Light-emitting display device

Abstract

The present invention provides a light-emitting display device that can reduce reflectivity without using polarizing plates, improve light efficiency, and enhance reflected hue and visual perception. [Solution] A substrate comprising a plurality of subpixels arranged in a first direction, wherein each subpixel comprises a substrate having an emitting region and a non-emitting region, at least one thin-film transistor disposed in the non-emitting region of the substrate, at least one protective layer disposed on the at least one thin-film transistor, and at least one color filter disposed on the at least one protective layer corresponding to the plurality of subpixels, wherein each of the plurality of subpixels comprises a pixel electrode, an organic emitting layer, a common electrode, and a bank portion defining the aperture region of the pixel electrode, and at least one of the plurality of subpixels may be configured to extend to the center of the pixel electrode in a second direction intersecting the first direction, thereby defining the non-aperture region of the pixel electrode.

Description

Technical Field

[0001] This specification relates to a light-emitting display device.

Background Art

[0002] As the information society develops, the requirements for display devices for displaying images are increasing in various forms. Accordingly, in recent years, display devices such as liquid crystal display devices (LCDs), organic light-emitting display devices (OLEDs), micro light-emitting diode display devices (Micro LED Displays), and quantum dot display devices (QDs) have been utilized.

[0003] Among display devices, an organic light-emitting display device is a self-luminance type, and holes and electrons are respectively injected into a light-emitting layer from an anode electrode for hole injection and a cathode electrode for electron injection. When excitons formed by the injected holes and electrons fall from an excited state to a ground state, light is emitted to display an image.

[0004] Such an organic light-emitting display device mainly uses a polarizing plate on a display surface of a panel to reduce external light reflection. However, when an organic light-emitting display device uses a polarizing plate, there is a problem that the transmittance decreases, thereby reducing the panel efficiency and increasing power consumption.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The problem to be solved by one or more embodiments of this specification is to provide a light-emitting display device that can reduce reflectivity without using a polarizing plate, improve light efficiency, and improve reflected color and visual perception.

[0006] The problem to be solved by one or more embodiments of this specification is to provide a light-emitting device that can reduce reflectivity while minimizing the addition of a masking process, thereby improving light efficiency and enhancing reflected hue and visual perception.

[0007] The problems addressed by one or more embodiments of this specification are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0008] A light-emitting display device according to one or more embodiments of this specification includes a substrate having a plurality of subpixels arranged in a first direction, each subpixel having a light-emitting region and a non-light-emitting region, the substrate having at least one thin-film transistor disposed in the non-light-emitting region of the substrate, at least one protective layer disposed on the at least one thin-film transistor, and at least one color filter disposed on the at least one protective layer in at least some of the plurality of subpixels, wherein each of the plurality of subpixels has a pixel electrode, a light-emitting layer, a common electrode, and a bank portion defining the aperture region of the pixel electrode, and in at least one of the plurality of subpixels, the bank portion may further include a non-aperture bank portion extending to the center of the pixel electrode in a first direction or a second direction intersecting the first direction and defining the non-aperture region of the pixel electrode.

[0009] Specific details, other than the solutions to the problems mentioned above, are included in the following descriptions and drawings.

[0010] According to one or more embodiments of this specification, it is possible to provide a light-emitting device that can reduce reflectivity without using polarizing plates, improve light efficiency, and enhance reflected hue and visual perception.

[0011] According to one or more embodiments of this specification, it is possible to provide a light-emitting device that can reduce reflectivity while minimizing the addition of a masking process, thereby improving light efficiency and enhancing reflected hue and visual perception.

[0012] The light-emitting display devices according to one or more embodiments of this specification can eliminate polarizing plates while minimizing the addition of masking steps, thereby simplifying the manufacturing process and realizing ESG (Environmental, Social, Governance) effects by reducing greenhouse gases that may be generated during the manufacturing process.

[0013] The effects described herein are not limited to those mentioned above, and any other effects not mentioned will be clearly understood by those skilled in the art from the following description.

[0014] Since the problem to be solved, the means of solving the problem, and the effects described above do not specify the essential features of the claims, the scope of rights of the claims is not limited by the matters described in the content of the invention. [Brief explanation of the drawing]

[0015] [Figure 1] This figure shows a light-emitting device according to an embodiment of this specification. [Figure 2] This is a circuit diagram of a subpixel of a light-emitting display device according to the embodiments described herein. [Figure 3] This figure shows the pixel structure of a light-emitting display device according to the embodiments described herein. [Figure 4] This figure shows the pixel bank and color filter according to the embodiments described herein. [Figure 5] This is a cross-sectional view taken along the line I-I' shown in Figure 4 according to the embodiments of this specification. [Figure 6] This figure shows the pixel bank and color filter according to one embodiment of this specification. [Figure 7] This is a cross-sectional view taken along line II-II' shown in Figure 6 according to one embodiment of this specification. [Figure 8] A diagram showing a bank portion of pixels and a color filter according to another embodiment of this specification. [Figure 9] A cross-sectional view of line III-III' shown in FIG. 8 according to another embodiment of this specification. [Figure 10] A diagram showing a bank portion of pixels and a color filter according to another embodiment of this specification. [Figure 11] A cross-sectional view of line IV-IV' shown in FIG. 10 according to another embodiment of this specification. [Figure 12] A diagram showing a bank portion of pixels and a color filter according to another embodiment of this specification. [Figure 13] A cross-sectional view of line V-V' shown in FIG. 12 according to another embodiment of this specification. [Figure 14] A diagram showing a bank portion of pixels and a color filter according to another embodiment of this specification. [Figure 15] A cross-sectional view of line VI-VI' shown in FIG. 14 according to another embodiment of this specification. [Figure 16] A diagram showing a bank portion of pixels and a color filter according to another embodiment of this specification. [Figure 17] A cross-sectional view of line VII-VII' shown in FIG. 16 according to another embodiment of this specification. [Figure 18] A diagram showing a bank portion of pixels and a color filter according to another embodiment of this specification. ]> [Figure 19] A diagram showing a bank portion of pixels and a color filter according to another embodiment of this specification. [Figure 20] A diagram showing a bank portion of pixels and a color filter according to another embodiment of this specification. [Figure 21] A cross-sectional view of line VIII-VIII' shown in FIG. 20 according to another embodiment of this specification. [Figure 22] A diagram showing a bank portion of pixels and a color filter according to another embodiment of this specification. [Figure 23] A cross-sectional view of line IX-IX' shown in FIG. 22 according to another embodiment of this specification. [Modes for carrying out the invention]

[0016] The advantages and features of this specification, and the methods for achieving them, will become apparent by referring to the examples described below in detail with accompanying figures. However, this specification is not limited to the examples disclosed below, but can be embodied in a variety of different forms, and these examples are provided merely to complete the disclosure of this specification and to fully inform those who have ordinary skill in the art to which this specification belongs of the scope of the invention, and this specification is defined only by the claims.

[0017] The shapes, sizes, proportions, angles, numbers, etc., disclosed in the figures used to illustrate the embodiments of this specification are illustrative, and this specification is not limited to what is shown in the figures. Throughout the specification, the same drawing number refers to the same component. In this specification, if a specific description of the relevant prior art is deemed to unnecessarily obscure the gist of this specification, such detailed description will be omitted.

[0018] Wherever "contains," "has," "consists of," etc., as used herein, other parts may be added unless "only" is used. When a component is expressed singularly, it includes cases where it contains multiple components unless otherwise explicitly stated.

[0019] In interpreting the constituent elements, even if there is no separate explicit mention of the error range, it shall be interpreted as including the error range.

[0020] When describing spatial relationships, for example, if the positional relationship between two parts is described using phrases such as "above," "above," "below," or "beside," then one or more other parts may be located between the two parts, unless expressions such as "immediately" or "directly" are used.

[0021] When describing temporal relationships, for example, when a temporal sequence is described using phrases like "after," "following," "next," or "before," it can include non-continuous events unless expressions like "immediately" or "directly" are used.

[0022] The terms "first," "second," etc., are used to describe various components, but these components are not limited by these terms. These terms are simply used to distinguish one component from another. Therefore, the first component referred to below may also be the second component within the technical concept of this specification.

[0023] In describing the components of this specification, terms such as 1st, 2nd, A, B, (a), or (b) may be used. Such terms are used solely to distinguish a component from other components, and do not limit the nature, order, sequence, or number of the component in question.

[0024] When a component is described as “connecting,” “joining,” “attaching,” or “adhering” to another component, it should be understood that the component may directly connect, join, attach, or adhere to the other component, but that other components may also be interposed between each component that can indirectly connect, join, attach, or adhere to it, unless otherwise explicitly stated.

[0025] Where it is stated that a component or layer "contacts" or "overlaps" with another component or layer, it should be understood that while a component or layer may directly contact or overlap with another component or layer, other components may also be interposed between each component that may indirectly contact or overlap, unless otherwise explicitly stated.

[0026] "At least one" must be understood to include all combinations of one or more of the relevant components. For example, "at least one of the first, second, and third components" could mean not only the first, second, or third component, but also all combinations of two or more of the first, second, and third components.

[0027] Each feature of the various embodiments described herein can be combined or combined with one another, either partially or as a whole, and various technical interdependencies and drives are possible. Each embodiment can be implemented independently of one another or in conjunction with one another.

[0028] The embodiments of this specification are described below through the attached figures and examples. The scales of the components shown in the figures are different from those of actual components, and are not limited to those shown in the figures, as they are used for illustrative purposes.

[0029] Figure 1 shows a light-emitting device according to an embodiment of this specification.

[0030] In the following, the X-axis indicates the direction parallel to the scan line (or gate line), the Y-axis indicates the direction parallel to the data line, and the Z-axis indicates the height direction of the light-emitting display device.

