CN112309311B - Display control method, device, display control card and computer readable medium - Google Patents
Display control method, device, display control card and computer readable medium Download PDFInfo
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- 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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Abstract
The present invention relates to a display control method, a display control device, a display control card and a computer readable medium. The display control method includes, for example: restoring an input field synchronization signal from a video signal; obtaining an output field synchronizing signal according to the input field synchronizing signal for display control; obtaining accumulated error information according to the input field synchronizing signal and the output field synchronizing signal; responding to the synchronous control signal, and adjusting the period of the output field synchronous signal according to the accumulated error information to obtain the adjusted output field synchronous signal for display control. The embodiment of the invention can solve the problem of black lines generated in the display of the display screen.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display control method, a display control device, a display control card, and a computer readable medium.
Background
In current various types of LED display control systems, LED lamp panels are various, and chip and PCB processes are various, so that configuration parameters need to be optimized after the LED lamp panels are configured by the same system, the configuration parameters are different every time, and finally, the display effect is different, and black lines are generated under the condition. The existing LED display control systems have high refresh rate, and the phenomenon of black lines cannot be identified by naked eyes of people, but images obtained by a professional camera or a mobile phone with short shutter time can display the black lines, and the black lines are more serious along with the higher sampling rate of the camera. In large-scale concert or TV station record application occasions such as program, the phenomenon of black line often can appear in the display screen of shooing or video recording with the cell-phone, and the effect of showing black line is light and heavy, can't control completely, can lead to shooing or video recording effect to discount greatly like this, reduce user experience.
Disclosure of Invention
Therefore, embodiments of the present invention provide a display control method, a display control apparatus, a display control card and a computer readable medium to solve the deficiencies in the prior art.
Specifically, in a first aspect, a display control method provided in an embodiment of the present invention includes: restoring an input field synchronization signal from a video signal; obtaining an output field synchronizing signal according to the input field synchronizing signal for display control; obtaining accumulated error information according to the input field synchronizing signal and the output field synchronizing signal; responding to the synchronous control signal, and adjusting the period of the output field synchronous signal according to the accumulated error information to obtain the adjusted output field synchronous signal for display control.
In the prior art, a black line phenomenon often occurs when a display screen displays images, and the black line phenomenon cannot be recognized by naked eyes of people, but the black line can be displayed in images obtained by a professional camera or a mobile phone with a short shutter time, and the black line is more serious along with the higher sampling rate of the camera, so that the photographing or video recording effect is greatly reduced, and the user experience is reduced. According to the display control method provided by the embodiment of the invention, the output field synchronizing signal is adjusted according to the accumulated error information obtained according to the output field synchronizing signal and the input field synchronizing signal, so that the problem that black lines are generated in the display of the display screen is solved, the display effect of the display screen is improved, and the user experience is improved.
In an embodiment of the present invention, the obtaining accumulated error information according to the input field sync signal and the output field sync signal includes: calculating the error between the output field synchronous signal and the input field synchronous signal corresponding to each frame in a preset frame number to obtain error information; and accumulating the error information to obtain the accumulated error information.
In an embodiment of the present invention, the adjusting the period of the output field synchronous signal according to the accumulated error information to obtain an adjusted output field synchronous signal for display control includes: and reducing the blanking time of the output field synchronous signal corresponding to the appointed frame according to the accumulated error information to obtain the adjusted output field synchronous signal.
In an embodiment of the present invention, before adjusting the period of the output field sync signal according to the accumulated error information to obtain an adjusted output field sync signal for display control in response to the sync control signal, the method further includes: and sending the synchronous control signal every other preset frame number.
In a second aspect, an embodiment of the present invention provides a display control apparatus, including: the signal recovery module is used for recovering the input field synchronous signal from the video signal; the signal acquisition module is used for acquiring an output field synchronizing signal according to the input field synchronizing signal so as to be used for display control; the accumulated error module is used for obtaining accumulated error information according to the input field synchronizing signal and the output field synchronizing signal; and the signal response module is used for responding to the synchronous control signal and adjusting the period of the output field synchronous signal according to the accumulated error information to obtain the adjusted output field synchronous signal for display control.
In the prior art, a black line phenomenon often occurs when a display screen displays images, and the black line phenomenon cannot be recognized by naked eyes of people, but the black line can be displayed in images obtained by a professional camera or a mobile phone with a short shutter time, and the black line is more serious along with the higher sampling rate of the camera, so that the photographing or video recording effect is greatly reduced, and the user experience is reduced. The display control device provided by the embodiment of the invention adjusts the output field synchronous signal according to the accumulated error information obtained according to the output field synchronous signal and the input field synchronous signal, so that the problem of black lines generated in the display of the display screen is solved, the display effect of the display screen is improved, and the user experience is improved.
In an embodiment of the present invention, the accumulated error module is specifically configured to: calculating the error between the output field synchronous signal and the input field synchronous signal corresponding to each frame in a preset frame number to obtain error information; and accumulating the error information to obtain the accumulated error information.
In an embodiment of the present invention, the display control apparatus further includes: and the signal sending module is used for sending the synchronous control signal every other preset frame number.
In one embodiment of the present invention, the signal recovery module, the signal acquisition module, the accumulated error module, and the signal response module are integrated in a programmable logic device.
In a third aspect, an embodiment of the present invention provides a display control card, including a programmable logic device, where the programmable logic device is configured to implement the display control method according to any one of the foregoing aspects.
In a fourth aspect, an embodiment of the present invention provides a computer-readable medium, in which computer-readable instructions are stored, the computer-readable instructions including instructions for executing the display control method according to any one of the foregoing descriptions.
As can be seen from the above, the embodiments of the present invention can achieve one or more of the following advantages: the output field synchronizing signal is adjusted according to the accumulated error information obtained by the output field synchronizing signal and the input field synchronizing signal, so that the problem that a display screen generates a black line is solved, the display effect of the display screen is improved, the user experience is improved, and the cost is saved for a user under the condition of not adding hardware.
Other aspects and features of the present invention will become apparent from the following detailed description, which proceeds with reference to the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flowchart of a display control method according to a first embodiment of the invention;
fig. 2 is an FPGA architecture diagram according to a specific implementation of a display control method according to a first embodiment of the present invention;
fig. 3 is a schematic signal waveform diagram according to a specific implementation of a display control method according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display control apparatus according to a second embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a display control card according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of a computer-readable medium according to a fourth embodiment of the present invention.
[ description of reference ]
S11-S17: displaying a control method;
20: a display control device; 21: a signal recovery module; 23: a signal acquisition module; 25: an accumulated error module; 27: a signal response module;
30: displaying a control card; 31: an editable logic device;
40: a computer readable medium.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other in the present document without conflict. The invention will be described in connection with embodiments with reference to the drawings.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the present embodiment will be clearly and completely described below with reference to the drawings in the present embodiment, and it is obvious that the described embodiment is only a part of the embodiments of the present invention, and 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 invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention 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 is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are capable of operation in sequences other than those illustrated or described herein. 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 should be noted that the division of the embodiments of the present invention is only for convenience of description and should not be construed as a limitation, and features of various embodiments may be combined and referred to each other without contradiction.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, a first embodiment of the present invention proposes a display control method. As shown in fig. 1, the display control method includes, for example, steps S11 to S17.
Step S11: restoring an input field synchronization signal from a video signal;
step S13: obtaining an output field synchronizing signal according to the input field synchronizing signal for display control;
step S15: obtaining accumulated error information according to the input field synchronizing signal and the output field synchronizing signal;
step S17: responding to the synchronous control signal, and adjusting the period of the output field synchronous signal according to the accumulated error information to obtain the adjusted output field synchronous signal for display control.
Specifically, the video signal mentioned in step S11 is, for example, an incoming video signal transmitted via a network cable. The video signal is, for example, the VESA standard. The video signal includes, for example, video data and a field sync signal.
The output field sync signal referred to in step S13 is the actually output field sync signal. In actual output display, synchronization is not performed strictly according to the recovered input field synchronous signal, and there is usually a certain delay, i.e. the period of the input field synchronous signal is, for example, smaller than that of the output field synchronous signal. It should be noted that, for example, in step S13, an output field sync signal of the current frame is obtained for display control of the current frame.
Step S15 includes, for example, calculating an error between the output field sync signal and the input field sync signal corresponding to each frame within a preset number of frames to obtain error information; and accumulating the error information to obtain the accumulated error information. It is understood that the accumulated error information is accumulated from error information of at least one frame, the mentioned error information is, for example, a time difference of the same frame period, and the mentioned preset number of frames can be set according to the actual needs of the user. For example, if the predetermined number of frames is three, the accumulated error information is accumulated from the error information of each frame in the first two frames.
