Color foveated display device and manufacturing method thereof

Abstract

A display device includes a display panel having a first emission region and one or more second emission regions disposed adjacent to the first emission region. The display device includes a plurality of light emitters (511) arranged in the first emission region corresponding to a first color gamut, and a plurality of light emitters (521, 531) arranged in one or more second emission regions corresponding to a second color gamut different from the first color gamut. A method for manufacturing a display device is also described, the display device having a plurality of light emitters in the first emission region corresponding to the first color gamut and a plurality of light emitters in the second emission region corresponding to the second color gamut.

Description

Technical Field

[0001] The present application relates generally to head mounted display devices and, more particularly, to optical components used in head mounted display devices.

[0002] background

[0003] Head-mounted display devices (also referred to herein as head-mounted displays) are becoming increasingly popular as a means of providing visual information to users.

[0004] One or more display panels used in a head-mounted display device have a plurality of light emitters configured to emit light. The head-mounted display device consumes a large amount of power to drive the plurality of light emitters arranged in the one or more display panels, which provide high color fidelity images throughout the display panels. However, the human eye has uneven color vision throughout the field of view because the color sensing cones are concentrated in the fovea region of the eye.

[0005] Overview

[0006] Therefore, there is a need for a head mounted display device that provides high color fidelity images only to the fovea region of the eye, thereby reducing power consumption of the display device.

[0007] The above-referenced disadvantages and other problems are reduced or eliminated by the disclosed devices, systems and methods according to the appended claims.

[0008] According to some embodiments, a display device includes a display panel configured to project light, the display panel having a plurality of emission regions including a first emission region and one or more second emission regions. The first emission region is different from and mutually exclusive to the one or more second emission regions, and the one or more second emission regions are disposed adjacent to the first emission region. The display device includes a plurality of light emitters arranged in the first emission region corresponding to a first color gamut, and a plurality of light emitters arranged in the one or more second emission regions corresponding to a second color gamut. The second color gamut is different from the first color gamut.

[0009] According to some embodiments, a method of manufacturing a display device includes arranging a plurality of light emitters corresponding to a first color gamut in a first emission region of a display panel having a plurality of emission regions, and arranging a plurality of light emitters corresponding to a second color gamut in one or more second emission regions of the display panel. The first emission region is different from and incompatible with the one or more second emission regions, and the one or more second emission regions are disposed adjacent to the first emission region. The first color gamut is different from the second color gamut.

[0010] Therefore, the disclosed embodiments provide apparatus and methods for reducing power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] For a better understanding of the various embodiments described, reference should be made to the following description of the embodiments in conjunction with the following drawings, wherein like reference numerals designate corresponding parts throughout the drawings.

[0013] Figure 1 is a perspective view of a display device according to some embodiments.

[0014] Figure 2 is a block diagram of a system including a display device according to some embodiments.

[0015] Figure 3 is an isometric view of a display device according to some embodiments.

[0016] Figure 4 A chromaticity diagram is shown in accordance with some embodiments.

[0017] Figure 5 A display panel according to some embodiments is shown.

[0018] Figure 6 A plurality of light emitters are shown arranged in a plurality of emission regions of a display panel according to some embodiments.

[0019] Figure 7 A chromaticity diagram indicating color shifts according to some embodiments is shown.

[0020] Fig. 8A Represents a linearly reduced color gamut of light emitted from a display panel according to some embodiments.

[0021] Figure 8B Represents a linearly reduced color gamut of light emitted from a display panel according to some embodiments.

[0022] Figure 8C Represents the quadratically reduced color gamut of light emitted from a display panel according to some embodiments.

[0023] Fig.8D Represents the horizontally reduced color gamut of light emitted from a display panel according to some embodiments.

[0024] Fig. 8E An image displayed on a display panel according to some embodiments is shown.

[0025] Fig.9A A display panel having multiple light emitters configured to emit light of a uniform representative color in corresponding emission areas is shown in accordance with some embodiments.

[0026] Fig. 9B A display panel having a plurality of light emitters configured to emit light of one or more representative colors in corresponding emission areas is shown in accordance with some embodiments.

[0027] Fig. 9C A display panel having multiple emission areas with different densities of multiple light emitters is shown according to some embodiments.

[0028] Fig.9D Sub-pixels of a display panel according to some embodiments are shown.

[0029] Fig.9E and Fig.9F A display panel according to some embodiments is shown.

[0030] Fig. 10A A display panel having a one-dimensional display layout is shown according to some embodiments, the display panel comprising at least one linear array of a plurality of light emitters.

[0031] Fig. 10B A display panel having multiple emission areas with different densities of multiple light emitters is shown according to some embodiments.

[0032] Fig. 10C A display panel having multiple emission areas with different densities of multiple light emitters is shown according to some embodiments.

[0033] Fig. 10D A display panel according to some embodiments is shown having multiple light emitters in corresponding linear layers, the light emitters having different luminous efficacy.

[0034] Fig.10E A display panel having multiple light emitters in corresponding linear layers operating at different current densities is shown in accordance with some embodiments.

[0035] Fig.10F A display panel having multiple light emitters in corresponding linear layers operating at different current densities is shown in accordance with some embodiments.

[0036] Fig.11 is a flowchart illustrating a method of manufacturing a display device according to some embodiments.

[0037] Unless otherwise noted, the figures are not drawn to scale.

[0038] Detailed Description

[0039] The human eye has uneven color vision across the entire field of view. For example, the color sensing cones that allow for the perception of color are concentrated around the fovea of ​​the eye. In order to reduce the power consumption of head-mounted display devices, color foveated displays are used that have multiple emission areas to provide images in different color gamuts.

[0040] In a color foveated display, multiple light emitters arranged in different emission areas correspond to respective color gamuts. Such a display is configured by arranging light emitters with different properties (e.g., light emitter type, luminous efficiency, brightness, material, etc.) in different emission areas, adjusting the spacing between light emitters for different emission areas, and / or adjusting the current density of light emitters in different emission areas. As a result, the display reduces power consumption for computing, image processing, and display, while improving the luminous efficiency of the display and reducing the cost of manufacturing the display.

[0041] Reference will now be made to embodiments, examples of which are illustrated in the accompanying drawings. In the following description, numerous specific details are set forth in order to provide an understanding of the various described embodiments. However, it will be apparent to one of ordinary skill in the art that the various described embodiments may be implemented without these specific details. In other cases, well-known methods, processes, components, circuits, and networks are not described in detail in order to avoid unnecessarily obscuring various aspects of the embodiments.

[0042] It should also be understood that, although in some cases, the terms first, second, etc. are 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, a first area can be referred to as a second area, and similarly, a second area can be referred to as a first area without departing from the scope of the various embodiments described. Both the first area and the second area are areas, but they are not the same area.

[0043] The terms used in the description of the various described embodiments herein are only used for the purpose of describing specific embodiments and are not intended to be limiting. As used in the description of the various described embodiments and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are also intended to include plural forms. It should also be understood that the term "and / or" used herein refers to and includes any and all possible combinations of one or more related listed items. It should also be understood that when used in this specification, the terms "includes", "including", "comprises" and / or "comprises" specify the presence of stated features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof. The term "exemplary" is used in the sense of "serving as an example, instance or illustration" herein, rather than in the sense of "representing the best in the same category".

[0044] As used herein, a light emitter, pixel, or sub-pixel "having a particular color" means that the light emitter, pixel, or sub-pixel is "configured to provide light having a particular color." Typically, the color of light emitted by a light emitter, pixel, or sub-pixel depends on one or more materials (e.g., organic materials or inorganic materials, such as fluorescent materials or inorganic quantum wells or quantum dots, or semiconductor materials) included in the light emitter, pixel, or sub-pixel. For example, a light emitter, pixel, or sub-pixel configured to provide red includes aluminum gallium arsenide, gallium arsenide phosphide, aluminum gallium indium phosphide, and / or gallium phosphide; a light emitter, pixel, or sub-pixel configured to provide green includes aluminum gallium phosphide, aluminum gallium indium phosphide, and / or gallium phosphide; a light emitter, pixel, or sub-pixel configured to provide blue includes zinc selenide, indium gallium nitride, and / or silicon carbide.

[0045] The embodiments described herein may include an artificial reality system or be implemented in conjunction with an artificial reality system. Artificial reality is a form of reality that is adjusted in some way before being presented to a user, which may include, for example, virtual reality (VR), augmented reality (AR), mixed reality (MR), mixed reality, or some combination and / or derivative thereof. Artificial reality content may include fully generated content or generated content combined with captured (e.g., real world) content. Artificial reality content may include video, audio, tactile feedback, or some combination thereof, and any of which may be presented in a single channel or in multiple channels (such as stereoscopic video that produces a three-dimensional effect to the audience). In addition, in some embodiments, artificial reality may also be associated with applications, products, accessories, services, or some combination thereof for, for example, creating content in artificial reality and / or otherwise using it in artificial reality (e.g., performing activities in artificial reality). An artificial reality system that provides artificial reality content may be implemented on various platforms (including a head-mounted display (HMD) connected to a host computer system, an independent HMD, a mobile device or computing system, or any other hardware platform capable of providing artificial reality content to one or more viewers).

[0046] Figure 1 1 shows a display device 100 according to some embodiments. In some embodiments, the display device 100 is configured to be worn on the user's head (e.g., by having a display device such as Figure 1 When the display device 100 is configured to be worn on the user's head or included as part of a helmet, the display device 100 is referred to as a head-mounted display. Alternatively, the display device 100 is configured for placement near one or both eyes of the user at a fixed position, rather than being head-mounted (e.g., the display device 100 is mounted in a vehicle such as a car or airplane for placement in front of one or both eyes of the user). Figure 1 As shown, the display device 100 includes a display 110. The display 110 is configured to present visual content (eg, augmented reality content, virtual reality content, mixed reality content, or any combination thereof) to a user.

[0047] In some embodiments, the display device 100 includes the following reference Figure 2 In some embodiments, the display device 100 includes Figure 2 Additional components not shown.

[0048] Figure 2 is a block diagram of a system 200 according to some embodiments. Figure 2The system 200 shown includes a display device 205 (which corresponds to Figure 1 The display device 100 shown in the figure), the imaging device 235 and the input interface 240, each of which is coupled to the console 210. Figure 2 An example of a system 200 including one display device 205, an imaging device 235, and an input interface 240 is shown, but in other embodiments, any number of these components may be included in the system 200. For example, there may be multiple display devices 205, each display device 205 having an associated input interface 240 and monitored by one or more imaging devices 235, wherein each display device 205, input interface 240, and imaging device 235 communicate with the console 210. In alternative configurations, different components and / or additional components may be included in the system 200. For example, in some embodiments, the console 210 is connected to the system 200 via a network (e.g., the Internet), or is self-contained as part of the display device 205 (e.g., physically located inside the display device 205). In some embodiments, the display device 205 is used to create a mixed reality by adding a view of the real environment. Therefore, the display device 205 and system 200 described herein can deliver virtual reality, mixed reality, and augmented reality.

[0049] In some embodiments, Figure 1 As shown, display device 205 is a head mounted display that presents media to the user. The example of the media presented by display device 205 includes one or more images, videos, audio, or some combination thereof. In some embodiments, audio is presented via an external device (e.g., speaker and / or earphones), which receives audio information from display device 205, console 210, or both and presents audio data based on the audio information. In some embodiments, display device 205 immerses the user in a virtual environment.

[0050] In some embodiments, the display device 205 also acts as an augmented reality (AR) head-mounted device. In these embodiments, the display device 205 uses computer-generated elements (e.g., images, videos, sounds, etc.) to enhance the view of the physical real world environment. In addition, in some embodiments, the display device 205 can cycle between different types of operations. Therefore, based on instructions from the application engine 255, the display device 205 operates as a virtual reality (VR) device, an AR device, glasses, or some combination thereof (e.g., glasses without optical correction, glasses optically corrected for the user, sunglasses, or some combination thereof).

[0051] The display device 205 includes an electronic display 215, one or more processors 216, an eye tracking module 217, an adjustment module 218, one or more locators 220, one or more position sensors 225, one or more position cameras 222, a memory 228, an inertial measurement unit (IMU) 230, or a subset or superset thereof (e.g., a display device 205 having an electronic display 215, one or more processors 216, and a memory 228 without any other listed components). Some embodiments of the display device 205 have modules different from those described herein. Similarly, functions may be distributed among the modules in a manner different from that described herein.

[0052] One or more processors 216 (e.g., processing units or cores) execute instructions stored in memory 228. Memory 228 includes high-speed random access memory, such as DRAM, SRAM, DDR RAM, or other random access solid-state memory devices; and may include non-volatile memory, such as one or more magnetic disk storage devices, optical disk storage devices, flash memory devices, or other non-volatile solid-state storage devices. Memory 228, or alternatively a non-volatile memory device within memory 228, includes a non-transitory computer-readable storage medium. In some embodiments, memory 228 or a computer-readable storage medium of memory 228 stores programs, modules, and data structures, and / or instructions for displaying one or more images on electronic display 215.

[0053] Electronic display 215 displays images to the user based on data received from console 210 and / or processor 216. In various embodiments, electronic display 215 may include a single adjustable electronic display element or multiple adjustable electronic display elements (e.g., one display for each eye of the user).

[0054] In some embodiments, the display element includes one or more light-emitting devices and a corresponding emission intensity array. The emission intensity array is an array of electro-optical pixels, an array of optoelectronic pixels, an array of some other device that dynamically adjusts the amount of light emitted by each device, or some combination thereof. These pixels are placed behind one or more lenses. In some embodiments, the emission intensity array is an array of liquid crystal-based pixels in an LCD (liquid crystal display). Examples of light-emitting devices include: organic light-emitting diodes, active matrix organic light-emitting diodes, light-emitting diodes, some type of device that can be placed in a flexible display, or some combination thereof. The light-emitting device includes a device that can generate visible light (e.g., red, green, blue, etc.) for image generation. The emission intensity array is configured to selectively attenuate a single light-emitting device, a group of light-emitting devices, or some combination thereof. Alternatively, when the light-emitting device is configured to selectively attenuate a single emission device and / or a group of light-emitting devices, the display element includes an array of such light-emitting devices without a separate emission intensity array.

[0055] One or more lenses direct light from the array of light emitting devices (optionally via the emission intensity array) to a location within each eyebox and ultimately to the back of the user's retina. The eyebox is the area occupied by the eyes of a user (e.g., a user wearing the display device 205) located near the display device 205 for viewing images from the display device 205. In some cases, the eyebox is represented as a 10 mm x 10 mm square. In some embodiments, one or more lenses include one or more coatings, such as an anti-reflective coating.

