CN114122085B - OLED display panel - Google Patents
OLED display panel Download PDFInfo
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- CN114122085B CN114122085B CN202111326480.7A CN202111326480A CN114122085B CN 114122085 B CN114122085 B CN 114122085B CN 202111326480 A CN202111326480 A CN 202111326480A CN 114122085 B CN114122085 B CN 114122085B
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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
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
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- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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- 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]
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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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
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- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The embodiment of the application discloses an OLED display panel, which comprises a plurality of pixel units, electroluminescent blocks and voltage input assemblies, wherein each pixel unit comprises a plurality of sub-pixel units with different light-emitting colors, the electroluminescent blocks and the sub-pixel units are arranged in a one-to-one alignment mode, the voltage input assemblies are used for transmitting input voltage to two ends of each electroluminescent block, and at least two electroluminescent blocks corresponding to any pixel unit are respectively connected with different voltage input assemblies; the electroluminescent blocks are independently adjusted, and the transmittance is adjusted according to different ambient lights, so that the influence of external ambient light on the display effect is reduced, and the image quality is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to an OLED display panel.
Background
The application scenes of the OLED transparent display device are gradually increased, for example, the transparent refrigerator, the head up of the automobile, the large-size application field, and the like, but since the transparency of the transparent display is high, the display effect is affected by the ambient light when the external light changes, and the display effect is greatly reduced.
Therefore, the conventional OLED display panel has the technical problem of poor display effect due to the influence of ambient light.
Disclosure of Invention
The embodiment of the application provides an OLED display panel, which can solve the technical problem that the display effect of the existing OLED display panel is poor due to the influence of ambient light.
The embodiment of the application provides an OLED display panel, including a plurality of pixel units, pixel unit includes a plurality of different luminescent color's sub-pixel unit, OLED display panel still includes electroluminescent layer, electroluminescent layer includes a plurality of electroluminescent piece and voltage input subassembly, the voltage input subassembly is used for transmitting input voltage to electroluminescent piece both ends, wherein, electroluminescent piece with sub-pixel unit counterpoint one to one sets up, with arbitrary at least two that pixel unit corresponds electroluminescent piece respectively with the difference the voltage input subassembly is connected.
Optionally, in some embodiments of the present application, the pixel unit includes a first sub-pixel unit, a second sub-pixel unit, and a third sub-pixel unit, where the first sub-pixel unit is disposed in one-to-one alignment with the first electroluminescent block, the second sub-pixel unit is disposed in one-to-one alignment with the second electroluminescent block, and the third sub-pixel unit is disposed in one-to-one alignment with the third electroluminescent block, where in the same pixel unit, the first electroluminescent block, the second electroluminescent block, and the third electroluminescent block are respectively connected to different voltage input assemblies.
Optionally, in some embodiments of the present application, the first electroluminescent blocks corresponding to at least two of the pixel units are connected to the same voltage input component.
Optionally, in some embodiments of the present application, the first sub-pixel unit is a red sub-pixel unit, the second sub-pixel unit is a green sub-pixel unit, the third sub-pixel unit is a blue sub-pixel unit, and the transmittance of the second electroluminescent block is greater than the transmittance of the first electroluminescent block and greater than the transmittance of the third electroluminescent block.
Optionally, in some embodiments of the present application, the OLED display panel further includes a transmittance control module, the transmittance control module includes an input end and an output end, the input end is configured to receive a first signal, the first signal is converted into a second signal through processing of the transmittance control module, the output end is connected to the voltage input module, and transmits the second signal to the voltage input module, and the voltage input module adjusts the magnitude of the input voltage through the second signal.
Optionally, in some embodiments of the present application, the transmittance control module is in a manual setting mode, and the transmittance control module further includes a signal acquisition module, the signal acquisition module is connected to the input end, and the signal acquisition module is configured to acquire a manual setting instruction and convert the manual setting instruction into a first signal, and transmit the first signal to the input end.
Optionally, in some embodiments of the application, the manual setting mode at least includes a full transmittance mode, a full reflectance mode, and a partial transmittance mode, where the transmittance in the full transmittance mode is a maximum transmittance value, the transmittance in the full reflectance mode is a minimum transmittance value, and the partial transmittance mode at least includes a preset transmittance value, and the preset transmittance value is between the minimum transmittance value and the maximum transmittance value.
Optionally, in some embodiments of the present application, the transmittance control module is in an automatic adjustment mode, and the transmittance control module further includes a sensor module, a current measurement module, and a transmittance calculation module, where the transmittance calculation module is respectively connected to the sensor and the current measurement module, the sensor is used to receive and measure the intensity of the ambient light, the current measurement module is used to measure the current input of the sub-pixel unit, and the transmittance calculation module respectively receives the signals of the sensor and the current measurement module, and calculates to obtain the first signal.
Optionally, in some embodiments of the present application, the voltage input assembly includes a first transparent electrode and a second transparent electrode located at both ends of the electroluminescent block.
Optionally, in some embodiments of the present application, each of the sub-pixel units includes a light emitting portion including a light emitting side and a back side opposite to the light emitting side, at least the back side being provided with the electroluminescent layer.
The OLED display panel provided by the embodiment of the application is characterized in that the electroluminescent blocks are arranged in a one-to-one correspondence manner with the sub-pixel units, and meanwhile, part or all of the electroluminescent blocks are connected with different voltage input assemblies and are independently adjusted according to different ambient lights, so that the influence of external ambient lights on the display effect is reduced, and the image quality is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a first OLED display panel provided herein;
FIG. 2 is a schematic cross-sectional view of a second OLED display panel provided herein;
FIG. 3 is a schematic cross-sectional view of a third OLED display panel provided herein;
fig. 4 shows 5 display modes of the OLED display panel provided in the present application;
fig. 5a to 5f are schematic cross-sectional views illustrating a method for manufacturing an OLED display panel according to the present application.
Description of reference numerals:
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all 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. Furthermore, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the present application, are given by way of illustration and explanation only, and are not intended to limit the present application. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5a to fig. 5f, wherein fig. 1, fig. 2, and fig. 3 are schematic cross-sectional views of an OLED display panel provided in the present application, fig. 4 is a schematic cross-sectional view of a transparent display panel with 5 modes, and fig. 5a to fig. 5f are schematic cross-sectional views of a method for manufacturing an OLED display panel provided in the present application.
Referring to fig. 1, 2 and 3, the OLED display panel provided in the present application includes a plurality of pixel units 1, where the pixel units 1 include a plurality of sub-pixel units 1 with different light emitting colors, the OLED display panel further includes an electroluminescent layer 70, where the electroluminescent layer 70 includes a plurality of electroluminescent blocks and a voltage input assembly 90, and the voltage input assembly 90 is configured to transmit an input voltage to two ends of the electroluminescent blocks, where the electroluminescent blocks and the sub-pixel units 1 are arranged in a one-to-one alignment manner, and at least two electroluminescent blocks corresponding to any one of the pixel units 1 are respectively connected to different voltage input assemblies 90.
In this embodiment, the electroluminescent blocks and the sub-pixel units 1 are arranged in a one-to-one correspondence manner, and meanwhile, part or all of the electroluminescent blocks are connected to different voltage input assemblies 90, so that the ambient light transmittance of each sub-pixel unit 1 is separately adjusted according to different ambient lights, and the transmittance is adjusted according to different ambient lights, thereby reducing the influence of external ambient lights on the display effect and improving the image quality.
At least two of the electroluminescent blocks are respectively connected to different voltage input assemblies 90, and the input voltage of the electroluminescent block can be adjusted through the different voltage input assemblies 90, so as to adjust the transmittance.
The voltage input assembly 90 at least includes a first transparent electrode 901 and a second transparent electrode 902 located at two ends of the electroluminescent block, and the electroluminescent block is made of an electrochromic material.
The electrochromic material can be a chelate formed by lithium fluoride/lithium bromide and 2-hydrated tungsten trioxide, and can realize different chelate structures under the condition of power-up so as to adjust the light transmittance.
The OLED display panel may be a transparent OLED display panel, and referring to fig. 4, the transparent OLED display panel includes 5 transparent display modes.
The technical solution of the present application will be described with reference to specific embodiments, and a WOLED display panel is taken as an example for explanation.
Referring to fig. 1, 2 and 3, the WOLED display panel provided by the present application includes an array layer 10, a color filter layer 20, an anode layer 30, a white light emitting layer 40, a cathode layer 50, an encapsulation layer 60 and an electroluminescent layer 70 disposed on the encapsulation layer 60; the electroluminescent layer 70 comprises an electroluminescent block and a voltage input assembly 90, the voltage input assembly 90 comprising at least a first transparent electrode 901 and a second transparent electrode 902 at both ends of the electroluminescent block.
The color filter layer 20 includes a color block 201 and a black matrix 202, and the electroluminescent block includes the first electroluminescent block 801 aligned with the first sub-pixel unit 2, the second electroluminescent block 802 aligned with the second sub-pixel unit 3, and the third electroluminescent block 803 aligned with the third sub-pixel unit 4.
The first sub-pixel unit 2 may be any one of a red sub-pixel unit 1, a blue sub-pixel unit 1, and a green sub-pixel unit 1, and the second sub-pixel unit 3 and the third sub-pixel unit 4 may be another two of the red sub-pixel unit 1, the blue sub-pixel unit 1, and the green sub-pixel unit 1.
Referring to fig. 1, in one embodiment, in the same pixel unit 1, the first electroluminescent block 801, the second electroluminescent block 802 and the third electroluminescent block 803 are respectively connected to different voltage input devices 90.
It can be understood that the voltage input assembly 90 and the electroluminescent blocks are arranged in a one-to-one correspondence manner, and an individual voltage can be applied to each electroluminescent block, so that the transmittance of ambient light at any sub-pixel unit 1 can be adjusted, the uniformity of light can be improved, the influence of the ambient light on the sub-pixel unit 1 can be reduced, and the image quality can be improved.
In this embodiment, a voltage input assembly 90 corresponds to an electroluminescent block, so that a good adjusting effect can be achieved on ambient light, and the influence of the ambient light on the display effect is avoided.
Referring to fig. 2, in one embodiment, the electroluminescent blocks corresponding to at least two sub-pixel units 1 are connected to a voltage input device 90.
Wherein, the sub-pixel unit 1 can be an adjacent sub-pixel unit 1.
The sub-pixel units 1 may be sub-pixel units 1 of the same light emitting color.
In the present embodiment, by connecting a part of the electroluminescent blocks to the same voltage input device 90, the number of voltage input devices 90 can be reduced, and the cost can be reduced by reducing the number of voltage input devices 90 without affecting the adjustment of the ambient light.
Referring to fig. 3, in an embodiment, at least two first electroluminescent blocks 801 corresponding to the pixel units 1 are connected to the same voltage input device 90.
The first transparent electrodes 901 at one end of the adjacent first electroluminescent blocks 801 are connected to each other, the second transparent electrodes 902 at the other end of the adjacent first electroluminescent blocks 801 are connected to each other, and the two first transparent electrodes 901 and the two second transparent electrodes 902 are electrically connected by means of routing or the like, thereby forming a voltage input assembly 90.
It can be understood that the aperture ratios of the red sub-pixel, the blue sub-pixel and the green sub-pixel are different, and because the technical problem of uneven display brightness is easily caused under the condition of certain ambient light, in the present application, the adjacent first electroluminescent blocks 801 share the same voltage input component 90 for voltage adjustment, the adjacent second electroluminescent blocks 802 share the same voltage input component 90 for voltage adjustment, and the adjacent third electroluminescent blocks 803 share the third voltage input component 90 for adjustment, which not only can reduce the use of the voltage input component 90, but also can make the display brightness of the sub-pixels with different colors more uniform.
It should be noted that the electroluminescent block provided in this embodiment is used to compensate the non-uniform luminance of the sub-pixels with different colors, and because the luminance of the sub-pixels with different colors attenuates differently with the use time, the electroluminescent block can also adjust the transmittance of the ambient light according to the luminance of the sub-pixels with different colors, so that the luminance of the sub-pixels with different colors is the same; that is, the luminance of the blue sub-pixel plus the ambient light transmitted by the blue sub-pixel is equal to the luminance of the red sub-pixel plus the ambient light transmitted by the red sub-pixel.
In one embodiment, the first sub-pixel unit 2 is a red sub-pixel unit 1, the second sub-pixel unit 3 is a green sub-pixel unit 1, the third sub-pixel unit 4 is a blue sub-pixel unit 1, and the transmittance of the second electroluminescent block 802 is greater than the transmittance of the first electroluminescent block 801 and greater than the transmittance of the third electroluminescent block 803.
The aperture opening ratio of the second sub-pixel is smaller than that of the first sub-pixel and smaller than that of the third sub-pixel.
In this embodiment, the ambient light transmittance of the corresponding electroluminescent block is adjusted by the aperture ratio of the sub-pixel with different light-emitting colors in each pixel unit 1, and the transmittance and the aperture ratio are in an inverse correlation function.
Referring to fig. 4, the OLED display panel provided in the present application includes 5 display modes, specifically including: full display mode, full transparency mode, maximum transparency mode, transparent manual setting mode, and transparent automatic adjustment mode.
The full display mode, the full transparency mode, the maximum transparency mode and the transparent manual setting mode are manual modes, and the transparent automatic adjusting mode is an automatic mode.
In one embodiment, the OLED display panel further includes a transmittance control module, the transmittance control module includes an input end and an output end, the input end is configured to receive a first signal and convert the first signal into a second signal through the transmittance control module, the output end is connected to the voltage input module 90 and transmits the second signal to the voltage input module 90, and the voltage input module 90 adjusts the magnitude of the input voltage according to the second signal.
Wherein, the transmittance control module is used for regulating and controlling the input voltage of the voltage input module 90.
It can be understood that, in the manual mode, the signal received by the input terminal is obtained by manual input, that is, the transmittance value or the maximum transmittance or the transmittance is set to be 0 according to the transmittance of the actual requirement, the transmittance input signal is converted into a voltage signal, and then the input voltage of the voltage input module 90 is increased to realize different transmittances.
In this embodiment, the output signal (i.e. the input voltage) can be adjusted according to the input signal (i.e. the transmittance requirement signal), so as to independently control different electroluminescent blocks, and adjust different ambient light transmittances for different sub-pixel units 1, which has the following technical effects: the ambient light transmittance can be accurately set for each sub-pixel or sub-pixels in different areas.
In one embodiment, the transmittance control assembly is in a manual setting mode, and further comprises a signal acquisition module, wherein the signal acquisition module is connected with the input end and is used for acquiring a manual setting instruction, converting the manual setting instruction into a first signal and transmitting the first signal to the input end.
The signal acquisition module changes the manual setting instruction into a first signal, and the voltage input assembly 90 is adjusted through the transmittance control assembly through the first signal, so that the input voltage of the voltage input assembly 90 is obtained.
Wherein different input voltages correspond to different transmittances of the electroluminescent blocks.
In one embodiment, the manual setting mode at least includes a full transmittance mode, a full transmittance mode and a partial transmittance mode, the transmittance in the full transmittance mode is a maximum transmittance value, the transmittance in the full transmittance mode is a minimum transmittance value, and the partial transmittance mode at least includes a preset transmittance value, and the preset transmittance value is between the minimum transmittance value and the maximum transmittance value.
The partial transmission mode comprises a maximum transmission mode and a transparent manual setting mode.
Referring to fig. 4, in an embodiment, the transmittance control assembly is in an automatic adjustment mode, and further includes a sensor module, a current measurement module, and a transmittance calculation module, where the transmittance calculation module is respectively connected to the sensor and the current measurement module, the sensor is configured to receive and measure the intensity of ambient light, the current measurement module is configured to measure the current input magnitude of the sub-pixel unit 1, and the transmittance calculation module is configured to receive signals of the sensor and the current measurement module, and calculate to obtain a first signal.
The sensor module can be a light sensor and is used for sensing the intensity of ambient light and transmitting the sensed intensity of the ambient light to the transmittance calculation module in the form of a signal.
Wherein the sensor modules may be disposed in one-to-one correspondence with the input voltage components.
The sensor modules can also be arranged in one-to-one correspondence with the electroluminescent blocks.
The current measuring module is used for measuring the spontaneous light intensity of the sub-pixel unit 1 and transmitting the spontaneous light intensity to the transmittance calculating module in a signal form.
The transmittance calculation module needs to comprehensively consider the spontaneous light intensity of the sub-pixel unit 1 and the corresponding ambient light intensity, and then calculate to obtain the ambient light transmittance required to be realized by the electroluminescent block, so as to realize compensation for different luminance or uneven luminance of different sub-pixel units 1.
It can be understood that, in the automatic adjustment mode, the sensor module and the current measurement module are used to obtain the ambient light intensity and the spontaneous light intensity of the sub-pixel, and the transmittance calculation module is used to obtain the required transmittance (i.e. the first signal); the manual setting mode is to directly use the signal acquisition module to obtain the required transmittance (i.e. the first signal).
It should be noted that the first signal obtained in the automatic adjustment mode and the manual setting mode needs to be converted into the second signal through the transmittance control component, and then the second signal is used to adjust the input voltage of the voltage input component 90, so that the difference of the transmittance of the electroluminescent block is realized by adjusting and controlling the voltage at the two sides of the electroluminescent block.
In this embodiment, the automatic adjustment mode can more intelligently adjust the transmittance of the electroluminescent block, and can also achieve the effect of real-time adjustment, so that the luminance of the OLED display panel constantly maintains a relatively uniform state.
In one embodiment, the voltage input assembly 90 includes a first transparent electrode 901 and a second transparent electrode 902 located across the electroluminescent block.
In one embodiment, each of the sub-pixel cells 1 includes a light emitting portion including a light emitting side and a back side opposite to the light emitting side, at least the back side being provided with the electroluminescent layer 70.
The electroluminescent layer 70 may also be disposed in the light exit direction of the light exit portion, and the electroluminescent layer 70 may also play a role of reflecting ambient light, so as to avoid poor display brightness in a low light environment.
Wherein the back side is the other side opposite to the light emitting direction side of the light emitting part.
It can be understood that the electroluminescent block is disposed on the back side of the light emitting portion, and when ambient light or reflected light is emitted to the electroluminescent layer 70 from the back side along the light emitting direction, the electroluminescent layer 70 can adjust the intensity of the ambient light or reflected light, so as to compensate the brightness of the sub-pixel light emitting unit and improve the uniformity of the display brightness of the OLED display panel.
In this embodiment, the electroluminescent layer 80 is disposed on the back side of the OLED display panel, and the area or transmittance of the front light emitting area may not be reduced, so that the display effect of the front is not affected.
The application provides an OLED display panel and a preparation method of the OLED display panel, the transmittance of each sub-pixel unit 1 corresponding to ambient light can be independently adjusted through the OLED display panel, the difference of self-luminous brightness of each sub-pixel unit 1 is compensated, and the whole display brightness of the OLED display panel is more uniform; referring to fig. 5a to 5f, a method for manufacturing an oled display panel includes:
s1: sequentially preparing an array layer 10 and a color filter layer 20; s2: preparing an anode layer 30; s3: preparing a white light emitting layer 40; s4: preparing to obtain a cathode layer 50; s5: preparing to obtain an encapsulation layer 60; s6: the electroluminescent layer 70 is prepared on the encapsulation layer 60, the electroluminescent layer 70 includes a plurality of electroluminescent blocks arranged at intervals and a voltage input assembly 90, and the voltage input assembly 90 at least includes a first transparent electrode 901 and a second transparent electrode 902 disposed on two sides of the electroluminescent blocks.
The OLED display panel provided in this embodiment includes a plurality of pixel units, where each pixel unit includes a plurality of sub-pixel units with different light-emitting colors, and the OLED display panel further includes an electroluminescent layer, where the electroluminescent layer includes a plurality of electroluminescent blocks and a voltage input component, and the voltage input component is configured to transmit an input voltage to two ends of the electroluminescent blocks, where the electroluminescent blocks and the sub-pixel units are arranged in one-to-one alignment, and at least two electroluminescent blocks corresponding to any one pixel unit are respectively connected to different voltage input components; the electroluminescent blocks and the sub-pixel units are arranged in one-to-one correspondence, and meanwhile, part or all of the electroluminescent blocks are connected with different voltage input assemblies, so that the ambient light transmittance of each sub-pixel unit is independently adjusted according to different ambient lights, and different transmittance designs can be performed according to different ambient light influences on each sub-pixel unit, thereby reducing the influence of external ambient light on the display effect and improving the image quality.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The touch display device provided by the embodiment of the present application is described in detail above, and the principle and the implementation of the present application are explained in the present application by applying specific examples, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. The utility model provides an OLED display panel, its characterized in that includes a plurality of pixel units, pixel unit includes a plurality of different luminous colour's sub-pixel unit, OLED display panel still includes electroluminescent layer, electroluminescent layer includes a plurality of electroluminescent blocks and voltage input subassembly, voltage input subassembly is used for transmitting input voltage to electroluminescent block both ends, sub-pixel unit includes the illuminating part, the illuminating part include the light-emitting side and with the dorsal part that the light-emitting side is opposite, the dorsal part reaches the light-emitting side all is provided with electroluminescent layer, wherein, electroluminescent block with sub-pixel unit one-to-one is counterpointed and is set up, with arbitrary at least two that pixel unit corresponds electroluminescent block respectively with the difference voltage input subassembly is connected, pixel unit includes first sub-pixel unit, second sub-pixel unit, third sub-pixel unit, electroluminescent block include with the first electroluminescent block that first sub-pixel unit counterpoint set up, with the second electroluminescent block that second sub-pixel unit counterpoint set up, with the third sub-pixel unit counterpoint set up, wherein two correspond electroluminescent block with the same electroluminescent block.
2. The OLED display panel of claim 1, wherein the first sub-pixel unit is disposed in one-to-one alignment with the first electroluminescent block, the second sub-pixel unit is disposed in one-to-one alignment with the second electroluminescent block, and the third sub-pixel unit is disposed in one-to-one alignment with the third electroluminescent block, wherein the first electroluminescent block, the second electroluminescent block, and the third electroluminescent block are respectively connected to different voltage input elements in a same pixel unit.
3. The OLED display panel of claim 2, wherein the first sub-pixel unit is a red sub-pixel unit, the second sub-pixel unit is a green sub-pixel unit, the third sub-pixel unit is a blue sub-pixel unit, and the transmittance of the second electroluminescent block is greater than the transmittance of the first electroluminescent block and greater than the transmittance of the third electroluminescent block.
4. The OLED display panel of claim 1, further comprising a transmittance control assembly, wherein the transmittance control assembly comprises an input for receiving a first signal and converting the first signal into a second signal by processing of the transmittance control assembly, and an output connected to the voltage input assembly for transmitting the second signal to the voltage input assembly, wherein the voltage input assembly adjusts the magnitude of the input voltage according to the second signal.
5. The OLED display panel of claim 4, wherein the transmittance control assembly is in a manual setting mode, and further comprising a signal acquisition module, wherein the signal acquisition module is connected to the input terminal, and the signal acquisition module is configured to acquire a manual setting command, convert the manual setting command into a first signal, and transmit the first signal to the input terminal.
6. The OLED display panel of claim 5, wherein the manual setting mode comprises at least a full transmittance mode, a full transmittance mode and a partial transmittance mode, wherein the transmittance in the full transmittance mode is a maximum transmittance value, the transmittance in the full transmittance mode is a minimum transmittance value, and the partial transmittance mode comprises at least one preset transmittance value, and the preset transmittance value is between the minimum transmittance value and the maximum transmittance value.
7. The OLED display panel of claim 4, wherein the transmittance control module is in an auto-adjusting mode, the transmittance control module further comprises a sensor module, a current measuring module, and a transmittance calculating module, the transmittance calculating module is respectively connected to the sensor and the current measuring module, the sensor is used for receiving and measuring the intensity of the ambient light, the current measuring module is used for measuring the current input magnitude of the sub-pixel unit, and the transmittance calculating module is used for respectively receiving the signals of the sensor and the current measuring module and calculating to obtain the first signal.
8. The OLED display panel of claim 1, wherein the voltage input assembly includes a first transparent electrode and a second transparent electrode positioned across the electroluminescent block.
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