Display panel and display device

Abstract

The present invention describes a display panel and a display device. The display panel provided by the present invention comprises: a first baffle wall, the first baffle wall encloses a plurality of first baffle wall openings; a light emitting device, arranged corresponding to the first baffle wall openings; a color conversion unit, at least partially located in the first baffle wall openings, and at least partially beyond the first baffle wall openings. The present invention also provides a display device. The display effect of the display panel can be improved by the present invention.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] With the booming development of display technology, high color gamut has become an important development direction. High color gamut means that the display screen has more colorful colors and stronger color display capabilities. High color gamut display screens can be achieved through methods such as color conversion. Color conversion display technology is an innovative semiconductor nanocrystal technology that can accurately transmit light, efficiently improve the color gamut value and viewing angle of the display screen, make the color purer and brighter, and make the color performance more tense. Displays using this technology can not only produce dynamic colors with a wider color gamut range, but also show real color palettes in the picture quality, surpassing the traditional backlight technology.

[0003] For example, using QD (Quantum Dot) display technology to achieve color conversion is considered one of the most promising methods for color display. Quantum dots are extremely tiny semiconductor nanocrystals that are invisible to the naked eye and have a unique property: whenever stimulated by light or electricity, quantum dots emit colored light. This property allows quantum dots to change the color of light emitted by the light source. A quantum dot display panel is a display panel that can use quantum dots to achieve color display.

[0004] Therefore, how to improve the display effect of color display has become a hot research topic. Summary of the invention

[0005] In view of this, the present invention provides a display panel and a display device.

[0006] The display panel provided by the present invention comprises:

[0007] a first retaining wall, wherein the first retaining wall encloses a plurality of first retaining wall openings;

[0008] A light emitting device is arranged corresponding to the first retaining wall opening;

[0009] The color conversion unit is at least partially located in the first barrier wall opening and at least partially exceeds the first barrier wall opening.

[0010] The present invention also provides a display device comprising the display panel.

[0011] This application can improve the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a top view of a display panel provided by an embodiment of the present invention;

[0013] Figure 2 yes Figure 1 Local cross-section along the AA direction;

[0014] Figure 3 is a cross-sectional view of a display panel designed by the inventor during the research process;

[0015] Figure 4 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0016] Figure 5 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0017] Figure 6 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0018] Figure 7 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0019] Figure 8 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0020] Fig. 9 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0021] Fig.10 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0022] Fig.11 is a partial top view of a display panel provided by an embodiment of the present invention

[0023] Fig.12 is along Fig.11 Local cross-section along the AA direction;

[0024] Fig.13 is along Fig.11 Local cross-section along the BB direction;

[0025] Fig.14 is a partial top view of a display panel provided by an embodiment of the present invention;

[0026] Fig.15 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0027] Fig.16 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0028] Fig.17 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0029] Fig.18 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0030] Fig.19 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0031] Fig. 20 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0032] Fig.21 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0033] Fig. 22 is along Figure 1 Another partial cross-sectional view in the AA direction;

[0034] Fig.23 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] It should be noted that specific details are described in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in a variety of other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0038] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present invention are described at the angles shown in the drawings and should not be understood as limiting the embodiments of the present invention. In addition, in the context, it should also be understood that when it is mentioned that an element is formed "on" or "under" another element, it can not only be formed directly "on" or "under" another element, but also be formed "on" or "under" another element indirectly through an intermediate element.

[0039] Furthermore, the example embodiments can be implemented in a variety of forms and should not be construed as being limited to the embodiments described herein; on the contrary, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated descriptions will be omitted. The words expressing position and direction described in the present invention are all illustrated with the accompanying drawings as examples, but can also be changed as needed, and all changes are included in the scope of protection of the present invention. The drawings of the present invention are only used to illustrate the relative position relationship, and the layer thickness of certain parts is exaggerated for easy understanding. The layer thickness in the drawings does not represent the proportional relationship of the actual layer thickness. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. The drawings of the embodiments of the present application use the same markings of the drawings. In addition, the similarities between the embodiments are not repeated.

[0040] Please refer to Figure 1 and Figure 2 As shown, Figure 1 A top view of a display panel provided by an embodiment of the present invention, Figure 2 For along Figure 1 A local cross-sectional view along the AA direction, wherein the cross-sectional view is perpendicular to the plane where the display panel is located.

[0041] Optionally, the display panel 100 is divided into a display area AA and a non-display area NA surrounding the display area AA. It can be understood that Figure 1 The midpoint line frame is used to illustrate the boundary between the display area AA and the non-display area NA. The display area AA is the area of ​​the display panel used to display the picture, usually including a plurality of pixel units arranged in an array, each pixel unit including a corresponding light-emitting device (e.g., a diode) and a control element (e.g., a thin film transistor constituting a pixel driving circuit). The non-display area NA surrounds the display area AA, usually including peripheral driving elements, peripheral wiring, and a fan-out area.

[0042] Optionally, the display panel 100 includes a first retaining wall 200, and the first retaining wall 200 encloses a plurality of first retaining wall openings 210. Optionally, the orthographic projection of the first retaining wall 200 on the plane where the display panel 100 is located forms a mesh structure, and the first retaining wall openings 210 are equivalent to mesh holes of the mesh structure.

[0043] The display panel 100 further includes a light emitting device 10, which is disposed corresponding to the first retaining wall opening 210. It should be noted that "corresponding" here means that the light emitting device 10 overlaps with the orthographic projection of the first retaining wall opening 210 on the plane where the display panel 100 is located, and it does not necessarily mean that the light emitting device 10 is also embedded in the first retaining wall opening 210. Optionally, the orthographic projection of the light emitting device 10 on the plane where the display panel 100 is located is located within the orthographic projection of the first retaining wall opening 210 on the plane where the display panel 100 is located.

