WO2018205743A1

WO2018205743A1 - Display substrate, liquid crystal display panel and curved liquid crystal display apparatus

Info

Publication number: WO2018205743A1
Application number: PCT/CN2018/079125
Authority: WO
Inventors: 张清俊; 吴东起; 李圭铉; 付杨洪; 问武鹏; 杨文波; 吴康; 冯永山; 王沛占; 尚梦帆; 薛强; 张瑜; 胡丹单
Original assignee: 京东方科技集团股份有限公司; 重庆京东方光电科技有限公司
Priority date: 2017-05-10
Filing date: 2018-03-15
Publication date: 2018-11-15
Also published as: CN106970491A; CN106970491B

Abstract

Disclosed are a display substrate, a liquid crystal display panel and a curved liquid crystal display apparatus. The display substrate comprises: a first substrate (100); and a plurality of first spacers (101) located on the first substrate (100) and configured to keep the first substrate (100) separate from a second substrate (200). In a top view, the initial planar dimensions of the plurality of first spacers (101) are substantially identical, wherein first spacers (101) located in a first region (100A) are configured to together provide a first support force for the second substrate (200) when the first substrate (100) and the second substrate (200) have a spacing therebetween in the first region (100A), and first spacers (101) located in a second region (100A) are configured to together provide a second support force for the second substrate (200) when the first substrate (100) and the second substrate (200) have the spacing therebetween in the second region (100A), the first support force being substantially greater than the second support force. In the top view, the first region (100A) and the second region (100A) do not overlap with each other, but are substantially identical in size and shape. In this way, the uniformity of the cell thickness of a curved liquid crystal display apparatus is ensured.

Description

Display substrate, liquid crystal display panel and curved liquid crystal display device

The present application claims the priority of the Chinese Patent Application No. JP-A No. Hei.

Technical field

Embodiments of the present disclosure relate to a display substrate, a liquid crystal display panel, and a curved liquid crystal display device.

Background technique

Thin Film Transistor Liquid Crystal Display (TFT LCD) is the mainstream product of current display, which has the characteristics of low energy consumption, low production cost and no radiation.

The flat liquid crystal display panel in the TFT LCD is mainly formed by a color film substrate and an array substrate, and a plurality of column spacers (English Photo Spacer, PS for short) are provided between the two, for maintaining a certain gap to inject liquid crystal. This gap is called the box thickness (English Cell Gap). The thickness of the box must be maintained at a fixed value to ensure uniform thickness of the liquid crystal display panel. Therefore, in the flat type liquid crystal display panel, the PS design of each position should be kept consistent. For example, the height and density of the main PS at each position are the same, and the height, density, and material of the auxiliary PS at each position are the same to ensure the consistency of the box thickness.

The curved liquid crystal display panel is the current development trend of the liquid crystal display panel. However, for a curved liquid crystal display panel, when the panel is bent, the force at the center of the curved surface is the largest, and the distance from the center of the curved surface is less stressed. Therefore, if the scheme of maintaining the PS at each position is still adopted, it will result in The deformation of the spacer in the center of the surface is the largest, which results in the minimum thickness of the box at the same place, and the thickness of the box at other positions is increased as the thickness of the box is farther away from the center of the curved surface, thereby reducing the curvature of the curved liquid crystal display panel. The uniformity of the thickness of the box, which in turn affects the normal display of the curved liquid crystal display device.

Summary of the invention

An embodiment of the present disclosure provides a display substrate including: a first substrate; and a plurality of first spacers on the first substrate configured to maintain separation of the first substrate and a second substrate, wherein In a top view, the initial planar dimensions of the plurality of first spacers are substantially the same, wherein the first spacers located in the first region are configured to be at the first substrate and the second The substrate collectively provides a first supporting force to the second substrate when the first region has a space, and the first spacer located in the second region is configured to be at the first substrate and the second The substrate collectively provides a second supporting force to the second substrate when the second region has the spacing, the first supporting force being substantially greater than the second supporting force, wherein in the top view, the The first area and the second area do not overlap each other but are substantially the same in size and shape.

