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Liquid crystal display device and electronic apparatus

A technology of liquid crystal display device and liquid crystal layer, which is applied in optics, instruments, nonlinear optics, etc., can solve the problems of insufficient display of optical anisotropic elements, high cost, and large-scale device.

Active Publication Date: 2005-02-02
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the technology of Patent Document 1, since the above-mentioned optical anisotropic element is arranged behind the semi-transmissive reflective layer when viewed from the observer side, although it is possible to improve the display brightness in the transmissive mode, increase the contrast, and improve the viewing angle characteristics, But you can't get these effects in reflection mode
In addition, especially when the liquid crystal display device is applied to electronic equipment with a high frequency of use in the reflective mode, not only the function of the optical anisotropic element provided cannot be fully displayed, but also due to the installation of elements with low utilization value. Cost increase or increase in device size caused by

Method used

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  • Liquid crystal display device and electronic apparatus

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no. 1 Embodiment approach

[0033] figure 1 It is an enlarged partial cross-sectional view showing a pixel portion of a liquid crystal display device having the structure of the present invention. The liquid crystal display device 100 shown in this figure is an active matrix transflective liquid crystal display device. The outer surface of 10 is provided with a backlight 60 . In addition, a reflective display region 30 and a transmissive display region 40 are provided in one pixel. In the liquid crystal display device 100 of the present embodiment, the upper side shown in the figure (the outer side of the counter substrate 20 ) is used as the display surface, and the observer who visually views the display is positioned above the figure.

[0034] exist figure 1In the array substrate 10 shown, on the side of the liquid crystal layer 50 of the lower substrate 10A, a reflective layer 11 and a transparent insulating film 12 covering the reflective layer 11 are partially formed between a concave-convex res...

no. 2 Embodiment approach

[0059] Below, refer to Figure 10 The liquid crystal display device of the second embodiment will be described. in addition, Figure 10 is equivalent to the first embodiment image 3 diagram.

[0060] The liquid crystal display device of the second embodiment is the same as the first embodiment, and it is an active matrix type transflective liquid crystal display device, such as Figure 10 As shown, the structures of the retardation plate and the polarizing plate provided on the respective substrates arranged at intervals of the liquid crystal layer 50 are different from those of the first embodiment. Therefore, configurations other than the configurations of the retardation plate and the polarizing plate are the same as those of the first embodiment, and thus description thereof will be omitted.

[0061] In this embodiment, the retardation plate 115 and the linear polarizing plate 116 as an elliptically polarizing plate are disposed on the backlight side (the outer surfac...

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Abstract

The invention provides a transflective liquid crystal display device in which display is bright, with high contrast, and with less dependence on the viewing angle in the transmissive display mode. A liquid crystal display device includes a liquid crystal cell, the liquid crystal cell including an upper substrate, a lower substrate, a liquid crystal layer between the upper and lower substrates, and a transflective layer on the inner surface of the lower substrate. The liquid crystal display device further includes a first elliptical polarizer elliptical polarized light from the upper substrate being incident on the liquid crystal layer; and a second elliptical polarizer, elliptical polarized light from the lower substrate being incident on the liquid crystal layer. Only the first elliptical polarizer has a liquid crystal film in which a hybrid alignment is fixed.

Description

technical field [0001] The present invention relates to a transflective liquid crystal display device capable of performing display in both a reflective mode and a transmissive mode, and electronic equipment equipped with the device. Background technique [0002] The semi-transmissive reflective liquid crystal display device having both reflective mode and transmissive mode display mode can switch to either reflective mode or transmissive mode display mode according to the brightness of the surrounding environment, which can reduce power consumption while reducing power consumption. A liquid crystal display device that provides clear display without being affected by the brightness of the surrounding environment. [0003] As such a transflective liquid crystal display device, there has been proposed a structure in which a liquid crystal layer is sandwiched between an upper substrate and a lower substrate respectively provided with circularly polarizing plates, and a metal fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30G02F1/13G02F1/1335G02F1/13363
CPCG02F2202/40G02F1/133528G02F2413/04G02F1/13363G02F1/133555G02F2413/105G02F2001/133638G02F2001/133633G02F1/133633G02F1/133638G02F1/1335
Inventor 松岛寿治
Owner BOE TECH GRP CO LTD
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