WO2010087106A1 - Light emitting display panel - Google Patents

Light emitting display panel Download PDF

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Publication number
WO2010087106A1
WO2010087106A1 PCT/JP2010/000105 JP2010000105W WO2010087106A1 WO 2010087106 A1 WO2010087106 A1 WO 2010087106A1 JP 2010000105 W JP2010000105 W JP 2010000105W WO 2010087106 A1 WO2010087106 A1 WO 2010087106A1
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WO
WIPO (PCT)
Prior art keywords
color
light
region
area
display
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Application number
PCT/JP2010/000105
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French (fr)
Japanese (ja)
Inventor
渡津裕次
高木孝之
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日本写真印刷株式会社
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Application filed by 日本写真印刷株式会社 filed Critical 日本写真印刷株式会社
Publication of WO2010087106A1 publication Critical patent/WO2010087106A1/en

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/12—Signs, boards or panels, illuminated from behind the insignia using a transparent mirror or other light reflecting surface transparent to transmitted light whereby a sign, symbol, picture or other is visible only when illuminated
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia

Definitions

  • the present invention is used for household electrical devices, acoustic devices, small electronic devices such as mobile phones, indicators for automobiles, etc., and a light-emitting display panel that displays patterns such as display characters, display scales, and marks. It is about.
  • the inventors of the present invention have provided a light emitting display panel in which two or more light sources having different emission colors and two or more different light emitting display patterns made of materials having different wavelengths that can be transmitted among the light from the light source are formed on the display layer.
  • a light-emitting display panel that can switch the light-emitting display pattern by switching the light-emitting color has been proposed (see, for example, Patent Document 1).
  • FIG. 8 is a schematic plan view showing an example of a display layer of a conventional light emitting display panel.
  • FIG. 8A is a schematic plan view of the display layer
  • FIG. 8B is a partially enlarged view thereof.
  • the display layer 110 includes a light emitting display pattern 111r that transmits light from a red light source and a light emitting display pattern 111b that transmits light from a blue light source, and the light emitting display pattern 111r and the light emitting display pattern 111b overlap in an overlapping region 112. ing.
  • FIG. 8C illustrates characters displayed when the red light source is turned on
  • FIG. 8D illustrates characters displayed when the blue light source is turned on.
  • the display layer of the light emitting display panel described above is usually formed on a transparent substrate by printing such as offset printing.
  • bubbles may be generated in the ink during printing, or dust may be entrapped, resulting in pinholes in the display layer.
  • the emitted color is transmitted as it is. For example, a pinhole in a region that should transmit blue light red when a red light source emits light, and the light emission display pattern changes. For this reason, the quality of the light emitting display panel is lowered.
  • the light-emitting display panel according to the present invention visually observes transmitted light.
  • the transmitted light display layer if the diameter of the pinhole is about 40 ⁇ m or more, the transmitted light through the pinhole is visually observed.
  • a normal printed matter typically a printed matter on paper
  • the presence of the pinhole is not visually observed if the diameter of the pinhole is less than about 100 ⁇ m.
  • the transmitted light display layer even a small pinhole that can be ignored in a normal printed matter is visually observed.
  • the same area is applied to the A color transmission region and the same area is applied to the B color transmission region.
  • the coating area is necessary to make the coating area one area smaller. This makes it impossible to take a countermeasure against pinholes at the edge of the A color transmission region, the edge of the B color transmission region, and the like.
  • ink when ink is piled up, ink may peel off due to insufficient drying.
  • the problem to be solved is in a light-emitting display panel having a transmissive display layer that individually transmits two colors, and prevents light passing from a pinhole.
  • a light-emitting display panel includes: A display layer (6) having a plurality of light emitting display patterns; The light irradiating means is arranged on the back side of the display layer and irradiates the display layer with light, and the light irradiating means emits light of two colors A and B which are different from each other. 7)
  • the display layer has a single color display pattern formed of a material that can transmit light of a single color in the two colors, for each single color.
  • the display layer includes a first display member (10) and a second display member (20),
  • the first display member includes an adjacent first A color transmission region (12) and a first multicolor transmission region (14) provided on the first base material
  • the second display member includes an adjacent second A color transmission region (22) and a second multicolor transmission region (24) provided on the second base material
  • the first A color transmission area is composed of a first A color multicolor covering area (121) and a first A color residual area (122).
  • the second multicolor transmission area (24) overlaps the entire area of the first multicolor transmission area (14), and the second multicolor transmission area (24) overlaps the first A color multicolor coverage area (121).
  • the second A color transmission area (22) overlaps the entire area of the first A color residual area (122).
  • the first display member and the second display member are stacked.
  • a light-emitting display panel includes: In the state where the first display member and the second display member are arranged in a stacked manner, The width (arrow 123) of the first A-color multicolor covered region (121) may be 0.03 mm or more and 0.8 mm or less.
  • the pinhole existing in the first A-color multicolor covered region is close to the contour line of the first multicolor transmissive region.
  • a light-emitting display panel includes: The first base material and the second base material are the same base material, and have a first A color transmission region, a first B color transmission region and a first multicolor transmission region on one surface, and a second surface on the other surface. An A color transmission region, a second B color transmission region, and a second multicolor transmission region may be provided.
  • the step of bonding two display members can be omitted in creating the display layer.
  • the registration for superimposition is only the registration at the time of printing on the other surface.
  • a light emitting display panel according to another aspect of the present invention is provided.
  • a display layer (6) having a plurality of light emitting display patterns;
  • the light irradiating means is arranged on the back side of the display layer and irradiates the display layer with light, and the light irradiating means emits light of two colors A and B which are different from each other.
  • the display layer has a single color display pattern formed of a material that can transmit light of a single color in the two colors, for each single color.
  • the display layer includes a first display member (10) and a second display member (20),
  • the first display member includes an adjacent first light shielding region (15) and a first A color transmission region (12) provided on the first base material
  • the second display member includes an adjacent second light shielding region (25) and a second A color transmission region (22) provided on the second base material
  • the second A color transmissive region is composed of a second A color double region (221) and a second A color cross-border region (222),
  • the entire area of the second light-shielding area overlaps with a part of the first light-shielding area
  • the second A-color bordering area overlaps with a part of the first light-shielding area
  • the second A-color double area is the first A-color transmission area.
  • the first display member and the second display member are stacked so as to overlap each other.
  • a light-emitting display panel includes: In a state where the first display member and the second display member are stacked, the width (arrow 223) of the second A color crossing border region (222) may be 0.03 mm or more and 0.8 mm or less.
  • the pinhole existing in the second A-color crossing boundary area is close to the contour line of the A-color transmission area.
  • a light emitting display panel is as follows.
  • the first base material and the second base material are the same base material, provided with a first light shielding region and a first A color transmission region on one surface, and a second light shielding region and a second A color transmission region on the other surface. You may have.
  • the process of bonding the two display members can be omitted in creating the display layer.
  • the registration for superimposition is only the registration at the time of printing on the other surface.
  • the light-emitting display panel is an invention that focuses on the multi-color transmission region and its periphery.
  • the display layer is divided into two members, the second multi-color transmission area overlaps the entire area of the first multi-color transmission area, and the second multi-color transmission area is covered with the first A color multi-color coating.
  • the first display member and the second display member are stacked so that the second A color transmission region overlaps the entire region of the first A color residual region.
  • ⁇ Registration misalignment, dimensional misalignment, and pasting misalignment at the time of printing are expected from the design stage, and the monochromatic transmission area is overlapped with a single monochromatic transmission area. This prevented the passage of light originating from pinholes located at a distance from the multicolor transmission region in the single color transmission region.
  • the multi-color transmission region it is set as a region in which no countermeasure against pinholes is adopted by utilizing the fact that neither the A color nor the B color passes.
  • the A color transmission region covers and hides the pinhole even at the edge of the region, thereby preventing the light passing from the pinhole.
  • the light-emitting display panel is an invention that focuses on the light-shielding region and its periphery.
  • the display layer is divided into two members, and the second A color transmission region is composed of a second A color double region and a second A color crossing region, and the entire second light shielding region is the first region.
  • the first display member overlaps with a part of the light shielding area
  • the second A color border boundary area overlaps with a part of the first light shielding area
  • the second A color double area overlaps with the first A color transmission area.
  • a second display member is arranged.
  • the pinhole is obscured in the light-shielding area (which blocks both the A and B colors), preventing light from originating from the pinhole. Is done.
  • the adjacent monochromatic area has an advantage that a countermeasure against pinholes can be taken up to the edge of the area.
  • FIG. 1 is an explanatory cross-sectional view of the light emitting display panel 1.
  • 2A and 2B are explanatory diagrams of the display layer.
  • FIG. 2A is an explanatory plan view of the first display member 10
  • FIG. 2B is an explanatory plan view of the second display member 20, and
  • FIG. It is a plane perspective explanatory drawing of the display layer 6 which laminated
  • FIGS. 3A and 3B are plan explanatory views of the display layer focusing on the multicolor transmissive region and its periphery.
  • FIG. 3A is a partial plan explanatory view of the first display member
  • FIG. 3B is a partial plan explanatory view of the second display member. is there.
  • FIG. 3A is a partial plan explanatory view of the first display member
  • FIG. 3B is a partial plan explanatory view of the second display member. is there.
  • FIG. 4 is an auxiliary plane explanatory view of the display layer paying attention to the multi-color transmission region and its periphery.
  • 5A and 5B are explanatory diagrams of the display layer focusing on the light shielding region and its periphery, wherein FIG. 5A is a partial plan explanatory view of the first display member, and FIG. 5B is a partial plan explanatory view of the second display member.
  • FIG. 6 is an auxiliary plane explanatory view of the display layer focusing on the light shielding portion and its periphery. It is explanatory drawing of the Example which expressed switching of the key display with the light emission display panel concerning this invention. It is the plane schematic diagram which showed an example of the display layer of the conventional light emission display panel.
  • FIG. 1 is a cross-sectional explanatory view of the light emitting display panel 1.
  • the light emitting display panel 1 includes a display layer 6 and a light source 7.
  • the display layer 6 is a laminate of the first display member 10 and the second display member 20.
  • the light source 7 is disposed on the back side of the display layer 6.
  • An arrow 81 in FIG. 1 indicates the observation surface side of the light emitting display panel 1
  • an arrow 82 indicates the back side of the light emitting display panel 1.
  • the viewpoint of the observer is on the arrow 81 side.
  • the light source 7 includes an A color light source 71 and a B color light source 72.
  • the A color light source 71 emits A color light.
  • the B color light source 72 emits B light.
  • a color and B color are two different colors. In this embodiment, A color is red and B color is blue.
  • the light source 7 has means for switching the emission color.
  • the light source 7 can turn on the A color light source 71 and turn off the B color light source 72 to emit only the A color.
  • the light source 7 can turn on the B color light source 72 and turn off the A color light source 71 to emit only the B color.
  • switching the emission color means light emission, quenching, changing the light emission amount, and the like. Switching of the light source may be performed by changing the amount of electricity supplied to the light source, or may be performed by mechanical means using a light shielding plate or a slit.
  • FIG. 2A and 2B are explanatory diagrams of the display layer.
  • FIG. 2A is an explanatory plan view of the first display member 10
  • FIG. 2B is an explanatory plan view of the second display member 20,
  • FIG. It is a plane perspective explanatory drawing of the display layer 6 which laminated
  • the first display member 10 includes a first A color transmission region 12, a first B color transmission region 13, a first multicolor transmission region 14, and a first light shielding region 15 on the first base material.
  • the first A color transmissive region 12, the first B color transmissive region 13, the first multicolor transmissive region 14, and the first light shielding region 15 do not overlap each other and exist independently.
  • the first A color transmission area 12 is red ink
  • the first B color transmission area 13 is blue ink
  • the first multicolor transmission area 14 is purple ink
  • the first light shielding area 15 is ink mixed with red ink and blue ink. Used to be formed by printing.
  • the display layer is formed of only the first display member 10 and the light source 7 turns on the red light source, the red light is transmitted through the first A color transmission region 12 and the first multicolor transmission region 14. A red horizontal line is displayed on the display panel. Further, when the light source 7 turns on the blue light source, the blue light is transmitted through the first B color transmissive region 13 and the first multicolor transmissive region 14, and a blue vertical line is displayed on the display panel.
