CN113888965B - stretch display - Google Patents

Abstract

A stretched display includes multiple island areas and multiple light sources. A plurality of light sources are correspondingly arranged above the plurality of island areas. When the stretched display operates in the first state, adjacent first island areas and second island areas of the plurality of island areas are parallel to a specific direction, and adjacent ones of the plurality of light sources are arranged on the first The first light source and the second light source above the island area and the second island area respectively have a specific angle with the specific direction in opposite first rotation directions and second rotation directions. When the stretched display is operating in the second state, the first island area and the second island area have a specific angle with the specific direction in the second rotation direction and the first rotation direction respectively, and the first light source and the second The light source is parallel to a specific direction.

Description

stretch display

Technical field

The present invention relates to displays, and in particular to a stretch display.

Background technique

With the continuous evolution of display technology, the industry has developed a stretchable display (Stretchable display), which can be deformed by stretching and can be applied to wearable devices, Internet of Things devices, automobiles, and artificial intelligence equipment.

As shown in FIGS. 1A and 1B , a traditional stretch display 1 usually includes an island 10 and a tensile area 12 , and its deformation ability depends largely on the design of the tensile area 12 . However, although this design can effectively reduce wiring stress, the pixel density (Pixels Per Inch, PPI) of the panel is difficult to increase due to the area occupied by the stretching area 12 through the winding method. This needs to be further solved.

Contents of the invention

In view of this, the present invention proposes a stretch display to effectively solve the above problems encountered in the prior art.

A specific embodiment according to the present invention is a stretch display. In this embodiment, the stretched display includes multiple island regions and multiple luminous sources. A plurality of light sources are correspondingly arranged above the plurality of island areas. When the stretched display operates in the first state, adjacent first island areas and second island areas of the plurality of island areas are parallel to a specific direction, and adjacent ones of the plurality of light sources are arranged on the first The first light source and the second light source above the island area and the second island area have a specific angle with the specific direction in a first rotation direction and a second rotation direction that are opposite to each other. When the stretched display is operating in the second state, the first island area and the second island area have a specific angle with the specific direction in the second rotation direction and the first rotation direction respectively, and the first light source and the second The light source is parallel to a specific direction.

In one embodiment, the first state is an unstretched state and the second state is a stretched state.

In one embodiment, the first rotation direction is clockwise and the second rotation direction is counterclockwise, or the first rotation direction is counterclockwise and the second rotation direction is clockwise.

In one embodiment, the specific direction is a horizontal direction or a vertical direction.

In one embodiment, the plurality of light-emitting sources are micro-light emitting diodes (uLEDs).

In one embodiment, one or more groups of red, green, and blue micro-luminescent diodes are disposed above the same island area among the plurality of island areas.

In one embodiment, the micro-light-emitting diodes provided above the same island area among the plurality of island areas do not need to be in pairs and a spare micro-light-emitting diode may be provided.

In one embodiment, the plurality of light sources are organic light-emitting diodes (OLEDs).

In one embodiment, single-color or red, green, and blue organic light-emitting diodes are disposed above the same island area among the plurality of island areas.

In one embodiment, the red, green, and blue organic light-emitting diodes disposed above the same island area among the plurality of island areas are designed in different shapes.

In one embodiment, in the second state, blue organic light-emitting diodes are arranged in staggered positions above different island regions to improve blue image quality.

Compared with the prior art, the stretched display according to the present invention can be deformed by stretching, and it only needs to correspondingly rotate its light source and/or island during the conversion process between the unstretched state and the stretched state. This can be achieved without setting up a stretching area that occupies a large area, so it can effectively increase the pixel density (PPI) of the display panel. In addition, the stretchable display of the present invention can use micro-light emitting diodes (uLED) or organic light-emitting diodes (OLED) as the light source according to actual needs, and can change the design of the light source arranged above the same island area to optimize its Demonstrate performance and increase design flexibility.

The advantages and concepts of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

Description of the drawings

The description of the drawings in the specification of the present invention is as follows:

1A and 1B show schematic diagrams of a conventional stretch display.

2A and 2B respectively show schematic diagrams of a plurality of island areas in the stretch display of the present invention operating in a first state (unstretched state) and a second state (stretched state).

