CN115019635A - Folding electronic equipment - Google Patents
Folding electronic equipment Download PDFInfo
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- CN115019635A CN115019635A CN202111165036.1A CN202111165036A CN115019635A CN 115019635 A CN115019635 A CN 115019635A CN 202111165036 A CN202111165036 A CN 202111165036A CN 115019635 A CN115019635 A CN 115019635A
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- screen
- display
- signal line
- foldable electronic
- electronic device
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Images
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2380/00—Specific applications
- G09G2380/02—Flexible displays
Abstract
The application relates to a foldable electronic device, which comprises a bendable display screen assembly and a driving chip, wherein the display screen assembly comprises an inner screen, at least one outer screen and a first bendable part for connecting the inner screen and the outer screen, and the outer screen can be bent at the back of the inner screen; the driving chip is arranged at one end of the display screen component along the width direction of the foldable electronic equipment and comprises signal wires, and at least part of the signal wires extend along the width direction of the foldable electronic equipment and penetrate through the inner screen, the first bendable part and the outer screen; the signal line includes a first portion passing through the inner screen, a second portion passing through the outer screen, and a third portion passing through the first bendable portion, a perimeter of the third portion being greater than a width of the first bendable portion. The signal line passes through interior screen, but first kink and outer screen, can simplify the signal line at the inside arrangement of display screen subassembly. The perimeter of the third part is larger than the width of the first bendable part, so that the stretching of the signal wire during bending can be reduced, and the risk of breaking the signal wire is reduced.
Description
Technical Field
The application relates to the technical field of electronic products, in particular to a foldable electronic device.
Background
With the demand of people increasing, foldable electronic devices are getting more and more concerned and favored by people. However, the conventional foldable electronic device generally includes an outer screen and an inner screen, and the outer screen is located on the back of the inner screen and attached to a middle frame on one side to function as a rear cover. The inner screen and the outer screen are two independent screens, and both have independent driving systems and device areas, so that the foldable electronic equipment has more parts, more complex structure and higher cost.
Disclosure of Invention
The application provides a collapsible electronic equipment, interior screen and outer screen sharing a driver chip, can simplify wiring structure to reduction in production cost.
The application provides a foldable electronic device, which comprises a bendable display screen assembly and a driving chip, wherein the display screen assembly comprises an inner screen, at least one outer screen and a first bendable part for connecting the inner screen and the outer screen, and the outer screen can be bent at the back of the inner screen;
the driving chip is arranged at one end of the display screen assembly along the width direction of the foldable electronic equipment, the driving chip comprises signal lines, and at least part of the signal lines extend along the width direction of the foldable electronic equipment and penetrate through the inner screen, the first bendable part and the outer screen;
the signal line comprises a first part passing through the inner screen, a second part passing through the outer screen and a third part passing through the first bendable part, and the perimeter of the third part is larger than the width of the first bendable part.
In this scheme, but signal line passes interior screen, first kink and outer screen for interior screen and outer screen can share a driver chip, and are favorable to simplifying the signal line at the inside arrangement of display screen subassembly, and then improve production efficiency, reduction in production cost. Meanwhile, the circumference of the third part of the signal wire is larger than the width of the first bendable part, when the first bendable part is bent, the third part has enough allowance to bend the signal wire, so that the stretching of the signal wire during bending can be reduced, and the risk of breaking the signal wire is reduced.
In one possible design, the display screen assembly includes a substrate base plate and a protective layer along a thickness direction of the foldable electronic device, and the signal line is located between the substrate base plate and the protective layer and is recessed toward a direction of the substrate base plate to form the third portion.
In this scheme, the signal line is located between substrate base plate and the protective layer, the display screen subassembly only includes third substrate base plate and third protective layer at first bendable portion, outer shield region still is provided with other layers between second substrate base plate and second protective layer, inner shield region still is provided with other layers between first substrate base plate and first protective layer, therefore, the signal line that is located first bendable portion can buckle between third substrate base plate and third protective layer, the third part is sunken in order to form the third part of signal line towards the direction of substrate base plate in this embodiment, the girth through sunken third part is greater than the width that first bendable portion, consequently, the girth that this design can realize the third part is greater than the width that first bendable portion, and the design is simple easily to realize.
In one possible design, the inner panel and the outer panel further include a display layer between the substrate base plate and the protective layer, and the first portion and the second portion are interpenetrated in the display layer.
In this scheme, the first portion and the second portion of the signal line are inserted in the first display layer and the second display layer, and the first bendable portion does not include the display layer, that is, the display layer is disconnected in the first bendable portion region, so that the signal line is located between the third substrate and the third protective layer in the first bendable portion region. To illustrate that the signal lines extend through the display assembly from the inner panel to the outer panel, the third portion may continue along the sidewall where the inner panel display layer is broken to contact the third substrate, then extend along the sidewall where the outer panel display layer is broken to between the second display layers and continue to the outer edge of the outer panel. The first bendable part does not comprise a display layer, so that the first bendable part area has enough space to accommodate the bent signal line, and the structure is simple and easy to realize.
In one possible design, the protection layer includes a protruding portion, and the protruding portion is filled in the third portion.
In this scheme, bellying and third protective layer formula structure as an organic whole, the third part of signal line is sunken towards the direction of substrate base plate, and the bellying can fill sunken, and the swing of restriction signal line improves the connection stability of signal line, guarantees the stable transmission signal of signal line.
In another possible design, a filler block is provided between the protective layer and the third portion.
In this scheme, the structure size of first protective layer, second protective layer and third protective layer is the same, and in first bendable region, then certain clearance has between third protective layer and the third substrate base plate, and the filling block is used for filling this clearance, plays the fixed action to the signal line to the swing of restriction signal line improves the connection stability of signal line, guarantees the stable transmission signal of signal line. The design can simplify the structure of the protective layer and simplify the processing technology.
In one possible design, the third portion includes a side edge and a bottom edge, and the included angle between the side edge and the bottom edge is an obtuse angle.
In this scheme, the third portion sunken towards the substrate base plate includes side and base, and the contained angle alpha on side and base is the obtuse angle, can reduce the degree of buckling of signal line, reduces the too big risk of being broken of signal line degree of buckling.
In one possible design, the signal lines include data driving signal lines and gate driving signal lines, and the data driving signal lines pass through the inner screen, the first bendable portion, and the outer screen along a width direction of the foldable electronic device.
In order to further simplify the arrangement of the signal lines, the data driving signal lines are passed through the inner screen, the first bendable portion, and the outer screen in the width direction of the foldable electronic device in this example. But the data drive signal line passes interior screen, first kink and outer screen along collapsible electronic equipment's width direction for outer screen and interior screen realize being connected with drive chip respectively through same data drive signal line and are connected, conveniently control the demonstration of outer screen and interior screen through same drive chip. Therefore, the data driving signal line penetrates through the inner screen, the first bending part and the outer screen, so that the connection mode of the driving chip and the inner screen and the connection mode of the driving chip and the outer screen can be simplified, and the arrangement of the driving chip is reduced.
In one possible design, the gate driving signal lines include a first gate driving signal line and a second gate driving signal line, the first gate driving signal line is disposed on one side or two sides of the inner screen along the length direction of the foldable electronic device, and the first gate driving signal line is used for controlling the inner screen to display or not to display; the second grid driving signal line is arranged on one side or two sides of the display screen assembly along the length direction of the foldable electronic equipment and is used for controlling the outer screen to display or not to display.
In this scheme, one side of interior screen can be located to first grid drive signal line, and one side of outer screen is located to second grid drive signal line, and the screen or the outer screen display shows in the grid drive signal line can only unilateral drive this moment, and unilateral drive can reduce the setting of grid drive signal line. The first grid driving signal line can also be arranged on two sides of the inner screen, the second grid driving signal line is also arranged on two sides of the outer screen, and at the moment, the grid driving signal line can drive the inner screen or the outer screen to display simultaneously on two sides, or the two sides of the grid driving signal line drive the inner screen or the outer screen to display alternately. The bilateral simultaneous driving or bilateral alternate driving can shorten the response time of the display of the inner screen and the outer screen and reduce the display ghost effect.
In one possible design, the first gate driving signal line and the second gate driving signal line can control the inner screen and the outer screen to display independently or simultaneously.
In this scheme, the main board of the foldable electronic device can send an instruction to the first gate driving line through the driving chip so that the inner screen area controlled by the first gate driving signal line is electrified, and meanwhile, the data driving signal line electrically connected with the first gate driving signal line controls the inner screen to display. The main board of the foldable electronic device can also send an instruction to the second gate driving signal line through the driving chip so that the outer screen area controlled by the second gate driving signal line is electrified, and meanwhile, the data driving signal line electrically connected with the second gate driving signal line controls the outer screen area to display. The operation can realize independent display of the inner screen and the outer screen. The judgement condition of interior screen and outer screen independent display can set up to the opening angle of interior screen, controls interior screen according to the opening angle of interior screen promptly and is used for showing or the outer screen is used for showing, and when the opening angle of interior screen was 180, the mainboard was used for showing to drive chip send instruction control interior screen, and when the opening angle of interior screen was less than 180, the mainboard was used for showing to drive chip send instruction control outer screen. The mainboard of the foldable electronic equipment can also send instructions to the first grid driving signal line and the second grid driving signal line through the driving chip simultaneously, so that an inner screen area controlled by the first grid driving signal line and an outer screen area controlled by the second grid driving signal line are electrified, and meanwhile, the data driving signal line electrically connected with the first grid driving signal line and the second grid driving signal line controls the inner screen and the outer screen to display, namely, the inner screen and the outer screen are displayed simultaneously.
