CN107424558A - A kind of light emission drive circuit and organic electroluminescence display panel - Google Patents
A kind of light emission drive circuit and organic electroluminescence display panel Download PDFInfo
- Publication number
- CN107424558A CN107424558A CN201710481601.2A CN201710481601A CN107424558A CN 107424558 A CN107424558 A CN 107424558A CN 201710481601 A CN201710481601 A CN 201710481601A CN 107424558 A CN107424558 A CN 107424558A
- Authority
- CN
- China
- Prior art keywords
- output end
- input
- power voltage
- drive circuit
- light emission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- 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
A kind of light emission drive circuit of present invention proposition and organic electroluminescence display panel, the light emission drive circuit, including：Multiple luminous driver elements, luminous driver element includes the first drive module and the second drive module, first drive module includes first input end, first output end, second drive module includes the second input, second output end, first power voltage terminal, second source voltage end and the 3rd power voltage terminal, first output end and the electrical connection of the second input, in display mode, after the luminous enable signal of first output end output, second output end exports the first supply voltage that the first power voltage terminal provides, under control mode touch mode, no matter whether the signal of the first output end output is luminous enable signal, second output end exports the signal with luminous enable signal opposite in phase.The present invention is under control mode touch mode, and the second output end is not influenceed by luminous enable signal, it is ensured that all pixel cells are turned off under control mode touch mode.
Description
Technical field
The present invention relates to display technology field, more particularly, to a kind of light emission drive circuit and organic light emitting display face
Plate.
Background technology
Organic electroluminescence display panel is a kind of Display Technique using organic luminescent device (OLED), wherein, such as Fig. 1 institutes
Showing, OLED includes cathode layer 1, anode layer 2 and organic compound layer 3a, 3b, 3c, 3d and 3e between the two, wherein, 3a is sky
Cave implanted layer, 3b are hole transmission layer, 3c is luminescent layer, 3d is electron transfer layer, 3e is electron injecting layer.When driving voltage is applied
When being added on anode layer 1 and cathode layer 2, the hole in hole injection layer 3a will pass through hole transmission layer 3b to reach luminescent layer 3c,
Meanwhile the electronics in electron injecting layer 3d will pass through electron transfer layer 3e to reach luminescent layer 3c, reach luminescent layer 3c electronics and
Hole is mutually compound, forms exciton, thus, visible ray is produced in luminescent layer 3c.The advantages of this organic electroluminescence display panel, exists
In thickness of thin, visual angle is wide, response is fast.
Traditional organic electroluminescence display panel includes display module and touch-control module as shown in Figure 2, including：TP touch screens
201st, first substrate 202, TP touch screens flexible PCB 203, cathode layer 204, OLED luminescent layers 205, anode layer 206, TFT are thin
Film transistor layer 207, substrate 208 and OLED flexible PCBs 209.By the first substrate 202 containing TP touch screens 201 with having
The second substrate 208 of TFT tft layers 207 is bonded to each other and respectively by TP touch screens flexible PCB 203 and OLED
Flexible PCB 209 is connected with external control circuit.
Touch controllable function and display function can be integrated in same display panel by the OLED display panel shown in Fig. 2.
But there is the shortcomings of light transmission rate is low, display device is thicker in this technology；Or touch control electrode is made under package substrate, but
This scheme is only limitted to the encapsulation of glass lid, after OLED, which is shown, uses thin film encapsulation technology, that is, is unable to meet demand.
Display module and touch-control module are respectively necessary for single flexible PCB to drive, and production cost is high, and unfavorable
In the lightening of display panel.
Therefore it provides a kind of organic electroluminescence display panel of embedded touch-display one (IN-CELL), to reduce life
Production cost, realize that the lightening of display panel is this area urgent problem to be solved.
The content of the invention
In view of this, on the one hand, the invention provides a kind of light emission drive circuit, including：Multiple luminous driver elements, hair
Optical drive unit includes the first drive module and the second drive module, and the first drive module includes first input end, the first output
End, the second drive module include the second input, the second output end, the first power voltage terminal, second source voltage end and the 3rd
Power voltage terminal, the first output end and the electrical connection of the second input, in display mode, the luminous enabled letter of the first output end output
After number, the second output end export the first power voltage terminal provide the first supply voltage, under control mode touch mode, no matter first output
Whether the signal for holding output is luminous enable signal, and the second output end exports the signal with luminous enable signal opposite in phase.
