WO2018176760A1 - 一种柔性显示面板、显示装置及柔性显示面板的制作方法 - Google Patents
一种柔性显示面板、显示装置及柔性显示面板的制作方法 Download PDFInfo
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- WO2018176760A1 WO2018176760A1 PCT/CN2017/102744 CN2017102744W WO2018176760A1 WO 2018176760 A1 WO2018176760 A1 WO 2018176760A1 CN 2017102744 W CN2017102744 W CN 2017102744W WO 2018176760 A1 WO2018176760 A1 WO 2018176760A1
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- insulating layer
- layer
- display panel
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- flexible substrate
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Images
Classifications
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- G—PHYSICS
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- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- 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
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
- H01L27/1244—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits for preventing breakage, peeling or short circuiting
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- 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
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1248—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or shape of the interlayer dielectric specially adapted to the circuit arrangement
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- 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
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
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- 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
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- H10K59/124—Insulating layers formed between TFT elements and OLED elements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present disclosure relates to the field of display technologies, and in particular, to a flexible display panel, a display device, and a method of fabricating the flexible display panel.
- the display market is currently booming, and as consumers continue to increase demand for various display products such as laptops, smartphones, TVs, tablets, smart watches and fitness wristbands, more new displays will emerge in the future. product.
- the full-screen, borderless display product can give users a better viewing experience and will definitely set off a new consumer market.
- Pad Bending is the core technology for full-screen, borderless display products.
- Embodiments of the present disclosure provide a flexible display panel, a display device, and a method of fabricating the flexible display panel.
- a flexible display panel includes: a flexible substrate, a conductive layer disposed on the flexible substrate display area, and a plurality of traces disposed on the edge of the flexible substrate substrate And an inorganic insulating layer disposed between the conductive layer and the plurality of traces and the flexible substrate; the conductive layer is electrically connected to the plurality of traces and disposed in the same layer;
- first organic insulating layer disposed at least at an edge bending region of the flexible substrate; the first organic insulating layer is located between the plurality of traces and the inorganic insulating layer and the first organic insulating layer
- the material is a cured photoresist.
- the material of the first organic insulating layer is photosensitive polyimide.
- the first organic insulating layer is further disposed on the flexible substrate display region; and the first organic insulating layer is located Between the conductive layer and the inorganic insulating layer.
- the conductive layer is a source/drain metal layer
- the inorganic insulating layer includes a gate insulating layer and an interlayer insulating layer.
- the first organic insulating layer is used to pattern the gate insulating layer and the interlayer insulating layer.
- the first organic insulating layer has a via pattern occupying an area larger than a via pattern of the interlayer insulating layer. The area.
- the method further includes: a second organic insulating layer disposed at least at an edge bending region of the flexible substrate substrate; and the second An organic insulating layer is over the plurality of traces.
- the second organic insulating layer and the flat layer, the spacer layer or the pixel disposed on the display area of the flexible substrate Define layer layer settings.
- the method further includes: an organic electroluminescent diode or quantum dot illumination disposed on the conductive layer of the flexible substrate display region diode.
- An embodiment of the present disclosure further provides a display device comprising: the above flexible display panel.
- the embodiment of the present disclosure further provides a method for manufacturing a flexible display panel, including:
- a conductive layer is formed on the inorganic insulating layer of the flexible substrate display region, and a plurality of traces are formed on the first organic insulating layer of the flexible substrate substrate edge bent region.
- the at least the photoresist film layer of the flexible substrate substrate edge bending region is cured to form a first
- the organic insulating layer specifically includes:
- the flexible substrate substrate edge bending region and the photoresist substrate layer of the flexible substrate display region are cured to form a first organic insulating layer.
- the photoresist film is simultaneously applied to the flexible substrate substrate edge bending region and the flexible substrate substrate display region.
- the method further includes:
- the via pattern of the photoresist film layer is subjected to ashing treatment so that the area occupied by the via pattern of the first organic insulating layer is larger than the area occupied by the via pattern of the inorganic insulating layer.
- a conductive layer is formed on the inorganic insulating layer of the flexible substrate display region while being at the edge of the flexible substrate After forming a plurality of traces on the first organic insulating layer of the bending region, the method further includes:
- a second organic insulating layer is formed on the plurality of traces of the edge of the flexible substrate substrate bending region, and include:
- a flat layer, a spacer layer or a pixel defining layer is formed on the flexible substrate display region.
