CN107993621A - A kind of width view angle switch device and switching method - Google Patents
A kind of width view angle switch device and switching method Download PDFInfo
- Publication number
- CN107993621A CN107993621A CN201711220187.6A CN201711220187A CN107993621A CN 107993621 A CN107993621 A CN 107993621A CN 201711220187 A CN201711220187 A CN 201711220187A CN 107993621 A CN107993621 A CN 107993621A
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- width
- angle
- psr
- signals
- view angle
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000000007 visual effect Effects 0.000 claims abstract description 38
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
The invention discloses a kind of width view angle switch device and switching method, the width view angle switch device includes the display control module and driver module connected by connector；The display control module includes control unit, transmitter and width angle signals handover module；The driver module includes time schedule controller and width visual angle drive module.Width view angle switch device and switching method disclosed by the invention, self refresh signal and width angle signals are controlled by control unit, on the one hand solve the problems, such as that narrow viewing angle is switched to existing charge residue or ghost during wide viewing angle, micro-control unit need not be increased in time schedule controller, and partial function need not be sacrificed；On the other hand it can ensure that system is in width view angle switch and exit PSR states, width view angle switch does not have the problem of black plug in the case of avoiding PSR；Final lifting user's vision viewing effect.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of width view angle switch device and switching method.
Background technology
Since liquid crystal display device has the advantages that frivolous, energy saving, radiationless, TV, personal electricity are now widely used for
The electronics such as brain, tablet computer, PDA (Personal Digital Assistant, personal digital assistant), mobile phone, digital camera
In equipment.
Liquid crystal display device has different operating modes, such as wide and narrow viewing angle modes etc..Liquid crystal display device is regarded from narrow
When angle is switched to wide viewing angle, the electric charge in display panel needs to switch over, and user can be in brighter picture (such as white picture)
Lower discovery charge residue or ghost, this will be so that user's vision viewing effect be poor.
In view of the above-mentioned problems, existing solution is in width view angle switch, front end is blocked by time schedule controller
System input signal is simultaneously forcibly inserted into black picture to solve.But the program there are the problem of be：It need to increase in time schedule controller
Add MCU (Micro Controller Unit, micro-control unit), and need sacrifice partial function just to can be achieved, such as：ACC
(Accurate Color Calibration, accurate colour correction) function；In addition time schedule controller is entering PSR (panel
Self Refresh, self refresh signal) after, it can not realize and be forcibly inserted into black picture, can not solve the above problems.
The content of the invention
It is a primary object of the present invention to propose a kind of width view angle switch device and switching method, it is intended to solve existing skill
Art there are the problem of.
To achieve the above object, first aspect of the embodiment of the present invention provides a kind of width view angle switch device, the width
View angle switch device includes the display control module and driver module connected by connector；
The display control module includes control unit, transmitter and width angle signals handover module；The display is driven
Dynamic model block includes time schedule controller and width visual angle drive module；
Described control unit, for when opening self refresh signal PSR, if detecting the letter of width view angle switch button
Number, then control the time schedule controller to exit PSR by the transmitter；Be additionally operable to the time schedule controller exit PSR it
Afterwards, the width angle signals handover module switching width angle signals are controlled, and the width angle signals of switching are sent to
Width visual angle drive module；It is additionally operable to after the width angle signals handover module switches width angle signals, leads to
Crossing the transmitter controls the time schedule controller to reenter PSR；
Width visual angle drive module, for receiving the width angle signals of switching, believes according to the width visual angle of switching
Number driving display panel carries out wide viewing angle and shows or narrow viewing angle is shown.
Alternatively, described control unit, is additionally operable to when opening the PSR, is cut if not detecting the width visual angle
The signal of button is changed, then maintains the width angle signals of the width angle signals handover module output.
Alternatively, described control unit, is additionally operable to when being not turned on the PSR, if detecting the width view angle switch
The signal of button, controls the width angle signals handover module switching width angle signals, and the width visual angle of switching is believed
Number it is sent to width visual angle drive module.
Alternatively, described control unit, is additionally operable to when being not turned on the PSR, if not detecting the width visual angle
The signal of switching push button, then maintain the width angle signals of the width angle signals handover module output.
