Light-emitting display device

Abstract

A light emitting display device includes: a substrate; the light emitting diode is positioned on the substrate; a bank surrounding the light emitting diode; a thin film transistor between the substrate and the light emitting diode; an encapsulation layer on the light emitting diode; a color filter layer on the encapsulation layer and corresponding to the light emitting diode; a convex lens on the color filter layer; and a touch electrode layer between the encapsulation layer and the convex lens.

Description

Technical Field

[0001] This disclosure relates to a light-emitting display device, and more specifically, to a light-emitting display device capable of reducing ambient light reflection without brightness reduction and / or stain defects. Background Technology

[0002] Recently, there has been an increasing demand for flat panel display devices with small footprints. Among these devices, the technology of light-emitting diode (LED) displays is rapidly developing.

[0003] Light-emitting display devices can be classified into organic light-emitting display devices and inorganic light-emitting display devices.

[0004] For example, in a light-emitting display device, an organic light-emitting diode (OLED) includes a cathode as an electron injection electrode, an anode as a hole injection electrode, and an organic light-emitting layer disposed between the cathode and the anode. When electrons from the cathode and holes from the anode enter the organic light-emitting layer, the electrons and holes combine to generate excitons, and the excitons transition from an excited state to a ground state. As a result, light is emitted from the OLED.

[0005] Unlike liquid crystal display (LCD) devices, light-emitting display devices do not require polarizing plates. However, in light-emitting display devices without polarizing plates, display quality may be degraded due to reflection of ambient light (external light). Therefore, to minimize or reduce ambient light reflection, light-emitting display devices include polarizing plates on the display surface side.

[0006] In light-emitting display devices with polarizing plates, ambient light reflection can be reduced, but brightness may be reduced by the polarizing plates. Summary of the Invention

[0007] This disclosure relates to a light-emitting display device that substantially eliminates one or more problems associated with the limitations and drawbacks of related conventional technologies.

[0008] The purpose of this disclosure is to provide a light-emitting display device that can prevent increased ambient light reflection without reducing brightness, blemishes, and / or moiré stripe defects.

[0009] Additional features and advantages of this disclosure are set forth in the description which follows, and will be apparent from the description, or may be apparent by practice of this disclosure. The objects and other advantages of this disclosure are realized and obtained through the features described herein and in the accompanying drawings.

[0010] In order to achieve these and other advantages according to the purposes of embodiments of the present disclosure, as described herein, one aspect of the present disclosure is a light-emitting display device comprising: a substrate; a light-emitting diode on the substrate; a dam surrounding the light-emitting diode; a thin-film transistor between the substrate and the light-emitting diode; an encapsulation layer on the light-emitting diode; a color filter layer located on the encapsulation layer and corresponding to the light-emitting diode; a convex lens on the color filter layer; and a touch electrode layer between the encapsulation layer and the convex lens.

[0011] Other systems, methods, features, and advantages will be apparent to those skilled in the art upon examination of the following figures and detailed description. All such additional systems, methods, features, and advantages are intended to be included within this specification, within the scope of this disclosure, and protected by the appended claims. Nothing in this section should be construed as limiting those claims. Further aspects and advantages are discussed below in conjunction with embodiments of this disclosure.

[0012] It should be understood that the foregoing general description and the following specific description are exemplary and illustrative, and are intended to further explain the claimed disclosure. Attached Figure Description

[0013] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0014] Figure 1 This is a schematic circuit diagram of the light-emitting display device disclosed herein.

[0015] Figure 2 This is a schematic cross-sectional view illustrating a light-emitting display device according to a first embodiment of the present disclosure.

[0016] Figure 3 This is a schematic cross-sectional view illustrating a light-emitting display device according to a second embodiment of the present disclosure.

[0017] Figure 4 This is a schematic cross-sectional view illustrating a light-emitting display device according to a third embodiment of the present disclosure.

[0018] Figure 5 This is a schematic plan view showing the convex lens and concave lens of a light-emitting display device according to a third embodiment of the present disclosure.

[0019] Figure 6 This is a schematic cross-sectional view illustrating a light-emitting display device according to a fourth embodiment of the present disclosure.

[0020] Figures 7A to 7CThis is a schematic plan view showing the convex lens and the concave lens in the first pixel region to the third pixel region of the light-emitting display device according to the fourth embodiment of the present disclosure.

[0021] Figure 8 This is a schematic cross-sectional view illustrating a light-emitting display device according to a fifth embodiment of the present disclosure.

[0022] Figures 9A to 9C This is a schematic plan view showing the convex lens and the concave lens in the first pixel region to the third pixel region of the light-emitting display device according to the fifth embodiment of the present disclosure.

[0023] Figure 10 This is a schematic cross-sectional view illustrating a light-emitting display device according to the sixth embodiment of the present disclosure.

[0024] Figure 11 This is a schematic cross-sectional view illustrating a light-emitting display device according to the seventh embodiment of the present disclosure.

[0025] Figure 12 This is a schematic cross-sectional view illustrating a light-emitting display device according to the eighth embodiment of the present disclosure.

[0026] Throughout the accompanying drawings and detailed description, unless otherwise stated, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustration, and convenience, the relative sizes and depictions of these elements may be exaggerated. Detailed Implementation

[0027] Reference will now be made in detail to various aspects of this disclosure, examples of which are illustrated in the accompanying drawings. In the following description, specific descriptions of well-known functions or configurations associated with this document will be omitted where such description would unnecessarily obscure the essential points of the inventive concept. The described process steps and / or order of operations are exemplary; however, the order of steps and / or operations is not limited to those set forth herein, except that they must occur in a specific order, and can be varied as is known in the art. The same reference numerals consistently refer to the same elements. The names of the elements used in the following description are chosen solely for ease of writing and may therefore differ from those used in actual products.

[0028] The advantages and features of this disclosure, as well as methods of implementing them, will become apparent from the aspects described in detail below with reference to the accompanying drawings. However, this disclosure is not limited to the aspects disclosed below, but can be implemented in various different forms, and these aspects are merely to ensure the completeness of this disclosure. This disclosure is provided to fully inform those skilled in the art of this disclosure of its scope.

[0029] The shapes, sizes, scales, angles, quantities, etc., disclosed in the accompanying drawings used to illustrate various aspects of this disclosure are illustrative, and this disclosure is not limited to the illustrated matters. Throughout the specification, the same reference numerals refer to the same elements. Furthermore, in describing this disclosure, if it is determined that a detailed description of relevant known art unnecessarily obscures the subject matter of this disclosure, its detailed description may be omitted. When terms such as "comprising," "having," and "constituting" are used in this specification, other components may be added unless "only" is used. When components are referred to in the singular, unless otherwise specified, the inclusion of a plural is included.

[0030] Any implementation described in this article as an "example" is not necessarily to be interpreted as preferred or advantageous over other implementations.

[0031] The phrase "at least one of A, b, and c" throughout this specification may encompass "A alone," "b alone," "c alone," "a and b," "a and c," "b and c," or "all of a, b, and c." The advantages and features of this disclosure, as well as methods for achieving these advantages and features, will become apparent from the embodiments described in detail below with reference to the accompanying drawings.

[0032] When interpreting components, even without an explicit description of such an error or tolerance range, the component is interpreted as including an error or tolerance range.

[0033] When describing positional relationships, for example, when the positional relationship between two components is described as such as "above", "over", "below", and "under", one or more other components may be positioned between the two components unless more restrictive terms such as "exactly" or "directly" are used.

[0034] When describing temporal relationships, such as when time sequence is described as "after", "following", "next" and "before", discontinuous situations may be included unless more restrictive terms such as "exactly", "immediately" or "directly" are used.

[0035] The area, length, or thickness of each component described in this specification are shown for ease of interpretation, and this disclosure is not necessarily limited to the area and thickness of the components shown.

[0036] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0037] Furthermore, unless otherwise stated, when a component or layer is “connected,” “joined,” or “bonded” to another component or layer, it means that the component or layer can be directly connected or bonded to the other component or layer, or indirectly connected or bonded to the other component or layer, with one or more intermediate components or layers “set” or “inserted” between the components or layers. This should be understood to mean that components can be arranged to be in direct contact with each other, or arranged to be in a way that is not in direct contact with each other.

[0038] The expressions "first element," "second element," and " / or" "third element" should be understood as one of the first element, the second element, and the third element, or any or all combinations of the first element, the second element, and the third element. As an example, A, B, and / or C can refer to only A; only B; only C; any or some combinations of A, B, and C; or all of A, B, and C.

[0039] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the example embodiments pertain. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having a meaning consistent with, for example, their meaning in the context of the relevant field, and should not be interpreted in an idealized or overly formal sense unless explicitly defined herein. For example, as one of ordinary skill in the art will understand, the terms “component” or “unit” can be applied to, for example, a single circuit or structure, an integrated circuit, a computational block of a circuit device, or any structure configured to perform the described functions.

[0040] In contrast, these embodiments may be provided to make this disclosure sufficiently thorough and complete to assist those skilled in the art in fully understanding its scope. Furthermore, this disclosure is limited only by the scope of the claims.

[0041] As will be fully understood by those skilled in the art, the features of the various embodiments of this disclosure may be partially or entirely linked or combined with each other, and may be interoperable and technically driven differently from each other. The embodiments of this disclosure may be performed independently of each other, or may be performed together in an interdependent relationship.

[0042] The transistors constituting the pixel circuits of this disclosure may include at least one of oxide thin-film transistors (oxide TFTs), amorphous silicon TFTs (a-Si TFTs), and low-temperature polycrystalline silicon (LTPS) TFTs, without needing to be specifically described.

[0043] The following embodiments are described with reference to organic light-emitting display devices. However, the embodiments of this disclosure are not limited to organic light-emitting display devices. For example, the display device according to the embodiments of this disclosure may be an organic light-emitting display device using organic light-emitting materials or an inorganic light-emitting display device using inorganic light-emitting materials such as quantum dots.

[0044] Reference will now be made to some examples and preferred embodiments shown in the accompanying drawings.

[0045] Figure 1 This is a schematic circuit diagram of the light-emitting display device disclosed herein.

[0046] like Figure 1 As shown, the light-emitting display device includes a gate line GL, a data line DL, a power line PL, a switching thin-film transistor (TFT) Ts, a driving TFT Td, a storage capacitor Cst, and a light-emitting diode (LED) D. The gate line GL and the data line DL intersect each other to define a pixel region P. The switching TFT Ts, the driving TFT Td, the storage capacitor Cst, and the LED D are disposed within the pixel region P. The pixel region may include a red pixel region, a green pixel region, and a blue pixel region.

[0047] The switch TFT Ts is connected to the gate line GL and the data line DL, and the drive TFT Td and the storage capacitor Cst are connected to the switch TFT Ts and the power line PL. The light-emitting diode D is connected to the drive TFT Td.

[0048] In a light-emitting display device, when a gating signal applied through the gating line GL turns on the switch TFT Ts, a data signal from the data line DL is applied to the gate electrode of the driving TFT Td and the electrode of the storage capacitor Cst.

[0049] When the driving TFT Td is turned on by the data signal, current is supplied from the power line PL to the light-emitting diode D. As a result, the light-emitting diode D emits light. In this case, when the driving TFT Td is turned on, the level of the current applied from the power line PL to the light-emitting diode D is determined to allow the light-emitting diode D to produce grayscale levels.

[0050] The storage capacitor Cst is used to maintain the voltage of the gate electrode of the driving TFT Td when the switch TFT Ts is off. Therefore, even when the switch TFT Ts is off, the level of the current applied from the power line PL to the light-emitting diode D is maintained until the next frame.

[0051] Thus, the light-emitting display device displays the desired image.

[0052] Figure 2 This is a schematic cross-sectional view illustrating a light-emitting display device according to a first embodiment of the present disclosure.

[0053] like Figure 2 As shown, the light-emitting display device 100 includes a substrate 101, a light-emitting diode D above the substrate 101, a color filter layer 172 above the light-emitting diode D, and a convex lens 182 above the color filter layer 172.

[0054] A pixel region P, comprising red, green, and blue pixel regions, is defined on substrate 101. Additionally, pixel region P may also include a white pixel region.

[0055] The substrate 101 can be a glass substrate or a flexible substrate. For example, the flexible substrate can be one of a polyimide (PI) substrate, a polyethersulfone (PES) substrate, a polyethylene naphthalate (PEN) substrate, a polyethylene terephthalate (PET) substrate, and a polycarbonate (PC) substrate.

[0056] A thin-film transistor (TFT) Tr is disposed on a substrate 101. Figure 2 In this configuration, the TFT is directly disposed on the substrate 101. Alternatively, a buffer layer may be disposed on the substrate 101, and the TFT may be disposed on the buffer layer. The buffer layer may be formed of an inorganic insulating material (e.g., silicon oxide or silicon nitride).

