Display device and manufacturing method therefor

Abstract

A display device and a manufacturing method therefor. The display device comprises a support layer and a display panel; the display panel comprises a driving backplane and a packaging layer; the display panel comprises a display portion and bending portions; the bending portions are located at corners of the display panel; the support layer is located on the side of the driving backplane of the display portion distant from the packaging layer; and the bending portions are bent to the side of the support layer distant from the display portion. Therefore, for the display device, the rectangular display panel is bent in a special shape, thereby realizing a special shape design. In addition, the display panel of the display device and a conventional rectangular display panel may share at least a portion of a mask, thereby greatly reducing costs of research and development and manufacturing.

Description

Display device and its manufacturing method

[0001] This application claims priority to Chinese Patent Application No. 202410814383.X, filed on June 21, 2024, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0002] This disclosure relates to a display device and a method for manufacturing the same. Background Technology

[0003] Organic light-emitting diode (OLED) display devices have become a research hotspot and a direction for technological development for major manufacturers due to their advantages such as wide color gamut, high contrast, thin and light design, self-illumination, vivid colors, low power consumption and wide viewing angle.

[0004] The light-emitting principle of an organic light-emitting diode (OLED) display device is as follows: The sub-pixel of an OLED display device includes an anode, a cathode, and an organic light-emitting layer located between the anode and the cathode; during the light-emitting display, electrons and holes are injected from the cathode and the anode into the electron transport layer and the hole transport layer, respectively. Then, the electrons and holes migrate from the electron transport layer and the hole transport layer to the organic light-emitting layer, meet in the organic light-emitting layer, form excitons, and emit visible light.

[0005] On the other hand, with the development of the electric vehicle industry and the development of automotive intelligence, in-vehicle display devices have gradually evolved from liquid crystal displays to organic light-emitting diode (OLED) displays. Summary of the Invention

[0006] This disclosure provides a display device and a method for manufacturing the same. The display device can bend a rectangular display panel into an irregular shape, thereby achieving an irregular design. Furthermore, the display panel of this display device and a conventional rectangular display panel can share at least a portion of the photomask, thus significantly reducing research and development and manufacturing costs.

[0007] At least one embodiment of this disclosure provides a display device, comprising: a support layer; and a display panel including a driving backplate and an encapsulation layer; the display panel includes a display portion and a bent portion, the bent portion being located at a corner of the display panel, the support layer being located on the side of the driving backplate of the display portion away from the encapsulation layer, and the bent portion being bent to the side of the support layer away from the display portion.

[0008] For example, in a display device provided in one embodiment of this disclosure, the planar shape of the display panel when it is not bent is rectangular.

[0009] For example, in a display device provided in an embodiment of this disclosure, the driving backplate of the display section includes a plurality of first pixel driving circuits, and the driving backplate of the bent section includes a plurality of second pixel driving circuits. The plurality of second pixel driving circuits and a portion of the first pixel driving circuits are connected to the same driving line, and the driving line includes at least one of gate lines and data lines.

[0010] For example, in a display device provided in one embodiment of this disclosure, the display section further includes a plurality of first anodes located on the side of the plurality of first pixel driving circuits near the encapsulation layer and correspondingly disposed with the plurality of first pixel driving circuits.

[0011] For example, in a display device provided in one embodiment of this disclosure, the plurality of second pixel driving circuits of the bent portion do not have an anode on the side near the encapsulation layer.

[0012] For example, in a display device provided in one embodiment of this disclosure, the bending portion further includes a plurality of second anodes located on the side of the plurality of second pixel driving circuits near the encapsulation layer and correspondingly disposed with the plurality of second pixel driving circuits. The display portion further includes a first organic light-emitting layer located on the side of the plurality of first anodes near the encapsulation layer. No organic light-emitting layer is disposed between the plurality of second anodes of the bending portion and the encapsulation layer.

[0013] For example, in a display device provided in one embodiment of this disclosure, the bending portion further includes a plurality of second anodes located on the side of the plurality of second pixel driving circuits near the encapsulation layer and correspondingly disposed with the plurality of second pixel driving circuits. The display portion further includes a first organic light-emitting layer located on the side of the plurality of first anodes near the encapsulation layer. The bending portion further includes a second organic light-emitting layer located on the side of the plurality of second anodes near the encapsulation layer.

[0014] For example, in a display device provided in one embodiment of this disclosure, the support layer includes: a main body portion located on the side of the drive backplate of the display portion away from the encapsulation layer; and a thickened portion located at a corner of the main body portion and between the bent portion and the display portion, wherein the thickened portion is at least partially in contact with the bent portion.

[0015] For example, in a display device provided in one embodiment of this disclosure, the thickened portion has a chamfered edge near the bent portion.

[0016] For example, a display device provided in one embodiment of this disclosure further includes: a filling material located between the bent portion and the thickened portion.

[0017] For example, in a display device provided in one embodiment of this disclosure, the filling material includes a thermally conductive material.

[0018] For example, a display device provided in one embodiment of this disclosure further includes a sealing structure, partially located on the side of the bent portion away from the support layer, to fix and seal the bent portion on the side of the support layer away from the display portion.

[0019] For example, in a display device provided in one embodiment of this disclosure, the sealing structure includes a thermally conductive material.

[0020] For example, in a display device provided in one embodiment of this disclosure, the sealing structure includes a light-shielding material.

[0021] For example, in a display device provided in one embodiment of this disclosure, the support layer includes a thermally conductive material for heat dissipation.

[0022] For example, in a display device provided in one embodiment of this disclosure, the display panel includes a display portion and two bent portions, the two bent portions being located at two corners of the display panel.

[0023] For example, a display device provided in one disclosed embodiment further includes a light control film located on the side of the display portion away from the support layer.

[0024] For example, a display device provided in one disclosed embodiment further includes: an anti-reflective film located on the side of the display portion away from the support layer; and a cover layer located on the side of the anti-reflective film away from the support layer.

[0025] For example, a display device provided in one disclosed embodiment further includes a touch layer located on the side of the display portion away from the support layer.

[0026] At least one embodiment of this disclosure also provides a method for manufacturing a display device, comprising: forming a display panel, the display panel including a driving backplate and an encapsulation layer; disposing the display panel on a first side of a support layer, and bending a corner of the display panel toward a second side of the support layer, such that the portion of the display panel located on the first side of the support layer forms a display portion, and the portion of the display panel located on the second side of the support layer forms a bent portion.

[0027] For example, in a method for manufacturing a display device provided in one embodiment of this disclosure, the planar shape of the display panel when it is not bent is rectangular.

[0028] For example, in a method for manufacturing a display device provided in an embodiment of this disclosure, forming the display panel includes: forming a plurality of pixel driving circuits in the driving backplate of the display panel using a first mask group, the first mask group being used for patterning a plurality of film layers of the pixel driving circuits, the plurality of pixel driving circuits including a plurality of first pixel driving circuits located in the display portion and a plurality of second pixel driving circuits located in the bending portion, the plurality of second pixel driving circuits being connected to a portion of the first pixel driving circuits via the same driving line, the driving line including at least one of gate lines and data lines.

