CN103777408B - A kind of chock insulator matter, display panel and display device - Google Patents

Abstract

The invention discloses a spacer, a display panel and a display device. The spacer includes a base and a support column arranged on the base, wherein the width of the support column is smaller than that of adjacent pixel units on the display panel. The minimum distance between them; the cross-sectional area of the base is larger than the cross-sectional area of the support column, and the height of the base is not higher than the height of the support column. In the above technical solution, by using the spacer whose width of the support column is smaller than the minimum distance between adjacent pixel units to support the substrate, the influence of the spacer on the rubbing roller is reduced, thereby improving the alignment of the substrate. The friction effect of the film can further improve the display effect of the display device.

Description

Spacer, display panel and display device

technical field

The present invention relates to the technical field of liquid crystal display devices, in particular to a spacer, a display panel and a display device.

Background technique

In a liquid crystal display, an alignment film is indispensable, and its function is to make the liquid crystal molecules filled between the array substrate and/or the color filter substrate be arranged in a certain direction. The alignment film needs to be rubbed and oriented when it is set. The rubbing method is a representative method of liquid crystal molecular alignment. As shown in Figure 3, when the alignment film is oriented, the substrate 4 is placed on the base 5, and the rubbing roller Quickly rubbing and rolling on the surface of the alignment film, the rubbing cloth 3 attached to the rubbing roller 2 rubs the alignment film, so that the side chains of the PI molecules are arranged in a certain direction, and the liquid crystal molecules are arranged according to the direction of the side chains of the PI molecules on the alignment film. The directions are arranged in order. Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4 together, when the alignment layer on the substrate based on the TFT and CF design in the prior art is rubbed and oriented, the spacer 1 provided on the substrate (as shown in Fig. 1 and Fig. 2) and other protruding parts will block the rubbing of the rubbing cloth during the rubbing process after PI coating. The insufficient restoring force at the high rotational speed of the rubbing roller makes the friction strength of the alignment film on the back side of the spacer 1 (relative to the rubbing direction) insufficient, resulting in insufficient PI anchoring ability, resulting in abnormal orientation of the liquid crystal, and causing display The low contrast ratio of the panel affects the display effect of the display device.

Contents of the invention

The invention provides a spacer, a display panel and a display device, which are used to improve the display effect of the display device.

The present invention provides a spacer for a display panel. The spacer includes a base and a support column arranged on the base, wherein the width of the support column is smaller than that between adjacent pixel units on the display panel. The minimum distance between them; the cross-sectional area of the base is larger than the cross-sectional area of the support column, and the height of the base is not higher than the height of the support column.

In the above technical solution, by using the spacer whose width of the support column is smaller than the minimum distance between adjacent pixel units to support the substrate, the influence of the spacer on the rubbing roller is reduced, thereby improving the alignment of the substrate. The friction effect of the film can further improve the display effect of the display device.

Preferably, the ratio of the height of the base to the height of the support column is between 1:4 and 1:1. Further improve the impact of the base on the friction roller.

Preferably, the base is a truncated conical base, the side surfaces of the support column include two opposite planes and two opposite partial conical surfaces, and the partial conical surfaces are located in the same cone as the sides of the truncated conical base. planes, the distances between the two planes and the axis of the frustum-shaped base are equal. The friction effect of the alignment film is improved by adopting the base of the truncated cone structure and the support column.

Preferably, the base is a cylindrical base, the side of the support column includes two opposite planes and two opposite partial cylindrical surfaces, and the partial cylindrical surface and the side of the cylindrical base are located on the same cylindrical surface , the distances between the two planes and the axis of the cylindrical base are equal. The friction effect of the alignment film is improved by adopting a base with a cylindrical structure and a support column.

Preferably, the base and the support column are integrally structured. Therefore, the supporting strength of the spacer is enhanced, and the processing of the spacer is also facilitated.

Preferably, the spacer is an elastic resin spacer. Has a good supporting effect.

