US-12625402-B2 - Display device

US12625402B2US 12625402 B2US12625402 B2US 12625402B2US-12625402-B2

Abstract

A display device is disclosed. The display device according to the present disclosure may comprise: a display panel; a frame coupled to the display panel; a substrate positioned between the display panel and the frame and coupled to the frame; a light source mounted on the substrate; and a reflective sheet positioned on the substrate and including a hole through which light from the light source passes. The substrate may comprise: a first substrate extending to be long; and a second substrate electrically connected to the first substrate. The second substrate may comprise: a first plate extending in a direction crossing a longitudinal direction of the first substrate; a second plate extending in the longitudinal direction of the first plate and spaced apart from the first plate in the longitudinal direction of the first substrate; and a third plate connecting the first plate with the second plate and electrically connected to the first substrate.

Inventors

Yongmin JUNG
Minho Kim
Seunghwan SHIM
Dukil SUH
Byungwoo Lee

Assignees

LG ELECTRONICS INC.

Dates

Publication Date: 20260512
Application Date: 20220922

Claims (11)

1 . A display device comprising: a display panel; a frame coupled to the display panel; a substrate disposed between the display panel and the frame and coupled to the frame; a plurality of light sources mounted on the substrate; and a reflective sheet disposed on the substrate and having a hole through which the plurality of light sources passes, wherein the substrate comprises: a first substrate which is elongated; a second substrate which is electrically connected to a first side of the first substrate; and a third substrate which is electrically connected to a second side of the first substrate opposite to the first side of the first substrate, wherein each of the second substrate and the third substrate comprises: a first plate extending in a direction intersecting a longitudinal direction of the first substrate; a second plate that is parallel to the first plate and that is spaced apart from the first plate; and a third plate connecting the first plate and the second plate and electrically-connected to the first substrate.
2 . The display device of claim 1 , wherein the plurality of light sources are mounted on the first plate and the second plate, and are spaced apart from each other in a longitudinal direction of each of the first plate and the second plate.
3 . The display device of claim 2 , further comprising a plurality of lenses fixed to the substrate and covering respective ones of the plurality of light sources, wherein each of the plurality of lenses have a diameter equal to or smaller than widths of the first plate and the second plate in a longitudinal direction of the first substrate.
4 . The display device of claim 1 , wherein the plurality of light sources comprises: a plurality of first light sources which are mounted on the first plate, and are spaced apart from each other in the longitudinal direction of the first plate; and a plurality of second light sources which are mounted on the second plate, and are spaced apart from each other in a longitudinal direction of the second plate, wherein some of the plurality of first light sources and some of the plurality of second light sources form a local dimming block.
5 . The display device of claim 1 , further comprising: a connector mounted on the first substrate; a first coupling part mounted on the third plate of the second substrate and connected to the connector; and a second coupling part mounted on the third plate of the third substrate and connected to the connector.
6 . The display device of claim 5 , wherein the frame comprises first to fourth sides that are adjacent to each other, wherein the first substrate is elongated from the first side of the frame to the third side of the frame, and the first plate is elongated from the first side of the first substrate or a second side of the first substrate toward the second side or the fourth side of the frame.
7 . The display device of claim 1 , wherein the second substrate comprises a plurality of second substrates that are spaced apart from each other along the first side and of the first substrate, and wherein the third substrate comprises a plurality of third substrates being spaced apart from each other along the second side of the first substrate.
8 . The display device of claim 1 , wherein widths of the first plate and the second plate in the longitudinal direction of the first substrate are equal to each other, and a separation distance between the first plate and the second plate is equal to the width of the first plate.
9 . The display device of claim 1 , wherein widths of the first plate and the second plate in the longitudinal direction of the first substrate are equal to each other, and a separation distance between the first plate and the second plate is equal to twice the width of the first plate.
10 . The display device of claim 1 , wherein the first plate, the second plate, and the third plate are formed as one body.
11 . The display device of claim 1 , wherein the frame comprises a plurality of regions, wherein the substrate comprises a plurality of substrates that are coupled to the plurality of regions, respectively, wherein the plurality of substrates have a same shape.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application is the National Stage filing under 35 U.S.C. 371 of International Application No. PCT/KR2022/014209, filed on Sep. 22, 2022, the contents of which is hereby incorporated by reference herein in its entirety. TECHNICAL FIELD The following description relates to a display device. BACKGROUND ART With the development of the information society, there have been growing demands for various types of display devices, and in order to meet these demands, various display devices, such as a liquid crystal display (LCD) device, a Plasma Display Panel (PDP), an electroluminescent display (ELD), a vacuum fluorescent display (VFD), an organic light emitting diode (OLED), etc., have been studied and used recently. Among them, the LCD panel includes a TFT substrate and a color substrate which are positioned opposite each other with a liquid crystal layer interposed therebetween, and displays images by using light provided by a backlight unit. Recently, many studies are being conducted on the structure of a substrate on which light sources, such as LEDs, are mounted. DISCLOSURE OF INVENTION Technical Problem It is an objective of the present disclosure to solve the above and other problems. It is another objective of the present disclosure to provide a display device with excellent image quality characteristics. It is yet another objective of the present disclosure to provide a substrate structure capable of implementing various types of local dimming blocks. It is still another objective of the present disclosure to provide a display device capable of reducing substrate manufacturing costs. It is further another objective of the present disclosure to provide a substrate structure capable of increasing a substrate chamfering efficiency. Solution to Problem In accordance with an aspect of the present disclosure, the above and other objectives can be accomplished by providing a display device including: a display panel; a frame coupled to the display panel; a substrate disposed between the display panel and the frame and coupled to the frame; a light source mounted on the substrate; and a reflective sheet disposed on the substrate and having a hole through which the light source passes, wherein the substrate includes: a first substrate which is elongated; and a second substrate which is electrically connected to the first substrate, wherein the second substrate includes: a first plate extending in a direction intersecting a longitudinal direction of the first substrate; a second plate extending in the longitudinal direction of the first plate and spaced apart from the first plate in the longitudinal direction of the first plate; and a third plate connecting the first plate and the second plate and electrically connected to the first substrate. Advantageous Effects of Disclosure The display device according to the present disclosure has the following effects. According to at least one of the embodiments of the present disclosure, a display device with excellent image quality characteristics may be provided. According to at least one of the embodiments of the present disclosure, a substrate structure capable of implementing various types of local dimming blocks may be provided. According to at least one of the embodiments of the present disclosure, substrate manufacturing costs may be reduced. According to at least one of the embodiments of the present disclosure, a substrate structure capable of increasing a substrate chamfering efficiency may be provided. Further scope of applicability of the present disclosure will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the present disclosure, are given by illustration only, since various changes and modifications within the spirit and scope of the present disclosure will become apparent to those skilled in the art from this detailed description. BRIEF DESCRIPTION OF DRAWINGS FIGS. 1 to 11 are diagrams illustrating examples of a display device according to embodiments of the present disclosure. MODE OF DISCLOSURE Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings, in which the same reference numerals are used throughout the drawings to designate the same or similar components, and a redundant description thereof will be omitted. The suffixes, such as “module” and “unit,” for elements used in the following description are given simply in view of the ease of the description, and do not have a distinguishing meaning or role. In addition, it will be noted that a detailed description of known arts will be omitted if it is determined that the detailed description of the known arts can obscure the embodiments of the present disclosure. Further, the accompanying drawings are used to help easily understand various technical features and it s