Flexible display device

Abstract

A flexible display device is provided. The flexible display device includes: a first display area including a first data line arranged in a first direction, a first scan line arranged in a second direction intersecting the first direction, and a first pixel arranged in an area defined by the first data line and the first scan line; a second display area including a second data line arranged in the first direction, a second scan line arranged in the second direction, and a second pixel arranged in an area defined by the second data line and the second scan line; a first bending area arranged between the first display area and the second display area; a first circuit unit arranged adjacent to a first side of the first display area; a second circuit unit arranged adjacent to a second side of the first display area; and a third circuit unit arranged adjacent to a first side of the second display area.

Description

Technical Field

[0001] Exemplary embodiments of the invention relate generally to a flexible display device, and more particularly, to an optical device including the flexible display device. Background Art

[0002] Augmented reality is a technology that superimposes a virtual image on a real-world image that a user actually views to provide a single, integrated image. The virtual image may be a text image or a graphic image, while the real-world image may be information about an object that can actually be observed within the field of view of the augmented reality providing device.

[0003] The augmented reality providing device may include a display device for displaying a virtual image and an optical member for providing the virtual image to the user's eyes. The augmented reality providing device may be provided in the form of a pair of glasses that are not only easy to carry around but also easy to wear or take off.

[0004] In order to provide a more realistic augmented reality, it is necessary to increase the number and size of virtual images provided to the user's eyes. To this end, it is necessary to expand the area that the user of the display device is actually viewing, that is, the user's field of view (FOV).

[0005] The above information disclosed in this Background section is only for understanding the background of the inventive concept and therefore it may contain information that does not constitute the prior art. Summary of the invention

[0006] The flexible display device constructed according to the exemplary embodiment of the invention can expand the user's field of view (FOV) by increasing the area viewed by the user of the display device. In addition, the optical device according to the exemplary embodiment can use a single display device to expand the area viewed by the user of the display device, for example, the user's FOV.

[0007] Additional features of the inventive concepts will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the inventive concepts.

[0008] A flexible display device according to an exemplary embodiment includes: a first display area including first data lines arranged in a first direction, first scan lines arranged in a second direction intersecting the first direction, and first pixels arranged in an area defined by the first data lines and the first scan lines; a second display area including second data lines arranged in the first direction, second scan lines arranged in the second direction, and second pixels arranged in an area defined by the second data lines and the second scan lines; a first bending area disposed between the first display area and the second display area; a first circuit unit disposed adjacent to a first side of the first display area; a second circuit unit disposed adjacent to a second side of the first display area; and a third circuit unit disposed adjacent to the first side of the second display area.

[0009] The first circuit unit may be configured to apply a first scan signal to a first scan line of a first display area, the second circuit unit may be configured to apply a first data voltage to a first data line of the first display area, and the third circuit unit may be configured to apply a second scan signal to a second scan line of a second display area.

[0010] The flexible display device may further include a first data connection line disposed in the first bending region and connected to the first data line and the second data line.

[0011] The first circuit unit may be further configured to apply a first scan signal to the first scan line during a first period, and the third circuit unit may be further configured to apply a second scan signal to the second scan line during a second period.

[0012] The second circuit unit may be configured to apply a first data voltage to the first data line, the first data link line, and the second data line during a first period, and apply a second data voltage to the first data line, the first data link line, and the second data line during a second period.

[0013] The flexible display device may further include a carry signal line disposed in the first bending region and connected to the first circuit unit and the second circuit unit.

[0014] The first circuit unit may be configured to apply the scan signal from the second display area to the nearest first scan line as a carry signal.

[0015] The flexible display device may further include: a pad area including a first wiring line connected to the second circuit unit and a pad connected to the first wiring line; and a flexible circuit board attached to the pad, wherein the second circuit unit may be disposed between the pad area and the first display area.

[0016] The flexible display device may further include a fourth circuit unit disposed in the first bending region, wherein the fourth circuit unit may be configured to apply the second data voltage to the second data line of the second display region.

[0017] The first circuit unit may be configured to apply a first scan signal to the first scan line during a first period, and the third circuit unit may be configured to apply a second scan signal to the second scan line during a second period.

[0018] The second circuit unit may be configured to apply the first data voltage to the first data line during the first period, and the fourth circuit unit may be configured to apply the second data voltage to the second data line during the second period.

[0019] The flexible display device may further include a first scan connection line disposed in the first bending region and connected to the first scan line and the second scan line.

[0020] The first circuit unit may be configured to apply a first data voltage to a first data line of a first display area, the second circuit unit may be configured to apply a first scan signal to a first scan line, a first scan connection line, and a second scan line of the first display area, and the third circuit unit may be configured to apply a second data voltage to a second data line of a second display area.

[0021] The first display area may be disposed on a first side of the second circuit unit, and the second display area may be disposed on a second side of the second circuit unit opposite to the first side of the second circuit unit.

[0022] The first circuit unit may be configured to apply a first scan signal to a first scan line of a first display area, the second circuit unit may be configured to apply a first data voltage to a first data line of the first display area and a second data voltage to a second data line of a second display area, and the third circuit unit may be configured to apply a second scan signal to a second scan line of a second display area.

[0023] The flexible display device may further include: a pad disposed in the first bending region and electrically connected to the second circuit unit; and a flexible circuit board attached to the pad.

[0024] The flexible display device may further include a third display area, the third display area including third data lines arranged in the first direction, third scan lines arranged in the second direction, and third pixels arranged in an area defined by the third data lines and the third scan lines, wherein the first bending area may be set between the third display area and the first display area.

[0025] An optical device according to another exemplary embodiment includes: a lens including a first surface and multiple sides; a display panel disposed on at least two sides of the lens; and multiple reflective members disposed in the lens to reflect light from the display panel to the first surface, wherein the display panel includes: a first display area disposed on a first side of the lens to provide light to the first side of the lens; and a second display area disposed on a second side of the lens extending from one end of the first side of the lens to provide light to the second side of the lens.

[0026] The plurality of reflective members may include a first reflective member that reflects light emitted from the first display area and incident through a first side of the lens toward a first surface of the lens, and a second reflective member that reflects light emitted from the second display area and incident through a second side of the lens toward the first surface of the lens.

[0027] The display panel may also include: a first curved area located between the first display area and the second display area; a third display area arranged on a third side of the lens extending from one end of the second side of the lens to provide light to the third side of the lens; a second curved area arranged between the second display area and the third display area; a fourth display area arranged on a fourth side of the lens extending from one end of the third side of the lens to provide light to the fourth side of the lens; and a third curved area arranged between the third display area and the fourth display area.

[0028] The plurality of reflective members may further include a third reflective member that reflects light emitted from the third display area and incident through a third side of the lens toward the first surface of the lens; and a fourth reflective member that reflects light emitted from the fourth display area and incident through a fourth side of the lens toward the first surface of the lens.

[0029] The optical device may further include: a first flexible circuit board attached to an end of the first display area adjacent to the fourth display area; and a second flexible circuit board attached to an end of the fourth display area adjacent to the first display area.

[0030] The display panel may also include: a third display area, which is arranged on a third side of the lens extending from the other end of the first side of the lens to provide light to the third side of the lens; a first curved area, which is arranged between the first display area and the third display area; a fourth display area, which is arranged on a fourth side of the lens extending from the other end of the second side of the lens to provide light to the fourth side of the lens; and a second curved area, which is arranged between the second display area and the fourth display area.

[0031] The plurality of optical members may include a third reflective member that reflects light emitted from the third display area and incident through a third side of the lens toward the first surface of the lens; and a fourth reflective member that reflects light emitted from the fourth display area and incident through a fourth side of the lens toward the first surface of the lens.

[0032] The optical device may further include a first flexible circuit board attached to the pad area between the first display area and the second display area.

[0033] According to yet another exemplary embodiment, an optical device includes: a first lens including a first surface and a plurality of sides; a second lens including a first surface and a plurality of sides; a display panel including a first display area disposed on one of the plurality of sides of the first lens, a second display area disposed on one of the plurality of sides of the second lens, and a first curved area disposed between the first display area and the second display area; a first reflective member disposed in the first lens to reflect light from the first display area toward a first surface of the first lens; and a second reflective member disposed in the second lens to reflect light from the second display area toward the first surface of the second lens.

[0034] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings illustrate exemplary embodiments of the invention and together with the description serve to explain the inventive concept. The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification.

[0036] Figure 1 is a perspective view of an optical device according to an exemplary embodiment.

[0037] Figure 2 yes Figure 1 An exploded perspective view of the optical device.

[0038] Figure 3 yes Figure 2 A perspective view of a first lens and a first display device.

[0039] Figure 4A and Figure 4B It is shown Figure 2 A side view of how the first lens and the first display device implement augmented reality.

[0040] Figure 5 According to an exemplary embodiment Figure 2 An expanded view of a first display device.

[0041] Figure 6 yes Figure 5 A cross-sectional view of a first display area and a first bending area of ​​a first display panel.

[0042] Figure 7 It is shown as an example Figure 5 Flow chart of a driving method of a first display device.

[0043] Figure 8 According to another exemplary embodiment Figure 2 An expanded view of a first display device.

[0044] Fig. 9 It is shown Figure 5 Flow chart of another exemplary driving method of a first display device.

[0045] Fig.10 According to yet another exemplary embodiment Figure 2 An expanded view of a first display device.

[0046] Fig.11 is an exploded perspective view of an optical device according to another exemplary embodiment.

[0047] Fig.12 yes Fig.11 A perspective view of a first lens and a first display device.

[0048] Fig.13 According to another exemplary embodiment Fig.11 An expanded view of a first display device.

[0049] Fig.14 It is shown as an example Fig.11 Flow chart of a driving method of a first display device.

[0050] Fig.15 According to another exemplary embodiment Fig.11 An expanded view of a first display device.

[0051] Fig.16 is an exploded perspective view of an optical device according to another exemplary embodiment.

[0052] Fig.17 It is shown Fig.16 A perspective view of a first lens, a second lens and a first display device.

[0053] Fig.18 According to another exemplary embodiment Fig.16 An expanded view of a first display device.

[0054] Fig.19 It is shown as an example Fig.16Flow chart of a driving method of a first display device. DETAILED DESCRIPTION

[0055] In the following description, for the purpose of explanation, many specific details are set forth to provide a thorough understanding of various exemplary embodiments or implementations of the invention. As used herein, "embodiment" and "implementation" are interchangeable words and are non-limiting examples of devices or methods using one or more inventive concepts disclosed herein. However, it is apparent that various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. In other cases, well-known structures and devices are shown in block diagram form to avoid making various exemplary embodiments unnecessarily obscure. In addition, various exemplary embodiments may be different, but need not be exclusive. For example, without departing from the inventive concept, the specific shape, configuration and characteristics of an exemplary embodiment may be used or implemented in another exemplary embodiment.

[0056] Unless otherwise specified, the exemplary embodiments shown will be understood as providing exemplary features of different details of some ways in which the inventive concept can be implemented in practice. Therefore, unless otherwise specified, the features, components, modules, layers, films, panels, regions and / or aspects, etc. (hereinafter, individually or collectively referred to as "elements") of the various embodiments may be further combined, separated, interchanged and / or rearranged without departing from the inventive concept.

[0057] The use of cross hatching and / or shading is usually provided in the drawings to make the boundaries between adjacent elements clear. Thus, unless otherwise specified, the presence or absence of cross hatching or shading does not convey or indicate any preference or requirement for the specific material, material properties, size, ratio, commonality between the elements shown and / or any other characteristics, attributes, properties, etc. of the elements. In addition, in the drawings, the size and relative size of the elements may be exaggerated for the purpose of clarity and / or description. When the exemplary embodiments may be implemented differently, a specific process sequence may be performed differently from the described sequence. For example, two continuously described processes may be performed substantially simultaneously or in an order opposite to the described sequence. In addition, the same reference numerals represent the same elements.

[0058] When an element or layer is referred to as being "on" another element or layer, "connected to" or "bonded to" another element or layer, the element or layer may be directly on, directly connected to or directly bonded to the other element or layer, or there may be an intermediate element or layer. However, when an element or layer is referred to as being "directly on" another element or layer, "directly connected to" or "directly bonded to" another element or layer, there is no intermediate element or layer. For this reason, the term "connection" may refer to a physical connection, an electrical connection and / or a fluid connection with or without an intermediate element. In addition, the D1 axis, the D2 axis and the D3 axis are not limited to the three axes of a rectangular coordinate system (such as an x-axis, a y-axis and a z-axis), but may be interpreted in a broader sense. For example, the D1 axis, the D2 axis and the D3 axis may be perpendicular to each other, or may represent different directions that are not perpendicular to each other. For the purpose of this disclosure, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" may be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z, such as XYZ, XYY, YZ, and ZZ. As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items.

[0059] Although the terms "first", "second", etc. may be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another element. Therefore, without departing from the disclosed teachings, the first element discussed below may be referred to as the second element.

[0060] For descriptive purposes, spatially relative terms such as "under," "below," "under," "down," "above," "up," "above," "higher," "side" (e.g., as in "sidewall"), etc., may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. In addition to the orientations depicted in the accompanying drawings, the spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture. For example, if the device in the accompanying drawings is turned over, an element described as "under" or "beneath" other elements or features would subsequently be positioned as "above" the other elements or features. Thus, the exemplary term "under" can include both above and below orientations. In addition, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations), with the spatially relative descriptors used herein interpreted accordingly.

