CN110503909A - The method for managing temperature of sequence controller and display panel drive - Google Patents
The method for managing temperature of sequence controller and display panel drive Download PDFInfo
- Publication number
- CN110503909A CN110503909A CN201810479186.1A CN201810479186A CN110503909A CN 110503909 A CN110503909 A CN 110503909A CN 201810479186 A CN201810479186 A CN 201810479186A CN 110503909 A CN110503909 A CN 110503909A
- Authority
- CN
- China
- Prior art keywords
- pixel
- sub
- grayscale value
- sequence controller
- display panel
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 230000008859 change Effects 0.000 claims description 18
- 238000010586 diagram Methods 0.000 description 48
- AXDJCCTWPBKUKL-UHFFFAOYSA-N 4-[(4-aminophenyl)-(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]aniline;hydron;chloride Chemical compound Cl.C1=CC(=N)C(C)=CC1=C(C=1C=CC(N)=CC=1)C1=CC=C(N)C=C1 AXDJCCTWPBKUKL-UHFFFAOYSA-N 0.000 description 19
- 238000001816 cooling Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 7
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 5
- 102100040862 Dual specificity protein kinase CLK1 Human genes 0.000 description 4
- 229960001506 brilliant green Drugs 0.000 description 3
- HXCILVUBKWANLN-UHFFFAOYSA-N brilliant green cation Chemical compound C1=CC(N(CC)CC)=CC=C1C(C=1C=CC=CC=1)=C1C=CC(=[N+](CC)CC)C=C1 HXCILVUBKWANLN-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 102100040858 Dual specificity protein kinase CLK4 Human genes 0.000 description 2
- 101000749294 Homo sapiens Dual specificity protein kinase CLK1 Proteins 0.000 description 2
- 101000749298 Homo sapiens Dual specificity protein kinase CLK4 Proteins 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/04—Display protection
- G09G2330/045—Protection against panel overheating
Abstract
A kind of method for managing temperature of sequence controller and display panel drive.The method for managing temperature of display panel drive includes detecting step and grayscale value set-up procedure.Whether the former display picture of sequence controller detection has specific pixel pattern, and specific pixel pattern includes the first sub-pixel and the second sub-pixel adjacent on the same data line of display panel and in timing.The grayscale value of first sub-pixel has highest grayscale value, and the grayscale value of the second sub-pixel has minimum gray scale value.When sequence controller detects that former display picture has specific pixel pattern, sequence controller carries out grayscale adjustment operation to original display picture, thus avoids display panel drive that excess temperature event occurs.
Description
Technical field
The present invention relates to a kind of method for managing temperature, in particular to a kind of to execute display panel driving by sequence controller
The method of the temperature management of device.
Background technique
In general, when display device plays image frame, due to the multiple sub- pictures being connected on same data line
Element generally requires to be written into different grayscale, so the display panel drive (such as source electrode driver) of display device often needs
Constantly to change the current potential of driving voltage (pixel voltage) on the same data line.However, in the same data
Voltage swing (voltage swing) on line is bigger, it is meant that display panel drive needs to expend more power to drive
The same data line.The power that display panel drive expends is more, it will usually cause the temperature of display panel drive
Raising.When display panel drive when the temperature is excessively high, high temperature is likely to result in the damage of internal circuit, and then causes to show
Device can not normal operation.
In view of this, it is necessary to provide a kind of method for managing temperature, to reduce the temperature of display panel drive.
Summary of the invention
The present invention provides the method for managing temperature of a kind of sequence controller and display panel drive, can avoid display panel
Excess temperature event occurs for driver.
The embodiment of the present invention provides a kind of method for managing temperature of display panel drive.The display panel drive
Method for managing temperature include detecting step and grayscale value set-up procedure.The detecting step is to detect original by sequence controller
Whether display picture has specific pixel pattern.Wherein, specific pixel pattern includes on the same data line of display panel
And adjacent the first sub-pixel and the second sub-pixel in timing, the grayscale value of the first sub-pixel have highest grayscale value, and second
The grayscale value of sub-pixel has minimum gray scale value.The grayscale value set-up procedure is to detect former display picture in sequence controller
When with specific pixel pattern, grayscale adjustment operation is carried out to obtain adjusted display picture to original display picture by sequence controller
Face, and adjusted display picture is supplied to display panel drive, excess temperature event occurs to avoid display panel drive.Institute
Stating grayscale adjustment operation includes: to turn the grayscale value of the first sub-pixel down and tune up the grayscale value of the second sub-pixel, or turn the down
The grayscale value of one sub-pixel is to low grayscale value.
The embodiment of the present invention provides a kind of sequence controller, for controlling the display panel driver.The timing control
Device includes detection circuit and control circuit.Detection circuit shows whether picture has specific pixel pattern for detecting original,
Middle specific pixel pattern includes the first sub-pixel and the second son adjacent on the same data line of display panel and in timing
The grayscale value of pixel, the first sub-pixel has minimum gray scale value with the grayscale value of highest grayscale value and the second sub-pixel.Control
Circuit is coupled to detection circuit.The control circuit carries out grayscale adjustment operation to original display picture for deciding whether to obtain
Adjusted display picture, and adjusted display picture is supplied to display panel drive, to avoid display panel drive hair
Raw excess temperature event.Wherein, when sequence controller detects that former display picture has specific pixel pattern, sequence controller is carried out
Grayscale adjustment operation.The grayscale adjustment operates the ash for including: the grayscale value for turning the first sub-pixel down and tuning up the second sub-pixel
Rank value, or the grayscale value of the first sub-pixel is turned down to low grayscale value.
The embodiment of the present invention provides a kind of method for managing temperature of display panel drive.The display panel drive
Method for managing temperature include detecting step and timing set-up procedure.The detecting step is former aobvious by sequence controller detection
Show whether picture has specific pixel pattern.Wherein, specific pixel pattern include positioned at display panel same data line on and
Adjacent the first sub-pixel and the second sub-pixel in timing, the grayscale value of the first sub-pixel have highest grayscale value, and the second son
The grayscale value of pixel has minimum gray scale value.The timing set-up procedure is to detect that former display picture has in sequence controller
It is suitable by loading of the sequence controller adjustment to the first sub-pixel and the second sub-pixel loading gray scale voltage when specific pixel pattern
To avoid display panel drive excess temperature event occurs for sequence.
The embodiment of the present invention provides a kind of sequence controller, for controlling the display panel driver.The timing control
Device includes detection circuit and control circuit.Detection circuit shows whether picture has specific pixel pattern for detecting original,
Middle specific pixel pattern includes the first sub-pixel and the second son adjacent on the same data line of display panel and in timing
The grayscale value of pixel, the first sub-pixel has minimum gray scale value with the grayscale value of highest grayscale value and the second sub-pixel.Control
Circuit is coupled to detection circuit.The control circuit is for deciding whether that adjustment is loaded into ash to the first sub-pixel and the second sub-pixel
The loading sequence of rank voltage, occurs excess temperature event to avoid display panel drive.Wherein, when sequence controller detects former show
When showing that picture has specific pixel pattern, sequence controller adjusts the loading sequence of specific pixel pattern.
Based on above-mentioned, the temperature management side of sequence controller and display panel drive described in various embodiments of the present invention
Method, can be by the specific pixel pattern on monitoring display panel, and adjusts each sub-pixel in the specific pixel pattern in due course
Grayscale value or adjustment are loaded into the loading sequence of gray scale voltage to each sub-pixel, to avoid the operating temperature liter of display panel drive
It is high.Therefore, the method for managing temperature can effectively avoid display panel drive generation excess temperature event.
To enable features described above and advantage of the invention to be clearer and more comprehensible, special embodiment below, and it is detailed to cooperate attached drawing to make
Carefully it is described as follows.
Detailed description of the invention
Fig. 1 is circuit box (circuitblock) signal according to the execution method for managing temperature of the embodiment of the present invention
Figure.
Fig. 2 is the circuit box schematic diagram of the subpixel configuration framework of explanatory diagram 1.
Fig. 3 is the flow diagram according to the method for managing temperature of the display panel drive of the embodiment of the present invention.
Fig. 4 A is the signal according to the subpixel configuration framework of display panel shown in another embodiment of the present invention explanatory diagram 1
Figure.
Fig. 4 B-4C is the schematic diagram for illustrating grayscale adjustable strategies according to the embodiment of the present invention.
Fig. 5 A is the signal according to the subpixel configuration framework of display panel shown in another embodiment of the present invention explanatory diagram 1
Figure.
