CN114724506A - Electronic equipment, display method, display device and storage medium - Google Patents

Electronic equipment, display method, display device and storage medium Download PDF

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Publication number
CN114724506A
CN114724506A CN202110001571.7A CN202110001571A CN114724506A CN 114724506 A CN114724506 A CN 114724506A CN 202110001571 A CN202110001571 A CN 202110001571A CN 114724506 A CN114724506 A CN 114724506A
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China
Prior art keywords
compensation parameter
parameter value
display screen
chip
pixel
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CN202110001571.7A
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Chinese (zh)
Inventor
刘伟光
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to CN202110001571.7A priority Critical patent/CN114724506A/en
Publication of CN114724506A publication Critical patent/CN114724506A/en
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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]
    • 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

Abstract

The invention discloses electronic equipment, a display method, a display device and a storage medium. The electronic device includes: the system chip is used for requesting a compensation parameter value of the display screen from the server based on the identification information of the display screen and loading the received compensation parameter value to the system chip; and the driving chip of the display screen is used for acquiring the compensation parameter value loaded on the system chip through the electric connection with the system chip and adjusting the driving signal of the corresponding pixel based on the compensation parameter value.

Description

Electronic equipment, display method, device and storage medium
Technical Field
The present invention relates to the field of terminal device technologies, and in particular, to an electronic device, a display method, an apparatus, and a storage medium.
Background
At present, in the field of smart phones, Organic Light-Emitting Diode (OLED) Display screens are already used in a large scale, and compared with Liquid Crystal Display (LCD) screens used before, the OLED Display screens have the advantages of good color representation, thinness, flexibility and the like, and are the development direction of mobile phone Display screens in the future.
The OLED display screen has the following problems: because each pixel of the OLED display screen is equivalent to an organic light emitting diode and is essentially a current driving element, the current of each pixel cannot be very consistent due to line loss and process limitation, and because the current of each pixel is inconsistent, the display brightness of some pixels is higher, the brightness of some pixels is lower, and macroscopically, the brightness of the display screen is not uniform, that is, the brightness is not uniform (mura). The mura phenomenon is more serious when the display gray scale is lower, that is, the current is smaller. I need to optically compensate each pixel to correct for this phenomenon, De-mura.
Disclosure of Invention
The invention provides an electronic device, a display method, a display device and a storage medium.
According to a first aspect of embodiments of the present invention, there is provided an electronic apparatus, including: a display screen and a system-on-chip, wherein,
the system chip is used for requesting a compensation parameter value of the display screen from a server based on the identification information of the display screen and loading the received compensation parameter value to the system chip;
and the driving chip of the display screen is used for acquiring the compensation parameter value loaded on the system chip through the electric connection with the system chip and adjusting the driving signal of the corresponding pixel based on the compensation parameter value.
In one embodiment, the system-on-chip is further configured to: acquiring a verification compensation parameter value of the display screen, wherein the verification compensation parameter value is determined when the display screen is assembled on the electronic equipment and the drive signal of the corresponding pixel is not adjusted by adopting the compensation parameter; determining whether the compensation parameter value is valid based on a difference value between the compensation parameter value and a check compensation parameter value;
the system chip is specifically configured to: loading the received compensation parameter value onto the system chip in response to the compensation parameter value being valid.
3. The electronic device of claim 2, wherein the system-on-chip is specifically configured to:
determining that the compensation parameter value is valid in response to a difference value between the compensation parameter value and the verified compensation parameter value being less than or equal to a difference threshold value;
determining that the compensation parameter value is invalid in response to a difference value between the compensation parameter value and the verified compensation parameter value being greater than a difference threshold.
In one embodiment, a first group of pins of the driver chip are connected with a second group of pins of the system chip through first electrical connections, and a third group of pins of the driver chip are connected with a fourth group of pins of the system chip through second electrical connections, wherein the first group of pins is different from the third group of pins; the second set of pins is different from the fourth set of pins; the first electrical connection is used for transmitting image data sent by the system chip to the driving chip;
the driving chip is specifically configured to obtain the compensation parameter value loaded onto the system chip through the second electrical connection, and adjust the driving signal of the corresponding pixel based on the compensation parameter value.
In one embodiment, the system chip is further configured to obtain the identification information from the driver chip through the first electrical connection.
In one embodiment, the first electrical connection is configured to carry a Mobile Industry Processor Interface (MIPI) data bus;
the second electrical connection is used for bearing a Serial Peripheral Interface (SPI) data bus.
In one embodiment, the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
In one embodiment, the System-On-Chip includes a System-On-Chip (SOC).
According to a second aspect of the embodiments of the present invention, there is provided a display method applied to an electronic device including a display screen, the method including:
acquiring identification information of a display screen contained in the electronic equipment;
requesting a compensation parameter value of the display screen from a server based on the identification information;
receiving the compensation parameter value;
writing the compensation parameter value into a driving chip of the display screen; the compensation parameter is used for the driving chip to adjust the driving signal of the corresponding pixel.
In one embodiment, the writing the compensation parameter value into a driving chip of the display screen includes:
loading the received compensation parameter value onto a system chip of an electronic device;
and writing the compensation parameter value loaded on the system chip into the drive chip.
In one embodiment, the system-on-chip includes an SOC.
In one embodiment, the method further comprises:
acquiring a calibration compensation parameter value of the display screen, wherein the calibration compensation parameter value is determined after the display screen is assembled to the electronic equipment and when a driving signal of a corresponding pixel is not adjusted by adopting the compensation parameter;
determining whether the compensation parameter value is valid based on a difference value between the compensation parameter value and a check compensation parameter value;
the writing the compensation parameter value into a driving chip of the display screen includes: and responding to the validity of the compensation parameter value, and writing the compensation parameter value into a driving chip of the display screen.
In one embodiment, the determining whether the compensation parameter value is valid based on a difference value between the compensation parameter value and a verification compensation parameter value includes:
determining that the compensation parameter value is valid in response to a difference value of the compensation parameter value and the verification compensation parameter value being less than or equal to a difference threshold value;
determining that the compensation parameter value is invalid in response to a difference value between the compensation parameter value and the verified compensation parameter value being greater than a difference threshold.
In one embodiment, the compensation parameter value is used to repair mura of the display screen on a pixel-by-pixel basis.
