WO2020248911A1 - 显示装置和触控器 - Google Patents

显示装置和触控器 Download PDF

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Publication number
WO2020248911A1
WO2020248911A1 PCT/CN2020/094624 CN2020094624W WO2020248911A1 WO 2020248911 A1 WO2020248911 A1 WO 2020248911A1 CN 2020094624 W CN2020094624 W CN 2020094624W WO 2020248911 A1 WO2020248911 A1 WO 2020248911A1
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Prior art keywords
layer
light
photosensitive element
display device
photosensitive
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PCT/CN2020/094624
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English (en)
French (fr)
Inventor
卓恩宗
韦超
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惠科股份有限公司
滁州惠科光电科技有限公司
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Priority to US17/617,941 priority Critical patent/US20220310701A1/en
Publication of WO2020248911A1 publication Critical patent/WO2020248911A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • 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
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
    • H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
    • H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H10K59/8792—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. black layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
    • H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes

Definitions

  • This application relates to the field of display technology, and in particular to a display device and a touch controller.
  • Optical touch technology is another mainstream touch technology in addition to resistive and capacitive touch technologies.
  • Optical sensors respond to detailed actions. The quick response can be applied to conference venues, commercial exhibition venues, education and training venues, exhibitions, financial industries, military and many other industries.
  • the distance of the optical touch is usually reflected by the light source illuminating the finger, which is received by the sensing element to identify the specific location of the touch.
  • the purpose of this application is to provide a display device and a touch controller.
  • the present application discloses a display device, including: a protective screen, a display panel, a photosensitive element, and a condensing element.
  • the protective screen is arranged on the light-emitting surface of the display device, and the photosensitive element is arranged on the display panel and the protective screen.
  • the photosensitive element includes a photosensitive surface that receives light; the photosensitive surface of the photosensitive element is provided with a condensing element.
  • the application also discloses a display device, including: a protective screen arranged on the light-emitting surface of the display device; a display panel arranged opposite to the protective screen; a photosensitive element arranged between the display panel and the protective screen; wherein ,
  • the photosensitive element includes a photosensitive surface that receives light; the photosensitive surface is provided with a condensing element; the photosensitive element includes a first electrode layer, a first doped layer, and an intrinsic layer that are sequentially formed toward the protective screen , A second doped layer and a second electrode layer; a protective layer is provided between the second doped layer and the second electrode layer, the protective layer is provided with via holes, and the second electrode layer passes through the The hole is connected to the second doped layer; the photosensitive element is provided with multiple, an isolation layer is arranged between two adjacent photosensitive elements, and the thickness of the isolation layer is greater than the thickness of the photosensitive element;
  • the isolation layer includes a recessed area formed around the photosensitive element and gradually decreasing in thickness toward the photosensitive element;
  • the present application also discloses a touch controller, including: a protective screen, a backlight source and a photosensitive element, the protective screen is arranged on the touch surface of the touch controller; the photosensitive element is arranged on the display panel and the protective screen
  • the photosensitive element includes a photosensitive surface that receives light; the photosensitive surface of the photosensitive element is provided with a condensing element.
  • the photosensitive element of the present application is provided with a condensing element on the photosensitive surface.
  • the condensing element makes part of the light that cannot reach the photosensitive element (such as finger touch)
  • the incident reflected light) is converged toward the photosensitive surface of the photosensitive element, which can increase the amount of light reaching the photosensitive surface of the photosensitive element, thereby increasing the intensity of the formed photosensitive current, thereby improving the accuracy of finger positioning.
  • increasing the amount of light reaching the photosensitive surface of the photosensitive element can improve the clarity of the fingerprint pattern formed, thereby improving the accuracy of fingerprint recognition.
  • the photosensitive element is arranged between the display panel and the protective screen, which makes the light propagation path between the protective screen and the photosensitive element shorter, and the number of glass layers or film structure that the light reflected by the finger waits for the light to reach the photosensitive element.
  • the number is reduced, so the possibility that the reflected light from the finger will be received by the photosensitive element increases, which improves the sensitivity of the photosensitive element; the placement of the photosensitive element close to the protective screen and the concentrating element double enhance the ability of the photosensitive element to obtain the light to be measured. Improve the sensitivity of sensitivity and reduce the possibility of misjudgment.
  • FIG. 1 is a schematic diagram of a display device according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a display device according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a display panel according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a display device according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of an isolation layer according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another isolation layer according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of another display device according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a touch controller according to an embodiment of the present application.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features; “plurality” means two or more.
  • the term “comprising” and any variations thereof means non-exclusive inclusion, the possibility of the presence or addition of one or more other features, integers, steps, operations, units, components, and/or combinations thereof.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection , It can also be electrical connection; it can be directly connected, it can also be indirectly connected through an intermediate medium, or the internal connection of two components.
  • installed should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection , It can also be electrical connection; it can be directly connected, it can also be indirectly connected through an intermediate medium, or the internal connection of two components.
