer 3 is reduced, and the application range of the liquid crystal quantity of the display panel is widened.

In practical applications, the first auxiliary spacer 31 and the second auxiliary spacer 32 in the above embodiment have various arrangements, and the third embodiment and the fourth embodiment are exemplified below:

third embodiment

As shown in fig. 4, the array substrate 1 is further provided with a circuit layer 14, and the circuit layer 14 includes a plurality of thin film transistor units 141; the circuit layer 14 is located on one side of the scan line 11 layer facing the data line 12 layer, each tft unit 141 is disposed corresponding to a pixel unit 13, and each tft unit 141 is connected to one end of a scan line segment 111, a data line segment 121, and a pixel unit 13; the orthographic projection of each first auxiliary spacer 31 on the circuit layer 14 shields at least part of the structure of a thin film transistor unit 141.

In the present embodiment, the source of each tft unit 141 is connected to a data line 12, the drain of each tft unit 141 is connected to the pixel electrode of the pixel unit 13, and the gate of each tft unit 141 is connected to a scan line 11. The gate of each tft unit 141 is located below the source of the tft unit 141, and the scan line 11 is located below the data line 12 and the circuit layer 14. In this embodiment, the first auxiliary spacers 31 are disposed corresponding to the thin film transistor units 141, so that each first auxiliary spacer 31 can be disposed above one thin film transistor unit 141, and when the display panel is under the action of an external stress, the circuit layer 14 where the thin film transistor units 141 are disposed is used to stably and reliably support the first auxiliary spacers 31, which is beneficial to ensuring the stability of the liquid crystal cell thickness of the display panel.

Optionally, the orthographic projection of each second auxiliary spacer 32 on the layer of the scan line 11 in this embodiment is located at one end of the scan line segment 111 far from the end connected to the tft unit 141. Taking the main spacer 4, the first auxiliary spacer 31, and the second auxiliary spacer 32 as an example, since the end of the scan line 11 away from the tft unit 141 is not provided with the tft unit 141 and the circuit layer 14, and the first auxiliary spacer 31 and the second auxiliary spacer 32 are respectively disposed at positions corresponding to the two ends of the scan line segment 111, even if the vertical heights of the first auxiliary spacer 31 and the second auxiliary spacer 32 are equal, the distance between the end of the first auxiliary spacer 31 away from the array substrate 1 and the color filter substrate 2 is greater than the distance between the end of the second auxiliary spacer 32 away from the array substrate 1 and the color filter substrate 2, so that a first-level difference is formed between the main spacer 4 and the first auxiliary spacer 31, a second-level difference is formed between the main spacer 4 and the second auxiliary spacer 32, and the second-level difference is greater than the first-level difference, which is beneficial to increase of the difference between the main spacer 4 and the auxiliary spacer 3, the liquid crystal display panel has the advantage that the application range of the liquid crystal amount of the display panel is improved.

Fourth embodiment

As shown in fig. 5 and fig. 6, the present embodiment is different from the third embodiment in that the array substrate 1 is further provided with an organic insulating layer 15 and a spacer layer 16; the isolation layer 16 and the circuit layer 14 are arranged on the same layer on one side of the organic insulating layer 15, which faces away from the color film substrate 2; the circuit layer 14 includes a plurality of spacer units 161, each spacer unit 161 is located at an end of a scan line segment 111 away from the tft unit 141, and an orthogonal projection of each second auxiliary spacer 32 on the spacer layer 16 shields at least a portion of a structure of one spacer unit 161.

