WO2005068899A1 - 照明用反射板および情報表示用バックライト装置 - Google Patents
照明用反射板および情報表示用バックライト装置 Download PDFInfo
- Publication number
- WO2005068899A1 WO2005068899A1 PCT/JP2005/000217 JP2005000217W WO2005068899A1 WO 2005068899 A1 WO2005068899 A1 WO 2005068899A1 JP 2005000217 W JP2005000217 W JP 2005000217W WO 2005068899 A1 WO2005068899 A1 WO 2005068899A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reflector
- reflective material
- lighting
- reflective
- shape
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133604—Direct backlight with lamps
Definitions
- the present invention relates to an illumination reflector that reflects and distributes light from a light source.
- a reflection material of a reflector for lighting As a reflection material of a reflector for lighting, a mirror-finished metal, a polymer film using an interface generated by voids or the like and a laminated structure of a transparent dielectric for reflection are known.
- a high molecular weight film is a lightweight, highly reflective material that is less affected by deterioration due to temperature and humidity, and diffusion reflection is used for polymer films that use the interface created by voids. Because of this, it has excellent characteristics such as easy supply of light uniformly, so it is actively used as a reflective material for lighting that needs to shine evenly over a large area such as a backlight device for information display. Let's do it.
- Patent Document 1 discloses a material obtained by attaching a polymer film to an aluminum plate and bending it as an illumination reflector. Structural materials that are strong, while being strong, are strong and capable of holding and holding the shape. If the product is subjected to external forces during the machining process or during transportation, the product shape tends to remain deformed and the optical performance at the time of design is reduced. There is a problem that it is difficult to exert the effect, and it is also difficult to install the device on a frame. In addition, there was a problem that it was difficult to realize a complicated shape, such as a heavy weight, a deep bend, a deep bend, and a combination of various shapes.
- Patent Document 2 discloses a white polymer film having a thickness of about 1 mm which is bent.
- the bent part is bent or expanded deeply during the processing process or installation, the material is easily broken, and stress distortion tends to remain in the film material, making it difficult to maintain a highly accurate shape. There was a problem.
- Patent Document 1 JP-A-11-198284 (paragraph [0022]-[0045])
- Patent Document 2 JP-A-2003-22701 (paragraphs [0012] and [0018])
- An object of the present invention is to provide an illumination reflector having both shape retention and flexibility and light weight.
- the present invention has the following configurations.
- a reflective material 1 having at least one surface side, a polymer film having an average reflectance of 85% or more with respect to a wavelength of 400 to 700 nm and having a ridge-like unevenness,
- a reflective material for lighting (a first material) comprising a flexible reinforcing material, the reinforcing material connecting the bottoms of the concave portions from the back side of the one surface side of the reflective material 1 to reinforce the uneven shape.
- a first material comprising a flexible reinforcing material, the reinforcing material connecting the bottoms of the concave portions from the back side of the one surface side of the reflective material 1 to reinforce the uneven shape.
- a reflective material 2 having a polymer film having an average reflectance of 85% or more with respect to a wavelength of 400 to 700 nm on at least one surface side and having no ridge-shaped unevenness.
- the reflective material 1, the reinforcing material, and the connecting material are made of a polyester film.
- At least one surface side of a reflective material composed of a polymer film having an average reflectivity of 85% or more for wavelengths of 400 to 700 nm forms a side portion that is continuous with the bottom of the reflector.
- a reflector for illumination forms a side continuous with the bottom of the reflector, and has a groove on the back side of the one surface at the boundary between the bottom and the side (the reflector for illumination of the second invention).
- a lighting reflector having both shape retention and flexibility and light weight.
- an illumination reflector that faithfully reproduces an optical design and has excellent handling at the time of installation and transport, such as positioning during mounting work on a frame or the like.
- FIG. 1 is a conceptual diagram of an illumination reflector.
- FIG. 2 is a conceptual view of a back surface of an illumination reflector made of a tape-like reinforcing material.
- FIG. 3 is a conceptual diagram of a reflective material 1.
- FIG. 4 is a conceptual diagram of a reflective material having ridge-shaped protrusions by bending.
- FIG. 5 is a conceptual diagram of a reflective material having ridge-shaped protrusions obtained by bonding bar-shaped members.
- FIG. 6 is a conceptual cross-sectional view of a lighting reflector.
- FIG. 7 is a conceptual cross-sectional view of a vertex at the top.
- FIG. 8 is an example 1 of a conceptual cross-sectional view of a groove portion when a bent portion of a reflective material is developed.
- FIG. 9 is an example 2 of a conceptual cross-sectional view of a groove portion when a bent portion of the reflective material is developed.
- FIG. 10 is an example 3 of a conceptual cross-sectional view of the groove when the reflective material is bent.
- FIG. 11 is a conceptual diagram of an illumination reflector including a plurality of reflective materials 1.
- FIG. 12 is a conceptual view of the back surface of a lighting reflector integrated with a tape-shaped connecting material.
- FIG. 13 is a conceptual diagram of an example of a lighting reflector having a reflecting material 1 and a planar reflecting material.
- FIG. 14 is a conceptual diagram of an example of an illumination reflector having a cross-girder shape.
- FIG. 15 is a conceptual diagram of an example of a reflection material 2.
- FIG. 16 is a conceptual diagram of an example of a cutout formed in a reflective material 1 to form a cross-girder shape.
- Garden 17 is a conceptual diagram of an example in which a difference in surface shape is not particularly treated.
- Garden 18 is a conceptual diagram 1 of an example in which a difference portion of a surface shape is closed.
- Garden 19 is a conceptual diagram 2 of an example in which a difference portion of a surface shape is closed.
- FIG. 1 is a conceptual diagram 1 of an example in which materials having different surface shapes are overlapped.
- Garden 21 is a conceptual diagram 2 of an example in which materials of different portions of the surface shape are overlapped.
- FIG. 22 is a conceptual diagram of an example in which a connecting material has a function of a seaming material.
- FIG. 23 is a conceptual diagram of an example of a cut shape of a reflective material.
- FIG. 23 is a conceptual diagram of a reflection material 1 obtained by adding ridge-shaped irregularities to the reflection material cut into the cut shape of FIG.
- FIG. 25 is a schematic view of Example 6.
- FIG. 26 is a conceptual diagram when the degree of freedom of installation in Example 6 is evaluated.
- FIG. 27 is a conceptual diagram of an installation stability evaluation sample having a hole in Example 6.
- FIG. 28 is a conceptual diagram of the installation stability evaluation stand viewed from the side.
