WO2014061902A1 - 균일한 광출력이 가능한 투명전광판 - Google Patents
균일한 광출력이 가능한 투명전광판 Download PDFInfo
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- WO2014061902A1 WO2014061902A1 PCT/KR2013/006477 KR2013006477W WO2014061902A1 WO 2014061902 A1 WO2014061902 A1 WO 2014061902A1 KR 2013006477 W KR2013006477 W KR 2013006477W WO 2014061902 A1 WO2014061902 A1 WO 2014061902A1
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- Prior art keywords
- light emitting
- transparent
- connection pattern
- anode
- emitting device
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
- F21V19/0025—Fastening arrangements intended to retain light sources the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
- F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
-
- 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
- G09F9/33—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 being semiconductor devices, e.g. diodes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional [2D] array of point-like light-generating elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
- G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S362/00—Illumination
- Y10S362/812—Signs
Definitions
- the present invention relates to a transparent display board capable of uniform light output, in detail, by adjusting the width and length of the pattern according to the sheet resistance of the transparent electrode so that a plurality of light sources installed in the transparent display board can emit light with a uniform intensity
- the present invention relates to a transparent light emitting plate capable of uniformly supplying a driving voltage applied to a light emitting device within a predetermined range.
- a neon a cold cathode lamp (CCL: Cold Cathode Lamp)
- LED a light emitting diode
- an external electrode fluorescent lamp (EEFL) a cold cathode fluorescent lamp (CCFL)
- CCFL cold cathode fluorescent lamp
- a light emitting diode display board and the like are used.
- the neon or cold cathode discharge tube has a disadvantage that the power consumption is high by using a high voltage power, there is a risk of electric shock and fire, and the life is short.
- EEFL or CCFL has a disadvantage in that it is difficult to use outdoors in that it uses a high frequency, has a low illuminance and short lifespan.
- the back surface of the surface emitting light by the processing of the electric wire, the black film treatment, etc. of the rear surface is blocked by the cover, and has the characteristic of emitting light in only one direction.
- the light emitting device is used as an advertisement signboard rather than simply used as a function of lighting, and has been widely used in interiors and the like as a design with an added aesthetic sense.
- the light emitting devices as described above are limited in providing aesthetic sense due to the limitation of the size of a lamp, the size of a stand for supporting the light emitting device, and the like.
- a plurality of light emitting elements are attached to the transparent electrode to impart the above aesthetic sensation, and the light is controlled by the controller to emit light to display characters or figures on the transparent electrode, and furthermore, to display a moving image. This was released.
- the transparent display board a plurality of light emitting devices are connected to a transparent electrode, and a light emitting device having two electrodes, a light emitting device having three electrodes and four electrodes has been generally applied.
- FIG. 1 A connection pattern diagram of the transparent display board to which the 4-electrode light emitting device is applied in the conventional transparent display board is shown in FIG. 1.
- 1 is a connection pattern diagram showing a conventional transparent display board.
- a conventional transparent display board is coated with a plurality of light emitting devices 1 and fixed by a transparent resin between transparent electrodes 2 positioned to face each other, and coated on the transparent electrodes 2.
- Connection patterns 2a to 2d of transparent electrodes connected to any one electrode of the light emitting device 1 to supply power, and conductive tapes 2a 'to power supply to the connection patterns 2a to 2d of the transparent electrodes. 2d ').
- the plurality of light emitting devices 1 is a four-electrode light emitting device 1, in which one cathode electrode and three anode electrodes are formed to extend from different transparent electrode conductive tapes 2a 'to 2d'. It is connected to the connection patterns 2a to 2d, respectively.
- the plurality of light emitting devices 1 are formed by aligning columns in the vertical direction, and the plurality of light emitting devices 1 are arranged in the vertical direction.
- connection patterns 2a to 2d extend from the transparent electrode conductive tape and are connected to the anode electrode and the cathode electrode of the four-electrode light emitting device 1, respectively.
- the connection patterns 2a to 2d may be divided to be insulated so as not to contact each other.
- connection patterns (2a ⁇ 2d) is a shape extending from the both ends to the light emitting device (1) arranged in sequence in the central portion. That is, first, the first connection pattern 2a connected to the cathode electrode and the second to fourth connection patterns 2b to 2d connected to the anode electrode are sequentially connected to perform the role of the ground terminal. After the fourth connection pattern 2d, the fifth to seventh connection patterns 2e to 2g which are connected to the anode electrode again extend. Here, the first connection pattern 2a connected to the cathode electrode is formed again after the seventh connection pattern 2g connected to the anode electrode.
- the conventional transparent display board is connected to the cathode electrode of the light emitting device is used according to the number of light emitting devices arranged in the vertical or horizontal direction connected to the connection pattern is used in the manufacturing process is added to the manufacturing cost is added to the manufacturing cost There is a problem that raises, and decreases productivity.
- the extension lengths of the connection patterns connected to the electrodes of the respective light emitting devices are different, but the widths of the transparent electrodes are the same.
- the conventional transparent LED has a sheet resistance of the transparent electrode itself and a resistance per unit area of the connection pattern, so that the range of voltage loss varies according to the width and length of the connection pattern, so that the light emission is connected at the longest extending length of the connection pattern.
- the driving voltages applied to the light emitting device having the shortest length of the device and the connection pattern are different from each other.
- the conventional transparent display board outputs non-uniform light with different intensities as different driving voltages are applied to each of the light emitting devices fixed at different positions, thereby realizing clean image quality when implementing an image or a video. There is this difficult problem.
- the present invention has been made to solve the conventional problems as described above, the present invention by selectively forming the width of the connection pattern for supplying power to the light emitting device in the transparent display board in consideration of the sheet resistance and length of the transparent electrode to the entire light emitting device It is to provide a transparent electronic display board capable of uniform light output.
- the present invention is connected to a transparent electrode for supplying power to at least one light emitting device that is emitted by a power applied fixedly applied to at least one surface of a pair of transparent plates are bonded to each other by a transparent resin filled in between As the length of the connection pattern that transmits the red signal increases, the width of the connection pattern increases, thereby providing a transparent electronic display board capable of uniform light output for correcting a difference in voltage loss due to resistance.
- the entire light emitting device installed in the transparent display board has a uniform light output. It is possible to implement precise images and videos, and to provide a screen with clean image quality.
- 1 is a plan view showing a conventional transparent electronic sign
- FIG. 2 and 3 is a view showing a transparent sign board in a transparent sign board capable of uniform light output according to the present invention
- FIG. 4 is an enlarged view of a light emitting device in a transparent electronic display board capable of uniform light output according to the present invention
- FIG. 5 is a view showing a first comparative example of a transparent electronic display board capable of uniform light output according to the present invention
- FIG. 6 is a view showing a first experimental example in a transparent electronic board capable of uniform light output according to the present invention.
- FIG. 7 is a view illustrating a second comparative example in a transparent electronic display board capable of uniform light output according to the present invention.
- FIG. 8 is a view showing a second experimental example in the transparent electronic board capable of uniform light output according to the present invention.
- the present invention includes the following examples to achieve the above object.
- a preferred embodiment of the transparent electronic board capable of uniform light output according to the present invention is one that emits light by a power source fixedly applied to at least one surface of a pair of transparent plates bonded by transparent resins spaced apart from each other.
- Light emitting elements A transparent electrode coated with a conductive material on the transparent plate to energize the at least one light emitting device; And a connection pattern which is etched from the transparent electrode and is connected to each electrode of the light emitting device and extends with a different length to transmit an electrical signal, wherein the connection pattern is connected as the length of the connection pattern becomes longer. It is characterized in that the width of the pattern is increased.
- the width of the connection pattern is
- L is the length of the connection pattern
- W is the width of the connection pattern
- the sheet resistance of the transparent electrode is the sheet resistance value of the transparent electrode itself
- the rated voltage is the voltage applied to the transparent display board
- I is the current value applied to the light emitting element in the connection pattern
- the light emitting device includes at least one anode electrode and one cathode electrode to which the connection pattern is connected, and the connection pattern is connected to each of the at least one anode electrode in the transparent electrode.
- the transparent electrode plate is the at least one of the upper, lower, left, right end of the transparent plate and the cathode connection pattern and the anode connection pattern is sequentially extended so that the connection end is connected to the transparent conductive tape
- the connection end of the cathode connection pattern is formed at the uppermost side of the connection end, and the connection end of the at least one anode connection pattern extends sequentially from the connection end to the lower end of the connection end of the cathode connection pattern.
- the anode connection pattern is respectively connected to at least one anode electrode in the light emitting device, at least one or more are spaced apart with the cathode connection pattern therebetween and connected to the anode electrode.
- At least one light emitting device is aligned in a horizontal or vertical direction, and the anode connection pattern extends the same number as the number of anode electrodes of the light emitting device.
- FIGS. 2 and 3 are views showing a transparent display board in a transparent display board capable of uniform light output according to the present invention
- Figure 4 is an enlarged view showing a light emitting device in a transparent display board capable of uniform light output according to the present invention.
- the transparent electronic display panel according to the present invention is spaced apart from each other and bonded to a pair of transparent plates 10 and one of the pair of transparent plates 10 by a transparent resin.
- the transparent electrodes 21 to 24 made of a conductive material to guide the power and are fixed to any one of the pair of transparent plates 10 to emit light by a power applied through the transparent electrodes 21 to 24.
- Transparent electrode conductive tape 25 is included.
- the transparent plate 10 has two transparent plates 10 are opposed to each other and the transparent resin is filled and bonded therebetween.
- the transparent plate 10 may be made of any one of a glass plate of a transparent electrode material, acrylic and polycarbonate. Coupling relationship between the transparent plate 10 and the light emitting device 20 as described above is omitted in the drawings and detailed description separately according to the known technology.
- the light emitting device 20 is a light emitting device that blinks in accordance with the supply of power, and a plurality of conductive resins are formed on the transparent electrodes 21, 22, and 23 formed on any one surface of the pair of transparent plates 10. Not shown).
- the light emitting device 20 has a lower end fixed to the transparent electrodes 21, 22, and 23, and is protected by a transparent resin at an upper side thereof, and then bonded to other transparent electrodes.
- the light emitting device 20 includes anodes 20a to 20c and a cathode electrode 20d.
- the anode electrodes 20a, 20b and 20c have a positive power supply, and the cathode electrode 20d has a negative power source. do.
- the light emitting device 20 includes a two-electrode light emitting device having one anode electrode 20a to 20c and one cathode electrode 20d, a three-electrode light emitting device having two anode electrodes and one cathode electrode; Any one of the four-electrode light emitting device 20 having three anode electrodes and one cathode electrode may be applied. In the present invention, a four-electrode light emitting device is applied as an example.
- the transparent electrodes 21 to 24 are formed by coating any one of a conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO), and a liquid polymer on one surface of the pair of transparent plates facing the other one.
- a conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO), and a liquid polymer
- ITO indium tin oxide
- IZO indium zinc oxide
- a liquid polymer on one surface of the pair of transparent plates facing the other one.
- each of the partitioned transparent electrodes 21 to 24 is partitioned so as to be connected to the anode electrodes 20a, 20b, 20c and the cathode electrode 20d of the light emitting device 20, respectively, and is applied to the controller 30.
- the signal is transmitted to the light emitting device 20.
- the regions partitioned so as to be connected to the anode electrodes 20a, 20b and 20c and the cathode electrode 20d of the light emitting device are respectively connected to the anode connection patterns 21 to 23 and the cathode connection pattern ( 24) will be given a name and explained.
- connection patterns of the transparent electrodes 21, 22, 23, and 24 may include one or more anode connection patterns respectively connected to one or more anode electrodes 20a, 20b, and 20c formed in one light emitting device 20. And a plurality of groups including 21 to 23 and one cathode connection pattern 24 connected to the cathode electrode 20d.
- the anode connection patterns 21 to 23 have numbers corresponding to the number of anode electrodes 20a, 20b, and 20c of each light emitting device 20, but the cathode connection patterns 24 are a plurality of light emission. Commonly connected to the cathode electrode 20d of the device 20.
- the transparent electrodes 21 to 24 may include, for example, first to third anode connection patterns to third anode connections respectively connected to the first to third anode electrodes 20a, 20b, and 20c in the four-electrode light emitting device 20.
- a plurality of groups 21 to 23 having patterns 211 to 213 are formed.
- the first group 21 of the anode connection patterns may include a first anode connection pattern 211 and a second anode electrode 20b connected to the first anode electrode 20a of the first light emitting device 20. ) And a second anode connection pattern 212 connected to the second anode connection pattern 212 and a third anode connection pattern 213 connected to the third anode electrode 20c.
- the second group 22 and the third group 23 of the anode connection pattern are respectively connected to the anode electrodes of the second light emitting device 20 ′ and the third light emitting device 20 ′′, respectively.
- Third anode connection patterns 221, 222, 223, 231, 232, and 233 are included.
- the cathode connection pattern 24 is commonly connected to the cathode electrodes 20d respectively formed in the plurality of light emitting devices 20 in common.
- one cathode connection pattern 24 is commonly connected to the cathode electrodes 20d of the plurality of light emitting devices 20 installed on the transparent display board, and the anode electrodes of the plurality of light emitting devices 20 are provided.
- Anode connection patterns 21 to 23 are formed in 20a, 20b, and 20c, respectively.
- the groups 21 to 23 of the anode connection patterns extend from one end of the transparent plate 10 to the other side and are connected to respective light emitting devices arranged laterally.
- each of the groups 21 to 23 of the anode connection pattern has different lengths depending on the positions of the light emitting devices 20, 20 ', and 20' ', and the length and the resistance per unit area of the anode connection pattern are different.
- the width of the anode connection pattern (21 ⁇ 23) is set differently.
- the transparent electrode conductive tape 25 is attached to the connection ends of the anode connection patterns 21 to 23, respectively.
- the transparent electrode conductive tape 25 is bonded to the starting point of the anode connection patterns 21 to 23.
- the transparent electro-optical plate may be formed by sequentially extending the cathode connection patterns 24 and the groups 21 to 23 of the anode connection patterns at at least one of upper, lower, left, and right ends of the transparent plate 10.
- the connection end 26 connected to 25 is aligned.
- connection end 26 has a connection end connected to the cathode connection pattern 24 at the uppermost side, and each group connected to the one or more anodes below the connection end of the cathode connection pattern 24 (
- the connection ends 26 of the anode connection patterns 211 to 233 corresponding to 21 to 23 are sequentially formed.
- each of the anode connection patterns 211 to 233 included in the groups 21 to 23 may be connected to one or more anode electrodes in the light emitting devices 20, 20 ′, and 20 ′′, and at least one of the cathodes may be connected to each other.
- the connection patterns 24 are spaced apart and connected to the anode electrodes 20a to 20c (see the second anode connection pattern 212 and the third anode connection pattern 213 of FIG. 4).
- each of the anode connection patterns 211 to 233 of the groups 21 to 23 extends from the transparent electrode conductive tape 25 to be connected to the anode electrodes 20a, 20b, and 20c of the different light emitting devices 20, respectively. do.
- the cathode connection pattern 24 corresponds to the entire remaining area other than the area where the anode connection patterns 211 to 233 are formed.
- the present invention is a conventional problem that the intensity of light output of each light emitting device (20.20 ', 20' ') is not uniform due to the deviation of the length of the anode connection pattern (211 ⁇ 233) and the resistance value per unit area
- the widths of the anode connection patterns 211 to 233 connected to the anode electrodes of the light emitting devices 20. 20 ′ and 20 ′′ are sequentially increased according to sheet resistance and length. This is explained in more detail below.
- FIG. 5 is a view showing a first comparative example in a transparent light emitting plate capable of uniform light output according to the present invention
- Figure 6 is a first experimental example for explaining a transparent light emitting plate capable of uniform light output according to the present invention.
- the first to third groups 210 to 230 and 210 'to 230' are connected to the first to third light emitting devices 20, 20 'and 20' ', respectively.
- Anode connection patterns 211 ⁇ 233 (211 ′ 233 ′), and the first to third groups 210 ⁇ 230 are groups of anode connection patterns 21 ⁇ connected to the respective light emitting devices. 23), and as an example, it is shown in Figure 5 and 6 formed in one pattern each.
- the first to third light emitting devices connected to the ends of the first to third anode connection patterns are not shown.
- the first experimental example and the first comparative example include first groups 210 'and 210 connected to the first light emitting device 20 and second groups 220' and 220 connected to the second light emitting device 20 '. ) And third groups 230 and 230 ′ connected to the third light emitting device 20 ′′, and the lengths L1, L2 and L3 extending for each group are different.
- the widths of the anode connection patterns 211 to 233 of the groups 210 to 230 were sequentially increased according to the extension length, and the first comparative example was the anode connection pattern 211 'regardless of the length of the extension. 233 ') are set to equal width.
- the light emitting device 20 may include the anode connection patterns 211 to 233 and 211 'to 233' corresponding to the first to third groups 210, 210 ′ 220, 220 ′, 230 and 230 ′.
- One or more coupling ends 210a, 210a ', 210b, 210b', 210c, and 210c ', which are formed to be bent horizontally at the ends, are formed on the light emitting devices 20, 20', and 20 '', respectively. 20c).
- the first experimental example and the first comparative example compare the current values applied to the light emitting devices 20, 20 ', and 20' 'at the coupling ends 210a, 210a', 210b, 210b ', 210c, and 210c'. Measured and compared the change in the current value as the width increases with the length. The current value is calculated through the following equations (1) and (2).
- L is the length of the anode connection pattern
- W is the width of the anode connection pattern
- the sheet resistance of the transparent electrode is the sheet resistance of the transparent electrode itself
- V is the rated voltage
- I is the current value applied to the light emitting element in the anode connection pattern
- the sheet resistance value of the transparent electrode may vary depending on, for example, the specifications of each manufacturer or product, and in general, 14 ⁇ is the most applied product in the same industry.
- the driving current applied to the first to third light emitting devices 20, 20 ', and 20' 'can be maintained at a uniform level within a predetermined range by adjusting the width or length of the anode connection pattern. Therefore, the first to third light emitting devices 20, 20 ', and 20' 'can be output in a uniform amount of light.
- the present invention can also adjust the drive current value applied to the light emitting devices 20, 20 ', 20' 'by adjusting the width of the anode connection pattern (211 ⁇ 233), as described above, or by the designer or user Application Example It is also possible to adjust the driving current of the light emitting device by adjusting the length, not the width of the anode connection pattern.
- the setting of a uniform driving current value by adjusting the width or length of the anode connection pattern corresponds to any one of various application examples within the scope of the technical idea of the present invention.
- Table 1 shows the data of measuring the drive current of the first comparative example.
- the rated voltage is 12V
- the first to third light emitting devices 20, 20 ', and 20' ' are applied with products having the same specifications as 5mA of reference current.
- the driving current measured the current applied to the coupling end connected to the electrodes of the light emitting devices (20, .20 ', 20' '), and set the sheet resistance of the transparent electrode to 14 ( ⁇ ) and the rated voltage to 12V The same voltage was applied to the entire anode connection pattern.
- the first driving current is coupled at the coupling ends 210a 'to 230a' of the anode connection patterns of the first to third groups 210 'to 230' calculated through the first etching area resistance values determined through the product specifications.
- the second driving current is a value measured at the coupling terminals 210a 'to 230a' of the connection patterns of the first to third groups 210 'to 230' that are actually measured.
- the anode connection patterns 211 'to 233' of the first to third groups 210 'to 230' have the shortest length of the anode connection patterns 211 'to 213' of the first group 210 ',
- the measurement current of the coupling terminals 210a 'to 230a' varies with a maximum deviation of 12 mA depending on the length of the anode connection pattern.
- Table 2 is the data which measured the drive current of a 1st experiment example, respectively.
- the length (L1, L2, L3) of the anode connection pattern of the first experimental example is the same as the length (L1, L2, L3) of the first comparative example, but as the length is increased the width.
- the test conditions were a rated voltage of 12V, the reference current value of the light emitting device is 5mA and the product of the same specification as the first comparative example was applied.
- the width of the anode connection patterns (211 ⁇ 213) of the first group 210 is 0.5mm
- the width of the anode connection patterns (221 ⁇ 223) of the second group 220 is 2.5mm
- the width of the third group (230) The widths of the anode connection patterns 231 to 233 were 4 mm, and the widths of the anode connection patterns 231 to 233 were increased as the lengths L1, L2, and L3 of the anode connection patterns were extended.
- the first driving current and the second driving current are the anode connection patterns 211 to 213 of the first group 210 and the anode connection patterns 231 of the third group 230.
- the deviation of the values measured at the coupling ends 210a and 230a of ⁇ 233) did not exceed 1.2 mA at maximum.
- the driving current applied to the light emitting devices 20, 20 ', and 20' 'at the coupling ends 210a to 230a of the anode connection patterns for each group 210 to 230 is increased when the width of the anode connection pattern is increased.
- the current loss is compensated according to the length of the anode connection patterns (211 ⁇ 233).
- the Applicant has a second comparative example in which the width of the anode connection pattern is constant and the width of the anode connection pattern are sequentially increased through the transparent display board to which the four-terminal light emitting device designed to be composed of four anode connection patterns in each group is applied.
- the second experimental example was compared.
- FIG. 7 is a view illustrating a second comparative example in the transparent electronic display board capable of uniform light output according to the present invention
- FIG. 8 is a second experimental example for explaining the transparent electronic display board capable of uniform light output according to the present invention.
- one or more anode connection patterns 211 to 233 formed by forming a pattern by etching transparent electrodes 21 to 24 formed by applying a conductive material on one surface of the transparent plate 10 may be formed.
- the light emitting devices 20, 20 ', and 20' ' will be described using light emitting devices having four terminal electrodes as an example.
- the cathode electrodes of each light emitting device are commonly connected by the cathode connection pattern 24. .
- Each of the groups 210 'to 230' including the one or more anode connection patterns 211 'to 233' sequentially increases in length for each group, and the first to the first to second groups 210 'to 230'.
- the third anode connection patterns 211 ′ through 233 ′ are connected to the anode electrodes of the light emitting devices 20, 20 ′, and 20 ′′.
- Each of the anode connection patterns 211 ′ through 233 ′ of the first to third groups 210 ′ through 230 ′ has the same width as 1 mm and has a same width as that of the third group 230 ′ in the first group 210 ′. In order, the length is gradually increased.
- first to third anode connection patterns 211 ′ to 213 ′ connected to the electrodes of the first light emitting device 20 are formed, and the anode of the second group 220 ′ is formed.
- the connection patterns 221 'to 223' are formed with fourth to sixth anode connection patterns 221 'to 223' connected to the electrodes of the second light emitting device 20 ', and the third group 230'.
- the seventh to ninth anode connection patterns 231 'to 233' connected to the respective electrodes of the third light emitting device 20 '' are formed.
- the widths of the first to ninth anode connection patterns 211 ′ to 233 ′ are the same, and the lengths thereof are different for each group.
- the measurement data of the second comparative example is as follows.
- the rated voltage is 12V
- the reference current is 5mA
- the sheet resistance of the transparent electrode is 14kW.
- Each driving current was measured according to the pattern of each anode connection pattern.
- the etching area resistance value is increased up to 5.9 k ⁇ , and the driving current is found to be deviation of up to 13.76 mA. That is, in the second comparative example, the light output from the light emitting devices 20.20 'and 20' 'differs according to the length and length of the second comparative example, so that the light output of the entire transparent electronic display board is not uniform and thus it is difficult to realize a detailed video. I could conclude.
- the second embodiment of the present invention of FIG. 8 was tested under the same experimental conditions, and the driving current as shown in Table 4 below was measured.
- the anode connection pattern length and the rated voltage of the second comparative example are applied to the light emitting device and the transparent electrode having the same specifications, and only the anode connection pattern widths of the first to third groups 210 to 230 are used. Increased sequentially.
- the first to third anode connection patterns 211 to 213 of the first group 210 have a width of 0.5 mm, and the anode connection patterns 221 to 223 of the second group 220 have 2.5 mm and a third width.
- the anode connection patterns 231 to 233 of the group 230 were set to have a width of 4 mm, and the lengths L1, L2, and L3 were the same as those of the second comparative example, and the sheet resistance of the transparent electrode was 14 kW and rated voltage. Is 12V.
- the first driving current which is a theoretical current value confirmed through the specification of the product, was calculated through the above Equations 1 and 2, and the second driving current is the actual measured data.
- the widths of the anode connection patterns 211 to 233 of the first to third groups 210 to 230 are calculated by applying Equations 1 and 2 above.
- the first driving current value and the second driving current value have a maximum deviation of 2.53 mA, which is much smaller than 13.76 mA of the second comparative example. That is, according to the present invention, the light output of the entire light emitting devices 20, 20 ′ and 20 ′′ is small, regardless of the length of the anode connection patterns 211 to 233, so that the entire transparent display board may output uniform light. It can be confirmed.
- the present invention can correct the light output of a plurality of light emitting devices installed in the transparent display board to provide a clearer video quality by using a transparent display board to provide information for advertising, indoor and outdoor interior and wired and wireless communication devices It can be used as a terminal.
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Abstract
Description
| 연결패턴No | 제1에칭 면적 저항(이론값, ㏀ ) | 제1구동전류(mA) | 제2에칭 면적 저항(측정값, ㏀) | 제2구동전류(mA) |
| 1 | 0.76 | 15.79 | 0.71 | 13.31 |
| 2 | 3.57 | 3.36 | 3.77 | 2.77 |
| 3 | 6.39 | 1.88 | 6.85 | 1.56 |
| 연결패턴No | 제1에칭면적저항(이론값, ㏀ ) | 제1구동전류(mA) | 제2에칭면적저항(측정값, ㏀ ) | 제2구동전류(mA) |
| 1 | 1.42 | 8.45 | 1.28 | 6.80 |
| 2 | 1.44 | 8.33 | 1.28 | 6.83 |
| 3 | 1.64 | 7.32 | 1.46 | 6.00 |
| 연결패턴의 패턴NO | 제1에칭면적저항(이론값, ㏀ ) | 제1구동전류(mA) | 제2에칭면적저항(측정값, ㏀) | 제2구동전류(mA) |
| 1 | 0.77 | 15.58 | 0.72 | 13.43 |
| 2 | 0.78 | 15.38 | 0.74 | 12.03 |
| 3 | 0.83 | 14.36 | 0.80 | 11.46 |
| 4 | 3.66 | 3.28 | 3.83 | 2.73 |
| 5 | 3.66 | 3.28 | 3.86 | 2.51 |
| 6 | 3.71 | 3.23 | 3.92 | 2.43 |
| 7 | 6.54 | 1.83 | 7.02 | 1.48 |
| 8 | 6.55 | 1.83 | 7.01 | 1.36 |
| 9 | 6.60 | 1.82 | 7.06 | 1.37 |
| 패턴No | 제1에칭면적저항(이론값, ㏀ ) | 제1구동전류(mA) | 제2에칭면적저항(측정값, ㏀) | 제2구동전류(mA) |
| 1 | 1.39 | 8.63 | 1.22 | 6.92 |
| 2 | 1.44 | 8.33 | 1.31 | 5.86 |
| 3 | 1.52 | 7.89 | 1.37 | 5.52 |
| 4 | 1.56 | 7.70 | 1.36 | 6.41 |
| 5 | 1.55 | 7.74 | 1.37 | 5.76 |
| 6 | 1.61 | 7.45 | 1.42 | 5.49 |
| 7 | 1.87 | 6.42 | 1.76 | 5.16 |
| 8 | 1.90 | 6.31 | 1.69 | 4.56 |
| 9 | 1.98 | 6.06 | 1.58 | 4.49 |
Claims (6)
- 투명레진에 의하여 상호 이격되도록 접착되는 한 쌍의 투명판중 적어도 일면에 고정되는 하나 이상의 발광소자;상기 투명판에서 전도성 물질이 도포되어 상기 하나 이상의 발광소자에 전원을 통전시키는 투명전극; 및상기 투명전극에서 에칭되어 상기 발광소자에 전기적신호를 전달하도록 상기 발광소자의 각 전극에 서로 다른 길이로 연결되는 연결패턴;을 포함하고,상기 연결패턴은 상기 발광소자에 연결되는 길이가 길어질수록 폭이 증가 되는 것을 특징으로 하는 균일한 광의 출력이 가능한 투명전광판.
- 제1항에 있어서, 상기 연결패턴의 폭은(수학식1)L(mm)/W(mm) ×투명전극의 면저항(Ω)=에칭된 면적의 저항(Ω)(수학식2)정격전압(V)/에칭된 면적의 저항(㏀) = I(mA)L은 연결패턴의 길이, W는 연결패턴의 폭, 투명전극의 면저항은 투명전극 자체 면저항값이며, 정격전압은 투명전광판에 인가되는 전압이며, I는 연결패턴에서 발광소자에 인가되는 전류값(이하에서는 발광소자의 구동전류라 칭함)이며, 에칭된 면적의 저항은 투명전극에서 에칭되어 패턴형성된 연결패턴의 단위 면적당 저항값으로서,상기 수학식1과 2에 의하여 산출되는 것을 특징으로 하는 균일한 광의 출력이 가능한 투명전광판.
- 제1항에 있어서, 상기 발광소자는상기 연결패턴이 연결되는 하나 이상의 애노드전극과 하나의 캐소드전극을 포함하고,상기 연결패턴은 상기 투명전극에서 에칭되어 상기 애노드전극에 연결되는 하나 이상의 애노드연결패턴; 및상기 다 수개의 발광소자에 각각 형성되는 캐소드 전극에 공통으로 연결되는 단일의 캐소드연결패턴을 포함한 것을 특징으로 하는 균일한 광의 출력이 가능한 투명전광판.
- 제3항에 있어서, 상기 투명전광판은상기 투명판의 상하좌우측 끝단중 적어도 하나에서 상기 캐소드연결패턴과 상기 애노드연결패턴이 순차적으로 연장되어 상기 투명전도성테이프에 연결되는 연결단이 정렬되고,상기 연결단에서 최상측에서 상기 캐소드연결패턴의 연결단이 형성되고,상기 연결단에서 상기 캐소드연결패턴의 연결단의 하측으로 상기 하나 이상의 애노드연결패턴의 연결단이 순차적으로 연장되는 균일한 광의 출력이 가능한 투명전광판.
- 제3항에 있어서, 상기 애노드연결패턴은상기 발광소자에서 하나 이상의 애노드전극에 각각 연결되되, 적어도 하나 이상이 상기 캐소드연결패턴을 사이에 두고 이격되어 상기 애노드전극에 연결되는 것을 특징으로 하는 균일한 광의 출력이 가능한 투명전광판.
