WO2011105221A1 - Dispositif actif - Google Patents

Dispositif actif Download PDF

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Publication number
WO2011105221A1
WO2011105221A1 PCT/JP2011/052817 JP2011052817W WO2011105221A1 WO 2011105221 A1 WO2011105221 A1 WO 2011105221A1 JP 2011052817 W JP2011052817 W JP 2011052817W WO 2011105221 A1 WO2011105221 A1 WO 2011105221A1
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WO
WIPO (PCT)
Prior art keywords
layer
light
polarized light
color correction
color
Prior art date
Application number
PCT/JP2011/052817
Other languages
English (en)
Japanese (ja)
Inventor
好史 舛本
Original Assignee
アルプス電気株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by アルプス電気株式会社 filed Critical アルプス電気株式会社
Priority to CN2011900003512U priority Critical patent/CN202795286U/zh
Priority to JP2012501732A priority patent/JPWO2011105221A1/ja
Publication of WO2011105221A1 publication Critical patent/WO2011105221A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n

Definitions

  • the present invention relates to an operating device capable of transmitting display light emitted from a liquid crystal panel or the like, and in particular, can improve the function of preventing reflection of external light and correct a change in color due to transmission of display light
  • the operating device which can be
  • a translucent operation panel is installed on the surface of a display panel such as a liquid crystal display panel.
  • the operation panel is a touch panel in which translucent conductive layers having a predetermined resistance value face each other with an air gap therebetween, and when the conductive layers come in contact with each other by a pressing operation force, the contact position can be detected by a change in resistance.
  • the translucent electrodes facing each other face each other and a conductor such as a finger approaches, the capacitance formed between the electrode and the finger is detected to correspond to the operation position. It is a capacitive touch panel that can generate a signal.
  • the touch panels described in Patent Document 1 and Patent Document 2 below are provided with a ⁇ / 4 retardation film and a polarizing film inside the layer structure, and convert light from the outside into linearly polarized light and circularly polarized light.
  • the external light reflected inside the touch panel can be prevented from transmitting through the touch panel and returning again.
  • the polarizing film is formed by adsorbing iodine or a dye to PVA (polyvinyl alcohol) and stretching it in one direction, the polarizing film itself has a yellowish hue. Therefore, when the display light emitted from the display panel is transmitted through the polarizing film, the chromaticity represented by the hue and the saturation is changed, and the display quality is easily deteriorated.
  • PVA polyvinyl alcohol
  • the touch panel described in Patent Document 3 below is provided with a ⁇ / 4 wavelength plate and a polarizing plate so that reflection of light from the outside can be prevented, and the refractive index differs inside the layer structure.
  • a multilayer film having three or more layers is provided, and the multilayer film is intended to offset the influence of the yellowness of the polarizing plate on the display light of the liquid crystal panel.
  • JP 2000-105669 A JP, 2001-142644, A JP 2001-324707 A
  • the peak wavelength of color temperature is set to 550 nm or less by providing a multilayer film of three or more layers having different refractive indexes inside, and the peak wavelength of the touch panel is adjusted in a bluish direction By doing this, it is intended to offset the influence of the yellowing of the polarizing plate.
  • the peak wavelength of the color temperature of the multilayer film must be set in a range that can cancel the yellowing of the actual polarizing plate, such setting is difficult, and it is difficult to efficiently cancel the yellowing of the polarizing plate .
  • the hue can be adjusted, the adjustment of the saturation and the like is substantially impossible.
  • the peak wavelength of the touch panel is adjusted in a bluish direction, the transmittance of light with a wavelength greater than 550 nm will decrease, and the brightness and brightness of the display content of the liquid crystal panel will tend to decrease, and the display quality will decrease. It becomes easy to do.
  • the present invention solves the above-mentioned conventional problems, and for example, by using a color correction layer containing a pigment or a dye, the change in display color influenced by the polarizing layer etc. can be both its hue and saturation. It is an object of the present invention to provide an operating device that can be adjusted in
  • Another object of the present invention is to provide an operating device having a structure that is unlikely to be affected even if light transmitted through the inside of the color correction layer is irregularly reflected or diffused when the color correction layer is used. .
  • a color correction layer for correcting the color of display light transmitted from the substrate to the polarizing layer is disposed on the polarizing layer.
  • the color correction layer contains a pigment or a dye.
