CN106373523B - Spliced bright and dark line compensation method - Google Patents
Spliced bright and dark line compensation method Download PDFInfo
- Publication number
- CN106373523B CN106373523B CN201611022874.2A CN201611022874A CN106373523B CN 106373523 B CN106373523 B CN 106373523B CN 201611022874 A CN201611022874 A CN 201611022874A CN 106373523 B CN106373523 B CN 106373523B
- Authority
- CN
- China
- Prior art keywords
- led display
- led lamp
- led
- control system
- brightness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
The invention provides a spliced bright and dark line compensation method, which comprises the following steps: (i) controlling the LED display screen to display an image for the image acquisition equipment to shoot so as to obtain an image for correction; (ii) processing the image for correction to obtain the brightness compensation quantity of a plurality of LED lamp points at the position of the splicing gap needing to be corrected in the LED display screen; and (iii) sending the brightness compensation quantity of the plurality of LED lamp points at the positions of all splicing gaps needing to be corrected to LED display control system hardware of the LED display screen at one time so as to update the brightness and chrominance correction coefficients corresponding to the plurality of LED lamp points in the original brightness and chrominance correction coefficients in the LED display control system hardware. Therefore, the invention can carry out secondary correction on bright and dark lines of the LED display screen without an original database file; and even, the brightness compensation quantity is transmitted to the LED display control system hardware at one time by generating a two-dimensional image, so that the speed is high and the efficiency is high.
Description
Technical Field
The invention relates to the technical field of LED display correction, in particular to a spliced bright and dark line compensation method.
Background
The LED display screen is formed by splicing a plurality of LED boxes or LED display modules (which are collectively called as splicing units), each splicing unit can be corrected in a factory to ensure that the uniformity of brightness and chroma of the LED display screen is good when the LED display screen leaves a factory, and the distance between LED lamp points at the edges of adjacent splicing units at the splicing positions of the splicing units and the splicing units is possibly larger than or smaller than the pixel center distance of the LED lamp points at other positions due to the limitation of process reasons such as machining precision, splicing precision and the like in the splicing process, and is called as a splicing gap; at this time, the luminous intensity of the LED lamp point at this position will change, and the influence on the display quality is mainly shown as a bright line or a dark line when displaying a low-frequency image, which is called as a spliced bright and dark line of the LED display screen, and is called as a spliced bright and dark line or a spliced bright and dark line for short. When the center distance of the lamp point pixels of the LED display screen is smaller, the problem is particularly prominent, and the display quality is seriously influenced.
If the LED display screen is subjected to production line correction or box body correction or the uniformity of the screen body is good, only bright and dark lines caused by splicing are needed, and the bright and dark lines can be spliced only on site.
In the prior art, an area-array camera is used for collecting luminance and chrominance information of an LED display screen, then information such as the position of a gap, the width of the gap and the like is located according to a certain algorithm, compensation quantity is calculated, then an original luminance and chrominance correction coefficient is obtained from an original database, if the LED display screen is not corrected, the luminance correction coefficient is considered to be 1, the chrominance correction coefficient is considered to be 0, and finally the compensation quantity is applied to the original luminance and chrominance correction coefficient.
Although the prior art has solved the problem that manual regulation light and dark line operation is complicated, efficiency is lower, still have some shortcomings, for example: 1) when the bright and dark lines are corrected, the correction condition in front of the LED display screen must be known; 2) if the LED display screen is originally corrected in a full screen mode and bright and dark lines are corrected during the full screen correction, restoring an original bright and dark line correction coefficient which does not contain the bright and dark line correction according to the recorded gap information at that time, and uploading the original bright and dark line correction coefficient to the LED display control system hardware of the LED display screen again to start photographing by the camera so as to eliminate the bright and dark lines; and 3) if the LED display screen is corrected by the box body originally, the bright and dark line correction coefficients can be applied to corresponding positions only by knowing the real arrangement position of the box body in the actual environment, or the box body data is converted into a full-screen database according to the arrangement position of the box body. The above three disadvantages cause the following limitations in the prior art: the original database is required to carry out secondary bright and dark line correction; and in case of data loss or box position recording errors, the display effect is problematic after the data is uploaded to the LED display control system hardware.
Disclosure of Invention
Therefore, aiming at the defects and shortcomings in the prior art, the invention provides a spliced bright and dark line compensation method.
