WO2020230671A1 - Light-emitting touch panel - Google Patents

Light-emitting touch panel Download PDF

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Publication number
WO2020230671A1
WO2020230671A1 PCT/JP2020/018430 JP2020018430W WO2020230671A1 WO 2020230671 A1 WO2020230671 A1 WO 2020230671A1 JP 2020018430 W JP2020018430 W JP 2020018430W WO 2020230671 A1 WO2020230671 A1 WO 2020230671A1
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WO
WIPO (PCT)
Prior art keywords
electrode
layer
oled
touch panel
light emitting
Prior art date
Application number
PCT/JP2020/018430
Other languages
French (fr)
Japanese (ja)
Inventor
木田　芳利
Original Assignee
株式会社ピクトリープ
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Filing date
Publication date
Application filed by 株式会社ピクトリープ filed Critical 株式会社ピクトリープ
Publication of WO2020230671A1 publication Critical patent/WO2020230671A1/en

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    • 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
    • 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
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

Definitions

  • the present invention relates to a light emitting touch panel, and more particularly to a touch panel structure that detects a contact position of a user's finger or the like and has a light emitting function.
  • Touch panel displays are widely used in information processing devices such as computers.
  • the touch panel display is provided with a touch sensor that detects the position where the operator's finger touches on the display screen of the liquid crystal display (LCD).
  • LCD liquid crystal display
  • a front light is provided as a plate-shaped light source in front of the reflective LCD (display screen side). Further, a plate-shaped touch sensor is provided in front of the front light.
  • the display screen of the reflective LCD is brightly illuminated by the light radiated backward from the front light.
  • the touch sensor and front light are made of a material that transmits light so that the display screen of the LCD can be seen by the user. The user visually recognizes the display screen brightly illuminated by the front light and operates the information processing device by touching the touch sensor.
  • Some touch panel displays have a touch panel and a front light formed independently. Such a touch panel display has a problem that the structure and the manufacturing process become complicated. Therefore, as described in Patent Document 1 below, a touch panel display in which the electrodes for the touch panel and the electrodes for the front light are shared has been proposed.
  • An object of the present invention is to simplify the structure of a light emitting touch panel having a light source such as a front light and to facilitate control.
  • the present invention provides a first electrode layer provided with a linear touch first electrode, a linear OLED first electrode arranged in the touch first electrode in the same stretching direction, and the first electrode.
  • An insulating layer adjacent to the rear of the layer an OLED layer adjacent to the rear of the insulating layer, a first contact hole penetrating the insulating layer and located between the OLED first electrode and the OLED layer, and A second electrode layer adjacent to the rear of the OLED layer, which is arranged with the linear touch second electrode intersecting the touch first electrode and the touch second electrode in the same stretching direction, and the OLED layer. It is characterized by including an OLED second electrode in contact with the second electrode, and a second electrode layer provided with the OLED second electrode.
  • the touch first electrode and the OLED first electrode are formed of a mesh-like conductor.
  • the first electrode layer is provided in the gap between the touch first electrode and the OLED first electrode, and is linearly arranged side by side with the touch first electrode and the OLED first electrode in the same stretching direction.
  • the dummy electrode is provided, and the dummy electrode is formed of a mesh-like conductor.
  • the ribs are provided so as to project toward the second electrode layer from the insulating layer and insulate the touch second electrode from other regions.
  • the linear touch first electrode, the linear OLED first electrode arranged in the touch first electrode in the same stretching direction, and the linear OLED first electrode arranged in the stretching direction in the same stretching direction are arranged in the OLED first electrode.
  • a wiring electrode having a region facing the OLED first electrode and the OLED second electrode, and a linear touch second electrode that intersects the touch first electrode with the OLED layer and the insulating layer interposed therebetween. It is characterized by including a second electrode layer including the above, and a second contact hole penetrating the insulating layer and located between the wiring electrode and the OLED second electrode.
  • the touch first electrode, the OLED first electrode, and the OLED second electrode are formed of a mesh-like conductor.
  • the first electrode layer is provided in the gap between the touch first electrode, the OLED first electrode, and the OLED second electrode, and the touch first electrode, the OLED first electrode, and the OLED first electrode are arranged in the same stretching direction.
  • a linear additional electrode arranged side by side with the OLED second electrode is provided, and the light emitting touch panel penetrates the insulating layer and has a touch electrode contact hole located between the touch second electrode and the additional electrode. Be prepared.
  • a rib that protrudes toward the second electrode layer from the insulating layer and insulates the touch second electrode and another region, or insulates the wiring electrode and another region.
  • the first electrode layer is adjacent to the rear of the reflective layer, and the OLED first electrode overlaps the reflective layer.
  • the structure of a light emitting touch panel having a light source can be simplified and control can be facilitated.
  • the light emitting touch panel according to each embodiment of the present invention will be described with reference to each figure.
  • the direction from the light emitting touch panel toward the user is the front, and the direction in which the light is emitted from the light emitting touch panel is the rear.
  • the terms used in the present specification to indicate front-back, left-right, up-down are for convenience of explaining the structure, and do not limit the posture when using the light-emitting touch panel.
  • common components shown in a plurality of drawings are designated by the same reference numerals and the description thereof will be omitted.
  • FIG. 1 schematically shows a cross section of a light emitting touch panel according to the first embodiment.
  • the upper direction of the figure corresponds to the front direction when the user side is viewed from the optical touch panel, and the lower direction corresponds to the rear direction of the light emitting touch panel.
  • the light emitting unit 10 shown on the left side of FIG. 1 functions as a light source, and the sensor unit 12 shown on the right side functions as a touch sensor.
  • the cross section drawn is different between the light emitting unit 10 and the sensor unit 12.
  • the light emitting touch panel includes a base material 14, a reflective layer 16, a cathode 18, an insulating layer 20, a cathode contact hole 40, an OLED layer 22 (Organic Light Emitting Diode), an anode 24, and a protective film 26.
  • the base material 14 is made of a material that transmits light.
  • a reflective layer 16 made of a material that does not transmit light is provided behind the base material 14.
  • Behind the reflective layer 16 a cathode 18 formed of a conductive material that transmits light (light-transmitting conductive material) is provided.
  • ITO Indium Tin Oxide
  • An insulating layer 20 is provided behind the base material 14 and the cathode 18.
  • An OLED layer 22 is provided behind the insulating layer 20.
  • the contact hole is a hole filled with a material for forming the OLED layer, and is formed together with the OLED layer 22.
  • the OLED layer 22 is made of an organic material that emits light when an electric current flows through it.
  • Behind the OLED layer 22, an anode 24 formed of a light-transmitting conductive material is provided.
  • Behind the anode 24 is a protective film 26 made of a material that transmits light.
  • the RX electrode 28 is provided on a layer formed in the same process as the cathode 18 in the light emitting unit 10. Further, the TX electrode 30 is provided on the layer formed in the same process as the anode 24 in the light emitting unit 10.
  • the RX electrode 28 and the TX electrode 30 are made of a light-transmitting conductive material and are formed in a band shape. ITO may be used as the light-transmitting conductive material.
  • the TX electrode 30 extends in the left-right direction, and the RX electrode 28 intersects the TX electrode 30 with the OLED layer 22 and the insulating layer 20 interposed therebetween.
  • FIG. 2 shows a diagram illustrating the principle of the touch sensor incorporated in the light emitting touch panel.
  • the touch sensor includes a plurality of TX electrodes 30 formed in a band shape and extending in the left-right direction, and a plurality of RX electrodes 28 formed in a band shape and extending in the vertical direction.
  • the plurality of TX electrodes 30 are arranged in the vertical direction with the directions aligned, and the plurality of RX electrodes 28 are arranged in the horizontal direction with the directions aligned.
  • Each RX electrode 28 intersects each TX electrode 30 with a space.
  • the control circuit (not shown) of the light emitting touch panel detects the position where the user's finger approaches or touches on the touch panel by the following operation.
  • the control circuit applies a pulse voltage having a pulsed time waveform to the plurality of TX electrodes 30 in order from the top.
  • the control circuit measures the voltage generated in each RX electrode 28 and detects the capacitance between the TX electrode 30 to which the pulse voltage is applied and each RX electrode 28.
  • the control circuit uses the capacitance at each intersection in the absence of the user's finger as a reference value, and monitors the amount of change with respect to the reference value for each intersection to detect the position where the user's finger approaches or touches on the touch panel. To do.
  • 3A to 3D show the structure of the light emitting touch panel according to the first embodiment according to the state in each manufacturing process. These figures show a part of the optical touch panel. In reality, it spreads vertically and horizontally so that the same structure as this part is repeated.
  • a reflective layer 16 is provided on the rear surface of the base material 14.
  • the reflective layer 16 occupies a region on the rear surface of the base material 14 on which light is reflected.
  • four reflective layers 16 are shown.
  • Cathodes 181 and 182 extending up and down in a strip shape are provided on the rear surfaces of the base material 14 and the reflective layer 16. That is, a strip-shaped cathode 181 extending in the vertical direction is provided on the rear surface of the two reflective layers 16 and the base material 14 arranged vertically on the left side. Similarly, a strip-shaped cathode 182 extending vertically in a strip shape is provided on the rear surface of the two reflective layers 16 and the base material 14 arranged vertically on the right side.
  • a band-shaped RX electrode 28 extending in the vertical direction is provided so as to align the stretching direction with these cathodes.
  • an insulating layer 20 is provided behind the cathode 181 and the cathode 182, and the base material 14.
  • an OLED layer 22 is provided behind the insulating layer 20.
  • Cathode contact holes 401 and 402 penetrating the insulating layer 20 are formed at positions of the cathode 181 corresponding to the two reflective layers 16 arranged one above the other.
  • Cathode contact holes 403 and 404 penetrating the insulating layer 20 are formed at positions of the cathode 182 corresponding to the two reflective layers 16 arranged one above the other.
  • the cathode contact holes 401 to 404 are formed at the same time as the OLED layer 22 is formed.
  • an anode 241 and a TX electrode 30 and an anode 242 are provided behind the OLED layer 22.
  • Each of the anode 241 and the TX electrode 30 and the anode 242 is formed in a band shape and extends in the left-right direction.
  • the anode 241 and the TX electrode 30 and the anode 242 are arranged in the same stretching direction, and the TX electrode 30 is provided between the anode 241 and the anode 242.
  • the anodes 241 and 242 come into contact with the rear surface of the OLED layer 22.
  • a protective film is provided at the rear end of the light emitting touch panel.
  • the light emitting touch panel according to the present embodiment includes the reflective layer 16 forming the reflective portion and the following first electrode layer adjacent to the rear of the reflective layer 16. That is, the first electrode layer is arranged on the RX electrode 28 as the linear (band-shaped) touch first electrode and the RX electrode 28 in the same stretching direction, and the linear (band-shaped) OLED th. It is a layer provided with cathodes 181 and 182 as one electrode. Further, the light emitting touch panel according to the present embodiment includes an insulating layer 20 adjacent to the rear of the first electrode layer and an OLED layer 22 adjacent to the rear of the insulating layer 20.
  • the light emitting touch panel according to the present embodiment has the cathode contact holes 401 and 402 as the first contact holes located between the cathode 181 and the OLED layer 22 through the insulating layer 20, and the cathode 182 and the OLED layer. It includes cathode contact holes 403 and 404 as first contact holes located between 22 and 22.
  • the light emitting touch panel according to the present embodiment includes the following second electrode layer adjacent to the rear of the OLED layer 22. That is, the second electrode layer is arranged with the TX electrode 30 as the linear (band-shaped) touch second electrode intersecting the RX electrode 28 and the TX electrode 30 in the same stretching direction, and is in contact with the OLED layer 22. It is a layer provided with anodes 241 and 242 as second electrodes.
  • linear mentioned above means a shape extending in a specific direction, and the shape includes a band shape having a width in a direction intersecting the stretching direction.
  • the cathode 181 is connected to the OLED layer 22 via the cathode contact holes 401 and 402, and the cathode 182 is connected to the OLED layer 22 via the cathode contact holes 403 and 404. Further, the anodes 241 and 242 come into contact with the rear surface of the OLED layer 22.
  • the cathode and the RX electrode are formed in the same layer, the structure and manufacturing process of the light emitting touch panel are simplified. Further, the cathode and anode, which are electrodes for causing the light emitting touch panel to emit light, and the RX electrode and TX electrode constituting the touch sensor are formed independently. Therefore, the control for emitting the light emitting touch panel and the control for operating the touch sensor can be made independent, and the control becomes easy.
