CN107768416B - Display screen, preparation method thereof and display device - Google Patents
Display screen, preparation method thereof and display device Download PDFInfo
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- CN107768416B CN107768416B CN201711049048.1A CN201711049048A CN107768416B CN 107768416 B CN107768416 B CN 107768416B CN 201711049048 A CN201711049048 A CN 201711049048A CN 107768416 B CN107768416 B CN 107768416B
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- 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
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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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
- 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]
- G09G3/3225—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] using an active matrix
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
The application discloses display screen and preparation method, display device thereof, this display screen includes: a first signal layer and a second signal layer, wherein: the first signal layer comprises a first signal line, the first signal line is connected with a pixel circuit in the display screen, the first signal line is used for providing a first driving signal, and the first driving signal is used for driving the pixel circuit; the second signal layer comprises a second signal line, the second signal line is used for providing a second driving signal, and the second driving signal is a signal without abnormity; the second signal layer is connected to the first signal layer at a position where the first drive signal is deformed so that the second signal line is connected to the pixel circuit at the position, and the second drive signal drives the pixel circuit at the position. Since the second driving signal is a signal without abnormality, the pixel circuit is driven by the second driving signal, and compared with the prior art, the normal driving of the pixel circuit can be ensured, and the problem that the display device cannot normally display is avoided.
Description
Technical Field
The application relates to the technical field of display, in particular to a display screen, a manufacturing method of the display screen and a display device.
Background
An organic light emitting display device is a display device using organic light emitting diodes as light emitting devices, has the characteristics of high contrast, thin thickness, wide viewing angle, high response speed, low power consumption and the like, and is increasingly applied to various display and illumination fields.
In general, an organic light emitting display device may include a driver and a plurality of pixels, each of which may correspond to one pixel circuit, wherein the driver may generate a driving signal, which may be transmitted in the plurality of pixel circuits, and drive each of the pixel circuits such that light emitting diodes in the pixel circuits emit light, and the entire display device emits light.
However, in practical applications, when the driving signal is transmitted in the pixel circuit, the driving signal may be inevitably deformed due to the effect of the voltage drop of the resistance in the pixel circuit, for example, the amplitude of the driving signal is reduced, the waveform is changed, and the like. Thus, when the driving signal changes, the normal driving of the pixel circuit by the driving signal is affected, and the normal display of the display device is affected.
Disclosure of Invention
The embodiment of the application provides a display screen, a preparation method thereof and a display device, and is used for solving the problem that the display device cannot normally display due to deformation of a driving signal in the conventional organic light-emitting display device.
The embodiment of the application provides a display screen, includes: a first signal layer and a second signal layer, wherein:
the first signal layer comprises a first signal line, the first signal line is connected with a pixel circuit in the display screen, the first signal line is used for providing a first driving signal, and the first driving signal is used for driving the pixel circuit;
the second signal layer comprises a second signal line, the second signal line is used for providing a second driving signal, and the second driving signal is a signal without abnormity;
the second signal layer is connected to the first signal layer at a position where the first drive signal is deformed so that the second signal line is connected to the pixel circuit at the position, and the second drive signal drives the pixel circuit at the position.
Preferably, the first signal line is in an unconnected state with the pixel circuit at the position, and the second drive signal drives the pixel circuit at the position in place of the first drive signal.
Preferably, the first signal line is in a connected state with the pixel circuit at the position, and the first drive signal and the second drive signal drive the pixel circuit at the position in common.
Preferably, the first driving signal is one of a scan signal, a light emission control signal, a gate signal and a clock signal;
the second drive signal is the same as the first drive signal.
Preferably, the display screen further comprises: base plate, insulating layer and emitting diode, wherein:
the second signal layer is formed on the substrate; the insulating layer covers the second signal layer; the first signal layer is formed on the insulating layer; the light emitting diode is formed on the first signal layer; or the like, or, alternatively,
the first signal layer is formed on the substrate; the insulating layer covers the first signal layer; the second signal layer is formed on the insulating layer; the light emitting diode is formed on the second signal layer.
Preferably, the light emitting diode is an OLED.
Preferably, the display screen further comprises: an encapsulation layer, wherein:
the packaging layer covers the light emitting diode, and is used for packaging the display screen.
The embodiment of the application provides a preparation method of a display screen, which comprises the following steps:
providing a second signal layer;
etching the second signal layer to form a second signal line, wherein the second signal line is used for providing a second driving signal, and the second driving signal is a signal without abnormality;
evaporating an insulating layer on the second signal layer;
forming a first signal layer on the insulating layer;
etching the first signal layer to form a first signal line, wherein the first signal line is connected with a pixel circuit in the display screen and is used for providing a first driving signal, and the first driving signal is used for driving the pixel circuit;
and cutting and repairing the deformed position of the first driving signal in the first signal layer to ensure that the first signal layer is connected with the second signal layer at the position, the second signal line is connected with the pixel circuit at the position, and the second driving signal drives the pixel circuit at the position.
The embodiment of the application further provides a preparation method of the display screen, which comprises the following steps:
providing a first signal layer;
etching the first signal layer to form a first signal line, wherein the first signal line is connected with a pixel circuit in the display screen and is used for providing a first driving signal, and the first driving signal is used for driving the pixel circuit;
evaporating an insulating layer on the first signal layer;
forming a second signal layer on the insulating layer;
etching the second signal layer to form a second signal line, wherein the second signal line is used for providing a second driving signal, and the second driving signal is a signal without abnormality;
and cutting and repairing the first signal layer at the position where the first driving signal is deformed, so that the first signal layer is connected with the second signal layer at the position, the second signal line is connected with the pixel circuit at the position, and the second driving signal drives the pixel circuit at the position.
The embodiment of the application also provides a display device, which comprises the display screen.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
in the display screen that this application embodiment provided, include: a first signal layer and a second signal layer, wherein: the first signal layer comprises a first signal line, the first signal line is connected with a pixel circuit in the display screen, the first signal line is used for providing a first driving signal, and the first driving signal is used for driving the pixel circuit; the second signal layer comprises a second signal line, the second signal line is used for providing a second driving signal, and the second driving signal is a signal without abnormity; the second signal layer is connected to the first signal layer at a position where the first drive signal is deformed so that the second signal line is connected to the pixel circuit at the position, and the second drive signal drives the pixel circuit at the position. Therefore, a signal layer is added in the display screen, the signal layer can transmit a drive signal which is not abnormal, when the drive signal of the pixel circuit is deformed, the pixel circuit can be driven by the drive signal which is not abnormal, and compared with the prior art, the normal drive of the pixel circuit can be effectively ensured, and the problem that the display device cannot normally display can be further avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a structural side view of a display screen according to an embodiment of the present disclosure;
FIG. 2 is a side view of another display screen according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart of a method for manufacturing a display screen according to an embodiment of the present disclosure;
fig. 4 is a schematic flow chart of another display screen manufacturing method provided in an embodiment of the present application.
Detailed Description
The technical solutions of the present application will be described clearly and completely below with reference to the specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the 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 application.
It should be noted that, in the display panel provided in this embodiment of the present application, the first driving signal may be a signal for driving a pixel circuit in the display panel, and specifically may be one of a scan signal, a light-emitting control signal, a gate signal, and a clock signal, where if the number of the scan signals, the number of the gate signals, or the number of the clock signals is multiple, the first driving signal may be one of multiple signals, and this embodiment of the present application is not particularly limited. In addition, the specific structure of the pixel circuit is not limited in the embodiments of the present application.
The second driving signal may be a driving signal which is newly added on the basis of the first driving signal and has no abnormality, and may be regarded as an in-phase interference signal of the first driving signal, and may be specifically the same as the first driving signal.
In the embodiment of the present application, the first driving signal may be one of the scanning signals in the pixel circuit, and the second driving signal is the same as the first driving signal.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Example 1
Fig. 1 is a structural side view of a display screen according to an embodiment of the present disclosure. The display screen is as follows.
The display screen shown in fig. 1 may include a first signal layer 11 and a second signal layer 12, where:
a first signal line (not shown in fig. 1) may be included in the first signal layer 11, the first signal line may be connected to a pixel circuit in the display panel, the first signal line may be used to provide a first driving signal, and the first driving signal may be transmitted in the first signal line and used to drive the pixel circuit, and in this embodiment, there may be a distortion in the first driving signal;
the second signal layer 12 may include a second signal line (not shown in fig. 1), which may be used to provide a second driving signal, which may be a signal without abnormality, that is, the second driving signal may be regarded as a signal without deformation compared to the first driving signal;
the second signal layer 12 may be connected to the first signal layer 11 at a position where the first driving signal is deformed so that the second signal line may be connected to the pixel circuit at the position, and the second driving signal may drive the pixel circuit at the position.
In this embodiment, the display panel may include a plurality of pixel circuits, and the plurality of pixel circuits may be arranged in the display panel in an array.
The first signal layer may be a TFT layer including a thin film transistor TFT in the pixel circuit, and the number of the first signal lines included in the first signal layer may be one or more, and may be specifically determined according to the number of driving signals in the pixel circuit included in the display screen, where one of the first signal lines may be used to provide one of the first driving signals. For example, if five driving signals are included in the pixel circuit, the number of the first signal lines may be five, and each of the first signal lines may provide one of the first driving signals. In the embodiments of the present application, the number of the first signal lines is taken as one example for description.
For one of the first signal lines, the first driving signal provided by the first signal line may be sequentially transmitted from left to right in the plurality of pixel circuits to drive the plurality of pixel circuits.
The second signal layer may be a signal layer newly added to the display screen provided in the embodiment of the present application, and the number of the second signal lines included in the second signal layer may be the same as the number of the first signal lines, and each of the second signal lines may provide one of the second driving signals. In the embodiment of the present application, the second driving signal provided by one of the second signal lines may be the same as the first driving signal.
In the embodiment of the present application, the second signal line may be connected to a driver for outputting a driving signal, and the second driving signal provided by the second signal line is not affected by a voltage drop of a resistor in the pixel circuit when the second driving signal is transmitted in the second signal layer, so that the second driving signal may be regarded as a signal in which no abnormality occurs, that is, the second driving signal is a signal in which no distortion occurs.
The second signal line may be a metal or a transparent conductive material, wherein the transparent conductive material includes but is not limited to: ITO (chinese name: Indium Tin Oxide, english name: Indium Tin Oxide), AgNW (nano silver wire), graphene, and the like.
In the prior art, when the first driving signal is transmitted in the plurality of pixel circuits, there is inevitably a certain distortion (for example, the amplitude of the first driving signal becomes small, the waveform changes from a regular rectangular waveform to an irregular waveform, etc.) due to the influence of the voltage drop of the resistance in the pixel circuits. In the embodiment of the present application, compared to the prior art, the newly added second signal layer 12 may be connected to the first signal layer 11 at a position where the first driving signal is deformed, so that the second signal line in the second signal layer 12 may be connected to the pixel circuit at the position, and the second driving signal provided by the second signal line may drive the pixel circuit. Since the second driving signal line is a signal which is not deformed, normal driving of the pixel circuit at the position can be ensured.
In the embodiment of the present invention, for the first signal line, at a position where the first driving signal is deformed, the first signal line may be in a non-connection state with the pixel circuit at the position, and thus, the signal line connected to the pixel circuit at the position is only the second signal line, so that the second driving signal may drive the pixel circuit at the position instead of the first driving signal, and normal driving of the pixel circuit is ensured.
In addition, at a position where the first driving signal is deformed, the first signal line may be in a connection state with the pixel circuit at the position, so that the signal lines connected to the pixel circuit at the position are the first signal line and the second signal line, so that the pixel circuit at the position may be driven by the first driving signal and the second driving signal together, and normal driving of the pixel circuit may be ensured compared to the prior art.
As a preferable mode, the first signal line may be in a non-connected state with the pixel circuit at a position where the first drive signal is deformed.
It should be noted that, after the second driving signal drives the pixel circuit at the position, the second driving signal may be sequentially transmitted in other pixel circuits from left to right at the position to drive other pixel circuits, at this time, the second driving signal may be regarded as the first driving signal, and the first driving signal inevitably has a deformation problem in the transmission process, so that, at another position where the first driving signal is deformed, the second signal layer 12 may be connected to the first signal layer 11 at the position, so that the second signal line is connected to the pixel circuit at the other position, the second driving signal provided by the second signal line drives the pixel circuit at the other position, … …, and so on, and finally the driving signal transmitted in the pixel circuit of the display screen has no deformation, the normal driving of the pixel circuit in the display screen is effectively ensured, and the normal display of the display device is further ensured.
In this embodiment of the application, the display screen may further include: the substrate 13, the insulating layer 14, and the light emitting diode 15, wherein the structural relationship between the substrate 13, the insulating layer 14, and the light emitting diode 15 and the first signal layer 11 and the second signal layer 12 may be:
the second signal layer 12 is formed on the substrate 13; the insulating layer 14 covers the second signal layer 12, and the first signal layer 11 is formed on the insulating layer 14; the light emitting diode 15 is formed on the first signal layer 11.
The substrate 13 may be a glass substrate, the insulating layer 14 may be made of a silicon nitride material or a silicon oxide material, and the light emitting diode included in the light emitting diode 15 may be an OLED.
The display screen may further include: an encapsulation layer 16, wherein: an encapsulation layer 16 may cover the light emitting diodes 15 and serve to encapsulate the display.
In another embodiment provided in the present application, the substrate 13, the insulating layer 14, and the light emitting diode 15 may be in a structural relationship with the first signal layer 11 and the second signal layer 12 as follows:
the first signal layer 11 is formed on the substrate 13; the insulating layer 14 covers the first signal layer 11, and the second signal layer 12 is formed on the insulating layer 14; the light emitting diode 15 is formed on the second signal layer 12. As shown in fig. 2.
Fig. 2 is a structural side view of another display screen provided in an embodiment of the present application. Compared with fig. 1, in fig. 2, positions of the first signal layer 11 and the second signal layer 12 are interchanged, and otherwise, the display panel shown in fig. 2 can also effectively ensure normal driving of the pixel circuit, and specific implementation manners can be referred to the above description of the embodiment shown in fig. 1, and will not be described repeatedly here.
The display screen provided by the embodiment of the application comprises a first signal layer and a second signal layer, wherein: the first signal layer comprises a first signal line, the first signal line is connected with a pixel circuit in the display screen, the first signal line is used for providing a first driving signal, and the first driving signal is used for driving the pixel circuit; the second signal layer comprises a second signal line, the second signal line is used for providing a second driving signal, and the second driving signal is a signal without abnormity; the second signal layer is connected to the first signal layer at a position where the first drive signal is deformed so that the second signal line is connected to the pixel circuit at the position, and the second drive signal drives the pixel circuit at the position.
Therefore, a signal layer is added in the display screen, the signal layer can transmit a drive signal which is not abnormal, when the drive signal of the pixel circuit is deformed, the pixel circuit can be driven by the drive signal which is not abnormal, and compared with the prior art, the normal drive of the pixel circuit can be effectively ensured, and the problem that the display device cannot normally display can be further avoided.
In addition, for the part of the display screen where the second signal layer is not connected with the first signal layer, a coupling capacitor may be formed between the first driving signal transmitted by the first signal layer and the second driving signal transmitted by the second signal layer, so that interference between the first driving signal and the second driving signal may be eliminated.
According to the display screen provided by the embodiment of the application, because the newly added second signal layer does not bring adverse effects to the display of the pixel circuit, the design of the display screen with high resolution and large size can be realized.
Example 2
Fig. 3 is a schematic flowchart of a manufacturing method of a display panel according to an embodiment of the present disclosure, and the manufacturing method shown in fig. 3 may be used to manufacture the display panel shown in fig. 1. The method is as follows.
Step 301: a second signal layer is provided.
Step 302: and etching the second signal layer to form a second signal line.
The second signal line may be configured to provide a second driving signal, and the second driving signal may be a signal in which no abnormality occurs.
Step 303: and evaporating an insulating layer on the second signal layer.
Wherein the insulating layer may be used to insulate the second signal layer.
Step 304: a first signal layer is formed on the insulating layer.
Step 305: and etching the first signal layer to form a first signal line.
The first signal line may be connected to a pixel circuit in the display screen, and the first signal line is configured to provide a first driving signal for driving the pixel circuit.
Step 306: and cutting and repairing the deformed position of the first driving signal in the first signal layer to ensure that the first signal layer is connected with the second signal layer at the position, the second signal line is connected with the pixel circuit at the position, and the second driving signal drives the pixel circuit at the position.
In step 306, the position of the first driving signal deformed during transmission in the first signal layer can be determined in a simulation manner, and after the position is determined, the cutting repair can be performed on the first signal layer at the position by using the existing Array repair/cutting device.
After the Array repair/cut device is used to cut and repair the first signal layer, the second signal layer at the position may be connected to the first signal layer, so that the second signal line in the second signal layer may be connected to the pixel circuit at the position, and the second drive signal provided by the second signal line may drive the pixel circuit at the position.
When the position of the first driving signal in the first signal layer where the first driving signal is deformed is determined in a simulation manner, a plurality of positions may be determined from left to right. For the first position, the simulation may be performed on the display screen without adding the second signal layer; for the second deformed position, the second signal layer may be added, and the display screen at the first position is repaired by the second signal layer through simulation, that is, simulation is performed on the basis that the pixel circuit at the first position is driven by the second driving signal, … …, and so on, and a plurality of positions in the first signal layer that need to be cut and repaired may be determined and obtained through simulation.
After the positions are determined, the positions can be cut and repaired by using the existing Array repairing/cutting equipment, so that the first signal layers at the positions are connected with the second signal layers, the second signal lines are connected with the pixel circuits at the positions, and the second driving signals drive the pixel circuits at the positions, so that the driving signals transmitted in the pixel circuits of the display screen are undeformed signals, the normal driving of the pixel circuits in the display screen is ensured, and the normal display of the display device is ensured.
After the first signal layer is cut and repaired by the method described above, a light emitting diode, which may be an OLED, may be deposited on the first signal layer.
After the light emitting diode is evaporated, an encapsulation layer may be covered on the light emitting diode, and the display screen may be encapsulated by using the encapsulation layer.
When the display screen is manufactured, two signal layers, namely a first signal layer and a second signal layer, are manufactured, wherein a first signal line in the first signal layer and a second signal line in the second signal layer can provide the same driving signal, the first driving signal provided by the first signal line can be connected with a pixel circuit in the display screen and used for driving the pixel circuit, a second driving signal provided by the second signal line is a signal without abnormity, and the two signal layers are manufactured in sequence of the second signal layer and the first signal layer; after two signal layers are manufactured, the deformed position of the first driving signal in the first signal layer can be cut and repaired, so that the second signal line in the second signal layer is connected with the pixel circuit at the position, and the second driving signal drives the pixel circuit at the position. The second driving signal is a signal without abnormality, so that normal driving of the pixel circuit can be effectively ensured, and the problem that the display device cannot normally display due to deformation of the driving signal is avoided.
Example 3
Fig. 4 is a schematic flowchart of a manufacturing method of a display screen according to an embodiment of the present disclosure, and the manufacturing method shown in fig. 4 may be used to manufacture the display screen shown in fig. 2. The method is as follows.
Step 401: a first signal layer is provided.
Step 402: and etching the first signal layer to form a first signal line.
The first signal line may be connected to a pixel circuit in the display screen, and the first signal line is configured to provide a first driving signal for driving the pixel circuit.
Step 403: and evaporating an insulating layer on the second signal layer.
Wherein the insulating layer may be used to insulate the second signal layer.
Step 404: a second signal layer is formed on the insulating layer.
Step 405: and etching the second signal layer to form a second signal line.
The second signal line is used for providing a second driving signal, and the second driving signal is a signal without abnormality.
Step 406: and cutting and repairing the deformed position of the first driving signal in the first signal layer to ensure that the first signal layer is connected with the second signal layer at the position, the second signal line is connected with the pixel circuit at the position, and the second driving signal drives the pixel circuit at the position.
The implementation of step 406 may be the same as the implementation of step 306 described in fig. 3, and the description is not repeated here.
After the first signal layer is cut and repaired, a light emitting diode may be vapor-deposited on the second signal layer, wherein the light emitting diode may be an OLED.
After the light emitting diode is evaporated, an encapsulation layer may be covered on the light emitting diode, and the display screen may be encapsulated by using the encapsulation layer.
When the display screen is manufactured, two signal layers, namely a first signal layer and a second signal layer, are manufactured, wherein a first signal line in the first signal layer and a second signal line in the second signal layer can provide the same driving signal, the first driving signal provided by the first signal line can be connected with a pixel circuit in the display screen and used for driving the pixel circuit, a second driving signal provided by the second signal line is a signal without abnormity, and the two signal layers are manufactured in sequence of the first signal layer and the second signal layer; after two signal layers are manufactured, the deformed position of the first driving signal in the first signal layer can be cut and repaired, so that the second signal line in the second signal layer is connected with the pixel circuit at the position, and the second driving signal drives the pixel circuit at the position. The second driving signal is a signal without abnormality, so that normal driving of the pixel circuit can be effectively ensured, and the problem that the display device cannot normally display due to deformation of the driving signal is avoided.
It should be apparent to those skilled in the art that while the preferred embodiments of the present application have been described, additional variations and modifications to these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A display screen, comprising: a first signal layer and a second signal layer, wherein:
the first signal layer comprises a first signal line, the first signal line is connected with a pixel circuit in the display screen, the first signal line is used for providing a first driving signal, and the first driving signal is used for driving the pixel circuit;
the second signal layer comprises a second signal line, the second signal line is used for providing a second driving signal, and the second driving signal is a signal without abnormity;
the second signal layer is connected to the first signal layer at a position where the first drive signal is deformed so that the second signal line is connected to the pixel circuit at the position, and the second drive signal drives the pixel circuit at the position.
2. The display screen of claim 1,
the first signal line is in an unconnected state with the pixel circuit at the position, and the second drive signal drives the pixel circuit at the position in place of the first drive signal.
3. The display screen of claim 1,
the first signal line is in a connected state with the pixel circuit at the position, and the first drive signal and the second drive signal drive the pixel circuit at the position together.
4. A display screen according to claim 2 or 3,
the first driving signal is one of a scanning signal, a light-emitting control signal, a gate signal and a clock signal;
the second drive signal is the same as the first drive signal.
5. The display screen of claim 1, wherein the display screen further comprises: base plate, insulating layer and emitting diode, wherein:
the second signal layer is formed on the substrate; the insulating layer covers the second signal layer; the first signal layer is formed on the insulating layer; the light emitting diode is formed on the first signal layer; or the like, or, alternatively,
the first signal layer is formed on the substrate; the insulating layer covers the first signal layer; the second signal layer is formed on the insulating layer; the light emitting diode is formed on the second signal layer.
6. The display screen of claim 5,
the light emitting diode is an OLED.
7. The display screen of claim 6, wherein the display screen further comprises: an encapsulation layer, wherein:
the packaging layer covers the light emitting diode, and is used for packaging the display screen.
8. A preparation method of a display screen is characterized by comprising the following steps:
providing a second signal layer;
etching the second signal layer to form a second signal line, wherein the second signal line is used for providing a second driving signal, and the second driving signal is a signal without abnormality;
evaporating an insulating layer on the second signal layer;
forming a first signal layer on the insulating layer;
etching the first signal layer to form a first signal line, wherein the first signal line is connected with a pixel circuit in the display screen and is used for providing a first driving signal, and the first driving signal is used for driving the pixel circuit;
and cutting and repairing the deformed position of the first driving signal in the first signal layer to ensure that the first signal layer is connected with the second signal layer at the position, the second signal line is connected with the pixel circuit at the position, and the second driving signal drives the pixel circuit at the position.
9. A preparation method of a display screen is characterized by comprising the following steps:
providing a first signal layer;
etching the first signal layer to form a first signal line, wherein the first signal line is connected with a pixel circuit in the display screen and is used for providing a first driving signal, and the first driving signal is used for driving the pixel circuit;
evaporating an insulating layer on the first signal layer;
forming a second signal layer on the insulating layer;
etching the second signal layer to form a second signal line, wherein the second signal line is used for providing a second driving signal, and the second driving signal is a signal without abnormality;
and cutting and repairing the first signal layer at the position where the first driving signal is deformed, so that the first signal layer is connected with the second signal layer at the position, the second signal line is connected with the pixel circuit at the position, and the second driving signal drives the pixel circuit at the position.
10. A display device, comprising: a display screen according to any one of claims 1 to 7.
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| US6014191A (en) * | 1996-07-16 | 2000-01-11 | Samsung Electronics Co., Ltd. | Liquid crystal display having repair lines that cross data lines twice and cross gate lines in the active area and related repairing methods |
| KR20080000426A (en) * | 2006-06-27 | 2008-01-02 | 엘지.필립스 엘시디 주식회사 | Organic electroluminescent display device and method of fabricating the same |
| CN101101917A (en) * | 2007-08-13 | 2008-01-09 | 友达光电股份有限公司 | Active array base board for plane display and its repair method |
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| KR100884450B1 (en) * | 2007-11-08 | 2009-02-19 | 삼성모바일디스플레이주식회사 | Organic light emitting display device |
| US9041202B2 (en) * | 2008-05-16 | 2015-05-26 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method of the same |
| KR20140007688A (en) * | 2012-07-10 | 2014-01-20 | 삼성디스플레이 주식회사 | Method for repairing short defect, the display apparatus manufactured by the repairing method and the organic light emitting display apparatus by the repairing method |
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| US6014191A (en) * | 1996-07-16 | 2000-01-11 | Samsung Electronics Co., Ltd. | Liquid crystal display having repair lines that cross data lines twice and cross gate lines in the active area and related repairing methods |
| KR20080000426A (en) * | 2006-06-27 | 2008-01-02 | 엘지.필립스 엘시디 주식회사 | Organic electroluminescent display device and method of fabricating the same |
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