WO2021208876A1 - 显示面板的封装方法、显示面板及显示装置 - Google Patents

显示面板的封装方法、显示面板及显示装置 Download PDF

Info

Publication number
WO2021208876A1
WO2021208876A1 PCT/CN2021/086788 CN2021086788W WO2021208876A1 WO 2021208876 A1 WO2021208876 A1 WO 2021208876A1 CN 2021086788 W CN2021086788 W CN 2021086788W WO 2021208876 A1 WO2021208876 A1 WO 2021208876A1
Authority
WO
WIPO (PCT)
Prior art keywords
area
glue
shaped
packaging
display panel
Prior art date
Application number
PCT/CN2021/086788
Other languages
English (en)
French (fr)
Inventor
李朋
高昕伟
臧丹丹
陈琦鹤
Original Assignee
京东方科技集团股份有限公司
合肥京东方卓印科技有限公司
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 京东方科技集团股份有限公司, 合肥京东方卓印科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US17/779,805 priority Critical patent/US20220407031A1/en
Publication of WO2021208876A1 publication Critical patent/WO2021208876A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/842—Containers
    • H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/872—Containers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/851—Division of substrate

Definitions

  • the present disclosure relates to the field of display technology, and in particular to a packaging method of a display panel, a display panel and a display device.
  • OLED Organic Light Emitting Diode
  • a packaging method of a display panel includes: defining a glue application area on a cover plate that covers a target special-shaped pattern and has a regular shape; forming sealing glue on the glue application area; The substrates of the target special-shaped pattern are attached so that the display area in the target special-shaped pattern is located in the glue area; the bonded substrate and the cover plate are cut according to the target special-shaped pattern to obtain the display panel.
  • the packaging glue includes a first packaging glue and a second packaging glue.
  • the forming the encapsulation glue in the glue application area includes: coating the first encapsulation glue on the peripheral area of the glue application area to form a closed and regular-shaped first encapsulation area; The area surrounded by the packaging area is filled with the second packaging glue to form a second packaging area; wherein the viscosity of the second packaging glue is less than the viscosity of the first packaging glue.
  • the coating of the first packaging glue on the peripheral area of the glue application area to form a closed and regular-shaped first packaging area includes: a peripheral area in the glue application area The area is coated with the first packaging glue to form a frame-shaped first packaging area.
  • the cover plate formed with the encapsulation glue is attached to the substrate formed with the target special-shaped pattern so that the display area in the target special-shaped pattern is located in the glue area , Including: attaching the cover plate formed with the encapsulation glue to the substrate formed with the target special-shaped pattern, so that the display area is located in the second encapsulation area.
  • the area on the substrate where the target special-shaped pattern is formed includes at least one binding area located on the peripheral side of the display area; When the substrates with the target special-shaped pattern are attached, the at least one binding area is located on a side of the first packaging area away from the second packaging area.
  • the area on the substrate where the target special-shaped pattern is formed includes at least one binding area located on the peripheral side of the display area, and the cover plate defines a regular shape covering the target special-shaped pattern.
  • the gluing area includes: defining a gluing area on the cover plate that covers the part of the target special-shaped pattern excluding the at least one binding area and has a regular shape.
  • the glued area is a regular-shaped area covering a portion of the target special-shaped pattern excluding the at least one binding area and having a minimum area.
  • the method before attaching the cover plate formed with the encapsulation glue to the substrate formed with the target special-shaped pattern, the method further includes: curing the encapsulation glue.
  • the cutting the bonded substrate and the cover plate according to the target special-shaped pattern to obtain the display panel includes: according to the glued area and the entire area corresponding to the target special-shaped pattern Perform a first cutting of the bonded substrate and cover plate to form a semi-finished display panel with a regular shape; the semi-finished display panel is located on the substrate outside the area corresponding to the target special-shaped pattern by cutting and/or edging process , The packaging glue and the cover plate are removed to obtain the display panel.
  • the method further includes: coating a sealant on the edge of the display panel to complete the encapsulation of the display panel.
  • a display panel in another aspect, includes a special-shaped substrate, a special-shaped cover plate, and a glue layer.
  • the special-shaped substrate includes a display area; the shape and size of the special-shaped cover plate are the same or substantially the same as those of the special-shaped substrate; the colloid layer is located between the special-shaped substrate and the special-shaped cover plate and is at least Cover the display area.
  • the special-shaped substrate includes at least one binding area located on the peripheral side of the display area.
  • the glue layer includes a second encapsulating glue and at least one set of first encapsulating glue, the second encapsulating glue covers the display area, and the at least one set of first encapsulating glue is disposed on the outer periphery of the second encapsulating glue, One of the binding areas is located on a side of a group of the first encapsulating glue away from the second encapsulating glue; wherein the viscosity of the first encapsulating glue is greater than the viscosity of the second encapsulating glue.
  • the number of the binding area and the first encapsulating glue are equal.
  • the display panel further includes a sealant applied to the entire edge of the special-shaped substrate and the special-shaped cover plate.
  • a display device in another aspect, includes the display panel as described in any of the above embodiments.
  • FIG. 1 is a flowchart of a packaging method of a display panel according to some embodiments
  • FIG. 2 is a flowchart of another packaging method of a display panel according to some embodiments.
  • FIG. 3A is a structural diagram of a substrate formed with a target special-shaped pattern according to some embodiments.
  • 3B is a structural diagram of another substrate formed with a target special-shaped pattern according to some embodiments.
  • FIG. 4 is a structural diagram of a cover plate defined with a glued area covering a target special-shaped pattern and a regular shape according to some embodiments;
  • FIG. 5 is a structural diagram of a regular-shaped display panel obtained by cutting the bonded substrate and the cover according to the area corresponding to the glued area and the target special-shaped pattern as a whole according to some embodiments;
  • FIG. 6 is a structural diagram of a display panel obtained by cutting a bonded substrate and a cover plate according to a target special-shaped pattern according to some embodiments;
  • FIG. 7 is a structural diagram of a display panel formed after coating sealant according to some embodiments.
  • FIG. 8 is a structural diagram of a display device according to some embodiments.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, “plurality” means two or more.
  • the expressions “coupled” and “connected” and their extensions may be used.
  • the term “connected” may be used when describing some embodiments to indicate that two or more components are in direct physical or electrical contact with each other.
  • the term “coupled” may be used when describing some embodiments to indicate that two or more components have direct physical or electrical contact.
  • the term “coupled” or “communicatively coupled” may also mean that two or more components are not in direct contact with each other, but still cooperate or interact with each other.
  • the embodiments disclosed herein are not necessarily limited to the content of this document.
  • a and/or B includes the following three combinations: A only, B only, and the combination of A and B.
  • the term “if” is optionally interpreted as meaning “when” or “when” or “in response to determination” or “in response to detection.”
  • the phrase “if it is determined" or “if [the stated condition or event] is detected” is optionally interpreted to mean “when determining" or “in response to determining" Or “when [stated condition or event] is detected” or “in response to detecting [stated condition or event]”.
  • the exemplary embodiments are described herein with reference to cross-sectional views and/or plan views as idealized exemplary drawings.
  • the thickness of layers and regions are exaggerated for clarity. Therefore, variations in the shape with respect to the drawings due to, for example, manufacturing technology and/or tolerances can be envisaged. Therefore, the exemplary embodiments should not be construed as being limited to the shape of the area shown herein, but include shape deviations due to, for example, manufacturing.
  • an etched area shown as a rectangle will generally have curved features. Therefore, the areas shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shape of the area of the device, and are not intended to limit the scope of the exemplary embodiments.
  • OLED display panel products for example, wearable display panel products such as smart watches and smart glasses.
  • the special-shaped OLED display panel is usually coated with a gel according to the shape of the display panel during the packaging process.
  • a gel due to the influence of the dispensing equipment and the peripheral design of the special-shaped OLED display panel, it is difficult for the gel to completely affect the display area of the special-shaped display panel. filling.
  • the position of the arc inner edge of the irregular display panel is prone to problems that the gel is difficult to fill or the filling is uneven.
  • some embodiments of the present disclosure provide a packaging method of a display panel. As shown in Fig. 1, the method includes steps S101 to S104.
  • S101 define a glue area 10 covering the target special-shaped pattern 4 and having a regular shape on the cover plate 1.
  • the target special-shaped pattern 4 may be a pattern with a special-shaped shape preset by the display panel 9.
  • S102 forming an encapsulation glue in the glue application area 10.
  • S103 attach the cover plate 1 formed with the encapsulation glue to the substrate 7 formed with the target special-shaped pattern 4 so that the display area 5 in the target special-shaped pattern 4 is located in the glue area 10.
  • S104 cutting the bonded substrate 7 and the cover plate 1 according to the target special-shaped pattern 4 to obtain the display panel 9.
  • the cover plate 1 may be a glass cover plate.
  • the material of the substrate 7 may be quartz or glass.
  • the display panel 9 Since the above-mentioned display panel 9 is cut according to the target special-shaped pattern 4, the display panel 9 has the same or substantially the same shape as the target special-shaped pattern 4.
  • the display panel 9 cut according to the above-mentioned target special-shaped pattern 4 will be referred to as a special-shaped display panel in the following.
  • the special-shaped display panel has a shape different from a rectangle.
  • the special-shaped display panel may be a display panel having a heart shape, a five-pointed star, or a cloud shape.
  • the shape and size of the special-shaped display panel are the same or substantially the same as the shape and size of the target special-shaped pattern 4.
  • a pattern with approximately the same shape and size as that of the special-shaped display panel may be formed on the substrate 7 in advance.
  • the above pattern can be called the target special-shaped pattern 4.
  • the target special-shaped pattern exemplarily, structures such as the light-emitting layer and the circuit structure can be arranged on the substrate in advance according to the designed special-shaped shape and set position.
  • the light-emitting layer may be correspondingly located in the display area
  • the circuit structure may be located at the edge of the display area.
  • the above-mentioned regular-shaped glue area refers to an area surrounded by a regular shape that can be glued.
  • the regular shape is a closed figure surrounded by several line segments connected in sequence, and the angle between any two adjacent line segments in the closed figure is about 90 degrees.
  • the regular shape may be a shape such as a rectangle (for example, a rectangle or a square). This can effectively avoid the problem that the glue area around the glued area is difficult to fill with the glue during the reciprocating glue dispensing process of the glue dispensing equipment, which helps to form a good coating effect on the glued area, which is conducive to improving the display effect of the display panel. Its production yield.
  • the above-mentioned encapsulant may be an ultraviolet (UV) curing adhesive or a thermal curing adhesive
  • the material may be a resin, a photoinitiator, or a curing agent, etc., which are not specifically limited in the embodiments of the present disclosure.
  • the glue can be applied according to the regular shape of the glued area, and can make The colloid in the area corresponding to the target special-shaped pattern on the cover forms a good filling effect.
  • the cover plate is attached to the substrate and the display area in the target special-shaped pattern is located in the glued area, the display area can also be effectively filled with the glue. Then, the bonded substrate and cover plate are cut according to the target special-shaped pattern to obtain the corresponding special-shaped display panel.
  • the present disclosure can be used for packaging special-shaped display panels of different shapes and sizes.
  • the present disclosure can effectively avoid the gluing process in the packaging process from being affected and restricted by the dispensing equipment and the shape, size and peripheral design of the special-shaped display panel, so that the display area in the target special-shaped pattern is attached to the substrate and the cover.
  • the colloid can then be filled uniformly and fully, which helps to solve the problem of differences in display brightness and color of the display panel caused by uneven coating of the colloid in the display area.
  • the glue inside the display area is evenly filled, this helps to keep the irregular display panel with a uniform box thickness, which can effectively avoid the problem of the substrate and/or the edge of the cover being broken during cutting, thereby helping to improve the irregular shape. Display panel quality and improve product yield.
  • the gluing process of the present disclosure is relatively simple, and it is also beneficial to improve the gluing efficiency of the special-shaped display panel.
  • the packaging method includes steps S201 to S206.
  • S201 define a glue area 10 covering the target special-shaped pattern 4 and having a regular shape on the cover plate 1.
  • S202 Coating the first packaging glue on the peripheral area of the glue application area 10 to form a closed and regular-shaped first packaging area 3; filling the second packaging area in the area surrounded by the first packaging area 3
  • the encapsulation glue is used to form the second encapsulation area 2; wherein the viscosity of the second encapsulation glue is less than the viscosity of the first encapsulation glue.
  • S203 Perform curing treatment on the first packaging glue and the second packaging glue.
  • S204 attach the cover plate 1 to the substrate 7 on which the target special-shaped pattern 4 is formed, so that the display area 5 in the target special-shaped pattern 4 is located in the glue area 10.
  • S205 cutting the bonded substrate 7 and the cover plate 1 according to the target special-shaped pattern 4 to obtain the display panel 9.
  • S206 coating the sealant 14 on the edge of the display panel 9 to complete the packaging of the display panel 9.
  • the target special-shaped pattern 4 is formed in advance on the substrate 7.
  • the target special-shaped pattern 4 can be obtained by arranging the light-emitting layer and circuit structure on the substrate 7 into a designed special-shaped shape. In this way, when the bonded substrate 7 and the cover plate are cut, according to the target special-shaped pattern 4, the corresponding special-shaped shape can be obtained, and the special-shaped display panel can be formed.
  • target special-shaped pattern 4 as a heart shape as an example.
  • the shape of the special-shaped display panel is set to a heart shape, and then the shape and size of the heart shape can be formed on the substrate 7 according to the set heart shape and size. Roughly the same target alien pattern 4.
  • the display area 5 of the special-shaped display panel may be designed at a preset position of the substrate 7 based on the set heart shape and size, and a light-emitting layer may be arranged in the display area 5, the light-emitting layer including, for example, an OLED device. Then a frame area 11 is designed around the display area 5, and the frame area 11 and the display area 5 as a whole constitute the target special-shaped pattern 4.
  • the shape of the display area 5 may be consistent with the shape of the target special-shaped pattern 4, for example, the display area 5 may be heart-shaped. Or, the shape of the display area 5 is different from the shape of the target special-shaped pattern 4, for example, the display area 5 may have an irregular shape other than a heart shape.
  • the size of the display area 5 may be smaller than the size of the target special-shaped pattern 4.
  • the above-mentioned heart shape may be approximately a heart shape. That is, the shape of the target special-shaped pattern 4 may be a shape similar to the heart shape, and the curvature of the line of the heart-shaped contour and the like are not limited.
  • the glue application area 10 may be determined by the longest distance of the target special-shaped pattern 4 in two vertical directions, respectively.
  • the shape of the substrate 7 is a rectangle, and the long side 12 and the short side 13 are perpendicular to each other.
  • the glue area 10 can be determined according to a and b. Shape and size.
  • the glue area 10 can be designed to be a rectangle (for example, rectangle or square) of a certain size that can cover the target special-shaped pattern 4 according to the values of a and b.
  • the glued area 10 when the glued area 10 is defined as a square, its side length can be determined according to the larger value of a and b. For example, a is 8cm and b is 9cm. All side lengths of the glued area 10 can be designed to be greater than or equal to 9cm, such as 9cm, 10cm, or 11cm.
  • the glued area 10 when the glued area 10 is defined as a rectangle, its long side and short side can be determined according to a and b respectively.
  • a is 8cm and b is 9cm.
  • the long and short sides of the glued area 10 can be designed to be greater than or equal to 8cm and 9cm, such as 8cm and 9cm, 8cm and 10cm, or 10cm and 11cm.
  • the above-mentioned numerical values are only used for illustration, and the present disclosure is not limited to this.
  • the specific size of the glued area 10 can be set differently according to different situations and needs, as long as it has a regular shape and covers the target special-shaped pattern 4. Area is fine.
  • the area where the target special-shaped pattern 4 is formed on the substrate 7 includes a heart-shaped display area 5 and a frame area 11 located at the periphery of the display area 5.
  • the display area 5 can be provided with an OLED device for light-emitting display.
  • the above-mentioned frame area 11 includes at least one bonding area 6, and each bonding area 6 can be provided with a driving signal line.
  • the driving signal line can be used to communicate with an external control circuit structure (such as a circuit board, Integrated circuit chips, etc.) establish electrical connections through bonding.
  • step S201 includes: defining a regular-shaped glue area on the cover plate 1 that covers all parts of the target special-shaped pattern 4 except for all the binding areas 6 10.
  • the glue area 10 can be specifically determined by the longest distances in the two vertical directions of the target special-shaped pattern 4 except for all the binding areas 6 respectively. This method is the same as the above-mentioned glue area 10 through the target special-shaped pattern 4. The longest distances in the two vertical directions are similar. You only need to replace the target special-shaped pattern 4 in some of the above embodiments with the target special-shaped pattern 4 except for all the binding areas 6. Go into details again.
  • the binding area 6 does not need to be coated with glue, when defining the glue area 10, it is only necessary to define the glue area 10 to cover the area where all parts of the target special-shaped pattern 4 except for the binding area 6 are located. .
  • the position and number of the binding area 6 can be flexibly set according to the shape of the target special-shaped pattern 4.
  • the part of the target special-shaped pattern 4 other than the binding area 6 may be set in a heart shape.
  • the overall shape of the target special-shaped pattern 4 including the binding area 6 may be set to a heart shape.
  • the present disclosure does not limit the design of the location and number of the binding zone 6.
  • the glue-applied area 10 is a regular-shaped area covering the target special-shaped pattern 4 except for all the binding areas 6 and having the smallest area. Still taking the above-mentioned heart-shaped special shape as an example, continue to refer to FIGS. 3A and 3B, assuming that the longest distance of the heart-shaped target special-shaped pattern 4 except for all the binding areas 6 on the long side 12 of the substrate 7 is c.
  • the glued area 10 can be defined as the side lengths of c and d is a rectangle, and this rectangular area can be used as the glued area 10 that covers all parts of the target special-shaped pattern 4 except for all the binding areas 6 and has the smallest area.
  • This setting can not only meet the requirements of covering the part of the target special-shaped pattern 4 except for all the binding areas 6, which is convenient for gluing; it can also reduce the gluing area, which is beneficial to save glue; at the same time, it is also beneficial for the follow-up Leave a lot of space for cutting operations.
  • a rectangular area is used as an example of the glue area 10, but this does not limit the shape of the glue area 10.
