Light-emitting components, displays and electronic devices

Abstract

This disclosure relates to a light-emitting component, a display screen, and an electronic device. The light-emitting component includes multiple pixel definition sections and multiple light-emitting devices. The multiple pixel definition sections are arranged in an array, and the light-emitting devices are disposed in a cavity formed by adjacent pixel definition sections. The light-emitting component also includes a reflective section disposed in the cavity, wherein at least a portion of the light emitted by the light-emitting devices is reflected by the reflective section and then emitted outside the cavity, thereby extending the propagation path of the light. By providing a reflective section, the light-emitting component of this disclosure extends the propagation path of at least a portion of the light emitted by the light-emitting devices, which is equivalent to extending the length of the optical microcavity in which the light-emitting devices are located, enhancing the microcavity effect, increasing the gain of the optical microcavity, which is beneficial to improving the display effect and reducing the power consumption of the light-emitting component.

Description

Technical Field

[0001] This disclosure relates to the field of optical display technology, and more particularly to a light-emitting component, a display screen, and an electronic device. Background Technology

[0002] Currently, OLED (Organic Light-Emitting Diode) displays are widely used in electronic devices due to their advantages such as color gamut, fast response speed, and thin and light structure. However, in related technologies, light-emitting devices often suffer from problems such as low luminous efficiency and high power consumption. Utility Model Content

[0003] To overcome the problems existing in the related technologies, this disclosure provides a light-emitting component, a display screen, and an electronic device.

[0004] According to a first aspect of the present disclosure, a light-emitting component is provided, comprising:

[0005] Multiple pixel definitions, array settings;

[0006] Multiple light-emitting devices are disposed in cavities formed by adjacent pixel definition portions;

[0007] A reflective element is disposed in the cavity;

[0008] In this embodiment, at least a portion of the light emitted by the light-emitting device is reflected by the reflective part and then emitted outside the cavity, thereby extending the propagation path of the light.

[0009] In this embodiment of the disclosure, the light-emitting component extends the propagation path of at least part of the light emitted by the light-emitting device by setting a reflective part, which is equivalent to extending the length of the optical microcavity in which the light-emitting device is located, enhancing the microcavity effect, improving the gain of the optical microcavity, which is beneficial to improving the display effect and reducing the power consumption of the light-emitting component.

[0010] In one possible implementation, the reflective portion is disposed on the wall surface of the pixel definition portion, and the reflective portion includes at least one of a first reflective portion and a second reflective portion, wherein the first reflective portion is disposed on the wall surface of the pixel definition portion in a continuous laying manner, and the second reflective portion is disposed on the wall surface of the pixel definition portion in an intermittent manner.

[0011] In this embodiment, the reflective portion includes at least one of a first reflective portion and a second reflective portion. The first reflective portion is continuously disposed on the wall surface of the pixel defining portion, thereby reflecting light emitted by the light-emitting device over a large area and enhancing the optical microcavity effect. The second reflective portion is disposed at intervals on the wall surface of the pixel defining portion, allowing for flexible and varied placement to adjust the reflection effect at specific locations, which helps reduce costs. When the first and second reflective portions are combined, not only can the reflection effect of most light be enhanced over a large area, but the reflection effect can also be improved at certain specific locations, which helps to further increase the gain of the optical microcavity and improve the display effect.

[0012] In one possible implementation, the second reflective portion includes at least one reflective protrusion disposed on the wall surface.

[0013] In this embodiment of the disclosure, the reflective protrusion is used to increase the reflection path of the light emitted by the light-emitting device, thereby effectively extending the propagation path of the light and increasing the optical microcavity length of the light-emitting device, thereby enhancing the microcavity effect of the light-emitting device.

[0014] In one possible implementation, the reflective protrusion includes at least one of the following: serrated protrusion, wavy protrusion, trapezoidal protrusion, square protrusion, frustum protrusion, hemispherical protrusion, spherical protrusion, and conical protrusion.

[0015] In this embodiment of the disclosure, by designing the shape of the reflective protrusion, a better light reflection effect can be achieved, thereby enhancing the microcavity effect of the light-emitting device, so as to improve the light extraction efficiency and display effect of the light-emitting device and reduce power consumption.

[0016] In one possible implementation, the first reflective portion includes a reflective layer disposed on the wall surface, the reflective layer including an arc surface and / or an inclined plane.