[0044] The display panel 100 also includes a color conversion unit 20. Optionally, the color conversion unit 20 includes quantum dots, which can also be called nanocrystals or nanoparticles, and whose particle size is generally between 1-10 nm; nanoparticles can emit fluorescence after being stimulated because the continuous energy band structure of electrons and holes is quantum confined to a discrete energy level structure with molecular characteristics. The emission spectrum of quantum dots can be controlled by changing the size of quantum dots. By changing the size of quantum dots and their chemical composition, the emission spectrum can cover the entire visible light region, with a wide excitation spectrum and a narrow emission spectrum, so the spectrum coverage is high.

[0045] Of course, in some optional embodiments, the color conversion unit includes a fluorescent material, such as an organic phosphor.

[0046] Optionally, the color conversion unit 20 is at least partially located in the first barrier wall opening 210 , and at least partially exceeds the first barrier wall opening 210 .

[0047] Optionally, the display panel 100 includes a plurality of color conversion units 20 , and the color conversion units 20 correspond to the first barrier wall openings 210 one by one.

[0048] Optionally, the thickness of the color conversion unit 20 is greater than the thickness of the first retaining wall 200 , and the thickness direction is a direction perpendicular to the plane where the display panel 100 is located.

[0049] It should be noted that the color conversion unit 20 at least partially exceeds the first barrier wall opening 210 mentioned here can be understood as the color conversion unit 20 at least partially exceeds the level of the first barrier wall opening 210. That is to say, in the direction parallel to the display panel 100, the color conversion unit 20 at least partially does not overlap with the first barrier wall opening 210.

[0050] In other words, the color conversion unit 20 is at least partially defined in the first barrier wall opening 210 , and a portion of the color conversion unit 20 extends out of the first barrier wall opening 210 and exceeds the first barrier wall opening 210 .

[0051] In other words, in a direction perpendicular to the plane where the display panel 100 is located, the first retaining wall 200 includes relative upper and lower surfaces, and the color conversion unit 20 also includes relative upper and lower surfaces; the upper surface of at least one color conversion unit 20 is higher than the upper surface of the adjacent first retaining wall 200, and / or the lower surface of the color conversion unit 20 is lower than the lower surface of the adjacent first retaining wall 200.

[0052] In order to improve the display effect of the display panel, the inventors have found that: although the display screen achieved by the color conversion method has more colorful colors and stronger color display capabilities; however, the technical difficulty of using the color conversion layer to achieve colorization is that the color conversion and light efficiency extraction efficiency of the light source exciting the color conversion layer are low. In view of this, the inventors have provided the solution of this embodiment through further research. Through this embodiment, the thickness of the color conversion unit is increased, and the optical path of the light emitted by the light-emitting device in the color conversion unit is increased, so that the light emitted by the light-emitting device can fully excite the color conversion unit, thereby improving the conversion efficiency.

[0053] In some optional embodiments of the present application, the color conversion unit 20 at least partially extends beyond the first barrier wall opening 210 toward the light emitting device 10. In some optional embodiments of the present application, the color conversion unit 20 at least partially extends beyond the first barrier wall opening 210 toward the second substrate 2. Of course, because the first barrier wall opening 210 is an opening that penetrates the first barrier wall 200, the first barrier wall opening 210 has two ends that are connected to the external space in a direction perpendicular to the plane where the display panel is located; in some optional embodiments of the present application, the color conversion unit 20 can extend beyond the level of the first barrier wall 200 from both ends of the first barrier wall opening 210 in a direction perpendicular to the plane where the display panel is located.

[0054] Optionally, the display panel 100 includes a plurality of sub-pixels 30 of different colors. The sub-pixels 30 are arrayed in the display area AA. The sub-pixels 30 include a pair of light-emitting devices 10 and a color conversion unit 20 that are arranged opposite to each other. The sub-pixels 30 of different colors include color conversion units 20 with different light-emitting colors; the incident light can be converted into light of a specific color after passing through the color conversion unit 20, so that the sub-pixels 30 emit light of the corresponding color.

[0055] In the embodiment of the present invention, the color conversion units 20 included in the sub-pixels 30 of different colors have different light output colors. For example, for a display panel using the RGB three-color display technology, a color conversion unit with a red light output color is selected at the position corresponding to the red sub-pixel, a color conversion unit with a green light output color is selected at the position corresponding to the green sub-pixel, and a color conversion unit with a blue light output color is selected at the position corresponding to the blue sub-pixel.

[0056] Optionally, the first barrier wall opening 210 defines a sub-pixel 30 . For example, one first barrier wall opening 210 defines one sub-pixel 30 .

[0057] In some optional embodiments of the present application, the light emitting device may be an organic light emitting device (Organic Light Emitting Diode, OLED for short).

[0058] Of course, in some optional embodiments, the light emitting device may be a micro light emitting diode (Micro Light Emitting Diode, referred to as Micro-LED). The size of the Micro-LED is less than 100 μm. Using Micro-LED as the light emitting device 10 can effectively improve the life of the display panel, reduce the power consumption of the display panel, reduce the response time of the display panel, and increase the viewing angle of the display panel.

[0059] The following embodiments of the present application are described by taking the light emitting device 10 as a Micro-LED as an example.

[0060] In some optional embodiments of the present application, when arranging light-emitting devices, the light-emitting colors of the light-emitting devices included in the sub-pixels of different colors may be consistent. For example, light-emitting devices emitting white light may be arranged at the positions of the red sub-pixels, the green sub-pixels, and the blue sub-pixels, and the white light emitted by the light-emitting devices is converted into red light, green light, and blue light respectively after passing through the color conversion units of different colors.

[0061] Optionally, in some optional embodiments of the present application, for example, the light-emitting devices are all blue, and a color conversion unit does not need to be provided at the position of the blue sub-pixel.

