Display panel

Abstract

The present disclosure relates to the technical field of display, and particularly relates to a display panel, which has a display area and a non-display area, and the display area has a light emitting area and a separation area; the display panel comprises a display substrate, a touch function layer and a lens layer which are arranged in layers; the display substrate has a light emitting device located in the light emitting area, the touch function layer has a touch metal trace located in the separation area; the lens layer has a first lens structure and a lens barrier structure surrounding the first lens structure; the refractive index of the first lens structure is different from the refractive index of the lens barrier structure; the first lens structure has an uneven surface, the uneven surface is located on the side of the touch metal trace away from the display substrate, and the orthographic projection of the uneven surface on the display substrate at least partially overlaps the orthographic projection of the touch metal trace on the display substrate, and the orthographic projection of the first lens structure on the touch function layer does not overlap the orthographic projection of the light emitting device on the touch function layer. The display panel can improve the visualization phenomenon and the large-viewing-angle deviation.

Description

Technical Field

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

[0002] Large-size organic light-emitting diode (OLED) display devices have become one of the most popular technologies in the display panel market. The application of flexible multilayer on cell (FMLOC) touch technology is becoming more and more widespread. However, FMLOC uses a metal mesh to realize the touch function. During use, when an external point light source is incident on the FMLOC metal layer, it is reflected by the metal layer, resulting in a visible phenomenon.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a display panel that can improve visualization and reduce visual bias.

[0005] According to one aspect of this disclosure, a display panel is provided having a display area and a non-display area, the display area having a plurality of light-emitting areas arranged in an array and a spacing area located between any two adjacent light-emitting areas;

[0006] The display panel includes a display substrate, a touch function layer, and a lens layer stacked in sequence.

[0007] The display substrate has multiple light-emitting devices located in the light-emitting area; the touch function layer has touch metal traces located in the interval area; the lens layer has a first lens structure and a lens blocking structure, the lens blocking structure surrounding the first lens structure, and the refractive index of the first lens structure is different from the refractive index of the lens blocking structure.

[0008] The first lens structure has an uneven surface located on the side of the touch metal trace away from the display substrate, and the orthographic projection of the uneven surface on the display substrate at least partially coincides with the orthographic projection of the touch metal trace on the display substrate. The orthographic projection of the first lens structure on the touch functional layer does not coincide with the orthographic projection of the light-emitting device on the touch functional layer.

[0009] In one embodiment of this disclosure, the orthographic projection of the uneven surface on the display substrate completely covers the orthographic projection of the touch metal trace on the display substrate.

[0010] In one embodiment of this disclosure, the first lens structure is provided between any two adjacent light-emitting areas in the interval region.

[0011] In one embodiment of this disclosure, the first lens structure includes a plurality of first sub-lens structures arranged sequentially along the column direction, and a plurality of second sub-lens structures arranged sequentially along the row direction.

[0012] Along the column direction, at least some of the first sub-lens structures are asymmetrical; along the row direction, at least some of the second sub-lens structures are asymmetrical.

[0013] In one embodiment of this disclosure, the first lens structure has at least two scattering units, which are arranged sequentially along the width direction of the touch metal trace, and the scattering units have the uneven surface.

[0014] In one embodiment of this disclosure, the lens layer further has a plurality of second lens structures, each of which corresponds to a plurality of light-emitting devices; the plurality of second lens structures are spaced apart by the lens blocking structure, and the orthographic projection of the second lens structure on the touch function layer completely covers the orthographic projection of the light-emitting device on the touch function layer, and the light emitted by the light-emitting device exits through the second lens structure.

[0015] The second lens structure has a first surface and a second surface disposed opposite to each other, and a first connecting surface connecting the first surface and the second surface. The first surface is disposed on the side of the second surface away from the light-emitting device. The normal of the first connecting surface gradually changes and the first connecting surface is recessed towards the center of the second lens structure. At the first connecting surface, the refractive index of the second lens structure is greater than the refractive index of the lens blocking structure.

[0016] In one embodiment of this disclosure, the touch functional layer has a first touch metal layer and a second touch metal layer sequentially stacked along a direction away from the display substrate;

[0017] The distance between the first surface and the display substrate is greater than the distance between the second touch metal layer and the display substrate.

[0018] In one embodiment of this disclosure, the lens layer further has a plurality of second lens structures, each of which corresponds one-to-one with a plurality of light-emitting devices; the plurality of second lens structures are spaced apart by the lens blocking structure; the orthographic projection of the second lens structure on the touch functional layer completely covers the orthographic projection of the light-emitting device on the touch functional layer, and the light emitted by the light-emitting device exits through the second lens structure;

[0019] The second lens structure has a first curved surface and a second curved surface disposed opposite to each other, and a second connecting surface connecting the first curved surface and the second curved surface. The first curved surface is disposed on the side of the second curved surface away from the light-emitting device. The groove formed by the first curved surface opens to the side away from the display substrate, and the groove formed by the second curved surface opens to the side away from the display substrate. The thickness of the edge of the second lens structure is less than the thickness of the center of the second lens structure. At the first curved surface and the second curved surface, the refractive index of the second lens structure is greater than the refractive index of the lens blocking structure.

[0020] In one embodiment of this disclosure, the touch functional layer has a first touch metal layer and a second touch metal layer sequentially stacked along a direction away from the display substrate;

[0021] The distance between the edge of the first curved surface and the display substrate is greater than the distance between the second touch metal layer and the display substrate; the distance between the edge of the second curved surface and the display substrate is greater than the distance between the second touch metal layer and the display substrate.

[0022] In one embodiment of this disclosure, the lens layer further has a third lens structure;

[0023] The third lens structure is disposed on the side of the first lens structure and the second lens structure away from the display substrate, and the third lens structure covers the first lens structure and the second lens structure.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0026] Figure 1This is a schematic diagram of the structure of the display panel in one embodiment of the present disclosure.

[0027] Figure 2 This is a schematic diagram of the structure of the display panel in one embodiment of the present disclosure.

[0028] Figure 3 This is a schematic diagram of the structure of the display panel in one embodiment of the present disclosure.

[0029] Figure 4 This is a schematic diagram of the structure of the display panel in one embodiment of the present disclosure.

[0030] Figure 5 This is a schematic diagram of the structure of the display panel in one embodiment of the present disclosure.

[0031] Figure 6 This is a schematic diagram of the structure of the display panel in one embodiment of the present disclosure.

