WO2013121671A1 - Procédé et dispositif de création de plaque de guidage de lumière pour télévision à cristaux liquides - Google Patents

Procédé et dispositif de création de plaque de guidage de lumière pour télévision à cristaux liquides Download PDF

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Publication number
WO2013121671A1
WO2013121671A1 PCT/JP2012/082523 JP2012082523W WO2013121671A1 WO 2013121671 A1 WO2013121671 A1 WO 2013121671A1 JP 2012082523 W JP2012082523 W JP 2012082523W WO 2013121671 A1 WO2013121671 A1 WO 2013121671A1
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WO
WIPO (PCT)
Prior art keywords
guide plate
light guide
print data
light
liquid crystal
Prior art date
Application number
PCT/JP2012/082523
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English (en)
Japanese (ja)
Inventor
要一 阿部
智雄 中嶋
Original Assignee
武藤工業株式会社
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Filing date
Publication date
Application filed by 武藤工業株式会社 filed Critical 武藤工業株式会社
Publication of WO2013121671A1 publication Critical patent/WO2013121671A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0065—Manufacturing aspects; Material aspects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity

Definitions

  • the present invention relates to a method and an apparatus for producing a light guide plate for a liquid crystal TV (television).
  • the present invention creates print data for light reflection used for a light guide plate by image creation software stored in a computer, transfers the created print data to an inkjet printer, A method of creating a light guide plate for a liquid crystal TV by performing reflection printing on a printing surface of a light guide plate with white ink on a printing surface of the light guide plate by using a printer to scatter light emitted from the light source into the light guide plate.
  • a process of creating a luminance distribution pattern diagram for a liquid crystal TV light guide plate in advance, a process of creating print data for light reflection by image software with reference to the reference luminance distribution pattern diagram, and inkjet printing the print data A process for converting the print data to a discharge format and a process for printing the print data on the printing surface of the light guide plate by an inkjet printer. Characterized by comprising and. Further, according to the present invention, the process of creating the print data displays a reference luminance distribution pattern diagram side by side with a print data creation edit area on a computer screen, or displays a reference luminance distribution pattern diagram in the print data creation edit area. It is characterized by being displayed overlaid.
  • the present invention also includes a process of mounting a printed light guide plate on an LED lighting stand and measuring the luminance of the light emitting surface of the light guide plate to create a luminance distribution pattern diagram, the measured luminance distribution pattern, and the reference And a process of comparing the luminance distribution patterns and determining the quality of the print data.
  • the present invention is also characterized in that the reference luminance distribution pattern diagram and the measured luminance distribution pattern diagram express the luminance in color.
  • the print data is composed of a gradation pattern.
  • the present invention is characterized in that the dot diameter or print pattern of the print data corresponds to the thinness of the TV liquid crystal panel so that the dots on the printing surface of the light guide plate are not reflected on the liquid crystal panel.
  • the ink jet printer is provided with a white ink supply unit that stores a plurality of types of white ink for determining the color temperature of the light emitting surface of the light guide plate in an ink tank for each type.
  • a recording head is provided, and one of the ink tanks is connected to each recording head so that each recording head can eject different types of white ink, and the ink jet printer is connected to the light guide plate.
  • the reflection printing is formed, and a light guide plate having a color temperature corresponding to a selected combination of one type or a plurality of types of white ink is created.
  • the present invention is also characterized in that the plurality of types of white inks that determine the color temperature of the light emitting surface of the light guide plate have different particle size distributions of titanium oxide in the respective inks.
  • the present invention is also characterized in that the plurality of types of white inks that determine the color temperature of the light emitting surface of the light guide plate have different proportions of titanium oxide content in the respective inks.
  • the present invention also includes an inkjet printer and a computer storing image creation software for creating print data of the light reflection pattern.
  • the print data of the light reflection pattern is transferred to the ink jet printer and is guided by the ink jet printer.
  • a device for producing a light guide plate by applying reflection printing for scattering light emitted from a light source to the inside of the light guide plate on a printing surface of the light plate using white ink containing titanium oxide, and printing on a computer
  • the print density is increased toward the set high density set point, and the result of measuring the luminance distribution pattern of the light guide plate is approximated to the reference luminance distribution pattern diagram. To do.