[0056] In some embodiments, the display element includes an infrared (IR) detector array that detects IR light retro-reflected from the viewing user's retina, from the surface of the cornea, the lens of the eye, or some combination thereof. The IR detector array includes one IR sensor or multiple IR sensors, each of the multiple IR sensors corresponding to a different location of the viewing user's eye pupil. In alternative embodiments, other eye tracking systems may also be employed.

[0057] The eye tracking module 217 determines the position of each pupil of the user's eyes. In some embodiments, the eye tracking module 217 instructs the electronic display 215 to illuminate the viewing window with IR light (eg, via an IR emitting device in the display element).

[0058] A portion of the emitted IR light will pass through the pupil of the viewing user and reflect back from the retina toward the IR detector array, which is used to determine the position of the pupil. Alternatively, reflected light off the surface of the eye is also used to determine the position of the pupil. The IR detector array scans the retroreflections and identifies which IR emitting devices are active when the retroreflections are detected. The eye tracking module 217 can use the tracking lookup table and the identified IR emitting devices to determine the pupil position of each eye. The tracking lookup table maps the signals received on the IR detector array to positions in each window (corresponding to the pupil positions). In some embodiments, the tracking lookup table is generated via a calibration process (e.g., the user looks at various known reference points in the image, and the eye tracking module 217 maps the position of the user's pupil when looking at the reference points to the corresponding signals received on the IR tracking array). As described above, in some embodiments, the system 200 can use other eye tracking systems besides the embedded IR tracking system described above.

[0059] The adjustment module 218 generates an image frame based on the determined pupil position. In some embodiments, this sends discrete images to a display, which tiles the sub-images together so that a coherent stitched image will appear on the back of the retina. The adjustment module 218 adjusts the output of the electronic display 215 (i.e., the generated image frame) based on the detected pupil position. The adjustment module 218 instructs some parts of the electronic display 215 to pass image light to the determined pupil position. In some embodiments, the adjustment module 218 also instructs the electronic display not to pass image light to a position other than the determined pupil position. The adjustment module 218 can, for example, block and / or stop light emitting devices whose image light falls outside the determined pupil position, allow other light emitting devices to emit image light that falls within the determined pupil position, translate and / or rotate one or more display elements, dynamically adjust the curvature and / or refractive power of one or more active lenses in a lens (e.g., microlens) array, or some combination of these operations.

[0060] The optional locators 220 are objects that are located at specific locations on the display device 205 relative to each other and relative to specific reference points on the display device 205. The locators 220 can be light emitting diodes (LEDs), corner cube reflectors, reflective markers, a type of light source that contrasts with the operating environment of the display device 205, or some combination thereof. In embodiments where the locators 220 are active (i.e., LEDs or other types of light emitting devices), the locators 220 can emit light in the visible light band (e.g., about 400 nm to 750 nm), in the infrared band (e.g., about 750 nm to 1 mm), in the ultraviolet band (about 100 nm to 400 nm), in some other portion of the electromagnetic spectrum, or some combination thereof.

[0061] In some embodiments, the locator 220 is located below an outer surface of the display device 205 that is transparent to the wavelength of light emitted or reflected by the locator 220, or thin enough to not substantially attenuate the wavelength of light emitted or reflected by the locator 220. Additionally, in some embodiments, the outer surface or other portion of the display device 205 is opaque in the visible band of wavelengths of light. Thus, the locator 220 may emit light in the IR band below an outer surface that is transparent in the IR band but opaque in the visible band.

[0062] The IMU 230 is an electronic device that generates calibration data based on measurement signals received from one or more position sensors 225. The position sensor 225 generates one or more measurement signals in response to the movement of the display device 205. Examples of the position sensor 225 include one or more accelerometers, one or more gyroscopes, one or more magnetometers, another suitable type of sensor that detects movement, a type of sensor used for error correction of the IMU 230, or some combination thereof. The position sensor 225 can be located outside the IMU 230, inside the IMU 230, or some combination thereof.

[0063] Based on one or more measurement signals from one or more position sensors 225, the IMU 230 generates first calibration data indicating an estimated position of the display device 205 relative to the initial position of the display device 205. For example, the position sensor 225 includes a plurality of accelerometers for measuring translational motion (forward / backward, upward / downward, left / right) and a plurality of gyroscopes for measuring rotational motion (e.g., pitch, yaw, roll). In some embodiments, the IMU 230 samples the measurement signals quickly and calculates an estimated position of the display device 205 from the sampled data. For example, the IMU 230 integrates the measurement signals received from the accelerometers in time to estimate a velocity vector, and integrates the velocity vector in time to determine an estimated position of a reference point on the display device 205. Alternatively, the IMU 230 provides the sampled measurement signals to the console 210, which determines the first calibration data. The reference point is a point that can be used to describe the position of the display device 205. Although a reference point may generally be defined as a point in space; however, in practice, a reference point is defined as a point within the display device 205 (eg, the center of the IMU 230).

[0064] In some embodiments, the IMU 230 receives one or more calibration parameters from the console 210. As discussed further below, the one or more calibration parameters are used to maintain tracking of the display device 205. Based on the received calibration parameters, the IMU 230 can adjust one or more IMU parameters (e.g., sampling rate). In some embodiments, certain calibration parameters cause the IMU 230 to update the initial position of the reference point so that it corresponds to the next calibration position of the reference point. Updating the initial position of the reference point to the next calibration position of the reference point helps to reduce the cumulative error associated with the determined estimated position. The cumulative error (also known as drift error) causes the estimated position of the reference point to deviate from the actual position of the reference point over time.

[0065] The imaging device 235 generates calibration data based on the calibration parameters received from the console 210. The calibration data includes one or more images showing the observed positions of the locators 220, which are detectable by the imaging device 235. In some embodiments, the imaging device 235 includes one or more still cameras, one or more video cameras, any other device capable of capturing images including one or more locators 220, or some combination thereof. In addition, the imaging device 235 may include one or more filters (e.g., for increasing the signal-to-noise ratio). The imaging device 235 is configured to optionally detect light emitted or reflected from the locator 220 in the field of view of the imaging device 235. In embodiments where the locator 220 includes a passive element (e.g., a retroreflector), the imaging device 235 may include a light source that illuminates some or all of the locators 220, which retroreflect light toward the light source in the imaging device 235. The second calibration data is transmitted from the imaging device 235 to the console 210, and the imaging device 235 receives one or more calibration parameters from the console 210 to adjust one or more imaging parameters (e.g., focal length, focus, frame rate, ISO, sensor temperature, shutter speed, aperture, etc.).

[0066] The input interface 240 is a device that allows a user to send an action request to the console 210. An action request is a request to perform a specific action. For example, the action request may be to start or end an application, or to perform a specific action within an application. The input interface 240 may include one or more input devices. Example input devices include: a keyboard, a mouse, a game controller, data from brain signals, data from other parts of the human body, or any other suitable device for receiving an action request and transmitting the received action request to the console 210. The action request received by the input interface 240 may be transmitted to the console 210, and the console 210 performs an action corresponding to the action request. In some embodiments, the input interface 240 may provide tactile feedback to the user according to an instruction received from the console 210. For example, when an action request is received, tactile feedback is provided, or the console 210 transmits an instruction to the input interface 240 so that the input interface 240 generates tactile feedback when the console 210 performs an action.

[0067] The console 210 provides media to the display device 205 for presentation to the user based on information received from one or more of the imaging device 235, the display device 205, and the input interface 240. Figure 2 In the example shown, the console 210 includes an application store 245, a tracking module 250, and an application engine 255. Some embodiments of the console 210 have a Figure 2Similarly, the functionality described further below may be allocated among the components of console 210 in a manner different from that described here.

[0068] When application storage 245 is included in console 210, application storage 245 stores one or more applications executed by console 210. An application is a set of instructions that, when executed by a processor, is used to generate content for presentation to a user. The content generated by the processor based on the application may be responsive to input received from a user via movement of display device 205 or input interface 240. Examples of applications include: gaming applications, conferencing applications, video playback applications, or other suitable applications.

[0069] When the tracking module 250 is included in the console 210, the tracking module 250 calibrates the system 200 using one or more calibration parameters, and may adjust one or more calibration parameters to reduce errors in the determination of the position of the display device 205. For example, the tracking module 250 adjusts the focus of the imaging device 235 to obtain a more accurate position of the observed localizers on the display device 205. In addition, the calibration performed by the tracking module 250 also takes into account information received from the IMU 230. In addition, if tracking of the display device 205 is lost (e.g., the imaging device 235 loses sight of at least a threshold number of localizers 220), the tracking module 250 recalibrates part or all of the system 200.

[0070] In some embodiments, the tracking module 250 uses the second calibration data from the imaging device 235 to track the movement of the display device 205. For example, the tracking module 250 uses the observed locator to determine the position of the reference point of the display device 205 based on the second calibration data and the model of the display device 205. In some embodiments, the tracking module 250 also uses the position information from the first calibration data to determine the position of the reference point of the display device 205. In addition, in some embodiments, the tracking module 250 can use the first calibration data, the second calibration data, or some combination thereof to predict the future position of the display device 205. The tracking module 250 provides the estimated position of the display device 205 or the predicted future position to the application engine 255.

[0071] The application engine 255 executes an application within the system 200 and receives position information, acceleration information, velocity information, predicted future position, or some combination thereof of the display device 205 from the tracking module 250. Based on the received information, the application engine 255 determines the content to be provided to the display device 205 for presentation to the user. For example, if the received information indicates that the user has looked to the left, the application engine 255 generates content for the display device 205 that reflects the user's movement in the virtual environment. In addition, the application engine 255 performs an action within an application executed on the console 210 in response to an action request received from the input interface 240, and provides feedback to the user that the action is performed. The feedback provided may be visual or auditory feedback via the display device 205 or tactile feedback via the input interface 240.

[0072] Figure 3 3 is an isometric view of a display device 300 according to some embodiments. In some other embodiments, the display device 300 is part of some other electronic display (e.g., a digital microscope, etc.). In some embodiments, the display device 300 includes an array of light emitting devices 310 and one or more lenses 330. In some embodiments, the display device 300 also includes an emission intensity array and an IR detector array.

[0073] The light emitting device array 310 emits image light and optional IR light toward a viewing user. The light emitting device array 310 can be, for example, an LED array, a micro LED array, an OLED array, or some combination thereof. The light emitting device array 310 includes light emitting devices 320 that emit light in visible light (and optionally includes devices that emit light in IR). In some embodiments, the micro LEDs include LEDs having an emission area characterized by a representative size (e.g., diameter, width, height, etc.) of 100 μm or less (e.g., 50 μm, 20 μm, etc.). In some embodiments, the micro LEDs have a circular or rectangular emission area.

[0074] The emission intensity array is configured to selectively attenuate light emitted from the light emitting array 310. In some embodiments, the emission intensity array is composed of a plurality of liquid crystal cells or pixels, a group of light emitting devices, or some combination thereof. Each liquid crystal cell (or in some embodiments, a group of liquid crystal cells) is addressable to have a specific attenuation level. For example, at a given time, some liquid crystal cells can be set to no attenuation, while other liquid crystal cells can be set to maximum attenuation. In this way, the emission intensity array can control which portion of the image light emitted from the light emitting device array 310 is passed to one or more lenses 330. In some embodiments, the display device 300 uses the emission intensity array to facilitate providing image light to the location of the pupil 350 of the user's eye 340, and minimizes the amount of image light provided to other areas in the window.

[0075] One or more lenses 330 receive modified image light (e.g., attenuated light) from the emission intensity array (or directly from the emission device array 310) and are shifted by one or more beam shifters 360 and direct the shifted image light to the location of the pupil 350.

[0076] The optional IR detector array detects IR light that has been retroreflected from the retina of eye 340, the cornea of ​​eye 340, the lens of eye 340, or some combination thereof. The IR detector array includes a single IR sensor or multiple IR sensitive detectors (e.g., photodiodes). In some embodiments, the IR detector array is separate from the light emitting device array 310. In some embodiments, the IR detector array is integrated into the light emitting device array 310.

[0077] In some embodiments, the light emitting device array 310 and the emission intensity array constitute a display element. Alternatively, the display element includes the light emitting device array 310 (for example, when the light emitting device array 310 includes individually adjustable pixels) but does not include the emission intensity array. In some embodiments, the display element additionally includes an IR array. In some embodiments, in response to the determined pupil 350 position, the display element adjusts the emitted image light so that the light output by the display element is refracted by one or more lenses 330 toward the determined pupil 350 position (rather than toward other positions in the window).

[0078] Most of the power used to operate a head-mounted display device is used for (i) the computations required to render high color fidelity images, (ii) the data transmission for displaying the images, and (iii) the conversion of electrical energy to light for displaying the rendered images. The human eye has uneven color vision across the entire field of view. For example, color sensing cones are densely concentrated in the fovea centralis, which is responsible for foveal vision, and the number of color sensing cells decreases rapidly toward the peripheral areas of the eye's retina. In order to reduce the power consumption of the head-mounted display device, a color foveal display having multiple emission areas to provide images in multiple color gamuts is used. For example, the central emission area corresponding to the fovea of ​​the eye is configured to provide high color fidelity, while the peripheral emission areas corresponding to the peripheral areas of the eye's retina are configured to increase luminous efficiency and minimize power consumption (even at the expense of reduced color fidelity).

[0079] Figure 4 A chromaticity diagram 400 is shown in accordance with some embodiments.

[0080] Chromaticity diagram 400 represents human color perception in a two-dimensional diagram (e.g., the CIE 1931 xy chromaticity diagram). Figure 4 4. In FIG. 4, chromaticity diagram 400 has outer curved boundaries corresponding to spectral loci corresponding to various colors, where wavelengths are in nanometers.

[0081] In some embodiments, a color gamut is defined as a specific organization of colors (e.g., sRGB color gamut, Adobe RGB color gamut, CIELUV color gamut, etc.). In some embodiments, a color gamut is represented by a line or shape formed by connecting at least two colors on the chromaticity diagram 400 (e.g., red and blue, green and blue, red, green and blue, etc.). In some embodiments, a color gamut has a triangular shape (e.g., an equilateral triangle, an isosceles triangle, a scalene triangle, etc.) formed by connecting three color points (e.g., red, green, and blue) on the chromaticity diagram 400. In some embodiments, a color gamut has any other shape (e.g., a square, a rectangle, etc.). In some embodiments, different color gamuts have the same shape of different sizes or different shapes of the same or different sizes (e.g., the same or different areas). In some embodiments, at least two color gamuts represented in the same chromaticity diagram (e.g., chromaticity diagram 400) partially overlap each other in the chromaticity diagram 400.

