WO2018000935A1 - 显示组件和显示装置 - Google Patents

显示组件和显示装置 Download PDF

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Publication number
WO2018000935A1
WO2018000935A1 PCT/CN2017/083193 CN2017083193W WO2018000935A1 WO 2018000935 A1 WO2018000935 A1 WO 2018000935A1 CN 2017083193 W CN2017083193 W CN 2017083193W WO 2018000935 A1 WO2018000935 A1 WO 2018000935A1
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WO
WIPO (PCT)
Prior art keywords
layer
electrode
display
photosensitive
disposed
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PCT/CN2017/083193
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English (en)
French (fr)
Inventor
刘英明
董学
吕敬
王海生
丁小梁
吴俊纬
许睿
赵利军
李昌峰
贾亚楠
郭玉珍
王鹏鹏
刘伟
Original Assignee
京东方科技集团股份有限公司
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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/580,899 priority Critical patent/US10908445B2/en
Publication of WO2018000935A1 publication Critical patent/WO2018000935A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G02F1/133345—Insulating layers
    • 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
    • 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
    • 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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1347—Preprocessing; Feature extraction
    • G06V40/1359—Extracting features related to ridge properties; Determining the fingerprint type, e.g. whorl or loop

Definitions

  • the present invention belongs to the field of display technologies, and in particular, to a display component and a display device.
  • Fingerprint recognition has the advantages of high specificity, high speed, low price and high user acceptance. Fingerprint recognition technology is widely used in many fields, such as mobile phones, tablets and televisions in electronic equipment terminals; access control and safes in security protection systems.
  • Fingerprint recognition is usually an optical diffuse reflection method.
  • the light beam emitted by the light source is reflected by the finger and diffused by the finger.
  • the valley of the finger fingerprint (hereinafter referred to as the valley) and the peak (hereinafter referred to as the ridge) are diffusely reflected.
  • the light energy is different, the light energy of the valley is low relative to the light energy of the ridge, and the difference is used for fingerprint recognition.
  • fingerprint recognition has a wide range of uses, the accuracy of fingerprint recognition is currently not high, especially the redundancy of the structure of the device with both fingerprint recognition and touch function.
  • the present invention is capable of at least partially alleviating the above problems in the prior art, and provides a display assembly and a display device.
  • An aspect of the present invention provides a display assembly including a display panel having a plurality of pixel structures, the display assembly further including a package film disposed above the display panel and corresponding to each of the package films A control element and a photosensitive element connected to the control element are disposed at the pixel structure, and the photosensitive element performs fingerprint recognition according to the received reflected light reflected by the finger by the light emitted by the display panel.
  • the display panel and the control element and the photoreceptor disposed thereon are all disposed on one side of the substrate for carrying the display assembly.
  • the display assembly further includes a common electrode
  • the control element includes an output electrode
  • the photosensitive element includes a photosensitive layer and a first pole and a second pole that provide a bias voltage for the photosensitive layer
  • the control An output electrode of the element is a first pole of the photosensitive element
  • the common electrode is a second pole of the photosensitive element.
  • a touch electrode is further disposed on the photosensitive layer of the photosensitive element, and the touch electrode is respectively connected to the photosensitive layer and the common electrode, and the touch electrode covers at least one of the The area corresponding to the photosensitive layer.
  • control element is a thin film transistor including a gate electrode, a gate insulating layer, an active layer, and a source and a drain disposed in the same layer; the photosensitive layer in the photosensitive element One side is connected to the drain of the thin film transistor, and the other side of the photosensitive layer is connected to the common electrode.
  • the display component further includes a scan driver and a signal receiver, the scan driver is connected to a plurality of scan lines, and a gate of the thin film transistor of the same pair is connected to the same scan line for
  • the photosensitive element provides a clamping voltage;
  • the signal receiver is connected to the plurality of data lines, and the source of the thin film transistor of the same column is connected to the same data line for receiving a fingerprint sensing signal.
  • a protective layer is further disposed above the active layer between the source, the drain, and the source and the drain, and the protective layer is formed of an opaque metal material. .
  • a protective electrode is disposed between the photosensitive layer of the photosensitive element and the touch electrode disposed thereon, and the pattern of the protective electrode covers at least the pattern of the photosensitive layer.
  • the touch electrode and the protection electrode are both formed of a transparent conductive material.
  • the gate is insulated from the common electrode and disposed in the same layer;
  • the gate insulating layer is provided with a first via hole in a region corresponding to the common electrode, and a connection electrode is formed in the first via hole in the same layer as the source and the drain, the connection electrode and the connection electrode
  • the common electrode is connected but insulated from the source and the drain;
  • a passivation layer and a resin layer are disposed above the source electrode and the drain electrode and the connection electrode, and the passivation layer and the resin layer are provided with a second via hole in a region corresponding to the connection electrode.
  • the resin layer is provided with a third via hole corresponding to the photosensitive layer, and a touch electrode is formed on the same layer above the passivation layer and in the second via hole and the third via hole. The touch electrode is connected to the common electrode through the connection electrode.
  • the gate and the common electrode are made of the same material and formed in the same patterning process
  • the source, the drain, and the connection electrode are formed of the same material and are formed in the same patterning process.
  • the package film is formed on the display side of the display panel by printing.
  • the display panel is divided into a plurality of pixel regions, each of the pixel structures is correspondingly disposed in a pixel region, and the control element and the photosensitive element are disposed between adjacent pixel regions. Clearance area.
