CN114093255B - Display screen, electronic device and method for removing static electricity of display screen - Google Patents
Display screen, electronic device and method for removing static electricity of display screen Download PDFInfo
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- CN114093255B CN114093255B CN202111250242.2A CN202111250242A CN114093255B CN 114093255 B CN114093255 B CN 114093255B CN 202111250242 A CN202111250242 A CN 202111250242A CN 114093255 B CN114093255 B CN 114093255B
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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
- G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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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
- G09F9/33—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 being semiconductor devices, e.g. diodes
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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]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
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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
- H10K59/126—Shielding, e.g. light-blocking means over the TFTs
Abstract
The application discloses display screen, electron device and get rid of method of display screen static, this display screen includes: a screen body; the basal layer and the supporting layer are arranged on the same side of the screen body; and the connecting terminal is electrically connected with the supporting layer and is used for connecting a power supply so that the power supply applies voltage to the supporting layer, and a coupling capacitor is formed between the supporting layer and the substrate layer to reduce static charges focused on the substrate layer. The display screen that this application provided can reduce the static of gathering on the stratum basale in the display screen, guarantees the display effect of display screen.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display screen, an electronic device, and a method for removing static electricity from the display screen.
Background
With the continuous development of display technology, flexible display screens gradually become a development trend of future mobile electronic products. The flexible display screen can obtain great display area under the expansion state to promote the effect of watching the shadow, under accomodating the state, can obtain less volume again simultaneously, the user of being convenient for carries.
However, in the use process, the display screen can generate the phenomena of greenness and uneven display brightness during display, thereby influencing the use experience of users.
Disclosure of Invention
In view of this, the present application provides a display screen, an electronic device, and a method for removing static electricity of the display screen, which can reduce static electricity accumulated on a substrate layer in the display screen, and ensure a display effect of the display screen.
A first aspect of embodiments of the present application provides a display screen, including: a screen body; the base layer and the supporting layer are arranged on the same side of the screen body; and the connecting terminal is electrically connected with the supporting layer and is used for connecting a power supply so that the power supply applies voltage to the supporting layer, and a coupling capacitance is formed between the supporting layer and the substrate layer to reduce static charges focused on the substrate layer.
Wherein, the display screen still includes: a switching circuit connected in series between the connection terminal and the support layer; and the control circuit is connected with the switching circuit and used for controlling the on and off of the switching circuit.
Wherein, the display screen still includes: and the charge detector is connected with the control circuit and is used for detecting the charge quantity on the basal layer or the supporting layer, wherein the control circuit controls the switch circuit to be conducted in response to the charge detector detecting that the charge quantity on the basal layer or the supporting layer reaches a charge quantity threshold value.
Wherein the control circuit controls the switch circuit to be conducted according to a preset time interval; or the control circuit controls the switch circuit to be conducted according to the received operation instruction.
Wherein the switching circuit includes: the anode of the diode is electrically connected with the connecting terminal and is used for connecting the power supply, and the cathode of the diode is electrically connected with the supporting layer; and the switching element is connected in series with the diode and is electrically connected with the control circuit so as to be turned on and off under the control of the control circuit.
Wherein, the display screen still includes: and a battery electrically connected to the connection terminal for applying a voltage to the support layer.
The support layer is arranged on one side of the basal layer, which is away from the screen body; the base layer is made of polyimide, and/or the supporting layer is made of steel sheet.
The display screen comprises a display screen body, a substrate layer, a supporting layer and a supporting layer, wherein the display screen body is an OLED flexible screen body, the substrate layer is an inherent polyimide film layer of the display screen, and the supporting layer is an inherent steel sheet of the display screen.
A second aspect of the embodiments of the present application provides an electronic device, including the display screen described above.
A third aspect of the embodiments of the present application provides a method for removing static electricity of a display screen, where the display screen includes a screen body, and a base layer and a supporting layer disposed on the same side of the screen body, and the method includes: a voltage is applied to the support layer such that a coupling capacitance is formed between the support layer and the base layer to reduce static charge build-up on the base layer.