  • the present invention can provide a liquid crystal TV light guide plate having a luminance distribution pattern required for a liquid crystal TV light guide plate.
  • FIG. 4 and 6 are schematic views of a light guide plate printing apparatus including the inkjet printer 2 and a computer 4 such as a personal computer connected to the controller of the printer 2 via an input / output interface.
  • the light guide plate 6 is detachably held on the table 8 of the printing apparatus with the printing surface 6b on the back side of the light emitting surface 6a facing up.
  • Printing (printing) on the light guide plate 6 is performed in units of prints in which the horizontal rail 10 is set in one direction (sub-scanning direction) under the control of the printing apparatus main body drive unit.
  • the head carriage 20 including the ink jet recording heads 12, 14, 16, 18 is moved in the main scanning direction perpendicular to the conveying direction of the horizontal rail 10.
  • print data that ejects ink from the nozzles of the recording heads 12 to 18 and is transferred from the computer 4 to the controller of the ink jet printer 2 is stored in the controller. Is printed on the printing surface 6b of the light guide plate 6. Note that printing in the sentence is synonymous with printing.
  • the storage device of the computer 4 stores a print program for controlling the controller of the inkjet printer 2 and performing printing.
  • a horizontal rail 10 is arranged on the table 8 so as to be movable in the sub-scanning direction, and a head carriage 20 is connected to the horizontal rail 10 so as to be movable in the main scanning direction.
  • the head carriage 20 holds a plurality of ink jet recording heads 12, 14, 16, 18 as shown in FIG.
  • Each recording head 12, 14, 16, 18 includes a large number of nozzles that eject ink. As shown in FIG. 7, each head 12, 14, 16, 18 has an ink tank 22 corresponding to each of the white ink supply units A, B, C, D provided with an ink tank disposed in the body of the printer 2. , 24, 26, and 28 via an ink supply means such as a tube.
  • the plurality of recording heads 12, 14, 16, 18 are arranged in parallel so that their print areas overlap in the main scanning direction along the horizontal rail 10.
  • the storage device of the computer 4 stores software (print program) for creating print data of the light reflection pattern, and an ink data table 30 is provided.
  • This data table 30 is used to create light guide plates with various color temperatures by printing a plurality of types of white inks A, B, C, and D individually or in combination on the light guide plate 6. In addition, combinations of color temperatures and inks A, B, C, and D are set in advance. By using this data table 30, light guide plates having various color temperatures can be easily created. It is.
  • white inks A and B indicate two types of inks having different color temperatures with respect to the particle diameter of titanium oxide
  • white ink C has a content of titanium oxide in white ink A.
  • a different white ink is shown, and a white ink D is a white ink having a titanium oxide content different from that of the white ink B.
  • the content of titanium oxide in the white ink is desirably 10% or less, and experimentally it is easy to control the fine gradation brightness change of the light-emitting surface of the light guide plate by lowering the titanium oxide content. It has been confirmed.
  • the printing program for printing control stored in the computer 4 is configured so that the ink data table 30 can be created and corrected.
  • the produced light guide plate 6 is obtained by printing reflection dots or reflection gradation (fine dots such as frosted glass) on the plane portion of the printing surface 6b of the light guide plate such as a transparent acrylic plate. 11, by arranging a light source 40 made of a light emitter such as a cold-cathode tube or an LED in the thickness portion of the upper edge 32 of the rectangular light guide plate 6, the entire plane of the light emitting surface 6 a emits light. It looks like you are.
  • titanium oxide ink prepare white ink with different color temperature depending on the particle size distribution of titanium oxide in the ink, and if the dispersion of the particle size distribution is changed, there will be a difference in reflected light. There is a difference in color temperature. This is because the particle diameter of titanium oxide in the ink is different, so that the intensity of light scattered after printing differs depending on the wavelength of light, and as a result, the color temperature of the scattered light of the printed light guide plate is different.
