CN114241917A - Flexible curled display device and flexible display terminal - Google Patents
Flexible curled display device and flexible display terminal Download PDFInfo
- Publication number
- CN114241917A CN114241917A CN202111625942.5A CN202111625942A CN114241917A CN 114241917 A CN114241917 A CN 114241917A CN 202111625942 A CN202111625942 A CN 202111625942A CN 114241917 A CN114241917 A CN 114241917A
- Authority
- CN
- China
- Prior art keywords
- display screen
- screen
- display
- strain
- flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 11
- 230000003321 amplification Effects 0.000 claims description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010408 film Substances 0.000 description 10
- 230000000284 resting effect Effects 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 229920001621 AMOLED Polymers 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
- G09G3/035—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays for flexible display surfaces
-
- 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
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2380/00—Specific applications
- G09G2380/02—Flexible displays
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention provides a flexible curled display device and a flexible display terminal, and relates to the technical field of display. The device can control the screen body of the display screen to extinguish when the screen body of the display screen is rolled up, thereby relieving the technical problems that the prior display screen has larger power consumption and is inconvenient to control the on and off, and realizing the technical effect of reducing the power consumption.
Description
Technical Field
The invention relates to the technical field of display, in particular to a flexible curled display device and a flexible display terminal.
Background
In recent years, Active-matrix organic light emitting diode (AMOLED) technology has been developed rapidly, and due to its advantages of high contrast, high response, low power consumption, flexibility, self-luminescence, wide viewing angle, and fast response speed, liquid crystal displays are expected to be banned from becoming the mainstream choice of next generation displays.
With the rapid upgrade of intelligent terminal devices (such as smart phones, tablet computers, smart televisions, etc.), the demand for display panels is also gradually increasing, which not only requires larger display screens, but also increases the demand for being lighter, thinner and more portable. At present, display panels are developing towards inward-folding, outward-folding and rollable screens, wherein the rollable mobile phones, the rollable computers and the rollable televisions are exposed at the head angles, and compared with common display panels, the rollable screens have the advantages of space saving, convenience in carrying and the like.
Generally, a roll-to-roll display panel includes a roll and a flexible display screen, and the flexible display screen may be rolled on the roll or unrolled along the roll; however, in order to display the effect, the screen body of the display screen is made larger, and the on/off of the display screen generally needs to be controlled by a key, so that the existing flexible display screen capable of being curled has the technical problems of large power consumption and inconvenient control of the on/off.
Disclosure of Invention
The invention aims to provide a flexible curled display device and a flexible display terminal, so as to relieve the technical problem of high power consumption of a display screen in the prior art.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, an embodiment of the present invention provides a flexible display device that includes a display screen and a scroll connected to one side of the display screen, where the display screen is foldable around the scroll, and a screen-information control device is disposed on a backlight side of the display screen, and electrically connected to a display circuit of the display screen, and when the screen-information control device is under a first strain force and is in a foldable state with the display screen, the screen-information control device controls the display screen by activating the display circuit.
In some possible embodiments, the screen turning control device includes: the strain sensor is used for detecting a first strain signal of the display screen and triggering the display screen information screen when the first strain signal reaches a first threshold value.
In some possible embodiments, the strain sensor includes: a strain detection circuit; the strain detection circuit comprises a resistance strain gauge; the resistance strain gauge is used for generating resistance value change based on the first strain force so as to change the first output voltage of the strain detection circuit.
In some possible embodiments, the strain sensor further includes: the device comprises a differential amplifying module, an analog-to-digital converter module, a data processing module and a control module; the differential amplification module is used for amplifying the first output voltage into a second output voltage; the analog-to-digital converter module is used for converting the second output voltage into a digital signal and outputting the digital signal; the data processing module is used for processing the digital signal and sending the processed digital signal to the control module; the control module is used for exciting the display circuit to control the display screen information screen based on the processed digital signal.
In some possible embodiments, the first strain force comprises a first pressure; when the display screen is curled and folded around the scroll from the backlight side, the screen-folding control device is curled and folded along with the display screen under the action of the first pressure; the strain sensor is used for detecting a first pressure signal of the display screen and triggering the display screen when the first pressure signal reaches a first threshold value.
In some possible embodiments, the first strain force comprises a first tensile force; when the display screen is curled and folded around the scroll from the light emitting side, the screen information control device is curled and folded along with the display screen under the action of the first pulling force; the strain sensor is used for detecting a first tension signal of the display screen and triggering the display screen information screen when the first tension signal reaches a first threshold value.
In some possible embodiments, the screen-turning control device is disposed at an end of the display screen close to the reel, or at an end of the display screen far from the reel.
In some possible embodiments, the screen-turning control device is distributed on the display screen along a direction perpendicular to the winding shaft, and each screen-turning control device is electrically connected to the display circuit.
In some possible embodiments, at least one of the above-mentioned information screen control devices is disposed near the center of the display screen in a direction perpendicular to the above-mentioned reel; the center of the display screen is located on the surface of the backlight side.
In a second aspect, an embodiment of the present invention provides a flexible display terminal, including: any one of the flexible rolled display devices according to the first aspect above.
The invention provides a flexible curled display device and a flexible display terminal, wherein the device comprises a display screen and a scroll which is connected and arranged on one side of the display screen, the display screen can be curled and folded around the scroll, a screen resting control device is arranged on the backlight side of the display screen, the screen resting control device is electrically connected with a display circuit of the display screen, when the screen resting control device is in a curled and folded state along with the display screen under the action of a first strain force, the screen resting control device controls the screen resting of the display screen by exciting the display circuit. The device can control the screen body of the display screen to extinguish when the screen body of the display screen is rolled up, thereby relieving the technical problems that the prior display screen has larger power consumption and is inconvenient to control the on and off, and realizing the technical effect of reducing the power consumption.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a flexible display device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a flexible display device according to an embodiment of the present invention in different unfolded states;
fig. 3 is a schematic circuit diagram of a strain sensor according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a differential amplifier module according to an embodiment of the present invention;
fig. 5 is a schematic view of an installation position of a screen turning control device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In recent years, the AMOLED has the advantages of high contrast, high response, low power consumption, flexibility, self-luminescence, wide viewing angle, high response speed and the like, so that the liquid crystal display is expected to be banned from becoming the mainstream choice of the next generation display. With the rapid upgrade of intelligent terminal devices (such as smart phones, tablet computers, smart televisions, etc.), the demand for display panels is also gradually increasing, which not only requires larger display screens, but also increases the demand for being lighter, thinner and more portable. At present, display panels are developing towards inward-folding, outward-folding and rollable screens, wherein the rollable mobile phones, the rollable computers and the rollable televisions are exposed at the head angles, and compared with common display panels, the rollable screens have the advantages of space saving, convenience in carrying and the like.
At present, an existing scroll-type display panel includes a scroll and a flexible display screen, and the flexible display screen may be rolled on the scroll or unrolled along the scroll; however, in order to display the effect, the screen body of the display screen is made larger, and the on/off of the display screen generally needs to be controlled by a key, so that the existing flexible display screen capable of being curled has the technical problems of large power consumption and inconvenient control of the on/off.
Based on this, the embodiment of the invention provides a flexible curled display device and a flexible display terminal, so as to alleviate the technical problems that the existing display screen has large power consumption and is inconvenient to control on and off. Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
To facilitate understanding of the present embodiment, first, a detailed description is given to a flexible display device disclosed in the present embodiment, referring to a schematic structural diagram of a flexible display device shown in fig. 1, the flexible display device includes a display screen 10 and a reel 20 connected to and disposed at one side of the display screen, the display screen 10 can be rolled and folded around the reel 20, a message screen control device 30 is disposed at a backlight side 104 of the display screen 10, the message screen control device 30 is electrically connected to a display circuit of the display screen 10, and when the message screen control device 30 is in a rolled and folded state with the display screen 10 under the action of a first strain, the message screen control device 30 controls the message screen 10 by activating the display circuit.
The display screen may be a display panel applying an active matrix organic light emitting diode panel AMOLED technology. The display screen 10 generally includes two surfaces, i.e., a backlight side 104 (inner surface) and a light-emitting side 102 (outer surface) as shown in fig. 1, and generally, the screen-closing control device can be disposed at any position of the inner surface of the display screen 10, and when the display screen is rolled around the reel and folded, the screen-closing control device can be rolled around the reel along with the display screen. As a specific example, the display screen may be folded by being rolled around a reel at the light emitting side, or may be folded by being rolled around a reel at the backlight side.