  • the pixel region is disposed in a recess with respect to the gap region.
  • the display panel is a liquid crystal display panel
  • each of the pixel structures includes a color film substrate disposed opposite to each other, an array substrate, and liquid crystal molecules disposed between the color filter substrate and the array substrate. Also including a driving thin film transistor that supplies a driving voltage to the liquid crystal molecules;
  • the display panel is an OLED display panel
  • each of the pixel structures includes an OLED device and a driving thin film transistor that supplies a driving current to the OLED device.
  • the photosensitive layer in the photosensitive element comprises a P-type silicon layer, an intrinsic layer and an N-type silicon layer which are sequentially disposed.
  • the P-type silicon layer, the intrinsic layer and the N-type silicon layer are respectively formed by printing.
  • Another aspect of the present invention provides a display device including the above display assembly.
  • FIG. 1 is a schematic structural view of a display assembly in Embodiment 1 of the present invention.
  • FIG. 2 is a schematic structural view of a control element and a display assembly of the photosensitive element above the package film of FIG. 1;
  • FIG. 3 is a schematic structural view of the control element and the photosensitive element of Figure 2;
  • FIG. 4 is a schematic structural view of a display assembly including the control element, the photosensitive element, and the touch electrode of FIG. 2;
  • Figure 5 is a schematic view showing the operation of the display assembly in the first embodiment of the present invention.
  • 1-display panel 1a-pixel display structure; 1b-pixel control layer;
  • 3-control element 31-gate; 32-gate insulating layer; 33-active layer; 34-source; 35-drain; 36-first passivation layer; 37-protective layer; 38-resin layer; 39-second passivation layer;
  • 11-scan driver 111-scan line; 12-signal receiver; 121-data line; 13-touch line.
  • the embodiment provides a display component, which realizes optical fingerprint recognition based on the display panel, and can accurately identify the valley of the fingerprint and the ridge of the fingerprint by setting the photosensitive element and the corresponding control element above the display panel having the display function. Has a more accurate fingerprint recognition effect; by forming on the photosensitive element and the corresponding control element
  • the touch electrode pattern can also realize the touch function, and the formed display component has a simple structure and is easy to implement.
  • the display component includes a display panel 1 having a plurality of pixel structures, and a package film 2 is disposed above the display panel 1 , and the package film 2 is provided with a control element 3 above each pixel structure and a photosensitive element 4 connected to the control element 3, the control element 3 supplies a clamping voltage to the photosensitive element 4, and the photosensitive element 4 performs fingerprinting according to the received reflected light of the light emitted by the display panel 1 (including the palm print, of course) Identification; in addition, by further setting the touch electrode pattern, the position information of the touch point can also be obtained.
  • the above display component has the functions of fingerprint recognition and touch, that is, the touch function can be realized on the basis of fingerprint recognition, or the fingerprint recognition function can be realized on the basis of touch.
  • the display device portion under the package film 2 in FIG. 1 is simply shown to include the pixel control layer 1b (eg, a driving thin film transistor) and the pixel display structure 1a (eg, an organic electroluminescent device). ).
  • Fig. 2 shows in detail the laminated structure of the control element 3 and the photosensitive element 4.
  • FIG. 2 shows the specific structure of the control element 3 and the photosensitive element 4.
  • the display assembly further includes a common electrode 5, and the control element 3 includes an output electrode.
  • the photosensitive element 4 includes a photosensitive layer 41 and first and second electrodes for supplying a bias voltage to the photosensitive layer 41, and the output of the control element 3
  • the electrode is the first pole of the photosensitive element 4, and the common electrode 5 is the second pole of the photosensitive element 4. That is, the output electrodes of the control element 3 are simultaneously shared as the electrodes of the photosensitive element 4 to simplify the structure; and at the same time, the current flowing through the photosensitive element 4 under the action of the clamping voltage of the control element 3 and the reference voltage of the common electrode 5. Detection to achieve fingerprint recognition.
  • the control element 3 may be a thin film transistor including a stacked gate 31, a gate insulating layer 32, an active layer 33, and a source 34 and a drain 35 disposed in the same layer; the photosensitive layer 41 of the photosensitive element 4 One side is connected to the drain 35 of the thin film transistor, and the other side of the photosensitive layer 41 is connected to the common electrode 5.
  • the photosensitive element 4 is a photodiode
  • the drain 35 of the thin film transistor serves as the anode of the photodiode
  • the common electrode 5 serves as the cathode of the photodiode.
  • the control element 3 is driven by the scan driver 11 and receives the fingerprint sensing signal through the signal receiver 12.
  • the scan driver 11 is connected to a plurality of scan lines 111, and the gates of the thin film transistors of the same pair are connected to the same scan line 111.
  • the signal receiver 12 is connected with a plurality of data lines 121, and the source and the same data line of the thin film transistors in the same column. 121 connected.
  • the thin film transistor switch of the corresponding row is controlled by the scan line 111 to provide a clamp voltage for the photosensitive element 4, and the corresponding data line 121 receives the fingerprint sensing signal, and performs fingerprint recognition using valley and ridge current difference.
  • the fingerprint signal is collected optically.
  • the light emitted by the pixel area is irradiated to the finger, and the light beam diffused by the finger is mostly reflected by the glass cover 92 to the photosensitive element 4, and the photosensitive element 4 is Receiving and converting into an electrical signal, the reflected light intensity of the valley and the ridge are inconsistent, causing the resistance of the photosensitive element 4 to be different, and the same power supply voltage causes the current of the data line 121 to be inconsistent, thereby identifying the corresponding positions of the valley and the ridge.