In one example, the display substrate has an axis of symmetry in which the first region is closer to the axis of symmetry relative to the second region.

In one example, in a cross-sectional view perpendicular to the axis of symmetry, the initial height of the first spacer in the second region decreases sequentially in a direction away from the axis of symmetry.

In one example, the first spacers located within the first region have the same first initial height, and the first spacers located within the second region and the third region have The same second initial height.

In one example, the first spacer and the first spacer in the second region are disposed in at least one of the following manners: the first spacer in the first region An initial height of any of the first spacers is greater than an initial height of any of the first spacers in the second region; the number of the first spacers in the first region is greater than the second region The number of the first spacers; the modulus of elasticity of the material of the first spacer in the first region is greater than the material of the first spacer in the second region Elastic Modulus.

In one example, the first spacer located in the third region is configured to collectively face the second substrate when the first substrate and the second substrate have the interval in the third region Providing a third supporting force, the third supporting force being substantially equal to the second supporting force, wherein, in the top view, the third area does not overlap with the first area and the second area The third region and the second region are symmetric about the axis of symmetry.

In one example, the first spacer in the third region is substantially identical to the first spacer in the second region in at least one of an initial height, a number, and an elastic mold.

In one example, in the top view, the first region is located between the second region and the third region in a direction perpendicular to the axis of symmetry.

In one example, the display substrate further includes a plurality of second spacers on the first substrate.

In one example, the plurality of second spacers are the same size and smaller than the size of the plurality of first spacers, and the plurality of second spacers located in the first area are configured as Providing a third supporting force to the second substrate when the first substrate and the second substrate have the interval in the first region, and the second spacer structure located in the second region Providing a fourth supporting force to the second substrate when the first substrate and the second substrate have the interval in the second region, the third supporting force is substantially larger than the fourth supporting force.

Another embodiment of the present disclosure provides a curved liquid crystal display panel comprising the display substrate according to any one of the above.

Yet another embodiment of the present disclosure provides a curved liquid crystal display device including the above display panel.

In this way, it is advantageous to ensure the uniformity of the thickness of the curved liquid crystal display device.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present disclosure. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

1A-1B are schematic structural views of a display substrate according to an embodiment of the present disclosure;

1C is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

1D-1E are schematic structural views of a display substrate according to an embodiment of the present disclosure;

2A-2B are schematic structural views of a display substrate according to an embodiment of the present disclosure;

2C is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

2D is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure;

3A-3B are schematic structural views of a display substrate according to an embodiment of the present disclosure;

4 is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure;

6A-6B are schematic structural views of a display substrate according to an embodiment of the present disclosure;

6C is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

6D is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure;

7A-7B are schematic structural views of a display substrate according to an embodiment of the present disclosure;

7C is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

7D is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure;

8A-8B are schematic structural diagrams of a display substrate according to an embodiment of the present disclosure;

8C is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

9 is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure;

11 is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a display substrate according to an embodiment of the present disclosure.

detailed description

The technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. It is apparent that the described embodiments are part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the described embodiments of the present disclosure without departing from the scope of the invention are within the scope of the disclosure.

Embodiments of the present disclosure provide a display substrate for a curved liquid crystal display, the display substrate including: a substrate and a plurality of spacers disposed on the substrate; the plurality of spacers including a plurality of columns arranged in parallel in a row direction a first spacer, the substrate is divided into a plurality of regions in a row direction; each region is provided with at least one column of the first spacer, and the first spacer in the first region has a greater suppression force than the second region The suppressing force of the spacer is a force for maintaining the spacing between the upper substrate and the lower substrate of the curved liquid crystal display, and the display substrate is one of the upper substrate and the lower substrate; wherein the first region is any phase An area in the two adjacent regions that is closer to the center of the substrate.