[0057] The TFT Tr includes a semiconductor layer 110, a gate electrode 114, a source electrode 130, and a drain electrode 132. The TFT Tr can be a driving TFT.

[0058] A semiconductor layer 110 is disposed on the substrate 101. The semiconductor layer 110 may comprise an oxide semiconductor material. When the semiconductor layer 110 comprises an oxide semiconductor material, a light-shielding pattern (not shown) may be formed beneath the semiconductor layer 110. Light reaching the semiconductor layer 110 may be shielded or blocked by the light-shielding pattern to prevent thermal degradation of the semiconductor layer 110. Alternatively, the semiconductor layer 110 may comprise polysilicon. In this case, impurities may be doped into both sides of the semiconductor layer 110.

[0059] A gate insulating layer 112 is formed on the semiconductor layer 110 and over the entire surface of the substrate 101. The gate insulating layer 112 may be formed of an inorganic insulating material such as silicon oxide (SiOx) or silicon nitride (SiNx).

[0060] A gate electrode 114, formed of a conductive material (e.g., a metal), is formed on the gate insulating layer 112. The gate electrode 114 corresponds to the center of the semiconductor layer 110. For example, the gate electrode 114 can be formed of one of copper (Cu), molybdenum (Mo), titanium (Ti), aluminum (Al), gold (Au), and silver (Ag). The gate electrode 114 can have a single-layer structure or a multi-layer structure.

[0061] exist Figure 2 In this embodiment, a gate insulating layer 112 is formed over the entire surface of the substrate 101. Alternatively, the gate insulating layer 112 may be patterned to have the same shape as the gate electrode 114.

[0062] An interlayer insulating layer 120, formed of an insulating material, is formed on the gate electrode 114 and above the entire surface of the substrate 101. The interlayer insulating layer 120 may be formed of an inorganic insulating material (e.g., silicon oxide or silicon nitride) or an organic insulating material (e.g., benzocyclobutene or photoacrylic acid).

[0063] The interlayer insulating layer 120 includes a first contact hole 122 and a second contact hole 124 exposing both sides of the semiconductor layer 110. The first contact hole 122 and the second contact hole 124 are located on both sides of the gate electrode 114 and spaced apart from the gate electrode 114.

[0064] exist Figure 2 In this configuration, the first contact hole 122 and the second contact hole 124 are formed through the interlayer insulating layer 120 and the gate insulating layer 112. Alternatively, when the gate insulating layer 112 is patterned to have the same shape as each of the gate electrodes 114, the first contact hole 122 and the second contact hole 124 are formed only through the interlayer insulating layer 120.

[0065] A source electrode 130 and a drain electrode 132, formed of a conductive material (e.g., metal), are formed on an interlayer insulating layer 120. The source electrode 130 and the drain electrode 132 are spaced apart from each other relative to the gate electrode 114 and contact both sides of the semiconductor layer 110 through a first contact hole 122 and a second contact hole 124, respectively.

[0066] For example, each of the source electrode 130 and the drain electrode 132 may be formed of one of Cu, Mo, Ti, Al, Au, and Ag. Each of the source electrode 130 and the drain electrode 132 may have a single-layer structure or a multi-layer structure.

[0067] exist Figure 2 In this configuration, the gate electrode 114, source electrode 130, and drain electrode 132 are located above the semiconductor layer 110. That is, the TFT Tr has a coplanar structure. Alternatively, in the TFT Tr, the gate electrode may be located below the semiconductor layer, and the source and drain electrodes may be located above the semiconductor layer, such that each of the TFT Tr can have an inverted staggered structure. In this case, the semiconductor layer may comprise amorphous silicon.

[0068] Although not shown, the gate lines and data lines intersect each other to define the pixel area, and the switching TFT is formed to connect to the gate lines and data lines. The switching TFT is connected to the TFT Tr, which serves as a driving element. Additionally, power lines and storage capacitors for maintaining the voltage of the gate electrode of the TFT Tr in a frame can be further formed; the power lines can be formed parallel to and spaced apart from one of the gate lines and data lines.

[0069] A planarization layer 134 is formed on the source electrode 130 and the drain electrode 132, as well as over the entire surface of the substrate 101. That is, the planarization layer 134 is formed to cover the TFT Tr.

[0070] The planarization layer 134 has a flat top surface and includes a drain contact hole 136 that exposes the drain electrode 132 of the TFT Tr. The planarization layer 134 may be formed of an inorganic insulating material (e.g., silicon oxide or silicon nitride) or an organic insulating material (e.g., benzocyclobutene or photoacrylic acid).

[0071] The light-emitting diode D is disposed on the planarization layer 134 and includes a first electrode 140 connected to the drain electrode 132 of the TFT Tr, a light-emitting layer 142 on the first electrode 140, and a second electrode 144 on the light-emitting layer 142. The light-emitting diode D is disposed at each of the red pixel region, the green pixel region, and the blue pixel region, and emits red light, green light, and blue light in the red pixel region, the green pixel region, and the blue pixel region, respectively.

[0072] A first electrode 140 is individually formed in each pixel region P. The first electrode 140 may be an anode and may be formed of a conductive material having a relatively high work function. For example, the first electrode 140 may be formed of a conductive material having a relatively high work function (e.g., transparent conductive oxide (TCO)). For example, the first electrode 140 may include at least one of indium tin oxide (ITO), indium zinc oxide (IZO), indium tin zinc oxide (ITZO), tin oxide (SnO), zinc oxide (ZnO), indium copper oxide (ICO), and aluminum zinc oxide (Al:ZnO, AZO).

[0073] The first electrode 140 may have a single-layer structure including a layer of transparent conductive oxide material. Alternatively, the first electrode 140 may also include a reflective layer to have a double-layer or triple-layer structure. That is, the first electrode 140 may be a reflective electrode.

[0074] For example, the reflective layer may include silver (Ag) or an aluminum-palladium-copper alloy (APC). For example, the first electrode 140 may have a two-layer structure of Ag / ITO or APC / ITO or a three-layer structure of ITO / Ag / ITO or ITO / APC / ITO.

[0075] A dam 146 is formed on the planarization layer 134 to cover the edge of the first electrode 140. That is, the dam 146 is located at the boundary of the pixel region and exposes the center of the first electrode 140 in the pixel region P. The dam may surround the light-emitting diode D.

[0076] The dam 146 can be a transparent dam or a light-absorbing dam (e.g., a light-shielding dam, a black dam, or an opaque dam). For example, a light-absorbing dam (e.g., a light-shielding dam, a black dam, or an opaque dam) may include light-absorbing particles (or black particles). The light-absorbing dam (e.g., a light-shielding dam, a black dam, or an opaque dam) may also include an organic insulating material. The black particles may be one of carbon black, carbon nanotubes (CNTs), and graphene, and the organic insulating material may be one of photoacrylic acid, benzocyclobutene, and polyimide.

[0077] Additionally, a spacer 148 is formed on the embankment 146. The embankment 146 and the spacer 148 can be formed of the same material.

[0078] A light-emitting layer 142, including a light-emitting material layer (EML), is formed on the first electrode 160. The light-emitting layer 142 may have a monolayer structure including the EML.

[0079] EML can include organic light-emitting materials or inorganic light-emitting materials. That is, the light-emitting display device 100 of this disclosure can be an organic light-emitting display device or an inorganic light-emitting display device.

[0080] In an organic light-emitting display device, the EML (Emitting Microstructure) may include a substrate and dopants (i.e., light emitters). In the red pixel region, the EML may include a red substrate and red dopants. In the green pixel region, the EML may include a green substrate and green dopants. In the blue pixel region, the EML may include a blue substrate and blue dopants.

[0081] The light-emitting layer 142 may also include at least one of a hole injection layer (HIL), a hole transport layer (HTL), an electron blocking layer (EBL), a hole blocking layer (HBL), an electron transport layer (ETL), and an electron injection layer (EIL).

[0082] In one aspect of this disclosure, the light-emitting diode D can emit white light at each of the red pixel region, the green pixel region, and the blue pixel region. For example, the light-emitting layer 142 of the light-emitting diode D may include a first light-emitting component comprising a first EML, a second light-emitting component comprising a second EML, and a charge-generating layer (CGL) between the first and second light-emitting components to have a double-layered structure. In this case, one of the first EML and the second EML may be a blue EML, and the other of the first EML and the second EML may be a yellow-green EML or include a red EML and a green EML.

[0083] Additionally, the light-emitting layer 142 of the light-emitting diode D may also include a third light-emitting component, which includes a third EML and a CGL located between the second and third light-emitting components to have a three-layer stacked structure. In this case, the third EML may be a blue EML.

[0084] A second electrode 144 is formed on a substrate 101 on which an organic light-emitting layer 142 is formed. The second electrode 144 covers the entire surface of the display area and can be formed of a conductive material with a relatively low work function to serve as a cathode. For example, the second electrode 144 can be formed of a material with high reflectivity, such as aluminum (Al), magnesium (Mg), calcium (Ca), silver (Ag), alloys thereof, or combinations thereof. The second electrode 144 can have a thin profile (small thickness) to provide light transmittance (or semi-transmittance).

[0085] An encapsulation layer (or encapsulation film) 150 is formed on the second electrode 144 to prevent moisture from penetrating into the light-emitting diode D. The encapsulation layer 150 includes, but is not limited to, a first inorganic insulating layer 152, an organic insulating layer 154, and a second inorganic insulating layer 156 stacked sequentially. The encapsulation layer 150 may be omitted.

[0086] Each of the first inorganic insulating layer 152 and the second inorganic insulating layer 156 may be formed of an inorganic insulating material (e.g., silicon oxide or silicon nitride). The organic insulating layer 154 may be formed of an organic insulating material (e.g., epoxy resin or photopolymer acrylic (or photosensitive acrylic polymer)).

[0087] An organic insulating layer 154 is disposed between a first inorganic insulating layer 152 and a second inorganic insulating layer 156. The organic insulating layer 154 can flatten the step difference to provide a flat top surface.

[0088] A touch electrode layer, including a first touch electrode 166 and a second touch electrode 168, is disposed on the encapsulation layer 150. For example, a connection electrode 162 may be formed on the encapsulation layer 150, and a first insulating material layer 164a may be formed on the connection electrode 162, including a first contact hole and a second contact hole respectively exposing both ends of the connection electrode 162. The first touch electrode 166 and the second touch electrode 168 may be formed on the first insulating material layer 164a. Adjacent first touch electrodes 166 may contact the connection electrode 162 through the first contact hole and the second contact hole to be electrically connected to each other. The first insulating material layer 164a may be formed of an inorganic insulating material (e.g., silicon oxide or silicon nitride).

[0089] A buffer layer may also be formed between the second inorganic insulating layer 156 and the first insulating material layer 164a of the encapsulation layer 150. The buffer layer may be formed of an inorganic insulating material (e.g., silicon oxide or silicon nitride).

[0090] The second insulating material layer 164b can be formed on the first touch electrode 166 and the second touch electrode 168. The second insulating material layer 164b can be formed of an inorganic insulating material (e.g., silicon oxide or silicon nitride) or an organic insulating material (e.g., benzocyclobutene or photoacrylic acid).

[0091] The black matrix 170 and the color filter layer 172 can be formed on the second insulating material layer 164b.

[0092] Alternatively, the connecting electrode 162, the first insulating material layer 164a, the first touch electrode 166, the second touch electrode 168, and the second insulating material layer 164b may be omitted so that the black matrix 170 and the color filter layer 172 can be formed on the encapsulation layer 150.

[0093] The black matrix 170 is formed at the edge of the pixel region P and includes an opening corresponding to the light-emitting diode D. For example, the black matrix 170 may comprise black resin or carbon black.

[0094] The color filter layer 172 corresponds to the opening of the black matrix 170.

[0095] When the pixel region P includes a red pixel region, a green pixel region, and a blue pixel region, the color filter layer 172 may include a red color filter pattern corresponding to the red pixel region, a green color filter pattern corresponding to the green pixel region, and a blue color filter pattern corresponding to the blue pixel region.

[0096] Red filter patterns may include at least one of red dye and red pigment, green filter patterns may include at least one of green dye and green pigment, and blue filter patterns may include at least one of blue dye and blue pigment.

[0097] Although not shown, a protective layer may be formed on the second insulating material layer 164b, and a black matrix 170 and a color filter layer 172 may be formed on the protective layer. The protective layer may be formed of an inorganic insulating material (e.g., silicon oxide or silicon nitride).

[0098] A convex lens 182 is disposed on the color filter layer 172. Multiple convex lenses 182 correspond to a pixel region P. For example, a first insulating layer 180 may be formed on the color filter layer 172, and the convex lens 182 may be disposed on the upper surface of the first insulating layer 180. The first insulating layer 180 having the convex lens 182 may be referred to as a lens layer. The first insulating layer 180 having the convex lens 182 may be formed of an organic insulating material (e.g., epoxy resin or photopolymer acrylic).

