TWI570358B - A lighting device that emits light in a diffractive manner - Google Patents
A lighting device that emits light in a diffractive manner Download PDFInfo
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- TWI570358B TWI570358B TW103105142A TW103105142A TWI570358B TW I570358 B TWI570358 B TW I570358B TW 103105142 A TW103105142 A TW 103105142A TW 103105142 A TW103105142 A TW 103105142A TW I570358 B TWI570358 B TW I570358B
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- light
- lamp housing
- light sources
- incident surface
- illuminating device
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- 230000003287 optical effect Effects 0.000 claims description 18
- 238000005286 illumination Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 claims 1
- WGWACCCAJWZIML-UHFFFAOYSA-N benzene;buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N.C1=CC=CC=C1 WGWACCCAJWZIML-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 4
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 239000012994 photoredox catalyst Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/155—Surface emitters, e.g. organic light emitting diodes [OLED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Description
本發明係有關於一種照明裝置，特別是關於一種具有繞射光學作用之照明裝置。 The present invention relates to a lighting device, and more particularly to a lighting device having a diffractive optical effect.
在目前的照明裝置中，為了使出光均勻或產生特定圖案，常使用霧面燈殼或一體成形之圖案化燈殼。霧面燈殼一般係用在一般的家用照明或辦公室照明，而一體成形之圖案化燈殼則常見於車燈中以提供特定的條紋或幾何圖案。 In current lighting devices, in order to make the light uniform or to produce a specific pattern, a matte lamp housing or an integrally formed patterned lamp housing is often used. Matte lamp housings are typically used in general household or office lighting, while integrally formed patterned lamp housings are commonly found in automotive lights to provide specific stripes or geometric patterns.
然而，霧面燈殼的出光效率較差，而目前一體成形之圖案化燈殼則無法提供一均勻的視覺圖案一觀察者很容易透過一體成形之圖案化燈殼看到多個彼此分離之燈源。 However, the light-emitting efficiency of the matte lamp housing is poor, and the currently formed patterned lamp housing cannot provide a uniform visual pattern. The observer can easily see a plurality of separate light sources through the integrally formed patterned lamp housing. .
為解決前述之問題，吾人亟需一種新穎的照明裝置。 In order to solve the aforementioned problems, we need a novel lighting device.
本發明之一目的在於揭露一種照明裝置，其可藉由具繞射作用之燈殼提供一線條均勻的顯示圖案。 It is an object of the present invention to disclose an illumination device that provides a uniform display pattern by means of a diffractive lamp envelope.
本發明之另一目的在於揭露一種照明裝置，其可藉由具繞射作用之燈殼提供一具有立體感的顯示圖案。 Another object of the present invention is to disclose a lighting device that can provide a three-dimensional display pattern by a light-emitting lamp housing.
本發明之又一目的在於揭露一種照明裝置，其可藉由具繞 射作用之燈殼節省燈源之數目。 Another object of the present invention is to disclose a lighting device which can be wound by means of The light-emitting lamp housing saves the number of light sources.
為達到上述之目的，一種以繞射方式出光之照明裝置乃被提出，其具有：一光源模組，具有複數個第一光源；以及一燈殼，具有一入光面及一出光面，且在所述入光面或所述出光面具有一繞射作用區，其中，所述複數個第一光源提供入射光線至所述入光面，以及藉由該燈殼所述出光面發出經繞射的光線。 In order to achieve the above object, an illumination device that emits light in a diffractive manner is provided, which has: a light source module having a plurality of first light sources; and a lamp housing having a light incident surface and a light exit surface, and Having a diffraction action region on the light incident surface or the light exiting mask, wherein the plurality of first light sources provide incident light to the light incident surface, and the light exit surface is wound by the light shell Rays of light.
在一實施例中，所述複數個第一光源係由LED(light emitting diode；發光二極體)或OLED(organic light emitting diode；有機發光二極體)或PLED(polymer light emitting diode；高分子有機發光二極體)構成。 In one embodiment, the plurality of first light sources are LED (light emitting diode) or OLED (organic light emitting diode) or PLED (polymer light emitting diode; Organic light-emitting diode).
