CN109036294A - Screen for VR equipment puts black backlight drive circuit and VR equipment on the skin - Google Patents
Screen for VR equipment puts black backlight drive circuit and VR equipment on the skin Download PDFInfo
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- CN109036294A CN109036294A CN201810866748.8A CN201810866748A CN109036294A CN 109036294 A CN109036294 A CN 109036294A CN 201810866748 A CN201810866748 A CN 201810866748A CN 109036294 A CN109036294 A CN 109036294A
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- drive circuit
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- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims abstract description 73
- 239000003990 capacitor Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 9
- 230000005059 dormancy Effects 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 20
- 230000006870 function Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000004438 eyesight Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—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
- G09G3/3406—Control of illumination source
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
Put black backlight drive circuit and its VR equipment on the skin the present invention provides a kind of screen for VR equipment.The backlight circuit includes Power Management Unit module, DCDC module and backlight drive module, and Power Management Unit module provides power input for DCDC module；DCDC module is adjusted the power supply from the Power Management Unit module, provides the power supply of burning voltage to backlight drive module.The circuit can provide stable input power for backlight drive module, and enhancing screen puts black period on the skin and puts the stability of the power supply of the VR device systems of black moment on the skin, to promote the stability of entire VR device systems.
Description
Technical field
The present invention, which discloses, is related to electronic technology field more particularly to a kind of screen for VR equipment puts black backlight drive on the skin
Circuit and VR equipment.
Background technique
In the electronic equipment for currently supporting VR (Virtual Reality virtual reality) technology, dodged to solve screen
Bright and viewing person wears the sense of discomfort of viewing for a long time, and screen has been used to put black technology on the skin, and the backlight of screen is closed in control.Screen is put on the skin
Black technology preferably solves the problems, such as screen flicker, improves the comfort of viewing person, but the screen of existing VR equipment
Putting black technology on the skin can increase suddenly in the electric current that screen puts black moment on the skin.The screen backlight driving circuit of existing VR equipment is usually will
Independent battery-end is directly output as the power supply of the screen backlight drive module of VR equipment or battery-end output is passed through
PMU (Power Management Unit Power Management Unit) control after power supply as backlight drive module power input.
It is very big to the voltage influence of entire VR device systems that the screen backlight driving circuit of existing VR equipment in screen puts black period on the skin, leads
Cause the bad stability of power-supply system；Simultaneously as moment power consumption increases the voltage influence to battery-end also very greatly, reduce VR
The service life of equipment.
Summary of the invention
Black backlight drive circuit is put on the skin the object of the present invention is to provide a kind of screen for VR equipment and comprising the backlight
The VR equipment of driving circuit, the backlight drive circuit can provide stable input power for backlight drive module, enhance screen
It puts black period on the skin and puts the stability of the power supply of the VR device systems of black moment on the skin, to promote the stabilization of entire VR device systems
Property.
According to the embodiment of the first aspect of the invention, a kind of screen for VR equipment is provided and puts black backlight drive electricity on the skin
Road, wherein the backlight drive circuit includes Power Management Unit module, DCDC (Direct Current-Direct Current
DC power supply is transformed to DC power supply) module, backlight drive module, wherein
Power Management Unit module provides power input for DCDC module；
DCDC module is adjusted the power supply from Power Management Unit module, provides to backlight drive module and stablizes electricity
Pressure.
Specifically, which further includes filter module, wherein filter module is located at DCDC module and backlight is driven
Between dynamic model block, for filtering out power supply disturbance and ripple.
Specifically, which includes capacitor filter.
Specifically, which further includes CPU control module, the CPU control module provide control signal to
DCDC module.
Specifically, the closing of control DCDC module is supplied to back when which is included in backlight drive module suspend mode
The power supply of optical drive module.
Embodiment according to the second aspect of the invention provides a kind of VR equipment, wherein the VR equipment includes being used for
Screen puts black backlight drive circuit on the skin, wherein the backlight drive circuit includes Power Management Unit module, DCDC module, backlight
Drive module, wherein
Power Management Unit module provides power input for DCDC module；
DCDC module is adjusted the power supply from Power Management Unit module, provides to backlight drive module and stablizes electricity
Pressure.
Specifically, which further includes filter module, which is located at DCDC module and backlight drive
Between module, for filtering out power supply disturbance and ripple.
Specifically, which includes capacitor filter.
Specifically, which further includes CPU control module, and CPU control module provides control signal to DCDC
Module.
