CN108877646A - A kind of display circuit and display - Google Patents
A kind of display circuit and display Download PDFInfo
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- CN108877646A CN108877646A CN201810836478.6A CN201810836478A CN108877646A CN 108877646 A CN108877646 A CN 108877646A CN 201810836478 A CN201810836478 A CN 201810836478A CN 108877646 A CN108877646 A CN 108877646A
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- nmos tube
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- pmos tube
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
Abstract
The invention discloses a kind of display circuits, when for tableaux signal, driving IC and row drive module are all disconnected with the driver module in display circuit, and tableaux signal save so as to show the tableaux signal of the sub-pixel by light emitting diode by the storage module in display circuit；At this time, driving IC and row drive module no longer need to pass to more new data into each sub-pixel in display panel, therefore, driving IC and row drive module will not consume power again, and main control chip and driving chip are saved in tableaux will update power loss caused by data transmission to display panel.In addition, the invention also discloses a kind of display, effect is as above.
Description
Technical field
The present invention relates to electronic technology field, in particular to a kind of display circuit and display.
Background technique
Currently, display has been widely used in the daily life of user, wrapped in each sub-pixel in display
Light emitting diode is contained to convert electrical current into display panel of the optical signal by picture in display and show.
In order to guarantee that the display panel of display can maintain picture normal, needing display front end, constantly more new data is simultaneously
More new data is passed into display panel.Currently, whether dynamic menu or tableaux, the front end of display all can be continuous
More new data and data transmission will be updated to driving IC, and drive IC that corresponding driving signal is also sent to display panel
Horizontal drive circuit (Scan driver), to drive display panel, (including multiple sub-pixels have correspondence in each sub-pixel
Display circuit (light emitting diode and peripheral circuit)) each sub-pixel show corresponding more new data, in this way, for quiet
State picture (corresponding tableaux signal) does not need real-time more new data, and constantly more new data is simultaneously for the main control chip of front end
It is sent to driving IC, then by driving IC to pass to the horizontal drive circuit of display panel, drives IC and horizontal drive circuit that can all consume
Certain power, so as to cause the waste of power.
Therefore, the damage of power caused by data transmission to display panel will be updated by display how being saved in tableaux
Consumption is those skilled in the art's problem to be solved.
Summary of the invention
It is an object of the invention to disclose a kind of display circuit and display, display is saved in tableaux will more
New data is sent to power loss caused by display panel.
To achieve the above object, the embodiment of the invention discloses following technical solutions：
Firstly, the embodiment of the invention discloses a kind of display circuits, including：
Driver module for receiving tableaux signal, the pattern switching for receiving tableaux switching signal
Module, light emitting diode and the storage module for storing tableaux signal；
The driver module is connect with row drive module and driving IC respectively, the row drive module and the drive
Dynamic IC connection, to receive the static picture that the main control chip connecting with the driving IC is sent in the driver module
After the signal of face, the driver module is disconnected with the row drive module and the driving IC, and is cut with the mode
Mold changing block is connected with the storage module；
The light emitting diode is connected by the driver module and the mode switch module and the storage module
It connects to show the tableaux signal.
Preferably, the driver module includes：First NMOS tube, the first PMOS tube and first capacitor；
The grid of first NMOS tube is connect with the row drive module, the drain electrode and the drive of first NMOS tube
Dynamic IC connection, the source electrode of first NMOS tube grid with the first end of the first capacitor and with first PMOS tube respectively
Pole connection；
The source electrode of first PMOS tube connects to power supply, and the drain electrode of first PMOS tube and the light emitting diode connect
It connects；
Corresponding, the mode switch module includes：Second NMOS tube, the second PMOS tube and third NMOS tube；
Wherein, the source electrode of second NMOS tube is connect with the source electrode of first NMOS tube；
The drain electrode of second NMOS tube is connect with the drain electrode of second PMOS tube；
The grid of second NMOS tube and signal input part corresponding with mode switching signal connection；
The source electrode of second PMOS tube and maximum voltage input terminal corresponding with light emitting diode connection, described the
The drain electrode of three NMOS tubes and minimum voltage input terminal corresponding with light emitting diode connection.