[0031] Although the light-emitting display devices described herein primarily consist of examples of organic light-emitting displays, they can also be implemented as liquid crystal displays, quantum dot light-emitting diodes, or electrophoresis displays.

[0032] Referring to Figure 1, the light-emitting display device according to the embodiment of this specification may include a display panel 110, a scan drive unit 120 (or gate drive unit) built into the display panel 110, a data drive unit 130 connected to the display panel 110, a timing control unit 160 that controls the scan drive unit 120 and the data drive unit 130, and a power supply circuit 170.

[0033] The display panel 110 may include a display area (DA) and a non-display area (NDA) arranged around the display area (DA). The display panel 110 can display an image by providing pixels (P) in the display area (DA). Each pixel (P) may include multiple subpixels (SP). The structure of the subpixels (SP) can be varied in various ways depending on the type of light-emitting device. For example, the subpixels (SP) can be configured in a top emission, bottom emission, or dual emission manner depending on their structure. A subpixel (SP) is a unit that can form a specific type of color filter or emit its own hue without forming a color filter. A subpixel (SP) may have one or more different light-emitting areas depending on its light-emitting characteristics. For example, multiple subpixels (SPs) can be arranged in a stripe or quad configuration, but the embodiments described herein are not limited thereto. The color type, arrangement type, and arrangement order of the subpixels (SPs) can be configured in various ways depending on the light emission characteristics, element lifespan, and device specifications.

[0034] The display panel 110 can be configured with data lines (DL) and scan lines (SL) (or gate lines) connected to subpixels (SP). The data lines (DL) can be arranged to intersect with the scan lines (SL). Each subpixel (SP) of the display panel 110 can be connected to any one of the data lines (DL) and any one of the scan lines (SL). The data lines (DL) can supply data voltage supplied from the data drive unit 130 to each subpixel (SP). The scan lines (SL) can supply scan signals supplied from the scan drive unit 120 to each subpixel (SP).

[0035] Each subpixel (SP) is turned on by a scan signal, and when the data voltage of the data line (DL) is supplied to the gate electrode of the drive transistor, the light-emitting element can emit light due to the drain-source current of the drive transistor. The scan drive unit 120 can receive a scan control signal (GCS) input from the timing control unit 160. The scan drive unit 120 can use the scan control signal (GCS) to supply a scan signal or an illumination control signal to the scan line (SL).

[0036] The scan drive unit 120 can be configured in the non-display area (NDA) on one or both sides of the display area (DA) using a GIP (gate driver in panel) method. Alternatively, the scan drive unit 120 can be manufactured as a drive chip, mounted on a flexible film, and attached to the non-display area (NDA) on one or both sides of the display area (DA) using a TAB (tape automated bonding) method.

[0037] The data drive unit 130 can receive digital video data (DATA) and data control signals (DCS) from the timing control unit 160. The data drive unit 130 can use the data control signals (DCS) to convert the digital video data (DATA) into analog positive / negative data voltages and supply them to the data line (DL).

[0038] The timing control unit 160 can receive digital video data (DATA) and timing signals from the host system. The timing signals may include a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, and a dot clock. The vertical synchronization signal is a signal that defines one frame period. The horizontal synchronization signal is a signal that defines one horizontal period required to supply data voltage to a pixel of one horizontal line on the display panel 110. The data enable signal is a signal that defines the period during which valid data is input. The dot clock is a signal that repeats at a predetermined short period.

[0039] The timing control unit 160 can generate a data control signal (DCS) to control the operating timing of the data drive unit 130 based on the timing signal, and a scan control signal (GCS) to control the operating timing of the scan drive unit 120. The timing control unit 160 can output the scan control signal (GCS) to the scan drive unit 120 and output digital video data (DATA) and data control signal (DCS) to the data drive unit 130.

[0040] The power supply circuit 170 can generate and supply multiple drive voltages necessary for the operation of all circuit configurations of the light-emitting display device using the input voltage. The power supply circuit 170 can generate and supply a first power supply voltage (EVDD) (or pixel power supply voltage), a second power supply voltage (EVSS) (or common power supply voltage), and an initialization voltage (Vref) (or reference voltage) to the display panel 110. The power supply circuit 170 can generate and supply various drive voltages necessary for the operation of the scan drive unit 120, the data drive unit 130, and the timing control unit 160.

[0041] Figure 2 is a circuit diagram of a subpixel of a light-emitting device according to an embodiment of this specification.

[0042] Referring to Figure 2, each pixel (P) includes a plurality of subpixels (SPs) that constitute a unit pixel, and each of the plurality of subpixels (SPs) may include a pixel circuit and light-emitting element (ED) having a 3T(Transistor)1C(Capacitor) structure including a drive transistor (DR), a first switching transistor (TR1), a second switching transistor (TR2), and a storage capacitor (Cst), but the embodiments herein are not limited thereto. For example, each subpixel (SP) may further include a compensation circuit, in which case it may have various structures such as 3T2C, 4T1C, 4T2C, 5T1C, 5T2C, 6T1C, 6T2C, 7T1C, 7T2C, etc.

[0043] Each subpixel (SP) may have at least one thin-film transistor (DR, TR1, TR2) that includes a gate electrode, a source electrode, and a drain electrode. The source and drain electrodes are not fixed and can be changed by the voltage and current direction applied to the gate electrode; therefore, one of the source and drain electrodes may be represented as the first electrode and the other as the second electrode. At least one thin-film transistor (DR, TR1, TR2) may be made of at least one of the following materials: polysilicon semiconductor, amorphous silicon semiconductor, or oxide semiconductor. The transistors (DR, TR1, TR2) may be P-type or N-type, or a mixture of P-type and N-type.

[0044] A drive transistor (DR) is a transistor for driving an ED and may include a first node (N1) to which a data voltage (Vdata) is applied, a second node (N2) connected to the pixel electrode (first electrode or anode electrode) of the ED, and a third node (N3) connected to a first power supply voltage line (VDDL) (or pixel power supply voltage line) to which a first power supply voltage (EVDD) (or pixel power supply voltage) is applied. For example, the drive transistor (DR) may generate a data current from the first power supply voltage (EVDD) supplied from the first power supply voltage line (VDDL) and supply it to the first electrode of the ED.

[0045] A first switching transistor (TR1) can supply a data voltage (Vdata) from a data line (DL) to the first node (N1) of a drive transistor (DR), a second switching transistor (TR2) can supply a reference voltage (Vref) from a reference line (REFL) to the second node (N2) of a drive transistor (DR), or output the voltage of the second node (N2) of a drive transistor (DR), and a storage capacitor (Cst) can be connected between the first node (N1) and the second node (N2) of a drive transistor (DR) and maintain the data voltage (Vdata) supplied to the drive transistor (DR) for one frame, but the embodiments herein are not limited thereto.

[0046] A light-emitting element (ED) may have a pixel electrode (first electrode or anode electrode) connected to the second node (N2) of a drive transistor (DR), and a common electrode (second electrode or cathode electrode) connected to a second power supply voltage line (VSSL). The light-emitting element (ED) may have a light-emitting layer (or organic light-emitting layer) between the first and second electrodes that emits light in response to the drive current generated by the drive transistor (DR). The pixel electrodes of the light-emitting element (ED) may be independent electrodes for each light-emitting element, and the common electrode and light-emitting layer of the light-emitting element (ED) may be a common layer shared by the entire light-emitting element, but the embodiments herein are not limited thereto.

[0047] Figure 3 shows the pixel structure of a light-emitting display device according to an embodiment of this specification. Figure 4 shows the pixel bank and color filter according to an embodiment of this specification. Figure 5 is a cross-sectional view of the line I-I' shown in Figure 4, according to an embodiment of this specification.

[0048] Referring to Figures 3 to 5, the light-emitting display device according to the embodiments of this specification may include pixels (P), data lines (DL), scan lines (SL) (or gate lines), a first power supply voltage line (VDDL), pixel circuits (CA1, CA2, CA3, CA4), at least one color filter (CF1, CF3, CF4), and a bank section (BA).

[0049] A pixel (P) can contain multiple subpixels (SP1, SP2, SP3, SP4). Multiple subpixels (SP1, SP2, SP3, SP4) can contain first to fourth subpixels (SP1, SP2, SP3, SP4). The first to fourth subpixels (SP1, SP2, SP3, SP4) can be arranged in a first direction (or X-axis direction) or a second direction (or Y-axis direction). For example, the first to fourth subpixels (SP1, SP2, SP3, SP4) can be arranged adjacent to each other in the first direction (or X-axis direction). The first to fourth subpixels (SP1, SP2, SP3, SP4) can contain light-emitting regions (EA1, EA2, EA3, EA4) and non-light-emitting regions (NEA).

[0050] The light-emitting regions (EA1, EA2, EA3, EA4) can correspond to the regions that emit light in a pixel (P). The light-emitting regions (EA1, EA2, EA3, EA4) may include first to fourth light-emitting regions (EA1, EA2, EA3, EA4) that emit light of different colors. For example, the first to fourth light-emitting regions (EA1, EA2, EA3, EA4) can be superimposed on the aperture region (OA) of the pixel electrode (AE) (first electrode or anode electrode) defined by the bank region (BA).

[0051] The first to fourth light-emitting regions (EA1, EA2, EA3, EA4) can be superimposed with at least one color filter (CF1, CF3, CF4) corresponding to the first to fourth subpixels (SP1, SP2, SP3, SP4). For example, the first to fourth light-emitting regions (EA1, EA2, EA3, EA4) can be superimposed with the aperture region (OA) of the pixel electrode (AE) and at least one color filter (CF1, CF3, CF4).

[0052] The first to fourth light-emitting regions (EA1, EA2, EA3, EA4) can emit light of different colors through at least one color filter (CF1, CF3, CF4). For example, at least one color filter (CF1, CF3, CF4) can be made of an organic material that transmits light of different colors from each other. At least one color filter (CF1, CF3, CF4) may include a first color filter (CF1) that transmits red light, a third color filter (CF3) that transmits blue light, and a fourth color filter (CF4) that transmits green light. For example, the first light-emitting region (EA1) of the first subpixel (SP1) can emit red light through the first color filter (CF1), the second light-emitting region (EA2) of the second subpixel (SP2) does not have a color filter and can emit white light, the third light-emitting region (EA3) of the third subpixel (SP3) can emit blue light through the third color filter (CF3), and the fourth light-emitting region (EA4) of the fourth subpixel (SP4) can emit green light through the fourth color filter (CF4).

[0053] The non-emitting area (NEA) may include data lines (DL), scan lines (SL) (or gate lines), the first power supply voltage line (VDDL), and pixel circuits (CA1, CA2, CA3, CA4). The non-emitting area (NEA) may be superimposed on the bank area (BA). For example, the non-emitting area (NEA) may be the area of ​​the first to fourth subpixels (SP1, SP2, SP3, SP4) excluding the first to fourth light-emitting areas (EA1, EA2, EA3, EA4).

[0054] A scan line (SL) extending in a first direction (or X-axis direction) can be placed in the non-emitting area (NEA), and a data line (DL) and a first power supply voltage line (VDDL) extending in a second direction (or Y-axis direction) intersecting the first direction can be placed. A second power supply voltage line (VSSL) extending in a second direction can also be placed in the non-emitting area (NEA), but the embodiments herein are not limited thereto.

[0055] In the non-emissive area (NEA), pixel circuits (CA1, CA2, CA3, CA4) corresponding to each subpixel (SP1, SP2, SP3, SP4) can be arranged. For example, as shown in Figure 2, each pixel circuit (CA1, CA2, CA3, CA4) may include at least one thin-film transistor (DR, TR1, TR2) and a storage capacitor (Cst). The at least one thin-film transistor (DR, TR1, TR2) may include a drive transistor (DR), a first switching transistor (TR1), and a second switching transistor (TR2), but the embodiments herein are not limited thereto.

[0056] Referring to Figure 5, the light-emitting display device according to the embodiments of this specification may include a substrate 111, data lines (DL), a first power supply voltage line (VDDL), a buffer layer (BF), a protective layer (PAS), at least one color filter (CF1, CF3, CF4), a planarization layer (OC), a pixel electrode (AE), an organic light-emitting layer (EL), a common electrode (CE), and a bank section (BA).

[0057] At least a portion of at least one signal line can be placed on the substrate 111. For example, a data line (DL) and a first power supply voltage line (VDDL) can be placed on the substrate 111. A reference line (REFL) and a second power supply voltage line (VSSL) can also be placed on the substrate 111, but the embodiments herein are not limited thereto. For example, at least one signal line placed at the bottom edge of the substrate 111 can be made of the same material and in the same layer as the light-shielding layer placed in the pixel circuits (CA1, CA2, CA3, CA4). For example, the light-shielding layer can serve to block external light incident on the active layer of the thin-film transistor. The light-shielding layer can be made of a single or multiple layer of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0058] A buffer layer (BF) can be placed on the substrate 111. The buffer layer (BF) can be configured to cover at least one signal line and a light-shielding layer placed on the substrate 111. At least one protective layer and at least one thin-film transistor can be placed on the buffer layer (BF). For example, at least one protective layer may include a passivation layer (PAS). The passivation layer (PAS) may be silicon oxide (SiO X ), silicon nitride (SiN X ), can be composed of a single or multiple layer containing an inorganic insulating material such as aluminum oxide (Al2O3).

[0059] At least one color filter (CF1, CF3, CF4) can be placed on the passivation layer (PAS). At least one color filter (CF1, CF3, CF4) can be placed to correspond to the first subpixel (SP1), the third subpixel (SP3), and the fourth subpixel (SP4) of the first to fourth subpixels (SP1, SP2, SP3, SP4). A color filter may not be placed on the second subpixel (SP2) of the first to fourth subpixels (SP1, SP2, SP3, SP4). For example, a first color filter (CF1) that converts white light emitted by the organic light-emitting layer (EL) to red can be placed in the first light-emitting region (EA1) of the first subpixel (SP1). A color filter may not be placed in the second light-emitting region (EA2) of the second subpixel (SP2), allowing the white light emitted by the organic light-emitting layer (EL) to be emitted as is. A third color filter (CF3) can be placed in the third light-emitting region (EA3) of the third subpixel (SP3) to convert the white light emitted by the organic light-emitting layer (EL) to blue light. A fourth color filter (CF4) can be placed in the fourth light-emitting region (EA4) of the fourth subpixel (SP4) to convert the white light emitted by the organic light-emitting layer (EL) to green light.

[0060] A planarization layer (OC) (or overcoat layer) can be placed on the passivation layer (PAS) and at least one color filter (CF1, CF3, CF4). The planarization layer (OC) flattens the steps caused by at least one signal line, at least one thin-film transistor, and at least one color filter (CF1, CF3, CF4) placed on the substrate 111, and can be made of an organic insulating material. For example, the planarization layer (OC) can be made of organic materials such as acrylic resin, epoxy resin, phenolic resin, polyamide resin, and polyimide resin, but the examples herein are not limited to these.

[0061] On the planarization layer (OC), pixel electrodes (AE) (first electrode or anode electrode), organic light-emitting layer (EL), common electrode (CE) (second electrode or cathode electrode), and bank section (BA) that constitute the light-emitting element (ED) can be arranged.

[0062] Pixel electrodes (AEs) can be placed on the planarization layer (OC). Pixel electrodes (AEs) can be patterned and arranged on the planarization layer (OC) for each sub-pixel (SP1, SP2, SP3, SP4). Pixel electrodes (AEs) can be made of transparent or semi-transparent metallic materials. For example, pixel electrodes (AEs) can be made of transparent conductive materials (TCOs) such as indium tin oxide (ITO) or indium zinc oxide (IZO), which can transmit light. Pixel electrodes (AEs) can be made of semi-transparent metallic materials such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag). For example, pixel electrodes (AEs) made of semi-transparent metallic materials can have their light extraction efficiency improved by a microcavity. Pixel electrodes (AEs) can be the anode electrodes of light-emitting elements (EDs). According to the examples herein, the pixel electrode (AE) may further include a low-reflection metal layer. For example, the low-reflection metal layer may include a metal oxide or an alloy oxide. For example, the low-reflection metal layer may include copper oxide (CuOx), nickel oxide (NiOx), molybdenum oxide (MoOx), or tungsten oxide (WOx), but the examples herein are not limited thereto.

[0063] The bank portion (BA) can be positioned on the pixel electrode (AE) and the planarization layer (OC). The bank portion (BA) can be positioned on the planarization layer (OC) so as to cover a portion of the edge of the pixel electrode (AE). The bank portion (BA) can be configured to define the aperture region (OA) of the pixel electrode (AE). The aperture region (OA) of the pixel electrode (AE) can correspond to the light-emitting regions (EA1, EA2, EA3, EA4) of each subpixel (SP1, SP2, SP3, SP4). For example, the aperture region (OA) of the pixel electrode (AE) exposed by the bank portion (BA) can consist of light-emitting regions (EA1, EA2, EA3, EA4) that emit light in direct contact with the organic light-emitting layer (EL).

[0064] A bank (BA) can be placed in the non-emitting area (NEA) of each subpixel (SP1, SP2, SP3, SP4). The bank (BA) can be superimposed on the pixel circuits (CA1, CA2, CA3, CA4) and at least one signal line. For example, the bank (BA) can be composed of an organic layer such as acrylic resin, epoxy resin, phenolic resin, polyamide resin, or polyimide resin. According to the embodiments herein, the bank (BA) may be a black bank containing at least one of an absorbent material or a black material. For example, the bank (BA) may contain a black resin or an insulating absorbent material such as graphite.

[0065] An organic light-emitting layer (EL) can be placed on the pixel electrode (AE) and the bank portion (BA). The organic light-emitting layer (EL) may include a hole transporting layer, an emission material layer, and an electron transporting layer. For example, when a voltage is applied to the pixel electrode (AE) and the common electrode (CE), holes and electrons move to the organic light-emitting layer (EL) via the hole transporting layer and electron transporting layer, respectively, and can combine with each other to emit light. The organic light-emitting layer (EL) may be a common layer formed in common on multiple subpixels (SP1, SP2, SP3, SP4). For example, the organic light-emitting layer (EL) may be a white light-emitting layer that emits white light.

[0066] A common electrode (CE) can be placed on the organic light-emitting layer (EL). The common electrode (CE) may be a common layer formed in common for multiple subpixels (SP1, SP2, SP3, SP4). The common electrode (CE) can be placed on the pixel electrodes (AE) and organic light-emitting layer (EL) that are in contact with each other to constitute a light-emitting element (ED). For example, the common electrode (CE) can be formed from a highly reflective metallic material such as an aluminum-titanium laminated structure (Ti / Al / Ti), an aluminum-ITO laminated structure (ITO / Al / ITO), an Ag alloy, an Ag alloy-ITO laminated structure (ITO / Ag alloy / ITO), a MoTi alloy, and a MoTi alloy-ITO laminated structure (ITO / MoTi alloy / ITO). The Ag alloy may be an alloy of silver (Ag), palladium (Pd), and copper (Cu). The MoTi alloy may be an alloy of molybdenum (Mo) and titanium (Ti). The common electrode (CE) may be the cathode electrode of the light-emitting element (ED). According to the examples herein, the common electrode (CE) may further include a low-reflection metal layer. For example, the low-reflection metal layer may include a metal oxide or an alloy oxide. For example, the low-reflection metal layer may include copper oxide (CuOx), nickel oxide (NiOx), molybdenum oxide (MoOx), or tungsten oxide (WOx), but the examples herein are not limited thereto.

[0067] According to the embodiments of this specification, the back surface of the substrate 111 may further include a transmittance control film. For example, the transmittance control film may include, but is not limited to, at least one of a transparent film or an absorbent film.

[0068] Figure 6 shows the pixel bank and color filter according to one embodiment of this specification. Figure 7 is a cross-sectional view taken along line II-II' shown in Figure 6, according to one embodiment of this specification. Figures 6 and 7 show embodiments in which the configuration of the bank and color filter has been changed in the light-emitting display device described with reference to Figures 1 to 5. In the following description with reference to Figures 6 and 7, the same reference numerals are used for the remaining identical components, except for the modified components, and redundant explanations are omitted or simplified.

[0069] Referring to Figures 6 and 7, an embodiment of the light-emitting device according to this specification can be configured such that the bank portion (BA) of at least one subpixel (SP1, SP2, SP3, SP4) extends to the center of the pixel electrode (AE) in a second direction (or Y-axis direction) intersecting a first direction (or X-axis direction), thereby defining a non-aperture region (NOA) of the pixel electrode (AE). For example, the aperture region (OA) of the pixel electrode (AE) can be superimposed on the light-emitting regions (EA1, EA2, EA3, EA4) of each subpixel (SP1, SP2, SP3, SP4), and the non-aperture region (NOA) of the pixel electrode (AE) can be superimposed on the non-light-emitting region (NEA) of each subpixel (SP1, SP2, SP3, SP4).

[0070] The bank portion (BA) of at least one subpixel (SP1, SP2, SP3, SP4) may include a non-aperture bank portion (NBA) located in the non-aperture region (NOA) of the pixel electrode (AE). For example, the non-aperture bank portion (NBA) can be located between the pixel electrode (AE) and the organic light-emitting layer (EL).

[0071] For example, all or more of at least one subpixel (SP1, SP2, SP3, SP4) may include a non-aperture bank (NBA). The non-aperture bank (NBA) can be positioned parallel to a first direction (or the X-axis direction) on the pixel electrodes (AE) of the subpixels (SP1, SP2, SP3, SP4). For example, the non-aperture bank (NBA) can be configured to extend in a second direction from the lower end of the pixel electrode (AE) to the center of the pixel electrode (AE). The non-aperture bank (NBA) of the subpixels (SP1, SP2, SP3, SP4) may have different overlapping regions with the pixel electrodes (AE) of the subpixels (SP1, SP2, SP3, SP4). For example, the non-aperture bank portion (NBA) of the second subpixel (SP2) can be configured to have a larger overlapping area with the pixel electrode (AE) than the non-aperture bank portions (NBA) of the other subpixels (SP1, SP3, SP4), but the embodiments herein are not limited thereto. For example, the non-aperture bank portion (NBA) can cover a portion of the pixel electrode (AE) and reduce the aperture ratio of the light-emitting portion. In addition, the non-aperture bank portion (NBA) can reduce the cell reflectance of the light-emitting portion by absorbing a portion of the internal light that passes through the pixel electrode (AE) and is re-reflected by the common electrode (CE).

[0072] At least one color filter (CF1, CF3, CF4) can be positioned so as not to overlap with the non-aperture area (NOA) of the pixel electrode (AE). For example, at least one color filter (CF1, CF3, CF4) may not be placed below the non-aperture bank (NBA). For example, the non-aperture bank (NBA) may not overlap with at least one color filter (CF1, CF3, CF4). For example, the non-aperture bank (NBA) can be positioned between the light-emitting areas (EA1, EA2, EA3, EA4) of multiple subpixels (SP1, SP2, SP3, SP4) and the pixel circuits (CA1, CA2, CA3, CA4) of multiple subpixels (SP1, SP2, SP3, SP4).

[0073] According to one embodiment of this specification, the non-aperture bank portions (NBA) of multiple subpixels (SP1, SP2, SP3, SP4) are configured to extend from the bank portion (BA) of the non-emission area (NEA) to the center of the pixel electrode (AE) of the corresponding subpixel (SP1, SP2, SP3, SP4), defining the non-aperture area (NOA) of the pixel electrode (AE). This allows for the optimization of the aperture ratio of the emission areas (EA1, EA2, EA3, EA4) while minimizing the addition of masking steps. As a result, the light-emitting device according to one embodiment of this specification can reduce the reflectivity that increases due to the absence of polarizers, thereby improving light efficiency.

[0074] Figure 8 shows the pixel bank and color filter according to another embodiment of this specification. Figure 9 is a cross-sectional view taken along line III-III' shown in Figure 8 according to another embodiment of this specification. Figures 8 and 9 show embodiments in which the configuration of the bank and color filter has been changed in the light-emitting device described with reference to Figures 1 to 8. In the following description with reference to Figures 8 and 9, the same reference numerals are used for the remaining identical components, except for the modified components, and redundant explanations are omitted or simplified.

[0075] Referring to Figures 8 and 9, other embodiments of the light-emitting display device herein can be configured such that the bank portion (BA) of at least one subpixel (SP1, SP2, SP3, SP4) extends to the center of the pixel electrode (AE) in a second direction (or Y-axis direction) intersecting a first direction (or X-axis direction), thereby defining a non-aperture region (NOA) of the pixel electrode (AE).

[0076] The bank portion (BA) of at least one subpixel (SP1, SP2, SP3, SP4) may include a non-aperture bank portion (NBA) located in the non-aperture region (NOA) of the pixel electrode (AE). For example, the non-aperture bank portion (NBA) can be located between the pixel electrode (AE) and the organic light-emitting layer (EL).

[0077] Non-aperture bank portions (NBAs) can be arranged parallel to a first direction (or the X-axis direction) for multiple subpixels (SP1, SP2, SP3, SP4). For example, the non-aperture bank portion (NBA) can be configured to extend in a second direction from the lower end of the pixel electrode (AE) to the center of the pixel electrode (AE). The non-aperture bank portions (NBAs) of multiple subpixels (SP1, SP2, SP3, SP4) may have different overlapping areas with the pixel electrodes (AEs). For example, the non-aperture bank portion (NBA) of a second subpixel (SP2) can be configured to overlap the pixel electrode (AE) in a larger area than the non-aperture bank portions (NBAs) of other subpixels (SP1, SP3, SP4), but the embodiments herein are not limited thereto. For example, the non-aperture bank portion (NBA) can cover a portion of the pixel electrode (AE) and reduce the aperture ratio of the light-emitting portion. Furthermore, the non-aperture bank (NBA) can reduce the cell reflectivity of the light-emitting portion by absorbing a portion of the internal light that passes through the pixel electrode (AE) and is re-reflected by the common electrode (CE).

[0078] At least one color filter (CF1, CF3, CF4) can be positioned to overlap with the non-aperture area (NOA) of the pixel electrode (AE). For example, at least one color filter (CF1, CF3, CF4) can be positioned below the non-aperture bank area (NBA). For example, the non-aperture bank area (NBA) can overlap with at least one color filter (CF1, CF3, CF4). The non-aperture bank areas (NBA) of multiple subpixels (SP1, SP2, SP3, SP4) may overlap with at least one color filter (CF1, CF3, CF4) in different areas, but the embodiments herein are not limited thereto. For example, the non-aperture bank area (NBA) of a second subpixel (SP2) can overlap with the corresponding pixel electrode (AE), and the non-aperture bank areas (NBA) of other subpixels (SP1, SP3, SP4) can overlap with the corresponding pixel electrode (AE) and at least one color filter (CF1, CF3, CF4). For example, at least one color filter (CF1, CF3, CF4) superimposed on a non-aperture bank (NBA) can absorb some of the external light incident from the outside before it reaches the pixel electrode (AE), further reducing the cell reflectivity of the light-emitting portion.

[0079] According to other embodiments of this specification, the non-aperture bank portions (NBA) of multiple subpixels (SP1, SP2, SP3, SP4) can extend from the bank portion (BA) of the non-emission area (NEA) to the center of the pixel electrode (AE) of the corresponding subpixel (SP1, SP2, SP3, SP4) to define the non-aperture area (NOA) of the pixel electrode (AE). By configuring the NOA to be superimposed with at least one color filter (CF1, CF3, CF4), the aperture ratio and reflected color of the emission area (EA1, EA2, EA3, EA4) can be optimized while minimizing the additional masking process. As a result, the light-emitting display devices according to other embodiments of this specification can reduce the reflectance that increases by not using polarizers, improve light efficiency, and improve reflected hue and visual perception.

[0080] Figure 10 shows the pixel bank and color filter according to another embodiment of this specification. Figure 11 is a cross-sectional view taken along line IV-IV' shown in Figure 10 according to another embodiment of this specification. Figures 10 and 11 show embodiments in which the configuration of the bank and color filter has been changed in the light-emitting device described with reference to Figures 1 to 9. In the following description with reference to Figures 10 and 11, the same reference numerals are used for the remaining identical components, except for the modified components, and redundant explanations are omitted or simplified.

[0081] Referring to Figures 10 and 11, other embodiments of the light-emitting display device herein can be configured such that the bank portion (BA) of at least one subpixel (SP2, SP4) extends to the center of the pixel electrode (AE) in a second direction (or Y-axis direction) intersecting a first direction (or X-axis direction), thereby defining a non-aperture region (NOA) of the pixel electrode (AE).

[0082] The bank portion (BA) of at least one subpixel (SP2, SP4) may include a non-aperture bank portion (NBA) located in the non-aperture region (NOA) of the pixel electrode (AE). For example, the non-aperture bank portion (NBA) may be located between the pixel electrode (AE) and the organic light-emitting layer (EL). For example, the second subpixel (SP2) and the fourth subpixel (SP4) may have a non-aperture bank portion (NBA), while the first subpixel (SP1) and the third subpixel (SP3) may not have a non-aperture bank portion (NBA). For example, the non-aperture bank portion (NBA) may be configured to extend in a second direction from the lower end of the pixel electrode (AE) of the second subpixel (SP2) and the fourth subpixel (SP4) to the center of the pixel electrode (AE). For example, the non-aperture bank portions (NBA) of the second subpixel (SP2) and the fourth subpixel (SP4) can be configured to extend further towards the center of the pixel electrode (AE) in a second direction than the bank portions (BA) of the first subpixel (SP1) and the third subpixel (SP3).

[0083] Referring to Figure 10, the non-aperture bank (NBA) can be placed in the second subpixel (SP2) and fourth subpixel (SP4) instead of the first subpixel (SP1) and third subpixel (SP3). This allows the light-emitting regions (EA1, EA3) of the first and third subpixels (SP1, SP3) to have a larger area than the light-emitting regions (EA2, EA4) of the second and fourth subpixels (SP2, SP4).

[0084] At least one color filter (CF1, CF3, CF4) can be positioned so as not to overlap with the non-aperture area (NOA) of the pixel electrode (AE). For example, a color filter may not be placed in the second subpixel (SP2), and a fourth color filter (CF4) may not be placed in the non-aperture bank area (NBA) of the fourth subpixel (SP4).

[0085] According to other embodiments of this specification, the non-aperture bank portions (NBA) of the second subpixel (SP2) and fourth subpixel (SP4) can extend from the bank portion (BA) of the non-emission area (NEA) to the center of the pixel electrode (AE) of the corresponding subpixel (SP2, SP4), defining the non-aperture area (NOA) of the pixel electrode (AE). By configuring the first subpixel (SP1) and third subpixel (SP3) so as not to include a non-aperture bank portion (NBA), the aperture ratio of the emission areas (EA1, EA2, EA3, EA4) can be optimized while minimizing the additional masking process. As a result, the light-emitting display devices according to other embodiments of this specification can reduce the reflectivity that increases due to the absence of polarizers, thereby improving light efficiency.

[0086] Figure 12 shows the pixel bank and color filter according to another embodiment of this specification. Figure 13 is a cross-sectional view of the line V-V' shown in Figure 12 according to another embodiment of this specification. Figures 12 and 13 show embodiments in which the configuration of the bank and color filter is modified in the light-emitting device described with reference to Figures 1 to 11. For example, Figures 12 and 13 show a modified color filter configuration in the light-emitting device described with reference to Figures 10 and 11. In the following description referring to Figures 12 and 13, the same reference numerals are used for the remaining identical components, except for the modified components, and redundant explanations are omitted or simplified.

[0087] Referring to Figures 12 and 13, other embodiments of the light-emitting display device herein can be configured such that the bank portion (BA) of at least one subpixel (SP2, SP4) extends to the center of the pixel electrode (AE) in a second direction (or Y-axis direction) intersecting a first direction (or X-axis direction), thereby defining a non-aperture region (NOA) of the pixel electrode (AE).

[0088] At least one of the first subpixel (SP1) and third subpixel (SP3) adjacent to the second subpixel (SP2) can be positioned such that at least a portion of its color filter (CF1, CF3) extends in a first direction (or X-axis direction) and overlaps with the second subpixel (SP2). For example, at least a portion of the first color filter (CF1) of the first subpixel (SP1) can be positioned to extend in a first direction and overlap with the non-aperture bank portion (NBA) of the second subpixel (SP2). At least a portion of the third color filter (CF3) of the third subpixel (SP3) can be positioned to extend in a first direction and overlap with the non-aperture bank portion (NBA) of the second subpixel (SP2).

[0089] According to other embodiments of this specification, at least a portion of the third color filter (CF3) of a third subpixel (SP3) may include a color filter extension (CFE) extending in a first direction. The color filter extension (CFE) of the third subpixel (SP3) may extend to an adjacent second subpixel (SP2) in the first direction and be positioned to overlap with the non-aperture bank (NBA) of the second subpixel (SP2). The color filter extension (CFE) of the third subpixel (SP3) may extend to an adjacent fourth subpixel (SP4) in the first direction and be positioned to overlap with the non-aperture bank (NBA) of the fourth subpixel (SP4). The non-aperture bank (NBA) of the fourth subpixel (SP4) may or may not have a fourth color filter (CF4) placed therein. For example, the color filter extension (CFE) of the third subpixel (SP3) can be superimposed on the fourth color filter (CF4) in the non-aperture bank (NBA) of the fourth subpixel (SP4). For instance, the color filter extension (CFE) superimposed on the non-aperture bank (NBA) can absorb some of the external light incident from the outside before it reaches the pixel electrode (AE), further reducing the cell reflectivity of the light-emitting part.

[0090] Referring to Figure 12, the non-aperture bank (NBA) can be placed in the second subpixel (SP2) and fourth subpixel (SP4) instead of the first subpixel (SP1) and third subpixel (SP3). This allows the light-emitting regions (EA1, EA3) of the first and third subpixels (SP1, SP3) to have a larger area than the light-emitting regions (EA2, EA4) of the second and fourth subpixels (SP2, SP4).

[0091] Referring to Figure 13, the color filter extension (CFE) of the third subpixel (SP3) can be positioned in the non-aperture bank (NBA) of the second subpixel (SP2) and the non-aperture bank (NBA) of the fourth subpixel (SP4). For example, the color filter extension (CFE) positioned in the second subpixel (SP2) may overlap with the pixel electrode (AE) of the second subpixel (SP2) but not with the light-emitting region (EA2) of the second subpixel (SP2). For example, the color filter extension (CFE) positioned in the fourth subpixel (SP4) may overlap with the pixel electrode (AE) of the fourth subpixel (SP4) but not with the light-emitting region (EA4) of the fourth subpixel (SP4). Furthermore, the color filter extension (CFE) positioned in the fourth subpixel (SP4) can be positioned parallel to the color filter (CF4) of the fourth subpixel (SP4) in the first direction (or X-axis direction). For example, the fourth subpixel (SP4) can have a color filter (CF4) placed in the light-emitting region (EA4) and the color filter extension (CFE) of the third subpixel (SP3) placed in the non-aperture region (NOA).

[0092] According to other embodiments of this specification, the non-aperture bank portions (NBA) of the second subpixel (SP2) and fourth subpixel (SP4) can extend from the bank portion (BA) of the non-emission area (NEA) to the center of the pixel electrode (AE) of the corresponding subpixel (SP2, SP4), defining the non-aperture area (NOA) of the pixel electrode (AE). The first subpixel (SP1) and third subpixel (SP3) do not include non-aperture bank portions (NBA), and the color filter (CF3) of the third subpixel (SP3) extends to the other adjacent subpixels (SP2, SP4). This configuration allows for the optimization of the aperture ratio and reflected color perception of the emission areas (EA1, EA2, EA3, EA4) while minimizing the additional masking process. As a result, the light-emitting display devices according to other embodiments of this specification can reduce the reflectance that increases by not using polarizers, improve light efficiency, and enhance reflected hue and visual perception.

[0093] Figure 14 shows the pixel bank and color filter according to another embodiment of this specification. Figure 15 is a cross-sectional view of the line VI-VI' shown in Figure 14 according to another embodiment of this specification. Figures 14 and 15 show embodiments in which the configuration of the bank and color filter has been changed in the light-emitting device described with reference to Figures 1 to 13. For example, Figures 14 and 15 show a modified color filter configuration in the light-emitting device described with reference to Figures 12 and 13. In the following description referring to Figures 14 and 15, the same reference numerals are used for the remaining identical components, except for the modified components, and redundant explanations are omitted or simplified.

[0094] Referring to Figures 14 and 15, other embodiments of the light-emitting display device herein may be configured such that the bank portion (BA) of at least one subpixel (SP2) extends to the center of the pixel electrode (AE) in a second direction (or Y-axis direction) intersecting a first direction (or X-axis direction), thereby defining a non-aperture region (NOA) of the pixel electrode (AE).

[0095] The non-aperture bank portion (NBA) of the bank portion (BA) of the second subpixel (SP2) can be located in the non-aperture region (NOA) of the pixel electrode (AE). For example, the non-aperture bank portion (NBA) can be configured to extend in a second direction from the lower end of the pixel electrode (AE) of the second subpixel (SP2) to the center of the pixel electrode (AE). For example, the non-aperture bank portion (NBA) of the second subpixel (SP2) can be configured to extend in a second direction further towards the center of the pixel electrode (AE) than the bank portions (BA) of the first subpixel (SP1), third subpixel (SP3), and fourth subpixel (SP4).

[0096] At least one of the first subpixel (SP1) and third subpixel (SP3) adjacent to the second subpixel (SP2) can be positioned such that at least a portion of the color filter (CF1, CF3) is extended in the first direction (or X-axis direction) and overlaps with the second subpixel (SP2).

[0097] According to other embodiments of this specification, at least a portion of the third color filter (CF3) of a third subpixel (SP3) may include a color filter extension (CFE) extended in the first direction. The color filter extension (CFE) of the third subpixel (SP3) may extend to an adjacent second subpixel (SP2) in the first direction and be positioned to overlap with the non-aperture bank (NBA) of the second subpixel (SP2). For example, a color filter extension (CFE) overlapping with a non-aperture bank (NBA) can absorb some of the external light incident from the outside before it reaches the pixel electrode (AE), further reducing the cell reflectivity of the light-emitting portion.

[0098] Referring to Figure 14, the non-aperture bank (NBA) can be placed in the second subpixel (SP2) instead of the first subpixel (SP1), third subpixel (SP3), and fourth subpixel (SP4). This allows the light-emitting region (EA2) of the second subpixel (SP2) to have a smaller area than the light-emitting regions (EA1, EA3, EA4) of the other subpixels (SP1, SP3, SP4).

[0099] Referring to Figure 15, the color filter extension (CFE) of the third subpixel (SP3) can be positioned in the non-aperture bank (NBA) of the second subpixel (SP2). For example, the color filter extension (CFE) of the third subpixel (SP3) positioned in the second subpixel (SP2) may overlap with the pixel electrode (AE) of the second subpixel (SP2) but not with the light-emitting region (EA2) of the second subpixel (SP2).

[0100] According to other embodiments of this specification, the non-aperture bank portion (NBA) of the second subpixel (SP2) extends from the bank portion (BA) of the non-emission area (NEA) to the center of the pixel electrode (AE) of the corresponding subpixel (SP2), defining the non-aperture area (NOA) of the pixel electrode (AE). The first subpixel (SP), third subpixel (SP3), and fourth subpixel (SP4) do not include a non-aperture bank portion (NBA), and the color filter (CF3) of the third subpixel (SP3) extends to the second subpixel (SP2). By configuring these components, the aperture ratio and reflected color perception of the emission areas (EA1, EA2, EA3, EA4) can be optimized while minimizing the additional masking process. As a result, the light-emitting display devices according to other embodiments of this specification can reduce the reflectance that increases by not using polarizers, improve light efficiency, and enhance reflected hue and visual perception.

[0101] Figure 16 shows the pixel bank and color filter according to another embodiment of this specification. Figure 17 is a cross-sectional view of the line VII-VII' shown in Figure 16 according to another embodiment of this specification. Figures 16 and 17 show embodiments in which the configuration of the bank and color filter has been changed in the light-emitting device described with reference to Figures 1 to 15. In the following description with reference to Figures 16 and 17, the same reference numerals are used for the remaining identical components, except for the modified components, and redundant explanations are omitted or simplified.

[0102] Referring to Figures 16 and 17, other embodiments of the light-emitting display device herein can be configured such that the bank portion (BA) of at least one subpixel (SP2) extends to the center of the pixel electrode (AE) in a second direction (or Y-axis direction) intersecting a first direction (or X-axis direction), thereby defining a non-aperture region (NOA) of the pixel electrode (AE).

[0103] At least a portion of the color filters (CF1, CF3) of the first subpixel (SP1) and third subpixel (SP3) adjacent to the second subpixel (SP2) can be extended in the first direction (or X-axis direction) and positioned to overlap with the second subpixel (SP2).

[0104] According to other embodiments of this specification, at least a portion of the first color filter (CF1) of a first subpixel (SP1) may include a color filter extension (CFE) extended in a first direction, and at least a portion of the third color filter (CF3) of a third subpixel (SP3) may include a color filter extension (CFE) extended in a first direction. For example, the color filter extensions (CFE) of the first subpixel (SP1) and the color filter extensions (CFE) of the third subpixel (SP3) may be superimposed on the pixel electrode (AE) of the second subpixel (SP2). For example, the color filter extension (CFE) of the first subpixel (SP1) may be positioned to superimpose on the aperture region (OA) of the pixel electrode (AE) of the second subpixel (SP2), and the color filter extension (CFE) of the third subpixel (SP3) may be positioned to superimpose on the non-aperture region (NOA) of the pixel electrode (AE) of the second subpixel (SP2). For example, the color filter extension (CFE) of the third subpixel (SP3) can be superimposed on the non-aperture bank (NBA) of the second subpixel (SP2). Alternatively, the color filter extension (CFE) of the first subpixel (SP1) can be positioned to superimpose on the non-aperture region (NOA) of the pixel electrode (AE) of the second subpixel (SP2), and the color filter extension (CFE) of the third subpixel (SP3) can be positioned to superimpose on the aperture region (OA) of the pixel electrode (AE) of the second subpixel (SP2). For example, the color filter extension (CFE) of the first subpixel (SP1) can be superimposed on the non-aperture bank (NBA) of the second subpixel (SP2). For example, the color filter extension (CFE) of the third subpixel (SP3), which is superimposed on the color filter extension (CFE) of the first subpixel (SP1) located in the second light-emitting region (EA2) and the non-aperture bank (NBA), can absorb a portion of the external light incident from the outside before it reaches the pixel electrode (AE), thereby further reducing the cell reflectivity of the light-emitting region.

[0105] Referring to Figure 16, the non-aperture bank (NBA) can be placed in the second subpixel (SP2) instead of the first subpixel (SP1), third subpixel (SP3), and fourth subpixel (SP4). This allows the light-emitting region (EA2) of the second subpixel (SP2) to have a smaller area than the light-emitting regions (EA1, EA3, EA4) of the other subpixels (SP1, SP3, SP4).

[0106] Referring to Figure 17 in conjunction with Figure 15, the color filter extension (CFE) of the third subpixel (SP3) can be positioned in the non-aperture bank (NBA) of the second subpixel (SP2). For example, the color filter extension (CFE) of the third subpixel (SP3) positioned in the second subpixel (SP2) may overlap with the pixel electrode (AE) of the second subpixel (SP2) but not with the light-emitting region (EA2) of the second subpixel (SP2). The color filter extension (CFE) of the first subpixel (SP1) can be positioned in the light-emitting region (EA2) of the second subpixel (SP2). For example, the color filter extension (CFE) of the first subpixel (SP1) positioned in the second subpixel (SP2) can overlap with the pixel electrode (AE) of the second subpixel (SP2) and with the light-emitting region (EA2) of the second subpixel (SP2).

[0107] According to other embodiments of this specification, the non-aperture bank portion (NBA) of the second subpixel (SP2) can extend from the bank portion (BA) of the non-emission area (NEA) to the center of the pixel electrode (AE) of the corresponding subpixel (SP2), defining the non-aperture area (NOA) of the pixel electrode (AE). The first subpixel (SP1), third subpixel (SP3), and fourth subpixel (SP4) do not include a non-aperture bank portion (NBA), and the color filters (CF1, CF3) of the first subpixel (SP1) and third subpixel (SP3) extend to the second subpixel (SP2). This configuration allows for optimization of the aperture ratio and reflected color perception of the emission areas (EA1, EA2, EA3, EA4) while minimizing the additional masking process. As a result, the light-emitting display devices according to other embodiments of this specification can reduce the reflectivity that increases by not using polarizers, improve light efficiency, and enhance reflected hue and visual perception.

[0108] Figure 18 shows a pixel bank and color filter according to another embodiment of this specification. Figure 19 shows a pixel bank and color filter according to another embodiment of this specification. Figures 18 and 19 show embodiments in which the configuration of the bank and color filter is changed in the light-emitting device described with reference to Figures 1 to 17. In the following description with reference to Figures 18 and 19, the same reference numerals are used for the remaining identical components, except for the modified components, and redundant explanations are omitted or simplified.

[0109] Referring to Figure 18, other embodiments of the light-emitting device according to this specification may include a first sub-non-aperture bank portion (NBAa) and a second sub-aperture non-bank portion (NBAb) in which the bank portion (BA) of at least one subpixel (SP2, SP4) is separated from each other in a second direction (or Y-axis direction) with the aperture region (OA) of the pixel electrode (AE) in between.

[0110] The first sub-non-aperture bank portion (NBAa) can extend in a second direction from the lower end of the pixel electrode (AE) to the center of the pixel electrode (AE), and the second sub-non-aperture bank portion (NBAb) can extend in a second direction from the upper end of the pixel electrode (AE) to the center of the pixel electrode (AE).

[0111] The first and second sub-non-aperture bank portions (NBAa, NBAb) can be placed in the second subpixel (SP2) and fourth subpixel (SP4) instead of the first subpixel (SP1) and third subpixel (SP3). This allows the light-emitting regions (EA2, EA4) of the second subpixel (SP2) and fourth subpixel (SP4) to have a larger area than the light-emitting regions (EA1, EA3) of the first subpixel (SP1) and third subpixel (SP3). For example, the first and second sub-non-aperture bank portions (NBAa, NBAb) of the second subpixel (SP2) can be superimposed on the pixel electrode (AE) of the second subpixel (SP2). For example, the first and second sub-non-aperture bank portions (NBAa, NBAb) of the fourth subpixel (SP4) can be superimposed on the pixel electrode (AE) of the fourth subpixel (SP4) and on the color filter (CF4) of the fourth subpixel (SP4).

[0112] According to other embodiments of this specification, the first and second sub-non-aperture bank portions (NBAa, NBAb) are placed in the second sub-pixel (SP2) and the fourth sub-pixel (SP4), but not in the first sub-pixel (SP1) and the third sub-pixel (SP3). By configuring the color filter (CF4) of the fourth sub-pixel (SP4) to overlap with the first and second sub-non-aperture bank portions (NBAa, NBAb), the aperture ratio and reflected color perception of the light-emitting regions (EA1, EA2, EA3, EA4) can be optimized while minimizing the additional masking process. As a result, the light-emitting display devices according to other embodiments of this specification can reduce the reflectance that increases by not using polarizers, improve light efficiency, and enhance reflected hue and visual perception.

[0113] Referring to Figure 19, other embodiments of the light-emitting device according to this specification may include a first non-aperture bank section (NBA1) and a second non-aperture bank section (NBA2).

[0114] The first non-aperture bank (NBA1) can be positioned in the non-aperture region (NOA) of the pixel electrode (AE) of the second subpixel (SP2), and the second non-aperture bank (NBA2) can be positioned in the non-aperture region (NOA) of the pixel electrode (AE) of the fourth subpixel (SP4). For example, the first non-aperture bank (NBA1) and the second non-aperture bank (NBA2) can be configured in different forms from each other. For example, the first non-aperture bank (NBA1) can be configured to extend further towards the center of the pixel electrode (AE) in a second direction than the second non-aperture bank (NBA2).

[0115] The first non-aperture bank portion (NBA1) and the second non-aperture bank portion (NBA2) may not be placed in the first subpixel (SP1) and the third subpixel (SP3), but rather the first non-aperture bank portion (NBA1) may be placed in the second subpixel (SP2), and the second non-aperture bank portion (NBA2) may be placed in the fourth subpixel (SP4). Furthermore, the area in which the first non-aperture bank portion (NBA1) overlaps with the pixel electrode (AE) of the second subpixel (SP2) may be configured to be larger than the area in which the second non-aperture bank portion (NBA2) overlaps with the pixel electrode (AE) of the fourth subpixel (SP4). As a result, the light-emitting regions (EA1, EA3) of the first subpixel (SP1) and the third subpixel (SP3) can be configured to have a larger area than the light-emitting regions (EA2, EA4) of the second subpixel (SP2) and the fourth subpixel (SP4), and the light-emitting region (EA2) of the second subpixel (SP2) can be configured to have a smaller area than the light-emitting region (EA4) of the fourth subpixel (SP4). For example, the first non-aperture bank portion (NBA1) of the second subpixel (SP2) can be superimposed on the pixel electrode (AE) of the second subpixel (SP2). For example, the second non-aperture bank portion (NBA2) of the fourth subpixel (SP4) can be superimposed on the pixel electrode (AE) of the fourth subpixel (SP4) and on the color filter (CF4) of the fourth subpixel (SP4).

[0116] According to other embodiments of this specification, the first and second non-aperture bank sections (NBA1, NBA2) are placed in the second subpixel (SP2) and the fourth subpixel (SP4), but not in the first subpixel (SP1) and the third subpixel (SP3), and the color filter (CF4) of the fourth subpixel (SP4) is configured to overlap with the second non-aperture bank section (NBA2). This minimizes the additional masking process while optimizing the aperture ratio and reflected color perception of the light-emitting regions (EA1, EA2, EA3, EA4). As a result, the light-emitting display devices according to other embodiments of this specification can reduce the reflectance that increases by not using polarizers, improve light efficiency, and enhance reflected hue and visual perception.

[0117] Figure 20 shows the pixel bank and color filter according to another embodiment of this specification. Figure 21 is a cross-sectional view of the line VIII-VIII' shown in Figure 20 according to another embodiment of this specification. Figures 20 and 21 show embodiments in which the configuration of the bank and color filter has been changed in the light-emitting device described with reference to Figures 1 to 19. In the following description with reference to Figures 20 and 21, the same reference numerals are used for the remaining identical components, except for the modified components, and redundant explanations are omitted or simplified.

[0118] Referring to Figures 20 and 21, other embodiments of the light-emitting device according to this specification may be configured such that bank portions (BAs) positioned between a plurality of subpixels (SP1, SP2, SP3, SP4) extend in a first direction (or X-axis direction) to the center of the pixel electrode (AE) and define the non-aperture area (NOA) of the pixel electrode (AE). For example, bank portions (BAs) adjacent to a second subpixel (SP2) and a fourth subpixel (SP4) may include non-aperture bank portions (NBAs) positioned in the first direction in the non-aperture area (NOA) of the pixel electrode (AE) of the second subpixel (SP2) and the fourth subpixel (SP4). For example, the non-aperture bank portions (NBAs) may be configured to extend in the first direction from the left and right sides of the pixel electrode (AE) of the second subpixel (SP2) and the fourth subpixel (SP4) to the center of the pixel electrode (AE).

[0119] The non-aperture bank region (NBA) of the second subpixel (SP2) extends from the bank region (BA) between the first subpixel (SP1) and the second subpixel (SP2) to the center of the pixel electrode (AE) of the second subpixel (SP2), and from the bank region (BA) between the second subpixel (SP2) and the third subpixel (SP3) to the center of the pixel electrode (AE) of the second subpixel (SP2), thus defining the non-aperture region (NOA) of the pixel electrode (AE). For example, the non-aperture bank region (NBA) of the fourth subpixel (SP4) can extend from the bank region (BA) between the third subpixel (SP3) and the fourth subpixel (SP4) to the center of the pixel electrode (AE) of the fourth subpixel (SP4), and from the bank region (BA) between the fourth subpixel (SP4) and other adjacent subpixels (SP) to the center of the pixel electrode (AE) of the fourth subpixel (SP4), thereby defining the non-aperture region (NOA) of the pixel electrode (AE). This allows the light-emitting regions (EA2, EA4) of the second subpixel (SP2) and the fourth subpixel (SP4) to be configured to have a smaller area than the light-emitting regions (EA1, EA3) of the first subpixel (SP1) and the third subpixel (SP3). For example, the non-aperture bank region (NBA) of the second subpixel (SP2) can be superimposed on the pixel electrode (AE) of the second subpixel (SP2). For example, the non-aperture bank portion (NBA) of the fourth subpixel (SP4) can be superimposed on the pixel electrode (AE) of the fourth subpixel (SP4) and on the color filter (CF4) of the fourth subpixel (SP4).

[0120] According to other embodiments of this specification, the non-aperture bank portions (NBA) of the second subpixel (SP2) and fourth subpixel (SP4) can extend from the bank portion (BA) between subpixels to the center of the corresponding subpixel (SP2, SP4) pixel electrode (AE), defining the non-aperture region (NOA) of the pixel electrode (AE). By configuring the first subpixel (SP1) and third subpixel (SP3) to not include non-aperture bank portions (NBA), the aperture ratio and reflected color perception of the light-emitting regions (EA1, EA2, EA3, EA4) can be optimized while minimizing the additional masking process. As a result, the light-emitting devices according to other embodiments of this specification can reduce the reflectance that increases by not using polarizers, improve light efficiency, and enhance reflected hue and visual perception.

[0121] Figure 22 shows the pixel bank and color filter according to another embodiment of this specification. Figure 23 is a cross-sectional view of the line IX-IX' shown in Figure 22 according to another embodiment of this specification. Figures 22 and 23 show embodiments in which the configuration of the bank and color filter has been changed in the light-emitting device described with reference to Figures 1 to 21. In the following description with reference to Figures 22 and 23, the same reference numerals are used for the remaining identical components, except for the modified components, and redundant explanations are omitted or simplified.

[0122] Referring to Figures 22 and 23, other embodiments of the light-emitting display device according to this specification may be configured such that a bank (BA) positioned between a plurality of subpixels (SP1, SP2, SP3, SP4) extends in a first direction (or X-axis direction) to the center of the pixel electrode (AE) and defines a non-aperture area (NOA) of the pixel electrode (AE).

[0123] At least portions of the color filters (CF1, CF3) of the first subpixel (SP1) and third subpixel (SP3) adjacent to the second subpixel (SP2) can be arranged to extend in a first direction (or the X-axis direction) and overlap with the second subpixel (SP2). For example, at least portions of the third color filter (CF3) of the third subpixel (SP3) can include a color filter extension (CFE) that extends in the first direction. The color filter extension (CFE) of the third subpixel (SP3) can be arranged to overlap with the non-aperture bank (NBA) of the second subpixel (SP2).

[0124] The non-aperture bank (NBA) of the second subpixel (SP2) can extend from the bank (BA) between the first subpixel (SP1) and the second subpixel (SP2) to the center of the pixel electrode (AE) of the second subpixel (SP2), and from the bank (BA) between the second subpixel (SP2) and the third subpixel (SP3) to the center of the pixel electrode (AE) of the second subpixel (SP2), thereby defining the non-aperture region (NOA) of the pixel electrode (AE). For example, the non-aperture bank (NBA) of the fourth subpixel (SP4) can extend from the bank (BA) between the third subpixel (SP3) and the fourth subpixel (SP4) to the center of the pixel electrode (AE) of the fourth subpixel (SP4), and from the bank (BA) between the fourth subpixel (SP4) and other adjacent subpixels (SP) to the center of the pixel electrode (AE) of the fourth subpixel (SP4), thereby defining the non-aperture region (NOA) of the pixel electrode (AE). As a result, the light-emitting regions (EA2, EA4) of the second subpixel (SP2) and the fourth subpixel (SP4) can be configured to have a smaller area than the light-emitting regions (EA1, EA3) of the first subpixel (SP1) and the third subpixel (SP3).

[0125] The color filter extension (CFE) of the third subpixel (SP3) can be positioned in the non-aperture bank (NBA) of the second subpixel (SP2). For example, the color filter extension (CFE) of the third subpixel (SP3) can be superimposed on the non-aperture bank (NBA) located to the right of the second subpixel (SP2). The color filter extension (CFE) of the third subpixel (SP3) may be superimposed on the pixel electrode (AE) of the second subpixel (SP2) but not on the light-emitting region (EA2) of the second subpixel (SP2).

[0126] According to other embodiments of this specification, the non-aperture bank portions (NBA) of the second subpixel (SP2) and fourth subpixel (SP4) can extend from the bank portion (BA) between subpixels to the center of the corresponding subpixel (SP2, SP4) pixel electrode (AE), defining the non-aperture region (NOA) of the pixel electrode (AE), and by not including the non-aperture bank portions (NBA) of the first subpixel (SP1) and third subpixel (SP3), and by configuring the color filter (CF3) of the third subpixel (SP3) to overlap with the non-aperture bank portion (NBA) of the second subpixel (SP2), the aperture ratio and reflected color perception of the light-emitting regions (EA1, EA2, EA3, EA4) can be optimized while minimizing the additional masking process. As a result, the light-emitting display devices according to other embodiments of this specification can reduce the reflectivity that increases by not using polarizers, improve light efficiency, and improve reflected hue and visual perception.

[0127] A light-emitting display device according to one or more embodiments of this specification can be described as follows:

[0128] A light-emitting display device according to one or more embodiments of this specification includes a substrate having a plurality of subpixels arranged in a first direction, each subpixel having a light-emitting region and a non-light-emitting region, the substrate having at least one thin-film transistor disposed in the non-light-emitting region of the substrate, at least one protective layer disposed on the at least one thin-film transistor, and at least one color filter disposed on the at least one protective layer in at least some of the plurality of subpixels, wherein each of the plurality of subpixels has a pixel electrode, a light-emitting layer, a common electrode, and a bank portion defining the aperture region of the pixel electrode, and in at least one of the plurality of subpixels, the bank portion may further include a non-aperture bank portion extending to the center of the pixel electrode in a first direction or a second direction intersecting the first direction and defining a non-aperture region of the pixel electrode.

[0129] According to one or more embodiments of this specification, the bank portion may include at least one of a light-absorbing substance or a black substance.

[0130] According to one or more embodiments of this specification, the aperture region of the pixel electrode can be superimposed on the light-emitting region, and the non-aperture region of the pixel electrode can be superimposed on the non-light-emitting region.

[0131] According to one or more embodiments of this specification, the non-aperture bank portion can be positioned between the pixel electrode and the light-emitting layer.

[0132] According to one or more embodiments of this specification, non-aperture bank portions can be arranged parallel to a first direction on the pixel electrodes of a plurality of subpixels.

[0133] According to one or more embodiments of this specification, in at least one of the subpixels, the bank portion may not include a non-aperture bank portion.

[0134] According to one or more embodiments of this specification, the non-aperture bank portion of at least one subpixel can extend further toward the center of the pixel electrode in a first or second direction than the bank portion of at least one other subpixel.

[0135] According to one or more embodiments of this specification, the non-aperture bank portion may include a first sub-non-aperture bank portion and a second sub-non-aperture bank portion that are separated from each other in a second direction with respect to the aperture region of the pixel electrode.

[0136] According to one or more embodiments of this specification, the non-aperture bank portion of the bank portion of at least one subpixel is a first non-aperture bank portion, and the bank portion of at least one other subpixel among a plurality of subpixels may include a second non-aperture bank portion that is different from the first non-aperture bank portion.

[0137] According to one or more embodiments of this specification, the first non-aperture bank portion can extend further toward the center of the pixel electrode in a second direction than the second non-aperture bank portion.

[0138] According to one or more embodiments of this specification, at least one color filter can be positioned to overlap with the non-aperture region of the pixel electrode.

[0139] According to one or more embodiments of this specification, the subpixels include a first subpixel, a second subpixel, a third subpixel, and a fourth subpixel, and the non-aperture bank portion may extend in a second direction to the center of each pixel electrode of the first to fourth subpixels.

[0140] According to one or more embodiments of this specification, the second subpixel is a white subpixel without at least one color filter, and of the at least one color filter, the color filters of the first subpixel, third subpixel, and fourth subpixel can be arranged to overlap with the non-aperture bank portion.

[0141] According to one or more embodiments of this specification, at least one of the first and third subpixels adjacent to the second subpixel can be positioned so as to extend at least a portion of the color filter in the first direction and overlap with the second subpixel.

[0142] According to one or more embodiments of this specification, the color filter superimposed on the second subpixel can be positioned to superimpose on the non-aperture bank portion of the second subpixel, or to overlap with the aperture region of the second subpixel.

[0143] According to one or more embodiments of this specification, the first subpixel may be a red subpixel, the third subpixel may be a blue subpixel, and the fourth subpixel may be a green subpixel.

[0144] According to one or more embodiments of this specification, the third subpixel is located between the second and fourth subpixels in a first direction, and at least a portion of the color filter of the third subpixel can be arranged to extend in the first direction and overlap with the second and fourth subpixels.

[0145] According to one or more embodiments of this specification, the extended color filter of the third subpixel is positioned to overlap with the non-aperture bank portion of the fourth subpixel, and the extended color filter of the third subpixel may or may not overlap with the color filter of the fourth subpixel.

[0146] According to one or more examples of this specification, the common electrode may further include a low-reflection metal layer.

[0147] According to one or more embodiments of this specification, the pixel electrode may further include a low-reflection metal layer.

[0148] According to one or more embodiments of this specification, a transmittance control film disposed on the back surface of the substrate may be further included.

[0149] According to one or more embodiments of this specification, the transmittance control film may include at least one of a transparent film or an absorbent film.

[0150] Although embodiments of this specification have been described in more detail above with reference to the attached figures, this specification is not necessarily limited to such embodiments, and can be modified and implemented in various ways without departing from the technical concept of this specification. Therefore, the embodiments disclosed herein are for illustrative purposes only, not to limit the technical concept of this specification, and such embodiments do not limit the scope of the technical concept of this specification. Accordingly, the embodiments described above should be understood in all respects to be illustrative and not limiting. The scope of protection of this specification should be interpreted as per the claims, and all technical concepts within an equivalent scope should be interpreted as being included in the scope of rights of this specification. [Explanation of Symbols]

[0151] 110: Display Panel 120: Scan drive unit 130: Data-driven unit 160: Timing Control Unit 170: Power supply circuit

Claims

1. A substrate having a plurality of subpixels arranged in a first direction, wherein each subpixel includes an emitting region and a non-emitting region, At least one thin-film transistor arranged in the non-luminescent region of the substrate, At least one protective layer disposed on the at least one thin-film transistor, and At least a portion of the plurality of subpixels includes at least one color filter disposed on the at least one protective layer, Each of the plurality of subpixels includes a pixel electrode, an emissive layer, a common electrode, and a bank portion that defines the aperture region of the pixel electrode. A light-emitting display device in which, in at least one of the plurality of subpixels, the bank portion further includes a non-aperture bank portion that extends to the center of the pixel electrode in a first direction or a second direction intersecting the first direction and defines a non-aperture region of the pixel electrode.

2. The light-emitting device according to claim 1, wherein the bank portion includes at least one of a light-absorbing substance or a black substance.

3. The aperture region of the pixel electrode overlaps with the light-emitting region, The light-emitting device according to claim 1, wherein the non-aperture region of the pixel electrode is superimposed on the non-light-emitting region.

4. The light-emitting device according to claim 1, wherein the non-aperture bank portion is disposed between the pixel electrode and the light-emitting layer.

5. The light-emitting display device according to claim 1, wherein the non-aperture bank portion is arranged parallel to the first direction on the pixel electrodes of the plurality of subpixels.

6. The light-emitting display device according to claim 1, wherein in at least one other subpixel among the plurality of subpixels, the bank portion does not include the non-aperture bank portion.

7. The light-emitting display device according to claim 6, wherein the non-aperture bank portion of at least one subpixel extends further towards the center of the pixel electrode than the bank portion of at least one other subpixel in the first or second direction.

8. The light-emitting device according to claim 1, wherein the non-aperture bank portion includes a first sub-non-aperture bank portion and a second sub-non-aperture bank portion that are separated from each other in the second direction, with the aperture region of the pixel electrode in between.

9. The non-aperture bank portion of the bank portion of the at least one subpixel is the first non-aperture bank portion, The light-emitting display device according to claim 1, wherein the bank portion of at least one other subpixel among the plurality of subpixels includes a second non-aperture bank portion that is different from the first non-aperture bank portion.

10. The light-emitting display device according to claim 9, wherein the first non-aperture bank portion extends further towards the center of the pixel electrode than the second non-aperture bank portion in the second direction.

11. The light-emitting device according to claim 1, wherein the at least one color filter is arranged to overlap with the non-aperture region of the pixel electrode.

12. The plurality of subpixels include a first subpixel, a second subpixel, a third subpixel, and a fourth subpixel, The light-emitting display device according to claim 1, wherein the non-aperture bank portion extends in the second direction to the center of each of the pixel electrodes of the first to fourth subpixels.

13. The second subpixel is a white subpixel in which the at least one color filter is not placed, The light-emitting display device according to claim 12, wherein, of the at least one color filter, the color filters of the first subpixel, the third subpixel, and the fourth subpixel are arranged to overlap with the non-aperture bank portion.

14. The light-emitting display device according to claim 13, wherein at least one of the first subpixel and the third subpixel adjacent to the second subpixel is arranged such that at least a portion of the color filter extends in the first direction and overlaps with the second subpixel.

15. The light-emitting display device according to claim 14, wherein the color filter superimposed on the second subpixel is arranged to superimpose on the non-aperture bank portion of the second subpixel, or to superimpose on the aperture region of the second subpixel.

16. The aforementioned first subpixel is a red subpixel, The aforementioned third subpixel is a blue subpixel, The light-emitting display device according to claim 13, wherein the fourth subpixel is a green subpixel.

17. The third subpixel is located between the second subpixel and the fourth subpixel in the first direction, The light-emitting display device according to claim 16, wherein at least a portion of the color filter of the third subpixel extends in the first direction and is arranged to overlap with the second subpixel and the fourth subpixel.

18. The extended color filter of the third subpixel is arranged to overlap with the non-aperture bank portion of the fourth subpixel. The light-emitting display device according to claim 17, wherein the extended color filter of the third subpixel superimposed on or not superimposed on the color filter of the fourth subpixel.

19. The light-emitting device according to claim 1, wherein the common electrode further comprises a low-reflection metal layer.

20. The light-emitting device according to claim 1, wherein the pixel electrode further comprises a low-reflection metal layer.

21. The light-emitting device according to claim 1, further comprising a transmittance control film disposed on the back surface of the substrate.

22. The light-emitting device according to claim 21, wherein the transmittance control film includes at least one of a transparent film or a light-absorbing film.

Images