Display panel

Abstract

The invention discloses a display panel which comprises a substrate and a plurality of pixel structures, the pixel structures are arranged on the substrate, and each pixel structure comprises a first light-emitting element, a second light-emitting element and a third light-emitting element. The first light-emitting element is arranged on the substrate and is suitable for generating first colored light, and the light-emitting surface of the first light-emitting element comprises a combination area. The second light-emitting element is arranged on a part of the combination area and is suitable for generating second colored light. The third light-emitting element is arranged on the other part of the combination area and is suitable for generating third colored light.

Description

Technical Field

[0001] The invention relates to a display panel. Background Art

[0002] Light-emitting diode display (LED Display) is a display that uses light-emitting diodes as light sources. Micro LED is a product that thins, miniaturizes and arrays light-emitting diodes (LEDs), and reduces the size of the LEDs to the micron level. Micro LED Displays made with micro LEDs have many advantages, such as high brightness, high resolution, high contrast and power saving.

[0003] However, when the size of the LED is reduced to micrometer level, the difficulty of manufacturing will increase. Therefore, the structure of the light emitting element of the LED display is relatively difficult to manufacture and repair. Summary of the invention

[0004] The present invention provides a display panel which has the advantages of being easy to produce and maintain.

[0005] To achieve the above advantages, an embodiment of the present invention provides a display panel, comprising: a substrate and a plurality of pixel structures. The pixel structures are arranged on the substrate, and each pixel structure comprises a first light-emitting element, a second light-emitting element and a third light-emitting element. The first light-emitting element is arranged on the substrate and is suitable for generating a first color light, and a light-emitting surface of the first light-emitting element comprises a combination area. The second light-emitting element is arranged on a part of the combination area and is suitable for generating a second color light. The third light-emitting element is arranged on another part of the combination area and is suitable for generating a third color light.

[0006] In one embodiment of the present invention, the first light-emitting element, the second light-emitting element and the third light-emitting element each have a first electrode and a second electrode, and the first electrode and the second electrode both face the substrate, and each pixel structure further includes a plurality of third electrical connectors and a plurality of second electrical connectors, wherein: the first electrode and the second electrode of the first light-emitting element are respectively electrically connected to the substrate; the first electrodes of the second light-emitting element and the third light-emitting element are respectively electrically connected to the substrate through the third electrical connector; the second electrodes of the second light-emitting element and the third light-emitting element are respectively electrically connected to the second electrode of the first light-emitting element through the second electrical connector.

[0007] In one embodiment of the present invention, the second light-emitting element and the third light-emitting element each have a first electrode and a second electrode, the first electrode and the second electrode of the first light-emitting element are respectively located on opposite sides of the first light-emitting element, the first electrode of the first light-emitting element faces the substrate, and the first electrode and the second electrode of the second light-emitting element and the third light-emitting element both face the substrate, and each pixel structure further includes a plurality of third electrical connectors and a plurality of second connectors, wherein: the first electrode of the first light-emitting element is electrically connected to the substrate; the first electrodes of the second light-emitting element and the third light-emitting element are electrically connected to the substrate through the third electrical connectors; the second electrodes of the second light-emitting element and the third light-emitting element are electrically connected to the second electrode of the first light-emitting element and the substrate through the second electrical connectors.

[0008] In one embodiment of the present invention, the light emitting surface of the first light emitting element further includes a non-combination area.

[0009] In one embodiment of the present invention, the combination area and the non-combination area are separated from each other.

[0010] In one embodiment of the present invention, the combination area includes two sub-combination areas separated from each other, and the second light-emitting element and the third light-emitting element are respectively disposed on the two sub-combination areas.

[0011] In one embodiment of the present invention, the non-combination region includes a plurality of sub-non-combination regions separated from each other.

[0012] In one embodiment of the present invention, the first light emitting element comprises a plurality of light emitting components separated from each other, and the two sub-combination regions and the sub-non-combination region are respectively a light emitting surface of the light emitting component.