  • the exemplary photosensitive element 300 is generally arranged on the same layer as the active switch of the array substrate, but such arrangement makes the distance between the photosensitive element 300 and the protective screen 100 farther, so when the photosensitive element 300 is used for the touch function, the finger touches When reaching the protective screen 100 of the display device, diffuse reflection occurs due to the presence of the finger. After the light to be measured is reflected and propagated over a large distance, the large-angle light cannot enter the photosensitive element 300, which will cause inaccurate recognition of the touch position The problem. In view of this problem, the inventor of the present application improved and obtained the following solution:
  • the present application discloses a display device, which includes a display device 10 and a driving circuit 20 for driving the display device 10.
  • the display device 10 includes: a protective screen 100, a display panel 200, The photosensitive element 300 and the condensing element 400, the protective screen 100 is arranged on the light-emitting surface of the display device 10, and the photosensitive element 300 is arranged between the display panel 200 and the protective screen 100; the photosensitive element 300 includes The photosensitive surface that receives light; the photosensitive surface of the photosensitive element 300 is provided with a condensing element 400.
  • the photosensitive element 300 of the present application is provided with a condensing element 400 on the photosensitive surface.
  • the condensing element 400 makes part of the photosensitive element 300 unable to reach the original Light (eg, reflected light touched by a finger) converges toward the photosensitive surface of the photosensitive element 300, which can increase the amount of light reaching the photosensitive surface of the photosensitive element 300, thereby increasing the intensity of the formed photosensitive current, thereby improving the accuracy of finger positioning.
  • the photosensitive element 300 is used for fingerprint recognition, increasing the amount of light reaching the photosensitive surface of the photosensitive element 300 can improve the clarity of the fingerprint pattern formed, thereby improving the accuracy of fingerprint recognition.
  • the photosensitive element 300 is arranged between the display panel 200 and the protective screen 100, which makes the light propagation path between the protective screen 100 and the photosensitive element 300 shorter, and the light reflected by the finger waits for the light to reach the photosensitive element 300 to pass through the glass.
  • the number of layers or the number of film structures is reduced, so the possibility that the reflected light from the finger will be received by the photosensitive element 300 increases, and the sensitivity of the photosensitive element 300 is improved;
  • the photosensitive element 300 is arranged close to the protective screen 100 to cooperate with the condensing element 400
  • the ability of the photosensitive element 300 to obtain the light to be measured is double enhanced, the sensitivity of the photosensitive element is improved, and the possibility of misjudgment is reduced.
  • the display panel 200 in the present application can be an OELD (Organic Light-Emitting Diode, organic electro-laser display) panel, or a Micro-LED (Micro Light Emitting Diode, micro light-emitting diode) panel, wherein the display panel 200 It includes an organic active light emitting pixel matrix 210 or a micro light emitting diode pixel matrix 220; the display device 10 includes a front panel, which is located between the active light emitting display panel 210 and the protective screen 100, or the micro light emitting diode pixels Between the matrix 220 and the protective screen 100; the photosensitive element 300 is arranged on the front plate.
  • OELD Organic Light-Emitting Diode, organic electro-laser display
  • Micro-LED Micro Light Emitting Diode, micro light-emitting diode
  • Such an arrangement can make the photosensitive element 300 and the condensing element 400 be arranged on the front panel as close to the protective screen 100 as possible, which is beneficial to reduce the propagation path of the light to be detected, thereby increasing the light to be detected by the photosensitive element 300.
  • the possibility of improving the sensitivity of the photosensitive element 300 can make the photosensitive element 300 and the condensing element 400 be arranged on the front panel as close to the protective screen 100 as possible, which is beneficial to reduce the propagation path of the light to be detected, thereby increasing the light to be detected by the photosensitive element 300.
  • the possibility of improving the sensitivity of the photosensitive element 300 can improve the sensitivity of the photosensitive element 300.
  • the organic active light-emitting pixel matrix 210 includes white light-emitting diodes 210a, or the micro-light-emitting diode pixel matrix 220 includes white light-emitting diodes 210b; the photosensitive element 300 is arranged corresponding to the white light-emitting diodes.
  • the white light-emitting diode is beneficial to improve the brightness of the display device 10.
  • the photosensitive element 300 is arranged at a position corresponding to the white light-emitting diode.
  • the layers of the photosensitive element 300 have a weak influence on white light, which can avoid the effect of the photosensitive element 300 on the red, green and blue light-emitting diodes.
  • the light transmittance constitutes an influence; and the photosensitive element 300 is not arranged on the red light emitting diode, the green light emitting diode and the blue light emitting diode, and the photosensitive element 300 is not arranged on one of the red light emitting diode, the green light emitting diode or the blue light emitting diode. , Which affects the light transmittance of the corresponding light-emitting diodes, and makes the light transmittances of the RGB pixels inconsistent, resulting in color deviation, affecting the display effect, and retaining the higher display effect of the display device 10.
