WO2024007387A1 - 显示面板和电子装置 - Google Patents

显示面板和电子装置 Download PDF

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Publication number
WO2024007387A1
WO2024007387A1 PCT/CN2022/108835 CN2022108835W WO2024007387A1 WO 2024007387 A1 WO2024007387 A1 WO 2024007387A1 CN 2022108835 W CN2022108835 W CN 2022108835W WO 2024007387 A1 WO2024007387 A1 WO 2024007387A1
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WO
WIPO (PCT)
Prior art keywords
groove
sub
display panel
substrate
intervals
Prior art date
Application number
PCT/CN2022/108835
Other languages
English (en)
French (fr)
Inventor
潘耀鑫
冯托
姜***
Original Assignee
Tcl华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tcl华星光电技术有限公司 filed Critical Tcl华星光电技术有限公司
Priority to US17/796,651 priority Critical patent/US20240184158A1/en
Publication of WO2024007387A1 publication Critical patent/WO2024007387A1/zh

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Classifications

    • 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
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells

Definitions

  • the present application relates to the field of display technology, and in particular, to a display panel and an electronic device.
  • LCD Liquid Crystal Display
  • BM black matrix
  • the present application provides a display panel and an electronic device to alleviate the technical problem of water vapor intrusion paths in existing liquid crystal display panels.
  • An embodiment of the present application provides a display panel, which includes a display area and a non-display area surrounding the display area.
  • the display panel further includes:
  • a liquid crystal layer disposed between the first substrate and the second substrate;
  • a light-shielding layer is provided on the side of the second substrate facing the first substrate;
  • a frame sealant is disposed between the first substrate and the light-shielding layer and surrounds the liquid crystal layer, and the frame sealant includes a plurality of straight portions and a plurality of curved portions connected end to end, each of the The curved part is connected to two adjacent straight parts;
  • the light-shielding layer is formed with grooves in the area corresponding to the frame sealant.
  • the groove includes a first sub-groove, and the first sub-groove surrounds the display area.
  • the first sub-groove includes a plurality of first groove portions arranged at intervals, and the plurality of first groove portions are on a circular path surrounding the display area. They are arranged at intervals, and there is a first interval between two adjacent first groove portions.
  • the groove further includes a second sub-groove located on one side of the first sub-groove, and the second sub-groove is provided corresponding to the curved portion.
  • the second sub-groove includes a plurality of second groove portions arranged at intervals, and the plurality of second groove portions are on a circular path surrounding the display area. They are arranged at intervals, and there is a second interval between two adjacent second groove parts.
  • the first sub-groove includes a plurality of first groove portions arranged at intervals, and the plurality of first groove portions are on a circular path surrounding the display area. They are arranged at intervals in sequence, with a first interval between two adjacent first groove portions, and the first intervals and the second intervals are arranged in a staggered manner.
  • the groove further includes a third sub-groove located on a side of the first sub-groove away from the second sub-groove, and the third sub-groove corresponds to The bending portion is provided.
  • the second sub-groove is also provided corresponding to the straight line portion
  • the third sub-groove is also provided corresponding to the straight line portion
  • the third sub-groove includes a plurality of third groove portions arranged at intervals, and the plurality of third groove portions are on a circular path surrounding the display area. They are arranged at intervals, and there is a third interval between two adjacent third groove portions.
  • the first sub-groove includes a plurality of first groove portions arranged at intervals, and the plurality of first groove portions are on a circular path surrounding the display area. They are arranged at intervals in sequence, with a first interval between two adjacent first groove portions, and the first intervals and the third intervals are arranged in a staggered manner.
  • the second sub-groove includes a plurality of second groove portions arranged at intervals, and the plurality of second groove portions are on a circular path surrounding the display area. They are arranged at intervals in sequence, with a second interval between two adjacent second groove portions, and the second intervals and the third intervals are arranged in a staggered manner.
  • the lengths of the first space, the second space and the third space are all from 10 microns to 200 microns.
  • the first sub-groove, the second sub-groove and the third sub-groove all correspond to areas of the frame sealant away from the display area.
  • the groove further includes a fourth sub-groove located on a side of the third sub-groove away from the first sub-groove, and the fourth sub-groove Corresponding to the area of the frame sealant close to the display area.
  • the width of the first sub-groove, the second sub-groove, the third sub-groove and the fourth sub-groove ranges from 10 microns to 30 microns. Micron.
  • the groove penetrates the light-shielding layer.
  • the groove penetrates the light-shielding layer and extends into part of the second substrate.
  • the frame sealing glue is filled in the groove.
  • the cross-sectional shape of the groove includes a trapezoid, and the opening of the groove on the side close to the second substrate is smaller than the opening of the groove on the side away from the second substrate.
  • An embodiment of the present application also provides an electronic device, which includes a housing and a display panel of one of the foregoing embodiments.
  • the housing is formed with a receiving cavity, and the display panel is assembled in the receiving cavity.
  • grooves are provided on the light-shielding layer corresponding to the frame sealant to block the path for water vapor to enter the display panel through the light-shielding layer, thereby solving the problem of water vapor intrusion paths in existing liquid crystal display panels. The problem.
  • FIG. 1 is a schematic structural diagram of a top view of a display panel provided by an embodiment of the present application.
  • Figure 2 is a schematic cross-sectional structural diagram along A-A’ in Figure 1.
  • Figure 3 is a schematic top view of the groove arrangement in Figure 2.
  • FIG. 4 is a partially detailed structural diagram of the first substrate in FIG. 2 .
  • FIG. 5 is a schematic top view of the groove arrangement provided by the embodiment of the present application.
  • Figure 6 is another top structural schematic diagram of the groove arrangement provided by the embodiment of the present application.
  • Figure 7 is another top structural schematic diagram of the groove arrangement provided by the embodiment of the present application.
  • Figure 8 is another top structural schematic diagram of the groove arrangement provided by the embodiment of the present application.
  • FIG. 9 is another schematic cross-sectional structural diagram of a display panel provided by an embodiment of the present application.
  • FIG. 10 is a schematic cross-sectional structural diagram of an electronic device provided by an embodiment of the present application.
  • Figure 1 is a schematic structural diagram of a top view of a display panel provided by an embodiment of the present application.
  • Figure 2 is a schematic cross-sectional structural diagram along AA' in Figure 1.
  • Figure 3 is a schematic diagram of the groove in Figure 2.
  • Figure 4 is a partial detailed structural diagram of the first substrate in Figure 2.
  • the display panel 100 includes a display area AA and a non-display area NA surrounding the display area AA.
  • the display area AA is used to display pixels, and the non-display area NA is used to set packaging structures, edge wiring, etc.
  • the display panel 100 further includes a first substrate 10 and a second substrate 20 arranged opposite each other, and a liquid crystal layer 30 , a light shielding layer 40 and a sealing layer arranged between the first substrate 10 and the second substrate 20 .
  • 50 frame glue is arranged.
  • the liquid crystal layer 30 is arranged corresponding to the display area AA.
  • the light shielding layer 40 is disposed on the side of the second substrate 20 facing the first substrate 10 and corresponding to the non-display area NA.
  • the frame sealant 50 is disposed between the first substrate 10 and the light-shielding layer 40 and surrounds the liquid crystal layer 30 .
  • the light-shielding layer 40 is formed with a groove 41 in an area corresponding to the frame sealant 50 .