Specifically, the spliced bright and dark line compensation method provided by the embodiment of the invention is suitable for spliced bright and dark line compensation of an LED display screen, and the LED display screen comprises a plurality of spliced units. The spliced bright and dark line compensation method comprises the following steps: (i) controlling the LED display screen to display images for the image acquisition equipment to shoot so as to obtain images for correction; (ii) processing the image for correction to obtain the brightness compensation quantity of a plurality of LED lamp points at the splicing gap position needing to be corrected in the LED display screen; and (iii) sending the brightness compensation quantity of the plurality of LED lamp points at the positions of all splicing gaps needing to be corrected to LED display control system hardware of the LED display screen at one time, so that the LED display control system hardware updates the brightness and chrominance correction coefficients corresponding to the plurality of LED lamp points in the original brightness and chrominance correction coefficients in the LED display control system hardware by using the brightness compensation quantity without changing the original brightness and chrominance correction coefficients corresponding to the LED lamp points except the plurality of LED lamp points.
In one embodiment of the present invention, in step (iii), updating the luminance and chrominance correction coefficients corresponding to the plurality of LED lamps in the original luminance and chrominance correction coefficients in the LED display control system hardware by using the luminance compensation amount specifically includes: and multiplying the brightness compensation quantity by the brightness component in the original brightness and chroma correction coefficient of the corresponding LED lamp point.
In one embodiment of the present invention, in step (iii), the sending, to the LED display control system hardware of the LED display screen, the brightness compensation amounts of the plurality of LED lamp points at all positions of the splicing gap that need to be corrected at one time includes: storing the brightness compensation quantity of the plurality of LED lamp points at the splicing gap position needing to be corrected as a file in a mode of associating the LED lamp point positions; and sending the file to the LED display control system hardware.
In one embodiment of the present invention, in step (iii), the sending, to the LED display control system hardware of the LED display screen, the brightness compensation amounts of the plurality of LED lamp points at all positions of the splicing gap that need to be corrected at one time includes: generating a two-dimensional image with the resolution consistent with that of the LED display screen so that each image pixel point on the two-dimensional image and the LED lamp points of the LED display screen form a one-to-one corresponding relation, and setting the value of the image pixel points of the plurality of LED lamp points corresponding to the splicing gap position needing to be corrected as the brightness compensation quantity and setting the value of the image pixel points of the LED lamp points except the plurality of LED lamp points as 0 in the generated two-dimensional image; and transmitting the two-dimensional image to the LED display control system hardware through a video interface.
In one embodiment of the present invention, in step (iii), updating the luminance and chrominance correction coefficients corresponding to the plurality of LED lamps in the original luminance and chrominance correction coefficients in the LED display control system hardware by using the luminance compensation amount specifically includes: receiving the two-dimensional image by a sending card in the LED display control system hardware, analyzing the two-dimensional image to read out position coordinates and brightness compensation quantity corresponding to all image pixel points with values different from 0 in the two-dimensional image to form a plurality of groups of LED lamp point positions and brightness compensation quantity data, and transmitting the plurality of groups of LED lamp point positions and brightness compensation quantity data to a receiving card in the LED display control system hardware; and updating the brightness and chrominance correction coefficients corresponding to the LED lamp points in the original brightness and chrominance correction coefficients in the receiving card by the receiving card according to the positions of the LED lamp points and the luminance compensation quantity data.
In addition, another embodiment of the invention provides a spliced bright and dark line compensation method, which is suitable for spliced bright and dark line compensation of an LED display screen, wherein the LED display screen comprises a plurality of spliced units. The spliced bright and dark line compensation method comprises the following steps: controlling the LED display screen to display images for the image acquisition equipment to shoot so as to obtain images for correction; processing the image for correction to obtain compensation quantity of a plurality of LED lamp points at the position of the splicing gap needing to be corrected in the LED display screen; saving the compensation quantity of the plurality of LED lamp points at the position of the splicing gap needing to be corrected as a file in a mode of associating the LED lamp point positions; and sending the file to the LED display control system hardware so that the LED display control system hardware updates the brightness and chrominance correction coefficients corresponding to the LED lamps in the original brightness and chrominance correction coefficients in the LED display control system hardware by using the compensation amount in the file.
In an embodiment of the present invention, the updating of the luminance and chrominance correction coefficients corresponding to the plurality of LED lamps in the original luminance and chrominance correction coefficients in the LED display control system hardware by using the compensation amount in the file specifically includes: and multiplying the compensation quantity in the file by the brightness component in the original brightness and chroma correction coefficient of the corresponding LED lamp point.