In the embodiment of the present disclosure, when the display substrate is used to form a curved liquid crystal display panel, the display substrate needs to be bent, and the stress is concentrated in the middle portion when the display substrate is bent, so that the center force of the curved surface is greater than the force on both sides, however, The inhibitory force of the display substrate provided by the embodiment of the present disclosure is closer to the spacer in the center of the display substrate, that is, the spacer at the center of the display substrate can provide a larger reaction force (ie, for any display substrate). Supporting force) to further reduce the spacing between the upper substrate and the lower substrate, so that the thickness of the middle portion of the curved liquid crystal display panel made of the display substrate is not reduced compared with the two sides, thereby ensuring the center of the curved surface and The thickness of the box on both sides is uniform. In addition, after the display substrate in which the spacers are arranged in the above manner is formed into a curved liquid crystal display panel, when the curved liquid crystal display panel is subjected to the horizontal direction force, the suppression force provided by the spacers at the center of the curved surface is large, thereby making the The friction between the spacer and the upper substrate and the lower substrate of the curved liquid crystal display is sufficiently large, which can effectively prevent the position of the spacer from shifting and avoid the occurrence of wiping.

In an embodiment of the present disclosure, the first spacers in the plurality of regions may be arranged in at least one of the following manners: the initial height of the first spacers in the first region is greater than the first region in the second region An initial height of a spacer; a density of the first spacer in the first region is greater than a density of the first spacer in the second region; a modulus of elasticity of a material of the first spacer in the first region An elastic modulus greater than the material of the first spacer in the second region. Among them, the elastic modulus refers to the stress divided by the direction in the unidirectional stress state, and the strain means that an external force is applied to the elastic body (the spacer), and the shape of the elastic body changes.

That is to say, the arrangement manner of the first spacer can be realized only by one of the above three setting manners, and the manner of setting the first spacer can also be according to any two of the above three setting manners. To achieve the first spacer, the arrangement of the first spacer can also be implemented according to the above three settings.

Since each of the three setting modes can achieve the effect of ensuring the uniformity of the thickness of the box, it is possible to use either one of them or a combination of two or three of them. The uniformity of the box thickness is achieved. For example, the principle of achieving uniformity of box thickness for each setting method is as follows:

When the initial height of the spacer at the center of the surface (for example, the center of the display substrate) is greater than the initial height of the spacers on both sides, the shape of the curved center spacer is compared to the spacer having the contour setting The change is large, so that a larger reaction force can be provided to suppress the further reduction of the spacing between the upper substrate and the lower substrate, thereby ensuring the uniformity of the thickness of the center and the sides of the curved surface. When the density of the spacers in the center of the curved surface is greater than the density of the spacers on both sides, the spacers in the center of the curved surface are deformed by the same amount as the spacers in the same density. In the case, since the density of the spacer in the center of the curved surface is large, a larger reaction force can be provided to suppress the further reduction of the spacing between the upper substrate and the lower substrate, thereby ensuring uniformity of the thickness of the center and both sides of the curved surface. When the elastic modulus of the material of the spacer at the center of the curved surface is greater than the elastic modulus of the material of the spacer on both sides, the spacer at the center of the curved surface is generated compared to the spacer provided with the same material. In the case of the same amount of deformation on both sides, since the spacer at the center of the curved surface has a large elastic modulus, it is possible to provide a larger reaction force to suppress the further reduction of the spacing between the upper substrate and the lower substrate, thereby ensuring the center of the curved surface. And the thickness of the box on both sides is uniform.

Several embodiments will be described below by way of example. It is easy to know that the specific implementations of other embodiments are similar:

1A is a side view of a display substrate according to an embodiment of the present disclosure, and FIG. 1B is a top view corresponding to FIG. 1A. Referring to FIGS. 1A and 1B, the substrate 100 is divided into a plurality of regions 100A in the row direction a. The plurality of regions 100A are substantially identical in shape and size, for example. The substrate 100 is, for example, a base substrate. For example, FIG. 1B shows three regions 100A. The intermediate portion of the three regions 100A may be referred to as the aforementioned first region, and the regions on both sides may be referred to as the aforementioned second region. The initial height of the first spacer 101 in the first region is greater than the initial height of the first spacer 101 in the second region. Here, the initial height of the spacer refers to the height in an uncompressed state. When the curved display panel is formed by using the display substrate, the first spacer 101 in the first region has a large shape variable, thereby generating a larger reaction force (ie, supporting force to any one of the substrates 100 and 200), and avoiding The thickness of the box is too small when the center of the surface is subjected to a large force.

