초록 ▼

A dual-sided electrophoretic display (700) having a first region (701) and a second region (702) is provided. Each of the first region (701) and the second region (702) includes selectively operable members (703,704) that function as pixels for presenting images on the electrophoretic display (700).

A dual-sided electrophoretic display (700) having a first region (701) and a second region (702) is provided. Each of the first region (701) and the second region (702) includes selectively operable members (703,704) that function as pixels for presenting images on the electrophoretic display (700). Each of the selectively operable members (703,704) is driven by a driver circuit (710) by way of corresponding thin film transistors and capacitors (742,742), which are opaque. As the selectively operable members (704) of the second region (702) are bigger than are the selectively operable members (703) of the first region (701), the aperture ratio of the selectively operable members (704) of the second region (702) is greater than in the first region (701) when viewed from the rear side (730). Thus, a contrast ratio of the second region (602), when viewed from the rear side (730) is sufficiently high that text, icons, and characters presented in the second region (602) are legibly visible on the rear side (730).

대표청구항 ▼

1. A display assembly for use in an electronic device, the display assembly comprising an electrophoretic display and a driver circuit coupled thereto, wherein the electrophoretic display comprises at least a first region and a second region, wherein at least the second region is visible from both a

1. A display assembly for use in an electronic device, the display assembly comprising an electrophoretic display and a driver circuit coupled thereto, wherein the electrophoretic display comprises at least a first region and a second region, wherein at least the second region is visible from both a front side and a rear side of the electrophoretic display, further wherein a contrast ratio associated with the second region, as viewed from the rear side, is greater than a contrast ratio associated with the first region, as viewed from the rear side. 2. The display assembly of claim 1, wherein the contrast ratio associated with the second region, as viewed from the rear side, is at least two to one. 3. The display assembly of claim 1, wherein a pixel aperture ratio associated with pixels in the second region is greater than a pixel aperture ratio associated with pixels in the first region. 4. The display assembly of claim 1, wherein both the first region and the second region comprise selectively operable elements, wherein a selectively operable element in the first region is smaller than a selectively operable element in the second region. 5. The display assembly of claim 4, wherein the driver circuit is configured to selectively operate each of the selectively operable elements by a plurality of thin film transistors disposed upon a transparent substrate, wherein the second region comprises less thin film transistors per unit area than the first region. 6. The display assembly of claim 1, wherein the driver circuit is common to both the first region and the second region.