  • a touch electrode 7 is further disposed above the photosensitive layer 41 of the photosensitive element 4, and the touch electrode 7 is respectively connected to the photosensitive layer 41 and the common electrode 5, and the touch electrode 7 covers at least a region corresponding to the photosensitive layer 41.
  • the touch electrode 7 can be disposed in a plate shape, and covers the control element 3 and the photosensitive element 4 corresponding to the plurality of pixel structures to form a self-capacitive touch detection.
  • the protective electrode 8 is disposed above the photosensitive layer 41 and below the touch electrode 7, and the pattern of the protective electrode 8 covers at least the pattern of the photosensitive layer 41.
  • the touch electrode 7 and the guard electrode 8 are formed of a transparent conductive material.
  • the protective electrode 8 is formed of a transparent conductive material, which does not affect the display, and can protect the photodiode not only in the patterning process for forming the touch electrode (for example, preventing the influence of the etching solution on the photosensitive layer 41 in the etching step), Moreover, it can serve as a contact electrode between the common electrode 5 and the photosensitive layer 41 to ensure an electrical connection effect between the two.
  • the gate electrode 31 is insulated from the common electrode 5 and disposed in the same layer; the gate insulating layer 32 is provided with a first via hole in a region corresponding to the common electrode 5, and is in the same layer as the source electrode 34 and the drain electrode 35 in the first via hole.
  • Forming the connection electrode 6, the connection electrode 6 is connected to the common electrode 5 but insulated from the source 34 and the drain 35, respectively; the source 34 and the drain 35 are connected
  • a first passivation layer 36 and a resin layer 38 are disposed above the electrode 6.
  • the first passivation layer 36 and the resin layer 38 are provided with a second via hole in a region corresponding to the connection electrode 6 (to simultaneously penetrate the first passivation layer 36).
  • the resin layer 38 is provided with a third via hole corresponding to the photosensitive layer 41, and is formed in the same layer above the first passivation layer 36 and in the second via hole and the third via hole.
  • the touch electrode 7 and the connection electrode 6 connect the touch electrode 7 to the common electrode 5.
  • connection electrode 6 and the touch electrode 7 are formed in different patterning processes, and the connection electrode 6 is mainly used to connect one of the electrodes of the photosensitive element 4 and the touch electrode 7, and a transparent conductive material or an opaque conductive material may be used.
  • the touch electrode 7 is usually formed of a transparent conductive material.
  • the conductive portion between the photosensitive layer 41 of the photosensitive member 4 and the cathode forms the touch electrode 7, that is, when the reference voltage of the common electrode 5 is introduced to the photosensitive layer 41, a contact is formed between the protective electrode 8 and the connection electrode 6.
  • the pattern of the control electrode 7 not only realizes fingerprint recognition but also realizes a touch function.
  • the touch electrodes 7 in the same row are connected to a touch line 13 (shown by a broken line in FIG. 4) to realize excitation signal transmission and touch signal reception, and the principle of self-capacitive touch is realized and existing.
  • the principle of self-touch is the same and will not be described in detail here.
  • a protective layer 37 is further disposed above the active layer 36 between the source 34, the drain 35, and the source 34 and the drain 35.
  • the protective layer 37 is formed of an opaque metal material (for example, molybdenum Mo, aluminum Al, etc.).
  • the protective layer 37 can protect the channel between the source 34 and the drain 35 during the conduction process of the thin film transistor, prevent the performance of the control element 3 from being disturbed by light, and ensure the normal operation of the photosensitive element 4;
  • a second passivation layer 39 is further disposed on the upper surface, and the second passivation layer 39 can protect the touch electrode 7 and the layer structure below.
  • the gate electrode 31 and the common electrode 5 are formed of the same material and are formed in the same patterning process; the source electrode 34, the drain electrode 35 and the connection electrode 6 are formed of the same material and are formed in the same patterning process.
  • the same patterning process is used to implement graphics of multiple functional components to simplify the process.
  • the photosensitive element 4 may be a PIN photodiode.
  • the photosensitive layer 41 includes a P-type silicon layer, an intrinsic layer, and an N-type silicon layer which are sequentially disposed.
  • the P-type silicon layer is formed by mixing SiH 4 and B 2 H 6
  • the intrinsic layer is formed by SiH 4 or by mixing SiH 4 and H 2
  • the N-type silicon layer is formed by mixing SiH 4 , PH 3 and H 2 .
  • the P-type silicon layer, the intrinsic layer and the N-type silicon layer are respectively formed by printing, and the printing method can form the pattern more accurately and accurately.
  • the resistance As a kind of photosensitive element, PIN photodiode, when it is exposed to light, the resistance will decrease, the current will increase, and the stronger the light intensity, the smaller the resistance. Based on this principle, the brightness of the valley and the ridge of the fingerprint will be determined.
  • the area where the light intensity is relatively large corresponds to the ridge of the fingerprint, and the area where the light intensity is relatively small corresponds to the valley of the fingerprint.
  • the display panel 1 is divided into a plurality of pixel regions, each of which is provided with a pixel structure, and the control element 3 and the photosensitive element 4 are disposed in a gap region between adjacent pixel regions.