In another possible design, the inner screen is connected with N outer screens, the signal lines include N + gate driving signal lines connected with the inner screen and the N outer screens, and each gate driving signal line controls the corresponding inner screen and the corresponding outer screen to display or not to display.
In this scheme, but data driving signal line passes interior screen, a N outer screen and interior screen and outer screen between a N first kink, therefore the mainboard passes through driver chip and sends the instruction to a N + a grid driving signal line respectively, and the data driving signal line that is connected with a N + a grid driving signal line electricity simultaneously can control interior screen, a N outer screen respectively and show or do not show.
In yet another possible design, the outer screen and the inner screen have different dimensions along the length direction.
In this scheme, along collapsible electronic equipment's length direction, the size of outer screen is different with the size of interior screen, can make special-shaped screen with outer screen and interior screen promptly, practices thrift the material that uses of display screen subassembly, and reduce cost satisfies customer's different demands.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
FIG. 1 is a schematic structural diagram of a foldable electronic device provided herein in one embodiment;
FIG. 2 is a schematic diagram of an internal structure of the foldable electronic device in FIG. 1 in one embodiment;
FIG. 3 is a cross-sectional view of the display screen assembly of FIG. 2 taken along the line A-A in one embodiment;
FIG. 4 is a schematic view of the bendable region of FIG. 3 with dimensions marked;
FIG. 5 is a cross-sectional view of the display screen assembly of FIG. 2 taken along the line A-A in another embodiment;
FIG. 6 is a schematic structural diagram of a foldable electronic device provided herein in another embodiment;
fig. 7 is a schematic structural diagram of a foldable electronic device provided in the present application in yet another embodiment.
Reference numerals:
1-a display screen assembly;
11-inner screen;
111-a first substrate base plate;
112-a first protective layer;
113-a first display layer;
114-a body portion;
115-an extension;
116-a second bendable portion;
12-outer screen;
121-a second substrate base;
122-a second protective layer;
123-a second display layer;
13-a first bendable portion;
131-a third substrate base;
132-a third protective layer;
132 a-a boss;
132 b-a filler block;
2, driving a chip;
21-a signal line;
211-data driving signal lines;
211 a-a first portion;
211 b-second portion;
211 c-a third portion;
211c 1-lateral;
211c 2-bottom edge;
212-first gate drive signal line;
213-second gate drive signal line;
3-a flexible circuit board;
4-rear cover;
c-perimeter;
s-width of the first bendable portion;
the angle alpha-is included.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
The embodiment of the present application provides a foldable electronic device, and the embodiment of the present application provides an electronic device as shown in fig. 1, where the foldable electronic device includes any device with a foldable screen function, such as a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), a notebook computer, an in-vehicle computer, a foldable display device, a foldable display screen, and a wearable device. In the embodiment of the present application, a specific form of the foldable electronic device is not particularly limited, and for convenience of description, the foldable electronic device is taken as a mobile phone for example, and the electronic device of the present application is described in the following with a specific embodiment.
To describe the foldable electronic device more clearly in the present application, the width direction of the foldable electronic device is defined as W, the length direction of the foldable electronic device is defined as L, and the thickness direction of the foldable electronic device is defined as H. Meanwhile, the width direction W, the length direction L, and the thickness direction H of the foldable electronic device described above all refer to directions when the foldable electronic device is in an unfolded state.
As shown in fig. 1, the foldable electronic device includes a bendable display screen assembly 1, the display screen assembly 1 includes an inner screen 11, at least one outer screen 12, and a first bendable portion 13 connecting the inner screen 11 and the outer screen 12, and the outer screen 12 can be bent at the back of the inner screen 11; as shown in fig. 2, the foldable electronic device further includes a driving chip 2, the driving chip 2 is disposed at one end of the display screen assembly 1 along a width direction of the foldable electronic device, the driving chip 2 includes signal lines 21, at least a portion of the signal lines 21 extends along the width direction of the foldable electronic device and passes through the inner screen 11, the outer screen 12 and the first bendable portion 13; as shown in fig. 3 and 4, the signal line 21 includes a first portion 211a passing through the inner panel 11, a second portion 211b passing through the outer panel 12, and a third portion 211C passing through the first bendable portion 13, and a perimeter C of the third portion 211C is greater than a width of the first bendable portion 13.
The foldable electronic equipment further comprises a rear cover 4, the rear cover 4 can improve the sealing performance of the foldable electronic equipment, the risk that moisture, dust and the like enter the foldable electronic equipment is reduced, and the use safety and the service life of the foldable electronic equipment are improved.
It should be noted that, when display screen subassembly 1 includes interior screen 11 and a plurality of outer screen 12, but interior screen 11 and outer screen 12 are connected through first kink 13 between, and a plurality of outer screen 12 can locate interior screen 11 with one side or both sides, and when a plurality of outer screen 12 located interior screen 11 with one side, but outer screen 12 and interior screen 11 are connected through first kink 13 between, but outer screen 12 and outer screen 12 are connected through first kink 13 equally between. The following is only described in detail for the case where the foldable electronic device comprises one outer screen 12.
The inner panel 11 itself can be bent so that the inner panel 11 has both a folded or unfolded state. The outer screen 12 is bent at the back of the inner screen 11 through the first bendable part 13, when the inner screen 11 is folded, the size of the foldable electronic equipment can be reduced, the foldable electronic equipment is convenient to store and carry, and the outer screen 12 at the back of the inner screen 11 can be used for displaying images or video information and the like, so that the use of a user is met; when the inner screen 11 is unfolded, the display area of the inner screen 11 is larger than that of the outer screen 12, so that images or video information and the like can be displayed by the inner screen 11, and the viewing experience of a user is enhanced.
It should be noted that, along the width direction of the foldable electronic device, the driving chip 2 is disposed at one end of the display screen assembly 1, and when the driving chip 2 is disposed at one end of the inner screen 11, the sequence of the signal lines 21 is as follows: sequentially penetrates through the inner screen 11, the first bendable part 13 and the outer screen 12; when the driving chip 2 is disposed at one end of the outer panel 12, the signal lines 21 pass through in the following order: sequentially passes through the outer screen 12, the first bendable part 13 and the inner screen 11.
As shown in fig. 2, the portion of the signal line 21 passing through the inner panel 11 is defined as a first portion 211a, the portion of the signal line 21 passing through the outer panel 12 is defined as a second portion 211b, and the portion of the signal line 21 passing through the first bendable portion 13 is defined as a third portion 211C, as shown in fig. 4, a perimeter C of the third portion 211C is a sum of lengths C1 and C2 of two side edges 211C1 and a length C3 of a bottom edge 211C2, and a width of the first bendable portion 13 is defined as S.
As shown in fig. 2, the signal lines 21 led out from the driving chip 2 generally include data driving signal lines 211 and gate driving signal lines, and at least a portion of the signal lines 21 passes through the inner panel 11, the first bendable portion 13 and the outer panel 12, which means that one of the gate driving signal lines and the data driving signal lines 211 passes through the inner panel 11, the first bendable portion 13 and the outer panel 12 along the width direction of the foldable electronic device. The signal line 21 passes through the inner screen 11, the first bending part 13 and the outer screen 12, so that the inner screen 11 and the outer screen 12 can share one driving chip 2, and the arrangement mode of the signal line 21 in the display screen assembly 1 is simplified, thereby improving the production efficiency and reducing the production cost.
Describing in detail the specific arrangement of the signal lines 21 in the display panel assembly 1, along the thickness direction of the foldable electronic device, as shown in fig. 3 and 5, the display panel assembly 1 includes a substrate and a protective layer, and the signal lines 21 are located between the substrate and the protective layer and are recessed toward the substrate to form a third portion 211 c.
As shown in fig. 3 and 5, the substrate base includes a first substrate base 111 in the inner panel 11 region, a second substrate base 121 in the outer panel 12 region, and a third substrate base 131 in the bendable region. Similarly, the passivation layer includes a first passivation layer 112 in the region of the inner panel 11, a second passivation layer 122 in the region of the outer panel 12, and a third passivation layer 132 in the region of the bendable portion.
In the present embodiment, the signal lines 21 are located between the substrate and the protection layer, the display panel assembly 1 only includes the third substrate 131 and the third protection layer 132 in the first bendable portion 13, the other layers are further disposed between the second substrate 121 and the second protection layer 122 in the outer panel 12 region, the other layers are further disposed between the first substrate 111 and the first protection layer 112 in the inner panel 11 region, therefore, the signal line 21 located at the first bendable portion 13 can be bent between the third substrate 131 and the third passivation layer 132, the third portion 211C is recessed toward the substrate to form the third portion 211C of the signal line 21, the perimeter C of the recessed third portion 211C is larger than the width of the first bendable portion 13, this design can therefore achieve a larger circumference C of the third portion 211C than the width of the first bendable portion 13, and the design is simple and easy to implement.
Specifically, as shown in fig. 3 and 5, the inner panel 11 and the outer panel 12 further include a display layer between the substrate base plate and the protective layer, and the first portion 211a and the second portion 211b are inserted in the display layer.
As shown in fig. 3 and 5, the display layers include a first display layer 113 in the area of the inner screen 11 and a second display layer 123 in the area of the outer screen 12.