Fig. 5 B-5C is the schematic diagram for illustrating grayscale adjustable strategies according to another embodiment of the present invention.
Fig. 6 A is the signal according to the subpixel configuration framework of display panel shown in one more embodiment of the present invention explanatory diagram 1
Figure.
Fig. 6 B-6C is the schematic diagram for illustrating grayscale adjustable strategies according to another embodiment of the present invention.
Fig. 7 A is the signal according to the more subpixel configuration framework of display panel shown in an embodiment explanatory diagram 1 of the invention
Figure.
Fig. 7 B-7C is the schematic diagram for illustrating grayscale adjustable strategies according to one more embodiment of the present invention.
Fig. 8 is the circuit box schematic diagram according to the execution method for managing temperature of another embodiment of the present invention.
Fig. 9 is shown according to the process of the method for managing temperature of the display panel drive of the embodiment of the present invention explanatory diagram 8
It is intended to.
Figure 10 A is to be transported according to the sub-pixel of display panel shown in the embodiment of the present invention explanatory diagram 8 with the first driving method
The schematic diagram of work.
Figure 10 B is the signal of the gray scale voltage amplitude of oscillation on data line D3, D4 according to the embodiment of the present invention explanatory diagram 10A
Figure.
Figure 10 C is the timing diagram according to the first driving method of the embodiment of the present invention explanatory diagram 10A.
Figure 11 A is the sub-pixel according to display panel shown in the embodiment of the present invention explanatory diagram 10A with the second driving method
The schematic diagram of running.
Figure 11 B is the signal of the gray scale voltage amplitude of oscillation on data line D3, D4 according to the embodiment of the present invention explanatory diagram 11A
Figure.
Figure 11 C is the timing diagram according to the second driving method of the embodiment of the present invention explanatory diagram 11A.
Symbol description
11: sequence controller
12: display panel drive
13,13T: display panel
14,141: original display picture
15: adjusted display picture
111: detection circuit
112: control circuit
121: source electrode driver
122: gate drivers
131~139: sub-pixel
1001,1011: the first sub-pixel
1002,1012: the second sub-pixel
1003,1013: third sub-pixel
1004,1014: the four sub-pixel
1300~1303: display panel
B: blue subpixels
B1~B4: block
CLK, CLK1~CLK4: clock signal
D1~Dn: data line
DR(Odd)、DG(Odd)、DB(Odd): odd data line
DR(Even)、DG(Even)、DB(Even): even data line
G: green sub-pixels
G1~Gm: grid line
P1~P6: pixel
R: red sub-pixel
S10, S20, S30, S40: method and step
SD1~SD4: the output signal of source electrode driver
W: white sub-pixels
Specific embodiment
" coupling (or connection) " word used in present specification full text (including claim) can refer to any
Direct or indirect connection means.For example, if it is described herein that first device coupling (or connection) then should in second device
Be construed as the first device can be directly connected to the second device or the first device can by other devices or certain
It plants connection means and is coupled indirectly to the second device.In addition, all possible places, in the drawings and embodiments using identical
Element/component/step of label represents same or like part.Identical label is used in different embodiments or uses identical term
Element/component/step can be with cross-referenced related description.
Fig. 1 is the circuit box schematic diagram according to the execution method for managing temperature of the embodiment of the present invention.As shown in Figure 1,
Sequence controller 11 can control display panel drive 12 to export multiple pixel voltages to display panel 13.It is driven according to display panel
The driving operation of dynamic device 12, display panel 13 can show image.According to design requirement, display panel 13 can be liquid crystal display
(Liquid Crystal Display, LCD) panel, Organic Light Emitting Diode (Organic Light Emitting Diode,
OLED) display panel, electrophoresis showed (Electro-Phoretic Display, EPD) panel or Plasmia indicating panel
(Plasma Display Panel, PDP).
Sequence controller 11 includes detection circuit 111 and control circuit 112.Detection circuit 111 can detect display panel
Whether 13 former display picture (original display frame) 14 has specific pixel pattern (specific pixel
pattern).Control circuit 112 is coupled to detection circuit 111.Control circuit 112 can decide whether to carry out original display picture 14
Grayscale adjustment operation, to obtain adjusted display picture 15.Adjusted display picture 15 can be supplied to display by control circuit 112
To avoid display panel drive 12 excess temperature event occurs for panel driver 12.When control circuit 112 decides not to perform grey contrast
When whole operation, original display picture 14 can be supplied to display panel drive 12 and be used as adjusted display picture by control circuit 112
15。
For example, Fig. 2 is the circuit box schematic diagram of the subpixel configuration framework of explanatory diagram 1.As shown in Fig. 2, display
Panel 13 may include the pixel array that multiple sub-pixels (such as sub-pixel 131~139 shown in Fig. 2) are formed.Implement shown in Fig. 2
In example, display panel drive 12 may include source electrode driver 121 and gate drivers 122.Sequence controller 11 is coupled to source
Driver 121 and gate drivers 122.Gate drivers 122 can be sequentially provided grid under the control of sequence controller 11
Driving signal (scanning signal) to gate lines G 1, G2, G3 ..., Gm, (do not shown with opening the transistor of corresponding sub-pixel
Out).Based on the timing of the exported gate drive signal of gate drivers 122, source electrode driver 121 provides corresponding data in due course
Driving signal to data line D1, D2, D3 ..., Dn, corresponding sub-pixel is charged into pixel voltage appropriate.Therefore, it shows
Show that the sub-pixel 131~139 of panel 13 can show different grayscale values by the adjustment of pixel voltage.
Whether the former display picture 14 that sequence controller 11 can monitor display panel 13 has specific pixel pattern.The spy
Determining pattern of pixels may include the first sub-pixel and the second son adjacent on the same data line of display panel 13 and in timing
Pixel, the grayscale value of the first sub-pixel has highest grayscale value, and the grayscale value of the second sub-pixel has minimum gray scale value.To scheme
For data line D1 shown in 2 because sub-pixel 131 and sub-pixel 132 are connected to same data line D1, and sub-pixel 131 with
Sub-pixel 132 is adjacent on driver' s timing, therefore sub-pixel 131 can be considered as first sub-pixel, and sub-pixel 132 can be with
It is considered as second sub-pixel.Alternatively, sub-pixel 132 can be considered as first sub-pixel, and sub-pixel 131 can be considered as institute
State the second sub-pixel.In extreme pattern of pixels example, what the odd-numbered grid line of display panel 13 shown in Fig. 2 was connected
All pixels can be considered as first sub-pixel, and all pixels that even-numbered grid line is connected can be considered as described
Two sub-pixels.Or all pixels that are connected of even-numbered grid line can be considered as first sub-pixel, and odd number
The all pixels that grid line is connected can be considered as second sub-pixel.In original display picture 14, when first son
The grayscale value of pixel be highest grayscale value, and the grayscale value of second sub-pixel be minimum gray scale value when, original display picture 14
It can be judged as that there is the specific pixel pattern.
When the detection circuit 111 of sequence controller 11 detects that former display picture 14 has the specific pixel pattern,
The control circuit 112 of sequence controller 11 will carry out grayscale adjustment operation, to obtain adjusted display picture 15.The ash contrast
Whole operation includes the first strategy and/or is the second strategy.Control circuit 112 can be tactful wherein using the first strategy and second
One or all, to adjust the former display picture 14 with the specific pixel pattern.First strategy are as follows: turn described the down
The grayscale value of one sub-pixel and the grayscale value for tuning up second sub-pixel.Second strategy are as follows: turn the described first sub- picture down
The grayscale value of element is to some low grayscale value.The low grayscale value can be determined depending on design requirement.For example, the low grayscale value
It can be a grayscale value in grayscale value 0~10.In further embodiments, the low grayscale value can be grayscale value 230
A grayscale value in~250.The present embodiment will assume that the low grayscale value is 240.
Illustrate the first implementation of strategies example herein.By taking data line D1 as an example, it is assumed that the grayscale value of sub-pixel 131 is most
High gray value (such as 255), and the grayscale value of sub-pixel 132 is minimum gray scale value (such as 0).Institute can be used in control circuit 112
It states the first strategy and the grayscale value of sub-pixel 132 grayscale value of sub-pixel 131 and is tuned up to turn down with identical step amount.The step
Rank amount can be determined depending on design requirement.Control circuit 112 can disposably adjust the grayscale value of sub-pixel, such as by sub-pixel
131 grayscale value is reduced to first object grayscale value (such as 240) by 255, and the grayscale value of sub-pixel 132 is increased by 0
To the second target gray scale value (such as 15).Control circuit 112 can also during multiple pictures the picture of muptiple-use adjustment (gradual change)
The grayscale value of element, such as gradually reduce the grayscale value of sub-pixel 131 to 250,245,240 by 255 during different pictures, with
And the grayscale value of sub-pixel 132 is stepped up by 0 to 5,10,15 during different pictures.
