Anti-static liquid crystal display module

Abstract

The utility model is suitable for liquid crystal display technical field provides a kind of anti-static liquid crystal display module;Including: frame, the display component of being set in the inside of frame, be provided with anti-static structure on the display component, the anti-static structure includes static partition coupling layer, dynamic charge dissipation layer and discharge passage.The utility model combines static partition coupling layer, dynamic charge dissipation layer and discharge passage three, solves the problem of single existing anti-static mode, and a variety of anti-static mode is combined to effectively solve static problem.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, specifically an anti-static liquid crystal display module. Background Technology

[0002] With the rapid development of network and wireless communication technologies, information technology has become increasingly prevalent in individuals. Consequently, portable information products, such as laptops, mobile phones, digital cameras, and personal data assistants, have experienced rapid growth and development. Liquid crystal displays (LCDs), due to their numerous advantages such as thinness, energy efficiency, and lack of radiation, have gained widespread application, driving the development of network and wireless communication technologies. Currently, mobile phones, digital cameras, and laptops are all moving towards ultra-thin designs, and the touch screen and LCD module industries are also accelerating their thinning development processes.

[0003] LCD display modules commonly suffer from static electricity problems. Existing technologies typically employ a single anti-static measure, which fails to effectively address the issue. To resolve this technical problem, an anti-static LCD display module is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an anti-static liquid crystal display module to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An anti-static liquid crystal display module includes: a frame, a display component disposed inside the frame, the display component having an anti-static structure, the anti-static structure including an electrostatic zoning coupling layer, a dynamic charge dissipation layer and a discharge channel.

[0007] As a further embodiment of this utility model: the display component includes an upper polarizer, a color filter substrate, a liquid crystal layer, an array substrate, a lower polarizer, and a backlight module stacked sequentially.

[0008] As a further embodiment of this utility model: the electrostatic partition coupling layer includes a first transparent conductive layer disposed at the bottom of the color filter substrate and a second transparent conductive layer disposed at the bottom of the array substrate. A first edge coupling frame is disposed on the first transparent conductive layer and a second edge coupling frame is disposed on the second transparent conductive layer.

[0009] As a further embodiment of this invention: the dynamic charge dissipation layer includes a transparent photoconductive film disposed on the surface of the upper polarizer and an AC excitation circuit electrically connected to the transparent photoconductive film.

[0010] As a further improvement of this invention: the discharge channel includes two discharge electrodes, both connected to a grounding ring. One discharge electrode is connected to a first transparent conductive layer, and the other is connected to a second transparent conductive layer. The grounding ring is externally grounded. The discharge electrodes and the nonlinear resistive film are located on the upper surface of the color filter substrate and the lower surface of the array substrate, respectively, forming two-level nodes in space. When electrostatic high voltage occurs, the nodes first withstand different potential differences, thereby splitting the originally one-time breakdown high voltage into multiple lower voltages, reducing the single-level field strength, and avoiding instantaneous breakdown of the liquid crystal layer. The two-level electrodes work independently and serve as backups for each other. Even if the nonlinear resistive film of one level fails due to aging or mechanical damage, the other level can still continue to discharge, significantly extending the module's service life and improving reliability.

[0011] As a further improvement of this invention, the two discharge electrodes are each connected to a grounding ring via a nonlinear resistive film.

[0012] As a further improvement of this utility model: the width of the first edge coupling frame and the second edge coupling frame is d, 0.2mm≤d≤1.0mm.

[0013] As a further improvement of this invention: the transparent photoconductive film is a blend of indium tin oxide (ITO) and polyaniline nanofibers.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by combining the electrostatic zoning coupling layer, the dynamic charge dissipation layer and the discharge channel, the problem of the single anti-static method in the existing system is solved, and the combination of multiple anti-static methods effectively solves the static electricity problem. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an anti-static liquid crystal display module according to an embodiment of the present invention.

[0016] In the figure: 10-frame, 21-upper polarizer, 22-color filter substrate, 23-liquid crystal layer, 24-array substrate, 25-lower polarizer, 26-backlight module, 31-first transparent conductive layer, 32-second transparent conductive layer, 33-first edge coupling frame, 34-second edge coupling frame, 41-transparent photoconductive film, 42-AC excitation circuit, 51-discharge electrode, 52-nonlinear resistive film, 53-grounding ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example

[0019] Please refer to the figure. This utility model embodiment provides a structural diagram of an anti-static liquid crystal display module. The anti-static liquid crystal display module includes: a frame 10, a display component disposed inside the frame 10, and an anti-static structure disposed on the display component. The anti-static structure includes an electrostatic partition coupling layer, a dynamic charge dissipation layer, and a discharge channel.

[0020] This invention combines an electrostatic zoning coupling layer, a dynamic charge dissipation layer, and a discharge channel, solving the problem of the single nature of existing antistatic methods. The combination of multiple antistatic methods effectively solves the static electricity problem.

[0021] Specifically, the display assembly includes an upper polarizer 21, a color filter substrate 22, a liquid crystal layer 23, an array substrate 24, a lower polarizer 25, and a backlight module 26 stacked in sequence.