  • the gap region here is a dividing line with a certain width between one pixel region and other pixel regions adjacent thereto, so that an independent pixel structure is formed in any pixel region, and a single color (such as red, green, blue, and three primary colors) is completed. Displayed in any of red, green, white, red, green, blue, purple, and yellow.
  • the area of the display panel corresponding to the dividing line between the pixel areas is usually a non-transparent area, which is often used to set opaque wiring such as data lines and scanning lines; in order to obtain a better shading effect, a black matrix can also be set.
  • the control element 3 and the photosensitive element 4 are disposed in the non-transparent area, and it is ensured that the display effect of the display panel is not affected.
  • the display panel 1 may be a liquid crystal display panel.
  • the pixel display structure 1a of each pixel structure includes a color film substrate disposed opposite to each other, an array substrate, and liquid crystal molecules disposed between the color filter substrate and the array substrate, and the pixel control layer 1b.
  • the driving thin film transistor includes a driving voltage for providing liquid crystal molecules.
  • the display panel 1 may also be an OLED display panel.
  • Each pixel structure of the pixel display structure 1a includes an OLED device, and the pixel control layer 1b includes a driving current for the OLED device.
  • Drive thin film transistor is driven thin film transistor.
  • the encapsulating film 2 is formed on the display side of the display panel 1 by printing. That is, the display portion of the display panel may be packaged by Thin Film Encapsulation (TFE), and then the fingerprint recognition device and the touch device may be formed by printing or other manufacturing processes corresponding to the non-transmissive region thereon, thereby Through a simple process, the display panel can be protected, fingerprint recognition and touch positioning can be realized, and the formed product performance is relatively stable.
  • TFE Thin Film Encapsulation
  • control element 3 and the photosensitive element 4 are formed on the side of the cover glass 92 with respect to the substrate 91, and the display portion is formed on the side of the substrate 91 with respect to the cover glass 92, it is necessary to consider the cover glass.
  • the photosensitive area of the photosensitive element 4 such as a PIN photodiode is small, which in turn affects the accuracy of fingerprint recognition.
  • control element 3 and the photosensitive element 4 are integrally formed with the display portion and are formed on the same side of the cover glass 92, it is not necessary to consider the control element 3 and the photosensitive element 4 and the display portion pixel.
  • the alignment problem of the structure makes it possible to maximize the photosensitive area of the photosensitive element such as a PIN photodiode, ensuring good photosensitive characteristics and accuracy of fingerprint recognition.
  • the pixel area of the display panel is a recess, so that the light emitted from the pixel area is less likely to be irradiated to the photosensitive element 4.
  • the side of the surface, thereby obtaining a relatively collimated light orientation, does not affect the base value, so that the fingerprint can be accurately identified.
  • the display assembly further includes components such as a glue frame 10. As shown in FIG. 1, the seal frame 10 is disposed within the substrate 91 and the cover glass 92, and its function is the same as that in the existing display panel, and will not be described in detail herein.
  • the specific working principle of the fingerprint identification method of the display component of this embodiment is as follows:
  • Fingerprint information accumulation When the finger presses the surface of the display component, the finger valley (or ridge) reflects the light emitted from the display panel to the photodiode, and the photon causes the potential of the photodiode in the reverse bias state to decrease at a high potential. Since the light intensity of the light reflected by the valley and the ridge is different, the potential is lowered differently;
  • the display component realizes optical fingerprint recognition based on the display panel.
  • the reflected light intensity is different due to different valley-ridge contact surfaces, thereby causing different currents generated by the corresponding photosensitive elements.
  • the fingerprint recognition is realized, and the fingerprint recognition effect is more accurate.
  • the embodiment provides a display device including the display component of Embodiment 1.
  • the display device can be any product or component having display function such as electronic paper, mobile phone, tablet computer, television, display, notebook computer, digital photo frame, navigator and the like.
