WO2018168102A1 - 表示装置および遊技機 - Google Patents

表示装置および遊技機 Download PDF

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Publication number
WO2018168102A1
WO2018168102A1 PCT/JP2017/042641 JP2017042641W WO2018168102A1 WO 2018168102 A1 WO2018168102 A1 WO 2018168102A1 JP 2017042641 W JP2017042641 W JP 2017042641W WO 2018168102 A1 WO2018168102 A1 WO 2018168102A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
light emitting
display device
gradation
emitting structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/042641
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
佳彦 ▲高▼木
潤 岸本
高大 森地
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Corp
Original Assignee
Omron Corp
Omron Tateisi Electronics Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Omron Corp, Omron Tateisi Electronics Co filed Critical Omron Corp
Priority to US16/489,860 priority Critical patent/US11009648B2/en
Priority to CN201780085907.4A priority patent/CN110268458B/zh
Publication of WO2018168102A1 publication Critical patent/WO2018168102A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F7/00—Indoor games using small moving playing bodies, e.g. balls, discs or blocks
    • A63F7/02—Indoor games using small moving playing bodies, e.g. balls, discs or blocks using falling playing bodies or playing bodies running on an inclined surface, e.g. pinball games
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
    • A63F13/25—Output arrangements for video game devices

Definitions

  • the present disclosure relates to a display device including a light source and a light guide plate, and a gaming machine including the display device.
  • Patent Document 1 discloses a technique for enhancing the gradation of an outline portion of an image displayed on a light guide plate.
  • Japanese Patent Application Laid-Open No. 2004-228561 describes gradation expression by changing the directivity of light emitted from a light guide plate by continuously changing the direction of a pattern formed on the light guide plate to express an image. Techniques to do this are disclosed.
  • Japanese Patent Publication Japanese Patent Laid-Open No. 2015-118128 (published on June 25, 2015)” Japanese Patent Publication “Japanese Patent Laid-Open No. 2015-088489” (published May 7, 2015)
  • Patent Document 1 is not effective even when applied to image representation in which gradation such as gradation changes continuously.
  • Patent Document 2 is a technique for continuous gradation change, the effective range of application is limited.
  • An object of one embodiment of the present invention is to realize a display device or the like capable of more natural image expression.
  • a display device includes a light source, a light guide plate that guides light incident from the light source, and emits a part of the light from a light exit surface.
  • the light guide plate is provided with a pixel region including one or more light emitting structures that change the direction of incident light to be emitted from the light emitting surface, and the amount of light emitted from each of the pixel regions is changed.
  • a predetermined image having gradation is displayed, and an emitted light amount of the pixel area displaying a predetermined range of gradations is a first light amount value or a second light amount value larger than the first light amount value. It is set randomly.
  • FIG. 2 is a plan view illustrating an outline of a configuration of a display device according to Embodiment 1.
  • FIG. It is a figure which shows an example of the shape and arrangement
  • FIGS. 8A to 8C are diagrams showing changes in the pitch of the pixel region.
  • D) of FIG. 8 is a figure which shows the light-guide plate which provided the light-projection structure area
  • A) of FIG. 10 is a figure explaining the directivity relationship of the reflected light with respect to the light-projection structure part shown to (c) of FIG.
  • FIGS. 10B and 10C are diagrams showing an arrangement example of the light emitting structure shown in FIG. 10A on the light guide plate.
  • FIG. 1 is a plan view showing an outline of the configuration of the display device 1 according to the present embodiment.
  • the display device 1 includes a light source control unit 2, one or more light sources 3, and a light guide plate 4.
  • the light source control unit 2 controls the light emission of the light source 3.
  • One or more light sources 3 form a light source group 31.
  • Each light source 3 emits light according to the control of the light source control unit 2.
  • the light guide plate 4 guides light incident from the light source 3 and emits at least a part of the light from the light exit surface 41.
