Display device

Abstract

The display device can comprise a display panel and a display panel, comprising a pixel defining film defining a first light emitting opening portion, a second light emitting opening portion, and a third light emitting opening portion, and a first light emitting element, a second light emitting element, and a third light emitting element disposed in the first light emitting opening portion to the third light emitting opening portion and providing light of different colors from each other; and an anti-reflection layer disposed on the display panel and including a first color filter and a second color filter. The first color filter may overlap the first light emitting element, and the second color filter may overlap the second light emitting element and the third light emitting element.

Description

Technical Field

[0001] The utility model relates to a display device comprising a plurality of color filters. Background Art

[0002] The display device displays various images in the display screen to provide information to the user. Generally, the display device displays information in the allocated screen. The display device may include a display panel, an anti-reflection layer, and a window portion. Utility Model Content

[0003] The purpose of the utility model is to provide a display device which improves process efficiency.

[0004] A display device according to an embodiment of the present invention may include: a display panel including a pixel definition film defining a first light-emitting opening, a second light-emitting opening, and a third light-emitting opening, and a first light-emitting element, a second light-emitting element, and a third light-emitting element disposed in the first light-emitting opening to the third light-emitting opening and providing light of different colors from each other; and an anti-reflection layer disposed on the display panel, including a first color filter and a second color filter. The first color filter may overlap with the first light-emitting element, and the second color filter may overlap with the second light-emitting element and the third light-emitting element.

[0005] The first color filter may transmit light of a first color, and the second color filter may transmit light of a second color and a third color different from the first color.

[0006] It may be that the second color filter includes a blue pigment.

[0007] It may be that the second color filter further includes a green pigment.

[0008] It may be that the second color filter further includes at least one of a cyan pigment and a yellow pigment.

[0009] Alternatively, the anti-reflection layer further includes an outer coating layer covering the first color filter and the second color filter.

[0010] The second color filter may include: a first sub-color filter overlapping the second light emitting element; and a second sub-color filter overlapping the third light emitting element.

[0011] It may be that the first sub-color filter and the second sub-color filter are configured to be spaced apart from each other.

[0012] The first sub-color filter and the second sub-color filter may be formed through the same process.

[0013] The anti-reflection layer may further include a light shielding pattern configured to overlap with the pixel definition film.

[0014] It may be that the first sub-color filter has a first thickness, and the second sub-color filter has a second thickness greater than the first thickness.

[0015] The first color filter may overlap with the first light emitting element and the pixel definition film, and the second color filter may overlap with the second light emitting element, the third light emitting element, and the pixel definition film.

[0016] A portion of the first color filter and a portion of the second color filter may overlap in a region where the pixel definition film is arranged.

[0017] A display device according to an embodiment of the present invention includes: a display panel including a pixel definition film defining a first light-emitting opening, a second light-emitting opening, and a third light-emitting opening, and a first light-emitting element, a second light-emitting element, and a third light-emitting element arranged in the first light-emitting opening to the third light-emitting opening and providing light of different colors from each other; and an anti-reflection layer arranged on the display panel. The anti-reflection layer may include: a first color filter that allows light of a first color to pass through; and a second color filter that allows light of a second color different from the first color and light of a third color different from the first color and the second color to pass through.

[0018] The first color filter may overlap with the first light emitting element, and the second color filter may overlap with the second light emitting element and the third light emitting element.

[0019] The second color filter may include: a first sub-color filter overlapping the second light emitting element; and a second sub-color filter overlapping the third light emitting element, and the first sub-color filter and the second sub-color filter are formed by the same process.

[0020] The anti-reflection layer may further include a light shielding pattern configured to overlap with the pixel definition film, and the first sub-color filter and the second sub-color filter may be configured to be spaced apart from each other.

[0021] It may be that the first sub-color filter has a first thickness, and the second sub-color filter has a second thickness greater than the first thickness.

[0022] The first color filter may be arranged to overlap with the first light emitting element and the pixel definition film, and the second color filter may be arranged to overlap with the second light emitting element, the third light emitting element, and the pixel definition film.

[0023] A portion of the first color filter and a portion of the second color filter may overlap in a region where the pixel definition film is arranged.

[0024] (Effect of utility model)

[0025] As described above, the display device may include a first sub-color filter overlapping with the second light-emitting element and a second sub-color filter overlapping with the third light-emitting element. The first sub-color filter and the second sub-color filter may be patterned using the same mask. Therefore, the number of masks required to form the display device may be reduced, and the efficiency of the display device manufacturing process may be improved.

[0026] In addition, the thickness of the color filter, the concentration of the pigment, or the combination of the pigments can be adjusted to adjust the transmittance of the color filter by wavelength. As the second thickness of the second sub-color filter is greater than the first thickness of the first sub-color filter, the transmittance of the second color of the second light-emitting area overlapping with the first sub-color filter can be increased, and the reflectivity of the third light-emitting area overlapping with the second sub-color filter can be reduced. Therefore, the quality of the display device can be improved.

[0027] As described above, a portion of the first color filter and a portion of the second color filter may overlap in the region where the pixel definition film is configured. As the first color filter and the second color filter are configured to overlap, they function as a light shielding pattern, and the process of forming the light shielding pattern can be omitted. By reducing the number of masks required to form the display device, the efficiency of the display device manufacturing process can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional diagram of a display device according to an embodiment of the present utility model.

[0029] Figure 2a It is a schematic cross-sectional view of a display device according to an embodiment of the present invention.

[0030] Figure 2b It is a cross-sectional view of a display panel according to an embodiment of the present invention.

[0031] Figure 3 It is a cross-sectional view of a display device according to an embodiment of the present invention.

[0032] Figure 4 It is a cross-sectional view of a display device according to an embodiment of the present invention.

[0033] Figure 5 It is a cross-sectional view of a display device according to an embodiment of the present invention.

[0034] Figure 6 It is a cross-sectional view of a display device according to a comparative example of the present invention.

[0035] Figure 7 It is a cross-sectional view of a display device according to a comparative example of the present invention.

[0036] Figure 8 Yes means Figure 3 The wavelength transmittance curve of the second color filter and Figure 7 A graph showing transmittance curves according to wavelength of a red filter, a green filter, and a blue filter.

