CN209118740U - Display device - Google Patents
Display device Download PDFInfo
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- CN209118740U CN209118740U CN201821423002.1U CN201821423002U CN209118740U CN 209118740 U CN209118740 U CN 209118740U CN 201821423002 U CN201821423002 U CN 201821423002U CN 209118740 U CN209118740 U CN 209118740U
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- 230000001105 regulatory effect Effects 0.000 claims description 63
- 230000005611 electricity Effects 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 230000005669 field effect Effects 0.000 description 6
- 229910044991 metal oxide Inorganic materials 0.000 description 6
- 150000004706 metal oxides Chemical class 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- 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)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The utility model provides a display device, include: a display panel; the voltage generating unit comprises a first input line, a second input line, a first output line and a second output line, wherein the first output line and the second output line are electrically coupled with the display panel; the power supply module is connected with the first input line and the second input line, and provides a first voltage for the first input line and a second voltage for the second input line; the control unit is connected with the power supply module and provides a control signal; when the power supply module obtains the control signal, the power supply module provides the first voltage and the second voltage with different voltage differences, and the voltage generation unit outputs the corresponding first voltage and the second voltage, so that the switching operation of the display device between a normal operation mode and a test operation mode can be simplified.
Description
Technical field
The utility model relates to a kind of voltage regulation techniques, in particular to a kind of adjusting voltage is transported in normal operation and test
Display device between work.
Background technique
In display, for system board by connection to control panel (Control Board, C-Board), control panel is logical
It crosses such as flexible flat cable (Flexible Flat Cable, FFC) and connects printed circuit board (PCB), printed circuit board passes through again
Source electrode flip chip (Source-Chip on Film, S-COF) and grid flip chip (Gate-Chip on Film, G-
COF it) is connect with viewing area.Display driving method include: system board by color (such as: R/G/B) compressed signal, control are believed
Number and power delivery to control panel.Signal is transmitted to source after timing unit (Timing Controller, TCON) processing
Pole driving circuit (Source Driver) and gate driving circuit (Gate Driver).Pass through relevant integrated circuit or chip
By the data of necessity and power delivery in viewing area, so that display obtains power supply, the signal that picture demand is presented.
Since product has error of behaviour, ageing management generally will do it come the product of debugging, with " bathtub curve "
(Bathtub curve, also known as failure rate characteristic or U-shaped curve) signal, failure are divided into the stage: early fault period, random failure
Phase, catastrophe failure phase.However, after the general finished product of product will direct goods dispatch to respective vendor, therefore be less susceptible to as control
The bad products of early fault period.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of the utility model is to provide a kind of display devices, transport by switching
Make module or power supply line to switch the operating voltage of operating mode.
It the purpose of this utility model and solves its technical problem and adopts the following technical solutions to realize.It is practical according to this
A kind of display device of novel proposition, comprising: display panel；Voltage generating unit, including the first incoming line, the second input line
Described in road, the first outlet line and the second outlet line, first outlet line and the second outlet line electric property coupling
Display panel；Power module, connects first incoming line and second incoming line, and the power module provides first
Voltage provides second voltage in second incoming line in first incoming line；Control unit connects the power supply mould
Block, and control signal is provided；Wherein, first outlet line exports the first voltage, the second outlet line output
The second voltage, when the power module acquirement control signal is the first current potential, the power module provides first electricity
It is the first pressure difference between pressure and the second voltage, when the power module acquirement control signal is the second current potential, the power supply
It is the second pressure difference between the first voltage and the second voltage that module, which provides,.First outlet line and described second defeated
Circuit output corresponds to the first voltage and described second on first incoming line and second incoming line out
Voltage.
The utility model solves its technical problem also following technical measures can be used to further realize.
In an embodiment of the utility model, the power module includes power supply unit and switch unit；The power supply
Unit provides the first start voltage and the second start voltage of different voltage value；First regulating circuit and second pressure regulation
Circuit is set between the input terminal of the switch unit and the power supply unit, the output end electric property coupling of the switch unit
First incoming line and second incoming line；It is described when the switch unit acquirement control signal is the first current potential
Power supply unit, first regulating circuit are connected to the voltage generating unit, the first regulating circuit conversion described first
Start voltage and second start voltage are the first voltage and the second voltage for having first pressure difference, described to cut
It changes unit and obtains control signal when being the second current potential, the power supply unit, second regulating circuit and the voltage generate single
Member connection, second regulating circuit converts first start voltage and second start voltage is to have second pressure difference
The first voltage and the second voltage.