- FIG. 1A is a schematic structural view of a flexible display panel according to a comparative example of the present disclosure
- FIG. 1B is a schematic structural view showing an enlarged portion of a broken line in FIG. 1A;
- FIG. 2 is a second schematic structural view of a flexible display panel in the prior art
- FIG. 3 is a schematic structural diagram of a flexible display panel according to Embodiment 1 of the present disclosure.
- FIG. 4 is a schematic structural diagram of a flexible display panel according to Embodiment 2 of the present disclosure.
- FIG. 5 is a schematic structural diagram of a flexible display panel according to Embodiment 3 of the present disclosure.
- FIG. 6 is a flowchart of a method for fabricating a flexible display panel according to Embodiment 4 of the present disclosure
- FIG. 7 is a schematic structural diagram of a corresponding flexible display panel after performing each step in the method for fabricating a flexible display panel according to Embodiment 4 of the present disclosure
- FIG. 8 is a flowchart of a method for fabricating a flexible display panel according to Embodiment 5 of the present disclosure
- FIG. 9 is a flowchart of a method for fabricating a flexible display panel according to Embodiment 6 of the present disclosure.
- a flexible display panel, a display device, and a method for fabricating the flexible display panel provided by the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
- each film layer in the drawings do not reflect the true scale of the flexible display panel, and are merely intended to illustrate the disclosure.
- FIGS. 1A and 1B illustrate a flexible display panel according to a comparative example of the present disclosure, as shown in FIGS. 1A and 1B, due to the greater brittleness of the inorganic insulating layer 101, Pad Bending causes an inorganic insulating layer to display a product bending region.
- a crack S occurs in 101, and the crack S further spreads to the signal line layer 102, resulting in display failure.
- the insulating layer 101 generates a crack S, as shown in FIG.
- a flexible display panel as shown in FIG. 3, includes a flexible substrate 301, a conductive layer 302 disposed on the flexible substrate display area A, and a bend disposed on the edge of the flexible substrate. a plurality of traces 303 of the region B, and an inorganic insulating layer 304 disposed between the conductive layer 302 and the plurality of traces 303 and the flexible substrate 301; the conductive layer 302 is electrically connected to the plurality of traces 303 and disposed in the same layer
- the flexible display panel further includes:
- the first organic insulating layer 305 is disposed at least on the edge of the flexible substrate substrate bending portion B; the first organic insulating layer 305 is located between the plurality of traces 303 and the inorganic insulating layer 304 and the material of the first organic insulating layer 305 is cured After the photoresist.
- the photoresist has good bending properties and thermal stability.
- the photoresist may be a photosensitive polyimide, which is not limited herein.
- the first organic insulating layer 305 is disposed on the flexible substrate substrate edge bending region B, and the first organic insulating layer 305 is located in the plurality of traces 303 and inorganic Between the insulating layers 304; therefore, when the inorganic insulating layer 304 located at the edge bending portion B of the flexible substrate substrate is cracked, the first organic insulating layer 305 may be located between the plurality of traces 303 and the inorganic insulating layer 304.
- the shielding function effectively prevents the crack from spreading to the film layer where the plurality of traces 303 are located, thereby avoiding the display failure phenomenon.
- the material of the first organic insulating layer 305 is a cured photoresist
- the photoresist may be a photoresist coated during the process of fabricating the inorganic insulating layer 304, and thus, In the prior art, the technical solution of adding two Mask processes is added, and the present disclosure can save two Mask processes, thereby saving production cost and improving production efficiency.
- the conductive layer 302 is disposed in the same layer as the plurality of traces 303, so that the conductive layer 302 and the plurality of traces 303 can be simultaneously fabricated by using one patterning process, which simplifies The production process saves production costs.
- the conductive layer 302 is a source/drain metal layer and a signal line;
- the inorganic insulating layer 304 includes: a gate insulating layer 3041 and a layer.
- the insulating layer 3042 is interposed, and the interlayer insulating layer 3042 is located on a side of the gate insulating layer 3041 facing away from the flexible substrate 301.
- the first organic insulating layer 305 is used to form a via pattern of the gate insulating layer 3041 and the interlayer insulating layer 3042.
- the material of the conductive layer 302 and the plurality of traces 303 may be one of molybdenum, aluminum, tungsten, titanium, copper or a combination of alloys, which is not limited herein.
- the material of the inorganic insulating layer 304 may be one or a combination of silicon oxide and silicon nitride, which is not limited herein.
- the inorganic insulating layer 304 has a via pattern, and the via pattern of the inorganic insulating layer 304 is located in the flexible substrate display area A.
- the active layer 306 located between the flexible substrate 301 and the gate insulating layer 3041 and the gate insulating layer may be further included.
- the material of the active layer 306 may be a polysilicon semiconductor material, an amorphous silicon semiconductor material, an oxide semiconductor material or an organic semiconductor material, which is not limited herein.
- the material of the gate metal layer 307 and the gate scan line may be one of molybdenum, aluminum, tungsten, titanium, copper or a combination of alloys, which is not limited herein.
- the flat layer 308 may be further disposed on the conductive layer 302 of the flexible substrate display area A.
- the material of the flat layer 308 may be an organic insulating material such as polyacrylic resin, polyepoxy acrylic resin, photosensitive polyimide resin, polyester acrylate, urethane acrylate resin or phenolic epoxy acrylic resin. This is not limited.
- the flexible display panel provided in the second embodiment of the present disclosure is similar to the flexible display panel provided in the first embodiment of the present disclosure, and only the flexible display panel provided in the second embodiment of the present disclosure and the flexible display panel provided in the first embodiment of the present disclosure are provided. The differences are introduced, and the repetitions are not repeated here.
- the inorganic insulating layer 304 has a via pattern.
- the conductive layer 302 located at the via pattern may be broken, affecting the display effect of the flexible display panel.
- the first organic insulating layer 305 has a via pattern occupied by the area. It is larger than the area occupied by the via pattern of the interlayer insulating layer 3042. With this arrangement, the slope angle of the conductive layer 302 can be improved, thereby effectively preventing the conductive layer 302 from being broken at the via pattern.
- each film layer in the flexible display panel provided in the second embodiment of the present disclosure is the same as the material of each film layer in the flexible display panel provided in the first embodiment of the present disclosure, and details are not described herein.
- the flexible display panel provided in the third embodiment of the present disclosure is similar to the flexible display panel provided in the second embodiment of the present disclosure, and the flexible display panel provided in the third embodiment of the present disclosure is the same as the flexible display panel provided in the second embodiment of the present disclosure. The differences are introduced, and the repetitions are not repeated here.
- a second organic insulating layer 310 disposed at least on the edge portion B of the flexible substrate substrate is added; and the second organic insulating layer 310 is located above the plurality of traces 303, that is, The two organic insulating layers 310 are located on a side of the plurality of traces 303 facing away from the flexible substrate 301. In this way, the second organic insulating layer 310 can protect the plurality of traces 303 from scratches, thereby improving the quality of the display image.
- the second organic insulating layer 310 may be a separately provided film layer, or may be disposed in the same layer as the flat layer 308 of the flexible substrate display area A.
- a film layer is not limited herein.
- the second organic insulating layer 310 is disposed in the same layer as the flat layer 308, the second organic insulating layer 310 and the flat layer 308 can be simultaneously prepared by using one patterning process, which simplifies the preparation process and saves production cost.
- the second organic insulating layer 310 may also be disposed in the same layer as the spacer layer or the pixel defining layer. Not limited.
- each film layer in the flexible display panel provided in the third embodiment of the present disclosure is the same as the material of each film layer in the flexible display panel provided in the second embodiment of the present disclosure, and details are not described herein.
- the flexible display panel provided in Embodiment 1 of the present disclosure may be further improved, that is, only added to at least the flexible substrate.
- the second organic insulating layer 310 over the plurality of traces 303 of the substrate edge bending region B does not define the size of the via pattern of the first organic insulating layer 305 and the via pattern of the interlayer insulating layer 3042.
- the fourth embodiment of the present disclosure provides a method for manufacturing a flexible display panel. As shown in FIG. 6, the method may specifically include the following steps:
- At least the photoresist layer of the edge of the flexible substrate substrate is cured to form a first organic insulating layer
- the conductive layer is a source/drain metal layer and a signal line
- the inorganic insulating film layer is patterned by using a photoresist film layer to form an inorganic insulating layer.
- the pattern can be achieved in the following ways:
- the inorganic insulating film layer is patterned by using a photoresist film layer to form a gate insulating layer and an interlayer insulating layer.
- the inorganic insulating film layer is patterned by using a photoresist film layer, and before the interlayer insulating layer is formed, the method may further include: An active layer, a gate insulating layer, and a gate metal layer and a gate scan line are sequentially formed on the flexible substrate display region.
