Display panels and mobile terminals

Abstract

The present invention provides a display panel and a mobile terminal. The display panel includes a display function segment and a binding segment arranged relative to each other, and a bent segment connecting the display function segment and the binding segment. The binding segment includes a driver chip. The display panel also includes an absorbing insulating tape stacked with the binding segment. The absorbing insulating tape includes an insulating tape body and an absorbing coating layer disposed on the insulating tape body. The orthographic projection of the absorbing insulating tape on the binding segment covers the orthographic projection of the driver chip on the binding segment. Because the absorbing coating layer is formed on the insulating tape body through a coating process, the thickness of the absorbing coating layer is controllable and can be made thinner as required. This means that the thickness is thinner than that of absorbing film materials used in the prior art that achieve the same absorbing function. This reduces the overall thickness of the display panel, thereby facilitating assembly of the entire device.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a mobile terminal. Background Art

[0002] As mobile phone functions develop rapidly and become more advanced, the related circuits and chips of the display panels used are becoming more and more complex, and at the same time, they also require higher electrical stability, which makes the impact of electromagnetic radiation on mobile phones increasingly greater.

[0003] To prevent electromagnetic radiation interference from affecting display quality, absorbing materials are often applied to specific locations on the display panel, such as the chip area, to shield against electromagnetic radiation interference. Currently, this shielding effect is typically achieved by attaching a finished absorbing film to the specific area with an adhesive layer. However, this method still has some drawbacks: the finished absorbing film is typically thick, increasing the overall thickness of the display panel and hindering assembly. Summary of the Invention

[0004] The present invention provides a display panel and a mobile terminal. The display panel has a relatively thin thickness, which is beneficial to the assembly of the entire device.

[0005] To solve the above problems, in a first aspect, the present invention provides a display panel, comprising a display function segment and a binding segment arranged relatively to each other, and a bending segment connecting the display function segment and the binding segment, wherein the binding segment includes a driver chip, wherein the display panel also includes an absorbing insulating tape stacked with the binding segment, the absorbing insulating tape including an insulating tape body and an absorbing coating arranged on the insulating tape body, the orthographic projection of the absorbing insulating tape on the binding segment covers the orthographic projection of the driver chip on the binding segment.

[0006] In a display panel provided by the present invention, the absorbing insulating tape includes a first absorbing insulating tape provided between the binding section and the display function section, and / or a second absorbing insulating tape on a side of the binding section away from the display function section.

[0007] In a display panel provided by the present invention, the insulating tape body includes a first insulating tape body provided on a side of the binding section close to the display function section, and the absorbing coating layer includes a first absorbing coating layer provided on a side of the first insulating tape body close to the binding section;

[0008] The first microwave-absorbing insulating tape includes the first insulating tape body and the first microwave-absorbing coating layer.

[0009] In a display panel provided by the present invention, the first insulating tape body includes a first adhesive layer provided on a side of the binding section close to the display function section, a first insulating layer provided on the first adhesive layer close to the binding section, and a second adhesive layer provided on the first insulating layer close to the binding section;

[0010] The first absorbing coating is arranged on a side of the second adhesive layer away from the first insulating layer.

[0011] In a display panel provided by the present invention, the first absorbing insulating tape further includes a third adhesive layer, and the third adhesive layer is disposed between the first absorbing coating layer and the binding section.

[0012] In a display panel provided by the present invention, the thickness of the second adhesive layer is smaller than the thickness of the first adhesive layer, and the thickness of the second adhesive layer is smaller than the thickness of the third adhesive layer.

[0013] In a display panel provided by the present invention, the insulating tape body includes a second insulating tape body provided on a side of the binding section away from the display function section, and the absorbing coating layer includes a second absorbing coating layer provided on a side of the second insulating tape body away from the binding section;

[0014] The first absorbing insulating tape includes the second insulating tape body and a second absorbing coating layer.

[0015] In a display panel provided by the present invention, the second insulating tape body includes a fourth adhesive layer provided on a side of the binding section away from the display function section, a second insulating layer provided on the fourth adhesive layer away from the binding section, and a fifth adhesive layer provided on the second insulating layer away from the binding section;

[0016] The second absorbing coating is disposed on a side of the fifth adhesive layer away from the second insulating layer.

[0017] In a display panel provided by the present invention, the wave-absorbing coating layer includes a coating body and wave-absorbing particles dispersed in the coating body.

[0018] In a second aspect, the present invention further provides a mobile terminal, comprising the aforementioned display panel and a terminal body, wherein the terminal body and the display panel are integrated into one body.

[0019] Beneficial Effects: The present invention provides a display panel and a mobile terminal, wherein the display panel includes an absorbing insulating tape, the absorbing insulating tape comprising: an insulating tape body; and an absorbing coating layer, wherein the absorbing coating layer is applied to the insulating tape body by coating. Because the absorbing coating layer is applied to the insulating tape body by coating, the thickness of the absorbing coating layer is controllable and can be made thinner as required. This means that the thickness of the absorbing coating layer is thinner than conventional absorbing film materials achieving the same absorbing function. This reduces the overall thickness of the display panel, thereby facilitating assembly of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the cross-sectional structure of a wave-absorbing structure layer provided in the prior art of the present invention;

[0022] Figure 2 This is a schematic diagram of the decomposed structure of a wave-absorbing structure layer provided in the prior art of the present invention;

[0023] Figure 3 This is a schematic diagram of a first application stacking structure of an absorbing structure layer provided in the prior art of the present invention;

[0024] Figure 4 This is a schematic diagram of a second application stacking structure of an absorbing structure layer provided in the prior art of the present invention;

[0025] Figure 5 is a schematic diagram of a cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0026] Figure 6 1 is a schematic cross-sectional structural diagram of a wave-absorbing insulating tape in a display panel provided by an embodiment of the present invention;

[0027] Figure 7 1 is a schematic cross-sectional structural diagram of another type of wave-absorbing insulating tape in a display panel provided by an embodiment of the present invention;

[0028] Figure 8 This is a schematic cross-sectional structural diagram of another type of absorbing insulating tape in a display panel provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to make and use the invention. In the following description, details are listed for the purpose of explanation. It should be understood that one of ordinary skill in the art will recognize that the invention can be practiced without these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

[0032] In existing display panels, due to the need for electrical stability, it is usually necessary to cover specific areas, such as the driver chip area, with an absorbing film material to shield the interference of electromagnetic radiation and avoid affecting the display effect. Specifically, the commonly used absorbing structure layer 100 includes a first adhesive layer 110, a second adhesive layer 120, and an absorbing film material 130. The cross-sectional structure of the absorbing structure layer 100 is shown in FIG. Figure 1 , see the breakdown structure Figure 2 .

[0033] The second adhesive layer 120 is provided with a hollow area, the absorbing film material 130 is filled in the hollow area, and then adhered to the target area through the first adhesive layer 110 to achieve electromagnetic wave shielding.

[0034] Specifically, in one application scenario, see Figure 3 A conductive cloth 200 is also adhered to one side of the absorbing structure layer 100, and then adhered to the surface of the driver chip of the display panel to shield the electromagnetic wave signal. At the same time, the conductive cloth 200 conducts the static charge on the display panel to prevent the display panel from being damaged by static electricity;

[0035] In another application scenario, see Figure 4 A support layer 300 and a foam adhesive layer 400 are adhered to one side of the absorbing structure layer 100. This composite structure is generally used to adhere and fix the chip-on-film in the display panel to the back of the display panel. Specifically, one end of the chip-on-film is fixed to the surface of the panel body along the light-emitting direction, and is bent so that the other end is adhered to the surface of the panel body away from the light-emitting direction through the composite structure including the absorbing structure layer.

[0036] In the specific application of the above-mentioned absorbing structure layer 100 , since the absorbing film material 130 in the absorbing structure layer 100 is relatively thick, the overall thickness of the display panel increases, which is not conducive to the assembly of the entire device.

[0037] Based on the above problems, an embodiment of the present invention provides a display panel, which is combined with Figure 5 The cross-sectional structure diagram of the display panel provided and Figure 6 The cross-sectional structure diagram of the absorbing insulating tape in the display panel is described in detail.

[0038] Specifically, the display panel includes a display functional segment 610 and a binding segment 620 that are arranged opposite to each other, and a bent segment 630 connecting the display functional segment 610 and the binding segment 620. The binding segment 620 includes a driver chip (not shown in the figure) for driving the display. One end of the bent segment 630 is connected to the display functional segment 610, and the other end is bent toward a side away from the light emitting direction of the display functional segment 610, so that the binding segment 620 connected to the other end is arranged opposite to the side of the display functional segment 610 away from the light emitting direction of the display functional segment 610. The display panel also includes an absorbing insulating tape 500 stacked with the binding segment layer 620. The absorbing insulating tape 500 covers the orthographic projection of the driver chip on the binding segment 620, thereby shielding external electromagnetic waves and preventing them from interfering with the signal transmission of the driver chip and affecting the display.

[0039] The microwave-absorbing insulating tape 500 includes an insulating tape body 510 and a microwave-absorbing coating layer 520 disposed on the insulating tape body 510 , that is, the microwave-absorbing coating layer 520 is formed by coating.

[0040] The display panel provided in an embodiment of the present invention includes a specially structured absorbing insulating tape 500. The absorbing insulating tape 500 includes an insulating tape body 510 and an absorbing coating 520 disposed on the insulating tape body 510. Specifically, the absorbing coating 520 is formed on the insulating tape body 510 through a coating process, making the thickness of the absorbing coating 520 controllable and allowing it to be thinner as required. This allows the thickness of the absorbing coating 520 to be thinner than conventional absorbing film materials that achieve the same absorbing function. Specifically, while conventional absorbing film materials typically have a thickness of 30-40 microns, the absorbing coating 520 formed through the coating process can be less than 10 microns. This reduces the overall thickness of the display panel, facilitating assembly of the entire device.

[0041] In some embodiments, the absorbing insulating tape 500 includes a first absorbing insulating tape 500a arranged between the binding section 620 and the display function section 610, and / or a second absorbing insulating tape 500b arranged on the side of the binding section 620 away from the display function section 610, that is, the absorbing insulating tape is arranged on the front or back side of the driving chip to shield the interference of external electromagnetic waves on the driving chip signal. More preferably, the absorbing insulating tape is arranged on both the front and back sides of the driving chip to achieve better shielding effect, that is, the absorbing insulating tape 500 includes a first absorbing insulating tape 500a arranged on the side of the binding section 620 close to the display function section 610, and a second absorbing insulating tape 500b on the side of the binding section 620 away from the display function section 610.

[0042] In some embodiments, please combine Figure 5 as well as Figure 7 Provided Figure 5 The center circle shows a schematic diagram of the stacked structure of the first absorbing insulating tape 500a. The insulating tape body includes a first insulating tape body 510a disposed on the side of the binding section 620 close to the display function section 610. The absorbing coating layer includes a first absorbing coating layer 520a disposed on the side of the first insulating tape body 510a close to the binding section 620. The first absorbing insulating tape 500a includes the first insulating tape body 510a and the first absorbing coating layer 520a.

[0043] Furthermore, the first insulating tape body 510a includes a first adhesive layer 511 arranged on the side of the binding section 620 close to the display function section 610, a first insulating layer 512 arranged on the first adhesive layer 511 close to the binding section 620, and a second adhesive layer 513 arranged on the first insulating layer 512 close to the binding section 620; the first absorbing coating layer 520a is arranged on the side of the second adhesive layer 513 away from the first insulating layer 512.

[0044] Furthermore, the first absorbing insulating tape 500 a further includes a third adhesive layer 530 , and the third adhesive layer 530 is disposed between the first absorbing coating layer 520 a and the binding section 620 .

[0045] The first adhesive layer 511 is used to adhere and fix one side of the first absorbing insulating tape 500a to the display function segment 610. The third adhesive layer 530 is used to adhere and fix the other side of the first absorbing insulating tape 500a to the binding segment 620, so that the binding segment 620 is adhered and fixed to the side of the display function segment 610 that is away from the light emitting direction of the display function segment 610. The second adhesive layer 513 is used to bond the first insulating layer 512 to the first absorbing coating layer 520a. The first insulating layer 512 is used to achieve an insulating function.

[0046] In some embodiments, the thickness of the second adhesive layer 513 is less than that of the first adhesive layer 511, and the thickness of the second adhesive layer 513 is less than that of the third adhesive layer 530. That is, the second adhesive layer 513 located in the middle of the first absorbing insulating tape 500a is designed as an ultra-thin adhesive layer to further reduce the thickness, while the first adhesive layer 511 and the third adhesive layer 530 located on both sides of the first absorbing insulating tape 500a are designed as pressure-sensitive adhesive layers for bonding to a target interface in specific applications. Of course, when further thickness reduction is required, the first adhesive layer 511 and the third adhesive layer 530 may also be designed as ultra-thin adhesive layers, which is specifically set according to actual process requirements.

[0047] In some embodiments, please refer to Figure 5 The display panel further includes a support layer 800 and a foam adhesive layer 700 stacked between the first absorbing insulating tape 500a and the display functional segment 610. Specifically, the support layer 800 is further adhered to one side of the first absorbing insulating tape 500a, specifically one side of the first adhesive layer 511. A foam adhesive layer 700 is provided between the support layer 800 and the display functional segment 610. The support layer 800 is typically a polyethylene terephthalate (PET) film layer.

[0048] In some embodiments, please combine Figure 5 as well as Figure 8 Provided Figure 5 The center circle shows a schematic diagram of the stacked structure of the second absorbing insulating tape 500b. The insulating tape body includes a second insulating tape body 510b disposed on the side of the binding section 620 away from the display function section 610. The absorbing coating layer includes a second absorbing coating layer 520b disposed on the side of the second insulating tape body 510b away from the binding section 620. The first absorbing insulating tape 500b includes the second insulating tape body 510b and the second absorbing coating layer 520b.

[0049] Furthermore, the second insulating tape body 510b includes a fourth adhesive layer 514 arranged on the side of the binding section 620 away from the display function section 610, a second insulating layer 515 arranged on the fourth adhesive layer 514 away from the binding section 620, and a fifth adhesive layer 516 arranged on the second insulating layer 515 away from the binding section 620; the second absorbing coating layer 520b is arranged on the side of the fifth adhesive layer 516 away from the second insulating layer 515.

[0050] The fourth adhesive layer 514 is used to adhere and fix the second insulating tape body 510b to the side of the binding section 620 away from the display function section 610, and the fifth adhesive layer 516 is used to bond the second insulating layer 515 to the second absorbing coating layer 520b.

[0051] In some embodiments, please refer to Figure 5 A conductive cloth 900 is usually provided on the side of the second absorbing insulating tape 500b away from the binding section 620. Specifically, the conductive cloth 900 is provided on one side of the absorbing coating 520 to conduct static electricity on the display panel, thereby preventing electrostatic damage.

[0052] In some embodiments, the absorbing coating 520 generally includes a coating body and absorbing particles uniformly dispersed in the coating body. The coating body is generally an organic resin material, such as epoxy resin or acrylic resin, and the absorbing particles are materials that can absorb electromagnetic waves in a specific band and are selected according to actual process requirements.

[0053] It should be noted that, in the actual preparation of the display panel provided in the above embodiment, the absorbing coating layer 520 and the insulating tape body 510 are both formed by a coating process. In this way, the insulating tape body 510 and the absorbing coating layer 520 can be continuously formed by the coating process using the same coating equipment. That is, each sub-film layer in the insulating tape body 510 can be continuously formed by the same equipment, thereby saving preparation steps, thereby improving manufacturing efficiency and reducing manufacturing costs.

[0054] It should be noted that the above display panel embodiment only describes the above structure. It is understandable that, in addition to the above structure, the display panel of the embodiment of the present invention may also include any other necessary structures as needed, which are not limited here.

[0055] Another embodiment of the present invention provides a mobile terminal, including the display panel and terminal body described in the aforementioned embodiment, wherein the terminal body and the display panel are combined into one body, the terminal body may include a middle frame, frame glue, etc., and the mobile terminal may be a mobile display terminal such as a mobile phone or a tablet, which is not limited in this embodiment of the present invention.

[0056] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the detailed description of other embodiments above and will not be repeated here.

[0057] The above is a detailed introduction to a display panel and a mobile terminal provided in an embodiment of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A display panel, characterized in that: The display panel includes a display function segment and a binding segment that are relatively arranged, and a bending segment connecting the display function segment and the binding segment, wherein the binding segment includes a driver chip, wherein the display panel further includes: an absorbing insulating tape stacked on the binding section, the absorbing insulating tape comprising an insulating tape body and an absorbing coating disposed on the insulating tape body, wherein the orthographic projection of the absorbing insulating tape on the binding section covers the orthographic projection of the driver chip on the binding section; The absorbing insulating tape includes a first absorbing insulating tape and a second absorbing insulating tape, wherein the first absorbing insulating tape contacts a side of the binding segment close to the display function segment, and the second absorbing insulating tape contacts a side of the binding segment away from the display function segment; The display panel further includes a support layer and a foam adhesive layer disposed between the first absorbing insulating tape and the display functional segment. The foam adhesive layer is disposed between the support layer and the display functional segment, and the support layer is in contact with the first absorbing insulating tape.

2. The display panel according to claim 1, wherein: The insulating tape body includes a first insulating tape body provided on a side of the binding section close to the display function section, and the absorbing coating layer includes a first absorbing coating layer provided on a side of the first insulating tape body close to the binding section; The first microwave-absorbing insulating tape includes the first insulating tape body and the first microwave-absorbing coating layer.

3. The display panel according to claim 2, wherein: The first insulating tape body includes a first adhesive layer provided on a side of the binding section close to the display function section, a first insulating layer provided on the first adhesive layer close to the binding section, and a second adhesive layer provided on the first insulating layer close to the binding section; The first absorbing coating is arranged on a side of the second adhesive layer away from the first insulating layer.

4. The display panel according to claim 3, wherein: The first absorbing insulating tape further includes a third adhesive layer, and the third adhesive layer is arranged between the first absorbing coating layer and the binding section.

5. The display panel according to claim 4, wherein: The thickness of the second adhesive layer is smaller than that of the first adhesive layer, and the thickness of the second adhesive layer is smaller than that of the third adhesive layer.

6. The display panel according to claim 1, wherein: The insulating tape body includes a second insulating tape body provided on a side of the binding section away from the display function section, and the absorbing coating includes a second absorbing coating provided on a side of the second insulating tape body away from the binding section; The first absorbing insulating tape includes the second insulating tape body and a second absorbing coating layer.

7. The display panel according to claim 6, wherein: The second insulating tape body includes a fourth adhesive layer provided on a side of the binding section away from the display function section, a second insulating layer provided on the fourth adhesive layer away from the binding section, and a fifth adhesive layer provided on the second insulating layer away from the binding section; The second absorbing coating is disposed on a side of the fifth adhesive layer away from the second insulating layer.

8. The display panel according to any one of claims 1 to 7, characterized in that: The wave-absorbing coating comprises a coating body and wave-absorbing particles dispersed in the coating body.

9. A mobile terminal, characterized in that: The terminal comprises the display panel and the terminal body according to any one of claims 1 to 8, wherein the terminal body and the display panel are integrated into one body.

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