CN204348302U - Display panel - Google Patents
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- CN204348302U CN204348302U CN201420868653.7U CN201420868653U CN204348302U CN 204348302 U CN204348302 U CN 204348302U CN 201420868653 U CN201420868653 U CN 201420868653U CN 204348302 U CN204348302 U CN 204348302U
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- display panel
- transistor
- driving circuit
- electrooptic element
- utility
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Abstract
The display panel that the utility model provides, comprise: many drive wires, the a plurality of data lines crossing with described many drive wires, and be arranged at multiple pixels of described many drive wires and described a plurality of data lines intersection region, described pixel comprises driving circuit, electrooptic element and a power supply, wherein, each driving circuit comprises a transistor, the grid of described transistor is connected with a described drive wire, the source electrode of described transistor is connected with a described data line, the drain electrode of described transistor is connected with the anode of described electrooptic element, the negative electrode of described electrooptic element is connected with described power supply.In the utility model, driving circuit structure is simple, while the quantity reducing transistor in driving circuit, does not need to use memory capacitance, thus can improve display panel resolution and aperture opening ratio, and reduce display panel power consumption.
Description
Technical field
The utility model relates to display technique field, particularly relates to a kind of display panel.
Background technology
At present, active-matrix organic light emitting diode (Active Matrix/Organic Light Emitting Diode, AMOLED) panel display technologies is because of its high chroma, high response speed, the feature such as more frivolous, is just replacing LCD technology at present and is becoming the strong rival in display technique field of future generation gradually.
The driving circuit of the active matrix/organic light emitting display simplified most in prior art is 2T1C circuit, as shown in Figure 1, each pixel of active matrix/organic light emitting display includes driving circuit 10 and Organic Light Emitting Diode OLED, described driving circuit 10 is connected with data line Dm and sweep trace Sn, and control the luminescence of described Organic Light Emitting Diode OLED, wherein, described driving circuit 10 comprises switching thin-film transistor T1, drive thin film transistor (TFT) T2 and memory capacitance C, the grid of described driving thin film transistor (TFT) T2 is connected with the drain electrode of described switching thin-film transistor T1, the source electrode of described driving thin film transistor (TFT) T2 is connected with the first power supply ELVDD, the drain electrode of described driving thin film transistor (TFT) T2 is connected with the anode of described Organic Light Emitting Diode OLED, the negative electrode of described Organic Light Emitting Diode OLED is connected with second source ELVSS, between the grid that described memory capacitance C is connected to described driving thin film transistor (TFT) T2 and source electrode.
In described driving circuit 10, by the Kai Heguan of sweep trace Sn gauge tap thin film transistor (TFT) T1, by data line Dm, required data voltage Data is write memory capacitance C after switching thin-film transistor T1 opens, after switching thin-film transistor T1 closes, memory capacitance C still keeps data voltage Data, in the time of a frame, Sustainable Control drives the duty of thin film transistor (TFT) T2, thus control the electric current flowing through described Organic Light Emitting Diode OLED, to realize the bright dark change of described Organic Light Emitting Diode OLED.
Wherein, the Main Function of described memory capacitance C is the data voltage keeping described data line Dm to provide, and in order to the maintenance effect reached, it is larger that the capacitance of described memory capacitance C generally can design.Accordingly, the Area comparison of described memory capacitance C is large, and its area shared within the pixel also can be larger.Because memory capacitance C is lighttight, the area therefore occupied by described memory capacitance C can affect the aperture opening ratio of pixel.Meanwhile, due to the charge/discharge operation of electric capacity, make to adopt the power dissipation ratio of described driving circuit 10 higher.
At present, no matter be the 2T1C type circuit structure shown in Fig. 1 or other " the many C of many T " type circuit structures, all there is driving circuit structure complexity, display panel resolution is low, aperture opening ratio is low, increase the problems such as power consumption.
Utility model content
The purpose of this utility model is, provides a kind of display panel, simplifies driving circuit, while minimizing number of transistors, does not need to use memory capacitance, thus can improve display panel resolution and aperture opening ratio, and reduce display panel power consumption.
For solving the problems of the technologies described above, the utility model provides display panel, comprising: many drive wires, a plurality of data lines crossing with described many drive wires, and the multiple pixels being arranged at described many drive wires and described a plurality of data lines intersection region;
Described pixel comprises driving circuit, electrooptic element and a power supply;
Wherein, described driving circuit comprises a transistor;
The grid of described transistor is connected with a described drive wire, and the source electrode of described transistor is connected with a described data line, and the drain electrode of described transistor is connected with the anode of described electrooptic element, and the negative electrode of described electrooptic element is connected with described power supply.
Optionally, the driving method of described display panel is digital drive.
Optionally, the driving frame frequency of described display panel is more than or equal to 75Hz.
Optionally, described electrooptic element is Organic Light Emitting Diode, or inorganic light-emitting diode.
Optionally, described transistor is PMOS transistor, or nmos pass transistor.
Optionally, described display panel also comprises: the scan line driver be connected with described many drive wires, and the datawire driver be connected with described a plurality of data lines.
Optionally, described power ground.
Optionally, a transistor is only comprised in each described driving circuit.
The display panel that the utility model provides, comprise: many drive wires, the a plurality of data lines crossing with described many drive wires, and be arranged at multiple pixels of described many drive wires and described a plurality of data lines intersection region, described pixel comprises driving circuit, electrooptic element and a power supply, wherein, each driving circuit comprises a transistor, the grid of described transistor is connected with a described drive wire, the source electrode of described transistor is connected with a described data line, the drain electrode of described transistor is connected with the anode of described electrooptic element, the negative electrode of described electrooptic element is connected with described power supply.In the utility model, driving circuit structure is simple, while the quantity reducing transistor in driving circuit, does not need to use memory capacitance, thus improves the PPI of display panel.In addition, owing to not comprising electric capacity in the driving circuit 10 in the utility model, so the aperture opening ratio of pixel can not be affected because of the area of electric capacity, the power consumption of display panel also can not be increased because of the charge/discharge operation of electric capacity.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the driving circuit of the active matrix/organic light emitting display of prior art;
Fig. 2 is the structural representation of the display panel in the utility model one embodiment.
Embodiment
Below in conjunction with schematic diagram, display panel of the present utility model is described in more detail, which show preferred embodiment of the present utility model, should be appreciated that those skilled in the art can revise the utility model described here, and still realize advantageous effects of the present utility model.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as to restriction of the present utility model.
In the following passage, more specifically the utility model is described by way of example with reference to accompanying drawing.According to the following describes and claims, advantage of the present utility model and feature will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, aid illustration the utility model embodiment lucidly.
Core concept of the present utility model is, in a kind of display panel provided, driving circuit only adopts a transistor, adopt the type of drive of digital circuit to drive display panel simultaneously, utilize the reaction time of human eye, adopt the frame frequency being more than or equal to 75Hz to drive, make human eye perceives less than the saltus step of display frame.Therefore, in the utility model, driving circuit is simplified, and while minimizing number of transistors, does not need to use memory capacitance, thus improves display panel resolution and aperture opening ratio, and reduce the power consumption of display panel.
Structural representation below in conjunction with the display panel shown in Fig. 2 is specifically described display panel of the present utility model.Display panel of the present utility model specifically comprises:
Many drive wire G1, G2 arranging along first direction (X-direction), G3 ..., Gm, the a plurality of data lines D1 arranged along the second direction (Y-direction) crossing with first direction, D2 ..., Dn, and arranged in a crossed manner first direction arrange many drive wire G1, G2, G3 ..., Gm and second direction arrange a plurality of data lines D1, D2 ..., multiple pixels between Dn, be understandable that, these pixels are set to the matrix structure of the capable n row of m.Described pixel comprises driving circuit 10, electrooptic element PD and a power supply VSS.Each driving circuit 10 connects a drive wire wherein and a data line.A transistor T1 is included in each driving circuit 10.The source electrode of described transistor T1 connects a data line adjacent thereto, and grid connects a drive wire adjacent thereto.The drain electrode of described transistor T1 connects the anode of described electrooptic element PD, and the negative electrode of described electrooptic element PD connects described power supply VSS, wherein, in the present embodiment, and described power supply VSS ground connection.
In the utility model, it will be understood by those skilled in the art that, described display panel also comprises scan line driver 20 and datawire driver 30, scan line driver 20 is for giving many drive wire output switching signals, datawire driver 30 is for giving a plurality of data lines outputting data signals, for selecting the i-th row jth row (i=1,2 ..., m, j=1,2 ..., driving circuit n), control the state of the transistor in this driving circuit, and control the luminance of electrooptic element PD.When scan line driver 20 and datawire driver 30 choose some driving circuits, the data line be connected with this driving circuit is simultaneously as the voltage source of the electrooptic element PD in this driving circuit.In the present embodiment, the method of digital drive is adopted to drive display panel, comprise 1000 drive wires for display panel to be described, general, the ultimate value in the reaction time of human eye is 12ms, i.e. the limiting frequency of people's ophthalmic reaction is 75Hz, therefore, we adopt the scanning frame frequency of certain frequency, make the imaging picture of display panel in the process of saltus step, human eye perceives less than.Preferably, the scanning frame frequency of employing is more than or equal to 75Hz.
In the present embodiment, the luminous signal of electrooptic element PD is controlled by the conducting of described transistor T1 and cut-off.In the utility model, described transistor T1 can be PMOS transistor.When scanner driver 20 and data driver 30 select some driving circuits 10, the described transistor T1 conducting in this driving circuit 10, makes electrooptic element PD conducting luminous.
It should be noted that, relative to driving circuit of the prior art, in the utility model, a transistor T1 is only included in driving circuit 10, circuit structure is simple, therefore, in the display panel of same size, more driving circuit can be set, thus improve the PPI of display panel, in addition, owing to not comprising electric capacity in the driving circuit 10 in the utility model, so the aperture opening ratio of pixel can not be affected because of the area of electric capacity, the power consumption of display panel also can not be increased because of the charge/discharge operation of electric capacity.
In addition; the method that this practicality is not limited to adopt digital circuit to drive drives display panel; also the mode of mimic channel can be adopted, as long as make scanning frame frequency make human eye perceives less than the saltus step of display frame within the specific limits, also within the thought range of the utility model protection.
In the present embodiment; described electrooptic element PD can be Organic Light Emitting Diode (OLED); also can be inorganic light-emitting diode (LED); as long as the function converting electrical signals to light signal of electrooptic element can be realized; and according to the intensity display brightness of electric signal, this is within the thought range of protection of the present utility model.
In the utility model, described transistor T1 is not limited to as PMOS transistor, can also be nmos pass transistor, as long as namely can exist according to the switch of the selection control electrooptic element PD of drive wire, this is also within the thought range of protection of the present utility model.
In sum, the display panel that the utility model provides, comprise: many drive wires, , the a plurality of data lines crossing with described many drive wires, and be arranged at multiple pixels of described many drive wires and described a plurality of data lines intersection region, described pixel comprises driving circuit, electrooptic element and a power supply, wherein, each driving circuit comprises a transistor, the grid of described transistor is connected with a described drive wire, the source electrode of described transistor is connected with a described data line, the drain electrode of described transistor is connected with the anode of described electrooptic element, the negative electrode of described electrooptic element is connected with described power supply.In the utility model, driving circuit structure is simple, while the quantity reducing transistor in driving circuit, does not need to use memory capacitance, thus improves the PPI of display panel.In addition, owing to not comprising electric capacity in the driving circuit 10 in the utility model, so the aperture opening ratio of pixel can not be affected because of the area of electric capacity, the power consumption of display panel also can not be increased because of the charge/discharge operation of electric capacity.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (8)
1. a display panel, is characterized in that, comprising: many drive wires, a plurality of data lines crossing with described many drive wires, and the multiple pixels being arranged at described many drive wires and described a plurality of data lines intersection region;
Described pixel comprises driving circuit, electrooptic element and a power supply;
Wherein, described driving circuit comprises a transistor;
The grid of described transistor is connected with a described drive wire, and the source electrode of described transistor is connected with a described data line, and the drain electrode of described transistor is connected with the anode of described electrooptic element, and the negative electrode of described electrooptic element is connected with described power supply.
2. display panel as claimed in claim 1, it is characterized in that, the driving method of described display panel is digital drive.
3. display panel as claimed in claim 2, it is characterized in that, the driving frame frequency of described display panel is more than or equal to 75Hz.
4. display panel as claimed in claim 1, it is characterized in that, described electrooptic element is Organic Light Emitting Diode, or inorganic light-emitting diode.
5. display panel as claimed in claim 1, it is characterized in that, described transistor is PMOS transistor, or nmos pass transistor.
6. display panel as claimed in claim 1, it is characterized in that, described display panel also comprises: the scan line driver be connected with described many drive wires, and the datawire driver be connected with described a plurality of data lines.
7. display panel as claimed in claim 1, is characterized in that, described power ground.
8. display panel as claimed in claim 1, is characterized in that, only comprise a transistor in each described driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868653.7U CN204348302U (en) | 2014-12-31 | 2014-12-31 | Display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868653.7U CN204348302U (en) | 2014-12-31 | 2014-12-31 | Display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204348302U true CN204348302U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420868653.7U Expired - Fee Related CN204348302U (en) | 2014-12-31 | 2014-12-31 | Display panel |
Country Status (1)
| Country | Link |
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| CN (1) | CN204348302U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767099A (en) * | 2018-11-07 | 2020-02-07 | 云谷（固安）科技有限公司 | Display panel and display terminal |
| CN112868223A (en) * | 2018-10-27 | 2021-05-28 | 华为技术有限公司 | Sensor and display device |
-
2014
- 2014-12-31 CN CN201420868653.7U patent/CN204348302U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112868223A (en) * | 2018-10-27 | 2021-05-28 | 华为技术有限公司 | Sensor and display device |
| CN112868223B (en) * | 2018-10-27 | 2022-06-10 | 华为技术有限公司 | Sensor and display device |
| US11594161B2 (en) | 2018-10-27 | 2023-02-28 | Huawei Technologies Co., Ltd. | Sensor and display device |
| CN110767099A (en) * | 2018-11-07 | 2020-02-07 | 云谷（固安）科技有限公司 | Display panel and display terminal |
| CN110767099B (en) * | 2018-11-07 | 2022-09-13 | 云谷（固安）科技有限公司 | Display panel and display terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150520 Termination date: 20191231 |