According to a third aspect of the embodiments of the present invention, there is provided a display compensation parameter processing method applied to a production apparatus, the method including:
determining a compensation parameter value of a pixel to be compensated in a display screen;
reporting the compensation parameter value and the identification information of the display screen to a server; the compensation parameter value is used for being issued by the server to the electronic device comprising the display screen so as to adjust the driving signal of the corresponding pixel on the display screen.
In one embodiment, the determining a compensation parameter value of a pixel to be compensated in a display screen includes:
displaying a preset gray-scale image on the display screen;
collecting an image displayed by the display screen by using a Charge Coupled Device (CCD) camera;
and determining the pixel to be compensated and the compensation parameter value of the pixel to be compensated based on the difference between the preset gray-scale image and the acquired image displayed by the display screen.
In one embodiment, the compensation parameter value is used to repair mura of the display screen on a pixel-by-pixel basis.
According to a fourth aspect of the embodiments of the present invention, there is provided a display device applied to an electronic apparatus including a display screen, the device including: a first obtaining module, a requesting module, a receiving module, and a writing module, wherein,
the first acquisition module is configured to acquire identification information of a display screen included in the electronic device;
the request module is configured to request a compensation parameter value of the display screen from a server based on the identification information;
the receiving module is configured to receive the compensation parameter value;
the writing module is configured to write the compensation parameter value into a driving chip of the display screen; the compensation parameter is used for the driving chip to adjust the driving signal of the corresponding pixel.
In one embodiment, the write module includes:
a loading sub-module configured to load the received compensation parameter value onto a system chip of an electronic device;
a first writing submodule configured to write the compensation parameter value loaded on the system chip into the driver chip.
In one embodiment, the system-on-chip includes an SOC.
In one embodiment, the apparatus further comprises:
a second obtaining module, configured to obtain a calibration compensation parameter value of the display screen, where the calibration compensation parameter value is determined after the display screen is assembled to the electronic device and when a driving signal of a corresponding pixel is not adjusted by using the compensation parameter;
a first determination module configured to determine whether the compensation parameter value is valid based on a difference value between the compensation parameter value and a check compensation parameter value;
the write module includes:
and the second writing sub-module is configured to respond to the fact that the compensation parameter value is valid, and write the compensation parameter value into a driving chip of the display screen.
In one embodiment, the first determining module includes:
a first determination sub-module configured to determine that the compensation parameter value is valid in response to a difference value between the compensation parameter value and the verified compensation parameter value being less than or equal to a difference threshold value;
a second determination sub-module configured to determine that the compensation parameter value is invalid in response to a difference value between the compensation parameter value and the verified compensation parameter value being greater than a difference threshold.
In one embodiment, the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
According to a fifth aspect of the embodiments of the present invention, there is provided a display compensation parameter processing apparatus applied to a production facility, the apparatus including: a second determining module and a reporting module, wherein,
the second determining module is configured to determine a compensation parameter value of a pixel to be compensated in the display screen;
the reporting module is configured to report the compensation parameter value and the identification information of the display screen to a server; the compensation parameter value is used for being issued by the server to the electronic device comprising the display screen so as to adjust the driving signal of the corresponding pixel on the display screen.
In one embodiment, the second determining module includes:
the display sub-module is configured to display a preset gray-scale image on the display screen;
the acquisition self-module is configured to acquire the image displayed by the display screen by adopting a CCD camera;
a third determining sub-module configured to determine the pixel to be compensated and the compensation parameter value of the pixel to be compensated based on a difference between the predetermined grayscale image and the acquired image displayed on the display screen.
In one embodiment, the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
According to a sixth aspect of the embodiments of the present invention, there is provided an electronic apparatus, including: a processor, a transceiver, a memory and an executable program stored on the memory and capable of being executed by the processor, the processor executing the executable program to perform the steps of the display method according to the second aspect or the steps of the compensation parameter processing method according to the third aspect.
According to a seventh aspect of embodiments of the present invention, there is provided a storage medium on which an executable program is stored, the executable program, when executed by a processor, implementing the steps of the display method according to the second aspect or the steps of the compensation parameter processing method according to the third aspect.
An embodiment of the present invention provides an electronic device, a display method, an apparatus, and a storage medium, where the electronic device includes: the system chip is used for requesting a compensation parameter value of the display screen from a server based on the identification information of the display screen and loading the received compensation parameter value to the system chip; and the driving chip of the display screen is used for acquiring the compensation parameter value loaded on the system chip through the electric connection with the system chip and adjusting the driving signal of the corresponding pixel based on the compensation parameter value. Therefore, on one hand, an additional flash memory and the like for storing the compensation parameter values are not needed in the display screen, the cost is reduced, and the board layout area of the display screen circuit board is saved. On the other hand, in the display screen assembling process, burning equipment is not needed to burn an additional memory, so that the production steps are reduced, the production efficiency is improved, and the production cost is saved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram illustrating the structure of an electronic device in accordance with an exemplary embodiment;
FIG. 2 is a flow diagram illustrating a display method in accordance with an exemplary embodiment;
FIG. 3 is a flowchart illustrating a method of displaying compensation parameters processing according to an exemplary embodiment;
FIG. 4 is a schematic diagram illustrating the components of a display device according to an exemplary embodiment;
FIG. 5 is a schematic diagram illustrating a component structure of a display compensation parameter processing apparatus according to an exemplary embodiment;
FIG. 6 is a block diagram illustrating an apparatus for displaying or displaying compensation parameter processing in accordance with an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of embodiments of the invention, as detailed in the following claims.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used to describe various information in embodiments of the present invention, the information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of embodiments of the present invention. The word "if," as used herein, may be interpreted as "at … …" or "when … …" or "in response to a determination," depending on the context.
The execution subject related to the embodiment of the invention includes but is not limited to: the system comprises terminals such as mobile phones, computers and tablet computers with OLED display screens, and production equipment for producing and testing the OLED display screens.
An application scenario of the embodiment of the disclosure is that, in the related art, a De-mura process flow is as follows: firstly, the OLED display screen is set to display several specific pictures, such as 16 gray scales, 32 gray scales, 192 gray scales, and the like, and then a Charge Coupled Device (CCD) camera is used to capture each picture. The resolution ratio of the CCD camera can be shot to the pixel level of the display screen, and the compensation value of each pixel of the OLED display screen can be determined according to the difference between the actual display content of each pixel and the original image. The determined compensation value may be stored in an external flash (flash) chip on the OLED display panel circuit board. Here, the wiring board may be a Flexible wiring board (FPC).
For example, a 16-gray-scale picture of the OLED display screen can be shot, some pixels of the OLED display screen display 18 gray-scale brightness due to the mura phenomenon, the compensation values that the pixels need to record are-2, some pixels display 14 gray-scale brightness, the compensation values that the pixels need to record are +2, and after the CCD finishes shooting, the compensation values of-2 and +2 corresponding to each pixel are stored in the flash. Each time the OLED Display is turned on, a Display driver chip (DDIC) reads compensation value data of each pixel from the flash, and superimposes the compensation value on the original Display data, and outputs the result to the Display.
In the related technology, a Flash chip needs to be additionally arranged on the OLED display screen, the cost is high, and the FPC area of the OLED display screen is occupied. Moreover, when the OLED display screen module factory performs the De-mura process, burning equipment needs to be purchased, and after each OLED display screen determines the compensation value, the compensation value needs to be burned into Flash, so that the cost and the working hour are increased.
Fig. 1 is an illustration of an electronic device 10, the electronic device 10 comprising: a display screen 11 and a system-on-chip 12, wherein,
the system chip 12 is configured to request a server for a compensation parameter value of the display screen 11 based on the identification information of the display screen 11, and load the received compensation parameter value onto the system chip 12;
the driving chip 111 of the display screen 11 is configured to obtain the compensation parameter value loaded on the system chip 12 through an electrical connection with the system chip, and adjust a driving signal of a corresponding pixel based on the compensation parameter value.
Here, the display screen 11 may include an OLED display screen 11 or the like. The compensation parameter values of the display screen 11 may be determined by the production equipment of the OLED display screen 11 or the like. The compensation parameter value may be a compensation value for compensating a display parameter, such as luminance, gray scale and/or color, of at least one pixel of the OLED display screen 11.
In one embodiment, the first set of pins 1111 of the driver chip 111 is connected to the second set of pins 121 of the system chip 12 through first electrical connections, and the third set of pins 1112 of the driver chip 111 is connected to the fourth set of pins 122 of the system chip 12 through second electrical connections, wherein the first set of pins 1111 is different from the third set of pins 1112; the second set of pins 121 is different from the fourth set of pins 122; the first electrical connection is used for transmitting the image data sent by the system chip 12 to the driving chip;
the driving chip 111 is specifically configured to obtain the compensation parameter value loaded on the system chip 12 through the second electrical connection, and adjust the driving signal of the corresponding pixel based on the compensation parameter value.
At least two electrical connections are formed between the driving chip 111 of the display 11 and the system chip 12 of the electronic device 10, and the two electrically connected driving chips 111 and system chip 12 have different pins. Two electrical connections may be used to transmit data. The first electrical connection may be used for transmitting image data of the display screen 11, etc.
The first and second electrical connections may have a plurality of connection lines, respectively, and the first group of pins 1111, the second group of pins 121, the third group of pins 1112, and the fourth group of pins 122 may have 1 or more pins, respectively.
In one embodiment, the first electrical connection is used for carrying a MIPI data bus;
the second electrical connection is used for bearing an SPI data bus.
The MIPI data bus may be used to transmit high-speed data, such as image data and display control data, which are sent to the driver chip 111 by the system chip 12.
The SPI data bus is a serial transmission interface shorthand bus that connects the system chip 12 and peripheral devices. The transmission rate of the SPI data bus is lower than the transmission rate of the MIPI data bus.
The transmission rate required by the compensation parameter value is low, the transmission rate required by the image data is high, and the compensation parameter value is transmitted by adopting the SPI data bus, so that the problem of low transmission efficiency caused by the simultaneous transmission of two transmission rates by adopting the MIPI data bus can be solved. The image data transmission efficiency can be improved.
In one embodiment, the compensation parameter value is used for repairing the brightness unevenness mura of the display screen 11 pixel by pixel.
The following are exemplary: the compensation parameter value for repairing the mura of the display screen 11 may be determined by a production facility or the like of the display screen 11. The production equipment of the display panel 11 may first set that the display panel 11 displays at least one specific picture, for example, a 16-gray-scale picture, a 32-gray-scale picture, a 192-gray-scale picture, and then use a Charge Coupled Device (CCD) camera to respectively capture each picture. The resolution of the CCD camera can be taken to the pixel level of the display screen, and the compensation value of each pixel of the display screen 11 can be determined according to the difference between the actual display content of each pixel and the original image.
The production equipment determines the compensation parameter value of the display screen 11, and can upload the compensation parameter value of the display screen 11 to the server. Here, the server may be a server in a local area network, or may be a server in a wide area network, such as a cloud server.
Different display screens 11 may have different compensation parameter values. Each compensation parameter value stored in the server may be marked with identification information of the display screen 11 to which the compensation parameter value corresponds. The identification information may be used to uniquely identify one OLED display screen 11. In this way, the compensation parameter value and the identification information for each display screen 11 can be found in the server.
The identification information may be stored in a chip of the display screen 11 having memory capability, for example, may be stored in the driver chip 111 of the display screen 11. The identification information may also exist on the display screen 11 body in the form of a barcode, and may be acquired in the form of a code scanning or the like.
The compensation parameter values stored in the server may be used for downloading by a production facility or the electronic device 10 or the like that has finished assembling the OLED display 11.
The electronic device 10 may be a terminal or the like that employs the display screen 11 as an image information output device. The electronic device 10 can acquire identification information of the display screen 11 mounted on the electronic device 10. The identification information of the display screen 11 may be in the form of a bar code, or may be preset in a memory inside the display screen 11. The electronic device 10 may obtain the identification information of the display screen 11 by scanning a bar code or reading a memory of the display screen 11.
The electronic device 10 may determine the compensation parameter value of the display 11 installed on the electronic device 10 from the server according to the identification information of the display 11 installed on the electronic device 10. For example, the system chip 12 of the electronic device 10 may obtain the compensation parameter value of the display screen 11 installed on the electronic device 10 from a server through a network connection module of the electronic device 10, through a local area network or a wide area network, and the like.
In one embodiment, the system-on-chip 12 includes an SOC.
System-on-chip 12 the electronic device 10 may send the obtained compensation parameter values to the driver chip 111 of the display screen 11. The driving chip 111 may read the compensation parameter value from the SOC through the second electrical connection. The driving chip 111 of the display screen 11 may apply the compensation parameter value to the current display screen 11, thereby implementing display compensation. The driving chip 111 may be a Display Driver Integrated Circuit (DDIC) chip or the like. The driving chip 111 may superimpose the compensation parameter value on the driving signal and output the driving signal to the display 11, thereby implementing display compensation.
Here, the system chip 12 may be an SOC or the like of the electronic apparatus 10. After obtaining the compensation parameter values, SOC electronic device 10 may store the compensation parameter values in SOC system chip 12. For example, the compensation parameter value may be saved in a flash memory (flash) of the SOC, which may reduce the loss of memory content due to the electronic device 10 being powered off or the like.
The compensation parameter value stored in the memory of the SOC may provide the electronic device 10 with display compensation for its own display screen 11. When displaying, the driving chip 111 of the display screen 11 reads the compensation parameter value from the memory of the SOC through the second electrical connection, and applies the compensation parameter value to the current display screen 11, thereby implementing display compensation.
The driver chip 111 can read the compensation parameter value stored in the system chip 12 through a data bus, such as an SPI bus, etc., with the system chip 12
Therefore, on one hand, an additional flash memory and the like for storing the compensation parameter value are not needed in the display screen 11, the cost is reduced, and the board layout area of the circuit board of the display screen 11 is saved. On the other hand, in the assembling process of the display screen 11, burning equipment is not needed to burn an additional memory, so that the production steps are reduced, the production efficiency is improved, and the production cost is saved. On the other hand, different electric connections are adopted to respectively transmit image data and compensation parameter values, so that the problem of low transmission efficiency caused by the fact that data with different transmission speed requirements are transmitted in the same connection is solved.
In one embodiment, the system-on-chip 12 is further configured to: acquiring a calibration compensation parameter value of the display screen 11, wherein the calibration compensation parameter value is determined after the display screen 11 is assembled to the electronic device 10 and when a driving signal of a corresponding pixel is not adjusted by using the compensation parameter; determining whether the compensation parameter value is valid based on a difference value between the compensation parameter value and a check compensation parameter value;
the system chip 12 is specifically configured to: responsive to the compensation parameter value being valid, loading the received compensation parameter value onto the system chip 12.
In order to prevent the problems of transmission load error and the like in the process of obtaining the compensation parameter value from the server, after the compensation parameter value is downloaded, the display screen 11 can be checked again, namely, the verification compensation parameter value of the display screen 11 is determined again by adopting a mode of obtaining the compensation parameter value for the display screen 11 which is not subjected to display compensation.
Due to the influence of the test environment and the like, the compensation parameter value and the verification compensation parameter value are not necessarily identical, and whether the compensation parameter value is effective or not can be determined based on the range of the difference value of the compensation parameter value and the verification compensation parameter value.
When the compensation parameter value is determined to be valid, the compensation parameter value may be applied to the driving chip 111 for display compensation.
In one embodiment, the system chip 12 is specifically configured to:
determining that the compensation parameter value is valid in response to a difference value between the compensation parameter value and the verified compensation parameter value being less than or equal to a difference threshold value;
determining that the compensation parameter value is invalid in response to a difference value between the compensation parameter value and the verified compensation parameter value being greater than a difference threshold.
Since the obtained compensation parameter value and the verification compensation parameter value have a difference in detection environments such as a CCD, the compensation parameter value and the verification compensation parameter value obtained by the two detections performed on the same display screen 11 are not necessarily completely the same.
Here, a difference threshold value may be set in advance, and if the difference value between the compensation parameter value and the verification compensation parameter value is less than or equal to the difference threshold value, it is determined that the compensation parameter value acquired from the server is valid and may be applied to the display screen 11. If the difference value between the compensation parameter value and the verification compensation parameter value is greater than the difference threshold value, it is determined that the compensation parameter value obtained from the server is invalid and cannot be applied to the display screen 11. Here, the difference threshold may be 10%, or the like. That is, the difference value between the compensation parameter value and the verification compensation parameter value is less than or equal to 10%, determining that the compensation parameter value obtained from the server is valid, otherwise, determining that the compensation parameter value obtained from the server is invalid.
In one embodiment, the system chip 12 is further configured to obtain the identification information from the driving chip 111 through the first electrical connection.
The system chip 12 may use the first electrical connection to obtain the identification information from the driving chip 111, and obtain the compensation parameter value corresponding to the display screen 11 from the server based on the identification information. The system chip 12 may obtain the identification information of the display screen 11 from the configuration information of the display screen 11 reported by the driver chip 111 in the process of initializing the driver chip 111.
Fig. 2 is a flow chart illustrating a display method according to an exemplary embodiment, as shown in fig. 2, applied to an electronic device including a display screen, the method including the steps of:
step 201: acquiring identification information of a display screen contained in the electronic equipment;
step 202: requesting a compensation parameter value of the display screen from a server based on the identification information;
step 203: receiving the compensation parameter value;
step 204: writing the compensation parameter value into a driving chip of the display screen; the compensation parameter is used for the driving chip to adjust the driving signal of the corresponding pixel.
Here, the display screen may include an OLED display screen or the like. The compensation parameter value of the display screen can be determined by the production equipment of the OLED display screen and the like. The compensation parameter value may be a compensation value for compensating a display parameter, such as luminance, gray scale and/or color, of at least one pixel of the OLED display screen.
In one embodiment, the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
The following are exemplary: the compensation parameter value for repairing the display mura may be determined by a production facility of the display, or the like. The display screen production equipment may first set the display screen to display at least one specific picture, such as a 16-gray-scale picture, a 32-gray-scale picture, a 192-gray-scale picture, and then use a Charge Coupled Device (CCD) camera to respectively capture each picture. The CCD camera takes pictures to the pixel level, and the compensation value of each pixel of the display screen can be determined according to the difference between the actual display content of each pixel and the original picture.
The production equipment determines the compensation parameter value of the display screen, and the compensation parameter value of the display screen can be uploaded to the server. Here, the server may be a server in a local area network, or may be a server in a wide area network, such as a cloud server.
Different display screens may have different compensation parameter values. Each compensation parameter value stored in the server may be marked with identification information of the display screen to which the compensation parameter value corresponds. The identification information may be used to uniquely identify an OLED display. In this way, the compensation parameter values and identification information for each display screen can be found in the server.
The identification information may be stored in a chip of the display screen having memory capabilities, for example, in a driver chip of the display screen. The identification information can also exist on the display screen body in the form of a bar code, and can be acquired in the form of code scanning and the like.
The compensation parameter values stored in the server can be used for downloading by production equipment or electronic equipment for completing the assembly of the OLED display screen.
The electronic device may be a terminal or the like that employs a display screen as an image information output device. The electronic device may acquire identification information of a display screen on which the electronic device is mounted. The identification information of the display screen can be in a bar code form or can be preset in a memory inside the display screen. The electronic equipment can acquire the identification information of the display screen by scanning a bar code or reading a memory of the display screen and the like.
The electronic device may determine, from the server, a compensation parameter value of the display screen installed on the electronic device according to the identification information of the display screen installed on the electronic device. For example, the system chip of the electronic device may obtain the compensation parameter value of the display screen installed on the electronic device from the server through the network connection module of the electronic device, through the local area network or the wide area network, and the like.
In one embodiment, the system-on-chip includes an SOC.
The system chip can send the acquired compensation parameter value to a driving chip of the display screen. The driving chip of the display screen can apply the compensation parameter value to the current display screen, thereby realizing display compensation. The driving chip may be a Display Drive Integrated Circuit (DDIC) chip or the like.
The driving chip can superpose the compensation parameter value on the driving signal and output the driving signal to the display screen to realize display compensation.
Therefore, the compensation parameter value of each display screen is stored in the server, and identification is carried out by adopting the identification information of the display screen. The electronic equipment can accurately acquire the compensation parameter value corresponding to the display screen according to the identification information of the display screen. On the one hand, the electronic equipment can acquire the compensation parameter value of the display screen through the network, and the convenience of acquiring the compensation parameter value of the display screen is improved. On the other hand, the accuracy of obtaining the compensation parameter value is improved by adopting the identification information for identification. On the other hand, in the display screen assembling process, burning equipment is not needed to burn an additional memory, so that the production steps are reduced, the production efficiency is improved, and the production cost is saved.
In one embodiment, the writing the compensation parameter value into a driving chip of the display screen includes:
loading the received compensation parameter value onto a system chip of an electronic device;
and writing the compensation parameter value loaded on the system chip into the drive chip.
Here, the system chip may be an SOC of the electronic device or the like. After the SOC obtains the compensation parameter value, the compensation parameter value may be stored in the SOC. For example, the compensation parameter value may be saved in a flash memory (flash) of the SOC, which may reduce the loss of the stored content due to power failure or the like of the electronic device.
The compensation parameter value stored in the memory of the SOC can be used for displaying and compensating the display screen of the electronic device by the electronic device. When displaying, the driving chip of the display screen reads the compensation parameter value from the SOC memory and applies the compensation parameter value to the current display screen, thereby realizing display compensation.
The driver chip can read the compensation parameter value stored in the system chip through a data bus between the system chips, such as an SPI bus
Therefore, on one hand, an additional flash memory and the like for storing the compensation parameter values are not needed in the display screen, the cost is reduced, and the board layout area of the display screen circuit board is saved. On the other hand, in the display screen assembling process, burning equipment is not needed to burn an additional memory, so that the production steps are reduced, the production efficiency is improved, and the production cost is saved.
In one embodiment, the method further comprises:
acquiring a calibration compensation parameter value of the display screen, wherein the calibration compensation parameter value is determined after the display screen is assembled to the electronic equipment and when a driving signal of a corresponding pixel is not adjusted by adopting the compensation parameter; determining whether the compensation parameter value is valid based on a difference value between the compensation parameter value and a check compensation parameter value;
the writing the compensation parameter value into a driving chip of the display screen includes: and responding to the validity of the compensation parameter value, and writing the compensation parameter value into a driving chip of the display screen.
In order to prevent the problems of transmission load errors and the like in the process of obtaining the compensation parameter values from the server, after the compensation parameter values are downloaded, the display screen can be checked again, namely, the verification compensation parameter values of the display screen are determined again by adopting a mode of obtaining the compensation parameter values for the display screen which is not subjected to display compensation.
Here, the compensation parameter value may be determined before the display screen is mounted in the electronic device and uploaded to the server, and the verification compensation parameter value may be determined after the display screen is mounted in the electronic device. The calibration compensation parameter values can also be determined by shooting one or more gray-scale pictures by a CCD camera. The manner of obtaining the compensation parameter value is similar to the manner of obtaining the verification compensation parameter value, and is not described herein again. The environment for obtaining the compensation parameter value is different from the environment for obtaining the verification compensation parameter value, so that the compensation parameter value and the verification compensation parameter value are not necessarily completely the same, and whether the compensation parameter value is effective or not can be determined based on the range of the difference value between the compensation parameter value and the verification compensation parameter value.
And when the compensation parameter value is judged to be effective, the compensation parameter value can be applied to the driving chip for display compensation.
In one embodiment, the determining whether the compensation parameter value is valid based on a difference value between the compensation parameter value and a verification compensation parameter value includes:
determining that the compensation parameter value is valid in response to a difference value between the compensation parameter value and the verified compensation parameter value being less than or equal to a difference threshold value;
determining that the compensation parameter value is invalid in response to a difference value between the compensation parameter value and the verified compensation parameter value being greater than a difference threshold.
Because the difference of detection environments such as a CCD (charge coupled device) exists between the obtained compensation parameter value and the verified compensation parameter value, the compensation parameter value and the verified compensation parameter value which are respectively obtained by two times of detection aiming at the same display screen are not necessarily completely the same.
Here, a difference threshold value may be set in advance, and if the difference value between the compensation parameter value and the verification compensation parameter value is less than or equal to the difference threshold value, it is determined that the compensation parameter value acquired from the server is valid and may be applied to the display screen. And if the difference value between the compensation parameter value and the verification compensation parameter value is larger than the difference threshold value, determining that the compensation parameter value acquired from the server is invalid and cannot be applied to the display screen. Here, the difference threshold may be 10%, or the like. That is, the difference between the compensation parameter value and the verification compensation parameter value is less than or equal to 10%, determining that the compensation parameter value obtained from the server is valid, otherwise, determining that the compensation parameter value obtained from the server is invalid.
Fig. 3 is a diagram illustrating a display compensation parameter processing method applied to a production facility according to an exemplary embodiment, the method including:
step 301: determining a compensation parameter value of a pixel to be compensated in a display screen;
step 302: reporting the compensation parameter value and the identification information of the display screen to a server; the compensation parameter value is used for being issued by the server to the electronic device comprising the display screen so as to adjust the driving signal of the corresponding pixel on the display screen.
Here, the display screen may include an OLED display screen or the like. The compensation parameter value of the display screen can be determined by the production equipment of the OLED display screen and the like. The compensation parameter value may be a compensation value for compensating a display parameter, such as luminance, gray scale and/or color, of at least one pixel of the OLED display screen.
In one embodiment, the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
In one embodiment, the determining a compensation parameter value of a pixel to be compensated in a display screen includes:
displaying a preset gray scale image on the display screen;
collecting an image displayed by the display screen by adopting a CCD camera;
and determining the pixel to be compensated and the compensation parameter value of the pixel to be compensated based on the difference between the preset gray-scale image and the acquired image displayed by the display screen.
Exemplary compensation parameter values for repairing the mura of the display screen may be determined by a production facility of the display screen, or the like. The display screen production equipment may first set the display screen to display at least one specific picture, such as a 16-gray-scale picture, a 32-gray-scale picture, a 192-gray-scale picture, and then use a Charge Coupled Device (CCD) camera to respectively capture each picture. The CCD camera takes pictures to the pixel level, and the compensation value of each pixel of the display screen can be determined according to the difference between the actual display content of each pixel and the original picture.
The production equipment determines the compensation parameter value of the display screen, and the compensation parameter value of the display screen can be uploaded to the server. Here, the server may be a server in a local area network, or may be a server in a wide area network, such as a cloud server.
Different display screens may have different compensation parameter values. Each compensation parameter value stored in the server may be marked with identification information of the display screen to which the compensation parameter value corresponds. The identification information may be used to uniquely identify an OLED display screen. In this way, the compensation parameter values and identification information for each display screen can be found in the server.
The identification information may be stored in a chip of the display screen having memory capabilities, for example, in a driver chip of the display screen. The identification information can also exist on the display screen body in the form of a bar code, and can be acquired in the form of code scanning and the like.
The compensation parameter values stored in the server can be used for downloading by production equipment or electronic equipment for completing the assembly of the OLED display screen.
The electronic device may be a terminal or the like that employs a display screen as an image information output device. The electronic device may acquire identification information of a display screen on which the electronic device is mounted. The identification information of the display screen can be in a bar code form or can be preset in a memory inside the display screen. The electronic equipment can acquire the identification information of the display screen by scanning a bar code or reading a memory of the display screen and the like.
The electronic device may determine, from the server, a compensation parameter value of the display screen installed on the electronic device according to the identification information of the display screen installed on the electronic device. For example, the system chip of the electronic device may obtain the compensation parameter value of the display screen installed on the electronic device from the server through the network connection module of the electronic device, through the local area network or the wide area network, and the like.
In one embodiment, the system-on-chip includes an SOC.
The system chip can send the acquired compensation parameter value to a driving chip of the display screen. The driving chip of the display screen can apply the compensation parameter value to the current display screen, thereby realizing display compensation. The driving chip may be a Display Driver Integrated Circuit (DDIC) chip or the like.
The driving chip can superpose the compensation parameter value on the driving signal and output the driving signal to the display screen to realize display compensation.
Therefore, the compensation parameter value of each display screen is stored in the server, and identification is carried out by adopting the identification information of the display screen. The electronic equipment can accurately acquire the compensation parameter value corresponding to the display screen according to the identification information of the display screen. On the one hand, the electronic equipment can acquire the compensation parameter value of the display screen through the network, and the convenience of acquiring the compensation parameter value of the display screen is improved. On the other hand, the accuracy of obtaining the compensation parameter value is improved by adopting the identification information for identification. On the other hand, in the display screen assembling process, burning equipment is not needed to burn an additional memory, so that the production steps are reduced, the production efficiency is improved, and the production cost is saved.
The following provides 1 specific example in conjunction with any of the embodiments described above:
the first step is as follows: storing compensation values on a cloud server
The display screen module factory uses the CCD camera to shoot different pictures and generate compensation parameter values, but the compensation values are not stored in Flash of the display screen any more, the compensation parameter values of each display screen are numbered, and the numbers can be the same as display screen Identifications (IDs) and stored in the cloud server.
The second step is that: download compensation value during mobile phone production
After the mobile phone is assembled, a work station is processed, and the work to be completed by the work station is as follows: the SOC reads back the ID of the display screen, and then finds and downloads the compensation parameter value file with the same number as the ID from the cloud server and stores the compensation parameter value file in the SOC.
The third step: second inspection
In order to prevent the problems of wrong downloading of compensation parameter value files and the like, in the work station, secondary inspection needs to be completed, namely, a display screen without compensation is shot once, a correction compensation parameter value is recorded, in order to improve production line efficiency, a picture can be shot by using a mobile phone camera in the shooting, the correction compensation parameter value is compared with a compensation parameter value of a corresponding picture downloaded from a cloud, and if the data volume of inconsistent compensation parameter values is within 10%, the picture passes (Pass) or else the picture fails (Fail).
A fourth step of: display screen compensation
When the display screen is on each time, the DDIC directly reads the compensation value from the SOC, the SPI signal is used for data transmission, and then the compensation parameter value is superposed on the original display data and then output to the display screen.
Fig. 4 is a block diagram of a display device 100 according to an exemplary embodiment, applied to an electronic device including a display screen, the device 100 including: a first obtaining module 110, a requesting module 120, a receiving module 130, and a writing module 140, wherein,
the first obtaining module 110 is configured to obtain identification information of a display screen included in the electronic device;
the request module 120 is configured to request a compensation parameter value of the display screen from a server based on the identification information;
the receiving module 130 is configured to receive the compensation parameter value;
the writing module 140 is configured to write the compensation parameter value into a driving chip of the display screen; the compensation parameter is used for the driving chip to adjust the driving signal of the corresponding pixel.
In one embodiment, the writing module 140 includes:
a loading sub-module 141 configured to load the received compensation parameter value onto a system chip of the electronic device;
a first writing sub-module 142 configured to write the compensation parameter value loaded on the system chip into the driver chip.
In one embodiment, the system-on-chip includes an SOC.
In one embodiment, the apparatus 100 further comprises:
a second obtaining module 150, configured to obtain a calibration compensation parameter value of the display screen, where the calibration compensation parameter value is determined after the display screen is assembled to the electronic device and when the driving signal of the corresponding pixel is not adjusted by using the compensation parameter;
a first determining module 160 configured to determine whether the compensation parameter value is valid based on a difference value between the compensation parameter value and a check compensation parameter value;
the writing module 140 includes:
the second writing sub-module 143 is configured to write the compensation parameter value into a driving chip of the display screen in response to the compensation parameter value being valid.
In one embodiment, the first determining module 160 includes:
a first determination sub-module 161 configured to determine that the compensation parameter value is valid in response to a difference value between the compensation parameter value and the verified compensation parameter value being less than or equal to a difference threshold value;
a second determining sub-module 162 configured to determine that the compensation parameter value is invalid in response to a difference value between the compensation parameter value and the verified compensation parameter value being greater than a difference threshold.
In one embodiment, the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
Fig. 5 is a block diagram illustrating a display compensation parameter processing apparatus 200 according to an exemplary embodiment, applied to a production facility, the apparatus 200 including: a second determining module 210 and a reporting module 220, wherein,
the second determining module 210 is configured to determine a compensation parameter value of a pixel to be compensated in the display screen;
the reporting module 220 is configured to report the compensation parameter value and the identification information of the display screen to a server; the compensation parameter value is used for being issued by the server to the electronic device comprising the display screen so as to adjust the driving signal of the corresponding pixel on the display screen.
In one embodiment, the second determining module 210 includes:
a display sub-module 211 configured to display a predetermined grayscale image on the display screen;
a self-collecting module 212 configured to collect an image displayed by the display screen using a CCD camera;
a third determining sub-module 213 configured to determine the pixel to be compensated and the compensation parameter value of the pixel to be compensated based on a difference between the predetermined grayscale image and the captured image displayed on the display screen.
In one embodiment, the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 6 illustrates a block diagram of a display or display compensation parameter processing apparatus 800, according to an example embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 6, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operation at the device 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
Power components 806 provide power to the various components of device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 800.
The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed state of the device 800, the relative positioning of the components, such as a display and keypad of the apparatus 800, the sensor assembly 814 may also detect a change in position of the apparatus 800 or a component of the apparatus 800, the presence or absence of user contact with the apparatus 800, orientation or acceleration/deceleration of the apparatus 800, and a change in temperature of the apparatus 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as Wi-Fi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer readable storage medium, wherein instructions, when executed by a processor of a terminal, enable the terminal to perform the steps of one of the above-described display methods or display compensation parameter processing methods.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (28)

1. An electronic device, characterized in that the electronic device comprises: a display screen and a system-on-chip, wherein,
the system chip is used for requesting a compensation parameter value of the display screen from a server based on the identification information of the display screen and loading the received compensation parameter value to the system chip;
and the driving chip of the display screen is used for acquiring the compensation parameter value loaded on the system chip through the electric connection with the system chip and adjusting the driving signal of the corresponding pixel based on the compensation parameter value.
2. The electronic device of claim 1,
the system-on-chip is further configured to: acquiring a calibration compensation parameter value of the display screen, wherein the calibration compensation parameter value is determined after the display screen is assembled to the electronic equipment and when a driving signal of a corresponding pixel is not adjusted by adopting the compensation parameter; determining whether the compensation parameter value is valid based on a difference value between the compensation parameter value and a check compensation parameter value;
the system chip is specifically configured to: loading the received compensation parameter value onto the system chip in response to the compensation parameter value being valid.
3. The electronic device of claim 2, wherein the system-on-chip is specifically configured to:
determining that the compensation parameter value is valid in response to a difference value between the compensation parameter value and the verified compensation parameter value being less than or equal to a difference threshold value;
determining that the compensation parameter value is invalid in response to a difference value between the compensation parameter value and the verified compensation parameter value being greater than a difference threshold.
4. The electronic device of any of claims 1-3, wherein a first set of pins of the driver chip are connected to a second set of pins of the system chip by first electrical connections, and a third set of pins of the driver chip are connected to a fourth set of pins of the system chip by second electrical connections, wherein the first set of pins is different from the third set of pins; the second set of pins is different from the fourth set of pins; the first electrical connection is used for transmitting image data sent by the system chip to the driving chip;
the driving chip is specifically configured to obtain the compensation parameter value loaded onto the system chip through the second electrical connection, and adjust the driving signal of the corresponding pixel based on the compensation parameter value.
5. The electronic device of claim 4,
the system chip is further configured to obtain the identification information from the driver chip through the first electrical connection.
6. The electronic device of claim 4,
the first electric connection is used for bearing a mobile industry processor interface MIPI data bus;
and the second electric connection is used for bearing a Serial Peripheral Interface (SPI) data bus.
7. The electronic device of any of claims 1-3,
and the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
8. The electronic device of any of claims 1-3, wherein the system-on-chip comprises a system-on-chip (SOC).
9. A display method is applied to an electronic device comprising a display screen, and the method comprises the following steps:
acquiring identification information of a display screen contained in the electronic equipment;
requesting a compensation parameter value of the display screen from a server based on the identification information;
receiving the compensation parameter value;
writing the compensation parameter value into a driving chip of the display screen; the compensation parameter is used for the driving chip to adjust the driving signal of the corresponding pixel.
10. The method of claim 9, wherein writing the compensation parameter value into a driver chip of the display screen comprises:
loading the received compensation parameter value on a system chip of an electronic device;
and writing the compensation parameter value loaded on the system chip into the drive chip.
11. The method of claim 10, wherein the system-on-chip comprises a system-on-chip (SOC).
12. The method according to any one of claims 9 to 11, further comprising:
acquiring a calibration compensation parameter value of the display screen, wherein the calibration compensation parameter value is determined after the display screen is assembled to the electronic equipment and when a driving signal of a corresponding pixel is not adjusted by adopting the compensation parameter;
determining whether the compensation parameter value is valid based on a difference value between the compensation parameter value and a check compensation parameter value;
the writing the compensation parameter value into a driving chip of the display screen includes: and responding to the validity of the compensation parameter value, and writing the compensation parameter value into a driving chip of the display screen.