  • the first substrate 10 is an array substrate, and the second substrate 20 is a color filter substrate.
  • the first substrate 10 of the application may also be a GOA (Gate Driver on Array). , array substrate row driver) substrate or COA (Color-filter on Array, color filter on array) substrate, etc.
  • the frame sealing glue 50 is disposed between the first substrate 10 and the second substrate 20 and is located in the non-display area NA, and the frame sealing glue 50 is compared with The boundary of the first substrate 10 and the second substrate 20 is partially retracted toward the display area AA to avoid cutting the sealing glue when cutting the first substrate 10 and the second substrate 20 50 and produce fragments.
  • the frame sealing glue 50 is used to bond the first substrate 10 and the second substrate 20 so that the first substrate 10 and the second substrate 20 are combined together. At the same time, the frame sealing glue 50 also surrounds the liquid crystal layer 30 and is used to seal the liquid crystal layer 30 to prevent water vapor from entering the liquid crystal layer 30 .
  • the light shielding layer 40 is located on the side of the second substrate 20 facing the first substrate 10 and is disposed corresponding to the non-display area NA.
  • the material of the light-shielding layer 40 includes black matrix (BM), etc.
  • BM black matrix
  • the light-shielding layer 40 is used to block light and avoid light leakage in the non-display area NA of the display panel 100 .
  • the light-shielding layer 40 is in contact with one side of the frame sealing glue 50, and the installation area of the light-shielding layer 40 is larger than the installation area of the frame sealing glue 50, that is, the frame sealing glue 50 is in the second
  • the orthographic projection on the substrate 20 falls within the range of the orthographic projection of the light shielding layer 40 on the first substrate 10 . In this way, part of the light-shielding layer 40 is in contact with the outside world, and water vapor may enter the display panel 100 through the light-shielding layer 40 .
  • the light-shielding layer 40 is provided with a groove 41 in an area corresponding to the frame sealant 50 , and the groove 41 penetrates the light-shielding layer 40 , to block water vapor and cut off the path of water vapor intrusion.
  • the groove 41 is formed by drilling holes in the light shielding layer 40 , and the frame sealant 50 is filled in the groove 41 .
  • the cross-sectional shape of the groove 41 includes a trapezoid.
  • the opening of the groove 41 close to the second substrate 20 is smaller than the opening of the groove 41 away from the second substrate 20 .
  • the present application is not limited to this.
  • the present application may also insert a blocking structure into the groove 41 , and the blocking structure's ability to block water vapor is greater than the ability of the light-shielding layer 40 to block water vapor.
  • the groove 41 includes a first sub-groove 411 surrounding the display area AA, and the first sub-groove 411 is formed by The light-shielding layer 40 is formed by opening continuous grooves.
  • the width of the first sub-groove 411 ranges from 10 microns to 30 microns to ensure the performance of the first sub-groove 411 in blocking water vapor.
  • the width of the first sub-groove 411 is less than or equal to the width of the edge traces in the non-display area NA, so that the edge traces of the non-display area NA can compensate for the light-shielding function of the light-shielding layer 40 , wherein the width of the first sub-groove 411 may refer to the width D1 of the groove 41 shown in FIG. 2 .
  • first sub-groove 411 by drilling holes in the light-shielding layer 40 will cause light to leak from the holes in the light-shielding layer 40 , thereby affecting the display of the display area AA.
  • Providing the first sub-groove 411 with an appropriate width can block light from the edge wiring of the non-display area NA and improve light leakage at the holes in the light-shielding layer 40 .
  • the first sub-groove 411 corresponds to the area of the frame sealant 50 away from the display area AA to further improve the possible light leakage problem of the light-shielding layer 40 due to digging holes on the display area.
  • the influence of AA can also improve the reflection problem caused by edge wiring when making up for the light-shielding function of the light-shielding layer 40 .
  • the orthographic projection of the first sub-groove 411 on the second substrate 20 is located at the center line M of the orthographic projection of the frame sealant 50 on the second substrate 20 away from the display.
  • the holed area of the light-shielding layer 40 is kept away from the display area AA, that is, the area where the light-shielding layer 40 may leak light is away from the display area AA, so as to reduce the size of the light-shielding layer 40 The impact of light leakage on the display area AA.
  • the dividing line M refers to a virtual line that bisects the orthographic projection of the frame sealing glue 50 on the second substrate 20, so that the orthographic projection of the frame sealing glue 50 on the second substrate 20 is For example, the center line bisects the width D2 of the orthographic projection of the frame sealant 50 on the second substrate 20 .
  • the first sub-groove 411 provided in the light-shielding layer 40 is provided corresponding to the edge wiring, so that the edge wiring can replace part of the light-shielding layer 40 for light-shielding, so as to improve the light-shielding layer 40
  • the digging area leaks light, but the edge wiring will have the problem of reflected light, and the first sub-groove 411 is arranged away from the display area AA, thereby reducing the reflected light of the edge wiring. Impact on the display area AA.
  • first sub-groove 411 away from the display area AA can also facilitate the improvement of light leakage of the light-shielding layer 40 and the reflection of the edge wiring.
  • it can be The position corresponding to the first sub-groove 411 on the second substrate 20 is coated with black ink to shield it from light.
  • the display panel 100 further includes an alignment film layer 60 located on the side of the first substrate 10 facing the second substrate 20 and the side of the second substrate 20 facing the first substrate 10 .
  • the alignment film layer 60 is used to align the liquid crystal layer 30 so that the liquid crystal molecules of the liquid crystal layer 30 can be uniformly arranged and oriented so as to maintain a certain shape in the initial state.
  • the alignment film layer 60 is located in the area surrounded by the frame sealant 50 , wherein the alignment film layer 60 on the side of the second substrate 20 facing the first substrate 10 also covers the light shielding layer 40 on the first substrate 10 , and there is no overlap between the orthographic projection of the alignment film layer 60 on the first substrate 10 and the orthographic projection of the frame sealant 50 on the first substrate 10 to prevent the alignment film layer 60 from Contact with the outside world, thereby blocking the path for water vapor to enter the display panel 100 through the alignment film layer 60 , further improving the packaging effect of the display panel 100 .
  • the alignment film layer 60 can cause the liquid crystal molecules of the liquid crystal layer 30 to form an initial state, and the first substrate 10 can deflect the liquid crystal molecules of the liquid crystal layer 30 to control the brightness of the transmitted light to achieve the above. display on the display panel 100 .
  • the first substrate 10 includes a substrate 11 and a thin film transistor 12 and a pixel electrode 13 provided on the substrate 11 .
  • the pixel electrode 13 is electrically connected to the thin film transistor 12 .
  • the thin film transistor 12 is provided on the substrate 11 , and the substrate 11 includes a glass substrate or the like.
  • the thin film transistor 12 includes an active layer 121 , a gate electrode 122 , a source electrode 123 and a drain electrode 124 .
  • the first substrate 10 further includes a gate insulating layer 111 between the active layer 121 and the gate electrode 122 , and between the gate electrode 122 and the source electrode 123 and the drain electrode 124 The interlayer insulating layer 112 and the passivation layer 113 located between the source electrode 123 and the pixel electrode 13 .
  • the active layer 121 is located on the substrate 11
  • the gate insulating layer 111 covers the active layer 121 and the substrate 11 .
  • the gate 122 is disposed on the gate insulating layer 111 and corresponds to the channel region of the active layer 121 .
