CN1584956A - Organic Light Emitting Diode Display Panel Provides Uniform Height - Google Patents
Organic Light Emitting Diode Display Panel Provides Uniform Height Download PDFInfo
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- CN1584956A CN1584956A CN200410049266.1A CN200410049266A CN1584956A CN 1584956 A CN1584956 A CN 1584956A CN 200410049266 A CN200410049266 A CN 200410049266A CN 1584956 A CN1584956 A CN 1584956A
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- display panel
- sweep trace
- led display
- supply unit
- organic led
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- 239000011159 matrix material Substances 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 230000035876 healing Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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Abstract
本发明提供一种有机发光二极管显示面板，其包含有一基板，一像素矩阵设于基板上，多条扫描线设于基板表面，用来传递一驱动信号至像素矩阵，以及多条导线用来连接上述扫描线至至少一电源装置，以将电源装置提供的驱动信号传递至各扫描线，且这些导线随着距离电源装置的远近不同而具有不同大小的截面积。
The present invention provides an organic light emitting diode display panel, which includes a substrate, a pixel matrix arranged on the substrate, a plurality of scanning lines arranged on the surface of the substrate for transmitting a driving signal to the pixel matrix, and a plurality of wires for connecting the above-mentioned scanning lines to at least one power supply device to transmit the driving signal provided by the power supply device to each scanning line, and these wires have cross-sectional areas of different sizes depending on the distance from the power supply device.
Description
Technical field
The present invention puts it briefly, and (organic light-emitting diode, OLED) display panel refer in particular to a kind of organic LED display panel that uniform luminance is provided about a kind of Organic Light Emitting Diode.
Background technology
Organic Light Emitting Diode is originally as a current driving element, its luminosity decides according to the size by electric current, at present Organic Light Emitting Diode is applied in the size of promptly passing through the drive current of control Organic Light Emitting Diode on the matrix form display panel, reaches the effect that shows different brightness (being called gray-scale value again).
According to the difference of type of drive, the matrix form display panel can be divided into two kinds of passive type matrix display panel and active type matrix display panels.The characteristics of passive type matrix display panel are every row or every row pixel arrangement one drive circuit, driven sweep line in proper order, to drive the pixel be positioned at different rows/list one by one, therefore the fluorescent lifetime of each pixel that go/lists can be subject to the sweep frequency and the number of scanning lines of display panel, relatively is not suitable for the display panel of big picture and high definition (the expression sweep trace increases).The active type matrix display panel then forms independently switch (driving circuit) in each pixel, comprise a capacitor, an Organic Light Emitting Diode light-emitting component and at least two thin film transistor (TFT)s, regulate the size of the drive current of Organic Light Emitting Diode to utilize driving circuit, therefore, still can provide bigger light output quantity, than gay colours and reaction time faster even under the requirement of big picture and high definition.
Adopt the passive type matrix or the organic LED display panel of active type matrix design no matter be, when the drive current maldistribution of Organic Light Emitting Diode, all can cause having on the display panel for example wall shape (mura) phenomenon of the uneven defective of bright dark degree.Along with the far and near difference between the distance supply unit, be connected in supply unit and just have different impedances with power lead itself between picture element matrix, and every sweep trace is provided with far and near different also can the cause different impedance consumption of position apart from supply unit, therefore this impedance contrast is apart from the brightness irregularities that will cause organic LED display panel, especially along with the making of large size panel, pixel intensity homogeneity on the display panel is not good may to cause the gray-scale value of whole display panel and gray-scale value that driving circuit is sent difference to some extent, even causes image fault.
Summary of the invention
Therefore, purpose of the present invention is promptly providing a kind of organic LED display panel that uniform luminance is provided.
In preferred embodiment of the present invention, this organic LED display panel includes a substrate, one picture element matrix is located on the substrate, the multi-strip scanning line is located at substrate surface, be used for transmitting a drive signal to picture element matrix, and many leads are used for connecting above-mentioned sweep trace at least one supply unit, be passed to each sweep trace with the drive signal that supply unit is provided, and these leads comprise the sectional areas of at least two different sizes.
Because changing, the present invention is connected in the sectional area of the lead between supply unit and sweep trace to improve the difference of its contact impedance, for example has the big sectional area of healing apart from the distance of the supply unit lead far away of healing, lead apart from the close together of supply unit has less sectional area, therefore can avoid lead that the problem that impedance increases takes place along with the far and near different of distance supply unit.In addition, the present invention can also further change the sectional area of each sweep trace, for example has the big sectional area of healing apart from the distance of the supply unit sweep trace far away of healing, sweep trace apart from the close together of supply unit has less sectional area, can reach equally and improve the uneven purpose of distribution of impedance.Because organic LED display panel of the present invention can provide distribution of impedance comparatively uniformly, the therefore variety of issue that can effectively improve brightness irregularities and derive.
Description of drawings
Fig. 1 and Fig. 2 are the structural representation of the present invention's one organic LED display panel.
The reference numeral explanation
10 substrates, 20 scan line driver
30 datawire drivers, 40 control circuits
50 supply units, 52 power leads
D1～D8 data line S1～S160 sweep trace
X1～X7, Y1～Y8 lead
Embodiment
Please refer to Fig. 1, Fig. 1 is the structural representation of the present invention's one organic LED display panel.As shown in Figure 1, organic LED display panel of the present invention includes a substrate 10, one by the multi-strip scanning line (for example (for example the picture element matrix of D1～D8) defined is located on the substrate 10 for S1～S7) and many data lines, sweep trace S1～S7 is connected at least one scan line driver 20, with the drive signal of transmitting one switch/addressing to picture element matrix, data line D1～D8 is connected at least one datawire driver 30, to receive a viewdata signal and to be passed in the picture element matrix.
For fear of with supply unit Vx between the far and near different inhomogeneous and uneven problems of each pixel intensity of distribution of impedance on the organic LED display panel that cause of distance, the present invention is connected in the sectional area of the lead X1～X7 between supply unit Vx and sweep trace S1～S7 with change, or the sectional area of change sweep trace S1～S7, improve the uneven situation of distribution of impedance.
Please refer to Fig. 2, Fig. 2 is the rough schematic view of organic LED display panel shown in Figure 1.In order to illustrate further feature of the present invention place, only display power supply device and sweep trace among Fig. 2, other electronic components on the organic LED display panel are techniques well known, do not repeat them here.As shown in Figure 2, substrate 10 is provided with multi-strip scanning line S1～S160, one external power source device 50 utilizes a main power lead 52 to provide current to each sweep trace S1～S160, utilize many leads (for example touch pore structure, represent with the circle circle among Fig. 2) to be connected between power lead 52 and sweep trace S1～S160.Wherein the number of sweep trace can be adjusted to some extent along with the size difference of organic LED display panel.
In preferred embodiment of the present invention, change the contact impedance that lead causes between power lead 52 and sweep trace S1～S160, distance along with distance supply unit 50 positions, progressively increase the sectional area size of lead (touching the hole), for example has the big sectional area of healing apart from the distance of supply unit 50 lead far away of healing, lead apart from the close together of supply unit has less sectional area, therefore make the lead contact impedance add that power lead 52 impedances own can reach the impedance unanimity that each bar sweep trace S1～S160 is assigned to, and then the uniformity of luminance of increase organic LED display panel, for instance, do not utilizing before adjustment of the present invention touches the hole contact impedance, the amount of resistance measured value that touches the both sides, hole that is connected between power lead 52 and sweep trace S1 is respectively 18.8 Ω and 31.94 Ω, the amount of resistance measured value that touches the both sides, hole that is connected between power lead 52 and sweep trace S3 is respectively 25.24 Ω and 38.77 Ω, and the amount of resistance measured value that touches the both sides, hole that is connected between power lead 52 and sweep trace S160 is respectively 44.82 Ω and 52.8 Ω.Can find clearly by these amount of resistance measured values, the impedance meeting of power lead 52 own is along with distance supply unit 50 far and gradually increases, therefore the sectional area in hole is touched in adjustment of the present invention, make apart from supply unit 50 hole of touching far away of healing and have bigger sectional area and less contact impedance (impedance is inversely proportional to sectional area approximately), utilize the sectional area size to come the resistance difference of offset supply line 52 itself, reach the purpose of impedance matching.
In another embodiment of the present invention, change the sectional area of sweep trace S1～S160, for example along with the distance of distance supply unit 50 positions, progressively increase the live width size of sweep trace S1～S160, make the sweep trace impedance add that power lead 52 impedances own can reach that each pixel all has identical impedance consumption in the picture element matrix, and then increase the uniformity of luminance of organic LED display panel.In addition, in other embodiments of the invention, can also look actual needs in conjunction with among above-mentioned two embodiment, adjust the sweep trace live width simultaneously and be connected in power lead and sweep trace between sectional area of wire, or other leads form distribution of impedance uniformly with the resistance difference of offset supply line itself on the adjustment organic LED display panel.
Compare with the organic LED display panel of routine, the sectional area that the present invention's change is connected in the lead between supply unit and sweep trace is to improve the difference of contact impedance on the display panel, and the sectional area that perhaps changes each sweep trace improves the uneven purpose of distribution of impedance on the display panel to reach.Because organic LED display panel of the present invention can provide distribution of impedance comparatively uniformly, the therefore variety of issue that can effectively improve brightness irregularities and derive.
The above only is preferred embodiment of the present invention, and all equivalences of carrying out according to claim of the present invention change and revise, and all should belong to covering scope of the present invention.
Claims (7)
1. organic LED display panel that uniform luminance can be provided, this organic LED display panel includes:
One substrate includes a picture element matrix on this substrate;
The multi-strip scanning line is located at this substrate surface, is used for transmitting a drive signal to this picture element matrix; And
Many leads are used for connecting this multi-strip scanning line at least one supply unit, be passed to respectively this sweep trace with the drive signal that this supply unit is provided, and these many leads comprise the sectional area of at least two different sizes.
2. organic LED display panel as claimed in claim 1, wherein these many leads comprise one first lead and one second lead, and the distance between this first lead and this supply unit is less than the distance between this second lead and this supply unit.
3. organic LED display panel as claimed in claim 1, wherein the sectional area of this first lead is less than the sectional area of this second lead.
4. organic LED display panel that uniform luminance can be provided, this organic LED display panel includes:
One substrate includes a picture element matrix on this substrate; And
The multi-strip scanning line is located at this substrate surface, is used for transmitting a drive signal to this picture element matrix, and this multi-strip scanning line comprises the sectional area of at least two different sizes.
5. organic LED display panel as claimed in claim 4, wherein this multi-strip scanning line is electrically connected at least one supply unit.
6. organic LED display panel as claimed in claim 5, wherein this multi-strip scanning line comprises one first sweep trace and one second sweep trace, and the distance between this first sweep trace and this supply unit is less than the distance between this second sweep trace and this supply unit.
7. organic LED display panel as claimed in claim 6, wherein the sectional area of this first sweep trace is less than the sectional area of this second sweep trace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410049266.1A CN1584956B (en) | 2004-06-07 | 2004-06-07 | Organic light emitting diode display panel capable of providing uniform brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410049266.1A CN1584956B (en) | 2004-06-07 | 2004-06-07 | Organic light emitting diode display panel capable of providing uniform brightness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1584956A true CN1584956A (en) | 2005-02-23 |
| CN1584956B CN1584956B (en) | 2010-04-28 |
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| CN200410049266.1A Expired - Lifetime CN1584956B (en) | 2004-06-07 | 2004-06-07 | Organic light emitting diode display panel capable of providing uniform brightness |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329043B (en) * | 2007-06-18 | 2010-09-01 | 南茂科技股份有限公司 | Light source assembly and method for adjusting brightness of light source assembly |
| CN103456743A (en) * | 2013-09-04 | 2013-12-18 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method of array substrate, flexible display device and electronic device |
| CN104733601A (en) * | 2013-12-20 | 2015-06-24 | 祯信股份有限公司 | Light-emitting diode film circuit board and decorative materials |
| CN105788516A (en) * | 2014-12-23 | 2016-07-20 | 昆山国显光电有限公司 | OLED display panel, manufacturing method thereof, and active matrix organic light-emitting display |
| CN108389880A (en) * | 2018-02-23 | 2018-08-10 | 武汉华星光电半导体显示技术有限公司 | A kind of OLED display panel and OLED display |
| CN110416265A (en) * | 2019-07-29 | 2019-11-05 | 上海天马有机发光显示技术有限公司 | Organic light emitting display panel and ageing method, organic light-emitting display device |
| CN111007917A (en) * | 2018-10-04 | 2020-04-14 | 群创光电股份有限公司 | electronic device |
| US11042062B2 (en) | 2018-10-04 | 2021-06-22 | Innolux Corporation | Electronic device |
| WO2022077547A1 (en) * | 2020-10-14 | 2022-04-21 | Tcl华星光电技术有限公司 | Backlight module and display device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2372749Y (en) * | 1998-12-31 | 2000-04-05 | 海信集团公司 | Electroluminescence display device |
| JP4310984B2 (en) * | 2002-02-06 | 2009-08-12 | 株式会社日立製作所 | Organic light emitting display |
-
2004
- 2004-06-07 CN CN200410049266.1A patent/CN1584956B/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329043B (en) * | 2007-06-18 | 2010-09-01 | 南茂科技股份有限公司 | Light source assembly and method for adjusting brightness of light source assembly |
| CN103456743A (en) * | 2013-09-04 | 2013-12-18 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method of array substrate, flexible display device and electronic device |
| CN103456743B (en) * | 2013-09-04 | 2016-11-23 | 京东方科技集团股份有限公司 | Array base palte and preparation method thereof, flexible display device and electronic equipment |
| CN104733601A (en) * | 2013-12-20 | 2015-06-24 | 祯信股份有限公司 | Light-emitting diode film circuit board and decorative materials |
| CN105788516A (en) * | 2014-12-23 | 2016-07-20 | 昆山国显光电有限公司 | OLED display panel, manufacturing method thereof, and active matrix organic light-emitting display |
| CN108389880A (en) * | 2018-02-23 | 2018-08-10 | 武汉华星光电半导体显示技术有限公司 | A kind of OLED display panel and OLED display |
| CN111007917A (en) * | 2018-10-04 | 2020-04-14 | 群创光电股份有限公司 | electronic device |
| US11042062B2 (en) | 2018-10-04 | 2021-06-22 | Innolux Corporation | Electronic device |
| CN110416265A (en) * | 2019-07-29 | 2019-11-05 | 上海天马有机发光显示技术有限公司 | Organic light emitting display panel and ageing method, organic light-emitting display device |
| CN110416265B (en) * | 2019-07-29 | 2022-02-01 | 武汉天马微电子有限公司 | Organic light-emitting display panel, aging treatment method and organic light-emitting display device |
| WO2022077547A1 (en) * | 2020-10-14 | 2022-04-21 | Tcl华星光电技术有限公司 | Backlight module and display device |
| US11762234B2 (en) | 2020-10-14 | 2023-09-19 | Tcl China Star Optoelectronics Technology Co., Ltd | Backlight module and display device |
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| Publication number | Publication date |
|---|---|
| CN1584956B (en) | 2010-04-28 |
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Granted publication date: 20100428 |