CN108039359B - A ULED\OLED combined illuminator for display - Google Patents

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

A ULED\OLED combined illuminator for display

technical field

The present invention relates to LED luminaires. More specifically, the present invention relates to combined ULED\OLED illuminators for displays.

Background technique

An OLED display is an organic light-emitting display technology that consists of a very thin coating of organic material and a glass substrate. These organic materials emit light when an electric charge passes through them. The color of OLED light emission depends on the material of the organic light-emitting layer, so manufacturers can obtain the desired color by changing the material of the light-emitting layer. Active-matrix organic light-emitting displays have built-in electronic circuitry so that each pixel is independently driven by a corresponding circuit. OLED has the advantages of simple structure, self-illumination without backlight, high contrast ratio, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide operating temperature range, simple structure and process, etc. Advantages, in the commercial field OLED display can be applied to POS machines, ATM machines, copiers, game machines, etc.; in the communication field, it can be applied to mobile phones, mobile network terminals and other fields; in the computer field, it can be widely used in PDAs, commercial PCs In the field of consumer electronics, it can be applied to audio equipment, digital cameras, portable DVDs; in the field of industrial applications, it is suitable for instrumentation, etc.; in the field of transportation, it is used in GPS, aircraft instruments, etc. , OLED is recognized by R&D institutions and manufacturers in the field as the next-generation flat-panel display emerging application technology.

The prospect of China's OLED industry is very broad, and companies in the industry are also trying to accumulate development experience. However, the upstream links of the domestic industrial chain are weak, and the industry's lack of supporting capabilities has created relatively large obstacles for the majority of manufacturers to develop.

An OLED display draws the most power when it is fully white, and relatively little current for any other display color, because only white requires all red, green, and blue subpixels to be fully lit. For example, a 2.7-inch monitor only needs 5mA to display color icons or graphics, but needs 80mA to present a full-white image. However, theoretically, white light does not consume the most power according to the luminous characteristics, and the power consumption is determined by the brightness value. of. For example, red, blue, and green with a brightness value of 10 will produce white light with a brightness value of 30 when they are lit together. Therefore, the red, blue, and green brightness values are adjusted to 3.3 to synthesize a white light value of 10. In practical applications, a display that uses OLED not only consumes more power in white light than theoretically, but also displays more power than other displays in general. Tech's displays are dimmer and don't have the brilliance of other displays.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a ULED\OLED combined light-emitting body, which can have the advantages of an OLED display after being applied to a display.

Another object of the present invention is to provide a ULED\OLED combined light-emitting body, so that when it is applied to a display, it can emit white light without too much deviation from other light color currents.

Another object of the present invention is to provide a ULED\OLED combined light-emitting body, which makes its color light more splendid than the OLED display after being applied to the display.

In order to achieve the object and other advantages according to the present invention, there is provided a ULED\OLED combined illuminator for a display, comprising:

a substrate;

The epitaxial barrier crystal film layer is the epitaxial barrier crystal film layer formed on the substrate;

Pixel: a large number of pixels formed on the epitaxial barrier crystal film layer, wherein each pixel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, each sub-pixel corresponds to a micro ULED and an OLED, and a sub-pixel It is lit by the parallel connection of micro ULED and OLED, in which micro ULED emits white light, and OLED emits one of the three primary colors;

LED controller: can selectively control the on and off of micro ULED;

Electrical interface matrix layer: directly electrically connected to each OLED.

The ULED\OLED combined light-emitting body for display of the present invention further includes a large number of concave interfaces on the surface of the epitaxial barrier crystal thin film layer, and the concave interfaces are used to place LEDs, and the LEDs are used as fillers for the concave interfaces.

In the ULED\OLED combined illuminator for display of the present invention, in each pixel: the micro ULED and the OLED corresponding to the first sub-pixel jointly emit blue light in the working state; the second sub-pixel corresponding to the micro ULED and the OLED In the working state, red light is jointly emitted; the micro ULED and OLED corresponding to the third sub-pixel jointly emit green light in the working state, and each pixel can emit three light colors corresponding to the hybrid LED display in its power-on working state.

In the ULED\OLED combined light-emitting body for display according to the present invention, in the micro ULED in the combined LED corresponding to each sub-pixel in the pixel, the material of the LED epitaxial barrier crystal layer is preferably selected from gallium nitride based compounds.