[0061] The terms used herein are for the purpose of describing specific embodiments, rather than intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms "one", "one (person / kind)" and "the (said)" are also intended to include plural forms. In addition, when the term "includes" and its variations and / or "comprising" and its variations are used in this specification, it is indicated that there are stated features, wholes, steps, operations, elements, components and / or their groups, but it is not excluded that there are or add one or more other features, wholes, steps, operations, elements, components and / or their groups. It is also noted that the terms "substantially", "approximately" and other similar terms as used herein are used as approximate terms rather than as degree terms, so as to explain the inherent deviations of measured values, calculated values ​​and / or provided values ​​that will be recognized by those of ordinary skill in the art.

[0062] Various exemplary embodiments are described herein with reference to cross-sections and / or exploded illustrations of schematic diagrams as idealized exemplary embodiments and / or intermediate structures. As such, variations in the shapes of the illustrations, such as those caused by manufacturing techniques and / or tolerances, are anticipated. Therefore, the exemplary embodiments disclosed herein should not necessarily be interpreted as being limited to the specific illustrated shapes of the regions, but will include deviations in shapes caused by, for example, manufacturing. In this manner, the regions shown in the drawings may be schematic in nature, and the shapes of these regions may not reflect the actual shapes of the regions of the device, and such limitations are not necessarily intended.

[0063] According to the practice in the art, some exemplary embodiments are described and shown in the accompanying drawings in terms of functional blocks, units and / or modules. It will be understood by those skilled in the art that these blocks, units and / or modules are physically implemented by electronic (or optical) circuits (such as logic circuits, discrete components, microprocessors, hard-wired circuits, memory elements, wiring connections, etc.) that can be formed using semiconductor-based manufacturing techniques or other manufacturing techniques. In the case where the blocks, units and / or modules are implemented by microprocessors or other similar hardware, they can be programmed and controlled using software (e.g., microcode) to perform the various functions discussed here, and the blocks, units and / or modules can be optionally driven by firmware and / or software. It is also contemplated that each block, unit and / or module can be implemented by dedicated hardware, or implemented as a combination of dedicated hardware that performs some functions and processors that perform other functions (e.g., one or more programmed microprocessors and associated circuits). In addition, without departing from the scope of the inventive concept, each block, unit and / or module of some exemplary embodiments can be physically divided into two or more interactive and discrete blocks, units and / or modules. Furthermore, the blocks, units and / or modules of some exemplary embodiments may be physically combined into more complex blocks, units and / or modules without departing from the scope of the inventive concept.

[0064] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure is a part. Terms (such as those defined in general dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and should not be interpreted in an idealized or overly formal sense unless explicitly so defined herein.

[0065] Figure 1 is a perspective view of an optical device according to an exemplary embodiment. Figure 2 yes Figure 1 An exploded perspective view of the optical device.

[0066] Reference Figure 1 and Figure 2 The optical device 1 includes a supporting frame 20, a first lens frame 21, a second lens frame 22, a first temple 31, a second temple 32, a first lens 110, a second lens 120, a first display device 210, a second display device 220, a first reflecting member 411, a second reflecting member 412, a third reflecting member 413, and a fourth reflecting member 414, and a fifth reflecting member 421, a sixth reflecting member 422, a seventh reflecting member 423, and an eighth reflecting member 424. The optical device 1 may be a display device for realizing augmented reality or a virtual image.

[0067] The terms "top" and "top surface" as used herein refer to the Z-axis direction, and the terms "bottom" and "bottom surface" as used herein refer to the direction opposite to the Z-axis direction. In addition, the terms "left", "right", "above", and "below" as used herein refer to the opposite direction of the X-axis direction, the X-axis direction, the Y-axis direction, and the opposite direction of the Y-axis direction, respectively.

[0068] The support frame 20 supports the first lens 110 and the second lens 120 together with the first lens frame 21 and the second lens frame 22. The first lens 110 may be surrounded by the support frame 20 and the first lens frame 21. The second lens 120 may be surrounded by the support frame 20 and the second lens frame 22.

[0069] The support frame 20 may be disposed on upper sides of the first lens 110 and the second lens 120. The support frame 20 may extend in a width direction of the first lens 110 (eg, an X-axis direction).

[0070] The first lens frame 21 may be disposed on the left, lower, and right sides of the first lens 110. The first lens frame 21 may be coupled to the support frame 20. The second lens frame 22 may be disposed on the left, lower, and right sides of the second lens 120. The second lens frame 22 may be coupled to the support frame 20. The first lens frame 21 and the second lens frame 22 may include a nose pad.

[0071] Figure 2 The support frame 20, the first lens frame 21 and the second lens frame 22 are shown to be formed separately and then combined together, however, the inventive concept is not limited thereto. For example, in some exemplary embodiments, the support frame 20, the first lens frame 21 and the second lens frame 22 may be formed as a whole.

[0072] The first temple 31 may be fixed to the left end of the support frame 20. The second temple 32 may be fixed to the right end of the support frame 20. The first temple 31 and the second temple 32 may be fixed to the support frame 20 via a fixing member such as a screw.

[0073] The support frame 20, the first lens frame 21, the second lens frame 22, the first temple 31 and the second temple 32 may include plastic, metal, or both. In some exemplary embodiments, the first lens frame 21 and the second lens frame 22 may be omitted.

[0074] The first lens 110 and the second lens 120 may be formed of glass or plastic to be transparent or translucent. Therefore, the user can see the real world image through the first lens 110 and the second lens 120. In some exemplary embodiments, the first lens 110 and the second lens 120 may have refractive power in consideration of the user's vision.

[0075] The first lens 110 and the second lens 120 may have a substantially hexahedral shape including a top surface, a bottom surface, and first to fourth sides. The top surface of the first lens 110 may be a surface facing the right eye RE of the user, and may be a surface through which the first reflective member 411, the second reflective member 412, the third reflective member 413, and the fourth reflective member 414 emit light from the first display device 210. The bottom surface of the first lens 110 may be an outer surface of the first lens 110. The top surface of the second lens 120 may be a surface facing the left eye LE of the user, and may be a surface through which the fifth reflective member 421, the sixth reflective member 422, the seventh reflective member 423, and the eighth reflective member 424 emit light from the second display device 220. The bottom surface of the second lens 120 may be an outer surface of the second lens 120.

[0076] The first lens 110 and the second lens 120 are not limited to Figure 1 and Figure 2In some exemplary embodiments, the first lens 110 and the second lens 120 may have various polyhedral shapes including a first surface, a second surface, and a plurality of side surfaces. In some exemplary embodiments, the first lens 110 and the second lens 120 may have various other shapes other than a polyhedral shape, such as a cylinder, an elliptical cylinder, a semi-cylinder, a semi-elliptical cylinder, a collapsed cylinder, or a collapsed elliptical cylinder. Here, a collapsed cylinder or an elliptical cylinder refers to a cylinder or an elliptical cylinder having an uneven radius.

[0077] The first to fourth reflecting members 411 to 414 are disposed in the first lens 110. The fifth to eighth reflecting members 421 to 424 are disposed in the second lens 120. The first to fourth reflecting members 411 to 414 and the fifth to eighth reflecting members 421 to 424 may be small-sized mirrors such as pin mirrors. Figure 1 and Figure 2 The first to fourth and fifth to eighth reflective members 411 to 414 and 421 to 424 are shown to have circular cross-sections, however, in some exemplary embodiments, the first to fourth and fifth to eighth reflective members 411 to 414 and 421 to 424 may have elliptical or polygonal cross-sections.

[0078] The first to fourth reflective members 411 to 414 may reflect an image displayed by the first display device 210 and may provide an image to the user's right eye RE. The fifth to eighth reflective members 421 to 424 may reflect an image displayed by the second display device 220 and may provide an image to the user's left eye LE.

[0079] The first to fourth reflection members 411 to 414 and the fifth to eighth reflection members 421 to 424 may be formed to have a size smaller than the pupil of the right eye RE or the left eye LE. For example, the first to fourth reflection members 411 to 414 and the fifth to eighth reflection members 421 to 424 may be formed to have a diameter of 500 μm to 4 mm. In this way, since the user focuses on the real-world image, the user may not be able to easily recognize the first to fourth reflection members 411 to 414 and the fifth to eighth reflection members 421 to 424. However, as the sizes of the first to fourth reflection members 411 to 414 and the fifth to eighth reflection members 421 to 424 are reduced, the brightness of the images provided to the right eye RE and the left eye LE of the user from the first display device 210 and the second display device 220 may be reduced. As such, the sizes of the first to fourth and fifth to eighth reflective members 411 to 414 and 421 to 424 may be set in consideration of whether the user can recognize them and the brightness of an image provided to the user.

[0080] The first to fourth reflecting members 411 to 414 and the fifth to eighth reflecting members 421 to 424 may have the following features: Figure 1 and Figure 2 In this case, the first to fourth reflective members 411 to 414 and the fifth to eighth reflective members 421 to 424 may each have two bases, one of which may be a reflective surface and the other of which may not be a reflective surface.

[0081] Figure 1 and Figure 2 It is shown that four reflective members are disposed in each of the first lens 110 and the second lens 120, however, the inventive concept is not limited to a specific number of reflective members disposed in each of the first lens 110 and the second lens 120. For example, in some exemplary embodiments, more than four reflective members may be disposed in each of the first lens 110 and the second lens 120.

[0082] Each of the first display device 210 and the second display device 220 may display a virtual image for implementing augmented reality. The first display device 210 may include a first display panel 211, a first circuit board 212, and a second circuit board 213. The second display device 220 may include a second display panel 221, a third circuit board 222, and a fourth circuit board 223.

[0083] The first display panel 211 may be disposed on a plurality of sides of the first lens 110. The first display panel 211 may be disposed to surround a plurality of sides of the first lens 110. The first display panel 211 may be hidden by the support frame 20 and the first lens frame 21.

[0084] The second display panel 221 may be disposed on a plurality of sides of the second lens 120. The second display panel 221 may be disposed to surround a plurality of sides of the second lens 120. The second display panel 221 may be hidden by the support frame 20 and the second lens frame 22.

[0085] The positions of the first display panel 211 and the second display panel 221 are not limited to Figure 1 and Figure 2 The location shown in .

[0086] The first display panel 211 and the second display panel 221 may be flexible display panels having flexibility, and thus may be bendable, foldable, or rollable. For example, the first display panel 211 and the second display panel 221 may be organic light emitting diode (OLED) display panels or quantum dot-OLED (QD-OLED) display panels. Figure 6 The first display panel 211 and the second display panel 221 are described with reference to the OLED display panels shown in FIG.

[0087] The first circuit board 212 and the second circuit board 213 may be attached to the first display panel 211. The third circuit board 222 and the fourth circuit board 223 may be attached to the second display panel 221. The first circuit board 212, the second circuit board 213, the third circuit board 222, and the fourth circuit board 223 may be flexible printed circuit boards (FPCBs), and may be bendable, foldable, or rollable.

[0088] A power supply unit for supplying power to the first display device 210 and the second display device 220 may be embedded in one of the first temple 31 and the second temple 32. In this case, a first cable 214 for connecting the first circuit board 212 and the second circuit board 213 to the power supply unit and a second cable 224 for connecting the third circuit board 222 and the fourth circuit board 223 to the power supply unit may be additionally provided. When the power supply unit is embedded in the second temple 32, the first cable 214 may extend toward the second temple 32. The first cable 214 may be longer than the second cable 224.

[0089] An optical path conversion layer may be provided between the first display device 210 and the side surface of the first lens 110 and between the second display device 220 and the side surface of the second lens 120. The optical path conversion layer may adjust the path of light from the first display device 210 to travel toward the first to fourth reflective members 411 to 414. The optical path conversion layer may adjust the path of light from the second display device 220 to travel toward the fifth to eighth reflective members 421 to 424. The optical path conversion layer may be, for example, a prism sheet including a prism.

[0090] The polarizing film may be disposed between the first display device 210 and the side of the first lens 110 and between the second display device 220 and the side of the second lens 120. Each polarizing film may include a linear polarizer and a phase delay film such as a quarter wavelength (λ / 4) plate. In this case, the linear polarizer may be disposed on the side of the first lens 110 or the second lens 120, and the phase delay film may be disposed between the linear polarizer and the first display device 210 or the second display device 220. The polarizing film may provide light from the first display device 210 to the side of the first lens 110, and may block light incident on the first display device 210 from the side of the first lens 110 from being reflected by the first display device 210 and emitted back toward the side of the first lens 110. In addition, the polarizing film may provide light from the second display device 220 to the side of the second lens 120, and may block light incident on the second display device 220 from the side of the second lens 120 from being reflected by the second display device 220 and emitted back toward the side of the second lens 120.

[0091] According to the shown Figure 1 to Figure 2 In the exemplary embodiment of the present invention, images from the first display device 210 disposed on multiple sides of the first lens 110 are reflected toward the first surface of the first lens 110 through multiple reflection members (i.e., first to fourth reflection members 411 to 414). In addition, images from the second display device 220 disposed on multiple sides of the second lens 120 are reflected toward the first surface of the second lens 120 through multiple reflection members (i.e., fifth to eighth reflection members 421 to 424). Therefore, the area that the user of each display device is actually viewing, i.e., the user's field of view (FOV), can be expanded.

[0092] Figure 3 yes Figure 2 A perspective view of a first lens and a first display device. Figure 4A and Figure 4B It is shown Figure 2 A side view of how the first lens and the first display device implement augmented reality.

