CN114967289A - Color wheel module, brightness correction device and method of display panel and storage medium - Google Patents
Color wheel module, brightness correction device and method of display panel and storage medium Download PDFInfo
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
- G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/006—Filter holders
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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Abstract
The application discloses a color wheel module, a brightness correction device and method of a display panel and a storage medium. The color wheel module comprises a rotary disc and a rotary shaft; the turntable is provided with a first through hole provided with a red filter, a second through hole provided with a green filter and a third through hole provided with a blue filter; the rotating shaft is used for driving the first through hole, the second through hole and the third through hole to rotate around the rotating axis of the rotating shaft, so that the first through hole is aligned with the lens position of the first camera, the second through hole is aligned with the lens position of the second camera, and the third through hole is aligned with the lens position of the third camera. This application embodiment is through setting up rotatable red light filter, green filter and blue filter on the carousel to can align red light filter, green filter and blue filter with the camera lens position of different cameras respectively, like this, the same picture of display panel corresponding red, green blue image can be gathered simultaneously to a plurality of cameras, has shortened image acquisition time, has improved the output efficiency of equipment.
Description
Technical Field
The application relates to the technical field of display, in particular to a color wheel module, a brightness correction device and method of a display panel and a storage medium.
Background
In the process of brightness correction of display panels such as OLEDs and LCDs, large-area black and white cameras are generally used to sequentially collect images of images such as R (red), G (green), B (blue) and the like to obtain pixel brightness data of the display panels, and then compensation data is generated by a demura algorithm and is burned into a flash memory of a display panel driving chip to realize demura of the display panels. However, the demura procedure usually requires many images to be acquired, and the image acquisition takes too long, which results in low throughput efficiency of the device.
Disclosure of Invention
The embodiment of the application provides a color wheel module, a brightness correction device and method of a display panel and a storage medium, and aims to shorten the image acquisition time and improve the output efficiency of equipment.
In one aspect, the present application provides a color wheel module, the color wheel module includes:
the turntable is provided with a first through hole provided with a red filter, a second through hole provided with a green filter and a third through hole provided with a blue filter;
and the rotating shaft is connected with the rotating disc and used for driving the first through hole, the second through hole and the third through hole to rotate around the rotating axis of the rotating shaft so as to align the first through hole with the lens position of the first camera, align the second through hole with the lens position of the second camera and align the third through hole with the lens position of the third camera.
In some embodiments, the turntable is further provided with a fourth through hole without installing the optical filter;
and the rotating shaft is also used for driving the fourth through hole to rotate around the rotating axis of the rotating shaft, so that the fourth through hole is sequentially aligned with the lens position of the first camera, the lens position of the second camera and the lens position of the third camera respectively.
In another aspect, an embodiment of the present application provides a brightness correction device for a display panel, including:
the color wheel module is described above;
the camera module comprises a first camera, a second camera and a third camera, when the lens of the first camera is aligned with the first through hole, the lens of the second camera is aligned with the second through hole, and the lens of the third camera is aligned with the third through hole;
and the controller is in communication connection with the first camera, the second camera and the third camera and is used for outputting image display signals to the target display panel, acquiring image data acquired by the first camera, the second camera and the third camera when the lens of the first camera is aligned with the first through hole, the lens of the second camera is aligned with the second through hole and the lens of the third camera is aligned with the third through hole, and performing brightness correction processing on the target display panel according to the image data, wherein the image data comprises a display image of the target display panel.
In some embodiments, the turntable is provided with a fourth through hole without an optical filter, and the controller is further configured to obtain image data acquired by the first camera when a lens of the first camera is aligned with the fourth through hole, image data acquired by the second camera when a lens of the second camera is aligned with the fourth through hole, and image data acquired by the third camera when a lens of the third camera is aligned with the fourth through hole, respectively, so as to calibrate the first camera, the second camera, and the third camera.