  • the second display member 20 includes a second A color transmission region 22, a second B color transmission region 23, a second multicolor transmission region 24, and a second light shielding region 25 on the second base material.
  • the second A color transmissive region 22, the second B color transmissive region 23, the second multicolor transmissive region 24, and the second light shielding region 25 do not overlap each other and exist independently.
  • the second A color transmission area 22 is red ink
  • the second B color transmission area 23 is blue ink
  • the second multicolor transmission area 24 is purple ink
  • the second light shielding area 25 is red. It is formed by printing using inks that are a mixture of ink and blue ink.
  • the first substrate and the second substrate may be any of a plate shape, a sheet shape, and a film shape.
  • the first substrate and the second substrate are usually colorless and transparent. However, it is not limited to colorless and transparent, and when the first display member 10 and the second display member 20 are provided, if the A color transmission region, the B color transmission region, the multicolor transmission region, and the light shielding region 15 are provided. Good.
  • the material include materials that transmit light, for example, general-purpose resins such as polyethylene terephthalate, polystyrene resin, polyolefin resin, ABS resin, AS resin, acrylic resin, and AN resin.
  • general-purpose engineering resins such as polystyrene resins, polycarbonate resins, polyacetal resins, polycarbonate modified polyphenylene ether resins, polybutylene terephthalate resins, ultrahigh molecular weight polyethylene resins, polysulfone resins, polyphenylene sulfide resins, polyphenylene oxide resins, Super engineering resins such as polyarylate resin, polyetherimide resin, polyimide resin, liquid crystal polyester resin, and polyallyl heat-resistant resin can also be used.
  • the first multicolor transmission region 14 is covered with the second multicolor transmission region 24.
  • the second multi-color transmission region 24 is formed in a size that expands in the vertical and horizontal directions than the first multi-color transmission region 14. Therefore, the second multi-color transmission area is not only (1) the first multi-color transmission area, but also (2) a partial area of the first A-color transmission area and (3) a partial area of the first B-color transmission area. It also overlaps.
  • a multi-color transmission area + multi-color transmission area 44, an A-color transmission area + multi-color transmission area 49, and a B-color transmission area + multi-color transmission area 48 are formed.
  • the second light shielding area 25 is formed in a size narrower in the vertical and horizontal directions than the first light shielding area 15. For this reason, the first light shielding region 15 not only overlaps (1) the second light shielding region 25 but also (2) a part of the second A color transmission region, (3) a part of the second B color transmission region, and ( 4) It overlaps with a part of the second multicolor transmission region.
  • a light shielding area + light shielding area 41, a light shielding area + A color transmission area 46, a light shielding area + B color transmission area 45, and the like are formed.
  • a B color transmission region + B color transmission region 42 and an A color transmission region + A color transmission region 43 are formed.
  • the first display member 10 includes a first A color transmission region 12 and a first multicolor transmission region 14.
  • the first A color transmission region 12 and the first multicolor transmission region 14 are adjacent to each other, and the boundary line between these is the first vertical contour line 141.
  • the second display member 20 includes a second A color transmission region 22 and a second multicolor transmission region 24.
  • the second A color transmissive region 22 and the second multicolor transmissive region 24 are adjacent to each other, and the boundary line thereof is a second vertical contour 241.
  • the first A color transmission area 12 can be divided into a first A color multicolor covering area 121 and a first A color residual area 122. However, the same color is printed on the first A-color multicolor covered region 121 and the first A-color residual region 122, and the appearance and light transmittance are the same. Since these overlap with different areas formed on the second display member 20, they will be described with different names for convenience.
  • the boundary line between the first A color multicolor covering region 121 and the first A color residual region 122 is displayed on the first display member 10. A line projected above.
  • the arrow 123 shown in the figure indicates the width of the first A-color multicolored coating region.
  • the width of the first A color compound cover area is the geometric distance between the first vertical contour line 141 and the second vertical contour line 241 when the first display member and the second display member are placed in a laminated state. You can also.
  • FIG. 4 is an auxiliary explanatory diagram of the display layer 6.
  • the boundary lines of the respective regions on the first display member 10 are indicated by solid lines, and the boundary lines of the respective regions on the second display member 20 are indicated by broken lines.
  • the entire area of the first multicolor area 14 overlaps a part of the second multicolor area 24, and the first A color multicolor covered area 121 is the second multicolor area.
  • the first A color residual region 122 and the second A color transmissive region 22 are stacked so as to overlap a part of 24.
  • the pinhole 31 in the first A color residual area 122 is covered with the second A color transmission area 22. For this reason, when the blue light source 72 is turned on, the blue light is not transmitted and the superposition is successful.
  • the pinhole 32 existing in the first A-color multicolor covered area 121 is covered with the second multicolor transparent area 24.
  • the blue light source 72 When the blue light source 72 is turned on, the blue light passes through the second multi-color transmission region, so that the countermeasure for blocking the light passing through the pinhole 32 does not function.
  • the position of the pinhole 32 is in the vicinity of the first multicolor transmission region 14 and the amount of light emitted from the first multicolor transmission region 14 is much larger than the amount of light emitted from the pinhole.
  • the light passing through is inconspicuous.
  • the first multi-color transmission region is originally transmitted regardless of whether the light emission light source is red or blue, and therefore the pinhole is not conspicuous.
  • an upper limit is 0.8 mm or less normally, Preferably it is 0.4 mm or less, More preferably, it is 0.3 mm or less.
  • variety is the maximum value of the distance (For example, distance of the pinhole 32 and the 1st vertical outline 141) of the pinhole which light permeate
  • the lower limit of the width (arrow 123) of the first A-color / multi-color transmission region is a value that allows for a positional deviation (bonding deviation) between the first display member and the second display member, and a registration deviation and dimensional deviation during printing. Yes, usually 0.03 mm or more, more preferably 0.05 mm or more.
  • the overlapping state of the first display member and the second display member in the case where the first A color transmission region and the first multicolor transmission region are in contact with each other has been described. If these regions exist apart from each other, the top, bottom, left, and right of the second region may be made larger than each first region and overlapped.
  • the first display member, the second display member, and the stacking relationship thereof will be described in accordance with the second invention, which is an invention that focuses on the light shielding region and its periphery.
  • the first display member 10 includes a first light shielding region 15 and a first A color transmission region 12.
  • the first light shielding region 15 and the first A color transmission region 12 are adjacent to each other, and the boundary line between these is the first light shielding boundary line 153.
  • FIG. 5A shows the first light shielding region 15 a located below the first A color transmission region 12 in the drawing.
  • the second display member 20 includes a second light shielding region 25 and a second A color transmission region 22.
  • the second light shielding area 25 and the second A color transmissive area 22 are adjacent to each other, and the boundary line between these is the second light shielding boundary line 253.
  • the second A color transmissive region 22 is divided into a second A color double region 221 and second A color transboundary regions 222a and 222b.
  • the second A color double region 221 and the second A color transboundary regions 222a and 222b are printed with the same ink, and the appearance and light transmittance are the same.
  • the boundary between the second A color double region 221 and the second A color transboundary region 222 a becomes the second display member 20. It is a projected line. The same applies to the boundary between the second A-color double region 221 and the second A-color bordering region 222b.
  • the arrow 223 shown in the figure indicates the width of the second A color cross-border area.
  • the width of the second A color boundary region is the geometric distance between the first permeation boundary line 153 and the second permeation boundary line 253 when the first display member and the second display member are placed in a laminated state. You can also.
  • FIG. 6 is an auxiliary explanatory diagram of the display layer 6.
  • the boundary lines of the respective regions on the first display member 10 are indicated by solid lines, and the boundary lines of the respective regions on the second display member 20 are indicated by broken lines.
  • the entire area of the second light shielding area 25 overlaps a part of the first light shielding area, and the second A color boundary area 222a is the first light shielding area.
  • the second A color double region 221 and the first A color transmissive region 12 are overlapped with each other.
  • the pinhole 36 present at the position where the second light shielding region 25 covers is covered with the second light shielding region 25.
  • the red light passing through the pinhole 36 when the red light source is turned on is shielded by the second light shielding region 25.
  • the blue light passing through the pinhole 36 when the blue light source is turned on is shielded by the second light shielding region 25. For this reason, the countermeasure which blocks the light which passes the pinhole 36 is effective.
  • the red light that has passed through the pinhole 37 when the red light source is lit passes through the second A color transboundary region that is a part of the second A color translucent region To do. For this reason, the superposition which blocks the light transmitted through the pinhole 37 does not function. However, the position of the pinhole 37 is in the vicinity of the A color transmission region 12, and the light passing through the pinhole 37 is not conspicuous.
  • the upper limit of the width of the second A color transboundary area is usually 0.8 mm or less, preferably 0.4 mm or less, more preferably 0.3 mm or less. Moreover, a lower limit is 0.03 mm or more normally, More preferably, it is 0.05 mm or more.
  • a lower limit is 0.03 mm or more normally, More preferably, it is 0.05 mm or more.
  • the pinhole 38 in the first A color transmission region 12 is shielded by the second A color double region 221, and the countermeasure for blocking the passing light is effective. And even if the pinhole 38 in the first A color transmission region 12 exists at the edge of these regions (that is, a position very close to the first light shielding region 15a), it is possible to take measures to block light by overlapping. it can.
  • FIG. 6 shows a pinhole 39.
  • the pinhole 39 in the first light shielding area and in the vicinity of the first multicolor transmission area is covered with the second multicolor transmission area.
  • the red light source 71 When the red light source 71 is turned on, the red light passes through the second multi-color transmission region, so that the superposition countermeasure that blocks the light passing through the pinhole 39 does not function.
  • the blue light source 72 When the blue light source 72 is turned on, the blue light is transmitted through the second multi-color transmission region, so that the superposition countermeasure that blocks the light passing through the pinhole 39 does not function.
  • the position of the pinhole 39 is in the vicinity of the first multicolor transmission region, and the amount of light emitted from the first multicolor transmission region is much larger than the amount of light emitted from the pinhole. For this reason, even when the red light source is lit or the blue light source is lit, the pinhole 39 is inconspicuous.
  • the first display member 10 and the second display member 20 are usually used in contact with each other in a laminated state. This is for preventing peeling of the printed layer. However, even a display layer in which the printed layers are exposed is included in the technical scope of the present invention.
  • either the first display member 10 or the second display member 20 may exist on the observation surface side. That is, the 1st display member 10 may be located in the observation surface side, and the 1st display member 10 may be located in the back side.
  • first base material and the second base material are the same base material, and one surface is provided with a first A color transmission region, a first B color transmission region, a first multicolor transmission region and a first light shielding region
  • the display layer may include a second A color transmission region, a second B color transmission region, a second multicolor transmission region, and a second light shielding region on the surface.
  • the step of bonding the two display members can be omitted, and the overlaying has an advantage of being completed only by registration at the time of the other surface printing.
  • the light source may be one that arranges a lamp on the back side of the light emitting display panel, or one that arranges a lamp on the side surface using a light guide plate. Further, a diffusion plate that diffuses light may be disposed between the display layer 6 and the light source 7. As the light source, LEDs of two colors having different emission colors can be used. The two-color LEDs can be driven to turn on and off independently for each emission color.
  • the light of A color or B color emitted from each light source is not limited to a light source having a wavelength range within 100 nm, such as a single color LED, and may be light having a wavelength range of 200 nm, for example.
  • the wavelength range refers to a wavelength range from a wavelength on the low wavelength side that gives 15% of the strongest wavelength intensity to a wavelength on the high wavelength side that gives 15% of the strongest wavelength intensity in the emission spectrum of the light source.
  • a monochromatic LED is suitable as a light source.
  • the light source is not limited to the LED, and a fluorescent lamp that emits a single color may be used.
  • the light source may be a light source that emits light with a reduced spectral width of light by combining a white light source (for example, a tungsten lamp) and spectral means such as a diffraction grating and a prism.
  • the wavelengths that can be transmitted through the A-color transmission region, the B-color transmission region, and the multi-color transmission region do not have to correspond to the entire wavelength region emitted from the light source.
  • the wavelength of a narrower region closer to green in the wavelength region emitted from the red LED may be used.
  • the emission color displayed in the emission display pattern is the emission color of the red LED. Will be different.
  • FIG. 7 shows an embodiment in which switching of key display is expressed by a light emitting display panel according to the present invention.