[0013] In one embodiment of the present invention, in the same pixel structure of the display panel, the area of ​​the light emitting surface of the first light emitting element is A1, the sum of the area of ​​one light emitting surface of the second light emitting element and the area of ​​one light emitting surface of the third light emitting element is A2, and A1 is greater than or equal to A2.

[0014] In one embodiment of the present invention, the ratio of A1:A2 is 1:1, 2:1 or 3:2.

[0015] In one embodiment of the present invention, the first light emitting element, the second light emitting element and the third light emitting element are all micro light emitting diodes.

[0016] In one embodiment of the present invention, the first color light is red light.

[0017] Through the above description, the display panel of the present invention is easy to manufacture and maintain because each pixel structure therein has a first light-emitting element, a second light-emitting element and a third light-emitting element that emit light of different colors, and the second light-emitting element and the third light-emitting element are arranged on the light-emitting surface of the first light-emitting element to present a double-layer structure.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a display panel according to an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a three-dimensional structure of a pixel structure in an embodiment of the present invention;

[0021] FIG. 3A to FIG. 3C for Figure 2 A schematic diagram of the combination of the sub-pixel structures in FIG.

[0022] Figure 4 For the general FIG. 3A to FIG. 3C A side view schematic diagram of a light emitting element after being combined into a sub-pixel structure;

[0023] FIG. 5A to FIG. 5C is a schematic diagram of the combination of light-emitting elements in another embodiment of the present invention;

[0024] Figure 6 For the general FIG. 5A to FIG. 5C A side view schematic diagram of a pixel structure after the light-emitting elements are combined;

[0025] 7A to 7F Schematic diagram of the structure of a pixel in various feasible embodiments of the present invention. DETAILED DESCRIPTION

[0026] In the following articles, the terms used in the description of the embodiments of the present invention, such as the description of the directions or positional relationships indicated by "upper", "lower", etc., are described according to the directions or positional relationships shown in the drawings used. The above terms are only for the convenience of describing the present invention and are not intended to limit the present invention, i.e., they do not indicate or imply that the elements mentioned must have a specific direction or be constructed in a specific direction. In addition, the terms "first", "second", etc. mentioned in this specification or the scope of the patent application are only used to name the element or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

[0027] Figure 1 FIG. 4 is a schematic diagram of a display panel according to an embodiment of the present invention. Figure 2 A schematic diagram of a three-dimensional structure of a pixel structure in an embodiment of the present invention. Figure 1 and Figure 2 As shown, the display panel 1 in the embodiment of the present invention includes a substrate 2 and a plurality of pixel structures 3. The pixel structures 3 are disposed on the substrate 2, and each pixel structure 3 includes a first light-emitting element 41, a second light-emitting element 42, and a third light-emitting element 43. The first light-emitting element 41 is disposed on the substrate 2 and is suitable for generating a first color light, and the light-emitting surface O1 of the first light-emitting element 41 includes a combination area S1; the second light-emitting element 42 is disposed on a portion of the combination area S1 and is suitable for generating a second color light; the third light-emitting element 43 is disposed on another portion of the combination area S1 and is suitable for generating a third color light.

[0028] The substrate 2 in the present embodiment is, for example, a complementary metal oxide semiconductor substrate (CMOS Substrate), but is not limited thereto. The first light-emitting element 41, the second light-emitting element 42, and the third light-emitting element 43 are, for example, micro light-emitting diode (μLED) elements, but are not limited thereto. The second light-emitting element 42 and the third light-emitting element 43 are, for example, light-transmitting. When stacked vertically, the color light generated by the first light-emitting element 41 located below can penetrate the second light-emitting element 42 and the third light-emitting element 43 located above and be emitted. The first color light is, for example, red light. The second color light is, for example, green light. The third color light is, for example, blue light.