- step S604 at least the photoresist film layer in the edge bending region of the flexible substrate substrate is cured to form a first organic insulating layer, which can be realized by the following manner. :
- the photoresist film layer of the flexible substrate substrate edge bending region and the flexible substrate substrate display region is cured to form a first organic insulating layer.
- the step S605 in the above manufacturing method provided in the fourth embodiment of the present disclosure forms a conductive layer on the inorganic insulating layer of the flexible substrate display region, and the first organic layer in the edge of the flexible substrate substrate is bent.
- the method further includes: sequentially forming a planar layer and an organic electroluminescent diode or a quantum dot light emitting diode on the conductive layer of the flexible substrate display region.
- FIG. 7A to FIG. 7E the structure of the flexible display panel obtained by implementing the steps in the above manufacturing method provided in the fourth embodiment of the present disclosure is specifically provided.
- a flexible substrate 301 is provided, and an active layer 306, a gate insulating layer 3041, a gate metal layer 307, and a gate scan line (not shown) are sequentially formed on the flexible substrate 301, as shown in FIG. 7A. Show
- the interlayer insulating film layer of the flexible substrate display area A is etched by using the pattern of the exposed and developed photoresist film layer to form an interlayer insulating layer 3042 having a via pattern; and then the flexible substrate is simultaneously The substrate edge bending region and the photoresist film layer of the flexible substrate display region are cured to form a first organic insulating layer 305, as shown in FIG. 7C;
- a conductive layer 302 is formed on the interlayer insulating layer 3042 of the flexible substrate display region A, and a plurality of traces 303 are formed on the first organic insulating layer 305 of the flexible substrate substrate edge bent region B, as shown in FIG. 7D. Show
- a flat layer 308 and an organic electroluminescent diode or a quantum dot light emitting diode 309 are sequentially formed on the conductive layer 302 of the flexible substrate display area A as shown in FIG. 7E.
- the patterning process involved in forming each layer structure may include not only photoresist coating, mask masking, exposure, development, etching, and light. Part or all of the process, such as stripping, may also include other processes, which are specifically based on the pattern that forms the desired pattern in the actual manufacturing process, and are not limited herein.
- a post-baking process may also be included after development and prior to etching. The etching may be dry etching or wet etching, which is not limited herein.
- the content of the material of each of the film layers of the flexible display panel can be referred to the related content of the flexible display panel provided in the first embodiment of the present disclosure, and details are not described herein.
- the fifth embodiment of the present disclosure provides a method for fabricating a flexible display panel.
- the manufacturing method of the flexible display panel provided by the fifth embodiment of the present disclosure is similar to the manufacturing method of the flexible display panel provided by the fourth embodiment of the present disclosure, and the manufacturing method of the flexible display panel provided by the fifth embodiment of the present disclosure and the embodiment of the present disclosure The differences in the manufacturing methods of the flexible display panels provided by the four are introduced, and the repetitions will not be described again.
- step S604 in the method for fabricating the flexible display panel provided in the fourth embodiment of the present disclosure, at least the photoresist layer in the edge of the flexible substrate substrate is cured, and the first organic insulating layer is formed differently.
- step S604' after simultaneously curing the flexible substrate substrate edge bending region and the flexible substrate display region of the photoresist film layer, The photoresist film layer has a via pattern and is subjected to ashing treatment to form a first organic insulating layer, so that the area of the via pattern of the first organic insulating layer is larger than the area of the via pattern of the inorganic insulating layer. Establish a basis for the subsequent formation of a conductive layer.
- the content of the material of the film layer of the flexible display panel can be referred to the related content of the flexible display panel provided by the second embodiment of the present disclosure, and details are not described herein.
- Embodiment 6 of the present disclosure provides a method for fabricating a flexible display panel.
- the manufacturing method of the flexible display panel provided in the sixth embodiment of the present disclosure is similar to the manufacturing method of the flexible display panel provided in the fifth embodiment of the present disclosure, and the manufacturing method of the flexible display panel provided in the sixth embodiment of the present disclosure and the embodiment of the present disclosure The differences between the manufacturing methods of the flexible display panels provided by the five are introduced, and the repetitions will not be described again.
- the method further includes:
- the second organic insulating layer can protect a plurality of traces from being scratched, thereby improving the quality of the display image.
- the step S606 forms a second organic insulating layer on the plurality of traces of the flexible substrate substrate bending region, which can be specifically achieved by:
- a second organic insulating layer is formed on a plurality of traces of the flexible substrate substrate bending region while forming a flat layer on the conductive layer of the flexible substrate display region.
- the step S606 is in the method of manufacturing the flexible display panel provided in the sixth embodiment of the present disclosure
- the pixel organic layer of the flexible substrate display area A generally includes a flat layer, a spacer layer, and a pixel defining layer.
- the second organic insulating layer is formed on the plurality of traces of the flexible substrate substrate bending region, and can also be realized in the following manner:
- the second organic insulating layer is formed on the plurality of traces of the flexible substrate substrate bending region, and is not limited herein.
- the content of the material of each of the film layers of the flexible display panel may be referred to the related content of the flexible display panel provided in the third embodiment of the present disclosure, and details are not described herein.
- an embodiment of the present disclosure further provides a display device, including
- the flexible display panel provided by the embodiment of the present disclosure may be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
- a display function such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
- the display device reference may be made to the embodiment of the flexible display panel described above, and the repeated description is omitted.
- the flexible display panel includes: a flexible substrate, a conductive layer disposed on the flexible substrate display area, and disposed on the flexible substrate a plurality of traces of the edge bend region, and an inorganic insulating layer disposed between the conductive layer and the plurality of traces and the flexible substrate; the conductive layer is electrically connected to the plurality of traces and disposed in the same layer; and further includes: at least a first organic insulating layer disposed on the edge of the flexible substrate substrate; the first organic insulating layer is between the plurality of traces and the inorganic insulating layer; and the material of the first organic insulating layer is a cured photoresist.
- the first organic insulating layer is disposed between the plurality of traces and the inorganic insulating layer in the bent region at the edge of the flexible substrate; therefore, when located at the edge of the flexible substrate substrate When the inorganic insulating layer is cracked, the first organic insulating layer between the plurality of traces and the inorganic insulating layer can serve as a shielding function, thereby effectively preventing the crack from spreading to the film layer where the plurality of traces are located, thereby avoiding display failure. .
- the material of the first organic insulating layer is a cured photoresist
- the photoresist may be a photoresist coated during the process of fabricating the inorganic insulating layer, and thus, compared to the existing In the technology, two technical solutions of the Mask process are added, and the present disclosure can save two Mask processes, thereby saving production cost and improving production efficiency.
- the conductive layer is disposed in the same layer as the plurality of traces, so that the conductive layer and the plurality of traces can be simultaneously produced by using one patterning process, which simplifies the manufacturing process and saves production costs.
- a flexible display panel, a display device, and a manufacturing method of the flexible display panel comprising: a flexible substrate, a conductive layer disposed on the display region of the flexible substrate, disposed on the flexible substrate a plurality of traces of the edge of the substrate edge, and an inorganic insulating layer disposed between the conductive layer and the plurality of traces and the flexible substrate; the conductive layer is electrically connected to the plurality of traces and disposed in the same layer; And a first organic insulating layer disposed at least between the plurality of traces and the inorganic insulating layer; and the material of the first organic insulating layer is a cured photoresist.
- a first organic insulating layer is disposed on the edge of the flexible substrate substrate, and the first organic insulating layer is located between the plurality of traces and the inorganic insulating layer; therefore, when located at the edge of the flexible substrate substrate When the inorganic insulating layer is cracked, the first organic insulating layer between the plurality of traces and the inorganic insulating layer can serve as a shielding function, thereby effectively preventing the crack from spreading to the film layer where the plurality of traces are located, thereby avoiding display failure. .
- the photoresist may be a photoresist coated during the process of fabricating the inorganic insulating layer, and thus, compared to the existing In the technology, two technical solutions of the Mask process are added, and the present disclosure can save two Mask processes, thereby saving production cost and improving production efficiency.
