Display panel

Abstract

The display panel includes: an upper display substrate including a display area and a non-display area adjacent to the display area; and a lower display substrate facing the upper display substrate to emit first-color light, the lower display substrate including a plurality of display elements respectively overlapping with pixel areas. The display area includes a plurality of pixel areas and a light-shielding area adjacent to the pixel areas. The upper display substrate includes: a base substrate; a first light control layer on the base substrate to control the first-color light; a capping layer including an absorption portion overlapping with the display area and on the first light control layer, and a blocking portion overlapping with the light-shielding area and protruding from the absorption portion in the thickness direction of the base substrate; and a second light control layer on the blocking portion.

Description

[0001] Cross - reference to related applications

[0002] This application claims the priority and benefit of Korean Patent Application No. 10 - 2019 - 0061836, filed on May 27, 2019, the entire content of which is incorporated herein by reference. Technical field

[0003] Embodiments of the present disclosure herein relate to a display device, and for example, to a display panel including a light control layer. Background art

[0004] Various display devices are being developed for multimedia devices such as televisions, mobile phones, desktop computers, navigation devices, and game consoles. The display device includes a transmissive display panel that selectively transmits source light generated from a light source, and an emissive display panel that generates source light in the display panel itself.

[0005] The display panel includes a light control layer that receives light emitted from a light source to change the characteristics of the received light. Gas may be generated from a chamber that generates high heat or from the light control layer in a high - temperature and high - humidity environment. Summary of the invention

[0006] The present disclosure provides a display panel including a capping layer that prevents or reduces gas from permeating into an internal space between two display substrates, the gas being generated from the light control layer.

[0007] Embodiments of the present disclosure may be a display panel including: an upper display substrate including a display area and a non - display area adjacent to the display area, wherein the display area includes a plurality of pixel areas and a light - shielding area adjacent to the plurality of pixel areas; and a lower display substrate facing the upper display substrate to emit first - color light, the lower display substrate including a plurality of display elements respectively overlapping the plurality of pixel areas, wherein the upper display substrate includes: a base substrate; a first light control layer on the base substrate to control the first - color light; a capping layer including an absorption portion overlapping the display area and on the first light control layer, and a blocking portion overlapping the light - shielding area and protruding from the absorption portion in a thickness direction of the base substrate; and a second light control layer on the blocking portion.

[0008] In an embodiment, the display panel may further include a sub - capping layer between the first light control layer and the capping layer, wherein the sub - capping layer completely covers the first light control layer.

[0009] In an embodiment, the capping layer may be directly on the sub - capping layer.

[0010] In an embodiment, the sub - capping layer may include an inorganic material, and the capping layer may include an organic material.

[0011] In an embodiment, the absorption portion may have a thickness greater than the thickness of the sub-cap layer in the thickness direction.

[0012] In an embodiment, a plurality of pixel regions may include a first pixel region, a second pixel region, and a third pixel region arranged in one direction, and the first light control layer may include: a first conversion portion overlapping with the first pixel region and configured to convert first-color light to emit second-color light different from the first-color light; a second conversion portion overlapping with the second pixel region and configured to convert first-color light to emit third-color light different from the second-color light; and a transmissive portion overlapping with the third pixel region and configured to transmit the first-color light.

[0013] In an embodiment, the absorption portion may include: a first absorption portion overlapping with the light-shielding region and between the first conversion portion and the second conversion portion, between the second conversion portion and the transmissive portion, and between the first conversion portion and the transmissive portion; and a second absorption portion overlapping with the display region, the second absorption portion being configured to cover the first absorption portion and on the first light control layer, wherein the blocking portion may protrude from the second absorption portion.

[0014] In an embodiment, the blocking portion may have a thickness greater than the thickness of the second absorption portion in the thickness direction.

[0015] In an embodiment, the blocking portion may be spaced apart from the lower display substrate by a predetermined distance.

[0016] In an embodiment, the second light control layer may be a reflective layer including a metal material configured to reflect the first-color light.

[0017] In an embodiment, the reflective layer may be on the entire outer surface of the blocking portion.

[0018] In an embodiment, the blocking portion may include: a first outer surface and a second outer surface facing each other and connected to the absorption portion; and a bottom surface configured to connect the first outer surface to the second outer surface, and the reflective layer may be on the first outer surface and the second outer surface.

[0019] In an embodiment, the bottom surface of the blocking portion may be exposed from the second light control layer to face the lower display substrate.

[0020] In an embodiment, at least a portion of the second light control layer may contact the lower display substrate.

[0021] In an embodiment, the lower display substrate may include: a lower base substrate; a display element layer on the lower base substrate and including display elements; and a cover layer configured to cover the display element layer, wherein the second light control layer may contact the cover layer.

[0022] In an embodiment, the second light control layer may be a light-shielding layer configured to absorb the first color light.

[0023] In an embodiment, the light-shielding layer may be on the entire outer surface of the blocking portion.

[0024] In an embodiment, the display panel may further include a color filter layer between the substrate and the first light control layer.

[0025] In an embodiment, the plurality of pixel regions may include a first pixel region, a second pixel region, and a third pixel region arranged in one direction, and the color filter layer may include: a first color filter overlapping with the first pixel region and configured to transmit a second color light different from the first color light; a second color filter overlapping with the second pixel region and configured to transmit a third color light different from the second color light; and a third color filter overlapping with the third pixel region and configured to transmit the first color light, wherein the third color filter may include a light-filtering portion overlapping with the third pixel region and a light-blocking portion overlapping with the light-blocking region.