In an embodiment of the utility model, the switch unit includes first switch group and second switch group, described
The output end of first switch group connects first incoming line；The output end connection of the second switch group second input
Route；Each switching group includes first switch and second switch；The input terminal of the first switch of each switching group connects institute
State the first regulating circuit；The input terminal of the second switch of each switching group connects second regulating circuit；Each switch
The first switch of group and the control terminal of the second switch are dissimilar polarities and are coupled to described control unit.
In an embodiment of the utility model, first regulating circuit and second regulating circuit respectively include two
Resistance circuit；Two resistance circuit of first regulating circuit is configured at the input of the first switch of each switching group
End；Two resistance circuit of second regulating circuit is configured at the input terminal of the second switch of each switching group.
In an embodiment of the utility model, the resistance value of the resistance circuit of the first switch connection is higher than described second
Switch the resistance value of the resistance circuit of connection.
In an embodiment of the utility model, the resistance value of the resistance circuit of the first switch connection is lower than described second
Switch the resistance value of the resistance circuit of connection.
In an embodiment of the utility model, first current potential is high potential, and the second current potential is low potential, described the
The control terminal of one switch is positive polarity, and the control terminal of the second switch is reversed polarity.
In an embodiment of the utility model, first current potential is low potential, and the second current potential is high potential, described the
The control terminal of one switch is reversed polarity, and the control terminal of the second switch is positive polarity.
In an embodiment of the utility model, the voltage value of first start voltage is higher than second start voltage
Voltage value.
In an embodiment of the utility model, the voltage value of first start voltage is lower than second start voltage
Voltage value.
In an embodiment of the utility model, first pressure difference is higher than second pressure difference.
In an embodiment of the utility model, first pressure difference is lower than second pressure difference.
In an embodiment of the utility model, described control unit includes command link, and described instruction route is high electricity
When position, described control unit exports the control signal of the first current potential, and when described instruction route is low potential, the control is single
The control signal of member the second current potential of output.
In an embodiment of the utility model, described control unit includes command link, and described instruction route is low electricity
When position, described control unit exports the control signal of the first current potential, and when described instruction route is high potential, the control is single
The control signal of member the second current potential of output.
In an embodiment of the utility model, the power module includes the first regulating circuit, the second regulating circuit, electricity
Source unit and switch unit；The power supply unit provides the first start voltage and the second start voltage of different voltage value；It is described
Switch unit includes two switching groups, the first start voltage and described the described in the input terminal difference electric property coupling of two switching group
Two start voltages, each switching group include first switch and second switch, and the first switch output end connection described first is adjusted
The output end of volt circuit, the second switch connects second regulating circuit.
In an embodiment of the utility model, first regulating circuit and second regulating circuit respectively include two
Resistance circuit；Two resistance circuit of first regulating circuit is configured at the output of the first switch of each switching group
End；Two resistance circuit of second regulating circuit is configured at the output end of the second switch of each switching group.
The utility model by switching operating module or power supply line to switch the operating voltage of operating mode, compared with can be not
In the case of substantially changing power supply line, aging, the lighting test of finished product are carried out, normal work electricity can be adjusted back after test
Pressure simplifies the test jobs of finished product, promotes the convenience of test, compared with the bad products of energy control early fault period.Moreover, related
Switching route and component can be directly designed in the driving circuit of display device, compared with that can be used in all kinds of display devices, be applicable in
Property is higher.
Detailed description of the invention
Fig. 1 is the configuration diagram of exemplary display device；
Fig. 2 is the display device schematic diagram of an embodiment of the present invention；
Fig. 3 is the display device schematic diagram of an embodiment of the present invention；
Fig. 4 is the display device schematic diagram of an embodiment of the present invention；
Fig. 5 is the display device schematic diagram of an embodiment of the present invention.
Specific embodiment
The explanation of following embodiment is to can be used to the specific reality of implementation to illustrate utility model with reference to additional schema
Apply example.The direction term that utility model is previously mentioned, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outside", " side
Face " etc. is only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand utility model, rather than
To limit utility model.
Attached drawing and explanation are considered inherently illustrative, rather than restrictive.The similar list of structure in the figure
Member is to be given the same reference numerals.In addition, in order to understand and be convenient for description, the size and thickness of each component shown in the accompanying drawings are
It is arbitrarily shown, but utility model is without being limited thereto.
In the accompanying drawings, for clarity, the thickness in layer, film, panel, region etc. is exaggerated, the configuration of circuit is also exaggerated
Range.In the accompanying drawings, in order to understand and be convenient for description, the thickness of some layer and region is exaggerated, the configuration model of circuit is also exaggerated
It encloses.It will be appreciated that when the component of such as layer, film, region, circuit or substrate component "upper" another referred to as " ", it is described
Component can be directly on another component, or there may also be intermediate modules.
In addition, in the description, unless explicitly described as opposite, otherwise word " comprising " will be understood as meaning to wrap
The component is included, but is not excluded for any other component.In addition, in the description, " above " means to be located at target group
Part either above or below, and be not intended to must be positioned on the top based on gravity direction.
Further to illustrate that utility model is the technical means and efficacy reaching predetermined purpose and being taken, below in conjunction with attached
Figure and preferred embodiment, to according to utility model propose a kind of display device, specific embodiment, structure, feature and its
Effect, detailed description is as follows.
Fig. 1 is the configuration diagram of exemplary display device.A kind of display device, comprising: control panel 100, the control
Making sheet 100 includes timing unit (Timing Controller, TCON) 101；Between printed circuit board 103, with the control panel
It is connected by flexible flat cable (Flexible Flat Cable, FFC) 102；Source electrode drive circuit 104 and gate driving
Circuit 105 respectively in viewing area 106 data line and scan line connect.In some embodiments, gate driving circuit 105 and
Source electrode drive circuit 104 includes but is not limited to flip chip form.In some embodiments, drive element of the grid 105 includes
But it is not limited to grid array driving (Gate On Array, GOA) form, gate driving circuit 105 can be divided into boost module
(level shifter) and shift register (shift register), boost module are arranged on control panel, shift register
It is then to be arranged on active array substrate.
The driving method of display device include: system board provide color (such as: R/G/B) compressed signal, control signal
And power delivery is to control panel 100.Tfi module 101 on control panel 100 and after handling these signals, together with driven circuit
The power supply of processing is transmitted to printed circuit board by flexible flat cable (Flexible Flat Cable, FFC) 102 together
103 drive element of the grid 105 and source drive unit 104, drive element of the grid 105 and source drive unit 104 will be necessary
Property data and power delivery in viewing area 106 so that display device obtains power supply, the signal that picture demand is presented.
The opening of panel is that each data line is opened in such a way that by-line scans (Line By Line).Specific implementation
Mode is that drive element of the grid 105 receives the clock signal (row signal) of tfi module offer, every rising by a clock
Edge just produces a digital signal.And the corresponding output of each digital signal.By digital-to-analogue conversion, low and high level is turned
Be changed to active switch needs high-low voltage to form gate drive signal, open panel line by line, then by pixel electrode into
Row charging.
However, after the general finished product of product will direct goods dispatch to respective vendor, therefore be less susceptible to control such early stage therefore
The bad products of barrier phase.
Fig. 2 is the display device schematic diagram of an embodiment of the present invention.If Fig. 2 is painted, one in the utility model is real
It applies in example, a kind of display device includes: display panel 210；Voltage generating unit 220, including the first incoming line 221a, second
Incoming line 221b, the first outlet line 222a and the second outlet line 222b, the first outlet line 222a and described the
Display panel 210 described in two outlet line 222b electric property couplings；Power module 230, connect the first incoming line 221a with
The second incoming line 221b, the power module 230 provide first voltage in the first incoming line 221a, provide
Second voltage is in the second incoming line 221b；Control unit 240 connects the power module 230, and provides control letter
Number；Wherein, the first outlet line 222a exports the first voltage, the second outlet line 222b output described the
Two voltages, when the acquirement of the power module 230 control signal is the first current potential, the power module 230 provides first electricity
It is the first pressure difference between pressure and the second voltage, when the acquirement of the power module 230 control signal is the second current potential, the electricity
Source module 230 is provided between the first voltage and the second voltage as the second pressure difference.The first outlet line 222a with
The second outlet line 222b output corresponds on the first incoming line 221a and the second incoming line 221b
The first voltage and the second voltage.
In an embodiment of the utility model, described control unit 240 is timing unit 101, and but not limited to this, also
It can be related or similar signal control element, circuit.In some embodiments, described control unit 240 also may include
In the timing unit 101.
Fig. 3 is the display device schematic diagram of an embodiment of the present invention.If Fig. 3 is painted, one in the utility model is real
Apply in example, the power module 230 include the first regulating circuit 231, second regulating circuit 232, power supply unit 234 with
Switch unit 233；The power supply unit 234 provides the first start voltage and the second start voltage of different voltage value；Described
One regulating circuit 231 is set to the input terminal and the power supply unit of the switch unit 233 with second regulating circuit 232
Between 234, the first incoming line 221a described in the output end electric property coupling of the switch unit 233 and second incoming line
221b；When the acquirement of the switch unit 233 control signal is the first current potential, the power supply unit 234, first regulating circuit
231 are connected to the voltage generating unit 220, and first regulating circuit 231 converts first start voltage and described the
Two start voltages are the first voltage and the second voltage for having first pressure difference, and the switch unit 233 obtains control
When signal processed is the second current potential, the power supply unit 234, second regulating circuit 232 and the voltage generating unit 220
Connection, second regulating circuit 232 convert first start voltage and second start voltage to have second pressure
The first voltage and the second voltage of difference.
Fig. 4 is the display device schematic diagram of an embodiment of the present invention.If Fig. 4 is painted, one in the utility model is real
It applies in example, the switch unit 233 includes first switch group 233a and second switch group 233b, the first switch group 233a
Output end connect the first incoming line 221a；The output end of the second switch group 233b connects second input line
Road 221b；Each switching group includes first switch (235a, 235b) and second switch (236a, 236b)；The institute of each switching group
The input terminal for stating first switch (235a, 235b) connects first regulating circuit 231；The second switch of each switching group
The input terminal of (236a, 236b) connects second regulating circuit 232；Each switching group the first switch (235a,
It is 235b) dissimilar polarities with the control terminal of the second switch (236a, 236b) and is coupled to described control unit 240.
In an embodiment of the utility model, first regulating circuit 231 is distinguished with second regulating circuit 232
Including two resistance circuits；Two resistance circuit (231a, 231b) of first regulating circuit 231 is configured at each switching group
The first switch (235a, 235b) input terminal；Second regulating circuit 232 two resistance circuit (232a,
232b) it is configured at the input terminal of the second switch (236a, 236b) of each switching group.
In an embodiment of the utility model, the resistance circuit of the first switch (235a, 235b) connection (231a,
Resistance value 231b) is higher than the resistance value of the resistance circuit (232a, 232b) of the second switch (236a, 236b) connection.
In an embodiment of the utility model, the resistance circuit of the first switch (235a, 235b) connection (231a,
Resistance value of resistance value 231b) lower than the resistance circuit (232a, 232b) of the second switch (236a, 236b) connection.
In an embodiment of the utility model, first current potential is high potential, and the second current potential is low potential, described the
The control terminal of one switch (235a, 235b) is positive polarity, and the control terminal of the second switch (236a, 236b) is reversed polarity.
In an embodiment of the utility model, the first switch (235a, 235b) is N-type metal-oxide semiconductor (MOS)
Field effect transistor, the second switch (236a, 236b) are P type metal oxide semiconductor field effect transistor.
In an embodiment of the utility model, first current potential is low potential, and the second current potential is high potential, described the
The control terminal of one switch (235a, 235b) is reversed polarity, and the control terminal of the second switch (236a, 236b) is positive polarity.