Specifically, which controls the closing of DCDC module in backlight drive module suspend mode and is supplied to backlight drive
The power supply of dynamic model block.
Compared with prior art, the embodiment of the present invention has the advantage that VR equipment puts what black function used on the skin in screen
Immediate current is very big, and the embodiment of the present invention can reduce the influence of instantaneous large-current, reduces the interference to VR device systems；?
During the screen of VR equipment puts black function use on the skin, the load of entire VR device systems increases, and supply voltage is unstable, of the invention
Embodiment can make the voltage for being input to backlight drive module keep stablizing, to promote the stability of entire VR device systems.
Therefore the embodiment of the present invention can put black backlight drive module on the skin for support screen and provide stable input power.
Detailed description of the invention
By reading made detailed description of non-limiting embodiments referring to the drawings, of the invention is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is that the screen for VR equipment of the embodiment of the present invention puts the module diagram of black backlight drive circuit on the skin；
Fig. 2 is that the screen for VR equipment of the preferred embodiment of the present invention puts the module signal of black backlight drive circuit on the skin
Figure；
Fig. 3 is that the screen for VR equipment of another preferred embodiment of the invention puts the mould of black backlight drive circuit on the skin
Block schematic diagram；
Fig. 4 is the schematic diagram of the VR equipment for putting black backlight drive circuit on the skin including screen of the embodiment of the present invention；
Fig. 5 is the schematic diagram of the VR equipment for putting black backlight drive circuit on the skin including screen of the preferred embodiment of the present invention；
It includes screen is put the VR equipment of black backlight drive circuit on the skin and shown that Fig. 6, which is another preferred embodiment of the invention,
It is intended to.
The same or similar appended drawing reference represents the same or similar component in attached drawing.
Specific embodiment
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing or method described as flow chart.Although operations are described as the processing of sequence by flow chart, therein to be permitted
Multioperation can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of operations can be rearranged.When it
The processing can be terminated when operation completion, it is also possible to have the additional step being not included in attached drawing.The processing
It can correspond to method, function, regulation, subroutine, subprogram etc..
Method (some of them are illustrated by process) discussed hereafter can be by hardware, software, firmware, centre
Part, microcode, hardware description language or any combination thereof are implemented.Implement when with software, firmware, middleware or microcode
When, program code or code segment to implement necessary task can be stored in machine or computer-readable medium and (for example deposit
Storage media) in.Necessary task can be implemented in (one or more) processor.
Specific structure and function details disclosed herein are only representative, and are for describing the present invention show
The purpose of example property embodiment.But the present invention can be implemented by many alternative forms, and be not interpreted as
It is limited only by the embodiments set forth herein.
It should be understood that when a unit referred to as " connects " or when " coupled " to another unit, can directly connect
Another unit is connect or be coupled to, or may exist temporary location.In contrast, " directly connect when a unit is referred to as
Connect " or " direct-coupling " to another unit when, then temporary location is not present.It should explain in a comparable manner and be used to retouch
State the relationship between unit other words (such as " between being in ... " compared to " between being directly in ... ", " and with ... it is adjacent
Closely " compared to " with ... be directly adjacent to " etc.).
Although it should be understood that may have been used term " first ", " second " etc. herein to describe each unit,
But these units should not be limited by these terms.The use of these items is only for by a unit and another unit
It distinguishes.For example, without departing substantially from the range of exemplary embodiment, it is single that first unit can be referred to as second
Member, and similarly second unit can be referred to as first unit.Term "and/or" used herein above include one of them or
Any and all combinations of more listed associated items.
Term used herein above is not intended to limit exemplary embodiment just for the sake of description specific embodiment.Unless
Context clearly refers else, otherwise singular used herein above "one", " one " also attempt to include plural number.Also answer
When understanding, term " includes " and/or "comprising" used herein above provide stated feature, integer, step, operation,
The presence of unit and/or component, and do not preclude the presence or addition of other one or more features, integer, step, operation, unit,
Component and/or combination thereof.
It should further be mentioned that the function action being previously mentioned can be attached according to being different from some replace implementations
The sequence indicated in figure occurs.For example, related function action is depended on, the two width figures shown in succession actually may be used
Substantially simultaneously to execute or can execute in a reverse order sometimes.
Present invention is further described in detail with reference to the accompanying drawing.
Fig. 1 is that the screen for VR equipment of the embodiment of the present invention puts the module diagram of black backlight drive circuit on the skin.