[0032] Figure 7 This is a schematic diagram of the structure of the display panel in one embodiment of the present disclosure.

[0033] Figure 8 This is a schematic diagram of the structure of the display panel in one embodiment of the present disclosure.

[0034] Figure 9 This is a schematic diagram of the optical path of the first lens structure in one embodiment of the present disclosure.

[0035] Figure 10 This is a schematic diagram of the optical path of the first lens structure in one embodiment of the present disclosure.

[0036] Figure 11 This is a schematic diagram of the structure of the display panel in one embodiment of the present disclosure.

[0037] Figure 12 This is a schematic diagram of the structure of the display panel in one embodiment of the present disclosure.

[0038] Figure 13 This is a schematic diagram of the structure of the display panel in one embodiment of the present disclosure.

[0039] Figure 14 This is a schematic diagram of the optical path of the second lens structure in one embodiment of the present disclosure. Detailed Implementation

[0040] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0041] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0042] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0043] Structure A is located on the side of structure B that is away from structure C. This can be understood as structure A being formed on the side of structure B that is away from structure C.

[0044] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly. For example, "connection" may be a fixed connection, a detachable connection, or an integral part; it may be a direct connection or an indirect connection through an intermediate medium.

[0045] In this embodiment, a thin-film transistor (TFT) includes an active layer, a gate insulating layer, and a gate, stacked together. The active layer is located within the semiconductor layer and includes a channel region and source and drain electrodes located on opposite sides of the channel region. The channel region retains semiconductor characteristics, while both the source and drain electrodes are conductive. In this embodiment, the functions of the "source" and "drain" are sometimes interchanged when using transistors with opposite polarities or when the current direction changes during circuit operation. In this embodiment, for any given transistor, one of the "source" and "drain" electrodes is referred to as the first electrode of the transistor, and the other is referred to as the second electrode.

[0046] In one embodiment of this disclosure, a display panel PNL is proposed, see [link to relevant documentation]. Figure 1 The display panel PNL includes a display area AA and a non-display area BB located outside the display area AA. The non-display area BB can be a continuous annular area surrounding the display area AA, or it can be a discontinuous area surrounding the display area AA. The display area AA can emit light to display images, while the non-display area BB does not emit light.

[0047] See in this example. Figure 2 and Figure 3 The display panel PNL may include a display substrate DSP, which includes a driving backplane BP and multiple light-emitting devices LDs disposed on one side of the driving backplane BP, wherein:

[0048] The driving backplane (BP) has a driving circuit that drives the light-emitting diode (LD) to emit light to display an image. In some embodiments of this disclosure, the driving backplane (BP) may include a substrate (SBT) and a driving layer (DRL) stacked on one side of the substrate (SBT), wherein the driving layer (DRL) has a driving circuit, and the substrate (SBT) may be a flat plate structure.

[0049] In one embodiment of this disclosure, the substrate SBT can be an organic material, such as polymethyl methacrylate (PMMA), polyvinyl alcohol (PVA), polyvinyl phenol (PVP), polyether sulfone (PES), polyimide, polyamide, polyacetal, polycarbonate (PC), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), or combinations thereof. In one embodiment of this disclosure, the substrate SBT can be a flexible substrate SBT, for example, the substrate SBT material can be polyimide (PI). The substrate SBT can also be a composite of multiple materials. For example, in one embodiment of this disclosure, the substrate SBT may include a bottom film, a pressure-sensitive adhesive layer, a first polyimide layer, and a second polyimide layer sequentially stacked.

[0050] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 1-3 The driving circuit may include pixel circuit PDC located in the display area AA and peripheral circuits located in the non-display area BB. The pixel circuit PDC can be a 7T1C, 8T1C, or similar structure, as long as it can drive the light-emitting device (LD) to emit light; its structure is not specifically limited here. Here, nTmC indicates that one pixel circuit PDC includes n thin-film transistors (represented by the letter "T") and m capacitors (represented by the letter "C"). The number of pixel circuit PDCs can be the same as the number of light-emitting devices (LDs), and they are connected one-to-one with each LD. Of course, multiple LDs can be connected to the same pixel circuit PDC; this is not specifically limited here. The peripheral circuits are connected to the pixel circuit PDC and are used to input driving signals to the pixel circuit PDC to control the light-emitting device (LD) to emit light. The peripheral circuits may include gate driving circuits and light-emitting control circuits, and may also include other circuits; the specific structure of the peripheral circuits is not specifically limited here.

[0051] Furthermore, the thin-film transistor can be selected from top-gate thin-film transistors, bottom-gate thin-film transistors, or dual-gate thin-film transistors; the active layer of the thin-film transistor can be made of amorphous silicon semiconductor material, low-temperature polycrystalline silicon semiconductor material, metal oxide semiconductor material, organic semiconductor material, carbon nanotube semiconductor material, or other types of semiconductor material; the thin-film transistor can be an N-type thin-film transistor or a P-type thin-film transistor.

[0052] It is understood that any two transistors in a pixel driving circuit can be of the same or different types. Exemplarily, in some embodiments, some transistors in a pixel driving circuit can be N-type transistors and some transistors can be P-type transistors. Further exemplarily, in other embodiments, in a pixel driving circuit, the active layer material of some transistors can be low-temperature polycrystalline silicon (LTPS) semiconductor material, and the active layer material of some transistors can be metal-oxide-semiconductor (MODS) semiconductor material. In some embodiments of this disclosure, the thin-film transistor is a LPS transistor. In other embodiments of this disclosure, some thin-film transistors are LPS transistors, and some thin-film transistors are MODS transistors.

[0053] In one example, see Figure 4 The driving layer DRL may include a semiconductor layer SCL, a gate insulating layer GI, a gate layer GT, an interlayer dielectric layer ILD, a source / drain metal layer SD, and a planarization layer PLN, all stacked on the substrate SBT. Each thin-film transistor and storage capacitor can be formed from the semiconductor layer SCL, gate insulating layer GI, gate layer GT, interlayer dielectric layer ILD, and source / drain metal layer SD. The positional relationship of each layer can be determined based on the thin-film transistor's layer structure. Furthermore, the semiconductor layer SCL can be used to form the channel region of the transistor, as well as the first and second electrodes located on both sides of the channel region. If necessary, it can also be conductive to form partial traces or conductive structures. The gate layer GT can be used to form one or more gate layer traces such as scan traces, reset control traces, and light emission control traces. It can also be used to form the gate of the transistor, or to form part or all of the electrode plates of the storage capacitor. The source / drain metal layer SD can be used to form data traces, drive power supply voltage traces, or other source / drain metal layer traces. It can also be used to form part of the electrode plates of the storage capacitor. Of course, in other embodiments of this disclosure, the driving layer DRL may also include other film layers as needed, such as a light-shielding layer, an inorganic buffer layer BUF, etc., located between the semiconductor layer SCL and the substrate SBT. As needed, any one of the above-mentioned semiconductor layer SCL, gate layer GT, source / drain metal layer SD, etc., may be multiple layers. For example, the driving layer DRL may include two different semiconductor layers SCL, or two or three source / drain metal layers SD, or two or three gate layers GT. Correspondingly, the insulating film layers in the driving layer DRL (such as gate insulating layer GI, interlayer dielectric layer ILD, planarization layer PLN, etc.) may be increased or decreased adaptively, or new insulating film layers may be added as needed.

