CN115019635B - Folding electronic equipment - Google Patents
Folding electronic equipment Download PDFInfo
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- CN115019635B CN115019635B CN202111165036.1A CN202111165036A CN115019635B CN 115019635 B CN115019635 B CN 115019635B CN 202111165036 A CN202111165036 A CN 202111165036A CN 115019635 B CN115019635 B CN 115019635B
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- signal line
- display
- foldable electronic
- electronic device
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- 239000010410 layer Substances 0.000 claims description 60
- 239000000758 substrate Substances 0.000 claims description 50
- 239000011241 protective layer Substances 0.000 claims description 41
- 239000000945 filler Substances 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 229920000106 Liquid crystal polymer Polymers 0.000 description 3
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 206010066054 Dysmorphism Diseases 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000011521 glass Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 239000010453 quartz Substances 0.000 description 1
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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 foldable electronic equipment, 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, and comprises a signal wire, wherein at least part of the signal wire extends along the width direction of the foldable electronic equipment and passes 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, the third portion having a perimeter greater than a width of the first bendable portion. The signal wire passes through the inner screen, the first bendable part and the outer screen, so that the arrangement mode of the signal wire in the display screen assembly can be simplified. The circumference 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 breakage of the signal wire is reduced.
Description
Technical Field
The present application relates to the field of electronic products, and in particular, to a foldable electronic device.
Background
As the demand for foldable electronic devices increases, foldable electronic devices are becoming more and more interesting. However, the existing foldable electronic device generally comprises an outer screen and an inner screen, wherein the outer screen is positioned on the back surface of the inner screen and is attached to a middle frame on one side, so that the rear cover is achieved. The inner screen and the outer screen are two independent screens and are provided with 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 foldable electronic device, wherein an inner screen and an outer screen share a driving chip, so that the wiring structure can be simplified, and the production cost can be reduced.
The application provides foldable electronic equipment, 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 surface 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, and comprises a signal wire, wherein at least part of the signal wire extends along the width direction of the foldable electronic equipment and passes 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 circumference of the third part is larger than the width of the first bendable part.
In this scheme, the signal line passes interior screen, first kink and outer screen for interior screen and outer screen can share a driving 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 margin to enable the signal wire to be bent, so that the stretching of the signal wire during bending can be reduced, and the risk of breakage of 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 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 kink, outer screen region still is provided with other layers between second substrate base plate and second protective layer, interior screen region still is provided with other layers between first substrate base plate and first protective layer, consequently, the signal line that is located first kink 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 week of the third part of process recess is longer than the width of first kink, consequently, this design can realize that the week of third part is longer than the width of first kink, and the design is simple easily realized.
In one possible design, the inner and outer screens further comprise a display layer between the substrate base plate and the protective layer, the first and second portions interspersed in the display layer.
In this scheme, first part and the second part of signal line alternate in first display layer and second display layer, and first kink does not include the display layer, and the display layer is the disconnection in first kink region promptly, therefore in first kink region signal line is located between third substrate base plate and the third protective layer. In the example where the signal lines extend from the inner screen to the outer screen through the display screen assembly, the third portion may continue along the side walls of the inner screen display layer break until it contacts the third substrate, then along the side walls of the outer screen display layer break until it extends between the second display layers and continues until the outer edge of the outer screen. The first bendable portion does not comprise a display layer, so that the first bendable portion area has enough space to accommodate bent signal wires, and the display device is simple in structure and easy to realize.
In one possible design, the protective layer includes a protrusion that fills the third portion.
In this scheme, bellying and third protective layer 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, restricts the swing of 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 structural dimensions of first protective layer, second protective layer and third protective layer are the same, but in first kink region, then have certain clearance between third protective layer and the third substrate base plate, and the filler 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 angle between the side edge and the bottom edge is an obtuse angle.
In this scheme, the sunken third part of orientation substrate base plate includes side and base, and the contained angle alpha of 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, the data driving signal lines passing through the inner panel, the first bendable portion, and the outer panel in a width direction of the foldable electronic device.
To further simplify the arrangement of the signal lines, the data driving signal lines are passed through the inner panel, the first bendable portion, and the outer panel in the width direction of the foldable electronic device in this example. The data driving signal line passes through the inner screen, the first bendable part and the outer screen along the width direction of the foldable electronic equipment, so that the outer screen and the inner screen are respectively electrically connected with the driving chip through the same data driving signal line, and the outer screen and the inner screen are conveniently controlled to display through the same driving chip. Therefore, the data driving signal line passes through the inner screen, the first bendable part and the outer screen, so that the connection mode of the driving chip and the inner screen and the outer screen can be simplified, and the setting 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 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 display or non-display of the external screen.
In this scheme, first grid drive signal line can locate one side of interior screen, and one side of outer screen is located to the second grid drive signal line, and the grid drive signal line only can unilateral drive interior screen or outer screen display this moment, unilateral drive can reduce the setting of grid drive signal line. The first grid driving signal lines can also be arranged on two sides of the inner screen, the second grid driving signal lines are also arranged on two sides of the outer screen, and at the moment, the grid driving signal lines can drive the inner screen or the outer screen to display at the same time in a bilateral mode, or the two sides of the grid driving signal lines drive the inner screen or the outer screen to display alternately. The double-side simultaneous driving or double-side alternate driving can shorten the response time of the inner screen and the outer screen display 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 be displayed independently or simultaneously.
In this scheme, the mainboard of collapsible electronic equipment can make the interior screen region circular telegram of first grid drive signal line control through driving chip to first grid drive line instruction, and simultaneously with the data drive signal line control interior screen display who is connected with first grid drive signal line electricity. The main board of the foldable electronic device can send an instruction to the second grid driving signal line through the driving chip, so that the outer screen area controlled by the second grid driving signal line is electrified, and meanwhile, the data driving signal line electrically connected with the second grid driving signal line controls the outer screen area to display. The operation can realize that the inner screen and the outer screen are displayed independently. The judging condition of the independent display of the inner screen and the outer screen can be set as the opening angle of the inner screen, namely, the inner screen is controlled to be used for displaying according to the opening angle of the inner screen or the outer screen is controlled to be used for displaying according to the opening angle of the inner screen, when the opening angle of the inner screen is 180 degrees, the main board sends an instruction to the driving chip to control the inner screen to be used for displaying, and when the opening angle of the inner screen is smaller than 180 degrees, the main board sends an instruction to the driving chip to control the outer screen to be used for displaying. The main board of the foldable electronic equipment can also send out instructions to the first grid driving signal line and the second grid driving signal line through the driving chip, so that the inner screen area controlled by the first grid driving signal line and the 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 be displayed, namely, the inner screen and the outer screen are displayed simultaneously.
In another possible design, the inner panel is connected with N outer panels, the signal lines include n+ gate driving signal lines connected with the inner panel and the N outer panels, and each gate driving signal line controls the corresponding inner panel, outer panel to display or not to display.
In this scheme, data drive signal line passes interior screen, N outer screen and interior screen and outer screen between N first kink, consequently the mainboard sends the instruction respectively to N+ grid drive signal line through driver chip, and simultaneously with N+ grid drive signal line electricity connected data drive signal line can control respectively interior screen, N outer screen respectively show or not show.
In a further possible design, the outer screen differs from the inner screen in terms of its length.
In this scheme, along the length direction of collapsible electronic equipment, the size of outer screen is different with the size of interior screen, can make outer screen and interior screen dysmorphism screen, practices thrift the material of display screen subassembly, 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 as claimed.
Drawings
Fig. 1 is a schematic structural diagram of a foldable electronic device according to an embodiment of the present application;
FIG. 2 is a schematic diagram of the internal structure of the foldable electronic device of FIG. 1 in one embodiment;
FIG. 3 is a cross-sectional view of the display screen assembly of FIG. 2 taken along the A-A direction in one embodiment;
FIG. 4 is a schematic illustration of the bendable portion of FIG. 3 with a region marked in size;
FIG. 5 is a cross-sectional view of the display screen assembly of FIG. 2 taken along the direction A-A in another embodiment;
fig. 6 is a schematic structural diagram of a foldable electronic device according to another embodiment of the present application;
fig. 7 is a schematic structural diagram of a foldable electronic device according to another embodiment of the present application.
Reference numerals:
1-a display screen assembly;
11-an inner screen;
111-a first substrate base plate;
112-a first protective layer;
113-a first display layer;
114-a body portion;
115-extensions;
116-a second bendable portion;
12-an outer screen;
121-a second substrate base plate;
122-a second protective layer;
123-a second display layer;
13-a first bendable portion;
131-a third substrate base plate;
132-a third protective layer;
132 A-A boss;
132 b-filling blocks;
2-driving a chip;
21-signal lines;
211-data driving signal lines;
211 A-A first portion;
211 b-a second part;
211 c-a third portion;
211c 1-sides;
211c 2-bottom edge;
212-a first gate driving signal line;
213-a second gate drive signal line;
3-a flexible circuit board;
4-a rear cover;
c-circumference;
s-the width of the first bendable part;
alphA-Angle.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Detailed Description
For a better understanding of the technical solution of the present application, the following detailed description of the embodiments of the present application refers to the accompanying drawings.
Embodiments of the present application provide a foldable electronic device, which is shown in fig. 1, and the foldable electronic device includes any device having a foldable screen function, such as a mobile phone, a tablet computer, a personal digital assistant (personal digital assistant, PDA), a notebook computer, a vehicle-mounted computer, a foldable display device, a foldable display screen, and a wearable device. The embodiment of the application does not limit the specific form of the foldable electronic device, and for convenience of description, the foldable electronic device is taken as an example of a mobile phone, and the electronic device of the application is described in the following specific embodiment.
In order to describe the foldable electronic device of the present application more clearly, 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 refer to directions in which the foldable electronic device is in an unfolded state.
As shown in fig. 1, the foldable electronic device includes a foldable display screen assembly 1, the display screen assembly 1 includes an inner screen 11, at least one outer screen 12, and a first foldable portion 13 connecting the inner screen 11 and the outer screen 12, the outer screen 12 being foldable to the back of the inner screen 11; as shown in fig. 2, the foldable electronic device further includes a driving chip 2, wherein the driving chip 2 is disposed at one end of the display screen assembly 1 along the width direction of the foldable electronic device, the driving chip 2 includes a signal line 21, and at least part of the signal line 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 screen 11, a second portion 211b passing through the outer screen 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 device further comprises a rear cover 4, the rear cover 4 can improve the sealing performance of the foldable electronic device, reduce risks that moisture, dust and the like enter the inside of the foldable electronic device, and improve the use safety and service life of the foldable electronic device.
It should be noted that, when the display screen assembly 1 includes the inner screen 11 and the plurality of outer screens 12, the inner screen 11 and the outer screens 12 are connected through the first bendable portion 13, the plurality of outer screens 12 may be disposed on the same side or two sides of the inner screen 11, and when the plurality of outer screens 12 are disposed on the same side of the inner screen 11, the outer screens 12 and the inner screen 11 are connected through the first bendable portion 13, and the outer screens 12 are also connected through the first bendable portion 13. The following will only describe in detail the case where the foldable electronic device comprises one external screen 12.
The inner screen 11 itself may be folded so that the inner screen 11 has two states of folding or unfolding. 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 volume of the foldable electronic equipment can be reduced, the foldable electronic equipment is convenient to store and carry, and the outer screen 12 positioned 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 the user can be increased.
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 signal lines 21 pass through in the following order: passes through the inner screen 11, the first bendable part 13 and the outer screen 12 in sequence; when the driving chip 2 is disposed at one end of the external screen 12, the signal lines 21 pass through in the following order: passes through the outer screen 12, the first bendable portion 13 and the inner screen 11 in this order.
As shown in fig. 2, the portion of the signal line 21 passing through the inner screen 11 is defined as a first portion 211a, the portion of the signal line 21 passing through the outer screen 12 is defined as a second portion 211b, 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, the perimeter C of the third portion 211C is the sum of the lengths C1 and C2 of the two sides 211C1 and the length C3 of the bottom side 211C2, the width of the first bendable portion 13 is S, it is obvious that the perimeter C of the third portion 211C is greater than the width of the first bendable portion 13, and when the first bendable portion 13 is bent, the third portion 211C has enough margin to bend the signal line 21, so that stretching of the signal line 21 can be reduced during bending, and the risk of breaking the signal line 21 is reduced.
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 part of the signal lines 21 pass through the inner panel 11, the first bendable portion 13, and the outer panel 12, meaning 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 in the width direction of the foldable electronic device. The signal wire 21 passes through the inner screen 11, the first bendable 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 wire 21 in the display screen assembly 1 is simplified, the production efficiency is improved, and the production cost is reduced.
The specific arrangement of the signal lines 21 in the display panel assembly 1 is described in detail below, and the display panel assembly 1 includes a substrate and a protective layer along the thickness direction of the foldable electronic device, as shown in fig. 3 and 5, with the signal lines 21 being located between the substrate and the protective layer and recessed toward the substrate to form the third portion 211c.
As shown in fig. 3 and 5, the substrate includes a first substrate 111 located in the area of the inner panel 11, a second substrate 121 located in the area of the outer panel 12, and a third substrate 131 located in the area of the bendable portion. Similarly, the protective layers include a first protective layer 112 in the region of the inner screen 11, a second protective layer 122 in the region of the outer screen 12, and a third protective layer 132 in the region of the bendable portion.
In this embodiment, the signal line 21 is located between the substrate and the protective layer, the display panel assembly 1 includes only the third substrate 131 and the third protective layer 132 at the first bendable portion 13, the outer panel 12 region is further provided with other layers between the second substrate 121 and the second protective layer 122, the inner panel 11 region is further provided with other layers between the first substrate 111 and the first protective layer 112, therefore, the signal line 21 located at the first bendable portion 13 can be bent between the third substrate 131 and the third protective layer 132, in this embodiment, 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, and therefore, the design can realize that the perimeter C of the third portion 211C is larger than the width of the first bendable portion 13, and the design is simple and easy to realize.
Specifically, as shown in fig. 3 and 5, the inner screen 11 and the outer screen 12 further include a display layer between the substrate and the protective layer, and the first portion 211a and the second portion 211b are interposed in the display layer.
As shown in fig. 3 and 5, the display layers include a first display layer 113 located in the area of the inner screen 11 and a second display layer 123 located 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 interposed between the first display layer 113 and the second display layer 123, and the first bendable portion 13 does not include a display layer, i.e., the display layer is disconnected 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 protective layer 132 in the area of the first bendable portion 13. In the example illustrated herein in which the signal lines 21 extend from the inner screen 11 to the outer screen 12 through the display screen assembly 1, the third portion 211c may continue along the sidewall where the display layers of the inner screen 11 are broken to contact the third substrate 131, then extend along the sidewall where the display layers of the outer screen 12 are broken to between the second display layers 123 and continue until the outer edge of the outer screen 12. The first bendable portion 13 does not include a display layer, so that the first bendable portion 13 has enough space to accommodate the bent signal line 21, and is simple in structure and easy to implement. The display layer generally includes a pixel unit including an anode layer, an organic material functional layer, and a cathode layer, and the first bendable portion 13 does not include a display layer, so the first bendable portion 13 cannot be used for displaying a picture.
Of course, the first bendable portion 13 may also be displayed, that is, a pixel unit composed of an anode layer, an organic material functional layer, and a cathode layer is also included at the position of the first bendable portion 13.
The substrate base plate includes a substrate and an organic film or an inorganic film deposited on the substrate, the substrate may be made of organic glass, resin, quartz, metal, and other materials, 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 (Thin Film Transistor, TFT). The protective layer is generally a planar layer (PLN layer for short), and the protective layer may be made of acrylic material. The display layer is positioned 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 protection layer 132 includes a protrusion 132a, and the protrusion 132a is filled in the third portion 211c.
In this embodiment, the protruding portion 132a and the third protection layer 132 are in an integrated structure, the third portion 211c of the signal line 21 is recessed toward the direction of the substrate, the protruding portion 132a can fill the recess, the swing of the signal line 21 is limited, the connection stability of the signal line 21 is improved, and the stable signal transmission of the signal line 21 is ensured.
In another embodiment, as shown in fig. 5, a filling block 132b is disposed between the third protection layer 132 and the third portion 211c.
In this embodiment, the first protection layer 112, the second protection layer 122 and the third protection layer 132 have the same structural dimensions, and a certain gap is formed between the third protection layer 132 and the third substrate 131 in the area of the first bendable portion 13, and the filling block 132b is used for filling the gap and playing a role in fixing 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 211c1 and a bottom 211c2, and an included angle α between the side 211c1 and the bottom 211c2 is an obtuse angle.
In this embodiment, the third portion 211c recessed toward the substrate 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 of breaking due to the excessive bending degree of the signal line 21 can be reduced.
In order to make the 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, i.e., the plane on which the third substrate 131 is located, the side edge 211c1 may have a certain inclination angle, so that the cross sections of the display layer between the inner panel 11 and the first bendable portion 13 and between the outer panel 12 and the first bendable portion 13 may be designed as inclined planes, and thus the signal line 21 is arranged along the inclined planes, i.e., the angle α between the signal line and the bottom edge 211c2 can be maintained to be 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.
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 respectively electrically connected with the driving chip 2 through the same data driving signal line 211, and the outer screen 12 and the inner screen 11 are conveniently controlled to be displayed through the same driving chip 2. Therefore, the data driving signal line 211 passes through the inner panel 11, the first bendable portion 13 and the outer panel 12, so that the connection mode of the driving chip 2 and the inner panel 11 and the outer panel 12 can be simplified, and the setting of the driving chip 2 can be reduced.
As shown in fig. 2, a gate driving signal line is 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 two 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 display; the second gate driving signal line 213 is disposed on one side or both 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 external screen 12.
In this embodiment, the first gate driving signal line 212 may be disposed on one side of the inner screen 11, the second gate driving signal line 213 is disposed on one side of the outer screen 12, and the gate driving signal line can only drive the inner screen 11 or the outer screen 12 to display, and the single-side driving can reduce the arrangement of the gate driving signal line. The first gate driving signal lines 212 may also be disposed on two sides of the inner screen 11, and the second gate driving signal lines 213 may also be disposed on two sides of the outer screen 12, where the gate driving signal lines may drive the inner screen 11 or the outer screen 12 to display at the same time, or alternatively drive the inner screen 11 or the outer screen 12 to display at two sides of the gate driving signal lines. The double-sided simultaneous driving or double-sided alternating 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 panel 11 and the outer panel 12 to be displayed independently or simultaneously.
The gate driving signal line and the data driving signal line 211 are electrically connected to each other, and the two are operated in cooperation to control the display of the inner panel 11 and the outer panel 12.
In this embodiment, the main board of the foldable electronic device may send an instruction to the first gate driving line through the driving chip 2, so that the region of the inner screen 11 controlled by the first gate driving signal line 212 is electrified, and at the same time, the data driving signal line 211 electrically connected to the first gate driving signal line 212 controls the inner screen 11 to display. The main board of the foldable electronic device may further send an instruction to the second gate driving signal line 213 through the driving chip 2, so that the area of the external screen 12 controlled by the second gate driving signal line 213 is powered on, and at the same time, the data driving signal line 211 electrically connected to the second gate driving signal line 213 controls the display of the area of the external screen 12. The above operation can realize that the inner screen 11 and the outer screen 12 are displayed independently. The judging condition that the inner screen 11 and the outer screen 12 are independently displayed can be set as the opening angle of the inner screen 11, that is, the inner screen 11 is controlled to be used for displaying according to the opening angle of the inner screen 11 or the outer screen 12 is controlled to be used for displaying, when the opening angle of the inner screen 11 is 180 degrees, the main board 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 smaller than 180 degrees, the main board 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 may also send an instruction to the first gate driving signal line 212 and the second gate driving signal line 213 through the driving chip 2, so that the inner screen 11 area controlled by the first gate driving signal line and the outer screen 12 area controlled by the second gate driving signal line 213 are electrified, and at the same time, 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 both the inner screen 11 and the outer screen 12 to be displayed, that is, 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 screen 11 includes a body portion 114 and an extension portion 115, and the body portion 114 and the extension portion 115 are connected by a second bendable portion 116, so that the extension portion 115 can be bent at the back surface of the 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 at the second bendable portion 116 is the same as that at the first bendable portion 13, which is not described herein again. The driving chip 2 is disposed on the extension portion 115, the extension portion 115 is electrically connected with the motherboard through the flexible circuit board 3 (Flexible Printed Circuit, FPC), and the extension portion 115 bent at the back surface of the body portion 114 is electrically connected with the motherboard, which is beneficial to realizing the narrow-edge design of the foldable electronic device. The electrical connection between the extension 115 and the motherboard is not limited to the flexible circuit board 3, and may be other electrical connection such as an industrial liquid crystal polymer (Liquid Crystal Polymer, LCP).
The above embodiment mainly discusses the case where the inner panel 11 is connected to one outer panel 12, and as shown in fig. 6, the inner panel 11 may be connected to N outer panels 12, and 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, outer panel 12 to display or not display, respectively.
In this embodiment, the data driving signal lines 211 pass through the inner panel 11, the N outer panels 12, and the N first bendable portions 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 at the same time, the data driving signal lines 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 6, the dimensions of the outer screen 12 and the inner screen 11 along the length direction of the foldable electronic device are the same, or the dimensions of the outer screen 12 and the inner screen 11 may be identical, and in the present application, the dimensions of the outer screen 12 are not limited, and as shown in fig. 7, the dimensions of the outer screen 12 and 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, so that the outer screen 12 and the inner screen 11 can be made into special-shaped screens, the materials of the display screen assembly 1 are saved, the cost is reduced, and different requirements of customers are met.
The shape of the outer screen 12 and the inner screen 11 is not limited, and may be various shapes such as square, circular, and the like.
It is noted that a portion of this patent document contains material which is subject to copyright protection. The copyright owner has reserved copyright rights, except for making copies of patent documents or recorded patent document content of the patent office.
Claims (8)
1. The 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 surface 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, and comprises a signal wire, wherein at least part of the signal wire extends along the width direction of the foldable electronic equipment and passes through the inner screen, the first bendable part and the outer screen;
wherein the signal line comprises 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, the third portion having a perimeter greater than a width of the first bendable portion;
the inner screen and the outer screen further comprise a display layer, and the first part and the second part are inserted into the display layer; the first bendable portion does not include a display layer; the display layer comprises a second display layer positioned in the outer screen area;
the display screen assembly comprises a substrate base plate and a protective layer along the thickness direction of the foldable electronic device, wherein the substrate base plate comprises a third substrate base plate positioned in the first bendable part area; the third part extends along the side wall of the display layer break of the inner screen to be in contact with the third substrate, then extends between the second display layers along the side wall of the display layer break of the outer screen and continues to extend to the outer edge of the outer screen;
the signal line is positioned between the substrate and the protective layer and is recessed towards the direction of the substrate so as to form the third part; the protection layer comprises a third protection layer positioned in the first bendable part area, the protection layer comprises a protruding part, the protruding part is filled in the third part, the protruding part and the third protection layer are of an integrated structure, the protruding part can fill the recess, the swing of the signal wire is limited, the connection stability of the signal wire is improved, and stable signal transmission of the signal wire is ensured;
the inner screen comprises a body part and an extension part, wherein the body part and the extension part are connected through a second bendable part, so that the extension part can be bent at the back surface of the body part; the driving chip is arranged on the extension part, and the extension part is electrically connected with the main board of the foldable electronic device through the flexible circuit board.
2. The foldable electronic device of claim 1, wherein a filler is disposed between the protective layer and the third portion.
3. The foldable electronic device of claim 1, wherein the third portion includes a side edge and a bottom edge, the included angle between the side edge and the bottom edge being an obtuse angle.
4. The foldable electronic device of claim 1, wherein the signal lines include a data driving signal line and a gate driving signal line, the data driving signal line passing through the inner screen, the first bendable portion, the outer screen in a width direction of the foldable electronic device.
5. The foldable electronic device of claim 4, wherein the gate drive signal lines include a first gate drive signal line and a second gate drive signal line, the first gate drive signal line being provided on one side or both sides of the inner screen along a length direction of the foldable electronic device, the first gate drive signal line being for controlling display or non-display of the inner screen;
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 display or non-display of the external screen.
6. The foldable electronic device of claim 5, wherein the first gate drive signal line and the second gate drive signal line are capable of controlling the inner screen and the outer screen to be displayed independently or simultaneously.
7. The foldable electronic device of any one of claims 1-6, wherein N external panels are connected to the internal panel, the signal lines include n+1 gate driving signal lines connected to the internal panel and N external panels, and each gate driving signal line controls the internal panel, the external panel, or no display, respectively.
8. The foldable electronic device of any of claims 1-6, wherein the outer screen is different from the inner screen in a lengthwise dimension.
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| CN117133190A (en) * | 2023-01-18 | 2023-11-28 | 荣耀终端有限公司 | Folding screen and foldable electronic device |
Citations (15)
| 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 |
| 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 |
| CN108766979A (en) * | 2018-05-25 | 2018-11-06 | 武汉天马微电子有限公司 | Display panel and 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 |
| 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 |
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493155B (en) * | 2018-05-31 | 2020-12-08 | 京东方科技集团股份有限公司 | Connection structure and manufacturing method thereof, array substrate and manufacturing method thereof |
| CN208766968U (en) * | 2018-09-29 | 2019-04-19 | 昆山国显光电有限公司 | A kind of flexible display panels and flexible display apparatus |
| CN110137186B (en) * | 2019-05-30 | 2021-12-28 | 京东方科技集团股份有限公司 | Flexible display substrate and manufacturing method thereof |
| CN110299473B (en) * | 2019-07-04 | 2022-04-15 | 京东方科技集团股份有限公司 | Display device |
-
2021
- 2021-09-30 CN CN202111165036.1A patent/CN115019635B/en active Active
Patent Citations (15)
| 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 |
| 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 |
| 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 |
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|---|---|
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