Step S17 includes, for example, reducing the blanking time of the output field sync signal corresponding to the specified frame according to the accumulated error information to obtain the adjusted output field sync signal. The specified frame mentioned is, for example, a frame corresponding to a preset number of frames. Specifically, when the preset frame number is 3 frames, the frame is designated as the third frame.
Further, the display control method provided in this embodiment further includes, before step S17, for example, sending the synchronization control signal every preset number of frames.
For better understanding of the present embodiment, a detailed description is given below of a display control method provided by an embodiment of the present invention with reference to fig. 2 and 3.
The display control method provided by the embodiment is implemented in a receiving card of an LED display screen control system, for example. In particular, in the FPGA of the receiving card.
As shown in fig. 2, it is a schematic diagram of an internal structure of the display control method for implementing the present embodiment for the FPGA. It should be noted that, the module division inside the FPGA is only for better illustration, and the embodiment is not limited thereto.
The field synchronization module may recover a field synchronization signal, i.e., a corresponding input field synchronization signal, according to a video signal transmitted by a transmission medium, e.g., a network cable, and send the input field synchronization signal to the parameter execution module. Meanwhile, the parameter detection module can also actively acquire the input field synchronous signal obtained in the field synchronous module. The input field sync signal is used to inform other modules that the image information of a new frame needs to be updated and displayed currently.
Because the display parameters corresponding to different specifications of the LED lamp panel are not consistent, the parameter execution module can normally operate and drive to light the LED display screen according to default parameters which are issued by software and are adapted to the LED lamp panel, and in the process, the parameter execution module can also obtain output field synchronization signals, namely actually executed synchronization signals, according to the received input field synchronization signals.
The parameter detection module can obtain accumulated error information according to the synchronous signals actually executed by the parameter execution module, namely the output field synchronous signals and the input field synchronous signals. Specifically, the parameter detection module counts errors between output field synchronous signals and input field synchronous signals corresponding to each frame in preset frame numbers, and accumulates error information until the preset frame numbers. Meanwhile, the parameter detection module can send a synchronous control signal to the parameter execution module every other preset frame number, and simultaneously send accumulated error information to the parameter execution module. The parameter execution module responds to the synchronous control signal and adjusts the period of the output field synchronous signal according to the accumulated error information to avoid error accumulation. It should be noted here that the synchronization control signal may also be sent out by the field synchronization module, for example.
For example, the preset frame number is set to three frames, and the corresponding signal waveform diagram is shown in fig. 3. The input field synchronizing signal is a field synchronizing signal recovered by a field synchronizing module in the FPGA, and the low level represents the synchronizing time of the image in synchronization. The synchronization control signal is, for example, a synchronization command issued by the field synchronization module to other modules requiring synchronization. The output field synchronous signal shows the condition that the FPGA actually outputs the field synchronous signal to the outside. It can be seen that the FPGA is not strictly synchronized according to the recovered field synchronization signal, but has a certain delay. As shown in fig. 3, the parameter detection module obtains corresponding error information according to the output field sync signal and the input field sync signal corresponding to the first frame and the second frame, and in the third frame, the parameter detection module sends out a synchronization control signal, and the parameter execution module responds to the synchronization control signal to perform an error reduction operation on the output field sync signal corresponding to the third frame, i.e., the designated frame, so as to actually reduce the delay. Specifically, the blanking time in the output field synchronous signal period corresponding to the third frame is reduced according to the error information of the first two frames so as to reduce the error, and the error of the output field synchronous signal and the input field synchronous signal of the fourth frame is reduced.
In summary, in the display control method provided in this embodiment, the output field sync signal is adjusted according to the accumulated error information obtained from the output field sync signal and the input field sync signal, so as to solve the problem of black lines generated in the display of the display screen, improve the display effect of the display screen, improve the user experience, and save the cost for the user without adding hardware.
[ second embodiment ]
As shown in fig. 4, a display control apparatus 20 according to a second embodiment of the present invention is provided. As shown in fig. 4, the display control apparatus 20 includes, for example, a signal recovery block 21, a signal acquisition block 23, an accumulated error block 25, and a signal response block 27.
The signal recovery module 21 is configured to recover the input field sync signal from the video signal. The signal obtaining module 23 is configured to obtain an output field sync signal according to the input field sync signal for display control. The accumulated error module 25 is configured to obtain accumulated error information according to the input field synchronization signal and the output field synchronization signal. The signal response module 27 is configured to respond to the synchronization control signal, and adjust the period of the output field synchronization signal according to the accumulated error information, so as to obtain an adjusted output field synchronization signal for display control.
Further, the accumulated error module 25 is specifically configured to: calculating the error between the output field synchronous signal and the input field synchronous signal corresponding to each frame in a preset frame number to obtain error information; and accumulating the error information to obtain the accumulated error information. The display control device 20 further includes, for example, a signal issuing module (not shown in the figure). And the signal sending module is used for sending the synchronous control signal every other preset frame number.
Further, the signal recovery block 21, the signal acquisition block 23, the accumulated error block 25, and the signal response block 27 mentioned in the present embodiment are integrated in a programmable logic device, for example.
The display control method implemented by the display control apparatus 20 of the present embodiment is as described in the first embodiment, and therefore, will not be described in detail here. Optionally, each module and the other operations or functions in the second embodiment are respectively for implementing the method in the first embodiment of the present invention, and are not described herein for brevity.
In summary, the display control apparatus provided in this embodiment adjusts the output field sync signal according to the accumulated error information obtained from the output field sync signal and the input field sync signal, so as to solve the problem of black lines generated in the display of the display screen, improve the display effect of the display screen, improve the user experience, and save the cost for the user without adding hardware.
[ third embodiment ]
As shown in fig. 5, a third embodiment of the present invention provides a display control card 30, which includes an editable logic device 31. The programmable logic device 31 is used to implement the display control method as described in the first embodiment. By way of example, programmable logic device 31 is used to:
(i) restoring an input field synchronization signal from a video signal;
(ii) obtaining an output field synchronizing signal according to the input field synchronizing signal for display control;
(iii) obtaining accumulated error information according to the input field synchronizing signal and the output field synchronizing signal;
(iv) responding to the synchronous control signal, and adjusting the period of the output field synchronous signal according to the accumulated error information to obtain the adjusted output field synchronous signal for display control.
Further, the display control card 30 proposed in the present embodiment is, for example, a receiving card in an LED display screen control system. Display control card 30 typically also includes: microcontroller and memory, etc. The Microcontroller is, for example, an MCU (Microcontroller Unit). The memory is, for example, a dynamic random access memory or a flash memory.
The editable logic device 31 is, for example, an FPGA (Field Programmable Gate Array), which is used to implement the display control method according to the first embodiment, and reference may be made to the description of the display control method adopted by the specific editable logic device in the first embodiment. This embodiment will not be described repeatedly.
In summary, the display control card provided in this embodiment adjusts the output field synchronous signal according to the accumulated error information obtained from the output field synchronous signal and the input field synchronous signal, so as to solve the problem that the display screen displays black lines, improve the display effect of the display screen, improve the user experience, and save the cost for the user without adding hardware.
[ fourth example ] A
Referring to fig. 6, a fourth embodiment of the present invention proposes a computer-readable medium, and the computer-readable medium 40 stores computer-readable instructions including, for example, instructions for executing the display control method according to the first embodiment. For example, the computer readable instructions execute the following instructions:
(i) restoring an input field synchronization signal from a video signal;
(ii) obtaining an output field synchronizing signal according to the input field synchronizing signal for display control;
(iii) obtaining accumulated error information according to the input field synchronizing signal and the output field synchronizing signal;
(iv) responding to the synchronous control signal, and adjusting the period of the output field synchronous signal according to the accumulated error information to obtain the adjusted output field synchronous signal for display control.
The display control method executed by the computer readable instructions of the computer readable medium 40 provided by this embodiment is as described in the first embodiment, and therefore, will not be described in detail herein. Optionally, the computer-readable medium 40 in this embodiment is not described herein for brevity in order to implement the method in the first embodiment of the present invention. The technical effect of the computer-readable medium 40 provided in this embodiment is the same as that of the display control method in the first embodiment, and is not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and/or method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and the actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
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 (10)
1. A display control method, comprising:
restoring an input field synchronization signal from a video signal;
obtaining an output field synchronizing signal according to the input field synchronizing signal for display control;
obtaining accumulated error information according to the input field synchronizing signal and the output field synchronizing signal;
responding to a synchronous control signal, and adjusting the period of the output field synchronous signal according to the accumulated error information to obtain an adjusted output field synchronous signal for display control;
the accumulated error information is error information of at least one frame of image, and the error information is a time difference of the same frame period corresponding to the input field synchronous signal and the output field synchronous signal.
2. The method of claim 1, wherein obtaining accumulated error information based on the input field sync signal and the output field sync signal comprises:
calculating the error between the output field synchronous signal and the input field synchronous signal corresponding to each frame in a preset frame number to obtain error information;
and accumulating the error information to obtain the accumulated error information.
3. The method according to claim 1, wherein the adjusting the period of the output field sync signal according to the accumulated error information to obtain an adjusted output field sync signal for display control comprises:
and reducing the blanking time of the output field synchronous signal corresponding to the appointed frame according to the accumulated error information to obtain the adjusted output field synchronous signal.
4. The method of claim 2, wherein the adjusting the period of the output field sync signal according to the accumulated error information in response to the sync control signal to obtain an adjusted output field sync signal for display control further comprises:
and sending the synchronous control signal every other preset frame number.
5. A display control apparatus, characterized by comprising:
the signal recovery module is used for recovering the input field synchronous signal from the video signal;
the signal acquisition module is used for acquiring an output field synchronizing signal according to the input field synchronizing signal so as to be used for display control;
the accumulated error module is used for obtaining accumulated error information according to the input field synchronizing signal and the output field synchronizing signal;
the signal response module is used for responding to the synchronous control signal and adjusting the period of the output field synchronous signal according to the accumulated error information to obtain an adjusted output field synchronous signal for display control;
the accumulated error information is error information of at least one frame of image, and the error information is a time difference of the same frame period corresponding to the input field synchronous signal and the output field synchronous signal.
6. The display control apparatus according to claim 5, wherein the accumulated error module is specifically configured to:
calculating the error between the output field synchronous signal and the input field synchronous signal corresponding to each frame in a preset frame number to obtain error information;
and accumulating the error information to obtain the accumulated error information.
7. The display control apparatus according to claim 6, further comprising:
and the signal sending module is used for sending the synchronous control signal every other preset frame number.
8. The display control apparatus according to claim 5, wherein the signal recovery module, the signal acquisition module, the accumulated error module, and the signal response module are integrated in a programmable logic device.
9. A display control card comprising a programmable logic device, wherein the programmable logic device is configured to implement the display control method according to any one of claims 1 to 4.
10. A computer-readable medium storing computer-readable instructions, the computer-readable instructions comprising instructions for performing the display control method of any one of claims 1 to 4.
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| US6316974B1 (en) * | 2000-08-26 | 2001-11-13 | Rgb Systems, Inc. | Method and apparatus for vertically locking input and output signals |
| JP4500590B2 (en) * | 2004-06-10 | 2010-07-14 | キヤノン株式会社 | Signal processing device |
| CN100499737C (en) * | 2004-10-18 | 2009-06-10 | 凌阳科技股份有限公司 | Image zoom device and method |
| JP4602184B2 (en) * | 2005-07-27 | 2010-12-22 | 株式会社東芝 | Video display processing apparatus and backlight control method thereof |
| JP5241638B2 (en) * | 2009-07-23 | 2013-07-17 | 川崎マイクロエレクトロニクス株式会社 | Display control device |
| CN102376289B (en) * | 2010-08-06 | 2014-01-08 | 晨星软件研发(深圳)有限公司 | Display time sequence control circuit and method thereof |
| US9345083B2 (en) * | 2013-10-30 | 2016-05-17 | Apple Inc. | Boost converter with a pulse frequency modulation mode for operating above an audible frequency |
| JP6156578B2 (en) * | 2014-04-10 | 2017-07-05 | 株式会社島津製作所 | Control device for imaging device |
| KR102398027B1 (en) * | 2015-07-03 | 2022-05-17 | 삼성전자주식회사 | Dynamic preview display method of electronic apparatus and electronic apparatus thereof |
| CN107784992A (en) * | 2016-08-25 | 2018-03-09 | 晨星半导体股份有限公司 | Display control apparatus and control method |
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