On the other hand, the invention provides a kind of organic electroluminescence display panel, including above-mentioned light emission drive circuit.
Compared with prior art, light emission drive circuit and organic electroluminescence display panel provided by the invention, are at least realized such as
One of lower beneficial effect：
(1) organic electroluminescence display panel has the function of embedded touch-display one, realizes organic electroluminescence display panel
It is lightening.
(2) in display mode, light emission drive circuit exports the first supply voltage that the first power voltage terminal provides and supplies picture
Plain unit lights；Under control mode touch mode, light emission drive circuit is exported with the signal for the enable signal opposite in phase that lights to ensure to touch
All pixel cells do not light under control pattern, avoid organic electroluminescence display panel from stealing the problem of bright under control mode touch mode.
(3) in display mode, different luminous make can be formed by adjusting the voltage swing of the first power voltage terminal
Can signal, with the size of current on the effective current path of pixel cell corresponding to regulation, control the overall brightness of display.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiments of the invention, and even
It is used for the principle for explaining the present invention together with its explanation.By read with reference to the following drawings made to non-limiting example institute
The detailed description of work, other features, objects and advantages will become more apparent upon：
Fig. 1 is the ray structure schematic diagram of OLED in the prior art；
Fig. 2 is the structural representation of OLED light emitting display panels in the prior art；
Fig. 3 is the top view of organic electroluminescence display panel of the present invention；
Fig. 4 is the structure chart of light emission drive circuit of the present invention；
Fig. 5 be Fig. 4 shown in light emission drive circuit in the first drive module timing diagram；
Fig. 6 is a kind of structure chart of the second drive module in light emission drive circuit of the present invention；
Fig. 7 A be Fig. 6 shown in image element circuit figure in the second drive module a kind of timing diagram；
Fig. 7 B be Fig. 6 shown in image element circuit figure in the second drive module another timing diagram；
Fig. 7 C be Fig. 6 shown in image element circuit figure in the second drive module another timing diagram；
Fig. 8 is another structure chart of the second drive module in light emission drive circuit of the present invention；
Fig. 9 A are the timing diagram of the second drive module shown in Fig. 8；
Fig. 9 B are another timing diagram of the second drive module shown in Fig. 6；
Fig. 9 C are another timing diagram of the second drive module shown in Fig. 8；
Figure 10 is a kind of schematic cross-section of organic electroluminescence display panel of the present invention；
Figure 11 is a kind of cross section signal of structure of cathode metal layer in organic electroluminescence display panel of the present invention
Figure.
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related application, rather than the restriction to this application.It also should be noted that in order to
It is easy to describe, the part related to the application is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 3 is the top view of organic electroluminescence display panel of the present invention.
As shown in figure 3, organic electroluminescence display panel 100 includes viewing area 101 and the non-display area around viewing area 101
102.Viewing area 101 includes multirow pixel cell 40, and the light emitting control line 12 electrically connected with pixel cell 40.Non-display area
102 include light emission drive circuit 10, scan drive circuit 20 and flexible PCB 30.
As shown in figure 3, light emission drive circuit 10 is connected by light emitting control line 12 with corresponding pixel cell 40, it is luminous
Control line 12 provides LED control signal, for controlling whether pixel cell 40 lights.
As shown in figure 3, scan drive circuit 20 is that pixel cell 40 provides gated sweep signal by grid line 21.
Fig. 4 is the structure chart of light emission drive circuit 10 of the present invention.
As shown in figure 4, the light emission drive circuit 10 of the present invention includes multiple luminous driver elements 11.
Wherein, the driver element 11 that lights includes the first drive module 111 and the second drive module 112.First drive module
Including first input end IN1, the first output end OUT1, the second drive module includes the second input IN2, the second output end
OUT2, the first power voltage terminal V1, second source voltage end V2 and the 3rd power voltage terminal V3.First output end OUT1 and second
Input IN2 is electrically connected, and the second output end OUT2 electrically connects with light emitting control line.
In display mode, after the luminous enable signal of the first output end OUT1 outputs, the second output end OUT2 outputs first
The first supply voltage that power voltage terminal V1 is provided；Under control mode touch mode, no matter the first output end OUT1 output signal whether
For the enable signal that lights, the second output end OUT2 exports the signal with luminous enable signal opposite in phase.
Light emission drive circuit provided by the invention exports the first power voltage terminal to light emitting control line in display mode and carried
The first supply voltage supplied, to determine the luminosity of pixel cell；Under control mode touch mode, light emission drive circuit is to light emitting control
Line exports the signal with the enable signal opposite in phase that lights, it is ensured that all pixel cells do not light.Therefore, it is provided by the invention
Light emission drive circuit can either ensure the voltage signal needed for normal display, and it is bright that and can avoids under control mode touch mode pixel cell from stealing
Problem.
Specifically, Fig. 5 is the timing diagram of the first drive module in the light emission drive circuit shown in Fig. 4；Such as Fig. 4 luminous drive
Timing diagram shown in the structure chart and Fig. 5 of dynamic circuit 10, in display mode, the low level that first input end IN1 is provided, pass through
After the displacement of first drive module 111 low level is exported in the first output end OUT1.
Fig. 6 is a kind of structure chart of the second drive module in light emission drive circuit of the present invention, and Fig. 7 A are shown in Fig. 6
The second drive module timing diagram.
As shown in fig. 6, the second drive module 112 includes the first phase inverter 1121 and the second phase inverter 1122, first is anti-phase
Device 1121 includes the first control terminal A1, the 3rd input IN3, the 4th input IN4 and the 3rd output end OUT3, the second phase inverter
1122 include the second control terminal A3, the 5th input IN5, the 6th input IN6, the 4th output end OUT4；
First control terminal A1 electrically connects with the first output end OUT1, the 3rd input IN3 and second source voltage end V2 electricity
Connection, the 4th input IN4 electrically connect with the 3rd power voltage terminal V3, and the 3rd output end OUT3 is electrically connected with the second control terminal A3
Connect, the 5th input IN5 electrically connects with second source voltage end V2, and the 6th input IN6 is electrically connected with the first power voltage terminal V1
Connect, the 4th output end OUT4 electrically connects with the second output end OUT2.
As one embodiment, as shown in fig. 6, the second source voltage that second source voltage end V2 is provided is high level
The 3rd supply voltage that VGH, the 3rd power voltage terminal V3 are provided is low level VGL.
Timing diagram as shown in Figure 7 A, in display mode, the low level that the first power voltage terminal V1 is provided, when first defeated
After going out to hold the luminous enable signal of OUT1 outputs, the circuit diagram according to Fig. 6, the second output end OUT2 exports the first supply voltage
The first supply voltage for holding V1 to provide, and as shown in Figure 7 A, the first control terminal A1 provides low level, i.e. the second output end OUT2 is defeated
Go out low level.Under control mode touch mode, the first output end OUT1 continues to output luminous enable signal, and the first power voltage terminal V1 is provided
The first supply voltage be high level, it can be seen from the circuit diagram shown in Fig. 6, the second output end OUT2 export the first supply voltage
Hold V1 provide high level, i.e. the second output end OUT2 output high level (as shown in Figure 7 A), i.e., with luminous enable signal phase
Opposite signal.Fig. 7 B are the timing diagrams of the second drive module shown in Fig. 6, and the difference with timing diagram shown in Fig. 7 A is,
Under control mode touch mode, the hanging no signal outputs of the first output end OUT1 (the first drive module i.e. shown in Fig. 4 does not work).Specifically
Ground, in display mode, the low level that the first power voltage terminal V1 is provided, when the first output end OUT1 exports luminous enable signal
Afterwards, the circuit diagram according to Fig. 6, the second output end OUT2 export the first supply voltage that the first power voltage terminal V1 is provided,
And as shown in Figure 7 B, the first control terminal A1 provides low level, i.e. the second output end OUT2 output low levels.Under control mode touch mode,
First output end OUT1 is hanging, and no signal output, the first supply voltage that the first power voltage terminal V1 is provided is high level, according to
Circuit diagram shown in Fig. 6 understands that the second output end OUT2 exports the high level that the first power voltage terminal V1 is provided, i.e., the second output
Hold OUT2 output high level (as shown in Figure 7 B), the i.e. signal with luminous enable signal opposite in phase.Fig. 7 C are shown in Fig. 6
The timing diagram of two drive modules, the difference with timing diagram shown in Fig. 7 A is, under control mode touch mode, the first output end OUT1 outputs
High level signal (i.e. with the signal of luminous enable signal opposite in phase).Specifically, in display mode, the first power voltage terminal
The low level that V1 is provided, after the first output end OUT1 exports luminous enable signal, the circuit diagram according to Fig. 6, second is defeated
Go out to hold OUT2 to export the first supply voltage that the first power voltage terminal V1 is provided, and as seen in figure 7 c, the first control terminal A1 is provided
Low level, i.e. the second output end OUT2 export low level.Under control mode touch mode, the first output end OUT1 output high level signals,
The first supply voltage that first power voltage terminal V1 is provided is high level, it can be seen from the circuit diagram shown in Fig. 6, the second output end
OUT2 exports the high level that the first power voltage terminal V1 is provided, i.e. the second output end OUT2 exports high level (as seen in figure 7 c),
I.e. with the signal of luminous enable signal opposite in phase.
Therefore, it can be seen from the timing diagram shown in Fig. 7 A-7C, in display mode, the output of the first output end is luminous enabled
After signal, the second output end exports the first supply voltage that the first power voltage terminal provides, no matter first defeated under control mode touch mode
Whether the signal for going out end output is luminous enable signal, and the second output end exports the letter with luminous enable signal opposite in phase
Number.
It should be noted that " the luminous enable signal " mentioned in the embodiment of the present invention is instigated in image element circuit with lighting
The electrical signal of the transistor turns of control line electrical connection.Luminous enable signal shown in Fig. 7 A~7C is low level signal, is
For the transistor electrically connected in image element circuit with light emitting control line is PMOS types.Certainly, in other realities of the present invention
Apply in example, the transistor types in image element circuit can also be NMOS, and therefore, the luminous enable signal shown in Fig. 7 A~7C will
It is changed into high level signal.
In some optional embodiments, in display mode, the first supply voltage M that the first power voltage terminal V1 is provided
The second source voltage provided less than second source voltage end V2, and the first supply voltage M that the first power voltage terminal V1 is provided
The 3rd supply voltage provided more than the 3rd power voltage terminal V3, i.e. VGL ＜ M ＜ VGH.
Preferably, the first supply voltage that the first power voltage terminal V1 is provided is [- 10V, 10V].
Therefore, in display mode, can be adjusted by the first power voltage terminal V1 the first supply voltage M provided change
The size of the second output end OUT2 output voltage is saved, so as to control the electric current on the effective current path of corresponding pixel cell
Size, control the overall brightness of display.
As shown in figure 8, Fig. 8 is another structure chart of the second drive module in light emission drive circuit of the present invention.
Fig. 9 A are the timing diagram of the second drive module shown in Fig. 8.
As shown in figure 8, the second drive module 112 includes the first NAND gate 1123 and the 3rd phase inverter 1124, first with it is non-
Door 1123 includes the 3rd control terminal A2, the 4th control terminal B, the 7th input IN7, the 8th input IN8, the 5th output end
OUT5, the 3rd phase inverter 1124 include the 5th control terminal A4, the 9th input IN9, the tenth input IN10, the 6th output end
OUT6, the 3rd control terminal A2 electrically connect with the first output end OUT1, and the 4th control terminal B electrically connects with the 4th power voltage terminal V4,
7th input IN7 electrically connects with second source voltage end V2, and the 8th input IN8 electrically connects with the 3rd power voltage terminal V3,
5th output end OUT5 electrically connects with the 5th control terminal A4, and the 9th input IN9 electrically connects with second source voltage end V2, and the tenth
Input IN10 electrically connects with the first power voltage terminal V1, and the 6th output end OUT6 electrically connects with the second output end OUT2.
As one embodiment, as shown in figure 8, the second source voltage that second source voltage end V2 is provided is high level
The 3rd supply voltage that VGH, the 3rd power voltage terminal V3 are provided is low level VGL.
Timing diagram as shown in Figure 9 A, in display mode, the first power voltage terminal V1 provide low level, when the first output
After holding the luminous enable signal of OUT1 outputs, the circuit diagram according to Fig. 8, the second output end OUT2 exports the first power voltage terminal
The first supply voltage that V1 is provided, and as shown in Figure 9 A, the 3rd control terminal A2 provides low level, the 4th control terminal B provides high electricity
It is flat, i.e. the second output end OUT2 low levels.Under control mode touch mode, the first output end OUT1 continues to output luminous enable signal, the
The first supply voltage that one power voltage terminal V1 is provided is high level, it can be seen from the circuit diagram shown in Fig. 8, the second output end
OUT2 export the first supply voltage provide high level, i.e. the second output end OUT2 output high level (as shown in Figure 9 A), i.e., with
The signal of luminous enable signal opposite in phase.
Fig. 9 B are the timing diagrams of the second drive module shown in Fig. 8, and the difference with timing diagram shown in Fig. 9 A is, in touch-control
Under pattern, the hanging no signal outputs of the first output end OUT1 (the first drive module i.e. shown in Fig. 4 does not work).Specifically, exist
Under display pattern, the low level of the first power voltage terminal V1 offers, after the first output end OUT1 exports luminous enable signal, root
According to the circuit diagram shown in Fig. 8, the second output end OUT2 exports the first supply voltage that the first power voltage terminal V1 is provided, and as schemed
Shown in 9B, the 3rd control terminal A2 provides low level, and the 4th control terminal B provides high level, i.e. the second output end OUT2 exports low electricity
It is flat.Under control mode touch mode, the first output end OUT1 is hanging, no signal output, the first power supply that the first power voltage terminal V1 is provided
Voltage is high level, and it can be seen from the circuit diagram shown in Fig. 8, the second output end OUT2 exports what the first power voltage terminal V1 was provided
High level, i.e. the second output end OUT2 output high level (as shown in Figure 9 B), the i.e. signal with luminous enable signal opposite in phase.
Fig. 9 C are the timing diagrams of the second drive module shown in Fig. 8, and the difference with timing diagram shown in Fig. 9 A is, in touch-control
Under pattern, the first output end OUT1 output high level signals (i.e. with the signal of luminous enable signal opposite in phase).Specifically, exist
Under display pattern, the low level of the first power voltage terminal V1 offers, after the first output end OUT1 exports luminous enable signal, root
According to the circuit diagram shown in Fig. 8, the second output end OUT2 exports the first supply voltage that the first power voltage terminal V1 is provided, and as schemed
Shown in 9C, the 3rd control terminal A2 provides low level, and the 4th control terminal B provides high level, i.e. the second output end OUT2 exports low electricity
It is flat.Under control mode touch mode, the first output end OUT1 output high level signals, the first power supply electricity that the first power voltage terminal V1 is provided
Press as high level, it can be seen from the circuit diagram shown in Fig. 8, the height of the second output end OUT2 output the first power voltage terminal V1 offers
Level, i.e. the second output end OUT2 output high level (as shown in Figure 9 C), the i.e. signal with luminous enable signal opposite in phase.
Therefore, it can be seen from the timing diagram shown in Fig. 9 A~9C, in display mode, the output of the first output end is luminous enabled
After signal, the first voltage of the second output end output first voltage end offer, under control mode touch mode, no matter the first output end exports
Signal whether be luminous enable signal, the second output end exports the signal with luminous enable signal opposite in phase.
It should be noted that " the luminous enable signal " mentioned in the embodiment of the present invention is instigated in image element circuit with lighting
The electrical signal of the transistor turns of control line electrical connection.Luminous enable signal shown in Fig. 9 A~and Fig. 9 C is believed for low level
Number, it is for for PMOS types for the transistor electrically connected in image element circuit with light emitting control line.Certainly, the present invention its
In his embodiment, the transistor types in image element circuit can also be NMOS, therefore, luminous enabled as shown in Fig. 9 A~9C
Signal will be changed into high level signal.
In some optional embodiments, in display mode, the first supply voltage M that the first power voltage terminal V1 is provided
The second source voltage provided less than second source voltage end, and the first supply voltage M that the first power voltage terminal V1 is provided is big
In the 3rd supply voltage that the 3rd power voltage terminal provides, i.e. VGL ＜ M ＜ VGH.
Preferably, the first supply voltage that the first power voltage terminal V1 is provided is [- 10V, 10V].
Therefore, in display mode, can be adjusted by the first power voltage terminal V1 the first supply voltage M provided change
The size of the second output end OUT2 output voltage is saved, so as to control the electric current on the effective current path of corresponding pixel cell
Size, control the overall brightness of display.
Figure 10 is a kind of sectional view of structure of organic electroluminescence display panel of the present invention.In some optional implementations
In example, as shown in Figure 10, organic electroluminescence display panel includes display module, touch-control module and encapsulated layer 1019.
Display module includes glass substrate 1011, array base palte 1012 and the display function layer set gradually, display function
Layer includes anode metal layer 1013, luminous organic material 1014 and the cathode metal layer 1015 set gradually, anode metal layer
1013 are arranged on side of the array base palte 1012 away from glass substrate 1011.
Touch-control module includes touch control electrode.In this embodiment, cathode metal layer 1015 is multiplexed with touch control electrode, encapsulated layer
1019 are arranged on side of the cathode metal layer 1015 away from luminous organic material 1014.Flexible PCB 30 and cathode metal layer
1015 electrical connections.In display mode, flexible PCB 30 provides d. c. voltage signal to cathode metal layer 1015；In touch-control mould
Under formula, flexible PCB 30 provides cyclic pulse signal to cathode metal layer 1015.
In some embodiments of the invention, cathode metal layer 1015 is multiplexed with self-tolerant touch control electrode.As shown in figure 11, scheme
11 be a kind of structural representation of cathode metal layer 1015 in the present embodiment.Cathode metal layer 1015 include it is multiple in X direction and Y
The touch control electrode block 114 of direction array arrangement, each touch control electrode block 114 are connected to flexible PCB by touch-control lead 113
30.Specific operation principle is that touch control electrode block 114 had not only been used as touch-control driving electrodes but also had been used as touch detection electrodes, flexible electrical
Road plate 30 inputs touch-control drive signal by touch control electrode cabling 113 to touch control electrode block 114, when extraneous finger touches, touches
The electric capacity of control electrode block 114 can be changed, and the change of this electric capacity is sensed by touch control electrode block 114, so that it is determined that touching
Touch position.
Certainly, in other embodiments of the present invention, cathode metal layer 1015 can be multiplexed with touch-control driving electrodes, or
Person, touch detection electrodes are multiplexed with, to realize mutual capacitance type touch-control structure.
By above-described embodiment, light emission drive circuit and organic electroluminescence display panel of the invention, reach as follows
Beneficial effect：
(1) organic electroluminescence display panel has the function of embedded touch-display one, realizes organic electroluminescence display panel
It is lightening.
(2) in display mode, light emission drive circuit exports the first supply voltage that the first power voltage terminal provides and supplies picture
Plain unit lights；Under control mode touch mode, light emission drive circuit is exported with the signal for the enable signal opposite in phase that lights to ensure to touch
All pixel cells do not light under control pattern, avoid organic electroluminescence display panel from stealing the problem of bright under control mode touch mode.
(3) in display mode, different luminous make can be formed by adjusting the voltage swing of the first power voltage terminal
Can signal, with the size of current on the effective current path of pixel cell corresponding to regulation, control the overall brightness of display.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel it should be understood that example above merely to illustrating, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (10)
1. a kind of light emission drive circuit, including：Multiple luminous driver elements,
The luminous driver element includes the first drive module and the second drive module,
First drive module include first input end, the first output end, second drive module include the second input,
Second output end, the first power voltage terminal, second source voltage end and the 3rd power voltage terminal,
First output end and second input electrical connection,
In display mode, after the luminous enable signal of the first output end output, the second output end output described first
The first supply voltage that power voltage terminal provides,
Under control mode touch mode, no matter whether the signal of first output end output is the luminous enable signal, described second
Output end exports the signal with the luminous enable signal opposite in phase.
2. light emission drive circuit according to claim 1, it is characterised in that it is anti-phase that second drive module includes first
Device and the second phase inverter, first phase inverter include the first control terminal, the 3rd input, the 4th input, the 3rd output end,
Second phase inverter includes the second control terminal, the 5th input, the 6th input, the 4th output end；
First control terminal electrically connects with first output end, the 3rd input and second source voltage end electricity
Connection, the 4th input electrically connect with the 3rd power voltage terminal, the 3rd output end and second control terminal
Electrical connection, the 5th input electrically connect with the second source voltage end, the 6th input and the first supply voltage
End electrical connection, the 4th output end electrically connect with second output end.
3. light emission drive circuit according to claim 1, it is characterised in that second drive module include first with it is non-
Door and the 3rd phase inverter, first NAND gate include the 3rd control terminal, the 4th control terminal, the 7th input, the 8th input,
5th output end, the 3rd phase inverter include the 5th control terminal, the 9th input, the tenth input, the 6th output end,
3rd control terminal electrically connects with first output end, and the 4th control terminal is electrically connected with the 4th power voltage terminal
Connect, the 7th input electrically connects with the second source voltage end, the 8th input and the 3rd supply voltage
End electrical connection, the 5th output end electrically connect with the 5th control terminal, the 9th input and second source electricity
Pressure side electrically connects, and the tenth input electrically connects with first power voltage terminal, the 6th output end and described second
Output end electrically connects.
4. light emission drive circuit according to claim 1, it is characterised in that the first of the first power voltage terminal offer
Supply voltage is less than the second source voltage that the second source voltage end provides, and first power voltage terminal provide the
One supply voltage is more than the 3rd supply voltage that the 3rd power voltage terminal provides.
5. light emission drive circuit according to claim 3, it is characterised in that under control mode touch mode, the 4th power supply electricity
Pressure side provides and the luminous enable signal phase identical signal.
6. light emission drive circuit according to claim 1, it is characterised in that the first of the first power voltage terminal offer
Supply voltage is [- 10V, 10V].
7. a kind of organic electroluminescence display panel, it is characterised in that including the light emission drive circuit according to claim 1-6.
8. organic electroluminescence display panel according to claim 7, it is characterised in that the organic electroluminescence display panel includes
Viewing area and the non-display area around the viewing area, the viewing area include multirow pixel cell, and with the pixel list
The light emitting control line of member electrical connection, the non-display area include the light emission drive circuit, the light emitting control line and the hair
Second output end electrical connection of light drive circuit.
9. organic electroluminescence display panel according to claim 7, it is characterised in that the organic electroluminescence display panel also wraps
Cathode metal layer is included, the cathode metal layer is multiplexed with touch control electrode.
10. organic electroluminescence display panel according to claim 9, it is characterised in that the organic electroluminescence display panel is also
Including flexible PCB, under the display pattern, the flexible PCB provides DC voltage letter to the cathode metal layer
Number, under the control mode touch mode, the flexible PCB provides cyclic pulse signal to the cathode metal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710481601.2A CN107424558B (en) | 2017-06-22 | 2017-06-22 | Light-emitting drive circuit and organic light-emitting display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710481601.2A CN107424558B (en) | 2017-06-22 | 2017-06-22 | Light-emitting drive circuit and organic light-emitting display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107424558A true CN107424558A (en) | 2017-12-01 |
| CN107424558B CN107424558B (en) | 2020-04-03 |
Family
ID=60427366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710481601.2A Active CN107424558B (en) | 2017-06-22 | 2017-06-22 | Light-emitting drive circuit and organic light-emitting display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107424558B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007017564A (en) * | 2005-07-06 | 2007-01-25 | Seiko Epson Corp | Electro-optical device, driving method and electronic equipment |
| CN103680410A (en) * | 2013-12-23 | 2014-03-26 | 京东方科技集团股份有限公司 | Touch display driving method based on AMOLED (active matrix organic light emitting diode) |
| CN104537972A (en) * | 2014-12-26 | 2015-04-22 | 厦门天马微电子有限公司 | Driving circuit, touch displaying panel and touch displaying device |
| CN104793805A (en) * | 2015-05-13 | 2015-07-22 | 京东方科技集团股份有限公司 | Touch circuit, touch panel and display device |
| CN105260067A (en) * | 2014-07-16 | 2016-01-20 | 乐金显示有限公司 | In-cell touch display device |
| CN105427821A (en) * | 2015-12-25 | 2016-03-23 | 武汉华星光电技术有限公司 | GOA (Gate Driver on Array) circuit applied to In Cell-type touch display panel |
| CN105630234A (en) * | 2015-12-21 | 2016-06-01 | 上海天马微电子有限公司 | Touch display device and touch detection method |
| CN105654902A (en) * | 2016-03-31 | 2016-06-08 | 上海天马微电子有限公司 | OLED (organic LED) display panel, touch electrode driving circuit and driving method |
| CN105741772A (en) * | 2016-05-16 | 2016-07-06 | 上海天马微电子有限公司 | OLED (Organic Light Emitting Diode) display device, driving method and driving circuit thereof |
| CN205645814U (en) * | 2016-03-15 | 2016-10-12 | 上海天马微电子有限公司 | Organic luminous display panel |
| CN106095198A (en) * | 2016-08-18 | 2016-11-09 | 上海中航光电子有限公司 | A kind of touch control display apparatus, touch-control display panel and driving method thereof |
| US20180203545A1 (en) * | 2015-09-25 | 2018-07-19 | Lg Display Co., Ltd. | Driver Integrated Circuit and Display Apparatus Including the Same |
-
2017
- 2017-06-22 CN CN201710481601.2A patent/CN107424558B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007017564A (en) * | 2005-07-06 | 2007-01-25 | Seiko Epson Corp | Electro-optical device, driving method and electronic equipment |
| CN103680410A (en) * | 2013-12-23 | 2014-03-26 | 京东方科技集团股份有限公司 | Touch display driving method based on AMOLED (active matrix organic light emitting diode) |
| CN105260067A (en) * | 2014-07-16 | 2016-01-20 | 乐金显示有限公司 | In-cell touch display device |
| CN104537972A (en) * | 2014-12-26 | 2015-04-22 | 厦门天马微电子有限公司 | Driving circuit, touch displaying panel and touch displaying device |
| CN104793805A (en) * | 2015-05-13 | 2015-07-22 | 京东方科技集团股份有限公司 | Touch circuit, touch panel and display device |
| US20180203545A1 (en) * | 2015-09-25 | 2018-07-19 | Lg Display Co., Ltd. | Driver Integrated Circuit and Display Apparatus Including the Same |
| CN105630234A (en) * | 2015-12-21 | 2016-06-01 | 上海天马微电子有限公司 | Touch display device and touch detection method |
| CN105427821A (en) * | 2015-12-25 | 2016-03-23 | 武汉华星光电技术有限公司 | GOA (Gate Driver on Array) circuit applied to In Cell-type touch display panel |
| CN205645814U (en) * | 2016-03-15 | 2016-10-12 | 上海天马微电子有限公司 | Organic luminous display panel |
| CN105654902A (en) * | 2016-03-31 | 2016-06-08 | 上海天马微电子有限公司 | OLED (organic LED) display panel, touch electrode driving circuit and driving method |
| CN105741772A (en) * | 2016-05-16 | 2016-07-06 | 上海天马微电子有限公司 | OLED (Organic Light Emitting Diode) display device, driving method and driving circuit thereof |
| CN106095198A (en) * | 2016-08-18 | 2016-11-09 | 上海中航光电子有限公司 | A kind of touch control display apparatus, touch-control display panel and driving method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107424558B (en) | 2020-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104036698B (en) | It is integrated with the display device and its driving method of touch screen panel | |
| CN101894856B (en) | Organic light-emitting diode (OLED) display screen and touch detection unit | |
| CN107219660A (en) | A kind of array base palte, display panel and display device | |
| CN109994068A (en) | Show equipment | |
| CN103886813B (en) | Display with double faces, the control device of display with double faces and manufacture method thereof | |
| CN108133688A (en) | EL display device | |
| CN205645814U (en) | Organic luminous display panel | |
| CN108206005A (en) | Display device and the method for driving the display device | |
| CN104036731B (en) | Image element circuit and display device | |
| CN102301409A (en) | Display apparatus | |
| CN103247656A (en) | Organic electroluminescent display device | |
| CN104991683A (en) | OLED (organic light emitting dioxide) touch display panel and control method therefor and display device | |
| CN107275379A (en) | Touch oled display panel and display device | |
| CN110045849A (en) | Display equipment with touch screen | |
| CN105374846A (en) | Organic light emitting display panel | |
| CN102998845A (en) | Liquid crystal display (LCD) and display device | |
| CN106324877A (en) | Display panel, production method and driving method thereof as well as display device | |
| CN104505019A (en) | Electricity-saving method and device of AMOLED (Active Matrix/Organic Light Emitting Diode) display screen and terminal system | |
| CN103500753A (en) | OLED (Organic Light Emitting Diode) display panel | |
| CN104009061A (en) | Display device | |
| CN111710306B (en) | Self-luminous LCD (liquid crystal display) screen, display device and television | |
| CN107393474A (en) | Transparent double face display device and its driving method | |
| CN105185808B (en) | Active-matrix Organic Light Emitting Diode touch control display apparatus | |
| CN106648266A (en) | Display device with pressure sensitive touch control function and driving method | |
| CN207199626U (en) | Top emitting display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |