Display device, method of manufacturing the same, and electronic device including the same

Abstract

The invention relates to a display device, a manufacturing method of the display device, and an electronic device including the display device. The display device includes: a display layer; a light control layer on the display layer and including a bank and a color conversion layer, the light control layer further including an opening in which the bank is not positioned; a color filter layer on the light control layer and including a color filter and a light blocking structure; and a spacer between the bank and the light blocking structure and partially overlapping the opening.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2024-0066849, filed on May 23, 2024, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference. Technical Field

[0003] This disclosure relates to display devices, methods of manufacturing display devices, and electronic devices including display devices. Background Technology

[0004] With the development of information technology, the importance of display devices as the connection medium between users and information has become increasingly prominent. Therefore, the use of display devices such as liquid crystal displays (LCDs) and organic light-emitting diode (OLEDs) is increasing.

[0005] A display device can be formed by joining a display panel, in which pixel circuitry and light-emitting elements are located, to an optical panel, in which color filters are disposed. During the process of joining the display panel and the optical panel, the pixel circuitry and / or light-emitting elements may be damaged, or the color filters may be damaged. To prevent this, the display panel and / or optical panel may include spacers.

[0006] The information disclosed in this background section is only intended to enhance the understanding of the background technology of the present invention, and therefore may contain information that does not constitute prior art. Summary of the Invention

[0007] This disclosure relates to a display device in which damage to the layers forming the display device can be prevented or significantly reduced, a method of manufacturing the display device, and an electronic device including the display device.

[0008] According to some embodiments of the present disclosure, a display device is provided, comprising: a display layer; a light control layer on the display layer and including a dam and a color conversion layer, the light control layer further including an opening, the dam not positioned in the opening; a color filter layer on the light control layer and including a color filter and a light blocking structure; and a spacer between the dam and the light blocking structure and partially overlapping the opening.

[0009] In some implementations, the diameter of the spacer is greater than the width of the embankment that overlaps with the spacer.

[0010] In some embodiments, in a cross-sectional view, the length of the upper surface of the spacer is longer than the length of the lower surface of the spacer.

[0011] In some embodiments, the spacer has an inverted trapezoidal shape in the cross-sectional view.

[0012] In some embodiments, the upper surface of the spacer is adjacent to the color filter layer, and the lower surface of the spacer is adjacent to the embankment.

[0013] In some implementations, in a cross-sectional view, the center of the spacer coincides with the center of the embankment that overlaps with the spacer.

[0014] In some embodiments, the display device further includes: a subpixel region from which light of a certain color is emitted; and a non-subpixel region outside the subpixel region, wherein the subpixel region includes a first subpixel region from which light of a first color is emitted, a second subpixel region from which light of a second color is emitted, and a third subpixel region from which light of a third color is emitted, and wherein, when viewed in a plan view, the opening has a first opening overlapping the first subpixel region, a second opening overlapping the second subpixel region, and a third opening overlapping the third subpixel region.

[0015] In some implementations, a portion of the first opening, a portion of the second opening, and a portion of the third opening overlap with a non-subpixel region.

[0016] According to some embodiments of the present disclosure, a display device is provided, comprising: a display layer; a light control layer on the display layer and including a dam and a color conversion layer, the light control layer further including an opening, the dam not positioned in the opening; a color filter layer on the light control layer and including a color filter and a light blocking structure; and a spacer between the dam and the light blocking structure, a portion of the upper surface of the spacer overlapping the light blocking structure, and a portion of the lower surface of the spacer overlapping the opening.

[0017] In some implementations, the diameter of the spacer is greater than the width of the embankment that overlaps with the spacer.

[0018] In some embodiments, in a cross-sectional view, the length of the upper surface of the spacer is longer than the length of the lower surface of the spacer.

[0019] In some embodiments, the upper surface of the spacer is adjacent to the color filter layer, and the lower surface of the spacer is adjacent to the embankment.

[0020] In some implementations, in a cross-sectional view, the center of the spacer coincides with the center of the embankment that overlaps with the spacer.

[0021] In some implementations, the display layer includes light-emitting elements that provide light to the light-emitting area, which overlaps with the color filter and color conversion layer when viewed in a plan view, and a portion of the spacer overlaps with the light-emitting area.

[0022] In some implementations, the filler layer is located between the light control layer and the color filter layer, and the filler layer and the spacer have the same refractive index.

[0023] According to some embodiments of the present disclosure, a method for manufacturing a display device is provided, comprising: manufacturing a first panel; manufacturing a second panel; and inserting a filler layer between the first panel and the second panel, and joining the first panel and the second panel, wherein manufacturing the first panel comprises: forming a color filter layer including a color filter and a light blocking structure on a first base layer; and forming a spacer on the light blocking structure.

[0024] In some embodiments, manufacturing the second panel includes: positioning a light-emitting element layer including light-emitting elements on a second base layer; and positioning a light control layer including a dam protruding in the thickness direction of the second base layer and a color conversion layer including quantum dots in a region surrounded by the dam.

[0025] In some embodiments, joining the first panel and the second panel includes joining the first panel and the second panel such that the center of the embankment and the center of the spacer coincide in a cross-sectional view.

[0026] In some implementations, the diameter of the spacer is greater than the width of the embankment that overlaps with the spacer.

[0027] In some embodiments, the upper surface of the spacer is adjacent to the first panel and the lower surface of the spacer is adjacent to the second panel, and in a cross-sectional view, the length of the upper surface of the spacer is longer than the length of the lower surface of the spacer.

[0028] According to some embodiments of this disclosure, an electronic device is provided. The electronic device includes a processor for providing image data signals and a display device for displaying an image based on the image data signals. The display device includes: a display layer; a light control layer on the display layer and including a dam and a color conversion layer, the light control layer further including an opening, the dam not positioned in the opening; a color filter layer on the light control layer and including a color filter and a light-blocking structure; and a spacer between the dam and the light-blocking structure and partially overlapping the opening.

[0029] In some implementations, the diameter of the spacer is greater than the width of the embankment that overlaps with the spacer.

[0030] In some embodiments, in a cross-sectional view, the length of the upper surface of the spacer is longer than the length of the lower surface of the spacer.

[0031] In some embodiments, the spacer has an inverted trapezoidal shape in the cross-sectional view.

[0032] According to some embodiments of the present disclosure, a display device and a method of manufacturing the same may be provided in which damage to the layers forming the display device can be prevented or significantly reduced.

[0033] According to some embodiments of this disclosure, a display device with improved process convenience can be provided.

[0034] According to some embodiments of this disclosure, a display device with high resolution and improved display quality, and a method for manufacturing the same, can be provided. Attached Figure Description

[0035] Figure 1 A schematic top view of a display device according to some embodiments of the present disclosure is shown.

[0036] Figure 2 A schematic cross-sectional view of a display device according to some embodiments of the present disclosure is shown.

[0037] Figure 3 A schematic diagram of a display layer according to some embodiments of the present disclosure is shown.

[0038] Figures 4 to 6 A schematic top view of a display device according to some embodiments of the present disclosure is shown.

[0039] Figure 7 Some embodiments according to this disclosure are shown along Figures 4 to 6 A schematic cross-sectional view taken by line A-A'.

[0040] Figures 8 to 10 A schematic top view of a display device according to some other embodiments of the present disclosure is shown.

[0041] Figure 11 Along some other embodiments according to this disclosure are shown. Figures 8 to 10 A schematic cross-sectional view taken by line B-B'.

[0042] Figure 12 A flowchart illustrating a method for manufacturing a display device according to some embodiments of the present disclosure is shown.

[0043] Figure 13 Some embodiments according to this disclosure are shown. Figure 12 A flowchart of the process for manufacturing the first panel.

[0044] Figure 14 and Figure 15 Some embodiments according to this disclosure are shown. Figure 13 A schematic diagram of the manufacturing process of the display device.

[0045] Figure 16 Some embodiments according to this disclosure are shown. Figure 12 A flowchart of the process for manufacturing the second panel.

[0046] Figure 17 and Figure 18 Some embodiments according to this disclosure are shown. Figure 16 A schematic diagram of the manufacturing process of the display device.