For example, in the top view shown in FIG. 1B, the initial planar dimensions of the plurality of first spacers 101 are substantially the same. Here, substantially equal means that a tolerance of 3% to 5% is allowed.

Further, the initial heights of all the first spacers 101 of the two second regions in FIGS. 1A and 1B are equal. That is to say, the substrate can be divided into three regions in the row direction, and the first spacers in the two regions on the two sides are equal in initial height, and all the first regions in the middle of the three regions are equal. The spacers are initially of equal height. Only the first spacers of the two initial heights are designed, which is convenient to manufacture, and can alleviate the problem of poor consistency of the box thickness to some extent.

Further, the initial height of the first spacers of the regions located on both sides may be 60%-80% of the initial height of the first spacers in the intermediate region.

The area division manner shown in FIG. 1A and FIG. 1B is merely an example, and in practice, more areas may be set. When the area is set to the most, each area includes only one column of the first spacer. When each row is provided with a row of first spacers, a straight line extending in the column direction at the center of the substrate is an axis of symmetry, and the initial heights of the two columns of the first spacers symmetric about the axis of symmetry are the same and are symmetric. The initial heights of any two columns of the first spacer on the same side of the shaft are different. The column direction is, for example, perpendicular to the row direction. In this implementation manner, the initial height of the first spacers in any two columns on one side of the column where the center of the substrate is located is different, and since the initial height of the spacers gradually decreases from the center of the substrate to both sides, the first spacer The initial height of the object is sequentially changed in each column, which corresponds to the gradual change of the force of each part after the curved screen is formed, thereby ensuring the consistency of the thickness of the box.

For example, referring to FIG. 1D and FIG. 1E, the straight line A arranged along the column direction b where the center of the substrate 100 is located is an axis of symmetry, and the initial heights of the two columns of the first spacers 101 symmetric about the axis of symmetry are the same and are located at the axis of symmetry. The initial heights of any two columns of the first spacers 101 on the same side are different, so that the initial heights of the first spacers of the respective columns exhibit a gradual tendency.

Further, the initial height difference of any two adjacent columns of the first spacers may be equal. The initial height difference of the first spacer changes to ensure the consistency of the thickness of the box.

Further, the initial height of the first spacer having the smallest initial height may be 60%-80% of the initial height of the first spacer having the largest initial height.

2A is a side view of a display substrate according to an embodiment of the present disclosure, and FIG. 2B is a top view corresponding to FIG. 2A. The division method of the regions in FIGS. 2A and 2B is the same as that of FIGS. 1A and 1B, except that the initial heights of the first spacers of the respective regions in FIGS. 2A and 2B are the same, and the first spacers of the respective regions are the same. The elastic modulus of the material of the object (corresponding to different shades in the figure) is different. The modulus of elasticity of the material of the first spacer 101 in the first region is greater than the modulus of elasticity of the material of the first spacer 101 in the second region. When the curved display panel is formed by using the display substrate, the reaction force generated by the first spacer 101 in the first region is greater, and the thickness of the surface of the curved surface is prevented from being too small under the action of a large force.

Further, the elastic modulus of the material of all the first spacers 101 of the two second regions in FIGS. 2A and 2B is equal. For example, all of the first spacers 101 of the two second regions are of the same material. That is to say, the substrate can be sequentially divided into three regions in the row direction, and the elastic modulus of the materials of all the first spacers in the two regions on both sides of the three regions is equal, and the middle of the three regions is The material of all of the first spacers of the region has the same modulus of elasticity. Only the first spacer of two elastic moduli is designed, which is convenient to manufacture, and can alleviate the problem of poor consistency of the box thickness to some extent.

Further, the elastic modulus of the material of the first spacer located in the regions on both sides may be 60%-80% of the elastic modulus of the material of the first spacer in the intermediate portion.