The present invention also provides a display panel, which includes a first substrate and a second substrate, and at least one spacer of any one of the above, wherein,

Each of the spacers is disposed between the first substrate and the second substrate;

The support column of the spacer is in contact with the first substrate, and when there are two planes in the side of the support column, the two planes are parallel to the friction direction when the first substrate is rubbed;

The base of the spacer is in contact with the second substrate.

In the above technical solution, by using the above spacer, the friction effect of the alignment film on the first substrate and the second substrate is improved, thereby improving the alignment order of the liquid crystal molecules filled in the first substrate and the second substrate, and further Improved the display effect of the display panel.

Preferably, the first substrate is an array substrate, and the second substrate is a color filter substrate.

The present invention also provides a display device, which includes any one of the above display panels.

In this technical solution, by adopting the above-mentioned spacer, the friction effect of the alignment film on the first substrate and the second substrate is improved, thereby improving the alignment order of the liquid crystal molecules filled in the first substrate and the second substrate, and further The display effect of the liquid crystal display device is improved.

Description of drawings

Fig. 1 is the front view of the spacer in the prior art;

Figure 2 is a top view of a spacer in the prior art;

FIG. 3 is a reference schematic diagram of an alignment film on a substrate in the prior art during rubbing;

Fig. 4 is a reference schematic diagram of the state of the spacer in the prior art when the alignment film is rubbed;

5 is a schematic structural diagram of a spacer provided by an embodiment of the present invention;

Figure 6 is a side view of a spacer provided by an embodiment of the present invention;

7 is a top view of a spacer provided by an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of another spacer provided by an embodiment of the present invention;

Fig. 9 is a reference diagram of the state of the spacer provided by the embodiment of the present invention when the alignment film is rubbed;

FIG. 10 is a schematic structural diagram of a display panel provided by an embodiment of the present invention.

Reference signs:

1-spacer (prior art) 2-friction roller 3-friction cloth

4-Substrate 5-Abutment 6-Pixel unit

10-spacer 11-support column 12-base

20-pixel unit 30-first substrate 40-second substrate

detailed description

In order to improve the display effect of the display device, an embodiment of the present invention provides a spacer, a display panel, and a display device. In the technical solution of the present invention, the width of the support column is smaller than the minimum width of two adjacent pixel units. The space structure improves the rubbing effect of the alignment film, thereby improving the alignment effect of liquid crystal molecules, and further improving the display effect of the display device. In order to make the object, technical solution and advantages of the present invention clearer, the following non-limiting examples are taken as examples to further describe the present invention in detail.

As shown in Fig. 5, Fig. 6 and Fig. 7, Fig. 5 shows the structure of a kind of spacer provided by the embodiment of the present invention, Fig. 6 and Fig. 7 respectively show the side of the spacer provided by this embodiment View and top view of the structure; taking the placement direction of the spacer shown in FIG. 7 as an example, the width of the support column in the embodiment refers to the distance d in the vertical direction from the end surface of the support.

An embodiment of the present invention provides a spacer 10 for a display panel. The spacer 10 includes a base 12 and a support column 11 arranged on the base 12, wherein the width of the support column 11 is smaller than that of the adjacent display panel. The minimum spacing between the pixel units 20; the cross-sectional area of the base 12 is greater than the cross-sectional area of the support column 11, and the height of the base 12 is not higher than the height of the support column 11.

In the above embodiments, the width of the support used is smaller than the minimum distance between adjacent pixel units 20 on the display panel, thereby improving the rubbing effect of the alignment film. Specifically, when the alignment film provided on the substrate using the spacer 10 provided by this embodiment is rubbed, its working state is shown in Figure 3 and Figure 9, and the rubbing roller 2 rotates along the direction shown in the figure when rubbing, When the rubbing roller 2 moves onto the spacer 10, since the width d of the set support is smaller than the minimum distance D between adjacent pixel units 20, the fibers on the rubbing cloth 3 on the rubbing roller 2 are supported The opening angle of the object is small, and after the rubbing roller 2 rolls over the support column 11, the fiber can quickly return to the original position, thereby improving the friction effect of the alignment film located behind the spacer 10, thereby improving the liquid crystal molecular The arrangement effect improves the display effect of the display device.