The backlight drive circuit of embodiment according to the present invention can be realized in the VR equipment that support screen puts black technology on the skin.Screen is put on the skin black
Technology can dynamically close screen, preferably solve the problems, such as screen flicker, improve the comfort of viewing person.Backlight is driven
Dynamic circuit refers to putting the relevant circuit of the backlight drive of display or screen of black technology on the skin to support screen.The embodiment of the present invention
VR equipment include but is not limited to the VR helmet, VR all-in-one machine, VR game station, VR terminal device, VR user equipment etc. with screen
Curtain puts the VR electronic equipment of black technology on the skin.It should be noted that VR equipment listed above is only for example, other are existing or from now on
What is be likely to occur puts the VR equipment of black technology on the skin with screen, is such as applicable to the present invention, should also be included in the scope of the present invention
Within, and be incorporated herein by reference.
As shown in Figure 1, putting black backlight drive circuit on the skin according to the screen for VR equipment of the present embodiment includes power supply pipe
Manage unit module 101, DCDC module 102 and backlight drive module 103.Wherein, Power Management Unit module 101 is DCDC module
102 provide power input；DCDC module 102 is adjusted the power supply from Power Management Unit module 101, gives backlight drive
The power supply of the offer burning voltage of module 103.Backlight drive module 103 includes in VR equipment for the aobvious of picture to be presented to user
Show that device or screen provide the function of backlight drive.It can wrap the back for putting black function on the skin containing support screen in backlight drive module 103
Optical drive chip and its peripheral circuit.
The input terminal connection external power supply or battery, output end of Power Management Unit module 101 are connected to DCDC module
102.Direct current needed for the voltage of external power supply or battery is converted to backlight drive module 103 by Power Management Unit module 101
The voltage range of power supply.Backlight drive module 103 is black because VR screen is supported to put on the skin, is supported on screen and puts black opening and closing front and back on the skin
Variation is very big, therefore DCDC module 102 is adjusted the voltage of the power supply from Power Management Unit module 101, makes to export
It keeps stablizing to the voltage of the power supply of backlight drive module 103.The rated power of DCDC module 102, temperature range, working frequency
Load, the load of the backlight drive module 103 and other function module that are driven with indexs and DCDC modules 102 such as voltage ranges
Vibration frequency and to the contents such as power requirement correlation.Backlight drive module 103 is the electronic curtain that support screen puts black function on the skin
Backlight drive is provided.
Screen puts the application of black technology on the skin so that backlight drive module switch frequency increases very much.Black technology is put on the skin in screen to use
Moment, electric current increase meeting so that input terminal supply voltage is unstable, to influence the stability of entire VR device systems, even
It will appear the phenomenon that VR equipment is automatically closed.The circuit of the embodiment of the present invention is by DCDC module application before backlight drive module
After PMU module, so as to be backlight drive module and its in the moment of backlight switch when support screen puts black technology on the skin
His functional module provides stable voltage, provides guarantee for the stabilization of VR device systems.
Fig. 2 is that the screen for VR equipment of the preferred embodiment of the present invention puts the module signal of black backlight drive circuit on the skin
Figure.As shown in Fig. 2, putting black backlight drive circuit on the skin according to the screen for VR equipment of this preferred embodiment includes power management
Unit module 101, DCDC module 102, backlight drive module 103 and filter module 104.The wherein electricity of mark shown in Fig. 2
Source control unit module 101, DCDC module 102, backlight drive module 103 and front described power management list referring to Fig.1
Element module 101, DCDC module 102, the content of backlight drive module 103 are identical.In the preferred embodiment shown in figure 2, backlight
Driving circuit further includes filter module 104.
Filter module 104 is between DCDC module 102 and backlight drive module 103, for filtering out power supply disturbance and line
Wave.The power supply that the input of filter module 104 is exported from DCDC module 102.Filter module 104 may include using common mode filtering
Circuit, the filter circuits such as high-frequency filter circuit, RC filter circuit.The present invention does not limit the shape for the circuit that filter module 104 uses
Formula.In a preferred embodiment, filter module 104 includes capacitor filter, that is, uses the capacitor of large capacity, such as
The capacitor of 100UF-200UF, to filter out the transient high-current occurred in power supply.
Fig. 3 is that the screen for VR equipment of another preferred embodiment of the invention puts the mould of black backlight drive circuit on the skin
Block schematic diagram.As shown in figure 3, putting black backlight drive circuit on the skin according to the support screen of this preferred embodiment includes power management list
Element module 101, DCDC module 102, backlight drive module 103 and CPU control module 105.The wherein electricity of mark shown in Fig. 3
Source control unit module 101, DCDC module 102, backlight drive module 103 and front described power management list referring to Fig.1
Element module 101, DCDC module 102, the content of backlight drive module 103 are identical.In preferred embodiment shown in Fig. 3, backlight
Driving circuit further includes CPU control module 105.
CPU control module 105 provides control signal to DCDC module 102.It include intelligent CPU in CPU control module 105
And its peripheral circuit, control signal can be sent to DCDC module 102.For example, ring of the CPU control module 105 in electronic equipment
Border when the temperature is excessively high, can close the output of Power Management Unit module 101 and DCDC module 102, to protect in electronic equipment
Device is not damaged.In another example CPU control module 105 after longer period of time is used continuously in user, closes DCDC module
102 output, to protect the eyesight of user.CPU control module 105 can also need dynamically Switch DC/DC module according to system
102 output.
In a preferred embodiment, DCDC is controlled when CPU control module 105 is included in backlight drive 103 suspend mode of module
Module 102 closes the power supply for being supplied to backlight drive module 103.Specifically, when backlight drive 103 suspend mode of module, CPU control
Molding block 105 sends a signal to DCDC module 102, and notice DCDC module 102 closes the electricity for being supplied to backlight drive module 103
Source.The sleep procedure of backlight drive module 103 can be static, semi-static or dynamic, CPU control closing backlight drive module
Power supply when 103 suspend mode, to save the power consumption of whole system.
Fig. 4 is the schematic diagram of the VR equipment for putting black backlight drive circuit on the skin including screen of the embodiment of the present invention.Screen
Screen can dynamically be closed by putting black technology on the skin, preferably solve the problems, such as screen flicker, improve the comfort of viewing person.Back
Light drive circuit refers to putting the relevant circuit of the backlight drive of display or screen of black technology on the skin to support screen.According to this hair
The VR equipment of bright embodiment includes but is not limited to that the VR helmet, VR all-in-one machine, VR game station, VR terminal device, VR user set
It is standby to wait the VR electronic equipment for putting black technology on the skin with screen.It should be noted that VR equipment listed above is only for example, other are existing
The VR equipment for putting black technology on the skin with screen that is having or being likely to occur from now on, is such as applicable to the present invention, should also be included in this hair
Within bright protection scope, and it is incorporated herein by reference.
As shown in figure 4, putting on the skin in the VR equipment 20 of black backlight drive circuit including screen according to the present embodiment, the backlight
Driving circuit 21 includes Power Management Unit module 201, DCDC module 202 and backlight drive module 203.
Wherein, Power Management Unit module 201 is that DCDC module 202 provides power input；DCDC module 202 is to from electricity
The power supply of source control unit module 201 is adjusted, and provides the power supply of burning voltage to backlight drive module 203.Backlight drive
Module 203 includes the function of the display or screen offer backlight drive in VR equipment for picture to be presented to user.Backlight
It can wrap the backlight driving chip and its peripheral circuit for putting black function on the skin containing support screen in drive module 203.
The input terminal connection external power supply or battery, output end of Power Management Unit module 201 are connected to DCDC module
202.Direct current needed for the voltage of external power supply or battery is converted to backlight drive module 203 by Power Management Unit module 201
The voltage range of power supply.Backlight drive module 203 is black because VR screen is supported to put on the skin, is supported on screen and puts black opening and closing front and back on the skin
Variation is very big, therefore DCDC module 202 is adjusted the voltage of the power supply from Power Management Unit module 201, makes to export
It keeps stablizing to the voltage of the power supply of backlight drive module 203.The rated power of DCDC module 202, temperature range, working frequency
Load, the load of the backlight drive module 203 and other function module that are driven with indexs and DCDC modules 202 such as voltage ranges
Vibration frequency and to the contents such as power requirement correlation.Backlight drive module 203 is the electronic curtain that support screen puts black function on the skin
Backlight drive is provided.
Screen puts the application of black technology on the skin so that backlight drive module switch frequency increases very much.Black technology is put on the skin in screen to use
Moment, electric current increase meeting so that input terminal supply voltage is unstable, to influence the stability of entire VR device systems, even
It will appear the phenomenon that VR equipment is automatically closed.The circuit of the embodiment of the present invention is by DCDC module application before backlight drive module
After PMU module, so as to be backlight drive module and its in the moment of backlight switch when support screen puts black technology on the skin
His functional module provides stable voltage, provides guarantee for the stabilization of VR device systems.
Fig. 5 is the schematic diagram of the VR equipment for putting black backlight drive circuit on the skin including screen of the preferred embodiment of the present invention.
As shown in figure 5, including Power Management Unit module according to the backlight drive circuit 21 ' in the VR equipment 20 ' of this preferred embodiment
201, DCDC module 202, screen backlight drive module 203 and filter module 204.The wherein power supply pipe of mark shown in Fig. 5
Manage unit module 201, DCDC module 202, backlight drive module 203 and front the Power Management Unit mould referring to described in Fig. 4
Block 201, DCDC module 202, the content of backlight drive module 203 are identical.In preferred embodiment shown in Fig. 5, backlight drive
Circuit 21 ' further includes filter module 204.
Filter module 204 is between DCDC module 202 and backlight drive module 203, for filtering out power supply disturbance and line
Wave.The power supply that the input of filter module 204 is exported from DCDC module 202.Filter module 204 may include using common mode filtering
Circuit, the filter circuits such as high-frequency filter circuit, RC filter circuit.The present invention does not limit the shape for the circuit that filter module 204 uses
Formula.In a preferred embodiment, filter module 204 includes capacitor filter, that is, uses the capacitor of large capacity, such as
The capacitor of 100UF-200UF, to filter out the transient high-current occurred in power supply.
It includes screen is put the VR equipment of black backlight drive circuit on the skin and shown that Fig. 6, which is another preferred embodiment of the invention,
It is intended to.It include as shown in Figure 6 Power Management Unit according to the backlight drive circuit 21 " in the VR equipment 20 " of this preferred embodiment
Module 201, DCDC module 202, backlight drive module 203 and CPU control module 205.The wherein power supply of mark shown in Fig. 6
Administrative unit module 201, DCDC module 202, backlight drive module 203 and the front Power Management Unit referring to described in Fig. 4
Module 201, DCDC module 202, the content of backlight drive module 203 are identical.In preferred embodiment shown in Fig. 6, backlight is driven
Dynamic circuit 21 " further includes CPU control module 205.
CPU control module 205 provides control signal to DCDC module 202.It include intelligent CPU in CPU control module 205
And its peripheral circuit, control signal can be sent to DCDC module 202.For example, ring of the CPU control module 205 in electronic equipment
Border when the temperature is excessively high, can close the output of Power Management Unit module 201 and DCDC module 202, to protect in electronic equipment
Device is not damaged.In another example CPU control module 205 after longer period of time is used continuously in user, closes DCDC module
202 output, to protect the eyesight of user.CPU control module 205 can also need dynamically Switch DC/DC module according to system
202 output.
In a preferred embodiment, DCDC is controlled when CPU control module 205 is included in backlight drive 203 suspend mode of module
Module 202 closes the power supply for being supplied to backlight drive module 203.Specifically, when backlight drive 203 suspend mode of module, CPU control
Molding block 205 sends a signal to DCDC module 202, and notice DCDC module 202 closes the electricity for being supplied to backlight drive module 203
Source.The sleep procedure of backlight drive module 203 can be static, semi-static or dynamic, CPU control closing backlight drive module
Power supply when 203 suspend mode, to save the power consumption of whole system.
It should be noted that the present invention can be carried out in the assembly of software and/or software and hardware, for example, this hair
Specific integrated circuit (ASIC) can be used in bright each circuit or any other is realized similar to hardware device.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included in the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.This
Outside, it is clear that one word of " comprising " does not exclude other units or steps, and odd number is not excluded for plural number.That states in system claims is multiple
Unit or device can also be implemented through software or hardware by a unit or device.The first, the second equal words are used to table
Show title, and does not indicate any particular order.
Claims (10)
1. a kind of screen for VR equipment puts black backlight drive circuit on the skin, wherein the backlight drive circuit includes power management
Unit module, DCDC module, backlight drive module, wherein
The Power Management Unit module provides power input for the DCDC module；
The DCDC module is adjusted the power supply from the Power Management Unit module, mentions to the backlight drive module
For burning voltage.
2. backlight drive circuit according to claim 1, wherein the backlight drive circuit further includes filter module, described
Filter module is between the DCDC module and the backlight drive module, for filtering out power supply disturbance and ripple.
3. backlight drive circuit according to claim 2, wherein the filter module includes capacitor filter.
4. backlight drive circuit according to any one of claim 1 to 3, wherein the backlight drive circuit further includes CPU
Control module, the CPU control module provide control signal to the DCDC module.
5. backlight drive circuit according to claim 4, wherein the CPU control module is included in the backlight drive
The DCDC module is controlled when module suspend mode closes the power supply for being supplied to the backlight drive module.
6. a kind of VR equipment, wherein the VR equipment includes putting black backlight drive circuit on the skin for screen, wherein the backlight drive
Circuit includes Power Management Unit module, DCDC module, backlight drive module, wherein
The Power Management Unit module provides power input for the DCDC module；
The DCDC module is adjusted the power supply from the Power Management Unit module, mentions to the backlight drive module
For burning voltage.
7. VR equipment according to claim 6, wherein the backlight drive circuit further includes filter module, the filtering mould
Block is between the DCDC module and the backlight drive module, for filtering out power supply disturbance and ripple.
8. VR equipment according to claim 7, wherein the filter module includes capacitor filter.
9. the VR equipment according to any one of claim 6 to 8, wherein the backlight drive circuit further includes CPU control mould
Block, the CPU control module provide control signal to the DCDC module.
10. VR equipment according to claim 9, wherein the CPU control module is included in the backlight drive module and stops
The DCDC module is controlled when dormancy closes the power supply for being supplied to the backlight drive module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810866748.8A CN109036294A (en) | 2018-08-01 | 2018-08-01 | Screen for VR equipment puts black backlight drive circuit and VR equipment on the skin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810866748.8A CN109036294A (en) | 2018-08-01 | 2018-08-01 | Screen for VR equipment puts black backlight drive circuit and VR equipment on the skin |
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| CN109036294A true CN109036294A (en) | 2018-12-18 |
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| CN201810866748.8A Pending CN109036294A (en) | 2018-08-01 | 2018-08-01 | Screen for VR equipment puts black backlight drive circuit and VR equipment on the skin |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101083860A (en) * | 2006-06-01 | 2007-12-05 | 索尼株式会社 | Drive device for light emitting diode element, light source device, and display |
| US20090040173A1 (en) * | 2005-11-07 | 2009-02-12 | Go Ezaki | Led driver and display device using the same |
| CN103325345A (en) * | 2012-03-23 | 2013-09-25 | 索尼公司 | Light emitting element drive device, light emitting element drive method, and display apparatus |
| US20140043314A1 (en) * | 2012-08-08 | 2014-02-13 | Samsung Display Co., Ltd. | Driving apparatus of display panel and display device including the same |
| JP2016057359A (en) * | 2014-09-05 | 2016-04-21 | 株式会社ジャパンディスプレイ | Display device and drive method of the same |
| CN205566737U (en) * | 2016-03-31 | 2016-09-07 | 深圳多哚新技术有限责任公司 | Circuit in a poor light of VR display screen |
| CN205751476U (en) * | 2016-05-11 | 2016-11-30 | 深圳市金立通信设备有限公司 | A kind of power supply circuits of OLED display screen |
| CN207516649U (en) * | 2017-12-15 | 2018-06-19 | 潍坊歌尔电子有限公司 | Head-mounted display |
-
2018
- 2018-08-01 CN CN201810866748.8A patent/CN109036294A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090040173A1 (en) * | 2005-11-07 | 2009-02-12 | Go Ezaki | Led driver and display device using the same |
| CN101083860A (en) * | 2006-06-01 | 2007-12-05 | 索尼株式会社 | Drive device for light emitting diode element, light source device, and display |
| CN103325345A (en) * | 2012-03-23 | 2013-09-25 | 索尼公司 | Light emitting element drive device, light emitting element drive method, and display apparatus |
| US20140043314A1 (en) * | 2012-08-08 | 2014-02-13 | Samsung Display Co., Ltd. | Driving apparatus of display panel and display device including the same |
| JP2016057359A (en) * | 2014-09-05 | 2016-04-21 | 株式会社ジャパンディスプレイ | Display device and drive method of the same |
| CN205566737U (en) * | 2016-03-31 | 2016-09-07 | 深圳多哚新技术有限责任公司 | Circuit in a poor light of VR display screen |
| CN205751476U (en) * | 2016-05-11 | 2016-11-30 | 深圳市金立通信设备有限公司 | A kind of power supply circuits of OLED display screen |
| CN207516649U (en) * | 2017-12-15 | 2018-06-19 | 潍坊歌尔电子有限公司 | Head-mounted display |
Non-Patent Citations (2)
| Title |
|---|
| 宋家友: "《电子爱好者集成电子线路设计手册》", 31 May 2002 * |
| 薛晓明: "《移动通信技术 第2版》", 31 January 2010 * |
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Application publication date: 20181218 |