Display panel and electronic device

Abstract

The application discloses a display panel and an electronic device. The display panel comprises a substrate, a light-emitting layer, an optical layer and a texture layer which are sequentially stacked. The optical layer is used for bonding the light-emitting layer and the texture layer and for blocking light reflected by the light-emitting layer. In the above scheme, the optical layer can replace the role of a polaroid used for reducing natural light reflection in a traditional panel, and the polaroid does not need to be additionally arranged, so that the overall thickness of the display panel can be reduced and the light transmittance of the display panel can be improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display panel and electronic device. Background Technology

[0002] With the development of display technology, the market demand for decorative film displays is increasing. They are widely used in the automotive and smart home fields. However, when using low-transmittance decorative films, the transmittance of OLED (Organic Light-Emitting Diode) screens still needs to be improved, and the overall thickness of OLED screens using polarizers also needs to be reduced. Summary of the Invention

[0003] The purpose of this application is to provide a display panel and electronic device that can reduce the thickness of the display panel and increase its light transmittance.

[0004] To achieve the above objectives, the technical solution provided in this application is: a display panel, comprising a substrate, a light-emitting layer, an optical layer and a texture layer stacked sequentially; wherein the optical layer is used to adhere the light-emitting layer and the texture layer, and to block light reflected by the light-emitting layer.

[0005] This application also provides an electronic device, including the display panel described above.

[0006] The beneficial effects are as follows: The display panel and electronic device provided in this application include a substrate, a light-emitting layer, an optical layer and a texture layer stacked in sequence. The light-emitting layer is used to emit light, the texture layer is used to form textures and patterns on the light-emitting side surface of the display panel to achieve a decorative effect, and the optical layer is used to bond the light-emitting layer and the texture layer and to block the light reflected by the light-emitting layer. Therefore, the optical layer can replace the function of the polarizer used to reduce the reflection of natural light in the traditional panel, and there is no need to set an additional polarizer. Therefore, the overall thickness of the display panel can be reduced and the light transmittance of the display panel can be improved. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0008] Figure 1 This is a cross-sectional view of the display panel provided in the embodiment of this application;

[0009] Figure 2 This is a cross-sectional view of the light-emitting layer in the display panel provided in the embodiments of this application;

[0010] Figure 3 yes Figure 1 An enlarged view of an embodiment of the optical layer in a display panel;

[0011] Figure 4 yes Figure 1 The display panel adopts Figure 2 The light-emitting layer and Figure 3 A cross-sectional view behind the optical layer;

[0012] Figure 5 yes Figure 1 An enlarged view of another embodiment of the optical layer in a display panel;

[0013] Figure 6 yes Figure 1 The display panel adopts Figure 2 The light-emitting layer and Figure 5 A cross-sectional view behind the optical layer;

[0014] Figure 7 yes Figure 1 An enlarged view of yet another embodiment of the optical layer in a display panel;

[0015] Figure 8 yes Figure 1 The display panel adopts Figure 2 The light-emitting layer and Figure 7 A cross-sectional view behind the optical layer;

[0016] Figure 9 This is another cross-sectional view of the display panel provided in the embodiments of this application;

[0017] Figure 10 This is another cross-sectional view of the display panel provided in the embodiments of this application.

[0018] The reference numerals in the figures include:

[0019] Display panel 100

[0020] Substrate 110

[0021] Light-emitting layer 120

[0022] Light-emitting unit 121

[0023] Anode layer 1212

[0024] Organic light-emitting material layer 1213

[0025] Cathode layer 1214

[0026] Pixel definition layer 122

[0027] Encapsulation layer 123

[0028] Optical layer 130

[0029] Optical adhesive layer 131

[0030] First optical layer 133

[0031] Second optical layer 134

[0032] 135mm light-transmitting aperture

[0033] Sub-light-transmitting port 1350

[0034] Texture layer 140

[0035] 150g silicone pressure-sensitive adhesive

[0036] Shielding protective film 160

[0037] Composite tape 170

[0038] Hardened layer 180 Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0040] It should be noted that the terms "first" and "second" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0041] OLED screens are a self-emissive display technology widely used in high-end electronic devices. They work by using an electric field to drive organic light-emitting materials to emit light. However, OLED screens have an inherent problem: ambient light reflection. When natural light shines on an OLED screen, it passes through the encapsulation layer and reaches the metal cathode. The metal cathode, like a silver, reflective foil, reflects the natural light back. This results in a significant decrease in display quality and contrast under strong ambient light, such as outdoor sunlight, making the screen difficult to see.