[0026] In an embodiment, the display panel may further include: an adhesive member overlapping with the non-display region and defining an internal space between the upper display substrate and the lower display substrate together with the upper display substrate and the lower display substrate, wherein the display panel may further include a filler in the internal space. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0028] Figure 1 is a perspective view of a display panel according to an embodiment of the present disclosure;

[0029] Figure 2 is a cross-sectional view of a display panel according to an embodiment of the present disclosure;

[0030] Figure 3 is a plan view of a display panel according to an embodiment of the present disclosure;

[0031] Figure 4A is a plan view showing pixel regions of a display area of a display panel according to an embodiment of the present disclosure;

[0032] Figure 4B is a cross-sectional view of a display panel according to an embodiment of the present disclosure, the cross-sectional view showing a part of the pixel region;

[0033] Figure 5 is a cross-sectional view of an upper display substrate according to an embodiment of the present disclosure;

[0034] Figure 6A is a plan view showing a stacked structure of an upper display substrate according to an embodiment of the present disclosure;

[0035] Figure 6B is a plan view showing a stacked structure of an upper display substrate according to an embodiment of the present disclosure;

[0036] Figure 6C is a schematic diagram showing the optical characteristics of a light control layer according to an embodiment of the present disclosure;

[0037] Figure 7 is a perspective view of a barrier layer of an upper display substrate according to an embodiment of the present disclosure;

[0038] Figure 8 is a cross-sectional view of an upper display substrate according to an embodiment of the present disclosure;

[0039] Figure 9A is a cross-sectional view of an upper display substrate according to another embodiment of the present disclosure;

[0040] Figure 9B is a perspective view of a barrier layer of an upper display substrate according to another embodiment of the present disclosure;

[0041] Figure 10 is a cross-sectional view of an upper display substrate according to another embodiment of the present disclosure; and

[0042] Figure 11 and Figure 12 is a cross-sectional view of an upper display substrate according to another embodiment of the present disclosure. Detailed Description

[0043] In this specification, it will be understood that when a component (or region, layer, part) is referred to as being "on", "connected to", or "coupled to" another component, this component can be directly "on", "connected to", or "coupled to" another component, or there can also be one or more intermediate third components.

[0044] Throughout the text, the same reference numerals refer to the same elements. Additionally, in the drawings, for clarity of illustration, the thickness, ratio, and dimensions of components may be exaggerated.

[0045] The term "and / or" includes any and all combinations of one or more of the related listed items.

[0046] It will be understood that although terms such as "first" and "second" are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one component from other components. For example, without departing from the scope of the appended claims, an element that is referred to as a first element in one embodiment may be referred to as a second element in another embodiment. Unless the context clearly indicates otherwise, singular terms may include plural forms.

[0047] In addition, terms such as "below", "beneath", "above", "over" and the like are used to explain the relationship of components shown in the drawings, and these components should not be limited by these terms. These terms may be relative concepts and may be described based on the directions expressed in the drawings.

[0048] Unless otherwise defined, all terms used herein (including technical terms and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the technical field to which the subject matter of the present disclosure pertains. Moreover, terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with their meaning in the relevant field and / or the context of the present specification, and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0049] The meaning of "comprising" or "including" specifies attributes, fixed quantities, steps, operations, elements, components, or combinations thereof, but does not exclude other attributes, fixed quantities, steps, operations, elements, components, or combinations thereof.

[0050] Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the drawings.

[0051] Figure 1 is a perspective view of a display panel according to an embodiment of the present disclosure. Figure 2 is a cross-sectional view of a display panel according to an embodiment of the present disclosure.

[0052] A display panel DP according to an embodiment of the present disclosure can be applied to large electronic devices such as monitors or external billboards, and small and medium-sized (e.g., small and medium-sized) electronic devices such as personal computers, notebook computers, personal digital terminals, car navigation units, game consoles, smart phones, tablet computers, and cameras. However, the application of the display panel DP is not limited to the above devices herein, and unless departing from the spirit and scope of the present disclosure, the display panel DP can be used in other electronic devices.

[0053] According to an embodiment of the present disclosure, the display panel DP may generate an image, and the generated image may be transmitted to an external user through a window. The display panel DP may be an organic light emitting display panel, a liquid crystal display panel, or a quantum dot light emitting display panel, but is not limited thereto. For example, the organic light emitting display panel may include organic light emitting elements. The liquid crystal display panel may include liquid crystal molecules. The quantum dot light emitting display panel may include quantum dots and quantum rods.

[0054] The display panel DP may further include a chassis member or a molding member, and when the display panel DP is a liquid crystal display panel, it may further include a backlight unit. Hereinafter, in this specification, the display panel DP as an organic light emitting display panel will be described.

[0055] Reference Figure 1 , the display panel DP may include a lower display substrate 100 and an upper display substrate 200 facing the lower display substrate 100 and spaced apart from the lower display substrate 100. As Figure 1 shown, the display panel DP may display an image through a display surface DP-IS. The display surface DP-IS may be parallel to (e.g., substantially parallel to) a surface defined by a first direction DR1 and a second direction DR2.

[0056] The display surface DP-IS may include a display area DA and a non-display area NDA. The pixel PX may be in the display area DA and may not be in the non-display area NDA. The non-display area NDA may be defined along the edge of the display surface DP-IS. According to an embodiment, the display area DA may be surrounded by the non-display area NDA. However, the present disclosure is not limited thereto. For example, the non-display area NDA may be adjacent to one side of the display area DA or may be omitted.

[0057] The normal direction of the display surface DP-IS, for example, the thickness direction of the display panel DP, may be a third direction DR3. In this specification, "when viewed on a plane or on the plane" or "in a plan view" may mean an embodiment when viewed in the third direction DR3. The front surface (or top surface) and the back surface (or bottom surface) of each layer or unit of the layers or units to be described herein below are distinguished by the third direction DR3. However, the directions indicated as the first to third directions DR1, DR2, and DR3 may be changed to different directions, such as, for example, opposite directions as relative concepts.

[0058] According to an embodiment of the present disclosure, although a display panel DP having a flat display surface DP-IS is shown, the present disclosure is not limited thereto. For example, the display panel DP may include a display surface DP-IS at least a part of which has a curved shape, or a display surface DP-IS having a solid shape on a plane. The solid display surface may include a plurality of display regions indicating different directions.

[0059] Referring Figure 2 , an internal space GP may be defined between the upper display substrate 200 and the lower display substrate 100. The internal space GP may be maintained by an adhesive member SLM between the upper display substrate 200 and the lower display substrate 100. For example, the adhesive member SLM may include an organic adhesive member or an inorganic adhesive member.

[0060] Figure 3 is a plan view of a display panel according to an embodiment of the present disclosure.

[0061] Referring Figure 3 , the display panel DP may include a gate driver circuit GDC, pixels PX11 to PXnm, and signal lines GL1 to GLn and DL1 to DLm. Figure 3 shows the planar arrangement relationship between the signal lines GL1 to GLn and DL1 to DLm and the pixels PX11 to PXnm.

[0062] On a plane, the pixels PX11 to PXnm overlap with the display region DA, and the signal lines GL1 to GLn and DLm and the gate driver circuit GDC overlap with the non-display region NDA. The signal lines GL1 to GLn and DL1 to DLm may include a plurality of gate lines GL1 to GLn and a plurality of data lines DL1 to DLm.