[0047] Figure 19 Some embodiments according to this disclosure are shown. Figure 12 A schematic diagram of the process of joining the first panel and the second panel.

[0048] Figure 20 A block diagram of a display device according to an embodiment is shown.

[0049] Figure 21 This is a block diagram of an electronic device according to an embodiment.

[0050] Figure 22 Schematic diagrams illustrating various embodiments of the electronic device are shown. Detailed Implementation

[0051] Because this disclosure can be modified and taken in various forms, the embodiments will be described and detailed below. However, this is by no means intended to limit the invention to the specific embodiments, and should be understood to cover all changes, equivalents, and substitutions included within the spirit and scope of this disclosure.

[0052] It will be understood that although the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, layers, and / or portions should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, or portion from another element, component, region, layer, or portion. Therefore, without departing from the spirit and scope of the inventive concept, the first element, first component, first region, first layer, or first portion discussed below may be referred to as a second element, second component, second region, second layer, or second portion.

[0053] For ease of description, spatial relative terms such as “below,” “under,” “down,” “below,” “above,” and “above” may be used herein to describe the relationship between one element or feature and another element(s) as shown in the accompanying drawings. It will be understood that, in addition to the orientations depicted in the drawings, the spatial relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as “below,” “under,” or “below” other elements or features will subsequently be oriented “above” other elements or features. Thus, the exemplary terms “below” and “below” can encompass both above and below orientations. The device may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used herein should be interpreted accordingly. Furthermore, it will be understood that when a layer is referred to as being “between” two layers, it can be the only layer between the two layers, or there may be one or more intervening layers.

[0054] The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the inventive concept. As used herein, the singular forms “a” and “an” are intended to also include the plural forms unless the context clearly indicates otherwise. It will also be understood that, when used in this specification, the terms “comprising,” “including,” “including,” “having,” “having,” and “possessing” designate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof.

[0055] As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items. For example, the expression “A and / or B” refers to A, B, or A and B. When following an element in a list, expressions such as “one or more of” and “at least one of” modify the elements of the entire list rather than individual elements within it. For example, the expressions “one or more of A, B, and C,” “at least one of A, B, and C,” and “at least one of the group consisting of A, B, and C” mean only A, only B, only C, both A and B, both A and C, both B and C, or all of A, B, and C.

[0056] Furthermore, when describing embodiments of the inventive concept, the word "may" means "one or more embodiments of the inventive concept." Additionally, the term "exemplary" is intended to indicate an example or illustration.

[0057] It will be understood that when a component or layer is referred to as being "on" another component or layer, "connected to", "attached to" another component or layer, or "adjacent to" another component or layer, it can be directly on, directly connected to, directly attached to, or directly adjacent to another component or layer, or there can be one or more intervening components or layers. However, when a component or layer is referred to as being "directly on" another component or layer, "directly connected to", "directly attached to", "in contact with" another component or layer, "in direct contact with" another component or layer, or "immediately adjacent to" another component or layer, there are no intervening components or layers.

[0058] As used herein, the terms “substantially,” “about,” and similar terms are used as approximate terms rather than terms of degree and are intended to account for inherent deviations in measured or calculated values ​​that will be recognized by a person skilled in the art. Furthermore, if the term “substantially” is used in combination with a feature that can be expressed numerically, the term “substantially” indicates a range of + / - 5% of the value centered on that value. Additionally, specific quantities or ranges recited in this written description or claims may also include inherent deviations in measured or calculated values ​​that will be recognized by a person skilled in the art.

[0059] As used in this article, the terms “use,” “using,” and “used” can be understood as synonyms with the terms “utilize,” “utilizing,” and “utilized,” respectively.

[0060] When one or more implementations can be carried out differently, a particular process sequence may be performed differently from the stated sequence. For example, (i) the operation of the disclosed process is merely an example and may involve various additional operations not explicitly covered, and (ii) the temporal order of operations may vary.

[0061] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the inventive concept pertains. It will also be understood that terms such as those defined in common dictionaries shall be interpreted as having a meaning consistent with their meaning in the relevant field and / or the context of this specification, and shall not be interpreted in an idealized or overly formalized sense unless expressly defined herein.

[0062] This disclosure relates to aspects of display devices and methods of manufacturing the same. Hereinafter, a display device and a method of manufacturing the same according to some embodiments will be described with reference to the accompanying drawings.

[0063] Figure 1A schematic top view of a display device according to some embodiments of the present disclosure is shown.

[0064] refer to Figure 1 The display device DD may include a base layer BSL and pixels PXL disposed on the base layer BSL. The display device DD may also include driving circuitry (e.g., scan driver and data driver) for driving the pixels PXL, wiring, and pads.

[0065] The display device DD (or base layer BSL) may include a display area DA and a non-display area NDA. The non-display area NDA may refer to an area other than the display area DA. The non-display area NDA may surround at least a portion of the display area DA.

[0066] The base layer (BSL) can form the base surface of the display device (DD). In some embodiments, the base layer (BSL) can be a lower substrate for setting the layers forming the display device (DD). The base layer (BSL) can be a rigid or flexible substrate or film. For example, the base layer (BSL) can include a glass material. In some examples, the base layer (BSL) can include a silicon material. In other examples, the base layer (BSL) can include polyimide. However, this disclosure is not limited thereto.

[0067] The display area DA can refer to the area where pixels PXL are set. The non-display area NDA can refer to the area where pixels PXL are not set. In the non-display area NDA, the driving circuitry, wiring, and pads for pixels PXL connected to the display area DA can be set.

[0068] According to some implementations, pixel PXL (or sub-pixel SPX) can be based on stripes or pentile patterns. The arrangement of the structure is possible, but this disclosure is not limited thereto, and various examples may be applied to this disclosure.

[0069] According to some implementations, a pixel PXL (or sub-pixel SPX) may include a first sub-pixel SPX1, a second sub-pixel SPX2, and a third sub-pixel SPX3. Each of the first sub-pixel SPX1, the second sub-pixel SPX2, and the third sub-pixel SPX3 may be a sub-pixel. At least one of the first sub-pixel SPX1, the second sub-pixel SPX2, and the third sub-pixel SPX3 may form a pixel unit capable of emitting light of various suitable colors.

[0070] Each of the first sub-pixel SPX1, the second sub-pixel SPX2, and the third sub-pixel SPX3 can emit light of one color.

[0071] For example, the first sub-pixel SPX1 can be a red pixel emitting red (e.g., a first color) light, the second sub-pixel SPX2 can be a green pixel emitting green (e.g., a second color) light, and the third sub-pixel SPX3 can be a blue pixel emitting blue (e.g., a third color) light. The red pixel can provide light in a wavelength band from approximately 600 nm to approximately 750 nm. The green pixel can provide light in a wavelength band from approximately 480 nm to approximately 560 nm. The blue pixel can provide light in a wavelength band from approximately 370 nm to approximately 460 nm.

[0072] According to some implementations, the number of second sub-pixels SPX2 can be greater than the number of first sub-pixels SPX1 and the number of third sub-pixels SPX3. However, the color, type, and / or number of the first sub-pixels SPX1, second sub-pixels SPX2, and third sub-pixels SPX3 forming each of the above-mentioned pixel units are not limited to the specific examples.

[0073] Reference Figure 2 and Figure 3 The general structure of a display device DD according to some embodiments, including its cross-sectional structure, is described.

[0074] Figure 2 A schematic cross-sectional view of a display device according to some embodiments of the present disclosure is shown. Figure 3 A schematic diagram of a display layer according to some embodiments of the present disclosure is shown.

[0075] refer to Figure 2 and Figure 3 The display device DD may include a display layer DL, a light control layer LCL, a color filter layer CFL, and an upper layer UL.

[0076] The display layer (DL) can be configured to emit light. The display layer (DL) can be formed as a substrate on which a light control layer (LCL) is disposed.

[0077] The display layer DL may include a pixel circuit layer PCL and a light-emitting element layer LEL, wherein the pixel circuit layer PCL includes a base layer BSL and the light-emitting element layer LEL includes light-emitting elements LD capable of forming pixels PXL.

[0078] A base layer (BSL) can form a substrate on which pixel circuits (PXCs) are disposed. The pixel circuits (PXCs) can be disposed on the base layer (BSL) and configured to drive light-emitting elements (LDs). The pixel circuit layer (PCL) can include conductive and insulating layers, with the conductive layer forming the pixel circuits (PXCs). The pixel circuits (PXCs) can include circuit elements capable of driving sub-pixels (SPXs) (or light-emitting elements (LDs)). These circuit elements can include driving transistors and may also include additional transistors and capacitors.

[0079] The light-emitting element layer (LEL) can be disposed on the pixel circuit layer (PCL). In some embodiments, the light-emitting element layer (LEL) may include a light-emitting element (LD).

[0080] For example, a light-emitting element (LD) may include an organic light-emitting diode (OLED) containing organic materials. Figure 3 The diagram schematically illustrates some embodiments of an organic light-emitting diode (OLED) as the light-emitting element (LD) and a cross-sectional structure of a display device (DD) in a display area (DA). This cross-sectional structure schematically illustrates the cross-sectional structure of a display layer (DL) including a pixel circuit layer (PCL) and a light-emitting element layer (LEL).

[0081] In some embodiments, the light-emitting element layer (LEL) may also include a pixel-defining film (PDL), a capping layer (CPL), and an encapsulation film (TFE).

[0082] In some implementations, the light-emitting element (LD) may be disposed on the pixel circuit layer (PCL). The LD may include a first light-emitting element contained in a first sub-pixel SPX1, a second light-emitting element contained in a second sub-pixel SPX2, and a third light-emitting element contained in a third sub-pixel SPX3.

[0083] In some embodiments, the light-emitting element (LD) may include a first electrode EL1, a light-emitting portion EL, and a second electrode EL2. In some embodiments, the light-emitting portion EL may be disposed in an area defined by a pixel-defining film (PDL). One surface of the light-emitting portion EL may be electrically connected to the first electrode EL1, and the other surface of the light-emitting portion EL may be electrically connected to the second electrode EL2.

[0084] In some embodiments, the light-emitting element (LD) can form a light-emitting region (EMA). The light-emitting region (EMA) can be the area in which light emitted by the light-emitting element (LD) is provided. In some embodiments, the light-emitting region (EMA) can correspond to the area in which the first electrode (EL1) is exposed by the pixel-defined film (PDL). However, this disclosure is not limited thereto.

[0085] The first electrode EL1 can be the anode electrode for the light-emitting portion EL, and the second electrode EL2 can be the cathode electrode for the light-emitting portion EL. In some embodiments, the first electrode EL1 and the second electrode EL2 can include conductive materials. For example, conductive materials can include gold (Au), silver (Ag), aluminum (Al), molybdenum (Mo), chromium (Cr), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), platinum (Pt), etc. In some examples, conductive materials can include silver nanowires (AgNW), indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium zinc oxide (IGZO), zinc antimony oxide (AZO), zinc oxide (ZnO), tin oxide (SnO2), carbon nanotubes, graphene, etc. However, this disclosure is not necessarily limited to these.

[0086] The light-emitting portion EL can emit light based on electrical signals provided from the anode electrode (e.g., the first electrode EL1) and the cathode electrode (e.g., the second electrode EL2).

[0087] The light-emitting portion (EL) may include a multilayer structure. For example, each EL may include multiple light-emitting structures, including a hole transport portion, a light-emitting layer (or light-generating layer), and an electron transport portion. The individual layers forming the light-emitting structures may include organic materials, and in some embodiments, they may also include inorganic materials such as metal-containing compounds or quantum dots.

[0088] In some embodiments, the light-emitting portion EL may not include a second color light component, but may emit third-color light that includes a third-color light component. For example, multiple light-emitting structures may include a multilayer structure that emits third-color light. Therefore, the light emitted by the light-emitting portion EL may be third-color light.

[0089] In some examples, the light-emitting portion (EL) may include a series structure. For example, the light-emitting portion (EL) may emit light of a single color, including a second color light component and a third color light component. For example, multiple light-emitting structures may include a first light-emitting structure and a second light-emitting structure. The first light-emitting structure may include a multilayer structure that emits light of the second color. The second light-emitting structure may include a multilayer structure that emits light of the third color. Therefore, the light emitted by the light-emitting portion (EL) may be a mixture of the second and third colors.

[0090] The hole transport portion may include a multilayer structure with multiple layers, each layer comprising a different material. For example, the hole transport portion may include at least one of a hole injection layer and a hole transport layer, and in some embodiments, the hole transport portion may further include a light-emitting auxiliary layer and an electron-blocking layer. For example, the hole transport portion may have a multilayer structure, such as a hole injection layer / hole transport layer, a hole injection layer / hole transport layer / light-emitting auxiliary layer, a hole transport layer / light-emitting auxiliary layer, an electron-blocking layer / hole injection layer / hole transport layer, hole transport layers arranged sequentially and comprising different materials, or a hole injection layer / hole transport layer / electron-blocking layer. However, this disclosure is not limited to the specific examples.

[0091] The light-emitting layer may include a material capable of emitting light of a single color. The light-emitting layer may include a host and a dopant. The host of the light-emitting layer is a light-emitting material capable of trapping charge carriers (e.g., electrons and holes) for light generation and capable of inducing efficient exciton generation. The dopant may include a phosphorescent dopant or a fluorescent dopant. In some embodiments, examples of dopant are not particularly limited. In some embodiments, the dopant may include an organic material or a metal complex.

[0092] The electron transport portion may include a multilayer structure with multiple layers, each layer containing a different material. The electron transport portion may include at least one of an electron injection layer and an electron transport layer, and in some embodiments, the electron transport portion may further include an electron buffer layer and a hole blocking layer. For example, the electron transport portion may have a multilayer structure, such as an electron transport layer / electron injection layer, a hole blocking layer / electron transport layer / electron injection layer, or an electron buffer layer / electron transport layer / electron injection layer. However, this disclosure is not limited to the specific examples.

[0093] A pixel defining film (PDL) can be disposed on the pixel circuit layer (PCL) to define the location of the light-emitting portion (EL). The PDL can include organic materials. For example, the PDL can include acrylic resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, etc. However, this disclosure is not limited thereto. In some other embodiments, the PDL can include inorganic materials. For example, the PDL can include silicon oxide (SiO2). x ), silicon nitride (SiN) x In some embodiments, the pixel-defining film (PDL) may have a structure in which silicon oxide (SiO2) is stacked. x The layer and containing silicon nitride (SiN) x () is a multi-layered structure.

[0094] A capping layer CPL can be disposed on the second electrode EL2. The capping layer CPL can cover the second electrode EL2. The capping layer CPL can include inorganic materials.

[0095] The encapsulation film TFE can be disposed on the light-emitting element LD (e.g., the second electrode EL2). The encapsulation film TFE can compensate for the horizontal difference caused by the light-emitting element LD and the pixel defining film PDL. The encapsulation film TFE may include multiple insulating films covering the light-emitting element LD. In some embodiments, the encapsulation film TFE may have a structure in which inorganic and organic films are alternately stacked. In some embodiments, the encapsulation film TFE may be a thin encapsulation film.

[0096] In some embodiments, the light-emitting element (LD) can be an inorganic light-emitting diode comprising inorganic materials. In some examples, as described above, the LD can emit light of a third color. In other examples, the LD can emit light comprising a second color component and a third color component.

[0097] The light control layer (LCL) can be disposed on the display layer (DL) (e.g., the light-emitting element layer (LEL)). For example, the light control layer (LCL) can be disposed on the upper side of the display layer (DL) based on the display orientation (e.g., third-party orientation DR3).

[0098] In some implementations, the light control layer (LCL) can change the color of the applied light and can be a layer that scatters the applied light. For example, the light control layer (LCL) may include a color conversion layer (CCL) (see, for example, [link to relevant documentation]). Figure 7 ) and scattering layer SCL (see, for example) Figure 7 ).

[0099] A color filter layer (CFL) can be disposed on the light control layer (LCL). For example, the color filter layer (CFL) can be disposed on the upper side of the light control layer (LCL) based on the display orientation (e.g., third orientation DR3).

[0100] In some implementations, the color filter layer CFL may include color filters CF_R, CF_G, and CF_B that selectively transmit light of one color (see, for example, see...). Figure 7 ).

[0101] The upper UL can be set on the color filter layer CFL. For example, the upper UL can be set on the upper side of the color filter layer CFL based on the display orientation (e.g., third orientation DR3).

[0102] In some implementations, the upper UL layer may include an upper substrate (e.g., a glass substrate). In some examples, the upper UL layer may include an upper film layer. However, this disclosure is not limited to the specific examples.

[0103] Reference Figures 4 to 7 The description pertains to a display device DD according to some embodiments. Descriptions provided above that may be redundant have been simplified or are not repeated.

[0104] Figures 4 to 6 A schematic top view of a display device according to some embodiments of the present disclosure is shown. Figure 7 Some embodiments according to this disclosure are shown along Figures 4 to 6 A schematic cross-sectional view taken by line A-A'. Figures 4 to 6 The first sub-pixel SPX1, the second sub-pixel SPX2, and the third sub-pixel SPX3 of the first pixel are shown (see, for example, [link to relevant documentation]). Figure 1 The first sub-pixel SPX1 and the fourth sub-pixel of the second pixel adjacent to the first pixel are shown, and it is shown that the first sub-pixel SPX1 and the fourth sub-pixel have the same area.

[0105] For example, the first sub-pixel SPX1 and the fourth sub-pixel can be red pixels that emit red (e.g., the first color) light, the second sub-pixel SPX2 can be green pixels that emit green (e.g., the second color) light, and the third sub-pixel SPX3 can be blue pixels that emit blue (e.g., the third color) light.

[0106] Figure 4 The embankment BNK is shown schematically. Figure 5 The diagram schematically illustrates the BNK embankment, CCL color conversion layer, and SCL scattering layer. Figure 6 The light-blocking structure LBS is schematically illustrated. Based on Figures 4 to 7 This will allow for a clearer understanding of the component settings relationships.

[0107] refer to Figures 4 to 7 The display device DD (e.g., pixel PXL) may include a BNK.

[0108] A dam BNK can be patterned within the display area DA. A dam BNK may not be located within a portion of the display area DA. For example, a dam BNK can form an opening OPN. A dam BNK can protrude in the thickness direction of the base layer BSL (e.g., third-direction DR3) and can surround the opening OPN. A dam BNK can expose the display layer DL (e.g., encapsulation film TFE) within the opening OPN. A dam BNK may not be located within the opening OPN. The opening OPN may include a first opening OP1 through a fourth opening OP4.

[0109] In some embodiments, the BNK (Body Blocking Shield) may include acrylic resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, etc. In some embodiments, the BNK may include a light-blocking material (e.g., a black matrix). However, this disclosure is not limited thereto.

[0110] In some implementations, the opening OPN can be a region in which ink is supplied during the inkjet process used to form the color conversion layer CCL.

[0111] In some embodiments, the first opening OP1 to the fourth opening OP4 may be arranged along the first direction DR1. Furthermore, the sizes of the first opening OP1 to the fourth opening OP4 may be different. For example, the third opening OP3 may be formed to be smaller than the first opening OP1. In some embodiments, when viewed in a plan view, the first opening OP1 to the fourth opening OP4 may be spaced apart from each other based on the first direction DR1.

[0112] The plane defined in this specification is a direction extending in the first direction DR1 and the second direction DR2, and can be defined based on the plane on which the base layer BSL is disposed. In some embodiments, the third direction DR3 can be the thickness direction of the base layer BSL, and the third direction DR3 can be the light emission direction of the display device DD.

[0113] A display device DD (e.g., a pixel PXL) may include a color conversion layer CCL and a scattering layer SCL disposed within the display area DA.

[0114] The color conversion layer (CCL) can be patterned within the display area (DA). The color conversion layer (CCL) can be placed within the area surrounded by the embankment (BNK). When viewed in a plan view, the color conversion layer (CCL) does not need to overlap with the embankment (BNK).

[0115] A color conversion layer (CCL) can be configured to change the color of light. For example, a color conversion layer CCL may include a first color conversion layer CCL1 and a second color conversion layer CCL2. In some embodiments, the color conversion layer CCL may be formed based on an inkjet process.

[0116] The first color conversion layer CCL1 may be a layer used to form the first sub-pixel SPX1. The first color conversion layer CCL1 may include first color conversion particles that convert light provided by the light-emitting element LD (e.g., light including a third color component) into light of a first color. For example, the first color conversion layer CCL1 may include first quantum dots that convert third color light into first color light. The first quantum dots may absorb third color light and convert wavelength according to energy transitions to emit first color light. The first quantum dots may be dispersed and disposed in a matrix layer, such as an organic material layer, included within the first color conversion layer CCL1.

[0117] refer to Figure 4 and Figure 5 The first color conversion layer CCL1 can be set within the first opening OP1 and the fourth opening OP4.

[0118] The second color conversion layer CCL2 can be a layer used to form the second sub-pixel SPX2. The second color conversion layer CCL2 can include second color conversion particles that convert light provided by the light-emitting element LD (e.g., light including a third color component) into second color light. For example, the second color conversion layer CCL2 can include second quantum dots that convert third color light into second color light. The second quantum dots can absorb third color light and convert wavelengths according to energy transitions to emit second color light. The second quantum dots can be dispersed and disposed in a matrix layer, such as an organic material layer, included in the second color conversion layer CCL2.

[0119] refer to Figure 4 and Figure 5 The second color conversion layer CCL2 can be set inside the second opening OP2.

[0120] The scattering layer SCL can be patterned within the display area DA. The scattering layer SCL can be set within the area surrounded by the embankment BNK. When viewed in a planar view, the scattering layer SCL does not need to overlap with the embankment BNK.

[0121] The scattering layer SCL can be a layer used to improve the light emission efficiency and viewing angle characteristics of a display device (DD). The scattering layer SCL can include a scatterer. The scatterer can be dispersed and disposed in a matrix layer, such as an organic material layer (e.g., a transparent organic material layer), included in the scattering layer SCL. In some embodiments, the scatterer can include various suitable light-scattering particles. For example, the scatterer can include titanium oxide (TiO₂). x ), silicon dioxide (SiO2) (e.g., silicon dioxide beads, hollow silicon dioxide, etc.), zirconium oxide (ZrO2) x ), aluminum oxide (Al) x O y Indium oxide (In) x O y ), zinc oxide (ZnO) x ), tin oxide (SnO x ), antimony oxide (Sb x O y However, this disclosure is not limited thereto.

[0122] refer to Figure 4 and Figure 5 The scattering layer SCL can be set inside the third opening OP3.

[0123] In some embodiments, the display device DD may further include a spacer CS. When viewed in a plan view, the spacer CS may overlap with the second opening OP2, the fourth opening OP4, and the embankment BNK.

[0124] The spacer CS can create a gap between the other components of the light control layer LCL and the color filter layer CFL. In this case, when manufacturing a display device DD having a filler layer FIL inserted between the color filter layer CFL and the light control layer LCL, damage to each layer of the display device DD can be prevented or significantly reduced.

[0125] In some embodiments, the display device DD may include a sub-pixel region SPXA in which light of one color is provided and a non-sub-pixel region NSPA in which light of a different color is provided. The display device DD may include a light-blocking structure LBS.

[0126] In some implementations, the sub-pixel region SPXA may include first sub-pixel regions SPXA1 to fourth sub-pixel regions SPXA4. The first sub-pixel regions SPXA1 and fourth sub-pixel regions SPXA4 may be regions where light of a first color is provided, and may also be regions where a first color conversion layer CCL1 is disposed. The second sub-pixel region SPXA2 may be a region where light of a second color is provided, and may also be a region where a second color conversion layer CCL2 is disposed. The third sub-pixel region SPXA3 may be a region where light of a third color is provided, and may also be a region where a scattering layer SCL is disposed.

[0127] When viewed in a planar view, the light-blocking structure (LBS) does not overlap with the sub-pixel region (SPXA) and can be placed within the non-sub-pixel region (NSPA). Because of the formation of the light-blocking structure (LBS), the risk of color mixing between sub-pixels (SPX) is reduced.