  • the operation device of the present invention has the ⁇ / 4 retardation layer and the polarization layer inside, so that it is possible to prevent reflection of incident light from the outside by using linearly polarized light and circularly polarized light. Further, since the change in color due to the presence of the polarizing layer or the like is corrected by the color correction layer, it is possible to correct the chromaticity by adjusting both the hue and the saturation.
  • the color correction layer contains a pigment or a dye, light is likely to be diffusely reflected or diffused therein, and is likely to affect linearly polarized light or circularly polarized light. Therefore, by disposing the color correction layer above the upper polarization layer, the diffuse reflection or diffusion of the color correction layer does not affect the linear polarization and the circular polarization of the display light, and reflection of external light The prevention function is not adversely affected.
  • the detection unit has a gap portion interposed between the lower conductive layer and the upper conductive layer, and the upper conductive layer and the lower conductive layer have an operating force from the outside. It is particularly effective in those in which a detection output can be obtained upon contact.
  • the detection unit having an air gap inside is likely to reflect light from the outside, but by providing a ⁇ / 4 retardation layer and a polarization layer, light from the outside is reflected at the boundary between the air gap and the lower conductive layer Even then, it is possible to prevent the reflected light from returning.
  • the present invention can be practiced even in the case of a layer structure having no air gap inside such as a capacitive type panel. Also in this case, it is easy to prevent the reflection of light by the layer boundary inside the panel.
  • the detection unit may be a switch panel in which the lower conductive layer and the upper conductive layer are in contact with each other to switch ON / OFF.
  • the present invention can be configured such that the substrate is disposed on a display panel that outputs linearly polarized display light, and the direction of polarization of the display light matches the direction of the transmission axis of the polarizing layer. .
  • a translucent cover layer operated from the outside is provided further on the color correction layer, and the color correction layer is an adhesive layer or an adhesive layer containing the pigment or the dye. It is preferable that the polarizing layer and the cover layer be bonded with the color correction layer interposed therebetween.
  • the layer structure of the operation device can be reduced, and it is easy to realize thinning.
  • the cover layer may be provided with a colored layer on a part thereof.
  • the color design of the cover layer coloring layer is determined as a standard color regardless of the color correction. Will be able to
  • the operating device of the present invention can easily prevent the reflection of external light by using linearly polarized light and circularly polarized light. In addition, it is possible to correct the change in the chromaticity of display light due to the presence of a polarizing layer or the like in both the hue and saturation elements. Moreover, the influence of diffuse reflection inside the color correction layer can also be suppressed.
  • FIG. 1 An exploded perspective view of a portable device on which the operation device according to the embodiment of the present invention is mounted; Sectional drawing which shows the operating device of embodiment of this invention, Sectional drawing which shows the operating device of the comparative example 1. Sectional drawing which shows the operating device of the comparative example 2. Operation explanatory diagram of detection unit,
  • the mobile device 1 shown in FIG. 1 is used as a mobile phone, a portable information processing device, a portable storage device, a portable game device or the like.
  • the portable device 1 has a case 2 made of synthetic resin.
  • the case 2 has a recess 3 whose upper side is open, and a circuit board on which an electronic circuit is mounted is accommodated in the recess 3. Further, the liquid crystal display panel 30 is housed inside the recess 3. The opening of the recess 3 is closed by an operation panel 10 which is an embodiment of the operation device of the present invention.
  • liquid crystal display panel 30 and the operation panel 10 are illustrated as being vertically separated in the cross-sectional view of FIG. 2, in the case 2, the liquid crystal display panel 30 and the operation panel 10 are in close contact with each other. .
  • the liquid crystal display panel 30 has a light guide substrate 31 at the lower part.
  • the light guide substrate 31 is formed of a transparent translucent resin.
  • the translucent resin is, for example, PMMA (methyl methacrylate resin), PC (polycarbonate), COP (cyclic olefin copolymer) or the like.
  • a light source such as an LED is provided inside the case 2, and the light guide substrate 31 and the light source constitute a backlight device. The light emitted from the light source is guided to the inside of the light guide substrate 31, diffusedly reflected by the bottom of the light guide substrate 31, etc., and directed upward.
  • Translucency in the present specification means a state capable of transmitting light, such as transparent or semitransparent, and means that the total light transmittance is 50% or more and preferably 80% or more.
  • the polarizing film 32 is disposed on the light guide substrate 31, and the lower electrode substrate 33 is fixed thereon.
  • the light guide substrate 31 and the polarizing film 32 are fixed via the light transmitting adhesive layer, and the polarizing film 32 and the lower electrode substrate 33 are also fixed via the light transmitting adhesive layer.
  • a lower electrode 34 and an alignment film 35 are provided on the upper surface of the lower electrode substrate 33.
  • the upper electrode substrate 36 faces the upper side, and the upper electrode 37 and the alignment film 38 are provided on the downward surface of the upper electrode substrate 36.
  • a spacer is interposed between the lower electrode substrate 33 and the upper electrode substrate 36, and the lower electrode substrate 33 and the upper electrode substrate 36 face each other at a constant distance.
  • the liquid crystal layer 39 is interposed between the lower electrode substrate 33 and the upper electrode substrate 36.
  • the lower electrode substrate 33 and the upper electrode substrate 36 are both translucent, and are formed of a glass plate or a transparent synthetic resin film.
  • the lower electrode 34 and the upper electrode 37 are transparent electrode layers formed of ITO or the like.
  • the lower electrode 34 and the upper electrode 37 both extend in parallel, one extending in the X direction and the other extending in the Y direction.
  • a polarizing film 41 is provided on the upper electrode substrate 36.
  • the upper electrode substrate 36 and the polarizing film 41 are fixed via a transparent adhesive layer.
  • the directions of the absorption axis and the transmission axis of the lower polarizing film 32 and the directions of the absorption axis and the transmission axis of the upper polarizing film 41 are determined in accordance with the twist angle of the liquid crystal layer 36.
  • the upper electrode substrate 36 is a color filter substrate, and color display is performed on the liquid crystal display panel 30 by controlling energization to the pixels at the intersections of the lower electrode 34 and the upper electrode 37.
  • the light emitted from the light guide substrate 31 of the backlight device is transmitted through the liquid crystal display panel 30, so that display light of color display and linearly polarized light is emitted upward.
  • the operation panel 10 has a support substrate 11.
  • the support substrate 11 is formed of a translucent resin such as PMMA (methyl methacrylate resin), PC (polycarbonate), COP (cyclic olefin copolymer) or the like.
  • the support substrate 11 is a glass substrate.
  • the ⁇ / 4 retardation film 13 which is a ⁇ / 4 retardation layer is bonded on the supporting substrate 11 via the light transmitting adhesive layer 12, and the upward surface of the ⁇ / 4 retardation film 13 is A translucent lower conductive layer 14 such as ITO is formed.
  • a ⁇ / 4 retardation film 15 is provided thereon, and a translucent upper conductive layer 16 such as ITO is formed on the downward surface of the ⁇ / 4 retardation film 15.
  • the lower ⁇ / 4 retardation film 13 and the upper ⁇ / 4 retardation film 15 are opposed to each other with a space between the upper and lower adhesive layers 17 interposed between the lower and upper conductive layers 14 as spacers.
  • An air gap 18 is formed between the conductive layer 16 and the conductive layer 16.
  • ⁇ / 4 retardation film In the ⁇ / 4 retardation film, incident light is separated into two orthogonal linear polarization components by birefringence, and a phase shift of 1 ⁇ 4 wavelength is given to the two linear polarization components.
  • the optical axis of the ⁇ / 4 retardation film When the optical axis of the ⁇ / 4 retardation film is disposed at an angle of 45 ° or 135 ° with respect to the transmission axis of the polarizing film, linearly polarized light transmitted through the polarizing film passes through the ⁇ / 4 retardation film. Is converted to circularly polarized light, and this circularly polarized light is converted back to linearly polarized light by passing through the ⁇ / 4 retardation film.
  • a polarizing film 21 which is a polarizing layer is superimposed via a light transmitting adhesive layer 19.
  • the polarizing film 21 provided on the operation panel 10 and the polarizing films 32 and 41 provided on the liquid crystal display panel 30 stretch a film of polyvinyl alcohol (PVA) resin adsorbed with iodine and a dye in one direction, The film is constructed by sandwiching both sides of the film with a protective film of triacetyl acetate (TAC). Although this kind of polarizing films 21 32 and 41 are translucent, the hue is slightly yellowish.
  • PVA polyvinyl alcohol
  • TAC triacetyl acetate
  • the directions of the absorption axis and the transmission axis are the same.
  • a cover sheet 23 which is a cover layer is fixed to the surface of the polarizing film 21 via the color correction layer 22.
  • the color correction layer 22 is an adhesive layer mainly composed of an acrylic adhesive, and the polarizing film 21 and the cover sheet 23 are joined by the color correction layer 22.