[0037] Explanation of symbols:

[0038] DD: display device; DP: display panel; PDL: pixel definition film; ARL: anti-reflection layer; CF1: first color filter; CF2: second color filter; SCF1: first sub-color filter; SCF2: second sub-color filter; BM: shading pattern; OC: overcoat layer. DETAILED DESCRIPTION

[0039] In this specification, when a certain component (or region, layer, part, etc.) is mentioned to be located on, connected to or combined with other components, it means that it can be directly configured / connected / combined on the other components, or a third component can be configured in between.

[0040] The same symbols refer to the same components. In addition, in the drawings, the thickness, ratio and size of the components are exaggerated for the effective description of the technical content. "And / or" includes all combinations that can define more than one of the related components.

[0041] The terms "first", "second", etc. may be used to describe various constituent elements, but the constituent elements shall not be limited to the terms. The terms are used only to distinguish one constituent element from other constituent elements. For example, without exceeding the scope of the invention, the first constituent element may be named as the second constituent element, and similarly, the second constituent element may be named as the first constituent element. A singular expression includes a plurality of expressions when there is no clear contrary meaning in the text.

[0042] In addition, the terms “below”, “on the lower side”, “above”, “on the upper side”, etc. are used to explain the connection relationship between the components shown in the drawings. The above terms are relative concepts and are explained based on the directions shown in the drawings.

[0043] Terms such as “including” or “having” should be understood to refer to the existence of features, numbers, steps, operations, constituent elements, parts or combinations thereof recorded in the specification, and do not exclude in advance the existence or additional possibility of one or more other features, numbers, steps, operations, constituent elements, parts or combinations thereof.

[0044] Terms such as "part" and "unit" refer to software components or hardware components that perform specific functions. Hardware components may include, for example, FPGA (field-programmable gate array) or ASIC (application-specific integrated circuit). Software components may refer to data used by executable code and / or executable code in accessible storage media. Therefore, software components may be, for example, individual-oriented software components, class components, and job components, and may include processes, functions, attributes, steps, subroutines, program code segments, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrangements, or variables.

[0045] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this specification have the same meaning as those generally understood by those skilled in the art. In addition, such terms as defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant technology, and should not be interpreted as an overly idealized or overly formal meaning unless clearly defined in this application.

[0046] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0047] Figure 1 It is a perspective view of a display device DD according to an embodiment of the present invention.

[0048] In one embodiment, the display device DD may be a large electronic device such as a television, a monitor, or an external advertising board. In addition, the display device DD may be a small or medium-sized electronic device such as a personal computer, a notebook computer, a personal digital terminal, a car navigation unit, a game console, a smart phone, a tablet, and a camera. However, this is an example, and other display devices may also be used without exceeding the concept of the present invention.

[0049] Reference Figure 1 The display device DD can display an image toward the third direction DR3 on a display surface DP-IS that is parallel to the first direction DR1 and the second direction DR2. The image may include a dynamic image or a static image. The display surface DP-IS that displays the image may correspond to the front surface of the display device DD.

[0050] In this embodiment, the front surface (or upper surface) and the back surface (or lower surface) of each component are defined based on the direction of displaying the image. The front surface and the back surface may be opposite to each other in the third direction DR3, and the normal direction of each of the front surface and the back surface may be parallel to the third direction DR3. On the other hand, the directions indicated by the first direction DR1 to the third direction DR3 are relative concepts and may be transformed into other directions. In this specification, "on a plane" may refer to the situation observed in the third direction DR3.

[0051] The display device DD may include a display area DA and a non-display area NDA. Pixels PX are arranged in the display area DA, and pixels PX are not arranged in the non-display area NDA. The non-display area NDA is defined along the edge of the display surface DP-IS. The non-display area NDA may surround the display area DA. However, this is an example and is not limited to this. For example, in one embodiment of the present invention, the non-display area NDA may be omitted or may be arranged only on one side of the display area DA. In addition, in Figure 1 A flat display device DD is exemplarily shown in FIG. 4 , but the display device DD may also have a curved shape.

[0052] Figure 2a It is a schematic cross-sectional view of a display device DD according to an embodiment of the present invention.

[0053] Reference Figure 2a , the display device DD may include a display panel DP, an anti-reflection layer ARL, and a window portion WM. The display panel DP may include a display layer DPL and an input sensor layer ISL.

[0054] The display layer DPL may be a light-emitting display layer, for example, the display layer DPL may be an organic light-emitting display layer, an inorganic light-emitting display layer, an organic-inorganic light-emitting display layer, a micro-LED display layer, or a nano-LED display layer.

[0055] The input sensor layer ISL may be configured on the display layer DPL. The input sensor layer ISL may sense external input applied from the outside. The external input may be an input of a user. The user input may include various forms of external input such as a part of the user's body, light, heat, a pen, or pressure.

[0056] The input sensor layer ISL may be formed on the display layer DPL through a continuous process. In this case, the input sensor layer ISL may be formed directly on the display layer DPL. In this specification, "B configuration is directly configured on A configuration" may mean that no third component is configured between A configuration and B configuration. For example, no adhesive layer may be configured between the input sensor layer ISL and the display layer DPL.

[0057] The anti-reflection layer ARL may be disposed on the input sensor layer ISL. The anti-reflection layer ARL may reduce reflectivity of external light. The anti-reflection layer ARL may be directly disposed on the input sensor layer ISL through a continuous process.

[0058] The anti-reflection layer ARL may include a light emitting area LA (see Figure 2a ) Overlapping color filters CF (refer to Figure 3 ). The color filter CF may include a plurality of color filters. In one embodiment of the present invention, the anti-reflection layer ARL may further include a light shielding pattern BM (refer to Figure 3 The light shielding pattern BM may be aligned with the non-luminous area NLA of the display layer DPL (refer to Figure 2b Alternatively, the light shielding pattern BM may overlap with a reflective structure (eg, the second conductive layer 200-CL2 (see Figure 2b The specific description of the anti-reflection layer ARL will be given later.

[0059] The window portion WM may be disposed on the anti-reflection layer ARL. The window portion WM and the anti-reflection layer ARL may be bonded via an adhesive layer. The adhesive layer may be a pressure sensitive adhesive film (PSA) or an optically clear adhesive (OCA).

[0060] The window portion WM includes at least one base layer. The base layer may be a glass substrate or a synthetic resin film. The window portion WM may have a multilayer structure. The window portion WM may include a thin film glass substrate and a synthetic resin film disposed on the thin film glass substrate. The thin film glass substrate and the synthetic resin film may be combined by an adhesive layer, and the adhesive layer and the synthetic resin film may be separated from the thin film glass substrate in order to replace them.