FIG. 3 shows a schematic diagram of the stretched display of the present invention including multiple island areas and multiple light sources.

Figures 4 and 5 respectively show that the multiple island areas and the multiple light sources in the stretched display of the present invention are stretched and converted from the first state (unstretched state) to the second state (stretched state). Schematic diagrams of different embodiments.

6A and 6B respectively show a schematic diagram in which one or two groups of micro-light emitting diodes (uLEDs) can be disposed above the same island area in the stretched display of the present invention as its light source.

Figure 7 shows how multiple island areas and multiple groups of micro-light emitting diodes arranged above them in the stretched display of the present invention transition from the first state (unstretched state) to the second state (stretched state). Schematic diagram.

8A and 8B respectively show schematic diagrams of organic light-emitting diodes including single-color and multi-color organic light-emitting diode units arranged above the island area in a stretched display according to the present invention.

8C shows a schematic diagram of the designs of red, green, and blue organic light-emitting diode units with different shapes included in the organic light-emitting diodes arranged above the island area in the stretched display of the present invention.

FIG. 9 shows a plurality of island regions and a plurality of organic light-emitting diodes arranged above them in the stretched display of the present invention after they are converted from the first state (unstretched state) to the second state (stretched state). A schematic diagram showing that blue organic light-emitting diode units can be arranged in staggered positions above different island areas to improve image quality.

Explanation of reference symbols:

1...Stretched display

10...Island area

12...Stretching zone

IS1～IS9...island area

DR1...first direction

DR2...Second direction

ST1...first state

ST2...Second state

CW...clockwise

CCW...counterclockwise

K...angle

3...Stretched display

LU1～LU9...light source

4...Stretched display

5...Stretched display

ML1～ML4...Micro light emitting diodes

R...Red

G...green

B...blue

7...Stretched display

OL1～OL4...organic light-emitting diodes

9...Stretched display

Detailed ways

The following will clearly illustrate the concept of the present disclosure with the accompanying drawings and detailed descriptions. After understanding the embodiments of the present disclosure, any person skilled in the art can make changes and modifications based on the technology revealed in the present disclosure. without departing from the spirit and scope of this disclosure.

The terms “first”, “second”, etc. used in this article do not specifically refer to the order or order, nor are they used to limit the present invention. They are only used to distinguish elements or operations described with the same technical terms. .

As used herein, “electrical coupling” may refer to two or more components being in direct physical or electrical contact with each other, or being in indirect physical or electrical contact with each other, and “electrical coupling” may also refer to Two or more components operate or act on each other.

The words "includes", "includes", "has", "contains", etc. used in this article are all open terms, which mean including but not limited to.

As used herein, "and/or" includes any and all combinations of the stated things.

Regarding the directional terms used in this article, such as: up, down, left, right, front or back, etc., they only refer to the directions of the attached drawings. Accordingly, the directional terms used are intended to illustrate and not to limit the disclosure.

The terms "approximately", "approximately", etc. used in this article are used to modify any quantity or error that may vary slightly, but such slight variations or errors will not change its essence.

Unless otherwise noted, the terms used in this article generally have their ordinary meanings as used in the field, in this disclosure, and in the specific context. Certain terms used to describe the disclosure are discussed below or elsewhere in this specification to provide those skilled in the art with additional guidance in describing the disclosure.

A specific embodiment according to the present invention is a stretch display. In this embodiment, the stretchable display can be deformed by stretching, so it can operate in an unstretched state and a stretched state and can switch between the two states. The stretched display may be a micro-light-emitting diode (uLED) display or an organic light-emitting diode (OLED) display, and includes a plurality of island regions and a plurality of corresponding light-emitting sources disposed above them, but is not limited thereto.

Please refer to Figure 2A and Figure 2B. 2A and 2B respectively show schematic diagrams of a plurality of island areas in a stretched display operating in a first state (unstretched state) and a second state (stretched state).

