CN205451704U - OLED (organic light -emitting diode) display - Google Patents
OLED (organic light -emitting diode) display Download PDFInfo
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- CN205451704U CN205451704U CN201620246755.4U CN201620246755U CN205451704U CN 205451704 U CN205451704 U CN 205451704U CN 201620246755 U CN201620246755 U CN 201620246755U CN 205451704 U CN205451704 U CN 205451704U
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Abstract
The embodiment of the utility model provides a OLED (organic light -emitting diode) display relates to demonstration technical field, can avoid the condition that single light sensor was sheltered from and unable response ambient light intensity changes among the prior art, and it is higher to respond sensitivity. This OLED (organic light -emitting diode) display is including setting up at the regional OLED component of every sub -pixel and being used for the drive the luminous driver part of OLED component, still include a plurality of photoelectric conversion part, every photoelectric conversion part is used for converting the light energy of external environment light into electric energy, and at least to one the power supply of OLED component.
Description
Technical field
This utility model relates to Display Technique field, particularly relates to a kind of OLED display.
Background technology
Organic electroluminescent LED (OrganicLightEmittingDiode, it is called for short OLED) it is a kind of electroluminescent device of organic thin film, it has that preparation technology is simple, low cost, be easily formed the advantage such as flexible structure, visual angle width, therefore, the Display Technique utilizing Organic Light Emitting Diode has become a kind of important Display Technique.
At present, due to the impact of ambient light so that in the case of ambient light is relatively strong, occur that user cannot see the situation of display picture clearly, have a strong impact on the visual experience of user.
In order to realize display brightness being automatically adjusted with ambient light light and shade in prior art, use independent light sensor detection environmental light intensity often, then regulate whole display brightness according to the environmental light intensity of feedback.
But, in actual use, if light sensor is blocked, then just cannot realize according to the light and shade adjusting display brightness of ambient light, and reaction is slow, response time is long.
Utility model content
Embodiment of the present utility model provides a kind of OLED display, single light sensor in prior art can be avoided to be blocked and cannot respond to the situation of environmental light intensity change, and response sensitivity is higher.
For reaching above-mentioned purpose, embodiment of the present utility model adopts the following technical scheme that
There is provided a kind of OLED display, including being arranged on the OLED element of each subpixel area and for driving the driver part of described OLED element luminescence；Also including multiple photoelectric conversion part, each described photoelectric conversion part for being converted to electric energy by the luminous energy of external environmental light, and at least powers to a described OLED element.
Preferably, described photoelectric conversion part and described OLED element one_to_one corresponding.
It is further preferred that described driver part includes the first voltage end and the second voltage end；Described OLED element at least includes anode, negative electrode and luminescent layer positioned there between, and wherein, described anode is connected with described first voltage end, and described negative electrode is connected with described second voltage end；
Described photoelectric conversion part includes solaode, the first electric capacity and commutation diode；The positive pole of described solaode is connected with one end of described first electric capacity, and negative pole is connected with the negative electrode of described OLED element；The other end of described first electric capacity is connected with the anode of described OLED element；The positive pole of described commutation diode is connected with described first voltage end, and negative pole is connected with the anode of described OLED element.
It is further preferred that described photoelectric conversion part is arranged on described subpixel area；Described solaode is arranged on the outside of described OLED element, and L-shaped setting.
Optionally, described solaode includes positive pole, negative pole and the n type semiconductor layer being disposed there between and p type semiconductor layer；Wherein, described N-type semiconductor and cathode contact, described P-type semiconductor and described positive contact.
Further, described solaode also includes the intrinsic silicon semiconductor layer being arranged between described N-type semiconductor and described P-type semiconductor.
Preferably, described driver part also includes being arranged on the switching transistor of each described subpixel area, driving transistor and the second electric capacity；The grid of described switching transistor is connected with grid line, and the first pole is connected with data wire, and the second pole is connected with the grid of described driving transistor；First pole of described driving transistor is connected with described first voltage end, and the second pole is connected with the positive pole of described commutation diode；One end of described second electric capacity is extremely connected with the second of described switching transistor, and the other end is connected with the negative pole of described commutation diode.
Embodiment of the present utility model provides a kind of OLED display, by arranging driver part, when in spite of when having external environmental light to irradiate, OLED element can be driven luminous and normally show；On this basis, by arranging photoelectric conversion part, when there being external environmental light to irradiate, increase along with intensity of illumination, the electric energy that photoelectric conversion part produces increases the most accordingly, offer to the pressure reduction between the anode and negative electrode of OLED element increases the most accordingly, so that the luminosity of OLED element promotes along with the increase of environment illumination intensity, thus the automatic regulation function that display brightness changes can be realized with ambient light intensity, it is to avoid in prior art, single light sensor is blocked and cannot respond to the situation of environmental light intensity change.Wherein, the electric energy produced due to photoelectric conversion part acts directly in OLED element in the form of voltage, and the sensitivity that therefore display brightness changes with ambient light intensity is higher.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The schematic top plan view one of a kind of OLED display that Fig. 1 provides for this utility model embodiment；
The schematic top plan view two of a kind of OLED display that Fig. 2 provides for this utility model embodiment；
The structural representation one of a kind of OLED element that Fig. 3 (a) provides for this utility model embodiment；
The structural representation two of a kind of OLED element that Fig. 3 (b) provides for this utility model embodiment；
The structural representation three of a kind of OLED element that Fig. 3 (c) provides for this utility model embodiment；
The structural representation four of a kind of OLED element that Fig. 3 (d) provides for this utility model embodiment；
The equivalent circuit diagram that Fig. 4 powers to OLED element for a kind of photoelectric conversion part that this utility model embodiment provides；
A kind of photoelectric conversion part that Fig. 5 provides for this utility model embodiment and the equivalent circuit diagram that driver part is powered to OLED element；
The schematic diagram of a kind of solaode set-up mode that Fig. 6 provides for this utility model embodiment；
The structural representation one of a kind of solaode that Fig. 7 provides for this utility model embodiment；
The structural representation two of a kind of solaode that Fig. 8 provides for this utility model embodiment.
Reference:
1-subpixel area；10-underlay substrate；20-OLED element；201-anode；202-negative electrode；203-luminescent layer；204-hole injection layer；205-hole transmission layer；206-electron injecting layer；207-electron transfer layer；208-hole blocking layer；30-photoelectric conversion part；301-solaode；3011-positive pole；3012-negative pole；3013-N type semiconductor layer；3014-P type semiconductor layer；3015-intrinsic silicon semiconductor layer；302-the first electric capacity；303-commutation diode；401-switching transistor；402-drives transistor；403-the second electric capacity；V1-the first voltage end；V2-the second voltage end；SL-grid line；DL-data wire.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
This utility model embodiment provides a kind of OLED display, as depicted in figs. 1 and 2, including being arranged on the OLED element 20 of each subpixel area 1 and for driving the driver part of OLED element 20 luminescence (not identifying in Fig. 1 and Fig. 2)；Further comprising multiple photoelectric conversion part 30, each photoelectric conversion part 30 for being converted to electric energy by the luminous energy of external environmental light, and at least powers to an OLED element 20.
For OLED element 20, as shown in Fig. 3 (a), at least a part of which includes anode 201, negative electrode 202 and the luminescent layer 203 positioned there between being arranged on underlay substrate 10.
As shown in Fig. 3 (b), OLED element 20 can also include the hole injection layer 204 being arranged between anode 201 and luminescent layer 203.On this basis, in order to improve cavity transmission ability, as shown in Fig. 3 (c), OLED element 20 can also include the hole transmission layer 205 being arranged between hole injection layer 204 and luminescent layer 203.
With reference to shown in Fig. 3 (b), OLED element 20 can also include the electron injecting layer 206 being arranged between negative electrode 202 and luminescent layer 203.On this basis, in order to improve electron transport ability, with reference to shown in Fig. 3 (c), OLED element 20 can also include the electron transfer layer 207 being arranged between electron injecting layer 206 and luminescent layer 203.
Additionally, as shown in Fig. 3 (d), OLED element 20 can also include the hole blocking layer 208 being arranged between electron transfer layer 207 and luminescent layer 203.
Wherein, anode 201 can be transparent or opaque.When anode 201 is transparent, transparent conductive material, such as ITO (tin indium oxide), IZO (indium zinc oxide) etc. can be used to make；When anode 201 is opaque, transparency conducting layer/opaque metal layer/transparency conducting layer three-decker, such as ITO conductive layer/Ag conductive layer/ITO conductive layer three-decker can be used.
Negative electrode 202 can be translucent or opaque.Tube cathode 202 is not translucent or opaque, all uses metal material to make, by controlling the thickness of negative electrode 202, can control it translucent or opaque.
According to anode 201, negative electrode 202 whether transparent, this OLED element 20 can carry out that the end is luminous, top is luminous and double-side, specifically can be configured as required, not limit at this.
It should be noted that, first, owing to OLED display can be divided into AMOLED (Active-matrixOrganicLightEmittingDiode, active matrix type organic light emitting diode) display and PMOLED (Passivematrixorganiclightemittingdiode, passive organic light-emitting diode) display, therefore depending on the concrete structure of driver part can be according to the type of OLED display, specifically do not limit at this, as long as OLED element 20 can be driven luminous.
Wherein, no matter whether photoelectric conversion part 30 has electric energy to produce, and above-mentioned driver part can drive OLED element 20 luminous, makes OLED display normally show.
Concrete, when photoelectric conversion part 30 does not has electric energy to produce, and i.e. irradiates without external environmental light, OLED element 20 fully relies on driver part offer and normally shows to the voltage difference luminescence between its anode 201 and negative electrode 202.When photoelectric conversion part 30 has electric energy to produce, when i.e. having external environmental light to irradiate, driver part still provides its voltage normally shown to OLED element 20, meanwhile, the electric energy that photoelectric conversion part 30 produces provides the most in the form of voltage to OLED element 20, now, it is provided that the voltage difference between the anode 201 and negative electrode 202 of OLED element 20 increased to the voltage difference between anode 201 and negative electrode 202 compared to the offer of only driver part.
Second, for photoelectric conversion part 30, it is as the criterion the luminous energy of external environmental light being converted to electric energy.
Additionally, the position that arranges of photoelectric conversion part 30 is not defined, as long as the electric energy that can be produced provides in the form of voltage to OLED element 20, and can be superimposed upon driver part provide be as the criterion to the voltage between anode 201 and negative electrode 202.
This utility model embodiment provides a kind of OLED display, by arranging driver part, when in spite of when having external environmental light to irradiate, OLED element 20 can be driven luminous and normally show；On this basis, by arranging photoelectric conversion part 30, when there being external environmental light to irradiate, increase along with intensity of illumination, the electric energy that photoelectric conversion part 30 produces increases the most accordingly, offer to the pressure reduction between the anode 201 and negative electrode 202 of OLED element 20 increases the most accordingly, so that the luminosity of OLED element 20 promotes along with the increase of environment illumination intensity, thus the automatic regulation function that display brightness changes can be realized with ambient light intensity, it is to avoid in prior art, single light sensor is blocked and cannot respond to the situation of environmental light intensity change.Wherein, the electric energy produced due to photoelectric conversion part 30 acts directly in OLED element 20 in the form of voltage, and the sensitivity that therefore display brightness changes with ambient light intensity is higher.
Preferably, as in figure 2 it is shown, photoelectric conversion part 30 and OLED element 20 one_to_one corresponding.
That is, each OLED element 20 has the automatic regulation function that display brightness changes with ambient light intensity, thus can realize local that display brightness changes with ambient light intensity, be fine-tuned, and degree of regulation is higher.
It is further preferred that as shown in Figure 4, the equivalent circuit diagram powered to OLED element 20 for photoelectric conversion part 30, wherein the anode 201 of OLED element 20 is connected with the first voltage end V1 in driver part, and negative electrode 202 is connected with the second voltage end V2 in driver part.Wherein, the second voltage end V2 such as can be with ground connection.
Described photoelectric conversion part 30 includes solaode the 301, first electric capacity 302 and commutation diode 303.
Wherein, the positive pole of solaode 301 and one end of the first electric capacity 302 are connected, and negative pole is connected with the negative electrode 202 of OLED element 20.
The other end of the first electric capacity 302 is connected with the anode 201 of OLED element 20.
The positive pole of commutation diode 303 and the first voltage end V1 are connected, and negative pole is connected with the anode 201 of OLED element 20.
In this utility model embodiment, the electric energy that solaode 301 produces can be stored in the form of voltage by the first electric capacity 302, can be by the voltage-drop loading of the positive pole of solaode 301 at the anode 201 of OLED element 20 by commutation diode 303.When the external environment light intensity being radiated on solaode 301 changes, on solaode 301 positive pole, produced voltage can change therewith so that the brightness of OLED element 20 also can change therewith；When external environmental light stops being radiated on solaode 301, loss of voltage on solaode 301 positive pole, the brightness making OLED element 20 will be returned to the state not having external environmental light to irradiate, thus realizes the automatic regulation function that display brightness changes with ambient light intensity.
Further, owing to PMOLED applies when large-sized monitor, there is the one side of its deficiency, therefore preferably employ AMOLED.Based on this, as it is shown in figure 5, driver part can also include being arranged on the switching transistor 401 of each subpixel area 1, driving transistor 402 and the second electric capacity 403.
Wherein, the grid of switching transistor 401 is connected with grid line SL, and the first pole is connected with data wire DL, and the second pole is connected with the grid driving transistor 402.
The first pole driving transistor 402 is connected with the first voltage end V1, and the second pole is connected with the positive pole of commutation diode 303.
One end of second electric capacity 403 is extremely connected with the second of switching transistor 401, and the other end is connected with the negative pole of commutation diode 303.
Based on above-mentioned, it is preferred that photoelectric conversion part 30 is arranged on described subpixel area 1；Further, as shown in Figure 6, solaode 301 is arranged on the outside of OLED element 20, and L-shaped setting.
In this utility model embodiment, by solaode 301 being arranged l-shaped, on the one hand can more produce electric energy, on the other hand can avoid taking more subpixel area 1.
Optionally, as it is shown in fig. 7, solaode 301 includes positive pole 3011, negative pole 3012 and the n type semiconductor layer 3013 being disposed there between and p type semiconductor layer 3014；Wherein, N-type semiconductor 3013 contacts with negative pole 3012, and P-type semiconductor 3014 contacts with positive pole 3011.
Further, as shown in Figure 8, solaode 301 also includes the intrinsic silicon semiconductor layer 3015 being arranged between N-type semiconductor 3013 and P-type semiconductor 3014.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; change can be readily occurred in or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with described scope of the claims.
Claims (7)
1. an OLED display, including being arranged on the OLED element of each subpixel area and for driving the driver part of described OLED element luminescence；It is characterized in that,
Also including multiple photoelectric conversion part, each described photoelectric conversion part for being converted to electric energy by the luminous energy of external environmental light, and at least powers to a described OLED element.
OLED display the most according to claim 1, it is characterised in that described photoelectric conversion part and described OLED element one_to_one corresponding.
OLED display the most according to claim 2, it is characterised in that described driver part includes the first voltage end and the second voltage end；
Described OLED element at least includes anode, negative electrode and luminescent layer positioned there between, and wherein, described anode is connected with described first voltage end, and described negative electrode is connected with described second voltage end；
Described photoelectric conversion part includes solaode, the first electric capacity and commutation diode；
The positive pole of described solaode is connected with one end of described first electric capacity, and negative pole is connected with the negative electrode of described OLED element；
The other end of described first electric capacity is connected with the anode of described OLED element；
The positive pole of described commutation diode is connected with described first voltage end, and negative pole is connected with the anode of described OLED element.
OLED display the most according to claim 3, it is characterised in that described photoelectric conversion part is arranged on described subpixel area；
Described solaode is arranged on the outside of described OLED element, and L-shaped setting.
OLED display the most according to claim 3, it is characterised in that described solaode includes positive pole, negative pole and the n type semiconductor layer being disposed there between and p type semiconductor layer；
Wherein, described N-type semiconductor and cathode contact, described P-type semiconductor and described positive contact.
OLED display the most according to claim 5, it is characterised in that described solaode also includes the intrinsic silicon semiconductor layer being arranged between described N-type semiconductor and described P-type semiconductor.
OLED display the most according to claim 3, it is characterised in that described driver part also includes being arranged on the switching transistor of each described subpixel area, driving transistor and the second electric capacity；
The grid of described switching transistor is connected with grid line, and the first pole is connected with data wire, and the second pole is connected with the grid of described driving transistor；
First pole of described driving transistor is connected with described first voltage end, and the second pole is connected with the positive pole of described commutation diode；
One end of described second electric capacity is extremely connected with the second of described switching transistor, and the other end is connected with the negative pole of described commutation diode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620246755.4U CN205451704U (en) | 2016-03-28 | 2016-03-28 | OLED (organic light -emitting diode) display |
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| CN201620246755.4U CN205451704U (en) | 2016-03-28 | 2016-03-28 | OLED (organic light -emitting diode) display |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167942A (en) * | 2017-07-18 | 2017-09-15 | 京东方科技集团股份有限公司 | Color membrane substrates, display device and display methods |
| CN107680548A (en) * | 2017-10-23 | 2018-02-09 | 京东方科技集团股份有限公司 | Pixel cell and its driving method, image element circuit, liquid crystal panel and display device |
| CN108877614A (en) * | 2018-07-27 | 2018-11-23 | 维沃移动通信有限公司 | A kind of LED circuit, display screen, electronic equipment and detection method |
-
2016
- 2016-03-28 CN CN201620246755.4U patent/CN205451704U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167942A (en) * | 2017-07-18 | 2017-09-15 | 京东方科技集团股份有限公司 | Color membrane substrates, display device and display methods |
| CN107680548A (en) * | 2017-10-23 | 2018-02-09 | 京东方科技集团股份有限公司 | Pixel cell and its driving method, image element circuit, liquid crystal panel and display device |
| CN107680548B (en) * | 2017-10-23 | 2020-03-31 | 京东方科技集团股份有限公司 | Pixel unit and driving method thereof, pixel circuit, liquid crystal panel and display device |
| CN108877614A (en) * | 2018-07-27 | 2018-11-23 | 维沃移动通信有限公司 | A kind of LED circuit, display screen, electronic equipment and detection method |
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