CN112687187A

CN112687187A - Display module and electronic equipment

Info

Publication number: CN112687187A
Application number: CN201910996131.2A
Authority: CN
Inventors: 李敬
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2021-04-20
Anticipated expiration: 2039-10-18
Also published as: CN112687187B

Abstract

The application provides a display module assembly and electronic equipment. The display module comprises a display screen, a first drive IC and a second drive IC; the display screen comprises a first display area and a second display area; the pixel density of the first display area is lower than that of the second display area; the first driving IC is in driving connection with the first display area, and the second driving IC is in driving connection with the second display area; the first driving IC and the second driving IC are used for driving the first display area and the second display area to have the same display brightness. The display module respectively drives the first display area and the second display area by arranging the two driving ICs to enable the two display areas to present the same display brightness.

Description

Display module and electronic equipment

Technical Field

The invention relates to the technical field of electronic equipment, in particular to a display module and electronic equipment.

Background

At present, the four-side curved screen becomes a future trend, and the main advantage of the four-side curved screen is that the peripheral black edges of the whole screen can be extended to the side faces through side face bending, so that the width of the black edges on the front face is reduced, and the flamboyance effect that four sides are not provided with frames is achieved. However, the four-sided curved screen often has a display difference in brightness between the curved portion of the screen and the flat display due to reasons such as display density, which makes the overall display of the display screen inconsistent and greatly affects the user experience.

Disclosure of Invention

The embodiment of the application provides a display module on one hand, and the display module comprises a display screen, a first drive IC and a second drive IC; the display screen comprises a first display area and a second display area; the pixel density of the first display area is lower than that of the second display area; the first driving IC is in driving connection with the first display area, and the second driving IC is in driving connection with the second display area; the first driving IC and the second driving IC are used for driving the first display area and the second display area to have the same display brightness.

Another aspect of the embodiments of the present application further provides an electronic device, where the electronic device includes a housing and the aforementioned display module; the shell and the display screen of the display module group are jointly surrounded to form an accommodating space, and the drive IC is arranged in the accommodating space.

The display module that this application embodiment provided is through setting up first drive IC and second drive IC, and first drive IC is connected with first display area drive, and second drive IC is connected with second display area drive, makes two display areas present the same display luminance through setting up two drive ICs drive first display area and second display area respectively.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of an overall structure of a display screen of a display module according to the present application before bending;

FIG. 2 is a schematic structural diagram of the display panel of the display module of FIG. 1 after being bent;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of an overall structure of an embodiment of a display module according to the present application;

FIG. 5 is a schematic cross-sectional view of a display module according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of an embodiment of an electronic device of the present application;

FIG. 7 is another schematic structural view of the embodiment of FIG. 6;

FIG. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of an electronic device according to another embodiment of the present application.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Likewise, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive step are within the scope of the present invention.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

The difficulty of the four-bend display panel structure lies in the problem of attaching four corner positions, wherein in order to ensure the normal display of the screen, the most important way is to ensure that the layer of panel (i.e. the most core part of the screen display) does not have the problem of pressing wrinkles, generally, a back film (such as PI film, PI is abbreviated as polyimide film, chinese polyimide film) with the thickness of 0.088mm is attached to the back surface of the layer, in the related art, in order to attach the panel (with the thickness of 0.03mm) at the corner position normally, some of the related arts reduce the risk of attaching the panel at the corner position by reducing PPI (abbreviated as pixel Per Inch, chinese indicates the number of Pixels Per Inch, also called pixel density), so that when the PPI on the front panel (non-bent region) is controlled by the same chip IC, the brightness of the corner position region is lower than that of other regions, therefore, the consistency of the lighting effect of the whole machine is poor, and the scheme of the application provides a mode for solving the problem.

Referring to fig. 1, fig. 1 is a schematic overall structure diagram of an embodiment of a display module according to the present application; it should be noted that the terminal device in the present application may include an electronic device with a camera assembly, such as a mobile phone, a tablet computer, a notebook computer, and a wearable device. The display module in this embodiment can be used in electronic devices including but not limited to the following structures: a display screen 10, a first driver IC20, and a second driver IC 30. The terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Specifically, the display screen 10 includes a first display area 11 and a second display area 12. The number of the first display regions 11 may be one or more. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. For example, in the display module shown in fig. 1, the number of the first display regions 11 is four, and in the electronic device shown in fig. 6, the number of the first display regions 11 is one.

The pixel density of the first display region 11 is lower than that of the second display region 12.

The first driving IC20 is in driving connection with the first display area 11, and specifically, when the number of the first display areas 11 is one, the first driving IC20 is in driving connection with the one first display area 11; when the number of the first display regions 11 is plural, the first driving IC20 is in driving connection with all of the plurality of first display regions 11 or the first driving IC20 is in driving connection with a portion of the first display regions 11.

The second driving IC 30 is in driving connection with the second display area 12; the first and second driving

ICs

20 and 30 drive the first and

second display regions

11 and 12 to have the same display luminance.

Since the pixel density of the first display region 11 is lower than that of the second display region 12, when the driving currents of the first and second driving

ICs

20 and 30 are as large, the display luminance of the first display region 11 may be lower than that of the second display region 12. By setting the driving current of the first driving IC20 to the first display area 11 to be greater than the driving current of the second driving IC 30 to the second display area 12, the difference between the display brightness of the first display area 11 and the display brightness of the second display area 12 can be reduced or even eliminated, so that the display brightness finally presented by the first display area 11 and the second display area 12 is the same or approximately the same.

The display screen 10 includes a main body 13 and a curved portion 14, the curved portion 14 and the side of the main body 13 integrally extend, the first display area 11 corresponds to the curved portion 14, and the second display area 12 corresponds to the main body 13. The second display area 12 is arranged at least partly surrounding the first display area 11.

Referring to fig. 2 and fig. 3, fig. 2 is a schematic structural diagram of a display screen of the display module of the embodiment of fig. 1 after being bent, and fig. 3 is an enlarged schematic structural diagram of a position a in fig. 2. The body portion 13 may be of planar construction. The bending portion 14 includes a first bending portion 141, a second bending portion 142, and a first connecting portion 143, the first bending portion 141 and the second bending portion 142 are respectively extended integrally with two adjacent sides of the main body portion 13, and the first connecting portion 143 is connected between the first bending portion 141 and the second bending portion 142 and is extended integrally with the main body portion 13 corresponding to a corner portion of the main body portion 13 (that is, a connection position of adjacent sides of the main body portion 13, hereinafter the same).

In one embodiment, the first display area 11 corresponds to the first bending portion 141, the second bending portion 142, and the first connecting portion 143 of the bending portion 14, and the second display area 12 corresponds to the main body portion 13. In the present embodiment, the first display area 11 is partially surrounded by the second display area 12.

In one embodiment, the first bending portion 141, the second bending portion 142, and the first connecting portion 143 extend to be bent toward the same side of the main body portion 13. The first display area 11 corresponds to the first connection portion 143; the second display region 12 corresponds to the main body portion 13, the first curved portion 141, and the second curved portion 142.

As shown in fig. 1 and 2, the main body 13 of the present embodiment has a rectangular structure, and the bending portion 14 further includes a third bending portion 144, a fourth bending portion 145, a second connecting portion 146, a third connecting portion 147, and a fourth connecting portion 148. Wherein the third bending portion 144 and the first bending portion 141 are respectively integrally extended from two opposite sides of the main body 13; the fourth curved portion 145 and the second curved portion 142 are integrally extended from opposite sides of the body portion 13. The second connection portion 146, the third connection portion 147, and the fourth connection portion 148 are disposed corresponding to one corner of the main body portion 13; the second connecting portion 146 is connected between the second bending portion 142 and the third bending portion 144; the third connecting portion 147 is connected between the third bending portion 144 and the fourth bending portion 145; the fourth connection portion 148 is connected between the fourth bending portion 145 and the first bending portion 141; the first curved portion 141, the second curved portion 142, the third curved portion 144, the fourth curved portion 145, the first connection portion 143, the second connection portion 146, the third connection portion 147, and the fourth connection portion 148 are curved and extend toward the same side of the body portion 13.

Optionally, as shown in fig. 1 and fig. 2, the first display area 11 corresponds to the first connection portion 143, the second connection portion 146, the third connection portion 147 and the fourth connection portion 148; the second display region 12 corresponds to the main body portion 13, the first curved portion 141, the second curved portion 142, the third curved portion 144, and the fourth curved portion 145. In this case, the number of the first display regions 11 is four, the main body 13, the first curved portion 141, the second curved portion 142, the third curved portion 144, and the fourth curved portion 145 are integrally connected, and the number of the second display regions 12 is one.

Optionally, in an embodiment, the first display area 11 corresponds to the first connection portion 143, the second connection portion 146, the third connection portion 147, the fourth connection portion 148, the first bending portion 141, the second bending portion 142, the third bending portion 144, and the fourth bending portion 145; the second display region 12 corresponds to the main body portion 13. The number of the first display areas 11 is one at this time, and the number of the second display areas 12 is one.

It should be noted that fig. 2 is only one of the structural schematic diagrams of the display screen of the display module in the embodiment of fig. 1 after being bent, and of course, other shapes are possible, for example, a sector shape similar to that of fig. 1, and the specific shapes of the first display area 11 and the bent portion 14 are not limited to those described in fig. 1 and fig. 2 and the description in this application.

The terms "first", "second" and "third" in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature.

As shown in fig. 1, the first driver IC20 and the second driver IC 30 are respectively provided at opposite ends of the main body portion 13, and are provided at a side of the main body portion 13 where the bent portion 14 is provided. Specifically, in the present embodiment, the main body 13 has a rectangular structure, the number of the first display regions 11 is four, the first driver ICs 20 and the second driver ICs 30 are respectively disposed at two opposite ends of the main body 13, the first driver ICs 20 are disposed between two first display regions 11 at the corresponding ends, and the second driver ICs 30 are disposed between two first display regions 11 at the corresponding ends. Optionally, in some embodiments, the first driving IC20 is in driving connection with the first connection portion 143, the second connection portion 146, the third connection portion 147 and the fourth connection portion 148 corresponding to the first display area 11; the second driving IC 30 is in driving connection with the second display region 12, and the second display region 12 includes the main body portion 13, the first bending portion 141, the second bending portion 142, the third bending portion 144, and the fourth bending portion 145, which are integrally connected.

Specifically, as shown in fig. 1, the first driving IC20 is disposed between the first display regions 11 corresponding to the first and

second connection portions

143 and 146. The second driving IC 30 is disposed between the first display regions 11 corresponding to the third and

fourth connection parts

147 and 148.

In some other embodiments, the first driving IC20 may also be disposed between the first display regions 11 corresponding to the first connection portion 143 and the fourth connection portion 148. The second driving IC 30 may also be disposed between the first display regions 11 corresponding to the second and

third connection portions

146 and 147.

Referring to fig. 4, fig. 4 is a schematic overall structure diagram of an embodiment of the display module of the present application. The display module in this embodiment further includes a third driver IC40 on the basis of the display module in the embodiment of fig. 1, and the first driver IC20 is in driving connection with the first connection portion 143 and the fourth connection portion 148 corresponding to the first display region 11; the third driving IC40 is in driving connection with the second connection portion 146 and the third connection portion 147 corresponding to the first display region 11.

Specifically, the first, second and

third driving ICs

20, 30 and 40 are disposed side by side at positions between the two first display regions 11 corresponding to the first and

second connection portions

143 and 146. The first driver IC20 is close to the first connection portion 143, the third driver IC40 is close to the second connection portion 146, and the second driver IC 30 is located between the first driver IC20 and the third driver IC 40. The benefit that sets up like this is when carrying out the circuit and arranging, and the circuit that is close to first drive IC20 of first connecting portion 143 one side need not walk the line and wind to second connecting portion 146 one side, and is same, need not wind first connecting portion 143 when being close to third drive IC40 of second connecting portion 146 and walk the line, can realize that the individual layer is walked the line, makes circuit layout reasonable more convenient.

Referring to fig. 5, fig. 5 is a schematic cross-sectional structure diagram of a display module according to an embodiment of the present application. In this embodiment, the display module further includes an IC supporting pad 40, and the IC supporting pad 40 is attached to the inner surface of the bending portion 14.

At least one of the first and

second driver ICs

20 and 30 is disposed on the IC support pad 40. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

The support pad 40 at least comprises a first surface 41 and a second surface 42 which are opposite to each other, and the shape of the first surface 41 is matched with the inner surface of the bending part 14 and is attached to the inner surface of the bending part; the second surface 42 is a plane, and at least one of the first driving IC20 and the second driving IC 30 is attached to the second surface 42.

Specifically, as shown in fig. 5, fig. 5 only shows a schematic structure of the first driving IC20 attached to the IC support pad 40, and actually, fig. 5 may also represent the second driving IC 30.

Preferably, the surface of the IC support pad 40 that is attached to the curved portion 14 is adapted to the curvature of the curved surface of the curved portion 14 of the display panel 10, the second surface 42 is inclined, and the driver IC (which may be the first driver IC20 or the second driver IC 30) is attached to the inclined plane. The arrangement of the accommodating groove formed by skillfully accommodating the driving IC inside the bending part 14 of the display screen 10 can increase the accommodating space of other structures or components of the electronic equipment adopting the display module, and reduce the size of the whole electronic equipment.

Alternatively, in some embodiments, the first driver IC20 and the second driver IC 30 are disposed as shown in fig. 1, and the two IC support pads 40 may be disposed on the inner surfaces of the bent portions 14 on two opposite sides of the display screen 10.

Alternatively, in some embodiments, the first driver IC20, the second driver IC 30 and the third driver IC40 are disposed as shown in fig. 4, one or more IC support pads 40 may be disposed, and the first driver IC20, the second driver IC 30 and the third driver IC40 are disposed on the IC support pads 40. Fig. 5 shows a schematic structure of the first driver IC20 attached to the IC support pad 40, and actually, the first driver IC may be the third driver IC 40.

The application also provides an electronic device.

Referring to fig. 6 and 7, fig. 6 is a schematic structural diagram of an embodiment of an electronic device according to the present application. Fig. 7 is another schematic diagram of the embodiment of fig. 6. The electronic device comprises a shell 50 and the display module described in the previous embodiment; the housing 50 and the display screen 10 of the display module are commonly enclosed to form an accommodating space 51, and the driving IC (which may be the first driving IC20, the second driving IC 30, or the third driving IC 40) is disposed in the accommodating space 51.

In this embodiment, the electronic device further includes a functional device 60, and the functional device 60 is disposed in the accommodating space 51 and is disposed corresponding to the first display area 11 of the display screen 10, so as to collect or transmit signals through the first display area 11.

The functional device comprises at least one of a camera module, a fingerprint module and a sensor module.

As shown in fig. 1, in some embodiments, when the functional device 60 is disposed corresponding to the first display area 11, such as the bend 143, the bend 146, the bend 147, or the bend 148 of fig. 1, the first display area 11 is partially surrounded by the second display area 12.

Referring to fig. 8 and 9, fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application, and fig. 9 is a schematic structural diagram of an electronic device according to another embodiment of the present application. It can be considered that fig. 8 is an electronic device of a conventional bang screen, and fig. 9 is an electronic device of a conventional drip screen.

Specifically, the display screen 10 is set to have a water drop shape or a bang shape corresponding to an area as the first display area 11, an area other than the first display area 11 is the second display area 12, and when the function device 60 is set to correspond to the first display area 11, the first display area 11 is partially surrounded by the second display area 12.

As shown in fig. 6, in some embodiments, when the functional device 60 is disposed corresponding to the first display area 11, the first display area 11 may be completely surrounded by the second display area 12, so that the arrangement may avoid forming a hole on the display screen 10, and may actually realize a full screen; since the pixel density of the first display area 11 is lower than that of the second display panel 12, the display luminance which is finally presented by the first display area 11 and the second display area 12 can be the same by providing two or more driver ICs.

The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the present invention through the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A display module is characterized by comprising a display screen, a first drive IC and a second drive IC; the display screen comprises a first display area and a second display area; the pixel density of the first display area is lower than that of the second display area; the first driving IC is in driving connection with the first display area, and the second driving IC is in driving connection with the second display area; the first driving IC and the second driving IC are used for driving the first display area and the second display area to have the same display brightness.

2. The display module of claim 1, wherein the driving current of the first driving IC to the first display area is greater than the driving current of the second driving IC to the second display area.

3. The display module of claim 1, wherein the display screen comprises a main body portion and a curved portion; the bending portion extends along the side edge of the main body portion, the first display area corresponds to the bending portion, and the second display area corresponds to the main body portion.

4. The display module according to claim 3, wherein the curved portion comprises a first curved portion, a second curved portion and a first connecting portion; the first bending part and the second bending part respectively extend integrally with two adjacent side edges of the main body part, and the first connecting part is connected between the first bending part and the second bending part and extends integrally with the main body part corresponding to the corner position of the main body part; the first bending portion, the second bending portion, and the first connecting portion are bent and extended toward the same side of the main body portion; the first display area corresponds to the first connecting part; the second display region corresponds to the main body portion, the first curved portion, and the second curved portion.

5. The display module according to claim 4, wherein the main body portion has a rectangular structure, and the curved portion further comprises a third curved portion, a fourth curved portion, a second connecting portion, a third connecting portion and a fourth connecting portion; the third bending part and the first bending part are respectively and integrally extended with two opposite side edges of the main body part; the fourth bending part and the second bending part are respectively and integrally extended with two opposite side edges of the main body part; the second connecting part, the third connecting part and the fourth connecting part are respectively arranged corresponding to one corner of the main body part; the second connecting part is connected between the second bending part and the third bending part; the third connecting part is connected between the third bending part and the fourth bending part; the fourth connecting part is connected between the fourth bending part and the first bending part; the first curved portion, the second curved portion, the third curved portion, the fourth curved portion, the first connection portion, the second connection portion, the third connection portion, and the fourth connection portion extend in a curved manner toward the same side of the main body portion; the first display area corresponds to the first connecting part, the second connecting part, the third connecting part and the fourth connecting part; the second display region corresponds to the main body portion, the first curved portion, the second curved portion, the third curved portion, and the fourth curved portion.

6. The display module according to claim 5, further comprising a third driver IC, wherein the first driver IC is in driving connection with the first connection portion and the fourth connection portion corresponding to the first display region; the third driving IC is in driving connection with the second connecting portion and the third connecting portion corresponding to the first display area.

7. The display module of claim 3, further comprising an IC support pad attached to an inner surface of the curved portion, wherein at least one of the first and second driver ICs is disposed on the IC support pad.

8. The display module assembly of claim 7, wherein the support pad comprises at least a first surface and a second surface opposite to each other, and the first surface is shaped to fit with and conform to the inner surface of the curved portion; the second surface is a plane, and at least one of the first driver IC and the second driver IC is attached to the second surface.

9. The display module of claim 1, wherein the second display area is at least partially disposed around the first display area.

10. An electronic device, comprising a housing and the display module of any one of claims 1-9; the shell and the display screen of the display module group are jointly surrounded to form an accommodating space, and the drive IC is arranged in the accommodating space.

11. The electronic device of claim 10, further comprising a functional device disposed in the accommodating space and corresponding to the first display area of the display screen, so as to collect or transmit signals through the first display area.

12. The electronic device of claim 11, wherein the functional component comprises at least one of a camera module, a fingerprint module, and a sensor module.