[0029] In this embodiment, because the light emitting surface O1 of the first light emitting element 41 has a larger area than the light emitting surfaces of other light emitting elements, the type of the first light emitting element 41 can be selected according to the product requirements. For example, in the embodiment where the first light emitting element is a red micro-LED, because the light intensity is weaker than that of light emitting elements of other colors, the color control performance of each pixel structure can be controlled by increasing the area of ​​the light emitting surface, but the type of the first light emitting element 41 is not limited to this.

[0030] like Figure 2As shown, in the present embodiment, the first light-emitting element 41 includes, for example, four light-emitting elements 41a of the same size and shape, but is not limited thereto. In other embodiments, the number of light-emitting elements 41a of each light-emitting element 41 may be one or more. Each light-emitting element 41a is, for example, a micro-light-emitting diode. The second light-emitting element 42 and the third light-emitting element 43 are, for example, light-emitting diodes respectively. In other embodiments, the second light-emitting element 42 and the third light-emitting element 43 may also include a plurality of light-emitting elements respectively. Each pixel structure 3 includes, for example, four sub-pixel structures, and the four sub-pixel structures include, according to the composition, two first sub-pixel structures 31, one second sub-pixel structure 32 and one third sub-pixel structure 33. Each first sub-pixel structure 31 is, for example, composed of a single light-emitting element 41a. The second sub-pixel structure 32 is composed of a stack of a light-emitting element 41a and a second light-emitting element 42. The third sub-pixel structure 33 is composed of a stack of a light-emitting element 41a and a third light-emitting element 43. In addition, the light-emitting surface O1 includes, for example, the light-emitting surfaces of these light-emitting elements 41a. The light emitting surface O2 of the second light emitting element 42 and the light emitting surface O3 of the third light emitting element 43 are both squares having the same area size and shape as the light emitting surface of the light emitting element 41 a , but the present invention is not limited thereto.

[0031] exist Figure 2 In the embodiment, the light emitting surface of the light emitting element 41a constituting the second sub-pixel structure 32 and the third sub-pixel structure 33 is set as the combination area S1, and the light emitting surface of the light emitting element 41a constituting the first sub-pixel structure 31 is set as the non-combination area S2. Since the first sub-pixel structure 31, the second sub-pixel structure 32 and the third sub-pixel structure 33 are separated from each other in this embodiment, the combination area S1 and the non-combination area S2 are separated from each other, and the combination area S1 and the non-combination area S2 are also, for example, each separated into two sub-combination areas ( Figure 2 The two S1s are each a subcombination area) and two non-subcombination areas separated from each other ( Figure 2 The two S2 marked are each a non-sub-combination area. The two sub-combination areas and the two sub-non-combination areas are both light-emitting surfaces of the light-emitting element 41a. The second light-emitting element 42 and the third light-emitting element 43 are respectively disposed on one of the sub-combination areas.

[0032] exist Figure 2 In the embodiment, the area of ​​the light emitting surface O1 of the first light emitting element 41 in each pixel structure 3 (hereinafter referred to as A1) is greater than the combination of the areas of the light emitting surface O2 of the second light emitting element 42 and the light emitting surface O3 of the third light emitting element 43 in each pixel structure 3 (hereinafter referred to as A2). In this embodiment, A1:A2 is, for example, 2:1, but the invention is not limited thereto.

[0033] FIG. 3A to FIG. 3C for Figure 2 Schematic diagram of the three-dimensional decomposition of each sub-pixel structure. Figure 4 For the general FIG. 3A to FIG. 3C A cross-sectional schematic diagram of a light-emitting element combined into a sub-pixel structure. Figure 3A is a schematic diagram of a second sub-pixel structure 32, Figure 3B is a schematic diagram of a third sub-pixel structure 33, Figure 3C is a schematic diagram of the first sub-pixel structure 31. It should be noted that: Figure 4 It is mainly used to illustrate the vertical configuration relationship of each sub-pixel structure, and does not correspond to Figure 2 and FIG. 3A to FIG. 3B Horizontal configuration.