[0017] In this embodiment of the disclosure, by setting the reflective part as a reflective layer disposed on the wall surface, the reflective layer includes an arc surface and / or an inclined plane, so as to increase the amount of reflected light and extend the propagation path of light, thereby enhancing the microcavity effect of the light-emitting device, improving the light extraction efficiency, and reducing the power consumption of the light-emitting device.

[0018] In one possible implementation, the inclined plane is inclined toward the center of the light-emitting device.

[0019] In this embodiment of the disclosure, by setting the inclined plane to be tilted towards the center of the light-emitting device, the light emitted by the light-emitting device is reflected, the propagation path of the light is extended, and the reflected light has a certain focusing effect, which can further improve the light emission efficiency and display brightness, and help reduce power consumption.

[0020] In one possible implementation, the curved surface is bent toward the center of the light-emitting device.

[0021] In this embodiment of the disclosure, by setting the reflective layer to include an arc surface that bends away from the center of the light-emitting device, the light emitted by the light-emitting device is reflected. This also helps to further extend the propagation path of the light, increases the length of the microcavity, thereby enhancing the microcavity effect of the light-emitting device, improving the light extraction efficiency and display brightness, and helping to reduce the power consumption of the light-emitting device.

[0022] In one possible implementation, the arc of the surface is greater than 0° and less than 180°.

[0023] In this embodiment of the disclosure, the shape of the arc surface is between that of a plane and a hemispherical arc surface, which can reflect the light emitted by the light-emitting device, thereby enhancing the light emission efficiency and reducing power consumption.

[0024] In one possible implementation, the reflective layer is provided with a textured structure.

[0025] In this embodiment of the disclosure, by setting a texture structure, the area of ​​the reflective region can be indirectly increased, the light reflection effect can be improved, and the propagation path of the light can be further extended, which is beneficial to enhancing the microcavity effect of the light-emitting device, improving the light extraction efficiency, and reducing the power consumption of the light-emitting device.

[0026] According to a second aspect of the present disclosure, a display screen is provided, including a light-emitting component as described in the first aspect of the present disclosure.

[0027] In this embodiment of the disclosure, the display screen includes the above-mentioned light-emitting component. By providing a reflective part, the light-emitting component extends the propagation path of at least part of the light emitted by the light-emitting device, which is equivalent to extending the length of the optical microcavity of the light-emitting device. This increases the gain of the optical microcavity, enhances the microcavity effect, and is beneficial for enhancing the light emitted by the light-emitting device, thereby improving the light extraction efficiency and display effect. At the same time, since the light extraction efficiency of the light-emitting device is improved, the power consumption of the display screen can also be reduced when the required display brightness is achieved.

[0028] According to a third aspect of the present disclosure, an electronic device is provided, the electronic device including a display screen as described in a second aspect of the present disclosure or a light-emitting component as described in a first aspect of the present disclosure.

[0029] In this embodiment of the disclosure, the electronic device includes a display screen or a light-emitting component as described above. The light-emitting component is provided with a reflective part, which extends the propagation path of at least part of the light emitted by the light-emitting device. This is equivalent to extending the length of the optical microcavity of the light-emitting device, thereby increasing the gain of the optical microcavity, enhancing the microcavity effect, which is beneficial to improving the display effect, and thus reducing the power consumption of the light-emitting component.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0032] Figure 1 This is a schematic diagram of the structure of a light-emitting component in related technologies.

[0033] Figure 2 This is a schematic diagram of the structure of a light-emitting component according to a first exemplary embodiment.

[0034] Figure 3 This is a schematic diagram of the structure of a light-emitting component according to a second exemplary embodiment.

[0035] Figure 4 This is a schematic diagram of the structure of a light-emitting component according to a third exemplary embodiment.

[0036] Figure 5 This is a schematic diagram of the structure of a light-emitting component according to a fourth exemplary embodiment.

[0037] Figure 6 This is a schematic diagram of the structure of a light-emitting component according to a fifth exemplary embodiment.

[0038] Figure 7 This is a schematic diagram of the structure of a light-emitting device according to an exemplary embodiment. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0040] Currently, OLED displays are widely used in electronic devices due to their advantages such as color gamut, fast response speed, and thin and light structure. However, in related technologies, light-emitting devices often suffer from low luminous efficiency and high power consumption.