[0029] For example, in a method for manufacturing a display device provided in an embodiment of this disclosure, forming the display panel further includes: using a second mask plate group to form a plurality of first anodes on the side of the plurality of first pixel driving circuits of the display section near the encapsulation layer, wherein the plurality of first anodes are disposed corresponding to the plurality of first pixel driving circuits.

[0030] For example, in a method for manufacturing a display device provided in an embodiment of this disclosure, the portion of the second mask group corresponding to the bend does not have a pattern, so that the plurality of second pixel driving circuits of the bend are not provided with an anode on the side near the encapsulation layer.

[0031] For example, in a method for manufacturing a display device provided in an embodiment of this disclosure, forming the display panel further includes: forming a plurality of anodes on the side of the plurality of pixel driving circuits near the encapsulation layer using a third mask group, wherein the plurality of anodes includes a plurality of first anodes and a plurality of second anodes, the plurality of first anodes are located on the side of the plurality of first pixel driving circuits near the encapsulation layer and are correspondingly disposed with respect to the plurality of first pixel driving circuits, and the plurality of second anodes are located on the side of the plurality of second pixel driving circuits near the encapsulation layer and are correspondingly disposed with respect to the plurality of second pixel driving circuits.

[0032] For example, in a method for manufacturing a display device provided in an embodiment of this disclosure, forming the display panel further includes: forming a first organic light-emitting layer on the side of the plurality of first anodes near the encapsulation layer using a first vapor deposition mask assembly, wherein the portion of the first vapor deposition mask assembly corresponding to the bend does not have a pattern, so that no organic light-emitting layer is disposed between the plurality of second anodes of the bend and the encapsulation layer.

[0033] For example, in a method for manufacturing a display device provided in an embodiment of this disclosure, forming the display panel further includes: forming an organic light-emitting layer on the side of the plurality of anodes near the encapsulation layer using a second vapor deposition mask assembly, the organic light-emitting layer including a first organic light-emitting layer and a second organic light-emitting layer, the first organic light-emitting layer being located on the side of the plurality of first anodes near the encapsulation layer, and the second organic light-emitting layer being located on the side of the plurality of second anodes near the encapsulation layer. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0035] Figure 1 is a schematic diagram of an in-vehicle display device with an irregular shape design;

[0036] Figure 2 is a schematic diagram of another vehicle-mounted display device with a rectangular design;

[0037] Figure 3 is a partial structural schematic diagram of the vehicle-mounted display device shown in Figure 1;

[0038] Figure 4 is a partial structural schematic diagram of the vehicle-mounted display device shown in Figure 2;

[0039] Figure 5 is a plan view of a display device provided in an embodiment of the present disclosure;

[0040] Figure 6 is a cross-sectional view of a display device provided in an embodiment of the present disclosure along line AB in Figure 5;

[0041] Figure 7 is a plan view of a display panel in a display device provided in an embodiment of the present disclosure when it is not bent;

[0042] Figure 8 is a three-view diagram of a support layer provided in an embodiment of this disclosure;

[0043] Figure 9A is a partial cross-sectional schematic diagram of a support layer provided in an embodiment of the present disclosure;

[0044] Figure 9B is a partial cross-sectional schematic diagram of another support layer provided in an embodiment of the present disclosure;

[0045] Figure 10 is a plan view of a display device provided in an embodiment of the present disclosure when the display panel is not bent.

[0046] Figures 11A-11C are schematic plan views of a vapor deposition mask provided in an embodiment of this disclosure;

[0047] Figure 12 is a plan view of a display device provided in an embodiment of the present disclosure when the display panel is not bent.

[0048] Figure 13 is a plan view of a display device provided in an embodiment of the present disclosure when the display panel is not bent.

[0049] Figures 14A-14C are schematic plan views of a vapor deposition mask provided in an embodiment of this disclosure;

[0050] Figure 15 is a plan view of a display device provided in an embodiment of the present disclosure when the display panel is not bent.

[0051] Figure 16 is a plan view of a display device provided in an embodiment of the present disclosure when the display panel is not bent.

[0052] Figures 17A-17C are schematic plan views of a vapor deposition mask provided in an embodiment of this disclosure;

[0053] Figure 18 is a plan view of a display device provided in an embodiment of the present disclosure when the display panel is not bent; and

[0054] Figure 19 is a flowchart illustrating a method for manufacturing a display device according to an embodiment of this disclosure. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the described embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0056] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0057] The features such as "parallel," "perpendicular," and "identical" used in the embodiments of this disclosure include features in the strict sense of "parallel," "perpendicular," and "identical," as well as cases where "approximately parallel," "approximately perpendicular," and "approximately identical" include certain errors. Considering measurement and errors associated with the measurement of a specific quantity (e.g., limitations of the measurement system), they represent the acceptable deviation range for a specific value as determined by a person skilled in the art. For example, "approximately" can mean within one or more standard deviations, or within 10% or 5% of said value. Unless otherwise specified in the following embodiments of this disclosure, the quantity of a component is implied to mean that the component can be one or more, or can be understood as at least one. "At least one" means one or more, and "more" means at least two. In the embodiments of this disclosure, "same layer" refers to the relationship between multiple film layers formed from the same material after undergoing the same step (e.g., a patterning process). Here, "same layer" does not always mean that multiple film layers have the same thickness or that multiple film layers have the same height in a cross-sectional view.

[0058] To better utilize passenger cabin space, enhance user experience, and differentiate products, the adoption of irregular (non-rectangular) designs for in-vehicle displays has become a trend. On the other hand, most automakers and products still require conventional rectangular in-vehicle displays. In this situation, to meet market demands, different photomasks need to be designed for different display shapes, thus increasing R&D and manufacturing costs.

[0059] For example, Figure 1 is a schematic diagram of an in-vehicle display device with an irregular shape design; Figure 2 is a schematic diagram of another in-vehicle display device with a rectangular design. As shown in Figure 1, the in-vehicle display device 10 includes a display panel 12, a flip-chip film 14, and a circuit board 16. The display panel 12 has a rectangular design, meaning its planar shape is rectangular. As shown in Figure 2, the in-vehicle display device 10 includes a display panel 12, a flip-chip film 14, and a circuit board 16. The display panel 12 has an irregular shape design, meaning its planar shape is irregular. As shown in Figures 1 and 2, because the display areas of these two in-vehicle display devices have different shapes, different photomasks are needed to fabricate pixel driving circuits, anode layers, organic light-emitting layers, and other devices or films, thereby increasing research and development costs and manufacturing costs.