In order to further improve the friction effect of the alignment film and avoid insufficient friction of the alignment film in the rubbing direction caused by the base 12 being too high, preferably, the ratio of the height of the base 12 to the height of the support column 11 is between 1:4 and 1:1 between. Specifically, the ratio between the height of the base 12 and the height of the support column 11 can be: 1:1; 1:1, 5; 1:2; 1:3; ratio between. Preferably, the ratio of the height of the base 12 to the height of the supporting pillars 11 is 1:3, so that the base 12 can provide sufficient supporting strength, and at the same time avoid that the height of the base 12 is too high to affect the friction effect of the alignment film.

The shapes of the base 12 and the support column 11 on the spacer 10 provided in this embodiment can be selected from different shapes, and will be described in specific embodiments below.

Example 1

Continuing to refer to Fig. 5, Fig. 6 and Fig. 7, the base 12 of the spacer 10 is a conical base, and the side of the supporting column 11 includes two opposite planes and two opposite partial conical surfaces, and the partial conical surface and the circular The side surfaces of the truncated base are located on the same conical surface, and the distances between the two planes and the axis of the truncated base are equal.

Specifically, as shown in Figure 5, the base 12 is a conical structure, and the support column 11 is a special-shaped cylinder, which is similar to the structure formed by cutting off two parts of the entity symmetrically along the axial direction on the conical structure. . Preferably, when the two solid parts are cut off, the cut plane is tangent to the circular end face at the top of the support column 11, that is, the two parallel surfaces in the side of the support column 11 are respectively tangent to the circular end surface of the support column 11, thereby maximizing The area of the top end surface of the support column 11 is reserved to improve the support strength of the support column 11. In addition, since the support column 11 is a structure with a large bottom end and a small top end, it can provide greater support when supporting the substrate. At the same time, since the two side planes of the support column 11 are arranged symmetrically with respect to the axis of the truncated cone-shaped base 12, when the spacer 10 is placed on the substrate, the two side planes of the support column 11 are parallel to the rubbing direction, thereby ensuring The two side planes are at the same distance from the pixel unit 20 , and the support column 11 has the same influence on the rubbing cloth when the rubbing roller rubs, and it is also convenient to place the spacer 10 .

Example 2

As shown in Figure 8, Figure 8 shows the structure of another spacer provided in this embodiment, the base 12 is a cylindrical base, and the side of the support column 11 includes two opposite planes and two opposite partial cylinders surface, and part of the cylindrical surface is located on the same cylindrical surface as the side of the cylindrical base, and the distance between the two planes and the axis of the cylindrical base is equal.

Specifically, as shown in Figure 5, the base 12 is a cylindrical structure, and the support column 11 is a special-shaped cylinder, similar to the structure formed by cutting off two parts of the entity symmetrically along the axial direction on the cylindrical structure. . Preferably, the two side planes of the support column 11 are arranged symmetrically with respect to the axis of the cylindrical base, so that when the spacer 10 is placed on the substrate, the two side planes of the support column 11 are parallel to the rubbing direction, thereby ensuring The two side planes are at the same distance from the pixel unit 20 , and the support column 11 has the same influence on the rubbing cloth when the rubbing roller rubs, and it is also convenient to place the spacer 10 .

It should be understood that the shape of the spacer 10 provided in this embodiment is not limited to the specific structures listed in the above specific embodiments 1 and 2, and any other practicable structures can be applied to this embodiment. For example, the end surface of the base 12 is a polygonal, rectangular or elliptical cylinder, table, etc. can be applied to this embodiment, and its principle is similar to the above-mentioned specific embodiments, and will not be repeated here.

