CN206863402U - A kind of display module - Google Patents

Abstract

The utility model discloses a display module, which comprises an upper metal frame, a backlight source and a display panel arranged in the upper metal frame, and the upper metal frame includes a top surface with a window opening and four side surfaces; the A drive IC is bound on the side of the display panel close to the top surface of the upper metal frame; a heat conduction layer is arranged on the inner side of the top surface of the upper metal frame. The display module can evenly conduct the heat generated by the driving IC to the surface of the upper metal frame, which is beneficial to improving the heat dissipation efficiency of the upper metal frame.

Description

a display module

technical field

The utility model relates to a display technology, in particular to a display module.

Background technique

With the vigorous development of the automobile industry, the size requirements of European car manufacturers for vehicle display modules are getting larger and larger, and the number and power consumption of driver ICs bound to LCD panels are also increasing, resulting in more heat generation of driver ICs. It is becoming more and more obvious that an excessively high temperature will easily lead to functional degradation and lifetime attenuation of the driver IC. Therefore, the problem of heat dissipation of the driver IC has attracted widespread attention.

Utility model content

In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a display module. The display module can evenly conduct the heat generated by the driving IC to the surface of the upper metal frame, which is beneficial to improving the heat dissipation efficiency of the upper metal frame.

The technical problem to be solved by the utility model is realized through the following technical solutions:

A display module, comprising an upper metal frame, a backlight source and a display panel arranged in the upper metal frame, the upper metal frame includes a top surface with a window opening and four sides; the display panel is close to the A drive IC is bound on one side of the top surface of the upper metal frame; a heat conduction layer is arranged on the inner side of the top surface of the upper metal frame.

Further, the heat conduction layer is one of graphite sheet, nano-carbon copper foil, nano-aluminum foil or heat pipe.

Further, the heat pipe includes a heat absorption end and a heat dissipation end, the heat absorption end is arranged at a position corresponding to the driver IC, and the heat dissipation end is arranged at a position away from the driver IC.

Further, the display panel includes an upper substrate and a lower substrate oppositely arranged, and a liquid crystal layer is arranged between the upper substrate and the lower substrate; the driving IC is bound on the lower substrate close to the top surface of the upper metal frame on one side.

Further, the backlight includes a lower metal frame, a light guide plate arranged in the lower metal frame, and a light bar arranged on the light incident surface of the light guide plate; the side surface of the lower metal frame and the upper metal frame The sides of the shelf snap together.

Further, at least one optical film is provided on the light incident surface of the light guide plate.

Further, a reflective sheet is provided on the side of the light guide plate away from the light-emitting surface.

Further, a glue frame is provided between the light guide plate and the lower metal frame, and a light-shielding sheet is arranged on the glue frame, and the display panel is pasted together with the backlight through the light-shielding sheet.

The utility model has the following beneficial effects: the display module is provided with a layer of heat conduction layer inside the top surface of the upper metal frame, which can evenly conduct the heat generated by the drive IC to the surface of the upper metal frame, not only Li Yun improves the heat dissipation efficiency of the upper metal frame, and can prevent the heat generated by the driver IC from accumulating in a local area, so as to avoid the malfunction of the display module.

Description of drawings

Fig. 1 is the schematic diagram of the display module provided by the utility model;

FIG. 2 is a schematic diagram of a heat conducting layer of the backlight shown in FIG. 1;

Fig. 3 is a schematic diagram 1 of the heat pipe of the backlight shown in Fig. 1;

FIG. 4 is a second schematic diagram of the heat pipe of the backlight shown in FIG. 1 .

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

As shown in Figures 1 and 2, a display module includes an upper metal frame 1 and a backlight source and a display panel arranged in the upper metal frame 1, and the upper metal frame 1 includes a top surface with a window opening and Four sides; the display panel includes an upper substrate 21 and a lower substrate 22 oppositely arranged, and a liquid crystal layer is arranged between the upper substrate 21 and the lower substrate 22; the backlight source includes a lower metal frame 31, which is arranged on the The light guide plate 32 inside the lower metal frame 31 , and the light bar 33 arranged on the light incident surface of the light guide plate 32 ;

A heat conducting layer 4 is arranged on the inside of the top surface of the upper metal frame 1 .

The display module is provided with a layer of heat conduction layer 4 inside the top surface of the upper metal frame 1, which can evenly conduct the heat generated by the driver IC 23 to the surface of the upper metal frame 1. The heat dissipation efficiency of the above-mentioned metal frame 1 can also prevent the heat generated by the driver IC 23 from accumulating in a local area, so as to avoid the malfunction of the display module.

The heat conduction layer 4 is preferably a material with good planar heat conduction performance, such as one of graphite sheet, nano-carbon copper foil, nano-aluminum foil, or a thinner heat pipe.

If the heat-conducting layer 4 is a heat-conducting pipe, as shown in Figures 3 and 4, the heat-conducting pipe includes heat-absorbing ends and heat-dissipating ends respectively located at both ends, or includes a heat-absorbing end located in the middle and heat-dissipating ends at both ends; The heat-absorbing end is arranged at a position corresponding to the driver IC 23 , and the heat-dissipating end is arranged at a position away from the driver IC 23 .

The lower substrate 22 of the display panel is provided with a heat sink 5 on the side away from the driver IC 23, and dissipates the heat generated by the driver IC 23 from the back; the lower substrate 22 of the display panel is close to the A main screen FPC 24 is arranged on one side of the driver IC 23 . Preferably, the heat sink 5 is extended and pasted on the main screen FPC 24 to further increase the heat dissipation area of the heat sink 5 .

The heat sink 5 is preferably a graphite sheet with good planar thermal conductivity.

At least one optical film 34 is provided on the light incident surface of the light guide plate 32. In this embodiment, a diffusion film, a lower light enhancement film and an upper light enhancement film are sequentially provided on the light exit surface of the light guide plate 32. Of course, the optical The quantity and type of the film 34 can be determined according to the requirements, and should not be limited thereto; a reflective sheet 35 is arranged on the side of the light guide plate 32 away from the light-emitting surface; There is a glue frame 36 on which a light-shielding sheet 37 is arranged, and the display panel is pasted together with the backlight through the light-shielding sheet 37 .

The above-mentioned embodiments only express the implementation manner of the present utility model, and its description is comparatively specific and detailed, but can not therefore be interpreted as the restriction to the patent scope of the present utility model, as long as adopt the form of equal replacement or equivalent transformation to obtain All technical solutions should fall within the protection scope of the present utility model.

Claims (8)

1. A display module, comprising an upper metal frame and a backlight and a display panel arranged in the upper metal frame, the upper metal frame includes a top surface and four sides with a window opening; the display panel is close to A driver IC is bound on one side of the top surface of the upper metal frame; the feature is that: a heat conduction layer is arranged on the inner side of the top surface of the upper metal frame. 2. The display module according to claim 1, wherein the heat conduction layer is one of graphite sheet, nano-carbon copper foil, nano-aluminum foil or heat pipe. 3. The display module according to claim 2, wherein the heat pipe includes a heat-absorbing end and a heat-dissipating end, the heat-absorbing end is arranged at a position corresponding to the driver IC, and the heat-dissipating end Set at a position away from the driver IC. 4. The display module according to claim 1, wherein the display panel comprises an upper substrate and a lower substrate oppositely arranged, and a liquid crystal layer is arranged between the upper substrate and the lower substrate; fixed on the side of the lower substrate close to the top surface of the upper metal frame. 5. The display module according to claim 1, wherein the backlight source comprises a lower metal frame, a light guide plate arranged in the lower metal frame, and a lamp arranged on the incident surface of the light guide plate strip; the side of the lower metal frame is buckled with the side of the upper metal frame. 6. The display module according to claim 5, wherein at least one optical film is disposed on the light incident surface of the light guide plate. 7. The display module according to claim 5, wherein a reflective sheet is arranged on the side of the light guide plate away from the light-emitting surface. 8. The display module according to claim 5, characterized in that: a glue frame is arranged between the light guide plate and the lower metal frame, and a light-shielding sheet is arranged on the glue frame, and the display panel passes through the The shading sheet and the backlight are pasted together.