CN221225259U - Economical L-shaped vehicle-mounted duplex screen - Google Patents

Abstract

The utility model discloses an economical L-shaped vehicle-mounted duplex screen which comprises a backlight module, a liquid crystal display module and a cover plate which are sequentially overlapped from bottom to top, wherein a BM layer is arranged on the lower surface of the cover plate, a meter screen hollowed-out part positioned on the left side and a central control screen hollowed-out part positioned on the right side are arranged on the BM layer, the liquid crystal display module comprises an array substrate arranged above the backlight module and a color film substrate arranged above the array substrate, TBN wiring and patterns are arranged on the array substrate positioned on the meter screen hollowed-out part, TFT wiring and patterns are arranged on the array substrate positioned on the central control screen hollowed-out part, and the backlight module is a regional dimming backlight module. The two screens can be lightened by only one backlight module, the weight of the whole liquid crystal display screen is lower due to the small number of the backlight modules, the product cost is obviously increased and reduced, and a plurality of manual assembly operations are reduced by only one backlight module.

Description

Economical L-shaped vehicle-mounted duplex screen

Technical Field

The utility model relates to the technical field of liquid crystal display, in particular to an economical L-shaped vehicle-mounted duplex screen.

Background

Along with the diversification of vehicle-mounted screen applications, the dual screen and triple screen structure is more and more popular with consumers; at present, the conventional structure is that a large cover plate is attached to a plurality of liquid crystal display screens, and then backlight modules with corresponding numbers are assembled, so that the weight of the whole liquid crystal display screen is higher due to the fact that the number of the backlight modules is more, the product cost is obviously increased, a plurality of manual assembly operations are added to the backlight modules, and the whole structure is not economical.

Disclosure of utility model

The utility model aims to solve the technical problem of reducing the number of backlight modules of the duplex screen, thereby reducing the cost and the assembly operation.

The technical problems to be solved by the utility model are realized by the following technical scheme:

In order to solve the technical problems, the utility model provides an economical L-shaped vehicle-mounted duplex screen, which comprises a backlight module, a liquid crystal display module and a cover plate which are sequentially overlapped from bottom to top, wherein a BM layer is arranged on the lower surface of the cover plate, an instrument screen hollowed-out part positioned on the left side and a central control screen hollowed-out part positioned on the right side are arranged on the BM layer, the liquid crystal display module comprises an array substrate arranged above the backlight module and a color film substrate arranged above the array substrate, TBN wiring and patterns are arranged on the array substrate positioned on the instrument screen hollowed-out part, TFT wiring and patterns are arranged on the array substrate positioned on the central control screen hollowed-out part, and the backlight module is a regional dimming backlight module.

As a preferred implementation mode of the economical L-shaped vehicle-mounted duplex screen, the array substrate is longer than the color film substrate and extends outwards, a bulge is arranged at the edge of the upper surface of the outwards extending array substrate, buffer glue is arranged between the bulge and the color film substrate on the upper surface of the array substrate, and the buffer glue is abutted against the cover plate.

As a preferable implementation mode of the economical L-shaped vehicle-mounted duplex screen, the upper surface of the bulge is flush with the upper surface of the color film substrate.

As a preferable implementation mode of the economical L-shaped vehicle-mounted duplex screen, the buffer glue is silicone glue.

As a preferred implementation mode of the economical L-shaped vehicle-mounted duplex screen, a rounding angle is arranged between the bulge and the array substrate.

As a preferable implementation mode of the economical L-shaped vehicle-mounted duplex screen, the upper surface of the array substrate and the side surfaces of the protrusions are rough surfaces.

As a preferred implementation mode of the economical L-shaped vehicle-mounted duplex screen, an FPC is bound on the upper surface of the array substrate at the extending position, and the FPC comprises a substrate layer, a circuit layer arranged on the upper surface of the substrate layer and a metal heat dissipation layer arranged on the lower surface of the substrate layer.