In order to further improve the supporting strength of the spacer 10 , preferably, the base 12 and the supporting column 11 are integrally structured. When the base 12 and the support column 11 have the structures described in the above specific embodiment 1 and embodiment 2, the spacer 10 is the remaining structure after two parts of the frustum or cylinder are cut symmetrically along the axis.

The spacer 10 in the above embodiment is preferably a spacer 10 made of an elastic resin material, but it is not limited to an elastic resin material, and can also be a spacer 10 made of other materials applicable to this embodiment. .

As shown in FIG. 10 , FIG. 10 shows a schematic structural diagram of the display panel provided by this embodiment.

An embodiment of the present invention also provides a display panel, which includes a first substrate 30 and a second substrate 40, and at least one spacer 10 described above, wherein,

Each spacer 10 is disposed between the first substrate 30 and the second substrate 40;

The support column 11 of the spacer 10 is in contact with the first substrate 30, and when there are two planes in the side of the support column 11, the two planes are parallel to the rubbing direction of the first substrate 30 when rubbing;

The base 12 of the spacer 10 is in contact with the second substrate 40 .

In this embodiment, by using the spacer 10 provided in the above embodiment, the friction effect of the alignment film on the first substrate 30 and the second substrate 40 is improved, thereby improving the filling of the first substrate 30 and the second substrate. The arrangement order of the liquid crystal molecules of 40 improves the display effect of the display panel. The first substrate 30 is a color filter substrate, and the second substrate 40 is an array substrate.

An embodiment of the present invention also provides a display device, which includes any one of the above display panels.

In this embodiment, the display device can be any product or component with a display function such as a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, and the like. The display device provided in this embodiment improves the friction effect of the alignment film on the first substrate 30 and the second substrate 40 by using the spacer 10 provided in the above-mentioned embodiment, thereby improving the degree of filling in the first substrate 30 and the second substrate 40. The arrangement order of the liquid crystal molecules on the substrate 40 further improves the display effect of the liquid crystal display device.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (7)

1. for a chock insulator matter for display panel, it is characterized in that, comprise base and be arranged on the support column on described base, wherein, the width of described support column is less than the minimum spacing between pixel cell adjacent on display panel; The cross-sectional area of described base is greater than the cross-sectional area of described support column, and the height of described base is not higher than the height of described support column; Wherein, described base is truncated cone-shaped base, the side of described support column comprises two relative planes and two relative part-conical faces, and the side of described part-conical face and described truncated cone-shaped base is positioned at same circular conical surface, described in described two plan ranges, the distance of the axis of truncated cone-shaped base is equal; Or,

Described base is cylindrical base, the side of described support column comprises two relative planes and two relative partial cylindrical surface, and the side of described partial cylindrical surface and described cylindrical base is positioned at the same face of cylinder, described in described two plan ranges, the distance of the axis of cylindrical base is equal.

2. chock insulator matter as claimed in claim 1, it is characterized in that, the ratio of described substructure height and described support column height is between 1:4 ~ 1:1.

3. chock insulator matter as claimed in claim 1 or 2, it is characterized in that, described base and described support column are structure as a whole.

4. chock insulator matter as claimed in claim 3, it is characterized in that, described chock insulator matter is elastic resin chock insulator matter.

5. a display panel, is characterized in that, comprises first substrate and second substrate, and at least one chock insulator matter as described in any one of Claims 1 to 4, wherein,

Each described chock insulator matter is arranged between described first substrate and second substrate;

The support column of described chock insulator matter contacts with described first substrate, and when having two planes in the side of described support column, described two planes are parallel to frictional direction during first substrate friction;

The base of described chock insulator matter contacts with described second substrate.

6. display panel as claimed in claim 5, it is characterized in that, described first substrate is array base palte, and described second substrate is color membrane substrates.

7. a display device, is characterized in that, comprises the display panel as described in claim 5 or 6.