[0099] The convex lens 182 can be disposed over the entire display area. For example, the planar area of ​​the convex lens 182 can be approximately the same as the planar area of ​​the display area.

[0100] In embodiments of this disclosure, the convex lens may be disposed only on the color filter layer corresponding to the pixel region. For example, the planar area of ​​the convex lens may be substantially the same as the planar area of ​​the color filter layer. For example, the first insulating layer has a non-uniform top surface with a convex lens corresponding to the color filter layer and a uniform (e.g., flat) top surface without a convex lens corresponding to the black matrix. In other words, the first insulating layer may have a non-uniform top surface corresponding to the color filter layer and a uniform top surface outside the black matrix. For example, the first insulating layer may have a non-uniform top surface with a convex lens corresponding to the color filter layer and a uniform top surface in the region between adjacent color filter layers.

[0101] In embodiments of this disclosure, the ends of the color filter layer and the convex lens can be disposed on the ends of the black matrix.

[0102] The convex lens 182 has a uniform shape and size throughout the display area. For example, the convex lens 182 may have a honeycomb shape in a planar view, and each of the plurality of convex lenses 182 may have the same vertical length (i.e., depth) and horizontal length (i.e., width).

[0103] A second insulating layer 174 is formed on the convex lens 182. The second insulating layer 174 protects the convex lens 182 and provides a flat top surface. The second insulating layer 174 may be formed of an organic insulating material (e.g., epoxy resin or photopolymer acrylic).

[0104] When the convex lens is only disposed on the color filter layer, the height of the convex lens from the substrate can be greater than the height of the uniform top surface of the first insulating layer from the substrate. As a result, the second insulating layer can have a first thickness corresponding to the convex lens and a second thickness greater than the first thickness corresponding to the uniform top surface.

[0105] In the light-emitting display device 100 according to the first embodiment of the present disclosure, light from the light-emitting diode D passes through the color filter layer 172, the convex lens 182, and the second insulating layer 174 so that an image can be displayed on the surface of the second insulating layer 174.

[0106] The light-emitting display device 100 may be a foldable display device. The light-emitting display device 100 can be folded along a folding axis in the display area. For example, the substrate 101 may be folded such that a convex lens 182 in a first region of the display area faces a convex lens 182 in a second region of the display area. Alternatively, the substrate 101 may be folded such that a convex lens 182 in the first region of the display area is disposed above a convex lens 182 in the second region of the display area, with the substrate 101 therebetween.

[0107] The light-emitting display device 100 includes a color filter layer 172 on or above the encapsulation layer 150 without a polarizer, thereby reducing ambient light reflection. That is, in the light-emitting display device 100, the brightness reduction caused by the polarizer can be minimized or reduced, and the display quality degradation caused by ambient light reflection can be prevented.

[0108] Furthermore, without the convex lens 182, ambient light diffraction brightness non-uniformity may occur due to the step difference generated by the TFT Tr. Ambient light diffraction may be enhanced by the color filter layer 172, resulting in rainbow brightness non-uniformity through interference between adjacent pixel regions P. However, the light-emitting display device 100 of this disclosure includes the convex lens 182 to minimize, prevent, or reduce ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity. That is, light can be dispersed or scattered by the convex lens 182 to minimize, prevent, or reduce ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity.

[0109] Therefore, in the light-emitting display device 100 according to the first embodiment of the present disclosure, ambient light reflection can be prevented without brightness reduction and rainbow brightness unevenness, and high-quality images can be provided.

[0110] However, when a convex lens 182 of the same shape and size is formed on the color filter layer 172, moiré pattern problems may occur, which may degrade the display quality.

[0111] Figure 3This is a schematic cross-sectional view illustrating a light-emitting display device according to a second embodiment of the present disclosure.

[0112] like Figure 2 As shown, the light-emitting display device 200 includes a substrate 201, a light-emitting diode D above the substrate 201, a color filter layer 272 above the light-emitting diode D, and a plurality of convex lenses 282 on the color filter layer 272 that differ in size and / or shape.

[0113] A pixel region P, comprising red, green, and blue pixel regions, is defined on substrate 201. Additionally, pixel region P may also include a white pixel region.

[0114] A TFTTr including a semiconductor layer 210, a gate electrode 214, a source electrode 230 and a drain electrode 232 is formed on a substrate 201.

[0115] Additionally, a gate insulating layer 212 is disposed between the semiconductor layer 210 and the gate electrode 214, and the gate electrode 214 is insulated from each of the source electrode 230 and the drain electrode 232 by an interlayer insulating layer 220.

[0116] A planarization layer 234 is provided on the TFT Tr, including a drain electrode 236 that exposes a drain electrode 232, and a light-emitting diode D including a first electrode 240, a light-emitting layer 242, and a second electrode 244 is provided on the planarization layer 234.

[0117] The light-emitting diode D can emit red light, green light, and blue light respectively in the red pixel area, the green pixel area, and the blue pixel area. Alternatively, the light-emitting diode D can emit white light in the red pixel area, the green pixel area, and the blue pixel area.

[0118] A dam 246 corresponding to the boundary of pixel region P is disposed on planarization layer 234, and spacers may be disposed on dam 246.

[0119] An encapsulation layer 250 is formed on the second electrode 244 to prevent moisture from penetrating into the light-emitting diode D. The encapsulation layer 250 includes a first inorganic insulating layer 252, an organic insulating layer 254, and a second inorganic insulating layer 256 stacked sequentially.

[0120] A connection electrode 262 may be formed on the encapsulation layer 250, and a first insulating material layer 264a may be formed on the connection electrode 262. A first touch electrode 266 and a second touch electrode 268 may be formed on the first insulating material layer 264a, and a second insulating material layer 264b may be formed on the first touch electrode 266 and the second touch electrode 268.

[0121] A black matrix 270 and a color filter layer 272 may be formed on a second insulating material layer 264b. The black matrix 270 surrounds the pixel region P and includes an opening corresponding to the pixel region P. The color filter layer 272 is formed at the opening of the black matrix 270 to correspond to the pixel region P.

[0122] A convex lens 282 is disposed on the color filter layer 272. Multiple convex lenses 282 correspond to a pixel region P. For example, a first insulating layer 280 may be formed on the color filter layer 272, and the convex lens 282 may be disposed on the upper surface of the first insulating layer 280. The first insulating layer 280 having the convex lens 282 may be referred to as a lens layer.

[0123] The convex lenses 282 differ in at least one of their size and shape, and include a first convex lens 282a and a second convex lens 282b. That is, the first convex lens 282a and the second convex lens 282b differ in at least one of their size and shape. In other words, a plurality of random convex lenses 282 are disposed on the color filter layer 272.

[0124] A second insulating layer 274 is formed on the convex lens 282. The second insulating layer 274 protects the convex lens 282 and provides a flat top surface.

[0125] In the light-emitting display device 200 according to the first embodiment of the present disclosure, light from the light-emitting diode D passes through the color filter layer 272, the convex lens 282, and the second insulating layer 274, so that an image can be displayed on the surface of the second insulating layer 274.

[0126] The light-emitting display device 200 includes a color filter layer 272 on or above the encapsulation layer 250 in the absence of a polarizing plate, thereby reducing ambient light reflection. That is, in the light-emitting display device 200, the brightness reduction caused by the polarizing plate can be minimized or reduced, and the display quality degradation caused by ambient light reflection can be prevented.

[0127] Furthermore, without the convex lens 282, ambient light diffraction brightness non-uniformity may occur due to the step difference generated by the TFT Tr. Ambient light diffraction may be enhanced by the color filter layer 272, potentially causing rainbow brightness non-uniformity through interference between adjacent pixel regions P. However, the light-emitting display device 200 of this disclosure includes the convex lens 282 to minimize, prevent, or reduce ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity. That is, light can be dispersed or scattered by the convex lens 282 to minimize, prevent, or reduce ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity.

[0128] Furthermore, since the convex lenses 282 have differences in size and / or shape, moiré fringes that may occur in the light-emitting display device 100 according to the first embodiment of the present disclosure can be prevented by convex lenses 182 having the same size and shape.

[0129] Therefore, in the light-emitting display device 200 according to the second embodiment of the present disclosure, rainbow brightness unevenness and moiré stripes and ambient light reflection can be prevented without brightness reduction, and high-quality images can be provided.

[0130] However, it is difficult to control the process of forming convex lenses 282 with different sizes and / or shapes, and problems of uneven brightness arise between convex lenses 282 with different shapes.

[0131] Figure 4 This is a schematic cross-sectional view illustrating a light-emitting display device according to a third embodiment of the present disclosure. Figure 5 This is a schematic plan view showing the convex lens and concave lens of a light-emitting display device according to a third embodiment of the present disclosure.

[0132] like Figure 4 and Figure 5 As shown, the light-emitting display device 300 includes a substrate 301, a light-emitting diode D above the substrate 301, a convex lens 382 above the light-emitting diode D, and a concave lens 392 between the light-emitting diode D and the convex lens 382.

[0133] A pixel region P, comprising red, green, and blue pixel regions, is defined on substrate 301. Additionally, pixel region P may also include a white pixel region.

[0134] A TFTTr including a semiconductor layer 310, a gate electrode 314, a source electrode 330 and a drain electrode 332 is formed on a substrate 301.

[0135] Additionally, a gate insulating layer 312 is disposed between the semiconductor layer 310 and the gate electrode 314, and the gate electrode 314 is insulated from each of the source electrode 330 and the drain electrode 332 by an interlayer insulating layer 320.

[0136] A planarization layer 334 is provided on the TFT Tr, including a drain electrode 336 that exposes a drain electrode 332, and a light-emitting diode D including a first electrode 340, a light-emitting layer 342, and a second electrode 344 is provided on the planarization layer 334.

[0137] The light-emitting diode D can emit red light, green light, and blue light respectively in the red pixel region, the green pixel region, and the blue pixel region. Alternatively, the light-emitting diode D can emit white light in the red, green, and blue pixel regions.

[0138] A dam 346 corresponding to the boundary of pixel region P is disposed on planarization layer 334.

[0139] An encapsulation layer 350 is formed on the second electrode 344 to prevent moisture from penetrating into the light-emitting diode D. The encapsulation layer 350 includes a first inorganic insulating layer 352, an organic insulating layer 354, and a second inorganic insulating layer 356 stacked sequentially.

[0140] A connection electrode 362 may be formed on the encapsulation layer 350, and a first insulating material layer 364a may be formed on the connection electrode 362. A first touch electrode 366 and a second touch electrode 368 may be formed on the first insulating material layer 364a, and a second insulating material layer 364b may be formed on the first touch electrode 366 and the second touch electrode 368.

[0141] A black matrix 370 and a color filter layer 372 may be formed on a second insulating material layer 364b. The black matrix 370 surrounds the pixel region P and includes an opening corresponding to the pixel region P. The color filter layer 372 is formed at the opening of the black matrix 370 to correspond to the pixel region P.

[0142] A concave lens 392 is disposed above the color filter layer 372. Multiple concave lenses 392 correspond to a pixel region P. For example, a first insulating layer 390 may be formed on the color filter layer 372, and the concave lens 392 may be disposed on the upper surface of the first insulating layer 390. The concave lens 392 covers at least a portion of the black matrix 370. That is, the concave lens 392 may overlap with at least a portion of the black matrix 370.

[0143] A convex lens 382 is disposed on a concave lens 392. Multiple convex lenses 382 correspond to a pixel region P. For example, a second insulating layer 380 may be formed on the concave lens 392, and the convex lens 382 may be disposed on the upper surface of the second insulating layer 380.

[0144] A third insulating layer 374 is formed on the convex lens 382. The third insulating layer 374 protects the convex lens 382 and provides a flat top surface.

[0145] The refractive index of each of the first insulating layer 390 and the third insulating layer 374 may be greater than the refractive index of the second insulating layer 380. The refractive indices of the first insulating layer 390 and the third insulating layer 374 may be the same or different.

[0146] In one aspect of this disclosure, the refractive index of the first insulating layer 390 may be greater than the refractive index of the third insulating layer 374. The difference between the refractive index of the first insulating layer 390 and the refractive index of the second insulating layer 380 may be 0.1 or less.

[0147] In one aspect of this disclosure, the refractive index of the third insulating layer 374 may be greater than the refractive index of the first insulating layer 390. The difference between the refractive index of the third insulating layer 374 and the refractive index of the second insulating layer 380 may be 0.1 or less.

[0148] In one aspect of this disclosure, the refractive index of the first insulating layer 390 may be equal to the refractive index of the third insulating layer 374. The difference between each of the refractive indices of the first insulating layer 390, the third insulating layer 374, and the second insulating layer 380 may be 0.1 or less.

[0149] In one aspect of this disclosure, each of the refractive index of the first insulating layer 390 and the refractive index of the third insulating layer 374 may have a range of 1.5 to 1.65, and the refractive index of the second insulating layer 380 may have a range of 1.45 to 1.55.

[0150] Each of the first to third insulating layers 390, 380 and 374 may be formed of an organic insulating material. For example, each of the first to third insulating layers 390, 380 and 374 may be formed of epoxy resin or acrylic acid.

[0151] Convex lenses 382 and concave lenses 392 are arranged alternately. For example, each of the convex lenses 382 and concave lenses 392 may have a honeycomb shape, but is not limited thereto.

[0152] One end 386 of at least one of the plurality of convex lenses 382 is located between the two ends 396 of the concave lens 392. In other words, the center 384 of at least one of the plurality of convex lenses 382 is located between the two centers 394 of two adjacent concave lenses 392. That is, at least one of the plurality of convex lenses 382 does not completely overlap or partially overlaps with the concave lens 392.

[0153] Each of the plurality of convex lenses 382 has a first vertical lens (i.e., a first depth) V1 and a first horizontal length (i.e., a first width) H1, and each of the plurality of concave lenses 392 has a second vertical lens (i.e., a second depth) V2 and a second horizontal length (i.e., a second width) H2.

[0154] The aspect ratio (i.e., V1 / H1) of the convex lens 382 and the aspect ratio (i.e., V2 / H2) of the concave lens 392 can be the same or different. The aspect ratio (i.e., V1 / H1) of the convex lens 382 can range from 5% to 20%, and the aspect ratio (i.e., V2 / H2) of the concave lens 392 can also range from 5% to 20%. Multiple convex lenses 382 can have the same aspect ratio in each pixel region P. For example, each of the multiple convex lenses 382 can have the same first depth V1 and the same first width H1. Multiple concave lenses 392 can also have the same aspect ratio in each pixel region P. For example, each of the multiple concave lenses 392 can have the same second depth V2 and the same second width H2.

[0155] The first width H1 of the convex lens 382 and the second width H2 of the concave lens 392 may be the same or different. In one aspect of this disclosure, the first width H1 of the convex lens 382 may be greater than the second width H2 of the concave lens 392.

[0156] In the light-emitting display device 300 according to the third embodiment of the present disclosure, light from the light-emitting diode D passes through the color filter layer 372, the first insulating layer 390, the concave lens 392, the second insulating layer 380, the convex lens 382, ​​and the third insulating layer 374 so that an image can be displayed on the surface of the third insulating layer 374.

[0157] The light-emitting display device 300 includes a color filter layer 372 on or above the encapsulation layer 350 in the absence of a polarizing plate, thereby reducing ambient light reflection. That is, in the light-emitting display device 300, the brightness reduction caused by the polarizing plate can be minimized or reduced, and the display quality degradation caused by ambient light reflection can be prevented.

[0158] Furthermore, without the convex lens 382 and concave lens 392, ambient light diffraction brightness non-uniformity may occur due to the step difference generated by the TFT Tr. Ambient light diffraction may be enhanced by the color filter layer 372, potentially causing rainbow brightness non-uniformity through interference between adjacent pixel regions P. However, the light-emitting display device 300 of this disclosure includes convex lenses 382 and concave lenses 392 alternately arranged on the color filter layer 372, so that ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity can be minimized, prevented, or reduced. That is, light can be dispersed or scattered by the convex lens 382 and concave lens 392, so that ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity can be minimized, prevented, or reduced.

[0159] Therefore, in the light-emitting display device 300 according to the third embodiment of the present disclosure, ambient light diffraction brightness non-uniformity, rainbow brightness non-uniformity, and moiré fringes can be prevented without reducing brightness, ambient light reflection can be prevented, and high-quality images can be provided.

[0160] Figure 6 This is a schematic cross-sectional view illustrating a light-emitting display device according to a fourth embodiment of the present disclosure, and Figures 7A to 7C This is a schematic plan view showing the convex lens and the concave lens in the first pixel region to the third pixel region of the light-emitting display device according to the fourth embodiment of the present disclosure.

[0161] like Figure 6 As shown, the light-emitting display device 400 includes ( Figure 4 The substrate 301 (which includes a first pixel region P1, a second pixel region P2, and a third pixel region P3), and the area above the substrate 301 ( Figure 4 The light-emitting diode D, the convex lens 422 above the light-emitting diode D, and the concave lens 432 between the light-emitting diode D and the convex lens 422.

[0162] The first pixel region P1 can be one of the red pixel region, the green pixel region, and the blue pixel region; the second pixel region P2 can be another of the red pixel region, the green pixel region, and the blue pixel region; and the third pixel region P3 can be another of the red pixel region, the green pixel region, and the blue pixel region. The substrate 301 may also include a fourth pixel region as a white pixel region.

[0163] In one aspect of this disclosure, the first pixel region P1 may be a red pixel region, the second pixel region P2 may be a green pixel region, and the third pixel region P3 may be a blue pixel region.

[0164] For ease of explanation, the configuration below the black matrix 410 and the color filter layer 418 has been omitted.

[0165] For example, refer to Figure 4 A TFT Tr, including a semiconductor layer 310, a gate electrode 314, a source electrode 330, and a drain electrode 332, is formed on a substrate 301, and a light-emitting diode D electrically connected to the TFT Tr is disposed above the TFT Tr.

[0166] In one aspect of this disclosure, the light-emitting diode D can emit red light at a first pixel region P1, green light at a second pixel region P2, and blue light at a third pixel region P3.

[0167] Alternatively, the light-emitting diode D may emit white light at the first pixel region to the third pixel region P1, P2 and P3.

[0168] The encapsulation layer 350 is disposed above the light-emitting diode D, and a touch electrode layer including a first touch electrode 366 and a second touch electrode 368 is disposed above the encapsulation layer 350.

[0169] Refer again Figure 6 The black matrix 410 and the color filter layer 418 can be formed on the encapsulation layer 350 or the touch electrode layer. The black matrix 410 can surround each of the first to third pixel regions P1, P2, and P3, and includes an opening corresponding to each of the first to third pixel regions P1, P2, and P3. The color filter layer 418 is formed at the opening of the black matrix 410 to correspond to each of the first to third pixel regions P1, P2, and P3.

[0170] The color filter layer includes a first color filter pattern 412 corresponding to a first pixel region P1, a second color filter pattern 414 corresponding to a second pixel region P2, and a third color filter pattern 416 corresponding to a third pixel region P3. The first color filter pattern 412 is one of a red color filter pattern, a green color filter pattern, and a blue color filter pattern; the second color filter pattern 414 is another of the red, green, and blue color filter patterns; and the third color filter pattern 416 is the remaining one of the red, green, and blue color filter patterns. In one aspect of this disclosure, the first color filter pattern 412 may be a red color filter pattern, the second color filter pattern 414 may be a green color filter pattern, and the third color filter pattern 416 may be a blue color filter pattern. That is, the first color filter pattern 412, the second color filter pattern 414, and the third color filter pattern 416 may be different from each other.

[0171] A concave lens 432 is disposed on the color filter layer 418. Multiple concave lenses 432 are formed to correspond to the first pixel region to the third pixel regions P1, P2, and P3. For example, a first insulating layer 430 may be formed on the color filter layer 418, and the concave lens 432 may be disposed on the upper surface of the first insulating layer 430.

[0172] A convex lens 422 is disposed on a concave lens 432. Multiple convex lenses 422 are formed to correspond to the first to third pixel regions P1, P2, and P3. For example, a second insulating layer 420 may be formed on the concave lens 432, and the convex lens 422 may be disposed on the upper surface of the second insulating layer 420.

[0173] A third insulating layer 440 is formed on the convex lens 422. The third insulating layer 440 protects the convex lens 422 and provides a flat top surface.

[0174] The refractive index of each of the first insulating layer 430 and the third insulating layer 440 may be greater than the refractive index of the second insulating layer 420. The refractive indices of the first insulating layer 430 and the third insulating layer 440 may be the same or different.

[0175] In one aspect of this disclosure, the refractive index of the first insulating layer 430 may be greater than the refractive index of the third insulating layer 440. The difference between the refractive index of the first insulating layer 430 and the refractive index of the second insulating layer 420 may be 0.1 or less.

[0176] In one aspect of this disclosure, the refractive index of the third insulating layer 440 may be greater than the refractive index of the first insulating layer 430. The difference between the refractive index of the third insulating layer 440 and the refractive index of the second insulating layer 420 may be 0.1 or less.

[0177] In one aspect of this disclosure, the refractive index of the first insulating layer 430 may be equal to the refractive index of the third insulating layer 440. The difference between each of the refractive indices of the first insulating layer 430, the third insulating layer 440, and the second insulating layer 420 may be 0.1 or less.

[0178] In one aspect of this disclosure, each of the refractive index of the first insulating layer 430 and the refractive index of the third insulating layer 440 may have a range of 1.5 to 1.65, and the refractive index of the second insulating layer 420 may have a range of 1.45 to 1.55.

[0179] Each of the first to third insulating layers 430, 420 and 440 may be formed of an organic insulating material. For example, each of the first to third insulating layers 430, 420 and 440 may be formed of epoxy resin or acrylic acid.

[0180] Reference Figures 7A to 7C and Figure 6 The convex lens 422 and the concave lens 432 are arranged alternately. For example, each of the convex lens 422 and the concave lens 432 may have a honeycomb shape, but is not limited thereto.

[0181] One end of at least one of the convex lenses 422 is located between the two ends of the concave lens 432. In other words, the center of at least one of the convex lenses 422 is located between the two centers of two adjacent concave lenses 432. That is, at least one of the convex lenses 422 does not completely overlap with the concave lens 432 and partially overlaps it.

[0182] Each of the plurality of convex lenses 422 has a first vertical lens (i.e., a first depth) V1 and a first horizontal length (i.e., a first width) H1. The aspect ratio (i.e., V1 / H1) of the convex lens 422 can be in the range of 5% to 20%. The plurality of convex lenses 422 can have the same shape and size in the first pixel region to the third pixel regions P1, P2 and P3.

[0183] The plurality of concave lenses 432 include a first concave lens 434 corresponding to the first pixel region P2, a second concave lens 436 corresponding to the second pixel region P2, and a third concave lens 438 corresponding to the third pixel region P3.

[0184] The first concave lens 434 has a depth V2-1 and a width H2-1. The second concave lens 436 has a depth V2-2 and a width H2-2. The third concave lens 438 has a depth V2-3 and a width H2-3.

[0185] The first concave lens 434 in the first pixel region P1 has a first aspect ratio (i.e., V2-1 / H2-1). The second concave lens 436 in the second pixel region P2 has a second aspect ratio (i.e., V2-2 / H2-2). The third concave lens 438 in the third pixel region P3 has a third aspect ratio (i.e., V2-3 / H2-3).

[0186] The second aspect ratio (i.e., V2-2 / H2-2) of the second concave lens 436 is greater than each of the third aspect ratio (i.e., V2-3 / H2-3) of the third concave lens 438 and the first aspect ratio (i.e., V2-1 / H2-1) of the first concave lens 434.

[0187] In one aspect of this disclosure, the depth (V2-2) of the second concave lens 436 may be greater than the depth (V2-1) of the first concave lens 434 and the depth (V2-3) of the third concave lens 438.

[0188] In one aspect of this disclosure, the width (H2-2) of the second concave lens 436 may be smaller than the width (H2-1) of the first concave lens 434 and the width (H2-3) of the third concave lens 438.

[0189] In one aspect of this disclosure, the depth (V2-2) of the second concave lens 436 may be greater than the depth (V2-1) of the first concave lens 434 and the depth (V2-3) of the third concave lens 438, and the width (H2-2) of the second concave lens 436 may be less than the width (H2-1) of the first concave lens 434 and the width (H2-3) of the third concave lens 438.

[0190] The first pixel region P1, the second pixel region P2, and the third pixel region P3 can be the red pixel region, the green pixel region, and the blue pixel region, respectively.

[0191] Since the reflectivity in the green pixel region is greater than that in the red and blue pixel regions, the second aspect ratio (i.e., V2-2 / H2-2) of the second concave lens 436 is greater than each of the third aspect ratio (i.e., V2-3 / H2-3) of the third concave lens 438 and the first aspect ratio (i.e., V2-1 / H2-1) of the first concave lens 434, so that the reflectivity difference in the first pixel region to the third pixel regions P1, P2 and P3 can be compensated.

[0192] The first aspect ratio (i.e., V2-1 / H2-1) of the first concave lens 434 and the third aspect ratio (i.e., V2-3 / H2-3) of the third concave lens 438 may be the same or different. In one aspect of this disclosure, the first aspect ratio (i.e., V2-1 / H2-1) of the first concave lens 434 may be equal to or greater than the third aspect ratio (i.e., V2-3 / H2-3) of the third concave lens 438.

[0193] In the light-emitting display device 400 according to the fourth embodiment of the present disclosure, light from the light-emitting diode D passes through the color filter layer 418, the first insulating layer 430, the concave lens 432, the second insulating layer 420, the convex lens 422, and the third insulating layer 440, so that an image can be displayed on the surface of the third insulating layer 440.

[0194] The light-emitting display device 400 includes a color filter layer 418 on or above the encapsulation layer 350 in the absence of a polarizing plate, so as to reduce ambient light reflection. That is, in the light-emitting display device 400, the brightness reduction caused by the polarizing plate can be minimized or reduced, and the display quality degradation caused by ambient light reflection can be prevented.

[0195] Furthermore, without the convex lens 422 and concave lens 432, ambient light diffraction brightness non-uniformity may occur due to the step difference generated by the TFT Tr. Ambient light diffraction may be enhanced by the color filter layer 418, which may cause rainbow brightness non-uniformity through interference between adjacent pixel regions P. However, the light-emitting display device 400 of this disclosure includes convex lenses 422 and concave lenses 432 alternately arranged above the color filter layer 418, so that ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity can be minimized, prevented, or reduced. That is, light can be dispersed or scattered by the convex lens 422 and concave lens 432, so that ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity can be minimized, prevented, or reduced.

[0196] Furthermore, since the concave lens 432 in the second pixel region P2, which has a relatively high reflectivity, is relatively large, it can compensate for the reflectivity difference between pixel regions P.

[0197] Therefore, in the light-emitting display device 400 according to the third embodiment of the present disclosure, ambient light diffraction brightness non-uniformity, rainbow brightness non-uniformity, and moiré fringes can be prevented without reducing brightness, ambient light reflection can be prevented, and high-quality images can be provided.

[0198] Figure 8 This is a schematic cross-sectional view illustrating a light-emitting display device according to a fifth embodiment of the present disclosure, and Figures 9A to 9C These are schematic plan views showing a convex lens and a concave lens in the first pixel region to the third pixel region of a light-emitting display device according to the fifth embodiment of the present disclosure.

[0199] like Figure 8 As shown, the light-emitting display device 500 includes ( Figure 4 The substrate 301 (which includes a first pixel region P1, a second pixel region P2, and a third pixel region P3), and the area above the substrate 301 ( Figure 4 The light-emitting diode D, the convex lens 522 above the light-emitting diode D, and the concave lens 532 between the light-emitting diode D and the convex lens 522.

[0200] The first pixel region P1 can be one of the red pixel region, the green pixel region, and the blue pixel region; the second pixel region P2 can be another of the red pixel region, the green pixel region, and the blue pixel region; and the third pixel region P3 can be another of the red pixel region, the green pixel region, and the blue pixel region. The substrate 301 may also include a fourth pixel region as a white pixel region.

[0201] In one aspect of this disclosure, the first pixel region P1 may be a red pixel region, the second pixel region P2 may be a green pixel region, and the third pixel region P3 may be a blue pixel region.

[0202] For ease of explanation, the configuration below the black matrix 510 and the color filter layer 518 has been omitted.

[0203] For example, refer to Figure 4 A TFT Tr, including a semiconductor layer 310, a gate electrode 314, a source electrode 330, and a drain electrode 332, is formed on a substrate 301, and a light-emitting diode D electrically connected to the TFT Tr is disposed above the TFT Tr.

[0204] In one aspect of this disclosure, the light-emitting diode D can emit red light at a first pixel region P1, green light at a second pixel region P2, and blue light at a third pixel region P3.

[0205] Alternatively, the light-emitting diode D may emit white light at the first pixel region to the third pixel region P1, P2 and P3.

[0206] The encapsulation layer 350 is disposed above the light-emitting diode D, and a touch electrode layer including a first touch electrode 366 and a second touch electrode 368 is disposed on the encapsulation layer 350.

[0207] Refer again Figure 8 The black matrix 510 and the color filter layer 518 can be formed on the encapsulation layer 350 or the touch electrode layer. The black matrix 510 can surround each of the first to third pixel regions P1, P2, and P3, and includes an opening corresponding to each of the first to third pixel regions P1, P2, and P3. The color filter layer 518 is formed at the opening of the black matrix 510 to correspond to each of the first to third pixel regions P1, P2, and P3.

[0208] The color filter layer includes a first color filter pattern 512 corresponding to a first pixel region P1, a second color filter pattern 514 corresponding to a second pixel region P2, and a third color filter pattern 516 corresponding to a third pixel region P3. The first color filter pattern 512 is one of a red color filter pattern, a green color filter pattern, and a blue color filter pattern; the second color filter pattern 514 is another of the red, green, and blue color filter patterns; and the third color filter pattern 516 is the remaining one of the red, green, and blue color filter patterns. In one aspect of this disclosure, the first color filter pattern 512 may be a red color filter pattern, the second color filter pattern 514 may be a green color filter pattern, and the third color filter pattern 516 may be a blue color filter pattern. That is, the first color filter pattern 512, the second color filter pattern 514, and the third color filter pattern 516 may be different from each other.

[0209] A concave lens 532 is disposed above the color filter layer 518. Multiple concave lenses 532 are formed to correspond to the first pixel region to the third pixel regions P1, P2, and P3. For example, a first insulating layer 530 may be formed on the color filter layer 518, and the concave lens 532 may be disposed on the upper surface of the first insulating layer 530.

[0210] A convex lens 522 is disposed on a concave lens 532. Multiple convex lenses 522 are formed to correspond to the first pixel region to the third pixel regions P1, P2, and P3. For example, a second insulating layer 520 may be formed on the concave lens 532, and the convex lens 522 may be disposed on the upper surface of the second insulating layer 520.

[0211] A third insulating layer 540 is formed on the convex lens 522. The third insulating layer 540 protects the convex lens 522 and provides a flat top surface.

[0212] The refractive index of each of the first insulating layer 530 and the third insulating layer 540 may be greater than the refractive index of the second insulating layer 520. The refractive indices of the first insulating layer 530 and the third insulating layer 540 may be the same or different.

[0213] In one aspect of this disclosure, the refractive index of the first insulating layer 530 may be greater than the refractive index of the third insulating layer 540. The difference between the refractive index of the first insulating layer 530 and the refractive index of the second insulating layer 520 may be 0.1 or less.

[0214] In one aspect of this disclosure, the refractive index of the third insulating layer 540 may be greater than the refractive index of the first insulating layer 530. The difference between the refractive index of the third insulating layer 540 and the refractive index of the second insulating layer 520 may be 0.1 or less.

[0215] In one aspect of this disclosure, the refractive index of the first insulating layer 530 may be equal to the refractive index of the third insulating layer 540. The difference between each of the refractive indices of the first insulating layer 530, the third insulating layer 540, and the second insulating layer 520 may be 0.1 or less.

[0216] In one aspect of this disclosure, each of the refractive index of the first insulating layer 530 and the refractive index of the third insulating layer 540 may have a range of 1.5 to 1.65, and the refractive index of the second insulating layer 520 may have a range of 1.45 to 1.55.

[0217] Each of the first to third insulating layers 530, 520 and 540 may be formed of an organic insulating material. For example, each of the first to third insulating layers 530, 520 and 540 may be formed of epoxy resin or acrylic acid.

[0218] Reference Figures 9A to 9C and Figure 8 The convex lens 522 and the concave lens 532 are arranged alternately. For example, each of the convex lens 522 and the concave lens 532 may have a honeycomb shape, but is not limited thereto.

[0219] At least one end of the plurality of convex lenses 522 is located between the two ends of the concave lens 532. In other words, the center of at least one of the plurality of convex lenses 522 is located between the two centers of two adjacent concave lenses 532. That is, at least one of the plurality of convex lenses 522 does not completely overlap with the concave lens 532 and partially overlaps it.

[0220] Each of the plurality of concave lenses 532 has a second vertical length (i.e., second depth) V2 and a second horizontal length (i.e., second width) H2. The aspect ratio (i.e., V2 / H2) of the concave lens 532 can be in the range of 5% to 20%. The plurality of concave lenses 532 can have the same shape and size in the first pixel region to the third pixel regions P1, P2 and P3.

[0221] The plurality of convex lenses 522 include a first convex lens 524 corresponding to the first pixel region P2, a second convex lens 526 corresponding to the second pixel region P2, and a third convex lens 528 corresponding to the third pixel region P3.

[0222] Each of the first convex lenses 524 in the first pixel region P1 has a vertical length (i.e., depth) V1-1 and a horizontal length (i.e., width) H1-1. Each of the second convex lenses 526 in the second pixel region P2 has a vertical length V1-2 and a horizontal length H1-2. Each of the third convex lenses 528 in the third pixel region P3 has a vertical length V1-3 and a horizontal length H1-3.

[0223] Each of the first convex lenses 524 in the first pixel region P1 has a first aspect ratio (i.e., V1-1 / H1-1). Each of the second convex lenses 526 in the second pixel region P2 has a second aspect ratio (i.e., V1-2 / H1-2). Each of the third convex lenses 528 in the third pixel region P3 has a third aspect ratio (i.e., V1-3 / H1-3).

[0224] The second aspect ratio (i.e., V1-2 / H1-2) of the second convex lens 526 is greater than each of the third aspect ratio (i.e., V1-3 / H1-3) of the third convex lens 528 and the first aspect ratio (i.e., V1-1 / H1-1) of the first convex lens 524.

[0225] In one aspect of this disclosure, the depth (V1-2) of the second convex lens 526 may be greater than the depth (V1-1) of the first convex lens 524 and the depth (V1-3) ​​of the third convex lens 528.

[0226] In one aspect of this disclosure, the width (H1-2) of the second convex lens 526 may be smaller than the width (H1-1) of the first convex lens 524 and the width (H1-3) of the third convex lens 528.

[0227] In one aspect of this disclosure, the depth (V1-2) of the second convex lens 526 may be greater than the depth (V1-1) of the first convex lens 524 and the depth (V1-3) ​​of the third convex lens 528, and the width (H1-2) of the second convex lens 526 may be less than the width (H1-1) of the first convex lens 524 and the width (H1-3) of the third convex lens 528.

[0228] The first pixel region, the second pixel region, and the third pixel region, P1, P2, and P3, can be the red pixel region, the green pixel region, and the blue pixel region, respectively.

[0229] Since the reflectivity in the green pixel region is greater than that in the red and blue pixel regions, the second aspect ratio (i.e., V1-2 / H1-2) of the second convex lens 526 is greater than each of the third aspect ratio (i.e., V1-3 / H1-3) of the third convex lens 528 and the first aspect ratio (i.e., V1-1 / H1-1) of the first convex lens 524, so that the reflectivity difference in the first pixel region to the third pixel regions P1, P2 and P3 can be compensated.

[0230] The first aspect ratio (i.e., V1-1 / H1-1) of the first convex lens 524 and the third aspect ratio (i.e., V1-3 / H1-3) of the third convex lens 528 may be the same or different. In one aspect of this disclosure, the first aspect ratio (i.e., V1-1 / H1-1) of the first convex lens 524 may be equal to or greater than the third aspect ratio (i.e., V1-3 / H1-3) of the third convex lens 528.

[0231] In the light-emitting display device 500 according to the fifth embodiment of the present disclosure, light from the light-emitting diode D passes through the color filter layer 518, the first insulating layer 530, the concave lens 532, the second insulating layer 520, the convex lens 522, and the third insulating layer 540, so that an image can be displayed on the surface of the third insulating layer 540.

[0232] The light-emitting display device 500 includes a color filter layer 518 on or above the encapsulation layer 350 in the absence of a polarizing plate, so as to reduce ambient light reflection. That is, in the light-emitting display device 500, the brightness reduction caused by the polarizing plate can be minimized or reduced, and the display quality degradation caused by ambient light reflection can be prevented.

[0233] Furthermore, without the convex lens 522 and concave lens 532, ambient light diffraction brightness non-uniformity may occur due to the step difference generated by the TFT Tr. Ambient light diffraction may be enhanced by the color filter layer 518, potentially causing rainbow brightness non-uniformity through interference between adjacent pixel regions P. However, the light-emitting display device 500 of this disclosure includes convex lenses 522 and concave lenses 532 alternately arranged above the color filter layer 518, so that ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity can be minimized, prevented, or reduced. That is, light can be dispersed or scattered by the convex lens 522 and concave lens 532, so that ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity can be minimized, prevented, or reduced.

[0234] Furthermore, since the convex lens 522 in the second pixel region P2, which has a relatively high reflectivity, is relatively large, it can compensate for the reflectivity difference between pixel regions P.

