KR100647653B1 - Apparatus for supporting flat display panel FPD with the same - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support device for supporting a flat panel display panel, and more particularly, to a support device having a heat dissipation element for dissipating heat emitted from a display panel, and an organic light emitting display device having the same.

According to an aspect of the present invention, there is provided a support device for a flat panel display panel for fixing a light emitting device that emits light, the heat generated from the light emitting device on one of an inner surface on which the light emitting device is fixed and an outer surface opposite to the inner surface. It is provided with a heat radiating element for radiating heat.

In addition, the organic light emitting display device according to the present invention comprises: a display panel in which a plurality of pixels for implementing an image are arranged; A support device for supporting the display panel; A heat dissipation element is provided to dissipate heat generated from the display panel, and the heat dissipation element is provided on one of an inner side of a support device adjacent to the display panel and an outer side facing the inner side.

Description

Apparatus for supporting flat display panel FPD with the same}

1 is a perspective view of a support device for a flat panel display panel having a heat dissipation device according to an embodiment of the present invention;

2 is a perspective view of a support device for a flat panel display panel having a heat dissipation device according to another embodiment of the present invention;

3 is a perspective view of an organic light emitting display device having a support device with a heat radiation element according to an embodiment of the present invention;

4 is a view illustrating a current density change with temperature in a conventional organic light emitting display device;

Explanation of symbols on the main parts of the drawings

10, 20, 100: support device 15, 25, 150: heat radiation element

200: organic EL panel 210: upper substrate

220: lower substrate

The present invention relates to a support device for supporting a flat panel display panel, and more particularly, to a flat panel display panel support device having a heat dissipation device for dissipating heat generated from a light emitting device, and an organic light emitting display having the same. Relates to a device.

The organic light emitting device is classified into an inorganic light emitting device and an organic light emitting device according to the type of light emitting compound of the organic layer formed between the anode electrode and the cathode electrode. The luminous efficiency is low, there is a disadvantage that the driving voltage is high. On the other hand, while the organic light emitting device has a high luminous efficiency and low voltage required to emit a light emitting compound, it has a short lifespan.

The organic light emitting device generates high temperature heat during driving. In order to prevent deterioration of the device, heat must be quickly dissipated. The short lifetime of the organic light emitting diode is due to the heat energy generated during driving. In the organic light emitting device, only about 5% of the electrical energy supplied to the organic material layer is used for light emission, and the remaining 95% is consumed as heat. Therefore, when a predetermined voltage is applied to the two electrodes, the anode electrode and the cathode electrode of the organic light emitting device, a large amount of heat is generated from the organic light emitting layer, and the generated heat causes deterioration of the device.

Conventionally, in order to dissipate heat emitted from an organic light emitting device, a nonvolatile oil having a high thermal conductivity is used in the device. However, in order to dissipate heat emitted from the device, there is a problem in that the organic material is deteriorated by the nonvolatile oil injected into the device and the life is greatly reduced.

Japanese Laid-Open Patent Publication No. 1999-73140 proposes an organic electroluminescent device having a heat radiation lifespan for radiating heat generated from an organic light emitting layer. The patent provides heat radiation holes in the frame for fixing the EL panel and heat radiation holes in the back plate to which the EL panel is bonded, thereby dissipating heat generated from the organic light emitting layer.

The present invention is to solve the problems of the prior art as described above, to provide a support device for a flat panel display panel with a heat radiation element for radiating heat generated from the light emitting element, and an organic light emitting display device having the same. Its purpose is to.

In order to achieve the above object, the present invention is a flat panel display panel support device for fixing a light emitting device for emitting light, wherein the light emitting device is fixed to one of the inner surface and the outer surface facing the inner surface; It is characterized by providing a support device for a flat panel display panel having a heat radiation element for radiating heat generated from the light emitting element.

The heat dissipation element is provided on at least a portion of an inner surface of the support device. The heat dissipation element is provided on at least a portion of an outer surface of the support device. The heat dissipation element is selected from a heat dissipation fan and a thermoelectric element.

In addition, the present invention provides a display panel comprising a plurality of pixels arranged to implement an image; A support device for supporting the display panel; And a heat dissipation element for dissipating heat generated from the display panel, wherein the heat dissipation element includes a flat panel display device provided on one of an inner surface of a support device adjacent to the display panel and an outer surface opposite to the inner surface. It is characterized by providing.

The display panel has an EL display panel.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view of a support device for an organic light emitting device according to an embodiment of the present invention.

Referring to FIG. 1, the support device 10 for an organic light emitting device according to the present invention has a structure in which a bracket is formed in a plate body having a size corresponding to a flat panel display panel to be supported, and one partition wall is opened. The support device 10 includes a heat dissipation element 15 on an inner surface of the bottom surface 11, that is, an outer surface of the bottom surface 11 that faces the flat display panel.

The support device 10 according to the embodiment of the present invention is for supporting an EL display panel as a flat panel display panel, and the heat dissipation element 15 is an organic field of the EL display panel supported by the support device 10. It is for dissipating heat generated from the light emitting device.

In one embodiment, the heat radiating element 15 is preferably provided with a heat radiating fan or a thermoelectric element. The heat dissipation element 15 is illustrated on the outer surface of the bottom surface 11 of the support device 10, but is provided on the outer surface of the side wall 12 of the support device 10 or the bottom surface 11 and the side wall All may be provided in the outer side surface of the 12.

Figure 2 shows a perspective view of a support device for an organic light emitting device according to another embodiment of the present invention.

Referring to FIG. 2, the support device for an organic light emitting device 20 according to another exemplary embodiment of the present invention has a bracket shape and is formed of a plate having a size corresponding to a flat panel display panel to be supported. Has a structure. The support device 20 includes a heat dissipation element 25 arranged on a surface in contact with the flat panel display panel.

The support device 20 according to another embodiment of the present invention is for supporting an EL display panel as a flat panel display panel, and the heat dissipation element 25 is organic in the EL display panel supported by the support device 20. It is for dissipating heat generated from the electroluminescent element.

In another embodiment, the heat dissipation element 25 is formed to be arranged on the inner side of the bottom surface 21 and the inner side of the side wall 22 of the support device 20, it is preferable to include a thermoelectric element. The heat dissipation element 25 is provided on the inner surface of the bottom surface 21 and the inner surface of the side wall 22 of the support device 20, but provided on the inner surface of the side wall 22 of the support device 20 Or may be partially provided on the inner side of the bottom face 21.

3 is a perspective view of an organic light emitting display device supported by a supporting device with a heat radiating element according to an exemplary embodiment of the present invention. 3 is a view illustrating an organic light emitting display device including a support device with a heat radiating element according to an embodiment.

Referring to FIG. 3, the organic light emitting display device of the present invention includes an EL display panel 200 and a support device 100 for supporting the EL display panel 200. FIG. In addition, the organic light emitting display device further includes a heat dissipation element 150 attached to an inner surface of the bottom surface 110 of the support device 100 and arranged between the EL display panel 200 and the support device 100. do.

The EL display panel 200 includes a lower substrate 210 and an encapsulation means for encapsulating the lower substrate 210, for example, the upper substrate 220. A plurality of pixels are arranged in a matrix form on the lower substrate 210, and each pixel includes an organic light emitting device and a thin film transistor as a driving device for driving the organic light emitting device.

The EL display panel 200 is supported by the support device 100, and the light emitted from the organic light emitting diode when the EL display panel 200 is driven is the EL display panel 200 and the support device 100. The heat is radiated by the heat radiating elements 150 arranged therebetween.

FIG. 4 is a view showing a relationship between temperature and current density in an organic light emitting display device having a supporting device without a conventional heat dissipation element. When the external bias of 4.6V is applied to the organic light emitting device, the current density with respect to temperature is shown.

Referring to FIG. 4, it can be seen that the current density of the organic light emitting display device is proportionally exponentially increased as the temperature increases. Therefore, in the present invention, since the heat dissipation element is provided in the support device, it is possible to dissipate heat generated from the organic light emitting element when the EL display panel is driven, thereby preventing deterioration of the organic film layer due to heat and improving lifespan. have.

The support device illustrated in FIG. 1 exemplarily has an open structure on one side, but is not limited thereto and may be applied to various types of support devices such as a frame structure.

In addition, the embodiment of the present invention exemplifies heat radiation from the organic light emitting layer by attaching a heat radiating element to a support device for fixing the organic light emitting display panel, but is not necessarily limited thereto. The same may be applied to a support device for fixing the same flat panel display panel to dissipate heat generated from the display panel.

By attaching a heat dissipation element to a support device for fixing the organic light emitting display panel according to the embodiment of the present invention as described above, the heat generated from the organic light emitting display panel is dissipated, Deterioration can be prevented and long life can be attained.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated.

Claims (9)

In the support device for a flat panel display panel for fixing a light emitting element for emitting light, The support device includes a heat dissipation element for dissipating heat generated from the light emitting element on one of an inner side surface to which the light emitting element is fixed and an outer side surface facing the inner side. Support device. The flat panel display panel support device of claim 1, wherein the heat dissipation element is provided on at least a portion of an inner surface of the support device. The flat panel display panel support device of claim 1, wherein the heat dissipation element is provided on at least a portion of an outer surface of the support device. The flat panel display panel support device of claim 1, wherein the heat dissipation element is selected from a heat dissipation fan and a thermoelectric element. A display panel in which a plurality of pixels for implementing an image are arranged; A support device for supporting the display panel; And a heat radiating element for radiating heat generated from the display panel. And the heat dissipation element is provided on one of an inner side surface of a support device adjacent to the display panel and an outer side surface facing the inner side surface. The flat panel display of claim 5, wherein the heat dissipation element is provided on an inner surface of the support device. The flat panel display of claim 5, wherein the heat dissipation element is provided on an outer surface of the support device. The flat panel display of claim 5, wherein the heat dissipation element is selected from a heat dissipation fan and a thermoelectric element. 6. A flat panel display according to claim 5, wherein the display panel comprises an EL display panel.

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