[0060] Figure 3 is a partial structural schematic diagram of the vehicle-mounted display device shown in Figure 1; Figure 4 is a partial structural schematic diagram of the vehicle-mounted display device shown in Figure 2. As shown in Figure 3, the display panel 12 includes a display area 12A and a peripheral area 12B. The display area 12A includes multiple sub-pixels 20, and the peripheral area 12B includes a gate drive circuit unit GOA that provides gate drive signals to these sub-pixels 20 and a cathode line VSS that provides cathode signals. As shown in Figure 4, the display panel 12 also includes a display area 12A and a peripheral area 12B. The display area 12A includes multiple sub-pixels 20, and the peripheral area 12B includes a gate drive circuit unit GOA that provides gate drive signals to these sub-pixels 20 and a cathode line VSS that provides cathode signals. In addition, the peripheral area 12B of the display panel 12 also includes multiple leads 30 that electrically connect the data lines of the multiple sub-pixels 20 to the flip-chip film 14. Unlike the vehicle display device shown in Figure 3, the display panel 12 in the vehicle display device shown in Figure 4 adopts an irregular design. The corners of the display panel 12 are chamfered or beveled, and the display area 12A of the display panel 12 is also irregularly shaped. In this case, the number of sub-pixels 20 in the sub-pixel rows corresponding to the corners of the display area 12 is smaller, resulting in uneven load on the driving lines. Therefore, an additional line compensation structure 40 is needed to make the load on the driving lines of the sub-pixel rows corresponding to the corners approximately the same as the load on the driving lines of the sub-pixel rows in other areas. However, this line compensation structure 40 will undoubtedly increase the bezel width of the display panel, resulting in a poor user experience.

[0061] In response, this disclosure provides a display device including a support layer and a display panel. The display panel includes a driving backplate and an encapsulation layer. The display panel includes a display portion and a bent portion, with the bent portion located at a corner of the display panel. The support layer is located on the side of the driving backplate of the display portion away from the encapsulation layer, and the bent portion is bent to the side of the support layer away from the display portion. Therefore, this display device can bend a rectangular display panel into an irregular shape, thereby achieving an irregular design. Furthermore, the display panel of this display device and a conventional rectangular display panel can share at least a portion of the photomask, thereby significantly reducing research and development and manufacturing costs.

[0062] This disclosure also provides a method for manufacturing a display device, comprising: forming a display panel, the display panel including a driving backplate and an encapsulation layer; disposing the display panel on a first side of a support layer, and bending the corners of the display panel toward a second side of the support layer, such that the portion of the display panel on the first side of the support layer forms a display portion, and the portion of the display panel on the second side of the support layer forms a bent portion. Thus, this method for manufacturing a display device can bend a rectangular display panel into an irregular shape, thereby achieving an irregular design. Furthermore, the display panel in this method can share at least a portion of the mask with a conventional rectangular display panel, thereby significantly reducing research and development and manufacturing costs.

[0063] The display device and its manufacturing method provided in the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0064] Figure 5 is a plan view of a display device according to an embodiment of the present disclosure; Figure 6 is a cross-sectional view of a display device according to an embodiment of the present disclosure along line AB in Figure 5; Figure 7 is a plan view of a display panel in a display device according to an embodiment of the present disclosure when it is not bent.

[0065] As shown in Figures 5 and 6, the display device 200 includes a support layer 210 and a display panel 100. The display panel 100 includes a drive back plate 110 and an encapsulation layer 120. The display panel 100 includes a display portion 100A and a bent portion 100B. The bent portion 100B is located at a corner of the display panel 100. The support layer 210 is located on the side of the drive back plate 110 of the display portion 100A away from the encapsulation layer 120. The bent portion 100B is bent to the side of the support layer 210 away from the display portion 100A. That is, the bent portion 100B is located on the back of the display portion 100A, and a portion of the support layer 210 is located between the display portion 100A and the bent portion 100B. It should be noted that the bent portion 100B is connected to the display portion 100A and belongs to two parts of the display panel 100; the bent portion 100B includes not only the bent portion, but also the flat portion located on the support layer 210 away from the display portion 100A; in addition, the present embodiment does not limit the number of bent portions, and the number of bent portions can be selected according to the required shape design. On the other hand, for the sake of simplicity, only the driving backplate 110 and the encapsulation layer 120 are shown in FIG. 6, which serve as the bottom and top layers of the display panel 100, respectively.

[0066] In the display device provided in this embodiment, the display portion of the display panel can be used as a display area to display images during use, while the bent portion of the display panel does not display anything during use. Therefore, the display device can bend a rectangular display panel into an irregular shape, thereby achieving an irregular design. Furthermore, the display panel of this display device can be rectangular when not bent, thus it can share at least a portion of the photomask with a conventional rectangular display panel, thereby significantly reducing research and development and manufacturing costs.

[0067] As shown in Figure 7, the display panel 100 has a rectangular planar shape when not bent. After bending the two corners (i.e., the bent portions) along the two bending lines 101 in Figure 7, the display panel 100 can form an irregularly shaped display panel. It should be noted that the bending lines are the boundary lines between the display portion 100A and the bent portion 100B. It should also be noted that although the two bending lines 101 in Figure 7 are straight lines, embodiments of this disclosure include, but are not limited to, that the bending lines can also be curves or broken lines, thereby achieving display portions of more shapes. In other words, the boundary line between the display portion and the bent portion of the display panel can be a straight line, a curve, or a broken line.

[0068] In some examples, as shown in FIG7, the display panel 100 includes a display portion 100A and bent portions 100B located at two corners of the display portion 100A. Of course, embodiments of this disclosure include, but are not limited to, these.

[0069] In some examples, as shown in FIG7, the driving backplate 110 of the display section 100A of the display panel 100 includes a plurality of first pixel driving circuits 115A, and the driving backplate 110 of the bent section 100B of the display panel 100 includes a plurality of second pixel driving circuits 115B. The plurality of second pixel driving circuits 115B and some of the first pixel driving circuits 115A are connected to the same driving line 112, and the driving line 112 includes at least one of gate lines and data lines. Specifically, the plurality of second pixel driving circuits 115B share gate lines with the plurality of first pixel driving circuits 115A in the same row when the display panel 100 is not bent, and the plurality of second pixel driving circuits 115B share data lines with the plurality of first pixel driving circuits 115A in the same column when the display panel 100 is not bent. That is to say, the bent section of the display panel retains the pixel driving circuits and driving lines, thereby making the load on the driving lines of the display section uniform, without the need to add a line compensation structure, and reducing the bezel width while ensuring uniform driving load. On the other hand, since the bend in the display panel retains the pixel driving circuit and driving lines, the first mask assembly of the display panel can be shared with the first mask of a typical rectangular display panel, thereby reducing R&D and manufacturing costs. Thus, this display device not only achieves irregular designs and reduces R&D and manufacturing costs, but also avoids the problem of needing to add circuit compensation structures for typical irregularly shaped display devices.