  • the color correction layer By using the color correction layer as the adhesive layer, it is possible to add the color correction layer without increasing the number of layers constituting the operation panel 10.
  • the pressure-sensitive adhesive layer and the pressure-sensitive adhesive in the present specification are those capable of fixing two films by their own tack force, and are distinguished from an adhesive or an adhesive layer whose state cures from liquid to solid. However, it is also possible to replace various adhesive layers such as the color correction layer 22 and the adhesive layers 12 and 19 with the adhesive layer.
  • the color correction layer 22 contains a pigment or a dye, and is emitted from the light guide substrate 31 of the backlight device by the color correction layer 22, passes through the liquid crystal display panel 30, and is polarized from the support substrate 11 of the operation panel 10. Deviation of the chromaticity of the display light transmitted through the film 21 is corrected.
  • Deviation of chromaticity by the color correction layer 22 is adjusted by the selection of the type of pigment or dye and the selection of its addition amount.
  • a standard light source is used instead of the backlight having the light guide substrate 31, and standard light is transmitted from the support substrate 11 of the liquid crystal display panel 30 and the operation panel 10 to the polarizing film 21 and transmitted.
  • the measured chromaticity and the chromaticity of the standard color of the standard light source are applied to the chromaticity diagram of the XYZ color system.
  • the hue for correcting the difference between the measured chromaticity and the chromaticity of the standard color is determined on the chromaticity diagram, and the saturation for correcting to the standard color is determined.
  • the hue of the pigment or dye is selected in accordance with the determined hue for correction, and this is added to the color correction layer 22. Further, by changing the amount of the pigment or dye added to the color correction layer 22, the chromaticity including the saturation is corrected.
  • the color correction layer 22 As described above, by constituting the color correction layer 22 as a layer containing a pigment or a dye, the deviation of the chromaticity of the display light having passed through the polarizing film and the other layers is strictly corrected in both the hue and the saturation. It will be possible to
  • the cover sheet 23 is formed of a transparent resin sheet such as polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • a central square area is a display area 10a, and a frame 10b is colored around it.
  • a colored layer 24 corresponding to the frame portion 10 b is formed on the downward surface of the cover sheet 23.
  • the colored layer 24 is formed by means such as printing or painting or sputtering.
  • the display content of the liquid crystal display panel 30 can be viewed through the display area 10 a of the operation panel 10.
  • the frame portion 10 b is decorated by the color of the colored layer 24.
  • FIG. 2 shows a path of color display light emitted from the light guide substrate 31 and transmitted through the liquid crystal display panel 30 and the operation panel 10, and (B) shows a path of outside light entering the operation panel 10 from the outside. Is shown.
  • the illumination light (1) emitted from the light guide substrate 31 passes through the liquid crystal layer 39 of the liquid crystal display panel 30 and the upper electrode substrate 36 which is a color filter substrate. It becomes light.
  • the color display light emitted from the liquid crystal display panel 30 is linearly polarized light (2) transmitted through the two polarizing films 32 and 41.
  • linearly polarized light (2) passes through the lower ⁇ / 4 retardation film 13 to become circularly polarized light (3), and passes through the upper ⁇ / 4 retardation film 15 to pass linearly polarized light (3).
  • the polarizing film 41 on the upper side of the liquid crystal display panel 30 and the polarizing film 21 of the operation panel 10 have the same direction of the transmission axis, so the color display light is given upward as linearly polarized light (5) with little loss.
  • the color display light following the path (A) becomes yellowish by transmitting through the three polarizing films 32, 41 and 21, and the chromaticity shifts from the original color display light by transmitting through the other layers. . As described above, this chromaticity shift is corrected by the color correction layer 22.
  • the color correction layer 22 contains a pigment or dye inside the adhesive, and the hue and saturation of the color display light can be corrected by selecting the type of the pigment or dye and adjusting the addition amount thereof. It is. On the other hand, light transmitted through the color correction layer 22 is likely to be diffusely reflected or diffused therein.
  • the color display light transmitted between the polarizing film 41 of the liquid crystal display panel 30 and the polarizing film 21 of the operation panel 10 is linearly polarized light or circularly polarized light. Therefore, if the color correction layer 22 is between the polarizing film 41 and the polarizing film 21, the polarization is disturbed by diffuse reflection or diffusion of light.
