KR20170015037A - Show case - Google Patents

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Publication number
KR20170015037A
KR20170015037A KR1020150120221A KR20150120221A KR20170015037A KR 20170015037 A KR20170015037 A KR 20170015037A KR 1020150120221 A KR1020150120221 A KR 1020150120221A KR 20150120221 A KR20150120221 A KR 20150120221A KR 20170015037 A KR20170015037 A KR 20170015037A
Authority
KR
South Korea
Prior art keywords
guide plate
light guide
light
light source
prism
Prior art date
Application number
KR1020150120221A
Other languages
Korean (ko)
Inventor
이아름
민관식
손상현
Original Assignee
삼성전자주식회사
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 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to EP16163404.3A priority Critical patent/EP3123904A1/en
Priority to US15/133,304 priority patent/US20170031081A1/en
Priority to CN201610325875.8A priority patent/CN106388426A/en
Publication of KR20170015037A publication Critical patent/KR20170015037A/en

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F11/00—Arrangements in shop windows, shop floors or show cases
    • A47F11/06—Means for bringing about special optical effects
    • A47F11/10—Arrangements of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/65—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • 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
    • G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The light guide plate includes a plurality of prism grooves recessed in a triangular groove shape on the entire surface of the light guide plate. The light guide plate includes a light guide plate, Most of the light incident on the display panel is emitted to the front side again via the exhibition room located on the rear side by the prism grooves so that the exhibition room can be illuminated with the light source used in the display panel and the additional light source for illuminating the display can be eliminated , The showcase can be made thinner.

Description

Showcase {SHOW CASE}

The present invention relates to a show case used for displaying a product.

In general, showcases are used to display various exhibits.

Such a show case includes a housing that forms an exhibition room in which an exhibition is held, a transparent plate such as tempered glass that covers the front of the housing, and a light source that generates light, , And to be able to see the exhibit from the outside better.

In recent years, there has been a show case in which a display panel made of a liquid crystal panel or the like is arranged in place of a transparent plate so that an image can be seen together with an exhibit.

One aspect of the present invention is to provide a showcase which is made thinner.

A showcase according to an aspect of the present invention includes a light guide plate disposed on a front side of an object to be displayed, and a light source disposed opposite to at least one of four sides of the light guide plate, wherein the light guide plate has a triangular groove shape And a plurality of prism grooves provided concavely in the circumferential direction.

The light source includes a pair of light sources corresponding to the left and right sides of the light guide plate, and the prism grooves are formed in an isosceles triangle shape in which the two hypotenuses correspond to the left and right sides of the light guide plate.

In addition, the apex angle of the prism grooves is formed at an angle of 80 degrees or more and 140 degrees or less.

In addition, the length of the hypotenuse of the prism grooves is formed to be 50 mu m or less.

The light source includes a substrate extending to correspond to one side of the light guide plate, and a plurality of light emitting diodes disposed on the substrate.

In addition, the size of the prism groove provided in a portion adjacent to the light source is smaller than the size of the prism groove provided in a portion apart from the light source.

In addition, a gap between the prism grooves provided at a portion adjacent to the light source is formed to be larger than a gap between the prism grooves provided at a portion apart from the light source.

The display device further includes a display panel disposed on the front side of the light guide plate.

The display device further includes a housing disposed on a rear side of the light guide plate to form an exhibition room in which an exhibition to be displayed is received.

According to another aspect of the present invention, there is provided a showcase comprising a display module, and a housing disposed on a rear side of the display module and having an exhibition room accommodated therein, the display module including a display panel, And a light source disposed opposite to at least one of the upper, lower, right, and left sides of the light guide plate. The light guide plate includes a plurality of prism grooves recessed in a triangular groove shape on the entire surface thereof.

The display module includes a middle mold for supporting the display panel, a front chassis coupled to a front side of the middle mold to maintain the display panel installed in the middle mold, And a rear chassis coupled to the rear side of the middle mold, wherein the middle mold, the front chassis, and the rear chassis are each formed into a square ring shape so that light can pass therethrough.