[0070] It is worth noting that, since the pixel driving circuit and driving lines are retained in the curved portion, even if the light-emitting portion emits light, it can be blocked by the light-shielding structure, which will not affect the normal display of the display unit. Therefore, this embodiment does not restrict whether the curved portion emits light. On the other hand, the curved portion can be designed not to emit light, so that it does not display during use, thereby reducing the risk of light leakage and reducing power consumption; these designs will be described in detail in other embodiments below.

[0071] In some examples, as shown in FIG6, the support layer 210 includes a main body portion 212 and a thickened portion 214; the main body portion 212 is located on the side of the drive backplate 110 of the display portion 100A away from the encapsulation layer 120; the thickened portion 214 is located at the corner of the main body portion 212 and between the bent portion 100B and the display portion 100A, and the thickened portion 214 is in contact with at least a portion of the bent portion 100B. Thus, by providing the aforementioned thickened portion in the support layer, the display device can provide support for the bent portion, and the curvature of the bent portion can be prevented from being too large, thus avoiding the risk of breakage.

[0072] In some examples, as shown in Figure 6, the thickened portion 214 has a chamfered edge near the bent portion 100B, for example, a right-angle chamfer or a rounded chamfer. Therefore, because the support layer is made of a relatively hard material, the display device can prevent the edges of the thickened portion or the support layer from scratching or bumping the display panel.

[0073] For example, as shown in FIG6, the thickened portion 214 has a right-angle chamfer at the edge near the bent portion 100B. Of course, embodiments of this disclosure include, but are not limited to, the thickened portion having a rounded chamfer at the edge near the bent portion.

[0074] In some examples, the thickness of the aforementioned thickened portion may be greater than 1.5 times the thickness of the main body portion and less than 2.5 times the thickness of the main body portion. Of course, the embodiments disclosed herein include, but are not limited to, this; the thickness of the thickened portion can be designed according to actual conditions, as long as the thickness of the thickened portion is greater than the thickness of the main body portion.

[0075] In some examples, as shown in Figure 6, the display device 100 also includes a filler material 220 located between the bent portion 100B and the thickened portion 214. This arrangement allows the filler material to further support and secure the bent portion, and also prevents deformation or breakage of the bent portion.

[0076] In some examples, as shown in Figure 6, the filler material 220 includes a thermally conductive material. This filler material can thus conduct heat generated at the bend to the support layer for heat dissipation. In this case, the filler material is in contact with both the bend and the thickened portion.

[0077] For example, the filler material may include foam adhesive and organic thermally conductive materials. Of course, embodiments disclosed herein include, but are not limited to, these.

[0078] In some examples, as shown in FIG6, the display device 100 further includes a sealing structure 230, partially located on the side of the bent portion 100B away from the support layer 210, to fix and seal the bent portion 100B on the side of the support layer 210 away from the display portion 100A.

[0079] In some examples, as shown in Figure 6, because the bend 100B is bent, the encapsulation layer 120 of the bend 100B contacts the sealing structure 230, and the drive backplate 110 of the bend 100B contacts the support layer 210. The sealing structure 230, by fixing and sealing the bend 100B to the side of the support layer 210 away from the display portion 100A, further prevents water and oxygen intrusion and improves the durability of the product.

[0080] In some examples, the sealing structure 230 also includes a thermally conductive material, thereby dissipating heat from the bend 100B.

[0081] For example, the sealing structure includes at least one of resin, foam, and organic thermally conductive material. Of course, embodiments of this disclosure include, but are not limited to, these.

[0082] In some examples, the aforementioned support layer 210 may include a thermally conductive material, such as a thermally conductive metal. Thus, the support layer provides good heat dissipation while supporting the display panel.

[0083] For example, the aforementioned support layer can be an aluminum plate. Of course, embodiments of this disclosure include, but are not limited to, this.

[0084] In some examples, as shown in Figure 6, the display device 100 also includes a light control film 240 located on the side of the display unit 100A away from the support layer 210. The light control film 240, also known as a light control film, is configured to control the direction of light emitted by the display unit 100A, thereby preventing reflections, glare, and solving the problem of reflections of the display device on the windshield of a car.

[0085] In some examples, as shown in FIG6, the display device 100 further includes an anti-reflective film 250 and a cover layer 260; the anti-reflective film 250 is located on the side of the display unit 100A away from the support layer 210; the cover layer 260 is located on the side of the anti-reflective film 250 away from the support layer 210.

[0086] In some examples, as shown in FIG6, the display device 100 further includes a touch layer 270 located on the side of the display section 100A away from the support layer 210. Thus, the display device can also realize touch functionality.

[0087] In some examples, as shown in FIG5, the display device 100 also includes a flip-chip film 280 and a circuit board 290, both located on the side of the support layer 210 away from the display section 100A.

[0088] Figure 8 is a three-view diagram of a support layer provided in an embodiment of this disclosure. As shown in Figure 8, the support layer 210 includes a main body 212 and a thickened portion 214; the main body 212 is located on the side of the drive backplate 110 of the display unit 100A away from the encapsulation layer 120; the thickened portion 214 is located at the corner of the main body 212. Thus, by providing the aforementioned thickened portion in the support layer, the display device can provide support for the bent portion, and the curvature of the bent portion can be prevented from being too large, thus avoiding the risk of breakage.

[0089] As shown in Figure 8, the planar shape of the thickened portion 214 can be triangular, thus matching the triangular bending portion.

[0090] As shown in Figure 8, the edge of the thickened portion 214 is straight. Of course, the embodiments of this disclosure include, but are not limited to, the edge of the thickened portion can also be curved, in which case the planar shape of the thickened portion is fan-shaped.

[0091] Figure 9A is a partial cross-sectional schematic diagram of a support layer provided in one embodiment of the present disclosure; Figure 9B is a partial cross-sectional schematic diagram of another support layer provided in one embodiment of the present disclosure. As shown in Figure 9A, the edge of the thickened portion 214 is a right-angle chamfer; as shown in Figure 9B, the edge of the thickened portion 214 is a rounded chamfer. Therefore, because the support layer is made of a relatively hard material, the support layer can avoid scratching or bumping the display panel.

[0092] In some examples, the aforementioned support layer 210 may include a thermally conductive material, such as a thermally conductive metal. Thus, the support layer provides good heat dissipation while supporting the display panel.

[0093] For example, the aforementioned support layer can be an aluminum plate. Of course, embodiments of this disclosure include, but are not limited to, this.

[0094] Figure 10 is a plan view of a display panel in an embodiment of the present disclosure when it is not bent. As shown in Figure 10, the display panel 100 includes a display portion 100A and a bent portion 100B, with the bent portion 100B located at a corner of the display panel 100. The display panel 100 has a rectangular planar shape when it is not bent; after bending the two bent portions, the display panel 100 can be formed into an irregularly shaped display panel.

