CN107144989A - A kind of width view angle switch module and liquid crystal display device - Google Patents
A kind of width view angle switch module and liquid crystal display device Download PDFInfo
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- CN107144989A CN107144989A CN201710418062.8A CN201710418062A CN107144989A CN 107144989 A CN107144989 A CN 107144989A CN 201710418062 A CN201710418062 A CN 201710418062A CN 107144989 A CN107144989 A CN 107144989A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
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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
- G09G3/3611—Control of matrices with row and column drivers
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- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of width view angle switch module and liquid crystal display device, the width view angle switch module includes connector, signal processor and time schedule controller；Display interface signals and power supply signal are exported to the time schedule controller by the connector；Width viewing angle control signal is exported to the signal processor by the connector；The signal processor receives the width viewing angle control signal, and according to the width viewing angle control signal behavior wide viewing angle code or narrow viewing angle code, the wide viewing angle code or narrow viewing angle code of selection are exported to the time schedule controller；The time schedule controller receives wide viewing angle code or narrow viewing angle code and exported to display panel.Width view angle switch module disclosed by the invention and liquid crystal display device, image quality and the width view angle switch time at width visual angle are taken into account, avoid time schedule controller PSR signals open after, the power-off restarting of time schedule controller and the problem of long switching time during width view angle switch.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of width view angle switch module and liquid crystal display dress
Put.
Background technology
There is frivolous, energy-conservation due to liquid crystal display device, it is radiationless many advantages, such as, be now widely used for TV, individual
In the electronic equipments such as people's computer, tablet personal computer, personal digital assistant (PDA), mobile phone, digital camera.Liquid crystal display device has
Different mode of operations, such as 6/8bit show or width visual angle display pattern.For example user is filled using liquid crystal display
When thinking that leniently field-of-view mode switches to narrow viewing angle pattern when putting, or user is want when using liquid crystal display device from narrow viewing angle mould
When formula switches to wide viewing angle pattern, be required for shutdown switch over after and restart liquid crystal display device and could realize, with up to
To make it that the information shown in liquid crystal display device is protected, it is to avoid the leakage of privacy or business information, or enter row information
The purpose shared.
During the present invention is realized, inventor has found that prior art has problems with：Open self refresh signal
When (Panel Self Refresh, PSR) function enters row wide-narrow view angle switch, in order to which the image quality for meeting wide viewing angle/narrow viewing angle will
Ask, it is necessary to switch different display codes at width visual angle；Occur that time schedule controller enters in switching shows coding process
Row power-off restarting, the problem of causing width view angle switch overlong time.
The content of the invention
It is a primary object of the present invention to propose a kind of width view angle switch module and liquid crystal display device, it is intended to solve existing
There is technology when unlatching self refresh signal (Panel Self Refresh, PSR) function enters row wide-narrow view angle switch, it is impossible to simultaneously
The problem of taking into account image quality requirement and the width view angle switch time of wide viewing angle/narrow viewing angle.
To achieve the above object, first aspect of the embodiment of the present invention provides a kind of width view angle switch module, the width
View angle switch module includes connector, signal processor and time schedule controller；
Display interface signals and power supply signal are exported to the time schedule controller by the connector；
Width viewing angle control signal is exported to the signal processor by the connector；
The signal processor receives the width viewing angle control signal, wide according to the width viewing angle control signal behavior
Visual angle code or narrow viewing angle code, the wide viewing angle code or narrow viewing angle code of selection are exported to the time schedule controller；
The time schedule controller receives wide viewing angle code or narrow viewing angle code and exported to display panel.
Further, the signal processor include first switch, second switch, handover module, wide viewing angle control module,
Narrow viewing angle control module and output module；
The input of the first switch is connected with the wide viewing angle control module, the output end of the first switch and institute
Output module is stated, the control end of the first switch is connected with the handover module；
The input of the second switch is connected with the narrow viewing angle control module, the output end of the second switch and institute
Output module is stated, the control end of the second switch is connected with the handover module；
The handover module, for controlling the first switch or described second according to the width viewing angle control signal
The conducting and disconnection of switch；
The wide viewing angle control module, for storing wide viewing angle code, and in first switch conducting and described second
After switching off, the wide viewing angle code of storage is exported to the output module；
The narrow viewing angle control module, disconnects and described second for storing narrow viewing angle code, and in the first switch
After switch conduction, the narrow viewing angle code of storage is exported to the output module；
The output module, for receiving wide viewing angle code or narrow viewing angle code and exporting to the time schedule controller.
Further, if the width viewing angle control signal is the first level, the handover module control described first is opened
Close and turn on and control the second switch to disconnect；
If the width viewing angle control signal is second electrical level, the handover module controls the first switch to disconnect and control
Make the second switch conducting.
Further, first level is low level, and the second electrical level is high level；Or first level is height
Level, the second electrical level is low level.
Further, the output module, is additionally operable to receive wide viewing angle code or narrow viewing angle code, the width of reception is regarded
Angle code or narrow viewing angle code conversion for standard I2C agreements wide viewing angle code or narrow viewing angle code and export to it is described when
Sequence controller.
Further, the width view angle switch module also includes memory；
The memory, for storing wide viewing angle code, and after time schedule controller startup, the width of storage is regarded
Angle code is exported to the time schedule controller.
Further, the memory includes electricallyerasable ROM (EEROM) or flash memory.
Further, the display interface signals include Low Voltage Differential Signal, minimize differential signal transmission or, it is embedded
Display interface signals.
Further, the first switch and the second switch include mos field effect transistor,
Triode.
In addition, to achieve the above object, second aspect of the embodiment of the present invention provides a kind of liquid crystal display device, the liquid crystal
Display device includes the width view angle switch module described in display panel and first aspect.
Width view angle switch module provided in an embodiment of the present invention and liquid crystal display device, select wide by signal processor
Visual angle code or narrow viewing angle code are exported to time schedule controller, and are exported by time schedule controller to display panel；Width is taken into account
The image quality of narrow viewing angle and width view angle switch time, it is to avoid in self refresh signal (the Panel Self of time schedule controller
Refresh, PSR) open after, the power-off restarting of time schedule controller and switching time long ask during width view angle switch
Topic.
Brief description of the drawings
Fig. 1 is the width view angle switch modular structure schematic diagram of the embodiment of the present invention；
Fig. 2 is signal processor structure schematic diagram in the width view angle switch module of the embodiment of the present invention；
Fig. 3 is the clock signal structural representation of the width view angle switch module of the embodiment of the present invention；
Fig. 4 is the width view angle switch schematic flow sheet of the embodiment of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
The present invention is more fully described hereinafter with reference to accompanying drawing.In various figures, identical element is using similar attached
Icon is remembered to represent.For the sake of clarity, the various pieces in accompanying drawing are not necessarily to scale.In addition, may not show in figure
Go out some known parts.
It describe hereinafter many specific details of the present invention, structure, material, size, the processing work of such as device
Skill and technology, to be more clearly understood that the present invention.But just as the skilled person will understand, it can not press
The present invention is realized according to these specific details.
First embodiment
As shown in figure 1, first embodiment of the invention provides a kind of width view angle switch module, the width view angle switch mould
Block includes connector, signal processor and time schedule controller；
Display interface signals and power supply signal are exported to the time schedule controller by the connector；
In this example it is shown that interface signal may include Low Voltage Differential Signal (Low-Voltage Differential
Signaling, LVDS), minimize differential signal transmission (Transition Minimized Differential
Signaling, TMDS), embedded display interface signals (Embedded DisplayPort, eDP).
Width visual angle (Hybrid Viewing Angle, HVA, also referred to as mix visual angle) control signal passes through described
Connector is exported to the signal processor；
In the present embodiment, the width viewing angle control signal exported by the connector is high level (H) or low level
(L), the width viewing angle control signal of acquiescence output is low level (L).
The signal processor receives the width viewing angle control signal, and the signal processor is controlled according to the width visual angle
Signal behavior wide viewing angle code or narrow viewing angle code processed, the wide viewing angle code or narrow viewing angle code of selection are exported to described
Time schedule controller；
It refer to shown in Fig. 2, in the present embodiment, the signal processor includes first switch T1, second switch T2, cut
Change the mold block, wide viewing angle control module, narrow viewing angle control module and output module；
The input of the first switch T1 is connected with the wide viewing angle control module, the output end of the first switch T1
With the output module, the control end of the first switch T1 is connected with the handover module；
The input of the second switch T2 is connected with the narrow viewing angle control module, the output end of the second switch T2
With the output module, the control end of the second switch T2 is connected with the handover module；
The handover module, for controlling the first switch T1 or described the according to the width viewing angle control signal
Two switch T2 conducting and disconnection；
Specifically, if the width viewing angle control signal is low level, the handover module controls the first switch T1
Turn on and control the second switch T2 to disconnect；
If the width viewing angle control signal is high level, the handover module controls the first switch T1 to disconnect and control
Make the second switch T2 conductings.