  • the glue area 10 only needs to cover the target special-shaped pattern 4 and has a regular shape.
  • the glue area that has the smallest area and covers the target special-shaped pattern 4 is not limited to a rectangular area.
  • a first packaging glue is applied to the peripheral area of the glue application area 10 to form a frame-shaped first packaging area 3; in the first packaging area 3 The enclosed area is filled with a second packaging glue to form the second packaging area 2.
  • the first encapsulating glue can choose a glue with higher viscosity and strong water resistance as the dam glue (Dam glue) that plays the role of encapsulation, which helps to connect the cover plate 1 and the substrate 7 to form a closed space , So as to form an effective protection for the display panel.
  • the dam glue Den glue
  • a colloid with low viscosity, high fluidity and high light transmittance can be selected as the filling glue (Filler glue) that plays the role of filling and supporting.
  • the second packaging glue is evenly filled in the area defined by the first packaging glue, which not only helps to maintain a uniform box thickness, thereby helping to ensure the uniformity of the display effect; it also helps to avoid causing in-plane film crushing When cutting and cutting, it is prone to risks such as fragments, which is beneficial to increase the strength of the display panel, and thus the display panel can effectively cope with changes in external pressure.
  • both the first packaging glue and the second packaging glue may include epoxy resin and/or polymethacrylic acid.
  • the first packaging glue and the second packaging glue may have the same or different material composition.
  • the ratio of the first encapsulating glue and the second encapsulating glue material composition is different, so that the viscosity of the first encapsulating glue is relatively large; and the second encapsulating glue
  • the glue has low viscosity, high fluidity and high light transmittance.
  • the curing process of the first packaging adhesive and the second packaging adhesive can select a corresponding curing method according to the types of the first packaging adhesive and the second packaging adhesive. For example, if the first encapsulating glue is a UV curing glue, a UV curing treatment method can be selected. If the first packaging glue is a heat curing glue, a heat curing treatment method can be selected.
  • the second packaging glue is similar to the first packaging glue, and will not be repeated here.
  • the first packaging adhesive and the second packaging adhesive may be the same type of curing adhesive, for example, both UV curing adhesives or thermal curing adhesives.
  • the first packaging glue and the second packaging glue can also be different types of curing glues.
  • the display area 5 is located within the second package area 2 and the binding area 6 is located in the first package. Outside zone 3.
  • the first encapsulating glue (such as dam glue) can also effectively block the filling glue from flowing into the binding area 6, thereby effectively preventing the filling glue from covering the circuit structure in the binding area 6 and not conducive to the binding of the drive signal lines.
  • the bonded substrate 7 and the cover plate 1 are cut according to the target special-shaped pattern 4, so that the display panel 9 can be obtained by one-time cutting.
  • the first package area 3 is cut to form a first gel layer 3'
  • the second package area 2 is cut to form a second gel layer 2'
  • the first gel layer 3'and the second gel layer 2 ' The colloid layer 10' constituting the display panel 9. Since the dam glue and filling glue outside the edge of the target special-shaped pattern 4 have been removed, most of the area inside the edge of the target special-shaped pattern 4 has no dam glue, but only the dam glue at the position of the binding zone 6 remains, so it is more conducive to narrowing Realization of border or borderless display.
  • the display panel 9 can also be obtained by cutting twice.
  • the laminated substrate 7 and the cover plate 1 can be cut for the first time according to the defined glue area 10 and the area corresponding to the target special-shaped pattern 4 as a whole to form a regular shape as shown in FIG. 5 Semi-finished display panel 8.
  • the encapsulating glue such as dam glue and filling glue
  • the cover plate 1 are removed by cutting and/or edging processes, so as to obtain a display panel as shown in FIG. 6 9.
  • the laminated substrate 7 and the cover 1 can be cut to form an independent semi-finished display panel 8 with a regular shape.
  • the "other positions to be reserved” may include, for example, an installation area and/or a decoration area.
  • the installation area can be used to fix and install the display panel.
  • the decoration area can be used to decorate the periphery of the display panel.
  • a sealant 14 is coated on the edge of the display panel 9 to complete the packaging of the display panel 9.
  • a sealant 14 can be applied to the edge area between the special-shaped substrate 7'and the special-shaped cover plate 1'formed after cutting for reinforcement and curing, so that the encapsulated display panel 9 can maintain high strength and Adhesion.
  • the sealant 14 can be a thermosetting glue or an ultraviolet curing glue, which is not limited in the present disclosure.
  • Some embodiments of the present disclosure also provide a display panel 9 which can be manufactured by the above-mentioned packaging method.
  • the display panel 9 includes a special-shaped substrate 7', a special-shaped cover plate 1', and a gel layer 10'.
  • the special-shaped substrate 7' includes the display area 5.
  • the shape and size of the special-shaped cover 1' are the same as or approximately the same as those of the special-shaped substrate 7'.
  • the colloid layer 10' is located between the special-shaped substrate 7'and the special-shaped cover 1'and At least cover display area 5.
  • the special-shaped substrate 7'and the special-shaped cover plate 1' can be obtained by cutting the substrate 7 and the cover plate 1 in the above method; and the colloid layer 10' can be formed by cutting the glue area 10 in the above method .
  • the display panel 9 provided by some embodiments of the present disclosure includes a special-shaped substrate 7', a special-shaped cover plate 1', and a gel layer 10'. It is sufficient to help solve the problem of uneven display caused by uneven coating of the colloid.
  • the uniform glue inside can also keep the display panel 9 with a uniform box thickness, thereby avoiding the problem of substrate and/or cover edge cracking during cutting, thereby improving the quality of the display panel.
  • the special-shaped substrate 7' includes at least one binding area 6 located on the peripheral side of the display area 5, and the gel layer 10' includes a first gel layer 3'and a second gel layer 2' .
  • the first glue layer 3' can be formed by cutting the first packaging area 3 in the above method
  • the second glue layer 2' can be formed by cutting the second packaging area 2 in the above method. That is, the first glue layer 3'includes at least one set of first encapsulating glue
  • the second encapsulating glue covers the display area 5
  • all the first encapsulating glues are arranged on the outer periphery of the second encapsulating glue
  • a binding area 6 is located on the side of a group of first encapsulating glues away from the second encapsulating glue.
  • the number of the binding areas 6 is equal to the number of the first packaging glue. At this time, the binding areas 6 and the first packaging glue are in one-to-one correspondence.
  • the viscosity of the first encapsulating glue is greater than the viscosity of the second encapsulating glue.
  • the first encapsulating glue may select a glue with a relatively high viscosity and strong water resistance as the dam glue (Dam glue) that plays a role of encapsulation. This helps to connect the special-shaped cover plate 1 ′ and the special-shaped substrate 7 ′ to form a closed space, thereby effectively protecting the display panel 9.
  • the second encapsulating glue can be a filler (Filler glue) with a smaller viscosity, greater fluidity and higher light transmittance.
  • the second encapsulating glue is evenly filled in the interior of the display panel 9, so as to help ensure the display effect. Uniformity; At the same time, it also helps to avoid the risk of in-plane film crushing and chipping that may easily occur during cutting, thereby helping to increase the strength of the display panel 9 so that the display panel 9 can effectively respond to changes in external pressure.
  • the dam glue can be fully and evenly filled in the display area 5, which helps to ensure uniform cell thickness and good light-emitting characteristics, thereby improving the display quality; at the same time, it is arranged in the filling glue and binding area 6
  • the dam glue between can also effectively block the filling glue from flowing into the binding area 6, thereby avoiding the filling glue from affecting the circuit structure.
  • the dam glue and filling glue outside the edge of the special-shaped substrate 7'have been removed most of the area inside the edge is also free of dam glue, but only the dam glue at the position of the binding zone 6 is retained, so it is beneficial to narrow borders or no dams. Implementation of border display.
  • the special-shaped substrate 7' in addition to retaining the dam glue at the position of the binding area 6, the special-shaped substrate 7'can also retain the dam glue at other positions that need to be kept.
  • the "other positions to be reserved" may include an installation area and/or a decoration area, which is beneficial to expand the use scene of the display panel. For example, if the display panel 9 is placed in a shopping mall or some places that need to be eye-catching, its appearance can achieve a good eye-catching effect.
  • the display panel 9 further includes a sealant 14 coated on the entire edge of the special-shaped substrate 7 ′ and the special-shaped cover 1 ′.
  • the sealant 14 can be coated on the edge area between the special-shaped substrate 7'and the special-shaped cover 1', which can play a certain reinforcing effect, thereby helping to keep the display panel 9 high in strength And adhesion.
  • the display device 15 includes the display panel 9 in some of the above embodiments, and has the beneficial effects of the display panel 9 in some of the above embodiments. No longer.
  • the display device 15 further includes a driving chip and a power supply.
  • the driving chip is configured to drive the display panel 9 for display, and the power supply is configured to provide power to the display panel 15.
  • the display panel or display device may be any device that displays images, whether in motion (for example, video) or fixed (for example, still images), and regardless of text or pictures. More specifically, the above-mentioned embodiments can be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (PDAs), and handheld devices.
  • PDAs personal data assistants
  • GPS receivers/navigators cameras
  • MP3 players camcorders
  • game consoles watches
  • clocks calculators
  • TV monitors flat panel displays
  • computer monitors car monitors (e.g., odometer monitors, etc.) ( For example, for a display of an image of a piece of jewelry) and so on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种显示面板的封装方法，该封装方法包括：在盖板上定义覆盖目标异形图案并且形状规则的涂胶区域；在所述涂胶区域形成封装胶；将形成有所述封装胶的所述盖板与形成有所述目标异形图案的基板贴合，使所述目标异形图案中的显示区位于所述涂胶区域内；按照所述目标异形图案对贴合后的基板和盖板进行切割，得到所述显示面板。