For example, the first spacer may be made of a photoresist material, and the photoresist used in the regions on both sides may be composed of an acrylic resin, an epoxy resin, a crosslinking agent, a photoinitiator, and a solvent. The photoresist used in the middle region can be composed of a polyacrylic acid-polybutadiene-polyacrylic acid block copolymer, an epoxy resin, a crosslinking agent, a photoinitiator, and a solvent to ensure the middle portion. The modulus of elasticity of the material of a spacer is greater than the modulus of elasticity of the material of the first spacer located in the region on either side. As for the numerical relationship of the elastic modulus, it can be realized by adjusting the distribution ratios of the respective components, which will not be described in the present disclosure.

The area division manner shown in FIG. 2A and FIG. 2B is merely an example, and in practice, more areas may be set. When the area is set to the most, each area includes only one column of the first spacer. When each row is provided with a row of first spacers, a straight line extending in the column direction at the center of the substrate is an axis of symmetry, and the elastic modulus of the materials of the two rows of the first spacers symmetric about the axis of symmetry is equal. And the elastic modulus of the material of any two columns of the first spacers on the same side of the axis of symmetry is equal, and the structure can be as shown in FIG. 2D.

Further, the elastic modulus of the material of the first spacer having the smallest elastic modulus may be 60% to 80% of the elastic modulus of the material of the first spacer having the largest elastic modulus.

FIG. 3A is a side view of a display substrate according to an embodiment of the present disclosure, and FIG. 3B is a top view corresponding to FIG. 3A. The division method of the regions in FIGS. 3A and 3B is the same as that of FIGS. 1A and 1B except that the initial heights of the first spacers of the respective regions in FIGS. 3A and 3B are the same, and the first spacers of the respective regions are the same. The density of the objects is different. The density of the first spacer 101 in the first region is greater than the density of the first spacer 101 in the second region. When the curved display panel is formed by using the display substrate, the reaction force generated by the first spacer 101 in the first region is greater, and the thickness of the surface of the curved surface is prevented from being too small under the action of a large force.

In an embodiment of the present disclosure, the density of the first spacer in an area may be equal to the number of first spacers in the area divided by the number of columns of the first spacer in the area.

In the embodiment of the present disclosure, in order to facilitate the arrangement of the first spacer, the first spacer is arranged in such a manner that a straight line extending in the column direction at the center of the substrate is an axis of symmetry, and two columns symmetric about the axis of symmetry. The number of first spacers is the same. The column direction is, for example, perpendicular to the row direction.

Further, the density of the first spacers 101 of the two second regions in FIGS. 3A and 3B is equal. That is to say, the substrate can be sequentially divided into three regions in the row direction, and the density of the first spacers in the two regions on both sides of the three regions is equal. Only the first spacer of two densities is designed, which is convenient to manufacture, and can alleviate the problem of poor consistency of the box thickness to some extent.

Further, the density of the first spacers in the regions on both sides may be 40% to 50% of the density of the first spacers in the intermediate region.

The area division manner shown in FIG. 3A and FIG. 3B is only an example. In practice, more areas may be set. When the area is set to the most, each area includes only one column of the first spacer. When each row is provided with a row of first spacers, the number of first spacers in each column decreases from two rows of spacers in the middle of the substrate to two rows of spacers on the outermost sides.

Further, the number of first spacers of the least number of columns may be from 40% to 50% of the number of first spacers of the largest number of columns.

In the embodiments of the present disclosure, in addition to using the initial height, density, or modulus of elasticity of the material to design the first spacers in different regions on the substrate, two or three of the above parameters may be combined for different regions. The first spacer is designed. This is illustrated below by means of Figures 4 and 5:

As shown in FIG. 4, each region includes only one row of first spacers 101, and the first spacers 101 in the first region and the first spacers 101 in the second region are different in initial height, The modulus of elasticity is also different.

As shown in FIG. 5, the first spacers 101 in the first region and the first spacers 101 in the second region have different densities of the first spacers 101 except that the elastic modulus of the materials is different. .