The ULED\OLED combined light-emitting body for display according to the present invention is used for the LED used as the filler of the concave interface on the surface of the epitaxial barrier crystal film layer, and the material of the LED epitaxial barrier crystal layer is preferably selected from gallium nitride based compounds .

In the ULED\OLED combined light-emitting body for display of the present invention, the electrical connection interface between the micro ULED and the circuit in the LED corresponding to each sub-pixel in the pixel is a group of vertical structure components, and the micro ULED passes through the group of vertical components. The components of the structure are electrically connected to the outside in the form of surface-mount packaging.

The ULED\OLED combined light-emitting body for display of the present invention further includes a large number of ULED interfaces on the surface of the epitaxial barrier crystal thin film layer, each ULED interface includes a bottom surface and a side surface, and the first electrical interface formed by the bottom surface of the ULED interface It is electrically connected to the LED controller, and the second electrical interface formed by the bottom surface of the ULED interface is electrically connected to the reference voltage; wherein the ULED and the ULED are surface mounted, and each ULED mounted together includes: a top surface, which is connected to the ULED. The bottom surface of the corresponding ULED interface is superimposed; a bottom surface; a first electrical plug formed on the top surface of the ULED is connected to the first electrical interface of the corresponding ULED interface; a second electrical plug formed on the top surface of the ULED is connected to the corresponding ULED A second electrical interface of the interface is connected.

In the ULED\OLED combined light-emitting body for display according to the present invention, the first electrical connector of each surface-mounted ULED is set to be a circle with a first diameter as the diameter; wherein each surface-mounted ULED has the first electrical connector The circle formed by the two electrical connectors is on the periphery of the circle formed by the first electrical interface; wherein the first electrical interface of each ULED interface forms an arc with the first diameter as the diameter, and the arc is nearly circular, but similar to the circular arc. There is an open end on the top; wherein the second electrical interface of each ULED interface extends like a mouth at the gap of the first electrical interface.

The ULED\OLED combined light-emitting body for display of the present invention further includes a plurality of OLED interfaces on the surface of the epitaxial barrier crystal film layer, and each OLED interface includes a bottom surface, a side wall, and a first electrode, and the first electrode forms a The bottom surface of the OLED interface is electrically connected to the LED controller, and the first electrode and the second electrode of the OLED interface are electrically connected to the electrical interface matrix layer.

The present invention includes at least the following beneficial effects:

The inventor of the present invention invented a ULED\OLED combined light-emitting body for LED electronic display by combining ULED\OLED light-emitting body, including substrate, micro ULED, OLED, micro ULED, OLED respectively corresponding to sub-pixels, each pixel Each pixel includes a first sub-pixel 21, a second sub-pixel 22, and a third sub-pixel 23. The first sub-pixel corresponds to micro ULED11 and OLED31 and is lit by micro ULED1 and OLED31, and the second sub-pixel 12 corresponds to micro ULED12 and OLED32. , is lit by micro ULED12 and OLED32, the third sub-pixel corresponds to micro ULED13 and OLED33, and is lit by microULED13 and OLED33, the micro ULED is selectively controlled by the LED controller to turn on or off, and the OLED and electrical interface matrix layer is electrically Connection, the hybrid LED illuminant of the present invention is used for hybrid LED electronic display, so that the LED electronic display has simple structure, high contrast ratio, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide operating temperature range, structure and The manufacturing process is simpler and other beneficial effects.

The inventor of the present invention found in the process of inventing a ULED\OLED combined illuminator applied to an LED electronic display, wherein each sub-pixel in a pixel corresponds to a micro ULED and an OLED, wherein the LED epitaxial barrier layer material of the micro ULED It is preferably selected from gallium nitride based compounds. The electrical connection interface between the micro ULED and the circuit is a group of vertical structure elements, and the micro ULED is electrically connected to the outside world in the form of surface-mounted package through the group of vertical structure elements. It can improve the light emitting rate and light efficiency of blue, green and red LEDs in ULED\OLED combined illuminants.