Illustrate the second implementation of strategies example herein.Original can be shown picture by the control circuit 112 of sequence controller 11
Face 14 is divided into multiple blocks, and wherein each of these blocks is with multiple pixels.The control circuit 112 of sequence controller 11
The grayscale value of one sub-pixel of each block of these blocks can be turned down to some low grayscale value.For example,
During the same picture, control circuit 112 can be by the grayscale value of a sub-pixel in each block from most high ash
Rank value (such as 255) is changed to low grayscale value (such as 240), but does not change the grayscale of other sub-pixels in each block
Value.For the display panel 13 shown in Fig. 2, it is assumed that sub-pixel 131~139 is divided into the same block, wherein showing in original
In picture 14, the grayscale value of sub-pixel 131,134,137,133,136,139 is highest grayscale value (such as 255), and sub-pixel
132,135,138 grayscale value is minimum gray scale value (such as 0).The control circuit 112 of sequence controller 11 can be from sub-pixel
The sub-pixel with highest grayscale value, such as selection sub-pixel 131 are chosen at random in 131~139.In the same picture phase
Between in, the grayscale value of sub-pixel 131 can be reduced to 240 by 255 by control circuit 112, but not changed in the same block
Other sub-pixels 132~139 grayscale value, even if also the grayscale value of sub-pixel 134,137,133,136,139 remains original
Grayscale value 255, and the grayscale value of sub-pixel 132,135,138 is made to remain former grayscale value 0.And so on, in next picture
In period, control circuit 112 can choose at random another sub-pixel with highest grayscale value from sub-pixel 131~139,
Such as selection sub-pixel 136.Then the grayscale value of chosen sub-pixel 136 is reduced to 240 by 255, but do not changed same
The grayscale value of other sub-pixels in a block, even if also the grayscale value of sub-pixel 131,134,137,133,139 remains original
Grayscale value 255, and the grayscale value of sub-pixel 132,135,138 is made to remain former grayscale value 0.
Fig. 3 is the flow diagram according to the method for managing temperature of the display panel drive of the embodiment of the present invention.Please
Referring to Fig.1 with Fig. 3, in step S10 (detecting step), sequence controller 11 can be by detection circuit 111 to display panel 13
Former display picture 14 detected, judge the former display picture 14 with the presence or absence of specific pixel pattern to enter step S20.
The specific pixel pattern includes adjacent the first sub-pixel and the on the same data line of display panel 13 and in timing
Two sub-pixels, the grayscale value of first sub-pixel has highest grayscale value, and the grayscale value of second sub-pixel has most
Low grayscale value.The implementation detail of step S10 and step S20 is referred in Fig. 1 and embodiment illustrated in fig. 2 about detection circuit
111 related description is analogized, and so it will not be repeated.
When sequence controller 11 detects that former display picture 14 does not have the specific pixel pattern, (step S20's sentences
Disconnected result is "No"), original display picture 14 can be supplied to display surface as adjusted display picture 15 by sequence controller 11
Sheet drive 12.When sequence controller 11 detects that former display picture 14 has the specific pixel pattern, (step S20's sentences
Disconnected result is "Yes"), sequence controller 11 will carry out grayscale adjustment operation (step S30, grayscale value adjustment to original display picture 14
Step), to obtain adjusted display picture 15, and adjusted display picture 15 is supplied to display panel drive 12, with
Avoid display panel drive 12 that excess temperature event occurs.The implementation detail of step S30 is referred to Fig. 1 and embodiment illustrated in fig. 2
In analogize about the related description of control circuit 112, so it will not be repeated.
In another embodiment, whether the detection circuit 111 of sequence controller 11 is in addition to detecting the specific pixel pattern
It is presented in former display picture 14, further detects color pattern shown by specific pixel pattern, and sequence controller 11
Control circuit 112 can then select the strategy of grayscale adjustment operation according to the color pattern.
For example, Fig. 4 A (is marked in Figure 4 A according to display panel 13 shown in another embodiment of the present invention explanatory diagram 1
It is shown as the schematic diagram of subpixel configuration framework 1300).Fig. 4 B-4C is to illustrate grayscale adjustable strategies according to the embodiment of the present invention
Schematic diagram.To ask schema succinct, the display panel 1300 of Fig. 4 A only shows the 1~G3 of gate lines G and partial number of part
According to line D1~D7.Display panel 1300 include with array manner arrangement multiple red sub-pixel R, multiple green sub-pixels G with
Multiple blue subpixels B.1~G3 of gate lines G is connected separately with 6 sub-pixels, and this 6 sub-pixels are according to red sub-pixel
R, the sequence arrangement of green sub-pixels G, blue subpixels B.In Fig. 4 A, the sign symbol for being shown in each sub-pixel is respectively indicated
The driving voltage of positive polarity and negative polarity.For liquid crystal display panel, if continuing the voltage of identical polar (polarity)
It is applied to pixel electrode, liquid crystal molecule may in turn result in the image flicker or dimmed of display picture there is a phenomenon where polarizing.
Therefore, the polarity (as shown in the sign symbol in Fig. 4 A) of driving voltage would generally be periodically changed in liquid crystal display panel, with
Maintain display quality.
In the facility environment of " display panel 1300 is as display panel 13 shown in Fig. 1 shown in application drawing 4A ", the spy
Determining pattern of pixels can be the color pattern of " black and white horizontal line is alternate " and/or is the color sample of " the green vertical line of fuchsin is alternate "
Formula.The color pattern of " black and white horizontal line is alternate " refers to that odd-numbered horizontal line is black line and even-numbered horizontal line is
White line or odd-numbered horizontal line are white line and even-numbered horizontal line is black line, as shown in Figure 4 B.It is described that " fuchsin is green to hang down
Straight line is alternate " color pattern refer to that odd-numbered vertical line is fuchsin (or pinkish red, magenta) line and even-numbered hangs down
Straight line is green line or odd-numbered vertical line is green line and even-numbered vertical line is magenta line, as shown in Figure 4 C.Timing control
Whether the detection circuit 111 of device 11 processed can detecte former display picture 14 according to the color pattern for having specific pixel pattern.
Fig. 4 B shows an example of the grayscale combination that each sub-pixel is presented in display panel 1300 shown in Fig. 4 A.
It is combined based on grayscale shown in Fig. 4 B, original shown in Fig. 4 B shows that picture 141 is the picture of one " black and white horizontal line is alternate ".It please refers to
Fig. 4 A and Fig. 4 B, when original shows that color pattern shown in Fig. 4 B is presented in picture 14 (being denoted as 141 in figure 4b), timing control
Device 11, which will test former display picture 141, has the specific pixel pattern arranged along grid line (horizontal line) direction.For example,
Pixel P1~P3 shown in Fig. 4 B respectively includes 1 red sub-pixel R, 1 green sub-pixels G and 1 blue subpixels B.Such as figure
Shown in 4B, the RGB grayscale value of pixel P1 and pixel P3 are (255,255,255), therefore pixel P1 and pixel P3 can all be shown
White.The RGB grayscale value of pixel P2 is (0,0,0), therefore pixel P2 can show black.Therefore, if sequence controller 11 detects
Specific pixel pattern composed by white wire and black line is just upwardly formed in grid line (horizontal line) to original display picture 141
When, indicate that excess temperature event may occur for the source electrode driver 121 (display panel drive 12) in Fig. 2.At this point, timing control
Device 11 need to show that picture 141 carries out grayscale adjustment operation to original shown in Fig. 4 B, thus start cooling mechanism.The grayscale adjustment behaviour
The implementation detail of work is referred to the related description of Fig. 1, Fig. 2 and embodiment illustrated in fig. 3 to analogize.
Identical step amount can be used to adjust the grayscale value of each sub-pixel in specific pixel pattern in the grayscale adjustment operation.
For pixel P1 and pixel P2 shown in Fig. 4 B, sequence controller 11 can be by the RGB grayscale value of pixel P1 by highest grayscale value
(255,255,255) are reduced to first object grayscale value, such as grayscale value (160,160,160).In addition to this, sequence controller
The RGB grayscale value of pixel P2 can be also increased to the second target gray scale value, such as grayscale value by minimum gray scale value (0,0,0) by 11
(95,95,95).The numerical value 0,95,160 and 255 is only exemplary citing, and the embodiment party of the present embodiment should not be limited with this
Formula.Other pixels in display panel 1300 shown in Fig. 4 A the grayscale adjustment operation be referred to pixel P1 shown in Fig. 4 B with
The related description of pixel P2 is analogized, and so it will not be repeated.
