CN216435327U - Display device and electronic apparatus - Google Patents

Abstract

The embodiment of the application discloses display device and electronic equipment, display device has the display area and wraps the black border of display area, the display area includes main display area and is located main display area bottom and be in the outer display area that expands of intermediate position, the lower border of main display area divides left and right sides to be located outer both sides of expanding the display area, the lower border of main display area with outer lower border that expands the display area defines the inner border of black border bottom. The display device can realize the effect of locally reducing the size of the black edge at the bottom under the condition of not influencing the package bending, and achieves the purpose of improving the display screen occupation ratio, thereby further improving the visual experience.

Description

Display device and electronic apparatus

Technical Field

The present application relates to the field of display technologies, and in particular, to a display device for an electronic apparatus. The application also relates to an electronic device provided with the display device.

Background

The screen occupation ratio is used for representing a relative ratio of the screen area and the area of a front panel of the mobile phone, is an important parameter for designing the smart phone at present, and can bring more shocking visual experience by improving the screen occupation ratio, and other electronic devices such as a tablet, a computer, a television and the like are also the same.

Taking a smart phone as an example, the screen packaging technology thereof is mainly classified into three categories: the COG screen packaging process comprises the steps of COG, COF and COP, wherein a chip is directly placed above glass, so that the utilization rate of a mobile phone space is low, and the screen occupation ratio is not high; the COF screen packaging process is characterized in that an IC chip of a screen is integrated on an FPC made of a flexible material and then is bent to the lower side of the screen, and compared with COG, the COF screen packaging process can further reduce a frame and improve screen occupation ratio; the principle of COP screen packaging is that a part of a screen is directly bent, so that a frame is further reduced, an effect of almost no frame can be achieved, and due to the fact that the screen is required to be bent, an OLED flexible screen needs to be carried on a machine type using the COP screen packaging process.

The main reason for further improving the screen occupation ratio at the present stage is the black edge size of the screen, the black edge at the most edge of the screen is a circle of black area which can not display images around the screen, and the black area is the BM area which can wrap a plurality of wires of the screen besides the function of preventing light leakage of the screen, so that the black edge (BM area) around the screen is necessary at the present stage.

In order to avoid the problems of glare, bright edges and the like and to take account of errors in screen assembly, the BM area of the screen and the frame of the screen are usually not aligned, that is, the frame of the smart phone is not limited to the side of the frame of the body, the width of the frame of the screen includes not only the width of the plastic or metal side of the smart phone but also the black edge of the screen.

At present, screens of a plurality of mobile phones adopt the design of an ultra-narrow frame, and the ultra-narrow frame theoretically needs to calculate the BM area of the screen, so that the size of the black edge (BM area) of the mobile phone screen is narrower and narrower, and even the effect of being close to the frame can be achieved. However, when the size of the black border is reduced to a certain degree, a technical bottleneck appears, and a great breakthrough is difficult to be made.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a display device. The display device can further improve the display screen ratio under the condition of not influencing the package bending.

The embodiment of the application provides a display device, has the black limit of display area and package display area, and the display area is divided into main display area and expands the display area outward, and wherein, expand the display area outward and be located main display area bottom and be in the intermediate position, and the lower limb of main display area divides to be located the both sides that expand the display area outward about, and the lower limb of main display area and the lower limb that expands the display area outward define the interior border of black limit bottom.

This embodiment provides a display device in which the middle of the bottom of the main display area has an extended display area in an outwardly extended form. Like this, can realize the effect of black limit size under the local reduction on prior art's basis under the condition that does not influence line and encapsulation and buckle, and then reach the purpose that improves the display screen and account for the ratio.

On the one hand, the embodiment of the present application further provides a first implementation manner of the one hand:

the lower edge of the outward expansion display area is a horizontal straight line.

Based on the first implementation manner of an aspect, an embodiment of the present application further provides a second implementation manner of an aspect:

the two side edges of the outward expansion display area are vertical lines or oblique lines which are symmetrical left and right, and the vertical lines or the oblique lines form transition lines between the lower edge of the main display area and the lower edge of the outward expansion display area.

On the one hand, the embodiment of the present application further provides a third implementation manner of the one hand: the lower edge of the outward expansion display area is in a circular arc line or curve and is in smooth transition with the lower edge of the main display area.

Based on the third implementation manner of an aspect, the present application provides a fourth implementation manner of an aspect:

the transverse width of the external expansion display area is approximately equal to the width of a straight wiring area of the display grid line.

On the one hand, the embodiment of the present application further provides a fifth implementation manner of the one hand:

the display device comprises a product frame, wherein the lower edge of the outward expansion display area is positioned on the inner side of the lower edge of a frame opening of the product frame.

On the one hand, the embodiment of the present application further provides a sixth implementation manner of the one hand:

the lower edge of the extended display area exceeds the lower boundary of the touch area.

On the one hand, the embodiment of the present application further provides a seventh implementation manner of the one hand:

the vertical size n of the outward expansion display area is 0.1-0.6 mm; or the vertical size n of the outward expansion display area is 0.1-0.5 mm; or the vertical size n of the outward expansion display area is 0.2-0.4 mm; or the vertical size n of the outward expansion display area is 0.2-0.3 mm.

On the one hand, the embodiments of the present application further provide an eighth implementation manner of the one hand:

the black edge comprises an upper black edge positioned above the display area and a lower black edge positioned below the display area, and the lower edge of the main display area and the lower edge of the outward expansion display area define the inner edge of the lower black edge;

the outer edge of the upper black edge is arc-shaped, the inner edge of the upper black edge is arc-shaped, the outer edge of the lower black edge is arc-shaped, and the lower edge of the outward expansion display area is arc-shaped or curved and is in smooth transition with the lower edge of the main display area;

or the outer edge of the upper black edge is linear, the inner edge of the upper black edge is linear, the outer edge of the lower black edge is linear, and the lower edge of the outward expansion display area is a horizontal straight line;

or the outer edge of the upper black edge is in an arc shape, the inner edge of the upper black edge is in an arc shape, the outer edge of the lower black edge is in a straight line shape, and the lower edge of the outward expansion display area is in an arc line or curve and is in smooth transition with the lower edge of the main display area;

or the outer edge of the upper black edge is in a linear shape, the inner edge of the upper black edge is in a linear shape, the outer edge of the lower black edge is in a linear shape, and the lower edge of the outward expansion display area is in a circular arc line or curve and is in smooth transition with the lower edge of the main display area.

On the other hand, an embodiment of the present application provides an electronic apparatus, which includes a housing and a display device disposed on the housing, where the display device is the display device described in any one of the above.

The electronic device provided by the embodiment is provided with the display device, and because the display device has the technical effects, the electronic device provided with the display device also has the corresponding technical effects.

Drawings

FIG. 1 is an exploded view of a typical smart phone;

FIG. 2 is a diagram illustrating an exploded view of a typical smart phone;

FIG. 3 is a schematic front view of a typical smart phone screen;

FIG. 4 is a partial cross-sectional view I-I of FIG. 1;

FIG. 5 is a schematic view of a COP fold region at the bottom of a handset;

FIG. 6 is a partial enlarged view of the lower left corner of the smartphone screen shown in FIG. 4;

fig. 7 is a layout diagram of a main display area and an extended display area of a smart phone screen according to an embodiment of the present application;

fig. 8 is a partially enlarged view of a lower left corner of a smartphone screen provided in an embodiment of the present application;

fig. 9 is a schematic diagram of a gate line trace at the bottom of a smart phone screen;

fig. 10 is a schematic diagram of a position relationship between the main display area, the outward-extended display area and the gate line traces;

FIG. 11 is a schematic view of the lower edge of the flared display area being in line;

FIG. 12 is a schematic view of the lower edge of the extended display area being a circular arc;

FIG. 13 is a perspective view of the product frame, black border and display area after the arrangement of FIG. 11 is used;

fig. 14 is a perspective view of the product frame, black border and display area after the solution shown in fig. 12 is adopted.

In the figure:

1. black edge 1-1, lower black edge 1-2, upper black edge 2, protective glass layer 3, optical transparent adhesive layer 4, polarizing layer 5, touch liquid crystal layer 51, touch layer 52, liquid crystal layer 6, touch area boundary 7, grid line 71, oblique grid line 72, vertical grid line 8, lower edge 9, oblique line 10, arc line 11, product frame 12, backlight layer 13, shell 13-1, middle frame 13-2, rear cover 14, display area 14-1, main display area 14-2, and external display area

Detailed Description

In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.

In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" in the text is only an association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone.

In this specification, terms such as "upper, lower, inner, and outer" are established based on positional relationships shown in the drawings, and the corresponding positional relationships may vary depending on the drawings, and therefore, the terms are not to be construed as absolutely limiting the scope of protection; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

Referring to fig. 1 to 4, the display device is illustrated in the present embodiment by taking a smart phone as an example, the smart phone generally includes a housing 13, a screen located on a front surface of the housing 13, and a circuit board disposed inside the housing 13, the screen is a multilayer structure and includes, in a thickness direction, a COVER GLASS layer 2(COVER GLASS), an optical clear adhesive layer 3(OCA), a polarization layer 4(POL), a touch liquid crystal layer 5(PANEL), and a backlight layer 12 from top to bottom, wherein the touch liquid crystal layer 5 further includes a touch layer 51 and a liquid crystal layer 52, and the housing 13 may include two portions, namely, a middle frame 13-1 and a back COVER 13-2.

Referring to fig. 5 and 6, the front surface of the screen is a display area 14, a circle of black border 1 is designed around the display area 14, an area within the black border 1 is the display area, a lower black border 1-1 is located below the display area 14, and an upper black border 1-2 is located above the display area 14.

One of the main factors that restrict the screen to account for further improvement at the present stage is the size of the black edge 1, especially the lower black edge 1-1, because the lower end of the screen has a package bending section D, and the wiring width C of the lower end of the screen is greater than the wiring widths of the screens of the other three edges, and due to the above factors, the width of the lower black edge 1-1 is greater than the widths of the other three black edges by 1mm-2mm, which affects the visual experience.

Referring to fig. 7 and 8, based on the above findings, the technical solution provided in the embodiment of the present application is further improved, the display area 14 after the improvement is divided into a main display area 14-1 and an extended display area 14-2, the extended display area 14-2 is located at the bottom of the main display area 14-1 and is located at a middle position, the lower edge of the main display area 14-1 is located at two sides of the extended display area 14-2, and the lower edge of the main display area 14-1 and the lower edge of the extended display area 14-2 form an inner edge of the lower black edge 1-1 together.

The extended display area 14-2 further extends the displayable range on the basis of the main display area 14-1, and for convenience of description, the area occupied by the main display area 14-1 and the extended display area 14-2 is identified by a dotted line as a boundary line, and actually, the main display area 14-1 and the extended display area 14-2 do not have such a visible boundary line in visual effect.

Therefore, under the condition of not influencing COP bending, the lower black edge 1-1 is locally reduced by 0.2mm-0.4mm on the basis of the prior art, the display screen occupation ratio is enlarged, the display range is enlarged compared with the prior screen, and the black edge width is not increased.

Although the embodiment describes the lower black edge structure of the display device by taking a COP packaging process as an example, it is understood that the structure is also applicable to a display device packaged by other processes.

When the display screen is observed from the paper surface, the outward expansion display area 14-2 is positioned in the middle of the bottom of the main display area 14-1, and the lower edge 8 of the outward expansion display area is partially outward expanded downwards along the direction shown by the arrow in the figure, so that the purposes of reducing the size of the lower black edge 1-1 and improving the display screen ratio are achieved.

The lower edge of the extended display area 14-2 may exceed the touch area boundary 6 (marked by a dashed dotted line, in a complete front view, the dashed dotted line is closed along the circumferential direction, an area inside the closed line is a touch area and can be operated by using a finger in a touch manner, and an area outside the dashed dotted line is a non-touch area and cannot be operated by using the finger in the touch manner), that is, a part of the extended display area 14-2 is located in the touch area, and another part is located in the non-touch area.

Because the extended display area 14-2 is already very close to the frame of the device and the size is relatively small, even if a part of the extended display area 14-2 cannot be touched, the normal use of the device is not affected.

Certainly, in order to perform touch control at any position of the extended display area 14-2, the touch area boundary 6 may also be moved downward, so that the entire extended display area 14-2 is located in the touch area, and a touch blind area is avoided.

In this embodiment, the vertical dimension n of the outward expansion display area 14-2 is 0.4mm, which is a larger distance that the lower black edge 1-1 is reduced under the premise that the bending radius of the conventional COP is not changed, but is not represented as a maximum value.

For example, in some embodiments, the vertical dimension n of the flared display area 14-2 may be 0.1-0.6 mm.

In other embodiments, the vertical dimension n of the flared display area 14-2 may be 0.1-0.5 mm.

In other embodiments, the vertical dimension n of the flared display area 14-2 may be 0.2-0.3 mm.

In this embodiment, the left and right ends of the extended display area 14-2 have a horizontal distance from the fillet area of the left and right lower corners of the main display area 14-1; meanwhile, the lateral width of the outward expansion display area 14-2 is smaller than that of the bottom packaging bending area.

As shown in fig. 9 and 10, the display device provided in the embodiment of the present application can form an expanded display area 14-2 at the bottom of the main display area 14-1, and the design mechanism thereof is mainly that routing widths C need to be reserved in the rounded corner areas near the lower left corner and the lower right corner of the screen, the routing manner for controlling the displayed gate lines 7 at the rounded corner positions is an oblique converging routing, which is represented by oblique gate lines 71 in the figure, and the oblique gate lines are more in number, if the size of the routing width C is too small, the space is compressed, which causes the oblique gate lines 71 to be too dense, which affects the signal transmission in the gate lines, so that there is a limit width, the routing width C cannot be further reduced, and the gate lines 7 in the middle area are vertical straight lines parallel to each other, which is represented by vertical lines 72 in the figure, even if the routing width C becomes small, the routing state cannot be changed, the spacing between the vertical grid lines 72 remains constant throughout, so the trace width C in this region can be narrowed.

The characteristic on this application utilized the line of grating 7 to walk, and the local flaring of middle zone subtly with display area 14 bottom forms flaring display area 14-2, has further increased the area of display area, and the size of the display area who increases is relatively less on the absolute value, but for narrower lower black border, the relative value of both is great, has obtained unexpected technological effect.

After the improvement, the externally expanded display area 14-2 corresponds to the straight routing area of the gate line 7 for controlling display, the transverse width of the externally expanded display area 14-2 is substantially equal to the width of the straight routing area of the gate line 7, that is, the externally expanded display area 14-2 does not cover the oblique routing area of the gate line 7, two ends of the lower black edge 1-1 correspond to the oblique routing area of the gate line 7 for controlling display, when viewed from the outside, the middle part of the lower black edge 1-1 looks relatively narrow, and two ends look relatively wide.

With continued reference to fig. 11 and 12, based on the feature that the display area 14 is partially expanded outward at the bottom, the appearance shape of the bottom of the screen can be referred to as follows:

first, the middle portion of the bottom of the display area 14 is partially extended outward in a straight line segment, that is, the lower edge 8 of the extended display area 14-2 is in a straight line shape (see fig. 11), two side edges of the extended display area 14-2 may be oblique lines 9 (or vertical lines) which are symmetrical left and right, and the lower edge of the main display area 14-1 and the lower edge of the extended display area 14-2 are in a step transition through the oblique lines 9 (or vertical lines).

Secondly, the middle part of the bottom of the display area 14 is partially outwardly expanded in the form of a circular arc line and/or a curved line segment, that is, the lower edge 8 of the outwardly expanded display area 14-2 is in the form of a circular arc line (see fig. 12), a curved line or a combination of the circular arc line and the curved line, and the lower edge of the main display area 14-1 and the lower edge of the outwardly expanded display area 14-2 are in smooth transition through the circular arc line 10 (or the curved line).

The width of the screen frame not only includes the width of the plastic or metal side of the mobile phone, but also includes the black edge 1 at the extreme edge of the screen. Therefore, if the scheme shown in fig. 11 is adopted, the relative sizes of the product frame 11, the black border 1 and the display area 14 are as shown in fig. 13, and within a range equal to the width of the package bend, a first distance L1 is provided between the lower edge of the main display area 14-1 and the lower edge of the orthographic projection of the bend perpendicular to the paper surface, a second distance L2 is provided between the expanded display area 14-2 and the lower edge of the orthographic projection of the bend perpendicular to the paper surface, and the first distance L1 is greater than the second distance L2. If the scheme shown in fig. 12 is adopted, the relative sizes of the product frame 11, the black border 1 and the display area 14 are as shown in fig. 14, the lower edges of the main display area 14-1 and the expanded display area 14-2 are smoothly transitioned, and the distance L3 between the lower edges of the main display area 14-1 and the expanded display area and the lower edge of the orthographic projection of the bending part perpendicular to the paper surface is gradually reduced from the left end to the right end towards the middle.

In order to ensure that the black border 1 can normally exert the function thereof, and simultaneously, considering the factors of errors and the like which may be generated in the actual manufacturing and assembling processes, the lower edge of the outward expansion display area 14-2 should be positioned at the inner side of the lower edge of the frame opening of the product frame 11, that is, the outward expansion display area 14-2 cannot be outward expanded without limitation, and can be outward expanded by a larger distance, but after the assembly, the black border can still be observed between the lower edge of the outward expansion display area 14-2 and the lower edge of the frame opening of the product frame 11, but the black border here can be narrower due to the existence of the outward expansion display area 14-2.

Compared with the screen without the externally expanded display area 14-2, the product adopting the externally expanded scheme has a visual effect of a large screen.

Based on the characteristic that the display area of the COP area can be locally expanded, the shapes of the display screen of the mobile phone can be referred to as the following:

the first form:

the outer edge of the upper black edge 1-2 is arc-shaped, the inner edge of the upper black edge 1-2 is arc-shaped, the outer edge of the lower black edge 1-1 is arc-shaped, and the lower edge of the outward expansion display area 14-2 is arc-shaped or curved and is in smooth transition with the lower edge of the main display area 14-1.

The second form:

the outer edge of the upper black edge 1-2 is in a linear shape, the inner edge of the upper black edge 1-2 is in a linear shape, the outer edge of the lower black edge 1-1 is in a linear shape, and the lower edge of the outward expansion display area 14-2 is in a horizontal straight line.

The shape is three:

the outer edge of the upper black edge 1-2 is arc-shaped, the inner edge of the upper black edge 1-2 is arc-shaped, the outer edge of the lower black edge 1-1 is linear, and the lower edge of the outward expansion display area 14-2 is arc-shaped or curved and is in smooth transition with the lower edge of the main display area 14-1.

The shape is four:

the outer edge of the upper black edge 1-2 is in a linear shape, the inner edge of the upper black edge 1-2 is in a linear shape, the outer edge of the lower black edge 1-1 is in a linear shape, and the lower edge of the outward expansion display area 14-2 is in a circular arc line or curve and is in smooth transition with the lower edge of the main display area 14-1.

The above embodiments are merely preferred embodiments of the present application, and are not limited thereto, and on the basis of the above embodiments, specific adjustments may be made according to actual needs, so as to obtain different embodiments. For example, the scheme is not limited to the flexible OLED screen, but is also applicable to hard-screen AMOLEDs and LCDs, and the like. This is not illustrated here, since many implementations are possible.

In addition to the display device, an electronic device, which may specifically be a mobile phone, a tablet computer, a wearable device, an on-board device, an Augmented Reality (AR)/Virtual Reality (VR) device, a notebook computer, a super-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), and the like, includes a housing and a display device disposed on the housing, where the display device is the display device described above, and further description of the rest of the structure of the electronic device is omitted herein with reference to the prior art.

The display device and the electronic device provided in the embodiments of the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are merely set forth to aid in understanding the core concepts of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims (10)

1. Display device has the display area and wraps the black edge of display area, its characterized in that, the display area includes main display area and is located main display area bottom and the outer display area that expands that is in the intermediate position, the lower limb of main display area divides left and right sides to be located expand the both sides of display area outward, the lower limb of main display area with the lower limb that expands the display area outward defines the interior border of black edge bottom.

2. The display device according to claim 1, wherein the lower edge of the flared display region is a horizontal straight line.

3. The display device according to claim 2, wherein two side edges of the extended display area are vertical lines or oblique lines which are symmetrical left and right, and the vertical lines or oblique lines form a transition line between the lower edge of the main display area and the lower edge of the extended display area.

4. The display device according to claim 1, wherein the lower edge of the flaring display area is in a circular arc or a curve and is in smooth transition with the lower edge of the main display area.

5. The display device of claim 1, wherein a lateral width of the flared display region is substantially equal to a width of a straight trace region of a display gate line.

6. The display device according to claim 1, comprising a product frame, wherein the lower edge of the expanded display area is located inside the lower edge of the frame opening of the product frame.

7. The display device according to claim 1, wherein a lower edge of the extended display area exceeds a lower boundary of the touch area.

8. The display device according to claim 1, wherein the vertical dimension n of the flared display area is 0.1-0.6 mm; or the vertical size n of the outward expansion display area is 0.1-0.5 mm; or the vertical size n of the outward expansion display area is 0.2-0.4 mm; or the vertical size n of the outward expansion display area is 0.2-0.3 mm.

9. The display device according to claim 1, wherein the black border comprises an upper black border located above the display area and a lower black border located below the display area, and a lower edge of the main display area and a lower edge of the extended display area define an inner edge of the lower black border;

the outer edge of the upper black edge is arc-shaped, the inner edge of the upper black edge is arc-shaped, the outer edge of the lower black edge is arc-shaped, and the lower edge of the outward expansion display area is arc-shaped or curved and is in smooth transition with the lower edge of the main display area;

or the outer edge of the upper black edge is linear, the inner edge of the upper black edge is linear, the outer edge of the lower black edge is linear, and the lower edge of the extended display area is horizontal and linear;

or, the outer edge of the upper black edge is arc-shaped, the inner edge of the upper black edge is arc-shaped, the outer edge of the lower black edge is linear, and the lower edge of the extended display area is arc-shaped or curved and is in smooth transition with the lower edge of the main display area;

or the outer edge of the upper black edge is in a linear shape, the inner edge of the upper black edge is in a linear shape, the outer edge of the lower black edge is in a linear shape, and the lower edge of the outward expansion display area is in a circular arc line or curve and is in smooth transition with the lower edge of the main display area.

10. An electronic device comprising a housing and a display device provided in the housing, wherein the display device is the display device according to any one of claims 1 to 9.

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