The inventor of the present invention found in the research process that the ULED\OLED combined illuminator applied to the LED electronic display further includes a micro ULED interface and an OLED interface, and each ULED interface is formed by the bottom surface of the first electrical interface and the LED controller electrical interface. The second electrical interface formed by the bottom surface of the ULED interface is electrically connected to the reference voltage, wherein the ULED and the ULED are surface mounted. Each OLED interface is electrically connected to the LED controller, and the first electrode and the second electrode of the OLED interface are electrically connected to the electrical interface matrix layer. It effectively solves the shortcoming that the color of the OLED electronic display is dim in the working state, so that the hybrid LED illuminant of the present invention ensures the splendor of its color when it is used in the LED electronic display, and at the same time solves the problem of its high color in the working state of white light. Power consumption defect.

Other advantages, objects, and features of the present invention will appear in part from the description that follows, and in part will be appreciated by those skilled in the art from the study and practice of the invention.

Description of drawings

The accompanying drawings in the description are for the purpose of further explaining the present invention, and are not intended to limit the protection scope of the present invention.

FIG. 1 is a schematic diagram A of a ULED\OLED combined illuminant used in an LED electronic display according to the present invention.

FIG. 2 is a schematic diagram B of a ULED\OLED combined illuminant used in an LED electronic display according to the present invention.

FIG. 3 is a schematic diagram of the ULED interface in the ULED\OLED combined light-emitting body used in the LED electronic display of the present invention.

FIG. 4 is a schematic diagram of an OLED interface in a ULED\OLED combined light-emitting body used in an LED electronic display according to the present invention.

Detailed ways

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. Figures are not necessarily to scale; some features may be exaggerated or minimized to show details of specific 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 various application embodiments.

The present invention will be described in further detail below in conjunction with the specific embodiments, so that those skilled in the art can implement it with reference to the description, rather than limiting the scope of the present invention.

In this specification, the "ULED\OLED combined light-emitting body" is composed of micro ULED and OLED, wherein micro ULED is a miniature inorganic light emitting diode, and its barrier crystal layer is made of gallium nitride as a raw material, and the inner barrier of MOCVD OLED is an organic light-emitting diode, also known as organic electric laser display and organic light-emitting semiconductor. It was discovered in the laboratory by Chinese American professor Ching W. Tang in 1979, using polymer materials as semiconductor materials in light-emitting diodes. The ULED interface and the bottom surface and the top surface of the OLED interface described in the present invention are defined relative to the ULED and OLED barrier crystal directions.

Example 1

The ULED\OLED combined light-emitting body used in the LED electronic display of the present invention is shown in FIG. 1 and FIG. 2, and includes: a substrate 01; an epitaxial barrier crystal film layer 02, an epitaxial barrier crystal film layer 02 formed on the substrate 01; a pixel; : a large number of pixels formed on the epitaxial barrier crystal film layer, wherein each pixel includes a first sub-pixel 21, a second sub-pixel 22, and a third sub-pixel 23, the first sub-pixel corresponds to micro ULED11 and OLED31, and is composed of micro ULED1 and OLED31 is lit, the second sub-pixel 12 corresponds to micro ULED12 and OLED32, and is lit by micro ULED12 and OLED32, and the third sub-pixel corresponds to micro ULED13 and OLED33, and is lit by micro ULED13 and OLED33; LED controller: can selectively control the micro ULED is turned on and off; electrical interface matrix layer 03: directly electrically connected to each OLED. The micro ULED1 and OLED31 corresponding to the first sub-pixel 21 emit blue light in the working state; the second sub-pixel 22 corresponding to the micro ULED12 and OLED32 emits red light in the working state; the micro ULED13 and OLED33 corresponding to the third sub-pixel 23 are working. Green light is emitted in the state, and each pixel of the hybrid LED display can emit three light colors in its power-on working state.

Example 2

As shown in FIG. 3 , the ULED\OLED combined light-emitting body for display according to the present invention further includes a ULED interface on the surface of the epitaxial barrier crystal film layer, and each ULED interface includes a bottom surface 212 and a side surface 214, and the bottom surface of the ULED interface The formed first electrical interface is electrically connected to the LED controller, and the second electrical interface formed by the bottom surface 212 of the ULED interface is electrically connected to the reference voltage; wherein the ULED and the ULED are surface mounted, and each ULED mounted together It includes: a top surface 132, which overlaps with the bottom surface 212 of the corresponding ULED interface; a bottom surface; a first electrical plug 130 formed on the ULED top surface 132 is connected to the first electrical interface 216 of the corresponding ULED interface; The second electrical plug 504 on the top surface of the ULED is connected to the corresponding second electrical interface 502 of the ULED interface. Wherein the first electrical connector of each surface-mounted ULED is set to a circle with a first diameter as a diameter; wherein the circle formed by the second electrical connector of each surface-mounted ULED is a circle formed by the first electrical interface Peripheral; wherein the first electrical interface of each ULED interface forms an arc with a first diameter as the diameter, the arc is nearly circular, but similar to an open end on the circle; wherein the second electrical interface of each ULED interface is in the The notch of the first electrical interface extends like a mouth.