[0062] Optionally, the display panel 100 further includes a first substrate 1 and a second substrate 2 that are arranged opposite to each other;

[0063] The first retaining wall 200, the light emitting device 10 and the color conversion unit 20 are located between the first substrate 1 and the second substrate 2;

[0064] The light emitting device 10 is placed on a side of the first substrate 1 facing the second substrate 2;

[0065] The first retaining wall 200 is carried on a side of the second substrate 2 facing the first substrate 1;

[0066] The color conversion unit 20 is carried on a side of the second substrate 2 facing the first substrate 1 .

[0067] Optionally, the first substrate 1 includes a substrate 110 and an array layer located on the side of the substrate 110 facing the second substrate 2, and an array layer 120 located on the substrate 110. Specifically, the array layer 120 includes a plurality of thin film transistors (TFT) and a pixel circuit composed of thin film transistors, which is used to control the light emitting device 10. The light emitting device 10 is disposed on the array layer 120 of the first substrate 1, and is electrically connected to the circuit in the array layer 120 through a connecting electrode or a eutectic layer.

[0068] When the display panel 100 is working, the light emitting device 10 emits light, and the light emitted by the light emitting device 10 is emitted to the corresponding color conversion unit 20, and the corresponding sub-pixel 30 emits light of a preset color. Light of different colors is mixed according to a certain light intensity ratio to produce multiple colors, so that the display panel can achieve full-color display. Among them, the side where the second substrate 2 is located is the light emitting side of the display panel 100.

[0069] Optionally, the first retaining wall 200 and the color conversion unit 20 are manufactured with the second substrate 2 as a carrier substrate and then aligned and bonded to the first substrate 1 that has completed the LED transfer.

[0070] Optionally, the second substrate 2 may be a cover plate. The second substrate 2 may also include a substrate material, which may be formed of any suitable light-transmitting insulating material, and may be rigid or flexible. The second substrate 2 may be used to protect the bonding inside the display panel, and may also be used to block oxygen and moisture. For example, the second substrate 2 may be formed of a polymer material such as polyimide (PI), polycarbonate (PC), polyether sulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyarylate (PAR) or fiberglass reinforced plastic (FRP).

[0071] Through this embodiment, the first retaining wall and the thickened color conversion unit are made on the same side of the substrate, so that the first retaining wall can play the role of auxiliary support and limit the thickened color conversion unit. In this way, the color conversion unit is prepared in the corresponding definition area during the preparation process, and then when heat or ultraviolet curing is used, a thicker color conversion unit can be formed because the definition area is defined by the first retaining wall; and due to the existence of the first retaining wall, overflow of the uncured color conversion unit can also be avoided.

[0072] In order to further improve the light conversion efficiency, the inventors tried to make the color conversion layer thicker, so that the color conversion layer can completely absorb the light used for excitation. However, it is difficult to further thicken the color conversion layer. Figure 3 As shown, Figure 3 This is a cross-sectional view of a display panel designed by the inventor during the research process.

[0073] During the preparation process of the color conversion layer 001, the color conversion layer 001 needs to be prepared in the corresponding definition area, and then cured by heat or ultraviolet light. Because the definition area is defined by the retaining wall 002 structure, the overflow of the color conversion layer 001 before curing cannot be controlled, and the color conversion layer 001 of different colors can be converted at intervals. If you want to increase the thickness of the color conversion layer 001, you need to increase the thickness of the retaining wall 002 structure that defines the color conversion layer 001. However, the thickness of the retaining wall 002 is often positively correlated with its width. The width is the size of the retaining wall clamped by two adjacent retaining wall openings in the direction parallel to the plane where the display panel is located. In other words, in order to obtain a higher retaining wall 002, it is necessary to increase the width of the retaining wall 002, that is, to increase the area occupied by the retaining wall 002 in the display panel, which will cause the interval between the light-emitting devices to increase to avoid the retaining wall 002, which will inevitably sacrifice a certain aperture ratio.

[0074] In view of this, in some optional embodiments of the present application, Figure 4 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0075] The display panel 100 further includes a raised portion 40, which includes a blank area 50 exposing the first barrier wall opening 210, and the color conversion unit 20 fills the blank area 50. That is, the color conversion unit 20 at least partially exceeding the first barrier wall opening 210 is located at the same level as the raised portion 40.

[0076] According to this embodiment, the blank area formed by the raised portion provides space for the extension of the color conversion unit, and at the same time can play a role in limiting the thickening of the color conversion unit.

[0077] Optionally, the raised portion 40 overlaps with the first retaining wall 200 .

[0078] In this way, the first retaining wall can be raised by the raising portion, thereby indirectly increasing the height of the first retaining wall; while not increasing the difficulty of production and occupying the area of ​​the display panel, the thickness of the color conversion unit is indirectly increased; thereby, the light emitted by the light-emitting device can fully excite the color conversion unit as much as possible, thereby improving the conversion efficiency and further improving the display effect of the display panel.

[0079] Please refer to Figure 1 and Figure 5 As shown, Figure 5 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0080] The display panel 100 further includes a light shielding layer 60 located on the side of the second substrate 2 facing the first substrate 1 ; the light shielding layer 60 is reused by the raised portion 40 .

[0081] Optionally, the light shielding layer 60 may be a black matrix, namely, BM. The light shielding layer 60 forms a mesh structure to shield the intervals between the sub-pixels 30. The meshes of the light shielding layer 60 whose orthographic projection on the plane where the display panel 100 is located is a mesh structure correspond to the first barrier wall openings 210.

[0082] Through this embodiment, the raised portion can be reused as a light-shielding layer in the display panel, which can provide space for increasing the thickness of the color conversion unit and enhance the reliability of thickening the color conversion unit. At the same time, it can also play a role in shielding the non-sub-pixel area, avoiding light leakage from adjacent sub-pixels or reflection of the metal material layer in the non-sub-pixel area.

[0083] Please refer to Figure 1 and Figure 6 As shown, Figure 6 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0084] The display panel 100 further includes a second blocking wall 300 located on a side of the first blocking wall 200 facing the first substrate 1 .