  • the display device provides a better unlocking experience for people through better fingerprint recognition.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Image Input (AREA)

Abstract

本发明属于显示技术领域，具体涉及一种显示组件和显示装置。该显示组件包括具有多个像素结构的显示面板，所述显示面板的上方设置有封装薄膜，所述封装薄膜在对应着每一所述像素结构的上方均设置有控制元件和与所述控制元件连接的感光元件，所述感光元件根据接收到的由所述显示面板发出的光的反射光进行指纹识别。该显示组件基于显示面板实现光学式指纹识别，通过在封装薄膜上方设置感光元件和相应的控制元件，较准确地实现指纹识别。

Description

显示组件和显示装置 技术领域
本发明属于显示技术领域，具体涉及一种显示组件和显示装置。
背景技术
指纹识别具有特异性高，速度快，价格低，用户接受度高等优点。指纹识别技术在诸多领域得到广泛应用，如电子设备终端中的手机、平板电脑和电视等；安全防护系统中的门禁和保险柜等。
指纹识别通常为光学漫反射方式，在指纹识别过程中，光源发出的光束照到手指后，被手指漫反射，手指指纹的波谷(以下称为谷)和波峰(以下称为脊)漫反射后的光能不同，谷的光能相对于脊的光能低，利用此差异来进行指纹识别。
虽然指纹识别有较广的用途，但是目前指纹识别的精度不高，尤其是兼具指纹识别和触控功能的器件结构冗余复杂。
可见，设计一种能对指纹进行准确识别的装置成为目前亟待解决的技术问题。
发明内容
本发明能够至少部分地减轻现有技术中存在的上述问题，提供一种显示组件和显示装置。
本发明的一方面提供了一种显示组件，包括具有多个像素结构的显示面板，所述显示组件还包括设置在所述显示面板上方的封装薄膜以及在所述封装薄膜上方对应着每一所述像素结构处设置的有控制元件和与所述控制元件连接的感光元件，所述感光元件根据接收到的由所述显示面板发出的光被手指反射后的反射光进行指纹识别。
可选地，所述显示面板以及其上方设置的控制元件和感光元 件均设置在用于承载显示组件的衬底的一侧上。
优选的是，所述显示组件还包括公共电极，所述控制元件包括输出电极，所述感光元件包括感光层以及为所述感光层提供偏置电压的第一极和第二极，所述控制元件的输出电极为所述感光元件的第一极，所述公共电极为所述感光元件的第二极。
优选的是，所述感光元件的所述感光层的上方还设置有触控电极，所述触控电极分别与所述感光层和所述公共电极连接，所述触控电极至少覆盖一个所述感光层对应的区域。
优选的是，所述控制元件为薄膜晶体管，所述薄膜晶体管包括层叠设置的栅极、栅绝缘层、有源层以及同层设置的源极和漏极；所述感光元件中所述感光层的一侧与所述薄膜晶体管的漏极连接，所述感光层的另一侧与所述公共电极连接。
优选的是，所述显示组件还包括扫描驱动器和信号接收器，所述扫描驱动器连接有多条扫描线，同行的所述薄膜晶体管的栅极与同一所述扫描线相连，用于为所述感光元件提供钳位电压；所述信号接收器连接有多条所述数据线，同列的所述薄膜晶体管的源极与同一所述数据线相连，用于接收指纹感测信号。
优选的是，对应着所述源极、所述漏极以及所述源极、所述漏极之间的所述有源层的上方还设置有保护层，所述保护层采用不透明金属材料形成。
优选的是，所述感光元件的所述感光层与其上方设置的触控电极之间还设置有保护电极，所述保护电极的图形至少覆盖所述感光层的图形。
优选的是，所述触控电极和所述保护电极均采用透明导电材料形成。
可选的是，所述栅极与所述公共电极绝缘且同层设置；
所述栅绝缘层在对应着所述公共电极的区域开设有第一过孔，在所述第一过孔内与所述源极和所述漏极同层形成连接电极，所述连接电极与所述公共电极连接但与所述源极和所述漏极分别绝缘；
所述源极和所述漏极与所述连接电极上方设置有钝化层和树脂层，所述钝化层和所述树脂层在对应着所述连接电极的区域开设有第二过孔，所述树脂层在对应着所述感光层的上方开设有第三过孔，在所述钝化层上方以及所述第二过孔内和所述第三过孔内同层形成触控电极，所述触控电极通过所述连接电极与所述公共电极连接。
可选的是，所述栅极与所述公共电极采用相同的材料、且在同一构图工艺中形成；
所述源极、所述漏极和所述连接电极采用相同的材料、且在同一构图工艺中形成。
可选的是，所述封装薄膜采用打印方式形成于所述显示面板的显示侧。
优选的是，所述显示面板划分为多个像素区，每一所述像素结构对应设置于一所述像素区，所述控制元件和所述感光元件设置于相邻所述像素区之间的间隙区域。
可选地，所述像素区相对于所述间隙区域设置在凹处。
可选的是，所述显示面板为液晶显示面板，每一所述像素结构均包括相对设置的彩膜基板、阵列基板以及设置于所述彩膜基板和所述阵列基板之间的液晶分子，还包括为所述液晶分子提供驱动电压的驱动薄膜晶体管；
或者，所述显示面板为OLED显示面板，每一所述像素结构均包括OLED器件以及为所述OLED器件提供驱动电流的驱动薄膜晶体管。
可选的是，所述感光元件中的所述感光层包括依次设置的P型硅层、本征层和N型硅层。
可选的是，所述P型硅层、所述本征层和所述N型硅层分别采用打印方式形成。
本发明的另一方面提供了一种显示装置，包括上述的显示组件。
附图说明
图1为本发明实施例1中显示组件的结构示意图；
