CN108039359B - ULED/OLED combined light-emitting body for display - Google Patents
ULED/OLED combined light-emitting body for display Download PDFInfo
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- CN108039359B CN108039359B CN201711278583.4A CN201711278583A CN108039359B CN 108039359 B CN108039359 B CN 108039359B CN 201711278583 A CN201711278583 A CN 201711278583A CN 108039359 B CN108039359 B CN 108039359B
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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
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
- H10K59/65—OLEDs integrated with inorganic image sensors
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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
- H10K59/351—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels comprising more than three subpixels, e.g. red-green-blue-white [RGBW]
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Abstract
The invention discloses a ULED \ OLED combined luminous body for a display, which comprises: a substrate; an epitaxial seed-setting film layer formed on the substrate; pixel: a large number of pixel points are formed on the epitaxial barrier thin film layer, wherein each pixel comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, each sub-pixel corresponds to a micro ULED and an OLED respectively, and one sub-pixel is lighted by the parallel connection of the micro ULED and the OLED; an LED controller: selectively controlling the micro ULED to be opened and closed; electrical interface matrix layer: directly electrically connected with each OLED. On the premise of having the advantages of the OLED display, the brightness of the display is improved.
Description
Technical Field
The invention relates to an LED luminous body. More particularly, the present invention relates to ULED \ OLED combination emitters for displays.
Background
OLED displays are an organic light emitting display technology, consisting of a very thin coating of organic material and a glass substrate. These organic materials emit light when an electric charge passes through them. Since the color of the light emitted from the OLED depends on the material of the organic light-emitting layer, manufacturers can change the material of the light-emitting layer to obtain the desired color. Active matrix organic light emitting displays have built-in electronic circuitry so that each pixel is independently driven by a corresponding circuit. The OLED has the excellent characteristics of simple structure, self-luminescence without a backlight source, high contrast, thin thickness, wide viewing angle, high reaction speed, wide use temperature range, simpler structure and manufacture process and the like, and can be used for flexible panels; the method is applicable to the fields of mobile phones, mobile network terminals and the like in the communication field; the method can be widely applied to PDAs, commercial PCs, household PCs and notebook computers in the field of computers; the product can be used in audio equipment, digital camera, portable DVD; the method is suitable for instruments and meters in the field of industrial application; in the transportation field, the OLED is used in GPS, airplane instruments, etc., and is recognized by research and development institutions and manufacturers in the field as an emerging application technology of a next-generation flat panel display.
The industrial prospect of the OLED is very wide in China, and enterprises in the industry are also striving to accumulate development experience, but factors such as a weak upstream link of an industrial chain in China and a lack of matching capability of the industry create a large development obstacle for manufacturers.
OLED displays consume the most power when fully white, and for any other display color the current is relatively small, since only white requires all the red, green and blue subpixels to be fully bright. For example, a 2.7 inch display only needs 5mA current to display a color icon or graph, but needs 80mA current to display a full white image, but theoretically, the white light does not consume the maximum power according to the light emitting characteristics, and the power consumption is determined by the brightness value. For example, red, blue, and green, which are 10 luminance values, together produce 30 luminance values of white light. Therefore, the red, blue and green brightness values are adjusted to 3.3 to be combined into a white light value of 10, and in practical application, a display which fully uses the OLED consumes more power than the theory in the white light, and displays darker than displays of other technologies in general, and has no effulgent color effect of other displays.
Disclosure of Invention
The invention aims to provide an ULED \ OLED combined light-emitting body, which has the advantages of an OLED display after being applied to the display.
It is another object of the present invention to provide a ULED/OLED combined light emitter, which can be applied to a display device without much current deviation from other colors when emitting white light.
It is another object of the present invention to provide a ULED/OLED combined emitter that provides more brilliant color light for the display relative to OLED displays.
To achieve these and other advantages and in accordance with the purpose of the present invention, there is provided a ULED/OLED combination light for a display, comprising:
a substrate;
an epitaxial seed-setting film layer formed on the substrate;
pixel: a large number of pixel points are formed on the epitaxial barrier thin film layer, each pixel comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, each sub-pixel corresponds to a micro ULED and an OLED respectively, one sub-pixel is connected and lightened by the micro ULED and the OLED in parallel, the micro ULED emits white light, and the OLED emits one of three primary colors;
an LED controller: selectively controlling the micro ULED to be opened and closed;
electrical interface matrix layer: directly electrically connected with each OLED.
The ULED/OLED combined light emitter for the display further comprises a large number of concave interfaces on the surface of the epitaxial barrier thin film layer, wherein the concave positions of the interfaces are used for placing LEDs, and the LEDs are used as fillers of the concave interfaces.