[0082] exist Figure 4 In FIG. 4 , the chromaticity diagram 400 includes a first color gamut 410, a second color gamut 420, and a third color gamut 430 that are different from each other. Point 440 represents the center of the chromaticity diagram 400 corresponding to white. Figure 4In FIG. 4 , the first color gamut 410 has the same triangular shape as the second color gamut 420 which is larger than the first color gamut 410, and the first color gamut 410 is included in (or surrounded by) the second color gamut 420. Figure 4 , the first color gamut 410 and the third color gamut 430 have different triangular shapes, and the first color gamut 410 and the third color gamut 430 partially overlap each other (e.g., a portion of the first color gamut 410 is not included in the third color gamut 430, and a portion of the third color gamut 430 is not included in the first color gamut 410). Figure 4 As shown, the second color gamut 420 and the third color gamut 430 have different triangular shapes, and the second color gamut 420 and the third color gamut 430 partially overlap each other (for example, a portion of the second color gamut 420 is not included in the third color gamut 430, and a portion of the third color gamut 430 is not included in the second color gamut 420).

[0083] In some embodiments, the corresponding color gamut includes multiple colors formed by mixing at least two colors of the color gamut (e.g., reference colors). In chromaticity diagram 400, the color gamut includes multiple colors located inside or on a line of a shape formed by the reference colors. Figure 4 , the second color gamut 420 , which is larger than the first color gamut 410 , contains more colors than the first color gamut 410 .

[0084] Colors outside the first color gamut 410 are not displayable in an emission area configured to provide only colors within the first color gamut 410 (for example, an emission area using three types of LEDs, each type is configured to provide a corresponding color corresponding to a corresponding corner of the first color gamut 410, and colors outside the first color gamut 410 cannot be provided), colors outside the second color gamut 420 are not displayable in an emission area configured to provide only colors within the second color gamut 420 (for example, an emission area using three types of LEDs, each type is configured to provide a corresponding color corresponding to a corresponding corner of the second color gamut 420, and colors outside the second color gamut 420 cannot be provided), and colors outside the third color gamut 430 are not displayable in an emission area configured to provide only colors within the third color gamut 430 (for example, an emission area using three types of LEDs, each type is configured to provide a corresponding color corresponding to a corresponding corner of the third color gamut 430, and colors outside the third color gamut 430 cannot be provided). Therefore, a portion of the second color gamut 420 that does not overlap with the first color gamut 410 indicates a color that is not displayable in an emission region configured to provide only colors within the first color gamut 410. A portion of the first color gamut 410 that does not overlap with the second color gamut 420 indicates a color that is not displayable in an emission region configured to provide only colors within the second color gamut 420. Colors outside the third color gamut 430 are not displayable in an emission region configured to provide only colors within the third color gamut 430.

[0085] Figure 5 A display panel 500 is shown according to some embodiments.

[0086] In some embodiments, the display panel 500 corresponds to Figure 3 The light emitting device array 310 is shown. In some embodiments, the display panel 500 is coupled to the circuit board 550. The display panel 500 includes a first emission area 510, a second emission area 520, a third emission area 530, and a fourth emission area 540. Figure 5 Display panel 500 is shown having four emission regions, but display panel 500 is not limited to having four emission regions and may have fewer or more emission regions (eg, at least 2, 3, 5, 6, or 7 regions, etc.).

[0087] In some embodiments, the first emission region 510 is configured to provide an image having colors in a first color gamut (e.g., first color gamut 410) (e.g., for providing an image having colors in the first color gamut to the fovea of ​​a user's eye) and other emission regions (e.g., second emission region 520, third emission region 530, and fourth emission region 540) are configured to provide an image having colors in a color gamut different from the first color gamut of the first emission region 510 (e.g., for providing an image having colors in a color gamut different from the first color gamut to a peripheral vision area of ​​a user's eye). The second emission region 520 is different from the first emission region 510 and is mutually incompatible with the first emission region 510. Although Figure 5 The second emission region 520 is shown as a single continuous region, but in some embodiments, the second emission region 520 includes two or more separate second emission regions disposed adjacent to the first emission region 510. For example, although Figure 5 The second emission region 520 is shown surrounding the first emission region 510, but in some embodiments, two separate second emission regions (e.g., each having a linear shape) are located on opposite sides of the first emission region 510. The third emission region 530 is different from the second emission region 520 and is mutually exclusive with the second emission region 520. Figure 5 The third emission region 530 is shown as a single continuous region, but in some embodiments, the third emission region 530 includes two or more separate third emission regions disposed adjacent to the second emission region 520. For example, although Figure 5 The third emission region 530 is shown surrounding the second emission region 520, but in some embodiments, two separate third emission regions (e.g., each having a linear shape) are located on opposite sides of the second emission region 520. The fourth emission region 540 is different from the third emission region 530 and is mutually exclusive with the third emission region 530. Figure 5 The fourth emission region 540 is shown as a single continuous region, but in some embodiments, the fourth emission region 540 includes two or more separate fourth emission regions disposed adjacent to the third emission region 530. For example, although Figure 5 Fourth emission region 540 is shown surrounding third emission region 530 , but in some embodiments, two separate fourth emission regions (eg, each having a linear shape) are located on opposite sides of third emission region 530 .

[0088] In some embodiments, Figure 5 As shown, the first emission area 510 is surrounded by the second emission area 520 , the second emission area 520 is surrounded by the third emission area 530 , and the third emission area 530 is surrounded by the fourth emission area 540 .

[0089] In some embodiments, first emission region 510 occupies no more than 50% of the display area of ​​display panel 500. In some embodiments, first emission region 510 occupies less than 20%, less than 10%, or less than 5% of the display area of ​​display panel 500.

[0090] In some embodiments, the second emission region 520 contacts the first emission region 510. In some embodiments, the third emission region 530 contacts the second emission region 520. In some embodiments, the fourth emission region 540 contacts the third emission region 530.

[0091] In some embodiments, the second emission region 520 is different from and separated from the first emission region 510. In some embodiments, the third emission region 530 is different from and separated from the first emission region 510 and the second emission region 520. In some embodiments, the fourth emission region 540 is different from and separated from the first emission region 510, the second emission region 520, and the third emission region 530.

[0092] In some embodiments, the display panel 500 includes a plurality of light emitters corresponding to the first color gamut arranged in the first emission region 510, and a plurality of light emitters corresponding to the second color gamut arranged in the second emission region 520. In some embodiments, the display panel 500 includes a plurality of light emitters corresponding to the third color gamut in the third emission region 530, and a plurality of light emitters corresponding to the fourth color gamut in the fourth emission region 540. As described above, the first color gamut, the second color gamut, the third color gamut, and the fourth color gamut are different from each other (for example, the first color gamut and the second color gamut have the same shape with different sizes in the chromaticity diagram 400, or the first color gamut and the second color gamut have different shapes in the chromaticity diagram 400).

[0093] Multiple light emitters in each emission area (e.g., the first emission area 510, the second emission area 520, the third emission area 530, the fourth emission area 540, etc.) are configured to emit light of a representative color within the corresponding color gamut (e.g., each type of light emitter in the corresponding emission area is configured to provide light of a corresponding representative color corresponding to an angle of the corresponding color gamut). For example, one or more light emitters in the first emission area 510 are configured to emit light having a first color (e.g., red) within the first color gamut, one or more light emitters in the first emission area 510 are configured to emit light having a second color (e.g., green) different from the first color within the first color gamut, and one or more light emitters in the first emission area 510 are configured to emit light having a third color (e.g., blue) different from the first color and the second color within the first color gamut.

[0094] In some embodiments, a plurality of light emitters in the first emission region 510 are configured to emit light having a color of a first color gamut, and a plurality of light emitters in the second emission region 520 are configured to emit light having a color of a second color gamut. In some embodiments, a plurality of light emitters in the same emission region (e.g., a plurality of light emitters in the first emission region 510 or a plurality of light emitters in the second emission region 520, etc.) provide light of at least two different colors different from each other within their respective color gamuts. For example, a plurality of light emitters in the first emission region 510 include a first group of two or more light emitters having a first representative color (e.g., providing light having a first representative color, such as red light) and a second group of two or more light emitters having a second representative color different from the first representative color (e.g., providing light having a second representative color, such as blue light). In some embodiments, the first representative color and the second representative color are within the first color gamut. In some embodiments, a plurality of light emitters in the first emission region 510 include two or more light emitters having colors different from the first representative color and the second representative color (e.g., providing light having colors different from the first representative color and the second representative color, such as providing green light). In some embodiments, the plurality of light emitters in the second emission region 520 include a third group of one or more light emitters having a third representative color (e.g., providing light having a third representative color, such as yellow light) and a fourth group of one or more light emitters having a fourth representative color different from the third representative color (e.g., providing light having a fourth representative color, such as cyan light). The number of groups of the plurality of light emitters in each emission region is not limited to two, and may be more than two (e.g., three, four, five, etc.).

[0095] In some embodiments, at least one of the plurality of light emitters in the first emission region 510 is configured to emit light having a representative color that is different from a representative color of at least one of the plurality of light emitters in the second emission region 520. For example, the third representative color of the third group of one or more light emitters is different from the first representative color of the first group of two or more light emitters or the second representative color of the second group of two or more light emitters, and in some embodiments, the fourth representative color of the fourth group of one or more light emitters is the same as the first representative color of the first group of two or more light emitters or the second representative color of the second group of two or more light emitters.

[0096] In some embodiments, even if the first color gamut is different from the second color gamut, the first color gamut partially overlaps with the second color gamut in the chromaticity diagram (e.g., as shown in FIG. Figure 4 400), or the first color gamut is included in the second color gamut (e.g., as shown in FIG. Figure 4 4 and 5). In the chromaticity diagram shown, there is a first color gamut 410 and a second color gamut 420).

[0097] In some embodiments, at least one of the plurality of light emitters in the first emission region 510 is configured to emit light having the same hue as at least one of the plurality of light emitters in the second emission region 520. For example, the hue of the fourth representative color of the fourth group of one or more light emitters is the same as the hue of the second representative color of the second group of two or more light emitters.

[0098] In some embodiments, at least one light emitter of the plurality of light emitters in the first emission region 510 is configured to emit light having the same peak wavelength as at least one light emitter of the plurality of light emitters in the second emission region 520 .

[0099] In some embodiments, corresponding light emitters of corresponding groups (e.g., a first group of two or more light emitters, a second group of two or more light emitters, etc.) have emission wavelengths within the same wavelength range. In some embodiments, the wavelength range is defined as the range between the longest wavelength and the shortest wavelength of the corresponding light emitters in the two or more light emitters. In some embodiments, two or more light emitters of the first group have emission wavelengths within a first wavelength range (e.g., 610-700 nm). For example, one of the two or more light emitters of the first group can be configured to emit light having the shortest wavelength of the first wavelength range (e.g., 610 nm), while another light emitter in the first group can be configured to emit light having the longest wavelength of the first wavelength range (e.g., 700 nm).

[0100] In some embodiments, at least two groups of light emitters in the same emission area (e.g., two or more light emitters of the first group and two or more light emitters of the second group in the first emission area 510, or one or more light emitters of the third group and one or more light emitters of the fourth group in the second emission area 520) have wavelength ranges different from each other. In some embodiments, the two or more light emitters of the first group have emission wavelengths within a first wavelength range (e.g., 610-700 nm), and the two or more light emitters of the second group have emission wavelengths within a second wavelength range (e.g., 710-750 nm) different from the first wavelength range. In some embodiments, the second wavelength range is incompatible with the first wavelength range. In some embodiments, the one or more light emitters of the third group have emission wavelengths within a third wavelength range (e.g., 500-560 nm), and the one or more light emitters of the fourth group have emission wavelengths within a fourth wavelength range (e.g., 430-490 nm) different from the third wavelength range. In some embodiments, the fourth wavelength range is incompatible with the third wavelength range.

[0101] In some embodiments, light emitters in at least two groups in the same emission region have wavelength ranges that partially overlap with each other. In some embodiments, a first wavelength range (e.g., 610-700 nm) is completely included in a second wavelength range (e.g., 600-780 nm). Alternatively, the first wavelength range (e.g., 610-700 nm) partially overlaps with the second wavelength range (e.g., 640-750 nm). In this case, at least one light emitter of the first group may have the same wavelength (e.g., 650 nm) as at least one light emitter of the second group.

[0102] In some embodiments, at least two groups of light emitters in different emission regions (e.g., two or more light emitters of a first group in first emission region 510, and one or more light emitters of a third group in second emission region 520) have wavelength ranges different from each other. In some embodiments, the first wavelength range (e.g., 610-700 nm) is different from the third wavelength range (e.g., 500-560 nm) and the fourth wavelength range (e.g., 480-580 nm). In some embodiments, the second wavelength range (e.g., 640-750 nm) is different from the third wavelength range (e.g., 500-560 nm) and the fourth wavelength range (e.g., 480-580 nm).

[0103] In some embodiments, at least two groups of light emitters in different emission regions have wavelength ranges that completely or partially overlap with each other. In some embodiments, the third wavelength range (e.g., 580-620 nm) partially overlaps with the first wavelength range (e.g., 610-700 nm), and the fourth wavelength range (e.g., 600-640 nm) partially overlaps with the second wavelength range (e.g., 640-750 nm). In this case, at least one light emitter of the first group may have the same wavelength (e.g., 615 nm) as at least one light emitter of the third group.

[0104] Figure 5 The right hand side of shows an enlarged view of a corresponding pixel among a plurality of pixels in the first emission region 510, the second emission region 520, and the third emission region 530. In some embodiments, the corresponding pixel includes a sub-pixel combination to provide (light having) a color of (having) each color gamut (e.g., a first color gamut, a second color gamut, or a third color gamut, etc.). In some embodiments, the sub-pixel combination includes two or more sub-pixels. For example, a single pixel includes two or more sub-pixels for providing two or more colors (e.g., a red sub-pixel, a green sub-pixel, and a blue sub-pixel for an RGB pixel). In some embodiments, each sub-pixel includes a single light emitter, and two or more light emitters corresponding to the sub-pixel combination are arranged in the corresponding emission region. In some embodiments, the sub-pixel combination having two or more colors corresponds to the peak wavelength of the two or more light emitters. In some embodiments, the sub-pixel layout of the sub-pixel combination is an m×m matrix arrangement (e.g., a 2×2 matrix, a 3×3 matrix, etc.), an m×n matrix arrangement (where m is different from n) (e.g., a 3×2 matrix, a 2×3 matrix, etc.), a linear arrangement, a triangular arrangement, or any other arrangement corresponding to other shapes (e.g., a rectangle, a hexagon, etc.).

