Color touch screen with sensing structure

Abstract

The utility model relates to a color touch screen with a sensing structure, which belongs to the technical field of touch screens and comprises a casing, a backlight module is fixed on the front side of the inner wall of the casing, a liquid crystal display module is fixed on the front side of the backlight module, a touch sensing mechanism is arranged on the front side of the liquid crystal display module, and the touch sensing mechanism is arranged on the inner wall of the casing. The dustproof mechanism is arranged in the front side of the shell; and the dustproof mechanism comprises a left group of mounting grooves and a right group of mounting grooves which are formed in the front side of the shell. According to the color touch screen with the sensing structure, the dustproof mechanism is arranged in the front side of the shell, fingerprints and dust on the protective layer can be erased by the wiping plate, meanwhile, the wiping plate only needs to slide from one side to the other side, the wiping plate does not need to be moved back, the operation steps are saved, and the operation efficiency is improved. The touch sensing mechanism is arranged on the front side of the liquid crystal display screen, the sensing layer and touch screen glass can be protected through the protective layer, and the sensing layer and the touch screen glass are prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the technical field of touch screens, in particular to a color touch screen with a sensing structure. Background Art

[0002] A touch screen, also known as a "touch screen" or "touch panel", is an inductive liquid crystal display device that can receive input signals such as contacts. There are four mature touch screen technologies, namely infrared, five-wire resistive, surface acoustic wave, and capacitive. The principle is that when the graphic button on the screen is touched, the tactile feedback system on the screen can drive various connection devices according to a pre-programmed program. It can be used to replace the mechanical button panel and create vivid audio and video effects through the LCD display. Touch screens are mainly used in public information inquiries, leadership offices, industrial control, military command, electronic games, ordering songs and dishes, multimedia teaching, real estate pre-sales, etc. It is a simple, convenient and natural way of human-computer interaction.

[0003] For example, a capacitive touch screen is disclosed in a Chinese patent (CN202948432U), including a screen body, characterized in that: the screen body is made of I TOFI LM material; a display is attached to one side of the screen body through an adhesive layer, and further: the adhesive layer is OCA optical glue, silica gel or acrylic glue, and silver paste circuits and ITO wiring circuits are printed on the screen body. In the utility model, a layer of I TOFI LM replaces the original multi-layer structure, and an LCD or TFT is attached to the ITOFI LM screen body through OCA optical glue, etc. At the same time, silver paste circuits and I TO circuits can be printed on it. Such a design greatly reduces the cost of the touch screen, and the overall thickness is thinner than other structures, which greatly expands the design space of the whole machine. In addition, the utility model has good use effect and ensures service life.

[0004] The above scheme also has the following technical deficiencies: the above scheme is not convenient for wiping the screen; since the screen is a touch screen, fingerprints are likely to remain on the screen when the user uses it, and the remaining fingerprints will affect the viewing experience of the screen; at the same time, dust is likely to adhere to the screen, so it is necessary to wipe off the remaining fingerprints and dust on the screen; based on this, a color touch screen with a sensing structure is proposed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a color touch screen with a sensing structure, which has the advantages of conveniently erasing fingerprints and dust remaining on the protective layer, thereby solving the problem that fingerprints and dust remaining on the protective layer are difficult to erase.

[0006] To achieve the above object, the utility model provides the following technical solution: a color touch screen with a sensing structure, comprising a housing, a backlight module is fixed to the front side of the inner wall of the housing, a liquid crystal display module is fixed to the front side of the backlight module, a touch sensing mechanism is provided on the front side of the liquid crystal display module, and a dustproof mechanism is provided inside the front side of the housing;

[0007] The dustproof mechanism includes two left and right groups of mounting grooves opened inside the front side of the shell, a fixing rod is fixed between the opposite sides of the left and right mounting grooves, the outer surfaces of the two fixing rods are slidably connected with sliders, a wiping plate is fixed to the rear side of the slider, a first elastic block is fixed to the left end of the front side of the slider, a second elastic block is fixed to the right end of the front side of the slider, and a third elastic block is fixed to the front side of the mounting groove.

[0008] Furthermore, the touch sensing mechanism includes a polarizer fixed on the front side of the liquid crystal display module, a first insulating layer fixed on the front side of the polarizer, a metal grid fixed on the front side of the first insulating layer, a second insulating layer fixed on the front side of the metal grid, a shading layer fixed on the front side of the second insulating layer, a sensing layer fixed on the front side of the shading layer, a touch screen glass fixed on the front side of the sensing layer, and a protective layer fixed on the front side of the touch screen glass.

