Display apparatus, operating method, medium, and product

Abstract

Disclosed in the present disclosure are a display apparatus, an operating method, a medium, and a product. The display apparatus comprises: a display assembly, configured to provide a light beam; a modulation assembly, the modulation assembly comprising a modulation layer and a first drive layer located on the surface of the modulation layer, and the first drive layer being configured to drive the modulation layer under the action of a first drive signal so as to modulate a received light beam; and a touch control assembly, the touch control assembly comprising a touch control layer and a second drive layer located on the surface of the touch control layer, the second drive layer being configured to drive the touch control layer under the action of a second drive signal so as to implement touch and / or control on the basis of a modulated light beam, the first drive signal and the second drive signal being synchronized on the basis of a synchronization signal.

Description

Display apparatus, operating method, medium, and product TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of display and, more particularly, to a display apparatus, operating method, medium, and product. BACKGROUND

[0002] Electronic displays are nearly ubiquitous media for conveying information to users of a variety of devices and products. The most common electronic displays are cathode ray tubes (CRTs), plasma display panels (PDPs), liquid crystal displays (LCDs), electroluminescent displays (ELs), organic light emitting diodes (OLEDs) and active matrix OLEDs (AMOLEDs) displays, electrophoretic displays (EPs), and various displays that employ electromechanical or electrofluidic light modulation (e.g., digital micromirror devices, electrowetting displays, etc.). Generally, electronic displays can be classified as either active displays (i.e., displays that emit light) or passive displays (i.e., displays that modulate light provided by another source). The most obvious examples of active displays are CRTs, PDPs, and OLEDs / AMOLEDs. Displays that are generally classified as passive when considering the emission of light are LCDs and electrophoretic displays. Passive displays, while often exhibiting attractive performance characteristics, including but not limited to, inherent low power consumption, can find their use limited in many practical applications due to the lack of light emitting capability.

[0003] To overcome the limitations of passive displays associated with the emitted light, many passive displays are coupled to an external light source. The coupled light source can allow these passive displays to emit light and function substantially as active displays. An example of such a coupled light source is a backlight. A backlight is a light source (typically a panel light source) that is placed behind a passive display to illuminate the passive display. For example, a backlight can be coupled to an LCD or EP display. The backlight emits light that passes through the LCD or EP display. The emitted light is modulated by the LCD or EP display and, in turn, subsequently emits the modulated light from the LCD or EP display. Backlights are typically configured to emit white light, which is then converted to the various colors used in the display using color filters.

[0004] SUMMARY

[0005] The present disclosure provides a display apparatus, operating method, medium, and product that can effectively reduce interference caused by an alternating magnetic field generated for driving a driving signal of a modulation component in a display apparatus on other components of the display apparatus.

[0006] According to an aspect of the present disclosure, a display device is provided, comprising: a display component configured to provide a light beam; a modulation component, the modulation component comprising a modulation layer and a first driving layer located on a surface of the modulation layer, the first driving layer configured to drive the modulation layer under the action of a first driving signal to modulate the received light beam; and a touch component, the touch component comprising a touch layer and a second driving layer located on a surface of the touch layer, the second driving layer configured to drive the touch layer under the action of a second driving signal to realize touch and / or control based on the modulated light beam, wherein the first driving signal and the second driving signal are synchronized based on a synchronization signal.

[0007] In some embodiments, wherein the period of the synchronization signal, the period of the first driving signal and the period of the second driving signal are the same or have a multiple relationship; in the case that the first driving signal completes state switching within the duration of the active level of the synchronization signal, the state switching time of the second driving signal is set to be greater than or equal to the duration; in the case that the second driving signal completes state switching within the duration of the active level of the synchronization signal, the state switching time of the first driving signal is less than or equal to the duration.

[0008] In some embodiments, wherein, in order to synchronize the first driving signal and the second driving signal based on the synchronization signal: in the case that the first driving signal completes state switching within the duration of the active level of the synchronization signal, the modulation component generates the synchronization signal based on the first driving signal; the touch component generates the second driving signal based on the generated synchronization signal; in the case that the second driving signal completes state switching within the duration of the active level of the synchronization signal, the touch component generates the synchronization signal based on the second driving signal; the modulation component generates the first driving signal based on the generated synchronization signal.

[0009] In some embodiments, the display component includes a light beam providing layer and a third driving layer located on a surface of the light beam providing layer, the third driving layer is configured to drive the light beam providing layer under the action of a third driving signal to provide the light beam, wherein the first driving signal, the second driving signal and the third driving signal are synchronized based on the synchronization signal; the period of the synchronization signal, the period of the first driving signal, the period of the second driving signal and the period of the third driving signal are the same or have a multiple relationship; in the case that the first driving signal completes state switching within the duration of the active level of the synchronization signal, the state switching time of the second driving signal is set to be greater than or equal to the duration or the state switching time of the second driving signal and the state switching time of the third driving signal are set to be greater than or equal to the duration; in the case that the second driving signal completes state switching or the third driving signal completes state switching within the duration of the active level of the synchronization signal, the state switching time of the first driving signal is set to be less than or equal to the duration.

[0010] In some embodiments, in order to synchronize the first driving signal, the second driving signal and the third driving signal based on the synchronization signal: in the case that the first driving signal completes state switching within the duration of the active level of the synchronization signal, the modulation component generates the synchronization signal based on the first driving signal; the touch component generates the second driving signal based on the generated synchronization signal; the display component generates the third driving signal based on the generated synchronization signal; in the case that the second driving signal completes state switching within the duration of the active level of the synchronization signal, the touch component generates the synchronization signal based on the second driving signal; the modulation component generates the first driving signal based on the generated synchronization signal; the display component generates the third driving signal based on the generated synchronization signal; and in the case that the third driving signal completes state switching within the duration of the active level of the synchronization signal, the display component generates the synchronization signal based on the third driving signal; the modulation component generates the first driving signal based on the generated synchronization signal; the touch component generates the second driving signal based on the generated synchronization signal.

[0011] In some embodiments, the modulation layer includes a liquid crystal layer, the liquid crystal layer is configured to modulate the light beam by adjusting the orientation of liquid crystals in the liquid crystal layer under the action of an electric field generated by the first driving signal in the first driving layer.

[0012] In some embodiments, wherein the modulation layer, when driven by the first driving signal, passes the light beam and changes the intensity of the passed light beam, and when not driven, hinders the passing of the light beam.

[0013] In some embodiments, wherein at least one of the first driving layer, the second driving layer and the third driving layer comprises a transparent conductive material.

[0014] In some embodiments, wherein the light beam is a two-dimensional light beam, and the display assembly further comprises a multi-beam element array arranged in the modulation layer, multi-beam elements in the multi-beam element array are configured to scatter the two-dimensional light beam to generate a plurality of directional light beams having different directions.

[0015] In some embodiments, wherein the light beam is a three-dimensional light beam, the display assembly comprises a backlight, the backlight comprises a multi-beam element array, multi-beam elements in the multi-beam element array are configured to scatter light to generate a plurality of directional light beams having different directions as the three-dimensional light beam.

[0016] In some embodiments, wherein multi-beam elements in the multi-beam element array comprise one or more of a diffraction grating configured to diffractively scatter light to generate the plurality of directional light beams, a micro-reflective element configured to reflectively scatter light to generate the plurality of directional light beams, and a micro-refractive element configured to refractively scatter light to generate the plurality of directional light beams.

[0017] According to an aspect of the present disclosure, a method for operating a display device is provided, comprising: providing a light beam with a display assembly in the display device; applying a first driving signal on a first driving layer of a modulation assembly of the display device to drive a modulation layer of the modulation assembly to modulate the received light beam; and applying a second driving signal on a second driving layer of a touch assembly of the display device to drive a touch layer of the touch assembly to realize touch and / or control based on the modulated light beam, wherein the first driving signal and the second driving signal are synchronized based on a synchronization signal.