[0128] In some implementations, when viewed in a plan view, the area of ​​the opening OPN that does not overlap with the light-blocking structure LBS can be a sub-pixel region SPXA, and the area of ​​the opening OPN that overlaps with the light-blocking structure LBS can be a non-sub-pixel region NSPA.

[0129] For example, when viewed in a planar view, the area of ​​the first opening OP1 that does not overlap with the light-blocking structure LBS can be the first sub-pixel region SPXA1, and the area of ​​the first opening OP1 that overlaps with the light-blocking structure LBS can be the non-sub-pixel region NSPA.

[0130] When viewed in a planar view, the area of ​​the second opening OP2 that does not overlap with the light-blocking structure LBS can be the second sub-pixel region SPXA2, and the area of ​​the second opening OP2 that overlaps with the light-blocking structure LBS can be the non-sub-pixel region NSPA.

[0131] When viewed in a planar view, the area of ​​the third opening OP3 that does not overlap with the light-blocking structure LBS can be the third sub-pixel region SPXA3, and the area of ​​the third opening OP3 that overlaps with the light-blocking structure LBS can be the non-sub-pixel region NSPA. Although Figure 6 It is shown that the third opening OP3 and the third sub-pixel region SPXA3 are the same, but this disclosure is not limited thereto.

[0132] When viewed in a planar view, the area of ​​the fourth opening OP4 that does not overlap with the light-blocking structure LBS can be the fourth sub-pixel region SPXA4, and the area of ​​the fourth opening OP4 that overlaps with the light-blocking structure LBS can be the non-sub-pixel region NSPA.

[0133] In some embodiments, the spacer CS may be disposed between the dam BNK and the color filter layer CFL. The upper surface US of the spacer CS may overlap with the light-blocking structure LBS. A portion of the lower surface BS of the spacer CS may overlap with the dam BNK, and the remainder of the lower surface BS of the spacer CS may overlap with the opening OPN.

[0134] When increasing the area of ​​the aperture OPN to maximize its aperture ratio, a spacer CS can be provided that overlaps with a portion of the aperture OPN. Therefore, the spacer CS can be provided while ensuring the maximum aperture ratio, thereby improving the efficiency and lifespan of the display device DD.

[0135] refer to Figure 7 In the sectional view, the length L1 of the embankment BNK overlapping with the spacer CS can be shorter than the length L2 of the lower surface BS of the spacer CS. Furthermore, in the sectional view, the length L1 of the embankment BNK overlapping with the spacer CS can be shorter than the length L3 of the upper surface US of the spacer CS.

[0136] In other words, the diameter of the spacer CS can be larger than the width of the embankment BNK that overlaps with the spacer CS. Therefore, when the spacer CS is placed on the embankment BNK, alignment allowance can be ensured.

[0137] In some embodiments, the length L3 of the upper surface US of the spacer CS can be longer than the length L2 of the lower surface BS of the spacer CS. Therefore, the spacer CS can have an inverted trapezoidal cross-section.

[0138] Furthermore, in the sectional view, the center of the spacer CS and the center of the embankment BNK can coincide (e.g., be aligned). For example, the center of the spacer CS and the center of the embankment BNK can coincide (e.g., be aligned) at the center point CNT.

[0139] In some implementations, the light control layer LCL, the color filter layer CFL, and the upper UL layer can be disposed on the display layer DL.

[0140] The light-emitting element (LD) formed in the display layer DL can be disposed in each of the sub-pixel regions SPXA. For example, the light-emitting element LD may include a first light-emitting element, a second light-emitting element, a third light-emitting element, and a fourth light-emitting element, wherein the first light-emitting element is included in the first sub-pixel SPX1 and disposed in the first sub-pixel region SPXA1, the second light-emitting element is included in the second sub-pixel SPX2 and disposed in the second sub-pixel region SPXA2, the third light-emitting element is included in the third sub-pixel SPX3 and disposed in the third sub-pixel region SPXA3, and the fourth light-emitting element is included in the fourth sub-pixel and disposed in the fourth sub-pixel region SPXA4.

[0141] In some implementations, when viewed in a plan view, the light-emitting region EMA formed by the light-emitting element LD can overlap with the sub-pixel region SPXA.

[0142] When viewed in a planar view, the emitting region EMA (or emitting element LD) can overlap with the color conversion layer CCL and the color filter CF. When viewed in a planar view, the emitting region EMA (or emitting element LD) can overlap with the scattering layer SCL and the color filter CF.

[0143] The light control layer LCL can be disposed on the display layer DL (e.g., encapsulation film TFE). As described above, the light control layer LCL may include a color conversion layer CCL, a scattering layer SCL, and a diaphragm BNK.

[0144] The BNK can expose the upper surface of the display layer DL (e.g., the upper surface of the encapsulation film TFE).

[0145] In some embodiments, the display device DD may further include a filler layer FIL interposed between the light control layer LCL and the color filter layer CFL. The filler layer FIL may comprise various suitable transparent organic materials, and examples of transparent organic materials are not particularly limited. In some embodiments, a first panel is manufactured in which the light control layer LCL is disposed on a display layer DL including a base layer BSL, a second panel is manufactured in which the color filter layer CFL is disposed on an upper layer UL, and the filler layer FIL is interposed between the first panel and the second panel to connect the first panel and the second panel, thereby manufacturing the display device DD. However, this disclosure is not necessarily limited thereto.

[0146] The color filter layer CFL can be disposed on the light control layer LCL (e.g., on the filler layer FIL). The color filter layer CFL can be formed below the upper UL layer. The color filter layer CFL may include a color filter CF, an optical layer LRL, and an upper capping layer.

[0147] In some implementations, the color filter CF may include a first color filter CF_R for forming a first sub-pixel SPX1, a second color filter CF_G for forming a second sub-pixel SPX2, and a third color filter CF_B for forming a third sub-pixel SPX3.

[0148] The first color filter CF_R can be located within the first sub-pixel region SPXA1. The first color filter CF_R can include a color filter material (e.g., a dye or pigment) that selectively transmits light of a first color (e.g., red).

[0149] The second color filter CF_G can be set within the second sub-pixel region SPXA2. The second color filter CF_G may include a color filter material (e.g., a dye or pigment) that selectively transmits light of a second color (e.g., green).

[0150] The third color filter CF_B can be set within the third sub-pixel region SPXA3. The third color filter CF_B can include a color filter material (e.g., a dye or pigment) that selectively transmits light of a third color (e.g., blue).

[0151] In some implementations, non-subpixel regions (NSPAs) can be formed between subpixel regions SPXA, where light of one color cannot be visually detected. For example, when viewed in a planar view, a light-blocking structure (LBS) in which a first color filter CF_R, a second color filter CF_G, and a third color filter CF_B overlap can be formed in the non-subpixel regions NSPA.

[0152] The optical layer LRL can have a higher refractive index than the layer forming the color filter CF. The optical layer LRL can have a lower refractive index than the color conversion layer CCL, and can form an optical loop structure.

[0153] The optical layer LRL can comprise a variety of suitable materials to have a refractive index. For example, the optical layer LRL can comprise a variety of suitable resins and hollow silica. In some examples, the optical layer LRL can comprise zirconium oxide (ZrO2). x However, this disclosure is not limited thereto. The optical layer LRL may have a lower refractive index than the color conversion layer CCL and may form an optical loop structure. In some embodiments, the optical layer LRL may be referred to as a low refractive index layer.

[0154] The upper UL layer can be disposed on the color filter layer CFL. The upper UL layer can be a substrate on which the color filter layer CFL is disposed. In some examples, the upper UL layer may include a functional film layer (e.g., an anti-reflective film, a polarizing film layer, etc.).

[0155] Reference Figures 8 to 11This describes a display device DD according to some other embodiments. The descriptions provided above may be redundant and have been simplified or will not be repeated.

[0156] Figures 8 to 10 A schematic top view of a display device according to some other embodiments of the present disclosure is shown. Figure 11 Along some other embodiments according to this disclosure are shown. Figures 8 to 10 A schematic cross-sectional view taken by line B-B'. Figures 8 to 10 The first sub-pixels SPX1 to the third sub-pixels SPX3, which have the same area, are shown. Figure 8 The embankment BNK is shown schematically. Figure 9 The diagram schematically illustrates the BNK embankment, CCL color conversion layer, and SCL scattering layer. Figure 10 The light-blocking structure LBS is schematically illustrated. Based on Figure 11 This allows for a clearer understanding of the configuration relationships between components.