[0009] Furthermore, two sliding grooves are provided inside the sliding block, and the two fixing rods can slide in the corresponding sliding grooves.

[0010] Furthermore, the sliding block and the wiping plate can be completely moved into the installation groove, and the third elastic block can limit the first elastic block and the second elastic block that are completely moved into the installation groove.

[0011] Furthermore, the protective layer is a transparent substrate, and the front side of the protective layer abuts against the rear side of the wiping plate.

[0012] Furthermore, the light shielding layer is a black ink layer, and the metal grid is a touch electrode.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The color touch screen with a sensing structure is provided with a dustproof mechanism inside the front side of the shell, and fingerprints and dust on the protective layer can be wiped off by using a wiping plate. At the same time, it is only necessary to slide the wiping plate from one side to the other side without moving the wiping plate back, thus saving operation steps. The touch sensing mechanism is provided on the front side of the liquid crystal display screen, so the protective layer can be used to protect the sensing layer and the touch screen glass, thus preventing the sensing layer and the touch screen glass from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0017] Figure 3 It is a three-dimensional schematic diagram of the slider connection structure of the utility model;

[0018] Figure 4 It is a schematic diagram of a partial structure of the touch sensing mechanism of the utility model.

[0019] In the figure: 1 shell, 2 backlight module, 3 liquid crystal display module, 400 touch sensing mechanism, 401 polarizer, 402 first insulating layer, 403 metal grid, 404 second insulating layer, 405 light shielding layer, 406 sensing layer, 407 touch screen glass, 408 protective layer, 500 dustproof mechanism, 501 installation slot, 502 fixing rod, 503 slider, 504 wiping plate, 505 first elastic block, 506 second elastic block, 507 third elastic block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 In this embodiment, a color touch screen with a sensing structure includes a shell 1, a backlight module 2 is fixed to the front side of the inner wall of the shell 1, a liquid crystal display module 3 is fixed to the front side of the backlight module 2, a touch sensing mechanism 400 is provided on the front side of the liquid crystal display module 3, and a dustproof mechanism 500 is inside the front side of the shell 1.

[0022] The touch sensing mechanism 400 in this embodiment is used to enable the touch screen to perform touch and sensing, while preventing the internal structure from being damaged. The dustproof mechanism 500 is used to wipe fingerprints and dust on the touch sensing mechanism 400.

[0023] It should be noted that the backlight module 2 is used to supply light sources with sufficient brightness and uniform distribution, and the liquid crystal display module 3 is used to process the light according to pixels to display images.

[0024] See also Figure 1-3In order to facilitate the wiping of fingerprints and dust on the touch sensing mechanism 400, the dustproof mechanism 500 in this embodiment includes two groups of left and right mounting grooves 501 opened inside the front side of the shell 1, and a fixing rod 502 is fixed between the opposite sides of the left and right mounting grooves 501. The outer surfaces of the two fixing rods 502 are slidably connected with sliders 503. Two sliding grooves are opened inside the slider 503. The two fixing rods 502 can slide in the corresponding sliding grooves. A wiping plate 504 is fixed to the rear side of the slider 503. The slider 503 and the wiping plate 504 can be completely moved into the mounting groove 501. A first elastic block 505 is fixed to the left end of the front side of the slider 503, and a second elastic block 506 is fixed to the right end of the front side of the slider 503. A third elastic block 507 is fixed to the front side of the mounting groove 501. The third elastic block 507 can limit the first elastic block 505 and the second elastic block 506 that are completely moved into the mounting groove 501.

[0025] The dustproof mechanism 500 in this embodiment can wipe fingerprints and dust on the touch sensing mechanism 400 through the wiping plate 504, the slider 503 is used to facilitate the sliding of the wiping plate 504, the mounting groove 501 is used to store the slider 503, and the third elastic block 507 cooperates with the first elastic block 505 and the second elastic block 506 to fix the slider 503.

[0026] It should be noted that the fixing rod 502 is used to limit the support of the slider 503. When the slider 503 moves to the left mounting groove 501, the third elastic block 507 fixes the slider 503 by limiting the second elastic block 506. When the slider 503 moves to the right mounting groove 501, the third elastic block 507 fixes the slider 503 by limiting the first elastic block 505.

