Display panel, and display device

A display panel and substrate technology, applied in optics, instruments, nonlinear optics, etc., can solve problems such as not easy to improve contrast, and achieve the effect of reducing black brightness and high contrast
CN102713746AInactive Publication Date: 2012-10-03SONY CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SONY CORP
Publication Date
2012-10-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

Provided are a display panel and a display device, wherein it is possible to obtain a bright image having high contrast. A display panel (10) is configured from an optical modulation element (30). The optical modulation element (30) is provided with electrodes (32) capable of generating a main electric field in a direction that is parallel to a plane intersecting with the nominal line of a transparent substrate (31), and an optical modulation layer (34) containing particles (34B) and a bulk (34A) having optical anisotropy. The optical axis (AX1, AX2) of the bulk (34A) and of the particles (34B) are parallel or are approximately parallel to the surface of the transparent substrate (31), and, depending on the size of the electric field generated by means of the electrodes (32), are oriented in a different direction from one another or are oriented in the same or approximately the same direction as one another in a plane that is parallel or is approximately parallel to the surface of the transparent substrate (31).
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Description

technical field

[0001] The present invention relates to a display panel and a display unit including a light modulation device exhibiting scattering and transparency to light. Background technique

[0002] In recent years, demand for display units of mobile devices such as mobile phones and electronic papers has increased, and reflective display units have drawn attention. A reflective display unit uses a reflective plate to reflect incident light from the outside to perform display without using a backlight. Therefore, the power consumed by the backlight is saved, which enables the mobile device to be driven for a longer period of time than in the case of using a transmissive type display unit. Also, thereby, not using a backlight allows weight reduction and miniaturization.

[0003] However, with a reflective display unit, it is not easy to increase the contrast, and therefore, various methods have been proposed in the past. For example, Patent Document 1 proposes insta...

Claims

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