在一實施例中，所述複數個第一光源具有單一封裝體或複數個封裝體。 In an embodiment, the plurality of first light sources have a single package or a plurality of packages.
在一實施例中，所述複數個第一光源具有相同的色光或不同的色光。 In an embodiment, the plurality of first light sources have the same color light or different color lights.
在一實施例中，所述複數個第一光源具有一光學轉換件以及至少一第二光源，所述至少一第二光源係位於該光學轉換件之至少一側邊。 In one embodiment, the plurality of first light sources have an optical conversion member and at least one second light source, and the at least one second light source is located on at least one side of the optical conversion member.
在一實施例中，所述複數個第一光源係位於同一平面或不同平面。 In an embodiment, the plurality of first light sources are in the same plane or different planes.
在一實施例中，所述複數個第一光源具有多個光軸方向。 In an embodiment, the plurality of first light sources have a plurality of optical axis directions.
在一實施例中，該燈殼係透明或半透明。 In an embodiment, the lamp envelope is transparent or translucent.
在一實施例中，該燈殼之所述繞射作用區係由玻璃、PC(polycarbonate；聚碳酸酯)、PMMA(polymethyl methacrylate；聚酸甲酯)、COP (cyclo olefin polymers；環烯烴聚合物)、ABS(acrylonitrile butadiene styrene；丙烯腈-丁二烯-苯乙烯)、以及前述任意組合所組成之群組所選擇的一種材料製成。 In one embodiment, the diffraction region of the lamp envelope is made of glass, PC (polycarbonate), PMMA (polymethyl methacrylate), COP (cycloolefin polymer; cycloolefin polymer), ABS (acrylonitrile butadiene styrene; acrylonitrile butadiene styrene), and a combination of any of the foregoing combinations of materials selected.
在一實施例中，該燈殼之所述繞射作用區係一體成形於該燈殼之所述入光面或所述出光面，或以至少一繞射光學元件貼合於該燈殼之所述入光面或所述出光面而形成。 In one embodiment, the diffraction action region of the lamp housing is integrally formed on the light incident surface or the light exit surface of the lamp housing, or is attached to the lamp housing by at least one diffractive optical element. The light incident surface or the light exit surface is formed.
為使 貴審查委員能進一步瞭解本發明之結構、特徵及其目的，茲附以圖式及較佳具體實施例之詳細說明如後。 The detailed description of the drawings and the preferred embodiments are set forth in the accompanying drawings.
10‧‧‧光源模組 10‧‧‧Light source module
11‧‧‧燈殼 11‧‧‧Light shell
10a‧‧‧第一光源 10a‧‧‧first light source
11a‧‧‧入光面 11a‧‧‧Into the glossy surface
11b‧‧‧出光面 11b‧‧‧Glossy
11c‧‧‧繞射作用區 11c‧‧‧Diffraction zone
13‧‧‧光學轉換件 13‧‧‧Optical converter
13a‧‧‧出光區 13a‧‧‧Lighting area
14‧‧‧第二光源 14‧‧‧Second light source
15‧‧‧反射件 15‧‧‧Reflecting parts
圖1為本發明照明裝置其一實施例之爆炸示意圖。 1 is a schematic exploded view of an embodiment of a lighting device of the present invention.
圖2為圖1之照明裝置之組合示意圖。 2 is a schematic view showing the combination of the lighting device of FIG. 1.
圖3為圖2之照明裝置於發光時所產生之條紋圖案示意圖。 3 is a schematic view showing a stripe pattern generated by the illumination device of FIG. 2 when illuminated.
圖4為圖1之光源模組之複數個第一光源不位於同一平面之示意圖。 4 is a schematic diagram of a plurality of first light sources of the light source module of FIG. 1 not in the same plane.
圖5為圖1之光源模組之複數個第一光源具有二個光軸方向之示意圖。 FIG. 5 is a schematic diagram of a plurality of first light sources of the light source module of FIG. 1 having two optical axis directions.
圖6為本發明照明裝置其另一實施例之爆炸示意圖。 Figure 6 is a schematic exploded view of another embodiment of the lighting device of the present invention.
圖7為本發明之照明裝置設置有複數個繞射光學元件之一示意圖。 Figure 7 is a schematic view of a lighting device of the present invention provided with a plurality of diffractive optical elements.
請參照圖1，其為本發明照明裝置其一實施例之爆炸示意圖。如圖1所示，該照明裝置具有一光源模組10以及一燈殼11。 Please refer to FIG. 1, which is a schematic exploded view of an embodiment of a lighting device of the present invention. As shown in FIG. 1 , the lighting device has a light source module 10 and a lamp housing 11 .
光源模組10具有複數個第一光源10a，且第一光源10a可由LED或OLED或PLED構成。所述複數個第一光源10a可具有單一封裝體或複 數個封裝體，且所述複數個第一光源10a可具有相同的色光或不同的色光。 The light source module 10 has a plurality of first light sources 10a, and the first light source 10a may be composed of an LED or an OLED or a PLED. The plurality of first light sources 10a may have a single package or a complex A plurality of packages, and the plurality of first light sources 10a may have the same color light or different color lights.
燈殼11具有一入光面11a及一出光面11b，且在所述入光面11a或所述出光面11b具有一繞射作用區11c，其中，所述複數個第一光源10a提供入射光線至所述入光面11a，且藉由該燈殼11所述出光面11b發出經繞射的光線。燈殼11可為一曲面燈殼或一平面燈殼，係透明或半透明，且其繞射作用區11c可由玻璃、PC、PMMA、COP、ABS、以及前述任意組合所組成之群組所選擇的一種材料形成。繞射作用區11c係藉由其表面之細紋路(像髮絲般細)使觀看者在距出光面11b一距離處觀看到一線條均勻的條紋化圖案、幾何圖案、數字、或文字符號。 The lamp housing 11 has a light incident surface 11a and a light exit surface 11b, and has a diffraction action area 11c on the light incident surface 11a or the light exit surface 11b, wherein the plurality of first light sources 10a provide incident light. To the light incident surface 11a, the diffracted light is emitted by the light exit surface 11b of the lamp housing 11. The lamp housing 11 can be a curved lamp housing or a flat lamp housing, which is transparent or translucent, and the diffraction action area 11c can be selected by a group consisting of glass, PC, PMMA, COP, ABS, and any combination of the foregoing. A material is formed. The diffraction action area 11c allows the viewer to see a line of uniform striped pattern, geometric pattern, number, or text symbol at a distance from the light exit surface 11b by the fine lines on the surface (like hairline).
於發光時，由於繞射作用區11c的繞射作用，觀看者在偏離正面一角度處將看到較正面所見圖案稍微彎曲的圖案。依此，本發明之照明裝置提供了立體的圖案顯示效果。 At the time of illuminating, due to the diffraction effect of the diffraction action area 11c, the viewer will see a slightly curved pattern of the pattern seen from the front side at an angle deviating from the front side. Accordingly, the illumination device of the present invention provides a stereoscopic pattern display effect.
請參照圖2，其為圖1之照明裝置之組合示意圖。請參照圖3，其為圖2之照明裝置於發光時所產生之條紋圖案示意圖。如圖3所示，該照明裝置所產生之條紋圖案係一均勻的條紋圖案，且帶有立體感。 Please refer to FIG. 2 , which is a schematic diagram of the combination of the lighting device of FIG. 1 . Please refer to FIG. 3 , which is a schematic diagram of a stripe pattern generated by the illumination device of FIG. 2 when illuminated. As shown in FIG. 3, the stripe pattern produced by the illumination device is a uniform stripe pattern with a three-dimensional effect.
另外，光源模組10之複數個第一光源10a可位於同一平面或不位於同一平面。請參照圖4，其為光源模組10之複數個第一光源10a不位於同一平面之示意圖。當複數個第一光源10a不位於同一平面時，本發明之照明裝置可更增強其顯示圖案的立體感。 In addition, the plurality of first light sources 10a of the light source module 10 may be located in the same plane or not in the same plane. Please refer to FIG. 4 , which is a schematic diagram of a plurality of first light sources 10 a of the light source module 10 not in the same plane. When the plurality of first light sources 10a are not in the same plane, the illumination device of the present invention can further enhance the stereoscopic effect of the display pattern thereof.