- FIG. 30 is a development schematic diagram of the reflective material 1 of Example 8.
- FIG. 31 is a development schematic diagram of the reflective material 2 of Example 8.
- FIG. 32 is a development schematic diagram of the reflective material 1 of Example 9.
- FIG. 33 is a schematic sectional view of a reflective material 1 of Example 9.
- FIG. 34 is a schematic sectional view of a lighting reflector sample of Example 9.
- FIG. 35 is a conceptual diagram of backlight setting in backlight front luminance evaluation 2.
- FIG. 36 is a conceptual diagram of a luminance measurement range in backlight front luminance evaluation 2.
- Garden 37 is a conceptual cross-sectional view of a lighting reflector forming a side continuous with the bottom of the reflector.
- Garden 38 relates to opening and closing of the side of the lighting reflector forming a side continuous with the bottom of the reflector. It is a cross section conceptual diagram.
- FIG. 39 is a conceptual diagram of an example of an illumination reflector that forms a side portion that is continuous with the bottom of the reflector.
- Garden 40] is a conceptual back view of an example of an illumination reflector that forms a side continuous with the bottom of the reflector.
- the lighting reflector of the present invention has a reflecting material composed of a polymer film.
- a polymer membrane As the polymer membrane,
- a resin that is incompatible with the resin component and Z or organic or inorganic particles are mixed with the constituent resin component, melt-extruded, and then stretched in at least one direction. Void formed
- the material has apparent whiteness.
- the above-mentioned embodiment (2) is preferable for improving the reflectance and the luminance.
- the size of voids in each layer is controlled by, for example, differences in the particle size and type of the particles in (2) above and the resin component composition, and the size of voids in the surface layer is made smaller than that of the inner layer. Those obtained are also particularly preferred.
- thermoplastic resin constituting the polymer film a film is formed by melt extrusion.
- examples thereof include polyester, polyolefin, polyamide, polyurethane, and polyphenylene sulfide.
- polyester is preferred because it has good dimensional stability and mechanical properties and hardly absorbs in the visible light region.
- polyesters include polyethylene terephthalate (PET), polyethylene-1,6-naphthalenedicarboxylate (PEN), polypropylene terephthalate, polybutylene terephthalate, and poly_1,4-cyclohexylene dimethylene terephthalate. Raising power S can.
- PET polyethylene terephthalate
- PEN polyethylene-1,6-naphthalenedicarboxylate
- PEN polypropylene terephthalate
- polybutylene terephthalate polybutylene terephthalate
- poly_1,4-cyclohexylene dimethylene terephthalate Raising power S can.
- These polyesters are preferably used as homopolymers, but may be used as copolymers.
- examples of the copolymerization component include an aromatic dicarboxylic acid, an aliphatic dicarboxylic acid, an alicyclic dicarboxylic acid, and a C2-15 carbon-diol component, and more specifically.
- isophthalic acid adipic acid, sebacic acid, phthalic acid, isophthalic acid containing a sulfonate group, and ester-forming compounds thereof, diethylene glycol, triethylene glycol, neopentyl glycol, and poly (number average molecular weight 400 to 20,000) Alkylene glycol and the like can be mentioned.
- Various additives such as heat stabilizers, oxidation stabilizers, lubricants, organic and inorganic fine particles, light stabilizers, antistatic agents, and the like may be added to the reflective material within a range that does not impair the effects of the present invention.
- a nucleating agent, a coupling agent and the like may be added by kneading or coating.
- Light stabilizers include organic light stabilizers such as hindered amines, salicylic acids, benzophenones, benzotriazoles, cyanoacrylates, triazines, benzoates and anilic oxalates, and their light-stabilizing structures.
- organic light stabilizers such as hindered amines, salicylic acids, benzophenones, benzotriazoles, cyanoacrylates, triazines, benzoates and anilic oxalates, and their light-stabilizing structures.
- Inorganic light stabilizers such as copolymers containing sol-gel or sol-gel can be used. Specific examples of the light stabilizer preferably used are shown below. These may be used alone or in combination of two or more.
- Hindered amines bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate, dimethyl succinate ⁇ 1_ (2-hydroxyethyl) _4-hydroxy-2,2,6,6-tetramethylpyridine polycondensate .
- Salicylic acid p_t_butylphenyl salicylate, p-octylphenyl salicylate.
- Benzophenones 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-15-sulfobenzophenone, 2,2′—4,4′-tetrahydroxybenzophenone, 2 2,2'-Dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-1,4,4'-dimethoxybenzophenone, bis (2-methoxy-14-hydroxy_5_benzylphenylenole) methane.
- Benzotriazoles 2_ (2'-hydroxy_5'_methylpheninole) benzotriazole, 2- (2'-hydroxy_5, -t-butylphenyl) benzotriazole, 2- (2'-hydroxy-3,, 5 , —Di _t_butylphenyl) benzotriazole, 2_ (2'-hydroxy_3, _t-butynole-5'_methylpheninole) -1-5-cyclobenzobenzotriazole, 2- (2'-hydroxy_3,, 5 '-Di-t-butylpheninole) 1-5-chlorobenzototriazole, 2- (2,1-hydroxy_5' _t-otatylphenol) benzotriazole, 2- (2'-hydroxy-3 ', 5' —Di't-Ammylphenyl benzotriazole, 2, 2'-methylenebis [4_ (1,1,3,3-tetramethylbutyl) _6- (2H-benzotriazon
- Cyanoacrylates Ethyl-12-cyano-1,3,3-diphenyl acrylate.
- the reflection property of the reflection material is defined by an average reflectance of at least one surface of the reflection material at a wavelength of 400 to 700 nm of 85% or more.
- the average reflectance for a wavelength of 400 to 700 nm refers to an arithmetic average of the measured values of the spectral reflectance in the wavelength range of 400 to 700 ⁇ m at intervals of 10 nm according to JIS Z 8722.
- the average reflectance is preferably 87% or more, more preferably 90. / ⁇ or more, more preferably 95% or more.
- a reflecting material of 150 ° C for 30 minutes is used.
- Heat shrinkage ratio under exposure condition is 1.8. It is preferable to use a biaxially stretched polyester film having a ratio of not more than / 0 , more preferably not more than 1.5%, more preferably not more than 1.0%.
- a composite material can be used according to the application.
- Polyester film Polyolefin film, Polyamide finolem, Polyurethane film, Polyphenylene sulfide film, Aluminum foil, Iron foil, Copper foil.
- Combination method adhesion, adhesion, heat fusion.
- a light-shielding layer it is also a preferable embodiment to form a light-shielding layer, a heat transfer layer, a conductive layer, and an insulating layer on the back surface side of the material constituting the reflective material by printing or vapor deposition.
- the portion to be composited is not limited to the entire surface of the constituent material, but may be only a part, or a different composite form may be used for each portion.
- the surface shape of the reflecting material may be a flat shape, a ridge shape, a wavy shape, a saw-tooth shape, or a shark-skin shape in accordance with demands such as improvement of optical characteristics, easy installation and handling. It can be designed and used as appropriate, for example, in an uneven shape such as a cross-girder shape, a checkered pattern, a dimpling shape, or a combination thereof.
- the shape is the back side of the reflector for lighting. This is a preferred embodiment in order to achieve requirements such as easy installation and improved handling, while reducing the optical influence and physical restrictions on the illumination reflector surface.
- the optical effect on the surface of the reflection plate is small, so that the range in which the material, size, and shape of the members to be bonded can be selected is widened.
- the reflective material may have finer ridge-shaped protrusions that are not reinforced by a reinforcing material described later, in addition to the ridge-shaped unevenness of the reflective material 1 described below.
- the ridge-shaped projection is a preferable mode because it becomes difficult to bend the bending force S when handling a light and thin reflector.
- the shape, arrangement, and combination of the ridge-shaped projections can be selected according to the handleability of the reflector for illumination and the structure required for design. For example, in order to reduce the optical effects and physical restrictions due to the ridge-shaped projections, a configuration in which the ridge-shaped projections are arranged under a light source is a preferable embodiment.
- the width is within the range of 0.5-10 mm and the height is 0.5-10 mm, more preferably the width is 0.5-5 mm, the height is 0.5-5 mm, and the width is more preferably 1-3 mm and the height is 1 It is one 3mm.
- the means for forming the ridge-shaped projections can be selected from bending, hot pressing, lamination of crosspieces, etc., according to the required characteristics of the reflector for illumination and the manufacturing process.
- the illumination reflector of the first aspect of the present invention is a reflective material composed of a polymer film having a reflectance of at least one surface side of 85% or more, and having a ridge-like unevenness. Having. By providing the reflective material 1 having a ridge-like uneven shape, mixing of light between linear light sources such as a fluorescent lamp and a cold cathode tube is prevented, and the linear light source is efficiently used as a surface light source, thereby providing a clear light. Display can be enabled.
- the ridge-shaped unevenness of the reflective material 1 can be appropriately selected according to the intended use, such as the shape of a linear light source.
- a linear light source such as a fluorescent lamp or a cold cathode tube as an illumination reflector for use as a surface light source
- the distance D between the vertices of adjacent tops should be within the range of 0.5 to 500 mm. It is preferred that the height H from the bottom to the top of the top be in the range of 0.5-500mm.
- use cold cathode tubes with a diameter of 26 mm In this case, the D is more preferably in the range of 10 to 50 mm, and the H is more preferably in the range of 3 to 15 mm.
- the cross-sectional shape perpendicular to the straight line forming the ridge portion of the convex portion of the reflective material 1 must be
- the radius of curvature R is preferably 1 mm or less, more preferably 0.8 mm or less, and even more preferably 0.7 mm or less.
- the reflective material 1 preferably has a groove at least on the back side of the ridge portion of the convex portion.
- the groove can be appropriately selected from the following specific examples depending on the material and thickness of the reflective material 1.
- Groove shape V-shaped, U-shaped, U-shaped, straight
- the reflective material 1 has substantially no penetrating portion at the ridgeline portion of the convex portion.
- the penetrating portion referred to here is a portion that penetrates the material from the front surface side to the rear surface side of the reflective material like a perforated cut portion. By not having the penetrating portion, it is possible to prevent light from leaking therefrom.
- the lighting reflector of the present invention including a plurality of reflecting materials is a preferable aspect for industrially realizing a reflector shape faithful to optical design.
- the reflective material specified in the present invention and further including the reflective material 2 having no ridge-shaped unevenness is complicated, which corresponds to the shape and arrangement of the light source.
- This is a preferred embodiment for realizing an illumination reflector having a surface shape.
- the illumination reflector of the present invention is used for illumination using a plurality of U-shaped cold cathode tubes, as shown in FIG. 13, as shown in the example of FIG.
- a portion for installing the member for supporting the light source is a reflection portion.
- a parallel crosses shape as shown in Fig. 14.
- the girder-like unevenness is formed, for example, by making a cutout in the direction orthogonal to the longitudinal direction of the ridge of the reflection material 1 and inserting a reflection material 2 having a shape as shown in FIG. 15 into the cutout portion. be able to.
- the shape of the notch and the shape of the reflective material inserted in the notch can be selected according to the desired optical design.
- the reflective material 2 has a finer shape than the ridge-shaped unevenness of the reflective material 1 as described above, is not reinforced by a reinforcing material, and has ridge-shaped protrusions. I'm sorry.
- the shape of the boundary between the reflecting materials can be designed according to the required characteristics. For example, in applications that require surface continuity between reflective materials, if the reflective materials to be combined have different surface shapes, it is not possible to cover the difference with one of the reflective materials or to close the difference with a filler material. Preferred embodiment.
- Fig. 17 shows an example in which differences in surface shape are not treated.
- Figures 18 and 19 show examples of the different parts being closed.
- FIGS. 20 and 21 show examples of those used in superposition.
- the lighting reflector of the first aspect of the present invention includes a flexible reinforcing material in addition to the reflective material 1, and the reinforcing material is a back side of the reflective material 1 on the one surface side. It is characterized in that the bottoms of the recesses are connected to each other to reinforce the uneven shape.
- the material of the reinforcing material can be appropriately selected from flexible materials such as a polymer film, a fabric, and a nonwoven fabric according to the use.
- the reinforcing material with functions such as reflection, light shielding, heat transfer, heat dissipation, conductivity, and insulation according to the application.
- the reinforcing material also satisfies the reflective performance as a reflective material.
- the above-described material of the reflective material can be preferably used.
- the reflective material 1 and the reinforcing material are made of a polyester film, because they are excellent in disposal property and recyclability, and are also excellent in weight reduction of the reflector and stability of material properties.
- one reinforcing material reinforces the entire reflective material or partially reinforces it can be appropriately selected according to the application. For example, in order to reduce the weight and use amount, it is a preferable embodiment to partially connect with a tape-shaped reinforcing material. In addition, when the production process is intended to be simplified or when the reflector for lighting needs to have high shape retention, it is a preferable embodiment to integrate the entire structure with a reinforcing material.
- Whether the entire contact surface of the reflective material and the reinforcing material is integrated or partially integrated may be appropriately selected according to the application and the constituent material. Integrating all contact surfaces of the reflective material and the reinforcing material is a preferable mode for strong integration, It is preferable to integrate them integrally because the difference in the thermal contraction rate and the difference in the thermal expansion rate is absorbed, and the structure of the reflector for illumination as a whole is not generated.
- Means for integrating the reflective material and the reinforcing material may be appropriately selected according to the intended use. Examples thereof include an adhesive, an adhesive, heat fusion, hooking, screwing, and sewing. Can be.
- integrating a reinforcing material made of a polyester biaxially stretched film with a reflective material with an adhesive is one of the preferable embodiments because the reflective material is not deteriorated by thermal or physical damage.
- the lighting reflector of the present invention includes a plurality of reflective materials as described above, it may include a connecting material for connecting the plurality of reflective materials due to a shift in the position of the reflective material. This is preferable for preventing desired optical characteristics from being impaired.
- the material of the connecting material can be appropriately selected from polymer membranes, fabrics, nonwoven fabrics, FRP, metal foils, and the like according to the application.
- the connecting material is flexible because it prevents distortions caused by impacts during transportation and work, and enables the reflector for lighting to follow the deformation so that it can conform to the desired shape. Shown is a preferred embodiment.
- connection material it is a preferred embodiment to impart functionalities such as reflection, light shielding, heat transfer, heat dissipation, conductivity, and insulation to the connection material according to the application.
- functionalities such as reflection, light shielding, heat transfer, heat dissipation, conductivity, and insulation
- the connection material also satisfies the reflection performance as a reflection material.
- the above-described material of the reflective material can be preferably used.
- the configuration in which the reinforcing material also plays the role of the connecting material is preferable in that the configuration of the reflection plate is simplified, thereby improving reliability, reducing weight, and reducing costs.
- the reflective material 1, the reinforcing material, and the connecting material are made of a polyester film, because they are excellent in disposal property and recyclability, are lightweight in the reflective plate, and are excellent in stability of material properties.
- a polymer material composed of the same main component as the reflection material for the connection material.
- connection material connects all of the plurality of reflective materials, or If the connecting material has flexibility and also functions as a reinforcing material, it can be appropriately selected according to the application as in the above-mentioned reinforcing material.
- the coupling material is not flexible, it is preferable to partially dispose the coupling material so as not to impair the flexibility of the reflector.
- the entire contact surface of the reflective material and the connecting material is integrated or partially integrated may be appropriately selected depending on the application and the constituent material. Integrating all the contact surfaces of the reflective material and the connecting material is a preferable mode for strong integration, and partially integrating the contact material absorbs a difference in thermal contraction rate and a difference in thermal expansion rate to achieve illumination. This is preferable because distortion of the structure occurs as a whole of the reflection plate for use.
- Means for integrating the reflective material and the connecting material may be appropriately selected according to the application, and examples thereof include an adhesive, an adhesive, heat fusion, hooking, screwing, and sewing. Can be.
- the connecting material has the function of the above-mentioned seaming material.
- Fig. 22 shows an example where the connection material has the function of a seaming material.
- a reflection material for lighting having a complicated shape is obtained by providing a ridge-shaped unevenness as shown in FIG. 24 to a reflection material 1 cut into a shape as shown in FIG. It is possible to realize a plate.
- the reflective material forms a side portion that is continuous with the bottom of the reflector, and the one surface side at the boundary between the bottom and the side portion. It has a groove on the back side.
- Conventional products usually employ a perforation with a penetrating portion at the boundary between the bottom and the side, but the adoption of a groove ensures good installation that follows the internal shape of the lighting housing. While holding, it can be prevented from being damaged from the boundary between the bottom and the side when installing the reflector or correcting an incorrect installation.
- this is a preferable mode for faithfully reproducing the optical design by preventing the surface shape or material such as breakage from remarkably deteriorating at the boundary between the bottom and the side.
- the boundary between the bottom and the side has substantially no through portion in order to prevent light from leaking from the through portion. Les ,.
- grooves and the reflective material in the second present invention those described in the first present invention can be used.
- the constituent material is mainly composed of a thermoplastic polymer
- it is heat-fixed to the shape of the reflector at a temperature not lower than the operating temperature, preferably not lower than 70 ° C. It is preferable to do
- the lighting reflector of the present invention can easily obtain a three-dimensional structure that reflects an arbitrary optical design corresponding to various light source shapes, and is therefore a backlight for information display such as a signboard light source or a liquid crystal TV backlight. It can be used as an even more preferable embodiment as an apparatus.
- A No remarkable wrinkles are observed in any of the folds, and the folds are formed linearly.
- B At least some of the folds have wrinkles, but the folds are formed almost linearly.
- C The large wrinkles on at least a portion of the fold, a certain portion force s crease is in zigzag.
- the boundary portion of the above (5) was permeated through a fluorescent lamp, visually observed, and evaluated according to the following criteria. A: No light leakage is observed at the boundary.
- the boundary part of the above (5) was opened and closed in the following range. Observation of the boundary area is performed by observing and enlarging observations (using Tokai Sangyo Co., Ltd. Peak 'Loupe 22X') from both sides of the reflective material, and the generation of cracks and wrinkles extending to parts other than the folds' growth etc. They were also markedly damaged.
- the angle under the following conditions is the angle at the boundary between the bottom and the side.
- B l. Omm or less, but more than 0.5 mm.
- A 0.5 mm or less.
- A: and A L / LO are less than SO.007.
- A It can be installed as if there is no physical interference.
- FIG. 26 shows a conceptual diagram of the installation of the sixth embodiment.
- FIG. 28 shows a schematic diagram of the installation stability evaluation stand viewed from the side.
- FIG. 27 shows a conceptual diagram of the lighting reflector of Example 6 in which a hole was formed and used as a sample for evaluation of installation stability.
- the measurement was performed using 201BLM02 (interval between cold cathode tubes: 26 mm) manufactured by Tama Electric Industries, Ltd. as a direct backlight.
- the ready-made film bonded in the backlight was peeled off, and a material a described later having a space of 150 mm ⁇ 170 mm near the center was attached so as not to interfere with the support member of the cold cathode tube.
- the 150 mm side of the space was parallel to the cold cathode tube, and one end was 7 mm from the position where the center line of the innermost cold cathode tube was lowered to the installation plane.
- a reflector for illumination to be measured was attached with double-sided tape in the space along one of the 170 mm sides.
- the brightness (cd / m 2 ) was measured at a distance of lm from the camera to the backlight unit surface, a camera lens aperture fl6, and a shutter speed of 1Z250 sec.
