CN106960662B - Display method of display device, display device and Virtual Reality (VR) system - Google Patents
Display method of display device, display device and Virtual Reality (VR) system Download PDFInfo
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- CN106960662B CN106960662B CN201610018026.8A CN201610018026A CN106960662B CN 106960662 B CN106960662 B CN 106960662B CN 201610018026 A CN201610018026 A CN 201610018026A CN 106960662 B CN106960662 B CN 106960662B
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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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0149—Head-up displays characterised by mechanical features
- G02B2027/0161—Head-up displays characterised by mechanical features characterised by the relative positioning of the constitutive elements
- G02B2027/0163—Electric or electronic control thereof
Abstract
The embodiment of the invention discloses a display method of a display device, the display device and a VR system, which are used for solving the problem of white stripes of an LCD screen when the video data transmission of the display device is interrupted and improving the user experience. The method provided by the embodiment of the invention comprises the following steps: judging whether video data transmission is interrupted; if the video data transmission interruption is detected, generating a control instruction; and controlling the backlight plate not to generate backlight according to the control instruction, so that the LCD screen of the display device is changed into a black screen.
Description
Technical Field
The invention relates to the technical field of VR (virtual reality), in particular to a display method of a display device, the display device and a VR system.
Background
When a user uses Virtual Reality (VR) equipment, when the VR equipment is turned off or a video data line is disconnected, video data can be immediately stopped from being transmitted, but at a Display device end, a certain time delay exists from the time when the processor finds that the video data stops being transmitted to the time when the processor controls the turning off of a Liquid Crystal Display (LCD) and an LCD driving chip.
Therefore, when the VR device is turned off, a white bar will be displayed on the LCD screen of the display device, which affects the user experience.
Disclosure of Invention
The embodiment of the invention provides a display method of a display device, the display device and a VR system, which are used for solving the problem of white stripes of an LCD screen when video data transmission of the display device is interrupted and improving user experience.
The invention provides a display method of a display device, which is applied to a Virtual Reality (VR) system, wherein the VR system comprises the display device and video source equipment, and the display method comprises the following steps:
judging whether video data transmission is interrupted;
if the video data transmission is interrupted, generating a control instruction;
and controlling the backlight plate not to generate backlight according to the control instruction, so that the LCD screen of the display device is changed into a black screen.
With reference to the first aspect of the present invention, in the first embodiment of the first aspect of the present invention, after the controlling the backlight plate not to generate backlight according to the control instruction, the method further includes:
detecting whether the LCD driving chip is in a working state;
if the LCD driving chip is in a working state, generating a chip turn-off instruction, and turning off the LCD driving chip according to the chip turn-off instruction;
and if the LCD driving chip is in a non-working state, executing other operations.
With reference to the first embodiment of the first aspect of the present invention, in the second embodiment of the first aspect of the present invention, the generating a chip turn-off instruction, and turning off the LCD driver chip according to the chip turn-off instruction includes:
generating a chip turn-off instruction according to a preset rule, wherein the chip turn-off instruction is used for turning off the LCD driving chip at a preset time point;
and turning off the LCD driving chip according to the chip turn-off instruction.
With reference to the first aspect, the first implementation manner of the first aspect, or the second implementation manner of the first aspect, in a third implementation manner of the first aspect, the display method further includes:
and if the video data transmission is not interrupted, outputting the video data.
The second aspect of the present invention provides a display device applied to a virtual reality VR system, including:
the judging module is used for judging whether the video data transmission is interrupted or not;
the first processing module is used for generating a control instruction when the video data transmission is interrupted;
and the execution module is used for controlling the backlight plate not to generate backlight according to the control instruction so that the LCD screen of the display device is changed into a black screen.
With reference to the second aspect of the present invention, in a first embodiment of the second aspect of the present invention, the display device further includes: a second processing module;
the judging module is also used for detecting whether the LCD driving chip is in a working state;
the second processing module is used for generating a chip turn-off instruction when the LCD driving chip is in a working state, and turning off the LCD driving chip according to the chip turn-off instruction;
the second processing module is further configured to execute other operations when the LCD driver chip is in an inoperative state.
In combination with the first embodiment of the second aspect of the present invention, in the second embodiment of the second aspect of the present invention,
the second processing module is specifically configured to generate a chip turn-off instruction according to a preset rule, where the chip turn-off instruction is used to turn off the LCD driver chip at a preset time point;
the second processing module is specifically configured to turn off the LCD driver chip according to the chip turn-off instruction.
With reference to the second aspect, the first embodiment of the second aspect, or the second embodiment of the second aspect, in a third embodiment of the second aspect, the display device further includes:
and the output module is used for outputting the video data when the LCD driving chip is in a stable state.
A third aspect of the present invention provides a virtual reality VR system, comprising:
video source equipment and a display device as claimed in claims 5 to 6;
a video data transmission link is established between the video source equipment and the display device;
the display device judges whether video data transmission is interrupted;
if the video data transmission is interrupted, the display device generates a control instruction;
and the display device controls the backlight plate not to generate backlight according to the control instruction, so that the LCD screen of the display device is changed into a black screen.
With reference to the third aspect of the present invention, in a first embodiment of the third aspect of the present invention, the VR system further includes: an interaction device;
the interactive device is connected with the display device and the video source equipment;
when the video data transmission is interrupted, the interactive device does not execute operation.
When the video data transmission is not interrupted, the interactive device executes operation.
According to the technical scheme, the embodiment of the invention has the following advantages:
when the display device judges that the video data transmission is interrupted, the backlight plate is controlled not to generate backlight by generating a control instruction, so that an LCD screen of the display device becomes a black screen, and a user cannot perceive the problem of white stripes on the LCD screen in the prior art because the LCD screen is the black screen, thereby improving the product experience of the user.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the embodiments and the drawings used in the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a display method of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a conventional backlight panel;
FIG. 3 is a schematic structural diagram of an embodiment of a display device according to the present invention;
FIG. 4 is a schematic structural diagram of another embodiment of a display device according to the present invention;
FIG. 5 is a schematic diagram of an embodiment of a VR system in accordance with the present invention;
fig. 6 is a schematic structural diagram of another embodiment of a VR system in accordance with the present invention.
Detailed Description
The embodiment of the invention provides a display method of a display device, the display device and a VR system, which are used for solving the problem of white stripes of an LCD screen when video data transmission of the display device is interrupted and improving user experience.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
The display method of the display device is described below by using a specific embodiment, and the display method is applied to a VR system, where the VR system includes a display device and a video source device, the display device may be of a glasses type or a headset type, and is not specifically limited, and the video source device may be a terminal device or a network server, and is not specifically limited.
Referring to fig. 1, an embodiment of the invention provides a display method of a display device, including:
101. judging whether the video data transmission is interrupted, if so, executing step 102;
in this embodiment, a video data transmission link is pre-established between the display device and the video source device, the video source device transmits video data to the display device, the display device receives video data transmitted by the video source device, the backlight plate generates backlight, the display device determines whether the video data transmission is interrupted, and specifically, the video data transmission link can be detected in real time, if video data has been detected in the video data transmission link before, but video data is not detected at this time, this indicates that the video data transmission is interrupted at this time, alternatively, it may be detected in real time whether a video transmission signal is received, if it has been detected before, if the video transmission signal is not detected, it indicates that the video data transmission is interrupted, and when the display device determines that the video data transmission is interrupted, step 102 is executed.
102. Generating a control instruction;
in this embodiment, when the display device determines that the video data transmission is interrupted, the display device generates a control instruction, and the control instruction is used to control the backlight panel.
103. And controlling the backlight plate not to generate backlight according to the control instruction.
In this embodiment, as shown in fig. 2, the power board provides a power signal 1 to the backlight board when the display device is turned on, the general power signal 1 is a direct current voltage of 24V or 12V, the digital board provides an enable signal 2 to the backlight board, the enable signal 2 can be in a high level state and a low level state, when the enable signal 2 is in the high level, the backlight board normally works, when the enable signal 2 is in the low level, the backlight board does not work, the digital board provides a brightness control signal 3 to the backlight board, the brightness control signal 3 is an analog direct current voltage of 0 to 3V, changing a voltage value of the brightness control signal 3 can adjust the brightness of the backlight board generating the backlight, and controlling the enable signal 2 to output the low level according to the control instruction, so that the backlight board does not work, the backlight is not generated, and the LCD screen of the display device becomes a black screen.
In the embodiment of the invention, when the display device judges that the transmission of the video data is interrupted, the control instruction is generated to control the backlight plate not to generate backlight, so that the LCD screen of the display device is changed into a black screen.
Optionally, in some embodiments of the present invention, after controlling the backlight board not to generate backlight according to the control instruction, the method further includes:
detecting whether the LCD driving chip is in a working state;
if the LCD driving chip is in a working state, generating a chip turn-off instruction, and turning off the LCD driving chip according to the chip turn-off instruction;
and if the LCD driving chip is in a non-operating state, executing other operations.
Optionally, in some embodiments of the present invention, generating a chip turn-off instruction, and turning off the LCD driver chip according to the chip turn-off instruction includes:
generating a chip turn-off instruction according to a preset rule, wherein the chip turn-off instruction is used for turning off the LCD driving chip at a preset time point;
and turning off the LCD driving chip according to the chip turn-off instruction.
In the embodiment of the invention, when the display device is started, the LCD driving chip needs a period of time from starting to stabilizing, therefore, when the interruption of video data transmission is detected, the LCD driving chip is enabled to keep the electric quantity for a period of time, and the LCD driving chip is turned off when the preset time point is reached, for example, a user can perform continuous starting and turning-off actions on the display device, the LCD driving chip can not be in a real turning-off condition, and the LCD driving chip always keeps a charged state, so that the LCD screen can display the video image corresponding to the output video data in time.
Optionally, in some embodiments of the present invention, the method further includes:
and if the video data transmission is not interrupted, outputting the video data.
In this embodiment, when the video data transmission is not interrupted, the LCD screen does not appear white stripes, and the video data is normally output.
Referring to fig. 3, an embodiment of the invention provides a display device, including:
a judging module 301, configured to judge whether video data transmission is interrupted;
a first processing module 302, configured to generate a control instruction when video data transmission is interrupted;
and the execution module 303 is configured to control the backlight board not to generate backlight according to the control instruction, so that the LCD screen of the display device becomes a black screen.
In the embodiment of the present invention, when the determining module 301 determines that the video data transmission is interrupted, the first processing module 302 generates a control instruction, and the executing module 303 controls the backlight board not to generate backlight, so that the LCD screen of the display device is changed into a black screen.
Optionally, as shown in fig. 4, in some embodiments of the present invention, the display device further includes: a second processing module 401;
the judging module 301 is further configured to detect whether the LCD driver chip is in a working state;
the second processing module 401 is configured to generate a chip turn-off instruction when the LCD driver chip is in a working state, and turn off the LCD driver chip according to the chip turn-off instruction;
the second processing module 401 is further configured to perform other operations when the LCD driver chip is in an inactive state.
Alternatively, as shown in fig. 4, in some embodiments of the invention,
the second processing module 401 is specifically configured to generate a chip turn-off instruction according to a preset rule, where the chip turn-off instruction is used to turn off the LCD driver chip at a preset time point;
the second processing module 401 is specifically configured to turn off the LCD driving chip according to the chip turn-off instruction.
Optionally, as shown in fig. 4, in some embodiments of the present invention, the display device further includes:
and an output module 402, configured to output video data when the LCD driver chip is in a stable state.
Referring to fig. 5, an embodiment of the invention provides a VR system, including:
501, establishing a video data transmission link between video source equipment and a display device 502;
when the display device 502 is turned on, the video source apparatus 501 sends video data to the display device 502;
the display device 502 determines whether video data transmission is interrupted;
if the video data transmission is interrupted, the display device 502 generates a control command;
the display device 502 controls the backlight plate not to generate backlight according to the control instruction, so that the LCD screen of the display device 502 becomes a black screen.
In the embodiment of the invention, when the display device 502 judges that the transmission of the video data is interrupted, the control instruction is generated to control the backlight plate not to generate backlight, so that the LCD screen of the display device 502 is changed into a black screen, and a user cannot perceive the problem of white stripes on the LCD screen in the prior art because the LCD screen is black, thereby improving the product experience of the user.
Optionally, as shown in fig. 6, in some embodiments of the invention, the VR system further includes: an interaction device 601;
the interactive device 601 is connected with the display device 502 and the video source equipment 501;
when the display device 502 determines that the transmission of the video data is interrupted, the interactive device 601 does not perform any operation.
When the display device 502 determines that the video data transmission is not interrupted, the interactive device 602 performs an operation.
In the embodiment of the present invention, the VR system may further include, in addition to the display device for outputting video, an audio device for outputting audio, a touch device for providing tactile sensation, and the like, which are collectively referred to as an interactive device, when video data transmission is interrupted, the user cannot see the video image, and then for better user experience, the interactive device cannot perform an operation when the user cannot see the video image, and when video data transmission is not interrupted, the interactive device performs an operation.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of 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 a plurality of 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.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A display method of a display device is applied to a Virtual Reality (VR) system, the VR system comprises the display device and video source equipment, and the display method comprises the following steps:
judging whether video data transmission is interrupted;
if the video data transmission is interrupted, generating a control instruction;
controlling a backlight plate not to generate backlight according to the control instruction, so that an LCD screen of the display device is changed into a black screen;
after the controlling the backlight plate not to generate backlight according to the control instruction, the method further comprises:
detecting whether the LCD driving chip is in a working state;
if the LCD driving chip is in a working state, generating a chip turn-off instruction, and turning off the LCD driving chip according to the chip turn-off instruction;
if the LCD driving chip is in a non-working state, executing other operations;
the generating a chip turn-off instruction, and turning off the LCD driving chip according to the chip turn-off instruction, includes:
generating a chip turn-off instruction according to a preset rule, wherein the chip turn-off instruction is used for turning off the LCD driving chip at a preset time point;
and turning off the LCD driving chip according to the chip turn-off instruction.
2. The display method according to claim 1, further comprising:
and if the video data transmission is not interrupted, outputting the video data.
3. A display device applied to a Virtual Reality (VR) system comprises:
the judging module is used for judging whether the video data transmission is interrupted or not;
the first processing module is used for generating a control instruction when the video data transmission is interrupted;
the execution module is used for controlling the backlight plate not to generate backlight according to the control instruction so that an LCD screen of the display device is changed into a black screen;
the display device further includes: a second processing module;
the judging module is also used for detecting whether the LCD driving chip is in a working state;
the second processing module is used for generating a chip turn-off instruction when the LCD driving chip is in a working state, and turning off the LCD driving chip according to the chip turn-off instruction;
the second processing module is further used for executing other operations when the LCD driving chip is in a non-operating state;
the second processing module is specifically configured to generate a chip turn-off instruction according to a preset rule, where the chip turn-off instruction is used to turn off the LCD driver chip at a preset time point;
the second processing module is specifically configured to turn off the LCD driver chip according to the chip turn-off instruction.
4. The display device according to claim 3, further comprising:
and the output module is used for outputting the video data when the LCD driving chip is in a stable state.
5. A Virtual Reality (VR) system comprising:
a video source device and the display apparatus of claim 3 or 4;
a video data transmission link is established between the video source equipment and the display device;
the display device judges whether video data transmission is interrupted;
if the video data transmission is interrupted, the display device generates a control instruction;
and the display device controls the backlight plate not to generate backlight according to the control instruction, so that the LCD screen of the display device is changed into a black screen.
6. The VR system of claim 5 further comprising: an interaction device;
the interactive device is connected with the display device and the video source equipment;
when the video data transmission is interrupted, the interactive device does not execute operation;
when the video data transmission is not interrupted, the interactive device executes operation.
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| CN201610018026.8A CN106960662B (en) | 2016-01-12 | 2016-01-12 | Display method of display device, display device and Virtual Reality (VR) system |
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| CN201610018026.8A CN106960662B (en) | 2016-01-12 | 2016-01-12 | Display method of display device, display device and Virtual Reality (VR) system |
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| CN106960662B true CN106960662B (en) | 2021-05-25 |
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| CN111741344B (en) * | 2020-06-30 | 2022-08-16 | 歌尔科技有限公司 | Video display method of VR equipment and VR equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1735169A (en) * | 2005-05-26 | 2006-02-15 | 深圳创维—Rgb电子有限公司 | Method and circuit for controlling TV set on-off |
| CN201773566U (en) * | 2009-12-30 | 2011-03-23 | 深圳市康冠技术有限公司 | LCD (liquid crystal display) turnoff residual shadow eliminator and LCD |
| CN103955269A (en) * | 2014-04-09 | 2014-07-30 | 天津大学 | Intelligent glass brain-computer interface method based on virtual real environment |
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2016
- 2016-01-12 CN CN201610018026.8A patent/CN106960662B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1735169A (en) * | 2005-05-26 | 2006-02-15 | 深圳创维—Rgb电子有限公司 | Method and circuit for controlling TV set on-off |
| CN201773566U (en) * | 2009-12-30 | 2011-03-23 | 深圳市康冠技术有限公司 | LCD (liquid crystal display) turnoff residual shadow eliminator and LCD |
| CN103955269A (en) * | 2014-04-09 | 2014-07-30 | 天津大学 | Intelligent glass brain-computer interface method based on virtual real environment |
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