Source: https://patents.google.com/patent/US9606763B2/en
Timestamp: 2020-04-05 21:10:43
Document Index: 173448604

Matched Legal Cases: ['arts 200', 'arts 200', 'arts 200', 'arts 200', 'arts 200', 'arts 200', 'arts 200', 'arts 200', 'arts 200', 'arts 200', 'arts 200', 'arts 200', 'arts 200', 'arts 200']

US9606763B2 - Folding electronic device - Google Patents
US9606763B2
US9606763B2 US14/562,562 US201414562562A US9606763B2 US 9606763 B2 US9606763 B2 US 9606763B2 US 201414562562 A US201414562562 A US 201414562562A US 9606763 B2 US9606763 B2 US 9606763B2
US20150160698A1 (en
238000005452 bending Methods 0 claims abstract description 59
X-Y coordinates are defined for the smartphone 100 while setting the position P at the lower left corner of the flexible display 300 as the origin. Z-axis is defined downward (FIG. 3). The units 101 a and 101 b include mutually independent chassis and electronic devices contained in their chassis. The units 101 a and 101 b have outer side faces 109 a and 109 b, inner side faces 111 a and 111 b, and upper side faces 108 a and 108 b and lower side faces 110 a and 110 b, respectively, each of which defines the outline of the outer shape partially. At spaces surrounded with the outer side faces 109 a and 109 b, the upper side faces 108 a and 108 b, the lower side faces 110 a and 110 b and three side edges of the flexible displays 200 and 300, peripheral frames 107 a and 107 b are disposed.
FIG. 2A is a cross-sectional view in the open state, FIG. 2B is a cross-sectional view in the close state and FIG. 2C is a side view to illustrate the inner side faces 111 a and 111 b in the close state. The outline of the units 101 a and 101 b is defined by surfaces of base plates 115 a and 115 b and laminates 113 a and 113 b, respectively. Although not illustrated in FIG. 2, spaces defined by the base, plates 115 a and 115 b and the laminates 113 a and 113 b are to accommodate electronic devices therein, such as a circuit board with a semiconductor and a circuit element mounted thereon, a battery unit, and a power supply circuit (FIG. 5).
The flexible displays 200 and 300 may display an image in black and white or in color. In the case of color display, a light-emitting element emitting colored light may be used, or a light-emitting element emitting white light may be combined with a color filter. Although the flexible displays 200 and 300 may be driven by a passive matrix method, the following describes the case of an active matrix method as an example. The flexible displays 200 and 300 are stacked to be along the shapes of the top plates 201 and 301 and the touch panels 203 and 303, and so have the shapes defined in accordance with the shapes of them. The flexible displays 200 and 300 include primary flat parts 200 a and 300 a, bending parts 200 b and 300 b and secondary flat parts 200 c and 300 c.
FIG. 4 illustrates a side view of the flexible displays 200 and 300 that are assembled into the top plates 201 and 301 and a plan view when they are developed on a flat plane. When the flexible displays 200 and 300 are assembled into the top plates 201 and 301, the primary flat parts 200 a and 300 a and the secondary flat parts 200 c and 300 c keep the flat faces, and the bending parts 200 b and 300 b bend in the Z-axis direction along the X-axis direction. Since the bending of the flexible displays 200 and 300 in the Z-direction does not occur in the Y-axis direction, characteristic shapes of the flexible displays 200 and 300 that are assembled into the top plates 201 and 301 can be described in the X coordinates.
A signal control circuit 251 receives a RGB data signal, a synchronization signal, and a clock signal from the GPU 401 to generate a control signal to drive the signal-line driving circuit 255 and the scanning-line driving circuit 256, and sends the RGB data signal to the signal-line driving circuit 255 at a predetermined timing. A power supply circuit 253 supplies power to the circuits included in the flexible display 200, and supplies current to let the organic EL elements emit light to the signal-line driving circuit 255. The signal control circuit 251, the signal-line driving circuit 255, the scanning-line driving circuit 256, the power supply circuit 253 and the like are disposed below the peripheral frames 107 a and 107 b illustrated in FIG. 1.
FIG. 7 is a block diagram describing a display system 450 implemented in the smartphone 100. The GPU 401 executes the device driver stored in the SSD 405 to configure a rendering unit 451, a data correction unit 453, an image data expansion unit 455 and an output unit 457. The rendering, unit 451 processes a rendering command received from the system 400, and creates image data directly corresponding to an image to be displayed at the flexible displays 200 and 300.
The data correction unit 453 corrects the image data of the effective display regions 200 e and 300 e of the image data received from the rendering unit 451 to be image data of the number of pixels of the bending parts 200 b and 300 b. The data correction unit 453 inserts pixels for correction at a predetermined position in the X-axis direction into the image data of the effective display regions 200 e and 300 e. The pixels for correction can be a linear pixel pattern that is long in the Y-axis direction having the same image data set as the image data of pixels adjacent to them in the X-axis direction at the insertion position. The pixels of the bending parts 200 b and 300 b observed by the primary front viewing decreases in area in the X-axis direction with increasing proximity to the secondary flat parts 200 c and 300 c. As the area of the pixels decreases, the data correction unit 453 increases the number of lines of the stripe-shaped pixel pattern for correction to be inserted with increasing proximity of the pixels from the primary flat parts 200 a and 300 a to the secondary flat parts 200 c and 300 c.
At a position where the flexible displays 200 and 300 are adjacent to each other, image data corrected at the bending parts 200 b and 300 b also contributes to an image for the primary front viewing. That is, the range of display loss of the image can be reduced close to the physical gap G as compared with the case of FIG. 10. Further since the image data to be displayed at the bending parts 200 b and 300 b are corrected, an image displayed can have a quality that is close to the image that the primary flat parts 200 a and 300 a display.
a first panel having a first flexible display that includes a first top plate and a first pixel matrix, wherein said first flexible display includes a first primary flat part and a first bending part, wherein said first pixel matrix includes a plurality of light-emitting elements located at equal distance from each other, wherein a curvature of said first bending part of said first flexible display is configured to be adjusted to allow light beams emitted from said light-emitting elements located at said first bending part to be in a direction parallel to light beams emitted from said light-emitting elements located at said first flat part;
a second panel having a second flexible display that includes a second top plate and a second pixel matrix, wherein said second flexible display includes a second primary flat part and a second bending part, wherein said second pixel matrix includes a plurality of light-emitting elements located at equal distance from each other, wherein a curvature of said second bending part of said second flexible display is configured to be adjusted to allow light beams emitted from said light-emitting elements located at said second bending part to be a direction parallel to light beams emitted from said light-emitting elements located at said second flat part;
an image data generation unit within at least one of said first and second panels to generate image data on display regions of said first pixel matrix and said second pixel matrix.
2. The folding electronic device of claim 1, wherein said light beams emitted from said light-emitting elements located at said first bending part is in a direction parallel to light beams emitted from said light-emitting elements located at said first flat part after passing through said first top plate.
3. The folding electronic device of claim 1, wherein said light beams emitted from said light-emitting elements located at said second bending part is in a direction parallel to light beams emitted from said light-emitting elements located at said second flat part after passing through said second top plate.
4. The folding electronic device of claim 1, wherein said first top plate is made of glass having a refractive index of approximately 1.5.
5. The folding electronic device of claim 4, wherein said second top plate is made of glass having a refractive index of approximately 1.5.
6. The folding electronic device of claim 1, wherein said first top plate is made of transparent acrylic resin having a refractive index of approximately 1.5.
7. The folding electronic device of claim 6, wherein said second top plate is made of transparent acrylic resin having a refractive index of approximately 1.5.
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