  • the display panel 200 in this application can also be a pixel array of a TFT-LCD (Thin Film Transistor-Liquid Crystal Display) display device 10, as shown in FIG. 3, where the display panel 200 includes a backlight module 230, A substrate 240, a second substrate 250 disposed opposite to the first substrate 240, and a liquid crystal layer disposed between the first substrate 240 and the second substrate 250; the first substrate 240 is provided with an active switch array
  • the photosensitive element 300 is disposed between the second substrate 250 and the protective screen 100.
  • the display panel 200 in the present application is a pixel array of TFT-LCD
  • the film layer of the TFT-LCD is thicker
  • the photosensitive element 300 is arranged on the first substrate (array substrate)
  • the light to be detected will travel farther.
  • the loss is greater. Therefore, in this application, the photosensitive element 300 is arranged between the second substrate 250 and the protective screen 100, closer to the protective screen 100, the propagation path of the light to be detected reflected when touched is shorter, and the recognition effect is better.
  • the second substrate 250 may also be provided on the side of the first substrate close to the protective screen 100, and the photosensitive element 300 may be on the second substrate 250.
  • the second substrate includes a pixel unit.
  • the pixel unit 251 includes multiple red sub-pixels 251a, multiple blue sub-pixels 251b, multiple green sub-pixels 251c, and multiple white sub-pixels 251d.
  • the photosensitive element 300 corresponds to It is arranged at the position of the white sub-pixel 251d.
  • the white sub-pixel 251d includes a pixel electrode and a white color resistance corresponding to the pixel electrode.
  • the white color resistance has a high light transmittance, which is beneficial to increase the brightness of the display device 10, and can prevent the photosensitive element 300 from interacting with the red sub-pixel 251a and the green sub-pixel 251b.
  • the light transmittance of the blue sub-pixel 251c, and the light-sensing element 300 is disposed on one of the red light-emitting diodes, green light-emitting diodes, or blue light-emitting diodes.
  • the light transmittance corresponding to the pixels is inconsistent, resulting in color deviation, affecting the display effect, and retaining the higher display effect of the display device 10.
  • the thickness of the protective screen 100 is between 0.07-0.5 mm.
  • the thinner the thickness of the protective screen 100 the shorter the distance the emitted light travels to enter the photosensitive element 300, and the lower the loss.
  • the shorter the path the light to be detected at the corresponding position can also be received by the photosensitive element 300 at the corresponding position, and the distance is reflected The light is closer, which can effectively increase the light concentration of the concentrating element 400.
  • the thickness of the protective screen 100 is not too thin, and it cannot protect the elements in other parts of the display device 10, and it is not too thick.
  • the transmission loss of the light to be detected is large, and the light transmittance is reduced.
  • the isolation layer 500 includes a recessed area formed around the photosensitive element 300 and gradually decreasing in thickness toward the photosensitive element 300;
  • a semi-transmissive mask is used.
  • the semi-transparent mask includes three parts, namely: a light-transmitting area 510, a light-shielding area 530, and a semi-transmitting area 520.
  • the light-shielding area 510 forms the isolation layer 500 with the largest thickness
  • the light-transmitting area 530 does not form the isolation layer 500
  • the semi-transmitting area 520 forms a recessed area with a gradually changing thickness
  • the corresponding light transmittance of the recessed area is gradually changed to form an arc
  • the recessed area corresponds to the shape of the light-concentrating element 400 and is used to protect the light-concentrating element 400.
  • the photosensitive element 300 is formed in the corresponding light-transmitting area, and the condensing element 400 is formed above the photosensitive element 300 and the recessed area, so that it is formed in the recessed area.
  • the condensing element 400 is in the shape of a convex lens 410 to enhance the condensing effect; the diameter of the convex lens 410 is set to 10-75um, and the range of light transmittance is 60%-90%; the diameter of the convex lens cannot be set too large or too small, The light-collecting area of a photosensitive element is fixed. If it is too large, it will not collect more light.
  • an encapsulation layer 430 is provided between the plurality of convex lenses 410 and the protective screen 100 to ensure that the convex lens 410 is flat.
  • the condensing element 400 in the present application can be a convex lens, a micro lens, etc., or other optical elements that can condense light from different angles, as long as it is applicable.
  • a light shielding layer 420 can be provided between the isolation layer 500 in the recessed area and the light concentrating element 400 to prevent the light emitted by the display panel 200 from passing through the light concentrating element 400, causing refraction or reflection, thereby affecting display effect.
  • the photosensitive element 300 includes a first electrode layer 350, a first doped layer 340, an intrinsic layer 330, a second doped layer 320, and a second electrode layer 310 that are sequentially formed toward the protection screen 100;
  • the light-concentrating element 400 is disposed above the second electrode layer 310;
  • a protective layer 360 is disposed between the second doped layer 340 and the second electrode layer 310, the protective layer 360 is provided with via holes, and the The second electrode layer 310 is connected to the second doped layer 320 through the via hole.
  • the thickness of the intrinsic layer 330 is greater than the thickness of the second doped layer 340 and also greater than the thickness of the second doped layer 320.
  • the first doped layer 340 is an N-type doped layer
  • the second doped layer 320 is a P-type doped layer
  • the first electrode layer 350 is an anode
  • the second electrode layer is a cathode.
  • the photosensitive element 300 further includes a separation layer disposed between the P-type doped layer 321 and the N-type doped layer 341, and the separation layer covers the sidewall of the N-type doped layer 341.
  • the separation layer is used to isolate the electrical properties of the N-type doped layer 341 and the P-type doped layer 321, and prevent the N-type doped layer 341 and the P-type doped layer 321 from being electrically connected during the formation process.
  • a separation layer can also be formed above the N-type doped layer 341, an opening is provided in the separation layer, and the square-shaped levy layer 330 is connected to the N-type doped layer 341 through the opening;
  • the display device 10 further includes a readout active switch 600 connected to the photosensitive element 300 in a one-to-one correspondence, and the readout active switch 600 includes a transparent electrode layer 610 formed above the readout active switch 600 ; The transparent electrode layer 610 and the first electrode layer 350 are formed by the same process.
  • the readout active switch 600 further includes a gate 630, a source 640, and a drain 650.
  • the source 640 is connected to the transparent electrode layer 610.
  • the display device 10 further includes an identification circuit.
  • the gate 630 And the drain electrode 650 are respectively connected to the identification circuit, the transparent electrode layer 610 is connected to the first electrode layer 350, and the readout active switch 600 is used to identify the photosensitive element 300 after collecting light of different intensity.
  • the active read switch 600 transmits the photosensitive current to the corresponding photosensitive current identification chip for data processing.
  • a touch controller which includes a protective screen 100, a backlight 710, and a photosensitive element 300.
  • the protective screen 100 is disposed on the touch controller.
  • the touch surface; the photosensitive element 300 is arranged between the display panel 200 and the protective screen 100; the photosensitive element 300 includes a photosensitive surface that receives light; the photosensitive surface of the photosensitive element 300 is provided with a condensing element 400, so
  • the structure of the photosensitive element 300 and the structure of the isolation layer 500 are as described above, and will not be repeated here.