As shown in Figure 2A, it is assumed that the stretched display includes nine island areas IS1~IS9 and the nine island areas IS1~IS9 are arranged in a (3*3) matrix, that is, the island areas IS1~IS3 and the island areas IS4~IS6 , the island areas IS7~IS9 are respectively arranged parallel to the first direction (horizontal direction) DR1, and the island areas IS1, IS4 and IS7, the island areas IS2, IS5 and IS8, the island areas IS3, IS6 and IS9 are respectively parallel to the second direction (vertical direction). direction) DR2 arrangement, but not limited to this.

When the stretched display operates in the first state (unstretched state) ST1, all island areas IS1 to IS9 in the stretched display are parallel to the first direction (horizontal direction) DR1 and the second direction (vertical direction) at the same time. )DR2.

When the stretched display is stretched and converted from the first state (unstretched state) ST1 to the second state (stretched state) ST2, any two of the island areas IS1 to IS9 in the stretched display island areas adjacent to each other along the first direction (horizontal direction) DR1 or the second direction (vertical direction) DR2 (for example, island areas IS1 and IS2 adjacent to each other along the horizontal direction or island areas IS1 adjacent to each other along the vertical direction) and IS4) will rotate by the same included angle K in the opposite first rotation direction (for example, clockwise direction) CW and the second rotation direction (for example, counterclockwise direction) CCW.

In other words, when the stretch display is stretched and converted from the first state (unstretched state) ST1 to the second state (stretched state) ST2, the island areas IS1, IS3, IS5, IS7, and IS9 will be The first rotation direction (clockwise direction) CW rotates by an angle K, and the island areas IS2, IS4, IS6, and IS8 will rotate in the second rotation direction (counterclockwise direction) CCW by an angle K.

Therefore, if we look at the island areas IS1 and IS2, in the second state (stretched state) ST2, the island areas IS1 and IS2 will rotate in the opposite first rotation direction (for example, clockwise direction) CW and the second rotation direction respectively. (For example, counterclockwise direction) CCW has the same included angle K with the first direction (horizontal direction) DR1 and the second direction (vertical direction) DR2.

Similarly, if we look at the island areas IS1 and IS4, in the second state (stretched state) ST2, the island areas IS1 and IS2 will rotate in opposite first rotation directions (for example, clockwise direction) CW and second rotation respectively. The direction (for example, counterclockwise direction) CCW has the same included angle K with the first direction (horizontal direction) DR1 and the second direction (vertical direction) DR2.

It should be noted that the first rotation direction and the second rotation direction can also be counterclockwise and clockwise, and the size of the angle K can be adjusted according to actual needs, and there is no specific limit.

Referring to FIG. 3 , the stretched display 3 includes island areas IS1 to IS9 and light sources LU1 to LU9. The island areas IS1 to IS9 and the light sources LU1 to LU9 are all arranged in a (3*3) matrix, but are not limited to this. The island areas IS1~IS3, the island areas IS4~IS6, and the island areas IS7~IS9 are arranged along the first direction (horizontal direction) DR1 respectively, and the island areas IS1, IS4 and IS7, the island areas IS2, IS5 and IS8, and the island areas IS3 and IS6 and IS9 are respectively arranged along the second direction (vertical direction) DR2. The light sources LU1 to LU3, the light sources LU4 to LU6, and the light sources LU7 to LU9 are respectively arranged along the first direction (horizontal direction) DR1 and the light sources LU1, LU4 and LU7, the light sources LU2, LU5 and LU8, the light sources LU3 and LU6 and LU9 are respectively arranged along the second direction (vertical direction) DR2.

The plurality of light sources LU1 to LU9 are correspondingly arranged above the plurality of island regions IS1 to IS9. In other words, the light-emitting source LU1 is correspondingly arranged above the island area IS1, the light-emitting source LU2 is correspondingly arranged above the island area IS2, the light-emitting source LU3 is correspondingly arranged above the island area IS3, and so on.

Please refer to Figure 4. FIG. 4 shows a schematic diagram of a plurality of island areas and a plurality of light sources in a stretched display transitioning from a first state (unstretched state) to a second state (stretched state).

As shown in FIG. 4 , the stretch display 4 includes four island areas IS1 to IS4 and four light sources LU1 to LU4, and the light sources LU1 to LU4 are correspondingly arranged above the island areas IS1 to IS4. In other words, the light source LU1 is disposed above the island IS1, the light source LU2 is disposed above the island IS2, the light source LU3 is disposed above the island IS3, and the light source LU4 is disposed above the island IS4.