[0041] To address the aforementioned technical problems, this disclosure provides an embodiment of a light-emitting component, a display screen, and an electronic device. The light-emitting component extends the propagation path of at least a portion of the light emitted by the light-emitting device by providing a reflective portion, which is equivalent to extending the length of the optical microcavity where the light-emitting device is located, enhancing the microcavity effect, increasing the gain of the optical microcavity, which is beneficial for improving the display effect and reducing the power consumption of the light-emitting component.

[0042] According to an exemplary embodiment, such as Figures 2-7 As shown, this disclosure provides a light-emitting component that can be applied to an OLED (Organic Light-Emitting Diode) display screen. For ease of understanding and explanation, this disclosure uses a light-emitting component applied to an OLED display screen as an example. Of course, it is understood that the light-emitting component can also be applied to various types of displays such as LED (Light-Emitting Diode) displays, and this disclosure does not impose excessive limitations on this.

[0043] OLED displays can improve light extraction efficiency and reduce power consumption through the microcavity effect. An optical microcavity is an optical resonant cavity structure with a size on the order of light wavelength. When light propagates within a microcavity, reflection and interference occur at its boundaries. Because the size of the microcavity is close to the wavelength of light, only light of specific wavelengths and modes can form stable standing waves within the microcavity, thus being enhanced, while other light that does not meet the conditions is suppressed. This phenomenon is called the microcavity effect.

[0044] The gain formula for an optical microcavity depends on factors such as the specific structure of the microcavity, material properties, and light propagation characteristics. Specifically, the following formula describes the gain of an optical microcavity:

[0045]

[0046] Where: G represents the gain of the microcavity, R1 and R2 represent the reflectivities of the mirrors at both ends of the microcavity, e is the natural constant, α is the absorption coefficient of the medium (e.g., air) inside the microcavity, and L is the length of the microcavity. The above formula describes the influence of factors such as reflection by the mirrors and absorption by the medium on the gain of the microcavity during its round-trip propagation within the microcavity. The higher the reflectivities R1 and R2, the smaller the absorption coefficient α, and the longer the microcavity length L, the greater the gain G of the microcavity.

[0047] In related technologies, such as Figure 1 As shown, the light emitted by the light-emitting device 20' exits the cavity 101' formed by the pixel definition section 10'. Due to the relatively dispersed light, the light extraction efficiency of the light-emitting device 20' is poor, resulting in poor display brightness. When improving the light extraction efficiency through the microcavity effect, the length of the microcavity mainly depends on the thickness between the cathode and anode of the light-emitting device 20'. Therefore, the main way to adjust the microcavity effect is to change the path of the light by adjusting the thickness of each film layer in the light-emitting device 20', thereby changing the length L of the microcavity in the above formula, and thus adjusting the gain of the microcavity to improve the light extraction efficiency. However, due to the limitations of the design size, the technical solution using related technologies has a limited impact on the microcavity gain and cannot achieve a more ideal light extraction efficiency. As a result, in order to achieve the required display effect, the light-emitting device 20' needs to maintain a high power consumption.

[0048] like Figures 2-7 As shown, the light-emitting component of this embodiment includes multiple pixel definition sections 10 and multiple light-emitting devices 20. The pixel definition section 10, also known as the PDL (Pixel Definition Layer) in an OLED device, is typically a polymer material, such as PSPI (Photosensitive Polyimide), and is mainly used to separate and define the light-emitting devices 20, ensuring that the light-emitting material is precisely deposited in a designated area, while preventing crosstalk or leakage between adjacent light-emitting devices 20. The multiple pixel definition sections 10 are arranged in an array, and each light-emitting device 20 is disposed in a cavity 101 formed by two adjacent pixel definition sections 10. This cavity 101 constitutes an optical microcavity. Referring to the gain formula of the optical microcavity mentioned above, the structure in the cavity 101 can be improved, for example, by adjusting the length L of the microcavity or adjusting the reflectivity to increase the gain G of the microcavity, thereby improving the light-emitting effect of the OLED display device. Of course, it is understood that multiple light-emitting devices 20 can also be disposed in the same cavity 101, and this embodiment does not impose excessive limitations on this.

