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EP-4047673-B1 - DISPLAY DEVICE

EP4047673B1EP 4047673 B1EP4047673 B1EP 4047673B1EP-4047673-B1

Inventors

  • KANG, SEUNGGYU
  • KIM, Taegewn
  • CHO, HYUNCHEOL

Dates

Publication Date
20260506
Application Date
20191018

Claims (5)

  1. A display device comprising: a display panel (10); a front frame (20) including a panel adhesive area (AA), to which the display panel (10) is attached through an adhesive means; and a rear frame (30) coupled to a rear of the front frame (20), characterised in that a portion of the front frame (20) protrudes rearward to the rear frame (30) thereby forming a rectangular band-shaped seating portion (23, 23a to 23d) along a border of the device, a heat dissipation space (HS) for dissipating heat is provided between a back surface of the panel adhesive area (AA) and a front surface of the rear frame (30), a driving board (DB) mounted on a back side of the display panel (10) is accommodated in a space on the back side of the seating portion (23d), and the rear frame includes a coupling portion (41) mechanically bonded to the seating portion (23, 23a to 23d).
  2. The display device of claim 1, wherein the front frame (20) further includes an edge portion (21) bent to be contiguous to the seating portion (23, 23a to 23d) and forming the border of the device, wherein the rear frame (30) includes an insert (31) bent toward the front frame (20), and wherein the insert (31) is inserted at the edge portion.
  3. The display device of claim 1 or 2, wherein the mechanical bonding is either clinching or spot welding.
  4. The display device of claim 2 or 3, when depending on claim 2, wherein the edge portion (21) includes a first part (211) protruding toward the display panel (10), a second part (212) folded outwards from the first part (211), and a third part (213) folded between the first part (211) and the first part in the second part (212), and wherein the insert (31) is inserted between the first part (211) and the third part (213).
  5. The display device of one of claims 2 to 4, when depending on claim 2, wherein the rear frame (30) includes a receiving portion (33) positioned at a bottom and has an arch shape that is gradually convex backward from an end at which the insert (31) is formed to a portion at which the receiving portion (33) is formed.

Description

Technical Field The present disclosure relates to a display device having reduced volume and weight. Background Art As the information society develops, the demand for display devices is also increasing in various forms, and in response to this, various display devices such as a liquid crystal display device (LCD), a plasma display panel (PDP), an electroluminescent display (ELD), a vacuum fluorescent display (VFD), and an organic light emitting diode (OLED) have been researched and used. Among them, the display device using the organic light emitting diode (OLED) has excellent luminance characteristics and viewing angle characteristics compared to the liquid crystal display device, and does not require a backlight unit, so that it can be implemented in an ultra-thin shape. Furthermore, US 2017/118859 A1 and US 2019/132963 A1 relates to display devices providing features for heat dissipation, such as a heat dissipating space between the display panel and a module cover or through a metal layer bonded to a back cover. KR 2015 0137819 A discloses a display device comprising a display panel, a front frame including a panel adhesive area to which the display panel is attached through an adhesive means, and a rear frame coupled to a rear of the front frame. Detailed Description of Invention Technical Problem It is an object of the present disclosure to reduce the thickness and volume of a display device. Another object of the present disclosure is to increase structural rigidity and reduce weight of a display device. Technical Solution These objects are solved by the present invention as defined in the independent claim. Preferred embodiments can be derived from the dependent claims. According to an aspect of the present disclosure, but not reflecting the claimed invention, a display device comprises a display panel, a front frame attached to the display panel, and a rear frame coupled to a rear of the front frame, wherein the front frame is pressed toward the rear frame, and includes a rectangular band-shaped seating portion formed along a border of the device, and wherein the rear frame includes a coupling portion mechanically bonded to the seating portion. The front frame includes an edge portion bent to be contiguous to the seating portion and forming the border of the device, the rear frame includes an insert bent toward the front frame, the insert is inserted and fastened between the edge portion and the seating portion. The mechanical bonding may be either clinching or spot welding. The edge portion includes a first part protruding forward, a second part folded outwards from the first part, and a third part folded between the first part and the first part in the second part. The rear frame has an arch shape that is gradually convex backward from an end at which the insert is formed to a portion at which the receiving portion is formed. The display device comprises a driving board disposed on a rear side of the display panel, wherein the driving board is accommodated in the seating portion. Another display device to better understand the present disclosure, but not reflecting the claimed invention, comprises a display panel, a front frame including a bottom portion to which the display panel is attached to a front side, and an edge portion bent toward a rear at an end of the bottom portion, a rear frame inserted and fastened inwardly into a receiving space defined by the edge portion, and a clip fastening the front frame and the rear frame. The rear frame includes a flat portion facing the bottom portion at a predetermined distance and a bending portion bent toward the front frame at an end of the flat portion. The edge portion includes a first part protruding forward, a second part protruding rearward from the first part, and a third part folded inward toward a front from the second part. The clip includes a body fitted to the bending portion, and a locking portion having tension and protruding from the body toward the edge portion and restraining the third part. The bending portion includes a cutout portion formed in a region related to the locking portion. The locking portion includes a first member formed as an uphill slope from the front to the rear, and a second member bent from the first member toward the cutout portion. The device may further comprise a spacer disposed between the front frame and the rear frame, and the spacer includes a plate and a grid portion protruding from the plate in a grid shape. Advantageous Effects The effect of the display device according to the present disclosure will be described as follows. According to an embodiment of the present disclosure, since the frame is configured to include the front and rear frames, the thickness and volume of the display device can be effectively reduced. According to an embodiment of the present disclosure, since the frame is configured to include the front and rear frames, the structural rigidity and weight of the display device can be