Resistance touch screen capable of automatically heating at low temperature

Abstract

The utility model discloses a low-temperature automatic heating resistive touch screen, which belongs to the technical field of touch screens and comprises a resistive touch screen, a lead, a flexible circuit board, a component area of the flexible circuit board, an indium tin oxide coating I TO on the back of resistive touch screen substrate glass, conductive tin metal, a PET (polyethylene terephthalate) film, the resistive touch screen substrate glass and a touch screen user interface. The resistive touch screen is formed by a PET film and resistive touch screen substrate glass, the wires are used for leading the two ends of an indium tin oxide coating I TO on the back face of the resistive touch screen substrate glass to the flexible circuit board, and a temperature sensing device is arranged on the flexible circuit board. The component area of the flexible circuit board comprises a temperature sensing device and a power supply control circuit; according to the resistive touch screen device, the low-temperature automatic heating function can be achieved, the touch and display performance of the display module and the resistive touch screen in the low-temperature environment is effectively improved, and the user experience of using the touch screen device in the low-temperature environment is improved.

Description

Technical Field

[0001] This utility model relates to the field of touch screen technology, specifically to a low-temperature automatic heating resistive touch screen. Background Technology

[0002] Resistive touchscreens are typically used in conjunction with liquid crystal display (LCD) modules. In low-temperature environments, they exhibit issues such as refresh delays, slow response times, hardening of the touchscreen material, high touch pressure, and poor touch experience. To improve these performance issues in low-temperature environments, current technology usually involves adding a transparent glass plate or film with heating functionality beneath the overall LCD display module. A certain voltage is then applied to cause the heated glass or film to radiate heat outwards.

[0003] As mentioned above, the power-on circuit of the heating element needs to be designed by the customer, and the customer also needs to determine when to power it. At the same time, the customer's design and use are relatively complicated, and the position of the heating element is far from the component to be heated, resulting in low heating efficiency. In low-temperature environments, the touch and display performance of the display module and the resistive touch screen will be severely affected, such as sluggish touch screen response and blurry display, which will cause great inconvenience to users. Therefore, this device provides a resistive touch screen with automatic heating at low temperatures. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a low-temperature automatic heating resistive touchscreen to solve the aforementioned technical problems.

[0005] This utility model embodiment adopts the following technical solution: it includes a resistive touch screen, wires, a flexible circuit board, a component area of ​​the flexible circuit board, an indium tin oxide (ITO) plating layer on the back of the resistive touch screen substrate glass, conductive tin metal, a PET film, the resistive touch screen substrate glass, and a touch screen user interface; the resistive touch screen is formed by the PET film and the resistive touch screen substrate glass; the wires are used to lead the two ends of the ITO plating layer on the back of the resistive touch screen substrate glass to the flexible circuit board; a temperature sensing device is provided on the flexible circuit board; the component area of ​​the flexible circuit board includes a temperature sensing device and a power supply control circuit; the touch screen user interface, in addition to transmitting data signals from the resistive touch screen, also includes a heating power supply interface; the back of the resistive touch screen substrate glass is provided with a heating function coating, and the heating circuit is set on the circuit board of the module and has circuit parameters set; when the temperature drops to a set value, the heating circuit can be activated to heat the heating element, thereby achieving temperature compensation for the display module and the resistive touch screen; when the temperature rises to the set value, the heating circuit is deactivated.

[0006] Furthermore, as the temperature decreases, the electrical performance parameters of the temperature sensing device change, causing changes in the electrical parameters of the temperature sensing device drive circuit. Once the changes reach a certain level, the power supply circuit of the heating element is enabled.

[0007] Furthermore, the indium tin oxide (ITO) coating on the back of the resistive touchscreen substrate glass radiates heat outward when electricity is applied.

[0008] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0009] The resistive touch screen of this invention can realize the automatic heating function at low temperatures, effectively improving the touch and display performance of the display module and the resistive touch screen in low-temperature environments, and enhancing the user experience of using touch screen devices in low-temperature environments.

[0010] The advantage of this improved device is that this type of resistive touch screen module only needs to be assembled onto the required LCD module and connected to the required power supply. There is no need to design and configure the corresponding circuits. Customers can get good touch and display effects at low temperatures.

[0011] The heating principle of this device is as follows: A heating coating is applied to the back of the resistive touchscreen substrate glass, and the heating circuit is integrated into the module's circuit board. A temperature sensor is also included. After the circuit parameters are set, when the temperature drops to the set value, the electrical performance parameters of the temperature sensor change accordingly, causing a change in the electrical parameters of the temperature sensor's drive circuit. Once the change reaches a certain level, the power supply circuit for the heating element is enabled. Through the wires, the indium tin oxide plating is powered and radiates heat outwards, compensating for the temperature around the touchscreen and thus initiating heating of the heating element. This achieves temperature compensation for the display module and the resistive touchscreen. When the temperature rises to the set value, the heating circuit is deactivated, and the heating coating ceases to function. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a front view of the present invention;

[0014] Figure 2 This is a rear view of the present invention;

[0015] Figure 3 This is a cross-sectional view of the present invention;

[0016] Figure 4This is a schematic diagram of the principle, steps, and structure of this utility model. Figure 1 ;

[0017] Figure 5 This is a schematic diagram of the principle, steps, and structure of this utility model. Figure 2 .

[0018] Figure Labels

[0019] 1. Resistive touch screen; 2. Conductor wire; 3. Flexible circuit board; 4. Component area of ​​flexible circuit board; 5. Indium tin oxide plating (ITO); 6. Conductive tin metal; 7. PET film; 8. Resistive touch screen substrate glass; 9. Touch screen user interface. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0022] This utility model provides a low-temperature automatic heating resistive touch screen, including a resistive touch screen 1, wires 2, a flexible circuit board 3, a component area 4 of the flexible circuit board, an indium tin oxide (ITO5) plating layer on the back of the resistive touch screen substrate glass 8, conductive tin metal 6, a PET film 7, the resistive touch screen substrate glass 8, and a touch screen user interface 9. The resistive touch screen 1 is formed by the PET film and the resistive touch screen substrate glass 8. The wires 2 are used to lead the two ends of the ITO5 plating layer on the back of the resistive touch screen substrate glass 8 to the flexible circuit board 3. The flexible circuit board 3 is provided with a temperature sensing device. The component area 4 of the flexible circuit board includes a temperature sensing device and a power supply control circuit. In addition to transmitting data signals from the resistive touch screen 1, the touch screen user interface 9 also includes a power supply interface for heating. The back of the resistive touch screen substrate glass 8 is provided with a heating function coating. The heating circuit is set on the flexible circuit board 3 of the module and has circuit parameters. When the temperature drops to a set value, the heating circuit is activated to heat the heating element, thereby achieving temperature compensation for the display module and the resistive touch screen 1. When the temperature rises to the set value, the heating circuit is deactivated.

[0023] The resistive touchscreen 1 of this device can realize the automatic heating function at low temperatures, which effectively improves the touch and display performance of the display module and the resistive touchscreen 1 in low-temperature environments, and enhances the user experience of using touchscreen devices in low-temperature environments.

[0024] The advantage of this improved device is that this type of resistive touch screen module only needs to be assembled onto the required LCD module and connected to the required power supply. There is no need to design and configure the corresponding circuits. Customers can get good touch and display effects at low temperatures.

[0025] The heating principle of this device is as follows: The heating coating is applied to the back of the glass substrate 8 of the resistive touch screen, and the heating circuit is placed on the flexible circuit board 3 of the module. It is equipped with a temperature sensing device. After the circuit parameters are set, when the temperature drops to the set value, the electrical performance parameters of the temperature sensing device will change as the temperature decreases, thereby causing the electrical parameters of the temperature sensing device drive circuit to change. After the change reaches a certain level, the power supply circuit of the heating element is enabled. After the indium tin oxide plating ITO5 is powered through the wire 2, it radiates heat energy outward to compensate for the temperature around the resistive touch screen 1, thereby starting to heat the heating element and realize the temperature compensation of the display module and the resistive touch screen 1. When the temperature rises to the set value, the heating circuit is deactivated and the heating coating stops working.

[0026] In a further preferred embodiment of this utility model, as the temperature decreases, the electrical performance parameters of the temperature sensing device change, causing a change in the electrical parameters of the temperature sensing device drive circuit. After the change reaches a certain level, the power supply circuit of the heating element is enabled, and the indium tin oxide plating layer 1TO5 on the back of the resistive touch screen substrate glass 8 radiates heat outward through the application of electricity.

[0027] As the temperature decreases, the electrical performance parameters of the temperature sensing device on the flexible circuit board 3 change, which in turn causes a change in the electrical parameters of the temperature sensing device drive circuit. When the change reaches a certain level, it enables the power supply circuit of the heating element to be powered through the wire 2. After the indium tin oxide plating layer ITO5 is powered, it radiates heat energy outward to compensate for the temperature around the resistive touch screen 1, thereby realizing the automatic heating function at low temperatures. When this type of resistive touch screen 1 is installed in the corresponding LCD display module, it can achieve better display and touch effects at low temperatures.

[0028] Specific operating instructions:

[0029] Assembly method: The PET film and the resistive touch screen substrate glass 8 are assembled to form the resistive touch screen 1 structure. The indium tin oxide plating layer ITO5 on the back of the resistive touch screen substrate glass 8 is connected to the flexible circuit board 3 through the wire 2. Temperature sensing devices and power supply control circuits are installed in the component area 4 of the flexible circuit board. The touch screen user interface 9 is connected to the data signal transmission line and the heating power supply interface.

[0030] Setting parameters: Based on actual needs, set the circuit parameters of the heating circuit, and determine the temperature threshold for enabling and de-enabling the heating circuit using the temperature sensing device.

[0031] Usage: When the device is in a low-temperature environment, when the temperature drops to the set value, the electrical performance parameters of the temperature sensing device change, triggering the heating circuit to be enabled. The indium tin oxide plating ITO5 is powered on and radiates heat outward to compensate for the temperature of the display module and the resistive touch screen 1. When the temperature rises to the set value, the heating circuit is deactivated and heating stops.

[0032] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A low temperature self-heated resistive touch screen characterized by: Includes a resistive touch screen (1), wires (2), flexible circuit board (3), component area of ​​flexible circuit board (4), indium tin oxide (ITO) coating on the back of resistive touch screen substrate glass (8) (5), conductive tin metal (6), PET film (7), resistive touch screen substrate glass (8) and touch screen user interface (9). The resistive touch screen (1) is formed from a PET film and a resistive touch screen substrate glass (8); The wire (2) is used to lead the two ends of the indium tin oxide plating layer ITO (5) on the back of the resistive touch screen substrate glass (8) to the flexible circuit board (3). The flexible circuit board (3) is provided with a temperature sensing device; The component area (4) of the flexible circuit board includes temperature sensing devices and power supply control circuits; In addition to transmitting data signals from the resistive touchscreen (1), the touchscreen user interface (9) also includes a power supply interface for heating. The back of the resistive touch screen substrate glass (8) is coated with a heating function, and the heating circuit is set on the circuit board of the module and has circuit parameters set.

2. A cryogenically self-heated resistive touch screen as defined in claim 1, wherein: The indium tin oxide (ITO) coating (5) on the back of the resistive touch screen substrate glass (8) radiates heat outward when electricity is applied.

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