Light emitting display device

Abstract

A light emitting display apparatus according to one or more embodiments of the disclosure includes a substrate including a plurality of sub-pixels, and an optical member disposed on the substrate to include a plurality of optical elements overlapping each of the plurality of sub-pixels. Each of the plurality of sub-pixels includes a pixel circuit connected to a data line and a gate line, and a light emitting portion including a first light emitting device and a second light emitting device configured to emit light by a data current supplied from the pixel circuit. Each of the plurality of optical elements is configured to control a travel path of light emitted from each of the first light emitting device and the second light emitting device in different directions.

Description

Cross-references to related applications

[0001] This application claims the benefit and priority of Korean Patent Application No. 10-2025-0057244, filed on April 30, 2025, the entire contents of which are incorporated herein by reference for all purposes, as if fully set forth herein. Technical Field

[0002] This invention relates to a light-emitting display device. Background Technology

[0003] In addition to television (TV) and monitor displays, display devices are also widely used as displays for laptops, tablets, smartphones, portable display devices, and portable information devices.

[0004] Recently, research and development have been conducted on light-emitting display devices that utilize light-emitting devices. These devices offer high image quality and high reliability, and are therefore attracting considerable attention as a next-generation display technology. Summary of the Invention

[0005] The inventors of this disclosure have conducted various studies and experiments to realize a light-emitting display device capable of displaying dual-view images through multiple pixels having light-emitting devices. The inventors of this disclosure have also conducted various studies and experiments to realize a light-emitting display device capable of limiting the display of content that may reduce driver attention during operation of vehicle equipment (or vehicles).

[0006] The inventors of this disclosure have invented a light-emitting display device capable of displaying dual-view images through multiple pixels with light-emitting devices through various studies and experiments, and have also invented a light-emitting display device capable of controlling the viewing angle of an image based on a viewing angle mode.

[0007] One aspect of this disclosure relates to providing a light-emitting display device capable of displaying a dual-view image through a plurality of pixels having light-emitting devices.

[0008] Another aspect of this disclosure relates to providing a light-emitting display device that can switch dual-view images without reducing resolution by using a plurality of pixels having light-emitting devices.

[0009] Another aspect of this disclosure relates to providing a light-emitting display device that can reduce power consumption by displaying dual-view images without reducing resolution, thereby achieving ESG (environmental, social, and governance) performance.

[0010] Another aspect of this disclosure relates to providing a light-emitting display device that can control the viewing angle of an image based on a viewing angle mode by using a plurality of pixels having light-emitting devices.

[0011] Additional advantages and features of this disclosure will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following, or may be learned from practice of this disclosure. The objects and other advantages of this disclosure may be realized and obtained by means of the structures particularly pointed out in the written description, its claims, and the accompanying drawings.

[0012] To achieve these and other advantages and in accordance with the purposes of this disclosure, as embodied and broadly described herein, in one or more aspects, a light-emitting display device includes: a substrate comprising a plurality of sub-pixels; and an optical component disposed on the substrate to include a plurality of optical elements overlapping each of the plurality of sub-pixels. Each of the plurality of sub-pixels includes a pixel circuit connected to a data line and a gate line, and a light-emitting portion including a first light-emitting device and a second light-emitting device, the first and second light-emitting devices being configured to emit light by a data current supplied from the pixel circuit. Each of the plurality of optical elements is configured to control the travel path of light emitted from each of the first and second light-emitting devices in different directions.

[0013] In addition to the means used to solve the above-mentioned problems, specific details of various examples according to this specification are included in the following description and figures.

[0014] One or more embodiments of this disclosure may provide a light-emitting display device capable of displaying a dual-view image through a plurality of pixels having light-emitting devices.

[0015] One or more embodiments of this disclosure may provide a light-emitting display device that can switch dual-view images using multiple pixels without reducing resolution.

[0016] One or more embodiments of this disclosure can reduce power consumption by displaying dual-view images without reducing resolution, thereby achieving ESG (environmental, social, and governance) performance.

[0017] One or more embodiments of this disclosure may provide a light-emitting display device that can control the viewing angle of an image based on a viewing angle mode by using a plurality of pixels having light-emitting devices.

[0018] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon examination of the following figures and detailed description. All such additional systems, methods, features, and advantages are intended to be included within this specification, within the scope of this disclosure, and protected by the appended claims. Nothing in this section should be construed as limiting these claims. Other aspects and advantages are discussed below in conjunction with various aspects of this disclosure.

[0019] It should be understood that the foregoing description and the following description of this disclosure are exemplary and explanatory, and are intended to provide further explanation of the claimed disclosure. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this disclosure and are incorporated into and constitute a part of this disclosure, illustrate aspects and exemplary embodiments of this disclosure and, together with the specification, serve to explain the principles of this disclosure. However, the technical features of embodiments of this disclosure are not limited to those shown in the particular drawings, and the features disclosed in each drawing can be combined to form new embodiments.

[0021] Figure 1 This is a view illustrating a light-emitting display device according to an embodiment of the present disclosure.

[0022] Figure 2 It is shown Figure 1 The equivalent circuit diagram of a sub-pixel is shown, and a cross-sectional view of the light-emitting device is shown.

[0023] Figure 3 It is along Figure 1 The cross-sectional view taken by line I-I' is shown.

[0024] Figure 4 This is a view illustrating a method of driving sub-pixels according to a first image mode of a light-emitting display device according to an embodiment of the present disclosure.

[0025] Figure 5 It shows the basis Figure 4 The view shows the path of light emitted from the light-emitting part in the method of driving sub-pixels.

[0026] Figure 6 This is a view illustrating a method for driving sub-pixels in a second image mode of a light-emitting display device during a Nth frame time period, according to an embodiment of the present disclosure.

[0027] Figure 7 It shows the basis Figure 6 The view shows the path of light emitted from the light-emitting part in the method of driving sub-pixels.

[0028] Figure 8 This is a view illustrating a method for driving sub-pixels in a second image mode of a light-emitting display device during a (N+1) frame time period, according to an embodiment of the present disclosure.

[0029] Figure 9 It shows the basis Figure 8 The view shows the path of light emitted from the light-emitting part in the method of driving sub-pixels.

[0030] Figure 10 It is along Figure 1Another cross-sectional view taken from line I-I'.

[0031] Figure 11 It shows the basis Figure 4 The view shows the path of light emitted from the light-emitting part in the method of driving sub-pixels.

[0032] Figure 12 It shows the basis Figure 6 The view shows the path of light emitted from the light-emitting part in the method of driving sub-pixels.

[0033] Figure 13 It shows the basis Figure 8 The view shows the path of light emitted from the light-emitting part in the method of driving sub-pixels.

[0034] Figure 14 It is along Figure 1 Another cross-sectional view taken from line I-I'.

[0035] Figure 15 It is shown Figure 1 The equivalent circuit diagram of a sub-pixel is shown.

[0036] Throughout the accompanying drawings and detailed embodiments, unless otherwise described, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustration, and / or convenience, the dimensions, lengths, and thicknesses of layers, regions, and elements, and their depictions, may be exaggerated. Detailed Implementation

[0037] The shapes, dimensions, ratios, angles, and quantities disclosed in the accompanying drawings to describe embodiments of this disclosure are merely examples. Therefore, this disclosure is not limited to the details shown. Unless otherwise stated, the same reference numerals always refer to the same elements. In the following description, detailed descriptions of relevant known functions or configurations may be omitted where such detailed descriptions might unnecessarily obscure aspects or features of this disclosure.

[0038] Where terms such as “comprising,” “having,” and “including” are used to describe aspects of this disclosure, an additional part may be added unless a more specific term such as “only” is used. Unless otherwise stated, singular terms may include plural forms, and vice versa.

[0039] When interpreting a component, it should be interpreted as including a range of error, even if not explicitly described.

[0040] When describing positional relationships, for example, when the positional relationship between two parts is described as “on top of,” “above,” “below,” “beside,” and “adjacent to,” one or more other parts may be located between the two parts, unless more restrictive terms such as “immediately,” “directly,” or “closely” are used.

[0041] Unless otherwise stated, when describing an element as “connected,” “coupled,” “contacted,” or “attached” to another element, the element may not only be directly connected, coupled, or contacted to the other element, but may also be indirectly connected, coupled, contacted, or attached to the other element by means of one or more intermediate elements inserted between the elements.

[0042] Unless otherwise stated, the description of an element "contacting" or "overlapping" with another element means that the element may not only directly contact or overlap with another element, but also indirectly contact or overlap with another element, and one or more intermediate elements may be disposed or inserted between the elements.

[0043] Terms such as “first direction”, “second direction”, “third direction”, “X-axis direction”, “Y-axis direction” and “Z-axis direction” should not be interpreted as geometric relationships that are only perpendicular to each other, and can have a wider range of orientations within the scope of the elements of this disclosure that can function functionally.

[0044] As will be fully understood by those skilled in the art, the features of the various embodiments of this disclosure may be coupled or combined with each other in part, and may interoperate with each other in various ways and be technically driven. Embodiments of this disclosure may be performed independently of each other, or may be performed together in an interdependent relationship.

[0045] In the following, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. For ease of description, the scale of each element shown in the drawings may differ from the actual scale, size, dimensions, and thickness; therefore, aspects of the present disclosure are not limited to the scale, size, dimensions, and thickness shown in the drawings.

[0046] Figure 1 This is a view illustrating a light-emitting display device according to an embodiment of the present disclosure. Figure 2 It is shown Figure 1 The equivalent circuit diagram of a sub-pixel is shown, and a cross-sectional view of the light-emitting device is shown.

