CN114203110B - High-resolution display chip compensation method and device and storage medium - Google Patents
High-resolution display chip compensation method and device and storage medium Download PDFInfo
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- CN114203110B CN114203110B CN202111584604.1A CN202111584604A CN114203110B CN 114203110 B CN114203110 B CN 114203110B CN 202111584604 A CN202111584604 A CN 202111584604A CN 114203110 B CN114203110 B CN 114203110B
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0257—Reduction of after-image effects
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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
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
Abstract
The invention discloses a high-resolution display chip compensation method, a device and a storage medium, wherein the method comprises the following steps: the high-resolution display chip displays a first picture and a second picture; the camera respectively shoots a first picture and a second picture, generates a first image and a second image and transmits the images to the control device; the control device analyzes the pixel color distribution characteristics of the first image and the second image and records dead pixel and dead pixel position information; if the number of the dead spot position information is larger than a preset value, starting the low-resolution DMD drive chip and the low-resolution DMD display chip, wherein the low-resolution DMD drive chip controls a lens of the low-resolution DMD display chip to rotate by a first angle, so that the lens reflects a light spot of a light source to the dead spot; and the fluorescent material on the surface of the dead pixel absorbs the light spot and then emits light, and the high-resolution display chip is compensated.
Description
Technical Field
The invention relates to the field of high-resolution display, in particular to a high-resolution display chip compensation method, a high-resolution display chip compensation device and a storage medium.
Background
The yield of the high-resolution display chip is low at present, and the high-resolution display chip has the condition that dead spots need to be compensated; at present, two related display technologies exist, firstly, a plurality of low-resolution display chips are directly spliced to achieve high-resolution display, the scheme can improve the yield, but the requirement on the consistency of a plurality of chips is high, and the situation of defective points cannot be compensated; another widely used compensation method is De-Mura, which extracts the brightness signal by an optical CCD photography method after the back plate is lighted up, and compensates according to the intensity of the signal to achieve the purpose of uniform display, but the scheme has limitations mainly in use in order to eliminate the problems of afterimage and uneven light emission of the OLED.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a high-resolution display chip compensation method, a device and a storage medium, which can achieve the technical effect that the low-resolution DMD chip compensates and displays the high-resolution display chip by forming a module group through a high-resolution display chip and a low-resolution DMD chip.
In a first aspect, an embodiment of the present invention provides a high resolution display chip compensation method having the above function, which is applied to a high resolution display chip compensation device, where the high resolution display chip compensation device includes a high resolution driving chip, a high resolution display chip, a camera, a control device, a memory, a low resolution DMD driving chip, and a low resolution DMD display chip, and includes: the high-resolution driving chip drives the high-resolution display chip to display a first picture and a second picture; said camera taking said first and second pictures, respectively, producing first and second images, respectively, said camera transmitting said first and second images to said control means; the control device analyzes the pixel color distribution characteristics of the first image and the second image, records dead pixel and dead pixel position information, and writes the dead pixel position information into a memory; if the number of the dead spot position information is larger than a preset value, starting the low-resolution DMD drive chip and the low-resolution DMD display chip, writing the dead spot position information into the low-resolution DMD drive chip by the memory, and controlling a lens of the low-resolution DMD display chip to rotate by a first angle by the low-resolution DMD drive chip to enable the lens to reflect a light spot of a light source to the dead spot; the fluorescent material on the surface of the dead pixel absorbs the light spot and then emits light, the high-resolution display chip is compensated to obtain compensation data, and the processor writes the compensation data into the memory; and the camera shoots a compensated picture to generate a third image, and the processor analyzes the pixel color distribution characteristics of the third image and confirms that the dead pixel is eliminated.
The high-resolution display chip compensation method at least has the following technical effects that each time the high-resolution display chip is started for detection, the high-resolution display chip displays a first picture and a second picture, the camera shoots the first picture and the second picture to generate images and transmits the images to the processor, so that the processor judges whether dead pixels of the high-resolution display chip exceed a preset value or not, when the dead pixels exceed the preset value, the low-resolution DMD driving chip and the low-resolution DMD display chip are started for compensation, if the number of the dead pixels of the high-resolution display chip does not exceed the preset value, the high-resolution display chip normally works, the low-resolution DMD chip does not work, and the lens is in a closed state. The invention compensates the dead pixel of the high-resolution display chip through the low-resolution DMD driving chip and the low-resolution DMD display chip, thereby achieving the technical effect of compensating the dead pixel of the high-resolution display chip.