[0042] Traditional OLED screens address this issue by using a polarizer (POL). By blocking reflected light, the polarizer improves the contrast of the OLED screen, making the display clearer.

[0043] Furthermore, with the development of display technology, the market demand for decorative film displays is increasing, with widespread applications in automotive and smart home fields. However, when using low-transmittance decorative films, the light transmittance of the display still needs to be improved. Additionally, the thickness of polarizers is typically between 30 and 100 micrometers, resulting in a relatively thick display panel, and the overall thickness of the display panel also needs to be reduced.

[0044] Therefore, in order to reduce the thickness of the display panel and improve its light transmittance, this application provides a display panel that replaces the polarizer with an optical layer that simultaneously provides adhesive properties and reduces natural light reflection, thereby reducing the thickness of the display panel and improving its light transmittance. In some embodiments, the display device can be an OLED (Organic Light-Emitting Diode) display device or an AMOLED (Active Matrix Organic Light-Emitting Diode) display device. The structure of the display panel provided in this application and the principles for reducing the thickness of the display panel and improving its brightness performance are described in detail below with reference to the accompanying drawings.

[0045] Please see Figure 1 , Figure 1 This is a cross-sectional view of a display panel provided in an embodiment of this application. The display panel 100 includes a substrate 110, a light-emitting layer 120, an optical layer 130, and a texture layer 140 stacked sequentially. The optical layer 130 is used to adhere the light-emitting layer 120 and the texture layer 140, and to block the light reflected by the light-emitting layer 120.

[0046] The substrate 110 serves as a support layer for housing the light-emitting layer 120, enabling the display panel 100 to maintain its stable shape. In one embodiment, the substrate 110 includes a substrate and an array layer. The array layer includes a driving circuit for driving the light-emitting unit 121 to emit light. The driving circuit may be, for example, a 7T1C circuit.

[0047] The light-emitting layer 120 is used to emit light. For example, the light-emitting layer 120 can be an OLED light-emitting layer 120. The overall thickness of the substrate 110 and the light-emitting layer 120 can be 30 micrometers to 40 micrometers, for example, 30 micrometers, 34 micrometers, 38 micrometers or 40 micrometers.

[0048] The optical layer 130 is used to adhere the light-emitting layer 120 and the textured layer 140, and also to block light reflected by the light-emitting layer 120. Because the optical layer 130 blocks light reflected by the light-emitting layer 120, it can replace the polarizer used in traditional panels to reduce natural light reflection, eliminating the need for an additional polarizer inside the display panel 100. In other words, the optical layer 130 simultaneously functions as both an adhesive and a traditional polarizer, effectively combining the adhesive layer and polarizer in a traditional display panel into one. The thickness of the optical layer 130 can range from 25 micrometers to 75 micrometers, for example, 25 micrometers, 40 micrometers, 50 micrometers, 60 micrometers, and 75 micrometers.

[0049] The texture layer 140 serves a decorative function on the display side of the display panel 100. For example, it can make the display panel 100 display a certain texture or pattern, such as wood grain, when the screen is on or off, providing users with a richer sensory experience. The texture layer 140 can be made using ink. The thickness of the texture layer 140 can be between 200 micrometers and 300 micrometers, such as 200 micrometers, 220 micrometers, 250 micrometers, 280 micrometers, or 300 micrometers.

[0050] As can be seen, the display panel 100 provided in this application embodiment includes a substrate 110, a light-emitting layer 120, an optical layer 130, and a texture layer 140. The texture layer 140 serves as a decoration on the display side of the display panel 100. The optical layer 130 is used to adhere the light-emitting layer 120 and the texture layer 140, and to block at least a portion of the light reflected by the light-emitting layer 120. Therefore, the optical layer 130 can replace the function of the polarizer used to reduce the reflection of natural light in a traditional panel, eliminating the need for an additional polarizer. This reduces the overall thickness of the display panel 100 and increases its light transmittance.