  • White ink uses titanium oxide as an ink pigment. Titanium oxide particles have the property of reflecting light with a wavelength twice as large as the particle diameter, and as an ideal white ink, the distribution of titanium oxide particle diameter is uniform between 200 nm and 400 nm as shown in FIG. Is to exist. In this case, the color becomes white which uniformly reflects light 400 nm to 800 nm (visible light) having a wavelength twice as large as the particle diameter 200 nm to 400 nm.
  • desired wavelength range of light can be obtained by adding other particles, copper phthalocyanine, or by changing the content ratio of titanium oxide.
  • a plurality of types of white inks having different titanium oxide particle diameter distributions or different titanium oxide content ratios are prepared and used in combination.
  • the printer includes only one type of white ink, and the particle diameter distribution state of titanium oxide in the ink is adjusted in advance to a desired distribution state or oxidized.
  • the ratio of the titanium content may be adjusted and printing may be performed on the light guide plate using the adjusted white ink.
  • the printer has only one type of white ink, and the distribution state of titanium oxide in the ink is adjusted in advance to a desired distribution state, and printing is performed on the light guide plate using the adjusted white ink. May be prepared, and different types of white ink may be used for each printer, and one of them may be designated as necessary to create a light guide plate having a desired color temperature.
  • FIGS. 19 to 21 are distribution image diagrams of the particle diameter of titanium oxide in the ink.
  • the horizontal axis represents the particle diameter, and the vertical axis represents the degree of distribution.
  • FIG. 19 shows an ideal particle size distribution of titanium oxide particles in white ink
  • FIGS. 20 to 21 show an actual particle size distribution of titanium oxide particles in white ink.
  • a small amount of copper phthalocyanine is added to the ink used in this embodiment.
  • the amount of this addition has been experimentally selected so that the color temperature of the ink can be easily controlled by selecting an appropriate amount experimentally.
  • the operator can select the white ink A, B, C, D by hitting the ink selection button 48 displayed on the display 46 of the computer 4 with a mouse or the like.
  • the mixing button 50 by operating the mixing button 50, the white ink can be mixed in a desired combination. It is also possible to specify a plurality of inks such as A and B, A and C, and to specify what ink is to be used in which print portion in correspondence with the created print data. .
  • FIG. 13 shows reflective surface print data 56 created on a computer using print data creation software for creating a reflection pattern of the light guide plate.
  • the print data 56 generated in the rectangular area according to the rectangular shape of the light guide plate is formed so that the print density (density) increases toward the high density setting point set in the rectangular area. Since the reflection pattern is printed on the light guide plate, printing is performed on the whole, and the gradation direction of the print density in the print is shown.
  • FIG. 13 is an example, and the shape and the like are not particularly limited thereto.
  • FIG. 23 shows a three-dimensional image of the print density (print density) of the print data 66.
  • the symbol P indicates a high density set point.
  • the high density setting point is not particularly limited to one point, and may have a certain extent (space) in four directions in FIG.
  • numeral 1 indicates the direction of the light source
  • numerals 1 to 7 indicate that the distance between the light source side edge 60 and the opposite edge 62 facing the print data 56 is divided into seven equal parts.
  • S1, S3 and S5 indicate the scale between the left and right edge portions 64 and 66.
  • the high density setting point P is set near the lower center of the rectangular area, and the part with the high print density is gathered at this point. It is necessary to increase the reflectivity as the distance from the light source increases. This is because there is a part affected by reflection returning from the other peripheral end part (refer to FIG. 10), so even if the print pattern data is created in consideration of that part. good.
  • the print data 56 is created with a gradation pattern.
  • gradation refers to a print density change pattern formed by the gradation pattern generation mode of the print data creation software.
  • the print density can be changed between 0% and 100%.
  • FIG. 14 is an explanatory diagram of the density in the gradation pattern diagram. In FIG. 14, (A) is 0%, (B) is 25%, (C) is 50%, (D) is 75%, and (E). Indicates 100% concentration. Note that FIG. 14 is merely a simplified description. In actual printing, printing is performed with a large number of dots, and therefore, the printing place is designated according to the resolution of the printer, and its range. Printing within an arbitrary range such as 0 to 100% is possible.
