WO2018126643A1

WO2018126643A1 - Mobile terminal and method for controlling backlight source

Info

Publication number: WO2018126643A1
Application number: PCT/CN2017/093776
Authority: WO
Inventors: 梁超; 曲廷; 许冬艳; 郭海超
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-01-05
Filing date: 2017-07-21
Publication date: 2018-07-12
Also published as: JP2019507360A; JP6501922B2; CN108282576A; CN108282576B

Abstract

A mobile terminal and a method for controlling a backlight source. The mobile terminal comprises two display screens, wherein the two display screens are rotatably connected by means of a rotating shaft, and each display screen comprises a housing and a backlight module accommodated in the housing; and two communicating windows respectively arranged on the first side of the housing of each display screen, wherein a first side of one display screen of the two display screens abuts a first side of the other display screen of the two display screens by means of the rotating shaft; and when the display faces of the two display screens are located in the same plane by means of turning, the communicating window of each display screen is opened, the backlight modules of the two display screens are in communication with each other so as to form a common backlight module, and the two display screens share the common backlight module.

Description

Mobile terminal and backlight control method

Technical field

The present disclosure relates to the field of communications technologies, and, for example, to a mobile terminal and a method of controlling a backlight.

Background technique

With the development and advancement of technology, communication technology has developed rapidly and made great progress. With the improvement of communication technology, intelligent electronic products have been widely popularized, and intelligent terminals or mobile terminals have become an indispensable part of people's lives. Smart terminals include smart phones, smart TVs and computers. While mobile terminals are popular, many types of mobile terminals have been liked by different users, such as large-screen mobile terminals (such as mobile terminals with display screens larger than 5.5 inches) and dual-screen mobile terminals. .

The dual-screen mobile terminal is the evolution of the clamshell machine in the era of the function machine. The dual-screen mobile terminal not only needs to realize the dual-screen closed state, the mobile terminal has both sides of the screen, and also requires the two screens to be close when the state is open, and the two screens can be Display two parts of an image separately.

In the dual-screen mobile terminal in the related art, two display screens respectively use respective backlights, but even two display screens of the same specification may cause a certain difference in brightness of the backlight due to various reasons, so when When the two display screens are combined and display the two parts of the same display screen, the brightness of the two display screens may be inconsistent, which reduces the user experience.

Summary of the invention

A control method for a mobile terminal and a backlight, which solves the problem that in the dual-screen mobile terminal in the related art, when two display screens are merged and respectively display two parts of the same display surface, the brightness of the two display screens is different The problem that the overall display of the mobile terminal is not good.

A mobile terminal, a mobile terminal, including

Two display screens, wherein the two display screens are rotatably connected by a rotating shaft, each display screen comprising a housing and a backlight module housed in the housing;

Two communication windows respectively disposed on a first side of the outer casing of each display screen, wherein the two a first side of one of the display screens and a first side of the other of the two display screens are docked by the rotating shaft, when the display surfaces of the two display screens are flipped In the same plane, the connection window of each display screen is opened, and the backlight modules of the two display screens are connected to each other to form a common backlight module, and the two display screens share the common backlight module.

A backlight control method is applied to the above mobile terminal, wherein a backlight of each display screen of the mobile terminal includes a first light source group and a second light source group, and the second light source group is located near two The display is rotated to the side of the connection, the method comprising:

Detecting whether the mobile terminal is in a first state, where the first state is that two display screens of the mobile terminal are in the same plane by flipping;

If the mobile terminal is in the first state, the second light source group controlling one of the two display screens does not work;

If the mobile terminal is not in the first state, the first light source group and the second light source group in the display screen that need to be displayed are controlled to work simultaneously.

A computer readable storage medium storing one or more programs executable by a computer, the one or more programs being executed by the computer to cause the computer to perform a method of controlling a backlight as provided above.