[0235] Therefore, in the light-emitting display device 500 according to the fifth embodiment of the present disclosure, ambient light diffraction brightness non-uniformity, rainbow brightness non-uniformity, and moiré fringes can be prevented without reducing brightness, ambient light reflection can be prevented, and high-quality images can be provided.

[0236] Figure 10 This is a schematic cross-sectional view illustrating a light-emitting display device according to the sixth embodiment of the present disclosure.

[0237] like Figure 10 As shown, the light-emitting display device 600 includes a substrate 601, a light-emitting diode D above the substrate 601, a convex lens 682 above the light-emitting diode D, and a concave lens 674 between the light-emitting diode D and the convex lens 682.

[0238] A pixel region P, comprising red, green, and blue pixel regions, is defined on substrate 601. Additionally, pixel region P may also include a white pixel region.

[0239] A TFTTr including a semiconductor layer 610, a gate electrode 614, a source electrode 630, and a drain electrode 632 is formed on a substrate 601.

[0240] Additionally, a gate insulating layer 612 is disposed between the semiconductor layer 610 and the gate electrode 614, and the gate electrode 614 is insulated from each of the source electrode 630 and the drain electrode 632 by an interlayer insulating layer 620.

[0241] A planarization layer 634 is provided on the TFT Tr, including a drain electrode 636 that exposes a drain electrode 632. A light-emitting diode D including a first electrode 640, a light-emitting layer 642, and a second electrode 644 is provided on the planarization layer 634.

[0242] The light-emitting diode D can emit red light, green light, and blue light respectively in the red pixel area, the green pixel area, and the blue pixel area. Alternatively, the light-emitting diode D can emit white light in the red pixel area, the green pixel area, and the blue pixel area.

[0243] A dam 646 corresponding to the boundary of pixel region P is disposed on planarization layer 634.

[0244] An encapsulation layer 650 is formed on the second electrode 644 to prevent moisture from penetrating into the light-emitting diode D. The encapsulation layer 650 includes a first inorganic insulating layer 652, an organic insulating layer 654, and a second inorganic insulating layer 656 stacked sequentially.

[0245] A connection electrode 662 may be formed on the encapsulation layer 650, and a first insulating material layer 664a may be formed on the connection electrode 662. A first touch electrode 666 and a second touch electrode 668 may be formed on the first insulating material layer 664a, and a second insulating material layer 664b may be formed on the first touch electrode 666 and the second touch electrode 668.

[0246] A black matrix 670 and a color filter layer 672 may be formed on a second insulating material layer 664b. The black matrix 670 surrounds the pixel region P and includes an opening corresponding to the pixel region P. The color filter layer 672 is formed at the opening of the black matrix 670 to correspond to the pixel region P.

[0247] A concave lens 674 is disposed above the color filter layer 672. Multiple concave lenses 674 correspond to a pixel region P. A portion of the color filter layer 672 can be etched to form multiple concave lenses 674 on the upper surface of the color filter layer 672. The color filter layer 672 can cover at least a portion of the black matrix 670, and the concave lenses 674 can be disposed on the upper surface of the color filter layer 672. Therefore, the concave lenses 674 can cover at least a portion of the black matrix 670. That is, the concave lenses 674 can overlap with at least a portion of the black matrix 670.

[0248] A convex lens 682 is disposed on a concave lens 674. Multiple convex lenses 682 correspond to a pixel region P. For example, a first insulating layer 680 may be formed on the concave lens 674, and the convex lens 682 may be disposed on the upper surface of the first insulating layer 680.

[0249] A second insulating layer 690 is formed on the convex lens 682. The second insulating layer 690 protects the convex lens 682 and provides a flat top surface.

[0250] The refractive index of each of the color filter layer 672 and the second insulating layer 690 may be greater than the refractive index of the first insulating layer 680. The refractive indices of the color filter layer 672 and the second insulating layer 690 may be the same or different.

[0251] In one aspect of this disclosure, the refractive index of the color filter layer 672 may be greater than the refractive index of the second insulating layer 690. The difference between the refractive index of the color filter layer 672 and the refractive index of the first insulating layer 680 may be 0.1 or less.

[0252] In one aspect of this disclosure, the refractive index of the second insulating layer 690 may be greater than the refractive index of the color filter layer 672. The difference between the refractive index of the second insulating layer 690 and the refractive index of the first insulating layer 680 may be 0.1 or less.

[0253] In one aspect of this disclosure, the refractive index of the color filter layer 672 may be equal to the refractive index of the second insulating layer 690. The difference between the refractive index of the color filter layer 672 and each of the refractive indices of the second insulating layer 690 and the first insulating layer 680 may be 0.1 or less.

[0254] In one aspect of this disclosure, the refractive index of the color filter layer 672 and the refractive index of the second insulating layer 690 may each have a range of 1.5 to 1.65, and the refractive index of the first insulating layer 680 may have a range of 1.45 to 1.55.

[0255] Each of the color filter layer 672, the first insulating layer 680, and the second insulating layer 690 may be formed of an organic insulating material. For example, each of the color filter layer 672, the first insulating layer 680, and the second insulating layer 690 may be formed of epoxy resin or acrylic resin.

[0256] Convex lenses 682 and concave lenses 674 are arranged alternately. For example, each of the convex lenses 682 and concave lenses 674 may have a honeycomb shape, but is not limited thereto.

[0257] At least one end of the plurality of convex lenses 682 is located between the two ends of the concave lens 674. In other words, the center of at least one of the plurality of convex lenses 682 is located between the two centers of two adjacent concave lenses 674. That is, at least one of the plurality of convex lenses 682 does not completely overlap with the concave lens 674 and partially overlaps it.

[0258] Each of the plurality of convex lenses 682 has a first vertical lens (i.e., a first depth) V1 and a first horizontal length (i.e., a first width) H1, and each of the plurality of concave lenses 674 has a second vertical lens (i.e., a second depth) V2 and a second horizontal length (i.e., a second width) H2.

[0259] The aspect ratio (i.e., V1 / H1) of the convex lens 682 and the aspect ratio (i.e., V2 / H2) of the concave lens 674 can be the same or different. The aspect ratio (i.e., V1 / H1) of the convex lens 682 can range from 5% to 20%, and the aspect ratio (i.e., V2 / H2) of the concave lens 674 can also range from 5% to 20%. Multiple convex lenses 682 can have the same aspect ratio in each pixel region P. For example, each of the multiple convex lenses 682 can have the same first depth V1 and the same first width H1. Multiple concave lenses 674 can also have the same aspect ratio in each pixel region P. For example, each of the multiple concave lenses 674 can have the same second depth V2 and the same second width H2.

[0260] The first width H1 of the convex lens 682 and the second width H2 of the concave lens 674 may be the same or different. In one aspect of this disclosure, the first width H1 of the convex lens 682 may be greater than the second width H2 of the concave lens 674.

[0261] The convex lens 682 is disposed over the entire display area, including the space between the pixel region P and adjacent pixel regions P, while the concave lens 674 is disposed only over the light-emitting area of ​​the pixel region P. In other words, the area where the convex lens 682 is disposed is larger than the area where the concave lens 674 is disposed.

[0262] Pixel region P includes a light-emitting region and a non-light-emitting region surrounding the light-emitting region. The light-emitting region corresponds to the light-emitting diode D or the color filter layer 672, and the non-light-emitting region corresponds to the embankment 646 or the black matrix 670. Convex lens 682 has an area corresponding to the light-emitting and non-light-emitting regions, and concave lens 674 has an area corresponding to the light-emitting region.

[0263] The first insulating layer 680 in a portion of the pixel region P (e.g., the region corresponding to the light-emitting diode D) may contact the color filter layer 672. The first insulating layer 680 in the remaining portion of the pixel region P may contact the black matrix 670.

[0264] In the light-emitting display device 600 according to the sixth embodiment of the present disclosure, light from the light-emitting diode D passes through a color filter layer 672, a concave lens 674, a first insulating layer 680, a convex lens 682, and a second insulating layer 690, so that an image can be displayed on the surface of the second insulating layer 690.

[0265] The light-emitting display device 600 includes a color filter layer 672 on or above the encapsulation layer 650 in the absence of a polarizing plate, so as to reduce ambient light reflection. That is, in the light-emitting display device 600, the brightness reduction caused by the polarizing plate can be minimized or reduced, and the display quality degradation caused by ambient light reflection can be prevented.

[0266] Furthermore, without the convex lens 682 and concave lens 674, ambient light diffraction brightness non-uniformity may occur due to the step difference generated by the TFT Tr. Ambient light diffraction may be enhanced by the color filter layer 672, potentially causing rainbow brightness non-uniformity through interference between adjacent pixel regions P. However, the light-emitting display device 600 of this disclosure includes convex lenses 682 and concave lenses 674 alternately arranged on the color filter layer 672, such that ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity can be minimized, prevented, or reduced. That is, light can be dispersed or scattered by the convex lens 682 and concave lens 674, thereby minimizing, preventing, or reducing ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity.

[0267] Furthermore, since the concave lens 674 is disposed on the upper surface of the color filter layer 672 without an additional insulating layer (e.g., ...), Figure 4 The first insulating layer 430 allows the light-emitting display device 600 to have a simple structure and low production cost.

[0268] Therefore, in the light-emitting display device 600 according to the sixth embodiment of the present disclosure, ambient light diffraction brightness non-uniformity, rainbow brightness non-uniformity, and moiré fringes can be prevented without reducing brightness, ambient light reflection can be prevented, and high-quality images can be provided.

[0269] Figure 11 This is a schematic cross-sectional view illustrating a light-emitting display device according to the seventh embodiment of the present disclosure.

[0270] like Figure 11 As shown, the light-emitting display device 700 includes ( Figure 10 The substrate 601 (which includes a first pixel region P1, a second pixel region P2, and a third pixel region P3), and the area above the substrate 601 ( Figure 10 The light-emitting diode D, the convex lens 722 above the light-emitting diode D, and the concave lens 732 between the light-emitting diode D and the convex lens 722.

[0271] The first pixel region P1 can be one of the red pixel region, the green pixel region, and the blue pixel region; the second pixel region P2 can be another of the red pixel region, the green pixel region, and the blue pixel region; and the third pixel region P3 can be another of the red pixel region, the green pixel region, and the blue pixel region. The substrate 301 may also include a fourth pixel region as a white pixel region.

[0272] In one aspect of this disclosure, the first pixel region P1 may be a red pixel region, the second pixel region P2 may be a green pixel region, and the third pixel region P3 may be a blue pixel region.

[0273] For ease of explanation, the configuration below the black matrix 710 and the color filter layer 718 has been omitted.

[0274] For example, refer to Figure 10 A TFT Tr, including a semiconductor layer 610, a gate electrode 614, a source electrode 630, and a drain electrode 632, is formed on a substrate 601, and a light-emitting diode D electrically connected to the TFT Tr is disposed above the TFT Tr.

[0275] In one aspect of this disclosure, the light-emitting diode D can emit red light at a first pixel region P1, green light at a second pixel region P2, and blue light at a third pixel region P3.

[0276] Alternatively, the light-emitting diode D may emit white light at the first pixel region to the third pixel region P1, P2 and P3.

[0277] The encapsulation layer 650 is disposed above the light-emitting diode D, and a touch electrode layer including a first touch electrode 666 and a second touch electrode 668 is disposed above the encapsulation layer 650.

[0278] Refer again Figure 10 The black matrix 710 and the color filter layer 718 can be formed on the encapsulation layer 650 or the touch electrode layer. The black matrix 710 can surround each of the first to third pixel regions P1, P2, and P3, and includes an opening corresponding to each of the first to third pixel regions P1, P2, and P3. The color filter layer 718 is formed at the opening of the black matrix 710 to correspond to each of the first to third pixel regions P1, P2, and P3.

[0279] The color filter layer includes a first color filter pattern 712 corresponding to a first pixel region P1, a second color filter pattern 714 corresponding to a second pixel region P2, and a third color filter pattern 716 corresponding to a third pixel region P3. The first color filter pattern 712 is one of a red color filter pattern, a green color filter pattern, and a blue color filter pattern; the second color filter pattern 714 is another of the red, green, and blue color filter patterns; and the third color filter pattern 716 is the remaining one of the red, green, and blue color filter patterns. In one aspect of this disclosure, the first color filter pattern 712 may be a red color filter pattern, the second color filter pattern 714 may be a green color filter pattern, and the third color filter pattern 716 may be a blue color filter pattern. That is, the first color filter pattern 712, the second color filter pattern 714, and the third color filter pattern 716 may be different from each other.

[0280] A concave lens 732 is disposed above the color filter layer 718. Multiple concave lenses 732 are formed to correspond to the first to third pixel regions P1, P2, and P3. A portion of the color filter layer 718 may be etched to form multiple concave lenses 732 on the upper surface of the color filter layer 718.

[0281] A convex lens 722 is disposed on a concave lens 732. Multiple convex lenses 722 are formed to correspond to the first pixel region to the third pixel regions P1, P2, and P3. For example, a first insulating layer 720 may be formed on the concave lens 732, and the convex lens 722 may be disposed on the upper surface of the first insulating layer 720.

[0282] A second insulating layer 740 is formed on the convex lens 722. The second insulating layer 740 protects the convex lens 722 and provides a flat top surface.

[0283] The refractive index of each of the color filter layer 718 and the second insulating layer 740 may be greater than the refractive index of the first insulating layer 720. The refractive index of the color filter layer 718 and the refractive index of the second insulating layer 740 may be the same or different.

[0284] In one aspect of this disclosure, the refractive index of the color filter layer 718 may be greater than the refractive index of the second insulating layer 740. The difference between the refractive index of the color filter layer 718 and the refractive index of the first insulating layer 720 may be 0.1 or less.

[0285] In one aspect of this disclosure, the refractive index of the second insulating layer 740 may be greater than the refractive index of the color filter layer 718. The difference between the refractive index of the second insulating layer 740 and the refractive index of the first insulating layer 720 may be 0.1 or less.

[0286] In one aspect of this disclosure, the refractive index of the color filter layer 718 may be equal to the refractive index of the second insulating layer 740. The difference between the refractive index of the color filter layer 718 and each of the refractive indices of the second insulating layer 740 and the first insulating layer 720 may be 0.1 or less.

[0287] In one aspect of this disclosure, each of the refractive index of the color filter layer 718 and the refractive index of the second insulating layer 740 may have a range of 1.5 to 1.65, and the refractive index of the first insulating layer 720 may have a range of 1.45 to 1.55.

[0288] Each of the color filter layer 718, the first insulating layer 720, and the second insulating layer 740 may be formed of an organic insulating material. For example, each of the color filter layer 718, the first insulating layer 720, and the second insulating layer 740 may be formed of epoxy resin or acrylic resin.

[0289] Convex lenses 722 and concave lenses 732 are arranged alternately. For example, each of the convex lenses 722 and concave lenses 732 may have a honeycomb shape, but is not limited thereto.

[0290] At least one end of the plurality of convex lenses 722 is located between the two ends of the concave lens 732. In other words, the center of at least one of the plurality of convex lenses 722 is located between the two centers of two adjacent concave lenses 732. That is, at least one of the plurality of convex lenses 722 does not completely overlap with the concave lens 732 and partially overlaps it.

[0291] Each of the plurality of convex lenses 722 has a first vertical length (i.e., a first depth) V1 and a first horizontal length (i.e., a first width) H1. The aspect ratio (i.e., V1 / H1) of the convex lens 722 can be in the range of 5% to 20%. The plurality of convex lenses 722 can have the same shape and size in the first pixel region to the third pixel regions P1, P2 and P3.

[0292] The plurality of concave lenses 732 include a first concave lens 734 corresponding to the first pixel region P2, a second concave lens 736 corresponding to the second pixel region P2, and a third concave lens 738 corresponding to the third pixel region P3.

[0293] Each of the first concave lenses 734 in the first pixel region P1 has a vertical length (i.e., depth) V2-1 and a horizontal length (i.e., width) H2-1. Each of the second concave lenses 736 in the second pixel region P2 has a vertical length V2-2 and a horizontal length H2-2. Each of the third concave lenses 738 in the third pixel region P3 has a vertical length V2-3 and a horizontal length H2-3.

[0294] Each of the first concave lenses 734 in the first pixel region P1 has a first aspect ratio (i.e., V2-1 / H2-1). Each of the second concave lenses 736 in the second pixel region P2 has a second aspect ratio (i.e., V2-2 / H2-2). Each of the third concave lenses 738 in the third pixel region P3 has a third aspect ratio (i.e., V2-3 / H2-3).

[0295] The second aspect ratio (i.e., V2-1 / H2-1) of the second concave lens 736 is greater than each of the third aspect ratio (i.e., V2-3 / H2-3) of the third concave lens 738 and the first aspect ratio (i.e., V2-1 / H2-1) of the first concave lens 734.

[0296] In one aspect of this disclosure, the depth (V2-2) of the second concave lens 736 may be greater than the depth (V2-1) of the first concave lens 734 and the depth (V2-3) of the third concave lens 738.

[0297] In one aspect of this disclosure, the width (H2-2) of the second concave lens 736 may be smaller than the width (H2-1) of the first concave lens 734 and the width (H2-3) of the third concave lens 738.

[0298] In one aspect of this disclosure, the depth (V2-2) of the second concave lens 736 may be greater than the depth (V2-1) of the first concave lens 734 and the depth (V2-3) of the third concave lens 738, and the width (H2-2) of the second concave lens 736 may be less than the width (H2-1) of the first concave lens 734 and the width (H2-3) of the third concave lens 738.

[0299] For example, the convex lens 722 and the first concave lens 734 in the first pixel region P1 can have Figure 7A The shapes shown in the planar diagram, the convex lens 722 and the second concave lens 736 in the second pixel region P2 can have Figure 7B The shape shown in the planar diagram, and the convex lens 722 and the third concave lens 738 in the third pixel region P2 can have Figure 7C The shape shown in the plan view.

[0300] The first pixel region P1, the second pixel region P2, and the third pixel region P3 can be the red pixel region, the green pixel region, and the blue pixel region, respectively.

[0301] Since the reflectivity in the green pixel region is greater than that in the red and blue pixel regions, the second aspect ratio (i.e., V2-2 / H2-2) of the second concave lens 736 is greater than each of the third aspect ratio (i.e., V2-3 / H2-3) of the third concave lens 738 and the first aspect ratio (i.e., V2-1 / H2-1) of the first concave lens 734, so that the reflectivity difference in the first pixel region to the third pixel regions P1, P2 and P3 can be compensated.

[0302] The first aspect ratio (i.e., V2-1 / H2-1) of the first concave lens 734 and the third aspect ratio (i.e., V2-3 / H2-3) of the third concave lens 738 may be the same or different. In one aspect of this disclosure, the first aspect ratio (i.e., V2-1 / H2-1) of the first concave lens 734 may be equal to or greater than the third aspect ratio (i.e., V2-3 / H2-3) of the third concave lens 738.

[0303] In the light-emitting display device 700 according to the seventh embodiment of the present disclosure, light from the light-emitting diode D passes through a color filter layer 718, a concave lens 732, a first insulating layer 720, a convex lens 722, and a second insulating layer 740, so that an image can be displayed on the surface of the second insulating layer 740.

[0304] The light-emitting display device 700 includes a color filter layer 718 on or above the encapsulation layer 650 in the absence of a polarizing plate, so as to reduce ambient light reflection. That is, in the light-emitting display device 700, the brightness reduction caused by the polarizing plate can be minimized or reduced, and the display quality degradation caused by ambient light reflection can be prevented.

[0305] Furthermore, without the convex lens 722 and concave lens 732, ambient light diffraction brightness non-uniformity may occur due to the step difference generated by the TFT Tr. Ambient light diffraction may be enhanced by the color filter layer 718, potentially causing rainbow brightness non-uniformity through interference between adjacent pixel regions P. However, the light-emitting display device 700 of this disclosure includes convex lenses 722 and concave lenses 732 alternately arranged above the color filter layer 718, so that ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity can be minimized, prevented, or reduced. That is, light can be dispersed or scattered by the convex lens 722 and concave lens 732, so that ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity can be minimized, prevented, or reduced.

[0306] Furthermore, since the concave lens 732 in the second pixel region P2, which has a relatively high reflectivity, is relatively large, it can compensate for the reflectivity difference between pixel regions P.

[0307] Furthermore, since the concave lens 732 is used without an additional insulating layer (e.g., ( Figure 4 The first insulating layer 430 is disposed on the upper surface of the color filter layer 718, so the light-emitting display device 700 can have a simple structure and low production cost.

[0308] Therefore, in the light-emitting display device 700 according to the seventh embodiment of the present disclosure, ambient light diffraction brightness non-uniformity, rainbow brightness non-uniformity, and moiré fringes can be prevented without reducing brightness, ambient light reflection can be prevented, and high-quality images can be provided.

[0309] Figure 12 This is a schematic cross-sectional view illustrating a light-emitting display device according to the eighth embodiment of the present disclosure.

[0310] like Figure 12 As shown, the light-emitting display device 800 includes ( Figure 10 The substrate 601 (which includes a first pixel region P1, a second pixel region P2, and a third pixel region P3), and the light-emitting diode D above the substrate 601. Figure 10 (a) a convex lens 822 above the light-emitting diode D and a concave lens 832 between the light-emitting diode D and the convex lens 822.

[0311] The first pixel region P1 can be one of the red pixel region, the green pixel region, and the blue pixel region; the second pixel region P2 can be another of the red pixel region, the green pixel region, and the blue pixel region; and the third pixel region P3 can be another of the red pixel region, the green pixel region, and the blue pixel region. The substrate 301 may also include a fourth pixel region as a white pixel region.

[0312] In one aspect of this disclosure, the first pixel region P1 may be a red pixel region, the second pixel region P2 may be a green pixel region, and the third pixel region P3 may be a blue pixel region.

[0313] For ease of explanation, the configuration below the black matrix 810 and the color filter layer 818 has been omitted.

[0314] For example, refer to Figure 10 A TFT Tr, including a semiconductor layer 610, a gate electrode 614, a source electrode 630, and a drain electrode 632, is formed on a substrate 601, and a light-emitting diode D electrically connected to the TFT Tr is disposed above the TFT Tr.

[0315] In one aspect of this disclosure, the light-emitting diode D can emit red light at a first pixel region P1, green light at a second pixel region P2, and blue light at a third pixel region P3.

[0316] Alternatively, the light-emitting diode D may emit white light at the first pixel region to the third pixel region P1, P2 and P3.

[0317] The encapsulation layer 650 is disposed above the light-emitting diode D, and a touch electrode layer including a first touch electrode 666 and a second touch electrode 668 is disposed on the encapsulation layer 650.

[0318] Refer again Figure 12 The black matrix 810 and the color filter layer 818 can be formed on the encapsulation layer 650 or the touch electrode layer. The black matrix 810 can surround each of the first to third pixel regions P1, P2, and P3, and includes an opening corresponding to each of the first to third pixel regions P1, P2, and P3. The color filter layer 818 is formed at the opening of the black matrix 810 to correspond to each of the first to third pixel regions P1, P2, and P3.

[0319] The color filter layer includes a first color filter pattern 812 corresponding to a first pixel region P1, a second color filter pattern 814 corresponding to a second pixel region P2, and a third color filter pattern 816 corresponding to a third pixel region P3. The first color filter pattern 812 is one of a red color filter pattern, a green color filter pattern, and a blue color filter pattern; the second color filter pattern 814 is another of the red, green, and blue color filter patterns; and the third color filter pattern 816 is the remaining one of the red, green, and blue color filter patterns. In one aspect of this disclosure, the first color filter pattern 812 may be a red color filter pattern, the second color filter pattern 814 may be a green color filter pattern, and the third color filter pattern 816 may be a blue color filter pattern. That is, the first color filter pattern 812, the second color filter pattern 814, and the third color filter pattern 816 may be different from each other.

[0320] A concave lens 832 is disposed above the color filter layer 818. Multiple concave lenses 832 are formed to correspond to the first to third pixel regions P1, P2, and P3. A portion of the color filter layer 818 may be etched to form multiple concave lenses 832 on the upper surface of the color filter layer 818.

[0321] A convex lens 822 is disposed on a concave lens 832. Multiple convex lenses 822 are formed to correspond to the first pixel region to the third pixel regions P1, P2, and P3. For example, a first insulating layer 820 may be formed on the concave lens 832, and the convex lens 822 may be disposed on the upper surface of the first insulating layer 820.

[0322] A second insulating layer 840 is formed on the convex lens 822. The second insulating layer 840 protects the convex lens 822 and provides a flat top surface.

[0323] The refractive index of each of the color filter layer 818 and the second insulating layer 840 may be greater than the refractive index of the first insulating layer 820. The refractive index of the color filter layer 818 and the refractive index of the second insulating layer 840 may be the same or different.

[0324] In one aspect of this disclosure, the refractive index of the color filter layer 818 may be greater than the refractive index of the second insulating layer 840. The difference between the refractive index of the color filter layer 818 and the refractive index of the first insulating layer 820 may be 0.1 or less.

[0325] In one aspect of this disclosure, the refractive index of the second insulating layer 840 may be greater than the refractive index of the color filter layer 818. The difference between the refractive index of the second insulating layer 840 and the refractive index of the first insulating layer 820 may be 0.1 or less.

[0326] In one aspect of this disclosure, the refractive index of the color filter layer 818 may be equal to the refractive index of the second insulating layer 840. The difference between the refractive index of the color filter layer 818 and each of the refractive indices of the second insulating layer 840 and the first insulating layer 820 may be 0.1 or less.

[0327] In one aspect of this disclosure, each of the refractive index of the color filter layer 818 and the refractive index of the second insulating layer 840 may have a range of 1.5 to 1.65, and the refractive index of the first insulating layer 820 may have a range of 1.45 to 1.55.

[0328] Each of the color filter layer 818, the first insulating layer 820, and the second insulating layer 840 may be formed of an organic insulating material. For example, each of the color filter layer 818, the first insulating layer 820, and the second insulating layer 840 may be formed of epoxy resin or acrylic resin.

[0329] Each of the first to third insulating layers 830, 820 and 840 may be formed of an organic insulating material. For example, each of the first to third insulating layers 830, 820 and 840 may be formed of epoxy resin or acrylic acid.

[0330] Each of the color filter layer 818, the first insulating layer 820, and the second insulating layer 840 may be formed of an organic insulating material. For example, each of the color filter layer 818, the first insulating layer 820, and the second insulating layer 840 may be formed of epoxy resin or acrylic resin.

[0331] Convex lenses 822 and concave lenses 832 are arranged alternately. For example, each of the convex lenses 822 and concave lenses 832 may have a honeycomb shape, but is not limited thereto.

[0332] One end of at least one of the convex lenses 822 is located between the two ends of the concave lens 832. In other words, the center of at least one of the convex lenses 822 is located between the two centers of two adjacent concave lenses 832. That is, at least one of the convex lenses 822 does not completely overlap with the concave lens 832 and partially overlaps it.

[0333] Each of the plurality of convex lenses 822 has a second vertical length (i.e., second depth) V2 and a second horizontal length (i.e., second width) H2. The aspect ratio (i.e., V2 / H2) of the convex lens 822 can be in the range of 5% to 20%. The plurality of convex lenses 822 can have the same shape and size in the first pixel region to the third pixel regions P1, P2 and P3.

[0334] The plurality of convex lenses 822 include a first convex lens 824 corresponding to the first pixel region P2, a second convex lens 826 corresponding to the second pixel region P2, and a third concave lens 838 corresponding to the third pixel region P3.

[0335] Each of the first convex lenses 824 in the first pixel region P1 has a vertical length (i.e., depth) V1-1 and a horizontal length (i.e., width) H1-1. Each of the second convex lenses 826 in the second pixel region P2 has a vertical length V1-2 and a horizontal length H1-2. Each of the third convex lenses 828 in the third pixel region P3 has a vertical length V1-3 and a horizontal length H1-3.

[0336] Each of the first convex lenses 824 in the first pixel region P1 has a first aspect ratio (i.e., V1-1 / H1-1). Each of the second convex lenses 826 in the second pixel region P2 has a second aspect ratio (i.e., V1-2 / H1-2). Each of the third convex lenses 828 in the third pixel region P3 has a third aspect ratio (i.e., V1-3 / H1-3).

[0337] The second aspect ratio (i.e., V1-1 / H1-1) of the second convex lens 826 is greater than each of the third aspect ratio (i.e., V1-3 / H1-3) of the third convex lens 828 and the first aspect ratio (i.e., V1-1 / H1-1) of the first convex lens 824.

[0338] In one aspect of this disclosure, the depth (V1-2) of the second convex lens 826 may be greater than the depth (V1-1) of the first convex lens 824 and the depth (V1-3) ​​of the third convex lens 828.

[0339] In one aspect of this disclosure, the width (H1-2) of the second convex lens 826 may be smaller than the width (H1-1) of the first convex lens 824 and the width (H1-3) of the third convex lens 828.

[0340] In one aspect of this disclosure, the depth (V1-2) of the second convex lens 826 may be greater than the depth (V1-1) of the first convex lens 824 and the depth (V1-3) ​​of the third convex lens 828, and the width (H1-2) of the second convex lens 826 may be less than the width (H1-1) of the first convex lens 824 and the width (H1-3) of the third concave lens 838.

[0341] For example, the concave lens 832 and the first convex lens 824 in the first pixel region P1 can have Figure 9A The shapes shown in the planar diagram, the concave lens 832 and the second convex lens 826 in the second pixel region P2 can have Figure 9BThe shape shown in the planar diagram, and the concave lens 832 and the third convex lens 828 in the third pixel region P2 can have Figure 9C The shape shown in the plan view.

[0342] The first pixel region P1, the second pixel region P2, and the third pixel region P3 can be the red pixel region, the green pixel region, and the blue pixel region, respectively.

[0343] Since the reflectivity in the green pixel region is greater than that in the red and blue pixel regions, the second aspect ratio (i.e., V1-2 / H1-2) of the second convex lens 826 is greater than each of the third aspect ratio (i.e., V1-3 / H1-3) of the third convex lens 828 and the first aspect ratio (i.e., V1-1 / H1-1) of the first convex lens 824, so that the reflectivity difference in the first pixel region to the third pixel regions P1, P2 and P3 can be compensated.

[0344] The first aspect ratio (i.e., V1-1 / H1-1) of the first convex lens 824 and the third aspect ratio (i.e., V1-3 / H1-3) of the third convex lens 828 may be the same or different. In one aspect of this disclosure, the first aspect ratio (i.e., V1-1 / H1-1) of the first convex lens 824 may be equal to or greater than the third aspect ratio (i.e., V1-3 / H1-3) of the third convex lens 828.

[0345] In the light-emitting display device 800 according to the eighth embodiment of the present disclosure, light from the light-emitting diode D passes through a color filter layer 818, a concave lens 832, a first insulating layer 820, a convex lens 822, and a second insulating layer 840, so that an image can be displayed on the surface of the second insulating layer 840.

[0346] The light-emitting display device 800 includes a color filter layer 818 on or above the encapsulation layer 650 in the absence of a polarizing plate, so as to reduce ambient light reflection. That is, in the light-emitting display device 800, the brightness reduction caused by the polarizing plate can be minimized or reduced, and the display quality degradation caused by ambient light reflection can be prevented.

[0347] Furthermore, without the convex lens 822 and concave lens 832, ambient light diffraction brightness non-uniformity may occur due to the step difference generated by the TFT Tr. Ambient light diffraction may be enhanced by the color filter layer 818, which may cause rainbow brightness non-uniformity through interference between adjacent pixel regions P. However, the light-emitting display device 800 of this disclosure includes convex lenses 822 and concave lenses 832 alternately arranged above the color filter layer 818, so that ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity can be minimized, prevented, or reduced. That is, light can be dispersed or scattered by the convex lens 822 and concave lens 832, so that ambient light diffraction brightness non-uniformity and / or rainbow brightness non-uniformity can be minimized, prevented, or reduced.

[0348] Furthermore, since the convex lens 822 in the second pixel region P2, which has a relatively high reflectivity, is relatively large, it can compensate for the reflectivity difference between pixel regions P.

[0349] Furthermore, since the concave lens 832 is used without an additional insulating layer (e.g., ( Figure 4 The first insulating layer 430 is disposed on the upper surface of the color filter layer 818, so the light-emitting display device 800 can have a simple structure and low production cost.

[0350] Therefore, in the light-emitting display device 800 according to the eighth embodiment of the present disclosure, ambient light diffraction brightness non-uniformity, rainbow brightness non-uniformity, and moiré fringes can be prevented without reducing brightness, ambient light reflection can be prevented, and high-quality images can be provided.

[0351] As described above, in the light-emitting display device of this disclosure, a convex lens is disposed above a light-emitting diode, and concave lenses, arranged alternately with the convex lens, are disposed between the light-emitting diode and the convex lens. In this case, the concave lenses are disposed on an additional insulating layer or color filter layer. In the light-emitting display device of this disclosure, ambient light reflection can be prevented without reducing brightness, ambient light diffraction brightness uniformity, rainbow brightness uniformity, or moiré fringes, and high-quality images can be provided.

[0352] It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of this disclosure without departing from the technical concept or scope thereof. Therefore, any modifications and variations falling within the scope of the appended claims and their equivalents are intended to cover this disclosure.

[0353] Cross-references to related applications

[0354] This application claims priority to Korean Patent Application No. 10-2024-0112997, filed in Korea on August 22, 2024, which is incorporated herein by reference in its entirety.

Claims

1. A light-emitting display device, the light-emitting display device comprising: substrate; Light-emitting diode, the light-emitting diode being mounted on the substrate; A dam, the dam surrounding the light-emitting diode; A thin-film transistor is located between the substrate and the light-emitting diode; Encapsulation layer, the encapsulation layer being on the light-emitting diode; A color filter layer, which is on the encapsulation layer and corresponds to the light-emitting diode; A convex lens, the convex lens being on the color filter layer; as well as A touch electrode layer is provided between the encapsulation layer and the convex lens.

2. The light-emitting display device according to claim 1, wherein, The convex lens is only disposed on the color filter layer.

3. The light-emitting display device according to claim 1, wherein, The convex lens has the same planar area as the color filter layer.

4. The light-emitting display device according to claim 1, further comprising: A first insulating layer covers the color filter layer. The convex lens is disposed on the surface of the first insulating layer.

5. The light-emitting display device according to claim 4, wherein, The convex lens corresponds to the color filter layer, and the first insulating layer has a uniform top surface on the outside of the color filter layer.

6. The light-emitting display device according to claim 5, further comprising: A second insulating layer is placed on top of the first insulating layer. The second insulating layer has a first thickness corresponding to the convex lens and a second thickness corresponding to the uniform top surface, and The second thickness is greater than the first thickness.

7. The light-emitting display device according to claim 1, further comprising: A black matrix, wherein the black matrix is ​​located at the boundary of the pixel region of the substrate. The ends of the color filter layer and the ends of the convex lens are disposed on the ends of the black matrix.

8. The light-emitting display device according to claim 1, wherein, The light-emitting display device is a foldable display device.

9. The light-emitting display device according to claim 1, in, The embankment includes light-absorbing particles.

10. The light-emitting display device according to claim 9, wherein, The light-absorbing particles include one of carbon black, carbon nanotubes (CNTs), and graphene.

11. The light-emitting display device according to claim 1, further comprising: A concave lens, located between the light-emitting diode and the convex lens. The end of the convex lens is located between the two ends of the concave lens.

12. The light-emitting display device according to claim 11, wherein, The width of the convex lens is the same as the width of the concave lens.

13. The light-emitting display device according to claim 11, further comprising: A first insulating layer covers the color filter layer; A second insulating layer, wherein the second insulating layer covers the first insulating layer; as well as A third insulating layer is provided on the convex lens. The concave lens is disposed on the surface of the first insulating layer, and The convex lens is disposed on the surface of the second insulating layer.

14. The light-emitting display device according to claim 11, wherein, The concave lens is disposed on the surface of the color filter layer.

15. The light-emitting display device according to claim 14, further comprising: A second insulating layer covers the concave lens; as well as A third insulating layer is provided on the convex lens. The convex lens is disposed on the surface of the second insulating layer.

16. The light-emitting display device according to claim 11, further comprising: A black matrix, wherein the black matrix is ​​located at the boundary of the pixel region of the substrate. The concave lens covers at least a portion of the black matrix.

17. The light-emitting display device according to claim 11, wherein the light-emitting display device comprises a first pixel region, a second pixel region, and a third pixel region. in, The concave lens includes a first concave lens in the first pixel region, a second concave lens in the second pixel region, and a third concave lens in the third pixel region. Wherein, the ratio of the first depth to the first width in the first concave lens is less than the ratio of the second depth to the second width in the second concave lens. Wherein, the ratio of the third depth to the third width in the third concave lens is less than the ratio of the second depth to the second width in the second concave lens, and Wherein, the ratio of the third depth to the third width in the third concave lens is equal to or less than the ratio of the first depth to the first width in the first concave lens.

18. The light-emitting display device according to claim 11, wherein the light-emitting display device comprises a first pixel region, a second pixel region, and a third pixel region. in, The convex lens includes a first convex lens in the first pixel region, a second convex lens in the second pixel region, and a third convex lens in the third pixel region. Wherein, the ratio of the first depth to the first width in the first convex lens is less than the ratio of the second depth to the second width in the second convex lens. Wherein, the ratio of the third depth to the third width in the third convex lens is less than the ratio of the second depth to the second width in the second convex lens, and Wherein, the ratio of the third depth to the third width in the third convex lens is equal to or less than the ratio of the first depth to the first width in the first convex lens.

19. The light-emitting display device according to claim 11, wherein the light-emitting display device comprises a plurality of pixel regions, wherein, Each pixel region includes a light-emitting region and a non-light-emitting region, and The convex lens has an area corresponding to the light-emitting area and the non-light-emitting area, and the concave lens has an area corresponding to the light-emitting area.

20. The light-emitting display device according to claim 11, wherein, The depth-to-width ratio in the convex lens is different from that in the concave lens.

Images