In this embodiment, taking the case that the main spacer 4, the first auxiliary spacer 31 and the second auxiliary spacer 32 are disposed on the array substrate 1 as an example, since the circuit layer 14 does not extend and cover one end of the scan line segment 111 away from the circuit of the tft unit 141, even if the vertical heights of the first auxiliary spacer 31 and the second auxiliary spacer 32 are equal, the distance between the end of the first auxiliary spacer 31 away from the array substrate 1 and the color filter substrate 2 is different from the distance between the end of the second auxiliary spacer 32 away from the array substrate 1 and the color filter substrate 2, and the supporting effects of the first auxiliary spacer 31 and the second auxiliary spacer 32 on the array substrate 1 and the color filter substrate 2 are different from each other. Therefore, in the present embodiment, the spacer layer 16 is disposed at one end of the scan line segment 111 away from the thin film transistor unit 141, and the spacer unit 161 in the spacer layer 16 is used to increase the height of the position of the scan line segment 111 away from one end of the thin film transistor unit 141, so that the distance from the end of the second auxiliary spacer 32 away from the array substrate 1 to the color filter substrate 2 is close to the distance from the end of the first auxiliary spacer 31 away from the array substrate 1 to the color filter substrate 2, so that the supporting effect of the first auxiliary spacer 31 and the second auxiliary spacer 32 on the array substrate 1 and the color filter substrate 2 is equivalent, thereby improving the reliability and stability of maintaining the liquid crystal cell thickness. The spacer layer 16 may be disposed on a side of the insulating layer 17 facing away from the common electrode layer 18, and the insulating layer 17 is used to realize insulating isolation between the common electrode layer 18 and other metal layers.

Optionally, the spacer layer 16 in this embodiment is equal in thickness to the circuit layer 14; and/or the spacer layer 16 is made of metal. Taking the main spacer 4, the first auxiliary spacer 31, and the second auxiliary spacer 32 as an example, when the thickness of the spacer layer 16 is equal to the thickness of the circuit layer 14, the spacer unit 161 in the spacer layer 16 is used to increase the height of the position of the scan line segment 111 away from the end connected to the thin film transistor unit 141, so that the distance from the end of the second auxiliary spacer 32 away from the array substrate 1 to the color film substrate 2 is equal to the distance from the end of the first auxiliary spacer 31 away from the array substrate 1 to the color film substrate 2, and the supporting effects of the first auxiliary spacer 31 and the second auxiliary spacer 32 on the array substrate 1 and the color film substrate 2 are the same, thereby improving the reliability and stability of maintaining the liquid crystal cell thickness. When the spacer layer 16 is made of a metal material, the spacer layer 16 can be manufactured in the same layer as the circuit layer 14 in the same manufacturing process, so that the manufacturing process and cost of the display panel can be saved.

In addition, the present invention further provides a display device, as shown in fig. 1, the display device includes a backlight module 5 and the display panel in the above embodiment, wherein the display panel is disposed on the light emitting side of the backlight module 5.

In this embodiment, the backlight module 5 is used to provide backlight for the display panel, and the backlight module 5 may be a direct type backlight module 5 or a side type backlight module 5, where the specific structure of the display panel refers to the above embodiments, and since the display device adopts all technical solutions of all the above embodiments, the display device at least has all the beneficial effects brought by the technical solutions of the above embodiments, and no further description is provided herein.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A display panel comprises an array substrate, a color film substrate and a plurality of auxiliary spacers arranged between the array substrate and the color film substrate, wherein the array substrate is provided with a scanning line layer and a data line layer, the scanning line layer comprises a plurality of scanning lines, the data line layer comprises a plurality of data lines, each scanning line and each data line are arranged in an overlapped mode, and a plurality of pixel units are defined, and the display panel is characterized in that:

2. The display panel of claim 1, wherein the plurality of auxiliary spacers includes at least one first auxiliary spacer and at least one second auxiliary spacer;

3. The display panel according to claim 2, wherein the array substrate is further provided with a circuit layer, the circuit layer including a plurality of thin film transistor cells;

4. The display panel of claim 3, wherein an orthographic projection of each of the second auxiliary spacers on the scan line layer is located at an end of one of the scan line segments away from the end connected to the TFT unit.

5. The display panel according to claim 4, wherein the array substrate is further provided with an organic insulating layer and a spacer layer;

6. The display panel according to claim 5, wherein the spacer layer and the circuit layer have the same thickness;

and/or the spacer layer is made of metal.

7. The display panel according to any one of claims 1 to 6, wherein the display panel further comprises a plurality of main spacers provided between the display panel and the array substrate;

8. The display panel according to any one of claims 1 to 6, wherein the display panel further comprises a plurality of main spacers provided between the display panel and the array substrate;

9. The display panel according to any one of claims 1 to 6, wherein the display panel further comprises a plurality of main spacers provided between the display panel and the array substrate;

10. A display device, characterized in that the display device comprises:

the display panel according to any one of claims 1 to 9; and