- the effective luminance data range was a rectangular area surrounded by a center of 78 mm with 170 mm in the direction perpendicular to the CCFL, and a center of 80 mm with 150 mm in the direction parallel to the CCFL.
- the obtained luminance data was analyzed as a table in which the direction parallel to the cold cathode tubes was a column and the direction perpendicular to the cold cathode tubes was a row.
- the maximum value of this luminance is defined as a peak (Pxl ⁇ , ⁇ is the number of peaks, X is the Xth row), and the minimum value with the lowest luminance between adjacent peaks is the bottom (Qxl Qxm, m is the number of bottoms).
- X indicates the x-th row
- Qxl is the lowest luminance value between Pxl and Px2).
- the average row peak luminance value P xA and the average row bottom luminance value QxA in the direction parallel to the cold cathode tubes were determined by the following equations.
- PxA (Pxl + Px2 H + Pxn) / n
- One cycle was defined as 26 mm centered on the peak, and the average of the brightness for S cycles (S is an integer) was taken as the row average brightness SxA.
- S is an integer
- the average value of the PxA, QxA, and SxA values of each row was obtained to obtain the average peak luminance, the average bottom luminance, and the average luminance. The larger each numerical value of the front luminance characteristics shown in Table 3, the more preferable.
- FIG. 29 shows a conceptual diagram in which the cross-sections of the cold-cathode tube and the sample lamp when evaluating the sample line and the corresponding luminance distribution are superimposed.
- the measurement was performed using 201BLM02 (interval between cold cathode tubes: 26 mm) manufactured by Tama Electric Industry Co., Ltd. as a direct backlight.
- the ready-made film bonded in the backlight was peeled off, and a material a described later having a space of 100 mm ⁇ 100 mm was attached near the center so as not to interfere with the support member of the cold cathode tube.
- the space is positioned so that four cold cathode tubes can enter, with the middle between the two central cold cathode tubes at the center of one side of the space, and the cold cathode tubes and the other side of the space are parallel. It was set to become.
- a lighting reflector to be measured was stuck in the space with double-sided tape.
- the ridges of the ridge-shaped unevenness were set so that the ridge portions were located between the adjacent cold cathode tubes.
- a 5 mm wide black tape was wrapped around the two cold cathode tubes so as to be diagonal to the center of the space of 1 OO mm x 100 mm 26 mm XI 5 mm.
- Anti-backlight As shown in a schematic diagram in Fig. 35, the material a described below, with a notch at the position of the cold cathode tube, is formed into a cylindrical shape of lOOmm x 100mm square so as to cover the space between the transparent PMMA plate attached to the upper part from the surface of the radiation material.
- EYES CALE-3 manufactured by Imaizumi Shokai Co., Ltd. was used as a luminance unevenness measuring device.
- the luminance (cd / cd / mm) was set by setting the distance between the camera and the surface of the backlight unit lm, the lens aperture of the camera fl 6, and the shutter speed 1Z250 sec. m 2 ) was measured.
- the obtained luminance data was analyzed as a table in which the direction horizontal to the cold cathode tubes was a column and the direction perpendicular to the cold cathode tubes was a row. Analysis of the luminance data in each row to evaluate the luminance distribution in the direction perpendicular to the CCFL showed a luminance distribution where the luminance reached a local maximum at the part that coincided with the position of the CCFL.
- the maximum value of the luminance was defined as a peak (Pxl ⁇ , ⁇ indicates the number of peaks, and X indicates the X-th row).
- the luminance sampling points were 15 rows between the peaks.
- 54 rows sampled luminance in the direction parallel to the cold cathode tubes.
- the luminance data in the central 9 columns of 15 columns and the central 24 rows of 54 rows were used as the valid data range.
- the two effective points shown in Fig. 36 were used as the effective data range in the measurement range, and the average of each was used for evaluation.
- the evaluation was performed with the value obtained by dividing the difference between the maximum luminance and the minimum luminance in the column direction in the valid data range by the average luminance as ⁇ . The larger the value of ⁇ , the better in terms of light separation.
- 193E60V manufactured by Toray Industries Co., Ltd. obtained by coating a biaxially stretched PET film with a light-proofing agent was used as material a.
- Material a had a thickness of 193 x m, an average reflectance of 98%, and a thermal shrinkage in the longitudinal direction of the film of 0.7%.
- the material b was 188E60L, a biaxially stretched PET film manufactured by Toray Industries, Inc.
- the thickness of the material b was 188 zm, the average reflectance was 98%, and the thermal shrinkage in the longitudinal direction of the film was 1.1%.
- Material b was annealed at 200 ° C to obtain material c.
- the heat shrinkage of the material c in the longitudinal direction of the film was 0.6%.
- the material d was 188S10, a biaxially stretched PET film manufactured by Toray Industries, Inc.
- the thickness of the material d was 188 ⁇ m, and the heat shrinkage in the longitudinal direction of the film was 1%.
- Material d was subjected to annealing at 200 ° C to obtain material e.
- the heat shrinkage of the material e in the longitudinal direction of the film was 0.5%.
- the gap W at the top is 33 mm, and the fold angle at the top was bent so as to form a ridge-like unevenness in which each surface was a flat surface with a height of 8 mm and a height H of 8 mm.
- a double-sided adhesive tape (# 500 manufactured by Nitto Denko Corporation) was adhered to the entire surface of one side of the material d, and used as a reinforcing material.
- the reinforcing material was attached to the entire bottom surface of the reflective material 1 so as to connect the bottoms of the concave portions, and was reinforced.
- a double-sided adhesive tape (# 500, manufactured by Nitto Denko Corporation) was applied to the entire surface of one side of the material e, and used as a reinforcing material.
- the material a was attached to the opposite side of the light-resistant agent-containing layer with the material a via a double-sided adhesive tape (# 500 manufactured by Nitto Denko Corporation) to form a composite.
- a double-sided adhesive tape # 500 manufactured by Nitto Denko Corporation
- 5 mm on both sides of a portion to be folded at the time of assembling the reflector for lighting, that is, a portion to which the material e having a width of 1 mm was attached was removed, and the back side of the reflective material a was exposed. Thereafter, in the same manner as in Example 1, the reflective material 1 was molded.
- a double-sided adhesive tape (# 500, manufactured by Nitto Denko Corporation) was applied to the entire surface of one side of the material e, and used as a reinforcing material.
- the reinforcing material was attached to the entire bottom surface of the reflective material 1 so as to connect the bottoms of the concave portions, and was reinforced.