When the stretched display 4 operates in the first state (unstretched state) ST1, the plurality of island areas IS1 to IS4 are arranged parallel to the first direction (horizontal direction) DR1 and the second direction (vertical direction) DR2, and The light sources LU1 to LU4 located above the island areas IS1 to IS4 are aligned with the first direction (horizontal direction) DR1 and the second direction (vertical direction) DR2 in counterclockwise, clockwise, clockwise and counterclockwise directions respectively. have the same angle K between them.

When the stretch display 4 is stretched and transitions from the first state (unstretched state) ST1 to the second state (stretched state) ST2, the island areas IS1~IS4 and the light sources LU1~ located above them LU4 rotates by the same included angle K in clockwise, counterclockwise, counterclockwise and clockwise directions respectively.

Therefore, in the second state (stretched state) ST2, the light sources LU1 to LU4 will be arranged parallel to the first direction (horizontal direction) DR1 and the second direction (vertical direction) DR2, and the island areas IS1 to IS4 will be arranged in parallel with each other. The clockwise direction, the counterclockwise direction, the counterclockwise direction and the clockwise direction have the same included angle K with the first direction (horizontal direction) DR1 and the second direction (vertical direction) DR2.

In other words, during the transition from the first state (unstretched state) ST1 to the second state (stretched state) ST2, if the island region IS1 and the light source LU1 also rotate clockwise by the same angle K, Then the island IS2 and the light source LU2 arranged adjacent to the island IS1 and the light source LU1 along the first direction (horizontal direction) DR1 will rotate in the opposite counterclockwise direction by the same angle K, and along the second direction (vertical direction) direction) DR2, the island IS3 and the light source LU3 arranged adjacent to the island IS1 and the light source LU1 will also rotate in the opposite counterclockwise direction by the same included angle K. Because the island area IS4 and the light source LU4 are arranged adjacent to the island area IS3 and the light source LU3 along the first direction (horizontal direction) DR1 and adjacent to the island area IS2 and the light source LU2 along the second direction (vertical direction) DR2 , therefore, the island IS4 and the light source LU4 will rotate clockwise by the same included angle K.

As shown in FIG. 5 , in another embodiment, when the stretched display 5 operates in the first state (unstretched state) ST1 , the island areas IS1 to IS4 are parallel to the first direction (horizontal direction) DR1 and the third direction. The two directions (vertical direction) DR2 are arranged, and the light sources LU1 ~ LU4 located above the island areas IS1 ~ IS4 are aligned with the first direction (horizontal direction) DR1 in clockwise, counterclockwise, counterclockwise and clockwise directions respectively. There is an included angle K between the second direction (vertical direction) DR2.

When the stretch display 5 is stretched and transitions from the first state (unstretched state) ST1 to the second state (stretched state) ST2, the island areas IS1~IS4 and the light sources LU1~ located above them LU4 all rotate the same included angle K in the counterclockwise direction, clockwise direction, clockwise direction and counterclockwise direction respectively.

Therefore, in the second state (stretched state) ST2, the light sources LU1 to LU4 will be arranged parallel to the first direction (horizontal direction) DR1 and the second direction (vertical direction) DR2, and the island areas IS1 to IS4 will be arranged in parallel with each other. The counterclockwise direction, the clockwise direction, the clockwise direction and the counterclockwise direction have the same included angle K with the first direction (horizontal direction) DR1 and the second direction (vertical direction) DR2.

In other words, during the transition from the first state (unstretched state) ST1 to the second state (stretched state) ST2, if the island region IS1 and the light source LU1 also rotate counterclockwise by the angle K, then along The island IS2 and the light source LU2 arranged adjacent to the island IS1 and the light source LU1 in the first direction (horizontal direction) DR1 will rotate in the opposite clockwise direction by the same angle K, and in the second direction (vertical direction) The island IS3 and the light source LU3 arranged adjacent to the island IS1 and the light source LU1 of the DR2 will also rotate in the opposite clockwise direction by the same included angle K. Because the island area IS4 and the light source LU4 are arranged adjacent to the island area IS3 and the light source LU3 along the first direction (horizontal direction) DR1 and adjacent to the island area IS2 and the light source LU2 along the second direction (vertical direction) DR2 , therefore, the island IS4 and the light source LU4 will rotate counterclockwise by the same included angle K.

In one embodiment, the stretched display can use micro-luminescent diodes (uLEDs) as its light source, and one or more groups of red (R) can be set above the same island area in the stretched display according to actual needs. , green (G), blue (B) micro-luminescent diodes.

For example, as shown in FIGS. 6A and 6B , a group of red R, green G, and blue B micro-luminescent diodes ML1 or two groups of red micro-light emitting diodes ML1 are arranged above the same island area IS1 in the stretched display according to actual needs. R, green G, and blue B micro-luminescent diodes ML1 to ML2, but are not limited to this. In addition, the micro-light-emitting diodes provided above the same island area IS1 in the stretched display do not need to be in pairs, and additional spare micro-light-emitting diodes can be provided, but it is not limited to this.

As shown in Figure 7, if a group of red R, green G, and blue B micro-luminescent diodes ML1-ML4 are respectively provided above the island areas IS1-IS4 in the stretch display 7, when the stretch display 7 operates in the first In the first state (unstretched state) ST1, the island areas IS1~IS4 are parallel to the horizontal and vertical directions, and the groups of micro-luminescent diodes ML1~ML4 arranged above the island areas IS1~IS4 are arranged in counterclockwise and clockwise directions respectively. The clockwise and counterclockwise directions have the same angle K as the horizontal and vertical directions.

When the stretch display 7 is stretched and transitions from the first state (unstretched state) ST1 to the second state (stretched state) ST2, the island areas IS1 to IS4 are disposed above the island areas IS1 to IS4 Each group of micro-luminescent diodes ML1 to ML4 rotates at the same included angle K in a clockwise direction, a counterclockwise direction, a counterclockwise direction and a clockwise direction respectively.

Therefore, in the second state (stretched state) ST2, each group of micro-luminescent diodes ML1 to ML4 are parallel to the horizontal and vertical directions, and the island areas IS1 to IS4 are arranged in clockwise, counterclockwise, counterclockwise and clockwise directions respectively. The clockwise direction has the same angle K with the horizontal and vertical directions.

In another embodiment, the stretched display may use organic light-emitting diodes (OLEDs) as its light source, and the OLEDs disposed above the same island area may include single-color or multi-color OLED units. The plurality of organic light emitting diode units in the organic light emitting diode may be of the same shape or designs of different shapes.

For example, as shown in FIG. 8A , the organic light-emitting diode OL1 disposed above the island region IS1 includes a single-color (for example, red R) organic light-emitting diode unit; as shown in FIG. 8B , the organic light-emitting diode OL1 disposed above the island region IS1 The diode OL1 includes red R, green G, and blue B organic light-emitting diode units, and the red R, green G, and blue B organic light-emitting diode units are all designed in the same shape; as shown in Figure 8C, it is arranged in a stretched type The organic light-emitting diode OL1 above the island IS1 in the display includes red R, green G, and blue B organic light-emitting diode units, and the blue B organic light-emitting diode unit and the red R, green G organic light-emitting diode unit have different shapes. the design of.

As shown in Figure 9, organic light-emitting diodes OL1-OL4 are respectively provided above the island areas IS1-IS4 in the stretched display 9, and the organic light-emitting diodes OL1-OL4 respectively include red R, green G, and blue B organic light emitting diodes. The blue B organic light-emitting diode unit and the red R and green G organic light-emitting diode units are designed in different shapes.

When the stretched display 9 operates in the first state (unstretched state) ST1, the island areas IS1-IS4 are parallel to the horizontal and vertical directions, and the organic light-emitting diodes OL1-OL4 disposed above the island areas IS1-IS4 The counterclockwise, clockwise, clockwise and counterclockwise directions have the same included angle K with the horizontal and vertical directions respectively.