Description

显示面板的封装方法、显示面板及显示装置
本申请要求于2020年04月16日提交的、申请号为202010300473.9的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及显示技术领域，尤其涉及一种显示面板的封装方法、显示面板及显示装置。
背景技术
有机发光二极管(Organic Light Emitting Diode，简称OLED)由于具有自发光、反应快、视角广、亮度高、发光颜色连续可调、驱动电压低、能耗小、成本低、轻薄等优点，在显示技术领域得到了广泛应用。
发明内容
一方面，提供一种显示面板的封装方法。所述封装方法包括：在盖板上定义覆盖目标异形图案并且形状规则的涂胶区域；在所述涂胶区域形成封装胶；将形成有所述封装胶的所述盖板与形成有所述目标异形图案的基板贴合，使所述目标异形图案中的显示区位于所述涂胶区域内；按照所述目标异形图案对贴合后的基板和盖板进行切割，得到所述显示面板。
在一些实施例中，所述封装胶包括第一封装胶和第二封装胶。所述在所述涂胶区域形成封装胶，包括：在所述涂胶区域中的周边区域涂覆所述第一封装胶，以形成封闭且形状规则的第一封装区；在所述第一封装区所包围的区域内填充所述第二封装胶，以形成第二封装区；其中，所述第二封装胶的粘度小于所述第一封装胶的粘度。
在一些实施例中，所述在所述涂胶区域中的周边区域涂覆所述第一封装胶，以形成封闭且形状规则的第一封装区，包括：在所述涂胶区域中的周边区域涂覆所述第一封装胶，以形成呈框型的第一封装区。
在一些实施例中，所述将形成有所述封装胶的所述盖板与形成有所述目标异形图案的基板贴合，使所述目标异形图案中的显示区位于所述涂胶区域内，包括：将形成有所述封装胶的所述盖板与形成有所述目标异形图案的基板贴合，使所述显示区位于所述第二封装区内。
在一些实施例中，所述基板上形成有所述目标异形图案的区域包括位于所述显示区的周侧的至少一个绑定区；在将形成有所述封装胶的所述盖板与形成有所述目标异形图案的基板贴合的情况下，所述至少一个绑定区位于所述第一封装区远离所述第二封装区的一侧。
在一些实施例中，所述基板上形成有所述目标异形图案的区域包括位于所述显示区的周侧的至少一个绑定区，所述在盖板上定义覆盖目标异形图案并且形状规则的涂胶区域，包括：在盖板上定义覆盖所述目标异形图案中除所述至少一个绑定区以外的部分并且形状规则的涂胶区域。
在一些实施例中，所述涂胶区域为覆盖所述目标异形图案中除所述至少一个绑定区以外的部分且具有最小面积的形状规则的区域。
在一些实施例中，在所述将形成有所述封装胶的所述盖板与形成有所述目标异形图案的基板贴合之前，所述方法还包括：对所述封装胶进行固化处理。
在一些实施例中，所述按照所述目标异形图案对贴合后的基板和盖板进行切割，得到所述显示面板，包括：按照所述涂胶区域和所述目标异形图案整体所对应区域对贴合后的基板和盖板进行第一次切割，以形成形状规则的半成品显示面板；通过切割和/或磨边工艺将所述半成品显示面板位于所述目标异形图案所对应区域以外的基板、封装胶和盖板去除，得到所述显示面板。
在一些实施例中，在所述得到所述显示面板之后，所述方法还包括：在所述显示面板的边缘涂覆密封胶，完成所述显示面板的封装。
另一方面，提供一种显示面板，所述显示面板包括：异形基板、异形盖板，以及胶体层。所述异形基板包括显示区；所述异形盖板的形状和尺寸与所述异形基板的形状和尺寸相同或大致相同；所述胶体层位于所述异形基板和所述异形盖板之间且至少覆盖所述显示区。
在一些实施例中，所述异形基板包括位于所述显示区的周侧的至少一个绑定区。所述胶体层包括第二封装胶和至少一组第一封装胶，所述第二封装胶覆盖所述显示区，所述至少一组第一封装胶设置于所述第二封装胶外周边，一个所述绑定区位于一组所述第一封装胶远离所述第二封装胶的一侧；其中，所述第一封装胶的粘度大于所述第二封装胶的粘度。
在一些实施例中，所述绑定区和所述第一封装胶的数量相等。
在一些实施例中，所述显示面板还包括涂覆于所述异形基板和所述异形盖板整体的边缘的密封胶。
又一方面，提供一种显示装置，所述显示装置包括如上述任一实施例所述的显示面板。
附图说明
为了更清楚地说明本公开中的技术方案，下面将对本公开一些实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图 仅仅是本公开的一些实施例的附图，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。此外，以下描述中的附图可以视作示意图，并非对本公开实施例所涉及的产品的实际尺寸、方法的实际流程、信号的实际时序等的限制。
图1为根据一些实施例的一种显示面板的封装方法的流程图；
图2为根据一些实施例的另一种显示面板的封装方法的流程图；
图3A为根据一些实施例的一种形成有目标异形图案的基板的结构图；
图3B为根据一些实施例的另一种形成有目标异形图案的基板的结构图；
图4为根据一些实施例的一种定义有覆盖目标异形图案并且形状规则的涂胶区域的盖板的结构图；
图5为根据一些实施例的一种按照涂胶区域和目标异形图案整体所对应区域对贴合后的基板和盖板进行切割所得到的形状规则的显示面板的结构图；
图6为根据一些实施例的一种按照目标异形图案对贴合后的基板和盖板进行切割所得到的显示面板的结构图；
图7为根据一些实施例的一种涂覆密封胶后所形成的显示面板的结构图；
图8为根据一些实施例的一种显示装置的结构图。
具体实施方式
下面将结合附图，对本公开一些实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开所提供的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开保护的范围。
除非上下文另有要求，否则，在整个说明书和权利要求书中，术语“包括(comprise)”及其其他形式例如第三人称单数形式“包括(comprises)”和现在分词形式“包括(comprising)”被解释为开放、包含的意思，即为“包含，但不限于”。在说明书的描述中，术语“一个实施例(one embodiment)”、“一些实施例(some embodiments)”、“示例性实施例(exemplary embodiments)”、“示例(example)”、“特定示例(specific example)”或“一些示例(some examples)”等旨在表明与该实施例或示例相关的特定特征、结构、材料或特性包括在本公开的至少一个实施例或示例中。上述术 语的示意性表示不一定是指同一实施例或示例。此外，所述的特定特征、结构、材料或特点可以以任何适当方式包括在任何一个或多个实施例或示例中。
以下，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本公开实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在描述一些实施例时，可能使用了“耦接”和“连接”及其衍伸的表达。例如，描述一些实施例时可能使用了术语“连接”以表明两个或两个以上部件彼此间有直接物理接触或电接触。又如，描述一些实施例时可能使用了术语“耦接”以表明两个或两个以上部件有直接物理接触或电接触。然而，术语“耦接”或“通信耦合(communicatively coupled)”也可能指两个或两个以上部件彼此间并无直接接触，但仍彼此协作或相互作用。这里所公开的实施例并不必然限制于本文内容。
“A和/或B”，包括以下三种组合：仅A，仅B，及A和B的组合。
本文中“用于”或“被配置为”的使用意味着开放和包容性的语言，其不排除适用于或被配置为执行额外任务或步骤的设备。
如本文中所使用，根据上下文，术语“如果”任选地被解释为意思是“当……时”或“在……时”或“响应于确定”或“响应于检测到”。类似地，根据上下文，短语“如果确定……”或“如果检测到[所陈述的条件或事件]”任选地被解释为是指“在确定……时”或“响应于确定……”或“在检测到[所陈述的条件或事件]时”或“响应于检测到[所陈述的条件或事件]”。
另外，“基于”的使用意味着开放和包容性，因为“基于”一个或多个所述条件或值的过程、步骤、计算或其他动作在实践中可以基于额外条件或超出所述的值。
如本文所使用的那样，“大约”或“大致”包括所阐述的值以及处于特定值的可接受偏差范围内的平均值，其中所述可接受偏差范围如由本领域普通技术人员考虑到正在讨论的测量以及与特定量的测量相关的误差(即，测量系统的局限性)所确定。
本文参照作为理想化示例性附图的剖视图和/或平面图描述了示例性实施方式。在附图中，为了清楚，放大了层和区域的厚度。因此，可设想到由于例如制造技术和/或公差引起的相对于附图的形状的变动。因此，示例性实施方式不应解释为局限于本文示出的区域的形状，而是包括因例如制造而引起的形状偏差。例如，示为矩形的蚀刻区域通常将具有弯曲的特征。因此，附 图中所示的区域本质上是示意性的，且它们的形状并非旨在示出设备的区域的实际形状，并且并非旨在限制示例性实施方式的范围。
随着OLED产品的发展，市场对异形OLED显示面板产品(例如智能腕表和智能眼镜等可穿戴式的显示面板产品)具有较大的需求。