  • (a) is a schematic diagram of surface transmission of the display layer
  • (b) is a light emitting display panel when no light source is emitted
  • (c) is a light emitting display panel when a red light source is emitted
  • (d) is when a blue light source is emitted.
  • the light emitting display panel is shown.
  • the transmission region adjacent to the multicolor transmission region is not limited to the red transmission region, and may be a blue transmission region. That is, the first A color transmission region, the second A color transmission region, and the like described in the claims can be replaced with the first B color transmission region, the second B color transmission region, and the like as they are.
  • the transmission region adjacent to the light shielding region is not limited to the red transmission region, and may be a blue transmission region. That is, the first A color transmission region, the second A color transmission region, and the like described in the claims can be replaced with the first B color transmission region, the second B color transmission region, and the like as they are.

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Abstract

Disclosed is a light emitting display panel having a display layer through which two colors individually pass and which prevents light from passing through a pin hole. The display panel is comprised of a display layer (6) having a plurality of transmission light display patterns, and a light source (7) which emits a color "A" and a color B. The display layer (6) is comprised of a first display member (10) and a second display member (20). The first display member is provided with a first color "A" transmission area (22) and a second multi-color transmission area (14). The second display member is provided with a second color "A" transmission area (22) and a second multi-color transmission area (24). The first color "A" transmission area (12) consists of a first color "A" and multi-color coat area (121) and a first remaining color "A" area (122). The second multi-color transmission area overlaps the first multi-color transmission area and the first color "A" and multi-color coat area and the second color "A" transmission area overlaps the first remaining color "A" area.

Description

発光表示パネルLuminescent display panel
　本発明は家庭用電気機器、音響機器、携帯電話などの小型電子機器、自動車などのインジケータ（indicator）類に用いられるものであり、表示文字・表示目盛り・マークなどのパターン表示を行う発光表示パネルに関するものである。 INDUSTRIAL APPLICABILITY The present invention is used for household electrical devices, acoustic devices, small electronic devices such as mobile phones, indicators for automobiles, etc., and a light-emitting display panel that displays patterns such as display characters, display scales, and marks. It is about.
　発明者らは、発光色の異なる２つ以上の光源と、光源からの光のうち透過可能な波長の異なる材料からなる２つ以上の異なる発光表示パターンを表示層に形成した発光表示パネルにおいて、発光色を切り替えることにより発光表示パターンを切り替えることができる発光表示パネルを提案した（例えば特許文献１参照。）。 The inventors of the present invention have provided a light emitting display panel in which two or more light sources having different emission colors and two or more different light emitting display patterns made of materials having different wavelengths that can be transmitted among the light from the light source are formed on the display layer. A light-emitting display panel that can switch the light-emitting display pattern by switching the light-emitting color has been proposed (see, for example, Patent Document 1).
　図８は、従来の発光表示パネルの表示層の一例を示した平面模式図である。図８（ａ）は表示層の平面模式図であり、図８（ｂ）はその部分拡大図である。表示層１１０は、赤色光源からの光を透過させる発光表示パターン１１１ｒと青色光源からの光を透過させる発光表示パターン１１１ｂを有し、発光表示パターン１１１ｒと発光表示パターン１１１ｂが、重複領域１１２で重なっている。図８（ｃ）は、赤色光源点灯時に表示される文字を図示したものであり、図８（ｄ）は、青色光源点灯時に表示される文字を図示したものである。 FIG. 8 is a schematic plan view showing an example of a display layer of a conventional light emitting display panel. FIG. 8A is a schematic plan view of the display layer, and FIG. 8B is a partially enlarged view thereof. The display layer 110 includes a light emitting display pattern 111r that transmits light from a red light source and a light emitting display pattern 111b that transmits light from a blue light source, and the light emitting display pattern 111r and the light emitting display pattern 111b overlap in an overlapping region 112. ing. FIG. 8C illustrates characters displayed when the red light source is turned on, and FIG. 8D illustrates characters displayed when the blue light source is turned on.
　この従来の発光表示パネルにおいては、同一エリアに２つ以上の発光表示パターンが共存し、それぞれのパターンが重複する箇所が存在する場合、当該重複領域を２色が透過される色で表現することにより、発光色を切り替えた時にそれぞれの発光表示パターンが独立して効果的に表示されていた。 In this conventional light-emitting display panel, when two or more light-emitting display patterns coexist in the same area and there are portions where the respective patterns overlap, the overlapping region is expressed by a color that allows two colors to be transmitted. Thus, each light emission display pattern is effectively displayed independently when the emission color is switched.
特開２００８－２６２００８号公報JP 2008-262008 A
　上述した発光表示パネルの表示層は、通常、透明基材にオフセット印刷などの印刷により形成される。印刷時にインキに気泡が生じたり、ごみが巻き込まれたりして、表示層にピンホールができる場合がある。 The display layer of the light emitting display panel described above is usually formed on a transparent substrate by printing such as offset printing. In some cases, bubbles may be generated in the ink during printing, or dust may be entrapped, resulting in pinholes in the display layer.
　ピンホールがあると発光色がそのまま透過する。例えば、青色を透過すべき領域にあるピンホールは赤色光源発光時に赤色に光り、発光表示パターンが変わる。このため、発光表示パネルの品位が低下する。 If there is a pinhole, the emitted color is transmitted as it is. For example, a pinhole in a region that should transmit blue light red when a red light source emits light, and the light emission display pattern changes. For this reason, the quality of the light emitting display panel is lowered.
　本発明にかかる発光表示パネルは透過光を視覚観察するものである。透過光表示層にあっては、ピンホールの直径が４０μｍ程度以上あれば、ピンホール透過光が視覚観察される。一方、通常の印刷物（その典型は紙への印刷物である）は印刷面で起こる反射光を視覚観察する。反射光を観察する印刷物にあっては、ピンホールの直径が１００μｍ程度未満であれば、ピンホールの存在が視覚観察されない。
　透過光表示層においては、通常の印刷物にあっては無視できる小さなピンホールであっても、視覚観察される。このため、小さなピンホールであっても、ピンホールが存在すれば発光表示パネルの品位低下の要因となる。透過光表示層においてピンホールに対する対策は、通常の印刷物におけるピンホールに対する対策以上に重要である。 The light-emitting display panel according to the present invention visually observes transmitted light. In the transmitted light display layer, if the diameter of the pinhole is about 40 μm or more, the transmitted light through the pinhole is visually observed. On the other hand, a normal printed matter (typically a printed matter on paper) visually observes the reflected light generated on the printing surface. In the printed matter for observing the reflected light, the presence of the pinhole is not visually observed if the diameter of the pinhole is less than about 100 μm.
In the transmitted light display layer, even a small pinhole that can be ignored in a normal printed matter is visually observed. For this reason, even if it is a small pinhole, if a pinhole exists, it will become a factor of the quality reduction of a light emission display panel. Countermeasures against pinholes in the transmitted light display layer are more important than countermeasures against pinholes in normal printed matter.
　反射光を観察する従来の印刷物におけるピンホール対策の経験から導かれる、透過光表示層におけるピンホール対策は（１）重ね塗り（２）同一柄を印刷した２枚の基材積層などが考えられる。 As for the countermeasure against pinholes in the transmitted light display layer, which is derived from the experience of countermeasures against pinholes in the conventional printed matter for observing the reflected light, (1) layer coating (2) lamination of two substrates printed with the same pattern can be considered. .
　（１）重ね塗りの検討
　簡便なピンホール対策は黒色インキを重ね塗りすることである。しかし、透過光表示層では、Ａ色透過領域、Ｂ色透過領域などに黒色インキを塗り重ねると発光光源からの光が遮光されるので、透過層の意味をなさなくなる。 (1) Study of overcoating A simple countermeasure against pinholes is to overcoat with black ink. However, in the transmitted light display layer, if black ink is overlaid on the A-color transmissive region, the B-color transmissive region, and the like, light from the light-emitting light source is shielded, so that the transmissive layer has no meaning.
　そこで同一色を塗り重ねることになる。しかし、Ａ色透過領域とＢ色透過領域があるので、いずれか一方領域の完全塗り重ねを期して、一方領域を一回り大きな塗り重ねにすることができない。これでは他方の表示領域に一方色の塗り重ねが及ぶ結果、他方表示領域が狭くなるからである。 Therefore, the same color will be repainted. However, since there is an A-color transmissive region and a B-color transmissive region, it is not possible to make one region larger than the other region by completely coating one of the regions. This is because the other display area is narrowed as a result of the one color being overlaid on the other display area.
　このため、Ａ色透過領域に同一面積の塗り重ねを行い、Ｂ色透過領域に同一面積の塗り重ねを行うことになる。実際の印刷工程では、見当ずれを見越して、塗り重ね領域を一回り小さな領域にせざるを得ない。これでは、Ａ色透過領域の縁、Ｂ色透過領域の縁などにピンホール対策が取れなくなる。 Therefore, the same area is applied to the A color transmission region and the same area is applied to the B color transmission region. In the actual printing process, in consideration of misregistration, it is necessary to make the coating area one area smaller. This makes it impossible to take a countermeasure against pinholes at the edge of the A color transmission region, the edge of the B color transmission region, and the like.
　また、インキを重ねると乾燥不足によるインキ剥がれなどが生じる。 Also, when ink is piled up, ink may peel off due to insufficient drying.
　さらには、重ね塗り部分には段差ができるので、次の加工、例えば、透過表示層を形成した基材を透明樹脂板に張り合わせる加工で、泡を巻き込むなどの問題が生じる。 Furthermore, since a step is formed in the overcoated portion, problems such as entrainment of bubbles occur in the next processing, for example, the processing in which the base material on which the transmissive display layer is formed is bonded to the transparent resin plate.
　（２）同一柄を印刷した２枚の基材積層の検討
　発光表示層に、Ａ色透過領域とＢ色透過領域があるので、どちらか一方の透過領域を大きな重なりにすることができない。貼り合せずれを見越して、２枚の基材に形成する重ね合わせを意図する２つの領域の一方を、一回り小さな領域にせざるを得ない。このため、Ａ色透過領域の縁、Ｂ色透過領域の縁などで効果的な対策とならない。 (2) Study of lamination of two base materials printed with the same pattern Since the light emitting display layer has an A color transmission region and a B color transmission region, either one of the transmission regions cannot be largely overlapped. In anticipation of the misalignment, one of the two regions intended for superposition formed on the two substrates must be made a slightly smaller region. For this reason, it is not an effective measure at the edge of the A color transmission region, the edge of the B color transmission region, or the like.
　解決しようとする問題点は、２色を個別に透過する透過表示層を備えた発光表示パネルにあって、ピンホールに由来する光通過を防止することにある。 The problem to be solved is in a light-emitting display panel having a transmissive display layer that individually transmits two colors, and prevents light passing from a pinhole.
　本発明のその他の課題は、本発明の説明により明らかになる。 Other problems of the present invention will become apparent from the description of the present invention.
　ここで、理解を容易にするために本発明の実施態様に対応する符号を付けて説明するが、本発明は当該実施態様に限定されるものではない。 Here, in order to facilitate understanding, a description is given with reference numerals corresponding to the embodiments of the present invention, but the present invention is not limited to the embodiments.
　本発明の一の態様にかかる発光表示パネルは、
複数の発光表示パターンを有する表示層（６）と、
前記表示層の背面側に配置されて前記表示層に光を照射する光照射手段からなり、前記光照射手段は、発光色が互いに異なる２つの色であるＡ色、Ｂ色を発光する光源（７）を有し、
前記表示層は、前記２色中の単一色の光を透過可能な材料で形成された単一色表示パターンを、各々の単一色についてそれぞれ有しており、
前記光源の発光色を切り替えて、一の前記単一色表示パターンを独立して表示する発光表示パネルにおいて、
　表示層は、第一表示部材（１０）と第二表示部材（２０）からなり、
　第一表示部材は第一基材に設けられた隣接する第一Ａ色透過領域（１２）と第一複色透過領域（１４）を備え、
　第二表示部材は第二基材に設けられた隣接する第二Ａ色透過領域（２２）と第二複色透過領域（２４）を備え、
　第一Ａ色透過領域は第一Ａ色複色被覆領域（１２１）と第一Ａ色残余領域（１２２）からなり、
　第二複色透過領域（２４）が第一複色透過領域（１４）の全領域に重なり、かつ、第二複色透過領域（２４）が第一Ａ色複色被覆領域（１２１）に重なり、
　第二Ａ色透過領域（２２）が第一Ａ色残余領域（１２２）の全領域に重なるように、
　第一表示部材と第二表示部材が積層配置される。 A light-emitting display panel according to one embodiment of the present invention includes:
A display layer (6) having a plurality of light emitting display patterns;
The light irradiating means is arranged on the back side of the display layer and irradiates the display layer with light, and the light irradiating means emits light of two colors A and B which are different from each other. 7)
The display layer has a single color display pattern formed of a material that can transmit light of a single color in the two colors, for each single color.
In the light-emitting display panel that switches the light emission color of the light source and displays the single color display pattern independently,
The display layer includes a first display member (10) and a second display member (20),
The first display member includes an adjacent first A color transmission region (12) and a first multicolor transmission region (14) provided on the first base material,
The second display member includes an adjacent second A color transmission region (22) and a second multicolor transmission region (24) provided on the second base material,
The first A color transmission area is composed of a first A color multicolor covering area (121) and a first A color residual area (122).
The second multicolor transmission area (24) overlaps the entire area of the first multicolor transmission area (14), and the second multicolor transmission area (24) overlaps the first A color multicolor coverage area (121). ,
The second A color transmission area (22) overlaps the entire area of the first A color residual area (122).
The first display member and the second display member are stacked.
　本発明の好ましい実施態様にかかる発光表示パネルは、
　第一表示部材と第二表示部材が積層配置されている状態において、
第一Ａ色複色被覆領域（１２１）の幅（矢印１２３）は０．０３ｍｍ以上０．８ｍｍ以下であってもよい。 A light-emitting display panel according to a preferred embodiment of the present invention includes:
In the state where the first display member and the second display member are arranged in a stacked manner,
The width (arrow 123) of the first A-color multicolor covered region (121) may be 0.03 mm or more and 0.8 mm or less.
　本好ましい実施態様にかかる発光表示パネルにおいては、第一Ａ色複色被覆領域に存在するピンホールが、第一複色透過領域の輪郭線に近接することになる。ピンホールを通過する光と第一複色透過領域を透過する光が近接する結果、人がその存在を別個独立したものと視覚認識できなくなる。よって、より一層、ピンホールの存在を認識しがたい発光表示パネルとなる利点がある。 In the light-emitting display panel according to the present preferred embodiment, the pinhole existing in the first A-color multicolor covered region is close to the contour line of the first multicolor transmissive region. As a result of the proximity of the light passing through the pinhole and the light passing through the first multi-color transmission region, the person cannot visually recognize its presence as being independent. Therefore, there is an advantage that the light-emitting display panel is more difficult to recognize the presence of pinholes.
　本発明の他の好ましい実施態様にかかる発光表示パネルは、
　前記第一基材と第二基材は同一の基材であり、一方表面に、第一Ａ色透過領域、第一Ｂ色透過領域と第一複色透過領域を備え、他方表面に第二Ａ色透過領域、第二Ｂ色透過領域と第二複色透過領域を備えていてもよい。 A light-emitting display panel according to another preferred embodiment of the present invention includes:
The first base material and the second base material are the same base material, and have a first A color transmission region, a first B color transmission region and a first multicolor transmission region on one surface, and a second surface on the other surface. An A color transmission region, a second B color transmission region, and a second multicolor transmission region may be provided.
　本好ましい実施態様にかかる発光表示パネルにおいては、表示層作成にあたり２枚の表示部材を張り合わせる工程を省略することができる。また、重ね合わせにかかる見当あわせは、他方表面印刷時の見当あわせのみとなる利点がある。 In the light-emitting display panel according to the present preferred embodiment, the step of bonding two display members can be omitted in creating the display layer. In addition, there is an advantage that the registration for superimposition is only the registration at the time of printing on the other surface.
　本発明の他の態様にかかる発光表示パネルは、
　複数の発光表示パターンを有する表示層（６）と、
前記表示層の背面側に配置されて前記表示層に光を照射する光照射手段からなり、前記光照射手段は、発光色が互いに異なる２つの色であるＡ色、Ｂ色を発光する光源（７）を有し、
前記表示層は、前記２色中の単一色の光を透過可能な材料で形成された単一色表示パターンを、各々の単一色についてそれぞれ有しており、
前記光源の発光色を切り替えて、一の前記単一色表示パターンを独立して表示する発光表示パネルにおいて、
　表示層は、第一表示部材（１０）と第二表示部材（２０）からなり、
　第一表示部材は第一基材に設けられた隣接する第一遮光領域（１５）と第一Ａ色透過領域（１２）を備え、
　第二表示部材は第二基材に設けられた隣接する第二遮光領域（２５）と第二Ａ色透過領域（２２）を備え、
　第二Ａ色透過領域は、第二Ａ色二重領域（２２１）と第二Ａ色越境領域（２２２）からなり、
　第二遮光領域の全領域が第一遮光領域の一部と重なり、第二Ａ色越境領域が第一遮光領域の一部と重なり、第二Ａ色二重領域が第一Ａ色透過領域と重なるように第一表示部材と第二表示部材が積層配置される。 A light emitting display panel according to another aspect of the present invention is provided.
A display layer (6) having a plurality of light emitting display patterns;
The light irradiating means is arranged on the back side of the display layer and irradiates the display layer with light, and the light irradiating means emits light of two colors A and B which are different from each other. 7)
The display layer has a single color display pattern formed of a material that can transmit light of a single color in the two colors, for each single color.
In the light-emitting display panel that switches the light emission color of the light source and displays the single color display pattern independently,
The display layer includes a first display member (10) and a second display member (20),
The first display member includes an adjacent first light shielding region (15) and a first A color transmission region (12) provided on the first base material,
The second display member includes an adjacent second light shielding region (25) and a second A color transmission region (22) provided on the second base material,
The second A color transmissive region is composed of a second A color double region (221) and a second A color cross-border region (222),
The entire area of the second light-shielding area overlaps with a part of the first light-shielding area, the second A-color bordering area overlaps with a part of the first light-shielding area, and the second A-color double area is the first A-color transmission area. The first display member and the second display member are stacked so as to overlap each other.
　本発明の他の好ましい実施態様にかかる発光表示パネルは、
　第一表示部材と第二表示部材が積層配置されている状態において、第二Ａ色越境領域（２２２）の幅（矢印２２３）が０．０３ｍｍ以上０．８ｍｍ以下であってもよい。 A light-emitting display panel according to another preferred embodiment of the present invention includes:
In a state where the first display member and the second display member are stacked, the width (arrow 223) of the second A color crossing border region (222) may be 0.03 mm or more and 0.8 mm or less.
　本好ましい実施態様にかかる発光表示パネルにおいては、第二Ａ色越境領域に存在するピンホールが、Ａ色透過領域の輪郭線に近接することになる。ピンホールを通過する光とＡ色透過領域を透過する光が近接する結果、人がその存在を別個独立したものと視覚認識できなくなる。よって、より一層、ピンホールの存在を認識しがたい発光表示パネルとなる利点がある。 In the light-emitting display panel according to the present preferred embodiment, the pinhole existing in the second A-color crossing boundary area is close to the contour line of the A-color transmission area. As a result of the proximity of the light that passes through the pinhole and the light that passes through the A-color transmission region, a person cannot visually recognize its presence as separate. Therefore, there is an advantage that the light-emitting display panel is more difficult to recognize the presence of pinholes.
　本発明のその他の好ましい実施態様にかかる発光表示パネルは、
　前記第一基材と第二基材は同一の基材であり、一方表面に第一遮光領域と第一Ａ色透過領域を備え、他方表面に第二遮光領域と第二Ａ色透過領域を備えていてもよい。 A light emitting display panel according to another preferred embodiment of the present invention is as follows.
The first base material and the second base material are the same base material, provided with a first light shielding region and a first A color transmission region on one surface, and a second light shielding region and a second A color transmission region on the other surface. You may have.
　本好ましい実施態様にかかる発光表示パネルにおいては、表示層作成にあたり、２の表示部材を張り合わせる工程を省略することができる。また、重ね合わせにかかる見当あわせは、他方表面印刷時の見当あわせのみとなる利点がある。 In the light-emitting display panel according to this preferred embodiment, the process of bonding the two display members can be omitted in creating the display layer. In addition, there is an advantage that the registration for superimposition is only the registration at the time of printing on the other surface.
　以上説明した本発明、本発明の好ましい実施態様、これらに含まれる構成要素は可能な限り組み合わせて実施することができる。 The present invention described above, preferred embodiments of the present invention, and components included in these can be implemented in combination as much as possible.
　本発明の一の態様にかかる発光表示パネルは複色透過領域とその周辺に着目した発明である。その他の構成とともに、表示層を２の部材に分けて、第二複色透過領域が第一複色透過領域の全領域に重なり、かつ、第二複色透過領域が第一Ａ色複色被覆領域に重なり、第二Ａ色透過領域が第一Ａ色残余領域の全領域に重なるように、第一表示部材と第二表示部材が積層配置される。 The light-emitting display panel according to one embodiment of the present invention is an invention that focuses on the multi-color transmission region and its periphery. Along with the other configurations, the display layer is divided into two members, the second multi-color transmission area overlaps the entire area of the first multi-color transmission area, and the second multi-color transmission area is covered with the first A color multi-color coating. The first display member and the second display member are stacked so that the second A color transmission region overlaps the entire region of the first A color residual region.
　印刷時の見当ズレ及び寸法ズレ並びに張り合わせズレを設計時から見込み、単色透過領域を一回り広い単色透過領域で重ねている。これにより、単色透過領域中で複色透過領域から遠い距離に位置するピンホールに由来する光の通過を防止した。他方、複色透過領域の近傍では、Ａ色Ｂ色どちらの色が通過しても目立たないことを利用して、ピンホール対策を採用しない領域としている。 ¡Registration misalignment, dimensional misalignment, and pasting misalignment at the time of printing are expected from the design stage, and the monochromatic transmission area is overlapped with a single monochromatic transmission area. This prevented the passage of light originating from pinholes located at a distance from the multicolor transmission region in the single color transmission region. On the other hand, in the vicinity of the multi-color transmission region, it is set as a region in which no countermeasure against pinholes is adopted by utilizing the fact that neither the A color nor the B color passes.
　このため、Ａ色とＢ色を切り替えて表示する発光表示パネルにかかわらず、Ａ色透過領域では、領域の縁であってもピンホールが覆い隠され、ピンホールに由来する光通過が防止される。 Therefore, regardless of the light-emitting display panel that switches between the A color and the B color, the A color transmission region covers and hides the pinhole even at the edge of the region, thereby preventing the light passing from the pinhole. The
　本発明の他の態様にかかる発光表示パネルは遮光領域とその周辺に着目した発明である。その他の構成とともに、表示層を２の部材に分けて、第二Ａ色透過領域は、第二Ａ色二重領域と第二Ａ色越境領域からなり、第二遮光領域の全領域が第一遮光領域の一部と重なり、第二Ａ色越境領域が第一遮光領域の一部と重なり、かつ、第二Ａ色二重領域が第一Ａ色透過領域と重なるように、第一表示部材と第二表示部材が積層配置される発光表示パネルである。 The light-emitting display panel according to another aspect of the present invention is an invention that focuses on the light-shielding region and its periphery. In addition to the other configurations, the display layer is divided into two members, and the second A color transmission region is composed of a second A color double region and a second A color crossing region, and the entire second light shielding region is the first region. The first display member overlaps with a part of the light shielding area, the second A color border boundary area overlaps with a part of the first light shielding area, and the second A color double area overlaps with the first A color transmission area. And a second display member.
　印刷時の見当ズレ及び寸法ズレ並びに張り合わせズレを設計時から見込み、遮光領域を一回り狭い遮光領域で重ねている。これにより、遮光領域中で単色透過領域から遠い距離に位置するピンホールに由来する光の通過を防止した。他方、単色透過領域の特定範囲にある近傍領域では、同一色が通過しても目立たないことを利用して、ピンホール対策を採用しない領域としている。 ・ ・ ・ Registration misalignment, dimensional misalignment, and pasting misalignment at the time of printing are expected from the design stage, and the light shielding area is overlapped with a narrow light shielding area. This prevented the passage of light originating from the pinhole located at a distance from the monochromatic transmission region in the light shielding region. On the other hand, in the vicinity region in the specific range of the monochromatic transmission region, the fact that the same color does not stand out is used as a region where no pinhole countermeasure is adopted.
　このため、Ａ色とＢ色を切り替えて表示する発光表示パネルにかかわらず、（Ａ色とＢ色どちらも遮る）遮光領域では、ピンホールが覆い隠され、ピンホールに由来する光通過が防止される。同時に近接する単色領域は、当該領域の縁までピンホール対策を施すことができる利点をも有する。 For this reason, regardless of the light-emitting display panel that switches between A and B colors, the pinhole is obscured in the light-shielding area (which blocks both the A and B colors), preventing light from originating from the pinhole. Is done. At the same time, the adjacent monochromatic area has an advantage that a countermeasure against pinholes can be taken up to the edge of the area.
図１は発光表示パネル１の断面説明図である。FIG. 1 is an explanatory cross-sectional view of the light emitting display panel 1. 図２は表示層の説明図であり、（ａ）は第一表示部材１０の平面説明図、（ｂ）は第二表示部材２０の平面説明図、（ｃ）は第一表示部材と第二表示部材を積層した表示層６の平面透視説明図である。2A and 2B are explanatory diagrams of the display layer. FIG. 2A is an explanatory plan view of the first display member 10, FIG. 2B is an explanatory plan view of the second display member 20, and FIG. It is a plane perspective explanatory drawing of the display layer 6 which laminated | stacked the display member. 図３は複色透過領域とその周辺に着目した表示層の平面説明図であり、（ａ）は第一表示部材の部分平面説明図、（ｂ）は第二表示部材の部分平面説明図である。FIGS. 3A and 3B are plan explanatory views of the display layer focusing on the multicolor transmissive region and its periphery. FIG. 3A is a partial plan explanatory view of the first display member, and FIG. 3B is a partial plan explanatory view of the second display member. is there. 図４は複色透過領域とその周辺に着目した表示層の補助平面説明図である。FIG. 4 is an auxiliary plane explanatory view of the display layer paying attention to the multi-color transmission region and its periphery. 図５は遮光領域とその周辺に着目した表示層の説明図であり、（ａ）は第一表示部材の部分平面説明図、（ｂ）は第二表示部材の部分平面説明図である。5A and 5B are explanatory diagrams of the display layer focusing on the light shielding region and its periphery, wherein FIG. 5A is a partial plan explanatory view of the first display member, and FIG. 5B is a partial plan explanatory view of the second display member. 図６は遮光部分とその周辺に着目した表示層の補助平面説明図である。FIG. 6 is an auxiliary plane explanatory view of the display layer focusing on the light shielding portion and its periphery. キー表示の切り替えを本発明にかかる発光表示パネルで表現した実施例説明図である。It is explanatory drawing of the Example which expressed switching of the key display with the light emission display panel concerning this invention. 従来の発光表示パネルの表示層の一例を示した平面模式図である。It is the plane schematic diagram which showed an example of the display layer of the conventional light emission display panel.
　以下、図面を参照して本発明の実施例にかかる発光表示パネルをさらに説明する。本発明の実施例に記載した部材や部分の寸法、材質、形状、その相対位置などは、とくに特定的な記載のない限りは、この発明の範囲をそれらのみに限定する趣旨のものではなく、単なる説明例にすぎない。 Hereinafter, a light emitting display panel according to an embodiment of the present invention will be further described with reference to the drawings. The dimensions, materials, shapes, relative positions, etc. of the members and parts described in the embodiments of the present invention are not intended to limit the scope of the present invention only to those unless otherwise specified. It is just an illustrative example.
　図１は発光表示パネル１の断面説明図である。発光表示パネル１は表示層６と光源７からなる。表示層６は第一表示部材１０と第二表示部材２０を積層したものである。 FIG. 1 is a cross-sectional explanatory view of the light emitting display panel 1. The light emitting display panel 1 includes a display layer 6 and a light source 7. The display layer 6 is a laminate of the first display member 10 and the second display member 20.
　光源７は表示層６の背面側に配置されている。図１中の矢印８１は発光表示パネル１の観察面側を示し、矢印８２は発光表示パネル１の背面側を示している。観察者の視点は矢印８１側にある。 The light source 7 is disposed on the back side of the display layer 6. An arrow 81 in FIG. 1 indicates the observation surface side of the light emitting display panel 1, and an arrow 82 indicates the back side of the light emitting display panel 1. The viewpoint of the observer is on the arrow 81 side.
　光源７はＡ色光源７１とＢ色光源７２を備える。Ａ色光源７１はＡ色の光を発光する。Ｂ色光源７２はＢ色の光を発光する。Ａ色とＢ色は互いに異なる２つの色である。本実施例において、Ａ色は赤色であり、Ｂ色は青色である。 The light source 7 includes an A color light source 71 and a B color light source 72. The A color light source 71 emits A color light. The B color light source 72 emits B light. A color and B color are two different colors. In this embodiment, A color is red and B color is blue.
　光源７は発光色の切り替え手段を備えている。光源７はＡ色光源７１を点灯し、Ｂ色光源７２を消灯してＡ色のみを発光することができる。また、光源７はＢ色光源７２を点灯し、Ａ色光源７１を消灯してＢ色のみを発光することができる。本発明において、発光色の切り替えとは、発光、消光、発光の光量を変化させることなどを意味する。光源の切り替えは、光源へ供給する電気量を変化させることにより行ってもよく、また、遮光板やスリットなどを用いる機械的手段で行ってもよい。 The light source 7 has means for switching the emission color. The light source 7 can turn on the A color light source 71 and turn off the B color light source 72 to emit only the A color. The light source 7 can turn on the B color light source 72 and turn off the A color light source 71 to emit only the B color. In the present invention, switching the emission color means light emission, quenching, changing the light emission amount, and the like. Switching of the light source may be performed by changing the amount of electricity supplied to the light source, or may be performed by mechanical means using a light shielding plate or a slit.
　図２は表示層の説明図であり、（ａ）は第一表示部材１０の平面説明図、（ｂ）は第二表示部材２０の平面説明図、（ｃ）は第一表示部材と第二表示部材を積層した表示層６の平面透視説明図である。 2A and 2B are explanatory diagrams of the display layer. FIG. 2A is an explanatory plan view of the first display member 10, FIG. 2B is an explanatory plan view of the second display member 20, and FIG. It is a plane perspective explanatory drawing of the display layer 6 which laminated | stacked the display member.
　第一表示部材１０は第一基材の上に、第一Ａ色透過領域１２、第一Ｂ色透過領域１３、第一複色透過領域１４と第一遮光領域１５を備えている。第一Ａ色透過領域１２、第一Ｂ色透過領域１３、第一複色透過領域１４と第一遮光領域１５は、互いに重なりあうことなく、別個独立に存在している。 The first display member 10 includes a first A color transmission region 12, a first B color transmission region 13, a first multicolor transmission region 14, and a first light shielding region 15 on the first base material. The first A color transmissive region 12, the first B color transmissive region 13, the first multicolor transmissive region 14, and the first light shielding region 15 do not overlap each other and exist independently.
　第一Ａ色透過領域１２は赤色インキ、第一Ｂ色透過領域１３は青色インキ、第一複色透過領域１４は紫色インキ、第一遮光領域１５は赤色インキと青色インキを混合したインキをそれぞれ使用して、印刷により形成されている。 The first A color transmission area 12 is red ink, the first B color transmission area 13 is blue ink, the first multicolor transmission area 14 is purple ink, and the first light shielding area 15 is ink mixed with red ink and blue ink. Used to be formed by printing.
　仮に表示層を第一表示部材１０のみで形成した場合であって、光源７が赤色光源を点灯すれば、第一Ａ色透過領域１２と第一複色透過領域１４を赤色光が透過して、表示パネルには赤色の横線が表示される。また、光源７が青色光源を点灯すれば、第一Ｂ色透過領域１３と第一複色透過領域１４を青色光が透過して、表示パネルには青色の縦線が表示される。 If the display layer is formed of only the first display member 10 and the light source 7 turns on the red light source, the red light is transmitted through the first A color transmission region 12 and the first multicolor transmission region 14. A red horizontal line is displayed on the display panel. Further, when the light source 7 turns on the blue light source, the blue light is transmitted through the first B color transmissive region 13 and the first multicolor transmissive region 14, and a blue vertical line is displayed on the display panel.
　第二表示部材２０は第二基材の上に、第二Ａ色透過領域２２、第二Ｂ色透過領域２３、第二複色透過領域２４と第二遮光領域２５を備えている。第二Ａ色透過領域２２、第二Ｂ色透過領域２３、第二複色透過領域２４と第二遮光領域２５は、互いに重なりあうことなく、別個独立に存在している。 The second display member 20 includes a second A color transmission region 22, a second B color transmission region 23, a second multicolor transmission region 24, and a second light shielding region 25 on the second base material. The second A color transmissive region 22, the second B color transmissive region 23, the second multicolor transmissive region 24, and the second light shielding region 25 do not overlap each other and exist independently.
　第一表示部材１０におけると同様に、第二Ａ色透過領域２２は赤色インキ、第二Ｂ色透過領域２３は青色インキ、第二複色透過領域２４は紫色インキ、第二遮光領域２５は赤色インキと青色インキを混合したインキをそれぞれ使用して、印刷により形成されている。 As in the first display member 10, the second A color transmission area 22 is red ink, the second B color transmission area 23 is blue ink, the second multicolor transmission area 24 is purple ink, and the second light shielding area 25 is red. It is formed by printing using inks that are a mixture of ink and blue ink.
　第一基材と第二基材は、板状、シート状、フィルム状のいずれであってもよい。第一基材と第二基材は、通常は、無色透明である。もっとも、無色透明に限られるものではなく、第一表示部材１０と第二表示部材２０としたときに、Ａ色透過領域、Ｂ色透過領域、複色透過領域と遮光領域１５を備えていればよい。その材質としては、光を透過する材質、例えば、ポリエチレンテレフタレート、ポリスチレン系樹脂、ポリオレフィン系樹脂、ＡＢＳ樹脂、ＡＳ樹脂、アクリル系樹脂、ＡＮ樹脂などの汎用樹脂を挙げることができる。また、ポリスチレン系樹脂、ポリカーボネート系樹脂、ポリアセタール系樹脂、ポリカーボネート変性ポリフェニレンエーテル樹脂、ポリブチレンテレフタレート樹脂、超高分子量ポリエチレン樹脂などの汎用エンジニアリング樹脂や、ポリスルホン樹脂、ポリフェニレンサルファイド系樹脂、ポリフェニレンオキシド系樹脂、ポリアリレート樹脂、ポリエーテルイミド樹脂、ポリイミド樹脂、液晶ポリエステル樹脂、ポリアリル系耐熱樹脂などのスーパーエンジニアリング樹脂を用いることもできる。 The first substrate and the second substrate may be any of a plate shape, a sheet shape, and a film shape. The first substrate and the second substrate are usually colorless and transparent. However, it is not limited to colorless and transparent, and when the first display member 10 and the second display member 20 are provided, if the A color transmission region, the B color transmission region, the multicolor transmission region, and the light shielding region 15 are provided. Good. Examples of the material include materials that transmit light, for example, general-purpose resins such as polyethylene terephthalate, polystyrene resin, polyolefin resin, ABS resin, AS resin, acrylic resin, and AN resin. In addition, general-purpose engineering resins such as polystyrene resins, polycarbonate resins, polyacetal resins, polycarbonate modified polyphenylene ether resins, polybutylene terephthalate resins, ultrahigh molecular weight polyethylene resins, polysulfone resins, polyphenylene sulfide resins, polyphenylene oxide resins, Super engineering resins such as polyarylate resin, polyetherimide resin, polyimide resin, liquid crystal polyester resin, and polyallyl heat-resistant resin can also be used.
　次に、第一表示部材１０と第二表示部材２０上のそれぞれの領域の重なり状態について説明する。 Next, the overlapping state of the respective areas on the first display member 10 and the second display member 20 will be described.
