CN113066430A - Time schedule controller and display system - Google Patents
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- CN113066430A CN113066430A CN202110303169.4A CN202110303169A CN113066430A CN 113066430 A CN113066430 A CN 113066430A CN 202110303169 A CN202110303169 A CN 202110303169A CN 113066430 A CN113066430 A CN 113066430A
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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]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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Abstract
The application provides a time schedule controller and display system, this time schedule controller includes: the buffer module is used for receiving and buffering frame data; the frame detection module is in communication connection with the buffer module and is used for determining whether the current picture is a static picture according to the frame data; and the output module is respectively in communication connection with the buffer module and the frame detection module, and is used for entering a corresponding refresh mode according to the determination result, wherein the refresh mode comprises a first refresh rate mode and a second refresh rate mode, the refresh mode is the first refresh rate mode under the condition that the determination result represents that the current picture is the static picture, the refresh mode is the second refresh rate mode under the condition that the determination result represents that the current picture is not the static picture, and the refresh rate of the first refresh rate mode is lower than that of the second refresh rate mode. The time schedule controller solves the problem that the display card at the low end and the display equipment of the CPU can not realize the screen self-refreshing function in the prior art.
Description
Technical Field
The application relates to the technical field of display, in particular to a time schedule controller and a display system.
Background
The screen self-refresh function (PSR) is a feature added from edp1.4a, and the purpose thereof is to reduce power consumption of the entire system by stopping the graphics card or CPU from outputting data in the case of a still picture.
The basic flow of the eDP PSR is to completely depend on the graphics card or CPU to implement the PSR function, that is, the graphics card or CPU used must be able to support the standard of edpa 1.3 or more to be able to support the PSR. In the current market, the display card or CPU belongs to a high-end product.
The above information disclosed in this background section is only for enhancement of understanding of the background of the technology described herein and, therefore, certain information may be included in the background that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
Disclosure of Invention
The main purpose of the present application is to provide a time schedule controller and a display system, so as to solve the problem that the display device of the low-end display card and the CPU in the prior art cannot realize the screen self-refresh function.
According to an aspect of an embodiment of the present invention, there is provided a timing controller including: the buffer module is used for receiving and buffering frame data; the frame detection module is in communication connection with the buffer module and is used for determining whether the current picture is a static picture according to the frame data; and the output module is in communication connection with the buffer module and the frame detection module respectively, and is used for entering a corresponding refresh mode according to a determination result, wherein the refresh mode comprises a first refresh rate mode and a second refresh rate mode, the refresh mode is the first refresh rate mode when the determination result indicates that the current picture is a static picture, the refresh mode is the second refresh rate mode when the determination result indicates that the current picture is not a static picture, and the refresh rate of the first refresh rate mode is lower than that of the second refresh rate mode.
Optionally, the frame detection module includes: the comparison module is used for comparing the currently received frame data with the frame data of the previous frame to obtain a comparison result; and the determining module is used for determining whether the current picture is a static picture according to the comparison result.
Optionally, the determining module includes: a first determining submodule for determining that a current picture is a static picture in a case where the currently received frame data is the same as a previous frame data; and the second determining submodule determines that the current picture is not a static picture under the condition that the currently received frame data is different from the previous frame data.
Optionally, the frame detection module further includes: the first control module is used for controlling the output module to enter the first refresh rate mode under the condition that the current picture is a static picture; and the second control module is used for controlling the output module to enter the second refresh rate mode under the condition that the current picture is not a static picture.
Optionally, the ratio of the refresh rate of the first refresh rate mode to the refresh rate of the second refresh rate mode is 1/3-1/2.
Optionally, the timing controller further includes a receiving module, the receiving module is connected to the buffering module in a communication manner, and the receiving module is configured to receive the frame data and send the frame data to the buffering module.
According to another aspect of the embodiments of the present invention, there is also provided a display system, including a timing controller and a display screen communicatively connected to the timing controller, where the timing controller is any one of the timing controllers, and the display screen is configured to display frame data.
Optionally, the display system further includes a data processor, communicatively connected to the timing controller, and configured to process image data to be displayed, obtain frame data, and send the frame data to the timing controller.
Optionally, the data processor is a central processing unit or a display card.
Optionally, the display screen is an LCD or an LED.
In the embodiment of the present invention, in the timing controller, the buffer module is configured to receive and buffer frame data; the frame detection module is in communication connection with the buffer module and is used for determining whether the current picture is a static picture according to the frame data; the output module is respectively in communication connection with the buffer module and the frame detection module, and is configured to enter a corresponding refresh mode according to a determination result, where the refresh mode includes a first refresh rate mode and a second refresh rate mode, where the refresh mode is the first refresh rate mode when the determination result indicates that the current picture is a static picture, and the refresh mode is the second refresh rate mode when the determination result indicates that the current picture is not a static picture, and a refresh rate of the first refresh rate mode is lower than a refresh rate of the second refresh rate mode. The time schedule controller determines whether the current picture is a static picture or not through the frame detection module, and enters a corresponding refresh mode according to a determination result, namely the current picture is the static picture, the current picture enters a first refresh rate mode, the current picture is not the static picture, the current picture enters a second refresh rate mode, the refresh rate of the first refresh rate mode is lower than that of the second refresh rate mode, so that the screen refresh rate is reduced when the current picture is the static picture, and the power consumption of a corresponding display screen is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
FIG. 1 shows a schematic diagram of a display system according to an embodiment of the present application.
Wherein the figures include the following reference numerals:
10. a time schedule controller; 11. a buffer module; 12. a frame detection module; 13. an output module; 14. a receiving module; 20. a display screen; 30. a data processor.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As mentioned in the background art, the display device of the low-end display card and the CPU in the prior art cannot implement the screen self-refresh function, and in order to solve the above problems, in an exemplary embodiment of the present application, a timing controller and a display system are provided.
According to an embodiment of the present application, there is provided a timing controller, as shown in fig. 1, including:
the buffer module 11 is configured to receive and buffer frame data;
a frame detection module 12, communicatively connected to the buffer module 11, where the frame detection module 12 is configured to determine whether a current frame is a static frame according to the frame data;
an output module 13, communicatively connected to the buffer module 11 and the frame detection module 12, respectively, where the output module 13 is configured to enter a corresponding refresh mode according to a determination result, where the refresh mode includes a first refresh rate mode and a second refresh rate mode, where the refresh mode is the first refresh rate mode when the determination result indicates that the current picture is a static picture, and the refresh mode is the second refresh rate mode when the determination result indicates that the current picture is not a static picture, and a refresh rate of the first refresh rate mode is lower than a refresh rate of the second refresh rate mode.
In the time sequence controller, the buffer module is used for receiving and buffering frame data; the frame detection module is in communication connection with the buffer module and is used for determining whether the current picture is a static picture according to the frame data; the output module is respectively in communication connection with the buffer module and the frame detection module, and is configured to enter a corresponding refresh mode according to a determination result, where the refresh mode includes a first refresh rate mode and a second refresh rate mode, where the refresh mode is the first refresh rate mode when the determination result indicates that the current picture is a static picture, and the refresh mode is the second refresh rate mode when the determination result indicates that the current picture is not a static picture, and a refresh rate of the first refresh rate mode is lower than a refresh rate of the second refresh rate mode. The time schedule controller determines whether the current picture is a static picture or not through the frame detection module, and enters a corresponding refresh mode according to a determination result, namely the current picture is the static picture, the current picture enters a first refresh rate mode, the current picture is not the static picture, the current picture enters a second refresh rate mode, the refresh rate of the first refresh rate mode is lower than that of the second refresh rate mode, so that the screen refresh rate is reduced when the current picture is the static picture, and the power consumption of a corresponding display screen is reduced.
In an embodiment of the present application, the frame detection module includes a comparison module and a determination module, where the comparison module is configured to compare the currently received frame data with the frame data of a previous frame to obtain a comparison result; the determining module is used for determining whether the current picture is a static picture according to the comparison result. Specifically, the frame detection module can determine whether the current picture is a static picture by comparing the frame data of the front frame with the frame data of the rear frame, the detection is simple, the efficiency is high, and the picture is prevented from being blocked.