- the reflection material 1 was bent so that the light-resistant agent-containing layer of the material a was turned upside down, and the ridge shape such as the interval between the tops, the fold angle and the height was the same as in Example 1.
- a double-sided adhesive tape (# 500, manufactured by Nitto Denko Corporation) was applied to the entire surface of one side of the material e, and used as a reinforcing material.
- the reinforcing material was attached to the entire bottom surface of the reflective material 1 so as to connect the bottoms of the concave portions, and was reinforced.
- Example 2 Compared with Example 2, the obtained reflector had wrinkles in the folds and deteriorated linearity. Was something.
- a material e was attached over the entire surface via a double-sided adhesive tape (# 500 manufactured by Nitto Dye Corporation) to form a composite.
- the composite film was perforated at the portion to be folded, and folded so that the shape of the ridge, such as the height of the gap at the top, the angle of the fold, etc., was the same as in Example 1, to obtain a reflective material 1.
- a double-sided adhesive tape (# 500, manufactured by Nitto Denko Corporation) was applied to the entire surface of one side of the material e, and used as a reinforcing material.
- the reinforcing material was attached to the entire bottom surface of the reflective material 1 so as to connect the bottoms of the concave portions, and was reinforced.
- the radius of curvature R at the apex of the top is larger at the portion where the perforation does not penetrate, and cracks are observed at the boundary between the perforations and the quality is lower than in Example 2.
- the obtained reflector was unstable, whose dimensions changed greatly under moist heat.
- double-sided adhesive tape (Nitto Denko Corporation A 0.5 mm thick aluminum plate was pasted through # 500) to make a composite.
- the composite material was pressed using a press machine so that the light-resistant agent-containing layer of the material a was turned upside down. It was bent to be the same as.
- the obtained reflector had a large radius of curvature R at the apex at the top.
- Example 1 Groove Yes No AAAAA
- Example 2 Groove Yes No AAAAA
- Example 3 Groove Yes Material e AAAAA
- Example 4 Yes No Not evaluated Not evaluated CB
- Example 5 Sewing machine H Material e CAABC Comparative
- Example 1 Perforated None None ACCBA Comparative Example 2 None Aluminum plate CAAAA
- a groove was formed by using a ball-point pen with a rule diameter of 0.5 mm to make a press mark so as to form a straight line parallel to the long side. Then, the reflective material 1 was bent so as to form a ridge having a cross-sectional shape of an isosceles triangle having a base of 12 mm and an isosceles of 9 mm each, thereby obtaining a 90 mm ⁇ 170 mm reflective material 1.
- the material a was cut into 60 mm X 170 mm to obtain a planar reflective material 2.
- the material c was cut into 150 mm X 170 mm, and double-sided adhesive tape (# 500 manufactured by Nitto Denko Corporation) was applied to the entire surface of one side thereof, thereby forming a reinforcing material which also served as a connecting material.
- the reflective material 1 and the reflective material 2 were arranged side by side on the reinforcing material and bonded via a double-sided adhesive tape to obtain a 150 mm ⁇ 170 mm lighting reflector.
- the obtained reflector for lighting had extremely excellent characteristics as shown in Table 2.
- Reinforcement material A lighting reflector was obtained in the same manner as in Example 6, except that material d was used instead of material c as a material for forming the connection material.
- a reflector for illumination was obtained in the same manner as in Example 6 except that a lmm-thick aluminum plate was used in place of the material c as a material for forming the reinforcing material and the connection material.
- Reflective material 1 was not used.
- Reflecting material 2 was stuck on the reinforcing material via a double-sided adhesive tape to obtain a 150 mm ⁇ 170 mm reflector for lighting.
- the obtained illumination reflector had inferior luminance characteristics to Example 6.
- a groove was formed using a ball-point pen with a ball diameter of 0.5 mm so as to make a press mark so as to form a straight line parallel to the long side. Then, the reflective material 1 was bent so as to form a ridge having a cross-sectional shape of an isosceles triangle having a base of 12 mm and an isosceles of 9 mm each, thereby obtaining a 150 mm ⁇ 170 mm reflective material 1.
- Reflective material 2 was not used.
- the lmm-thick anoremi board was cut into 150 mm x 170 mm, and double-sided adhesive tape (# 500, manufactured by Nitto Denko Corporation) was attached to the entire surface of one side to use as a reinforcing material.
- the reflective material 1 was stuck on the reinforcing material via a double-sided adhesive tape to obtain a 150 mm ⁇ 170 mm reflector for lighting.
- the obtained reflector for lighting was slightly inferior in the freedom of installation and the adaptability to installation, but was excellent in luminance characteristics.
- the reflection material 1 and the reflection material 2 were arranged side by side without using a reinforcing material and evaluated as a reflector for lighting.
- a groove was formed at the position of) by using a ball-point pen with a ball diameter of 0.5 mm so as to make a push mark so as to be linear in parallel with the long side. Further, as shown in FIG. 30, an isosceles triangle-shaped hole having a height of 3 mm and a base of 2 mm, and a cut was made in a direction perpendicular to the base from the center of the base of the isosceles triangle. This material was bent so as to form a regular triangle ridge having a cross-sectional shape of 8 mm at the base and an isosceles length of 8 mm, thereby obtaining a 100 mm ⁇ 100 mm reflective material 1.
- the material b was cut into lOOmm x 100mm, and a double-sided adhesive tape (# 500, manufactured by Nitto Denko Corporation) was attached to the entire surface of one side thereof to obtain a reinforcing material.
- a groove was formed at position (2) by using a ball-point pen with a ball diameter of 0.5 mm so as to make a straight line parallel to the long side (Fig. 32).
- the cross-sectional shape is Then, the reflection material 1 having a size of 100 mm ⁇ 100 mm was obtained as shown in FIG.
- the reflective material 1 was stuck on the reinforcing material via a double-sided adhesive tape to obtain a 100 mm ⁇ 100 mm reflector for lighting.
- Reflective material 1 was not used.
- the material a was cut into 100 mm ⁇ 100 mm to obtain a planar reflective material 2.
- Reflecting material 2 was stuck on the reinforcing material via a double-sided adhesive tape to obtain a 100 mm ⁇ 100 mm reflector for lighting.
- bent sides are formed 150 ° inward along the groove of 60mm from both ends of the short side, and then bent edges are formed 150 ° outward along the groove of 10mm from both ends of the short side.
- a reflection plate was formed.
- the material d was pasted through the substrate 500) to form a composite.
- the composite film was cut into a long side of 570 mm and a short side of 450 mm. Next, a straight line parallel to the long side at 10 mm and 60 mm at both ends of the short side was taken as a crease, and the 5 mm on each side, that is, the part where the material d with lmm width was attached was removed, and the back side of the material a was removed. Then, a notch-shaped groove having a depth of 0.05 mm was formed along the fold.
- the reflector was bent in the same manner as in Example 10 to obtain a reflector.
- Material b was cut into a long side of 570 mm and a short side of 450 mm. Next, a perforation was made on the straight line as a portion where a straight line parallel to the long side at 10 mm and 60 mm from both ends of the short side was taken as a fold. Next, the sheet was bent in the same manner as in Example 10 to form a reflecting plate.
- a reflecting plate was formed in the same manner as in Example 10 except that no groove was formed by the impression of the ballpoint pen.
- the obtained reflector had wrinkles at the boundaries and had poor linearity.
- double-sided adhesive tape (Nitto Denko Corporation # The material c was pasted through the substrate 500) to form a composite.
- the composite film was cut into a long side of 570mm and a short side of 450mm. Next, a perforation was made on the straight line as a part of a straight line parallel to the long side at 10 mm and 60 mm at both ends of the short side. Next, the reflector was bent in the same direction as in Example 10 so as not to cause significant damage to the boundary, thereby forming a reflector.
- the illumination reflector of the present invention can easily obtain a three-dimensional structure reflecting an arbitrary optical design corresponding to various light source shapes, it is particularly suitable as a backlight device for information display such as a light source for a signboard or a backlight for a liquid crystal TV. It can be used as a preferred embodiment.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005517032A JP4946053B2 (ja) | 2004-01-13 | 2005-01-12 | 照明用反射板および情報表示用バックライト装置 |
EP05703456A EP1712834A4 (en) | 2004-01-13 | 2005-01-12 | REFLECTIVE PLATE AND TRANSLUCENT LIGHT PANEL |
US10/585,835 US7562990B2 (en) | 2004-01-13 | 2005-01-12 | Reflector for lighting and back light device for displaying information |
KR1020067013124A KR101085096B1 (ko) | 2004-01-13 | 2005-01-12 | 조명용 반사판 및 정보표시용 백라이트 장치 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-005367 | 2004-01-13 | ||
JP2004005367 | 2004-01-13 | ||
JP2004017975 | 2004-01-27 | ||
JP2004-017975 | 2004-01-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005068899A1 true WO2005068899A1 (ja) | 2005-07-28 |
Family
ID=34797725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/000217 WO2005068899A1 (ja) | 2004-01-13 | 2005-01-12 | 照明用反射板および情報表示用バックライト装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7562990B2 (ja) |
EP (1) | EP1712834A4 (ja) |
JP (2) | JP4946053B2 (ja) |
KR (1) | KR101085096B1 (ja) |
TW (1) | TWI368049B (ja) |
WO (1) | WO2005068899A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2005101066A1 (ja) * | 2004-04-12 | 2008-03-06 | 古河電気工業株式会社 | 光反射板 |
WO2009110337A1 (ja) * | 2008-03-05 | 2009-09-11 | 東レ株式会社 | 熱賦形光学フィルム用ポリエステル樹脂およびそれを用いた二軸配向ポリエステルフィルム |
US9226421B2 (en) | 2012-07-17 | 2015-12-29 | Seiko Epson Corporation | Electro-optical device with reinforcing structure and electronic apparatus having the electro-optical device |
US10209564B2 (en) | 2016-03-29 | 2019-02-19 | Au Optronics Corporation | Backlight module with porous optical film and a wavelength conversion layer disposed above a light source where the optical film has a plurality of light emission structures |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100948397B1 (ko) * | 2007-07-31 | 2010-03-19 | 주식회사 옵토필 | 발광다이오드를 이용한 면발광 조명장치 |
KR101049734B1 (ko) * | 2009-04-07 | 2011-07-19 | 최종석 | 등기구용 엘이디 조립체 |
JP5486275B2 (ja) * | 2009-11-25 | 2014-05-07 | パナソニック液晶ディスプレイ株式会社 | 液晶表示装置 |
USD623340S1 (en) | 2010-03-26 | 2010-09-07 | Orion Energy Systems, Inc. | Reflector for a lighting fixture |
US8696154B2 (en) | 2011-08-19 | 2014-04-15 | Lsi Industries, Inc. | Luminaires and lighting structures |
KR101304873B1 (ko) * | 2011-08-24 | 2013-09-06 | 엘지이노텍 주식회사 | 조명 장치 및 조명 장치의 광학부재 |
CN104344280A (zh) | 2013-07-31 | 2015-02-11 | 扬升照明股份有限公司 | 光源模块 |
CN105451903B (zh) * | 2013-08-05 | 2017-09-15 | 东洋铝株式会社 | 可见光反射材料用铝箔及其制造方法 |
KR102212067B1 (ko) | 2014-06-20 | 2021-02-08 | 삼성디스플레이 주식회사 | 백라이트 유닛 |
JP2019035934A (ja) * | 2016-12-26 | 2019-03-07 | 東レ株式会社 | 突起を有する反射板 |
CN114109784A (zh) * | 2021-12-02 | 2022-03-01 | 科希曼电器有限公司 | 一种可有效降低压缩机连接管路应力应变数值的特殊结构 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6269423U (ja) * | 1985-10-18 | 1987-05-01 | ||
JPH04323687A (ja) * | 1991-04-23 | 1992-11-12 | Kuraray Co Ltd | 面照明装置 |
JPH0667174A (ja) * | 1992-08-18 | 1994-03-11 | Kimoto & Co Ltd | ランプリフレクタ |
JP3043515U (ja) * | 1997-05-19 | 1997-11-28 | 弘栄貿易株式会社 | 波形状光反射部材 |
JPH10125119A (ja) * | 1996-10-21 | 1998-05-15 | Sony Corp | バックライト装置 |
JPH11198284A (ja) | 1998-01-19 | 1999-07-27 | Mitsubishi Plastics Ind Ltd | プレス加工性に優れた光反射体 |
JP2002372933A (ja) * | 2001-06-15 | 2002-12-26 | Koichi Matsui | 直下型照明装置 |
JP2003022701A (ja) | 2001-07-09 | 2003-01-24 | Furukawa Electric Co Ltd:The | ライトボックス |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4130351A (en) * | 1977-08-04 | 1978-12-19 | Luboshez Sergius N F | Radio-chromic combined absorbing reflecting and transmitting panel |
JPS6269423A (ja) * | 1985-09-20 | 1987-03-30 | Toshiba Corp | 電子管用金属部品およびその製造方法 |
JPH0741855Y2 (ja) * | 1989-09-05 | 1995-09-27 | トヨタ自動車株式会社 | 内燃機関のpcv装置 |
JPH0890989A (ja) * | 1994-09-22 | 1996-04-09 | Roland D G Kk | 組立用シート体の折り曲げ方法 |
JP3808992B2 (ja) * | 1997-11-21 | 2006-08-16 | 三菱電機株式会社 | 液晶パネルモジュール |
JP2002040214A (ja) * | 2000-07-25 | 2002-02-06 | Toray Ind Inc | 面光源反射板用白色フィルム |
JP4547783B2 (ja) * | 2000-08-04 | 2010-09-22 | 東レ株式会社 | 面光源反射板用白色フィルム |
JP4368075B2 (ja) * | 2000-11-06 | 2009-11-18 | シャープ株式会社 | 面型照明装置 |
KR100562971B1 (ko) * | 2000-12-14 | 2006-03-23 | 미쯔이카가쿠 가부시기가이샤 | 반사체, 사이드라이트형 백라이트장치 및 반사체용 기판 |
-
2005
- 2005-01-12 EP EP05703456A patent/EP1712834A4/en not_active Withdrawn
- 2005-01-12 JP JP2005517032A patent/JP4946053B2/ja active Active
- 2005-01-12 US US10/585,835 patent/US7562990B2/en not_active Expired - Fee Related
- 2005-01-12 WO PCT/JP2005/000217 patent/WO2005068899A1/ja active Application Filing
- 2005-01-12 KR KR1020067013124A patent/KR101085096B1/ko not_active IP Right Cessation
- 2005-01-13 TW TW094100946A patent/TWI368049B/zh not_active IP Right Cessation
-
2011
- 2011-11-01 JP JP2011239953A patent/JP5528412B2/ja active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6269423U (ja) * | 1985-10-18 | 1987-05-01 | ||
JPH04323687A (ja) * | 1991-04-23 | 1992-11-12 | Kuraray Co Ltd | 面照明装置 |
JPH0667174A (ja) * | 1992-08-18 | 1994-03-11 | Kimoto & Co Ltd | ランプリフレクタ |
JPH10125119A (ja) * | 1996-10-21 | 1998-05-15 | Sony Corp | バックライト装置 |
JP3043515U (ja) * | 1997-05-19 | 1997-11-28 | 弘栄貿易株式会社 | 波形状光反射部材 |
JPH11198284A (ja) | 1998-01-19 | 1999-07-27 | Mitsubishi Plastics Ind Ltd | プレス加工性に優れた光反射体 |
JP2002372933A (ja) * | 2001-06-15 | 2002-12-26 | Koichi Matsui | 直下型照明装置 |
JP2003022701A (ja) | 2001-07-09 | 2003-01-24 | Furukawa Electric Co Ltd:The | ライトボックス |
Non-Patent Citations (1)
Title |
---|
See also references of EP1712834A4 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2005101066A1 (ja) * | 2004-04-12 | 2008-03-06 | 古河電気工業株式会社 | 光反射板 |
WO2009110337A1 (ja) * | 2008-03-05 | 2009-09-11 | 東レ株式会社 | 熱賦形光学フィルム用ポリエステル樹脂およびそれを用いた二軸配向ポリエステルフィルム |
US9226421B2 (en) | 2012-07-17 | 2015-12-29 | Seiko Epson Corporation | Electro-optical device with reinforcing structure and electronic apparatus having the electro-optical device |
US10209564B2 (en) | 2016-03-29 | 2019-02-19 | Au Optronics Corporation | Backlight module with porous optical film and a wavelength conversion layer disposed above a light source where the optical film has a plurality of light emission structures |
Also Published As
Publication number | Publication date |
---|---|
JP2012078838A (ja) | 2012-04-19 |
JP4946053B2 (ja) | 2012-06-06 |
JPWO2005068899A1 (ja) | 2007-12-27 |
US7562990B2 (en) | 2009-07-21 |
KR20070007263A (ko) | 2007-01-15 |
EP1712834A4 (en) | 2009-12-02 |
EP1712834A1 (en) | 2006-10-18 |
KR101085096B1 (ko) | 2011-11-18 |
JP5528412B2 (ja) | 2014-06-25 |
TW200528765A (en) | 2005-09-01 |
TWI368049B (en) | 2012-07-11 |
US20080123352A1 (en) | 2008-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2005068899A1 (ja) | 照明用反射板および情報表示用バックライト装置 | |
US8852470B2 (en) | Diffuser-integrated prism sheet for backlight units and method of manufacturing the same | |
CN101660721A (zh) | 光学元件层压体、背光件和液晶显示装置 | |
CN101191860A (zh) | 二合一导光板 | |
JP4300826B2 (ja) | 光拡散性フィルムおよびそれを用いた直下型面光源 | |
KR102097667B1 (ko) | 백라이트 유닛용 광학 시트 및 백라이트 유닛 | |
US20010050816A1 (en) | Spread illuminating apparatus | |
JP2004145239A (ja) | 反射シート及びそれを用いたリフレクター、サイドライト型バックライト装置、液晶表示装置 | |
US8021010B2 (en) | Light-emitting module, diffusion unit and diffusion sheet | |
US20080123192A1 (en) | Two-in-one light guide means | |
JP2002098808A (ja) | 面光源反射部材用白色積層ポリエステルフィルム | |
JP4622664B2 (ja) | 面状発光体 | |
JP4493884B2 (ja) | 積層導光板 | |
JP2003222714A (ja) | 光反射材料及びそれを用いた光源装置 | |
CA2562807A1 (en) | Light reflecting plate | |
CN100538450C (zh) | 液晶面板及液晶显示装置 | |
KR20130035537A (ko) | 액정 표시 장치 | |
WO2013011774A1 (ja) | 面状照明装置 | |
US20030096067A1 (en) | Light-reflective material and light source device using the same | |
CN215264365U (zh) | 一种投影膜片、投影屏幕及投影系统 | |
JP2015031893A (ja) | 照明装置用レンズフィルム積層体 | |
US20220066263A1 (en) | Backlight and liquid crystal display device | |
JPH11273434A (ja) | 面光源素子 | |
JP2006145652A (ja) | 光反射シート付き液晶画面用フレーム及びその製造方法 | |
JP2008078085A (ja) | 光拡散板及び面光源装置並びに液晶表示装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2005517032 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020067013124 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10585835 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580002382.0 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005703456 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2005703456 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067013124 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 10585835 Country of ref document: US |