Narrow-frame vehicle-mounted rearview mirror liquid crystal display screen

Abstract

The utility model discloses a narrow-frame liquid crystal display screen of a vehicle-mounted rearview mirror, which comprises a lower polaroid, a lower substrate, an upper substrate, an upper polaroid, a touch panel and a cover plate which are sequentially overlapped from bottom to top, and a plurality of capacitive touch keys are arranged on the upper surface of the touch panel. A plurality of capacitive touch keys are arranged on the upper surface of the touch panel, transparent ITO (indium tin oxide) wires are led out from the capacitive touch keys and are positioned in a display area, a touch FPC (flexible printed circuit) is bound on the touch panel, a touch menu key is arranged on the upper surface of the touch panel positioned on one side of the touch FPC, the touch FPC is electrically connected with the transparent ITO wires and the touch menu key respectively, and the transparent ITO wires are electrically connected with the touch menu key. And the touch menu key and the plurality of capacitive touch keys are positioned on the same side. The rearview mirror does not need to be subjected to full-screen touch control, only the touch control function of several common areas needs to be achieved, the multiple capacitive touch control keys can completely meet the touch control requirement of the rearview mirror, and the approximate frameless design is achieved.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, and more specifically, to a narrow-bezel vehicle rearview mirror liquid crystal display screen. Background Technology

[0002] Currently, all touch-enabled automotive rearview mirror display modules use a full-screen touch approach. The advantage is comprehensive touch functionality, but the disadvantage is the use of multiple touch channels, resulting in more space occupied by the wiring along the edges of the touch glass and even more space needed for mounting points. This leads to a wide bezel in the final touch display module. Some solutions reduce edge wiring by placing touch patterns on one side of the touch glass and leaving the other side blank. However, many automakers still complain about the large bezels and hope to further reduce them, or even achieve a bezel-less effect, to improve product competitiveness. Utility Model Content

[0003] The technical problem this invention aims to solve is how to achieve a near-borderless effect for the LCD screen of a vehicle rearview mirror, thereby enhancing the product's competitiveness.

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

[0005] To address the aforementioned technical problems, this utility model provides a narrow-bezel automotive rearview mirror LCD display screen, comprising a lower polarizer, a lower substrate, an upper substrate, an upper polarizer, a touch panel, and a cover plate stacked sequentially from bottom to top. The upper surface of the touch panel is provided with multiple capacitive touch buttons, each with a transparent ITO trace extending from it. The transparent ITO trace is located in the display area. A touch-sensitive FPC is bonded to the touch panel. A touch-sensitive menu button is provided on the upper surface of the touch panel located on one side of the touch-sensitive FPC. The touch-sensitive FPC is electrically connected to both the transparent ITO trace and the touch-sensitive menu button. The touch-sensitive menu button and the multiple capacitive touch buttons are all located on the same side.

[0006] In a preferred embodiment of the narrow-bezel vehicle rearview mirror LCD display provided by this utility model, the lower substrate is longer than the upper substrate and extends outward. The edge of the upper surface of the outwardly extending lower substrate is provided with a protrusion. A buffer adhesive is provided between the protrusion and the upper substrate on the upper surface of the lower substrate, and the buffer adhesive abuts against the touch panel.

[0007] In a preferred embodiment of the narrow-bezel vehicle rearview mirror LCD display provided by this utility model, the raised upper surface is flush with the upper surface of the upper substrate.

[0008] In a preferred embodiment of the narrow-bezel vehicle rearview mirror LCD display provided by this utility model, the buffer adhesive is silicone adhesive.

[0009] In a preferred embodiment of the narrow-bezel vehicle rearview mirror LCD display provided by this utility model, a rounded corner is provided between the protrusion and the lower substrate.

[0010] In a preferred embodiment of the narrow-bezel vehicle rearview mirror LCD display provided by this utility model, the upper surface of the lower substrate and the side surface of the protrusion are rough surfaces.

[0011] As a preferred embodiment of the narrow-bezel vehicle rearview mirror LCD display provided by this utility model, the rough surface is a frosted surface or a diamond knurled surface.

[0012] As a preferred embodiment of the narrow bezel vehicle rearview mirror LCD display provided by this utility model, the upper surface of the touch FPC is provided with a QR code laser area, and the upper surface of the touch FPC located on the QR code laser area is provided with a black ink layer and a white ink layer on the black ink layer, and the white ink layer is formed with a QR code by laser.

[0013] In a preferred embodiment of the narrow-bezel vehicle rearview mirror LCD display provided by this utility model, the thickness of the black ink layer is 30μm. ～ 40μm.

[0014] In a preferred embodiment of the narrow-bezel vehicle rearview mirror LCD display provided by this utility model, the thickness of the white ink layer is 10μm. ～ 20μm.

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

[0016] Since the upper surface of the touch panel has multiple capacitive touch buttons, and the rearview mirror does not need full-screen touch, but only needs to implement touch functions in a few commonly used areas, multiple capacitive touch buttons can fully meet the touch needs of the rearview mirror. The transparent ITO wiring can be set in the display area, saving the wiring space at the edge of the glass and achieving a near-borderless design. The menu button can be designed in the ink area at the edge for easy access to the streaming media rearview mirror function menu. Its bezel can be made very small, thus reducing costs. Attached Figure Description

[0017] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This utility model provides a structural schematic diagram of a narrow-bezel vehicle rearview mirror LCD display screen.

[0019] Figure 2 for Figure 1 A bottom view of the central touch panel.

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

[0021] Figure 4 This is a schematic diagram of the structure of Example 3.

[0022] Explanation of icon numbers:

[0023] Lower polarizer 1; Lower substrate 2; Upper substrate 3; Upper polarizer 4; Touch panel 5; Cover plate 6; Capacitive touch button 51; Transparent ITO trace 52; Touch FPC 7; Touch menu button 53;

[0024] 21 raised section; 22 cushioning adhesive;

[0025] Black ink layer 71; white ink layer 72. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] This utility model provides a narrow-bezel automotive rearview mirror LCD display screen, which includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer, a touch panel, and a cover plate stacked sequentially from bottom to top. The upper surface of the touch panel is provided with multiple capacitive touch buttons, and the multiple capacitive touch buttons are led out by transparent ITO traces. The transparent ITO traces are located in the display area. A touch FPC is bound to the touch panel. A touch menu button is provided on the upper surface of the touch panel located on one side of the touch FPC. The touch FPC is electrically connected to the transparent ITO traces and the touch menu button, respectively. The touch menu button and the multiple capacitive touch buttons are all located on the same side.

[0030] Since the upper surface of the touch panel has multiple capacitive touch buttons, and the rearview mirror does not need full-screen touch, but only needs to implement touch functions in a few commonly used areas, multiple capacitive touch buttons can fully meet the touch needs of the rearview mirror. The transparent ITO wiring can be set in the display area, saving the wiring space at the edge of the glass and achieving a near-borderless design. The menu button can be designed in the ink area at the edge for easy access to the streaming media rearview mirror function menu. Its bezel can be made very small, thus reducing costs.

[0031] 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 with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] Example 1

[0033] Please see Figure 1 and Figure 2 This utility model provides a narrow-bezel vehicle rearview mirror LCD display screen, which includes a lower polarizer 1, a lower substrate 2, an upper substrate 3, an upper polarizer 4, a touch panel 5, and a cover plate 6 stacked sequentially from bottom to top. The upper surface of the touch panel 5 is provided with multiple capacitive touch buttons 51. In this embodiment, there are four capacitive touch buttons 51, which are used to activate the front camera, the rear camera, the simultaneous display of the front and rear cameras, and other buttons, respectively. The multiple capacitive touch buttons 51 are led out with transparent ITO traces 52, which are located in the display area. A touch FPC 7 is bound to the touch panel 5. The upper surface of the touch panel 5 located on one side of the touch FPC 7 is provided with a touch menu button 53. The touch FPC 7 is electrically connected to the transparent ITO traces 52 and the touch menu button 53, respectively. The touch menu button 53 and the multiple capacitive touch buttons 51 are all located on the same side. Since the upper surface of the touch panel 5 is equipped with multiple capacitive touch buttons 51, and the rearview mirror does not need full-screen touch, but only needs to implement the touch functions of a few commonly used areas, the multiple capacitive touch buttons 51 can fully meet the touch needs of the rearview mirror. The transparent ITO traces 52 can be set in the display area, saving the trace space at the edge of the glass and achieving a near-borderless design. The menu button can be designed in the ink area at the edge for easy access to the streaming media rearview mirror function menu. Its bezel can be made very small, thus reducing costs.

[0034] More preferably, a pressure-sensitive pattern is provided on the lower substrate 2 to enable more operational possibilities.

[0035] Example 2

[0036] Please see Figure 3As a further optimization of Embodiment 1, in this embodiment, the lower substrate 2 is longer than the upper substrate 3 and extends outward. A protrusion 21 is provided on the edge of the upper surface of the outwardly extending lower substrate 2. A buffer adhesive 22 is provided between the protrusion 21 and the upper substrate 3 on the upper surface of the lower substrate 2, and the buffer adhesive 22 abuts against the touch panel 5. Because the edge of the lower substrate 2 has a protrusion 21, the protrusion 21 can restrict the flow of the buffer adhesive 22, thereby making the shape of the buffer adhesive 22 easier to control, preventing overflow or incomplete dispensing. This avoids the inability of the LCD screen to be assembled with the casing. Furthermore, it avoids the problems of poor buffering effect and easy breakage of the lower substrate 2 caused by incomplete dispensing, preventing abnormal display of the LCD screen.

[0037] Furthermore, the upper surface of the protrusion 21 is flush with the upper surface of the upper substrate 3 to further restrict the flow of the buffer adhesive 22, thereby making the shape of the buffer adhesive 22 easy to control and preventing overflow or incomplete dispensing.

[0038] Furthermore, the buffer adhesive 22 is a silicone adhesive.

[0039] Furthermore, a rounded corner is provided between the protrusion 21 and the lower substrate 2, so that the buffer adhesive 22 can more easily fill the space between the protrusion 21 on the upper surface of the lower substrate 2 and the upper substrate 3. The rounded corner of the protrusion 21 allows the buffer adhesive 22 to flow more smoothly into the space between the protrusion 21 on the upper surface of the lower substrate 2 and the upper substrate 3, thus making it less likely for air bubbles to appear.

[0040] Furthermore, the upper surface of the lower substrate 2 and the side surface of the protrusion 21 are rough surfaces to improve the fixing effect of the buffer adhesive 22.

[0041] Furthermore, the rough surface is either frosted or knurled to further improve the fixing effect of the cushioning adhesive 22.

[0042] Example 3

[0043] Please see Figure 4 As a further optimization of Embodiment 1, in this embodiment, the upper surface of the touch FPC7 is also provided with a QR code laser area. A black ink layer 71 and a white ink layer 72 are provided on the upper surface of the touch FPC7 located in the QR code laser area. The white ink layer 72 is laser-formed with a QR code. Because two layers of ink, black ink layer 71 and white ink layer 72, are provided, the surface white ink layer 72 is laser-etched away, exposing the underlying black ink layer 71. The laser-etched area appears black. The QR code generated in this way has good contrast, is easy to scan, and will not fall or break, preventing QR code failure and significantly reducing labor costs.

[0044] Furthermore, the thickness of the black ink layer 71 is 30 μm.～ 40μm. The thickness of the white ink layer 72 is 10μm. ～ 20μm. This thickness is just enough for a commonly used ultraviolet laser to penetrate, and there is no dust around it after laser lithography, which has the advantages of high cycle time and efficiency. The reason why the lower black ink layer 71 is thicker than the upper white ink layer 72 is to avoid laser power energy fluctuations and prevent the black ink layer 71 from being penetrated by the laser and damaging the internal layers of the touch FPC7.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A narrow-frame vehicle rearview mirror liquid crystal display, characterized in that: The invention discloses a touch screen display device comprising a lower polarizer, a lower substrate, an upper substrate, an upper polarizer, a touch panel and a cover plate which are sequentially stacked from bottom to top. A plurality of capacitive touch buttons are arranged on the upper surface of the touch panel. Transparent ITO wirings are led out from the plurality of capacitive touch buttons. The transparent ITO wirings are located in the display area. A touch FPC is bound to the touch panel. A touch menu button is arranged on the upper surface of the touch panel on one side of the touch FPC. The touch FPC is electrically connected to the transparent ITO wirings and the touch menu button respectively. The touch menu button and the plurality of capacitive touch buttons are located on the same side.

2. The narrow-frame vehicle rearview mirror liquid crystal display according to claim 1, characterized in that: The lower substrate is longer than the upper substrate and extends outwards, a protrusion is arranged on the edge of the upper surface of the lower substrate extending outwards, a buffer glue is arranged on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the touch panel.

3. The narrow-frame vehicle rearview mirror liquid crystal display according to claim 2, characterized in that: An upper surface of the protrusion is flush with an upper surface of the upper substrate.

4. The narrow-frame vehicle rearview mirror liquid crystal display screen according to claim 2, characterized in that: The buffer glue is silicone glue.

5. The narrow-frame vehicle rearview mirror liquid crystal display screen according to claim 2, characterized in that: A rounded corner is arranged between the protrusion and the lower substrate.

6. The narrow-frame vehicle rearview mirror liquid crystal display screen according to claim 2, characterized in that: The upper surface of the lower substrate and the side surfaces of the protrusion are rough surfaces.

7. The narrow-frame vehicle rearview mirror liquid crystal display according to claim 6, characterized in that: The rough surface is a frosted surface or a diamond knurled surface.

8. The narrow-frame vehicle rearview mirror liquid crystal display according to claim 1, characterized in that: A two-dimensional code laser area is arranged on the upper surface of the touch FPC, a black ink layer and a white ink layer arranged on the black ink layer are arranged on the upper surface of the touch FPC located on the two-dimensional code laser area, and a two-dimensional code is formed on the white ink layer by laser.

9. The narrow-frame vehicle rearview mirror liquid crystal display screen according to claim 8, characterized in that: The thickness of the black ink layer is 30 μm ～ 40μm.

10. The narrow-frame vehicle rearview mirror liquid crystal display screen according to claim 8, characterized in that: The thickness of the white ink layer is 10 μm ～ 20μm.

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