Display module capable of withstanding ultrahigh charge discharge

Abstract

The utility model provides a display module capable of withstanding ultrahigh charge discharge. The display module is characterized in that a bottom polaroid POL is arranged on one side of bottom ITO glass; the surface ITO glass is arranged on one side of the bottom ITO glass, the surface polaroid POL is arranged on the other side of the bottom ITO glass, and an EC coating is arranged between the surface ITO glass and the surface polaroid POL; a point silver paste PAD area is arranged on the bottom ITO glass; the flexible printed circuit board FPC comprises a grounding end and is electrically connected with one side of the bottom ITO glass. According to the utility model, the high voltage resistant level of the display module is improved, and the influence and damage of malignant static electricity on internal elements and functions of the display module are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of display panel devices, and specifically relates to a display module capable of withstanding ultra-high charge discharge. Background Technique

[0002] Static electricity is an objective natural phenomenon that causes serious harm to products in the semiconductor, industrial, military and other fields. Conventional display modules have a low anti-static level. The display mode is that passive components do not promise an anti-static level, or can only withstand charges of plus or minus 8 KV, which cannot meet the requirements of electronic industrial products. High static electricity will enter the display module and affect or damage its function, resulting in greater economic losses and safety risks.

[0003] To achieve the above object, the utility model provides a display module capable of withstanding ultra-high charge discharge, which can solve the problems raised in the above background technique. Content of the Utility Model

[0004] The utility model adopts the following technical solutions to achieve:

[0005] A display module capable of withstanding ultra-high charge discharge, the display module includes:

[0006] A bottom ITO glass, with a bottom polarizer POL provided on one side thereof;

[0007] A surface ITO glass, arranged on one side of the bottom ITO glass, with a surface polarizer POL on the other side thereof. An EC coating is provided between the surface ITO glass and the surface polarizer POL; a silver paste PAD area is provided on the bottom ITO glass;

[0008] A flexible printed circuit board FPC, including a grounding end and electrically connected to one side of the bottom ITO glass.

[0009] Preferably, one edge margin of the bottom ITO glass exceeds the edge margin of the surface ITO glass and a dedicated driving IC is provided, and the dedicated driving IC is electrically connected to the flexible printed circuit board FPC.

[0010] Preferably, the silver paste PAD area is electrically connected to the side edges of the surface polarizer POL, the EC coating, and the surface ITO glass.

[0011] Preferably, the display module further includes an ESD surrounding circuit, and an FPC wiring circuit is provided inside the flexible printed circuit board FPC. The ESD surrounding circuit is connected to the FPC wiring circuit through the dedicated driving IC.

[0012] Preferably, the ESD surrounding circuit is connected to the silver paste PAD area. The ESD surrounding circuit is located above the bottom ITO glass and distributed around its edge. There are multiple contact segments between the silver paste PAD area and the loop of the ESD surrounding circuit.

[0013] Preferably, the EC coating is a conductive layer, and its side is electrically connected to the silver paste PAD area through coating silver paste.

[0014] Preferably, an electromagnetic shielding film EMI is provided outside the flexible printed circuit board FPC.

[0015] Preferably, the distance between the surface polarizer POL and the bottom ITO glass is greater than 0.8 mm.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] By protecting the whole machine against the traditional materials and manufacturing processes of black and white display screens, the present utility model is simply and effectively integrated into the display module, greatly improving the antistatic level and reaching the tolerance level of ultra-high charge. Using the coating process of EC-COATING and the electromagnetic shielding film EMI to guide the current can effectively improve the upper limit of the electricity resistance of the display module, so that the display module can be protected from the electrical damage of antistatic levels of plus and minus 15 KV. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front schematic view of the overall structure of the display module of the present utility model;

[0019] Figure 2 is a side view of the structure of the display module of the present utility model;

[0020] Figure 3 is a schematic diagram of the routing directions of the ESD surrounding circuit and the FPC routing circuit of the present utility model.

[0021] In the figure: 1, surface polarizer POL; 2, surface ITO glass; 3, bottom ITO glass; 4, bottom polarizer POL; 5, dedicated drive IC; 6, flexible printed circuit board FPC; 7, silver paste PAD area; 8, EC coating; 10, electromagnetic shielding film EMI; 12, ESD surrounding circuit; 13, FPC routing circuit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] The present utility model will be further described in detail below with reference to the drawings.

[0026] Please refer to the polarizer POL(1)-3 in the drawing. The display module includes: a bottom ITO glass (3) with a bottom polarizer POL(4) provided on one side thereof; a top ITO glass (2) disposed on one side of the bottom ITO glass (3), and a top polarizer POL(1) on the other side thereof. An EC coating (8) is provided between the top ITO glass (2) and the top polarizer POL(1); a silver paste PAD area (7) is provided on the bottom ITO glass (3); a flexible printed circuit board FPC(6) including a grounding end and electrically connected to one side of the bottom ITO glass (3), and the distance between the top polarizer POL(1) and the bottom ITO glass (3) is greater than 0. EC coating (8) mm.

[0027] Please refer to the polarizer POL(1)-3 in the drawing. One end margin of the bottom ITO glass (3) extends beyond the margin of the top ITO glass (2) and a dedicated driving IC(5) is provided, and an electrical signal connection is provided between the dedicated driving IC(5) and the flexible printed circuit board FPC(6).

[0028] Please refer to the top ITO glass (2) and the bottom ITO glass (3) in the drawing. The silver paste PAD area (7) is electrically connected to the sides of the top polarizer POL(1), the EC coating (8), and the top ITO glass (2).

[0029] Please refer to the ITO glass (2) in the drawing. The display module further includes an ESD surrounding circuit (12). Inside the flexible printed circuit board FPC (6), there is an FPC trace circuit (13). The ESD surrounding circuit (12) is connected to the FPC trace circuit (13) through the dedicated driver IC (5).

[0030] The ESD surrounding circuit (12) is connected to the silver paste PAD area (7). The ESD surrounding circuit (12) is located above the bottom ITO glass (3) and is distributed around its edge. There are multiple contact segments between the silver paste PAD area (7) and the loop of the ESD surrounding circuit (12).

[0031] Please refer to the polarizer POL (1) in the drawing. The EC coating (8) is a conductive layer, and its side is electrically connected to the silver paste PAD area (7) through coating silver paste.

[0032] Please refer to the ITO glass (2) in the drawing. An electromagnetic shielding film EMI (10) is provided outside the flexible printed circuit board FPC (6).

[0033] The specific implementation manner of the present utility model is as follows: To improve the ultra-high charge discharge tolerance level and achieve the true industrial finished product antistatic level of more than KV for the dedicated driver IC (5) of the positive and negative polarizers POL (1), the protection design of the customer's finished product is integrated into the display module. Newly developed LCD materials and corresponding trace designs for the display module are selected. A dedicated driver IC (5) is selected. The FPC connection is optimized. The traditional manufacturing process and development of the black and white display screen, and the silver paste process of the black and white display module are carried out. Referring to the polarizer POL (1) and the ITO glass (2) in the drawing, in order to withstand ultra-high charge discharge, the display module itself needs to improve the antistatic level. On the substrate surface of the conventional surface ITO glass (2), an EC-COATING process is added, and a transparent conductive layer is plated on the whole surface. And special circuit designs are made on the bottom ITO glass (3), and silver paste PADs are added at the step joints. The black and white liquid crystal display device of this application is produced by the production manufacturing equipment and process of the industry's conventional black and white liquid crystal display devices. When attaching the polarizer POL (1), the minimum distance from the polarizer to the glass outer shape size is 0.EC coating (8) mm according to the designed size.

[0034] Referring to the drawings, on the outer surface of the ITO glass (2) of the reference drawing and the bottom ITO glass (3), a layer of electromagnetic shielding film EMI (10) is coated. Through the production and manufacturing equipment and processes of the industry's conventional display modules, the above-mentioned black and white liquid crystal display device, the dedicated driving IC (5), and the flexible printed circuit board FPC (6) with the electromagnetic film processed are used to produce a display module through the COG process and the FOG process. Then, a transparent conductive layer plated on the conductive surface ITO glass (2) at the silver paste PAD area (7) of the black and white liquid crystal display device is silver-pasted at the silver paste PAD to produce the display module of this utility model that can withstand ultra-high charge discharge.

[0035] The above exemplary description of the present utility model is made in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A display module capable of withstanding ultra-high charge discharge, characterized in that: The display module comprises: A bottom ITO glass (3), one side of which is provided with a bottom polarizer POL (4); The surface ITO glass (2) is arranged on one side of the bottom ITO glass (3), and the other side thereof is a surface polarizer POL (1), and an EC coating (8) is arranged between the surface ITO glass (2) and the surface polarizer POL (1); and a silver paste PAD area (7) is arranged on the bottom ITO glass (3); A flexible printed circuit board FPC (6) comprises a ground terminal and is electrically connected to one side of the bottom ITO glass (3).

2. The display module capable of withstanding ultra-high charge discharge according to claim 1, characterized in that: One end margin of the bottom ITO glass (3) exceeds the margin of the surface ITO glass (2) and is provided with a dedicated driver IC (5), and the dedicated driver IC (5) is electrically connected to the flexible printed circuit board FPC (6).

3. The display module capable of withstanding ultra-high charge discharge according to claim 1, characterized in that: The silver paste PAD area (7) is electrically connected to the side edges of the planar polarizer POL (1), the EC coating (8), and the planar ITO glass (2).

4. The display module capable of withstanding ultra-high charge discharge according to claim 2, characterized in that: The display module also includes an ESD surround circuit (12), an FPC routing circuit (13) is provided inside the flexible printed circuit board (FPC) (6), and the ESD surround circuit (12) and the FPC routing circuit (13) are connected via the dedicated driver IC (5).

5. The display module capable of withstanding ultra-high charge discharge according to claim 4, characterized in that: The ESD surround circuit (12) is connected to the silver paste PAD area (7), the ESD surround circuit (12) is located above the bottom ITO glass (3) and is distributed around its edge, and there are multiple contact sections between the silver paste PAD area (7) and the loop of the ESD surround circuit (12).

6. The display module capable of withstanding ultra-high charge discharge according to claim 1, characterized in that: The EC coating (8) is a conductive layer, and its side is electrically connected to the silver paste PAD area (7) through the coating of silver paste.

7. The display module capable of withstanding ultra-high charge discharge according to claim 1, characterized in that: An electromagnetic shielding film EMI (10) is provided outside the flexible printed circuit board FPC (6).

8. The display module capable of withstanding ultra-high charge discharge according to claim 1, characterized in that: The distance between the surface polarizer POL (1) and the bottom ITO glass (3) is greater than 0.EC coating (8) mm.

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