[0047] refer to Figure 1 and Figure 2 The light-emitting display device according to the embodiments of the present disclosure may include a substrate 100 and an optical component 300.

[0048] The substrate 100 may be a first substrate, a thin-film transistor array substrate, or a pixel array substrate. The substrate 100 may be made of glass or plastic material. According to an embodiment, the substrate 100 includes a display area AA and a non-display area IA.

[0049] The display area AA can be defined as the area used to display images. The non-display area IA can be the outer portion of the display area AA, and unlike the display area AA, it cannot display images.

[0050] According to an embodiment, the substrate 100 may include a plurality of sub-pixels SP. Furthermore, the non-display area IA may be defined as an area provided with lines and circuits for driving the plurality of sub-pixels SP.

[0051] Multiple sub-pixels SP can be arranged along a first direction X and a second direction Y intersecting the first direction X, respectively.

[0052] Each of a plurality of subpixels SP can be defined as the smallest unit that emits actual light. Three or more adjacent subpixels SP can constitute a unit pixel for color display. For example, a unit pixel may include one or more red subpixels, one or more green subpixels, and one or more blue subpixels, but is not limited thereto.

[0053] Each of the plurality of sub-pixels SP can be disposed in a sub-pixel region. The sub-pixel region can be defined by the intersection of a plurality of gate lines GL and a plurality of data lines DL. Each of the plurality of sub-pixels SP is disposed in the sub-pixel region and can be configured to be electrically connected to the gate lines GL and data lines DL. Each of the plurality of sub-pixels SP can be configured to be additionally connected to a first power line PL1 and a second power line PL2 disposed on the substrate 100.

[0054] Each of the plurality of gate lines GL extends for a considerable length along a first direction X (or X-axis direction) of the substrate 100 and may be spaced apart at a constant interval along a second direction Y (or Y-axis direction). Each of the plurality of gate lines GL may be shared by a plurality of sub-pixels SP arranged along the first direction X. Each of the plurality of gate lines GL may be configured to supply (or transmit) a scan signal SS to the plurality of sub-pixels SP.

[0055] Multiple data lines DL are spaced apart at constant intervals along a first direction X of the substrate 100 and may extend relatively long along a second direction Y of the substrate 100. Each of the multiple data lines DL may be shared by a plurality of sub-pixels SP that are positioned along the second direction Y. Each of the multiple data lines DL may be configured to supply (or transmit) a data signal Vdata to the plurality of sub-pixels SP.

[0056] Each of the plurality of first power lines PL1 may be disposed on the substrate 100, parallel to the data line DL, but is not limited thereto. Each of the plurality of first power lines PL1 may be configured to supply (or transmit) pixel driving voltage (or high potential voltage) EVDD to the plurality of sub-pixels SP.

[0057] Each of the plurality of second power lines PL2 may be disposed on the substrate 100, parallel to the data line DL, but is not limited thereto. Each of the plurality of second power lines PL2 may be configured to supply (or transmit) a pixel common voltage (or low potential voltage) EVSS to a plurality of sub-pixels SP.

[0058] Each of the plurality of sub-pixels SP according to embodiments of the present disclosure may include a light-emitting portion EP and a pixel circuit PC.

[0059] The light-emitting unit EP may include, but is not limited to, multiple light-emitting devices ED1 and ED2 connected in series. For example, each of the multiple light-emitting devices ED1 and ED2 may be a light-emitting diode device, a light-emitting diode chip, a miniature light-emitting device, a miniature light-emitting diode, or a miniature light-emitting diode chip. For example, each of the multiple light-emitting devices ED1 and ED2 may have a size from 1 μm to 100 μm, but is not limited to.

[0060] According to the embodiment, the light-emitting part EP may include a first light-emitting device ED1 and a second light-emitting device ED2 connected in series.

[0061] The first light-emitting device ED1 and the second light-emitting device ED2 can be connected in series between the pixel circuit PC and the second power line PL2. For example, the first light-emitting device ED1 can be a light-emitting device for a first viewing angle (or a light-emitting device for a second viewing angle), and the second light-emitting device ED2 can be a light-emitting device for a second viewing angle (or a light-emitting device for a second viewing angle), but is not limited thereto. For example, the first light-emitting device ED1 can be a light-emitting device for a first image, and the second light-emitting device ED2 can be a light-emitting device for a second image, but is not limited thereto.

[0062] According to an embodiment, the first electrode (or anode electrode) of the first light-emitting device ED1 can be electrically connected to the pixel circuit PC, and the second electrode (or cathode electrode) of the first light-emitting device ED1 can be electrically connected to the first electrode (or anode electrode) of the second light-emitting device ED2. Additionally, the second electrode (or cathode electrode) of the second light-emitting device ED2 can be electrically connected to the second power line PL2.

[0063] Each of the plurality of light-emitting devices (or first light-emitting device and second light-emitting device) ED1 and ED2 in the light-emitting section EP may include a light-emitting layer EL, a first electrode (or anode terminal) E1, and a second electrode (or cathode terminal) E2. For example, each of the plurality of light-emitting devices (or first light-emitting device and second light-emitting device) ED1 and ED2 may have a lateral structure, but is not limited thereto.

[0064] Depending on the current flowing between the first electrode E1 and the second electrode E2, the light-emitting layer EL can emit light based on the recombination of electrons and holes. According to an embodiment, the light-emitting layer EL may include a first semiconductor layer SCL1, an active layer ACT, and a second semiconductor layer SCL2.

[0065] The first semiconductor layer SCL1 can be configured to provide electrons to the active layer ACT. According to an embodiment, the first semiconductor layer SCL1 can be made of an n-GaN-based semiconductor material. Examples of n-GaN-based semiconductor materials include, but are not limited to, GaN, AlGaN, InGaN, or AlInGaN. For example, impurities used to dope the first semiconductor layer SCL1 can include, but are not limited to, silicon (Si), germanium (Ge), selenium (Se), tellurium (Te), or carbon (C).

[0066] The active layer ACT can be disposed on one side of the first semiconductor layer SCL1. The active layer ACT can have a multi-quantum-well structure, which includes a well layer and a barrier layer, wherein the barrier layer has a higher band gap than the well layer. For example, the active layer ACT can have a multi-quantum-well structure such as InGaN / GaN.

[0067] The second semiconductor layer SCL2 can be disposed on the active layer ACT and can be configured to provide holes to the active layer ACT. According to an embodiment, the second semiconductor layer SCL2 can be made of a p-GaN-based semiconductor material. Examples of p-GaN-based semiconductor materials include GaN, AlGaN, InGaN, or AlInGaN, etc. For example, impurities used to dope the second semiconductor layer SCL2 can include, but are not limited to, magnesium (Mg), zinc (Zn), or beryllium (Be), etc.

[0068] The first electrode E1 can be disposed on the second semiconductor layer SCL2. The second electrode E2 can be disposed on the other side of the first semiconductor layer SCL1 so as to be electrically isolated (or disconnected) from the active layer ACT and the second semiconductor layer SCL2.

[0069] exist Figure 2In this context, multiple light-emitting devices (or first and second light-emitting devices) ED1 and ED2 are described as including, but not limited to, a lateral structure. For example, multiple light-emitting devices (or first and second light-emitting devices) ED1 and ED2 may have a vertical structure or a flip-chip structure.

[0070] The pixel circuit PC can be configured to control the current flowing to the light-emitting part EP based on the scan signal SS supplied through the gate line GL and the data signal supplied through the data line DL.

[0071] The pixel circuit PC can be configured to be electrically connected to the gate line GL, the data line DL, the first device select line DSL1, and the second device select line DSL2.

[0072] The first device selection line (or first selection line) DSL1 can be configured to supply (or transmit) a first device selection signal (or first selection signal) DSS1 to the pixel circuitry PC. The second device selection line (or second selection line) DSL2 can be configured to supply (or transmit) a second device selection signal (or second selection signal) DSS2 to the pixel circuitry PC. For example, based on the drive mode (or operating mode or viewing angle mode), the first device selection signal DSS1 and the second device selection signal DSS2 can be the same as or different from each other.

[0073] Each of the first device selection line DSL1 and the second device selection line DSL2 can be set parallel to the data line DL. For example, the first device selection line DSL1 set at each of the multiple sub-pixels SP can be connected to each other. The second device selection line DSL2 set at each of the multiple sub-pixels SP can be connected to each other.

[0074] The pixel circuit PC may include a first node N1 and a second node N2, a first thin-film transistor T1, a second thin-film transistor T2, a third thin-film transistor T3 and a fourth thin-film transistor T4, and a capacitor Cst.

[0075] The first to fourth thin-film transistors T1, T2, T3, and T4 can be configured as the same type of P-type and N-type thin-film transistors, or they can be configured as different types. One or more of the first to fourth thin-film transistors T1, T2, T3, and T4 may comprise a semiconductor layer made of the same or different materials selected from amorphous silicon, polycrystalline silicon, low-temperature polycrystalline silicon, oxides, and organic materials. In the following description, it is assumed that each of the first to fourth thin-film transistors T1, T2, T3, and T4 is an N-type thin-film transistor.