  • a light emitting structure portion is formed on the light guide plate 4 on the opposite surface (hereinafter referred to as the back surface) of the light emitting surface 41.
  • FIG. 2 is a diagram illustrating an example of the shape and arrangement of the light emitting structure 43 formed on the light guide plate 4.
  • a plurality of convex light emitting structures 43 are formed on the back surface 42 of the light guide plate 4 from the back surface 42 toward the inside of the light guide plate 4.
  • the light emitting structure 43 is formed by, for example, recessing the back surface of the light guide plate 4 by laser processing, or forming a master mold and transferring and molding it to the light guide plate 4.
  • the light emitting structure 43 changes the direction of light incident on the light guide plate 4 from the light source 3 and emits it from the light emitting surface 41.
  • the light guide plate 4 is formed with a plurality of convex light emitting structures 43 that extend from the back surface 42 toward the inside of the light guide plate 4.
  • the plurality of light emitting structures 43 are configured such that the direction of the maximum intensity of the emitted light is the same in the direction of the arrow A1.
  • the light (arrow A2) incident on the light guide plate 4 is light so that the direction of the maximum intensity of the light emitted by the plurality of light emitting structures 43 is the same as the direction of the arrow A1.
  • the direction of is changed.
  • the light guide plate 4 emits light whose maximum intensity is aligned in the direction of the arrow A1.
  • Incident light from the light source 3 propagates through the light guide plate 4 while totally reflecting inside the light guide plate 4, and is reflected in a direction of exiting from the light exit surface 41 when hitting the light exit structure 43.
  • the light emitting structure 43 is formed at such a position and number that a predetermined image can be seen by reflected light from the light emitting structure 43 when the user views the light emitting surface 41 of the light guide plate 4.
  • the setting of the formation position and the number of the light emitting structure portions 43 is referred to as “pattern”.
  • the light guide plate 4 can display an image corresponding to the pattern of the light emission structure 43 on the light emission surface 41.
  • FIG. 3 is a diagram illustrating an example of an image (hereinafter referred to as a display image) displayed on the light guide plate 4.
  • the display image is a predetermined image having gradation.
  • the light guide plate 4 emits light of a light amount corresponding to a gradation value (for example, 0 to 255) set for each pixel region of the display image, thereby expressing the shadow of the display image.
  • a gradation value for example, 0 to 255
  • FIG. 4 is a view showing an example of the shape of the light emitting structure 43.
  • the light emitting structure 43 includes optical surfaces D1 and D2 that change the direction of incident light.
  • a first direction perpendicular to the direction of light incident from the light source 3 when viewed from the light emitting surface 41 side is a length L
  • a second direction parallel to the direction is a width W.
  • the length L is preferably about 0.02 mm to 0.2 mm
  • the width W is about 0.01 mm to 0.02 mm.
  • the width W and length L of the light emitting structure 43 particularly, changing the length L.
  • at least one of the length L and the width W of the light emitting structure 43 arranged in a predetermined pattern is made different depending on the light emitting structure 43. Adjust the light intensity.
  • the light emitting structure 43 when the shape of the light emitting structure 43 is formed by moving the cutting tool in the direction of the length L and cutting, the amount of movement of the cutting tool in the length L direction during cutting is controlled.
  • the length of the optical surface in the second direction can be set. Therefore, the light emitting structure 43 can be manufactured by relatively simple control.
  • the width W can be controlled by controlling the amount of pushing when the cutting tool is cut.
  • the length of the optical surface in the direction can be set. Therefore, the light emitting structure can be manufactured with relatively simple control.
  • FIG. 5 is a graph showing an example of the relationship between the gradation and luminance of the pixel region.
  • the horizontal axis represents the ratio with respect to the maximum value of the gradation (for example, 255), and the vertical axis represents the luminance of the pixel area.
  • the number of the light emitting structure portions 43 included in each pixel region is constant.
  • the gradation value originally set in the pixel and the luminance are directly proportional.
  • the manufacturing accuracy of the light guide plate 4 there is a limit to the manufacturing accuracy of the light guide plate 4, and it is impossible to completely correspond to the gradation change and the emitted light amount change as in f1.
  • the light emitting structure is a fine structure and there is a limit to the accuracy of molding by laser or mold formation.
  • the manufacturing accuracy is particularly lowered.
  • the size of the light emitting structure 43 becomes smaller as the gradation value becomes smaller.
  • the light emitting structure 43 having a size with a length L of less than 0.02 mm or a width W of less than 0.01 mm has a stable accuracy. It is difficult to mold.
  • the light guide plate 4 has a first light amount value or a second light amount value that is larger than the first light amount value in a pixel area that displays a predetermined range of gradations.
  • the light emitting structure 43 is formed so as to be set at random.
  • the light guide plate 4 divides the entire gradation range of the display image into a plurality of partial gradation ranges, and the first light amount value and the second light amount value are set for each partial gradation range.
  • the light emitting structure 43 is formed.
  • the division method and the number of divisions of the partial gradation range are not particularly limited, but are desirably determined according to the manufacturing accuracy limit described above. For example, when the transfer rate at a gradation value of 20% or less of the maximum value is particularly low, the range of all gradations may be divided into partial gradation ranges of 5 or less. Thereby, it becomes possible to make the size of the smallest light emission structure 43 43 or more.
  • the range of all gradations may be divided into partial gradation ranges of 10 or less. Thereby, it becomes possible to make the size of the smallest light emission structure part 43 10% or more. Accordingly, it is possible to provide the light guide plate 4 provided with the light emitting structure 43 with high accuracy and stability.
  • the gradation value is divided into five partial gradation ranges of less than 20%, 20% or more and less than 40%, 40% or more and less than 60%, 60% or more and less than 80%, and 80% or more. Show.
  • the light amount value of each pixel is randomly set to one of the first light amount value (n1 to n5) or the second light amount value (m1 to m5) in the partial gradation range including the gradation value of the pixel.
  • the light emitting structure 43 is pattern-formed so that the light amount value set as described above can be obtained for each pixel.
  • the 2nd light quantity value of the highest partial gradation range it is desirable for the 2nd light quantity value of the highest partial gradation range to be 3 times or more of the 2nd light quantity value of the lowest partial gradation range. As a result, the difference in the light amount value between the highest partial gradation range and the lowest partial gradation range can be increased, so that display of an image having sufficient gradation expression can be realized.
  • the difference between the second light amount value of a certain partial gradation range and the second light amount value of the partial gradation opposite value that is one step lower than the partial gradation range is defined as a light amount difference, all the gradation ranges
  • the difference in the light quantity value at may not be constant.
  • FIG. 6 is a graph showing another example of the relationship between the gradation and luminance of the pixel area.
  • the partial gradation range is divided into three, and the second light quantity values n6 and n7 and n7 and n8 have different light quantity value differences.
  • the second light quantity values n6 and n7 and n7 and n8 have different light quantity value differences.
  • the gradation expression in the low gradation range is made more delicate by increasing the light amount value difference as the partial gradation range becomes higher.
  • FIG. 7 is a diagram comparing a case where an image is realized in the light guide plate 4 according to the present embodiment and a case where the image is realized in a conventional light guide plate.
  • a region R ⁇ b> 1 in the drawing shows a part of an image when the image is realized by the light guide plate 4.
  • Region R2 indicates the same region as R1 when the same image is realized by a conventional light guide plate.
  • the gradation change is not continuous.
  • the change in gradation and the change in the amount of emitted light cannot be completely matched due to the limit of the manufacturing accuracy of the light guide plate described above. Therefore, as shown in the region R2, in the conventional light guide plate, the change in the amount of emitted light with respect to the change in gradation becomes stepwise, so the gradation boundary region is conspicuous and the gradation becomes unnatural.
