Capacitive touch screen internally integrated with LED atmosphere

Abstract

The utility model discloses a capacitive touch screen internally integrated with LED atmosphere, which comprises a first transparent conductive substrate, a Tx layer, a first optical adhesive layer, a second transparent conductive substrate, an Rx layer, a second optical adhesive layer and a protective cover plate which are sequentially stacked together, LED layers are arranged on two sides of the Rx layer, each LED layer comprises a plurality of LED chips, and the LED chips are arranged on the Tx layer. And each LED chip is provided with an independent conducting circuit. According to the capacitive touch screen internally integrated with the LED atmosphere, the LED layers are arranged on the two sides of the Rx layer, each LED layer comprises a plurality of LED chips, each LED chip is provided with an independent conduction circuit, the LED chips can be turned on / off through an external control panel, and the atmosphere effects of progressive brightening / darkening, flickering, breathing, rhythm, horse race and the like can be achieved; therefore, the capacitive touch screen can bring more colorful and personalized use experience to the user.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitive touch screens, and specifically relates to a capacitive touch screen with an internally integrated LED atmosphere. Background Art

[0002] When a capacitive touch screen is combined with a display screen (such as a mobile phone display screen, a computer display screen, a vehicle-mounted display screen, a TV display screen, etc.), except for the brightness of the display screen, the capacitive touch screen itself will not have brightness, that is, after the display screen is turned off, the entire screen will be a black screen or a black and gray screen. From the feedback of the industrial application side, the existing capacitive touch display screens have problems such as being not eye-catching enough, not cool enough, having no sense of atmosphere, and no sense of personalization, which limit the use of capacitive touch display screens in a larger field. Content of the Utility Model

[0003] The purpose of the utility model is to improve and innovate the disadvantages and problems in the background art, and provide a capacitive touch screen with an internally integrated LED atmosphere.

[0004] A capacitive touch screen with an internally integrated LED atmosphere includes a first transparent conductive substrate, a Tx layer, a first optical adhesive layer, a second transparent conductive substrate, an Rx layer, a second optical adhesive layer, and a protection cover plate stacked together in sequence. LED layers are arranged on both sides of the Rx layer. The LED layer includes a plurality of LED chips, and each LED chip has an independent conduction line.

[0005] Further, the positive electrode of each LED chip is connected to a flexible circuit board through an independent positive electrode conductive channel, and the negative electrodes of the LED chips are connected to the flexible circuit board after being interconnected through a negative electrode conductive channel.

[0006] Further, an insulating wire is arranged between the positive electrode conductive channel and the negative electrode conductive channel, and an insulating wire is also arranged between adjacent positive electrode conductive channels.

[0007] Further, at least the corner of the insulating wire between the positive electrode conductive channel and the negative electrode conductive channel is set as an arc portion.

[0008] Further, an insulating groove is arranged on both sides of the Rx layer, and the LED chips are arranged outside the insulating groove.

[0009] Further, the end of the negative electrode conductive channel is evenly divided into two paths and then connected to the flexible circuit board.

[0010] Further, the width of the end of the negative electrode conductive channel close to the flexible circuit board is twice the width of the end of the positive electrode conductive channel close to the flexible circuit board.

[0011] A further solution is that the thickness of the second optical adhesive layer is at least twice the height of the LED chip.

[0012] A further solution is that black ink is provided on the lower surface of the protection cover plate twice, and the black ink is used to cover the insulating wire and the flexible circuit board outside the LED chip.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model provides a capacitive touch screen with an internally integrated LED atmosphere. LED layers are provided on both sides of the Rx layer. The LED layer includes a plurality of LED chips, and each of the LED chips has an independent conduction line. Through an external control board, on / off and progressive brightening / dimming, flashing, breathing, rhythm, and marquee and other atmosphere effects of the LED chips can be realized, so that the capacitive touch screen can bring a more colorful and personalized use experience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic structural diagram of a capacitive touch screen with an internally integrated LED atmosphere provided by an embodiment of the present utility model;

[0016] Figure 2 It is a schematic structural diagram of the Rx layer and the LED layer provided by an embodiment of the present utility model;

[0017] Figure 3 For an embodiment of the present utility model Figure 2 is a partial enlarged structural diagram at A in the embodiment;

[0018] Figure 4 For an embodiment of the present utility model Figure 2 is a partial enlarged structural diagram at B in the embodiment.

[0019] Reference numerals: first transparent conductive substrate 1, Tx layer 2, first optical adhesive layer 3, second transparent conductive substrate 4, LED layer 5, LED chip 501, insulating wire 502, arc portion 5021, negative conductive channel 503, positive conductive channel 504, flexible circuit board 505, Rx layer 6, first insulating channel 601, first conductive channel 602, insulating groove 603, second optical adhesive layer 7, protection cover plate 8. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the objectives, features, and advantages of the present utility model more apparent and understandable, the following provides a detailed description of the specific implementation manners of the present utility model in conjunction with the accompanying drawings.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific implementation manners and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] Please refer to Figures 1 - 4 , the present utility model provides a capacitive touch screen with an internally integrated LED atmosphere, which includes a first transparent conductive substrate 1, a Tx layer 2, a first optical adhesive layer 3, a second transparent conductive substrate 4, an Rx layer 6, a second optical adhesive layer 7, and a protective cover plate 8 that are stacked together in sequence from bottom to top. LED layers 5 are arranged on both sides of the Rx layer 6, and the LED layer 5 includes a plurality of LED chips 501, and each LED chip 501 has an independent conduction line. Among them, the Tx layer 2 is a transmission drive signal layer, and the Rx layer 6 is used to receive drive signals and detect capacitance changes.

[0024] It should be noted that the Tx layer 2 is formed by etching second insulating channels spaced apart on the first transparent conductive substrate 1 through laser etching or printing etching. The first transparent conductive substrate 1 itself is conductive, and after etching, it becomes the second insulating channels. The adjacent second insulating channels are not etched, which are the second conductive channels. The second conductive channels and the second insulating channels are spaced apart and interlaced on the first transparent conductive substrate 1, thereby forming the Tx layer 2. Each second conductive channel and second insulating channel extends along the length direction of the capacitive touch screen. The Rx layer 6 is formed by etching corresponding first insulating channels 601 on the second transparent conductive substrate 4 through laser etching or printing etching. The second transparent conductive substrate 4 itself is conductive, and after etching, it becomes the first insulating channels 601. The adjacent first insulating channels 601 are not etched, which are the first conductive channels 602. The first conductive channels 602 and the first insulating channels 601 are spaced apart and interlaced on the second transparent conductive substrate 4, thereby forming the Rx layer 6. Different from the second conductive channels and the second insulating channels, the first conductive channels 602 and the first insulating channels 601 both extend along the width direction of the capacitive touch screen. The above-mentioned insulating channels generally adopt a diamond structure. Since the conductive channels and the insulating channels are interlaced, the conductive channels also have a diamond structure. After etching to obtain the Tx layer 2 and the Rx layer 6, a first optical adhesive layer 3 is provided between the first transparent conductive substrate 1 and the second transparent conductive substrate 4, so that the first transparent conductive substrate 1 and the second transparent conductive substrate 4 are bonded together through the optical adhesive.

[0025] As Figure 2 described, in this embodiment, the LED layer 5 is provided on both sides of the Rx layer 6 along the length direction of the capacitive touch screen (such as Figure 2 the X-axis direction in

[0026] ), and an insulating groove 603 is provided on both sides of the Rx layer 6 along the length direction of the capacitive touch screen. The insulating groove 603 is used to separate the LED layer 5 from the first conductive channel 602. The positive electrode of each LED chip 501 is connected to the flexible circuit board 505 through an independent positive electrode conductive channel 504, and the negative electrodes of the LED chips 501 are connected to the flexible circuit board 505 after being interconnected through the negative electrode conductive channel 503. The flexible circuit board 505 is connected to an external control board. The flexible circuit board 505 is provided with switches for independently controlling each LED chip 501. The external control board controls the flexible circuit board 505, so as to realize the on / off and progressive brightening / dimming, flashing, breathing, rhythm, running horse and other atmosphere effects of the LED chips 501, enabling the capacitive touch screen to bring a more colorful and personalized user experience to users.

[0026] The LED layer 5 further includes a plurality of insulating wires 502 for separating the positive conductive channels 504 from the negative conductive channels 503, and insulating wires 502 are also provided between adjacent positive conductive channels 504.

[0027] Further, as Figure 4 shown, the end of the negative conductive channel 503 is evenly divided into at least two paths and then connected to the flexible circuit board 505. That is, at least one insulating wire 502 is provided inside the end of the negative conductive channel 503 to divide one path of the negative conductive channel 503 into two paths of negative conductive channels 503 or multiple paths of negative conductive channels 503. After one path of the negative conductive channel 503 is damaged, other paths of the negative conductive channels 503 can be used for power supply.

[0028] Since the negative electrodes of the respective LED chips 501 are interconnected through the negative conductive channels 503 and then connected to the flexible circuit board 505; therefore, in the present application, the corner of the insulating wire 502 between the positive conductive channel 504 and the negative conductive channel 503 is set as an arc portion 5021, which can avoid current consumption compared with a right-angle design. In addition, the width of the end of the negative conductive channel 503 close to the flexible circuit board 505 is set to be twice the width of the end of the positive conductive channel 504 close to the flexible circuit board 505 to reduce the impedance of the negative conductive channel 503.

[0029] After the LED layers 5 are provided on both sides of the Rx layer 6, a second optical adhesive layer 7 is provided between the second transparent conductive substrate 4 and the protective cover plate 8, so that the second transparent conductive substrate 4 and the protective cover plate 8 are adhered together through the optical adhesive. The thickness of the second optical adhesive layer 7 is at least twice the height of the LED chip 501. By controlling the elastic modulus of the optical adhesive, it is possible to wrap the LED chip 501 while adhering the second transparent conductive substrate 4 with an LED atmosphere at the edge to the protective cover plate 8.

[0030] Preferably, black ink is provided on the lower surface of the protective cover plate 8 twice, and the black ink is used to cover the insulating wires 502 and the flexible circuit board 505 outside the LED chip 501, but cannot cover the LED chip 501.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the utility model.

[0032] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0033] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The mention of "embodiment" in this article means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of this application. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art can explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application. Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A capacitive touch screen with an internally integrated LED atmosphere, comprising a first transparent conductive substrate (1), a Tx layer (2), a first optical adhesive layer (3), a second transparent conductive substrate (4), an Rx layer (6), a second optical adhesive layer (7), and a protective cover plate (8) stacked together in sequence, characterized in that: The LED layers (5) are arranged on both sides of the Rx layer (6). The LED layer (5) includes a plurality of LED chips (501), and each LED chip (501) has an independent conduction line.

2. An internal integrated LED ambient capacitive touch screen according to claim 1, characterized in that: The positive electrode of each LED chip (501) is connected to the flexible circuit board (505) through an independent positive electrode conduction channel (504). The negative electrodes of the LED chips (501) are connected to each other through a negative electrode conduction channel (503) and then connected to the flexible circuit board (505).

3. An in - built LED atmosphere capacitive touch screen according to claim 2, characterized in that: An insulating wire (502) is arranged between the positive electrode conduction channel (504) and the negative electrode conduction channel (503), and an insulating wire (502) is also arranged between adjacent positive electrode conduction channels (504).

4. An internal integrated LED atmosphere capacitive touch screen according to claim 3, characterized in that: At least the corner of the insulating wire (502) between the positive electrode conduction channel (504) and the negative electrode conduction channel (503) is set as an arc part (5021).

5. An internal integrated LED atmosphere capacitive touch screen according to claim 2, characterized in that: An insulating groove (603) is arranged on both sides of the Rx layer (6), and the LED chip (501) is arranged outside the insulating groove (603).

6. An internal integrated LED atmosphere capacitive touch screen according to claim 2, characterized in that: The end of the negative electrode conduction channel (503) is divided into two paths on average and then connected to the flexible circuit board (505).

7. An internal integrated LED atmosphere capacitive touch screen according to claim 2, characterized in that: The width of the end of the negative electrode conduction channel (503) close to the flexible circuit board (505) is twice the width of the end of the positive electrode conduction channel (504) close to the flexible circuit board (505).

8. An internal integrated LED atmosphere capacitive touch screen according to claim 1, characterized in that: The thickness of the second optical adhesive layer (7) is at least twice the height of the LED chip (501).

9. An internal integrated LED atmosphere capacitive touch screen according to claim 1, characterized in that: Black ink is provided on the lower surface of the protection cover plate (8) twice, and the black ink is used to cover the insulating wire (502) outside the LED chip (501) and the flexible circuit board (505).

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