Touch-sensitive liquid crystal display device and display equipment

Abstract

The present application provides a touch-sensitive liquid crystal display device and a display apparatus, which relate to the field of touch-sensitive display technology and are used to improve the problem of excessively wide borders of display apparatuses in order to improve touch accuracy. The touch-sensitive liquid crystal display apparatus includes: a backlight module, including a backplane, a plastic frame located on the backplane, and an optical component located within the plastic frame; a liquid crystal display panel, disposed on the side of the plastic frame facing away from the backplane; and an electromagnetic film, including a first sub-electromagnetic film and a second sub-electromagnetic film, wherein the first sub-electromagnetic film is at least disposed on the backplane and located within the plastic frame; the second sub-electromagnetic film is at least disposed on the surface of the plastic frame; wherein, when projected along a first direction, the projection of the first sub-electromagnetic film contacts the projection portion of the second sub-electromagnetic film, and the first direction is the thickness direction of the liquid crystal display apparatus. The present application can take into account both the narrow-frame structure of the display apparatus and the precise touch effect.

Description

Technical Field

[0001] The present application relates to the field of touch display technology, and in particular to a touch-sensitive liquid crystal display device and a display apparatus. Background Art

[0002] Touch-sensitive LCD devices can be classified into resistive, capacitive, and electromagnetic types according to the type of touch screen. Among them, electromagnetic touch-sensitive LCD devices are widely used in production and life due to their high positioning accuracy and support for original handwriting.

[0003] Currently, electromagnetic touch-sensitive LCD displays primarily utilize electromagnetic induction (EMR) technology, which enables stylus pen-based drawing and writing on the display. However, EMR technology has limitations regarding edge accuracy, particularly for larger displays, where edge accuracy can be significantly reduced, and even lead to choppy handwriting. To minimize this issue, an electromagnetic film is typically positioned between the backplane and the reflective film. Furthermore, to improve edge accuracy, the film is extended along the backplane to the underside of the plastic frame, allowing the film's projection onto the display panel to completely cover the display panel, resulting in a better touch experience.

[0004] Based on this, the back panel and the plastic frame can only be set as a split structure so that the electromagnetic induction film can extend along the back panel to the bottom of the plastic frame. The extended side of the back panel will be located outside the plastic frame, resulting in the border of the touch-screen LCD display device being too wide, which does not conform to the current development trend of narrow borders. Summary of the Invention

[0005] In view of this, the present application provides a touch-sensitive liquid crystal display device and a display apparatus, which are used to improve the problem of excessively wide borders of the display apparatus in order to improve touch accuracy.

[0006] The technical solutions adopted by this application to solve the above technical problems are:

[0007] In a first aspect, an embodiment of the present application provides a touch-sensitive liquid crystal display device, comprising:

[0008] The backlight module comprises a back plate, a plastic frame located on the back plate, and an optical component located in the plastic frame;

[0009] a liquid crystal display panel, disposed on a side of the plastic frame away from the back plate; and

[0010] The electromagnetic film comprises a first sub-electromagnetic film and a second sub-electromagnetic film, wherein the first sub-electromagnetic film is at least provided on the back plate and located in the plastic frame; the second sub-electromagnetic film is at least provided on the surface of the plastic frame;

[0011] Wherein, when projected along a first direction, the projection of the first sub-electromagnetic film partially contacts the projection of the second sub-electromagnetic film, and the first direction is the thickness direction of the liquid crystal display device.

[0012] In some embodiments of the present application, projected along the first direction, the projection of the first sub-electromagnetic film partially overlaps with the projection of the second sub-electromagnetic film to form a total projection, and the total projection completely covers the surface of the liquid crystal display panel facing the backplane.

[0013] In some embodiments of the present application, a first polarizer is provided on the side of the liquid crystal display panel facing the back plate, and the first polarizer is located on one side of the second sub-electromagnetic film and is aligned with the first sub-electromagnetic film.

[0014] In some embodiments of the present application, one side of the first sub-electromagnetic film extends toward the second sub-electromagnetic film and is provided on the surface of the rubber frame, one side of the second sub-electromagnetic film extends toward the first sub-electromagnetic film and is provided on the surface of the rubber frame, and the first sub-electromagnetic film and the second sub-electromagnetic film are connected on the surface of the rubber frame.

[0015] In some embodiments of the present application, the first sub-electromagnetic film includes a first film segment and a second film segment, the first film segment is arranged on the back plate and located in the rubber frame, the second sub-electromagnetic film includes a third film segment and a fourth film segment, the third film segment is arranged on the surface of the rubber frame, and the third film segment and the first film segment are connected through the second film segment and the fourth film segment.

[0016] In some embodiments of the present application, both sides of the second membrane segment are respectively connected to the first membrane segment and the fourth membrane segment, the side of the fourth membrane segment facing away from the second membrane segment is connected to the third membrane segment, and the second membrane segment and the fourth membrane segment are both attached to the side of the rubber frame facing the first sub-electromagnetic film.

[0017] In some embodiments of the present application, a light shielding layer is provided between the second sub-electromagnetic film and the plastic frame.

[0018] In some embodiments of the present application, the optical component includes a reflective sheet, a light guide plate, and an optical film layer. Along the first direction, the reflective sheet, the light guide plate, and the optical film layer are stacked in sequence on the side of the first sub-electromagnetic film facing the liquid crystal display panel.

[0019] In some embodiments of the present application, projected along the first direction, the projection of one side edge of the back plate along the second direction is located within the projection of the plastic frame, the second direction is the direction of the first sub-electromagnetic film toward the plastic frame, and the second direction is perpendicular to the first direction.

[0020] In some embodiments of the present application, along the second direction, the distance between the side of the liquid crystal display panel facing away from the plastic frame and the side of the plastic frame facing away from the liquid crystal display panel is A, the length of both sides of the liquid crystal display panel along the second direction is B, and AB≤0.25mm.

[0021] In a second aspect, an embodiment of the present application provides a display device, including:

[0022] outer frame;

[0023] As described in the first aspect, the touch-sensitive liquid crystal display device is provided on the outer frame and located inside the outer frame.

[0024] In summary, due to the adoption of the above technical solution, this application has at least the following beneficial effects:

[0025] The embodiments of the present application provide a touch-sensitive liquid crystal display device and a display equipment, which mainly divide the electromagnetic film in the prior art into two electromagnetic films, namely a first sub-electromagnetic film and a second sub-electromagnetic film, and arrange the first sub-electromagnetic film on the back panel, and the second sub-electromagnetic film on the rubber frame, thereby achieving an extension effect of the electromagnetic film, increasing the coverage of the liquid crystal display panel area, and improving the touch effect. Moreover, the electromagnetic film is arranged on the rubber frame and the back panel respectively, and there is no need to reserve space between the back panel and the rubber frame for the extension of the electromagnetic film, nor is there any need to extend the back panel to the outside of the rubber frame, thereby effectively avoiding the problem of increasing the border width of the display device in order to improve the touch effect. In detail, it is mainly achieved by utilizing a first sub-electromagnetic film provided on the back panel and located on one side of the plastic frame, and a second sub-electromagnetic film provided on the plastic frame, and the first sub-electromagnetic film and the second sub-electromagnetic film are in contact with each other along the projection portion of the back panel toward the liquid crystal display panel, thereby increasing the area of ​​the electromagnetic film covering the liquid crystal display panel, effectively improving the touch effect, and avoiding problems such as broken touch near the plastic frame; and because the first sub-electromagnetic film and the second sub-electromagnetic film are provided separately, the first sub-electromagnetic film does not need to rely on the back panel to extend to the bottom of the plastic frame to increase the area of ​​the liquid crystal display panel covered by the first sub-electromagnetic film, so the back panel does not need to be spaced apart from the plastic frame to reserve extension space for the first sub-electromagnetic film. The back panel can be directly fixed to the plastic frame at the contact surface, and the back panel does not need to be extended to the outside of the plastic frame for fixation, thereby effectively avoiding the problem of widening the display device frame due to improving the touch effect. Display devices with touch function can still meet the development trend of narrow frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings of the embodiments. Obviously, the drawings described below only relate to some embodiments of the present application and are not intended to limit the present application.

[0027] Figure 1 A schematic structural diagram of a touch-sensitive liquid crystal display device provided in one embodiment of the present application;

[0028] Figure 2 This is a structural diagram of a touch-sensitive liquid crystal display device provided in another embodiment of the present application;

[0029] Figure 3 This is a structural diagram of a touch-sensitive liquid crystal display device provided in another embodiment of the present application;

[0030] Figure 4 This is a structural diagram of a touch-sensitive liquid crystal display device provided in another embodiment of the present application;

[0031] Figure 5 Schematic diagram of the structure of a display device provided in one embodiment of the present application.

[0032] Description of reference numerals:

[0033] 1. Touch-sensitive liquid crystal display device; 11. Backlight module; 111. Backplane; 112. Plastic frame; 113. Optical assembly; 1131. Reflector; 1132. Light guide plate; 1133. Optical film layer; 12. Liquid crystal display panel; 13. Electromagnetic film; 131. First sub-electromagnetic film; 1311. First film segment; 1312. Second film segment; 132. Second sub-electromagnetic film; 1321. Third film segment; 1322. Fourth film segment; 14. First polarizer; 15. Second polarizer; 16. Light-shielding layer; 2. Frame;

[0034] Z, first direction; X, second direction. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0036] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0037] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or description." 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 implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that one of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, known structures and processes are not described in detail to avoid obscuring the description of the present application with unnecessary detail. Therefore, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.

[0038] See Figure 1 , an embodiment of the present application provides a touch-sensitive liquid crystal display device, comprising:

[0039] The backlight module 11 includes a back plate 111 , a plastic frame 112 located on the back plate 111 , and an optical component 113 located in the plastic frame 112 ;

[0040] The liquid crystal display panel 12 is disposed on a side of the plastic frame 112 away from the back plate 111; and

[0041] The electromagnetic film 13 includes a first sub-electromagnetic film 131 and a second sub-electromagnetic film 132. The first sub-electromagnetic film 131 is at least provided on the back plate 111 and located in the plastic frame 112. The second sub-electromagnetic film 132 is at least provided on the surface of the plastic frame 112.

[0042] Wherein, when projected along a first direction Z, the projection of the first sub-electromagnetic film 131 partially contacts the projection of the second sub-electromagnetic film 132 , and the first direction Z is the thickness direction of the liquid crystal display device.

[0043] The technical solution provided in this application is mainly achieved by dividing the electromagnetic film 13 in the prior art into two electromagnetic films 13, namely a first sub-electromagnetic film 131 and a second sub-electromagnetic film 132, and setting the first sub-electromagnetic film 131 on the back plate 111, and the second sub-electromagnetic film 132 on the plastic frame 112, thereby achieving the extension effect of the electromagnetic film 13, increasing the coverage of the liquid crystal display panel 12 area, and improving the touch effect. The electromagnetic film 13 is respectively set on the plastic frame 112 and the back plate 111, and there is no need to reserve space for the extension of the electromagnetic film 13 between the back plate 111 and the plastic frame 112, nor is there any need to extend the back plate 111 to the outside of the plastic frame 112, thereby effectively avoiding the problem of increasing the border width of the display device to improve the touch effect. In detail, the first sub-electromagnetic film 131 is provided on the back plate 111 and is located on one side of the plastic frame 112, and the second sub-electromagnetic film 132 is provided on the plastic frame 112. The projections of the first sub-electromagnetic film 131 and the second sub-electromagnetic film 132 along the back plate 111 toward the liquid crystal display panel 12 partially overlap, thereby increasing the area of ​​the electromagnetic film 13 covering the liquid crystal display panel 12, effectively improving the touch effect, and avoiding problems such as disconnection near the plastic frame 112; and because the first sub-electromagnetic film 131 and the second sub-electromagnetic film 132 are provided separately, the first sub-electromagnetic film 131 and the second sub-electromagnetic film 132 are provided separately. The magnetic film 131 does not need to rely on the back plate 111 to extend to the bottom of the plastic frame 112 to increase the area of ​​the first sub-electromagnetic film 131 covering the liquid crystal display panel 12. Therefore, the back plate 111 does not need to be spaced apart from the plastic frame 112 to reserve extension space for the first sub-electromagnetic film 131. The back plate 111 can be directly fixed to the plastic frame 112 at the contact surface, and the back plate 111 does not need to extend to the outside of the plastic frame 112 for fixation, thereby effectively avoiding the problem of widening the display device frame due to improving the touch effect. Display devices with touch function can still meet the development trend of narrow frame.

[0044] It should be noted that the touch-sensitive liquid crystal display device provided in the present application adopts electromagnetic induction input technology, namely EMR technology. The working principle of EMR technology is as follows: below the liquid crystal display panel 12, there is an electromagnetic induction plate (i.e. the electromagnetic film 13 mentioned above) that can detect the activity of the EMR pen, and coils are distributed vertically and horizontally on the electromagnetic film 13. "Magnetism generates electricity, and electricity generates magnetism." As the pen moves, within the magnetic field generated by the energized electromagnetic film 13, the resonant circuit in the pen can accumulate weak electrical energy. When the pen accumulates energy, the control circuit will stop supplying current to the circulating coil and connect the circulating coil to the receiving circuit. At this time, the energy accumulated by the pen will be transmitted from the coil at the pen tip back to the electromagnetic film 13 through the free oscillation of the resonant circuit. After transmitting the energy back to the electromagnetic film 13, the control circuit first scans the circulating coil on the electromagnetic film 13 to preliminarily detect the approximate position of the pen. It should also be noted that when the projection of the first sub-electromagnetic film 131 partially contacts the projection of the second sub-electromagnetic film 132, the partial contact here means that the projection of the first sub-electromagnetic film 131 and the projection of the second sub-electromagnetic film 132 include both partial overlap and non-overlap but the side of the projection of the first sub-electromagnetic film 131 contacts the side of the projection of the second sub-electromagnetic film 132.

[0045] In some embodiments, when projected along the direction from the back plate 111 toward the liquid crystal display panel 12, the projection of the first sub-electromagnetic film 131 partially overlaps with the projection of the second sub-electromagnetic film 132 to form a total projection, and the total projection completely covers the surface of the liquid crystal display panel 12 facing the back plate 111. By enabling the first sub-electromagnetic film 131 and the second sub-electromagnetic film 132 to jointly cover the surface of the liquid crystal display panel 12, it is possible to avoid missing a portion of the liquid crystal display panel 12, which could lead to problems such as touch failure, disconnection, or erroneous touch response in the missing portion.

[0046] See Figure 3 In some embodiments, a first polarizer 14 is provided on the side of the liquid crystal display panel 12 facing the backplate 111. The first polarizer 14 is located on one side of the second sub-electromagnetic film 132 and aligned with the first sub-electromagnetic film 131. As can be seen from the above description of the position of the first polarizer 14, the first polarizer 14 is located on one side of the second sub-electromagnetic film 132 and on the same layer as the second sub-electromagnetic film 132. This facilitates a thinner display device compared to the prior art. Specifically, by arranging the first polarizer 14 and the second sub-electromagnetic film 132 on the same layer and jointly polarizing the light, the thickness of the first polarizer 14 is reduced compared to the prior art where the first polarizer 14 is located on the side of the second sub-electromagnetic film 132 facing away from the plastic frame 112, thereby effectively reducing the thickness of the display device.

[0047] See Figure 4In some embodiments, one side of the first sub-electromagnetic film 131 extends toward the second sub-electromagnetic film 132 and is disposed on the surface of the plastic frame 112. One side of the second sub-electromagnetic film 132 extends toward the first sub-electromagnetic film 131 and is disposed on the surface of the plastic frame 112. The first sub-electromagnetic film 131 and the second sub-electromagnetic film 132 are connected to each other on the surface of the plastic frame 112. This embodiment is a case of partial contact as described above, specifically, the projections of the first sub-electromagnetic film 131 and the second sub-electromagnetic film 132 do not overlap, but only contact. By connecting the first sub-electromagnetic film 131 and the second sub-electromagnetic film 132, touch accuracy can be further improved.

[0048] Furthermore, the first sub-electromagnetic film 131 includes a first film segment 1311 and a second film segment 1312, the first film segment 1311 is provided on the back plate 111 and is located in the plastic frame 112, the second sub-electromagnetic film 132 includes a third film segment 1321 and a fourth film segment 1322, the third film segment 1321 is provided on the surface of the plastic frame 112, and the third film segment 1321 and the first film segment 1311 are connected through the second film segment 1312 and the fourth film segment 1322. The connection between the second film segment 1312 and the fourth film segment 1322 here can be connected by an auxiliary connection structure, such as glue, or by integral molding. In this embodiment, integral molding is used. In addition, the second film segment 1312 and the fourth film segment 1322 can be completely attached to the side of the plastic frame 112, or they can maintain a certain distance from the side of the plastic frame 112, without limitation.

[0049] Furthermore, in this embodiment, both sides of the second film segment 1312 are connected to the first film segment 1311 and the fourth film segment 1322, respectively. The side of the fourth film segment 1322 facing away from the second film segment 1312 is connected to the third film segment 1321. The second and fourth film segments 1312 and 1322 are both attached to the side of the plastic frame 112 facing the first sub-electromagnetic film 131. In this embodiment, the second and fourth film segments 1312 and 1322 are preferably attached to the side of the plastic frame 112. This helps improve the force applied to the electromagnetic film 13, making it more uniform. This eliminates the need to keep the electromagnetic film 13 in a constant tensioned state. Furthermore, the attachment method simplifies the installation of the electromagnetic film 13. Furthermore, the aforementioned arrangement of the second and fourth film segments 1312 and 1322 can improve touch accuracy while minimizing the increase in the width of the display device's border.

[0050] See Figure 1 and Figure 2In some embodiments, a light shielding layer 16 is provided between the second sub-electromagnetic film 132 and the plastic frame 112. By disposing the light shielding layer 16 on the side of the liquid crystal display panel 12 facing the back plate 111, light shielding can be achieved to prevent light leakage. In other embodiments, the light shielding layer 16 can be eliminated, and the second sub-electromagnetic film 132 can be directly disposed on the side of the plastic frame 112 facing the back plate 111. In this case, the second sub-electromagnetic film 132 serves as both the electromagnetic film 13 and the light shielding layer 16, providing light shielding and helping to reduce the thickness of the display device.

[0051] See Figure 1 In some embodiments, the touch-sensitive liquid crystal display device further includes a first polarizer 14 and a second polarizer 15. The optical assembly 113 includes a reflector 1131, a light guide plate 1132, and an optical film layer 1133. Along the first direction Z, the reflector 1131, the light guide plate 1132, and the optical film layer 1133 are sequentially stacked and disposed on the side of the first sub-electromagnetic film 131 facing the liquid crystal display panel 12. The first polarizer 14 is disposed on the side of the liquid crystal display panel 12 facing the backplane 111, and the second polarizer 15 is disposed on the side of the liquid crystal display panel 12 facing away from the backplane 111. The reflector 1131 primarily reflects light, while the light guide plate 1132 primarily directs light emitted from the light source to the entire surface of the light guide plate 1132.

[0052] See Figure 1 In some embodiments, along the first direction Z, the projection of a side edge of the back plate 111 along the second direction X lies within the projection of the frame 112. The second direction X is the direction from the first sub-electromagnetic film 131 toward the frame 112, and the second direction X is perpendicular to the first direction Z. By defining the projection of a side edge of the back plate 111 along the second direction X as lying within the projection of the frame 112, the side edge of the back plate 111 overlaps with the outer edge of the frame 112 in the first direction Z, or the side edge of the back plate 111 lies within the projection of the outer edge of the frame 112 in the first direction Z. In this case, only the outer edge of the frame 112 in the second direction X needs to be defined, which is the outermost position of the display device frame. Compared to the prior art, one side of the back panel 111 is located outside the plastic frame 112 and surrounds the plastic frame 112. The outermost position of the display device is the position outside the back panel 111, which includes the length of the plastic frame 112 in the second direction X. That is, the frame width in the prior art is greater than the frame width of the display device provided in the embodiment of the present application.

[0053] Furthermore, along the second direction X, the distance between the side of the liquid crystal display panel 12 facing away from the plastic frame 112 and the side of the plastic frame 112 facing away from the liquid crystal display panel 12 is A, and the length of the two sides of the liquid crystal display panel 12 along the second direction X is B, and AB≤0.25mm. For example, in combination with the prior art:

[0054] Existing technical solution: Border width = width A of LCD panel 12 (assuming A ≈ 2.4) + gap between LCD panel 12 and frame 112 (assuming gap ≈ 0.2) + width of frame 112 (assuming width of frame 112 = 0.35-0.45, the specific size is selected based on actual conditions) + gap between the outer side of frame 112 and the side of backplate 111 located outside frame 112 (assuming gap ≈ 0.05) + width of the side of backplate 111 located outside frame 112 (this width ≈ 0.35) ≥ 3.45 mm.

[0055] The technical solution of this application: the frame width = the width A of the LCD panel 12 (assuming A≈2.4) + the vertical gap between the LCD panel 12 and the outer side of the plastic frame 112 (assuming the vertical gap ≈0.2) ≈ 2.6mm. The vertical gap ≤ 0.25.

[0056] By comparison, it can be seen that compared with the existing technology, the border width is reduced by 0.85; the border width is about 2.6mm, which is at the same level as the border width of the current mainstream display device without EMR function. In other words, the present application can achieve the dual effects of narrow border and precise touch through the above structure.

[0057] It should be noted that the plastic frame 112 and the back plate 111 described in any of the above embodiments are fixedly connected and integrally formed, and the molding process may be injection molding.

[0058] An embodiment of the present application further provides a display device, comprising:

[0059] Outer frame 2;

[0060] The touch-sensitive liquid crystal display device described in any of the above embodiments is provided on and inside the outer frame 2. Because the display device includes the touch-sensitive liquid crystal display device described in the above embodiments, it also has the structure and beneficial effects of the touch-sensitive liquid crystal display device. The derivation process of the specific structure and beneficial effects can be found in the above embodiments and will not be repeated here.

[0061] The basic concepts have been described above. It will be apparent to those skilled in the art that the detailed disclosure above is merely illustrative and does not limit the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to the present application. Such modifications, improvements, and amendments are suggested in the present application and remain within the spirit and scope of the exemplary embodiments of the present application.

[0062] At the same time, this application uses specific terms to describe the embodiments of this application. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or multiple times in different locations in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application may be appropriately combined.

[0063] Similarly, it should be noted that, in order to simplify the description of this application and thus facilitate understanding of one or more embodiments of the application, the foregoing description of the embodiments of this application sometimes combines multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those recited in the claims. In fact, the features of an embodiment may be fewer than all the features of the individual embodiments disclosed above.

[0064] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, and documents, cited in this application is hereby incorporated by reference in its entirety, except for any application history that is inconsistent with or conflicts with this application, and any document (currently or subsequently appended to this application) that limits the broadest scope of the claims of this application. It should be noted that if the descriptions, definitions, and / or terminology used in the accompanying materials are inconsistent with or conflict with the content of this application, the descriptions, definitions, and / or terminology used in this application will control.

Claims

1. A touch-sensitive liquid crystal display device, characterized in that: include: The backlight module comprises a back plate, a plastic frame located on the back plate, and an optical component located in the plastic frame; a liquid crystal display panel, disposed on a side of the plastic frame away from the back plate; and The electromagnetic film comprises a first sub-electromagnetic film and a second sub-electromagnetic film, wherein the first sub-electromagnetic film is at least provided on the back plate and located in the plastic frame; the second sub-electromagnetic film is at least provided on the surface of the plastic frame; Wherein, when projected along a first direction, the projection of the first sub-electromagnetic film partially contacts the projection of the second sub-electromagnetic film, and the first direction is the thickness direction of the liquid crystal display device.

2. The touch-sensitive liquid crystal display device according to claim 1, wherein: Projected along the first direction, the projection of the first sub-electromagnetic film partially overlaps with the projection of the second sub-electromagnetic film to form a total projection, and the total projection completely covers the surface of the liquid crystal display panel facing the backplane.

3. The touch-sensitive liquid crystal display device according to claim 1, wherein: A first polarizer is provided on a side of the liquid crystal display panel facing the back plate, and the first polarizer is located on a side of the second sub-electromagnetic film and is aligned with the first sub-electromagnetic film.

4. The touch-sensitive liquid crystal display device according to claim 1, wherein: One side of the first sub-electromagnetic film extends toward the second sub-electromagnetic film and is arranged on the surface of the rubber frame, one side of the second sub-electromagnetic film extends toward the first sub-electromagnetic film and is arranged on the surface of the rubber frame, and the first sub-electromagnetic film and the second sub-electromagnetic film are connected on the surface of the rubber frame.

5. The touch-sensitive liquid crystal display device according to claim 4, wherein: The first sub-electromagnetic film includes a first film segment and a second film segment, the first film segment is arranged on the back plate and located in the rubber frame, the second sub-electromagnetic film includes a third film segment and a fourth film segment, the third film segment is arranged on the surface of the rubber frame, and the third film segment and the first film segment are connected through the second film segment and the fourth film segment.

6. The touch-sensitive liquid crystal display device according to claim 5, wherein: The two sides of the second membrane segment are respectively connected to the first membrane segment and the fourth membrane segment, the side of the fourth membrane segment facing away from the second membrane segment is connected to the third membrane segment, and the second membrane segment and the fourth membrane segment are both attached to the side of the rubber frame facing the first sub-electromagnetic membrane.

7. The touch-sensitive liquid crystal display device according to claim 1, wherein: A light shielding layer is provided between the second sub-electromagnetic film and the plastic frame.

8. The touch-sensitive liquid crystal display device according to claim 1, wherein: The optical component includes a reflective sheet, a light guide plate, and an optical film layer. Along the first direction, the reflective sheet, the light guide plate, and the optical film layer are sequentially stacked on a side of the first sub-electromagnetic film facing the liquid crystal display panel.

9. The touch-sensitive liquid crystal display device according to any one of claims 1 to 8, wherein: Projected along the first direction, the projection of one side edge of the back plate along the second direction is located within the projection of the plastic frame. The second direction is the direction of the first sub-electromagnetic film toward the plastic frame, and the second direction is perpendicular to the first direction.

10. A display device, characterized in that: include: outer frame; The touch-sensitive liquid crystal display device according to any one of claims 1 to 9, wherein the touch-sensitive liquid crystal display device is provided on the outer frame and located inside the outer frame.

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