As described above, the showcase according to the present invention includes a light source corresponding to the side surfaces of the light guide plate and the light guide plate, and the prism grooves are provided on the front surface of the light guide plate, so that most of the light incident into the light guide plate from the light source is located on the rear side The display room can be illuminated through the light source used in the display panel, so that the additional light source for illuminating the display can be eliminated, and the showcase can be made thinner.

1 is a perspective view of a show case according to a first embodiment of the present invention.
2 is a sectional view of a show case according to the first embodiment of the present invention.
3 is an exploded perspective view of a show case according to a first embodiment of the present invention.
4 is a sectional view of a display module applied to a show case according to the first embodiment of the present invention.
5 is a sectional view of a light guide plate and a light source applied to a show case according to the first embodiment of the present invention.
6 is a sectional view of a light guide plate and a light source applied to a show case according to a second embodiment of the present invention.
7 is a sectional view of a light guide plate and a light source applied to a show case according to a third embodiment of the present invention.
8 is a perspective view of a show case according to a fourth embodiment of the present invention.

Hereinafter, a show case according to an embodiment of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, a showcase according to an embodiment of the present invention accommodates an exhibit P to be exhibited inside and irradiates light on the exhibit P, So that it can be seen.

The show case includes a display module 10 for displaying an image as shown in Figs. 3 and 4, a housing 20 for housing an exhibition room 20a, which is coupled to the rear side of the display module 10, And a stand 30 coupled to a lower side of the display module 10 and the housing 20 and having a display module and a housing 20 mounted on the upper side thereof.

The display module 10 includes a display panel 11, a light guide plate 12 disposed on the rear side of the display panel 11 and guiding light, and a light guide plate 12 disposed opposite to both left and right sides of the light guide plate 12, And two light sources 13 for supplying light toward left and right sides.

A middle mold 14 for supporting the display panel 11 and a display panel 11 are provided between the display panel 11 and the light guide plate 12 so that the display panel 11 is supported by the middle mold 14 And a rear chassis 16 which is housed inside the light guide plate 12 and the light source 13 and is coupled to the rear side of the middle mold 14. The rear chassis 15 includes a front chassis 15,

The display panel 11 is formed of a rectangular plate-shaped liquid crystal panel and receives light supplied through the light guide plate 12 disposed on the rear side to express an image.

The light guide plate 12 is formed in a rectangular plate shape corresponding to the display panel 11 and is made of a transparent material so that light can pass therethrough.

The front surface of the light guide plate 12 is provided with a reflection pattern for reflecting the light toward the rear side as shown in Fig. The reflection pattern is formed by prism grooves 12a having a triangular cross section as shown in the figure. The lower side of the prism groove 12a faces the side of the display panel 11 and the two sides of the prism groove 12a correspond to both sides of the light guide plate 12 on which the light source 13 is disposed.

In this embodiment, the prism grooves 12a are formed in an isosceles triangle shape having the same length of two hypotenuses, and the length of the hypotenuse is formed to be 50 mu m or less. The vertex angle of the prism grooves 12a is not less than 80 degrees and not more than 140 degrees. This is because most of the light incident on the two sides of the light guide plate 12 passes through two oblique sides of the prism grooves 12a, As shown in Fig.

The light sources 13 are disposed on one surface of a substrate 13a facing the side surface of the light guide plate 12 and formed in a bar shape extending vertically so as to correspond to the left or right side of the light guide plate 12, (13b) for emitting light toward the side surface of the light emitting diode (12). The light emitting diodes 13b are vertically disposed on one surface of the substrate 13a.

The middle mold 14, the front chassis 15, and the rear chassis 16 are each formed into a square ring shape. This is because the middle mold 14, the front chassis 15 and the rear chassis 16 support the outer side of the display panel 11 and the light guide plate 12 while the light passing through the light guide plate 12 passes through the front display panel 11 or the rear housing 20 side.

The housing 20 is formed in a shape of a box having a substantially open front so that the inside of the housing 20 forms an exhibition room 20a in which the exhibition P is received and a reflection rate of about 80% A white reflecting layer (not shown) is provided.

The stand 30 is disposed under the display module 10 and the housing 20 to support the display module and the housing 20. Various substrates 13a and the like for driving the display module 10 . The stand allows the exhibit P to be disposed at a predetermined height or higher, so that a person can more easily see the exhibit P inside the exhibition room 20a.

The following describes the operation of the show case configured as described above.

First, light is generated in the light emitting diodes 13b of the two light sources 13 in a state where the exhibit P is disposed in the exhibition room 20a. Light generated in the light emitting diodes 13b is incident into the light guide plate 12 through both left and right side surfaces of the light guide plate 12. [ Most of the light incident into the light guide plate 12 travels along the light guide plate 12 and is reflected toward the rear side by the hypotenuse of the prism grooves 12a provided on the front surface of the light guide plate 12. [ The reflected light is emitted to the rear side through the rear surface of the light guide plate 12 and is transmitted to the exhibition room 20a formed in the housing 20 to illuminate the inside of the exhibition room 20a to illuminate the exhibition P. Since the white reflecting layer is formed on the inner surface of the housing 20 forming the exhibition room 20a, the light is again reflected to the front side by the inner surface of the exhibition room 20a and is guided through the rear surface of the light guide plate 12 12). The light incident on the light guide plate 12 through the rear surface passes through the light guide plate 12 and is supplied to the display panel 11.

Therefore, most of the light generated by the light source 13 is reflected to the rear side by the prism grooves 12a and used once to illuminate the inside of the exhibition room 20a, and then, by the inner surface of the housing 20 forming the exhibition room 20a And is reflected back toward the front side to be supplied to the display panel 11. [

Therefore, a separate additional light source for illuminating the display P can be eliminated, and the showcase can be made thinner.

In the present embodiment, the prism grooves 12a are arranged at the same size and spacing, but the present invention is not limited thereto. As shown in Fig. 6, 1 may be formed to be relatively smaller than the prism grooves 12a-1 at the portions spaced apart from the light source 13. [ That is, the prism groove 12a-1 can be formed to have a larger size as the distance from the light source 13 increases.

If the size of the prism grooves 12a-1 is different from that of the prism grooves 12a-1, the reflection of light by the relatively small prism grooves 12a-1 at a portion where a relatively large amount of light reaches the light source 13, Relatively little occurs. In addition, relatively large amount of light reflection is caused by relatively large prism grooves 12a-1 at a portion where a relatively small amount of light is separated from the light source 13. Therefore, the reflection of light by the prism grooves 12a-1 can be uniformly performed on the entire surface of the light guide plate 12 as a whole.

7, the size of the prism grooves 12a-2 is formed to be constant, as shown in the third embodiment of the present invention. In the vicinity of the light source 13, the prism grooves 12a- The gap between the prism grooves 12a-2 may be formed to be relatively small at a portion spaced apart from the light source 13. [ That is, as the distance from the light source 13 increases, the number of the prism grooves 12a-2 increases.

By forming the prism grooves 12a-2 in such a manner that the distance between the prism grooves 12a-2 and the light source 13 is relatively large, a relatively small number of prism grooves 12a- Reflections are relatively small. Also, at a portion where a relatively small amount of light is separated from the light source 13, a relatively large number of the prism grooves 12a-2 causes a relatively large amount of light reflection. Therefore, the reflection of light by the prism grooves 12a-2 can be uniformly performed entirely on the entire surface of the light guide plate 12. [

In the present embodiment, the show case includes the housing 20 so that the exhibit P is accommodated therein. However, the present invention is not limited thereto. As shown in FIG. 8, It is possible to rest on the upper surface of the stand 30.

In this embodiment, the display panel 11 is disposed on the front side of the light guide plate 12 to display images through the display panel 11. However, the present invention is not limited thereto, The present invention can be applied to a show case in which an image can not be displayed because a member is disposed.

In this embodiment, two light sources 13 are provided so as to be opposed to the right and left side surfaces of the light guide plate 12, but the present invention is not limited thereto, and the two light sources may be disposed opposite to the upper and lower sides of the light guide plate, It may be arranged so as to be opposed to the upper, lower, left, and right sides.

In the present embodiment, the light source 13 includes the substrate 13a and the light emitting diode 13b, but the present invention is not limited thereto, and the point light sources such as the light emitting diodes and the linear light sources extending to correspond to the side surfaces of the light guide plate may be used as the light source Can be used.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

10: Display module 11: Display panel
12: light guide plate 12a: prism groove
13: light source 13a: substrate
13b: light emitting diode 14: middle mold
15: Front Chassis 16: Rear Chassis
20: housing 20a: exhibition room
30: Stand

Claims (13)

A light guide plate disposed on a front side of an object to be displayed,
And a light source disposed opposite to at least one of the upper, lower, left, and right sides of the light guide plate,
Wherein the light guide plate includes a plurality of prism grooves recessed in a triangular groove shape on the entire surface thereof. The method according to claim 1,
Wherein the light source includes a pair of light sources corresponding to left and right sides of the light guide plate,
Wherein the prism grooves are formed in an isosceles triangle shape in which the two hypotenuses correspond to the left and right sides of the light guide plate. 3. The method of claim 2,
Wherein a vertex angle of the prism grooves is formed at an angle of not less than 80 degrees and not more than 140 degrees. 3. The method of claim 2,
Wherein a length of the hypotenuse of the prism grooves is less than 50 mu m. The method according to claim 1,
Wherein the light source includes a substrate extended to correspond to one side of the light guide plate, and a plurality of light emitting diodes disposed on the substrate. The method according to claim 1,
Wherein a size of the prism groove provided at a portion adjacent to the light source is smaller than a size of the prism groove provided at a portion apart from the light source. The method according to claim 1,
Wherein a distance between the prism grooves provided at a portion adjacent to the light source is larger than a distance between the prism grooves provided at a portion spaced apart from the light source. The method according to claim 1,
And a display panel disposed on a front side of the light guide plate. The method according to claim 1,
And a housing disposed on a rear side of the light guide plate to form an exhibition room in which an exhibition to be displayed is received. A display module,
And a housing disposed on a rear side of the display module and having an exhibition room accommodated therein,
The display module includes a display panel, a light guide plate for guiding light, and a light source disposed opposite to at least one of the upper, lower, left, and right sides of the light guide plate,
Wherein the light guide plate includes a plurality of prism grooves recessed in a triangular groove shape on the entire surface thereof. 11. The method of claim 10,
The display module includes a middle mold for supporting the display panel, a front chassis coupled to a front side of the middle mold to maintain a state in which the display panel is installed in the middle mold, And a rear chassis coupled to the rear side of the middle mold,
Wherein the middle mold, the front chassis, and the rear chassis are each formed into a square ring shape so that light can pass therethrough. 11. The method of claim 10,
Wherein a size of the prism groove provided at a portion adjacent to the light source is smaller than a size of the prism groove provided at a portion apart from the light source. 11. The method of claim 10,
Wherein a distance between the prism grooves provided at a portion adjacent to the light source is larger than a distance between the prism grooves provided at a portion spaced apart from the light source.
KR1020150120221A 2015-07-31 2015-08-26 Show case KR20170015037A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16163404.3A EP3123904A1 (en) 2015-07-31 2016-03-31 Showcase
US15/133,304 US20170031081A1 (en) 2015-07-31 2016-04-20 Showcase
CN201610325875.8A CN106388426A (en) 2015-07-31 2016-05-17 Showcase

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562199373P 2015-07-31 2015-07-31
US62/199,373 2015-07-31

Publications (1)

Publication Number Publication Date
KR20170015037A true KR20170015037A (en) 2017-02-08

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ID=58155533

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150120221A KR20170015037A (en) 2015-07-31 2015-08-26 Show case

Country Status (1)

Country Link
KR (1) KR20170015037A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102478001B1 (en) * 2022-04-07 2022-12-19 주식회사 멤스룩스 Lighting case

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102478001B1 (en) * 2022-04-07 2022-12-19 주식회사 멤스룩스 Lighting case

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