CN-224234099-U - Backlight module

CN224234099UCN 224234099 UCN224234099 UCN 224234099UCN-224234099-U

Abstract

The embodiment of the application provides a backlight module. The backlight module comprises a light emitting device, wherein the light emitting device comprises a first support, a first light emitting element, a heat insulation layer and a quantum dot device, the first light emitting element is arranged on the first support, and the heat insulation layer is arranged between the first light emitting element and the quantum dot device. According to the light-emitting device provided by the embodiment of the application, the heat insulation layer is arranged between the first light-emitting element and the quantum dot device, so that the influence of heat generated by the first light-emitting element on the quantum dot device can be isolated or reduced by using the heat insulation layer, and the service life of the quantum dot device can be prolonged, the color gamut and the service life of a backlight module comprising the light-emitting device can be improved, and the display quality and the reliability of a display device are further improved.

Inventors

YAO LIXIAO
LI JIANLIN

Assignees

惠州视维新技术有限公司

Dates

Publication Date: 20260512
Application Date: 20250408

Claims (8)

1. A backlight module, comprising: The light-emitting device comprises a first bracket, a first light-emitting element, a heat insulation layer and a quantum dot device, wherein the first light-emitting element is arranged on the first bracket, and the heat insulation layer is arranged between the first light-emitting element and the quantum dot device; The second light-emitting component comprises a second bracket, a second light-emitting element and a fluorescent glue layer, wherein the second light-emitting element is arranged on the second bracket, and the fluorescent glue layer is arranged on the light-emitting side of the second light-emitting element; Wherein the light emitting device is used for displaying a low-brightness picture, and the second light emitting component is used for displaying a high-brightness picture.
2. A backlight module according to claim 1, wherein the heat insulating layer is made of aerogel and/or, The upper surface and/or the lower surface of the heat insulation layer is provided with a concave-convex structure to diffuse light, and/or, A first diffusion film is arranged between the quantum dot device and the heat insulation layer, and/or, And a second diffusion film is arranged on one side of the quantum dot device, which is away from the heat insulation layer.
3. The backlight module of claim 1, wherein the quantum dot device comprises a first cover plate and a second cover plate which are arranged oppositely, and a quantum dot adhesive layer arranged between the first cover plate and the second cover plate, and/or, The first support comprises a first bottom plate and a first side plate which are connected, a first accommodating space is defined by the first bottom plate and the first side plate together, the light-emitting device is arranged in the first accommodating space, the heat insulation layer is arranged on the light-emitting device and the first side plate, and the heat insulation layer covers the upper surface of the light-emitting device.
4. A backlight module according to claim 1, wherein the first light emitting element is an LED chip, and/or, The first light-emitting element comprises a first body, a first pin and a second pin, wherein the first pin and the second pin are connected with the first body, a first connecting piece and a second connecting piece are arranged on the first support at intervals, the first pin is electrically connected with the first connecting piece, and the second pin is electrically connected with the second connecting piece.
5. A backlight module according to claim 1, wherein the second light emitting element is an LED chip, and/or, The second light-emitting element comprises a second body, a third pin and a fourth pin, wherein the third pin and the fourth pin are connected with the second body, a third connecting piece and a fourth connecting piece are arranged on the first support at intervals, the third pin is electrically connected with the third connecting piece, and the fourth pin is electrically connected with the fourth connecting piece.
6. The backlight module according to claim 5, wherein the second bracket comprises a second bottom plate and a second side plate which are connected, a second accommodating space is defined by the second bottom plate and the second side plate together, the fluorescent glue layer and the second light-emitting component are both arranged in the second accommodating space, and the upper surface of the fluorescent glue layer is flush with or lower than the top surface of the second side plate.
7. A backlight module according to claim 5, wherein a third diffusion film is arranged between the fluorescent glue layer and the second light-emitting element, and/or, And a fourth diffusion film is arranged on one side of the fluorescent glue layer, which is away from the second light-emitting element.
8. A backlight module according to claim 5, further comprising a support plate, wherein the light emitting device and the second light emitting member are both disposed on the support plate; The backlight module comprises a support plate, a plurality of light emitting devices, a plurality of second light emitting components, a plurality of light emitting devices and a plurality of second light emitting components, wherein the light emitting devices and the second light emitting components are arranged in a plurality of rows in a first direction on the support plate, the light emitting devices and the second light emitting components are alternately arranged in each row, and the light emitting devices and the second light emitting components are alternately arranged in each row.

Description

Backlight module Technical Field The present application relates to the field of display, and in particular, to a light emitting device and a backlight module. Background At present, with the rapid development of technology, display devices are needed in more and more occasions from small-sized calculators, displays, household liquid crystal televisions, various advertising machines to large-sized spliced display screens in the life of people, and the display devices with high brightness, high brightness uniformity, high reliability and high color gamut are demands of users, especially the demands of users with special demands on image quality, such as advertisements, film and television display, and the like, and are also the targets of enterprises to meet the demands of users. The quantum dot material has the characteristics of wide excitation spectrum, narrow emission spectrum, high color purity and good light stability, and can be applied to display equipment, so that the color gamut of the equipment can be effectively improved, and the display effect of the equipment is more vivid and attractive. However, since the quantum dot material is disposed close to the LED light source, the LED light source may increase in temperature during use of the display device, and the high temperature may affect the service life of the quantum dot material, thereby causing a decrease in reliability of the display device. Disclosure of utility model Based on the above, the embodiment of the application provides a light emitting device and a backlight module. In a first aspect, an embodiment of the present application provides a light emitting device, including a first support, a first light emitting element, a thermal insulation layer, and a quantum dot device, where the first light emitting element is mounted on the first support, and the thermal insulation layer is disposed between the first light emitting element and the quantum dot device. In some embodiments, the insulating layer is an aerogel, and/or, The upper surface and/or the lower surface of the heat insulation layer is provided with a concave-convex structure to diffuse light, and/or, A first diffusion film is arranged between the quantum dot device and the heat insulation layer, and/or, And a second diffusion film is arranged on one side of the quantum dot device, which is away from the heat insulation layer. In some embodiments, the quantum dot device includes first and second cover plates disposed opposite each other, a quantum dot glue layer disposed between the first and second cover plates, and/or, The first support comprises a first bottom plate and a first side plate which are connected, a first accommodating space is defined by the first bottom plate and the first side plate together, the light-emitting device is arranged in the first accommodating space, the heat insulation layer is arranged on the light-emitting device and the first side plate, and the heat insulation layer covers the upper surface of the light-emitting device. In some embodiments, the first light emitting element is an LED chip, and/or, The first light-emitting element comprises a first body, a first pin and a second pin, wherein the first pin and the second pin are connected with the first body, a first connecting piece and a second connecting piece are arranged on the first support at intervals, the first pin is electrically connected with the first connecting piece, and the second pin is electrically connected with the second connecting piece. In a second aspect, an embodiment of the present application provides a backlight module including the light emitting device described above. In some embodiments, the backlight module further includes a second light emitting component, where the second light emitting component includes a second bracket, a second light emitting element, and a fluorescent glue layer, where the second light emitting element is mounted on the second bracket, and the fluorescent glue layer is disposed on a light emitting side of the second light emitting element. In some embodiments, the second light emitting element is an LED chip, and/or, The second light-emitting element comprises a second body, a third pin and a fourth pin, wherein the third pin and the fourth pin are connected with the second body, a third connecting piece and a fourth connecting piece are arranged on the first support at intervals, the third pin is electrically connected with the third connecting piece, and the fourth pin is electrically connected with the fourth connecting piece. In some embodiments, the second bracket includes a second bottom plate and a second side plate that are connected, the second bottom plate and the second side plate jointly enclose a second accommodating space, the fluorescent glue layer and the second light-emitting component are both disposed in the second accommodating space, and the upper surface of the fluorescent glue layer is flush with or lower than the