相关技术中，异形OLED显示面板在封装过程中通常按照显示面板的形状进行胶体的涂布，然而受点胶设备及异形OLED显示面板周边设计的影响，胶体很难对异形显示面板的显示区域完全填充。例如点胶设备基于往复运动进行点胶过程中，当异形显示面板具有弧形边缘时，异形显示面板的弧形内边缘位置容易出现胶体难以填充或填充不均的问题。对于顶发射OLED显示面板来说，由于显示区域内同时存在胶体的填充区与未填充区，这将容易导致显示亮度和色彩出现差异，从而造成显示不均匀的问题。另外，胶体填充不均也容易引起显示面板的盒厚不均，这样在切割或者磨边时边缘玻璃因受力不均容易发生破裂而影响显示面板的品质，甚至导致报废，从而影响产品良率。
基于此，本公开一些实施例提供一种显示面板的封装方法。如图1所示，该方法包括步骤S101～S104。
参照图4，S101：在盖板1上定义覆盖目标异形图案4并且形状规则的涂胶区域10。
其中，目标异形图案4可以为显示面板9所预设的异形形状的图案。
继续参照图4，S102：在涂胶区域10形成封装胶。
参照图3A和图4，S103：将形成有封装胶的盖板1与形成有目标异形图案4的基板7贴合，使目标异形图案4中的显示区5位于涂胶区域10内。
参照图3A、图4以及图6，S104：按照目标异形图案4对贴合后的基板7和盖板1进行切割，得到显示面板9。
在一些示例中，盖板1可以采用玻璃盖板。基板7的材料可以为石英或者玻璃等。
由于上述显示面板9是按照目标异形图案4进行切割所得，因此，显示面板9具有与目标异形图案4相同或大致相同的形状。为了便于描述，后文将按照上述目标异形图案4切割所得的显示面板9称为异形显示面板。
其中，异形显示面板具有不同于矩形的形状。例如，异形显示面板可以为具有心形、五角星或云朵等形状的显示面板。
在一些示例中，如图3A所示，异形显示面板的形状和尺寸与目标异形图案4的形状和尺寸相同或大致相同。例如，在上述方法的实施过程中，可根 据所要形成的异形显示面板的形状和尺寸，预先在基板7上形成形状和尺寸与异形显示面板的形状和尺寸大致相同的图案，而形成于基板7上的图案即可称为目标异形图案4。
对于目标异形图案的形成，示例性的，可通过预先在基板上按照设计的异形形状和设定位置布置发光层和电路结构等结构。例如，发光层可以对应位于显示区，电路结构可以设置于显示区的边缘。这样，在基板上便形成了上述目标异形图案。在将基板与盖板对应贴合后，按照此图案进行切割即可得到与该目标异形图案相对应的异形显示面板。
在一些示例中，上述形状规则的涂胶区域指代由规则形状所围成的可以进行涂胶的区域。而该规则形状是由若干条线段依次连接所围成的进行涂胶的封闭图形，且该封闭图形中任意相邻两条线段之间的夹角大约为90度。示例性的，规则形状可以为矩形(例如长方形或者正方形)等形状。这样能够有效避免点胶设备在往复点胶过程中出现涂胶区域的周边难以填充胶体的问题，从而有助于对涂胶区域形成良好的涂覆效果，进而有利于提升显示面板的显示效果及其生产良率。
此外，上述封装胶可以为紫外(Ultraviolet，UV)固化胶或热固化胶，其材料可以为树脂、光引发剂或固化剂等，本公开实施例对此不作具体限定。
在本公开一些实施例中，由于涂胶区域覆盖目标异形图案且具有规则形状，因此，无论目标异形图案呈哪种形状，都可以按照涂胶区域的规则形状进行胶体的涂覆，且能够使盖板上对应目标异形图案区域内的胶体形成良好的填充效果。这样，在将盖板与基板贴合并使目标异形图案中的显示区位于涂胶区域内时，显示区也便可以被胶体有效填充。然后按照目标异形图案对贴合后的基板和盖板进行切割就可以得到相应的异形显示面板。
本公开可用于不同形状和尺寸的异形显示面板的封装。此外，本公开可以有效避免封装工艺中的涂胶过程受到点胶设备以及异形显示面板形状、尺寸和周边设计等的影响和限制，从而使目标异形图案中的显示区在基板和盖板贴合后能够被胶体填充均匀且充分，从而有助于解决由于显示区胶体涂覆不均而导致的显示面板显示亮度和色彩出现差异的问题。另外，由于显示区内部的胶体填充均匀，这有助于使异形显示面板保持均匀的盒厚，从而能够有效避免切割时出现基板和/或盖板边缘出现破裂的问题，进而有助于提升异形显示面板品质，提升产品良率。同时，本公开的涂胶工艺比较简单，还有利于提高异形显示面板涂胶效率。
本公开的一些实施例中，如图2所示，该封装方法包括步骤S201～S206。
参照图4，S201：在盖板1上定义覆盖目标异形图案4并且形状规则的涂胶区域10。
继续参照图4，S202：在涂胶区域10中的周边区域涂覆第一封装胶，以形成封闭且形状规则的第一封装区3；在第一封装区3所包围的区域内填充第二封装胶，以形成第二封装区2；其中，第二封装胶的粘度小于第一封装胶的粘度。
S203：对第一封装胶和第二封装胶进行固化处理。
参照图3A和图4，S204：将盖板1与形成有目标异形图案4的基板7贴合，使目标异形图案4中的显示区5位于涂胶区域10内。
参照图3A、图4以及图6，S205：按照目标异形图案4对贴合后的基板7和盖板1进行切割，得到显示面板9。
参照图7，S206：在显示面板9的边缘涂覆密封胶14，完成显示面板9的封装。
如图3A所示，在基板7上预先形成目标异形图案4，该目标异形图案4可通过在基板7上将发光层和电路结构等结构布置成设计的异形形状而获得。这样在对贴合后的基板7和盖板进行切割时，按照此目标异形图案4即可得到相应的异形形状，即可形成异形显示面板。
为了能够清楚地理解本公开一些实施例及其实施过程，下面将以目标异形图案4为心形为例对本公开一些实施进行详细描述。
在本公开一些实施例中，参照图3A，设定异形显示面板的形状为心形，然后便可按照所设定的心形形状和尺寸在基板7上形成与该心形形状和尺寸相同或大致相同的目标异形图案4。示例性的，可在基板7的预设位置基于所设定的心形的形状和尺寸设计异形显示面板的显示区5，并在该显示区5内设置发光层，发光层例如包括OLED器件。然后在显示区5的周边设计边框区11，边框区11和显示区5整体便构成了目标异形图案4。
其中，显示区5的形状可以与目标异形图案4的形状一致，例如，该显示区5可以为心形。或者，显示区5的形状与目标异形图案4的形状不同，例如，该显示区5可以为除心形以外的不规则的形状。
示例性的，显示区5尺寸可以小于目标异形图案4的尺寸。
值得说明的是，上述心形可以为近似心形的形状。也即，目标异形图案4的形状可以为与心形相似的形状，并不对心形轮廓的线条的曲率等进行限制。
此外，在一些示例中，涂胶区域10可通过目标异形图案4分别在垂直的两个方向上的最长距离来确定。示例性的，参照图3A，基板7的形状为矩形， 其长边12和短边13相互垂直。假设目标异形图案4在基板7的长边12的最长距离为a，目标异形图案4在基板7的短边13上的最长距离为b，则可根据a和b来确定涂胶区域10的形状和尺寸。此时，可以根据a和b的数值将涂胶区域10设计成能够覆盖目标异形图案4的一定尺寸的矩形(例如长方形或正方形)。
示例性的，当将涂胶区域10定义为正方形时，其边长可根据a和b中数值较大者来确定。例如a为8cm，b为9cm，可将涂胶区域10的所有边长均设计成大于或等于9cm的数值，如9cm、10cm或11cm等。
又示例性的，当将涂胶区域10定义为长方形时，其长边和短边可根据a和b分别来确定。例如a为8cm，b为9cm，可将涂胶区域10的长边和短边设计成分别大于或等于8cm和9cm的数值，如8cm和9cm、8cm和10cm、或者10cm和11cm等。
可以理解，上述数值只是用于举例说明，本公开并不限定于此，涂胶区域10的具体尺寸可根据不同情况和需要而做不同设定，只要其为形状规则且覆盖目标异形图案4的区域即可。
在一些实施例中，如图3A所示，基板7上形成有目标异形图案4的区域包括心形的显示区5和位于显示区5周边的边框区11。其中，显示区5可设置用于发光显示的OLED器件。
在一些示例中，继续参照图3A，上述边框区11包括至少一个绑定区6，每个绑定区6均可设置驱动信号线，驱动信号线可用于与外部控制电路结构(例如电路板、集成电路芯片等)通过绑定方式建立电连接。
在此基础上，本公开一些示例中，如图4所示，步骤S201包括：在盖板1上定义覆盖目标异形图案4中除所有绑定区6之外的部分并且形状规则的涂胶区域10。涂胶区域10具体可通过目标异形图案4除所有绑定区6之外的部分分别在垂直的两个方向上的最长距离来确定，此方法与上述涂胶区域10通过目标异形图案4分别在垂直的两个方向上的最长距离来确定类似，只需要将上述一些实施例中的目标异形图案4替换为目标异形图案4除所有绑定区6之外的部分即可，此处不再赘述。
由于绑定区6不需要涂覆胶体，所以在定义涂胶区域10时，只需要将涂胶区域10定义为覆盖目标异形图案4中除所有绑定区6之外的部分所在的区域即可。
这样，在将盖板1与形成有目标异形图案4的基板7对应贴合时，既有利于防止胶体流入绑定区6内，提升驱动信号线与外部控制电路结构的电连 接效果；也有利于节省胶材，降低生产成本。
值得说明的是，绑定区6的位置和数量等可以根据目标异形图案4的形状进行灵活设置。例如，参照图3A，目标异形图案4除绑定区6以外的部分可以设置为心形。又例如，参照图3B，包括绑定区6以内的目标异形图案4整体形状可以设置为心形。本公开对绑定区6的位置和数量等设计不作限制。
在本公开一些示例中，涂胶区域10为覆盖目标异形图案4中除所有绑定区6之外的部分并且具有最小面积的形状规则的区域。仍以上述心形的异形形状为例，继续参照图3A和图3B，假设心形的目标异形图案4中除所有绑定区6之外的部分在基板7的长边12的最长距离为c，心形的目标异形图案4中除所有绑定区6之外的部分在基板7的短边13上的最长距离为d，则可将涂胶区域10定义为边长分别为c和d的长方形，此长方形区域可作为覆盖目标异形图案4中除所有绑定区6之外的部分且具有最小面积的涂胶区域10。
这样设置，既能够满足覆盖目标异形图案4中除所有绑定区6之外的部分的要求，便于涂胶；又可以减小涂胶面积，有利于节省胶材；同时还有利于为后续的切割操作留出较大空间。
需要说明的是，以上各个实施例中以矩形区域作为涂胶区域10进行示例，但这并不对涂胶区域10的形状进行限定，涂胶区域10只要满足覆盖目标异形图案4且形状规则即可。此外，具有最小面积且覆盖目标异形图案4的涂胶区域也不以矩形区域作为限制。
在本公开一些实施例中，对于步骤S202，参照图4，在涂胶区域10中的周边区域涂覆第一封装胶，以形成呈框型的第一封装区3；在第一封装区3所包围的区域内填充第二封装胶，以形成第二封装区2。
在一些示例中，第一封装胶可选用粘度较大、阻水性较强的胶体作为起到封装作用的坝胶(Dam胶)，这样有助于使盖板1和基板7连接以形成密闭空间，从而对显示面板形成有效保护。而第二封装胶可选用粘度较小、流动性较大且透光率较高的胶体作为起到填充和支撑作用的填充胶(Filler胶)。第二封装胶均匀填充在第一封装胶所限定的区域内，这样不仅有助于维持均匀的盒厚，从而有利于保证显示效果的均匀性；同时还有助于避免造成面内薄膜压伤和切割时易出现破片等风险，从而有利于增加显示面板的强度，进而使显示面板能够有效地应对外部压力的变化。
本公开对于第一封装胶和第二封装胶的材料的成分不进行限定。示例性的，第一封装胶和第二封装胶均可以包括环氧树脂和/或聚甲基丙烯酸等。第一封装胶和第二封装胶的材料的成分可以相同，也可以不相同。当第一封装 胶和第二封装胶的材料的成分相同时，第一封装胶和第二封装胶材料的成分的配比不同，以使第一封装胶的粘度相对较大；而第二封装胶的粘度较小、流动性较大且透光率较高。
对第一封装胶和第二封装胶进行的固化处理可以根据第一封装胶和第二封装胶的类型选择相应的固化处理方法。例如，若第一封装胶为UV固化胶，则可选择UV固化处理方法。若第一封装胶为热固化胶，则可选择热固化处理方法。第二封装胶与第一封装胶类似，此处不再赘述。此外，第一封装胶和第二封装胶可以为同一类型的固化胶，例如均为UV固化胶或热固化胶。第一封装胶和第二封装胶也可以为不同类型的固化胶。
参照图3A和图4，本公开一些实施例通过将盖板1与形成有目标异形图案4的基板7贴合，使显示区5位于第二封装区2以内且绑定区6位于第一封装区3以外。这样有助于使得位于显示区5内部的第二封装胶(例如填充胶)能够充分且均匀地填充，从而有利于维持均匀的盒厚和保证良好的发光特性，进而有利于提升显示质量。此外，第一封装胶(例如坝胶)还可以有效地阻挡填充胶流入绑定区6，从而能够有效避免填充胶对位于绑定区6内的电路结构形成覆盖而不利于驱动信号线的绑定。
在此基础上，按照目标异形图案4对贴合后的基板7和盖板1进行切割，这样即可通过一次切割的方式得到显示面板9。如图6所示，第一封装区3经切割后形成第一胶体层3＇，第二封装区2经切割后形成第二胶体层2＇，第一胶体层3＇和第二胶体层2＇构成显示面板9的胶体层10＇。由于已将目标异形图案4边缘外的坝胶和填充胶去除，目标异形图案4边缘内的大部分区域也无坝胶，而只保留了绑定区6位置处的坝胶，因此更利于窄边框或无边框显示的实现。
在本公开一些实施例中，对于步骤S205，也可通过两次切割的方式来得到显示面板9。示例性的，可先按照定义的涂胶区域10和目标异形图案4整体所对应区域对贴合后的基板7和盖板1进行第一次切割，以形成如图5所示的形状规则的半成品显示面板8。然后通过切割和/或磨边工艺将半成品显示面板8位于目标异形图案4边缘外的基板、封装胶(例如坝胶和填充胶)以及盖板1去除，从而得到如图6所示的显示面板9。这样首先可以将贴合后的基板7和盖板1切割形成独立的形状规则的半成品显示面板8，这样便于切割工具(例如切割刀)根据目标异形图案4进行下一步的切割操作，有利于形成流水化的生产线作业，提高生产效率。
值得说明的是，不管是通过一次切割还是通过两次切割的方式来制作得 到显示面板9，在一些示例中，在保留绑定区6位置处的坝胶的基础上，还可以根据需要保留其他所需保留的位置处的坝胶。
示例性的，该“其他所需保留的位置”例如可以包括安装区和/或装饰区。其中，安装区可以用于显示面板的固定和安装。而装饰区可以用于对显示面板的周边进行装饰。
在本公开一些实施例中，对于步骤S206，如图7所示，在显示面板9的边缘涂覆密封胶14，完成显示面板9的封装。示例性的，可在切割后形成的异形基板7＇和异形盖板1＇之间的边缘区域涂覆密封胶14进行补强并固化，使封装后的显示面板9能够保持较高的强度与粘附力。
其中，密封胶14可以为热固性胶体或紫外固化胶，本公开对此不作限定。
本公开一些实施例还提供一种显示面板9，该显示面板9可通过上述的封装方法制成。
在本公开一些实施例中，如图7所示，该显示面板9包括异形基板7＇、异形盖板1＇和胶体层10＇。异形基板7＇包括显示区5，异形盖板1＇的形状和尺寸与异形基板7＇的形状和尺寸相同或大致相同，胶体层10＇位于异形基板7＇和异形盖板1＇之间且至少覆盖显示区5。其中，异形基板7＇和异形盖板1＇可通过上述方法中的对基板7和盖板1进行切割而得到；而胶体层10＇则可通过上述方法中对涂胶区域10进行切割而形成。
本公开一些实施例提供的显示面板9包括异形基板7＇、异形盖板1＇和胶体层10＇，其中的显示区5被胶体层10＇覆盖，也即显示区5能够被胶体填充均匀且充分，从而有助于解决因为胶体涂覆不均而导致的显示不均匀问题。另外，内部均匀的胶体也可使显示面板9保持均匀的盒厚，从而避免了切割时出现基板和/或盖板边缘破裂的问题，因而提升了显示面板品质。
在本公开一些实施例中，参照图6，异形基板7＇包括位于显示区5的周侧的至少一个绑定区6，胶体层10＇包括第一胶体层3＇和第二胶体层2＇。其中，第一胶体层3＇可由上述方法中经切割第一封装区3后而形成，第二胶体层2＇可由上述方法中经切割第二封装区2后而形成。也即，第一胶体层3＇包括至少一组第一封装胶，第二胶体层2＇包括第二封装胶。
其中，第二封装胶覆盖显示区5，所有第一封装胶均设置于第二封装胶外周边，一个绑定区6位于一组第一封装胶远离第二封装胶的一侧。示例性的，绑定区6的数量与第一封装胶的数量相等，此时，绑定区6与第一封装胶一一对应。
在一些示例中，第一封装胶的粘度大于第二封装胶的粘度。示例性的， 第一封装胶可选用粘度较大、阻水性较强的胶体作为起到封装作用的坝胶(Dam胶)。这样有助于使异形盖板1＇和异形基板7＇之间可以连接形成密闭空间，从而对显示面板9形成有效保护。第二封装胶可选用粘度较小、流动性较大且透光率较高的胶体作为填充胶(Filler胶)，第二封装胶均匀填充于显示面板9的内部，从而有利于保证显示效果的均匀性；同时还有助于避免造成面内薄膜压伤和切割时易出现的破片等风险，从而有利于增加显示面板9的强度，进而使显示面板9能够有效地应对外部压力的变化。
通过这样设置，可使得显示区5内部能够充分且均匀地填充坝胶，有助于保证均匀的盒厚和良好的发光特性，从而可以提升显示质量；同时，设置于填充胶和绑定区6之间的坝胶也可有效地阻挡填充胶流入绑定区6，从而避免填充胶对电路结构产生影响。另外，由于异形基板7＇边缘外的坝胶和填充胶已去除，边缘内的大部分区域也无坝胶，而只保留了绑定区6位置处的坝胶，因此有利于窄边框或无边框显示的实现。
在一些示例中，异形基板7＇除了保留绑定区6位置处的坝胶以外，还可在其他所需保留的位置同样保留有坝胶。示例性的，该“其他所需保留的位置”可以包括安装区和/或装饰区，这样有利于扩展显示面板的使用场景。例如将该显示面板9置于商场或者一些需要引人注目的位置，其外形可以达到良好的引人注意的效果。
在本公开一些实施例中，参照图7，显示面板9进一步包括涂覆于异形基板7＇和异形盖板1＇整体的边缘的密封胶14。示例性的，密封胶14可涂覆于异形基板7＇和异形盖板1＇之间的边缘区域，这样可以起到一定的补强作用，从而有助于使显示面板9保持较高的强度与粘附力。
上述结构可通过前面方法中对应的步骤形成，具体形成过程可参照方法中的具体描述，此处不再赘述。
本公开一些实施例还提供一种显示装置15，如图8所示，该显示装置15包括上述一些实施例中的显示面板9，具有上述一些实施例中的显示面板9的有益效果，在此不再赘述。
在一些示例中，显示装置15还包括驱动芯片和供电电源。驱动芯片被配置为驱动显示面板9进行显示，供电电源被配置为向显示面板15提供电能。
需要说明的是，本公开一些实施例提供的显示面板或显示装置可以是显示不论运动(例如，视频)还是固定(例如，静止图像)的且不论文字还是图画的图像的任何装置。更明确地说，上述实施例可实施在多种电子装置中或与多种电子装置关联，该多种电子装置例如(但不限于)移动电话、无线 装置、个人数据助理(PDA)、手持式或便携式计算机、GPS接收器/导航器、相机、MP3播放器、摄像机、游戏控制台、手表、时钟、计算器、电视监视器、平板显示器、计算机监视器、汽车显示器(例如，里程表显示器等)、导航仪、座舱控制器和/或显示器、相机视图的显示器(例如，车辆中后视相机的显示器)、电子相片、电子广告牌或指示牌、投影仪、建筑结构、包装和美学结构(例如，对于一件珠宝的图像的显示器)等。
应当注意，尽管在附图中以特定顺序描述了本公开方法的操作，但是，这并非要求或者暗示必须按照该特定顺序来执行这些操作，或是必须执行全部所示的操作才能实现期望的结果。相反，流程图中描绘的步骤可以改变执行顺序。附加地或备选地，可以省略某些步骤，将多个步骤合并为一个步骤执行，和/或将一个步骤分解为多个步骤执行。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (15)

  1. 一种显示面板的封装方法，包括：
    在盖板上定义覆盖目标异形图案并且形状规则的涂胶区域；
    在所述涂胶区域形成封装胶；
    将形成有所述封装胶的所述盖板与形成有所述目标异形图案的基板贴合，使所述目标异形图案中的显示区位于所述涂胶区域内；
    按照所述目标异形图案对贴合后的基板和盖板进行切割，得到所述显示面板。
  2. 根据权利要求1所述的封装方法，其中，所述封装胶包括第一封装胶和第二封装胶，所述在所述涂胶区域形成封装胶，包括：
    在所述涂胶区域中的周边区域涂覆所述第一封装胶，以形成封闭且形状规则的第一封装区；
    在所述第一封装区所包围的区域内填充所述第二封装胶，以形成第二封装区；其中，所述第二封装胶的粘度小于所述第一封装胶的粘度。
  3. 根据权利要求2所述的封装方法，其中，所述在所述涂胶区域中的周边区域涂覆所述第一封装胶，以形成封闭且形状规则的第一封装区，包括：
    在所述涂胶区域中的周边区域涂覆所述第一封装胶，以形成呈框型的第一封装区。
  4. 根据权利要求2或3所述的封装方法，其中，所述将形成有所述封装胶的所述盖板与形成有所述目标异形图案的基板贴合，使所述目标异形图案中的显示区位于所述涂胶区域内，包括：
    将形成有所述封装胶的所述盖板与形成有所述目标异形图案的基板贴合，使所述显示区位于所述第二封装区内。
  5. 根据权利要求2～4中任一项所述的封装方法，其中，所述基板上形成有所述目标异形图案的区域包括位于所述显示区的周侧的至少一个绑定区；
    在将形成有所述封装胶的所述盖板与形成有所述目标异形图案的基板贴合的情况下，所述至少一个绑定区位于所述第一封装区远离所述第二封装区的一侧。
  6. 根据权利要求1～4中任一项所述的封装方法，其中，所述基板上形成有所述目标异形图案的区域包括位于所述显示区的周侧的至少一个绑定区，所述在盖板上定义覆盖目标异形图案并且形状规则的涂胶区域，包括：
    在盖板上定义覆盖所述目标异形图案中除所述至少一个绑定区以外的部分并且形状规则的涂胶区域。
  7. 根据权利要求6所述的封装方法，其中，所述涂胶区域为覆盖所述目标异形图案中除所述至少一个绑定区以外的部分且具有最小面积的形状规则的区域。
  8. 根据权利要求1～7中任一项所述的封装方法，其中，在所述将形成有所述封装胶的所述盖板与形成有所述目标异形图案的基板贴合之前，所述方法还包括：
    对所述封装胶进行固化处理。
  9. 根据权利要求1～8中任一项所述的封装方法，其中，所述按照所述目标异形图案对贴合后的基板和盖板进行切割，得到所述显示面板，包括：
    按照所述涂胶区域和所述目标异形图案整体所对应区域对贴合后的基板和盖板进行第一次切割，以形成形状规则的半成品显示面板；
    通过切割和/或磨边工艺将所述半成品显示面板位于所述目标异形图案所对应区域以外的基板、封装胶和盖板去除，得到所述显示面板。
  10. 根据权利要求1～9中任一项所述的封装方法，其中，在所述得到所述显示面板之后，所述方法还包括：
    在所述显示面板的边缘涂覆密封胶，完成所述显示面板的封装。
  11. 一种显示面板，包括：
    异形基板，所述异形基板包括显示区；
    形状和尺寸与所述异形基板的形状和尺寸相同或大致相同的异形盖板；以及，
    位于所述异形基板和所述异形盖板之间且至少覆盖所述显示区的胶体层。
  12. 根据权利要求11所述的显示面板，其中，
    所述异形基板包括位于所述显示区的周侧的至少一个绑定区；
    所述胶体层包括第二封装胶和至少一组第一封装胶，所述第二封装胶覆盖所述显示区，所述至少一组第一封装胶设置于所述第二封装胶外周边，一个所述绑定区位于一组所述第一封装胶远离所述第二封装胶的一侧；其中，所述第一封装胶的粘度大于所述第二封装胶的粘度。
  13. 根据权利要求12所述的显示面板，其中，所述绑定区和所述第一封装胶的数量相等。
  14. 根据权利要求11～13中任一项所述的显示面板，还包括：
    涂覆于所述异形基板和所述异形盖板整体的边缘的密封胶。
  15. 一种显示装置，包括：如权利要求11～14中任一项所述的显示面板。
PCT/CN2021/086788 2020-04-16 2021-04-13 显示面板的封装方法、显示面板及显示装置 WO2021208876A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/779,805 US20220407031A1 (en) 2020-04-16 2021-04-13 Packaging method of display panel, display panel and display apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010300473.9A CN111477770A (zh) 2020-04-16 2020-04-16 异形显示面板的封装方法、异形显示面板及显示装置
CN202010300473.9 2020-04-16