In addition, another embodiment of the present invention provides a spliced bright and dark line compensation method, which is suitable for the spliced bright and dark line compensation of an LED display screen, and the LED display screen includes a plurality of splicing units spliced together. The spliced bright and dark line compensation method comprises the following steps: controlling the LED display screen to display images for the image acquisition equipment to shoot so as to obtain images for correction; processing the image for correction to obtain compensation quantity of a plurality of LED lamp points at the position of the splicing gap needing to be corrected in the LED display screen; generating a two-dimensional image with the resolution consistent with that of the LED display screen so that each image pixel point on the two-dimensional image and the LED lamp points of the LED display screen form a one-to-one corresponding relation, and setting the value of the image pixel points of the plurality of LED lamp points corresponding to the splicing gap position needing to be corrected as the compensation amount and setting the value of the image pixel points of the LED lamp points except the plurality of LED lamp points as 0 in the generated two-dimensional image; and transmitting the two-dimensional image to the LED display control system hardware through a video interface so that the LED display control system hardware updates the brightness and chrominance correction coefficients corresponding to the LED lamps in the original brightness and chrominance correction coefficients of the LED display control system hardware according to the two-dimensional image.
In an embodiment of the present invention, the updating of the luminance and chrominance correction coefficients corresponding to the plurality of LED lamps in the original luminance and chrominance correction coefficients in the LED display control system hardware according to the two-dimensional image specifically includes: receiving the two-dimensional image by a sending card in the LED display control system hardware, analyzing the two-dimensional image to read out position coordinates and brightness compensation quantity corresponding to all image pixel points with values different from 0 in the two-dimensional image to form a plurality of groups of LED lamp point positions and brightness compensation quantity data, and transmitting the plurality of groups of LED lamp point positions and brightness compensation quantity data to a receiving card in the LED display control system hardware; and updating the brightness and chrominance correction coefficients corresponding to the LED lamp points in the original brightness and chrominance correction coefficients in the receiving card by the receiving card according to the positions of the LED lamp points and the luminance compensation quantity data.
In an embodiment of the present invention, the updating of the luminance and chrominance correction coefficients corresponding to the plurality of LED lamps in the original luminance and chrominance correction coefficients in the LED display control system hardware according to the two-dimensional image specifically includes: and after receiving the two-dimensional image, a receiving card in the LED display control system intercepts the two-dimensional image according to the self loading range to obtain values of image pixel points of all the LED lamp points corresponding to the self loading range, then reads out the position coordinates and the brightness compensation quantity of the LED lamp points corresponding to all the non-0 data of the intercepted part, and updates the original brightness correction coefficients of the LED lamp points at the corresponding positions.
As can be seen from the above, the embodiments of the present invention can achieve one or more of the following advantages: (1) the bright and dark lines of the LED display screen can be corrected for the second time without the original database file; and (2) the compensation quantity (namely, the bright and dark line correction coefficient) related to the LED lamp point position is transmitted to the LED display control system hardware once in a mode of generating a two-dimensional image, so that the speed is high and the efficiency is high.
Detailed Description
The present invention will be described in detail with reference to the following embodiments in order to make the aforementioned objects, features and advantages of the invention more comprehensible.
[ first embodiment ] A method for manufacturing a semiconductor device
In the first embodiment of the invention, the calculated splicing gap position and the compensation amount are recorded as a file, the file is sent to the LED display control system hardware, and the LED display control system hardware acts the compensation amount on the corresponding LED lamp points according to the splicing gap position.
Specifically, the method for correcting the spliced bright and dark lines of the present embodiment includes the following steps (1), (2), (3), (4), (5) and (6), for example.
(1) And controlling the LED display screen to be corrected to display full bright images or other images such as lighting at intervals and block lighting at intervals, wherein the images can be pure-color (red, green, blue, white, cyan, blue, purple and the like) images or other images.
(2) An image displayed on an LED display screen is captured by an image capturing device such as a camera to obtain a correction image that requires the minimum units to be separable for spot positioning.