[0049] The light-emitting component also includes a reflective portion 30, which is disposed within the cavity 101 and is used to perform specular reflection of light incident upon it. At least a portion of the light emitted by the light-emitting device 20 is reflected by the reflective portion 30 and then emitted outside the cavity 101, thereby extending the propagation path of the light. Since the propagation path of at least a portion of the light emitted by the light-emitting device 20 is lengthened, it is equivalent to extending the length L of the optical microcavity of the light-emitting device 20, thereby increasing the gain of the optical microcavity, enhancing the microcavity effect, which is beneficial for enhancing the light emitted by the light-emitting device 20, improving the light extraction efficiency and display effect. At the same time, since the light extraction efficiency of the light-emitting device 20 is improved, the power consumption to achieve the required display brightness can also be reduced.

[0050] The reflective part 30 can be disposed on the wall 11 of the pixel definition part 10, which is simpler, more convenient, and easier to operate. Alternatively, a connecting structure (not shown in the figure) can be provided to connect the pixel definition part 10 and the reflective part 30, so that the reflective part 30 is at least partially suspended in the cavity 101. This arrangement is more flexible and the position of light reflection can be adjusted as needed. The connecting structure can be, for example, a connecting bracket disposed on the top surface of the pixel definition part 10, with the reflective part 30 fixed to the connecting bracket, which supports and positions the reflective part 30 within the cavity 101. It is understood that this embodiment does not impose excessive restrictions on the specific position and manner of the reflective part 30 within the cavity 101, as long as the reflective part 30 can reflect at least a portion of the light emitted by the light-emitting device 20, thereby extending the propagation path of the light.

[0051] In this embodiment, the light-emitting component is provided with a reflective part 30. All or part of the light emitted by the light-emitting device 20 will illuminate the reflective part 30, and after specular reflection by the reflective part 30, it will be emitted to the outside of the cavity 101. Compared to... Figure 1 Regarding the scheme shown in the related technology where the light emitted by the light-emitting device 20' is emitted directly without reflection, by setting the reflector 30, the light is reflected at least once before being emitted to the outside of the cavity 101. This extends the propagation path of some or all of the light emitted by the light-emitting device 20, which is equivalent to extending L (i.e., the length of the microcavity) in the aforementioned gain formula of the optical microcavity. In other words, it increases the length of the optical microcavity where the light-emitting device 20 is located, thereby improving the gain of the optical microcavity, enhancing the microcavity effect of the light-emitting device 20, which is beneficial to improving the display effect of the light-emitting component and reducing the power consumption of the light-emitting component. In particular, by adjusting the setting position of the reflector 30, the light can be reflected by one reflector 30 and then irradiated by another reflector 30, and then reflected again before being emitted out of the cavity. Of course, it is understood that by adjusting the position, number, area, etc. of the reflector 30, the same beam of light can be emitted multiple times before being emitted out of the cavity, not limited to one or two reflections.

[0052] In some embodiments, the reflective portion 30 is disposed on the wall surface of the pixel defining portion 10, which may be the top surface of the pixel defining portion 10 or the side wall surface 11 of the pixel defining portion. The reflective portion 30 includes a first reflective portion and a second reflective portion. The first reflective portion is disposed continuously on the wall surface of the pixel defining portion 10, and the second reflective portion is disposed at intervals on the wall surface of the pixel defining portion 10. Multiple second reflective portions may be provided, or only one may be provided. Multiple second reflective portions are spaced apart by a certain distance, thereby allowing the second reflective portions to be disposed in certain specific areas of the pixel defining portion 10 to achieve a specific reflection effect. The first reflective portion may cover a portion or the entire area of ​​the wall surface of the pixel defining portion 10, thereby reflecting the light emitted by the light-emitting device over a larger area to enhance the light reflection effect.

[0053] In one example, the reflective portion 30 increases the area of ​​the reflective region on the sidewall surface 11 by continuously laying out the reflective portion 30 to reflect the light emitted by the light-emitting device 20. For example, by appropriately increasing the size of the pixel defining portion 10, the area of ​​the reflective region on the sidewall surface 11 of the pixel defining portion 10 can be increased, thereby improving the reflection effect of the light emitted by the light-emitting device 20, so as to extend the propagation path of the light, improve the light extraction efficiency, and reduce power consumption.