[0061] In one embodiment of the present invention, the adhesive layer may be omitted, and the window portion WM may be directly disposed on the anti-reflection layer ARL. The anti-reflection layer ARL may be coated with an organic substance, an inorganic substance, or a ceramic substance.

[0062] Figure 2b It is a cross-sectional view of a display panel DP according to an embodiment of the present invention.

[0063] exist Figure 2b FIG. 4 shows a cross section corresponding to a light emitting area LA and a surrounding non-light emitting area NLA. Figure 2b Only one light emitting area LA is shown illustratively in FIG. 1 , but a plurality of light emitting areas LA may be provided. Figure 2b1 shows a light emitting element ED and a transistor TFT connected thereto. The transistor TFT may be one of a plurality of transistors included in the driving circuit of the pixel PX. In this embodiment, the transistor TFT is described as a silicon transistor, but it may also be a metal oxide transistor.

[0064] Reference Figure 2b The display panel DP may include a display layer DPL and an input sensor layer ISL. The display layer DPL may include a base layer 110 , a circuit layer 120 , a light emitting element layer 130 , and a thin film encapsulation layer 140 .

[0065] The base layer 110 may provide a base surface for configuring the circuit layer 120. The base layer 110 may be a rigid substrate or a flexible substrate that is bendable, foldable, or rollable. The base layer 110 may be a glass substrate, a metal substrate, or a polymer substrate. However, the embodiments of the present invention are not limited thereto, and the base layer 110 may include an inorganic layer, an organic layer, or a composite material layer.

[0066] The base layer 110 may have a multi-layer structure. For example, the base layer 110 may include a first synthetic resin layer, a multi-layer or single-layer inorganic layer, and a second synthetic resin layer disposed on the multi-layer or single-layer inorganic layer. The first synthetic resin layer and the second synthetic resin layer may include polyimide-based resins, respectively, without particular limitation.

[0067] The circuit layer 120 may be disposed on the base layer 110. The circuit layer 120 may include an insulating layer, a semiconductor pattern, a conductive pattern, a signal line, a driving circuit of the pixel PX, etc. For example, the circuit layer 120 may include a buffer layer 10br, a first insulating layer 10, a second insulating layer 20, a third insulating layer 30, a fourth insulating layer 40, a fifth insulating layer 50, a sixth insulating layer 60, a signal transfer region SCL, and a plurality of connection electrodes CNE1 and CNE2.

[0068] The buffer layer 10br may be disposed on the base layer 110. The buffer layer 10br may prevent metal atoms or impurities from diffusing from the base layer 110 to the semiconductor pattern on the upper side. The semiconductor pattern includes an active region AC1 of the transistor TFT. A back metal layer may be additionally disposed between the base layer 110 and the buffer layer 10br. The back metal layer may be disposed at the lower portion of the transistor TFT to block external light from reaching the transistor TFT.

[0069] The semiconductor pattern may be disposed on the buffer layer 10br. The semiconductor pattern may include a silicon semiconductor. For example, the silicon semiconductor may include amorphous silicon, polycrystalline silicon, etc. For example, the semiconductor pattern may include low temperature polycrystalline silicon.

[0070] The semiconductor pattern may include a first region with high conductivity and a second region with low conductivity. The first region may be doped with an N-type dopant or a P-type dopant. A P-type transistor may include a doped region doped with a P-type dopant, and an N-type transistor may include a doped region doped with an N-type dopant. The second region may be a non-doped region or a region doped at a lower concentration than the first region.

[0071] The conductivity of the first region may be greater than that of the second region, and the first region may substantially function as an electrode or a signal line. The second region may substantially correspond to an active region (or channel) AC1 of a transistor TFT. In other words, a portion of the semiconductor pattern may be an active region AC1 of a transistor TFT, another portion may be a source SE1 or a drain DE1 of a transistor TFT, and another portion may be a connecting electrode CNE1, CNE2 or a connecting signal line.

[0072] The transistor TFT may include a source region (or source) SE1, an active region (or channel) AC1, a drain region (or drain) DE1, and a gate GT1. The source region SE1, the active region AC1, and the drain region DE1 of the transistor TFT may be formed by a semiconductor pattern. The source region SE1 and the drain region DE1 may extend from the active region AC1 in opposite directions to each other in a cross section. Figure 2b A portion of the signal transfer region SCL formed of the semiconductor pattern is shown in FIG. Although not shown separately, the signal transfer region SCL may be connected to the drain electrode DE1 of the transistor TFT in a plane.

[0073] The first insulating layer 10 may be disposed on the buffer layer 10br. The first insulating layer 10 may cover the source electrode SE1, the active region AC1, the drain electrode DE1, and the signal transmission region SCL of the transistor TFT disposed on the buffer layer 10br.

[0074] The first insulating layer 10 may include an inorganic layer and / or an organic layer, and may have a single-layer structure or a multi-layer structure. The inorganic layer may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide. In the present embodiment, the first insulating layer 10 may be a single-layer silicon oxide layer. In addition to the first insulating layer 10, the insulating layer described later of the circuit layer 120 may also be an inorganic layer and / or an organic layer, and may have a single-layer structure or a multi-layer structure. The inorganic layer may include at least one of the above-mentioned substances, but is not limited thereto.

[0075] The gate GT1 of the transistor TFT may be disposed on the first insulating layer 10. The gate GT1 may be a part of the metal pattern. The gate GT1 may overlap with the active area AC1. In the process of doping the semiconductor pattern, the gate GT1 may function as a mask. The gate GT1 may include titanium (Ti), silver (Ag), an alloy containing silver, molybdenum (Mo), an alloy containing molybdenum, aluminum (Al), an alloy containing aluminum, aluminum nitride (AlN), tungsten (W), tungsten nitride (WN), copper (Cu), indium tin oxide (ITO), indium zinc oxide (IZO), etc., but not particularly prior to this.

[0076] The second insulating layer 20 may be disposed on the first insulating layer 10 to cover the gate GT1 . The third insulating layer 30 may be disposed on the second insulating layer 20 .

[0077] The first connection electrode CNE1 may be disposed on the third insulating layer 30. The first connection electrode CNE1 may be connected to the signal transfer region SCL through a contact hole CNT-1 penetrating the first insulating layer 10 to the third insulating layer 30. The fourth insulating layer 40 may be disposed on the third insulating layer 30 to cover the first connection electrode CNE1. The fourth insulating layer 40 may be an organic layer.

[0078] The fifth insulating layer 50 may be disposed on the fourth insulating layer 40. The second connection electrode CNE2 may be disposed on the fifth insulating layer 50. The second connection electrode CNE2 may be connected to the first connection electrode CNE1 through a contact hole CNT-2 penetrating the fourth insulating layer 40 and the fifth insulating layer 50. The fifth insulating layer 50 may be an organic layer.

[0079] The sixth insulating layer 60 may be disposed on the fifth insulating layer 50 to cover the second connection electrode CNE2. The sixth insulating layer 60 may be an organic layer. The stacked structure of the first insulating layer 10 to the sixth insulating layer 60 is only an example, and additional conductive layers and insulating layers may be further disposed in addition to the first insulating layer 10 to the sixth insulating layer 60.

[0080] The light emitting element layer 130 may be disposed on the circuit layer 120. The light emitting element layer 130 may include a light emitting element ED and a pixel definition layer PDL.

[0081] The light emitting element ED may include an organic light emitting element, an inorganic light emitting element, an organic-inorganic light emitting element, a quantum dot light emitting element, a micro LED light emitting element, or a nano LED light emitting element. However, the embodiment is not limited thereto, and the light emitting element ED may include various embodiments as long as it can generate light or control the amount of light according to an electrical signal.

[0082] The light emitting element ED may include a first electrode (or anode) AE, a light emitting pattern EP, and a second electrode (or cathode) CE. The first electrode AE ​​may be disposed on the sixth insulating layer 60. The first electrode AE ​​may be a translucent electrode, a semi-translucent electrode, or a reflective electrode. The first electrode AE ​​may include a reflective layer formed of Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, or compounds thereof, and a transparent or semi-transparent electrode layer formed on the reflective layer. The transparent or semi-transparent electrode layer may have a material selected from indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium zinc oxide (IGZO), zinc oxide (ZnO), indium oxide (In 2 O 3 ) and one or more substances in the group of aluminum-doped zinc oxide (AZO). For example, the first electrode AE ​​may include a stacked structure of ITO / Ag / ITO.

[0083] The pixel definition film PDL may be disposed on the sixth insulating layer 60. According to an embodiment, the pixel definition film PDL may have a property of absorbing light, for example, the pixel definition film PDL may have a black color. The pixel definition film PDL may include a black coloring agent. The black coloring agent may include a black dye, a black pigment, etc. The black coloring agent may include carbon black, a metal such as chromium, or an oxide thereof. The pixel definition film PDL may be equivalent to a light shielding pattern having a light shielding property.

[0084] The pixel definition film PDL may cover a portion of the first electrode AE. For example, an opening PDL-OP exposing a portion of the first electrode AE ​​may be defined in the pixel definition film PDL. The opening PDL-OP of the pixel definition film PDL may define the light emitting area LA.

[0085] A hole control layer may be further configured between the first electrode AE ​​and the light emitting pattern EP. The hole control layer may include a hole transport layer and / or a hole injection layer. An electron control layer may be further configured between the light emitting pattern EP and the second electrode CE. The electron control layer may include an electron transport layer and / or an electron injection layer.

[0086] The light emitting element layer 130 may further include a capping layer. The capping layer may be disposed on the light emitting element ED, covering the second electrode CE of the light emitting element ED. The capping layer may include an organic substance. The capping layer may be formed of a single layer or multiple layers. The capping layer may fully protect the cathode CE and the light emitting pattern EP at the lower portion from the penetration or contamination of external moisture, thereby providing a light emitting element ED with an improved lifespan.

[0087] The thin film encapsulation layer 140 may be disposed on the light emitting element layer 130. The thin film encapsulation layer 140 may protect the light emitting element layer 130 from moisture, oxygen, and foreign substances such as dust particles. The thin film encapsulation layer 140 may include a first inorganic layer 141, an organic layer 142, and a second inorganic layer 143 stacked in sequence, but the layers constituting the thin film encapsulation layer 140 are not limited thereto.

[0088] The inorganic layers 141 and 143 can protect the light emitting element layer 130 from moisture and oxygen, and the organic layer 142 can protect the light emitting element layer 130 from foreign substances such as dust particles. The inorganic layers 141 and 143 may include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The organic layer 142 may include an acrylic organic layer, but is not limited thereto.

[0089] The input sensor layer ISL may be configured on the display layer DPL. The input sensor layer ISL may be referred to as a sensor layer, an input sensing layer, or an input sensing panel. The input sensor layer ISL may include a base insulating layer 200-IL1, a first conductive layer 200-CL1, a sensing insulating layer 200-IL2, a second conductive layer 200-CL2, and a cover layer 200-IL3.

[0090] The base insulating layer 200-IL1 may be directly disposed on the display layer DPL. The base insulating layer 200-IL1 may be an inorganic layer including at least one of silicon nitride, silicon oxynitride, and silicon oxide. Alternatively, the base insulating layer 200-IL1 may also be an organic layer including epoxy resin, acrylic resin, or imide resin. The base insulating layer 200-IL1 may have a single-layer structure or a multi-layer structure stacked along the third direction DR3.

[0091] The first conductive layer 200-CL1 and the second conductive layer 200-CL2 may have a single layer structure or a multi-layer structure stacked along the third direction DR3, respectively. The first conductive layer 200-CL1 and the second conductive layer 200-CL2 may include a sensing pattern or a bridge pattern of a mesh structure, respectively.

[0092] The conductive layers 200-CL1 and 200-CL2 of the single-layer structure may include a metal layer or a transparent conductive layer. The metal layer may include molybdenum, silver, titanium, copper, aluminum or an alloy thereof. The transparent conductive layer may include a transparent conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO) or indium zinc tin oxide (IZTO). In addition, the transparent conductive layer may include a conductive polymer such as PEDOT, a metal nanowire, graphene, etc.

[0093] The conductive layers 200-CL1 and 200-CL2 of the multi-layer structure may include multiple metal layers and multiple transparent conductive layers. The multiple metal layers may have a three-layer structure of titanium / aluminum / titanium, for example. The conductive layers 200-CL1 and 200-CL2 of the multi-layer structure may include at least one metal layer and at least one transparent conductive layer.