According to the high-resolution display chip compensation method provided by the embodiment of the invention, the surface of the high-resolution display chip is brushed with the fluorescent material, the fluorescent material can absorb the visible light with the first wavelength reflected by the low-resolution DMD display chip, the visible light with the first wavelength is insensitive to the visible light with the second wavelength emitted by the high-resolution display chip, and the fluorescent material releases the visible light with the first wavelength after absorbing enough visible light energy with the first wavelength, so that the visible light with the first wavelength does not influence the work of the high-resolution display chip.
According to the high-resolution display chip compensation method provided by the embodiment of the invention, the first wavelength is not equal to the second wavelength, and the two visible lights with different wavelengths cannot interfere with each other.
According to the high-resolution display chip compensation method provided by the embodiment of the invention, the first picture is a gray-scale image, the second picture is an RGB image, and the camera obtains the gray-scale image and the RGB image through shooting and transmits the gray-scale image and the RGB image to the processor so as to judge the dead pixel condition of the high-resolution display chip.
According to the high-resolution display chip compensation method of the embodiment of the invention, the camera is a CCD camera.
According to the high-resolution display chip compensation method provided by the embodiment of the invention, the memory is a ROM.
According to the high-resolution display chip compensation method provided by the embodiment of the invention, the preset value is 5.
In a second aspect, an embodiment of the present invention further provides a computer apparatus, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor executes the computer program to implement the high resolution display chip compensation method according to the first aspect of the present invention.
In a third aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the high resolution display chip compensation method according to the first aspect of the present invention.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flowchart illustrating a compensation method for a high resolution display chip according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a high resolution display chip compensation method according to an embodiment of the present invention;
FIG. 3 is a diagram of a high resolution display chip compensation system according to an embodiment of the invention.
Reference numerals are as follows:
a high resolution driving chip 201, a high resolution display chip 202, a camera 203, a processor 204, a low resolution DMD driving chip 205, a low resolution DMD display chip 206, a light source 207, an exposure plate 208, a display panel,
A high resolution unit 301, a low resolution unit 302, a light source unit 303, an image pickup unit 304, and a control unit 305.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 and 2, a high resolution display chip compensation method according to a first embodiment of the present invention is described, which is applied to a high resolution display chip compensation apparatus including a high resolution driving chip 201, a high resolution display chip 202, a camera 203, a control apparatus, a memory, a low resolution DMD driving chip 205, and a low resolution DMD display chip 206, and includes:
s101: the high-resolution driving chip 201 drives the high-resolution display chip 202 to display a first picture and a second picture;
s102: the camera 203 takes said first picture and said second picture, respectively, producing a first image and a second image, respectively, the camera 203 transmitting the first image and said second image to the processor 204;
s103: the processor 204 analyzes the pixel color distribution characteristics of the first image and the second image, records dead pixel and dead pixel position information, and writes the dead pixel position information into the memory;
s104: if the number of the dead pixel position information is larger than the preset value, starting a low-resolution DMD drive chip 205 and a low-resolution DMD display chip 206, writing the dead pixel position information into the low-resolution DMD drive chip 205 by a memory, and controlling a lens of the low-resolution DMD display chip 206 to rotate by a first angle by the low-resolution DMD drive chip 205 so that the lens reflects a light spot of a light source to a dead pixel;
s105: the fluorescent material on the surface of the dead pixel absorbs the light spot and emits light, the high-resolution display chip 202 is compensated to obtain compensation data, and the processor 204 writes the compensation data into the memory;
s106: the camera 203 captures the compensated picture to generate a third image, and the processor 204 analyzes the color distribution characteristics of the pixels of the third image to confirm that the dead pixel has been eliminated.
It should be noted that, each time the computer is turned on for detection, the high resolution display chip 201 displays a first picture and a second picture, the camera 203 captures the first picture and the second picture to generate an image, and the image is transmitted to the processor 204, so that the processor 204 judges whether the dead pixel of the high resolution display chip 202 exceeds a preset value, and when the dead pixel exceeds the preset value, the low resolution DMD driver chip 205 and the low resolution DMD display chip 206 are activated to compensate.
Referring to fig. 1 and 2, according to the high resolution display chip compensation method of the first embodiment of the present invention, a fluorescent material is brushed on the surface of the high resolution display chip 202, the fluorescent material can absorb the visible light with the first wavelength reflected from the low resolution DMD display chip 206, the visible light with the first wavelength is not sensitive to the visible light with the second wavelength emitted from the high resolution display chip, and the fluorescent material releases the visible light with the first wavelength after absorbing enough visible light energy with the first wavelength, so that the visible light with the first wavelength does not affect the operation of the high resolution display chip 202.
Referring to fig. 1 and 2, according to the compensation method for a high resolution display chip of the first embodiment of the present invention, the first wavelength is not equal to the second wavelength, and the two visible lights with different wavelengths do not interfere with each other.
Referring to fig. 1 and 2, according to the compensation method for a high resolution display chip of the first embodiment of the present invention, the first frame is a grayscale image, the second frame is an RGB image, and the camera 203 obtains the grayscale image and the RGB image by shooting and transmits the grayscale image and the RGB image to the processor, so as to determine the bad pixel condition of the high resolution display chip.
According to the high resolution display chip compensation method of the first embodiment of the present invention, the camera 203 is a CCD camera.
According to the compensation method of the high-resolution display chip of the first embodiment of the invention, the memory is a ROM.
According to the compensation method for the high resolution display chip of the first embodiment of the invention, the preset value is 5.
Referring to fig. 3, a high resolution display chip compensation system according to a second embodiment of the present invention includes:
a high resolution unit 301 including a high resolution display unit for displaying a high resolution image and a high resolution driving unit for driving the high resolution display unit;
a low resolution unit 302 including a low resolution display unit for compensating the high resolution display unit and a low resolution driving unit for driving the low resolution display unit;
a light source unit 303 for illuminating the low resolution display unit;
an image capturing unit 304 for capturing and generating an image;
and a control unit 305, respectively connected to the high resolution unit 301, the low resolution unit 302, the light source unit 303 and the image pickup unit 304, for controlling the light source unit 303 to irradiate the low resolution unit 302, so that the low resolution unit 302 reflects the light spot of the light source unit 303 to the dead spot of the high resolution unit 301.
A high resolution display chip compensation apparatus according to a third embodiment of the present invention includes at least one processor, and a memory connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the high resolution display chip compensation method of embodiment one.
A computer-readable storage medium according to a fourth embodiment of the present invention stores computer-executable instructions for causing a computer to perform the high resolution display chip compensation method according to the first embodiment.
It should be recognized that the method steps in embodiments of the present invention may be embodied or carried out in computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The method may use standard programming techniques. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, the operations of processes described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described herein (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable interface, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or write storage medium, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the storage medium or device, is operative to configure and operate the computer to perform the procedures described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described herein includes these and other different types of non-transitory computer-readable storage media when such media include instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. The invention also includes the computer itself when programmed according to the methods and techniques described herein.
A computer program can be applied to input data to perform the functions described herein to transform the input data to generate output data that is stored to non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including particular visual depictions of physical and tangible objects produced on a display.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A high-resolution display chip compensation method is applied to a high-resolution display chip compensation device, the high-resolution display chip compensation device comprises a high-resolution driving chip, a high-resolution display chip, a camera, a control device, a memory, a processor, a light source, a low-resolution DMD driving chip and a low-resolution DMD display chip, and the method comprises the following steps:
the high-resolution driving chip drives the high-resolution display chip to display a first picture and a second picture;
said camera taking said first and second pictures, respectively, producing first and second images, respectively, said camera transmitting said first and second images to said control device;
the control device analyzes the pixel color distribution characteristics of the first image and the second image, records dead pixel and dead pixel position information, and writes the dead pixel position information into a memory;
if the number of the dead pixel position information is larger than a preset value, starting the low-resolution DMD driving chip and the low-resolution DMD display chip, writing the dead pixel position information into the low-resolution DMD driving chip by the memory, and controlling a lens of the low-resolution DMD display chip to rotate by a first angle by the low-resolution DMD driving chip so that the lens reflects a light spot of the light source to the dead pixel;
the fluorescent material on the surface of the dead pixel absorbs the light spot and then emits light, the high-resolution display chip is compensated to obtain compensation data, and the processor writes the compensation data into the memory;
the camera shoots a compensated picture to generate a third image, and the processor analyzes the pixel color distribution characteristics of the third image until the dead pixel is eliminated;
the surface of the high-resolution display chip is brushed with a fluorescent material, the fluorescent material can absorb visible light with a first wavelength reflected by the low-resolution DMD display chip, the visible light with the first wavelength is not sensitive to the visible light with a second wavelength emitted by the high-resolution display chip, and the fluorescent material releases the visible light with the first wavelength after absorbing enough visible light energy with the first wavelength;
the first wavelength is not equal to the second wavelength.
2. The method as claimed in claim 1, wherein the first frame is a gray-scale image and the second frame is an RGB image.
3. The method of claim 1, wherein the camera is a CCD camera.
4. The method as claimed in claim 1, wherein the memory is a ROM.
5. The method as claimed in claim 1, wherein the predetermined value is 5.
6. The high-resolution display chip compensation device is characterized by comprising at least one processor and a memory connected with the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-5.
7. A computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1-5.
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