　積層状態において、第一複色透過領域１４は第二複色透過領域２４に覆われる。ここで、第二複色透過領域２４は第一複色透過領域１４よりも上下左右に広がった大きさに形成されている。このため、第二複色透過領域は(1)第一複色透過領域のみならず、(2)第一Ａ色透過領域の一部領域と(3)第一Ｂ色透過領域の一部領域にも重なる。こうして、複色透過領域＋複色透過領域４４、Ａ色透過領域＋複色透過領域４９とＢ色透過領域＋複色透過領域４８が形成される。 In the laminated state, the first multicolor transmission region 14 is covered with the second multicolor transmission region 24. Here, the second multi-color transmission region 24 is formed in a size that expands in the vertical and horizontal directions than the first multi-color transmission region 14. Therefore, the second multi-color transmission area is not only (1) the first multi-color transmission area, but also (2) a partial area of the first A-color transmission area and (3) a partial area of the first B-color transmission area. It also overlaps. Thus, a multi-color transmission area + multi-color transmission area 44, an A-color transmission area + multi-color transmission area 49, and a B-color transmission area + multi-color transmission area 48 are formed.
　また、第二遮光領域２５は第一遮光領域１５よりも上下左右に狭まった大きさに形成されている。このため、第一遮光領域１５は(1)第二遮光領域２５に重なるのみならず、(2)第二Ａ色透過領域の一部、(3)第二Ｂ色透過領域の一部および(4)第二複色透過領域の一部とも重なっている。こうして、遮光領域＋遮光領域４１、遮光領域＋Ａ色透過領域４６と遮光領域＋Ｂ色透過領域４５などが形成される。また、Ｂ色透過領域＋Ｂ色透過領域４２とＡ色透過領域＋Ａ色透過領域４３が形成される。 Further, the second light shielding area 25 is formed in a size narrower in the vertical and horizontal directions than the first light shielding area 15. For this reason, the first light shielding region 15 not only overlaps (1) the second light shielding region 25 but also (2) a part of the second A color transmission region, (3) a part of the second B color transmission region, and ( 4) It overlaps with a part of the second multicolor transmission region. Thus, a light shielding area + light shielding area 41, a light shielding area + A color transmission area 46, a light shielding area + B color transmission area 45, and the like are formed. Further, a B color transmission region + B color transmission region 42 and an A color transmission region + A color transmission region 43 are formed.
　複色透過領域とその周辺に着目した発明である第一の発明に即して、当該重なり関係をさらに説明する。図３（ａ）を参照して、第一表示部材１０は第一Ａ色透過領域１２と第一複色透過領域１４を備えている。第一Ａ色透過領域１２と第一複色透過領域１４は隣接していて、これらの境界線は第一縦輪郭線１４１である。 The overlapping relationship will be further described in the context of the first invention that focuses on the multicolor transmission region and its periphery. Referring to FIG. 3A, the first display member 10 includes a first A color transmission region 12 and a first multicolor transmission region 14. The first A color transmission region 12 and the first multicolor transmission region 14 are adjacent to each other, and the boundary line between these is the first vertical contour line 141.
　図３（ｂ）を参照して、第二表示部材２０は第二Ａ色透過領域２２と第二複色透過領域２４を備えている。第二Ａ色透過領域２２と第二複色透過領域２４は隣接していて、これらの境界線は第二縦輪郭線２４１である。 Referring to FIG. 3B, the second display member 20 includes a second A color transmission region 22 and a second multicolor transmission region 24. The second A color transmissive region 22 and the second multicolor transmissive region 24 are adjacent to each other, and the boundary line thereof is a second vertical contour 241.
　第一Ａ色透過領域１２は第一Ａ色複色被覆領域１２１と第一Ａ色残余領域１２２に区分することができる。もっとも第一Ａ色複色被覆領域１２１と第一Ａ色残余領域１２２は同一インキが印刷されていて、外観や光透過性は同一である。これらは、第二表示部材２０上に形成されている異なる領域と重なるものであるから、便宜上異なる名称を付けて説明する。 The first A color transmission area 12 can be divided into a first A color multicolor covering area 121 and a first A color residual area 122. However, the same color is printed on the first A-color multicolor covered region 121 and the first A-color residual region 122, and the appearance and light transmittance are the same. Since these overlap with different areas formed on the second display member 20, they will be described with different names for convenience.
　第一Ａ色複色被覆領域１２１と第一Ａ色残余領域１２２の境界線は、第二表示部材２０を第一表示部材１０を積層したとき、第二縦輪郭線２４１を第一表示部材１０上に投影した線である。 When the first display member 10 is laminated on the second display member 20, the boundary line between the first A color multicolor covering region 121 and the first A color residual region 122 is displayed on the first display member 10. A line projected above.
　図中に示した矢印１２３は第一Ａ色複色被覆領域の幅を示している。第一Ａ色複色被覆領域の幅は、第一表示部材と第二表示部材を積層状態に置いたときの、第一縦輪郭線１４１と第二縦輪郭線２４１の幾何学的距離ということもできる。 The arrow 123 shown in the figure indicates the width of the first A-color multicolored coating region. The width of the first A color compound cover area is the geometric distance between the first vertical contour line 141 and the second vertical contour line 241 when the first display member and the second display member are placed in a laminated state. You can also.
　図４は表示層６の補助的説明図である。図４中で、第一表示部材１０上の各領域の境界線を実線で示し、第二表示部材２０上の各領域の境界線を破線で示している。 FIG. 4 is an auxiliary explanatory diagram of the display layer 6. In FIG. 4, the boundary lines of the respective regions on the first display member 10 are indicated by solid lines, and the boundary lines of the respective regions on the second display member 20 are indicated by broken lines.
　第一表示部材１０と第二表示部材２０は、第一複色領域１４の全領域が第二複色領域２４の一部と重なり、第一Ａ色複色被覆領域１２１が第二複色領域２４の一部と重なり、第一Ａ色残余領域１２２と第二Ａ色透過領域２２が重なる状態で積層される。 In the first display member 10 and the second display member 20, the entire area of the first multicolor area 14 overlaps a part of the second multicolor area 24, and the first A color multicolor covered area 121 is the second multicolor area. The first A color residual region 122 and the second A color transmissive region 22 are stacked so as to overlap a part of 24.
　表示層６にピンホール３１～３３がある場合の光通過状態を説明する。ここでは、説明の便宜上、第一表示部材上にピンホールがあると仮定して説明する。 The light passing state when the display layer 6 has pinholes 31 to 33 will be described. Here, for convenience of explanation, explanation will be made assuming that there is a pinhole on the first display member.
　第一Ａ色残余領域１２２にあるピンホール３１は、第二Ａ色透過領域２２で覆われる。このため、青色光源７２点灯時に青色光は透過せず、重ね合わせが奏功する。 The pinhole 31 in the first A color residual area 122 is covered with the second A color transmission area 22. For this reason, when the blue light source 72 is turned on, the blue light is not transmitted and the superposition is successful.
　第一Ａ色複色被覆領域１２１に存在するピンホール３２は、第二複色透過領域２４で覆われる。青色光源７２点灯時に、青色光は第二複色透過領域を透過するので、ピンホール３２を通過する光を遮る対策は機能しない。しかし、ピンホール３２の位置は第一複色透過領域１４の近傍であり、かつ第一複色透過領域１４から放出される光量はピンホールから放出される光量よりも極めて大きいので、ピンホール３２を通過する光は目立たない。 The pinhole 32 existing in the first A-color multicolor covered area 121 is covered with the second multicolor transparent area 24. When the blue light source 72 is turned on, the blue light passes through the second multi-color transmission region, so that the countermeasure for blocking the light passing through the pinhole 32 does not function. However, the position of the pinhole 32 is in the vicinity of the first multicolor transmission region 14 and the amount of light emitted from the first multicolor transmission region 14 is much larger than the amount of light emitted from the pinhole. The light passing through is inconspicuous.
　第一複色透過領域１４にあるピンホール３３については、元来第一複色透過領域は発光光源の色が赤色であっても、青色であっても透過するので、ピンホールは目立たない。 As for the pinhole 33 in the first multi-color transmission region 14, the first multi-color transmission region is originally transmitted regardless of whether the light emission light source is red or blue, and therefore the pinhole is not conspicuous.
　第一Ａ色複色透過領域の幅（矢印１２３）について、上限は、通常０．８ｍｍ以下、好ましく０．４ｍｍ以下、より好ましくは０．３ｍｍ以下である。当該幅は、光が透過するピンホールと第一複色透過領域１４の境界線との距離（例えばピンホール３２と第一縦輪郭線１４１との距離）の最大値である。上限がこの範囲にあれば、人の視覚では離隔が認識されないので、ピンホールの存在がより一層視覚認識されなくなる。 About the width | variety (arrow 123) of the 1st A color multicolor transmission area | region, an upper limit is 0.8 mm or less normally, Preferably it is 0.4 mm or less, More preferably, it is 0.3 mm or less. The said width | variety is the maximum value of the distance (For example, distance of the pinhole 32 and the 1st vertical outline 141) of the pinhole which light permeate | transmits, and the boundary line of the 1st multicolor transmission area | region 14. FIG. If the upper limit is within this range, the distance is not recognized by human vision, so that the presence of the pinhole is further not visually recognized.
　また、第一Ａ色複色透過領域の幅（矢印１２３）について、下限は第一表示部材と第二表示部材の配置ズレ（貼り合せズレ）および印刷時の見当ズレと寸法ズレを見込む値であり、通常０．０３ｍｍ以上であり、より好ましくは０．０５ｍｍ以上である。 The lower limit of the width (arrow 123) of the first A-color / multi-color transmission region is a value that allows for a positional deviation (bonding deviation) between the first display member and the second display member, and a registration deviation and dimensional deviation during printing. Yes, usually 0.03 mm or more, more preferably 0.05 mm or more.
　以上説明したように、第一Ａ色残余領域１２２にあるピンホール３１は、これら領域の縁に存在しても、その通過光を遮る対策をとることができる。 As described above, even if the pinhole 31 in the first A color residual region 122 exists at the edge of these regions, it is possible to take measures to block the passing light.
　以上、第一Ａ色透過領域と第一複色透過領域が接している場合における第一表示部材と第二表示部材の各領域の重なり状態を説明した。これら領域が離隔して存在していれば、それぞれの第一領域よりも第二領域の上下左右を大きくし、重ねればよい。 As described above, the overlapping state of the first display member and the second display member in the case where the first A color transmission region and the first multicolor transmission region are in contact with each other has been described. If these regions exist apart from each other, the top, bottom, left, and right of the second region may be made larger than each first region and overlapped.
　次に、遮光領域とその周辺に着目した発明である第二の発明に即して、第一表示部材と第二表示部材およびその積層関係を説明する。 Next, the first display member, the second display member, and the stacking relationship thereof will be described in accordance with the second invention, which is an invention that focuses on the light shielding region and its periphery.
　図５（ａ）を参照して、第一表示部材１０は第一遮光領域１５と第一Ａ色透過領域１２を備えている。第一遮光領域１５と第一Ａ色透過領域１２は隣接しており、これらの境界線は第一透遮境界線１５３である。また、図５（ａ）には、第一Ａ色透過領域１２の紙面下側に在る第一遮光領域１５ａを図示している。 Referring to FIG. 5A, the first display member 10 includes a first light shielding region 15 and a first A color transmission region 12. The first light shielding region 15 and the first A color transmission region 12 are adjacent to each other, and the boundary line between these is the first light shielding boundary line 153. FIG. 5A shows the first light shielding region 15 a located below the first A color transmission region 12 in the drawing.
　図５（ｂ）を参照して、第二表示部材２０は第二遮光領域２５と第二Ａ色透過領域２２を備えている。第二遮光領域２５と第二Ａ色透過領域２２は隣接しており、これらの境界線は第二透遮境界線２５３である。第二Ａ色透過領域２２は第二Ａ色二重領域２２１と第二Ａ色越境領域２２２ａ、２２２ｂに区分される。もっとも第二Ａ色透過領域２２は第二Ａ色二重領域２２１と第二Ａ色越境領域２２２ａ、２２２ｂは同一インキが印刷されていて、外観や光透過性は同一である。 Referring to FIG. 5B, the second display member 20 includes a second light shielding region 25 and a second A color transmission region 22. The second light shielding area 25 and the second A color transmissive area 22 are adjacent to each other, and the boundary line between these is the second light shielding boundary line 253. The second A color transmissive region 22 is divided into a second A color double region 221 and second A color transboundary regions 222a and 222b. However, in the second A color transmissive region 22, the second A color double region 221 and the second A color transboundary regions 222a and 222b are printed with the same ink, and the appearance and light transmittance are the same.
　これらは、第一表示部材１０上に形成されている異なる領域と重なるものであるから、便宜上異なる名称を付けて説明する。第二Ａ色二重領域２２１と第二Ａ色越境領域２２２ａの境界は、第二表示部材２０を第一表示部材１０に積層したとき、第一透遮境界線１５３を第二表示部材２０に投影した線である。第二Ａ色二重領域２２１と第二Ａ色越境領域２２２ｂの境界も同様である。 These are overlapped with different areas formed on the first display member 10, and will be described with different names for convenience. When the second display member 20 is laminated on the first display member 10, the boundary between the second A color double region 221 and the second A color transboundary region 222 a becomes the second display member 20. It is a projected line. The same applies to the boundary between the second A-color double region 221 and the second A-color bordering region 222b.
　図中に示した矢印２２３は第二Ａ色越境領域の幅を示している。第二Ａ色越境領域の幅は、第一表示部材と第二表示部材を積層状態に置いたときの、第一透遮境界線１５３と第二透遮境界線２５３の幾何学的距離ということもできる。 The arrow 223 shown in the figure indicates the width of the second A color cross-border area. The width of the second A color boundary region is the geometric distance between the first permeation boundary line 153 and the second permeation boundary line 253 when the first display member and the second display member are placed in a laminated state. You can also.
　図６は表示層６の補助的説明図である。図６中で、第一表示部材１０上の各領域の境界線を実線で示し、第二表示部材２０上の各領域の境界線を破線で示している。 FIG. 6 is an auxiliary explanatory diagram of the display layer 6. In FIG. 6, the boundary lines of the respective regions on the first display member 10 are indicated by solid lines, and the boundary lines of the respective regions on the second display member 20 are indicated by broken lines.
　図６も同時に参照して、第一表示部材と第二表示部材は、第二遮光領域２５の全領域が第一遮光領域の一部と重なり、第二Ａ色越境領域２２２ａが第一遮光領域１５の一部と重なり、第二Ａ色二重領域２２１と第一Ａ色透過領域１２が重なる状態で積層される。 Referring to FIG. 6 at the same time, in the first display member and the second display member, the entire area of the second light shielding area 25 overlaps a part of the first light shielding area, and the second A color boundary area 222a is the first light shielding area. The second A color double region 221 and the first A color transmissive region 12 are overlapped with each other.
　表示層６にピンホール３６～３８がある場合の光通過とその対策を説明する。ここでは、説明の便宜上、第一表示部材上にピンホールがあると仮定して説明する。 The light passage when the display layer 6 has pinholes 36 to 38 and countermeasures will be described. Here, for convenience of explanation, explanation will be made assuming that there is a pinhole on the first display member.
　第二遮光領域２５が被さる位置に存在するピンホール３６は、第二遮光領域２５で覆われる。赤色光源点灯時にピンホール３６を通過する赤色光は第二遮光領域２５で遮光される。また、青色光源点灯時にピンホール３６を通過する青色光は第二遮光領域２５で遮光される。このためピンホール３６を通過する光を遮る対策が奏功する。 The pinhole 36 present at the position where the second light shielding region 25 covers is covered with the second light shielding region 25. The red light passing through the pinhole 36 when the red light source is turned on is shielded by the second light shielding region 25. Further, the blue light passing through the pinhole 36 when the blue light source is turned on is shielded by the second light shielding region 25. For this reason, the countermeasure which blocks the light which passes the pinhole 36 is effective.
　第二Ａ色越境領域２２２ａが被さる位置に存在するピンホール３７は、赤色光源点灯時にピンホール３７を通過した赤色光が、第二Ａ色透過領域の一部分である第二Ａ色越境領域を透過する。このため、ピンホール３７を透過する光を遮る重ね合わせは機能しない。しかし、ピンホール３７の位置はＡ色透過領域１２の近傍であり、ピンホール3７を通過する光は目立たない。 In the pinhole 37 existing at the position where the second A color transboundary region 222a covers, the red light that has passed through the pinhole 37 when the red light source is lit passes through the second A color transboundary region that is a part of the second A color translucent region To do. For this reason, the superposition which blocks the light transmitted through the pinhole 37 does not function. However, the position of the pinhole 37 is in the vicinity of the A color transmission region 12, and the light passing through the pinhole 37 is not conspicuous.
　第二Ａ色越境領域の幅の上限は、通常０．８ｍｍ以下、好ましく０．４ｍｍ以下、より好ましくは０．３ｍｍ以下である。また、下限値は、通常０．０３ｍｍ以上であり、より好ましくは０．０５ｍｍ以上である。すでに、第一Ａ色複色被覆領域の幅と第一Ｂ色複色被覆領域の幅の範囲で説明した、近接する点を認識する人間の視覚の観点及び印刷や配置ズレの観点から、これらの値が定まり、好ましい値も同じとなる。 The upper limit of the width of the second A color transboundary area is usually 0.8 mm or less, preferably 0.4 mm or less, more preferably 0.3 mm or less. Moreover, a lower limit is 0.03 mm or more normally, More preferably, it is 0.05 mm or more. Already described in the range of the width of the first A-color multicolor covered area and the width of the first B-color multicolor covered area, from the viewpoint of human vision for recognizing adjacent points and from the viewpoint of printing and misalignment, these The preferred value is the same.
　なお、青色光源点灯時にピンホール３７を通過した光は、第二Ａ色越境領域により遮蔽される。 Note that the light that has passed through the pinhole 37 when the blue light source is lit is shielded by the second A color transboundary region.
　また、第一Ａ色透過領域１２にあるピンホール３８は、第二Ａ色二重領域２２１で遮光され、通過光を遮る対策が奏功する。そして、第一Ａ色透過領域１２にあるピンホール３８は、これら領域の縁（すなわち、第一遮光領域１５ａと極めて近い位置）に存在しても、重ね併せにより光を遮る対策をとることができる。 Also, the pinhole 38 in the first A color transmission region 12 is shielded by the second A color double region 221, and the countermeasure for blocking the passing light is effective. And even if the pinhole 38 in the first A color transmission region 12 exists at the edge of these regions (that is, a position very close to the first light shielding region 15a), it is possible to take measures to block light by overlapping. it can.
さらに、表示層６にピンホール３９がある場合の光通過とその対策を説明する。図６にピンホール３９を図示している、ここでは、説明の便宜上、第一表示部材上にピンホールがあると仮定して説明する。 Further, light passage and countermeasures when the pinhole 39 is present in the display layer 6 will be described. FIG. 6 shows a pinhole 39. Here, for convenience of explanation, it is assumed that there is a pinhole on the first display member.
　第一遮光領域中であって第一複色透過領域の近傍にあるピンホール３９は第二複色透過領域に覆われる。赤色光源７１点灯時にあって、赤色光は第二複色透過領域を透過するのでピンホール３９を通過する光を遮る重ね合わせ対策は機能しない。青色光源７２点灯時にあって、青色光は第二複色透過領域を透過するのでピンホール３９を通過する光を遮る重ね合わせ対策は機能しない。 The pinhole 39 in the first light shielding area and in the vicinity of the first multicolor transmission area is covered with the second multicolor transmission area. When the red light source 71 is turned on, the red light passes through the second multi-color transmission region, so that the superposition countermeasure that blocks the light passing through the pinhole 39 does not function. When the blue light source 72 is turned on, the blue light is transmitted through the second multi-color transmission region, so that the superposition countermeasure that blocks the light passing through the pinhole 39 does not function.
　しかし、ピンホール３９の位置は第一複色透過領域の近傍であり、かつ第一複色透過領域から放出される光量はピンホールから放出される光量よりも極めて大きい。このため、赤色光源点灯時であっても、青色光源点灯時であっても、ピンホール３９は目立たない。 However, the position of the pinhole 39 is in the vicinity of the first multicolor transmission region, and the amount of light emitted from the first multicolor transmission region is much larger than the amount of light emitted from the pinhole. For this reason, even when the red light source is lit or the blue light source is lit, the pinhole 39 is inconspicuous.
　第一表示部材１０と第二表示部材２０は、通常、互いの印刷層を接して積層状態に張り合わせて使用される。印刷層の剥離を防止するためである。もっとも、互いの印刷層を露出した状態に積層した表示層であっても、本発明の技術的範囲に含まれる。 The first display member 10 and the second display member 20 are usually used in contact with each other in a laminated state. This is for preventing peeling of the printed layer. However, even a display layer in which the printed layers are exposed is included in the technical scope of the present invention.
　積層状態とした表示層６にあって、第一表示部材１０と第二表示部材２０はどちらが観察面側に存在してもかまわない。つまり、第一表示部材１０が観察面側に位置してもよく、第一表示部材１０が背面側に位置してもよい。 In the display layer 6 in the laminated state, either the first display member 10 or the second display member 20 may exist on the observation surface side. That is, the 1st display member 10 may be located in the observation surface side, and the 1st display member 10 may be located in the back side.
　また、第一基材と第二基材を同一の基材とし、一方表面に第一Ａ色透過領域、第一Ｂ色透過領域、第一複色透過領域と第一遮光領域を備え、他方表面に第二Ａ色透過領域、第二Ｂ色透過領域、第二複色透過領域と第二遮光領域を備えた表示層であってもよい。この場合には、２の表示部材を張り合わせる工程を省略することができ、また、重ね合わせは、他方表面印刷時の見当あわせのみで終了する利点がある。 Further, the first base material and the second base material are the same base material, and one surface is provided with a first A color transmission region, a first B color transmission region, a first multicolor transmission region and a first light shielding region, The display layer may include a second A color transmission region, a second B color transmission region, a second multicolor transmission region, and a second light shielding region on the surface. In this case, the step of bonding the two display members can be omitted, and the overlaying has an advantage of being completed only by registration at the time of the other surface printing.
　光源は、発光表示パネルの背面側にランプを配置するものであってもよく、また、導光板を用い側面にランプを配置するものであってもよい。さらに、表示層６と光源７の間に、光を拡散させる拡散板を配置してもよい。光源は、発光色が異なる２色のＬＥＤを用いることができる。２色のＬＥＤは、発光色毎に独立して点灯、消灯などの駆動が可能である。 The light source may be one that arranges a lamp on the back side of the light emitting display panel, or one that arranges a lamp on the side surface using a light guide plate. Further, a diffusion plate that diffuses light may be disposed between the display layer 6 and the light source 7. As the light source, LEDs of two colors having different emission colors can be used. The two-color LEDs can be driven to turn on and off independently for each emission color.
　個々の光源が発するＡ色またはＢ色の光とは、例えば、単色ＬＥＤのような波長範囲が１００ｎｍ以内にある光源に限られず、例えば、波長範囲が２００ｎｍの光であってもよい。波長範囲とは、光源の発光スペクトルにおいて、最強波長強度の１５％を与える低波長側の波長から、最強波長強度の１５％を与える高波長側の波長までの波長範囲をいう。 The light of A color or B color emitted from each light source is not limited to a light source having a wavelength range within 100 nm, such as a single color LED, and may be light having a wavelength range of 200 nm, for example. The wavelength range refers to a wavelength range from a wavelength on the low wavelength side that gives 15% of the strongest wavelength intensity to a wavelength on the high wavelength side that gives 15% of the strongest wavelength intensity in the emission spectrum of the light source.
　単色の光はその波長範囲が狭いと発光表示パネルの単色透過領域、複色透過領域などの設計が容易となる。このような観点から、及び、電力消費が少ない、小型であるなどの理由により、光源として単色ＬＥＤが相応しい。 When the wavelength range of monochromatic light is narrow, it is easy to design a monochromatic transmission region and a multicolor transmission region of the light-emitting display panel. From this point of view and for reasons such as low power consumption and small size, a monochromatic LED is suitable as a light source.
　しかし、光源はＬＥＤに限るものではなく、単一色を発光する蛍光灯等を使用してもよい。また、光源は、白色光源（例えばタングステンランプ）と回折格子、プリズムなどの分光手段を組み合わせて、光のスペクトル幅を小さくした光を発する光源であってもよい。 However, the light source is not limited to the LED, and a fluorescent lamp that emits a single color may be used. In addition, the light source may be a light source that emits light with a reduced spectral width of light by combining a white light source (for example, a tungsten lamp) and spectral means such as a diffraction grating and a prism.