  • the interlayer insulating layer 112 covers the gate electrode 122 and the gate insulating layer 111 , the source electrode 123 and the drain electrode 124 are disposed on the interlayer insulating layer 112 , and the source electrode 123 and the drain electrode 124 are disposed on the interlayer insulating layer 112 .
  • the electrode 123 and the drain electrode 124 are respectively connected to both sides of the channel region of the active layer 121 .
  • the passivation layer 113 covers the source electrode 123 , the drain electrode 124 and the interlayer insulating layer 112 .
  • the pixel electrode 13 is disposed on the passivation layer 113 , is a pattern electrode, and is electrically connected to the drain electrode 124 of the thin film transistor 12 .
  • the structure of the thin film transistor 12 described in this application is not limited to this.
  • the thin film transistor 12 may also adopt a bottom gate, double gate, etc. structure.
  • the display panel 100 further includes a common electrode (not shown), which may be located on the first substrate 10 or the second substrate 20 .
  • the common electrode can also be arranged in the same layer or in a different layer than the pixel electrode 13 , but it is necessary to ensure that the common electrode and the pixel electrode 13 are insulated from each other. In this way, the driving voltage on the pixel electrode 13 is controlled by the thin film transistor 12 to form an electric field between the pixel electrode 13 and the common electrode, causing the liquid crystal molecules of the liquid crystal layer 30 to deflect, thereby achieving the above Pixel display of the display panel 100 .
  • the display panel 100 further includes an upper polarizer 70 located on the side of the second substrate 20 away from the first substrate 10, and an upper polarizer 70 located on the side away from the first substrate 10.
  • the lower polarizer 80 on one side of the second substrate 20 and the backlight module 90 on the side of the lower polarizer 80 away from the first substrate 10 .
  • the backlight module 90 provides backlight for the display panel 100 .
  • the backlight of the backlight module 90 is polarized by the lower polarizer 80 and then emitted to the liquid crystal layer 30 .
  • the liquid crystal molecules of the liquid crystal layer 30 are deflected under the action of the pixel electrode 13 and the common electrode, and the deflected liquid crystal molecules refract the backlight provided by the backlight module 90 to the second substrate 20.
  • a color film is provided on the second substrate 20 .
  • the color film allows the backlight to present different colors after passing through the second substrate 20 , and is polarized by the upper polarizer 70 before being emitted, so as to realize the display panel 100 pixel display.
  • the color filter is not limited to being disposed on the second substrate 20 .
  • the color filter is disposed on the first substrate 10 .
  • FIG. 5 is a schematic structural diagram of a top view of the groove arrangement provided by an embodiment of the present application.
  • the groove 41 also includes a second sub-groove 412 located on one side of the first sub-groove 411 and a second sub-groove 412 located on one side of the first sub-groove 411 and away from the second sub-groove 411 .
  • the third sub-groove 413 on one side of the groove 412, that is, the second sub-groove 412 and the third sub-groove 413 are located on opposite sides of the first sub-groove 411 to enhance the groove.
  • the groove 41 has the ability to block water vapor.
  • the frame sealing glue 50 includes a plurality of straight portions 52 and a plurality of curved portions 51 connected end to end. Each of the curved portions 51 is connected to two adjacent straight portions 52.
  • the second sub-section is The groove 412 and the third sub-groove 413 are both provided corresponding to the curved portion 51 , and the curved portion 51 is located at the corner of the display panel 100 .
  • the frame sealing glue 50 is usually formed through a coating process, and when forming the curved portion 51 of the frame sealing glue 50, since coating the glue material at the bend is compared with applying the glue material at the straight line, The process of cloth adhesive material is unstable, making it difficult to control the coating accuracy at the bend and the width of the coated adhesive material.
  • the upper polarizer 70 and the lower polarizer 80 of the display panel 100 will shrink after being used for a period of time, and the shrinkage stress is maximum at the corners of the display panel 100 .
  • the light-shielding layer 40 disposes the second sub-groove 412 and the third sub-groove 413 corresponding to the curved portion 51 to enhance the waterproof vapor intrusion capability at the corners of the display panel 100 .
  • the first sub-groove 411, the second sub-groove 412 and the third sub-groove 413 all correspond to the area of the frame sealant 50 away from the display area AA to further improve
  • the light-shielding layer 40 may have light leakage problems caused by digging holes that may have an impact on the display area AA. At the same time, it can also improve reflection problems caused by edge wiring when making up for the light-shielding function of the light-shielding layer 40 .
  • the width of the second sub-groove 412 is equal to the width of the first sub-groove 411
  • the width of the third sub-groove 413 is also equal to the width of the first sub-groove 411
  • the width of the third sub-groove 411 is also equal to the width of the first sub-groove 411
  • the distance between the second sub-groove 412 and the first sub-groove 411 is equal to the distance between the third sub-groove 413 and the first sub-groove 411 to facilitate the implementation of the process. Please refer to the above embodiment for other descriptions, which will not be described again here.
  • FIG. 6 is another top structural schematic diagram of a groove arrangement provided by an embodiment of the present application.
  • the second sub-groove 412 is also provided corresponding to the linear portion 52
  • the third sub-groove 413 is also provided corresponding to the linear portion 52, that is, the second sub-groove 413 is also provided corresponding to the linear portion 52.
  • the groove 412 surrounds the display area AA
  • the third sub-groove 413 also surrounds the display area AA to further enhance the water vapor blocking performance of the groove 41.
  • the structure of the grooves 41 in this embodiment adopts a discontinuous arrangement.
  • it avoids excessively reducing the distance between the light-shielding layer 40 and the second substrate 20. Contact area.
  • the first sub-groove 411 includes a plurality of first groove portions 4111 arranged at intervals, and the plurality of first groove portions 4111 are arranged at intervals on a circular path surrounding the display area AA. , there is a first interval 421 between two adjacent first groove portions 4111.
  • the second sub-groove 412 includes a plurality of second groove portions 4121 arranged at intervals.
  • the plurality of second groove portions 4121 are arranged at intervals on a circular path surrounding the display area AA, and are adjacent to each other.
  • the third sub-groove 413 includes a plurality of third groove portions 4131 arranged at intervals.
  • the plurality of third groove portions 4131 are arranged at intervals on a circular path surrounding the display area AA, and are adjacent to each other.
  • the first gaps 421 are also staggered with the third gaps 423.
  • the third gaps 423 are opposite to the second gaps 422. set up.
  • any one of the first interval 421, the second interval 422 and the third interval 423 corresponds to at least one sub-groove structure.
  • the first interval 421 corresponds to the second sub-groove structure.
  • the groove 412 and the third sub-groove 413, the second interval 422 and the third interval 423 correspond to the first sub-groove 411 to ensure the water vapor barrier performance of the groove 41, and at the same time Since the existence of the first space 421 , the second space 422 and the third space 423 is equivalent to increasing the contact area between the light shielding layer 40 and the second substrate 20 , reducing the 40The risk of divestiture occurs.
  • the lengths of the first interval 421, the second interval 422 and the third interval 423 are all equal.
  • the length of the first interval 421 is equal to the length of the second interval 422.
  • the length of the second interval 422 is equal to the length of the third interval 423, and the lengths of the first interval 421, the second interval 422 and the third interval 423 are all from 10 microns to 200 microns, so that the The first groove portion 4111 , the second groove portion 4121 and the third groove portion 4131 are evenly arranged to facilitate the implementation of the process while ensuring sufficient contact between the light shielding layer 40 and the second substrate 20 Contact area.
  • first sub-groove 411, the second sub-groove 412 and the third sub-groove 413 all correspond to the area of the frame sealant 50 away from the display area AA to further improve the
  • the possible light leakage problem caused by digging holes in the light-shielding layer 40 affects the display area AA, and it can also improve the reflection problem caused by edge wiring when making up for the light-shielding function of the light-shielding layer 40 .
  • the width of the second sub-groove 412 is equal to the width of the first sub-groove 411
  • the width of the third sub-groove 413 is also equal to the width of the first sub-groove 411
  • the width of the third sub-groove 411 is also equal to the width of the first sub-groove 411
  • the distance between the second sub-groove 412 and the first sub-groove 411 is equal to the distance between the third sub-groove 413 and the first sub-groove 411 to facilitate the implementation of the process. Please refer to the above embodiment for other descriptions, which will not be described again here.
  • FIG. 7 is another top structural schematic diagram of a groove arrangement provided by an embodiment of the present application. Different from the above embodiment, the second intervals 422 and the third intervals 423 are arranged in a staggered manner so that each interval corresponds to two sub-groove 41 structures to further increase the water vapor barrier performance of the grooves 41 .
  • the first sub-groove 411 includes a plurality of first groove portions 4111, and there is a first interval 421 between two adjacent first groove portions 4111.
  • the second sub-groove 412 includes a plurality of second groove portions 4121. There is a second interval 422 between two adjacent second groove portions 4121. The first interval 421 and the second interval 422 staggered arrangement.
  • the third sub-groove 413 includes a plurality of third groove portions 4131. There is a third gap 423 between two adjacent third groove portions 4131. The second gap 422 is also connected with the third groove portion 4131. The intervals 423 are staggered.
  • any one of the first interval 421 , the second interval 422 and the third interval 423 corresponds to two sub-groove 41 structures.
  • the first interval 421 corresponds to the second sub-groove 41 .
  • the groove 412 and the third sub-groove 413, the second interval 422 corresponds to the first sub-groove 411 and the third sub-groove 413, the third interval 423 corresponds to the third A sub-groove 411 and the second sub-groove 412 are provided to further ensure the water vapor barrier performance of the groove 41.
  • the existence of the first interval 421 , the second interval 422 and the third interval 423 is equivalent to increasing the contact area between the light shielding layer 40 and the second substrate 20 , reducing the light shielding layer. Risk of peeling of layer 40. Please refer to the above embodiment for other descriptions, which will not be described again here.
  • FIG. 8 is another top structural schematic diagram of the groove arrangement provided by the embodiment of the present application.
  • the groove 41 also includes a fourth sub-groove 414 located on the side of the third sub-groove 413 away from the first sub-groove 411. 414 corresponds to the area of the frame sealant 50 close to the display area AA to further enhance the water vapor blocking performance of the groove 41 .
  • the packaging effect of the display panel 100 will be affected, as
  • the first sub-groove 411, the second sub-groove 412 and the third sub-groove 413 all correspond to the area of the frame sealant 50 away from the display area AA to further improve the light shielding.
  • the possible light leakage problem caused by digging holes in the layer 40 affects the display area AA, and it can also improve the reflection problem caused by the edge wiring when making up for the light-shielding function of the light-shielding layer 40 .
  • the width of the fourth sub-groove 414 is equal to the width of the first sub-groove 411
  • the width of the second sub-groove 412 is also equal to the width of the first sub-groove 411
  • the width of the third sub-groove 411 is also equal to the width of the first sub-groove 411.
  • the width of the sub-groove 413 is also equal to the width of the first sub-groove 411
  • the distance between the second sub-groove 412 and the first sub-groove 411 is equal to the distance between the third sub-groove 413 and the first sub-groove 411.
  • the distance between the first sub-grooves 411 is to facilitate the implementation of the process. Please refer to the above embodiment for other descriptions, which will not be described again here.
  • FIG. 9 is another schematic cross-sectional structural diagram of a display panel according to an embodiment of the present application.
  • the groove 41 penetrates the light-shielding layer 40 and extends into part of the second substrate 20 to enhance the bonding ability of the light-shielding layer 40 and the second substrate 20 to avoid The light shielding layer 40 is peeled off.
  • the extension path of the groove 41 becomes longer, it is equivalent to increasing the path for water vapor to invade, which enhances the performance of the groove 41 in blocking water vapor.
  • the groove 41 extends into the second substrate 20 , and blocks the path of water vapor from entering the display panel 100 along the contact interface between the light-shielding layer 40 and the second substrate 20 , further improving the efficiency of the display panel 100 .
  • the packaging effect of the display panel 100 is improved. Please refer to the above embodiment for other descriptions, which will not be described again here.
  • FIG. 10 is a schematic cross-sectional structural diagram of the electronic device provided by an embodiment of the present application.
  • the electronic device 1000 includes a housing 200 and a display panel 100 of one of the above embodiments.
  • the housing 200 is formed with a receiving cavity 201 , and the display panel 100 is assembled in the receiving cavity 201 .
  • the electronic device 1000 includes electronic products such as mobile phones, televisions, and tablets.
  • the present application provides a display panel and an electronic device.
  • the display panel includes a display area and a non-display area surrounding the display area.
  • the display panel also includes a first substrate and a second substrate arranged oppositely and a second substrate disposed on the A liquid crystal layer is provided between the first substrate and the second substrate and corresponding to the display area.
  • the light-shielding layer is disposed on a side of the second substrate facing the first substrate and corresponding to the non-display area.
  • the frame sealing glue is arranged between the first substrate and the light-shielding layer and surrounds the liquid crystal layer.
  • the light-shielding layer is provided with a groove at a position corresponding to the frame sealing glue, and the groove runs through the shading layer.
  • the grooves penetrate the light-shielding layer to block the path of water vapor entering the display panel through the light-shielding layer, thereby solving the problem of water vapor intrusion paths in existing liquid crystal display panels.

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Abstract

一种显示面板（100）和电子装置（1000），显示面板（100）包括相对设置的第一基板（10）和第二基板（20）以及位于第一基板（10）和第二基板（20）之间的封框胶（50），遮光层（40）位于第二基板（20）面向第一基板（10）的一侧，并在对应封框胶（50）的位置设置有凹槽（41），凹槽（41）贯穿遮光层（40），以阻断水汽通过遮光层（40）进入显示面板（100）内的路径，进而缓解水汽侵入路径的问题。

Description

显示面板和电子装置 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板和电子装置。
 背景技术
液晶显示（Liquid Crystal Display，LCD）面板作为目前的主流显示面板，其具有成本低、工艺成熟等优点。现有的液晶显示面板在封装过程中，封框胶需要涂布在黑色矩阵（Black Matrix，BM）表面，以阻挡水汽侵入。但水汽还是会通过黑色矩阵进入到液晶显示面板内，影响液晶显示面板的封装效果。
 技术问题
本申请提供一种显示面板和电子装置，以缓解现有液晶显示面板存在水汽侵入路径的技术问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请实施例提供一种显示面板，其包括显示区以及围绕所述显示区的非显示区，所述显示面板还包括：
第一基板；
第二基板，与所述第一基板相对设置；
液晶层，设置在所述第一基板和所述第二基板之间；
遮光层，设置在所述第二基板面向所述第一基板的一侧；
封框胶，设置在所述第一基板和所述遮光层之间，并围绕所述液晶层，且所述封框胶包括首尾相连的多个直线部和多个弯曲部，每个所述弯曲部连接于相邻的两个直线部；
其中，在对应所述封框胶的设置区域，所述遮光层形成有凹槽。
在本申请实施例提供的显示面板中，所述凹槽包括第一子凹槽，所述第一子凹槽围绕所述显示区。
在本申请实施例提供的显示面板中，所述第一子凹槽包括多个间隔设置的第一凹槽部，多个所述第一凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第一凹槽部之间具有第一间隔。
在本申请实施例提供的显示面板中，所述凹槽还包括位于所述第一子凹槽一侧的第二子凹槽，所述第二子凹槽对应所述弯曲部设置。
在本申请实施例提供的显示面板中，所述第二子凹槽包括多个间隔设置的第二凹槽部，多个所述第二凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第二凹槽部之间具有第二间隔。
在本申请实施例提供的显示面板中，所述第一子凹槽包括多个间隔设置的第一凹槽部，多个所述第一凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第一凹槽部之间具有第一间隔，所述第一间隔和所述第二间隔交错排布。
在本申请实施例提供的显示面板中，所述凹槽还包括位于所述第一子凹槽远离所述第二子凹槽一侧的第三子凹槽，所述第三子凹槽对应所述弯曲部设置。
在本申请实施例提供的显示面板中，所述第二子凹槽还对应所述直线部设置，所述第三子凹槽还对应所述直线部设置。
在本申请实施例提供的显示面板中，所述第三子凹槽包括多个间隔设置的第三凹槽部，多个所述第三凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第三凹槽部之间具有第三间隔。
在本申请实施例提供的显示面板中，所述第一子凹槽包括多个间隔设置的第一凹槽部，多个所述第一凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第一凹槽部之间具有第一间隔，所述第一间隔和所述第三间隔交错排布。
在本申请实施例提供的显示面板中，所述第二子凹槽包括多个间隔设置的第二凹槽部，多个所述第二凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第二凹槽部之间具有第二间隔，所述第二间隔和所述第三间隔交错排布。
在本申请实施例提供的显示面板中，所述第一间隔、所述第二间隔以及所述第三间隔的长度均为10微米至200微米。
在本申请实施例提供的显示面板中，所述第一子凹槽、所述第二子凹槽以及所述第三子凹槽均对应所述封框胶远离所述显示区的区域。
在本申请实施例提供的显示面板中，所述凹槽还包括位于所述第三子凹槽远离所述第一子凹槽一侧的第四子凹槽，且所述第四子凹槽对应所述封框胶靠近所述显示区的区域。
在本申请实施例提供的显示面板中，所述第一子凹槽、所述第二子凹槽、所述第三子凹槽以及所述第四子凹槽的宽度范围为10微米至30微米。
在本申请实施例提供的显示面板中，所述凹槽贯穿所述遮光层。
在本申请实施例提供的显示面板中，所述凹槽贯穿所述遮光层并延伸至部分所述第二基板内。
在本申请实施例提供的显示面板中，所述封框胶填充在所述凹槽内。
在本申请实施例提供的显示面板中，所述凹槽的截面形状包括梯形，且所述凹槽靠近所述第二基板侧的开口小于所述凹槽远离所述第二基板侧的开口。
本申请实施例还提供一种电子装置，其包括壳体和前述实施例其中之一的显示面板，所述壳体形成有容纳腔，所述显示面板装配在所述容纳腔内。
 有益效果
本申请提供的显示面板和电子装置中，通过在对应封框胶的遮光层上设置凹槽，以阻断水汽通过遮光层进入显示面板内的路径，解决了现有液晶显示面板存在水汽侵入路径的问题。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的显示面板的一种俯视结构示意图。
图2为图1中沿A-A’的剖面结构示意图。
图3为图2中凹槽排布的一种俯视结构示意图。
图4为图2中第一基板的部分细节结构示意图。
图5为本申请实施例提供的凹槽排布的一种俯视结构示意图。
图6为本申请实施例提供的凹槽排布的另一种俯视结构示意图。
图7为本申请实施例提供的凹槽排布的又一种俯视结构示意图。
图8为本申请实施例提供的凹槽排布的再一种俯视结构示意图。
图9为本申请实施例提供的显示面板的另一种剖面结构示意图。
图10为本申请实施例提供的电子装置的一种剖面结构示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。在附图中，为了清晰理解和便于描述，夸大了一些层和区域的厚度。即附图中示出的每个组件的尺寸和厚度是任意示出的，但是本申请不限于此。
请参照图1至图4，图1为本申请实施例提供的显示面板的一种俯视结构示意图，图2为图1中沿A-A’的剖面结构示意图，图3为图2中凹槽排布的一种俯视结构示意图，图4为图2中第一基板的部分细节结构示意图。所述显示面板100包括显示区AA以及围绕所述显示区AA的非显示区NA，所述显示区AA用于显示画素，所述非显示区NA用于设置封装结构、边缘走线等。
具体地，所述显示面板100还包括相对设置的第一基板10和第二基板20以及设置在所述第一基板10和所述第二基板20之间的液晶层30、遮光层40以及封框胶50。所述液晶层30对应所述显示区AA设置。所述遮光层40设置在所述第二基板20面向所述第一基板10的一侧，并对应所述非显示区NA设置。所述封框胶50设置在所述第一基板10和所述遮光层40之间，并围绕所述液晶层30。在对应所述封框胶50的设置区域，所述遮光层40形成有凹槽41。
可选地，所述第一基板10为阵列基板，所述第二基板20为彩膜基板，但本申请不限于此，本申请的所述第一基板10还可为GOA（Gate Driver on Array，阵列基板行驱动）基板或者COA（Color-filter on Array，阵列上彩色滤光片）基板等。
如图2所示，所述封框胶50设置在所述第一基板10和所述第二基板20之间，并位于所述非显示区NA内，而且所述封框胶50相较于所述第一基板10和所述第二基板20的边界向所述显示区AA内缩一部分，以避免在切割所述第一基板10和所述第二基板20时切到所述封框胶50而产生破片。
所述封框胶50用于粘结所述第一基板10和所述第二基板20，使所述第一基板10和所述第二基板20结合在一起。同时所述封框胶50还围绕所述液晶层30，用于密封所述液晶层30，避免水汽进入所述液晶层30内。
所述遮光层40位于所述第二基板20面向所述第一基板10的一侧，并对应所述非显示区NA设置。所述遮光层40的材料包括黑色矩阵（Black Matrix，BM）等，所述遮光层40用于遮挡光线，避免所述显示面板100的所述非显示区NA漏光。
所述遮光层40与所述封框胶50的一侧接触，且所述遮光层40的设置区域大于所述封框胶50的设置区域，也即所述封框胶50在所述第二基板20上的正投影落在所述遮光层40在所述第一基板10上的正投影的范围内。如此，部分所述遮光层40与外界接触，水汽可能通过所述遮光层40进入到所述显示面板100内。
为了避免水汽通过所述遮光层40进入到所述显示面板100内，所述遮光层40在对应所述封框胶50的区域设置有凹槽41，所述凹槽41贯穿所述遮光层40，以阻挡水汽，切断水汽侵入路径。具体而言，所述凹槽41是通过对所述遮光层40进行挖孔形成，所述封框胶50填充在所述凹槽41内。
所述凹槽41的截面形状包括梯形等，当所述凹槽41的截面形状为梯形时，所述凹槽41靠近所述第二基板20侧的开口小于所述凹槽41远离所述第二基板20侧的开口。当然地，本申请不限于此，本申请还可在所述凹槽41内插设阻挡结构，阻挡结构的阻挡水汽的能力大于所述遮光层40阻挡水汽的能力。
可选地，如图3所示，所述凹槽41包括第一子凹槽411，所述第一子凹槽411围绕所述显示区AA，所述第一子凹槽411是由对所述遮光层40开设连续的凹槽形成。所述第一子凹槽411的宽度范围为10微米至30微米，以保证所述第一子凹槽411阻隔水汽的性能。
同时使所述第一子凹槽411的宽度小于或等于所述非显示区NA内的边缘走线的宽度，进而使所述非显示区NA的边缘走线弥补所述遮光层40的遮光功能，其中所述第一子凹槽411的宽度可参照图2示出的所述凹槽41的宽度D1。
可以理解的，通过对所述遮光层40挖孔形成所述第一子凹槽411，会使所述遮光层40的挖孔处漏光，进而影响所述显示区AA的显示。而设置合适宽度的所述第一子凹槽411，能够使所述非显示区NA的边缘走线遮挡光线，改善所述遮光层40的挖孔处漏光。
进一步地，所述第一子凹槽411对应于所述封框胶50远离所述显示区AA的区域，以进一步改善所述遮光层40由于挖孔而可能存在的漏光问题对所述显示区AA的影响，同时还可改善边缘走线在弥补所述遮光层40的遮光功能时导致的反射问题。
具体而言，所述第一子凹槽411在所述第二基板20上的正投影位于所述封框胶50在所述第二基板20上的正投影的中分线M远离所述显示区AA的一侧，如此使所述遮光层40的挖孔区远离所述显示区AA，也即所述遮光层40可能漏光的区域远离所述显示区AA，以减小所述遮光层40漏光对所述显示区AA的影响。
其中所述中分线M是指平分所述封框胶50在所述第二基板20上的正投影的虚拟线，使所述封框胶50在所述第二基板20上的正投影被平分为面积相等的两部分，比如所述中分线平分所述封框胶50在所述第二基板20上的正投影的宽度D2。
另外，所述遮光层40设置的所述第一子凹槽411对应所述边缘走线设置，以使所述边缘走线能够替代部分所述遮光层40进行遮光，以改善所述遮光层40的挖孔区漏光，但是所述边缘走线会有反射光的问题，而把所述第一子凹槽411设置在远离所述显示区AA位置，从而能够减小所述边缘走线反射光对所述显示区AA的影响。
进一步可以理解的是，把所述第一子凹槽411设置远离所述显示区AA的位置，还能够方便对所述遮光层40漏光以及所述边缘走线反光的改善，比如可在所述第二基板20上对应所述第一子凹槽411的位置进行涂布黑色油墨遮光等。
进一步地，所述显示面板100还包括位于所述第一基板10面向所述第二基板20一侧以及所述第二基板20面向所述第一基板10一侧的配向膜层60，所述配向膜层60用于对所述液晶层30进行配向，以使所述液晶层30的液晶分子实现均匀排布和取向，以在初始状态保持一定的形态。
所述配向膜层60位于所述封框胶50包围的区域内，其中位于所述第二基板20面向所述第一基板10一侧的所述配向膜层60还覆盖在所述遮光层40上，且所述配向膜层60在所述第一基板10上的正投影与所述封框胶50在所述第一基板10上的正投影没有重叠部分，以避免所述配向膜层60与外界接触，进而阻断水汽通过所述配向膜层60进入所述显示面板100内的路径，进一步提高所述显示面板100的封装效果。
所述配向膜层60能够使所述液晶层30的液晶分子形成初始状态，而所述第一基板10能够使所述液晶层30的液晶分子发生偏转，以控制透射光的明暗，实现所述显示面板100的显示。具体而言，所述第一基板10包括衬底11以及设置在所述衬底11上的薄膜晶体管12和像素电极13，所述像素电极13与所述薄膜晶体管12电连接。
可选地，所述薄膜晶体管12设置在所述衬底11上，所述衬底11包括玻璃基板等。所述薄膜晶体管12包括有源层121、栅极122、源极123和漏极124。所述第一基板10还包括位于所述有源层121与所述栅极122之间的栅极绝缘层111、位于所述栅极122和所述源极123以及所述漏极124之间的层间绝缘层112以及位于所述源极123和所述像素电极13之间的钝化层113。
具体而言，所述有源层121位于所述衬底11上，所述栅极绝缘层111覆于所述有源层121和所述衬底11上。所述栅极122设置在所述栅极绝缘层111上，并对应所述有源层121的沟道区设置。所述层间绝缘层112覆于所述栅极122以及所述栅极绝缘层111上，所述源极123和所述漏极124设置在所述层间绝缘层112上，且所述源极123和所述漏极124分别连接于所述有源层121的沟道区的两侧。所述钝化层113覆于所述源极123、所述漏极124以及所述层间绝缘层112上。
所述像素电极13设置在所述钝化层113上，所述像素电极13为图案电极，且所述像素电极13与所述薄膜晶体管12的所述漏极124电连接。但本申请所述薄膜晶体管12的结构不限于此，比如所述薄膜晶体管12还可采用底栅、双栅等结构。
为了控制所述液晶层30的液晶分子偏转，所述显示面板100还包括公共电极（图未示），所述公共电极可位于所述第一基板10或所述第二基板20上，当所述公共电极位于所述第一基板10上时，所述公共电极还可与所述像素电极13同层或不同层设置，但需保证所述公共电极和所述像素电极13之间彼此绝缘。如此通过所述薄膜晶体管12控制所述像素电极13上的驱动电压，使所述像素电极13与所述公共电极之间形成电场，使所述液晶层30的液晶分子发生偏转，进而实现所述显示面板100的画素显示。
当然地，为了实现所述显示面板100的显示，所述显示面板100还包括位于所述第二基板20远离所述第一基板10一侧的上偏光片70、位于所述第一基板10远离所述第二基板20一侧的下偏光片80以及位于所述下偏光片80远离所述第一基板10一侧的背光模组90。