[0054] In another example, the reflective portion 30 reflects the light emitted by the light-emitting device 20 by adjusting the shape of the reflective area on the sidewall 11. For example... Figure 3 As shown, by adjusting the shape of the reflective area of ​​the sidewall 11, for example by setting the sidewall 11 as an arc surface, the light emitted by the light-emitting device 20 is reflected and converged towards the center of the cavity 101, thereby improving the light emission efficiency of the light-emitting device 20.

[0055] In another example, the reflector 30 reflects the light emitted by the light-emitting device 20 by increasing the area of ​​the reflective region on the sidewall 11 and adjusting the shape of the reflective region on the sidewall 11. When the shape, size, and other parameters of the sidewall 11 are adjusted, the area and shape of the reflective region on the sidewall 11 will also change accordingly, which helps to better extend the propagation path of the light and enhance the microcavity effect on the light-emitting device 20.

[0056] In another example, the light emitted by the light-emitting device 20 can be reflected by setting second reflective parts at intervals on the side wall 11. The second reflective parts can be multiple independent structures with reflective functions, such as protrusions or depressions set on the side wall 11, and the surfaces of the protrusions or depressions have reflective functions.

[0057] In another example, a first reflective part and a second reflective part can be provided on the side wall 11 at the same time. This increases the reflective area on the side wall 11 to reflect more light, and the second reflective part can be provided at a specific position to reflect light at that specific position.

[0058] In this embodiment of the present disclosure, the reflective part 30 reflects the light emitted by the light-emitting device 20 by at least one of increasing the area of ​​the reflective region on the side wall 11 and adjusting the shape of the reflective region on the side wall 11, thereby improving the reflection effect of the light emitted by the light-emitting device 20, extending the propagation path of the light, improving the light extraction efficiency of the light-emitting device 20, and thus helping to reduce the power consumption of the light-emitting device 20.

[0059] In some embodiments, the second reflective portion includes at least one reflective protrusion 31 disposed on the sidewall surface 11. For example... Figure 2 As shown, reflective protrusions 31 are disposed on the sidewall surface 11. At least one reflective protrusion 31 may be evenly distributed across the entire sidewall surface 11, or it may be disposed only in a portion of the sidewall surface 11. This embodiment does not impose excessive limitations on this. In this embodiment, the reflective protrusions 31 are used to increase the reflection path of light emitted by the light-emitting device 20, thereby effectively extending the propagation path of the light and increasing the optical microcavity length of the light-emitting device 20, thus enhancing the microcavity effect of the light-emitting device 20.

[0060] In one example, the reflective protrusion 31 includes at least one of the following: a sawtooth protrusion, a wavy protrusion, a trapezoidal protrusion, a square protrusion, a frustum protrusion, a hemispherical protrusion, a spherical protrusion, and a conical protrusion. In this embodiment of the disclosure, by designing the shape of the reflective protrusion 31, a better light reflection effect can be achieved, thereby enhancing the microcavity effect on the light-emitting device 20, and ultimately improving the light extraction efficiency and display effect of the light-emitting device 20 while reducing power consumption.

[0061] In some embodiments, the first reflective portion includes a reflective layer 32 disposed on the sidewall surface 11, the reflective layer 32 including an arcuate surface 322 and / or an inclined plane 321. In one example, such as Figure 4 As shown, the reflective layer 32 includes a tilted plane 321. In another example, as... Figures 5-6 As shown, the reflective layer 32 includes an arc surface 322. In another example, the reflective layer 32 may also include an inclined plane 321 and an arc surface 322; for example, the surface of the reflective layer 32 may be partially an inclined plane and partially an arc surface. This disclosure does not impose excessive restrictions on the specific shape of the reflective layer 32, as long as it ensures that the reflective layer 32 can reflect the light emitted by the light-emitting device 20 to extend the propagation path of the light. It is understood that... Figure 5 and Figure 6The structure shown in the figure has a reflective layer 32 disposed on the sidewall surface 11. In some embodiments, the reflective layer 32 may extend from the sidewall surface 11 to above the top surface of the pixel definition portion 10, and may cover at least part of the top surface of the pixel definition portion 10.

[0062] The reflective layer 32 can be a metal layer disposed on the side wall 11 by means of lay-up, spraying or other methods. The metal layer can reflect the light emitted by the light-emitting device 20 in a mirror manner. The metal layer can be made of highly reflective metal materials such as silver, magnesium or titanium. The specific material of the metal layer of the reflective layer 32 is not limited in this embodiment.