Preferably, the mode switch module includes：4th NMOS tube, the 5th NMOS tube and first resistor；
Wherein, the source electrode of the 4th NMOS tube respectively with the first end of the first resistor and the 5th NMOS tube
Drain electrode connection, the second end of the first resistor and maximum voltage input terminal corresponding with light emitting diode connection, it is described
The drain electrode of 4th NMOS tube and minimum voltage input terminal corresponding with light emitting diode connection, the grid of the 4th NMOS tube
Pole is connect with the storage module；
The signal input part connection corresponding with mode switching signal of the grid of 5th NMOS tube；
The driver module includes：6th NMOS tube, the 7th NMOS tube and the second capacitor；
The drain electrode of 6th NMOS tube is connect with the driving IC, and the grid and the row of the 6th NMOS tube drive
Module connection, the source electrode of the 6th NMOS tube source electrode with the first end of second capacitor, the 5th NMOS tube respectively
And the 7th NMOS tube grid connection, the second end of second capacitor respectively with the source electrode of the 7th NMOS tube and
Ground terminal connection.
Preferably, the driver module includes：
Third PMOS tube, the 4th PMOS tube and third capacitor；
The source electrode of the third PMOS tube is connect with the driving IC, and the grid and the row of the third PMOS tube drive
Module connection；
The drain electrode of the third PMOS tube connects with the grid of the first end of the third capacitor, the 4th PMOS tube respectively
It connects, the source electrode of the 4th PMOS tube is connect with the second end of third capacitor and power supply respectively；
Corresponding, the mode switch module includes：
5th PMOS tube, the 6th PMOS tube and second resistance；
The drain electrode of 5th PMOS tube is connect with the drain electrode of the third PMOS tube, the source electrode of the 5th PMOS tube with
The drain electrode of 6th PMOS tube connects, the grid and signal input part corresponding with mode switching signal of the 5th PMOS tube
Connection；
The maximum voltage input terminal connection corresponding with the light emitting diode of the source electrode of 6th PMOS tube, the described 6th
The drain electrode of PMOS tube and the first end of second resistance connect, and the grid of the 6th PMOS tube is connect with the storage module, institute
State the second end and minimum voltage input terminal corresponding with light emitting diode connection of second resistance.
Preferably, the storage module includes：First phase inverter and the second phase inverter；
The first end of first phase inverter and the second end of second phase inverter respectively with the mode switch module
Connection；
The second end of first phase inverter is connected with the first end of second phase inverter.
Secondly, the display includes display panel the embodiment of the invention discloses a kind of display, it further include as taken up an official post
Display circuit described in one kind of anticipating includes the display circuit in each sub-pixel of the display panel of the display.
As it can be seen that a kind of display circuit disclosed by the embodiments of the present invention, driver module respectively with row drive module and drive
Dynamic IC connection, to receive the tableaux signal sent with the driving IC main control chip connecting in driver module
Afterwards, it disconnects with row drive module and driving IC and is connected with mode switch module, storage module, light emitting diode passes through mould
Formula switching module and storage module connection are to show electric signal corresponding with tableaux signal.Therefore, using we
Case drives IC and row drive module all to disconnect with the driver module in display circuit when for tableaux signal,
And tableaux save so as to pass through light emitting diode for the sub-pixel by the storage module in display circuit
Tableaux signal shown；At this point, driving IC and row drive module no longer need more new data passing to display surface
Therefore each sub-pixel in plate drives IC and row drive module not to consume power again, display is saved in tableaux
Device will update power loss caused by data transmission to display panel.In addition, the embodiment of the invention also discloses a kind of displays
Device, effect are as above.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of display circuit disclosed in the first embodiment of the invention；
Fig. 2 is a kind of display device structure schematic diagram disclosed in second of embodiment of the invention；
Fig. 3 is a kind of display circuit structural schematic diagram disclosed in the third embodiment of the invention；
Fig. 4 is the signal wiring schematic diagram of each signal in a kind of display circuit disclosed by the embodiments of the present invention；
Fig. 5 is a kind of display circuit structural schematic diagram disclosed in the 4th kind of embodiment of the invention；
Fig. 6 is a kind of display circuit structural schematic diagram disclosed in the 5th kind of embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of display circuit and displays, and display will be saved in tableaux to be updated
Power loss caused by data transmission to display panel.
Referring to Figure 1, Fig. 1 is a kind of display circuit disclosed in the first embodiment of the invention, including：For receiving static state
The driver module 10 of picture signal, the mode switch module 20 for receiving tableaux switching signal, light emitting diode
30 and the storage module 40 for storing tableaux signal；
Driver module 10 is connect with row drive module 01 and driving IC 02 respectively, row drive module 01 and the drive
Dynamic IC 02, to receive the tableaux signal sent with driving IC 02 main control chip 03 connecting in driver module 10
Afterwards, driver module 10 and row drive module 01 and driving IC 02 disconnect and with mode switch module 20 and store mould
Block 40 is connected；Light emitting diode 30 is connect with storage module 40 by driver module 10 and mode switch module 20 with will be quiet
State picture signal is shown.
Specifically, in the present embodiment, driver module 10 specifically can by PMOS tube, NMOS tube, capacitor, resistance and
Other components composition, building form may include：The first, by multiple NMOS tubes and capacitor, resistance and other yuan of device
Part composition, second, is made of multiple PMOS tube and capacitor, resistance and other components, the third, by multiple NMOS
Pipe, PMOS tube, capacitor, resistance and other components composition.The major function of driver module is, with driving IC 02
Tableaux signal (tableaux signal is corresponding with tableaux data) is input to display driving by the main control chip 03 of connection
After module 10, driver module 10 and row drive module 01 and driving IC 02 disconnect that (i.e. main control chip 03 can not be again
By driving IC to transmit more new data into display panel), at this point, being cut since mode switch module 20 has received tableaux
Signal is changed, mode switch module 20 is just connected with driver module 10, the storage module 40 connecting with mode switch module 20
It receives and is sent to the tableaux signal of driver module 10 by main control chip 03 and is stored up the tableaux signal
It deposits.Mode switch module 20 can receive the operating voltage signal of light emitting diode corresponding with tableaux signal, and pass through
Driver module 10 by the voltage signal of light emitting diode corresponding with tableaux signal be sent to light emitting diode 30 with
The tableaux signal is shown into (form that the mode of display is light), the power of the brightness of light emitting diode 30 can root
It is shown according to the size of the tableaux signal stored in storage module 40.For example, the static picture stored in storage module 40
Signal corresponding voltage signal in face is 6V, then diode displaying is most bright, if the tableaux signal pair in storage module 40
The voltage signal answered is 1V, then the display of light emitting diode 30 is most dark.For driver module 10, mode switch module 20 and
Embodiment hereinafter is described in detail the structure of storage module 40.
Row drive module 01, driving IC 02 and main control chip 03 are all the original circuit structure of display, display
The display circuit in the embodiment of the present invention is contained in display panel in each sub-pixel.Pass through height every in display panel
Display circuit in pixel realizes the display of entire tableaux in display panel.
As it can be seen that a kind of display circuit disclosed by the embodiments of the present invention, driver module respectively with row drive module and drive
Dynamic IC connection, to receive the tableaux signal sent with the driving IC main control chip connecting in driver module
Afterwards, it disconnects with row drive module and driving IC and is connected with mode switch module, storage module, light emitting diode passes through mould
Formula switching module and storage module connection are to show electric signal corresponding with tableaux signal.Therefore, using we
Case drives IC and row drive module all to disconnect with the driver module in display circuit when for tableaux signal,
And tableaux save so as to pass through light emitting diode for the sub-pixel by the storage module in display circuit
Tableaux signal shown；At this point, driving IC and row drive module no longer need more new data passing to display surface
Therefore each sub-pixel in plate drives IC and row drive module not to consume power again, display is saved in tableaux
Device will update power loss caused by data transmission to display panel.
Based on above embodiments, as preferred embodiment, driver module 10 includes：First NMOS tube, first
PMOS tube and first capacitor；
The grid of first NMOS tube is connect with row drive module 10, and the drain electrode of the first NMOS tube is connect with driving IC 02, the
The source electrode of one NMOS tube is connect with the first end of first capacitor and with the grid of the first PMOS tube respectively, the source electrode of the first PMOS tube
It connects to power supply, the drain electrode of the first PMOS tube is connect with light emitting diode 30.
Corresponding, mode switch module includes：Second NMOS tube, the second PMOS tube and third NMOS tube；
Wherein, the source electrode of the second NMOS tube is connect with the source electrode of the first NMOS tube；
The drain electrode of second NMOS tube is connect with the drain electrode of the second PMOS tube；
The grid of second NMOS tube and signal input part corresponding with mode switching signal connection；
The source electrode of second PMOS tube and maximum voltage input terminal corresponding with light emitting diode connection, the leakage of third NMOS tube
Pole and minimum voltage input terminal corresponding with light emitting diode connection.
Specifically, NMOS tube, the quantity of PMOS tube may be other quantity, NMOS tube and PMOS tube in the present embodiment
Between connection relationship can also be adjusted according to the actual situation, as long as being able to achieve the effect of technical solution proposed by the present invention
It all belongs to the scope of protection of the present invention.
Based on the above embodiment, as preferred embodiment, mode switch module 20 includes：Mode switch module includes：
4th NMOS tube, the 5th NMOS tube and first resistor；
Wherein, the source electrode of the 4th NMOS tube is connect with the drain electrode of the first end of first resistor and the 5th NMOS tube respectively, the
The second end of one resistance and maximum voltage input terminal corresponding with light emitting diode connection, the drain electrode of the 4th NMOS tube and with shine
The corresponding minimum voltage input terminal connection of diode, the grid of the 4th NMOS tube are connect with storage module 40；
The signal input part connection corresponding with mode switching signal of the grid of 5th NMOS tube；
Driver module includes：6th NMOS tube, the 7th NMOS tube and the second capacitor；
The drain electrode of 6th NMOS tube is connect with driving IC 02, and the grid of the 6th NMOS tube is connect with row drive module, and the 6th
The source electrode of NMOS tube is connect with the grid of the first end of the second capacitor, the source electrode of the 5th NMOS tube and the 7th NMOS tube respectively,
The second end of second capacitor is connect with the source electrode of the 7th NMOS tube and ground terminal respectively.
Specifically, the quantity of NMOS tube may be other quantity in the present embodiment, the connection relationship root between NMOS tube
It can also be adjusted according to actual conditions, as long as the effect for being able to achieve technical solution proposed by the present invention belongs to guarantor of the invention
Protect range.
Exist based on the above embodiment, as preferred embodiment, driver module 01 includes：
Third PMOS tube, the 4th PMOS tube and third capacitor；
The source electrode of third PMOS tube is connect with driving IC, and the grid of third PMOS tube is connect with row drive module 01；
The drain electrode of third PMOS tube is connect with the grid of the first end of third capacitor, the 4th PMOS tube respectively, the 4th PMOS
The source electrode of pipe is connect with the second end of third capacitor and power supply respectively；
Mode switch module 20 includes：
5th PMOS tube, the 6th PMOS tube and second resistance；
The drain electrode of 5th PMOS tube is connect with the drain electrode of third PMOS tube, the source electrode of the 5th PMOS tube and the 6th PMOS tube
Drain electrode connection, the grid of the 5th PMOS tube and signal input part corresponding with pattern switching connection；
The maximum voltage input terminal connection corresponding with light emitting diode of the source electrode of 6th PMOS tube, the drain electrode of the 6th PMOS tube
Connect with the first end of second resistance, the grid of the 6th PMOS tube is connect with storage module, the second end of second resistance and with hair
The corresponding minimum voltage input terminal connection of optical diode.
Specifically, the quantity of PMOS tube may be other quantity in the present embodiment, the connection relationship root between PMOS tube
It can also be adjusted according to actual conditions, as long as the effect for being able to achieve technical solution proposed by the present invention belongs to guarantor of the invention
Protect range.
Based on above embodiments, as preferred embodiment, storage module 40 includes：First phase inverter and the second reverse phase
Device；
The first end of first phase inverter and the second end of the second phase inverter are connect with mode switch module 20 respectively；
The second end of first phase inverter is connected with the first end of the second phase inverter.
Specifically, the structure of storage module 40 is not limited to one of the above mode in the present embodiment, in addition, for storage
(such as red corresponding voltage signal, blue are corresponding for the corresponding picture color of tableaux signal of storage in storing module 40
Voltage signal, the corresponding voltage signal of green) be not limited to red, blue, three kinds of green.The color of tableaux is practical
On can there are many kinds of combination, in this embodiment of the present invention and be not construed as limiting.
A kind of display disclosed by the embodiments of the present invention is introduced below, refers to Fig. 2, Fig. 2 is the present invention second
A kind of display device structure schematic diagram disclosed in kind of embodiment in the figure, only enumerates 4 sub- pictures in the display panel of display
Element, but in actual conditions, the number of the sub-pixel in display panel can be more.Display 1 includes display panel, further includes：
The display circuit that any one as above embodiment is mentioned, each sub-pixel of the display panel of display 1 include the present invention with
The display circuit 101 that upper any one embodiment is mentioned.
Specifically, display can be OLED display, light-emitting diode display etc. in the embodiment of the present invention.It is understood that
It is either what type of display, each sub-pixel in the display panel of the display includes any of the above one
When the display circuit 101 that embodiment is mentioned, it can reach and save display in tableaux for update data transmission to display
The purpose of power loss caused by panel.As it can be seen that a kind of display disclosed by the embodiments of the present invention, the display panel of display
Each sub-pixel in contain display circuit disclosed by the embodiments of the present invention, therefore, one kind disclosed by the embodiments of the present invention
Display has technical effect possessed by any of the above one embodiment.
The technical solution that embodiment proposes in order to better understand the present invention, below with reference to practical application scene to the present invention
The technical solution of embodiment is illustrated, and refers to Fig. 3, and Fig. 3 is a kind of display circuit disclosed in the third embodiment of the invention
Structural schematic diagram, the display circuit in Fig. 4 are mainly the display circuit for using NMOS tube and PMOS tube to constitute, and in Fig. 4, display is driven
It include the first NMOS tube NMOS_1, the first PMOS tube PMOS_1 and capacitor C (first capacitor), pattern switching electricity in dynamic circuit 10
It include the second NMOS tube NMOS_2, the second PMOS tube PMOS_2 and third NMOS tube NMOS_3 in road 20, in storage circuit 40
Including the first phase inverter 401 and the second phase inverter 402, the first end of the first phase inverter 401 and the second phase inverter 402 is grounded
The second end of GND, the first phase inverter 401 and the second phase inverter 402 provides the signal of tableaux signal V_P with control chip
Input terminal connects, signal HVDD, GN, V_data, Vin, V_P and Mode of each signal input part in the embodiment of the present invention
Control is the signal wiring diagram that display circuit is input to provided by display.Fig. 4 is referred to, Fig. 4 is that the present invention is real
Apply the signal wiring schematic diagram of each signal in a kind of display circuit disclosed in example, wherein including：Horizontal-drive signal incoming line,
Picture shows signal input line road, mode switching signal incoming line and electric signal incoming line；Wherein, pattern switching inputs
Include high level signal and low level signal (corresponding to tableaux signal and dynamic menu signal), electric signal in signal line
It include the minimum allowable voltage signal VH and maximum of the light emitting diode corresponding with tableaux signal of input in incoming line
Allow voltage signal V0, the supply voltage signal HVDD of power supply, the tableaux signal that is input in storage module 40, wherein
The size relation of the signal value of each signal input line input is specially：Horizontal-drive signal V_P>V0>=HVDD>VH>Vth_
Diode (the starting voltage of light emitting diode)>GND, Gn are AC signal.Wherein, V0 and VH is the voltage range of signal V_data,
The signal value range of VIN is V_P and GND.The connection relationship of device each in Fig. 4 is illustrated below, first first
The drain electrode of NMOS tube NMOS_1 is connect with driving IC 02, the tableaux signal that driving IC 02 is transmitted and row drive module 01
The GN signal of GN signal end in horizontal-drive signal incoming line is made comparisons, if driving IC 02 draws the static state of output
After storage module 40 is written in face signal, the first NMOS tube NMOS_1 is then in off state at this time.First NMOS tube NMOS_1's
Grid is connect with row drive module 01, the source electrode of the first NMOS tube NMOS_1 respectively with the first end of capacitor C, the second NMOS tube
The connection of the grid of the source electrode of NMOS_2 pipe and the first PMOS tube PMOS_1, the source electrode and electric signal of the first PMOS tube PMOS_1 are defeated
Enter HVDD signal end (power supply) connection in route, the drain electrode of the first PMOS tube PMOS_1 and the anode of light emitting diode 30 connect
It connects, the drain electrode leakage with the second PMOS tube PMOS_2 respectively of the minus earth GND, the second NMOS tube NMOS_2 of light emitting diode 30
Pole is connected with the source electrode of third NMOS tube NMOS_3, and the source electrode of the second PMOS tube PMOS_2 and the V0 in electric signal incoming line believe
Number end (maximum operating voltage of light emitting diode 30) connection, the grid of the second PMOS tube PMOS_2 respectively with electric signal input line
The grid and storage module 40 of VIN signal end, third NMOS tube in road connect, the drain electrode of third NMOS tube NMOS_3 with
The end minimum allowable voltage signal VH corresponding with light emitting diode (minimum voltage input terminal) connection in electric signal input line.Storage
The first end of the first phase inverter 401 in storing module 40 is connect with the second end of the second phase inverter 402, the first phase inverter 401
Second end is connect with the first end of the second phase inverter 402, the third at the third end of the first phase inverter 401 and the second phase inverter 402
End is connect with ground terminal GND, and the 4th end of the first phase inverter 401 and the 4th end of the second phase inverter 402 are aobvious with tableaux
Show the V_P signal end connection in signal input line road.
It should be noted that including above-mentioned display circuit in each sub-pixel in the embodiment of the present invention, pass through luminous two
Pole pipe in the form of light shows voltage signal, to show entire tableaux in conjunction with entire display panel.Vth_
What diode was indicated is the starting voltage of light emitting diode.
The display circuit for using NMOS tube composition in the embodiment of the present invention is illustrated below, refers to Fig. 5, Fig. 5 is
A kind of display circuit structural schematic diagram disclosed in 4th kind of embodiment of the invention, the size of the signal value of various electric signals in Fig. 5
Sequence is also horizontal-drive signal V_P>V0>=HVDD>VH>Vth_diode>GND, GN are AC signal, therefore, it is not necessary to again and its
His voltage signal is compared.Wherein, V0 and VH is the voltage range of signal V_data, and the signal value range of VIN is V_P
With GND.The structure of each display circuit in Fig. 5 is illustrated below, in Fig. 5, storage module 40 and light emitting diode 30 with
Storage module 40 and light emitting diode 30 in Fig. 4 are consistent, mode switch module 20 include the 4th NMOS tube NMOS_4 and
5th NMOS tube NMOS_5 and resistance, driving display module 10 include the 6th NMOS tube NMOS_6, the 7th NMOS tube NMOS_7
And capacitor C (the second capacitor).A kind of structure of display circuit disclosed by the embodiments of the present invention is described in detail below,
In, the V_data signal input part in the drain electrode electric signal incoming line of the 6th NMOS tube NMOS_6 in driver module 10
(driving IC) connection, the source electrode of the 6th NMOS tube NMOS_6 grid with the first end of capacitor C and the 7th NMOS tube NMOS_7 respectively
Pole connection, the second end of capacitor C are grounded GND, the grid and the row in horizontal-drive signal incoming line of the 6th NMOS tube NMOS_6
Driving signal input connects (GN), and the source electrode of the 7th NMOS tube NMOS_7 in driver module 10 is grounded GND, and the 7th
The drain electrode of NMOS tube NMOS_7 is connect with the cathode of light emitting diode 30, the anode and electric signal incoming line of light emitting diode 30
In the connection of HVDD signal end, the first of the source electrode of the 4th NMO S pipe NMOS_4 in mode switch module 20 and first resistor
End connection, the second end of first resistor are connect, the 4th with the V0 signal end (maximum voltage input terminal) in electric signal incoming line
VH signal end (minimum voltage input corresponding with light emitting diode in the drain electrode and signal input line road of NMOS tube NMOS_4
End) connection, the grid of the 4th NMOS tube NMOS_4 respectively in signal input line road Vin signal end and storage module 40 connect
It connects, the drain electrode of the 5th NMOS tube NMOS_5 is connect with the source electrode of the 4th NMOS tube NMOS_4, the source electrode of the 5th NMOS tube NMOS_5
It is connect respectively with the grid of the first end of capacitor C, the source electrode of the 6th NMOS tube NMOS_6, the 7th NMOS tube NMOS_7, the 5th
The grid of NMOS tube NMOS_5 and the end Mode control in mode switching signal incoming line are (corresponding with mode switching signal
Signal input part) connection, the connection relationship embodiment corresponding with Fig. 4 of each device in storage module 40 is identical, of the invention
Details are not described herein for embodiment.What Vth_diode was indicated is the starting voltage of light emitting diode.
The display circuit for using PMOS tube composition in the embodiment of the present invention is illustrated below, refers to Fig. 6, Fig. 6 is
A kind of structural schematic diagram of display circuit disclosed in 5th kind of embodiment of the invention, as shown in fig. 6, various electric signals in Fig. 6
The size sequence of signal value is also horizontal-drive signal V_P>V0>=HVDD>VH>Vth_diode>GND, GN are AC signal.Its
In, the voltage range that V0 and VH are signal V_data, the signal value range of VIN is between V_P and 0.Below to being shown in Fig. 6
The structure of circuit is illustrated, in Fig. 6, being consistent in the structure and above-described embodiment of storage module 40, and driving display mould
Block 10 includes third PMOS tube PMOS_3, the 4th PMOS tube PMOS_4 and capacitor C (third capacitor), and mode switch module 20 is wrapped
The 5th PMOS tube PMOS_5, the 6th PMOS tube PMOS_6 and resistance are included, below to the connection of each device in the display circuit
Relationship is illustrated, and the grid of third PMOS tube PMOS_3 and the GN signal end (row drive module) in horizontal-drive signal route connect
It connects, the source electrode of third PMOS tube PMOS_3 is connect, third with the V_data signal end (driving IC) in electric signal incoming line
The drain electrode of PMOS tube PMOS_3 is connect with the first end of capacitor C, the second end and the 4th PMOS tube of capacitor C (third capacitor)
In the source electrode and electric signal incoming line of PMOS_4 HVDD signal end (power supply) connection, the drain electrode of the 4th PMOS tube PMOS_4 with
The anode of light emitting diode 30 connects, the minus earth GND of light emitting diode, the drain electrode of the 5th PMOS tube PMOS_5 respectively with electricity
The first end for holding C is connected with the drain electrode of third PMOS tube PMOS_3, the source electrode and the 6th PMOS tube of the 5th PMOS tube PMOS_5
The drain electrode of PMOS_6 connects, the grid and the Mode control in mode switching signal incoming line of the 5th PMOS tube PMOS_5
Signal end (signal input part corresponding with mode switching signal) connection, the source electrode and electric signal of the 6th PMOS tube PMOS_6 input
V0 signal input part (maximum voltage input terminal) connection in route, the grid of the 6th PMOS tube PMOS_6 are defeated with electric signal respectively
The VIN signal input part and storage module 40 entered in route connects, the connection structure of storage module 40 and above-mentioned two embodiment
In storage module be consistent, details are not described herein for the embodiment of the present invention.
It should be noted that the structure of display circuit is not limited to circuit structure mentioned above, root in the embodiment of the present invention
According to practical situations, display circuit can also have more structures, in addition, NMOS tube, the quantity of PMOS tube are also not necessarily limited to
The quantity that embodiment is mentioned is stated, in addition it is also possible to which other electron component is connected to display circuit disclosed by the embodiments of the present invention
In, as long as the structure for being able to achieve the technical solution of the embodiment of the present invention belongs to the range that the present invention is protected.Vth_diode table
What is shown is the starting voltage of light emitting diode.
A kind of display circuit of the disclosure as set forth herein and display are described in detail above.Tool used herein
The principle and implementation of this application are described for body example, the above embodiments are only used to help understand this Shen
Method and its core concept please.It should be pointed out that for those skilled in the art, not departing from the application
Under the premise of principle, can also to the application, some improvement and modification can also be carried out, these improvement and modification also fall into the application right
It is required that protection scope in.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
?.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Claims (6)
1. a kind of display circuit, which is characterized in that including：For receiving the driver module of tableaux signal, for connecing
Receive mode switch module, light emitting diode and the storage mould for storing tableaux signal of tableaux switching signal
Block；
The driver module is connect with row drive module and driving IC respectively, and the row drive module and the driving IC connect
It connects, to receive the tableaux signal that the main control chip connecting with the driving IC is sent in the driver module
Afterwards, the driver module is disconnected with the row drive module and the driving IC, and with the mode switch module
It is connected with the storage module；
The light emitting diode connect by the driver module and the mode switch module with the storage module with
The tableaux signal is shown.
2. display circuit according to claim 1, which is characterized in that the driver module includes：First NMOS tube,
First PMOS tube and first capacitor；
The grid of first NMOS tube is connect with the row drive module, the drain electrode of first NMOS tube and the driving IC
Connection, the source electrode of first NMOS tube connect with the first end of the first capacitor and with the grid of first PMOS tube respectively
It connects；
The source electrode of first PMOS tube connects to power supply, and the drain electrode of first PMOS tube is connect with the light emitting diode；
Corresponding, the mode switch module includes：Second NMOS tube, the second PMOS tube and third NMOS tube；
Wherein, the source electrode of second NMOS tube is connect with the source electrode of first NMOS tube；
The drain electrode of second NMOS tube is connect with the drain electrode of second PMOS tube；
The grid of second NMOS tube and signal input part corresponding with mode switching signal connection；
The source electrode of second PMOS tube and maximum voltage input terminal corresponding with light emitting diode connection, the third
The drain electrode of NMOS tube and minimum voltage input terminal corresponding with light emitting diode connection.
3. display circuit according to claim 1, which is characterized in that the mode switch module includes：4th NMOS tube,
5th NMOS tube and first resistor；
Wherein, the source electrode of the 4th NMOS tube drain electrode with the first end of the first resistor and the 5th NMOS tube respectively
Connection, the second end of the first resistor and maximum voltage input terminal corresponding with light emitting diode connection, the described 4th
The drain electrode of NMOS tube and minimum voltage input terminal corresponding with the light emitting diode connection, the grid of the 4th NMOS tube with
The storage module connection；
The signal input part connection corresponding with mode switching signal of the grid of 5th NMOS tube；
The driver module includes：6th NMOS tube, the 7th NMOS tube and the second capacitor；
The drain electrode of 6th NMOS tube is connect with the driving IC, the grid of the 6th NMOS tube and the row drive module
Connection, the source electrode of the 6th NMOS tube respectively with the first end of second capacitor, the 5th NMOS tube source electrode and
The grid of 7th NMOS tube connects, the second end of second capacitor source electrode and ground terminal with the 7th NMOS tube respectively
Connection.
4. display circuit according to claim 1, which is characterized in that the driver module includes：
Third PMOS tube, the 4th PMOS tube and third capacitor；
The source electrode of the third PMOS tube is connect with the driving IC, the grid of the third PMOS tube and the row drive module
Connection；
The drain electrode of the third PMOS tube is connect with the grid of the first end of the third capacitor, the 4th PMOS tube respectively,
The source electrode of 4th PMOS tube is connect with the second end of third capacitor and power supply respectively；
Corresponding, the mode switch module includes：
5th PMOS tube, the 6th PMOS tube and second resistance；
The drain electrode of 5th PMOS tube is connect with the drain electrode of the third PMOS tube, the source electrode of the 5th PMOS tube with it is described
The drain electrode of 6th PMOS tube connects, and the grid of the 5th PMOS tube and signal input part corresponding with mode switching signal connect
It connects；
The maximum voltage input terminal connection corresponding with the light emitting diode of the source electrode of 6th PMOS tube, the 6th PMOS
The first end of the drain electrode of pipe and second resistance connects, and the grid of the 6th PMOS tube is connect with the storage module, and described the
The second end of two resistance and minimum voltage input terminal corresponding with light emitting diode connection.
5. display circuit according to any one of claims 1-4, which is characterized in that the storage module includes：First
Phase inverter and the second phase inverter；
The first end of first phase inverter and the second end of second phase inverter are connect with the mode switch module respectively；
The second end of first phase inverter is connected with the first end of second phase inverter.
6. a kind of display, the display includes display panel, which is characterized in that further includes claim 1-5 any one
The display circuit includes the display circuit in each sub-pixel of the display panel of the display.
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| CN201810836478.6A CN108877646B (en) | 2018-07-26 | 2018-07-26 | Display circuit and display |
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|---|---|---|---|
| CN201810836478.6A CN108877646B (en) | 2018-07-26 | 2018-07-26 | Display circuit and display |
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| CN108877646B CN108877646B (en) | 2020-03-06 |
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| CN113223443A (en) * | 2020-01-17 | 2021-08-06 | 厦门凌阳华芯科技有限公司 | Multi-pixel LED driving chip and LED display screen |
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| CN108877646B (en) | 2020-03-06 |
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Address after: Unit 801-A, No. 37-3, Banshangshe, Building 3, Xinke Plaza, Xiamen Torch High-tech Zone, Xiamen, Fujian 361000 Patentee after: Xiamen Lingyang Huaxin Technology Co.,Ltd. Address before: Room 203-91, South Building, Torch Plaza, No. 56-58, Torch Road, Torch Park, Torch High-tech Zone, Huli District, Xiamen City, Fujian 361009 Patentee before: XIAMEN LINGYANG HUAXIN TECHNOLOGY CO.,LTD. |