Liquid crystal display screen capable of reducing stacking height

Abstract

The utility model discloses a liquid crystal display screen capable of reducing stacking height, which comprises a touch screen cover plate, a touch screen Sensor, a display module, a backlight module and a touch screen FPC (flexible printed circuit), and the touch screen Sensor is arranged on the lower surface of the touch screen cover plate; the display module is arranged at the lower part of the touch screen Sensor; the backlight module is arranged below the display module; the touch screen FPC comprises a Sensor binding section, a bending section and a backlight section which are connected in sequence, the Sensor binding section is bound to one end of the touch screen Sensor, the bending section is bent downwards in a semi-ring shape and enables the backlight section to be bent to the lower surface of the backlight module, a touch screen element is bound to the lower surface of the touch screen FPC, and the lower surface of the touch screen FPC is connected with the touch screen FPC. The touch screen element is located in a space formed by bending the touch screen FPC and located on the left side of the backlight module and / or the display module. A touch screen element can be hidden, so that the height of the liquid crystal display screen is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a liquid crystal display screen with reduced stacking height. Background Art

[0002] An integrated touch module is usually composed of a touch screen, OCA glue and a liquid crystal display. The touch screen usually includes a touch screen cover, a touch screen sensor and a touch screen FPC. There will be touch screen components such as touch IC, capacitors and resistors on the touch screen FPC, and the touch screen FPC is usually bent to the back of the backlight module. Touch screen components such as touch IC, capacitors and resistors are arranged on the surface of the touch screen FPC under the backlight module. These touch screen components such as touch IC, capacitors and resistors will increase the overall height of the integrated touch module. The height space inside the casing of some customers' casing equipment such as watches is limited, and the height of touch screen components such as touch IC, capacitors and resistors will interfere with the casing assembly. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to hide touch screen components such as touch IC and capacitors and resistors, thereby reducing the height of the liquid crystal display screen and avoiding interference between the touch screen components such as touch IC and capacitors and resistors and the casing assembly.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0005] In order to solve the above technical problems, the utility model provides a liquid crystal display screen with reduced stacking height, which includes a touch screen cover, a touch screen sensor, a display module, a backlight module and a touch screen FPC, wherein the touch screen sensor is arranged on the lower surface of the touch screen cover; the display module is arranged below the touch screen sensor; the backlight module is arranged below the display module; the touch screen FPC includes a sensor binding section, a bending section and a backlight section connected in sequence, the sensor binding section is bound to one end of the touch screen sensor, the bending section is bent downward in a semi-circular shape and makes the backlight section bend to the lower surface of the backlight module, and a touch screen element is bound to the lower surface of the touch screen FPC, and the touch screen element is located inside the space formed by the bending of the touch screen FPC and is located on the left side of the backlight module and / or the display module.

[0006] As a preferred implementation of the liquid crystal display screen with reduced stacking height provided by the utility model, a reinforcing plate is provided on the upper surface of the touch screen FPC located at the touch screen element.

[0007] As a preferred implementation of the liquid crystal display screen with reduced stacking height provided by the utility model, the material of the reinforcement plate is FR4, PI or stainless steel.

[0008] As a preferred implementation of the liquid crystal display screen with reduced stacking height provided by the utility model, the touch screen element is located in the sensor binding section.

[0009] As a preferred implementation of the liquid crystal display screen with reduced stacking height provided by the utility model, the touch screen element is located in the backlight segment.

[0010] As a preferred embodiment of the LCD display screen with reduced stacking height provided by the utility model, the upper surface and the lower surface of the touch screen FPC are covered with EMI shielding film, and the EMI shielding film is provided with an avoidance position at the touch screen element.

[0011] As a preferred implementation of the liquid crystal display screen with reduced stacking height provided by the utility model, the edge of the EMI shielding film located at the avoidance position is more than 0.5 mm away from the edge of the touch screen element.

[0012] As a preferred implementation of the LCD display with reduced stacking height provided by the utility model, a PET film is arranged between the touch screen FPC and the EMI shielding film, and the edge of the PET film close to the avoidance position exceeds the edge of the EMI shielding film.

[0013] As a preferred implementation of the liquid crystal display screen with reduced stacking height provided by the utility model, the edge of the PET film close to the avoidance position exceeds the edge of the EMI shielding film by more than 0.5 mm.

[0014] As a preferred implementation of the liquid crystal display screen with reduced stacking height provided by the utility model, a double-sided adhesive is provided on the bottom of the PET film.