Publications (1)

Publication Number Publication Date
WO2021208876A1 true WO2021208876A1 (zh) 2021-10-21

Family

ID=71753563

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/086788 WO2021208876A1 (zh) 2020-04-16 2021-04-13 显示面板的封装方法、显示面板及显示装置

Country Status (3)

Country Link
US (1) US20220407031A1 (zh)
CN (1) CN111477770A (zh)
WO (1) WO2021208876A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111477770A (zh) * 2020-04-16 2020-07-31 合肥京东方卓印科技有限公司 异形显示面板的封装方法、异形显示面板及显示装置
CN114360393A (zh) * 2020-10-14 2022-04-15 上海和辉光电股份有限公司 一种异形屏的制备方法
CN112960226B (zh) * 2021-04-07 2022-12-27 南京秦邦吉品农业开发有限公司 一种针对竹筐的高贴合度贴标设备
CN113725391B (zh) * 2021-08-31 2024-06-21 昆山工研院新型平板显示技术中心有限公司 显示面板的制作方法、显示面板及电子设备
CN116584175A (zh) * 2021-10-29 2023-08-11 京东方科技集团股份有限公司 显示面板母板、显示面板和显示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101867024A (zh) * 2010-06-01 2010-10-20 友达光电股份有限公司 封装方法
US20190157624A1 (en) * 2016-10-19 2019-05-23 Shenzhen China Star Optoelectronics Technology Co., Ltd. Manufacturing method for oled display panel
CN110112323A (zh) * 2019-06-14 2019-08-09 京东方科技集团股份有限公司 一种oled封装结构、封装方法及显示器件
CN110211999A (zh) * 2019-05-31 2019-09-06 昆山国显光电有限公司 显示面板制备方法及显示面板
CN111477770A (zh) * 2020-04-16 2020-07-31 合肥京东方卓印科技有限公司 异形显示面板的封装方法、异形显示面板及显示装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100671644B1 (ko) * 2006-01-24 2007-01-19 삼성에스디아이 주식회사 유기 전계 발광 표시장치 및 그 제조 방법
CN104124268A (zh) * 2014-07-21 2014-10-29 京东方科技集团股份有限公司 有机发光二极管显示面板及其制造方法
CN105632339B (zh) * 2014-10-27 2018-08-10 群创光电股份有限公司 显示设备
CN106953028A (zh) * 2017-05-19 2017-07-14 京东方科技集团股份有限公司 一种显示基板和显示面板
CN207909878U (zh) * 2018-03-26 2018-09-25 京东方科技集团股份有限公司 显示面板及具有其的显示装置
CN109256049B (zh) * 2018-09-27 2021-02-02 上海中航光电子有限公司 异形显示面板和显示装置
CN110098350A (zh) * 2019-06-13 2019-08-06 京东方科技集团股份有限公司 显示面板、封装装置及封装方法
CN110429207B (zh) * 2019-08-07 2022-06-03 合肥鑫晟光电科技有限公司 显示面板、显示装置及制作方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101867024A (zh) * 2010-06-01 2010-10-20 友达光电股份有限公司 封装方法
US20190157624A1 (en) * 2016-10-19 2019-05-23 Shenzhen China Star Optoelectronics Technology Co., Ltd. Manufacturing method for oled display panel
CN110211999A (zh) * 2019-05-31 2019-09-06 昆山国显光电有限公司 显示面板制备方法及显示面板
CN110112323A (zh) * 2019-06-14 2019-08-09 京东方科技集团股份有限公司 一种oled封装结构、封装方法及显示器件
CN111477770A (zh) * 2020-04-16 2020-07-31 合肥京东方卓印科技有限公司 异形显示面板的封装方法、异形显示面板及显示装置

Also Published As

Publication number Publication date
US20220407031A1 (en) 2022-12-22
CN111477770A (zh) 2020-07-31

Similar Documents

Publication Publication Date Title
WO2021208876A1 (zh) 显示面板的封装方法、显示面板及显示装置
US20220045135A1 (en) Display panel and display device
CN109148722B (zh) 一种有机发光显示面板、其制作方法及显示装置
US20210328202A1 (en) Flexible display device manufacturing method and flexible display device
US10797271B2 (en) Manufacturing method for OLED display panel
US10312316B2 (en) Display apparatus and method of manufacturing the same, package cover plate
CN109456708A (zh) 胶膜、显示面板的封装方法及显示装置
CN112599570A (zh) 显示面板及其制备方法
WO2020056862A1 (zh) Oled封装结构的保护膜、oled封装结构及其保护膜的制备方法
CN110827702A (zh) 一种拼装显示面板和拼装显示面板的制程方法
WO2020087738A1 (zh) 有机发光二极管显示器及其制造方法
CN104898316A (zh) 薄型液晶面板的制作方法
US20220052239A1 (en) Micro display panel, manufacturing method thereof, and spliced display panel
CN104827744A (zh) 面板贴合方法、面板总成及电子装置
US20240194838A1 (en) Manufacturing method of splicing display panel and splicing display panel
CN203367368U (zh) 封装基板、oled显示面板和显示装置
US9142807B2 (en) Method for manufacturing flexible OLED (organic light emitting display) panel
US20190207152A1 (en) Oled panel and method for fabricating the same
CN206301776U (zh) 显示面板
CN111474749B (zh) 液晶显示面板的制作方法、液晶显示面板及液晶显示装置
CN108649058B (zh) 一种显示母板及其显示屏、显示终端
CN108448011B (zh) 一种显示母板及其显示屏、显示终端
TWI530396B (zh) 面板貼合方法、面板總成及電子裝置
US11233221B2 (en) Manufacturing method of a rigid organic light-emitting diode (OLED) display panel and a display panel
WO2023226033A1 (zh) 显示基板、模具组件、拼接显示模组及显示装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21789067

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21789067

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 21789067

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 28/04/23)

122 Ep: pct application non-entry in european phase

Ref document number: 21789067

Country of ref document: EP

Kind code of ref document: A1