[0095] As shown in Figure 10, the driving backplate 110 of the display section 100A of the display panel 100 includes a plurality of first pixel driving circuits 115A, and the driving backplate 110 of the bent section 100B of the display panel 100 includes a plurality of second pixel driving circuits 115B. The plurality of second pixel driving circuits 115B and some of the first pixel driving circuits 115A are connected to the same driving line 112, which includes at least one of gate lines and data lines. Specifically, the plurality of second pixel driving circuits 115B share gate lines with the plurality of first pixel driving circuits 115A that are aligned in the same row when the display panel 100 is not bent, and the plurality of second pixel driving circuits 115B share data lines with the plurality of first pixel driving circuits 115A that are in the same column when the display panel 100 is not bent. In other words, the bent section of the display panel retains the pixel driving circuits and driving lines, thereby ensuring a uniform load on the driving lines of the display section, eliminating the need for additional line compensation structures, and reducing the bezel width while ensuring a uniform driving load. On the other hand, since the bend in the display panel retains the pixel driving circuit and driving lines, the first mask assembly of the display panel can be shared with the first mask of a typical rectangular display panel, thereby reducing R&D and manufacturing costs. Thus, this display device not only achieves irregular designs and reduces R&D and manufacturing costs, but also avoids the problem of needing to add circuit compensation structures for typical irregularly shaped display devices.

[0096] It is worth noting that since the drive backplate 110 of both the display section 100A and the bending section 100B of the display panel 100 forms pixel drive circuits, the drive backplate 110 of the display panel can be a mask assembly that forms the pixel drive circuit of the rectangular display panel, thereby reducing research and development and manufacturing costs.

[0097] As shown in Figure 10, the display unit 100A also includes a plurality of first anodes 130A. The plurality of first anodes 130A are located on the side of the plurality of first pixel driving circuits 115A near the encapsulation layer (not shown), that is, the plurality of first anodes 130A are located above the plurality of first pixel driving circuits 115A. The plurality of first anodes 130A are correspondingly arranged with the plurality of first pixel driving circuits 115A. With this arrangement, the first anode 130A is connected to the output terminal of the corresponding first pixel driving circuit 115A, thereby allowing the first pixel driving circuit 115A to apply a driving current to the corresponding first anode 130A.

[0098] As shown in Figure 10, the multiple second pixel driving circuits 115B of the bent portion 100B do not have an anode on the side near the encapsulation layer. In this case, although the bent portion 100B retains the second pixel driving circuits 115B and the corresponding driving lines 112, since the bent portion 100B does not have an anode, it will not emit light, thus avoiding defects such as light leakage. It should be noted that since the bent portion of this display panel does not have an anode, the mask used to form the anode of this display panel needs to be designed and manufactured separately.

[0099] Figures 11A-11C are schematic plan views of a vapor deposition mask provided in an embodiment of this disclosure; Figure 12 is a schematic plan view of a display panel in another display device provided in an embodiment of this disclosure when it is not bent. The display panel shown in Figure 12 is based on the display panel shown in Figure 10, with an organic light-emitting layer formed by the vapor deposition masks shown in Figures 11A-11C, specifically as follows: on the display panel shown in Figure 10, a first color organic light-emitting layer is formed by the vapor deposition mask shown in Figure 11A, then a second color organic light-emitting layer is formed by the vapor deposition mask shown in Figure 11B, and finally a third color organic light-emitting layer is formed by the vapor deposition mask shown in Figure 11C. Finally, as shown in Figure 12, the display portion 100A of the display panel 100 further includes a first organic light-emitting layer 140A (including the three colors of organic light-emitting layers mentioned above), located on the side of the plurality of first anodes near the encapsulation layer 120, that is, above the plurality of first anodes; the bent portion 100B of the display panel 100 further includes a second organic light-emitting layer 140B (including the three colors of organic light-emitting layers mentioned above), located on the side of the plurality of second pixel driving circuits near the encapsulation layer 120, that is, above the plurality of second pixel driving circuits. It should be noted that the first and second organic light-emitting layers mentioned above both include organic light-emitting layers of different colors. Here, "first" and "second" are only used to distinguish whether the organic light-emitting layer is located in the display portion or the bent portion; since the patterns of the organic light-emitting layer and the anode are roughly the same, a light color is used to represent the anode in Figure 10, and a dark color is used to represent the organic light-emitting layer in Figure 12; in addition, since no anode is formed in the bent portion, the second organic light-emitting layer in the bent portion is located above the plurality of second pixel driving circuits.

[0100] As shown in Figures 11A-11C, the display panel can use the vapor deposition mask assembly of a typical rectangular display panel to fabricate the organic light-emitting layer, thus sharing the vapor deposition mask assembly with a typical rectangular display panel, thereby reducing R&D and manufacturing costs.

[0101] For example, the first color mentioned above is red, the second color is green, and the third color is blue. Of course, the embodiments disclosed herein include, but are not limited to, these.

[0102] Figure 13 is a plan view of a display panel in an embodiment of the present disclosure when it is not bent. As shown in Figure 13, the display panel 100 includes a display portion 100A and a bent portion 100B, with the bent portion 100B located at a corner of the display panel 100. The display panel 100 has a rectangular planar shape when it is not bent; after bending the two bent portions, the display panel 100 can form an irregularly shaped display panel.

[0103] As shown in Figure 13, the driving backplate 110 of the display section 100A of the display panel 100 includes a plurality of first pixel driving circuits 115A, and the driving backplate 110 of the bent section 100B of the display panel 100 includes a plurality of second pixel driving circuits 115B. The plurality of second pixel driving circuits 115B and some of the first pixel driving circuits 115A are connected to the same driving line 112, which includes at least one of gate lines and data lines. Specifically, the plurality of second pixel driving circuits 115B share gate lines with the plurality of first pixel driving circuits 115A that are aligned in the same row when the display panel 100 is not bent, and the plurality of second pixel driving circuits 115B share data lines with the plurality of first pixel driving circuits 115A that are in the same column when the display panel 100 is not bent. In other words, the bent section of the display panel retains the pixel driving circuits and driving lines, thereby ensuring a uniform load on the driving lines of the display section, eliminating the need for additional line compensation structures, and reducing the bezel width while ensuring a uniform driving load. On the other hand, since the bend in the display panel retains the pixel driving circuit and driving lines, the first mask assembly of the display panel can be shared with the first mask of a typical rectangular display panel, thereby reducing R&D and manufacturing costs. Thus, this display device not only achieves irregular designs and reduces R&D and manufacturing costs, but also avoids the problem of needing to add circuit compensation structures for typical irregularly shaped display devices.

[0104] It is worth noting that since the drive backplate 110 of both the display section 100A and the bending section 100B of the display panel 100 forms pixel drive circuits, the drive backplate 110 of the display panel can be a mask assembly that forms the pixel drive circuit of the rectangular display panel, thereby reducing research and development and manufacturing costs.

[0105] As shown in Figure 13, the display unit 100A also includes a plurality of first anodes 130A. The plurality of first anodes 130A are located on the side of the plurality of first pixel driving circuits 115A near the encapsulation layer (not shown), that is, the plurality of first anodes 130A are located above the plurality of first pixel driving circuits 115A. The plurality of first anodes 130A are correspondingly arranged with the plurality of first pixel driving circuits 115A. With this arrangement, the first anode 130A is connected to the output terminal of the corresponding first pixel driving circuit 115A, thereby allowing the first pixel driving circuit 115A to apply a driving current to the corresponding first anode 130A.

[0106] As shown in Figure 13, the bent portion 100B also includes a plurality of second anodes 130B. The plurality of second anodes 130B are located on the side of the plurality of second pixel driving circuits 115B near the encapsulation layer (not shown), that is, the plurality of second anodes 130B are located above the plurality of second pixel driving circuits 115B. The plurality of second anodes 130B are correspondingly arranged with the plurality of second pixel driving circuits 115B. With this arrangement, the second anodes 130B are connected to the output terminals of the corresponding second pixel driving circuits 115B, thereby allowing the second pixel driving circuits 115B to apply driving current to the corresponding second anodes 130B. Therefore, the mask used to form the anodes of the display panel can be shared with the mask used to form the anodes of the rectangular display panel, thereby reducing research and development costs and manufacturing costs.

[0107] Figures 14A-14C are schematic plan views of a vapor deposition mask provided in an embodiment of this disclosure; Figure 15 is a schematic plan view of a display panel in another display device provided in an embodiment of this disclosure when it is not bent. The display panel shown in Figure 15 is based on the display panel shown in Figure 13, with an organic light-emitting layer formed by the vapor deposition masks shown in Figures 14A-14C, specifically as follows: on the display panel shown in Figure 13, a first color organic light-emitting layer is formed by the vapor deposition mask shown in Figure 14A, then a second color organic light-emitting layer is formed by the vapor deposition mask shown in Figure 14B, and finally a third color organic light-emitting layer is formed by the vapor deposition mask shown in Figure 14C. Finally, as shown in Figure 15, the display portion 100A of the display panel 100 also includes a first organic light-emitting layer 140A (including the three colors of organic light-emitting layers mentioned above), located on the side of the plurality of first anodes close to the encapsulation layer 120, that is, located above the plurality of first anodes; no organic light-emitting layer is provided between the plurality of second anodes 130B of the bent portion 100B of the display panel 100 and the encapsulation layer 120, so that the bent portion does not emit light, thereby reducing the risk of light leakage.

[0108] For example, the first color mentioned above is red, the second color is green, and the third color is blue. Of course, the embodiments disclosed herein include, but are not limited to, these.

[0109] Figure 16 is a plan view of a display panel in an embodiment of the present disclosure when it is not bent. As shown in Figure 12, the display panel 100 includes a display portion 100A and a bent portion 100B, with the bent portion 100B located at a corner of the display panel 100. The display panel 100 has a rectangular planar shape when it is not bent; after bending the two bent portions, the display panel 100 can form an irregularly shaped display panel.

[0110] As shown in Figure 16, the driving backplate 110 of the display section 100A of the display panel 100 includes a plurality of first pixel driving circuits 115A, and the driving backplate 110 of the bent section 100B of the display panel 100 includes a plurality of second pixel driving circuits 115B. The plurality of second pixel driving circuits 115B and some of the first pixel driving circuits 115A are connected to the same driving line 112, which includes at least one of gate lines and data lines. Specifically, the plurality of second pixel driving circuits 115B share gate lines with the plurality of first pixel driving circuits 115A that are aligned in the same row when the display panel 100 is not bent, and the plurality of second pixel driving circuits 115B share data lines with the plurality of first pixel driving circuits 115A that are in the same column when the display panel 100 is not bent. In other words, the bent section of the display panel retains the pixel driving circuits and driving lines, thereby ensuring a uniform load on the driving lines of the display section, eliminating the need for additional line compensation structures, and reducing the bezel width while ensuring a uniform driving load. On the other hand, since the bend in the display panel retains the pixel driving circuit and driving lines, the first mask assembly of the display panel can be shared with the first mask of a typical rectangular display panel, thereby reducing R&D and manufacturing costs. Thus, this display device not only achieves irregular designs and reduces R&D and manufacturing costs, but also avoids the problem of needing to add circuit compensation structures for typical irregularly shaped display devices.

[0111] It is worth noting that since the drive backplate 110 of both the display section 100A and the bending section 100B of the display panel 100 forms pixel drive circuits, the drive backplate 110 of the display panel can be a mask assembly that forms the pixel drive circuit of the rectangular display panel, thereby reducing research and development and manufacturing costs.

[0112] As shown in Figure 16, the display unit 100A also includes a plurality of first anodes 130A. The plurality of first anodes 130A are located on the side of the plurality of first pixel driving circuits 115A near the encapsulation layer (not shown), that is, the plurality of first anodes 130A are located above the plurality of first pixel driving circuits 115A. The plurality of first anodes 130A are correspondingly arranged with the plurality of first pixel driving circuits 115A. With this arrangement, the first anode 130A is connected to the output terminal of the corresponding first pixel driving circuit 115A, thereby allowing the first pixel driving circuit 115A to apply a driving current to the corresponding first anode 130A.

[0113] As shown in Figure 16, the bent portion 100B also includes a plurality of second anodes 130B. The plurality of second anodes 130B are located on the side of the plurality of second pixel driving circuits 115B near the encapsulation layer (not shown), that is, the plurality of second anodes 130B are located above the plurality of second pixel driving circuits 115B. The plurality of second anodes 130B are correspondingly arranged with the plurality of second pixel driving circuits 115B. With this arrangement, the second anodes 130B are connected to the output terminals of the corresponding second pixel driving circuits 115B, thereby allowing the second pixel driving circuits 115B to apply a driving current to the corresponding second anodes 130B. Therefore, the mask used to form the anodes of the display panel can be shared with the mask used to form the anodes of the rectangular display panel, thereby reducing research and development costs and manufacturing costs.

[0114] Figures 17A-17C are schematic plan views of a vapor deposition mask provided in an embodiment of this disclosure; Figure 18 is a schematic plan view of a display panel in another display device provided in an embodiment of this disclosure when it is not bent. The display panel shown in Figure 18 is based on the display panel shown in Figure 16, with an organic light-emitting layer formed by the vapor deposition masks shown in Figures 17A-17C, specifically as follows: on the display panel shown in Figure 16, a first color organic light-emitting layer is formed by the vapor deposition mask shown in Figure 17A, then a second color organic light-emitting layer is formed by the vapor deposition mask shown in Figure 17B, and finally a third color organic light-emitting layer is formed by the vapor deposition mask shown in Figure 17C. Finally, as shown in Figure 18, the display portion 100A of the display panel 100 further includes a first organic light-emitting layer 140A (including the three colors of organic light-emitting layers mentioned above), located on the side of the plurality of first anodes near the encapsulation layer 120, that is, above the plurality of first anodes; the bent portion 100B of the display panel 100 further includes a second organic light-emitting layer 140B (including the three colors of organic light-emitting layers mentioned above), located on the side of the plurality of second pixel driving circuits near the encapsulation layer 120, that is, above the plurality of second pixel driving circuits. It should be noted that the first and second organic light-emitting layers mentioned above both include organic light-emitting layers of different colors, and the terms "first" and "second" are only used to distinguish whether the organic light-emitting layer is located in the display portion or the bent portion. In addition, since no anode is formed in the bent portion, the second organic light-emitting layer in the bent portion is located above the plurality of second pixel driving circuits.