[0018] In some embodiments, wherein a period of the synchronization signal, a period of the first driving signal and a period of the second driving signal are same or exist a multiple relationship; in a case that a duration of an active level of the synchronization signal indicates that the first driving signal has completed a state switching within the duration, the duration is less than or equal to a state switching time of the second driving signal; in a case that the duration of the active level of the synchronization signal indicates that the second driving signal has completed a state switching within the duration, the duration is greater than or equal to the state switching time of the first driving signal.

[0019] In some embodiments, where the duration of the active level of the synchronization signal indicates that the first drive signal has completed a state transition within the duration, the first drive signal and the second drive signal are synchronized based on the synchronization signal, including: controlling the modulation component to generate the synchronization signal based on the first drive signal; and controlling the touch component to generate the second drive signal based on the generated synchronization signal. Where the duration of the active level of the synchronization signal indicates that the second drive signal has completed a state transition within the duration, the first drive signal and the second drive signal are synchronized based on the synchronization signal, including: controlling the touch component to generate the synchronization signal based on the second drive signal; and controlling the modulation component to generate the first drive signal based on the generated synchronization signal.

[0020] In some embodiments, where the providing the light beam using the display component in the display device includes: applying a third drive signal on a third drive layer of the display component to drive a light beam providing layer of the display component to provide the light beam, where the first drive signal, the second drive signal, and the third drive signal are synchronized based on the synchronization signal; a period of the synchronization signal, a period of the first drive signal, a period of the second drive signal, and a period of the third drive signal are the same or have a multiple relationship; where the duration of the active level of the synchronization signal indicates that the first drive signal has completed a state transition within the duration, the duration is less than or equal to a state transition time of the second drive signal or the duration is less than or equal to a state transition time of the second drive signal and a state transition time of the third drive signal; where the duration of the active level of the synchronization signal indicates that the second drive signal has completed a state transition or the third drive signal has completed a state transition within the duration, the duration is greater than or equal to a state transition time of the first drive signal.

[0021] In some embodiments, where the duration of the active level of the synchronization signal indicates that the first drive signal completed a state transition within the duration, the first drive signal, the second drive signal, and the third drive signal are synchronized based on the synchronization signal, including: controlling the modulation component to generate the synchronization signal based on the first drive signal; controlling the touch component to generate the second drive signal based on the generated synchronization signal; controlling the display component to generate the third drive signal based on the generated synchronization signal; where the duration of the active level of the synchronization signal indicates that the second drive signal completed a state transition within the duration, the first drive signal, the second drive signal, and the third drive signal are synchronized based on the synchronization signal, including: controlling the touch component to generate the synchronization signal based on the second drive signal; controlling the modulation component to generate the first drive signal based on the generated synchronization signal; controlling the display component to generate the third drive signal based on the generated synchronization signal; and where the duration of the active level of the synchronization signal indicates that the third drive signal completed a state transition within the duration, the first drive signal, the second drive signal, and the third drive signal are synchronized based on the synchronization signal, including: controlling the display component to generate the synchronization signal based on the third drive signal; controlling the modulation component to generate the first drive signal based on the generated synchronization signal; controlling the touch component to generate the second drive signal based on the generated synchronization signal.

[0022] In some embodiments, where the modulation layer includes a liquid crystal layer, the method further includes: applying the first drive signal to generate an electric field at the first drive layer, the liquid crystal layer adjusting an orientation of liquid crystals in the liquid crystal layer under the electric field to modulate the light beam.

[0023] In some embodiments, at least one of the first drive layer, the second drive layer, and the third drive layer includes a transparent conductive material.

[0024] In some embodiments, where the modulation layer, when driven by the first drive signal, passes the light beam and changes an intensity of the passed light beam, and when not driven, hinders the passing of the light beam.

[0025] According to an aspect of the present disclosure, there is provided an apparatus for operating a display device, comprising: a processor, and a memory storing computer executable instructions that, when executed by the processor, cause the processor to perform the method of any one of the above.

[0026] According to an aspect of the disclosure, a computer readable recording medium storing computer executable instructions is provided, wherein the computer executable instructions, when executed by a processor, cause the processor to perform the method of any of the above.

[0027] According to an aspect of the disclosure, a computer program product including computer executable instructions is provided, wherein the computer executable instructions, when executed by a processor, cause the processor to perform the method of any of the above. BRIEF DESCRIPTION OF DRAWINGS

[0028] Various features and embodiments of examples and implementations in accordance with the principles described herein can be more readily understood by reference to the following detailed description, taken in conjunction with the accompanying drawings, in which like reference numerals designate like structural elements, and in which:

[0029] FIG. 1 illustrates a structural schematic diagram of a display apparatus 1000 according to some examples.

[0030] FIG. 2 illustrates a structural schematic diagram of a display apparatus 2000 in an example according to embodiments consistent with the principles described herein.

[0031] FIGS. 3-10 illustrate schematic diagrams of synchronization signals and driving signals in examples according to embodiments consistent with the principles described herein.

[0032] FIG. 11 illustrates a structural schematic diagram of a display apparatus 11000 in an example according to another embodiment consistent with the principles described herein.

[0033] FIG. 12 illustrates a structural schematic diagram of a display apparatus 12000 in an example according to another embodiment consistent with the principles described herein.

[0034] FIG. 13 illustrates a flowchart of a method 13000 for operating a display apparatus in an example according to embodiments consistent with the principles described herein.

[0035] FIG. 14 illustrates a block diagram of an apparatus 1400 for operating a display apparatus in an example according to embodiments consistent with the principles described herein.

[0036] FIG. 15 illustrates a schematic diagram of a medium 1500 in an example according to embodiments consistent with the principles described herein. DETAILED DESCRIPTION

[0037] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present disclosure with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present disclosure, but not all the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present disclosure.

[0038] Nowadays, electronic displays widely use liquid crystal materials to modulate light provided by display components, for example, use liquid crystal light valves to modulate light. Liquid crystal materials are formed by a large number of micron-sized liquid crystal particles. Since the optical axis of the liquid crystal particles is in free orientation, its refractive index does not match the refractive index of the matrix. When light passes through the matrix, it will be strongly scattered by the liquid crystal particles, so that the liquid crystal material presents an opaque milky white state or a translucent state. When an electric field is applied to the liquid crystal material, the orientation of the optical axis of the liquid crystal particles will change, thereby changing its arrangement. When the refractive index of the liquid crystal particles matches the refractive index of the matrix, the liquid crystal material will present a transparent state. This effect is called the electro-optic effect of liquid crystals, which has been widely used in the design of liquid crystal displays. A common way to apply an electric field to the liquid crystal material is to arrange a driving electrode layer (for example, an electrode layer formed of indium tin oxide (ITO)) on one or both of the upper and lower sides of the liquid crystal material, and to apply a driving voltage signal to the driving electrode layer, thereby generating an electric field at or between one or both driving electrodes.

[0039] FIG. 1 shows a structural schematic diagram of a display device 1000 according to some examples. In the example of FIG. 1, the display device 1000 can include a display component 1100 for providing a light beam, a modulation component 1200 for modulating the light beam from the display component, wherein the modulation component 1200 includes a liquid crystal layer 1210 and a first driving layer 1221 located on the lower surface of the liquid crystal layer 1210. It should be noted that the first driving layer 1221 can also be located on the upper surface of the liquid crystal layer 1210, or one driving layer is respectively arranged on the lower surface and the upper surface of the liquid crystal layer 1210.

[0040] In addition, in order to realize touch operation, the display device 1000 can also generally include a touch component 1300 located above the modulation component 1200. The touch component 1300 can include a touch layer 1310 and a second driving layer 1321 located on the lower surface of the touch layer 1310. It should be noted that the second driving layer 1321 can also be located on the upper surface of the touch layer 1310, or one driving layer is respectively arranged on the lower surface and the upper surface of the touch layer 1310.

[0041] Generally, the driving voltage signal is an alternating signal, which can be applied to the first driving layer 1221 of the liquid crystal layer 1210, and then the first driving layer 1221 drives the liquid crystal layer 1210 to modulate the light beam from the display assembly under the action of the alternating signal. The amplitude of the above-mentioned alternating signal usually fluctuates in the range of positive tens of volts to negative tens of volts (for example, up to ±50V). When the liquid crystal layer is driven by the alternating signal, due to the alternating signal, an alternating magnetic field is generated (especially during the switching from the positive signal to the negative signal, also known as the state switching time), which can interfere with other devices near the liquid crystal layer, such as the display assembly 1100 below the liquid crystal layer and the touch assembly 1300 above the liquid crystal layer. In addition, as described above, since the alternating signal can be as high as ±50V, the alternating magnetic field generated thereby is large. In some cases, such electromagnetic interference caused by the alternating magnetic field can cause the touch assembly to report incorrect touch points, ghost points, and the like, thereby seriously affecting the touch performance. In some cases, such electromagnetic interference caused by the alternating magnetic field can also cause the display assembly to fail to normally provide a light beam, and the like.

[0042] To address the above problems, embodiments in accordance with the principles described herein provide a display device and an operating method thereof. Specifically, the display device described herein can include a display assembly for providing a two-dimensional light beam or a three-dimensional light beam, a modulation assembly for modulating the light beam, and a touch assembly for realizing touch and / or control based on the modulated light beam. The modulation assembly includes a modulation layer and a first driving layer located on the surface of the modulation layer, wherein the first driving layer is configured to drive the modulation layer under the action of a first driving signal to modulate the received light beam. The touch assembly includes a touch layer and a second driving layer located on the surface of the touch layer, wherein the second driving layer is configured to drive the touch layer under the action of a second driving signal to realize touch and / or control based on the modulated light beam. The first driving signal and the second driving signal can be synchronized based on a synchronization signal, so that during the state switching of the first driving signal, the second driving signal is also in the state switching (e.g., the touch assembly is not in the scanning state), thereby reducing the interference of the alternating magnetic field generated by the state switching of the first driving signal on the touch assembly, and avoiding the occurrence of problems such as incorrect touch points, ghost points, and the like.

[0043] In this document, the term "multiview" as used in the terms "multiview image" and "multiview display" is defined to mean a plurality of views representing different perspectives or including angular disparity between views in the plurality of views. Furthermore, in this document, the term "multiview" expressly includes more than two different views according to the definition herein (i.e., a minimum of three views and generally more than three views). As such, a "multiview display" as employed herein expressly distinguishes from a stereoscopic display that includes only two different views to represent a scene or image. However, it is noted that while a multiview image and multiview display include more than two views, a multiview image (e.g., on a multiview display) can be viewed as a stereoscopic pair of images by selecting only two views from the multiview at a time (e.g., one view for each eye) according to the definition herein.

[0044] According to the definition herein, a "multibeam element" is a structure or element of a backlight or display that produces light including a plurality of directional light beams. According to the definition herein, a directional light beam of the plurality of directional light beams produced by the multibeam element has a principal angular direction that is different from the principal angular direction of another directional light beam of the plurality of directional light beams. In particular, according to the definition, a directional light beam of the plurality of directional light beams has a predetermined principal angular direction that is different from the principal angular direction of another directional light beam of the plurality of directional light beams. According to some embodiments, the size of the multibeam element can be comparable to the size of a light valve used in a display (e.g., a multiview display) associated with the multibeam element. In particular, in some embodiments, the multibeam element size can be between about one-half and about twice the size of a light valve.

[0045] In this document, a "light guide" is defined as a structure that guides light within the structure using total internal reflection. In particular, a light guide can include a core that is substantially transparent at the operating wavelengths of the light guide. In various examples, the term "light guide" generally refers to a dielectric optical waveguide that employs total internal reflection to guide light at an interface between the dielectric material of the light guide and a material or medium that surrounds the light guide. By definition, the condition for total internal reflection is that the refractive index of the light guide is greater than the refractive index of the surrounding medium adjacent to the surface of the light guide material. In some embodiments, in addition to or instead of the refractive index difference mentioned above, the light guide can include a coating to further facilitate total internal reflection. For example, the coating can be a reflective coating. The light guide can be any of several light guides, including but not limited to one or both of a slab light guide and a strip light guide.

[0046] In this document, a "diffraction grating" is generally defined as a plurality of features (i.e., diffractive features) arranged to provide diffraction of light incident on the diffraction grating. In some examples, the plurality of features can be arranged in a periodic or quasi-periodic manner. In other examples, the diffraction grating can be a hybrid periodic diffraction grating that includes a plurality of diffraction gratings, each of the plurality of diffraction gratings having a different periodic arrangement of features. Additionally, the diffraction grating can include a plurality of diffractive features (e.g., a plurality of grooves or ridges in a material surface) arranged in a one-dimensional (ID) array. In other examples, the diffraction grating can be a two-dimensional (2D) array of diffractive features. For example, the diffraction grating can be a 2D array of bumps or holes on a material surface. In some examples, the diffraction grating can be substantially periodic in a first direction or dimension and substantially non-periodic (e.g., constant, random, etc.) in another direction across or along the diffraction grating.

[0047] FIG. 2 illustrates a structural diagram of a display device 2000 in an example, according to an embodiment consistent with the principles described herein. As shown in FIG. 2, the display device 2000 can include a display assembly 2100, a modulation assembly 2200, and a touch assembly 2300 positioned above the modulation assembly 2200.

[0048] The display assembly 2100 is configured to provide a light beam, which can be a two-dimensional or a three-dimensional light beam. According to some embodiments, the display assembly 2100 can provide a two-dimensional light beam, e.g., the display assembly 2100 can employ an organic light emitting diode (OLED) array to generate a two-dimensional light beam, or employ a two-dimensional backlight to generate a two-dimensional light beam. According to other embodiments, the display assembly 2100 can provide a three-dimensional light beam, e.g., the display assembly 2100 can include a three-dimensional backlight having an array of multi-beam elements, which can scatter light to generate a plurality of directional light beams having different directions as a three-dimensional light beam, as will be described in further detail below.

[0049] The modulation component 2200 is defined as a component for modulating the received light beams (e.g., from the display component 2100) to facilitate displaying information having three-dimensional content or represented as multi-view images, which can also be referred to as a light valve component, for example. The modulation component 2200 can include a modulation layer 2210 and a first driving layer 2221 located at a first surface of the modulation layer 2210, which can drive the modulation layer 2210 to modulate the received light beams when a driving voltage signal is applied to the first driving layer 2221. Specifically, the modulation layer 2210 can be approximately transparent to the light beams when driven by the driving signal on the first driving layer 2221, so as to pass the light beams and can change the intensity, polarization, etc. of the passed light beams. While the modulation layer 2210 is not driven, the modulation layer 2210 does not modulate the light beams, i.e., hinders the passing of the light beams. It is noted that the first driving layer 2221 is shown in FIG. 2 to be located at a lower surface of the modulation layer 2210. Alternatively, the first driving layer 2221 can also be located at an upper surface of the modulation layer 2210, or one driving layer is provided at the lower surface and the other driving layer is provided at the upper surface of the modulation layer 2210, respectively.

[0050] In embodiments where the display component 2100 provides three-dimensional light beams, the modulation layer 2210 can modulate the intensity, polarization intensity, etc. of the three-dimensional light beams and provide the modulated light beams to corresponding view directions. In embodiments where the display component 2100 provides two-dimensional light beams, the modulation layer 2210 is further configured to convert the two-dimensional light beams to three-dimensional light beams. For example, an array of multi-beam elements can be arranged in the modulation layer 2210 to generate multiple directional light beams having different directions from the two-dimensional light beams as the three-dimensional light beams, and in turn, the modulation layer 2210 modulates the generated three-dimensional light beams, as will be described in further detail below.

