CN104008730A - Display apparatus and electronic device - Google Patents
Display apparatus and electronic device Download PDFInfo
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- CN104008730A CN104008730A CN201310060627.1A CN201310060627A CN104008730A CN 104008730 A CN104008730 A CN 104008730A CN 201310060627 A CN201310060627 A CN 201310060627A CN 104008730 A CN104008730 A CN 104008730A
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- phase delay
- display screen
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- transflective
- controlled phase
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Abstract
The invention discloses a display apparatus and an electronic device which are capable of ensuring the contrast of a transmission reflection switchable display screen under the condition of an environment light irritation scene. The display apparatus is applied to an electronic device and comprises the transmission reflection switchable display screen, an electric control phase delay sheet, a polaroid and a control module, wherein the transmission reflection switchable display screen is used for performing displaying respectively by use of a transmission mode or a reflection mode; the electric control phase delay sheet is disposed on the transmission reflection switchable display screen, and the power supply terminal of the electric control phase delay sheet is arranged to be connected with a power source; the polaroid is disposed on the electric control phase delay sheet; and the control module is respectively connected with the transmission reflection switchable display screen and the electric control phase delay sheet, controls the input voltage of the electric control phase delay sheet to be first voltage when the transmission reflection switchable display screen works in the transmission mode, and controls the input voltage of the electric control phase delay sheet to be second voltage when the transmission reflection switchable display screen works in the reflection mode.
Description
Technical field
The present invention relates to image processing field, relate in particular to a kind of display device and electronic equipment.
Background technology
At present, because of the interference of external environment light, most of transmissive display screens all can reflect ambient light, and the contrast of screen is reduced greatly, so, and the non-constant of the anti-ambient light interference characteristic of screen.As shown in Figure 1, when there being the external environment light time, external environment reflection of light can reduce the contrast of display screen, thereby causes poor user experience.For example, out of doors under scene, the contrast of the screen 60%-80% that can decline.
Existing solution has, for OLED(Organic Light-Emitting Diode, Organic Light Emitting Diode) screen, generally can on OLED, add a quarter wave plate and a polaroid, be used for suppressing environment reflection of light, improve contrast.As shown in Figure 2.
The present inventor finds that in implementation procedure prior art at least exists following technological deficiency:
For the changeable display screen of Transflective, it has two kinds of mode of operations, also there is no effectively to suppress at present the way of ambient light interference.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of display device and electronic equipment, can ensure the contrast of the changeable display screen of Transflective under surround lighting irradiation scene.
In order to solve the problems of the technologies described above, the invention provides a kind of display device, be applied to electronic equipment, it is characterized in that, described display device comprises the changeable display screen of Transflective, automatically controlled phase delay chip, polaroid and control module, wherein:
The changeable display screen of described Transflective, for adopting respectively transmission mode or reflective-mode to show;
Described automatically controlled phase delay chip, is positioned on the changeable display screen of Transflective, and the power supply terminal of described automatically controlled phase delay chip is set to be connected with power supply;
Described polaroid, is positioned on described automatically controlled phase delay chip;
Described control module, be connected with the changeable display screen of described Transflective, automatically controlled phase delay chip respectively, in the time that the changeable display screen of described Transflective works in transmission mode, the input voltage of controlling described automatically controlled phase delay chip is the first voltage, in the time that the changeable display screen of described Transflective works in reflective-mode, the input voltage of controlling described automatically controlled phase delay chip is second voltage.
Further, described automatically controlled phase delay chip, also in the time that its input voltage is the first voltage, work in 1/4 wavelength phase delay pattern, to the changeable display screen direction of described Transflective, line polarisation is converted into rotatory polarization, to described polaroid direction, rotatory polarization is converted into line polarisation.
Further, described automatically controlled phase delay chip, also in the time that its input voltage is second voltage, works in non-phase delay pattern.
Further, the changeable display screen of described Transflective comprises optical modulator module and backlight module, optical modulator module is positioned on backlight module, described backlight module comprises light emitting source and reflector plate, wherein: the changeable display screen of Transflective is in the time of transmission mode, light emitting source is opened, and reflector plate is for reflecting light that light emitting source sends to optical modulator module; The changeable display screen of Transflective is in the time of reflective-mode, and light emitting source is closed, and reflector plate is for reflecting the light entering from optical modulator module.
Further, described automatically controlled phase delay chip is made by producing electrooptical effect crystal.
In order to solve the problems of the technologies described above, the present invention also provides a kind of electronic equipment that comprises above-mentioned display device.
Be applied to the voltage above automatically controlled phase delay chip by control, and in conjunction with the mode of operation of the changeable display screen of Transflective, or environment reflection of light is suppressed or not actually control, thereby the contrast that ensures surround lighting and irradiate the changeable display screen of Transflective under scene.
Other features and advantages of the present invention will be set forth in the following description, and, partly from instructions, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in instructions, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and forms a part for instructions, is used from and explains technical scheme of the present invention with the application's embodiment mono-, does not form the restriction to technical solution of the present invention.
Fig. 1 is the schematic diagram that in prior art, extraneous reflection of ambient light affects screen;
Fig. 2 is the solution schematic diagram that in prior art, OLED screen suppresses ambient light interference;
Fig. 3 is the display device schematic diagram of the inhibition reflection of ambient light of the embodiment of the present invention 1;
Fig. 4 is the electronic equipment schematic diagram of the embodiment of the present invention 2;
Fig. 5 a is the fundamental diagram of automatically controlled phase delay chip in the time of pattern 1;
Fig. 5 b is the fundamental diagram of automatically controlled phase delay chip in the time of pattern 2;
Fig. 6 is the changeable display screen structural representation of Transflective;
The fundamental diagram of the changeable display screen of Fig. 7 a Transflective in transmission mode;
The fundamental diagram of the changeable display screen of Fig. 7 b Transflective in reflective-mode;
Fig. 8 is the fundamental diagram of the embodiment of the present invention 1 display device under transmission mode;
Fig. 9 is the fundamental diagram of the embodiment of the present invention 1 display device under reflective-mode.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.It should be noted that, in the situation that not conflicting, the combination in any mutually of the feature in embodiment and embodiment in the application.
Embodiment 1
The present embodiment is introduced a kind of display device, and this display device applications is in electronic equipment, and this display device as shown in Figure 3, comprises the changeable display screen 101 of Transflective, automatically controlled phase delay chip 102, polaroid 103 and control module 104, wherein:
The changeable display screen 101 of described Transflective, for adopting respectively transmission mode or reflective-mode to show;
Described automatically controlled phase delay chip 102, is positioned on the changeable display screen 101 of Transflective, and the power supply terminal of described automatically controlled phase delay chip 102 is set to be connected with power supply;
Described polaroid 103, is positioned on described automatically controlled phase delay chip 102;
Described control module 104, be connected with the changeable display screen 101 of described Transflective, automatically controlled phase delay chip 102 respectively, in the time that the changeable display screen 101 of described Transflective works in transmission mode, the input voltage of controlling described automatically controlled phase delay chip 102 is the first voltage, in the time that the changeable display screen 101 of described Transflective works in reflective-mode, the input voltage of controlling described automatically controlled phase delay chip 102 is second voltage.
The embodiment of the present invention is particularly useful for the changeable display screen of Transflective, as MEMS(MEMS (micro electro mechanical system), Micro-Electro-Mechanical Systems) display screen, and following novel display screen etc., but be also applicable to any transmissive display screen.
Above-mentioned automatically controlled phase delay chip is made by producing electrooptical effect crystal, and for example this automatically controlled phase delay chip can be liquid crystal material, can be also other some crystal that can produce electrooptical effect, such as ammonium di-hydrogen phosphate, potassium dihydrogen phosphate, niobic acid barium etc.
The effect of above-mentioned polaroid is to convert surround lighting to linearly polarized light; The Main Function of automatically controlled phase delay chip is in the time that the changeable display screen of Transflective works in transmission mode, changes the inclined to one side polarized state of light of line, reaches the object that suppresses reflection of ambient light; In the time that the changeable display screen of Transflective works in reflective-mode, do not affect any reflection of surround lighting.Particularly, this automatically controlled phase delay chip, in the time that its input voltage is the first voltage, works in 1/4 wavelength phase delay pattern, to the changeable display screen direction of described Transflective, line polarisation is converted into rotatory polarization, to described polaroid direction, rotatory polarization is converted into line polarisation.This automatically controlled phase delay chip, in the time that its input voltage is second voltage, works in non-phase delay pattern.
Embodiment 2
The present embodiment is introduced a kind of electronic equipment, and as shown in Figure 4, this electronic equipment comprises the display device described in above-described embodiment 1.
This electronic equipment is the mobile InterWorking Equipments such as smart mobile phone, panel computer or notebook computer.
Introduce the principle of work of automatically controlled phase delay chip below, this diaphragm has two mode of operations:
Pattern 1, in the time applying voltage V1 to automatically controlled phase delay chip, it works in 1/4 wavelength phase delay pattern, and automatically controlled phase delay chip can be realized the conversion of line polarisation and rotatory polarization, as shown in Figure 5 a;
Pattern 2, when giving automatically controlled phase delay chip while applying voltage V2, automatically controlled phase delay chip can maintain the inclined to one side polarized state of light of line, this retardation plate can be regarded as to a slice transparent membrane, on light without impact, as shown in Figure 5 b.
Introduce the principle of work of the changeable display screen of Transflective below, the changeable display screen of this Transflective comprises optical modulator module and backlight module, as shown in Figure 6, wherein this optical modulator module can be micro electromechanical structure or the liquid crystal module of venetian blind type, this backlight module comprises light emitting source and reflector plate, the light emitting source being somebody's turn to do is for example LED(light emitting diode), reflector plate is positioned at the bottom of backlight module.If this backlight module does not have light emitting source, can one light emitting source be set outward at backlight module, that is to say that light emitting source is arranged in backlight module or backlight module does not affect realization outward.
Take light emitting source as example as LED, in the time of transmission mode, lightening LED lamp, the light that now LED lamp sends enters from backlight module bottom, sends this and current LCD(liquid crystal display from optical modulator module top) principle similar, as shown in Figure 7a; In the time of reflective-mode, LED closes, and now external environment light passes optical modulator module from optical modulator module top, directive backlight module, because the bottom of backlight module is reflector plate, external environment light is reflected sheet and reflects away, now external surround lighting has served as light source, as shown in Figure 7b.
The principle of work of brief description above-described embodiment 1 display device.
As shown in Figure 8, when the changeable display screen of Transflective is operated under transmission mode, now user does not wish that screen is subject to the interference of surround lighting, and control module applies voltage V1 on automatically controlled phase delay chip, allows it be operated in 1/4 wavelength phase delay pattern.Now, external environment light becomes line polarisation (being assumed to be the line polarisation of horizontal direction) after by outmost polaroid, then change into rotatory polarization (being assumed to be dextrorotation rotatory polarization) by automatically controlled phase delay chip, again after the reflection of display screen, convert left-handed rotatory polarization to, again, by after automatically controlled phase delay chip, convert the line polarisation of vertical direction to, such line polarisation cannot pass through polaroid outgoing.And the light that display screen sends can pass through smoothly, therefore realize the inhibition to reflection of ambient light, can effectively improve contrast.
As shown in Figure 9, when the changeable display screen of Transflective is operated under reflective-mode, now screen will utilize environment reflection of light, and control module applies voltage V2 on automatically controlled phase delay chip, allows it be operated in non-phase delay pattern.Now, external environment luminous energy is smoothly by polaroid and automatically controlled phase delay chip, and after the reflection of display screen, outgoing reaches human eye smoothly.
It is apparent to those skilled in the art that device and/or equipment that above-mentioned the embodiment of the present application provides, and each step in method, they can concentrate on single calculation element, or are distributed on the network that multiple calculation elements form.Alternatively, they can be realized with the executable program code of calculation element.Thereby, they can be stored in memory storage and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Although the disclosed embodiment of the present invention as above, the embodiment that described content only adopts for ease of understanding the present invention, not in order to limit the present invention.Those of skill in the art under any the present invention; do not departing under the prerequisite of the disclosed spirit and scope of the present invention; can in the form of implementing and details, carry out any amendment and variation; but scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims was defined.
Claims (6)
1. a display device, is applied to electronic equipment, it is characterized in that, described display device comprises the changeable display screen of Transflective, automatically controlled phase delay chip, polaroid and control module, wherein:
The changeable display screen of described Transflective, for adopting respectively transmission mode or reflective-mode to show;
Described automatically controlled phase delay chip, is positioned on the changeable display screen of Transflective, and the power supply terminal of described automatically controlled phase delay chip is set to be connected with power supply;
Described polaroid, is positioned on described automatically controlled phase delay chip;
Described control module, be connected with the changeable display screen of described Transflective, automatically controlled phase delay chip respectively, in the time that the changeable display screen of described Transflective works in transmission mode, the input voltage of controlling described automatically controlled phase delay chip is the first voltage, in the time that the changeable display screen of described Transflective works in reflective-mode, the input voltage of controlling described automatically controlled phase delay chip is second voltage.
2. device as claimed in claim 1, is characterized in that,
Described automatically controlled phase delay chip, also in the time that its input voltage is the first voltage, works in 1/4 wavelength phase delay pattern, to the changeable display screen direction of described Transflective, line polarisation is converted into rotatory polarization, to described polaroid direction, rotatory polarization is converted into line polarisation.
3. device as claimed in claim 1, is characterized in that,
Described automatically controlled phase delay chip, also in the time that its input voltage is second voltage, works in non-phase delay pattern.
4. device as claimed in claim 1, is characterized in that,
The changeable display screen of described Transflective comprises optical modulator module and backlight module, optical modulator module is positioned on backlight module, described backlight module comprises light emitting source and reflector plate, wherein: the changeable display screen of Transflective is in the time of transmission mode, light emitting source is opened, and reflector plate is for reflecting light that light emitting source sends to optical modulator module; The changeable display screen of Transflective is in the time of reflective-mode, and light emitting source is closed, and reflector plate is for reflecting the light entering from optical modulator module.
5. device as claimed in claim 1, is characterized in that,
Described automatically controlled phase delay chip is made by producing electrooptical effect crystal.
6. an electronic equipment, is characterized in that, described electronic equipment comprises display device as claimed in claim 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060627.1A CN104008730A (en) | 2013-02-26 | 2013-02-26 | Display apparatus and electronic device |
| US14/188,984 US9812075B2 (en) | 2013-02-26 | 2014-02-25 | Display screen, electronic device and information processing method for the electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060627.1A CN104008730A (en) | 2013-02-26 | 2013-02-26 | Display apparatus and electronic device |
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| CN104008730A true CN104008730A (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310060627.1A Pending CN104008730A (en) | 2013-02-26 | 2013-02-26 | Display apparatus and electronic device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111103696A (en) * | 2019-12-30 | 2020-05-05 | 联想(北京)有限公司 | Electronic equipment and display equipment thereof |
| CN111429812A (en) * | 2019-12-19 | 2020-07-17 | 錼创显示科技股份有限公司 | Display device |
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| CN102856347A (en) * | 2011-06-27 | 2013-01-02 | 三星显示有限公司 | Display apparatus for controlling optical transmissivity |
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| US20020159007A1 (en) * | 1998-04-10 | 2002-10-31 | Nec Corporation | Reflection type liquid crystal display |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111429812A (en) * | 2019-12-19 | 2020-07-17 | 錼创显示科技股份有限公司 | Display device |
| CN111103696A (en) * | 2019-12-30 | 2020-05-05 | 联想(北京)有限公司 | Electronic equipment and display equipment thereof |
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Application publication date: 20140827 |
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