另外，光源模組10之複數個第一光源10a亦可具有多個光軸方向。請參照圖5，其為光源模組10之複數個第一光源10a具有二個光軸方向之示意圖。依此，本發明之照明裝置即可提供二種不同的顯示圖案。 In addition, the plurality of first light sources 10a of the light source module 10 may have a plurality of optical axis directions. Please refer to FIG. 5 , which is a schematic diagram of a plurality of first light sources 10 a of the light source module 10 having two optical axis directions. Accordingly, the illumination device of the present invention can provide two different display patterns.
另外，光源模組10之複數個第一光源10a亦可藉由一光學轉換件間接產生。由請參照圖6，其為本發明照明裝置其另一實施例之爆炸示意圖。如圖6所示，該照明裝置之光源模組10具有一光學轉換件13、複數個第二光源14、以及一反射件15。 In addition, the plurality of first light sources 10a of the light source module 10 can also be indirectly generated by an optical conversion member. Please refer to FIG. 6, which is a schematic exploded view of another embodiment of the lighting device of the present invention. As shown in FIG. 6, the light source module 10 of the illumination device has an optical conversion member 13, a plurality of second light sources 14, and a reflection member 15.
光學轉換件13可由一導光板構成，其具有二側邊、一出光面、以及一背面。所述二側邊分別設置有二個第二光源14(亦可在單一側邊設置至少一第二光源14)，且所述出光面具有複數個出光區13a以提供所述的複數個第一光源10a。 The optical conversion member 13 can be composed of a light guide plate having two sides, a light exiting surface, and a back surface. The two sides are respectively provided with two second light sources 14 (at least one second light source 14 may be disposed on a single side), and the light exiting surface has a plurality of light exiting regions 13a to provide the plurality of first portions. Light source 10a.
複數個第二光源14可由LED或OLED或PLED構成。 The plurality of second light sources 14 may be comprised of LEDs or OLEDs or PLEDs.
反射件15可由例如但不限於金屬構成，用以提供光線反射功能。 The reflector 15 can be constructed of, for example, but not limited to, a metal to provide a light reflecting function.
另外，本發明之照明裝置亦可在燈殼設置複數個繞射作用區以提供較為複雜的顯示圖案。請參照圖7，其為本發明之照明裝置設置有複數個繞射作用區之一示意圖。如圖7所示，標號為A之繞射作用區係用以產生垂直之條紋顯示圖案，而標號為B之繞射作用區則係用以產生水平之條紋顯示圖案。依此方式組合，本發明之照明裝置即可在發光時讓觀看者看到一文字或數碼符號。 In addition, the illumination device of the present invention can also provide a plurality of diffraction zones in the lamp housing to provide a relatively complicated display pattern. Please refer to FIG. 7 , which is a schematic diagram of a lighting device provided with a plurality of diffraction active regions. As shown in Fig. 7, the diffraction action zone labeled A is used to create a vertical stripe display pattern, and the diffraction action zone labeled B is used to create a horizontal stripe display pattern. In combination in this manner, the illumination device of the present invention allows a viewer to see a text or digital symbol when illuminated.
由以上的說明可知，本發明因其新穎之設計而具有以下之優點： As can be seen from the above description, the present invention has the following advantages due to its novel design:
1.本發明之照明裝置可藉由具繞射作用之燈殼提供一線條均勻的顯示圖案。 1. The illumination device of the present invention can provide a uniform display pattern by means of a diffractive lamp envelope.
2.本發明之照明裝置可藉由具繞射作用之燈殼提供一具有 立體感的顯示圖案。 2. The illumination device of the present invention can be provided by a lamp housing having a diffraction effect A three-dimensional display pattern.
3.本發明之照明裝置可藉由具繞射作用之燈殼節省燈源之數目。 3. The illumination device of the present invention can save the number of light sources by means of a lamp housing with a diffractive effect.