[0022] In a preferred embodiment of the present invention, the electrostatic partitioning coupling layer includes a first transparent conductive layer 31 disposed at the bottom of the color filter substrate 22 and a second transparent conductive layer 32 disposed at the bottom of the array substrate 24. A first edge coupling frame 33 is disposed on the first transparent conductive layer 31, and a second edge coupling frame 34 is disposed on the second transparent conductive layer 32. The first transparent conductive layer 31 and the second transparent conductive layer 32 form capacitive coupling through the first edge coupling frame 33 and the second edge coupling frame 34 to partition and store electrostatic energy.

[0023] In a preferred embodiment of this invention, the dynamic charge dissipation layer includes a transparent photoconductive film 41 disposed on the surface of the upper polarizer 21 and an AC excitation circuit 42 electrically connected to the transparent photoconductive film 41. The AC excitation circuit 42 applies an AC signal to the transparent photoconductive film 41 when static electricity accumulation is detected, causing the surface charge to migrate laterally and be absorbed by the static electricity partitioning coupling layer. The frequency of the AC signal is 0.1Hz–10kHz (frame), and the amplitude is 1V–10V. The dynamic charge dissipation layer utilizes low-power AC excitation to actively migrate surface charge, solving the problem of uneven display caused by long-term surface charge retention in the prior art.

[0024] In a preferred embodiment of this invention, the discharge channel includes two discharge electrodes 51, both connected to a grounding ring 53. One discharge electrode 51 is connected to the first transparent conductive layer 31, and the other discharge electrode 51 is connected to the second transparent conductive layer 32. The grounding ring 53 is externally grounded. The discharge channel is used to remove charge from the electrostatic coupling layer through the discharge electrodes 51 and the grounding ring 53. The discharge electrodes 51 and the nonlinear resistive film 52 are located on the upper surface of the color filter substrate 22 and the lower surface of the array substrate 24, respectively, forming two-level nodes in space. When electrostatic high voltage occurs, the nodes first withstand different potential differences, thereby splitting the originally one-time breakdown high voltage into multiple lower voltages, reducing the single-level field strength, and avoiding instantaneous breakdown of the liquid crystal layer. The two-level electrodes work independently and serve as backups for each other. Even if the nonlinear resistive film of one level fails due to aging or mechanical damage, the other level can still continue to complete the discharge, significantly extending the module's service life and improving reliability.

[0025] In a preferred embodiment of this invention, the two discharge electrodes 51 are each connected to a grounding ring 53 via a nonlinear resistive film 52. The resistance of the nonlinear resistive film 52 decreases exponentially with the applied electric field strength. By using the nonlinear resistive film to achieve "slow release" rather than "hard discharge" of electrostatic energy, the risk of EMI and device damage is significantly reduced.

[0026] In a preferred embodiment of this utility model, the width of the first edge coupling frame 33 and the second edge coupling frame 34 is d, where 0.2mm≤d≤1.0mm. The inner edges of the first edge coupling frame 33 and the second edge coupling frame 34 are provided with continuous serrated microstructures to form multi-point weak discharge channels in the initial stage of electrostatic discharge to reduce the energy of a single discharge.

[0027] In a preferred embodiment of this invention, the nonlinear resistive film 52 is composed of zinc oxide nanoparticles and polymethyl methacrylate, with a nonlinear coefficient α ≥ 15. The thickness is t, where 50 nm ≤ t ≤ 200 nm.

[0028] In a preferred embodiment of this invention, the transparent photoconductive film 41 is a blend of indium tin oxide (ITO) and polyaniline nanofibers. The AC excitation circuit 42 can be integrated onto a flexible circuit board (FPC) and share a power supply with the module driver IC.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An anti-static liquid crystal display module, characterized in that, include: A frame (10) and a display component disposed inside the frame (10). The display component is provided with an anti-static structure, which includes an electrostatic partition coupling layer, a dynamic charge dissipation layer and a discharge channel. The electrostatic partition coupling layer includes a first transparent conductive layer (31) disposed at the bottom of the color filter substrate (22) and a second transparent conductive layer (32) disposed at the bottom of the array substrate (24). A first edge coupling frame (33) is disposed on the first transparent conductive layer (31), and a second edge coupling frame (34) is disposed on the second transparent conductive layer (32). The dynamic charge dissipation layer includes a transparent photoconductive film (41) disposed on the surface of the upper polarizer (21) and an AC excitation circuit (42) electrically connected to the transparent photoconductive film (41). The discharge channel includes two discharge electrodes (51), both of which are connected to the grounding ring (53). One discharge electrode (51) is connected to the first transparent conductive layer (31), and the other discharge electrode (51) is connected to the second transparent conductive layer (32).

2. The anti-static liquid crystal display module according to claim 1, characterized in that, The display assembly includes an upper polarizer (21), a color filter substrate (22), a liquid crystal layer (23), an array substrate (24), a lower polarizer (25), and a backlight module (26) stacked in sequence.

3. The anti-static liquid crystal display module according to claim 1, characterized in that, The two discharge electrodes (51) are connected to the grounding ring (53) through a nonlinear resistive film (52).

4. The anti-static liquid crystal display module according to claim 1, characterized in that, The width of the first edge coupling frame (33) and the second edge coupling frame (34) is d, 0.2mm≤d≤1.0mm.

5. The anti-static liquid crystal display module according to claim 1, characterized in that, The transparent photoconductive film (41) is a blend of indium tin oxide (ITO) and polyaniline nanofibers.

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