CN104751800B - A kind of dot structure - Google Patents
A kind of dot structure Download PDFInfo
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- CN104751800B CN104751800B CN201510185549.7A CN201510185549A CN104751800B CN 104751800 B CN104751800 B CN 104751800B CN 201510185549 A CN201510185549 A CN 201510185549A CN 104751800 B CN104751800 B CN 104751800B
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- primary colors
- led particle
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- pipes
- particle
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Abstract
The embodiment of the invention discloses a kind of dot structure, the display brightness to improve LED particle improves display efficiency.The dot structure that the present invention is provided includes：First COM pipes, the 2nd COM pipes, electric capacity, resistor assembly and LED particle；Wherein, the drain electrode of the first COM pipes is connected with the grid of the 2nd COM pipes and described electric capacity one end, and the source electrode of the first COM pipes is connected with source electrode driver, and the grid of the first COM pipes is connected with gate drivers；The drain electrode of the 2nd COM pipes is connected with the negative pole of the LED particle, and the other end of the source electrode and the electric capacity of the 2nd COM pipes is grounded respectively；Described resistor assembly one end is connected with the positive pole of the LED particle, the resistor assembly other end as the dot structure output end.
Description
Technical field
The present invention relates to light emitting diode (Light-Emitting Diode, abbreviation LED) technical field, and in particular to one
Plant dot structure.
Background technology
Under small spacing technological evolvement, LED display can be made very accurate, wherein, LED display includes
There is the spacing between substantial amounts of LED, LED to be even less than 1mm, and the pin per LEDs is required for being connected with driving chip
Connect, current driving chip can only at most provide tens channels, the LED of the same color for driving respective numbers.With
Small spacing technology to develop, the LED that can be mounted in each LED lamp panel is more and more, and accordingly, driving chip is also more next
It is more, under the PCB substrate effective area based on LED lamp panel, it is unfavorable for the integrated of circuit.
Source electrode driver (Source is used in thin film transistor (TFT) (TFT, thin film transistor) display screen
Driver) and gate drivers (Gate Driver), every kind of driver can provide up to a hundred or thousands of channels, be shown in TFT
As long as driving can be completed in screen with a few driver, driver cost is reduced.As shown in figure 1, the pixel of TFT circuit
Structure includes a TFT thin film transistor (TFT) and two electric capacity, and money is walked between the source electrode and source electrode driver of TFT thin film transistor (TFT)s
Stockline, walks gate line between the grid and gate drivers of TFT thin film transistor (TFT)s, gate drivers are TFT thin film transistor (TFT)s
Switch provides signal, and source electrode driver is used for data transmission.But, source electrode driver and gate drivers are shown based on TFT
Screen exploitation, LED display can not be used directly, and the driver of TFT display screens is if desired used in LED display framework,
Then need to be improved LED display frameworks.
The content of the invention
The embodiments of the invention provide a kind of dot structure, the display brightness to improve LED particle improves display effect
Rate.
The invention provides a kind of dot structure, it can include：
First COM pipes, the 2nd COM pipes, electric capacity, resistor assembly and LED particle；
Wherein, the drain electrode of the first COM pipes is connected with the grid of the 2nd COM pipes and described electric capacity one end, described
The source electrode of first COM pipes is connected with source electrode driver, and the grid of the first COM pipes is connected with gate drivers；Described second
The drain electrode of COM pipes is connected with the negative pole of the LED particle, and the source electrode of the 2nd COM pipes is distinguished with the other end of the electric capacity
Ground connection；
Described resistor assembly one end is connected with the positive pole of the LED particle, and the resistor assembly other end is used as the picture
The output end of plain structure.
As can be seen from the above technical solutions, the source electrode of the first COM pipes drives with source electrode in the dot structure that the present invention is provided
Dynamic device connection, drive signal is provided for the data transfer of dot structure, in addition, the grid of the first COM pipes connects with gate drivers
Connect, provided for the first COM pipes and open or close signal, therefore, provided in gate drivers by the grids of the first COM pipes and open the
One COM pipe signals, electric capacity is that the first COM pipes and the 2nd COM pipes provide voltage, secondly as resistor assembly and LED particle string
Connection, so as to provide a variable voltage for LED particle, is converted into voltage-controlled type pulse wave modulation so that LED by drive signal
Particle brightness is in gray scale variation, improves display effect.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Dot structure schematic diagram in the TFT frameworks that Fig. 1 provides for prior art；
Fig. 2 is the structural representation of dot structure provided in an embodiment of the present invention；
The structural representation for the dot structure that Fig. 3 provides for another embodiment of the present invention；
The structural representation for the dot structure that Fig. 4 provides for another embodiment of the present invention；
Fig. 5 is the volt-ampere IV performance diagrams of LED particle provided in an embodiment of the present invention；
The volt-ampere IV performance diagrams for the LED particle that Fig. 6 provides for another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing of the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
The embodiments of the invention provide a kind of dot structure, the display brightness to improve LED particle improves display effect
Rate.
Referring to Fig. 2, Fig. 2 is the structural representation of dot structure provided in an embodiment of the present invention；As Fig. 2 (in fig. 2 with
Exemplified by one resistor assembly and a LED particle) shown in, a kind of dot structure, it may include：
First COM pipes 201, the 2nd COM pipes 202, electric capacity 203, resistor assembly 204 and LED particle 205；
Wherein, the drain D of above-mentioned first COM pipes 201 and the grid G of above-mentioned 2nd COM pipes 202 and above-mentioned electric capacity 203 1
End connection, the source S of above-mentioned first COM pipes 201 is connected with source electrode driver, the grid G and grid of above-mentioned first COM pipes 201
Driver is connected；The drain D of above-mentioned 2nd COM pipes 202 is connected with the negative pole of above-mentioned LED particle 205, above-mentioned 2nd COM pipes 202
Source S and the other end of above-mentioned electric capacity 203 be grounded respectively；
Above-mentioned one end of resistor assembly 204 is connected with the positive pole of above-mentioned LED particle 205, and the above-mentioned other end of resistor assembly 204 is made
For the output end of the dot structure.
It is appreciated that in the drive circuit that FTF is provided, although a source electrode driver or gate drivers can be provided
Channel up to a hundred or thousands of, but the channel of a data-signal of source electrode driver offer is provided in each dot structure,
And the channel of a control signal of gate drivers offer, therefore, wiring will be covered with one piece of LED lamp panel, if
Data-signal be routed through over long distances transmit, or gate drivers provided when being short of power, it will cause LED particle
The VDD/Vgate voltages of upper output end output are uneven, visually form LED display and the uneven situation of gradient is presented.
In dot structure shown in Fig. 2, the source electrode of the first COM pipes is connected with source electrode driver, is provided for the data transfer of dot structure
Drive signal, in addition, the grid of the first COM pipes is connected with gate drivers, provides for the first COM pipes and opens or closes signal, therefore,
Provided in gate drivers by the grid of the first COM pipes and open the first COM pipe signals, electric capacity is the first COM pipes and second
COM pipes provide voltage, secondly as resistor assembly is connected with LED particle, so that a variable voltage is provided for LED particle,
Drive signal is converted into voltage-controlled type pulse wave modulation so that LED particle brightness is in gray scale variation, improves display effect.
Wherein, in the dot structure shown in Fig. 2, a LEDs particle and a resistor assembly are only included, wherein, the LED
Particle can be that LED particle is any one in R primary colors LED particle, G primary colors LED particle and B primary colors LED particles.
Referring to Fig. 3, the structural representation for the dot structure that Fig. 3 provides for another embodiment of the present invention.With Fig. 2 difference
Point is that in figure 3, above-mentioned dot structure includes three LEDs particles and a resistor assembly 204, three LEDs particle difference
For R primary colors LED particle 301, G primary colors LED particle 302 and B primary colors LED particle 303；
Wherein, positive pole, the above-mentioned G primary colors LED of above-mentioned one end of resistor assembly 204 respectively with above-mentioned R primary colors LED particle 301
The positive pole of particle 302 and the connection of the positive pole of above-mentioned B primary colors LED particle 303, the above-mentioned other end of resistor assembly 204 are used as above-mentioned picture
The output end of plain structure；
The negative pole of the negative pole of above-mentioned R primary colors LED particle, the negative pole of above-mentioned G primary colors LED particle and above-mentioned B primary colors LED particle
Drain electrode with above-mentioned two COM pipes is connected.
Referring to Fig. 4, the structural representation for the dot structure that Fig. 4 provides for another embodiment of the present invention.With Fig. 2 difference
Point is that stating dot structure in fig. 4, the upper includes three LEDs particles and three resistor assemblies, above-mentioned three LEDs particle difference
For R primary colors LED particle 401, G primary colors LED particle 402 and B primary colors LED particle 403, above three resistor assembly is respectively first
Resistor assembly 404, second resistance component 405 and 3rd resistor component 406；
Wherein, one end of above-mentioned first resistor component 404 is connected with the positive pole of above-mentioned R primary colors LED particle 401, and above-mentioned
One end of two resistor assemblies 405 is connected with the positive pole of above-mentioned G primary colors LED particle 402, one end of above-mentioned 3rd resistor component 406
It is connected with the positive pole of above-mentioned B primary colors LED particle 403, the other end of above-mentioned first resistor component 404, second resistance component 405
The output end of above-mentioned dot structure is used as after the other end connection of the other end and the 3rd resistor component 406；
The negative pole of above-mentioned R primary colors LED particle 401, the negative pole of above-mentioned G primary colors LED particle 402 and above-mentioned B primary colors LED particle
Drain electrode of 403 negative pole with above-mentioned 2nd COM pipes is connected.
Alternatively, the resistance phase of above-mentioned first resistor component 404, second resistance component 405 and 3rd resistor component 406
Deng.
The dot structure provided based on accompanying drawing 2,3 and 4, referring to Fig. 5, Fig. 5 is LED provided in an embodiment of the present invention
The volt-ampere IV performance diagrams of grain.From fig. 5, it can be seen that IV characteristics of the forward voltage VDD/Vgate from 3-12V, LED particle is bright
Degree is in gray scale variation, now, and forward current If excursion is from 0-1000uA, it can be seen that in embodiments of the present invention, just
Excursion to voltage VDD/Vgate is larger, is easier control, it is ensured that the display brightness of display unit, improves display effect
Rate.
In another embodiment, referring to Fig. 6, the volt-ampere IV for the LED particle that Fig. 6 provides for another embodiment of the present invention
Performance diagram.From fig. 6, it can be seen that IV characteristics of the forward voltage VDD/Vgate from 7-102V, LED particle brightness is in GTG
Change, now, forward current If excursion is from 0-1000uA, moreover, from fig. 6 it can be seen that forward voltage VDD/
Vgate excursion is larger, is easier control, it is ensured that the display brightness of display unit, improves display efficiency.
A kind of dot structure provided by the present invention is described in detail above, for the general technology people of this area
Member, according to the thought of the embodiment of the present invention, will change in specific embodiments and applications, in summary,
This specification content should not be construed as limiting the invention.
Claims (3)
1. a kind of dot structure, it is characterised in that including：
First COM pipes, the 2nd COM pipes, electric capacity, resistor assembly and LED particle；
Wherein, the drain electrode of the first COM pipes is connected with the grid of the 2nd COM pipes and described electric capacity one end, and described first
The source electrode of COM pipes is connected with source electrode driver, and the grid of the first COM pipes is connected with gate drivers；The 2nd COM pipes
Drain electrode be connected with the negative pole of the LED particle, the other end of the source electrode and the electric capacity of the 2nd COM pipes is grounded respectively,
Resistor assembly is connected with LED particle, provides a variable voltage for LED particle, drive signal is converted into voltage-controlled type
Pulse wave modulation so that LED particle brightness is in gray scale variation；
Described resistor assembly one end is connected with the positive pole of the LED particle, and the resistor assembly other end is used as the pixel knot
The output end of structure；
The dot structure includes three LEDs particles and a resistor assembly, and the three LEDs particle is respectively R primary colors LED
Grain, G primary colors LED particle and B primary colors LED particles；
Wherein, positive pole, the positive pole of the G primary colors LED particle of described resistor assembly one end respectively with the R primary colors LED particle
Connected with the positive pole of the B primary colors LED particle, the resistor assembly other end as the dot structure output end；
The negative pole of the negative pole of the R primary colors LED particle, the negative pole of the G primary colors LED particle and the B primary colors LED particle with
The drain electrode connection of the 2nd COM pipes；Or,
The dot structure includes three LEDs particles and three resistor assemblies, and the three LEDs particle is respectively R primary colors LED
Grain, G primary colors LED particle and B primary colors LED particles, three resistor assemblies are respectively first resistor component, second resistance component
With 3rd resistor component；
Wherein, one end of the first resistor component is connected with the positive pole of the R primary colors LED particle, the second resistance component
One end be connected with the positive pole of the G primary colors LED particle, one end of the 3rd resistor component and the B primary colors LED particle
Positive pole is connected, the other end of the first resistor component, the other end of the second resistance component and 3rd resistor component it is another
The output end of the dot structure is used as after the connection of one end；
The negative pole of the negative pole of the R primary colors LED particle, the negative pole of the G primary colors LED particle and the B primary colors LED particle with
The drain electrode connection of the 2nd COM pipes.
2. dot structure according to claim 1, it is characterised in that
The dot structure includes a LEDs particle and a resistor assembly, and the LED particle is R primary colors LED particle, G primary colors
Any one in LED particle and B primary colors LED particles.
3. dot structure according to claim 1, it is characterised in that
The resistance of the first resistor component, second resistance component and 3rd resistor component is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185549.7A CN104751800B (en) | 2015-04-17 | 2015-04-17 | A kind of dot structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185549.7A CN104751800B (en) | 2015-04-17 | 2015-04-17 | A kind of dot structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104751800A CN104751800A (en) | 2015-07-01 |
| CN104751800B true CN104751800B (en) | 2017-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510185549.7A Expired - Fee Related CN104751800B (en) | 2015-04-17 | 2015-04-17 | A kind of dot structure |
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| CN (1) | CN104751800B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341246B (en) * | 2018-12-29 | 2021-05-25 | Tcl科技集团股份有限公司 | Backlight control method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100578841B1 (en) * | 2004-05-21 | 2006-05-11 | 삼성에스디아이 주식회사 | Light emitting display, and display panel and driving method thereof |
| JP2008134577A (en) * | 2006-10-24 | 2008-06-12 | Eastman Kodak Co | Display device and manufacturing method thereof |
| US20090179833A1 (en) * | 2008-01-15 | 2009-07-16 | Semiconductor Energy Laboratory Co., Ltd. | Display device and electronic appliance |
| CN101859543B (en) * | 2010-05-26 | 2012-06-27 | 四川虹视显示技术有限公司 | Method for improving brightness uniformity of AMOLED panel |
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Address after: Kezhu road high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 233 510670 Patentee after: Wei Chong group Limited by Share Ltd Address before: Kezhu road high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 233 510663 Patentee before: Guangdong Weichuangshixun Science and Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171010 Termination date: 20190417 |