On the other hand, an embodiment of the present application provides a method for correcting luminance of a display panel, which is applied to the apparatus for correcting luminance of a display panel as described above, and includes:
controlling the first through hole to be aligned with the lens position of the first camera, the second through hole to be aligned with the lens position of the second camera, and the third through hole to be aligned with the lens position of the third camera;
outputting a picture display signal to a target display panel to enable the target display panel to display a picture according to a preset gray scale;
acquiring image data acquired by a first camera, a second camera and a third camera at the same time;
and performing brightness correction processing on the target display panel according to the image data and the preset gray scale.
In some embodiments, before the step of controlling the first via to align with the lens position of the first camera, the second via to align with the lens position of the second camera, and the third via to align with the lens position of the third camera, the method further includes:
controlling the fourth through hole to be aligned with the lens position of the first camera so as to acquire a first calibration image acquired by the first camera;
controlling the fourth through hole to be aligned with the lens position of the second camera so as to acquire a second calibration image acquired by the second camera;
controlling the fourth through hole to be aligned with the lens position of the first camera so as to obtain a third calibration image collected by the third camera;
and determining image brightness deviation data among the first camera, the second camera and the third camera according to the first calibration image, the second calibration image and the third calibration image so as to calibrate the first camera, the second camera and the third camera, wherein the first calibration image, the second calibration image and the third calibration image all comprise display pictures of a preset display panel.
In some embodiments, the step of performing the brightness correction process on the target display panel according to the image data and the preset gray scale includes:
correcting the image data according to the image brightness deviation data among the first camera, the second camera and the third camera;
and performing brightness correction processing on the target display panel according to the corrected image data and the preset gray scale.
In some embodiments, the step of determining image brightness deviation data between the first camera, the second camera and the third camera according to the first calibration image, the second calibration image and the third calibration image comprises:
determining a first image area where a display picture of a preset display panel in the first calibration image is located, determining a second image area where the display picture of the preset display panel in the second calibration image is located, and determining a third image area where the display picture of the preset display panel in the third calibration image is located;
respectively determining the brightness values of the same pixel point of a display picture of a preset display panel in a first image area, a second image area and a third image area;
and determining image brightness deviation data among the first camera, the second camera and the third camera according to the difference value of the brightness values of the same pixel point of a display picture of a preset display panel.
In some embodiments, the method for correcting brightness of a display panel further includes:
when the first camera is detected to be in fault, controlling the first through hole to be aligned with the lens position of the second camera or the third camera;
and taking the image data collected by the second camera when the first through hole is aligned with the lens position of the second camera or the image data collected by the third camera when the first through hole is aligned with the lens position of the third camera as the image data collected by the first camera.
In another aspect, an embodiment of the present application provides a computer storage medium, on which a computer program is stored, where the computer program is loaded by a processor to execute the steps in the brightness correction method for a display panel described in any one of the above.
The color wheel module, the brightness correction device and method of the display panel and the storage medium provided by the embodiment of the application comprise a rotary disc and a rotary shaft; the turntable is provided with a first through hole provided with a red filter, a second through hole provided with a green filter and a third through hole provided with a blue filter; the rotating shaft is used for driving the first through hole, the second through hole and the third through hole to rotate around the rotating axis of the rotating shaft, so that the first through hole is aligned with the lens position of the first camera, the second through hole is aligned with the lens position of the second camera, and the third through hole is aligned with the lens position of the third camera. This application embodiment is through setting up rotatable red light filter, green filter and blue filter on the carousel to can align red light filter, green filter and blue filter with the camera lens position of different cameras respectively, like this, the same picture of display panel corresponding red, green blue image can be gathered simultaneously to a plurality of cameras, has shortened image acquisition time, has improved the output efficiency of equipment.
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 description of the embodiments are briefly introduced 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 creative efforts.
Fig. 1 is a schematic structural diagram of a color wheel module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a luminance correcting apparatus of a display panel according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating an embodiment of a brightness correction method for a display panel according to an embodiment of the present disclosure;
fig. 4 is a schematic terminal structure diagram of an embodiment of a computer device provided in an embodiment of the present application.