  • the touch controller in this embodiment can be used for fingerprint recognition or as a touch module. After improvement It is installed on the display device 10 and used together.

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Abstract

本申请公开了一种显示装置和触控器，所述显示装置(1)包括：保护屏(100)、显示面板(200)、感光元件(300)和聚光元件(400)，所述保护屏(100)设置在所述显示装置(1)的出光面，所述感光元件(300)设置在所述显示面板(200)和保护屏(100)之间；所述感光元件(300)包括接收光线的感光面；所述感光元件的感光面设置有聚光元件(400)。

Description

显示装置和触控器
本申请要求于2019年6月10日提交中国专利局，申请号为CN201910497844.4，申请名称为“一种显示装置和触控器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种显示装置和触控器。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术；
随着多媒体技术的发展，触控技术已经成为当今人机交互中的热点技术，光学触摸技术是一种除了电阻、电容等触摸技术外的另外一种主流的触摸技术，光学传感器对细致的动作反应快速可应用于会议场所、商业展示场所、教育培训场所、展览展示、金融行业、部队诸多行业。光学触摸的远离通常为使用光源照射手指发生反射，由感应元件接收，识别触摸具体位置。
但是，通常情况下，由于反射光进入到感光元件的路径较长，损耗较多，容易造成光学触控不准确的问题。
发明内容
本申请的目的是提供一种显示装置和触控器。
本申请公开了种显示装置，包括：保护屏、显示面板、感光元件和聚光元件，所述保护屏设置在所述显示装置的出光面，所述感光元件设置在所述显示面板和保护屏之间；所述感光元件包括接收光线的感光面；所述感光元件的感光面设置有聚光元件。
本申请还公开了一种显示装置，包括：保护屏，设置在所述显示装置的出光面；显示面板，与保护屏相对设置；感光元件，设置在所述显示面板和保护屏之间；其中，所述感光元件包括接收光线的感光面；所述感光面设置有聚光元件；所述感光元件包括向所述保护屏方向依次形成的第一电极层、第一掺杂层、本征层、第二掺杂层和第二电极层；所述第二掺杂层和第二电极层之间设置有保护层，所述保护层设置有过孔，所述第二电极层通过所述过孔与所述第二掺杂层连接；所述感光元件设置有多个，相邻两个所述感光元件之间设置有隔离层，所述隔离层的厚度大于所述感光元件的厚度；所述隔离层包括形成在围绕所述感光元件，且厚度向靠近所述感光元件方向逐渐减小的凹陷区；所述第二电极层形成在所述隔离层 上方，所述聚光元件位于所述第二电极层靠近保护屏的一侧，对应所述凹陷区设置；所述显示装置还包括与所述感光元件一一对应连接的读出主动开关，所述读出主动开关包括形成在所述读出主动开关上方的透明电极层；所述透明电极层和所述第一电极层通过同一制程形成。
本申请还公开了一种触控器，包括：保护屏、背光源和感光元件，所述保护屏设置在所述触控器的触摸面；所述感光元件设置在所述显示面板和保护屏之间；所述感光元件包括接收光线的感光面；所述感光元件的感光面设置有聚光元件。
相对于示例性的将感光元件设置与主动开关同层的方案来说，本申请的感光元件在感光面上设置有聚光元件，聚光元件使得部分本来无法达到感光元件的光线(例如手指触碰的反射光)朝向感光元件的感光面汇聚，可以增加到达感光元件的感光面的光线数量，从而可以提高形成的感光电流的强度，进而提高手指定位准确度。而当感光元件用于指纹识别时，增加到达感光元件的感光面的光线数量，可以提高形成指纹图案的清晰度，进而提高指纹识别精度。而且感光元件设置在所述显示面板和保护屏之间，这使得保护屏和感光元件之间的光线传播路径较短，手指反射光等待测光线到达感光元件需要经过的玻璃层数或者膜层结构数量变少，因而手指反射光对应被感光元件接收到的可能性增加，提升了感光元件的感光精度；感光元件靠近保护屏的设置，配合聚光元件双重提升感光元件获取待测光的能力，提高感光精度，减少误判可能性。
附图说明
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本申请的一实施例的一种显示装置的示意图；
图2是本申请的一实施例的显示装置的示意图；
图3是本申请的一实施例的一种显示面板的示意图
图4是本申请的一实施例的一种显示装置的示意图；
图5是本申请的一实施例的一种隔离层的示意图；
图6是本申请的一实施例的另一种隔离层的示意图；
图7是本申请的一实施例的另一种显示装置的示意图；
图8是本申请的一实施例的一种触控器的示意图。
具体实施方式
需要理解的是，这里所使用的术语、公开的具体结构和功能细节，仅仅是为了描述具体实施例，是代表性的，但是本申请可以通过许多替换形式来具体实现，不应被解释成仅受限于这里所阐述的实施例。
在本申请的描述中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示相对重要性，或者隐含指明所指示的技术特征的数量。由此，除非另有说明，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征；“多个”的含义是两个或两个以上。术语“包括”及其任何变形，意为不排他的包含，可能存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
另外，“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系的术语，是基于附图所示的方位或相对位置关系描述的，仅是为了便于描述本申请的简化描述，而不是指示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，或是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
下面参考附图和可选的实施例对本申请作详细说明。
示例性的感光元件300，一般与阵列基板的主动开关同层设置，但是这样的设置使得感光元件300与保护屏100的距离较远，如此，当感光元件300用于触控功能时，手指触摸到显示装置的保护屏100时，由于手指存在会发生漫反射，待测光线经过较大距离的反射和传播之后，大角度的光线进入不了感光元件300中，这会造成触碰位置识别不准确的问题。本申请的发明人针对此问题，改进得到如下方案：
如图1至图2所示，本申请公开了一种显示装置，其中包括显示装置10和驱动所述显示装置10的驱动电路20，所述显示装置10包括：保护屏100、显示面板200、感光元件300和聚光元件400，所述保护屏100设置在所述显示装置10的出光面，所述感光元件300设置在所述显示面板200和保护屏100之间；所述感光元件300包括接收光线的感光面；所述感光元件300的感光面设置有聚光元件400。
相对于示例性的将感光元件300设置与主动开关同层的方案来说，本申请的感光元件300在感光面上设置有聚光元件400，聚光元件400使得部分本来无法达到感光元件300的光线(例如手指触碰的反射光)朝向感光元件300的感光面汇聚，可以增加到达感光元件300的感光面的光线数量，从而可以提高形成的感光电流的强度，进而提高手指定位准确度。 而当感光元件300用于指纹识别时，增加到达感光元件300的感光面的光线数量，可以提高形成指纹图案的清晰度，进而提高指纹识别精度。而且感光元件300设置在所述显示面板200和保护屏100之间，这使得保护屏100和感光元件300之间的光线传播路径较短，手指反射光等待测光线到达感光元件300需要经过的玻璃层数或者膜层结构数量变少，因而手指反射光对应被感光元件300接收到的可能性增加，提升了感光元件300的感光精度；感光元件300靠近保护屏100的设置，配合聚光元件400双重提升感光元件300获取待测光的能力，提高感光精度，减少误判可能性。
当然，本申请中的显示面板200可以是OELD(Organic Light-Emitting Diode，有机电激光显示)面板，也可以是Micro-LED(Micro Light Emitting Diode，微型发光二极管)面板，其中所述显示面板200包括有机主动发光像素矩阵210或微型发光二极管像素矩阵220；所述显示装置10包括前板，所述前板位于所述主动发光显示面板210和保护屏100之间，或所述微型发光二极管像素矩阵220和所述保护屏100之间；所述感光元件300设置在所述前板上。这样的设置，可以使得感光元件300和聚光元件400尽可能的设置在前板上最靠近保护屏100的位置，有利于减少待检测光的传播路径，从而增加待检测光被感光元件300接收的可能性，提升感光元件300感光精度。
具体的，所述有机主动发光像素矩阵210包括白色发光二极管210a，或所述微型发光二极管像素矩阵220包括白色发光二极管210b；所述感光元件300对应所述白色发光二极管设置。白色发光二极管有利于提升显示装置10的亮度，感光元件300设置在对应白色发光二极管的位置，感光元件300各膜层对白光的影响较弱，可以避免感光元件300对红绿蓝发光二极管处的透光率构成影响；而且感光元件300未设置在红色发光二极管、绿色发光二极管和蓝色发光二极管上，不会由于感光元件300设置在其中一个红色发光二极管、绿色发光二极管或蓝色发光二极管上，影响对应发光二极管的透光率，而使得RGB像素对应的透光率不一致，导致颜色发生偏差，影响显示效果，保留显示装置10较高的显示效果。
不仅如此，本申请中的显示面板200还可以是TFT-LCD(Thin Film Transistor-Liquid Crystal Display)显示装置10的像素阵列，如图3，其中所述显示面板200包括：背光模组230、第一基板240、与所述第一基板240相对设置的第二基板250、以及设置在所第一基板240和第二基板250之间的液晶层；所述第一基板240上设置有主动开关阵列，所述感光元件300设置在第二基板250与所述保护屏100之间。本申请中的显示面板200为TFT-LCD的像素阵列时，因为TFT-LCD的膜层更厚，如果将感光元件300设置在第一基板(阵列基板)上，那么待检测光传播路径更远，损耗更大，所以本申请将感光元件300设置在第二基板250和保护屏100之间，距离保护屏100更近，触摸时反射的待检测光的传播路径更短，识别效果更好。
当然，本申请还可以设置第二基板250在所述第一基板靠近所述保护屏100一侧，而感光元件300是在所述第二基板250上，也是可以的。
所述第二基板包括像素单元，所述像素单元251包括多个红色子像素251a、多个蓝色子像素251b、多个绿色子像素251c和多个白色子像素251d，所述感光元件300对应设置在所述白色子像素251d的位置。白色子像素251d包括像素电极和与像素电极相对应的白色色阻，白色色阻透光率较高，有利于提升显示装置10亮度，可以避免感光元件300对红色子像素251a、绿色子像素251b和蓝色子像素处251c的透光率构成影响，不会由于感光元件300设置在其中一个红色发光二极管、绿色发光二极管或蓝色发光二极管上，影响对应发光二极管的透光率，而使得RGB像素对应的透光率不一致，导致颜色发生偏差，影响显示效果，保留显示装置10较高的显示效果。
具体的，所述保护屏100的厚度在0.07-0.5mm之间。保护屏100的厚度越薄，发射光线进入感光元件300经过的路程越短，损耗越低，同时，路径越短，对应位置的待检测光线也能由对应位置的感光元件300接收到，距离反射光线更近，可以有效增大聚光元件400的聚光量，在这个范围内，保护屏100的厚度不至于太薄，而不能起到保护显示装置10其它部位的元件，又不至于太厚，对待检测光传播损耗较大，降低透光率。
如图4至图8所示，所述感光元件300设置有多个，相邻两个所述感光元件300之间设置有隔离层500，所述隔离层500厚度大于所述感光元件300；所述隔离层500包括形成在围绕所述感光元件300，且厚度向靠近所述感光元件300方向逐渐减小的凹陷区；
对应的，所述隔离层500的形成步骤中，使用半透掩膜板，所述半透掩模板包括三个部分，分别为：透光区510、遮光区530和半透区520，所述遮光区510形成隔离层500厚度最大，所述透光区530不形成隔离层500，所述半透区520形成厚度逐渐变化的凹陷区，凹陷区对应的透光率渐变，以形成弧形的凹陷区，凹陷区与聚光元件400的形状对应，用于保护聚光元件400。如图4和图6，对应的，形成隔离层500之后，在对应的所述透光区形成感光元件300，在感光元件300与凹陷区上方形成聚光元件400，使得形成在所述凹陷区的聚光元件400为凸透镜410形状，以增强聚光效果；所述凸透镜410的直径设置为10-75um，透光率的范围为60％-90％；凸透镜的直径不能设置过大和过小，一个感光元件收集光线的的区域是固定的，过大也不会收集到更多的光线，过小将导致无法将收集光线的区域内所有的光线收集完，因此只需要给将对应的感光元件300对应区域的光线收集传递给感光元件300，而且透光率相对要求较高，防止光线衰减过多。
具体的，所述多个凸透镜410与所述保护屏100之间设置封装层430，以保证凸透镜410上方平坦。
当然，本申请中的所述聚光元件400可以为凸透镜，微透镜等，也可以是其它可以把 不同角度光线聚集的光学元件，只要适用即可。
如图5，所述凹陷区的隔离层500与所述聚光元件400之间可以设置遮光层420，防止所述显示面板200发出的光线通过聚光元件400，产生折射或反射现象，从而影响显示效果。
具体的，所述感光元件300包括向保护屏100方向依次形成的第一电极层350、第一掺杂层340、本征层330、第二掺杂层320和第二电极层310；所述聚光元件400设置在所述第二电极层310上方；所述第二掺杂层340和第二电极层310之间设置有保护层360，所述保护层360设置有过孔，所述第二电极层310通过所述过孔与所述第二掺杂层320连接。所述本征层330厚度大于第二掺杂层340的厚度，也大于所述第二掺杂层320的厚度。其中，所述第一掺杂层340即N型掺杂层，第二掺杂层320即P型掺杂层，所述第一电极层350即阳极，所述第二电极层即阴极。
所述感光元件300还包括设置在所述P型掺杂层321和N型掺杂层341之间的分离层，所述分离层覆盖所述N型掺杂层341的侧壁。所述分离层用于隔绝N型掺杂层341与P型掺杂层321的电性，防止N型掺杂层341与P型掺杂层321在形成过程中产生电性连接。
与上述对应的带有分离层的感光元件300的形成步骤：形成N型掺杂层341；形成与所述N型掺杂层341大小相同的本征层331；在所述本征层330上方形成分离层；在所述分离层设置开口，在所述分离层上方形成P型掺杂层321，通过开口与本征层330连接；
当然，也可以在N型掺杂层341上方形成分离层，在所述分离层设置开口，在所述分离层上方形成本征层330，通过开口与N型掺杂层341连接；
具体的，所述显示装置10还包括与所述感光元件300一一对应连接的读出主动开关600，所述读出主动开关600包括形成在所述读出主动开关600上方的透明电极层610；所述透明电极层610和所述第一电极层350通过同一制程形成。所述读出主动开关600还包括栅极630、源极640和漏极650，所述源极640与所述透明电极层610连接，所述显示装置10还包括识别电路，所述栅极630和漏极650分别与所述识别电路连接，所述透明电极层610与所述第一电极层350连接，所述读出主动开关600用于识别感光元件300收集到强弱不同的光线之后产生的感光电流，由当打开读出主动开关600的栅极时，读出主动开关600将感光电流传递至对应的感光电流识别芯片中进行数据处理。
如图9所示，作为本申请的另一实施例，公开了一种触控器，包括：保护屏100、背光源710和感光元件300，所述保护屏100设置在所述触控器的触摸面；所述感光元件300设置在所述显示面板200和保护屏100之间；所述感光元件300包括接收光线的感光面；所述感光元件300的感光面设置有聚光元件400，所述感光元件300的结构，隔离层500的结构如上述记载，此处不再重复，本实施例中的所述触控器可以用作指纹识别，也可以用作触控模组，进行改进后加装在显示装置10上配合使用。
以上内容是结合具体的可选实施方式对本申请所作的进一步详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请的保护范围。

Claims (20)

  1. 一种显示装置，包括：
    保护屏，设置在所述显示装置的出光面；
    显示面板，与保护屏相对设置；以及
    感光元件，设置在所述显示面板和保护屏之间；
    其中，所述感光元件包括接收光线的感光面；所述感光面设置有聚光元件。
  2. 如权利要求1所述的一种显示装置，其中，所述显示面板包括有机主动发光像素矩阵或微型发光二极管像素矩阵；
    所述显示装置包括前板，所述前板位于所述有机主动发光像素矩阵和所述保护屏之间；
    所述感光元件设置在所述前板上。
  3. 如权利要求1所述的一种显示装置，其中，所述显示面板包括微型发光二极管像素矩阵；
    所述显示装置包括前板，所述前板位于所述微型发光二极管像素矩阵和所述保护屏之间；
    所述感光元件设置在所述前板上。
  4. 如权利要求2所述的一种显示装置，其中，所述有机主动发光像素矩阵包括白色发光二极管，所述感光元件对应所述白色发光二极管设置。
  5. 如权利要求3所述的一种显示装置，其中，所述微型发光二极管像素矩阵包括白色发光二极管；所述感光元件对应所述白色发光二极管设置.
