TWI694281B - Display - Google Patents

Abstract

A display includes a backlight module and a cooling module. The cooling module includes a cooling member and a buffer member. The cooling member is substantially a sheet and is positioned at a lower surface of the backlight module. The buffer member is soft material with stickiness and elasticity. The buffer member is directly attached to the cooling member through stickiness to fix the cooling member to the backlight module.

Description

monitor

The invention relates to a display with a heat dissipation module.

With the development of science and technology, the light-emitting diode (LED) of the backlight module of the display is getting smaller and smaller, and the brightness is getting higher and higher. As a result, its heat source is more and more concentrated, and a point-shaped heat source is formed, which is not conducive to heat dissipation.

In view of this, it is necessary to provide a display with a heat dissipation module.

A display includes a backlight module. The display further includes a heat dissipation module. The heat dissipation module includes a heat dissipation element and a buffer element. The heat dissipation element is a sheet-shaped heat dissipation material. The heat dissipation element is disposed on the backlight module. The lower surface of the group, the buffer member is a soft material with self-adhesive and elasticity, and the buffer member is directly adhered to the heat sink by its own viscosity to fix the heat sink to the backlight module on.

In the above display, the buffering member directly adheres the heat dissipating member to the backlight module by virtue of its own adhesiveness, without using adhesive, which can effectively reduce the thickness of the display and reduce its cost. At the same time, the cushioning member is an elastic and soft material. Compared with the application of a foam layer to the backlight module by adhesive, the bonding is smoother, no bubbles are generated, and the display is avoided. Water ripples are generated and the buffering effect is better.

100, 200: display

11: Display panel

10: Backlight module

101: light guide plate

103: light source

105: reflector

106: Metal frame

107: bottom plate

108: side frame

109: Containment Department

20: Cooling module

21: heat sink

23: Cushion

FIG. 1 is a schematic partial cross-sectional view of a display in a first preferred embodiment of the present invention.

FIG. 2 is a schematic structural diagram of the heat dissipation module in the display shown in FIG. 1.

FIG. 3 is a schematic structural view of the heat dissipation module in the display shown in FIG. 1 from another angle.

4 is a schematic partial cross-sectional view of a display in a second preferred embodiment of the invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terminology used in the description of the present invention herein is for the purpose of describing specific embodiments, and is not intended to limit the present invention. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

Please refer to FIG. 1, a first preferred embodiment of the present invention provides a display 100. The display 100 may be a display screen of an electronic device such as a mobile phone, a computer, a TV or a game console. The display 100 at least includes a display panel 11, a backlight module 10 and a heat dissipation module 20.

The display panel 11 may be a liquid crystal display panel. The backlight module 10 is disposed below the display panel 11. The backlight module 10 includes a light guide plate 101, a light source 103, and a reflective sheet 105. The light source 103 is arranged adjacent to the light guide plate 101. In this embodiment, the light source 103 is a point light source, for example As a light emitting diode, the light source 103 generates a point-shaped heat source. The reflective sheet 105 is directly disposed on a surface of the light guide plate 101 away from the display panel 11.

Please refer to FIG. 2 and FIG. 3 together. FIG. 2 is a schematic structural side view of the heat dissipation module 20, and FIG. 3 is a schematic structural top view of the heat dissipation module 20. The heat dissipation module 20 includes a heat dissipation component 21 and a buffer component 23. The heat dissipation member 21 is in the shape of a sheet. The heat dissipation member 21 is directly disposed on a surface of the reflective sheet 105 away from the light guide plate 101 and corresponding to the light source 103. In other words, the heat dissipation member 21 is disposed on the side of the light source 103 away from the display panel 11. In this embodiment, the size of the heat sink 21 is smaller than the size of the reflective sheet 105. Of course, in other embodiments, the shape and size of the heat sink 21 can also be adjusted, as long as the area of the heat sink 21 is larger than the area of the light source 103.

In this embodiment, the heat sink 21 is a sheet-shaped heat sink material. In this way, the heat dissipation member 21 can diffuse the heat of the point heat source generated by the light source 103 to achieve temperature reduction, thereby solving the heat dissipation problem of the point heat source. In order to improve the heat dissipation performance of the heat dissipation member 21, the heat dissipation member 21 may be made of a heat dissipation material with better thermal conductivity such as graphite sheet or copper foil. Preferably, the thickness of the heat dissipation member 21 ranges from 0.01 mm to 0.2 mm.

The buffer member 23 is generally in the shape of a sheet. The buffer member 23 is directly disposed on the surface of the heat dissipating member 21 and the reflective sheet 105 away from the light guide plate 101. In this embodiment, the shape and size of the buffer 23 substantially match the display panel 11. The buffer member 23 is made of a soft material with slight viscosity and elasticity. In this way, the buffer member 23 is adhered to the surface of the heat dissipating member 21 and the reflective sheet 105 away from the light guide plate 101 by its adhesive effect. For example, when the size of the heat sink 21 is smaller than the size of the reflective sheet 105, the portion of the buffer member 23 corresponding to the heat sink 21 is directly pasted to the surface of the heat sink 21 away from the light guide plate 101 The other parts are directly in contact with the surface of the reflective sheet 105 away from the light guide plate 101.

In this embodiment, the buffer member 23 is a self-adhesive foam, such as acrylic foam. In this embodiment, the buffer 23 has a viscosity ranging from 0.01 N/25 mm to 3 N/25 mm, that is, the force value required when the buffer 23 having a standard length of 25 mm is torn off.

It can be understood that, in this embodiment, the buffer member 23 directly adheres the heat dissipating member 21 to the reflective sheet 105 by virtue of its own viscosity, and is disposed corresponding to the light source 103. In this way, the point-shaped heat source generated by the light source 103 can be uniformly dissipated, and no additional glue is needed, which can effectively reduce the thickness of the display 100 and reduce its manufacturing cost. In addition, due to the micro-adhesive characteristic of the buffer member 23, the buffer member 23 can be easily torn off from the backlight module 10, so the rework is easy. At the same time, the buffer member 23 is an elastic and soft material. Compared with the foam layer attached to the heat dissipating member 21 and the reflective sheet 105 by adhesive, the bonding is smoother and no bubbles are generated. , To avoid water ripples on the display 100, and the buffer effect is better. Secondly, the thermal expansion and contraction of the buffer member 23 is not obvious, so the thermal expansion of the reflective sheet 105 is not limited.

Please refer to FIG. 4, a second preferred embodiment of the present invention provides a display 200. The display 200 includes a display panel 11, a backlight module 10 and a heat dissipation module 20. It can be understood that the difference between the display 200 and the display 100 is that the display 200 further includes a metal frame 106. The metal frame 106 includes a bottom plate 107 and side frames 108. The bottom plate 107 is directly disposed on a surface of the reflective sheet 105 away from the light guide plate 101. The side frame 108 is provided on the peripheral edge of the bottom plate 107, is substantially perpendicular to the bottom plate 107, and extends from the peripheral edge of the bottom plate 107. In this way, the side frame 108 and the bottom plate 107 together define an accommodating portion 109 for accommodating the light guide plate 101, the light source 103 and the reflective sheet 105.

In this embodiment, the heat dissipation member 21 is directly disposed on a surface of the bottom plate 107 away from the reflective sheet 105. The buffer member 23 is pasted on the surface of the heat sink 21 and the bottom plate 107 away from the reflective sheet 105. For example, the portion of the buffer member 23 corresponding to the heat dissipation member 21 is directly in contact with the surface of the heat dissipation member 21 away from the reflection sheet 105, and the other portion is directly in contact with the bottom plate 107 away from the reflection sheet 105 Pasted on the surface.

Obviously, in the display 100/200 of the present invention, the buffer member 23 directly adheres the heat dissipating member 21 to a surface of the reflective sheet 105 or the metal frame 106 away from the light guide plate 101 by its own adhesiveness No need to use adhesive, which can effectively reduce the thickness of the display 100/200 and reduce its cost. At the same time, the cushioning member 23 is an elastic and soft material. Compared with applying a foam layer to the backlight module 10 by adhesive, the bonding is smoother, and no bubbles are generated, which avoids all The display 100/200 produces water ripples, and the buffering effect is better.

The above embodiments are only used to illustrate the technical solutions of the present invention but not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those with ordinary knowledge in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced Without departing from the spirit and essence of the technical solution of the present invention.

100: display

11: Display panel

10: Backlight module

101: light guide plate

103: light source

105: reflector

20: Cooling module

21: heat sink

23: Cushion

Claims (3)

A display includes a backlight module. The improvement is that the display further includes a heat dissipation module. The heat dissipation module includes a heat dissipation element and a buffer element. The heat dissipation element is a sheet-shaped heat dissipation material. On the lower surface of the backlight module, the buffer member is a soft material with self-adhesive and elasticity, and the buffer member is directly adhered to the heat dissipation member by virtue of its own viscosity to fix the heat dissipation member to the On the backlight module, wherein the display further includes a display panel, the backlight module is disposed below the display panel, the backlight module includes a light guide plate, a light source, and a reflective sheet, the light source and the light guide plate Adjacent to each other, the reflective sheet is directly disposed on a surface of the light guide plate away from the display panel, the heat dissipation member is graphite sheet or copper foil, the display further includes a metal frame, and the metal frame includes a bottom plate And a side frame, the bottom plate is directly disposed on a surface of the reflective sheet away from the light guide plate, the side frame is provided on a peripheral edge of the bottom plate, is perpendicular to the bottom plate, and extends from the peripheral edge of the bottom plate, The side frame and the bottom plate jointly enclose an accommodating portion for accommodating the light guide plate, the light source, and the reflection sheet, and the heat dissipation element is directly disposed on a surface of the bottom plate away from the light guide plate, and Corresponding to the light source and part of the light guide plate, the buffer element covers the heat dissipation element and is directly arranged on the surface of the bottom plate away from the light guide plate where the heat dissipation element is not provided. The display according to item 1 of the patent application scope, wherein the buffer member is a self-adhesive foam, and the shape and size of the buffer member match the display panel. The display according to item 2 of the patent application scope, wherein the buffer member directly adheres the heat dissipation member to the bottom plate by virtue of its own viscosity, and the portion of the buffer member corresponding to the heat dissipation member directly contacts the The surface of the heat dissipation member far away from the reflective sheet is pasted and contacted, and other parts are directly pasted and contacted with the surface of the bottom board away from the reflective sheet.

Images