Alternatively, the connector is embedded display interface signals eDP connectors.
Furthermore to achieve the above object, second aspect of the embodiment of the present invention provides a kind of width view angle switch method, described
Width view angle switch method includes step：
When opening self refresh signal PSR, if detecting the signal of width view angle switch button, controlled by transmitter
The time schedule controller exits PSR；
After the time schedule controller exits PSR, control width angle signals handover module switching width angle signals,
And the width angle signals of switching are sent to width visual angle drive module, so that the width visual angle drive module root
According to the width angle signals of switching, driving display panel progress wide viewing angle is shown or narrow viewing angle is shown；
After the width angle signals handover module switches width angle signals, by described in transmitter control
Time schedule controller reenters PSR.
Alternatively, the width view angle switch method further includes step：
When opening the PSR, if not detecting the signal of the width view angle switch button, the width is maintained
The width angle signals of angle signals handover module output.
Alternatively, the width view angle switch method further includes step：
When being not turned on the PSR, if detecting the signal of the width view angle switch button, the width visual angle is controlled
Signal switching module switches width angle signals, and the width angle signals of switching are sent to the width visual angle and drive mould
Block.
Alternatively, the width view angle switch method further includes step：
When being not turned on the PSR, if not detecting the signal of the width view angle switch button, the width is maintained
The width angle signals of narrow viewing angle signal switching module output.
Width view angle switch device and switching method provided in an embodiment of the present invention, by control unit to self refresh signal
It is controlled with width angle signals, on the one hand solves narrow viewing angle and be switched to existing charge residue or ghost during wide viewing angle
Problem, it is not necessary to increase micro-control unit in time schedule controller, and partial function need not be sacrificed；On the other hand regarded in width
Angle can ensure that system is in and exit PSR states when switching, width view angle switch does not have the problem of black plug in the case of avoiding PSR；
Final lifting user's vision viewing effect.
Brief description of the drawings
Fig. 1 is the width view angle switch apparatus structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the width view angle switch method flow schematic diagram of the embodiment of the present invention；
The width view angle switch process schematic of Fig. 3-Fig. 6 positions embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Embodiment
Describe to realize each embodiment of the present invention referring now to attached drawing.In follow-up description, using for representing member
For the suffix of such as " module ", " component " or " unit " of part only for being conducive to the explanation of the present invention, itself is not specific
Meaning.
Context is run counter to unless the context indicates otherwise or substantially, in the description of the invention in the context (particularly subsequent
Claim in) term that uses "one", " this " and similar deictic words include odd number and plural number.Unless otherwise note
Release, term "comprising", " having ", " comprising " and " containing " can be construed to expansible term.
First embodiment
Fig. 1 is the width view angle switch apparatus structure schematic diagram of the embodiment of the present invention；As shown in Figure 1, the present invention first is real
Apply example and a kind of width view angle switch device is provided, described device includes the display control module 11 connected by connector 12 and shows
Show drive module 13.
In the present embodiment, the connector is eDP (Embedded Display Port, embedded display interface letter
Number) connector.
The display control module 11 includes control unit 110, transmitter 111 and width angle signals handover module 112；
The driver module 13 includes time schedule controller 131 and width visual angle drive module 132.
Described control unit 110, for when opening self refresh signal PSR, if detecting width view angle switch button 10
Signal, then control the time schedule controller 131 to exit PSR by the transmitter 111.
In the present embodiment, control unit 110 is regarded when the display control module 11 opens PSR if detecting width
The signal of angle switching push button 10, then send and exit PSR and instruct to transmitter 111, and transmitter 111, which receives, to be exited PSR and instruct it
Afterwards, PSR instructions will move out by connector 12 and is sent to time schedule controller 131.Time schedule controller 131 successfully exit PSR it
Afterwards, feed back and successfully exit PSR information to transmitter 111, transmitter 111 will successfully exit PSR information and feeds back to control unit again
110。
Described control unit 110, is additionally operable to after the time schedule controller 131 exits PSR, controls the width visual angle
Signal switching module 112 switches width angle signals, and the width angle signals of switching are sent to the width visual angle and are driven
Module 132.
In the present embodiment, control unit 110 receives the success that transmitter 111 is sent and exits after PSR information, sends
Width angle signals switching command receives width to width angle signals handover module 112, width angle signals handover module 112
After narrow viewing angle signal switching command, switch width angle signals.
Such as：When the magnitude of voltage of width angle signals is high level, it correspond to display panel progress narrow viewing angle and show；To be low
During level, it correspond to display panel progress wide viewing angle and show；If width angle signals handover module 112 receives width visual angle letter
Before number switching command, width angle signals are low level, after width angle signals switching command is received, width visual angle
Signal is switched to high level.
After successful switch width angle signals, the information of successful switch width angle signals is fed back into control unit
110。
Further, described control unit 110, are additionally operable to, when the PSR is opened, regard if not detecting the width
The signal of angle switching push button, then the width angle signals for maintaining the width angle signals handover module 112 to export.
Described control unit 110, be additionally operable to the width angle signals handover module 112 switching width angle signals it
Afterwards, the time schedule controller 131 is controlled to reenter PSR by the transmitter 111.
In the present embodiment, after control unit 110 receives the information of successful switch width angle signals, transmission is passed through
111 control sequential controller 131 of device reenters PSR.Control process is with foregoing similar, and therefore not to repeat here.
Width visual angle drive module 132, for receiving the width angle signals of switching, according to the width visual angle of switching
The signal driving progress wide viewing angle of display panel 14 is shown or narrow viewing angle is shown.
In one embodiment, described control unit 110, are additionally operable to be not turned on PSR in the display control module 11
When, if detecting the signal of the width view angle switch button 10, control the width angle signals handover module 112 to switch width
Narrow viewing angle signal, and the width angle signals of switching are sent to width visual angle drive module 132.
In this embodiment, since the display control module 11 is not turned on PSR, control unit 110 is not to transmitter
111 are controlled, and transmitter 111 normally conveys display data to time schedule controller 131.
Further, described control unit 110, are additionally operable to when the display control module 11 is not turned on PSR, if not having
The signal of the width view angle switch button is detected, then the width for maintaining the width angle signals handover module 112 to export
Angle signals.
Width view angle switch device provided in this embodiment, by control unit to self refresh signal and width angle signals
It is controlled, on the one hand solves the problems, such as that narrow viewing angle is switched to existing charge residue or ghost during wide viewing angle, it is not necessary to
Increase micro-control unit in time schedule controller, and partial function need not be sacrificed；On the other hand can be protected in width view angle switch
Card system is in and exits PSR states, and width view angle switch does not have the problem of black plug in the case of avoiding PSR；Final lifting user
Vision viewing effect.
Second embodiment
Fig. 2 is the width view angle switch method flow schematic diagram of the embodiment of the present invention, and with reference to Fig. 2, the width visual angle is cut
Changing method includes step：
S21, when opening self refresh signal PSR, if detecting the signal of width view angle switch button, pass through transmitter
The time schedule controller is controlled to exit PSR；
S22, after the time schedule controller exits PSR, control width angle signals handover modules switching width visual angle
Signal, and the width angle signals of switching are sent to width visual angle drive module, so that the width visual angle drives
Module is according to the width angle signals of switching, and driving display panel progress wide viewing angle is shown or narrow viewing angle is shown；
S23, the width angle signals handover module switch width angle signals after, controlled by the transmitter
The time schedule controller reenters PSR.
In one embodiment, the width view angle switch method further includes step：
When opening the PSR, if not detecting the signal of the width view angle switch button, the width is maintained
The width angle signals of angle signals handover module output.
In one embodiment, the width view angle switch method further includes step：
When being not turned on the PSR, if detecting the signal of the width view angle switch button, the width visual angle is controlled
Signal switching module switches width angle signals, and the width angle signals of switching are sent to the width visual angle and drive mould
Block.
In another embodiment, the width view angle switch method further includes step：
When being not turned on the PSR, if not detecting the signal of the width view angle switch button, the width is maintained
The width angle signals of narrow viewing angle signal switching module output.
In order to more preferably illustrate the present embodiment, Fig. 3-Fig. 6 is the width view angle switch process schematic of the embodiment of the present invention, with
Lower combination Fig. 3-Fig. 6 illustrates width time-switching process：
Assuming that width view angle switch button is keyboard button；When width angle signals are high level, display panel carries out narrow
Visual angle is shown；When width angle signals are low level, display panel carries out wide viewing angle and shows.
As shown in figure 3, when PSR is not turned on, control unit is not controlled transmitter, and transmitter normally conveys display
Data are to time schedule controller.
At this time, if control unit does not detect the signal that keyboard button is pressed, width angle signals handover module dimension
Low level is held, display panel carries out wide viewing angle and shows.If control unit detects the signal that keyboard button is pressed, width visual angle letter
Number handover module output high level, display panel carry out narrow viewing angle and show and return to width angle signals to control unit successfully to cut
Change instruction.
When PSR is opened, realized by three implementation processes：
Process 1：As shown in figure 4, when PSR is opened, it is wide if control unit does not detect the signal that keyboard button is pressed
Narrow viewing angle signal switching module maintains low level, and display panel carries out wide viewing angle and shows.If control unit detects keyboard button
The signal pressed, then exit PSR by transmitter control sequential controller, and time schedule controller returns to PSR to transmitter and successfully moves back
Go out instruction, transmitter returns to PSR success exit instructions to control unit.
Process 2：As shown in figure 5, after PSR is successfully exited, width angle signals handover module output high level, display
Panel carries out narrow viewing angle and shows and return to the instruction of width angle signals successful switch to control unit.
Process 3：As shown in fig. 6, after width angle signals successful switch, then pass through transmitter control sequential controller
Into PSR, time schedule controller returns to PSR to transmitter and is successfully entered instruction, and transmitter returns to PSR to control unit and is successfully entered
Instruction.
Width view angle switch method provided in an embodiment of the present invention, by control unit to self refresh signal and width visual angle
Signal is controlled, and is on the one hand solved the problems, such as that narrow viewing angle is switched to existing charge residue or ghost during wide viewing angle, is not required to
To increase micro-control unit in time schedule controller, and partial function need not be sacrificed；On the other hand in width view angle switch
It can ensure that system is in and exit PSR states, width view angle switch does not have the problem of black plug in the case of avoiding PSR；Final lifting
User's vision viewing effect.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed, or further include as this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there are other identical element in process, method, article or equipment including the key element.
According to the embodiment of the present invention as described above, these embodiments do not have all details of detailed descriptionthe, not yet
It is only the specific embodiment to limit the invention.Obviously, as described above, can make many modifications and variations.This explanation
Book is chosen and specifically describes these embodiments, is in order to preferably explain the principle of the present invention and practical application, so that affiliated
Technical field technical staff can be used using modification of the invention and on the basis of the present invention well.The present invention is only by right
The limitation of claim and its four corner and equivalent.
Claims (9)
1. a kind of width view angle switch device, it is characterised in that the width view angle switch device includes connecting by connector
Display control module and driver module；
The display control module includes control unit, transmitter and width angle signals handover module；The display driving mould
Block includes time schedule controller and width visual angle drive module；
Described control unit, for when opening self refresh signal PSR, if detecting the signal of width view angle switch button,
The time schedule controller is controlled to exit PSR by the transmitter；It is additionally operable to after the time schedule controller exits PSR, controls
The width angle signals handover module switching width angle signals are made, and the width angle signals of switching are sent to the width
Narrow viewing angle drive module；It is additionally operable to after the width angle signals handover module switches width angle signals, by described
Transmitter controls the time schedule controller to reenter PSR；
Width visual angle drive module, for receiving the width angle signals of switching, drives according to the width angle signals of switching
Dynamic display panel progress wide viewing angle is shown or narrow viewing angle is shown.
2. a kind of width view angle switch device according to claim 1, it is characterised in that described control unit, is additionally operable to
When opening the PSR, if not detecting the signal of the width view angle switch button, the width angle signals are maintained
The width angle signals of handover module output.
3. a kind of width view angle switch device according to claim 1, it is characterised in that described control unit, is additionally operable to
When being not turned on the PSR, if detecting the signal of the width view angle switch button, the width angle signals are controlled to switch
Module switches width angle signals, and the width angle signals of switching are sent to width visual angle drive module.
4. a kind of width view angle switch device according to claim 3, it is characterised in that described control unit, is additionally operable to
When being not turned on the PSR, if not detecting the signal of the width view angle switch button, the width visual angle is maintained to believe
The width angle signals of number handover module output.
5. a kind of width view angle switch device according to claim 1, it is characterised in that the connector is embedded aobvious
Show interface signal eDP connectors.
A kind of 6. width view angle switch method, it is characterised in that the width view angle switch method includes step：
When opening self refresh signal PSR, if detecting the signal of width view angle switch button, pass through transmitter control sequential
Controller exits PSR；
After the time schedule controller exits PSR, control width angle signals handover module switching width angle signals, and will
The width angle signals of switching are sent to width visual angle drive module, so that width visual angle drive module is according to cutting
The width angle signals changed, driving display panel progress wide viewing angle is shown or narrow viewing angle is shown；
After the width angle signals handover module switches width angle signals, the sequential is controlled by the transmitter
Controller reenters PSR.
A kind of 7. width view angle switch method according to claim 6, it is characterised in that the width view angle switch method
Further include step：
When opening the PSR, if not detecting the signal of the width view angle switch button, the width visual angle is maintained
The width angle signals of signal switching module output.
A kind of 8. width view angle switch method according to claim 6, it is characterised in that the width view angle switch method
Further include step：
When being not turned on the PSR, if detecting the signal of the width view angle switch button, the width angle signals are controlled
Handover module switches width angle signals, and the width angle signals of switching are sent to width visual angle drive module.
A kind of 9. width view angle switch method according to claim 6, it is characterised in that the width view angle switch method
Further include step：
When being not turned on the PSR, if not detecting the signal of the width view angle switch button, the width is maintained to regard
The width angle signals of angle signal handover module output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711220187.6A CN107993621B (en) | 2017-11-28 | 2017-11-28 | Wide-narrow viewing angle switching device and switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711220187.6A CN107993621B (en) | 2017-11-28 | 2017-11-28 | Wide-narrow viewing angle switching device and switching method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107993621A true CN107993621A (en) | 2018-05-04 |
| CN107993621B CN107993621B (en) | 2020-09-01 |
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ID=62033821
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711220187.6A Active CN107993621B (en) | 2017-11-28 | 2017-11-28 | Wide-narrow viewing angle switching device and switching method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136664A (en) * | 2019-04-25 | 2019-08-16 | 昆山龙腾光电有限公司 | Driving circuit and liquid crystal display device |
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| JPH08221039A (en) * | 1995-02-17 | 1996-08-30 | Sony Corp | Liquid crystal display device and its driving method |
| CN106019649A (en) * | 2016-06-03 | 2016-10-12 | 京东方科技集团股份有限公司 | Display panel, display device and display method |
| CN106959807A (en) * | 2017-03-24 | 2017-07-18 | 北京小米移动软件有限公司 | View angle switch method and device |
| CN107039012A (en) * | 2017-05-23 | 2017-08-11 | 昆山龙腾光电有限公司 | A kind of time schedule controller and liquid crystal display device |
-
2017
- 2017-11-28 CN CN201711220187.6A patent/CN107993621B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08221039A (en) * | 1995-02-17 | 1996-08-30 | Sony Corp | Liquid crystal display device and its driving method |
| CN106019649A (en) * | 2016-06-03 | 2016-10-12 | 京东方科技集团股份有限公司 | Display panel, display device and display method |
| CN106959807A (en) * | 2017-03-24 | 2017-07-18 | 北京小米移动软件有限公司 | View angle switch method and device |
| CN107039012A (en) * | 2017-05-23 | 2017-08-11 | 昆山龙腾光电有限公司 | A kind of time schedule controller and liquid crystal display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136664A (en) * | 2019-04-25 | 2019-08-16 | 昆山龙腾光电有限公司 | Driving circuit and liquid crystal display device |
| CN110136664B (en) * | 2019-04-25 | 2021-06-29 | 昆山龙腾光电股份有限公司 | Drive circuit and liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107993621B (en) | 2020-09-01 |
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