[0015] The utility model has the following beneficial effects:

[0016] Compared with traditional LCD screens, it is necessary to lengthen the length of the touch screen FPC so that there is enough space inside the space formed by the bending of the touch screen FPC to place the touch screen components. Since the touch screen components are located inside the space formed by the bending of the touch screen FPC and are located on the left side of the backlight module and / or the display module, the touch screen components such as the touch IC and capacitors and resistors can be hidden, thereby reducing the height of the LCD screen and avoiding interference between the touch screen components such as the touch IC and capacitors and resistors and the casing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The utility model provides a structural schematic diagram of a liquid crystal display screen with reduced stacking height.

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the touch screen FPC.

[0020] Figure 3 This is a schematic diagram of the structure of Example 2.

[0021] Description of Figure Numbers:

[0022] Touch screen cover 1; touch screen Sensor 2; display module 3; backlight module 4; touch screen FPC 5; sensor binding section 51; bending section 52; backlight section 53; touch screen element 6; reinforcement plate 7; EMI shielding film 8; PET film 9. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0024] 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", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] The utility model provides a liquid crystal display screen with reduced stacking height, comprising a touch screen cover plate, a touch screen sensor, a display module, a backlight module and a touch screen FPC, wherein the touch screen sensor is arranged on the lower surface of the touch screen cover plate; the display module is arranged below the touch screen sensor; the backlight module is arranged below the display module; the touch screen FPC comprises a sensor binding section, a bending section and a backlight section which are connected in sequence, the sensor binding section is bound to one end of the touch screen sensor, the bending section is bent downward in a semi-circular shape and makes the backlight section bend to the lower surface of the backlight module, a touch screen element is bound to the lower surface of the touch screen FPC, and the touch screen element is located inside a space formed by the bending of the touch screen FPC and is located on the left side of the backlight module and / or the display module.

[0027] Compared with traditional LCD screens, it is necessary to lengthen the length of the touch screen FPC so that there is enough space inside the space formed by the bending of the touch screen FPC to place the touch screen components. Since the touch screen components are located inside the space formed by the bending of the touch screen FPC and are located on the left side of the backlight module and / or the display module, the touch screen components such as the touch IC and capacitors and resistors can be hidden, thereby reducing the height of the LCD screen and avoiding interference between the touch screen components such as the touch IC and capacitors and resistors and the casing assembly.

[0028] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.

[0029] See also Figure 1 and Figure 2, is a liquid crystal display screen with reduced stacking height provided by the utility model, which includes a touch screen cover plate 1, a touch screen sensor 2, a display module 3, a backlight module 4 and a touch screen FPC5, the touch screen sensor 2 is arranged on the lower surface of the touch screen cover plate 1; the display module 3 is arranged below the touch screen sensor 2; the backlight module 4 is arranged below the display module 3; the touch screen FPC5 includes a sensor binding section 51, a bending section 52 and a backlight section 53 connected in sequence, the sensor binding section 51 is bound to one end of the touch screen sensor 2, the bending section 52 is bent downward in a semi-circular shape and makes the backlight section 53 bend to the lower surface of the backlight module 4, and a touch screen element 6 is bound to the lower surface of the touch screen FPC5, and the touch screen element 6 is located inside the space formed by the bending of the touch screen FPC5 and is located on the left side of the backlight module 4 or the left side of the display module 3, or can be located on the left side of the backlight module 4 and the display module 3. Compared with the traditional LCD screen, it is necessary to lengthen the length of the touch screen FPC5 so that there is enough space inside the space formed by the bending of the touch screen FPC5 to place the touch screen element 6. Since the touch screen element 6 is located inside the space formed by the bending of the touch screen FPC5 and is located on the left side of the backlight module 4 and / or the display module 3, it can hide the touch screen elements 6 such as the touch IC and the capacitors and resistors, thereby reducing the height of the LCD screen and avoiding interference between the touch screen elements 6 such as the touch IC and the capacitors and resistors and the casing assembly.

[0030] Furthermore, a reinforcing plate 7 is provided on the upper surface of the touch screen FPC 5 located at the touch screen element 6 , and the reinforcing plate 7 is used to enhance the strength of the touch screen element 6 to avoid damage.

[0031] Furthermore, the material of the reinforcing plate 7 is FR4, PI or stainless steel. In other embodiments, if the heat generated by the touch screen FPC5 is relatively large, a heat dissipation material with better heat dissipation effect, such as an aluminum foil reinforcing plate 7, may also be used.

[0032] Furthermore, the touch screen element 6 is located in the sensor binding section 51 or in the backlight section 53 , and it only needs to be located inside the space formed by the bending of the touch screen FPC 5 .

[0033] See also Figure 3 As a further optimization scheme of Example 1, in this embodiment, the upper and lower surfaces of the touch screen FPC5 are covered with EMI shielding films 8, and the EMI shielding films 8 are provided with avoidance positions at the touch screen element 6. Since the upper and lower surfaces of the touch screen FPC5 are provided with EMI shielding films 8, the electromagnetic shielding capability of the touch screen FPC5 can be greatly improved, the stability of signal transmission is improved, various functional problems and poor display effects are avoided, and the competitiveness of the product is improved.

[0034] Furthermore, the edge of the EMI shielding film 8 at the avoidance position is more than 0.5 mm away from the edge of the touch screen element 6 , so as to prevent the edge of the EMI shielding film 8 from contacting the touch screen element 6 and causing a circuit break.

[0035] Furthermore, a PET film 9 is provided between the touch screen FPC 5 and the EMI shielding film 8, and the edge of the PET film 9 near the avoidance position exceeds the edge of the EMI shielding film 8. By extending the edge of the PET film 9 near the touch screen element 6, the edge of the PET film 9 is pulled away from the edge of the EMI shielding film 8 by a certain distance, so that even if there is a certain operation error during the attachment, the edge of the EMI shielding film 8 can be ensured not to touch the edge of the touch screen element 6, thereby insulating the edge of the EMI shielding film 8, preventing the occurrence of a short circuit problem caused by the edge of the EMI shielding film 8 touching the touch screen element 6, and improving the attachment efficiency and production yield.

[0036] Furthermore, the edge of the PET film 9 near the avoidance position exceeds the edge of the EMI shielding film 8 by more than 0.5 mm, so as to ensure that the edge of the EMI shielding film 8 does not touch the touch screen element 6, thereby insulating the edge of the EMI shielding film 8, preventing the occurrence of a short circuit problem caused by the edge of the EMI shielding film 8 touching the touch screen element 6, and improving the attachment efficiency and production yield.

[0037] Further, the bottom of the PET film 9 is provided with a double-sided adhesive or the bottom of the PET film 9 is coated with glue. Since some PET films 9 are not sticky or have insufficient stickiness, the bottom of the PET film 9 is provided with a double-sided adhesive or coated with glue, so that the PET film 9 can be adhered to the touch screen FPC5.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A liquid crystal display screen with reduced stacking height, characterized in that: It includes: Touch screen cover; A touch screen sensor, which is arranged on the lower surface of the touch screen cover; A display module, which is arranged below the touch screen Sensor; A backlight module, which is arranged below the display module; A touch screen FPC comprises a sensor binding section, a bending section and a backlight section which are connected in sequence, wherein the sensor binding section is bound to one end bound to the touch screen sensor, the bending section is bent downward in a semi-circular shape and makes the backlight section bend to the lower surface of the backlight module, and a touch screen element is bound to the lower surface of the touch screen FPC, and the touch screen element is located inside a space formed by the bending of the touch screen FPC and is located on the left side of the backlight module and / or the display module.

2. The liquid crystal display screen with reduced stacking height according to claim 1, characterized in that: A reinforcing plate is provided on the upper surface of the touch screen FPC located at the touch screen element.

3. The liquid crystal display screen with reduced stacking height according to claim 2, characterized in that: The reinforcement plate is made of FR4, PI or stainless steel.

4. The liquid crystal display screen with reduced stacking height according to claim 1, characterized in that: The touch screen element is located in the Sensor binding section.

5. The liquid crystal display screen with reduced stacking height according to claim 1, characterized in that: The touch screen element is located in the backlight segment.

6. The liquid crystal display screen with reduced stacking height according to claim 1, characterized in that: The upper surface and the lower surface of the touch screen FPC are both covered with EMI shielding films, and the EMI shielding films are provided with avoidance positions at the touch screen elements.

7. The liquid crystal display screen with reduced stacking height according to claim 6, characterized in that: The edge of the EMI shielding film located at the avoidance position is more than 0.5 mm away from the edge of the touch screen element.

8. The liquid crystal display screen with reduced stacking height according to claim 6, characterized in that: A PET film is arranged between the touch screen FPC and the EMI shielding film, and an edge of the PET film close to the avoidance position exceeds an edge of the EMI shielding film.

9. The liquid crystal display screen with reduced stacking height according to claim 8, characterized in that: The edge of the PET film close to the avoidance position exceeds the edge of the EMI shielding film by more than 0.5 mm.

10. The liquid crystal display screen with reduced stacking height according to claim 8, characterized in that: The bottom of the PET film is provided with double-sided adhesive.

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