[0051] In some embodiments, please refer to Figure 2 , Figure 2 This is a cross-sectional view of the light-emitting layer 120 in the display panel 100 provided in this application embodiment. The light-emitting layer 120 includes light-emitting units 121. The light-emitting units 121 of the light-emitting layer 120 are used to emit monochromatic light. Generally speaking, there are multiple light-emitting units 121 in the light-emitting layer 120. For example, the light-emitting unit 121 can be an OLED light-emitting unit.

[0052] A single light-emitting unit 121 may include an anode layer 1212, an organic light-emitting material layer 1213, and a cathode layer 1214. The organic light-emitting material layer 1213 is configured to emit red (R), green (G), or blue (B) light when energized. The anode layer 1212 is used to electrically connect to the array layer on the substrate 110. In the energized state, an electric field is formed between the anode layer 1212 and the cathode layer 1214, causing the organic light-emitting material layer 1213 to emit red, green, or blue light.

[0053] A single light-emitting unit 121 is used to emit monochromatic light, such as red light, green light, or blue light. That is, multiple light-emitting units 121 may include a first light-emitting unit for emitting red light, a second light-emitting unit for emitting green light, and a third light-emitting unit for emitting blue light, which may also be referred to as red sub-pixels, green sub-pixels, and blue sub-pixels. The red sub-pixels, green sub-pixels, and blue sub-pixels can be arranged in a matrix in multiple rows and columns. The arrangement of the multiple light-emitting units 121 of the light-emitting layer 120 is a well-known technology in the art and will not be described in detail here.

[0054] The light-emitting layer 120 may also include a pixel definition layer 122, which has multiple pixel openings, and the light-emitting units 121 are disposed within the pixel openings. The pixel definition layer 122 serves as a partition structure between the multiple light-emitting units 121, defining the position of each light-emitting unit 121, ensuring isolation between them, and preventing crosstalk. The pixel definition layer 122 can be made of black material, which can effectively prevent light reflection inside the display panel 100, thereby improving the contrast and color purity of the display panel 100 and bringing a more realistic display effect.

[0055] The light-emitting layer 120 may also include an encapsulation layer 123, which is located on the side of the light-emitting unit 121 away from the substrate 110 and is used to protect each light-emitting unit 121.

[0056] In some embodiments, please refer to Figure 3 and Figure 4 , Figure 3 yes Figure 1 An enlarged view of an embodiment of the optical layer 130 in the display panel 100. Figure 3 This application shows a first structure of optical layer 130, namely optical layer 130A. Figure 4 yes Figure 1 The display panel 100 adopts Figure 2 The light-emitting layer 120 and Figure 3 The image shows a cross-sectional view of the optical layer 130A. The optical layer 130A includes an optical clear adhesive (OCA) layer 131, which is doped with black pigment or black dye. Optical adhesive is a special adhesive used to bond transparent optical elements. Even with black pigment or black dye, the optical adhesive can still achieve bonding between the light-emitting layer 120 and the textured layer 140.

[0057] The black pigment or black dye is used to deepen the color gradation. The optical adhesive layer 131, which is doped with black pigment or black dye, is a dark film layer with a certain light transmittance. After natural light passes through the texture layer 140 and the optical layer 130A, it is reflected by the light-emitting layer 120. When the reflected natural light passes through the optical adhesive layer 131, which is doped with black pigment or black dye, it can be absorbed at least partially by the black pigment or black dye doped in the optical adhesive layer 131. This achieves the blocking of the light reflected by the light-emitting layer 120 by the optical layer 130A, thereby increasing the contrast and clarity of the display panel 100.

[0058] Black pigments or dyes can also be replaced with dark substances that have an equivalent darkening gradation.

[0059] In some embodiments, the black pigment may include carbon black. Carbon black is a common black pigment; here, carbon black refers to pigment carbon black, which is mainly used for coloring and has excellent hiding power and tinting strength, and is resistant to heat and chemical corrosion.

[0060] In some embodiments, the black pigment may include aniline black. Aniline black also has excellent tinting strength and hiding power.

[0061] In some embodiments, the weight percentage of black pigment or black dye in the optical adhesive layer 131 is 1% to 20%.