[0051] According to some examples, the modulation layer 2210 can be composed of a liquid crystal material, which can also be referred to as a liquid crystal layer or a liquid crystal light valve, for example. The liquid crystal material composing the modulation layer 2210 can be any high-molecular liquid crystal material having a liquid crystal state, such as a typical N-type liquid crystal material or a P-type liquid crystal material, which is not specifically limited by embodiments of the present disclosure. As described above, the liquid crystal can have an electro-optic effect under the action of an electric field. Therefore, the driving voltage signal can be applied on the first driving layer 2221 to generate an electric field at the first driving layer, so as to adjust the orientation of the liquid crystal in the liquid crystal layer by the generated electric field to modulate the light beams.

[0052] According to some examples, the first drive layer 2221 can include a transparent conductive material, such as indium tin oxide (ITO), aluminum-doped zinc oxide (AZO), or any other transparent material with conductive function, embodiments of the present disclosure are not limited in this regard. In general, the drive layer can be formed by depositing a transparent conductive material (e.g., an ITO film) on a substrate such as glass, for example, using techniques such as physical vapor deposition, sputter deposition, and the like. At this time, the first drive layer is actually composed of the substrate and the transparent conductive film deposited thereon.

[0053] As described above, the driving mode for the modulation layer 2210 such as a liquid crystal layer in the prior art is generally single-sided driving (e.g., only one drive layer) or double-sided driving (e.g., there are two drive layers above and below) using an alternating current signal, but in these driving modes, the alternating magnetic field generated by the alternating current signal can cause electromagnetic interference to other components above and below the modulation assembly 2200. For example, by way of example and not limitation, the other component can be the touch assembly 2300 shown in FIG. 2 above the modulation layer 2210, which can include a touch layer 2310 and a second drive layer 2321 on the surface of the touch layer 2310, where the second drive layer 2321 can be configured to drive the touch layer 2310 under the action of a second drive signal to achieve touch and / or control based on the modulated light beam. It should be noted that the second drive layer 2321 is shown in FIG. 2 as being located on the lower surface of the touch layer 2310. Alternatively, the second drive layer 2321 can also be located on the upper surface of the touch layer 2310, or one drive layer is provided on the lower surface and the upper surface of the touch layer 2310, respectively. According to some examples, the second drive layer 2321 can include a transparent conductive material, such as indium tin oxide (ITO), aluminum-doped zinc oxide (AZO), or any other transparent material with conductive function, embodiments of the present disclosure are not limited in this regard. In general, the drive layer can be formed by depositing a transparent conductive material (e.g., an ITO film) on a substrate such as glass, for example, using techniques such as physical vapor deposition, sputter deposition, and the like. At this time, the second drive layer is actually composed of the substrate and the transparent conductive film deposited thereon.

[0054] When an AC signal is applied to the first driving layer 2221 to drive the modulation layer 2210, the generated alternating magnetic field can interfere with the touch operation of the touch component by applying pressure to the second driving layer 2321 of the touch component 2300, for example, causing touch misreporting, touch ghosting, and the like. To solve this problem, in the embodiments of the present disclosure, the first driving signal and the second driving signal can be synchronized based on a synchronization signal. The synchronization signal can be generated by any one of the display component 2100, the modulation component 2200, and the touch component 2300 shown in FIG. 2. Alternatively, the synchronization signal can be obtained from an external device or system of the display device 2000 shown in FIG. 2; for example, in the case where the display device 2000 is applied to a mobile device (for example, a mobile phone), the synchronization signal can be obtained from the operating system of the mobile device.

[0055] In the case where the first driving signal and the second driving signal are synchronized based on the synchronization signal, it is possible to make the second driving signal also in state switching (for example, the touch component is not in the scanning state) during the state switching of the first driving signal, thereby reducing the interference of the alternating magnetic field generated due to the state switching of the first driving signal on the touch component, and avoiding the occurrence of touch misreporting, touch ghosting, and the like.

[0056] FIG. 3 shows a schematic diagram of a synchronization signal and driving signals in an example according to an embodiment consistent with the principles described herein. It should be noted that FIG. 3 is only one example of signal synchronization, and any suitable signal synchronization manner can be selected by those skilled in the art based on actual needs. In addition, the synchronization signal shown in FIG. 3 is a square wave signal; alternatively, the synchronization signal can be any suitable logic signal, such as a rectangular wave signal, a sine wave signal. The horizontal axis of the waveform shown in FIG. 3 represents time, and the vertical axis represents voltage. The maximum voltage of the synchronization signal is usually much smaller than the maximum voltage of the driving signal, for example, the maximum voltage of the synchronization signal can be 1.8v.

[0057] In FIG. 3, t1 indicates the period of the synchronization signal, t2 indicates the period of the first driving signal, and t3 indicates the period of the second driving signal.

[0058] In FIG. 3, t4 indicates the duration of the active level of the synchronization signal. It should be noted that the active level of the synchronization signal shown in FIG. 3 is high. Alternatively, the active level of the synchronization signal can also be low.

[0059] In FIG. 3, t5 indicates the state switching time of the first driving signal, which can represent the state switching time from a positive signal to a negative signal or the state switching time from a negative signal to a positive signal, in which the deflection of the modulation component is achieved, for example.

[0060] In FIG. 3, t6 indicates a state switching time of the second driving signal, which can represent a state switching time from a positive signal to a negative signal or a state switching time from a negative signal to a positive signal, at which a scanning operation of the touch component is implemented, for example.

[0061] According to some examples, as shown in FIG. 3, the period t1 of the synchronization signal, the period t2 of the first driving signal and the period t3 of the second driving signal can be the same, for example, all being 60 Hz, 120 Hz, etc. Alternatively, the period t1 of the synchronization signal, the period t2 of the first driving signal and the period t3 of the second driving signal can have a multiple relationship, for example, the period t3 of the second driving signal can be N times of the period t1 of the synchronization signal, or N times of the period t2 of the first driving signal, where N is a positive integer.

[0062] According to some examples, as shown in FIG. 4, in the case that the first driving signal completes state switching within the duration t4 of the active level of the synchronization signal, that is, the duration t4 can indicate that the first driving signal completes state switching within the duration, at this time, the state switching time t6 of the second driving signal is set to be greater than or equal to the duration t4. In the case that the first driving signal completes state switching within the duration t4 of the active level of the synchronization signal, in order to synchronize the first driving signal and the second driving signal based on the synchronization signal, the modulation component 2200 can generate a synchronization signal based on the first driving signal; the touch component 2300 can generate the second driving signal based on the generated synchronization signal. From the above, it can be known that the synchronization signal at this time is generated by the modulation component 2200 first generating the first driving signal and then generating the synchronization signal based on the generated first driving signal; then, the touch component 2300 generates the second driving signal based on the generated synchronization signal. From the above relationship between the driving signal and the synchronization signal, it can be known that the first driving signal completes state switching within the duration t4 and the second driving signal is in state switching (i.e., the touch component is not in a scanning state), which effectively reduces the interference of the alternating magnetic field generated due to the state switching of the first driving signal on the touch component, avoiding the occurrence of problems such as touch point misreporting and touch ghost point.

[0063] According to some examples, as shown in FIG. 5, in the case that the second driving signal completes the state switching within the duration t4 of the active level of the synchronization signal, that is, the duration t4 can indicate that the second driving signal completes the state switching within the duration, at this time, the state switching time t5 of the first driving signal is set to be less than or equal to the duration t4. In the case that the second driving signal completes the state switching within the duration t4 of the active level of the synchronization signal, in order to synchronize the first driving signal and the second driving signal based on the synchronization signal, the touch component 2300 can generate the synchronization signal based on the second driving signal; the modulation component 2200 can generate the first driving signal based on the generated synchronization signal. From the above, it can be seen that at this time, the synchronization signal is generated by the touch component 2300 first generating the second driving signal and then generating the synchronization signal based on the generated second driving signal; then, the modulation component 2200 generates the first driving signal based on the generated synchronization signal. From the above relationship between the driving signal and the synchronization signal, it can be seen that the second driving signal completes the state switching within the duration t4 and the first driving signal also completes the state switching. That is, the second driving signal is in the state switching or also completes the state switching (i.e., the touch component is not in the scanning state) when the first driving signal completes the state switching, which effectively reduces the interference of the alternating magnetic field generated due to the state switching of the first driving signal on the touch component, and avoids the occurrence of problems such as touch point misreporting, touch ghost point, etc.

[0064] According to some examples, as shown in FIG. 6, the display component 2100 can include a light beam providing layer 2110 and a third driving layer 2121 located on the surface of the light beam providing layer 2110, where the third driving layer 2121 can be configured to drive the light beam providing layer 2110 under the action of a third driving signal to provide a light beam. According to some examples, the third driving layer 2121 can include a transparent conductive material, such as indium tin oxide (ITO), aluminum-doped zinc oxide (AZO), or any other transparent material with conductive function, and the embodiments of the present disclosure do not make specific limitations thereto. Generally, the driving layer can be formed by depositing a transparent conductive material (such as an ITO film) on a substrate such as glass, for example, physical vapor deposition, sputtering deposition, etc. At this time, the third driving layer is actually composed of a substrate and a transparent conductive film deposited thereon.

[0065] The first driving signal, the second driving signal and the third driving signal are synchronized based on the synchronization signal, which can be generated by any one of the display component 2100, the modulation component 2200 and the touch component 2300 shown in FIG. 6. Alternatively, the synchronization signal can be obtained from an external device or system of the display device 2000 shown in FIG. 6; for example, in the case that the display device 2000 is applied to a mobile device (e.g. a mobile phone), the synchronization signal can be obtained from the operating system of the mobile device.

[0066] In the case that the first driving signal, the second driving signal and the third driving signal are synchronized based on the synchronization signal, it can be made that during the state switching of the first driving signal, the second driving signal and the third driving signal are in state switching (e.g. the touch component is not in scanning state, the display component does not provide light beams), thereby reducing the interference of the alternating magnetic field generated due to the state switching of the first driving signal to the touch component and the display component, and avoiding the occurrence of problems such as touch misreporting, touch ghosting, failure to normally provide light beams, etc.

[0067] According to some examples, as shown in FIG. 7, the period t1 of the synchronization signal, the period t2 of the first driving signal, the period t3 of the second driving signal and the period t7 of the third driving signal can be the same, for example, all being 60Hz, 120Hz, etc. Alternatively, the period of the synchronization signal, the period of the first driving signal, the period of the second driving signal and the period of the third driving signal can have a multiple relationship.

[0068] According to some examples, as shown in FIG. 8, in the case that the first driving signal completes the state switching within the duration t4 of the active level of the synchronization signal, that is, the duration t4 can indicate that the first driving signal completes the state switching within the duration, at this time, the state switching time t6 of the second driving signal is set to be greater than or equal to the duration t4 or the state switching time t6 of the second driving signal and the state switching time t8 of the third driving signal are set to be greater than or equal to the duration t4. In the case that the first driving signal completes the state switching within the duration t4 of the active level of the synchronization signal, in order to synchronize the first driving signal, the second driving signal and the third driving signal based on the synchronization signal, the modulation component 2200 can generate the synchronization signal based on the first driving signal; the touch component 2300 can generate the second driving signal based on the generated synchronization signal; the display component 2100 can generate the third driving signal based on the generated synchronization signal. From the above, at this time, the synchronization signal is generated by the modulation component 2200 first generating the first driving signal and then generating the synchronization signal based on the generated first driving signal; then, the touch component 2300 generates the second driving signal based on the generated synchronization signal and the display component 2100 generates the third driving signal based on the generated synchronization signal. From the above relationship between the driving signals and the synchronization signal, in the duration t4, the first driving signal completes the state switching and the second driving signal is in the state switching or the second driving signal and the third driving signal are both in the state switching (that is, the touch component is not in the scanning state and the display component does not provide the light beam), which effectively reduces the interference of the alternating magnetic field generated by the state switching of the first driving signal on the touch component and the display component, avoids the occurrence of problems such as touch point misreporting, touch ghost point, inability to normally provide the light beam and the like.

[0069] According to some examples, as shown in FIG. 9, in the case that the second driving signal completes the state switching within the duration t4 of the active level of the synchronization signal, that is, the duration t4 can indicate that the second driving signal completes the state switching within the duration, at this time, the state switching time t5 of the first driving signal is set to be less than or equal to the duration t4. Preferably, at this time, the state switching time t8 of the third driving signal is set to be greater than or equal to the state switching time t5 of the first driving signal. In the case that the second driving signal completes the state switching within the duration t4 of the active level of the synchronization signal, in order to synchronize the first driving signal, the second driving signal and the third driving signal based on the synchronization signal, the touch component 2300 can generate the synchronization signal based on the second driving signal; the modulation component 2200 can generate the first driving signal based on the generated synchronization signal; and the display component 2100 can generate the third driving signal based on the generated synchronization signal. From the above, it can be known that at this time, the synchronization signal is generated by the touch component 2300 first generating the second driving signal and then generating the synchronization signal based on the generated second driving signal; then, the modulation component 2200 generates the first driving signal based on the generated synchronization signal and the display component 2100 generates the third driving signal based on the generated synchronization signal. From the above relationship between the driving signals and the synchronization signal, it can be known that in the duration t4, the second driving signal completes the state switching and the first driving signal has already completed the state switching or the second driving signal and the third driving signal complete the state switching and the first driving signal has already completed the state switching. That is, the second driving signal and the third driving signal complete the state switching when the first driving signal completes the state switching or the second driving signal and the third driving signal are in the state switching when the first driving signal completes the state switching, which effectively reduces the interference of the alternating magnetic field generated due to the state switching of the first driving signal on the touch component and the display component, avoids the occurrence of problems such as touch point misreporting, touch ghost point, and failure to normally provide a light beam.

[0070] According to some examples, as shown in FIG. 10, in the case that the third driving signal completes the state switching within the duration t4 of the active level of the synchronization signal, that is, the duration t4 can indicate that the third driving signal completes the state switching within the duration, at this time, the state switching time t5 of the first driving signal is set to be less than or equal to the duration t4. Preferably, at this time, the state switching time t6 of the second driving signal is set to be greater than or equal to the state switching time t5 of the first driving signal. In the case that the third driving signal completes the state switching within the duration t4 of the active level of the synchronization signal, in order to synchronize the first driving signal, the second driving signal and the third driving signal based on the synchronization signal, the display component 2100 can generate the synchronization signal based on the third driving signal; the modulation component 2200 can generate the first driving signal based on the generated synchronization signal; and the touch component 2300 can generate the second driving signal based on the generated synchronization signal. From the above, it can be seen that at this time, the synchronization signal is generated by the display component 2200 first generating the third driving signal and then generating the synchronization signal based on the generated third driving signal; then, the modulation component 2200 generates the first driving signal based on the generated synchronization signal and the touch component 2300 generates the second driving signal based on the generated synchronization signal. From the above relationship between the driving signals and the synchronization signal, it can be seen that in the duration t4, the third driving signal completes the state switching and the first driving signal has also completed the state switching or the second driving signal and the third driving signal complete the state switching and the first driving signal has also completed the state switching. That is, the second driving signal and the third driving signal complete the state switching when the first driving signal completes the state switching or the second driving signal and the third driving signal are in the state switching when the first driving signal completes the state switching, which effectively reduces the interference of the alternating magnetic field generated due to the state switching of the first driving signal on the touch component and the display component, avoids the occurrence of problems such as touch point misreporting, touch ghost point, and failure to normally provide a light beam.

[0071] The structure of the display device according to embodiments of the present disclosure is described in further detail below with reference to FIGS. 11-12. FIG. 11 shows a structure schematic of a display device 11000 in an example according to another embodiment consistent with the principles described herein. FIG. 12 shows a structure schematic of a display device 12000 in an example according to another embodiment consistent with the principles described herein. In FIGS. 11 and 12, the modulation component is schematically shown as including a liquid crystal layer, but this is merely by way of example and not limitation.

[0072] As shown in FIG. 11, the display apparatus 11000 can include a display component 11100, a modulation component 11200, and a touch component 11300 located above the modulation component 11200, where the modulation component 11200 can include a modulation layer 11210 and a first driving layer 11221, the touch component 11300 can include a touch layer 11310 and a second driving layer 11311, and the display component 11100 can include a light beam providing layer 11110 and a third driving layer 11111. The light beam providing layer 11110, the third driving layer 11111, the modulation layer 11210, the first driving layer 11221, the touch layer 11310, and the second driving layer 11311 in this embodiment can be substantially similar to the light beam providing layer 2110, the third driving layer 2121, the modulation layer 2210, the first driving layer 2221, the touch layer 2310, and the second driving layer 2321 described above with respect to the display apparatus 2000, and thus repeated description is omitted herein.

[0073] In this embodiment, the display component 11100 can be configured to provide a two-dimensional light beam. For example, the display component 11100 can include an array of organic light emitting diodes (OLEDs) for providing the two-dimensional light beam. Alternatively, the display component 11100 can include a two-dimensional backlight, e.g., a two-dimensional backlight having a surface light source, for generating the two-dimensional light beam. As shown in FIG. 11, the modulation component 11200 can further include an array of multi-beam elements 11230 arranged along the length of the modulation layer and spaced apart from each other, which scatter the two-dimensional light beam to generate a plurality of directional light beams having different directions, e.g., each directional light beam can correspond to a corresponding view direction of a multi-view image.

[0074] In embodiments of the present disclosure, the multi-beam elements in the array of multi-beam elements 11230 can include one or more of a diffractive grating, a micro-reflective element, and a micro-refractive element, where the diffractive grating is configured to diffractively scatter light to generate the plurality of directional light beams, the micro-reflective element is configured to reflectively scatter light to generate the plurality of directional light beams, and the micro-refractive element is configured to refractively scatter light to generate the plurality of directional light beams. In FIG. 11, the array of multi-beam elements 11230 is exemplarily shown as an array of micro-lenses, where the micro-lenses can be regarded as an example of the micro-refractive elements as described above. When the two-dimensional light beam provided by the display component 11100 is incident on the micro-lenses, the micro-lenses can refractively scatter the light incident thereon, thereby generating corresponding directional light beams.

[0075] After the modulation layer 11210 is driven by the driving signals applied to the first driving layer, the modulation layer 11210 modulates the plurality of directional light beams and provides the modulated light beams to different view directions to generate a multi-view image representing a three-dimensional content, i.e., to realize three-dimensional display. When the modulation layer 11210 is not driven, i.e., when no driving signal is applied to the first and second driving layers, the modulation layer 11210 does not modulate the light beams.

[0076] As shown in FIG. 12, the display device 12000 can include a display assembly 12100, a modulation assembly 12200, and a touch assembly 12300 above the modulation assembly 12200, where the modulation assembly 12200 can include a modulation layer 12210 and a first driving layer 12221; the touch assembly 12300 can include a touch layer 12310 and a second driving layer 12321; and the display assembly 12100 can include a light beam providing layer 12110 and a third driving layer 12121. The light beam providing layer 12110, the third driving layer 12121, the modulation layer 12210, the first driving layer 12221, the touch layer 12310, and the second driving layer 12321 in this embodiment can be substantially similar to the light beam providing layer 2110, the third driving layer 2121, the modulation layer 2210, the first driving layer 2221, the touch layer 2310, and the second driving layer 2321 described above with respect to the display device 2000, and thus repeated description is omitted here.

[0077] In this embodiment, the display assembly 12100 can be configured to provide three-dimensional light beams. Specifically, the light beam providing layer 12110 of the display assembly 12100 can include a three-dimensional backlight for providing three-dimensional light beams, which includes a light guide 12110, a multibeam element array 12120, and a light source 12130, as shown in FIG. 12. The multibeam elements in the multibeam element array 12120 are configured to scatter light provided by the light source 12130 and propagating along the light guide 12110 to generate a plurality of directional light beams having different directions, each directional light beam can correspond to a corresponding view direction of a multiview image, for example. The multibeam elements in the multibeam element array 12120 can include one or more of diffractive gratings, micro-reflective elements, and micro-refractive elements, which can be substantially similar to the multibeam element array 11230 described above with respect to the display apparatus 11000. In FIG. 12, the multibeam element array 12120 is exemplarily shown as an array of diffractive gratings arranged on the upper surface of the light guide 12110 with certain spacing. According to the definition herein, a diffractive grating is a structure that provides diffraction of light incident on the diffractive grating, which is capable of diffractively coupling out or scattering out the light guide 12110 to generate a plurality of directional light beams. The plurality of directional light beams are incident on the modulation assembly 12200, the modulation layer 12210 of the modulation assembly 12200 modulates the plurality of directional light beams under the driving of the driving signals and provides the modulated light beams to different view directions to generate a multiview image that can represent three-dimensional content, i.e., to achieve three-dimensional display.

[0078] It is noted that the display assembly, the modulation assembly, and the touch assembly are shown in FIGS. 11 and 12 in a manner separated from each other for ease of showing features of different assemblies of the display apparatus, but this is merely by way of example and without limitation. In practice, the display assembly, the modulation assembly, and the touch assembly can be stacked in sequence from bottom to top, and different assemblies can be bonded together, e.g., by an adhesive material such as an optically clear resin (OCR), an optically clear adhesive (OCA), or the like.

[0079] A method for operating a display apparatus according to embodiments of the present disclosure is described below with reference to FIG. 13. FIG. 13 shows a flowchart of a method 13000 for operating a display apparatus in an example according to embodiments consistent with the principles described herein. The method 13000 shown in FIG. 13 can be used, for example, to operate the display apparatus 2000 described with reference to FIG. 2, the display apparatus 2000 described with reference to FIG. 6, the display apparatus 11000 described with reference to FIG. 11, and the display apparatus 12000 described with reference to FIG. 12. The descriptions above for the apparatus 2000, the display apparatus 11000, and the display apparatus 12000 apply equally to the method 13000 unless explicitly stated otherwise.

[0080] As shown in FIG. 13, method 13000 can include providing a light beam with a display component in the display device, at 13100. Method 13000 can further include applying a first driving signal on a first driving layer of a modulation component of the display device to drive a modulation layer of the modulation component to modulate the received light beam, at 13200. Method 13000 can further include applying a second driving signal on a second driving layer of a touch component of the display device to drive a touch layer of the touch component to realize touch and / or control based on the modulated light beam, at 13300. The display component, the modulation layer and the first driving layer of the modulation component, and the touch layer and the second driving layer of the touch component mentioned in method 13000 can be substantially similar to the corresponding components or layers described above with respect to display devices 2000, 11000 and 12000, and thus are not described again here. In this embodiment, the modulation layer can include a liquid crystal layer, and method 13000 can further include applying the first driving signal to generate an electric field at the first driving layer, and the liquid crystal layer adjusts the orientation of liquid crystal under the action of the electric field to modulate the light beam.

[0081] The first driving signal and the second driving signal are synchronized based on a synchronization signal. Thus, during the state switching of the first driving signal, the second driving signal is in state switching (e.g., the touch component is not in a scanning state), thereby reducing the interference of the alternating magnetic field generated due to the state switching of the first driving signal on the touch component, and avoiding the occurrence of problems such as touch point misreporting and touch ghost point.

[0082] According to some examples, the period of the synchronization signal, the period of the first driving signal and the period of the second driving signal are the same or have a multiple relationship.

[0083] According to some examples, in the case where the first driving signal completes state switching within the duration of the active level of the synchronization signal, the state switching time of the second driving signal is set to be greater than or equal to the duration. In the case where the first driving signal completes state switching within the duration of the active level of the synchronization signal, in order to synchronize the first driving signal and the second driving signal based on the synchronization signal, the modulation component is controlled to generate the synchronization signal based on the first driving signal, and the touch component is controlled to generate the second driving signal based on the generated synchronization signal.

[0084] According to some examples, in a case that the second driving signal completes state switching within a duration of an active level of the synchronization signal, a state switching time of the first driving signal is set to be less than or equal to the duration. In a case that the second driving signal completes state switching within a duration of an active level of the synchronization signal, in order to synchronize the first driving signal and the second driving signal based on the synchronization signal, the touch control component is controlled to generate the synchronization signal based on the second driving signal; the modulation component is controlled to generate the first driving signal based on the generated synchronization signal.

[0085] According to some examples, the providing the light beam by the display component in the display device comprises: applying a third driving signal on a third driving layer of the display component to drive a light beam providing layer of the display component to provide the light beam. The first driving signal, the second driving signal and the third driving signal are synchronized based on the synchronization signal.

[0086] According to some examples, a period of the synchronization signal, a period of the first driving signal, a period of the second driving signal and a period of the third driving signal are same or have a multiple relationship.

[0087] According to some examples, in a case that the first driving signal completes state switching within a duration of an active level of the synchronization signal, a state switching time of the second driving signal is set to be greater than or equal to the duration or a state switching time of the second driving signal and a state switching time of the third driving signal are set to be greater than or equal to the duration; in a case that the second driving signal completes state switching or the third driving signal completes state switching within the duration of the active level of the synchronization signal, a state switching time of the first driving signal is set to be less than or equal to the duration.

[0088] According to some examples, in a case that the first drive signal completes state switching within a duration of an active level of the synchronization signal, to synchronize the first drive signal, the second drive signal and the third drive signal based on the synchronization signal, the modulating component is controlled to generate the synchronization signal based on the first drive signal; the touch component is controlled to generate the second drive signal based on the generated synchronization signal; the display component is controlled to generate the third drive signal based on the generated synchronization signal; in a case that the second drive signal completes state switching within the duration of the active level of the synchronization signal, to synchronize the first drive signal, the second drive signal and the third drive signal based on the synchronization signal, the touch component is controlled to generate the synchronization signal based on the second drive signal; the modulating component is controlled to generate the first drive signal based on the generated synchronization signal; the display component is controlled to generate the third drive signal based on the generated synchronization signal; and in a case that the third drive signal completes state switching within the duration of the active level of the synchronization signal, to synchronize the first drive signal, the second drive signal and the third drive signal based on the synchronization signal, the display component is controlled to generate the synchronization signal based on the third drive signal; the modulating component is controlled to generate the first drive signal based on the generated synchronization signal; the touch component is controlled to generate the second drive signal based on the generated synchronization signal.

[0089] According to some examples, the modulating layer comprises a liquid crystal layer, and the method further comprises: applying the first drive signal to generate an electric field at the first drive layer, the liquid crystal layer adjusting orientation of liquid crystal in the liquid crystal layer under action of the electric field to modulate the light beam.

[0090] According to some examples, at least one of the first drive layer, the second drive layer and the third drive layer comprises a transparent conductive material.

[0091] According to some examples, the modulating layer, when driven by the first drive signal, passes the light beam and changes intensity of the passed light beam, and when not driven, hinders passing of the light beam.

[0092] The present disclosure provides, in addition to the display apparatus and corresponding methods described above, an apparatus for operating a display apparatus. The apparatus will be described in detail below in conjunction with the accompanying drawings.

[0093] FIG. 14 shows a block diagram of an apparatus 1400 for operating a display apparatus in an example according to embodiments consistent with the principles described herein.

[0094] Referring to FIG. 14, the device 1400 can include a processor 1401 and a memory 1402. The processor 1401 and the memory 1402 can be connected by a bus 1403.

[0095] The processor 1401 can perform various actions and processes according to programs stored in the memory 1402. Specifically, the processor 1401 can be an integrated circuit chip having a processing capability of signals. The processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The disclosed methods, steps, and logic block diagrams in the embodiments of the present application can be implemented or executed by the processor. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc., which can be of X86 architecture or ARM architecture.

[0096] The memory 1402 stores computer instructions that, when executed by the processor 1401, implement the above-described methods. The memory 1402 can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. The non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example, and not limitation, many forms of RAM can be used, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct Rambus dynamic random access memory (DR RAM). It should be noted that the memory of the methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0097] According to yet another embodiment of the present disclosure, a computer-readable recording medium is also provided. FIG. 15 shows a schematic diagram of a medium 1500 in an example according to an embodiment consistent with the principles described herein.

[0098] As shown in FIG. 15, the medium 1500 has stored thereon computer-executable instructions 1510. When the computer-executable instructions 1510 are executed by a processor, the method according to the embodiments of the present disclosure described with reference to the above drawings can be performed. The computer-readable recording medium in the embodiments of the present disclosure can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. The non-volatile memory can be a read only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (EPROM), an electrically erasable programmable read only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example, and not limitation, a number of forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM). It should be noted that the memory of the method described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0099] According to yet another embodiment of the present disclosure, a computer program product is also provided. The product can include computer-executable instructions. The computer-executable instructions, when executed by a processor, cause the processor to perform the method as described above.

[0100] As used herein, the article "a" is intended to have its plain English meaning, i.e., "one or more." For example, "a multi-beam element" means one or more multi-beam elements, and thus "the multi-beam element" means "(one or more) multi-beam element" here. Further, any reference herein to "top," "bottom," "upper," "lower," "up," "down," "front," "back," "first," "second," "left," or "right" is not intended to be limiting herein. Further, the term "substantially" as used herein means a majority of, or nearly all of, or all of, or an amount in a range of about 51% to about 100%. Further, examples herein are intended to be illustrative only and presented for discussion purposes and are not to be taken as limiting.

[0101] Certain terminology is used herein for the purpose of reference only. For example, "first", "second" and / or "third" etc. can be used to identify features that are to be interpreted as equivalents under the doctrine of equivalents. It should be understood that no or more such terms are to be construed as limitations but rather in the context of this specification as a reference to a particular region or feature that can include some or all of the features and functions described herein. In addition, it should be understood that the use of certain terminology or words such as, for example, "include", "have", "contain", and / or "comprise" or variations thereof does not necessarily exclude the possibility of the thing, material or article including additional features or elements.

[0102] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0103] Accordingly, examples and embodiments of a display device and method of operation thereof have been described. It should be understood that the foregoing examples are merely illustrative of a number of specific examples that represent the principles of what the inventor has learned during the development of the application. It should be readily apparent to those of ordinary skill in the art that numerous other arrangements can be readily devised without departing from the scope as defined by the following claims.

Claims

1. A display device, comprising: a display component configured to provide a light beam; a modulation component, the modulation component comprising a modulation layer and a first driving layer located on a surface of the modulation layer, the first driving layer configured to drive the modulation layer under the action of a first driving signal to modulate the received light beam; and a touch component, the touch component comprising a touch layer and a second driving layer located on a surface of the touch layer, the second driving layer configured to drive the touch layer under the action of a second driving signal to realize touch and / or control based on the modulated light beam, wherein the first driving signal and the second driving signal are synchronized based on a synchronization signal. 2.The display device of claim 1, wherein a period of the synchronization signal, a period of the first driving signal and a period of the second driving signal are the same or have a multiple relationship; in a case where the first driving signal completes a state switching within a duration of an active level of the synchronization signal, a state switching time of the second driving signal is set to be greater than or equal to the duration; in a case where the second driving signal completes a state switching within a duration of an active level of the synchronization signal, a state switching time of the first driving signal is set to be less than or equal to the duration. In order to synchronize the first driving signal and the second driving signal based on the synchronization signal:

3. The display device of claim 2, wherein, in a case where the first driving signal completes a state switching within a duration of an active level of the synchronization signal, the modulation component generates the synchronization signal based on the first driving signal; the touch component generates the second driving signal based on the generated synchronization signal; in a case where the second driving signal completes a state switching within a duration of an active level of the synchronization signal, the touch component generates the synchronization signal based on the second driving signal; the modulation component generates the first driving signal based on the generated synchronization signal. 4.The display device of claim 1, wherein the display component comprises a light beam providing layer and a third driving layer located on a surface of the light beam providing layer, the third driving layer configured to drive the light beam providing layer under the action of a third driving signal to provide the light beam, wherein the first driving signal, the second driving signal and the third driving signal are synchronized based on the synchronization signal; a period of the synchronization signal, a period of the first driving signal, a period of the second driving signal and a period of the third driving signal are the same or have a multiple relationship; in a case where the first driving signal completes a state switching within a duration of an active level of the synchronization signal, a state switching time of the second driving signal is set to be greater than or equal to the duration or a state switching time of the second driving signal and a state switching time of the third driving signal are set to be greater than or equal to the duration. ​ In a case where the second driving signal completes the state switching within a duration of an active level of the synchronization signal or the third driving signal completes the state switching, a state switching time of the first driving signal is set to be less than or equal to the duration.

5. The display device of claim 4, wherein, To synchronize the first driving signal, the second driving signal and the third driving signal based on the synchronization signal: In a case where the first driving signal completes the state switching within a duration of an active level of the synchronization signal, the modulation component generates the synchronization signal based on the first driving signal; The touch component generates the second driving signal based on the generated synchronization signal; The display component generates the third driving signal based on the generated synchronization signal; In a case where the second driving signal completes the state switching within a duration of an active level of the synchronization signal, the touch component generates the synchronization signal based on the second driving signal; The modulation component generates the first driving signal based on the generated synchronization signal; The display component generates the third driving signal based on the generated synchronization signal; In a case where the third driving signal completes the state switching within a duration of an active level of the synchronization signal, the display component generates the synchronization signal based on the third driving signal; The modulation component generates the first driving signal based on the generated synchronization signal; The touch component generates the second driving signal based on the generated synchronization signal. The modulation layer includes a liquid crystal layer configured to modulate the light beam by adjusting an orientation of liquid crystal in the liquid crystal layer under an action of an electric field generated in the first driving layer by the first driving signal.

6. The display device of claim 1, wherein, The modulation layer passes the light beam and changes an intensity of the passed light beam when being driven by the first driving signal, and hinders the passing of the light beam when not being driven.

7. The display device of claim 1, wherein, At least one of the first driving layer, the second driving layer and the third driving layer includes a transparent conductive material.

8. The display device of claim 4, wherein, The light beam is a two-dimensional light beam, and the modulation component further includes an array of multi-beam elements arranged in the modulation layer, a multi-beam element in the array of multi-beam elements is configured to scatter the two-dimensional light beam to generate a plurality of directional light beams having different directions.

9. The display device of claim 1, wherein, The light beam is a three-dimensional light beam, and the display component includes a backlight, the backlight includes an array of multi-beam elements, a multi-beam element in the array of multi-beam elements is configured to scatter light to generate a plurality of directional light beams having different directions as the three-dimensional light beam.

10. The display device of claim 1, wherein, The multi-beam element in the array of multi-beam elements includes one or more of a diffraction grating configured to diffractively scatter light to generate the plurality of directional light beams, a micro-reflective element configured to reflectively scatter light to generate the plurality of directional light beams, and a micro-refractive element configured to refractively scatter light to generate the plurality of directional light beams.

11. The display device of claim 9 or 10, wherein, 12. A method for operating a display device, comprising: providing a light beam with a display component in the display device; ​ applying a first driving signal on a first driving layer of a modulation component of the display device to drive a modulation layer of the modulation component to modulate a received light beam; and applying a second driving signal on a second driving layer of a touch component of the display device to drive a touch layer of the touch component to realize touch and / or control based on the modulated light beam, wherein the first driving signal and the second driving signal are synchronized based on a synchronization signal.

13. The method of claim 12, wherein a period of the synchronization signal, a period of the first driving signal and a period of the second driving signal are same or have a multiple relationship; in a case that the first driving signal completes a state switching in a duration of an active level of the synchronization signal, a state switching time of the second driving signal is set to be greater than or equal to the duration; in a case that the second driving signal completes a state switching in the duration of the active level of the synchronization signal, a state switching time of the first driving signal is set to be less than or equal to the duration.

14. The method of claim 13, wherein, In order to synchronize the first driving signal and the second driving signal based on the synchronization signal: in a case that the first driving signal completes a state switching in a duration of an active level of the synchronization signal, the modulation component is controlled to generate the synchronization signal based on the first driving signal; the touch component is controlled to generate the second driving signal based on the generated synchronization signal; in a case that the second driving signal completes a state switching in the duration of the active level of the synchronization signal, the touch component is controlled to generate the synchronization signal based on the second driving signal; the modulation component is controlled to generate the first driving signal based on the generated synchronization signal.

15. The method of claim 12, wherein, the providing the light beam by the display component in the display device comprises: applying a third driving signal on a third driving layer of the display component to drive a light beam providing layer of the display component to provide the light beam, wherein the first driving signal, the second driving signal and the third driving signal are synchronized based on the synchronization signal; a period of the synchronization signal, a period of the first driving signal, a period of the second driving signal and a period of the third driving signal are same or have a multiple relationship; in a case that the first driving signal completes a state switching in a duration of an active level of the synchronization signal, a state switching time of the second driving signal is set to be greater than or equal to the duration or a state switching time of the second driving signal and a state switching time of the third driving signal are set to be greater than or equal to the duration; in a case that the second driving signal completes a state switching or the third driving signal completes a state switching in the duration of the active level of the synchronization signal, a state switching time of the first driving signal is set to be less than or equal to the duration.

16. The method of claim 15, wherein, In order to synchronize the first driving signal, the second driving signal and the third driving signal based on the synchronization signal: in a case that the first driving signal completes a state switching in a duration of an active level of the synchronization signal, the modulation component is controlled to generate the synchronization signal based on the first driving signal; the touch component is controlled to generate the second driving signal based on the generated synchronization signal; in a case that the second driving signal completes a state switching in the duration of the active level of the synchronization signal, the touch component is controlled to generate the synchronization signal based on the second driving signal; the modulation component is controlled to generate the first driving signal based on the generated synchronization signal. in a case where the first driving signal completes state switching within a duration of an effective level of the synchronization signal, controlling the modulation component to generate the synchronization signal based on the first driving signal, controlling the touch component to generate the second driving signal based on the generated synchronization signal, and controlling the display component to generate the third driving signal based on the generated synchronization signal; in a case where the second driving signal completes state switching within a duration of an effective level of the synchronization signal, controlling the touch component to generate the synchronization signal based on the second driving signal, controlling the modulation component to generate the first driving signal based on the generated synchronization signal, and controlling the display component to generate the third driving signal based on the generated synchronization signal; and in a case where the third driving signal completes state switching within a duration of an effective level of the synchronization signal, controlling the display component to generate the synchronization signal based on the third driving signal, controlling the modulation component to generate the first driving signal based on the generated synchronization signal, and controlling the touch component to generate the second driving signal based on the generated synchronization signal. The modulation layer includes a liquid crystal layer, and the method further includes applying the first driving signal to generate an electric field at the first driving layer, and the liquid crystal layer adjusts an orientation of liquid crystals in the liquid crystal layer under the electric field to modulate the light beam.

17. The method of claim 12, wherein, At least one of the first driving layer, the second driving layer, and the third driving layer includes a transparent conductive material.

18. The method of claim 15, wherein, The modulation layer allows the light beam to pass through and changes an intensity of the passing light beam when driven by the first driving signal, and blocks the light beam from passing through when not driven.

19. The method of claim 12, wherein, 20. An apparatus for operating a display device, comprising: a processor, and a memory storing computer-executable instructions that, when executed by the processor, cause the processor to perform the method of any of claims 12-19. The computer-executable instructions, when executed by the processor, cause the processor to perform the method of any of claims 12-19.

21. A computer-readable recording medium storing computer-executable instructions, wherein, The computer-executable instructions, when executed by the processor, cause the processor to perform the method of any of claims 12-19.

22. A computer program product comprising computer-executable instructions, wherein, The computer-executable instructions, when executed by the processor, cause the processor to perform the method of any of claims 12-19.

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