[0034] like Figure 3A and Figure 4 As shown, in this embodiment, the second sub-pixel structure 32 includes a first light-emitting element 41 (i.e., the light-emitting element 41a) and a second light-emitting element 42 stacked on the substrate 2 along the vertical direction. The light-emitting element 41a of the first light-emitting element 41, for example, has a first electrode 51 and a second electrode 52c facing the substrate 2, the first electrode 51 is, for example, an n-pole, and the second electrode 52c is, for example, a p-pole, but not limited thereto. The second light-emitting element 42, for example, has a first electrode 53 and a second electrode 54 facing the substrate 2, the first electrode 53 is, for example, an n-pole, and the second electrode 54 is, for example, a p-pole, but not limited thereto.

[0035] like Figure 3B and Figure 4 As shown, in this embodiment, the third sub-pixel structure 33 includes a light-emitting element 41a and a third light-emitting element 43 stacked on the substrate 2 along the vertical direction. Among them, the light-emitting element 41a, for example, also has a first electrode 51 and a second electrode 52b facing the substrate 2, the first electrode 51 is, for example, an n-pole, and the second electrode 52b is, for example, a p-pole, but not limited thereto. The third light-emitting element 43, for example, has a first electrode 55 and a second electrode 56 facing the substrate 2, the first electrode 55 is, for example, an n-pole, and the second electrode 56 is, for example, a p-pole, but not limited thereto. In other words, the material types of the electrodes can also be interchanged.

[0036] Depend on Figure 3A and Figure 3B It can be seen that the relative relationship between the first electrode 53 and the second electrode 54 of the second light-emitting element 42 is different from the relative relationship between the first electrode 55 and the second electrode 56 of the third light-emitting element 43. Figure 3A In FIG. 4 , the first electrode 53 and the second electrode 54 of the second light emitting element 42 are located in the diagonal direction of the back side of the light emitting surface O2. Figure 3B In the embodiment, the first electrode 56 and the second electrode 55 of the third light emitting element 43 are located on the same side of the back side of the light emitting surface O1, but the present invention is not limited thereto. Figures 3A to 3BIt can be seen that the relative positions of the first electrode 51 and the second electrodes 52b and 52c on different light-emitting elements 41a of the first light-emitting element 41 can be changed according to needs, and can also be different from the relative position between the first electrode 52a and the second electrode 51 described later.

[0037] like Figure 3A and 4 As shown, in the second sub-pixel structure 32, the first electrode 54 of the second light-emitting element 42 located above the first light-emitting element 41 is electrically connected to the substrate 2 through the third electrical connection member 63, and the second electrode 53 is electrically connected to the substrate 2 through the second electrical connection member 62. The position of the second electrode 51 of the light-emitting element 41a, for example, corresponds to the position of the second electrode 53 of the second light-emitting element 42 and is located below the second electrode 53. The first electrode 52c is at a different position. The first electrode 52c of the light-emitting element 41a is electrically connected to the substrate 2 through the first electrical connection member 61, and the second electrode 51 is also electrically connected to the substrate 2 through the second electrical connection member 62. That is, the second electrodes 51 and 53 are configured as a common electrode.

[0038] Depend on Figure 4 It can be seen that in this embodiment, the specific shape of the second electrical connector 62 is, for example, a U-shape, one end of which is connected to the second electrode 53 of the second light-emitting element 42, and the other end is electrically connected to the second electrode 51 of the light-emitting element 41a and the substrate 2, and is located between the second electrode 51 of the light-emitting element 41a and the substrate 2.

[0039] From the above structure, it can be seen that although the light emitting element 41a in the second sub-pixel structure 32 and the second electrode 51 and the second electrode 53 of the second light emitting element 42 are electrically connected to each other, they can be individually controlled by whether the third electrical connection member 63 and the first electrical connection member 61 are turned on.

[0040] Similarly, if Figure 3B and Figure 4 As shown, the third sub-pixel structure 33 includes a light-emitting element 41a and a third light-emitting element 43 stacked on the substrate 2 along the vertical direction. The shape design and connection relationship of the light-emitting element 41a, the first electrical connection element 61, the second electrical connection element 62 and the third electrical connection element 63 in the third sub-pixel structure 33 can be compared with the design in the second sub-pixel structure 32, and will not be repeated here. Figure 3B and Figure 4 As shown, the third light emitting element 43 has, for example, a first electrode 56 and a second electrode 55 facing the substrate 2 . The second electrode 55 is, for example, an n-pole, and the first electrode 56 is, for example, a p-pole, but the present invention is not limited thereto.

[0041] like Figure 3B and 4As shown, in the third sub-pixel structure 33, the first electrode 56 of the third light-emitting element 43 located above the first light-emitting element 41 is connected to the substrate 2 through the third electrical connection member 63, and the second electrode 55 is electrically connected to the substrate 2 through the second electrical connection member 62. The position of the second electrode 51 of the light-emitting element 41a, for example, corresponds to the position of the second electrode 55 of the second light-emitting element 42 and is located below the second electrode 55. The first electrode 52a is at a different position. In this embodiment, the second electrodes 51 and 55 are configured as a common electrode.

[0042] From the above description, it can be known that although the light emitting element 41a and the third light emitting element 43 in the third sub-pixel structure 33 overlap each other, they can also be individually controlled by whether the third electrical connection element 63 and the first electrical connection element 61 are turned on, including the activation timing or brightness.

[0043] In addition, the positions of the first electrodes 52a, 52b, 52c, 54, 56 and the second electrodes 51, 53, 55 of the plurality of light-emitting elements 41a, the second light-emitting element 42 and the third light-emitting element 43 of the aforementioned first light-emitting element 41 can be changed according to the wiring requirements. For example, in another embodiment, the first electrode 52c and the second electrode 51 of the light-emitting element 41a in the second sub-pixel structure 32 can be located on the side of the light-emitting element 41a away from the substrate 2, and the light-emitting element 41a and the second light-emitting element 42 can be independently controlled by avoiding the electrical contact between the electrodes of the second light-emitting element 42 and the electrodes of the light-emitting element 41a, such as misalignment. Alternatively, in some embodiments, the first electrode 54 and the second electrode 53 of the second light-emitting element 42 can be directed toward the side away from the substrate 2, and the third electrical connector 63 and the second electrical connector 62 can be changed accordingly.

[0044] Through the above construction, Figure 2 In the first sub-pixel structure 31, the second sub-pixel structure 32 and the third sub-pixel structure 33 in the illustrated embodiment, since each light-emitting element 41a as the first light-emitting element 41 contacts the substrate 2 and is located at the same height (relative to the substrate 2), in manufacturing, all the light-emitting elements 41a as the first light-emitting element 41 can be set through the same process, and then the second light-emitting element 42 and the third light-emitting element 43 can be assembled through different second processes and third processes. And because the pixel structure 3 is divided into a plurality of sub-pixel structures, when a component in one of the sub-pixel structures is damaged, it can also be easily replaced by removing a single sub-pixel structure, so it has the advantages of simple manufacturing and easy maintenance.

[0045] FIG. 5A to FIG. 5C FIG. 4 is a schematic diagram of the combination of light-emitting elements in another embodiment of the present invention. Figure 6 For the general FIG. 5A to FIG. 5CA side view of the light-emitting elements after being combined into a pixel structure. Figure 6 The method of electrically connecting the first electrode 54, the first electrode 56, and the substrate 2 through the third electrical connection member 63 can refer to Figure 4 , so it is not shown in the figure but only described in words.

