Display panel and display device

Abstract

The invention provides a display panel and a display device. The display panel comprises a substrate, a light-emitting device layer, a color film layer and a lens layer, the light emitting device layer includes a plurality of light emitting devices. The color film layer comprises a plurality of color film units, and the color film units correspond to the light-emitting devices one to one. The lens layer comprises a plurality of lens units, the plurality of lens units and the plurality of light-emitting devices are arranged in a one-to-one correspondence mode, and the lens units are configured to converge light emitted by the corresponding light-emitting devices in the third direction to the main light ray angle direction to be emitted out. In the first direction, the two adjacent color film units are the first color film unit and the second color film unit, the first color film unit corresponds to the first light-emitting device, the second color film unit corresponds to the second light-emitting device, and the first color film unit is configured to shield at least part of light emitted by the second light-emitting device in the fourth direction. The third direction and the fourth direction are located on opposite sides of the center of the light emitting region of the second light emitting device, respectively.

Description

Technical Field

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

[0002] In recent years, AR (Augmented Reality) / VR (Virtual Reality) technologies have matured. Micro OLED (Micro Organic Light-Emitting Diode) microdisplays are miniature organic light-emitting diode displays that use mono-silicon integrated circuits as the backplane and top-emitting OLED devices as the light source. They have advantages such as small size, light weight, high contrast, fast response speed, and low power consumption, and are expected to become the next generation of mobile display terminals. Summary of the Invention

[0003] The first aspect of this disclosure provides a display panel, characterized in that it includes: Substrate; A light-emitting device layer is disposed on one side of the substrate and includes a plurality of light-emitting devices arranged in an array along a first direction and a second direction. Each light-emitting device includes a first electrode, a light-emitting layer and a second electrode stacked in a direction away from the substrate, and the first direction intersects the second direction. A color filter layer is disposed on the side of the light-emitting device layer away from the substrate, and includes a plurality of color filter units arranged in an array along the first direction and the second direction. The plurality of color filter units are disposed in one-to-one correspondence with the plurality of light-emitting devices. In the first direction, the color filter unit has a first offset relative to the corresponding light-emitting device. A lens layer is disposed on the side of the color filter layer away from the substrate, and includes a plurality of lens units. The plurality of lens units are disposed one-to-one with the plurality of light-emitting devices. In the first direction, the lens unit has a second offset relative to the corresponding light-emitting device. The lens unit is configured to converge the light emitted by the corresponding light-emitting device toward the third direction to the main ray angle direction for emission. In the first direction, two adjacent color filter units are a first color filter unit and a second color filter unit. The first color filter unit corresponds to a first light-emitting device, and the second color filter unit corresponds to a second light-emitting device. The first color filter unit is configured to block at least a portion of the light emitted by the second light-emitting device toward the fourth direction. The third direction and the fourth direction are located on opposite sides of the center of the light-emitting area of ​​the second light-emitting device.

[0004] Optionally, it also includes a display area and a border area surrounding the display area; Along a direction away from the center of the display area, the ratio between the length of the color filter unit and the length of the light-emitting area of ​​the corresponding light-emitting device tends to increase, and / or the ratio between the area of ​​the color filter unit and the area of ​​the light-emitting area of ​​the corresponding light-emitting device tends to increase.

[0005] Optionally, the center of the light-emitting area of ​​the first light-emitting device and the center of the light-emitting area of ​​the second light-emitting device have a first distance, and the side of the light-emitting layer of the first light-emitting device closer to the second light-emitting device and the side of the second light-emitting device farther from the first light-emitting device have a second distance; the first distance is smaller than the second distance.

[0006] Optionally, it also includes a display area and a border area surrounding the display area; There is a third spacing between the centers of the light-emitting areas of two adjacent light-emitting devices, and the third spacing decreases in a direction away from the center of the display area.

[0007] Optionally, it also includes a display area and a border area surrounding the display area; The length of the color filter unit increases in a direction away from the center of the display area.

[0008] Optionally, it also includes a display area and a border area surrounding the display area; Along the direction away from the center of the display area, the length of the light-emitting layer of the light-emitting device tends to decrease.

[0009] Optionally, the first color filter unit includes a blocking portion, the blocking portion including a first edge, the first edge being close to the second color filter unit; In the first direction, the first edge has a fourth distance from the center of the light-emitting area of ​​the first light-emitting device, and the first edge has a fifth distance from the center of the light-emitting area of ​​the second light-emitting device, wherein the fourth distance is greater than the fifth distance.

[0010] Optionally, in the first direction, the length of the blocking portion is less than or equal to a / 2, where a represents the distance between the center of the light-emitting area of ​​the first light-emitting device and the center of the light-emitting area of ​​the second light-emitting device.

[0011] Optionally, it also includes a display area and a border area surrounding the display area; Along a direction away from the center of the display area, the length of the blocking portion of each of the first color filter units tends to increase.

[0012] Optionally, the plurality of color filter units include a first group of color filter units, a second group of color filter units, and a third group of color filter units, each group of color filter units including an adjacent first color filter unit and a second color filter unit; The first color filter unit of the first group of color filter units is configured to transmit blue light, and the second color filter unit is configured to transmit green light; the first color filter unit of the second group of color filter units is configured to transmit green light, and the second color filter unit is configured to transmit red light; the first color filter unit of the third group of color filter units is configured to transmit red light, and the second color filter unit is configured to transmit blue light. In the first direction, the blocking portion of the first color filter unit of the first group of color filter units has a first length, the blocking portion of the first color filter unit of the second group of color filter units has a second length, and the blocking portion of the first color filter unit of the second group of color filter units has a third length, wherein the first length is greater than the second length, and the second length is greater than the third length.

[0013] Optionally, the light-emitting area of ​​the second light-emitting device includes a second edge and a third edge, the second edge and the third edge being disposed on opposite sides of the center of the light-emitting area in the first direction, and the second edge being closer to the light-emitting area of ​​the first light-emitting device than the third edge; In the first direction, the second edge has a sixth distance from the center of the first electrode of the second light-emitting device, and the third edge has a seventh distance from the center of the first electrode of the second light-emitting device, wherein the sixth distance is smaller than the seventh distance.

[0014] Optionally, the first offset and / or the second offset are negatively correlated with the sixth spacing.

[0015] A second aspect of this disclosure provides a display device including a display panel as described in any of the first aspects.

[0016] The technical solutions provided in this disclosure have at least the following technical effects or advantages: The display panel provided in this embodiment includes a substrate, a light-emitting device layer, a color filter layer, and a lens layer. The light-emitting device layer is disposed on one side of the substrate and includes a plurality of light-emitting devices arranged in an array along a first direction and a second direction. Each light-emitting device includes a first electrode, a light-emitting layer, and a second electrode stacked along a direction away from the substrate, and the first direction intersects the second direction. The color filter layer is disposed on the side of the light-emitting device layer away from the substrate and includes a plurality of color filter units arranged in an array along the first direction and the second direction. Each color filter unit is disposed in a one-to-one correspondence with a plurality of light-emitting devices. In the first direction, the color filter unit has a first offset relative to the corresponding light-emitting device. The lens layer is disposed on the side of the color filter layer away from the substrate and includes a plurality of lens units. Each lens unit is disposed in a one-to-one correspondence with a plurality of light-emitting devices. In the first direction, the lens unit has a second offset relative to the corresponding light-emitting device. The lens unit is configured to converge the light emitted by the corresponding light-emitting device in a third direction to the main ray angle direction for emission. In the first direction, two adjacent color filter units are a first color filter unit and a second color filter unit. The first color filter unit corresponds to a first light-emitting device, and the second color filter unit corresponds to a second light-emitting device. The first color filter unit is configured to block at least a portion of the light emitted by the second light-emitting device toward the fourth direction. The third direction and the fourth direction are located on opposite sides of the center of the light-emitting area of ​​the second light-emitting device.

[0017] Therefore, in this embodiment, for two adjacent color filter units, the first color filter unit blocks at least a portion of the light emitted from the adjacent light-emitting device (second light-emitting device) in the fourth direction. The light emitted in the fourth direction and the light emitted in the third direction are located on opposite sides of the center of the light-emitting area of ​​the second light-emitting device. The light emitted in the third direction is converged to the principal ray angle (CRA) by the lens unit corresponding to the second light-emitting device. Conversely, if the light emitted in the fourth direction is not blocked by the first color filter unit, it will be converged to the opposite direction of the principal ray angle (non-CRA) by the lens unit corresponding to the first light-emitting device, thereby causing display defects. Based on this, by blocking at least a portion of the light emitted by the adjacent second light-emitting device in the fourth direction by the first color filter unit, the light emitted by the second light-emitting device is prevented from being converged to a non-CRA direction, thus improving the display effect.

[0018] The above description is merely an overview of the technical solutions provided by the embodiments of this disclosure. In order to better understand the technical means of the embodiments of this disclosure and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this disclosure more apparent and understandable, specific implementation methods of the embodiments of this disclosure are described below. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A partial cross-sectional structural diagram of a display panel in the related art is shown; Figure 2 A schematic diagram of the optical path of the light-emitting device in a display panel in the related art is shown; Figure 3 A first partial cross-sectional structural schematic diagram of the display panel according to an embodiment of the present disclosure is shown; Figure 4 A plan view of the display panel according to an embodiment of the present disclosure is shown. Figure 1 ; Figure 5 A plan view of the display panel according to an embodiment of the present disclosure is shown. Figure 2 ; Figure 6 A second partial cross-sectional structural schematic diagram of the display panel according to an embodiment of the present disclosure is shown; Figure 7 It shows Figure 3 A magnified view of the area within the dashed box A; Figure 8 A third partial cross-sectional schematic diagram of a display panel according to an embodiment of the present disclosure is shown; Figure 9 It shows Figure 8 A magnified view of the area within the dashed box B; Figure 10 A fourth partial cross-sectional structural schematic diagram of the display panel according to an embodiment of the present disclosure is shown; Figure 11 It shows Figure 10 A magnified view of the area within the dashed box C; Figure 12 A comparison diagram of the brightness decay curves of a display panel according to an embodiment of this disclosure and a display panel in the related art is shown; Figure 13 A structural diagram of a display device according to an embodiment of the present disclosure is shown.

[0020] 1-White light-emitting device; 2-Encapsulation layer; 3-First planarization layer; 4-Color filter; 5-Second planarization layer; 6-Lens group; 7-Adhesive; 8-Cover plate; 41-Blue filter; 42-Red filter; 43-Green filter; 100-Display panel; 10-Substrate; 11-Light-emitting device layer; 12-Color filter layer; 13-Lens layer; 11A-Light-emitting device; 111-First electrode; 112-Light-emitting layer; 113-Second electrode; X-First direction; Y-Second direction; D3-Third direction; D4-Fourth direction Direction; 131 - Lens unit; 121 - First color filter unit; 122 - Second color filter unit; 11A1 - First light-emitting device; 11A2 - Second light-emitting device; Z - Direction away from substrate; 15 - Blocking portion; C1 - Center of the light-emitting area of ​​the first light-emitting device; C2 - Center of the light-emitting area of ​​the second light-emitting device; 151 - First edge; L1 - Fourth spacing; L2 - Fifth spacing; B1 - Second edge; B2 - Third edge; C3 - Center of the first electrode of the second light-emitting device; L3 - Sixth spacing; L4 - Seventh spacing; 12A - Color filter unit; 101 - Display area; 102 - Bezel area; Z - Direction away from the substrate; W - Direction away from the center of the display area; D5 - CRA direction; L5 - First pitch; L6 - Second pitch; 200 - Display device. Detailed Implementation

[0021] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the term "a plurality of" as used herein includes two or more cases.

[0022] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0023] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0024] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0025] Figure 1 A partial cross-sectional structural diagram of a display panel in the related art is shown.

[0026] Currently, Micro OELD uses white light EL (Emitting Light) plus CF (Color Filter) to achieve color display, such as... Figure 1 As shown. The CF (Color Filter) allows monochromatic red (blue / green) light to pass through by absorbing light of a specific wavelength. TFE (Thin Film Encapsulation) protects the OLED device. Because the OLED material and the cathode (usually Mg / Ag, magnesium / silver) are sensitive to H2O (water) and O2 (oxygen) (easily oxidized), thin film encapsulation technology is used to isolate water and oxygen, thus protecting the OLED device. Figure 1 The display panel includes a white light-emitting device 1, an encapsulation layer 2, a first planarization layer 3, a color filter 4, a second planarization layer 5, a lens group 6, adhesive 7, and a cover plate 8, which are stacked sequentially. The color filter 4 includes a blue filter 41, a red filter 42, and a green filter 43. It is understood that the embodiments of this disclosure mainly focus on the deflection and convergence of light emitted from the light-emitting device in the color filter 4 and the lens group 6. Therefore, Figure 1 Other related film layers of the display panel, such as the substrate, driving circuit layer, first electrode layer, and second electrode layer, are omitted.

[0027] In silicon-based OLED microdisplay technology, microlens arrays play a crucial role, primarily focusing light and effectively enhancing the brightness of the screen at the viewing angle. When silicon-based OLEDs are combined with optomechanical optical systems for near-eye display devices such as AR / VR, the system places extremely high demands on the uniformity of brightness and color at the eye level. However, in actual optical integration, due to factors such as light path propagation and aberrations, the uniformity of brightness and color at the eye level often exhibits poor performance. To address this issue, an effective method is to customize the screen-end angle of the silicon-based OLED to match the optomechanical design. This customized design can significantly optimize the light propagation path, thereby improving the brightness and color uniformity of the final image.

[0028] Currently, the core of conventional screen angle customization technology lies in precisely adjusting the planar position of the color filter 4 and the lens relative to the center line of the light-emitting area of ​​the light-emitting device. Specifically, it involves calculating and controlling the offset and direction of the color filter 4 and the lens based on the light emission requirements of different areas of the screen, thereby affecting the size of the chief ray angle. This purposeful offset allows light rays with specific directions and angles to be emitted from the center and edge areas of the screen, thus achieving a customized chief ray angle (CRA) effect that matches the optical engine system, aiming to allow more light to effectively enter the entrance pupil of the optical engine. It can be understood that the chief ray angle can refer to the maximum angle at which light can be focused onto a pixel; one light-emitting structure corresponds to one pixel, and the light-emitting area refers to the area defined by the pixel opening.

[0029] Figure 2 A schematic diagram of the light-emitting device of a display panel in the related art is shown.

[0030] like Figure 2 As shown, the conventional angle-customized design aims to change the direction of the light emitted from the pixel by precisely adjusting the planar offset of the color filter 4 (CF) and the lens (Lens) relative to the center line of the light-emitting area of ​​the light-emitting device, thereby matching the viewing angle of the highest brightness to the target principal ray angle.