  • FIGS. 4A to 4D show the structure of the light emitting touch panel according to the second embodiment according to the state in each manufacturing process.
  • the light emitting touch panel according to the second embodiment is obtained by forming the RX electrodes 28, cathodes 181 and 182, which were formed by ITO or the like in the first embodiment, with a mesh-shaped metal. By using the mesh-shaped metal, the RX electrode 28 and each cathode (181, 182) have low resistance and light transmission is realized.
  • a dummy electrode 42 is provided in the gap between the cathode 181 and the RX electrode 28 so as to be aligned with the cathode 181 and the RX electrode 28 in the extending direction.
  • a dummy electrode 42 that is aligned with the cathode 181 and the RX electrode 28 in the stretching direction is provided.
  • a dummy electrode 42 may also be provided in the gap between the other cathode and the RX electrode 28.
  • the dummy electrode 42 may not be connected to another conductor, and the potential may be suspended.
  • a protective film is provided at the rear end of the light emitting touch panel.
  • the cathode By forming the cathode with a mesh-like metal in this way, the light transmission of the cathode is ensured and the resistance value of the cathode is reduced. This improves the sensitivity of the touch sensor. Further, by using the dummy electrode 42 made of mesh-shaped metal, the light transmission becomes uniform, and the visibility of the reflective LCD provided at the rear is improved.
  • 5A to 5D show the structure of the light emitting touch panel according to the third embodiment according to the state in each manufacturing process.
  • the anodes 241 and 242 are provided on the same layer as the layer on which the cathodes 181 and 182 are provided.
  • 5A to 5D show an example in which each cathode (181, 182), each anode (241, 242), and each dummy electrode 42 are made of a mesh-like metal. It may be made of a light-transmitting conductive material. In this case, the dummy electrode 42 may not be provided.
  • a band-shaped RX electrode 28 extending in the vertical direction is provided so as to align the stretching direction with these cathodes. Be done. Further, in the region between the cathode 181 and the RX electrode 28, the anode 241 is provided so as to align the stretching direction with the cathode 181 and the RX electrode 28. Further, in the region between the cathode 182 and the RX electrode 28, the anode 242 is provided so as to align the stretching direction with the cathode 182 and the RX electrode 28.
  • a band-shaped dummy electrode 42 is provided so as to align the stretching direction with the anode 241 and the RX electrode 28.
  • a band-shaped dummy electrode 42 is provided so as to align the stretching direction with the anode 242 and the RX electrode 28.
  • an insulating layer 20 is provided behind the cathode 181 and the cathode 182, the RX electrode 28, the anode 241, the anode 242, and the dummy electrode 42.
  • an OLED layer 22 is provided behind the insulating layer 20.
  • Anode contact holes 441 and 442 penetrating the insulating layer 20 are formed at two positions above and below the anode 241.
  • Anode contact holes 443 and 444 penetrating the insulating layer 20 are formed at two positions above and below the anode 242.
  • a wiring electrode 461 that connects the region of the OLED layer 22 facing the cathode 181 and the anode contact hole 441 is provided. Further, a wiring electrode 462 for connecting the region of the OLED layer 22 facing the cathode 181 and the anode contact hole 442 is provided. Further, a wiring electrode 463 for connecting the region of the OLED layer 22 facing the cathode 182 and the anode contact hole 443 is provided. Further, a wiring electrode 464 for connecting the region of the OLED layer 22 facing the cathode 182 and the anode contact hole 444 is provided.
  • a strip-shaped region extending in the lateral direction is formed.
  • the TX electrode 30 is provided.
  • the wiring electrodes 461 to 464 and the TX electrode 30 may be made of a light-transmitting conductive material.
  • a protective film is provided at the rear end of the light emitting touch panel.
  • the light emitting touch panel includes the reflective layer 16 forming the reflective portion and the following first electrode layer adjacent to the rear of the reflective layer 16. That is, the first electrode layer is arranged on the RX electrode 28 as the linear (band-shaped) touch first electrode and the RX electrode 28 in the same stretching direction, and the linear (belt-shaped) OLED th. It is a layer provided with cathodes 181 and 182 as one electrode and anodes 241 and 242 as second electrodes of linear (band-shaped) OLEDs arranged on the cathodes 181 and 182 in the same stretching direction.
  • the light emitting touch panel according to the present embodiment includes an insulating layer 20 adjacent to the rear of the first electrode layer and an OLED layer 22 adjacent to the rear of the insulating layer 20. Further, the light emitting touch panel according to the present embodiment has cathode contact holes 401 and 402 as first contact holes located between the cathode 181 and the OLED layer 22 through the insulating layer 20, and the cathode 182 and the OLED layer 22. It is provided with cathode contact holes 403 and 404 as first contact holes located between and. Further, the optical touch panel according to the embodiment of the present invention includes the following second electrode layer adjacent to the rear of the OLED layer 22.
  • the second electrode layer sandwiches the OLED layer 22 and the insulating layer 20, the wiring electrodes 461 and 462 having regions facing the cathode 181 and the anode 241 and the OLED layer 22 and the insulating layer 20, and the cathode 182.
  • a wiring electrode 463 and 464 having a region facing the anode 242 and a TX electrode 30 as a linear (band-shaped) touch second electrode intersecting the RX electrode 28 with the OLED layer 22 and the insulating layer 20 interposed therebetween are provided. It is a layered layer.
  • the light emitting touch panel has the anode contact holes 441 and 442 as the second contact holes that penetrate the insulating layer 20 and connect the wiring electrodes 461 and 462 and the anode 241 and the insulating layer 20. It is provided with anode contact holes 443 and 443 as second contact holes that penetrate and connect between the wiring electrodes 463 and 464 and the anode 242.
  • the cathode 181 is connected to the OLED layer 22 via the cathode contact holes 401 and 402. Further, the OLED layer 22 is connected to the anode 241 via the wiring electrode 461 and the anode contact hole 441, and further connected to the anode 241 via the wiring electrode 462 and the anode contact hole 442. Further, the cathode 182 is connected to the OLED layer 22 via the cathode contact holes 403 and 404. Further, the OLED layer 22 is connected to the anode 242 via the wiring electrode 463 and the anode contact hole 443, and further connected to the anode 242 via the wiring electrode 464 and the anode contact hole 444.
  • the cathode, anode, and RX electrode are formed in the same layer, so that the structure and manufacturing process of the light emitting touch panel are simplified. Further, the cathode and anode, which are electrodes for causing the light emitting touch panel to emit light, and the RX electrode and TX electrode constituting the touch sensor are formed independently. Therefore, the control for emitting the light emitting touch panel and the control for operating the touch sensor can be made independent, and the control becomes easy.
  • 6A to 6D show the structure of the light emitting touch panel according to the fourth embodiment according to the state in each manufacturing process.
  • the additional electrode 48 is separated from a part of the region that was the dummy electrode 42 in the third embodiment, and the TX electrode 30 is connected to the additional electrode 48 by the touch electrode contact hole 52.
  • each dummy electrode 42 has a defective portion 50, and an additional electrode 48 is provided in the defective portion 50.
  • a TX electrode 30 is provided behind the OLED layer 22 so as to sandwich the OLED layer 22 and the insulating layer 20 and intersect with the RX electrode 28.
  • the TX electrode 30 may be made of a light-transmitting conductive material.
  • a protective film is provided at the rear end of the light emitting touch panel.
  • the TX electrode 30 and each additional electrode 48 are connected by an insulating layer 20 and a touch electrode contact hole 52. According to such a configuration, the resistance value of the TX electrode 30 becomes small, and the sensitivity of the touch sensor is improved.
  • a modified example of the light emitting touch panel according to the first embodiment will be described.
  • the following steps can be considered. That is, a mask that draws a pattern that separates the TX electrode 30 and each anode (241,242) is attached to the insulating layer 20, an OLED layer 22 is formed on the mask, and a light-transmitting conductive material is vapor-deposited.
  • the process of peeling off the mask can be considered.
  • a rib 60 projecting rearward may be provided instead of the TX electrode 30 and the mask that separates each anode.
  • a rib 60 projecting rearward is formed on the rear surface of the insulating layer 20.
  • the TX electrode 30 and the anodes 241 and 242 insulated (separated) by the ribs 60 by forming the OLED layer 22 behind the insulating layer 20 and further depositing the light transmitting conductive material 62 behind the OLED layer 22. Is formed.
  • the TX electrode 30 and the anode 241 are insulated by the rib 601 and the TX electrode 30 and the anode 242 are insulated by the rib 602.
  • the structure is shown.
  • Each of the ribs 601 and 602 has a widening region 64 at a position rearward of the RX electrode 28, which is wider than the other portions. By providing the widening region 64, the area of the region of the TX electrode 30 facing the RX electrode 28 is narrowed. As a result, the capacitance formed by the TX electrode 30 and the RX electrode 28 is reduced, and the sensitivity of the touch panel is increased.
  • FIG. 8 shows an example in which the widening region 64 is provided in each of the ribs 601 and 602, but as shown in FIG. 9, the ribs 601 and 602 are provided with the widening region 64. It may have a structure having a uniform width.
  • FIG. 10 shows a structure in which ribs are formed on the light emitting touch panel according to the third embodiment shown in FIGS. 5A to 5D.
  • the ribs 601 and 602 insulate the TX electrode 30 from the other region
  • the ribs 661 to 664 insulate each of the wiring electrodes 461 to 464 from the other region.
  • the ribs 661 to 664 are formed in a rectangular shape that borders the wiring electrodes 461 to 464, respectively, and project rearward from the insulating layer 20.
  • the region that is neither the TX electrode 30 nor the wiring electrodes 461 to 464 may be fixed at a predetermined potential.
  • FIG. 10 shows an example in which the widening region 64 is provided in each of the ribs 601 and 602, the ribs 601 and 602 have the widening region 64 as in the example shown in FIG. May have a structure having a uniform width without being provided.
  • the structure regarding the structure in which the TX electrode and the other region are insulated by the rib, the anode and the other region are insulated, or the wiring electrode and the other region are insulated are explained.
  • Such a structure using ribs may be used in the second embodiment and the fourth embodiment.
  • the structure in which the reflective layer 16 forming the reflective portion and the first electrode layer adjacent to the rear of the reflective layer 16 are provided and the cathodes (18,181,182) overlap the reflective layer 16 has been described.
  • a structure in which at least a part of the cathode (18,181,182) is formed of a material that reflects light and the cathode (18,181,182) also serves as the reflection layer 16 may be adopted. ..
  • the light emitting touch sensor that detects the position where the user's finger approaches or touches according to the change in capacitance has been described.
  • the light emitting touch sensor may be configured to detect the position where the user's finger or the touch pen approaches or touches due to the state change of electromagnetic induction.
  • FIG. 11 shows a diagram illustrating the principle of the electromagnetic induction type touch sensor incorporated in the light emitting touch panel.
  • the electromagnetic induction type touch sensor includes a plurality of (even) TX electrodes 30 formed in a band shape and extending in the left-right direction, and a plurality (even number) RX electrodes 28 formed in a band shape and extending in the vertical direction.
  • the plurality of TX electrodes 30 are arranged in the vertical direction with the directions aligned, and the plurality of RX electrodes 28 are arranged in the horizontal direction with the directions aligned.
  • Each RX electrode 28 intersects each TX electrode 30 with a space.
  • TX electrodes 30 One ends of two adjacent TX electrodes 30 are connected to each other, two from the top.
  • the pair of two TX electrodes 30 to which one ends are connected form a TX loop 72.
  • a plurality of TX loops 72 are arranged vertically in the same direction.
  • RX electrodes 28 are connected to each other, two from the right.
  • a plurality of RX loops 70 are arranged in the left-right direction with their directions aligned.
  • the control circuit (not shown) of the light emitting touch panel causes a pulse current having a pulsed time waveform to flow through a plurality of TX loops 72 in order from the top.
  • the value of the current appearing in each RX loop 70 is 0.
  • the touch pen approaches one of the plurality of RX loops 70 a current is induced in the RX loop 70 approached by the touch pen.
  • the control circuit measures the current of each RX loop 70 in the process of sequentially passing the pulse current through the plurality of TX loops 72.
  • the control circuit detects the position where the touch pen approaches or touches on the touch panel by detecting the RX loop 70 in which the measured current value has changed.
  • the embodiment in which the RX electrode 28 is provided as the touch first electrode in the first electrode layer and the TX electrode 30 is provided as the touch second electrode in the second electrode layer has been described.
  • the functions of the first touch electrode and the second touch electrode may be interchanged. That is, a TX electrode may be provided as the first touch electrode, and an RX electrode may be provided as the second touch electrode.
  • an anode may be provided as the OLED first electrode
  • a cathode may be provided as the OLED second electrode
  • the light emitting touch panel may have a structure in which a second electrode layer, an OLED layer 22, an insulating layer 20, a first electrode layer, and a protective film are laminated in this order in front of the base material 14. In this case, light is emitted from the OLED layer 22 toward the base material 14.

Abstract

The purpose of the present invention is to simplify the structure of a light-emitting touch panel having a light source and make it easy to perform control of the light-emitting touch panel. This light-emitting touch panel is provided with a reflection layer (16) and a first electrode layer adjacent to the reflection layer (16). The first electrode layer is provided with a belt-like RX electrode (28) and a belt-like cathode (18) that is aligned with respect to the RX electrode (28) in the extension direction and that overlaps with the reflection layer (16). In addition, the light-emitting touch panel is provided with an insulation layer (20) adjacent to the first electrode layer and an OLED layer (22) adjacent to the insulation layer (20). The light-emitting touch panel is further provided with a cathode contact hole (40) that penetrates the insulation layer (20) and that connects the cathode (18) and the OLED layer (22), and is further provided with a second electrode layer adjacent to the OLED layer (22). The second electrode layer is provided with: a belt-like TX electrode (30) that intersects with the RX electrode (28); and an anode (24) that is aligned with respect to the TX electrode (30) in the extension direction and that is in contact with the OLED layer (22).

Description

発光タッチパネルLuminous touch panel
　本発明は、発光タッチパネルに関し、特に、ユーザの指等の接触位置を検出すると共に、発光機能を有するタッチパネルの構造に関する。 The present invention relates to a light emitting touch panel, and more particularly to a touch panel structure that detects a contact position of a user's finger or the like and has a light emitting function.
　コンピュータ等の情報処理装置には、タッチパネルディスプレイが広く用いられている。タッチパネルディスプレイは、液晶ディスプレイ（ＬＣＤ）の表示画面上に、操作者の指が接触した位置を検出するタッチセンサを設けたものである。ＬＣＤとして反射型ＬＣＤが用いられた場合、反射型ＬＣＤの前方（表示画面側）に板状の光源としてフロントライトが設けられる。さらに、フロントライトの前方には、板状のタッチセンサが設けられる。 Touch panel displays are widely used in information processing devices such as computers. The touch panel display is provided with a touch sensor that detects the position where the operator's finger touches on the display screen of the liquid crystal display (LCD). When a reflective LCD is used as the LCD, a front light is provided as a plate-shaped light source in front of the reflective LCD (display screen side). Further, a plate-shaped touch sensor is provided in front of the front light.
　フロントライトから後方に放射された光によって、反射型ＬＣＤの表示画面が明るく照らされる。タッチセンサおよびフロントライトは、ＬＣＤの表示画面がユーザから見通されるように光を透過する材料で形成されている。ユーザは、フロントライトによって明るく照らされた表示画面を視認すると共に、タッチセンサに触れることで情報処理装置を操作する。 The display screen of the reflective LCD is brightly illuminated by the light radiated backward from the front light. The touch sensor and front light are made of a material that transmits light so that the display screen of the LCD can be seen by the user. The user visually recognizes the display screen brightly illuminated by the front light and operates the information processing device by touching the touch sensor.
　タッチパネルディスプレイには、タッチパネルとフロントライトが独立に形成されているものがある。このようなタッチパネルディスプレイには、構造および製造工程が複雑になってしまうという問題があった。そこで、以下の特許文献１に記載されているように、タッチパネル用の電極とフロントライト用の電極とが共通化されたタッチパネルディスプレイが提案されている。 Some touch panel displays have a touch panel and a front light formed independently. Such a touch panel display has a problem that the structure and the manufacturing process become complicated. Therefore, as described in Patent Document 1 below, a touch panel display in which the electrodes for the touch panel and the electrodes for the front light are shared has been proposed.
特開２０１６－２１２５６１号公報Japanese Unexamined Patent Publication No. 2016-212561
　特許文献１に記載されているタッチパネルディスプレイでは、タッチパネル用の電極と、フロントライト用の電極とが共通化されている。そのため、タッチパネルおよびフロントライトを時分割で動作させる必要があり、制御が複雑になるという問題があった。 In the touch panel display described in Patent Document 1, the electrodes for the touch panel and the electrodes for the front light are shared. Therefore, it is necessary to operate the touch panel and the front light in a time-division manner, which causes a problem that the control becomes complicated.
　本発明は、フロントライト等の光源を有する発光タッチパネルの構造を単純化すると共に、制御を容易にすることを目的とする。 An object of the present invention is to simplify the structure of a light emitting touch panel having a light source such as a front light and to facilitate control.
　本発明は、線状のタッチ第１電極と、延伸方向を揃えて前記タッチ第１電極に並べられた線状のＯＬＥＤ第１電極と、が設けられた第１電極層と、前記第１電極層の後方に隣接する絶縁層と、前記絶縁層の後方に隣接するＯＬＥＤ層と、前記絶縁層を貫通し、前記ＯＬＥＤ第１電極と前記ＯＬＥＤ層との間に位置する第１コンタクトホールと、前記ＯＬＥＤ層の後方に隣接する第２電極層であって、前記タッチ第１電極に交差する線状のタッチ第２電極と、延伸方向を揃えて前記タッチ第２電極に並べられ、前記ＯＬＥＤ層に接触するＯＬＥＤ第２電極と、が設けられた第２電極層と、を備えることを特徴とする。 The present invention provides a first electrode layer provided with a linear touch first electrode, a linear OLED first electrode arranged in the touch first electrode in the same stretching direction, and the first electrode. An insulating layer adjacent to the rear of the layer, an OLED layer adjacent to the rear of the insulating layer, a first contact hole penetrating the insulating layer and located between the OLED first electrode and the OLED layer, and A second electrode layer adjacent to the rear of the OLED layer, which is arranged with the linear touch second electrode intersecting the touch first electrode and the touch second electrode in the same stretching direction, and the OLED layer. It is characterized by including an OLED second electrode in contact with the second electrode, and a second electrode layer provided with the OLED second electrode.
　望ましくは、前記タッチ第１電極および前記ＯＬＥＤ第１電極はメッシュ状の導体によって形成されている。 Desirably, the touch first electrode and the OLED first electrode are formed of a mesh-like conductor.
　望ましくは、前記第１電極層は、前記タッチ第１電極および前記ＯＬＥＤ第１電極の隙間に設けられ、延伸方向を揃えて前記タッチ第１電極および前記ＯＬＥＤ第１電極に並べて配置された線状のダミー電極を備え、前記ダミー電極は、メッシュ状の導体によって形成されている。 Desirably, the first electrode layer is provided in the gap between the touch first electrode and the OLED first electrode, and is linearly arranged side by side with the touch first electrode and the OLED first electrode in the same stretching direction. The dummy electrode is provided, and the dummy electrode is formed of a mesh-like conductor.
　望ましくは、前記絶縁層よりも前記第２電極層の側に突出し、前記タッチ第２電極を他の領域から絶縁するリブを備える。 Desirably, the ribs are provided so as to project toward the second electrode layer from the insulating layer and insulate the touch second electrode from other regions.
　また、本発明は、線状のタッチ第１電極と、延伸方向を揃えて前記タッチ第１電極に並べられた線状のＯＬＥＤ第１電極と、延伸方向を揃えて前記ＯＬＥＤ第１電極に並べられた線状のＯＬＥＤ第２電極と、が設けられた第１電極層と、前記第１電極層の後方に隣接する絶縁層と、前記絶縁層の後方に隣接するＯＬＥＤ層と、前記絶縁層を貫通し、前記ＯＬＥＤ第１電極と前記ＯＬＥＤ層との間を接続する第１コンタクトホールと、前記ＯＬＥＤ層の後方に隣接する第２電極層であって、前記ＯＬＥＤ層および前記絶縁層を挟んで、前記ＯＬＥＤ第１電極および前記ＯＬＥＤ第２電極に対向する領域を有する配線電極と、前記ＯＬＥＤ層および前記絶縁層を挟んで前記タッチ第１電極に交差する線状のタッチ第２電極と、を備える第２電極層と、前記絶縁層を貫通し、前記配線電極と前記ＯＬＥＤ第２電極との間に位置する第２コンタクトホールと、を備えることを特徴とする。 Further, in the present invention, the linear touch first electrode, the linear OLED first electrode arranged in the touch first electrode in the same stretching direction, and the linear OLED first electrode arranged in the stretching direction in the same stretching direction are arranged in the OLED first electrode. A first electrode layer provided with a linear OLED second electrode, an insulating layer adjacent to the rear of the first electrode layer, an OLED layer adjacent to the rear of the insulating layer, and the insulating layer. A first contact hole that penetrates the OLED 1st electrode and connects the OLED layer to the OLED layer, and a second electrode layer that is adjacent to the rear of the OLED layer and sandwiches the OLED layer and the insulating layer. A wiring electrode having a region facing the OLED first electrode and the OLED second electrode, and a linear touch second electrode that intersects the touch first electrode with the OLED layer and the insulating layer interposed therebetween. It is characterized by including a second electrode layer including the above, and a second contact hole penetrating the insulating layer and located between the wiring electrode and the OLED second electrode.
　望ましくは、前記タッチ第１電極、前記ＯＬＥＤ第１電極および前記ＯＬＥＤ第２電極はメッシュ状の導体によって形成されている。 Desirably, the touch first electrode, the OLED first electrode, and the OLED second electrode are formed of a mesh-like conductor.
　望ましくは、前記第１電極層は、前記タッチ第１電極、前記ＯＬＥＤ第１電極および前記ＯＬＥＤ第２電極の隙間に設けられ、延伸方向を揃えて前記タッチ第１電極、前記ＯＬＥＤ第１電極および前記ＯＬＥＤ第２電極に並べて配置された線状の追加電極を備え、前記発光タッチパネルは、前記絶縁層を貫通し、前記タッチ第２電極と前記追加電極との間に位置するタッチ電極コンタクトホールを備える。 Desirably, the first electrode layer is provided in the gap between the touch first electrode, the OLED first electrode, and the OLED second electrode, and the touch first electrode, the OLED first electrode, and the OLED first electrode are arranged in the same stretching direction. A linear additional electrode arranged side by side with the OLED second electrode is provided, and the light emitting touch panel penetrates the insulating layer and has a touch electrode contact hole located between the touch second electrode and the additional electrode. Be prepared.
　望ましくは、前記絶縁層よりも前記第２電極層の側に突出し、前記タッチ第２電極と他の領域とを絶縁し、または、前記配線電極と他の領域とを絶縁するリブを備える。 Desirably, it is provided with a rib that protrudes toward the second electrode layer from the insulating layer and insulates the touch second electrode and another region, or insulates the wiring electrode and another region.
　望ましくは、反射部分を形成する反射層を有し、前記第１電極層は、前記反射層の後方に隣接し、前記ＯＬＥＤ第１電極は、前記反射層に重なる。 Desirably, it has a reflective layer forming a reflective portion, the first electrode layer is adjacent to the rear of the reflective layer, and the OLED first electrode overlaps the reflective layer.
　本発明によれば、光源を有する発光タッチパネルの構造を単純化すると共に制御を容易にすることができる。 According to the present invention, the structure of a light emitting touch panel having a light source can be simplified and control can be facilitated.
第１実施形態に係る発光タッチパネルの断面を模式的に示す図である。It is a figure which shows typically the cross section of the light emitting touch panel which concerns on 1st Embodiment. 発光タッチパネルに組み込まれるタッチセンサの原理を説明する図である。It is a figure explaining the principle of the touch sensor incorporated in a light emitting touch panel. 第１実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 1st Embodiment. 第１実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 1st Embodiment. 第１実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 1st Embodiment. 第１実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 1st Embodiment. 第２実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 2nd Embodiment. 第２実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 2nd Embodiment. 第２実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 2nd Embodiment. 第２実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 2nd Embodiment. 第３実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 3rd Embodiment. 第３実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 3rd Embodiment. 第３実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 3rd Embodiment. 第３実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 3rd Embodiment. 第４実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 4th Embodiment. 第４実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 4th Embodiment. 第４実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 4th Embodiment. 第４実施形態に係る発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which concerns on 4th Embodiment. 絶縁層の後面に後方に突出するリブが形成された構造を示す図である。It is a figure which shows the structure which the rib which protrudes rearward is formed on the rear surface of an insulating layer. リブが用いられた発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which used the rib. リブが用いられた発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which used the rib. リブが用いられた発光タッチパネルの構造を示す図である。It is a figure which shows the structure of the light emitting touch panel which used the rib. 発光タッチパネルに組み込まれるタッチセンサの原理を説明する図である。It is a figure explaining the principle of the touch sensor incorporated in a light emitting touch panel.
　各図を参照して本発明の各実施形態に係る発光タッチパネルについて説明する。本明細書では、発光タッチパネルからユーザに向かう方向を前方とし、発光タッチパネルから光が放射される方向を後方とする。本明細書における前後左右上下を表す用語は、構造を説明するための便宜上のものであり、発光タッチパネルを使用するときの姿勢を限定するものではない。また、複数の図面に亘って示されている共通の構成要素については同一の符号を付してその説明を省略する。 The light emitting touch panel according to each embodiment of the present invention will be described with reference to each figure. In the present specification, the direction from the light emitting touch panel toward the user is the front, and the direction in which the light is emitted from the light emitting touch panel is the rear. The terms used in the present specification to indicate front-back, left-right, up-down are for convenience of explaining the structure, and do not limit the posture when using the light-emitting touch panel. Further, common components shown in a plurality of drawings are designated by the same reference numerals and the description thereof will be omitted.
　図１には、第１実施形態に係る発光タッチパネルの断面が模式的に示されている。図の上方向は光タッチパネルからユーザ側を見た前方向に対応し、下方向は発光タッチパネルの後ろ方向に対応する。図１の左側に示された発光部１０は光源として機能し、右側に示されたセンサ部１２はタッチセンサとして機能する。ただし、発光部１０とセンサ部１２とでは描かれている断面が異なる。 FIG. 1 schematically shows a cross section of a light emitting touch panel according to the first embodiment. The upper direction of the figure corresponds to the front direction when the user side is viewed from the optical touch panel, and the lower direction corresponds to the rear direction of the light emitting touch panel. The light emitting unit 10 shown on the left side of FIG. 1 functions as a light source, and the sensor unit 12 shown on the right side functions as a touch sensor. However, the cross section drawn is different between the light emitting unit 10 and the sensor unit 12.
　発光部１０の構造について説明する。発光タッチパネルは、基材１４、反射層１６、カソード１８、絶縁層２０、カソードコンタクトホール４０、ＯＬＥＤ層２２（Organic Light Emitting Diode）、アノード２４および保護膜２６を備えている。基材１４は光を透過する材料で形成されている。基材１４の後方には、光を透過しない材料で形成された反射層１６が設けられている。反射層１６の後方には、光を透過する導電性の材料（光透過導電性材料）によって形成されたカソード１８が設けられている。光透過導電性材料としては、ＩＴＯ（Indium Tin Oxide）等が用いられてよい。基材１４およびカソード１８の後方には、絶縁層２０が設けられている。絶縁層２０の後方には、ＯＬＥＤ層２２が設けられている。絶縁層２０には、カソード１８とＯＬＥＤ層２２とを接続するカソードコンタクトホール４０が貫通している。コンタクトホールとは、ＯＬＥＤ層を形成する材料を充填した穴をいい、ＯＬＥＤ層２２と共に形成される。ＯＬＥＤ層２２は、電流が流れることで発光する有機材料で形成されている。ＯＬＥＤ層２２の後方には、光透過導電性材料によって形成されたアノード２４が設けられている。アノード２４の後方には、光を透過する材料で形成された保護膜２６が設けられている。 The structure of the light emitting unit 10 will be described. The light emitting touch panel includes a base material 14, a reflective layer 16, a cathode 18, an insulating layer 20, a cathode contact hole 40, an OLED layer 22 (Organic Light Emitting Diode), an anode 24, and a protective film 26. The base material 14 is made of a material that transmits light. A reflective layer 16 made of a material that does not transmit light is provided behind the base material 14. Behind the reflective layer 16, a cathode 18 formed of a conductive material that transmits light (light-transmitting conductive material) is provided. As the light transmitting conductive material, ITO (Indium Tin Oxide) or the like may be used. An insulating layer 20 is provided behind the base material 14 and the cathode 18. An OLED layer 22 is provided behind the insulating layer 20. A cathode contact hole 40 that connects the cathode 18 and the OLED layer 22 penetrates through the insulating layer 20. The contact hole is a hole filled with a material for forming the OLED layer, and is formed together with the OLED layer 22. The OLED layer 22 is made of an organic material that emits light when an electric current flows through it. Behind the OLED layer 22, an anode 24 formed of a light-transmitting conductive material is provided. Behind the anode 24 is a protective film 26 made of a material that transmits light.
　カソード１８とアノード２４との間に電圧が印加されることでＯＬＥＤ層２２に電流が流れる。これによってＯＬＥＤ層２２のうち電流が流れる領域が発光する。ＯＬＥＤ層２２から前方に発せられた光は反射層１６において反射し、後方に向かう。これによって、発光タッチパネルから後方に光が放射される。 A current flows through the OLED layer 22 by applying a voltage between the cathode 18 and the anode 24. As a result, the region of the OLED layer 22 through which the current flows emits light. The light emitted forward from the OLED layer 22 is reflected by the reflective layer 16 and heads backward. As a result, light is radiated backward from the light emitting touch panel.
　次に、センサ部１２の構造について説明する。センサ部１２では、発光部１０におけるカソード１８と同一工程で形成される層にＲＸ電極２８が設けられている。また、発光部１０におけるアノード２４と同一工程で形成される層にＴＸ電極３０が設けられている。ＲＸ電極２８およびＴＸ電極３０は、光透過導電性材料で帯状に形成されている。光透過導電性材料としてはＩＴＯが用いられてよい。ＴＸ電極３０は左右方向に伸びており、ＲＸ電極２８は、ＯＬＥＤ層２２および絶縁層２０を挟んでＴＸ電極３０に交差している。 Next, the structure of the sensor unit 12 will be described. In the sensor unit 12, the RX electrode 28 is provided on a layer formed in the same process as the cathode 18 in the light emitting unit 10. Further, the TX electrode 30 is provided on the layer formed in the same process as the anode 24 in the light emitting unit 10. The RX electrode 28 and the TX electrode 30 are made of a light-transmitting conductive material and are formed in a band shape. ITO may be used as the light-transmitting conductive material. The TX electrode 30 extends in the left-right direction, and the RX electrode 28 intersects the TX electrode 30 with the OLED layer 22 and the insulating layer 20 interposed therebetween.
　図２には、発光タッチパネルに組み込まれるタッチセンサの原理を説明する図が示されている。タッチセンサは、帯状に形成され左右方向に伸びる複数のＴＸ電極３０と、帯状に形成され上下方向に伸びる複数のＲＸ電極２８を備えている。複数のＴＸ電極３０は、方向を揃えて上下方向に並べられ、複数のＲＸ電極２８は方向を揃えて左右方向に並べられている。各ＲＸ電極２８は各ＴＸ電極３０と空間を隔てて交差している。 FIG. 2 shows a diagram illustrating the principle of the touch sensor incorporated in the light emitting touch panel. The touch sensor includes a plurality of TX electrodes 30 formed in a band shape and extending in the left-right direction, and a plurality of RX electrodes 28 formed in a band shape and extending in the vertical direction. The plurality of TX electrodes 30 are arranged in the vertical direction with the directions aligned, and the plurality of RX electrodes 28 are arranged in the horizontal direction with the directions aligned. Each RX electrode 28 intersects each TX electrode 30 with a space.
　複数のＲＸ電極２８と複数のＴＸ電極３０の交点のうちいずれかにユーザの指が接近すると、ユーザの指が接近した交点における静電容量が変化する。そこで、発光タッチパネルの制御回路（図示せず）は、次のような動作によって、タッチパネルにおいてユーザの指が接近または接触した位置を検出する。 When the user's finger approaches one of the intersections of the plurality of RX electrodes 28 and the plurality of TX electrodes 30, the capacitance at the intersection where the user's finger approaches changes. Therefore, the control circuit (not shown) of the light emitting touch panel detects the position where the user's finger approaches or touches on the touch panel by the following operation.
　すなわち、制御回路は、複数のＴＸ電極３０に、パルス状の時間波形を有するパルス電圧を上から順に印加する。制御回路は、各ＲＸ電極２８に発生する電圧を測定し、パルス電圧が印加されているＴＸ電極３０と各ＲＸ電極２８との間の静電容量を検出する。制御回路は、ユーザの指が存在しない状態における各交点の静電容量を基準値とし、基準値に対する変化量を各交点についてモニターすることで、タッチパネルにおいてユーザの指が接近または接触した位置を検出する。 That is, the control circuit applies a pulse voltage having a pulsed time waveform to the plurality of TX electrodes 30 in order from the top. The control circuit measures the voltage generated in each RX electrode 28 and detects the capacitance between the TX electrode 30 to which the pulse voltage is applied and each RX electrode 28. The control circuit uses the capacitance at each intersection in the absence of the user's finger as a reference value, and monitors the amount of change with respect to the reference value for each intersection to detect the position where the user's finger approaches or touches on the touch panel. To do.
　図３Ａ～図３Ｄには、第１実施形態に係る発光タッチパネルの構造が、各製造工程における状態によって示されている。これらの図は、光タッチパネルの一部分を示したものである。実際には、この部分と同様の構造が繰り返されるように上下左右に広がっている。 3A to 3D show the structure of the light emitting touch panel according to the first embodiment according to the state in each manufacturing process. These figures show a part of the optical touch panel. In reality, it spreads vertically and horizontally so that the same structure as this part is repeated.
　図３Ａに示されているように、基材１４の後面には反射層１６が設けられる。反射層１６は、基材１４の後面のうち光が反射する領域を占める。図３Ａには、４つの反射層１６が示されている。 As shown in FIG. 3A, a reflective layer 16 is provided on the rear surface of the base material 14. The reflective layer 16 occupies a region on the rear surface of the base material 14 on which light is reflected. In FIG. 3A, four reflective layers 16 are shown.
　基材１４および反射層１６の後面には帯状に上下に伸びるカソード１８１および１８２が設けられる。すなわち、左側で上下に並ぶ２つの反射層１６および基材１４の後面には、上下方向に伸びる帯状のカソード１８１が設けられている。同様に、右側で上下に並ぶ２つの反射層１６および基材１４の後面には、帯状に上下に伸びる帯状のカソード１８２が設けられている。 Cathodes 181 and 182 extending up and down in a strip shape are provided on the rear surfaces of the base material 14 and the reflective layer 16. That is, a strip-shaped cathode 181 extending in the vertical direction is provided on the rear surface of the two reflective layers 16 and the base material 14 arranged vertically on the left side. Similarly, a strip-shaped cathode 182 extending vertically in a strip shape is provided on the rear surface of the two reflective layers 16 and the base material 14 arranged vertically on the right side.
　基材１４の後面におけるカソード１８１とカソード１８２との間の領域には、これらのカソードと延伸方向を揃えて、上下方向に伸びる帯状のＲＸ電極２８が設けられる。 In the region between the cathode 181 and the cathode 182 on the rear surface of the base material 14, a band-shaped RX electrode 28 extending in the vertical direction is provided so as to align the stretching direction with these cathodes.
　図３Ｂに示されているように、カソード１８１、カソード１８２、および基材１４の後方には、絶縁層２０が設けられる。 As shown in FIG. 3B, an insulating layer 20 is provided behind the cathode 181 and the cathode 182, and the base material 14.
　図３Ｃに示されているように、絶縁層２０の後方にはＯＬＥＤ層２２が設けられる。カソード１８１における、上下に並ぶ２つの反射層１６に対応する位置には、絶縁層２０を貫通するカソードコンタクトホール４０１および４０２が形成される。カソード１８２における、上下に並ぶ２つの反射層１６に対応する位置には、絶縁層２０を貫通するカソードコンタクトホール４０３および４０４が形成される。カソードコンタクトホール４０１～４０４は、ＯＬＥＤ層２２が形成されると共に形成される。 As shown in FIG. 3C, an OLED layer 22 is provided behind the insulating layer 20. Cathode contact holes 401 and 402 penetrating the insulating layer 20 are formed at positions of the cathode 181 corresponding to the two reflective layers 16 arranged one above the other. Cathode contact holes 403 and 404 penetrating the insulating layer 20 are formed at positions of the cathode 182 corresponding to the two reflective layers 16 arranged one above the other. The cathode contact holes 401 to 404 are formed at the same time as the OLED layer 22 is formed.
　図３Ｄに示されているように、ＯＬＥＤ層２２の後方には、アノード２４１、ＴＸ電極３０およびアノード２４２が設けられる。アノード２４１、ＴＸ電極３０およびアノード２４２のそれぞれは、帯状に形成され左右方向に伸びている。アノード２４１、ＴＸ電極３０およびアノード２４２は、延伸方向を揃えて並べられており、アノード２４１とアノード２４２との間にＴＸ電極３０が設けられている。アノード２４１および２４２は、ＯＬＥＤ層２２の後面に接触する。図３Ｄには示されていないが、発光タッチパネルの最後方には、保護膜が設けられる。 As shown in FIG. 3D, an anode 241 and a TX electrode 30 and an anode 242 are provided behind the OLED layer 22. Each of the anode 241 and the TX electrode 30 and the anode 242 is formed in a band shape and extends in the left-right direction. The anode 241 and the TX electrode 30 and the anode 242 are arranged in the same stretching direction, and the TX electrode 30 is provided between the anode 241 and the anode 242. The anodes 241 and 242 come into contact with the rear surface of the OLED layer 22. Although not shown in FIG. 3D, a protective film is provided at the rear end of the light emitting touch panel.
　このように、本実施形態に係る発光タッチパネルは、反射部分を形成する反射層１６と、反射層１６の後方に隣接する次のような第１電極層を備えている。すなわち、第１電極層は、線状（帯状）のタッチ第１電極としてのＲＸ電極２８と、延伸方向を揃えてＲＸ電極２８に並べられ、反射層１６に重なる線状（帯状）のＯＬＥＤ第１電極としてのカソード１８１および１８２とが設けられた層である。さらに、本実施形態に係る発光タッチパネルは、上記の第１電極層の後方に隣接する絶縁層２０と、絶縁層２０の後方に隣接するＯＬＥＤ層２２とを備えている。また、本実施形態に係る発光タッチパネルは、絶縁層２０を貫通し、カソード１８１とＯＬＥＤ層２２との間に位置する第１コンタクトホールとしてのカソードコンタクトホール４０１および４０２、ならびに、カソード１８２とＯＬＥＤ層２２との間に位置する第１コンタクトホールとしてのカソードコンタクトホール４０３および４０４を備えている。また、本実施形態に係る発光タッチパネルは、ＯＬＥＤ層２２の後方に隣接する次のような第２電極層を備えている。すなわち、第２電極層は、ＲＸ電極２８に交差する線状（帯状）のタッチ第２電極としてのＴＸ電極３０と、延伸方向を揃えてＴＸ電極３０に並べられ、ＯＬＥＤ層２２に接触するＯＬＥＤ第２電極としてのアノード２４１および２４２とが設けられた層である。なお、上記の「線状」の用語は、ある特定の方向に延伸している形状を意味し、その形状は、延伸方向に交わる方向に幅を持たせた帯状を含む。 As described above, the light emitting touch panel according to the present embodiment includes the reflective layer 16 forming the reflective portion and the following first electrode layer adjacent to the rear of the reflective layer 16. That is, the first electrode layer is arranged on the RX electrode 28 as the linear (band-shaped) touch first electrode and the RX electrode 28 in the same stretching direction, and the linear (band-shaped) OLED th. It is a layer provided with cathodes 181 and 182 as one electrode. Further, the light emitting touch panel according to the present embodiment includes an insulating layer 20 adjacent to the rear of the first electrode layer and an OLED layer 22 adjacent to the rear of the insulating layer 20. Further, the light emitting touch panel according to the present embodiment has the cathode contact holes 401 and 402 as the first contact holes located between the cathode 181 and the OLED layer 22 through the insulating layer 20, and the cathode 182 and the OLED layer. It includes cathode contact holes 403 and 404 as first contact holes located between 22 and 22. Further, the light emitting touch panel according to the present embodiment includes the following second electrode layer adjacent to the rear of the OLED layer 22. That is, the second electrode layer is arranged with the TX electrode 30 as the linear (band-shaped) touch second electrode intersecting the RX electrode 28 and the TX electrode 30 in the same stretching direction, and is in contact with the OLED layer 22. It is a layer provided with anodes 241 and 242 as second electrodes. The term "linear" mentioned above means a shape extending in a specific direction, and the shape includes a band shape having a width in a direction intersecting the stretching direction.
　このような構成によれば、カソード１８１がカソードコンタクトホール４０１および４０２を介してＯＬＥＤ層２２に接続され、カソード１８２がカソードコンタクトホール４０３および４０４を介してＯＬＥＤ層２２に接続される。また、アノード２４１および２４２がＯＬＥＤ層２２の後面に接触する。 According to such a configuration, the cathode 181 is connected to the OLED layer 22 via the cathode contact holes 401 and 402, and the cathode 182 is connected to the OLED layer 22 via the cathode contact holes 403 and 404. Further, the anodes 241 and 242 come into contact with the rear surface of the OLED layer 22.
　カソード１８１とアノード２４１との間に電圧が印加されることで、ＯＬＥＤ層２２のうちカソード１８１とアノード２４１との間にある領域と、カソードコンタクトホール４０１とによって構成される発光領域に電流が流れ、この発光領域から光が発せられる。カソード１８１とアノード２４２との間に電圧が印加されることで、ＯＬＥＤ層２２のうちカソード１８１とアノード２４２との間にある領域と、カソードコンタクトホール４０２とによって構成される発光領域に電流が流れ、この発光領域から光が発せられる。カソード１８２とアノード２４１との間に電圧が印加されることで、ＯＬＥＤ層２２のうちカソード１８２とアノード２４１との間にある領域と、カソードコンタクトホール４０３とによって構成される発光領域に電流が流れ、この発光領域から光が発せられる。カソード１８２とアノード２４２との間に電圧が印加されることで、ＯＬＥＤ層２２のうちカソード１８２とアノード２４２との間にある領域と、カソードコンタクトホール４０４とによって構成される発光領域に電流が流れ、この発光領域から光が発せられる。また、ＴＸ電極３０およびＲＸ電極２８は、ＯＬＥＤ層２２および絶縁層２０を挟んで交差し、タッチセンサの一部を構成する。 When a voltage is applied between the cathode 181 and the anode 241, a current flows in the region of the OLED layer 22 between the cathode 181 and the anode 241 and the light emitting region composed of the cathode contact hole 401. , Light is emitted from this light emitting region. By applying a voltage between the cathode 181 and the anode 242, a current flows in the region of the OLED layer 22 between the cathode 181 and the anode 242 and the light emitting region composed of the cathode contact hole 402. , Light is emitted from this light emitting region. When a voltage is applied between the cathode 182 and the anode 241, a current flows in the region of the OLED layer 22 between the cathode 182 and the anode 241 and the light emitting region composed of the cathode contact hole 403. , Light is emitted from this light emitting region. By applying a voltage between the cathode 182 and the anode 242, a current flows in the region of the OLED layer 22 between the cathode 182 and the anode 242 and the light emitting region composed of the cathode contact hole 404. , Light is emitted from this light emitting region. Further, the TX electrode 30 and the RX electrode 28 intersect with each other across the OLED layer 22 and the insulating layer 20 to form a part of the touch sensor.
　このような構成によれば、カソードとＲＸ電極が同一の層に形成されるため、発光タッチパネルの構造および製造工程が単純となる。また、発光タッチパネルを発光させるための電極であるカソードおよびアノードと、タッチセンサを構成するＲＸ電極およびＴＸ電極は独立に形成される。そのため、発光タッチパネルを発光させる制御と、タッチセンサを動作させる制御を独立させることができ、制御が容易となる。 According to such a configuration, since the cathode and the RX electrode are formed in the same layer, the structure and manufacturing process of the light emitting touch panel are simplified. Further, the cathode and anode, which are electrodes for causing the light emitting touch panel to emit light, and the RX electrode and TX electrode constituting the touch sensor are formed independently. Therefore, the control for emitting the light emitting touch panel and the control for operating the touch sensor can be made independent, and the control becomes easy.
　図４Ａ～図４Ｄには、第２実施形態に係る発光タッチパネルの構造が、各製造工程における状態によって示されている。第２実施形態に係る発光タッチパネルは、第１実施形態において、ＩＴＯ等によって形成されていたＲＸ電極２８、カソード１８１および１８２を、メッシュ状の金属で形成したものである。メッシュ状の金属を用いることで、ＲＸ電極２８および各カソード（１８１，１８２）が低抵抗化されると共に、光透過性が実現される。 4A to 4D show the structure of the light emitting touch panel according to the second embodiment according to the state in each manufacturing process. The light emitting touch panel according to the second embodiment is obtained by forming the RX electrodes 28, cathodes 181 and 182, which were formed by ITO or the like in the first embodiment, with a mesh-shaped metal. By using the mesh-shaped metal, the RX electrode 28 and each cathode (181, 182) have low resistance and light transmission is realized.
　図４Ａ～図４Ｄに示されているように、カソード１８１とＲＸ電極２８との隙間には、カソード１８１およびＲＸ電極２８と延伸方向を揃えて並ぶダミー電極４２が設けられる。同様に、カソード１８２とＲＸ電極２８との隙間には、カソード１８１およびＲＸ電極２８と延伸方向を揃えて並ぶダミー電極４２が設けられる。その他のカソードとＲＸ電極２８との隙間にもダミー電極４２が設けられてよい。ダミー電極４２は、他の導体とは接続されていなくてもよく、電位が浮遊した状態であってもよい。図４Ｄには示されていないが、発光タッチパネルの最後方には、保護膜が設けられる。 As shown in FIGS. 4A to 4D, a dummy electrode 42 is provided in the gap between the cathode 181 and the RX electrode 28 so as to be aligned with the cathode 181 and the RX electrode 28 in the extending direction. Similarly, in the gap between the cathode 182 and the RX electrode 28, a dummy electrode 42 that is aligned with the cathode 181 and the RX electrode 28 in the stretching direction is provided. A dummy electrode 42 may also be provided in the gap between the other cathode and the RX electrode 28. The dummy electrode 42 may not be connected to another conductor, and the potential may be suspended. Although not shown in FIG. 4D, a protective film is provided at the rear end of the light emitting touch panel.
　このように、カソードをメッシュ状の金属で形成することで、カソードの光透過性が確保されると共に、カソードの抵抗値が小さくなる。これによって、タッチセンサの感度が向上する。また、メッシュ状の金属で形成されたダミー電極４２を用いることで光透過性が一様となり、後方に設けられる反射型ＬＣＤの見易さが向上する。 By forming the cathode with a mesh-like metal in this way, the light transmission of the cathode is ensured and the resistance value of the cathode is reduced. This improves the sensitivity of the touch sensor. Further, by using the dummy electrode 42 made of mesh-shaped metal, the light transmission becomes uniform, and the visibility of the reflective LCD provided at the rear is improved.
　図５Ａ～図５Ｄには、第３実施形態に係る発光タッチパネルの構造が各製造工程における状態によって示されている。この実施形態は、カソード１８１および１８２が設けられている層と同一の層にアノード２４１および２４２を設けるものである。図５Ａ～図５Ｄには、各カソード（１８１，１８２）、各アノード（２４１，２４２）および各ダミー電極４２がメッシュ状の金属によって構成された例が示されているが、これらの電極は、光透過導電性材料で形成されてもよい。この場合、ダミー電極４２は設けられなくてもよい。 5A to 5D show the structure of the light emitting touch panel according to the third embodiment according to the state in each manufacturing process. In this embodiment, the anodes 241 and 242 are provided on the same layer as the layer on which the cathodes 181 and 182 are provided. 5A to 5D show an example in which each cathode (181, 182), each anode (241, 242), and each dummy electrode 42 are made of a mesh-like metal. It may be made of a light-transmitting conductive material. In this case, the dummy electrode 42 may not be provided.
　図５Ａに示されているように、基材１４の後面におけるカソード１８１とカソード１８２との間の領域には、これらのカソードと延伸方向を揃えて、上下方向に伸びる帯状のＲＸ電極２８が設けられる。また、カソード１８１とＲＸ電極２８との間の領域には、カソード１８１およびＲＸ電極２８と延伸方向を揃えてアノード２４１が設けられている。さらに、カソード１８２とＲＸ電極２８との間の領域には、カソード１８２およびＲＸ電極２８と延伸方向を揃えてアノード２４２が設けられている。また、アノード２４１とＲＸ電極２８との間の領域には、アノード２４１およびＲＸ電極２８と延伸方向を揃えて帯状のダミー電極４２が設けられている。アノード２４２とＲＸ電極２８との間の領域には、アノード２４２およびＲＸ電極２８と延伸方向を揃えて帯状のダミー電極４２が設けられている。 As shown in FIG. 5A, in the region between the cathode 181 and the cathode 182 on the rear surface of the base material 14, a band-shaped RX electrode 28 extending in the vertical direction is provided so as to align the stretching direction with these cathodes. Be done. Further, in the region between the cathode 181 and the RX electrode 28, the anode 241 is provided so as to align the stretching direction with the cathode 181 and the RX electrode 28. Further, in the region between the cathode 182 and the RX electrode 28, the anode 242 is provided so as to align the stretching direction with the cathode 182 and the RX electrode 28. Further, in the region between the anode 241 and the RX electrode 28, a band-shaped dummy electrode 42 is provided so as to align the stretching direction with the anode 241 and the RX electrode 28. In the region between the anode 242 and the RX electrode 28, a band-shaped dummy electrode 42 is provided so as to align the stretching direction with the anode 242 and the RX electrode 28.
　図５Ｂに示されているように、カソード１８１、カソード１８２、ＲＸ電極２８、アノード２４１、アノード２４２およびダミー電極４２の後方には、絶縁層２０が設けられる。図５Ｃに示されているように、絶縁層２０の後方にはＯＬＥＤ層２２が設けられる。アノード２４１における上下２箇所の位置には、絶縁層２０を貫通するアノードコンタクトホール４４１および４４２が形成される。アノード２４２における上下２箇所の位置には、絶縁層２０を貫通するアノードコンタクトホール４４３および４４４が形成される。 As shown in FIG. 5B, an insulating layer 20 is provided behind the cathode 181 and the cathode 182, the RX electrode 28, the anode 241, the anode 242, and the dummy electrode 42. As shown in FIG. 5C, an OLED layer 22 is provided behind the insulating layer 20. Anode contact holes 441 and 442 penetrating the insulating layer 20 are formed at two positions above and below the anode 241. Anode contact holes 443 and 444 penetrating the insulating layer 20 are formed at two positions above and below the anode 242.
　図５Ｄに示されているように、ＯＬＥＤ層２２の後方には、ＯＬＥＤ層２２におけるカソード１８１に対向する領域とアノードコンタクトホール４４１との間を接続する配線電極４６１が設けられる。また、ＯＬＥＤ層２２におけるカソード１８１に対向する領域とアノードコンタクトホール４４２との間を接続する配線電極４６２が設けられる。さらに、ＯＬＥＤ層２２におけるカソード１８２に対向する領域とアノードコンタクトホール４４３との間を接続する配線電極４６３が設けられる。また、ＯＬＥＤ層２２におけるカソード１８２に対向する領域とアノードコンタクトホール４４４との間を接続する配線電極４６４が設けられる。 As shown in FIG. 5D, behind the OLED layer 22, a wiring electrode 461 that connects the region of the OLED layer 22 facing the cathode 181 and the anode contact hole 441 is provided. Further, a wiring electrode 462 for connecting the region of the OLED layer 22 facing the cathode 181 and the anode contact hole 442 is provided. Further, a wiring electrode 463 for connecting the region of the OLED layer 22 facing the cathode 182 and the anode contact hole 443 is provided. Further, a wiring electrode 464 for connecting the region of the OLED layer 22 facing the cathode 182 and the anode contact hole 444 is provided.
　さらに、ＯＬＥＤ層２２の後方における、配線電極４６１と配線電極４６２との間に挟まれる領域、および、配線電極４６３と配線電極４６４との間に挟まれる領域には、横方向に延伸する帯状のＴＸ電極３０が設けられる。配線電極４６１～４６４およびＴＸ電極３０は、光透過導電性材料で形成されてよい。図５Ｄには示されていないが、発光タッチパネルの最後方には、保護膜が設けられる。 Further, in the region behind the OLED layer 22 sandwiched between the wiring electrode 461 and the wiring electrode 462 and the region sandwiched between the wiring electrode 463 and the wiring electrode 464, a strip-shaped region extending in the lateral direction is formed. The TX electrode 30 is provided. The wiring electrodes 461 to 464 and the TX electrode 30 may be made of a light-transmitting conductive material. Although not shown in FIG. 5D, a protective film is provided at the rear end of the light emitting touch panel.
　このように、本実施形態に係る発光タッチパネルは、反射部分を形成する反射層１６と、反射層１６の後方に隣接する次のような第１電極層を備えている。すなわち、第１電極層は、線状（帯状）のタッチ第１電極としてのＲＸ電極２８と、延伸方向を揃えてＲＸ電極２８に並べられ、反射層１６に重なる線状（帯状）のＯＬＥＤ第１電極としてのカソード１８１および１８２と、延伸方向を揃えてカソード１８１および１８２に並べられた線状（帯状）のＯＬＥＤ第２電極としてのアノード２４１および２４２とが設けられた層である。また、本実施形態に係る発光タッチパネルは、上記の第１電極層の後方に隣接する絶縁層２０と、絶縁層２０の後方に隣接するＯＬＥＤ層２２とを備えている。また、本実施形態に係る発光タッチパネルは、絶縁層２０を貫通し、カソード１８１とＯＬＥＤ層２２との間に位置する第１コンタクトホールとしてのカソードコンタクトホール４０１および４０２と、カソード１８２とＯＬＥＤ層２２との間に位置する第１コンタクトホールとしてのカソードコンタクトホール４０３および４０４とを備えている。さらに、本発明の実施形態に係る光タッチパネルは、ＯＬＥＤ層２２の後方に隣接する次のような第２電極層を備えている。すなわち、第２電極層は、ＯＬＥＤ層２２および絶縁層２０を挟んで、カソード１８１およびアノード２４１に対向する領域を有する配線電極４６１および４６２と、ＯＬＥＤ層２２および絶縁層２０を挟んで、カソード１８２およびアノード２４２に対向する領域を有する配線電極４６３および４６４と、ＯＬＥＤ層２２および絶縁層２０を挟んでＲＸ電極２８に交差する線状（帯状）のタッチ第２電極としてのＴＸ電極３０とが設けられた層である。また、本実施形態に係る発光タッチパネルは、絶縁層２０を貫通し、配線電極４６１および４６２とアノード２４１との間を接続する第２コンタクトホールとしてのアノードコンタクトホール４４１および４４２と、絶縁層２０を貫通し、配線電極４６３および４６４とアノード２４２との間を接続する第２コンタクトホールとしてのアノードコンタクトホール４４３および４４３とを備えている。 As described above, the light emitting touch panel according to the present embodiment includes the reflective layer 16 forming the reflective portion and the following first electrode layer adjacent to the rear of the reflective layer 16. That is, the first electrode layer is arranged on the RX electrode 28 as the linear (band-shaped) touch first electrode and the RX electrode 28 in the same stretching direction, and the linear (belt-shaped) OLED th. It is a layer provided with cathodes 181 and 182 as one electrode and anodes 241 and 242 as second electrodes of linear (band-shaped) OLEDs arranged on the cathodes 181 and 182 in the same stretching direction. Further, the light emitting touch panel according to the present embodiment includes an insulating layer 20 adjacent to the rear of the first electrode layer and an OLED layer 22 adjacent to the rear of the insulating layer 20. Further, the light emitting touch panel according to the present embodiment has cathode contact holes 401 and 402 as first contact holes located between the cathode 181 and the OLED layer 22 through the insulating layer 20, and the cathode 182 and the OLED layer 22. It is provided with cathode contact holes 403 and 404 as first contact holes located between and. Further, the optical touch panel according to the embodiment of the present invention includes the following second electrode layer adjacent to the rear of the OLED layer 22. That is, the second electrode layer sandwiches the OLED layer 22 and the insulating layer 20, the wiring electrodes 461 and 462 having regions facing the cathode 181 and the anode 241 and the OLED layer 22 and the insulating layer 20, and the cathode 182. A wiring electrode 463 and 464 having a region facing the anode 242 and a TX electrode 30 as a linear (band-shaped) touch second electrode intersecting the RX electrode 28 with the OLED layer 22 and the insulating layer 20 interposed therebetween are provided. It is a layered layer. Further, the light emitting touch panel according to the present embodiment has the anode contact holes 441 and 442 as the second contact holes that penetrate the insulating layer 20 and connect the wiring electrodes 461 and 462 and the anode 241 and the insulating layer 20. It is provided with anode contact holes 443 and 443 as second contact holes that penetrate and connect between the wiring electrodes 463 and 464 and the anode 242.
　このような構成によれば、カソード１８１は、カソードコンタクトホール４０１および４０２を介してＯＬＥＤ層２２に接続される。また、ＯＬＥＤ層２２は、配線電極４６１およびアノードコンタクトホール４４１を介してアノード２４１に接続され、さらに、配線電極４６２およびアノードコンタクトホール４４２を介してアノード２４１に接続される。また、カソード１８２は、カソードコンタクトホール４０３および４０４を介してＯＬＥＤ層２２に接続される。さらに、ＯＬＥＤ層２２は、配線電極４６３およびアノードコンタクトホール４４３を介してアノード２４２に接続され、さらに、配線電極４６４およびアノードコンタクトホール４４４を介してアノード２４２に接続される。 According to such a configuration, the cathode 181 is connected to the OLED layer 22 via the cathode contact holes 401 and 402. Further, the OLED layer 22 is connected to the anode 241 via the wiring electrode 461 and the anode contact hole 441, and further connected to the anode 241 via the wiring electrode 462 and the anode contact hole 442. Further, the cathode 182 is connected to the OLED layer 22 via the cathode contact holes 403 and 404. Further, the OLED layer 22 is connected to the anode 242 via the wiring electrode 463 and the anode contact hole 443, and further connected to the anode 242 via the wiring electrode 464 and the anode contact hole 444.
　カソード１８１とアノード２４１との間、およびカソード１８２とアノード２４２との間に電圧が印加されることで、ＯＬＥＤ層２２のうち各アノードと各配線電極４６１～４６４に挟まれる領域と、アノードコンタクトホール４４１～４４４とによって構成される発光領域に電流が流れ、発光領域が発光する。また、ＯＬＥＤ層２２のうち各カソードと各配線電極４６１～４６４に挟まれる領域と、カソードコンタクトホール４０１～４０４とによって構成される発光領域に電流が流れ、発光領域が発光する。 By applying a voltage between the cathode 181 and the anode 241 and between the cathode 182 and the anode 242, a region of the OLED layer 22 sandwiched between each anode and each wiring electrode 461 to 464 and an anode contact hole. A current flows through the light emitting region composed of 441 to 444, and the light emitting region emits light. Further, a current flows through a region of the OLED layer 22 sandwiched between each cathode and each wiring electrode 461 to 464 and a light emitting region composed of cathode contact holes 401 to 404, and the light emitting region emits light.
　このような構成によれば、カソード、アノード、およびＲＸ電極が同一の層に形成されるため、発光タッチパネルの構造および製造工程が単純となる。また、発光タッチパネルを発光させるための電極であるカソードおよびアノードと、タッチセンサを構成するＲＸ電極およびＴＸ電極は独立に形成される。そのため、発光タッチパネルを発光させる制御と、タッチセンサを動作させる制御を独立させることができ、制御が容易となる。 According to such a configuration, the cathode, anode, and RX electrode are formed in the same layer, so that the structure and manufacturing process of the light emitting touch panel are simplified. Further, the cathode and anode, which are electrodes for causing the light emitting touch panel to emit light, and the RX electrode and TX electrode constituting the touch sensor are formed independently. Therefore, the control for emitting the light emitting touch panel and the control for operating the touch sensor can be made independent, and the control becomes easy.
　図６Ａ～図６Ｄには、第４実施形態に係る発光タッチパネルの構造が各製造工程における状態によって示されている。この実施形態は、第３実施形態においてダミー電極４２であった領域の一部から追加電極４８を分離し、タッチ電極コンタクトホール５２によってＴＸ電極３０を追加電極４８に接続したものである。 6A to 6D show the structure of the light emitting touch panel according to the fourth embodiment according to the state in each manufacturing process. In this embodiment, the additional electrode 48 is separated from a part of the region that was the dummy electrode 42 in the third embodiment, and the TX electrode 30 is connected to the additional electrode 48 by the touch electrode contact hole 52.
　図６Ａに示されているように、各ダミー電極４２は欠損部分５０を有しており、この欠損部分５０に追加電極４８が設けられている。図６Ｃおよび図６Ｄに示されているように、ＯＬＥＤ層２２の後方には、ＯＬＥＤ層２２および絶縁層２０を挟んでＲＸ電極２８と交差するＴＸ電極３０が設けられている。ＴＸ電極３０は、光透過導電性材料で形成されてよい。図６Ｄには示されていないが、発光タッチパネルの最後方には、保護膜が設けられる。図６Ｂ～図６Ｄに示されているように、ＴＸ電極３０と各追加電極４８は、絶縁層２０およびタッチ電極コンタクトホール５２によって接続されている。このような構成によれば、ＴＸ電極３０の抵抗値が小さくなり、タッチセンサの感度が向上する。 As shown in FIG. 6A, each dummy electrode 42 has a defective portion 50, and an additional electrode 48 is provided in the defective portion 50. As shown in FIGS. 6C and 6D, a TX electrode 30 is provided behind the OLED layer 22 so as to sandwich the OLED layer 22 and the insulating layer 20 and intersect with the RX electrode 28. The TX electrode 30 may be made of a light-transmitting conductive material. Although not shown in FIG. 6D, a protective film is provided at the rear end of the light emitting touch panel. As shown in FIGS. 6B to 6D, the TX electrode 30 and each additional electrode 48 are connected by an insulating layer 20 and a touch electrode contact hole 52. According to such a configuration, the resistance value of the TX electrode 30 becomes small, and the sensitivity of the touch sensor is improved.
　第１実施形態に係る発光タッチパネルの変形例について説明する。図３Ｃの状態から図３Ｄの状態へと進む工程では、次のような工程が考えられる。すなわち、ＴＸ電極３０と各アノード（２４１，２４２）とを分離するパターンを描くマスクを絶縁層２０に付着させ、そのマスクの上からＯＬＥＤ層２２を形成し、さらに、光透過導電性材料を蒸着させ、マスクを剥離する工程が考えられる。しかし、パターンが微細であるような場合には、このような蒸着工程が困難なことがある。そこで、図７に模式的に示されているように、ＴＸ電極３０および各アノードを分離するマスクの代わりに、後方に突出するリブ６０が設けられてよい。 A modified example of the light emitting touch panel according to the first embodiment will be described. In the process of proceeding from the state of FIG. 3C to the state of FIG. 3D, the following steps can be considered. That is, a mask that draws a pattern that separates the TX electrode 30 and each anode (241,242) is attached to the insulating layer 20, an OLED layer 22 is formed on the mask, and a light-transmitting conductive material is vapor-deposited. The process of peeling off the mask can be considered. However, when the pattern is fine, such a vapor deposition process may be difficult. Therefore, as schematically shown in FIG. 7, a rib 60 projecting rearward may be provided instead of the TX electrode 30 and the mask that separates each anode.
　図７に示されている発光タッチパネルでは、絶縁層２０の後面に後方に突出するリブ６０が形成されている。絶縁層２０の後方にＯＬＥＤ層２２を形成し、さらに、ＯＬＥＤ層２２の後方に光透過導電性材料６２を蒸着することで、リブ６０によって絶縁（分離）されたＴＸ電極３０およびアノード２４１および２４２が形成される。 In the light emitting touch panel shown in FIG. 7, a rib 60 projecting rearward is formed on the rear surface of the insulating layer 20. The TX electrode 30 and the anodes 241 and 242 insulated (separated) by the ribs 60 by forming the OLED layer 22 behind the insulating layer 20 and further depositing the light transmitting conductive material 62 behind the OLED layer 22. Is formed.
　図８には、図３Ａ～図３Ｄに示された第１実施形態に係る発光タッチパネルについて、リブ６０１によってＴＸ電極３０とアノード２４１とが絶縁され、リブ６０２によってＴＸ電極３０とアノード２４２とが絶縁された構造が示されている。リブ６０１および６０２のそれぞれは、ＲＸ電極２８よりも後方の位置に、他の部分よりも幅が広い拡幅領域６４を有する。拡幅領域６４が設けられることで、ＴＸ電極３０におけるＲＸ電極２８と対向する領域の面積が狭くなる。これによって、ＴＸ電極３０とＲＸ電極２８によって形成される静電容量が小さくなり、タッチパネルの感度が高くなる。 In FIG. 8, in the light emitting touch panel according to the first embodiment shown in FIGS. 3A to 3D, the TX electrode 30 and the anode 241 are insulated by the rib 601 and the TX electrode 30 and the anode 242 are insulated by the rib 602. The structure is shown. Each of the ribs 601 and 602 has a widening region 64 at a position rearward of the RX electrode 28, which is wider than the other portions. By providing the widening region 64, the area of the region of the TX electrode 30 facing the RX electrode 28 is narrowed. As a result, the capacitance formed by the TX electrode 30 and the RX electrode 28 is reduced, and the sensitivity of the touch panel is increased.
　図８には、リブ６０１および６０２のそれぞれに、拡幅領域６４が設けられた例が示されているが、図９に示されているように、リブ６０１および６０２は、拡幅領域６４が設けられずに幅が一様な構造を有していてもよい。 FIG. 8 shows an example in which the widening region 64 is provided in each of the ribs 601 and 602, but as shown in FIG. 9, the ribs 601 and 602 are provided with the widening region 64. It may have a structure having a uniform width.
　図１０には、図５Ａ～図５Ｄに示された第３実施形態に係る発光タッチパネルについてリブが形成された構造が示されている。この構造では、リブ６０１および６０２によってＴＸ電極３０と他の領域とが絶縁され、リブ６６１～６６４によって、配線電極４６１～４６４のそれぞれと他の領域とが絶縁されている。リブ６６１～６６４は、それぞれ、配線電極４６１～４６４を縁取る長方形状に形成され、絶縁層２０から後方に突出している。ＴＸ電極３０および配線電極４６１～４６４のいずれでもない領域は、所定電位に固定されてもよい。なお、図１０には、リブ６０１および６０２のそれぞれに、拡幅領域６４が設けられた例が示されているが、図９に示されている例と同様、リブ６０１および６０２は、拡幅領域６４が設けられずに幅が一様な構造を有していてもよい。 FIG. 10 shows a structure in which ribs are formed on the light emitting touch panel according to the third embodiment shown in FIGS. 5A to 5D. In this structure, the ribs 601 and 602 insulate the TX electrode 30 from the other region, and the ribs 661 to 664 insulate each of the wiring electrodes 461 to 464 from the other region. The ribs 661 to 664 are formed in a rectangular shape that borders the wiring electrodes 461 to 464, respectively, and project rearward from the insulating layer 20. The region that is neither the TX electrode 30 nor the wiring electrodes 461 to 464 may be fixed at a predetermined potential. Although FIG. 10 shows an example in which the widening region 64 is provided in each of the ribs 601 and 602, the ribs 601 and 602 have the widening region 64 as in the example shown in FIG. May have a structure having a uniform width without being provided.
　ここでは、第１実施形態および第３実施形態について、リブによってＴＸ電極と他の領域とを絶縁し、アノードと他の領域とを絶縁し、あるいは配線電極と他の領域とを絶縁する構造について説明した。このようにリブを用いる構造は、第２実施形態および第４実施形態に用いられてもよい。 Here, regarding the first embodiment and the third embodiment, the structure regarding the structure in which the TX electrode and the other region are insulated by the rib, the anode and the other region are insulated, or the wiring electrode and the other region are insulated. explained. Such a structure using ribs may be used in the second embodiment and the fourth embodiment.
　上記では、反射部分を形成する反射層１６と、反射層１６の後方に隣接する第１電極層とを備え、カソード（１８，１８１，１８２）が反射層１６に重なる構造について説明した。このような構造の他、光を反射する材料でカソード（１８，１８１，１８２）の少なくとも一部を形成し、カソード（１８，１８１，１８２）が反射層１６を兼ねる構造が採用されてもよい。 In the above, the structure in which the reflective layer 16 forming the reflective portion and the first electrode layer adjacent to the rear of the reflective layer 16 are provided and the cathodes (18,181,182) overlap the reflective layer 16 has been described. In addition to such a structure, a structure in which at least a part of the cathode (18,181,182) is formed of a material that reflects light and the cathode (18,181,182) also serves as the reflection layer 16 may be adopted. ..
　上記では、静電容量の変化によって、ユーザの指が接近または接触した位置を検出する発光タッチセンサについて説明した。発光タッチセンサとしては、電磁誘導の状態変化によってユーザの指やタッチペンが接近または接触した位置を検出するものが構成されてもよい。 In the above, the light emitting touch sensor that detects the position where the user's finger approaches or touches according to the change in capacitance has been described. The light emitting touch sensor may be configured to detect the position where the user's finger or the touch pen approaches or touches due to the state change of electromagnetic induction.
　図１１には、発光タッチパネルに組み込まれる電磁誘導型のタッチセンサの原理を説明する図が示されている。電磁誘導型タッチセンサは、帯状に形成され左右方向に伸びる複数（偶数）のＴＸ電極３０と、帯状に形成され上下方向に伸びる複数（偶数）のＲＸ電極２８を備えている。複数のＴＸ電極３０は、方向を揃えて上下方向に並べられ、複数のＲＸ電極２８は方向を揃えて左右方向に並べられている。各ＲＸ電極２８は各ＴＸ電極３０と空間を隔てて交差している。 FIG. 11 shows a diagram illustrating the principle of the electromagnetic induction type touch sensor incorporated in the light emitting touch panel. The electromagnetic induction type touch sensor includes a plurality of (even) TX electrodes 30 formed in a band shape and extending in the left-right direction, and a plurality (even number) RX electrodes 28 formed in a band shape and extending in the vertical direction. The plurality of TX electrodes 30 are arranged in the vertical direction with the directions aligned, and the plurality of RX electrodes 28 are arranged in the horizontal direction with the directions aligned. Each RX electrode 28 intersects each TX electrode 30 with a space.
　上から２本ずつ、隣接する２本のＴＸ電極３０の一端同士が接続されている。一端同士が接続された２本のＴＸ電極３０の組は、ＴＸループ７２を形成する。複数のＴＸループ７２が方向を揃えて上下方向に並べられる。 One ends of two adjacent TX electrodes 30 are connected to each other, two from the top. The pair of two TX electrodes 30 to which one ends are connected form a TX loop 72. A plurality of TX loops 72 are arranged vertically in the same direction.
　また、右から２本ずつ、隣接する２本のＲＸ電極２８の一端同士が接続されている。一端同士が接続された２本のＲＸ電極２８の組は、ＲＸループ７０を形成する。複数のＲＸループ７０が方向を揃えて左右方向に並べられる。 Also, one ends of two adjacent RX electrodes 28 are connected to each other, two from the right. The pair of two RX electrodes 28, one ends of which are connected to each other, forms an RX loop 70. A plurality of RX loops 70 are arranged in the left-right direction with their directions aligned.
　発光タッチパネルの制御回路（図示せず）は、複数のＴＸループ７２に、パルス状の時間波形を有するパルス電流を上から順に流す。コイルを備えるタッチペンが、いずれのＲＸループ７０にも接近していない場合には、各ＲＸループ７０に現れる電流の値は０である。タッチペンが複数のＲＸループ７０のうちいずれかに接近すると、タッチペンが接近したＲＸループ７０に電流が誘起される。 The control circuit (not shown) of the light emitting touch panel causes a pulse current having a pulsed time waveform to flow through a plurality of TX loops 72 in order from the top. When the touch pen provided with the coil is not close to any RX loop 70, the value of the current appearing in each RX loop 70 is 0. When the touch pen approaches one of the plurality of RX loops 70, a current is induced in the RX loop 70 approached by the touch pen.
　制御回路は、パルス電流を複数のＴＸループ７２に順に流す過程において、各ＲＸループ７０の電流を測定する。制御回路は、電流測定値の値が変化したＲＸループ７０を検出することで、タッチパネルにおいてタッチペンが接近または接触した位置を検出する。 The control circuit measures the current of each RX loop 70 in the process of sequentially passing the pulse current through the plurality of TX loops 72. The control circuit detects the position where the touch pen approaches or touches on the touch panel by detecting the RX loop 70 in which the measured current value has changed.
　上記では、第１電極層にタッチ第１電極としてＲＸ電極２８が設けられ、第２電極層にタッチ第２電極としてＴＸ電極３０が設けられた実施形態について説明した。タッチ第１電極およびタッチ第２電極の機能は入れ換えられてもよい。すなわち、タッチ第１電極としてＴＸ電極が設けられ、タッチ第２電極としてＲＸ電極が設けられてもよい。 In the above, the embodiment in which the RX electrode 28 is provided as the touch first electrode in the first electrode layer and the TX electrode 30 is provided as the touch second electrode in the second electrode layer has been described. The functions of the first touch electrode and the second touch electrode may be interchanged. That is, a TX electrode may be provided as the first touch electrode, and an RX electrode may be provided as the second touch electrode.
　また、上記の実施形態におけるアノードとカソードの配置は入れ換えられてもよい。すなわち、ＯＬＥＤ第１電極としてアノードが設けられ、ＯＬＥＤ第２電極としてカソードが設けられてもよい。 Further, the arrangement of the anode and the cathode in the above embodiment may be interchanged. That is, an anode may be provided as the OLED first electrode, and a cathode may be provided as the OLED second electrode.
　上記では、基材１４の後方に反射層１６、第１電極層、絶縁層２０、ＯＬＥＤ層２２、第２電極層、および保護膜を順に積層させた実施形態について説明した。発光タッチパネルは、基材１４の前方に、第２電極層、ＯＬＥＤ層２２、絶縁層２０、第１電極層および保護膜を順に積層させた構造を有してもよい。この場合ＯＬＥＤ層２２から基材１４に向けて光が放射される。 In the above, the embodiment in which the reflective layer 16, the first electrode layer, the insulating layer 20, the OLED layer 22, the second electrode layer, and the protective film are laminated in this order behind the base material 14 has been described. The light emitting touch panel may have a structure in which a second electrode layer, an OLED layer 22, an insulating layer 20, a first electrode layer, and a protective film are laminated in this order in front of the base material 14. In this case, light is emitted from the OLED layer 22 toward the base material 14.
　１０　発光部、１２　センサ部、１４　基材、１６　反射層、１８，１８１，１８２　カソード、２０　絶縁層、２２　ＯＬＥＤ層、２４，２４１，２４２　アノード、２６　保護膜、２８　ＲＸ電極、３０　ＴＸ電極、４０，４０１～４０４　カソードコンタクトホール、４２　ダミー電極、４４１～４４４　アノードコンタクトホール、４６１～４６４　配線電極、５０　欠損部分、５２　タッチ電極コンタクトホール、６０，６０１，６０２，６６１～６６４　リブ、６２　光透過導電性材料、６４　拡幅領域。　　
  10 light emitting part, 12 sensor part, 14 base material, 16 reflective layer, 18,181,182 cathode, 20 insulating layer, 22 OLED layer, 24,241,242 anode, 26 protective film, 28 RX electrode, 30 TX electrode, 40,401-404 Cathode contact hole, 42 dummy electrode, 441-444 anode contact hole, 461-464 wiring electrode, 50 missing part, 52 touch electrode contact hole, 60,601,602,661-664 ribs, 62 light transmission Conductive material, 64 widening area.

Claims (9)

  1. 　線状のタッチ第１電極と、延伸方向を揃えて前記タッチ第１電極に並べられた線状のＯＬＥＤ第１電極と、が設けられた第１電極層と、
    　前記第１電極層の後方に隣接する絶縁層と、
    　前記絶縁層の後方に隣接するＯＬＥＤ層と、
    　前記絶縁層を貫通し、前記ＯＬＥＤ第１電極と前記ＯＬＥＤ層との間に位置する第１コンタクトホールと、
    　前記ＯＬＥＤ層の後方に隣接する第２電極層であって、前記タッチ第１電極に交差する線状のタッチ第２電極と、延伸方向を揃えて前記タッチ第２電極に並べられ、前記ＯＬＥＤ層に接触するＯＬＥＤ第２電極と、が設けられた第２電極層と、
    　を備えることを特徴とする発光タッチパネル。     A first electrode layer provided with a linear touch first electrode and a linear OLED first electrode arranged in the touch first electrode in the same stretching direction.
    An insulating layer adjacent to the rear of the first electrode layer and
    An OLED layer adjacent to the back of the insulating layer and
    A first contact hole that penetrates the insulating layer and is located between the OLED first electrode and the OLED layer,
    A second electrode layer adjacent to the rear of the OLED layer, the linear touch second electrode intersecting the touch first electrode, and the touch second electrode arranged in the same stretching direction and arranged on the touch second electrode, the OLED layer. A second electrode layer provided with an OLED second electrode that comes into contact with the
    A light emitting touch panel characterized by being equipped with.
  2. 　請求項１に記載の発光タッチパネルにおいて、
    　前記タッチ第１電極および前記ＯＬＥＤ第１電極はメッシュ状の導体によって形成されていることを特徴とする発光タッチパネル。     In the light emitting touch panel according to claim 1.
    A light emitting touch panel characterized in that the touch first electrode and the OLED first electrode are formed of a mesh-like conductor.
  3. 　請求項２に記載の発光タッチパネルにおいて、
    　前記第１電極層は、
    　前記タッチ第１電極および前記ＯＬＥＤ第１電極の隙間に設けられ、延伸方向を揃えて前記タッチ第１電極および前記ＯＬＥＤ第１電極に並べて配置された線状のダミー電極を備え、
    　前記ダミー電極は、
    　メッシュ状の導体によって形成されていることを特徴とする発光タッチパネル。     In the light emitting touch panel according to claim 2.
    The first electrode layer is
    A linear dummy electrode provided in the gap between the touch first electrode and the OLED first electrode and arranged side by side with the touch first electrode and the OLED first electrode in the same stretching direction is provided.
    The dummy electrode is
    A light emitting touch panel characterized by being formed of a mesh-like conductor.
  4. 　請求項１から請求項３のいずれか１項に記載の発光タッチパネルにおいて、
    　前記絶縁層よりも前記第２電極層の側に突出し、前記タッチ第２電極を他の領域から絶縁するリブを備えることを特徴とする発光タッチパネル。     In the light emitting touch panel according to any one of claims 1 to 3.
    A light emitting touch panel characterized by having ribs that protrude toward the second electrode layer from the insulating layer and insulate the touch second electrode from other regions.
  5. 　線状のタッチ第１電極と、延伸方向を揃えて前記タッチ第１電極に並べられた線状のＯＬＥＤ第１電極と、延伸方向を揃えて前記ＯＬＥＤ第１電極に並べられた線状のＯＬＥＤ第２電極と、が設けられた第１電極層と、
    　前記第１電極層の後方に隣接する絶縁層と、
    　前記絶縁層の後方に隣接するＯＬＥＤ層と、
    　前記絶縁層を貫通し、前記ＯＬＥＤ第１電極と前記ＯＬＥＤ層との間を接続する第１コンタクトホールと、
    　前記ＯＬＥＤ層の後方に隣接する第２電極層であって、前記ＯＬＥＤ層および前記絶縁層を挟んで、前記ＯＬＥＤ第１電極および前記ＯＬＥＤ第２電極に対向する領域を有する配線電極と、前記ＯＬＥＤ層および前記絶縁層を挟んで前記タッチ第１電極に交差する線状のタッチ第２電極と、を備える第２電極層と、
    　前記絶縁層を貫通し、前記配線電極と前記ＯＬＥＤ第２電極との間に位置する第２コンタクトホールと、　
    　を備えることを特徴とする発光タッチパネル。     A linear touch first electrode, a linear OLED first electrode arranged in the touch first electrode in the same stretching direction, and a linear OLED arranged in the OLED first electrode in the same stretching direction. The first electrode layer provided with the second electrode and
    An insulating layer adjacent to the rear of the first electrode layer and
    An OLED layer adjacent to the back of the insulating layer and
    A first contact hole that penetrates the insulating layer and connects the OLED first electrode and the OLED layer,
    A wiring electrode which is a second electrode layer adjacent to the rear of the OLED layer and has a region facing the OLED first electrode and the OLED second electrode across the OLED layer and the insulating layer, and the OLED. A second electrode layer comprising a layer and a linear touch second electrode that intersects the touch first electrode with the insulating layer interposed therebetween.
    A second contact hole that penetrates the insulating layer and is located between the wiring electrode and the OLED second electrode.
    A light emitting touch panel characterized by being equipped with.
  6. 　請求項５に記載の発光タッチパネルにおいて、
    　前記タッチ第１電極、前記ＯＬＥＤ第１電極および前記ＯＬＥＤ第２電極はメッシュ状の導体によって形成されていることを特徴とする発光タッチパネル。     In the light emitting touch panel according to claim 5.
    A light emitting touch panel characterized in that the touch first electrode, the OLED first electrode, and the OLED second electrode are formed of a mesh-like conductor.
  7. 　請求項５または請求項６に記載の発光タッチパネルにおいて、
    　前記第１電極層は、
    　前記タッチ第１電極、前記ＯＬＥＤ第１電極および前記ＯＬＥＤ第２電極の隙間に設けられ、延伸方向を揃えて前記タッチ第１電極、前記ＯＬＥＤ第１電極および前記ＯＬＥＤ第２電極に並べて配置された線状の追加電極を備え、
    　前記発光タッチパネルは、
    　前記絶縁層を貫通し、前記タッチ第２電極と前記追加電極との間に位置するタッチ電極コンタクトホールを備えることを特徴とする発光タッチパネル。     In the light emitting touch panel according to claim 5 or 6.
    The first electrode layer is
    It was provided in the gap between the touch first electrode, the OLED first electrode, and the OLED second electrode, and was arranged side by side on the touch first electrode, the OLED first electrode, and the OLED second electrode in the same stretching direction. With additional linear electrodes
    The light emitting touch panel is
    A light emitting touch panel comprising a touch electrode contact hole that penetrates the insulating layer and is located between the touch second electrode and the additional electrode.
  8. 　請求項５または請求項６に記載の発光タッチパネルにおいて、
    　前記絶縁層よりも前記第２電極層の側に突出し、前記タッチ第２電極と他の領域とを絶縁し、または、前記配線電極と他の領域とを絶縁するリブを備えることを特徴とする発光タッチパネル。     In the light emitting touch panel according to claim 5 or 6.
    It is characterized by having a rib that protrudes toward the second electrode layer from the insulating layer and insulates the touch second electrode and another region, or insulates the wiring electrode and another region. Luminous touch panel.
  9. 　請求項１または請求項５に記載の発光タッチパネルにおいて、
    　反射部分を形成する反射層を有し、
    　前記第１電極層は、前記反射層の後方に隣接し、
    　前記ＯＬＥＤ第１電極は、前記反射層に重なることを特徴とする発光タッチパネル。
          In the light emitting touch panel according to claim 1 or 5.
    Has a reflective layer that forms a reflective portion,
    The first electrode layer is adjacent to the rear of the reflection layer and is adjacent to the first electrode layer.
    The OLED first electrode is a light emitting touch panel characterized by overlapping the reflective layer.
PCT/JP2020/018430 2019-05-10 2020-05-01 Light-emitting touch panel WO2020230671A1 (en)

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CN114035699A (en) * 2021-03-10 2022-02-11 重庆康佳光电技术研究院有限公司 LED touch chip, preparation method thereof and display device

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JP2016212561A (en) * 2015-05-01 2016-12-15 株式会社ジャパンディスプレイ Input device and display device

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JP2016191982A (en) * 2015-03-30 2016-11-10 株式会社ジャパンディスプレイ Input device and display device
JP2016212561A (en) * 2015-05-01 2016-12-15 株式会社ジャパンディスプレイ Input device and display device

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CN114035699A (en) * 2021-03-10 2022-02-11 重庆康佳光电技术研究院有限公司 LED touch chip, preparation method thereof and display device
CN113997764A (en) * 2021-11-26 2022-02-01 一汽奔腾轿车有限公司 Intelligent touch automobile awning system based on light valve technology and control method thereof

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