CN112927619B - Sliding scroll display device - Google Patents
Sliding scroll display device Download PDFInfo
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- CN112927619B CN112927619B CN202110129864.3A CN202110129864A CN112927619B CN 112927619 B CN112927619 B CN 112927619B CN 202110129864 A CN202110129864 A CN 202110129864A CN 112927619 B CN112927619 B CN 112927619B
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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
Abstract
The embodiment of the invention discloses a sliding scroll display device. The roll-sliding display device includes: the sliding and rolling screen comprises a flexible display screen and a supporting sheet which are arranged in a stacked mode, wherein the supporting sheet is positioned on one side, away from the light emitting side, of the flexible display screen; a plurality of hollow patterns are arranged on the supporting sheet; the optical detector is used for collecting the light intensity change of the area where the hollow pattern is located on the supporting sheet; the control module is used for determining the actual extension amount of the sliding scroll screen according to the light intensity change of the area where the hollow pattern collected by the light detector is located, and calculating the deformation amount of the sliding scroll screen by comparing the theoretical extension amount; and the controller is also used for controlling the sliding and rolling driving mechanism to compensate the curling and shrinking amount of the sliding and rolling screen according to the deformation amount of the sliding and rolling screen. The embodiment of the invention solves the problem that the flexible screen is loosened due to the fact that the existing sliding and rolling screen is easy to wrinkle due to multiple sliding and rolling, can provide tension for the stretched sliding and rolling screen, enables the sliding and rolling screen to be in a tight state, and ensures the smooth display of the stretched sliding and rolling screen.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a sliding scroll display device.
Background
Nowadays, the flexible display panel gradually enters the visual field of consumers, and the rollability of the screen greatly expands the application of the display field. Compared with a traditional screen, the flexible screen has obvious advantages, is lighter and thinner in size, is lower than a traditional device in power consumption, and is beneficial to improving the cruising ability of equipment. Meanwhile, based on the characteristics of flexibility and good flexibility, the durability of the screen is greatly higher than that of the traditional screen.
When the flexible screen is used in a display device, a folding screen or a sliding rolling screen can be generally adopted, wherein the folding screen needs to be folded by a connecting component, for example, a connecting shaft or a hinge structure is arranged at a bent part, so that the design difficulty is high, and the cost is high; to rolling up the screen, the area of its display area can be adjusted, can curl it when not using, conveniently accomodates and save space.
However, the flexible screen in the roll-to-roll display is easily deformed by pulling due to a plurality of stretching and roll-to-roll processes, and therefore, the flexible screen is easily wrinkled or wrinkled due to local deformation during the display process or after the roll-to-roll process, resulting in problems of display unevenness and flexible screen looseness.
Disclosure of Invention
The invention provides a sliding roll display device, which is used for preventing or reducing the wrinkling condition of a flexible screen and ensuring the flatness of flexible display.
An embodiment of the present invention provides a sliding scroll display device, including:
the sliding and rolling screen comprises a non-display part and a display part, wherein the display part comprises a fixed display part and a sliding and rolling display part which are connected with each other, and the fixed display part is fixed on a first plane for displaying; the non-display part is connected with one side of the sliding and rolling display part, which is far away from the fixed display part;
the sliding and rolling screen further comprises a flexible display screen and a supporting sheet which are arranged in a stacked mode, and the supporting sheet is positioned on one side, away from the light emergent side, of the flexible display screen; a plurality of hollow patterns are arranged on the supporting sheet;
the sliding and rolling driving mechanism is used for driving the sliding and rolling display part to slide and bend in the telescopic process, and the sliding and rolling display part is in a curling and shrinking state in the shrinking state of the sliding and rolling driving mechanism; under the extension state of the sliding roll driving mechanism, at least partial area of the sliding roll display part extends out and is in a flat state;
the optical detector is used for collecting the light intensity change of the area where the hollow pattern is located on the supporting sheet;
the control module is respectively electrically connected with the optical detector and the sliding roll driving mechanism and is used for determining the actual extension amount of the sliding roll screen according to the light intensity change of the area where the hollow pattern is collected by the optical detector and calculating the deformation amount of the sliding roll screen by comparing the theoretical extension amount; and the controller is also used for controlling the sliding and rolling driving mechanism to compensate the curling shrinkage of the sliding and rolling screen according to the deformation of the sliding and rolling screen.
In the embodiment of the invention, a plurality of hollow patterns are arranged on the supporting sheet in the sliding scroll screen, the light detector is used for collecting the light intensity change of the area where the hollow patterns are located, the control module is used for determining the actual extension amount of the sliding scroll screen according to the light intensity change, and then the deformation amount of the sliding scroll screen is calculated by comparing the theoretical extension amount, so that the sliding scroll driving mechanism is controlled to compensate the deformation amount of the sliding scroll screen, the sliding scroll screen is tightly attached to the sliding scroll driving mechanism, and the stretching state is expressed. The embodiment of the invention solves the problem that the flexible screen is loosened due to the fact that the existing sliding and rolling screen is easy to wrinkle due to multiple sliding and rolling, can provide tension for the stretched sliding and rolling screen, enables the sliding and rolling screen to be in a tight state, and ensures the smooth display of the stretched sliding and rolling screen.
