CN207516649U - Head-mounted display - Google Patents
Head-mounted display Download PDFInfo
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- CN207516649U CN207516649U CN201721753704.1U CN201721753704U CN207516649U CN 207516649 U CN207516649 U CN 207516649U CN 201721753704 U CN201721753704 U CN 201721753704U CN 207516649 U CN207516649 U CN 207516649U
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- backlight
- head
- lcd
- drive circuit
- mounted display
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Abstract
The utility model discloses a kind of head-mounted displays, including power supply and LCD, backlight is provided on LCD and drives the backlight drive circuit of backlight luminescence, backlight drive circuit is respectively with backlight and power electric connection, and the output terminal of backlight drive circuit is equipped with the energy storing members being connected electrically.During use, when backlight drive circuit receives the electric signal for opening backlight, the larger drive signal of output power to backlight, makes backlight moment send out stronger light together for its output terminal and energy storing members, it is seen that, the LCD of the utility model has enough backlight drive abilities, can making LCD, backlight is able to maintain that original light emission luminance, has effectively eliminated the smear of LCD after black plug mechanism is introduced, the situation that LCD is made to be not in splashette when showing provides good user experience.
Description
Technical field
The utility model is related to technical field of virtual reality more particularly to a kind of head-mounted displays.
Background technology
VR (english abbreviation of Virtual Reality) product can bring the experience of people's immersion, have been applied to joy
Industry-by-industries and the fields such as pleasure, education, industry.In general, system delay is a critical performance parameters for weighing VR products, system
Delay is lower, and the experience of VR products is closer to true.So in order to obtain system delay low as possible, apply on VR products
LCD screen refresh rate it is all even higher in 90Hz.Since the response time is the intrinsic characteristic of liquid crystal molecule, high refresh rate can be led
The smear of picture is seen at family of applying.In order to solve the problems, such as smear, the LCD on VR products is applied to introduce " black plug " mechanism,
I.e. backlight is only opened within the very short time of a frame picture, and between typically 5%~10%, remaining time backlight is all to close
's.That is, only in the final stage of a frame picture, backlight can just be opened after liquid crystal molecule completes overturning, in this way
Just solves the smear problem of picture.
But it introducing after " black plug " mechanism, backlight open moment, it is desirable that the brightness ratio of backlight was higher by many times originally,
The average brightness of LCD can just be made to maintain original level, could solve the problems, such as smear.
Existing backlight drive circuit does not have the driving force for providing so high backlight illumination, especially in battery capacity
In the case of low, battery capacity is lower, and the driving force of backlight drive circuit is poorer, reacts and is exactly in the display effect of LCD
User can be appreciated that screen flash sparkles, and electricity is lower, and flicker is more serious.
Utility model content
Against the above deficiency, the purpose of this utility model is to provide a kind of head-mounted display, which has foot
Enough backlight drive abilities, and it is small on the volume influence of display, it is simple in structure, it is at low cost.
To achieve the above object, the technical solution of the utility model is：
A kind of head-mounted display including power supply and LCD, is provided with backlight and the driving backlight luminescence on the LCD
Backlight drive circuit, the backlight drive circuit respectively with the backlight and the power electric connection, backlight drive electricity
The output terminal on road is equipped with energy storing members be connected electrically, for promoting driving power.
Preferred embodiment is that at least two backlight drive circuits are provided on the LCD, each backlight drive circuit
Respectively with the backlight and the power electric connection.
Preferred embodiment is that the energy storing members are ultracapacitor.
Preferred embodiment is that the anode of the ultracapacitor is electrically connected with the output terminal of the backlight drive circuit, cathode
Ground connection.
Preferred embodiment is that the backlight drive circuit is NT50273 chips.
Preferred embodiment is that the backlight includes multiple LED, and all LED are divided into multiple LED light being serially connected
Group is located at output terminals of the LED of head and the tail respectively with the backlight drive circuit in each LED light group and is electrically connected.
Preferred embodiment is that the output terminal of each backlight drive circuit is electrically connected the LED light group of identical quantity.
Preferred embodiment is to further include the microprocessor being electrically connected with the backlight drive circuit, the microprocessor output
Open and close the electric signal of the backlight.
Preferred embodiment is the shadow module that disappears being integrated in the microprocessor for eliminating the LCD smears, the shadow that disappears
Module is used for the time that the backlight is controlled to open and shine.
Preferred embodiment is that the head-mounted display is VR head-mounted displays.
After adopting the above technical scheme, the beneficial effects of the utility model are：
Due to the head-mounted display of the utility model, including power supply and LCD, backlight and the driving back of the body are provided on the LCD
The backlight drive circuit that light shines, the backlight drive circuit respectively with backlight and power electric connection, wherein backlight drive circuit
Output terminal is equipped with energy storing members be connected electrically, for promoting driving power.In use, it is beaten when backlight drive circuit receives
When opening the electric signal of backlight, the larger drive signal of output power to backlight, makes backlight moment together for output terminal and energy storing members
Send out stronger light, it is seen then that the LCD of the head-mounted display of the utility model has enough backlight drive abilities.Because of energy storing members
It is small, can recycle, make head-mounted display have it is simple in structure, it is at low cost, volume change is small the advantages of.It is and enough
Backlight drive ability, can making LCD, backlight is able to maintain that original light emission luminance, effectively eliminates after black plug mechanism is introduced
The smear of LCD, the situation that LCD is made to be not in splashette when showing provide good user experience.
Due to being provided at least two backlight drive circuits on LCD, each backlight drive circuit respectively with microprocessor, backlight
And power electric connection；Further improve the driving force of LCD backlight.
Since energy storing members are ultracapacitor；The ultracapacitor has the ability of fast charging and discharging, can be opened in backlight
The moment opened, repid discharge, auxiliary backlight driving circuit driving backlight luminescence, effectively to solve the problems, such as LCD splashettes.
Description of the drawings
Fig. 1 is the principle schematic that LCD backlight drives in the utility model head-mounted display；
Fig. 2 is the circuit diagram of head-mounted display in embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As depicted in figs. 1 and 2, a kind of head-mounted display including power supply and LCD, is provided with backlight and the driving back of the body on LCD
The backlight drive circuit of light, respectively with backlight and power electric connection, the output terminal of backlight drive circuit is equipped with backlight drive circuit
Energy storing members being connected electrically, for promoting driving power.
The head-mounted display of the utility model in use, when backlight drive circuit receives the electric signal for opening backlight,
The larger drive signal of output power to backlight, makes backlight moment send out stronger light together for its output terminal and energy storing members, it is seen then that
The LCD of the head-mounted display of the utility model has enough backlight drive abilities.Because energy storing members it is small, can recycle and make
With, make head-mounted display have it is simple in structure, it is at low cost, volume change is small the advantages of.And enough backlight drive abilities, it can make
For LCD after black plug mechanism is introduced, backlight is able to maintain that original light emission luminance, has effectively eliminated the smear of LCD, has shown LCD
Be not in the situation of splashette when showing, provide good user experience.
As shown in Fig. 2, the head-mounted display of the present embodiment is VR head-mounted displays, naturally it is also possible to wear display for other
Device.The microprocessor of VR head-mounted displays exports the electric signal for opening and closing backlight to backlight drive circuit, meanwhile, microprocessor
The shadow module that disappears for eliminating LCD smears is integrated in device, the shadow module that disappears is used to control backlight startup and backlight luminescence time,
The backlight luminescence time accounts for 5%~10% that LCD shows a frame image time.
As shown in Fig. 2, at least two backlight drive circuits are provided on the LCD of the present embodiment, preferably two backlight drives
Circuit, further, backlight drive circuit select NT50273 chips.Two panels NT50273 chips are electrically connected respectively with backlight and power supply
It connects.
For the energy storing members of the present embodiment preferentially using ultracapacitor, the capacitance of ultracapacitor is 1 farad.Two super capacitors
Device C1 and C2 and the two one-to-one settings of NT50273 chips, that is, the anode of ultracapacitor C1 and the output terminal of NT50273 chips 1
Electrical connection, cathode ground connection, ultracapacitor C2 are electrically connected with the output terminal of NT50273 chips 2, and cathode is also grounded.
The backlight of the LCD of VR head-mounted displays includes multiple LED, and all LED are divided into multiple LED light being serially connected
Group, the LED that head and the tail are located in each LED light group are electrically connected respectively with the output terminal of backlight drive circuit.In this example, in LED light group
Anode positioned at the first LED is electrically connected with the output terminal of NT50273 chips, positioned at the cathode of the LED at end and NT50273 cores
Piece is electrically connected.Further, the output terminal of each backlight drive circuit is electrically connected the LED light group of identical quantity, can uniformly drive
Dynamic LED.
As depicted in figs. 1 and 2, the present embodiment operation principle is：Microprocessor is in the final time of mono- frame pictures of LCD, general
The electric signal simultaneous transmission of backlight is opened to two NT50273 chips, the output terminal of two NT50273 chips is made to distinguish output driving
Electric signal gives corresponding backlight, meanwhile, the positive discharge of ultracapacitor C1 and C2, together with the output terminal of NT50273 chips
Transmission driving electric signal makes LED light group send out the larger light of power in moment to LED light group.When microprocessor control backlight hair
When the time of light accounts for the 5%~10% of mono- frame image times of LCD, the electric signal of transmission closing backlight gives two NT50273 chips,
Average brightness and the original brightness for making LCD are essentially identical, make the introducing of black plug mechanism, can effectively solve the problem that the smear of LCD is asked
Topic because of the problem of having enough driving forces, splashette will not occur, makes LCD have good display effect.
