CN106128393B - Liquid crystal display and its display control unit - Google Patents
Liquid crystal display and its display control unit Download PDFInfo
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- CN106128393B CN106128393B CN201610776936.2A CN201610776936A CN106128393B CN 106128393 B CN106128393 B CN 106128393B CN 201610776936 A CN201610776936 A CN 201610776936A CN 106128393 B CN106128393 B CN 106128393B
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- output terminal
- clock
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- display control
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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
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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)
Abstract
The present invention provides a kind of liquid crystal display and its display control unit, and display control unit includes a timer controller and a level displacement shifter, and timer controller includes the first output end of N number of connection level displacement shifter, and timer controller further includes 2NA second output terminal, each second output terminal and an output terminal of clock connect one and door jointly, and each second output terminal also passes through that connection one is non-to connect another and door jointly with output terminal of clock behind the door, and level displacement shifter includes 2NA output terminal of clock, timer controller are used to send N number of different first kind square-wave signal via N number of first output end to level displacement shifter, and level displacement shifter is for converting N number of different first kind square-wave signal as 2NA different first kind clock signal and through 2NA output terminal of clock output, 2NA second output terminal output 2NA different Second Type square-wave signal, 2N+1It is a to export 2 with doorN+1A different Second Type clock signal.
Description
Technical field
The present invention relates to field of display more particularly to a kind of liquid crystal displays and its display control unit.
Background technique
In liquid crystal display, gate driving array substrate (GOA) has become the main frame of liquid crystal display panel (Open Cell)
Structure, different liquid crystal display panels need the clock signal of different number.Such as the liquid crystal display panel of model 32FHD needs 4 clocks
Signal, the liquid crystal display panel of model 55UD needs 8 clock signals, and clock signal needs timer controller (TCON) to send
Control signal is converted through level displacement shifter (level shifter), and the output end of level displacement shifter is limited, for difference
That liquid crystal display panel of type, this needs different level displacement shifters, the space for the promotion in need that is bound in this way.
Summary of the invention
In order to overcome the deficiencies of the prior art, the present invention provides a kind of liquid crystal display of compatibility for improving level displacement shifter
And its display drive apparatus.
The present invention provides a kind of display control unit of liquid crystal display, and the display control unit includes a timer control
Device processed and a level displacement shifter, the timer controller includes the first output end of N number of connection level displacement shifter, described
Timer controller further includes 2NA second output terminal, each second output terminal connect one and door with an output terminal of clock jointly,
Each second output terminal also passes through connection one and non-connect another and door, the level shift jointly with the output terminal of clock behind the door
Device includes 2NA output terminal of clock, the timer controller are used to send N number of different the via N number of first output end
One type square-wave signal gives the level displacement shifter, and the level displacement shifter is for converting N number of different first kind side
Wave signal is 2NA different first kind clock signal and through described 2NA output terminal of clock output, described 2NA second output
End output 2NA different Second Type square-wave signal, described 2N+1It is a to export 2 with doorN+1A different Second Type clock letter
Number.
Further, the period of the first kind square-wave signal is less than the Second Type square-wave signal.
Further, the period of the first kind square-wave signal is less than the Second Type square-wave signal.
Further, the period of first clock signal is less than the period of the second clock signal.
Further, the high level of first clock signal is 3.3V, low level 0V.
Further, the N is 2.
The present invention also provides a kind of liquid crystal display, the liquid crystal display includes above-mentioned display control unit.
In the present invention, the timer controller connect with door and NOT gate with the level displacement shifter by multiple thus
It can produce more clock signals, so that level displacement shifter be made to meet further types of liquid crystal display panel, improve level displacement shifter
Compatibility.
Detailed description of the invention
Fig. 1 is the system block diagram of the display control unit better embodiment of liquid crystal display of the present invention.
Fig. 2 is the signal timing diagram of the display control unit better embodiment of liquid crystal display of the present invention.
Specific embodiment
Now, it is described more fully present inventive concept hereinafter with reference to attached drawing, the invention is shown in the accompanying drawings
The exemplary embodiment of design.According to the exemplary embodiment below described in more detail with reference to the accompanying drawings, present inventive concept
The advantages of and feature and make they realize method will be apparent.It is to be noted, however, that present inventive concept is not limited to
Following illustrative embodiment, and can be implemented in a variety of manners.Therefore it provides exemplary embodiment is only for open
Present inventive concept and allow skilled in the art realises that present inventive concept scope.In the accompanying drawings, the embodiment of present inventive concept
It is not limited to specific example provided herein.
Unless otherwise defined, otherwise all terms used in the embodiment disclosed by the invention (including technical term and
Scientific term) there is meaning identical with the those of ordinary skill of technical field belonging to the present invention normally understood meaning of institute,
And it is not necessarily limited to known specific definitions when describing the present invention.Therefore, these terms may include the moment it
The equivalent terms created afterwards.It will be further understood that such as these terms defined in usually used dictionary should be explained
For with meaning identical with their meaning in this specification and under the background of the prior art, and unless here it is clear this
Otherwise sample definition will not be explained with Utopian or too formal meaning.
Fig. 1 and Fig. 2 is please referred to, the display control unit better embodiment of liquid crystal display of the present invention includes a timer
Controller (TCON) 10 and a level displacement shifter (Level shifter) 30.
The timer controller 10 includes the first output end of N number of connection level displacement shifter 30, the timer
Controller further includes 2NA second output terminal, each second output terminal and an output terminal of clock connect one and door jointly, and every 1
Two output ends also pass through that connection one is non-to connect another and door jointly with the output terminal of clock behind the door, and the level displacement shifter 30 wraps
Include 2NA output terminal of clock, the timer controller are used to send N number of different first kind via N number of first output end
Type square-wave signal gives the level displacement shifter 30, and the level displacement shifter 30 is for converting N number of different first kind side
Wave signal is 2NA different first kind clock signal and through described 2NA output terminal of clock output, described 2NA second output
End output 2NA different Second Type square-wave signal, described 2N+1It is a to export 2 with doorN+1A different Second Type clock letter
Number.The high level of first clock signal is 3.3V, low level 0V.
In the present embodiment, 2 N, first output end export two first kind square-wave signal CKI1, CKI2, institute
State level displacement shifter export 4 first kind clock signals CK1, CK2, CK3, CK4,4 second of the timer controller
Output end exports 4 Second Type square-wave signals T1, T2, T3, T4, and described 8 export 8 different Second Type clocks from door
Signal CLK1, CLK2, CLK3, CLK4, CLK5, CLK6, CLK7, CLK8.
Please continue to refer to Fig. 2, the period of the first kind square-wave signal is less than the period of first clock signal, institute
The period for stating first kind square-wave signal is less than the Second Type square-wave signal, and the period of first clock signal is less than institute
State the period of second clock signal.
Although the present invention has shown and described referring to specific embodiment, it should be appreciated by those skilled in the art that:
In the case where not departing from the spirit and scope of the present invention being defined by the claims and their equivalents, can carry out herein form and
Various change in details.
Claims (7)
1. a kind of display control unit of liquid crystal display, it is characterised in that: the display control unit includes a timer control
Device processed and a level displacement shifter, the timer controller includes the first output end of N number of connection level displacement shifter, described
Timer controller further includes 2NA second output terminal, each second output terminal connect one with a corresponding output terminal of clock jointly
With door, each second output terminal also pass through connection one it is non-connect another and door jointly with the corresponding output terminal of clock behind the door,
The level displacement shifter includes 2NA output terminal of clock, the timer controller are used to send out via N number of first output end
Send N number of different first kind square-wave signal to the level displacement shifter, the level displacement shifter is for converting N number of difference
First kind square-wave signal be 2NA different first kind clock signal and through described 2NA output terminal of clock output, it is described
2NA second output terminal output 2NA different Second Type square-wave signal, described 2N+1It is a to export 2 with doorN+1A different second
Type clock signal.
2. display control unit according to claim 1, which is characterized in that the period of the first kind square-wave signal is small
In the period of the first kind clock signal.
3. display control unit according to claim 1, which is characterized in that the period of the first kind square-wave signal is small
In the Second Type square-wave signal.
4. display control unit according to claim 1, which is characterized in that the period of the first kind clock signal is small
In the period of the Second Type clock signal.
5. display control unit according to claim 1, which is characterized in that the high level of the first kind clock signal
For 3.3V, low level 0V.
6. display control unit according to claim 1, which is characterized in that the N is 2.
7. a kind of liquid crystal display, which is characterized in that the liquid crystal display includes the display control of any one of claim 1 to 6
Device processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776936.2A CN106128393B (en) | 2016-08-30 | 2016-08-30 | Liquid crystal display and its display control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776936.2A CN106128393B (en) | 2016-08-30 | 2016-08-30 | Liquid crystal display and its display control unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106128393A CN106128393A (en) | 2016-11-16 |
| CN106128393B true CN106128393B (en) | 2019-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610776936.2A Active CN106128393B (en) | 2016-08-30 | 2016-08-30 | Liquid crystal display and its display control unit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782357B (en) * | 2016-11-24 | 2019-09-20 | 深圳市华星光电技术有限公司 | Gate driving circuit, GOA circuit and display driving method |
| CN110277984B (en) * | 2019-05-31 | 2021-08-03 | Tcl华星光电技术有限公司 | Level shift circuit and clock signal circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06326950A (en) * | 1993-05-13 | 1994-11-25 | Nec Corp | Liquid crystal driving device |
| KR20080032717A (en) * | 2006-10-10 | 2008-04-16 | 삼성전자주식회사 | Gate driving unit and display apparatus having the same |
| TW200837711A (en) * | 2007-03-14 | 2008-09-16 | Princeton Technology Corp | Display control circuit |
| CN104849889A (en) * | 2015-05-12 | 2015-08-19 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display device |
-
2016
- 2016-08-30 CN CN201610776936.2A patent/CN106128393B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06326950A (en) * | 1993-05-13 | 1994-11-25 | Nec Corp | Liquid crystal driving device |
| KR20080032717A (en) * | 2006-10-10 | 2008-04-16 | 삼성전자주식회사 | Gate driving unit and display apparatus having the same |
| TW200837711A (en) * | 2007-03-14 | 2008-09-16 | Princeton Technology Corp | Display control circuit |
| CN104849889A (en) * | 2015-05-12 | 2015-08-19 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display device |
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| Publication number | Publication date |
|---|---|
| CN106128393A (en) | 2016-11-16 |
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