CN106782411B - Precharge time regulating device, method, display driver circuit and display device - Google Patents
Precharge time regulating device, method, display driver circuit and display device Download PDFInfo
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- CN106782411B CN106782411B CN201710095664.4A CN201710095664A CN106782411B CN 106782411 B CN106782411 B CN 106782411B CN 201710095664 A CN201710095664 A CN 201710095664A CN 106782411 B CN106782411 B CN 106782411B
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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
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (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)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention provides a kind of precharge time regulating device, method, display driver circuit and display device.The precharge time regulating device, applied to liquid crystal display, it include: polarity upset signal judging unit, for generating precharge control signal when the current potential continuous N frame for determining practical polarity upset signal is all negative level or when the continuous N frame of current potential for determining the practical polarity upset signal is all positive level；And data latch control unit, connect with the polarity upset signal judging unit, for when the precharge control signal is received, changing the waveform of data latch control signal by control, to control the precharge time for shortening respective frame；M and N is the positive integer greater than 1.The present invention solves the problems, such as the flashing bad phenomenon occurred in the prior art.
Description
Technical field
The present invention relates to display actuation techniques field more particularly to a kind of precharge time regulating device, method, display drives
Dynamic circuit and display device.
Background technique
Now with LCD (Liquid Crystal Display, liquid crystal display) product using more and more extensive, respectively
Attention of the kind LCD product quality by user, display image quality quality already become user's focus of attention.Work as liquid crystal display
Panel charges when showing a frame picture, by grid drive chip to data line, but each frame data will not be charged to saturation completely,
POL (polarity upset) signal can on determination data line data voltage polarity, but in certain timing nodes, can generate when adjacent
The identical situation of two frames (or multiframe) picture POL signal polarity, the polarity of data voltage will be identical, and the charging time is different, this
The brightness of two frame pictures can change, and can generate the bigger phenomenon of a later frame picture brightness, lead to flashing bad phenomenon occur.
Summary of the invention
The main purpose of the present invention is to provide a kind of precharge time regulating device, method, display driver circuit and show
Showing device solves to generate in the prior art in certain timing nodes when adjacent two frames (or multiframe) picture POL (polarity upset)
The polarity of the identical situation of signal polarity, data voltage will be identical, and the charging time is different, and the brightness of this two frames picture has change
The problem of changing, will lead to appearance flashing bad phenomenon.
In order to achieve the above object, it the present invention provides a kind of precharge time regulating device, is set applied to liquid crystal display
It is standby, comprising:
Polarity upset signal judging unit, for being all negative when the current potential continuous N frame for determining practical polarity upset signal
Level or when the continuous N frame of current potential for determining the practical polarity upset signal is all positive level generates preliminary filling electric control letter
Number；And
Data latch control unit, connect with the polarity upset signal judging unit, receive the preliminary filling for working as
When electric control signal, change the waveform of data latch control signal by control, to control the precharge time for shortening respective frame；
M and N is the positive integer greater than 1.
When implementation, the polarity upset signal judging unit includes:
Standard polarity energizing signal memory module, for standard polarity energizing signal to be stored in advance；
Practical polarity upset signal detection module, for detecting actual polarity upset signal；And
Polarity upset signal comparison module compares to obtain the actual polarity upset signal and the standard pole for working as
Property energizing signal does not generate the precharge control signal simultaneously.
When implementation, the data latch control unit and include:
Control module is connect with the polarity upset signal comparison module, receives the preliminary filling electric control letter for working as
Number when export corresponding modulation control signal；And
Modulation module is connect with the control module, for the control modulation institute when receiving the modulation control signal
Data latch control signal is stated, to control the precharge time for shortening respective frame.
When implementation, the modulation control signal includes fm control signal；The modulation module includes frequency modulation submodule；
The frequency modulation submodule is connect with the control module, receives the fm control signal time control specifically for working as
System reduces the frequency of the data latch control signal, to control the precharge time for shortening respective frame.
When implementation, the modulation control signal includes duty cycle adjustment control signal；
The modulation module includes duty cycle adjustment submodule；
The duty cycle adjustment submodule is connect with the control module, receives the duty cycle adjustment specifically for working as
When control module, by adjusting the duty ratio of the data latch control signal, to control the precharge time for shortening respective frame.
The present invention also provides a kind of precharge time adjusting method, applied to above-mentioned precharge time regulating device,
The precharge time adjusting method includes:
Judgment step: when polarity upset signal judging unit determines the current potential continuous N frame of practical polarity upset signal all
For negative level or when the continuous N frame of current potential for determining the practical polarity upset signal is all positive level, the polarity upset
Signal judging unit generates precharge control signal；
Precharge rate-determining steps: when data, which latch control unit, receives the precharge control signal, the data
The waveform that control unit changes data latch control signal by control is latched, to control the precharge time for shortening respective frame；
M and N is the positive integer greater than 1.
When implementation, the judgment step is specifically included:
Standard polarity energizing signal is stored in advance in standard polarity energizing signal memory module；
Practical polarity upset signal detection module detects actual polarity upset signal；And
When polarity upset signal comparison module relatively obtains the actual polarity upset signal and the standard polarity is turned over
Rotaring signal does not generate the precharge control signal simultaneously.
When implementation, the precharge rate-determining steps include:
When control module receives the precharge control signal, the control module exports corresponding modulation control letter
Number；
When modulation module receives the modulation control signal, the modulation module control modulates the data and latches control
Signal processed, to control the precharge time for shortening respective frame.
The present invention also provides a kind of display driver circuits, including above-mentioned precharge time regulating device.
The present invention also provides a kind of display equipment, including above-mentioned display driver circuit.
Compared with prior art, precharge time regulating device, method, display driver circuit and display of the present invention
Device includes that polarity upset signal judging unit and data latch control unit, and the polarity upset signal judging unit is judging
Current potential continuous N frame to practical polarity upset signal is all negative level or the current potential that ought determine the practical polarity upset signal
When continuous N frame is all positive level, precharge control signal is generated, data latch control unit and receiving the preliminary filling electric control
When signal, change the waveform of data latch control signal by control, to control the precharge time for shortening respective frame, to reduce
The brightness of the frame picture improves flashing bad phenomenon.
Detailed description of the invention
Fig. 1 is the structural block diagram of precharge time regulating device described in the embodiment of the present invention；
Fig. 2 is GOE (Gate Output Enable, grid output are enabled) time t1 and nth frame charging time section t2
Schematic diagram；
Fig. 3 is the structural block diagram of precharge time regulating device described in another embodiment of the present invention；
Fig. 4 is the structural block diagram of precharge time regulating device described in further embodiment of this invention；
Fig. 5 is the flow chart of precharge time adjusting method described in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, precharge time regulating device described in the embodiment of the present invention, is applied to liquid crystal display, packet
It includes:
Polarity upset signal judging unit 21, for being all when the current potential continuous N frame for determining practical polarity upset signal
Negative level or when the continuous N frame of current potential for determining the practical polarity upset signal is all positive level generates preliminary filling electric control
Signal SC；And
Data latch control unit 22, connect with the polarity upset signal judging unit 21, for described when receiving
When precharge control signal SC, change the waveform of data latch control signal by control, to control the preliminary filling for shortening respective frame
The electric time；
M and N is the positive integer greater than 1.
Precharge time regulating device described in the embodiment of the present invention includes polarity upset signal judging unit 21 and data
Control unit 22 is latched, the polarity upset signal judging unit 21 is in the current potential continuous N for determining practical polarity upset signal
Frame is all negative level or when the continuous N frame of current potential for determining the practical polarity upset signal is all positive level, generates preliminary filling
Electric control signal SC, data latch control unit 22 when receiving the precharge control signal SC, change number by control
According to the waveform of latch control signal, to control the precharge time for shortening respective frame, to reduce the brightness of the frame picture, improves and dodge
Bright bad phenomenon.
In the specific implementation, when liquid crystal display panel is when showing a frame picture, by gate driving IC (Integrated
Circuit, integrated circuit) it charges to data line, but each frame data will not be charged to saturation, polarity upset (POL) letter completely
It number can be with the data voltage polarity on determination data line, when data latch control (TP) signal and can determine the charging of a frame picture
Between.Specifically, being N+1 marked as OUTPUTN+1 as shown in Fig. 2, be N gate drive signal marked as OUTPUTN
Gate drive signal is data latch control signal marked as TP.In Fig. 2, the failing edge of OUTPUTN and the rising edge of TP
Between period be GOE (Gate Output Enable, grid output enabled) time t1, the failing edge and OUTPUTN+ of TP
Period between 1 failing edge is that nth frame charging time section t2 has in the charging time of a frame picture with TP as shown in Figure 2
It closes.The embodiment of the present invention automatically adjusts TP signal according to the pulse width by the pulse width of detection POL signal, thus
Change the data line charging time by changing the GOE time.
In practical operation, when display panel works normally, POL signal should be directed to adjacent two frames picture polarity phase
It is anti-, but if encountering special circumstances, the identical situation of the polarity of the corresponding POL signal of adjacent two frame will be generated, at this time
It will lead to flashing bad phenomenon, then need the charging time for adjusting a later frame according to the pulse width of POL signal, it is latter to improve
The excessively bright problem of frame picture.
As shown in figure 3, specifically, the polarity upset signal judging unit 21 may include:
Standard polarity energizing signal memory module 211, for standard polarity energizing signal POLS to be stored in advance；
Practical polarity upset signal detection module 212, for detecting actual polarity upset signal POLA；And
Polarity upset signal comparison module 213, respectively with the standard polarity energizing signal memory module 211 and the reality
Border polarity upset signal detection module 212 connects, for when comparing to obtain the actual polarity upset signal POLS and described
Standard polarity energizing signal POLA does not generate the precharge control signal SC simultaneously.
According to a kind of specific embodiment, polarity upset signal judging unit 21 includes that standard polarity energizing signal stores mould
Block 211, practical polarity upset signal detection module 212 and polarity upset signal comparison module 213, can be believed by polarity upset
Number comparison module 213 comes the practical POL signal of comparison and standard POL signal, to judge whether POL signal is normal.
Specifically, as shown in figure 4, data latch control unit 22 may include:
Control module 221 is connect with the polarity upset signal comparison module 213, receives the precharge for working as
Corresponding modulation control signal Sfm is exported when controlling signal SC；And
Modulation module 222 is connect with the control module 221, receives the modulation control signal Sfm time control for working as
System modulates the data latch control signal, to control the precharge time for shortening respective frame.
Specifically, the polarity upset signal comparison module 213 can use comparator, the standard polarity energizing signal
Memory module 211 and the practical polarity upset signal detection module 212 can use buffer.
In practical operation, the modulation module 222 can be by changing the frequency of data latch control signal and/or changing
Become the duty ratio of data latch control signal to control the precharge time for shortening respective frame.
According to a kind of specific embodiment, the modulation control signal may include fm control signal；The modulation mould
Block may include frequency modulation submodule；
The frequency modulation submodule is connect with the control module, receives the fm control signal time control specifically for working as
System reduces the frequency of the data latch control signal, to control the precharge time for shortening respective frame.
The frequency modulation submodule can use frequency modulator, shorten the pre- of respective frame by reducing the frequency of TP signal to control
Charging time.
According to another specific embodiment, the modulation control signal may include duty cycle adjustment control signal；
The modulation module may include duty cycle adjustment submodule；
The duty cycle adjustment submodule is connect with the control module, receives the duty cycle adjustment specifically for working as
When control module, by adjusting the duty ratio of the data latch control signal, to control the precharge time for shortening respective frame.
According to another specific embodiment, POL polarity can also be increased inside TCON (sequence controller) and monitor mould
Block, i.e., the described polarity upset signal judging unit 21 can be the POL polarity monitoring modular being set in TCON, when POL polarity
When the POL signal polarity of monitoring module monitors to continuous at least two frames is identical, by corresponding information feedback to TCON MCU
(Microcontroller Unit, micro-control unit), MCU changes the TP signal of a later frame according to feedback information, to reduce
The a later frame charging time improves flashing bad phenomenon.
Precharge time adjusting method described in the embodiment of the present invention, applied to above-mentioned precharge time regulating device,
As shown in figure 5, the precharge time adjusting method includes:
Judgment step S1: when polarity upset signal judging unit determines the current potential continuous N frame of practical polarity upset signal
It is all negative level or when the continuous N frame of current potential for determining the practical polarity upset signal is all positive level, the polarity is turned over
Rotaring signal judging unit generates precharge control signal；
Precharge rate-determining steps S2: when data, which latch control unit, receives the precharge control signal, the number
Pass through the waveform that control changes data latch control signal according to control unit is latched, when controlling the precharge for shortening respective frame
Between；
M and N is the positive integer greater than 1.
Specifically, the judgment step may include:
Standard polarity energizing signal is stored in advance in standard polarity energizing signal memory module；
Practical polarity upset signal detection module detects actual polarity upset signal；And
When polarity upset signal comparison module relatively obtains the actual polarity upset signal and the standard polarity is turned over
Rotaring signal does not generate the precharge control signal simultaneously.
Specifically, the precharge rate-determining steps may include:
When control module receives the precharge control signal, the control module exports corresponding modulation control letter
Number；
When modulation module receives the modulation control signal, the FM module control modulates the data and latches control
Signal processed, to control the precharge time for shortening respective frame.
Display driver circuit described in the embodiment of the present invention includes above-mentioned precharge time regulating device.
Liquid crystal display described in the embodiment of the present invention includes above-mentioned display driver circuit.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of precharge time regulating device is applied to liquid crystal display characterized by comprising
Polarity upset signal judging unit, for being all negative level when determining the current potential continuous N frame of practical polarity upset signal
Or when the continuous N frame of current potential for determining the practical polarity upset signal is all positive level, precharge control signal is generated；With
And
Data latch control unit, connect with the polarity upset signal judging unit, for automatically controlled when receiving the preliminary filling
When signal processed, change the waveform of data latch control signal by control, to control the precharge time for shortening respective frame；
M and N is the positive integer greater than 1.
2. precharge time regulating device as described in claim 1, which is characterized in that the polarity upset signal judging unit
Include:
Standard polarity energizing signal memory module, for standard polarity energizing signal to be stored in advance；
Practical polarity upset signal detection module, for detecting actual polarity upset signal；And
Polarity upset signal comparison module, for when comparing to obtain the actual polarity upset signal and the standard polarity is turned over
Rotaring signal does not generate the precharge control signal simultaneously.
3. precharge time regulating device as claimed in claim 2, which is characterized in that the data latch control unit packet
It includes:
Control module is connect with the polarity upset signal comparison module, for when the precharge control signal is received
Export corresponding modulation control signal；And
Modulation module is connect with the control module, for the control modulation number when receiving the modulation control signal
According to latch control signal, to control the precharge time for shortening respective frame.
4. precharge time regulating device as claimed in claim 3, which is characterized in that the modulation control signal includes frequency modulation
Control signal；The modulation module includes frequency modulation submodule；
The frequency modulation submodule is connect with the control module, is subtracted specifically for controlling when receiving the fm control signal
The frequency of the small data latch control signal, to control the precharge time for shortening respective frame.
5. precharge time regulating device as claimed in claim 3, which is characterized in that the modulation control signal includes duty
Signal is controlled than adjusting；
The modulation module includes duty cycle adjustment submodule；
The duty cycle adjustment submodule is connect with the control module, receives the duty cycle adjustment control specifically for working as
When module, by adjusting the duty ratio of the data latch control signal, to control the precharge time for shortening respective frame.
6. a kind of precharge time adjusting method, when applied to precharge as described in any claim in claim 1 to 5
Between regulating device, which is characterized in that the precharge time adjusting method includes:
Judgment step: when the current potential continuous N frame that polarity upset signal judging unit determines practical polarity upset signal is all negative
Level or when the continuous N frame of current potential for determining the practical polarity upset signal is all positive level, the polarity upset signal
Judging unit generates precharge control signal；
Precharge rate-determining steps: when data, which latch control unit, receives the precharge control signal, the data are latched
Control unit changes the waveform of data latch control signal by control, to control the precharge time for shortening respective frame；
M and N is the positive integer greater than 1.
7. precharge time adjusting method as claimed in claim 6, which is characterized in that the judgment step specifically includes:
Standard polarity energizing signal is stored in advance in standard polarity energizing signal memory module；
Practical polarity upset signal detection module detects actual polarity upset signal；And
When polarity upset signal comparison module relatively obtains the actual polarity upset signal and standard polarity overturning letter
Number the precharge control signal is not generated simultaneously.
8. precharge time adjusting method as claimed in claim 7, which is characterized in that the precharge rate-determining steps include:
When control module receives the precharge control signal, the control module exports corresponding modulation control signal；
When modulation module receives the modulation control signal, the modulation module control modulates the data and latches control letter
Number, to control the precharge time for shortening respective frame.
9. a kind of display driver circuit, which is characterized in that including the preliminary filling as described in any claim in claim 1 to 5
Electric time adjustment device.
10. a kind of display equipment, which is characterized in that including display driver circuit as claimed in claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710095664.4A CN106782411B (en) | 2017-02-22 | 2017-02-22 | Precharge time regulating device, method, display driver circuit and display device |
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| CN201710095664.4A CN106782411B (en) | 2017-02-22 | 2017-02-22 | Precharge time regulating device, method, display driver circuit and display device |
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| CN106782411B true CN106782411B (en) | 2019-02-12 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507640B (en) * | 2017-09-05 | 2024-10-29 | 珠海泓芯科技有限公司 | Memory reading circuit |
| TWI637370B (en) * | 2017-12-19 | 2018-10-01 | 奇景光電股份有限公司 | Display device and operation method thereof |
| CN108269547B (en) * | 2018-02-08 | 2020-07-14 | 京东方科技集团股份有限公司 | Pixel compensation method and compensation module, computer storage medium and display device |
| JP6741046B2 (en) * | 2018-07-23 | 2020-08-19 | セイコーエプソン株式会社 | Liquid crystal device and electronic equipment |
| CN109817175B (en) * | 2019-01-31 | 2021-12-07 | 京东方科技集团股份有限公司 | Display panel driving method and device, display panel and display device |
| CN111564134B (en) * | 2020-06-12 | 2023-06-20 | 京东方科技集团股份有限公司 | Data voltage polarity control method, module and display device |
| CN114399977B (en) * | 2022-02-25 | 2023-04-25 | 滁州惠科光电科技有限公司 | Backlight control method, circuit and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1573459A (en) * | 2003-06-23 | 2005-02-02 | 三星电子株式会社 | Display driving device and method and liquid crystal display apparatus having the same |
| CN1637544A (en) * | 2003-12-04 | 2005-07-13 | 夏普株式会社 | Liquid crystal display and driving method thereof |
| CN101226724A (en) * | 2007-01-15 | 2008-07-23 | Lg.菲利浦Lcd株式会社 | Liquid crystal display and driving method thereof |
| CN101751896A (en) * | 2010-03-05 | 2010-06-23 | 华映光电股份有限公司 | Liquid crystal display device and driving method thereof |
| KR101243804B1 (en) * | 2006-06-30 | 2013-03-18 | 엘지디스플레이 주식회사 | Apparatus and method for driving of liquid crystal display device |
| CN104810001A (en) * | 2015-05-14 | 2015-07-29 | 深圳市华星光电技术有限公司 | Drive circuit and a drive method of liquid crystal display panel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5348884B2 (en) * | 2007-01-15 | 2013-11-20 | エルジー ディスプレイ カンパニー リミテッド | Liquid crystal display |
-
2017
- 2017-02-22 CN CN201710095664.4A patent/CN106782411B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1573459A (en) * | 2003-06-23 | 2005-02-02 | 三星电子株式会社 | Display driving device and method and liquid crystal display apparatus having the same |
| CN1637544A (en) * | 2003-12-04 | 2005-07-13 | 夏普株式会社 | Liquid crystal display and driving method thereof |
| KR101243804B1 (en) * | 2006-06-30 | 2013-03-18 | 엘지디스플레이 주식회사 | Apparatus and method for driving of liquid crystal display device |
| CN101226724A (en) * | 2007-01-15 | 2008-07-23 | Lg.菲利浦Lcd株式会社 | Liquid crystal display and driving method thereof |
| CN101751896A (en) * | 2010-03-05 | 2010-06-23 | 华映光电股份有限公司 | Liquid crystal display device and driving method thereof |
| CN104810001A (en) * | 2015-05-14 | 2015-07-29 | 深圳市华星光电技术有限公司 | Drive circuit and a drive method of liquid crystal display panel |
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