KR101678627B1 - Curved display frame and a display device having the same - Google Patents

Curved display frame and a display device having the same Download PDF

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Publication number
KR101678627B1
KR101678627B1 KR1020150121125A KR20150121125A KR101678627B1 KR 101678627 B1 KR101678627 B1 KR 101678627B1 KR 1020150121125 A KR1020150121125 A KR 1020150121125A KR 20150121125 A KR20150121125 A KR 20150121125A KR 101678627 B1 KR101678627 B1 KR 101678627B1
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KR
South Korea
Prior art keywords
frame
display panel
panel unit
display
curved
Prior art date
Application number
KR1020150121125A
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Korean (ko)
Inventor
반신애
Original Assignee
주식회사 모바일리소스코리아
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Priority to KR1020150121125A priority Critical patent/KR101678627B1/en
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Publication of KR101678627B1 publication Critical patent/KR101678627B1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G02F2001/133314—
    • G02F2001/13332—
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46—Fixing elements
    • G02F2201/465—Snap -fit

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)

Abstract

The present invention relates to a curved display frame and a display apparatus having the same. The display apparatus includes: a display panel unit including an LCD panel having a PCB, a protection sheet, a sheet member, a light guide plate, a reflective sheet, and a lower cover, formed in a polygonal shape and configured to output an image and data; a first fixation panel fixed to both sides of the display panel unit to protect the both sides of the display panel unit from external pressure, and provided at the top end to prevent the display panel unit from being separated and to enable the display panel unit to be firmly fixed; a second fixation panel coupled to each of lower and upper surfaces of the display panel unit and a straight frame which is formed thereat with first insertion holes at regular distances to enable the first fixation panel to be coupled to a fastening member so as to protect the lower and upper surfaces of the display panel unit from the external pressure, and provided at the top end to prevent the display panel unit from being separated and to enable the display panel unit to be firmly fixed; and a curved frame formed thereat with second insertion holes to at regular distances to enable the first fixation panel to be coupled to the fastening member.

Description

[0001] The present invention relates to a display device having a curved display frame,

The present invention relates to a display device having a curved display frame. More particularly, the present invention relates to a method of manufacturing a curved display structure, in which a curved radius of a covered panel is maintained and a frame having the curved radius is formed, And a display device having a display frame.

Generally, the flat display device has a difference in viewers watching the left and right ends of the screen. The tendency is that as the screen size increases, the viewer's viewpoint difference, that is, the distance between the left and right sides and the center of the screen, is different. In order to solve such a problem of the screen, the screen can be improved by concave and curving. On the other hand, when it is necessary to show the nearest part to the viewer of the screen, the difference in viewpoint can be made larger by making the flat display device convex to add the perspective of the screen. A concave display for reliably transmitting information on the screen by changing the viewpoint of the viewer and a convex display for limiting and transmitting necessary information are required. The concave or convex shape of the concave or convex shape is lower than that of the conventional display device because the light emitted from the light source of the backlight is not uniformly transmitted due to the warping of the display. To solve this problem, we need to have a frame that includes a backlight structure optimized for curves.

(Patent 0001) Korean Patent Publication No. 2012-0074628

The present invention for solving the problems of the related art is to apply a single or minimum processing to a frame without maintaining a frame set for each display size by maintaining the radius of curvature of the covered panel and producing a frame having the radius of curvature And to provide a curved display frame in which a curved display structure is formed and a display device having the curved display frame.

It is another object of the present invention to provide a curved display frame including a display panel and a backlight panel so that a space can be formed in the frame so as to simultaneously fix the seat and a display device having the curved display frame.

According to another aspect of the present invention, there is provided a curved display frame for forming a frame set on the basis of the largest size of a display panel part and a backlight, And a display device having such a display device.

According to an aspect of the present invention, there is provided a curved display frame and a display device having the same, the LCD panel including a PCB, a protective sheet, a sheet member, A display panel unit including a light guide plate, a reflection sheet, and a lower cover; a display panel unit coupled to both sides of the display panel unit and configured to protect both sides of the display panel unit from external pressure, And a first frame having a first insertion groove in which the first fixing panel is formed with a groove at a predetermined interval so as to be able to engage with the fastening member and a second frame coupled to the upper and lower surfaces of the display panel, In order to protect the upper and lower surfaces of the display panel unit from external pressure A second fixing panel configured to be firmly coupled to the display panel so that the display panel is not separated from the display panel, and a second insertion groove having grooves formed at regular intervals to allow the second fixing panel to engage with the fastening member And a curved frame.

The linear frame is formed at a lower end of the first fixing panel to securely secure and protect the LCD panel. The linear frame is configured to complement a predetermined gap after coupling the display panel unit. A first reinforcing member and a lower end of the first reinforcing member, the light guide plate, and a fixing member configured to be firmly coupled by inserting the reflective sheet, and configured to complement a predetermined gap remaining after coupling the display panel unit And further comprising a member.

The curved frame may be formed at a lower end of the first fixing panel to securely secure and simultaneously protect the LCD panel. 2 reinforcement member.

The first reinforcing member or the second reinforcing member may be formed of a sponge, latex, rubber, silicone, or plastic.

Further, the linear frame or the curved frame may be manufactured to have the largest standard among the standards of the curved display.

According to the embodiment of the present invention, the curved radii of the covered panel are maintained and the frame having the curved radii is manufactured. Thus, a single or minimum processing is applied without separately preparing a frame set for each display size, A display structure can be constructed.

In addition, according to an embodiment of the present invention, a space may be formed in the frame to simultaneously fix the sheet including the display panel portion and the backlight panel.

In addition, according to the embodiment of the present invention, since the thicknesses of the display panel portion and the backlight are different from each other, the frame set is manufactured on the basis of the largest standard, and the thickness is compensated by forming the finishing material according to the deviation according to the thickness .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an overall configuration diagram of a curved display frame and a display device having the same,
2 is an exploded perspective view of a curved display frame and a display device having the curved display frame according to the first embodiment,
Fig. 3 is a combined structure of a curved display frame and a supporting frame of a first embodiment of the display device having the curved display frame,
4 is a horizontal sectional view of a curved display frame and a curved display of a first embodiment of the display device having the curved display frame,
5 is a vertical sectional view of a curved display frame and a curved display in a first embodiment of the display device having the curved display frame,
6 is a partial structural view of a curved display frame and a supporting frame of a first embodiment of the display device having the curved display frame,
7 is a transparency of the curved display frame and the support frame of the first embodiment of the display device having the curved display frame.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications are possible.

Fig. 1 is an overall configuration diagram of a curved display frame and a display device having the same, Fig. 2 is an exploded perspective view of a curved display frame and a display device having the same, Fig. Fig. 4 is a horizontal sectional view of a curved display frame and a curved display of the first embodiment of the display device having the same, Fig. 5 is a sectional view of a curved display frame and a display Fig. 6 is a partial sectional view of a curved display frame and a supporting frame of a first embodiment of the display device having the curved display frame, Fig. 7 is a sectional view of a curved display frame and a display device Is the transparency of the support frame of the first embodiment.

The curved display frame and the display device having the curved display frame include a display panel unit 100 configured to output images and data, a display panel unit 100 formed on the outer circumferential surface of the display panel unit 100, And a support frame 200 that is firmly coupled to the display panel unit 100 and protects the display panel unit 100.

The display panel unit 100 is constituted by polygons and is configured to receive an output image signal and output an image to a display, and is configured to have a constant radius of curvature when viewed on a plane.

In addition, the display panel unit 100 includes an LCD panel 110 at an upper end thereof, receives output signals from the outside through a PCB (Printed Circuit Borad) 111, and implements the output signals as images, .

The LCD panel 110 is a panel formed at the upper end of the curved display 10 and may be formed on the upper and lower surfaces to protect the LCD panel 1100. However, Of course.

The sheet member 130 formed on the lower end surfaces of the LCD panel 110 and the protective sheet 120 is composed of a plurality of sheets and is a sheet that assists the light guide plate 140 to be described later and is composed of a diffusion sheet and a diffusion sheet have.

The diffuser sheet diffuses light uniformly scattered over the entire surface of the light guide plate by scattering light leaking in a predetermined direction from the surface of the light guide plate 140 described later.

The prism sheet formed with the diffusion sheet is a sheet that functions to imagine the brightness on the surface of the display panel unit 100 by refracting or condensing the light formed on the diffusion sheet.