In addition, in order to avoid human eye discovers image gray-scale level adjustment, sequence controller 11 can set figure in some application examples
The grayscale value (255,255,255) of each sub-pixel is via gradual change during multiple pictures to first object ash in pixel P1 shown in 4B
Rank value, and in pixel P2 shown in Fig. 4 B each sub-pixel grayscale value (0,0,0) via gradual change during the multiple picture to
Two target gray scale values.For example, sequence controller 11 can set the grayscale value of each sub-pixel in pixel P1 and pixel P2 via 3
Gradual change is to target gray scale value during a picture.The target gray scale value can be determined according to design requirement.It is assumed herein that described
Target gray scale value is (210,210,210) and (15,15,15).In first picture (frame), it is assumed that the RGB ash of pixel P1
Rank value is (255,255,255), and the RGB grayscale value of pixel P2 is (0,0,0).Sequence controller 11 can be in the second screen
The RGB grayscale value of pixel P1 is adjusted to (220,220,220), and the RGB grayscale value of pixel P2 is adjusted to (5,5,5).It connects
, in the third screen, the RGB grayscale value of pixel P1 is adjusted to (215,215,215), and the RGB grayscale value of pixel P2
It is adjusted to (10,10,10).Finally, in the 4th picture, the RGB grayscale value of pixel P1 be adjusted to (210,210,
210), and the RGB grayscale value of pixel P2 is adjusted to (15,15,15).
Fig. 4 C shows showing for another grayscale combination that each sub-pixel in display panel 1300 shown in Fig. 4 A is presented
Example.It is combined based on grayscale shown in Fig. 4 C, original shown in Fig. 4 C shows that picture 141 is the picture of one " the green vertical line of fuchsin is alternate ".
A and Fig. 4 C referring to figure 4., when showing that color pattern shown in Fig. 4 C is presented in picture 141, sequence controller 11 will test aobvious
Show that picture 141 has the specific pixel pattern arranged along data line (vertical line) direction.For example, as shown in Figure 4 C, pixel
The RGB grayscale value of P1, pixel P2 and pixel P3 are (255,0,255), therefore pixel P1, pixel P2 and pixel P3 can all be shown
Carmetta (magenta).The RGB grayscale value of pixel P4, pixel P5 and pixel P6 are (0,255,0), thus pixel P4, pixel P5 with
Pixel P6 can show green.Therefore, if sequence controller 11 detects display picture 141 on data line (vertical line) direction
When specific pixel pattern composed by formed fuchsin colo(u)r streak and green line, the 121 (display surface of source electrode driver in Fig. 2 is indicated
Sheet drive 12) excess temperature event may occur.At this point, sequence controller 11 need to show that picture 141 carries out to original shown in Fig. 4 C
Grayscale adjustment operation, thus starts cooling mechanism.
The implementation detail of the grayscale adjustment operation is referred to Fig. 1, Fig. 2 and the related description of embodiment illustrated in fig. 3 is come
Analogize.For example, original display picture 141 can be divided into multiple blocks by sequence controller 11, and wherein these blocks is each
It is a that there are multiple pixels.It is assumed herein that pixel P1, pixel P2 and pixel P3 are divided into the same block.In the same block
In, the control circuit 112 of sequence controller 11 can choose at random one from the sub-pixel of pixel P1, pixel P2 and pixel P3
Sub-pixel with highest grayscale value, such as the red sub-pixel of selection pixel P1.During the same picture, control circuit
The grayscale value of the red sub-pixel of pixel P1 can be reduced to 240 by 255 by 112, but not change its in the same block
The grayscale value of his sub-pixel.And so on, during next picture in, control circuit 112 can from pixel P1, pixel P2 with
Another sub-pixel with highest grayscale value is chosen at random in the sub-pixel of pixel P3, then by the grayscale of chosen sub-pixel
Value is reduced to 240 by 255, but does not change the grayscale value of other sub-pixels in the same block.
Fig. 5 A is according to display panel 13 (being denoted as 1301 in fig. 5) shown in another embodiment of the present invention explanatory diagram 1
Subpixel configuration framework schematic diagram.Fig. 5 B-5C is to illustrate showing for grayscale adjustable strategies according to another embodiment of the present invention
It is intended to.To ask schema succinct, the display panel 1301 of Fig. 5 A only shows the 1~G7 of gate lines G and partial data line of part
D1~D4.Display panel 1301 include with array manner arrangement multiple red sub-pixel R, multiple green sub-pixels G with it is multiple
Blue subpixels B.Data line D1~D4 is connected separately with 6 sub-pixels, and this 6 sub-pixels are according to blue subpixels B, green
The sequence arrangement of sub-pixels G, red sub-pixel R.In Fig. 5 A, the arrow for being shown in each sub-pixel indicates the driving of sub-pixel
Timing.
In the facility environment of " display panel 1301 is as display panel 13 shown in Fig. 1 shown in application drawing 5A ", the spy
Determining pattern of pixels can be the color pattern of " fuchsin clear water horizontal line is alternate " and/or is the color sample of " black and white vertical line is alternate "
Formula.The color pattern of " fuchsin clear water horizontal line is alternate " refers to, odd-numbered horizontal line is magenta line and even-numbered level
Line is green line or odd-numbered horizontal line is green line and even-numbered horizontal line is magenta line, as shown in Figure 5 B.It is described " black
White vertical line is alternate " color pattern refer to that odd-numbered vertical line is black line and even-numbered vertical line is white line, Huo Zhe
Odd number vertical line is white line and even-numbered vertical line is black line, as shown in Figure 5 C.The detection circuit 111 of sequence controller 11
It can detecte the color pattern whether former display picture 14 has specific pixel pattern.
Fig. 5 B shows the grayscale combination that each sub-pixel is presented in display panel 1301 shown in Fig. 5 A.Based on Fig. 5 B institute
Show that grayscale combines, original shown in Fig. 5 B shows that picture 141 is the picture of one " fuchsin clear water horizontal line is alternate ".A and figure referring to figure 5.
5B, when original shows that color pattern shown in Fig. 5 B is presented in picture 14 (being denoted as 141 in figure 5B), sequence controller 11 will be examined
Measuring former display picture 141 has the specific pixel pattern arranged along grid line (horizontal line) direction.For example, shown in Fig. 5 B
Pixel P1 and pixel P2 respectively include 1 red sub-pixel R, 1 green sub-pixels G and 1 blue subpixels B.Such as Fig. 5 B institute
Show, the RGB grayscale value of pixel P1 is (255,0,255), therefore pixel P1 can show carmetta (magenta).The RGB of pixel P2
Grayscale value is (0,255,0), therefore pixel P2 can show green.Therefore, if sequence controller 11 detects former display picture 141
When grid line (horizontal line) is just upwardly formed specific pixel pattern composed by fuchsin colo(u)r streak and green line, indicate in Fig. 2
Excess temperature event may occur for source electrode driver 121 (display panel drive 12).At this point, sequence controller 11 need to be to Fig. 5 B institute
Show that former display picture 141 carries out grayscale adjustment operation, thus starts cooling mechanism.The implementation detail of the grayscale adjustment operation can
With referring to Fig.1, the related description of Fig. 2 and embodiment illustrated in fig. 3 analogizes.
For example, original display picture 141 can be divided into multiple blocks by sequence controller 11, and wherein these blocks is every
One has multiple pixels.It is assumed herein that pixel P1 and pixel P2 are divided into the same block.In the same block, timing
The control circuit 112 of controller 11 can choose at random one from the sub-pixel of pixel P1 and pixel P2 has highest grayscale value
Sub-pixel, such as selection pixel P1 red sub-pixel.During the same picture, control circuit 112 can be by pixel
The grayscale value of the red sub-pixel of P1 is reduced to 240 by 255, but does not change the grayscale of other sub-pixels in the same block
Value.And so on, during next picture in, control circuit 112 can be from the sub-pixel of pixel P1 and pixel P2 arbitrarily
It selects another with the sub-pixel of highest grayscale value, the grayscale value of chosen sub-pixel is then reduced to 240 by 255, but
It is the grayscale value for not changing other sub-pixels in the same block.
Fig. 5 C shows showing for another grayscale combination that each sub-pixel in display panel 1301 shown in Fig. 5 A is presented
Example.It is combined based on grayscale shown in Fig. 5 C, original shown in Fig. 5 C shows that picture 141 is the picture of one " black and white vertical line is alternate ".Please
Referring to Fig. 5 A and 5C, when showing that color pattern shown in Fig. 5 C is presented in picture 141, sequence controller 11 will test display picture
Face 141 has the specific pixel pattern arranged along data line (vertical line) direction.For example, as shown in Figure 5 C, pixel P1
RGB grayscale value is (255,255,255), therefore pixel P1 can show white.The RGB grayscale value of pixel P3 be represented by (0,0,
0), therefore pixel P3 can show black.Therefore, if sequence controller 11 detects that former display picture 141 is (vertical in data line
Line) side when being upwardly formed specific pixel pattern composed by white wire and black line, indicates that the source electrode driver 121 in Fig. 2 is (aobvious
Show panel driver 12) excess temperature event may occur.At this point, sequence controller 11 need to show picture 141 to original shown in Fig. 5 C
Grayscale adjustment operation is carried out, cooling mechanism is thus started.The implementation detail of the grayscale adjustment operation is referred to shown in Fig. 4 B
The related description of embodiment is analogized, and so it will not be repeated.
Fig. 6 A is according to display panel 13 (being denoted as 1302 in fig. 6) shown in one more embodiment of the present invention explanatory diagram 1
Subpixel configuration framework schematic diagram.Fig. 6 B-6C is to illustrate showing for grayscale adjustable strategies according to another embodiment of the present invention
It is intended to.The display panel 1302 of Fig. 6 A include with array manner arrangement multiple red sub-pixel R, multiple green sub-pixels G with
Multiple blue subpixels B, and form the pixel structure of 2D2G (i.e. two data lines and two scan lines).1~G4 of gate lines G points
Be not connected with 4 sub-pixels, and this 4 sub-pixels be according to red sub-pixel R, green sub-pixels G, blue subpixels B it is suitable
Sequence arrangement.Odd data line DR(Odd)With even data line DR(Even)It is separately connected 2 red sub-pixel R.Likewise, odd number number
According to line DG(Odd)With even data line DG(Even)It is separately connected 2 green sub-pixels G, and odd data line DB(Odd)With even data
Line DB(Even)It is separately connected 2 blue subpixels B.In Fig. 6 A, the sign symbol for being shown in each sub-pixel respectively indicates anode
The driving voltage of property and negative polarity.
In the facility environment of " display panel 1302 is as display panel 13 shown in Fig. 1 shown in application drawing 6A ", the spy
Determining pattern of pixels can be " double Heisui River horizontal line double blank horizontal lines are alternate " color pattern and/or is " the green point of fuchsin point is alternate " face
Tinctorial pattern formula." the green point of fuchsin point the is alternate " color pattern refers to, the picture around it when two vertical adjacent pixels are fuchsin point
Element is green point, and its surrounding pixel is fuchsin point when two vertical adjacent pixels are green, as shown in Figure 6B.Institute
" double Heisui River horizontal line double blank horizontal lines are alternate " color pattern is stated to refer to, i-th article of horizontal line and i+1 article horizontal line be white line and the
I+2 item and the i-th+3 horizontal lines are black line, and wherein i is positive integer, as shown in Figure 6 C.The detection circuit 111 of sequence controller 11
Former display picture 14 be can detecte whether according to the color pattern for having specific pixel pattern.
Fig. 6 B shows a kind of grayscale combination that each sub-pixel in display panel 1302 shown in Fig. 6 A is presented.Based on figure
The combination of grayscale shown in 6B, original shown in Fig. 6 B show that picture 141 is the picture of one " the green point of fuchsin point is alternate ".Please refer to Fig. 6 A with
Fig. 6 B, when original shows that color pattern shown in Fig. 6 B is presented in picture 14 (being denoted as 141 in fig. 6b), sequence controller 11 will
Detect that former display picture 141 has specific pixel pattern.For example, pixel P1~P4 shown in Fig. 6 B respectively includes 1
Red sub-pixel R, 1 green sub-pixels G and 1 blue subpixels B.As shown in Figure 6B, the RGB grayscale of pixel P1 and pixel P2
Value is (255,0,255), therefore pixel P1 and pixel P2 all show carmetta (magenta).The RGB of pixel P3 and pixel P4
Grayscale value is (0,255,0), therefore pixel P3 and pixel P4 all show green.Therefore, if sequence controller 11 detects former show
When showing that picture 141 has the specific pixel pattern of " the green point of fuchsin point is alternate ", the 121 (display surface of source electrode driver in Fig. 2 is indicated
Sheet drive 12) excess temperature event may occur, therefore sequence controller 11 will carry out grayscale adjustment operation to display picture 141.
The implementation detail of the grayscale adjustment operation is referred to the related description of Fig. 1, Fig. 2 and embodiment illustrated in fig. 3 to analogize.
For example, original display picture 141 can be divided into multiple blocks by sequence controller 11, and wherein these blocks is every
One has multiple pixels.It is assumed herein that pixel P1, pixel P2 and pixel P3 are divided into the same block.In the same block
In, the control circuit 112 of sequence controller 11 can choose at random one from the sub-pixel of pixel P1, pixel P2 and pixel P3
Sub-pixel with highest grayscale value, such as the red sub-pixel of selection pixel P1.During the same picture, control circuit
The grayscale value of the red sub-pixel of pixel P1 can be reduced to 240 by 255 by 112, but not change its in the same block
The grayscale value of his sub-pixel.And so on, during next picture in, control circuit 112 can from pixel P1, pixel P2 with
Another sub-pixel with highest grayscale value is chosen at random in the sub-pixel of pixel P3, then by the grayscale of chosen sub-pixel
Value is reduced to 240 by 255, but does not change the grayscale value of other sub-pixels in the same block.
Fig. 6 C shows the another of the different grayscale combination that each sub-pixel in display panel 1302 shown in Fig. 6 A is presented
Kind example.It is combined based on grayscale shown in Fig. 6 C, original shown in Fig. 6 C shows that picture 141 is " double Heisui River horizontal line double blank a horizontal lines
It is alternate " picture.If sequence controller 11 detects the specific of above-mentioned " double Heisui River horizontal line double blank horizontal lines are alternate " color pattern
When pattern of pixels, sequence controller 11 will carry out grayscale adjustment operation to display picture 141, thus start cooling mechanism.It is described
The implementation detail of grayscale adjustment operation is referred to the related description of Fig. 4 B illustrated embodiment to analogize, and is not repeating herein.
Fig. 7 A is according to more display panel 13 (being denoted as 1303 in fig. 7) shown in an embodiment explanatory diagram 1 of the invention
Subpixel configuration framework schematic diagram.Fig. 7 B-7C is to illustrate showing for grayscale adjustable strategies according to one more embodiment of the present invention
It is intended to.To ask schema succinct, the display panel 1303 of Fig. 7 A only shows the 1~G8 of gate lines G and partial data line of part
D1~D5.Display panel 1303 includes with multiple red sub-pixel R of array manner arrangement, multiple green sub-pixels G, Duo Gelan
Sub-pixels B and multiple white sub-pixels W.In Fig. 7 A, be shown in each sub-pixel sign symbol respectively indicate positive polarity with
The driving voltage of negative polarity.
In the facility environment of " display panel 1303 is as display panel 13 shown in Fig. 1 shown in application drawing 7A ", the spy
Determine pattern of pixels can be " fuchsin picture " color pattern, " brilliant green picture " color pattern, " azarin picture " color pattern and/
Or " dark green picture " color pattern." fuchsin picture " color pattern refers to that all pixels are carmetta namely RGBW
Grayscale value is (255,0,255,0), as shown in Figure 7 B." brilliant green picture " color pattern refers to that all pixels are brilliant green
Color namely RGBW grayscale value are (0,255,0,255)." azarin picture " color pattern refers to that all pixels are azarin
Color namely RGBW grayscale value are (255,0,0,255)." dark green picture " color pattern refers to that all pixels are viridescent
Color (Cyan) namely RGBW grayscale value are (0,255,255,0), as seen in figure 7 c.The detection circuit 111 of sequence controller 11 can
To detect the color pattern whether former display picture 14 has specific pixel pattern.
Fig. 7 B shows a kind of grayscale combination that each sub-pixel in display panel 1303 shown in Fig. 7 A is presented.Based on figure
The combination of grayscale shown in 7B, original shown in Fig. 7 B show that picture 141 is the picture of one " fuchsin picture ".Fig. 7 A and Fig. 7 B are please referred to,
Original display picture 14 (being denoted as 141 in figure 7b) can be divided into multiple blocks by sequence controller 11, wherein these blocks
Each is with multiple pixels.It is assumed herein that former display picture 141 includes 4 block B1~B4.When original display picture 141 is presented
When color pattern shown in Fig. 7 B, sequence controller 11 will test the specific picture that former display picture 141 has " fuchsin picture "
Sketch map case.As shown in Figure 7 B, in the same block (such as block B1), the control circuit 112 of sequence controller 11 can be from
The upper left corner in the sub-pixel with highest grayscale value, such as selection block B1 is chosen at random in sub-pixel in block B1
Red sub-pixel.During the same picture, control circuit 112 can be by the ash of the red sub-pixel in the upper left corner in block B1
Rank value is reduced to 240 by 255, but does not change the grayscale value of other sub-pixels in the same block B1.And so on, under
During one picture, control circuit 112 can choose at random another with highest grayscale from the sub-pixel in block B1
Then the grayscale value of chosen sub-pixel is reduced to 240 by 255 by the sub-pixel of value, but do not change in the same block B1
Other sub-pixels grayscale value.The details of operation of other blocks B2~B4 is referred to the related description of block B1 to analogize,
So it will not be repeated.
Fig. 7 C shows showing for another grayscale combination that each sub-pixel in display panel 1303 shown in Fig. 7 A is presented
Example.It is combined based on grayscale shown in Fig. 7 C, original shown in Fig. 7 C shows that picture 141 is the color pattern of one " dark green picture ".If when
When sequence controller 11 detects that former display picture 141 forms the specific pixel pattern of " dark green picture " shown in Fig. 4 C, timing control
Device 11 processed will carry out grayscale adjustment operation to original display picture 141, and mode of operation can refer to the side of the adjustment of grayscale described in Fig. 7 B
Formula is not repeating herein.
In the various embodiments described above, if sequence controller 11 detects that former display picture 141 has the specific pixel figure
When case, it can also be used and downgrade the mode of frequency to avoid the source electrode driver 121 in Fig. 2 that excess temperature event occurs.For example, false
If showing that the picture update rate (frame rate) of picture 141 is 60Hz, sequence controller 11 can will show the picture of picture 141
Turnover rate is down to 45Hz by 60Hz, so that slows down source electrode driver 121 heats rate.
Fig. 8 is the circuit box schematic diagram according to the execution method for managing temperature of another embodiment of the present invention.Such as Fig. 8 institute
Show, sequence controller 11 includes detection circuit 111 and control circuit 112.Detection circuit 111 can detect display panel 13T's
Whether original display picture 14 has specific pixel pattern (specific pixel pattern).The specific pixel pattern can wrap
The first sub-pixel and the second sub-pixel adjacent on the same data line of display panel 13T and in timing are included, wherein first
The grayscale value of sub-pixel has highest grayscale value, and the grayscale value of the second sub-pixel has minimum gray scale value.
Control circuit 112 is coupled to detection circuit 111.Control circuit 112 can decide whether to first sub-pixel with
The loading sequence that second sub-pixel is loaded into gray scale voltage is adjusted, and excess temperature thing occurs to avoid display panel drive 12
Part.When the decision of control circuit 112 does not adjust the loading sequence, original display picture 14 can be supplied to aobvious by control circuit 112
Show panel driver 12, and when detection circuit 111 detects that former display picture 14 has the specific pixel pattern, control electricity
The exportable clock signal clk in road 112 come adjust it is described be loaded into gray scale voltage loading sequence, to start cooling mechanism.Such as:
Control circuit 112 can first be loaded into the gray scale voltage of the second sub-pixel, reload the gray scale voltage of the first sub-pixel, or be first loaded into
The gray scale voltage of first sub-pixel reloads the gray scale voltage of the second sub-pixel.
Fig. 9 is shown according to the process of the method for managing temperature of the display panel drive of the embodiment of the present invention explanatory diagram 8
It is intended to.Fig. 8 and Fig. 9 are please referred to, in step S10 (detecting step), sequence controller 11 can be shown by 111 Duis of detection circuit
The former display picture 14 of panel 13T detected, and judges former display picture 14 with the presence or absence of specific picture to enter step S20
Sketch map case.The specific pixel pattern includes the first son adjacent on the same data line of display panel 13T and in timing
Pixel and the second sub-pixel, the grayscale value of first sub-pixel have highest grayscale value, and the grayscale of second sub-pixel
Value has minimum gray scale value.The implementation detail of step S10 and step S20 is referred in Fig. 1 and embodiment illustrated in fig. 2 about inspection
The related description of slowdown monitoring circuit 111 is analogized, and so it will not be repeated.
When sequence controller 11 detects that former display picture 14 does not have the specific pixel pattern, (step S20's sentences
Disconnected result is "No"), sequence controller 11 can not adjust the loading sequence of the gray scale voltage of sub-pixel and original is shown picture
14 are supplied to display panel drive 12.When sequence controller 11 detects that former display picture 14 has the specific pixel pattern
When (judging result of step S20 be "Yes"), sequence controller 11 will carry out timing adjustment in step S40 (timing set-up procedure)
Operation, the loading sequence for allowing sequence controller 11 that can be loaded into gray scale voltage with the second sub-pixel to the first sub-pixel in time are adjusted
It is whole, excess temperature event occurs to avoid display panel drive 12.
Figure 10 A is according to the sub-pixel of display panel 13T shown in the embodiment of the present invention explanatory diagram 8 with the first driving method
The schematic diagram of running.To ask schema succinct, the display panel 13T of Figure 10 A only shows 1~G8 of gate lines G and the part of part
Data line D1~D5.Display panel 13T includes with multiple red sub-pixel R of array manner arrangement, multiple green sub-pixels
G, multiple blue subpixels B and multiple white sub-pixels W.In the facility environment of display panel 13T shown in application drawing 10A, institute
Stating specific pixel pattern may include the first sub-pixel, the second sub-pixel, third sub-pixel and the 4th sub-pixel, first son
Pixel and the third sub-pixel can have highest grayscale value (such as 255), and second sub-pixel and the 4th sub- picture
Element can have minimum gray scale value (such as 0).When display panel drive 12 is sequentially driven the first sub-pixel, the second sub-pixel,
When three sub-pixels and four sub-pixels (as shown in arrow direction in Figure 10 A), excess temperature event will occur for display panel drive 12.
Figure 10 B is the signal of the gray scale voltage amplitude of oscillation on data line D3, D4 according to the embodiment of the present invention explanatory diagram 10A
Figure.Please refer to the first sub-pixel 1001 (red sub-pixel R) and third sub-pixel shown in Figure 10 A and Figure 10 B, on data line D3
1003 (red sub-pixel R) have a high gray voltage potential, therefore the first sub-pixel 1001 (red sub-pixel R) and third sub-pixel
High gray value (such as highest grayscale value 255) can be presented in 1003 (red sub-pixel R).The second sub-pixel 1002 on data line D3
(green sub-pixels G) and the 4th sub-pixel 1004 (green sub-pixels G) have a low ash rank voltage potential, therefore the second sub-pixel 1002
Low grayscale value (such as minimum gray scale value 0) can be presented in (green sub-pixels G) and the 4th sub-pixel 1004 (green sub-pixels G).
Likewise, the first sub-pixel 1011 (blue subpixels B) and third sub-pixel 1013 (blue on data line D4
Pixel B) high gray value (such as highest grayscale value 255) can be presented.1012 (white sub-pixels of the second sub-pixel on data line D4
W low grayscale value (such as minimum gray scale value 0)) can be presented with the 4th sub-pixel 1014 (white sub-pixels W).As display panel 13T
Sub-pixel with the running of the first driving method of Figure 10 A when, since the gray scale voltage amplitude of oscillation on data line D3, D4 is excessive, display
Panel driver 12 needs to expend the sub-pixel that more power carry out driving data line D3, D4, so that display panel drive 12 can
Excess temperature event can occur.
In order to improve excess temperature event caused by the first driving method of Figure 10 A, sequence controller 11 can be believed by clock
The adjustment of number CLK changes the driving method of display panel drive 12, thus starts cooling mechanism.For example, Figure 11 A is
The signal operated according to the sub-pixel of display panel 13T shown in one embodiment of the invention explanatory diagram 10A with the second driving method
Figure.In Figure 11 A.Sequence controller 11 can control display panel drive 12 using the second driving method come driving data line
To avoid display panel drive 12 excess temperature event occurs for the sub-pixel of D3, D4.As shown in arrow direction in Figure 11 A, with data
For line D3, display panel drive 12 will be sequentially driven the first sub-pixel 1001 (red sub-pixel R), the second sub-pixel 1002
(green sub-pixels G), the 4th sub-pixel 1004 (green sub-pixels G) and third sub-pixel 1003 (red sub-pixel R).With data
For line D4, display panel drive 12 will be sequentially driven the first sub-pixel 1011 (blue subpixels B), the second sub-pixel 1012
(white sub-pixels W), the 4th sub-pixel 1014 (white sub-pixels W) and third sub-pixel 1013 (blue subpixels B).
Figure 11 B is the signal of the gray scale voltage amplitude of oscillation on data line D3, D4 according to the embodiment of the present invention explanatory diagram 11A
Figure.As shown in Figure 11 B, when the sub-pixel on data line D3, D4 is with the second driving method, on data line D3, D4 first to
The sequence (255,0,255,0) as shown in Figure 10 B is adjusted to figure by the loading sequence of grayscale value corresponding to the 4th sub-pixel
Sequence (255,0,0,255) shown in 11B.Sub-pixel is carried out that is, the second driving method can elongate display panel drive 12
The time interval of charge and discharge, thus can avoid display panel drive 12 and excess temperature event occurs.
It will be described below how sequence controller 11 changes display panel drive 12 by the adjustment of clock signal clk
Driving method.Figure 10 C is the timing diagram according to the first driving method of the embodiment of the present invention explanatory diagram 10A.Figure 11 C be according to
According to the timing diagram of the second driving method of the embodiment of the present invention explanatory diagram 11A.In Figure 10 C and Figure 11 C, CLK1~CLK4 table
The clock signal clk of diagram 8, SD1~SD4 indicate the output signal of the source electrode driver of display panel drive 12.Work as display
When panel driver 12 is operated using the first driving method and excess temperature event occurs, sequence controller 11 can be to first to fourth son
The loading sequence that pixel is loaded into gray scale voltage is adjusted.Such as: sequence controller 11 can be by the loading of the specific pixel pattern
(SD1~SD4's is suitable as illustrated in figure 10 c from " the first sub-pixel, the second sub-pixel, third sub-pixel, the 4th sub-pixel " for sequence
Sequence) be adjusted to " the first sub-pixel, the second sub-pixel, the 4th sub-pixel, third sub-pixel " (SD1~SD4's as shown in Figure 11 C
Sequentially).Therefore, the gray scale voltage drive waveforms of Figure 11 B can be presented in first to fourth sub-pixel on data line D3, D4, thus
Elongate the time interval that charge and discharge are carried out to sub-pixel.
In addition, in other embodiments, first to fourth sub-pixel can also be loaded into grayscale electricity by sequence controller 11
Pressure loading sequence be adjusted to from " the first sub-pixel, the second sub-pixel, third sub-pixel, the 4th sub-pixel " " the second sub-pixel,
First sub-pixel, third sub-pixel, the 4th sub-pixel ", or be adjusted to " the first sub-pixel, third sub-pixel, the second sub-pixel,
4th sub-pixel ", or it is adjusted to " the 4th sub-pixel, the second sub-pixel, third sub-pixel, the first sub-pixel ", described in changing
The driving sequence of first to fourth sub-pixel, and then reach the demand for allowing display panel drive 12 to cool down.
In conclusion the temperature management side of sequence controller and display panel drive described in various embodiments of the present invention
Method, can be by adjusting the grayscale value of sub-pixel each on display panel, and/or is the switching frequency (picture for reducing pixel voltage
Turnover rate), the operating temperature to avoid display panel drive (such as source electrode driver) is excessively high.In addition, the timing control
The also adjustable loading sequence that gray scale voltage is loaded into each sub-pixel of device, to avoid display panel drive (such as source drive
Device) operating temperature it is excessively high.Therefore, the method for managing temperature can effectively avoid display panel drive generation excess temperature event.
Although the present invention is disclosed as above with embodiment, it is not intended to limit the invention, any affiliated technology neck
Technical staff in domain, without departing from the spirit and scope of the present invention, should can make it is a little change and retouch,
Therefore protection scope of the present invention should regard subject to defined in the attached claims.
Claims (15)
1. a kind of method for managing temperature of display panel drive, comprising:
Detecting step detects whether former display picture has specific pixel pattern by sequence controller, wherein the specific pixel figure
Case includes the first sub-pixel and the second sub-pixel adjacent on the same data line of display panel and in timing, first son
The grayscale value of pixel has highest grayscale value, and the grayscale value of second sub-pixel has minimum gray scale value；And
Grayscale value set-up procedure, when the sequence controller detects that the original shows that picture has the specific pixel pattern, by this
Sequence controller shows that picture carries out grayscale adjustment operation to obtain adjusted display picture to the original, and by the adjusted display
Picture is supplied to the display panel drive, and excess temperature event occurs to avoid the display panel drive,
Wherein grayscale adjustment, which operates, includes:
It turns the grayscale value of first sub-pixel down and tunes up the grayscale value of second sub-pixel；Or
The grayscale value of first sub-pixel is turned down to low grayscale value.
2. method for managing temperature as described in claim 1, the wherein detecting step further include:
Color pattern shown by the specific pixel pattern is detected as the sequence controller.
3. method for managing temperature as claimed in claim 2, the wherein grayscale value set-up procedure further include:
The strategy of grayscale adjustment operation is selected by the sequence controller according to the color pattern.
4. method for managing temperature as described in claim 1, wherein grayscale adjustment operation further include:
By the sequence controller with identical step amount by the grayscale value of first sub-pixel be reduced to first object grayscale value and
The grayscale value of second sub-pixel is increased to the second target gray scale value.
5. method for managing temperature as claimed in claim 4, wherein the grayscale value of first sub-pixel is via multiple picture phases
Between gradual change to the first object grayscale value, and the grayscale value of second sub-pixel via gradual change during multiple picture to this
Two target gray scale values.
6. method for managing temperature as described in claim 1, wherein grayscale adjustment operation further include:
The original is shown that picture is divided into multiple blocks by the sequence controller, wherein each of multiple block is with multiple
Pixel；And
By the sequence controller by the grayscale value of a sub-pixel of each block of multiple block from the highest grayscale value
It is changed to the minimum gray scale value.
7. a kind of sequence controller, for controlling the display panel driver, which includes:
Detection circuit, for detecting whether former display picture has specific pixel pattern, wherein the specific pixel pattern includes position
In the first sub-pixel and the second sub-pixel adjacent on the same data line of display panel and in timing, the ash of first sub-pixel
Rank value has minimum gray scale value with the grayscale value of highest grayscale value and second sub-pixel；And
Control circuit is coupled to the detection circuit, shows that picture carries out grayscale adjustment operation to obtain to the original for deciding whether
Adjusted display picture is obtained, and the adjusted display picture is supplied to the display panel drive, to avoid the display panel
Excess temperature event occurs for driver, wherein when the sequence controller detects that the original shows that picture has the specific pixel pattern,
The sequence controller carries out grayscale adjustment operation,
Wherein grayscale adjustment, which operates, includes:
It turns the grayscale value of first sub-pixel down and tunes up the grayscale value of second sub-pixel；Or
The grayscale value of first sub-pixel is turned down to low grayscale value.
8. sequence controller as claimed in claim 7, wherein the sequence controller detects shown by the specific pixel pattern
Color pattern, the sequence controller select the strategy of grayscale adjustment operation according to the color pattern.
9. sequence controller as claimed in claim 7, wherein the sequence controller is with identical step amount by first sub-pixel
The grayscale value be reduced to first object grayscale value and the grayscale value of second sub-pixel be increased to the second target gray scale value.
10. sequence controller as claimed in claim 9, wherein the grayscale value of first sub-pixel is via during multiple pictures
Gradual change to the first object grayscale value, and the grayscale value of second sub-pixel via gradual change during multiple picture to this second
Target gray scale value.
11. sequence controller as claimed in claim 7, wherein the original is shown that picture is divided into multiple areas by the sequence controller
Block, each of multiple block is with multiple pixels, and the sequence controller is by one of each block of multiple block
The grayscale value of sub-pixel is changed to the minimum gray scale value from the highest grayscale value.
12. a kind of method for managing temperature of display panel drive, comprising:
Detecting step detects whether former display picture has specific pixel pattern by sequence controller, wherein the specific pixel figure
Case includes the first sub-pixel and the second sub-pixel adjacent on the same data line of display panel and in timing, first son
The grayscale value of pixel has highest grayscale value, and the grayscale value of second sub-pixel has minimum gray scale value；And
Timing set-up procedure, when the sequence controller detects that the original shows that picture has the specific pixel pattern, when by this
Sequence controller adjustment is loaded into the loading sequence of gray scale voltage to first sub-pixel and second sub-pixel, to avoid the display surface
Excess temperature event occurs for sheet drive.
13. method for managing temperature as claimed in claim 12, wherein the specific pixel pattern includes being located at the display panel
Adjacent first sub-pixel, second sub-pixel, third sub-pixel and the 4th sub-pixel on same data line and in timing, should
First sub-pixel and the third sub-pixel have the highest grayscale value, and second sub-pixel and the 4th sub-pixel have this most
Low grayscale value, the timing set-up procedure further include:
By the sequence controller by the loading sequence of the specific pixel pattern from " first sub-pixel, is somebody's turn to do at second sub-pixel
Third sub-pixel, the 4th sub-pixel " is adjusted to " first sub-pixel, second sub-pixel, the 4th sub-pixel, the third
Sub-pixel ", or it is adjusted to " second sub-pixel, first sub-pixel, the third sub-pixel, the 4th sub-pixel ", or adjustment
For " first sub-pixel, the third sub-pixel, second sub-pixel, the 4th sub-pixel ", or it is adjusted to " the 4th sub- picture
Element, second sub-pixel, the third sub-pixel, first sub-pixel ".
14. a kind of sequence controller, for controlling the display panel driver, which includes:
Detection circuit, for detecting whether former display picture has specific pixel pattern, wherein the specific pixel pattern includes position
In the first sub-pixel and the second sub-pixel adjacent on the same data line of display panel and in timing, the ash of first sub-pixel
Rank value has minimum gray scale value with the grayscale value of highest grayscale value and second sub-pixel；And
Control circuit is coupled to the detection circuit, for deciding whether that adjustment carries first sub-pixel and second sub-pixel
The loading sequence for entering gray scale voltage, occurs excess temperature event to avoid the display panel drive, wherein when the sequence controller is examined
When measuring original display picture has the specific pixel pattern, the loading which adjusts the specific pixel pattern is suitable
Sequence.
15. sequence controller as claimed in claim 14, wherein the specific pixel pattern includes positioned at the same of the display panel
Adjacent first sub-pixel, second sub-pixel, third sub-pixel and the 4th sub-pixel on one data line and in timing, this
One sub-pixel and the third sub-pixel have the highest grayscale value, and second sub-pixel has this minimum with the 4th sub-pixel
Grayscale value, the sequence controller by the loading of specific pixel pattern sequence from " first sub-pixel, second sub-pixel,
Third sub-pixel, the 4th sub-pixel " be adjusted to " first sub-pixel, second sub-pixel, the 4th sub-pixel, this
Three sub-pixels ", or it is adjusted to " second sub-pixel, first sub-pixel, the third sub-pixel, the 4th sub-pixel ", or adjust
Whole is " first sub-pixel, the third sub-pixel, second sub-pixel, the 4th sub-pixel ", or is adjusted to " the 4th sub- picture
Element, second sub-pixel, the third sub-pixel, first sub-pixel ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479186.1A CN110503909A (en) | 2018-05-18 | 2018-05-18 | The method for managing temperature of sequence controller and display panel drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810479186.1A CN110503909A (en) | 2018-05-18 | 2018-05-18 | The method for managing temperature of sequence controller and display panel drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110503909A true CN110503909A (en) | 2019-11-26 |
Family
ID=68584967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810479186.1A Pending CN110503909A (en) | 2018-05-18 | 2018-05-18 | The method for managing temperature of sequence controller and display panel drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110503909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113421519A (en) * | 2021-07-02 | 2021-09-21 | 北京奕斯伟计算技术有限公司 | Driving circuit, driving method, display device, and computer-readable storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080053608A (en) * | 2006-12-11 | 2008-06-16 | 엘지디스플레이 주식회사 | Liquid crystal display device and method driving of the same |
| US20120013591A1 (en) * | 2010-07-19 | 2012-01-19 | Jongwoo Kim | Liquid crystal display and method for driving the same |
| CN102637404A (en) * | 2011-12-23 | 2012-08-15 | 友达光电股份有限公司 | Display and method for generating output image by display |
| CN103390394A (en) * | 2013-07-30 | 2013-11-13 | 深圳市华星光电技术有限公司 | Liquid crystal panel and driving method thereof |
| CN104505047A (en) * | 2014-12-31 | 2015-04-08 | 深圳市华星光电技术有限公司 | Display driving method, circuit and liquid crystal display |
| CN104575440A (en) * | 2015-02-15 | 2015-04-29 | 京东方科技集团股份有限公司 | Display driving circuit, driving method of display driving circuit and display device |
| CN104849888A (en) * | 2015-05-05 | 2015-08-19 | 深圳市华星光电技术有限公司 | Driving method of LCD (Liquid Crystal Display) panel |
| CN107665692A (en) * | 2017-11-16 | 2018-02-06 | 深圳市华星光电技术有限公司 | Liquid crystal display pixel drive circuit and image element driving method |
-
2018
- 2018-05-18 CN CN201810479186.1A patent/CN110503909A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080053608A (en) * | 2006-12-11 | 2008-06-16 | 엘지디스플레이 주식회사 | Liquid crystal display device and method driving of the same |
| US20120013591A1 (en) * | 2010-07-19 | 2012-01-19 | Jongwoo Kim | Liquid crystal display and method for driving the same |
| CN102637404A (en) * | 2011-12-23 | 2012-08-15 | 友达光电股份有限公司 | Display and method for generating output image by display |
| CN103390394A (en) * | 2013-07-30 | 2013-11-13 | 深圳市华星光电技术有限公司 | Liquid crystal panel and driving method thereof |
| CN104505047A (en) * | 2014-12-31 | 2015-04-08 | 深圳市华星光电技术有限公司 | Display driving method, circuit and liquid crystal display |
| CN104575440A (en) * | 2015-02-15 | 2015-04-29 | 京东方科技集团股份有限公司 | Display driving circuit, driving method of display driving circuit and display device |
| CN104849888A (en) * | 2015-05-05 | 2015-08-19 | 深圳市华星光电技术有限公司 | Driving method of LCD (Liquid Crystal Display) panel |
| CN107665692A (en) * | 2017-11-16 | 2018-02-06 | 深圳市华星光电技术有限公司 | Liquid crystal display pixel drive circuit and image element driving method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113421519A (en) * | 2021-07-02 | 2021-09-21 | 北京奕斯伟计算技术有限公司 | Driving circuit, driving method, display device, and computer-readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10802327B2 (en) | Liquid crystal display device and driving method thereof | |
| EP2711919B1 (en) | Display driving method | |
| CN105957492B (en) | Display panel and driving method of display panel | |
| KR101287209B1 (en) | Driving circuit for liquid crystal display device and method for driving the same | |
| WO2018121306A1 (en) | Liquid crystal display device | |
| US8648883B2 (en) | Display apparatus and method of driving the same | |
| EP2113903A2 (en) | Backlight driving circuit and method for driving the same | |
| US9852698B2 (en) | Display apparatus and driving method thereof using a time/space division scheme | |
| JP4901437B2 (en) | Liquid crystal display device and driving method thereof | |
| WO2013069515A1 (en) | Display device and method for driving same | |
| JP2008076416A (en) | Driving device for display panel, display panel, display device with the same, and driving method for display panel | |
| JP2008268887A (en) | Image display system | |
| US20140125644A1 (en) | Display panel and driving method thereof, and display apparatus | |
| KR101386266B1 (en) | Frame rate control unit, method thereof and liquid crystal display device having the same | |
| WO2011065063A1 (en) | Liquid crystal display device and method for driving a liquid crystal display device | |
| US20120098818A1 (en) | Liquid crystal display device and driving method of the same | |
| KR101212168B1 (en) | LCD and drive method thereof | |
| KR101630330B1 (en) | Liquid crystal display device and method for driving the same | |
| KR102198250B1 (en) | Display apparatus and driving method thereof | |
| KR101497407B1 (en) | driving method of liquid crystal display device | |
| TWI657423B (en) | Timing controller and temperature management method for display panel driver | |
| CN110503909A (en) | The method for managing temperature of sequence controller and display panel drive | |
| JP2009251331A (en) | Liquid crystal display device | |
| KR102062914B1 (en) | 3 primary color display device and pixel data rendering method of thereof | |
| JPH0869264A (en) | Liquid crystal display device and its drive system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191126 |