CN109449191A - A kind of OLED display panel and its control method, display device - Google Patents
A kind of OLED display panel and its control method, display device Download PDFInfo
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- CN109449191A CN109449191A CN201811405705.6A CN201811405705A CN109449191A CN 109449191 A CN109449191 A CN 109449191A CN 201811405705 A CN201811405705 A CN 201811405705A CN 109449191 A CN109449191 A CN 109449191A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 238000005286 illumination Methods 0.000 claims description 16
- 239000010409 thin film Substances 0.000 claims description 12
- 239000010408 film Substances 0.000 claims description 7
- 238000013507 mapping Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 239000013589 supplement Substances 0.000 description 19
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004020 luminiscence type Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
This application discloses a kind of OLED display panel and its control methods, display device, the OLED display panel includes array substrate, and at least one OLED device of the non-display area positioned at the array substrate, wherein, at least one described OLED device is white light OLED device, and as flash lamp.Solves the technical problem that display screen light filling effect is poor in the prior art.
Description
Technical Field
The application relates to the technical field of display panels, in particular to an OLED display panel, a control method thereof and a display device.
Background
The OLED display device has the advantages of being thin, light, wide in viewing angle, capable of actively emitting light, continuously adjustable in light emitting color, low in cost, fast in response speed, low in energy consumption, low in driving voltage, wide in working temperature range, simple in production process, high in light emitting efficiency, capable of flexibly displaying and the like, is already listed as a next generation display technology with great development prospect, and is widely applied to various electronic products.
With the rapid development of electronic technology, the photographing function is also widely applied to various electronic products, and in the photographing process of the electronic device, due to the influence of ambient light, a photographed picture is not clear, for example, at night or in a cloudy day, under the condition that the intensity of the ambient light is not strong, so that in the photographing process, when the intensity of the ambient light is insufficient, the electronic device needs to supplement the ambient light. At present, electronic equipment can carry out the light filling through display device, but, because display device's luminance is limited, when needing to carry out a large amount of light fillings under the condition at night or cloudy day, carry out the light filling through display device, can't satisfy the demand of current shooting, lead to the effect of light filling relatively poor.
Disclosure of Invention
The application provides an OLED display panel, a control method thereof and a display device, which are used for solving the technical problem that the effect of light supplement is poor due to light supplement through the display device in the prior art.
In a first aspect, the present application provides an OLED display panel comprising: the OLED display device comprises an array substrate and at least one OLED device located in a non-display area of the array substrate; wherein,
the at least one OLED device is a white OLED device and acts as a flash lamp.
In the above structure, the array substrate includes a non-display area, and at least one white OLED device is disposed in the non-display area as a flash lamp. It should be noted that at least one white OLED device can be used for light supplement.
The OLED display panel that this application embodiment provided sets up at least one white light OLED device as the flash light in array substrate's non-display area, at the in-process of shooing, when environment illumination intensity reaches not enough, carries out the light filling through at least one white light OLED device to improve the effect of light filling.
Optionally, the at least one OLED device comprises: the OLED device comprises a top-emitting OLED device and a bottom-emitting OLED device, wherein the top-emitting OLED device serves as a front flash lamp, and the bottom-emitting OLED device serves as a rear flash lamp.
The OLED display panel that this application embodiment provided sets up top emission OLED device as leading flash light and end emission OLED device as rearmounted flash light in array substrate's non-display area, when environment illumination intensity reaches not enough, top emission OLED device with end emission OLED device can carry out the light filling simultaneously, also can carry out the light filling alone, has improved OLED display panel's suitability.
Optionally, the at least one OLED device and the OLED device located in the display area are on the same side of the array substrate, and the thin film transistor electrically connected to the at least one OLED device and the thin film transistor electrically connected to the OLED device located in the display area are formed at the same time and have the same film structure.
Optionally, the non-display area includes a profiled area and a non-profiled area, and the at least one OLED device is disposed in the profiled area.
Optionally, the at least one OLED device is a multi-monochromatic light emitting layer stacked OLED device or a white OLED device in which light emitted from a plurality of OLED light emitting units is mixed.
Optionally, the at least one OLED device is connected to the same driving chip.
Optionally, the at least one OLED device emits light with an area of less than 5mm by 5mm and an emission luminance of no less than 5 lm.
In a second aspect, the present application provides a display device comprising the OLED display panel according to the first aspect.
In a third aspect, the present application provides a method for controlling an OLED display panel as described in the first aspect, the method comprising:
receiving a shooting control instruction input by a user, and determining the current ambient illumination intensity based on the shooting control instruction, wherein the shooting control instruction comprises a light intensity type and a shooting instruction;
determining a value of the fill-in light intensity corresponding to the current ambient light intensity based on a preset mapping relation between the light intensity and the fill-in light intensity;
judging whether the value of the fill-in light intensity is larger than the strongest brightness value corresponding to the OLED device for displaying;
and if so, controlling the brightness of the at least one OLED device based on the value of the fill-in light intensity, so that the brightness of the at least one OLED device meets the shooting requirement of a user.
According to the method provided by the embodiment of the application, the value of the light supplement intensity is determined according to the current ambient illumination intensity, whether the OLED device for displaying can meet the requirement of the current light supplement is determined based on the comparison between the value of the light supplement intensity and the value of the strongest illumination intensity corresponding to the OLED device for displaying, the brightness of at least one OLED device is determined, the OLED device for displaying and the at least one OLED device are combined to supplement light, the light supplement effect is improved, and the quality of a shot picture is further improved.
Optionally, determining the current ambient light intensity based on the shooting control instruction includes:
determining a light intensity type corresponding to the current environment based on the shooting instruction, wherein the light intensity type is used for indicating the intensity of the ambient illumination;
determining the current ambient light intensity based on the light intensity type; or
And controlling a sensor to acquire the current ambient light intensity based on the shooting instruction.
Drawings
Fig. 1 is a schematic cross-sectional view of an OLED display panel according to an embodiment of the present disclosure;
fig. 2 is a top view of an OLED display panel according to an embodiment of the present disclosure;
fig. 3 is a flowchart of a control method of an OLED display panel according to an embodiment of the present disclosure.
Reference numerals: 1-an array substrate; 2-a non-display area; 3-at least one OLED device; 4-a display area; 5-OLED devices for display; 6-thin film transistors; 7-a film layer; 8-a driving chip; 21-a profiled region; 22-non-profiled regions; 31-top emitting OLED device; 32-bottom emitting OLED devices.
Detailed Description
In the solutions provided in the embodiments of the present application, the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to better understand the technical solutions, the technical solutions of the present application are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
As shown in fig. 1, the present application provides an OLED display panel including: the OLED display device comprises an array substrate 1 and at least one OLED device 3 located in a non-display area 2 of the array substrate, wherein the at least one OLED device 3 is a white OLED device and serves as a flash lamp.
The OLED display panel comprises an array substrate 1 and OLED devices, wherein the array substrate 1 comprises a display area 4 and a non-display area 2 arranged around the display area 4, the OLED devices 5 used for displaying are arranged in the display area and are used as a display screen, at least one OLED device 3 is arranged in the non-display area 2 and is used as a flash lamp, namely, the OLED devices 5 used for displaying and the OLED devices 3 used for the flash lamp are simultaneously arranged on the array substrate 1.
Therefore, in the OLED display panel, at least one OLED device 3 is arranged on the array substrate 1 and serves as a light supplement lamp, which is beneficial to improving the light supplement effect of the OLED display panel.
As shown in fig. 1, in the OLED display panel, at least one OLED device 3 and the OLED device 5 located in the display area are located on the same side of the array substrate 1 and have the same film layer, that is, at least one OLED device 3 and the OLED device 5 located in the display area are located on the same side of the array substrate 1 and are located on the same film layer of the OLED display panel.
Specifically, the thin film transistor 6 electrically connected to the at least one OLED device 3 is located on the same film layer 7 as the thin film transistor 6 electrically connected to the OLED device 5 located in the display region. The thin film transistor 6 electrically connected with the at least one OLED device 3 and the OLED device 5 located in the display area can be manufactured simultaneously, so that the thin film transistor 6 is manufactured in the manufacturing process without adding a new process or a mask plate, and the manufacturing of the OLED display panel is facilitated, and the thin film transistor 6 electrically connected with the at least one OLED device 3 and the OLED device 5 located in the display area can be manufactured respectively, however, the manufacturing mode of the thin film transistor 6 is not limited, for example, the thin film transistor 6 is formed in an evaporation or inkjet printing mode.
Specifically, in the above OLED display panel, the at least one OLED device 3 is an OLED device in which multiple single color light emitting layers are stacked or a white OLED device in which light emitted from multiple OLED light emitting units is mixed.
The specific way of emitting white light by the light emitting layer of the at least one OLED device 3 includes: OLED device 3 can adopt two monochromatic luminescent layers of blue light and orange light to pile up or red light, the three monochromatic luminescent layers of green light and blue light pile up and make OLED device 3 luminescent layer give off white light, OLED device 3 also can send different monochromatic light respectively through a plurality of OLED luminescence units, the monochromatic light of difference with the transmission mixes and obtains white light, for example, some OLED luminescence units send the blue light, another part OLED luminescence unit sends orange light, obtain white light through mixing blue light and orange light, be favorable to promoting above-mentioned OLED display panel's light filling effect.
Specifically, the at least one OLED device 3 is connected to the same driving chip 8.
The driving chip 8 is disposed in the non-display area 2 of the array substrate, and is located on the same side of the array substrate 1 as the at least one OLED device 3, and the film layer is the same as the at least one OLED device 3, the at least one OLED device 3 is connected to the driving chip 8 through a wire, and the driving chip 8 and the at least one OLED device 3 may be located on the same side of the display area 4, or may be located on different sides of the display area 4, which is not limited herein.
Specifically, the area of light emitted by the at least one OLED device is less than 5mm by 5mm, and the light emitting brightness is not less than 5 lm.
In the OLED display panel, the light emitting area of the at least one OLED device 3 is smaller than 5mm x 5mm, the light emitting brightness is not smaller than 5lm, the area occupied by the at least one OLED device 3 is limited, and the applicability of the OLED display panel is improved.
As shown in fig. 2, in order to improve the applicability of the OLED display panel, in the above OLED display panel, the at least one OLED device 3 includes: top-emitting OLED device 31 and bottom-emitting OLED device 32, where top-emitting OLED device 31 serves as a front flash and bottom-emitting OLED device 32 serves as a rear flash.
Specifically, the non-display area 2 includes a profiled area 21 and a non-profiled area 22, the top-emitting OLED device 31 and the bottom-emitting OLED device 32 are disposed in the profiled area 21 on the same side of the display area 4, the top-emitting OLED device 31 and the bottom-emitting OLED device 32 are disposed opposite to each other in the profiled area 21, the top-emitting OLED device 31 and the bottom-emitting OLED device 32 may be disposed adjacent to each other, or the top-emitting OLED device 31 and the bottom-emitting OLED device 32 may be disposed non-adjacent to each other.
The application provides a display device, which comprises the OLED display panel.
The present application provides a method for controlling an OLED display panel according to the first aspect, which is further described in detail below with reference to the drawings of the specification, and a specific implementation manner of the method may include the following steps (a method flow is shown in fig. 3):
step 301, a terminal receives a shooting control instruction input by a user, and determines the current ambient light intensity based on the shooting control instruction, wherein the shooting control instruction comprises a light intensity type and a shooting instruction.
Specifically, the shooting control instruction input by the user may include a light intensity type set by the user according to the current shooting environment, where the light intensity type is used to indicate the intensity of the ambient light, for example, the light intensity type includes a strong light, a medium light, or a weak light, and a preset mapping relationship between the light intensity type and the ambient light intensity is stored in the terminal database, that is, different light intensity types correspond to different ambient light intensity ranges, for example, the ambient light intensity range corresponding to the strong light is 1000Lux to 5000Lux, the ambient light intensity range corresponding to the medium light is 100Lux to 1000Lux, and the ambient light intensity corresponding to the weak light is 0.5Lux to 100 Lux. The shooting control instruction can be a light intensity type input by a user, and can also be a shooting instruction generated by the terminal detecting the operation of clicking a shooting button by the user. Since the shooting control instruction includes various information, there are various ways for the terminal to determine the current ambient light intensity based on the shooting control instruction, including but not limited to:
mode 1, when the terminal detects that the user clicks the operation of shooting the button, the terminal collects the value of the current ambient light intensity through the photosensitive sensor.
And 2, when the terminal receives the light intensity type input by the user, the terminal determines the range of the current environment illumination intensity based on the relationship between the light intensity type and the environment illumination intensity.
Step 302, the terminal determines a value of the fill-in light intensity corresponding to the current ambient light intensity based on a preset mapping relationship between the light intensity and the fill-in light intensity.
And after the terminal determines the current ambient light intensity, determining a corresponding value of the supplementary light intensity based on the current ambient light intensity.
And step 303, the terminal judges whether the value of the fill light intensity is greater than the strongest brightness value corresponding to the OLED device for displaying.
And 304, if the light supplement intensity is larger than the preset value, the terminal controls the brightness of the at least one OLED device based on the value of the light supplement intensity, so that the brightness of the at least one OLED device meets the shooting requirement of a user.
When the terminal determines that the value of the supplementary lighting intensity is larger than the strongest brightness value corresponding to the OLED device for displaying, determining a difference value between the value of the supplementary lighting intensity and the strongest brightness value corresponding to the OLED device for displaying, determining a control current value or a control voltage value corresponding to the difference value of the supplementary lighting intensity based on the supplementary lighting intensity, and sending the control current value or the control voltage value to a driving chip in an OLED display panel, wherein the driving chip drives at least one OLED device in the OLED display panel to emit light according to the control current value or the control voltage value, so as to realize supplementary lighting of the current environment. It should be understood that when the value of the fill-in light intensity is less than or equal to the strongest luminance value corresponding to the OLED device for display, the luminance of the OLED device for display may meet the current fill-in light requirement, and then at least one OLED device is not turned on.
According to the method provided by the embodiment of the application, the value of the light supplement intensity is determined according to the current ambient illumination intensity, whether the OLED device for displaying can meet the requirement of the current light supplement is determined based on the comparison between the value of the light supplement intensity and the value of the strongest illumination intensity corresponding to the OLED device for displaying, the brightness of at least one OLED device is determined, the OLED device for displaying and the at least one OLED device are combined to supplement light, the light supplement effect is improved, and the quality of a shot picture is further improved.
For example, the terminal acquires that the current ambient illumination intensity is 10(Lux) through the photosensitive sensor, the terminal determines that the supplementary illumination intensity corresponding to the ambient illumination intensity is 10Lux is 30lm, the strongest brightness corresponding to the OLED device for display is 5lm, the light emitting area of at least one OLED device is 4mm x 4mm, the difference value between the supplementary illumination intensity and the strongest brightness corresponding to the OLED device for display is 25lm, and when the brightness of at least one OLED device is 25lm and the light emitting area is 4mm x 4mm, the value of the control current of the at least one OLED device is determined based on the relationship between the light emitting area of the OLED device, the light emitting brightness and the control current, and the drive chip controls the at least one OLED device to emit light based on the value of the control current, so as to improve the light supplement effect.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. An OLED display panel, comprising: the OLED display device comprises an array substrate and at least one OLED device located in a non-display area of the array substrate; wherein,
the at least one OLED device is a white OLED device and acts as a flash lamp.
2. The OLED display panel of claim 1, wherein said at least one OLED device includes: the OLED device comprises a top-emitting OLED device and a bottom-emitting OLED device, wherein the top-emitting OLED device serves as a front flash lamp, and the bottom-emitting OLED device serves as a rear flash lamp.
3. The OLED display panel of claim 1, wherein the at least one OLED device is on a same side of the array substrate as the OLED device located in the display region, and the thin film transistor electrically connected to the at least one OLED device is formed at the same time as the thin film transistor electrically connected to the OLED device located in the display region, having a same film structure.
4. The OLED display panel of claim 1, wherein the non-display area includes a profiled area and a non-profiled area, the at least one OLED device being disposed in the profiled area.
5. The OLED display panel of claim 1, wherein the at least one OLED device is a multi-monochromatic light emitting layer stacked OLED device or a white OLED device in which light emitted from a plurality of OLED light emitting units is mixed.
6. The OLED display panel of claim 5, wherein the at least one OLED device is connected to the same driver chip.
7. The OLED display panel of claim 6, wherein the at least one OLED device emits light with an area of less than 5mm by 5mm and an emission luminance of not less than 5 lm.
8. A display device comprising the OLED display panel according to any one of claims 1 to 7.
9. A method of controlling the OLED display panel as claimed in any one of claims 1 to 7, comprising:
receiving a shooting control instruction input by a user, and determining the current ambient illumination intensity based on the shooting control instruction, wherein the shooting control instruction comprises a light intensity type and a shooting instruction;
determining a value of the fill-in light intensity corresponding to the current ambient light intensity based on a preset mapping relation between the light intensity and the fill-in light intensity;
judging whether the value of the fill-in light intensity is larger than the strongest brightness value corresponding to the OLED device for displaying;
and if so, controlling the brightness of the at least one OLED device based on the value of the fill-in light intensity, so that the brightness of the at least one OLED device meets the shooting requirement of a user.
10. The method of claim 9, wherein determining a current ambient lighting intensity based on the capture control instructions comprises:
determining a light intensity type corresponding to the current environment based on the shooting instruction, wherein the light intensity type is used for indicating the intensity of the ambient illumination;
determining the current ambient light intensity based on the light intensity type; or
And controlling a sensor to acquire the current ambient light intensity based on the shooting instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811405705.6A CN109449191B (en) | 2018-11-23 | 2018-11-23 | OLED display panel, control method thereof and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811405705.6A CN109449191B (en) | 2018-11-23 | 2018-11-23 | OLED display panel, control method thereof and display device |
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| CN109449191A true CN109449191A (en) | 2019-03-08 |
| CN109449191B CN109449191B (en) | 2021-08-03 |
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| CN111223905A (en) * | 2020-01-10 | 2020-06-02 | Tcl华星光电技术有限公司 | Display panel and preparation method thereof |
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| CN109449191B (en) | 2021-08-03 |
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