[0031] However, this physical offset introduces optical crosstalk problems during implementation: such as Figure 2 As can be seen, when a lens shifts relative to the light-emitting area of ​​the light-emitting device below it, its coverage area may no longer be aligned with a single light-emitting device, but rather a lens may simultaneously cover two adjacent light-emitting devices.

[0032] In this situation, the lens not only converges the light emitted by the light-emitting device directly below it to the CRA angle direction (D1); simultaneously, it also captures the light emitted in the opposite direction from adjacent light-emitting devices and converges this portion of light, which should have been dissipated, to the opposite direction of CRA (D2). This collection and convergence effect of the reverse light from adjacent light-emitting devices has the following optical defect: when measuring the brightness of the screen at different viewing angles, its brightness attenuation curve will show an abnormal secondary peak at the reverse CRA angle, in addition to the expected positive peak. This is called reverse brightness spike. This abnormal light, after entering the optical system, cannot form a clear main image. Instead, it undergoes multiple reflections or scatterings, forming a weak and misaligned parasitic image on the imaging surface, also known as "ghosting." This ghosting defect superimposed on the normal display screen causes image blurring and reduced contrast, interfering with the user's visual experience and affecting the display's optical effect.

[0033] Therefore, based on customizing the screen angle to optimize the performance of the optical system, how to suppress the backlight convergence effect caused by lens offset is a technical challenge for improving the optical engine imaging quality of silicon-based OLEDs and eliminating ghosting.

[0034] In view of this, the present disclosure provides a display panel in which, for two adjacent color filter units, a first color filter unit blocks at least a portion of the light emitted from a neighboring light-emitting device (second light-emitting device) in a fourth direction. The light emitted in the fourth direction and the light emitted in the third direction are located on opposite sides of the center of the light-emitting area of ​​the second light-emitting device. The light emitted in the third direction is converged to the principal ray angle (CRA) by the lens unit corresponding to the second light-emitting device. Conversely, if the light emitted in the fourth direction is not blocked by the first color filter unit, it will be converged to the opposite direction of the principal ray angle (non-CRA) by the lens unit corresponding to the first light-emitting device, thereby causing display defects. Based on this, the present disclosure provides a display panel in which at least a portion of the light emitted by the adjacent second light-emitting device in the fourth direction is blocked by the first color filter unit, thereby preventing the light emitted by the second light-emitting device from being converged to a non-CRA direction and improving the display effect.

[0035] The display panel of the present disclosure embodiment will now be described with reference to the accompanying drawings. It should be noted that the display panel may be an OLED display panel, or it may be other display panels with a pixel-defining layer structure such as a QLED (Quantum Dot Light Emitting Diodes) display panel. The present disclosure embodiment does not limit this.

[0036] Figure 3 A first partial cross-sectional structural schematic diagram of a display panel according to an embodiment of the present disclosure is shown.

[0037] A first aspect of this disclosure provides a display panel 100, including: a substrate 10, a light-emitting device layer 11, a color filter layer 12, and a lens layer 13; the light-emitting device layer 11 is disposed on one side of the substrate 10, including a plurality of light-emitting devices 11A arranged in an array along a first direction X and a second direction Y, each light-emitting device 11A including a first electrode 111, a light-emitting layer 112, and a second electrode 113 stacked along a direction Z away from the substrate, the first direction X intersecting the second direction Y. The color filter layer 12 is disposed on the side of the light-emitting device layer 11 away from the substrate 10, including a plurality of color filter units arranged in an array along the first direction X and the second direction Y, each color filter unit corresponding to a plurality of light-emitting devices 11A, the color filter unit having a first offset relative to the corresponding light-emitting device 11A in the first direction X. A lens layer 13, disposed on the side of the color filter layer 12 away from the substrate 10, includes multiple lens units 131, each corresponding to a plurality of light-emitting devices 11A. In the first direction X, each lens unit 131 has a second offset relative to its corresponding light-emitting device 11A. The lens unit 131 is configured to converge the light emitted by the corresponding light-emitting device 11A towards a third direction D3 to the main ray angle direction for emission. In the first direction X, adjacent color filter units are a first color filter unit 121 and a second color filter unit 122. The first color filter unit 121 corresponds to the first light-emitting device 11A1, and the second color filter unit corresponds to the second light-emitting device 11A2. The first color filter unit 121 is configured to block at least a portion of the light emitted by the second light-emitting device 11A2 towards a fourth direction D4. The third direction D3 and the fourth direction D4 are located on opposite sides of the center C2 of the light-emitting area of ​​the second light-emitting device.

[0038] In some embodiments, the display panel 100 may include a substrate 10, which may include a display area and a border area located on at least one side of the display area. It should be noted that the border area surrounds the display area; however, the embodiments of this disclosure are not limited thereto, and in other embodiments, the border area may be located on at least one side of the display area. For example, the substrate 10 can be a rigid substrate. This rigid substrate may include, for example, a glass substrate, an ultra-thin glass (UTG) substrate, a PMMA (polymethyl methacrylate) substrate, or a silicon substrate. In this case, the display panel 100 can be a rigid display panel 100.

[0039] It should be noted that the substrate 10 can be a single-layer structure or a multi-layer structure. For example, the substrate 10 may include at least one flexible substrate and at least one buffer layer, with the flexible substrate and the buffer layer being stacked alternately.

[0040] The display panel 100 may include a plurality of pixel units arranged in an array in the display area, each pixel unit being the smallest unit for displaying an image. Multiple pixel units may be arranged, for example, in an array along rows extending in a first direction X (e.g., a row direction) and columns extending in a second direction Y (e.g., a column direction). However, embodiments of this disclosure do not specifically limit the arrangement of the pixel units, and they can be arranged in various forms. For example, the pixel units may be arranged such that the direction inclined relative to the first direction X and the second direction Y is the column direction, and the direction intersecting the column direction is the row direction.

[0041] It should be noted that a pixel unit can include multiple sub-pixels, and each sub-pixel can display a single color, such as a red sub-pixel displaying red, a green sub-pixel displaying green, a blue sub-pixel displaying blue, and a white sub-pixel displaying white; the brightness (grayscale) of the sub-pixels of different colors in each pixel can be adjusted, and multiple colors can be displayed through color combination and superposition, thereby realizing the full-color display of the display panel 100.

[0042] Each sub-pixel may include a light-emitting device 11A and a pixel driving circuit for driving the light-emitting element. For example, a red sub-pixel may include a light-emitting device 11A for emitting red light, a green sub-pixel may include a light-emitting device 11A for emitting green light, a blue sub-pixel may include a light-emitting device 11A for emitting red light, and a white sub-pixel may include a light-emitting device 11A for emitting white light. For example, the light-emitting device 11A may be an organic light-emitting diode (OLED) or a micro-organic light-emitting diode (MIC). Pixel driving circuits include micro OLEDs (emitting diodes), quantum dot organic light-emitting diodes (QLEDs), and others. The pixel driving circuit can include components such as transistors and capacitors. It receives signals from signal lines on the display panel 100, generates current to drive the light-emitting device 11A, and achieves the purpose of driving the light-emitting device 11A to emit light by connecting to either the first electrode 111 or the second electrode 113. For example, the pixel driving circuit is disposed on the substrate 10, and the light-emitting device 11A is located on the side of the pixel driving circuit away from the substrate 10. For example, the pixel driving circuit can include circuit structures commonly used in the art, such as 7T1C, 7T2C, 8T2C, or 4T1C.

[0043] In the OLED display panel 100, the light-emitting device 11A of the sub-pixel may include a first electrode 111, an organic light-emitting functional layer, and a second electrode 113 sequentially stacked on the substrate 10. The first electrode 111 may be an anode, and the second electrode 113 may be a cathode. The organic light-emitting functional layer includes a light-emitting material layer. Of course, in addition to the light-emitting material layer, the organic light-emitting functional layer may also include an auxiliary light-emitting functional layer. The auxiliary light-emitting functional layer may include one or more of a hole injection layer, a hole transport layer, an electron blocking layer, an electron injection layer, an electron transport layer, and a hole blocking layer. It may also include other functional film layers in addition to the above layers. The layers may include organic materials or inorganic materials such as quantum dots, depending on actual needs. This embodiment does not limit this.

[0044] In other embodiments, the light-emitting device 11A can be a white light device. Common white light devices include multiple light-emitting layers 112. Monochromatic light emitted by different light-emitting layers 112 is mixed to form white light. A microcavity is formed using an anode and a cathode. The light emitted by the light-emitting layers 112 is confined within the microcavity formed by the anode and cathode. When the cavity length of the microcavity is on the same order of magnitude as the wavelength of the light emitted by the light-emitting layers 112, a microcavity effect is generated on the light-emitting characteristics, causing strong interference of multiple beams of light emitted by the light-emitting layers 112 within the microcavity, thereby enabling selection and gain of light of a specific wavelength. It is understood that the functional layers of a white light device are usually fabricated as a single layer; for example, each light-emitting layer 112 is fabricated as a single layer. In this embodiment, the white OLED is distinguished into multiple light-emitting devices 11A for ease of description. For example, the white OLED includes multiple sub-pixel regions, including red, green, and blue sub-pixel regions. The functional layers of the white OLED located in the red sub-pixel region are called red light-emitting devices 11A, those located in the green sub-pixel region are called green light-emitting devices 11A, and those located in the blue sub-pixel region are called blue light-emitting devices 11A. Thus, the white light device can emit different colors of light in different sub-pixel regions. For example, the light emitted by the red light-emitting layer 112 through the microcavity gain in the red sub-pixel region suppresses green and blue light, thereby causing the red sub-pixel region to emit red light; the light emitted by the green light-emitting layer 112 through the microcavity gain in the green sub-pixel region suppresses red and blue light, thereby causing the green sub-pixel region to emit green light; and the light emitted by the blue light-emitting layer 112 through the microcavity gain in the blue sub-pixel region suppresses green and red light, thereby causing the blue sub-pixel region to emit blue light.

[0045] For example, the structure of the first electrode 111 can be a composite structure composed of a transparent conductive oxide film, a metal film, and another transparent conductive oxide film stacked sequentially. The transparent conductive oxide film can be made of either ITO (Indium tin oxide) or IZO (Indium zinc oxide), and the metal film can be made of either gold (Au), silver (Ag), nickel (Ni), or platinum (Pt). Alternatively, the first electrode 111 can also be a single-layer structure, and the material of the single-layer structure can be any of ITO, IZO, Au, Ag, Ni, or Pt.

[0046] For example, the cathodes of each light-emitting device 11A can be electrically connected to each other, forming an integrated structure. For example, the cathode material can be any one of aluminum (Al), silver (Ag), and magnesium (Mg), or any one of magnesium-silver alloy and aluminum-lithium alloy.

[0047] In some embodiments, the display panel 100 may further include a pixel defining layer located on the side of the first electrode 111 away from the substrate 10, exposing a portion of the surface of the first electrode 111; the pixel defining layer includes pixel openings configured to define the light-emitting area of ​​the light-emitting layer 112.

[0048] For example, the display panel 100 may further include a color filter layer 12, which may be disposed on the side of the pixel defining layer away from the substrate 10. A sub-pixel includes a light-emitting device 11A, and the color filter layer 12 is disposed on the side of the light-emitting device 11A away from the substrate 10. The sub-pixel also includes a color filter unit. For example, a sub-pixel includes one light-emitting device 11A and one color filter unit. The light-emitting material of the light-emitting device 11A may be a white light material. The light emitted by the light-emitting device 11A is filtered by the color filter unit before being emitted. The light-emitting material of the light-emitting device 11A may be a colored light material. For example, red light emitted by the light-emitting device 11A is filtered by a red color filter unit before being emitted; green light emitted by the light-emitting device 11A is filtered by a green color filter unit before being emitted; and blue light emitted by the light-emitting device 11A is filtered by a blue color filter unit before being emitted.

[0049] It is understandable that the color filter layer 12 is a key functional layer in the silicon-based OLED microdisplay device, located above the light-emitting device layer 11, i.e., on the side away from the substrate 10. This color filter layer 12 is composed of multiple color filter units, which are arranged in an array along the first direction X and the second direction Y, ensuring a one-to-one correspondence with the light-emitting devices 11A in the lower light-emitting device layer 11. To achieve specific optical control objectives, such as optimizing the viewing angle or matching the CRA of the optomechanical system, the color filter units are not concentrically aligned with their corresponding light-emitting devices 11A. In the first direction X, each color filter unit has a first offset relative to its corresponding light-emitting device 11A directly below it. This misalignment allows for customized screen angles, and by actively controlling the light emission paths of red, green, and blue light, the overall performance and efficiency of the optical system are improved.

[0050] It should be noted that the lens layer 13 is the uppermost optical control layer in the silicon-based OLED microdisplay structure. It is integrated above the color filter layer 12, i.e., on the side away from the substrate 10. The lens layer 13 includes multiple lens units 131, each corresponding to the light-emitting device 11A and the color filter unit below, forming a complete optical channel. To achieve precise light guidance, in the first direction X, each lens unit 131 has a second offset relative to the center of its corresponding light-emitting device 11A. The second offset works in conjunction with the first offset of the color filter layer 12 to achieve the screen-end angle value. In some embodiments, the value of the second offset is different from the value of the first offset, for example, the second offset is greater than the first offset. Each lens unit 131 is essentially a miniature light concentrator, configured to capture and refract the light emitted by the corresponding light-emitting device 11A. Specifically, the light emitted by the light-emitting device 11A towards the third direction D3 is filtered by the color filter unit, and then deflected and converged to the principal ray angle (CRA) direction for emission. This improves light energy utilization and brightness at the positive viewing angle.

[0051] In some embodiments, the value range of the principal ray angle can be 30 degrees to 50 degrees, for example, 30 degrees, 35 degrees, 40 degrees, 45 degrees and 50 degrees.

[0052] It should be noted that in the embodiments of this disclosure, in every two adjacent color filter units, one is the first color filter unit 121 and the other is the second color filter unit 122. That is, the same color filter unit may be either the first color filter unit 121 or the second color filter unit 122 in different adjacent color filter units. For ease of understanding, the following example is provided. For example, in the first direction X, there are three adjacent color filter units A, B, and C, where A and B are one group of adjacent color filter units, and B and C are another group of adjacent color filter units. In the group of adjacent color filter units A and B, A is the first color filter unit 121 and B is the second color filter unit 122; while in the group of adjacent color filter units B and C, B is the first color filter unit 121 and C is the second color filter unit 122. In other words, in the embodiments of this disclosure, the distinction between the first color filter unit 121 and the second color filter unit 122 is only for ease of explanation.

[0053] Similarly, in this embodiment, in every two adjacent light-emitting devices 11A, one is a first light-emitting device 11A1 and the other is a second light-emitting device 11A2. That is, the same light-emitting device 11A can be either the first light-emitting device 11A1 or the second light-emitting device 11A2. For ease of understanding, the following example is provided. For instance, in the first direction X, there are three adjacent light-emitting devices 11A: D, F, and G. D and F form one group of adjacent light-emitting devices 11A, and F and G form another group of adjacent light-emitting devices 11A. In the group of adjacent light-emitting devices 11A between D and F, D is the first light-emitting device 11A1 and F is the second light-emitting device 11A2; while in the group of adjacent light-emitting devices 11A between F and G, F is the first light-emitting device 11A1 and G is the second light-emitting device 11A2. In other words, in this embodiment, the distinction between the first light-emitting device 11A1 and the second light-emitting device 11A2 is only for ease of explanation.

[0054] In this embodiment of the disclosure, the center of the light-emitting area of ​​the light-emitting device 11A can refer to the physical geometric center. For example, the pixel delimiting layer defines the light-emitting area of ​​the light-emitting device 11A, and the pixel opening is usually a regular shape (e.g., a rectangle, a circle, or a rounded rectangle). In this case, the center of the light-emitting area can refer to the geometric center point of the regular shape.

[0055] It is understood that the light emitted by the second light-emitting device 11A2 diffuses in all directions, with a portion of it directed towards the area where the first light-emitting device 11A1 is located. In this case, the first color filter unit 121 is configured to effectively block at least a portion of the light emitted from its adjacent second light-emitting device 11A2 toward the fourth direction D4. Specifically, with the center C2 of the light-emitting area of ​​the second light-emitting device as a reference, it is desirable that the light emitted by the second light-emitting device 11A2 toward the third direction D3 be filtered by the second color filter unit 122 and then collected and converged toward the CRA direction by the lens unit 131 above it; the stray light from the second light-emitting device 11A2 toward the fourth direction D4 is considered a source of optical crosstalk. In this embodiment, the first color filter unit 121 is used to block the reverse stray light from the adjacent second light-emitting device 11A2. As mentioned above, the reverse stray light is the cause of the CRA reverse brightness lifting and subsequent ghosting. Therefore, by blocking the stray light through the first color filter unit 121, this part of the reverse light is reduced from the light source path, thereby alleviating the reverse light that the lens may collect due to the offset, reducing the optical crosstalk phenomenon. For example, it can prevent the light from the red light-emitting device 11A from leaking into the area where the adjacent green light-emitting device 11A is located, avoiding color mixing and saturation reduction, and improving the contrast and color purity of the entire display screen.

[0056] Figure 4 A plan view of the display panel according to an embodiment of the present disclosure is shown. Figure 1 ; Figure 5 A plan view of the display panel of the disclosed embodiment is shown. Figure 2 .

[0057] In some embodiments, the system further includes a display area 101 and a border area 102 surrounding the display area 101; the ratio between the length of the color filter unit 12A and the length of the light-emitting area of ​​the corresponding light-emitting device 11A increases in a direction away from the center of the display area 101, and / or the ratio between the area of ​​the color filter unit 12A and the area of ​​the light-emitting area of ​​the corresponding light-emitting device 11A increases.

[0058] It is understood that, in this embodiment of the disclosure, the direction away from the center of the display area 101 can refer to the non-CRA direction D5, that is, the direction in which the light rays are inclined towards the edge of the display area 101.

[0059] like Figures 4-5As shown, it should be noted that at the center of the display area 101, due to the near-normal viewing angle, light crosstalk is relatively small, so the length ratio or area ratio of the color filter unit 12A to the light-emitting area can be basically matched. However, as the viewing angle increases towards the edge of the display area 101 (especially the large angle of incidence in the CRA direction D5), increasing the length ratio or area ratio of the color filter unit 12A to the light-emitting device 11A can more effectively block oblique light rays from adjacent pixels. This increase in the length ratio or area ratio of the color filter unit 12A to the light-emitting device 11A can be achieved by increasing the overlap length between two adjacent color filter units 12A or increasing the length of one of the color filter units 12A, or by decreasing the length of the light-emitting area of ​​the light-emitting device 11A in the non-CRA direction D5.

[0060] Figure 6 A second partial cross-sectional structural schematic diagram of the display panel 100 according to an embodiment of the present disclosure is shown.

[0061] In some embodiments, the center C1 of the light-emitting area of ​​the first light-emitting device and the center C2 of the light-emitting area of ​​the second light-emitting device have a first distance L5, and the side of the light-emitting layer 112 of the first light-emitting device 11A1 that is close to the second light-emitting device 11A2 and the side of the second light-emitting device 11A2 that is far away from the first light-emitting device 11A1 have a second distance L6; the first distance L5 is smaller than the second distance L6.

[0062] It is understandable that the first spacing L5 refers to the distance between the centers of the light-emitting areas of two adjacent light-emitting devices 11A, which is the standard center-to-center distance for pixel design. The second spacing L6 is the distance between the side of the light-emitting layer 112 of the first light-emitting device 11A1 closest to the second light-emitting device 11A2 and the side of the light-emitting layer 112 of the second light-emitting device 11A2 furthest from the first light-emitting device 11A1, reflecting the spacing between the edges of the light-emitting layers 112 of the two light-emitting devices 11A in the CRA direction D5. When the first spacing L5 is smaller than the second spacing L6, it means that the light-emitting layers 112 of the two light-emitting devices 11A are not uniformly arranged in a centrosymmetric manner, but rather the effective light-emitting length (i.e., EL length) of each light-emitting device 11A in the non-CRA direction D5 is reduced by shrinking the edges on the non-CRA side. This structure reduces the size of the light source that diffuses from the center of each pixel toward the non-CRA direction D5. As a result, when the light emitted by adjacent pixels in the non-CRA direction D5 converges through the lens unit 131, the intensity and crossover range of the converged light are reduced due to the smaller size of the light source, thereby suppressing light crosstalk in the non-CRA direction D5.

[0063] See also Figure 5In some embodiments, the device further includes a display area 101 and a border area 102 surrounding the display area 101; there is a third spacing between the centers of the light-emitting areas of two adjacent light-emitting devices 11A, and the third spacing decreases in a direction away from the center of the display area 101.

[0064] Understandably, the third pixel pitch decreases along the direction away from the center of the display area 101, indicating a non-uniform pixel arrangement from the center to the edge of the display area 101. This results in a smaller length of the light-emitting area in the non-CRA direction D5 closer to the edge. Consequently, the light source size of each light-emitting device 11A in the non-CRA direction D5 is reduced, thereby reducing the light emitted towards adjacent light-emitting devices 11A in the non-CRA direction D5. When the light converges through the upper lens unit 131, its diffusion range and crosstalk potential are weakened, suppressing optical crosstalk in the non-CRA direction D5 of the edge area.

[0065] See also Figure 4 In some embodiments, the display area 101 and the border area 102 surrounding the display area 101 are also included; the length of the color filter unit 12A increases in a direction away from the center of the display area 101.

[0066] Understandably, when observing the display screen at a large angle, light incident at a large angle is more likely to pass through the sides of adjacent color filter units 12A, causing color mixing. By gradually increasing the length of the color filter units 12A from the center to the edge, it is equivalent to expanding the effective coverage of the color filter in areas with higher crosstalk risk, allowing it to more fully block the oblique light from adjacent pixels, thereby suppressing color shift and contrast reduction in the edge areas. At the same time, the large trend in the length of the color filter units 12A can be coordinated with the offset or size adjustment of the light-emitting area, improving color consistency and optical matching in the CRA direction D5 without excessively sacrificing the aperture ratio of the central area.

[0067] See also Figure 5 In some embodiments, it also includes a display area 101 and a border area 102 disposed around the display area 101; the length of the light-emitting layer 112 of the light-emitting device 11A tends to decrease along the direction away from the center of the display area 101.

[0068] Figure 7 It shows Figure 3 A magnified view of the area within the dashed box A.

[0069] In some embodiments, the first color filter unit 121 includes a blocking portion 15, wherein at least part of the light emitted by the second light-emitting device 11A2 toward the fourth direction D4 is blocked by the blocking portion 15 after passing through it.

[0070] like Figure 7 As shown in the dashed box, the first color filter unit 121 includes a blocking portion 15, which overlaps with the orthographic projection of the adjacent second color filter unit 122 on the substrate 10.

[0071] In some embodiments, the first color filter unit 121 has a first projection on the substrate 10, the second color filter unit 122 has a second projection on the substrate 10, the area where the first projection and the second projection overlap is an overlapping area, and the orthographic projection of the blocking portion 15 on the substrate 10 is located in the overlapping area.

[0072] Understandably, as mentioned earlier, the lens unit 131 may erroneously converge the reverse light from the adjacent light-emitting device 11A when it is offset, resulting in CRA back brightness flickering and ghosting. By increasing the overlap area (CF Overlap) of adjacent color filter units in the non-target CRA direction, a physical blocking portion 15 is formed. The blocking portion 15 actively blocks the reverse stray light, thereby synergizing with the light-gathering function of the lens unit 131 to improve image quality. Specifically, the blocking portion 15 on the first color filter unit 121 can refer to the widened color filter black matrix. The orthographic projection of the color filter black matrix on the substrate 10 is located in the overlap area of ​​the first projection and the second projection. This overlap area is a high-incidence area for optical crosstalk between adjacent light-emitting devices 11A. Therefore, when the second light-emitting device 11A2 emits light in the fourth direction D4, this part of the light will enter the blocking portion 15 during propagation and be effectively absorbed or blocked, thereby reducing propagation.

[0073] Figure 8 A third partial cross-sectional schematic diagram of a display panel according to an embodiment of the present disclosure is shown; Figure 9 It shows Figure 8 A magnified view of the area within the dashed box B.

[0074] In some embodiments, the first color filter unit 121 includes a blocking portion 15, the blocking portion 15 including a first edge 151, the first edge 151 being close to the second color filter unit 122; in the first direction X, the first edge 151 has a fourth distance L1 with the center C1 of the light-emitting area of ​​the first light-emitting device, and the first edge 151 has a fifth distance L2 with the center C2 of the light-emitting area of ​​the second light-emitting device, the fourth distance L1 being greater than the fifth distance L2.

[0075] It is understandable that in the first direction X, the fourth spacing L1 is greater than the fifth spacing L2, indicating that the first edge 151 is spatially more biased towards the second light-emitting device 11A2, thus providing a basis for intercepting stray light emitted by the second light-emitting device 11A2 towards the fourth direction D4. In a conventional display panel 100, the lens offset, while converging useful light in the CRA direction, inevitably also converges stray light from adjacent light-emitting devices 11A in non-CRA directions, which is the cause of reverse brightness warping and ghosting. This embodiment of the present disclosure constructs a wider and more precise blocking area by increasing the length of the color filter unit at a specific location. This widened blocking portion 15 formed by the asymmetrical edge can effectively block stray light emitted by the second light-emitting device 11A2 that propagates towards the fourth direction D4 (i.e., non-CRA direction) and may be incorrectly converged. Because this increase in length is localized and asymmetrical, it primarily affects the crosstalk optical path of the second light-emitting device 11A2, while having virtually no impact on the main ray convergence process of the first light-emitting device 11A1 itself facing the third direction D3 (i.e., the CRA direction). Thus, while eliminating ghosting, the advantages of customized lens angles in improving brightness and luminous efficacy at the viewing angle are retained, achieving a balance between suppressing defects and enhancing performance.

[0076] In some embodiments, in the first direction X, the length of the blocking portion 15 is less than or equal to a / 2, where a represents the distance between the center C1 of the light-emitting area of ​​the first light-emitting device and the center C2 of the light-emitting area of ​​the second light-emitting device.

[0077] For example, the length of the shielding part 15 is in the range of 0.4μm to a / 2μm, such as 0.4μm, 0.8μm, 1μm, 1.4μm, 1.8μm or 2μm.

[0078] Understandably, the length range of the shielding portion 15 can prevent excessive shading and avoid eroding the effective light-emitting area of ​​the first light-emitting device 11A1, thereby ensuring overall brightness while eliminating optical crosstalk.

[0079] In some embodiments, the display area 101 and the border area 102 surrounding the display area 101 are further included; the length of the blocking portion 15 of each of the first color filter units 121 tends to increase along a direction away from the center of the display area 101.

[0080] It should be noted that in the customization of the screen angle of silicon-based OLEDs, a layout that diffuses from the center of the display area outwards is typically adopted. Along the direction away from the center of the display area, the first offset of the color filter unit and the second offset of the lens unit 131 tend to increase, resulting in an increase in the CRA angle of the emitted light from the light-emitting device 11A from the center to the edge of the display area. However, the increase in the first and second offsets simultaneously exacerbates the focusing ability of the lens unit 131 on the reflected light from adjacent light-emitting devices 11A, causing the reflected brightness warping phenomenon to become increasingly severe along the direction away from the center of the display area.

[0081] Based on the above, in this embodiment, the length of the blocking portion 15 of each first color filter unit 121 is set to increase in a direction away from the center of the display area. It is understood that since a larger CRA (Color Filter Arrangement) angle causes stronger backscattered light, enhancing the blocking capability against backscattered light from adjacent light-emitting devices 11A at corresponding positions can improve the blocking effect. In this embodiment, by setting the length of the blocking portion 15 of each first color filter unit 121 to increase in a direction away from the center of the display area, differentiated backscattered light blocking can be achieved in different areas of the display area. For example, in the edge area with the largest CRA angle, a wider blocking portion 15 can more effectively block the backscattered light from adjacent light-emitting devices 11A, thereby balancing the optical crosstalk that deteriorates due to the increase in the first offset and the first offset, suppressing ghosting and brightness unevenness that may occur in the edge area of ​​the display area due to the back brightness rise, and thus enabling clear imaging quality to be obtained throughout the entire field of view from the center to the edge of the display area.

[0082] In some embodiments, the plurality of color filter units 12A includes a first group of color filter units 12A, a second group of color filter units 12A, and a third group of color filter units 12A. Each group of color filter units 12A includes adjacent first color filter units 121 and second color filter units 122. The first color filter unit 121 of the first group of color filter units 12A is configured to transmit blue light, and the second color filter unit 122 is configured to transmit green light. The first color filter unit 121 of the second group of color filter units 12A is configured to transmit green light, and the second color filter unit 122 is configured to transmit red light. The first color filter unit 121 of the three sets of color filter units 12A is configured to transmit red light, and the second color filter unit 122 is configured to transmit blue light. In the first direction X, the blocking portion 15 of the first color filter unit 121 of the first set of color filter units 12A has a first length, the blocking portion 15 of the first color filter unit 121 of the second set of color filter units 12A has a second length, and the blocking portion 15 of the first color filter unit 121 of the second set of color filter units 12A has a third length. The first length is greater than the second length, and the second length is greater than the third length.

[0083] It should be noted that the crosstalk intensity varies between light-emitting devices 11A emitting different colors of light. For example, considering human vision and material properties, the abnormal brightness perception caused by crosstalk between the green (G) light-emitting device 11A and the blue (B) light-emitting device 11A is more pronounced. Therefore, a higher suppression intensity is needed for the backscattered light from adjacent light-emitting devices 11A. Accordingly, the length of the blocking portion 15 of the first color filter unit 121 of the first group of color filter units is set to the maximum to compensate for the large crosstalk caused by the green (G) light-emitting device 11A to the blue (B) light-emitting device 11A. In addition, the first length is set to be greater than the second length, and the second length is set to be greater than the third length, respectively, to adapt to the compensation of crosstalk intensity between light-emitting devices 11A emitting different colors of light.

[0084] Therefore, this embodiment can effectively block light intensity crosstalk between the green light-emitting device 11A and the blue light-emitting device 11A, which are more sensitive to light and have a greater impact, thereby suppressing the resulting reverse brightness spike and ghosting. At the same time, it avoids excessive blocking of combinations with less crosstalk effects, such as green light-emitting device 11A and red light-emitting device 11A, and red light-emitting device 11A and blue light-emitting device 11A, ensuring the overall aperture ratio and brightness efficiency of the display panel 100.

[0085] Figure 10 A fourth partial cross-sectional structural schematic diagram of a display panel according to an embodiment of the present disclosure is shown. Figure 11 It shows Figure 10 A magnified view of the area within the dashed box C.

[0086] In some embodiments, the light-emitting area of ​​the second light-emitting device 11A2 includes a second edge B1 and a third edge B2, the second edge B1 and the third edge B2 being disposed on opposite sides of the center of the light-emitting area in the first direction X, the second edge B1 being closer to the light-emitting area of ​​the first light-emitting device 11A1 than the third edge B2; in the first direction X, the second edge B1 has a sixth distance L3 with the center C3 of the first electrode of the second light-emitting device, and the third edge B2 has a seventh distance L4 with the center C3 of the first electrode of the second light-emitting device, the sixth distance L3 being smaller than the seventh distance L4.

[0087] For example, the first electrode 111 is the anode, and the center of the first electrode 111 can refer to the geometric center corresponding to the physical structure of the first electrode 111 itself. For example, if the first electrode 111 is a regular rectangle, then the center of the first electrode 111 is the geometric center of the rectangle.

[0088] It should be noted that, as mentioned above, stray light in the non-CRA direction is converged by the color filter unit and lens unit 131. Based on this, in this embodiment, the sixth spacing L3 is set to be smaller than the seventh spacing L4, that is, the light-emitting area of ​​the second light-emitting device 11A2 is smaller than the light-emitting area of ​​the conventional light-emitting device 11A. In particular, the light-emitting area of ​​the second light-emitting device 11A2 is reduced on the side closer to the light-emitting area of ​​the first light-emitting device 11A1. This increases the spacing between the light-emitting areas of the second light-emitting device 11A2 and the first light-emitting device 11A1, so that less light emitted by the second light-emitting device 11A2 toward the fourth direction D4 enters the area where the first light-emitting device 11A1 is located. This reduces the crosstalk of the reverse stray light of the second light-emitting device 11A2 to the first light-emitting device 11A1 and prevents it from being converged to the non-CRA direction by the lens unit 131 above the first light-emitting device 11A1.

[0089] In some embodiments, the ratio of the sixth spacing L3 to the seventh spacing L4 is in the range of 0.80-0.85, for example, 0.80, 0.81, 0.82, 0.83, 0.84 or 0.85.

[0090] In some embodiments, the first offset and / or the second offset are negatively correlated with the sixth spacing L3.

[0091] It should be noted that the larger the first offset of the color filter unit relative to the light-emitting device 11A, and / or the larger the second offset of the lens unit 131 relative to the light-emitting device 11A, the larger the corresponding principal ray angle, and the more severe the crosstalk of the back stray light from adjacent light-emitting devices 11A may be. In view of this, the embodiments of this disclosure show a negative correlation between the first offset and / or the second offset and the sixth spacing L3, that is, the larger the first offset and / or the second offset, the smaller the sixth spacing L3, that is, the greater the reduction length of the light-emitting area of ​​the second light-emitting device 11A2 on the side closer to the light-emitting area of ​​the first light-emitting device 11A1, thereby reducing the probability that the light emitted by the second light-emitting device 11A2 towards the fourth direction D4 enters the area where the first light-emitting device 11A1 is located.

[0092] Figure 12 A comparison graph showing the brightness decay curves of a display panel according to an embodiment of this disclosure and a display panel in the related art is provided.

[0093] like Figure 12The diagram illustrates the brightness decay curve S1 of a display panel in the related art and the brightness decay curve S2 of the display panel 100 in this embodiment. The horizontal axis of the brightness decay curve represents the light convergence angle, and the vertical axis represents the brightness. It can be seen that the display panel in the related art exhibits an abnormal secondary peak near -50 degrees within the reverse CRA angle range (e.g., -20 degrees to -60 degrees), i.e., a reverse brightness spike. This abnormal emitted light, after entering the optical system, cannot form a clear main image; instead, it undergoes multiple reflections or scatterings, forming a weak and misaligned parasitic image on the imaging surface, also known as a "ghosting." In contrast, the display panel 100 of this embodiment maintains relatively low brightness within the reverse CRA angle range and good brightness within the CRA angle range (e.g., 20 degrees to 40 degrees). Therefore, this embodiment ensures that the light emitted by the light-emitting device 11A is effectively converged to the CRA direction and reduces the convergence of light emitted by the light-emitting device 11A to non-CRA directions, thus improving display quality.

[0094] Figure 13 A structural diagram of a display device according to an embodiment of the present disclosure is shown. The display device includes the display panel 100 provided in any of the embodiments described above. Therefore, the display device has technical effects corresponding to the beneficial technical effects of the aforementioned display panel 100.

[0095] A second aspect of this disclosure provides a display device 200, including a display panel 100 as described in any of the first aspects.

[0096] For example, the display device 200 can be any electronic product or component with display function, such as a display screen, mobile phone, laptop computer, tablet computer, wearable display device (such as smartwatch, smart glasses, etc.), television, digital photo frame, etc.

[0097] Therefore, the display panel 100 of the display device 200 provided in this embodiment includes a substrate 10, a light-emitting device layer 11, a color filter layer 12, and a lens layer 13. The light-emitting device layer 11 is disposed on one side of the substrate 10 and includes a plurality of light-emitting devices 11A arranged in an array along a first direction X and a second direction Y. Each light-emitting device 11A includes a first electrode 111, a light-emitting layer 112, and a second electrode 113 stacked along a direction Z away from the substrate. The first direction X intersects the second direction Y. The color filter layer 12 is disposed on the side of the light-emitting device layer 11 away from the substrate 10 and includes a plurality of color filter units arranged in an array along the first direction X and the second direction Y. Each color filter unit is disposed in a one-to-one correspondence with a plurality of light-emitting devices 11A. In the first direction X, the color filter unit has a first offset relative to the corresponding light-emitting device 11A. A lens layer 13, disposed on the side of the color filter layer 12 away from the substrate 10, includes multiple lens units 131, each corresponding to a plurality of light-emitting devices 11A. In the first direction X, each lens unit 131 has a second offset relative to its corresponding light-emitting device 11A. The lens unit 131 is configured to converge the light emitted by the corresponding light-emitting device 11A towards a third direction D3 to the direction of the main ray angle for emission. In the first direction X, two adjacent color filter units are a first color filter unit 121 and a second color filter unit 122. The first color filter unit 121 corresponds to the first light-emitting device 11A1, and the second color filter unit corresponds to the second light-emitting device 11A2. The first color filter unit 121 is configured to block at least a portion of the light emitted by the second light-emitting device 11A2 towards a fourth direction D4. The third direction D3 and the fourth direction D4 are located on opposite sides of the center C2 of the light-emitting area of ​​the second light-emitting device. Therefore, in this embodiment of the present disclosure, for two adjacent color filter units, the first color filter unit 121 blocks at least a portion of the light emitted from the adjacent light-emitting device 11A (second light-emitting device 11A2) in the fourth direction D4. The light emitted in the fourth direction D4 and the light emitted in the third direction D3 are located on opposite sides of the center C2 of the light-emitting area of ​​the second light-emitting device. The light emitted in the third direction D3 is converged to the principal ray angle (CRA) by the lens unit 131 corresponding to the second light-emitting device 11A2. Correspondingly, if the light emitted in the fourth direction D4 is not blocked by the first color filter unit 121, it will be converged to the opposite direction of the principal ray angle (non-CRA) by the lens unit 131 corresponding to the first light-emitting device 11A1, thereby causing a display defect. Based on this, this embodiment of the present disclosure blocks at least a portion of the light emitted by the adjacent second light-emitting device 11A2 in the fourth direction D4 based on the first color filter unit 121, thereby preventing the light emitted by the second light-emitting device 11A2 from being converged to a non-CRA direction and improving the display effect.

[0098] The above description does not provide detailed technical specifications regarding the layout of each layer of the product. However, those skilled in the art should understand that layers and regions of the desired shape can be formed using various technical means. Furthermore, to form the same structure, those skilled in the art can also design methods that are not entirely identical to those described above. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination.

[0099] Furthermore, those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure is limited to these examples; within the framework of this disclosure, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this disclosure as described above, which are not provided in detail for the sake of brevity.

[0100] Although preferred embodiments of this disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this disclosure.

Claims

1. A display panel, characterized in that, include: Substrate; A light-emitting device layer is disposed on one side of the substrate and includes a plurality of light-emitting devices arranged in an array along a first direction and a second direction. Each light-emitting device includes a first electrode, a light-emitting layer and a second electrode stacked in a direction away from the substrate, and the first direction intersects the second direction. A color filter layer is disposed on the side of the light-emitting device layer away from the substrate, and includes a plurality of color filter units arranged in an array along the first direction and the second direction. The plurality of color filter units are disposed in one-to-one correspondence with the plurality of light-emitting devices. In the first direction, the color filter unit has a first offset relative to the corresponding light-emitting device. A lens layer is disposed on the side of the color filter layer away from the substrate, and includes a plurality of lens units. The plurality of lens units are disposed one-to-one with the plurality of light-emitting devices. In the first direction, the lens unit has a second offset relative to the corresponding light-emitting device. The lens unit is configured to converge the light emitted by the corresponding light-emitting device toward the third direction to the main ray angle direction for emission. In the first direction, two adjacent color filter units are a first color filter unit and a second color filter unit. The first color filter unit corresponds to a first light-emitting device, and the second color filter unit corresponds to a second light-emitting device. The first color filter unit is configured to block at least a portion of the light emitted by the second light-emitting device toward the fourth direction. The third direction and the fourth direction are located on opposite sides of the center of the light-emitting area of ​​the second light-emitting device.

2. The display panel according to claim 1, characterized in that, It also includes a display area and a border area surrounding the display area; Along a direction away from the center of the display area, the ratio between the length of the color filter unit and the length of the light-emitting area of ​​the corresponding light-emitting device tends to increase, and / or the ratio between the area of ​​the color filter unit and the area of ​​the light-emitting area of ​​the corresponding light-emitting device tends to increase.

3. The display panel according to claim 1, characterized in that, The center of the light-emitting area of ​​the first light-emitting device and the center of the light-emitting area of ​​the second light-emitting device have a first distance, and the side of the light-emitting layer of the first light-emitting device closer to the second light-emitting device and the side of the second light-emitting device farther from the first light-emitting device have a second distance; the first distance is smaller than the second distance.

4. The display panel according to claim 1, characterized in that, It also includes a display area and a border area surrounding the display area; There is a third spacing between the centers of the light-emitting areas of two adjacent light-emitting devices, and the third spacing decreases in a direction away from the center of the display area.

5. The display panel according to claim 1, characterized in that, It also includes a display area and a border area surrounding the display area; The length of the color filter unit increases in a direction away from the center of the display area.

6. The display panel according to claim 1, characterized in that, It also includes a display area and a border area surrounding the display area; Along the direction away from the center of the display area, the length of the light-emitting layer of the light-emitting device tends to decrease.

7. The display panel according to claim 1, characterized in that, The first color filter unit includes a blocking portion, the blocking portion including a first edge, the first edge being close to the second color filter unit; In the first direction, the first edge has a fourth distance from the center of the light-emitting area of ​​the first light-emitting device, and the first edge has a fifth distance from the center of the light-emitting area of ​​the second light-emitting device, wherein the fourth distance is greater than the fifth distance.

8. The display panel according to claim 7, characterized in that, In the first direction, the length of the blocking portion is less than or equal to a / 2, where a represents the distance between the center of the light-emitting area of ​​the first light-emitting device and the center of the light-emitting area of ​​the second light-emitting device.

9. The display panel according to claim 7, characterized in that, It also includes a display area and a border area surrounding the display area; Along a direction away from the center of the display area, the length of the blocking portion of each of the first color filter units tends to increase.

10. The display panel according to any one of claims 7-9, characterized in that, The plurality of color filter units include a first group of color filter units, a second group of color filter units, and a third group of color filter units, each group of color filter units including an adjacent first color filter unit and a second color filter unit; The first color filter unit of the first group of color filter units is configured to transmit blue light, and the second color filter unit is configured to transmit green light; the first color filter unit of the second group of color filter units is configured to transmit green light, and the second color filter unit is configured to transmit red light; the first color filter unit of the third group of color filter units is configured to transmit red light, and the second color filter unit is configured to transmit blue light. In the first direction, the blocking portion of the first color filter unit of the first group of color filter units has a first length, the blocking portion of the first color filter unit of the second group of color filter units has a second length, and the blocking portion of the first color filter unit of the second group of color filter units has a third length, wherein the first length is greater than the second length, and the second length is greater than the third length.

11. The display panel according to claim 1, characterized in that, The light-emitting area of ​​the second light-emitting device includes a second edge and a third edge, the second edge and the third edge being disposed on opposite sides of the center of the light-emitting area in the first direction, the second edge being closer to the light-emitting area of ​​the first light-emitting device than the third edge; In the first direction, the second edge has a sixth distance from the center of the first electrode of the second light-emitting device, and the third edge has a seventh distance from the center of the first electrode of the second light-emitting device, wherein the sixth distance is smaller than the seventh distance.

12. The display panel according to claim 11, characterized in that, The first offset and / or the second offset are negatively correlated with the sixth spacing.

13. A display device, characterized in that, Includes the display panel as described in any one of claims 1-12.

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