Display panel, display device, vehicle lamp and vehicle

Abstract

The embodiment of the invention provides a display panel, a display device, a vehicle lamp and a vehicle, relates to the technical field of display, and aims to meet the display requirement of signal interaction with multiple complex scenes. The display panel comprises a driving backboard, a plurality of light-emitting devices, a color film and a shading pattern. The color film comprises a plurality of pixel units, and at least one pixel unit comprises a plurality of filtering parts transmitting different colors. Wherein the multiple pixel units are arranged in multiple rows and multiple columns in the first direction and the second direction, and in every two adjacent pixel units in the first direction and / or the second direction, the adjacent light filtering parts transmit light of the same color. The shading patterns are arranged on the sides, away from the driving backboard, of the light-emitting devices and located among the light-emitting devices. The shading pattern comprises a first shading pattern and a second shading pattern, the first shading pattern is located between two adjacent pixel units, and the second shading pattern is located between two adjacent filtering parts in one pixel unit. The display panel is used for the display device.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to a display panel, display device, vehicle headlights, and vehicles thereof. Background Technology

[0002] With the development of the four new trends in automobiles—electrification, connectivity, intelligence, and sharing—vehicles are acquiring increasingly richer information about their surrounding environment, leading to the development of more interactive signals. Among these, headlights, as a key component of automobiles, are no longer limited to illumination but are evolving towards intelligent interaction. For example, car headlights project images such as text, symbols, and logos as interactive signals to meet diverse user needs. However, in current technologies, car headlights can only emit monochromatic light, limiting interactive information to a single color and failing to meet the display requirements of signal interaction in complex scenarios. Summary of the Invention

[0003] The purpose of the embodiments of this disclosure is to provide a display panel, display device, vehicle lights and vehicles thereof, so as to achieve color display, improve the diversity of interactive signals, and meet the display needs of signal interaction in more complex scenarios.

[0004] To achieve the above objectives, the embodiments of this disclosure provide the following technical solutions:

[0005] On one hand, a display panel is provided. The display panel includes a driving backplate, multiple light-emitting devices, a color filter, and a light-shielding pattern.

[0006] A plurality of light-emitting devices are disposed on one side of the driving backplate. A color filter is disposed on the side of the light-emitting devices away from the driving backplate. The color filter includes a plurality of pixel units, at least one pixel unit including a plurality of filters that transmit different colors. In a projected image onto the driving backplate, one light-emitting device is located within one of the filters. The plurality of pixel units are arranged in multiple rows and columns along a first direction and a second direction, and in two adjacent pixel units along the first direction and / or the second direction, adjacent filters transmit light of the same color. The first direction and the second direction intersect.

[0007] The light-shielding pattern is disposed on the side of the light-emitting device away from the driving backplate and is located between the plurality of light-emitting devices. The light-shielding pattern includes a first light-shielding pattern and a second light-shielding pattern. In the orthographic projection onto the driving backplate, the first light-shielding pattern is located between two adjacent pixel units, and the second light-shielding pattern is located between two adjacent filter portions in a pixel unit.

[0008] In the aforementioned display panel, multiple filters in at least one pixel unit transmit different colors to form a minimum color display unit, thereby enabling the display panel to achieve color display, enhancing the diversity of interactive signals projected by vehicle lights using this display panel, and meeting the display needs of signal interaction in more complex scenarios.

[0009] Furthermore, since adjacent light-emitting devices belonging to different pixel units transmit light of the same color through their corresponding filter sections, there is no risk of color cross-contamination between filter sections of the same color. This helps to reduce color cross-contamination between pixel units and improves the clarity of the displayed image. Moreover, the lower risk of color cross-contamination between adjacent pixel units allows for a lower design precision for the first light-blocking pattern, enabling a higher density of pixel units in the display panel, thereby increasing pixel density and improving the resolution of the display panel.

[0010] In some embodiments, the first light-shielding pattern is disposed on the side of the color filter near the drive back plate, and the filter portions that are adjacent to each other and transmit the same color of light in the first direction and / or the second direction are integrally disposed.

[0011] In some embodiments, the display panel further includes a first encapsulation layer that covers the light-emitting device. The first light-shielding pattern is disposed on the surface of the first encapsulation layer facing the color filter.

[0012] In some embodiments, the display panel further includes a second substrate and a pixel defining layer. The second substrate is disposed on the side of the color filter away from the driving backplane. The second light-shielding pattern is disposed on the surface of the second substrate near the driving backplane. The pixel defining layer is disposed between the first encapsulation layer and the second substrate. The pixel defining layer has a plurality of pixel openings, one of which exposes a plurality of integrally disposed light-filtering portions. Furthermore, the surface of the pixel defining layer facing the second substrate has a first positioning groove, and the second light-shielding pattern is located within the first positioning groove.

[0013] In some embodiments, the plurality of light-emitting devices emit light of a single color, and the display panel further includes a first phosphor layer and a first bonding layer. The first phosphor layer is disposed on the side of the first encapsulation layer away from the driving backplane and covers the first light-shielding pattern and the pixel defining layer. The first bonding layer is disposed between the phosphor layer and the color filter.

[0014] In some embodiments, the display panel further includes a third substrate disposed on the side of the color filter near the driving backplate. A second light-shielding pattern is disposed on the surface of the third substrate away from the driving backplate, and a second positioning groove is provided on the surface of the third substrate facing the driving backplate, with the first light-shielding pattern located within the second positioning groove.

[0015] In some embodiments, the surface of the third substrate facing the drive backplate has an undulating topography.

[0016] In some embodiments, the plurality of light-emitting devices emit light of a single color, and the display panel further includes a second phosphor layer and a second bonding layer. The second phosphor layer is disposed on the side of the first encapsulation layer away from the driving backplane and covers the first light-shielding pattern. The second bonding layer is disposed between the second phosphor layer and the third substrate.

[0017] In some embodiments, the plurality of light-emitting devices emit light of a single color, and the display panel further includes a third phosphor layer and a second encapsulation layer. The third phosphor layer is disposed on the side of the first encapsulation layer away from the driving backplane and covers the first light-shielding pattern. The second encapsulation layer is disposed between the third phosphor layer and the color filter.

[0018] In some embodiments, the display panel further includes a third encapsulation layer disposed on the side of the color filter away from the driving backplate.

[0019] In some embodiments, the color filter includes a plurality of filter units, the plurality of filter units including a red filter unit, a green filter unit and a blue filter unit, and each filter unit includes four filter portions, the four filter portions being arranged in two rows and two columns along the first direction and the second direction.

[0020] The plurality of filter units are arranged in multiple rows and columns along the first direction and the second direction. Two adjacent rows of filter units are respectively a first filter unit row and a second filter unit row. The first filter unit row includes red filter units and green filter units arranged alternately along the row direction. The second filter unit row includes blue filter units and green filter units arranged alternately along the row direction. The red filter units and the blue filter units are staggered in the column direction.

[0021] In some embodiments, the display panel further includes an auxiliary electrode. The light-emitting device includes a light-emitting body and a first connecting electrode and a second connecting electrode disposed on opposite sides of the light-emitting body. The first connecting electrode is located on the side of the light-emitting body near the driving back plate. The second connecting electrodes of a plurality of light-emitting devices are integrally disposed, and a groove is formed between the second connecting electrodes of adjacent light-emitting devices. The auxiliary electrode is disposed in the groove and connected to the second connecting electrode.

[0022] On the other hand, a display device is provided. The display device includes a display panel as described in any of the above embodiments.

[0023] Furthermore, a vehicle light is provided. The vehicle light includes the display device described in the above embodiments.

[0024] On the other hand, a vehicle is provided. The vehicle includes the headlights described in the above embodiments.

[0025] The aforementioned display device, headlights, and vehicle have the same structure and beneficial technical effects as the display panel provided in some of the above embodiments, and will not be described again here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0027] Figure 1 This is a structural diagram of a vehicle according to some embodiments;

[0028] Figure 2 This is a structural diagram of a display device according to some embodiments;

[0029] Figure 3 This is a structural diagram of a vehicle lamp according to some embodiments;

[0030] Figure 4 This is a cross-sectional view of a display panel according to some embodiments;

[0031] Figure 5 This is a top view of a display panel according to some embodiments;

[0032] Figure 6 This is a cross-sectional view of another display panel according to some embodiments;

[0033] Figure 7 This is a cross-sectional view of yet another display panel according to some embodiments;

[0034] Figures 8 to 14 This is a process step diagram of a method for fabricating a light-emitting substrate of a display panel according to some embodiments;

[0035] Figures 15-17 This is a process step diagram of a method for manufacturing a display panel according to some embodiments;

[0036] Figure 18 and Figure 19 This is a process step diagram of another method for manufacturing a display panel according to some embodiments;

[0037] Figures 20-22 This is a process step diagram of another method for manufacturing a display panel according to some embodiments. Detailed Implementation

[0038] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0039] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0040] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0041] In describing some embodiments, the term "connection" and its derivative expressions may be used. The term "connection" should be interpreted broadly; for example, "connection" can be a mechanical connection or an electrical connection; it can be a fixed connection or a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art will understand the specific meaning of the above terms herein based on the specific circumstances.

[0042] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0043] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0044] As used herein, “vertical” includes the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “vertical” includes absolute verticality and approximate verticality, where an acceptable range of deviation for approximate verticality could, for example, be within 5°.

[0045] In this disclosure, terms such as “down,” “below,” “above,” and “up” are used to explain the relationships between components shown in the accompanying drawings. The terms may be relative concepts and described based on the directions shown in the drawings, or based on the sequence of process steps, but are not limited thereto.

[0046] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0047] The term "relative" means that the first element can be directly or indirectly relative to the second element. In the case where the third element is between the first and second elements, although they are still relative to each other, the first and second elements can be understood as being indirectly relative to each other.

[0048] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and the area of ​​regions are enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched areas shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the areas of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0049] like Figure 1 As shown, this application embodiment provides a vehicle 1000, which can be any power-driven vehicle such as a fuel vehicle or a new energy vehicle.

[0050] The vehicle 1000 includes a headlight 100, which can be used for illumination and to project images such as text, symbols and logos as interactive signals to meet the diverse needs of users. Figure 1 The example shown uses an arrow as an interaction signal.

[0051] like Figure 1 and Figure 2 As shown, some embodiments of this disclosure also provide a display device 10, which can be any device that displays images, whether moving (e.g., video) or fixed (e.g., still images) and whether it is text or images.

[0052] For example, see Figure 1 and Figure 2 The display device 10 can be any product or component with display function, such as a television, computer, laptop, tablet, in-vehicle display, in-flight display, projection equipment, mobile phone, personal digital assistant (PDA), navigator, wearable device, video wall, sign, electronic billboard, and shopping mall display.

[0053] For example, the display device 10 can be Figure 1 The vehicle headlight 100 is shown in the image. The following description uses display device 10 as an example. Figure 1 The following is an illustrative description of some embodiments of the present disclosure, using the vehicle headlight 100 as an example; however, the implementation of the present disclosure is not limited thereto.

[0054] In some embodiments, see Figure 3The display device 10 includes a display panel 20, which may include a light-emitting side and a back side disposed opposite to each other. The light-emitting side is the side of the display panel 20 used to emit light, and the back side is the other side of the display panel 20 opposite to the light-emitting side.

[0055] In some embodiments, such as Figure 3 As shown, the display device 10 also includes a housing 30, which may include, for example, an upper housing 310 and a lower housing 320. The upper housing 310 and the lower housing 320 are connected to form a mounting cavity, and the display panel 20 can be disposed within the mounting cavity. The upper housing 310 is disposed on the light-emitting side of the display panel 20, and the upper housing 310 is transparent. For example, the material of the upper housing 310 may include transparent plastic or glass.

[0056] In some embodiments, see Figure 4 The display panel 20 includes a driving backplate 11, a plurality of light-emitting devices 40, a color filter 50, and a light-shielding pattern 60. The light-emitting devices 40 are disposed on one side of the driving backplate 11 and connected to the driving backplate 11 to receive a first voltage signal and a second voltage signal, thereby driving the light-emitting devices 40 to emit light. The color filter 50 is disposed on the side of the light-emitting devices 40 away from the driving backplate 11, and the light-shielding pattern 60 is disposed on the side of the light-emitting devices 40 away from the driving backplate 11 and is located between the plurality of light-emitting devices 40.

[0057] The aforementioned driving backplane 11 may include a first substrate and driving circuitry and pads disposed on the first substrate. The light-emitting device 40 is connected to the driving circuitry via the pads. The material of the first substrate may include at least one of glass, quartz, sapphire, ceramic, polymethyl methacrylate (PMMA), monocrystalline silicon, polycrystalline silicon, silicon carbide, gallium arsenide, aluminum nitride, and zinc oxide.

[0058] The orthographic projection of the light-emitting device 40 onto the driving backplate 11 can be any of a circle, an ellipse, or a polygon. Furthermore, the light-emitting device 40 may include a micro light-emitting diode (MicroLED) and / or a sub-millimeter light-emitting diode (Mini LED).

[0059] The radial length of the orthographic projection of the Micro LED on the driving backplate 11 is, for example, less than or equal to 50 μm, such as 10 μm to 50 μm. The radial length of the orthographic projection of the Mini LED on the driving backplate 11 can be, for example, 50 μm to 150 μm, such as 80 μm to 120 μm.

[0060] The aforementioned radial length refers to the length of the line segment connecting two points on the boundary of the orthographic projection of the light-emitting device 40 onto the driving backplate 11, with the connecting line segment passing through the geometric center of the orthographic projection of the light-emitting device 40 onto the driving backplate 11. For example, when the orthographic projection of the light-emitting device 40 onto the driving backplate 11 is a quadrilateral, the radial length includes the side length and the length of the diagonal. For example, when the orthographic projection of the light-emitting device 40 onto the driving backplate 11 is a circle, the radial length is the diameter.

[0061] In some embodiments, see Figure 4 and Figure 5 Multiple light-emitting devices 40 are arranged in multiple rows and columns. Each row includes at least two light-emitting devices 40 arranged along a first direction X, and each column includes at least two light-emitting devices 40 arranged along a second direction Y. The first direction X and the second direction Y intersect, for example, the first direction X and the second direction Y are perpendicular.

[0062] In the first direction X, the spacing between two adjacent light-emitting devices 40 can be, for example, 10 μm to 12 μm. In the second direction Y, the spacing between two adjacent light-emitting devices 40 can be, for example, 10 μm to 12 μm.

[0063] In some embodiments, such as Figure 4 and Figure 5 As shown, the color filter 50 includes multiple pixel units 500. A pixel unit 500 can be understood as the smallest unit that constitutes the display image in the display panel 20, that is, a pixel unit 500 can be understood as the smallest display unit.

[0064] The pixel unit 500 includes multiple filter sections 510. In the orthographic projection onto the drive backplate 11, a light-emitting device 40 is located within one filter section 510. Furthermore, the multiple filter sections 510 in the pixel unit 500 transmit different colors to form a minimum color display unit, thereby enabling the display panel 20 to achieve color display. This enhances the diversity of interactive signals projected by the vehicle headlights 100 using the display panel 20, meeting the display needs of signal interaction in more complex scenarios.

[0065] Furthermore, the multiple pixel units 500 can be arranged in multiple rows and columns along the first direction X and the second direction Y, with each row including at least two pixel units 500 arranged along the first direction X and each column including at least two pixel units 500 arranged along the second direction Y.

[0066] For example, such as Figure 5As shown, the plurality of filter units 510 include a plurality of first filter units 511, a plurality of second filter units 512, and a plurality of third filter units 513, wherein the first filter units 511, second filter units 512, and third filter units 513 are configured to transmit light of different colors. For example, the first filter unit 511 is configured to transmit red light, the second filter unit 512 is configured to transmit green light, and the third filter unit 513 is configured to transmit blue light.

[0067] At this time, the pixel unit 500 may include, for example, two rows and two columns of filter sections 510, that is, one pixel unit 500 includes four filter sections 510, the four filter sections 510 being a first filter section 511, two second filter sections 512 and a third filter section 513, and the two second filter sections 512 are arranged diagonally opposite each other.

[0068] Based on this, in two adjacent pixel units 500 in the first direction X and / or the second direction Y, adjacent filter sections 510 transmit light of the same color. For example, in two adjacent pixel units 500 in the first direction X, adjacent filter sections 510 transmit light of the same color, and in two adjacent pixel units 500 in the second direction Y, adjacent filter sections 510 transmit light of the same color.

[0069] In this case, the light transmitted by the filter sections 510 corresponding to adjacent light-emitting devices 40 belonging to different pixel units 500 is of the same color. There is no risk of color cross-contamination between filter sections 510 with the same color, which helps to improve the color cross-contamination between the pixel units 500 and improve the clarity of the displayed image.

[0070] In some embodiments, such as Figure 4 and Figure 5 As shown, the light-blocking pattern 60 includes a first light-blocking pattern 610 and a second light-blocking pattern 620.

[0071] In the orthographic projection onto the drive backplate 11, the first light-shielding pattern 610 is located between two adjacent pixel units 500 to separate light emitted from different pixel units 500, absorb stray light between adjacent pixel units 500, and reduce the mutual interference between the display units formed by the pixel units 500. Furthermore, the second light-shielding pattern 620 is located between two adjacent filter portions 510 in a pixel unit 500 to improve color mixing between filter portions 510 that transmit different colors in the pixel unit 500.

[0072] At this time, since the adjacent filter portions 510 in two adjacent pixel units 500 transmit light of the same color, the risk of color mixing between the colors displayed by adjacent pixel units 500 is small. This helps to reduce the design precision of the first light-blocking pattern 610, and the density of the pixel units 500 included in the display panel 20 can be designed to be higher, thereby increasing the pixel density and improving the resolution of the display panel 20.

[0073] In some embodiments, see Figure 5 The color filter 50 includes multiple filter units 520, including a red filter unit 521, a green filter unit 522 and a blue filter unit 523, and each filter unit 520 includes four filter sections 510. The four filter sections 510 transmit light of the same color, and the four filter sections 510 are arranged in two rows and two columns along the first direction X and the second direction Y.

[0074] The multiple filter units 520 are arranged in multiple rows and columns along the first direction X and the second direction Y. Two adjacent rows of filter units 520 are respectively the first filter unit row 520A and the second filter unit row 520B. The first filter unit row 520A includes red filter units 521 and green filter units 522 arranged alternately along the row direction (first direction X). The second filter unit row 520B includes blue filter units 523 and green filter units 522 arranged alternately along the row direction. The red filter units 521 and blue filter units 523 are staggered in the column direction (second direction Y).

[0075] At this time, the pixel unit 500 includes two rows and two columns of filter sections 510. Among the four pixel units 500 in the two rows and two columns, the four filter sections 510 that emit light of the same color in close proximity form a filter unit 520. With this arrangement, the risk of color mixing between adjacent pixel units 500 is reduced. This helps to reduce the design precision of the first light-blocking pattern 610, and the density of the pixel units 500 included in the display panel 20 can be designed to be higher, thereby increasing the pixel density and improving the resolution of the display panel 20.

[0076] In some embodiments, see Figure 4 and Figure 5 The first light-shielding pattern 610 is disposed on the side of the color filter 50 near the drive back plate 11, and in the first direction X and / or the second direction Y, adjacent filter portions 510 that transmit the same color of light are integrally disposed. That is, a plurality of filter portions 510 between the second light-shielding patterns 620 are integrally disposed.

[0077] For example, such as Figure 5As shown, in two adjacent pixel units 500 in the first direction X, adjacent filter sections 510 that transmit the same color of light are integrally disposed, and in two adjacent pixel units 500 in the second direction Y, adjacent filter sections 510 that transmit the same color of light are integrally disposed. That is, multiple filter sections 510 in one filter unit 520 are integrally disposed.

[0078] At this point, in the four pixel units 500 arranged in two rows and two columns, the four light filters 510 that emit light of the same color and are close to each other can be integrally formed. This arrangement, with multiple light filters 510 integrated, eliminates the need for patterning, which helps reduce the precision of the color filter 50 manufacturing process, lowers manufacturing costs, increases pixel density, and improves the resolution of the display panel 20.

[0079] In some embodiments, see Figure 4 The display panel 20 also includes a first encapsulation layer 710, which covers the light-emitting device 40 to protect it and reduce the risk of water and oxygen corrosion. Furthermore, a first light-shielding pattern 610 is disposed on the surface of the first encapsulation layer 710 facing the color filter 50.

[0080] At this time, the first light-shielding pattern 610 can be directly formed on the surface of the first packaging layer 710 away from the driving backplate 11 through semiconductor process under the support of the driving backplate 11. The patterning process (e.g., etching) of the first light-shielding pattern 610 will not damage other functional film layers (e.g., color filter 50).

[0081] It should be understood that the color filter 50 can be formed on a substrate alone and connected to the first packaging layer 710 by a bonding process; or, the color filter 50 can be formed on the side of the first packaging layer 710 away from the driving backplate 11 by a semiconductor process.

[0082] In some embodiments, such as Figure 4 As shown, the display panel 20 also includes a second substrate 12, which is disposed on the side of the color filter 50 away from the driving backplate 11, and a second light-shielding pattern 620 is disposed on the surface of the second substrate 12 near the driving backplate 11.

[0083] At this time, the color filter 50 and the second light-shielding pattern 620 can be directly formed on the surface of the second substrate 12 through semiconductor processes under the support of the second substrate 12. The patterning process (e.g., etching) of the second light-shielding pattern 620 will not damage the color filter 50.

[0084] The material of the second substrate 12 mentioned above includes at least one of glass, polyimide, polycarbonate, polyamide, triacetyl cellulose, polymethyl methacrylate and polyethylene terephthalate.

[0085] The driving backplate 11 and the film layer formed on the driving backplate 11 (such as the light-emitting device 40 and the first encapsulation layer 710) are array substrates 210, and the second substrate 12 and the film layer formed on the second substrate 12 (such as the light-emitting device 40 and the first encapsulation layer 710) are color filter substrates 220. The array substrate 210 and the color filter substrate 220 can be connected by bonding.

[0086] For example, such as Figure 4 As shown, the display panel 20 also includes a first bonding layer 230, which is disposed between the array substrate 210 and the color filter substrate 220 to connect the array substrate 210 and the color filter substrate 220.

[0087] Based on this, such as Figure 4 As shown, the array substrate 210 may further include a pixel defining layer 80, which is disposed between the first encapsulation layer 710 and the second substrate 12. The pixel defining layer 80 has a plurality of pixel openings 810, each pixel opening 810 exposing a plurality of integrally disposed filter portions 510, resulting in a larger aperture ratio for the pixel defining layer 80. Furthermore, the surface of the pixel defining layer 80 facing the second substrate 12 has a first positioning groove 820, and a second light-shielding pattern 620 is located within the first positioning groove 820. In this case, the alignment accuracy of the array substrate 210 and the color filter substrate 220 can be improved by aligning the second light-shielding pattern 620 with the first positioning groove 820.

[0088] At this time, as Figure 4 As shown, the width of the pixel defining layer 80 between two adjacent pixel openings 810 is greater than the spacing between the light-emitting devices 40. For example, the width of the pixel defining layer 80 between two adjacent pixel openings 810 is 12μm to 14μm. Furthermore, the thickness of the pixel defining layer 80 can be 8μm to 9μm, and the depth of the first positioning groove 820 can be 4μm to 5μm.

[0089] The height of the first light-shielding pattern 610 can be 3μm to 4μm, and the width of the first light-shielding pattern 610 can be 4μm to 7μm.

[0090] The height of the second light-shielding pattern 620 can be 4μm to 5μm, and the width of the second light-shielding pattern 620 can be 5μm to 7μm.

[0091] In some examples, such as Figure 4 As shown, the light-emitting device 40 emits light of a single color. At this time, the display panel 20 also includes a first phosphor layer 910, which is disposed on the side of the first encapsulation layer 710 away from the driving backplate 11 and covers the first light-shielding pattern 610 and the pixel defining layer 80.

[0092] In this design, the light-emitting device 40 emits a single color of light. When this light shines on the first phosphor layer 910, the first phosphor layer 910 emits white light. This white light is then filtered by the color filter 50 to achieve a color display. For example, if the light-emitting device 40 emits blue light, and this blue light shines on the first phosphor layer 910, the first phosphor layer 910 can emit white light. This white light is then filtered by the color filter 50 to achieve a color display. Here, the material of the first phosphor layer 910 includes phosphor.

[0093] Furthermore, the first phosphor layer 910 can be directly formed on the surfaces of the first packaging layer 710, the pixel defining layer 80, and the first light-shielding pattern 610 away from the driving backplate 11 through semiconductor processes, with the driving backplate 11 providing support. At this time, the first bonding layer 230 is disposed between the first phosphor layer 910 and the color filter 50.

[0094] In some embodiments, such as Figure 6 As shown, the display panel 20 also includes a third substrate 13, which is disposed on the side of the color filter 50 near the driving back plate 11, and the second light-shielding pattern 620 is disposed on the surface of the third substrate 13 away from the driving back plate 11.

[0095] At this time, the color filter 50 and the second light-shielding pattern 620 can be directly formed on the surface of the third substrate 13 through semiconductor process under the support of the third substrate 13. The patterning process (e.g., etching) of the second light-shielding pattern 620 will not damage the color filter 50.

[0096] The material of the third substrate 13 mentioned above includes at least one of glass, polyimide, polycarbonate, polyamide, triacetyl cellulose, polymethyl methacrylate and polyethylene terephthalate.

[0097] Here, as Figure 6 As shown, the second light-shielding pattern 620 can be formed solely from a light-shielding material, which may include, for example, a black pigment (such as carbon black) and a matrix material such as an organic resin. Alternatively, see [link to relevant documentation]. Figure 7 The second light-shielding pattern 620 is formed by overlapping two adjacent filter parts 510 with different light-emitting colors.

[0098] In addition, see Figure 6 The display panel 20 may also include a third encapsulation layer 730, which is disposed on the side of the color filter 50 away from the driving backplate 11 to protect the color filter 50 and reduce the risk of the color filter 50 being corroded, contaminated or damaged by water, oxygen, dust and other substances.

[0099] The driving backplate 11 and the film layer formed on the driving backplate 11 (such as the light-emitting device 40 and the first encapsulation layer 710) are array substrates 210, and the third substrate 13 and the film layer formed on the third substrate 13 (such as the light-emitting device 40 and the first encapsulation layer 710) are color filter substrates 220. The array substrate 210 and the color filter substrate 220 can be connected by bonding.

[0100] For example, such as Figure 6 As shown, the display panel 20 also includes a second bonding layer 240, which is disposed between the array substrate 210 and the color filter substrate 220 to connect the array substrate 210 and the color filter substrate 220.

[0101] Based on this, such as Figure 6 As shown, the surface of the third substrate 13 facing the drive backplate 11 is provided with a second positioning groove 130, and the first light-shielding pattern 610 is located in the second positioning groove 130. In this case, the alignment accuracy of the array substrate 210 and the color filter substrate 220 can be improved by aligning the first light-shielding pattern 610 with the second positioning groove 130.

[0102] At this time, as Figure 6 As shown, the depth of the second positioning groove 130 can be 4μm to 5μm. The height of the first light-shielding pattern 610 can be 10μm to 11μm, and the width of the first light-shielding pattern 610 can be 7μm to 8μm. The second light-shielding pattern 620 is formed solely of light-shielding material, and the height of the second light-shielding pattern 620 can be 2μm to 3μm, and the width of the second light-shielding pattern 620 can be 4μm to 5μm.

[0103] In some examples, see Figure 6 The surface of the third substrate 13 facing the driving backplate 11 has an undulating topography to reduce total internal reflection of light emitted from the light-emitting device 40 on the surface of the third substrate 13 facing the driving backplate 11, thereby improving light extraction efficiency. For example, the surface of the third substrate 13 facing the driving backplate 11 may have multiple pits, and the planes between the pits form an undulating topography. This undulating topography on the surface of the third substrate 13 facing the driving backplate 11 can be formed using a dry etching method.

[0104] In some examples, see Figure 6 The light-emitting device 40 emits light of a single color. At this time, the display panel 20 also includes a second phosphor layer 920, which is disposed on the side of the first encapsulation layer 710 away from the driving backplate 11 and covers the first light-shielding pattern 610.

[0105] In this design, the light-emitting device 40 emits a single color of light, which, when irradiated by the second phosphor layer 920, causes the second phosphor layer 920 to emit white light. This white light is then filtered by the color filter 50 to achieve a color display. For example, if the light-emitting device 40 emits blue light, and this blue light irradiates the second phosphor layer 920, the second phosphor layer 920 can emit white light, which, when filtered by the color filter 50, also achieves a color display. Here, the material of the second phosphor layer 920 includes phosphor.

[0106] Furthermore, the second phosphor layer 920 can be directly formed on the surface of the first packaging layer 710 and the first light-shielding pattern 610 away from the driving backplate 11 through semiconductor processes, with the driving backplate 11 providing support. At this time, the second bonding layer 240 is disposed between the second phosphor layer 920 and the third substrate 13.

[0107] In other embodiments, see Figure 7 The light-emitting device 40 emits light of a single color. At this time, the display panel 20 also includes a third phosphor layer 930 and a second encapsulation layer 720. The third phosphor layer 930 is disposed on the side of the first encapsulation layer 710 away from the driving backplate 11 and covers the first light-shielding pattern 610. The second encapsulation layer 720 is disposed between the third phosphor layer 930 and the color filter 50.

[0108] In this design, the light-emitting device 40 emits a single color of light, which, when illuminating the third phosphor layer 930, causes the third phosphor layer 930 to emit white light. This white light is then filtered by the color filter 50 to achieve a color display. For example, if the light-emitting device 40 emits blue light, and this blue light illuminates the third phosphor layer 930, the third phosphor layer 930 can emit white light, which, when filtered by the color filter 50, also achieves a color display. Here, the material of the third phosphor layer 930 includes phosphor.

[0109] At this time, the third phosphor layer 930, the second encapsulation layer 720, and the color filter 50 can be sequentially formed on the side of the first encapsulation layer 710 away from the driving backplate 11 through semiconductor processes, under the support of the driving backplate 11. The second encapsulation layer 720 can protect the third phosphor layer 930, preventing damage to the third phosphor layer 930 during the fabrication of the color filter 50.

[0110] Here, as Figure 6 As shown, the second light-shielding pattern 620 can be formed solely from a light-shielding material, which may include, for example, a black pigment (such as carbon black) and a matrix material such as an organic resin. Alternatively, see [link to relevant documentation]. Figure 7 The second light-shielding pattern 620 is formed by overlapping two adjacent filter parts 510 with different light-emitting colors.

[0111] At this time, as Figure 7As shown, the height of the first light-shielding pattern 610 can be 3μm to 4μm, and the width of the first light-shielding pattern 610 can be 4μm to 7μm. The second light-shielding pattern 620 is formed by overlapping two adjacent filter parts 510 with different light-emitting colors. The height of the second light-shielding pattern 620 can be 4μm to 6μm, and the width of the second light-shielding pattern 620 can be 4μm to 5μm.

[0112] In addition, see Figure 7 The display panel 20 may also include a third encapsulation layer 730, which is disposed on the side of the color filter 50 away from the driving backplate 11 to protect the color filter 50 and reduce the risk of the color filter 50 being corroded, contaminated or damaged by water, oxygen, dust and other substances.

[0113] In some embodiments, see Figure 4 , Figure 6 and Figure 7 The light-emitting device 40 includes a light-emitting body 400 and a first connecting electrode 410 and a second connecting electrode 420 disposed on opposite sides of the light-emitting body 400. The first connecting electrode 410 is located on the side of the light-emitting body 400 closer to the driving back plate 11 and is connected to the driving back plate 11. The second connecting electrodes 420 of multiple light-emitting devices 40 can be connected to form a full-surface second connecting electrode 420, that is, the second connecting electrodes 420 of multiple light-emitting devices 40 are integrally disposed, which simplifies the manufacturing process and reduces costs.

[0114] The material of the first connecting electrode 410 includes a metallic material. For example, the material of the first connecting electrode 410 includes at least one selected from nickel, gold, copper, and silver.

[0115] The material of the second connecting electrode 420 mentioned above includes a transparent metal material, for example, the material of the second connecting electrode 420 includes indium tin oxide and / or indium zinc oxide.

[0116] Based on this, such as Figure 4 , Figure 6 and Figure 7 As shown, a groove S is formed between the second connecting electrodes 420 of adjacent light-emitting devices 40. The display panel 20 also includes an auxiliary electrode 430, which is disposed within the groove 430 and connected to the second connecting electrode 420 to reduce the voltage drop of the second connecting electrode 420 and reduce the risk of tip discharge. The auxiliary electrode 430 is made of at least one of gold, silver, and copper; for example, the material of the auxiliary electrode 430 includes gold.

[0117] In some embodiments, see Figure 4 , Figure 6 and Figure 7The display panel 20 further includes a protective layer 440 disposed between the second connecting electrode 420 and the driving backplate 11. The protective layer 440 exposes at least a portion of the surface of the light-emitting body 400 away from the driving backplate 11 and covers the periphery of the light-emitting device 40 and the driving backplate 11 between the light-emitting devices 40, thereby providing insulation protection for the light-emitting devices 40. The material of the protective layer 440 includes an insulating material, such as at least one of silicon nitride, silicon oxide, and silicon oxynitride.

[0118] like Figures 8 to 22 As shown, some embodiments of this disclosure also provide a method for manufacturing a display panel 20, including steps S100 to S200.

[0119] S100: Fabrication of light-emitting substrate 211.

[0120] In the above steps, refer to Figures 8 to 14 The light-emitting substrate 211 includes a driving backplate 11, a plurality of light-emitting devices 40, a protective layer 440, an auxiliary electrode 430, a first encapsulation layer 710, and a first light-shielding pattern 610. The structures of the driving backplate 11, the plurality of light-emitting devices 40, the protective layer 440, the auxiliary electrode 430, the first encapsulation layer 710, and the first light-shielding pattern 610 can be referred to above, and will not be repeated here.

[0121] In some embodiments, see Figures 8 to 14 S100 includes S110 to S170.

[0122] S110: Bond the epitaxial wafer 400' to the drive backplane 11.

[0123] In the above steps, refer to Figure 8 The epitaxial wafer 400' includes a transfer substrate 401, a light-emitting layer 402 and a first connection electrode layer 403, with the first connection electrode layer 403 located on the side of the light-emitting layer 402 near the driving backplate 11.

[0124] S120: Patterned epitaxial wafer 400' forms multiple stacked light-emitting bodies 400 and first connecting electrode 410.

[0125] In the above steps, refer to Figure 8 and Figure 9 First, the intermediate substrate 401 is removed, and then the light-emitting layer 402 and the first connecting electrode layer 403 are etched to form multiple light-emitting bodies 400 and multiple first connecting electrodes 410. One light-emitting body 400 is stacked on the side of a first connecting electrode 410 away from the driving backplate 11.

[0126] S130: Form a protective layer 440.

[0127] In the above steps, refer to Figure 10 First, a protective film is formed on the entire surface using a chemical vapor deposition process, and then an etching process is used to open the film to expose at least a portion of the surface of the light-emitting body 400 away from the driving backplate 11, thereby forming a protective layer 440.

[0128] S140: Form the second connecting electrode 420.

[0129] In the above steps, refer to Figure 11 The second connecting electrode 420 can be formed over an entire surface using a sputtering process. The second connecting electrode 420 is connected to the surface of the light-emitting body 400 away from the driving backplate 11 at the opening of the protective layer 440. A groove S is formed between the second connecting electrodes 420 of adjacent light-emitting devices 40.

[0130] S150: An auxiliary electrode 430 is formed in the groove S.

[0131] In the above steps, refer to Figure 12 The auxiliary electrode layer can be formed on the entire surface by sputtering first, and then the auxiliary electrode 430 can be formed by removing the part outside the groove S and retaining the auxiliary electrode layer inside the groove S.

[0132] S160: Form the first encapsulation layer 710.

[0133] In the above steps, refer to Figure 13 The first encapsulation layer 710 can be formed by a coating process and / or a thin film deposition process. The first encapsulation layer 710 covers the second connecting electrode 420 and the auxiliary electrode 430, and fills the groove S.

[0134] S170: Form the first light-blocking pattern 610.

[0135] In the above steps, refer to Figure 14 A full-layer light-shielding layer can be formed through a coating process, and then a first light-shielding pattern 610 can be formed through an etching process. The material of the light-shielding layer includes black pigment (such as carbon black) and matrix materials such as organic resin.

[0136] S200: Forms a color film 50 and a second light-blocking pattern 620.

[0137] In the above steps, refer to Figure 4 , Figure 6 , Figure 7 and Figures 15-22 The structure of the color filter 50 and the second light-blocking pattern 620 can be referred to above, and will not be repeated here in this disclosure.

[0138] In some embodiments, see Figure 4 , Figure 15 , Figure 16 and Figure 17S200 includes S210 to S213.

[0139] S210: A pixel defining layer 80 is formed on the side of the first encapsulation layer 710 away from the driving backplane 11.

[0140] In the above steps, refer to Figure 4 and Figure 15 The pixel defining layer 80 can be formed sequentially through a coating process and two etching processes. The pixel defining layer 80 has multiple pixel openings 810, each pixel opening 810 exposing multiple filter units 510. For example, one pixel opening 810 exposes one filter unit 520 (see...). Figure 5 ).

[0141] S211: A first phosphor layer 910 is formed on the side of the first encapsulation layer 710 away from the driving backplane 11.

[0142] In the above steps, refer to Figure 16 The first fluorescent layer 910 can be formed by spraying.

[0143] S212: A color filter 50 and a light-shielding pattern 620 are formed on the second substrate 12.

[0144] In the above steps, refer to Figure 5 and Figure 17 The color filter 50 includes multiple filter units 520, which are spaced apart. The second light-blocking pattern 620 is disposed between two adjacent filter units 520, and a gap is left between the second and the filter units 520.

[0145] S213: Bond the color filter 50 on the second substrate 12 to the first phosphor layer 910 on the driving backplate 11.

[0146] In the above steps, refer to Figure 4 A first bonding layer 230 can be formed on the side of the first phosphor layer 910 away from the driving backplate 11, and the color filter 50 is connected to the first phosphor layer 910 through the first bonding layer 230. Furthermore, the second light-shielding pattern 620 is located within the first positioning groove 820. In this case, the alignment accuracy of the array substrate 210 and the color filter substrate 220 can be improved by aligning the second light-shielding pattern 620 with the first positioning groove 820.

[0147] In some embodiments, Figure 6 , Figure 18 and Figure 19 S200 includes S220 to S222.

[0148] S220: A second phosphor layer 920 is formed on the side of the first encapsulation layer 710 away from the driving backplane 11.

[0149] In the above steps, refer to Figure 18 The second fluorescent layer 920 can be formed by spraying.

[0150] S221: A color filter 50, a second light-shielding pattern 620, and a third encapsulation layer 730 are formed on a third substrate 13.

[0151] In the above steps, refer to Figure 19 The color filter 50 includes multiple filter units 520, which are spaced apart. A second light-shielding pattern 620 is disposed between two adjacent filter units 520 and is adjacent to the filter units 520. A third encapsulation layer 730 covers the side of the color filter 50 and the second light-shielding pattern 620 away from the drive backplate 11.

[0152] Furthermore, the surface of the third substrate 13 away from the color filter 50 can be roughened by etching to form a textured surface with varying heights. Also, the surface of the third substrate 13 away from the color filter 50 can be etched to form a second positioning groove 130.

[0153] S222: Bond the surface of the third substrate 13 away from the color filter 50 to the second phosphor layer 920 on the driving backplate 11.

[0154] In the above steps, refer to Figure 6 A second bonding layer 240 can be formed on the side of the second phosphor layer 920 away from the driving backplate 11, and the third substrate 13 is connected to the second phosphor layer 920 through the second bonding layer 240. Furthermore, the first light-shielding pattern 610 is located within the second positioning groove 130. In this case, the alignment accuracy of the array substrate 210 and the color filter substrate 220 can be improved by aligning the first light-shielding pattern 610 with the second positioning groove 130.

[0155] In other embodiments, see Figure 7 and Figures 20-22 S200 includes S230 to S233.

[0156] S230: A third phosphor layer 930 is formed on the side of the first encapsulation layer 710 away from the driving backplane 11.

[0157] In the above steps, refer to Figure 20 The third fluorescent layer 930 can be formed by spraying.

[0158] S231: A second encapsulation layer 720 is formed on the side of the third phosphor layer 930 away from the driving backplane 11.

[0159] In the above steps, refer to Figure 21The second encapsulation layer 720 can be formed by a coating process and / or a thin film deposition process. The second encapsulation layer 720 can protect the third phosphor layer 930 and prevent it from being used in subsequent processes to prepare the color filter 50 (see [link]). Figure 22 During the process, the third fluorescent layer 930 was damaged.

[0160] S232: A color filter 50 is formed on the side of the second encapsulation layer 720 away from the drive backplane 11.

[0161] In the above steps, refer to Figure 22 During the formation of the color filter 50, a second light-shielding pattern 620 is also formed. The second light-shielding pattern 620 is formed by overlapping two adjacent filter sections 510 with different light-emitting colors.

[0162] S233: A third encapsulation layer 730 is formed on the side of the color filter 50 away from the drive backplate 11.

[0163] In the above steps, refer to Figure 7 The third encapsulation layer 730 can be formed by a coating process and / or a thin film deposition process. The third encapsulation layer 730 covers the side of the color filter 50 and the second light-shielding pattern 620 away from the drive backplate 11.

[0164] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0165] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display panel, characterized in that, include: Drive backplane; Multiple light-emitting devices are disposed on one side of the driving backplate; A color filter is disposed on the side of the light-emitting device away from the driving backplate; the color filter includes a plurality of pixel units, at least one pixel unit includes a plurality of filter portions that transmit different colors, and in a positive projection onto the driving backplate, one light-emitting device is located within one of the filter portions; wherein the plurality of pixel units are arranged in multiple rows and columns along a first direction and a second direction, and in two adjacent pixel units in the first direction and / or the second direction, adjacent filter portions transmit light of the same color; the first direction and the second direction intersect; A light-shielding pattern is disposed on the side of the light-emitting device away from the driving backplate and located between multiple light-emitting devices; the light-shielding pattern includes a first light-shielding pattern and a second light-shielding pattern. In the orthographic projection onto the driving backplate, the first light-shielding pattern is located between two adjacent pixel units, and the second light-shielding pattern is located between two adjacent filter portions in a pixel unit.

2. The display panel according to claim 1, characterized in that, The first light-blocking pattern is disposed on the side of the color filter near the drive back plate, and the filter portions that are adjacent to each other and transmit the same color of light in the first direction and / or the second direction are integrally disposed.

3. The display panel according to claim 2, characterized in that, Also includes: A first encapsulation layer covers the light-emitting device; the first light-shielding pattern is disposed on the surface of the first encapsulation layer facing the color filter.

4. The display panel according to claim 3, characterized in that, Also includes: A second substrate is disposed on the side of the color filter away from the driving backplate; a second light-shielding pattern is disposed on the surface of the second substrate close to the driving backplate. A pixel defining layer is disposed between the first encapsulation layer and the second substrate; The pixel defining layer has multiple pixel openings, one of which exposes multiple integrally formed filter portions; and the surface of the pixel defining layer facing the second substrate has a first positioning groove, and the second light-shielding pattern is located in the first positioning groove.

5. The display panel according to claim 4, characterized in that, The plurality of light-emitting devices emit light of a single color, and the display panel further includes: A first fluorescent layer is disposed on the side of the first encapsulation layer away from the driving backplane, and covers the first light-shielding pattern and the pixel defining layer; A first bonding layer is disposed between the fluorescent layer and the color filter.

6. The display panel according to claim 3, characterized in that, Also includes: A third substrate is disposed on the side of the color filter close to the driving backplate; a second light-shielding pattern is disposed on the surface of the third substrate away from the driving backplate, and a second positioning groove is provided on the surface of the third substrate facing the driving backplate, and the first light-shielding pattern is located in the second positioning groove.

7. The display panel according to claim 6, characterized in that, The surface of the third substrate facing the drive backplate has an undulating topography.

8. The display panel according to claim 6, characterized in that, The plurality of light-emitting devices emit light of a single color, and the display panel further includes: The second fluorescent layer is disposed on the side of the first encapsulation layer away from the driving backplate and covers the first light-shielding pattern; A second bonding layer is disposed between the second fluorescent layer and the third substrate.

9. The display panel according to claim 3, characterized in that, The plurality of light-emitting devices emit light of a single color, and the display panel further includes: A third fluorescent layer is disposed on the side of the first encapsulation layer away from the driving backplate and covers the first light-shielding pattern; The second encapsulation layer is disposed between the third phosphor layer and the color filter.

10. The display panel according to any one of claims 6 to 9, characterized in that, Also includes: The third encapsulation layer is disposed on the side of the color filter away from the drive backplate.

11. The display panel according to any one of claims 1 to 9, characterized in that, The color filter includes multiple filter units, including a red filter unit, a green filter unit, and a blue filter unit. Each filter unit includes four filter sections, which are arranged in two rows and two columns along the first direction and the second direction. The plurality of filter units are arranged in multiple rows and columns along the first direction and the second direction. Two adjacent rows of filter units are respectively a first filter unit row and a second filter unit row. The first filter unit row includes red filter units and green filter units arranged alternately along the row direction. The second filter unit row includes blue filter units and green filter units arranged alternately along the row direction. The red filter units and the blue filter units are staggered in the column direction.

12. The display panel according to any one of claims 1 to 9, characterized in that, It also includes an auxiliary electrode. The light-emitting device includes a light-emitting body and a first connecting electrode and a second connecting electrode disposed on opposite sides of the light-emitting body. The first connecting electrode is located on the side of the light-emitting body near the driving back plate. The second connecting electrodes of a plurality of light-emitting devices are integrally disposed, and a groove is formed between the second connecting electrodes of adjacent light-emitting devices. The auxiliary electrode is disposed in the groove and connected to the second connecting electrode.

13. A display device, characterized in that, include: The display panel as described in any one of claims 1 to 12.

14. A vehicle light, characterized in that, Includes the display device as described in claim 13.

15. A vehicle, characterized in that, Including the vehicle lights as described in claim 14.

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