13. The method of claim 12, wherein determining whether the compensation parameter value is valid based on a difference between the compensation parameter value and a verification compensation parameter value comprises:
determining that the compensation parameter value is valid in response to a difference value between the compensation parameter value and the verified compensation parameter value being less than or equal to a difference threshold value;
determining that the compensation parameter value is invalid in response to a difference value between the compensation parameter value and the verified compensation parameter value being greater than a difference threshold.
14. The method of claim 12,
and the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
15. A display compensation parameter processing method is applied to production equipment, and is characterized by comprising the following steps:
determining a compensation parameter value of a pixel to be compensated in a display screen;
reporting the compensation parameter value and the identification information of the display screen to a server; the compensation parameter value is used for being issued by the server to the electronic device comprising the display screen so as to adjust the driving signal of the corresponding pixel on the display screen.
16. The method of claim 15, wherein determining the compensation parameter value for the pixel to be compensated within the display screen comprises:
displaying a preset gray-scale image on the display screen;
collecting an image displayed by the display screen by adopting a Charge Coupled Device (CCD) camera;
and determining the pixel to be compensated and the compensation parameter value of the pixel to be compensated based on the difference between the preset gray scale image and the acquired image displayed by the display screen.
17. The method according to claim 15 or 16,
and the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
18. A display device, applied to an electronic apparatus including a display screen, the device comprising: a first obtaining module, a requesting module, a receiving module, and a writing module, wherein,
the first acquisition module is configured to acquire identification information of a display screen included in the electronic device;
the request module is configured to request a compensation parameter value of the display screen from a server based on the identification information;
the receiving module is configured to receive the compensation parameter value;
the writing module is configured to write the compensation parameter value into a driving chip of the display screen; the compensation parameter is used for the driving chip to adjust the driving signal of the corresponding pixel.
19. The apparatus of claim 18, wherein the write module comprises:
a loading sub-module configured to load the received compensation parameter value onto a system chip of an electronic device;
a first writing submodule configured to write the compensation parameter value loaded on the system chip into the driver chip.
20. The apparatus of claim 19, wherein the system-on-chip comprises a system-on-chip (SOC).
21. The apparatus of any one of claims 18 to 20, further comprising:
a second obtaining module, configured to obtain a calibration compensation parameter value of the display screen, where the calibration compensation parameter value is determined after the display screen is assembled to the electronic device and when a driving signal of a corresponding pixel is not adjusted by using the compensation parameter;
a first determination module configured to determine whether the compensation parameter value is valid based on a difference value between the compensation parameter value and a check compensation parameter value;
the write module includes:
and the second writing sub-module is configured to respond to the fact that the compensation parameter value is valid, and write the compensation parameter value into a driving chip of the display screen.
22. The apparatus of claim 21, wherein the first determining module comprises:
a first determination sub-module configured to determine that the compensation parameter value is valid in response to a difference value between the compensation parameter value and the verified compensation parameter value being less than or equal to a difference threshold value;
a second determination sub-module configured to determine that the compensation parameter value is invalid in response to a difference value between the compensation parameter value and the verified compensation parameter value being greater than a difference threshold.
23. The apparatus of claim 21,
and the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
24. A display compensation parameter processing device applied to production equipment is characterized by comprising: a second determining module and a reporting module, wherein,
the second determining module is configured to determine a compensation parameter value of a pixel to be compensated in the display screen;
the reporting module is configured to report the compensation parameter value and the identification information of the display screen to a server; the compensation parameter value is used for being issued by the server to the electronic device comprising the display screen so as to adjust the driving signal of the corresponding pixel on the display screen.
25. The apparatus of claim 24, wherein the second determining module comprises:
the display sub-module is configured to display a preset gray scale image on the display screen;
the acquisition self-module is configured to acquire an image displayed by the display screen by adopting a Charge Coupled Device (CCD) camera;
a third determining sub-module configured to determine the pixel to be compensated and the compensation parameter value of the pixel to be compensated based on a difference between the predetermined grayscale image and the acquired image displayed on the display screen.
26. The apparatus of claim 24 or 25,
and the compensation parameter value is used for repairing the brightness unevenness mura of the display screen pixel by pixel.
27. An electronic device, comprising: processor, transceiver, memory and executable program stored on the memory and executable by the processor, wherein the processor executes the executable program to perform the display method according to any one of claims 9 to 14, the steps thereof, or the steps of the compensation parameter processing method according to any one of claims 15 to 17.
28. A storage medium on which an executable program is stored, the executable program when executed by a processor implementing the steps of the display method according to any one of claims 9 to 14 or the steps of the compensation parameter processing method according to any one of claims 15 to 17.
CN202110001571.7A 2021-01-04 2021-01-04 Electronic equipment, display method, display device and storage medium Pending CN114724506A (en)

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CN202110001571.7A CN114724506A (en) 2021-01-04 2021-01-04 Electronic equipment, display method, display device and storage medium

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US20140203998A1 (en) * 2013-01-18 2014-07-24 Shao-Yang Wang Color compensation system for display device
CN108898991A (en) * 2018-07-25 2018-11-27 昆山国显光电有限公司 The acquisition of offset data and transmission method and intelligent terminal
CN111105760A (en) * 2018-10-26 2020-05-05 陕西坤同半导体科技有限公司 Mura compensation method and system of display equipment and display equipment
CN111341264A (en) * 2018-12-19 2020-06-26 陕西坤同半导体科技有限公司 Optical compensation data transmission device of display panel
CN111739459A (en) * 2020-08-20 2020-10-02 武汉精测电子集团股份有限公司 Cloud-based mura repairing method and system for display panel
CN111899692A (en) * 2020-08-24 2020-11-06 武汉天马微电子有限公司 OLED display device, compensation data power-on transmission method and image display method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140203998A1 (en) * 2013-01-18 2014-07-24 Shao-Yang Wang Color compensation system for display device
CN108898991A (en) * 2018-07-25 2018-11-27 昆山国显光电有限公司 The acquisition of offset data and transmission method and intelligent terminal
CN111105760A (en) * 2018-10-26 2020-05-05 陕西坤同半导体科技有限公司 Mura compensation method and system of display equipment and display equipment
CN111341264A (en) * 2018-12-19 2020-06-26 陕西坤同半导体科技有限公司 Optical compensation data transmission device of display panel
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