The application provides a flexible display device that curls, when the screen body that the screen controlling means that lives along with the display screen in the device was curled up, can be through arousing display circuit to breath the screen with control display screen, it needs button or touch to breath the screen to have alleviated current display screen and leads to the technical problem that the consumption is great, be not convenient for carry out the bright control of going out, has realized the technological effect that reduces the consumption.
In one embodiment, the screen turning control device may include: the strain sensor is used for detecting a first strain signal of the display screen and triggering the display screen when the first strain signal reaches a first threshold value.
The strain sensor can be arranged on the backlight side of the display screen through the flexible thin film attached to the backlight side surface of the display screen, and can be randomly curled along with the flexible thin film.
As a specific example, the flexible film is typically attached to the backlight side (inner surface in fig. 1) of the display screen, and the strain sensor may be mounted on one or both surfaces of the flexible film, optionally curling with the flexible film along with the rollable screen.
That is, the strain sensor may be mounted only on the side of the flexible film facing the display screen; the strain sensor may also be mounted on both the side of the flexible film facing the display screen and the side of the flexible film facing away from the display screen. The first strain force may be a force that changes an unfolded state of the display screen, and referring to fig. 2, the unfolded state of the display screen may include a fully unfolded state (shown in part a of fig. 2) and a rolled-up state (shown in part B of fig. 2), where the rolled-up state may include a state where rolling is just started, a state where rolling is performed to a certain extent, and a state where rolling is performed to a maximum angle (folding or fully rolling). That is, the first strain force may be a force that changes the display screen from a fully unfolded state to a various rolled and folded states, that is, a force that causes the display screen to be rolled or folded.
In one embodiment, the first strain force comprises a first pull force; when the display screen is curled and folded around the winding shaft from the light emitting side, the screen information control device is in a curled and folded state along with the display screen under the action of first pulling force; the strain sensor is used for detecting a first tension signal of the display screen, and when the first tension signal reaches a first threshold value, the display screen is triggered.
In the embodiment of the invention, the strain sensor is generally attached to the flexible film on the backlight side surface of the display screen, and when the display screen is rolled and folded around the winding shaft from the backlight side (the light-emitting side is inside and the backlight side is outside after the rolling and folding), the information screen control device is under the action of the tensile force acting on the display screen, namely, the strain sensor is stretched at the moment, and the first strain force is the tensile force. Wherein the first threshold may be a minimum tension value that enables the display screen to be curled from the backlight side about the reel.
In one embodiment, the first strain force comprises a first pressure; when the display screen is curled and folded around the winding shaft from the backlight side, the screen-information control device is in a curled and folded state along with the display screen under the action of first pressure; the strain sensor is used for detecting a first pressure signal of the display screen, and when the first pressure signal reaches a first threshold value, the display screen is triggered.
In the embodiment of the invention, the strain sensor is generally attached to the flexible film on the backlight side surface of the display screen, and when the display screen is rolled and folded around the winding shaft from the light emitting side (the light emitting side is outside and the backlight side is inside after the rolling and folding), the screen-information control device is under the action of pressure acting on the display screen and is in a rolling and folding state along with the display screen, namely, the strain sensor is extruded at the moment, and the first strain force is pressure. The first threshold value may be a minimum pressure value that enables the display screen to curl around the reel from the light emitting side.
In one embodiment, referring to fig. 3, a strain sensor includes: a strain detection circuit 121, a differential amplification module 122, an analog-to-digital converter module 123, a data processing module 124 and a control module 125.
