Liquid crystal display panel and display device

Abstract

The embodiment of the utility model provides a liquid crystal display panel and a display device. The liquid crystal display panel comprises a display area and a frame area located on the periphery of the display area. The liquid crystal display panel comprises an array substrate which is provided with a first surface and a second surface which are oppositely arranged; a thin film transistor layer disposed on the first surface; the alignment film is arranged on the face, away from the array substrate, of the thin film transistor, and the planarization layer is arranged on the face, away from the array substrate, of the alignment film and correspondingly arranged in the display area; the liquid crystal layer is arranged on one surface, far away from the array substrate, of the planarization layer and is correspondingly arranged in the display area; and the frame glue layer is arranged on one side, far away from the array substrate, of the thin film transistor and is correspondingly arranged in the frame area, and silicon balls are arranged in the frame glue layer. Wherein a step difference is formed between the liquid crystal layer and the frame glue layer, and the thickness of the liquid crystal layer is smaller than the diameter of the silicon ball. The liquid crystal response speed is effectively improved.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a liquid crystal display panel and display device. Background Technology

[0002] As competition in the display product market intensifies, the required display frequency is constantly increasing. With this increase in frequency, the demands on LCD response speed become increasingly stringent. The conventional approach is for LCD manufacturers to adjust LCD parameters or reduce the cell thickness to achieve a faster response. However, due to limitations in the manufacturing capabilities of the silicon balls within the frame, it is currently very difficult to further reduce the cell thickness.

[0003] Therefore, providing a liquid crystal display panel that can improve the liquid crystal response speed has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] This invention provides a liquid crystal display panel and display device, which is beneficial to improving the response speed of liquid crystal.

[0005] In a first aspect, the present invention provides a liquid crystal display panel, including a display area and a bezel area located around the display area, the liquid crystal display panel comprising:

[0006] An array substrate has a first surface and a second surface that are disposed opposite to each other.

[0007] A thin-film transistor layer is disposed on the first surface;

[0008] An alignment film is disposed on the side of the thin-film transistor away from the array substrate;

[0009] A planarization layer is disposed on the side of the alignment film away from the array substrate, and is correspondingly disposed in the display area;

[0010] A liquid crystal layer is disposed on the side of the alignment film away from the array substrate, and is correspondingly disposed in the display area;

[0011] A frame adhesive layer is disposed on the side of the thin-film transistor away from the array substrate and correspondingly disposed in the frame area, and silicon balls are disposed within the frame adhesive layer;

[0012] The liquid crystal layer and the sealant layer form a stepped difference, and the thickness of the liquid crystal layer is smaller than the diameter of the silicon sphere.

[0013] In some embodiments, the thickness of the sealant layer is equal to the sum of the thicknesses of the liquid crystal layer and the planarization layer.

[0014] In some embodiments, the thickness of the planarization layer is 1-3 μm.

[0015] In some embodiments, a transparent conductive thin film layer is further included, disposed on the side of the liquid crystal layer and the sealant layer away from the array substrate.

[0016] In some embodiments, the sealant layer is flush with the side of the liquid crystal layer away from the array substrate.

[0017] In some embodiments, a color filter is further included, the color filter being disposed on the side of the transparent conductive film away from the array substrate.

[0018] In some embodiments, a color filter substrate is further included, the color filter substrate being disposed on the side of the color filter away from the array substrate.

[0019] In some embodiments, gap pillars are provided between the liquid crystal layers.

[0020] In some embodiments, the thickness of the liquid crystal layer is less than 3 μm.

[0021] Secondly, this utility model provides a display device, including the liquid crystal display panel described above.

[0022] This utility model provides a liquid crystal display panel, including a display area and a bezel area surrounding the display area. The liquid crystal display panel includes an array substrate having a first surface and a second surface disposed opposite to each other; a thin-film transistor layer disposed on the first surface; an alignment film disposed on the surface of the thin-film transistors away from the array substrate; a planarization layer disposed on the surface of the alignment film away from the array substrate and correspondingly disposed in the display area; a liquid crystal layer disposed on the surface of the planarization layer away from the array substrate and correspondingly disposed in the display area; and a sealant layer disposed on the surface of the thin-film transistors away from the array substrate and correspondingly disposed in the bezel area, with silicon spheres disposed within the sealant layer. A stepped difference is formed between the liquid crystal layer and the sealant layer, and the thickness of the liquid crystal layer is smaller than the diameter of the silicon spheres. This design further reduces the thickness of the liquid crystal layer and is not limited to the diameter of the silicon spheres within the sealant layer, effectively improving the liquid crystal response speed. Compared with the prior art, the technical solution of this application significantly improves the display effect and user experience without increasing production costs, possessing high practical value and market competitiveness. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the first structure of the liquid crystal display panel provided by this utility model;

[0024] Figure 2 This is a schematic diagram of a display device provided by this utility model. Detailed Implementation

[0025] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] Furthermore, the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0027] Please see Figure 1 , Figure 1 This is a schematic diagram of the first structure of the liquid crystal display panel provided by this utility model. This application proposes a liquid crystal display panel 100, including a display area 100a and a border area 100b located around the display area 100a. The liquid crystal display panel 100 includes an array substrate 10, having a first surface 10a and a second surface 10b disposed opposite to each other; a thin-film transistor layer 20 disposed on the first surface 10a; an alignment film 101 disposed on the side of the thin-film transistor away from the array substrate 10; a planarization layer 30 disposed on the side of the alignment film 101 away from the array substrate 10, and correspondingly disposed in the display area 100a; a liquid crystal layer 40 disposed on the side of the planarization layer 30 away from the array substrate 10, and correspondingly disposed in the display area 100a; and a sealant layer 50 disposed on the side of the thin-film transistor away from the array substrate 10, and correspondingly disposed in the border area 100b. Silicon spheres 60 are disposed within the sealant layer 50. A step difference is formed between the liquid crystal layer 40 and the sealant layer 50, and the thickness of the liquid crystal layer 40 is smaller than the diameter of the silicon spheres 60.

[0028] It should be noted that the first surface 10a is the upper surface of the array substrate 10, and the second surface 10b is the lower surface of the array substrate 10. Of course, the positions of the first surface 10a and the second surface 10b can be interchanged as needed. Unless otherwise specified in the embodiments of this application, the first surface 10a is the upper surface of the array substrate 10 by default.

[0029] Specifically, the array substrate 10 serves as the basic structure of the liquid crystal display panel 100, providing support and fixation. The thin-film transistor layer 20 controls the alignment of liquid crystal molecules to achieve image display. The planarization layer 30 smooths the surface of the thin-film transistor layer 20, ensuring the uniform distribution of the liquid crystal layer 40. The liquid crystal layer 40, as the core of the display, controls the alignment of liquid crystal molecules through an electric field to change the light transmittance, thereby achieving image display. The sealant layer 50 seals the liquid crystal layer 40 to prevent liquid crystal leakage, while maintaining the thickness of the liquid crystal layer 40 through the silicon spheres 60. The step difference between the liquid crystal layer 40 and the sealant layer 50, and the design that the thickness of the liquid crystal layer 40 is smaller than the diameter of the silicon spheres 60, contribute to improving the liquid crystal response speed.

[0030] In a preferred embodiment, the array substrate 10 can be made of a high-transmittance material, such as quartz glass, to improve the display effect. The thin-film transistor layer 20 can be made of low-temperature polycrystalline silicon to improve the transistor mobility and stability. The planarization layer 30 can be made of organic materials, such as polyimide, to achieve a good flatness. The liquid crystal layer 40 can be made of negative liquid crystal material to improve the response speed. The sealant layer 50 can be made of UV-curable adhesive to improve the sealing effect and production efficiency. The diameter of the silicon spheres 60 can be precisely controlled according to the thickness requirements of the liquid crystal layer 40 to ensure the uniformity and stability of the liquid crystal layer 40.

[0031] Therefore, the liquid crystal display panel 100 of this application optimizes the structure and materials of each layer, particularly the step difference between the liquid crystal layer 40 and the frame adhesive layer 50, and the design that the thickness of the liquid crystal layer 40 is smaller than the diameter of the silicon sphere 60. This design further reduces the thickness of the liquid crystal layer 40 and is not limited to the diameter of the silicon sphere 60 within the frame adhesive layer 50, effectively improving the liquid crystal response speed. Compared with the prior art, the technical solution of this application significantly improves the display effect and user experience without increasing production costs, and has high practical value and market competitiveness.

[0032] Furthermore, this application proposes that the thickness of the sealant layer 50 is equal to the sum of the thicknesses of the liquid crystal layer 40 and the planarization layer 30. Specifically, the thickness of the sealant layer 50 is precisely controlled to maintain consistency with the sum of the thicknesses of the liquid crystal layer 40 and the planarization layer 30. This technique can be achieved by adjusting the coating process parameters of the sealant layer 50, such as controlling parameters like the coating speed, coating pressure, and viscosity of the coating material to ensure that the thickness of the sealant layer 50 meets the design requirements. In addition, the thickness of the sealant layer 50 can be monitored in real time using online measuring equipment, and dynamic adjustments can be made based on the measurement results to ensure precise thickness control.

[0033] Therefore, this technical solution ensures the structural stability and display effect of the liquid crystal display panel 100 by precisely controlling the thickness of the adhesive layer 50 to be equal to the sum of the thicknesses of the liquid crystal layer 40 and the planarization layer 30. Specifically, by making the thickness of the adhesive layer 50 equal to the sum of the thicknesses of the liquid crystal layer 40 and the planarization layer 30, the thickness of the liquid crystal layer 40 is reduced by the equivalent of the thickness of one planarization layer 30, thereby effectively improving the liquid crystal response speed.

[0034] The working principle of this technical solution is to precisely control the thickness of the sealant layer 50 so that it is equal to the sum of the thicknesses of the liquid crystal layer 40 and the planarization layer 30, thereby effectively improving the liquid crystal response speed.

[0035] Furthermore, this application proposes that the thickness of the planarization layer 30 is 1-3 μm. The function of the planarization layer 30 is to provide a flat surface for the liquid crystal layer 40, ensuring the uniform distribution and stable display effect of the liquid crystal layer 40. By controlling the thickness of the planarization layer 30 within the range of 1-3 μm, the thickness of the liquid crystal layer 40 is reduced by 1-3 μm, thereby effectively improving the liquid crystal response speed and ensuring the stability and display quality of the display panel.

[0036] Furthermore, this application proposes to provide a transparent conductive film 70 layer on the side of the liquid crystal layer 40 and the sealant layer 50 away from the array substrate 10. The transparent conductive film 70 layer can be formed by processes such as sputtering, evaporation, or chemical vapor deposition, and the material can be indium tin oxide (ITO), zinc oxide (ZnO), or other transparent conductive materials. The thickness of the transparent conductive film 70 layer can be adjusted according to actual needs, typically between tens of nanometers and hundreds of nanometers. The provision of the transparent conductive film 70 layer can further improve the conductivity of the liquid crystal display panel 100 without affecting the display effect.

[0037] Specifically, the introduction of the transparent conductive film 70 layer can effectively improve the electric field distribution of the liquid crystal layer 40, thereby enhancing the response speed of the liquid crystal molecules. Since the transparent conductive film 70 layer is located between the liquid crystal layer 40 and the sealant layer 50, a uniform electric field can be formed at its contact surface with the liquid crystal layer 40, reducing the delay time of the liquid crystal molecules under the influence of the electric field. Furthermore, the transparent conductive film 70 layer can also enhance the overall structural stability of the liquid crystal display panel 100, preventing defects or damage at the interface between the liquid crystal layer 40 and the sealant layer 50.

[0038] Therefore, the technical solution of this application solves the problem of limited liquid crystal response speed in the prior art by introducing 70 layers of transparent conductive film. Compared with the prior art, this solution effectively improves the performance of the liquid crystal display panel 100 without significantly increasing manufacturing costs, and has high practical value.

[0039] Furthermore, this application proposes that the sealant layer 50 and the side of the liquid crystal layer 40 away from the array substrate 10 are flush. Specifically, the sealant layer 50 is disposed on the side of the thin-film transistor away from the array substrate 10 and is correspondingly disposed in the border region 100b, and a silicon ball 60 is disposed within the sealant layer 50. The liquid crystal layer 40 is disposed on the side of the planarization layer 30 away from the array substrate 10 and is correspondingly disposed in the display region 100a. The sealant layer 50 and the side of the liquid crystal layer 40 away from the array substrate 10 are flush, thereby forming a step difference between the liquid crystal layer 40 and the sealant layer 50, and the thickness of the liquid crystal layer 40 is smaller than the diameter of the silicon ball 60.

[0040] In this regard, the adhesive layer 50 and the side of the liquid crystal layer 40 away from the array substrate 10 are flush. This technical solution optimizes the structure of the adhesive layer 50 and the liquid crystal layer 40, making the thickness of the liquid crystal layer 40 more uniform, thereby improving the liquid crystal response speed and solving the problem of slow liquid crystal response speed caused by uneven liquid crystal cell thickness in the prior art.

[0041] Furthermore, this application proposes to provide a color filter 80 on the side of the transparent conductive film 70 away from the array substrate 10. The color filter 80 is used to realize the color display function of the liquid crystal display panel 100. By providing the color filter 80 on the transparent conductive film 70, the display effect can be further optimized. The color filter 80 is typically composed of filter units of three colors: red, green, and blue. These filter units are arranged in a certain manner to achieve full-color display. The placement and method of the color filter 80 can be adjusted according to specific needs. For example, the color filter 80 can be directly fabricated on the transparent conductive film 70 using a photolithography process, or a pre-fabricated color filter 80 can be bonded to the transparent conductive film 70 using a bonding process.

[0042] Specifically, the color filter 80 effectively enhances the color performance of the liquid crystal display panel 100. Since the color filter 80 is directly disposed on the transparent conductive film 70, light scattering and loss are reduced, thereby improving display brightness and color saturation. Furthermore, the combination of the color filter 80 and the transparent conductive film 70 simplifies the panel structure and reduces production costs. Through this arrangement, the liquid crystal display panel 100 achieves high color fidelity while maintaining good light transmittance and stability.

[0043] Therefore, the technical solution of this application solves the technical problem of color display in the liquid crystal display panel 100 by introducing a color filter 80. Compared with the prior art, this solution not only improves the display effect but also simplifies the panel structure, and has high practicality and economy.

[0044] Furthermore, this application proposes to provide a color filter substrate 90 on the side of the color filter 80 away from the array substrate 10. The color filter substrate 90 can protect the color filter 80 while providing additional structural support to ensure the stability and durability of the display panel. Specifically, the color filter substrate 90 can be made of a transparent material, such as glass or transparent plastic, to ensure that it does not affect the display effect. As a preferred embodiment, the thickness of the color filter substrate 90 can be adjusted according to the overall structure of the display panel to optimize the display effect and mechanical strength.

[0045] Therefore, the placement of the color filter substrate 90 not only enhances the protection of the color filter 80 but also further improves the overall structural stability of the display panel. This effectively reduces the impact of the external environment on the display panel, such as preventing dust or moisture from entering, thereby extending the lifespan of the display panel. Furthermore, the transparency of the color filter substrate 90 ensures that the display effect is unaffected, while its structural design can also adapt to the needs of high-frequency displays, improving the liquid crystal response speed.

[0046] To address this issue, the technical solution of this application introduces a color filter substrate 90, which solves the problem of the color filter 80 being susceptible to external environmental influences in the prior art, while also improving the structural stability and durability of the display panel. Compared with the prior art, this solution not only simplifies the manufacturing process but also improves the overall performance of the display panel, especially in high-frequency display scenarios.

[0047] Furthermore, this application proposes that gap pillars 41 are provided between the liquid crystal layers 40. The function of the gap pillars 41 is to maintain a uniform gap between the liquid crystal layers 40, ensuring the stability of the liquid crystal molecule arrangement and response speed. The gap pillars 41 can be prepared by photolithography or nanoimprint technology, and the material can be selected from photosensitive resin or inorganic materials. The specific height and diameter are designed according to the thickness of the liquid crystal layer 40 and the display requirements. The distribution of the gap pillars 41 can be a uniform array or a non-uniform distribution according to the different area requirements of the display area 100a.

[0048] Specifically, the spacer pillars 41 effectively prevent the liquid crystal layer 40 from deforming under external pressure or temperature changes, thereby avoiding distortion of the display effect. Furthermore, the presence of the spacer pillars 41 also improves the mechanical stability of the liquid crystal layer 40, reduces the disordered arrangement of liquid crystal molecules caused by external forces, and further enhances the reliability and lifespan of the display panel.

[0049] Therefore, the technical solution of this application solves the problem of unstable response speed caused by uneven gaps in the liquid crystal layer 40 during the display process by introducing the gap pillar 41. Compared with the prior art, this solution can not only improve the display quality of the liquid crystal display panel 100, but also enhance its structural stability, providing reliable technical support for high-frequency display requirements.

[0050] Furthermore, this application proposes that the thickness of the liquid crystal layer 40 is less than 3 μm. Specifically, the thickness of the liquid crystal layer 40 can be achieved by adjusting the thickness of the planarization layer 30, which is typically 1-3 μm thick. As a preferred embodiment, the thickness of the liquid crystal layer 40 can be further optimized to below 2.5 μm to ensure improved liquid crystal response speed. In addition, the thickness of the liquid crystal layer 40 can also be achieved by adjusting the material composition of the liquid crystal layer 40, for example, by using a liquid crystal material with higher fluidity, thereby further reducing the thickness while ensuring display performance.

[0051] To address this, the technical solution of having a liquid crystal layer 40 thickness of less than 3µm effectively improves the response speed of the liquid crystal by reducing its thickness. Because the thickness of the liquid crystal layer 40 is reduced, the movement path of the liquid crystal molecules under the influence of the electric field is shortened, thereby accelerating the rearrangement speed of the liquid crystal molecules and thus improving the response speed of the display panel. Compared with existing technologies, this solution achieves an improvement in liquid crystal response speed without significantly altering existing manufacturing processes by optimizing the thickness of the liquid crystal layer 40, solving the problem of limited response speed caused by the difficulty in further reducing the thickness of the liquid crystal cell in existing technologies.

[0052] Please see Figure 2 , Figure 2 This is a schematic diagram of a display device provided by the present invention. The present invention provides a display device 1000, including a backlight substrate 200 and the aforementioned liquid crystal display panel 100.

[0053] The backlight substrate 200 is disposed on the back of the display panel and is used to provide the light source required for the display. The backlight substrate typically includes components such as a light source, a light guide plate, a reflective sheet, a diffuser sheet, and a brightness enhancement film, which can produce uniform and bright backlight to ensure that the display device has a good display effect.

[0054] The display device 1000 can be a television set, computer monitor, mobile phone, tablet computer, or other electronic device with display functions. By employing the display panel of the present invention, the display device can have higher display quality, faster response speed, and longer service life.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A liquid crystal display panel, comprising a display area and a bezel area surrounding the display area, characterized in that, The liquid crystal display panel includes: An array substrate has a first surface and a second surface that are disposed opposite to each other. A thin-film transistor layer is disposed on the first surface; An alignment film is disposed on the side of the thin-film transistor away from the array substrate; A planarization layer is disposed on the side of the alignment film away from the array substrate, and is correspondingly disposed in the display area; A liquid crystal layer is disposed on the side of the alignment film away from the array substrate, and is correspondingly disposed in the display area; A frame adhesive layer is disposed on the side of the thin-film transistor away from the array substrate and correspondingly disposed in the frame area, and silicon balls are disposed within the frame adhesive layer; The liquid crystal layer and the sealant layer form a stepped difference, and the thickness of the liquid crystal layer is smaller than the diameter of the silicon sphere.

2. The liquid crystal display panel according to claim 1, characterized in that, The thickness of the sealant layer is equal to the sum of the thicknesses of the liquid crystal layer and the planarization layer.

3. The liquid crystal display panel according to claim 2, characterized in that, The thickness of the planarization layer is 1-3 μm.

4. The liquid crystal display panel according to claim 2, characterized in that, It also includes a transparent conductive thin film layer disposed on the side of the liquid crystal layer and the sealant layer away from the array substrate.

5. The liquid crystal display panel according to claim 4, characterized in that, The sealant layer is flush with the side of the liquid crystal layer away from the array substrate.

6. The liquid crystal display panel according to claim 4, characterized in that, It also includes a color filter, which is disposed on the side of the transparent conductive film away from the array substrate.

7. The liquid crystal display panel according to claim 6, characterized in that, It also includes a color filter substrate, which is disposed on the side of the color filter away from the array substrate.

8. The liquid crystal display panel according to claim 1, characterized in that, Spacer columns are provided between the liquid crystal layers.

9. The liquid crystal display panel according to claim 1, characterized in that, The thickness of the liquid crystal layer is less than 3 μm.

10. A display device, characterized in that, Including the liquid crystal display panel as described in any one of claims 1 to 9.

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