[0063] In this embodiment of the present disclosure, the reflective part 30 is configured as a reflective layer 32 disposed on the side wall surface 11. The reflective layer 32 includes an arc surface 322 and / or an inclined plane 321, so as to reflect the light emitted by the light-emitting device 20 through the reflective layer 32, extend the propagation path of the light, thereby enhancing the microcavity effect of the light-emitting device 20, improving the light extraction efficiency, and reducing the power consumption of the light-emitting device 20.

[0064] In some embodiments, such as Figure 4 As shown, the inclined plane 321 is inclined toward the center of the light-emitting device 20. In this embodiment of the present disclosure, by setting the inclined plane 321 to be inclined toward the center of the light-emitting device 20, the light emitted by the light-emitting device 20 is reflected, the propagation path of the light is extended, and the reflected light has a certain focusing effect, which can further improve the light emission efficiency and display brightness, and help reduce power consumption.

[0065] In some embodiments, such as Figures 5-6 As shown, the curved surface 322 bends away from the center of the light-emitting device 20. Of course, it is understandable that the curved surface 322 can also bend towards the center of the light-emitting device 20. Although the light-gathering effect is reduced compared to the scheme of bending away from the center of the light-emitting device 20, the effect of extending the light propagation path can still be achieved by reasonably designing the shape and curvature of the curved surface 322.

[0066] In this embodiment of the present disclosure, by setting the reflective layer 32 to include an arc surface 322 that bends toward the center of the light-emitting device 20, the light emitted by the light-emitting device 20 is reflected, which also helps to further extend the propagation path of the light, increases the length of the microcavity, thereby enhancing the microcavity effect of the light-emitting device 20, improving the light extraction efficiency and display brightness, and helping to reduce the power consumption of the light-emitting device 20.

[0067] In one example, the curvature of the arc surface 322 is greater than 0° and less than 180°. When the shape of the arc surface 322 is between a plane and a hemispherical arc surface, it can reflect the light emitted by the light-emitting device 20, thereby enhancing the light emission efficiency and reducing power consumption.

[0068] In one example, to further enhance the reflection effect of the curved surface 322 on the light emitted by the light-emitting device 20, the curved surface 322 can be set to an arc greater than 30° and less than 150°.

[0069] In one example, the curvature of the arc surface 322 can be 30°. In another example, the curvature of the arc surface 322 can be 60°. In yet another example, the curvature of the arc surface 322 can be 90°. Of course, it is understood that the curvature of the arc surface 322 is not limited to the angles listed above in the embodiments of this disclosure, and the embodiments of this disclosure do not impose excessive limitations on it.

[0070] In some embodiments, the reflective layer 32 is further provided with a textured structure (not shown in the figure). In this embodiment of the present disclosure, by providing a textured structure, the area of ​​the reflective region can be indirectly increased, the light reflection effect can be improved, and the propagation path of the light can be further extended, which is beneficial to enhancing the microcavity effect of the light-emitting device 20, improving the light extraction efficiency, and reducing the power consumption of the light-emitting device 20.

[0071] In one example, the texture structure may include one or a combination of shapes such as stripes, waves, jagged edges, and dot matrix. Those skilled in the art may also set the texture structure to other shapes to extend the light propagation path. The embodiments of this disclosure do not impose too many restrictions on the specific shape of the texture structure.

[0072] In some embodiments, the light-emitting device 20 includes a multilayer structure. For example... Figure 7 As shown, along Figures 2-6 The direction in which the light emitted from the light-emitting device 20 is, i.e. Figure 7 As shown in the bottom-to-top direction, the light-emitting device 20 includes an anode layer 21, a hole transport layer 22, a light-emitting layer 23, an electron transport layer 24, a cathode layer 25, and an encapsulation layer 26 stacked sequentially.

[0073] According to an exemplary embodiment, such as Figures 2-7 As shown, this disclosure provides a display screen, which may be, for example, an OLED display screen. Of course, it is understood that the display screen may also be an LED display screen or other types of display screens in which each pixel can emit light independently. This disclosure does not impose too many restrictions on this type of display screen.

[0074] The display screen includes a light-emitting component as described in the above embodiment. The light-emitting component includes a plurality of pixel defining portions 10 and a plurality of light-emitting devices 20. The plurality of pixel defining portions 10 are arranged in an array, and the light-emitting devices 20 are disposed within a cavity 101 formed by two adjacent pixel defining portions 10. The light-emitting component also includes a reflective portion 30 disposed within the cavity 101. At least a portion of the light emitted by the light-emitting devices 20 is reflected by the reflective portion 30 and exits outside the cavity 101, thereby extending the propagation path of the light.

[0075] In this embodiment of the disclosure, the display screen includes the above-mentioned light-emitting component. By providing a reflective part 30, the light-emitting component extends the propagation path of at least part of the light emitted by the light-emitting device 20, thereby extending the length of the optical microcavity and enhancing the microcavity effect. This is beneficial for enhancing the light emitted by the light-emitting device 20, improving the light extraction efficiency and display effect. At the same time, since the light extraction efficiency of the light-emitting device 20 is improved, the power consumption of the display screen can also be reduced when the required display brightness is achieved.

[0076] According to an exemplary embodiment, such as Figures 2-7 As shown, this disclosure provides an electronic device, which may be, for example, a mobile terminal, tablet computer, laptop computer, smartwatch, smart bracelet, or other electronic device with display function. The electronic device includes a display screen or light-emitting component as described in the above embodiments.

[0077] The light-emitting component includes multiple pixel definition sections 10 and multiple light-emitting devices 20. The multiple pixel definition sections 10 are arranged in an array, and the light-emitting devices 20 are disposed in a cavity 101 formed by two adjacent pixel definition sections 10. The light-emitting component also includes a reflective section 30, which is disposed within the cavity 101. At least a portion of the light emitted by the light-emitting devices 20 is reflected by the reflective section 30 and then emitted outside the cavity 101, thereby extending the propagation path of the light.

[0078] In this embodiment of the disclosure, the electronic device includes a display screen or light-emitting component as described above. By providing a reflective part 30 in the light-emitting component, the light propagation path of the light-emitting device 20 is extended, which is equivalent to extending the length of the optical microcavity where the light-emitting device 20 is located, thereby enhancing the microcavity effect of the light-emitting device 20, which is beneficial to improving the display effect and reducing the power consumption of the light-emitting component.

[0079] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0080] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited by the appended claims.

Claims

1. A light emitting assembly, characterized by include: Multiple pixel definitions, array settings; Multiple light-emitting devices are disposed in cavities formed by adjacent pixel definition portions; A reflective element is disposed in the cavity; In this embodiment, at least a portion of the light emitted by the light-emitting device is reflected by the reflective part and then emitted outside the cavity, thereby extending the propagation path of the light.

2. The light emitting assembly of claim 1, wherein, The reflective portion is disposed on the wall surface of the pixel definition portion. The reflective portion includes at least one of a first reflective portion and a second reflective portion. The first reflective portion is disposed on the wall surface of the pixel definition portion in a continuous laying manner, and the second reflective portion is disposed on the wall surface of the pixel definition portion in an intermittent manner.

3. The light emitting assembly of claim 2, wherein, The second reflective portion includes at least one reflective protrusion disposed on the wall surface.

4. The light emitting assembly of claim 3, wherein, The reflective protrusions include at least one of the following: serrated protrusions, wavy protrusions, trapezoidal protrusions, square protrusions, frustum protrusions, hemispherical protrusions, spherical protrusions, and conical protrusions.

5. The light emitting assembly of claim 2, wherein, The first reflective portion includes a reflective layer disposed on the wall surface, the reflective layer including an arc surface and / or an inclined plane.

6. The light emitting assembly of claim 5, wherein, The inclined plane is inclined toward the center of the light-emitting device.

7. The light emitting assembly of claim 5, wherein, The curved surface bends away from the center of the light-emitting device.

8. The light emitting assembly of claim 7, wherein, The curvature of the arc surface is greater than 0° and less than 180°.

9. The light emitting assembly of claim 5, wherein, The reflective layer has a textured structure.

10. A display screen, characterized by Includes the light-emitting component as described in any one of claims 1 to 9.

11. An electronic device, comprising: The electronic device includes a display screen as claimed in claim 10 or a light-emitting component as claimed in any one of claims 1 to 9.

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