[0085] Specifically, along the thickness direction of the display panel 100 , the first retaining wall 200 and the second retaining wall 300 overlap. In addition, the orthographic projections of the first retaining wall 200 and the second retaining wall 300 on the display panel 100 are located at the interval between two adjacent light emitting devices 10 .

[0086] Optionally, the second retaining wall 300 forms a plurality of second retaining wall openings. Optionally, the second retaining wall 300 is similar in shape to the first retaining wall 100, and the orthographic projection of the second retaining wall 300 on the plane where the display panel 100 is located also forms a mesh structure, and the second retaining wall openings are equivalent to the mesh holes of the mesh structure. The second retaining wall can reduce the risk of crosstalk between sub-pixels 30 of different colors in the display panel.

[0087] Optionally, at least part of the light emitting device 10 is located in the opening of the second barrier wall. The second barrier wall can block the light of the light emitting device 10 from entering the adjacent sub-pixel and erroneously stimulating the color conversion unit of the adjacent pixel.

[0088] Optionally, the second retaining wall 300 may be formed with the first substrate 1 as a supporting substrate, or may be formed with the first retaining wall 200 as a supporting substrate.

[0089] Please refer to Figure 1 and Figure 7 As shown, Figure 7 For along Figure 1Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0090] The display panel 100 further includes a second blocking wall 300 located on a side of the first blocking wall 200 facing the first substrate 1 .

[0091] The raising portion 40 reuses the second retaining wall 300 .

[0092] Optionally, the second retaining wall 300 is formed by supporting the first retaining wall 200, that is, after the first retaining wall 200 is made, the second retaining wall 300 is made on the surface of the first retaining wall 200 away from the second substrate 2. After the second retaining wall 300 is made, the color conversion unit 20 is formed.

[0093] It is understandable that the first retaining wall 200 and the second retaining wall 300 are not manufactured at the same time, so the first retaining wall will not be restricted by the process and increase its width during patterning.

[0094] Through this embodiment, the raised portion is reused as the second retaining wall, which achieves the function of the second retaining wall without increasing the area occupied by the first retaining wall, and can also provide space for increasing the thickness of the color conversion unit.

[0095] Optionally, since the first retaining wall 200 and the second retaining wall 300 are not manufactured at the same time, the side wall of the support structure formed by the first retaining wall 200 and the second retaining wall 300 together forms a step. Figure 7 The cross-sectional view shows that the connection between the first retaining wall 200 and the side wall of the second retaining wall 300 is not smooth, but has a zigzag or step-like appearance. This can better define the thickened color conversion unit, so that the second retaining wall 300 provides space for the color conversion unit to increase its thickness, while enhancing the reliability of the thickening of the color conversion unit.

[0096] Please refer to Figure 1 and Figure 8 As shown, Figure 8 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0097] The display panel 100 further includes a color resist layer 70 located on a side of the second substrate 2 facing the first substrate 1 .

[0098] At least a portion of the color resist layer 70 serves as the raised portion 40 .

[0099] Optionally, the color resist layer 70 includes a main color resist 71 and an auxiliary color resist 72 corresponding to the first barrier wall opening 210 .

[0100] Optionally, the color conversion unit 20 is located on a side of the primary color resist 71 close to the first substrate 1. In this way, the light emitted by the light emitting device 10 can first pass through the color conversion unit 20, and the light excited by the color conversion unit 20 will subsequently pass through the primary color resist 71 with the corresponding color during the process of continuing to propagate. The setting of the primary color resist 71 can filter the color of part of the light that is not completely excited by the color conversion unit 20, thereby ensuring the chromaticity of the light emitted from the sub-pixel 30 area.

[0101] It can be understood that the plurality of primary color resists 71 respectively form a plurality of color resist units of different colors, and one color resist unit corresponds to one sub-pixel 30 , or one color resist unit corresponds to one first barrier wall opening 210 .

[0102] Optionally, the auxiliary color resist 72 is located in the interval area between the sub-pixels 30 to form the raised portion 40 .

[0103] Optionally, the auxiliary color resist 72 is in the same layer and material as the primary color resist 71. It should be noted here that the auxiliary color resist 72 and the primary color resist 71 being in the same layer and material does not necessarily require that the auxiliary color resist 72 and the primary color resist 71 are in the same layer or on the same plane. The auxiliary color resist 72 and the primary color resist 71 being in the same layer and material means that they are formed by the same manufacturing method or made of the same film-forming material.

[0104] According to this embodiment, the color resist layer is used as the raised portion, which can provide space for increasing the thickness of the color conversion unit without adding additional film layers and process steps.

[0105] In some optional embodiments of the present application, please refer to Fig. 9 As shown, Fig. 9 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0106] Optionally, the raised portion 40 includes at least two stacked color resist layers 70 of different colors. Optionally, the raised portion 40 includes multiple layers of auxiliary color resist 72; the multiple layers of auxiliary color resist 72 in the raised portion 40 are respectively made of the same layer and the same material as the main color resist 71 of different colors. That is, the auxiliary color resist 72 of different colors are stacked to form the raised portion 40; so that the raised portion 40 includes at least two stacked sub-layers of different colors that are allowed to pass.

[0107] Through this embodiment, the stacking of auxiliary color resists 72 of different colors can play a role in shading. It can not only further raise the first retaining wall, provide more space for increasing the thickness of the color conversion unit and enhance the reliability of thickening the color conversion unit, but also play a role in shielding the non-sub-pixel area to avoid light leakage from adjacent sub-pixels or reflection of the metal material layer in the non-sub-pixel area.

[0108] Of course, in some optional embodiments of the present application, the display panel 100 includes both a light shielding layer 60 and a color resist layer 70. The light shielding layer 60 is equivalent to a black matrix BM, and the openings of the black matrix define the main color resist 71 of the color resist layer 70. The structure formed by the light shielding layer 60 and the color resist layer 70 is equivalent to a color filter substrate (or a color filter, Color Filter abbreviated as CF).