The beneficial effects are that: the display screen in this application includes screen body, stratum basale, supporting layer and the connecting terminal who is connected with the supporting layer, sets up connecting terminal and power to be connected for the power can be to the supporting layer applied voltage, thereby can form coupling capacitance between supporting layer and the stratum basale, because after forming coupling capacitance, the charge on the supporting layer can influence the charge on the stratum basale, consequently under the influence of supporting layer, can reduce the static charge of gathering on the stratum basale.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic diagram of an embodiment of a display screen of the present application;
FIG. 2 is a schematic structural diagram of an embodiment of an electronic device of the present application;
FIG. 3 is a flow chart of an embodiment of a method for removing static electricity from a display screen according to the present application.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The applicant researches find that static electricity generated by friction is accumulated on a film layer in the display screen in the use process of the display screen, and after the static electricity reaches a certain amount, the stability of a TFT device in the display screen is affected, so that the display screen generates the phenomena of greenness and uneven display brightness during display. To this end, the present application provides a new display screen.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a display screen of the present application, where the display screen 1000 includes a screen body 1100, a base layer 1200, a supporting layer 1300, a connection terminal 1400, a switching circuit 1500, and a control circuit 1600.
The display 1000 of the present application may be any type of display, for example, an LCD (Liquid Crystal Display ) display, an OLED (Organic Light-Emitting Diode) display, or the like. In this embodiment, the display screen 1000 is an OLED display screen, and the screen body 1100 is an OLED flexible screen body, which specifically includes an anode layer, a cathode layer, a light emitting layer, a TFT array substrate, and other film layers.
The base layer 1200 and the support layer 1300 are disposed on the same side of the screen body 1100. The substrate layer 1200 is used for protecting the screen body 1100 from being scratched, crushed and the like in the preparation process, wherein the material of the substrate layer 1200 is generally a flexible material, and in one embodiment, the material of the substrate layer 1200 is Polyimide (PI); the supporting layer 1300 has a certain supporting strength, and is used for supporting the screen body 1100, so as to ensure the flatness of the screen body 1100, avoid the phenomenon that the brightness of the display screen 1000 is uneven when displaying images, and in one embodiment, the material of the supporting layer 1300 is a steel sheet.
In this embodiment, in order to avoid the electric charges on the supporting layer 1300 from affecting the screen 1100, the supporting layer 1300 is located on the side of the base layer 1200 away from the screen 1100. However, in other embodiments, the supporting layer 1300 may be located on the side of the substrate layer 1200 near the screen 1100, so long as the charges on the supporting layer 1300 meet a certain condition and do not affect the screen 1100.
The connection terminal 1400 is electrically connected to the support layer 1300, and is used for connecting the power supply 1700, so that the power supply 1700 applies a voltage to the support layer 1300, so that a coupling capacitance is formed between the support layer 1300 and the substrate layer 1200 to reduce static charges accumulated on the substrate layer 1200. The connection terminal 1400 is an electrical conductor, such as a metal pad, a metal wire, or a metal conductive layer.
Specifically, during the use of the display screen 1000, static charges generated by friction may accumulate on the base layer 1200, and after the static charges reach a certain amount, the static charges may damage a film layer in the screen body 1100, such as a TFT array substrate, so as to affect the display effect of the display screen 1000.
In the present embodiment, the connection terminal 1400 electrically connected to the supporting layer 1300 is connected to the power supply 1700, so that the power supply 1700 can form a coupling capacitance between the base layer 1200 and the supporting layer 1300 after applying a voltage to the supporting layer 1300, due to the characteristics of the coupling capacitance: when a positive voltage is applied to the supporting layer 1300, negative charges are induced in the base layer 1200, and when a negative voltage is applied to the supporting layer 1300, positive charges are induced in the base layer 1200, so that after a coupling capacitance is formed between the base layer 1200 and the supporting layer 1300 by applying a voltage to the supporting layer 1300 by the power supply 1700, charges on the supporting layer 1300 generate induced charges on the base layer 1200, and at this time, static charges accumulated on the base layer 1200 can be neutralized by the induced charges generated on the base layer 1200, thereby reducing static charges accumulated on the base layer 1200 and protecting the screen 1100.
In order to determine the optimal voltage applied to the supporting layer 1300 by the power supply 1700, the use condition of the display screen 1000 is first simulated in advance, the charge amount of the substrate layer 1200 generated under different bending and curling times is measured, a final charge amount is determined according to a preset rule, then the voltage is applied to the substrate layer 1200 alone, so that the charge amount of the substrate layer 1200 is the same as the final charge amount determined in the simulation process, and finally the voltage is applied to the supporting layer 1300, so as to reduce the charge amount on the substrate layer 1200. It will be appreciated that the security values referred to herein may be selected as desired, and that the security values may be different for different displays 1000.
Considering that the static charge on the base layer 1200 gradually accumulates over time, when the static charge on the base layer 1200 is small, the static charge on the base layer 1200 may not affect the screen 1100 at this time, if a voltage is always applied to the supporting layer 1300 at this time, energy is wasted, so the embodiment further connects the switching circuit 1500 in series between the supporting layer 1300 and the connection terminal 1400, and sets the switching circuit 1500 to be connected with the control circuit 1600, under the control of the control circuit 1600, the switching circuit 1500 is turned on or off, so that the control circuit 1600 can only control the switching circuit 1500 to be turned on when a certain condition is met, otherwise, the control circuit 1600 controls the switching circuit 1500 to be turned off. The control circuit 1600 may be a control circuit of the display 1000, or may be a control circuit of an electronic device using the display 1000, such as a control circuit of a mobile phone processor.
In other embodiments, the switching circuit 1500 may not be provided, and the connection terminal 1400 may be directly electrically connected to the support layer 1300, that is, the power supply 1700 may apply a voltage to the support layer 1300 all the time after the connection terminal 1400 is connected to the power supply 1700.
In an embodiment, when the amount of the electric charges on the base layer 1200 or the supporting layer 1300 reaches the electric charge threshold, the control circuit 1600 determines that the electrostatic charges accumulated on the base layer 1200 will affect the panel 1100, and the control circuit 1600 controls the switch circuit 1500 to be turned on. When the amount of the electric charge on the base layer 1200 reaches the charge amount threshold, it is indicated that the electrostatic charge on the base layer 1200 will affect the screen 1100, and the amount of the electric charge on the supporting layer 1300 can also reflect the amount of the electric charge on the base layer 1200, so when the amount of the electric charge on the supporting layer 1300 reaches the charge amount threshold, it is also indicated that the electrostatic charge on the base layer 1200 will affect the screen 1100.
Referring to fig. 1, the display screen 1000 further includes a charge detector 1800 for detecting the charge amount on the base layer 1200 or the supporting layer 1300, where the charge detector 1800 is connected to the control circuit 1600, and the control circuit 1600 controls the switch circuit 1500 to be turned on in response to the charge detector 1800 detecting that the charge amount on the base layer 1200 or the supporting layer 1300 reaches the charge amount threshold.
The charge detector 1800 may be electrically connected to the base layer 1200 or the support layer 1300 to detect the charge amount, or inductively detect the charge amount, wherein the charge detector 1800 is not electrically connected to the base layer 1200 or the support layer 1300 when the charge amount is inductively detected. In summary, the present application is not limited as to the manner in which the charge detector 1800 detects the amount of charge.
In this embodiment, when the charge detector 1800 is electrically connected to the substrate layer 1200 or the supporting layer 1300 to detect the charge amount, the supporting layer 1300 is located on the side of the substrate layer 1200 away from the screen body 1100, so that the difficulty in setting the connection between the charge detector 1800 and the supporting layer 1300 is smaller than the difficulty in setting the connection between the charge detector 1800 and the substrate layer 1200, so that the electrical connection between the charge detector 1800 and the supporting layer 1300 can be preferentially set to reduce the preparation difficulty.
Also in this embodiment, after the switch circuit 1500 is controlled to be turned on, the switch circuit 1500 may be further controlled to be turned off. The condition for controlling the switch circuit 1500 to be turned off may be that the charge detector 1800 detects that the charge amount on the substrate layer 1200 or the support layer 1300 is lower than the safe charge amount, or may be when a predetermined time (for example, 30 seconds, 1 minute, etc.) is reached, or may be a command input by a user.
In another embodiment, a sensor (not shown) may be provided, where the sensor is configured to detect the number of bending or curling of the display screen 1000, and the control circuit 1600 determines whether the amount of electric charge on the substrate layer 1200 reaches the threshold of electric charge according to the number of bending or curling of the display screen 1000, that is, the control circuit 1600 controls the switch circuit 1500 to be turned on in response to the sensor detecting that the number of bending or curling of the display screen 1000 reaches the threshold of electric charge. In the experiment for obtaining the optimal voltage, the minimum number of bending or curling of the display screen 1000, which makes the electric charge amount on the base layer 1200 reach the electric charge amount threshold value, may be obtained, and the minimum number of bending or curling may be used as the threshold value of the number of times.
In another embodiment, the control circuit 1600 controls the switching circuit 1500 to be turned on at predetermined time intervals. The predetermined time interval may be any time interval of 6 hours, 2 days, or 5 days, etc. And the predetermined time interval may be preset in the control circuit 1600 by a designer or may be set by the user of the display 1000 themselves. When the setting is performed by the user, the user can perform the setting according to the actual use condition of the display screen 1000, so that the flexibility is high.
It is appreciated that the charge detector 1800 is not required in this case, which saves cost and reduces difficulty in manufacturing the display 1000.
Also in this embodiment, the condition that the control circuit 1600 controls the switching circuit 1500 to be turned off after the switching circuit 1500 is controlled to be turned on may be that a predetermined time is reached.
In another embodiment, the control circuit 1600 controls the switch circuit 1500 to be turned on according to the received operation instruction. The operation instruction may be issued by the user, and if the user finds that the display screen 1000 has a poor display when using the terminal where the display screen 1000 is located, the user may issue the operation instruction to the control circuit 1600 by triggering a key, inputting a gesture, etc., and then the control circuit 1600 controls the switch circuit 1500 to be turned on, or the operation instruction may also be sent by another terminal connected to the terminal where the display screen 1000 is located.
Also in this embodiment, after the control circuit 1600 controls the switching circuit 1500 to be turned on, the control circuit 1600 may control the switching circuit 1500 to be turned off when a predetermined time is reached, or may control the switching circuit 1500 to be turned off when an operation instruction is received again.
With continued reference to fig. 1, in the present embodiment, the switching circuit 1500 includes a diode 1510 and a switching element 1520.
The diode 1510 is connected in series with the switching element 1520, and the anode of the diode 1510 is connected with the connection terminal 1400, the cathode is connected with the supporting layer 1300, and the switching element 1520 is electrically connected with the control circuit 1600 to be turned on and off under the control of the control circuit 1600, that is, the switching element 1520 is turned on, the switching circuit 1500 is turned on, the switching element 1520 is turned off, and the switching circuit 1500 is turned off.
Wherein diode 1510 protects power supply 1700 from reverse flow of charge on support layer 1300 into power supply 1700. In other embodiments, the switching circuit 1500 may not include the diode 1510.
With continued reference to fig. 1, in this embodiment, the power supply 1700 for applying a voltage to the supporting layer 1300 is a built-in power supply of the display screen 1000, and at this time, the display screen 1000 further includes a battery 1710, the battery 1710 is connected to the connection terminal 1400, and the voltage is applied to the supporting layer 1300, that is, the battery 1710 is used as the power supply 1700.
In other embodiments, the power supply 1700 for applying a voltage to the supporting layer 1300 may be an external power supply of the display screen 1000, and in this case, when the display screen 1000 is externally connected to the power supply, the external power supply applies a voltage to the supporting layer 1300.
In the present embodiment, the base layer 1200 and the support layer 1300 are film layers inherent to the display panel 1000, specifically, the base layer 1200 is a polyimide film layer inherent to the display panel 1000, and the support layer 1300 is a steel sheet inherent to the display panel 1000.
Specifically, in the prior art, a typical display screen includes a polyimide film layer that protects the screen body and a steel sheet that supports the screen body and ensures flatness of the screen body, but the structure of each film layer in the display screen 1000 is not changed in this embodiment, and a voltage is applied to the steel sheet that supports the polyimide film layer on the basis of the existing structure, so as to reduce static electricity focused on the polyimide film layer.
In other embodiments, the supporting layer 1300 may not be an intrinsic steel sheet of the display screen 1000, and the supporting layer 1300 may be added based on the existing structure, and a voltage may be applied to the added supporting layer 1300 to reduce static electricity focused on the substrate layer 1200.
With continued reference to fig. 1, in this embodiment, the display screen 1000 includes, in addition to the screen body 1100, the substrate layer 1200 and the supporting layer 1300, other film layers, for example, a first adhesive layer 1001 disposed between the substrate layer 1200 and the supporting layer 1300, a second adhesive layer 1002 disposed between the screen body 1100 and the substrate layer 1200, and a third adhesive layer 1003 disposed on a side of the screen body 1100 away from the substrate layer 1200 and sequentially stacked with a polarizer layer 1004, a fourth adhesive layer 1005 and a cover layer 1006.
In an embodiment, the materials of the first adhesive layer 1001 and the fourth adhesive layer 1005 are OCA (Optically Clear Adhesive, optical adhesive), and the materials of the second adhesive layer 1002 and the third adhesive layer 1003 are PSA (pressure sensitive adhesive ).
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of an electronic device according to the present application. The electronic device 2000 includes a display screen 2100, wherein the display screen 2100 has the same structure as the display screen 1000 described above, and the specific structure thereof can be seen in the above embodiment, which is not described herein.
The electronic device 2000 may be any device having a display function, such as a mobile phone, a computer, or a television, and is not limited herein.
Meanwhile, the electronic device 2000 may further include other elements such as a power module, a communication module, a central processing unit, a speaker, a microphone, a camera, and the like, in addition to the display screen 2100.
Referring to fig. 3, fig. 3 is a flow chart illustrating an embodiment of a method for removing static electricity from a display screen according to the present application, and in combination with fig. 1, the method includes:
s310: a voltage is applied to the support layer 1300 such that a coupling capacitance is formed between the support layer 1300 and the base layer 1200 to reduce static charge accumulated on the base layer 1200.
The display screen in this embodiment has the same structure as the display screen 1000 in the foregoing embodiment, and specifically, reference may be made to the foregoing embodiment, which is not described herein again.
The manner in which the voltage is applied to the support layer 1300 has been described above, and the description thereof is omitted herein.
The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.
Claims (10)
1. A display screen, the display screen comprising:
a screen body;
the base layer and the supporting layer are arranged on the same side of the screen body;
and the connecting terminal is electrically connected with the supporting layer and is used for connecting a power supply so that the power supply applies voltage to the supporting layer, and a coupling capacitance is formed between the supporting layer and the substrate layer to reduce static charges focused on the substrate layer.
2. The display screen of claim 1, further comprising:
a switching circuit connected in series between the connection terminal and the support layer;
and the control circuit is connected with the switching circuit and used for controlling the on and off of the switching circuit.
3. The display screen of claim 2, further comprising:
and the charge detector is connected with the control circuit and is used for detecting the charge quantity on the basal layer or the supporting layer, wherein the control circuit controls the switch circuit to be conducted in response to the charge detector detecting that the charge quantity on the basal layer or the supporting layer reaches a charge quantity threshold value.
4. The display screen of claim 2, wherein the control circuit controls the switching circuit to be turned on at predetermined time intervals; or alternatively, the process may be performed,
the control circuit controls the switch circuit to be conducted according to the received operation instruction.
5. The display screen of claim 2, wherein the switching circuit comprises:
the anode of the diode is electrically connected with the connecting terminal and is used for connecting the power supply, and the cathode of the diode is electrically connected with the supporting layer;
and the switching element is connected in series with the diode and is electrically connected with the control circuit so as to be turned on and off under the control of the control circuit.
6. The display screen of claim 1, further comprising:
and a battery electrically connected to the connection terminal for applying a voltage to the support layer.
7. The display screen of claim 1, wherein the support layer is disposed on a side of the base layer facing away from the screen body; the base layer is made of polyimide, and/or the supporting layer is made of steel sheet.
8. The display screen of claim 7, wherein the screen body is an OLED flexible screen body, the base layer is a polyimide film layer inherent to the display screen, and the support layer is a steel sheet inherent to the display screen.
9. An electronic device comprising a display screen as claimed in any one of claims 1 to 8.
10. A method of removing static electricity from a display screen, the display screen comprising a screen body and a substrate layer and a support layer disposed on the same side of the screen body, the method comprising:
a voltage is applied to the support layer such that a coupling capacitance is formed between the support layer and the base layer to reduce static charge build-up on the base layer.
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| CN202111250242.2A CN114093255B (en) | 2021-10-26 | 2021-10-26 | Display screen, electronic device and method for removing static electricity of display screen |
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| CN202111250242.2A CN114093255B (en) | 2021-10-26 | 2021-10-26 | Display screen, electronic device and method for removing static electricity of display screen |
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| CN102314013A (en) * | 2010-06-30 | 2012-01-11 | 上海天马微电子有限公司 | Liquid crystal display panel and manufacturing method thereof |
| CN104570417A (en) * | 2014-12-23 | 2015-04-29 | 上海天马微电子有限公司 | Liquid crystal display screen and electronic equipment |
| CN106371658A (en) * | 2016-06-24 | 2017-02-01 | 友达光电股份有限公司 | Panel board |
| CN109166851A (en) * | 2018-10-29 | 2019-01-08 | 昆山国显光电有限公司 | Display panel and display device |
| CN112181212A (en) * | 2019-07-01 | 2021-01-05 | 鸿富锦精密工业（深圳）有限公司 | Embedded touch display device |
| CN112528933A (en) * | 2020-12-22 | 2021-03-19 | 厦门天马微电子有限公司 | Flexible circuit board, display device and manufacturing method thereof |
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