[0076] A first thin-film transistor (or driving thin-film transistor) T1 can be connected to a first node N1 and a second node N2, and can be configured to control the current flowing from a first power line PL1 to the second node N2 based on the voltage level of the first node N1. For example, the first thin-film transistor T1 may include a gate electrode connected to the first node N1, a source electrode connected to the second node N2, and a drain electrode connected to the first power line PL1. The source electrode of the first thin-film transistor T1 can be electrically connected to the light-emitting portion EP through the second node N2. For example, the source electrode of the first thin-film transistor T1 can be electrically connected to the first electrode E1 of the first light-emitting device ED1 of the light-emitting portion EP through the second node N2. For example, the first light-emitting device ED1 and the second light-emitting device ED2 can be connected in series between the first thin-film transistor T1 and the second power line PL2. For example, the first light-emitting device ED1 and the second light-emitting device ED2 can be connected in series between the second node N2 and the second power line PL2.

[0077] The second thin-film transistor (or switching thin-film transistor) T2 is turned on based on a scan signal SS applied from the gate line GL (or scan line) and can be configured to be electrically connected between the data line DL and the first node N1. The second thin-film transistor T2 can supply (or transmit) a data signal Vdata supplied via the data line DL to the first node N1 based on the scan signal SS. For example, the second thin-film transistor T2 may include a gate electrode connected to the gate line GL, a source electrode (or drain electrode) connected to the data line DL, and a drain electrode (or source electrode) connected to the first node N1.

[0078] A third thin-film transistor (or a first device selection thin-film transistor, a first path control thin-film transistor, or a first selection thin-film transistor) T3 can be configured to selectively emit light from the first light-emitting device ED1 based on a driving mode (or viewing angle mode). The third thin-film transistor T3 can be turned on based on a first device selection signal DSS1 and can be configured to block current flowing to the first light-emitting device ED1. The third thin-film transistor T3 can be electrically connected in parallel with the first light-emitting device ED1. For example, the third thin-film transistor T3 can be connected across the first light-emitting device ED1 and can be turned on based on the first device selection signal DSS1.

[0079] The third thin-film transistor T3 can be configured to block or bypass the current applied from the first thin-film transistor T1 to the first light-emitting device ED1 based on the first device selection signal DSS1. For example, the first light-emitting device ED1 can emit light through the data current output from the first thin-film transistor T1 during the off-time of the third thin-film transistor T3. During the on-time of the third thin-film transistor T3, the data current output from the first thin-film transistor T1 can bypass the first light-emitting device ED1 and flow through the third thin-film transistor T3 to the second light-emitting device ED2. For example, the third thin-film transistor T3 can bypass the current applied to the first light-emitting device ED1 in a second mode (or a second viewing mode or a second operating mode).

[0080] The third thin-film transistor T3 may include a gate electrode for receiving the first device selection signal DSS1, a source electrode (or drain electrode) connected to the second node N2 (or the source electrode of the first thin-film transistor T1 or the first electrode E1 of the first light-emitting device ED1), and a drain electrode (or source electrode) connected to the second electrode E2 of the first light-emitting device ED1 (or the first electrode E1 of the second light-emitting device ED2). The first device selection signal DSS1 may include a gate on-voltage period and a gate off-voltage period. The first light-emitting device ED1 may not emit light during the gate on-voltage period of the first device selection signal DSS1, and may emit light during the gate off-voltage period of the first device selection signal DSS1.

[0081] A fourth thin-film transistor (or a second device selection thin-film transistor, a second path control thin-film transistor, or a second selection thin-film transistor) T4 can be configured to selectively emit light from the second light-emitting device ED2 based on a mode (or viewing angle mode). The fourth thin-film transistor T4 is turned on based on the second device selection signal DSS2 and can be configured to block current flowing to the second light-emitting device ED2. The fourth thin-film transistor T4 can be electrically connected in parallel with the second light-emitting device ED2. The fourth thin-film transistor T4 can be connected across the two terminals of the second light-emitting device ED2 and can be turned on based on the second device selection signal DSS2.

[0082] The fourth thin-film transistor T4 can be configured to block or bypass the current applied to the second light-emitting device ED2 via the first light-emitting device ED1 or the third thin-film transistor T3. For example, the second light-emitting device ED2 can emit light during the off-time of the fourth thin-film transistor T4 by the data current applied via the first light-emitting device ED1 or the third thin-film transistor T3. During the on-time of the fourth thin-film transistor T4, the data current output from the first light-emitting device ED1 or the third thin-film transistor T3 can bypass the second light-emitting device ED2 and flow through the fourth thin-film transistor T4 to the second power line PL2. For example, the fourth thin-film transistor T4 can be configured to bypass the current applied to the second light-emitting device ED2 in a first mode (or a first viewing mode or a first operating mode).

[0083] The fourth thin-film transistor T4 may include a gate electrode for receiving the second device selection signal DSS2, a source electrode (or drain electrode) connected to the second electrode E2 of the first light-emitting device ED1, and a drain electrode (or source electrode) connected to the second power line PL2 (or the second electrode E2 of the second light-emitting device ED2). The second device selection signal DSS2 may include a gate on-voltage period and a gate off-voltage period. The second light-emitting device ED2 may not emit light during the gate on-voltage period of the second device selection signal DSS2, and may emit light during the gate off-voltage period of the second device selection signal DSS2.

[0084] According to an embodiment, the current flowing from the first thin-film transistor T1 to the light-emitting part EP can flow through one or more of the first light-emitting device ED1 and the second light-emitting device ED2. In the first mode (or first viewing angle mode), the current flowing from the first thin-film transistor T1 to the light-emitting part EP can flow through both the first light-emitting device ED1 and the second light-emitting device ED2. In the second mode (or second viewing angle mode), the current flowing from the first thin-film transistor T1 to the light-emitting part EP can flow through either the first light-emitting device ED1 or the second light-emitting device ED2 in frame periods. In the second mode (or second viewing angle mode), during the Nth frame period (N is a natural number), the current flowing from the first thin-film transistor T1 to the light-emitting part EP flows only through the first light-emitting device ED1, and during the (N+1)th frame period, the current flowing from the first thin-film transistor T1 to the light-emitting part EP can flow only through the second light-emitting device ED2. The image in the Nth frame period can be a different or distinct content image from the image in the (N+1)th frame period. Therefore, the current flowing to the light-emitting part EP during the Nth frame period and the current flowing to the light-emitting part EP during the (N+1)th frame period can correspond to different images. For example, the content image may include one or more of entertainment images, media images, and vehicle navigation images, but is not limited to these.

[0085] The light-emitting display device according to embodiments of the present disclosure may further include a counter substrate 200. The counter substrate 200 may be configured to cover the substrate 100. The counter substrate 200 may be a second substrate, a protective substrate, or an encapsulating substrate. The counter substrate 200 may be bonded to the substrate 100 via a transparent adhesive member. The substrate 100 and the counter substrate 200 may constitute a display panel 10.

[0086] The light-emitting display device according to embodiments of the present disclosure may further include a gate driving circuit 110 and a panel driving circuit section 130.

[0087] The gate driving circuit 110 can be configured to supply scan signals SS to a plurality of gate lines GL in a predetermined sequence based on gate control signals supplied from the panel driving circuit section 130. The gate driving circuit 110 can be formed (or configured) in the non-display area IA of the substrate 100. The gate driving circuit 110 may include a first gate driving circuit 110A and a second gate driving circuit 110B.

[0088] The first gate driving circuit 110A can be disposed in the first non-display area (or the left non-display area) of the display area AA to be electrically connected to one end of each of the plurality of gate lines GL. The second gate driving circuit 110B can be disposed in the second non-display area (or the right non-display area) to be electrically connected to the other end of each of the plurality of gate lines GL. The gate driving circuit 110 (or the first gate driving circuit 110A and the second gate driving circuit 110B) can be directly formed or implemented in the non-display area IA of the substrate 100 by a thin-film transistor fabrication process based on the GIP (Gate in Panel) method for sub-pixels SP. For example, the gate driving circuit 110 (or the first gate driving circuit 110A and the second gate driving circuit 110B) can be a gate-in-place circuit or a gate shift register circuit.

[0089] The panel driving circuit section 130 can be connected to the pad section 112 provided on one side of the substrate 100 in the non-display area IA, and can be configured to display an image on the display area AA corresponding to the image data supplied from the display driving system.

[0090] According to the embodiment, the panel driving circuit section 130 can be configured to include a plurality of flexible circuit films 131, a plurality of data driving integrated circuits 133, a printed circuit board 135, a timing control section 137, and a power supply circuit 139.

[0091] Each of the multiple flexible circuit films 131 can be attached to the pad portion 112 of the substrate 100 by a film attachment process.

[0092] Each of the multiple data driver integrated circuits 133 can be individually mounted on each of the multiple flexible circuit films 131. The data driver integrated circuit 133 can receive sub-pixel data and data control signals provided from the timing control unit 137, can convert the sub-pixel data into an analog type data signal (or voltage) for each sub-pixel based on the data control signal, and can supply the analog sub-pixel data signal to the corresponding data line DL.

[0093] The printed circuit board 135 can be connected to multiple flexible circuit films 131. The printed circuit board 135 can support the timing control unit 137 and the power supply circuit 139, and can be used to transmit signals and power between components of the panel driving circuit unit 130.

[0094] The timing control unit 137 can be mounted on the printed circuit board 135 and can receive image data and timing synchronization signals provided from the display driving system through a user connector provided on the printed circuit board 135. The timing control unit 137 can generate sub-pixel data by aligning the image data to an arrangement structure suitable for the sub-pixels SP of the display area AA based on the timing synchronization signals, and can provide the generated sub-pixel data to the data driving integrated circuit 133.

[0095] The timing control unit 137 can be configured to generate each of a data control signal and a gate control signal based on a timing synchronization signal to control the driving timing of each of the plurality of data driver integrated circuits 133 and gate driver circuits 110.

