ITO (Indium Tin Oxide) touch film on panel for oven
By designing an ITO touch film containing PET waterproof layer and silver/carbon paste conductive wires in a capacitive touch screen, the problem of waterproofing and connection complexity of capacitive touch screen is solved, and efficient use and production costs are achieved in wet environments.
Patent Information
- Application Number
- CN202421094353.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The existing capacitive touch screens have shortcomings in waterproofing and line connection complexity, making them difficult to be effectively used in wet environments.
A kind of ITO touch film on the panel for oven is designed, including the OCA layer, PET substrate layer, ITO film layer, PET waterproof layer and PET protective film layer, using silver paste and/or carbon paste as conductive lines, combined with Flexible circuit boards and conductive ink form sensor conductive films, improving the waterproof performance and production efficiency of the product.
It realizes the waterproof effect used in wet environments and reduces production costs, while improving the conduction speed and the accuracy of input information. It is suitable for ovens and other occasions.
Smart Images
Figure CN222260037U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of touch screens, and in particular relates to an ITO touch film on a panel used for an oven. Background Art
[0002] At present, common touch screens are mainly divided into resistive and capacitive types. The working principle of the capacitive touch screen is to use the current induction of the human body to work. It has been widely used in many electronic products, such as mobile phones, tablet computers and other digital products; however, the existing capacitive touch screens still have some shortcomings, such as: poor waterproof effect, and the need to make electrical connections of the lines before putting them into use, which is difficult and complicated to connect. Therefore, it is very important to obtain an ITO touch film on the panel of the oven that overcomes the above defects. Utility Model Content
[0003] In order to solve at least one of the above technical problems, the utility model provides an ITO touch film on a panel for an oven, comprising an OCA layer, a PET substrate layer, an ITO film layer, a PET waterproof layer, and a PET protective film layer arranged in sequence; the ITO film layer is at least partially provided with conductive ink, the ITO film layer also includes a flexible circuit board connected to one side of the ITO film layer, the ITO film layer is provided with a conductive wire connected to the conductive ink, and the conductive wire extends to the flexible circuit board; at least a portion of the ITO touch film is a touch area.
[0004] The conductive line is silver paste and / or carbon paste. Silver paste and / or carbon paste are used to replace the currently commonly used silver paste as the conductive line, saving production costs.
[0005] The OCA layer is provided with a first extension part matched with the flexible circuit board. The end of the first extension part is provided with a reinforcing sheet matched with the flexible circuit board.
[0006] The PET substrate layer is provided with a second extension portion that matches the flexible circuit board.
[0007] The PET waterproof layer is provided with a third extension portion which cooperates with the flexible circuit board.
[0008] The PET protective film layer is provided with foam.
[0009] The thickness of the OCA layer is 0.125 mm, the thickness of the PET substrate layer is 0.125 mm, the thickness of the PET waterproof layer is 0.05 mm, and the thickness of the PET protective film layer is 0.03 mm. A release film is provided on the OCA layer. The thickness from the reinforcing sheet to the conductive wire is 0.3 mm.
[0010] The utility model adopts an OCA layer, which is an OCA optical adhesive, has good bonding strength, can be cured at room temperature or medium temperature, and has the characteristics of small curing shrinkage.
[0011] The PET base layer, PET waterproof layer and PET protective film layer are made of PET material, which has good mechanical properties, impact strength is 3-5 times that of other films, good folding resistance, low gas and water vapor permeability, excellent gas, water, oil and odor resistance, non-toxic, tasteless, hygienic and safe.
[0012] Compared with the prior art, the advantages of the utility model are: the utility model has a simple structure, and the OCA layer, PET substrate layer, ITO film layer, PET waterproof layer, PET protective film layer cooperate with silver paste, carbon paste and ink layer to form a sensing conductive film, which improves the product yield and reduces production costs. At the same time, it has the advantages of sensitive conduction speed and accurate input information. The waterproof effect of PET allows the utility model to be used in occasions such as ovens where water and oil may enter. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a three-dimensional diagram of the utility model;
[0014] Figure 2 This is the dimension drawing of the utility model after assembly;
[0015] Figure 3 It is an expanded side view of the utility model;
[0016] Reference numerals:
[0017] 1-OCA layer; 101-reinforcement sheet; 2-PET substrate layer; 3-ITO film layer; 301-flexible circuit board; 302-conductive ink; 303-conductive wire; 4-PET waterproof layer; 5-PET protective film layer; 6-foam. DETAILED DESCRIPTION
[0018] In order to enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, and the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention.