Drawings
Fig. 1 is a schematic structural diagram of a scrolling display device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a configuration of a scrolling screen in the scrolling display device of FIG. 1;
FIG. 3 is a schematic view of the internal structure of the roll display device shown in FIG. 1;
FIG. 4 is a cross-sectional view of the roll display device of FIG. 1;
FIG. 5 is a schematic view of the display device of FIG. 1 in a contracted state;
FIG. 6 is a schematic view of the display device of FIG. 1 in an extended position;
FIG. 7 is a cross-sectional view of a part of the structure of a scrolling screen in a scrolling display device according to an embodiment of the present invention;
FIG. 8 is a cross-sectional view of a part of a structure of a sliding/rolling display device according to another embodiment of the present invention;
fig. 9 and 10 are schematic structural diagrams of the interior of two types of sliding roll display devices provided by the embodiment of the invention;
FIG. 11 is a partial block diagram of an interior of a sliding scroll display apparatus according to an embodiment of the present invention;
FIG. 12 is a partial block diagram of an interior of a sliding scroll display apparatus according to an embodiment of the present invention;
FIG. 13 is a partial block diagram of an interior of a slider display apparatus according to another embodiment of the present invention;
FIG. 14 is a partial block diagram of an interior of a sliding scroll display apparatus according to an embodiment of the present invention;
fig. 15 and fig. 16 are schematic structural views of two support sheets provided by an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a sliding scroll display device according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of a sliding scroll screen in the sliding scroll display device shown in fig. 1, and fig. 3 is a schematic internal structural diagram of the sliding scroll display device shown in fig. 1. Referring to fig. 1 to 3, the roll display device includes: the sliding and rolling screen 10 comprises a non-display part 11 and a display part 12, wherein the display part 12 comprises a fixed display part 121 and a sliding and rolling display part 122 which are connected with each other, and the fixed display part 121 is fixed on the first plane 100 for displaying; the non-display part 11 is connected with one side of the sliding scroll display part 122 far away from the fixed display part 121; the sliding rolling screen 10 further includes a flexible display screen 110 and a supporting sheet 120, which are stacked, wherein the supporting sheet 120 is located on one side of the flexible display screen 110, which is away from the light exit side; the support sheet 120 is provided with a plurality of hollow patterns 1201.
A sliding and rolling driving mechanism 20 for driving the sliding and rolling display part 122 to slide and bend in the process of extension and retraction, wherein the sliding and rolling display part 122 is in a rolling and retraction state in the retraction state of the sliding and rolling driving mechanism 20; in the extended state of the roll driving mechanism 20, at least a partial region of the roll display 122 is extended and is in a flat state.
And the optical detector 30 is used for collecting the light intensity change of the area where the hollow pattern 1201 on the support sheet 120 is located.
The control module (not shown in the figure) is respectively electrically connected with the optical detector 30 and the sliding and rolling driving mechanism 20, and is used for determining the actual extension amount of the sliding and rolling screen 10 according to the light intensity change of the area where the hollow-out pattern 1201 acquired by the optical detector 30 is located, and calculating the deformation amount of the sliding and rolling screen 10 by comparing with the theoretical extension amount; and is also used for controlling the sliding roll driving mechanism 20 to compensate the rolling shrinkage of the sliding roll screen 10 according to the deformation amount of the sliding roll screen 10.
First, the first plane refers to a light emitting surface of the scrolling display device, and the scrolling screen 10 can emit light to display in the light emitting surface when the scrolling driving mechanism 20 is in the retracted state and in the extended state, and the difference is only the change of the size of the light emitting area. The fixed display part 121 of the scrolling screen 10 is fixed on the first plane for displaying, and the scrolling display part 122 can adjust the display area according to the actual stretching condition. For example, during the expansion and contraction process, the display area of the sliding and rolling display part 122 on the side away from the fixed display part 121 may be separated from the first plane, for example, may be bent along the surface of the sliding and rolling driving mechanism 20, or even bent and extended to the back of the sliding and rolling driving mechanism 20, and at this time, the display area of the sliding and rolling display part 122 separated from the first plane may be closed, and the area remaining in the first plane may be displayed. In the fully extended state, the sliding scroll display portion 122 can be set to be fully extended on the first plane, and the display screen is at the maximum at this time; in the fully contracted state, the roll display part 122 is bent and attached to the side and back of the roll driving mechanism 20, and the display screen is minimized. In summary, during the extension and retraction of the sliding roll driving mechanism 20, the display area of the entire sliding roll display device can be freely adjusted.
