CN110021269A - Promote the signal inputting method of display panel charge rate - Google Patents
Promote the signal inputting method of display panel charge rate Download PDFInfo
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- CN110021269A CN110021269A CN201910367129.9A CN201910367129A CN110021269A CN 110021269 A CN110021269 A CN 110021269A CN 201910367129 A CN201910367129 A CN 201910367129A CN 110021269 A CN110021269 A CN 110021269A
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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]
- 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]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
A kind of signal inputting method promoting display panel charge rate, including display panel provide step, grid signal input step and data signal input step.The grid signal input step is that grid signal is written in the side pixel to the pixel column of the display panel and center pixel point input one simultaneously on one first time point.The data signal input step is to input a data signal to the side pixel of the pixel column on one second time point, then a data signal is inputted in the center pixel point of the third time point to the pixel column, wherein second time point, which is later than between first time point and second time point and first time point, has a first time poor, the third time point is later than first time point, and has for one second time difference between the third time point and first time point.The above method can promote the display uniformity of display panel.
Description
Technical field
The invention relates to a kind of signal inputting methods of display panel, in particular to a kind of promotion display panel
The signal inputting method of charge rate.
Background technique
In the display panel of existing large scale high-resolution high refresh rate, since grid (Gate) and data (Data) are believed
Number have biggish resistance/capacitance (Resistor/Capacitor, RC) value, signal display panel different pixels point have not
Same RC retardation ratio, leads to the Data signal undercharge of the serious pixel of RC retardation ratio, eventually leads to the display picture of display panel
Face brightness or color are uneven.
Fig. 1 and Fig. 2 is please referred to, Fig. 1 is the schematic diagram of the display panel of the prior art, and Fig. 2 is prior art display surface
Grid signal and data signal input timing curve graph on plate, wherein the longitudinal axis is that (unit is voltage or other tables to signal strength
Show the unit of intensity), horizontal axis is time (unit is μ s).
The display panel 90 has a viewing area, has multirow pixel column R1, R2, R3, each letter on the viewing area
Number input column R1, R2, R3 have one be located at the viewing area side side pixel P1 and one be located in the viewing area
Center pixel point P2 at centre, as shown in Figure 1.
In Fig. 2, WR_R1, WR_R2, WR_R3 respectively represent pixel P1, P2 in wherein pixel column R1, R2, R3
The timing curve of upper input grid signal, Data respectively represent the timing curve of the input data signal on pixel P1, P2.
When the prior art is to display panel input signal, according to timing curve WR_R1 (P2) and timing curve WR_R1
(P1) it is found that grid signal is on one first time point T1 while to be input to side pixel P1 and center pixel point P2.In addition,
By according to timing curve Data (P2) and according to timing curve Data (P1) it is found that data signal be on one second time point T2 it is same
When be input to side pixel P1 and center pixel point P2.Therefore side pixel P1 and center pixel point P2 grid signal and
Data signal cross_placing time difference (time difference between the first time point T1 and the second time point T2) is identical, and side pixel P1 is in
Entreating the respective Data signal input time point of pixel P2 is the second time point T2, leads to the serious center pixel point P2's of RC retardation ratio
Data signal undercharge, brightness or the color for finally resulting in the picture that display panel is manifested are uneven.
Following table one is the charge rate of each pixel column of the prior art and side pixel P1 and center pixel in each column
The current unevenness evenness of point P2.
Therefore, it is necessary to a kind of signal inputting method for promoting display panel charge rate is provided, is deposited with solving the prior art
Same signal input column in each point Data signal input time point it is identical and be not staggered cause Data signal charge rate foot simultaneously
Further result in the brightness for the picture that display panel is manifested or the problem of color unevenness.
Summary of the invention
The present invention provides a kind of signal inputting method for promoting display panel charge rate, to solve present in the prior art
The Data signal input time point of each point is identical in same signal input column and not being staggered causes Data signal charge rate to go forward side by side one enough
Walk the brightness for the picture for causing display panel to be manifested or the problem of color unevenness.
Present invention is primarily aimed at provide a kind of signal inputting method for promoting display panel charge rate, comprising:
Display panel provides step, including provides a display panel, wherein a viewing area is provided on the display panel,
Define an at least pixel column on the viewing area, the pixel column include one be located at the side pixel of the viewing area side with
And one be located at the viewing area centre center pixel point, wherein the side pixel and center pixel point
Each is separately connected a gate line and a data signal line, wherein each side pixel and center pixel
Each of point is separately connected a circuit, and the circuit includes the sensing of a data signal line, a parallel data signal line
Signal wire and one vertically connect the data signal line and the sensing signal line gate line, believe in the data
A writing transistor, a driving transistor and a sensing transistor number are connected between line and the sensing signal line, it is described
Writing transistor connects the data signal line by a data signal point, and the data signal point is used for said write crystal
Pipe inputs a data signal, and said write transistor is connected on the gate line by grid signal write-in point, institute
Grid signal write-in point is stated for one write-in grid signal of said write transistor input；
Grid signal input step, including the side pixel on one first time point while to the pixel column
The grid signal write-in point of the grid signal write-in point and center pixel point inputs a write-in grid news respectively
Number；And
Data signal input step, including described in the side pixel on one second time point to the pixel column
Data signal point inputs a data signal, then in a third time point to the money of the center pixel point of the pixel column
Expect that signaling point inputs a data signal, wherein second time point is later than first time point and second time point and described the
It is one poor at the first time to have between one time point, and the third time point is later than first time point, and the third time point with it is described
There is one second time difference between first time point.
In one embodiment of this invention, the third time point is later than second time point, and the first time is poor to be less than
Second time difference.
In one embodiment of this invention, the third time point is earlier than second time point, and the first time is poor to be greater than
Second time difference.
In one embodiment of this invention, the grid signal input step and the data signal input step be
It is completed in one frame picture of the display panel.
In one embodiment of this invention, the time of a frame picture of the display panel is less than or equal to 1.9 μ s.
In one embodiment of this invention, the multiple pixels being arranged above and below of an at least pixel behavior on the viewing area
Row, the signal inputting method for promoting display panel charge rate are to execute the primary grid signal respectively to each pixel column
Input step and the data signal input step.
In one embodiment of this invention, the multiple pixels being arranged above and below of an at least pixel behavior on the viewing area
Row, the signal inputting method for promoting display panel charge rate are from top to bottom sequentially to execute respectively to each pixel column once
The grid signal input step and the data signal input step.
In one embodiment of this invention, the sensing transistor is connected to the grid by detectable signal write-in point
Signal wire, the detectable signal write-in point is for one write-in grid signal of sensing transistor input or a detection grid letter
Number.
In one embodiment of this invention, one Organic Light Emitting Diode capacitor of the driving transistor series connection, the driving
Coupled in parallel has a storage capacitors.
In one embodiment of this invention, the driving transistor connects an anode voltage and a cathode voltage.
Compared with prior art, the signal inputting method that the present invention promotes display panel charge rate can be defeated in data signal
Enter step and a data signal is inputted to the side pixel of the pixel column on second time point respectively, and then exists
The third time point inputs a data signal, second time point and the third to the center pixel point of the pixel column
Time point enable there are the time difference data signal inputted more afterwards well avoid resistance/capacitance (Resistor/Capacitor,
R/C the problem of data signal charge rate deficiency caused by) postponing, and then it is able to ascend the picture that the display panel is manifested
The uniformity of brightness or color.
For above content of the invention can be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate institute's accompanying drawings, makees
Detailed description are as follows:
Detailed description of the invention
Fig. 1 is the schematic diagram of the display panel of the prior art.
Fig. 2 be prior art display panel on grid signal and data signal input timing curve graph, wherein the longitudinal axis be
Signal strength (unit is voltage or other indicate the unit of intensity), horizontal axis is time (unit us).
Fig. 3 is step flow chart of the invention.
Fig. 4 is the schematic diagram of display panel of the invention.
Fig. 5 is that the invention shows the grid signal on panel and data signal input timing curve graphs, and wherein the longitudinal axis is letter
Number intensity (unit is voltage or other indicate the unit of intensity), horizontal axis is time (unit us).
Fig. 6 is the circuit diagram of the gate line and data signal line on display panel of the invention.
Specific embodiment
Referring to figure 3., Fig. 3 is step flow chart of the invention.The signal that the present invention promotes 10 charge rate of display panel is defeated
Enter method, comprising: display panel provides step S01, grid signal input step S02 and data signal input step S03.
Referring to figure 4. and Fig. 5, Fig. 4 are the schematic diagram of display panel 10 of the invention, and Fig. 5 is that the invention shows panels 10
On grid (Gate) signal and data (Data) signal input timing curve graph, wherein the longitudinal axis be that (unit is electric to signal strength
The unit of pressure or other expression intensity), horizontal axis is time (unit us).
The display panel provides step S01, including provides a display panel 10, wherein being arranged on the display panel 10
There is a viewing area 100, at least pixel column R1, R2, R3 is defined on the viewing area 100, described pixel column R1, R2, R3 include
The one side pixel P1 and one for being located at 100 side of viewing area is located at the center pixel of 100 centre of viewing area
Point P2.
Please refer to Fig. 6, Fig. 6 be side pixel P1 on display panel of the invention and center pixel point P2 it is each
A connected circuit diagram.It is provided in step S01 in the display panel, each side pixel P1 and center pixel point
Each of P2 is separately connected a circuit, and the circuit includes a data signal line Data, a parallel data signal line
The sensing signal line Sense of Data and one vertically connects the data signal line Data's and sensing signal line Sense
Gate line Gate.A write-in crystal is connected between the data signal line Data and the sensing signal line Sense
Pipe TFT2, an a driving transistor TFT1 and sensing transistor TFT3.Said write transistor TFT2 passes through a data signal
The point D connection data signal line Data, the data signal point D, which is used to input a data to said write transistor TFT2, to be believed
Number, said write transistor TFT2 is written point WR by a grid signal and is connected on the gate line Gate, the grid
Pole signal is written point WR and is used for one write-in grid signal of said write transistor TFT2 input.The driving transistor TFT1 connects
Connect an an anode voltage OVDD and cathode voltage OVSS, one Organic Light Emitting Diode capacitor of the driving transistor TFT1 series connection
COLED.In addition, the driving transistor TFT1 is parallel with a storage capacitors Cst.The sensing transistor TFT3 passes through a detection letter
Number write-in point RD is connected to the gate line Gate, and the detectable signal write-in point RD is for the sensing transistor
One write-in grid signal of TFT3 input or a detection grid signal.
The grid signal input step S02, including simultaneously to described pixel column R1, R2, R3 on one first time point T11
The side pixel P1 the grid signal write-in point WR and center pixel point P2 the grid signal write
Access point WR inputs a write-in grid signal respectively.
The data signal input step S03, including on one second time point T12 to the institute of described pixel column R1, R2, R3
The data signal point D for stating side pixel P1 inputs a data signal, then in a third time point T13 to the pixel column
The data signal point D of the center pixel point P2 of R1, R2, R3 input a data signal, wherein the second time point T12
It is later than the first time point T11 and there is first time poor a, institute between the second time point T12 and the first time point T11
It states third time point T13 and is later than the first time point T11, and have one between the third time point T13 and the first time point T11
Second time difference.
In one embodiment of this invention, the third time point T13 is later than the second time point T12, the first time
Difference is less than the second time difference.In another embodiment of the invention, the third time point T13 is earlier than the second time point T12, institute
It states and poor was greater than for the second time difference at the first time.
In one embodiment of this invention, the grid signal input step S02 and the data signal input step
S03 is completed in a frame picture of the display panel 10.In one embodiment of this invention, the one of the display panel 10
The time of frame picture is less than or equal to 1.9 μ s.The time of the frame picture for being less than or equal to 1.9 μ s can correspond to 65 inch 8K
The superelevation image quality panel of resolution and screen turnover rate 120hz, the display picture of high image quality is presented.
In one embodiment of this invention, at least pixel column R1, R2, R3 on the viewing area 100 is above and below multiple
Pixel column R1, R2, R3 of arrangement, the signal inputting method for promoting 10 charge rate of display panel be to each pixel column R1,
R2, R3 execute the primary grid signal input step S02 and data signal input step S03 respectively.
In another embodiment of the invention, at least pixel column R1, R2, R3 on the viewing area 100 is on multiple
Pixel column R1, R2, R3 of lower arrangement, the signal inputting method for promoting 10 charge rate of display panel is from top to bottom sequentially right
Each pixel column R1, R2, R3 execute the primary grid signal input step S02 and the data signal input step respectively
S03。
In Fig. 5, WR_R1, WR_R2, WR_R3 respectively represent the pixel in wherein pixel column R1, R2, R3R1, R2, R3
The timing curve of grid signal is inputted on point P1, P2, Data respectively represents the timing of the input data signal on pixel P1, P2
Curve.
When the prior art is to 10 input signal of display panel, according to timing curve WR_R1 (P2) and timing curve WR_
R1 (P1) is it is found that grid signal is on one first time point T11T11 while to be input to the side pixel P1 and the center
Pixel P2.In addition, by according to timing curve Data (P2) and according to timing curve Data (P1) it is found that data signal is one
It is input to the side pixel P1 on second time point T12, and the data signal is on a third time point T13 described in input
Center pixel point P2.Therefore the first time point T11 of grid signal input, which is input to the side pixel P1 with data signal, has
It is poor at the first time, and the first time point T11 of grid signal input is input to the center pixel point P2 with data signal and has
Second time difference, data signal is input to the time point of the side pixel P1 and center pixel point P2, and there is also the time differences
(poor at the first time to subtract each other with the second time difference), causes the Data signal of the serious center pixel point P2 of RC retardation ratio to have the sufficient time
Charging promotes the brightness for the picture that display panel 10 is manifested or the uniformity of color.
Following table two be the charge rate of each pixel column R1, R2, R3 of the invention and the side pixel P1 in each column and in
Entreat the current unevenness evenness of pixel P2.
By the comparison of above-mentioned table two and the table one of prior art it is found that the present invention promotes the signal of 10 charge rate of display panel
Input method improves the charge rate of pixel significantly, and the pixel significantly reduced at all pixels point is shown not
The uniformity.
Compared with prior art, the signal inputting method of promotion 10 charge rate of display panel of the invention can be believed in data
Number input step S03 is defeated to the side pixel P1 of described pixel column R1, R2, R3 on the second time point T12 respectively
Enter a data signal, and then defeated in the center pixel point P2 of the third time point T13 to described pixel column R1, R2, R3
Enter a data signal, the second time point T12 and the third time point T13 believe the data inputted more afterwards
Data signal charge rate is insufficient caused by number capable of well avoiding resistance/capacitance (Resistor/Capacitor, RC) from postponing asks
Topic, and then it is able to ascend the brightness for the picture that the display panel 10 is manifested or the uniformity of color.
Claims (10)
1. a kind of signal inputting method for promoting display panel charge rate, it is characterised in that: the promotion display panel charge rate
Signal inputting method include:
Display panel provides step, including provides a display panel, wherein a viewing area is provided on the display panel, it is described
An at least pixel column is defined on viewing area, the pixel column includes a side pixel and one for being located at the viewing area side
Positioned at the center pixel point of the viewing area centre, wherein the side pixel and center pixel point it is each
It is a to be separately connected a gate line and a data signal line, wherein each side pixel and center pixel point
Each is separately connected a circuit, and the circuit includes the sensing signal of a data signal line, a parallel data signal line
Line and one vertically connect the data signal line and the sensing signal line gate line, in the data signal line
A writing transistor, a driving transistor and a sensing transistor, said write are connected between the sensing signal line
Transistor connects the data signal line by a data signal point, and the data signal point is for defeated to said write transistor
Enter a data signal, said write transistor is connected on the gate line by grid signal write-in point, the grid
Pole signal write-in point is for one write-in grid signal of said write transistor input；
Grid signal input step, including described in the side pixel on one first time point while to the pixel column
The grid signal write-in point of grid signal write-in point and center pixel point inputs a write-in grid signal respectively；With
And
Data signal input step, including on one second time point to the data of the side pixel of the pixel column
Signaling point inputs a data signal, then believes in the data of the third time point to the center pixel point of the pixel column
Number point inputs a data signal, wherein second time point is later than first time point and when second time point is with described first
Have a first time poor between point, the third time point is later than first time point, and the third time point and described first
There is one second time difference between time point.
2. promoting the signal inputting method of display panel charge rate as described in claim 1, which is characterized in that when the third
Point is later than second time point, and the first time is poor less than the second time difference.
3. promoting the signal inputting method of display panel charge rate as described in claim 1, which is characterized in that when the third
For point earlier than second time point, the first time is poor to be greater than for the second time difference.
4. promoting the signal inputting method of display panel charge rate as described in claim 1, which is characterized in that the grid letter
Number input step and the data signal input step are completed in a frame picture of the display panel.
5. promoting the signal inputting method of display panel charge rate as claimed in claim 4, which is characterized in that the display surface
The time of one frame picture of plate is less than or equal to 1.9 μ s.
6. promoting the signal inputting method of display panel charge rate as described in claim 1, which is characterized in that the viewing area
On the multiple pixel columns being arranged above and below of an at least pixel behavior, it is described promoted display panel charge rate signal inputting method be
Execute the primary grid signal input step and the data signal input step respectively to each pixel column.
7. promoting the signal inputting method of display panel charge rate as described in claim 1, which is characterized in that the viewing area
On the multiple pixel columns being arranged above and below of an at least pixel behavior, it is described promoted display panel charge rate signal inputting method be
From top to bottom sequentially execute the primary grid signal input step and data signal input respectively to each pixel column
Step.
8. promoting the signal inputting method of display panel charge rate as described in claim 1, which is characterized in that the sensing is brilliant
Body pipe is connected to the gate line by detectable signal write-in point, and the detectable signal write-in point is for the sensing
One write-in grid signal of transistor input or a detection grid signal.
9. promoting the signal inputting method of display panel charge rate as described in claim 1, which is characterized in that the driving is brilliant
Body pipe one Organic Light Emitting Diode capacitor of series connection, the driving coupled in parallel have a storage capacitors.
10. promoting the signal inputting method of display panel charge rate as described in claim 1, which is characterized in that the driving
Transistor connects an anode voltage and a cathode voltage.
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| CN201910367129.9A CN110021269A (en) | 2019-05-05 | 2019-05-05 | Promote the signal inputting method of display panel charge rate |
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| CN201910367129.9A CN110021269A (en) | 2019-05-05 | 2019-05-05 | Promote the signal inputting method of display panel charge rate |
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Application publication date: 20190716 |