[0063] Each of the pixels PX11 to PXnm is respectively connected to (e.g., coupled to) a corresponding one of the plurality of gate lines GL1 to GLn and a corresponding one of the plurality of data lines DL1 to DLm. Each of the pixels PX11 to PXnm may include a pixel driving circuit and a display element. Depending on the configuration of the pixel driving circuit, more types of signal lines may be provided on the display panel DP.

[0064] The pixels PX11 to PXnm may be arranged in a matrix form, but are not limited thereto. For example, the pixels PX11 to PXnm may be arranged in a pentile form, or the pixels PX11 to PXnm may be arranged in a rhombus form.

[0065] The gate driver circuit GDC may be in the non-display area NDA. The gate driver circuit GDC may be integrated with the display panel DP by, for example, an oxide silicon gate driver circuit (OSG) process or an amorphous silicon gate driver circuit (ASG) process. However, embodiments of the present disclosure are not limited thereto, and other processes may be used to integrate the gate driver circuit GDC with the display panel DP.

[0066] Figure 4A is a plan view showing a pixel region of a display area of a display panel according to an embodiment of the present disclosure. Figure 4B is a cross-sectional view of a display panel according to an embodiment of the present disclosure, the cross-sectional view showing a part of the pixel region.

[0067] Figure 4A is showing Figure 1 a magnified view of a part of the display area DA. The display area DA may include a plurality of pixel regions and a light-shielding region NPXA adjacent to the plurality of pixel regions. In a plane, the light-shielding region NPXA may surround the pixel regions. For example, Figure 4A shows three types of pixel regions PXA-R, PXA-G, and PXA-B. Figure 4A These three types of pixel regions PXA-R, PXA-G, and PXA-B may be repeatedly arranged throughout the display area DA.

[0068] The light-shielding region NPXA may be respectively arranged around the first to third pixel regions PXA-R, PXA-G, and PXA-B. The first to third pixel regions PXA-R, PXA-G, and PXA-B and the light-shielding region NPXA may be substantially defined on the upper display substrate 200.

[0069] In this specification, the pixel region means an area through which light can actually pass through the display surface DP-IS described in the reference Figure 1 and is emitted to the outside. The pixel region may emit the received light to the outside, and the light-shielding region NPXA may absorb or reflect the received light.

[0070] Although the first to third pixel regions PXA-R, PXA-G, and PXA-B are shown Figure 4A as having the same surface area in a plane in

[0071] In addition, although the first to third pixel regions PXA-R, PXA-G, and PXA-B are shown Figure 4Aare shown as each having a rectangular shape with rounded corners, but the present disclosure is not limited thereto. For example, the first to third pixel regions PXA-R, PXA-G, and PXA-B may have other polygonal shapes on a plane. For example, each of the first to third pixel regions PXA-R, PXA-G, and PXA-B may have a square shape with rounded corners.

[0072] One of the first to third pixel regions PXA-R, PXA-G, and PXA-B may provide a user with first color light having a wavelength band corresponding to a first color, another one of the first to third pixel regions PXA-R, PXA-G, and PXA-B may provide a user with second color light having a wavelength band corresponding to a second color different from the first color, and the remaining pixels may provide a user with third color light having a wavelength band corresponding to a third color different from the first color and the second color.

[0073] For example, the first pixel region PXA-R may emit red light, the second pixel region PXA-G may emit green light, and the third pixel region PXA-B may emit blue light. According to an embodiment of the present disclosure, the source light may be blue light as the first color light. The source light may be generated in a light source such as, for example, a backlight unit, or in a display element such as, for example, a light-emitting diode.

[0074] The light-shielding region NPXA may be defined at a boundary between the first to third pixel regions PXA-R, PXA-G, and PXA-B to prevent or reduce color mixing between the first to third pixel regions PXA-R, PXA-G, and PXA-B with each other. In addition, the light-shielding region NPXA may block some or all of the source light, thereby preventing or reducing the source light provided to the user.

[0075] For example, a display panel DP according to an embodiment of the present disclosure may include a blocker overlapping with the light-shielding region NPXA. The blocker may prevent or reduce the output of light from two adjacent pixel regions with each other, and improve the light emission efficiency of the light emitted from each of the pixel regions. This will be described in more detail with reference to Figure 5 to be described in more detail.

[0076] Figure 4B is a cross-sectional view showing an example of a driving transistor T-D and a light-emitting element OLED corresponding to any one of the first to third pixel regions PXA-R, PXA-G, and PXA-B of the display panel DP. However, the structure corresponding to the pixel region is not limited thereto. For example, the pixel PX may further include a switching transistor connected to (e.g., coupled to) the driving transistor T-D. The switching transistor may be connected to (e.g., coupled to) signal lines GL1 to GLn and DL1 to DLm. In Figure 4BIn [the figure], the upper display substrate 200 is schematically shown.

[0077] Reference Figure 4B , the lower display substrate 100 includes a first base substrate BS1, a circuit element layer DP-CL on the first base substrate BS1, a display element layer DP-OLED on the circuit element layer DP-CL, and a cover layer CL.

[0078] The first base substrate BS1 may include a synthetic resin substrate or a glass substrate. The circuit element layer DP-CL may include at least one insulating layer and circuit elements. The circuit elements may include signal lines and driving circuits for pixels. The circuit element layer DP-CL may be formed by a process of forming an insulator, a semiconductor layer, and a conductive layer by coating or deposition, and a process of patterning the insulator, the semiconductor layer, and the conductive layer by a photolithography process.

[0079] In this embodiment, the circuit element layer DP-CL may include a buffer layer BFL, a first insulating layer 10, a second insulating layer 20, and a third insulating layer 30. For example, each of the first insulating layer 10 and the second insulating layer 20 may be an inorganic layer, and the third insulating layer 30 may be an organic layer. However, the present disclosure is not limited thereto. For example, each of the first insulating layer 10 and the second insulating layer 20 may be a layer in which an inorganic layer and an organic layer are mixed with each other.

[0080] Figure 4B An example of the layout relationship of a semiconductor pattern OSP, a control electrode GE, an input electrode DE, and an output electrode SE that may be included in a driving transistor T-D is shown. First vias CH1, second vias CH2, and third vias CH3 are shown exemplarily, respectively.

[0081] The display element layer DP-OLED includes a light-emitting element OLED as a display element. The light-emitting element OLED may generate the above-described source light. The light-emitting element OLED may include a first electrode AE, a second electrode CE, and a light-emitting layer ENL between the first electrode AE and the second electrode CE. In this embodiment, the light-emitting element OLED may include an organic light-emitting diode. The display element layer DP-OLED may include a pixel defining layer PDL. For example, the pixel defining layer PDL may be an organic layer.

[0082] The first electrode AE may be on the third insulating layer 30. The first electrode AE may be connected to (e.g., coupled to) the output electrode SE through the third via CH3 that penetrates the third insulating layer 30. A light-emitting opening OP may be defined in the pixel defining layer PDL. According to an embodiment of the present disclosure, the light-emitting opening OP may be defined as an area in which first color light may be emitted from the light-emitting layer ENL.

[0083] The light-emitting opening OP of the pixel defining layer PDL may expose at least a portion of the first electrode AE. According to an embodiment of the present disclosure, the light-emitting opening OP may be defined as an emission region where actual light can be emitted from the light-emitting element OLED. For example, the emission regions may be arranged in plurality, and the plurality of emission regions may respectively correspond to pixel regions.

[0084] The hole control layer HCL, the light-emitting layer ENL, and the electron control layer ECL may be commonly disposed on the first electrode AE and the pixel defining layer PDL. The hole control layer HCL, the light-emitting layer ENL, and the electron control layer ECL may be commonly disposed in the first to third pixel regions PXA-R, PXA-G, and PXA-B.

[0085] The hole control layer HCL may include a hole transport layer and may further include a hole injection layer. The light-emitting layer ENL may generate blue light. The blue light may include wavelengths between about 410 nm and about 480 nm. The emission spectrum of the blue light may have a maximum peak in the wavelength range of about 440 nm to about 460 nm. The electron control layer ECL may include an electron transport layer and may further include an electron injection layer. The light-emitting layer ENL may have a cascade structure or a single-layer structure.

[0086] The second electrode CE may be disposed on the electron control layer ECL. The second electrode CE may be commonly disposed in the first to third pixel regions PXA-R, PXA-G, and PXA-B. The second electrode CE may have a larger surface area than the surface area of the first electrode AE.

[0087] The cover layer CL may be disposed on the second electrode CE. The cover layer CL may protect the second electrode CE. The cover layer CL may include an organic material or an inorganic material. In an embodiment, the cover layer CL may be omitted.

[0088] The lower display substrate 100 may include first to third light-emitting elements corresponding to Figure 4A the first to third pixel regions PXA-R, PXA-G, and PXA-B. The first to third light-emitting elements may have the same stack structure as each other and may also have the same stack structure as Figure 4B the light-emitting element OLED.

[0089] Figure 5 is a cross-sectional view of an upper display substrate according to an embodiment of the present disclosure. Figure 6A is a plan view showing a stack structure of an upper display substrate according to an embodiment of the present disclosure. Figure 6B is a plan view showing a stack structure of an upper display substrate according to an embodiment of the present disclosure. Figure 6C is a schematic diagram showing the light characteristics of a light control layer according to an embodiment of the present disclosure.

[0090] Reference Figure 5 , on the upper display substrate 200, there may be included a second base substrate BS2, first to third color filters CF-R, CF-G, and CF-B, an upper insulating layer IL, a first light control layer CCL, a first capping layer OC1, a second capping layer OC2, and a second light control layer ML.

[0091] The first to third color filters CF-R, CF-G, and CF-B may be on (e.g., under) the second base substrate BS2. In the present specification, the first to third color filters CF-R, CF-G, and CF-B may be defined as components provided in the color filter layer. According to an embodiment, the first to third color filters CF-R, CF-G, and CF-B may be directly on (e.g., under) the second base substrate BS2.

[0092] In the present specification, "component A is directly on (e.g., under) component B" may mean that there is no bonding member between component A and component B. For example, the first to third color filters CF-R, CF-G, and CF-B may be directly on (e.g., under) the second base substrate BS2 without using an adhesive layer.

[0093] The first color filter CF-R may overlap with the first pixel region PXA-R to transmit light having a wavelength band corresponding to a second color different from the first color and may absorb light having other wavelength bands. For example, the second color may be red. The second color filter CF-G may overlap with the second pixel region PXA-G to transmit light having a wavelength band corresponding to a third color different from the second color and may absorb light having other wavelength bands. For example, the third color may be green. The third color filter CF-B may overlap with the third pixel region PXA-B to transmit light having a wavelength band corresponding to the first color and may absorb light having other wavelength bands.

[0094] According to an embodiment of the present disclosure, the first to third color filters CF-R, CF-G, and CF-B overlapping with the display area DA may be separated by a light shielding layer SHD or a light shielding portion BP2.

[0095] According to an embodiment of the present disclosure, the third color filter CF-B may have a refractive index similar to that of the second substrate BS2 rather than the refractive index of each of the first color filter CF-R and the second color filter CF-G. As a result, external light introduced from the outside may pass through the second substrate BS2 and then be incident on the third color filter CF-B. Accordingly, external light reflection occurring at the interface between the second substrate BS2 and the third color filter CF-B may be reduced. However, the present disclosure is not limited thereto. For example, each of the first to third color filters CF-R, CF-G, and CF-B may have a refractive index similar to that of the second substrate BS2.

[0096] The third color filter CF-B may be divided into a light filtering portion BP1 that serves as a color filter and a light shielding portion BP2 that performs a light shielding function. The light filtering portion BP1 may overlap with the third pixel region PXA-B, and the light shielding portion BP2 may overlap with the light shielding region NPXA.

[0097] More specifically, referring to Figure 6A , an organic layer having a blue color may be on one surface (e.g., below) of the second substrate BS2, and the third color filter CF-B having a first opening B-OP1 and a second opening B-OP2 may be defined. For example, the light filtering portion BP1 and the light shielding portion BP2 may be included in a single body.

[0098] Referring to Figure 6B , the first color filter CF-R may be located in the first opening B-OP1 defined in the third color filter CF-B. In a plane, the first color filter CF-R may completely cover (e.g., overlap with) the first opening B-OP1 and may be on at least a part (e.g., below) of the light shielding portion BP2. The second color filter CF-G may be located in the second opening B-OP2 defined in the third color filter CF-B. In a plane, the second color filter CF-G may completely cover (e.g., overlap with) the second opening B-OP2 and may be on at least a part (e.g., below) of the light shielding portion BP2.