The light guide panel 140 formed at the lower end of the sheet member 130 is composed of a transparent acrylic panel and receives light emitted from the lamp 101 to be transmitted through a pattern having a predetermined area and shape deposited on the surface It distributes the light evenly over the entire area of the display.

The reflective sheet 150 formed at the lower end of the light guide plate 140 reflects the light leaking from the light guide plate 140 to return the light to the light guide plate 140.

The lower cover 160 formed at the rear portion of the curved display 10 protects the rear portion of the display panel 100 and provides a predetermined sealing force to prevent foreign substances present from the outside from entering the curved display 10. [ And a plurality of grooves are formed at regular intervals so as to be able to engage with the support frame 200.

The support frame 200 coupled to the outer surface of the display panel unit 100 is made of stainless steel or reinforced plastic that is light and durable and integrally joined to the display panel unit 100, 100 to protect the outer circumferential surface.

The support frame 200 is manufactured based on the largest standard among various standards of the curved display 10 and inserts the components of the display panel unit 100 and the reinforcing members 213, 233 to compensate for the deviation of the predetermined gap.

The support frame 200 includes a linear frame 210 coupled to both sides of the display panel 100 and a curved frame 230 coupled to the upper and lower surfaces.

The linear frame 210 is coupled to both sides of the display panel unit 100 to protect both sides of the curved display 10 and corrects the display panel unit 100 to prevent damage and operation errors .

The linear frame 210 includes a first fixing panel 211 formed at the uppermost portion and protecting the front portion of the rectilinear frame 210, a first reinforcing member 211 inserted in the groove at the inner side to protect the LCD panel 110, A fixing member 215 configured to fix the linear frame 210 to the sheet member 130, the light guide plate 140, and the reflective sheet 150 at the lower end of the first reinforcing member 213, And a first insertion groove 217 configured to be engaged with the first fixing panel 211 at a predetermined interval.

The first fixing panel 211 is coupled to the upper end of the rectilinear frame 210 and functions as a support so that the first reinforcing member 213 described later can be firmly coupled to the rectilinear frame 210, It is preferable that a plurality of grooves are formed so that a fastening member such as a screw and a bolt is inserted at a constant interval to firmly engage with each other.

The first reinforcing member 213 formed at the lower end of the first fixing panel 211 is configured to fix the protective sheet 120 formed on the upper and lower surfaces of the LCD panel 110 and the LCD panel 110, And inserting the grooved portion in the upper end of the linear frame 210. [

The first reinforcing member 213 is made of a material having a predetermined elastic force such as sponge, latex, rubber, silicone or plastic and is made of a lightweight material. The thickness of the LCD panel 110 and the thickness of the protective sheet 120 The thickness of the LCD panel 110 and the thickness of the protective sheet 120 may be different from each other in the thickness of the LCD panel 110 and the thickness of the protective sheet 120, Of course.

That is, the first reinforcing member 213 is preferably configured to match the thickness of the LCD panel 110 and the protective sheet 120.

The fixing member 215 formed at the lower end of the linear frame 210 is configured to be able to fix the light guide plate 140 and the reflection sheet 150 and includes a light guide plate 140, (150) is inserted and fixed firmly.

The fixing member 215 inserts the sheet member 130 into the gap formed between the linear frame 210 and the fixing member 215 and fixes the fixing member 215 so that the sheet member 130 is not shaken or separated. As shown in Fig.

In addition, the fixing member 215 can be fixed so that the predetermined gap remaining after inserting the display panel unit 100 is fixed by inserting the fixing member 215 as the supporting frame 200 is manufactured to the largest size The first reinforcing member 213 and the fixing member 215 can compensate for a deviation of a predetermined gap or the first reinforcing member 213 can compensate for a deviation of a predetermined gap Of course.

The first insertion groove 217 formed at regular intervals in the linear frame 210 is formed with a groove penetrating through the first fixing panel 211 and the lower cover 160 so as to engage with the first fixing panel 211 and the first insertion groove 217, Such as a screw and a bolt, can be inserted into the first insertion groove 217. The first insertion groove 217 formed at both end portions is formed in the first coupling portion 219 formed by a plurality of stages, (239) in a male-female coupling manner.

The curved frame 230 coupled to the upper and lower surfaces of the curved display 10 is made of stainless steel or reinforced plastic material which is light in weight and durable and integrated with the display panel unit 100, So that the upper and lower surfaces of the unit 100 can be protected.

The curved frame 230 is coupled to both sides of the display panel portion 100 to protect both side portions of the curved display 10 and to correct the display panel portion 100 so that damage and operation errors do not occur .

The curved frame 230 includes a second fixing panel 231 formed at the uppermost end to protect the front portion of the curved frame 230 and a second reinforcing member 231 inserted into the groove at the inside to protect the LCD panel 110. [ A second insertion groove 235 configured to be engaged with the second fixing panel 231 and formed with grooves at regular intervals and a fixing groove 237 configured to be inserted and fixed by the PCB 111, Lt; / RTI >

The second fixing panel 231 is coupled to the upper end of the curved frame 230 and functions as a support so that the second reinforcing member 233 described later can be firmly coupled to the curved frame 230, It is preferable that a plurality of grooves are formed so that a fastening member such as a screw and a bolt is inserted at a constant interval to firmly engage with each other.

The second reinforcing member 233 formed at the lower end of the second fixing panel 231 is configured to fix the protective sheet 120 formed on the upper and lower surfaces of the LCD panel 110 and the LCD panel 110, But it is needless to say that the present invention is not limited thereto and may be inserted into the lower end portion or inserted into the intermediate portion.

The second reinforcing member 233 is made of a material having a predetermined elastic force such as sponge, latex, rubber, silicone or plastic and is made of a lightweight material. The thickness of the LCD panel 110 and the thickness The thickness of the LCD panel 110 and the thickness of the protective sheet 120 may be different from each other in the thickness of the LCD panel 110 and the thickness of the protective sheet 120, Of course.

That is, it is preferable that the second reinforcing member 233 is configured according to the thickness of the LCD panel 110 and the protective sheet 120.

The second insertion groove 235 formed at regular intervals in the curved frame 230 is a groove penetrating through the second fixing panel 231 and the lower cover 160 so that the second insertion groove 235 can be engaged with the second insertion groove 235, And second insertion grooves 235 formed at both end portions are formed in a second coupling portion 239 formed by a plurality of stages so that the first coupling portions 217 and So that it can be prevented from being twisted and separated from the display panel portion and can be firmly fastened.

The first frame 219 and the second frame 239 of the linear frame 210 and the curved frame 230 are fastened in a male and female coupling manner, 1 through the insertion grooves 235, and is firmly engaged with the insertion grooves 235.

The fixing groove 237 formed at the upper end of the curved frame 230 is a groove configured to be inserted and fixed by the PCB 111 formed on the LCD panel 110 and inserted and fixed inside the second reinforcing member 233 It is preferable that it is configured so as not to overlap with the second reinforcing member 233 at the outer circumferential surface of the curved frame 230.

That is, the curved display 10 is constituted by inserting the support frame 200 into the four sides of the upper, lower, left, and right sides of the display panel unit 100, and a first reinforcing member 213, The display panel unit 100 can be firmly coupled by inserting the member 215 and the second reinforcing member 233 is inserted into the upper and lower surfaces of the display panel unit 100 to prevent the LCD panel 120 from being slightly shaken .

The curved display 10 includes the linear frame 210 and the curved frame 230 as a single unit and has the largest size. The predetermined gap remaining after the display panel unit 100 is inserted is formed by the reinforcing members 213 and 233, The fixing member 215 and the like can compensate for the thickness variation, and at the same time, the manufacturing process of the support frame 200 is simplified, so that the cost reduction and manufacturing process can be simplified.

Although the present invention has been described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto, It is to be understood that various modifications and changes may be made without departing from the scope of the appended claims.

10: Curved display 100: Display panel part
110: LCD panel 111: PCB
120: protective sheet 130: sheet member
140: light guide plate 150: reflective sheet
160: lower cover 200: support frame
210: linear frame 211: first fixed panel
213: first reinforcing member 215: fixing member
217: first insertion groove 230: curved frame
231: second fixing panel 233: second reinforcing member
235: second insertion groove 237: fixing groove

Claims (5)

A display panel unit configured to output images and data and configured in a polygonal shape and including an LCD panel including a PCB, a protective sheet, a sheet member, a light guide plate, a reflection sheet, and a lower cover;
A first fixing panel coupled to both sides of the display panel unit and configured to be rigidly coupled to the display panel unit so that the display panel unit is not separated from the first panel panel, The display panel unit may include a first inserting groove and a lower end portion of the first fixing panel to securely secure and protect the LCD panel. 1. A linear frame comprising a reinforcing member and protecting both side surfaces of the display panel unit from external pressure; And
A second fixing panel coupled to the upper and lower surfaces of the display panel unit and configured to protect upper and lower surfaces of the display panel unit from external pressure and configured to be firmly coupled to the display panel unit so as not to separate the display panel unit, A second insertion groove having grooves formed at regular intervals so that the fixing panel can engage with the fastening member and a lower insertion hole formed at the lower end of the second fixing panel to securely and simultaneously secure the LCD panel, And a curved frame for protecting the upper and lower surfaces of the display panel unit from external pressure, the curved frame comprising a second reinforcing member configured to complement a predetermined gap remaining after joining the panel unit,
The first and second coupling parts are formed at both ends of the curved frame so that the first coupling part and the second coupling part are coupled to each other by male and female coupling parts. Wherein the fastening is performed by a fastening method.
The method according to claim 1,
In the linear frame,
And a fixing member formed at a lower end of the first reinforcing member and configured to be firmly coupled to the light guide plate by inserting the reflective sheet and to complement a predetermined gap remaining after the display panel unit is coupled Wherein the display device has a curved display frame.
delete The method according to claim 1,
Wherein the first reinforcing member or the second reinforcing member includes:
Sponge, latex, rubber, silicone, and plastic, and a display device having the same.
The method according to claim 1,
The straight line frame or the curved line frame,
Wherein the display device is fabricated to have the largest standard among the specifications of the curved display.
KR1020150121125A 2015-08-27 2015-08-27 Curved display frame and a display device having the same KR101678627B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107238971A (en) * 2017-06-16 2017-10-10 厦门天马微电子有限公司 Combine light guide plate, backlight assembly and display panel
WO2021120161A1 (en) * 2019-12-20 2021-06-24 京东方科技集团股份有限公司 Curved display device and vehicle
US11300819B2 (en) 2019-12-20 2022-04-12 Beijing Boe Display Technology Co., Ltd. Curved surface display device having backlight assembly with frame members

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Publication number Priority date Publication date Assignee Title
KR20060070343A (en) * 2004-12-20 2006-06-23 삼성전자주식회사 A flat display device provided with an integrated chassis
KR20120074628A (en) 2010-12-28 2012-07-06 주식회사 포스코 Method for removing impurities in silicon and apparatus thereof
KR20120080724A (en) * 2011-01-10 2012-07-18 삼성전자주식회사 Display apparatus
KR20140007202A (en) * 2012-07-09 2014-01-17 삼성디스플레이 주식회사 Curved frame and curved display device having the same
KR20150092408A (en) * 2014-02-04 2015-08-13 삼성디스플레이 주식회사 Curved backlight assembly and curved display device having the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060070343A (en) * 2004-12-20 2006-06-23 삼성전자주식회사 A flat display device provided with an integrated chassis
KR20120074628A (en) 2010-12-28 2012-07-06 주식회사 포스코 Method for removing impurities in silicon and apparatus thereof
KR20120080724A (en) * 2011-01-10 2012-07-18 삼성전자주식회사 Display apparatus
KR20140007202A (en) * 2012-07-09 2014-01-17 삼성디스플레이 주식회사 Curved frame and curved display device having the same
KR20150092408A (en) * 2014-02-04 2015-08-13 삼성디스플레이 주식회사 Curved backlight assembly and curved display device having the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107238971A (en) * 2017-06-16 2017-10-10 厦门天马微电子有限公司 Combine light guide plate, backlight assembly and display panel
CN107238971B (en) * 2017-06-16 2020-05-15 厦门天马微电子有限公司 Combined light guide plate, backlight assembly and display panel
WO2021120161A1 (en) * 2019-12-20 2021-06-24 京东方科技集团股份有限公司 Curved display device and vehicle
US11300819B2 (en) 2019-12-20 2022-04-12 Beijing Boe Display Technology Co., Ltd. Curved surface display device having backlight assembly with frame members
US11573441B2 (en) 2019-12-20 2023-02-07 Beijing Boe Display Technology Co., Ltd. Backlight assembly with frame having plurality of positioning grooves on rim

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