When the stretch display 9 is stretched and transitions from the first state (unstretched state) ST1 to the second state (stretched state) ST2, the island areas IS1 to IS4 are disposed above the island areas IS1 to IS4 Each of the organic light-emitting diodes OL1 to OL4 rotates at the same included angle K in a clockwise direction, a counterclockwise direction, a counterclockwise direction and a clockwise direction respectively.

Therefore, in the second state (stretched state) ST2, the organic light-emitting diodes OL1 to OL4 are parallel to the horizontal direction and the vertical direction, and the island regions IS1 to IS4 are arranged in the clockwise direction, the counterclockwise direction, the counterclockwise direction and the clockwise direction respectively. The direction has the same angle K between the horizontal direction and the vertical direction.

It should be noted that in the second state (stretched state) ST2, since the stretched display 9 is stretched and deformed, its pixel density is reduced, and the organic light-emitting diodes OL1~ disposed above the island regions IS1~IS4 The blue B organic light-emitting diode units in OL4 are all located in the same position (for example, on the left). When viewed macroscopically, vertical blue lines may appear in the screen, resulting in poor image quality.

Therefore, in order to improve the image quality, as shown in FIG. 9 , the positions of the blue B organic light emitting diode units in different organic light emitting diodes OL1 to OL4 can be staggered, for example, the blue B organic light emitting diode units in the organic light emitting diodes OL1 and OL4 The organic light-emitting diode unit of the blue B of the organic light-emitting diodes OL2 and OL3 is arranged on the right side, so that no vertical blue line will be formed in the screen when viewed macroscopically. To improve image quality, but not limited to this.

Compared with the prior art, the stretched display according to the present invention can be deformed by stretching, and it only needs to correspondingly rotate its light source and/or island during the conversion process between the unstretched state and the stretched state. This can be achieved without setting up a stretching area that occupies a large area, so it can effectively increase the pixel density (PPI) of the display panel. In addition, the stretchable display of the present invention can use micro-light emitting diodes (uLED) or organic light-emitting diodes (OLED) as the light source according to actual needs, and can change the design of the light source arranged above the same island area to optimize its Demonstrate performance and increase design flexibility.

Although the present invention has been disclosed above through embodiments, they are not intended to limit the present invention. Any person skilled in the art can make various changes and modifications without departing from the concept and scope of the present invention. Therefore, the present invention is The scope of protection shall be determined by the claims.

Claims (9)

1. A stretch display comprising:

a plurality of islands; and

the light emitting sources are correspondingly arranged above the island areas;

when the stretching display operates in a first state, a first island area and a second island area which are adjacently arranged in the island areas are parallel to a specific direction, and a first light emitting source and a second light emitting source which are adjacently arranged above the first island area and the second island area respectively have a specific included angle with the specific direction in a first rotating direction and a second rotating direction which are opposite to each other; when the stretching display operates in a second state, the first island region and the second island region respectively have the specific included angle between the second rotation direction and the specific direction, the first light-emitting source and the second light-emitting source are parallel to the specific direction,

wherein the first state is an unstretched state and the second state is a stretched state,

wherein the specific direction is a horizontal direction or a vertical direction.

2. The stretch display of claim 1, wherein the first rotation direction is clockwise and the second rotation direction is counter-clockwise, or the first rotation direction is counter-clockwise and the second rotation direction is clockwise.

3. The stretch display of claim 1, wherein the plurality of light-emitting sources are micro-leds.

4. A stretch display according to claim 3, wherein one or more sets of red, green and blue micro-leds are disposed over the same one of the plurality of islands.

5. The display of claim 3, wherein the micro-leds disposed over the same island of the plurality of islands are not paired and spare micro-leds can be disposed.

6. The stretched-type display of claim 1 wherein the plurality of light-emitting sources are organic light-emitting diodes.

7. The stretched-type display of claim 6, wherein a single color or red, green, blue organic light emitting diode is disposed over the same island of the plurality of islands.

8. The stretched-type display of claim 6, wherein the red, green, blue organic light emitting diodes disposed over the same island of the plurality of islands are differently shaped designs.

9. The display of claim 8, wherein in the second state, blue organic light emitting diodes are disposed at staggered positions over different islands to improve blue image quality.