　さらに、Ａ色透過領域、Ｂ色透過領域と複色透過領域が透過可能な波長とは、光源から発光される波長領域にまるごと対応している必要はない。例えば、赤色ＬＥＤからの発光される波長領域の中で緑色に近い側のより狭い領域の波長だけであってもよく、この場合、発光表示パターンで表示される発光色は赤色ＬＥＤの発光色とは異なったものになる。 Further, the wavelengths that can be transmitted through the A-color transmission region, the B-color transmission region, and the multi-color transmission region do not have to correspond to the entire wavelength region emitted from the light source. For example, only the wavelength of a narrower region closer to green in the wavelength region emitted from the red LED may be used. In this case, the emission color displayed in the emission display pattern is the emission color of the red LED. Will be different.
　図７はキー表示の切り替えを本発明にかかる発光表示パネルで表現した実施例である。図中（ａ）は表示層の表面透過模式図であり、（ｂ）は光源非発光時の発光表示パネル、（ｃ）は赤色光源発光時の発光表示パネル、（ｄ）は青色光源発光時の発光表示パネルを示している。 FIG. 7 shows an embodiment in which switching of key display is expressed by a light emitting display panel according to the present invention. In the figure, (a) is a schematic diagram of surface transmission of the display layer, (b) is a light emitting display panel when no light source is emitted, (c) is a light emitting display panel when a red light source is emitted, and (d) is when a blue light source is emitted. The light emitting display panel is shown.
　本発明はその要旨を変更しない範囲で、種々に変更して実施することができる。
　本発明の一の態様において、複色透過領域に隣接する透過領域は赤色透過領域の限られるものではなく、青色透過領域であってもよい。すなわち、請求項に記載している第一Ａ色透過領域、第二Ａ色透過領域などは、そのまま、第一Ｂ色透過領域、第二Ｂ色透過領域などと置換できる。 The present invention can be implemented with various modifications without departing from the spirit of the present invention.
In one aspect of the present invention, the transmission region adjacent to the multicolor transmission region is not limited to the red transmission region, and may be a blue transmission region. That is, the first A color transmission region, the second A color transmission region, and the like described in the claims can be replaced with the first B color transmission region, the second B color transmission region, and the like as they are.
　本発明の他の態様において、遮光領域に隣接する透過領域は赤色透過領域に限られるものではなく、青色透過領域であってもよい。すなわち、請求項に記載している第一Ａ色透過領域、第二Ａ色透過領域などは、そのまま、第一Ｂ色透過領域、第二Ｂ色透過領域などと置換できる。 In another aspect of the present invention, the transmission region adjacent to the light shielding region is not limited to the red transmission region, and may be a blue transmission region. That is, the first A color transmission region, the second A color transmission region, and the like described in the claims can be replaced with the first B color transmission region, the second B color transmission region, and the like as they are.
　１　　発光表示パネル
　６　　表示層
　７　　光源
　１０　第一表示部材
　１２　第一Ａ色透過領域
　１２１　第一Ａ色複色被覆領域
　１２２　第一Ａ色残余領域
　１３　第一Ｂ色透過領域
　１４　第一複色透過領域
　１５　第一遮光領域
　２０　第二表示部材
　２２　第二Ａ色透過領域
　２２１　第二Ａ色二重領域
　２２２　第二Ａ色越境領域
　２３　第二Ｂ色透過領域
　２４　第二複色透過領域
　２５　第二遮光領域
　３１、３２、３３、３６、３７、３８、３９　ピンホール
　４１　遮光領域＋遮光領域
　４２　Ｂ色透過領域＋Ｂ色透過領域
　４３　Ａ色透過領域＋Ａ色透過領域
　４４　複色透過領域＋複色透過領域
　４５　遮光領域＋Ｂ色透過領域
　４６　遮光領域＋Ａ色透過領域
　４７　遮光領域＋複色透過領域
　４８　Ｂ色透過領域＋複色透過領域
　４９　Ａ色透過領域＋複色透過領域
　７１　Ａ色光源
　７２　Ｂ色光源 DESCRIPTION OF SYMBOLS 1 Light emitting display panel 6 Display layer 7 Light source 10 1st display member 12 1st A color transmission area 121 1st A color multicolor covering area 122 1st A color residual area 13 1st B color transmission area 14 1st multicolor transmission Region 15 First light-shielding region 20 Second display member 22 Second A color transmission region 221 Second A color double region 222 Second A color transboundary region 23 Second B color transmission region 24 Second multicolor transmission region 25 Second Light shielding area 31, 32, 33, 36, 37, 38, 39 Pinhole 41 Light shielding area + light shielding area 42 B color transmission area + B color transmission area 43 A color transmission area + A color transmission area 44 Multicolor transmission area + Multicolor transmission Area 45 Light shielding area + B color transmission area 46 Light shielding area + A color transmission area 47 Light shielding area + multicolor transmission area 48 B color transmission area + multicolor transmission area 49 A color transmission area + multicolor transmission area 71 A color light source 72 B color Source

Claims (6)

  1. 複数の発光表示パターンを有する表示層と、
    前記表示層の背面側に配置されて前記表示層に光を照射する光照射手段からなり、前記光照射手段は、発光色が互いに異なる２つの色であるＡ色、Ｂ色を発光する光源を有し、
    前記表示層は、前記２色中の単一色の光を透過可能な材料で形成された単一色表示パターンを、各々の単一色についてそれぞれ有しており、
    前記光源の発光色を切り替えて、一の前記単一色表示パターンを独立して表示する発光表示パネルにおいて、
    　表示層は、第一表示部材と第二表示部材からなり、
    　第一表示部材は第一基材に設けられた隣接する第一Ａ色透過領域と第一複色透過領域を備え、
    　第二表示部材は第二基材に設けられた隣接する第二Ａ色透過領域と第二複色透過領域を備え、
    　第一Ａ色透過領域は第一Ａ色複色被覆領域と第一Ａ色残余領域からなり、
    　第二複色透過領域が第一複色透過領域の全領域に重なり、かつ、第二複色透過領域が第一Ａ色複色被覆領域に重なり、
    　第二Ａ色透過領域が第一Ａ色残余領域の全領域に重なるように、
    　第一表示部材と第二表示部材が積層配置される発光表示パネル。     A display layer having a plurality of light emitting display patterns;
    The light irradiation means is arranged on the back side of the display layer and irradiates the display layer with light, and the light irradiation means is a light source that emits two colors A and B which are different colors. Have
    The display layer has a single color display pattern formed of a material that can transmit light of a single color in the two colors, for each single color.
    In the light-emitting display panel that switches the light emission color of the light source and displays the single color display pattern independently,
    The display layer includes a first display member and a second display member,
    The first display member includes an adjacent first A color transmission region and a first multicolor transmission region provided on the first base material,
    The second display member includes an adjacent second A color transmission region and a second multicolor transmission region provided on the second base material,
    The first A color transmission area is composed of a first A color multicolor covering area and a first A color residual area,
    The second multicolor transmission area overlaps the entire area of the first multicolor transmission area, and the second multicolor transmission area overlaps the first A color multicolor coverage area,
    The second A color transmission area overlaps the entire area of the first A color residual area.
    A light-emitting display panel in which a first display member and a second display member are stacked.
  2. 　第一表示部材と第二表示部材が積層配置されている状態において、
    第一Ａ色複色被覆領域の幅は０．０３ｍｍ以上０．８ｍｍ以下であることを特徴とする請求項１に記載した発光表示パネル。     In the state where the first display member and the second display member are arranged in a stacked manner,
    2. The light-emitting display panel according to claim 1, wherein the width of the first A-color multicolored coating region is 0.03 mm or more and 0.8 mm or less.
  3. 　前記第一基材と第二基材は同一の基材であり、一方表面に、第一Ａ色透過領域、第一Ｂ色透過領域と第一複色透過領域を備え、他方表面に第二Ａ色透過領域、第二Ｂ色透過領域と第二複色透過領域を備えていることを特徴とする請求項１乃至２いずれかに記載した発光表示パネル。 The first base material and the second base material are the same base material, and have a first A color transmission region, a first B color transmission region and a first multicolor transmission region on one surface, and a second surface on the other surface. The light emitting display panel according to claim 1, further comprising an A color transmission region, a second B color transmission region, and a second multicolor transmission region.
  4. 複数の発光表示パターンを有する表示層と、
    前記表示層の背面側に配置されて前記表示層に光を照射する光照射手段からなり、前記光照射手段は、発光色が互いに異なる２つの色であるＡ色、Ｂ色を発光する光源を有し、
    前記表示層は、前記２色中の単一色の光を透過可能な材料で形成された単一色表示パターンを、各々の単一色についてそれぞれ有しており、
    前記光源の発光色を切り替えて、一の前記単一色表示パターンを独立して表示する発光表示パネルにおいて、
    　表示層は、第一表示部材と第二表示部材からなり、
    　第一表示部材は第一基材に設けられた隣接する第一遮光領域と第一Ａ色透過領域を備え、
    　第二表示部材は第二基材に設けられた隣接する第二遮光領域と第二Ａ色透過領域を備え、
    　第二Ａ色透過領域は第二Ａ色二重領域と第二Ａ色越境領域からなり、
    　第二遮光領域の全領域が第一遮光領域の一部と重なり、第二Ａ色越境領域が第一遮光領域の一部と重なり、第二Ａ色二重領域と第一Ａ色透過領域と重なるように、第一表示部材と第二表示部材が積層配置される発光表示パネル。     A display layer having a plurality of light emitting display patterns;
    The light irradiation means is arranged on the back side of the display layer and irradiates the display layer with light, and the light irradiation means is a light source that emits two colors A and B which are different colors. Have
    The display layer has a single color display pattern formed of a material that can transmit light of a single color in the two colors, for each single color.
    In the light-emitting display panel that switches the light emission color of the light source and displays the single color display pattern independently,
    The display layer includes a first display member and a second display member,
    The first display member includes an adjacent first light shielding region and a first A color transmission region provided on the first base material,
    The second display member includes an adjacent second light shielding region and a second A color transmission region provided on the second base material,
    The second A color transmission region is composed of a second A color double region and a second A color cross-border region,
    The entire area of the second light-shielding area overlaps with a part of the first light-shielding area, the second A-color bordering area overlaps with a part of the first light-shielding area, and the second A-color double area and the first A-color transmissive area A light emitting display panel in which a first display member and a second display member are stacked so as to overlap.
  5. 　第一表示部材と第二表示部材が積層配置されている状態において、
    第二Ａ色越境領域の幅が０．０３ｍｍ以上０．８ｍｍ以下であることを特徴とする請求項４に記載した発光表示パネル。     In the state where the first display member and the second display member are arranged in a stacked manner,
    5. The light-emitting display panel according to claim 4, wherein the width of the second A color boundary region is 0.03 mm or more and 0.8 mm or less.
  6. 前記第一基材と第二基材は同一の基材であり、一方表面に第一遮光領域と第一Ａ色透過領域を備え、他方表面に第二遮光領域と第二Ａ色透過領域を備えていることを特徴とする請求項４に記載した発光表示パネル。 The first base material and the second base material are the same base material, provided with a first light shielding region and a first A color transmission region on one surface, and a second light shielding region and a second A color transmission region on the other surface. The light-emitting display panel according to claim 4, wherein the light-emitting display panel is provided.
PCT/JP2010/000105 2009-01-29 2010-01-12 Light emitting display panel WO2010087106A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002098558A (en) * 2000-09-22 2002-04-05 Calsonic Kansei Corp Manufacturing method of transmitted illumination indicator board
JP2008257054A (en) * 2007-04-06 2008-10-23 Dainippon Printing Co Ltd Variable display structure
JP2008262008A (en) * 2007-04-12 2008-10-30 Nissha Printing Co Ltd Light emission display panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002098558A (en) * 2000-09-22 2002-04-05 Calsonic Kansei Corp Manufacturing method of transmitted illumination indicator board
JP2008257054A (en) * 2007-04-06 2008-10-23 Dainippon Printing Co Ltd Variable display structure
JP2008262008A (en) * 2007-04-12 2008-10-30 Nissha Printing Co Ltd Light emission display panel

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