[0062] For example, the mass percentage of black pigment or black dye in the optical adhesive layer 131 can be 1%, 2%, 5%, 7%, 10%, 12%, 15%, 18%, or 20%. In this embodiment, limiting the mass percentage of black pigment or black dye in the optical adhesive layer 131 to the range of 1% to 20% enables the optical layer 130A to have a better blocking effect on the light reflected by the light-emitting layer 120, thereby increasing the contrast and clarity of the display panel 100.

[0063] Furthermore, the mass percentage of black pigment or black dye in the optical adhesive layer 131 is 1% to 15%, for example, 1%, 2%, 5%, 7%, 10%, 12%, or 15%. In this embodiment, limiting the mass percentage of black pigment or black dye in the optical adhesive layer 131 to the range of 1% to 15% enables the optical layer 130A to have a better blocking effect on the light reflected by the light-emitting layer 120, thereby increasing the contrast and clarity of the display panel 100.

[0064] Furthermore, the mass percentage of black pigment or black dye in the optical adhesive layer 131 is 1% to 10%, for example, 1%, 2%, 5%, 7%, or 10%. In this embodiment, limiting the mass percentage of black pigment or black dye in the optical adhesive layer 131 to the range of 1% to 10% enables the optical layer 130A to have a better blocking effect on the light reflected by the light-emitting layer 120, thereby increasing the contrast and clarity of the display panel 100.

[0065] In some embodiments, the transmittance of optical layer 130A is 50% to 70%, that is, the transmittance of optical adhesive layer 131 doped with black pigment or black dye is 50% to 70%. For example, the transmittance of optical layer 130A can be 50%, 55%, 60%, 65%, or 70%.

[0066] In this embodiment, limiting the transmittance of the optical layer 130A to a specific range of 50% to 70% allows the display panel 100 to have better light extraction efficiency. Furthermore, the transmittance of the optical layer 130A is greater than that of a traditional polarizer, thus improving the light extraction efficiency of the display panel 100. Within this transmittance range, the optical layer 130A reduces the reflection of natural light, meaning it effectively blocks light reflected from the light-emitting layer 120, thereby improving the contrast and clarity of the display panel 100.

[0067] The optimal light emission efficiency of the display panel 100 can be achieved by adjusting the light transmittance of the optical layer 130A.

[0068] In some embodiments, the thickness of the optical layer 130A is 25 micrometers to 75 micrometers, such as 25 micrometers, 40 micrometers, 50 micrometers, 60 micrometers, 75 micrometers, etc.

[0069] In this embodiment, the thickness of the optical layer 130A is limited to a specific range of 25 micrometers to 75 micrometers. This allows the display panel 100 to have a smaller thickness while the optical layer 130A effectively reduces ambient light reflection, and also has a higher light transmittance.

[0070] In some embodiments, the thickness of the optical layer 130A is 50 micrometers.

[0071] In some embodiments, please refer to Figure 5 and Figure 6 , Figure 5 yes Figure 1 An enlarged view of another embodiment of the optical layer 130 in the display panel 100. Figure 5 This application shows a second structure of optical layer 130, namely optical layer 130B. Figure 6 yes Figure 1The display panel 100 adopts Figure 2 The light-emitting layer 120 and Figure 5 The cross-sectional view of the optical layer 130B shows that the optical layer 130B includes a first optical layer 133 and a second optical layer 134, the second optical layer 134 at least partially surrounding the first optical layer 133, and the transmittance of the first optical layer 133 being greater than or equal to the transmittance of the second optical layer 134.

[0072] In this embodiment, the transmittance of the first optical layer 133 is greater than or equal to the transmittance of the second optical layer 134. The first optical layer 133 allows light emitted by the light-emitting layer 120 to pass through, thereby enabling the display function of the display panel 100. Natural light passes through the texture layer 140 and the optical layer 130B and is reflected by the light-emitting layer 120. When the reflected natural light passes through the second optical layer 134, it can be absorbed by the second optical layer 134 at least partially, thereby enabling the optical layer 130B to block the natural light reflected by the light-emitting layer 120, thereby increasing the contrast and clarity of the display panel 100.

[0073] In some embodiments, the cross-section of the second optical layer 134 in the thickness direction of the display panel 100 includes a trapezoidal or rectangular cross-section. In other embodiments, the cross-section of the second optical layer 134 may also be other shapes.

[0074] In some embodiments, the first optical layer 133 is made of a transparent material, and the second optical layer 134 is made of a black material. The second optical layer 134 can be a dark film layer with a certain light transmittance, or it can be a dark film layer that is opaque.

[0075] In this embodiment, the material of the first optical layer 133 is set to a transparent material, which can improve the transmittance of the light emitted by the light-emitting unit 121 when it passes through the first optical layer 133. The material of the second optical layer 134 is set to a black material, which can be used to block the natural light reflected by the light-emitting unit 121.

[0076] In some embodiments, the first optical layer 133 is made of transparent optical adhesive, and the second optical layer 134 is made of optical adhesive doped with black pigment or black dye. It can be understood that both the first optical layer 133 and the second optical layer 134 are optical adhesives, and the second optical layer 134 is formed by deepening a portion of the optical adhesive by doping it with black pigment or black dye, while the other portion of the optical adhesive is not deepened to form the first optical layer 133.

[0077] For an introduction to black pigments or black dyes, please refer to the examples above.

[0078] In some embodiments, the optical layer 130B, which includes the first optical layer 133 and the second optical layer 134, is fabricated using 3D printing technology.

[0079] In some embodiments, the transmittance of optical layer 130B, which includes the first optical layer 133 and the second optical layer 134, is 50% to 70%. For example, the transmittance of optical layer 130B can be 50%, 55%, 60%, 65%, or 70%.

[0080] In this embodiment, limiting the transmittance of the optical layer 130B to a specific range of 50% to 70% allows the display panel 100 to have better light extraction efficiency. Furthermore, the transmittance of the optical layer 130B is greater than that of a traditional polarizer, thus improving the light extraction efficiency of the display panel 100. Within this transmittance range, the optical layer 130B can reduce the reflection of natural light; that is, the optical layer 130B has a better blocking effect on the light reflected from the light-emitting layer 120. Therefore, it can also improve the contrast and clarity of the display panel 100.

[0081] The light transmittance of optical layer 130B can be changed by adjusting the area ratio of the first optical layer 133 and the second optical layer 134 on a plane parallel to the substrate 110, thereby achieving the optimal light emission efficiency of the display panel 100.

[0082] In some embodiments, the thickness of optical layer 130B, which includes the first optical layer 133 and the second optical layer 134, is 25 micrometers to 75 micrometers. For example, 25 micrometers, 40 micrometers, 50 micrometers, 60 micrometers, 75 micrometers, etc. In this embodiment, limiting the thickness of optical layer 130B to the specific range of 25 micrometers to 75 micrometers enables the display panel 100 to have a relatively small thickness while the optical layer 130B effectively reduces ambient light reflection, and also has high light transmittance.

[0083] In some embodiments, the thickness of the optical layer 130B is 50 micrometers.

[0084] In some embodiments, the refractive index of the first optical layer 133 of the optical layer 130B is greater than the refractive index of the second optical layer 134.

[0085] In this embodiment, by limiting the relationship between the refractive index of the first optical layer 133 and the refractive index of the second optical layer 134, the first optical layer 133 can act as a convex lens, that is, it can act as an MLA (Micro Lens Array). This can release a large amount of light that is lost due to reflection inside the display panel 100, thereby reducing light reflection inside the display panel 100 and redirecting the light path reflected backward inside the display panel 100 to the light-emitting side, further increasing the light-emitting efficiency and thus increasing the perceived brightness.

[0086] In some embodiments, please continue reading Figure 2 and Figure 6 The light-emitting layer 120 includes a light-emitting unit 121, and a first optical layer 133 is disposed corresponding to the light-emitting unit 121. The orthogonal projection of the first optical layer 133 on the substrate 110 covers the orthogonal projection of the light-emitting unit 121 on the substrate 110.

[0087] For a detailed description of the light-emitting layer 120, please refer to the above embodiments, which will not be repeated here.

[0088] Corresponding to the multiple light-emitting units 121 of the light-emitting layer 120, there are also multiple first optical layers 133 of the optical layer 130B. The multiple first optical layers 133 are arranged in a matrix in multiple rows and columns, so that one first optical layer 133 corresponds to one light-emitting unit 121, and the light emitted by a single light-emitting unit 121 can pass through the corresponding first optical layer 133.

[0089] Since the transmittance of the first optical layer 133 in the optical layer 130B is greater than or equal to the transmittance of the second optical layer 134, in this embodiment, the orthographic projection of the first optical layer 133 on the substrate 110 covers the orthographic projection of the light-emitting unit 121 on the substrate 110. In this way, the light emitted by the light-emitting unit 121 can pass through the first optical layer 133 as much as possible, reducing the absorption of the light emitted by the light-emitting unit 121 by the second optical layer 134, thereby improving the transmittance of the light emitted by the light-emitting unit 121 when passing through the optical layer 130B.

[0090] In some embodiments, please refer to Figure 7 and Figure 8 , Figure 7 yes Figure 1 An enlarged view of another embodiment of the optical layer 130 in the display panel 100. Figure 7 This application shows a third structure of optical layer 130, namely optical layer 130C. Figure 8 yes Figure 1 The display panel 100 adopts Figure 2 The light-emitting layer 120 and Figure 7A cross-sectional view of the optical layer 130C shows that the optical adhesive layer 131, which is doped with black pigment or black dye, has a light-transmitting opening 135.

[0091] The optical layer 130C in this embodiment can be considered as a... Figure 3 Further improvements to the optical layer 130A. The optical adhesive layer 131, doped with black pigment or black dye, can be a dark film layer with a certain light transmittance, or it can be a dark film layer that is opaque.

[0092] The light-transmitting opening 135 allows light emitted by the light-emitting layer 120 to pass through, enabling the display function of the display panel 100. After passing through the texture layer 140 and the optical layer 130C, natural light is reflected by the light-emitting layer 120. The reflected natural light can be absorbed by the optical adhesive layer 131, which is doped with black pigment or black dye, on the side of the light-transmitting opening 135. This allows the optical layer 130C to block the natural light reflected by the light-emitting layer 120, thereby increasing the contrast and clarity of the display panel 100.

[0093] In this embodiment, the light emitted by the light-emitting layer 120 itself can pass through the light-transmitting port 135 of the optical layer 130C. Compared with the light emitted by the light-emitting layer 120 itself passing through the film layer of the optical layer 130, the light emission efficiency of the display panel 100 can be improved.

[0094] In some embodiments, the cross-section of the light-transmitting aperture 135 in the thickness direction of the display panel 100 includes a trapezoidal or rectangular cross-section. In other embodiments, the cross-section of the light-transmitting aperture 135 may also be other shapes.

[0095] In some embodiments, the transmittance of optical layer 130C is 50% to 70%. For example, the transmittance of optical layer 130C can be 50%, 55%, 60%, 65%, or 70%.

[0096] In this embodiment, limiting the transmittance of the optical layer 130C to a specific range of 50% to 70% allows the display panel 100 to have better light extraction efficiency. Furthermore, the transmittance of the optical layer 130C is greater than that of a traditional polarizer, thus improving the light extraction efficiency of the display panel 100. Within this transmittance range, the optical layer 130C reduces the reflection of natural light; that is, the optical layer 130C effectively blocks light reflected from the light-emitting layer 120, thereby improving the contrast and clarity of the display panel 100.

[0097] The light transmittance of the optical layer 130C can be changed by adjusting the percentage of the area of ​​the light-transmitting aperture 135 in the optical layer 130C on the plane parallel to the substrate 110 (i.e., the aperture ratio of the optical layer 130C), thereby achieving the optimal light emission efficiency of the display panel 100.

[0098] In some embodiments, the thickness of the optical layer 130C is 5 micrometers to 20 micrometers, for example, the thickness of the optical layer 130C is 5 micrometers, 7 micrometers, 15 micrometers, 18 micrometers or 20 micrometers.

[0099] In this embodiment, the thickness of the optical layer 130C is limited to a specific range of 25 micrometers to 75 micrometers. This allows the display panel 100 to have a smaller thickness while the optical layer 130C effectively reduces ambient light reflection, and also has a higher light transmittance.