Description of reference numerals:
110. a color wheel module; 111. a first through hole; 112. a second through hole; 113. a third through hole; 114. a fourth via hole; 100. a brightness correction device of the display panel; 120. a camera module; 130. a controller; 200. and a target display panel.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
It should be noted that, since the method in the embodiment of the present application is executed in a computer device, processing objects of each computer device all exist in the form of data or information, for example, time, which is substantially time information, and it is understood that, in the subsequent embodiments, if size, number, position, and the like are mentioned, corresponding data exist so as to be processed by the computer device, and details are not described herein.
The embodiments of the present application provide a color wheel module, a brightness correction device of a display panel, a method and a storage medium, which are described in detail below.
Referring to fig. 1, in an embodiment, the color wheel module 110 includes a rotation disc and a rotation shaft, the rotation shaft is connected to the rotation disc, a rotation axis of the rotation shaft passes through a center of the rotation disc, and the rotation disc is driven by the rotation shaft to rotate around the rotation axis of the rotation shaft. The turntable is at least provided with a first through hole 111, a second through hole 112 and a third through hole 113. The first through hole 111 is provided with a red filter, the second through hole 112 is provided with a green filter, and the third through hole 113 is provided with a blue filter. It can be understood that, in fig. 1, the positions of the first through hole 111, the second through hole 112, and the third through hole 113 may be changed according to actual requirements, and the positions of the red filter, the green filter, and the blue filter may also be changed according to actual requirements, which is not limited herein.
In the process of driving the rotating shaft to rotate around the rotating axis of the rotating shaft, the first through hole 111, the second through hole 112, and the third through hole 113 also rotate around the rotating axis of the rotating shaft, so that the first through hole 111 can be aligned with the lens position of the first camera, the second through hole 112 can be aligned with the lens position of the second camera, and the third through hole 113 can be aligned with the lens position of the third camera. It will be appreciated that the optical filter in the through-hole may cover the corresponding lens when the through-hole is aligned with the lens, so that the image captured by the corresponding camera is the filtered image. In the process of correcting the brightness of the display panel, the three cameras can simultaneously and respectively collect and filter images after red, green and blue light, and images of pictures such as red, green and blue light do not need to be collected in sequence, so that the image collection time is shortened, and the output efficiency of equipment is improved.
Referring to fig. 1, in some embodiments, the turntable is further provided with a fourth through hole 114 to which no filter is mounted. The shaft may also drive the fourth aperture 114 to rotate about the shaft's axis of rotation such that the fourth aperture 114 is sequentially aligned with the first camera's lens position, the second camera's lens position, and the third camera's lens position, respectively. Through the fourth through hole 114 without the optical filter, the three cameras can acquire images of the same target under the same condition, so that the error of equipment hardware when the cameras acquire the images is calculated, calibration of the three cameras is achieved, and brightness correction of the display panel can be more accurate.
Referring to fig. 2, in an embodiment, the brightness correction apparatus 100 of the display panel includes the color wheel module 110, the camera module 120, and the controller 130 as described above. The camera module 120 includes a first camera, a second camera, and a third camera, and the relative positions of the first camera, the second camera, and the third camera are fixed. By setting the relative positions of the first camera, the second camera and the third camera, when the lens of the first camera is aligned with the first through hole 111, the lens of the second camera is aligned with the second through hole 112, and the lens of the third camera is aligned with the third through hole 113. In some embodiments, the first camera, the second camera and the third camera are black and white cameras to achieve brightness detection of a display screen of the display panel.