[0046] At FIG. 5A to FIG. 6 In the illustrated embodiment, the pixel structure 3' (not shown) includes, for example, a first sub-pixel structure 31', a second sub-pixel structure 32', and a third sub-pixel structure 33'. In this embodiment, the first light-emitting element 41' is divided into a plurality of light-emitting elements 41a' separated from each other, the first sub-pixel structure 31' is composed of a single light-emitting element 41a', the second sub-pixel structure 32' and the third sub-pixel structure 33' are respectively composed of a light-emitting element 41a', a second light-emitting element 42, and a third light-emitting element 43. The first electrodes 52a, 52b, 52c, and the second electrodes 51 of all the light-emitting elements 41a' are respectively located on opposite sides of the light-emitting element 41a', the first electrodes 52a, 52b, and 52c of the first light-emitting element 41' are, for example, facing the substrate 2, and the second electrode 51 is, for example, facing the side away from the substrate 2. The first electrode 54 (not shown), the first electrode 56 (not shown) and the second electrode 53 and the second electrode 55 of the second light emitting element 42 and the third light emitting element 43 are all facing the substrate 2. The second electrode 51 of the light emitting element 41a' and the second electrode 53 of the second light emitting element 42 or the second electrode 55 of the third light emitting element 43 are opposite to each other, and are both N poles, for example.

[0047] Depend on Figure 5A and Figure 5B It can be seen that the relative relationship between the first electrode 54 and the second electrode 53 of the second light-emitting element 42 is different from the relative relationship between the first electrode 56 and the second electrode 55 of the third light-emitting element 42. Figure 5A In FIG. 4 , the first electrode 54 and the second electrode 53 of the second light emitting element 42 are located in the diagonal direction of the back side of the light emitting surface of the light emitting element 41a′. Figure 5B In the embodiment, the first electrode 56 and the second electrode 55 of the third light emitting element 43 are located on the same side of the back side of the light emitting surface of the light emitting element 41 a ′, but the present invention is not limited thereto.

[0048] During assembly, the first electrode 51 of the second light emitting element 42 on the upper side of the second sub-pixel structure 32' is as shown in FIG. Figure 4 The embodiment is the same as that of the embodiment of the present invention, which is electrically connected to the substrate 2 (not shown) through the third electrical connection member 63. Figure 6As shown, the second electrode 52c is electrically connected to the substrate 2 through the second electrical connection member 62. The first electrode 51 of the light emitting element 41a' is connected to the substrate 2 through the first electrical connection member 61, and the second electrode 52c is connected to the substrate 2 through the second electrical connection member 62. In this embodiment, since the position of the first electrode 51 of the light emitting element 41a' corresponds to the position of the first electrode 51 of the second light emitting element 42 and is located below the first electrode 51, the second electrode 52c and the second electrode 52c are connected to the upper and lower sides of one end of the second electrical connection member 62, and in more detail, in this embodiment, one end of the second electrical connection member 62 is electrically connected to the substrate 2, and the upper and lower sides of the other end are connected to the second electrode 52c and the second electrode 52c respectively.

[0049] With the above structure, although the light emitting element 41a' and the second light emitting element 42 in the second sub-pixel structure 32' overlap each other, they can be individually controlled by whether the third electrical connection element 63 (not shown) and the first electrical connection element 61 are turned on, including the start-up timing or brightness.

[0050] Regarding the detailed design of the third sub-pixel structure 33', except that the relative relationship between the first electrode 56 and the second electrode 55 of the third light-emitting element 43 is different from the relative relationship between the first electrode 54 and the second electrode 53 of the second light-emitting element 42' in the second sub-pixel structure 32', the rest of the design can refer to the aforementioned design of the second sub-pixel structure 32', and therefore will not be elaborated here.

[0051] 7A to 7F This is a schematic diagram of the pixel structure of another embodiment of the present invention. Fig. 7A As shown, in Fig. 7A The pixel structure 3a shown in FIG. 1 is the same as that of the aforementioned Figure 2 The pixel structure 3 is therefore not described in detail.

[0052] exist Figure 7B In the pixel structure 3b of the embodiment shown, the first light emitting element 41 is, for example, a single light emitting element, and the light emitting surface O2 ( Figure 7B (not shown) and the light emitting surface O3 ( Figure 7B The sum of the areas of the first light emitting element 41 (not shown) is smaller than the light emitting surface O1 ( Figure 7B When assembled, the light emitting surface O1 ( Figure 7B Not shown) is directly divided into combined area S1 according to the position (due to the coverage, Figure 7B The second light emitting element 42 and the third light emitting element 43 are assembled on the assembly area S1.

[0053] exist Figure 7CIn the pixel structure 3c of the embodiment shown, the first light emitting element 41 is, for example, divided into two light emitting elements separated from each other and presenting a rectangular shape, and the light emitting surface O1 ( Figure 7C Not shown) is also divided into a combination area S1 ( Figure 7C The light emitting surface O2 (not shown) of the second light emitting element 42 is Figure 7C (not shown) and the light emitting surface O2 ( Figure 7C The area of ​​the first light emitting element 41 (not shown) is also smaller than the area of ​​the light emitting surface O1 of the first light emitting element 41. In other words, the pixel structure 3c is divided into two different sub-pixel structures, and the components connected to the first light emitting element 41 are different.

[0054] exist Fig.7D In the pixel structure 3d of the embodiment shown, the first light emitting element 41 is, for example, divided into two light emitting elements separated from each other, one of which is, for example, square in shape, and the other is, for example, polygonal in shape. Fig.7D not shown) is divided into a combination area S1 ( Fig.7D The light emitting surface O2 (not shown) of the second light emitting element 42 is Fig.7D Not shown), the light emitting surface O3 of the third light emitting element 43 ( Fig.7D The area of ​​the first light-emitting element 41 (not shown) is also smaller than the area of ​​the light-emitting surface O1 of the first light-emitting element 41. However, in the same pixel structure 3d, the ratio of the area A1 of the total light-emitting surface O1 of the first light-emitting element 41 and the area A2 of the total light-emitting surface of the second light-emitting element 42 plus the third light-emitting element 43 is still 2:1. In other words, the pixel structure 3c is divided into two different sub-pixel structures, one of which has other light-emitting elements, and the other sub-pixel structure does not have other light-emitting elements.

[0055] Please refer to Fig. 7E As shown, in Fig. 7E In the pixel structure 3e of the embodiment shown, the pixel structure 3e is, for example, divided into a first sub-pixel structure 31, a second sub-pixel structure 32 and a third sub-pixel structure 33. The detailed structures of the first sub-pixel structure 31, the second sub-pixel structure 32 and the third sub-pixel structure 33 can be referred to in the aforementioned Figure 2 or Figure 6 The embodiments are therefore not described in detail. Fig. 7E It can be seen that in the pixel structure 3e of the present embodiment, the light emitting surface O1 ( Fig. 7E The area A1 of the light emitting surface O2 of the second light emitting element 42 plus the light emitting surface O23 of the third light emitting element 43 (not shown) Fig. 7E The ratio of the total area A2 (not shown) becomes 3:2.

[0056] Please refer to Figure 7F As shown, in Figure 7F In the pixel structure 3f of the embodiment shown, the pixel structure 3f is, for example, divided into a second sub-pixel structure 32, a third sub-pixel structure 33 and two fourth sub-pixel structures 34, wherein the structures of the second sub-pixel structure 32 and the third sub-pixel structure 33 can refer to the above description and are not described in detail.

[0057] In this embodiment, the fourth sub-pixel structure 343 includes a light-emitting element distinguished by the first light-emitting element 41 and a fourth light-emitting element 44 located on the light-emitting element. The type of the fourth light-emitting element 44 is not limited, and it can be the same as one of the first light-emitting element 41, the second light-emitting element 42, and the third light-emitting element 43, or it can be a micro-LED that emits a fourth color light different from the first color light, the second color light, and the third color light.

[0058] Depend on Figure 7F It can be seen that, in some embodiments, when the type of the fourth light emitting element 44 is the same as the type of the second light emitting element 42 or the third light emitting element 43 , the aforementioned A1:A2 can be changed to 1:1.

[0059] From the above description, it can be seen that the display panel of the present invention is easy to manufacture and simple to maintain because each pixel structure therein has a first light-emitting element, a second light-emitting element and a third light-emitting element that emit light of different colors, and the second light-emitting element and the third light-emitting element are arranged on the light-emitting surface of the first light-emitting element to present a double-layer structure.

[0060] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A display panel, characterized in that: include: a substrate; A plurality of pixel structures are disposed on the substrate, each of the pixel structures comprises a first light emitting element, a second light emitting element and a third light emitting element, wherein: The first light-emitting element is disposed on the substrate and is suitable for generating a first color light. A light-emitting surface of the first light-emitting element includes a combination area. The second light emitting element is disposed on a portion of the combination area and is suitable for generating a second color light; The third light emitting element is disposed on another portion of the combination area and is suitable for generating a third color light.

2. The display panel according to claim 1, characterized in that The first light-emitting element, the second light-emitting element and the third light-emitting element each have a first electrode and a second electrode, and the first electrode and the second electrode are both facing the substrate. Each of the pixel structures further includes a plurality of first electrical connections and a plurality of second electrical connections, wherein: The first electrode and the second electrode of the first light-emitting element are electrically connected to the substrate respectively; The first electrodes of the second light emitting element and the third light emitting element are electrically connected to the substrate through the first electrical connecting members respectively; The second electrodes of the second light emitting element and the third light emitting element are electrically connected to the second electrode of the first light emitting element through the second electrical connecting members respectively.

3. The display panel according to claim 1, wherein: The second light-emitting element and the third light-emitting element each have a first electrode and a second electrode. The first electrode and the second electrode of the first light-emitting element are respectively located at two opposite sides of the first light-emitting element. The first electrode of the first light-emitting element faces the substrate. The first electrodes and the second electrodes of the second light-emitting element and the third light-emitting element all face the substrate. Each pixel structure further includes a plurality of first electrical connectors and a plurality of second connectors, wherein: The first electrode of the first light-emitting element is electrically connected to the substrate; The first electrodes of the second light emitting element and the third light emitting element are electrically connected to the substrate through the first electrical connecting members respectively; The second electrodes of the second light emitting element and the third light emitting element are electrically connected to the second electrode of the first light emitting element and the substrate through the second electrical connecting members respectively.

4. The display panel according to claim 1, wherein: The light emitting surface of the first light emitting element further includes a non-combination area.

5. The display panel according to claim 4, wherein: The combination area and the non-combination area are separated from each other.

6. The display panel according to claim 5, wherein: The combination area includes two sub-combination areas separated from each other. The second light emitting element and the third light emitting element are respectively arranged on the two sub-combination areas.

7. The display panel according to claim 6, wherein: The non-combination region includes a plurality of sub-non-combination regions separated from each other.

8. The display panel according to claim 7, wherein: The first light emitting element comprises a plurality of light emitting parts separated from each other, and the two sub-combination areas and the sub-non-combination areas are respectively light emitting surfaces of the light emitting parts.

9. The display panel according to claim 1, wherein: In the same pixel structure, the area of ​​the light emitting surface of the first light emitting element is A1, the sum of the area of ​​a light emitting surface of the second light emitting element and the area of ​​a light emitting surface of the third light emitting element is A2, and A1 is greater than or equal to A2.

10. The display panel according to claim 9, wherein: A1:A2 is 1:1, 2:1 or 3:

2.

11. The display panel according to claim 1, wherein: The first light emitting element, the second light emitting element and the third light emitting element are all micro light emitting diodes.

12. The display panel according to claim 1, wherein: The first color light is red light.

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