CN107742481B - Special-shaped display panel and display device - Google Patents
Special-shaped display panel and display device Download PDFInfo
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- CN107742481B CN107742481B CN201711226433.9A CN201711226433A CN107742481B CN 107742481 B CN107742481 B CN 107742481B CN 201711226433 A CN201711226433 A CN 201711226433A CN 107742481 B CN107742481 B CN 107742481B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
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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
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Abstract
The embodiment of the invention provides a special-shaped display panel and a display device, relates to the technical field of display and aims to solve the problem of uneven display of a display area. The special-shaped display panel comprises a display area and a non-display area, wherein the display area comprises a first display area and a second display area, the first display area is provided with at least one first data line, the second display area is provided with at least one second data line, the length of the first data line is smaller than that of the second data line, the non-display area is provided with at least one impedance compensation unit, and the impedance compensation units are in one-to-one correspondence with the first data lines. The special-shaped display panel is used for realizing picture display.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a special-shaped display panel and a display device.
[ background of the invention ]
With the rapid development of display technologies, the special-shaped display panel is more and more widely applied. The special-shaped display panel is a display panel with a special shape which is reformed on the basis of the traditional display panel, and the common special-shaped display panel mainly has fan-shaped, arc-shaped, circular, triangular and other structural forms at present.
In the irregular display panel, since the number of pixels in the irregular display area is different from the number of pixels in the abnormal display area, as shown in fig. 1, taking the data line extending in the column direction as an example, since the display area of the irregular display panel has an irregular shape, the data line D1 and the data line D2 with two lengths exist in the irregular display panel, the impedance of the data line D1 is different from the impedance of the data line D2, and further, under the same data signal, the display brightness of the area where the data line D1 is located and the display brightness of the area where the data line D2 is located are different, and the display is not uniform.
[ summary of the invention ]
In view of the above, the present invention provides a special-shaped display panel and a display device to solve the problem of uneven display in the conventional special-shaped display panel.
The invention provides a special-shaped display panel, which comprises a display area and a non-display area, wherein the display area comprises a first display area and a second display area; the first display area is provided with at least one first data line; the second display area is provided with at least one second data line; the length of the first data line is less than that of the second data line; the non-display area is provided with at least one impedance compensation unit, and the impedance compensation units correspond to the first data lines one to one; the impedance compensation unit is located between the chip input pin end and the chip output pin end of the special-shaped display panel.
The invention also provides a display device which comprises the special-shaped display panel.
Compared with the prior art, the special-shaped display panel provided by the invention has the following beneficial effects:
according to the special-shaped display panel, the impedance compensation unit corresponding to the first data line is arranged in the non-display area, so that the impedance compensation unit compensates for the impedance difference between the first data line and the second data line caused by different lengths, the problem that in the prior art, due to the impedance difference between the first data line and the second data line, the display of the first display area and the second display area is uneven is solved, and the display effect is improved; in addition, the invention utilizes the idle space between the input pin and the output pin of the driving chip, and the impedance compensation unit is arranged between the chip input pin end and the chip output pin end of the special-shaped display panel corresponding to the idle space, so that the impedance compensation unit is prevented from being arranged by occupying the space originally used for displaying, the area of the display area of the special-shaped display panel is prevented from being reduced, and the aperture ratio of the special-shaped display panel is improved; in addition, the impedance compensation unit is arranged between the chip input pin end and the chip output pin end, so that the occupied area of other non-display areas is avoided, and the narrowing of the frame is facilitated.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art display panel with a special shape;
fig. 2 is a schematic structural diagram of a special-shaped display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a non-display area of a special-shaped display panel according to an embodiment of the present invention;
fig. 4 is a first schematic structural diagram of a resistance compensation module of a special-shaped display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a resistance compensation module of an irregular display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram three of a resistance compensation module of an irregular display panel according to an embodiment of the present invention;
FIG. 7 is a schematic plan view of a capacitance compensation module of a special-shaped display panel according to an embodiment of the present invention;
FIG. 8 is a first schematic sectional view taken along line A-A' of FIG. 7; (ii) a
FIG. 9 is a second cross-sectional view taken along line A-A' of FIG. 7;
FIG. 10 is a cross-sectional view taken along line A-A' of FIG. 7;
FIG. 11 is a schematic cross-sectional view of a special-shaped display panel according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a display device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
An embodiment of the present invention provides a special-shaped display panel, as shown in fig. 2, the special-shaped display panel includes a display area 1 and a non-display area 2, the display area 1 includes a first display area 11 and a second display area 12, the first display area 11 is provided with at least one first data line D1, the second display area is provided with at least one second data line D2, the length of the first data line D1 is smaller than the length of the second data line D2, the non-display area 2 is provided with at least one impedance compensation unit 3, and the impedance compensation units 3 are in one-to-one correspondence with the first data lines D1.
During the display of the irregular display panel, the impedance compensation unit 3 performs impedance compensation on the first data line D1. In the special-shaped display panel provided by the embodiment of the invention, the impedance unit 3 corresponding to the first data line D1 is arranged in the non-display area 2, so that the impedance compensation unit 3 compensates for the impedance difference between the first data line D1 and the second data line D2 caused by different lengths, thereby avoiding the problem of display unevenness between the first display area 11 and the second display area 12 caused by the impedance difference between the first data line D1 and the second data line D2, and improving the display effect.
For example, the non-display area 2 is provided with a driving chip for providing data driving signals to the first data line D1 and the second data line D2, the driving chip includes a plurality of input pins and a plurality of output pins, correspondingly, as shown IN fig. 3, the non-display area of the special-shaped display panel provided IN this embodiment is provided with a plurality of chip input pin terminals IN and a plurality of chip output pin terminals OUT corresponding thereto, and the impedance compensation unit 3 is located between the chip input pin terminal IN and the chip output pin terminal OUT. Because there is an idle space between the input pin and the output pin of the driver chip, and there is a corresponding space on the special-shaped display panel, in the prior art, a short bar (shorting bar) or an Array Test unit (Array Test) structure can be usually configured by using the space. IN this embodiment, the impedance compensation unit 3 is disposed between the chip input pin IN and the chip output pin OUT of the special-shaped display panel, so that the impedance compensation unit 3 is prevented from occupying the space originally used for displaying, and thus the area of the display region of the special-shaped display panel is prevented from being reduced; IN addition, the impedance compensation unit 3 is arranged between the chip input pin end IN and the chip output pin end OUT, so that the area occupied by other non-display areas is avoided, and the narrowing of a frame is facilitated.
Optionally, the impedance compensation unit 3 includes a resistance compensation module connected to the first data line D1; specifically, the resistance compensation module may be the compensation data line B1. As shown in fig. 4, the compensation data line B1 is bent, the compensation data line B1 is connected to the first data line D1, and the compensation data line B1 and the first data line D1 transmit data signals together, which is equivalent to extending the length of the first data line D1 in a limited space, and the length of the compensation data line B1 is designed such that the sum of the lengths of the first data line D1 and the compensation data line B1 is equal to the length of the second data line D2, so as to compensate for the impedance difference between the first data line D1 and the second data line D2. Alternatively, the compensation data line B1 may be made of the same material as the first data line D1 to simplify the manufacturing process.
In addition, as shown in fig. 5, the resistance compensation module may be further configured as a compensation resistance R connected to the first data line D1. The compensation resistor R has a resistance greater than that of the first data line D1, and when the compensation resistor R is connected to the first data line D1, the compensation resistor R and the first data line D1 transmit data signals together, and the compensation resistor R compensates for the impedance difference between the first data line D1 and the second data line D2. Specifically, the magnitude of the compensation resistor R may be set according to the impedance difference between the first data line D1 and the second data line D2. Optionally, the compensation resistor R may be made of a semiconductor material, for example, a poly resistor is selected as the compensation resistor R, and during the manufacturing process, the compensation resistor R may be disposed on the same layer as the active layer of the thin film transistor of the special-shaped display panel, so as to simplify the manufacturing process.
For example, as shown in fig. 6, the compensation resistor R and the compensation data line B1 may be used together as a resistor compensation module to compensate for the impedance difference between the first data line D1 and the second data line D2 according to the embodiment of the present invention.
It should be noted that, in addition to the above-mentioned manner of compensating the impedance of the first data line D1 by using the resistance compensation module, the impedance of the first data line D1 may also be compensated by using the capacitance compensation module. Illustratively, as shown in fig. 7, the impedance compensation unit 3 includes a capacitance compensation module, and the capacitance compensation module is composed of a compensation electrode C and a first data line D1. The compensation electrode C is arranged in a different layer from the first data line D1, and the orthographic projection of the compensation electrode C on the plane of the specially-shaped display panel is overlapped with the orthographic projection of the first data line on the specially-shaped display panel. For example, the compensation electrode C may be connected to signals such as PVDD, PVEE, VGH, or VGL to obtain a fixed potential, and after the compensation electrode C obtains the fixed potential, a capacitor is formed between the compensation electrode C and the first data line D1 to perform capacitance compensation on the first data line D1, so as to compensate for the impedance difference between the first data line D1 and the second data line D2.
Fig. 8 to 10 are schematic cross-sectional views taken along a-a' in fig. 7, and for example, a single-layer capacitor may be formed as shown in fig. 8, that is, a compensation electrode C is disposed at one side of the first data line D1, wherein an insulating layer is disposed between the compensation electrode C and the first data line D1; it is also possible to form a double-layer capacitor as shown in fig. 9, that is, two compensation electrodes are respectively disposed on the upper and lower sides of the first data line D1, in this case, the compensation electrodes include a first compensation electrode C1 and a second compensation electrode C2, the first compensation electrode C1 and the second compensation electrode C1 are disposed in different layers, and the orthographic projection of the first compensation electrode C1 on the irregular display panel overlaps the orthographic projection of the second compensation electrode C2 on the irregular display panel. The first data line D1 is located between the layer where the first compensation electrode C1 is located and the layer where the second compensation electrode C2 is located, the first compensation electrode C1 is connected to a first fixed potential, the second compensation electrode C2 is connected to a second fixed potential, for example, the first compensation electrode C1 is connected to a PVDD signal, and the second compensation electrode C2 is connected to a PVEE signal, so that the first compensation electrode C1 and the second compensation electrode C2 form capacitances with the first data line D1, respectively, thereby increasing the impedance of the first data line D1 and compensating the impedance difference between the first data line D1 and the second data line D2. Compared with the single-layer capacitor, the double-layer capacitor is formed, the dead-against area of the compensation electrode and the first data line is increased, and the compensation effect of the capacitance compensation module on the first data line D1 can be improved.
In addition, the first compensation electrode C1 and the second compensation electrode C2 can be connected to the third compensation electrode C3, so that the first compensation electrode C1 and the second compensation electrode C2 obtain the same fixed potential. As shown in fig. 10, at this time, the first compensation electrode C1 is connected to the second compensation electrode C2 through the third compensation electrode C3, so that impedance compensation for the first data line D1 can be achieved through a fixed potential signal, and the arrangement of the first compensation electrode C1 and the second compensation electrode C2 increases the facing area of the compensation electrode and the first data line compared with the arrangement of a single-layer capacitor, thereby improving the compensation effect of the capacitance compensation module on the first data line D1. Illustratively, in manufacturing, via holes are formed on the first compensation electrode C1 and the second compensation electrode C2, and the third compensation electrode C3 is connected to the first compensation electrode C1 and the second compensation electrode C2 through the via holes.
As shown in fig. 11, the irregular display panel includes a buffer layer 002, an active layer 003, a gate insulating layer 004, a gate layer 005, a first interlayer insulating layer 006, a first metal layer 007, a second interlayer insulating layer 008, a source-drain metal layer 009, a planarization layer 010, a reflective electrode layer 011, a pixel defining layer 012, a light emitting layer 013, and a cathode layer 014, which are sequentially stacked on a substrate 001. On the premise that the above positional relationship between the compensation electrode and the first data line D1 is satisfied, the compensation electrode and the first data line D1 may be provided in any one of the gate layer 005, the first metal layer 007, the source-drain metal layer 009, and the reflective electrode layer 011, and the compensation electrode may be provided on the active layer 003. The specific positional relationship is as follows:
the first compensation electrode C1 and the reflective electrode layer 011 are arranged at the same layer, the first data line D1 and the source/drain metal layer 009 are arranged at the same layer, and the second compensation electrode C2 and the gate layer 005 are arranged at the same layer;
the first compensation electrode C1 and the reflective electrode layer 011 are arranged in the same layer, the first data line D1 and the source drain metal layer 009 are arranged in the same layer, and the second compensation electrode C2 and the active layer 003 are arranged in the same layer;
third, the first compensation electrode C1 is disposed in the same layer as the reflective electrode layer 011, the first data line D1 is disposed in the same layer as the gate layer 005, and the second compensation electrode C2 is disposed in the same layer as the active layer 003;
the first compensation electrode C1 is disposed in the same layer as the source-drain metal layer 011, the first data line D1 is disposed in the same layer as the gate layer 005, and the second compensation electrode C2 is disposed in the same layer as the active layer 003.
As shown in fig. 12, an embodiment of the present invention further provides a display device, which includes the above-mentioned special-shaped display panel.
The specific structure of the special-shaped display panel is the same as that of the above-mentioned embodiment, and is not described herein again. The display device can be any electronic equipment with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic paper book or a television.
Because the display device provided by the embodiment includes the special-shaped display panel as described in the above embodiment, with the display device provided by the embodiment, the impedance compensation unit corresponding to the first data line is disposed in the non-display area, so that the impedance compensation unit compensates for the impedance difference between the first data line and the second data line caused by the length difference, thereby solving the problem of display unevenness between the first display area and the second display area caused by the impedance difference between the first data line and the second data line in the prior art, and improving the display effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (12)
1. A shaped display panel comprising a display area and a non-display area, the display area comprising a first display area and a second display area; the first display area is provided with at least one first data line; the second display area is provided with at least one second data line; the length of the first data line is smaller than that of the second data line; the non-display area is provided with at least one impedance compensation unit, and the impedance compensation units correspond to the first data lines one to one;
the non-display area is provided with a driving chip for providing data driving signals for the first data line and the second data line, and the driving chip comprises a plurality of input pins and a plurality of output pins;
the non-display area is provided with a plurality of chip input pin ends and a plurality of chip output pin ends corresponding to the plurality of input pins and the plurality of output pins of the driving chip;
the impedance compensation unit is located between the chip input pin end and the chip output pin end.
2. The shaped display panel according to claim 1, wherein the impedance compensation unit comprises a resistance compensation module connected to the first data line.
3. The shaped display panel according to claim 2, wherein the resistance compensation module comprises compensation data lines; the compensation data line is made of the same material as the first data line.
4. The shaped display panel according to claim 3, wherein the compensation data lines are bent.
5. The shaped display panel according to claim 2, wherein the resistance compensation module comprises a compensation resistor; the resistance value of the compensation resistor is larger than that of the first data line.
6. The shaped display panel according to claim 5, wherein the compensation resistors are made of a semiconductor material and are disposed in the same layer as the active layers of the thin film transistors of the shaped display panel.
7. The shaped display panel according to claim 1, wherein the impedance compensation unit comprises a capacitive compensation module, the capacitive compensation module being formed by a compensation electrode and the first data line; the compensation electrode and the first data line are arranged in different layers, and the orthographic projection of the compensation electrode on the plane of the special-shaped display panel is overlapped with the orthographic projection of the first data line on the plane of the special-shaped display panel; the compensation electrode is connected with a fixed potential.
8. The shaped display panel according to claim 7, wherein the compensation electrodes comprise a first compensation electrode and a second compensation electrode, the first compensation electrode being disposed in a different layer than the second compensation electrode; the orthographic projection of the first compensation electrode on the specially-shaped display panel and the orthographic projection of the second compensation electrode on the specially-shaped display panel are overlapped; the first data line is positioned between the layer where the first compensation electrode is positioned and the layer where the second compensation electrode is positioned; the first compensation electrode is connected with a first fixed potential, and the second compensation electrode is connected with a second fixed potential.
9. The shaped display panel according to claim 8, wherein the first compensation electrode and the second compensation electrode are both connected to a third compensation electrode, and the first fixed potential is equal to the second fixed potential.
10. The shaped display panel according to claim 9, wherein vias are provided on the first and second compensation electrodes, and the third compensation electrode is connected to the first and second compensation electrodes through the vias.
11. The special-shaped display panel according to claim 8, wherein the special-shaped display panel comprises an active layer, a gate layer, a source drain metal layer and a reflective electrode layer which are arranged in a stacked manner;
the first compensation electrode and the reflecting electrode layer are arranged on the same layer, the first data line and the source drain metal layer are arranged on the same layer, and the second compensation electrode and the gate layer are arranged on the same layer;
alternatively, the first and second electrodes may be,
the first compensation electrode and the reflecting electrode layer are arranged on the same layer, the first data line and the source drain metal layer are arranged on the same layer, and the second compensation electrode and the active layer are arranged on the same layer;
alternatively, the first and second electrodes may be,
the first compensation electrode and the reflective electrode layer are arranged at the same layer, the first data line and the gate layer are arranged at the same layer, and the second compensation electrode and the active layer are arranged at the same layer;
alternatively, the first and second electrodes may be,
the first compensation electrode and the source drain metal layer are arranged on the same layer, the first data line and the gate layer are arranged on the same layer, and the second compensation electrode and the active layer are arranged on the same layer.
12. A display device, characterized in that the display device comprises the profiled display panel according to any of claims 1 to 11.
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| CN201711226433.9A CN107742481B (en) | 2017-11-29 | 2017-11-29 | Special-shaped display panel and display device |
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| CN107908031A (en) * | 2017-12-26 | 2018-04-13 | 广东欧珀移动通信有限公司 | Display panel and mobile terminal |
| CN108389881B (en) * | 2018-02-28 | 2020-09-01 | 上海天马微电子有限公司 | Display panel and display device |
| CN108646483B (en) * | 2018-04-26 | 2021-08-24 | 上海中航光电子有限公司 | Array substrate, display panel and display device |
| CN108646484B (en) * | 2018-05-04 | 2021-08-13 | 昆山国显光电有限公司 | Display panel and display device |
| CN108628497B (en) * | 2018-05-04 | 2021-06-11 | 昆山国显光电有限公司 | Capacitive touch panel, compensation method thereof and display device |
| CN108648615B (en) * | 2018-05-14 | 2021-06-15 | 昆山国显光电有限公司 | Display panel |
| CN108761627A (en) * | 2018-05-22 | 2018-11-06 | 武汉华星光电技术有限公司 | Special-shaped panel plate |
| CN109036139B (en) * | 2018-08-24 | 2021-04-20 | 武汉天马微电子有限公司 | Foldable display panel and display device |
| CN109064897B (en) * | 2018-08-31 | 2021-08-24 | 厦门天马微电子有限公司 | Display module and display device |
| CN109147661B (en) * | 2018-09-30 | 2021-02-26 | 武汉天马微电子有限公司 | Display panel and display device |
| CN109584776B (en) * | 2019-01-21 | 2021-12-24 | 武汉天马微电子有限公司 | Display panel and display device |
| CN109801947B (en) * | 2019-01-31 | 2021-08-10 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN109935620B (en) * | 2019-03-14 | 2021-10-26 | 电子科技大学 | Circuit compensation device applied to 'Liuhai screen' notch region |
| CN110164869B (en) | 2019-04-12 | 2021-07-30 | 上海中航光电子有限公司 | Display panel and display device |
| CN110285764B (en) * | 2019-06-14 | 2021-07-02 | 南京中电熊猫平板显示科技有限公司 | Display panel cutting precision measuring method and display panel |
| CN110277019B (en) * | 2019-06-27 | 2021-08-31 | 京东方科技集团股份有限公司 | Display module, display device and display control method thereof |
| CN111769147B (en) * | 2020-06-28 | 2023-12-26 | 合肥维信诺科技有限公司 | Display panel and display device |
| CN114974119A (en) * | 2022-06-29 | 2022-08-30 | 上海天马微电子有限公司 | Display panel and display device |
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| US10395599B2 (en) * | 2016-02-29 | 2019-08-27 | Samsung Display Co., Ltd. | Display device |
| CN106448587B (en) * | 2016-10-08 | 2019-09-20 | 京东方科技集团股份有限公司 | Display panel and its manufacturing method, display device |
| CN107221536B (en) * | 2017-05-25 | 2019-12-13 | 上海天马微电子有限公司 | Array substrate, special-shaped display and display device |
| CN106991990A (en) * | 2017-05-27 | 2017-07-28 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN107123394B (en) * | 2017-06-30 | 2019-04-30 | 上海天马有机发光显示技术有限公司 | A kind of organic light emitting display panel and display device |
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