所述背光模组90为所述显示面板100提供背光，所述背光模组90的背光经过所述下偏光片80的偏振后射向所述液晶层30。所述液晶层30的液晶分子在所述像素电极13和所述公共电极的作用下发生偏转，偏转的液晶分子将所述背光模组90提供的背光折射到所述第二基板20，所述第二基板20上设置有彩膜，所述彩膜使背光经过所述第二基板20后能呈现不同的色彩，并经过所述上偏光片70的偏振后出射，以实现所述显示面板100的画素显示。其中所述彩膜不限于设置在所述第二基板20上，比如当所述第一基板10为COA基板时，所述彩膜设置在所述第一基板10上。
在一种实施例中，请参照图1至图5，图5为本申请实施例提供的凹槽排布的一种俯视结构示意图。与上述实施例不同的是，所述凹槽41还包括位于所述第一子凹槽411一侧的第二子凹槽412以及位于所述第一子凹槽411远离所述第二子凹槽412一侧的第三子凹槽413，也即所述第二子凹槽412和所述第三子凹槽413位于所述第一子凹槽411的相对两侧，以增强所述凹槽41阻挡水汽的性能。
具体地，所述封框胶50包括首尾相连的多个直线部52和多个弯曲部51，每个所述弯曲部51连接于相邻的两个所述直线部52，所述第二子凹槽412和所述第三子凹槽413均对应所述弯曲部51设置，所述弯曲部51位于所述显示面板100的角落处。其中可以理解的是，所述封框胶50通常是通过涂布工艺形成，而在形成所述封框胶50的弯曲部51时，由于在弯曲处涂布胶材相较于在直线处涂布胶材的工艺不稳定，使得弯曲处的涂布精度以及涂布胶材的宽度不易控制。
另外，所述显示面板100的所述上偏光片70和所述下偏光片80在使用一段时间后会发生收缩，收缩应力在所述显示面板100的角落处最大。如此导致水汽容易从所述显示面板100的角落处进入所述显示面板100内。而所述遮光层40通过在对应所述弯曲部51设置所述第二子凹槽412和所述第三子凹槽413，以增强所述显示面板100角落处的防水汽侵入能力。
进一步地，所述第一子凹槽411、所述第二子凹槽412以及所述第三子凹槽413均对应于所述封框胶50远离所述显示区AA的区域，以进一步改善所述遮光层40由于挖孔而可能存在的漏光问题对所述显示区AA的影响，同时还可改善边缘走线在弥补所述遮光层40的遮光功能时导致的反射问题。
其中所述第二子凹槽412的宽度等于所述第一子凹槽411的宽度，所述第三子凹槽413的宽度也等于所述第一子凹槽411的宽度，且所述第二子凹槽412与所述第一子凹槽411的间隔距离等于所述第三子凹槽413与所述第一子凹槽411的间隔距离，以方便工艺的实施。其他说明请参照上述实施例，在此不再赘述。
在一种实施例中，请参照图1至图6，图6为本申请实施例提供的凹槽排布的另一种俯视结构示意图。与上述实施例不同的是，所述第二子凹槽412还对应所述直线部52设置，所述第三子凹槽413还对应所述直线部52设置，也即所述第二子凹槽412围绕所述显示区AA，所述第三子凹槽413也围绕所述显示区AA，以进一步增强所述凹槽41阻隔水汽的性能。
然而设置过多的子凹槽41会减小所述遮光层40与所述第二基板20的接触面积，可能会导致所述遮光层40发生剥离（peeling）。为此本实施例的所述凹槽41结构采用不连续设置，在满足增强所述凹槽41阻隔水汽性能的前提下，避免过多减小所述遮光层40与所述第二基板20的接触面积。
具体地，所述第一子凹槽411包括多个间隔设置的第一凹槽部4111，多个所述第一凹槽部4111在一个环绕所述显示区AA的环形路径上依次间隔排布，相邻两个所述第一凹槽部4111之间具有第一间隔421。
所述第二子凹槽412包括多个间隔设置的第二凹槽部4121，多个所述第二凹槽部4121在一个环绕所述显示区AA的环形路径上依次间隔排布，相邻两个所述第二凹槽部4121之间具有第二间隔422，所述第一间隔421和所述第二间隔422交错排布。
所述第三子凹槽413包括多个间隔设置的第三凹槽部4131，多个所述第三凹槽部4131在一个环绕所述显示区AA的环形路径上依次间隔排布，相邻两个所述第三凹槽部4131之间具有第三间隔423，所述第一间隔421也和所述第三间隔423交错排布，所述第三间隔423与所述第二间隔422相对设置。
如此所述第一间隔421、所述第二间隔422以及所述第三间隔423的其中任意一个间隔均对应有至少一个子凹槽结构，比如所述第一间隔421对应有所述第二子凹槽412和所述第三子凹槽413，所述第二间隔422和所述第三间隔423对应有所述第一子凹槽411，以保证所述凹槽41的阻隔水汽性能，同时由于所述第一间隔421、所述第二间隔422以及所述第三间隔423的存在相当于增大了所述遮光层40与所述第二基板20的接触面积，降低了所述遮光层40发生剥离的风险。
可选地，所述第一间隔421、所述第二间隔422以及所述第三间隔423的长度均相等，比如所述第一间隔421的长度等于所述第二间隔422的长度，所述第二间隔422的长度等于所述第三间隔423的长度，且所述第一间隔421、所述第二间隔422以及所述第三间隔423的长度均为10微米至200微米，使所述第一凹槽部4111、所述第二凹槽部4121以及所述第三凹槽部4131均匀排布，以方便工艺的实施，同时保证所述遮光层40与所述第二基板20足够的接触面积。
进一步地，所述第一子凹槽411、所述第二子凹槽412以及所述第三子凹槽413均对应所述封框胶50远离所述显示区AA的区域，以进一步改善所述遮光层40由于挖孔而可能存在的漏光问题对所述显示区AA的影响，同时还可改善边缘走线在弥补所述遮光层40的遮光功能时导致的反射问题。其中所述第二子凹槽412的宽度等于所述第一子凹槽411的宽度，所述第三子凹槽413的宽度也等于所述第一子凹槽411的宽度，且所述第二子凹槽412与所述第一子凹槽411的间隔距离等于所述第三子凹槽413与所述第一子凹槽411的间隔距离，以方便工艺的实施。其他说明请参照上述实施例，在此不再赘述。
在一种实施例中，请参照图1至图7，图7为本申请实施例提供的凹槽排布的又一种俯视结构示意图。与上述实施例不同的是，所述第二间隔422和所述第三间隔423交错排布，使每一间隔均对应两道子凹槽41结构，以进一步增加所述凹槽41的阻隔水汽性能。
具体地，所述第一子凹槽411包括多个第一凹槽部4111，相邻两个所述第一凹槽部4111之间具有第一间隔421。所述第二子凹槽412包括多个第二凹槽部4121，相邻两个所述第二凹槽部4121之间具有第二间隔422，所述第一间隔421和所述第二间隔422交错排布。
所述第三子凹槽413包括多个第三凹槽部4131，相邻两个所述第三凹槽部4131之间具有第三间隔423，所述第二间隔422也和所述第三间隔423交错排布。
如此所述第一间隔421、所述第二间隔422以及所述第三间隔423的其中任意一个间隔均对应有两个子凹槽41结构，比如所述第一间隔421对应有所述第二子凹槽412和所述第三子凹槽413，所述第二间隔422对应有所述第一子凹槽411和所述第三子凹槽413，所述第三间隔423对应有所述第一子凹槽411和所述第二子凹槽412，以进一步保证所述凹槽41的阻隔水汽性能。
同时由于所述第一间隔421、所述第二间隔422以及所述第三间隔423的存在相当于增大了所述遮光层40与所述第二基板20的接触面积，降低了所述遮光层40发生剥离的风险。其他说明请参照上述实施例，在此不再赘述。
在一种实施例中，请参照图1至图8，图8为本申请实施例提供的凹槽排布的再一种俯视结构示意图。与上述实施例不同的是，所述凹槽41还包括位于所述第三子凹槽413远离所述第一子凹槽411一侧的第四子凹槽414，所述第四子凹槽414对应所述封框胶50靠近所述显示区AA的区域，以进一步增强所述凹槽41阻挡水汽的性能。