[0099] Referring again to Figure 5, the light-shielding layer SHD can be on the light-shielding portion BP2 of the third color filter CF-B (e.g., below it). Each of a part of the first color filter CF-R and a part of the second color filter CF-G can cover a part of the light-shielding layer SHD. The edge of the first color filter CF-R and the light-shielding layer SHD can absorb some or all of the external light transmitted through the light-shielding portion BP2 to prevent or reduce color mixing between the first to third pixel regions PXA-R, PXA-G, and PXA-B. Additionally, the light-shielding layer SHD can absorb a part of the light output from the first light control layer CCL.

[0100] The upper insulating layer IL can cover the first to third color filters CF-R, CF-G, and CF-B and can be on the second substrate BS2 (e.g., below it). For example, the upper insulating layer IL can be an inorganic layer.

[0101] The first light control layer CCL can be on the upper insulating layer IL (e.g., below it) to control the first color light emitted from the Figure 4B display element layer DP-OLED shown. For example, the first light control layer CCL can receive the first color light to convert the first color light into light of a different color or transmit the first color light as it is.

[0102] The first light control layer CCL can include a first conversion portion CCF-R, a second conversion portion CCF-G, and a transmission portion CCF-B. The first conversion portion CCF-R can overlap with the first pixel region PXA-R to convert the first color light into a second color light different from the first color light and can emit the second color light. The second conversion portion CCF-G can overlap with the second pixel region PXA-G to convert the first color light into a third color light different from the second color light and can emit the third color light. The transmission portion CCF-B can overlap with the third pixel region PXA-B to transmit the first color light.

[0103] More specifically, referring to Figure 6C , the first conversion portion CCF-R can include a first light-emitting material EP-R. The first light-emitting material EP-R can absorb the first color light (e.g., blue light) and can emit the second color light (e.g., red light). The second conversion portion CCF-G can include a second light-emitting material EP-G. The second light-emitting material EP-G can absorb the first color light and can emit the third color light (e.g., green light). The transmission portion CCF-B can be a portion that does not include a light-emitting material. The transmission portion CCF-B can be a portion that transmits the first color light.

[0104] Moreover, each of the first conversion part CCF-R, the second conversion part CCF-G, and the transmissive part CCF-B may include a base resin BR. The base resin BR may be a polymer resin. For example, the base resin BR may include an acrylic resin, a urethane resin, a silicone resin, and / or an epoxy resin. The base resin BR may be a transparent resin.

[0105] Moreover, each of the first conversion part CCF-R, the second conversion part CCF-G, and the transmissive part CCF-B may include scattering particles OL. The scattering particles OL may be TiO2 or silica-based nanoparticles. The scattering particles OL may scatter the light emitted from the light-emitting material to emit the light to the outside of the conversion part. Additionally, when the transmissive part CCF-B transmits light as it is, the scattering particles OL may scatter the provided light to emit the light to the outside.

[0106] Each of the first light-emitting material EP-R and the second light-emitting material EP-G (which may also be referred to as a light-emitting material) that may be included in the first light control layer CCL may be a phosphor or a quantum dot. For example, according to an embodiment, the first light control layer CCL may include at least one of a phosphor and a quantum dot of the first light-emitting material EP-R and the second light-emitting material EP-G.

[0107] For example, the phosphor that may be used as the light-emitting materials EP-R and EP-G may be an inorganic phosphor. In some embodiments, according to an embodiment, the phosphor that may be used as the light-emitting materials EP-R and EP-G may be a green phosphor or a red phosphor.

[0108] However, according to an embodiment, the type of phosphor used in the first light control layer CCL is not limited to the phosphor materials described above herein. For example, any suitable phosphor material commonly used in the art may be used in addition to those described above herein.

[0109] Again, for example, the light-emitting materials EP-R and EP-G that may be included in the first light control layer CCL may be quantum dots. The core of the quantum dot may be selected from group II-VI compounds, group III-V compounds, group IV-VI compounds, group IV elements, group IV compounds, and combinations thereof.

[0110] II-VI compounds may be selected from: binary compounds selected from the group consisting of CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, MgS, and any combination thereof; ternary compounds selected from the group consisting of AgInS, CuInS, CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe, MgZnS, and any combination thereof; and quaternary compounds selected from the group consisting of HgZnTeS, CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, HgZnSTe, and any combination thereof.

[0111] III-V compounds may be selected from: binary compounds selected from the group consisting of GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb, and any combination thereof; ternary compounds selected from the group consisting of GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InGaP, InNP, InNAs, InNSb, InPAs, InPSb, and any combination thereof; and quaternary compounds selected from the group consisting of GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb, and any combination thereof.

[0112] The group-IV to VI compounds may be selected from: binary compounds selected from the group consisting of SnS, SnSe, SnTe, PbS, PbSe, PbTe, and any combination thereof; ternary compounds selected from the group consisting of SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe, and any combination thereof; and quaternary compounds selected from the group consisting of SnPbSSe, SnPbSeTe, SnPbSTe, and any combination thereof. The group-IV element may be selected from the group consisting of Si, Ge, and any combination thereof. The group-IV compound may be a binary compound selected from the group consisting of SiC, SiGe, and any combination thereof.

[0113] In one embodiment, the binary, ternary, and quaternary compounds may be present in the quantum dots in a uniform or substantially uniform concentration, or may be present in the quantum dots in a state where the concentration distribution is divided into partially different states. In another embodiment, the quantum dots may have a core / shell structure, where one quantum dot surrounds another. The interface between the core and the shell may have a concentration gradient, where the elements present in the shell have a gradually decreasing concentration in a direction towards the center (e.g., the center of the core).

[0114] In some embodiments, the quantum dots may have a core-shell structure that includes a core containing the compounds (e.g., nanocrystals) of the quantum dots described above herein, and a shell surrounding the core. The shell of the quantum dot may serve as a protective layer that prevents or reduces chemical changes to the core to maintain semiconductor properties, and / or may serve as a charge layer that is used to impart electrophoretic properties to the quantum dots. The shell may be a single layer or multiple layers. The interface between the core and the shell may have a concentration gradient, where the elements present in the shell have a gradually decreasing concentration towards the center. For example, the shell of the quantum dot may include oxides of metals or non-metals, semiconductor compounds, or combinations thereof.

[0115] For example, the oxides of metals or non-metals may include binary compounds such as SiO2, Al2O3, TiO2, ZnO, MnO, Mn2O3, Mn3O4, CuO, FeO, Fe2O3, Fe3O4, CoO, Co3O4, NiO, etc., or ternary compounds such as MgAl2O4, CoFe2O4, NiFe2O4, CoMn2O4, etc., but the present disclosure is not limited thereto.