[0027] See also Figure 1 and Figure 4 In order to enhance the drop resistance of the touch sensing mechanism 400, the touch sensing mechanism 400 in this embodiment includes a polarizer 401 fixed on the front side of the liquid crystal display module 3, a first insulating layer 402 fixed on the front side of the polarizer 401, a metal grid 403 fixed on the front side of the first insulating layer 402, a second insulating layer 404 fixed on the front side of the metal grid 403, a light shielding layer 405 fixed on the front side of the second insulating layer 404, a sensing layer 406 fixed on the front side of the light shielding layer 405, a touch screen glass 407 fixed on the front side of the sensing layer 406, and a protective layer 408 fixed on the front side of the touch screen glass 407, wherein the protective layer 408 is a transparent substrate, the front side of the protective layer 408 is in contact with the rear side of the wiping plate 504, the light shielding layer 405 is a black ink layer, and the metal grid 403 is a touch electrode.

[0028] The touch sensing mechanism 400 in this embodiment can filter out stray light and 99% of glare through the polarizer 401. The sensing layer 406 is used to sense touch, the touch screen glass 407 is used to facilitate user touch, and the protective layer 408 is used to protect the touch screen glass 407 and the sensing layer 406.

[0029] It should be noted that the first insulating layer 402 and the second insulating layer 404 are used to insulate the metal grid 403 , and the light shielding layer 405 is used to cover the light leakage of the touch screen.

[0030] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0031] The working principle of the above embodiment is:

[0032] When it is necessary to wipe the fingerprints and dust on the protective layer 408, the slider 503 is moved out of the installation groove 501, and the second elastic block 506 and the third elastic block 507 on the slider 503 are squeezed. At the same time, the second elastic block 506 follows the slider 503 to slide out of the installation groove 501, and the slider 503 drives the wiping plate 504 to wipe the protective layer 408. When the slider 503 moves to the installation groove 501 on the other side, the first elastic block 505 and the third elastic block 507 are squeezed, and the third elastic block 507 and the first elastic block 50 5 are deformed, the first elastic block 505 moves to the left side of the third elastic block 507, and the slider 503 is fixed. When the touch screen is used normally, the backlight module 2 provides a light source with uniform brightness and distribution, the liquid crystal display module 3 processes the light according to pixels to display images, the polarizer 401 filters stray light, the shading layer 405 is used to block light leakage, the user touches the protective layer 408 and the touch screen glass 407, the sensing layer 406 is used to sense the touch, and the metal grid 403 is used to process the sensing.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A color touch screen with a sensing structure, comprising a housing (1), characterized in that: A backlight module (2) is fixed on the front side of the inner wall of the housing (1), a liquid crystal display module (3) is fixed on the front side of the backlight module (2), a touch sensing mechanism (400) is provided on the front side of the liquid crystal display module (3), and a dustproof mechanism (500) is provided inside the front side of the housing (1); The dustproof mechanism (500) comprises two left and right groups of mounting grooves (501) provided inside the front side of the shell (1); a fixing rod (502) is fixed between the opposite sides of the left and right mounting grooves (501); a slider (503) is slidably connected to the outer surfaces of the two fixing rods (502); a wiping plate (504) is fixed to the rear side of the slider (503); a first elastic block (505) is fixed to the left end of the front side of the slider (503); a second elastic block (506) is fixed to the right end of the front side of the slider (503); and a third elastic block (507) is fixed to the front side of the mounting groove (501).

2. The color touch screen with a sensing structure according to claim 1, characterized in that: The touch sensing mechanism (400) comprises a polarizing film (401) fixed on the front side of the liquid crystal display module (3), a first insulating layer (402) fixed on the front side of the polarizing film (401), a metal grid (403) fixed on the front side of the first insulating layer (402), a second insulating layer (404) fixed on the front side of the metal grid (403), a light shielding layer (405) fixed on the front side of the second insulating layer (404), a sensing layer (406) fixed on the front side of the light shielding layer (405), a touch screen glass (407) fixed on the front side of the sensing layer (406), and a protective layer (408) fixed on the front side of the touch screen glass (407).

3. The color touch screen with a sensing structure according to claim 1, characterized in that: Two sliding grooves are provided inside the sliding block (503), and the two fixing rods (502) can slide in the corresponding sliding grooves.

4. The color touch screen with a sensing structure according to claim 1, characterized in that: The sliding block (503) and the wiping plate (504) can be completely moved into the installation groove (501), and the third elastic block (507) can limit the first elastic block (505) and the second elastic block (506) that are completely moved into the installation groove (501).

5. The color touch screen with a sensing structure according to claim 2, characterized in that: The protective layer (408) is a transparent substrate, and the front side of the protective layer (408) abuts against the rear side of the wiping plate (504).

6. The color touch screen with a sensing structure according to claim 2, characterized in that: The light shielding layer (405) is a black ink layer, and the metal grid (403) is a touch electrode.

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