Display panel, manufacturing method thereof and display device

Abstract

The invention belongs to the field of display, and particularly relates to a display panel and a manufacturing method thereof and a display device.The display panel comprises a first substrate, a second substrate and a spacer, the second substrate is arranged on one side of the first substrate, one of the first substrate and the second substrate is an array substrate, and the other one of the first substrate and the second substrate is an opposite substrate; the spacer is arranged between the first base plate and the second base plate, the spacer comprises a spacer column and a ball, the spacer column is arranged on the first base plate, the ball is arranged at the top, away from the first base plate, of the spacer column, and the ball can roll under the acting force applied by the second base plate. Due to the fact that the balls are arranged in the containing grooves in the rolling mode, friction between the spacers and the second substrate is rolling friction, the shortening speed of the tops of the spacers due to abrasion is greatly reduced, uneven display caused by thickness changes of a liquid crystal box is improved, and the display effect of the display panel is further improved.

Description

Technical Field

[0001] The present application belongs to the field of display, and specifically relates to a display panel and a manufacturing method thereof, and a display device. Background Art

[0002] With the development of display technology, Thin Film Transistor Liquid Crystal Display (TFT-LCD) has been widely used in various consumer electronic products such as mobile phones, televisions, digital cameras, and laptops due to its advantages of high image quality, power saving, and mature and stable manufacturing process, becoming the mainstream of display devices.

[0003] The liquid crystal display screen includes an array substrate, an opposing substrate, and a liquid crystal layer disposed between the array substrate and the opposing substrate. In addition, the liquid crystal display screen includes a spacer, which is disposed in the liquid crystal layer and supported between the array substrate and the opposing substrate to maintain the thickness of the liquid crystal cell.

[0004] When the LCD screen is subjected to external force (such as pressing and falling) during use, the spacer and the array substrate or the opposing substrate will move relative to each other, and the top of the spacer will be worn, resulting in a decrease in the thickness of the liquid crystal box, which in turn causes uneven display (Mura), affecting the display effect of the LCD screen. Summary of the invention

[0005] The purpose of the present application is to provide a display panel and a manufacturing method thereof, and a display device, so as to reduce the wear on the top of the spacer and improve the display unevenness caused by the thickness change of the liquid crystal box.

[0006] In order to achieve the above object, the present application provides a display panel, including:

[0007] a first substrate;

[0008] A second substrate is disposed on one side of the first substrate, wherein one of the first substrate and the second substrate is an array substrate and the other is an opposing substrate;

[0009] A spacer is arranged between the first substrate and the second substrate, and the spacer includes a spacer column and a ball. The spacer column is arranged on the first substrate, and the ball is arranged on the top of the spacer column away from the first substrate. The ball can roll under the force applied by the second substrate.

[0010] Optionally, a receiving groove is provided at the top of the spacer column, and the ball is rollably disposed in the receiving groove, and the depth of the receiving groove is smaller than the diameter of the ball.

[0011] Optionally, the depth of the accommodating groove is greater than the radius of the ball.

[0012] Optionally, the spacer also includes a positioning retaining ring, which is arranged at the end of the spacer column away from the first substrate, the positioning retaining ring is connected to the spacer column, the inner hole diameter of the positioning retaining ring is smaller than the diameter of the ball, and the height of the positioning retaining ring relative to the bottom surface of the accommodating groove is smaller than the diameter of the ball.

[0013] Optionally, the inner hole wall of the positioning retaining ring is a spherical surface, and the radius of the spherical surface is greater than or equal to the radius of the ball, and the diameter of the inner hole of the positioning retaining ring close to the hole opening of the spacer column is greater than the diameter of the inner hole of the positioning retaining ring away from the hole opening of the spacer column.

[0014] Optionally, the spacer column and the positioning retaining ring are made of the same material, the spacer column and the positioning retaining ring are made of ultraviolet curing resin, and the ball is made of the same material as or different from the spacer column.