图2为图1中封装薄膜上方的控制元件和感光元件的显示组件的结构示意图；
图3为图2中控制元件和感光元件的结构示意图；
图4为包括图2的控制元件、感光元件和触控电极的显示组件的结构示意图；
图5为本发明实施例1中显示组件的工作原理图；
附图标记中：
1－显示面板；1a－像素显示结构；1b－像素控制层；
2－封装薄膜；
3－控制元件；31－栅极；32－栅绝缘层；33－有源层；34－源极；35－漏极；36－第一钝化层；37－保护层；38－树脂层；39－第二钝化层；
4－感光元件；41－感光层；
5－公共电极；6－连接电极；7－触控电极；8－保护电极；
91－衬底；92－玻璃盖板；10－胶封框；
11－扫描驱动器；111－扫描线；12－信号接收器；121－数据线；13－触控线。
具体实施方式：
为使本领域技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明显示组件和显示装置作进一步详细描述。
实施例1：
本实施例提供一种显示组件，该显示组件基于显示面板实现光学式指纹识别，通过在具有显示功能的显示面板上方设置感光元件和相应的控制元件，能准确识别指纹的谷和指纹的脊，具有较准确的指纹识别效果；通过在感光元件和相应的控制元件上形 成触控电极图形，还能够实现触控功能，所形成的显示组件结构简单易于实现。
如图1所示，该显示组件包括具有多个像素结构的显示面板1，显示面板1的上方设置有封装薄膜2，封装薄膜2在对应着每一像素结构的上方均设置有控制元件3和与控制元件3连接的感光元件4，控制元件3为感光元件4提供钳位电压，感光元件4根据接收到的由显示面板1发出的光的反射光的情况进行指纹(当然也包括掌纹)识别；另外，进一步通过设置触控电极图形，还能获取触控点的位置信息。利用上述显示组件，兼具指纹识别和触控功能，即在指纹识别的基础上还能实现触控功能，或者说在触控的基础上还能实现指纹识别功能。
这里应该理解的是，为了简单起见，图1中封装薄膜2下方的显示器件部分只简单地示出为包括像素控制层1b(例如驱动薄膜晶体管)和像素显示结构1a(例如有机电致发光器件)。图2详细示出了控制元件3和感光元件4的叠层结构。
图2示出了控制元件3与感光元件4的具体结构。在图2中，显示组件还包括公共电极5，控制元件3包括输出电极，感光元件4包括感光层41以及为感光层41提供偏置电压的第一极和第二极，控制元件3的输出电极为感光元件4的第一极，公共电极5为感光元件4的第二极。也即，控制元件3的输出电极同时共用为感光元件4的电极，以简化结构；同时在控制元件3的钳位电压以及公共电极5的参考电压的作用下，通过流过感光元件4的电流的检测来实现指纹识别。
其中，控制元件3可以为薄膜晶体管，薄膜晶体管包括层叠设置的栅极31、栅绝缘层32、有源层33以及同层设置的源极34和漏极35；感光元件4中感光层41的一侧与薄膜晶体管的漏极35连接，感光层41的另一侧与公共电极5连接。优选的是，感光元件4为光敏二极管，薄膜晶体管的漏极35作为光敏二极管的阳极，公共电极5作为光敏二极管的阴极。利用控制元件3和感光元件4，在控制元件3的钳位电压以及公共电极5的参考电压的作 用下，实现光敏二极管的偏置电压的供给。
参考图3的平面图所示，本实施例的显示组件中，控制元件3通过扫描驱动器11进行驱动，并通过信号接收器12接收指纹感测信号。其中，扫描驱动器11连接有多条扫描线111，同行的薄膜晶体管的栅极与同一扫描线111相连；信号接收器12连接有多条数据线121，同列的薄膜晶体管的源极与同一数据线121相连。这里，通过扫描线111控制相应行的薄膜晶体管开关，为感光元件4提供钳位电压，相应的数据线121接收指纹感测信号，利用谷和脊电流差异性进行指纹识别。通过光学方式收集指纹信号，当手指按压玻璃盖板92时，像素区发出的光线照射到手指，由手指漫反射的光束绝大部分经过玻璃盖板92反射至感光元件4上方，由感光元件4接收并转换成电信号，谷和脊反射光强不一致，造成感光元件4的电阻不同，相同的电源电压下进而引起数据线121电流不一致，从而识别谷和脊的相应位置。
进一步的，感光元件4的感光层41的上方还设置有触控电极7，触控电极7分别与感光层41和公共电极5连接，触控电极7至少覆盖感光层41对应的区域。如图4所示，触控电极7可设置为板状，同时覆盖多个像素结构对应的控制元件3和感光元件4，形成自容触控检测。
优选的是，感光层41的上方与触控电极7的下方还对应设置有保护电极8，保护电极8的图形至少覆盖感光层41的图形。触控电极7和保护电极8采用透明导电材料形成。保护电极8采用透明导电材料形成，不会对显示造成影响，不仅可以在形成触控电极的构图工艺中对光敏二极管进行保护(例如防止刻蚀步骤中刻蚀液对感光层41的影响)，而且可作为公共电极5与感光层41之间的接触电极，保证二者的电性连接效果。
其中，栅极31与公共电极5绝缘且同层设置；栅绝缘层32在对应着公共电极5的区域开设有第一过孔，在第一过孔内与源极34和漏极35同层形成连接电极6，连接电极6与公共电极5连接但与源极34和漏极35分别绝缘；源极34和漏极35与连接 电极6上方设置有第一钝化层36和树脂层38，第一钝化层36和树脂层38在对应着连接电极6的区域开设有第二过孔(为同时贯通第一钝化层36和树脂层38的通孔)，树脂层38在对应着感光层41的上方开设有第三过孔，在第一钝化层36上方以及第二过孔内和第三过孔内同层形成触控电极7，连接电极6使得触控电极7与公共电极5连接。
