CN-115868036-B - Display device

Abstract

A display device is provided that includes a liquid crystal panel, a substrate disposed below the liquid crystal panel, and a reflective sheet having a hole disposed therein and disposed on a first side of the substrate. The substrate may include at least one power feeding portion and at least one antistatic portion. The light source module may be disposed in an area defined by the hole of the reflective sheet on the first side of the substrate. The light source module may be provided with a light emitting diode and an insulating dome covering the light emitting diode such that at least one power feeding portion is disposed on the first side of the substrate and contacts the light emitting diode of the light source module, and at least one antistatic portion may be disposed within an area defined by the hole of the reflective sheet.

Inventors

• ZHANG HEJUN
• LI QIXUN

Assignees

• 三星电子株式会社

Dates

Publication Date

20260505

Application Date

20210308

Priority Date

20201023

Claims (14)

1. 1.A display device, comprising: A liquid crystal panel; a substrate disposed under the liquid crystal panel, the substrate including a conductive layer including an antistatic line configured to guide charges generated by electrostatic discharge to flow to ground; At least one power feeding portion provided on the substrate; at least one antistatic part disposed on the substrate, and A light source module disposed on a first side of the substrate, the light source module including a light emitting diode and an insulating dome covering the light emitting diode, Wherein a protective layer is disposed on an outer surface of the substrate to cover the conductive layer, Wherein the at least one power feeding portion is disposed on the first side of the substrate and contacts the light emitting diode of the light source module, and Wherein the at least one antistatic part includes at least one window formed in the protective layer, through which the antistatic line is exposed to the outside.
2. 2. The display device of claim 1, wherein the at least one antistatic portion is not in contact with the light emitting diode of the light source module.
3. 3. The display device of claim 1, wherein the at least one antistatic portion is disposed outside an area defined by a plan view outline of the insulating dome.
4. 4. The display device according to claim 1, wherein the at least one antistatic portion includes a plurality of antistatic portions arranged on a circumference of a virtual circle surrounding the light emitting diode and the at least one power feeding portion.
5. 5. The display device according to claim 4, wherein the plurality of antistatic parts are arranged at substantially equidistant intervals on the circumference of the virtual circle.
6. 6. The display device according to claim 1, wherein the at least one antistatic part is in an arc shape of a virtual circle surrounding the light emitting diode and the at least one power feeding part.
7. 7. The display device of claim 1, wherein a portion of the at least one antistatic portion overlaps the insulating dome.
8. 8. The display device of claim 1, wherein the at least one antistatic portion comprises an outer antistatic portion located outside an area defined by a plan view profile of the insulating dome, and an inner antistatic portion located inside the area defined by a plan view profile of the insulating dome.
9. 9. The display device of claim 1, wherein the at least one antistatic portion has a size of 0.16% or more of an area defined by a plan view outline of the insulating dome.
10. 10. The display device of claim 1, wherein a shortest distance of the at least one antistatic portion to a plan view profile of the insulating dome is less than or equal to a radius of an area defined by the plan view profile of the insulating dome.
11. 11. The display device of claim 1, wherein the antistatic line is electrically connected to ground of the display device or coupled to ground through a capacitor.
12. 12. The display device according to claim 1, wherein the at least one antistatic portion further comprises solder applied on the antistatic line exposed to the outside through the at least one window formed in the protective layer.
13. 13. The display device of claim 1, wherein the light emitting diode directly contacts the at least one feed without wires or ball grids.
14. 14. The display device of claim 1, wherein the light emitting diode directly contacts the at least one feed without a zener diode.

Description

Display device Cross Reference to Related Applications The present application is a branched continuation-in-line application of international application No. pct/KR2021/002823 filed on 3/8 of 2021, which claims priority from korean patent application No.10-2020-0138630 filed on 23 of 10/2020 to korean intellectual property office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field The present invention relates to a display device, and more particularly, to a display device and a light source module thereof capable of preventing or suppressing a light source from being electrostatically damaged. Background In general, a display device is an output device for converting acquired or stored electronic information into visual information and displaying the visual information to a user. Display devices are used in various fields such as home, business, and the like. The display device includes a monitor connected to a personal computer, a server computer, or the like, a portable terminal (e.g., a portable computer, a navigation terminal, a general television, an Internet Protocol Television (IPTV), a smart phone, a tablet computer, a Personal Digital Assistant (PDA), or a mobile phone), various display devices for reproducing images such as advertisements or movies at an industrial site, or other various audio/video systems. A display device includes a light source module for converting electrical information into visual information, and the light source module includes a plurality of light sources that emit light independently. The plurality of light sources includes, for example, light Emitting Diodes (LEDs) or Organic Light Emitting Diodes (OLEDs). For example, LEDs or OLEDs are mounted on circuit boards or substrates. Static electricity may be generated to damage the light source when manufacturing, using, maintaining or repairing the display device. To prevent or suppress such static electricity, each light source generally includes an electrostatic discharge protection circuit (e.g., a zener diode) and an LED. However, recently, the number of light sources is increased in order to improve contrast, and the area allocated to the LED and the zener diode is narrowed due to the increase in the number of light sources. Disclosure of Invention Technical problem Accordingly, it is an aspect of the present disclosure to provide a display device including a plurality of light sources, each of the plurality of light sources including a light emitting diode without a zener diode. An aspect of the present disclosure is to provide a display device including an antistatic member for suppressing or preventing a plurality of light sources from being damaged by static electricity generated around the light sources. Technical proposal According to one aspect of the present disclosure, a display device includes a liquid crystal panel, a substrate disposed under the liquid crystal panel, a reflective sheet, and a light source module. The substrate may include at least one feeding portion and at least one antistatic portion, and the reflection sheet may include a hole and be disposed on the first side of the substrate. The light source module may be disposed in an area defined by the hole of the reflective sheet on the first side of the substrate, and the light source module may include a light emitting diode and an insulating dome covering the light emitting diode. At least one power feeding part may be disposed on the first side of the substrate and may be in contact with the light emitting diode of the light source module, and at least one antistatic part may be disposed within an area defined by the hole of the reflective sheet on the first side of the substrate. According to one aspect of the present disclosure, a light source apparatus is provided, and the light source apparatus may include a substrate including at least one power feeding portion and at least one antistatic portion. The light source device may further include a reflective sheet provided with a hole, the reflective sheet being disposed on the first side of the substrate. Further, the light source apparatus may further include a light source module disposed in an area defined by the hole of the reflective sheet on the first side of the substrate, and the light source module may include a light emitting diode and an insulating dome covering the light emitting diode. At least one power feeding portion may be disposed on the first side of the substrate and may contact the light emitting diode of the light source module. Further, at least one antistatic part is disposed in an area defined by the hole of the reflective sheet on the first side of the substrate. According to one aspect of the present disclosure, a display device includes a liquid crystal panel, a substrate disposed under the liquid crystal panel, a reflective sheet including a plurality of holes, the reflective sheet disposed on a first side of the substr