In this embodiment, the first portion 211a and the second portion 211b of the signal line 21 are inserted in the first display layer 113 and the second display layer 123, and the first bendable portion 13 does not include a display layer, that is, the display layer is broken in the area of the first bendable portion 13, so that the signal line 21 is located between the third substrate 131 and the third passivation layer 132 in the area of the first bendable portion 13. Taking the example of the signal line 21 extending from the inner panel 11 to the outer panel 12 through the display panel assembly 1, the third portion 211c may continue along the sidewall of the display layer break of the inner panel 11 to contact the third substrate 131, and then along the sidewall of the display layer break of the outer panel 12 to between the second display layers 123 and continue until the outer edge of the outer panel 12. The first bendable part 13 does not include a display layer, so that the first bendable part 13 region has enough space to accommodate the bent signal line 21, and the structure is simple and easy to implement. The display layer generally includes a pixel unit composed of an anode layer, an organic material functional layer, and a cathode layer, and the first bendable part 13 does not include the display layer, so the first bendable part 13 cannot be used to display a picture.
Of course, the first bendable portion 13 may also be shown, that is, the pixel unit composed of the anode layer, the organic material functional layer and the cathode layer is also included at the position of the first bendable portion 13.
The substrate includes a substrate and an organic Film or an inorganic Film deposited on the substrate, the substrate may be organic glass, resin, quartz, metal, etc., Polyimide (PI) is commonly used at present, and the organic Film or the inorganic Film deposited on the substrate may be a Thin Film Transistor (TFT). The protection layer is generally a planarization layer (PLN layer), and the protection layer may be made of acrylic material. The display layer is located between the substrate base plate and the protective layer, and the protective layer covers the display layer and plays a role in insulating and sealing the display layer.
In one embodiment, as shown in fig. 3, the third passivation layer 132 includes a protrusion 132a, and the protrusion 132a is filled in the third portion 211 c.
In this embodiment, the protruding portion 132a and the third protective layer 132 are integrated, the third portion 211c of the signal line 21 is recessed toward the substrate, and the protruding portion 132a can fill the recess to limit the swing of the signal line 21, thereby improving the connection stability of the signal line 21 and ensuring stable signal transmission of the signal line 21.
In another embodiment, as shown in fig. 5, a filling block 132b is disposed between the third protective layer 132 and the third portion 211 c.
In this embodiment, the first passivation layer 112, the second passivation layer 122 and the third passivation layer 132 have the same structural size, a certain gap is formed between the third passivation layer 132 and the third substrate 131 in the first bendable portion 13, and the filling block 132b is used for filling the gap to fix the signal line 21, so as to limit the swing of the signal line 21, improve the connection stability of the signal line 21, and ensure stable signal transmission of the signal line 21. The design can simplify the structure of the protective layer and simplify the processing technology.
Specifically, as shown in fig. 3 and 4, the third portion 211c includes a side edge 211c1 and a bottom edge 211c2, and the included angle α between the side edge 211c1 and the bottom edge 211c2 is an obtuse angle.
In this embodiment, the third portion 211c recessed toward the substrate base includes a side 211c1 and a bottom 211c2, and an included angle α between the side 211c1 and the bottom 211c2 is an obtuse angle, so that the bending degree of the signal line 21 can be reduced, and the risk that the signal line 21 is broken due to an excessive bending degree can be reduced.
In order to make the included angle α between the side edge 211c1 and the bottom edge 211c2 be an obtuse angle, as shown in fig. 4, on the premise that the bottom edge 211c2, that is, the plane where the third substrate base plate 131 is located, is kept horizontal, the side edge 211c1 may have a certain inclination angle, so that the cross section of the display layer between the inner screen 11 and the first bendable part 13 and between the outer screen 12 and the first bendable part 13 may be designed as an inclined plane, and thus the signal line 21 is arranged along the inclined plane, that is, the included angle α between the signal line 21 and the bottom edge 211c2 can be kept as an obtuse angle.
As shown in fig. 2, the signal lines 21 include data driving signal lines 211 and gate driving signal lines, and the data driving signal lines 211 pass through the inner panel 11, the first bendable portion 13, and the outer panel 12.
In order to further simplify the arrangement of the signal lines 21, the data driving signal lines 211 are passed through the inner panel 11, the first bendable portion 13, and the outer panel 12 in the width direction of the foldable electronic device in this example. The data driving signal line 211 passes through the inner screen 11, the first bendable part 13 and the outer screen 12 along the width direction of the foldable electronic device, so that the outer screen 12 and the inner screen 11 are electrically connected with the driving chip 2 through the same data driving signal line 211, and the display of the outer screen 12 and the display of the inner screen 11 are conveniently controlled through the same driving chip 2. Therefore, the data driving signal line 211 passes through the inner panel 11, the first bendable part 13 and the outer panel 12, which can simplify the connection manner of the driving chip 2 with the inner panel 11 and the outer panel 12, and reduce the number of the driving chip 2.
As shown in fig. 2, a gate driving signal line is further led out from the driving chip 2, the gate driving signal line includes a first gate driving signal line 212 and a second gate driving signal line 213, the first gate driving signal line 212 is disposed on one side or both sides of the inner screen 11 along the length direction of the foldable electronic device, and the first gate driving signal line 212 is used for controlling the inner screen 11 to display or not to display; the second gate driving signal line 213 is disposed on one side or two sides of the display panel assembly 1 along the length direction of the foldable electronic device, and the second gate driving signal line 213 is used for controlling the display or non-display of the outer panel 12.