In an embodiment of the present application, the determining module includes a first determining submodule and a second determining submodule, where the first determining submodule determines that a current picture is a static picture when the currently received frame data is the same as a previous frame data; the second determining submodule determines that the current picture is not a still picture in a case where the currently received frame data is not identical to the previous frame data. Specifically, if the currently received frame data is the same as the previous frame data, it may be determined that the current picture is a static picture, and otherwise, the current picture is a dynamic picture.
In an embodiment of the application, the frame detection module further includes a first control module and a second control module, where the first control module is configured to control the output module to enter the first refresh rate mode when a current picture is a static picture; the second control module is used for controlling the output module to enter the second refresh rate mode under the condition that the current picture is not a static picture. Specifically, the current picture is a static picture, a first refresh rate mode is entered, the current picture is not a static picture, i.e., a dynamic picture, a second refresh rate mode is entered, and a corresponding refresh mode is entered according to whether the current picture is a static picture, so that the refresh rate is adjusted, and energy consumption is saved.
In an embodiment of the present application, a ratio of the refresh rate of the first refresh rate mode to the refresh rate of the second refresh rate mode is 1/3-1/2. Specifically, the ratio of the refresh rate of the first refresh rate mode to the refresh rate of the second refresh rate mode is set within the value range, so that the power consumption is reduced and a good display effect is maintained.
In an embodiment of the present application, as shown in fig. 1, the timing controller 10 further includes a receiving module 14, the receiving module 14 is communicatively connected to the buffering module 11, and the receiving module 14 is configured to receive the frame data and send the frame data to the buffering module 11. Specifically, the receiving module receives frame data output by the display card or the CPU and sends the frame data to the buffering module, so that the efficiency and the security of data transmission are improved.
The embodiment of the present application further provides a display system, as shown in fig. 1, the display system includes a timing controller 10 and a display screen 20 communicatively connected to the timing controller, where the timing controller is any one of the timing controllers, and the display screen 20 is configured to display frame data.
The display system comprises a time schedule controller and a display screen, wherein a buffer module is used for receiving and buffering frame data; the frame detection module is in communication connection with the buffer module and is used for determining whether the current picture is a static picture according to the frame data; the output module is respectively in communication connection with the buffer module and the frame detection module, and is configured to enter a corresponding refresh mode according to a determination result, where the refresh mode includes a first refresh rate mode and a second refresh rate mode, where the refresh mode is the first refresh rate mode when the determination result indicates that the current picture is a static picture, and the refresh mode is the second refresh rate mode when the determination result indicates that the current picture is not a static picture, and a refresh rate of the first refresh rate mode is lower than a refresh rate of the second refresh rate mode. The display system determines whether the current picture is a static picture or not through the frame detection module, and enters a corresponding refresh mode according to a determination result, namely the current picture is the static picture, the display system enters a first refresh rate mode, the current picture is not the static picture, the display system enters a second refresh rate mode, the refresh rate of the first refresh rate mode is lower than that of the second refresh rate mode, so that the screen refresh rate is reduced when the current picture is the static picture, and the power consumption of a corresponding display screen is reduced.
In an embodiment of the present application, as shown in fig. 1, the display system further includes a data processor 30, communicatively connected to the timing controller 10, for processing image data to be displayed, obtaining frame data, and sending the frame data to the timing controller 10. Specifically, the frame data received by the timing controller is obtained by processing the image data to be displayed by the data processor, and the data processor may not have a PSR function.
In an embodiment of the application, the data processor is a central processing unit or a display card. Specifically, the data processor may also be an SoC chip integrated with a central processing unit or a display card.
In an embodiment of the present application, the display screen is an LCD or an LED. Specifically, those skilled in the art can select a suitable display screen according to actual situations.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
1) in the time sequence controller, the buffer module is used for receiving and buffering frame data; the frame detection module is in communication connection with the buffer module and is used for determining whether the current picture is a static picture according to the frame data; the output module is respectively in communication connection with the buffer module and the frame detection module, and is configured to enter a corresponding refresh mode according to a determination result, where the refresh mode includes a first refresh rate mode and a second refresh rate mode, where the refresh mode is the first refresh rate mode when the determination result indicates that the current picture is a static picture, and the refresh mode is the second refresh rate mode when the determination result indicates that the current picture is not a static picture, and a refresh rate of the first refresh rate mode is lower than a refresh rate of the second refresh rate mode. The time schedule controller determines whether the current picture is a static picture or not through the frame detection module, and enters a corresponding refresh mode according to a determination result, namely the current picture is the static picture, the current picture enters a first refresh rate mode, the current picture is not the static picture, the current picture enters a second refresh rate mode, the refresh rate of the first refresh rate mode is lower than that of the second refresh rate mode, so that the screen refresh rate is reduced when the current picture is the static picture, and the power consumption of a corresponding display screen is reduced.
2) The display system comprises a time schedule controller and a display screen, wherein a buffer module is used for receiving and buffering frame data; the frame detection module is in communication connection with the buffer module and is used for determining whether the current picture is a static picture according to the frame data; the output module is respectively in communication connection with the buffer module and the frame detection module, and is configured to enter a corresponding refresh mode according to a determination result, where the refresh mode includes a first refresh rate mode and a second refresh rate mode, where the refresh mode is the first refresh rate mode when the determination result indicates that the current picture is a static picture, and the refresh mode is the second refresh rate mode when the determination result indicates that the current picture is not a static picture, and a refresh rate of the first refresh rate mode is lower than a refresh rate of the second refresh rate mode. The display system determines whether the current picture is a static picture or not through the frame detection module, and enters a corresponding refresh mode according to a determination result, namely the current picture is the static picture, the display system enters a first refresh rate mode, the current picture is not the static picture, the display system enters a second refresh rate mode, the refresh rate of the first refresh rate mode is lower than that of the second refresh rate mode, so that the screen refresh rate is reduced when the current picture is the static picture, and the power consumption of a corresponding display screen is reduced.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A timing controller, comprising:
the buffer module is used for receiving and buffering frame data;
the frame detection module is in communication connection with the buffer module and is used for determining whether the current picture is a static picture according to the frame data;
and the output module is in communication connection with the buffer module and the frame detection module respectively, and is used for entering a corresponding refresh mode according to a determination result, wherein the refresh mode comprises a first refresh rate mode and a second refresh rate mode, the refresh mode is the first refresh rate mode when the determination result indicates that the current picture is a static picture, the refresh mode is the second refresh rate mode when the determination result indicates that the current picture is not a static picture, and the refresh rate of the first refresh rate mode is lower than that of the second refresh rate mode.
2. The timing controller of claim 1, wherein the frame detection module comprises:
the comparison module is used for comparing the currently received frame data with the frame data of the previous frame to obtain a comparison result;
and the determining module is used for determining whether the current picture is a static picture according to the comparison result.
3. The timing controller of claim 2, wherein the determining module comprises:
a first determining submodule for determining that a current picture is a static picture in a case where the currently received frame data is the same as a previous frame data;
and the second determining submodule determines that the current picture is not a static picture under the condition that the currently received frame data is different from the previous frame data.
4. The timing controller of claim 3, wherein the frame detection module further comprises:
the first control module is used for controlling the output module to enter the first refresh rate mode under the condition that the current picture is a static picture;
and the second control module is used for controlling the output module to enter the second refresh rate mode under the condition that the current picture is not a static picture.
5. The timing controller of claim 1, wherein a ratio of the refresh rate of the first refresh rate mode to the refresh rate of the second refresh rate mode is 1/3-1/2.
6. The timing controller of claim 1, further comprising a receiving module communicatively coupled to the buffering module, the receiving module configured to receive the frame data and send the frame data to the buffering module.
7. A display system comprising a timing controller and a display screen communicatively connected to the timing controller, wherein the timing controller is the timing controller of any one of claims 1 to 6, and the display screen is configured to display frame data.
8. The display system of claim 7, further comprising a data processor, communicatively coupled to the timing controller, for processing image data to be displayed, obtaining frame data and sending the frame data to the timing controller.
9. The display system of claim 8, wherein the data processor is a central processor or a graphics card.
10. The display system of claim 7, wherein the display screen is an LCD or an LED.
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| CN107799053A (en) * | 2017-11-13 | 2018-03-13 | 合肥京东方光电科技有限公司 | Control method and apparatus, time schedule controller, the display device of refreshing frequency |
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| US20210035488A1 (en) * | 2019-07-29 | 2021-02-04 | Samsung Display Co., Ltd. | Display device and driving method thereof |
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