[0015] The present application also provides a method for manufacturing a display panel, comprising:

[0016] providing a first substrate;

[0017] Forming a spacer column on the first substrate, wherein a top of the spacer column away from the first substrate is provided with a receiving groove;

[0018] A ball is installed in the receiving groove, the ball is rollably arranged in the receiving groove, and the depth of the receiving groove is smaller than the diameter of the ball;

[0019] The second substrate is paired with the first substrate to form a liquid crystal box, the balls and the spacers are both located in the frame glue between the first substrate and the second substrate, one of the first substrate and the second substrate is an array substrate and the other is an opposing substrate.

[0020] Optionally, the method for manufacturing the display panel further includes:

[0021] Before the second substrate and the first substrate are combined to form a liquid crystal cell, a third spacer material layer is formed on the side of the spacer column away from the first substrate, wherein the third spacer material layer at least covers the spacer column and the ball bearings;

[0022] A portion of the third spacer material layer is removed to form a positioning retaining ring, wherein the height of the positioning retaining ring relative to the bottom surface of the accommodating groove is smaller than the diameter of the ball, and the depth of the accommodating groove is greater than the radius of the ball.

[0023] Optionally, the method for manufacturing the display panel further includes:

[0024] Before installing the ball, a supporting boss is formed at the bottom of the receiving groove;

[0025] When the second substrate and the first substrate are assembled to form a liquid crystal box, the area inside the sealant is evacuated to allow the rolling ball to crush the supporting boss, thereby separating the rolling ball from the positioning retaining ring.

[0026] The present application also provides a display device, comprising:

[0027] Backlight module;

[0028] The display panel is arranged on the light-emitting side of the backlight module.

[0029] The display panel and its manufacturing method, and the display device disclosed in the present application have the following beneficial effects:

[0030] In the present application, the display panel includes a first substrate, a second substrate and a spacer, the second substrate is arranged on one side of the first substrate, the spacer is arranged between the first substrate and the second substrate, the spacer includes a spacer column and a ball, the spacer column is arranged on the first substrate, the ball is arranged on the top of the spacer column away from the first substrate, and the ball can roll under the force applied by the second substrate. Since the ball is rollably arranged in the receiving groove, the friction between the spacer and the second substrate is rolling friction, and the speed at which the top of the spacer is shortened by wear is greatly slowed down, thereby improving the display unevenness caused by the change in the thickness of the liquid crystal box, thereby improving the display effect of the display panel.

[0031] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0032] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 It is a schematic diagram of the structure of the display panel in the first embodiment of the present application.

[0035] Figure 2 yes Figure 1 A partial enlarged schematic diagram of position A in the middle.

[0036] Figure 3It is a flow chart of a method for manufacturing a display panel in the second embodiment of the present application.

[0037] Figure 4 It is a schematic diagram of forming a column part in the second embodiment of the present application.

[0038] Figure 5 It is a schematic diagram of forming the groove wall portion and the supporting boss in the second embodiment of the present application.

[0039] Figure 6 It is a schematic diagram of forming a positioning retaining ring in the second embodiment of the present application.

[0040] Figure 7 It is a schematic diagram of forming a liquid crystal box in the second embodiment of the present application.

[0041] Figure 8 It is a schematic diagram of the structure of the display device in the third embodiment of the present application.

[0042] Description of reference numerals:

[0043] 10. Display panel;

[0044] 100, a first substrate; 200, a second substrate;

[0045] 300, spacer; 310, spacer column; 311, column body; 312, groove wall; 313, receiving groove; 320, ball; 330, positioning retaining ring; 340, supporting boss;

[0046] 400, frame glue; 500, liquid crystal layer;

[0047] 20. Backlight module. DETAILED DESCRIPTION

[0048] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0049] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0050] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0051] Embodiment 1

[0052] See also Figure 1 and Figure 2 As shown, in this embodiment, the display panel 10 includes a first substrate 100, a second substrate 200 and a spacer 300. The second substrate 200 is disposed on one side of the first substrate 100, and one of the first substrate 100 and the second substrate 200 is an array substrate and the other is an opposing substrate. The opposing substrate includes a color filter substrate. For example, the first substrate 100 is an array substrate, and the second substrate 200 is a color filter substrate.