[0105] exist Figure 5, the sub-pixel combination of each pixel includes four sub-pixels arranged in a 2×2 matrix. In some embodiments, pixel 511 of the first emission area 510 includes a first sub-pixel combination of sub-pixels 512, 514, 516, and 518. In some embodiments, pixel 521 of the second emission area 520 includes a second sub-pixel combination of sub-pixels 522, 524, 526, and 528, and pixel 531 of the third emission area 530 includes a third sub-pixel combination of sub-pixels 532, 534, 536, and 538. As described above, multiple light emitters corresponding to different color gamuts are used for different emission areas, so that pixel 511 has a different color gamut from pixel 521 and pixel 531 (for example, pixel 511 has a relatively higher color gamut than pixel 521 and pixel 531). In some embodiments, pixel 521 has a different color gamut from pixel 531 (for example, pixel 521 has a relatively higher color gamut than pixel 531).

[0106] In some embodiments, each subpixel of a subpixel combination has a unique color (e.g., each subpixel of a subpixel combination has a different hue). For example, subpixels 512, 514, 516, 518 of a first subpixel combination have four different hues (e.g., subpixel 512 has red, subpixel 514 has yellow, subpixel 516 has green, and subpixel 518 has blue). In some embodiments, at least two subpixels of a subpixel combination have the same color. For example, subpixel 514 and subpixel 516 may have the same color (e.g., green, etc.), while subpixel 512 and subpixel 518 have two different colors (e.g., red and blue) that are different from the colors of subpixels 514 and 516.

[0107] In some embodiments, the subpixel combinations in different emission areas are different from each other. In some embodiments, one or more subpixels of the first subpixel combination correspond to a different hue than one or more subpixels of the second subpixel combination. For example, subpixels 522, 524, 528 of the second subpixel combination correspond to the same hue as subpixels 512, 514, 518 corresponding to the first subpixel combination, respectively, and subpixel 526 of the second subpixel combination corresponds to a hue different from the peak wavelength of subpixel 516 corresponding to the first subpixel combination (for example, subpixel 522 has the same peak wavelength as subpixel 512, subpixel 524 has the same peak wavelength as subpixel 514, subpixel 528 has the same peak wavelength as subpixel 518, and subpixel 526 has the same peak wavelength as subpixel 516). Alternatively, sub-pixels 522 and 528 of the second sub-pixel combination may correspond to a hue different from the hue corresponding to sub-pixels 512 and 518 of the first sub-pixel combination (e.g., the peak wavelength corresponding to sub-pixel 522 is different from, for example, shorter than, the peak wavelength corresponding to sub-pixel 512, or the peak wavelength corresponding to sub-pixel 528 is different from (such as longer than) the peak wavelength corresponding to sub-pixel 518), while in some embodiments, sub-pixels 524 and 526 have the same hue as that of sub-pixels 514 and 516.

[0108] In some embodiments, the display device is configured to receive color information of pixels in a plurality of emission areas. In some embodiments, the display device is configured to cause one or more light emitters of the corresponding pixel to emit light based on the color information of the corresponding pixel (e.g., the color information indicates a color within the corresponding color gamut of the corresponding pixel). In some embodiments, the display device is configured to obtain new color information of the corresponding pixel by processing the received color information so that the new color information of the corresponding pixel indicates a color within the corresponding color gamut. For example, the display device is configured to receive first color information of a pixel (e.g., pixel 511) in a first emission area 510 and second color information of a pixel (e.g., pixel 521) in a second emission area 520. In some embodiments, the display device is configured to process the second color information to obtain third color information based on at least the color gamut of the second emission area 520 (e.g., mapping the color indicated by the second color information to another color within the second color gamut) based on a determination that the color indicated by the second color information is outside the color gamut of the second emission area (e.g., the second color gamut). For example, the display device maps the first color indicated by the second color information to a second color having the same hue as the first color and within the color gamut of the second emission area 520, and prepares third color information so that the third color information indicates the second color. The display device is configured to cause one or more light emitters (e.g., light emitters corresponding to sub-pixel 512) of a pixel in the second emission area 520 to emit light based on the third color information instead of the second color information. Alternatively, the display device is configured to cause one or more light emitters of a pixel (e.g., pixel 511) in the first emission area 510 to emit light based on the first color information without processing the first color information (e.g., determining that the color indicated by the first color information is within the color gamut of the first emission area).

[0109] In some embodiments, light emitters with different luminous efficiencies are arranged in different emission areas. In some embodiments, the luminous efficiency varies based on the representative color (or hue or peak wavelength) of the light emitter. In some cases, the luminous efficiency of the light emitter increases as the peak wavelength increases to a specific wavelength (e.g., 540nm), and has a maximum luminous efficiency at a specific wavelength. Then, the luminous efficiency decreases as the peak wavelength further increases above the specific wavelength. In some embodiments, a corresponding light emitter in the first group of two or more light emitters has a luminous efficiency different from the luminous efficiency of a corresponding light emitter in the third group of one or more light emitters. In some embodiments, a corresponding light emitter in the second group of two or more light emitters has a luminous efficiency different from the luminous efficiency of a corresponding light emitter in the fourth group of one or more light emitters. In some embodiments, the first emission region 510 includes a plurality of light emitters having a lower luminous efficiency (e.g., than the plurality of light emitters in the second emission region 520), and the peripheral emission regions (e.g., the second emission region 520, the third emission region 530, the fourth emission region 540, etc.) include a plurality of light emitters having a higher luminous efficiency (e.g., than the plurality of light emitters in the first emission region 510). In some embodiments, the luminous efficiency of a corresponding light emitter in the first group of two or more light emitters is less than the luminous efficiency of a corresponding light emitter in the third group of one or more light emitters. In some embodiments, the luminous efficiency of a corresponding light emitter in the second group of two or more light emitters is less than the luminous efficiency of a corresponding light emitter in the fourth group of one or more light emitters. In some embodiments, the luminous efficiency of a corresponding light emitter is determined based on the material of the corresponding light emitter. In some embodiments, at least two light emitters having the same peak wavelength among the multiple light emitters in the first emission region 510 have different luminous efficiencies based on the materials of the at least two light emitters (for example, sub-pixel 511 has a first luminous efficiency, sub-pixel 512 has a second luminous efficiency different from the first luminous efficiency, and sub-pixel 511 and sub-pixel 512 both have the same peak wavelength).

[0110] Figure 6 Schematic diagram of an arrangement on a display panel (eg, Figure 5 The display panel 500 shown has multiple light emitters in multiple emission areas.

[0111] In some embodiments, Figure 6As shown, the corresponding emission areas have different densities of light emitters. In some embodiments, the density of light emitters in the emission area is determined by the distance between adjacent (e.g., adjacent) light emitters in the emission area. Light emitter 610 is arranged in a first emission area (e.g., first emission area 510), light emitter 620 is arranged in a second emission area (e.g., second emission area 520), and light emitter 630 is arranged in a third emission area (e.g., third emission area 530). Light emitter 540 is arranged in a fourth emission area (e.g., fourth emission area 540). The first emission area is configured to provide high resolution and high color fidelity, while other emission areas (e.g., second emission area 520, third emission area 530, fourth emission area 540, etc.) are configured to provide a lower resolution than the first emission area. For example, two adjacent light emitters of light emitter 610 arranged in the first emission area are spaced apart from each other by a distance less than or equal to 5 μm. Two adjacent light emitters of light emitter 620 arranged in the second emission area are spaced apart from each other by a distance of 10 μm. Two adjacent light emitters of light emitter 630 arranged in the third emission region are spaced apart from each other by a distance greater than 10 μm. At least two adjacent light emitters of light emitter 640 arranged in the fourth emission region are spaced apart from each other by a distance greater than the distance between two adjacent light emitters in the third emission region.

[0112] In some embodiments, the size of the corresponding light emitter in the plurality of light emitters in at least one peripheral emission region (e.g., the second emission region 520, the third emission region 530, the fourth emission region 540, etc.) is greater than the size of the corresponding light emitter in the first emission region 610. Figure 6 As shown, the size of light emitter 640 is larger than the size of light emitter 630. The size of light emitter 630 is larger than the size of light emitter 620. The size of light emitter 610 in the first emission region is smaller than the size of light emitter 620.

[0113] Figure 7 A chromaticity diagram indicating color shifts according to some embodiments is shown.

[0114] Figure 7 The chromaticity diagram shown is similar to Figure 4 The chromaticity diagram 400 shown, except in some embodiments Figure 7 For the sake of brevity, the above reference is not repeated here. Figure 4 A detailed description of the chromaticity diagram and color gamut is described.

[0115] In some embodiments, the peak wavelength of the corresponding light emitter moves according to the current density of the corresponding light emitter. Based on the current density of the corresponding light emitter, the peak wavelength moves to a shorter peak wavelength or a longer peak wavelength. For example, when the light emitter is driven at a higher current density, the peak wavelength of the light emitter corresponding to the blue-green color moves to a shorter peak wavelength (e.g., toward blue). Alternatively, when the light emitter is driven at a lower current density, the peak wavelength of the light emitter corresponding to the blue-green color moves to a longer peak wavelength (e.g., toward green). In another example, when the light emitter is driven at a higher current density, the peak wavelength of the light emitter corresponding to the red color moves to a longer peak wavelength (e.g., toward deep red). Alternatively, when the light emitter is driven at a lower current density, the peak wavelength of the light emitter corresponding to the red color moves to a shorter peak wavelength (e.g., toward orange).

[0116] like Figure 7 As shown, arrows 710 and arrows 720 indicate the peak wavelength shift caused by changing the current density of the light emitter. The first peak wavelength of the light emitter operating at a first current density corresponds to the color indicated by point 712 in the first color gamut 410. When the light emitter is driven at a second current density different from the first current density, the first peak wavelength moves to a second peak wavelength corresponding to the color indicated by point 714. Therefore, the light emitter is able to emit light corresponding to a second color gamut 420 outside the first color gamut 410 (by adjusting the current density of the light emitter). When the light emitter is driven at a third current density different from the first current density, the first peak wavelength moves to a third peak wavelength corresponding to the color indicated by point 716. Therefore, the light emitter is able to emit light outside the first color gamut 410.

[0117] In some embodiments, a display panel (eg, Figure 5 In some embodiments, the light emitters in different emission regions (e.g., first emission region 510, second emission region 520, third emission region 530, fourth emission region 540, etc.) of the display panel 500 shown in the figure operate at different current densities to provide colors of different color gamuts. In some embodiments, the corresponding light emitters of the first group of two or more light emitters in the first emission region (e.g., first emission region 510) operate at a first current density (e.g., N1 A / cm 2 In some embodiments, a corresponding light emitter in a third group of one or more light emitters in a second emission region (eg, second emission region 520) is operated at a second current density N2 A / cm2 different from the first current density. 2 In some embodiments, N1 is smaller than N2 (eg, smaller than N2 by 50%, 30%, 20%, or 10% of N2).

[0118] In some embodiments, a display panel (eg, Figure 5 The display panel 500 shown is configured to adjust the current density of at least one light emitter. In some embodiments, the display panel is configured to provide a first current density to a first group of two or more light emitters in a first emission region (e.g., first emission region 510), and the display panel is configured to provide a second current density to a third group of two or more light emitters in a second emission region at a first time and a third current density different from the second current density at a second time different from the first time.

[0119] In some embodiments, the display panel is configured to provide different current densities for at least two light emitters having different representative colors (e.g., peak wavelengths) in the same emission region. In some embodiments, the display panel is configured to provide a first current density for a first group of two or more light emitters having a first representative color (e.g., first peak wavelength) in a first emission region (e.g., first emission region 510), and to provide a second current density different from the first current density for a second group of two or more light emitters having a second representative color (e.g., second peak wavelength) in the first emission region.

[0120] In some embodiments, in order to reduce the manufacturing and assembly complexity of the display panel, a single light emitter (or light emitters of the same type) is used to provide light with different peak wavelengths (for example, a single light emitter provides light with a peak wavelength corresponding to green at a first time, and provides light with a peak wavelength corresponding to blue at a second time different from the first time). In some embodiments, the peak wavelength of the light emitter is moved by adjusting the current density. For example, when the display panel provides a first current density to the light emitter, the light emitter emits light with a first peak wavelength (for example, a peak wavelength corresponding to green or cyan). When the display panel provides a second current density different from the second current density to the light emitter, the light emitter emits light with a second peak wavelength different from the second peak wavelength (for example, a peak wavelength corresponding to blue or green-blue). In some embodiments, the display device includes a uniform array of light emitters (for example, light emitters of the same type arranged in an array, without any different types of scattered light emitters). In some embodiments, the same current density is provided to the light emitters in the uniform array (so that the light emitters in the uniform array move their peak wavelengths simultaneously). In some embodiments, different current densities are provided to different light emitters of the uniform array (e.g., a first current density is provided to a first subset of light emitters of the uniform array, and a second current density is provided to a second subset of light emitters of the uniform array). In some embodiments, at least two uniform arrays (having the same configuration) are arranged in different emission areas (e.g., a first uniform array in the first emission area 510 and a second uniform array in the second emission area 520). When the display panel provides different current densities to different emission areas, at least two uniform arrays in different emission areas emit light corresponding to different colors.

[0121] In some embodiments, an array of at least two light emitters has different electrical contact sizes for the at least two light emitters (e.g., a first light emitter has a first contact size and a second light emitter has a second contact size different from the first contact size). In some embodiments, when the same current is provided, a uniform array with a small electrical contact size operates at a high current density, while a uniform array with a large electrical contact size operates at a low current density. Thus, by using electrical contacts of different sizes, the current density of the light emitters can be adjusted.

[0122] In some embodiments, multiple light emitters configured to emit light with different brightness are arranged in different emission areas. In some embodiments, multiple light emitters are configured to provide different brightness in different emission areas. For example, the brightness of light emitted by multiple light emitters in a first emission area (e.g., first emission area 510) is different from the brightness of light emitted by multiple light emitters in a second emission area (e.g., second emission area 520).

[0123] In some embodiments, the color gamut of the light emitted by the second emission region (e.g., the peripheral region) is reduced by color gamut weighting, examples of which are described below. In some embodiments, the brightness of the light emitted by the second emission region is reduced by color gamut weighting. In some embodiments, the average brightness of the light emitted by the second emission region is not reduced by color gamut weighting.

[0124] In some cases, the brightness of the light emitted by the corresponding pixel is represented by a white value, which is determined based on the brightness value of the color component of the corresponding pixel. In some embodiments, the white value indicates the average value of the brightness value of the color component (e.g., red, green and blue of the RGB color domain, cyan, magenta, yellow and black of the CMYK color domain, etc.). In some embodiments, the brightness value varies from 0 to 255 (for the corresponding color component). For example, a brightness value of 0 (zero) indicates that there is no light emitted by the light emitter corresponding to the corresponding color component, and a brightness value of 255 indicates the full brightness of the light emitted by the light emitter corresponding to the corresponding color component. In some embodiments, R, G, B values ​​are used to represent the brightness values ​​of the light of the three color components of red, green and blue. R represents the brightness value of the first basic color component (e.g., the red component), G represents the brightness value of the second basic color component (e.g., the green component), and B represents the brightness value of the third basic color component (e.g., the blue component). For example, the brightness value of pure green is represented as (0, 255, 0). In some embodiments, the white value W is determined using the following equation (1).

[0125]

[0126] The reduced brightness values ​​Rr, Gr and Br (for the three color components) are determined based on the following equation (2):

[0127] Rr=W+(RW)*Wt,

[0128] Gr=W+(GW)*Wt,

[0129] Br=W+(BW)*Wt (2)

[0130] Wherein Wt represents a weight value (eg, 0.5), also referred to herein as a color gamut weight value or a color gamut weight.

[0131] In some embodiments, the display device receives a brightness value (or data, such as image data, from which the brightness values ​​of individual pixels can be obtained) and, for pixels in a first emission area, emits light based on the received brightness value and, for pixels in a second emission area, emits light based on a reduced brightness value.

[0132] Although this example describes color gamut weighting in two discrete emission regions (e.g., a first emission region and a second emission region), a similar color gamut weighting method can be used on three or more emission regions. In addition, a similar color gamut weighting method can be used with gradually changing weight values, as described below.

[0133] Fig. 8A Represents a linearly reduced color gamut of light emitted from a display panel according to some embodiments.

[0134] In some embodiments, a display panel (eg, display panel 500) includes a plurality of emission regions. Fig. 8A In some embodiments, the color gamut of light emitted from the display panel (depicted using the brightness of the corresponding area) varies linearly from a central area of ​​the display panel (e.g., first emission area 510) to one or more corner areas (e.g., one or more emission areas located on one or more edges of the display panel). In some embodiments, the high color gamut area (e.g., depicted as having the highest brightness) Fig. 8A The central area of ​​, or the first emission area 510, etc.) corresponds to the chromaticity diagram (eg, Figure 4 In some embodiments, the maximum color gamut (e.g., the second color gamut 420) in the chromaticity diagram 400 in FIG. Fig. 8A In some embodiments, the gamut weight value decreases linearly from 1.0 at the center (100% of the maximum gamut size) to 0.0 at the corners (0% of the maximum gamut size). As described above, the luminance values ​​of the individual pixels (color components) calculated based on equations (1) and (2) are used to provide light with a reduced gamut.

[0135] Figure 8B Represents a linearly reduced color gamut of light emitted from a display panel according to some embodiments.

[0136] Figure 8B Similar to Fig. 8A , except that the minimum color gamut weight value is capped at 0.5. Therefore, the color gamut of light emitted from the display panel (e.g., display panel 500) changes linearly from the central area (e.g., first emission area 510) with a color gamut weight of 1.0 to the angle with a color gamut weight of 0.5.

[0137] Figure 8C represents a quadratically reduced color gamut of light emitted from a display panel according to some embodiments.

[0138] Figure 8C Similar to Figure 8B, except that the color gamut is reduced quadratically (e.g., according to a quadratic equation). Figure 8C The minimum color gamut weight is capped at 0.5. Figure 8C Also shown is a position between the center region and the corner (e.g., the midpoint between the center and the corner) where the gamut weight is reduced to a gamut weight of 0.5. In some embodiments, within the outer emission region (outside the position where the gamut weight has reached 0.5), the minimum gamut weight is used throughout the outer emission region.

[0139] Fig.8D Represents a horizontally reduced color gamut of light emitted by a display panel according to some embodiments.

[0140] Fig.8D Similar to Figure 8C , except for the color gamut in Fig.8D The horizontal decreases, while Figure 8C The displayed color gamut decreases radially from the central area.

[0141] In some embodiments, the display panel includes a plurality of emission areas. In some embodiments, a first emission area in the plurality of emission areas corresponds to Fig.8D In some embodiments, the central area of ​​the display panel is located between one or more second emission areas disposed adjacent to the first emission area. In some embodiments, one or more third emission areas are disposed adjacent to the one or more second emission areas. For example, a corresponding second emission area of ​​one or more second emission areas is located between the first emission area and a corresponding third emission area of ​​the one or more third emission areas. In some embodiments, the first emission area is the brightest area in the display panel corresponding to the maximum color gamut in a chromaticity diagram (e.g., chromaticity diagram 400). Fig.8D As shown, the color gamut of light emitted from the display panel decreases according to a horizontal quadratic function starting from the first emission area.

[0142] Although in Figure 8A-8D Brightness is used in the description of the variation in the color gamut of light emitted by pixels in various regions, but in some embodiments, the average brightness of light emitted by pixels in various regions will not be affected by the reference Figure 8A-8D The color gamut described changes with weighting.

[0143] Fig. 8E An image displayed on a display panel according to some embodiments is shown.

[0144] Fig. 8E The first image 800 on the left is an image without gamut weighting, while Fig. 8E The second image 810 on the right is a corresponding image obtained by applying color gamut weighting to the first image 800. When obtaining the second image 810, the above reference Figure 8BDescribes the color gamut weighted distribution.

[0145] In some embodiments, the display panel includes multiple emission areas to provide images of different color gamuts, as described above with reference to Figure 4-8E described. Figure 9A-9D A display panel 900 is shown having a two-dimensional display layout including multiple emission areas according to some embodiments.

[0146] Fig.9A FIG. 9 shows a display panel 900 having a plurality of light emitters configured to emit light of corresponding performance distribution in corresponding emission areas according to some embodiments. Fig.9A As shown, configuring the first emission region 910 (e.g., a central region) to provide light of a first hue distribution (e.g., placing light emitters having a first peak wavelength close to a target peak wavelength), and configuring the second emission region 920 (e.g., a peripheral region) to provide light of a second hue distribution (e.g., placing light emitters having a second peak wavelength further away from the target peak wavelength than the first peak wavelength) allows light emitters of the second hue distribution to be used in the display panel 900 without compromising the color display quality of the display panel as perceived by a user. In some cases, the third emission region 930 (e.g., another peripheral region) is configured to provide light of a third hue distribution (e.g., placing light emitters having a third peak wavelength further away from the target peak wavelength than the second peak wavelength).

[0147] exist Fig.9A In the embodiment, the display panel 900 (e.g., the display panel 500) has a two-dimensional layout including a first emission area 910 (e.g., corresponding to the first emission area 510), a second emission area 920 (e.g., corresponding to the second emission area 520), and a third emission area 930 (e.g., corresponding to the third emission area 530). Fig.9A The display panel 900 is shown to have three emission regions, but the display panel 900 is not limited to having three emission regions, but may have fewer or more emission regions (e.g., at least 2, 3, 5, 6, or 7 regions, etc.). Fig.9A In the embodiment, a plurality of light emitters are arranged at the same distance in corresponding emission areas of the display panel 900.

[0148] In some embodiments, multiple light emitters in corresponding emission regions are configured to emit light of the same color gamut. In some embodiments, multiple light emitters in first emission region 910 are configured to emit light within a first color gamut.

[0149] In order to provide images in different color gamuts, such as reference Figure 4-8EAs described, multiple light emitters in different emission areas correspond to different color gamuts. In some embodiments, multiple light emitters in the first emission area 910 correspond to a first color gamut. In some embodiments, multiple light emitters in the second emission area 920 correspond to a second color gamut different from the first color gamut. In some embodiments, multiple light emitters in the third emission area 930 correspond to a third color gamut different from the first color gamut and the second color gamut. In some embodiments, the first color gamut corresponds to a color gamut having an optimal color (e.g., an optimal hue of red) for foveal vision.

[0150] In some embodiments, the first emission region 910 includes a plurality of light emitters configured to emit light of a first wavelength, and the second emission region 920 includes a plurality of light emitters configured to emit light of a second wavelength different from the first wavelength. In some embodiments, the third emission region 930 includes a plurality of light emitters configured to emit light of a third wavelength different from the first wavelength and the second wavelength. In some embodiments, the first wavelength corresponds to a first color in a first color gamut, the second wavelength corresponds to a second color in a second color gamut, and the third wavelength corresponds to a third color in a third color gamut. Fig.9A , the first color (e.g., red) of the first emission region 910 is different from the second color (e.g., orange-red) of the second emission region 920. The third color (e.g., orange) of the third emission region 930 is different from the first color of the first emission region 910 and the second color of the second emission region 920. Figure 4-8E As described, corresponding light emitters among the plurality of light emitters in the second emission region 920 have characteristics (e.g., light emitter type, luminous efficiency, brightness, material, etc.) that are different from the characteristics of corresponding light of the plurality of light emitters in the first emission region 910. In some embodiments, corresponding light emitters among the plurality of light emitters in the second emission region 920 operate at a current density that is different from the current density of corresponding light emitters among the plurality of light emitters in the first emission region 910. For example, the light emitters in the first emission region operate at a first current density selected for the color gamut, and the light emitters in the second emission region operate at a second current density selected for the luminous efficiency (even if the color gamut may be degraded at the second current density). In some embodiments, corresponding light emitters among the plurality of light emitters in the third emission region 930 have characteristics (e.g., light emitter type, luminous efficiency, brightness, material, etc.) that are different from the characteristics of the respective light of the plurality of light emitters in the first emission region 910 and the characteristics of the respective light of the plurality of light emitters in the second emission region 920. In some embodiments, corresponding light emitters among the multiple light emitters in the third emission region 930 operate at a current density that is different from the current density of corresponding light among the multiple light emitters in the first emission region 910 and the current density of corresponding light among the multiple light emitters in the second emission region 920.

[0151] Fig. 9B FIG. 9 shows a display panel 900 having a plurality of light emitters configured to emit light of one or more representative colors in corresponding emission regions according to some embodiments. Fig. 9B As shown, configuring the first emission region 910 (e.g., a central region) to provide light of a first hue distribution (e.g., placing light emitters having a first peak wavelength distribution), and configuring the second emission region 920 (e.g., a peripheral region) to provide light of a second hue distribution (e.g., placing light emitters having a second peak wavelength distribution that is wider than the first peak wavelength distribution, indicating that the color of light emitted by the light emitters in the second emission region 920 is more variable than the light emitters in the first emission region 910) allows the use of light emitters of the second hue distribution in the display panel 900 without compromising the color display quality of the display panel as perceived by the user. In some cases, the third emission region 930 (e.g., another peripheral region) is configured to provide light of a third hue distribution (e.g., placing light emitters having a third peak wavelength distribution that is wider than the second peak wavelength distribution, indicating that the color of light emitted by the light emitters in the third emission region 930 is more variable than the light emitters in the second emission region 920).

[0152] exist Fig. 9B In the embodiment, the second emission region 920 has a plurality of light emitters configured to provide two or more peak wavelengths for a target peak wavelength that are different from the peak wavelengths provided by the light emitters in the first emission region 910.

[0153] exist Fig. 9BIn the embodiment of the present invention, a plurality of light emitters configured to emit light of at least two representative colors are arranged in corresponding emission areas other than the first emission area 910. In some embodiments, the first plurality of light emitters in the first emission area 910 are configured to emit light of a first representative color corresponding to a first color in the first color gamut. In some embodiments, the light emitted from the first emission area 910 is perceived by the fovea of ​​the eye as having the same first color (e.g., red). In some embodiments, the second emission area 920 includes a plurality of light emitters configured to emit light of at least two different colors. For example, the plurality of light emitters in the second emission area 920 include at least one light emitter of the second group and at least one light emitter of the third group. In some embodiments, at least one light emitter of the second group (e.g., light emitter 922) is configured to emit light of a second representative color (e.g., orange) different from the first representative color, and at least one light emitter of the third group (e.g., light emitter 924) is configured to emit light of a third representative color (e.g., orange-red) different from the first representative color and the second representative color. In some embodiments, the light emitters of the second group are interspersed with the light emitters of the third group in the second emission area 920. In some embodiments, the second representative color and the third representative color are within the second color gamut.

[0154] In some embodiments, the third emission region 930 includes a plurality of light emitters configured to emit light having at least two different representative colors. For example, the plurality of light emitters include at least one light emitter in the fourth group and at least one light emitter in the fifth group. In some embodiments, at least one light emitter in the fourth group (e.g., light emitter 932) is configured to emit light having a fourth representative color (e.g., yellow-orange) that is different from the first representative color, the second representative color, and the third representative color. In some embodiments, at least one light emitter in the fifth group (e.g., light emitter 934) is configured to emit light having a fifth representative color (e.g., orange-brown) that is different from the first representative color, the second representative color, the third representative color, and the fourth representative color. In some embodiments, the light emitters of the fourth group are interspersed with the light emitters of the fifth group.

[0155] In some embodiments, corresponding ones of the plurality of light emitters in the third emission region 930 operate at a current density that is different from the current density of the plurality of light emitters in the first emission region 910 and the current density of the plurality of light emitters in the second emission region 920 .

[0156] Fig. 9C Display panel 900 is shown having multiple emissive regions with different densities of multiple light emitters in accordance with some embodiments.

[0157] Fig. 9C Similar to Fig.9A , except that the first emission region 910 and the second emission region 920 have different light emitter densities. Fig. 9C As shown, the distance between two adjacent light emitters in the second emission region 920 is greater than the distance between two adjacent light emitters in the first emission region 910. In some embodiments, the size of a corresponding light emitter in the plurality of light emitters in the second emission region 920 is greater than or equal to the size of a corresponding light emitter in the plurality of light emitters in the first emission region 910. For the sake of brevity, the above reference is not repeated here. Fig.9A A detailed description of multiple light emitters in corresponding emission areas is described.

[0158] Fig.9D A plurality of pixels of a display panel 900 are shown according to some embodiments.

[0159] exist Fig.9D In some embodiments, the size of a corresponding light emitter in the plurality of light emitters in the peripheral emission region 960 (e.g., the second emission region 920, the third emission region 930, etc.) is greater than the size of a corresponding light emitter in the plurality of light emitters in the central emission region 950 (e.g., the first emission region 910) of the display panel. Fig.9D As shown, the pixels in the peripheral emission region 960 are larger than the pixels in the central emission region 950. In some embodiments, as shown in FIG. Fig.9D As shown, the sub-pixels in the peripheral emission region 960 are larger than the sub-pixels in the central emission region 950. Fig.9D , item 952 is an enlarged view of a corresponding pixel of a plurality of pixels in first emission region 950, and item 962 is an enlarged view of a corresponding pixel of a plurality of pixels in second emission region 960. Fig.9D , pixel 952 includes four sub-pixels (e.g., one red sub-pixel, two green sub-pixels, and one blue sub-pixel). Fig.9D As shown, pixel 962 has the same number of sub-pixels as the number of sub-pixels in pixel 952 (e.g., four sub-pixels). In some embodiments, the sub-pixels of pixel 952 have colors that are different from the colors of the four sub-pixels of pixel 950 (e.g., as described above with reference to FIG. Fig.9A and Fig. 9B As described above, the color provided by the sub-pixel of pixel 952 is further away from the target color than the color provided by the sub-pixel of pixel 962).

[0160] In some embodiments, the display panel has a one-dimensional display layout including multiple emission areas to provide images of different color gamuts. Figures 10A-10FA display panel 1000 having a one-dimensional layout including multiple emission areas is shown according to some embodiments.

[0161] Although Figure 9A-9D A display panel with discrete regions (or regions with discrete color gamuts) is shown, but in some embodiments, a display panel with multiple regions with continuously varying color gamuts is used. For example, two adjacent regions with discrete color gamuts have color gamut weight values ​​that differ by at least 0.1, while two adjacent regions with continuously varying color gamuts have color gamut weight values ​​that differ by less than 0.1.

[0162] Fig. 10A A display panel 1000 having a one-dimensional display layout is shown according to some embodiments.

[0163] The display panel 1000 is similar to Figure 5-Figure 6 and Figure 9A-9D The display panels shown, except that display panel 1000 has a one-dimensional display layout including at least one linear array of a plurality of light emitters (eg, light emitters of the same color extend only along a single direction).

[0164] exist Fig. 10A , the display panel 1000 includes a first emission area 1040 for foveal vision, and one or more (e.g., two) second emission areas 1050 and one or more (e.g., two) third emission areas 1060 for peripheral vision. In some embodiments, the display panel 1000 has additional emission areas for peripheral vision (e.g., one or more fourth emission areas, one or more fifth emission areas, etc.). Although Fig. 10A The number of second emission areas and third emission areas is shown to be 2, but the number is not limited to 2 (e.g., 3, 4, etc.). In some embodiments, the first emission area 1040 is located between one or more second emission areas 1050. In some embodiments, the corresponding second emission area of ​​the one or more second emission areas 1050 is located between the first emission area 1040 and the corresponding third emission area of ​​the one or more third emission areas 1060. For the sake of brevity, the above reference is not repeated here. Figure 5 A detailed description of the color gamut and multiple light emitters in corresponding emission areas is described.

[0165] The plurality of light emitters arranged in the first emission area 1040 include a first group of two or more light emitters (e.g., light emitter 1012) having a first representative color and a second group of two or more light emitters (e.g., light emitter 1022) having a second representative color, wherein the first representative color and the second representative color correspond to a first color gamut. The first representative color is different from the second representative color. In some embodiments, the plurality of light emitters in one or more second emission areas 1050 corresponding to the second color gamut include a third group of one or more light emitters (e.g., light emitter 1014) having a third representative color and a fourth group of one or more light emitters (e.g., light emitter 1024) having a fourth representative color. The third representative color is different from the fourth representative color. For the sake of brevity, the above reference is not repeated here. Figure 5 A detailed description of each representative color described.

[0166] In some embodiments, the plurality of light emitters in first emission region 1040 further include a fifth group of two or more light emitters (e.g., light emitter 1032) having a fifth representative color. In some embodiments, the fifth representative color is different from the first representative color and the second representative color. In some embodiments, the plurality of light emitters in one or more second emission regions 1050 further include a sixth group of one or more light emitters (e.g., light emitter 1034) having a sixth representative color. In some embodiments, the sixth representative color is different from the first representative color, the third representative color, and the fourth representative color.

[0167] In some embodiments, the display panel 1000 includes a first linear array 1010, a second linear array 1020, and a third linear array 1030. Fig. 10A Three linear arrays are shown, but the display panel 1000 may have fewer than or more than three linear arrays (e.g., 1, 2, or at least 4, 5, 6, or 7 linear arrays, etc.). Fig. 10A As shown, the second linear array 1020 is located between the first linear array 1010 and the third linear array 1030. In some embodiments, the first linear array 1010 extends in a first direction, the second linear array 1020 extends in the first direction, and the second linear array 1020 deviates from the first linear array 1010 in a second direction that is not parallel (e.g., perpendicular) to the first direction. In some embodiments, the third linear array 1030 extends in the first direction and deviates from the first linear array 1010 and the second linear array 1020 in a third direction that is not parallel (e.g., perpendicular) to the first direction. In some embodiments, the third direction is parallel to the second direction.

[0168] In some embodiments, at least one linear array includes at least a subset of light emitters of a plurality of light emitters arranged in different emission areas. Fig. 10A As shown, the first linear array 1010 includes a first group of two or more light emitters 1012 arranged in a first emission area 1040 and a third group of one or more light emitters 1014 arranged in a corresponding second emission area of ​​one or more second emission areas 1050. In some embodiments, the first linear array 1010 also includes a seventh group of one or more light emitters (e.g., light emitter 1016) in a corresponding third emission area of ​​one or more third emission areas 1060 having a seventh representative color. In some embodiments, the seventh representative color is different from the first representative color and the third representative color. In some embodiments, the second linear array 1020 includes a second group of two or more light emitters 1022 in the first emission area 1040 and a fourth group of one or more light emitters 1024 in a corresponding second emission area of ​​one or more second emission areas 1050. In some embodiments, the second linear array 1020 further includes one or more light emitters arranged in respective third emission areas of the one or more third emission areas 1060, which have representative colors different from the second group of two or more light emitters 1022 and the fourth group of one or more light emitters 1024. In some embodiments, the third linear array 1030 includes a fifth group of two or more light emitters 1032 in the first emission area 1040 and a sixth group of one or more light emitters 1034 in respective second emission areas of the one or more third emission areas 1050. The third linear array 1030 further includes one or more light emitters arranged in respective third emission areas of the one or more third emission areas 1060, which have representative colors different from the fifth group of two or more light emitters 1032 and the sixth group of one or more light emitters 1034.

[0169] As above reference Figure 6 and Fig. 9C As described above, the corresponding emission regions can have different densities of light emitters. In some cases, this allows providing a high area image in the first emission region 1040 and reducing power consumption in at least one peripheral emission region (e.g., one or more second emission regions 1050, two third emission regions 1060, etc.).

[0170] Fig. 10B Display panel 1000 is shown having multiple emissive regions having different densities of light emitters in accordance with some embodiments.

[0171] Fig. 10B Similar to Fig. 10A, except that one or more second emission regions 1050 and one or more third emission regions 1060 have a light emitter density different from the light emitter density in the first emission region 1040. In some embodiments, the density of light emitters in the emission region is determined by the distance between at least two light emitters adjacent to each other in the same emission region (e.g., two adjacent light emitters in the same linear array). For example, light emitters 1012 and 1013 adjacent to each other in the first linear array 1010 in the first plurality of light emitters in the first emission region 1040 are spaced apart from each other by a first distance. In some embodiments, two light emitters adjacent to each other in the first linear array 1010 (e.g., light emitter 1014 and light emitter 1015) in the third plurality of light emitters in the corresponding second emission regions of the one or more second emission regions 1050 are spaced apart from each other by a second distance different from the first distance. In some embodiments, the second distance is greater than the first distance. In some embodiments, the distance between the first group of light emitters 1013 in the first linear array 1010 and the second group of light emitters 1022 in the second linear array 1020, which are adjacent to each other in the vertical direction, is equal to the distance between the third group of light emitters 1014 in the first linear array 1010 and the fourth group of light emitters 1024 in the second linear array 1020. Fig. 10B As shown, the corresponding linear arrays (for example, the first linear array 1010, the second linear array 1020 or the third linear array 1030, etc.) have a light emitter density (or spacing between light emitters) that varies from the center of the corresponding linear array corresponding to the first emission area 1040 to the left or right side of the corresponding linear array corresponding to the edge of the display panel 1000.

[0172] Fig. 10C A display panel 1000 is shown having multiple emission areas with different densities of multiple light emitters in accordance with some embodiments.

[0173] Fig. 10C Similar to Fig. 10B , except that the spacing between adjacent linear arrays of light emitters is different in different emission areas.

[0174] In some embodiments, the density of light emitters in the emission area is determined by the distance between at least two light emitters that are adjacent to each other in the emission area in the vertical direction (e.g., at least two light emitters in different linear arrays) and the horizontal direction (e.g., at least two light emitters in the same linear array) (or by the area that is the mathematical product of the vertical distance and the horizontal distance). Fig. 10C Similar to Fig. 10B, except that two adjacent light emitters in different linear arrays in the corresponding emission area (e.g., light emitters 1013 in the first linear array 1010 and light emitters 1022 in the second linear array 1020) have different distances. Fig. 10C As shown, the light emitters 1013 of the first group in the first linear array 1010 and the light emitters 1022 of the second group in the second linear array 1020 are adjacent to each other in the vertical direction in the first emission area 1040 and are separated from each other by a first distance. In some embodiments, the light emitters 1012 and 1013 of the first group in the first linear array 1010 that are adjacent to each other are separated from each other by a first distance. In some embodiments, the light emitters 1014 of the third group in the first linear array 1010 and the light emitters 1024 of the fourth group in the second linear array 1020 are adjacent to each other in the vertical direction in one or more second emission areas 1050 and are separated from each other by a second distance different from the first distance. In some embodiments, the light emitters 1014 and 1015 of the third group in the first linear array 1010 that are adjacent to each other are separated from each other by a second distance. In some embodiments, the second distance is greater than the first distance. In some embodiments, the distance between at least two adjacent linear arrays (for example, the distance between the first linear array and the second linear array, or the distance between the second linear array and the third linear array, etc.) increases from the center of at least two adjacent linear arrays corresponding to the first emission area 1040 to the left or right side of at least two adjacent linear arrays corresponding to the edge of the display panel 1000.

[0175] Fig. 10D A display panel 1000 is shown having multiple light emitters having different light emitting efficiencies in corresponding linear layers according to some embodiments.

[0176] Fig. 10D Similar to Fig. 10A , and shows a plurality of light emitters with different luminous efficiencies arranged in respective linear arrays (eg, a first linear array 1010, a second linear array 1020, or a third linear array 1030, etc.). Figure 5As described, the light emitters configured to emit light corresponding to different color gamuts have different luminous efficiencies and are arranged in different emission areas. For example, in the first linear array 1010, the light emitters 1017 of the plurality of light emitters in the first emission area 1040 (e.g., the first group of two or more light emitters of the first group) and the light emitters 1018 of the plurality of light emitters in one or more second emission areas 1050 (e.g., one or more light emitters of the third group) have different luminous efficiencies. In some embodiments, the first linear array further includes light emitters 1018 of the plurality of light emitters in one or more third emission areas 1060 (e.g., one or more light emitters of the seventh group), which have luminous efficiencies different from the two or more light emitters of the first group and the one or more light emitters of the third group.

[0177] Fig.10E A display panel 1000 is shown having multiple light emitters in corresponding linear layers that operate at different current densities according to some embodiments.

[0178] Fig.10E Similar to Fig. 10A ,Apart from Fig.10E It is further shown that a plurality of light emitters operating at different current densities are arranged in corresponding linear arrays (eg, the first linear array 1010, the second linear array 1020, or the third linear array 1030, etc.). Figure 7 As described, the peak wavelength of the corresponding light emitter can be moved according to (for example, based on) the current density of the corresponding light emitter. In order to provide images of different color gamuts, the multiple light emitters in the corresponding emission areas operate at their respective current densities. For example, a light emitter 1017-1 of the multiple light emitters in the first emission area 1040 (for example, two or more light emitters of the first group) operates at a first current density, and a light emitter 1018-1 of the multiple light emitters in one or more second emission areas 1050 (for example, one or more light emitters of the third group) operates at a second current density different from the first current density. In some embodiments, a light emitter 1019-1 of the multiple light emitters in one or more third emission areas 1060 (for example, one or more light emitters of the seventh group) operates at a third current density different from the first current density and the second current density. As Fig.10E As shown, the first linear array 1010 includes light emitter 1017-1, light emitter 1018-1 and light emitter 1019-1, so that the current density of the first linear array 1010 varies from the center of the first linear array corresponding to the first emission area 1040 to the edge of the first linear array corresponding to the edge of the display 1000.

[0179] Fig.10F A display panel 1000 is shown having multiple light emitters operating at different current densities in corresponding linear layers according to some embodiments.

[0180] Fig.10F Similar to Fig. 10A and Fig.10E , except that the respective linear arrays of the plurality of linear arrays have different arrangements of the plurality of light emitters. Fig.10E As described above, multiple light emitters operating at different current densities are located in different emission regions (e.g., Fig.10E As shown, light emitters 1071-1 in the first emission area 1040). To improve color fovea, at least one peripheral area (e.g., one or more second emission areas 1050, and one or more third emission areas 1060, etc.) has a different arrangement of multiple light emitters from the central emission area (e.g., the first emission area 1040). For example, multiple light emitters are arranged in the first emission area 1040 for foveal vision in a first configuration (e.g., with a first spacing between light emitters), and multiple light emitters are arranged in the second emission area 1050 in a second configuration (e.g., with a second spacing between light emitters, the second spacing being different from the first spacing). As shown in FIG. Fig.10F As shown, the first emission area 1040 includes the same number of light emitters (e.g., 5 light emitters 1011, 5 light emitters 1021, 5 light emitters 1031) arranged in corresponding rows corresponding to corresponding linear arrays (e.g., the first linear array 1010 in the first row, the second linear array 1020 in the second row, or the third linear array 1030 in the third row). In some embodiments, the corresponding second emission area of ​​one or more second emission areas 1050 includes a different number of light emitters (e.g., 3 light emitters 1014-1 in the first row, 6 light emitters including 3 light emitters 1023 and 3 light emitters 1025 in the second row) arranged in corresponding rows corresponding to corresponding linear arrays (e.g., the first linear array 1010, the second linear array 1020, or the third linear array 1030, etc.). Fig.10F As shown, the distance between light emitters 1014-1 in the first row of one or more second emission regions 1050 is greater than the distance between two adjacent light emitters (e.g., light emitter 1023 and light emitter 1025) arranged in the second row of one or more second emission regions 1050. In some embodiments, no light emitter may be arranged in the third row of one or more second emission regions 1050.

[0181] In some embodiments, the first linear array includes light emitters 1011 of a plurality of light emitters arranged in a first emission region 1040 (e.g., two or more light emitters of a first group), light emitters 1014-1 of a plurality of light emitters in one or more second emission regions 1050 (e.g., one or more light emitters of a third group), and at least a subset of a plurality of light emitters in one or more third emission regions 1060 (e.g., one or more light emitters of a seventh group). In some embodiments, light emitters 1011 in the first emission region 1040 operate at a different current density than light emitters 1014-1 in one or more second emission regions 1050. In addition, a distance between two adjacent light emitters of light emitters 1011 in the first emission region 1040 is less than a distance between two adjacent light emitters of light emitters 1014-1 in one or more second emission regions 1050.

[0182] In some embodiments, second linear array 1020 includes light emitter 1021 of a plurality of light emitters in first emission region 1040 (e.g., two or more light emitters of a second group), light emitter 1023 of a plurality of light emitters in one or more second emission regions 1050 (e.g., two or more light emitters of a fourth group) and light emitter 1025, and at least a subset of a plurality of light emitters in one or more third emission regions 1060. In some embodiments, a representative color (e.g., a fourth representative color) of light emitter 1023 is different from a representative color of light emitter 1025, such that a color corresponding to light emitted by light emitter 1023 is different from a color corresponding to light emitted by light emitter 1025. In some embodiments, as described above with reference to Figures 10A-10E As described above, the representative color of light emitter 1025 is equal to the sixth representative color of the one or more light emitters of the sixth group. In some embodiments, light emitter 1023 operates at a different current density than light emitter 1025.

[0183] In some embodiments, the third linear array 1030 includes a plurality of light emitters (e.g., two or more light emitters of the fifth group) in the first emission region 1040. Although the third linear array 1030 includes fewer light emitters than the other linear arrays, by adding light emitters 1025 in the second linear array 1020, the display panel 1000 can support the display of the display panel 1000 as described in reference to FIG. Figures 10A-10E The same color as described for the fovea.

[0184] Fig.11 is a flowchart illustrating a method of manufacturing a display device according to some embodiments.

[0185] The method includes providing a display panel (e.g., Figure 5-Figure 6 The display panel 500, Figure 9A-9D The display panel 900, Figures 10A-10F The first emission region (eg, Figure 5 The first emission region 510, Figure 6 The first emission region 610, Figure 9A-9C The first emission region 910, Fig.9D The first emission region 950, Figures 10A-10F The method further includes arranging (1100) a plurality of light emitters corresponding to a first color gamut in a first emission region (1040) in a display panel (e.g., Figure 5-Figure 6 The display panel 500, Figure 9A-9D The display panel 900, Figures 10A-10F One or more second emission regions (eg, Figure 5 The second emission region 520, Figure 6 The second emission region 620, Figure 9A-9C The second emission region 920, Fig.9D The second emission region 960, Figures 10A-10F A plurality of light emitters corresponding to a second color domain are arranged (1100) in one or more second emission regions (1050). The first emission region is different from and incompatible with the one or more second emission regions, and the one or more second emission regions are arranged adjacent to the first emission region. Figure 4 The first color gamut is different from the second color gamut.

[0186] In light of these principles, we turn to certain embodiments.

[0187] According to some embodiments, a display device includes a display panel configured to project light. The display panel has a plurality of emission regions, including a first emission region and one or more second emission regions (e.g., Figure 5-Figure 6 , Figure 8A-8D and Figures 10A-10F ). The first emission region is different from and incompatible with the one or more second emission regions, and the one or more second emission regions are disposed adjacent to the first emission region. The display device includes a plurality of light emitters arranged in the first emission region corresponding to the first color gamut, and a plurality of light emitters arranged in the one or more second emission regions corresponding to the second color gamut (e.g., Figure 5-Figure 6 , Figure 8A-8D , Figures 10A-10F ). The second color gamut is different from the first color gamut (e.g., Figure 4 ).

[0188] According to some embodiments, a display device includes a display panel configured to project light. The display panel has a plurality of emission regions, including a first emission region and one or more second emission regions (e.g., Figure 5-Figure 6 , Figure 8A-8D and Figures 10A-10F ). The first emission region is different from and incompatible with the one or more second emission regions, and the one or more second emission regions are disposed adjacent to the first emission region. The display device includes a plurality of light emitters arranged in the first emission region corresponding to a first color distribution, the first color distribution including at least two different colors, and a plurality of light emitters arranged in the one or more second emission regions corresponding to a second color distribution (e.g., Figure 5-Figure 6 , Figure 8A-8D , Figures 10A-10F ). The second color distribution is different from the first color distribution (e.g., Figure 4 ).

[0189] In some embodiments, the plurality of light emitters arranged in the first emission region includes at least a first group of two or more light emitters and a second group of two or more light emitters (eg, Figure 5-10F ). The first group of two or more light emitters has a first representative color, and the second group of two or more light emitters has a second representative color different from the first representative color (e.g., Figure 5-10F ). A corresponding second emission region of the one or more second emission regions includes a third group of one or more light emitters and a fourth group of one or more light emitters configured to emit light (e.g., Figure 5-10F ). One or more light emitters of the third group have a third representative color that is different from the first representative color and the second representative color (e.g., Figure 5-10F ). One or more light emitters of the fourth group have a fourth representative color different from the first representative color and the third representative color (eg, Figure 5-10F ).

[0190] In some embodiments, the plurality of light emitters arranged in the first emission region include a fifth group of two or more light emitters configured to emit light. The fifth group of two or more light emitters have a fifth representative color different from the first representative color and the second representative color (e.g., Figure 5-10F ). A corresponding second emission region of the one or more second emission regions includes a sixth group of one or more light emitters configured to emit light. The sixth group of one or more light emitters has a sixth representative color different from the first representative color, the third representative color, and the fourth representative color (e.g., Figure 5-10F ).

[0191] In some embodiments, a first group of two or more light emitters have emission wavelengths within a first wavelength range, and a second group of two or more light emitters have emission wavelengths within a second wavelength range different from the first wavelength range (e.g., Figure 5 ). One or more light emitters of the third group have an emission wavelength within a third wavelength range, and one or more light emitters of the fourth group have an emission wavelength within a fourth wavelength range different from the third wavelength range (e.g., Figure 5 ).

[0192] In some embodiments, the third wavelength range is different from the first wavelength range (e.g., Figure 5 ).

[0193] In some embodiments, the first group of two or more light emitters corresponds to (or has) a first luminous efficiency, and the third group of two or more light emitters corresponds to (or has) a second luminous efficiency different from the first luminous efficiency (e.g., Figure 5 ).

[0194] In some embodiments, a corresponding light emitter in the first group of two or more light emitters is operated at a current density that is less than a current density at which a corresponding light emitter in the third group of one or more light emitters is operated (e.g., Figure 7-8D ).

[0195] In some embodiments, the size of the light emitters of the plurality of light emitters in the first emission region is smaller than the size of the light emitters of the plurality of light emitters in one or more second emission regions (e.g., Figure 6 ).

[0196] In some embodiments, at least two adjacent light emitters among the plurality of light emitters in the first emission region are spaced apart from each other by a first distance that is smaller than a distance between two adjacent light emitters among the plurality of light emitters in the one or more second emission regions (e.g., Figure 6 , Figure 9A-9D and Figures 10A-10F ).

[0197] In some embodiments, the display panel has two second emission areas, and the first emission area is located between the two second emission areas. The first group of two or more light emitters in the first emission area and the third group of one or more light emitters in each second emission area are arranged to form a first linear array (e.g., Figures 10A-10F The second group of two or more light emitters in the first emission region and the fourth group of one or more light emitters in each second emission region are arranged to form a second linear array different from and separate from the first linear array (e.g., Figures 10A-10F ).

[0198] In some embodiments, the plurality of light emitters arranged in the first emission region include a fifth group of two or more light emitters configured to emit light. The fifth group of two or more light emitters have a fifth representative color different from the first representative color and the second representative color (e.g., Figures 10A-10E ). A corresponding second emission region of the one or more second emission regions includes a sixth group of one or more light emitters configured to emit light. The sixth group of one or more light emitters has a sixth representative color different from the first representative color, the third representative color, and the fourth representative color (e.g., Figure 5 and Figures 10A-10E ). The fifth group of two or more light emitters in the first emission area and the sixth group of one or more light emitters in each second emission area are arranged to form a third linear array that is different from and separate from the first and second linear arrays (e.g., Figure 5 and Figures 10A-10E ).

[0199] In some embodiments, the plurality of light emitters arranged in the first emission region include a fifth group of two or more light emitters configured to emit light. The fifth group of two or more light emitters have a fifth representative color different from the first representative color and the second representative color (e.g., Figure 5 and Fig.10F ). A corresponding second emission region of the one or more second emission regions includes a sixth group of one or more light emitters configured to emit light. The sixth group of one or more light emitters has a sixth representative color different from the first representative color, the third representative color, and the fourth representative color (e.g., Figure 5 and Fig.10F The two or more light emitters of the second group in the first emission region, the one or more light emitters of the fourth group in each second emission region, and the one or more light emitters of the sixth group are arranged to form a second linear array (e.g., Figure 5 and Fig.10F ). The fifth group of two or more light emitters in the first emission area are arranged to form a third linear array that is different from and separate from the first linear array and the second linear array (e.g., Figure 5 and Fig.10F ).

[0200] In some embodiments, the brightness of light emitted from one or more second emission regions is less than the brightness of light emitted from the first emission regions (e.g., Figure 8A-8E ).

[0201] In some embodiments, a first emission region is surrounded by one or more second emission regions (e.g., Figure 5-Figure 6 and Figure 9A-9D ).

[0202] In some embodiments, the first emission region includes a plurality of pixels, each pixel including two or more light emitters, and the second emission region includes a plurality of pixels, each pixel including two or more light emitters (e.g., Figure 5 The display device is configured to receive first color information of pixels in a first emission region and second color information of pixels in one or more second emission regions (eg, Figure 5 The display device is configured to process the second color information to obtain third color information based at least on the second color gamut of the one or more second emission regions, and to cause one or more light emitters of pixels in the one or more second emission regions to emit light based on the third color information instead of the second color information (e.g., Figure 5 ).

[0203] In some embodiments, the first emission region includes a plurality of pixels, each pixel including two or more light emitters, and the second emission region includes a plurality of pixels, each pixel including two or more light emitters (e.g., Figure 5 The display device is configured to receive first color information of pixels in a first emission region and second color information of pixels in one or more second emission regions (eg, Figure 5 The display device is configured to process the second color information to obtain third color information based at least on the second color distribution of the one or more second emission regions, and to cause one or more light emitters of pixels in the one or more second emission regions to emit light based on the third color information instead of the second color information (e.g., Figure 5 ).

[0204] In some embodiments, the display device is configured to cause one or more light emitters of pixels in the first emission area to emit light based on the first color information (eg, Figure 5 ).

[0205] According to some embodiments, a method of manufacturing a display device includes arranging a plurality of light emitters corresponding to a first color gamut in a first emission region of a display panel having a plurality of emission regions, and arranging a plurality of light emitters corresponding to a second color gamut in one or more second emission regions of the display panel (e.g., Fig.11 ). The first emission region is different from and incompatible with one or more second emission regions, and the one or more second emission regions are disposed adjacent to the first emission region (e.g., Figure 5-10F ). The first color gamut is different from the second color gamut (e.g., Figure 4 ).

[0206] According to some embodiments, a method of manufacturing a display device includes arranging a plurality of light emitters corresponding to a first color distribution in a first emission region of a display panel having a plurality of emission regions, and arranging a plurality of light emitters corresponding to a second color distribution in one or more second emission regions of the display panel (e.g., Fig.11 ). The first emission region is different from and incompatible with one or more second emission regions, and the one or more second emission regions are disposed adjacent to the first emission region (e.g., Figure 5-10F ). The first color distribution is different from the second color distribution (e.g., Figure 4 ).

[0207] According to some embodiments, a display device includes a display panel configured to project light. The display panel has a plurality of emission areas, including a first emission area (e.g., Fig.9E 910), one or more second emission regions (e.g., Fig.9E region 920) and one or more third emission regions (e.g., Fig.9E Area 930 in the first emission area). The first emission area is different from one or more second emission areas and one or more third emission areas, and is incompatible with each other. Each second emission area is different from one or more third emission areas and is incompatible with each other. One or more second emission areas are arranged adjacent to the first emission area and one or more third emission areas. The multiple light emitters arranged in the first emission area correspond to the first color gamut. The multiple light emitters arranged in the one or more third emission areas correspond to the second color gamut different from the first color gamut. One or more second emission areas include a first plurality of light emitters corresponding to the first color gamut and a second plurality of light emitters corresponding to the second color gamut.

[0208] According to some embodiments, a display device includes a display panel configured to project light. The display panel has a plurality of emission areas, including a first emission area (e.g., Fig.9E 910), one or more second emission regions (e.g., Fig.9E region 920) and one or more third emission regions (e.g., Fig.9ERegion 930 in the figure). The first emission region is different from one or more second emission regions and one or more third emission regions and are incompatible with each other. Each second emission region is different from one or more third emission regions and are incompatible with each other. One or more second emission regions are arranged adjacent to the first emission region and the one or more third emission regions. The plurality of light emitters arranged in the first emission region corresponds to a first color distribution. The plurality of light emitters arranged in the one or more third emission regions corresponds to a second color distribution different from the first color distribution. The one or more second emission regions include a first plurality of light emitters corresponding to the first color distribution and a second plurality of light emitters corresponding to the second color distribution.

[0209] In some embodiments, the corresponding second emission region includes a first sub-emission region (eg, Fig.9E sub-emitting region 922-1 in the example), a second sub-emitting region (eg, Fig.9E The sub-emitting region 922-2 in the embodiment of the present invention), the third sub-emitting region (for example, Fig.9E 922-3) and a fourth sub-emission region (eg, Fig.9E The second sub-emitting region is located between the first sub-emitting region and the third sub-emitting region, and the third sub-emitting region is located between the second sub-emitting region and the fourth sub-emitting region. The second plurality of light emitters are arranged in the first sub-emitting region and the third sub-emitting region, and the first plurality of light emitters are arranged in the second sub-emitting region and the fourth sub-emitting region.

[0210] In some embodiments, the first sub-emission area, the second sub-emission area, the third sub-emission area, and the fourth sub-emission area collectively correspond to a third color gamut that is different from the first color gamut and the second color gamut (for example, the average color gamut over the first sub-emission area, the second sub-emission area, the third sub-emission area, and the fourth sub-emission area is different from the first color gamut and the second color gamut).

[0211] In some embodiments, the first sub-emission region, the second sub-emission region, the third sub-emission region, and the fourth sub-emission region collectively correspond to a third color distribution that is different from the first color distribution and the second color distribution (for example, the average color distribution over the first sub-emission region, the second sub-emission region, the third sub-emission region, and the fourth sub-emission region is different from the first color distribution and the second color distribution).

[0212] In some embodiments, the corresponding second emission region further includes a fifth sub-emission region (eg, Fig.9F The sub-emitting region 922-5 in the example), the sixth sub-emitting region (eg, Fig.9F 922-6), the seventh sub-emitting region (eg, Fig.9F922-7) and the eighth sub-emission region (eg, Fig.9F The sub-emission regions 922-8 in the figure are different from each other and incompatible with each other. In addition, the fifth sub-emission region, the sixth sub-emission region, the seventh sub-emission region and the eighth sub-emission region are different from the first sub-emission region, the second sub-emission region, the third sub-emission region and the fourth sub-emission region, and are incompatible with each other. The sixth sub-emission region is located between the fifth sub-emission region and the seventh sub-emission region, and the seventh sub-emission region is located between the sixth sub-emission region and the eighth sub-emission region. The second plurality of light emitters are also arranged in the fifth sub-emission region and the seventh sub-emission region, and the first plurality of light emitters are also arranged in the sixth sub-emission region and the eighth sub-emission region.

[0213] In some embodiments, the fifth sub-emission area, the sixth sub-emission area, the seventh sub-emission area, and the eighth sub-emission area collectively correspond to a fourth color gamut that is different from the first color gamut, the second color gamut, and the third color gamut (for example, the average color gamut over the fifth sub-emission area, the sixth sub-emission area, the seventh sub-emission area, and the eighth sub-emission area is different from the first color gamut, the second color gamut, and the third color gamut).

[0214] In some embodiments, the fifth sub-emission region, the sixth sub-emission region, the seventh sub-emission region, and the eighth sub-emission region collectively correspond to a fourth color distribution that is different from the first color distribution, the second color distribution, and the third color distribution (for example, the average color distribution over the fifth sub-emission region, the sixth sub-emission region, the seventh sub-emission region, and the eighth sub-emission region is different from the first color distribution, the second color distribution, and the third color distribution).

[0215] In some embodiments, the ratio of the area of ​​the first sub-emission region to the area of ​​the second sub-emission region is different from the ratio of the area of ​​the fifth sub-emission region to the area of ​​the sixth sub-emission region. For example, in some cases, the area of ​​the first sub-emission region is smaller than the area of ​​the second sub-emission region, and the area of ​​the fifth sub-emission region is larger than the area of ​​the sixth sub-emission region. In another example, the area of ​​the first sub-emission region is smaller than the area of ​​the second sub-emission region, and the area of ​​the fifth sub-emission region is the same as the area of ​​the sixth sub-emission region. In yet another example, the area of ​​the first sub-emission region is the same as the area of ​​the second sub-emission region, and the area of ​​the fifth sub-emission region is larger than the area of ​​the sixth sub-emission region.

[0216] In some embodiments, the ratio of the area of ​​the first sub-emission region to the area of ​​the second sub-emission region is the same as the ratio of the area of ​​the third sub-emission region to the area of ​​the fourth sub-emission region. In some embodiments, the ratio of the area of ​​the fifth sub-emission region to the area of ​​the sixth sub-emission region is the same as the ratio of the area of ​​the seventh sub-emission region to the area of ​​the eighth sub-emission region. In some embodiments, the ratio of the area of ​​the first sub-emission region to the area of ​​the second sub-emission region is different from the ratio of the area of ​​the third sub-emission region to the area of ​​the fourth sub-emission region. In some embodiments, the ratio of the area of ​​the fifth sub-emission region to the area of ​​the sixth sub-emission region is different from the ratio of the area of ​​the seventh sub-emission region to the area of ​​the eighth sub-emission region.

[0217] In some embodiments, the corresponding second emission region further includes a ninth sub-emission region (eg, Fig.9F 922-9 in the sub-emitting region), the tenth sub-emitting region (eg, Fig.9F 922-10 in the sub-emitting region), the eleventh sub-emitting region (for example, Fig.9F 922-11) and the twelfth sub-emission region (eg, Fig.9F The ninth sub-emission region, the tenth sub-emission region, the eleventh sub-emission region and the twelfth sub-emission region are different from the first sub-emission region, the second sub-emission region, the third sub-emission region and the fourth sub-emission region, and are incompatible with each other. The tenth sub-emission region is located between the ninth sub-emission region and the eleventh sub-emission region, and the eleventh sub-emission region is located between the tenth sub-emission region and the twelfth sub-emission region. The second plurality of light emitters are further arranged in the ninth sub-emission region and the eleventh sub-emission region, and the first plurality of light emitters are further arranged in the tenth sub-emission region and the twelfth sub-emission region.

[0218] In some embodiments, the ninth sub-emission area, the tenth sub-emission area, the eleventh sub-emission area, and the twelfth sub-emission area collectively correspond to a fifth color gamut that is different from the first color gamut, the second color gamut, the third color gamut, and the fourth color gamut (for example, the average color gamut over the ninth sub-emission area, the tenth sub-emission area, the eleventh sub-emission area, and the twelfth sub-emission area is different from the first color gamut, the second color gamut, the third color gamut, and the fourth color gamut).

[0219] In some embodiments, the ninth sub-emission region, the tenth sub-emission region, the eleventh sub-emission region, and the twelfth sub-emission region collectively correspond to a fifth color distribution that is different from the first color distribution, the second color distribution, the third color distribution, and the fourth color distribution (for example, the average color distribution over the ninth sub-emission region, the tenth sub-emission region, the eleventh sub-emission region, and the twelfth sub-emission region is different from the first color distribution, the second color distribution, the third color distribution, and the fourth color distribution).

[0220] In some embodiments, the ratio of the area of ​​the first sub-emission region to the area of ​​the second sub-emission region is different from the ratio of the area of ​​the fifth sub-emission region to the area of ​​the sixth sub-emission region, the ratio of the area of ​​the ninth sub-emission region to the area of ​​the tenth sub-emission region, the ratio of the area of ​​the fifth sub-emission region to the area of ​​the sixth sub-emission region, and the ratio of the area of ​​the ninth sub-emission region to the area of ​​the tenth sub-emission region. For example, in some cases, the area of ​​the first sub-emission region is smaller than the area of ​​the second sub-emission region, the area of ​​the fifth sub-emission region is the same as the area of ​​the sixth sub-emission region, and the area of ​​the ninth sub-emission region is larger than the area of ​​the tenth sub-emission region.

[0221] For purposes of explanation, the foregoing description has been described with reference to specific embodiments. However, the above illustrative discussion is not intended to be exhaustive or to limit the scope of the claims to the precise forms disclosed. Many modifications and variations are possible in light of the above teachings. The embodiments were chosen in order to best explain the rationale of the claims and their practical application, thereby enabling others skilled in the art to best use the embodiments with various modifications to suit the particular use contemplated.

Claims

1. A display device, comprising: A display panel configured to project light, the display panel having a plurality of emission areas including a first emission area, one or more second emission areas, and one or more third emission areas, wherein: The first emission region, the one or more second emission regions, and the one or more third emission regions are mutually different and mutually exclusive; and The one or more second emission regions are disposed adjacent to the first emission region, and the one or more third emission regions are disposed adjacent to the one or more second emission regions; a plurality of light emitters arranged in the first emission region corresponding to a first color distribution; and a plurality of light emitters arranged in the one or more second emission regions corresponding to a second color distribution smaller than the first color distribution in a chromaticity diagram; and a plurality of light emitters arranged in the one or more third emission regions corresponding to a third color distribution different from the second color distribution and smaller than the first color distribution in the chromaticity diagram, wherein: The plurality of light emitters arranged in the first emission area include at least: a first group of two or more light emitters configured to emit light, the first group of two or more light emitters having a first representative color; and a second group of two or more light emitters configured to emit light, the second group of two or more light emitters having a second representative color different from the first representative color; and A corresponding second emission area of ​​the one or more second emission areas comprises: a third group of one or more light emitters configured to emit light, the third group of one or more light emitters having a third representative color different from the first representative color and the second representative color; and a fourth group of one or more light emitters configured to emit light, the fourth group of one or more light emitters having a fourth representative color different from the first representative color and the third representative color; and The plurality of light emitters arranged in the first emission area further include a fifth group of two or more light emitters configured to emit light, the fifth group of two or more light emitters having a fifth representative color different from the first representative color and the second representative color; and A corresponding second emission area among the one or more second emission areas also includes a sixth group of one or more light emitters configured to emit light, and the one or more light emitters of the sixth group have a sixth representative color different from the first representative color, the third representative color and the fourth representative color.

2. The display device according to claim 1, wherein: Each light emitter in the fourth group of one or more light emitters and the sixth group of one or more light emitters corresponds to a particular type of light emitter; and The display panel is configured to simultaneously provide (i) a first current density for the fourth group of one or more light emitters for emitting light of the fourth representative color and (ii) a second current density different from the first current density for the sixth group of one or more light emitters for emitting light of the sixth representative color.

3. The display device according to claim 1, wherein: The first group of two or more light emitters have emission wavelengths within a first wavelength range; The second group of two or more light emitters have emission wavelengths within a second wavelength range different from the first wavelength range; The one or more optical emitters of the third group have an emission wavelength within a third wavelength range; and The fourth group of one or more optical emitters has an emission wavelength within a fourth wavelength range different from the third wavelength range, and optionally, wherein the third wavelength range is different from the first wavelength range. 4 . The display device of claim 1 , wherein the first group of two or more light emitters corresponds to a first light emission efficiency, and the third group of one or more light emitters corresponds to a second light emission efficiency different from the first light emission efficiency.

5. The display device according to claim 1, wherein: The display panel further includes: The first emission region is in contact with the one or more second emission regions, and / or wherein the display panel is configured to provide a first current density to the first group of two or more light emitters; and The display panel is configured to provide a second current density to the third group of two or more light emitters at a first time, and to provide a third current density different from the second current density at a second time different from the first time.

6. The display device according to claim 1, wherein: A corresponding light emitter in the first group of two or more light emitters is operated at a current density that is less than a current density at which a corresponding light emitter in the third group of one or more light emitters is operated, and / or The size of the light emitters among the plurality of light emitters in the first emission area is smaller than the size of the light emitters among the plurality of light emitters in the one or more second emission areas.

7. The display device according to claim 1, wherein: At least two adjacent light emitters among the plurality of light emitters in the first emission area are spaced apart from each other by a first distance that is smaller than a distance between two adjacent light emitters among the plurality of light emitters in the one or more second emission areas.

8. The display device according to claim 1, wherein: The display panel has two second emission areas; The first emission area is located between the two second emission areas; The first group of two or more light emitters in the first emission area and the third group of one or more light emitters in each second emission area are arranged to form a first linear array; and The second group of two or more light emitters in the first emission area and the fourth group of one or more light emitters in each second emission area are arranged to form a second linear array different from and separate from the first linear array.

9. The display device according to claim 8, wherein: the plurality of light emitters arranged in the first emission area include a fifth group of two or more light emitters configured to emit light, the fifth group of two or more light emitters having a fifth representative color different from the first representative color and the second representative color; a corresponding second emission area of ​​the one or more second emission areas includes a sixth group of one or more light emitters configured to emit light, the sixth group of one or more light emitters having a sixth representative color different from the first representative color, the third representative color, and the fourth representative color; and The two or more light emitters of the fifth group in the first emission area and the one or more light emitters of the sixth group in each second emission area are arranged to form a third linear array, which is different from the first linear array and the second linear array and is separated from the first linear array and the second linear array.

10. The display device according to claim 8, wherein: the plurality of light emitters arranged in the first emission area include a fifth group of two or more light emitters configured to emit light, the fifth group of two or more light emitters having a fifth representative color different from the first representative color and the second representative color; a corresponding second emission area of ​​the one or more second emission areas includes a sixth group of one or more light emitters configured to emit light, the sixth group of one or more light emitters having a sixth representative color different from the first representative color, the third representative color, and the fourth representative color; and the second group of two or more light emitters in the first emission area, the fourth group of one or more light emitters in each second emission area, and the sixth group of one or more light emitters are arranged to form a second linear array; The fifth group of two or more light emitters in the first emission area are arranged to form a third linear array that is different from and separate from the first linear array and the second linear array.

11. The display device according to claim 1, wherein: The brightness of light emitted from the one or more second emission regions is less than the brightness of light emitted from the first emission region, and / or wherein: The first emission area is surrounded by the one or more second emission areas.

12. The display device according to claim 1, wherein: The first emission region includes a plurality of pixels, each pixel including two or more light emitters; The second emission region includes a plurality of pixels, each pixel including two or more light emitters; The display device is configured to receive first color information of pixels in the first emission region and second color information of pixels in the one or more second emission regions; and The display device is configured to process the second color information to obtain third color information based at least on the second color gamut of the one or more second emission areas, and to cause one or more light emitters of pixels in the one or more second emission areas to emit light based on the third color information instead of the second color information, and optionally, wherein: The display device is configured so that one or more light emitters of pixels in the first emission area emit light based on the first color information.

13. A method for manufacturing a display device, the method comprising: arranging a plurality of light emitters corresponding to a first color distribution in a first emission region of a display panel having a plurality of emission regions; arranging a plurality of light emitters corresponding to a second color distribution in one or more second emission regions of the display panel; and A plurality of light emitters corresponding to a third color distribution different from the second color distribution are arranged in one or more third emission regions of the display panel; wherein: The first emission region, the one or more second emission regions, and the one or more third emission regions are mutually different and mutually exclusive; and The one or more second emission regions are disposed adjacent to the first emission region, and the one or more third emission regions are disposed adjacent to the one or more second emission regions; The second color distribution and the third color distribution are smaller than the first color distribution in the chromaticity diagram; The plurality of light emitters arranged in the first emission area include at least: a first group of two or more light emitters configured to emit light, the first group of two or more light emitters having a first representative color; and a second group of two or more light emitters configured to emit light, the second group of two or more light emitters having a second representative color different from the first representative color; and A corresponding second emission area of ​​the one or more second emission areas comprises: a third group of one or more light emitters configured to emit light, the third group of one or more light emitters having a third representative color different from the first representative color and the second representative color; and a fourth group of one or more light emitters configured to emit light, the fourth group of one or more light emitters having a fourth representative color different from the first representative color and the third representative color; The plurality of light emitters arranged in the first emission area further include at least a fifth group of two or more light emitters configured to emit light, the fifth group of two or more light emitters having a fifth representative color different from the first representative color and the second representative color; and A corresponding second emission area in the one or more second emission areas further includes a sixth A sixth group of one or more light emitters is configured to emit light, the sixth group of one or more light emitters having a sixth representative color different from the first representative color, the third representative color, and the fourth representative color.

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