In this embodiment, the first gate driving signal line 212 may be disposed on one side of the inner panel 11, and the second gate driving signal line 213 is disposed on one side of the outer panel 12, at this time, the gate driving signal line can only drive the inner panel 11 or the outer panel 12 to display in a single side, and the single side driving can reduce the number of the gate driving signal lines. The first gate driving signal lines 212 may also be disposed on two sides of the inner panel 11, and the second gate driving signal lines 213 are also disposed on two sides of the outer panel 12, at this time, the gate driving signal lines may drive the inner panel 11 or the outer panel 12 to display simultaneously on two sides, or the two sides of the gate driving signal lines may drive the inner panel 11 or the outer panel 12 to display alternately. The bilateral simultaneous driving or bilateral alternate driving can shorten the response time of the display of the inner screen 11 and the outer screen 12 and reduce the display ghost effect.
Specifically, as shown in fig. 2, the first gate driving signal line 212 and the second gate driving signal line 213 can control the inner screen 11 and the outer screen 12 to display independently or simultaneously.
The gate driving signal line and the data driving signal line 211 are electrically connected to each other, and cooperate with each other to control the display of the inner panel 11 and the display of the outer panel 12.
In this embodiment, the main board of the foldable electronic device can send an instruction to the first gate driving line through the driving chip 2, so that the area of the inner screen 11 controlled by the first gate driving signal line 212 is powered on, and meanwhile, the data driving signal line 211 electrically connected to the first gate driving signal line 212 controls the display of the inner screen 11. The main board of the foldable electronic device can also send an instruction to the second gate driving signal line 213 through the driving chip 2 so that the area of the outer screen 12 controlled by the second gate driving signal line 213 is powered on, and meanwhile, the data driving signal line 211 electrically connected with the second gate driving signal line 213 controls the area of the outer screen 12 to display. The above operation can realize independent display of the inner screen 11 and the outer screen 12. The judgment condition that the inner screen 11 and the outer screen 12 independently display can be set as the opening angle of the inner screen 11, namely, the inner screen 11 is controlled according to the opening angle of the inner screen 11 to be used for displaying or the outer screen 12 is used for displaying, when the opening angle of the inner screen 11 is 180 degrees, the mainboard sends an instruction to the driving chip 2 to control the inner screen 11 to be used for displaying, and when the opening angle of the inner screen 11 is less than 180 degrees, the mainboard sends an instruction to the driving chip 2 to control the outer screen 12 to be used for displaying. The main board of the foldable electronic device can also send commands to the first gate driving signal line 212 and the second gate driving signal line 213 through the driving chip 2, so that the area of the inner screen 11 controlled by the first gate driving signal line and the area of the outer screen 12 controlled by the second gate driving signal line 213 are electrified, and meanwhile, the data driving signal line 211 electrically connected with the first gate driving signal line 212 and the second gate driving signal line 213 controls the inner screen 11 and the outer screen 12 to display, namely, the inner screen 11 and the outer screen 12 are displayed simultaneously.
It should be noted that, as shown in fig. 2, fig. 6 and fig. 7, the inner panel 11 includes a main body portion 114 and an extending portion 115, the main body portion 114 and the extending portion 115 are connected by a second bendable portion 116, so that the extending portion 115 can be bent at the back of the main body portion 114, the structure of the second bendable portion 116 is the same as that of the first bendable portion 13, and the arrangement of the signal line 21 in the second bendable portion 116 is the same as that in the first bendable portion 13, which is not described herein again. The driver chip 2 is disposed on the extension 115, the extension 115 is electrically connected to the motherboard through a Flexible Printed Circuit (FPC) 3, and the extension 115 bent from the back of the main body 114 is electrically connected to the motherboard, which is beneficial to the narrow design of the foldable electronic device. The electrical connection method between the extension portion 115 and the main board is not limited to the flexible printed circuit board 3, and may be other electrical connection methods such as an industrial Liquid Crystal Polymer (LCP).
The foregoing embodiment mainly discusses the case where the inner panel 11 is connected to one outer panel 12, and to be generalized, as shown in fig. 6, the inner panel 11 may be connected to N outer panels 12, the signal lines 21 include N +1 gate driving signal lines connected to the inner panel 11 and the N outer panels 12, and each gate driving signal line controls the corresponding inner panel 11 and the corresponding outer panel 12 to display or not to display.
In this embodiment, the data driving signal line 211 passes through the inner panel 11, the N outer panels 12 and the N first bendable parts 13 between the inner panel 11 and the outer panels 12, so that the main board sends instructions to the N +1 gate driving signal lines through the driving chip 2, and meanwhile, the data driving signal line 211 electrically connected to the N +1 gate driving signal lines can control the inner panel 11 and the N outer panels 12 to display or not display respectively.
In the above embodiments, as shown in fig. 2 and fig. 6, the size of the outer screen 12 and the size of the inner screen 11 along the length direction of the foldable electronic device are the same, or the size of the outer screen 12 and the size of the inner screen 11 may be completely the same, and in this application, the size of the outer screen 12 is not limited, and as shown in fig. 7, the size of the outer screen 12 and the size of the inner screen 11 along the length direction of the foldable electronic device may also be different.
In the embodiment shown in fig. 7, along the length direction of the foldable electronic device, the size of the outer screen 12 is different from the size of the inner screen 11, that is, the outer screen 12 and the inner screen 11 can be made into a special-shaped screen, so that the material of the display screen assembly 1 is saved, the cost is reduced, and different requirements of customers are met.
In addition, the shape of the outer screen 12 and the inner screen 11 is not limited in the present application, and may be various shapes such as a square shape and a circular shape.
It is noted that a portion of this patent application contains material which is subject to copyright protection. The copyright owner reserves the copyright rights whatsoever, except for making copies of the patent files or recorded patent document contents of the patent office.
Claims (11)
1. A foldable electronic device is characterized by comprising a bendable display screen assembly and a driving chip, wherein the display screen assembly comprises an inner screen, at least one outer screen and a first bendable part for connecting the inner screen and the outer screen, and the outer screen can be bent at the back of the inner screen;
the driving chip is arranged at one end of the display screen assembly along the width direction of the foldable electronic equipment, the driving chip comprises signal lines, and at least part of the signal lines extend along the width direction of the foldable electronic equipment and penetrate through the inner screen, the first bendable part and the outer screen;
the signal line comprises a first part passing through the inner screen, a second part passing through the outer screen and a third part passing through the first bendable part, and the perimeter of the third part is larger than the width of the first bendable part.
2. The foldable electronic device of claim 1, wherein the display screen assembly comprises a substrate base plate and a protective layer in a thickness direction of the foldable electronic device, and the signal line is located between the substrate base plate and the protective layer and recessed toward the substrate base plate to form the third portion.
3. The foldable electronic device of claim 2, wherein the inner and outer screens further comprise a display layer between the substrate base and the protective layer, the first and second portions being interpenetrated in the display layer.
4. The foldable electronic device of claim 2, wherein the protective layer comprises a protrusion filled in the third portion.
5. The foldable electronic device of claim 2, wherein a filler block is disposed between the protective layer and the third portion.
6. The foldable electronic device of claim 2, wherein the third portion comprises a side edge and a bottom edge, and wherein an included angle between the side edge and the bottom edge is an obtuse angle.
7. The foldable electronic device of claim 1, wherein the signal lines comprise data driving signal lines and gate driving signal lines, the data driving signal lines passing through the inner screen, the first bendable portion, and the outer screen along a width direction of the foldable electronic device.
8. The foldable electronic device of claim 7, wherein the gate driving signal lines comprise a first gate driving signal line and a second gate driving signal line, the first gate driving signal line is disposed on one side or two sides of the inner screen along a length direction of the foldable electronic device, and the first gate driving signal line is used for controlling the inner screen to display or not to display;
the second grid driving signal line is arranged on one side or two sides of the display screen assembly along the length direction of the foldable electronic equipment and is used for controlling the outer screen to display or not to display.
9. The foldable electronic device of claim 8, wherein the first and second gate drive signal lines are capable of controlling the inner and outer screens to display independently or simultaneously.
10. The foldable electronic device of any of claims 1-9, wherein N number of the outer panels are connected to the inner panel, the signal lines include N +1 gate driving signal lines connected to the inner panel and the N number of the outer panels, and each gate driving signal line controls the corresponding inner panel, the corresponding outer panel to display or not to display.
11. The foldable electronic device of any of claims 1-10, wherein the outer screen and the inner screen differ in size along a length direction.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117133190A (en) * | 2023-01-18 | 2023-11-28 | 荣耀终端有限公司 | Folding screen and foldable electronic device |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086236A (en) * | 2016-02-12 | 2017-08-22 | 三星显示有限公司 | Display device |
| CN107424520A (en) * | 2017-07-26 | 2017-12-01 | 京东方科技集团股份有限公司 | Substrate and preparation method thereof, display panel, display device |
| CN107765487A (en) * | 2017-10-30 | 2018-03-06 | 上海天马有机发光显示技术有限公司 | A kind of display device |
| CN107994036A (en) * | 2017-12-14 | 2018-05-04 | 京东方科技集团股份有限公司 | Substrate and preparation method thereof, display panel, display device |
| CN108493213A (en) * | 2018-03-13 | 2018-09-04 | 武汉华星光电半导体显示技术有限公司 | Display screen component and terminal device |
| CN108766979A (en) * | 2018-05-25 | 2018-11-06 | 武汉天马微电子有限公司 | Display panel and display device |
| CN108766249A (en) * | 2018-08-09 | 2018-11-06 | 武汉天马微电子有限公司 | A kind of folding display panel and foldable display device |
| CN110178174A (en) * | 2018-09-28 | 2019-08-27 | 华为技术有限公司 | A kind of gate driving circuit and its control method, mobile terminal |
| CN110518021A (en) * | 2019-09-10 | 2019-11-29 | 京东方科技集团股份有限公司 | Display base plate and preparation method thereof and display panel |
| CN110610968A (en) * | 2019-08-28 | 2019-12-24 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| WO2020029974A1 (en) * | 2018-08-06 | 2020-02-13 | 京东方科技集团股份有限公司 | Data transmission method, chip, controller, and display device |
| CN210668428U (en) * | 2020-01-02 | 2020-06-02 | 京东方科技集团股份有限公司 | Foldable display substrate and foldable display device |
| US20200267850A1 (en) * | 2018-09-29 | 2020-08-20 | Kunshan Go-Visionox Opto-Electronics Co., Ltd | Flexible display panel and flexible display device |
| CN111584554A (en) * | 2020-05-06 | 2020-08-25 | 武汉华星光电半导体显示技术有限公司 | Flexible array substrate and display panel |
| CN211454015U (en) * | 2019-08-29 | 2020-09-08 | 华为机器有限公司 | Polaroid, display module and display device |
| US20200365627A1 (en) * | 2018-05-31 | 2020-11-19 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Connection structure and fabrication method thereof, array substrate and fabrication method thereof |
| US20210007229A1 (en) * | 2019-07-04 | 2021-01-07 | Boe Technology Group Co., Ltd. | Display device |
| CN112562570A (en) * | 2020-12-25 | 2021-03-26 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
| US20210272485A1 (en) * | 2019-05-30 | 2021-09-02 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Flexible display substrate and method for manufacturing the same |
-
2021
- 2021-09-30 CN CN202111165036.1A patent/CN115019635B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086236A (en) * | 2016-02-12 | 2017-08-22 | 三星显示有限公司 | Display device |
| CN107424520A (en) * | 2017-07-26 | 2017-12-01 | 京东方科技集团股份有限公司 | Substrate and preparation method thereof, display panel, display device |
| CN107765487A (en) * | 2017-10-30 | 2018-03-06 | 上海天马有机发光显示技术有限公司 | A kind of display device |
| CN107994036A (en) * | 2017-12-14 | 2018-05-04 | 京东方科技集团股份有限公司 | Substrate and preparation method thereof, display panel, display device |
| CN108493213A (en) * | 2018-03-13 | 2018-09-04 | 武汉华星光电半导体显示技术有限公司 | Display screen component and terminal device |
| CN108766979A (en) * | 2018-05-25 | 2018-11-06 | 武汉天马微电子有限公司 | Display panel and display device |
| US20200365627A1 (en) * | 2018-05-31 | 2020-11-19 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Connection structure and fabrication method thereof, array substrate and fabrication method thereof |
| WO2020029974A1 (en) * | 2018-08-06 | 2020-02-13 | 京东方科技集团股份有限公司 | Data transmission method, chip, controller, and display device |
| CN108766249A (en) * | 2018-08-09 | 2018-11-06 | 武汉天马微电子有限公司 | A kind of folding display panel and foldable display device |
| CN110178174A (en) * | 2018-09-28 | 2019-08-27 | 华为技术有限公司 | A kind of gate driving circuit and its control method, mobile terminal |
| US20200267850A1 (en) * | 2018-09-29 | 2020-08-20 | Kunshan Go-Visionox Opto-Electronics Co., Ltd | Flexible display panel and flexible display device |
| US20210272485A1 (en) * | 2019-05-30 | 2021-09-02 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Flexible display substrate and method for manufacturing the same |
| US20210007229A1 (en) * | 2019-07-04 | 2021-01-07 | Boe Technology Group Co., Ltd. | Display device |
| CN110610968A (en) * | 2019-08-28 | 2019-12-24 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN211454015U (en) * | 2019-08-29 | 2020-09-08 | 华为机器有限公司 | Polaroid, display module and display device |
| CN110518021A (en) * | 2019-09-10 | 2019-11-29 | 京东方科技集团股份有限公司 | Display base plate and preparation method thereof and display panel |
| CN210668428U (en) * | 2020-01-02 | 2020-06-02 | 京东方科技集团股份有限公司 | Foldable display substrate and foldable display device |
| CN111584554A (en) * | 2020-05-06 | 2020-08-25 | 武汉华星光电半导体显示技术有限公司 | Flexible array substrate and display panel |
| CN112562570A (en) * | 2020-12-25 | 2021-03-26 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117133190A (en) * | 2023-01-18 | 2023-11-28 | 荣耀终端有限公司 | Folding screen and foldable electronic device |
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|---|---|
| CN115019635B (en) | 2023-10-27 |
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