KR20140086276A - Display apparatus - Google Patents

Display apparatus Download PDF

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Publication number
KR20140086276A
KR20140086276A KR1020120156571A KR20120156571A KR20140086276A KR 20140086276 A KR20140086276 A KR 20140086276A KR 1020120156571 A KR1020120156571 A KR 1020120156571A KR 20120156571 A KR20120156571 A KR 20120156571A KR 20140086276 A KR20140086276 A KR 20140086276A
Authority
KR
South Korea
Prior art keywords
display
middle cabinet
display panel
reflective groove
backlight unit
Prior art date
Application number
KR1020120156571A
Other languages
Korean (ko)
Inventor
김철수
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020120156571A priority Critical patent/KR20140086276A/en
Publication of KR20140086276A publication Critical patent/KR20140086276A/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
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/655—Construction or mounting of chassis, e.g. for varying the elevation of the tube

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

A display device according to an embodiment of the present invention comprises a display body and a stand for supporting the display body, wherein the display body is characterized by comprising a display panel; a backlight unit for radiating a light from the back of the display panel; a middle cabinet which forms the side of the display body; and a back cover combined with the middle cabinet and forming the rear side of the display body. A reflection groove for re-reflecting the light emitted from the backlight unit to the inside of the display body is formed on the inner side of the middle cabinet.

Description

[0001]

The present invention relates to a display device.

A display device is a device that outputs an image signal input from the outside to a screen. The display device is a concept including a monitor for displaying images received from a computer, and an apparatus for displaying an image input from the outside, such as a TV for displaying sound and a sound transmitted from a broadcasting station.

The conventional display device is mainly composed of a cathode ray tube (CRT) type, and a CRT type display device is formed in a box shape occupying a considerable volume, and is installed on a mounting surface such as a desk via a separate stand.

However, as the technology has developed, the display device has been deviated from the CRT mode and has been reduced in thickness to a flat panel display device such as an LCD or a PDP, thereby reducing the overall weight.

In recent years, design changes have been made to minimize or eliminate the size of the bezel surrounding the edge of the screen in accordance with the trend toward larger display screens.

1 is a partial cross-sectional view showing a structure of a conventional display device.

Referring to FIG. 1, a conventional display device includes a display panel 1, a backlight unit 2 for emitting light from the rear of the display panel 1, A back cover 6 constituting a rear surface of the display device; a transparent material 3 attached to a rear edge of the display panel 1; And a panel guide 4 connected to the display panel 3 to support the display panel 1.

In detail, most of the light emitted from the backlight unit 2 moves forward and is irradiated to the display panel 1, so that a video image is output through the display panel 1.

Here, in order to uniformly irradiate the entire surface of the display panel 1 emitted from the backlight unit 2, the picture element 3 attached to the back edge of the display panel 2 is made of a transparent material.

In this case, a part of the light emitted from the backlight unit 2 is reflected toward the middle cabinet 5 and leaks into a gap between the display panel 1 and the panel guide 4. As a result, there is a disadvantage in that the light is leaked to the front of the display screen and the satisfaction degree of the consumer is reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a display device which prevents leakage of light emitted from a backlight unit to the outside of a display device.

According to an aspect of the present invention, there is provided a display apparatus including a display body and a stand supporting the display body, the display body including a display panel; A backlight unit for irradiating light from behind the display panel; A middle cabinet constituting a side portion of the display main body; And a back cover coupled to the middle cabinet and forming a back surface of the display body, wherein a reflective groove is formed on an inner surface of the middle cabinet to reflect light emitted from the backlight unit back into the display body .

According to the display device according to the embodiment of the present invention, the light emitted from the backlight unit leaks into the gap between the display panel and the middle cabinet and is prevented from leaking to the front of the display device .

Accordingly, there is an advantage that the satisfaction degree of the consumer can be enhanced.

1 is a partial cross-sectional view showing a structure of a conventional display device;
2 is an external perspective view of a display device according to an embodiment of the present invention;
Figure 3 is a cross-sectional view taken along line I-I 'of Figure 2;
4 is a partial perspective view showing a middle structure of a middle cabinet of a display device according to an embodiment of the present invention.
5 is a sectional view showing the structure of a reflection groove according to another embodiment of the present invention;
6 is a sectional view showing the structure of a reflection groove according to still another embodiment of the present invention;

A display device according to an embodiment of the present invention is a display device including a display main body and a stand for supporting the display main body, the display main body including: a display panel; A backlight unit for irradiating light from behind the display panel; A middle cabinet constituting a side portion of the display main body; And a back cover coupled to the middle cabinet and forming a back surface of the display body, wherein a reflective groove is formed on an inner surface of the middle cabinet to reflect light emitted from the backlight unit back into the display body .

In the display device according to an embodiment of the present invention, the front end of the middle cabinet is flush with the front surface of the display panel.

The front end and the rear end of the reflective groove are orthogonal to the inner surface of the middle cabinet, and the recessed bottom of the reflective groove is parallel to the outer surface of the middle cabinet.

According to another aspect of the present invention, there is provided a display device, wherein the reflective groove is recessed in a deeper form from a front end to a rear end.

According to another embodiment of the present invention, the front end and the rear end of the reflective groove form an acute angle with the inner side surface of the middle cabinet, and the front end and the rear end of the reflective groove are symmetrical .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 is an external perspective view of a display device according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view taken along line I-I 'of FIG.

2 and 3, a display device 20 according to an embodiment of the present invention includes a display main body and a stand 20 supporting the display main body.

In detail, the display main body includes a liquid crystal display panel 11 on which an image is formed, a backlight unit 14 for irradiating light from the back surface of the display panel 11, And a middle cabinet 17 constituting a side portion of the display main body.

The display main body includes a back cover 18 which forms a back surface of the display main body and is fixed to the middle cabinet 17 and a transparent fixer attached to the back edge of the display panel 11. [ And a panel guide 13 fixed to the fixture 12 and the middle cabinet 17 to support the display panel 11.

The display main body includes a backlight unit cover 16 surrounding the backlight unit 14 and a backlight unit cover 16 which supports the edge of the backlight unit 14 and is fixed to the backlight unit cover 16, And a buffer pad (19) interposed between the support frame and the display panel (11) to prevent shock absorption and foreign matter from entering the display panel (11).

Holes such as fastening holes may be formed on the side surfaces of the panel guide 13 and the support frame 15 and a clearance is formed between the fastening members due to the assembly tolerance therein. Most of the light emitted from the backlight unit 14 is directed toward the display panel 11, but a part of the light may leak to the outside through the holes. The light leaking through the gap may leak to the front of the display main body through the gap between the display panel 11 and the middle cabinet 17. [ In order to minimize the leakage of light to the outside, a reflection groove 171 is formed in a side portion of the middle cabinet 17. The light emitted from the backlight unit 14 is reflected by the reflection groove 171 and then reflected back into the display body.

4 is a partial perspective view illustrating a middle structure of a middle cabinet of a display device according to an embodiment of the present invention.

Referring to FIG. 4, the reflective groove 171 is formed by a part of the inner side surface of the side surface of the middle cabinet 17, which is recessed to a predetermined depth. The reflective groove 171 is formed in a rectangular cross-sectional shape so that the light hitting the reflective groove 171 is reflected to the inside of the display body without leaking through the reflection process.

In addition, the reflective groove 171 may be formed in a continuous strip shape along four side surfaces of the middle cabinet 17. That is, the middle cabinet 17 includes a side surface 172 that surrounds the upper side surface, left and right side surfaces and lower side surfaces of the display panel 11, As shown in FIG. Here, it is noted that the middle cabinet 17 may be formed in an 'n' shape enclosing only the left and right and upper side portions of the display panel 11. The back surface portion 173 may have a width enough to cover a part of the backlight unit cover 16.

In detail, the reflective groove 171 is formed at a predetermined distance from a front end of the side portion 172, that is, a predetermined distance rearward from an end that is flush with the front portion of the display panel 11 . The reflective groove 171 is recessed to a predetermined depth in the thickness direction of the side portion 172. The front end portion and the rear end portion of the reflection groove 171 are formed so as to be perpendicular to the inner side surface of the side portion 172. Therefore, the light emitted from the backlight unit 14 and reflected in the lateral direction of the display body forms an optical path that is incident on the reflective groove 171 and then flows into the display main body again.

5 is a cross-sectional view illustrating a structure of a reflective groove according to another embodiment of the present invention.

Referring to FIG. 5, the reflective groove 171a formed in the middle cabinet 17 according to another embodiment of the present invention may be obliquely recessed as shown in FIG.

In detail, the front end of the reflective groove 171a starts at a position spaced a predetermined distance rearward from the front end of the middle cabinet 17, as in the previous embodiment. However, in the present embodiment, the depth of the depression becomes deeper from the front end to the rear end of the reflection groove 171a. That is, the bottom portion of the hammer portion is formed so as to be inclined in a direction deeper toward the rear. The rear end of the depression may be perpendicular to the inner surface of the side surface of the middle cabinet 17. Accordingly, the light reflected by the reflective groove 171a is reflected to the rear of the display body after hitting the bottom of the depression, and light leaks into a gap between the display panel 11 and the middle cabinet 17 Can be minimized.

6 is a cross-sectional view illustrating a structure of a reflective groove according to yet another embodiment of the present invention.

6, a front end portion and a rear end portion of the reflective groove 171b formed in the middle cabinet 17 according to yet another embodiment of the present invention may have an acute angle to the inner side surface of the side portion 172 of the middle cabinet 17, .

In detail, the front end portion and the rear end portion of the reflection groove 171b may be symmetrical with respect to each other, and may be inclined in a direction away from each other. In other words, the front end portion and the rear end portion of the reflective groove 171b are formed so as not to be orthogonal to the inner side surface of the side portion 172 of the middle cabinet 17. Therefore, the light hitting the front end portion and the rear end portion of the reflective groove 171b is reflected at the front end portion and the rear end portion, and is then extinguished while being repeatedly reflected at the bottom surface of the depressed portion, And then forms an optical path of the reflection type inside the display main body.

The light reflected from the backlight unit 14 is transmitted through the gap formed between the display panel 11 and the middle cabinet 17 by forming the reflective grooves in the side portions of the middle cabinet 17, There is an effect of not leaking out.


Claims (5)

A display device including a display body and a stand supporting the display body,
The display body includes:
A display panel;
A backlight unit for irradiating light from behind the display panel;
A middle cabinet constituting a side portion of the display main body;
And a back cover coupled to the middle cabinet and forming a back surface of the display main body,
And a reflective groove is formed on an inner surface of the middle cabinet to reflect light emitted from the backlight unit back into the display body. The method according to claim 1,
Wherein a front end of the middle cabinet is coplanar with a front surface of the display panel. 3. The method according to claim 1 or 2,
Wherein a front end portion and a rear end portion of the reflective groove are orthogonal to an inner surface of the middle cabinet, and a depressed bottom portion of the reflective groove is parallel to an outer surface of the middle cabinet. 3. The method according to claim 1 or 2,
Wherein the reflective groove is recessed from the front end to the rear end. 3. The method according to claim 1 or 2,
Wherein a front end portion and a rear end portion of the reflective groove form an acute angle with an inner surface of the middle cabinet,
Wherein a front end portion and a rear end portion of the reflective groove are symmetrically formed in directions away from each other.
KR1020120156571A 2012-12-28 2012-12-28 Display apparatus KR20140086276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120156571A KR20140086276A (en) 2012-12-28 2012-12-28 Display apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120156571A KR20140086276A (en) 2012-12-28 2012-12-28 Display apparatus

Publications (1)

Publication Number Publication Date
KR20140086276A true KR20140086276A (en) 2014-07-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120156571A KR20140086276A (en) 2012-12-28 2012-12-28 Display apparatus

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KR (1) KR20140086276A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113470533A (en) * 2021-07-09 2021-10-01 绍兴茁成信息技术有限公司 Digital display device of education information resource

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113470533A (en) * 2021-07-09 2021-10-01 绍兴茁成信息技术有限公司 Digital display device of education information resource

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