Display device

Abstract

The utility model relates to a display device. The display apparatus includes: at least one spatial light modulator that displays an augmented reality content image; a surface light source device disposed behind the at least one spatial light modulator and providing the image display light of the first resolution to the spatial light modulator as background light; and at least one image transmission member forming a display path of the augmented reality content image. The surface light source apparatus includes an organic light emitting display unit in which a plurality of sub-light emitting pixels performing surface light emission are arranged, and an emission driving circuit driving each of the sub-light emitting pixels of the organic light emitting display unit.

Description

Technical Field

[0001] The present disclosure relates to a display device. Background Art

[0002] Recently, with the development of electronic devices and display devices that can realize virtual reality ("VR"), as the next step of virtual reality, technologies that can realize extended reality content images such as augmented reality ("AR"), mixed reality ("MR"), and extended holographic images are also under research.

[0003] Unlike virtual reality, which is based on a completely virtual world, augmented reality is a display technology that further increases the effect of reality by superimposing virtual objects or image information on a real-world environment. Stereoscopic imaging technology using a holographic method or the like can fundamentally avoid fatigue that occurs in a conventional stereoscopic method in which binocular parallax is used to view a stereoscopic image. Therefore, stereoscopic imaging technology using a holographic method is attracting much attention as a next-generation stereoscopic imaging technology that should eventually be realized.

[0004] In the case of an augmented reality content image such as a holographic image, since the actual image formed is seen directly with the eyes instead of using an optical illusion, a three-dimensional ("3D") effect can be felt that is indistinguishable from seeing the real thing. Therefore, a holographic image has the advantage of not causing fatigue even if viewed for a long time.

[0005] The method of displaying an extended reality content image such as a hologram basically adopts a spatial light modulator, and the performance of the spatial light modulator serves as an important factor in determining the performance and three-dimensional effect. Recently, a liquid crystal display panel is used as a spatial light modulator, and therefore, the light emitting structure of a light emitting panel used as a background light source (such as a backlight) serves as an important factor in determining the display quality and field angle of the extended reality content image. Utility Model Content

[0006] Features of the present disclosure provide a display device that is capable of modulating the arrangement structure of a surface light-emitting structure and sub-light-emitting pixels in a surface light source device, which provides background light to a spatial light modulator and is capable of displaying extended reality content images such as holograms using an ultra-low resolution surface light source.

[0007] Features of the present disclosure also provide a display device that is capable of increasing the resolution and three-dimensional ("3D") effect of an extended reality content image such as a hologram by modulating the resolution of a surface light source device.

[0008] However, the features of the present disclosure are not limited to the features set forth herein. The above and other features of the present disclosure will become more apparent to those of ordinary skill in the art to which the present disclosure pertains by referring to the detailed description of the present disclosure given below.

[0009] In an embodiment of the present disclosure, a display device includes: at least one spatial light modulator that displays an extended reality content image; a surface light source device that is disposed behind the at least one spatial light modulator and provides the spatial light modulator with image display light of a first resolution as background light; and at least one image transmission member that forms a display path for the extended reality content image. The surface light source device includes an organic light emitting display unit, in which a plurality of sub-light emitting pixels that perform surface light emission are arranged, and an emission driving circuit that drives each of the sub-light emitting pixels of the organic light emitting display unit.

[0010] In an embodiment, the emission driving circuit generates a gate control signal and an analog image signal for driving a plurality of sub-luminescent pixels at the same timing in units of at least one frame, the gate control signal is provided to the first gate driver in units of at least one frame, and the analog image signal is provided to the plurality of sub-luminescent pixels simultaneously.

[0011] In an embodiment, the plurality of sub-light-emitting pixels include a plurality of pixel drivers that simultaneously receive gate control signals, and a light-emitting element that is connected in series with the plurality of pixel drivers to emit light through the driving of the plurality of pixel drivers. The plurality of pixel drivers receive the same gate control signals and the same analog image signals through the emission driving circuit and the first gate driver to cause the light-emitting element to emit light.

[0012] In an embodiment, each of the plurality of sub-light-emitting pixels includes a plurality of pixel drivers and light-emitting elements. Each of the light-emitting elements included in each of the plurality of sub-light-emitting pixels is formed in an organic light-emitting display surface of the surface light source device in at least any one of a fan-shaped shape, a triangular shape, a rhombus shape, a quadrilateral shape other than a rhombus shape, a circular shape, a semicircular shape, and an elliptical shape, or is formed in a combination of different shapes.

[0013] In an embodiment, the light emitting element included in each of the plurality of sub-pixels is arranged in a circular shape in a plan view by surrounding the center of a circular-shaped organic light emitting display unit, or is arranged in a quadrilateral shape in a plan view by surrounding the center of a quadrilateral-shaped organic light emitting display surface.

[0014] In an embodiment, a plurality of pixel drivers included in each of the plurality of sub-light-emitting pixels and the light-emitting element are connected in a series structure. A plurality of pixel drivers included in each of the plurality of sub-light-emitting pixels partially overlap each of the light-emitting elements and are arranged along at least one side direction of the light-emitting element. A plurality of pixel drivers included in each of the plurality of sub-light-emitting pixels are simultaneously provided with a gate control signal identical to each other and an analog image signal identical to each other to simultaneously drive each of the light-emitting elements.

[0015] In an embodiment, three sub-pixels among a plurality of sub-pixels that respectively display red light, green light, and blue light constitute each unit light-emitting pixel that emits white light, the unit light-emitting pixels are alternately and repeatedly arranged on an organic light-emitting display surface, and a combination of three sub-pixels that form a fan shape, a triangle shape, or a diamond shape in a plan view is arranged in each unit light-emitting pixel.

[0016] In an embodiment, the light-emitting element included in any one of the three sub-pixels of each unit light-emitting pixel is formed in a triangular shape, and the light-emitting elements included in the remaining two of the three sub-pixels are formed in a diamond shape, so that each unit light-emitting pixel including a combination of three sub-pixels is formed and arranged in a fan-shaped shape.

[0017] In an embodiment, three sub-light emitting pixels of each unit light emitting pixel are arranged in a circular shape in a plan view by surrounding the center of the organic light emitting display surface in a circular shape, and are formed to have the same planar area.

[0018] In an embodiment, the surface light source device also includes a first data processor, which extracts extended reality content image data of a first resolution from the extended reality content image data input from the outside, or converts the extended reality content image data input from the outside into extended reality content image data of the first resolution, and the emission driving circuit converts the extended reality content image data of the first resolution into an analog image signal, and provides the analog image signal to multiple sub-pixels of the organic light-emitting display unit.

[0019] In an embodiment, at least one spatial light modulator generates an augmented reality content image of a second resolution by using the image display light of the first resolution as background light, and at least one image transmission component defines a display path of an augmented reality content image of a third resolution in which the image display light of the first resolution is mixed with the augmented reality content image of the second resolution.

[0020] In an embodiment, the spatial light modulator includes: a liquid crystal image display unit, which displays an extended reality content image of a second resolution in a front surface direction by using an image display light of a first resolution provided from a surface light source device arranged behind the spatial light modulator as background light; a second data processor, which extracts extended reality content image data of the second resolution from the extended reality content image data input from the outside, or converts the extended reality content image data input from the outside into extended reality content image data of the second resolution; and a display driving circuit, which converts the extended reality content image data of the second resolution into an analog image signal, and provides the analog image signal to the liquid crystal pixels of the liquid crystal image display unit.

[0021] In an embodiment, the first resolution is a resolution set lower than the second resolution, and the third resolution is a mixed resolution of the first resolution and the second resolution.

[0022] In an embodiment, the surface light source device generates image display light of the first resolution as a surface light source by converting extended reality content image data input from the outside into extended reality content image data of the first resolution, converting the extended reality content image data of the first resolution into an analog image signal, and providing the analog image signal to multiple sub-pixels of an organic light-emitting display unit.

[0023] In an embodiment, the spatial light modulator converts the augmented reality content image data input from the outside into the augmented reality content image data of the second resolution, converts the augmented reality content image data of the second resolution into an analog image signal, and provides the analog image signal to the liquid crystal pixel of the liquid crystal image display unit, and generates the augmented reality content image of the second resolution by providing the image display light of the first resolution provided from the surface light source device disposed behind the spatial light modulator as the background light. At least one image transmission member forms a display path of the augmented reality content image of the third resolution in which the image display light of the first resolution is mixed with the augmented reality content image of the second resolution.

[0024] In an embodiment of the present disclosure, a display device includes: at least one spatial light modulator that displays an extended reality content image; a surface light source device that is disposed behind the at least one spatial light modulator and provides the spatial light modulator with an image display light of a first resolution as background light; and at least one image transmission member that forms a display path for the extended reality content image. The surface light source device includes an organic light-emitting display unit and an emission drive circuit, wherein a plurality of sub-light-emitting pixels that perform surface light emission are arranged in the organic light-emitting display unit, and the emission drive circuit drives the plurality of sub-light-emitting pixels of the organic light-emitting display unit. The plurality of sub-light-emitting pixels include a plurality of pixel drivers and a light-emitting element. The light-emitting element included in each of the plurality of sub-light-emitting pixels is formed in the organic light-emitting display surface of the surface light source device in at least any one of a fan-shaped shape, a triangular shape, a diamond shape, a quadrilateral shape other than a diamond shape, a circular shape, a semicircular shape, and an elliptical shape, or is formed in a combination of different shapes.

[0025] In an embodiment, the emission driving circuit generates a gate control signal and an analog image signal for driving the plurality of sub-emission pixels at the same timing in units of at least one frame, the gate control signal is provided to the first gate driver in units of at least one frame, and the analog image signal is provided to the plurality of sub-emission pixels simultaneously.

[0026] In an embodiment, a plurality of pixel drivers simultaneously receive gate control signals, a plurality of sub-luminescent pixels further include light-emitting elements connected in series with the plurality of pixel drivers to emit light through the driving of the plurality of pixel drivers, and the plurality of pixel drivers receive the same gate control signals and the same analog image signals as each other through the emission driving circuit and the first gate driver so that the light-emitting elements emit light.

[0027] In an embodiment, the light emitting element included in each of the plurality of sub-pixels is arranged in a circular shape in a plan view by surrounding the center of a circular organic light emitting display surface, or is arranged in a quadrilateral shape in a plan view by surrounding the center of a quadrilateral organic light emitting display surface.

[0028] In an embodiment, three sub-pixels among a plurality of sub-pixels that respectively display red light, green light, and blue light constitute each unit light-emitting pixel that emits white light, the unit light-emitting pixels are alternately and repeatedly arranged on an organic light-emitting display surface, and a combination of three sub-pixels that form a fan shape, a triangle shape, or a diamond shape in a plan view is arranged in each unit light-emitting pixel.

[0029] In the display device according to the present disclosure, the light-emitting pixel arrangement structure and the surface light-emitting structure of the surface light source device are simplified, so that ultra-low resolution background light can be provided to the spatial light modulator. Therefore, it is possible to improve the efficiency of manufacturing a display device that displays an extended reality content image such as a hologram.

[0030] Furthermore, in the display device according to the present disclosure, the resolution and 3D effect of an extended reality content image such as a hologram may be further improved by modulating the resolution of the surface light source device.

[0031] However, the effects of the present disclosure are not limited to the effects set forth herein. The above and other effects of the present disclosure will become more apparent to those of ordinary skill in the art to which the present disclosure belongs by referring to the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] These features and / or other features will become more apparent and easier to understand through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0033] Figure 1 An embodiment of using a projector-type extended reality content image display device according to the present disclosure is shown;

[0034] Figure 2 An embodiment of using a glasses-type extended reality content image display device according to the present disclosure is shown;

[0035] Figure 3is an exploded perspective view schematically showing an embodiment of a configuration of an extended reality content image display device;

[0036] Figure 4 is an exploded perspective view schematically showing an embodiment of a configuration of an extended reality content image display device;

[0037] Figure 5 yes Figure 4 A detailed plan view of the surface light source device shown in;

[0038] Figure 6 It is shown Figure 4 A side sectional view of the cross-sectional structure of the surface light source device shown in;

[0039] Figure 7 It is schematically shown Figure 5 and Figure 6 A plan view of the structure of an organic light emitting display surface of a surface light source device shown in FIG.

[0040] Figure 8 is a circuit diagram showing an embodiment of a circuit structure of a light-emitting pixel according to the present disclosure;

[0041] Fig. 9 It is shown Figure 7 A plan view of a first embodiment of an arrangement structure of light-emitting pixels of a surface light-emitting unit shown in FIG.

[0042] Fig.10 It is shown Figure 7 A plan view of a second embodiment of the arrangement structure of the light-emitting pixels of the surface light-emitting unit shown in FIG.

[0043] Fig.11 It is shown Figure 7 A plan view of a third embodiment of the arrangement structure of the light-emitting pixels of the surface light-emitting unit shown in FIG.

[0044] Fig.12 It is shown Figure 7 A plan view of a fourth embodiment of an arrangement structure of light-emitting pixels of a surface light-emitting unit shown in FIG.

[0045] Fig.13 yes Figure 3 A detailed plan view of the surface light source device shown in;

[0046] Fig.14 It is schematically shown Fig.13 A plan view of the structure of a surface light emitting unit of a surface light source device shown in FIG.

[0047] Fig.15A yes Figure 3 A detailed plan view of the spatial light modulator shown in FIG. Fig. 15B yes Fig.15A An enlarged view of the dot-dash circle portion;

[0048] Fig.16 It is schematically shown Fig.15A A plan view of the structure of a liquid crystal image display unit of a spatial light modulator shown in;

[0049] Fig.17 An embodiment of a backlight and backlight display resolution of a surface light source device is shown;

[0050] Fig.18 An embodiment of a display image and image display resolution of a spatial light modulator is shown;

[0051] Fig.19 An embodiment of the resolution of an extended reality content image displayed by a display device is shown;

[0052] Fig. 20 An embodiment of a backlight and backlight display resolution of a surface light source device is shown;

[0053] Fig.21 An embodiment of a spatial light modulator display image and image display resolution is shown; and

[0054] Fig. 22 An embodiment of the resolution of an extended reality content image displayed by a display device is shown. DETAILED DESCRIPTION

[0055] The present disclosure will now be described more fully below with reference to the accompanying drawings, in which preferred embodiments of the present disclosure are shown. However, the present disclosure may be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. Instead, these embodiments are provided so that the present disclosure will be thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art.

[0056] It will also be understood that when a layer is referred to as being 'on' another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may also be present. Throughout the specification, the same reference numerals refer to the same components.

[0057] It will be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the teachings of the present disclosure, the first element discussed below may be referred to as the second element. Similarly, the second element may also be referred to as the first element.

[0058] Each of the features of the various embodiments of the present disclosure can be combined with each other in part or in whole, and various interlocks and drives are technically possible. Each embodiment can be implemented independently of each other, or can be implemented together in association.

[0059] Hereinafter, illustrative embodiments will be described with reference to the accompanying drawings.

[0060] Figure 1 An embodiment using a projector-type extended reality content image display device according to the present disclosure is shown. Figure 2 An embodiment of using a glasses-type augmented reality content image display device according to the present disclosure is shown.

[0061] refer to Figure 1 and Figure 2 , the display device 200 in an embodiment for displaying an extended reality content image such as a hologram can be formed as a projector type, which can be easily carried by a user and can be set (e.g., installed) or assembled in a structure on a ceiling or a wall or in a predetermined space.

[0062] Furthermore, the display device 200 in the embodiments may be integrated with a glasses-type frame, which may be easily carried and worn or removed by a user, or may be provided (eg, mounted) or assembled in a glasses-type frame.

[0063] In the present disclosure, the display device 200 displays and provides an extended reality content image FH in a predetermined space through a three-dimensional ("3D") lens or sheet, so that the extended reality content image FH such as a hologram can be visible to the user's eyes in the real space and recognized. The extended reality content image FH may include two-dimensional ("2D") or 3D extended reality image content, which is a combination of a graphic image, an image captured by a camera, and a text image, as well as sound content.

[0064] Figure 3 is an exploded perspective view schematically showing an embodiment of a configuration of an augmented reality content image display device. Figure 4 is an exploded perspective view schematically showing an embodiment of a configuration of an augmented reality content image display device.

[0065] Reference Figure 3 and Figure 4 , for displaying extended reality content images such as holograms FH Figure 3 The display device 200 in the embodiment may be shaped like a polygonal plane such as a square plane or a rectangular plane or a quadrilateral plate. Figure 2 The display device 200 in embodiments of the present invention may be shaped like a disk or circular plate with curved edges, such as circular or oval edges.

[0066] The display device 200 shaped like a quadrilateral or circular plate includes at least one spatial light modulator 210, at least one surface light source device 110, and at least one image transmission member 310. Depending on the planar shape of the display device 200, each of the spatial light modulator 210 and the surface light source device 110 may be shaped like a quadrilateral plate or a circular plate.

[0067] At least one surface light source device 110 is disposed behind the spatial light modulator 210 to provide background light as backlight to a rear surface of the spatial light modulator 210 .

[0068] The surface light source device 110 may include an organic light emitting display device ("OLED"), an inorganic electroluminescent ("EL") display device, a quantum dot light emitting display device ("QED"), a cathode ray tube ("CRT") display device, a micron light emitting diode ("LED") display device, or a nano LED display device.

[0069] The following will describe as an example a case where an organic light emitting display panel is applied as the surface light source device 110. However, the surface light source device 110 in the embodiment is not limited to an organic light emitting display panel or device, and other display panels or devices listed above or known in the art may also be applied within the scope of the shared technical spirit.

[0070] The surface light source device 110 applied as an organic light emitting display panel may be formed to have a different resolution than the at least one spatial light modulator 210. Specifically, the surface light source device 110 may be formed to have a lower resolution than the at least one spatial light modulator 210.

[0071] The surface light source device 110 receives the extended reality content image data from the outside and arranges the extended reality content image data according to a preset first resolution. Then, the extended reality content image data of the first resolution is converted into an analog image signal and displayed on the emission area of ​​the organic light emitting display surface.

[0072] The extended reality content image display light of the first resolution displayed on the organic light emitting display surface of the surface light source device 110 (ie, on the emission area of ​​the surface light source device 110) is provided to the rear surface of the spatial light modulator 210 as backlight, ie, background light.

[0073] The spatial light modulator 210 generates an extended reality content image based on extended reality content image data from the outside, and provides the extended reality content image to the image transmission component 310 in front of the spatial light modulator 210, so that the extended reality content image is displayed in the image display direction and space of the image transmission component 310.

[0074] The spatial light modulator 210 may include a liquid crystal display device (“LCD”) that displays an augmented reality content image of a second resolution on a front surface through background light of a first resolution provided from a surface light source device 110 disposed behind the spatial light modulator 210 .

[0075] The case where a liquid crystal display panel is applied as the spatial light modulator 210 will be described below as an example. However, the present disclosure is not limited to liquid crystal display panels or devices, and other display devices listed above or known in the art may also be applied within the scope of the shared technical spirit.

[0076] The spatial light modulator 210 used as a liquid crystal display panel may be formed to have the same resolution or a different resolution than the at least one surface light source device 110. However, in an embodiment, the spatial light modulator 210 may be formed to have a higher resolution than the at least one surface light source device 110.

[0077] The spatial light modulator 210 receives the extended reality content image data input from the outside, and arranges the extended reality content image data according to a preset second resolution. The extended reality content image data of the second resolution is converted into an analog image signal and displayed on an image display surface on which a plurality of pixels are arranged. The second resolution of the spatial light modulator 210 is set to be higher than the first resolution of the surface light source device 110. Therefore, the spatial light modulator 210 generates an extended reality content image of a second resolution higher than the first resolution by providing background light of the first resolution from at least one surface light source device 110 behind the spatial light modulator 210, and displays the generated extended reality content image on its front surface.

[0078] At least one image transmission member 310 transmits an extended reality content image FH of a third resolution in which background light of a first resolution and an extended reality content image of a second resolution are mixed through a preset optical path to guide and provide the extended reality content image FH in a preset image display direction. Specifically, the image transmission member 310 forms a display path (or optical path) of the extended reality content image FH so that the extended reality content image FH of the third resolution can be displayed in a preset space or display surface.

[0079] The image transmission member 310 may include at least one optical member of an optical waveguide (e.g., a prism), a diverging lens, and a focusing lens. Therefore, the extended reality content image displayed by the at least one spatial light modulator 210 is guided to a predetermined space through at least one of the optical waveguide, the diverging lens, and the focusing lens, and is recognized as an extended reality content image FH of a third resolution in the real space. The extended reality content image FH displayed as a hologram type by the image transmission member 310 may include 2D or 3D extended reality image content, which is a combination of a graphic image, an image captured by a camera, and a text image, and sound content.

[0080] Figure 5 yes Figure 4 Detailed plan view of the surface light source device shown in .

[0081] Reference Figure 5 , the at least one surface light source device 110 is formed to be used as a light source for providing background light to the rear surface of the at least one spatial light modulator 210.

[0082] In a plan view, the surface light source device 110 may have a quadrilateral shape such as a rectangular shape or a square shape, a circular shape, or an elliptical shape. In an embodiment, when the spatial light modulator 210 is formed in a circular shape in a plan view, the surface light source device 110 may also have a circular shape corresponding to the planar circular shape of the spatial light modulator 210. However, the present disclosure is not limited thereto, and the surface light source device 110 and the spatial light modulator 210 may also be formed in a rectangular shape, the long side of which is arranged in the horizontal direction, and the short side is arranged in the vertical direction.

[0083] refer to Figure 5 , at least one surface light source device 110 includes: a surface light emitting unit (also called an organic light emitting display unit) DU1, which displays background light as a surface light source; an emission driving circuit 120, which drives the sub-light emitting pixels of the surface light emitting unit DU1; and a first data processor 140, which provides extended reality content image data to the emission driving circuit 120.

[0084] Specifically, at least one surface light source device 110 includes a surface light emitting unit DU1 that displays background light as a surface light source. Here, the surface light emitting unit DU1 may include a plurality of sub-light emitting pixels, and the background light as the surface light source may be emitted through the sub-light emitting pixels. The sub-light emitting pixels in the surface light emitting unit DU1 are formed and arranged to correspond to a preset first resolution.

[0085] The first data processor 140 extracts the extended reality content image data of the first resolution from the extended reality content image data input from the outside, or converts the extended reality content image data input from the outside into the extended reality content image data of the preset first resolution. Then, the first data processor 140 transmits the extended reality content image data with the first resolution to the emission driving circuit 120 of the surface light source device 110.

[0086] The emission driving circuit 120 may output a data signal and a voltage for driving the sub-emission pixels of the surface light-emitting unit DU1. Specifically, the emission driving circuit 120 receives the extended reality content image data from the first data processor 140 (such as a graphics card) and arranges the extended reality content image data according to a preset first resolution. Then, the extended reality content image data of the first resolution is converted into an analog image signal and provided to the sub-emission pixels arranged on the organic light-emitting display surface DA1 of the surface light-emitting unit DU1.

[0087] Figure 6 It is shown Figure 4 A side sectional view of the sectional structure of the surface light source device shown in FIG.

[0088] refer to Figure 5 and Figure 6 The surface light emitting unit DU1 may be divided into a first main area MA1 and a first sub-area SBA1. The first main area MA1 may include an organic light emitting display surface DA1 on which a plurality of sub-light emitting pixels performing surface emission are arranged, and a first non-display area NDA1 disposed around the organic light emitting display surface DA1.

[0089] The light emitted from the corresponding emission area or opening area of ​​the sub-luminescent pixel can be displayed on the organic light-emitting display surface DA1 as background light. To this end, the sub-luminescent pixel on the organic light-emitting display surface DA1 may include a pixel driver having a switching element, a pixel defining layer defining the emission area or the opening area, and a self-luminescent element.

[0090] The first non-display area NDA1 may be an area outside the organic light emitting display surface DA1. The first non-display area NDA1 may be defined as an edge area of ​​the first main area MA1. The first non-display area NDA1 may include a first gate driver 111 that provides a gate signal to a gate line and a fan-out line (not shown) connecting the emission driving circuit 120 and the organic light emitting display surface DA1.

[0091] The first sub-area SBA1 may extend from one side of the first main area MA1. The first sub-area SBA1 may include a flexible material that may be bent, folded, or curled. In an embodiment, when the first sub-area SBA1 is bent, it may overlap with the first main area MA1 in the thickness direction (Z-axis direction). The first sub-area SBA1 may include an emission drive circuit 120 and a pad unit connected to the first circuit board 130. Alternatively, the first sub-area SBA1 may be omitted, and the emission drive circuit 120 and the pad unit may be disposed in the first non-display area NDA1.

[0092] At least one emission driving circuit 120 may be formed as an integrated circuit and disposed (e.g., mounted) in the first sub-region SBA1 by a chip on glass (“COG”) method, a chip on plastic (“COP”) method, or an ultrasonic bonding method. In an embodiment, for example, the emission driving circuit 120 may be disposed in the first sub-region SBA1 and may overlap with the first main region MA1 in the thickness direction (Z-axis direction) by bending of the first sub-region SBA1. In another embodiment, the emission driving circuit 120 may be disposed (e.g., mounted) on the first circuit board 130.

[0093] The first circuit board 130 may be attached to the pad unit of the first sub-area SBA1 using an anisotropic conductive film ("ACF"). The leads of the first circuit board 130 may be electrically connected to the pad unit of the first sub-area SBA1. The first circuit board 130 may be a flexible printed circuit board, a printed circuit board, or a flexible film (such as a chip on film).

[0094] Figure 6 The first substrate SUB1 of the surface light-emitting unit DU1 shown in the figure may be a base substrate or a base member. The first substrate SUB1 may be a flexible substrate that can be bent, folded, or curled. In an embodiment, the first substrate SUB1 may include, for example, a glass material or a metal material. However, the present disclosure is not limited thereto. In another embodiment, the first substrate SUB1 may include a polymer resin such as polyimide ("PI").

[0095] The first thin film transistor layer TFTL1 may be disposed on the first substrate SUB1. The first thin film transistor layer TFTL1 may include a plurality of thin film transistors constituting a pixel driver of a sub-light emitting pixel. The first thin film transistor layer TFTL1 may also include a gate line, a data line, a power line, a gate control line, a fan-out line connecting the emission driving circuit 120 and the data line, and a lead connecting the emission driving circuit 120 and the pad unit. When the first gate driver 111 is formed on one side of the first non-display area NDA1 of the surface light emitting unit DU1, the first gate driver 111 may also include a thin film transistor.

[0096] The first thin film transistor layer TFTL1 may be disposed throughout the organic light emitting display surface DA1, the first non-display area NDA1, and the first sub-area SBA1. The thin film transistors, gate lines, data lines, and power lines of the pixels of the first thin film transistor layer TFTL1 may be disposed on the organic light emitting display surface DA1. The gate control lines and fan-out lines of the first thin film transistor layer TFTL1 may be disposed in the first non-display area NDA1. The leads of the first thin film transistor layer TFTL1 may be disposed in the first sub-area SBA1.

[0097] The first light emitting element layer EML1 may be disposed on the first thin film transistor layer TFTL1. The first light emitting element layer EML1 may include a plurality of light emitting elements, each of which includes a first electrode, a light emitting layer, and a second electrode sequentially stacked to emit light, and a pixel defining layer defining pixels. The light emitting elements of the first light emitting element layer EML1 may be disposed on the organic light emitting display surface DA1.

[0098] The first encapsulation layer TFEL1 may cover the upper surface and the side surface of the first light emitting element layer EML1 and may protect the first light emitting element layer EML1. The first encapsulation layer TFEL1 may include at least one inorganic layer and at least one organic layer to encapsulate the first light emitting element layer EML1.

[0099] Figure 7 It is schematically shown Figure 5 and Figure 6 A plan view of the structure of an organic light emitting display surface of a surface light source device shown in FIG.

[0100] refer to Figure 7 The organic light emitting display surface DA1 of the surface light emitting unit DU1 is an area that displays background light through surface light emission, and may be defined as a central area of ​​the surface light emitting unit DU1. The organic light emitting display surface DA1 may include a plurality of light emitting pixels OSP, gate lines GL, data lines DL, and power lines VL. Each of the light emitting pixels OSP may be defined as a minimum unit that emits light.

[0101] The gate line GL can simultaneously provide the light-emitting pixel OSP with a gate signal received from the first gate driver 111. The gate line GL can extend in the X-axis direction and the Y-axis direction according to the arrangement direction and the plane shape of the light-emitting pixel OSP, and can be arranged around the light-emitting pixel OSP in the X-axis direction or the Y-axis direction.

[0102] The data lines DL may provide the light-emitting pixels OSP with image data voltages received from the emission driving circuit 120. The data lines DL may extend in the X-axis direction and the Y-axis direction according to the arrangement direction and the planar shape of the light-emitting pixels OSP, and may be disposed around the light-emitting pixels OSP in the X-axis direction or the Y-axis direction.

[0103] The power line VL may provide each power supply voltage received from the emission driving circuit 120 to the light-emitting pixel OSP. Here, the power supply voltage may be at least one of a high potential driving voltage, a low potential ground voltage, and a reference voltage. The power line VL may extend in the X-axis direction and the Y-axis direction according to the arrangement direction and the plane shape of the light-emitting pixel OSP, and may be arranged around the light-emitting pixel OSP in the X-axis direction or the Y-axis direction.

[0104] The first non-display area NDA1 may include a first gate driver 111, a fan-out line FOL (refer to Fig.16 ) and a first gate control line. The first gate driver 111 may generate a gate signal in units of at least one frame based on the gate control signal, and may simultaneously provide the gate signal to the gate line GL in units of at least one frame.

[0105] The fan-out line FOL may extend from the emission driving circuit 120 to the organic light emitting display surface DA1. The fan-out line FOL may simultaneously provide the data lines DL with a data voltage received from the emission driving circuit 120 in units of at least one frame.

[0106] The first gate control line may extend from the emission driving circuit 120 to the first gate driver 111. The first gate control line may provide a gate control signal received from the emission driving circuit 120 to the first gate driver 111.

[0107] The emission driving circuit 120 may output a control signal (e.g., the same gate control signal) and an analog image signal for simultaneously driving the light-emitting pixel OSP to the fan-out line FOL. The emission driving circuit 120 may simultaneously provide the analog image signal to the data line DL through the fan-out line FOL. The analog image signal may be provided to the light-emitting pixel OSP, and the brightness of the light-emitting pixel OSP may be determined. The emission driving circuit 120 provides a gate control signal to the first gate driver 111 through the first gate control line.

[0108] Figure 8 is a circuit diagram showing an embodiment of a circuit structure of a light-emitting pixel according to the present disclosure.

[0109] Reference Figure 8 as well as Figure 7, each of the light-emitting pixels OSP arranged on the organic light-emitting display surface DA1 includes a plurality of pixel drivers DP1 to DPn (n is a natural number greater than 1) and a light-emitting element LEL.

[0110] The light emitting elements LEL are connected in series to the pixel drivers DP1 to DPn, and emit light by being driven by the pixel drivers DP1 to DPn.

[0111] The pixel drivers DP1 to DPn receive the same control signal (eg, the same gate control signal) and the analog image signal through the emission driving circuit 120 and the first gate driver 111, and drive the light emitting elements LEL connected in series therewith at the same driving timing in units of at least one frame.

[0112] Specifically, the light-emitting pixels OSP are set at an ultra-low resolution. In an embodiment, the light-emitting pixels OSP may be formed in units of at least three and arranged on the organic light-emitting display surface DA1, and the number of the light-emitting pixels OSP arranged on the organic light-emitting display surface DA1 may be a multiple of three (e.g., 3, 6, 9, 12, 15, ...).

[0113] The planar area of ​​the light emitting element LEL of each light emitting pixel OSP is inversely proportional to the resolution value. That is, the planar area of ​​each light emitting element LEL may be inversely proportional to the resolution at which the light emitting element LEL is set. Since the resistance-capacitance ("RC") value of each light emitting element LEL increases as the planar area of ​​each light emitting element LEL increases, each light emitting element LEL is connected to a plurality of pixel drivers DP1 to DPn to prevent a reduction in the amount of light emitted from each light emitting element LEL. Therefore, the pixel drivers DP1 to DPn of each light emitting pixel OSP may receive control signals and data voltages at the same timing, and drive the light emitting element LEL at the same driving timing.

[0114] refer to Figure 8 , each of the pixel drivers DP1 to DPn of each light emitting pixel OSP may be connected to a kth display initialization line GILk, a kth display scan line GLk, a kth display control line GCLk, and a kth emission control line VLk.

[0115] In addition, each of the pixel drivers DP1 to DPn can be connected to a first driving voltage line VDL to which a high potential first driving voltage is supplied, a second driving voltage line VSL to which a low potential second driving voltage is supplied, and a third driving voltage line VIL to which a high potential third driving voltage is supplied. Hereinafter, letters k and n used instead of numbers will be defined as positive integers not including zero.

[0116] Each of the pixel drivers DP1 to DPn of each light emitting pixel OSP may include a driving transistor DT, a switching element, and a capacitor CST1. The switching element includes first to sixth transistors ST1 to ST6.

[0117] The driving transistor DT may include a gate electrode, a first electrode, and a second electrode. The driving transistor DT controls a drain-source current Ids (hereinafter, also referred to as a "driving current") flowing between the first electrode and the second electrode according to a data voltage applied to the gate electrode. The driving current Ids flowing through the channel of the driving transistor DT is proportional to the square of the difference between the voltage Vsg between the first electrode and the gate electrode of the driving transistor DT and the threshold voltage Vth, as shown in Formula 1.

[0118] Ids = k' × (Vsg - Vth) 2 (1)

[0119] Wherein, k′ is a proportionality coefficient determined by the structure and physical characteristics of the driving transistor, Vsg is a voltage between the first electrode and the gate electrode of the driving transistor, and Vth is a threshold voltage of the driving transistor.

[0120] The light emitting element LEL emits light according to the driving current Ids provided simultaneously by the pixel drivers DP1 to DPn. As the driving current Ids provided in parallel from the pixel drivers DP1 to DPn increases, the amount of light emitted from the light emitting element LEL may increase.

[0121] The light emitting element LEL may be an organic light emitting diode including an organic light emitting layer disposed between an anode and a cathode. In an alternative embodiment, the light emitting element LEL may be an inorganic light emitting element including an inorganic semiconductor disposed between an anode and a cathode. In an alternative embodiment, the light emitting element LEL may be a quantum dot light emitting element including a quantum dot light emitting layer disposed between an anode and a cathode. In an alternative embodiment, the light emitting element LEL may be a micron light emitting element including a micron light emitting diode disposed between an anode and a cathode.

[0122] The anode of each light emitting element LEL may be connected to the first electrode of the fourth transistor ST4 and the second electrode of the sixth transistor ST6 of each of the pixel drivers DP1 to DPn, and the cathode may be connected to the second driving voltage line VSL. A parasitic capacitor Cel may be formed between the anode and the cathode of the light emitting element LEL.

[0123] The first transistor ST1 is turned on by the initialization scan signal of the kth display initialization line GILk to connect the gate electrode of the driving transistor DT to the third driving voltage line VIL. Therefore, the third driving voltage of the third driving voltage line VIL can be applied to the gate electrode of the driving transistor DT. The first transistor ST1 may include a gate electrode connected to the kth display initialization line GILk, a first electrode connected to the gate electrode of the driving transistor DT, and a second electrode connected to the third driving voltage line VIL.

[0124] The second transistor ST2 is turned on by the display scan signal of the kth display scan line GLk to connect the first electrode of the driving transistor DT to the data line DL. Therefore, the data voltage of the data line DL can be applied to the first electrode of the driving transistor DT. The second transistor ST2 may include a gate electrode connected to the kth display scan line GLk, a first electrode connected to the first electrode of the driving transistor DT, and a second electrode connected to the data line DL.

[0125] The third transistor ST3 is turned on by the display scan signal of the kth display scan line GLk to connect the gate electrode and the second electrode of the driving transistor DT. When the gate electrode and the second electrode of the driving transistor DT are connected, the driving transistor DT operates as a diode. The third transistor ST3 may include a gate electrode connected to the kth display scan line GLk, a first electrode connected to the second electrode of the driving transistor DT, and a second electrode connected to the gate electrode of the driving transistor DT.

[0126] The fourth transistor ST4 is turned on by the display control signal of the kth display control line GCLk to connect the anode of the light emitting element LEL to the third driving voltage line VIL. The third driving voltage of the third driving voltage line VIL may be applied to the anode of the light emitting element LEL. The fourth transistor ST4 may include a gate electrode connected to the kth display control line GCLk, a first electrode connected to the anode of the light emitting element LEL, and a second electrode connected to the third driving voltage line VIL.

[0127] The fifth transistor ST5 is turned on by the emission control signal of the kth emission control line VLk to connect the first electrode of the driving transistor DT to the first driving voltage line VDL. The fifth transistor ST5 may include a gate electrode connected to the kth emission control line VLk, a first electrode connected to the first driving voltage line VDL, and a second electrode connected to the first electrode of the driving transistor DT.

[0128] The sixth transistor ST6 is disposed between the second electrode of the driving transistor DT and the anode of the light emitting element LEL. The sixth transistor ST6 is turned on by the emission control signal of the kth emission control line VLk to connect the second electrode of the driving transistor DT to the anode of the light emitting element LEL. The sixth transistor ST6 may include a gate electrode connected to the kth emission control line VLk, a first electrode connected to the second electrode of the driving transistor DT, and a second electrode connected to the anode of the light emitting element LEL.

[0129] When both the fifth transistor ST5 and the sixth transistor ST6 are turned on, a driving current Ids of the driving transistor DT according to a data voltage applied to the gate electrode of the driving transistor DT may flow to the light emitting element LEL.

[0130] The capacitor CST1 is formed between the gate electrode of the driving transistor DT and the first driving voltage line VDL. A first capacitor electrode of the capacitor CST1 may be connected to the gate electrode of the driving transistor DT, and a second capacitor electrode may be connected to the first driving voltage line VDL.

[0131] When the first electrode of each of the first to sixth transistors ST1 to ST6 and the driving transistor DT is a source electrode, the second electrode may be a drain electrode. In an alternative embodiment, when the first electrode of each of the first to sixth transistors ST1 to ST6 and the driving transistor DT is a drain electrode, the second electrode may be a source electrode.

[0132] The active layer of each of the first to sixth transistors ST1 to ST6 and the driving transistor DT may include or consist of any one of polycrystalline silicon, amorphous silicon, and an oxide semiconductor. Figure 8 1 and 2 mainly describe the case where the first transistor ST1 to the sixth transistor ST6 and the driving transistor DT are formed as P-type metal oxide semiconductor field effect transistors ("MOSFET"), but the present disclosure is not limited thereto. In an embodiment, for example, the first transistor ST1 to the sixth transistor ST6 and the driving transistor DT may also be formed as N-type MOSFETs. In an alternative embodiment, at least one of the first transistor ST1 to the sixth transistor ST6 may be formed as an N-type MOSFET.

[0133] Fig. 9 It is shown Figure 7 A plan view of a first embodiment of the arrangement structure of the light-emitting pixels of the surface light-emitting unit shown in FIG. Fig.10 It is shown Figure 7 0 is a plan view of a second embodiment of the arrangement structure of the light-emitting pixels of the surface light-emitting unit shown in FIG.

[0134] refer to Fig. 9 and Fig.10 , the organic light emitting display surface DA1 may be formed in a circular shape in a plan view according to the planar shape of the surface light source device 110. Light emitted from the light emitting element LEL of each light emitting pixel OSP may be displayed as background light on the organic light emitting display surface DA1. The light emitting element LEL of each of the light emitting pixels OSP emits light in response to a driving current provided in parallel from a plurality of pixel drivers DP1 to DPn.

[0135] The light emitting pixels OSP may be formed in units of at least three and disposed on the organic light emitting display surface DA1. Therefore, the number of light emitting elements LEL disposed on the organic light emitting display surface DA1 may be a multiple of three (eg, 3, 6, 9, 12, 15, 18 ...).

[0136] On the organic light emitting display surface DA1 formed in a circular shape in a plan view, the light emitting element LEL can be approximately formed in at least any one of a fan shape, a triangle shape, a diamond shape, a circle shape, a semicircle shape and an ellipse shape in a plan view, or can be formed in a combination of each shape.

[0137] refer to Fig. 9 and Fig.10 , the light emitting elements LEL formed in a sector shape can be arranged in a circular shape in a plan view by surrounding the center of the organic light emitting display surface DA1 in a circular shape. The plane area of ​​each light emitting element LEL is inversely proportional to the resolution value. That is, as Fig. 9 As shown in , when the number of light emitting elements LEL is small and the resolution is low, the plane area of ​​each light emitting element LEL can be large. On the contrary, for example, Fig.10 As shown in , when the number of light emitting elements LEL is large and the resolution is high, the plane area of ​​each light emitting element LEL can be small.

[0138] Power lines VL (ie, first, second, and third driving voltage lines VDL, VSL, and VIL) that supply power voltages to the pixel drivers DP1 to DPn and the light emitting elements LEL may be disposed and formed between and around the light emitting elements LEL.

[0139] As described above, since the RC value of each light emitting element LEL increases as the plane area of ​​each light emitting element LEL increases, each light emitting element LEL is connected to a plurality of pixel drivers DP1 to DPn to prevent a reduction in the amount of light emitted from each light emitting element LEL. The pixel drivers DP1 to DPn of each light emitting pixel OSP may be formed and arranged along at least any one side direction of the light emitting element LEL to partially overlap the light emitting element LEL. The pixel drivers DP1 to DPn of each light emitting pixel OSP receive control signals and analog image signals at the same timing, and drive the light emitting element LEL at the same driving timing.

[0140] refer to Fig.10 , the first to third sub-pixels OSP1 to OSP3 respectively displaying red, green, and blue light may constitute each unit pixel UP emitting white light, and the unit pixels UP may be alternately and repeatedly arranged on the organic light emitting display surface DA1. The unit pixels UP may be arranged in a circular shape in a plan view by surrounding the center of the organic light emitting display surface DA1 in a circular shape.

[0141] Fig.11 It is shown Figure 7 0014 is a plan view of a third embodiment of an arrangement structure of light-emitting pixels of a surface light-emitting unit shown in FIG.

[0142] refer to Fig.11 A combination of first to third sub-pixels OSP1 to OSP3 approximately formed in a fan shape, a triangle shape, or a diamond shape in a plan view may be disposed on an organic light emitting display surface DA1 formed in a circular shape in a plan view.

[0143] In an embodiment, the first to third sub-pixels OSP1 to OSP3 approximately formed in a triangular shape and a rhombus shape (i.e., the light emitting elements LEL of the first to third sub-pixels OSP1 to OSP3) may be arranged in a circular shape in a plan view by, for example, surrounding the center of the organic light emitting display surface DA1 in a circular shape. Here, when the number of light emitting elements LEL arranged is small and the resolution is low, the plane area of ​​each light emitting element LEL may be large. On the contrary, when the number of light emitting elements LEL arranged is large and the resolution is high, the plane area of ​​each light emitting element LEL may be small. However, the light emitting elements LEL of the first to third sub-pixels OSP1 to OSP3 may have the same plane area.

[0144] A plurality of pixel drivers DP1 to DPn are connected to each of the light emitting elements LEL approximately formed in a fan shape, a triangle shape, or a diamond shape. The pixel drivers DP1 to DPn of each of the first to third sub-light emitting pixels OSP1 to OSP3 may be formed and arranged along at least any one side direction of the light emitting element LEL to partially overlap the light emitting element LEL. The pixel drivers DP1 to DPn of each of the first to third sub-light emitting pixels OSP1 to OSP3 receive control signals and data voltages at the same timing and drive the light emitting elements LEL at the same driving timing.

[0145] As described above, the first to third sub-pixels OSP1 to OSP3 respectively displaying red, green, and blue light may constitute each unit pixel UP, and the unit pixels UP may be alternately and repeatedly arranged on the organic light emitting display surface DA1. The unit pixels UP may be arranged in a circular shape in a plan view by surrounding the center of the organic light emitting display surface DA1 in a circular shape.

[0146] Fig.12 It is shown Figure 7 0 is a plan view of a fourth embodiment of the arrangement structure of light-emitting pixels of a surface light-emitting unit shown in FIG.

[0147] refer to Fig.12 , the light emitting element LEL included in any one of the first to third sub-pixels OSP1 to OSP3 may be approximately formed in a triangular shape. In addition, the light emitting elements LEL included in the other two of the first to third sub-pixels OSP1 to OSP3 may be approximately formed in a rhombus shape. Therefore, each unit light emitting pixel UP composed of a combination of the first to third sub-pixels OSP1 to OSP3 may be formed and arranged in a fan-shaped shape.

[0148] The unit light-emitting pixel UP formed in a fan shape (i.e., the light-emitting elements LEL included in the first to third sub-pixels OSP1 to OSP3 of the unit light-emitting pixel UP) may be arranged in a circular shape in a plan view by surrounding the center of the organic light-emitting display surface DA1 in a circular shape. Here, the light-emitting elements LEL of the first to third sub-pixels OSP1 to OSP3 of the unit light-emitting pixel UP may all have the same planar area.

[0149] At least one pixel driver DP1 to DPn may be connected to the light emitting element LEL of each of the first to third sub-pixels OSP1 to OSP3. The unit light emitting pixels UP may receive control signals and data voltages at the same timing and drive the light emitting elements LEL at the same driving timing.

[0150] Fig.13 yes Figure 3 A detailed plan view of the surface light source device shown in FIG. Fig.14 It is schematically shown Fig.13 0 is a plan view of the structure of a surface light emitting unit of a surface light source device shown in .

[0151] refer to Fig.13 and Fig.14 , the surface light source device 110 may have a quadrilateral shape such as a rectangular shape or a square shape in a plan view. In an embodiment, for example, when the spatial light modulator 210 is formed in a quadrilateral shape such as a rectangular shape or a square shape in a plan view, the surface light source device 110 may also have a quadrilateral shape such as a rectangular shape or a square shape corresponding to the planar shape of the spatial light modulator 210. In an embodiment, the surface light source device 110 and the spatial light modulator 210 may also be formed in a rectangular shape having a long side set in the horizontal direction and a short side set in the vertical direction.

[0152] The surface light source device 110 includes a surface light emitting unit DU1 that displays background light as a surface light source. Here, the surface light emitting unit DU1 may include a plurality of sub-light emitting pixels, and the background light as the surface light source may be emitted through the sub-light emitting pixels. The sub-light emitting pixels in the surface light emitting unit DU1 are formed and arranged to correspond to a preset first resolution.

[0153] The first data processor 140 extracts the first resolution of the extended reality content image data from the externally input extended reality content image data, or converts the externally input extended reality content image data into the preset first resolution of the extended reality content image data. Then, the first resolution of the extended reality content image data is transmitted to the emission driving circuit 120 of the surface light source device 110.

[0154] The emission driving circuit 120 may output a data signal and a voltage for driving the sub-emission pixels of the surface light-emitting unit DU1. Specifically, the emission driving circuit 120 receives the extended reality content image data from the first data processor 140 (such as a graphics card) and arranges the extended reality content image data according to a preset first resolution. Then, the extended reality content image data of the first resolution is converted into an analog image signal and provided to the sub-emission pixels arranged on the organic light-emitting display surface DA1 of the surface light-emitting unit DU1.

[0155] The organic light emitting display surface DA1 of the surface light emitting unit DU1 is a region that displays background light through surface light emission, and may be defined as a central region of the surface light emitting unit DU1 .

[0156] The light emitting pixels OSP may be formed in units of at least three and disposed on the organic light emitting display surface DA1. Therefore, the number of light emitting elements LEL disposed on the organic light emitting display surface DA1 may be a multiple of three (eg, 3, 6, 9, 12, 15, 18 ...).

[0157] Specifically, for example, the light emitting elements LEL of the first to third sub-pixels OSP1 to OSP3 may be formed in a quadrilateral shape such as a rectangle or a square on the organic light emitting display surface DA1 formed in a quadrilateral shape in a plan view.

[0158] Each unit light-emitting pixel UP or the first sub-light-emitting pixel OSP1 to the third sub-light-emitting pixel OSP3 constituting each unit light-emitting pixel UP can be formed and arranged in a vertical or horizontal stripe shape on the organic light-emitting display surface DA1. The plane area of ​​each light-emitting element LEL is inversely proportional to the resolution value. That is, when the number of light-emitting elements LEL set is small and the resolution is low, the plane area of ​​each light-emitting element LEL can be large. On the contrary, when the number of light-emitting elements LEL set is large and the resolution is high, the plane area of ​​each light-emitting element LEL can be small. However, the light-emitting elements LEL of the first sub-light-emitting pixel OSP1 to the third sub-light-emitting pixel OSP3 can have the same plane area.

[0159] Each light emitting element LEL formed in a quadrilateral shape is connected to a plurality of pixel drivers DP1 to DPn. The pixel driver DP1 to DPn of each of the first to third sub-light emitting pixels OSP1 to OSP3 may partially overlap the light emitting element LEL, and may be formed and arranged along at least any one side direction of the light emitting element LEL. The pixel driver DP1 to DPn of each of the first to third sub-light emitting pixels OSP1 to OSP3 receives control signals and data voltages at the same timing, and drives the light emitting element LEL at the same driving timing.

[0160] Fig.15A yes Figure 3 A detailed plan view of the spatial light modulator shown in FIG. Fig. 15B yes Fig.15A An enlarged view of the dot-dashed circle portion.

[0161] refer to Fig.15A , the spatial light modulator 210 is used as an extended reality content image display device, which displays an extended reality content image on the front surface through the background light provided from the surface light source device 110 set behind the spatial light modulator 210.

[0162] The spatial light modulator 210 can be formed in the same planar shape as the surface light source device 110 that provides background light as backlight, and can have a quadrilateral shape, a circular shape, or an elliptical shape such as a rectangular shape or a square shape in a plan view. In an embodiment, when the surface light source device 110 is formed in a quadrilateral shape such as a rectangular shape, the spatial light modulator 210 can have a quadrilateral shape such as a rectangular shape corresponding to the shape of the surface light source device 110, which has, for example, a long side set in the horizontal direction. However, the present disclosure is not limited to this. The long side can also be set in the vertical direction, or the spatial light modulator 210 can also be rotatably mounted so that its long side can be variably set in the horizontal direction or the vertical direction. Similar to the surface light source device 110, the spatial light modulator 210 can also be formed in a circular shape in a plan view.

[0163] refer to Fig.15A , the spatial light modulator 210 includes a liquid crystal image display unit DU2 and a second data processor 240 .

[0164] The liquid crystal image display unit DU2 displays an augmented reality content image on the front surface in a front surface direction (a direction substantially perpendicular to the front surface) by the background light provided from the surface light source device 110 disposed behind the spatial light modulator 210. The liquid crystal image display unit DU2 includes a plurality of liquid crystal pixels, and displays the augmented reality content image through the liquid crystal pixels. The liquid crystal pixels in the liquid crystal image display unit DU2 are formed and arranged to correspond to a preset second resolution.

[0165] The second data processor 240 provides the augmented reality content image data to the display driving circuit 220 driving the liquid crystal pixels of the liquid crystal image display unit DU2. In an embodiment, the second data processor 240 may be disposed on the second circuit board 230, and the display driving circuit 220 may be disposed in the second sub-area SBA2.

[0166] The second data processor 240 extracts the second resolution of the extended reality content image data from the externally input extended reality content image data, or converts the externally input extended reality content image data into the preset second resolution of the extended reality content image data. Then, the second resolution of the extended reality content image data is transmitted to the display driving circuit 220 of the spatial light modulator 210.

[0167] The display driving circuit 220 of the spatial light modulator 210 can output a data signal and a voltage for driving the liquid crystal pixels of the liquid crystal image display unit DU2. Specifically, the display driving circuit 220 receives the extended reality content image data from the second data processor 240 (such as a graphics card) and arranges the extended reality content image data according to a preset second resolution. Then, the extended reality content image data of the second resolution is converted into an analog image signal and provided to the liquid crystal pixels arranged on the image display surface DA2 of the liquid crystal image display unit DU2.

[0168] Fig.16 It is schematically shown Fig.15A 1 is a plan view of the structure of a liquid crystal image display unit of a spatial light modulator shown in FIG.

[0169] refer to FIG. 15A to FIG. 16 , the image display surface DA2 is an image display area that displays an extended reality content image, and may be defined as a central area of ​​the liquid crystal image display unit DU2. The image display surface DA2 may include a plurality of liquid crystal pixels LSP, a plurality of gate lines GL, a plurality of data lines DL, and a plurality of power lines VL. Each of the liquid crystal pixels LSP may be defined as a minimum unit that displays an extended reality content image by passing background light therethrough.

[0170] like Fig. 15B As shown in , each of the liquid crystal pixels LSP includes a data line DL, a gate line GL crossing the data line DL, a thin film transistor TFT formed at the intersection of the data line DL and the gate line GL, a pixel electrode connected to the thin film transistor TFT, a liquid crystal cell Clc formed in a region between the pixel electrode and the common electrode, and a storage capacitor Cst formed in parallel with the liquid crystal cell Clc. The liquid crystal cell Clc is driven by a differential voltage between a data voltage of the pixel electrode and a common voltage Vcom of the common electrode and an electric field according to the differential voltage. The liquid crystal cell Clc realizes image display light by diffracting and passing background light through the differential voltage between the data voltage and the common voltage Vcom and the electric field according to the differential voltage. A color filter may be provided on each liquid crystal pixel LSP to display a colored image.

[0171] The gate lines GL may provide the liquid crystal pixels LSP with gate signals received from the second gate driver 221. The gate lines GL may extend in an X-axis direction and may be spaced apart from each other in a Y-axis direction crossing the X-axis direction.

[0172] The data lines DL may provide the liquid crystal pixels LSP with image data voltages received from the display driving circuit 220. The data lines DL may extend in the Y-axis direction and may be spaced apart from each other in the X-axis direction.

[0173] The power line VL may provide the liquid crystal pixel LSP with a power supply voltage received from the display driving circuit 220 , such as a common voltage Vcom.

[0174] The second non-display area NDA2 may include a second gate driver 221, a fan-out line FOL, and a second gate control line GCL2. The second gate driver 221 may generate a plurality of gate signals based on the gate control signal, and may sequentially provide the gate signals to the gate lines GL according to a set order.

[0175] The fan-out line FOL may extend from the display driving circuit 220 to the image display surface DA2. The fan-out line FOL may provide a data voltage received from the display driving circuit 220 to the data line DL.

[0176] The second gate control line GCL2 may extend from the display driving circuit 220 to the second gate driver 221. The second gate control line GCL2 may provide a gate control signal received from the display driving circuit 220 to the second gate driver 221.

[0177] The display driving circuit 220 may output a control signal and an image data voltage for driving the liquid crystal pixel LSP of the image display surface DA2 to the fan-out line FOL. The display driving circuit 220 may provide the image data voltage to the data line DL through the fan-out line FOL. The image data voltage may be provided to the liquid crystal pixel LSP, and the brightness of the liquid crystal pixel LSP may be determined. The display driving circuit 220 may provide a gate control signal to the second gate driver 221 through the second gate control line GCL2.

[0178] Fig.17 An implementation of the backlighting of a surface light source device and the backlighting display resolution is shown.

[0179] refer to Fig.17 , the first data processor 140 of the surface light source device 110 can convert the extended reality content image data input from the outside into extended reality content image data of a preset first resolution. Then, the extended reality content image data of the first resolution is transmitted to the emission driving circuit 120 of the surface light source device 110.

[0180] The emission driving circuit 120 of the surface light source device 110 receives the extended reality content image data of the first resolution from the first data processor 140, and arranges the extended reality content image data according to the first resolution. Then, the extended reality content image data of the first resolution is converted into an analog image signal and provided to the sub-pixels arranged on the organic light-emitting display surface DA1 of the surface light-emitting unit DU1. The image FH (110) according to the first resolution is displayed on the organic light-emitting display surface DA1 of the surface light-emitting unit DU1, and the image display light according to the first resolution is provided to the spatial light modulator 210 as the surface light source and the background light.

[0181] Fig.18 Embodiments of a spatial light modulator display image and image display resolution are shown.

[0182] refer to Fig.18 The second data processor 240 of the spatial light modulator 210 converts the externally inputted augmented reality content image data into augmented reality content image data of a preset second resolution. Then, the augmented reality content image data of the second resolution is transmitted to the display driving circuit 220 of the spatial light modulator 210.

[0183] As described above, the second resolution of the spatial light modulator 210 may be set to be different from the first resolution of the surface light source device 110. That is, the second resolution of the spatial light modulator 210 may be set higher than the first resolution of the surface light source device 110.

[0184] The display driving circuit 220 of the spatial light modulator 210 receives the augmented reality content image data of the second resolution from the second data processor 240, and arranges the augmented reality content image data according to the preset second resolution. Then, the augmented reality content image data of the second resolution is converted into an analog image signal and provided to the liquid crystal pixels arranged on the image display surface DA2 of the liquid crystal image display unit DU2. Therefore, the spatial light modulator 210 generates an augmented reality content image FH(210) of a second resolution higher than the first resolution by the background light of the first resolution provided from the surface light source device 110, and displays the augmented reality content image FH(210) on the front surface.

[0185] Fig.19 An embodiment of the resolution of an extended reality content image displayed by a display device is shown.

[0186] refer to Fig.19The background light of the first resolution provided from the surface light source device 110 and the extended reality content image FH(210) of the second resolution according to the spatial light modulator 210 are mixed so that the extended reality content image FH(200) of the third resolution is displayed on the front surface of the spatial light modulator 210.

[0187] The augmented reality content image FH (200) of the third resolution is provided to the image transmission member 310, and the image transmission member 310 forms a display path (or optical path) of the augmented reality content image FH (200) so that the augmented reality content image FH (200) of the third resolution can be displayed in a preset space or on a display surface. Therefore, the augmented reality content image FH (210) displayed by the at least one spatial light modulator 210 is guided to a predetermined space through at least one of an optical waveguide, a diffusion lens, and a focusing lens, and is recognized as the augmented reality content image FH (200) in the real space.

[0188] Fig. 20 An implementation of the backlighting of a surface light source device and the backlighting display resolution is shown. Fig.21 Embodiments of a spatial light modulator display image and image display resolution are shown.

[0189] refer to Fig. 20 and Fig.21 , the emission driving circuit 120 of the surface light source device 110 receives the extended reality content image data of the first resolution from the first data processor 140, and arranges the extended reality content image data according to the first resolution. Then, the extended reality content image data of the first resolution is converted into an analog image signal and provided to the sub-pixels arranged on the organic light-emitting display surface DA1 of the surface light-emitting unit DU1.

[0190] An image FH(110) according to the first resolution is displayed on the organic light emitting display surface DA1 of the surface light emitting unit DU1, and image display light according to the first resolution is provided to the spatial light modulator 210 as a surface light source and background light.

[0191] The display driving circuit 220 of the spatial light modulator 210 receives the augmented reality content image data of the second resolution from the second data processor 240, and arranges the augmented reality content image data according to the preset second resolution. Then, the augmented reality content image data of the second resolution is converted into an analog image signal and provided to the liquid crystal pixels arranged on the image display surface DA2 of the liquid crystal image display unit DU2.

[0192] The spatial light modulator 210 generates an augmented reality content image FH ( 210 ) having a second resolution higher than the first resolution through the background light of the first resolution provided from the surface light source device 110 , and displays the augmented reality content image FH ( 210 ) on the front surface.

[0193] Fig. 22 An embodiment of the resolution of an extended reality content image displayed by a display device is shown.

[0194] like Fig. 22 As shown in the figure, the background light of the first resolution provided from the surface light source device 110 and the extended reality content image FH (210) of the second resolution according to the spatial light modulator 210 are mixed, so that the extended reality content image FH (200) of the third resolution is displayed on the front surface of the spatial light modulator 210.

[0195] The augmented reality content image FH (200) of the third resolution is provided to the image transmission component 310, and the image transmission component 310 forms a display path (or optical path) of the augmented reality content image FH (200), so that the augmented reality content image FH (200) of the third resolution can be displayed on a preset space or display surface.

[0196] At the end of the detailed description, those skilled in the art will appreciate that many changes and modifications may be made to the preferred embodiment without departing substantially from the principles of the present disclosure. Therefore, the disclosed preferred embodiments of the present disclosure are used only in an overview and descriptive sense, and not for a limiting purpose.

Claims

1. A display device, characterized in that: include: at least one spatial light modulator, displaying an augmented reality content image; a surface light source device, disposed behind the at least one spatial light modulator, and providing image display light of a first resolution as background light to the spatial light modulator; as well as at least one image transmission component, defining a display path of the augmented reality content image, The surface light source device includes an organic light-emitting display unit and an emission driving circuit, in which a plurality of sub-light-emitting pixels performing surface light emission are arranged, and the emission driving circuit drives each of the plurality of sub-light-emitting pixels of the organic light-emitting display unit.

2. The display device according to claim 1, characterized in that The emission driving circuit generates a gate control signal and an analog image signal for driving the plurality of sub-light-emitting pixels at the same timing in units of at least one frame, the gate control signal is provided to the first gate driver in units of at least one frame, and the analog image signal is provided to the plurality of sub-light-emitting pixels simultaneously.

3. The display device according to claim 2, characterized in that The plurality of sub-light-emitting pixels include: A plurality of pixel drivers simultaneously receive the gate control signal, and a light emitting element connected in series with the plurality of pixel drivers to emit light by being driven by the plurality of pixel drivers, The plurality of pixel drivers receive the same gate control signals and the same analog image signals through the emission driving circuit and the first gate driver, so that the light emitting element emits light.

4. The display device according to claim 2, characterized in that Each of the plurality of sub-light-emitting pixels includes a plurality of pixel drivers and light-emitting elements, and In which, each of the light-emitting elements included in each of the multiple sub-light-emitting pixels is formed in the organic light-emitting display surface of the surface light source device in at least any one of a fan shape, a triangular shape, a diamond shape, a quadrilateral shape other than the diamond shape, a circular shape, a semicircular shape and an elliptical shape, or is formed as a combination of different shapes.

5. The display device according to claim 4, characterized in that The light emitting elements included in each of the plurality of sub-light emitting pixels are arranged in the circular shape in a plan view by surrounding the center of the organic light emitting display surface in the circular shape, or are arranged in the quadrilateral shape in the plan view by surrounding the center of the organic light emitting display surface in the quadrilateral shape, wherein the plurality of pixel drivers included in each of the plurality of sub-light-emitting pixels are connected to the light-emitting element in a series structure, wherein the plurality of pixel drivers included in each of the plurality of sub-light-emitting pixels partially overlap with each of the light-emitting elements and are arranged along at least any one side direction of the light-emitting elements; and The gate control signal and the analog image signal which are the same as each other are simultaneously provided to the plurality of pixel drivers included in each of the plurality of sub-light-emitting pixels, so as to simultaneously drive each of the light-emitting elements.

6. The display device according to claim 4, characterized in that Three sub-pixels of the plurality of sub-pixels that respectively display red light, green light, and blue light constitute each unit light-emitting pixel that emits white light, the unit light-emitting pixels are alternately and repeatedly arranged on the organic light-emitting display surface, and a combination of the three sub-pixels that form the fan shape, the triangle shape, or the diamond shape in a plan view is arranged in each unit light-emitting pixel, wherein the light emitting element included in any one of the three sub-pixels of each unit light emitting pixel is formed into the triangular shape, and the light emitting elements included in the remaining two of the three sub-pixels are formed into the rhombus shape, so that each unit light emitting pixel including the combination of the three sub-pixels is formed and arranged into the fan-shaped shape, and The three sub-light-emitting pixels of each unit light-emitting pixel are arranged in the circular shape in the plan view by surrounding the center of the organic light-emitting display surface in the circular shape, and are formed to have the same plane area.

7. The display device according to claim 1, characterized in that The surface light source device also includes a first data processor, which extracts extended reality content image data of the first resolution from extended reality content image data input from the outside, or converts the extended reality content image data input from the outside into the extended reality content image data of the first resolution, and the emission driving circuit converts the extended reality content image data of the first resolution into an analog image signal, and provides the analog image signal to the multiple sub-pixels of the organic light-emitting display unit.

8. The display device according to claim 7, characterized in that The at least one spatial light modulator generates an augmented reality content image with a second resolution by using the image display light with the first resolution as the background light, and wherein the at least one image transmission component defines a display path of an augmented reality content image with a third resolution in which the image display light with the first resolution and the augmented reality content image with the second resolution are mixed, Wherein, the spatial light modulator comprises: a liquid crystal image display unit that displays the augmented reality content image of the second resolution in a front surface direction by using the image display light of the first resolution provided from the surface light source device disposed behind the spatial light modulator as the background light; a second data processor, which extracts the extended reality content image data of the second resolution from the extended reality content image data input from the outside, or converts the extended reality content image data input from the outside into the extended reality content image data of the second resolution; and a display driving circuit, converting the augmented reality content image data of the second resolution into an analog image signal, and providing the analog image signal to a liquid crystal pixel of the liquid crystal image display unit, The first resolution is a resolution set to be lower than the second resolution, and the third resolution is a mixed resolution of the first resolution and the second resolution.

9. The display device according to claim 1, characterized in that: The surface light source device generates the image display light of the first resolution as a surface light source by converting the extended reality content image data input from the outside into the extended reality content image data of the first resolution, converting the extended reality content image data of the first resolution into an analog image signal, and providing the analog image signal to the plurality of sub-light-emitting pixels of the organic light-emitting display unit; wherein the spatial light modulator converts the extended reality content image data input from the outside into extended reality content image data of a second resolution, converts the extended reality content image data of the second resolution into an analog image signal, and provides the analog image signal to liquid crystal pixels of a liquid crystal image display unit, and generates an extended reality content image of the second resolution by using the image display light of the first resolution provided from the surface light source device disposed behind the spatial light modulator as the background light; and The at least one image transmission component forms a display path of an augmented reality content image with a third resolution in which the image display light with the first resolution and the augmented reality content image with the second resolution are mixed.

10. A display device, characterized in that: include: at least one spatial light modulator, displaying an augmented reality content image; a surface light source device, disposed behind the at least one spatial light modulator, and providing image display light of a first resolution as background light to the spatial light modulator; as well as at least one image transmission component, defining a display path of the augmented reality content image, The surface light source device includes an organic light emitting display unit and an emission driving circuit, in which a plurality of sub-light emitting pixels for performing surface light emission are arranged, and the emission driving circuit drives the plurality of sub-light emitting pixels of the organic light emitting display unit. The plurality of sub-light-emitting pixels include a plurality of pixel drivers and a light-emitting element, and In which, the light-emitting element included in each of the multiple sub-light-emitting pixels is formed in the organic light-emitting display surface of the surface light source device in at least any one of a fan-shaped shape, a triangular shape, a diamond shape, a quadrilateral shape other than the diamond shape, a circular shape, a semicircular shape and an elliptical shape, or is formed as a combination of different shapes.

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