The controller 130 is communicatively connected with the first camera, the second camera, and the third camera, and is for communicative connection with the target display panel 200. The target display panel 200 is a display panel requiring brightness correction, and when the controller 130 is in communication connection with the target display panel 200, the controller 130 may output a screen display signal to the target display panel 200 to display a screen on the target display panel 200. The lenses of the first camera, the second camera and the third camera face the display area of the target display panel 200, so that when the lens of the first camera is aligned with the first through hole 111, the lens of the second camera is aligned with the second through hole 112 and the lens of the third camera is aligned with the third through hole 113, the image data collected by the first camera, the second camera and the third camera can be acquired, and the brightness correction processing can be performed on the target display panel 200 according to the image data collected by the first camera, the second camera and the third camera. The image data collected by the first camera, the second camera, and the third camera include the display image of the target display panel 200, the red filter is located between the lens of the first camera and the display area of the target display panel 200, the green filter is located between the lens of the second camera and the display area of the target display panel 200, and the blue filter is located between the lens of the third camera and the display area of the target display panel 200. In some embodiments, to ensure that the conditions under which the first camera, the second camera, and the third camera acquire image data are as similar as possible, the first camera, the second camera, and the third camera are positioned close to each other with the lenses oriented parallel to each other.
In some embodiments, the turntable is provided with a fourth through hole 114 without a filter, and the controller 130 is further configured to obtain image data collected by the first camera when the lens of the first camera is aligned with the fourth through hole 114, image data collected by the second camera when the lens of the second camera is aligned with the fourth through hole 114, and image data collected by the third camera when the lens of the third camera is aligned with the fourth through hole 114, respectively, so as to calibrate the first camera, the second camera, and the third camera. Specifically, the fourth through hole 114 may be respectively rotated to three cameras, the three cameras are used to shoot the same target, three pictures are collected, one of the three cameras is used as a reference, the data deviation of the other two cameras is calculated, and the calibration of the three cameras can be realized according to the data deviation.
Referring to fig. 3, in an embodiment, a method for correcting brightness of a display panel is applied to the brightness correction apparatus 100 for a display panel, which includes:
301. controlling the first through hole 111 to be aligned with the lens position of the first camera, the second through hole 112 to be aligned with the lens position of the second camera, and the third through hole 113 to be aligned with the lens position of the third camera;
in this embodiment, the controller 130 is connected to the rotating shaft for controlling the rotation of the rotating shaft, and the first through hole 111 can be aligned with the lens position of the first camera, the second through hole 112 can be aligned with the lens position of the second camera, and the third through hole 113 can be aligned with the lens position of the third camera.
In some embodiments, three cameras may be calibrated prior to step 301. Specifically, the controller 130 may first control the fourth through hole 114 to align with a lens position of the first camera to obtain a first calibration image collected by the first camera, then control the fourth through hole 114 to align with a lens position of the second camera to obtain a second calibration image collected by the second camera, and then control the fourth through hole 114 to align with a lens position of the first camera to obtain a third calibration image collected by the third camera. It should be noted that the first calibration image, the second calibration image, and the third calibration image all include the same target, for example, the same display frame of the same preset display panel. In some embodiments, to ensure that the conditions under which the first camera, the second camera, and the third camera acquire image data are as similar as possible, the first camera, the second camera, and the third camera are positioned close to each other with the lenses oriented parallel to each other. And determining image brightness deviation data among the first camera, the second camera and the third camera according to the first calibration image, the second calibration image and the third calibration image so as to calibrate the first camera, the second camera and the third camera. Specifically, a first image area where a display picture of a preset display panel in the first calibration image is located, a second image area where the display picture of the preset display panel in the second calibration image is located, and a third image area where the display picture of the preset display panel in the third calibration image is located may be determined, and in the first image area, the second image area, and the third image area, luminance values of the same pixel point of the display picture of the preset display panel are respectively determined, so that a difference value of the luminance values of the same pixel point of the display picture of the preset display panel is determined. Because the contents in the first calibration image, the second calibration image and the third calibration image are not completely consistent, the calibration among the three cameras can be more accurate by segmenting similar image areas. The image brightness deviation data among the first camera, the second camera and the third camera comprises brightness value difference values corresponding to all pixel points of a display picture of a preset display panel. It should be noted that, when the brightness difference of the same pixel point in different calibration images is calculated, the calibration image of one of the cameras can be used as a reference for calculation.
302. Outputting a picture display signal to the target display panel 200 to display a picture on the target display panel 200 according to a preset gray scale;
303. acquiring image data acquired by a first camera, a second camera and a third camera at the same time;
in this embodiment, the controller 130 outputs a frame display signal to the target display panel 200 to light the target display panel 200, and the target display panel 200 displays a frame according to a preset gray scale. After the target display panel 200 displays the image according to the preset gray scale, the image data acquired by the first camera, the second camera and the third camera at the same time can be acquired. The image data collected by the first camera is the image data filtered by the red light filter, the image data collected by the second camera is the image data filtered by the green light filter, and the image data collected by the third camera is the image data filtered by the blue light filter. It is understood that the image data collected by the first camera is luminance data corresponding to R (red) sub-pixels, the image data collected by the second camera is luminance data corresponding to G (green) sub-pixels, and the image data collected by the third camera is luminance data corresponding to B (blue) sub-pixels.
In some embodiments, there are multiple predetermined gray levels. After the image data acquired by the first camera, the second camera and the third camera at the same time is acquired, the target display panel 200 can be controlled to display a picture according to the next preset gray scale, and the image data acquired by the first camera, the second camera and the third camera at the same time is acquired until all the image data corresponding to the preset gray scale are acquired by the first camera, the second camera and the third camera. The target display panel 200 is controlled to sequentially display the image according to a plurality of preset gray scales from low to high.
In some embodiments, a partial camera failure condition may occur. Taking the first camera as an example, if it is detected that the first camera fails, the first through hole 111 may be rotated to a position corresponding to the lens of another camera to obtain corresponding image data, and the corresponding image data is used as the image data corresponding to the first camera. For example, when the first camera fails, the first through hole 111 may be controlled to align with the lens position of the second camera or the third camera, and the image data collected by the second camera when the first through hole 111 aligns with the lens position of the second camera, or the image data collected by the third camera when the first through hole 111 aligns with the lens position of the third camera, is used as the image data collected by the first camera at the same time, so as to ensure smooth execution of the brightness correction process of the display panel.
304. The brightness correction process is performed on the target display panel 200 according to the image data and the preset gray scale.
In this embodiment, after the image data corresponding to all the collected preset gray scales are processed, the image data corresponding to each preset gray scale may be processed by an image algorithm to obtain the pixel brightness data of the target display panel 200. The pixel luminance data includes R, G, B actual luminance values of sub-pixels in each pixel of the display panel at each predetermined gray level. According to the actual brightness value and the theoretical brightness value of R, G, B sub-pixels in each pixel of the target display panel 200, it can be determined whether there is a brightness deviation, and according to the brightness deviation value, a brightness compensation value can be determined, and burned into the flash memory of the display panel driving chip, so as to implement the brightness correction processing for the target display panel 200.
In some embodiments, in the step of performing the brightness correction processing on the target display panel 200 according to the image data and the preset gray scale, since hardware deviations exist in different cameras when acquiring images, the image data may be corrected according to image brightness deviation data among the first camera, the second camera, and the third camera, and then the pixel brightness data of the target display panel 200 is calculated according to the corrected image data and the preset gray scale, so that the brightness correction of the display panel is more accurate. Specifically, when the image data is corrected according to the image brightness deviation data, the brightness of the pixel point at the same position in the image data can be determined according to the brightness deviation value of the pixel point at the same position. Also, in correcting the image data, the image data collected by the second camera may be corrected to eliminate a deviation between the image data corresponding to the second camera and the image data corresponding to the first camera based on the image brightness deviation data between the second camera and the first camera, and similarly, the image data collected by the second camera of the third camera may be corrected to eliminate a deviation between the image data corresponding to the second camera and the image data corresponding to the first camera based on the image brightness deviation data between the third camera and the first camera.
In the technical scheme disclosed in this embodiment, through the colour wheel that is provided with red light filter, green filter and blue filter, can adopt three cameras to gather the display screen under the same grey scale simultaneously, shortened image acquisition time, can shorten the time of gathering the image to 1/3 of original collection mode, the efficiency of luminance correction is higher, has improved the output efficiency of equipment.
The embodiment of the application also provides computer equipment, which integrates the brightness correction device of any display panel provided by the embodiment of the application. Fig. 4 is a schematic diagram showing a structure of a computer device according to an embodiment of the present application, specifically:
the computer device may include components such as a processor 401 of one or more processing cores, memory 402 of one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will appreciate that the computer device configuration shown in FIG. 4 is not intended to constitute a limitation of computer devices and may include more or fewer components than those shown, or some of the components may be combined, or a different arrangement of components. Wherein:
the processor 401 is a control center of the computer device, connects various parts of the entire computer device using various interfaces and lines, and performs various functions of the computer device and processes data by running or executing software programs and/or modules stored in the memory 402 and calling data stored in the memory 402, thereby monitoring the computer device as a whole. Alternatively, processor 401 may include one or more processing cores; preferably, the processor 401 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 401.
The memory 402 may be used to store software programs and modules, and the processor 401 executes various functional applications and data processing by operating the software programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to use of the computer device, and the like. Further, the memory 402 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 access to the memory 402.
The computer device further comprises a power supply 403 for supplying power to the various components, and preferably, the power supply 403 is logically connected to the processor 401 via a power management system, so that functions of managing charging, discharging, and power consumption are implemented via the power management system. The power supply 403 may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
The computer device may also include an input unit 404, the input unit 404 being operable to receive input numeric or character information and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.
Although not shown, the computer device may further include a display unit and the like, which are not described in detail herein. Specifically, in this embodiment, the processor 401 in the computer device loads the executable file corresponding to the process of one or more application programs into the memory 402 according to the following instructions, and the processor 401 runs the application programs stored in the memory 402, thereby implementing various functions as follows:
controlling the first through hole to be aligned with the lens position of the first camera, the second through hole to be aligned with the lens position of the second camera, and the third through hole to be aligned with the lens position of the third camera;
outputting a picture display signal to a target display panel to enable the target display panel to display a picture according to a preset gray scale;
acquiring image data acquired by a first camera, a second camera and a third camera at the same time;
and performing brightness correction processing on the target display panel according to the image data and the preset gray scale.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, an embodiment of the present application provides a computer-readable storage medium, which may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like. The computer program is loaded by a processor to execute the steps in any one of the brightness correction methods for a display panel provided by the embodiments of the present application. For example, the computer program may be loaded by a processor to perform the steps of:
controlling the first through hole to be aligned with the lens position of the first camera, the second through hole to be aligned with the lens position of the second camera, and the third through hole to be aligned with the lens position of the third camera;
outputting a picture display signal to a target display panel to enable the target display panel to display a picture according to a preset gray scale;
acquiring image data acquired by a first camera, a second camera and a third camera at the same time;
and performing brightness correction processing on the target display panel according to the image data and the preset gray scale.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.
In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing method embodiment, which is not described herein again.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
The color wheel module, the brightness correction device of the display panel, the method and the storage medium provided by the embodiment of the present application are introduced in detail, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The utility model provides a color wheel module which characterized in that, color wheel module includes:
the turntable is provided with a first through hole provided with a red filter, a second through hole provided with a green filter and a third through hole provided with a blue filter;
and the rotating shaft is connected with the rotating disc and used for driving the first through hole, the second through hole and the third through hole to rotate around the rotating axis of the rotating shaft, so that the first through hole is aligned with the lens position of the first camera, the second through hole is aligned with the lens position of the second camera, and the third through hole is aligned with the lens position of the third camera.
2. The color wheel module as claimed in claim 1, wherein the turntable is further provided with a fourth through hole not provided with a filter;
the rotating shaft is further used for driving the fourth through hole to rotate around the rotating axis of the rotating shaft, so that the fourth through hole is sequentially aligned with the lens position of the first camera, the lens position of the second camera and the lens position of the third camera respectively.
3. A brightness correction apparatus for a display panel, comprising:
the color wheel module as claimed in claim 1;
the camera module comprises a first camera, a second camera and a third camera, when the lens of the first camera is aligned with the first through hole, the lens of the second camera is aligned with the second through hole, and the lens of the third camera is aligned with the third through hole;
and the controller is in communication connection with the first camera, the second camera and the third camera and is used for outputting image display signals to the target display panel, acquiring image data acquired by the first camera, the second camera and the third camera when the lens of the first camera is aligned with the first through hole, the lens of the second camera is aligned with the second through hole and the lens of the third camera is aligned with the third through hole, and performing brightness correction processing on the target display panel according to the image data, wherein the image data comprises a display image of the target display panel.
4. The apparatus for correcting brightness of a display panel according to claim 3, wherein the turntable is provided with a fourth through hole without a filter, and the controller is further configured to obtain image data captured by the first camera when the lens of the first camera is aligned with the fourth through hole, image data captured by the second camera when the lens of the second camera is aligned with the fourth through hole, and image data captured by the third camera when the lens of the third camera is aligned with the fourth through hole, respectively, so as to calibrate the first camera, the second camera, and the third camera.
5. A method for correcting luminance of a display panel, which is applied to the apparatus for correcting luminance of a display panel according to claim 3, comprising:
controlling the first through hole to be aligned with the lens position of the first camera, the second through hole to be aligned with the lens position of the second camera, and the third through hole to be aligned with the lens position of the third camera;
outputting a picture display signal to a target display panel to enable the target display panel to display a picture according to a preset gray scale;
acquiring image data acquired by a first camera, a second camera and a third camera at the same time;
and performing brightness correction processing on the target display panel according to the image data and the preset gray scale.
6. The method for correcting brightness of a display panel according to claim 5, wherein the step of controlling the first via to align with a lens position of the first camera, the second via to align with a lens position of the second camera, and the third via to align with a lens position of the third camera is preceded by the step of:
controlling the fourth through hole to be aligned with the lens position of the first camera so as to acquire a first calibration image acquired by the first camera;
controlling the fourth through hole to be aligned with the lens position of the second camera so as to acquire a second calibration image acquired by the second camera;
controlling the fourth through hole to be aligned with the lens position of the first camera so as to obtain a third calibration image collected by the third camera;
and determining image brightness deviation data among the first camera, the second camera and the third camera according to the first calibration image, the second calibration image and the third calibration image so as to calibrate the first camera, the second camera and the third camera, wherein the first calibration image, the second calibration image and the third calibration image all comprise display pictures of a preset display panel.
7. The method for luminance correction of a display panel according to claim 6, wherein the step of performing the luminance correction process on the target display panel according to the image data and the preset gray scale comprises:
correcting the image data according to the image brightness deviation data among the first camera, the second camera and the third camera;
and performing brightness correction processing on the target display panel according to the corrected image data and the preset gray scale.
8. The method for correcting brightness of a display panel according to claim 6, wherein the step of determining the brightness deviation data of the images among the first camera, the second camera and the third camera according to the first calibration image, the second calibration image and the third calibration image comprises:
determining a first image area where a display picture of a preset display panel in the first calibration image is located, determining a second image area where the display picture of the preset display panel in the second calibration image is located, and determining a third image area where the display picture of the preset display panel in the third calibration image is located;
respectively determining the brightness values of the same pixel point of a display picture of a preset display panel in a first image area, a second image area and a third image area;
and determining image brightness deviation data among the first camera, the second camera and the third camera according to the difference value of the brightness values of the same pixel point of a display picture of a preset display panel.
9. The method for correcting luminance of a display panel according to claim 5, wherein the method for correcting luminance of a display panel further comprises:
when the first camera is detected to be in fault, controlling the first through hole to be aligned with the lens position of the second camera or the third camera;
and taking the image data collected by the second camera when the first through hole is aligned with the lens position of the second camera or the image data collected by the third camera when the first through hole is aligned with the lens position of the third camera as the image data collected by the first camera.
10. A computer storage medium having a computer program stored thereon, the computer program being loaded by a processor to perform the steps in the method for luminance correction of a display panel according to any one of claims 5 to 9.
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