In an embodiment of the present disclosure, the first spacer may be a primary spacer or a secondary spacer. When the first spacer is the main spacer, the structure can be seen in FIGS. 1A-1E, 2A-2D, 3A-3B, 4, and 5. When the first spacer is a secondary spacer, the structure can be seen in FIGS. 6A-6D, 7A-7D, 8A-8C, 9, and 10, and the display substrate can further include a main spacer. The pad may have the same distribution as that of FIGS. 1A-1E, 2A-2D, 3A-3B, 4, and 5, and details are not described herein again.

For example, the initial height of the main spacer is greater than or equal to the auxiliary spacer, and the cross-sectional area of the main spacer is larger than the auxiliary spacer. For details, refer to the attached drawings.

In the embodiment of the present disclosure, when the first spacer is a secondary spacer, the plurality of spacers further comprise a plurality of second spacers, and the arrangement direction of each of the second spacers is first with each column The spacers are arranged in parallel, and the second spacer is a main spacer; the second spacers in the plurality of regions are disposed according to at least one of the following manners: the second spacer in the first region The initial height is greater than or equal to the initial height of the second spacer in the second region; the density of the second spacer in the first region is greater than or equal to the density of the second spacer in the second region; The modulus of elasticity of the material of the second spacer within the region is greater than or equal to the modulus of elasticity of the material of the second spacer within the second region.

That is to say, the arrangement of the second spacers in the respective regions may be the same or different.

For example, an embodiment in which the second spacer adopts the same arrangement in each region can be referred to 6A-FIG. 6D, FIG. 7A-FIG. 7D, FIG. 8A-FIG. 8C, FIG. 9, and FIG. In 6A-Fig. 6D, Figs. 7A-7D, Figs. 8A-8C, Fig. 9, and Fig. 10, the second spacers 102 in each region are, for example, provided with the same initial height, modulus of elasticity, and density. The second spacer is implemented in different ways in various regions, and can be seen in Figures 11-12.

When the second spacers are arranged in different ways in different regions, the specific implementation may be the same as the first spacers, including various combinations. However, on the same substrate, the arrangement of the first spacers may be the same as or different from the arrangement of the second spacers. For example, on the display substrate shown in FIG. 11, the first spacers 101 are arranged in such a manner that the initial height is changed, and the second spacers 102 are arranged in such a manner that the elastic modulus of the material is changed. On the display substrate shown in Fig. 12, the first spacers 101 are arranged in such a manner that the elastic modulus of the material changes, and the second spacers 102 are arranged in such a manner as to change the initial height.

In the embodiment of the present disclosure, when only the first spacers are arranged in different regions, for example, the first spacers are arranged in one of the foregoing three manners, so that the design and manufacture are performed. It is relatively simple and it is easy to control the parameters of the spacer to achieve uniform thickness.

In the embodiment of the present disclosure, when the first spacer and the second spacer are differently arranged in different regions, for example, on the same substrate, the first spacer is disposed and the second spacer is disposed. The objects are arranged in the same manner, and the first spacer and the second spacer are disposed only by one of the foregoing three arrangement manners, so that the design and the preparation are relatively simple, and the parameters of the spacer are conveniently controlled to reach the box. Thick and uniform.

In the embodiment of the present disclosure, the substrate 100 may be an array substrate or a color film substrate. When the substrate is an array substrate, the other substrate 200 is a color film substrate; when the substrate is a color film substrate, the other substrate 200 is For the array substrate.

The embodiment of the present disclosure further provides a display panel including the foregoing display substrate. For details of the structure of the display panel, refer to FIG. 1C, FIG. 2C, FIG. 6C, FIG. 7C, etc., which are not described herein.

For example, the primary spacer and the secondary spacer in the embodiments of the present disclosure are both column spacers.