[0116] In some embodiments, the semiconductor compound may include CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnSeS, ZnTeS, GaAs, GaP, GaSb, HgS, HgSe, HgTe, InAs, InP, InGaP, InSb, AlAs, AlP, AlSb, etc., but the present disclosure is not limited thereto.

[0117] The quantum dots may have a full width at half maximum (FWHM) of the emission wavelength spectrum of about 45 nm or less, about 40 nm or less, or for example about 30 nm or less. Within these ranges, color purity and color reproducibility can be improved. Moreover, the light emitted by the quantum dots can be emitted in all directions to improve the optical viewing angle.

[0118] Moreover, the quantum dots may have any suitable shape commonly used in the art and are not particularly limited in shape. In some embodiments, the quantum dots may have a spherical shape, a pyramid shape, a multi-arm shape, a cubic nanoparticle shape, a nanotube shape, a nanowire shape, a nanofiber shape, a nanoplate particle shape, etc.

[0119] The quantum dots can adjust the color of the emitted light according to the size of the quantum dots. For example, the quantum dots can emit light of various suitable colors such as blue, red, and green.

[0120] Referring again to Figure 5 , as described above herein, the first color light emitted from the display element layer DP-OLED through the first light control layer CCL can be converted into light of a different color, or can be emitted as it is to the outside through the second substrate BS2.

[0121] The first light control layer CCL may emit gas in a high-temperature and high-humidity environment, which can be higher than a set or predetermined temperature and humidity. The gas emitted by the first light control layer CCL may be affected by various materials contained in the first light control layer CCL. For example, when Figure 6C the base resin BR is exposed to a high-temperature environment for a set or predetermined time or longer, gas may be discharged from the base resin BR and penetrate into the internal space GP between the lower display substrate 100 and the upper display substrate 200. In this embodiment, due to the expansion of the internal space GP, each of the first substrate BS1 and the second substrate BS2 may be deformed in shape.

[0122] According to an embodiment of the present disclosure, the capping layers OC1 and OC2 may be on (e.g., under) the first light control layer CCL. For example, the capping layers OC1 and OC2 according to an embodiment of the present disclosure may include an organic layer and an inorganic layer, which are provided as different layers from each other. As a result, the capping layers OC1 and OC2 may prevent or reduce the penetration of gases discharged from the first light control layer CCL into the internal space GP. For example, the capping layers OC1 and OC2 may prevent or reduce the penetration of gases discharged from the first light control layer CCL into the internal space GP to prevent or reduce the deformation of the display panel DP caused by the gases.

[0123] Hereinafter, the capping layers OC1 and OC2 will be described in more detail. The capping layers OC1 and OC2 may include a first capping layer OC1 and a second capping layer OC2.

[0124] The first capping layer OC1 may completely cover the first light control layer CCL (e.g., cover its bottom surface), and may be on (e.g., under) the upper insulating layer IL. The first capping layer OC1 may overlap each of the pixel regions PXA-R, PXA-G, and PXA-B and the light shielding region NPXA in the display region DA. Moreover, the first capping layer OC1 may overlap the non-display region NDA. The first capping layer OC1 according to an embodiment of the present disclosure may include an inorganic material. In this specification, the first capping layer OC1 may be described as a sub-capping layer.

[0125] The second capping layer OC2 may be on (e.g., under) the first capping layer OC1. The second capping layer OC2 may overlap each of the pixel regions PXA-R, PXA-G, and PXA-B and the light shielding region NPXA in the display region DA. Additionally, the second capping layer OC2 may also overlap the non-display region NDA. The second capping layer OC2 according to an embodiment of the present disclosure may include an organic material.

[0126] According to an embodiment of the present disclosure, the second capping layer OC2 may be directly on (e.g., under) the first capping layer OC1. Additionally, the second capping layer OC2 may have a greater thickness than the thickness of the first capping layer OC1 in the third direction DR3, which is the thickness direction of the second substrate BS2.

[0127] In another embodiment of the present disclosure, the first capping layer OC1 may be omitted. In this embodiment, the second capping layer OC2 may cover the first light control layer CCL (e.g., cover its bottom surface) to prevent or reduce the penetration of gases discharged from the first light control layer CCL into the internal space GP. Additionally, when the first capping layer OC1 is omitted, according to some embodiments of the present disclosure, the second capping layer OC2 may be an organic layer.

[0128] The second light control layer ML may be on the second capping layer OC2 that overlaps with the light-shielding region NPXA (e.g., on the bottom surface of a part of the second capping layer OC2 that overlaps with the light-shielding region NPXA). The second light control layer ML may reflect or absorb the first color light emitted from the display element layer DP-OLED. For example, the second light control layer ML may be a reflective layer that reflects light or a light-shielding layer that absorbs light. The second light control layer ML may prevent or reduce the mixing of light emitted to the outside through the upper display substrate 200.

[0129] For example, Figure 5 the second light control layer ML may be a reflective layer.

[0130] According to an embodiment of the present disclosure, the second light control layer ML may completely overlap with the light-shielding region NPXA. However, the present disclosure is not limited thereto. According to another embodiment, the second light control layer ML may partially overlap with the light-shielding region NPXA.

[0131] In addition, according to an embodiment of the present disclosure, the second capping layer OC2 and the second light control layer ML on the second capping layer OC2 may be spaced apart from the lower display substrate 100 by a set or predetermined distance SP. An internal space GP may be defined between the second capping layer OC2 and the lower display substrate 100.

[0132] As described above herein, the first capping layer OC1 and the second capping layer OC2 may be in contact with each other to prevent or reduce the penetration of gas discharged from the first light control layer CCL into the internal space GP. Hereinafter, reference will be made to Figure 7 to describe the structures of the second capping layer OC2 and the second light control layer ML in more detail.

[0133] Figure 7 is a perspective view of a barrier layer of an upper display substrate according to an embodiment of the present disclosure. Figure 8 is a cross-sectional view of an upper display substrate according to an embodiment of the present disclosure.

[0134] Reference Figure 5 and Figure 7 , the first capping layer OC1 may be an inorganic layer that completely covers the first light control layer CCL (e.g., covering the entire bottom surface of the first light control layer CCL). The second capping layer OC2 may be an organic layer and may be directly on the first capping layer OC1 (e.g., below it).

[0135] For example, the second capping layer OC2 may include a blocking portion OC2-M that overlaps with an absorption portion OC2-H on the first capping layer OC1 (e.g., below it) and the light-shielding region NPXA, and the blocking portion OC2-M protrudes from the absorption portion OC2-H in the third direction DR3.

[0136] The light absorption portion OC2-H may include a first light absorption portion OC2-H1 and a second light absorption portion OC2-H2. The first light absorption portion OC2-H1 may overlap with the light shielding region NPXA, and may be between the first conversion portion CCF-R and the second conversion portion CCF-G, between the second conversion portion CCF-G and the transmission portion CCF-B, and between the transmission portion CCF-B and the first conversion portion CCF-R. The second light absorption portion OC2-H2 may overlap with each of the display regions DA, such as pixel regions PXA-R, PXA-G, and PXA-B, and the light shielding region NPXA. The second light absorption portion OC2-H2 may cover the first light absorption portion OC2-H1 (e.g., cover its bottom surface), and may be on the first light control layer CCL (e.g., below it).

[0137] The light blocking portion OC2-M may overlap with the light shielding region NPXA, and may have a shape protruding from the second light absorption portion OC2-H2. The second light control layer ML may be on the light blocking portion OC2-M (e.g., on its bottom surface). The second light control layer ML may be on the light blocking portion OC2-M (e.g., on its bottom surface) to prevent or reduce the mixing of light emitted to the outside through the upper display substrate 200. For example, the second light control layer ML may prevent the first color light emitted from one light emitting element OLED from transmitting to another pixel region in the pixel region that does not overlap with this light emitting element OLED (or may reduce such transmission of the first color light).

[0138] The second light control layer ML according to an embodiment of the present disclosure may be a reflective layer including a metal material. Moreover, the second light control layer ML may be on the entire outer surface of the light blocking portion OC2-M. As Figure 8 shown, the first color light LT emitted from the display element layer DP-OLED of the lower display substrate 100 may transmit to the second light control layer ML. In this embodiment, the second light control layer ML may reflect the first color light LT so as to transmit to the first light control layer CCL. Therefore, the overall emission efficiency of the display panel DP can be improved.

[0139] In addition, as Figure 8 shown, the gas GS discharged from the first light control layer CCL may be prevented or reduced from penetrating into the internal space GP by the first capping layer OC1 and the second capping layer OC2. For example, in Figure 8 the display panel DP, the filler CGH may be in the internal space GP between the lower display substrate 100 and the upper display substrate 200.

[0140] Referring again to Figure 7, the blocking portion OC2-M may include a first outer surface and a second outer surface that face each other in one direction and are connected to (e.g., coupled to) the second absorption portion OC2-H2, and a bottom surface that connects (e.g., couples) the first outer surface to the second outer surface. The second light control layer ML may include a first reflection portion Ma on the first outer surface of the blocking portion OC2-M, a second reflection portion Mb on the second outer surface of the blocking portion OC2-M, and a third reflection portion Mc on the bottom surface of the blocking portion OC2-M.

[0141] According to an embodiment of the present disclosure, the first absorption portion OC2-H1, the second absorption portion OC2-H2, and the blocking portion OC2-M may be made of the same (e.g., substantially the same) material and may be integrated with each other. For example, an organic layer may be formed on the first capping layer OC1 and then exposed and developed to form the first absorption portion OC2-H1, the second absorption portion OC2-H2, and the blocking portion OC2-M. For example, to form the blocking portion OC2-M, the exposure time required for the organic layer overlapping the pixel regions PXA-R, PXA-G, and PXA-B may be longer than the exposure time for the organic layer overlapping the light-shielding region NPXA.

[0142] According to an embodiment of the present disclosure, each of the first absorption portion OC2-H1 and the second absorption portion OC2-H2, which may be an organic layer, may have a greater thickness than the first capping layer OC1, which may be an inorganic layer. Additionally, as Figure 5 shown, the blocking portion OC2-M may have a greater thickness DHb than the thickness DHa of the second absorption portion OC2-H2.

[0143] Figure 9A is a cross-sectional view of an upper display substrate according to another embodiment of the present disclosure. Figure 9B is a perspective view of a blocking layer of an upper display substrate according to another embodiment of the present disclosure.

[0144] Except that the structure of the second light control layer ML-1 may be modified, Figure 9A and Figure 9B the display panel DP may be substantially the same as Figure 5 and Figure 7 the display panel DP. Therefore, for ease of description, reference will be made to Figure 9A and Figure 9B to mainly describe the configuration of the second light control layer ML-1.

[0145] According to an embodiment of the present disclosure, the second light control layer ML-1 may not completely overlap with the light-shielding region NPXA, but the second light control layer ML-1 may partially overlap with the light-shielding region NPXA.

[0146] ReferenceFigure 9B , the second light control layer ML-1 may include a first reflection portion M1a on the first outer surface of the blocking portion OC2-M and a second reflection portion M1b on the second outer surface of the blocking portion OC2-M. According to some embodiments of the present disclosure, at least a portion of the blocking portion OC2-M may be exposed to the internal space GP from the second light control layer ML-1 (e.g., the reflection layer). More specifically, the bottom surface of the blocking portion OC2-M that can connect (e.g., couple) the first outer surface and the second outer surface of the blocking portion OC2-M may face the lower display substrate 100 and may be exposed to the internal space GP.

[0147] Figure 10 is a cross-sectional view of an upper display substrate according to another embodiment of the present disclosure.

[0148] Except that the structures of the blocking portion OC2-M1 and the second light control layer ML-2 may be modified, Figure 10 the display panel DP of Figure 5 may be substantially the same as the display panel DP of Figure 10 Therefore, for ease of description, the configurations of the blocking portion OC2-M1 and the second light control layer ML-2 will be mainly described with reference to

[0149] According to an embodiment of the present disclosure, at least a portion of the second light control layer ML-2 may contact the lower display substrate 100. For example, the second light control layer ML-2 may contact the cover layer CL of the lower display substrate 100. Referring to Figure 10 , the portion of the second light control layer ML-2 that may be located on the bottom surface of the blocking portion OC2-M1 may contact the cover layer CL.

[0150] According to another embodiment of the present disclosure, when the bottom surface of the blocking portion OC2-M1 described with reference to Figure 10 is exposed to the outside through the second light control layer ML-2, the bottom surface of the blocking portion OC2-M1 may contact the cover layer CL.

[0151] Figure 11 and Figure 12 are cross-sectional views of an upper display substrate according to another embodiment of the present disclosure.

[0152] Except that the structure of the second light control layer ML-3 may be modified, Figure 11 and Figure 12 the display panel DP of Figure 5 may be substantially the same as the display panel DP of Figure 11 and Figure 12 Therefore, for ease of description, the configuration of the second light control layer ML-3 will be mainly described with reference to

[0153] According to an embodiment of the present disclosure, the second light control layer ML-3 may be a light-absorbing light-shielding layer. For example, the second light control layer ML-3 may be a light-shielding layer capable of absorbing the first color light LT. For example, the second light control layer ML-3 may have a black or yellow color. However, the present disclosure is not limited thereto. For example, the second light control layer ML-3 may have various suitable colors capable of absorbing the first color light LT.

[0154] As Figure 12 shown, the first color light LT emitted from the lower display substrate 100 may be absorbed by the second light control layer ML-3. As a result, the first color light LT emitted from one light-emitting element OLED that may penetrate into another pixel region not overlapping with this light-emitting element OLED in the pixel region can be prevented or reduced by the second light control layer ML-3.

[0155] According to an embodiment of the present disclosure, the capping layers OC1 and OC2 may be on the first light control layer CCL (e.g., on its bottom surface). The capping layers OC1 and OC2 may prevent or reduce the penetration of the gas GS discharged from the first light control layer CCL into the internal space GP. For example, by the capping layers OC1 and OC2, the gas GS discharged from the first light control layer CCL that may penetrate into the internal space GP and thus deform the display panel DP can be prevented or reduced.

[0156] As described above, embodiments are disclosed in the drawings and the specification. Although specific terms are used, they are not used to limit the meaning and scope of the embodiments of the present disclosure described in the claims, but only to explain the embodiments of the present disclosure. Therefore, those of ordinary skill in the art will understand from the above that various modifications and other equivalent or substantially equivalent embodiments are also feasible. Therefore, the actual protection scope of the embodiments of the present disclosure should be determined by the scope of the appended claims.

Claims

1. A display panel, comprising: An upper display substrate, including a display area and a non-display area adjacent to the display area, wherein the display area includes a plurality of pixel areas and a light-shielding area adjacent to the plurality of pixel areas; and A lower display substrate, facing the upper display substrate to emit first color light, the lower display substrate including a plurality of display elements respectively overlapping with the plurality of pixel areas, Wherein the upper display substrate includes: A base substrate; A first light control layer, on the base substrate to control the first color light; A cover layer, including an absorption portion overlapping with the display area and on the first light control layer, and a blocking portion overlapping with the light-shielding area and protruding from the absorption portion in the thickness direction of the base substrate; and A second light control layer, on the blocking portion, Wherein the absorption portion includes: A first absorption portion, overlapping with the light-shielding area; and A second absorption portion, configured to cover the first absorption portion.

2. The display panel according to claim 1, further comprising a sub-cover layer between the first light control layer and the cover layer, Wherein the sub-cover layer completely covers the first light control layer.

3. The display panel according to claim 2, wherein the cover layer is directly on the sub-cover layer.

4. The display panel according to claim 2, wherein the sub-cover layer includes an inorganic material, and The cover layer includes an organic material.

5. The display panel according to claim 2, wherein the absorption portion has a thickness greater than the thickness of the sub-cover layer in the thickness direction.

6. The display panel according to claim 1, wherein the plurality of pixel areas include a first pixel area, a second pixel area, and a third pixel area arranged in one direction, and The first light control layer includes: A first conversion portion, overlapping with the first pixel area, and configured to convert the first color light to emit a second color light different from the first color light; A second conversion portion, overlapping with the second pixel area, and configured to convert the first color light to emit a third color light different from the second color light; And A transmissive portion, overlapping with the third pixel area, and configured to transmit the first color light.

7. The display panel according to claim 6, wherein The first absorption portion is between the first conversion portion and the second conversion portion, between the second conversion portion and the transmissive portion, and between the first conversion portion and the transmissive portion, Wherein the second absorption portion overlaps with the display area and is on the first light control layer, and Wherein the blocking portion protrudes from the second absorption portion.

8. The display panel according to claim 7, wherein the blocking portion has a thickness greater than the thickness of the second absorption portion in the thickness direction.

9. The display panel according to claim 1, wherein the blocking portion is spaced apart from the lower display substrate by a predetermined distance.

10. The display panel according to claim 9, wherein the second light control layer is a reflective layer including a metal material configured to reflect the first color light.

11. The display panel according to claim 10, wherein the reflective layer is on the entire outer surface of the blocking portion.

12. The display panel according to claim 10, wherein the blocking portion includes: a first outer surface and a second outer surface, facing each other and connected to the absorption portion; and a bottom surface configured to connect the first outer surface to the second outer surface, and the reflective layer is on the first outer surface and the second outer surface.

13. The display panel according to claim 12, wherein the bottom surface of the blocking portion is exposed from the second light control layer to face the lower display substrate.

14. The display panel according to claim 1, wherein at least a portion of the second light control layer contacts the lower display substrate.

15. The display panel according to claim 14, wherein the lower display substrate includes: a lower base substrate; a display element layer on the lower base substrate and including the display elements; and a cover layer configured to cover the display element layer, wherein the second light control layer contacts the cover layer.

16. The display panel according to claim 1, wherein the second light control layer is a light-shielding layer configured to absorb the first color light.

17. The display panel according to claim 16, wherein the light-shielding layer is provided on the entire outer surface of the blocking portion.

18. The display panel according to claim 1, further comprising a color filter layer between the base substrate and the first light control layer.

19. The display panel according to claim 18, wherein the plurality of pixel regions include a first pixel region, a second pixel region, and a third pixel region arranged in one direction, and the color filter layer includes: a first color filter overlapping with the first pixel region and configured to transmit a second color light different from the first color light; a second color filter overlapping with the second pixel region and configured to transmit a third color light different from the second color light; and a third color filter overlapping with the third pixel region and configured to transmit the first color light, wherein the third color filter includes a filter portion overlapping with the third pixel region and a light-shielding portion overlapping with the light-shielding region.

20. The display panel according to claim 1, further comprising: an adhesive member overlapping with the non-display region and defining an internal space between the upper display substrate and the lower display substrate together with the upper display substrate and the lower display substrate, wherein the display panel further includes a filler in the internal space.

Images