In an embodiment of the utility model, the first switch (235a, 235b) is P type metal oxide semiconductor
Field effect transistor, the second switch (236a, 236b) are N-type Metal Oxide Semiconductor Field Effect Transistor.
In an embodiment of the utility model, the voltage value of first start voltage is higher than second start voltage
Voltage value.
In an embodiment of the utility model, the voltage value of first start voltage is lower than second start voltage
Voltage value.
In an embodiment of the utility model, first pressure difference is higher than second pressure difference.
In an embodiment of the utility model, first pressure difference is lower than second pressure difference.
In an embodiment of the utility model, described control unit 240 includes command link 241, described instruction route
241 be high potential when, described control unit 240 export the first current potential the control signal, described instruction route 241 be low electricity
When position, described control unit 240 exports the control signal of the second current potential.
In an embodiment of the utility model, described control unit 240 includes command link 241, described instruction route
241 when being low potential, and described control unit 240 exports the control signal of the first current potential, and described instruction route 241 is high electricity
When position, described control unit 240 exports the control signal of the second current potential.
Continue referring to FIG. 4, described instruction route 241 is that aging mode instruction connects in an embodiment of the utility model
Foot (Aging Mode Pin), described control unit 240 are timing unit 101, and the first incoming line 221a is that switch is high
It presses input terminal (Voltage Gate High in, Vgh in), the second incoming line 221b is switch low pressure, input end
(Voltage Gate Low in, Vgl in), the first outlet line 222a are switch high-pressure output end (Voltage
Gate High out, Vgh out), the second outlet line 222b is switch low-voltage output (Voltage Gate Low
Out, Vgl out).The first switch (235a, 235b) of each switching group is that N-type metal oxide semiconductor field-effect is brilliant
Body pipe, the second switch (236a, 236b) are P type metal oxide semiconductor field effect transistor.The first pressure regulation electricity
Two resistance circuit (235a, 235b) on road 231 is to provide the voltage that burn-in test uses；Second regulating circuit 232
Two resistance circuit (236a, 236b) be to provide to work normally the voltage that uses, the first switch (235a, 235b)
The resistance value of the resistance circuit of connection is higher than the resistance value of the resistance circuit of the second switch (236a, 236b) connection.Described first
Current potential is high potential, and second current potential is low potential, and first pressure difference is higher than second pressure difference.Wherein, described instruction
When route 241 is in high potential, the control instruction of the output high potential of described control unit 240, described the first of each switching group
Switching (235a, 235b) is to open, and the second switch (236a, 236b) is to close, and the power supply unit 234 provides work electricity
Pressure, and the switch high-pressure (Vgh) of the first pressure difference of tool is exported by resistance circuit and switchs low pressure (Vgl), and passes through described first
Incoming line 221a and the second incoming line 221b are to the voltage generating unit 220.The voltage generating unit 220
The switch high-pressure of burn-in test demand is exported by the first outlet line 222a and the second outlet line 222b
(Vgh) and low pressure (Vgl) is switched.When described instruction route 241 is in low potential, described control unit 240 exports low potential
Control instruction, the second switch (236a, 236b) of each switching group are to open, and the first switch (235a, 235b) is
It closes, the power supply unit 234 provides operating voltage to be had the switch high-pressure (Vgh) of the second pressure difference and open by resistance circuit output
It closes low pressure (Vgl), and list is generated by the first incoming line 221a and the second incoming line 221b to the voltage
Member 220.The voltage generating unit 220 is exported just by the first outlet line 222a and the second outlet line 222b
The switch high-pressure (Vgh) and switch low pressure (Vgl) of normal work requirements.The voltage value for the switch high-pressure (Vgh) that burn-in test uses
Higher than the switch high-pressure (Vgh) of the demand of normal work, the voltage value for the switch low pressure (Vgl) that burn-in test uses is lower than normal work
Make the switch low pressure (Vgl) of demand.
Fig. 5 is the display device schematic diagram of an embodiment of the present invention.If Fig. 5 is painted, one in the utility model is real
It applies in example, the power module 230 includes that the first regulating circuit 231, the second regulating circuit 232, power supply unit 234 and switching are single
Member 233；The power supply unit 234 provides the first start voltage and the second start voltage of different voltage value；The switch unit
233 include two switching groups (233a, 233b), the described in the input terminal difference electric property coupling of two switching group (233a, 233b)
One start voltage and second start voltage, each switching group respectively include first switch (235a, 235b) and second switch
(236a, 236b), first switch (235a, the 235b) output end connect the first regulating circuit 231, the second switch
The output end of (236a, 236b) connects the second regulating circuit 232.
In an embodiment of the utility model, first regulating circuit 231 is distinguished with second regulating circuit 232
Including two resistance circuits；Two resistance circuit (231a, 231b) of first regulating circuit 231 is configured at each switching group
The first switch (235a, 235b) output end；Second regulating circuit 232 two resistance circuit (232a,
232b) it is configured at the output end of the second switch (236a, 236b) of each switching group.
The utility model by switching operating module or power supply line to switch the operating voltage of operating mode, compared with can be not
In the case of substantially changing power supply line, aging, the lighting test of finished product are carried out, normal work electricity can be adjusted back after test
Pressure simplifies the test jobs of finished product, promotes the convenience of test, compared with the bad products of energy control early fault period.Moreover, related
Switching route and component can be directly designed in the driving circuit of display device, compared with that can be used in all kinds of display devices, be applicable in
Property is higher.
In some embodiments, the display panel of the utility model may be, for example, liquid crystal display panel, so be not limited to
This, also can be OLED display panel, W-OLED display panel, QLED display panel, plasma display panel, and curved face type is aobvious
Show panel or other types display panel.
" in some embodiments ", terms are used repeatedly " in one embodiment " and " in various embodiments " etc..
This term not usually refers to identical embodiment；But it may also mean that identical embodiment."comprising", " having " and " comprising "
Equal words are synonyms, unless its context meaning shows other meanings.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation be not intended to limit the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripe
Professional and technical personnel is known, is not being departed within the scope of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still
It is within the scope of the technical solutions of the present invention.
Claims (10)
1. a kind of display device characterized by comprising
Display panel；
Voltage generating unit, including the first incoming line, the second incoming line, the first outlet line and the second outlet line, institute
State display panel described in the first outlet line and the second outlet line electric property coupling；
Power module, connects first incoming line and second incoming line, and the power module provides first voltage
In first incoming line, second voltage is provided in second incoming line；
Control unit connects the power module, and provides control signal；
Wherein, first outlet line exports the first voltage, and second outlet line exports the second voltage, institute
It states power module and obtains control signal when being the first current potential, the power module provides the first voltage and the second voltage
Between be the first pressure difference, the power module obtains control signal when being the second current potential, and the power module provides described first
It is the second pressure difference between voltage and the second voltage.
2. display device as described in claim 1, which is characterized in that
The power module includes the first regulating circuit, the second regulating circuit, power supply unit and switch unit；
The power supply unit provides the first start voltage and the second start voltage of different voltage value；
First regulating circuit and second regulating circuit are set to the input terminal and the power supply list of the switch unit
Between member, the first incoming line described in the output end electric property coupling of the switch unit and second incoming line；
The switch unit obtains control signal when being the first current potential, the power supply unit, first regulating circuit with it is described
Voltage generating unit connection, first regulating circuit convert first start voltage and second start voltage to have institute
The first voltage and the second voltage of the first pressure difference are stated, when the switch unit acquirement control signal is the second current potential,
The power supply unit, second regulating circuit are connected to the voltage generating unit, described in the second regulating circuit conversion
First start voltage and second start voltage are the first voltage and the second voltage for having second pressure difference.
3. display device as claimed in claim 2, which is characterized in that
The switch unit includes first switch group and second switch group；
The output end of the first switch group connects first incoming line；
The output end of the second switch group connects second incoming line；
Each switching group includes first switch and second switch；
The input terminal of the first switch of each switching group connects first regulating circuit；
The input terminal of the second switch of each switching group connects second regulating circuit；
The first switch of each switching group and the control terminal of the second switch are dissimilar polarities and are coupled to the control
Unit.
4. display device as claimed in claim 3, which is characterized in that
First regulating circuit and second regulating circuit respectively include two resistance circuits；
Two resistance circuit of first regulating circuit is configured at the input terminal of the first switch of each switching group；
Two resistance circuit of second regulating circuit is configured at the input terminal of the second switch of each switching group.
5. display device as claimed in claim 4, which is characterized in that the resistance value of the resistance circuit of the first switch connection is high
It is lower than institute in the resistance value of the resistance circuit of the resistance value or first switch connection of the resistance circuit of second switch connection
State the resistance value of the resistance circuit of second switch connection.
6. display device as claimed in claim 3, which is characterized in that first current potential is high potential, and the second current potential is low
Current potential, the control terminal of the first switch are positive polarity, and the control terminal of the second switch is reversed polarity or first electricity
Position is low potential, and the second current potential is high potential, and the control terminal of the first switch is reversed polarity, the control terminal of the second switch
For positive polarity.
7. display device as claimed in claim 2, which is characterized in that the voltage value of first start voltage is higher than described the
The voltage value of the voltage value of two start voltages or first start voltage is lower than the voltage value of second start voltage.
8. display device as described in claim 1, which is characterized in that first pressure difference is higher than second pressure difference, or
First pressure difference is lower than second pressure difference.
9. display device as described in claim 1, which is characterized in that described control unit includes command link, described instruction
When route is high potential, described control unit exports the control signal of the first current potential, when described instruction route is low potential,
Described control unit exports the control signal of the second current potential or described control unit includes command link, described instruction
When route is low potential, described control unit exports the control signal of the first current potential, when described instruction route is high potential,
Described control unit exports the control signal of the second current potential.
10. display device as described in claim 1, which is characterized in that
The power module includes the first regulating circuit and the second regulating circuit, power supply unit and switch unit；
The power supply unit provides the first start voltage and the second start voltage of different voltage value；
The switch unit includes two switching groups, the first start voltage described in the input terminal difference electric property coupling of two switching group
With second start voltage, each switching group includes first switch and second switch, and the first switch output end connects institute
The first regulating circuit is stated, the output end of the second switch connects second regulating circuit；
First regulating circuit and second regulating circuit respectively include two resistance circuits；
Two resistance circuit of first regulating circuit is configured at the output end of the first switch of each switching group；
Two resistance circuit of second regulating circuit is configured at the output end of the second switch of each switching group.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821423002.1U CN209118740U (en) | 2018-08-31 | 2018-08-31 | Display device |
| PCT/CN2019/073188 WO2020042539A1 (en) | 2018-08-31 | 2019-01-25 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821423002.1U CN209118740U (en) | 2018-08-31 | 2018-08-31 | Display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209118740U true CN209118740U (en) | 2019-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821423002.1U Active CN209118740U (en) | 2018-08-31 | 2018-08-31 | Display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209118740U (en) |
| WO (1) | WO2020042539A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101427592B1 (en) * | 2007-12-21 | 2014-08-08 | 삼성디스플레이 주식회사 | Inspecting apparatus for liquid crystal display and control method thereof |
| CN102063877B (en) * | 2009-11-12 | 2013-01-02 | 群康科技(深圳)有限公司 | LCD (Liquid Crystal Display) and detecting method thereof |
| TWI463459B (en) * | 2012-09-27 | 2014-12-01 | E Ink Holdings Inc | Flat panel display and threshold voltage sensing circuit thereof |
| CN104732913B (en) * | 2013-12-19 | 2018-12-14 | 昆山国显光电有限公司 | The screen body structure and its voltage conversion circuit of AMOLED |
| TWI658674B (en) * | 2017-01-20 | 2019-05-01 | 全漢企業股份有限公司 | Power supply system and power output module |
| CN107507586B (en) * | 2017-08-25 | 2019-11-29 | 惠科股份有限公司 | Driving device and display panel |
-
2018
- 2018-08-31 CN CN201821423002.1U patent/CN209118740U/en active Active
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2019
- 2019-01-25 WO PCT/CN2019/073188 patent/WO2020042539A1/en active Application Filing
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| WO2020042539A1 (en) | 2020-03-05 |
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