As shown in FIG. 4, the ULED\OLED combined light-emitting body may also include a plurality of OLED interfaces 204. Each OLED interface 204 includes a bottom surface 208, a side wall 214, and a first electrode 210. The first electrode 210 is formed on the bottom surface of the OLED interface. 206, and is 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 which have not been directly mentioned according to the various embodiments which are not troublesome from the various structures according to the embodiments of the present invention.

Although embodiments of the present invention have been disclosed above, they are not limited to the applications set forth in the specification and embodiments. It can be fully adapted to various fields suitable for the present invention. Additional modifications can readily be implemented by those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations herein shown and described, without departing from the general concept defined by the appended claims and the scope of equivalents.

Claims (4)

1. a ULED\OLED combined illuminant for display, is characterized in that, comprises: substrate; The LED light-emitting unit fixed on the substrate; The pixel points corresponding to the LED light-emitting unit are composed of LED light-emitting monomers: a large number of pixel points correspondingly formed on the epitaxial barrier crystal film layer, wherein each pixel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. Each pixel corresponds to a micro ULED and an OLED, and a sub-pixel is lit by a parallel connection of the micro ULED and the OLED, wherein the microULED emits white light, and the OLED emits one of the three primary colors; LED controller: can selectively control the on and off of micro ULED; Electrical interface matrix layer: directly electrically connected to each OLED; The electrical connection interface between the micro ULED corresponding to the sub-pixel in the pixel and the circuit is a set of vertical structure components, and the micro ULED is electrically connected to the outside world in the form of surface-mounted packaging through the set of vertical structure components; The surface of the epitaxial barrier crystal film layer further includes a large number of ULED interfaces, each ULED interface includes a bottom surface and a side surface, 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 of the ULED interface The electrical interface is electrically connected to the reference voltage; the ULED and the ULED are surface mounted, and each ULED mounted together includes: a top surface, which overlaps with the bottom surface of the corresponding ULED interface; a bottom surface; a ULED formed on the ULED The first electrical plug on the top surface is connected to the first electrical interface of the corresponding ULED interface; a second electrical plug formed on the top surface of the ULED is connected to the second electrical interface of the corresponding ULED interface; Wherein the first electrical connector of each surface-mounted ULED is set to a circle with a first diameter as a diameter; wherein the circle formed by the second electrical connector of each surface-mounted ULED is a circle formed by the first electrical interface Peripheral; wherein the first electrical interface of each ULED interface forms an arc with the first diameter as the diameter, the arc is nearly circular, but similar to an open end on the circle; wherein the second electrical interface of each ULED interface is in the The gap of the first electrical interface extends like a mouth; The surface of the epitaxial barrier crystal film layer further includes a plurality of OLED interfaces, and each OLED interface includes a bottom surface, a side wall, and a first electrode. The first electrode is formed on the bottom surface of the OLED interface and is electrically connected to the LED controller. The OLED The first electrode and the second electrode of the interface are electrically connected to the electrical interface matrix layer. 2. The ULED\OLED combined light-emitting body for display according to claim 1, wherein the surface of the epitaxial barrier crystal film layer further comprises a large number of concave interfaces, and the interface concave places are used for placing LEDs, and the LEDs are used as the LEDs. Filler for recessed interfaces. 3. The ULED\OLED combined light-emitting body for display according to 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 corresponds to the micro ULED The OLED emits red light; 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 combined light-emitting body for display according to any one of claims 1-2, wherein the micro ULED corresponding to each sub-pixel in the pixel and the micro ULED used as the surface of the epitaxial barrier crystal film layer The epitaxial layer of the LED filled with the concave interface is selected from gallium nitride based compounds.

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