[0094] The sensing insulating layer 200-IL2 may be disposed between the first conductive layer 200-CL1 and the second conductive layer 200-CL2. The covering layer 200-IL3 may be disposed on the sensing insulating layer 200-IL2 and cover the second conductive layer 200-CL2. The covering layer 200-IL3 may reduce or eliminate the probability of damage that may occur in the second conductive layer 200-CL2 in subsequent processes. In one embodiment of the present invention, the input sensor layer ISL may not include the covering layer 200-IL3.

[0095] The sensing insulating layer 200 - IL2 and the capping layer 200 - IL3 may include an inorganic film, and the inorganic film may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon nitride, silicon oxynitride, zirconium oxide, and hafnium oxide.

[0096] Alternatively, the sensing insulating layer 200-IL2 and the cover layer 200-IL3 may include an organic film, which may include at least one of epoxy resin, urethane resin, cellulose resin, siloxane resin, polyimide resin, polyamide resin, and perylene resin.

[0097] Figure 3 FIG. 2 is a cross-sectional view of a display device DD according to an embodiment of the present invention. Figure 3 When, refer to Figure 2a and Figure 2b The descriptions for the same symbols are omitted. Figure 3 In order to facilitate the description, the window portion WM is omitted (see Figure 2a ) of the display device DD. Figure 3The description of each of the first light emitting element ED1 to the third light emitting element ED3 can be the same as that of Figure 2b The description of the light-emitting element ED is substantially the same.

[0098] Reference Figure 3 , the display panel DP may include first to third light emitting elements ED1 to ED3. The first light emitting element ED1 may include a first anode AE1, a first light emitting pattern EP1, and a portion of a cathode CE. The second light emitting element ED2 may include a second anode AE2, a second light emitting pattern EP2, and a portion of a cathode CE. The third light emitting element ED3 may include a third anode AE3, a third light emitting pattern EP3, and a portion of a cathode CE.

[0099] The first anode AE1 to the third anode AE3 may be provided in a plurality of patterns. The first light emitting opening OP1-E to the third light emitting opening OP3-E may be defined in the pixel definition film PDL. The first light emitting opening OP1-E may expose at least a portion of the first anode AE1. The second light emitting opening OP2-E may expose at least a portion of the second anode AE2. The third light emitting opening OP3-E may expose at least a portion of the third anode AE3.

[0100] The first to third light emitting patterns EP1 to EP3 may be arranged on the first to third anodes AE1 to AE3 and the pixel definition film PDL. The first to third light emitting patterns EP1 to EP3 may be arranged in the first to third light emitting openings OP1-E to OP3-E. The first light emitting pattern EP1 may be arranged in the first light emitting opening OP1-E, the second light emitting pattern EP2 may be arranged in the second light emitting opening OP2-E, and the third light emitting pattern EP3 may be arranged in the third light emitting opening OP3-E. The cathode CE may be arranged on the first to third light emitting patterns EP1 to EP3 and the pixel definition film PDL.

[0101] exist Figure 2b and Figure 3 The first to third light emitting patterns EP1 to EP3 are exemplarily shown as being arranged on the first to third anodes AE1 to AE3 and the pixel definition film PDL, but the present invention is not limited thereto. For example, the first to third light emitting patterns EP1 to EP3 may be arranged only on the first to third anodes AE1 to AE3.

[0102] The first to third light emitting patterns EP1 to EP3 may provide different colors from each other. For example, the first light emitting pattern EP1 may provide red light, the second light emitting pattern EP2 may provide green light, and the third light emitting pattern EP3 may provide blue light.

[0103] The anti-reflection layer ARL may include a light blocking pattern BM, a color filter CF, and an overcoat layer OC.

[0104] The light shielding pattern BM may be disposed on the input sensor layer ISL. The light shielding pattern BM is a layer having a black color. In one embodiment, the light shielding pattern BM may include a black coloring agent. The black coloring agent may include a black dye, a black pigment, etc. The black coloring agent may include carbon black, a metal such as chromium, or an oxide thereof. However, this is an example, and the material constituting the light shielding pattern BM is not particularly limited as long as it is a material that can absorb light.

[0105] The light shielding pattern BM can prevent the first conductive layer 200-CL1 (refer to Figure 2b ) and the second conductive layer 200-CL2 (refer to Figure 2b ) caused by external light reflection. The light shielding pattern BM may be configured to overlap with the pixel definition film PDL. A first opening BM-OP1 to a third opening BM-OP3 may be defined in the light shielding pattern BM. The first opening BM-OP1 to the third opening BM-OP3 of the light shielding pattern BM may overlap with the first light emitting opening portion OP1-E to the third light emitting opening portion OP3-E of the pixel definition film PDL. The first opening BM-OP1 may overlap with the first light emitting opening portion OP1-E, the second opening BM-OP2 may overlap with the second light emitting opening portion OP2-E, and the third opening BM-OP3 may overlap with the third light emitting opening portion OP3-E.

[0106] The first opening BM-OP1, the second opening BM-OP2, and the third opening BM-OP3 of the light shielding pattern BM may define a first pixel region PXA-R, a second pixel region PXA-G, and a third pixel region PXA-B. The first pixel region PXA-R, the second pixel region PXA-G, and the third pixel region PXA-B may be defined as regions for emitting light generated by the first light emitting element ED1, the second light emitting element ED2, and the third light emitting element ED3 to the outside, respectively.

[0107] The color filter CF may include a first color filter CF1 and a second color filter CF2. The first color filter CF1 and the second color filter CF2 may transmit light generated by the first light emitting element ED1 to the third light emitting element ED3 corresponding to the first light emitting element ED1 to the third light emitting element ED3, and block light of a partial band among the external light. The first color filter CF1 may transmit light of a first color, and the second color filter CF2 may transmit light of a second color and light of a third color. The second color may be different from the first color, and the third color may be different from the first color and the second color. For example, the first color may be red, the second color may be green, and the third color may be blue. The first color filter CF1 and the second color filter CF2 may reduce external light reflection caused by the first anode AE1 to the third anode AE3 or the cathode CE.

[0108] The first color filter CF1 and the second color filter CF2 may overlap at least the first pixel region PXA-R, the second pixel region PXA-G, and the third pixel region PXA-B. In detail, the first color filter CF1 may overlap the first light-emitting element ED1, and the second color filter CF2 may overlap the second light-emitting element ED2 and the third light-emitting element ED3. A portion of the first color filter CF1 and the second color filter CF2 may also overlap the non-pixel region NPXA. That is, a portion of the first color filter CF1 and the second color filter CF2 may be disposed on the light-shielding pattern BM.

[0109] The second color filter CF2 may include a blue pigment. For example, the second color filter CF2 may include the following compound B1 as a blue pigment. However, this is merely an example, and the embodiment is not limited thereto.

[0110]

[0111] In addition, the second color filter CF2 may further include a green pigment. For example, the second color filter CF2 may include at least one of the following compounds G1, G2, and G3 as a green pigment. However, this is merely an example, and the embodiment is not limited thereto.

[0112]

[0113] In addition, the second color filter CF2 may further include at least one of a cyan pigment and a yellow pigment. For example, the second color filter CF2 may include at least one of the following compounds V1, Y1, Y2, and Y3. However, this is merely an example, and the embodiment is not limited thereto.

[0114]

[0115] The second color filter CF2 may include at least one of a blue pigment, a green pigment, a cyan pigment, and a yellow pigment. For example, the second color filter CF2 may include a compound B1 as a blue pigment, and may include at least one of compounds G1, G2, G3, V1, Y1, Y2, and Y3. The second color filter CF2 may adjust the thickness of the second color filter CF2, the composition ratio of the pigment included in the second color filter CF2, and the concentration of the pigment, thereby adjusting the transmittance of the second color filter CF2 by wavelength.

[0116] The second color filter CF2 may include a first sub-color filter SCF1 and a second sub-color filter SCF2. The first sub-color filter SCF1 and the second sub-color filter SCF2 may be configured to be spaced apart from each other. The first sub-color filter SCF1 may overlap with the second light-emitting element ED2, and the second sub-color filter SCF2 may overlap with the third light-emitting element ED3. The first sub-color filter SCF1 and the second sub-color filter SCF2 may include the same material and be formed by the same process. For example, the first sub-color filter SCF1 and the second sub-color filter SCF2 may be patterned using the same mask. Therefore, the number of masks required to form the display device DD may be reduced, and the efficiency of the display device manufacturing process may be improved.

[0117] The overcoat layer OC may cover the light blocking pattern BM, the first color filter CF1, and the second color filter CF2. The overcoat layer OC may include an organic substance and may provide a flat upper surface.

[0118] Figure 4 FIG. 1 is a cross-sectional view of a display device DDa according to an embodiment of the present invention. Figure 4 In order to facilitate the description, the window portion WM is omitted (see Figure 2a ) of the display device DDa. Figure 4 When, refer to Figure 3 The following description will be given, and descriptions of the same symbols will be omitted.

[0119] Reference Figure 4 , the display device DDa may include a display layer DPL, an input sensor layer ISL, and an anti-reflection layer ARLa. The anti-reflection layer ARLa may include a light shielding pattern BM, a color filter CFa, and an overcoat layer OC.

[0120] The color filter CFa may include a first color filter CF1a and a second color filter CF2a. The first color filter CF1a and the second color filter CF2a may transmit light generated by the first light emitting element ED1 to the third light emitting element ED3 corresponding to the first light emitting element ED1 to the third light emitting element ED3, and block light of a partial band among the external light. The first color filter CF1a may transmit light of a first color, and the second color filter CF2a may transmit light of a second color and light of a third color. The second color may be different from the first color, and the third color may be different from the first color and the second color. The first color may be red, the second color may be green, and the third color may be blue. The first color filter CF1a and the second color filter CF2a may reduce external light reflection caused by the first anode AE1 to the third anode AE3 or the cathode CE.

[0121] The first color filter CF1a and the second color filter CF2a may overlap at least the first pixel region PXA-R, the second pixel region PXA-G, and the third pixel region PXA-B. In detail, the first color filter CF1a may overlap the first light-emitting element ED1, and the second color filter CF2a may overlap the second light-emitting element ED2 and the third light-emitting element ED3. A portion of the first color filter CF1a and the second color filter CF2a may also overlap the non-pixel region NPXA. That is, a portion of the first color filter CF1a and the second color filter CF2a may be arranged on the light-shielding pattern BM.

[0122] The second color filter CF2a may include a blue pigment. For example, the second color filter CF2a may include the following compound B1 as a blue pigment. However, this is merely an example, and the embodiment is not limited thereto.

[0123]

[0124] In addition, the second color filter CF2a may further include a green pigment. For example, the second color filter CF2a may include at least one of the following compounds G1, G2, and G3 as a green pigment.

[0125] However, this is merely an example, and the embodiment is not limited thereto.

[0126]

[0127] In addition, the second color filter CF2a may further include at least one of a cyan pigment and a yellow pigment. For example, the second color filter CF2a may include at least one of the following compounds V1, Y1, Y2, and Y3. However, this is merely an example, and the embodiment is not limited thereto.

[0128]

[0129] The second color filter CF2a may include at least one of a blue pigment, a green pigment, a cyan pigment, and a yellow pigment. For example, the second color filter CF2a may include a compound B1 as a blue pigment, and may include at least one of compounds G1, G2, G3, V1, Y1, Y2, and Y3. The second color filter CF2a may adjust the thickness of the second color filter CF2a, the composition ratio of the pigment included in the second color filter CF2a, and the concentration of the pigment, thereby adjusting the transmittance of the second color filter CF2a by wavelength.

[0130] The second color filter CF2a may include a first sub-color filter SCF1a and a second sub-color filter SCF2a. The first sub-color filter SCF1a and the second sub-color filter SCF2a may be configured to be spaced apart from each other. The first sub-color filter SCF1a may overlap with the second light-emitting element ED2, and the second sub-color filter SCF2a may overlap with the third light-emitting element ED3. The first sub-color filter SCF1a and the second sub-color filter SCF2a may include the same material and be formed by the same process.

[0131] The first sub-color filter SCF1a may have a first thickness T1, and the second sub-color filter SCF2a may have a second thickness T2. The first thickness T1 and the second thickness T2 may be different from each other. The first sub-color filter SCF1a and the second sub-color filter SCF2a may be patterned using the same mask, but the first sub-color filter SCF1a and the second sub-color filter SCF2a having different thicknesses may be patterned using a halftone mask or a slit.

[0132] In detail, the second color filter CF2a can be exposed in a state where the mask is aligned. A portion of the second color filter CF2a exposed to light in the exposure process can be cured, and a portion of the second color filter CF2a not exposed to light can be removed. A portion of the cured second color filter CF2a can become the first sub-color filter SCF1a and the second sub-color filter SCF2a, and the removed portion of the second color filter CF2a can overlap with the shading pattern BM. In addition, in the exposure process, a half-tone mask or a slit can be used to pattern the first sub-color filter SCF1a and the second sub-color filter SCF2a with different thicknesses. The half-tone mask or the slit can have the characteristic of blocking only a portion of the light. Therefore, at least a portion of the second color filter CF2a overlapping with the area where only a portion of the light is blocked can be removed, and the thickness of the second color filter CF2a overlapping with the area where only a portion of the light is blocked can be less than the thickness of the second color filter CF2a overlapping with the area where all the light is transmitted.

[0133] The second thickness T2 may be greater than the first thickness T1. The portion of the second color filter CF2a that overlaps with the area where only a portion of the light is blocked may be the first sub-color filter SCF1a. Since the second thickness T2 of the second sub-color filter SCF2a is greater than the first thickness T1 of the first sub-color filter SCF1a, the transmittance of the second color of the second light-emitting area PXA-G overlapping with the first sub-color filter SCF1a may be increased, and the reflectivity of the third light-emitting area PXA-B overlapping with the second sub-color filter SCF2a may be reduced. For example, since the second thickness T2 of the second sub-color filter SCF2a is greater than the first thickness T1 of the first sub-color filter SCF1a, the transmittance of the second light-emitting area PXA-G in the wavelength band near 530nm corresponding to green may be increased, and the reflectivity of the third light-emitting area PXA-B that allows blue to pass may be reduced. That is, by adjusting the thickness of the first sub-color filter SCF1a and the second sub-color filter SCF2a, it is possible to achieve the same effect as with a constant thickness. Figure 3 The reflectivity is further reduced compared to the first sub-color filter SCF1 and the second sub-color filter SCF2. Therefore, the quality of the display device DDa can be improved.

[0134] Figure 5 FIG. 1 is a cross-sectional view of a display device DDb according to an embodiment of the present invention. Figure 5 In order to facilitate the description, the window portion WM is omitted (see Figure 2a ) of the display device DDb. Figure 5 When, refer to Figure 3 The following description will be given, and descriptions of the same symbols will be omitted.

[0135] Reference Figure 5 , the display device DDb may include a display layer DPL, an input sensor layer ISL, and an anti-reflection layer ARLb. The anti-reflection layer ARLb may include a color filter CFb and an overcoat layer OC.

[0136] The color filter CFb may include a first color filter CF1b and a second color filter CF2b. The first color filter CF1b and the second color filter CF2b may transmit light generated by the first light emitting element ED1 to the third light emitting element ED3 corresponding to the first light emitting element ED1 to the third light emitting element ED3, and block light of a partial band among the external light. The first color filter CF1b may transmit light of a first color, and the second color filter CF2b may transmit light of a second color and light of a third color. The second color may be different from the first color, and the third color may be different from the first color and the second color. The first color may be red, the second color may be green, and the third color may be blue. The first color filter CF1b and the second color filter CF2b may reduce external light reflection caused by the first anode AE1 to the third anode AE3 or the cathode CE.

[0137] The second color filter CF2b may include a blue pigment. For example, the second color filter CF2b may include the following compound B1 as a blue pigment. However, this is merely an example, and the embodiment is not limited thereto.

[0138]

[0139] In addition, the second color filter CF2b may further include a green pigment. For example, the second color filter CF2b may include at least one of the following compounds G1, G2, and G3 as a green pigment.

[0140] However, this is merely an example, and the embodiment is not limited thereto.

[0141]

[0142] In addition, the second color filter CF2b may further include at least one of a cyan pigment and a yellow pigment. For example, the second color filter CF2b may include at least one of the following compounds V1, Y1, Y2, and Y3. However, this is merely an example, and the embodiment is not limited thereto.

[0143]

[0144] The second color filter CF2b may include at least one of a blue pigment, a green pigment, a cyan pigment, and a yellow pigment. For example, the second color filter CF2b may include a compound B1 as a blue pigment, and may include at least one of compounds G1, G2, G3, V1, Y1, Y2, and Y3. The second color filter CF2b may adjust the thickness of the second color filter CF2b, the composition ratio of the pigment included in the second color filter CF2b, and the concentration of the pigment, thereby adjusting the transmittance of the second color filter CF2b by wavelength.

[0145] The area overlapping with one color filter (e.g., the first color filter CF1b or the second color filter CF2b) may be defined as pixel areas PXA-Ra, PXA-Ga, PXA-Ba, and the area overlapping with multiple color filters (e.g., the first color filter CF1b and the second color filter CF2b) may be defined as a non-pixel area NPXA. For example, the area overlapping with the first color filter CF1b may be defined as a first pixel area PXA-Ra, and the area overlapping with the second color filter CF2b may be defined as a second pixel area PXA-Ga and a third pixel area PXA-Ba. In addition, the area overlapping with the first color filter CF1b and the second color filter CF2b may be defined as a non-pixel area NPXA.

[0146] The first color filter CF1b can overlap with the first light-emitting element ED1 and the pixel definition film PDL, and the second color filter CF2b can overlap with the second light-emitting element ED2, the third light-emitting element ED3, and the pixel definition film PDL. That is, a portion of the first color filter CF1b and a portion of the second color filter CF2b can overlap in the area where the pixel definition film PDL is configured. The area where the first color filter CF1b and the second color filter CF2b are overlapped will not allow light to pass through. By overlapping the first color filter CF1b and the second color filter CF2b, the light shielding pattern BM (see Figure 3 ), thereby omitting the step of forming the light shielding pattern BM. By reducing the number of masks required to form the display device DDb, the efficiency of the display device manufacturing process can be improved.

[0147] Figure 6 : is a cross-sectional view of a display device DD-1 according to a comparative example of the present invention. Figure 6 In order to facilitate the description, the window portion WM is omitted (see Figure 2a ) of the display device DD-1. Figure 6 When, refer to Figure 3 The following description will be given, and descriptions of the same symbols will be omitted.

[0148] Reference Figure 6 , the display device DD-1 may include a display layer DPL, an input sensor layer ISL, and an anti-reflection layer ARL-1. The anti-reflection layer ARL-1 may be configured on the input sensor layer ISL. The anti-reflection layer ARL-1 may be an optical component that can reduce the reflectivity of light incident from the outside. The anti-reflection layer ARL-1 may include a phase retarder and / or a polarizer. The anti-reflection layer ARL-1 may include at least a polarizing film. In this case, the anti-reflection layer ARL-1 may be attached to the display panel DP via an adhesive layer AL. The adhesive layer AL may be an optically transparent adhesive component (OCA, Optically Clear Adhesive) or a pressure-sensitive adhesive film (PSA, Pressure Sensitive Adhesive film), but is not particularly limited thereto.

[0149] Figure 7 2 is a cross-sectional view of a display device DD-2 according to a comparative example of the present invention. Figure 7 In order to facilitate the description, the window portion WM is omitted (see Figure 2a ) of the display device DD-2. Figure 7 When, refer to Figure 3 The following description will be given, and descriptions of the same symbols will be omitted.

[0150] Reference Figure 7 The display device DD-2 may include a display layer DPL, an input sensor layer ISL, and an anti-reflection layer ARL-2. The anti-reflection layer ARL-2 may include a light shielding pattern BM, a plurality of color filters CF-R, CF-G, CF-B, and an overcoat layer OC.

[0151] A plurality of color filters CF-R, CF-G, CF-B may include a red color filter CF-R, a green color filter CF-G, and a blue color filter CF-B. The red color filter CF-R, the green color filter CF-G, and the blue color filter CF-B may be configured on the input sensor layer ISL and the light shielding pattern BM. The red color filter CF-R may be configured to overlap with the first light-emitting element ED1, so that the light of the first color generated by the first light-emitting element ED1 is transmitted. The green color filter CF-G may be configured to overlap with the second light-emitting element ED2, so that the light of the second color generated by the second light-emitting element ED2 is transmitted. The blue color filter CF-B may be configured to overlap with the third light-emitting element ED3, so that the light of the third color generated by the third light-emitting element ED3 is transmitted. The second color may be different from the first color, and the third color may be different from the first color and the second color.

[0152] Figure 8 Yes means Figure 3 The wavelength transmittance curve G_BG of the second color filter CF2 and Figure 7 Graphs showing wavelength-dependent transmittance curves G_R, G_G, and G_B of the red filter CF-R, the green filter CF-G, and the blue filter CF-B.

[0153] Reference Figure 3 , Figure 7 and Figure 8 , the horizontal axis represents wavelength (nm), and the vertical axis represents transmittance. For the sake of convenience, the transmittance curves G_R, G_G, G_B, and G_BG according to the wavelength are respectively referred to as the first curve G_R, the second curve G_G, the third curve G_B, and the fourth curve G_BG.

[0154] The first curve G_R represents Figure 7 The second curve G_G represents the transmittance of the red color filter CF-R. Figure 7 The third curve G_B represents the transmittance of the green filter CF-G. Figure 7 The transmittance of the blue color filter CF-B. Figure 7 The display device DD-2 is equivalent to the comparative example of the present invention. The fourth curve G_BG represents Figure 3 The transmittance of the second color filter CF2. Figure 3 The display device DD is equivalent to an embodiment of the present invention.

[0155] The second color filter CF2 is obtained by adjusting the thickness of the blue color filter CF-B, the concentration of the pigment, or the combination of the pigments. The fourth curve G_BG can improve the transmittance compared with the third curve G_B. In particular, the transmittance near 530nm corresponding to green can be improved. Therefore, the second color filter CF2 can make both blue and green pass through. As a result, the second light emitting area PXA-G (refer to Figure 3 ) and the third light emitting region PXA-B (refer to Figure 3 ) Using the same mask to pattern a second color filter CF2, the number of masks required to form the display device DD can be reduced, and the efficiency of the display device manufacturing process can be improved. In addition, the display device DD including the second color filter CF2 can have improved luminous efficiency compared to the display device DD-1 including the polarizing film.

[0156] The above description is made with reference to the preferred embodiments of the present invention, but a person skilled in the art or a person of ordinary skill in the art should be able to understand that various modifications and changes can be made to the present invention without exceeding the scope of the concept and technical field of the present invention as described in the claims. Therefore, the technical scope of the present invention is not limited to the contents described in the detailed description of the specification, but should be determined only by the claims.

Claims

1. A display device, It is characterized in that include: The display panel includes a pixel definition film defining a first light emitting opening, a second light emitting opening, and a third light emitting opening, and a first light emitting element, a second light emitting element, and a third light emitting element disposed in the first light emitting opening to the third light emitting opening and providing light of different colors from each other; as well as The anti-reflection layer is disposed on the display panel and includes a first color filter and a second color filter. The first color filter overlaps with the first light emitting element, and the second color filter overlaps with the second light emitting element and the third light emitting element.

2. The display device according to claim 1, It is characterized in that The first color filter transmits light of a first color, and the second color filter transmits light of a second color and a third color different from the first color.

3. The display device according to claim 1, It is characterized in that The anti-reflection layer further includes an outer coating layer covering the first color filter and the second color filter.

4. The display device according to claim 1, It is characterized in that The second color filter includes: a first sub-color filter overlapping the second light emitting element; and a second sub-color filter overlapping the third light emitting element.

5. The display device according to claim 4, It is characterized in that The first sub-color filter and the second sub-color filter are configured to be spaced apart from each other.

6. The display device according to claim 4, It is characterized in that The first sub-color filter and the second sub-color filter are formed through the same process.

7. The display device according to claim 4, It is characterized in that The anti-reflection layer further includes a light shielding pattern configured to overlap with the pixel definition film.

8. The display device according to claim 4, It is characterized in that The first sub-color filter has a first thickness, and the second sub-color filter has a second thickness greater than the first thickness.

9. The display device according to claim 1, It is characterized in that The first color filter overlaps with the first light emitting element and the pixel definition film, and the second color filter overlaps with the second light emitting element, the third light emitting element, and the pixel definition film.

10. The display device according to claim 1, It is characterized in that A portion of the first color filter and a portion of the second color filter overlap in a region where the pixel definition film is arranged.

Images