- 제3항에 있어서, 상기 발광소자는 하나 이상이 수평 또는 수직방향으로 정렬되고,상기 애노드연결패턴은 상기 발광소자의 애노드전극 숫자와 동일한 갯수가 상기 발광소자별로 각각 연장되는 균일한 광의 출력이 가능한 투명전광판.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SG11201502674QA SG11201502674QA (en) | 2012-10-18 | 2013-07-19 | Transparent electronic display board capable of uniform optical output |
| BR112015008377A BR112015008377A2 (pt) | 2012-10-18 | 2013-07-19 | placa de visualização eletrônica transparente capaz de produzir saída óptica uniforme |
| RU2015112695A RU2616561C2 (ru) | 2012-10-18 | 2013-07-19 | Прозрачное электронное дисплейное табло, способное производить равномерный оптический выход |
| CN201380002335.0A CN104025172B (zh) | 2012-10-18 | 2013-07-19 | 可输出均匀光的透明显示屏 |
| MX2015004332A MX339857B (es) | 2012-10-18 | 2013-07-19 | Tablero exhibidor electronico transparente, capaz de proveer salida optica uniforme. |
| US14/436,889 US9805629B2 (en) | 2012-10-18 | 2013-07-19 | Transparent electronic display board capable of uniform optical output |
| EP13847210.5A EP2911140A4 (en) | 2012-10-18 | 2013-07-19 | TRANSPARENT ELECTRONIC DISPLAY PANEL WITH UNIFORM OPTICAL OUTPUT |
| JP2015536669A JP6158934B2 (ja) | 2012-10-18 | 2013-07-19 | 均一な光出力が可能な透明電光板 |
| HK14109771.0A HK1196459B (en) | 2012-10-18 | 2013-07-19 | Transparent electronic display board capable of uniform optical output |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120116080A KR101442705B1 (ko) | 2012-10-18 | 2012-10-18 | 균일한 광출력이 가능한 투명전광판 |
| KR10-2012-0116080 | 2012-10-18 |
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| WO2014061902A1 true WO2014061902A1 (ko) | 2014-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/KR2013/006477 Ceased WO2014061902A1 (ko) | 2012-10-18 | 2013-07-19 | 균일한 광출력이 가능한 투명전광판 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US9805629B2 (ko) |
| EP (1) | EP2911140A4 (ko) |
| JP (1) | JP6158934B2 (ko) |
| KR (1) | KR101442705B1 (ko) |
| CN (1) | CN104025172B (ko) |
| BR (1) | BR112015008377A2 (ko) |
| MX (1) | MX339857B (ko) |
| RU (1) | RU2616561C2 (ko) |
| SG (1) | SG11201502674QA (ko) |
| WO (1) | WO2014061902A1 (ko) |
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| KR101683771B1 (ko) * | 2016-03-22 | 2016-12-21 | 지스마트 주식회사 | 발광 면적의 확장이 가능한 투명전광판 |
| CN105927938B (zh) * | 2016-06-17 | 2023-05-02 | 欧普照明股份有限公司 | 一种照明装置 |
| JP6872769B2 (ja) * | 2016-11-29 | 2021-05-19 | 株式会社Spacewa | Ledディスプレイ装置 |
| CN106851915A (zh) * | 2017-03-03 | 2017-06-13 | 丁文兰 | 一种智能显示建筑玻璃及其导电线路 |
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| KR102771185B1 (ko) * | 2019-07-12 | 2025-02-21 | 삼성디스플레이 주식회사 | 백라이트 유닛과 그를 포함한 표시 장치 |
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Also Published As
| Publication number | Publication date |
|---|---|
| RU2616561C2 (ru) | 2017-04-17 |
| CN104025172A (zh) | 2014-09-03 |
| MX2015004332A (es) | 2015-06-10 |
| JP2015534126A (ja) | 2015-11-26 |
| KR101442705B1 (ko) | 2014-09-19 |
| SG11201502674QA (en) | 2015-05-28 |
| EP2911140A4 (en) | 2016-04-27 |
| US20150287348A1 (en) | 2015-10-08 |
| JP6158934B2 (ja) | 2017-07-05 |
| BR112015008377A2 (pt) | 2017-07-04 |
| US9805629B2 (en) | 2017-10-31 |
| RU2015112695A (ru) | 2016-12-10 |
| EP2911140A1 (en) | 2015-08-26 |
| KR20140049812A (ko) | 2014-04-28 |
| MX339857B (es) | 2016-06-15 |
| CN104025172B (zh) | 2016-04-06 |
| HK1196459A1 (zh) | 2014-12-12 |
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