The strain detection circuit comprises a resistance strain gauge; the resistance strain gauge is used for generating resistance value change based on the first strain force so as to change the first output voltage of the strain detection circuit; the differential amplification module is used for amplifying the first output voltage into a second output voltage; the analog-to-digital converter module is used for converting the second output voltage into a digital signal and outputting the digital signal; the data processing module is used for processing the digital signal output by the analog-to-digital converter module and sending the processed digital signal to the control module; the control module is used for exciting the display circuit to control the display screen information screen based on the processed digital signal. The resistance strain gauge may be an element for measuring strain, which can convert a change in strain on a mechanical member into a change in resistance. As a specific example, referring to fig. 3, the strain detection circuit 121 includes: the four resistance strain gauges form four arms of a detection circuit (such as a Wheatstone bridge), and a bridge working power supply voltage VCC is supplied, wherein R1, R2, R3 and R4 are resistance strain gauges. The original resistance value of each strain gauge is usually 120 ohms, the difference of the resistance values of the strain gauges in the same bridge is +/-0.5 ohms, and the four resistors form a detection circuit to complete conversion from a strain signal to a voltage signal. That is, when the screen body of the display screen is curled, the first strain force is not zero, the strain sensor is stressed and changes in stress (pull-up or pressure), the resistance strain gauge is deformed together, and the deformation changes the resistance value of the resistance strain gauge, so that the output voltage (the voltage between Von and Vop) of the detection circuit is also changed.
Because the resistance value change of the resistance strain gauge is usually small when the resistance strain gauge is under tension or pressure, the output voltage signal is amplified through the differential amplification module; the amplified voltage signal is converted into a digital signal by an analog-to-digital converter, and then data processing and data output are carried out by a CPU. The group differential amplifying module may be an LM2904 or AD521 operational amplifier, and the analog-to-digital converter may be an ADC0834 analog-to-digital conversion chip.
A circuit structure diagram of a differential amplifier module is shown in fig. 4, and the differential amplifier module includes: two triodes, resistors R5, R6, R6, R8 and R9. The input ends of the differential amplification module are Von and Vop, and the two input ends are respectively connected with the anode and the cathode of a triode; one end of the resistor R5 is connected with Von, and the other end is connected with the output end of the triode; the output of the triode is also connected with the negative electrode of the second triode through a resistor R6; the anode of the second triode is respectively connected with the voltage Vcc through a resistor R7 and is grounded through a resistor R9; one end of the resistor R8 is connected to the negative electrode of the second triode, and the other end is connected to the output end of the second triode, which is the output end Dout of the whole differential amplification module. With the above configuration, the difference between the voltages at the two input terminals Von and Vop can be amplified by a fixed gain, and the amplified voltage can be output from the output terminal Dout.
The amplified voltage signal is converted into a digital signal by an analog-to-digital converter, and then is subjected to data processing by a data processing module (such as a CPU (central processing unit) which is separately arranged in the strain sensor and performs data processing, and the data is output.
The embodiment of the application provides a flexible display device that curls, but the attached strain sensor of the internal surface of display screen, strain sensor includes strain detection circuit, this strain detection circuit is located flexible film, when the screen body is rolled up, when the film atress takes place the stress variation, resistance strain gage among the strain detection circuit also produces deformation together, make the resistance of strain gage change, and simultaneously, the voltage that adds on resistance strain gage changes, the voltage value after the change is through processing such as differential amplification module, analog-to-digital conversion module and control module, arouse display circuit by control module and make the screen body extinguish, in order to save the consumption.
In one embodiment, the information screen control device is arranged at one end of the display screen close to the scroll, see part a of fig. 5. Under the condition, the display screen is turned off when the display screen is just rolled and folded around the scroll, so that the power consumption is greatly saved. Alternatively, in another embodiment, the information screen control device is arranged at one end of the display screen far away from the scroll, see part B of fig. 5. Under the condition, the screen can be turned off only when the display screen is completely curled, and frequent screen turning off caused by curling due to false triggering can be avoided.
In the above embodiments, the information screen control device is disposed on the backlight side of the display screen, that is, the display screen is curled and folded around the winding shaft from the light emitting side (the light emitting side is outside and the backlight side is inside after the curling and folding), and at this time, the first strain acting on the display screen to curl the display screen is pressure.
In addition, a plurality of screen-turning control devices can be distributed or uniformly distributed on the display screen along the direction vertical to the scroll, and each screen-turning control device is electrically connected with the display circuit respectively. In this case, when the display screen is rolled up around the winding shaft, the screen is turned off when the first screen turning control device under pressure is rolled up, and at this time, the screen is not completely rolled up.
As a specific example, at least one information screen control device is disposed near the center of the display screen, see section C of fig. 5. When the screen control device arranged in the middle is curled relative to the screen control device arranged at one end close to the scroll, the screen control device is not sensitive enough to trigger screen extinguishing signals when a weak curling trend is generated; and for the screen resting control device is arranged at one end far away from the scroll, the curled pressure can be sensed more easily by arranging the screen resting control device at the middle position, and the screen resting signal can not be triggered when the display screen is completely curled.
