STRETCHABLE DISPLAY APPARATUS AND DISPLAY CONTROL METHOD AND APPARATUS OF THE STRETCHABLE DISPLAY APPARATUS

• US 20160124536A1
• Filed: 06/04/2015
• Published: 05/05/2016
• Est. Priority Date: 11/03/2014
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Hyun, Changho, Park, Cheolwoo
• Granted Patent: US 9,804,699 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1652 the display being flexible, e.g. mimicking a sheet of paper, or rollable
• CPC Class Codes: G06F 2203/04102 Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0487 using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G09G 2310/0205 Simultaneous scanning of several lines in flat panels
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2380/02 Flexible displays
• CPC Class Codes: G09G 3/00 Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
• CPC Class Codes: G09G 3/035 for flexible display surfaces
• CPC Class Codes: G09G 3/20 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

Abstract

A display control method of a stretchable display apparatus includes determining a degree of expansion of the display apparatus, and controlling a display mode of the display apparatus to be a first mode or a second mode based on the degree of expansion. A first resolution is embodied in the first mode by transmitting a data signal to each of pixel groups formed by classifying a plurality of pixels into the pixel groups. A second resolution is embodied in the second mode by transmitting a data signal to each of the plurality of pixels.

Claims

1. A display control method of a stretchable display apparatus, the display control method comprising:

determining a degree of expansion of the display apparatus; and

controlling a display mode of the display apparatus to be a first mode or a second mode based on the degree of expansion,

wherein

a first resolution is embodied in the first mode by transmitting a data signal to each of pixel groups formed by classifying a plurality of pixels into the pixel groups, and

a second resolution is embodied in the second mode by transmitting a data signal to each of the plurality of pixels.

2. The display control method of claim 1, wherein

the determining of the degree of expansion comprises determining the degree of expansion in a first direction and in a second direction perpendicular to the first direction, and

the controlling of the display mode comprises classifying the plurality of pixels into the pixel groups based on the degree of expansion in each direction.

3. The display control method of claim 2, wherein

the plurality of pixels are arranged in row and column directions, and

the first direction is the row direction, and the second direction is the column direction.

4. The display control method of claim 1, wherein in the first mode, only some of the pixels included in each of the pixel groups emit light.

5. The display control method of claim 1, wherein in the controlling of the display mode to be the first mode,

the display mode is set to the first mode when a length in a first direction of the display apparatus shortens to less than a first criterion,

the pixels continuously arranged in the first direction are classified into the pixel groups, and

a data signal is transmitted to each of the pixel groups.

6. The display control method of claim 5,

wherein in the controlling of the display mode,

the second mode is selected when the length in the first direction and a length in a second direction perpendicular to the first direction are more than corresponding second criteria respectively pre-set for the first and second directions, and

the first mode is selected when the length in the first direction or the length in the second direction is less than corresponding first criteria respectively pre-set for the first and second directions, and

wherein when the first mode is selected, the first resolution is a resolution with respect to a corresponding one of the first direction or the second direction along which a corresponding one of the lengths shortens to less than the respective first criterion, and is less than a maximum resolution.

7. The display control method of claim 6, wherein respective ones of the first criteria and the second criteria are substantially the same.

8. The display control method of claim 6, wherein respective ones of the first criteria are less than respective ones of the second criteria.

9. The display control method of claim 1, further comprising outputting image signals according to the display mode.

10. A display control apparatus of a stretchable display apparatus, the display control apparatus comprising:

an expansion level determiner configured to determine a degree of expansion of the display apparatus; and

a display mode controller configured to control a display mode of the display apparatus based on the degree of expansion,

wherein the display mode comprises;

a first mode in which a first resolution is embodied by transmitting a data signal to each of pixel groups formed by classifying a plurality of pixels into the pixel groups; and

a second mode in which a second resolution is embodied by transmitting a data signal to each of the plurality of pixels.

11. The display control apparatus of claim 10, further comprising an image signal output unit configured to output image signals according to the display mode.

12. A stretchable display apparatus comprising:

a display panel stretchable in at least one direction;

a sensing unit configured to measure a degree of expansion of the display panel; and

a controller configured to control a display mode of the display apparatus depending on the degree of expansion,

wherein the controller comprises;

an expansion level determiner configured to determine the degree of expansion of the display panel; and

a display mode controller configured to control a display mode of the display apparatus depending on the degree of expansion, and

wherein the display mode comprises;

a first mode in which a first resolution is embodied by transmitting a data signal to each of pixel groups formed by classifying a plurality of pixels into the pixel groups; and

a second mode in which a second resolution is embodied by respectively transmitting a data signal to each of the plurality of pixels.

13. The stretchable display apparatus of claim 12, wherein the controller further comprises an image signal output unit configured to output image signals according to the display mode.