[0115] As shown in Figures 17A-17C, the display panel can use the vapor deposition mask assembly of a typical rectangular display panel to fabricate the organic light-emitting layer, thus sharing the vapor deposition mask assembly with a typical rectangular display panel, thereby reducing R&D and manufacturing costs.

[0116] For example, the first color mentioned above is red, the second color is green, and the third color is blue. Of course, the embodiments disclosed herein include, but are not limited to, these.

[0117] In some examples, the aforementioned display device may be an in-vehicle display, navigation system, or other in-vehicle display device. Of course, the embodiments of this disclosure include, but are not limited to, any product or component with display functionality, such as a television, digital camera, mobile phone, watch, tablet computer, laptop computer, or navigation system.

[0118] At least one embodiment of this disclosure also provides a method for manufacturing a display device. Figure 19 is a schematic flowchart of a method for manufacturing a display device according to an embodiment of this disclosure. As shown in Figure 19, the method for manufacturing the display device includes the following steps S101-S102.

[0119] Step S101: Form a display panel, which includes a driving backplane and an encapsulation layer.

[0120] Step S102: A display panel is provided on the first side of the support layer, and the corner of the display panel is bent toward the second side of the support layer, so that the part of the display panel on the first side of the support layer forms a display part, and the part of the display panel on the second side of the support layer forms a bent part.

[0121] In the manufacturing method of the display device provided in this disclosure, the display device can bend a rectangular display panel into an irregular shape, thereby realizing an irregular design. Furthermore, the display panel of this display device can be rectangular when not bent, thus it can share at least a portion of the mask plate with a conventional rectangular display panel, thereby significantly reducing research and development and manufacturing costs. It should be noted that the planar shape of the display panel when not bent is rectangular; after bending the bending portion, the display panel can form an irregularly shaped display panel.

[0122] It should be noted that the bend line between the display section and the bent section of the display panel can also be a curve or a broken line, thereby enabling display sections of more shapes. In other words, the dividing line between the display section and the bent section of the display panel can be a straight line, a curve, or a broken line.

[0123] In some examples, the steps of forming the display panel described above include: forming a plurality of pixel driving circuits in the driving backplane of the display panel using a first mask group. The first mask group is used for patterning multiple film layers of the pixel driving circuits. The plurality of pixel driving circuits include a plurality of first pixel driving circuits located in the display section and a plurality of second pixel driving circuits located in the bending section. The plurality of second pixel driving circuits and some of the first pixel driving circuits are connected to the same driving lines, and the driving lines include at least one of gate lines and data lines. Specifically, the plurality of second pixel driving circuits share gate lines with the plurality of first pixel driving circuits in the same row when the display panel is not bent, and the plurality of second pixel driving circuits share data lines with the plurality of first pixel driving circuits in the same column when the display panel is not bent. That is, the bending section of the display panel retains the pixel driving circuits and driving lines, thereby making the load on the driving lines of the display section uniform, eliminating the need to add a line compensation structure, and reducing the bezel width while ensuring uniform driving load. On the other hand, since the bend in the display panel retains the pixel driving circuit and driving lines, the first mask assembly of the display panel can be shared with the first mask of a typical rectangular display panel, thereby reducing R&D and manufacturing costs. Thus, this display device not only achieves irregular designs and reduces R&D and manufacturing costs, but also avoids the problem of needing to add circuit compensation structures in typical irregularly shaped display devices. It should be noted that the aforementioned first mask assembly includes at least one mask for patterning multiple film layers of the pixel driving circuit. These film layers may include active layers, gate layers, source / drain electrode layers, and insulating layers and planarization layers including via structures.

[0124] In some examples, the steps of forming the display panel described above further include: forming a plurality of first anodes on the side of the plurality of first pixel driving circuits of the display section near the encapsulation layer using a second mask group, wherein the plurality of first anodes are correspondingly disposed with respect to the plurality of first pixel driving circuits. The second mask group described above includes at least one mask for forming the anodes. It should be noted that the second mask group described above may include only one mask.

[0125] In some examples, the portion of the second mask group corresponding to the bend does not have a pattern, so that the multiple second pixel driving circuits of the bend do not have an anode on the side near the encapsulation layer, thereby preventing the bend from emitting light and reducing the risk of light leakage.

[0126] In some examples, the above-described display panel forming process further includes: forming multiple anodes on the side of the multiple pixel driving circuits near the encapsulation layer using a third mask group. The multiple anodes include multiple first anodes and multiple second anodes. The multiple first anodes are located on the side of the multiple first pixel driving circuits near the encapsulation layer and are correspondingly arranged with the multiple first pixel driving circuits. The multiple second anodes are located on the side of the multiple second pixel driving circuits near the encapsulation layer and are correspondingly arranged with the multiple second pixel driving circuits. The aforementioned third mask group includes at least one mask for forming the anodes. It should be noted that the aforementioned third mask group may include only one mask. Therefore, the second mask group used to form the anodes of the display panel can be shared with the second mask group used to form the anodes of the rectangular display panel, thereby reducing research and development costs and manufacturing costs.

[0127] In some examples, the steps of forming the display panel described above further include: forming a first organic light-emitting layer on the side of the plurality of first anodes near the encapsulation layer using a first vapor deposition mask assembly. The portion of the first vapor deposition mask assembly corresponding to the bend does not have a pattern, so that no organic light-emitting layer is disposed between the plurality of second anodes in the bend and the encapsulation layer. Therefore, since no organic light-emitting layer is disposed in the bend, the bend does not emit light, thereby reducing the risk of light leakage. It should be noted that the first vapor deposition mask described above may include the vapor deposition mask shown in Figures 11A-11C.

[0128] In some examples, the above-described display panel formation further includes: forming an organic light-emitting layer on the side of multiple anodes near the encapsulation layer using a second evaporation mask assembly. The organic light-emitting layer includes a first organic light-emitting layer and a second organic light-emitting layer. The first organic light-emitting layer is located on the side of multiple first anodes near the encapsulation layer, and the second organic light-emitting layer is located on the side of multiple second anodes near the encapsulation layer. Therefore, the method for manufacturing this display panel can use a typical rectangular display panel evaporation mask assembly to fabricate the organic light-emitting layer, thus allowing the evaporation mask assembly to be shared with typical rectangular display panels, thereby reducing R&D and manufacturing costs. It should be noted that the second evaporation mask assembly described above may include the evaporation mask assemblies shown in Figures 11A-11C.

[0129] The following points need to be explained:

[0130] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0131] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure may be combined with each other.

[0132] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

1. A display device, comprising: a support layer; and a display panel comprising a driving back plate and an encapsulation layer; wherein the display panel comprises a display part and a bending part, the bending part is located at a corner of the display panel, the support layer is located at a side of the driving back plate of the display part away from the encapsulation layer, and the bending part is bent to a side of the support layer away from the display part. The display panel has a planar shape of a rectangle when not bent.

2. The display device according to claim 1, wherein The driving back plate of the display part comprises a plurality of first pixel driving circuits, and the driving back plate of the bending part comprises a plurality of second pixel driving circuits, 3. The display device according to claim 1, wherein the plurality of second pixel driving circuits are connected to the same driving lines as part of the first pixel driving circuits, and the driving lines comprise at least one of gate lines and data lines. The display part further comprises a plurality of first anodes located at a side of the plurality of first pixel driving circuits close to the encapsulation layer and arranged correspondingly to the plurality of first pixel driving circuits.

4. The display device according to claim 3, wherein The plurality of second pixel driving circuits of the bending part are not provided with anodes at a side close to the encapsulation layer.

5. The display device of claim 4, wherein, The bending part further comprises a plurality of second anodes located at a side of the plurality of second pixel driving circuits close to the encapsulation layer and arranged correspondingly to the plurality of second pixel driving circuits, 6. The display device according to claim 4, wherein The display part further comprises a first organic light-emitting layer located at a side of the plurality of first anodes close to the encapsulation layer, and the plurality of second anodes of the bending part are not provided with the organic light-emitting layer between the plurality of second anodes and the encapsulation layer. The bending part further comprises a plurality of second anodes located at a side of the plurality of second pixel driving circuits close to the encapsulation layer and arranged correspondingly to the plurality of second pixel driving circuits, 7. The display device according to claim 4, wherein The display part further comprises a first organic light-emitting layer located at a side of the plurality of first anodes close to the encapsulation layer, and the bending part further comprises a second organic light-emitting layer located at a side of the plurality of second anodes close to the encapsulation layer. The support layer comprises:

8. The display device according to any one of claims 1 to 7, wherein, a main part located at a side of the driving back plate of the display part away from the encapsulation layer; a thickened part located at a corner of the main part and between the bending part and the display part, wherein the thickened part is arranged in contact with at least part of the bending part. An edge of the thickened part close to the bending part has a chamfer.

9. The display device of claim 8, wherein, 10.The display device of claim 8, further comprising: a filling material located between the bending part and the thickened part. The filling material comprises a heat-conducting material.

11. The display device of claim 10, wherein, 12.The display device of claim 8, further comprising: a sealing structure located at a side of the bending part away from the support layer to fix and seal the bending part at a side of the support layer away from the display part. The sealing structure comprises a heat-conducting material.

13. The display device of claim 12, wherein, The sealing structure comprises a light-blocking material.

14. The display device of claim 12, wherein, The support layer comprises a heat-conducting material to dissipate heat.

15. The display device of claim 8, wherein, The display panel comprises one display part and two bending parts located at two corners of the display panel.

16. The display device of any one of claims 1-15, wherein, 17.The display device of any one of claims 1-16, further comprising: a light control film located at a side of the display part away from the support layer. ​ 18. The display device of any one of claims 1-17, further comprising: an anti-glare film located on a side of the display portion distal to the support layer; a cover layer located on a side of the anti-glare film distal to the support layer.

19. The display device of any one of claims 1-18, further comprising: a touch layer located on a side of the display portion distal to the support layer.

20. A method of manufacturing a display device, comprising: forming a display panel, the display panel comprising a drive backplane and an encapsulation layer; disposing the display panel on a first side of a support layer and folding corners of the display panel toward a second side of the support layer such that a portion of the display panel on the first side of the support layer forms a display portion and a portion of the display panel on the second side of the support layer forms a folding portion.

21. A method of fabricating a display device according to claim 20, wherein, the display panel, when unfolded, has a planar shape that is rectangular.

22. A method of fabricating a display device according to claim 20, wherein, forming the display panel comprises: forming a plurality of pixel drive circuits in the drive backplane of the display panel using a first mask set, wherein the first mask set is used to pattern a plurality of film layers of the pixel drive circuits, the plurality of pixel drive circuits comprises a plurality of first pixel drive circuits located in the display portion and a plurality of second pixel drive circuits located in the folding portion, the plurality of second pixel drive circuits are connected to the same drive lines as a portion of the first pixel drive circuits, the drive lines comprising at least one of gate lines and data lines.

23. A method of fabricating a display device according to claim 22, wherein, forming the display panel further comprises: forming a plurality of first anodes proximate to the encapsulation layer in the plurality of first pixel drive circuits of the display portion using a second mask set, the plurality of first anodes being disposed corresponding to the plurality of first pixel drive circuits.

24. A method of fabricating a display device according to claim 23, wherein, the second mask set does not have a pattern corresponding to the folding portion such that a side of the plurality of second pixel drive circuits in the folding portion proximate to the encapsulation layer is not disposed with an anode.

25. A method of fabricating a display device according to claim 22, wherein, forming the display panel further comprises: forming a plurality of anodes proximate to the encapsulation layer in the plurality of pixel drive circuits using a third mask set, the plurality of anodes comprises a plurality of first anodes and a plurality of second anodes, the plurality of first anodes being disposed corresponding to the plurality of first pixel drive circuits on a side of the plurality of first pixel drive circuits proximate to the encapsulation layer, and the plurality of second anodes being disposed corresponding to the plurality of second pixel drive circuits on a side of the plurality of second pixel drive circuits proximate to the encapsulation layer.

26. A method of fabricating a display device according to claim 25, wherein, forming the display panel further comprises: forming a first organic light emitting layer proximate to the encapsulation layer in the plurality of first anodes using a first evaporation mask set, the first evaporation mask set does not have a pattern corresponding to the folding portion such that the plurality of second anodes in the folding portion is not disposed with the organic light emitting layer between the plurality of second anodes and the encapsulation layer.

27. A method of fabricating a display device according to claim 25, wherein, forming the display panel further comprises: forming an organic light emitting layer proximate to the encapsulation layer in the plurality of anodes using a second evaporation mask set, The organic light-emitting layer comprises a first organic light-emitting layer and a second organic light-emitting layer, the first organic light-emitting layer is located on the side of the plurality of first anodes close to the encapsulation layer, and the second organic light-emitting layer is located on the side of the plurality of second anodes close to the encapsulation layer.

Images