[0054] As an example, see Figure 4The driving layer DRL may include an inorganic buffer layer BUF, a semiconductor layer SCL, a gate insulating layer GI, a gate layer GT, an interlayer dielectric layer ILD, a source / drain metal layer SD, and a planarization layer PLN, sequentially stacked on the surface of the substrate SBT. The resulting thin-film transistor is a top-gate type thin-film transistor. In other examples, the driving layer may include an inorganic buffer layer, a gate layer, a gate insulating layer, a semiconductor layer, a source / drain metal layer, and a planarization layer, sequentially stacked on the surface of the substrate. The resulting thin-film transistor is a bottom-gate type thin-film transistor. In other examples, the driving layer may also include a dual-gate type thin-film transistor, etc.

[0055] It is understood that the above examples of the driving backplane DBP are merely one possible embodiment of the driving backplane DBP in this disclosure. In other embodiments of this disclosure, the driving backplane DBP may also have other structures, such as a passive driving glass substrate, a silicon-based driving substrate, etc.

[0056] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 1-4 The display substrate DSP also includes a pixel layer PIXL, which is located on the surface of the driving layer DRL away from the substrate SBT. The light-emitting device LD can be located in the pixel layer PIXL of the display area AA. It can be an OLED (organic light-emitting diode) using organic light-emitting materials, or a MiniLED (sub-millimeter light-emitting diode with a size of 100μm-200μm), Micro LED (micro light-emitting diode with a size of no more than 100μm), and LED (light-emitting diode with a size of more than 200μm) using inorganic light-emitting materials. There are no special limitations here, as long as it can emit light.

[0057] In one embodiment of this disclosure, taking an OLED as an example, the light-emitting device (LD) is described below. Figure 4 The light-emitting device (LD) may include a pixel electrode layer (PEL), a light-emitting functional layer (EFL), and a common electrode layer (COML) stacked sequentially along the direction away from the substrate SBT. By applying an electrical signal to the pixel electrode layer PEL and the common electrode layer COML, the light-emitting functional layer EFL can be excited to emit light; the specific light-emitting principle will not be detailed here. The pixel electrode layer PEL can serve as the anode, and the common electrode layer COML can serve as the cathode; both can be made of conductive materials such as metals or metal oxides. The light-emitting functional layer EFL may include a hole injection layer, a hole transport layer, a light-emitting material layer, an electron transport layer, and an electron injection layer stacked sequentially along the direction away from the substrate SBT. Of course, other structures can also be used, as long as they can cooperate with the pixel electrode layer PEL and the common electrode layer COML to emit light.

[0058] See Figure 4The pixel layer PIXL may further include a pixel definition layer PDL separating the light-emitting devices (LDs). The PDL may be disposed on the same surface as the driving layer DRL, for example, on the surface of the planarization layer PLN away from the substrate SBT, along with the pixel electrode layer PEL. Simultaneously, the thickness of the pixel definition layer PDL is greater than the thickness of the pixel electrode layer PEL, and it covers a portion of each pixel electrode layer PEL. The pixel definition layer PDL has pixel openings exposing each pixel electrode layer PEL. The light-emitting functional layer EFL and the common electrode layer COML are sequentially stacked on the pixel electrode layer PEL within the pixel openings. The pixel definition layer PDL covers the edges of the pixel electrode layer PEL and exposes at least a portion of the internal region of the pixel electrode layer PEL, so that the pixel definition layer PDL can effectively define the actual effective area of ​​the pixel electrode layer PEL (the area directly connected to the light-emitting functional unit), thereby defining the light-emitting area and light-emitting region of the light-emitting device LD.

[0059] In one embodiment of this disclosure, the light-emitting material layer of the light-emitting functional layer (EFL) can have an intermittent structure, allowing the light-emitting devices (LDs) to emit monochromatic light, and different LDs can emit different colors. The common electrode layer (COML) is a continuous, solid layer structure, with the portion of the COML inside the pixel opening covering the EFL, and the portion outside the pixel opening covering the pixel definition layer (PDL). Of course, in other embodiments, the light-emitting material layer of the EFL can also be a solid layer structure, allowing all LDs to emit the same color. In this case, different color filters are needed to achieve color display.

[0060] In one embodiment of this disclosure, the range of each light-emitting device (LD) can be defined by a pixel definition layer (PDL). Specifically, the range of the pixel opening is the range of the light-emitting device (LD), that is, the shape and size of the orthographic projection of the pixel opening onto the display substrate (DSP) are the same as the shape and size of the orthographic projection of the light-emitting device (LD) onto the DSP. Simultaneously, the shape of the pixel opening is the shape of its orthographic projection onto the DSP, which can be a rectangle or other polygon, or a circle, etc. In this document, the definition of the shape and size of the light-emitting device (LD) is described based on the shape and size of the pixel opening; for example, the size of the light-emitting device (LD) is the size of its pixel opening.

[0061] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 2-4 The display substrate DSP may also include a TFE encapsulation layer, which covers each light-emitting device (LD) to block external water and oxygen, preventing them from corroding the LD. For example, the TFE encapsulation layer can be a thin-film encapsulation method; see [reference needed]. Figure 4The encapsulation layer TFE may include a first inorganic layer CVD1, an organic layer IJP, and a second inorganic layer CVD2. The first inorganic layer CVD1 covers each light-emitting device (LD), specifically, it covers the surface of the common electrode layer COML away from the driving backplane BP. The material of the first inorganic layer CVD1 may include inorganic insulating materials such as silicon nitride and silicon oxide. The organic layer IJP is disposed on the surface of the first inorganic layer CVD1 away from the driving backplane BP, and its boundary is defined within the boundary of the first inorganic layer CVD1 by a barrier dam located in the non-display area BB. Simultaneously, the boundary of the orthographic projection of the organic layer IJP onto the driving backplane BP is located in the non-display area BB, ensuring that the organic layer IJP covers each light-emitting device (LD). The second inorganic layer CVD2 covers both the organic layer IJP and the first inorganic layer CVD1 not covered by the organic layer IJP. The second inorganic layer CVD2 blocks water and oxygen intrusion, and planarization is achieved by using the organic layer IJP, which is fluid before curing. The material for the second inorganic layer CVD2 can include inorganic insulating materials such as silicon nitride and silicon oxide.

[0062] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 3 and Figure 4 The display panel includes a touch functional layer (TFL), which is located on the light-emitting surface of the display substrate DSP. It is understood that the touch functional layer (TFL) is located on the surface of the encapsulation layer (TFE) away from the pixel layer (PIXL). The touch functional layer (TFL) may include touch electrodes (TE). Touch actions cause changes in the signal of the touch electrodes (TE), thereby determining the touch position. The touch functional layer (TFL) can employ a capacitive touch structure or a resistive structure; its touch principle is not specifically limited here.

[0063] In one example disclosed herein, the touch functional layer TFL employs FMLOC (Flexible Multi Layer OnCell, abbreviated as FMLOC) technology. FMLOC technology refers to fabricating a metal mesh electrode layer on the encapsulation layer of the display substrate for touch control, eliminating the need for an external TSP (touchscreen). This technology can reduce the thickness of the display panel, which is beneficial for folding; at the same time, without the need for fit tolerances, it can reduce the bezel width of the display panel.

[0064] In the touch display panel disclosed herein, see Figure 5 ( Figure 5 for Figure 6(A cross-sectional view from P1 / P2 perspective) The touch functional layer TFL may include a first touch metal layer TMA, a touch insulating layer TLD, and a second touch metal layer TMB, which are sequentially stacked on the encapsulation layer TFE; the second touch metal layer TMB is located on the side of the first touch metal layer TMA away from the substrate SBT. One or both of the first touch metal layer TMA and the second touch metal layer TMB are used to form the touch electrode TE.

[0065] Optionally, see Figure 5 A touch buffer layer TOL may also be included between the first touch metal layer TMA and the thin-film encapsulation layer TFE. The material of the touch buffer layer TOL can be an inorganic material, such as silicon nitride, silicon oxide, or silicon oxynitride. It is understood that in other embodiments of this disclosure, the outermost inorganic encapsulation layer of the thin-film encapsulation layer TFE can also be reused as the touch buffer layer TOL.

[0066] Optionally, a touch protection layer (not shown in the figure) may be included on the side of the second touch metal layer TMB away from the substrate SBT. The material of the touch protection layer can be an inorganic material, such as silicon nitride, silicon oxide, or silicon oxynitride. It is understood that in other embodiments of this disclosure, an organic layer may also be directly disposed on the side of the second touch metal layer TMB away from the substrate SBT, such as an organic cover plate or an optical adhesive.

[0067] The shape and position of the touch electrode TE can be set according to the needs of the touch display panel, so that the touch functional layer TFL can determine the touch position based on the principle of self-capacitance or mutual capacitance. The touch functional layer TFL can also be used to form touch leads to transmit the signals generated by the touch electrode TE in response to the touch action.

[0068] For example, in one embodiment of this disclosure, see [link to relevant documentation]. Figure 5 and Figure 6The touch electrode TE includes multiple row touch electrodes TE1 extending along the row direction H1 and multiple column touch electrodes TE2 extending along the column direction H2. The row touch electrodes TE1 are arranged sequentially along the column direction H2, and the column touch electrodes TE2 are arranged sequentially along the row direction H1. Each column touch electrode TE2 is disposed on the second touch metal layer TMB and includes multiple column touch sub-electrodes TE21 arranged sequentially along the column direction H2, with the ends of adjacent column touch sub-electrodes TE21 interconnected. Thus, the column touch electrode TE2 is completely disposed on the second touch metal layer TMB. Each row touch electrode TE1 includes multiple row touch sub-electrodes TE11 arranged sequentially along the row direction H1. The row touch sub-electrodes TE11 are disposed on the second touch metal layer TMB, and their edges are adjacent to the edges of the column touch sub-electrodes TE21. In any row touch electrode TE1, two adjacent row touch sub-electrodes TE11 are isolated by column touch electrodes TE2, and two adjacent row touch sub-electrodes TE11 are connected by a bridging connection TMC located in the first touch metal layer TMA.

[0069] For example, in another embodiment of this disclosure, the touch electrode TE includes a plurality of row touch electrodes extending along the row direction and a plurality of column touch electrodes extending along the column direction. The row touch electrodes are arranged sequentially along the column direction, and the column touch electrodes are arranged sequentially along the row direction. Each row touch electrode is disposed on the second touch metal layer and includes a plurality of row touch sub-electrodes arranged sequentially along the row direction, with the ends of adjacent row touch sub-electrodes connected to each other. Thus, the row touch electrodes are completely disposed on the second touch metal layer. Each column touch electrode includes a plurality of column touch sub-electrodes arranged sequentially along the column direction, the column touch sub-electrodes are disposed on the second touch metal layer, and their edges are adjacent to the edges of the row touch sub-electrodes. In any column touch electrode, adjacent column touch sub-electrodes are isolated by the row touch electrodes, and adjacent column touch sub-electrodes are connected by a bridging connection located on the first touch metal layer.

[0070] For example, in another embodiment of this disclosure, the touch electrode includes a plurality of row touch electrodes extending in a rectangular pattern along rows and a plurality of column touch electrodes extending in a column direction. The row touch electrodes are arranged sequentially along the column direction, and the column touch electrodes are arranged sequentially along the row direction. One of the row touch electrodes and the column touch electrodes is disposed on a first touch metal layer, and the other is disposed on a second touch metal layer. Thus, the row touch electrodes and the column touch electrodes overlap and form a mutual capacitance. When the touch functional layer is pressed by a touch object such as a finger, the mutual capacitance between the row touch electrodes and the column touch electrodes changes.

[0071] As another example, in another embodiment of this disclosure, the touch electrode TE array is distributed on the second touch metal layer TMB, and the touch leads extend through the first touch metal layer TMA to be connected to each touch electrode TE through vias.