  • the polarized light between the polarizing film 41 and the polarizing film 21 can be diffusely reflected or diffused by the color correction layer. Not to be affected by
  • the color display light has been subjected to color correction when it is transmitted through the color correction layer 22. Therefore, the color display light transmitted through the cover sheet 23 is light of excellent display quality without deviation in chromaticity. Therefore, it is possible to perform color display with high quality and less influence by the reflected light through the display area 10 a of the operation panel 10. Further, in the frame portion 10b, it is possible to express the decoration of the color represented by the colored layer 24 without deviation of the chromaticity.
  • the cover sheet 23 may be mixed with a pigment or a dye to function as a color correction layer.
  • the decorative color of the frame portion 10b is mixed with the color by the pigment or the dye, it is necessary to set the chromaticity of the colored layer 24 constituting the frame portion 10b to be offset with the chromaticity by the pigment or the dye become.
  • the lower conductive layer 14 and the upper conductive layer 16 constituting the detection unit have a predetermined electric resistance.
  • X electrode layers 14a and 14b formed of silver paste or the like having a specific resistance smaller than that of the lower conductive layer 14 are provided at both ends of the lower conductive layer 14 in the X direction.
  • Y electrode layers 16 a and 16 b having a smaller specific resistance than the upper electrode layer 16 are provided.
  • a voltage is applied between the X electrode layer 14a and the X electrode layer 14b, and a voltage is applied between the Y electrode layer 16a and the Y electrode layer 16b at another timing.
  • the upper ⁇ / 4 retardation film 15 to the cover sheet 23 are flexible, and when the surface of the cover sheet 23 is pressed with a finger or the like, the upper conductive layer 16 and the lower conductive layer 14 partially contact with each other. .
  • the contact point is indicated by P in FIG.
  • a voltage corresponding to the resistance value obtained by dividing lower conductive layer 14 in the X direction is detected from Y electrode layers 16a and 16b, and a voltage corresponding to the resistance value obtained by dividing upper conductive layer 16 in the Y direction is the X electrode layer It is detected from 14a and 14b. Thereby, the position of the point P on the XY coordinates is detected.
  • FIG. 3 shows an operation panel 110 of Comparative Example 1
  • FIG. 4 shows an operation panel 210 of Comparative Example 2.
  • the structure of the liquid crystal display panel 30 shown in FIGS. 3 and 4 is the same as that of the liquid crystal display panel 30 shown in FIG.
  • the operation panel 110 of the comparative example 1 and the operation panel 210 of the comparative example 2 the same components as those of the operation panel 10 shown in FIG.
  • the adhesive layer 122 between the polarizing film 21 and the cover sheet 23 does not contain a pigment or a dye, and does not have a function of a color correction layer. Instead, a pigment or dye is mixed into the support substrate 111 of the operation panel 110, and the support substrate 111 has a function as a color correction layer.
  • the adhesive layer 122 between the polarizing film 21 and the cover sheet 23 does not contain a pigment or a dye as in the operation panel 110, and the function of the color correction layer I do not have
  • the support substrate 11 also contains no pigment or dye and does not function as a color correction layer.
  • the adhesive layer 219 between the upper ⁇ / 4 retardation film 15 and the polarizing film 21 contains a pigment or a dye, and this adhesive layer 219 functions as a color correction layer.
  • Table 1 below shows the results of comparing the functions of the operation panel 10 of the embodiment shown in FIG. 2, the operation panel 110 of Comparative Example 1 shown in FIG. 3, and the operation panel 210 of Comparative Example 2 shown in FIG. Is shown.
  • the operation panel 10 and the operation panels 110 and 210 of the comparative example each use a color correction layer containing a pigment or a dye.
  • the color correction layer can basically adjust the chromaticity by adjusting the type and amount of the pigment or dye.
  • the support substrate 111 functioning as a color correction layer is located between the polarizing film 41 and the ⁇ / 4 retardation film 13. Therefore, the polarization state of the color display light linearly polarized by the polarizing film 41 is irregularly reflected or diffused in the support substrate 111. Therefore, disturbance occurs in circularly polarized light passing through the ⁇ / 4 retardation film 13 and linearly polarized light passing through the upper ⁇ / 4 retardation film 15. Therefore, the amount of light passing through the upper polarizing film 21 is reduced, and the contrast of color display is reduced.
  • the adhesive layer 219 functioning as a color correction layer is located between the ⁇ / 4 retardation film 15 on the upper side and the polarizing film 21. Therefore, the linearly polarized light of the color display light transmitted through the upper ⁇ / 4 retardation film 15 is irregularly reflected or diffused, and the amount of light transmitted through the upper polarizing film 21 is reduced, so that the contrast of the color display is lowered.
  • the operation panel 210 of Comparative Example 2 after light from the outside incident on the operation panel 210 through the cover sheet 23 passes through the polarizing film 21 and becomes linearly polarized, an adhesive layer 219 containing a pigment or a dye Diffusely reflected or diffused inside. Furthermore, the circularly polarized light reflected at the boundary between the air gap 18 and the lower conductive layer 14 is irregularly reflected or diffused in the adhesive layer 219 even after passing through the ⁇ / 4 retardation film 15 and becoming linearly polarized light. Ru. Therefore, the component directed to the transmission axis of the polarizing film 21 is included in the linearly polarized light of the reflected light, and the reflection preventing effect of the external light is reduced.
  • control panel 110 shown in FIG. 3 is manufactured compared to the color correction layer 22 in which the adhesive layer contains the pigment or dye as shown in FIG. 2 because the support substrate 111 contains the pigment or dye.
  • the cost is high.
  • Table 1 below the respective defect items of Comparative Example 1 and Comparative Example 2 are indicated by “x” marks.
  • a resistance detection type touch panel in which the lower conductive layer 14 and the upper conductive layer 16 are opposed via the air gap 18 as a detection unit is configured, but the detection unit is pressed from above At this time, the upper conductive layer 16 and the lower conductive layer 14 may be in contact with each other, and the plurality of ON-OFF switches may be arranged.
  • the detection unit may be a capacitive coordinate detection device.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Polarising Elements (AREA)
  • Position Input By Displaying (AREA)

Abstract

L'invention porte sur un dispositif actif qui permet d'empêcher une réflexion interne de lumière provenant de l'extérieur, et même de corriger un déplacement de chrominance de lumière d'affichage provenant d'un panneau d'affichage. De la lumière polarisée linéairement (2), provenant d'un panneau d'affichage à cristaux liquides (30), est convertie en lumière polarisée circulairement (3) au niveau d'un film à différence de phase de λ/4 (13), convertie en lumière polarisée linéairement (4) au niveau d'un film à différence de phase de λ/4 (15) d'un côté supérieur, puis est transmise à travers un film polarisant (21). De la lumière entrant de l'extérieur est convertie en lumière polarisée circulairement (8) au niveau du film à différence de phase de λ/4 (15) du côté supérieur, est réfléchie au niveau d'une couche conductrice de partie inférieure (14), ce par quoi le sens de rotation de la lumière polarisée circulairement est inversé, et passe à travers le film à différence de phase de λ/4 (15) du côté supérieur pour devenir de la lumière polarisée linéairement (10). L'axe optique de la lumière polarisée linéairement (10) est perpendiculaire à l'axe de transmission du film polarisant (21), ce par quoi la lumière polarisée linéairement (10) ne peut pas retourner vers l'extérieur. Une couche de correction de couleur (22) contenant un pigment ou un colorant est placée sur un côté plus externe que le film polarisant (21). En choisissant le pigment ou le colorant et en ajustant sa quantité, même si le film polarisant a une incidence sur la lumière d'affichage en couleur, il est possible d'en corriger la chrominance.
PCT/JP2011/052817 2010-02-24 2011-02-10 Dispositif actif WO2011105221A1 (fr)

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CN2011900003512U CN202795286U (zh) 2010-02-24 2011-02-10 操作装置
JP2012501732A JPWO2011105221A1 (ja) 2010-02-24 2011-02-10 操作装置

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JP2010-038929 2010-02-24
JP2010038929 2010-02-24

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JP2013156975A (ja) * 2012-01-30 2013-08-15 Samsung Display Co Ltd タッチパネル及びタッチパネルを含む表示装置
JP2014052479A (ja) * 2012-09-06 2014-03-20 Calsonic Kansei Corp タッチディスプレイ構造
US9128578B2 (en) 2011-12-28 2015-09-08 Nissha Printing Co., Ltd. Capacitive type touch sensor with optical functionality
JPWO2014167815A1 (ja) * 2013-04-10 2017-02-16 日本ゼオン株式会社 静電容量式タッチパネル付き表示装置
TWI690735B (zh) * 2016-09-02 2020-04-11 日商日東電工股份有限公司 光學構件

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