As a preferred implementation mode of the economic L-shaped vehicle-mounted duplex screen, the FPC further comprises at least one perforation penetrating through the base material layer, the circuit layer and the metal heat dissipation layer, and a heat conduction layer in contact with the circuit layer and the metal heat dissipation layer is arranged on the inner wall of the perforation.

As a preferred implementation mode of the economical L-shaped vehicle-mounted duplex screen, a heat conductor connected with an external heat conducting structure is arranged in the through hole, and the heat conductor is in contact with the heat conducting layer.

As a preferred implementation mode of the economical L-shaped vehicle-mounted duplex screen, the structure of the metal heat dissipation layer is a net structure, a strip structure, a wavy structure or a honeycomb structure.

The utility model has the following beneficial effects:

Because be provided with TBN on the array substrate that is located instrument screen department and walk line and pattern, be provided with TFT on the array substrate that is located well accuse screen department and walk line and pattern for there are TBN screen and TFT screen simultaneously in a glass, compare with traditional duplex screen or triplex screen, its structure is lighter, and the cost is more advantageous. And because the backlight module is the regional dimming backlight module, the two screens can be lightened only by one backlight module, and because the quantity of the backlight modules is small, the weight of the whole liquid crystal display screen is lower, the product cost is obviously increased and reduced, and only one backlight module also reduces a plurality of manual assembly operations, so that the whole liquid crystal display screen is more economical.

Drawings

In order to more clearly illustrate the solution of the present application, a brief description will be given below of the drawings required for the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an economical L-shaped vehicle-mounted duplex screen.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic diagram of the BM layer in fig. 2.

Fig. 4 is a schematic structural diagram of embodiment 2.

Fig. 5 is a schematic structural diagram of embodiment 3.

Reference numerals illustrate:

A backlight module 1; a cover plate 2BM layer 3; the instrument screen hollowed-out part 31; a central screen hollowed-out part 32; an array substrate 4; a color film substrate 5;

A protrusion 41; a buffer glue 6;

an FPC7; a base material layer 71; a circuit layer 72; a metal heat dissipation layer 73; perforations 74.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The utility model provides an economical L-shaped vehicle-mounted duplex screen which comprises a backlight module, a liquid crystal display module and a cover plate, wherein the backlight module, the liquid crystal display module and the cover plate are sequentially overlapped from bottom to top, a BM layer is arranged on the lower surface of the cover plate, an instrument screen hollowed-out part positioned on the left side and a central control screen hollowed-out part positioned on the right side are arranged on the BM layer, the liquid crystal display module comprises an array substrate arranged above the backlight module and a color film substrate arranged above the array substrate, TBN wiring and patterns are arranged on the array substrate positioned on the instrument screen hollowed-out part, TFT wiring and patterns are arranged on the array substrate positioned on the central control screen hollowed-out part, and the backlight module is a regional dimming backlight module.

Because be provided with TBN on the array substrate that is located instrument screen department and walk line and pattern, be provided with TFT on the array substrate that is located well accuse screen department and walk line and pattern for there are TBN screen and TFT screen simultaneously in a glass, compare with traditional duplex screen or triplex screen, its structure is lighter, and the cost is more advantageous. And because the backlight module is the regional dimming backlight module, the two screens can be lightened only by one backlight module, and because the quantity of the backlight modules is small, the weight of the whole liquid crystal display screen is lower, the product cost is obviously increased and reduced, and only one backlight module also reduces a plurality of manual assembly operations, so that the whole liquid crystal display screen is more economical.

In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings. The present utility model is described in detail below with reference to the drawings and the embodiments, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Example 1

Referring to fig. 1 to 3, an economical L-shaped vehicle-mounted dual screen provided by the utility model comprises a backlight module 1, a liquid crystal display module and a cover plate 2 which are sequentially overlapped from bottom to top, wherein a BM layer 3 is arranged on the lower surface of the cover plate 2, a meter screen hollowed-out part 31 positioned on the left side and a central control screen hollowed-out part 32 positioned on the right side are arranged on the BM layer 3, the liquid crystal display module comprises an array substrate 4 arranged above the backlight module 1 and a color film substrate 5 arranged above the array substrate 4, the color film substrate 5 is arranged below the cover plate 2 and the BM layer 3, a TBN wiring and a TBN pattern are arranged on the array substrate 4 positioned on the meter screen hollowed-out part 31, a TFT wiring and a TFT pattern are arranged on the array substrate 4 positioned on the central control screen hollowed-out part 32, and the backlight module 1 is a regional dimming backlight module.

Example 2

Referring to fig. 4, in this embodiment, as a further optimization scheme of embodiment 1, the array substrate 4 is longer than the color film substrate 5 and extends outwards, a protrusion 41 is disposed at an edge of an upper surface of the outwards extending array substrate 4, and a buffer glue 6 is disposed between the protrusion 41 and the color film substrate 5 on the upper surface of the array substrate 4, and the buffer glue 6 abuts against the cover plate 2. Since the edge of the array substrate 4 is provided with the protrusion 41, the protrusion 41 can limit the flow of the cushion rubber 6, so that the form of the cushion rubber 6 is easy to control, and the phenomenon of glue overflow or insufficient dispensing can not occur. Thereby avoiding the liquid crystal display screen from being unable to be assembled with the casing. And further, the problems of poor buffering effect and easiness in cracking of the array substrate 4 caused by insufficient dispensing are avoided, and abnormal display of the liquid crystal display screen is prevented.

Further, the upper surface of the protrusion 41 is flush with the upper surface of the color film substrate 5 to further limit the flow of the cushion gum 6, so that the shape of the cushion gum 6 is easy to control, and no phenomenon of glue overflow or insufficient dispensing occurs.

Further, the cushion gum 6 is silicone gum.

Further, a rounded corner is arranged between the bulge 41 and the array substrate 4, so that the buffer glue 6 is easier to fill up the space between the bulge 41 on the upper surface of the array substrate 4 and the color film substrate 5, and the bulge 41 with the rounded corner can enable the buffer glue 6 to flow into the space between the bulge 41 on the upper surface of the array substrate 4 and the color film substrate 5 more smoothly, so that bubbles are not easy to occur.

Further, the upper surface of the array substrate 4 and the side surfaces of the protrusions 41 are roughened surfaces to enhance the fixing effect of the cushion rubber 6.

Further, the rough surface is frosted or diamond knurled so as to further improve the fixing effect of the cushion rubber 6.

Example 3

Referring to fig. 5, as a further optimization scheme of embodiment 2, in this embodiment, an FPC7 is bonded to the upper surface of the array substrate 4 located at the protruding portion, where the FPC7 includes a substrate layer 71, a circuit layer 72 disposed on the upper surface of the substrate layer 71, and a metal heat dissipation layer 73 disposed on the lower surface of the substrate layer 71, and the manner of disposing the circuit layer 72 and the metal heat dissipation layer 73 may be that the circuit layer 72 and the metal heat dissipation layer 73 are respectively adhered to the substrate layer 71 through double-sided tape. Because the thickness of the substrate layer 71 is thinner, heat on the FPC7 can be diffused to the metal heat dissipation layer 73 through the substrate layer 71, and the metal heat dissipation layer 73 can effectively increase the heat dissipation area of the FPC7, and plays a role in uniform heat dissipation, so that the heat dissipation efficiency of the FPC7 is improved. The substrate layer 71 may be any one of polyimide, polyester, polysulfone or polytetrafluoroethylene, the double sided tape may be any one of an acrylic adhesive layer or an epoxy adhesive layer, and the metal heat dissipation layer 73 may be a copper foil layer.

Further, the FPC7 further includes at least one through hole 74 penetrating through the base layer 71, the circuit layer 72 and the metal heat dissipation layer 73, wherein a heat conduction layer contacting the circuit layer 72 and the metal heat dissipation layer 73 is disposed on an inner wall of the through hole 74, and the circuit layer 72 and the metal heat dissipation layer 73 on two sides of the base layer 71 can be electrically connected to perform a good heat conduction function by using a good heat conduction property at the through hole 74, and the heat conduction layer can provide a heat conduction function to achieve a good heat dissipation effect. The heat conducting layer can be a copper adhesive conductive ink layer.

Further, a heat conductor connected to the external heat conducting structure is disposed in the through hole 74, and the heat conductor is connected to the external heat conducting structure from one side of the circuit layer 72 and is also in contact with the heat conducting layer in the through hole 74, so that the circuit layer 72 and the metal heat dissipation layer 73 can be connected to the external heat conducting structure through the through hole 74, and heat in the FPC7 is diffused to the external heat conducting structure through the heat conductor in the through hole 74, so as to further improve the heat dissipation efficiency of the FPC 7. Preferably, in order that the perforation 74 may be connected to an external heat conductive structure, the perforation 74 is provided at an edge position of the FPC 7.

Further, the metal heat dissipation layer 73 has a uniform heat dissipation structure, and the structure thereof may be any one of a mesh structure, a strip structure, a wave structure, and a honeycomb structure, and the heat dissipation effect can be better improved by the uniform heat dissipation structure.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It is apparent that the above-described embodiments are only some embodiments of the present application, but not all embodiments, and the preferred embodiments of the present application are shown in the drawings, which do not limit the scope of the patent claims. This application may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the application are directly or indirectly applied to other related technical fields, and are also within the scope of the application.

Claims (10)

1. The utility model provides an on-vehicle pair screen of economical L type, its characterized in that includes from bottom to top in proper order the backlight unit, liquid crystal display module and the apron that the stack set up, the lower surface of apron is provided with the BM layer, set up on the BM layer and be located left instrument screen fretwork portion and be located the well accuse screen fretwork portion on right side, liquid crystal display module is including the array substrate who locates backlight unit top and the various membrane base plate of locating the array substrate top, is located be provided with TBN on the array substrate on the instrument screen fretwork portion and walk line and pattern, be located be provided with TFT on the array substrate of well accuse screen fretwork portion and walk line and pattern, backlight unit is regional dimming backlight unit.

2. The economical L-shaped vehicle-mounted duplex screen according to claim 1, wherein the array substrate is longer than the color film substrate and extends outwards, a protrusion is arranged at the edge of the upper surface of the outwards extending array substrate, a buffer adhesive is arranged between the protrusion and the color film substrate on the upper surface of the array substrate, and the buffer adhesive is abutted to the cover plate.

3. The economical L-shaped vehicle-mounted duplex screen according to claim 2, wherein the upper surface of the protrusion is flush with the upper surface of the color film substrate.

4. The economical L-shaped vehicle-mounted duplex screen according to claim 2, wherein the cushion gum is silicone gum.

5. The economical L-shaped vehicle-mounted duplex screen according to claim 2, wherein a rounded corner is arranged between the protrusion and the array substrate.

6. The economical L-shaped vehicle-mounted dual screen of claim 2, wherein the upper surface of the array substrate and the sides of the protrusions are roughened surfaces.

7. The economical L-shaped vehicle-mounted dual screen of claim 2, wherein the upper surface of the array substrate located at the extension is bound with an FPC, the FPC comprising a base material layer, a circuit layer disposed on the upper surface of the base material layer, and a metal heat dissipation layer disposed on the lower surface of the base material layer.

8. The economical L-shaped vehicle-mounted duplex screen according to claim 7, wherein the FPC further comprises at least one perforation penetrating the base material layer, the circuit layer and the metal heat dissipation layer, and the inner wall of the perforation is provided with a heat conduction layer in contact with the circuit layer and the metal heat dissipation layer.

9. The economical L-shaped vehicle-mounted duplex screen according to claim 8, wherein a heat conductor connected to an external heat conducting structure is disposed within the perforations, the heat conductor being in contact with the heat conducting layer.

10. The economical L-shaped vehicle-mounted dual screen of claim 7, wherein the metallic heat dissipation layer has a mesh structure, a strip structure, a wave structure or a honeycomb structure.