[0096] The timing control unit 137 can be configured to generate a first device selection signal DSS1 and a second device selection signal DSS2 and supply them to a first device selection line DSL1 and a second device selection line DSL2. The first device selection signal DSS1 and the second device selection signal DSS2 are used to selectively emit light from one or more of the first light-emitting devices ED1 and ED2 disposed at each of a plurality of sub-pixels SP. For example, the timing control unit 137 can be configured to generate the first device selection signal DSS1 and the second device selection signal DSS2 based on a driving mode (or viewing mode) and supply them to the first device selection line DSL1 and the second device selection line DSL2.

[0097] The driving mode according to the embodiment may include a first image mode and a second image mode.

[0098] The first image mode can be a mode for displaying a dual-view image on the display panel 10 by simultaneously emitting light from the first light-emitting device ED1 and the second light-emitting device ED2. For example, the timing control unit 137 can be configured to generate a first device selection signal DSS1 and a second device selection signal DSS2 having a first logic state (or gate turn-off voltage) for simultaneously emitting light from the first light-emitting device ED1 and the second light-emitting device ED2, so as to emit light based on the first image mode.

[0099] The second image mode can be a mode for displaying a single (or individual) image on the display panel 10 by alternating driving (or alternating light emission) of the first light-emitting device ED1 and the second light-emitting device ED2. In the second image mode, the first light-emitting device ED1 and the second light-emitting device ED2 can alternately emit light in frame periods by different data currents corresponding to a single image. In the second image mode, the image in the Nth frame period can be a content image that is different from or distinguishable from the image in the (N+1)th frame period. Based on the second image mode, the timing control unit 137 can be configured to generate a first device selection signal DSS1 having a first logic state (or gate off voltage) and a second device selection signal DSS2 having a second logic state during the Nth frame period, and to generate a first device selection signal DSS1 having a second logic state and a second device selection signal DSS2 having a first logic state during the (N+1)th frame period.

[0100] According to another embodiment, the driving mode (or view mode) may include a first view mode and a second view mode.

[0101] The first viewing mode can be a wide viewing mode or a normal viewing mode (or a normal viewing mode). The first viewing mode can be a mode for displaying a normal view image on the display panel 10 by simultaneously emitting light from the first light-emitting device ED1 and the second light-emitting device ED2. For example, the timing control unit 137 can be configured to generate a first device selection signal DSS1 and a second device selection signal DSS2 based on the first viewing mode, having a first logic state (or gate turn-off voltage) for simultaneously emitting light from the first light-emitting device ED1 and the second light-emitting device ED2.

[0102] The second viewing mode according to the embodiment can be a narrow viewing mode or a privacy mode (or a personal security mode). The second viewing mode can be a mode for displaying a personal security image (or a single image or individual image) different from the image displayed in the first viewing mode on the display panel 10 by emitting light from only one of the first light-emitting devices ED1 and ED2. For example, the second viewing mode can be a mode for displaying a single (or individual or personal security) image on the display panel 10 by emitting light from only the first light-emitting device ED1 of the first light-emitting device ED1 and ED2. In the second viewing mode, the second light-emitting device ED2 may not emit light. For example, according to the embodiment, the timing control unit 137 can be configured to generate a first device selection signal DSS1 having a first logic state and a second device selection signal DSS2 having a second logic state based on the second viewing mode.

[0103] According to another embodiment, the second viewing mode can be a mode in which a personal safety image and a personal non-safety image are alternately displayed on the display panel 10 in frame intervals by alternating driving (or alternating light emission) of the first light-emitting device ED1 and the second light-emitting device ED2. In the second viewing mode according to another embodiment, the first light-emitting device ED1 and the second light-emitting device ED2 can display different images by alternately emitting light in frame intervals by different data currents. In the second viewing mode, the image in the Nth frame interval can be a personal safety image and can be implemented with a narrow viewing angle, and the image in the (N+1)th frame interval can be a personal non-safety image and can be implemented with a narrow viewing angle. Based on the second viewing mode according to another embodiment, the timing control unit 137 can be configured to generate a first device selection signal DSS1 having a first logic state and a second device selection signal DSS2 having a second logic state during the Nth frame interval, and to generate the first device selection signal DSS1 having a second logic state and the second device selection signal DSS2 having a first logic state during the (N+1)th frame interval.

[0104] The power supply circuit 139 can be mounted on the printed circuit board 135 and can be configured to use input power from an external source to generate the various voltages required to display the image in the display area AA, and is configured to supply the corresponding components.

[0105] Optical component 300 may be disposed on substrate 100 to include a plurality of optical elements 310 overlapping each of the plurality of sub-pixels SP. For example, optical component 300 may be disposed between light-emitting portion EP and opposing substrate 200, but is not limited thereto. For example, optical component 300 may be attached to opposing substrate 200 by using an adhesive member. In this case, opposing substrate 200 may be disposed between optical component 300 and substrate 100.

[0106] Optical component 300 or multiple optical elements 310 can be configured to control the travel path of light emitted from each of the multiple sub-pixels SP in different directions. Optical component 300 or multiple optical elements 310 can be configured to control the travel path of light emitted from each of the multiple sub-pixels SP in different directions based on the driving mode (or viewing angle mode) of the light-emitting display device (or display panel 10). A first light-emitting device ED1 and a second light-emitting device ED2 disposed in a sub-pixel SP can overlap with a corresponding one of the multiple optical elements 310. Therefore, each of optical component 300 or multiple optical elements 310 can be configured to control the travel path of light emitted from each of the first light-emitting device ED1 and the second light-emitting device ED2 disposed in a sub-pixel SP in different directions.

[0107] Each of the plurality of optical elements 310 according to the embodiments may include, but is not limited to, a convex lens shape or a cylindrical lens. Thus, optical component 300 may include a cylindrical lens component or a cylindrical lens film.

[0108] Each of the plurality of optical elements 310 may be arranged parallel to each other along a first direction X and may extend longer along a second direction Y. Each of the plurality of optical elements 310 may be formed parallel to the data line DL to have a preset width.

[0109] According to an embodiment, an optical element 310 can be configured to cover the first light-emitting device ED1 and the second light-emitting device ED2 disposed at a sub-pixel SP. Therefore, light emitted from each of the first light-emitting device ED1 and the second light-emitting device ED2 disposed at a sub-pixel SP can be emitted to the outside through the optical element (or cylindrical lens) 310 via paths in different directions. For example, light emitted from each of the first light-emitting device ED1 and the second light-emitting device ED2 disposed at a sub-pixel SP can achieve different viewing angles through a single optical element 310.

[0110] As described above, the light-emitting display device according to the embodiments of the present disclosure can display a dual-view image or switch (or convert) and display a general image as a dual-view image without reducing the resolution based on the selective light emission of the first light-emitting device ED1 and the second light-emitting device ED2 disposed at each of the plurality of sub-pixels SP and the control of the light path (or viewing angle) by the optical element 310, and can control the viewing angle of the image based on the viewing angle mode.

[0111] Figure 3 It is along Figure 1 The cross-sectional view taken by line I-I' is shown. Figure 3 This is a view used to explain the optical components according to embodiments of the present disclosure.

[0112] refer to Figures 1 to 3 The light-emitting display device according to the embodiments of the present disclosure may include a pixel circuit layer 101, an optical component 300 and a relative substrate 200 disposed on a substrate 100.

[0113] The pixel circuit layer 101 may include lines GL, DL, PL1, PL2, DSL1, and DSL2 disposed on the substrate 100, and pixel circuits PC connected to the lines GL, DL, PL1, PL2, DSL1, and DSL2. The pixel circuits PC may be covered by a planarization layer 102. The planarization layer 102 may be formed to provide a flat surface on the upper part of the pixel circuits PC.

[0114] Each of the first light-emitting device ED1 and the second light-emitting device ED2 disposed at each of the plurality of sub-pixels SP can be disposed on the planarization layer 102 and electrically connected to the pixel circuit PC through a contact hole formed in the planarization layer 102. The first light-emitting device ED1 and the second light-emitting device ED2 disposed at each of the plurality of sub-pixels SP can also be covered by the second planarization layer.

[0115] Optical component 300 can be disposed on pixel circuit layer 101. For example, optical component 300 can be attached to pixel circuit layer 101 using adhesive component 150. First light-emitting device ED1 and second light-emitting device ED2 disposed at each of the plurality of sub-pixels SP can be covered or surrounded by adhesive component 150.

[0116] The optical component 300 may include a plurality of optical elements 310. The width W1 of each of the plurality of optical elements 310 may have a dimension corresponding to the width W2 of a sub-pixel SP. The width W1 of an optical element 310 may correspond to or be the same as the width W2 of the sub-pixel SP. The width W1 of an optical element 310 may be the same as the spacing between the plurality of sub-pixels SP. Each of the plurality of optical elements 310 may include, but is not limited to, a cylindrical lens having a width W1 parallel to a first direction X and a length parallel to a second direction Y.

[0117] Each of the plurality of optical elements (or cylindrical lenses) 310 may include a first end 310a1, a second end 310a2, a central portion 310b, and a curved portion 310c.

[0118] The first end 310a1 can be one end of each of the plurality of optical elements (or cylindrical lenses) 310. The second end 310a2 can be the other end of each of the plurality of optical elements (or cylindrical lenses) 310 opposite to the first end 310a1. The first end 310a1 and the second end 310a2 can be parallel to each other and can be parallel to the data line DL.

[0119] The central portion 310b may include an intermediate portion between the first end 310a1 and the second end 310a2. The first end 310a1 and the second end 310a2 may be parallel to each other, with the central portion 310b located therebetween. For example, each of the plurality of optical elements (or cylindrical lenses) 310 may have a symmetrical structure (or a bilaterally symmetrical structure) with respect to the central portion 310b.

[0120] The curved portion 310c may include a curved shape having a predetermined curvature between the first end 310a1 and the second end 310a2. The curved portion 310c may be formed as a curved shape having one curvature. Therefore, each of the plurality of optical elements (or cylindrical lenses) 310 may include a curved shape having one curvature. The curved shape of the curved portion 310c may have a maximum slope that decreases from each of the first end 310a1 and the second end 310a2 toward the central portion 310b.

[0121] The curved portion 310c according to the embodiment may include a first curved portion 310c1 and a second curved portion 310c2.

[0122] The first curved portion 310c1 may include a first half of the curved portion 310c. The first curved portion 310c1 may include the portion (or the first half) between the central portion 310b and the first end 310a1. The second curved portion 310c2 may include the portion (or the second half) between the central portion 310b and the second end 310a2.

[0123] The first light-emitting device ED1 disposed at each of the plurality of sub-pixels SP can be configured (or aligned) to overlap with the first curved portion 310c1 of the corresponding optical element 310. The first light-emitting device ED1 can be configured (or aligned) to overlap with the first curved portion 310c1 of the curved portion 310c. The first light-emitting device ED1 can be disposed (or aligned) below the first curved portion 310c1 of the curved portion 310c.

[0124] As one embodiment, the center of the first light-emitting device ED1 can be aligned with the center 310d1 of the first curved portion 310c1. As another embodiment, the center of the first light-emitting device ED1 can be aligned between the first end 310a1 and the center 310d1 of the first curved portion 310c1. Therefore, light emitted by the light emission of the first light-emitting device ED1 located at each of the plurality of sub-pixels SP can be emitted through the curved portion 310c in the first viewing direction. Light emitted from the first light-emitting device ED1 can be emitted only in the left viewing direction.

[0125] The second light-emitting device ED2 disposed at each of the plurality of sub-pixels SP can be configured (or aligned) to overlap with the second curved portion 310c2 of the corresponding optical element 310. For example, the second light-emitting device ED2 can be configured (or aligned) to overlap with the second curved portion 310c2 of the curved portion 310c. For example, the second light-emitting device ED2 can be disposed (or aligned) below the second curved portion 310c2 of the curved portion 310c.

[0126] As one embodiment, the center of the second light-emitting device ED2 can be aligned with the center 310d2 of the second curved portion 310c2. As another embodiment, the center of the second light-emitting device ED2 can be aligned between the second end 310a2 and the center 310d2 of the second curved portion 310c2. Therefore, light emitted by the light emission of the second light-emitting device ED2 located at each of the plurality of sub-pixels SP can be emitted through the curved portion 310c in the second viewing direction. Light emitted from the second light-emitting device ED2 can be emitted only in the right viewing direction.

[0127] The optical component 300 may also include a protective layer 330 covering a plurality of optical elements 310. The protective layer 330 may be configured to cover each of the plurality of optical elements 310 and provide a flat surface on the plurality of optical elements 310.

[0128] The optical component 300 can be covered by the opposing substrate 200. The opposing substrate 200 can be attached (or coupled) to the protective layer 330 of the optical component 300 via an adhesive member. Therefore, the optical component 300 can be disposed between the substrate 100 and the opposing substrate 200, and thus can be embedded inside the display panel 10, but is not limited thereto. For example, according to another embodiment, the optical component 300 may not be embedded inside the display panel 10, but may be disposed outside the display panel 10. For example, the optical component 300 can be attached to the opposing substrate 200 via an adhesive member.

[0129] The arrangement position of the optical component 300 according to the embodiments of the present disclosure can be embedded inside the display panel 10 or disposed outside the display panel 10 based on the physical distance (or optical distance) between the light-emitting part EP and the optical element 310.

[0130] Figure 4 This is a view illustrating a method of driving sub-pixels according to a first image mode of a light-emitting display device according to an embodiment of the present disclosure. Figure 5 It shows the basis Figure 4 The method shown is a view of the path of light emitted from the light-emitting part in the method of driving sub-pixels.

[0131] refer to Figure 4 and Figure 5In the light-emitting display device according to an embodiment of the present disclosure, a data signal Vdata, a scan signal SS, and a first device selection signal DSS1 and a second device selection signal DSS2 having a first logic state (or gate turn-off voltage) based on a first image mode can be supplied to the pixel circuit PC of the sub-pixel SP.

[0132] The third thin-film transistor T3 of the pixel circuit PC can be turned off by the first device selection signal DSS1 of the first logic state, and the fourth thin-film transistor T4 can also be turned off by the first device selection signal DSS1 of the first logic state. Furthermore, the first thin-film transistor T1 of the pixel circuit PC can supply a data current corresponding to the data signal Vdata to the light-emitting unit EP. The data signal Vdata is supplied through the second thin-film transistor T2, which is turned on by the scan signal SS. The first light-emitting device ED1 and the second light-emitting device ED2 of the light-emitting unit EP can simultaneously emit light by the same data current supplied from the first thin-film transistor T1. Therefore, the light L1 emitted by the light emission of the first light-emitting device ED1 can be emitted only in the first viewing angle region VA1 (or the left viewing angle direction) according to the light guide of the optical element 310, and the light L2 emitted by the light emission of the second light-emitting device ED2 can be emitted only in the second viewing angle region VA2 (or the right viewing angle direction) according to the light guide of the optical element 310.

[0133] Therefore, the display panel 10 can simultaneously display a dual-view image based on a first image mode by using light L1 emitted according to the light emission of the first light-emitting device ED1 and light L2 emitted according to the light emission of the second light-emitting device ED2. The display panel 10 based on the first image mode can simultaneously display dual-view images that can be viewed simultaneously without reducing resolution by simultaneously emitting light from the first light-emitting device ED1 and the second light-emitting device ED2 disposed at each of a plurality of sub-pixels SP. For example, a first viewer located on the left side of the display panel 10 can view the image using light L1 emitted only in the first viewing area VA1 (or the left viewing direction), and a second viewer located on the right side of the display panel 10 can view the image using light L2 emitted only in the second viewing area VA2 (or the right viewing direction). For example, the dual-view image can be an entertainment image or a media image, but is not limited to these.

[0134] According to an embodiment, when the light-emitting display device according to an embodiment of the present disclosure is a vehicle display disposed in the middle part of the dashboard of a vehicle (or vehicle), the driver in the driver's seat and the passenger in the front passenger seat can simultaneously view the same image through light L1 emitted only in the first viewing area VA1 (or the left viewing direction) and light L2 emitted only in the second viewing area VA2 (or the right viewing direction). Therefore, the light-emitting display device according to an embodiment of the present disclosure can display a dual-view image on the display panel 10 based on a first image mode without reducing resolution. Thus, the driver and passenger located on the left and right sides of the display panel 10 can simultaneously view the image displayed on the display panel 10 without reducing resolution.

[0135] Figure 6 This is a view illustrating a method for driving sub-pixels in a second image mode of a light-emitting display device during a Nth frame time period, according to an embodiment of the present disclosure. Figure 7 It shows the basis Figure 6 The method shown is a view of the path of light emitted from the light-emitting part in the method of driving sub-pixels. Figure 8 This is a view illustrating a method for driving sub-pixels in a second image mode of a light-emitting display device during a (N+1) frame time period, according to an embodiment of the present disclosure. Figure 9 It shows the basis Figure 8 The method shown is a view of the path of light emitted from the light-emitting part in the method of driving sub-pixels.

[0136] refer to Figure 6 and Figure 7 In the light-emitting display device according to an embodiment of the present disclosure, a data signal Vdata, a scan signal SS, a first device selection signal DSS1 having a first logic state (or gate off voltage) and a second device selection signal DSS2 having a second logic state (or gate on voltage) for the Nth frame period based on a second image mode can be supplied to the pixel circuit PC of the sub-pixel SP.

[0137] During the Nth frame period of the second image mode, the third thin-film transistor T3 of the pixel circuit PC is turned off by the first device selection signal DSS1 of the first logic state, and the fourth thin-film transistor T4 is turned on by the second device selection signal DSS2 of the second logic state. Additionally, the first thin-film transistor T1 of the pixel circuit PC supplies a data current corresponding to the first data signal Vdata1 to the light-emitting unit EP. The first data signal Vdata1 is supplied through the second thin-film transistor T2, which is turned on by the scan signal SS. Only the first light-emitting device ED1 and the second light-emitting device ED2 of the light-emitting unit EP can emit light based on the data current supplied from the first thin-film transistor T1. Therefore, the light L1 emitted by the light emission of the first light-emitting device ED1 can be emitted only in the first viewing angle region VA1 (or the left viewing angle direction) based on the light guide of the optical element 310.

[0138] Therefore, the display panel 10 can display the first image during the Nth frame period of the second image mode by means of light L1 emitted according to the light emission of the first light-emitting device ED1. During the Nth frame period of the second image mode, the display panel 10 can display the first single-view image by means of independent light emission (or single light emission) of the first light-emitting device ED1 disposed at each of the plurality of sub-pixels SP. For example, a first viewer located on the left side of the display panel 10 can view only the first single-view image during the Nth frame period by means of light L1 emitted only in the first viewing area VA1 (or the left viewing direction). For example, a driver in the driver's seat of a vehicle device can view only the first image by means of light L1 emitted only in the first viewing area VA1 (or the left viewing direction). For example, the first image may be a vehicle navigation image.

[0139] refer to Figure 8 and Figure 9 In the light-emitting display device according to an embodiment of the present disclosure, a data signal Vdata, a scan signal SS, a first device selection signal DSS1 having a second logic state and a second device selection signal DSS2 having a first logic state for the (N+1)th frame period based on a second image mode can be supplied to the pixel circuit PC of the sub-pixel SP.

[0140] During the (N+1)th frame period of the second image mode, the third thin-film transistor T3 of the pixel circuit PC is turned on by the first device selection signal DSS1 of the second logic state, and the fourth thin-film transistor T4 is turned off by the second device selection signal DSS2 of the first logic state. Additionally, the first thin-film transistor T1 of the pixel circuit PC supplies a data current corresponding to the second data signal Vdata2 to the light-emitting unit EP. The second data signal Vdata2 is supplied through the second thin-film transistor T2, which is turned on by the scan signal SS. Only the second light-emitting device ED2 of the first light-emitting device ED1 and the second light-emitting device ED2 of the light-emitting unit EP can emit light based on the data current supplied from the first thin-film transistor T1. Therefore, based on the light guide of the optical element 310, the light L2 emitted from the second light-emitting device ED2 can be emitted only in the second viewing angle region VA2 (or the right viewing angle direction).

[0141] Therefore, the display panel 10 can display the second image during the (N+1)th frame period of the second image mode by means of light L2 emitted according to the light emission of the second light-emitting device ED2. During the (N+1)th frame period of the second image mode, the display panel 10 can display the second single-view image by means of independent light emission (or single light emission) of the second light-emitting device ED2 disposed at each of the plurality of sub-pixels SP. For example, a second viewer located on the right side of the display panel 10 can view only the second single-view image during the (N+1)th frame period by means of light L2 emitted only in the second viewing area VA2 (or the right viewing direction). For example, a passenger in the front passenger seat of a vehicle device can view only the second image by means of light L2 emitted only in the second viewing area VA2 (or the right viewing direction). For example, the second image can be an entertainment image or media image different from the first image, but is not limited thereto.

[0142] The driver of the vehicle equipment can view only the first single-view image through the light guide of the optical component 300 while driving, and cannot view the second single-view image that distracts from driving, so the driver can focus on driving.

[0143] As described above, the first light-emitting device ED1 and the second light-emitting device ED2 disposed at each of the plurality of sub-pixels SP can alternately emit light in frame intervals using different data currents based on a second image mode, and the light-emitting display device can alternately display different first single-view images and second single-view images in frame intervals. Therefore, the light-emitting display device according to the embodiments of the present disclosure can provide different single-view images to the driver and passenger located on the left and right sides of the display panel 10 based on the second image mode. For example, the driver in the driver's seat and the passenger in the front passenger seat can view different images displayed on the display panel 10 separately based on the second image mode.

[0144] Figure 10 It is along Figure 1 Another cross-sectional view taken from line I-I'. Figure 10 This is a view used to explain an optical component according to another embodiment of this disclosure. Therefore, in the following description, only the optical component and related elements will be described; other elements may be used in conjunction with... Figures 1 to 3 The same reference numerals are used in the accompanying drawings; therefore, repeated descriptions of them are omitted. Thus, Figures 1 to 3 The description may include in Figure 10 In the description.

[0145] refer to Figure 10 According to another embodiment of this disclosure, the optical component 300 may include a plurality of optical elements 310. The plurality of optical elements 310 may be related to the above-referenced... Figure 3 The optical elements described are basically the same, therefore, their repeated descriptions are omitted.

[0146] The first light-emitting device ED1 disposed at each of the plurality of sub-pixels SP can be disposed (or aligned) to overlap with the center portion 310b of the corresponding optical element (or cylindrical lens) 310. For example, the first light-emitting device ED1 can be disposed (or aligned) below the center portion 310b of the corresponding optical element 310.

[0147] As an example, the center of the first light-emitting device ED1 can be aligned with the center portion 310b of the corresponding optical element 310. For example, the center of the first light-emitting device ED1 can be aligned below the center portion 310b of the corresponding optical element 310. Therefore, the light emitted by the light emission of the first light-emitting device ED1 disposed at each of the plurality of sub-pixels SP can be emitted in the third viewing direction by the curved portion 310c of the corresponding optical element 310 (i.e., both the first curved portion 310c1 and the second curved portion 310c2). For example, the light emitted by the light emission of the first light-emitting device ED1 can be emitted only in the front viewing direction.

[0148] The second light-emitting device ED2, located at each of the plurality of sub-pixels SP, can be configured (or aligned) to overlap with the second end 310a2 of the corresponding optical element (or cylindrical lens) 310. For example, the center of the second light-emitting device ED2 can be aligned below the second end 310a2 of the corresponding optical element 310. The second light-emitting device ED2 can be configured (or aligned) to overlap with the portion (or boundary portion) between the plurality of optical elements 310. The second light-emitting device ED2 can be configured (or aligned) below the portion (or boundary portion) between two adjacent optical elements 310 among the plurality of optical elements 310.

[0149] The center of the second light-emitting device ED2 can be aligned with the second end 310a2 of the corresponding optical element 310. The center of the second light-emitting device ED2 can also be aligned below the second end 310a2 of the corresponding optical element 310. Furthermore, the center of the second light-emitting device ED2 can be aligned with the portion (or boundary portion) between two adjacent optical elements 310. Therefore, light emitted by the light emission of the second light-emitting device ED2 located at each of the plurality of sub-pixels SP can be emitted in a fourth viewing direction through the curved portion 310c of the corresponding optical element 310. For example, light emitted by the light emission of the second light-emitting device ED2 can be emitted only in the side viewing direction (or the left and right viewing directions).

[0150] Figure 11 It shows the basis Figure 4 The method shown is a view of the path of light emitted from the light-emitting part in the method of driving sub-pixels.

[0151] refer to Figure 4 and Figure 11 In a light-emitting display device according to an embodiment of the present disclosure, a data signal Vdata, a scan signal SS, and a first device selection signal DSS1 and a second device selection signal DSS2 having a first logic state (or gate turn-off voltage) based on a first viewing angle mode (or wide viewing angle mode) are supplied to a pixel circuit PC of a sub-pixel SP.

[0152] The third thin-film transistor T3 of the pixel circuit PC is turned off by the first device selection signal DSS1 of the first logic state, and the fourth thin-film transistor T4 is also turned off by the first device selection signal DSS1 of the first logic state. Furthermore, the first thin-film transistor T1 of the pixel circuit PC supplies a data current corresponding to the data signal Vdata to the light-emitting unit EP. The data signal Vdata is supplied through the second thin-film transistor T2, which is turned on by the scan signal SS. The first light-emitting device ED1 and the second light-emitting device ED2 of the light-emitting unit EP can emit light simultaneously using the same data current supplied from the first thin-film transistor T1. Therefore, the light L1 emitted by the light emission of the first light-emitting device ED1 is emitted only in the third viewing angle region (or the front viewing angle direction) based on the light guide of the optical element 310, and the light L2 emitted by the second light-emitting device ED2 can be emitted only in the fourth viewing angle region (or the side viewing angle direction) based on the light guide of the optical element 310.

[0153] Therefore, in the first viewing angle mode, the display panel 10 can display a wide viewing angle (WVA) general viewing angle image by means of light L1 emitted according to the light emission of the first light-emitting device ED1 and light L2 emitted according to the light emission of the second light-emitting device ED2. For example, the display panel 10 in the first viewing angle mode can display a wide viewing angle (WVA) general viewing image without reducing resolution by simultaneously emitting light from the first light-emitting device ED1 and the second light-emitting device ED2 disposed at each of the plurality of sub-pixels SP. For example, the general viewing image can be an entertainment image or a media image, but is not limited thereto.

[0154] According to an embodiment, the driver in the driver's seat and the passenger in the front passenger seat can simultaneously view a wide-viewing-angle (WVA) general view image based on a first viewing angle mode using light L1 emitted according to light emission from the first light-emitting device ED1 and light L2 emitted according to light emission from the second light-emitting device ED2. Therefore, the light-emitting display device according to an embodiment of this disclosure can display a general view image on the display panel 10 based on the first viewing angle mode without reducing resolution. Thus, the driver and passenger located on the left and right sides of the display panel 10 can simultaneously view the image displayed on the display panel 10 without reducing resolution.

[0155] Figure 12 It shows the basis Figure 6 The method shown is a view of the path of light emitted from the light-emitting part in the method of driving sub-pixels.

[0156] refer to Figure 6 and Figure 12 In the light-emitting display device according to an embodiment of the present disclosure, a data signal Vdata, a scan signal SS, a first device selection signal DSS1 having a first logic state (or gate off voltage) based on a second viewing mode (or narrow viewing mode or privacy mode (or personal security mode)) and a second device selection signal DSS2 having a second logic state (or gate on voltage) are supplied to the pixel circuit PC of the sub-pixel SP.

[0157] In the second viewing angle mode, the third thin-film transistor T3 of the pixel circuit PC is turned off by the first device selection signal DSS1 of the first logic state, and the fourth thin-film transistor T4 is turned on by the second device selection signal DSS2 of the second logic state. Additionally, the first thin-film transistor T1 of the pixel circuit PC supplies a data current corresponding to the first data signal Vdata1 to the light-emitting unit EP. The first data signal Vdata1 is supplied through the second thin-film transistor T2, which is turned on by the scan signal SS. Only the first light-emitting device ED1 of the first light-emitting device ED1 and the second light-emitting device ED2 of the light-emitting unit EP emits light according to the data current supplied from the first thin-film transistor T1. Therefore, the light L1 emitted by the light emitted through the first light-emitting device ED1 can be emitted only in the third viewing angle region FNVA based on the light guide of the optical element 310. The first data signal Vdata1 can correspond to the above reference... Figure 4 and Figure 11 The images displayed in the first-view mode described herein are different personal safety images (or a single image or individual images). For example, the third-view region FNVA can be the front narrow field of view region, the front field of view direction, or the front narrow field of view direction.

[0158] In the second view mode, the second light-emitting device ED2 can remain in a non-emitting state due to the conduction of the fourth thin-film transistor T4.

[0159] Therefore, in the second viewing mode, the display panel 10 can display a front-narrow viewing angle personal safety image by means of the light L1 emitted according to the light emission of the first light-emitting device ED1. For example, in the second viewing mode, the display panel 10 can display a front-narrow viewing angle personal safety image by means of the light L1 emitted by the independent light emission (or a single light emission) of the first light-emitting device ED1 located at each of the plurality of sub-pixels SP. For example, a front viewer located in front of the display panel 10 can only view the personal safety image by means of the light L1 emitted only in the third viewing angle region FNVA, and a side viewer located on the left or right side of the display panel 10 cannot view the personal safety image, thus improving the security of the personal safety image displayed on the display panel 10. For example, the personal safety image can be a personal image, an entertainment image, or a media image, but is not limited thereto.

[0160] Figure 13 It shows the basis Figure 8 The method shown is a view of the path of light emitted from the light-emitting part in the method of driving sub-pixels.

[0161] First, in the second viewing mode of the light-emitting display device according to an embodiment of the present disclosure, multiple sub-pixels SP can be driven in the Nth frame time period and the (N+1)th frame time period.

[0162] In second-view mode, during the Nth frame time period of second-view mode, as referenced above. Figure 6 and Figure 12 The first light-emitting device ED1 of the first light-emitting device ED1 and the second light-emitting device ED2 of the light-emitting section EP can emit light based on the data current supplied from the first thin-film transistor T1. Therefore, during the Nth frame period of the second viewing mode, the display panel 10 can display a front-narrow viewing angle personal security image by means of the light L1 emitted in the third viewing region FNVA, based on the independent light emission (or single light emission) of the first light-emitting device ED1 disposed at each of the plurality of sub-pixels SP.

[0163] refer to Figure 8 and Figure 13 In the light-emitting display device according to an embodiment of the present disclosure, a data signal Vdata, a scan signal SS, a first device selection signal DSS1 having a second logic state and a second device selection signal DSS2 having a first logic state for the (N+1)th frame period based on a second view mode are supplied to the pixel circuit PC of the sub-pixel SP.

[0164] During the (N+1)th frame period of the second view mode, the third thin-film transistor T3 of the pixel circuit PC is turned on by the first device selection signal DSS1 of the second logic state, and the fourth thin-film transistor T4 is turned off by the second device selection signal DSS2 of the first logic state. Additionally, the first thin-film transistor T1 of the pixel circuit PC supplies a data current corresponding to the second data signal Vdata2 to the light-emitting unit EP. The second data signal Vdata2 is supplied through the second thin-film transistor T2, which is turned on by the scan signal SS. Only the second light-emitting device ED2 of the first light-emitting device ED1 and the second light-emitting device ED2 of the light-emitting unit EP can emit light based on the data current supplied from the first thin-film transistor T1. Therefore, based on the light guide of the optical element 310, the light L2 emitted from the second light-emitting device ED2 can be emitted only in the fourth view region (or the side view direction) SNVA.

[0165] Therefore, the display panel 10 can display a personal non-safety image during the (N+1)th frame period of the second image mode by means of light L2 emitted according to the light emission of the second light-emitting device ED2. During the (N+1)th frame period of the second image mode, the display panel 10 can display a personal non-safety image with a narrow side viewing angle by means of light L2 emitted by the independent light emission (or a single light emission) of the second light-emitting device ED2 located at each of the plurality of sub-pixels SP. For example, a side viewer located on the left or right side of the display panel 10 can only view the personal non-safety image by means of light L2 emitted only in the fourth viewing area SNVA, and the side viewer cannot view the personal safe image by means of light L1 emitted only in the third viewing area FNVA. Therefore, the safety of the personal safe image displayed on the display panel 10 can be improved. For example, the personal non-safety image can be an entertainment image or media image that is different from the personal safe image, but is not limited to this.

[0166] As described above, the first light-emitting device ED1 and the second light-emitting device ED2 disposed at each of the plurality of sub-pixels SP can alternately emit light in frame intervals using different data currents based on a second viewing angle mode, and the light-emitting display device can alternately display different personal safety images and personal non-safety images in frame intervals. Therefore, the light-emitting display device according to the embodiments of the present disclosure can provide personal safety images only to front-viewers located in front of the display panel 10 based on a second viewing angle mode, and simultaneously provide personal non-safety images only to side-viewers located to the side of the display panel 10. Therefore, the security of the personal safety images provided to front-viewers can be improved in the light-emitting display device according to the embodiments of the present disclosure.

[0167] Figure 14 It is along Figure 1 Another cross-sectional view taken from line I-I'. Figure 14 This is used to explain the above reference. Figures 1 to 9 The described view shows an embodiment of a modified optical component in a light-emitting display device. Therefore, in the following description, only the optical component and related elements will be described; other elements may be used in conjunction with... Figures 1 to 9 The same reference numerals are used in the accompanying drawings; therefore, repeated descriptions of them are omitted. Thus, Figures 1 to 9 The description may include in Figure 14 In the description.

[0168] refer to Figure 14 According to another embodiment of the present disclosure, the optical component 300 may include a plurality of optical elements 310.

[0169] Each of the plurality of optical elements 310 may include a light-blocking pattern (or barrier pattern). For example, the optical component 300 having the plurality of optical elements 310 may be a light-blocking component or a barrier film. The light-blocking pattern of each of the plurality of optical elements 310 may be made of a material capable of blocking light incident from each of the first light-emitting device ED1 and the second light-emitting device ED2. For example, the light-blocking pattern may be made of a black material, polyamide, or a light-absorbing material.

[0170] The light-blocking pattern of each of the plurality of optical elements 310 can be set (or aligned) to overlap with both the first light-emitting device ED1 and the second light-emitting device ED2 disposed at the corresponding sub-pixel SP in the plurality of sub-pixels SP. Both the first light-emitting device ED1 and the second light-emitting device ED2 can be disposed below a light-blocking pattern. In a plan view, both the first light-emitting device ED1 and the second light-emitting device ED2 can be covered by a light-blocking pattern.

[0171] The light-blocking pattern of each of the plurality of optical elements 310 may include a rectangular shape (or a line shape) having a width D1 and a length. For example, the light-blocking pattern of each of the plurality of optical elements 310 may have a plate shape having a width D1 and a length.

[0172] Each of the plurality of optical elements (or light blocking patterns) 310 may include a first end 310a1, a second end 310a2, and a central portion 310b.

[0173] The first end 310a1 may be one end (or one side end) of each of the plurality of optical elements (or light blocking patterns) 310. The second end 310a2 may be the other end (or the other side end) of each of the plurality of optical elements (or light blocking patterns) 310 opposite to the first end 310a1. The first end 310a1 and the second end 310a2 may be parallel to each other and may be parallel to the data line.

[0174] The central portion 310b may include an intermediate portion between the first end 310a1 and the second end 310a2. The first end 310a1 and the second end 310a2 may be parallel to each other, with the central portion 310b located therebetween. For example, each of the plurality of optical elements (or light-blocking patterns) 310 may have a symmetrical structure (or a left-right symmetrical structure) with respect to the central portion 310b.

[0175] Each of the plurality of optical elements (or light blocking patterns) 310 may include a first portion (or first half portion) 310h1 and a second portion (or second half portion) 310h2.

[0176] The first part 310h1 may include the portion between the central part 310b and the first end 310a1. The second part 310h2 may include the portion between the central part 310b and the second end 310a2.

[0177] The width W3 of a light-blocking pattern can be greater than the maximum length D1 between the first light-emitting device ED1 and the second light-emitting device ED2. The width W3 of the light-blocking pattern can be less than the width W2 of a sub-pixel SP. For example, the width W3 of the light-blocking pattern can be less than the spacing between multiple sub-pixels SP.

[0178] The optical component 300 may also include a plurality of openings 320 disposed between a plurality of optical elements 310. Each of the plurality of openings 320 may be disposed (or configured) between two adjacent optical elements (or light blocking patterns) 310. The center (or central portion) of each of the plurality of openings 320 may be disposed (or aligned) at the center (or central portion) between two adjacent sub-pixels SP.

[0179] The first light-emitting device ED1, located at each of the plurality of sub-pixels SP, can be configured (or aligned) to overlap with the second half 310h2 of the corresponding optical element 310. The first light-emitting device ED1 can be located (or aligned) below the second half 310h2 of the corresponding optical element 310. The outer wall of the first light-emitting device ED1 can overlap with the second rear edge portion of the corresponding optical element 310 corresponding to the second half 310h2. The first light-emitting device ED1 can be located below the second rear edge portion of the corresponding optical element 310.

[0180] Light emitted from the first light-emitting device ED1 located at each of the plurality of sub-pixels SP can pass through relatively adjacent openings 320 among the plurality of openings 320 and be emitted in a first viewing direction. Light emitted from the first light-emitting device ED1 can be emitted only in the left viewing direction. Since the light emitted from the first light-emitting device ED1 can be compared with the above reference... Figures 1 to 9 The light emitted from the first light-emitting device ED1 is described as the same, so its repeated description is omitted.