[0109] For further optional information, please refer to Fig.10 As shown, Fig.10 For along Figure 1 Another partial cross-sectional view in the AA direction, wherein the cross section is perpendicular to the plane where the display panel is located. The raised portion 40 includes both an auxiliary color block 72 and a light shielding layer 60; the auxiliary color block 72 and the light shielding layer 60 are stacked. Optionally, the light shielding layer 60 is located on the side of the auxiliary color block 72 facing the first substrate 1 or the light-emitting device 10. Through this embodiment, the height of the raised portion can be further increased, providing space for increasing the thickness of the color conversion unit and improving the light conversion rate; at the same time, the light shielding ability of the auxiliary color block 72 can be improved by the light shielding layer to avoid light leakage.

[0110] Please refer to Fig.11 and Fig.12 As shown, Fig.11 A partial top view of a display panel provided by an embodiment of the present invention, Fig.12 For along Fig.11 A local cross-sectional view along the AA direction, wherein the cross-sectional view is perpendicular to the plane where the display panel is located.

[0111] Optionally, the color resist layer 70 includes a main color resist 71 corresponding to the light emitting device 10 and an auxiliary color resist 72 multiplexed as the padding portion 40 .

[0112] Optionally, in the display panel 100 , at least two sub-pixels 30 with the same light emitting color are arranged adjacent to each other.

[0113] Optionally, the display area of ​​the display panel 100 includes sub-pixels 30 arranged in an array along a first direction X and a second direction Y. The first direction X and the second direction Y intersect each other, but are both parallel to the plane where the display panel 100 is located.

[0114] Optionally, in this embodiment, the first direction X and the second direction Y are perpendicular to each other. The first direction X is defined as a pixel row, and the second direction Y is defined as a pixel column. The sub-pixels 30 in the same pixel row have the same color. In the same pixel column, sub-pixels of different colors are arranged adjacent to each other. Fig.11 For example, three color sub-pixels are arranged alternately and cyclically. For example, when the sub-pixels are red, green, and blue, in the first direction X, the sub-pixels are arranged in the order of red, green, and blue, and in the second direction Y, the sub-pixels are arranged cyclically in the order of red, green, and blue.

[0115] It can be understood that, since the light emitting colors of the primary color resist 71 and the sub-pixel 30 are consistent, the arrangement of the sub-pixel 30 is consistent with the arrangement of the primary color resist 71 .

[0116] Optionally, the color of the raised portion 40 between the adjacent primary color resists 71 of the same color is different from the color of the adjacent primary color resists 71. That is, the auxiliary color resist 72 between two adjacent sub-pixels 30 in a pixel row is different from the color of the sub-pixels 30 (or primary color resists 71) located on both sides of the auxiliary color resist 72 in the first direction. For example, Fig.11 If the middle sub-pixel is a red sub-pixel, then the auxiliary color resist 72 reused between two adjacent red sub-pixels as the padding portion 40 cannot be obtained by the red auxiliary color resist, but can be obtained by stacking the blue auxiliary color resist and the green auxiliary color resist.

[0117] Through this embodiment, it is possible to meet the sub-pixel arrangement requirements while preventing adjacent sub-pixels from being lit up when one sub-pixel is lit up.

[0118] Please refer to Fig.11 and Fig.13 As shown, Fig.13 For along Fig.11 A partial cross-sectional view along the BB direction, wherein the cross-section is perpendicular to the plane where the display panel is located. The similarities between this embodiment and the above embodiment are not repeated here. Differently, although the color resist layer 70 in the embodiment also includes a main color resist 71 corresponding to the light-emitting device 10 and an auxiliary color resist 72 reused as the raised portion 40; however, the color of the raised portion between the main color resists of different colors and adjacent to each other is the same as the color of at least one adjacent main color resist.

[0119] Through this embodiment, the height of the padding portion can be increased as much as possible while meeting the sub-pixel arrangement requirements, thereby indirectly increasing the thickness of the color conversion unit and improving the conversion efficiency.

[0120] It should be noted that for ease of understanding, this embodiment is based on Fig.11 The pixel arrangement shown is specifically described, but the pixel arrangement of other optional embodiments of the present application is not limited to this.

[0121] Please refer to Fig.14 As shown, Fig.14 It is a partial top view of a display panel provided by an embodiment of the present invention, in which sub-pixels of different colors of the display panel are arranged adjacent to each other.

[0122] It can be understood that, since the light emitting colors of the primary color resist 71 and the sub-pixel 30 are consistent, the arrangement of the sub-pixel 30 is consistent with the arrangement of the primary color resist 71 .

[0123] Optionally, the color resist layer 70 includes a main color resist 71 corresponding to the light emitting device, and the main color resists 71 of the same color in the first direction X and the second direction Y are not arranged adjacent to each other.

[0124] Optionally, the main color resist 71 of different colors is arranged alternately in a cycle in the first direction X and the second direction Y. For example, when the sub-pixels are red, green and blue, the sub-pixels are arranged in the order of red, green and blue in the first direction X, and the sub-pixels are also arranged in the order of red, green and blue in the second direction Y.

[0125] Through this embodiment, while meeting the sub-pixel arrangement requirements, the height of the cushioning layer around the sub-pixel can be increased as much as possible, thereby improving the structural stability of the color conversion unit after thickness and improving the conversion efficiency.

[0126] Please refer to Figure 1 and Fig.15 As shown, Fig.15 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0127] The light emitting device 10 is a light emitting device of a first color.

[0128] Optionally, the raised portion 40 reuses a color resist layer 70, but the color of the color resist layer 70 reused by the raised portion 40 is different from the first color, that is, the raised portion 40 does not include a color resist layer 70 that allows the first color to pass through.