(3) Analyzing the brightness distribution and position distribution of the acquired correction image, whether the correction image is a full-bright image or a partition point image or a partition block image, firstly positioning a minimum unit (such as a single LED lamp point lighted in the full-bright image, a single LED lamp point lighted in the partition point image or a bright block in the partition block image) by using a point positioning method, then positioning to a central point of the minimum unit by using a gray scale gravity center method, acquiring coordinates of the central point of the minimum unit, calculating the distance between the central points of the minimum units, wherein the position where the distance is greater than or less than other minimum units is necessarily the position of a splicing gap, and then calculating the ratio of the distance to the average distance of other positions to obtain the compensation amount of the position, wherein the specific calculation method can be found in the application No. 201510357954.2 applied by the Miniwanwa electronic technology Limited in 2015 06/25, the invention named as a "splicing bright line and dark line correction method" applied in 2015 06/25, and the invention patent application No. 2015 The invention discloses a Chinese patent application with the number of 201510357631.3 and the name of 'splicing bright and dark line correction method', wherein the whole contents of the two patent applications are cited as the constituent parts of the specification; moreover, the point positioning method and the gray scale gravity center method are common image processing techniques in the field of LED display screen calibration technology, and therefore are not described herein again. Or, the gap position is obtained according to other modes (for example, the position of the splicing gap is known by knowing the size of the splicing unit, which is mainly used for the condition that the sizes of the splicing units are consistent; or the position of the splicing gap is input by a user), and then the compensation quantity is calculated according to the brightness analysis.
(4) The splicing gap position needing to be corrected in the LED display screen and the compensation quantity of each LED lamp point at the splicing gap position are stored into a file, and here, it can be understood that the splicing gap position is represented by the position coordinate of each LED lamp point at the splicing gap position.
(5) Transmitting the file to LED display control system hardware, wherein the file typically comprises all splicing gap positions and compensation quantities needing to be corrected on an LED display screen, and transmitting the compensation quantities to the LED display control system hardware in batch at one time; further, as for the LED display control system hardware herein, a synchronous control system typically includes a broadcast control computer, a sending card and a receiving card, and accordingly the file can be transmitted to the broadcast control computer through a serial port (e.g., RS232), USB or network, while an asynchronous control system typically includes an asynchronous control card and even a receiving card connected to the asynchronous control card.
(6) The LED display control system hardware (such as a receiving card therein) analyzes the received file to obtain all splicing gap positions and compensation quantities which need to be corrected, and then the splicing gap positions and the compensation quantities are correspondingly applied to corresponding LED lamp point positions according to the splicing gap positions and the compensation quantities recorded in the file. Typically, the compensation amount of a single LED lamp point at the position of the splicing gap in the file is a number, and the splicing gap brings about a difference in visual brightness, and taking an RGB full-color LED display screen as an example, it is only necessary to multiply the compensation amount by the red, green, and blue brightness components of the original correction coefficients of the LED lamp point to be acted on.
It is worth mentioning that, under a general condition, the splicing gap does not change along with the difference of image display, and the compensation quantity of each primary color LED lamp point in the same pixel point at the same splicing gap uses the same value, but sometimes due to the problem of welding process, the phenomenon that the relative positions of the primary color LED lamp points in the pixel points, such as red, green and blue lamps, are inconsistent may occur, and under this condition, three images of red, green and blue may be displayed, and the gap positions and the compensation quantities of red, green and blue are calculated respectively.
[ second embodiment ]
The second embodiment of the invention converts the calculated splicing gap position and the compensation amount into a two-dimensional image, sends the two-dimensional image to the LED display control system hardware through a video interface such as a DVI channel, analyzes the two-dimensional image by the LED display control system hardware, obtains the splicing gap position and the compensation amount, and respectively acts on the corresponding LED lamp points
Specifically, the method for correcting the spliced bright and dark lines of the present embodiment includes the following steps (a), (b), (c), (d), (e), (f) and (g).
(a) And controlling the LED display screen to be corrected to display full bright images or other images such as alternate lighting and alternate block lighting.
(b) The image displayed on the LED display screen is captured by an image capturing device such as a camera to obtain a correction image.
(c) The specific calculation method can be seen in chinese patent application with application number 201510357954.2 and invented "spliced bright and dark line correction method" filed by the company No. sienna, nova, electronic technology, ltd at 2015, 06, 25, and chinese patent application with application number 201510357631.3 and invented "spliced bright and dark line correction method" filed at 2015, 06, 25. Or, the position of the splicing gap is obtained according to other modes (for example, the position of the splicing gap is known by knowing the size of the splicing unit, the mode is mainly used for the condition that the sizes of the splicing units are consistent, or the position of the splicing gap is input by a user), and then the compensation quantity is calculated according to brightness analysis.
(d) And generating a two-dimensional image which is consistent with the resolution of the LED display screen to be corrected, wherein each pixel point on the two-dimensional image and the LED lamp point on the LED display screen to be corrected are in one-to-one correspondence, the pixel point value at the position of the non-splicing gap in the generated two-dimensional image is set as 0, and the pixel point at the position of the splicing gap is set as compensation quantity.
(e) The generated two-dimensional image is transmitted to the LED display control system hardware through a video interface such as a DVI channel, so as to achieve the purpose of transmitting compensation quantity (or correction coefficient) at one time.
(f) The LED display control system hardware (such as a sending card therein) analyzes the two-dimensional image, reads out position coordinates and compensation amount corresponding to all non-0 data in the two-dimensional image, and forms a plurality of groups of splicing gap positions (such as represented by LED lamp point positions) and compensation amount data;
(g) the LED display control system (such as a sending card therein) transmits the analyzed multiple groups of splicing gap positions and compensation quantities to a receiving card in the LED display control system, the receiving card respectively applies the compensation quantities at the corresponding splicing gap positions to the corresponding LED lamp points to correct the original correction coefficients, and the correction coefficients at the rest positions are kept unchanged.
It can be understood that, in the foregoing second embodiment, the sending card may also send the two-dimensional image to the receiving card directly without analyzing the two-dimensional image after receiving the two-dimensional image, the receiving card intercepts the two-dimensional image according to the self-loading range to obtain values of image pixel points corresponding to all LED light points in the self-loading range, then reads out the position coordinates and the luminance compensation amount of all the LED light points corresponding to the intercepted part of the non-0 data, and updates the original luminance and chrominance correction coefficients of the LED light points at corresponding positions.
In summary, the foregoing embodiments of the present invention can achieve one or more of the following advantages: (1) the bright and dark lines of the LED display screen can be corrected for the second time without the original database file; and (2) the compensation quantity (namely, the bright and dark line correction coefficient) related to the LED lamp point position is transmitted to the LED display control system hardware at one time in a mode of generating a two-dimensional image, so that the speed is high and the efficiency is high.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A spliced bright and dark line compensation method is suitable for spliced bright and dark line compensation of an LED display screen, and the LED display screen comprises a plurality of splicing units spliced together; the spliced bright and dark line compensation method is characterized by comprising the following steps:
controlling the LED display screen to display images for the image acquisition equipment to shoot so as to obtain images for correction;
processing the image for correction to obtain position coordinates and compensation quantities of a plurality of LED lamp points at the position of the splicing gap needing to be corrected in the LED display screen;
saving the compensation quantity of the plurality of LED lamp points at the position of the splicing gap needing to be corrected as a file in a mode of associating the position coordinates of the LED lamp points; and
and sending the file to LED display control system hardware, so that the LED display control system hardware updates the brightness correction coefficients of the LED lamp points corresponding to the position coordinates in the original brightness correction coefficients of the LED display control system hardware by using the compensation amount in the file without covering the original brightness correction coefficients of the LED lamp points except the LED lamp points corresponding to the position coordinates.
2. The method of claim 1, wherein the updating the luminance and chrominance correction coefficients of the LED lamp points corresponding to the position coordinates in the original luminance and chrominance correction coefficients in the LED display control system hardware using the compensation amount in the file specifically comprises: and multiplying the compensation quantity in the file by a brightness component in an original brightness and chroma correction coefficient of the LED lamp point corresponding to the position coordinate.
3. A spliced bright and dark line compensation method is suitable for spliced bright and dark line compensation of an LED display screen, and the LED display screen comprises a plurality of splicing units spliced together; the spliced bright and dark line compensation method is characterized by comprising the following steps:
controlling the LED display screen to display images for the image acquisition equipment to shoot so as to obtain images for correction;
processing the image for correction to obtain compensation quantity of a plurality of LED lamp points at the position of the splicing gap needing to be corrected in the LED display screen;
generating a two-dimensional image with the resolution consistent with that of the LED display screen so that each image pixel point on the two-dimensional image and the LED lamp points of the LED display screen form a one-to-one corresponding relation, and setting the value of the image pixel points of the plurality of LED lamp points corresponding to the splicing gap position needing to be corrected as the compensation amount and setting the value of the image pixel points of the LED lamp points except the plurality of LED lamp points as 0 in the generated two-dimensional image; and
transmitting the two-dimensional image to LED display control system hardware through a video interface, so that the LED display control system hardware updates the brightness and chrominance correction coefficients corresponding to the LED lamps in the original brightness and chrominance correction coefficients of the LED display control system hardware according to the two-dimensional image without covering the original brightness and chrominance correction coefficients corresponding to the LED lamps except the LED lamps corresponding to the position coordinates;
wherein, the updating of the luminance and chrominance correction coefficients corresponding to the plurality of LED lamp points in the original luminance and chrominance correction coefficients in the LED display control system hardware according to the two-dimensional image specifically includes:
receiving the two-dimensional image by a sending card in the LED display control system hardware, analyzing the two-dimensional image to read out position coordinates and brightness compensation quantity corresponding to all image pixel points with values different from 0 in the two-dimensional image to form a plurality of groups of LED lamp point positions and brightness compensation quantity data, and transmitting the plurality of groups of LED lamp point positions and brightness compensation quantity data to a receiving card in the LED display control system hardware; and
and updating the brightness and chrominance correction coefficients corresponding to the LED lamp points in the original brightness and chrominance correction coefficients in the receiving card by the receiving card according to the positions of the LED lamp points and the luminance compensation quantity data.
4. The method for compensating spliced bright and dark lines as claimed in claim 3, wherein updating the luminance and chrominance correction coefficients corresponding to the plurality of LED lamps in the original luminance and chrominance correction coefficients in the LED display control system hardware according to the two-dimensional image specifically comprises:
and after receiving the two-dimensional image, a receiving card in the LED display control system intercepts the two-dimensional image according to the self loading range to obtain values of image pixel points of all the LED lamp points corresponding to the self loading range, then reads out the position coordinates and the brightness compensation quantity of the LED lamp points corresponding to all the non-0 data of the intercepted part, and updates the original brightness correction coefficients of the LED lamp points at the corresponding positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022874.2A CN106373523B (en) | 2016-11-21 | 2016-11-21 | Spliced bright and dark line compensation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611022874.2A CN106373523B (en) | 2016-11-21 | 2016-11-21 | Spliced bright and dark line compensation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106373523A CN106373523A (en) | 2017-02-01 |
| CN106373523B true CN106373523B (en) | 2020-06-23 |
Family
ID=57892683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611022874.2A Active CN106373523B (en) | 2016-11-21 | 2016-11-21 | Spliced bright and dark line compensation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106373523B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742511B (en) * | 2017-11-08 | 2019-10-15 | 颜色空间(北京)科技有限公司 | The method and display methods that module mesopic vision gap is eliminated after display screen splicing |
| CN107945768A (en) * | 2017-11-15 | 2018-04-20 | 威创集团股份有限公司 | Screen color part quick calibration method, device and system |
| CN108648688A (en) * | 2018-05-17 | 2018-10-12 | 深圳市灵星雨科技开发有限公司 | A kind of box body splicing optimization method of LED display |
| CN112150965B (en) * | 2019-06-27 | 2022-03-22 | 西安诺瓦星云科技股份有限公司 | Spliced bright and dark line correction method and spliced bright and dark line correction system |
| CN110580874B (en) * | 2019-08-14 | 2021-02-26 | 武汉华星光电技术有限公司 | Display panel driving method and display device |
| CN111340735B (en) * | 2020-03-04 | 2021-04-23 | 卡莱特云科技股份有限公司 | LED screen body correction method, device and terminal |
