CN113971938B - Partitioned lighting method, device, equipment and computer storage medium - Google Patents
Partitioned lighting method, device, equipment and computer storage medium Download PDFInfo
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- CN113971938B CN113971938B CN202111579891.7A CN202111579891A CN113971938B CN 113971938 B CN113971938 B CN 113971938B CN 202111579891 A CN202111579891 A CN 202111579891A CN 113971938 B CN113971938 B CN 113971938B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
Abstract
The application is applicable to the technical field of display, and provides a partitioned lighting method, a device, equipment and a computer storage medium, which are applied to a passive lighting system, wherein the passive lighting system comprises a light source array and a display chip, and the method comprises the following steps: acquiring a target light cone angle corresponding to a target imaging range; determining a light source area corresponding to the pixel partition on the display chip on the light source array according to the target light cone angle; when the pixel partition is operated and the light source area emits light, the light cone angle generated by the pixel partition is consistent with the target light cone angle. According to the method, when the pixel partition works and the light source area emits light, the light cone angle generated by the pixel partition is consistent with the target light cone angle corresponding to the target imaging range, the problem of stray light caused by the fact that the light cone angle generated by the pixel partition is not consistent with the target light cone angle is effectively solved, the light energy provided by the light source array in the passive lighting system is fully utilized, and further the utilization rate of the light energy in the light source array can be improved.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a method, an apparatus, a device, and a computer storage medium for partitioned lighting.
Background
The common light-emitting principle of the non-self-luminous pixel image display chip is that an illumination light Beam emitted by an illumination light source is used as incident light, the incident light is reflected by a Polarizing Beam Splitter (PBS) and then irradiates on a display chip, and the direction of the incident light entering the display chip is reflected or transmitted due to the influence of the design structure of the display chip, so that pixels in a liquid crystal layer of the display chip are in different bright and dark states, and the light emission of the display chip is realized.
When the illumination light source is a surface light source, because the illumination light emitted by the surface light source corresponds to the area of the surface light source, an illumination range with a large light included angle can be projected through the display chip, part of the illumination light in the generated light with a large illumination range can be reflected again by irradiating the mechanical structure in the imaging optical system, and the light reflected again can enter the subsequent imaging optical system to form stray light.
Disclosure of Invention
The embodiment of the application provides a regional illumination method, a device and equipment and a computer storage medium, which can avoid the formation of stray light in an imaging optical system.
In a first aspect, an embodiment of the present application provides a method for partitioned illumination, which is applied in a passive illumination system, where the passive illumination system includes a light source array and a display chip, and the method includes:
acquiring a target light cone angle corresponding to a target imaging range;
determining a light source area corresponding to the pixel partition on the display chip on the light source array according to the target light cone angle;
when the pixel partition is operated and the light source area emits light, the light cone angle generated by the pixel partition is consistent with the target light cone angle.
In the illumination method, the target light cone angle is determined according to the actual imaging range, and the light source area corresponding to the pixel partition is reversely selected based on the target light cone angle, so that the light cone angle generated by the pixel partition is consistent with the target light cone angle corresponding to the actual imaging, and the problem of stray light caused by the fact that the light cone angle generated by the pixel partition is not consistent with the target light cone angle is avoided, and the problem of stray light caused by the fact that light rays emitted from the light source array project a light ray range which is not consistent with the target light cone angle through a display chip is effectively solved.
In one embodiment, the light source array is formed by arranging a plurality of sub light sources, each sub light source corresponds to one control switch, and the control switches are used for controlling the lighting states of the sub light sources.
In the embodiment, the light source array comprises a plurality of sub light sources, and each sub light source in the light source array is independently provided with a control switch, so that the light sources in the light source area range in the light source array can be rapidly adjusted according to different practical application conditions, and the functions and the application range of the light source array are expanded.
In one embodiment, when the pixel partition works and the sub-light sources in the light source area corresponding to the pixel partition are in the lighting state, the sub-light sources outside the light source area are in the extinguishing state.
Different light source areas are arranged aiming at different pixel partitions, so that light rays emitted by each light source area can meet the work of the corresponding pixel partition under the condition of saving light energy, and the generation of stray light in a passive lighting system is reduced from the source generated by the light rays.
In one embodiment, when one pixel partition on the display chip is active, other pixel partitions on the display chip are inactive.
According to the practical application scene, the working state of each pixel partition in the display chip can be flexibly adjusted. Because the light cone angle generated by the pixel partition is consistent with the target light cone angle, when the light cone angle generated by the pixel partition enters a subsequent imaging optical system to form a display picture, the time for displaying the picture can be shortened, the picture can be displayed quickly, the imaging precision of the display picture is higher, and the effect is better.
In one embodiment, the display chip includes at least one of an LCD, an LCOS, or a DLP.
In a second aspect, an embodiment of the present application provides a partitioned illumination apparatus, which is applied in a passive illumination system, where the passive illumination system includes a light source array and a display chip, and the apparatus includes:
the acquisition unit is used for acquiring a target light cone angle corresponding to a target imaging range;
the determining unit is used for determining a light source area corresponding to the pixel partition on the display chip on the light source array according to the target light cone angle;
when the pixel partition is operated and the light source area emits light, the light cone angle generated by the pixel partition is consistent with the target light cone angle.
In one embodiment, the light source array is formed by arranging a plurality of sub light sources, each sub light source corresponds to one control switch, and the control switches are used for controlling the lighting states of the sub light sources.
In one embodiment, when the pixel partition works and the sub-light sources in the light source area corresponding to the pixel partition are in the lighting state, the sub-light sources outside the light source area are in the extinguishing state.
In a third aspect, an embodiment of the present application provides a terminal device, where the terminal device includes: a processor and a memory, the memory for storing a computer program, the processor for invoking and running the computer program from the memory, causing the apparatus to perform the method of any of the first and second aspects.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, in which a computer program is stored, which, when executed by a processor, causes the processor to perform the method of any one of the first and second aspects.
In a fifth aspect, an embodiment of the present application provides a computer program product, where the computer program product includes: computer program code which, when executed by a computer, causes the computer to perform the method of any of the first and second aspects.
It is understood that the beneficial effects of the second aspect to the fifth aspect can be referred to the related description of the first aspect, and are not described herein again.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an LCOS chip according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating an embodiment of the present application showing a pixel in an LCOS display chip in an OFF state;
FIG. 3 is a schematic diagram of a pixel in an LCOS display chip provided in an embodiment of the present application in an ON state;
fig. 4 is a schematic diagram illustrating different light angles under an LCOS chip area light source according to an embodiment of the present application;
FIG. 5 is a schematic flow chart of a zonal illumination method provided by an embodiment of the present application;
FIG. 6 is a schematic view of a scene of a method for zone illumination according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a partitioned lighting device provided in an embodiment of the present application;
fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
The common light-emitting principle of the non-self-luminous pixel image display chip is that an illumination light Beam emitted by an illumination light source is used as incident light, the incident light is reflected by a Polarizing Beam Splitter (PBS) and then irradiates on a display chip, and the direction of the incident light entering the display chip is reflected or transmitted due to the influence of the design structure of the display chip, so that pixels in a liquid crystal layer of the display chip are in different bright and dark states, and the light emission of the display chip is realized.
The light emitting principle of the LCOS display chip will be described below by taking the structure of the LCOS display chip as an example.
As shown in fig. 1, the LCOS chip includes an upper glass substrate, a liquid crystal layer, a pixel layer, and a lower driving circuit, which are sequentially included in the structure of the LCOS chip, as shown in fig. 1. The reflective illumination system based on the LCOS display chip generally includes: an illumination light source, a Polarizing Beam Splitter (PBS), which is an optical element capable of splitting one incident light Beam into two light beams having mutually perpendicular propagation directions, and an LCOS display chip.
Based on the structure of the LCOS display chip, the light emitting principle of one pixel in the LCOS display chip is as follows: the illumination light source emits a light beam S as incident light, the light beam S is reflected by the PBS and then irradiates on the LCOS display chip, when no external voltage is applied to the pixel in a liquid crystal layer of the LCOS display chip, the polarization direction of the input light beam S does not deflect after passing through the liquid crystal layer, the light beam S is reflected and output and then reflected by the PBS, the light beam S returns along an input path and cannot enter a subsequent imaging optical system, and the pixel is in an OFF state, which is shown in figure 2; ON the contrary, when the pixel in the liquid crystal layer of the LCOS chip has an applied voltage, the polarization direction of the input light beam S is deflected after passing through the liquid crystal layer, the light beam S is reflected to form a light beam P, and then the light beam P directly transmits through the PBS and enters the subsequent imaging optical system, and the pixel is in an "ON" state, as shown in fig. 3.
In practical use, a pixel in the liquid crystal layer of the LCOS chip in the "ON" state is equivalent to a flat mirror, which can reflect the received light beam into a subsequent imaging optical system to present an image frame.
As shown in fig. 4, when the illumination light source in the reflective illumination system of the LCOS display chip uses the surface light source, the illumination light emitted by the surface light source corresponds to the area of the surface light source, so that the illumination range with a large included angle of light can be projected by the display chip as shown in Y in fig. 4, and the application requirement can be met only by using the included angle of light shown as X in fig. 4, so that part of the illumination light in the illumination range with a large included angle of light may be reflected by the mechanical structure in the imaging optical system, so that the reflected light enters the subsequent imaging optical system to form stray light, and the generation of the stray light further affects the imaging effect of the imaging optical system.
Therefore, the zonal illumination method provided by the application determines the target light cone angle according to the actual imaging range, and reversely selects the light source area corresponding to the pixel zone based on the target light cone angle, so that the light cone angle generated by the pixel zone is consistent with the target light cone angle corresponding to the actual imaging, and the problem of stray light caused by the fact that the light cone angle generated by the pixel zone is not consistent with the target light cone angle is avoided, and the problem of stray light caused by the fact that light rays emitted from the light source array project a light ray range which is not consistent with the target light cone angle through a display chip is effectively solved.
The following describes the technical solution of the present application in detail by taking an LCOS chip as an example and referring to the drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The embodiment of the present application, as shown in fig. 5, provides a method for partitioned illumination, which is applied to a passive illumination system, where the passive illumination system includes a light source array, a display chip, and a polarization beam splitter prism. It is understood that the Display chip in the passive lighting system may be a Liquid Crystal Display (LCD) LCD chip, a Liquid Crystal On Silicon (LCOS) Display chip, or a Digital Micromirror Device (DMD) Display chip based On a Digital Light Processing (DLP) projection technology. The LCD liquid crystal display chip realizes imaging based on a transmission type principle, and the LCOS display chip and the DMD display chip based on a DLP projection technology realize imaging based on a reflection type principle. That is, the illumination system may be a reflective-based illumination system or a transmissive-based illumination system.
Of course, the display chip may also need to emit light by means of an array of light sources (i.e., illumination light sources), other display chips that are not self-emissive in themselves. The present application does not limit the display chip in the passive lighting system.
In one possible embodiment, the light source array in the passive lighting system is formed by arranging a plurality of sub light sources, each sub light source corresponds to a control switch, and the control switches are used for controlling the lighting states of the sub light sources. That is, each control switch can independently control whether the corresponding sub-light source is turned on or not. The light source in the light source area range in the light source array can be adjusted quickly according to different practical application conditions, and the functions and the application range of the light source array are expanded.
In some embodiments, the light source area of the light source array may also be formed by a pixilated light source arrangement. The arrangement of the light source regions in the light source array is not limited in any way.
Referring to fig. 5, the zone illumination method includes the following steps S101 to S102.
And S101, acquiring a target light cone angle corresponding to a target imaging range.
By way of example and not limitation, assuming that the display chip, the light source array and the polarization splitting prism in the passive illumination system are installed in the imaging optical system, the target light cone angle refers to the included angle of the light rays required to be emitted by the passive illumination system when normal image display can be achieved in the imaging optical system, and based on this example, the target imaging range refers to the range in which the imaging optical system can form normal image display, that is, the normal image display of the imaging optical system meets the aperture requirement of the imaging optical system.
S102, determining a light source area corresponding to the pixel partition on the display chip on the light source array according to the target light cone angle; when the pixel partition is operated and the light source area emits light, the light cone angle generated by the pixel partition is consistent with the target light cone angle.
Still taking an imaging optical system equipped with a display chip, a light source array and a polarization splitting prism in a passive illumination system as an example, the pixel partition work may refer to that the display chip in the imaging optical system performs sequential work according to a preset work logic to display a picture state.
And after a target light cone angle corresponding to the target imaging range is obtained, determining a light source area corresponding to the pixel partition on the display chip on the light source array according to the target light cone angle based on the emission principle of the polarization beam splitter prism.
It should be noted that in order to increase the utilization rate of light energy in the passive illumination system, a fine division manner may be adopted for the pixel partitions of the display chip. In one possible embodiment, the pixel partitions of the display chip are partitioned on a pixel-by-pixel basis. For example, in the schematic structure diagram of the LCOS display chip shown in fig. 1, each pixel in the pixel layer of the LCOS display chip may be determined as one pixel partition. And determining a light source area corresponding to each pixel partition on the display chip on the light source array according to the target light cone angle, namely each pixel partition of the display chip can have the corresponding light source area, so that the formation of stray light in a subsequent imaging optical system is reduced.
After a target light cone angle corresponding to a target imaging range is obtained, a light source area corresponding to a pixel partition on a display chip on a light source array is determined according to the target light cone angle, then the light source area corresponding to the pixel partition on the display chip is determined from the light source array based on the reflection principle of a polarization beam splitter prism, so that when the pixel partition works and the light source area corresponding to the pixel partition emits light, namely the light source in the light source area corresponding to the pixel partition is lightened, and when an external voltage is applied to the pixel partition, the light cone angle formed by the light emitted from the light source area after the light is emitted through the polarization beam splitter prism and the pixel partition is basically consistent with the target light cone angle corresponding to the target imaging range.
In the embodiment of the application, when the pixel partition works and the sub-light sources in the light source area corresponding to the pixel partition are in the lighting state, the sub-light sources outside the light source area are in the extinguishing state. Different light source areas are arranged aiming at different pixel partitions, so that light rays emitted by each light source area can meet the work of the corresponding pixel partition under the condition of saving light energy, and stray light in a passive lighting system is reduced from the source generated by the light rays.
In one embodiment, when one pixel partition on the display chip is active, other pixel partitions on the display chip are inactive. Thus, each pixel partition on the display chip is traversed in sequence, and one frame of picture can be displayed. According to the practical application scene, the working state of each pixel partition in the display chip can be flexibly adjusted. Because the light cone angle generated by the pixel partition is consistent with the target light cone angle, when the light cone angle generated by the pixel partition enters a subsequent imaging optical system to form a display picture, the time for displaying the picture can be shortened, the picture can be displayed quickly, the imaging precision of the display picture is higher, and the effect is better.
Fig. 6 is a schematic view of a scene of a method for lighting a partition according to an embodiment of the present application. Referring to fig. 6, assuming that the LCOS display chip includes a pixel 1 and a pixel 2, a light source area corresponding to the pixel 1 on the LCOS display chip on the light source array is determined to be A1B1 according to a target light cone angle corresponding to the target imaging range, and a light source area corresponding to the pixel 2 on the LCOS display chip on the light source array is determined to be A2B2 according to the target light cone angle corresponding to the target imaging range.
It should be noted that, while the light sources in the light source region A1B1 on the light source array are in the on state, the light sources corresponding to the other light source regions on the light source array are in the off state, that is, the light sources within the light source region AA1 and the light source region B1B on the light source array are in the off state as in fig. 6.
Similarly, when the pixel 1 works, other pixels on the LCOS display chip do not work, that is, in this example, when the pixel 1 works, the pixel 2 does not work. That is to say, when the pixel point 1 in the liquid crystal layer of the LCOS display chip has an external voltage, there is no external voltage ON the pixel point 2, so that the pixel point 1 is in an "ON" state, and the pixel point 2 is in an "OFF" state.
Then, based on the above example, when the pixel 1 is in operation, that is, when the light source in the light source area A1B1 on the light source array corresponding to the pixel 1 is in a lit state, and the pixel 1 in the liquid crystal layer of the LCOS display chip has an external voltage, the polarization direction of the light emitted by the light source is deflected after the light is input into the liquid crystal layer of the LCOS display chip, the light is reflected by the polarization beam splitter prism, and the angle range of the reflected light is consistent with the light cone angle. At this moment, the pixel point 2 does not work, even if part of the light sources in the light source area A2B2 corresponding to the pixel point 2 are lighted and lighted due to the working of the pixel point 1 and the light sources in the light source area A1B1 on the corresponding light source array, because the pixel point 2 has no external voltage in the liquid crystal layer of the LCOS display chip, the polarization direction of the input part of the light after passing through the liquid crystal layer does not deflect, the light is reflected along the input path through the polarization splitting prism, namely, the pixel point 2 is in an OFF state, so the pixel point 2 cannot be influenced by the working of the pixel point 1.
Thus, each pixel partition on the LCOS display chip is traversed in sequence, namely firstly the pixel point 1 works, the pixel point 2 does not work, the emergent light cone angle of the light ray emitted from the light source area A1B1 corresponding to the pixel point 1 after passing through the polarization beam splitter and the pixel point 1 is consistent with the target light cone angle, then the pixel point 1 does not work, the pixel point 2 works, the emergent light cone angle of the light ray emitted from the light source area A2B2 corresponding to the pixel point 2 after passing through the polarization beam splitter and the pixel point 2 is consistent with the target light cone angle, when the working state of the pixel point 1 and the pixel point 2 is switched continuously, the reflected light ray enters the subsequent imaging optical system in sequence and can display a frame of picture, the imaging is completed by utilizing the partition lighting method provided by the embodiment of the application, and the reflected light cone angles of the pixel point 1 and the pixel point 2 in the LCOS display chip are consistent with the target light cone angle, thus, a fine and accurate imaging effect can be achieved.
It should be understood that the above example is illustrated by a case where the LCOS chip includes the pixel 1 and the pixel 2, and different pixel partitions may exist in the display chip according to practical application, for example, the pixel partition of the display chip may include the pixel partition 1, the pixel partition 2, … …, and the pixel partition n, and each pixel partition in the display chip may be scanned in a traversal manner by using the partition illumination method provided by the present application, that is, customized illumination of the pixel area may be achieved, and a finally displayed picture is finer. The present application does not limit the number and conditions of pixel partitions in the display chip.
It is understood that in the present application, the pixel partitions of the display chip correspond to the light source partitions in the light source array.
In the illumination method, the target light cone angle is determined according to the actual imaging range, and the light source area corresponding to the pixel partition is reversely selected based on the target light cone angle, so that the light cone angle generated by the pixel partition is consistent with the target light cone angle corresponding to the actual imaging, and the problem of stray light caused by the fact that the light cone angle generated by the pixel partition is not consistent with the target light cone angle is avoided, and the problem of stray light caused by the fact that light rays emitted from the light source array project a light ray range which is not consistent with the target light cone angle through a display chip is effectively solved.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Fig. 7 shows a block diagram of a partitioned lighting device provided in the embodiment of the present application, corresponding to a partitioned lighting method described in the above embodiments, and only the parts related to the embodiment of the present application are shown for convenience of illustration.
Referring to fig. 7, an embodiment of the present application provides a partitioned illumination apparatus, where the partitioned illumination apparatus 200 is applied to a passive illumination system, the passive illumination system includes a light source array and a display chip, and the partitioned illumination apparatus 200 includes:
an obtaining unit 201, configured to obtain a target light cone angle corresponding to a target imaging range;
a determining unit 202, configured to determine, according to the target light cone angle, a light source area corresponding to the pixel partition on the display chip on the light source array;
when the pixel partition is operated and the light source area emits light, the light cone angle generated by the pixel partition is consistent with the target light cone angle.
In one embodiment, the light source array is formed by arranging a plurality of sub light sources, each sub light source corresponds to one control switch, and the control switches are used for controlling the lighting states of the sub light sources.
In one embodiment, when the pixel partition works and the sub-light sources in the light source area corresponding to the pixel partition are in the lighting state, the sub-light sources outside the light source area are in the extinguishing state.
In one embodiment, when one pixel partition on the display chip is active, other pixel partitions on the display chip are inactive.
In one embodiment, the display chip includes at least one of an LCD, an LCOS, or a DLP.
Based on the same inventive concept, as shown in fig. 8, the embodiment of the present application further provides a terminal device, where the terminal device 300 may be a projection device, an Augmented Reality (AR) device, another product facing future technologies, and the like.
As shown in fig. 8, the terminal device 300 of this embodiment includes: a processor 301, a memory 302, and a computer program 303 stored in the memory 302 and operable on the processor 301. The computer program 303 may be executed by the processor 301 to generate instructions, and the processor 301 may implement the steps in the embodiments of the authority authentication method according to the instructions. Alternatively, the processor 301 implements the functions of the modules/units in the above-described device embodiments when executing the computer program 303.
Illustratively, the computer program 303 may be divided into one or more modules/units, which are stored in the memory 302 and executed by the processor 301 to accomplish the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 303 in the terminal device 300.
Those skilled in the art will appreciate that fig. 8 is merely an example of the terminal device 300 and does not constitute a limitation of the terminal device 300 and may include more or less components than those shown, or combine certain components, or different components, for example, the terminal device 300 may further include input-output devices, network access devices, buses, etc.
The Processor 301 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 302 may be an internal storage unit of the terminal device 300, such as a hard disk or a memory of the terminal device 300. The memory 302 may also be an external storage device of the terminal device 300, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the terminal device 300. Further, the memory 302 may also include both an internal storage unit of the terminal device 300 and an external storage device. The memory 302 is used to store computer programs and other programs and data required by the terminal device 300. The memory 302 may also be used to temporarily store data that has been output or is to be output.
The terminal device provided in this embodiment may execute the method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.
Embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the method of the above-mentioned method embodiments.
The embodiment of the present application further provides a computer program product, which when running on a terminal device, enables the terminal device to implement the method of the above method embodiment when executed.
The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, all or part of the processes in the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium and can implement the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable storage medium may include at least: any entity or device capable of carrying computer program code to a photographing apparatus/terminal apparatus, a recording medium, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signal, telecommunication signal, and software distribution medium. Such as a usb-disk, a removable hard disk, a magnetic or optical disk, etc.
Reference throughout this application to "one embodiment" or "some embodiments," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.
In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In addition, in the present application, unless otherwise explicitly specified or limited, the terms "connected," "connected," and the like are to be construed broadly, e.g., as meaning both mechanically and electrically; the terms may be directly connected or indirectly connected through an intermediate medium, and may be used for communicating between two elements or for interacting between two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present application may be understood by those skilled in the art according to specific situations.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A method for partitioned illumination, which is applied to a passive illumination system, the passive illumination system comprises a polarization splitting prism, a light source array and a display chip, the method comprises:
acquiring a target light cone angle corresponding to a target imaging range, wherein the target imaging range is an imaging range of a target image formed by a light source emitted by the light source array after being projected by the polarization beam splitter prism and the display chip;
determining a light source area corresponding to the pixel partition on the display chip on the light source array according to the target light cone angle;
when the pixel partitions work and the light source area emits light, the light cone angle generated after the light is projected by the polarization beam splitter prism and the pixel partitions is consistent with the target light cone angle.
2. The method of claim 1, wherein the light source array is formed by arranging a plurality of sub-light sources, each sub-light source corresponds to a control switch, and the control switches are used for controlling the lighting states of the sub-light sources.
3. The method according to claim 2, wherein when the pixel division is operated and the sub-light sources in the light source regions corresponding to the pixel division are in an on state, the sub-light sources outside the light source regions are in an off state.
4. The method of claim 3, wherein when one pixel partition on the display chip is active, other pixel partitions on the display chip are inactive.
5. The method of any of claims 1-4, wherein the display chip comprises at least one of an LCD, an LCOS, or a DLP.
6. A partitioned illumination device is applied to a passive illumination system, wherein the passive illumination system comprises a polarization splitting prism, a light source array and a display chip, and the device comprises:
the acquisition unit is used for acquiring a target light cone angle corresponding to a target imaging range, wherein the target imaging range is an imaging range of a target image formed by a light source emitted by the light source array after being projected by the polarization beam splitter prism and the display chip;
the determining unit is used for determining a light source area corresponding to the pixel partition on the display chip on the light source array according to the target light cone angle;
when the pixel partitions work and the light source area emits light, the light cone angle generated after the light is projected by the polarization beam splitter prism and the pixel partitions is consistent with the target light cone angle.
7. The apparatus of claim 6, wherein the light source array is formed by arranging a plurality of sub light sources, each sub light source corresponds to a control switch, and the control switches are used for controlling the lighting states of the sub light sources.
8. The apparatus according to claim 7, wherein when the pixel division is operated and the sub-light sources in the light source regions corresponding to the pixel division are in an on state, the sub-light sources outside the light source regions are in an off state.
9. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1 to 5 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 5.
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