[0100] In some embodiments, the thickness of the optical layer 130C can be 50 micrometers.

[0101] In some embodiments, please continue reading Figure 2 and Figure 8 The light-emitting layer 120 includes a light-emitting unit 121, and a light-transmitting port 135 is correspondingly disposed with the light-emitting unit 121. The orthographic projection of the light-transmitting port 135 on the substrate 110 at least partially overlaps with the orthographic projection of the light-emitting unit 121 on the substrate 110.

[0102] For a description of the light-emitting layer 120, please refer to the above embodiments; further details will not be provided here.

[0103] Corresponding to the multiple light-emitting units 121 of the light-emitting layer 120, the optical layer 130C also has multiple light-transmitting ports 135. The multiple light-transmitting ports 135 can also be arranged in a matrix into multiple rows and columns, so that one light-transmitting port 135 corresponds to one light-emitting unit 121, and the orthographic projection of the light-transmitting port 135 on the substrate 110 at least partially overlaps with the orthographic projection of the light-emitting unit 121 on the substrate 110, so that the light emitted by a single light-emitting unit 121 can pass through the corresponding light-transmitting port 135.

[0104] In some embodiments, the orthogonal projection of the light-transmitting aperture 135 on the substrate 110 covers the orthogonal projection of the light-emitting unit 121 on the substrate.

[0105] In this embodiment, the orthogonal projection of the light-transmitting aperture 135 on the substrate 110 covers the orthogonal projection of the light-emitting unit 121 on the substrate 110. This allows the light emitted by the light-emitting unit 121 to pass through the light-transmitting aperture 135 as much as possible, reducing the absorption of the light emitted by the light-emitting unit 121 by the optical adhesive layer 131 doped with black pigment or black dye, thereby improving the transmittance of the light emitted by the light-emitting unit 121 when passing through the optical layer 130C. It is understood that in other embodiments, it is not excluded that the orthogonal projection of the light-transmitting aperture 135 on the substrate 110 may only cover a portion of the orthogonal projection of the light-emitting unit 121 on the substrate.

[0106] In some embodiments, please refer to Figure 9 , Figure 9 This is another cross-sectional view of the display panel provided in this application embodiment. The light-transmitting port 135 includes a plurality of spaced-apart sub-light-transmitting ports 1350. In this application embodiment, one light-emitting unit 121 can correspond to a plurality of sub-light-transmitting ports 1350 of one light-transmitting port 135, and the light emitted by the light-emitting unit 121 itself can also pass through the optical layer 130C. It can be understood that in other embodiments, the light-transmitting port 135 can be a single large light-transmitting port 135.

[0107] In some embodiments, please refer to Figure 10 , Figure 10 This is another cross-sectional view of the display panel provided in the embodiments of this application. The display panel 100 also includes a hardening layer 180, which is stacked on the side of the texture layer 140 away from the light-emitting layer 120.

[0108] In this embodiment, the hardened layer 180 can serve as the outermost structure on the display side of the display panel 100, covering the texture layer 140. The hardened layer 180 has a certain hardness, thereby protecting the texture layer 140.

[0109] In some embodiments, at least one of the textured layer 140 and the hardened layer 180 has a surface with an uneven texture. The uneven texture can increase the tactile feel when gripped.

[0110] In some embodiments, the texture layer 140 includes a first texture portion and a second texture portion, wherein the first texture portion and the second texture portion have different color depths, and one of the first texture portion and the second texture portion is provided with a protrusion and the other with a depression to form an uneven structure. In this embodiment, the depression and protrusion are respectively provided in the dark and light color areas of the texture layer 140, which can bring a richer user experience.

[0111] In some embodiments, see again Figure 1 A composite adhesive tape (SCF) 170 is also provided on the side of the substrate 110 opposite to the textured layer 140. The composite adhesive tape 170 can serve as a buffer, heat dissipation, and conductivity. The thickness of the composite adhesive tape 170 can be set to about 200 micrometers.

[0112] In some embodiments, an organosilicon pressure-sensitive adhesive (PSA) 150 and a barrier protection film (BPF) 160 are further disposed between the substrate 110 and the composite tape 170.

[0113] The shielding protective film 160 serves to support the display panel 100. The material of the shielding protective film 160 can be polyethylene terephthalate (PET). The thickness of the shielding protective film 160 can be set to approximately 75 micrometers.

[0114] The silicone pressure-sensitive adhesive 150 serves to bond the substrate 110 to the shielding protective film 160. The thickness of the silicone pressure-sensitive adhesive 150 can be set to approximately 25 micrometers.

[0115] In addition, this application also provides an electronic device, which includes the display panel 100 in any of the above embodiments. For the specific structure, please refer to the above related content. The electronic device can be any device with display function, such as a mobile phone, computer, game console, or vehicle display screen, and is not limited here.

[0116] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A display panel, characterized in that, The display panel includes a substrate, a light-emitting layer, an optical layer, and a texture layer stacked sequentially. The optical layer is used to bond the light-emitting layer and the texture layer, and to block the light reflected by the light-emitting layer.

2. The display panel according to claim 1, characterized in that, The optical layer includes an optical adhesive layer, which is doped with black pigment or black dye. Preferably, the black pigment includes carbon black; Preferably, the black pigment or black dye accounts for 1% to 20% by weight within the optical adhesive layer; Preferably, the light transmittance of the optical layer is 50% to 70%; Preferably, the thickness of the optical layer is 25 micrometers to 75 micrometers.

3. The display panel according to claim 1, characterized in that, The optical layer includes a first optical layer and a second optical layer, wherein the second optical layer at least partially surrounds the first optical layer, and the light transmittance of the first optical layer is greater than or equal to the light transmittance of the second optical layer. Preferably, in the thickness direction of the display panel, the cross-section of the second optical layer includes a trapezoidal cross-section or a rectangular cross-section; Preferably, the first optical layer is made of a transparent material, and the second optical layer is made of a black material; Preferably, the material of the first optical layer is a transparent optical adhesive, and the material of the second optical layer is an optical adhesive doped with black pigment or black dye; Preferably, the optical layer is fabricated using 3D printing technology; Preferably, the light transmittance of the optical layer is 50% to 70%; Preferably, the thickness of the optical layer is 25 micrometers to 75 micrometers.

4. The display panel according to claim 3, characterized in that, The refractive index of the first optical layer is greater than that of the second optical layer.

5. The display panel according to claim 3, characterized in that, The light-emitting layer includes a light-emitting unit, and the first optical layer is disposed corresponding to the light-emitting unit. The orthogonal projection of the first optical layer on the substrate covers the orthogonal projection of the light-emitting unit on the substrate.

6. The display panel according to claim 2, characterized in that, The optical adhesive layer, which is doped with the black pigment or the black dye, has a light-transmitting opening; Preferably, in the thickness direction of the display panel, the cross-section of the light-transmitting opening includes a trapezoidal cross-section or a rectangular cross-section; Preferably, the light transmittance of the optical layer is 50% to 70%; Preferably, the thickness of the optical layer is 25 micrometers to 75 micrometers.

7. The display panel according to claim 6, characterized in that, The light-emitting layer includes a light-emitting unit, and the light-transmitting port is disposed corresponding to the light-emitting unit. The orthographic projection of the light-transmitting port on the substrate at least partially overlaps with the orthographic projection of the light-emitting unit on the substrate. Preferably, the orthographic projection of the light-transmitting opening on the substrate covers the orthographic projection of the light-emitting unit on the substrate; Preferably, the light-transmitting opening includes a plurality of sub-light-transmitting openings arranged at intervals.

8. The display panel according to claim 1, characterized in that, The display panel further includes a hardening layer, which is stacked on the side of the texture layer opposite to the light-emitting layer.

9. The display panel according to claim 8, characterized in that, At least one of the textured layer and the hardened layer has a surface with an uneven structure; Preferably, the texture layer includes a first texture portion and a second texture portion, wherein the first texture portion and the second texture portion have different color depths, and one of the first texture portion and the second texture portion is provided with a protrusion and the other is provided with a depression to form the uneven structure; Preferably, a composite tape is also provided on the side of the substrate opposite to the textured layer.

10. An electronic device, characterized in that, Includes the display panel as described in any one of claims 1-9.

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