| CN113012615A (en) * | 2020-09-09 | 2021-06-22 | 重庆康佳光电技术研究院有限公司 | Display screen compensation method and device, computer readable storage medium and electronic equipment |
| CN112102773B (en) * | 2020-09-22 | 2022-02-01 | 深圳市奥拓电子股份有限公司 | Method, device and system for adjusting splicing bright and dark lines of LED display screen |
| CN112201199B (en) * | 2020-10-22 | 2022-04-01 | 季华实验室 | LED splicing gap bright and dark line correction method and device, storage medium and terminal |
| CN114639335A (en) * | 2020-12-16 | 2022-06-17 | 深圳市奥拓电子股份有限公司 | Method and system for adjusting bright and dark lines of display screen of smart phone |
| CN114005404B (en) * | 2021-12-29 | 2022-03-18 | 卡莱特云科技股份有限公司 | Segmented correction method and device for processing seam repair hidden line and computer equipment |
| CN114241983A (en) * | 2021-12-31 | 2022-03-25 | 季华实验室 | Folding screen display uniformity compensation method and device, electronic equipment and storage medium |
| CN114267267B (en) * | 2022-03-01 | 2022-05-06 | 卡莱特云科技股份有限公司 | Bright and dark seam repairing method, device and system for virtual pixel LED display screen |
| CN115831043B (en) * | 2023-02-14 | 2023-05-12 | 长春希达电子技术有限公司 | Device and method for correcting bright and dark lines of virtual pixel display screen |
| CN116312269B (en) * | 2023-02-15 | 2023-09-15 | 深圳壹视光电有限公司 | LED display module and image compensation method |
| CN116386521A (en) * | 2023-05-31 | 2023-07-04 | 深圳市奥拓电子股份有限公司 | Four-color display bright and dark line correction method and device and electronic equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160006A (en) * | 2007-11-23 | 2008-04-09 | 京东方科技集团股份有限公司 | LED backlight source color management system and method |
| CN104778920B (en) * | 2015-04-21 | 2017-06-16 | 西安诺瓦电子科技有限公司 | The bright concealed wire compensation method of splicing of LED display |
| CN104992670B (en) * | 2015-07-07 | 2018-04-06 | 西安诺瓦电子科技有限公司 | Splice bright concealed wire compensation method |
| CN104992669A (en) * | 2015-07-07 | 2015-10-21 | 西安诺瓦电子科技有限公司 | Splicing bright and dark line compensation method and device |
| CN105118475B (en) * | 2015-09-02 | 2017-10-17 | 西安诺瓦电子科技有限公司 | The brightness of LED display or bright chroma adjusting method |
| CN105321467B (en) * | 2015-11-12 | 2018-11-30 | 西安诺瓦电子科技有限公司 | LED display control system receives card and splices bright concealed wire modification method |
-
2016
- 2016-11-21 CN CN201611022874.2A patent/CN106373523B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106373523A (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106373523B (en) | Spliced bright and dark line compensation method | |
| CN108492776B (en) | Intelligent external optical compensation method for AMOLED screen brightness unevenness | |
| CN105405413B (en) | A kind of white balance realization method and system of adjust automatically LCD splicings | |
| CN105185314B (en) | LED display uniformity compensation method | |
| KR101165026B1 (en) | Image correction data generation system, image correction data generation method, image correction data generation program, and image correction circuit | |
| CN101692326B (en) | System and method for on-site point-by-point calibration of brightness and chrominance of the whole screen of LED display screen | |
| CN102026003B (en) | Method for correcting colors of multi-screen splicing wall | |
| CN105551431B (en) | LED display module uniformity correcting method | |
| CN102034407B (en) | Light-emitting diode screen color and brightness adjustment method and system | |
| US8610781B2 (en) | System and method for light compensation in a video panel display | |
| US20160033795A1 (en) | Testing device, method thereof, display device and display method thereof | |
| CN104091566B (en) | Display screen bright chroma control method, LED display control method and system | |
| CN101916539A (en) | System and method for correcting brightness and chromaticity of LED display screen point by point | |
| CN105702218A (en) | Display apparatus, method of driving the same and vision inspection apparatus for the same | |
| CN101621699B (en) | Method for correcting uneven video display and projecting device | |
| KR102425404B1 (en) | Display device and luminance correction method of the same | |
| CN105103541A (en) | Pattern position detection method, pattern position detection system, and image quality adjustment technique using pattern position detection method and pattern position detection system | |
| CN104778920A (en) | Splicing bright and dark line compensating method of LED display screen | |
| US20180033361A1 (en) | Method and system for calibrating a display screen | |
| CN114495803A (en) | Mura repairing method of display panel | |
| CN111640391A (en) | Display screen display adjusting method and system | |
| CN110910849A (en) | Color correction compensation method and system for liquid crystal display screen and driving board | |
| US20110267365A1 (en) | Methods and systems for correcting the appearance of images displayed on an electronic visual display | |
| CN106331665A (en) | Projection image adjustment method and projector | |
| CN112071257B (en) | LED screen correction method and device, storage medium and LED screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 710075 DEF101, Zengyi Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Applicant after: XI'AN NOVASTAR TECH Co.,Ltd. Address before: High tech Zone technology two road 710075 Shaanxi city of Xi'an Province, No. 68 Xi'an Software Park D District 401 Applicant before: Xi'an NovaStar Tech Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |