CN113066844B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN113066844B CN113066844B CN202110313872.3A CN202110313872A CN113066844B CN 113066844 B CN113066844 B CN 113066844B CN 202110313872 A CN202110313872 A CN 202110313872A CN 113066844 B CN113066844 B CN 113066844B
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- pin
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- display panel
- mux unit
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- 239000003990 capacitor Substances 0.000 claims abstract description 60
- 239000002184 metal Substances 0.000 claims description 40
- 239000000758 substrate Substances 0.000 claims description 4
- 230000005670 electromagnetic radiation Effects 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 238000005452 bending Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229920001621 AMOLED Polymers 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/06—Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses a display panel and a display device, comprising a MUX unit, wherein the MUX unit comprises a first grid line and a second grid line which are symmetrically arranged, and the grid of the MUX unit is respectively connected to a first pin and a second pin through the first grid line and the second grid line; the first capacitor and the second capacitor, one end of the first capacitor is connected to the first grid line, the other end of the first capacitor is connected to the third pin, one end of the second capacitor is connected to the second grid line, the other end of the second capacitor is connected to the fourth pin, the first capacitor and the second capacitor are used for adjusting the current of the MUX unit grid signal, and the third pin and the fourth pin are direct current signal pins or GND. According to the technical scheme provided by the embodiment of the application, the capacitance connected with the grid electrode of the MUX unit is arranged on the display panel, and the current of the grid electrode signal of the MUX unit is regulated through the capacitance, so that the intensity of electromagnetic radiation is regulated, and the electromagnetic interference of the MUX unit on the whole antenna is improved.
Description
Technical Field
The present invention relates generally to the field of display technologies, and in particular, to a display panel and a display device.
Background
AMOLED (Active-matrix organic light-emitting diode) display technology has rapid development and wide prospect, and is particularly widely applied to portable mobile products such as mobile phones. For the current AMOLED products, panel bending technology and MUX (data acquisition unit) technology are widely used because of the narrower frame that can be realized, and the existing design method is to design the MUX unit under the bending region, and the bending process is followed by bending the whole circuit of the panel region to the back of the panel display region.
Disclosure of Invention
In view of the foregoing drawbacks or shortcomings of the prior art, it is desirable to provide a display panel and a display device.
In a first aspect, a display panel is provided, including a MUX unit, where the MUX unit includes a first gate line and a second gate line that are symmetrically disposed, and gates of the MUX unit are connected to a first pin and a second pin through the first gate line and the second gate line, respectively;
the first capacitor and the second capacitor are used for adjusting the current of the MUX unit grid signal, and the third pin and the fourth pin are constant potential pins.
In a second aspect, a display device is provided, including the display panel described above.
According to the technical scheme provided by the embodiment of the application, the capacitance connected with the grid electrode of the MUX unit is arranged on the display panel, and the current of the grid electrode signal of the MUX unit is regulated through the capacitance, so that the intensity of electromagnetic radiation is regulated, and the electromagnetic interference of the MUX unit on the whole antenna is improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a display panel according to an embodiment;
FIG. 2 is a schematic diagram of a display panel according to another embodiment;
FIG. 3 is a schematic diagram of a display panel after bending in an embodiment;
FIG. 4 is a schematic cross-sectional view of a display panel according to an embodiment.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1, a display panel is provided, including a MUX unit 1, wherein the MUX unit 1 includes a first gate line 21 and a second gate line 22 which are symmetrically arranged, and the gate of the MUX unit 1 is connected to a first pin 31 and a second pin 32 through the first gate line 21 and the second gate line 22, respectively;
A first capacitor 41 and a second capacitor 42, wherein one end of the first capacitor 41 is connected to the first gate line 21, the other end is connected to a third pin 51, one end of the second capacitor 42 is connected to the second gate line 22, the other end is connected to a fourth pin 52, the first capacitor 41 and the second capacitor 42 are used for adjusting the current of the gate signal of the MUX unit 1, and the third pin 51 and the fourth pin 52 are constant potential pins.
In this embodiment, a MUX (Multiplexer, simply referred to as MUX) circuit control IC includes a plurality of TFT driving switches driving sub-pixels, each TFT driving switch driving a sub-pixel, gates of the plurality of TFT driving switches are all connected to each other and led out through a gate line, and for the MUX circuit, a gate signal of the MUX circuit has a certain load due to parasitic capacitance and resistance of interelectrode capacitance and routing of the TFT itself, and a change relation of current with time can be simplified into the following formula:
Where τ=rc, K is a constant, and as C increases, the current decreases as other parameters are unchanged, and for a simplified MUX gate signal line, the induced magnetic field strength caused by its current can be expressed as: The mu 0 is vacuum magnetic permeability, d is the distance between the two, the form of electric field intensity is the same as the magnetic field intensity, and the reduction of current can directly reduce the magnetic field generated by electromagnetic induction, so that the implementation sets the capacitor connected with the grid electrode of the MUX unit 1 on the display panel, adjusts the current of the grid electrode signal of the MUX unit 1 through the capacitor, further adjusts the intensity of electromagnetic radiation, and improves the electromagnetic interference generated by the MUX unit 1 on the whole antenna.
Further, the center of symmetry of the first gate line 21 and the second gate line 22 is a center line of the display panel, and the first capacitor 41 and the second capacitor 42 are symmetrically arranged with the center line as an axis of symmetry.
In the preparation process of the display panel, in order to ensure the performance of the panel, the MUX unit 1 and the corresponding first gate line 21 and second gate line 22 are symmetrically arranged, the symmetry axis is a central line of the display panel and is a central line extending longitudinally, so that two capacitors are arranged, the first capacitor 41 and the second capacitor 42 are also symmetrically arranged and are respectively connected to the first gate line 21 and the second gate line 22 to regulate gate signals, and the first capacitor 41 and the second capacitor 42 are also arranged by taking the central line as the symmetry axis, so that the intensity of electromagnetic radiation can be reduced after the capacitors are increased, and the performance of the display panel cannot be influenced.
Further, the constant potential is a direct current signal or GND.
In order to realize the regulation of the MUX unit gate signal current by the capacitor, a constant voltage needs to be connected to one end of the capacitor, which may be implemented by connecting a direct current signal to one end of the capacitor or directly connecting one end of the capacitor to GND.
The display panel of this embodiment includes a display area a, a bending area B, and a circuit area C, where the circuit area C and the display area a are located at two sides of the bending area B, and the circuit area C is provided with a circuit structure, including a MUX unit 1, a driving circuit, and the like. As shown in fig. 3, after the panel structure is bent, the circuit area C is located at the back of the display area a, the MUX unit is close to the whole antenna 10, and the position of the whole antenna 10 shown in the figure is a rough position, so that the electromagnetic influence of the MUX unit 1 on the whole antenna 10 in fig. 3 can be reduced by adding the capacitor structure.
Further, the first pin 31, the second pin 32, the third pin 51 and the fourth pin 52 are located on the flip-chip film 6.
In this embodiment, a schematic structural diagram of a product is provided, as shown in fig. 1, the product is COF (chip on FPC), wherein a gate signal of the MUX unit 1 is connected to the first pin 31 and the second pin 32, the first pin 31 and the second pin 32 are located on a flip-chip film, an additionally provided capacitor is connected to the third pin 51 and the fourth pin 52 on the flip-chip film through wires, one end of the capacitor is connected to the gate of the MUX unit 1, and the other end of the capacitor is connected to GND or other direct current signals, so as to realize adjustment of a MUX gate signal current, and reduce the effect of the MUX unit 1 on the interference of the whole antenna.
Further, the semiconductor device further comprises an IC8, two fifth pins 9 are symmetrically arranged on the IC8, and the two fifth pins 9 are respectively connected to the first grid line 21 and the second grid line 22.
In this embodiment, as shown in fig. 2, a schematic structural diagram of another product is provided, and the product is a COP (chip on PI) product, in which an IC circuit is disposed in a circuit area, the MUX unit 1 is connected to the IC8, in this embodiment, a pin on the IC8 for connection to a gate of the MUX unit 1 is defined as a fifth pin, a gate signal of the MUX unit 1 is connected to a panel circuit through the fifth pin by the IC, two fifth pins 9 are also symmetrically disposed, and a symmetry axis is the same as the symmetry axis, and is a center line of the display panel.
Further, the first pin 31, the second pin 32, the third pin 51 and the fourth pin 52 are located on a flexible circuit board.
In this embodiment, the pin led out by the gate signal of the MUX unit 1 is located at the position of the FOP flexible circuit board shown in fig. 2, the added capacitor is connected to the third pin 51 and the fourth pin 52 on the FOP flexible circuit board through wires, one end of the capacitor is connected to the gate of the MUX unit 1, and the other end of the capacitor is connected to GND or other direct current signals, so as to realize adjustment of the current of the gate signal of the MUX, and reduce the interference of the MUX unit 1 to the whole antenna.
Further, the first pin 31 and the second pin 32 are defined identically, and the third pin 51 and the fourth pin 52 are defined identically.
The circuit structure in this embodiment is a symmetrical structure, and the symmetry axis is the center line of the display panel, so the first pin 31 and the second pin 32 are both pins connected with the gate of the MUX unit 1, and the definition of the two pins is the same, and both pins output the gate control signal; meanwhile, the third pin 51 and the fourth pin 52 are both connected to one end of the capacitor, so as to realize the adjustment of the signal current of the gate electrode of the MUX unit 1, and the definition of the third pin and the fourth pin is the same, and can be both connected with GND or other direct current signals.
Further, the first capacitor or the second capacitor is a first metal layer 12 and a second metal layer 13 which are stacked, a first inorganic layer 14 is arranged between the first metal layer 12 and the second metal layer 13,
The display panel comprises a substrate 11, and the first capacitor and the second capacitor structure are arranged above the substrate 11.
In the above embodiment, the gate signal of the MUX unit 1 is adjusted by adding the setting capacitor, so that the interference of the MUX unit 1 to the whole antenna is further reduced, wherein the specific size of the capacitor structure needs to be determined according to the specific situation of the display panel, for example, the size of the MUX unit 1, the overlapping area between the MUX unit 1 and the whole antenna, the setting position of the whole antenna, and the like. The capacitor structure that increases the setting in this embodiment is realized through two metal layers that the lamination set up, sets up inorganic layer between two metal layers and separates, and this capacitor structure's metal layer can set up according to actual panel condition, for example directly sets up on the base plate, or other positions, and arbitrary idle position all can consider setting up the capacitor structure that increases, causes structural big change to original display panel as far as possible, guarantees other preparation work and the display effect etc. of display panel. Referring specifically to fig. 4, the first capacitor and the second capacitor are arranged in the same manner, so that fig. 4 only shows one arrangement, and is not limited to any capacitor structure.
Further, a second inorganic layer 15 is disposed on the second metal layer 13, a first through hole penetrating through the second inorganic layer 15, the second metal layer 13 and the first inorganic layer 14 is disposed on the second inorganic layer 15, and a first metal wire 17 is disposed on the second inorganic layer 15, and the first metal wire 17 is connected to the first metal layer 12 through the first through hole;
The second inorganic layer 15 is provided with a second through hole, the second inorganic layer 15 is provided with a second metal wire 16, and the second metal wire 6 is connected to the second metal layer 13 through the first through hole.
The two ends of the first capacitor and the second capacitor are connected to the grid line or other pins of the MUX unit through metal wires, so that two metal wires are arranged on the second inorganic layer, the first metal wire and the second metal wire are connected to the grid line or other pins of the MUX unit through the first metal wire and the second metal wire, inorganic materials are arranged at the position, where the through holes are arranged, of the second metal layer, the second metal layer is isolated from the first metal wire through the inorganic materials, the first metal wire and the second metal wire are both positioned on the second inorganic layer and are not contacted, and then the first metal wire and the second metal wire can be covered with organic materials for packaging.
The embodiment also provides a display device, which comprises the display panel.
The invention is not particularly limited in application to display devices, and can be any product or component with display function, such as televisions, notebook computers, tablet computers, wearable display equipment, mobile phones, vehicle-mounted display, navigation, electronic books, digital photo frames, advertisement lamp boxes and the like.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the application. Terms such as "disposed" or the like as used herein may refer to either one element being directly attached to another element or one element being attached to another element through an intermediate member. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment. The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
Claims (9)
1. The display panel is characterized by comprising a MUX unit, wherein the MUX unit comprises a first grid line and a second grid line which are symmetrically arranged, and the grid electrode of the MUX unit is respectively connected to a first pin and a second pin through the first grid line and the second grid line;
The first capacitor and the second capacitor are used for adjusting the current of the grid signals of the MUX unit, and the third pin and the fourth pin are constant potential pins;
The center of symmetry of the first grid line and the second grid line is the central line of the display panel, and the first capacitor and the second capacitor are symmetrically arranged by taking the central line as a symmetry axis.
2. The display panel according to claim 1, wherein the constant potential is a direct current signal or GND.
3. The display panel of claim 1 or 2, wherein the first, second, third and fourth pins are located on a flip chip film.
4. The display panel according to claim 1 or 2, further comprising an IC, wherein two fifth pins are symmetrically disposed on the IC, and the two fifth pins are connected to the first gate line and the second gate line, respectively.
5. The display panel of claim 4, wherein the first pin, the second pin, the third pin, and the fourth pin are located on a flexible circuit board.
6. The display panel according to claim 1 or 2, wherein the first pin and the second pin are defined identically, and the third pin and the fourth pin are defined identically.
7. The display panel according to claim 1 or 2, wherein the first capacitor or the second capacitor is a first metal layer and a second metal layer which are stacked, a first inorganic layer is provided between the first metal layer and the second metal layer,
The display panel comprises a substrate, and the first capacitor or the second capacitor structure is arranged above the substrate.
8. The display panel according to claim 7, wherein a second inorganic layer is provided on the second metal layer, the second inorganic layer, the second metal layer, and the first inorganic layer are provided with first through holes therethrough, and a first metal line is provided on the second inorganic layer, the first metal line being connected to the first metal layer through the first through holes;
The second inorganic layer is provided with a second through hole, the second inorganic layer is provided with a second metal wire, and the second metal wire is connected to the second metal layer through the first through hole.
9. A display device comprising the display panel of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110313872.3A CN113066844B (en) | 2021-03-24 | 2021-03-24 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110313872.3A CN113066844B (en) | 2021-03-24 | 2021-03-24 | Display panel and display device |
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| Publication Number | Publication Date |
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| CN113066844A CN113066844A (en) | 2021-07-02 |
| CN113066844B true CN113066844B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110313872.3A Active CN113066844B (en) | 2021-03-24 | 2021-03-24 | Display panel and display device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1589461A (en) * | 2002-10-11 | 2005-03-02 | 三菱电机株式会社 | Display device |
| CN102165577A (en) * | 2008-08-01 | 2011-08-24 | 剑桥显示技术有限公司 | Active matrix OLED display and driver therefor |
| CN109087608A (en) * | 2017-06-14 | 2018-12-25 | 乐金显示有限公司 | Gating drive circuit and the display device for utilizing the gating drive circuit |
| CN109347462A (en) * | 2018-11-30 | 2019-02-15 | 惠州华芯半导体有限公司 | RF switch chip |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4936340B2 (en) * | 2006-10-25 | 2012-05-23 | パイオニア株式会社 | Display device and driving method of display device |
| US9338036B2 (en) * | 2012-01-30 | 2016-05-10 | Nvidia Corporation | Data-driven charge-pump transmitter for differential signaling |
-
2021
- 2021-03-24 CN CN202110313872.3A patent/CN113066844B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1589461A (en) * | 2002-10-11 | 2005-03-02 | 三菱电机株式会社 | Display device |
| CN102165577A (en) * | 2008-08-01 | 2011-08-24 | 剑桥显示技术有限公司 | Active matrix OLED display and driver therefor |
| CN109087608A (en) * | 2017-06-14 | 2018-12-25 | 乐金显示有限公司 | Gating drive circuit and the display device for utilizing the gating drive circuit |
| CN109347462A (en) * | 2018-11-30 | 2019-02-15 | 惠州华芯半导体有限公司 | RF switch chip |
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| CN113066844A (en) | 2021-07-02 |
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