具体地，对于所述封框胶50宽度较窄的所述显示面板100，比如所述封框胶50的宽度小于或等于300微米，此时所述显示面板100的封装效果会受到影响，为此通过在所述遮光层40对应所述封框胶50靠近所述显示区AA的区域设置所述第四子凹槽414，能够增强所述凹槽41的阻隔水汽性能，提高所述显示面板100的封装效果。
而所述第一子凹槽411、所述第二子凹槽412以及所述第三子凹槽413均对应所述封框胶50远离所述显示区AA的区域，以进一步改善所述遮光层40由于挖孔而可能存在的漏光问题对所述显示区AA的影响，同时还可改善边缘走线在弥补所述遮光层40的遮光功能时导致的反射问题。
其中所述第四子凹槽414的宽度等于所述第一子凹槽411的宽度，所述第二子凹槽412的宽度也等于所述第一子凹槽411的宽度，所述第三子凹槽413的宽度也等于所述第一子凹槽411的宽度，且所述第二子凹槽412与所述第一子凹槽411的间隔距离等于所述第三子凹槽413与所述第一子凹槽411的间隔距离，以方便工艺的实施。其他说明请参照上述实施例，在此不再赘述。
在一种实施例中，请参照图1至图9，图9为本申请实施例提供的显示面板的另一种剖面结构示意图。与上述实施例不同的是，所述凹槽41贯穿所述遮光层40并延伸至部分所述第二基板20内，以增强所述遮光层40与所述第二基板20的结合能力，避免所述遮光层40发生剥离。
同时由于所述凹槽41的延伸路径变长，相当于增长了水汽侵入的路径，增强了所述凹槽41阻隔水汽的性能。而且所述凹槽41延伸至所述第二基板20内，还阻断了水汽沿着所述遮光层40与所述第二基板20的接触界面进入所述显示面板100内的路径，进一步提高了所述显示面板100的封装效果。其他说明请参照上述实施例，在此不再赘述。
基于同一发明构思，本申请实施例还提供一种电子装置，请结合参照图1至图10，图10为本申请实施例提供的电子装置的一种剖面结构示意图。所述电子装置1000包括壳体200以及上述实施例其中之一的显示面板100，所述壳体200形成有容纳腔201，所述显示面板100装配在所述容纳腔201内。所述电子装置1000包括手机、电视、平板等电子产品。
根据上述实施例可知：
本申请提供一种显示面板和电子装置，所述显示面板包括显示区以及围绕所述显示区的非显示区，所述显示面板还包括相对设置的第一基板和第二基板以及设置在所述第一基板和所述第二基板之间，并对应所述显示区设置的液晶层。遮光层设置在所述第二基板面向所述第一基板的一侧，并对应所述非显示区设置。封框胶设置在所述第一基板和所述遮光层之间，并围绕所述液晶层，所述遮光层在对应所述封框胶的位置设置有凹槽，所述凹槽贯穿所述遮光层。通过在对应封框胶的遮光层上设置凹槽，凹槽贯穿遮光层，以阻断水汽通过遮光层进入显示面板内的路径，解决了现有液晶显示面板存在水汽侵入路径的问题。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种显示面板，其包括显示区以及围绕所述显示区的非显示区，所述显示面板还包括：
    第一基板；
    第二基板，与所述第一基板相对设置；
    液晶层，设置在所述第一基板和所述第二基板之间；
    遮光层，设置在所述第二基板面向所述第一基板的一侧；以及
    封框胶，设置在所述第一基板和所述遮光层之间，并围绕所述液晶层，且所述封框胶包括首尾相连的多个直线部和多个弯曲部，每个所述弯曲部连接于相邻的两个直线部；
    其中，在对应所述封框胶的设置区域，所述遮光层上形成有凹槽。
  2. 根据权利要求1所述的显示面板，其中，所述凹槽包括第一子凹槽，所述第一子凹槽围绕所述显示区。
  3. 根据权利要求2所述的显示面板，其中，所述第一子凹槽包括多个间隔设置的第一凹槽部，多个所述第一凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第一凹槽部之间具有第一间隔。
  4. 根据权利要求2所述的显示面板，其中，所述凹槽还包括位于所述第一子凹槽一侧的第二子凹槽，所述第二子凹槽对应所述弯曲部设置。
  5. 根据权利要求4所述的显示面板，其中，所述第二子凹槽包括多个间隔设置的第二凹槽部，多个所述第二凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第二凹槽部之间具有第二间隔。
  6. 根据权利要求5所述的显示面板，其中，所述第一子凹槽包括多个间隔设置的第一凹槽部，多个所述第一凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第一凹槽部之间具有第一间隔，所述第一间隔和所述第二间隔交错排布。
  7. 根据权利要求4所述的显示面板，其中，所述凹槽还包括位于所述第一子凹槽远离所述第二子凹槽一侧的第三子凹槽，所述第三子凹槽对应所述弯曲部设置。
  8. 根据权利要求7所述的显示面板，其中，所述第二子凹槽还对应所述直线部设置，所述第三子凹槽还对应所述直线部设置。
  9. 根据权利要求7所述的显示面板，其中，所述第三子凹槽包括多个间隔设置的第三凹槽部，多个所述第三凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第三凹槽部之间具有第三间隔。
  10. 根据权利要求9所述的显示面板，其中，所述第一子凹槽包括多个间隔设置的第一凹槽部，多个所述第一凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第一凹槽部之间具有第一间隔，所述第一间隔和所述第三间隔交错排布。
  11. 根据权利要求10所述的显示面板，其中，所述第二子凹槽包括多个间隔设置的第二凹槽部，多个所述第二凹槽部在一个环绕所述显示区的环形路径上依次间隔排布，相邻两个所述第二凹槽部之间具有第二间隔，所述第二间隔和所述第三间隔交错排布。
  12. 根据权利要求11所述的显示面板，其中，所述第一间隔、所述第二间隔以及所述第三间隔的长度均为10微米至200微米。
  13. 根据权利要求7所述的显示面板，其中，所述第一子凹槽、所述第二子凹槽以及所述第三子凹槽均对应所述封框胶远离所述显示区的区域。
  14. 根据权利要求13所述的显示面板，其中，所述凹槽还包括位于所述第三子凹槽远离所述第一子凹槽一侧的第四子凹槽，且所述第四子凹槽对应所述封框胶靠近所述显示区的区域。
  15. 根据权利要求14所述的显示面板，其中，所述第一子凹槽、所述第二子凹槽、所述第三子凹槽以及所述第四子凹槽的宽度范围为10微米至30微米。
  16. 根据权利要求1所述的显示面板，其中，所述凹槽贯穿所述遮光层。
  17. 根据权利要求16所述的显示面板，其中，所述凹槽贯穿所述遮光层并延伸至部分所述第二基板内。
  18. 根据权利要求1所述的显示面板，其中，所述封框胶填充在所述凹槽内。
  19. 根据权利要求1所述的显示面板，其中，所述凹槽的截面形状包括梯形，且所述凹槽靠近所述第二基板侧的开口小于所述凹槽远离所述第二基板侧的开口。
  20. 一种电子装置，其包括壳体和如权利要求1所述的显示面板，所述壳体形成有容纳腔，所述显示面板装配在所述容纳腔内。
PCT/CN2022/108835 2022-07-05 2022-07-29 显示面板和电子装置 WO2024007387A1 (zh)

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