[0019] Referring to the accompanying drawings, the utility model adopts the following technical scheme: an ITO touch film on a panel for an oven, comprising an OCA layer 1, a PET substrate layer 2, an ITO film layer 3, a PET waterproof layer 4, and a PET protective film layer 5 arranged in sequence; the ITO film layer 3 is at least partially provided with a conductive ink 302, the ITO film layer 3 also includes a flexible circuit board 301 connected to one side of the ITO film layer 3, the ITO film layer 3 is provided with a conductive wire 303 connected to the conductive ink 302, and the conductive wire 303 extends to the flexible circuit board 301; at least a portion of the ITO touch film is a touch area.
[0020] The conductive wire 303 is made of silver paste and / or carbon paste. Using silver paste and / or carbon paste to replace the currently commonly used silver paste as the conductive wire 303 saves production costs.
[0021] The OCA layer 1 is integrally formed with a first extension part that matches the flexible circuit board 301. The end of the first extension part is fixed with a reinforcing sheet 101 that matches the flexible circuit board 301, wherein the reinforcing sheet is made of plastic and can be fixed to the first extension part by PET UV adhesive.
[0022] The PET substrate layer 2 is integrally formed with a second extension portion that cooperates with the flexible circuit board 301 .
[0023] The PET waterproof layer 4 is integrally formed with a third extension portion that cooperates with the flexible circuit board 301 .
[0024] The PET protective film layer 5 is provided with foam 6 .
[0025] The thickness of the OCA layer 1 is 0.125 mm, the thickness of the PET substrate layer 2 is 0.125 mm, the thickness of the PET waterproof layer 4 is 0.05 mm, and the thickness of the PET protective film layer 5 is 0.03 mm. A release film is provided on the OCA layer 1. The thickness from the reinforcing sheet 101 to the conductive wire 303 is 0.3 mm.
[0026] The utility model adopts an OCA layer 1, which is an OCA optical adhesive with good bonding strength, can be cured at room temperature or medium temperature, and has the characteristics of small curing shrinkage.
[0027] The PET substrate layer 2, the PET waterproof layer 4 and the PET protective film layer 5 are made of PET material and have good mechanical properties. The impact strength is 3-5 times that of other films, the folding resistance is good, the gas and water vapor permeability is low, and it has excellent gas, water, oil and odor resistance, is non-toxic, tasteless, and has good sanitation and safety.
[0028] Compared with the prior art, the advantages of the utility model are: the utility model has a simple structure, the OCA layer 1, the PET substrate layer 2, the ITO film layer 3, the PET waterproof layer 4, the PET protective film layer 5 cooperate with the silver paste, the carbon paste and the ink layer to form a sensing conductive film, which improves the product yield and reduces the production cost. At the same time, it has the advantages of sensitive conduction speed and accurate input information. The waterproof effect of PET allows the utility model to be used in occasions such as ovens where water and oil may enter.
[0029] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims
1. An ITO touch film on a panel for an oven, characterized in that: It comprises an OCA layer (1), a PET substrate layer (2), an ITO film layer (3), a PET waterproof layer (4), and a PET protective film layer (5) which are arranged in sequence; The ITO film layer (3) is at least partially provided with conductive ink (302), the ITO film layer (3) further comprising a flexible circuit board (301) connected to one side of the ITO film layer (3), the ITO film layer (3) is provided with a conductive wire (303) connected to the conductive ink (302), and the conductive wire (303) extends to the flexible circuit board (301); At least a portion of the ITO touch film is a touch area.
2. The ITO touch film on the panel of the oven according to claim 1, characterized in that: The conductive wire (303) is silver paste and / or carbon paste.
3. The ITO touch film on the panel of the oven according to claim 1, characterized in that: The OCA layer (1) is provided with a first extension portion that cooperates with the flexible circuit board (301).
4. The ITO touch film on the panel of the oven according to claim 3, characterized in that: The end of the first extension portion is provided with a reinforcing sheet (101) that cooperates with the flexible circuit board (301).
5. The ITO touch film on the panel of the oven according to claim 1, characterized in that: The PET substrate layer (2) is provided with a second extension portion that cooperates with the flexible circuit board (301).
6. The ITO touch film on the panel of the oven according to claim 1, characterized in that: The PET waterproof layer (4) is provided with a third extension portion that cooperates with the flexible circuit board (301).
7. The ITO touch film on the panel of the oven according to claim 1, characterized in that: The PET protective film layer (5) is provided with foam (6).
8. The ITO touch film on the panel of the oven according to claim 1, characterized in that: The thickness of the OCA layer (1) is 0.125 mm, the thickness of the PET substrate layer (2) is 0.125 mm; the thickness of the PET waterproof layer (4) is 0.05 mm, and the thickness of the PET protective film layer (5) is 0.03 mm.
9. The ITO touch film on the panel of the oven according to claim 1, characterized in that: A release film is provided on the OCA layer (1).
10. The ITO touch film on the panel of the oven according to claim 4, characterized in that: The thickness from the reinforcing sheet (101) to the conductive wire (303) is 0.3 mm.