[0072] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 6 and Figure 7 The touch electrode TE is a touch electrode formed by multiple intersecting metal traces TMW to create a metal mesh structure. There is a gap between the metal traces TMW of the row touch electrode TE1 and the metal traces TMW of the column touch electrode TE2.

[0073] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 1-14 In the display area AA, the display panel PNL has multiple arrayed light-emitting areas LZ and spacer areas SR surrounding the light-emitting areas LZ. Each light-emitting area LZ contains a light-emitting device LD. The metal traces TMW of the touch electrode TE are located in the spacer areas SR. In other words, the orthographic projection of the metal traces TMW of the touch electrode TE onto the display substrate DSP does not overlap with the orthographic projection of the light-emitting device LD onto the display substrate DSP. This prevents interference with the light transmittance of the display panel PNL and the pixel apertures. The light-emitting area LZ is the region containing the light-emitting device LD, and the size of the light-emitting area LZ can be the same as the size of the light-emitting device LD.

[0074] In one embodiment of this disclosure, the touch electrode TE of the metal mesh structure includes a plurality of mesh openings, each mesh opening exposing at least one light-emitting device (LD). It is understood that the orthographic projection of the mesh opening onto the display substrate DSP overlaps the orthographic projection of at least one light-emitting device LD onto the display substrate DSP. For example, the orthographic projection of the mesh opening onto the display substrate DSP overlaps the orthographic projection of one light-emitting device LD onto the display substrate DSP (in other words, one mesh opening corresponds to one light-emitting device LD). As another example, the orthographic projection of the mesh opening onto the display substrate DSP overlaps the orthographic projections of two light-emitting devices LD onto the display substrate DSP (in other words, one mesh opening corresponds to two light-emitting devices LD). As yet another example, the orthographic projection of the mesh opening onto the display substrate DSP overlaps the orthographic projections of four light-emitting devices LD onto the display substrate DSP (in other words, one mesh opening corresponds to four light-emitting devices LD). Of course, in other examples, the orthographic projection of the mesh opening onto the display substrate DSP may overlap the orthographic projections of other, not shown, number of light-emitting devices LD onto the display substrate DSP.

[0075] In related technologies, when an external point light source is incident on the metal mesh structure of a display panel based on flexible multi-layer on cell (FMLOC) technology, it will be reflected by the metal mesh structure, thus creating a visibility phenomenon.

[0076] After analysis by the applicant, it was concluded that the metal mesh of the FML display panel is generally distributed periodically in space according to the smallest periodic unit. If an external point light source is incident on the display panel PML, the diffraction fringes generated by a single period, after spatial periodic modulation interference, produce bright and dark fringes, thus creating a visible phenomenon (as is well known, the conditions for interference are: the light frequencies are the same, the vibration directions are the same, and the phase difference is constant. For a point light source, it is itself coherent light, while the trace width of the FML metal mesh is about 4-6 micrometers, and the pattern of the smallest unit period is about 50 micrometers to several hundred micrometers, and the smallest period is arranged periodically. External point light sources easily produce diffraction, and due to their spatial periodicity, they easily produce interference modulation. If the brightness of the diffraction fringes of a single aperture is constant, then the brightness of the diffraction fringes produced by periodic interference is the square of the number of periods of the brightness of a single diffraction fringe). Furthermore, the FML metal mesh also has an adverse effect on the color shift at a large viewing angle.

[0077] In related technologies, the visibility of FMLOCs is improved by reducing the periodicity of the metal mesh. However, reducing the periodicity of the metal mesh affects the touch functionality of the display panel's PNL. Simultaneously, to mitigate the large viewing angle distortion caused by the FMLOC metal mesh, the horizontal distance between the metal traces within the metal mesh and the light-emitting diode (LD) is increased. The combination of these two requirements makes wiring the FMLOC metal mesh difficult.

[0078] To resolve at least one of the above problems, see [link / reference]. Figures 7-13This disclosure provides a lens layer LI on the side of the touch functional layer TFL away from the encapsulation layer TFE. In this example, the lens layer LI has a first lens structure LI1 and a lens blocking structure LIZ, the refractive index of the first lens structure LI1 being different from the refractive index of the lens blocking structure LIZ. The first lens structure LI1 is located on the side of the touch functional layer TFL away from the display substrate DSP, and the lens blocking structure LIZ surrounds the first lens structure LI1. The first lens structure LI1 has an uneven surface located on the side of the touch functional layer TFL away from the display substrate DSP, and the orthographic projection of the uneven surface on the display substrate DSP at least partially coincides with the orthographic projection of the metal trace TMW on the display substrate DSP. In this way, by setting an uneven surface above the side of the touch metal trace TMW away from the display substrate DSP (understandably, the uneven surface is located between the touch metal trace TMW and the external light source), the direction of the light originally incident on the touch metal trace TMW from the outside can be changed, so that at least some of the light has different directions (total internal reflection of some large-angle incident light, and changing the reflection direction of another part of the light). After the direction of the outgoing light is changed, the light reflected by the FMLOC metal mesh will not be able to achieve multiple cycles of mutual interference. Therefore, the visibility of FMLOC will be greatly reduced.

[0079] In one example disclosed herein, see Figure 7 and Figure 8 The lens barrier structure LIZ can be formed by applying adhesive and curing. At this time, the lens barrier structure LIZ will fill the gap of the metal trace TMW and be reused as a touch protection layer.

[0080] In one example disclosed herein, see Figure 7 and Figure 8 The orthographic projection of this uneven surface onto the display substrate DSP completely covers the orthographic projection of each metal trace TMW onto the display substrate DSP. In this way, all reflected light from external light sources passing through the touch metal traces is modulated by the first lens structure LI1, further reducing the FMLOC visibility phenomenon. It can be understood that the orthographic projection of this uneven surface onto the display substrate DSP is not less than the orthographic projection of the corresponding metal trace TMW onto the display substrate DSP.

[0081] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 9 and Figure 10 The first lens structure LI1 is used to change the direction of incident light rays onto the touch metal trace TMW, and to change the direction of reflected light rays reflected by the touch metal trace TMW. See also Figure 7 and Figure 8The first lens structure LI1 can be a mesh structure with multiple cutouts. Each cutout can correspond to only one light-emitting device (LD), and the shape of the cutout can be the same as the shape of the light-emitting device (LD). The orthographic projection of the cutout on the display substrate DSP can be larger than the orthographic projection of the light-emitting device (LD) on the display substrate DSP. In other words, the orthographic projection of the first lens structure LI1 on the display substrate DSP does not overlap with the orthographic projection of the light-emitting device (LD) on the display substrate DSP. It can be understood that the first lens structure LI1 is located in the blocking area, and the arrangement of the first lens structure LI1 will not interfere with the light emission of the light-emitting device (LD). Of course, in other embodiments of this disclosure, one cutout can also correspond to multiple light-emitting devices (LDs).

[0082] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 7-10 The first lens structure LI1 includes multiple first sub-lens structures LI11 and multiple second sub-lens structures (not shown in the diagram). The first sub-lens structures LI11 extend along the column direction, and the multiple first sub-lens structures LI11 are arranged sequentially along the row direction. The second sub-lens structures extend along the row direction, and the multiple second sub-lens structures are arranged sequentially along the column direction. The first sub-lens structures LI11 correspond to the column touch electrodes TE2, and the second sub-lens structures correspond to the row touch electrodes TE1. This arrangement allows uneven surfaces to better cover the metal traces TMW without interfering with the light emission of the light-emitting device LD, ensuring a high aperture ratio.

[0083] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 11-13 The spacer SR between any two adjacent light-emitting areas LZ has a first lens structure LI1. It can be understood that the first lens structure LI1 is present between any two light-emitting devices LD; in other words, any light-emitting device LD is surrounded by the first lens structure LI1. In this disclosure, by setting the first lens structure LI1 between any two light-emitting devices LD, the direction of the light incident from the external light source onto the display panel PNL (the direction of the external light source around any light-emitting device LD) can be further changed, reducing the possibility of periodic light appearing in the blocking area, and thus further mitigating the FMLOC visibility phenomenon.

[0084] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 7-13At least some of the first sub-lens structures LI11 are asymmetrical, and at least some of the second sub-lens structures are asymmetrical. This means that at least some of the first sub-lens structures LI11 have different structures, and at least some of the second sub-lens structures have different structures. This asymmetrical arrangement disperses the direction of external light incident on each touch metal trace TMW, further reducing the possibility of periodic light and thus further mitigating the FMLOC visibility phenomenon. For example, two of the first sub-lens structures LI11 are asymmetrical, and two of the second sub-lens structures are asymmetrical. Another example is four of the first sub-lens structures LI11 being asymmetrical, and four of the second sub-lens structures being asymmetrical. Yet another example is all the first sub-lens structures LI11 being asymmetrical, and all the second sub-lens structures being asymmetrical. This further disperses the direction of external light incident on each touch metal trace TMW, further reducing the possibility of periodic light and thus further mitigating the FMLOC visibility phenomenon (in this case, the first sub-lens structure LI11 can be considered a reflective grating). In this disclosure, asymmetry refers to structural differences (structural differences include identical shapes but different sizes, as well as different shapes). The symmetry in this document can be centered on the light-emitting device (LD) or on the display panel (PNL).

[0085] In one embodiment of this disclosure, the first lens structure LI1 has a scattering unit LISU, which has an uneven surface. In one example, the scattering unit LISU may protrude towards the side away from the display substrate DSP. For example, see... Figure 9 The longitudinal cross-section of the LISU scattering unit can be triangular (this triangle is isosceles, with base angles ranging from 10° to 60° and a height of 1-10 μm). For another example, see... Figure 10 The longitudinal cross-section of the scattering unit LISU can be triangular, with the normals of the two sides of the triangle gradually changing and the two sides concave towards the center. This can be understood as the two sides of the triangle being curved surfaces, and the openings of these curved surfaces facing away from the center of the triangle (the radius of these curved surfaces can be 10-30 μm). As another example, the longitudinal cross-section of the scattering unit LISU can be trapezoidal. As another example, the longitudinal cross-section of the scattering unit LISU can be curved (the height of the scattering unit LISU is 1-10 μm, and the radius of the curved surface can be 5-30 μm). See also... Figure 7 The longitudinal cross-section of the scattering unit LISU can be an arc-shaped surface. Of course, in other embodiments, the scattering unit LISU can have other structures not shown.

[0086] In another embodiment of this disclosure, see Figures 7-13 The first lens structure LI1 has at least two scattering units LISU, which are arranged sequentially along the width direction of the corresponding touch metal trace TMW, forming an uneven surface. For example, the first lens structure LI1 has two scattering units LISU. Another example is that the first lens structure LI1 has three scattering units LISU. Yet another example is that the first lens structure LI1 has five scattering units LISU. Of course, in other examples, the number of scattering units LISU in the first lens structure LI1 may be other numbers not shown. It is understood that the first lens structure LI1 includes a plurality of first sub-lens structures LI11 arranged sequentially along the column direction and a plurality of second sub-lens structures arranged sequentially along the row direction. The first sub-lens structure LI11 has at least two scattering units LISU, which are arranged sequentially along the width direction of the touch metal trace TMW, and the extending direction of the scattering unit LISU is the same as the extending direction of the first sub-lens structure LI11. The second sub-lens structure has at least two scattering units LISU, which are arranged sequentially along the width direction of the touch metal trace TMW. The extending direction of the scattering units LISU is the same as the extending direction of the second sub-lens structure. For example, the first sub-lens structure LI11 has two scattering units LISU, and the second sub-lens structure has two scattering units LISU. As another example, the first sub-lens structure LI11 has four scattering units LISU, and the second sub-lens structure has four scattering units LISU. Of course, in other examples, the number of scattering units LISU can also be other numbers not shown.

[0087] In one embodiment of this disclosure, the individual scattering units LISU are asymmetrical. In one example, the individual scattering units LISU are asymmetrical within the same first sub-lens structure LI11 or the same second sub-lens structure. In another example, the individual scattering units LISU are asymmetrical within multiple first sub-lens structures LI11 or multiple second sub-lens structures. In yet another example, the individual scattering units LISU are asymmetrical within the same first sub-lens structure LI11 or the same second sub-lens structure, and also asymmetrical within multiple first sub-lens structures LI11 or multiple second sub-lens structures. By setting asymmetrical scattering units LISU, the direction in which external light is incident on each touch metal trace TMW can be further dispersed, further reducing the possibility of periodic light rays, and thus further mitigating the FMLOC visibility phenomenon. For example, taking a first lens structure LI1 with two scattering units LISU, where each scattering unit LISU is an arc-shaped surface, in the first lens structure LI1, the radius of one first sub-lens structure LI11 can be 10 μm, and the radius of the other first sub-lens structure LI11 can be 12 μm. In one lens structure, the thickness of one scattering unit LISU is 2.5 μm, and the thickness of the other scattering unit LISU is 3.5 μm.

[0088] In one embodiment of this disclosure, there may be gaps between adjacent scattering units (LISUs). In this case, the orthographic projection of the uneven surface on the display substrate DSP coincides with the orthographic projection of the metal trace (TMW) on the display substrate DSP.

[0089] In one embodiment of this disclosure, the refractive index of the first lens structure LI1 is different from that of the lens blocking structure LIZ. This causes incident light to be refracted at different angles at the interface between the first lens structure LI1 and the lens blocking structure LIZ, resulting in a disordered light ray. In one example, the refractive index of the first lens structure LI1 is greater than that of the lens blocking structure LIZ. In another example, the refractive index of the first lens structure LI1 is less than that of the lens blocking structure LIZ.

[0090] In one example of this disclosure, the uneven surface may be close to the display substrate DSP setup. In other examples, the uneven surface may be away from the display substrate DSP setup.

[0091] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 11-14The lens layer LI also has multiple second lens structures LI2, each corresponding to a single light-emitting device LD. The multiple second lens structures LI2 are separated by a lens blocking structure LIZ. The orthogonal projection of the second lens structure LI2 on the touch function layer TFL completely covers the orthogonal projection of the light-emitting device LD on the touch function layer TFL. The light emitted by the light-emitting device LD exits through the second lens structure LI2.

[0092] In one example, see Figure 12 The second lens structure LI2 has a first surface Q1 and a second surface Q2 disposed opposite to each other, and a first connecting surface Q3 connecting the first surface Q1 and the second surface Q2. The first surface Q1 is disposed on the side of the second surface Q2 away from the light-emitting device LD. The normal of the first connecting surface Q3 gradually changes and the first connecting surface Q3 is concave towards the center of the second lens structure LI2. At the first connecting surface Q3, the refractive index of the second lens structure LI2 is greater than the refractive index of the lens blocking structure LIZ. It can be understood that the first connecting surface Q3 is a curved surface. The disclosed design includes a second lens structure LI2. Based on the characteristic that the refractive index of the second lens structure LI2 at the first connecting surface Q3 is greater than the refractive index of the lens blocking structure LIZ, it serves two purposes: firstly, it can converge the light emitted by the light-emitting device LD, reducing large-angle light; secondly, it allows some of the large-angle light emitted by the light-emitting device LD to undergo total internal reflection at the interface between the second lens structure LI2 and the lens blocking structure LIZ. This reduces the amount of large-angle light incident on the touch metal surface, thereby mitigating the large-angle color shift phenomenon caused by the FMLOC metal mesh. (Understandably, when the incident angle of the large-angle light emitted by the light-emitting device LD is sufficiently large, total internal reflection will occur at the first connecting surface Q3, preventing this totally internalized large-angle light from incident on the surface of the touch metal trace TMW, thus improving the large-angle color shift phenomenon.) In one example, the height of the second lens structure LI2 can be 1-15 μm, the major axis of the first connecting surface Q3 is 10-60 μm, and the minor axis is 5-30 μm. Specifically, the height of the second lens structure LI2 can be 6μm, and the major axis of the first connecting surface Q3 is 25μm and the minor axis is 12μm.

[0093] In this example, the distance between the first surface Q1 and the display substrate DSP is greater than the distance between the second touch metal layer TMB and the display substrate DSP, which is more conducive to improving the large-viewing-angle color deviation phenomenon.

[0094] In this example, the refractive index of the first lens structure LI1 is the same as that of the second lens structure, which facilitates fabrication.

[0095] In this example, the refractive index of the second lens structure LI2 is greater than the refractive index of the lens blocking structure LIZ.

[0096] In another example, see Figure 13 The second lens structure LI2 has a first curved surface Q4 and a second curved surface Q5 arranged opposite to each other, and a second connecting surface (not labeled in the figure) connecting the first curved surface Q4 and the second curved surface Q5. The first curved surface Q4 is located on the side of the second curved surface Q5 away from the light-emitting device LD. At the first curved surface Q4 and the second curved surface Q5, the refractive index of the second lens structure LI2 is greater than the refractive index of the lens blocking structure LIZ. The groove formed by the first curved surface Q4 opens towards the side away from the display substrate DSP, and the groove formed by the second curved surface Q5 opens towards the side away from the display substrate DSP (it can be understood that the opening direction of the first curved surface Q4 is the same as the opening direction of the second curved surface Q5). The thickness of the edge of the second lens structure LI2 is less than the thickness of the center of the second lens structure LI2. The edge normal of the first curved surface Q4 gradually changes, and the middle part of the first curved surface Q4 can be a plane. The normal of the second curved surface Q5 gradually changes. The thickness at this point refers to the distance between a point on the first curved surface Q4 and a point on the second curved surface Q5 on the same normal of the second lens structure LI2. In one example, the edge radius of the first curved surface Q4 can be 25-100 μm, the radius of the second curved surface Q5 can be 20-50 μm, the height of the center of the second lens structure LI2 is 1-15 μm, and the distance between the edge of the first curved surface Q4 and the display substrate DSP is 1-15 μm. For example, the radius of the first curved surface Q4 can be 37 μm, the radius of the second curved surface Q5 can be 28 μm, the height of the center of the second lens structure LI2 is 2 μm, and the distance between the edge of the first curved surface Q4 and the display substrate DSP is 7 μm.

[0097] See in this example. Figure 13 The distance between the edge of the first curved surface Q4 and the display substrate DSP is greater than the distance between the second touch metal layer TMB and the display substrate DSP; the distance between the edge of the second curved surface Q5 and the display substrate DSP is greater than the distance between the second touch metal layer TMB and the display substrate DSP. In this way, when the light emitted by the light-emitting device LD passes through the second lens structure LI2, it will also avoid the touch metal trace TMW, further improving the large-viewing-angle color shift phenomenon.

[0098] In this example, at the second connecting surface, the refractive index of the second lens structure LI2 can be greater than the refractive index of the lens blocking structure LIZ. In another example, see... Figure 13 At the second connecting surface, the refractive index of the second lens structure LI2 can be equal to the refractive index of the lens blocking structure LIZ. In this case, the refractive index of the first lens structure LI1 can be less than the refractive index of the second lens structure LI2. It is understandable that the lens blocking structure LIZ is a double-layer structure, and the refractive indices of each layer are different.

[0099] In one embodiment of this disclosure, see [link to relevant documentation]. Figures 11-13 The lens layer LI also has a third lens structure LI3; the third lens structure LI3 is disposed on the side of the first lens structure LI1 and the second lens structure LI2 away from the display substrate DSP, and the third lens structure LI3 covers the first lens structure LI1, the second lens structure LI2, and the lens blocking structure LIZ. The refractive index of the third lens structure LI3 can be the same as that of the second lens structure LI2; in other examples, the refractive index of the third lens structure LI3 can be different from that of the second lens structure LI2.

[0100] In one embodiment of this disclosure, when the refractive index of the third lens structure LI3 is the same as that of the second lens structure LI2 and the first lens structure LI1, the three can be fabricated in the same step. When the refractive index of the third lens structure LI3 is different from that of the second lens structure LI2 and the first lens structure LI1, the refractive index of the third lens structure LI3 can be the same as that of the lens blocking structure LIZ.

[0101] In this disclosure, the FMLOC metal mesh can prioritize meeting touch requirements, thus increasing the freedom of touch routing and allowing for the design of better wiring diagrams.

[0102] by Figure 12 For example, the fabrication process of the lens layer LI in this disclosure will be described:

[0103] First, a second lens structure LI2 is fabricated on the touch buffer layer TOL. Then, a lens blocking structure LIZ is filled around the second lens structure LI2. A touch functional layer TFL is set on the lens blocking structure LIZ. Then, the lens blocking structure LIZ is filled again on the side of the touch functional layer TFL away from the substrate SBT. A groove is set on the lens blocking structure LIZ. Then, a material with a refractive index different from that of the lens blocking structure LIZ is used to fill the groove. Finally, a third lens structure LI3 is fabricated on it.

[0104] In one embodiment of this disclosure, the second lens structure LI2 is symmetrical along the center line of the light-emitting device LD, so that light rays emitted by the light-emitting device LD at the same angle undergo the same optical path modulation on the second lens structure.

[0105] In one embodiment of this disclosure, the display panel PNL further includes a polarizer POL and a cover plate COV located on the side of the lens layer LI away from the display substrate DSP, wherein the polarizer POL is disposed close to the lens layer LI.

[0106] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A display panel, characterized in that, It has a display area and a non-display area, wherein the display area has multiple light-emitting areas arranged in an array and a spacing area located between any two adjacent light-emitting areas; The display panel includes a display substrate, a touch function layer, and a lens layer stacked in sequence. The display substrate has multiple light-emitting devices located in the light-emitting area; the touch function layer has touch metal traces located in the spacing area; the lens layer has a first lens structure and a lens blocking structure, with the lens blocking structure surrounding the first lens structure; the refractive index of the first lens structure is different from the refractive index of the lens blocking structure. The first lens structure has an uneven surface located on the side of the touch metal trace away from the display substrate, and the orthographic projection of the uneven surface on the display substrate at least partially overlaps with the orthographic projection of the touch metal trace on the display substrate. The orthographic projection of the first lens structure on the touch functional layer does not overlap with the orthographic projection of the light-emitting device on the touch functional layer. The orthographic projection of the uneven surface on the display substrate completely covers the orthographic projection of the touch metal trace on the display substrate; The first lens structure includes a plurality of first sub-lens structures arranged sequentially along the column direction, and a plurality of second sub-lens structures arranged sequentially along the row direction. Along the column direction, at least some of the first sub-lens structures are asymmetrical; Along the direction of travel, at least some of the second sub-lens structures are asymmetrical.

2. The display panel according to claim 1, characterized in that, In the interval region, the first lens structure is present between any two adjacent light-emitting areas.

3. The display panel according to claim 1 or 2, characterized in that, The first lens structure has at least two scattering units, which are arranged sequentially along the width direction of the touch metal trace, and the scattering units have the uneven surface.

4. The display panel according to claim 3, characterized in that, The lens layer also has a plurality of second lens structures, each of which corresponds to a plurality of light-emitting devices; the plurality of second lens structures are spaced apart by the lens blocking structure, and the orthogonal projection of the second lens structure on the touch function layer completely covers the orthogonal projection of the light-emitting device on the touch function layer, and the light emitted by the light-emitting device exits through the second lens structure. The second lens structure has a first surface and a second surface disposed opposite to each other, and a first connecting surface connecting the first surface and the second surface. The first surface is disposed on the side of the second surface away from the light-emitting device. The normal of the first connecting surface gradually changes and the first connecting surface is recessed towards the center of the second lens structure. At the first connecting surface, the refractive index of the second lens structure is greater than the refractive index of the lens blocking structure.

5. The display panel according to claim 4, characterized in that, The touch function layer has a first touch metal layer and a second touch metal layer stacked sequentially along a direction away from the display substrate; The distance between the first surface and the display substrate is greater than the distance between the second touch metal layer and the display substrate.

6. The display panel according to claim 3, characterized in that, The lens layer also has a plurality of second lens structures, each of which corresponds one-to-one with a plurality of light-emitting devices; the plurality of second lens structures are spaced apart by the lens blocking structure; the orthographic projection of the second lens structure on the touch function layer completely covers the orthographic projection of the light-emitting device on the touch function layer, and the light emitted by the light-emitting device exits through the second lens structure; The second lens structure has a first curved surface and a second curved surface disposed opposite to each other, and a second connecting surface connecting the first curved surface and the second curved surface. The first curved surface is disposed on the side of the second curved surface away from the light-emitting device. The groove formed by the first curved surface opens to the side away from the display substrate, and the groove formed by the second curved surface opens to the side away from the display substrate. The thickness of the edge of the second lens structure is less than the thickness of the center of the second lens structure. At the first curved surface and the second curved surface, the refractive index of the second lens structure is greater than the refractive index of the lens blocking structure.

7. The display panel according to claim 6, characterized in that, The touch function layer has a first touch metal layer and a second touch metal layer stacked sequentially along a direction away from the display substrate; The distance between the edge of the first curved surface and the display substrate is greater than the distance between the second touch metal layer and the display substrate; the distance between the edge of the second curved surface and the display substrate is greater than the distance between the second touch metal layer and the display substrate.

8. The display panel according to claim 4 or 6, characterized in that, The lens layer also has a third lens structure; The third lens structure is disposed on the side of the first lens structure and the second lens structure away from the display substrate, and the third lens structure covers the first lens structure and the second lens structure.

Images