[0129] Optionally, in this embodiment, the first color is blue. For example, in some optional embodiments, the sub-pixels of the display panel use a blue light emitting device as a light source, and the blue light emitter is equivalent to the first color light emitting device mentioned above. The light emitted by the blue light emitting device excites the red / green quantum dots in the photoconversion film of the color conversion unit. After receiving the blue light, the red quantum dots will excite the red light to pass through the color blocking layer; after receiving the blue light, the green quantum dots will excite the green light to pass through the color blocking layer; the blue light will directly pass through the color blocking layer, thereby forming a full-color display.

[0130] Specifically, when the color change layer 20 includes a photochromic quantum dot material, taking the example that the light emission colors of the color change layer 20 including quantum dots include red and green, the light emission colors of the light emitting units 10 included in the sub-pixels of different colors can be blue light with a higher frequency than red and green light. Under the excitation of blue light, the color change layer 20 including different quantum dot materials emits red light and green light respectively. At this time, the color change layer 20 at the position corresponding to the blue sub-pixel in the second substrate 2 can be a transparent material.

[0131] Optionally, the raised portion 40 does not include the blue color resist layer 70. Schematically, the same pattern filling in the figure indicates that the emitted light has the same color.

[0132] Through this embodiment, the color of light allowed to pass through the color resist layer in the elevated portion is different from the first color; while realizing the multiplexing of the elevated portion into other functional structures without adding additional process steps, light leakage can be avoided and crosstalk can be prevented.

[0133] Please refer to Figure 1 and Fig.16 As shown, Fig.16 For along Figure 1 Another partial cross-sectional view along the AA direction in the middle, wherein the cross section is perpendicular to the plane where the display panel is located. The light-emitting device 10 is a light-emitting device of the first color, and other similarities with the previous embodiment are not repeated in this embodiment. Differently, the raised portion 40 includes a color resist layer 70 that allows the first color to pass through. Along a direction parallel to one light-emitting device 10 pointing to another light-emitting device 10, the color resist layer 70 of the first color in the raised portion 40 includes a disconnected first portion 41 and a second portion 42.

[0134] Optionally, in this embodiment, the first color is blue.

[0135] Optionally, a color resist layer 70 of other colors is filled between the first portion 41 and the second portion 42 , or a light shielding material is filled between the first portion 41 and the second portion 42 .

[0136] Optionally, in some embodiments, the light shielding material filled between the first portion 41 and the second portion 42 may be the same as the material of the light shielding layer 60 .

[0137] Optionally, the first part 41 and the second part 42 are located at a sublayer of the raised part facing the second substrate, and are film layers adjacent to the light-shielding layer. The light of the first color emitted by the light-emitting device can be shielded by other sublayers of the raised part, and the light-shielding layer forming the color filter substrate can be directly reused as the light-shielding material filled between the first part 41 and the second part 42.

[0138] Through this embodiment, the thickness of the raised portion can be further increased, and while the raised portion can be reused as other functional structures without adding additional process steps, light leakage can be avoided and crosstalk can be prevented.

[0139] Please refer to Figure 1 and Fig.17 As shown, Fig.17 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0140] The color of the color resist layer 70 on the side of the raised portion 40 facing the first substrate 1 and the color of the light emitting device 10 are two non-adjacent colors of the seven-color rainbow.

[0141] It should be noted that the seven colors of the rainbow are red, orange, yellow, green, cyan, blue and purple in order.

[0142] Optionally, the raised portion 40 includes a plurality of color resist layers 70 (or auxiliary color resists 72 ) stacked in layers; that is, the raised portion 40 includes a plurality of sub-layers.

[0143] Optionally, the color of the color-resist layer on the side of the raised portion facing the first substrate and the color of the light-emitting device are colors separated by at least two other colors in the seven-color rainbow.

[0144] Optionally, after the colors of the sub-pixels (or main color resist 71) in the display panel are arranged in sequence according to the seven colors of the rainbow, adjacent colors cannot be used as the colors of the color resist layer 70 on the side of the raised portion 40 facing the first substrate 1 and the colors of the light-emitting device 10 respectively.

[0145] For example, when the sub-pixels are red, green and blue, after the colors of the sub-pixels (or the main color resist 71) in the display panel are arranged in order according to the seven colors of the rainbow, blue and green are adjacent. Therefore, the color of the color resist layer 70 on the side of the raised portion 40 facing the first substrate 1 and the color of the light-emitting device 10 cannot be blue and green respectively.

[0146] Optionally, the light emitting device 10 is a light emitting device of a first color, and the first color is blue. In this way, the raised portion can be made of at least two colors of color resist layers stacked. It is sufficient as long as the color of the color resist layer on the side of the raised portion facing the first substrate is selected to be red instead of green.

[0147] Through this embodiment, light leakage can be avoided and crosstalk can be prevented. For example, blue and green have intersections in the visible light band, and the light in the intersection may leak a part through the padding formed by the color resist layer. The design of this embodiment places the red color resist layer at the film layer position closest to the blue light-emitting device, so that the light in the intersection of blue and green can be filtered out, and crosstalk can be prevented while taking into account the technical effects of the above embodiments.

[0148] Please refer to Figure 1 and Fig.18 As shown, Fig.18 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0149] The side wall of the raised portion 40 is provided with a light shielding layer 60 . That is, the surface of the raised portion 40 facing the color conversion unit 20 is covered with the light shielding layer 60 .

[0150] In this way, the raised portion can be used so that the light emitted by the light emitting device can be intercepted by the light shielding layer even if the light is emitted at an angle.

[0151] Optionally, the raised portion 40 includes a color resist layer 70. Optionally, the color resist layer 70 also includes a main color resist 71 corresponding to the light emitting device 10 and an auxiliary color resist 72 multiplexed as the raised portion 40.

[0152] It can be understood that the side wall of the raised portion 40 is provided with a light shielding layer 60 , which actually means that the side wall of the auxiliary color resist 72 is provided with a light shielding layer 60 .

[0153] Optionally, the auxiliary color resist 72 reused as the padding portion is in the same layer and material as at least one adjacent main color resist.

[0154] In addition, since the sidewall of the auxiliary color block is provided with a light shielding layer, even if the color of the auxiliary color block is the same as the color of the main color block in the adjacent sub-pixel, it can be shielded by the light shielding layer, thereby preventing the light that should be emitted from the area where a certain sub-pixel is located from being emitted from other sub-pixel areas located nearby.

[0155] Further, the light shielding layer 60 encapsulates the raised portion 40. That is, the uppermost surface, the lowermost surface and the side surface of the auxiliary color resist 72 reused as the raised portion 40 are all wrapped by the light shielding layer 60. It can be understood that the light shielding layer 60 encapsulating the auxiliary color resist 72 reused as the raised portion 40 can also be equivalent to forming a part of the raised portion 40.

[0156] Optionally, the raised portion 40 includes a plurality of sub-layers.

[0157] In this way, by encapsulating the multiple sub-layers of the elevated portion with the shading layer, film layer separation is avoided, and the height of the elevated portion can be further increased while making the elevated portion have higher structural stability, thereby indirectly improving the structural stability of the thickened color conversion unit.

[0158] Please refer to Figure 1 and Fig.19 As shown, Fig.19 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0159] The side wall of the raised portion 40 is provided with a reflective layer 80 ; that is, the surface of the raised portion 40 facing the color conversion unit 20 is covered with the reflective layer 80 .

[0160] Through this embodiment, the light emitted by the light-emitting device can be intercepted by the reflective layer even if it is emitted at an angle, thereby preventing the light that should be emitted from the area where a certain sub-pixel is located from being emitted from other sub-pixel areas located nearby. In addition, even if the light emitted by the light-emitting device is emitted at an angle, not only can it be intercepted by the reflective layer, but the obliquely emitted light can also be reflected back into the color conversion unit by the reflective layer to continue to excite the color conversion unit. Therefore, the emitted light emitted by the light-emitting device can be fully utilized, further improving the problem of low brightness of the display panel.

[0161] Please refer to Figure 1 and Fig. 20 As shown, Fig. 20 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0162] Optionally, a portion of the color conversion unit 20 that faces the light-emitting device 10 and extends beyond the first retaining wall opening 210 is a protruding area 90 .

[0163] That is, in a direction perpendicular to the plane where the display panel 100 is located, the first retaining wall 200 includes opposite upper and lower surfaces, and the color conversion unit 20 also includes opposite upper and lower surfaces; relative to the first retaining wall 200 on the adjacent side, the lower surface of at least one color conversion unit 20 is lower than the lower surface of the adjacent first retaining wall 200. That is, the color conversion unit 20 extends toward the light-emitting device 10. In this way, it can be closer to the light-emitting device 10, and the light emitted by the light-emitting device 10 can be better utilized.

[0164] Please refer to Figure 1 and Fig.21 As shown, Fig.21 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0165] Optionally, the light emitting device 10 includes a light emitting area 11 ; the protruding area 90 overlaps with the light emitting area 11 of the light emitting device 10 .

[0166] It can be understood that the light emitting device 10 includes a light emitting layer and electrode layers located on both sides of the light emitting layer, and the light emitting area 11 is the area where the light emitting layer is located.

[0167] Optionally, the area of ​​the protruding area 90 is greater than or equal to the area of ​​the light-emitting area 11 .

[0168] The inventors have found that if the material of the color conversion unit needs to extend beyond the first retaining wall to increase its thickness, its morphology will be smaller than the area of ​​the part of the color conversion unit embedded in the opening of the first retaining wall due to the side engraving, that is, the protruding area forms a missing part relative to the color conversion unit embedded in the opening of the first retaining wall.

[0169] Through this embodiment, the missing portion of the color conversion unit beyond the opening of the first retaining wall can avoid the light-emitting area 11 of the light-emitting device 10 as much as possible; the thickened portion of the color conversion unit can be fully utilized without increasing the risk of residual light.

[0170] Optionally, the color conversion unit corresponding to the first color sub-pixel does not include a protruding area; the corresponding color conversion unit corresponding to the second color sub-pixel includes a protruding area. Optionally, the first color is blue or red, and the second color is green. Because the inventors have found that the green screen at the front position of the LED chip corresponding to the sub-pixel is blue, mainly because the thickness of the color conversion unit in the green sub-pixel is affected by the first blocking wall, and the conversion rate after the thickness is affected is insufficient compared with the color conversion units of other color sub-pixels.

[0171] Through this embodiment, the process is easier and the difference in sub-pixels can be compensated. When patterning different color conversion units corresponding to different color sub-pixels, the etching degree of the color conversion unit corresponding to the first color sub-pixel is controlled to be different from the etching degree of the color conversion unit corresponding to the second color sub-pixel and the above requirements are met.

[0172] Please continue to refer to Figure 1 and Fig.21 Optionally, the center of the light emitting device 10 is offset relative to the center of the first retaining wall opening 210 .

[0173] Furthermore, the light emitting area 11 of the light emitting device 10 is placed as close to the center of the opening of the first retaining wall as possible.

[0174] Optionally, the light emitting area 11 of the light emitting device 10 overlaps with the center of the opening of the first retaining wall as much as possible.

[0175] It can be understood that the center of the light-emitting device and the center of the light-emitting area do not necessarily coincide with each other. For example, the LED includes a first area and a second area, the center of the LED is located between the first area and the second area, and the two connecting electrodes of the LED are respectively located in the first area and the second area. The first area includes a first-type semiconductor layer, a light-emitting layer, and a second-type semiconductor layer stacked in sequence, that is, the light-emitting area is located in the first area of ​​the LED chip, and the second area is obtained by extending the electrode of the light-emitting area of ​​the LED away from the array layer or the second-type semiconductor layer from the first area, and is used to connect the connecting electrode or the eutectic layer in the array layer.

[0176] Through this embodiment, the center of the first retaining wall opening is basically coincident with the center of the protruding area, so that the portion of the color conversion unit that exceeds the first retaining wall opening can be fully utilized as much as possible. For the protruding area with limited area caused by side engraving, the effectiveness of the protruding area is maximized without increasing the risk of residue.

[0177] Please refer to Figure 1 and Fig. 22 As shown, Fig. 22 For along Figure 1 Another partial cross-sectional view along the AA direction, wherein the cross-section is perpendicular to the plane where the display panel is located.

[0178] Optionally, the center of the protruding area is offset relative to the center of the first retaining wall opening 210 .

[0179] Furthermore, the center of the protruding area can be as close to the light emitting area 11 of the light emitting device 10 as possible.

[0180] Optionally, the color conversion unit may adopt a Halfton process, and only a portion of the light-emitting area corresponding to the light-emitting device 10 that exceeds the opening of the first retaining wall is retained to form a protruding area.

[0181] The inventors have found that the light-emitting area 11 of the light-emitting device 10 has serious light leakage relative to the right side of the first baffle wall opening 210, that is, the right side of the sub-pixel. Through this embodiment, there is no need to increase the difficulty of transporting the light-emitting device. While appropriately changing the process and not increasing the difficulty of the process, the part of the color conversion unit that exceeds the first baffle wall opening can be fully utilized as much as possible, and the increase of leakage light can be prevented without increasing the risk of residual light.

[0182] The present invention further provides a display device, comprising the display panel provided by the present invention. Fig.23 As shown, Fig.23 1 is a schematic diagram of a display device according to an embodiment of the present invention. The display device 1000 includes a display panel 100 according to any one of the above embodiments of the present invention. Fig.23 The embodiment only takes a mobile phone as an example to illustrate the display device 1000. It can be understood that the display device provided in the embodiment of the present invention can be a computer, a television, a car display device or other display devices with display functions, and the present invention does not specifically limit this. The display device provided in the embodiment of the present invention has the beneficial effects of the display panel provided in the embodiment of the present invention. For details, please refer to the specific description of the display panel in the above embodiments, and this embodiment will not be repeated here.

[0183] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A display panel, characterized in that: The display panel includes a first substrate and a second substrate arranged opposite to each other, and the display panel further includes: a first retaining wall, the first retaining wall enclosing a plurality of first retaining wall openings, and the first retaining wall being carried on a side of the second substrate facing the first substrate; A light emitting device is arranged corresponding to the first retaining wall opening; A color conversion unit is at least partially located in the first barrier wall opening and at least partially exceeds the first barrier wall opening; A second retaining wall is located on a side of the first retaining wall facing the first substrate, and a side wall of the support structure formed by the first retaining wall and the second retaining wall together forms a step; Wherein, the color conversion unit extends beyond the level where the first retaining wall is located from both ends of the opening of the first retaining wall in a direction perpendicular to the plane where the display panel is located.

2. The display panel according to claim 1, wherein: The first retaining wall, the light emitting device and the color conversion unit are located between the first substrate and the second substrate. Wherein, the light emitting device is carried on a side of the first substrate facing the second substrate; The color conversion unit is carried on a side of the second substrate facing the first substrate.

3. The display panel according to claim 1, wherein: The display panel further includes a padding portion; The raised portion includes a blank area exposing the first retaining wall opening, and the color conversion unit fills the blank area.

4. The display panel according to claim 3, wherein: The display panel further includes a color resist layer located on a side of the second substrate facing the first substrate; The padding portion reuses the color resist layer.

5. The display panel according to claim 4, wherein: The raised portion includes at least two color resist layers of different colors stacked together.

6. The display panel according to claim 4, wherein: The color resist layer includes a main color resist corresponding to the light emitting device and an auxiliary color resist multiplexed as the raised portion, and the color of the raised portion between the main color resists of the same color and adjacent to each other is different from the color of the main color resists adjacent to the raised portion.

7. The display panel according to claim 4, wherein: The color resist layer includes a main color resist corresponding to the light emitting device and an auxiliary color resist multiplexed as the raised portion, and the color of the raised portion between the main color resists of different colors and adjacent to each other is the same as the color of at least one of the main color resists adjacent to it.

8. The display panel according to claim 4, wherein: Adjacently arranged sub-pixels have different colors. 9 . The display panel according to claim 4 , wherein the light emitting device is a first color light emitting device, and the color of light allowed to pass through the color resist layer in the raised portion is different from the first color.

10. The display panel according to claim 4, wherein: The light emitting device is a first color light emitting device, and the raised portion includes a color resist layer that allows light of the first color to pass through; Along a direction parallel to one of the light emitting devices and directed toward another of the light emitting devices, the color resist layer of the first color in the raised portion includes a first portion and a second portion that are disconnected.

11. The display panel according to claim 4, wherein: The color of the color-resist layer on the side of the raised portion facing the first substrate and the color of the light-emitting device are respectively two non-adjacent colors of the seven-color rainbow.

12. The display panel according to claim 4, wherein: The side wall of the raised portion is provided with a light shielding layer.

13. The display panel according to claim 4, wherein: The side wall of the raised portion is provided with a reflective layer.

14. The display panel according to claim 3, wherein: The display panel further includes a light shielding layer located on a side of the second substrate facing the first substrate; The raised portion reuses the light shielding layer.

15. The display panel according to claim 3, wherein: The elevated portion reuses the second retaining wall.

16. The display panel according to claim 1, wherein: The portion of the color conversion unit that extends beyond the first retaining wall opening toward the light-emitting device is a protruding area. The protruding area overlaps with a light emitting area of ​​the light emitting device.

17. A display device, characterized in that: include: A display panel as claimed in any one of claims 1 to 16.

Images