  6. 如权利要求1所述的一种显示装置，其中，所述感光元件包括向所述保护屏方向依次形成的第一电极层、第一掺杂层、本征层、第二掺杂层和第二电极层；
    所述第二掺杂层和第二电极层之间设置有保护层，所述保护层设置有过孔，所述第二电极层通过所述过孔与所述第二掺杂层连接；
    所述感光元件设置有多个，相邻两个所述感光元件之间设置有隔离层，所述隔离层的厚度大于所述感光元件的厚度；所述隔离层包括形成在围绕所述感光元件，且厚度向靠近所述感光元件方向逐渐减小的凹陷区；
    所述第二电极层形成在所述隔离层上方，所述聚光元件位于所述第二电极层靠近保护屏的一侧，对应所述凹陷区设置。
  7. 如权利要求6所述的一种显示装置，其中，所述显示装置还包括与所述感光元件一一对应连接的读出主动开关，所述读出主动开关包括形成在所述读出主动开关上方的透明电极层；
    所述透明电极层和所述第一电极层通过同一制程形成。
  8. 如权利要求1所述的一种显示装置，其中，所述保护屏的厚度在0.07-0.5mm之间。
  9. 如权利要求1所述的一种显示装置，其中，所述显示面板包括：
    第一基板，所述第一基板上设置有主动开关阵列；
    与所述第一基板相对设置的第二基板；以及
    液晶层，设置在所述第一基板和所述第二基板之间；
    所述显示装置包括背光模组，为所述显示面板提供背光；
    其中，所述感光元件设置在所述第二基板与所述保护屏之间。
  10. 如权利要求9所述的一种显示装置，其中，所述第二基板包括像素单元，所述像素单元包括多个红色子像素、多个蓝色子像素、多个绿色子像素和多个白色子像素，所述感光元件与所述白色子像素对应设置。
  11. 如权利要求1所述的一种显示装置，其中，所述聚光元件为凸透镜或微透镜。
  12. 如权利要求11所述的一种显示装置，其中，所述凸透镜的直径设置为10-75um，透光率的范围为60％-90％。
  13. 如权利要求6所述的一种显示装置，其中，所述隔离层的使用半透掩膜板形成，所述半透掩模板包括三个部分，分别为：透光区、遮光区和半透区，所述遮光区形成隔离层厚度最大，所述透光区不形成隔离层，所述半透区形成厚度逐渐变化的凹陷区，所述凹陷区对应的透光率渐变，以形成弧形的所述凹陷区。
  14. 如权利要求6所述的一种显示装置，其中，多个所述聚光元件与所述保护屏之间设置封装层。
  15. 如权利要求6所述的一种显示装置，其中，所述隔离层与所述聚光元件之间设置遮光层，所述遮光层对应所述凹陷区设置。
  16. 一种显示装置，包括：
    保护屏，设置在所述显示装置的出光面；
    显示面板，与保护屏相对设置；以及
    感光元件，设置在所述显示面板和保护屏之间；
    其中，所述感光元件包括接收光线的感光面；所述感光面设置有聚光元件；
    所述感光元件包括向所述保护屏方向依次形成的第一电极层、第一掺杂层、本征层、第二掺杂层和第二电极层；
    所述第二掺杂层和第二电极层之间设置有保护层，所述保护层设置有过孔，所述第二电极层通过所述过孔与所述第二掺杂层连接；
    所述感光元件设置有多个，相邻两个所述感光元件之间设置有隔离层，所述隔离层的厚 度大于所述感光元件的厚度；所述隔离层包括形成在围绕所述感光元件，且厚度向靠近所述感光元件方向逐渐减小的凹陷区；
    所述第二电极层形成在所述隔离层上方，所述聚光元件位于所述第二电极层靠近保护屏的一侧，对应所述凹陷区设置；
    所述显示装置还包括与所述感光元件一一对应连接的读出主动开关，所述读出主动开关包括形成在所述读出主动开关上方的透明电极层；
    所述透明电极层和所述第一电极层通过同一制程形成。
  17. 一种触控器，包括：
    保护屏，设置在所述触控器的触摸面；以及
    感光元件，设置在一背光源和所述保护屏之间；
    其中，所述感光元件包括接收光线的感光面；所述感光元件的感光面设置有聚光元件。
  18. 如权利要求17所述的一种触控器，其中，所述感光元件包括向所述保护屏方向依次形成的第一电极层、第一掺杂层、本征层、第二掺杂层和第二电极层；
    所述第二掺杂层和第二电极层之间设置有保护层，所述保护层设置有过孔，所述第二电极层通过所述过孔与所述第二掺杂层连接；
    所述感光元件设置有多个，相邻两个所述感光元件之间设置有隔离层，所述隔离层的厚度大于所述感光元件的厚度；所述隔离层包括形成在围绕所述感光元件，且厚度向靠近所述感光元件方向逐渐减小的凹陷区；
    所述第二电极层形成在所述隔离层上方，所述聚光元件位于所述第二电极层靠近保护屏的一侧，对应所述凹陷区设置；
    所述隔离层的使用半透掩膜板形成，所述半透掩模板包括三个部分，分别为：透光区、遮光区和半透区，所述遮光区形成隔离层厚度最大，所述透光区不形成隔离层，所述半透区形成厚度逐渐变化的凹陷区，凹陷区对应的透光率渐变，以形成弧形的凹陷区。
  19. 如权利要求17所述的一种触控器，其中，所述聚光元件为凸透镜或微透镜；所述多个聚光元件与所述保护屏之间设置封装层；所述隔离层与所述聚光元件之间设置遮光层，所述遮光层对应所述凹陷区设置。
  20. 如权利要求19所述的一种触控器，其中，所述凸透镜的直径设置为10-75um，透光率的范围为60％-90％。
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