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Abstract
Description
Claims (16)
- 一种柔性显示面板,包括:柔性衬底基板,设置于所述柔性衬底基板显示区的导电层,设置于所述柔性衬底基板边缘弯折区的多条走线,以及设置于所述导电层和所述多条走线与所述柔性衬底基板之间的无机绝缘层;所述导电层与所述多条走线电连接;所述柔性显示面板还包括:至少设置于所述柔性衬底基板边缘弯折区的第一有机绝缘层;所述第一有机绝缘层位于所述多条走线与所述无机绝缘层之间且所述第一有机绝缘层的材料为固化后的光刻胶。
- 如权利要求1所述的柔性显示面板,其中,所述第一有机绝缘层的材料为光敏聚酰亚胺。
- 如权利要求1所述的柔性显示面板,其中,所述第一有机绝缘层还设置于所述柔性衬底基板显示区;且所述第一有机绝缘层位于所述导电层与所述无机绝缘层之间。
- 如权利要求3所述的柔性显示面板,其中,所述导电层为源漏极金属层;所述无机绝缘层包括:栅绝缘层和层间绝缘层。
- 如权利要求4所述的柔性显示面板,其中,所述第一有机绝缘层用于对所述栅绝缘层和所述层间绝缘层进行构图。
- 如权利要求5所述的柔性显示面板,其中,所述第一有机绝缘层具有的过孔图案所占面积大于所述层间绝缘层具有的过孔图案所占面积。
- 如权利要求1所述的柔性显示面板,其中,还包括:至少设置于所述柔性衬底基板边缘弯折区的第二有机绝缘层;且所述第二有机绝缘层位于所述多条走线之上。
- 如权利要求7所述的柔性显示面板,其中,所述第二有机绝缘层与设置于所述柔性衬底基板显示区的平坦层、隔垫物层或像素定义层同层设置。
- 如权利要求1所述的柔性显示面板,其中,所述导电层与所述多条走线同层设置。
- 如权利要求1-9任一项所述的柔性显示面板,其中,还包括:设置于所述柔性衬底基板显示区的导电层之上的有机电致发光二极管或者量子点发光二极管。
- 一种显示装置,包括:如权利要求1-10任一项所述的柔性显示面板。
- 一种柔性显示面板的制作方法,包括:提供一柔性衬底基板;在所述柔性衬底基板显示区和边缘弯折区依次形成无机绝缘膜层和光刻胶膜层;采用所述光刻胶膜层对所述无机绝缘膜层进行构图形成无机绝缘层的图案;至少对所述柔性衬底基板边缘弯折区的所述光刻胶层进行固化处理,形成第一有机绝缘层;在所述柔性衬底基板显示区的所述无机绝缘层上形成导电层,同时在所述柔性衬底基板边缘弯折区的所述第一有机绝缘层上形成多条走线。
- 如权利要求12所述的制作方法,其中,所述至少对所述柔性衬底基板边缘弯折区的所述光刻胶膜层进行固化处理,形成第一有机绝缘层,具体包括:同时对所述柔性衬底基板边缘弯折区和所述柔性衬底基板显示区的所述光刻胶膜层进行固化处理,形成第一有机绝缘层。
- 如权利要求13所述的制作方法,其中,在同时对所述柔性衬底基板边缘弯折区和所述柔性衬底基板显示区的所述光刻胶膜层进行固化处理,形成第一有机绝缘层之后,还包括:对所述光刻胶膜层具有的过孔图案进行灰化处理,使所述第一有机绝缘层具有的过孔图案所占面积大于所述无机绝缘层具有的过孔图案所占面积。
- 如权利要求12所述的制作方法,其中,在所述柔性衬底基板显示区的所述无机绝缘层上形成导电层,同时在所述柔性衬底基板边缘弯折区的所述第一有机绝缘层上形成多条走线之后,还包括:在所述柔性衬底基板边缘弯折区的所述多条走线上形成第二有机绝缘层。
- 如权利要求15所述的制作方法,其中,在所述柔性衬底基板边缘弯折区的所述多条走线上形成第二有机绝缘层的同时,还包括:在所述柔性衬底基板显示区形成平坦层、隔垫物层或像素定义层。
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CN106486491A (zh) * | 2015-08-31 | 2017-03-08 | 乐金显示有限公司 | 背板基板及使用它的柔性显示器 |
CN106252380A (zh) * | 2016-08-31 | 2016-12-21 | 上海天马有机发光显示技术有限公司 | 柔性显示面板及装置 |
CN106972030A (zh) * | 2017-03-30 | 2017-07-21 | 京东方科技集团股份有限公司 | 一种柔性显示面板、显示装置及柔性显示面板的制作方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111180484A (zh) * | 2018-11-09 | 2020-05-19 | 乐金显示有限公司 | 显示装置 |
US11985884B2 (en) | 2018-11-09 | 2024-05-14 | Lg Display Co., Ltd. | Display device |
Also Published As
Publication number | Publication date |
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US20190287433A1 (en) | 2019-09-19 |
US10803776B2 (en) | 2020-10-13 |
CN106972030B (zh) | 2019-09-03 |
CN106972030A (zh) | 2017-07-21 |
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