[0181] The second light-emitting device ED2, located at each of the plurality of sub-pixels SP, can be configured (or aligned) to overlap with the first half 310h1 of the corresponding optical element 310. The second light-emitting device ED2 can be located (or aligned) below the first half 310h1 of the corresponding optical element 310. The outer wall of the second light-emitting device ED2 can overlap with the first rear edge portion of the corresponding optical element 310 corresponding to the first half 310h1. The second light-emitting device ED2 can be located below the first rear edge portion of the corresponding optical element 310.

[0182] Light emitted from the second light-emitting device ED2, located at each of the plurality of sub-pixels SP, can pass through relatively adjacent openings 320 among the plurality of openings 320 and be emitted in a second viewing direction. Light emitted from the second light-emitting device ED2 can be emitted only in the right viewing direction. Since the light emitted from the second light-emitting device ED2 can be compared with the above reference... Figures 1 to 9 The light emitted from the second light-emitting device ED2 is described as the same, so its repeated description is omitted.

[0183] The optical component 300 may also include a protective layer 330 covering a plurality of optical elements (or light-blocking patterns) 310 and a plurality of openings 320. The protective layer 330 may be configured to cover each of the plurality of optical elements 310 and to provide a flat surface on the plurality of optical elements (or light-blocking patterns) 310 and the plurality of openings 320.

[0184] According to the embodiment, the optical component 300 can be covered by the opposing substrate 200. For example, the opposing substrate 200 can be attached (or coupled) to the protective layer 330 of the optical component 300 using an adhesive member. For example, the arrangement position of the optical component 300 can be embedded in the display panel 10 or disposed outside the display panel 10 based on the physical distance (or optical distance) between the light-emitting portion EP and the optical element 310.

[0185] As described above, in a light-emitting display device according to another embodiment of the present disclosure, including an optical component 300 with a light-blocking pattern, the path of light emitted from the light-emitting unit EP based on the method of driving sub-pixels is the same as that described above. Figures 4 to 9 The descriptions are identical; therefore, repeated descriptions are omitted. Thus, the above references... Figure 14 The described light-emitting display device may have the same characteristics as the above reference. Figures 4 to 9 The same effect as the described light-emitting display device.

[0186] Figure 15 It is shown Figure 1 The equivalent circuit diagram of a sub-pixel is shown. Figure 15 The above references Figures 2 to 14The first and second light-emitting devices described are altered to a parallel structure view. Therefore, in the following description, only the parallel structure of the first and second light-emitting devices and related components will be described; other components may be used in conjunction with... Figures 2 to 14 The same reference numerals are used to denote figures; therefore, repeated descriptions are omitted. Figures 2 to 14 The description may include in Figure 15 In the description.

[0187] refer to Figure 15 In another embodiment of the present disclosure, in a sub-pixel SP, the first light-emitting device ED1 and the second light-emitting device ED2 can be electrically connected in parallel.

[0188] The first light-emitting device ED1 and the second light-emitting device ED2 can be connected in parallel between the first thin-film transistor T1 and the second power line PL2. For example, the first light-emitting device ED1 and the second light-emitting device ED2 can be connected in parallel between the second node N2 connected to the first thin-film transistor T1 and the second power line PL2.

[0189] The first electrode of each of the first light-emitting device ED1 and the second light-emitting device ED2 can be commonly connected to the first thin-film transistor T1. The first electrode of each of the first light-emitting device ED1 and the second light-emitting device ED2 can also be commonly connected to the second node N2 connected to the first thin-film transistor T1. Therefore, the first light-emitting device ED1 and the second light-emitting device ED2 can simultaneously receive the data current output from the first thin-film transistor T1.

[0190] The third thin-film transistor T3 is turned on based on the first device select signal DSS1 and can be configured to block current flowing to the first light-emitting device ED1. The third thin-film transistor T3 can be connected in series between the first light-emitting device ED1 and the second power line PL2. Except for the third thin-film transistor T3 being connected in series between the first light-emitting device ED1 and the second power line PL2, the third thin-film transistor T3 is similar to the one referenced above. Figures 2 to 14 The description of the third thin-film transistor T3 is essentially the same, therefore, its repeated description is omitted.

[0191] The fourth thin-film transistor T4 is turned on based on the second device select signal DSS2 and can be configured to block current flowing to the second light-emitting device ED2. The fourth thin-film transistor T4 can be connected in series between the second light-emitting device ED2 and the second power line PL2. Except for the fourth thin-film transistor T4 being connected in series between the second light-emitting device ED2 and the second power line PL2, the fourth thin-film transistor T4 is similar to the one referenced above. Figures 2 to 14 The description of the fourth thin-film transistor T4 is essentially the same; therefore, its repeated description is omitted. For example, see the reference above. Figures 2 to 14The described subpixel SP can be changed to the reference above. Figure 15 The described sub-pixel SP.

[0192] As mentioned above, including the above references Figure 15 The described sub-pixel SP light-emitting display device can have the same characteristics as the above reference. Figures 2 to 14 The described light-emitting display device has the same effect, therefore, its repeated description is omitted.

[0193] It will be apparent to those skilled in the art that various modifications and variations can be made to this disclosure without departing from the spirit or scope thereof. Therefore, this disclosure is intended to cover modifications and variations thereof provided within the scope of the claims and their equivalents.

Claims

1. A light-emitting display device, comprising: A substrate, the substrate comprising a plurality of sub-pixels; as well as An optical component disposed on the substrate, the optical component comprising a plurality of optical elements overlapping each of the plurality of sub-pixels. Each of the plurality of sub-pixels includes: Pixel circuitry, the pixel circuitry being connected to data lines and gate lines; and The light-emitting unit includes a first light-emitting device and a second light-emitting device, which are configured to emit light via a data current supplied from the pixel circuit. Each of the plurality of optical elements is configured to control the travel path of light emitted from each of the first light-emitting device and the second light-emitting device in different directions.

2. The light-emitting display device according to claim 1, in, Each of the first light-emitting device and the second light-emitting device is a light-emitting diode device or a light-emitting diode chip, and The first light-emitting device and the second light-emitting device overlap with one of the corresponding optical elements among the plurality of optical elements.

3. The light-emitting display device according to claim 2, in, Each of the plurality of optical elements includes a cylindrical lens, and The cylindrical lens includes: First end; The second end is opposite to the first end; The central portion, located between the first end and the second end; and The curved portion is located between the first end and the second end.

4. The light-emitting display device according to claim 3, in, The curved portion includes: A first curved portion, the first curved portion being between the central portion and the first end; and The second curved portion, located between the central portion and the second end, is a second curved portion. Wherein, the first light-emitting device is configured to overlap with the first curved portion of the cylindrical lens, and The second light-emitting device is configured to overlap with the second curved portion of the cylindrical lens.

5. The light-emitting display device according to claim 4, wherein, The center of the first light-emitting device is aligned with the center of the first curved portion, and the center of the second light-emitting device is aligned with the center of the second curved portion.

6. The light-emitting display device according to claim 4, wherein, The first and second light-emitting devices configured in each of the plurality of sub-pixels emit light simultaneously with the same data current in a first image mode, and alternately emit light in frame time units with different data currents in a second image mode.

7. The light-emitting display device according to claim 3, in, The first light-emitting device is configured to overlap with the central portion of the cylindrical lens, and The second light-emitting device is configured to overlap with the second end of the cylindrical lens.

8. The light-emitting display device according to claim 7, in, The first and second light-emitting devices, each configured in one of the plurality of sub-pixels, simultaneously emit light in a first mode using the same data current, and In this mode, the first light-emitting device emits light through the data current, while the second light-emitting device does not emit light in the second mode.

9. The light-emitting display device according to claim 7, wherein, The first and second light-emitting devices configured in each of the plurality of sub-pixels emit light simultaneously with the same data current in a first mode, and alternately emit light in frame periods with different data currents in a second mode.

10. The light-emitting display device according to claim 1, in, Each of the plurality of optical elements includes a light-blocking pattern. The optical component further includes multiple openings disposed between the plurality of optical elements. The light-blocking pattern of each of the plurality of optical elements overlaps with both the first light-emitting device and the second light-emitting device disposed in each of the plurality of sub-pixels. In this configuration, the first and second light-emitting devices, each of the plurality of sub-pixels, simultaneously emit light using the same data current in a first mode, and alternately emit light using different data currents in a frame-time unit in a second mode. Light generated from each of the first and second light-emitting devices is emitted through the plurality of openings.

11. The light-emitting display device according to any one of claims 1 to 10, in, The pixel circuit includes: A first thin-film transistor is connected to a first power line, a first node, and a second node, and is configured to control the current flowing to the first power line and the second node based on the voltage of the first node. A second thin-film transistor, which is turned on based on a scan signal applied from the gate line, and is configured to be electrically connected between the data line and the first node; and A capacitor, configured to be electrically connected between the first node and the second node. The first light-emitting device and the second light-emitting device are connected in series or in parallel between the second node and the second power line. The pixel circuit further includes: A third thin-film transistor, which is turned on based on a first device selection signal and configured to block current flowing to the first light-emitting device; and A fourth thin-film transistor, which is turned on based on a second device selection signal and configured to block current flowing to the second light-emitting device.

12. The light-emitting display device according to claim 11, wherein: The third thin-film transistor is electrically connected in parallel with the first light-emitting device, and The fourth thin-film transistor is electrically connected in parallel with the second light-emitting device.

Images