在制备工艺中，连接电极6和触控电极7在不同的构图工艺中形成，连接电极6主要用于连接感光元件4的其中一个电极和触控电极7，可采用透明导电材料或不透明导电材料形成；而触控电极7通常采用透明导电材料形成。
这里，在感光元件4的感光层41与阴极之间的导电部分形成触控电极7，即在为感光层41引入公共电极5的参考电压时，在保护电极8和连接电极6之间形成触控电极7的图形，既实现了指纹识别，又可以实现触控功能。参考图4，同列的触控电极7与一根触控线13(图4中以虚线示出)连接，实现激励信号发射和触控信号接收，其实现自容触控的原理与现有的自容触控原理相同，这里不再详述。
另外，源极34、漏极35以及源极34、漏极35之间的有源层36的上方还设置有保护层37，保护层37采用不透明金属材料形成(例如钼Mo、铝Al等)，保护层37能对薄膜晶体管导通过程中源极34、漏极35之间的沟道进行保护，防止控制元件3的性能被光干扰，保证感光元件4的正常工作；触控电极7的上方还设置有第二钝化层39，第二钝化层39能对触控电极7及其以下的层结构起到保护作用。采用上述工艺，可以形成完整的控制元件3与感光元件4的结构，在指纹识别的同时，还能实现触控功能。
优选的是，栅极31与公共电极5采用相同的材料、且在同一构图工艺中形成；源极34、漏极35和连接电极6采用相同的材料、且在同一构图工艺中形成。这里，采用同一构图工艺实现多个功能部件的图形，以简化工艺。
本实施例的显示组件中，感光元件4可以为PIN光敏二极管。 优选的是，感光层41包括依次设置的P型硅层、本征层和N型硅层。其中，P型硅层采用SiH4、B2H6混合形成，本征层采用SiH4形成或采用SiH4、H2混合形成，N型硅层采用SiH4、PH3、H2混合形成。在制备过程中，P型硅层、本征层和N型硅层分别采用打印方式形成，采用打印方式可以更精确且准确地形成图形。PIN光敏二极管作为一种光敏元件，当其受到光照时，电阻会减小，电流会增大，并且光照强度越强，电阻就越小，以此原理进行指纹的谷和脊光照强度的判别，光照强度相对大的区域对应指纹的脊，光照强度相对小的区域对应指纹的谷。
通常情况下，显示面板1划分为多个像素区，每个像素区设置有一个像素结构，控制元件3和感光元件4设置于相邻像素区之间的间隙区域。这里的间隙区域即一个像素区与其相邻的其他像素区之间的具有一定宽度的分割界线，使得任一像素区内形成一个独立的像素结构，完成一个单色(如红绿蓝三基色或者红绿蓝白或者红绿蓝紫青黄等中的任一个颜色)显示。显示面板中对应着像素区之间的分割界线的区域通常为非透光区，常用于设置数据线、扫描线等不透明布线；为了获得较好的遮光效果，还可以设置黑矩阵。本实施例中，将控制元件3和感光元件4设置在非透光区，可以确保不影响显示面板的显示效果。
例如，显示面板1可以为液晶显示面板，每一像素结构的像素显示结构1a均包括相对设置的彩膜基板、阵列基板以及设置于彩膜基板和阵列基板之间的液晶分子，像素控制层1b包括为液晶分子提供驱动电压的驱动薄膜晶体管；作为选择，显示面板1也可以为OLED显示面板，每一像素结构的像素显示结构1a均包括OLED器件，像素控制层1b包括为OLED器件提供驱动电流的驱动薄膜晶体管。
可选的是，封装薄膜2采用打印方式形成于显示面板1的显示侧。即，可以通过薄膜封装技术(Thin Film Encapsulation，简称TFE)封装显示面板的显示部分，然后再在其上对应着非透光区域通过打印或者其他制作工艺形成指纹识别器件与触控器件，从而， 通过简单的工艺，既能对显示面板起到保护作用，又可以实现指纹识别和触控定位，所形成的产品性能也比较稳定。
如果将控制元件3和感光元件4制作在玻璃盖板92的相对于衬底91的一侧上，而显示部分制作在衬底91相对于玻璃盖板92的一侧上，则需考虑玻璃盖板92上的控制元件3和感光元件4与衬底91上显示部分的像素结构的对位偏差问题。为了获得较高的产品良率，则需要将感光元件4的面积做得比理论上完全对位准确时的面积小，才不会在存在对位偏差的情况下影响显示，而这必然将减小诸如PIN光敏二极管的感光元件4的感光面积，进而影响指纹识别准确度。
本实施例的显示组件中，由于将控制元件3和感光元件4与显示部分制作为一体，且均形成在玻璃盖板92的同一侧，因此无需考虑控制元件3和感光元件4与显示部分像素结构的对位问题，因此可以实现诸如PIN光敏二极管的感光元件的感光面积最大化，保证良好的光敏特性和指纹识别的准确度。
同时，本实施例的显示组件中，由于在显示器件的封装薄膜2上方非显示区域制作感光元件4，显示面板的像素区为凹处，这样像素区发出的光线更不容易照射到感光元件4的侧面，从而获得相对准直的光取向，不会对基准值(base)造成影响，从而能对指纹进行准确的识别。
容易理解的是，该显示组件还包括胶封框10等部件。如图1所示，胶封框10设置于衬底91与玻璃盖板92之内，其功能与现有显示面板中的功能相同，这里不再详述。
如图5所示，本实施例的显示组件的指纹识别方法的具体工作原理如下：
1)重置：将作为控制元件3的薄膜晶体管的栅极打开，先给光敏二极管P端(阳极)提供一个电压V1，然后关闭栅极，该薄膜晶体管的漏极电位被锁住为V1，与光敏二极管的阴极电连接的公共电极为参考地或提供低电压V0，此刻PIN光敏二极管处于反偏状态；
2)指纹信息积累：当手指按压显示组件表面时，手指谷(或脊)将从显示面板发出的光反射至光敏二极管处，光子会引起处于反偏状态的光敏二极管的高电位处电位降低，由于谷和脊反射后的光线光强不同，则电位降低不同；
3)指纹读取：当薄膜晶体管的栅极再次开启，由于不同漏极电位下，光敏二极管会输出不同电流值，进而用于判断谷脊位置，实现指纹识别。
该显示组件基于显示面板实现光学式指纹识别，通过在封装薄膜上方设置感光元件和相应的控制元件，由于谷与脊接触面不同，造成反射光强不同，进而引起相应的感光元件产生的电流不同，从而判断谷和脊的位置，实现指纹识别，具有较准确的指纹识别效果。
实施例2：
本实施例提供一种显示装置，该显示装置包括实施例1的显示组件。
该显示装置可以为：电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。该显示装置通过更佳的指纹识别效果，能为人们提供更好的解锁体验。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (18)

  1. 一种显示组件，包括具有多个像素结构的显示面板，其中，
    所述显示组件还包括设置在所述显示面板的上方的封装薄膜，以及在所述封装薄膜上方对应着每一所述像素结构处设置的控制元件和与所述控制元件连接的感光元件，所述感光元件根据接收到的由所述显示面板发出的光被手指反射后的反射光进行指纹识别。
  2. 根据权利要求1所述的显示组件，其中，所述显示面板以及其上方设置的控制元件和感光元件均设置在用于承载显示组件的衬底的一侧上。
  3. 根据权利要求2所述的显示组件，还包括公共电极，所述控制元件包括输出电极，所述感光元件包括感光层以及为所述感光层提供偏置电压的第一极和第二极，所述控制元件的输出电极为所述感光元件的第一极，所述公共电极为所述感光元件的第二极。
  4. 根据权利要求3所述的显示组件，其中，所述感光元件的所述感光层的上方还设置有触控电极，所述触控电极分别与所述感光层和所述公共电极连接，所述触控电极至少覆盖一个所述感光层对应的区域。
  5. 根据权利要求3所述的显示组件，其中，所述控制元件为薄膜晶体管，所述薄膜晶体管包括层叠设置的栅极、栅绝缘层、有源层以及同层设置的源极和漏极；所述感光元件中所述感光层的一侧与所述薄膜晶体管的漏极连接，所述感光层的另一侧与所述公共电极连接。
  6. 根据权利要求5所述的显示组件，还包括扫描驱动器和信 号接收器，所述扫描驱动器连接有多条扫描线，同行的所述薄膜晶体管的栅极与同一所述扫描线相连，用于为所述感光元件提供钳位电压；所述信号接收器连接有多条所述数据线，同列的所述薄膜晶体管的源极与同一所述数据线相连，用于接收指纹感测信号。
  7. 根据权利要求5所述的显示组件，其中，对应着所述源极、所述漏极以及所述源极、所述漏极之间的所述有源层的上方还设置有保护层，所述保护层采用不透明金属材料形成。
  8. 根据权利要求4所述的显示组件，其中，所述感光元件的所述感光层与其上方设置的触控电极之间还设置有保护电极，所述保护电极的图形至少覆盖所述感光层的图形。
  9. 根据权利要求8所述的显示组件，其中，所述触控电极和所述保护电极均采用透明导电材料形成。
  10. 根据权利要求7所述的显示组件，其中，所述栅极与所述公共电极绝缘且同层设置；
    所述栅绝缘层在对应着所述公共电极的区域开设有第一过孔，在所述第一过孔内与所述源极和所述漏极同层形成连接电极，所述连接电极与所述公共电极连接但与所述源极和所述漏极分别绝缘；
    所述源极和所述漏极与所述连接电极上方设置有钝化层和树脂层，所述钝化层和所述树脂层在对应着所述连接电极的区域开设有第二过孔，所述树脂层在对应着所述感光层的上方开设有第三过孔，在所述钝化层上方以及所述第二过孔内和所述第三过孔内同层形成触控电极，所述触控电极通过所述连接电极与所述公共电极连接。
  11. 根据权利要求10所述的显示组件，其中，所述栅极与所述公共电极采用相同的材料、且在同一构图工艺中形成；
    所述源极、所述漏极和所述连接电极采用相同的材料、且在同一构图工艺中形成。
  12. 根据权利要求1所述的显示组件，其中，所述封装薄膜采用打印方式形成于所述显示面板的显示侧。
  13. 根据权利要求1-12任一项所述的显示组件，其中，所述显示面板划分为多个像素区，每一所述像素结构对应设置于一所述像素区，所述控制元件和所述感光元件设置于相邻所述像素区之间的间隙区域。
  14. 根据权利要求13所述的显示组件，其中，所述像素区相对于所述间隙区域设置在凹处。
  15. 根据权利要求1-14任一项所述的显示组件，其中，所述显示面板为液晶显示面板，每一所述像素结构均包括相对设置的彩膜基板、阵列基板以及设置于所述彩膜基板和所述阵列基板之间的液晶分子，所述阵列基板中包括为所述液晶分子提供驱动电压的驱动薄膜晶体管；
    或者，所述显示面板为OLED显示面板，每一所述像素结构均包括OLED器件以及为所述OLED器件提供驱动电流的驱动薄膜晶体管。
  16. 根据权利要求3-15任一项所述的显示组件，其中，所述感光元件中的所述感光层包括依次设置的P型硅层、本征层和N型硅层。
  17. 根据权利要求16所述的显示组件，其中，所述P型硅层、 所述本征层和所述N型硅层分别采用打印方式形成。
  18. 一种显示装置，包括权利要求1-17任一项所述的显示组件。
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