Production process of ultra-wide polaroid

Abstract

The invention relates to the technical field of polaroid production, in particular to a production process of an ultra-wide polaroid, which comprises the following steps: S1, pretreatment: washing a CF film and a TFT film with water, and then sequentially carrying out the treatment of moistening, dyeing and washing off flooding color again; s2, stretching is conducted, specifically, the CF film and the TFT film are stretched respectively, and the CF film and the TFT film are stretched from the standard size to the ultra-wide amplitude size with the length and the width meeting the use requirements; s3, color complementing: performing color complementing treatment on the stretched CF film and the stretched TFT film, and drying to obtain the CF film and the TFT film with a polarization effect; s4, cutting: cutting the stretched CF film and TFT film with the ultra-wide amplitude size according to a set size to form a CF single film and a TFT single film; s5, composite lamination: placing the CF single film and the TFT single film in a manner of being perpendicular to each other, carrying out composite lamination and drying, and then forming a polaroid; the technical problems that in the prior art, an ultra-wide polaroid needs to be specially customized, and the cost is high are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of polarizer production, and in particular to a production process of an ultra-wide polarizer. Background Art

[0002] Polarizer is one of the three key components of liquid crystal display (LCD). It is a composite material made by stretching polyvinyl alcohol film (PVA) and compounding it with triacetyl cellulose film (TAC). It can achieve high brightness and high contrast characteristics of liquid crystal display. In the prior art, since the width of the polarizer mainly depends on the stretching of the polyvinyl alcohol film (PVA), the stretching performance of the polyvinyl alcohol film (PVA) is limited, the width of the polarizer that can be produced is limited. For the production of ultra-wide polarizers, the required raw materials need to be specially customized, which is costly. Summary of the invention

[0003] The present invention provides a production process for an ultra-wide polarizer to solve the technical problem in the prior art that ultra-wide polarizers need to be specially customized and are costly.

[0004] In order to solve the above problems, the production process of the ultra-wide polarizer provided by the present invention adopts the following technical solutions:

[0005] A production process for an ultra-wide polarizer comprises the following steps:

[0006] S1: Pretreatment, washing the CF film and TFT film with water, and then sequentially performing moistening, dyeing and washing again to remove the floating color;

[0007] S2: stretching, stretching the CF film and the TFT film respectively, stretching them from the standardized size to an ultra-wide size whose length and width meet the use requirements;

[0008] S3: color complementation, performing color complementation treatment on the stretched CF film and TFT film and drying them to obtain the CF film and TFT film with polarization effect;

[0009] S4: cutting, cutting the stretched ultra-wide CF film and TFT film according to a set size to form a single CF film and a single TFT film;

[0010] S5: Composite lamination, placing the CF single film and the TFT single film in a mutually perpendicular manner, composite laminating and drying, and then forming a polarizer.

[0011] The beneficial effect of the production process of the ultra-wide polarizer provided by the present invention is: the present invention stretches the CF film and the TFT film from the standardized size to the ultra-wide size whose length and width meet the use requirements, and then cuts them to form a CF single film and a TFT single film that meet the set size. Finally, the CF single film and the TFT single film are composite laminated to form a polarizer. Compared with the prior art, there is no need to customize the raw materials, and the ultra-wide polarizer can be formed through the processes of stretching, cutting and composite lamination. On the premise of meeting the use requirements and use effects, the cost is lower. The present invention effectively solves the technical problem that the ultra-wide polarizer in the prior art needs to be specially customized and has high cost.

[0012] Furthermore, the extra-wide dimension of the CF film is 1.5 m, and the extra-wide dimension of the TFT film is 2.6 m.

[0013] Furthermore, the standardized size of the CF film and the TFT film is 5.8 m.

[0014] Furthermore, the length and width of the cut CF single film are both 2.6 m.

[0015] Furthermore, the length dimension of the cut TFT single film is 2.6 m, and the width dimension is 1.5 m.

[0016] Furthermore, the stretching speed of the CF film is 3-5 m / min, and the temperature of the stretching environment is 80-150°C.

[0017] Furthermore, the stretching speed of the TFT film is 1-10 m / min, and the temperature of the stretching environment is 80-150° C.

[0018] Furthermore, the ambient temperature when the CF single film and the TFT single film are dried after composite lamination is 80-150°C. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0020] Figure 1 The present invention provides a flowchart of the production process of the ultra-wide polarizer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0022] It should be noted that the main idea of ​​the present invention is to form an ultra-wide polarizer by stretching, cutting and composite laminating the CF film and the TFT film. Under the premise of meeting the use requirements and effects, the cost is lower and there is no need to customize the raw materials as in the prior art. This solves the technical problem in the prior art that ultra-wide polarizers require special customization and high cost.

[0023] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0024] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0025] Embodiment 1 of the production process of the ultra-wide polarizer provided by the present invention:

[0026] like Figure 1 As shown, the production process of ultra-wide polarizer includes the following steps:

[0027] S1: Pretreatment, washing the CF film and TFT film with water, and then sequentially performing moistening, dyeing and washing again to remove the floating color;

[0028] S2: stretching, stretching the CF film and the TFT film respectively, stretching them from the standardized size to an ultra-wide size whose length and width meet the use requirements;

[0029] S3: color complementation, performing color complementation treatment on the stretched CF film and TFT film and drying them to obtain the CF film and TFT film with polarization effect;

[0030] S4: cutting, cutting the stretched ultra-wide CF film and TFT film according to a set size to form a single CF film and a single TFT film;

[0031] S5: Composite lamination, placing the CF single film and the TFT single film in a mutually perpendicular manner, composite laminating and drying, and then forming a polarizer.

[0032] Specifically, the ultra-wide dimension of the CF film is 1.5 m, and the ultra-wide dimension of the TFT film is 2.6 m.

[0033] In addition, the standardized size of the CF film and the TFT film is 5.8 m.

[0034] Regarding the CF single film and the TFT single film, the length and width dimensions of the cut CF single film are both 2.6 m, and the length and width dimensions of the cut TFT single film are 2.6 m and 1.5 m respectively.

[0035] Meanwhile, the stretching speed of the CF film is 3-5 m / min, and the temperature of the stretching environment is 80-150° C. The stretching speed of the TFT film is 1-10 m / min, and the temperature of the stretching environment is 80-150° C.

[0036] The ambient temperature when the CF single film and the TFT single film are dried after composite lamination is 80-150°C.

[0037] In addition, in the present embodiment, in the production of the ultra-wide polarizer, the CF film and the TFT film are arranged perpendicular to each other during composite lamination, which has the following advantages:

[0038] 1)Optimization of optical performance

[0039] Improve contrast: The CF film and TFT film are perpendicular to each other, which can better polarize and control the light when it passes through, making the screen darker when displaying black and whiter when displaying white, significantly improving the contrast of the picture, making the image clearer and more vivid, and the colors more bright and realistic.

[0040] Expanding viewing angle: This vertical arrangement is conducive to the uniform propagation and polarization of light at different angles, reducing image distortion and color deviation caused by changes in viewing angle, thereby expanding the viewable viewing angle range and enabling viewers to obtain better visual effects from different angles.

[0041] 2) Improved electrical performance

[0042] Reduce crosstalk: TFT film is used to control the switching and current transmission of liquid crystal pixels, while CF film is mainly used to filter and generate light of specific colors. The vertical arrangement of the two can reduce the electrical crosstalk between pixels, improve the accuracy and stability of signal transmission, and thus improve the display quality of the image, avoiding problems such as image blur and ghosting.

[0043] Improve response speed: The mutually perpendicular structures can make the electric field distribution more uniform, and the liquid crystal molecules flip more quickly and neatly under the action of the electric field, thereby speeding up the response speed of pixels and reducing the ghosting phenomenon of dynamic images. It is particularly suitable for displaying rapidly changing images and video content.

[0044] 3) Process and structural stability

[0045] Simplified process: Vertical arrangement makes it easier to achieve precise alignment and bonding in the production process, reduces the process difficulty and complexity in the production process, improves production efficiency and product yield, and is conducive to large-scale production.

[0046] Enhanced structural stability: This arrangement makes the combination between the CF film and the TFT film tighter and more stable, forming an organic whole, enhancing the structural stability of the polarizer, reducing problems such as film separation and deformation caused by external forces, temperature changes and other factors during use, and improving the reliability and service life of the product.

[0047] The working principle of the production process of the ultra-wide polarizer provided by the present invention is: stretching the CF film and the TFT film from a standardized size to an ultra-wide size whose length and width meet the use requirements, and then cutting them to form a CF single film and a TFT single film that meet the set size; finally, the CF single film and the TFT single film are compositely laminated to form a polarizer. Compared with the prior art, there is no need to customize the raw materials, and the ultra-wide polarizer can be formed through the processes of stretching, cutting and composite lamination. On the premise of meeting the use requirements and use effects, the cost is lower.

[0048] Embodiment 2 of the production process of the ultra-wide polarizer provided by the present invention:

[0049] The main difference between it and Example 1 is:

[0050] In Example 1, the length and width of the cut CF single film are both 2.6 m.

[0051] In this embodiment, the length and width of the cut CF single film can be adjusted according to actual needs.

[0052] Embodiment 3 of the production process of the ultra-wide polarizer provided by the present invention:

[0053] The main difference between it and Example 1 is:

[0054] In Example 1, the stretching speed of the CF film is 3-5 m / min, and the temperature of the stretching environment is 80-150°C.

[0055] In this embodiment, the stretching speed of the CF film can also be adjusted within the range of 1-10 m / min, and the temperature of the stretching environment can also be adjusted within the range of 120-130°C.

[0056] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0057] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A production process for an ultra-wide polarizer, characterized in that: The steps include: S1: Pretreatment, washing the CF film and TFT film with water, and then sequentially performing moistening, dyeing and washing again to remove the floating color; S2: stretching, stretching the CF film and the TFT film respectively, stretching them from the standardized size to an ultra-wide size whose length and width meet the use requirements; S3: color complementation, performing color complementation treatment on the stretched CF film and TFT film and drying them to obtain the CF film and TFT film with polarization effect; S4: cutting, cutting the stretched ultra-wide CF film and TFT film according to a set size to form a single CF film and a single TFT film; S5: Composite lamination, placing the CF single film and the TFT single film in a mutually perpendicular manner, composite laminating and drying, and then forming a polarizer.

2. The production process of the ultra-wide polarizer according to claim 1, characterized in that: The ultra-wide dimension of the CF film is 1.5 m, and the ultra-wide dimension of the TFT film is 2.6 m.

3. The production process of the ultra-wide polarizer according to claim 2, characterized in that: The standardized size of the CF film and the TFT film is 5.8 m.

4. The production process of the ultra-wide polarizer according to claim 3, characterized in that: The length and width of the cut CF single film are both 2.6 m.

5. The production process of the ultra-wide polarizer according to claim 4, characterized in that: The length dimension of the cut TFT single film is 2.6 m, and the width dimension is 1.5 m.

6. The production process of the ultra-wide polarizer according to any one of claims 1 to 5, characterized in that: The stretching speed of the CF film is 3-5 m / min, and the temperature of the stretching environment is 80-150°C.

7. The production process of the ultra-wide polarizer according to claim 6, characterized in that: The stretching speed of the TFT film is 1-10 m / min, and the temperature of the stretching environment is 80-150° C.

8. The production process of the ultra-wide polarizer according to any one of claims 1 to 5, characterized in that: The ambient temperature when the CF single film and the TFT single film are dried after composite lamination is 80-150°C.

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