DISPLAY STACK-UP FOR A MOBILE ELECTRONIC DEVICE HAVING INTERNAL AND EXTERNAL DISPLAYS
First Claim
Patent Images
1. A display stack-up comprising:
- a backlight unit;
an external display device having bi-stable optical states, said states including a transmissive optical state and a reflective optical state, wherein the external display device is placed in contact against the transmissive backlight layer; and
an internal display device, wherein the internal display device is placed in contact against the external display device.
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Accused Products
Abstract
A display stack-up (300) is provided for a mobile electronic device (100) having an internal and external display, for example, a clamshell style mobile phone. The display stack-up comprises a backlight unit (114) and an external display device (110) having bi-stable optical states. The external display device (110) is placed in contact with, and is optically coupled to, the backlight unit (114). The display stack-up further comprises an internal display device (106) which is placed in contact with, and is optically coupled to, the external display device (110).
28 Citations
20 Claims
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1. A display stack-up comprising:
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a backlight unit; an external display device having bi-stable optical states, said states including a transmissive optical state and a reflective optical state, wherein the external display device is placed in contact against the transmissive backlight layer; and an internal display device, wherein the internal display device is placed in contact against the external display device. - View Dependent Claims (2, 3, 4, 5)
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6. A mobile electronic device comprising:
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an internal display device; an external display device having a bi-stable optical property, said external display device being in contact with said internal display device; a backlight in contact with said external display device; and a control component coupled to said internal display device, said external display device, and said backlight. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for providing visual information in a mobile electronic device, the mobile electronic device having an external display and an internal display, the method comprising:
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switching said external display into a reflective optical state; supplying light to said external display from a backlight; reflecting light by said external display from said backlight; switching said external display into a transmissive optical state; and transmitting light from said backlight through said external display to said internal display. - View Dependent Claims (18, 19, 20)
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Specification