  • the first density changing portion forms a gradation pattern from the light source arrangement side edge 60 of the print data 56 in a state where the print density is low with respect to the high density set point set in the print area.
  • An arrow a indicates a state in the first density changing portion where the density increases from a low density state toward the arrow direction, that is, toward the high density setting point.
  • gradation is formed from a state in which the print density is reduced toward the high density set point in the print area within a relatively short range from the edge 62 on the side opposite to the light source arrangement side edge 60. As shown, it is formed by changing it until it becomes the darkest state.
  • An arrow b indicates a state in the second density changing portion where the density increases from a low density state toward the arrow direction, that is, toward the high density setting point. From both the left and right edge portions 64 and 66, the print density is changed from a light state to a darkest state so that a gradation pattern is gradually formed toward a high density set point in the print region within a relatively short range. Thus, the third density changing portion and the fourth density changing portion are formed.
  • An arrow c indicates a state in which the density is increased from a light state in the direction of the arrow in the third density changing part
  • an arrow d indicates a state in which the density is increased in the direction of the arrow from a light state in the fourth density changing part. .
  • the print data 56 is designed with reference to the ideal reference luminance distribution pattern diagram 57 (see FIG. 3) of the light guide plate prepared in advance.
  • area a has a luminance of 1000 to 1500 (unit candela per square meter)
  • area b has a luminance of 1500 to 2500
  • area c has a luminance of 2500 to 3500
  • area d has a luminance of 3500 to 4000
  • area e Has a luminance of 4500-, and the luminance is displayed in color.
  • Each area corresponds to the light emitting surface 6a of the light guide plate.
  • FIG. 16 shows a luminance distribution pattern diagram 39 obtained from measured values of illumination emitted when an LED or the like is turned on using the prepared light guide plate in this embodiment, and is a reference luminance distribution pattern diagram. 57.
  • area a has a luminance of 1000 to 1500 (unit candela per square meter or less)
  • area b has a luminance of 1500 to 2500
  • area c has a luminance of 2500 to 3500
  • area d has a luminance of 3500 to 4000
  • area e has an area e of
  • Each area of luminance 4500 is shown, and each area is displayed in a color corresponding to the luminance. Further, each area corresponds to the light emitting surface 6a of the light guide plate, and reference numerals 32, 34, and 36 in FIG. 16 indicate portions corresponding to the edges 32, 34, and 36 of the light guide plate with the same numbers, and the correspondence relationship. Is shown.
  • FIG. 22 is a graph showing the relationship between dot density and luminance.
  • X indicates the light source direction
  • each horizontal axis indicates the distance from the light source.
  • the high density setting point is approximately in the middle between the left and right edges, and when the distance between the light source arrangement side edge 60 and the opposite edge 62 is 1, the distance from the edge 60 exceeds 1/2. Is set at an arbitrary position less than (that is, in front of the edge 62).
  • a peak of a high-density portion appears at a position about 6/7 from the edge 60.
  • the position depends on the material of the light guide plate used, the thickness, the type of ink, the brightness of the light source, and the like. For example, when the thickness of the light guide plate is reduced, a better result may be obtained by bringing the edge 62 closer to the center, such as 1/4 or 1/3.
  • the magnitude of the change in print density may be changed according to the conditions.
  • the print density is changed toward the leading end portion of the high density portion, that is, the high density setting point P, but the portion does not necessarily have to be in the leading end state as shown in FIG. You may make it change toward the above flat area
  • the high density setting point P is approximately at the center between the left and right edges and between the edge 60 and the opposite edge 62. If the distance between them is 1, it is desirable to set the distance from the edge 62 to approximately 1 ⁇ 2.
  • a liquid crystal display device such as a television or a liquid crystal monitor
  • the print data is transferred from the computer 4 to the printer 2, and after the data is processed by the printer 2, the horizontal rail 10 is conveyed and conveyed in the print width unit set in the sub-scanning direction, The head carriage 20 is driven in the main scanning direction, and printing is performed on the light guide plate 6 with white ink under the selected printing condition.
  • the thickness H of the ink dots 54 is about 0.5 ⁇ m, which is much thinner than screen printing (about 100 ⁇ m).
  • the light guide plate 6 brighter than the conventional one can be obtained by the synergistic effect of the light reflected from the white ink dots and the light transmitted through the ink and reflected from the reflection plate 72.
  • the content of titanium oxide is adjusted so that the brightness can be easily controlled by fine gradation printing.
  • the amount of reflection is changed accordingly, so that it is possible to cope with fine changes, thereby facilitating control of the amount of reflected light and the amount of scattering.
  • the content of titanium oxide in the white ink is 10% or less.
  • white ink with a content of about 1% is also prepared for finer control.
  • the brightness can be easily controlled by fine gradation, and if the dot diameter of about 100 ⁇ m necessary for filling 360 dpi is used, the printing speed can be increased.
  • printing may be performed with a dot diameter of about 50 ⁇ m necessary for filling 720 dpi.
  • the ink dot diameter is elliptical. Therefore, the ink dot diameter can be filled even in a narrow width direction at the resolution used.
  • Printing may be performed by combining the dot diameters.
  • the luminance data measured by the camera 74 (luminance is displayed in color) is displayed or printed out on the screen of the computer 4 as the luminance distribution pattern diagram 39, and compared with the ideal reference luminance distribution pattern diagram 57 as a reference. If the brightness distribution of the printed light guide plate 6 matches or approximates the ideal brightness distribution pattern, the print data creation work on the computer is completed. If satisfactory results are not obtained at this time, this operation is repeated until the print data is corrected and an ideal luminance distribution pattern is obtained.
  • the luminance distribution pattern of the luminance distribution pattern diagram 39 shown in FIG. 16 based on the luminance data measured by the camera 74 is slightly lower in the portion where the luminance is higher than the reference luminance distribution pattern diagram 57 referred to at the time of printing.
  • the print density of the corresponding portion of the print data shown in FIG. 13 is changed, or the position of the dark portion is corrected slightly upward. It is also conceivable to change the type of ink used at that position and the ink dot diameter used.
  • the light source 40 is arranged on one edge 32 of the light guide plate 6, but as shown in FIG. 12, the light sources 40, 40 may be arranged on both edges 32, 34.
  • the luminance distribution also changes, so a print pattern corresponding to the light distribution is required, and a portion having a high print density moves in the center direction in terms of data. Even if the luminance of the light source varies, a desired luminance distribution can be obtained by correcting the portion with the print pattern, and the difference between the light sources at both ends can be dealt with.
  • the medium is fixed and the apparatus in which the inkjet head moves is described.
  • the present invention is not limited to this, and printing is performed using an apparatus or a line head that performs printing by moving the medium. Any device that can perform printing by an ink jet method, such as a device that performs printing.
  • the inkjet printer can use a plurality of resolutions depending on the product specifications (for example, select and use a necessary print mode such as 180 to 1440 dpi), the resolution may be selected as necessary.
  • the process of creating the light guide plate will be described.
  • an image (print) creation software is used to create a print image pattern (print data) 56.
  • the reference luminance distribution pattern diagram 57 is created based on experimental data in consideration of human visual characteristics so that an optimal visual effect can be obtained when watching a television screen. It has high brightness and other unique brightness distribution patterns. In this luminance distribution pattern diagram, the magnitude of luminance is indicated by color (color).
  • Print data 56 is displayed in area A of print image pattern 56 creation screen 4a and reference luminance distribution pattern diagram 57 is displayed along with print data 56 in area B, or print pattern 56 and reference luminance pattern are displayed in area D.
  • FIG. 57 is superimposed and displayed, and the operator refers to the reference luminance distribution pattern FIG. 57 displayed on this screen and uses the gradation mode so that the corresponding density pattern is formed.
  • An image pattern 56, that is, print data 56 is created (step 1). If the computer used to create the print data is not the computer 4 connected to the inkjet printer 2, the created print data is transferred to the computer 4 and stored in the computer 4.
  • the printed reference luminance distribution pattern diagram 57 may be simply referred to without displaying the reference luminance distribution pattern diagram 57 on the screen.
  • the image pattern 56 is converted into an ink jet discharge format by RIP (Raster Image Processor) (step 2).
  • RIP Raster Image Processor
  • printing is performed on the light guide plate 6 by the inkjet printer 2 (step 3).
  • the printed light guide plate 6 is mounted on the LED lighting stand 72, and the brightness distribution of the light guide plate 6 is measured by photographing with the camera 74 (step 4).
  • the luminance distribution pattern diagram 39 of the light guide plate is output on the computer screen based on the output data of the camera 74 and printed (step 5).
  • the luminance distribution pattern diagram 39 of the printed light guide plate 6 and the reference luminance distribution pattern diagram 57 are compared on the computer screen or the two printed pattern diagrams 57 and 38 are visually compared (step). 6) It is determined whether or not the printed light guide plate 6 has a satisfactory luminance distribution pattern (step 7). If the determination result is unacceptable, the process returns to step 1 and the print data 56 is corrected. At the time of this correction work, as shown in FIG. 2, the operator displays the print data 56 in the area A of the computer screen 4a and arranges it along with the reference luminance distribution pattern diagram 57 in the areas B and C, respectively.
  • the measured luminance distribution pattern diagram 39 is displayed, or any combination of the print data 56, the reference luminance distribution pattern diagram 57, and the measured luminance distribution pattern diagram 39 is superimposed on the area D and displayed. If the determination result is acceptable, a prototype of the light guide plate is submitted to the requester (step 8). If the requester's evaluation is acceptable, the system shifts to the light guide plate mass production system. Return to.
  • Inkjet printer 4 Computer 6 Light guide plate 6a Light emitting surface 6b Printing surface 8 Table 10 Horizontal rail 12 Recording head 14 Recording head 16 Recording head 18 Recording head 20 Head carriage 22 Ink tank 24 Ink tank 26 Ink tank 28 Ink tank 30 Ink data table 32 Edge 34 Edge 36 Edge 38 Edge 39 Luminance distribution pattern diagram 40 Light source 42 Ink 44 Reflector 46 Display 48 Ink selection button 50 Mix button 52 Print rate button 54 Ink dot 56 Print data (print image pattern) 57 Reference luminance distribution pattern 58 Core portion 60 Edge portion 62 Edge portion 64 Edge portion 66 Edge portion 68 Prism sheet 70 Diffusion plate 72 LED lighting stand 74 Camera

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

La présente invention a pour but de proposer une plaque de guidage de lumière pour une télévision à cristaux liquides, dans laquelle on peut obtenir des effets visuels favorables. Il est prévu un diagramme de modèle de distribution de luminance destiné à une plaque de guidage de lumière pour une télévision à cristaux liquides représentant une référence qui est créé à l'avance, et un logiciel d'image qui est utilisé afin de créer des données d'impression pour la réflexion de la lumière tout en se référant au diagramme de modèle de distribution de luminance de référence. Les données d'impression créées sont transférées à une imprimante à jet d'encre ; les données d'impression sont converties à un format de décharge à jet d'encre utilisant un RIP ; une impression réfléchissante pour faire en sorte que la réflexion irrégulière de la lumière dirigée à partir de la source de lumière vers l'intérieur de la plaque de guidage de lumière est appliquée à la surface d'impression de la plaque de guidage de lumière à l'aide d'une imprimante à jet d'encre ; et de cette manière la plaque de guidage de lumière pour une télévision à cristaux liquides est créée.
PCT/JP2012/082523 2012-02-16 2012-12-14 Procédé et dispositif de création de plaque de guidage de lumière pour télévision à cristaux liquides WO2013121671A1 (fr)

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JP2012-031348 2012-02-16
JP2012031348A JP2013167780A (ja) 2012-02-16 2012-02-16 液晶ｔｖ用導光板作成方法及び装置

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CN104459868A (zh) * 2013-09-24 2015-03-25 陈蕾 导光板及其制备方法、背光源led模组、显示器和面板灯

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KR20160121724A (ko) * 2015-04-10 2016-10-20 삼성디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 표시 장치

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