In conclusion the VR head-mounted displays of the present embodiment, combine ultracapacitor energy storage and working characteristics and
The working mechanism of LCD " black plug " by supercapacitor applications in the backlight drive circuit of LCD, improves backlight drive energy
Power effectively solves the problems, such as splashette；Meanwhile using multiple backlight drive circuits, further efficiently solve backlight drive
The problem of scarce capacity, the problem of preferably eliminating splashette.
The preferred embodiment of the utility model described above, is not intended to limit the utility model, all in this practicality
Any modification for being made within novel spirit and principle, etc. the improvement of same head-mounted display structure etc., should be included in
Within the scope of protection of the utility model.
Claims (10)
1. head-mounted display, including power supply and LCD, which is characterized in that backlight and the driving backlight are provided on the LCD
Luminous backlight drive circuit, the backlight drive circuit respectively with the backlight and the power electric connection, drive by the backlight
The output terminal of dynamic circuit is equipped with energy storing members be connected electrically, for promoting driving power.
2. head-mounted display according to claim 1, which is characterized in that at least two back ofs the body are provided on the LCD
Light drive circuit, each backlight drive circuit respectively with the backlight and the power electric connection.
3. head-mounted display according to claim 1, which is characterized in that the energy storing members are ultracapacitor.
4. head-mounted display according to claim 3, which is characterized in that the anode of the ultracapacitor and the backlight
The output terminal electrical connection of driving circuit, cathode ground connection.
5. head-mounted display according to claim 1, which is characterized in that the backlight drive circuit is NT50273 chips.
6. head-mounted display according to claim 2, which is characterized in that the backlight includes multiple LED, all described
LED is divided into multiple LED light groups being serially connected, be located in each LED light group the LED of head and the tail respectively with the backlight
The output terminal electrical connection of driving circuit.
7. head-mounted display according to claim 6, which is characterized in that the output terminal of each backlight drive circuit is electrically connected
Connect the LED light group of identical quantity.
8. head-mounted display according to claim 1, which is characterized in that further include and be electrically connected with the backlight drive circuit
Microprocessor, microprocessor output opens and closes the electric signal of the backlight.
9. head-mounted display according to claim 8, which is characterized in that be integrated in the microprocessor for eliminating
The shadow module that disappears of LCD smears is stated, it is described to disappear shadow module for the time that the backlight is controlled to open and shine.
10. according to claim 1 to 9 any one of them head-mounted display, which is characterized in that the head-mounted display is VR heads
Wear display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721753704.1U CN207516649U (en) | 2017-12-15 | 2017-12-15 | Head-mounted display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721753704.1U CN207516649U (en) | 2017-12-15 | 2017-12-15 | Head-mounted display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207516649U true CN207516649U (en) | 2018-06-19 |
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ID=62544108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721753704.1U Active CN207516649U (en) | 2017-12-15 | 2017-12-15 | Head-mounted display |
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| Country | Link |
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| CN (1) | CN207516649U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003585A (en) * | 2018-07-27 | 2018-12-14 | 青岛小鸟看看科技有限公司 | A kind of anti-smear circuit of liquid crystal display and a kind of liquid crystal display |
| CN109036294A (en) * | 2018-08-01 | 2018-12-18 | 重庆爱奇艺智能科技有限公司 | Screen for VR equipment puts black backlight drive circuit and VR equipment on the skin |
| CN109473068A (en) * | 2018-12-20 | 2019-03-15 | 深圳市亿境虚拟现实技术有限公司 | A kind of head-mounted display backlight black plug control circuit and control method |
| CN110658626A (en) * | 2018-06-29 | 2020-01-07 | 深圳市掌网科技股份有限公司 | Head-mounted display device |
-
2017
- 2017-12-15 CN CN201721753704.1U patent/CN207516649U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658626A (en) * | 2018-06-29 | 2020-01-07 | 深圳市掌网科技股份有限公司 | Head-mounted display device |
| CN109003585A (en) * | 2018-07-27 | 2018-12-14 | 青岛小鸟看看科技有限公司 | A kind of anti-smear circuit of liquid crystal display and a kind of liquid crystal display |
| CN109003585B (en) * | 2018-07-27 | 2020-11-20 | 青岛小鸟看看科技有限公司 | Liquid crystal screen anti-smear circuit and liquid crystal screen |
| CN109036294A (en) * | 2018-08-01 | 2018-12-18 | 重庆爱奇艺智能科技有限公司 | Screen for VR equipment puts black backlight drive circuit and VR equipment on the skin |
| CN109473068A (en) * | 2018-12-20 | 2019-03-15 | 深圳市亿境虚拟现实技术有限公司 | A kind of head-mounted display backlight black plug control circuit and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201022 Address after: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronic office building) Patentee after: GoerTek Optical Technology Co.,Ltd. Address before: 261205 Shandong province Weifang Comprehensive Bonded Zone Yuqing East Street to South High Tech two Road East Weifang Comprehensive Bonded Zone aide light industrial product processing base 1, 3, 5 workshop Patentee before: Weifang Goertek Electronics Co.,Ltd. |
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| TR01 | Transfer of patent right |