The invention discloses a ULED/OLED combined light emitter for a display, wherein in each pixel: the micro ULED corresponding to the first sub-pixel and the OLED jointly emit blue light in the working state; the second sub-pixel correspondingly micro ULED and the OLED jointly emit red light in the working state; the micro ULED corresponding to the third sub-pixel and the OLED jointly emit green light in the working state, and each pixel can emit three light colors in the power-on working state of the hybrid LED display.
The invention relates to a ULED/OLED combined light emitting body for a display, wherein micro ULEDs in combined LEDs corresponding to each sub-pixel in a pixel are preferably selected from gallium nitride compounds.
The ULED/OLED combined light-emitting body for the display is used for an LED as a filler of a concave interface on the surface of an epitaxial barrier thin film layer, and the material of the epitaxial barrier layer of the LED is preferably selected from gallium nitride compounds.
The invention relates to an ULED \ OLED combined luminous body for a display, wherein an electrical connection interface for connecting micro ULEDs in LEDs corresponding to each sub-pixel in a pixel and a circuit is a group of elements with vertical structures, and the micro ULEDs are electrically connected with the outside in a surface-mounted packaging mode through the elements with the vertical structures.
The ULED \ OLED combined light emitter for the display device, disclosed by the invention, further comprises a plurality of ULED interfaces on the surface of the epitaxial barrier thin film layer, each ULED interface comprises a bottom surface and a side surface, a first electrical interface formed by the bottom surfaces of the ULED interfaces is electrically connected with an LED controller, and a second electrical interface formed by the bottom surfaces of the ULED interfaces is electrically connected with a reference voltage; wherein the ULEDs are surface mounted with the ULEDs, and each ULED which is mounted together comprises: a top surface overlying a bottom surface of a corresponding ULED interface; a bottom surface; a first electrical connector formed on the top surface of the ULED for connecting to a corresponding first electrical interface of the ULED; a second electrical connector formed on the top surface of the ULED is connected to a second electrical interface of the corresponding ULED interface.
The invention relates to a ULED/OLED combined light emitter for display, wherein the first electric connector of each surface mounted ULED is arranged in a circle with a first diameter as a diameter; wherein the circle formed by each surface mounted ULED second electrical contact is at the circular periphery formed by the first electrical interface; wherein each ULED interface first electrical interface forms an arc of a circle having a first diameter, the arc being substantially circular except for an open end similar to a circle; wherein each ULED interface second electrical interface extends like a mouth at the first electrical interface indentation.
The ULED \ OLED combined light-emitting body for the display further comprises a plurality of OLED interfaces on the surface of the epitaxial crystal-deposition thin film layer, each OLED interface comprises a bottom surface, a side wall and a first electrode, the first electrodes are formed on the bottom surfaces of the OLED interfaces and are electrically connected with the LED controller, and the first electrodes and the second electrodes of the OLED interfaces are electrically connected with the electrical interface matrix layer.
The invention at least comprises the following beneficial effects:
the invention discloses a ULED/OLED combined luminous body for an LED electronic display, which comprises a substrate, micro-ULED and OLED, wherein the micro-ULED and OLED respectively correspond to sub-pixels, each pixel in each pixel comprises a first sub-pixel 21, a second sub-pixel 22 and a third sub-pixel 23, the first sub-pixel corresponds to the micro-ULED 11 and the OLED31 and is lighted by the micro-ULED 1 and the OLED31, the second sub-pixel 12 corresponds to the micro-ULED 12 and the OLED32 and is lighted by the micro-ULED 12 and the micro-ULED 32, the third sub-pixel corresponds to the micro-ULED 13 and the OLED33 and is lighted by the micro-ULED 13 and the OLED33, the micro-ULED is selectively controlled to be turned on or off by an LED controller, and the OLED is electrically connected with an electrical interface matrix layer Wide application temperature range, simple structure and manufacture process, etc.
The inventor of the invention finds that in the process of inventing the ULED/OLED combined light-emitting body applied to the LED electronic display, each sub-pixel in the pixel corresponds to one micro ULED and one OLED, and the LED epitaxial barrier layer material of the micro ULED is preferably selected from gallium nitride series compounds. The micro ULED is electrically connected with the outside in a surface-mounted packaging mode through the elements with the vertical structures. The light-emitting efficiency and the light efficiency of blue light, green light and red light LEDs in the ULED \ OLED combined light-emitting body can be improved.
The inventor of the present invention found in the research process that the ULED/OLED combined light emitter applied to the LED electronic display further includes micro ULED interfaces and OLED interfaces, each ULED interface is electrically connected to the LED controller through a first electrical interface formed on the bottom surface of the ULED interface, and is electrically connected to a reference voltage through a second electrical interface formed on the bottom surface of the ULED interface, wherein the ULED and the ULED are surface-mounted. Each OLED interface is electrically connected with the LED controller, and a first electrode and a second electrode of each OLED interface are electrically connected with the electrical interface matrix layer. The defect of dark color of the OLED electronic display in a working state is effectively overcome, the gorgeous color of the mixed LED luminous body is ensured when the mixed LED luminous body is applied to the LED electronic display, and the defect of high power consumption of the mixed LED luminous body in a white light working state is overcome.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The drawings are included to further explain the present invention and not to limit the scope of the invention.
FIG. 1 is a schematic diagram A of a ULED/OLED combined light emitter for LED electronic displays according to the present invention.
FIG. 2 is a schematic diagram B of the ULED \ OLED combined light emitter for LED electronic displays of the present invention.
FIG. 3 is a schematic view of the ULED interface in the ULED/OLED combined emitter for LED electronic displays of the present invention.
FIG. 4 is a schematic view of an OLED interface in the ULED \ OLED combined light emitter for LED electronic displays of the present invention.
Detailed Description
Embodiments of the present disclosure are described in the specification. The disclosed embodiments are merely examples, and other embodiments may take various and alternative forms. The numbers are not necessarily to scale; certain features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ embodiments.
The present invention is further described in detail below with reference to specific embodiments so that those skilled in the art can implement the invention without limiting the scope of the invention by referring to the description text.
In the present specification, the "ULED \ OLED combined light emitter" is composed of a micro ULED and an OLED, wherein the micro ULED is a micro inorganic light emitting diode, a crystal barrier layer thereof is formed by using gallium nitride as a raw material and carrying out crystal barrier in MOCVD, and the OLED is an organic light emitting diode, which is also called as an organic electroluminescent display and an organic light emitting semiconductor. The dungeon cloud (Ching w.tang) from professor deng chinese was found in 1979 in the laboratory as a semiconductor material in light-emitting diodes. The ULED interface and the bottom surface and the top surface of the OLED interface are defined relative to the ULED and OLED barrier crystal directions.
Example 1
The ULED \ OLED combined light-emitting body for the LED electronic display is shown in figures 1 and 2 and comprises the following components: a substrate 01; an epitaxial barrier thin film layer 02 formed on the substrate 01; pixel: a plurality of pixels formed on the epitaxial barrier thin film layer, wherein each pixel comprises a first sub-pixel 21, a second sub-pixel 22 and a third sub-pixel 23, the first sub-pixel corresponds to the micro ULED11 and the OLED31 and is lighted by the micro ULED1 and the OLED31, the second sub-pixel 12 corresponds to the micro ULED12 and the OLED32 and is lighted by the micro ULED12 and the OLED32, and the third sub-pixel corresponds to the micro ULED13 and the OLED 86 33 and is lighted by the micro ULED13 and the OLED 33; an LED controller: selectively controlling the micro ULED to be opened and closed; electrical interface matrix layer 03: directly electrically connected with each OLED. The micro ULED1 and the OLED31 corresponding to the first sub-pixel 21 emit blue light in the working state; the second sub-pixel 22 emits red light corresponding to the micro ULED12 and the OLED32 in the working state; the micro iled 13 associated with the third sub-pixel 23 and the OLED33 emit green light in its active state, and each pixel may emit three light colors in its powered active state of the hybrid LED display.
Example 2
As shown in fig. 3, the ULED/OLED combined light emitter for display device according to the present invention further includes ULED interfaces on the surface of the epitaxial barrier thin film layer, each ULED interface includes a bottom surface 212 and a side surface 214, a first electrical interface formed by the bottom surface of the ULED interface is electrically connected to the LED controller, and a second electrical interface formed by the bottom surface 212 of the ULED interface is electrically connected to the reference voltage; wherein the ULEDs are surface mounted with the ULEDs, and each ULED which is mounted together comprises: a top surface 132 overlying a bottom surface 212 of the corresponding ULED interface; a bottom surface; a first electrical connector 130 formed on upper ULED surface 132 is connected to a first electrical interface 216 of a corresponding ULED interface; a second electrical connector 504 formed on the top surface of the ULED is connected to a second electrical interface 502 of the corresponding ULED interface. Wherein the first electrical contact of each surface mounted ULED is arranged in a circle having a first diameter; wherein the circle formed by each surface mounted ULED second electrical contact is at the circular periphery formed by the first electrical interface; wherein each ULED interface first electrical interface forms an arc of a circle having a first diameter, the arc being substantially circular except for an open end similar to a circle; wherein each ULED interface second electrical interface extends like a mouth at the first electrical interface indentation.
As shown in fig. 4, the ule/OLED combination may also include a plurality of OLED interfaces 204, each OLED interface 204 includes a bottom surface 208, a sidewall 214, and a first electrode 210, the first electrode 210 is formed on the bottom surface 206 of the OLED interface and electrically connected to the LED controller, and the first electrode 210 and the second electrode 412 of the OLED interface are electrically connected to the electrical interface matrix layer.
