Display device

Abstract

A display device includes: a base layer including a light emitting region and a non-light emitting region adjacent to the light emitting region; a display element layer disposed on the base layer and including a light emitting element corresponding to the light emitting region; and a color filter disposed on the display element layer and including a colorant. The color filter includes: a first portion overlapping the light emitting region; and a second portion surrounding the first portion, and a first weight percentage of the colorant included in the first portion relative to a total weight of the first portion is less than a second weight percentage of the colorant included in the second portion relative to a total weight of the second portion.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and all benefits derived from Korean Patent Application No. 10-2023-0130126, filed on September 27, 2023, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] The present disclosure relates to a display device, and more particularly, to a display device having improved display efficiency. Background Art

[0004] Various display devices used in multimedia devices such as televisions, mobile phones, tablet computers, and game consoles are being developed. The display device may include various optical functional layers in order to provide users with high-quality color images.

[0005] Research on thin display devices is ongoing to realize various forms of display devices such as display devices having a curved surface, a rollable display device, or a foldable display device. A thin display device can be realized by reducing the number of optical functional layers and including optical functional layers having various functions. Summary of the invention

[0006] The present disclosure provides a display device having improved display quality due to reduced external light reflection and reduced color deviation according to viewing angles.

[0007] An embodiment of the inventive concept provides a display device, the display device comprising: a base layer including a light-emitting region and a non-light-emitting region adjacent to the light-emitting region; a display element layer disposed on the base layer and including a light-emitting element corresponding to the light-emitting region; and a color filter disposed on the display element layer and including a colorant. The color filter comprises: a first portion overlapping the light-emitting region; and a second portion surrounding the first portion, and a first weight percentage of the colorant included in the first portion relative to the total weight of the first portion is less than a second weight percentage of the colorant included in the second portion relative to the total weight of the second portion.

[0008] In embodiments, the colorant may include a dye or a pigment.

[0009] In an embodiment, the second portion may overlap the light emitting area and the non-light emitting area.

[0010] In an embodiment, the light emitting element may emit source light and the color filter may absorb at least a portion of the source light.

[0011] In an embodiment, a first light transmittance of the first portion may be higher than a second light transmittance of the second portion with respect to the source light.

[0012] In an embodiment, the second light transmittance may be about eighty-two percent (82%) to about 90% of the first light transmittance.

[0013] In an embodiment, the display device may further include a partitioning pattern opposite to the color filter and overlapping the non-luminescent area on the display element layer, and a transmittance of the partitioning pattern relative to the source light may be lower than the second transmittance.

[0014] In an embodiment, the absorptivity of the first portion with respect to the source light may be lower than the absorptivity of the second portion with respect to the source light.

[0015] In an embodiment, in a plan view, a virtual center line may be defined in the light emitting region, and the first portion may be defined as a portion adjacent to the center line.

[0016] In an embodiment, the light emitting element may emit source light, and transmittance of the color filter with respect to the source light may become lower in a direction away from a center line in a plan view.

[0017] In an embodiment, the light emitting area may have a first width in the first direction from the center line, the first portion may have a second width in the first direction from the center line to correspond to the light emitting area, and a ratio of the second width to the first width may be approximately 0.4 to approximately 0.6.

[0018] In an embodiment, the first width may be about 6 micrometers (μm) to about 20 μm, and the second width may be about 3 μm to about 10 μm.

[0019] In an embodiment, the display device may further include a protection layer covering the color filter and overlapping the entirety of the light emitting area and the non-light emitting area.

[0020] In an embodiment of the present invention, a display device includes: a base layer including a first light-emitting region, a second light-emitting region, a third light-emitting region, and a non-light-emitting region defined between the first light-emitting region and the third light-emitting region, which are spaced apart from each other in a plan view; a display element layer, which is disposed on the base layer and includes first to third light-emitting elements corresponding to the first to third light-emitting regions, respectively; and a color filter layer, which is disposed on the display element layer. The color filter layer includes a first filter component overlapping with the first light-emitting region and including a first colorant, a second filter component overlapping with the second light-emitting region and including a second colorant, and a third filter component overlapping with the third light-emitting region. The first filter component includes: a first portion having a first colorant of a first concentration; and a second portion having a first colorant of a second concentration, and the first concentration is lower than the second concentration.

[0021] In an embodiment, the concentration of the second colorant in the second filter means may be substantially uniform in the second light emitting region.

[0022] In an embodiment, the first to third light emitting elements may emit first to third lights, respectively, and a transmittance of the first portion with respect to the first light may be higher than a transmittance of the second portion with respect to the first light.

[0023] In an embodiment, the first light may be red light, the second light may be green light, and the third light may be blue light.

[0024] In an embodiment, in the second light emitting region, transmittances of the second filter parts with respect to the second light may be substantially the same, and in the third light emitting region, transmittances of the third filter parts with respect to the third light may be substantially the same.

[0025] In an embodiment, the color filter layer may further include a partition pattern overlapping the non-light emitting area.

[0026] In an embodiment, each of the first to third filter components may extend to the non-light emitting region, and the partition pattern may have a structure in which at least a portion of the first to third filter components are stacked. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are included to provide a further understanding of the inventive concept and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate embodiments of the inventive concept and together with the description are used to explain the principles of the inventive concept. In the drawings:

[0028] Figure 1 is a perspective view of an embodiment of a display device according to the inventive concept;

[0029] Figure 2is a cross-sectional view of an embodiment of a display device according to the inventive concept;

[0030] Figure 3 is an enlarged plan view of an embodiment of a portion of a display module according to the inventive concept;

[0031] Figure 4A is a cross-sectional view of an embodiment of a display device according to the inventive concept;

[0032] Figure 4B is a cross-sectional view of a display device according to the present invention;

[0033] Figure 5 is an enlarged cross-sectional view of a portion of a display device according to the present invention;

[0034] Figure 6 is a plan view showing some components of a display device according to the inventive concept;

[0035] Fig. 7A is a graph showing an embodiment of color coordinates versus viewing angle; and

[0036] Figure 7B is a graph showing a comparative example of color coordinates versus viewing angle. DETAILED DESCRIPTION

[0037] Hereinafter, embodiments of the inventive concept will be described with reference to the accompanying drawings.

[0038] In this specification, when an element (or region, layer, and part) is referred to as being "on", "connected to" or "coupled to" another element, the element may be directly on, connected to or coupled to the other element, or an intervening element may be disposed between the element and the other element.