  • the pattern formation of the light emitting structure 43 in the light guide plate 4 according to the present embodiment is sufficiently possible even if the manufacturing accuracy is relatively low.
  • an emitted light quantity is randomly set so that it may become a 1st light quantity value or a 2nd light quantity value for every partial gradation range. Therefore, as shown in the region R1, the boundary between gradations can be blurred, so that an image expression such as gradation can be made more natural.
  • the light guide plate 4 may change the amount of light emitted from each pixel region by varying the number of light emitting structures 43 included in each pixel region.
  • the number of the light emitting structure portions 43 in each pixel region is referred to as “pitch”.
  • FIG. 8 are diagrams showing changes in the pitch of the pixel region.
  • the pitch as shown in the drawing, the amount of emitted light in the pixel region can be changed, so that the amount of emitted light can be changed without changing the shape of the light emitting structure 43. Therefore, when manufacturing the light emitting structure 43, it is only necessary to form the light emitting structure 43 having the same shape under the same control and change the number of the light emitting structures 43 for each pixel region. Therefore, the manufacturing control can be simplified depending on the manufacturing method.
  • the light guide plate 4 extends in the first direction so as to straddle a plurality of pixel regions arranged in a first direction perpendicular to the direction of light incident from the light source 3 (for example, the length L direction in the example of FIG. 4).
  • a plurality of light emitting structure regions to be extended may be provided in parallel.
  • the number of the light emitting structure portions 43 included in the pixel region may be varied depending on whether or not the light emitting structure portion 43 is provided in the light emitting structure region.
  • FIG. 8 is a view showing the light guide plate 4 provided with the light emitting structure region 44.
  • Each of the pixel regions P1 to P5 is provided with a groove-like light emitting structure region 44.
  • a dotted line portion of the light emission structure region 44 is a portion where the light emission structure portion 43 is not provided, and a solid line portion is a portion where the light emission structure portion 43 is provided.
  • the light emitting structure 43 is provided in the pixel regions P1 and P4, in the pixel region P2, in the pixel region P2, and in the pixel regions P3 and P5.
  • the light emitting structure portion is controlled by cutting only at a position where the light emitting structure portion is to be provided.
  • a shape can be formed. Therefore, the light emitting structure can be manufactured with relatively simple control.
  • the light emitting structure area 44 may be provided in a part of the light guide plate 4 instead of all the pixel areas arranged in the first direction.
  • the light emitting structure 43 formed on the light guide plate 4 may have a shape other than the shape shown in FIGS. 2 and 3.
  • the number of the light emitting structures 43 included in each of the pixel areas of the light guide plate 4 may be the same, and the amount of light emitted from the pixel areas may be changed by changing the shape of the light emitting structures 43.
  • 9 (a) to 9 (e) are diagrams showing another example of the shape of the light emitting structure 43.
  • FIG. Thus, if the shape of the light emitting structure 43 is different, the amount of light emitted from the light emitting structure 43 is also different. Therefore, it is possible to change the amount of light emitted from each pixel region (that is, the luminance of each pixel region) while keeping the same number of light emitting structure portions 43 in each pixel region of the display image.
  • the light guide plate 4 in this way, for example, when the light guide plate 4 is manufactured, the light emitting structure portions 43 can be formed at equal intervals. Therefore, depending on the manufacturing method, control during manufacturing can be simplified.
  • FIG. 10 is a figure explaining the directivity relationship of the reflected light with respect to the light-projection structure part 43 shown in (c) of FIG.
  • the diffusion angle of reflected light differs between the curved surface and the flat surface.
  • the outgoing light from the reflecting surface S1 shown in FIG. 10A is diffused at a wider angle than the outgoing light from the reflecting surface S2. Therefore, the directivity of the outgoing light from the reflective surface S1 is lower than the directivity of the outgoing light from the reflective surface S2.
  • FIGS. 10B and 10C are diagrams showing an arrangement example of the light emitting structure 43 shown in FIG. 10A on the light guide plate 4.
  • the directivity of the emitted light is different between the reflecting surfaces S1 and S2.
  • the light guide plate 4 in which the light emitting structure 43 is arranged in the same direction if the light source 3 is provided on both sides in order to increase the luminance, the light is emitted from both sides.
  • the degree of diffusion of the reflected light is different between the side where the reflecting surface S1 is arranged and the side where the reflecting surface S2 is arranged. Therefore, for example, when the user looks at the light exit surface 41 of the light guide plate 4, the angle at which the display image can be viewed becomes narrow.
  • the degree of diffusion of the reflected light is determined by the reflection surface S1.
  • the side where the reflective surfaces S2 are arranged is substantially equal to the side where the reflective surfaces are arranged. Therefore, when the user looks at the light exit surface 41 of the light guide plate 4, the angle at which the display image can be seen becomes wide.
  • the viewing angle and the luminance of the display device 1 can be compatible.
  • the display device 1 according to each of the above embodiments may be provided in a gaming machine.
  • Embodiment 4 of the present invention will be described below.
  • the gaming machine according to the present embodiment includes a display device 1.
  • the gaming machine controls the light source control unit 2 of the display device 1 according to the progress of the game, thereby causing the light guide plate 4 to display an image.
  • the display device 1 is desirably arranged in front of the eyes of the user who operates the gaming machine.
  • the kind of game machine is not specifically limited, For example, a pachinko machine and a slot machine may be sufficient.
  • a display device includes a light source, a light guide plate that guides light incident from the light source, and emits a part of the light from a light exit surface.
  • the light guide plate is provided with a pixel region including one or more light emitting structures that change the direction of incident light to be emitted from the light emitting surface, and the amount of light emitted from each of the pixel regions is changed.
  • a predetermined image having gradation is displayed, and an emitted light amount of the pixel area displaying a predetermined range of gradations is a first light amount value or a second light amount value larger than the first light amount value. It is set randomly.
  • a gaming machine includes the display device, and display is performed on the display device as the game progresses.
  • the gradation in the predetermined range is displayed with the emitted light quantity of the first light quantity value or the second light quantity value set at random.
  • the gradation change and the output light amount change are completely supported by the limit of manufacturing accuracy. I can't let you. In this case, the change in the amount of emitted light with respect to the gradation change becomes stepwise, and the image expression like gradation becomes unnatural.
  • the structure as described above can be sufficiently manufactured even if the manufacturing accuracy is relatively low.
  • the gradation in the predetermined range is displayed with the emitted light quantity of the first light quantity value or the second light quantity value set at random, it is possible to suppress the change in the emitted light quantity with respect to the gradation change in steps. Can do. Therefore, image expression such as gradation can be made more natural.
  • the display device divides all gradation ranges in the predetermined image into a plurality of partial gradation ranges, and the first light amount value and the second light amount value are set for each partial gradation range. It may be.
  • the amount of emitted light is adjusted as described above for each partial gradation range for all gradations. Therefore, it is possible to realize a natural image expression with every gradation.
  • the number of the partial gradation ranges may be 10 or less.
  • the light guide plate is manufactured, for example, by making a master mold and transfer molding it.
  • the light emitting structure is a fine structure, and there is a limit to the shape accuracy depending on the accuracy of mold formation and the accuracy of transfer molding. For example, when the size of the light emitting structure that can emit the maximum amount of emitted light is 100%, and the number of partial gradation ranges is larger than 10, the size of the smallest light emitting structure is less than 10%. May need to be done. Here, even if mold formation and transfer molding with the highest accuracy are performed, it is difficult to accurately manufacture a light emitting structure having a size of less than 10%.
  • the size of the smallest light emitting structure can be made 10% or more. Therefore, it is possible to provide a display device provided with a light emitting structure having a certain degree of accuracy.
  • the number of the partial gradation ranges may be 5 or less.
