CN102445327B - Method and system for measuring synchronism of 3D (three-dimensional) eyeglasses - Google Patents
Method and system for measuring synchronism of 3D (three-dimensional) eyeglasses Download PDFInfo
- Publication number
- CN102445327B CN102445327B CN201110284405.9A CN201110284405A CN102445327B CN 102445327 B CN102445327 B CN 102445327B CN 201110284405 A CN201110284405 A CN 201110284405A CN 102445327 B CN102445327 B CN 102445327B
- Authority
- CN
- China
- Prior art keywords
- glasses
- waveform
- signal
- synchronism
- wave form
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention discloses a method for measuring the synchronism of 3D (three-dimensional) eyeglasses. In the method, a waveform detection device is used for displaying the waveform of a synchronous signal and the light transmission waveform of the 3D eyeglasses controlled by the synchronous signal to measure the synchronism of the 3D eyeglasses and the synchronous signal. The method comprises the following steps that: the 3D eyeglasses open and close a shutter in response to the synchronous signal; a photosensitive element senses light rays passing through the 3D eyeglasses and transmits a sensing result to a waveform detection device; and the waveform detection device compares the sensing result of the photosensitive element with a sample waveform and/or outputs the sensing result. The invention discloses a system for measuring the synchronism of the 3D eyeglass. The system at least comprises a signal generating device, a first photosensitive device, a light source and a waveform detection device, wherein the signal generating device is used for outputting a synchronous signal to the 3D eyeglasses to be detected; an accommodating space for accommodating the 3D eyeglasses is formed between the first photosensitive device and the light source; and the waveform detection device is used for displaying, comparing and/or outputting a signal waveform obtained by using the first photosensitive device and a sample waveform.
Description
Technical field
The present invention relates to a kind of method and system of the 3D of measurement glasses synchronism.
Background technology
Watch at present the 3D glasses that 3D program is used mainly to comprise two classifications: polarized light type and shutter type.The eyeglass of shutter 3 D glasses is LCD panel, by glasses left and right eyeglass high-speed switch, switches to carry out switching right and left eye pattern image signal and reach the glasses of watching stereoeffect.When exporting to left-eye image, glasses left eyeglass lens is light transmission state, and right eye is light tight state; When exporting to eye image, glasses right eye eyeglass is light transmission state, and left eye is light tight state, with so frequent switching make eyes obtained respectively nuance image, through the synthetic secondary 3D stereo-picture that generates of brain.
In actual demonstration, due to the difference of liquid crystal display scan mode and glasses principle of work, the place replacing at right and left eyes signal, there will be left eye to see right eye signal, right eye is seen left eye signal, thereby forms crosstalking of right and left eyes, namely usually said CrossTalk.Sometimes, even if do not reach the degree of crosstalking, the poor synchronization of 3D glasses and 3D display device may cause institute's view image brightness to reduce.
For the method for this phenomenon, be to measure the conducting of LCD screen and the conducting sequential of 3D glasses with special optical measuring instrument at present, but such optical gauge expense is higher, has improved the cost that 3D glasses synchronism is measured.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of method of measuring cheaply 3D glasses synchronism.
For achieving the above object, on the one hand, the invention provides a kind of method of the 3D of measurement glasses synchronism, the method is passed through waveform with the light of 3D glasses under Wave form detector display synchronization signal waveform and this synchronizing signal control, to measure the synchronism of 3D glasses and synchronizing signal.
On the other hand, the invention provides a kind of system of the 3D of measurement glasses synchronism, this system at least comprises: signal generation apparatus, the first photosensitive device, light source and Wave form detector;
Described signal generation apparatus output synchronizing signal is to 3D glasses to be tested;
Described the first photosensitive device and light source position correspondence, be provided with the accommodation space of placing 3D glasses between the two;
Described Wave form detector connects described the first photosensitive device, shows, compares and/or the output measured signal waveform of the first photosensitive device and sample waveform.
The method that the present invention measures 3D glasses synchronism is measured the synchronism of 3D glasses and synchronizing signal by waveform by the light of synchronizing comparison signal waveform and 3D glasses, theoretical foundation maturation is easy to realize.
The system that the present invention measures 3D glasses synchronism utilizes the first photosensitive device and light source induction to obtain being placed on the 3D glasses between the two light under synchronizing signal drives by waveform, rational in infrastructure, is easy to manufacture and use, and cost is low, effective.
Accompanying drawing explanation
Fig. 1 is the method flow diagram that the present invention measures 3D glasses synchronism.
Fig. 2 is the system preferred embodiment structural representation that the present invention measures 3D glasses synchronism.
Fig. 3 is one of scope sweep result.
Fig. 4 is two of scope sweep result.
Fig. 5 is three of scope sweep result.
Embodiment
Below in conjunction with Figure of description and embodiment, the present invention is described in detail.
The method that the present invention measures 3D glasses synchronism is by waveform, to measure the synchronism of 3D glasses and synchronizing signal with the light of 3D glasses under Wave form detector display synchronization signal waveform and this synchronizing signal control.The method comprises the steps: 3D glasses response synchronizing signal and switch shutter; Photo-sensitive cell induction is sent to Wave form detector through the light of 3D glasses and by induction result; Wave form detector is compared the induction result of photo-sensitive cell and sample waveform and/or export.
Wherein, synchronizing signal is sent by 3D display device or signal generator.Synchronizing signal is the control signal of 3D glasses work, according to the frequency of synchronizing signal, makes the mutual switch right and left eyes of 3D glasses shutter.When shutter is opened, can allow light to pass through, realize 3D glasses right and left eyes and taken turns to operate.Coordinate alternately playing of 3D display device right and left eyes picture, the spectators that wear 3D glasses can see 3D picture.
The preferred adquisitiones of the first of sample waveform is the reference waveform formation sample waveform that Wave form detector has corresponding multiple synchronization signal.The regular opening and closing of 3D backlight sources of display device, the square wave that the waveform that its picture light forms is basic standard.Can in Wave form detector, store square wave corresponding to a series of frequencies, as long as know that the frequency of synchronizing signal just can select square wave under this frequency as sample waveform.Because measure the object of 3D glasses synchronism and be and measure 3D glasses right and left eyes shutter and switch and whether the synchronizeing of 3D display device right and left eyes image switching, that pays close attention to focuses on waveform position, and the height of waveform does not belong to the content of research, discussion.The zero hour of sample waveform is identical with the zero hour of synchronizing signal.
The preferred adquisitiones of the second of sample waveform is by Wave form detector connection signal generator and show that this signal generator is produced waveform and forms sample waveform.Signal generator connects 3D glasses and Wave form detector simultaneously, when controlling 3D glasses switch shutter, also makes Wave form detector show and/or the sample waveform of output for comparing.
The third preferred adquisitiones of sample waveform is the light of photo-sensitive cell induction 3D display device and induction result is sent to Wave form detector formation sample waveform.In this method, 3D display device is signal generator, when controlling 3D glasses switch shutter, also makes Wave form detector show and/or the sample waveform of output for comparing.The main application that the present invention measures the method for 3D glasses synchronism is exactly to measure the synchronism of 3D glasses and 3D display device, to guarantee that beholder can see 3D picture clear, that nothing is crosstalked, therefore by 3D display device, providing synchronizing signal and sample signal is better selection.
In order to realize said method, the system that the present invention measures 3D glasses synchronism at least comprises: signal generation apparatus, the first photosensitive device, light source and Wave form detector.
Signal generation apparatus output synchronizing signal is to 3D glasses to be tested, the right and left eyes alternation switch shutter of 3D glasses under the control of synchronizing signal.The shutter of opening allows light to pass through, and beholder is by watching the right and left eyes picture alternately presenting to realize 3D display effect.
The first photosensitive device and light source position correspondence, be provided with the accommodation space of placing 3D glasses between the two.Each target of measuring is an eyeglass, therefore uses one group of first photosensitive device and light source.If needed, two eyeglasses are measured two groups of photosensitive devices and light source can be set simultaneously simultaneously.
Wave form detector connects the first photosensitive device, shows, compares and/or the output measured signal waveform of the first photosensitive device and sample waveform.The first photosensitive device induction, by the source light of 3D glasses shutter, records light signal, shows or export measured signal waveform on Wave form detector.By comparing the position of measured signal waveform and sample waveform, judge the height of synchronism.
Signal generation apparatus can be signal generator, and the square wave of multi-frequency can occur.Signal generator forms sample waveform to Wave form detector transmitted signal, sends the switch of synchronizing signal control 3D glasses shutter to 3D glasses simultaneously.
In order to improve measurement quality, system also comprises the second photosensitive device, and signal generation apparatus is 3D display device.The second photosensitive device is arranged on the correspondence position of 3D display device, the optical information of 3D display device is sent to Wave form detector and forms sample waveform.For backlight be the 3D display device of scan-type, the second photosensitive device is arranged on the liquid crystal display upper position of 3D display device, because top is critical point; For backlight, for light the 3D display device of mode simultaneously, the second photosensitive device is arranged within the scope of the liquid crystal display of 3D display device.
Preferred embodiment one: select the 3D display device for scan-type backlight to provide synchronizing signal for 3D glasses, 3D glasses response synchronizing signal and switch shutter.A LED is placed as light source in front side at 3D glasses right side eyeglass, and rear side is placed the first photosensitive device, and the first photosensitive device is corresponding with LED position makes it can receive the LED light through 3D glasses shutter.Correspondingly, 3D display device image content is now that the black right eye of left eye is white; And place the second photosensitive device at the upside of 3D display device, the light and shade of induction 3D display device picture changes.
The first photosensitive device and the second photosensitive device are connected to respectively the oscillograph as Wave form detector.What on oscillograph screen, show is 3D glasses right eye light waveform signal and 3D display device right eye ray waveform signal through shutter under synchronizing signal simultaneously, both position relationships shown on oscillograph are exactly whether to have the test result of crosstalking, and namely whether beholder can see right eye picture at left eye when using these 3D glasses to watch this 3D display device picture.
Figure 3 shows that test result, 3D display device picture waveform signal 2 has been offset compared to 3D glasses right eye waveform signal 1, and 3D glasses left eye just has the content of right eye signal in this case, has occurred crosstalking.Solution is to adjust the driving circuit of 3D display device or 3D glasses, makes 3D display device picture waveform signal entirety be positioned at 3D glasses right eye waveform signal scope.
Preferred embodiment two: select the 3D display device for scan-type backlight to provide synchronizing signal for 3D glasses, 3D glasses response synchronizing signal and switch shutter.A LED is placed as light source in front side at 3D glasses left side eyeglass, and rear side is placed the first photosensitive device, and the first photosensitive device is corresponding with LED position makes it can receive the LED light through 3D glasses shutter.Correspondingly, 3D display device image content is now that the white right eye of left eye is black; And place the second photosensitive device at the upside of 3D display device, the light and shade of induction 3D display device picture changes.
The first photosensitive device and the second photosensitive device are connected to respectively the oscillograph as Wave form detector.What on oscillograph screen, show is 3D glasses left eye light waveform signal and 3D display device left eye ray waveform signal through shutter under synchronizing signal simultaneously, both position relationships shown on oscillograph are exactly whether to have the test result of crosstalking, and namely whether beholder can see left eye picture at right eye when using these 3D glasses to watch this 3D display device picture.
If a side of 3D display device picture waveform signal has deflected away from the scope of 3D glasses right eye waveform signal, mean and occurred crosstalking.Solution is to adjust the driving circuit of 3D display device or 3D glasses, makes 3D display device picture waveform signal entirety be positioned at 3D glasses left eye waveform signal scope.
Preferred embodiment three: select backlight for the 3D display device that lights mode provides synchronizing signal for 3D glasses simultaneously, 3D glasses response synchronizing signal and switch shutter.A LED is placed as light source in front side at 3D glasses right side eyeglass, and rear side is placed the first photosensitive device, and the first photosensitive device is corresponding with LED position makes it can receive the LED light through 3D glasses shutter.Correspondingly, 3D display device image content is now that the black right eye of left eye is white; And place the second photosensitive device in the front side of 3D display device, the light and shade of induction 3D display device picture changes.
The first photosensitive device and the second photosensitive device are connected to respectively the oscillograph as Wave form detector.What on oscillograph screen, show is 3D glasses right eye light waveform signal and 3D display device right eye ray waveform signal through shutter under synchronizing signal simultaneously, both position relationships shown on oscillograph are exactly whether to have the test result of crosstalking, and namely whether beholder can see right eye picture at left eye when using these 3D glasses to watch this 3D display device picture.
Figure 4 shows that test result, the time that the curve 2 that 3D display device picture is corresponding is opened too early, the Slope place not opening completely at the corresponding curve 1 of 3D glasses has just shown, although can't confirm successively whether the signal now deflecting away from can cause and crosstalk, but this situation causes the brightness of 3D display device to reduce to I haven't seen you for ages, display effect variation.Solution is to adjust the driving circuit of 3D display device or 3D glasses, makes 3D display device picture waveform signal 2 entirety be positioned at the centre position of 3D glasses right eye waveform 1 range of signal, as shown in Figure 5.
Preferred embodiment four: select signal generator to provide signal for 3D glasses, 3D glasses response signal and switch shutter.A LED is placed as light source in front side at 3D glasses left side eyeglass, and rear side is placed the first photosensitive device, and the first photosensitive device is corresponding with LED position makes it can receive the LED light through 3D glasses shutter.The signal that signal generator sends is the synchronizing signal of simulation 3D display device control 3D glasses, and the frequency of this signal can be set according to specific needs.
The first photosensitive device is connected to the oscillograph as Wave form detector.On oscillograph screen, show simultaneously be 3D glasses left eye under synchronizing signal through this frequency standard waveform signal storing in the light waveform signal of shutter and oscillograph, both position relationships shown on oscillograph are exactly whether to have the test result of crosstalking, and namely whether beholder can see left eye picture at right eye when using these 3D glasses to watch this 3D display device picture.
If a side of 3D display device picture waveform signal has deflected away from the scope of 3D glasses right eye waveform signal, mean and occurred crosstalking.Solution is to adjust the driving circuit of 3D display device or 3D glasses, makes 3D display device picture waveform signal entirety be positioned at 3D glasses left eye waveform signal scope.
Preferred embodiment five: select signal generator to provide signal for 3D glasses, 3D glasses response signal and switch shutter.A LED is placed as light source in front side at 3D glasses left side eyeglass, and rear side is placed the first photosensitive device, and the first photosensitive device is corresponding with LED position makes it can receive the LED light through 3D glasses shutter.The signal that signal generator sends is the synchronizing signal of simulation 3D display device control 3D glasses, and the frequency of this signal can be set according to specific needs.
The first photosensitive device and signal generator are connected to respectively the oscillograph as Wave form detector.What on oscillograph screen, show is 3D glasses left eye light waveform signal and signal generator waveform signal through shutter under synchronizing signal simultaneously, both position relationships shown on oscillograph are exactly whether to have the test result of crosstalking, and namely whether beholder can see left eye picture at right eye when using these 3D glasses to watch this 3D display device picture.
If a side of 3D display device picture waveform signal has deflected away from the scope of 3D glasses right eye waveform signal, mean and occurred crosstalking.Solution is to adjust the driving circuit of 3D display device or 3D glasses, makes 3D display device picture waveform signal entirety be positioned at 3D glasses left eye waveform signal scope.
Above; be only preferred embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (8)
1. a method of measuring 3D glasses synchronism, is characterized in that: the method is passed through waveform with the light of 3D glasses under Wave form detector display synchronization signal waveform and this synchronizing signal control, to measure the synchronism of 3D glasses and synchronizing signal; Wherein, described method comprises the steps:
3D glasses respond synchronizing signal and switch shutter;
Photo-sensitive cell induction is sent to Wave form detector through the light of 3D glasses and by induction result;
Wave form detector is compared the induction result of photo-sensitive cell and sample waveform and/or export.
2. the method for measurement 3D glasses synchronism according to claim 1, is characterized in that: described synchronizing signal is sent by 3D display device or signal generator.
3. the method for measurement 3D glasses synchronism according to claim 1, is characterized in that: the adquisitiones of described sample waveform is the reference waveform formation sample waveform that Wave form detector has corresponding multiple synchronization signal.
4. the method for measurement according to claim 2 3D glasses synchronism, is characterized in that: the adquisitiones of described sample waveform is described signal generator show that described signal generator is produced waveform formation sample waveform by Wave form detector connects.
5. the method for measurement 3D glasses synchronism according to claim 1, is characterized in that: the adquisitiones of described sample waveform is the light of photo-sensitive cell induction 3D display device and induction result is sent to Wave form detector formation sample waveform.
6. a system of measuring 3D glasses synchronism, is characterized in that, described system at least comprises: signal generation apparatus, the first photosensitive device, light source and Wave form detector;
Described signal generation apparatus output synchronizing signal is to 3D glasses to be tested;
Described the first photosensitive device and light source position correspondence, be provided with the accommodation space of placing 3D glasses between the two;
Described Wave form detector connects described the first photosensitive device, shows, compares and/or the output measured signal waveform of the first photosensitive device and sample waveform.
7. the system of measurement 3D glasses synchronism according to claim 6, is characterized in that: described system also comprises the second photosensitive device, and described signal generation apparatus is 3D display device; Described the second photosensitive device is arranged on the correspondence position of described 3D display device, the optical information of 3D display device is sent to described Wave form detector and forms sample waveform.
8. the system of measurement 3D glasses synchronism according to claim 6, is characterized in that: described signal generation apparatus is signal generator, and described signal generator forms sample waveform to described Wave form detector transmitted signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110284405.9A CN102445327B (en) | 2011-09-22 | 2011-09-22 | Method and system for measuring synchronism of 3D (three-dimensional) eyeglasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110284405.9A CN102445327B (en) | 2011-09-22 | 2011-09-22 | Method and system for measuring synchronism of 3D (three-dimensional) eyeglasses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102445327A CN102445327A (en) | 2012-05-09 |
| CN102445327B true CN102445327B (en) | 2014-05-07 |
Family
ID=46008040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110284405.9A Active CN102445327B (en) | 2011-09-22 | 2011-09-22 | Method and system for measuring synchronism of 3D (three-dimensional) eyeglasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102445327B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857784A (en) * | 2012-09-20 | 2013-01-02 | 四川长虹电器股份有限公司 | Adjusting method for matching 3-dimensional (3D) glasses and screen |
| CN103728119B (en) * | 2014-01-02 | 2016-07-13 | 青岛海信电器股份有限公司 | The test system of shutter type 3 D spectacles and method of testing thereof |
| CN106236085B (en) * | 2016-09-26 | 2019-03-08 | 中国医学科学院生物医学工程研究所 | For detecting the generating device and detection method of NEG cerebration instrument synchronism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813827A (en) * | 2010-04-07 | 2010-08-25 | 熊国强 | Infrared active-shutter type 3D spectacle system |
| CN201773222U (en) * | 2010-07-06 | 2011-03-23 | Tcl集团股份有限公司 | Liquid crystal (LC) three-dimensional (3D) glasses |
| CN102055997A (en) * | 2010-05-10 | 2011-05-11 | 骏升科技(中国)有限公司 | Learning processing method of 3D (three-dimensional) spectacles and learner |
| EP2334090A2 (en) * | 2009-12-09 | 2011-06-15 | Samsung Electronics Co., Ltd. | Shutter glasses for stereoscopic image display system |
| CN201945753U (en) * | 2011-01-11 | 2011-08-24 | 潍坊歌尔科技有限公司 | 3D (three-dimensional) glasses testing system |
-
2011
- 2011-09-22 CN CN201110284405.9A patent/CN102445327B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2334090A2 (en) * | 2009-12-09 | 2011-06-15 | Samsung Electronics Co., Ltd. | Shutter glasses for stereoscopic image display system |
| CN101813827A (en) * | 2010-04-07 | 2010-08-25 | 熊国强 | Infrared active-shutter type 3D spectacle system |
| CN102055997A (en) * | 2010-05-10 | 2011-05-11 | 骏升科技(中国)有限公司 | Learning processing method of 3D (three-dimensional) spectacles and learner |
| CN201773222U (en) * | 2010-07-06 | 2011-03-23 | Tcl集团股份有限公司 | Liquid crystal (LC) three-dimensional (3D) glasses |
| CN201945753U (en) * | 2011-01-11 | 2011-08-24 | 潍坊歌尔科技有限公司 | 3D (three-dimensional) glasses testing system |
Non-Patent Citations (2)
| Title |
|---|
| 《三维立体成像原理、拍摄及再现简述》;陈恩言等;《电视工程》;20100930(第3期);第25-30页 * |
| 陈恩言等.《三维立体成像原理、拍摄及再现简述》.《电视工程》.2010,(第3期),第25-30页. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102445327A (en) | 2012-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102300108B (en) | Data modulation method and liquid crystal display device using the same | |
| US9118909B2 (en) | Stereoscopic image display and driving method thereof | |
| CN102238402B (en) | Apparatus and method for driving liquid crystal display device | |
| KR101282957B1 (en) | Method and apparatus for measuring optical of stereoscopic display device | |
| US8902502B2 (en) | Stereoscopic image display apparatus and method of driving the same | |
| KR101753801B1 (en) | Liquid crystal display device and driving method for thereof | |
| KR101310383B1 (en) | Stereoscopic Image Display Device | |
| TWI441126B (en) | Stereoscopic image display device | |
| CN102663983B (en) | 3D (three-dimensional) overvoltage confirming method, LCD (Liquid Crystal Display) driving method, LCD system and television | |
| CN101867836A (en) | Image display device | |
| CN102236196B (en) | Stereoscopic image display and method for driving the same | |
| CN102445327B (en) | Method and system for measuring synchronism of 3D (three-dimensional) eyeglasses | |
| CN105280148A (en) | Three dimensional liquid crystal display device and method for driving the same | |
| CN102760418A (en) | Stereoscopic image display device and method for driving the same | |
| CN102789062A (en) | Stereoscopic image display device using pattern retarder method and method for fabricating the same | |
| CN102647608B (en) | Stereoscopic image display and crosstalk compensation method thereof | |
| CN102184711B (en) | Backlight driving method and backlight driving device | |
| CN104253987B (en) | Stereoscopic image display and driving method thereof | |
| CN102638690B (en) | Wide-view-angle intelligent 3D (Three-Dimensional) display and wide-view-angle intelligent 3D display method | |
| KR101895014B1 (en) | Method for evaluating 3d crosstalk on stereoscopic image display and system for evaluating 3d crosstalk on the same | |
| CN201945753U (en) | 3D (three-dimensional) glasses testing system | |
| CN210089621U (en) | Bulge deformation size measuring instrument for pressure-bearing special equipment | |
| CN104683796A (en) | Evaluation method and device for 3D display crosstalk rate | |
| KR101808343B1 (en) | Stereoscopic image display device | |
| GB2481664A (en) | Frame data modulation for reducing luminance variations in stereoscopic displays |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Video Technology Co., Ltd Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE ELECTRIC Co.,Ltd. |