It is obvious that those skilled in the art can obtain various effects not directly mentioned according to the respective embodiments without trouble from various structures according to the embodiments of the present invention.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (4)
1. A ULED/OLED combination for a display, comprising:
a substrate;
the LED light-emitting monomer is fixed on the substrate;
the LED luminous unit comprises pixel points corresponding to the LED luminous units: a large number of pixels are correspondingly formed on the epitaxial barrier thin film layer, wherein each pixel comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, each sub-pixel corresponds to a micro ULED and an OLED respectively, one sub-pixel is formed by connecting the micro ULED and the OLED in parallel and is lighted, the micro ULED emits white light, and the OLED emits one of three primary colors;
an LED controller: selectively controlling the micro ULED to be opened and closed;
electrical interface matrix layer: directly electrically connected with each OLED;
wherein, the electrical connection interface of the micro ULED corresponding to the sub-pixel in the pixel and the circuit connection is a group of elements with vertical structures, and the micro ULED is electrically connected with the outside in a surface fitting and packaging manner through the elements with the vertical structures;
the surface of the epitaxial barrier thin film layer further comprises a plurality of ULED interfaces, each ULED interface comprises a bottom surface and a side surface, a first electrical interface formed by the bottom surfaces of the ULED interfaces is electrically connected with the LED controller, and a second electrical interface formed by the bottom surfaces of the ULED interfaces is electrically connected with a reference voltage; wherein the ULEDs are surface mounted with the ULEDs, and each ULED which is mounted together comprises: a top surface overlying a bottom surface of a corresponding ULED interface; a bottom surface; a first electrical connector formed on the top surface of the ULED for connecting to a corresponding first electrical interface of the ULED; a second electrical connector formed on the top surface of the ULED for connecting to a second electrical interface of the corresponding ULED interface;
wherein the first electrical contact of each surface mounted ULED is arranged in a circle having a first diameter; wherein the circle formed by each surface mounted ULED second electrical contact is at the circular periphery formed by the first electrical interface; wherein each ULED interface first electrical interface forms an arc of a circle having a first diameter, the arc approximating a circle but resembling a circle having an open end; wherein each ULED interface second electrical interface extends like a mouth at the first electrical interface cutout;
the surface of the epitaxial barrier thin film layer further comprises a plurality of OLED interfaces, each OLED interface comprises a bottom surface, a side wall and a first electrode, the first electrodes are formed on the bottom surfaces of the OLED interfaces and are electrically connected with the LED controller, and the first electrodes and the second electrodes of the OLED interfaces are electrically connected with the electric interface matrix layer.
2. The ULED/OLED combined emitter for display of claim 1, wherein the epitaxial growth film further comprises a plurality of recessed interfaces on the surface thereof, the recessed interfaces are used for placing LEDs, and the LEDs are used as fillers of the recessed interfaces.
3. The ULED/OLED combination for displays as claimed in claim 1, wherein in each pixel: the micro ULED and the OLED corresponding to the first sub-pixel emit blue light; the second sub-pixel emits red light corresponding to the micro ULED and the OLED; the micro ULED and the OLED corresponding to the third sub-pixel emit green light, and each pixel corresponds to three light colors.
4. The ULED/OLED combination emitter for display according to any one of claims 1-2, wherein micro ULEDs corresponding to each sub-pixel in a pixel and LED epitaxial layers used as fillers for the recessed interface of the epitaxial barrier film layer surface are selected from gallium nitride based compounds.
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| CN201711278583.4A CN108039359B (en) | 2017-12-06 | 2017-12-06 | ULED/OLED combined light-emitting body for display |
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| CN108039359B true CN108039359B (en) | 2020-08-14 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106549034A (en) * | 2015-09-18 | 2017-03-29 | 环球展览公司 | Mixing escope |
| CN106782128A (en) * | 2017-01-24 | 2017-05-31 | 深圳市华星光电技术有限公司 | Micro- LED display panel and its manufacture method |
| CN106920790A (en) * | 2017-01-24 | 2017-07-04 | 中山大学 | A kind of full-color micro-display device and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10381335B2 (en) * | 2014-10-31 | 2019-08-13 | ehux, Inc. | Hybrid display using inorganic micro light emitting diodes (uLEDs) and organic LEDs (OLEDs) |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106549034A (en) * | 2015-09-18 | 2017-03-29 | 环球展览公司 | Mixing escope |
| CN106782128A (en) * | 2017-01-24 | 2017-05-31 | 深圳市华星光电技术有限公司 | Micro- LED display panel and its manufacture method |
| CN106920790A (en) * | 2017-01-24 | 2017-07-04 | 中山大学 | A kind of full-color micro-display device and preparation method thereof |
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