[0053] The spacer 300 is arranged between the first substrate 100 and the second substrate 200. The spacer 300 includes a spacer column 310 and a ball 320. The spacer column 310 is arranged on the first substrate 100, and the ball 320 is arranged on the top of the spacer column 310 away from the first substrate 100. The ball 320 can roll under the force applied by the second substrate 200, that is, when relative motion occurs between the spacer 300 and the second substrate 200, the friction between the two is rolling friction.

[0054] In addition, the display panel 10 may further include a sealant 400 and a liquid crystal layer 500. The sealant 400 is disposed between the first substrate 100 and the second substrate 200 and is disposed around the edges of the first substrate 100 and the second substrate 200. The spacer 300 and the liquid crystal layer 500 are both disposed in the sealant 400. The first substrate 100, the spacer 300 and the second substrate 200 form a liquid crystal box. The spacer 300 is used to support the first substrate 100 and the second substrate 200, maintain the thickness of the liquid crystal box, and make the thickness of the liquid crystal layer 500 uniform.

[0055] In some technical solutions, the top of the spacer of the display panel is in direct contact with the array substrate or the counter substrate. When the display panel is subjected to external force (such as pressing and falling, etc.) during use, the spacer and the array substrate or the counter substrate will move relative to each other, and the top of the spacer will be worn and gradually shortened, resulting in a reduction in the thickness of the liquid crystal cell, which in turn causes uneven display and affects the display effect of the display panel.

[0056] In this embodiment, the display panel 10 includes a first substrate 100, a second substrate 200 and a spacer 300. The second substrate 200 is arranged on one side of the first substrate 100. The spacer 300 is arranged between the first substrate 100 and the second substrate 200. The spacer 300 includes a spacer column 310 and a ball 320. The spacer column 310 is arranged on the first substrate 100. The ball 320 is arranged on the top of the spacer column 310 away from the first substrate 100. The ball 320 can roll under the force applied by the second substrate 200. Since the ball 320 is rollably arranged in the receiving groove 313, the friction between the spacer 300 and the second substrate 200 is rolling friction, and the speed at which the top of the spacer 300 is shortened by wear is greatly slowed down, thereby improving the display unevenness caused by the change in the thickness of the liquid crystal box, thereby improving the display effect of the display panel 10.

[0057] In some embodiments, a receiving groove 313 is disposed at the top of the spacer column 310, and the ball 320 is rollably disposed in the receiving groove 313, and the depth of the receiving groove 313 is less than the diameter of the ball 320. The depth of the receiving groove 313 is less than the diameter of the ball 320, that is, the ball 320 is partially located in the receiving groove 313 and partially exposed from the receiving groove 313, and the ball 320 is rollably disposed in the receiving groove 313, that is, the orthographic projection of the groove wall of the receiving groove 313 on the first substrate 100 is located outside the orthographic projection of the ball 320 on the first substrate 100. The spacer column 310 may include a column portion 311 and a groove wall portion 312. The column portion 311 may be a cylinder, a truncated cone, a rectangular column or a quadrangular column, etc. The column portion 311 is arranged on the first substrate 100, and the groove wall portion 312 is located on the side of the column portion 311 away from the first substrate 100. The groove wall portion 312 is arranged around the edge of the top surface of the column portion 311 to form a receiving groove 313 at the top of the column portion 311.

[0058] The ball 320 is partially exposed from the receiving groove 313 to ensure that the ball 320 can contact the second substrate 200 . The ball 320 is partially located in the receiving groove 313 to prevent the ball 320 from falling out of the receiving groove 313 .

[0059] In some embodiments, the depth of the receiving groove 313 is greater than the radius of the ball 320. For example, the depth of the receiving groove 313 is 1 to 1.5 times the radius of the ball 320.

[0060] It should be understood that the smaller the depth of the receiving groove 313, the easier it is for the ball 320 to fall off from the receiving groove 313, and the greater the depth of the receiving groove 313, the higher the manufacturing accuracy requirements for the spacer column 310 and the ball 320 to prevent the spacer column 310 from contacting the second substrate 200. The depth of the receiving groove 313 is slightly larger than the radius of the ball 320, which can prevent the ball 320 from falling off from the receiving groove 313 and prevent the spacer column 310 from contacting the second substrate 200 under lower manufacturing accuracy requirements.

[0061] In some embodiments, the spacer 300 further includes a positioning retaining ring 330, which is disposed at the end of the spacer column 310 away from the first substrate 100, and is connected to the spacer column 310. The inner diameter of the positioning retaining ring 330 is smaller than the diameter of the ball 320, and the height of the positioning retaining ring 330 relative to the bottom surface of the receiving groove 313 is smaller than the diameter of the ball 320. In other words, the ball 320 is clamped between the bottom surface of the receiving groove 313 and the positioning retaining ring 330, and the side of the ball 320 away from the first substrate 100 is partially exposed from the positioning retaining ring 330, so as to ensure that the ball 320 can contact the second substrate 200.

[0062] The positioning retaining ring 330 is disposed at one end of the spacer column 310 away from the first substrate 100 and connected to the spacer column 310 . The positioning retaining ring 330 can block the ball 320 to prevent the ball 320 from falling out of the receiving groove 313 .

[0063] In some embodiments, the inner hole wall of the positioning retaining ring 330 is a spherical surface, and the radius of the spherical surface is greater than or equal to the radius of the ball 320. The diameter of the inner hole of the positioning retaining ring 330 close to the hole of the spacer column 310 is greater than the diameter of the inner hole of the positioning retaining ring 330 away from the hole of the spacer column 310.

[0064] The inner hole of the positioning retaining ring 330 cooperates with the ball 320 , and the inner hole wall of the positioning retaining ring 330 is a spherical surface, so as to avoid sharp corners or inclined surfaces hindering the rotation of the ball 320 , thereby reducing the wear on the ball 320 .

[0065] In some embodiments, the spacer column 310 and the positioning retaining ring 330 are made of the same material. For example, the spacer column 310 and the positioning retaining ring 330 are made of ultraviolet curing resin. The ball 320 is made of the same material as the spacer column 310 or different from the material of the spacer column 310.

[0066] The spacer column 310 and the positioning retaining ring 330 are made of the same material, and the spacer column 310 and the positioning retaining ring 330 can be connected as a whole, which improves the strength of the connection structure between the spacer column 310 and the positioning retaining ring 330, and can prevent the positioning retaining ring 330 and the ball 320 from falling off as a whole. The ball 320 and the spacer column 310 are made of the same material, that is, the spacer 300 is made of a single material as a whole, which can reduce the types of raw materials and thus reduce the production cost. The ball 320 and the spacer column 310 are made of different materials, and the material of the ball 320 can be selected to have a smaller friction coefficient with the positioning retaining ring 330 and the spacer column 310, so as to reduce the sliding friction between the ball 320 and the second substrate 200, and at the same time reduce the wear caused by the friction between the ball 320 and the positioning retaining ring 330 and the spacer column 310.

[0067] Embodiment 2

[0068] The present application also provides a method for manufacturing a display panel, which is used to manufacture the display panel 10 disclosed in the first embodiment. Figures 3 to 7 As shown, the manufacturing method of the display panel in this embodiment includes:

[0069] S100: providing a first substrate 100;

[0070] S200: forming a spacer column 310 on the first substrate 100 , wherein a receiving groove 313 is disposed at a top of the spacer column 310 away from the first substrate 100 ;

[0071] S300: installing the ball 320 in the receiving groove 313, wherein the ball 320 is rollably disposed in the receiving groove 313, and the depth of the receiving groove 313 is smaller than the diameter of the ball 320;

[0072] S400: The second substrate 200 and the first substrate 100 are paired to form a liquid crystal box, the balls 320 and the spacers 310 are both located in the frame glue 400 between the first substrate 100 and the second substrate 200, and one of the first substrate 100 and the second substrate 200 is an array substrate and the other is an opposing substrate.

[0073] In this embodiment, a spacer column 310 is formed on the first substrate 100, and a receiving groove 313 is provided at the top of the spacer column 310 away from the first substrate 100, and then a ball 320 is installed in the receiving groove 313, and the ball 320 is rollably arranged in the receiving groove 313, and the depth of the receiving groove 313 is less than the diameter of the ball 320. The spacer column 310 and the ball 320 form a spacer 300, and then the second substrate 200 and the first substrate 100 are paired to form a liquid crystal box, and one of the first substrate 100 and the second substrate 200 is an array substrate and the other is an opposing substrate. Since the ball 320 is rollably arranged in the receiving groove 313, the friction between the spacer 300 and the second substrate 200 is rolling friction, and the speed at which the top of the spacer 300 is shortened by wear is greatly slowed down, thereby improving the display unevenness caused by the change in the thickness of the liquid crystal box, thereby improving the display effect of the display panel 10.

[0074] In some embodiments, the spacer column 310 may include a column portion 311 and a groove wall portion 312, the column portion 311 may be a cylinder, a truncated cone, a rectangular column or a quadrangular column, etc., the column portion 311 is disposed on the first substrate 100, the groove wall portion 312 is located on the side of the column portion 311 away from the first substrate 100, the groove wall portion 312 is disposed around the edge of the top surface of the column portion 311, and a receiving groove 313 is formed at the top of the column portion 311. For example, the column portion 311 is a truncated cone, the bottom diameter of the column portion 311 is 25±2 microns, the diameter of the ball 320 is 0.52±0.03 microns, and the depth of the receiving groove 313 is 0.29±0.03 microns.

[0075] The column body 311 and the groove wall 312 can be made of different materials with etching selectivity. When forming the spacer column 310 in step S200, a first spacer material layer can be formed on the first substrate 100, and then a portion of the first spacer material layer is removed to form the column body 311 through processes such as photoresist coating, exposure, development, and etching, and then a second spacer material layer is formed on the side of the column body 311 away from the first substrate 100, and then a portion of the second spacer material layer is removed to form the groove wall 312 through processes such as photoresist coating, exposure, development, and etching, so as to form the spacer column 310 with the accommodating groove 313 on the top.

[0076] The column portion 311 and the groove wall portion 312 are made of different materials with etching selectivity, which reduces the process of forming the spacer column 310 and reduces the manufacturing cost of the display panel 10 .

[0077] It should be noted that the column portion 311 and the groove wall portion 312 can be made of different materials with etching selectivity, but are not limited thereto. The column portion 311 and the groove wall portion 312 can also be made of the same material to improve the strength of the connection structure between the column portion 311 and the groove wall portion 312, which can be determined according to the specific situation. When the column portion 311 and the groove wall portion 312 are made of the same material, after the column portion 311 is formed, an etching stop layer can be formed on the bottom surface of the receiving groove 313, and then the groove wall portion 312 is formed, that is, the spacer column 310 with the receiving groove 313 on the top is formed.

[0078] In some embodiments, when forming the spacer column 310, a first spacer material layer is first formed on the first substrate 100, and then a portion of the first spacer material layer is removed through processes such as photoresist coating, exposure, development, and etching to form the outer contour of the spacer column 310, and then a receiving groove 313 is etched on the outer contour of the spacer column 310, that is, a spacer column 310 having a receiving groove 313 on the top is formed. Alternatively, after forming the first spacer material layer, the first spacer material layer is directly etched using a grayscale mask process, and the first spacer material layer in the area other than the spacer column 310 position is completely etched, and the first spacer material layer at the position of the receiving groove 313 is partially etched, so as to form a spacer column 310 having a receiving groove 313 on the top.

[0079] By directly etching the first spacer material layer using a grayscale mask process to form a spacer column 310 having a receiving groove 313 on the top, the manufacturing process of the display panel 10 can be simplified and the manufacturing cost of the display panel 10 can be reduced.

[0080] In some embodiments, the method for manufacturing a display panel further includes:

[0081] Before the second substrate 200 and the first substrate 100 are combined to form a liquid crystal cell, a third spacer material layer is formed on the side of the spacer column 310 away from the first substrate 100, and the third spacer material layer at least covers the spacer column 310 and the ball 320;

[0082] A portion of the third spacer material layer is removed to form a positioning retaining ring 330, the height of the positioning retaining ring 330 relative to the bottom surface of the receiving groove 313 is less than the diameter of the ball 320, and the depth of the receiving groove 313 is greater than the radius of the ball 320. For example, the thickness of the positioning retaining ring 330 is 0.16±0.03 microns, and the total height of the positioning retaining ring 330 and the spacer column 310 is 3±0.10 microns.

[0083] The ball 320 is clamped between the bottom surface of the receiving groove 313 and the positioning ring 330. The side of the ball 320 away from the first substrate 100 is partially exposed from the positioning ring 330, ensuring that the ball 320 can contact the second substrate 200. At the same time, the positioning ring 330 can block the ball 320 and prevent it from falling off from the receiving groove 313.

[0084] In some embodiments, the positioning retaining ring 330 and the spacer column 310 are made of different materials. After the third spacer material layer is formed, a portion of the third spacer material layer can be directly etched away to form the positioning retaining ring 330 .

[0085] It should be noted that the positioning retaining ring 330 and the spacer column 310 can be made of different materials, but are not limited thereto. The positioning retaining ring 330 and the spacer column 310 can be made of the same material, depending on the specific situation.

[0086] The positioning retaining ring 330 and the spacer column 310 are made of the same material, so that the spacer column 310 and the positioning retaining ring 330 can be connected as a whole, thereby improving the connection structure strength between the spacer column 310 and the positioning retaining ring 330 and preventing the positioning retaining ring 330 and the ball 320 from falling off as a whole.

[0087] In some embodiments, the positioning retaining ring 330 and the spacer column 310 are made of the same material, and the ball 320, the positioning retaining ring 330 and the spacer column 310 are made of different materials.

[0088] The material of the ball 320 is different from that of the positioning retaining ring 330, and the ball 320 can be used as an etching barrier layer for forming the positioning retaining ring 330, thereby reducing one process step when forming the positioning retaining ring 330, and reducing the manufacturing cost of the display panel 10. Since the material of the ball 320 is different from that of the positioning retaining ring 330, the ball 320 and the positioning retaining ring 330 are easier to separate, which can prevent the ball 320 and the positioning retaining ring 330 from sticking together and affecting the rotation of the ball 320, resulting in accelerated wear between the ball 320 and the second substrate 200 due to sliding friction, and further causing the thickness of the liquid crystal box to change and cause uneven display.

[0089] In addition, the ball 320 and the spacer column 310 are made of different materials. The material of the ball 320 can be selected to have a smaller friction coefficient with the positioning ring 330 and the spacer column 310, so as to reduce the sliding friction between the ball 320 and the second substrate 200, and at the same time reduce the wear caused by the friction between the ball 320 and the positioning ring 330 and the spacer column 310.

[0090] It should be noted that the ball 320 can be made of different materials from the positioning retaining ring 330 and the spacer column 310, but is not limited to this. The ball 320 can also be made of the same material as the positioning retaining ring 330 and the spacer column 310, depending on the specific situation.

[0091] The ball 320 , the positioning retaining ring 330 and the spacer column 310 are made of the same material, that is, the spacer 300 is made of a single material, which can reduce the types of raw materials and thus reduce the manufacturing cost.

[0092] In some embodiments, the method for manufacturing a display panel further includes:

[0093] Before installing the ball bearing 320 , a supporting boss 340 is formed at the bottom of the receiving groove 313 ;

[0094] When the second substrate 200 and the first substrate 100 are assembled to form a liquid crystal box, the area inside the sealant 400 is evacuated to make the ball 320 press the supporting boss 340 , thereby separating the ball 320 from the positioning retaining ring 330 .

[0095] When the display panel 10 is manufactured, the area inside the frame glue 400 can be evacuated first, and then the liquid crystal material can be poured into the area inside the frame glue 400 to form the liquid crystal layer 500. The area inside the frame glue 400 can be evacuated to exhaust the air in the liquid crystal box as much as possible. If the vacuum is drawn after pouring the liquid crystal material, the liquid crystal material has entered the box. At this time, the vacuum cannot effectively exhaust the air completely, and the residual air will form bubbles in the liquid crystal box, affecting the display effect, such as causing bright spots, dark spots or blurring on the display screen; while the vacuum drawn before pouring can create a near-vacuum environment, so that the liquid crystal material can smoothly fill the entire liquid crystal box during pouring, reducing the generation of bubbles. In addition, pouring the liquid crystal material after vacuuming is conducive to the uniform distribution of the liquid crystal material in the liquid crystal box. In a vacuum environment, the liquid crystal material is less affected by the air pressure and can flow more smoothly into various parts of the liquid crystal box, making the thickness of the liquid crystal layer 500 more uniform, thereby ensuring the consistency and stability of the display.

[0096] By utilizing a vacuum process before injecting the liquid crystal material, the ball 320 is pressed against the supporting boss 340, thereby separating the ball 320 from the positioning ring 330. This does not require an additional process and can avoid pressing the second substrate 200 to separate the ball 320 and the positioning ring 330, thereby avoiding structural damage to the second substrate 200.

[0097] In some embodiments, the column portion 311 and the groove wall portion 312 are made of the same material. After the column portion 311 is formed, an etching barrier layer may be formed to cover the column portion 311 as the area of ​​the bottom surface of the accommodating groove 313, and then a second spacer material layer is formed, and then the second spacer material layer is etched to form the groove wall portion 312 and the supporting boss 340, and finally the etching barrier layer is removed to form the spacer column 310 and the supporting boss 340. The supporting boss 340 may be a truncated cone, the bottom diameter of the supporting boss 340 is about 0.01 microns, and the height of the supporting boss 340 is about 0.02 microns.

[0098] The supporting boss 340 and the groove wall portion 312 are manufactured through one process, which can reduce the manufacturing cost of the display panel 10 .

[0099] It should be noted that the support boss 340 and the groove wall portion 312 can be manufactured using one process, but it is not limited thereto. The support boss 340 can also be manufactured using an etch barrier layer, which can be determined according to the specific situation. When the support boss 340 is manufactured using an etch barrier layer, after the groove wall portion 312 is formed, a portion of the etch barrier layer can be retained to form the support boss 340. Alternatively, a grayscale mask is used when forming the etch barrier layer, so that the thickness of the region where the etch barrier layer forms the support boss 340 is greater than the thickness of other regions. In the process of etching the second spacer material layer: the region where the etch barrier layer forms the support boss 340 is retained, thereby forming the support boss 340, and the other regions of the etch barrier layer are completely removed in the process of forming the groove wall portion 312.

[0100] Embodiment 3

[0101] See also Figure 8 As shown, the display device in this embodiment includes the display panel 10 and the backlight module 20 disclosed in the first embodiment, and the display panel 10 is arranged on the light emitting side of the backlight module 20 .

[0102] The display device includes a display panel 10, which includes a first substrate 100, a second substrate 200 and a spacer 300. The second substrate 200 is arranged on one side of the first substrate 100, and the spacer 300 is arranged between the first substrate 100 and the second substrate 200. The spacer 300 includes a spacer column 310 and a ball 320. The spacer column 310 is arranged on the first substrate 100, and the ball 320 is arranged on the top of the spacer column 310 away from the first substrate 100. The ball 320 can roll under the force applied by the second substrate 200. Since the ball 320 is rollably arranged in the receiving groove 313, the friction between the spacer 300 and the second substrate 200 is rolling friction, and the speed at which the top of the spacer 300 is shortened by wear is greatly slowed down, thereby improving the display unevenness caused by the thickness change of the liquid crystal box. The display panel 10 is used in the display device to improve the display effect of the display device.

[0103] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0104] In this application, unless otherwise clearly specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0105] In the description of this specification, the description with reference to the terms "some embodiments", "exemplarily", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0106] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A display panel, characterized in that: include: a first substrate; A second substrate is disposed on one side of the first substrate, wherein one of the first substrate and the second substrate is an array substrate and the other is an opposing substrate; A spacer is arranged between the first substrate and the second substrate, and the spacer includes a spacer column and a ball. The spacer column is arranged on the first substrate, and the ball is arranged on the top of the spacer column away from the first substrate. The ball can roll under the force applied by the second substrate.

2. The display panel according to claim 1, characterized in that: The top of the spacer column is provided with a receiving groove, the ball is rollably arranged in the receiving groove, and the depth of the receiving groove is smaller than the diameter of the ball.

3. The display panel according to claim 2, characterized in that: The depth of the accommodating groove is greater than the radius of the ball.

4. The display panel according to claim 3, characterized in that: The spacer also includes a positioning retaining ring, which is arranged at the end of the spacer column away from the first substrate, and the positioning retaining ring is connected to the spacer column. The inner hole diameter of the positioning retaining ring is smaller than the diameter of the ball, and the height of the positioning retaining ring relative to the bottom surface of the accommodating groove is smaller than the diameter of the ball.

5. The display panel according to claim 4, characterized in that: The inner hole wall of the positioning retaining ring is a spherical surface, and the radius of the spherical surface is greater than or equal to the radius of the ball. The diameter of the inner hole of the positioning retaining ring close to the hole of the spacer column is greater than the diameter of the inner hole of the positioning retaining ring away from the hole of the spacer column.

6. The display panel according to claim 4, characterized in that: The spacer column and the positioning retaining ring are made of the same material, and the spacer column and the positioning retaining ring are made of ultraviolet curing resin. The ball is made of the same or different material from the spacer column.

7. A method for manufacturing a display panel, characterized in that: include: providing a first substrate; Forming a spacer column on the first substrate, wherein a top of the spacer column away from the first substrate is provided with a receiving groove; A ball is installed in the receiving groove, the ball is rollably arranged in the receiving groove, and the depth of the receiving groove is smaller than the diameter of the ball; The second substrate is paired with the first substrate to form a liquid crystal box, the balls and the spacers are both located in the frame glue between the first substrate and the second substrate, one of the first substrate and the second substrate is an array substrate and the other is an opposing substrate.

8. The method for manufacturing a display panel according to claim 7, characterized in that: The method for manufacturing the display panel further includes: Before the second substrate and the first substrate are combined to form a liquid crystal cell, a third spacer material layer is formed on the side of the spacer column away from the first substrate, wherein the third spacer material layer at least covers the spacer column and the ball bearings; A portion of the third spacer material layer is removed to form a positioning retaining ring, wherein the height of the positioning retaining ring relative to the bottom surface of the accommodating groove is smaller than the diameter of the ball, and the depth of the accommodating groove is greater than the radius of the ball.

9. The method for manufacturing a display panel according to claim 8, characterized in that: The method for manufacturing the display panel further includes: Before installing the ball, a supporting boss is formed at the bottom of the receiving groove; When the second substrate and the first substrate are assembled to form a liquid crystal box, the area inside the sealant is evacuated to allow the rolling ball to crush the supporting boss, thereby separating the rolling ball from the positioning retaining ring.

10. A display device, characterized in that: include: Backlight module; The display panel according to any one of claims 1 to 6 is arranged on the light output side of the backlight module.

Images