In the embodiment of the present disclosure, when the display substrate is used to form a curved liquid crystal display panel, the display substrate needs to be bent, and the stress is concentrated in the middle portion when the display substrate is bent, so that the center force of the curved surface is greater than the force on both sides, however, The inhibitory force of the display substrate provided by the embodiment of the present disclosure is closer to the spacer in the center of the display substrate, that is, the spacer at the center of the display substrate can provide a larger reaction force to suppress the upper substrate and the lower substrate. The spacing between the two is further reduced, so that the thickness of the middle portion of the curved liquid crystal display panel made of the display substrate is not reduced compared with the two sides, thereby ensuring uniformity of the thickness of the center and both sides of the curved surface. In addition, after the display substrate in which the spacers are arranged in the above manner is formed into a curved liquid crystal display panel, when the curved liquid crystal display panel is subjected to the horizontal direction force, the suppression force provided by the spacers at the center of the curved surface is large, thereby making the The friction between the spacer and the upper substrate and the lower substrate of the curved liquid crystal display is sufficiently large, which can effectively prevent the position of the spacer from shifting and avoid the occurrence of wiping.

The present disclosure also provides a display device including the display panel as described above. For example, the display device provided by the embodiment of the present disclosure may be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.

The above is only the exemplary embodiments of the present disclosure, and is not intended to limit the disclosure. Any modifications, equivalents, improvements, etc. within the spirit and scope of the present disclosure are intended to be included in the scope of the present disclosure. .

Claims

A display substrate comprising:

a first substrate;

a plurality of first spacers on the first substrate configured to maintain separation of the first substrate and a second substrate, wherein in a top view of the display substrate, the plurality of first The initial planar dimensions of the spacers are substantially the same,

Wherein the first spacer located in the first region is configured to jointly provide the first support to the second substrate when the first substrate and the second substrate have a space in the first region force,

The first spacer located in the second region is configured to collectively provide a second supporting force to the second substrate when the first substrate and the second substrate have the interval in the second region The first supporting force is substantially greater than the second supporting force,

Wherein, in the top view, the first area and the second area do not overlap each other but are substantially the same in size and shape.
The display substrate according to claim 1, wherein the display substrate has an axis of symmetry, and in the plan view, the first region is closer to the axis of symmetry with respect to the second region.
The display substrate according to claim 1 or 2, wherein in the cross-sectional view perpendicular to the axis of symmetry, the first spacer in the second region in a direction away from the axis of symmetry The initial height of the object decreases sequentially.
The display substrate according to claim 1 or 2, wherein the first spacer located in the third region is configured to have the first substrate and the second substrate in the third region Providing a third supporting force to the second substrate at intervals, the third supporting force being substantially equal to the second supporting force,

The first spacers located in the first region have the same first initial height, and the first spacers located in the second region and the third region have the same second initial height.
The display substrate according to any one of claims 1 to 4, wherein the first spacers in the first region and the second region are disposed in at least one of the following manners:

An initial height of any one of the first spacers in the first region is greater than an initial height of any of the first spacers in the second region;

The number of the first spacers in the first area is greater than the number of the first spacers in the second area;

The modulus of elasticity of the material of the first spacer in the first region is greater than the modulus of elasticity of the material of the first spacer in the second region.
The display substrate according to any one of claims 1 to 5, wherein, in the plan view, the third region and the first region and the second region do not overlap each other, the third The region is symmetric with respect to the second region with respect to the axis of symmetry.
The display substrate according to claim 6, wherein the first spacer located in the third region and the first spacer located in the second region are in an initial height, a quantity, and an elastic modulus At least one aspect is essentially the same.
The display substrate according to claim 6 or 7, wherein in the plan view, the first region is located between the second region and the third region in a direction perpendicular to the axis of symmetry .
The display substrate according to any one of claims 1 to 8, further comprising: a plurality of second spacers on the first substrate.
The display substrate according to claim 9, wherein the plurality of second spacers have the same size and smaller than the size of the plurality of first spacers,

The plurality of second spacers located in the first region are configured to collectively provide a third to the second substrate when the first substrate and the second substrate have a space in the first region Supporting force,

The second spacer located in the second region is configured to collectively provide a fourth supporting force to the second substrate when the first substrate and the second substrate have the interval in the second region The third supporting force is substantially greater than the fourth supporting force.
A liquid crystal display panel comprising the display substrate according to any one of claims 1 to 10.
A curved liquid crystal display device comprising the display panel of claim 11.