On the basis that the sliding and rolling driving mechanism 20 drives the sliding and rolling screen 10 to extend and contract to adjust the display area, the sliding and rolling screen 10 further comprises a laminated flexible display screen 110 and a supporting sheet 120, wherein the flexible display screen 110 is of a flexible structure and has excellent bending flexibility. The support sheet 120 can be made of a metal material, such as a steel sheet, and can have flexibility through a suitable thickness design on the premise of having a certain rigidity capability, so that the support sheet can be used as a support structure for the flexible display screen 110 to ensure that the entire sliding rolling screen 10 has the flat and bending capabilities. It can be understood that, for the entire roll screen 10, the roll display portion 122 should have better bending capability, and the support sheet 120 of the present embodiment has a plurality of hollow patterns 1201, so as to relatively improve the flexibility of the support sheet 120 made of steel sheet. In this embodiment, the sliding roll display device is further provided with an optical detector 30 and a control module, wherein the optical detector 30 is responsible for detecting the light intensity of the region where the hollow pattern 1201 on the supporting sheet 120 is located. It can be understood that, since the supporting sheet 120 is opaque, when the flexible display panel 110 disposed on the supporting sheet 120 has a downward light transmittance capability, it can be understood that the hollow patterns 1201 on the supporting sheet 120 form a transmitted light, and when the light detector 30 detects light, the area with stronger light intensity is the hollow pattern 1201. In the process of sliding the roll screen 10, the hollow patterns 1201 on the support sheet 120 also move, and the light detector 30 can detect the light and shade change of the light at the support sheet. Or it can also be understood that there is no downward light transmission above the supporting sheet 120, at this time, since the supporting sheet 120 is a metal product, it has a certain light reflection capability, and meanwhile, since the hollow pattern 1201 does not have the light reflection capability, when the light detector 30 detects light, the area with weaker light intensity is the hollow pattern 1201. During the sliding process of the sliding screen 10, the hollow patterns 1201 on the support sheet 120 also move, and the light detector 30 can also detect the light and shade change of the light on the support sheet 120.
Based on the light intensity change obtained by the light detector 30, the control module can determine the number of the hollow patterns 1201 moving through the detection area of the light detector 30 according to the number of light and dark changes, and on the basis of knowing the size and the spacing distance of the hollow patterns 1201, the control module can calculate the moving distance of the support sheet 120, that is, the moving distance of the roll screen 10 can be obtained. In addition, the control module may also calculate the speed of the light intensity change obtained by the light detector 30, that is, the speed of the light and dark change, and according to the speed of the light and dark change, the size of the hollow pattern 1201 and the distance between the hollow patterns 1201, the moving speed of the support sheet 120 may be determined, and then the moving distance of the support sheet 120 may be accurately calculated according to the moving time, that is, the moving distance of the roll screen 10 may be accurately obtained. At this time, on the premise that the initial position of the sliding scroll screen 10 is known, the control module may determine the current position of the sliding scroll screen 10, that is, may determine the actual extension amount of the sliding scroll screen 10. It will be appreciated that, since the slider-roll screen 10 is deformed, usually by local expansion, during a plurality of slider-roll bending operations, the actual extension of the slider-roll screen 10 is increased compared to the theoretical extension, and the amount of deformation of the slider-roll screen 10 can be determined by comparing the theoretical extensions. The control module can further compensate the curling shrinkage of the sliding rolling screen 10 by controlling the sliding rolling driving mechanism 20 on the basis of calculating the deformation of the sliding rolling screen 10 according to the light intensity change condition provided by the light detector 30. In other words, the sliding roll driving mechanism 20 will roll up the excessive protruding amount of the sliding roll screen 10 caused by the deformation, so as to provide tension for the protruding sliding roll screen 10, so that the protruding sliding roll screen 10 is in a tense state, and is ensured to be closely attached to the sliding roll driving mechanism 20, thereby avoiding and reducing the wrinkling of the sliding roll screen 10. It should be noted that the control module is essentially a control chip or a control circuit, which can be disposed inside the scrolling display device, including but not limited to being disposed in the same area as the driving display structure of the scrolling screen.
In the embodiment of the invention, a plurality of hollow patterns are arranged on the supporting sheet in the sliding scroll screen, the light detector is used for collecting the light intensity change of the area where the hollow patterns are located, the control module is used for determining the actual extension amount of the sliding scroll screen according to the light intensity change, and then the deformation amount of the sliding scroll screen is calculated by comparing the theoretical extension amount, so that the sliding scroll driving mechanism is controlled to compensate the deformation amount of the sliding scroll screen, the sliding scroll screen is tightly attached to the sliding scroll driving mechanism, and the stretching state is expressed. The embodiment of the invention solves the problem that the flexible screen is loosened due to the fact that the existing sliding and rolling screen is easy to wrinkle due to multiple times of sliding and rolling, can provide tension for the stretched sliding and rolling screen, enables the sliding and rolling screen to be in a tight state, and ensures the smooth display of the stretched sliding and rolling screen.
It should be noted that, the embodiment of the present invention may also be used to compensate the display area on the basis of obtaining the actual extending amount of the scrolling screen by calculation using the light detector and the control module. It can be understood that, because the sliding and rolling screen is easy to expand and deform in the process of multiple sliding and rolling, when the sliding and rolling screen is displayed in a half-extended state, a part of the area needing to display the picture is not extended as in a normal state due to local expansion and deformation, so that part of the picture cannot be displayed. Based on this, in the embodiment of the present invention, a driving display module may be arranged, configured to perform picture driving display on the extended area of the sliding scroll screen according to the theoretical extension of the sliding scroll screen. In addition, a control module can be arranged to be electrically connected with the driving display module, and on the basis that the control module calculates and obtains the actual extending amount of the sliding scroll screen, the driving display of the picture is carried out according to the actual extending area. In other words, in the embodiment of the invention, the control module can be used for compensating the display picture of the sliding scroll screen with deformation, so that the condition that the picture actually displayed is incomplete due to the deformation is avoided.
The present invention provides a detailed embodiment for a specific roll display device, and the overall structure and operation of the roll display device are illustrated in detail below. Fig. 4 is a sectional view of the roll display device shown in fig. 1, fig. 5 is a schematic structural view of a contracted state of the roll display device shown in fig. 1, fig. 6 is a schematic structural view of the roll display device shown in fig. 1 in an expanded state, and referring to fig. 4 to 6, in the roll display device, a roll driving mechanism includes: a scrolling mechanism 21 connected to a side of the non-display part 11 away from the display part 12 for driving the non-display part 11 to curl and contract; the telescopic mechanism 22 is used for laying the roll screen 10 around the surface of the telescopic mechanism 22, the telescopic mechanism 22 can be stretched along the second direction 2, and the non-display part 11 drives the roll display part 122 to slide and bend on the surface of the telescopic mechanism 22 in the stretching process; wherein the second direction 2 is parallel to the first plane 100 and perpendicular to a connecting line of the display part 12 and the non-display part 11.
Wherein, the scrolling mechanism 21 may be provided to include at least one scrolling shaft 210 and at least one driving motor (not shown in the figure) corresponding to each other; the driving motor is electrically connected with the control module and used for driving the rolling shaft to roll by the set rolling shrinkage. The telescoping mechanism 22 may be configured to include a telescoping bracket 221, the telescoping bracket 221 including a first surface 201 and a second surface 202 facing away from each other, the first surface 201 and the second surface 202 being connected at a first end of the telescoping bracket 221 by an arcuate surface 203; the roll screen 10 is attached around the first surface 201, the arc surface 203 and the second surface 202 of the telescopic bracket 221; the fixed display part 121 is fixed on the first surface 201, and the telescopic bracket 221 can be telescopic along the second direction 2, so that the sliding and rolling display part 122 can slide and bend relatively on the surface of the telescopic bracket 221. In comparison with fig. 4-6, in the contracted state of the telescopic mechanism 22, the vertical projection of the sliding scroll display part 122 on the first plane 100 at least partially overlaps the fixed display part 121; in the extended state of the telescopic mechanism, the vertical projection of the slider display 122 on the first plane 100 does not overlap the fixed display 121.
The first surface 201 is a surface of the telescopic bracket 221 facing the light exit side, and a display surface is formed after a screen is displayed on the sliding scroll screen on the first surface 201. The first surface 201 can be understood as the front surface of the telescopic bracket 221, and correspondingly, the second surface 202 can be understood as the back surface of the telescopic bracket 221. The areas of the first surface 201 and the second surface 202 vary with the extension and retraction of the telescopic bracket 221. During the extension, the areas of the first surface 201 and the second surface 202 are gradually increased, and during the contraction, the areas of the first surface 201 and the second surface 202 are gradually decreased. For example, the telescopic bracket 221 may be provided to include a two-part structure separated from each other, and the two-part structure may be separated from each other, so that the entire telescopic bracket 221 may be telescopically deformed. In a contracted state, the two parts of the telescopic bracket 221 are close to each other, and the first surface 201 is smaller; in the extended state, the two parts of the telescopic bracket 221 are far apart, and the first surface 201 is larger. The fixed display part 121 is fixed on the first surface 201, that is, the first surface 201 is a display surface of the entire slide and scroll display device. By designing the arc-shaped surface 203 and the second surface 202, when the telescopic bracket 221 is contracted, the non-display part 11 and the sliding scroll display part 122 of the sliding scroll screen 10 are slid and extended to the second surface 202, so that the area of the sliding scroll screen 10 on the first surface 201 is changed. In this process, the slider display 122 extends onto the second surface 202. When the telescopic bracket 221 is extended, the sliding display part 122 of the sliding screen 10 is rolled to be flat on the first surface 201 together with the fixed display part 121, so that the display area on the first surface 201 is enlarged.
It is understood that the specific structure of the telescopic mechanism in the embodiment of the present invention may be designed by those skilled in the art according to the actual situation, and the structure of the telescopic bracket in the above embodiment is only an example. It should be noted that the telescopic mechanism needs to be designed to have a certain telescopic function and a certain telescopic deformation capability during the telescopic process. In addition, besides the telescopic function, a plane is also required to ensure the laying of the fixed display part. Simultaneously, still need set up specific structure of buckling, accomodate structure etc to the non-display portion of guaranteeing the smooth roll screen and the smooth roll display portion state change at flexible in-process, thereby make the display area on the display surface change.
Fig. 7 is a cross-sectional view of a part of the structure of a scrolling screen in a scrolling display device according to an embodiment of the present invention, and referring to fig. 7, optionally, a flexible printed circuit board 130 may be further disposed in the scrolling screen; the flexible display screen 110 further includes a step region 111, the step region 111 is provided with a bonding pad (not shown in the figure), and the flexible circuit board 130 is bonded to the bonding pad.
The flexible circuit board 130 is connected to a main board for driving display, and controls the flexible display screen 110 to display a picture by transmitting a driving display signal of the main board. The bonding pads provide driving signals, power signals, and the like to the respective pixel units through signal traces provided in the flexible display screen 110. Specifically, the step area 111 may be disposed on a side of the display portion away from the non-display portion, or on a side of the fixed display portion of the display portion away from the scrolling display portion. At this moment, the non-display portion drives the gliding in-process of buckling of the roll display portion, and flexible line way board 130 is located the one side of keeping away from, and the tensile force that can avoid the non-display portion is used in binding the pad to can guarantee the connection of flexible line way board and binding pad, avoid the risk of broken string.
Fig. 8 is a cross-sectional view of a partial structure of another sliding and rolling display device provided by an embodiment of the present invention, and referring to fig. 8, the sliding and rolling screen 10 in this embodiment may further include a transparent protective film 140, and the transparent protective film 140 is attached to a side of the supporting sheet 120 facing away from the flexible display screen 110. The transparent protective film 140 can ensure that the flexible display screen 110 on the support sheet 120 transmits light downward, and at the same time, can also protect the support sheet 120, prevent the support sheet 120 provided with the hollow patterns 1201 from generating a large friction force with the surface of the sliding and rolling driving mechanism 20, and ensure that the entire sliding and rolling screen smoothly curls and moves on the surface of the sliding and rolling driving mechanism 20.
Fig. 9 and 10 are schematic structural diagrams of the interior of two types of sliding roll display devices according to an embodiment of the present invention, and referring to fig. 1 to 4 and fig. 9 and 10, further alternatively, in an embodiment of the present invention, a light-transmitting window 200 may be disposed on the arc-shaped surface 203 or the second surface 202 of the telescopic bracket 221, and during the telescopic process of the sliding roll screen, at least a part of the hollow-out patterns 1201 sequentially pass through the light-transmitting window 200; the light detector 30 is disposed inside the telescopic bracket 221, and the detection direction of the light detector 30 faces the light-transmitting window 200 on the arc-shaped surface 203 or the second surface 202. At this time, the light detector 30 is disposed inside the telescopic bracket 221, and by disposing the transparent window 200 on the arc-shaped surface 203 and the second surface 202 of the telescopic bracket 221, the light of the area where the hollow pattern 1201 on the supporting sheet 120 is located can be obtained through the transparent window 200. The light-transmitting window 200 may be a window provided in the telescopic bracket 221, or may be a window having light-transmitting ability provided in the telescopic bracket 221. It can be understood that the arrangement of the window on the telescopic bracket 221 is easy to increase the frictional resistance with the sliding and rolling screen and also easy to scratch the sliding and rolling screen. The transparent window can ensure the smoothness of the surface of the telescopic part 221, and meanwhile, the light of the area where the hollow pattern 1201 on the supporting sheet 120 is collected by the optical detector 30 is not prevented.
Fig. 11 is a partial structure diagram of the inside of another sliding roll display device according to an embodiment of the present invention, and referring to fig. 4 and fig. 11, optionally, the sliding roll display device may further include a light source 40, where the light source 40 is configured to irradiate an area where the hollow pattern 1201 on the support sheet 120 is located. It can be understood that when the light detector 30 is used for collecting the reflected light on the supporting sheet 120, the light intensity of the area where the hollow pattern 1201 acquired by the light detector 30 is located is not significantly changed due to the dark internal light of the telescopic bracket 221. And through setting up light source 40, can provide the light source for light detector 30 to increase the difference of the light intensity of gathering, improve the computational accuracy of the roll screen actual amount of stretching out, also can carry out the compensation of flexible volume more accurately.
In addition, in this embodiment, the vertical projections of the light source and the light detector on the sliding scroll screen may be disposed in the non-display area of the sliding scroll display portion or the non-display portion. First, the sliding and rolling display part and the non-display part need to be bent, and therefore the support pieces in the sliding and rolling display part and the non-display part are provided with hollow patterns. In order to provide sufficient space inside the entire slider-roller driving mechanism for arranging other functional structures, the light source and the light detector may be disposed in the edge region, i.e., the non-display region of the slider-roller display portion and the non-display portion. Certainly, in consideration of accurate calculation of the actual extending amount of the sliding scroll screen, in the embodiment of the invention, a group of light source and light detector can be arranged in the non-display areas on two sides of the sliding scroll display part and the non-display part, and the accurate extending amount of the sliding scroll screen can be obtained according to the light intensity change obtained from the areas on the two sides, so that accidental errors and the like of the extending amount obtained by calculation on one side of the sliding scroll screen are avoided.
Fig. 12 is a partial structure diagram of the inside of another sliding scroll display device according to an embodiment of the present invention, and referring to fig. 12, an optional sliding scroll display device includes a plurality of optical detectors 30, the vertical projections of the plurality of optical detectors 30 on a sliding scroll screen are sequentially arranged along a first direction 1, and the plurality of optical detectors 30 are configured to collect light intensity changes of areas where the hollow patterns 1201 on different partitions of the support sheet 120 in the first direction 1 are located; the first direction 1 is parallel to the first plane and parallel to a connecting line between the display part and the non-display part. It should be noted that the arrangement of the light detectors 30 may not be limited to the uniform arrangement at equal intervals, and in other embodiments of the present invention, the light detectors 30 may also be adaptively arranged according to the distribution of the stress of the sliding rolling screen in the first direction 1 or the distribution of the deformation-prone regions, which is not limited herein.
Further, with continued reference to fig. 12, a control module (not shown) may be provided in electrical communication with each of the light detectors 30; the control module is used for determining the actual extension amount of different partitions of the sliding and rolling screen in the first direction 1 according to the light intensity change of the area where the hollow-out pattern 2201 acquired by the light detector 30 is located, and calculating the deformation amount of different partitions of the sliding and rolling screen in the first direction 1 by comparing the theoretical extension amount; and the controller is also used for controlling the sliding and rolling driving mechanism to compensate the curling shrinkage of the sliding and rolling screen according to the average deformation of different subareas of the sliding and rolling screen in the first direction 1.
The division of the support sheet 120 in the first direction 1 represents the division of the scrolling screen in the first direction 1. Since the plurality of sections of the sliding screen may be deformed differently in the first direction 1, the actual extension amounts of the different sections may differ when the sliding screen is extended. In this embodiment, the deformation of each partition can be accurately calculated by the plurality of optical detectors 30, and the average compensation principle can be adopted for different deformations of each partition, so that the average deformation of different partitions compensates the curling shrinkage of the entire sliding and rolling screen, and at this time, each partition can obtain appropriate shrinkage compensation, thereby ensuring the flat, tight and taut state of the entire sliding and rolling screen.
In another embodiment of the present invention, the sliding scroll display device can be further configured to have the capability of performing corresponding compensation for different partitions. Fig. 13 is a partial internal structure diagram of another sliding roll display device according to an embodiment of the present invention, and referring to fig. 13, alternatively, on the basis that the sliding roll display device includes a plurality of optical detectors 30, the sliding roll driving mechanism 20 may further include a plurality of sub-sliding roll driving mechanisms 211 sequentially arranged along the first direction 1; the control module is electrically connected to the plurality of sub-roll driving mechanisms 211, respectively. The control module (not shown in the figure) is used for determining the actual extension amount of the sliding scroll screen in different partitions in the first direction 1 according to the light intensity change of the region where the hollow pattern 1201 acquired by the light detector 30 is located, and calculating the deformation amount of the sliding scroll screen in different partitions in the first direction 1 by comparing with the theoretical extension amount; and is further configured to control the plurality of sub-roll driving mechanisms 211 to compensate the amount of curling shrinkage of the different sections of the roll screen in the first direction 1 according to the deformation amount of the different sections of the roll screen in the first direction 1.
It should be noted that the structure of the sliding-winding driving mechanism and the sub-sliding-winding driving mechanism shown in fig. 12 and 13, which use the winding shaft, is only an example of the present invention, and it is necessary to provide a driving motor to drive and rotate correspondingly, so as to drive the sliding-winding screen to perform the winding and shrinking. Of course, those skilled in the art may also use other devices or structures to achieve the retraction of the sliding rolling screen, and no limitation is made herein.
In addition, as shown in fig. 12 and 13, the roll display device includes a plurality of light sources 40, and the plurality of light sources 40 are disposed corresponding to the plurality of light detectors 30; the plurality of light sources 40 are used for irradiating the areas where the hollow patterns 1201 on different sections of the support sheet 120 in the first direction 1 are located. The arrangement of the light source 40 corresponding to the light detectors 30 means that each light detector 30 is correspondingly provided with one light source 40, and the light sources 40 illuminate the detection regions of the corresponding light detectors 30, so that the light intensity collected by the light detectors 30 has obvious brightness change, the control module is ensured to accurately calculate and obtain the actual extending amount of the sliding scroll screen in different partitions in the first direction, and the difference of the actual extending amount among the partitions is obtained, thereby realizing corresponding accurate compensation.
Fig. 14 is a partial structure diagram of the inside of another slider display device according to an embodiment of the present invention, and referring to fig. 14, optionally, on the basis that a plurality of light detectors 30 are disposed in the slider display device, the slider display device may further include a bar-type light source 41, the bar-type light source 41 extends along the first direction 1, and the vertical projection on the slider screen 10 covers different partitions of the supporting sheet 120 in the first direction 1. At this time, the strip light source 41 can provide light to the hollow patterns 1201 on the support sheet 120 synchronously, so that the difference of the light intensity collected by the light detector 30 caused by the difference of the light source 41 is avoided, and the influence of the difference of the light source 41 on the actual extension accuracy of different partitions of the sliding scroll screen can be prevented.
Fig. 15 and 16 are schematic structural diagrams of two support sheets according to an embodiment of the present invention, and referring to fig. 15 and 16, in an embodiment of the present invention, a plurality of hollow patterns 1201 may be uniformly arranged, or the arrangement density of the plurality of hollow patterns 1201 sequentially increases or decreases along a direction from the non-display portion 11 to the display portion 12.
As shown in fig. 15 and fig. 16, the supporting sheet 120 has different structures, and when the optical detector detects and calculates the actual extension amount of the sliding scroll screen, the design needs to be performed according to the calculation principle of the movement condition of the hollow pattern 1201 during the movement of the supporting sheet 120. Taking the light intensity of the reflected light in the region where the light detector collects the hollow-out patterns 1201 as an example, it can be understood that the hollow-out patterns 1201 sequentially and uniformly appear in the detection region of the light detector in the support sheet structure shown in fig. 15, thereby causing the light intensity collected by the light detector to have obvious light and shade changes, and according to the times or rate of the light and shade changes, the moving rate of the hollow-out patterns 1201 can be converted, that is, the moving position of the support sheet 120 can be calculated, and accordingly, the actual extension amount of the roll screen can be obtained. However, as the interval of the hollow patterns 1201 in the second direction 2 is gradually increased, that is, the arrangement density of the hollow patterns 1201 is gradually increased, and the reflection capability of the light in the second direction 2 is gradually increased, that is, the light intensity change of the light detector in the collection detection region is gradually increased, the support sheet 120 shown in fig. 16 can convert the variation curve of the light intensity to obtain the reflectivity of the region where the hollow patterns 1201 are located, in other words, the arrangement density of the hollow patterns 1201 can be obtained. On the premise that the arrangement density of the hollow patterns on the support sheet 120 is known, the position of the support sheet corresponding to the current detection area of the optical detector can be obtained, and therefore the actual extending amount of the sliding scroll screen can be obtained. It can be understood that the actual extension amount of the sliding and rolling screen can be obtained through different support sheet designs and corresponding calculation principles, and then the rolling and rolling screen can be curled, contracted and compensated according to the theoretical extension amount, so that the sliding and rolling screen is ensured to be in a flat and tight state.
It should be noted that the arrangement, shape, size and the like of the hollow patterns shown in fig. 15 and fig. 16 are examples of the present invention, it can be understood that the shape of the hollow patterns may not be limited to the shape of circle, ellipse, polygon and the like, and the arrangement may not be limited to the line-by-line staggered arrangement shown in fig. 15 or the array arrangement shown in fig. 16, and a person skilled in the art may design the hollow patterns according to the bending effect of the support sheet and the light transmitting effect or the light reflecting effect, and the present invention is not limited herein.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (14)
1. A scrolling display device, comprising:
the sliding and rolling screen comprises a non-display part and a display part, wherein the display part comprises a fixed display part and a sliding and rolling display part which are connected with each other, and the fixed display part is fixed on a first plane for displaying; the non-display part is connected with one side of the sliding and rolling display part, which is far away from the fixed display part;
the sliding and rolling screen further comprises a flexible display screen and a supporting sheet which are arranged in a stacked mode, and the supporting sheet is located on one side, away from the light emitting side, of the flexible display screen; a plurality of hollow patterns are arranged on the supporting sheet;
the sliding and rolling driving mechanism is used for driving the sliding and rolling display part to slide and bend in the telescopic process, and the sliding and rolling display part is in a curling and shrinking state in the shrinking state of the sliding and rolling driving mechanism; under the extension state of the sliding roll driving mechanism, at least partial area of the sliding roll display part extends out and is in a flat state;
the optical detector is used for collecting the light intensity change of the area where the hollow pattern is located on the supporting sheet;
the control module is respectively electrically connected with the optical detector and the sliding roll driving mechanism and is used for determining the actual extension amount of the sliding roll screen according to the light intensity change of the area where the hollow pattern is collected by the optical detector and calculating the deformation amount of the sliding roll screen by comparing the theoretical extension amount; the device is also used for controlling the sliding and rolling driving mechanism to compensate the curling shrinkage amount of the sliding and rolling screen according to the deformation amount of the sliding and rolling screen so as to wind the redundant extending amount of the sliding and rolling screen caused by deformation by using the sliding and rolling driving mechanism.
2. The sliding roll display device according to claim 1, further comprising a light source for illuminating an area of the support sheet where the hollow pattern is located.
3. The scrolling display device of claim 2, wherein the vertical projection of the light source and the light detector on the scrolling screen are located in a non-display region of the scrolling display or the non-display.
4. The roll-sliding display device according to claim 1, wherein the roll-sliding display device comprises a plurality of light detectors, vertical projections of the light detectors on the roll-sliding screen are sequentially arranged along a first direction, and the light detectors are used for collecting light intensity changes of areas where the hollow patterns on the support sheet are located on different partitions in the first direction; wherein the first direction is parallel to the first plane and parallel to a connection line of the display part and the non-display part.
5. The scrolling display device of claim 4, further comprising a plurality of light sources disposed in correspondence with said plurality of light detectors; the plurality of light sources are used for irradiating the areas where the hollow patterns on the support sheet on the different partitions in the first direction are located;
or the sliding scroll display device further comprises a strip-shaped light source, the strip-shaped light source extends along the first direction, and the vertical projection on the sliding scroll screen covers different partitions of the supporting sheet in the first direction.
6. The scrolling display device of claim 4, wherein said control module is electrically connected to each of said light detectors;
the control module is used for determining the actual extension amount of the sliding scroll screen in different partitions in the first direction according to the light intensity change of the area where the hollow pattern is acquired by the light detector, and calculating the deformation amount of the sliding scroll screen in different partitions in the first direction by comparing the theoretical extension amount; the device is also used for controlling the sliding and rolling driving mechanism to compensate the curling shrinkage of the sliding and rolling screen according to the average deformation of different partitions of the sliding and rolling screen in the first direction.
7. The slider-roll display device according to claim 4, wherein the slider-roll driving mechanism includes a plurality of sub slider-roll driving mechanisms arranged in sequence along the first direction; the control module is electrically connected with the plurality of sub-sliding roll driving mechanisms respectively;
the control module is used for determining the actual extension amount of the sliding scroll screen in different partitions in the first direction according to the light intensity change of the area where the hollow pattern is acquired by the light detector, and calculating the deformation amount of the sliding scroll screen in different partitions in the first direction by comparing the theoretical extension amount; the plurality of sub sliding and rolling driving mechanisms are further used for controlling the plurality of sub sliding and rolling driving mechanisms to compensate the curling shrinkage of the sliding and rolling screen in different partitions in the first direction according to the deformation of the sliding and rolling screen in different partitions in the first direction.
8. The sliding roll display device according to claim 1, wherein the plurality of hollow patterns are uniformly arranged, or the arrangement density of the plurality of hollow patterns is sequentially increased or decreased in a direction from the non-display portion toward the display portion.
9. The slider roll display device of claim 1, wherein the slider roll drive mechanism comprises:
the rolling mechanism is connected with one side of the non-display part, which is far away from the display part, and is used for driving the non-display part to curl and contract;
the sliding and rolling screen is laid around the surface of the telescopic mechanism, the telescopic mechanism can stretch and retract along a second direction, and the non-display part drives the sliding and rolling display part to slide and bend on the surface of the telescopic mechanism in the stretching process; wherein the second direction is parallel to the first plane and perpendicular to a connection line of the display part and the non-display part.
10. The slider-roll display device of claim 9, wherein the telescoping mechanism comprises a telescoping bracket comprising a first surface and a second surface facing away from each other, the first surface and the second surface being connected by an arcuate surface at a first end of the telescoping bracket;
the sliding rolling screen is attached to the first surface, the arc-shaped surface and the second surface of the telescopic bracket in a surrounding mode; the fixed display part is fixed on the first surface, and the telescopic bracket can be stretched and retracted along the second direction, so that the sliding and rolling display part can relatively slide and bend on the surface of the telescopic bracket.
11. The sliding roll display device according to claim 10, wherein a light-transmitting window is arranged on the arc surface or the second surface of the telescopic bracket, and at least part of the hollow patterns sequentially pass through the light-transmitting window in the telescopic process of the sliding roll screen;
the optical detector is arranged in the telescopic support, and the detection direction of the optical detector faces the arc-shaped surface or the light-transmitting window on the second surface.
12. The scrolling display device of claim 9, wherein said scrolling mechanism comprises at least one scrolling shaft and at least one driving motor corresponding to each other;
the driving motor is electrically connected with the control module and is used for driving the coiling shaft to coil by a set coiling contraction amount.
13. The slider-roll display device according to claim 1, wherein the slider-roll screen further comprises a transparent protective film attached to a side of the support sheet facing away from the flexible display screen.
14. The slider-roll display device according to claim 1, wherein the slider-roll screen further comprises a flexible wiring board;
the flexible display screen further comprises a step area, the step area is provided with a binding pad, and the flexible circuit board is bound on the binding pad.
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| CN113593411B (en) * | 2021-07-30 | 2023-08-29 | 京东方科技集团股份有限公司 | display device |
| CN113990194B (en) * | 2021-10-29 | 2023-11-10 | 京东方科技集团股份有限公司 | Display module and vehicle-mounted display device |
| CN116802715A (en) * | 2021-11-26 | 2023-09-22 | 京东方科技集团股份有限公司 | Display device and control method thereof |
| CN117377994A (en) * | 2022-03-23 | 2024-01-09 | 京东方科技集团股份有限公司 | Slide roll display device and display system |
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| DE2628886A1 (en) * | 1976-06-26 | 1978-01-05 | Mekania Verken Ab | PROJECTION WALL |
| EP1654587A1 (en) * | 2003-08-08 | 2006-05-10 | Koninklijke Philips Electronics N.V. | Bi-stable display |
| CN101761735A (en) * | 2008-12-23 | 2010-06-30 | 鸿富锦精密工业（深圳）有限公司 | Lifting mechanism |
| US9204133B2 (en) * | 2009-12-04 | 2015-12-01 | Nlt Technologies, Ltd. | Stereoscopic display device, method for generating image data for stereoscopic display, and program therefor |
| CN203721163U (en) * | 2014-02-28 | 2014-07-16 | 京东方科技集团股份有限公司 | Flexible display apparatus |
| KR102311741B1 (en) * | 2015-01-14 | 2021-10-12 | 삼성디스플레이 주식회사 | Head mounted display apparatus |
| KR20170020998A (en) * | 2015-08-17 | 2017-02-27 | 엘지전자 주식회사 | Wearable device and, the method thereof |
| EP3540714A1 (en) * | 2016-11-09 | 2019-09-18 | Shenzhen Royole Technologies Co., Ltd. | Flexible display and extension detection method |
| CN107742478B (en) * | 2017-11-30 | 2020-04-24 | 武汉天马微电子有限公司 | Flexible display device |
| US10788861B2 (en) * | 2018-03-28 | 2020-09-29 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Flexible display device and deformation compensation method of flexible display screen |
| CN109753182B (en) * | 2018-12-29 | 2022-03-15 | 厦门天马微电子有限公司 | Touch display panel and touch display device |
| WO2020159095A1 (en) * | 2019-01-31 | 2020-08-06 | Lg Electronics Inc. | Flexible display device |
| CN110098248B (en) * | 2019-06-04 | 2021-05-04 | 上海天马微电子有限公司 | Flexible display panel, preparation method thereof and display device |
| CN209912403U (en) * | 2019-06-13 | 2020-01-07 | 京东方科技集团股份有限公司 | Display panel and flexible display device |
| CN111145648A (en) * | 2019-12-31 | 2020-05-12 | 武汉天马微电子有限公司 | Flexible screen display module, display device and control method |
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