CN112394575A - Display device and electronic equipment - Google Patents
Display device and electronic equipment Download PDFInfo
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- CN112394575A CN112394575A CN201910746046.0A CN201910746046A CN112394575A CN 112394575 A CN112394575 A CN 112394575A CN 201910746046 A CN201910746046 A CN 201910746046A CN 112394575 A CN112394575 A CN 112394575A
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- display device
- substrate
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- liquid crystal
- display
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- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
- G02F1/133723—Polyimide, polyamide-imide
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
Abstract
The embodiment of the invention relates to a display device and electronic equipment. The display device includes: a display panel; a light conditioning device, the light conditioning device comprising: the first substrate is arranged on the upper surface of the display panel; a second substrate disposed opposite to the first substrate; the liquid crystal layer is arranged between the first substrate and the second substrate; and the display controller is used for applying an electric signal to the liquid crystal layer to adjust the orientation of liquid crystal molecules in the liquid crystal layer, so that the transmittance of light passing through the light adjusting device is between 30 and 95 percent. The embodiment of the invention not only can reduce the thickness of the whole display device and improve the weather resistance of the display device, but also indirectly adjusts the orientation of the liquid crystal molecules in the liquid crystal layer through the display controller, so that the display device can automatically adjust the transmittance of light according to the external light, reduce the reflection of the display device to the light to a certain extent, and further improve the visibility or the display effect of the display device.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display device and electronic equipment.
Background
In the existing OLED (Organic Light-Emitting Diode) display stack, the cathode in the display is a whole surface, and the cathode is usually made of a metal material with good conductivity, but the metal material has a high reflectivity and is very easy to reflect the external ambient Light, so in order to reduce or eliminate the visibility of the external ambient Light to the display, a polarizer is added in the display stack to absorb the external ambient Light.
However, the polarizer is thicker and is susceptible to moisture and thus fails, which is not in accordance with the trend of thinning the current OLED display. Accordingly, there is a need to ameliorate one or more of the problems with the related art solutions described above.
It is noted that this section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
Disclosure of Invention
An object of embodiments of the present invention is to provide a display device, which overcomes one or more of the problems due to the limitations and disadvantages of the related art, at least to some extent.
According to a first aspect of embodiments of the present invention, there is provided a display device including:
a display panel;
a light conditioning device, the light conditioning device comprising:
the first substrate is arranged on the surface of the display panel;
a second substrate disposed opposite to the first substrate;
the liquid crystal layer is arranged between the first substrate and the second substrate;
and the display controller is used for applying an electric signal to the liquid crystal layer to adjust the orientation of liquid crystal molecules in the liquid crystal layer, so that the transmittance of light passing through the light adjusting device is between 30 and 95 percent.
In an embodiment of the invention, the display panel includes a substrate, a first electrode layer, an organic light emitting layer, a second electrode layer, and an encapsulation layer, which are sequentially stacked from bottom to top.
In an embodiment of the invention, the first electrode layer or the second electrode layer is a patterned electrode layer to reduce reflection of external light.
In an embodiment of the present invention, the display device further includes:
a light sensor disposed on the encapsulation layer;
the display controller is also used for receiving the induction signal sent by the light sensor and controlling and adjusting the orientation of the liquid crystal molecules through the induction signal.
In an embodiment of the invention, the thickness of the light adjusting device is between 2 μm and 100 μm.
In an embodiment of the invention, the transmittance is between 60% and 95%.
In an embodiment of the invention, the first substrate and the second substrate are flexible transparent substrates.
In an embodiment of the invention, the opposite surfaces of the first substrate and the second substrate have transparent electrode layers, and the transparent electrode layers are electrically connected with the display controller.
In an embodiment of the invention, the display device further includes a touch functional layer disposed between the light adjusting device and the display panel.
According to a second aspect of embodiments of the present invention, there is provided an electronic apparatus including the display device described in the above embodiments.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
in the embodiment of the invention, according to the display device and the electronic equipment provided by the invention, the polarizer in the original display device is replaced by the light adjusting device, so that the thickness of the whole display device is reduced, the weather resistance of the display device is improved, and the orientation of liquid crystal molecules in the liquid crystal layer is indirectly adjusted through the display controller, so that the transmittance of the display device can be automatically adjusted according to external light, the reflection of the display device to the light is reduced to a certain extent, and the visibility or the display effect of the display device is further improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
Fig. 1 illustrates a stacked structure view of a display device in an exemplary embodiment of the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of embodiments of the invention, which are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.
First, a display device is provided in the present exemplary embodiment. Referring to fig. 1, the display device may include: the display panel 100, the light adjusting device 200, and the light adjusting device 200 further includes a first substrate 201, a second substrate 202, a liquid crystal layer 203, and a display controller.
The first substrate 201 is disposed on the upper surface of the display panel 100; the second substrate 202 is arranged opposite to the first substrate 201; the liquid crystal layer 203 is disposed between the first substrate 201 and the second substrate 202; the display controller is used for applying an electric signal to the liquid crystal layer 203 to adjust the orientation of liquid crystal molecules in the liquid crystal layer 203, so that the transmittance of light passing through the light adjusting device 200 is between 30% and 95%.
According to the display device that above-mentioned provided, replace the polaroid among the original display device with light regulation apparatus, not only reduced whole display device's thickness, improved this display device's weatherability, adjust the orientation of liquid crystal molecule in the liquid crystal layer through the display controller is indirect in addition, make display device can be according to the transmittance of external light automatic adjustment light, reduced this display device reflection to light to a certain extent, and then improve display device's visuality or display effect.
Next, each part of the above-described display device in the present exemplary embodiment will be described in more detail with reference to fig. 1.
In one embodiment, the light conditioning device 200 includes a first substrate 201, a second substrate 202, a liquid crystal layer 203, and a display controller.
The first substrate 201 is disposed on the upper surface of the display panel 100; the second substrate 202 is arranged opposite to the first substrate 201; the liquid crystal layer 203 is disposed between the first substrate 201 and the second substrate 202; the first substrate 201 and the second substrate 202 are flexible transparent substrates; the surfaces of the first substrate 201 and the second substrate 202 opposite to each other have a transparent electrode layer, and the transparent electrode layer is electrically connected to the display controller.
Specifically, as shown in fig. 1, the display panel 100 is an existing OLED display panel 100, and in order to solve the problems of poor light transmittance and thick polarizer and being susceptible to water vapor failure caused by the polarizer arranged on the OLED display panel 100, the polarizer on the original display panel 100 is replaced with the light adjusting device 200 in this embodiment. The adjusting device comprises a first substrate 201 and a second substrate 202 which are symmetrically arranged up and down, wherein the first substrate 201 and the second substrate 202 are flexible transparent substrates, specifically flexible PI (polyimide) substrates, and PI substrate materials have excellent high-temperature resistance, good mechanical properties and excellent chemical resistance, and can provide a good basis for manufacturing flexible OLED displays. In addition, the surfaces of the first substrate 201 and the second substrate 202 opposite to each other have transparent electrode layers, specifically, Indium Tin Oxide (ITO) films, also referred to as ITO conductive layers, are plated on the surfaces of the first substrate 201 and the second substrate 202 opposite to each other, and the conductive layers have high transmittance and high conductivity. Different electric fields are generated by the upper and lower electrode layers, so that liquid crystal molecules in the liquid crystal layer 203 between the first substrate 201 and the second substrate 202 are driven to twist, and the degree of light transmission is changed. For the specific turning process of driving the liquid crystal molecules by the electrode layer, reference may be made to the prior art, and details thereof are not repeated herein.
The transparent electrode layer is electrically connected to the display controller, and when external light passes through the liquid crystal layer 203 and the encapsulation layer 105 in the display panel 100 and is sensed by a light sensor, the light sensor will send out a sensing signal, and the sensing signal is received by the display controller, which will control the transparent electrode layer electrically connected to the display controller, thereby driving the liquid crystal molecules to turn.
In one embodiment, the display controller is configured to apply an electrical signal to the liquid crystal layer 203 to adjust the orientation of liquid crystal molecules in the liquid crystal layer 203 such that the transmittance of light passing through the light adjusting device 200 is between 30% and 95%.
Specifically, the display controller is connected to transparent electrode layers on the upper and lower sides of the liquid crystal layer 203, when external light passes through the liquid crystal layer 203, the external light is sensed by a light sensor disposed on the following encapsulation layer 105, the light sensor sends out a sensing signal in real time, and the sensing signal is sensed by the display controller, and at this time, according to the strength of the received sensing signal, i.e., the strength of the external light, the electric field between the transparent electrode layers connected to the display controller is controlled to change, so that the orientation of liquid crystal molecules in the liquid crystal layer 203 changes; when the external light passes through the liquid crystal layer 203 and the encapsulation layer 105 of the display panel 100 and is reflected by the electrode layer in the display panel 100, at this time, the orientation of the liquid crystal molecules is adjusted, that is, the transmittance of the light is changed accordingly, for example, if the external light is strong, the transmittance of the light passing through the device is between 50% and 60% through a series of adjustments in the light adjustment device 200, and if the external light is weak, the transmittance of the light passing through the device is between 80% and 95% through a series of adjustments in the light adjustment device 200, and the specific manner of adjusting the light transmittance according to the external light can be obtained according to experiments or other tests, without limitation.
In an embodiment, the display panel 100 includes a substrate 101, a first electrode layer 102, an organic light emitting layer 103, a second electrode layer 104, and an encapsulation layer 105, which are sequentially stacked from bottom to top. The first electrode layer 102 or the second electrode layer 104 is a patterned electrode layer to reduce reflection of external light.
Specifically, as shown in fig. 1, the display panel 100 may include a substrate 101, an anode (i.e., a first electrode layer 102), an organic light emitting layer 103, a patterned cathode (i.e., a second electrode layer 104), and an encapsulation layer 105, which are sequentially stacked from bottom to top, and reference may be made to the structure of the conventional OLED display. When external light passes through light adjusting device 200 and encapsulated layer 105 and reachs the cathode layer, because the better metal material of electric conductivity is usually chooseed for use to the cathode, and metal material's reflectivity is high, consequently for guaranteeing the visuality of display to a certain extent, needs the display to reduce the reflection to external light, so carries out the patterning with the negative pole in the display, can reduce the reflection to external light, has improved the visuality of this display to a certain extent.
In one embodiment, the display device further includes a light sensor disposed on the encapsulation layer 105; the display controller is also used for receiving the induction signal sent by the light sensor and controlling and adjusting the orientation of the liquid crystal molecules through the induction signal.
Specifically, the display device further includes a light sensor disposed on the encapsulation layer 105, but not limited thereto, and may also be disposed between the encapsulation layer 105 and the electrode layer, specifically referring to the prior art. After the external light passes through the liquid crystal layer 203, the external light is sensed by the light sensor arranged on the packaging layer 105, the light sensor sends out a sensing signal instantly, and the sensing signal is sensed by the display controller, and at the moment, the electric field between the transparent electrode layers connected with the light sensor is controlled to change according to the strength of the received sensing signal, namely the strength of the external light, so that the orientation of liquid crystal molecules in the liquid crystal layer 203 changes, and the light transmittance changes.
In one embodiment, the thickness of the light conditioning device 200 is between 2 μm and 100 μm; the transmittance is between 60% and 95%.
Specifically, in order to reduce the thickness of the OLED display, facilitate the manufacturing of a flexible display, and improve the weather resistance of the display device, the light ray adjusting device 200 is disposed on the OLED display panel 100, and the thickness of the light ray adjusting device 200 is between 2 μm and 100 μm, and the specific thickness may be set according to the actual situation, which is not limited herein. The orientation of the liquid crystal molecules in the liquid crystal layer 203 is adjusted by the intensity of the light, for example, in the case of dark light, the transmittance of the light is between 60% and 95%, but not limited thereto.
In an embodiment, the display device further includes a touch functional layer disposed between the light adjusting device 200 and the display panel 100.
Specifically, the touch functional layer further includes a touch electrode, and the touch functional layer is configured to receive a touch operation on a display screen, convert the touch operation into a signal, and send the signal to a processor for processing, so as to complete the touch operation on the display device, which can be understood with reference to the prior art specifically, and the touch functional layer is disposed on the display panel 100, that is, disposed between the light adjusting device 200 and the display panel 100.
The present exemplary embodiment further provides an electronic device, where the electronic device includes the display device described in the foregoing embodiment, which can be understood specifically according to the foregoing embodiment, and details are not described here again.
According to the display device and the electronic equipment, the polaroid in the original display device is replaced by the light adjusting device, the thickness of the whole display device is reduced, the weather resistance of the display device is improved, and the orientation of liquid crystal molecules in a liquid crystal layer is indirectly adjusted through the display controller in the light adjusting device, so that the display device can automatically adjust the transmittance of light according to external light, and the visibility or the display effect of the display device is further improved.
It is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the foregoing description are used for indicating or indicating the orientation or positional relationship illustrated in the drawings, and are used merely for convenience in describing embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims (10)
1. A display device, characterized in that the display device comprises:
a display panel;
a light conditioning device, the light conditioning device comprising:
the first substrate is arranged on the upper surface of the display panel;
a second substrate disposed opposite to the first substrate;
the liquid crystal layer is arranged between the first substrate and the second substrate;
and the display controller is used for applying an electric signal to the liquid crystal layer to adjust the orientation of liquid crystal molecules in the liquid crystal layer, so that the transmittance of light passing through the light adjusting device is between 30 and 95 percent.
2. The display device according to claim 1, wherein the display panel comprises a substrate, a first electrode layer, an organic light emitting layer, a second electrode layer and an encapsulation layer, which are sequentially stacked from bottom to top.
3. The display device according to claim 2, wherein the first electrode layer or the second electrode layer is a patterned electrode layer to reduce reflection of external light.
4. The display device according to claim 2, further comprising:
a light sensor disposed on the encapsulation layer;
the display controller is also used for receiving the induction signal sent by the light sensor and controlling and adjusting the orientation of the liquid crystal molecules through the induction signal.
5. The display device as claimed in claim 1, wherein the light conditioning means has a thickness of 2 μm to 100 μm.
6. The display device according to claim 1, wherein the transmittance is between 60% and 95%.
7. The display device according to claim 1, wherein the first substrate and the second substrate are flexible transparent substrates.
8. The display device according to claim 1, wherein surfaces of the first substrate and the second substrate which face each other have a transparent electrode layer, and the transparent electrode layer is electrically connected to the display controller.
9. The display device according to any one of claims 1 to 8, further comprising a touch functional layer disposed between the light conditioning device and the display panel.
10. An electronic device comprising the display device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910746046.0A CN112394575A (en) | 2019-08-13 | 2019-08-13 | Display device and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910746046.0A CN112394575A (en) | 2019-08-13 | 2019-08-13 | Display device and electronic equipment |
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| CN112394575A true CN112394575A (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910746046.0A Pending CN112394575A (en) | 2019-08-13 | 2019-08-13 | Display device and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226493A1 (en) * | 2022-05-25 | 2023-11-30 | 中兴通讯股份有限公司 | Display screen, under-screen photographing apparatus, and terminal device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735778A (en) * | 2017-04-19 | 2018-11-02 | 创王光电股份有限公司 | Light-emitting device |
| CN109860268A (en) * | 2019-03-15 | 2019-06-07 | 云谷（固安）科技有限公司 | Display device and display |
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2019
- 2019-08-13 CN CN201910746046.0A patent/CN112394575A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735778A (en) * | 2017-04-19 | 2018-11-02 | 创王光电股份有限公司 | Light-emitting device |
| CN109860268A (en) * | 2019-03-15 | 2019-06-07 | 云谷（固安）科技有限公司 | Display device and display |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226493A1 (en) * | 2022-05-25 | 2023-11-30 | 中兴通讯股份有限公司 | Display screen, under-screen photographing apparatus, and terminal device |
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