The flexible display device provided by the embodiment of the application can be applied to terminal equipment such as smart phones, tablet computers and smart televisions. Compared with a common display panel, the flexible display device with the curling function as the display panel has the advantages of space saving, convenience in carrying and the like, and can automatically turn off the screen when the screen is rolled up, so that the power consumption of the display screen is greatly reduced.
In addition, this application embodiment still provides a flexible display terminal, includes: any one of the flexible rolled display devices described above.
The embodiment of the application provides a flexible display device and a flexible display terminal that curl, but this flexible face, the screen body of control curl screen extinguish. The device can control the screen body of the curled screen to be extinguished when the screen body of the curled screen is curled, solves the technical problem that the power consumption of the existing display screen is large, and achieves the technical effect of reducing the power consumption.
It should be noted that: like reference numbers and letters refer to like items in the figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A flexible curled display device is characterized by comprising a display screen and a scroll which is connected and arranged on one side of the display screen;
the display screen can be coiled around the scroll, a screen-off control device is arranged on the backlight side of the display screen, and the screen-off control device is electrically connected with a display circuit of the display screen;
when the screen-touching control device is in a curled folding state along with the display screen under the action of a first strain force, the screen-touching control device controls the screen-touching of the display screen by exciting the display circuit.
2. A flexible roll display device according to claim 1, wherein the information screen control means comprises: the strain sensor is used for detecting a first strain signal of the display screen and triggering the display screen when the first strain signal reaches a first threshold value.
3. The flexible roll display device of claim 2, wherein the strain sensor comprises: a strain detection circuit; the strain detection circuit comprises a resistance strain gauge;
the resistance strain gauge is used for generating resistance value change based on first strain force so as to change first output voltage of the strain detection circuit.
4. The flexible roll display device of claim 3, wherein the strain sensor further comprises: the device comprises a differential amplifying module, an analog-to-digital converter module, a data processing module and a control module;
the differential amplification module is used for amplifying the first output voltage into a second output voltage;
the analog-to-digital converter module is used for converting the second output voltage into a digital signal and outputting the digital signal;
the data processing module is used for processing the digital signal and sending the processed digital signal to the control module;
the control module is used for exciting the display circuit to control the display screen information screen based on the processed digital signal.
5. The flexible rolled display device according to claim 2, wherein the first strain force comprises a first pressure; when the display screen is curled and folded around the scroll from the backlight side, the screen-information control device is in a curled and folded state along with the display screen under the action of the first pressure; the strain sensor is used for detecting a first pressure signal of the display screen and triggering the display screen when the first pressure signal reaches a first threshold value.
6. The flexible rolled display device according to claim 2, wherein the first strain force comprises a first pulling force; when the display screen is curled and folded around the scroll from the light emitting side, the screen information control device is curled and folded along with the display screen under the action of the first pulling force; the strain sensor is used for detecting a first tension signal of the display screen and triggering the display screen when the first tension signal reaches a first threshold value.
7. A flexible roll display device according to claim 1, wherein the information screen control means is provided at an end of the display screen close to the roll axis or at an end of the display screen remote from the roll axis.
8. The flexible curling display device of claim 1, wherein a plurality of information screen control devices are distributed on the display screen along a direction perpendicular to the winding shaft, and each information screen control device is electrically connected with the display circuit.
9. A flexible scrolling display device as claimed in claim 8, wherein at least one of said information screen control means is disposed near the center of said display screen in a direction perpendicular to said scroll axis; the center of the display screen is located on the surface of the backlight side.
10. A flexible display terminal, comprising: a flexible rolled display device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111625942.5A CN114241917B (en) | 2021-12-28 | 2021-12-28 | Flexible crimp display device and flexible display terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111625942.5A CN114241917B (en) | 2021-12-28 | 2021-12-28 | Flexible crimp display device and flexible display terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114241917A true CN114241917A (en) | 2022-03-25 |
| CN114241917B CN114241917B (en) | 2024-01-09 |
Family
ID=80764095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111625942.5A Active CN114241917B (en) | 2021-12-28 | 2021-12-28 | Flexible crimp display device and flexible display terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114241917B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139355A (en) * | 2011-11-22 | 2013-06-05 | 索尼爱立信移动通讯有限公司 | Foldable electronic device and detection method of opening and closing modes thereof |
| CN103162875A (en) * | 2011-12-16 | 2013-06-19 | 苹果公司 | Electronic device with noise-cancelling force sensor |
| CN205899501U (en) * | 2016-05-20 | 2017-01-18 | 深圳凯利通通信设备有限公司 | Smart mobile phone electric capacity pen and smart mobile phone with function of weighing |
| CN107170375A (en) * | 2017-07-19 | 2017-09-15 | 上海天马微电子有限公司 | Flexible display apparatus and its control method |
| US20170309226A1 (en) * | 2016-04-26 | 2017-10-26 | Samsung Display Co., Ltd | Flexible display device and method for compensating image of flexible display device |
| CN112396962A (en) * | 2020-11-16 | 2021-02-23 | 京东方科技集团股份有限公司 | Curled display device, method for controlling curling of flexible display screen and electronic equipment |
| CN112992037A (en) * | 2021-02-26 | 2021-06-18 | 合肥维信诺科技有限公司 | Display device |
-
2021
- 2021-12-28 CN CN202111625942.5A patent/CN114241917B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139355A (en) * | 2011-11-22 | 2013-06-05 | 索尼爱立信移动通讯有限公司 | Foldable electronic device and detection method of opening and closing modes thereof |
| CN103162875A (en) * | 2011-12-16 | 2013-06-19 | 苹果公司 | Electronic device with noise-cancelling force sensor |
| US20170309226A1 (en) * | 2016-04-26 | 2017-10-26 | Samsung Display Co., Ltd | Flexible display device and method for compensating image of flexible display device |
| CN205899501U (en) * | 2016-05-20 | 2017-01-18 | 深圳凯利通通信设备有限公司 | Smart mobile phone electric capacity pen and smart mobile phone with function of weighing |
| CN107170375A (en) * | 2017-07-19 | 2017-09-15 | 上海天马微电子有限公司 | Flexible display apparatus and its control method |
| CN112396962A (en) * | 2020-11-16 | 2021-02-23 | 京东方科技集团股份有限公司 | Curled display device, method for controlling curling of flexible display screen and electronic equipment |
| CN112992037A (en) * | 2021-02-26 | 2021-06-18 | 合肥维信诺科技有限公司 | Display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114241917B (en) | 2024-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11644869B2 (en) | Touch panel comprising conductive layers having opening overlapping with light-emitting element | |
| US20160183364A1 (en) | Device including stretchable display and method of controlling the device | |
| JP6903795B2 (en) | Touch panel and touch panel module | |
| JP5138406B2 (en) | Display device and driving method thereof | |
| KR101383709B1 (en) | Display device and driving method thereof | |
| JP2022008335A (en) | Input-output device | |
| CN110069196B (en) | Flexible display device and control method thereof | |
| US20110084898A1 (en) | Memory shape element for flexible oled display screen | |
| KR20200090438A (en) | Electronic device and method for preventing damage of display | |
| KR20090122276A (en) | A display unit, a method and a computer program product | |
| KR20060092879A (en) | Method and system for sensing light using interferometric elements | |
| CN108900673B (en) | Mobile terminal | |
| KR20130140446A (en) | Display device | |
| WO2020156114A1 (en) | Flexible screen apparatus and electronic device | |
| US11592874B1 (en) | Touch sensing in a flexible/foldable touch screen display | |
| CN113516915A (en) | Display module, control method thereof and electronic equipment | |
| CN112509470A (en) | Rollable display panel and rollable display device | |
| TW200523863A (en) | Apparatus and method for operating and controlling display and backlight in portable terminals | |
| KR101872031B1 (en) | Display device | |
| CN114080584A (en) | Flexible touch panel with piezoelectric force sensing | |
| CN114241917A (en) | Flexible curled display device and flexible display terminal | |
| KR20200063565A (en) | An electronic device including an display panel formed of electrodes of different shapes for each region | |
| TWI337717B (en) | An image display system with a optical touch panel | |
| JP4638522B2 (en) | Portable electronic devices | |
| WO2022030998A1 (en) | Electronic device comprising display and operation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |