WO2017133052A1 - 一种移动终端 - Google Patents

一种移动终端 Download PDF

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Publication number
WO2017133052A1
WO2017133052A1 PCT/CN2016/075571 CN2016075571W WO2017133052A1 WO 2017133052 A1 WO2017133052 A1 WO 2017133052A1 CN 2016075571 W CN2016075571 W CN 2016075571W WO 2017133052 A1 WO2017133052 A1 WO 2017133052A1
Authority
WO
WIPO (PCT)
Prior art keywords
display screen
display
mobile terminal
liquid crystal
screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/075571
Other languages
English (en)
French (fr)
Inventor
崔宏青
钟新辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US15/023,755 priority Critical patent/US20180011513A1/en
Publication of WO2017133052A1 publication Critical patent/WO2017133052A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133553—Reflecting elements
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1647—Details related to the display arrangement, including those related to the mounting of the display in the housing including at least an additional display
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133553—Reflecting elements
    • G02F1/133555—Transflectors
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133342—Constructional arrangements; Manufacturing methods for double-sided displays
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/04—Display device controller operating with a plurality of display units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/16—Details of telephonic subscriber devices including more than one display unit

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a mobile terminal.
  • the power consumption of mobile terminals is also increasing, often facing the problem that the mobile terminal has no power or the charging interval is too short.
  • the display screen of the mobile terminal tends to develop in high performance such as high resolution, high contrast, and high color gamut, resulting in an increasingly high proportion of power consumption of the display screen.
  • the technical problem to be solved by the present invention is to provide a mobile terminal, which can reduce the power consumption of the mobile terminal to a certain extent and improve the endurance capability of the mobile terminal.
  • a technical solution adopted by the present invention is to provide a mobile terminal, including a first display screen and a second display screen; the first display screen has a first display surface, and the second display screen Having a second display surface, the first display surface and the second display surface are opposite in direction, the first display screen is a transmissive liquid crystal display, and the second display screen is a reflective liquid crystal display, and The other one of the first display screen and the second display screen is in a closed state; wherein the mobile terminal detects that the power is lower than the first threshold, or detects that the current ambient brightness exceeds the second threshold Or, when detecting that the user starts the startup instruction of the preset application, the mobile terminal selects the second display screen to perform screen display.
  • the reflective liquid crystal display is a reflective white liquid crystal display in a normally white mode.
  • the reflective liquid crystal display comprises: a first substrate having a reflective layer; a second substrate; a liquid crystal layer between the first substrate and the second substrate; and a polarizer disposed on the second substrate.
  • the reflective liquid crystal display further comprises a quarter wave plate, and the quarter wave plate is located on the back side of the polarizer in the light emitting direction.
  • the reflective liquid crystal display further comprises a half wave plate, wherein the half wave plate is located between the quarter wave plate and the polarizer.
  • the reflective liquid crystal display comprises a light source, and the light source is disposed at a side of the reflective liquid crystal display.
  • the reflective surface of the reflective layer is an uneven surface.
  • a mobile terminal including a first display screen and a second display screen; the first display screen has a first display surface, and the second display The screen has a second display surface, the first display surface and the second display surface are opposite in direction, and at least one of the first display screen and the second display screen is a reflective liquid crystal display screen, and When one of the first display screen and the second display screen is displayed, the other is in a closed state.
  • the method further includes a control switch for selecting the first display screen or the second display screen for screen display.
  • the control switch is specifically configured to select the second display screen for screen display in one of the following situations, and keep the first display screen in a closed state: the mobile terminal is lower than a first threshold; The mobile terminal is located in an environment where the brightness exceeds a second threshold; the mobile terminal runs during a preset application.
  • the first display screen is a transmissive liquid crystal display
  • the second display screen is a reflective liquid crystal display.
  • the reflective liquid crystal display is a reflective white liquid crystal display in a normally white mode.
  • the reflective liquid crystal display comprises: a first substrate having a reflective layer; a second substrate; a liquid crystal layer between the first substrate and the second substrate; and a polarizer disposed on the second substrate.
  • the reflective liquid crystal display further comprises a quarter wave plate, and the quarter wave plate is located on the back side of the polarizer in the light emitting direction.
  • the reflective liquid crystal display further comprises a half wave plate, wherein the half wave plate is located between the quarter wave plate and the polarizer.
  • the reflective liquid crystal display comprises a light source, and the light source is disposed at a side of the reflective liquid crystal display.
  • the reflective surface of the reflective layer is an uneven surface.
  • the mobile terminal of the present invention comprises a first display screen and a second display screen.
  • the display surfaces of the two display screens are opposite in direction, and at least one of the display screens is reflective.
  • the liquid crystal display, and the other display is off when one of the displays is displayed. Since the reflective LCD can illuminate the screen by ambient light to realize the display, when the mobile terminal is low or only needs to be When viewing content such as text (for example, when reading an e-book), the user can choose to use a reflective liquid crystal display to view the screen, thereby reducing backlight power consumption, reducing power consumption of the mobile terminal, and extending battery life.
  • FIG. 1 is a front elevational view of a mobile terminal in an embodiment of a mobile terminal according to the present invention
  • FIG. 2 is a schematic rear view of a mobile terminal in an embodiment of a mobile terminal according to the present invention.
  • Figure 3 is a cross-sectional view of the mobile terminal shown in Figure 1 along the AB direction;
  • FIG. 4 is a schematic structural diagram of a second display screen in an embodiment of a mobile terminal according to the present invention.
  • FIG. 5 is a schematic view showing the direction of the transmission axis of the polarizer, the direction of the fast axis of the quarter-wave plate and the half-wave plate, and the alignment direction of the liquid crystal layer in the second display screen shown in FIG. 4;
  • FIG. 6 is a schematic structural diagram of a second display screen in another embodiment of the mobile terminal of the present invention.
  • the mobile terminal 10 includes a housing 11, a first display screen 12, and a second display screen 13.
  • the first display screen 12 and the second display screen 13 are fixed in the housing 11.
  • the first display screen 12 has a first display surface 121
  • the second display screen 13 has a second display surface 131.
  • the first display surface 121 and the second display surface 131 are opposite in direction.
  • the first display surface 121 may be located on the front side of the mobile terminal 10
  • the second display surface 131 may be located on the back side of the mobile terminal 10, and the front and back sides of the mobile terminal 10 are opposed to each other.
  • At least one of the first display screen 12 and the second display screen 13 is a reflective liquid crystal display, and the other one of the first display screen 12 and the second display screen 13 is displayed when the screen is displayed. .
  • the user can Select the reflective LCD to view the picture. Since the reflective liquid crystal display can rely on ambient light to illuminate the screen to realize the screen display, the backlight is not required, so that the backlight power consumption can be reduced when viewing the content using the reflective liquid crystal display, which is advantageous for reducing the power consumption of the mobile terminal and prolonging. Life time.
  • the first display screen 12 is a transmissive liquid crystal display
  • the second display screen 13 is a reflective liquid crystal display.
  • the transmissive LCD screen backlights the screen.
  • the mobile terminal also includes a control switch 14.
  • the control switch 14 is a physical switch disposed on the outer side of the housing 11 for selecting the first display screen 12 or the second display screen 13 for screen display, and selecting one of the display screens for screen display The other display is off. Therefore, the user can cause the mobile terminal 10 to display a screen using the first display screen 12 or display the screen using the second display screen 13 as needed.
  • the transmissive liquid crystal display has the advantages of higher resolution, high contrast, high color gamut, etc., and can provide a vivid and bright picture for the user, so in the case of watching video, image, etc., the user can select the mobile terminal 10 by controlling the switch 14.
  • the first display screen 12 is displayed on the screen for a better viewing experience.
  • the reflective liquid crystal display does not need a backlight, and can rely on ambient light to illuminate the screen to realize the screen display. Therefore, when the ambient light is bright or the power of the mobile terminal 10 is low or the user only needs to watch the text content, the user can control the switch. 14 causes the mobile terminal 10 to select the second display screen 13 for screen display, so that the power of the mobile terminal 10 can be saved, which is advantageous for delaying the battery life.
  • the mobile terminal 10 can arbitrarily select one of the display screens, or display the screen using the display screen of the display screen before the mobile terminal 10 was last turned off. Then, when it is detected that the user presses the control switch 14, it is determined whether the display screen of the current display screen is the first display screen 12 or the second display screen 13.
  • the operation of the lower control switch 14 switches the display screen of the current display screen to the second display screen 13 and turns off the first display screen 12; if the display screen of the current display screen is the second display screen 13, the user presses The operation of the switch 14 is controlled to switch the display screen of the current display screen to the first display screen 12 and to close the second display screen 13. This enables switching between the two displays.
  • the control switch 14 is specifically configured to select the second display screen 13 for screen display in one of the following situations, and keep the first display screen in a closed state:
  • Case 1 When the power of the mobile terminal 10 is lower than the first threshold.
  • the first threshold may be 10%, 15% or 20% of the power. That is, when the amount of power of the mobile terminal 10 is lower than the first threshold, the user can press the control switch 14 to cause the mobile terminal 10 to select the second display screen 13 for screen display.
  • Case 2 The mobile terminal 10 is located in an environment where the brightness exceeds a second threshold. That is, when the current ambient brightness is high, the user can press the control switch 14 to cause the mobile terminal 10 to select the second display screen 13 for screen display.
  • the mobile terminal 10 monitors the ambient brightness. When the ambient brightness exceeds the second threshold, the user may send a reminder message that “the current ambient brightness is brighter”, and the user may determine whether the display screen needs to be switched according to the reminder information.
  • Case 3 The mobile terminal 10 runs a preset application process.
  • the preset application may be, for example, an e-book, a WeChat, a QQ, or the like.
  • the user can press the control switch 14 to cause the mobile terminal 10 to select the second display screen 13 for screen display.
  • control switch can also be a software switch, such as a touch button that can be displayed on the screen.
  • the control switch can be displayed in the main menu.
  • the control switch can be found from the main menu, and then the control switch is touched to switch the display of the current display screen. Screen. More specifically, if the display screen of the current display screen is the first display screen 12, when detecting that the user touches the control switch displayed in the current display screen, the display screen of the current display screen is switched to the second display screen 13; The display screen of the current display screen is the second display screen 13.
  • the display screen of the current display screen is switched to the first display screen 12.
  • the first display screen 12 and the second display screen 13 can also be automatically switched.
  • the mobile terminal 10 detects that the power is lower than the first threshold, or detects that the current ambient brightness exceeds the second threshold, or detects that the user starts the startup application of the preset application, if the display screen of the current display screen is the first The display screen 12, the mobile terminal 10 selects the second display screen 13 for screen display, that is, the display screen of the current display screen is switched from the first display screen 12 to the second display screen; if the display screen of the current display screen is the second display screen 13, then continue to use the second display 13 for screen display.
  • the display screen of the current display screen is not switched at this time, or the current display is displayed.
  • the display screen of the screen is switched to the first display screen 12.
  • the second display screen 13 is a reflective white liquid crystal display in a normally white mode, that is, in the case where the liquid crystal driving voltage is not applied, the second display screen 13 is in a state of high reflectivity and is transparent. In the case of passing light, the second display screen 13 cannot transmit light when the liquid crystal driving voltage is applied. Therefore, the second display panel 13 of the present embodiment has the effect of a mirror when the voltage is not applied, and can be used as a mirror.
  • the second display screen 13 includes:
  • liquid crystal layer 44 between the first substrate 42 and the second substrate 43;
  • the polarizer 45 is disposed on the second substrate 44.
  • the polarizer 45 is on the side close to the second display surface 131.
  • the first substrate 42 is an array substrate for forming a pixel array
  • the second substrate 43 is a color filter substrate.
  • the ambient light is incident from the polarizer 45, becomes polarized light after passing through the polarizer 45, and then passes through the second substrate 43, the liquid crystal layer 44, and the first substrate 42 to reach the reflective layer 41, and is reflected by the reflective layer 41 and then polarized.
  • the sheet 45 is shot.
  • the reflective surface of the reflective layer 41 is a concave-convex surface so that diffused reflection is formed when light is incident on the reflective surface of the reflective layer 41.
  • the second display screen 13 further includes a quarter wave plate 46 and a half wave plate 47.
  • the quarter wave plate 46 is located on the back surface of the polarizer 45 in the light outgoing direction.
  • the light exiting direction is a direction from the reflective layer 41 to the polarizer 45.
  • the half wave plate 47 is located between the quarter wave plate 46 and the polarizer 45.
  • the transmission axis direction 451 of the polarizer 45 is parallel to the x-axis direction, that is, at an angle of 0° with respect to the x-axis, four points.
  • the fast axis direction 461 of one of the wave plates 46 is 80° from the x-axis direction
  • the fast axis direction 471 of the half wave plate 47 is 17.5° from the x-axis
  • the alignment of the liquid crystal 441 close to the side of the first substrate 42 is obtained.
  • the direction is 140° from the x-axis
  • the alignment direction of the liquid crystal 442 on the side close to the second substrate 43 is 50° from the x-axis.
  • the direction of the transmission axis of the polarizer 45, the quarter-wave plate 46, and the direction of the fast axis of the half-wave plate 47 can be adjusted.
  • the direction of the transmission axis of the polarizer 45 can be It is 90° off the x-axis and so on.
  • the alignment structure of the liquid crystal layer 44 may be TN (Twisted) Nematic, twisted nematic) structure, or VA (Vertical Alignment) type structure, or IPS (In-Plane) Switching, transverse electric field effect) type structure, or other type of orientation.
  • the second display screen 13 may also be a normally white mode reflective liquid crystal display of other structures, which is not limited thereto.
  • the second display screen 13 may also be a reflective liquid crystal display of a normally black mode.
  • the first display screen 12 and the second display screen 13 may both be reflective liquid crystal displays.
  • the second display screen 13 further includes a light source 48.
  • the light source 48 is a front light source disposed on a side of the second display screen 13, such as As shown in FIG. 6, the light source 48 is disposed on a side close to the polarizer 45.
  • Light source 48 is used to assist ambient light for screen display. When the ambient light is insufficient, the light source 48 can be turned on so that a clearer picture can be viewed. Among them, a mechanical switch can be provided to control the opening and closing of the light source 48, and the light source 48 can be automatically turned on or off according to the intensity of the ambient light. For example, when it is detected that the intensity of the ambient light is lower than the threshold, and the display screen of the current display screen is the second display screen 13, the automatic control light source 48 is turned on, so that the user can view a clearer picture when the ambient light is detected. When the display screen of the current display screen is the second display screen 13 and is greater than or equal to the threshold value, the light source 48 is turned off to save power.
  • the power of the light source 48 is less than the power of the backlight source as the first display screen 12 of the transmissive liquid crystal display.
  • the second display screen 13 further includes a light guide plate 49, and the light guide plate 49 is disposed on the polarizer 45 for conducting the light emitted from the light source 45 to the polarizer 45, and then incident from the polarizer 45. .

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Abstract

本发明公开了一种移动终端，包括第一显示屏和第二显示屏；所述第一显示屏具有第一显示面，所述第二显示屏具有第二显示面，所述第一显示面和所述第二显示面方向相反，所述第一显示屏和所述第二显示屏中的至少一个为反射式液晶显示屏，且在其中一个显示屏进行画面显示时另一个显示屏处于关闭状态。通过上述方式，本发明能够在一定程度上降低移动终端的耗电量，提高移动终端的续航能力。

Description

一种移动终端
【技术领域】
本发明涉及显示技术领域，特别是涉及一种移动终端。
【背景技术】
随着电子技术和互联网技术的不断发展，智能移动终端（例如手机、平板电脑等）的功能越来越强大，为人们的沟通交流、游戏阅读、影音娱乐、购物等方面带来了极大的便利，已成为人们生活中不可或缺的一部分。
然而，随着用户使用移动终端的频率越来越高以及使用时间越来越长，导致移动终端的耗电量也越来越大，常常要面临移动终端没电或充电时间间隔太短的问题。此外，由于对显示画质要求的不断提高，移动终端的显示屏趋向于高分辨率、高对比度、高色域等高性能方向发展，造成显示屏占整机的耗电比例越来越高。
因此如何延长移动终端续航时间成为亟需解决的问题。
【发明内容】
本发明主要解决的技术问题是提供一种移动终端，能够在一定程度上降低移动终端的耗电量，提高移动终端的续航能力。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种移动终端，包括第一显示屏和第二显示屏；所述第一显示屏具有第一显示面，所述第二显示屏具有第二显示面，所述第一显示面和所述第二显示面方向相反，所述第一显示屏为透射式液晶显示屏，所述第二显示屏为反射式液晶显示屏，且在所述第一显示屏和所述第二显示屏的其中一个显示画面时另一个处于关闭状态；其中，所述移动终端检测到电量低于第一阈值，或者检测到当前环境亮度超过第二阈值，或者检测到用户开启预设应用程序的启动指令时，所述移动终端选择所述第二显示屏进行画面显示。
其中，所述反射式液晶显示屏为常白模式的反射式液晶显示屏。
其中，所述反射式液晶显示屏包括：具有反射层的第一基板；第二基板；位于第一基板和第二基板之间的液晶层；偏光片，设置在所述第二基板上。
其中，所述反射式液晶显示屏还包括四分之一波片，所述四分之一波片在出光方向上位于所述偏光片的背面。
其中，所述反射式液晶显示屏还包括二分之一波片，所述二分之一波片位于所述四分之一波片和所述偏光片之间。
其中，所述反射式液晶显示屏包括光源，所述光源设置在所述反射式液晶显示屏的侧边。
其中，所述反射层的反射表面为凹凸表面。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种移动终端，包括第一显示屏和第二显示屏；所述第一显示屏具有第一显示面，所述第二显示屏具有第二显示面，所述第一显示面和所述第二显示面方向相反，所述第一显示屏和所述第二显示屏中的至少一个为反射式液晶显示屏，且在所述第一显示屏和所述第二显示屏的其中一个显示画面时另一个处于关闭状态。
其中，还包括控制开关，用以选择所述第一显示屏或所述第二显示屏进行画面显示。
其中，所述控制开关具体用于在下述情况之一时选择所述第二显示屏进行画面显示，并保持所述第一显示屏处于关闭状态：所述移动终端电量低于第一阈值；所述移动终端位于亮度超过第二阈值的环境中；所述移动终端运行预设应用过程中。
其中，所述第一显示屏为透射式液晶显示屏，所述第二显示屏为反射式液晶显示屏。
其中，所述反射式液晶显示屏为常白模式的反射式液晶显示屏。
其中，所述反射式液晶显示屏包括：具有反射层的第一基板；第二基板；位于第一基板和第二基板之间的液晶层；偏光片，设置在所述第二基板上。
其中，所述反射式液晶显示屏还包括四分之一波片，所述四分之一波片在出光方向上位于所述偏光片的背面。
其中，所述反射式液晶显示屏还包括二分之一波片，所述二分之一波片位于所述四分之一波片和所述偏光片之间。
其中，所述反射式液晶显示屏包括光源，所述光源设置在所述反射式液晶显示屏的侧边。
其中，所述反射层的反射表面为凹凸表面。
本发明的有益效果是：区别于现有技术的情况，本发明的的移动终端包括第一显示屏和第二显示屏，两个显示屏的显示面方向相反，其中至少一个显示屏为反射式液晶显示屏，且在其中一个显示屏进行画面显示时另一个显示屏处于关闭状态，由于反射式液晶显示屏可以依靠环境光线照亮屏幕进而实现画面显示，因此当移动终端电量较低或仅需要观看文字（例如阅读电子书时）等内容信息的时候，用户可以选择使用反射式液晶显示屏观看画面，由此可以减少背光耗电，有利于降低移动终端耗电量，延长续航时间。
【附图说明】
图1是本发明移动终端一实施方式中，移动终端的正面示意图；
图2是本发明移动终端一实施方式中，移动终端的背面示意图；
图3是图1所示的移动终端沿AB方向的截面示意图；
图4是本发明移动终端一实施方式中，第二显示屏的结构示意图；
图5是图4所示的第二显示屏中，偏光片的穿透轴方向、四分之一波片和二分之一波片的快轴方向、液晶层的配向方向示意图；
图6是本发明移动终端另一实施方式中，第二显示屏的结构示意图。
【具体实施方式】
下面将结合附图和实施方式对本发明进行详细说明。
参阅图1至图3，本发明移动终端一实施方式中，移动终端10包括壳体11、第一显示屏12和第二显示屏13。
其中，第一显示屏12和第二显示屏13固定于壳体11内。第一显示屏12具有第一显示面121，第二显示屏13具有第二显示面131，第一显示面121和第二显示面131方向相反。第一显示面121可以位于移动终端10的正面，第二显示面131可以位于移动终端10的背面，移动终端10的正面和背面相对。
其中，第一显示屏12和第二显示屏13中至少有一个为反射式液晶显示屏，且在第一显示屏12和第二显示屏13的其中一个屏进行画面显示时另一个处于关闭状态。
本实施方式中，通过设置两个显示屏12、13，其中一个为反射式液晶显示屏，因此当移动终端的电量较低或者仅需要观看文字（例如阅读电子书）等内容信息时，用户可以选择反射式液晶显示屏观看画面。由于反射式液晶显示屏可以依靠环境光线照亮屏幕进而实现画面显示，因此不需要背光，从而在使用反射式液晶显示屏观看内容时可以减少背光耗电，有利于降低移动终端耗电量，延长续航时间。
继续参阅图1和图2，在本发明一实施方式中，第一显示屏12为透射式液晶显示屏，第二显示屏13为反射式液晶显示屏。透射式液晶显示屏采用背光照亮屏幕。移动终端还包括控制开关14。
本实施方式中，控制开关14为物理开关，设置在壳体11的外侧边，用于选择第一显示屏12或第二显示屏13进行画面显示，且在选择其中一个显示屏进行画面显示时，另一显示屏处于关闭状态。因此，用户可以根据需要使移动终端10使用第一显示屏12显示画面或者使用第二显示屏13显示画面。例如，透射式液晶显示屏具有更高分辨率、高对比度、高色域等优点，能够提供用户鲜艳明亮的画面，因此在观看视频、图像等情况，用户可以通过控制开关14使移动终端10选择第一显示屏12进行画面显示，以获得更好的观看体验。而反射式液晶显示屏不需要背光，可以依靠环境光线照亮屏幕进而实现画面显示，因此当环境光线较明亮或者移动终端10的电量较低或者用户仅需要观看文字内容等，用户可以通过控制开关14使移动终端10选择第二显示屏13进行画面显示，从而可以节省移动终端10的电量，有利于延迟续航时间。
其中，在移动终端10开机（例如按下电源键）后，移动终端10可以任意选择其中一个显示屏显示画面，或者采用移动终端10上次关机之前显示画面的显示屏进行画面显示。之后，当检测到用户按下控制开关14，判断当前显示画面的显示屏为第一显示屏12还是第二显示屏13，若当前显示画面的显示屏为第一显示屏12，则根据用户按下控制开关14的操作，将当前显示画面的显示屏切换为第二显示屏13，并将第一显示屏12关闭；若当前显示画面的显示屏为第二显示屏13，则根据用户按下控制开关14的操作，将当前显示画面的显示屏切换第一显示屏12，并将第二显示屏13关闭。由此实现两个显示屏的切换。
其中，控制开关14具体用于在下述情况之一时，选择第二显示屏13进行画面显示，并保持第一显示屏处于关闭状态：
情况一：移动终端10的电量低于第一阈值时。其中，第一阈值可以是电量的10%、15%或20%等。即当移动终端10的电量低于第一阈值时，用户可以按下控制开关14，以使得移动终端10选择第二显示屏13进行画面显示。
情况二：移动终端10位于亮度超过第二阈值的环境中。即当当前环境亮度较高时，用户可以按下控制开关14以使得移动终端10选择第二显示屏13进行画面显示。其中，移动终端10监测环境亮度，当环境亮度超过第二阈值时，可以向用户发出“当前环境亮度较亮”的提醒信息，用户可以根据该提醒信息决定是否需要切换显示屏。
情况三：移动终端10运行预设应用过程中。预设应用例如可以是电子书、微信、QQ等。当移动终端10运行预设应用时，用户可以按下控制开关14，以使得移动终端10选择第二显示屏13进行画面显示。
当然，在另一种实施方式中，控制开关也可以是软件开关，如可以是显示在屏幕上的触摸按键。例如，可以将控制开关显示在主菜单中，当用户需要切换第一显示屏12和第二显示屏13，可以从主菜单中找到该控制开关，然后触摸该控制开关以切换当前显示画面的显示屏。更具体地，若当前显示画面的显示屏为第一显示屏12，则在检测到用户触摸当前显示画面中显示的控制开关时，将当前显示画面的显示屏切换为第二显示屏13；若当前显示画面的显示屏为第二显示屏13，则在检测到用户触摸当前显示画面中显示的控制开关时，将当前显示画面的显示屏切换第一显示屏12。
此外，在另一种实施方式中，也可以自动切换第一显示屏12和第二显示屏13。例如，当移动终端10检测到电量低于第一阈值，或者检测到当前环境亮度超过第二阈值、或者检测到用户开启预设应用程序的启动指令时，若当前显示画面的显示屏为第一显示屏12，则移动终端10选择第二显示屏13进行画面显示，即将当前显示画面的显示屏从第一显示屏12切换为第二显示屏；若当前显示画面的显示屏为第二显示屏13，则继续使用第二显示屏13进行画面显示。当移动终端10的电量不低于第一阈值、且当前环境亮度不超过第二阈值以及未检测移动终端10正在运行预设应用程序，此时不切换当前显示画面的显示屏，或者将当前显示画面的显示屏切换为第一显示屏12。
在本发明又一种实施方式中，第二显示屏13为常白模式的反射式液晶显示屏，即在未施加液晶驱动电压的情况下，第二显示屏13为高反射率状态，能够透过光线，在施加液晶驱动电压的情况下，第二显示屏13不能透过光线。因此，本实施方式的第二显示屏13，在未施加电压时其第二显示面131具有反光镜的效果，可以当镜子使用。
参阅图4，本实施方式中，第二显示屏13包括：
具有反射层41的第一基板42；
第二基板43；
位于第一基板42和第二基板43之间的液晶层44；
偏光片45，设置在第二基板44上。
其中，偏光片45在靠近第二显示面131的一侧。第一基板42为用于形成像素阵列的阵列基板，第二基板43为彩色滤光基板。环境光线自偏光片45射入，经过偏光片45后变为偏振光，然后依次经过第二基板43、液晶层44、第一基板42后到达反射层41，经过反射层41反射后又从偏光片45射出。
其中，为了使画面亮度更均匀，反射层41的反射表面为凹凸表面，以使得光线入射至反射层41的反射表面上时形成漫反射。
进一步地，第二显示屏13还包括四分之一波片46和二分之一波片47。四分之一波片46在出光方向上位于偏光片45的背面。其中，所述出光方向为从反射层41到偏光片45的方向。二分之一波片47位于四分之一波片46和偏光片45之间。
其中，如图5所示，本实施方式中，以图5所示的视图为基础，偏光片45的穿透轴方向451与x轴方向平行，即与x轴为0°夹角，四分之一波片46的快轴方向461为偏离x轴方向80°，二分之一波片47的快轴方向471为偏离x轴17.5°，而靠近第一基板42一侧的液晶441的配向方向为偏离x轴140°，靠近第二基板43一侧的液晶442的配向方向为偏离x轴50°。
当然，在其他实施方式中，偏光片45的穿透轴方向、四分之一波片46和二分之一波片47的快轴方向可以进行调整，例如偏光片45的穿透轴方向可以是偏离x轴90°等。此外，液晶层44的取向结构可以是TN（Twisted Nematic，扭曲向列）型结构，或者VA（Vertical Alignment ，垂直取向）型结构，或者IPS（In-Plane Switching，横向电场效应）型结构，或者其他类型的取向。
当然，在其他实施方式中，第二显示屏13也可以是其他结构的常白模式反射式液晶显示屏，对此不做限定。并且，第二显示屏13也可以是常黑模式的反射式液晶显示屏。且第一显示屏12和第二显示屏13可以都是反射式液晶显示屏。
参阅图6，在本发明又一实施方式中，作为反射式液晶显示屏，第二显示屏13进一步还包括光源48，光源48为前置光源，设置在第二显示屏13的侧边，如图6所示，光源48设置在靠近偏光片45的一侧边。
光源48用于辅助环境光线以进行画面显示。当环境光线不足时，可以打开光源48，从而可以观看到更清晰的画面。其中，可以设置机械开关来控制光源48的打开和关闭，也可以根据环境光线的强弱自动打开或关闭光源48。例如，当检测到环境光线的强度低于阈值，且当前显示画面的显示屏为第二显示屏13时，则自动控制光源48打开，以使得用户可以观看到更清晰画面，当检测到环境光线大于或等于阈值，且当前显示画面的显示屏为第二显示屏13时，则关闭光源48，以节省电量。
其中，在一种实施方式中，光源48的功率小于作为透射式液晶显示屏的第一显示屏12的背光光源功率。
此外，为了使画面亮度更均匀，第二显示屏13还包括导光板49，导光板49设置在偏光片45上，用于将光源45发出的光线传导至偏光片45，进而从偏光片45入射。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (17)

  1. 一种移动终端，其中，包括第一显示屏和第二显示屏；
    所述第一显示屏具有第一显示面，所述第二显示屏具有第二显示面，所述第一显示面和所述第二显示面方向相反，所述第一显示屏为透射式液晶显示屏，所述第二显示屏为反射式液晶显示屏，且在所述第一显示屏和所述第二显示屏的其中一个显示画面时另一个处于关闭状态；
    其中，所述移动终端检测到电量低于第一阈值，或者检测到当前环境亮度超过第二阈值，或者检测到用户开启预设应用程序的启动指令时，所述移动终端选择所述第二显示屏进行画面显示。
  2. 根据权利要求1所述的移动终端，其中，所述反射式液晶显示屏为常白模式的反射式液晶显示屏。
  3. 根据权利要求2所述的移动终端，其中，所述反射式液晶显示屏包括：
    具有反射层的第一基板；
    第二基板；
    位于第一基板和第二基板之间的液晶层；
    偏光片，设置在所述第二基板上。
  4. 根据权利要求3所述的移动终端，其中，所述反射式液晶显示屏还包括四分之一波片，所述四分之一波片在出光方向上位于所述偏光片的背面。
  5. 根据权利要求4所述的移动终端，其中，所述反射式液晶显示屏还包括二分之一波片，所述二分之一波片位于所述四分之一波片和所述偏光片之间。
  6. 根据权利要求3所述的移动终端，其中，所述反射式液晶显示屏包括光源，所述光源设置在所述反射式液晶显示屏的侧边。
  7. 根据权利要求3所述的移动终端，其中，所述反射层的反射表面为凹凸表面。
  8. 一种移动终端，其中，包括第一显示屏和第二显示屏；
    所述第一显示屏具有第一显示面，所述第二显示屏具有第二显示面，所述第一显示面和所述第二显示面方向相反，所述第一显示屏和所述第二显示屏中的至少一个为反射式液晶显示屏，且在所述第一显示屏和所述第二显示屏的其中一个显示画面时另一个处于关闭状态。
  9. 根据权利要求8所述的移动终端，其中，还包括控制开关，用以选择所述第一显示屏或所述第二显示屏进行画面显示。
  10. 根据权利要求9所述的移动终端，其中，所述控制开关具体用于在下述情况之一时选择所述第二显示屏进行画面显示，并保持所述第一显示屏处于关闭状态：
    所述移动终端电量低于第一阈值；
    所述移动终端位于亮度超过第二阈值的环境中；
    所述移动终端运行预设应用过程中。
  11. 根据权利要求8所述的移动终端，其中，所述第一显示屏为透射式液晶显示屏，所述第二显示屏为反射式液晶显示屏。
  12. 根据权利要求11所述的移动终端，其中，所述反射式液晶显示屏为常白模式的反射式液晶显示屏。
  13. 根据权利要求12所述的移动终端，其中，所述反射式液晶显示屏包括：
    具有反射层的第一基板；
    第二基板；
    位于第一基板和第二基板之间的液晶层；
    偏光片，设置在所述第二基板上。
  14. 根据权利要求13所述的移动终端，其中，所述反射式液晶显示屏还包括四分之一波片，所述四分之一波片在出光方向上位于所述偏光片的背面。
  15. 根据权利要求14所述的移动终端，其中，所述反射式液晶显示屏还包括二分之一波片，所述二分之一波片位于所述四分之一波片和所述偏光片之间。
  16. 根据权利要求13所述的移动终端，其中，所述反射式液晶显示屏包括光源，所述光源设置在所述反射式液晶显示屏的侧边。
  17. 根据权利要求13所述的移动终端，其中，所述反射层的反射表面为凹凸表面。
PCT/CN2016/075571 2016-02-02 2016-03-04 一种移动终端 Ceased WO2017133052A1 (zh)

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