If it should be noted that when the width viewing angle control signal is high level, handover module control described the
One switch T1 is turned on and is controlled the second switch T2 to disconnect；If the width viewing angle control signal is low level, the switching
Module controls the first switch T1 to disconnect and controls the second switch T2 to turn on, and is also feasible.
In the present embodiment, the first switch and the second switch include metal oxide semiconductor field effect transistor
Pipe, triode.It is N-type mos field effect transistor with the first switch T1 and the second switch T2
Exemplified by, first switch T1 control end is grid, and first switch T1 input is drain electrode, and first switch T1 output end is source
Pole；Second switch T2 control end is grid, and second switch T2 input is drain electrode, and second switch T2 output end is source
Pole.
The wide viewing angle control module, for storing wide viewing angle code, and in first switch T1 conductings and described the
After two switch off, the wide viewing angle code of storage is exported to the output module；
In the present embodiment, the wide viewing angle code of storage includes but is not limited under wide viewing angle gamma electric voltage (Gamma), from
Adaptive color control (Adaptive Color Control, Acc), frame frequency FREQUENCY CONTROL (Frame Rate Control,
FRC), Motion estimation and compensation (Motion Estimate and Motion Compensation, MEMC), extension frequency
Spectrum control (Spread Spectrum Control, SSC), dynamic backlight control (Dynamic Backlight Control,
DBC), black frame insertion (Black Frame Insertion, BFI), unlimited dye technology (Infinity Color
Technology, ICT) etc. data.
The narrow viewing angle control module, disconnects and described second for storing narrow viewing angle code, and in the first switch
Switch after T2 conductings, the narrow viewing angle code of storage is exported to the output module；
In the present embodiment, the narrow viewing angle code of storage may include gamma electric voltage (Gamma), the adaptive color under narrow viewing angle
Coloured silk control (Adaptive Color Control, Acc), frame frequency FREQUENCY CONTROL (Frame Rate Control, FRC), motion
Estimation and motion compensation (Motion Estimate and Motion Compensation, MEMC), spread-spectrum are controlled
(Spread Spectrum Control, SSC), dynamic backlight control (Dynamic Backlight Control, DBC), black
Frame insertion (Black Frame Insertion, BFI), unlimited dye technology (Infinity Color Technology, ICT)
Etc. data.
The output module, for receiving wide viewing angle code or narrow viewing angle code and exporting to the time schedule controller.
In the present embodiment, the output module receives wide viewing angle code or narrow viewing angle code, by the wide viewing angle of reception
Code or narrow viewing angle code conversion are the wide viewing angle code or narrow viewing angle code of standard I2C agreements and exported to the sequential
Controller.For example exported by I2C buses (SCL, SDA) to the time schedule controller.
The time schedule controller receives wide viewing angle code or narrow viewing angle code and exported to display panel.
Further, can be referring again to shown in Fig. 1, the width view angle switch module also includes memory；
The memory, for storing wide viewing angle code, and after time schedule controller startup, the width of storage is regarded
Angle code is exported to the time schedule controller.
In the present embodiment, memory can be electricallyerasable ROM (EEROM) (Electrically Erasable
Programmable Read-Only Memory, EEPROM) or flash memory (Flash Memory).
For example：When power supply signal is exported to the time schedule controller by the connector, time schedule controller gets electricity
Source simultaneously starts；Width viewing angle control signal (low level signal of acquiescence) is exported to the signal transacting by the connector
Device；Now time schedule controller reads the wide viewing angle code of memory storage from memory；After reading wide viewing angle code export to
Display panel.
It refer to shown in Fig. 3, Fig. 3 is width viewing angle control signal, backlight signal (BL_ON) and display panel signal
(Display) the clock signal structure chart between.
Wherein, when width viewing angle control signal (HVA) is low level, time schedule controller is exported to be regarded to display panel for width
Angle code；When width viewing angle control signal is high level, it is narrow viewing angle code that time schedule controller, which is exported to display panel,；In figure
The B moment be the width view angle switch moment.
Wherein, when backlight signal (BL_ON) is high level, backlight open, on the contrary close.The A moment in figure closes for backlight
Close the moment, the D moment is the backlight open moment.
Wherein, when display panel signal (Display) is high level, display panel is opened, otherwise is closed.During C in figure
Carve display panel start-up time.
There is following relation between three signals：
1、T1>0, wherein T1 are to have to earlier than width visual angle the time that the difference at B moment and A moment, i.e. backlight are closed
Start the time of switching, it is to avoid output abnormality signal during width view angle switch；
2、T2>=N*t1, wherein T2 are that the difference at C moment and B moment, i.e. signal processor export N to time schedule controller
The time that the time N*t1 that individual data need, wherein t1 need for one data of output；
3、T3>0, wherein T3 are the difference at D moment and C moment, i.e. the display panel opening time has to open earlier than backlight
The time opened.
For a better understanding of the present invention, illustrated below in conjunction with Fig. 4, time schedule controller hardware address is assumed in Fig. 4
For 0xC2, the wide viewing angle control module initial address of time schedule controller is 0x92D0, the narrow viewing angle control module of time schedule controller
Initial address is 0x112D0, it is necessary to which the Gamma values of write-in are 14 groups of Gamma values.Width view angle switch step includes：
Step 1, the input HVA signals at connector；
If step 2, HVA signals are low level, signal processor addressing time schedule controller hardware address 0xC2, and address
The wide viewing angle control module initial address 0x92D0 of time schedule controller, signal processor writes 14 groups since initial address
Gamma values, time schedule controller produces corresponding Gamma magnitudes of voltage and exported to display panel；
If step 3, HVA signals are high level, signal processor addressing time schedule controller hardware address 0xC2, and address
The narrow viewing angle control module initial address 0x112D0 of time schedule controller, signal processor writes 14 groups since initial address
Gamma values, time schedule controller produces corresponding Gamma magnitudes of voltage and exported to display panel.
Width view angle switch module provided in an embodiment of the present invention, wide viewing angle code or narrow is selected by signal processor
Visual angle code is exported to time schedule controller, and is exported by time schedule controller to display panel；Taken into account width visual angle image quality and
The width view angle switch time, it is to avoid open it in the self refresh signal (Panel Self Refresh, PSR) of time schedule controller
Afterwards, the power-off restarting of time schedule controller and the problem of long switching time during width view angle switch.
Second embodiment
Second embodiment of the invention provides a kind of liquid crystal display device, and the liquid crystal display device includes display panel and width
Narrow viewing angle handover module；
With first embodiment identical, the width view angle switch module includes connector, signal processor and sequential control
Device processed；
Display interface signals and power supply signal are exported to the time schedule controller by the connector；
In this example it is shown that interface signal may include Low Voltage Differential Signal (Low-Voltage Differential
Signaling, LVDS), minimize differential signal transmission (Transition Minimized Differential
Signaling, TMDS), embedded display interface signals (Embedded DisplayPort, eDP).
Width visual angle (Hybrid Viewing Angle, HVA, also referred to as mix visual angle) control signal passes through described
Connector is exported to the signal processor；
In the present embodiment, the width viewing angle control signal exported by the connector is high level (H) or low level
(L), the width viewing angle control signal of acquiescence output is low level (L).
The signal processor receives the width viewing angle control signal, wide according to the width viewing angle control signal behavior
Visual angle code or narrow viewing angle code, the wide viewing angle code or narrow viewing angle code of selection are exported to the time schedule controller；
In the present embodiment, the signal processor includes first switch T1, second switch T2, handover module, wide viewing angle
Control module, narrow viewing angle control module and output module；
The input of the first switch T1 is connected with the wide viewing angle control module, the output end of the first switch T1
With the output module, the control end of the first switch T1 is connected with the handover module；
The input of the second switch T2 is connected with the narrow viewing angle control module, the output end of the second switch T2
With the output module, the control end of the second switch T2 is connected with the handover module；
The handover module, for controlling the first switch T1 or described the according to the width viewing angle control signal
Two switch T2 conducting and disconnection；
Specifically, if the width viewing angle control signal is low level, the handover module controls the first switch T1
Turn on and control the second switch T2 to disconnect；
If the width viewing angle control signal is high level, the handover module controls the first switch T1 to disconnect and control
Make the second switch T2 conductings.
If it should be noted that when the width viewing angle control signal is high level, handover module control described the
One switch T1 is turned on and is controlled the second switch T2 to disconnect；If the width viewing angle control signal is low level, the switching
Module controls the first switch T1 to disconnect and controls the second switch T2 to turn on, and is also feasible.
In the present embodiment, the first switch and the second switch include metal oxide semiconductor field effect transistor
Pipe, triode.It is N-type mos field effect transistor with the first switch T1 and the second switch T2
Exemplified by, first switch T1 control end is grid, and first switch T1 input is drain electrode, and first switch T1 output end is source
Pole；Second switch T2 control end is grid, and second switch T2 input is drain electrode, and second switch T2 output end is source
Pole.
The wide viewing angle control module, for storing wide viewing angle code, and in first switch T1 conductings and described the
After two switch off, the wide viewing angle code of storage is exported to the output module；
In the present embodiment, the wide viewing angle code of storage includes but is not limited under wide viewing angle gamma electric voltage (Gamma), from
Adaptive color control (Adaptive Color Control, Acc), frame frequency FREQUENCY CONTROL (Frame Rate Control,
FRC), Motion estimation and compensation (Motion Estimate and Motion Compensation, MEMC), extension frequency
Spectrum control (Spread Spectrum Control, SSC), dynamic backlight control (Dynamic Backlight Control,
DBC), black frame insertion (Black Frame Insertion, BFI), unlimited dye technology (Infinity Color
Technology, ICT) etc. data.
The narrow viewing angle control module, disconnects and described second for storing narrow viewing angle code, and in the first switch
Switch after T2 conductings, the narrow viewing angle code of storage is exported to the output module；
In the present embodiment, the narrow viewing angle code of storage may include gamma electric voltage (Gamma), the adaptive color under narrow viewing angle
Coloured silk control (Adaptive Color Control, Acc), frame frequency FREQUENCY CONTROL (Frame Rate Control, FRC), motion
Estimation and motion compensation (Motion Estimate and Motion Compensation, MEMC), spread-spectrum are controlled
(Spread Spectrum Control, SSC), dynamic backlight control (Dynamic Backlight Control, DBC), black
Frame insertion (Black Frame Insertion, BFI), unlimited dye technology (Infinity Color Technology, ICT)
Etc. data.
The output module, for receiving wide viewing angle code or narrow viewing angle code and exporting to the time schedule controller.
In the present embodiment, the output module receives wide viewing angle code or narrow viewing angle code, by the wide viewing angle of reception
Code or narrow viewing angle code conversion are the wide viewing angle code or narrow viewing angle code of standard I2C agreements and exported to the sequential
Controller.For example exported by I2C buses (SCL, SDA) to the time schedule controller.
The time schedule controller receives wide viewing angle code or narrow viewing angle code and exported to the display panel.
Further, the width view angle switch module also includes memory；
The memory, for storing wide viewing angle code, and after time schedule controller startup, the width of storage is regarded
Angle code is exported to the time schedule controller.
In the present embodiment, memory can be electricallyerasable ROM (EEROM) (Electrically Erasable
Programmable Read-Only Memory, EEPROM) or flash memory (Flash Memory).
For example：When power supply signal is exported to the time schedule controller by the connector, time schedule controller gets electricity
Source simultaneously starts；Width viewing angle control signal (low level signal of acquiescence) is exported to the signal transacting by the connector
Device；Now time schedule controller reads the wide viewing angle code of memory storage from memory；After reading wide viewing angle code export to
Display panel.
It refer to shown in Fig. 3, Fig. 3 is width viewing angle control signal, backlight signal (BL_ON) and display panel signal
(Display) the clock signal structure chart between.
Wherein, when width viewing angle control signal (HVA) is low level, time schedule controller is exported to be regarded to display panel for width
Angle code；When width viewing angle control signal is high level, it is narrow viewing angle code that time schedule controller, which is exported to display panel,；In figure
The B moment be the width view angle switch moment.
Wherein, when backlight signal (BL_ON) is high level, backlight open, on the contrary close.The A moment in figure closes for backlight
Close the moment, the D moment is the backlight open moment.
Wherein, when display panel signal (Display) is high level, display panel is opened, otherwise is closed.During C in figure
Carve display panel start-up time.
There is following relation between three signals：
1、T1>0, wherein T1 are to have to earlier than width visual angle the time that the difference at B moment and A moment, i.e. backlight are closed
Start the time of switching, it is to avoid output abnormality signal during width view angle switch；
2、T2>=N*t1, wherein T2 are that the difference at C moment and B moment, i.e. signal processor export N to time schedule controller
The time that the time N*t1 that individual data need, wherein t1 need for one data of output；
3、T3>0, wherein T3 are the difference at D moment and C moment, i.e. the display panel opening time has to open earlier than backlight
The time opened.
Liquid crystal display device provided in an embodiment of the present invention, wide viewing angle code or narrow viewing angle are selected by signal processor
Code is exported to time schedule controller, and is exported by time schedule controller to display panel；The image quality and width at width visual angle are taken into account
The view angle switch time, it is to avoid after the self refresh signal (Panel Self Refresh, PSR) of time schedule controller is opened,
The power-off restarting of time schedule controller and the problem of long switching time during width view angle switch.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being 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 is other identical element in process, method, article or equipment including the key element.
According to embodiments of the invention as described above, these embodiments do not have all details of detailed descriptionthe, not yet
It is only described specific embodiment to limit the invention.Obviously, as described above, it can make many modifications and variations.This explanation
Book is chosen and specifically describes these embodiments, is in order to preferably explain the principle and practical application of the present invention, 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 (10)
1. a kind of width view angle switch module, the width view angle switch module includes connector, signal processor and sequential control
Device processed；
Display interface signals and power supply signal are exported to the time schedule controller by the connector；
Width viewing angle control signal is exported to the signal processor by the connector；
The signal processor receives the width viewing angle control signal, according to the width viewing angle control signal behavior wide viewing angle
Code or narrow viewing angle code, the wide viewing angle code or narrow viewing angle code of selection are exported to the time schedule controller；
The time schedule controller receives wide viewing angle code or narrow viewing angle code and exported to display panel.
2. width view angle switch module according to claim 1, it is characterised in that the signal processor is opened including first
Pass, second switch, handover module, wide viewing angle control module, narrow viewing angle control module and output module；
The input of the first switch is connected with the wide viewing angle control module, the output end of the first switch with it is described defeated
Go out module, the control end of the first switch is connected with the handover module；
The input of the second switch is connected with the narrow viewing angle control module, the output end of the second switch with it is described defeated
Go out module, the control end of the second switch is connected with the handover module；
The handover module, for controlling the first switch or the second switch according to the width viewing angle control signal
Conducting and disconnection；
The wide viewing angle control module, for storing wide viewing angle code, and in first switch conducting and the second switch
After disconnection, the wide viewing angle code of storage is exported to the output module；
The narrow viewing angle control module, disconnects and the second switch for storing narrow viewing angle code, and in the first switch
After conducting, the narrow viewing angle code of storage is exported to the output module；
The output module, for receiving wide viewing angle code or narrow viewing angle code and exporting to the time schedule controller.
3. width view angle switch module according to claim 2, it is characterised in that
If the width viewing angle control signal is the first level, the handover module controls the first switch to turn on and control institute
State second switch disconnection；
If the width viewing angle control signal is second electrical level, the handover module controls the first switch to disconnect and control institute
State second switch conducting.
4. width view angle switch module according to claim 3, it is characterised in that first level is low level, institute
Second electrical level is stated for high level；Or
First level is high level, and the second electrical level is low level.
5. width view angle switch module according to claim 2, it is characterised in that the output module, is additionally operable to receive
Wide viewing angle code or narrow viewing angle code, are standard I2C agreements by the wide viewing angle code or narrow viewing angle code conversion of reception
Wide viewing angle code or narrow viewing angle code are simultaneously exported to the time schedule controller.
6. according to any described width view angle switch modules of claim 1-5, it is characterised in that the width view angle switch mould
Block also includes memory；
The memory, for storing wide viewing angle code, and after time schedule controller startup, by the wide viewing angle generation of storage
Code is exported to the time schedule controller.
7. width view angle switch module according to claim 7, it is characterised in that the memory includes electric erasable only
Read memory or flash memory.
8. according to any described width view angle switch modules of claim 1-5, it is characterised in that the display interface signals bag
Include Low Voltage Differential Signal, minimize differential signal transmission or, embedded display interface signals.
9. according to any described width view angle switch modules of claim 1-5, it is characterised in that the first switch and described
Second switch includes mos field effect transistor, triode.
10. a kind of liquid crystal display device, the liquid crystal display device includes display panel and any described width of claim 1-9
Narrow viewing angle handover module.
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