Transflective liquid crystal device with particular stack of reflective, transmissive, and thickness adjusting layers and electronic device using the same
First Claim
1. A transflective liquid crystal device, comprising:
- a first substrate with first transparent electrodes formed above a surface of the first substrate;
a second substrate with second transparent electrodes formed above a surface of the second substrate opposed to said first electrodes;
a liquid crystal layer disposed between said first and second substrates;
a plurality of pixel regions formed at overlapping portions of the first transparent electrodes and the second transparent electrodes, one pixel region including a transmissive display region for transmissive display and a reflective display region for transmissive display and a reflective display region for reflective display separately; and
said first substrate including light reflecting layers substantially corresponding to the reflective display region, layer-thickness adjusting layers each making a layer thickness of said liquid crystal layer in said reflective display region less than a layer thickness of said liquid crystal layer in said transmissive display region, and said first transparent electrodes, stacked in this order from a lower layer side to an upper layer side;
wherein, on at least one of said first and second substrates, a light shielding film is disposed so as to overlap with a boundary region of said reflective display region and said transmissive display region.
2 Assignments
0 Petitions
Accused Products
Abstract
A liquid crystal device 1 includes a transparent first substrate 10 with a first transparent electrode 11 formed on the surface thereof, a transparent second substrate 20 with a second transparent electrode 21 is formed thereon, and a liquid crystal layer 50. A light reflecting layer 4 defining the reflective display region 31 and the transmissive display region 32 is formed on each pixel region 3. A layer-thickness adjusting layer 6 where a region corresponding to the transmissive display region 32 constitutes an opening 61, is formed on the upper layer side of the light reflecting layer 4. In the layer-thickness adjusting layer 6, the boundary portion of the reflective display region 31 and the transmissive display region 32 constitutes an inclined surface 60, and a light shielding film 9 is two-dimensionally superimposed on this boundary region.
54 Citations
12 Claims
-
1. A transflective liquid crystal device, comprising:
-
a first substrate with first transparent electrodes formed above a surface of the first substrate;
a second substrate with second transparent electrodes formed above a surface of the second substrate opposed to said first electrodes;
a liquid crystal layer disposed between said first and second substrates;
a plurality of pixel regions formed at overlapping portions of the first transparent electrodes and the second transparent electrodes, one pixel region including a transmissive display region for transmissive display and a reflective display region for transmissive display and a reflective display region for reflective display separately; and
said first substrate including light reflecting layers substantially corresponding to the reflective display region, layer-thickness adjusting layers each making a layer thickness of said liquid crystal layer in said reflective display region less than a layer thickness of said liquid crystal layer in said transmissive display region, and said first transparent electrodes, stacked in this order from a lower layer side to an upper layer side;
wherein, on at least one of said first and second substrates, a light shielding film is disposed so as to overlap with a boundary region of said reflective display region and said transmissive display region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification
-
- Resources
-
Current Assignee138 East LCD Advancements Limited (Vector Capital Corporation)
-
Original AssigneeSeiko Epson Corporation (Seiko Group)
-
InventorsMaeda, Tsuyoshi, Ozawa, Kinya, Urano, Nobutaka
-
Primary Examiner(s)Font, Frank G.
-
Assistant Examiner(s)Rude, Timothy L
-
Application NumberUS10/255,145Publication NumberTime in Patent Office1,119 DaysField of Search349/113, 349/114US Class Current349/114CPC Class CodesG02F 1/133512 Light shielding layers, e.g...G02F 1/133555 Transflectors
