Self-heating touch display

Abstract

The utility model discloses an embodiment provides a kind of self-heating touch display screen, comprising: liquid crystal display module;And with the glass substrate of back surface adhering on liquid crystal display module, the positive surface of glass substrate is shaped with touch control circuit pattern while back surface is shaped with ITO film, the back surface of glass substrate is shaped with a strip parallel to edge extension and with ITO film electric connection heating electrode each in the edge of opposite two sides, two heating electrode and flexible circuit board are connected, and flexible circuit board other end extends glass substrate to connect power supply.An embodiment of the utility model is shaped with ITO film on the back surface of glass substrate and is shaped with a strip heating electrode each in the edge of opposite two sides, and heating electrode is connected power supply by flexible circuit board, when touch display screen works, power supply is powered for two heating electrode and ITO film by flexible circuit board, so that it generates heat and carries out heating to liquid crystal display module, it is favorable to make touch display screen still can have good picture quality when using in low temperature environment.

Description

Technical Field

[0001] This utility model relates to the field of touch display technology, and in particular to a self-heating touch display. Background Technology

[0002] The operating temperature range of LCD touch screens is typically -20℃ to 70℃. If used in a lower temperature environment, blurring or ghosting may occur. This is because the activity of the liquid crystal molecules in the screen slows down, resulting in a longer panel response time. This means a slower refresh rate, leading to a less clear image and lower image quality. Utility Model Content

[0003] The technical problem to be solved by this utility model embodiment is to provide a self-heating touch screen to improve the image quality when used in low-temperature environments.

[0004] To solve the above-mentioned technical problems, the present invention first provides the following technical solution: a self-heating touch display screen, comprising: LCD display module; and A glass substrate is attached to the back of the liquid crystal display module. The front of the glass substrate is formed with a touch circuit pattern and the back is formed with an ITO film. On the opposite sides of the back of the glass substrate, there is a heating electrode that extends parallel to the edge and is electrically connected to the ITO film. The two heating electrodes are connected to a flexible circuit board. The other end of the flexible circuit board extends out of the glass substrate to connect to a power source.

[0005] Furthermore, the flexible circuit board is bonded to the heating electrode via an anisotropic conductive adhesive film.

[0006] Furthermore, the flexible circuit board completely covers the two heating electrodes.

[0007] Furthermore, the heating electrode is formed using silver paste printing.

[0008] Furthermore, the heating electrodes are formed on the inner edges of the two opposite long sides of the glass substrate.

[0009] Furthermore, a cover plate is provided on the outer side of the front side of the glass substrate.

[0010] Furthermore, the ITO film is formed on the entire back side of the glass substrate.

[0011] After adopting the above technical solution, the present invention has at least the following beneficial effects: The self-heating touch screen provided by the present invention forms an ITO film on the back of a glass substrate and forms a heating electrode on each of the opposite side edges. The heating electrodes are then connected to a power supply through a flexible circuit board. Thus, when the touch screen is working, the power supply provides power to the two heating electrodes and the ITO film through the flexible circuit board, causing them to heat up and heat the liquid crystal display module. This allows the liquid crystal molecules in the liquid crystal display module to always be at a relatively high temperature, which is beneficial for the touch screen to still have good image quality when used in a low-temperature environment. It is especially suitable for touch screens that need to be used in special applications that require relatively low temperatures. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an optional embodiment of the self-heating touch display screen of this utility model.

[0013] Figure 2 This is a schematic diagram of the front structure of the glass substrate of an optional embodiment of the self-heating touch display screen of this utility model.

[0014] Figure 3 This is a schematic diagram of the back structure of the glass substrate in an optional embodiment of the self-heating touch display screen of this utility model. Detailed Implementation

[0015] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present utility model and are not intended to limit the present utility model. Moreover, the embodiments and features in the embodiments of the present application can be combined with each other unless otherwise specified.

[0016] like Figures 1-3 As shown, an optional embodiment of the present invention provides a self-heating touch display screen, comprising: LCD display module 1; and A glass substrate 3 is attached to the back of the liquid crystal display module 1. The front of the glass substrate 3 is formed with a touch circuit pattern 30 and the back is formed with an ITO (Indium Tin Oxide) film 32. On the opposite sides of the back of the glass substrate 3, a heating electrode 34 is formed on each side near the edge, extending parallel to the edge and electrically connected to the ITO film 32. The two heating electrodes 34 are connected to a flexible printed circuit (FPC) 36. The other end of the flexible printed circuit 36 ​​extends out of the glass substrate 3 to connect to a power source.

[0017] This invention involves forming an ITO film 32 on the back of a glass substrate 3 and forming a heating electrode 34 on each of the opposite edges. The heating electrodes 34 are then connected to a power source via a flexible circuit board 34. When the touch display is in operation, the power source supplies power to the two heating electrodes 34 and the ITO film 32 through the flexible circuit board 34, causing them to heat the liquid crystal display module 1. This keeps the liquid crystal molecules in the liquid crystal display module 1 at a relatively high temperature, which helps maintain good image quality even in low-temperature environments, making it particularly suitable for touch displays used in special applications requiring relatively low temperatures. Using a flexible circuit board 36 to connect the heating electrodes 34 and the power source not only facilitates assembly but also helps reduce the overall thickness of the finished product. In a specific implementation, the touch circuit pattern 3 is connected to the corresponding touch chip 31.

[0018] In one optional embodiment of this utility model, such as Figure 1 As shown, the flexible circuit board 36 is bonded to the heating electrode 34 via anisotropic conductive film (ACF) 38. This embodiment utilizes anisotropic conductive film 38 to bond the flexible circuit board 36 to the heating electrode 34, resulting in a good connection and ensuring excellent conductivity between the flexible circuit board 36 and the heating electrode 34, while also facilitating control of the finished product thickness.

[0019] In one optional embodiment of this utility model, such as Figure 3 As shown, the flexible circuit board 36 completely covers the two heating electrodes 34. In this embodiment, the flexible circuit board 36 completely covers the two heating electrodes 34, which not only protects the heating electrodes but also enhances the conductivity between the flexible circuit board 36 and the heating electrodes 34.

[0020] In an optional embodiment of this invention, the heating electrode 34 is formed by silver paste printing. Using silver paste printing to form the heating electrode 34 results in good conductivity and allows for effective control of the electrode's thickness.

[0021] In one optional embodiment of this utility model, such as Figure 1 As shown, the heating electrode 34 is formed on the inner edge of the two opposite long sides of the glass substrate 3. By placing the heating electrode 34 on the inner edge of the two opposite long sides of the glass substrate 3, the length of the heating electrode 34 can be increased, thereby improving the heating efficiency.

[0022] In one optional embodiment of this utility model, such as Figure 1As shown, a cover plate 5 is also provided on the outer side of the front surface of the glass substrate 3. In this embodiment, by further adding the cover plate 5, the touch circuit pattern 30 on the front surface of the glass substrate 3 can be effectively protected.

[0023] In one optional embodiment of this utility model, such as Figure 1 As shown, the ITO film 32 is formed on the entire back surface of the glass substrate 3. In this embodiment, by forming the ITO film 32 on the entire back surface of the glass substrate 3, light transmission is achieved while also increasing the heating area after power is applied, which better and more uniformly heats the liquid crystal molecules in all parts of the liquid crystal display module 1, thus effectively ensuring the image quality in all areas.

[0024] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many variations under the guidance of the present invention without departing from the inventive spirit and scope of protection of the claims. These variations are all within the scope of protection of the present invention.

Claims

1. A self-heating touch display screen, comprising: LCD display module; as well as A glass substrate is attached to the back of the liquid crystal display module. The front of the glass substrate is formed with touch circuit patterns and the back is formed with an ITO film. The feature is that a heating electrode is formed on each of the opposite sides of the back of the glass substrate near the edge, extending parallel to the edge and electrically connected to the ITO film. The two heating electrodes are connected to a flexible circuit board, and the other end of the flexible circuit board extends out of the glass substrate to connect to a power source.

2. The self-heating touch display screen as described in claim 1, characterized in that, The flexible circuit board is bonded to the heating electrode via an anisotropic conductive adhesive film.

3. The self-heating touch display screen as described in claim 1 or 2, characterized in that, The flexible circuit board completely covers the two heating electrodes.

4. The self-heating touch display screen as described in claim 1, characterized in that, The heating electrode is formed by printing with silver paste.

5. The self-heating touch display screen as described in claim 1, characterized in that, The heating electrodes are formed on the inner edges of the two opposite long sides of the glass substrate.

6. The self-heating touch display screen as described in claim 1, characterized in that, A cover plate is also provided on the outer side of the front of the glass substrate.

7. The self-heating touch display screen as described in claim 1, characterized in that, The back side of the glass substrate is formed with the ITO film.

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