[0157] refer to Figures 8 to 11 The difference between the display device DD according to some other embodiments and the display device DD according to the above embodiment is that the opening OPN does not overlap with the light blocking structure LBS.

[0158] In some implementations, the opening OPN may not overlap with the light-blocking structure LBS when viewed in a plan view. The light-blocking structure LBS may not overlap with the sub-pixel region SPXA when viewed in a plan view, and may be located within the non-sub-pixel region NSPA.

[0159] In some embodiments, the first sub-pixel region SPXA1 to the third sub-pixel region SPXA3 may be spaced apart from each other in the first direction DR1. The first sub-pixel region SPXA1 may be located between the second sub-pixel region SPXA2 and the third sub-pixel region SPXA3.

[0160] In some implementations, when viewed in a plan view, the spacer CS may overlap with the first opening OP1, the second opening OP2, and the embankment BNK.

[0161] In addition, refer to Figure 11 In the cross-sectional view, the spacer CS can be positioned between the dam BNK and the color filter layer CFL. A portion of the upper surface US of the spacer CS can overlap with the light-blocking structure LBS, and the remainder can overlap with the sub-pixel region SPXA. A portion of the lower surface BS of the spacer CS can overlap with the dam BNK, and the remainder can overlap with the opening OPN.

[0162] In some embodiments, the length L1 of the embankment BNK overlapping the spacer CS may be shorter than the length L2 of the lower surface BS of the spacer CS. In a cross-sectional view, the length L1 of the embankment BNK overlapping the spacer CS may be shorter than the length L3 of the upper surface US of the spacer CS. That is, the diameter of the spacer CS may be greater than the width of the embankment BNK overlapping the spacer CS.

[0163] In some embodiments, the length L3 of the upper surface US of the spacer CS can be longer than the length L2 of the lower surface BS of the spacer CS. Therefore, the spacer CS can have an inverted trapezoidal cross-section.

[0164] Furthermore, in the sectional view, the center of the spacer CS and the center of the embankment BNK can coincide (e.g., be aligned). For example, the center of the spacer CS and the center of the embankment BNK can coincide (e.g., be aligned) at the center point CNT.

[0165] When a portion of the upper surface US of the spacer CS overlaps with the sub-pixel region SPXA, the spacer CS can be made of a material with the same refractive index as the filler layer FIL to prevent or substantially reduce light loss.

[0166] The light-emitting element (LD) formed in the display layer DL can be disposed in each of the sub-pixel regions SPXA. For example, the light-emitting element LD may include a first light-emitting element LD1 contained in the first sub-pixel SPX1 and disposed in the first sub-pixel region SPXA1, a second light-emitting element LD2 contained in the second sub-pixel SPX2 and disposed in the second sub-pixel region SPXA2, and a third light-emitting element LD3 contained in the third sub-pixel SPX3 and disposed in the third sub-pixel region SPXA3. A portion of the spacer CS may overlap with the light-emitting region EMA (or the light-emitting element LD).

[0167] In some embodiments, the first light-emitting elements LD1 to the third light-emitting elements LD3 can be configured to emit light including a third color component. For example, the first light-emitting elements LD1 to the third light-emitting elements LD3 can emit light of the third color in the same manner. In some examples, in some embodiments, the first light-emitting elements LD1 to the third light-emitting elements LD3 can be configured to emit light including a second color component and a third color component. For example, the first light-emitting elements LD1 to the third light-emitting elements LD3 can emit light of a color that is a mixture of the second color component and the third color component.

[0168] Figure 12 A flowchart illustrating a method for manufacturing a display device according to some embodiments of the present disclosure is shown. (Reference) Figure 2 and Figure 12According to some embodiments, the manufacturing method of the display device DD may include manufacturing a first panel (S100), manufacturing a second panel (S200), and bonding the first panel and the second panel (S300).

[0169] In Action S100, refer to the following: Figure 7 It is possible to manufacture a first panel in which the light control layer LCL is set on the display layer DL, which includes the base layer BSL.

[0170] In Action S200, refer to the following: Figure 7 It is possible to manufacture a second panel in which the color filter layer CFL is set on the upper UL.

[0171] In Action S300, refer to the following: Figure 7 The filler layer (FIL) can be inserted between the first panel and the second panel, thereby allowing the first panel and the second panel to be joined together to manufacture the display device DD.

[0172] refer to Figure 12 The illustration shows the manufacture of a second panel after the manufacture of a first panel, but this disclosure is not limited thereto. For example, the first panel may be manufactured after the manufacture of the second panel. Furthermore, the manufacture of the first and second panels may be performed synchronously (e.g., simultaneously).

[0173] Figure 13 It shows Figure 12 The flowchart for manufacturing the first panel. Figure 14 and Figure 15 It shows Figure 13 A schematic diagram of the manufacturing process of the display device.

[0174] refer to Figure 14 In the action S100 of manufacturing the first panel, the action S110 of manufacturing the display layer can be performed.

[0175] In the action S110 of manufacturing the display layer DL, the layer that forms the display layer DL can be set on the base layer BSL.

[0176] In some embodiments, the conductive or insulating layer on the base layer (BSL) can be formed based on typical processes used to manufacture semiconductor devices. For example, the conductive or insulating layer on the base layer (BSL) can be formed by photolithography, etched by various suitable methods (wet etching, dry etching, etc.), and deposited by various suitable methods (sputtering, chemical vapor deposition, etc.). However, this disclosure is not necessarily limited to these specific examples.

[0177] In action S110, refer to the following: Figure 3Pixel circuits (PXCs) can be patterned on the base layer (BSL) to form a pixel circuit layer (PCL), and light-emitting elements (LDs) can be placed on the pixel circuit layer (PCL).

[0178] In some embodiments, during action S110, the light-emitting element LD can be disposed on the base layer BSL (e.g., pixel circuit layer PCL) using various suitable methods. In some embodiments, the light-emitting element layer LEL, including the light-emitting element LD, can be positioned on the base layer BSL. In some embodiments, an encapsulation film TFE can be formed on substantially the uppermost portion of the display layer DL.

[0179] In action S110, refer to the following: Figure 3 The light-emitting element (LD) can include an organic light-emitting diode (OLED) and can be fabricated on a base layer (BSL) using a deposition process.

[0180] refer to Figure 12 , Figure 13 and Figure 15 In the action S100 of manufacturing the first panel, the action S120 of forming a light control layer on the display layer can be performed.

[0181] In the action S120 of forming the light control layer LCL on the display layer DL, the dam BNK, the color conversion layer CCL, and the scattering layer SCL can be formed.

[0182] In operation S120, a dam BNK can be formed on the display layer DL (e.g., encapsulation film TFE). The dam BNK can be formed in a portion of the display layer DL (e.g., encapsulation film TFE) and can substantially define the area for forming the sub-pixel region SPXA when performing subsequent processes.

[0183] For example, refer to together Figure 4 In action S120, the first opening OP1 to the fourth opening OP4 surrounded by the embankment BNK can be formed. When viewed in a planar view, the third opening OP3 can overlap with the third sub-pixel region SPXA3.

[0184] In action S120, after setting the embankment BNK, a first color conversion layer CCL1, a second color conversion layer CCL2, and a scattering layer SCL can be formed. For example, the first color conversion layer CCL1, the second color conversion layer CCL2, and the scattering layer SCL can be disposed in their respective corresponding openings. The first color conversion layer CCL1, the second color conversion layer CCL2, and the scattering layer SCL can be formed based on inkjet printing or photolithography. However, this disclosure is not limited thereto.

[0185] In some embodiments, a first capping layer may be formed on the barrier layer (BNK), the color conversion layer (CCL), and the scattering layer (SCL). The first capping layer may cover the other layers of the light control layer (LCL). The first capping layer may passivate the barrier layer (BNK), the color conversion layer (CCL), and the scattering layer (SCL). The first capping layer may include an inorganic material.

[0186] Figure 16 Some embodiments according to this disclosure are shown. Figure 12 A flowchart of the process for manufacturing the second panel. Figure 17 and Figure 18 Some embodiments according to this disclosure are shown. Figure 16 A schematic diagram of the manufacturing process of the display device.

[0187] refer to Figure 12 and Figures 16 to 17 In the action S200 of manufacturing the second panel, the action S210 of manufacturing the color filter layer CFL can be performed.

[0188] In action S210, a layer forming a color filter layer CFL can be formed on the upper UL layer. Color filters CF can be patterned on the upper UL layer using a photolithography process, and therefore, the first color filter CF_R, the second color filter CF_G, and the third color filter CF_B can be patterned to overlap with the first sub-pixel region SPXA1 to the third sub-pixel region SPXA3, and a light-blocking structure LBS can be formed in one region. An optical layer LRL can be formed on the color filter CF.

[0189] In some embodiments, a second capping layer may be formed on the optical layer LRL. The second capping layer may passivate the other layers of the color filter layer CFL. The second capping layer may include an inorganic material.

[0190] refer to Figure 12 , Figure 16 and Figure 18 In the action S200 of manufacturing the second panel, the action S220 of forming spacer CS on the color filter layer CFL can be performed.

[0191] In action S220, the spacer CS can be patterned in the area overlapping with the light-blocking structure LBS. The length of the upper surface US of the spacer CS that contacts the color filter layer CFL can be longer than the length of the lower surface BS of the spacer CS that does not contact the color filter layer CFL.

[0192] Figure 19 Some embodiments according to this disclosure are shown. Figure 12 A schematic diagram of the process of joining the first panel and the second panel.

[0193] refer to Figure 12 and Figure 19 The first and second panels can be joined by a filler layer (FIL).

[0194] In action S300, the first panel and the second panel can be engaged such that the center of the spacer CS coincides with (e.g., aligned) the center of one of the embankments BNK. (Reference) Figure 19 The center of the spacer CS can coincide with (e.g., be aligned) the center of the embankment BNK located between the second opening OP2 and the fourth opening OP4.

[0195] Furthermore, the diameter of the spacer CS can be greater than the width of the embankment BNK that contacts the spacer CS. For example, the length L1 of the embankment BNK that contacts the spacer CS can be less than the length L2 of the lower surface BS of the spacer CS and the length L3 of the upper surface US of the spacer CS.

[0196] As a color conversion layer (CCL), a first panel on which a scattering layer (SCL) is formed and a second panel on which a spacer (CS) is formed are manufactured separately and then joined together. The color conversion layer (CCL) and the scattering layer (SCL) can be formed independently of the process of the spacer (CS). Therefore, during the inkjet process of the color conversion layer (CCL) and the scattering layer (SCL), an area in which ink droplets are provided can be ensured, and process convenience can be improved.

[0197] Although it has been referenced Figures 12 to 19 Described Figure 7 This disclosure describes manufacturing methods for some embodiments, but is not limited thereto, and similar methods can be used to manufacture [the products]. Figure 11 Some implementation methods.

[0198] However, in action S220, the spacer CS can be patterned to overlap with the light-blocking structure LBS and the sub-pixel region SPXA. For example, the upper surface US of the spacer CS can overlap with the first sub-pixel region SPXA1, the second sub-pixel region SPXA2, and the light-blocking structure LBS.

[0199] Figure 20 A block diagram of a display device according to an embodiment is shown.

[0200] refer to Figure 20 The display device DD may include a display panel DP, a gate driver 120, a data driver 130, a voltage generator 140, and a controller 150. The display device DD may be... Figure 1 The display device DD.

[0201] The display panel DP may include sub-pixels SP. Sub-pixels SP can be connected to gate driver 120 via first gate line GL1 to m-th gate line GLm. Sub-pixels SP can be connected to data driver 130 via first data line DL1 to n-th data line DLn.

[0202] Subpixels SP can produce two or more colors of light. For example, within the spirit and scope of this disclosure, subpixels SP can produce light of colors such as red, green, blue, cyan, magenta, yellow, etc.

[0203] Two or more sub-pixels SP can form a pixel PXL. For example, pixel PXL can be like this: Figure 20 The diagram shows three sub-pixels SP. Therefore, pixel PXL can emit light of various colors and brightnesses based on the combination of light emitted from the sub-pixels SP included in pixel PXL.

[0204] Gate driver 120 is connected to sub-pixels SP arranged (or configured) in the row direction via first gate lines GL1 to m-th gate lines GLm. Gate driver 120 may output gate signals to first gate lines GL1 to m-th gate lines GLm in response to gate control signal GCS. In embodiments, within the spirit and scope of this disclosure, gate control signal GCS may include a start signal indicating the start of each frame, a horizontal synchronization signal, etc.

[0205] The gate driver 120 may be disposed on one side or side of the display panel DP. However, the implementation is not limited to this. For example, the gate driver 120 may be divided into two or more physically and / or logically separate drivers, and the drivers may be disposed on one side or side of the display panel DP and on the opposite side of the display panel DP. As described above, according to the implementation, the gate driver 120 may be disposed around the display panel DP in various forms.

[0206] Data driver 130 is connected to sub-pixels SP arranged in the column direction via first data lines DL1 to nth data lines DLn. Data driver 130 receives image data DATA and data control signal DCS from controller 150. Data driver 130 operates in response to data control signal DCS. In embodiments, within the spirit and scope of this disclosure, data control signal DCS may include source start signal, source shift clock signal, source output enable signal, etc.

[0207] The data driver 130 can receive voltage from the voltage generator 140. The data driver 130 can use the received voltage to apply a data signal having a grayscale voltage corresponding to the image data DATA to the first data lines DL1 to the nth data line DLn. When a gate signal is applied to each of the first gate lines GL1 to the mth gate line GLm, the data signal corresponding to the image data DATA can be applied to the data lines DL1 to DLn. Therefore, the sub-pixel SP can generate light corresponding to the data signal, and the display panel DP can display an image.

[0208] In one embodiment, gate driver 120 and data driver 130 may include complementary metal-oxide-semiconductor (CMOS) circuit elements.

[0209] Voltage generator 140 can operate in response to a voltage control signal VCS from controller 150. Voltage generator 140 is configured to generate a voltage and provide the generated voltage to components of display device DD, such as gate driver 120, data driver 130, and controller 150. Voltage generator 140 can generate a voltage by receiving an input voltage from outside display device DD and adjusting the received voltage.

[0210] Voltage generator 140 can generate a first power supply voltage and a second power supply voltage. The generated first and second power supply voltages can be supplied to the sub-pixel SP via power line PL. In other embodiments, at least one of the first and second power supply voltages can be supplied externally to the display device DD.

[0211] Voltage generator 140 can provide various voltages and / or signals. For example, voltage generator 140 can provide one or more initialization voltages applied to sub-pixel SP. For example, during sensing operations that sense the electrical characteristics of the transistors and / or light-emitting elements of sub-pixel SP, an optional reference voltage can be applied to the first data line DL1 through the nth data line DLn, and voltage generator 140 can generate the reference voltage to transmit it to data driver 130. For example, during display operations for displaying an image on display panel DP, a common pixel control signal can be applied to sub-pixel SP, and voltage generator 140 can generate the pixel control signal. In an embodiment, voltage generator 140 can provide pixel control signals to sub-pixel SP via pixel control line PXCL. Figure 20 The diagram shows a pixel control line PXCL connected between the voltage generator 140 and the display panel DP, but the implementation is not limited to this. For example, the pixel control line PXCL can be connected between the gate driver 120 and the display panel DP. In this case, pixel control signals can be transmitted from the voltage generator 140 to the pixel control line PXCL via the gate driver 120.

[0212] The controller 150 controls various operations of the display device DD. The controller 150 receives input image data IMG and its corresponding control signal CTRL from an external source. In response to the control signal CTRL, the controller 150 can provide a gate control signal GCS, a data control signal DCS, and a voltage control signal VCS.

[0213] The controller 150 can convert the input image data IMG into a format suitable for a display device DD or a display panel DP to output image data DATA. In one embodiment, the controller 150 can output image data DATA by aligning the input image data IMG to sub-pixels SP suitable for row cells.

[0214] Two or more of the components—data driver 130, voltage generator 140, and controller 150—can be mounted on a single integrated circuit. For example... Figure 20 As shown, the data driver 130, voltage generator 140, and controller 150 may be included in a driver integrated circuit (DIC). In this case, the data driver 130, voltage generator 140, and controller 150 may be functionally separate components within a single driver integrated circuit (DIC). In other embodiments, at least one of the data driver 130, voltage generator 140, and controller 150 may be configured as a component separate from the driver integrated circuit (DIC).

[0215] The display device according to the embodiments can be applied to various types of electronic devices. In the embodiments, the electronic device includes the above-described display device, and may also include other modules or devices with additional functions in addition to the display device.

[0216] Figure 21 This is a block diagram of an electronic device according to an embodiment. (Reference) Figure 21 The electronic device 10 may include a display module 11, a processor 12, a memory 13, and a power module 14.

[0217] The processor 12 may include at least one of a central processing unit (CPU), an application processor (AP), a graphics processing unit (GPU), a communication processor (CP), an image signal processor (ISP), and a controller.

[0218] The memory 13 can store data and / or information used to operate the processor 12 or the display module 11. When the processor 12 executes the application program stored in the memory 13, image data signals and / or input control signals can be transmitted to the display module 11. The display module 11 can process the provided signals and output image information on the display screen.

[0219] The power module 14 may include a power supply module such as a power adapter or battery device, and a power conversion module. The power conversion module converts the power supplied by the power supply module and generates power to operate the electronic device 10.

[0220] At least one of the aforementioned components of the electronic device 10 may be included in the display device according to the embodiment described above. Furthermore, in terms of function, some of the individual modules included in a single module may be included in the display device, and other modules included in a single module may be disposed separately from the display device. For example, the display module 11 is included in the display device, while the processor 12, memory 13, and power module 14 are not included in the display device but are disposed separately in the electronic device 10.

[0221] Figure 22 Schematic diagrams illustrating various embodiments of the electronic device are shown.

[0222] refer to Figure 22 Various types of electronic devices that employ implementations of display devices may include electronic devices that display images (such as smartphones 10_1a, tablet PCs 10_1b, laptop computers 10_1c, televisions (TVs) 10_1d, and desktop monitors 10_1e), wearable electronic devices that include display modules (such as smart glasses 10_2a, head-mounted displays (HMDs) 10_2b, and smartwatches 10_2c), and automotive electronic devices 10_3 that include display modules (such as center information displays (CIDs) located in the instrument cluster, central dashboard, and dashboard of a vehicle, as well as interior mirror displays).

[0223] The technical concept of this disclosure has been specifically described according to preferred embodiments; however, it should be noted that the foregoing embodiments are provided for illustration only and not for limiting the disclosure. Those skilled in the art will understand that various suitable changes in form and detail may be made in this disclosure without departing from the scope of this disclosure as defined by the appended claims and their equivalents.

Claims

1. A display device, comprising: Display layer; A light control layer, on the display layer, includes a dam and a color conversion layer, the light control layer further including an opening, the dam not being positioned in the opening; A color filter layer is provided on the light control layer and includes a color filter and a light blocking structure. as well as A spacer is positioned between the embankment and the light-blocking structure and partially overlaps with the opening.

2. The display device according to claim 1, wherein, The diameter of the spacer is greater than the width of the embankment that overlaps with the spacer.

3. The display device according to claim 2, wherein, In the cross-sectional view, the length of the upper surface of the spacer is longer than the length of the lower surface of the spacer.

4. The display device according to claim 3, wherein, In the sectional view, the spacer has an inverted trapezoidal shape.

5. The display device according to claim 3, wherein, The upper surface of the spacer is adjacent to the color filter layer, and the lower surface of the spacer is adjacent to the embankment.

6. The display device according to claim 2, wherein, In the cross-sectional view, the center of the spacer coincides with the center of the embankment that overlaps with the spacer.

7. The display device according to claim 1, further comprising: A sub-pixel region and a non-sub-pixel region outside the sub-pixel region emit light of one color from the sub-pixel region. The sub-pixel region includes a first sub-pixel region that emits light of a first color, a second sub-pixel region that emits light of a second color, and a third sub-pixel region that emits light of a third color. When viewed in a planar view, the opening has a first opening that overlaps with the first sub-pixel region, a second opening that overlaps with the second sub-pixel region, and a third opening that overlaps with the third sub-pixel region.

8. The display device according to claim 7, wherein, A portion of the first opening, a portion of the second opening, and a portion of the third opening overlap with the non-sub-pixel region.

9. A display device, comprising: Display layer; A light control layer, on the display layer, includes a dam and a color conversion layer, the light control layer further including an opening, the dam not being positioned in the opening; A color filter layer is provided on the light control layer and includes a color filter and a light blocking structure. as well as A spacer is placed between the embankment and the light-blocking structure, wherein a portion of the upper surface of the spacer overlaps with the light-blocking structure, and a portion of the lower surface of the spacer overlaps with the opening.

10. The display device according to claim 9, wherein, The diameter of the spacer is greater than the width of the embankment that overlaps with the spacer.

11. The display device according to claim 10, wherein, In the cross-sectional view, the length of the upper surface of the spacer is longer than the length of the lower surface of the spacer.

12. The display device according to claim 10, wherein, The upper surface of the spacer is adjacent to the color filter layer, and the lower surface of the spacer is adjacent to the embankment.

13. The display device according to claim 10, wherein, In the cross-sectional view, the center of the spacer coincides with the center of the embankment that overlaps with the spacer.

14. The display device according to claim 9, wherein, The display layer includes light-emitting elements that provide light to the light-emitting areas. When viewed in a plan view, the luminescent area overlaps with the color filter and the color conversion layer. A portion of the spacer overlaps with the light-emitting area.

15. The display device according to claim 9, wherein, The filling layer is located between the light control layer and the color filter layer, and The filling layer and the spacer have the same refractive index.

16. A method for manufacturing a display device, comprising: Manufacturing the first panel; Manufacturing a second panel; as well as A filler layer is inserted between the first panel and the second panel, and the first panel and the second panel are joined together. Manufacturing the first panel includes: A color filter layer comprising a color filter and a light-blocking structure is formed on the first base layer; and Spacers are formed on the light-blocking structure.

17. The method of manufacturing a display device according to claim 16, wherein, Manufacturing the second panel includes: Positioning the light-emitting element layer, including the light-emitting element, on the second base layer; and A positioning light control layer is provided, the light control layer comprising a dam protruding in the thickness direction of the second base layer and a color conversion layer comprising quantum dots in the region surrounded by the dam.

18. The method of manufacturing a display device according to claim 17, wherein, Joining the first panel and the second panel includes: Join the first panel and the second panel such that the center of the embankment and the center of the spacer coincide in the cross-sectional view.

19. The method of manufacturing a display device according to claim 17, wherein, The diameter of the spacer is greater than the width of the embankment that overlaps with the spacer.

20. The method of manufacturing a display device according to claim 17, wherein, The upper surface of the spacer is adjacent to the first panel, and the lower surface of the spacer is adjacent to the second panel. In the cross-sectional view, the length of the upper surface of the spacer is longer than the length of the lower surface of the spacer.

21. An electronic device comprising: Processor, used to provide image data signals; as well as A display device for displaying an image based on the image data signal. The display device includes: Display layer; A light control layer, on the display layer, includes a dam and a color conversion layer, the light control layer further including an opening, the dam not being positioned in the opening; A color filter layer is placed on the light control layer and includes a color filter and a light-blocking structure; and A spacer is positioned between the embankment and the light-blocking structure and partially overlaps with the opening.

22. The electronic device according to claim 21, wherein, The diameter of the spacer is greater than the width of the embankment that overlaps with the spacer.

23. The electronic device according to claim 22, wherein, In the cross-sectional view, the length of the upper surface of the spacer is longer than the length of the lower surface of the spacer.

24. The electronic device according to claim 23, wherein, In the sectional view, the spacer has an inverted trapezoidal shape.

Images