In the above method for controlling a mobile terminal and a backlight, the mobile terminal includes two display screens, wherein the two display screens are rotatably connected by a rotating shaft, and each display screen includes an outer casing and is received in the outer casing. a backlight module; and two communication windows respectively disposed on the first side of the outer casing of each display screen, wherein the first side of the one of the two display screens and the two displays The first side of the other display screen in the screen is docked by the rotating shaft. When the display surfaces of the two display screens are in the same plane by flipping, the connection window of each display screen is opened, and the backlights of the two display screens are turned on. The modules are interconnected to form a common backlight module, and the two display screens share the common backlight module. By providing a communication window on the side walls of the two display screens, when the display surfaces of the two display screens are in the same plane by flipping, the communication window on the side walls is opened, so that the backlight modules of the two display screens The common backlight module is formed, and the light in the common backlight module is evenly distributed through the conduction of the backlight and the reflection of the reflector, so that the amount of light in the backlight module of the two displays is the same, so that the two displays are The brightness is consistent.

DRAWINGS

1 is a perspective view of a mobile terminal in a first state according to an alternative embodiment of the present invention;

Figure 2 is a perspective view of the mobile terminal shown in Figure 1 in a second state;

Figure 3 is a side elevational view of the mobile terminal shown in Figure 1;

Figure 4 is an enlarged plan view showing a portion of the section taken at IV-IV in Figure 1;

Figure 5 is an enlarged view of a partial cross section shown at V-V in Figure 1;

FIG. 6 is a flowchart of a method for controlling a backlight provided in an embodiment.

detailed description

The technical solutions in the embodiments will be described below with reference to the accompanying drawings in the embodiments.

Referring to FIG. 13, FIG. 1 is a perspective view of a mobile terminal in a first state according to an embodiment, and FIG. 2 is a perspective view of the mobile terminal shown in FIG. 3 is a side view of the mobile terminal shown in FIG. 1. The mobile terminal 100 provided in this embodiment includes two display screens 10 and two communication windows 120. The two display screens 10 are rotatably connected by a rotating shaft 20. Each display screen 10 further includes a display area 101 and a peripheral area 102 surrounding the display area 101 for implementing the display function of each display screen.

The mobile terminal 100 of this embodiment may have two usage states. When the mobile terminal 100 is in the first state, the back sides of the two display screens 10 are oppositely disposed as shown in FIG. When the mobile terminal 100 is shown in the second state, one of the display screens 10 can be flipped by connecting the rotating shafts 20 of the two display screens 10 such that the display surfaces of the two display screens are in the same plane, as shown in FIG. In the mobile terminal 100, each display screen 10 can be used alone or simultaneously.

Each display screen 10 includes a housing 110 and a backlight module 170 (shown in FIG. 4) received in the housing 110. A communication window is disposed on the first side 111 of the housing 110 of each display screen 10. 120. The first side of one of the two display screens and the first side of the other of the two display screens are docked by the rotating shaft 20, and the first side edge 111 can also be disposed. There is a reset post 130 for controlling the communication window 120.

Optionally, the communication window 120 is located at a center of the first side 111, and the communication window 120 corresponds to a position of the backlight module 170 of each of the display screens 10. The reset column 130 is located at the center. The communication window 120 is disposed on both sides of the rotation axis 20, and a through hole 1111 (shown in FIG. 4) is disposed on the first side 111 at a position corresponding to the reset column 130. When the mobile terminal 100 is in the first state, The reset post 130 passes through the through hole 1111 and protrudes from the outer casing 110.

When the mobile terminal 100 is in the second state, that is, when the display surfaces of the two display screens 10 are in the same plane by flipping, the communication window 120 on the first side of each display screen 10 is opened, and the receiving window 120 is opened. The two backlight modules 170 of the two display screens 100 are connected to each other to form a common backlight module. The two display screens share the common backlight module. At this time, the first side 111 of the other display screen 10 is oriented. The reset post 130 applies pressure such that the reset post 130 retracts into the outer casing 110.

4 is an enlarged view of a partial cross section taken along line IV-IV of FIG. 1, and FIG. 5 is an enlarged view of a partial cross section shown at V-V of FIG. 1. As shown in FIG. 4 and FIG. 5 , each display screen 10 may further include a light shielding plate 140 , a first connecting member 150 , a second connecting member 160 , a backlight module 170 , and a display panel 180 . The light shielding plate 140 , the first connecting member 150 , the second connecting member 160 , the backlight module 170 , and the display panel 180 may be received in the outer casing 110 .

Optionally, the visor 140 is disposed corresponding to the communication window 120, and the visor 140 is parallel to the first side 111 and located inside the first side 111, and the visor 140 is The area is larger than the area of the communication window 120 such that the light shielding plate 140 can completely block the communication window 120.

The light shielding plate 140 may further be provided with a through hole 141 corresponding to the through hole 1111 on the first side 111, and the through hole 141 communicates with the through hole 1111 for the reset column 130. The through hole 141 and the through hole pass through, and the reset post 130 protrudes from the outer casing 110.

The first connecting member 150 may be disposed in the display screen 10, and the first end of the first connecting member 150 is fixed on an inner wall of the outer casing 110, that is, perpendicular to the first side 111 The first end of the first connecting member 150 extends to the top wall 112, and the second end of the first connecting member 150 is coupled to the light blocking plate 140. The first connecting member 150 may be a resilient connecting member. Optionally, in this embodiment, the first connecting member 150 may be a spring.

A mounting plate 113 is protruded from a side wall 112 of the outer casing 110 facing a bottom wall opposite to the top wall 112. The mounting plate 113 is parallel to the first side 111, and the mounting plate 113 Corresponding to the peripheral regions of the display screen 10 at both ends of the display shaft 10 in the axial direction of the rotating shaft 20, the mounting plate 113, the first side 111 and the top wall 112 together form a U-shaped groove. The first connecting member 150 and the light shielding plate 140 are located in the U-shaped groove.

A mounting slot 1131 is disposed on a side of the mounting plate 113 adjacent to the U-shaped slot, the second connecting member 160 is received in the mounting slot 1131, and the first end of the second connecting member 160 is fixed to Said The second end of the second connecting member 160 is connected to the reset post 130 on the bottom surface of the mounting groove 1131. The second connecting member 160 may be a resilient connecting member. Optionally, in this embodiment, the second connecting member 160 may be a spring.

One end of the reset post 130 can be connected to the second connecting member 160, and one end of the reset post 130 connected to the second connecting member 160 is received in the mounting slot 1131, and can follow the first The two connecting members 160 are moved in the mounting groove 1131, and one end of the reset post 130 not connected to the second connecting member 160 can pass through the through hole 141 and the through hole 1111, thereby extending the The top surface of the outer casing 110 may be disposed with a cut surface 131 inclined toward the inside of the outer casing 110, and the tip end of the cut surface 131 extends outward to form a top pillar 132. It is ensured that when the two display screens are merged, that is, when the display surfaces of the two display screens 10 are in the same plane by flipping, the reset post 130 can be pressed by the first side opposite to the reset post 130, so that The reset post 130 can be retracted into the outer casing 110.

The backlight module 170 can be stacked on the display panel 180. The backlight module 170 can include a reflective sheet 171, a light guide plate 172, an optical film set 173, and a light source (not shown). The optical film The group 173 is located between the light guide plate 172 and the display panel 180 , and the light guide plate 172 is located between the optical film set 173 and the reflective sheet 171 . The light source is disposed in parallel with the light guide plate 172 , and the light source is located at an end of the light guide plate 172 away from the light shielding plate 140 . In this implementation, the backlight modules of the two display screens can use the same reflector together.

When the mobile terminal 100 is in the first state, that is, the back sides of the two display screens 10 are oppositely disposed, the second connecting member 160 is in a natural state, is not subjected to force, and the second connecting member 160 is There is no force between the reset posts 130. One end of the reset post 130 sequentially passes through the through holes 141 and the through holes 1111 on the first side 111 and protrudes from the outer casing 110.

The reflector 171 extends from the communication window 120 and extends into the communication window of another display screen after the rotation shaft 20 extends into the backlight module of another display screen. The reflector 171 and the reflector The two ends of the visor 140 in the vertical direction may be aligned with the light guide plates of the two backlight modules, or the light guide plates of the two backlight modules may be added.

The light blocking plate 140 stretches the first connecting member 150 under the engagement of the resetting post 130, the light blocking plate 140 is away from the top wall 112, and blocks the communication window 120, the backlight The bottom surface of the plastic frame of the module 170 is adjacent to the end of the communication window 120 and the light shielding plate 140 is clamped together to ensure that the communication window 120 is completely closed, so that the backlight module 170 does not Light leaks.

When the mobile terminal 100 changes from the first state to the second state, that is, the mobile terminal 100 is oppositely disposed from the back of the two display screens 10, the display surfaces of the two display screens 10 are the same by flipping. When the plane is flat, the reset post 130 is pressed by the first side of the display screen opposite to the reset post 130, and the second connecting member 160 is pressed, and the reset post 130 is directed into the U-shaped groove. Move to retract into the outer casing 110.

Since most of the reset post 130 is retracted into the display screen 10, the remaining portion of the top post 132 is also located in the through hole 141 and the through hole 1111, and the visor 140 does not have the The limit of the column 130 is reset, and the visor 140 is subjected to the pulling force of the first connecting member 150. The light shielding plate 140 is translated in the direction of the top wall 112 by the first connecting member 150, opens the communication window 120, and exposes the reflective sheet 171 of the backlight module 170 and at least a portion thereof. Light guide plate 172. The backlight modules 170 of the two display screens 10 are connected through the communication window 120 to form a common backlight module, and the two display screens can use a common backlight module in common.

The reflective sheet 171 is located in the two backlight modules through the communication window 120. Since a common backlight module and a reflective sheet 171 are used, the backlights of the two display screens are uniform in light and have the same brightness.

The two backlight modules use a retroreflective sheeting 171 to prevent the light from overflowing from the junction of the two display screens 10 when the two backlight modules 170 are connected, thereby causing waste of the backlight. In order to prevent light from overflowing from the connection of the two display screens 10, it is also possible to provide an adapted convex wall on the outer casing of the two first side edges 111 of the two display screens 10 corresponding to the periphery of the connection window 120. The grooves, which are mated with the convex walls and the grooves, form a closed space at the junction of the two display screens 10 to avoid light spillage.

The inside of each display screen 10 may further be provided with a receiving device, and the receiving device may be located on a side of the outer casing 110 opposite to the first side 111, and the reflective sheet 171 is connected to the inner side. Two ends of the window 120 in the vertical direction are respectively connected to the receiving device. When the display surfaces of the two display screens 10 are in the same plane by flipping, the reflective sheet 171 is in a direction perpendicular to the connecting window 120. The two ends are respectively received in the receiving device, and the reflective sheet 171 is stretched and laid flat on the bottom of the common backlight module.

When the mobile terminal 100 changes from the second state to the first state, that is, the mobile terminal 100 is in the same plane from the display surfaces of the two display screens 10, the back of the two display screens 10 are turned by flipping. When the relative setting is made, the resetting post 130 moves outwardly under the force of the second connecting member 160 until the cutting surface 131 partially protrudes from the outer casing 110, in the process, The cut surface 131 on the reset column 130 continuously presses the side wall of the through hole 141, so that the light shielding plate The 140 moves in the direction of the bottom wall of the outer casing 110 until the visor 140 abuts against the retroreflective sheeting 171. At this time, the mobile terminal 100 returns to the first state.

FIG. 6 is a flowchart of a method for controlling a backlight according to an embodiment of the present invention. As shown in FIG. 6, the method may be applied to the mobile terminal 100 provided by the foregoing embodiment. The backlight of each display screen 10 of the mobile terminal 100 includes a first light source group and a second light source group. The two light source groups are adjacent to one side of the two display screens rotatably connected, and the method includes the following steps.

In step 601, it is detected whether the mobile terminal is in a large screen state, wherein the large screen state is that the two display screens of the mobile terminal are in the same plane by flipping.

Since the mobile terminal 100 has two display screens 10, the user can use one of the display screens 10, and the display surfaces of the two display screens 10 can also be in the same plane, that is, the large screen state of the mobile terminal 100 is used. Large screens are available for movies and office.

Therefore, in this step, the mobile terminal can detect the state of the mobile terminal in real time, and detect whether the mobile terminal is in a large screen state.

In step 602, if the mobile terminal is in a large screen state, the second light source group that controls one of the two display screens does not work.

When the two display screens of the dual-screen mobile terminal are flipped so that the display surfaces of the two display screens are in the same plane, that is, when the dual-screen mobile terminal is in the large screen state, the display size of the dual-screen mobile terminal becomes correspondingly larger. For example, suppose that each display screen is a 4-inch screen. Then, when the two display screens are flipped so that the display surfaces are in the same plane, the display screen of the dual-screen mobile terminal becomes a 6-inch screen. A 4-inch screen backlight assumes 8 backlights, so the two displays have a total of 16 backlights, but a 6-inch display requires only 12 backlights, so that the two screens in the related art If the mobile terminal uses the backlight mode in the related art, it may cause waste of resources, and at the same time increase the power consumption of the mobile terminal and waste power.

In this embodiment, when the mobile terminal 100 is in a large screen state, that is, when the two display screens 10 are turned over and the display surfaces are in the same plane, the backlight modules of the two display screens 10 are connected to each other to share a common backlight mode. Grouping, and dividing the backlight in each backlight module into a first light source group and a second light source group.

Therefore, in this step, when the mobile terminal 100 is in a large screen state, that is, the mobile terminal is in the second state, the two display screens 10 are turned over after the display surface is in the same plane, and the mobile terminal 100 controls The second light source group in one of the two display screens 10 does not work, which satisfies The need for backlight brightness in a large screen state reduces power consumption and prolongs the use time of the mobile terminal 100. Wherein, the second light source group does not work, that is, the second light source group is not illuminated.

In step 603, if the mobile terminal is not in a large screen state, the first light source group and the second light source group in the display screen that needs to be displayed are controlled to work simultaneously.

In this step, when the mobile terminal 100 detects that the mobile terminal 100 is not in a large screen state, that is, when the back sides of the two display screens 10 are oppositely disposed, or when the two display screens 10 are each working Then, the mobile terminal 100 can control the display screen 10 that needs to be displayed to operate, that is, control the first light source group and the second light source group in the display screen 10 to be displayed to work simultaneously. Wherein, the first light source group and the second light source group work simultaneously, that is, both the first light source group and the second light source group are illuminated.

The mobile terminal and the control method of the backlight provided by the embodiment, the mobile terminal includes two display screens and two communication windows, wherein the two display screens are rotatably connected by a rotating shaft, and each display screen includes an outer casing and a backlight module housed in the outer casing, a first side of the outer casing of each display screen is provided with a communication window, and a first side of the display screen and one of the two display screens The first side of the other display screen in the screen is docked by the rotating shaft. When the display surfaces of the two display screens are in the same plane by flipping, the connection window of each display screen is opened, and the two backlight modules are mutually connected. Connected to form a common backlight module, the two display screens share the common backlight module.

By providing a communication window on the side walls of the two display screens, when the display surfaces of the two display screens are in the same plane by flipping, the communication window on the side walls is opened, so that the backlight modules of the two display screens The common way is to form a common backlight module. After the conduction of the backlight panel and the reflection of the reflector, the light in the common backlight module is evenly distributed, so that the amount of light in the backlight modules of the two display screens is the same, so that the brightness of the two display screens is uniform. When the display surfaces of the two display screens are in the same plane, part of the backlights of one of the two display screens can be controlled to meet the brightness requirements of the mobile terminal, reducing power consumption and prolonging the use time of the mobile terminal.

The method in the above embodiment may be implemented by a central processor, a digital signal processor (DSP) or a Field Programmable Gate Array (FPGA), a central processing unit, a DSP, and a FGPA. Can be integrated in the mobile terminal. The central processing unit, DSP, and FGPA can include a computer readable storage medium storing executable instructions arranged to perform the methods described above. All or part of the steps of the method of the above embodiment may be completed by hardware related to program instructions, and the program may be stored in a computer readable medium, and when executed, the program includes the following steps:

Detecting whether the mobile terminal is in a large screen state, wherein the large screen state is that two display screens of the mobile terminal are in the same display surface by flipping;

If the mobile terminal is in a large screen state, the second light source group of one of the display screens does not work;

If the mobile terminal is not in a large screen state, the first light source in the display screen that needs to be displayed is combined to work simultaneously with the second light source group.

The computer readable storage medium may be a non-transitory storage medium, such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like. The medium of the code can also be a transient storage medium.

Industrial applicability

Claims

A mobile terminal, including

Two display screens, wherein the two display screens are rotatably connected by a rotating shaft, each display screen comprising a housing and a backlight module housed in the housing;

Two communication windows respectively disposed on a first side of the outer casing of each display screen, wherein the first side of one of the two display screens and the other of the two display screens The first side of the display screen is docked by the rotating shaft. When the display surfaces of the two display screens are in the same plane by flipping, the connection window of each display screen is opened, and the backlight modules of the two display screens are connected to each other. A common backlight module, the two display screens sharing the common backlight module.
The mobile terminal according to claim 1, wherein a position of the communication window corresponds to a position of the backlight module, and a light shielding plate is disposed at the communication window, the light shielding plate and the first side Parallelly, the visor is located inside the first side edge and is received in the outer casing. When the display surfaces of the two display screens are in the same plane by flipping, the visor is along the display surface of the display screen Moving in a vertical direction, opening the communication window and exposing the retroreflective sheeting of the backlight module and at least a portion of the light guide plate.
The mobile terminal of claim 2, wherein each display screen is internally provided with a first connecting member and a reset post, the first end of the first connecting member being fixed on the inner wall of the outer casing, and the second end is The light shielding plate is connected, the reset column passes through a through hole provided in the light shielding plate, and one end of the light shielding plate protrudes from the outer casing, when the display surfaces of the two display screens are in the same plane by flipping, A reset post on one of the two display screens is retracted into the housing by the pressure of the first side of the other of the two display screens, the first connecting member driving the shutter to move Open the communication window.
The mobile terminal of claim 3, wherein one end of the first connector is fixed at the On the top wall of the outer casing, the light shielding plate is translated in the direction of the top wall by the first connecting member.
The mobile terminal of claim 3, wherein each display screen is further provided with a second connecting member, the first end of the second connecting member is fixedly disposed on the outer casing, and the second connecting member The second end is connected to the reset column. When the back sides of the two display screens are oppositely disposed, the reset post is pushed by the second connecting member, and the reset post is not connected to the second connecting member. One end of the through hole passes through the through hole, and a part of the reset post protrudes from the outer casing, and the reset post cooperates with the through hole to drive the light shielding plate to move to block the communication window.
The mobile terminal of claim 5, wherein the reset post protrudes from one end of the outer casing to provide an inclined cut surface.
The mobile terminal of claim 1, wherein the backlight modules of the two display screens use the same reflector.
The mobile terminal of claim 7, wherein each display screen is further provided with a receiving device, and two ends of the reflective sheet perpendicular to the connecting window are respectively connected to the receiving device, when two When the display surface of the display screen is in the same plane by flipping, the reflective sheet is respectively received in the receiving device at two ends in a direction perpendicular to the connecting window, and the reflective sheet is tiled on the common backlight module. The bottom of the group.
A backlight control method is applied to the mobile terminal of claim 1-8, wherein a backlight of each display screen of the mobile terminal comprises a first light source group and a second light source group, the second The light source group is located on the side close to the rotational connection of the two display screens.

The method includes:

Detecting whether the mobile terminal is in a large screen state, wherein the large screen state is the mobile terminal The two displays on the end are in the same plane by flipping;

If the mobile terminal is in a large screen state, the second light source group that controls one of the two display screens does not work;

If the mobile terminal is not in a large screen state, the first light source group and the second light source group in the display screen that are required to be displayed are controlled to work simultaneously.
A computer readable storage medium storing computer executable instructions arranged to perform the method of claim 9.