[0093] Reference Figure 3 , Figure 4A and Figure 4B , the first display panel 211 of the first display device 210 is disposed on a plurality of sides of the first lens 110. The first display panel 211 may include a first display area DA1 disposed on a first side of the first lens 110, a second display area DA2 disposed on a second side of the first lens 110, a third display area DA3 disposed on a third side of the first lens 110, and a fourth display area DA4 disposed on a fourth side of the first lens 110. The first side, the second side, the third side, and the fourth side of the first lens 110 may be an upper side, a left side, a lower side, and a right side of the first lens 110, respectively.

[0094] In addition, the first display panel 211 may include a first bending area BA1 bendable or foldable between the first display area DA1 and the second display area DA2, a second bending area BA2 bendable or foldable between the second display area DA2 and the third display area DA3, and a third bending area BA3 bendable or foldable between the third display area DA3 and the fourth display area DA4. The first bending area BA1 may be bent at a boundary between the upper side and the left side of the first lens 110. The second bending area BA2 may be bent at a boundary between the left side and the lower side of the first lens 110. The third bending area BA3 may be bent at a boundary between the lower side and the right side of the first lens 110.

[0095] The first display area DA1 and the second display area DA2 may be connected by the first bending area BA1, the second display area DA2 and the third display area DA3 may be connected by the second bending area BA2, and the third display area DA3 and the fourth display area DA4 may be connected by the third bending area BA3. The first display area DA1 and the fourth display area DA4 may not be connected and may be separated from each other.

[0096] The first reflective member 411 may be inclined at a first angle θ1 to reflect and provide the first image IM1 from the first display area DA1 to the user's right eye RE. The first reflective member 411 may be disposed closest to an upper side of the first lens 110 where the first display area DA1 is disposed.

[0097] The second reflective member 412 may be inclined at a second angle θ2 to reflect the second image IM2 from the second display area DA2 and provide the second image IM2 to the user's right eye RE. The second reflective member 412 may be disposed closest to the left side of the first lens 110 where the second display area DA2 is disposed.

[0098] The third reflective member 413 may be inclined at a third angle θ3 to reflect and provide a third image IM3 from the third display area DA3 to the user's right eye RE. The third reflective member 413 may be disposed closest to a lower side of the first lens 110 where the third display area DA3 is disposed.

[0099] The fourth reflective member 414 may be inclined at a fourth angle θ4 to reflect a fourth image IM4 from the fourth display area DA4 and provide the fourth image IM4 to the user's right eye RE. The fourth reflective member 414 may be disposed closest to the right side of the first lens 110 where the fourth display area DA4 is disposed.

[0100] like Figure 4A and Figure 4B As shown in the figure, the first angle θ1, the second angle θ2, the third angle θ3 and the fourth angle θ4 refer to the angles at which the first reflecting member 411, the second reflecting member 412, the third reflecting member 413 and the fourth reflecting member 414 are tilted in the height direction (e.g., the Y-axis direction) or the width direction (e.g., the X-axis direction) of the first lens 110 relative to the thickness direction (e.g., the Z-axis direction) of the first lens 110.

[0101] The first reflecting member 411 and the third reflecting member 413 may be disposed symmetrically with respect to the center of the first lens 110 in the height direction (e.g., the Y-axis direction) of the first lens 110. In this case, the first angle θ1 and the third angle θ3 may be substantially the same. Similarly, the second reflecting member 412 and the fourth reflecting member 414 may be disposed symmetrically with respect to the center of the first lens 110 in the width direction (e.g., the X-axis direction) of the first lens 110. In this case, the second angle θ2 and the fourth angle θ4 may be substantially the same.

[0102] like Figure 4A As shown in , the first image IM1 displayed in the first display area DA1 of the first display panel 211 may be reflected by the first reflective member 411. The first image IM1 reflected by the first reflective member 411 may be emitted through the first surface of the first lens 110 and may then be focused at a point on the retina of the user's right eye RE. Figure 4A As shown in FIG. 4 , the third image IM3 displayed in the third display area DA3 of the first display panel 211 may be reflected by the third reflective member 413. The third image IM3 reflected by the third reflective member 413 may be emitted through the first surface of the first lens 110 and may then be focused at a point on the retina of the user's right eye RE. Therefore, in addition to the first image IM1 and the third image IM3 as virtual images, the user may also view the object A as a real-world image without changing his or her focus on the object A.

[0103] like Figure 4B As shown in , the second image IM2 displayed in the second display area DA2 of the first display panel 211 may be reflected by the second reflective member 412. The second image IM2 reflected by the second reflective member 412 may be emitted through the first surface of the first lens 110 and then may be focused at a point on the retina of the user's right eye RE. Figure 4B As shown in FIG. 4 , the fourth image IM4 displayed in the fourth display area DA4 of the first display panel 211 may be reflected by the fourth reflective member 414. The fourth image IM4 reflected by the fourth reflective member 414 may be emitted through the first surface of the first lens 110 and may then be focused at a point on the retina of the user's right eye RE. Therefore, in addition to the second image IM2 and the fourth image IM4 as virtual images, the user may also view the object A as a real-world image without changing his or her focus on the object A.

[0104] The second display device 220 may be similar to the above reference Figure 3 , Figure 4A and Figure 4B The first display device 210 described above is implemented in substantially the same manner, and thus, repeated description thereof will be omitted to avoid redundancy.

[0105] Figure 5 According to an exemplary embodiment Figure 2 An expanded view of a first display device.

[0106] Reference Figure 5 , the first display panel 211 of the first display device 210 may include a first display area DA1, a second display area DA2, a third display area DA3, a fourth display area DA4, a first bending area BA1, a second bending area BA2, a third bending area BA3, a first pad area PA1 and a second pad area PA2. The first display device 210 may include a first scan driving circuit unit SDC1, a second scan driving circuit unit SDC2, a third scan driving circuit unit SDC3, a fourth scan driving circuit unit SDC4, a first integrated driving circuit unit DDC1 and a second integrated driving circuit unit DDC2.

[0107] The first display area DA1 may include a first data line DL1, a first scan line SL1, and a first pixel PX1. The first data line DL1 may be arranged in a first direction DR1, and the first scan line SL1 may be arranged in a second direction DR2 intersecting the first direction DR1. The first pixel PX1 may be arranged in an area defined by the first data line DL1 and the first scan line SL1. For example, the first pixel PX1 may be arranged at an intersection between the first data line DL1 and the first scan line SL1. Figure 6 The first pixel PX1 of the first display area DA1 is described in more detail.

[0108] The second display area DA2 may include a second data line DL2, a second scan line SL2, and a second pixel PX2. The second data line DL2 may be arranged in the first direction DR1, and the second scan line SL2 may be arranged in the second direction DR2. The second pixel PX2 may be arranged in an area defined by the second data line DL2 and the second scan line SL2. For example, the second pixel PX2 may be arranged at an intersection between the second data line DL2 and the second scan line SL2.

[0109] The third display area DA3 may include a third data line DL3, a third scan line SL3, and a third pixel PX3. The third data line DL3 may be arranged in the first direction DR1, and the third scan line SL3 may be arranged in the second direction DR2. The third pixel PX3 may be arranged in an area defined by the third data line DL3 and the third scan line SL3. For example, the third pixel PX3 may be arranged at an intersection between the third data line DL3 and the third scan line SL3.

[0110] The fourth display area DA4 may include a fourth data line DL4, a fourth scan line SL4, and a fourth pixel PX4. The fourth data line DL4 may be arranged in the first direction DR1, and the fourth scan line SL4 may be arranged in the second direction DR2. The fourth pixel PX4 may be arranged in an area defined by the fourth data line DL4 and the fourth scan line SL4. For example, the fourth pixel PX4 may be arranged at an intersection between the fourth data line DL4 and the fourth scan line SL4.

[0111] like Figure 3 As shown in , the length of the first lens 110 in the width direction (or X-axis direction) is greater than the length of the first lens 110 in the height direction (or Y-axis direction). As such, the lengths of the first display area DA1 and the third display area DA3 respectively disposed on the upper side and the lower side of the first lens 110 in the first direction DR1 may be greater than the lengths of the second display area DA2 and the fourth display area DA4 respectively disposed on the left side and the right side of the first lens 110 in the first direction DR1. In addition, as Figure 3As shown in , when the length of the first lens 110 in the thickness direction (or Z-axis direction) is uniform on each side of the first lens 110, the lengths of the first display area DA1, the second display area DA2, the third display area DA3 and the fourth display area DA4 in the second direction DR2 may be substantially the same as each other.

[0112] The first bending area BA1 may be disposed between the first display area DA1 and the second display area DA2. The first bending area BA1 may include a first data link line DCL1 connecting the first data line DL1 and the second data line DL2. The first bending area BA1 may include a first carry signal line CRL1 connecting the first scan driving circuit unit SDC1 and the second scan driving circuit unit SDC2. Pixels may not be formed in the first bending area BA1.

[0113] The second bending area BA2 may be disposed between the second display area DA2 and the third display area DA3. The conductive lines and pixels may not be formed in the second bending area BA2.

[0114] The third bending area BA3 may be disposed between the third display area DA3 and the fourth display area DA4. The third bending area BA3 may include a second data link line DCL2 connecting the third data line DL3 and the fourth data line DL4. The third bending area BA3 may include a second carry signal line CRL2 connecting the third scan driving circuit unit SDC3 and the fourth scan driving circuit unit SDC4. Pixels may not be formed in the third bending area BA3.

[0115] The first display panel 211 may be formed to be thinner in the first, second, and third bending areas BA1, BA2, and BA3 than in the first, second, third, and fourth display areas DA1, DA2, DA3, and DA4 to reduce bending stress. For example, some inorganic and organic films formed in the first, second, third, and fourth display areas DA1, DA2, DA3, and DA4 may not be formed in the first, second, and third bending areas BA1, BA2, and BA3.

[0116] The first pad area PA1 includes a first wiring line RL1 connected to the first integrated driving circuit unit DDC1 and a first pad DP1 connected to the first wiring line RL1. The first pad DP1 may be electrically connected to the first circuit board 212. The first circuit board 212 may be attached to the first pad DP1 via, for example, an anisotropic conductive film.

[0117] The second pad area PA2 includes a second wiring line RL2 connected to the fourth scan driving circuit unit SDC4 and the second integrated driving circuit unit DDC2 and a second pad DP2 connected to the second wiring line RL2. The second pad DP2 may be electrically connected to the second circuit board 213. The second circuit board 213 may be attached to the second pad DP2 via, for example, an anisotropic conductive film.

[0118] The first scan driving circuit unit SDC1 may be disposed on a first side of the first display area DA1. The first scan driving circuit unit SDC1 may be disposed adjacent to a long side of the first display area DA1. The first scan driving circuit unit SDC1 is connected to the first scan line SL1 of the first display area DA1. The first scan driving circuit unit SDC1 may receive a first scan control signal from the first integrated driving circuit unit DDC1, may generate a first scan signal according to the first scan control signal, and may sequentially apply the first scan signal to the first scan line SL1.

[0119] The second scan driving circuit unit SDC2 may be disposed on a first side of the second display area DA2. The second scan driving circuit unit SDC2 may be disposed adjacent to a long side of the second display area DA2. The second scan driving circuit unit SDC2 is connected to the second scan line SL2 of the second display area DA2. The second scan driving circuit unit SDC2 may receive a first carry signal from the first scan driving circuit unit SDC1 via the first carry signal line CRL1, may generate a second scan signal according to the first carry signal, and may sequentially apply the second scan signal to the second scan line SL2. The first scan driving circuit unit SDC1 may output the last scan signal output from the first scan driving circuit unit SDC1 as a carry signal.

[0120] The third scan driving circuit unit SDC3 may be disposed on a first side of the third display area DA3. The third scan driving circuit unit SDC3 may be disposed adjacent to a long side of the third display area DA3. The third scan driving circuit unit SDC3 is connected to the third scan line SL3 of the third display area DA3. The third scan driving circuit unit SDC3 may receive a second carry signal from the fourth scan driving circuit unit SDC4 via the second carry signal line CRL2, may generate a third scan signal according to the second carry signal, and may sequentially apply the third scan signal to the third scan line SL3. The third scan driving circuit unit SDC3 may output the last scan signal output from the fourth scan driving circuit unit SDC4 as a carry signal.

[0121] The fourth scan driving circuit unit SDC4 may be disposed on a first side of the fourth display area DA4. The fourth scan driving circuit unit SDC4 may be disposed adjacent to a long side of the fourth display area DA4. The fourth scan driving circuit unit SDC4 is connected to a fourth scan line SL4 of the fourth display area DA4. The fourth scan driving circuit unit SDC4 may receive a second scan control signal from the second integrated driving circuit unit DDC2, may generate a fourth scan signal according to the second scan control signal, and may sequentially apply the fourth scan signal to the fourth scan line SL4.

[0122] Each of the first scan driving circuit unit SDC1, the second scan driving circuit unit SDC2, the third scan driving circuit unit SDC3, and the fourth scan driving circuit unit SDC4 may include a thin film transistor (TFT) as a switching element. In this case, the TFT of each of the first scan driving circuit unit SDC1, the second scan driving circuit unit SDC2, the third scan driving circuit unit SDC3, and the fourth scan driving circuit unit SDC4 may be formed together with the TFT of the first pixel PX1 of the first display area DA1, the TFT of the second pixel PX2 of the second display area DA2, the TFT of the third pixel PX3 of the third display area DA3, and the TFT of the fourth pixel PX4 of the fourth display area DA4.

[0123] The first integrated driving circuit unit DDC1 may be disposed on a second side of the first display area DA1. The first integrated driving circuit unit DDC1 may be disposed adjacent to a short side of the first display area DA1. The first integrated driving circuit unit DDC1 may be disposed between the first display area DA1 and the first pad area PA1.

[0124] The first integrated driving circuit unit DDC1 receives the first timing signal, the first video data, and the second video data via the first wiring line RL1. The first integrated driving circuit unit DDC1 may generate a first scan control signal from the first timing signal, and may output the first scan control signal to the first scan driving circuit unit SDC1. The first integrated driving circuit unit DDC1 may generate a first data control signal from the first timing signal. The first integrated driving circuit unit DDC1 may generate a first data voltage according to the first data control signal and the first video data while the first scan signal is applied, and may apply the first data voltage to the first data line DL1, the first data link line DCL1, and the second data line DL2. The first integrated driving circuit unit DDC1 may generate a second data voltage according to the first data control signal and the second video data while the second scan signal is applied, and may apply the second data voltage to the first data line DL1, the first data link line DCL1, and the second data line DL2.

[0125] The second integrated driving circuit unit DDC2 may be disposed on a second side of the fourth display area DA4. The second integrated driving circuit unit DDC2 may be disposed adjacent to a short side of the fourth display area DA4. The second integrated driving circuit unit DDC2 may be disposed between the fourth display area DA4 and the second pad area PA2.

[0126] The second integrated driving circuit unit DDC2 receives the second timing signal, the third video data and the fourth video data via the second wiring line RL2. The second integrated driving circuit unit DDC2 can generate a second scan control signal from the second timing signal, and can output the second scan control signal to the fourth scan driving circuit unit SDC4. The second integrated driving circuit unit DDC2 can generate a second data control signal from the second timing signal. The second integrated driving circuit unit DDC2 can generate a fourth data voltage according to the second data control signal and the fourth video data while the fourth scan signal is applied, and can apply the fourth data voltage to the third data line DL3, the second data link line DCL2 and the fourth data line DL4. The second integrated driving circuit unit DDC2 can generate a third data voltage according to the second data control signal and the third video data while the third scan signal is applied, and can apply the third data voltage to the third data line DL3, the second data link line DCL2 and the fourth data line DL4.

[0127] The first integrated driving circuit unit DDC1 and the second integrated driving circuit unit DDC2 may be formed as an integrated circuit (IC).

[0128] In some exemplary embodiments, one of the first integrated driving circuit unit DDC1 and the second integrated driving circuit unit DDC2 may be omitted. In this case, the second data line DL2 of the second display area DA2 and the third data line DL3 of the third display area DA3 may be connected via a third data connection line. The first pixel PX1 of the first display area DA1, the second pixel PX2 of the second display area DA2, the third pixel PX3 of the third display area DA3, and the fourth pixel PX4 of the fourth display area DA4 may receive a data voltage from one of the first integrated driving circuit unit DDC1 and the second integrated driving circuit unit DDC2.

[0129] According to the shown Figure 5 In the exemplary embodiment shown in , since the first display device 210 includes a plurality of bending areas (i.e., a first bending area BA1, a second bending area BA2, and a third bending area BA3) that can be bent, the first display device 210 can be easily bent along a boundary between an upper side and a left side of the first lens 110, a boundary between a left side and a lower side of the first lens 110, and a boundary between a lower side and a right side of the first lens 110.

[0130] In addition, according to the shown Figure 5 In an exemplary embodiment, the first pixel PX1 of the first display area DA1 and the second pixel PX2 of the second display area DA2 can receive a data voltage from a single integrated driving circuit unit (e.g., the first integrated driving circuit unit DDC1), and the third pixel PX3 of the third display area DA3 and the fourth pixel PX4 of the fourth display area DA4 can receive a data voltage from a single integrated driving circuit unit (e.g., the second integrated driving circuit unit DDC2).

[0131] The second display device 220 may be similar to the above reference Figure 5 The first display device 210 described above is implemented in substantially the same manner, and thus, a repeated description thereof will be omitted.

[0132] Figure 6 yes Figure 5 A cross-sectional view of a first display area and a first bending area of ​​a first display panel.

[0133] Reference Figure 6 , the first display area DA1 of the first display device 210 may include a substrate 1100 , a TFT layer 1230 , a light emitting element layer 1240 , and a thin film encapsulation layer 1300 .

[0134] The TFT layer 1230 is formed on the substrate 1100. The TFT layer 1230 includes a TFT 1235, a gate insulating film 1236, an interlayer insulating film 1237, a passivation film 1238, and a planarization film 1239.

[0135] A buffer film may be formed on the substrate 1100. The buffer film may be formed on the substrate 1100 to protect the TFT 1235 and the light emitting element, which are susceptible to moisture, from moisture penetrating the substrate 1100. The buffer film may include a plurality of inorganic films alternately stacked. For example, the buffer film may be formed as a layer in which silicon oxide (SiO x ) film, silicon nitride (SiN x ) films and / or silicon oxynitride (SiON) films are alternately stacked. In some exemplary embodiments, the buffer film may be omitted.

[0136] TFT 1235 is formed on substrate 1100 (e.g., on a buffer film). Each TFT 1235 includes an active layer 1231, a gate electrode 1232, a source electrode 1233, and a drain electrode 1234. FIG. 4 shows each TFT 1235 as having a top gate structure in which the gate electrode 1232 is disposed above the active layer 1231, but the inventive concept is not limited thereto. For example, in some exemplary embodiments, TFT 1235 may have a bottom gate structure in which the gate electrode 1232 is disposed below the active layer 1231 or a double gate structure in which the gate electrode 1232 is disposed not only above the active layer 1231 but also below the active layer 1231.

[0137] The active layer 1231 is formed on the substrate 1100 (eg, on the buffer film). The active layer 1231 may be formed of a silicon-based semiconductor material or an oxide-based semiconductor material. In some exemplary embodiments, a light shielding layer for blocking external light from being incident on the active layer 1231 may be formed between the buffer film and the active layer 1231.

[0138] The gate insulating film 1236 may be formed on the active layer 1231. The gate insulating film 1236 may be formed as an inorganic film such as, for example, a silicon oxide film, a silicon nitride film, or a multi-layer film thereof.

[0139] The gate electrode 1232 and the gate line may be formed on the gate insulating film 1236. The gate electrode 1232 and the gate line may be formed as a single-layer film or a multi-layer film using molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), or an alloy thereof.

[0140] An interlayer insulating film 1237 may be formed on the gate electrode 1232 and the gate line. The interlayer insulating film 1237 may be formed as an inorganic film such as, for example, a silicon oxide film, a silicon nitride film, or a multilayer film thereof.

[0141] The source electrode 1233, the drain electrode 1234, and the data line may be formed on the interlayer insulating film 1237. The source electrode 1233 and the drain electrode 1234 may be connected to the active layer 1231 through a contact hole penetrating the gate insulating film 1236 and the interlayer insulating film 1237. The source electrode 1233, the drain electrode 1234, and the data line may be formed as a single-layer film or a multi-layer film using Mo, Al, Cr, Au, Ti, Ni, Nd, Cu, or an alloy thereof.

[0142] A passivation film 1238 may be formed on the source electrode 1233, the drain electrode 1234, and the data line to insulate the TFT 1235. The passivation film 1238 may be formed as an inorganic film such as, for example, a silicon oxide film, a silicon nitride film, or a multilayer film thereof.

[0143] The planarization film 1239 may be formed on the passivation film 1238 to planarize a height difference formed by the TFT 1235. The planarization film 1239 may be formed as an organic film using acrylic resin, epoxy resin, phenol resin, polyamide resin, or polyimide resin.

[0144] The light emitting element layer 1240 is formed on the TFT layer 1230. The light emitting element layer 1240 includes a light emitting element and a pixel defining film 1244.

[0145] The light emitting element and the pixel defining film 1244 are formed on the planarization film 1239. The light emitting element may be an OLED. In this case, each light emitting element may include an anode electrode 1241, a light emitting layer 1242, and a cathode electrode 1243.

[0146] The anode electrode 1241 may be formed on the planarization film 1239. The anode electrode 1241 may be connected to the drain electrode 1234 through a contact hole penetrating the passivation film 1238 and the planarization film 1239.

[0147] The pixel defining film 1244 may be formed to cover the edge of the anode electrode 1241 to define the first pixel PX1. Each first pixel PX1 may be a region where the anode electrode 1241, the light emitting layer 1242, and the cathode electrode 1243 are sequentially stacked. As such, holes from the anode electrode 1241 and electrons from the cathode electrode 1243 may be combined in the light emitting layer 1242 to emit light.

[0148] The light emitting layer 1242 may be formed on the anode electrode 1241 and the pixel defining film 1244. The light emitting layer 1242 may emit one of red light, green light, and blue light. The red light may have a peak wavelength range of about 620 nm to about 750 nm, the green light may have a peak wavelength range of about 495 nm to about 570 nm, and the blue light may have a peak wavelength range of about 450 nm to about 495 nm. Alternatively, the light emitting layer 1242 may be a white light emitting layer that emits white light. In this case, the light emitting layer 1242 may have a stack of a red light emitting layer, a green light emitting layer, and a blue light emitting layer, and may be a common layer formed in common for each first pixel PX1, and the first display device 210 may further include a color filter for displaying red, green, and blue.

[0149] The light emitting layer 1242 may include a hole transport layer, an emission layer, and an electron transport layer. The light emitting layer 1242 may have a tandem structure having two or more stacks, in which case a charge generation layer may be formed between the stacks.

[0150] The cathode electrode 1243 may be formed on the light emitting layer 1242. The cathode electrode 1243 may be formed to cover the light emitting layer 1242. The cathode electrode 1243 may be a common layer commonly formed for each first pixel PX1.

[0151] When the light emitting element layer 1240 is formed as a top-emitting light emitting element layer 1240 that emits light in a direction toward the second substrate (e.g., in an upward direction), the anode electrode 1241 may be formed of a metal material having a high reflectivity (such as a stack of Al and Ti (e.g., Ti / Al / Ti), a stack of Al and indium tin oxide (ITO) (e.g., ITO / Al / ITO), a silver (Ag)-palladium (Pd)-copper (Cu) (APC) alloy, or a stack of an APC alloy and ITO (e.g., ITO / APC / ITO)), and the cathode electrode 1243 may be formed of a transparent conductive oxide (TCO) material (such as ITO or indium zinc oxide (IZO) that allows light to pass therethrough) or a semi-transmissive conductive material (such as magnesium (Mg), Ag, or an alloy thereof). When the cathode electrode 1243 is formed of a semi-transmissive conductive material, the emission efficiency of the light emitting element layer 1240 may be improved due to the microcavity effect.

[0152] When the light emitting element layer 1240 is formed as a bottom emission type light emitting element layer 1240 that emits light in a downward direction, the anode electrode 1241 may be formed of a TCO material (such as ITO or IZO) or a semi-transmissive conductive material (such as Mg, Ag or an alloy thereof), and the cathode electrode 1243 may be formed of a metal material having a high reflectivity (such as a stack of Al and Ti (e.g., Ti / Al / Ti), a stack of Al and ITO (e.g., ITO / Al / ITO), an APC alloy, or a stack of an APC alloy and ITO (e.g., ITO / APC / ITO). When the anode electrode 1241 is formed of a semi-transmissive conductive material, the emission efficiency of the light emitting element layer 1240 may be improved due to the microcavity effect.

[0153] The thin film encapsulation layer 1300 is formed on the light emitting element layer 1240. The thin film encapsulation layer 1300 prevents oxygen or moisture from penetrating into the light emitting layer 1242 and the cathode electrode 1243. To this end, the thin film encapsulation layer 1300 may include at least one inorganic film. The inorganic film may be formed of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, or titanium oxide. The thin film encapsulation layer 1300 may also include at least one organic film. The organic film may have a sufficient thickness to prevent foreign particles from entering the light emitting layer 1242 and the cathode electrode 1243 through the thin film encapsulation layer 1300. The organic film may include one of epoxy resin, acrylate, and urethane acrylate. In some exemplary embodiments, an encapsulation substrate may be disposed on the light emitting element layer 1240 instead of the thin film encapsulation layer 1300.

[0154] The second display area DA2, the third display area DA3, and the fourth display area DA4 of the first display device 210 may be the same as those described above. Figure 6 The manner described for the first display area DA1 is implemented in substantially the same manner, and thus, a repeated description thereof will be omitted.

[0155] In some exemplary embodiments, the first bending area BA1, the second bending area BA2, and the third bending area BA3 of the first display device 210 may be removed. Figure 6 All or at least one of the planarization film 1239, the pixel definition film 1244, and the thin film encapsulation layer 1300 shown in the figure may be removed to reduce bending stress.

[0156] The second display device 220 may be similar to the above reference Figure 6 The first display device 210 described above is implemented in substantially the same manner, and thus, a repeated description thereof will be omitted.

[0157] Figure 7 It is shown as an example Figure 5 Flow chart of a driving method of a first display device.

[0158] Reference Figure 7 In S101, during a first period, the first scan driving circuit unit SDC1 sequentially applies a first scan signal to the first scan line SL1, and the first integrated driving circuit unit DDC1 applies a first data voltage to the first data line DL1, the first data link line DCL1, and the second data line DL2. Therefore, the first pixel PX1 of the first display area DA1 may display a first image IM1 according to the first data voltage. The first image IM1 in the first display area DA1 may be reflected by the first reflective member 411 to be provided to the right eye RE of the user.

[0159] In S102, during the first period, the fourth scan driving circuit unit SDC4 sequentially applies the fourth scan signal to the fourth scan line SL4, and the second integrated driving circuit unit DDC2 applies the fourth data voltage to the third data line DL3, the second data link line DCL2, and the fourth data line DL4. Therefore, the fourth pixel PX4 of the fourth display area DA4 can display the fourth image IM4 according to the fourth data voltage. The fourth image IM4 in the fourth display area DA4 can be reflected by the fourth reflective member 414 to be provided to the right eye RE of the user.

[0160] In S103, during the second period, the second scan driving circuit unit SDC2 sequentially applies the second scan signal to the second scan line SL2, and the first integrated driving circuit unit DDC1 applies the second data voltage to the first data line DL1, the first data link line DCL1, and the second data line DL2. Therefore, the second pixel PX2 of the second display area DA2 can display the second image IM2 according to the second data voltage. The second image IM2 in the second display area DA2 can be reflected by the second reflective member 412 to be provided to the right eye RE of the user.

[0161] In S104, during the second period, the third scan driving circuit unit SDC3 sequentially applies the third scan signal to the third scan line SL3, and the second integrated driving circuit unit DDC2 applies the third data voltage to the third data line DL3, the second data link line DCL2, and the fourth data line DL4. Therefore, the third pixel PX3 of the third display area DA3 may display the third image IM3 according to the third data voltage. The third image IM3 in the third display area DA3 may be reflected by the third reflective member 413 to be provided to the right eye RE of the user.

[0162] According to the shown Figure 7 In an exemplary embodiment, the first image IM1, the second image IM2, the third image IM3, and the fourth image IM4 of the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4 can be provided to the user's right eye RE. In this way, since the user can view four virtual images and one real-world image, the area of ​​the first display device 210 that the user is actually viewing, that is, the user's FOV, can be expanded.

[0163] The driving method of the second display device 220 is the same as that of the above reference Figure 7 The driving methods described are basically the same, and therefore, repeated descriptions thereof will be omitted.

[0164] Figure 8 According to another exemplary embodiment Figure 2 An expanded view of a first display device.

[0165] According to the shown Figure 8 The first display device of the exemplary embodiment is Figure 5 The difference between the first display device and the second display device is that the third integrated driving circuit unit DDC3 is arranged in the first bending area BA1, and the fourth integrated driving circuit unit DDC4 is arranged in the third bending area BA3. Figure 5 The difference of the first display device is described according to the shown Figure 8 A first display device of an embodiment.

[0166] Reference Figure 8 In the first bending area BA1, a first data connection line DCL1 (not shown) is formed to connect the first data line DL1 to the second data line DL2. Figure 8 In the third bending area BA3, a second data link line DCL2 (not shown) is formed to connect the third data line DL3 and the fourth data line DL4. Figure 8 ).

[0167] In the first bending area BA1, the third integrated driving circuit unit DDC3 may be disposed adjacent to the second display area DA2. The third integrated driving circuit unit DDC3 may extend in the second direction DR2. The third integrated driving circuit unit DDC3 receives the third data control signal and the second video data via the first wiring line RL1. The third integrated driving circuit unit DDC3 may generate a second data voltage according to the third data control signal and the second video data while the second scan signal is applied, and may apply the second data voltage to the second data line DL2.

[0168] In the third bending area BA3, the fourth integrated driving circuit unit DDC4 may be disposed adjacent to the third display area DA3. The fourth integrated driving circuit unit DDC4 may extend in the second direction DR2. The fourth integrated driving circuit unit DDC4 receives the fourth data control signal and the third video data via the second wiring line RL2. The fourth integrated driving circuit unit DDC4 may generate a third data voltage according to the fourth data control signal and the third video data while the third scan signal is applied, and may apply the third data voltage to the third data line DL3.

[0169] The third integrated driving circuit unit DDC3 and the fourth integrated driving circuit unit DDC4 may be formed as an IC.

[0170] According to the shown Figure 8 An exemplary embodiment of Figure 5 Compared with the case where the first integrated driving circuit unit DDC1 shown in FIG. 1 applies the second data voltage to the first data line DL1, the first data link line DCL1 and the second data line DL2, since the transmission length of the second data voltage can be reduced, the influence of the wiring resistance on the second data voltage can be reduced. Figure 5 Compared with the case where the second integrated driving circuit unit DDC2 shown in the figure applies the third data voltage to the third data line DL3, the second data link line DCL2 and the fourth data line DL4, the transmission length of the third data voltage can be reduced, so the influence of the wiring resistance on the third data voltage can be reduced.

[0171] The second display device 220 may be similar to the above reference Figure 8 The first display device 210 described above is implemented in substantially the same manner, and thus, a repeated description thereof will be omitted.

[0172] Fig. 9 is a schematic diagram showing a method according to another exemplary embodiment Figure 5 Flow chart of a driving method of a first display device.

[0173] Reference Fig. 9 In S201, during a first period, the first scan driving circuit unit SDC1 sequentially applies a first scan signal to the first scan line SL1, and the first integrated driving circuit unit DDC1 applies a first data voltage to the first data line DL1. Therefore, the first pixel PX1 of the first display area DA1 may display a first image IM1 according to the first data voltage. The first image IM1 in the first display area DA1 may be reflected by the first reflective member 411 to be provided to the right eye RE of the user.

[0174] In S202, during the first period, the fourth scan driving circuit unit SDC4 sequentially applies the fourth scan signal to the fourth scan line SL4, and the second integrated driving circuit unit DDC2 applies the fourth data voltage to the fourth data line DL4. Therefore, the fourth pixel PX4 of the fourth display area DA4 may display the fourth image IM4 according to the fourth data voltage. The fourth image IM4 in the fourth display area DA4 may be reflected by the fourth reflective member 414 to be provided to the right eye RE of the user.

[0175] In S203, during the second period, the second scan driving circuit unit SDC2 sequentially applies the second scan signal to the second scan line SL2, and the third integrated driving circuit unit DDC3 applies the second data voltage to the second data line DL2. Therefore, the second pixel PX2 of the second display area DA2 can display the second image IM2 according to the second data voltage. The second image IM2 in the second display area DA2 can be reflected by the second reflective member 412 to be provided to the right eye RE of the user.

[0176] In S204, during the second period, the third scan driving circuit unit SDC3 sequentially applies the third scan signal to the third scan line SL3, and the fourth integrated driving circuit unit DDC4 applies the third data voltage to the third data line DL3. Therefore, the third pixel PX3 of the third display area DA3 may display the third image IM3 according to the third data voltage. The third image IM3 in the third display area DA3 may be reflected by the third reflective member 413 to be provided to the right eye RE of the user.

[0177] According to the shown Fig. 9In an exemplary embodiment, the first image IM1, the second image IM2, the third image IM3, and the fourth image IM4 of the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4 can be provided to the user's right eye RE. In this way, since the user can view four virtual images and one real-world image, the area of ​​the first display device 210 that the user is actually viewing, that is, the user's FOV, can be expanded.

[0178] The driving method of the second display device 220 is the same as that of the above reference Fig. 9 The driving methods described are basically the same, and therefore, repeated descriptions thereof will be omitted.

[0179] Fig.10 According to another exemplary embodiment Figure 2 An expanded view of a first display device.

[0180] According to the shown Fig.10 The first display device of the exemplary embodiment is Figure 5 The difference of the first display device is that the first integrated driving circuit unit DDC1 is arranged on the first side of the first display area DA1, the second integrated driving circuit unit DDC2 is arranged on the first side of the second display area DA2, the third integrated driving circuit unit DDC3 is arranged on the first side of the third display area DA3, the fourth integrated driving circuit unit DDC4 is arranged on the first side of the fourth display area DA1, the first scanning driving circuit unit SDC1 is arranged on the second side of the first display area DA1, and the second scanning driving circuit unit SDC2 is arranged on the second side of the fourth display area DA4. In the following, the focus will be mainly on Figure 5 The difference of the first display device is described according to the shown Fig.10 A first display device of an exemplary embodiment of the present invention.

[0181] Reference Fig.10 , the first scan driving circuit unit SDC1 may be disposed on the second side of the first display area DA1. The first scan driving circuit unit SDC1 may be disposed adjacent to the short side of the first display area DA1. The first scan driving circuit unit SDC1 may be connected to the first scan line SL1 of the first display area DA1, the second scan line SL2 of the second display area DA2, and the first scan connection line SCL1 connecting the first scan line SL1 and the second scan line SL2. The first scan driving circuit unit SDC1 may receive a first scan control signal from the first integrated driving circuit unit DDC1, may generate a first scan signal according to the first scan control signal, and may sequentially apply the first scan signal to the first scan line SL1, the first scan connection line SCL1, and the second scan line SL2.

[0182] The second scan driving circuit unit SDC2 may be disposed on a second side of the fourth display area DA4. The second scan driving circuit unit SDC2 may be disposed adjacent to a short side of the fourth display area DA4. The second scan driving circuit unit SDC2 may be connected to the third scan line SL3 of the third display area DA3, the fourth scan line SL4 of the fourth display area DA4, and the second scan connection line SCL2 connecting the third scan line SL3 and the fourth scan line SL4. The second scan driving circuit unit SDC2 may receive a second scan control signal from the fourth integrated driving circuit unit DDC4, may generate a second scan signal according to the second scan control signal, and may sequentially apply the second scan signal to the third scan line SL3, the second scan connection line SCL2, and the fourth scan line SL4.

[0183] The first integrated driving circuit unit DDC1 may be disposed on a first side of the first display area DA1. The first integrated driving circuit unit DDC1 may be disposed adjacent to a long side of the first display area DA1. The first integrated driving circuit unit DDC1 receives a first timing signal and first video data via a wiring line connected to the first pad DP1. The first integrated driving circuit unit DDC1 may generate a first scan control signal from the first timing signal, and may output the first scan control signal to the first scan driving circuit unit SDC1. The first integrated driving circuit unit DDC1 may generate a first data control signal from the first timing signal. The first integrated driving circuit unit DDC1 may generate a first data voltage according to the first data control signal and the first video data while the first scan signal is applied, and may apply the first data voltage to the first data line DL1.

[0184] The second integrated driving circuit unit DDC2 may be disposed on a first side of the second display area DA2. The second integrated driving circuit unit DDC2 may be disposed adjacent to a long side of the second display area DA2. The second integrated driving circuit unit DDC2 receives a first timing signal and a second video data via a wiring line connected to the first pad DP1. The second integrated driving circuit unit DDC2 may generate a second data control signal from the first timing signal. The second integrated driving circuit unit DDC2 may generate a second data voltage according to the second data control signal and the second video data while the first scan signal is applied, and may apply the second data voltage to the second data line DL2.

[0185] The third integrated driving circuit unit DDC3 may be disposed on a first side of the third display area DA3. The third integrated driving circuit unit DDC3 may be disposed adjacent to a long side of the third display area DA3. The third integrated driving circuit unit DDC3 receives the second timing signal and the third video data via a wiring line connected to the second pad DP2. The third integrated driving circuit unit DDC3 may generate a third data control signal from the second timing signal. The third integrated driving circuit unit DDC3 may generate a third data voltage according to the third data control signal and the third video data while the second scan signal is applied, and may apply the third data voltage to the third data line DL3.

[0186] The fourth integrated driving circuit unit DDC4 may be disposed on a first side of the fourth display area DA4. The fourth integrated driving circuit unit DDC4 may be disposed adjacent to a long side of the fourth display area DA4. The fourth integrated driving circuit unit DDC4 receives the second timing signal and the fourth video data via a wiring line connected to the second pad DP2. The fourth integrated driving circuit unit DDC4 may generate a second scan control signal from the second timing signal, and may output the second scan control signal to the second scan driving circuit unit SDC2. The fourth integrated driving circuit unit DDC4 may generate a fourth data control signal from the second timing signal. The fourth integrated driving circuit unit DDC4 may generate a fourth data voltage according to the fourth data control signal and the fourth video data while the second scan signal is applied, and may apply the fourth data voltage to the fourth data line DL4.

[0187] The first scan driving circuit unit SDC1 sequentially applies the first scan signal to the first scan line SL1 and the second scan line SL2, the first integrated driving circuit unit DDC1 applies the first data voltage to the first data line DL1, and the second integrated driving circuit unit DDC2 applies the second data voltage to the second data line DL2. Therefore, the first pixel PX1 of the first display area DA1 can display the first image according to the first data voltage, and the second pixel PX2 of the second display area DA2 can display the second image according to the second data voltage. The first image in the first display area DA1 can be reflected by the first reflective member 411 to be provided to the right eye RE of the user, and the second image in the second display area DA2 can be reflected by the second reflective member 412 to be provided to the right eye RE of the user.

[0188] The second scan driving circuit unit SDC2 sequentially applies the second scan signal to the fourth scan line SL4 and the third scan line SL3, the third integrated driving circuit unit DDC3 applies the third data voltage to the third data line DL3, and the fourth integrated driving circuit unit DDC4 applies the fourth data voltage to the fourth data line DL4. Therefore, the third pixel PX3 of the third display area DA3 can display the third image according to the third data voltage, and the fourth pixel PX4 of the fourth display area DA4 can display the fourth image according to the fourth data voltage. The third image in the third display area DA3 can be reflected by the third reflective member 413 to be provided to the right eye RE of the user, and the fourth image in the fourth display area DA4 can be reflected by the fourth reflective member 414 to be provided to the right eye RE of the user.

[0189] According to the shown Fig.10 An exemplary embodiment of Figure 5 Compared with the case where the first integrated driving circuit unit DDC1 shown in FIG. 1 applies the second data voltage to the first data line DL1, the first data link line DCL1 and the second data line DL2, since the transmission length of the second data voltage can be reduced, the influence of the wiring resistance on the second data voltage can be reduced. Figure 5 Compared with the case where the second integrated driving circuit unit DDC2 shown in the figure applies the third data voltage to the third data line DL3, the second data link line DCL2 and the fourth data line DL2, the transmission length of the third data voltage can be reduced, and thus the influence of the wiring resistance on the third data voltage can be reduced.

[0190] In addition, the scan driving circuit unit may be additionally arranged in the first bending area BA1 and the third bending area BA3. In this case, the first scan connection line SCL1 may not be formed in the first bending area BA1, and the second scan connection line SCL2 may not be formed in the third bending area BA3. The scan driving circuit unit arranged in the first bending area BA1 may be connected to the second scan line SL2, and the scan driving circuit unit arranged in the third bending area BA3 may be connected to the third scan line SL3. In this case, the first scan driving circuit unit SDC1 may output the first scan signal to the first scan line SL1, the second scan driving circuit unit SDC2 may output the second scan signal to the second scan line SL2, the third scan driving circuit unit SDC3 may output the third scan signal to the third scan line SL3, and the fourth scan driving circuit unit SDC4 may output the fourth scan signal to the fourth scan line SL4.

[0191] The second display device 220 may be similar to the above reference Fig.10 The first display device 210 described above is implemented in substantially the same manner, and thus, repeated description thereof will be omitted.

[0192] Fig.11 is an exploded perspective view of an optical device according to an exemplary embodiment. Fig.12 yes Fig.11 A perspective view of a first lens and a first display device. In the following, we will mainly focus on Figure 2 and Figure 3 The differences in the optical devices are described Fig.11 and Fig.12 optical device.

[0193] Reference Fig.11 and Fig.12 , the first display panel 211 of the first display device 210 may be disposed on a plurality of sides of the first lens 110. The first display panel 211 may include a first display area DA1 disposed on a first side of the first lens 110, a second display area DA2 disposed on a second side of the first lens 110, a third display area DA3 disposed on a third side of the first lens 110, and a fourth display area DA4 disposed on a fourth side of the first lens 110. The first side, the second side, the third side, and the fourth side of the first lens 110 may be an upper side, a right side, a left side, and a lower side of the first lens 110, respectively.

[0194] In addition, the first display panel 211 may include a first bending area BA1 bendable or foldable between the first display area DA1 and the third display area DA3 and a second bending area BA2 bendable or foldable between the second display area DA2 and the fourth display area DA4. The first bending area BA1 may be bent at a boundary between the upper side and the left side of the first lens 110. The second bending area BA2 may be bent at a boundary between the right side and the lower side of the first lens 110.

[0195] In addition, the first display panel 211 may include a pad area PA disposed between the first display area DA1 and the second display area DA2 . The pad area PA may be bent at a boundary between the upper and right sides of the first lens 110 .

[0196] The first display area DA1 and the second display area DA2 may be connected through the pad area PA, the first display area DA1 and the third display area DA3 may be connected through the first bending area BA1, and the second display area DA2 and the fourth display area DA4 may be connected through the second bending area BA2. The second display area DA2 and the third display area DA3 may not be connected and may be separated from each other.

[0197] The first reflective member 411 may be Figure 4A1 to reflect the first image from the first display area DA1, thereby providing the first image to the user's right eye RE. The first reflective member 411 may be disposed closest to an upper side of the first lens 110 where the first display area DA1 is disposed.

[0198] The second reflective member 412 may be Figure 4B 4 to reflect the second image from the second display area DA2, thereby providing the second image to the user's right eye RE. The second reflective member 412 may be disposed closest to the right side of the first lens 110 where the second display area DA2 is disposed.

[0199] The third reflective member 413 may be Figure 4B 2 to reflect the third image from the third display area DA3, thereby providing the third image to the user's right eye RE. The third reflective member 413 may be disposed closest to the left side of the first lens 110 where the third display area DA3 is disposed.

[0200] The fourth reflective member 414 may be Figure 4A 3 to reflect the fourth image from the fourth display area DA4, thereby providing the fourth image to the user's right eye RE. The fourth reflective member 414 may be disposed closest to the lower side of the first lens 110 where the fourth display area DA4 is disposed.

[0201] Return to reference Figure 4A and Figure 4B , the first angle θ1, the second angle θ2, the third angle θ3 and the fourth angle θ4 refer to the angles at which the first reflecting member 411, the second reflecting member 412, the third reflecting member 413 and the fourth reflecting member 414 are inclined in the height direction (or Y-axis direction) or the width direction (or X-axis direction) of the first lens 110 relative to the thickness direction (or Z-axis direction) of the first lens 110.

[0202] The first reflecting member 411 and the fourth reflecting member 414 may be disposed symmetrically with respect to the center of the first lens 110 in the height direction (or the Y-axis direction) of the first lens 110, in which case the first angle θ1 and the third angle θ3 may be substantially the same. Similarly, the second reflecting member 412 and the third reflecting member 413 may be disposed symmetrically with respect to the center of the first lens 110 in the width direction (or the X-axis direction) of the first lens 110, in which case the second angle θ2 and the fourth angle θ4 may be substantially the same.

[0203] The second lens 120 and the second display device 220 can be respectively Fig.11 and Fig.12The first lens 110 and the first display device 210 are implemented in substantially the same manner as described above, and thus, repeated descriptions thereof will be omitted.

[0204] Fig.13 According to an exemplary embodiment Fig.11 An expanded view of a first display device.

[0205] Reference Fig.13 , the first display panel 211 of the first display device 210 may include a first display area DA1, a second display area DA2, a third display area DA3, a fourth display area DA4, a first bending area BA1, a second bending area BA2, and a pad area PA. In addition, the first display device 210 may include a first scan driving circuit unit SDC1, a second scan driving circuit unit SDC2, a third scan driving circuit unit SDC3, a fourth scan driving circuit unit SDC4, and a first integrated driving circuit unit DDC1.

[0206] The first display area DA1 may include a first data line DL1, a first scan line SL1, and a first pixel PX1. The first data line DL1 may be arranged in a first direction DR1, and the first scan line SL1 may be arranged in a second direction DR2 intersecting the first direction DR1. The first pixel PX1 may be arranged in an area defined by the first data line DL1 and the first scan line SL1. For example, the first pixel PX1 may be arranged at an intersection between the first data line DL1 and the first scan line SL1.

[0207] The second display area DA2 may include a second data line DL2, a second scan line SL2, and a second pixel PX2. The second data line DL2 may be arranged in the first direction DR1, and the second scan line SL2 may be arranged in the second direction DR2. The second pixel PX2 may be arranged in an area defined by the second data line DL2 and the second scan line SL2. For example, the second pixel PX2 may be arranged at an intersection between the second data line DL2 and the second scan line SL2.

[0208] The third display area DA3 may include a third data line DL3, a third scan line SL3, and a third pixel PX3. The third data line DL3 may be arranged in the first direction DR1, and the third scan line SL3 may be arranged in the second direction DR2. The third pixel PX3 may be arranged in an area defined by the third data line DL3 and the third scan line SL3. For example, the third pixel PX3 may be arranged at an intersection between the third data line DL3 and the third scan line SL3.

[0209] The fourth display area DA4 may include a fourth data line DL4, a fourth scan line SL4, and a fourth pixel PX4. The fourth data line DL4 may be arranged in the first direction DR1, and the fourth scan line SL4 may be arranged in the second direction DR2. The fourth pixel PX4 may be arranged in an area defined by the fourth data line DL4 and the fourth scan line SL4. For example, the fourth pixel PX4 may be arranged at an intersection between the fourth data line DL4 and the fourth scan line SL4.

[0210] like Fig.12 As shown in , the length of the first lens 110 in the width direction (or X-axis direction) is greater than the length of the first lens 110 in the height direction (or Y-axis direction). As such, the lengths of the first display area DA1 and the fourth display area DA4 respectively disposed on the upper side and the lower side of the first lens 110 in the first direction DR1 may be greater than the lengths of the second display area DA2 and the third display area DA3 respectively disposed on the right side and the left side of the first lens 110 in the first direction DR1. In addition, as Fig.12 As shown in , when the length of the first lens 110 in the thickness direction (or Z-axis direction) is uniform on all sides of the first lens 110, the lengths of the first display area DA1, the second display area DA2, the third display area DA3 and the fourth display area DA4 in the second direction DR2 may be substantially the same as each other.

[0211] The first bending area BA1 may be disposed between the first display area DA1 and the third display area DA3. The first bending area BA1 may include a first data link line DCL1 connecting the first data line DL1 and the third data line DL3. The first bending area BA1 may include a first carry signal line CRL1 connecting the first scan driving circuit unit SDC1 and the third scan driving circuit unit SDC3. Pixels may not be formed in the first bending area BA1.

[0212] The second bending area BA2 may be disposed between the second display area DA2 and the fourth display area DA4. The second bending area BA2 may include a second data link line DCL2 connecting the second data line DL2 and the fourth data line DL4. The second bending area BA2 may include a second carry signal line CRL2 connecting the second scan driving circuit unit SDC2 and the fourth scan driving circuit unit SDC4. Pixels may not be formed in the second bending area BA2.

[0213] The pad area PA may be disposed between the first display area DA1 and the second display area DA2. The pad area PA may include a wiring line connected to the first integrated driving circuit unit DDC1 and the pad DP. The pad DP may be electrically connected to the circuit board 212. The circuit board 212 may be attached to the pad DP via, for example, an anisotropic conductive film.

[0214] The first display panel 211 may be formed to be thinner in the first and second bending areas BA1 and BA2 and in the pad area PA than in the first, second, third, and fourth display areas DA1, DA2, DA3, and DA4 to reduce bending stress. For example, some inorganic and organic films formed in the first, second, third, and fourth display areas DA1, DA2, DA3, and DA4 may not be formed in the first and second bending areas BA1 and BA2 and in the pad area PA.

[0215] The first scan driving circuit unit SDC1 may be disposed on a first side of the first display area DA1. The first scan driving circuit unit SDC1 may be disposed adjacent to a long side of the first display area DA1. The first scan driving circuit unit SDC1 is connected to the first scan line SL1 of the first display area DA1. The first scan driving circuit unit SDC1 may receive a first scan control signal from the first integrated driving circuit unit DDC1, may generate a first scan signal according to the received first scan control signal, and may sequentially apply the first scan signal to the first scan line SL1.

[0216] The second scan driving circuit unit SDC2 may be disposed on a first side of the second display area DA2. The second scan driving circuit unit SDC2 may be disposed adjacent to a long side of the second display area DA2. The second scan driving circuit unit SDC2 is connected to the second scan line SL2 of the second display area DA2. The second scan driving circuit unit SDC2 may receive a second scan control signal from the first integrated driving circuit unit DDC1, may generate a second scan signal according to the received second scan control signal, and may sequentially apply the second scan signal to the second scan line SL2.

[0217] The third scan driving circuit unit SDC3 may be disposed on a first side of the third display area DA3. The third scan driving circuit unit SDC3 may be disposed adjacent to a long side of the third display area DA3. The third scan driving circuit unit SDC3 is connected to the third scan line SL3 of the third display area DA3. The third scan driving circuit unit SDC3 may receive a first carry signal from the first scan driving circuit unit SDC1 via the first carry signal line CRL1, may generate a third scan signal according to the first carry signal, and may sequentially apply the third scan signal to the third scan line SL3. The third scan driving circuit unit SDC3 may output the last scan signal output from the first scan driving circuit unit SDC1 as a carry signal.

[0218] The fourth scan driving circuit unit SDC4 may be disposed on a first side of the fourth display area DA4. The fourth scan driving circuit unit SDC4 may be disposed adjacent to a long side of the fourth display area DA4. The fourth scan driving circuit unit SDC4 may receive a second carry signal from the second scan driving circuit unit SDC2 via a second carry signal line CRL2, may generate a fourth scan signal according to the second carry signal, and may sequentially apply the fourth scan signal to the fourth scan line SL4. The fourth scan driving circuit unit SDC4 may output the last scan signal output from the second scan driving circuit unit SDC2 as a carry signal.

[0219] Each of the first scan driving circuit unit SDC1, the second scan driving circuit unit SDC2, the third scan driving circuit unit SDC3, and the fourth scan driving circuit unit SDC4 may include a TFT as a switching element. In this case, the TFT of each of the first scan driving circuit unit SDC1, the second scan driving circuit unit SDC2, the third scan driving circuit unit SDC3, and the fourth scan driving circuit unit SDC4 may be formed together with the TFT of the first pixel PX1 of the first display area DA1, the TFT of the second pixel PX2 of the second display area DA2, the TFT of the third pixel PX3 of the third display area DA3, and the TFT of the fourth pixel PX4 of the fourth display area DA4.

[0220] The first integrated driving circuit unit DDC1 may be disposed in the pad area PA. The first integrated driving circuit unit DDC1 may extend in the second direction DR2. The first integrated driving circuit unit DDC1 receives a timing signal, first video data, second video data, third video data, and fourth video data via a wiring line. The first integrated driving circuit unit DDC1 may generate a scan control signal from the timing signal, and output the generated scan control signal to the first scan driving circuit unit SDC1 and the second scan driving circuit unit SDC2.

[0221] The first integrated driving circuit unit DDC1 may generate a data control signal from a timing signal. The first integrated driving circuit unit DDC1 may generate a first data voltage according to the data control signal and the first video data while the first scanning signal is applied, and may apply the first data voltage to the first data line DL1, the first data link line DCL1, and the third data line DL3. The first integrated driving circuit unit DDC1 may generate a second data voltage according to the data control signal and the second video data while the second scanning signal is applied, and may apply the second data voltage to the second data line DL2, the second data link line DCL2, and the fourth data line DL4.

[0222] In addition, the first integrated driving circuit unit DDC1 may generate a third data voltage according to the data control signal and the third video data while the third scan signal is applied, and may apply the third data voltage to the first data line DL1, the first data link line DCL1, and the third data line DL3. The first integrated driving circuit unit DDC1 may generate a fourth data voltage according to the data control signal and the fourth video data while the fourth scan signal is applied, and may apply the fourth data voltage to the second data line DL2, the second data link line DCL2, and the fourth data line DL4.

[0223] The first integrated driving circuit unit DDC1 may be formed as an IC.

[0224] According to the shown Fig.13 In an exemplary embodiment, since the first display device 210 includes a plurality of bending areas (i.e., a first bending area BA1 and a second bending area BA2) that can be bent, the first display device 210 can be easily bent along a boundary between an upper side and a left side of the first lens 110 and a boundary between a lower side and a right side of the first lens 110.

[0225] In addition, according to the shown Fig.13 In an exemplary embodiment, each of the first pixel PX1 of the first display area DA1, the second pixel PX2 of the second display area DA2, the third pixel PX3 of the third display area DA3, and the fourth pixel PX4 of the fourth display area DA4 can receive a data voltage from a single integrated driving circuit unit (e.g., the first integrated driving circuit unit DDC1).

[0226] Fig.13 It is shown that a single integrated driving circuit unit is disposed in the pad area PA, but the inventive concept is not limited thereto. For example, in some exemplary embodiments, two integrated driving circuit units may be disposed in the pad area PA, in which case one of the two integrated driving circuit units may be connected to the first data line DL1, the first data link line DCL1, and the third data line DL3, and the other integrated driving circuit unit may be connected to the second data line DL2, the second data link line DCL2, and the fourth data line DL4.

[0227] In addition, the integrated driving circuit unit may be additionally disposed in the first bending area BA1 and the second bending area BA2. In this case, the first data link line DCL1 may not be formed in the first bending area BA1, and the second data link line DCL2 may not be formed in the second bending area BA2. The integrated driving circuit unit disposed in the first bending area BA1 may be connected to the third data line DL3, and the integrated driving circuit unit disposed in the second bending area BA2 may be connected to the fourth data line DL4. Figure 8 The third integrated driving circuit unit DDC3 is substantially the same as that of the first integrated driving circuit unit DDC3, and thus a repeated description thereof will be omitted. In addition, the integrated driving circuit unit disposed in the second bending area BA2 may be the same as that of the first integrated driving circuit unit DDC3. Figure 8 The fourth integrated driving circuit unit DDC4 is substantially the same as that of FIG. 1 , and thus repeated description thereof will be omitted.

[0228] The second display device 220 may be similar to the above reference Fig.13 The first display device 210 described above is implemented in substantially the same manner, and thus, a repeated description thereof will be omitted.

[0229] Fig.14 It is shown exemplarily Fig.11 Flow chart of a driving method of a first display device.

[0230] Reference Fig.14 In S301, during a first period, the first scan driving circuit unit SDC1 sequentially applies a first scan signal to the first scan line SL1, and the first integrated driving circuit unit DDC1 applies a first data voltage to the first data line DL1, the first data link line DCL1, and the third data line DL3. Therefore, the first pixel PX1 of the first display area DA1 may display a first image according to the first data voltage. The first image in the first display area DA1 may be reflected by the first reflective member 411 to be provided to the right eye RE of the user.

[0231] In S302, during the first period, the second scan driving circuit unit SDC2 sequentially applies the second scan signal to the second scan line SL2, and the first integrated driving circuit unit DDC1 applies the second data voltage to the second data line DL2, the second data link line DCL2, and the fourth data line DL4. Therefore, the second pixel PX2 of the second display area DA2 can display the second image according to the second data voltage. The second image in the second display area DA2 can be reflected by the second reflective member 412 to be provided to the right eye RE of the user.

[0232] In S303, during the second period, the third scan driving circuit unit SDC3 sequentially applies the third scan signal to the third scan line SL3, and the first integrated driving circuit unit DDC1 applies the third data voltage to the first data line DL1, the first data link line DCL1, and the third data line DL3. Therefore, the third pixel PX3 of the third display area DA3 can display the third image according to the third data voltage. The third image in the third display area DA3 can be reflected by the third reflective member 413 to be provided to the right eye RE of the user.

[0233] In S304, during the second period, the fourth scan driving circuit unit SDC4 sequentially applies the fourth scan signal to the fourth scan line SL4, and the first integrated driving circuit unit DDC1 applies the fourth data voltage to the second data line DL2, the second data link line DCL2, and the fourth data line DL4. Therefore, the fourth pixel PX4 of the fourth display area DA4 can display the fourth image according to the fourth data voltage. The fourth image in the fourth display area DA4 can be reflected by the fourth reflective member 414 to be provided to the right eye RE of the user.

[0234] According to the shown Fig.14 In the exemplary embodiment, the first image, the second image, the third image, and the fourth image of the first display area DA1, the second display area DA2, the third display area DA3, and the fourth display area DA4 may be provided to the user's right eye RE. Therefore, since the user can view four virtual images and one real-world image, the area of ​​the first display device 210 that the user is actually viewing, that is, the user's FOV, may be expanded.

[0235] The driving method of the second display device 220 is the same as that of the above reference Fig.14 The driving methods described are basically the same, and therefore, repeated descriptions thereof will be omitted.

[0236] Fig.15 According to another exemplary embodiment Fig.11 An expanded view of a first display device.

[0237] Fig.15 The first display device and Fig.13 The first display device of the present invention is different in that the first integrated driving circuit unit DDC1 is disposed on a first side of the first display area DA1, the second integrated driving circuit unit DDC2 is disposed on a first side of the second display area DA2, the third integrated driving circuit unit DDC3 is disposed on a first side of the third display area DA3, the fourth integrated driving circuit unit DDC4 is disposed on a first side of the fourth display area DA4, and the first scanning driving circuit unit SDC1 is disposed in the pad area PA. In the following, the focus will be mainly on Figure 5 and Fig.13 The difference of the first display device is described according to the shown Fig.15 A first display device of an exemplary embodiment of the present invention.

[0238] Reference Fig.15 , the first scan driving circuit unit SDC1 may be disposed in the pad area PA. The first scan driving circuit unit SDC1 may extend in the second direction DR2. The first scan driving circuit unit SDC1 may be connected to the first scan line SL1 of the first display area DA1, the third scan line SL3 of the third display area DA3, and the first scan connection line SCL1 connecting the first scan line SL1 and the third scan line SL3. In addition, the first scan driving circuit unit SDC1 may be connected to the second scan line SL2 of the second display area DA2, the fourth scan line SL4 of the fourth display area DA4, and the second scan connection line SCL2 connecting the second scan line SL2 and the fourth scan line SL4.

[0239] The first scan driving circuit unit SDC1 may receive a scan control signal from the first integrated driving circuit unit DDC1 and may generate a scan signal according to the scan control signal. The first scan driving circuit unit SDC1 may sequentially apply a scan signal to the first scan line SL1, the first scan connection line SCL1, and the third scan line SL3, and at the same time, may sequentially apply a scan signal to the second scan line SL2, the second scan connection line SCL2, and the fourth scan line SL4.

[0240] The first integrated driving circuit unit DDC1 may be disposed on a first side of the first display area DA1. The first integrated driving circuit unit DDC1 may be disposed adjacent to a long side of the first display area DA1. The first integrated driving circuit unit DDC1 receives a first timing signal and first video data via a wiring line connected to the pad DP. The first integrated driving circuit unit DDC1 may generate a scan control signal from the first timing signal, and may output the scan control signal to the first scan driving circuit unit SDC1. The first integrated driving circuit unit DDC1 may generate a first data control signal from the first timing signal. The first integrated driving circuit unit DDC1 may generate a first data voltage according to the first data control signal and the first video data while the scan signal is applied, and may apply the first data voltage to the first data line DL1.

[0241] The second integrated driving circuit unit DDC2 may be disposed on a first side of the second display area DA2. The second integrated driving circuit unit DDC2 may be disposed adjacent to a long side of the second display area DA2. The second integrated driving circuit unit DDC2 receives a first timing signal and a second video data via a wiring line connected to the pad DP. The second integrated driving circuit unit DDC2 may generate a second data control signal from the first timing signal. The second integrated driving circuit unit DDC2 may generate a second data voltage according to the second data control signal and the second video data while a scan signal is applied, and may apply the second data voltage to the second data line DL2.

[0242] The third integrated driving circuit unit DDC3 may be disposed on a first side of the third display area DA3. The third integrated driving circuit unit DDC3 may be disposed adjacent to a long side of the third display area DA3. The third integrated driving circuit unit DDC3 receives the first timing signal and the third video data via a wiring line connected to the pad DP. The third integrated driving circuit unit DDC3 may generate a third data control signal from the first timing signal. The third integrated driving circuit unit DDC3 may generate a third data voltage according to the third data control signal and the third video data while the scan signal is applied, and may apply the third data voltage to the third data line DL3.

[0243] The fourth integrated driving circuit unit DDC4 may be disposed on a first side of the fourth display area DA4. The fourth integrated driving circuit unit DDC4 may be disposed adjacent to a long side of the fourth display area DA4. The fourth integrated driving circuit unit DDC4 receives the first timing signal and the fourth video data via a wiring line connected to the pad DP. The fourth integrated driving circuit unit DDC4 may generate a fourth data control signal from the first timing signal. The fourth integrated driving circuit unit DDC4 may generate a fourth data voltage according to the fourth data control signal and the fourth video data while the scan signal is applied, and may apply the fourth data voltage to the fourth data line DL4.

[0244] The first scan driving circuit unit SDC1 sequentially applies scan signals to the first scan line SL1 and the third scan line SL3, the first integrated driving circuit unit DDC1 applies the first data voltage to the first data line DL1, and the third integrated driving circuit unit DDC3 applies the third data voltage to the third data line DL3. Therefore, the first pixel PX1 of the first display area DA1 can display the first image according to the first data voltage, and the third pixel PX3 of the third display area DA3 can display the third image according to the third data voltage. The first image in the first display area DA1 can be reflected by the first reflective member 411 to be provided to the right eye RE of the user, and the third image in the third display area DA3 can be reflected by the third reflective member 413 to be provided to the right eye RE of the user.

[0245] In addition, the first scan driving circuit unit SDC1 sequentially applies the scan signal to the second scan line SL2 and the fourth scan line SL4, the second integrated driving circuit unit DDC2 applies the second data voltage to the second data line DL2, and the fourth integrated driving circuit unit DDC4 applies the fourth data voltage to the fourth data line DL4. Therefore, the second pixel PX2 of the second display area DA2 can display the second image according to the second data voltage, and the fourth pixel PX4 of the fourth display area DA4 can display the fourth image according to the fourth data voltage. The second image in the second display area DA2 can be reflected by the second reflective member 412 to be provided to the right eye RE of the user, and the fourth image in the fourth display area DA4 can be reflected by the fourth reflective member 414 to be provided to the right eye RE of the user.

[0246] According to the shown Fig.15 An exemplary embodiment of Fig.13 Compared with the case where the first integrated driving circuit unit DDC1 shown in FIG. 1 applies the third data voltage to the first data line DL1, the first data link line DCL1 and the third data line DL3, since the transmission length of the third data voltage can be reduced, the influence of the wiring resistance on the third data voltage can be reduced. Fig.13 Compared with the case where the first integrated driving circuit unit DDC1 shown in FIG. 1 applies the fourth data voltage to the second data line DL2 , the second data link line DCL2 , and the fourth data line DL4 , since the transmission length of the fourth data voltage can be reduced, the influence of the wiring resistance on the fourth data voltage can be reduced.

[0247] In addition, the scan driving circuit unit may be additionally arranged in the first bending area BA1 and the second bending area BA2. In this case, the first scan connection line SCL1 may not be formed in the first bending area BA1, and the second scan connection line SCL2 may not be formed in the second bending area BA2. The scan driving circuit unit arranged in the first bending area BA1 may be connected to the third scan line SL3, and the scan driving circuit unit arranged in the second bending area BA2 may be connected to the fourth scan line SL4. In this case, the first scan driving circuit unit SDC1 may output the first scan signal to the first scan line SL1, the second scan driving circuit unit SDC2 may output the second scan signal to the second scan line SL2, the third scan driving circuit unit SDC3 may output the third scan signal to the third scan line SL3, and the fourth scan driving circuit unit SDC4 may output the fourth scan signal to the fourth scan line SL4.

[0248] The second display device 220 may be similar to the above reference Fig.15 The first display device 210 described above is implemented in substantially the same manner, and thus, a repeated description thereof will be omitted.

[0249] Fig.16 is an exploded perspective view of an optical device according to another exemplary embodiment. Fig.17 It is shown Fig.16 A perspective view of a first lens, a second lens and a first display device. Figure 2 and Figure 3 The differences in the optical devices are described Fig.16 and Fig.17 optical device.

[0250] Reference Fig.16 and Fig.17 , the first display panel 211 of the first display device is disposed on at least one side of the first lens 110 and on at least one side of the second lens 120. The first display panel 211 may include a first display area DA1 disposed on a first side of the first lens 110 and a second display area DA2 disposed on a first side of the second lens 120. The first side of the first lens 110 and the first side of the second lens 120 may be an upper side of the first lens 110 and an upper side of the second lens 120, without being limited thereto.

[0251] The first display panel 211 may include a first bending area BA1 bendable or foldable between the first display area DA1 and the second display area DA2. The first display area DA1 and the second display area DA2 may be connected through the first bending area BA1.

[0252] The first reflective member 411 may be Figure 4AThe first reflective member 411 is tilted at a first angle θ1 to reflect the first image from the first display area DA1, thereby providing the first image to the user's right eye RE. The second reflective member 412 may also be tilted at the first angle θ1 to reflect the second image from the second display area DA2, thereby providing the second image to the user's left eye LE. Figure 4A and Figure 4B As shown in , the first angle θ1 refers to an angle at which the first reflecting member 411 and the second reflecting member 412 are inclined in the height direction (or Y-axis direction) of the first lens 110 relative to the thickness direction (or Z-axis direction) of the first lens 110 .

[0253] Fig.16 and Fig.17 It is shown that a single reflective member (i.e., the first reflective member 411) is disposed in the first lens 110, and a single reflective member (i.e., the second reflective member 412) is disposed in the second lens 120, but the inventive concept is not limited to a specific number of reflective members disposed in each of the first lens 110 and the second lens 120.

[0254] The first display panel 211 may further include a third display area extending from the first display area DA1 and disposed on the left side of the first lens 110. In this case, the second bending area may be disposed between the first display area DA1 and the third display area. The second bending area may be bent at a boundary between the upper side and the left side of the first lens 110.

[0255] In addition, the first display panel 211 may further include a fourth display area extending from the second display area DA2 and disposed on the right side of the second lens 120. In this case, the third bending area may be disposed between the second display area DA2 and the fourth display area. The third bending area may be bent at a boundary between the upper side and the right side of the second lens 120.

[0256] According to the shown Fig.16 and Fig.17 In the exemplary embodiment of the present invention, a first image displayed in a first display area DA1 of the first display device 210 disposed on a first side of the first lens 110 may be reflected toward a first surface of the first lens 110 by a first reflective member 411. In addition, a second image displayed in a second display area DA2 of the first display device 210 disposed on a first side of the second lens 120 may be reflected toward a first surface of the second lens 120 by a second reflective member 412. Therefore, by using a single display device, a virtual image may be provided to both the left eye LE and the right eye RE of a user.

[0257] Fig.18 According to an exemplary embodiment Fig.16An expanded view of a first display device.

[0258] Reference Fig.18 The first display panel 211 of the first display device 210 may include a first display area DA1, a second display area DA2, a first bending area BA1, and a pad area PA. In addition, the first display device 210 may include a first scan driving circuit unit SDC1, a second scan driving circuit unit SDC2, and a first integrated driving circuit unit DDC1.

[0259] The first display area DA1 may include a first data line DL1, a first scan line SL1, and a first pixel PX1. The first data line DL1 may be arranged in a first direction DR1, and the first scan line SL1 may be arranged in a second direction DR2 intersecting the first direction DR1. The first pixel PX1 may be arranged in an area defined by the first data line DL1 and the first scan line SL1. For example, the first pixel PX1 may be arranged at an intersection between the first data line DL1 and the first scan line SL1.

[0260] The second display area DA2 may include a second data line DL2, a second scan line SL2, and a second pixel PX2. The second data line DL2 may be arranged in the first direction DR1, and the second scan line SL2 may be arranged in the second direction DR2. The second pixel PX2 may be arranged in an area defined by the second data line DL2 and the second scan line SL2. For example, the second pixel PX2 may be arranged at an intersection between the second data line DL2 and the second scan line SL2.

[0261] Since the length of the first lens 110 in the width direction (or the X-axis direction) is substantially the same as the length of the second lens 120 in the width direction (or the X-axis direction), Fig.18 As shown in , the length of the first display area DA1 disposed on the upper side of the first lens 110 in the first direction DR1 may be substantially the same as the length of the second display area DA2 disposed on the upper side of the second lens 120 in the first direction DR1. In addition, when the length of the first lens 110 in the thickness direction (or the Z-axis direction) is uniform on each side of the first lens 110 and the length of the second lens 120 in the thickness direction (or the Z-axis direction) is uniform on each side of the second lens 120, as shown in Fig.18 As shown in FIG. 1 , a length of the first display area DA1 in the second direction DR2 and a length of the second display area DA2 in the second direction DR2 may be substantially the same.

[0262] The first bending area BA1 may be disposed between the first display area DA1 and the second display area DA2. The first bending area BA1 may include a first data link line DCL1 connecting the first data line DL1 and the second data line DL2. The first bending area BA1 may include a first carry signal line CRL1 connecting the first scan driving circuit unit SDC1 and the second scan driving circuit unit SDC2. Pixels may not be formed in the first bending area BA1.

[0263] The pad area PA includes a wiring line RL connected to the first integrated driving circuit unit DDC1 and a pad DP connected to the wiring line RL. The pad DP may be electrically connected to the circuit board 212. The circuit board 212 may be attached to the pad DP via, for example, an anisotropic conductive film.

[0264] The first display panel 211 may be formed to be thinner in the first bending area BA1 than in the first and second display areas DA1 and DA2 to reduce bending stress. For example, some inorganic and organic films formed in the first and second display areas DA1 and DA2 may not be formed in the first bending area BA1.

[0265] The first scan driving circuit unit SDC1 may be disposed on a first side of the first display area DA1. The first scan driving circuit unit SDC1 may be disposed adjacent to a long side of the first display area DA1. The first scan driving circuit unit SDC1 is connected to a first scan line SL1 of the first display area DA1. The first scan driving circuit unit SDC1 may receive a first carry signal from the second scan driving circuit unit SDC2 via a first carry signal line CRL1. The first scan driving circuit unit SDC1 may generate a first scan signal according to the first carry signal, and may sequentially apply the first scan signal to the first scan line SL1.

[0266] The second scan driving circuit unit SDC2 may be disposed on a first side of the second display area DA2. The second scan driving circuit unit SDC2 may be disposed adjacent to a long side of the second display area DA2. The second scan driving circuit unit SDC2 is connected to the second scan line SL2 of the second display area DA2. The second scan driving circuit unit SDC2 may receive a scan control signal from the first integrated driving circuit unit DDC1, may generate a second scan signal according to the scan control signal, and may sequentially apply the second scan signal to the second scan line SL2.

[0267] Each of the first scan driving circuit unit SDC1 and the second scan driving circuit unit SDC2 may include a TFT as a switching element. In this case, the TFT of each of the first scan driving circuit unit SDC1 and the second scan driving circuit unit SDC2 may be formed together with the TFT of the first pixel PX1 of the first display area DA1 and the TFT of the second pixel PX2 of the second display area DA2.

[0268] The first integrated driving circuit unit DDC1 may be disposed in the pad area PA. The first integrated driving circuit unit DDC1 may extend in the second direction DR2. The first integrated driving circuit unit DDC1 may receive a timing signal, first video data, and second video data via a wiring line RL. The first integrated driving circuit unit DDC1 may generate a scan control signal from the timing signal, and may output the scan control signal to the second scan driving circuit unit SDC2. The first integrated driving circuit unit DDC1 may be formed as an IC.

[0269] The first integrated driving circuit unit DDC1 may generate a data control signal from a timing signal. The first integrated driving circuit unit DDC1 may generate a second data voltage according to the data control signal and the second video data while the second scanning signal is applied, and may apply the second data voltage to the first data line DL1, the first data link line DCL1, and the second data line DL2. The first integrated driving circuit unit DDC1 may generate a first data voltage according to the data control signal and the first video data while the first scanning signal is applied, and may apply the first data voltage to the first data line DL1, the first data link line DCL1, and the second data line DL2.

[0270] According to the shown Fig.18 According to the exemplary embodiment, since the first display device 210 includes the first bending area BA1 that may be bent, a virtual image may be provided to the first side of the first lens 110 and the first side of the second lens 120 by using a single display device.

[0271] In addition, according to the shown Fig.18 According to an exemplary embodiment, data voltages may be provided to the first pixel PX1 of the first display area DA1 and the second pixel PX2 of the second display area DA2 through a single integrated driving circuit unit (ie, the first integrated driving circuit unit DDC1).

[0272] In addition, the integrated drive circuit unit can be Figure 8In this case, the first data link line DCL1 may not be formed in the first bending area BA1. The integrated driving circuit unit disposed in the first bending area BA1 may be connected to the first data line DL1. The integrated driving circuit unit disposed in the first bending area BA1 may be connected to the first data line DL1. Figure 8 The third integrated driving circuit unit DDC3 is substantially the same as that of FIG. 1 , and thus, a repeated description thereof will be omitted.

[0273] The second display device 220 may be similar to the above reference Fig.18 The first display device 210 described above is implemented in substantially the same manner, and thus, a repeated detailed description thereof will be omitted.

[0274] Fig.19 It is shown exemplarily Fig.16 Flow chart of a driving method of a first display device.

[0275] Reference Fig.19 In S401, during the first period, the second scan driving circuit unit SDC2 sequentially applies the second scan signal to the second scan line SL2, and the first integrated driving circuit unit DDC1 applies the second data voltage to the first data line DL1, the first data link line DCL1, and the second data line DL2. Therefore, the second pixel PX2 of the second display area DA2 can display the second image according to the second data voltage. The second image in the second display area DA2 can be reflected by the second reflective member 412 to be provided to the left eye LE of the user.

[0276] In S402, during the second period, the first scan driving circuit unit SDC1 sequentially applies the first scan signal to the first scan line SL1, and the first integrated driving circuit unit DDC1 applies the first data voltage to the first data line DL1, the first data link line DCL1, and the second data line DL2. Therefore, the first pixel PX1 of the first display area DA1 can display the first image according to the first data voltage. The first image in the first display area DA1 can be reflected by the first reflective member 411 to be provided to the right eye RE of the user.

[0277] The driving method of the second display device 220 is the same as that of the above reference Fig.19 The driving methods described are basically the same, and therefore, repeated descriptions thereof will be omitted.

[0278] According to an exemplary embodiment, by using a plurality of reflective members, images from display devices disposed on a plurality of sides of the lens are reflected toward the first surface of the lens. In this way, the user can view a plurality of virtual images as well as a real-world image, and thus, the area of ​​the display device that the user is actually viewing, that is, the user's FOV, can be expanded.

[0279] In addition, since the display device includes a curved area that can be bent, a virtual image can be provided to the first side of the first lens and the first side of the second lens. The virtual image provided to the first side of the first lens can be input to the right eye of the user through the first reflective member of the first lens. The virtual image provided to the first side of the second lens can be input to the left eye of the user through the first reflective member of the second lens. Therefore, the virtual image can be provided to the left eye and the right eye of the user by using a single display device.

[0280] Although certain exemplary embodiments and implementations have been described herein, other embodiments and modifications will be apparent from this description. Therefore, the inventive concept is not limited to such embodiments, but is limited to the broader scope of the appended claims and various obvious modifications and equivalent arrangements as will be apparent to those of ordinary skill in the art.

Claims

1. A flexible display device, comprising: A first display area includes first data lines arranged in a first direction, first scan lines arranged in a second direction intersecting the first direction, and first pixels arranged in an area defined by the first data lines and the first scan lines; a second display area including second data lines arranged in the first direction, second scan lines arranged in the second direction, and second pixels arranged in an area defined by the second data lines and the second scan lines; A first curved area, arranged between the first display area and the second display area; A first circuit unit, arranged adjacent to a first side of the first display area; a second circuit unit, arranged adjacent to a second side of the first display area; a third circuit unit, arranged adjacent to the first side of the second display area; as well as The fourth circuit unit is arranged in the first bending area, wherein: The first circuit unit is configured to apply a first scan signal to the first scan line of the first display area; The second circuit unit is configured to apply a first data voltage to the first data line of the first display area; The third circuit unit is configured to apply a second scan signal to the second scan line of the second display area; and The fourth circuit unit is configured to apply a second data voltage to the second data line of the second display area.

2. The flexible display device according to claim 1, wherein: The first circuit unit is further configured to apply the first scan signal to the first scan line during a first period; and The third circuit unit is further configured to apply the second scan signal to the second scan line during a second period.

3. The flexible display device according to claim 1, further comprising: A carry signal line is disposed in the first bending region and connected to the first circuit unit and the third circuit unit.

4. The flexible display device according to claim 3, wherein: The first circuit unit is configured to apply a last scan signal as a carry signal to one of the carry signal lines.

5. The flexible display device according to claim 1, further comprising: a pad region including a first wiring line connected to the second circuit unit and a pad connected to the first wiring line; as well as A flexible circuit board, attached to the pad, Wherein, the second circuit unit is arranged between the pad area and the first display area.

6. The flexible display device according to claim 1, wherein: The second circuit unit is configured to apply the first data voltage to the first data line during a first period; and The fourth circuit unit is configured to apply the second data voltage to the second data line during a second period.

7. The flexible display device according to claim 1, further comprising a third display area, the third display area comprising a third data line arranged in the first direction, a third scan line arranged in the second direction, and a third pixel arranged in an area defined by the third data line and the third scan line, in, The first bending area is disposed between the third display area and the first display area.

Images