[0039] The same reference numerals or symbols always refer to the same elements. In addition, in the drawings, the thickness, ratio and size of the elements are exaggerated for the effective description of the technical content. The term "and / or" includes all of one or more combinations that the associated elements can define.

[0040] Although the terms first and second, etc. can be used to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present invention, the first element can be referred to as the second element, and similarly, the second element can also be referred to as the first element. Unless the context clearly indicates otherwise, the singular form also includes the plural form.

[0041] In addition, terms such as "below", "lower", "above", and "upper" are used to describe the relationship between elements shown in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0042] It will be understood that when used herein, terms such as “include” or “have” are intended to specify the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

[0043] As used herein, "directly disposed" may mean that no intervening layer, film, region, or plate is attached between one portion of a layer, film, region, or plate and another portion thereof. For example, "directly disposed" may mean that two layers or two components are disposed without using an additional component (such as an adhesive component) between the two layers or two components.

[0044] As used herein, "about" or "approximately" includes the stated value and means within an acceptable range of deviation of the particular value as determined by one of ordinary skill in the art, taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, the term "about" can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, or ±5% of the stated value.

[0045] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those commonly understood by those skilled in the art. In addition, unless explicitly defined as such herein, terms (such as those defined in general dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and will not be interpreted in an overly idealized or overly formalistic sense.

[0046] Hereinafter, a display device in an embodiment of the inventive concept will be described with reference to the accompanying drawings.

[0047] Figure 1 is a perspective view of an embodiment of a display device according to the inventive concept. Figure 1 The portable electronic device in the embodiment of the display device DD is shown. However, the display device DD can be used in large electronic devices such as televisions, monitors, or outdoor billboards, as well as small or medium-sized electronic devices such as personal computers (“PCs”) (e.g., laptop computers, tablet personal computers), personal digital assistants, car navigation units, game consoles, smart phones, and cameras. In addition, these are presented only as illustrative embodiments, and thus the display device DD can also be used in other electronic devices without departing from the scope of the inventive concept.

[0048] The display device DD may have a hexahedral form having a thickness in a third direction DR3 on a plane defined by a first direction DR1 and a second direction DR2 that intersect each other. However, this is shown as one of a plurality of embodiments, and the display device DD may have various forms, and the inventive concept is not limited thereto. As used herein, the term "in a plan view" may be defined as being observed in the third direction DR3. As used herein, the term "in a cross section" may be defined as being observed in the first direction DR1 or the second direction DR2. The directions indicated by the first direction DR1, the second direction DR2, and the third direction DR3 may have a relative concept, and thus may be changed to other directions.

[0049] In an embodiment, the upper surface (or front surface) and the lower surface (or rear surface) of each member are defined based on the direction of displaying the image IM. The upper surface and the lower surface may face away from each other in the third direction DR3, and the normal direction of each of the upper surface and the lower surface may be parallel to the third direction DR3.

[0050] The display device DD can display an image IM through a display surface IS. The display surface IS includes a display area DA that displays the image IM, and a non-display area NDA adjacent to the display area DA. The non-display area NDA is an area in which no image is displayed. The image IM may be a dynamic image or a static image. Figure 1 A plurality of application icons and a clock are shown as embodiments of the image IM.

[0051] The display area DA may have a quadrilateral shape. The non-display area NDA may surround the display area DA. However, this is an illustrative embodiment, and the inventive concept is not limited thereto. Therefore, the shape of the display area DA and the shape of the non-display area NDA may be relatively designed. In addition, the non-display area NDA may not be on the front surface of the display device DD.

[0052] The display device DD may be flexible. This may mean a bendable property, and the display device DD may be a display device including any one of a fully foldable structure and a structure bendable to a few nanometers level. In an embodiment, for example, the display device DD may be a curved display device or a foldable display device. However, the inventive concept is not limited thereto, and the display device DD may be rigid.

[0053] Figure 2 is a cross-sectional view of an embodiment of a display device according to the inventive concept.

[0054] The display device DD may include a display module DM and a window WM. The display module DM may include a display panel DP, a sensor layer TU, and an optical layer OPL stacked sequentially. However, components of the display device DD are not limited thereto, and the display device DD may not include the optical layer OPL or the window WM.

[0055] The display panel DP may include a plurality of pixels in an area corresponding to the display device DD. The plurality of pixels may correspond to the plurality of light emitting areas PXA-R, PXA-G, and PXA-B (refer to Figure 3 ). A plurality of pixels may display light in response to an electrical signal. The display panel DP may be a self-luminous display panel. In an embodiment, for example, the display panel DP may be a micro light emitting diode (“micro LED”) display panel, a nano LED display panel, an organic light emitting display panel, or a quantum dot light emitting display panel. However, these are merely illustrative embodiments, and the inventive concept is not limited thereto, as long as the display panel DP is a self-luminous display panel.

[0056] The light-emitting layer of the organic light-emitting display panel may include an organic light-emitting material. The light-emitting layer of the quantum dot light-emitting display panel may include quantum dots and / or quantum rods, etc. The micro-LED display panel may include a micro-light-emitting diode element as an ultra-small light-emitting element, and the nano-LED display panel may include a nano-light-emitting diode element. Hereinafter, the display panel DP will be described as an organic light-emitting display panel.

[0057] The sensor layer TU can obtain information for generating an image on the display panel DP in response to an external input. The external input can be an input from a user. The user's input can include various forms of external input (such as a body part of the user, light, heat, pen, or pressure). The sensor layer TU can be disposed on the display panel DP. The sensor layer TU can be formed on the display panel DP by a continuous process. In this case, it can be mentioned that the sensor layer TU is directly disposed on the display panel DP. Directly disposed can mean that no intermediate element is disposed between the sensor layer TU and the display panel DP. That is, no additional adhesive member can be disposed between the sensor layer TU and the display panel DP. In an alternative embodiment, the sensor layer TU can be bonded to the display panel DP by an adhesive member. The adhesive member can include a typical adhesive or bonding agent.

[0058] The optical layer OPL may reduce the reflectivity of external light incident from outside the display device DD. The optical layer OPL may be an anti-reflection layer that reduces the reflectivity of external light incident from the outside. The optical layer OPL may be a layer that selectively transmits light emitted from the display panel DP. The optical layer OPL may not include a polarizing layer. Therefore, light that passes through the optical layer OPL and is incident on the display panel DP and the sensor layer TU may be unpolarized light. The optical layer OPL may be disposed on the sensor layer TU. The optical layer OPL may be directly disposed on the sensor layer TU. However, the inventive concept is not limited thereto, and an adhesive member may be disposed between the optical layer OPL and the sensor layer TU.

[0059] The window WM may include an optically transparent insulating material. In an embodiment, for example, the window WM may include glass or plastic. The window WM may have a multilayer structure or a single-layer structure. In an embodiment, for example, the window WM may include a plurality of plastic films bonded with an adhesive or a glass substrate and a plastic film bonded with an adhesive. The window WM may be disposed on the optical layer OPL. An adhesive member may be disposed between the optical layer OPL and the window WM, but the inventive concept is not limited thereto.

[0060] Figure 3 is an enlarged plan view of an embodiment of a portion of a display module according to the inventive concept.

[0061] refer to Figure 3 , the display module DM may include a plurality of pixels PXr, PXg, and PXb. The pixels PXr, PXg, and PXb may include a first pixel PXr, a second pixel PXg, and a third pixel PXb.

[0062] The first light emitting area (or red light emitting area) PXA-R can be defined in the first pixel PXr, the second light emitting area (or green light emitting area) PXA-G can be defined in the second pixel PXg, and the third light emitting area (or blue light emitting area) PXA-B can be defined in the third pixel PXb. Figure 3 The circular shapes shown in the figure may correspond to the shapes of the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B, respectively. However, the corresponding shapes of the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B are not limited thereto. In an embodiment, for example, the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B may have an elliptical shape in a plan view. In an alternative embodiment, the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B may have various shapes (such as a polygon (e.g., a quadrilateral or a triangle) or other arbitrary shapes) in a plan view.

[0063] In an embodiment of the present inventive concept, the first pixel PXr and the third pixel PXb may be alternately and repeatedly arranged in each of the first direction DR1 and the second direction DR2. The second pixel PXg may be arranged in a space between two first pixels PXr adjacent to each other in the oblique direction and two third pixels PXb adjacent to each other in the oblique direction. However, Figure 3 The arrangement relationship of the first pixel PXr, the second pixel PXg, and the third pixel PXb shown in is one of a plurality of embodiments, and the arrangement relationship of the first pixel PXr, the second pixel PXg, and the third pixel PXb is not particularly limited thereto. The oblique line direction may be a direction between the first direction DR1 and the second direction DR2, or a direction between the first direction DR1 and the second direction DR2 in a completely opposite direction.

[0064] Any one of the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B may emit a first light, and the other of the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B may emit a second light different from the first light, and the other of the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B may emit a third light different from the first light and the second light. In an embodiment, for example, the first light emitting region PXA-R may emit red light, the second light emitting region PXA-G may emit green light, and the third light emitting region PXA-B may emit blue light.

[0065] In an embodiment of the present inventive concept, the third light emitting region PXA-B may have the largest area, and the second light emitting region PXA-G may have the smallest area. However, the embodiments of the present inventive concept are not particularly limited thereto. The areas of the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B may be set according to the color of the emitted light. In an embodiment, for example, the areas of the first light emitting region PXA-R, the second light emitting region PXA-G, and the third light emitting region PXA-B may be the same, or may be different from the example shown.

[0066] The non-luminescent region NPXA may be disposed around the first luminescent region PXA-R, the second luminescent region PXA-G, and the third luminescent region PXA-B. The non-luminescent region NPXA may set a boundary of the first luminescent region PXA-R, the second luminescent region PXA-G, and the third luminescent region PXA-B. The non-luminescent region NPXA may surround the first luminescent region PXA-R, the second luminescent region PXA-G, and the third luminescent region PXA-B. In the non-luminescent region NPXA, a structure (e.g., a pixel defining film PDL (reference Figure 4A )).

[0067] Figure 4A is a cross-sectional view of an embodiment of a display device according to the inventive concept. Figure 4B is a cross-sectional view of an embodiment of a display device according to the inventive concept. Figure 4A and Figure 4B Each of them is along Figure 3 A cross-sectional view taken along line II' in FIG.

[0068] refer to Figure 4A The display module DM in the embodiment may include a display panel DP, a sensor layer TU disposed on the display panel, and a color filter layer CFL disposed on the sensor layer TU.

[0069] The display panel DP may include a base layer BS, a circuit layer DP-CL, and a display element layer DP-ED stacked sequentially. The display element layer DP-ED may include a pixel defining film PDL, a light emitting element ED having a light emitting layer EML disposed in a plurality of pixel openings OH defined in the pixel defining film PDL, and an encapsulation layer TFE disposed on the light emitting element ED.

[0070] In the display panel DP, the base layer BS may be a member providing a base surface on which the display element layer DP-ED is disposed. The base layer BS may be rigid or flexible. The base layer BS may be a glass substrate, a metal substrate, or a polymer substrate. However, the inventive concept is not limited thereto, and the base layer BS may be an inorganic layer, an organic layer, or a composite material layer.

[0071] The base layer BS may have a multilayer structure as well as a single-layer structure. In an embodiment, for example, the base layer BS may have a three-layer structure of a polymer resin layer, an adhesive layer, and a polymer resin layer. In particular, the polymer resin layer may include a polyimide resin. In addition, the polymer resin layer may include at least one of an acrylate resin, a vinyl resin, an epoxy resin, a polyurethane resin, a cellulose resin, a siloxane resin, and a perylene resin. The "component-classified" resin used herein refers to a resin including the functional groups of the component.

[0072] The circuit layer DP-CL may be disposed on the base layer BS. The circuit layer DP-CL may include an insulating layer, a semiconductor pattern, a conductive pattern, and a signal line. The circuit layer DP-CL may include a plurality of transistors (not shown) including or consisting of a semiconductor pattern, a conductive pattern, and a signal line. Each transistor (not shown) may include a control electrode, an input electrode, and an output electrode. In an embodiment, for example, the circuit layer DP-CL may include a driving transistor and a switching transistor for driving the light emitting element ED.

[0073] The display element layer DP-ED may be disposed on the circuit layer DP-CL. The display element layer DP-ED may include a pixel definition film PDL, a light emitting element ED, and an encapsulation layer TFE. In an embodiment, the display element layer DP-ED may include a plurality of light emitting elements ED-1, ED-2, and ED-3.

[0074] Each of the light-emitting elements ED-1, ED-2, and ED-3 may include a first electrode EL1, a second electrode EL2 facing the first electrode EL1, and a light-emitting layer EML disposed between the first electrode EL1 and the second electrode EL2. In addition, each of the light-emitting elements ED-1, ED-2, and ED-3 may further include a hole transport region HTR and an electron transport region ETR. In addition, each of the light-emitting elements ED-1, ED-2, and ED-3 may further include a coating layer CPL disposed on the second electrode EL2.

[0075] In the display element layer DP-ED, the first light emitting element ED-1 may include a first light emitting layer EML-R overlapping the first light emitting region PXA-R, and the second light emitting element ED-2 may include a second light emitting layer EML-G overlapping the second light emitting region PXA-G. The third light emitting element ED-3 may include a third light emitting layer EML-B overlapping the third light emitting region PXA-B.

[0076] As used herein, the expression "overlapping with" of two components is not limited to the case where the two components have the same area and the same shape in a plan view, and includes the case where the two components have different areas and / or different shapes. The plane refers to a plane perpendicular to the thickness direction.

[0077] The pixel defining film PDL may be disposed on the circuit layer DP-CL. A plurality of pixel openings OH may be defined in the pixel defining film PDL. At least a portion of the first electrode EL1 may be exposed in the pixel opening OH of the pixel defining film PDL.

[0078] The pixel openings OH defined in the pixel definition film PDL may correspond to the emission regions PXA-R, PXA-G, and PXA-B, respectively. The non-emission region NPXA may be a region between adjacent emission regions PXA-R, PXA-G, and PXA-B and may be a region corresponding to the pixel definition film PDL.

[0079] The pixel definition film PDL may include an organic resin or an inorganic material. In an embodiment, for example, the pixel definition film PDL may include a polyacrylate resin, a polyimide resin, a silicon nitride (SiN x ), silicon oxide (SiO x ) or silicon oxynitride (SiO x N y ) etc. are formed at the same time.

[0080] In addition, in an embodiment, the pixel defining film PDL may have a light absorption property, and for example, the pixel defining film PDL may have a black color. The pixel defining film PDL may include a black colorant. The black colorant may include a black dye or a black pigment. The pixel defining film PDL may correspond to a light shielding pattern having a light shielding property.

[0081] Figure 4A and Figure 4B An embodiment is shown in which the corresponding light emitting layers EML-R, EML-G and EML-B of the light emitting elements ED-1, ED-2 and ED-3 are disposed in the pixel opening OH defined in the pixel defining film PDL and the hole transport region HTR, the electron transport region ETR, the second electrode EL2 and the cladding layer CPL are provided as common layers in all of the light emitting elements ED-1, ED-2 and ED-3. However, the inventive concept is not limited thereto, and in the embodiment, Figure 4A and Figure 4B Different from that shown in , at least one of the hole transport region HTR, the electron transport region ETR, the second electrode EL2 and the cladding layer CPL can be provided by patterning in the pixel opening OH defined in the pixel defining film PDL. In an embodiment, the hole transport region HTR, the electron transport region ETR, the second electrode EL2, the cladding layer CPL, and at least one of the light-emitting layers EML-R, EML-G or EML-B of the light-emitting element ED-1, ED-2 or ED-3 can be provided by patterning by an inkjet printing method.

[0082] In the display module DM of the embodiment, a plurality of light emitting elements ED-1, ED-2 and ED-3 may emit light in different wavelength ranges. In the embodiment, for example, the display module DM may include a first light emitting element ED-1 emitting red light, a second light emitting element ED-2 emitting green light, and a third light emitting element ED-3 emitting blue light. That is, the red light emitting area PXA-R, the green light emitting area PXA-G and the blue light emitting area PXA-B in the display device of the embodiment may correspond to the first light emitting element ED-1, the second light emitting element ED-2 and the third light emitting element ED-3, respectively. However, the inventive concept is not limited thereto, and the first light emitting element ED-1, the second light emitting element ED-2 and the third light emitting element ED-3 may emit light in the same wavelength range, or at least one of the first light emitting element ED-1, the second light emitting element ED-2 and the third light emitting element ED-3 may emit light in a wavelength range different from the other light emitting elements. In the embodiment, for example, the first light emitting element ED-1, the second light emitting element ED-2 and the third light emitting element ED-3 may emit blue light.

[0083] In the light emitting element ED, the first electrode EL1 may be disposed on the circuit layer DP-CL. The first electrode EL1 may be an anode or a cathode. In addition, the first electrode EL1 may be a pixel electrode. The first electrode EL1 may be a transmissive electrode, a semi-transmissive semi-reflective electrode, or a reflective electrode.

[0084] The hole transport region HTR may be disposed between the first electrode EL1 and the light emitting layer EML. The hole transport region HTR may include at least one of a hole injection layer, a hole transport layer, and an electron blocking layer. The hole transport region HTR may be provided as a common layer so as to overlap with the entirety of the light emitting regions PXA-R, PXA-G, and PXA-B and the pixel defining film PDL separating the light emitting regions PXA-R, PXA-G, and PXA-B. However, the inventive concept is not limited thereto, and the hole transport region HTR may be provided by patterning so that the patterned hole transport region HTR is separately provided to correspond to the light emitting regions PXA-R, PXA-G, and PXA-B, respectively.

[0085] The light-emitting layer EML may be disposed on the first electrode EL1. The light-emitting layer EML may include a plurality of light-emitting layers EML-R, EML-G, and EML-B. The first light-emitting layer EML-R may overlap with the first light-emitting region PXA-R and emit a first light. The second light-emitting layer EML-G may overlap with the second light-emitting region PXA-G and emit a second light. The third light-emitting layer EML-B may overlap with the third light-emitting region PXA-B and emit a third light. In the light-emitting elements ED-1, ED-2, and ED-3 of the embodiments, the first light to the third light may have substantially different wavelength ranges. In the embodiment, for example, the first light may be red light in a wavelength range of about 625 nanometers (nm) to about 675 nm, and the second light may be green light in a wavelength range of about 500 nm to about 570 nm, and the third light may be blue light in a wavelength range of about 410 nm to about 480 nm.

[0086] The electron transport region ETR may be disposed between the light emitting layer EML and the second electrode EL2. The electron transport region ETR may include at least one of an electron injection layer, an electron transport layer, and a hole blocking layer. The electron transport region ETR may be provided as a common layer so as to overlap with the entirety of the light emitting regions PXA-R, PXA-G, and PXA-B and the pixel defining film PDL separating the light emitting regions PXA-R, PXA-G, and PXA-B. However, the inventive concept is not limited thereto, and the electron transport region ETR may be provided by patterning so that the patterned electron transport region ETR is separately provided to correspond to the light emitting regions PXA-R, PXA-G, and PXA-B, respectively.

[0087] The second electrode EL2 is provided on the electron transport region ETR. The second electrode EL2 may be a common electrode. The second electrode EL2 may be a cathode or an anode, but the inventive concept is not limited thereto. In an embodiment, for example, when the first electrode EL1 is an anode, the second electrode EL2 may be a cathode, and when the first electrode EL1 is a cathode, the second electrode EL2 may be an anode. The second electrode EL2 may be a transmissive electrode, a semi-transmissive and semi-reflective electrode, or a reflective electrode.

[0088] The coating layer CPL may also be disposed on the second electrode EL2. The coating layer CPL may include a multilayer or a single layer. In an embodiment, the coating layer CPL may be an organic layer or an inorganic layer. In an embodiment, for example, when the coating layer CPL includes an inorganic material, the inorganic material may include an alkali metal compound (such as LiF), an alkaline earth metal compound (such as MgF 2 、SiO x N y 、SiN x and SiO xIn an embodiment, for example, when the capping layer CPL includes an organic material, the organic material may include α-NPD, NPB, TPD, m-MTDATA, Alq 3 , CuPc, N4,N4,N4',N4'-tetrakis(biphenyl-4-yl)biphenyl-4,4'-diamine ("TPD15") and 4,4',4"tris(carbazole-9-yl)triphenylamine ("TCTA"), or include epoxy resins or acrylate resins (such as methacrylate resins). However, the inventive concept is not limited thereto.

[0089] The encapsulation layer TFE may be disposed on the light emitting element ED. The encapsulation layer TFE may be disposed on the light emitting element ED while covering the light emitting element ED. The encapsulation layer TFE may fill a portion of the pixel opening OH and may be disposed on the cover layer CPL. Figure 4A and Figure 4B The encapsulation layer TFE as a single layer is shown, but the encapsulation layer TFE may include at least one layer of organic film or inorganic film, or both organic film and inorganic film. The encapsulation layer TFE may have a thin film encapsulation layer structure including at least one layer of organic film and at least one layer of inorganic film. In an embodiment, for example, the encapsulation layer TFE may have a structure in which organic films and inorganic films are alternately and repeatedly stacked or a structure in which inorganic films, organic films, and inorganic films are sequentially stacked. The encapsulation layer TFE may be used to protect the light-emitting element ED from moisture and / or oxygen, and to protect the light-emitting element ED from foreign substances (such as dust particles).

[0090] For example, the inorganic film included in the encapsulation layer TFE may include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer, but the inventive concept is not limited thereto. The organic film included in the encapsulation layer TFE may include an acrylate organic film, but the inventive concept is not limited thereto.

[0091] Figure 4A The display module DM in the embodiment shown in FIG. 4 may include a color filter layer CFL disposed on the display panel DP. Figure 4A The color filter layer CFL shown in FIG. 1 may correspond to the above Figure 2The optical layer OPL described in . The color filter layer CFL may be a light control layer that selectively transmits light. In an embodiment, the color filter layer CFL may be an anti-reflection layer or a low-reflection layer for reducing the reflectivity of external light incident from outside the display device. In addition, the color filter layer CFL may improve the color gamut of the display device by selectively transmitting part of the provided light. As used herein, the term "color gamut" refers to the range of colors that can be displayed by the display device. In an embodiment, for example, the color filter layer CFL may improve the color gamut by selectively absorbing or transmitting light within a predetermined wavelength range. The light that passes through the color filter layer CFL and is incident on the display panel DP, etc. may be non-polarized light. The display panel DP may receive non-polarized light from above the color filter layer CFL.

[0092] The color filter layer CFL may include a filter part CF and a partition pattern BM in which partition openings OH-BM are defined. A plurality of partition openings OH-BM may be defined to respectively correspond to the plurality of pixel openings OH.

[0093] The filter component CF may include a first filter component CF-R transmitting a first color light, a second filter component CF-G transmitting a second color light, and a third filter component CF-B transmitting a third color light. In an embodiment, for example, the first filter component CF-R may be a red filter, the second filter component CF-G may be a green filter, and the third filter component CF-B may be a blue filter.

[0094] The filter component CF may include a first portion P1 and a second portion P2. In an embodiment, the first filter component CF-R may include a first portion P1 and a second portion P2. A detailed description of the first portion P1 and the second portion P2 will be referred to later. Figure 5 and the accompanying drawings that follow.

[0095] Each of the first filter component CF-R, the second filter component CF-G, and the third filter component CF-B may include a polymer photosensitive resin and a colorant. Each of the first filter component CF-R, the second filter component CF-G, and the third filter component CF-B may include a pigment or dye. The first filter component CF-R may include a first colorant, the second filter component CF-G may include a second colorant, and the third filter component CF-B may include a third colorant. The first filter component CF-R may include a red pigment or dye, the second filter component CF-G may include a green pigment or dye, and the third filter component CF-B may include a blue pigment or dye. The inventive concept is not limited thereto, and the third filter component CF-B may not include a pigment or dye. In an embodiment, for example, the third filter component CF-B may include a transparent photosensitive resin or be composed of a transparent photosensitive resin, and the third filter component CF-B may be transparent. When the third filter part CF-B includes or consists of a transparent photosensitive resin, the light transmitted by the third filter part CF-B is not limited to the third color light.

[0096] The color filter layer CFL may include a segmentation pattern BM. The color filter layer CFL may include a segmentation pattern BM, and the segmentation pattern BM is arranged to overlap the boundaries of the adjacent first filter component CF-R, the second filter component CF-G, and the third filter component CF-B. The segmentation pattern BM may be arranged to correspond to the non-luminous area NPXA, and the first filter component CF-R, the second filter component CF-G, and the third filter component CF-B may be arranged to correspond to the first luminous area PXA-R, the second luminous area PXA-G, and the third luminous area PXA-B, respectively. The segmentation pattern BM may be spaced apart from each other. The segmentation pattern BM may be a black matrix for preventing light leakage. The segmentation pattern BM may be formed while including an inorganic light-shielding material or an organic light-shielding material containing a black pigment or a black dye. The segmentation pattern BM may define the boundaries between the adjacent first filter component CF-R, the second filter component CF-G, and the third filter component CF-B. In an alternative embodiment, in an embodiment, the segmentation pattern BM may include or consist of a blue filter.

[0097] The color filter layer CFL may further include a protective layer OC. The protective layer OC may cover the filter component CF and the segmentation pattern BM. The protective layer OC may overlap the entirety of the display element layer DP-ED. The upper surface of the protective layer OC may define the upper surface of the color filter layer CFL and cover the front surface of the display panel DP to protect the display panel DP.

[0098] The display module DM in the embodiment may include a sensor layer TU disposed between the display panel DP and the color filter layer CFL. The sensor layer TU may include a sensor base layer BS-TU, a first conductive layer SP1, an inorganic insulating layer IL, a second conductive layer SP2, and an organic insulating layer OL. The first conductive layer SP1 may be disposed on the sensor base layer BS-TU. The inorganic insulating layer IL may cover the first conductive layer SP1 and may be disposed on the sensor base layer BS-TU and the first conductive layer SP1. The second conductive layer SP2 may be disposed on the inorganic insulating layer IL. The organic insulating layer OL may cover the second conductive layer SP2 and may be disposed on the inorganic insulating layer IL and the second conductive layer SP2.

[0099] The sensor base layer BS-TU may be an inorganic layer including any one of silicon nitride, silicon oxynitride, and silicon oxide. In an alternative embodiment, the sensor base layer BS-TU may be an organic layer including an epoxy resin, an acrylic resin, or an imide resin. The sensor base layer BS-TU may have a single-layer structure or a multi-layer structure in which layers are stacked along a third direction DR3. The sensor base layer BS-TU may be directly disposed on the encapsulation layer TFE.

[0100] Each of the first conductive layer SP1 and the second conductive layer SP2 may have a single-layer structure or a multilayer structure in which layers are stacked along the third direction DR3. The conductive layers SP1 and SP2, each having a 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"), zinc oxide (ZnO), and indium zinc tin oxide ("IZTO")). In addition, the transparent conductive layer may include a conductive polymer (such as poly (3,4-ethylenedioxythiophene) ("PEDOT"), metal nanowires, graphene, etc.).

[0101] The conductive layers SP1 and SP2 each having a multi-layer structure may include a metal layer. For example, the metal layer may have a three-layer structure of a titanium (Ti) layer / aluminum (Al) layer / titanium (Ti) layer. The conductive layers SP1 and SP2 each having a multi-layer structure may include at least one metal layer and at least one transparent conductive layer.

[0102] The inorganic insulating layer IL may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide.

[0103] The contact hole CN may be defined in the inorganic insulating layer IL. The first conductive layer SP1 and the second conductive layer SP2 may be electrically connected through the contact hole CN. The contact hole CN may be filled with a material of the second conductive layer SP2.

[0104] The organic insulating layer OL may cover the inorganic insulating layer IL and the second conductive layer SP2. The organic insulating layer OL may include at least one of acrylate resin, methacrylate resin, polyisoprene resin, vinyl resin, epoxy resin, polyurethane resin, cellulose resin, siloxane resin, polyimide resin, polyamide resin, and perylene resin.

[0105] Figure 4B The display module DM-1 in the embodiment shown in FIG. Figure 4A The display module DM shown in FIG. 1 is different in that the color filter layer CFL-1 does not include a separate partitioning pattern BM (refer to FIG. 1 ). Figure 4A In an embodiment, the color filter layer CFL-1 may not include a separate partitioning pattern BM (refer to Figure 4A ), and may include a portion in which a plurality of filter components CF-R, CF-G, and CF-B are arranged to overlap each other in a third direction DR3 as a thickness direction. The first filter component CF-R, the second filter component CF-G, and the third filter component CF-B may all overlap, and thus these portions may play the same role as a black matrix. In an embodiment, the portion in which the first filter component CF-R, the second filter component CF-G, and the third filter component CF-B are arranged to overlap each other may also be referred to as a segmentation pattern.

[0106] Figure 5 is an enlarged cross-sectional view of a portion of a display device according to the inventive concept. Figure 6 is a plan view illustrating some components of a display device according to the inventive concept. Figure 5 FIG. 1 is a diagram for explaining the color filter layer CFL in more detail. Figure 4A An enlarged cross section of area AA' in FIG. Figure 6 is used to explain the first part P1 and the second part P2 in more detail. Figure 5 An enlarged plan view of some of the components shown in FIG. Figure 6 The pixel opening OH, the segmentation opening OH-BM, and the first portion P1 are shown to have a circular shape in a plan view, but are not limited to such shapes. Therefore, when desired, the pixel opening OH, the segmentation opening OH-BM, and the first portion P1 may have various shapes (such as an elliptical shape, a polygon (e.g., a quadrilateral or a triangle), or other arbitrary shapes) in a plan view. Figure 5 , Figure 6 and Figure 4A The color filter layer CFL according to the inventive concept is described in more detail. The same components as those described above will be denoted by the same reference numerals or symbols, and detailed descriptions thereof will be omitted.

[0107] The color filter layer CFL includes a first portion P1 and a second portion P2 surrounding the first portion P1. At least one filter component among the plurality of filter components CF-R, CF-G, and CF-B may include the first portion P1 and the second portion P2. In an embodiment, for example, the first filter component CF-R may include the first portion P1 and the second portion P2. As used herein, the term "color filter" may refer to any one filter component including the first portion P1 and the second portion P2 among the plurality of filter components CF-R, CF-G, and CF-B. Among the plurality of filter components CF-R, CF-G, and CF-B, any one filter component CF including the first portion P1 and the second portion P2 may also be referred to as a color filter CF.

[0108] The filter component (hereinafter, also referred to as a color filter) CF includes a first portion P1 and a second portion P2. The first portion P1 overlaps with the light emitting region PXA. The first portion P1 may overlap with a portion of the light emitting region PXA and may not overlap with the non-light emitting region NPXA. The first portion P1 may not contact the segmentation pattern BM. In a plan view, the first portion P1 may be spaced apart from the segmentation pattern BM by a predetermined distance. The first portion P1 may be defined as an adjacent portion relative to the center line MM. The center line MM may refer to an axis extending in a third direction DR3 from the center of the light emitting region PXA in a plan view. As used herein, the light emitting region PXA may refer to a light emitting region corresponding to the color filter CF among the light emitting regions PXA-R, PXA-G, and PXA-B. In an embodiment, for example, the center line MM may refer to an axis extending in the third direction DR3 in the first light emitting region PXA-R along the center of the plane defined by the first direction DR1 and the second direction DR2. The first portion P1 may overlap with a central portion of the light emitting region PXA adjacent to the center line MM.

[0109] The first portion P1 may have a shape corresponding to the light emitting region PXA. The light emitting region PXA may have a first width D1 in one direction from the center line MM, and the first portion P1 may have a second width D2 in one direction from the center line MM. The length ratio of the second width D2 to the first width D1 may be about 0.4 to about 0.6. In an embodiment, the first width D1 may be about 6 micrometers (μm) to about 20 μm, and the second width D2 may be about 3 μm to about 10 μm. In an embodiment, for example, the first width D1 may be about 11 μm to about 15 μm, and the second width D2 may be about 4 μm to about 7 μm.

[0110] The second portion P2 may overlap the light emitting area PXA and the non-light emitting area NPXA. The second portion P2 may contact the first portion P1, and the second portion P2 may contact the partitioning pattern BM. The second portion P2 may contact at least a portion of the side surface of the partitioning opening OH-BM. The second portion P2 may overlap the edge portion of the light emitting area PXA spaced apart from the center line MM and the non-light emitting area NPXA. The second portion P2 may be defined as a portion of the color filter CF that overlaps with the traveling direction of the transmitted light RU. The transmitted light RU may refer to any light emitted from the light emitting element ED that is perceived by a user of the display device DD within a range of a first angle AG based on the center of the upper surface of the first electrode EL1 relative to the third direction DR3 as a normal direction. The first angle AG may be about 30 degrees to about 60 degrees. The light emitted from the light emitting element ED may also be referred to as "source light".

[0111] The color filter CF includes a colorant. The color filter CF may include a pigment or a dye. In an embodiment, for example, the color filter CF may include a red pigment or a red dye. Since the color filter CF includes a colorant, the color filter CF may absorb at least a portion of the light emitted from the light emitting element ED. In an embodiment, for example, the color filter CF may absorb at least a portion of the first light emitted from the first light emitting element ED-1.

[0112] The mass percentage of the colorant included in the first portion P1 relative to the total weight of the first portion P1 is a first mass percentage, and the mass percentage of the colorant included in the second portion P2 relative to the total weight of the second portion P2 is a second mass percentage greater than the first mass percentage. The ratio of the first mass percentage to the second mass percentage may be about 0.50 to about 0.97. In an embodiment, for example, the ratio of the first mass percentage to the second mass percentage may be about 0.80 to about 0.92. However, the ratio of the first mass percentage to the second mass percentage is not limited thereto and may vary when desired. In an embodiment, for example, depending on the ratio of the transmittance of the first portion P1 to the transmittance of the second portion P2, the ratio of the first mass percentage to the second mass percentage may be within a predetermined range. The first portion P1 may include a colorant having a first concentration, and the second portion P2 includes a colorant having a second concentration higher than the first concentration. The second portion P2 may be defined as a portion of the color filter CF having a relatively high concentration of colorant.

[0113] In an embodiment, the first portion P1 may include a polymer photosensitive resin and a (1-1)th colorant, and the second portion P2 may include a polymer photosensitive resin and a (1-2)th colorant. The (1-1)th colorant and the (1-2)th colorant may be composed of the same material, include the same material, or may be composed of materials different from each other. The (1-1)th colorant and the (1-2)th colorant may each independently be a red pigment or a red dye. The mass percentage of the (1-1)th colorant relative to the total weight of the first portion P1 may be a first mass percentage, and the mass percentage of the (1-2)th colorant relative to the total weight of the second portion P2 may be a second mass percentage greater than the first mass percentage. The (1-1)th colorant may have a first concentration in the first portion P1, and the (1-2)th colorant may have a second concentration higher than the first concentration in the second portion P2.

[0114] The transmittance of the color filter CF with respect to visible light may become lower in a direction away from the center line MM. The transmittance of the first portion P1 may be higher than the transmittance of the second portion P2. The transmittance of the second portion P2 may be lower than the transmittance of the first portion P1 and higher than the transmittance of the segmentation pattern BM. With respect to light in a wavelength range of about 600nm to about 700nm, the transmittance of the first portion P1 may be higher than the transmittance of the second portion P2. In an embodiment, for example, the transmittance of the second portion P2 may be about 82% to about 92% of the transmittance of the first portion P1. The transmittance of the second portion P2 with respect to visible light may become lower in a direction away from the center line MM. In an embodiment, for example, the transmittance of the second portion P2 adjacent to the first portion P1 may be about 82% to about 85% of the transmittance of the first portion P1, and the transmittance of the second portion P2 overlapping the non-luminous area NPXA may be about 88% to about 91% of the transmittance of the first portion P1. Since the second concentration in the second portion P2 may be higher than the first concentration in the first portion P1 , the absorbance of the second portion P2 may be higher than that of the first portion P1 , and thus the transmittance of the first portion P1 may be higher than that of the second portion P2 .

[0115] Among the plurality of filter components CF-R, CF-G, and CF-B, the first filter component CF-R may include the first portion P1 and the second portion P2 described above, and the second filter component CF-G and the third filter component CF-B may not include the first portion P1 and the second portion P2. The first portion P1 of the first filter component CF-R may include a first colorant having a first concentration, and the second portion P2 of the first filter component CF-R includes a first colorant having a second concentration higher than the first concentration. The second filter component CF-G may include a second colorant, and the concentration of the second colorant may be substantially uniform in the surface of the second filter component CF-G. That is, the second filter component CF-G may not include a plurality of regions having different concentrations of the second colorant.

[0116] Compared with the second transmittance of the second portion P2 in the first filter component CF-R relative to the first light, the first transmittance of the first portion P1 in the first filter component CF-R relative to the first light may be relatively high. The second transmittance may be about 82% to about 90% of the first transmittance. In an embodiment, for example, the second transmittance may be about 87% to about 89% of the first transmittance. However, the value of the second transmittance is not limited thereto and may vary when desired. In addition, the transmittance of the second filter component CF-G relative to the second light and the transmittance of the third filter component CF-B relative to the third light may be substantially the same. That is, the second filter component CF-G and the third filter component CF-B may not include a plurality of regions having different transmittances relative to the second light or the third light.

[0117] Hereinafter, the evaluation results of the characteristics of the display device in the embodiment of the present invention will be described with reference to the drawings described above and the embodiments and comparative examples to be described below. In addition, the embodiment shown below is one of the multiple embodiments for understanding the present invention, and the scope of the present invention is not limited thereto.

[0118] In the following embodiments and comparative examples, display devices are manufactured to have the same structure except for the color filter layer CFL. Figure 4A The display device DD in the embodiment of the present invention has a structure in which the first filter component CF-R includes a first portion P1 and a second portion P2. The embodiment of the display device is manufactured so that a first concentration of a colorant included in the first portion P1 is lower than a second concentration of a colorant included in the second portion P2. In contrast, the comparative example of the display device is manufactured to have a structure in which the first filter component CF-R does not include the first portion P1 and the second portion P2. The comparative example of the display device is manufactured so that the concentration of the colorant included in the first filter component CF-R is substantially uniform in a plan view.

[0119] Fig. 7A is a graph showing an embodiment of color coordinates versus viewing angle, and Figure 7B is a graph showing a comparative example of color coordinates versus viewing angle.

[0120] refer to Fig. 7A and Figure 7B , the first point C1 and C1-a show the color coordinates at a viewing angle of about 0 degrees, the second point C2 and C2-a show the color coordinates at a viewing angle of about 30 degrees, the third point C3 and C3-a show the color coordinates at a viewing angle of about 45 degrees, and the fourth point C4 and C4-a show the color coordinates at a viewing angle of about 60 degrees. The viewing angle may be relative to the display surface IS (reference Figure 1 ) is inclined at an angle in the third direction DR3 in the normal direction of the axis.

[0121] refer to Fig. 7A , in the display device DD (for example, reference Figure 1 ), a second point C2 showing color coordinates at a viewing angle of about 30 degrees, a third point C3 showing color coordinates at a viewing angle of about 45 degrees, and a fourth point C4 showing color coordinates at a viewing angle of about 60 degrees are set within the target area TA. Figure 7B In a comparative example of the display device, a third point C3-a showing color coordinates at a viewing angle of approximately 45 degrees and a fourth point C4-a showing color coordinates at a viewing angle of approximately 60 degrees are set within the target area TA, but a second point C2-a showing color coordinates at a viewing angle of approximately 30 degrees is set outside the target area TA.

[0122] By adjusting the display element layer DP-ED (for example, reference Figure 4A ) in the light emitting element ED (for example, reference Figure 4A ), the white coordinates at a viewing angle of about 45 degrees can be adjusted to predetermined color coordinates. A target area TA of color coordinates can be determined based on the white coordinates at a viewing angle of about 45 degrees. When each white coordinate at viewing angles of about 30 degrees and about 60 degrees is set within the target area TA, the white angle dependency according to the viewing angle can be reduced, and thus the display device DD can have improved reliability. Since an embodiment of the display device DD includes the first portion P1 having different concentrations of colorants (e.g., reference Figure 4A ) and a second part P2 (eg, reference Figure 4A ), and thus it can be understood that two white coordinates at viewing angles of approximately 30 degrees and approximately 60 degrees are located within the target area TA, and thus the display device DD has improved reliability compared to the comparative example of the display device.

[0123] The display device in the embodiment of the present invention includes a first part and a second part having different concentrations of colorants in the color filter layer. The display device in the embodiment of the present invention includes the second part, and thus the transmittance at a predetermined viewing angle can be relatively reduced. Specifically, when the light emitted from the light emitting element passes through the second part having a relatively high concentration of colorants in a color filter, the absorptivity can be relatively high compared to when the light passes through the first part. The second part can be provided to adjust the absorptivity at a viewing angle of about 30 degrees to about 60 degrees. The first filter component of the display device in the embodiment may include the first part and the second part, and the second filter component and the third filter component may not include the first part and the second part. Therefore, the display device in the embodiment can prevent the display surface from appearing red at a predetermined viewing angle, and reduce the hue difference according to the viewing angle, thereby improving the display quality of the display device.

[0124] In an embodiment of the present inventive concept, a display device includes a color filter layer including portions having different concentrations of colorants. Therefore, a display device including a color filter layer in an embodiment of the present inventive concept can reduce white angle dependency according to a viewing angle.

[0125] Although the embodiments of the inventive concept have been described, it should be understood that the inventive concept should not be limited to these embodiments, but a person skilled in the art can make various changes and modifications within the spirit and scope of the inventive concept to be protected. Therefore, the technical scope of the inventive concept is not limited to the contents described in the specific embodiments of the specification, but should be defined by the appended claims.

Claims

1. A display device, wherein: The display device comprises: A substrate layer, comprising a light-emitting region and a non-light-emitting region adjacent to the light-emitting region; A display element layer disposed on the base layer and including a light emitting element corresponding to the light emitting area; and A color filter, disposed on the display element layer and including a colorant, the color filter comprising: A first portion overlapping the light emitting area; and The second part, around the first part, Wherein a first weight percentage of the colorant included in the first part relative to the total weight of the first part is less than a second weight percentage of the colorant included in the second part relative to the total weight of the second part.

2. The display device according to claim 1, wherein: The colorant includes a dye or a pigment.

3. The display device according to claim 1, wherein: The second portion overlaps the light emitting area and the non-light emitting area.

4. The display device according to claim 1, wherein: The light emitting element emits source light, The color filter absorbs at least a portion of the source light, and With respect to the source light, a first light transmittance of the first portion is higher than a second light transmittance of the second portion.

5. The display device according to claim 4, wherein: The display device further includes a partitioning pattern, the partitioning pattern being opposite to the color filter on the display element layer and overlapping the non-luminous region, Wherein, relative to the source light, the light transmittance of the segmentation pattern is lower than the second light transmittance.

6. The display device according to claim 4, wherein: An absorptivity of the first portion with respect to the source light is lower than an absorptivity of the second portion with respect to the source light.

7. The display device according to claim 1, wherein: In plan view, a virtual center line is defined in the light emitting region, and The first portion is defined as a portion adjacent to the centerline.

8. The display device according to claim 7, wherein: The light emitting element emits source light, and The light transmittance of the color filter with respect to the source light becomes lower in the direction away from the center line in the plan view.

9. The display device according to claim 7, wherein: The light emitting area has a first width in a first direction from the center line, The first portion has a second width in the first direction from the center line to correspond to the light emitting area, and A ratio of the second width to the first width is 0.4 to 0.

6.

10. A display device, wherein: The display device comprises: A base layer including a first light emitting region, a second light emitting region, a third light emitting region, and a non-light emitting region defined between the first light emitting region to the third light emitting region, which are spaced apart from each other in a plan view; A display element layer is provided on the base layer and includes first to third light emitting elements corresponding to the first to third light emitting areas, respectively; and A color filter layer is disposed on the display element layer, and the color filter layer includes: a first filter component overlapping the first light emitting region and comprising a first colorant, the first filter component comprising: a first portion having a first concentration of said first colorant; and a second portion having a second concentration of the first colorant; a second filter member overlapping the second light emitting region and including a second colorant; and A third filter component overlaps the third light emitting region, wherein the first concentration is lower than the second concentration.

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