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Liquid crystal device, method for producing the same, and electronic apparatus

A technology for liquid crystal devices and manufacturing methods, applied in nonlinear optics, instruments, optics, etc., capable of solving the problems of waste of materials for forming retardation films and complicated manufacturing processes, etc.

Inactive Publication Date: 2009-06-03
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the above method of forming the retardation film, the retardation film must be patterned corresponding to red, blue, and green pixels, and there is a problem that the manufacturing process is complicated.
[0010] In addition, in the case of patterning by photoetching, there is a problem that most of the materials for forming the retardation film are wasted.

Method used

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  • Liquid crystal device, method for producing the same, and electronic apparatus
  • Liquid crystal device, method for producing the same, and electronic apparatus
  • Liquid crystal device, method for producing the same, and electronic apparatus

Examples

Experimental program
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Embodiment approach 1

[0075]

[0076] First, the liquid crystal device of this embodiment will be described. figure 1 is an equivalent circuit diagram showing the electrical configuration of the liquid crystal device.

[0077] Such as figure 1 As shown, the liquid crystal device 100 of this embodiment has a plurality of sub-pixels SG. Each sub-pixel SG has: a pixel electrode 9 ; a common electrode 19 ; and a TFT (Thin Film Transistor) 30 for switching and controlling the pixel electrode 9 . The liquid crystal layer 50 is located between the pixel electrode 9 and the common electrode 19 . The details of the liquid crystal layer 50 will be described later, and the liquid crystal layer 50 is divided into a first liquid crystal layer 50a and a second liquid crystal layer 50b. The common electrode 19 is electrically connected to the common line 3 b extending from the scanning line driver circuit 90 so as to be maintained at a common potential in each sub-pixel SG.

[0078] The data line 6 a extend...

Embodiment approach 2

[0127]

[0128] Next, the liquid crystal device of Embodiment 2 and its manufacturing method will be described with reference to the drawings. Figure 8 (a) and (b) are schematic cross-sectional views showing the structure of the liquid crystal device of the second embodiment. In addition, the same code|symbol is used for the part of the same structure as said Embodiment 1, and is demonstrated.

[0129] Such as Figure 8 As shown in (a), the liquid crystal device 200 of this embodiment further includes a liquid crystal layer thickness adjustment layer 25 ( 25G) for adjusting the thickness of the first liquid crystal layer 50 a in the reflective display region R compared to the first embodiment described above. The basic optical design conditions are the same as those of the liquid crystal device 100 in Embodiment 1, and the Figure 4 conditions shown.

[0130] The liquid crystal layer thickness adjustment layer 25 ( 25G ) is transparent and optically isotropic, and is lam...

Embodiment approach 3

[0151]

[0152] Next, a mobile phone as an electronic device according to the present embodiment will be described. Figure 11 It is a schematic perspective view showing a mobile phone as an electronic device.

[0153] Such as Figure 11 As shown, the mobile phone 300 of this embodiment has a main body including an input unit for operation and a display unit 301 . The display unit 301 incorporates the liquid crystal device 100 or the liquid crystal device 200 and an illumination device for illuminating the device. Accordingly, displayed information can be confirmed by transmissive display using transmitted light from the lighting device and reflective display using incident light such as external light. That is, in a sufficiently bright environment such as outdoors, information can be confirmed by reflective display without driving the lighting device. That is, the mobile phone 300 that saves power and has a long battery life is realized.

[0154]The mobile phone 300 is ...

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Abstract

The invention provides a semi-transmission reflection type liquid crystal device of simpler structure, method for producing the same and electronic apparatus comprising the same. The liquid crystal device includes a pair of substrates; a partition wall member that partitions a region sandwiched between the pair of substrates to provide reflective display regions and transmissive display regions; a plurality of pixels each including a plurality of pixel regions, each of the pixel regions having each of the reflective display regions and each of the transmissive display regions; and a first liquid crystal layer made of a first liquid crystal and a second crystal layer made of a second liquid crystal, the first and the second liquid crystal layers, respectively, being enclosed in the reflective display region and the transmissive display region, respectively, partitioned by the partition wall member so as to sandwich the first and the second liquid crystal layers between the pair of substrates, wherein a phase difference value of reflected light in the first liquid crystal layer is approximately equal to a phase difference value of transmitted light in the second liquid crystal layer.

Description

technical field [0001] The present invention relates to a liquid crystal device having a reflective display area and a transmissive display area, a method for manufacturing the liquid crystal device, and electronic equipment. Background technique [0002] As a liquid crystal device, there is known a liquid crystal display device including: an array substrate intersecting a plurality of scanning lines and a plurality of signal lines; Lines and signal lines intersect each other with red, blue, and green pixels each having a reflective part having a member for reflecting external light and a phase difference film (phase difference film). When the phase difference value (phase difference value) is rR, the phase difference value in the phase difference film of the green pixel is rG, and the phase difference value in the phase difference film of the blue pixel is rB, rR>rG, rG>rB At least one of , rR>rB holds, and 120nm<rR<180nm, and 110nm<rG<170nm, and 80nm&...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/1339G02F1/1333
CPCG02F1/134363G02F1/133377G02F1/133512G02F1/133555G02F1/1335G02F1/1343
Inventor 铃木克己大竹俊裕
Owner SEIKO EPSON CORP
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