本案所揭示者，乃較佳實施例，舉凡局部之變更或修飾而源於本案之技術思想而為熟習該項技藝之人所易於推知者，俱不脫本案之專利權範疇。 The disclosure of the present invention is a preferred embodiment. Any change or modification of the present invention originating from the technical idea of the present invention and being easily inferred by those skilled in the art will not deviate from the scope of patent rights of the present invention.
綜上所陳，本案無論就目的、手段與功效，在在顯示其迥異於習知之技術特徵，且其首先發明合於實用，亦在在符合發明之專利要件，懇請 貴審查委員明察，並祈早日賜予專利，俾嘉惠社會，實感德便。 In summary, this case, regardless of its purpose, means and efficacy, is showing its technical characteristics that are different from the conventional ones, and its first invention is practical and practical, and it is also in compliance with the patent requirements of the invention. I will be granted a patent at an early date.
10‧‧‧光源模組 10‧‧‧Light source module
11‧‧‧燈殼 11‧‧‧Light shell
10a‧‧‧第一光源 10a‧‧‧first light source
11a‧‧‧入光面 11a‧‧‧Into the glossy surface
11b‧‧‧出光面 11b‧‧‧Glossy
11c‧‧‧繞射作用區 11c‧‧‧Diffraction zone
Claims (10)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103105142A TWI570358B (en) | 2014-02-17 | 2014-02-17 | A lighting device that emits light in a diffractive manner |
| CN201420731062.5U CN204268149U (en) | 2014-02-17 | 2014-11-26 | Lighting device emitting light in diffraction mode |
| CN201410695655.5A CN104848054A (en) | 2014-02-17 | 2014-11-26 | Lighting device emitting light in diffraction mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103105142A TWI570358B (en) | 2014-02-17 | 2014-02-17 | A lighting device that emits light in a diffractive manner |
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| Publication Number | Publication Date |
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| TW201533387A TW201533387A (en) | 2015-09-01 |
| TWI570358B true TWI570358B (en) | 2017-02-11 |
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| TW103105142A TWI570358B (en) | 2014-02-17 | 2014-02-17 | A lighting device that emits light in a diffractive manner |
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| TW (1) | TWI570358B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI570358B (en) * | 2014-02-17 | 2017-02-11 | A lighting device that emits light in a diffractive manner | |
| DE102021116099A1 (en) * | 2020-11-02 | 2022-05-05 | Olsa S.P.A. | AUTOMOTIVE OPTICAL DEVICE, AUTOMOTIVE LAMP AND AMBIENT LIGHT |
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| CN201526899U (en) * | 2009-10-19 | 2010-07-14 | 秀山交通器材股份有限公司 | Vehicle aperture generator |
| JP2012069461A (en) * | 2010-09-27 | 2012-04-05 | Harison Toshiba Lighting Corp | Backlight device and liquid crystal display device |
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| TWI570358B (en) * | 2014-02-17 | 2017-02-11 | A lighting device that emits light in a diffractive manner |
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- 2014-02-17 TW TW103105142A patent/TWI570358B/en not_active IP Right Cessation
- 2014-11-26 CN CN201410695655.5A patent/CN104848054A/en active Pending
- 2014-11-26 CN CN201420731062.5U patent/CN204268149U/en not_active Expired - Fee Related
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|---|---|---|---|---|
| TW409282B (en) * | 1995-12-14 | 2000-10-21 | Mitsubishi Electric Corp | Image difference evaluation photomask pattern and the evaluation method of quality of image difference |
| TW200422666A (en) * | 2003-03-07 | 2004-11-01 | Nitto Denko Corp | High-brightness polarization plate, liquid crystal panel using the polarization plate and picture display apparatus |
| TW201120377A (en) * | 2009-07-22 | 2011-06-16 | Teijin Ltd | Led illuminator |
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| TW201309093A (en) * | 2011-05-04 | 2013-02-16 | Universal Display Corp | Illumination source using LEDs and OLEDs |
| TWM415250U (en) * | 2011-06-08 | 2011-11-01 | Wellypower Optronics Corp | Multi-angle lighting structure and bubble lamp structure thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104848054A (en) | 2015-08-19 |
| TW201533387A (en) | 2015-09-01 |
| CN204268149U (en) | 2015-04-15 |
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