  • the size of the light emitting structure that can emit the maximum amount of emitted light is 100%
  • the size of the smallest light emitting structure is less than 20%
  • the light emitting structure is manufactured.
  • Accuracy stability is low. Therefore, according to the above configuration, since the number of partial gradation ranges is 5 or less, it is possible to provide a display device provided with a light emitting structure with high accuracy and stability.
  • the second light amount value of the highest partial gradation range may be three times or more the second light amount value of the lowest partial gradation range.
  • the difference in the light amount value between the highest partial gradation range and the lowest partial gradation range can be increased, so that display of an image having sufficient gradation representation can be realized.
  • the light quantity value difference in the gradation range may not be constant.
  • the light quantity value difference is not constant, more natural gradation expression can be realized.
  • the gradation expression in the low gradation range is made more delicate by increasing the light amount value difference as the partial gradation range becomes higher.
  • the number of the light emitting structure portions included in each of the pixel regions may be the same, and the amount of light emitted from the pixel regions may be changed by changing the shape of the light emitting structure portion. .
  • the light emitting structure portions included in each pixel region since the number of the light emitting structure portions included in each pixel region is the same, the light emitting structure portions can be formed at equal intervals when manufacturing the light guide plate, for example. Therefore, depending on the manufacturing method, it is possible to simplify the control during manufacturing.
  • the light emitting structure includes an optical surface that changes a direction of incident light, and when viewed from the light emitting surface side, the light emitting structure is in a first direction perpendicular to the direction of light incident from the light source.
  • the amount of light emitted from the pixel area may be changed by changing the length of the optical surface.
  • the light emitting structure when the shape of the light emitting structure is formed by moving the cutting tool in the first direction and cutting, the amount of movement of the cutting tool in the first direction during cutting is controlled.
  • the length of the optical surface in the second direction can be set. Therefore, the light emitting structure can be manufactured with relatively simple control.
  • the light emitting structure includes an optical surface that changes a direction of incident light, and when viewed from the light emitting surface side, the light emitting structure is in a second direction parallel to the direction of light incident from the light source.
  • the amount of light emitted from the pixel area may be changed by changing the length of the optical surface.
  • the first amount is controlled by controlling the amount of pushing of the cutting tool during cutting.
  • the length of the optical surface in two directions can be set. Therefore, the light emitting structure can be manufactured with relatively simple control.
  • the display device may change the amount of light emitted from the pixel region by changing the number of the light emitting structures included in the pixel region.
  • a plurality of light emitting structure regions extending in the first direction are provided in parallel so as to straddle the plurality of pixel regions arranged in a first direction perpendicular to the direction of light incident from the light source.
  • the number of the light emitting structure portions included in the pixel region may be varied depending on whether or not the light emitting structure portion is provided in the light emitting structure region.
  • the light emitting structure portion is controlled by cutting only at a position where the light emitting structure portion is to be provided.
  • a shape can be formed. Therefore, the light emitting structure can be manufactured with relatively simple control.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Pinball Game Machines (AREA)
PCT/JP2017/042641 2017-03-14 2017-11-28 表示装置および遊技機 Ceased WO2018168102A1 (ja)

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Application Number Priority Date Filing Date Title
US16/489,860 US11009648B2 (en) 2017-03-14 2017-11-28 Display device and game machine
CN201780085907.4A CN110268458B (zh) 2017-03-14 2017-11-28 显示装置及游戏机

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JP2017-049219 2017-03-14
JP2017049219A JP6500926B2 (ja) 2017-03-14 2017-03-14 表示装置および遊技機

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Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH11231797A (ja) * 1998-02-10 1999-08-27 Omron Corp バックライト装置用導光板、バックライト装置およびこのバックライト装置を用いた表示装置
JP2015118128A (ja) * 2013-12-16 2015-06-25 オムロン株式会社 導光体、発光装置および遊技機
JP2016122171A (ja) * 2014-12-25 2016-07-07 オムロン株式会社 導光板、表示装置及び遊技機
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