Liquid crystal panel

A liquid crystal display panel and liquid crystal layer technology, applied in optics, instruments, nonlinear optics, etc., can solve problems such as inability to reverse the light and dark states of the pixel part and the background part

Inactive Publication Date: 2005-01-19
CITIZEN WATCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0020] Also, even in the case of using a twisted nematic (TN) liquid crystal layer or a super twisted nematic (STN) liquid crystal layer and a polarizer, on the same liquid crystal display panel, the image cannot be reversed at any time electrically. The light and dark state of the pixel part and the background part

Method used

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Embodiment Construction

[0090] In order to explain the present invention in more detail, embodiments of the present invention will be described with reference to the accompanying drawings.

[0091] [The first embodiment: Figure 1 to Figure 3 ]

[0092] First, we use Figure 1 to Figure 3 A first embodiment of the liquid crystal display panel according to the present invention will be described.

[0093] figure 1 It is an enlarged plan view showing an example of arrangement of segment electrodes and auxiliary electrodes on the liquid crystal display panel. figure 2 is associated with the LCD panel along the figure 1 An enlarged cross-sectional view of a portion corresponding to the cross-section of the line B-B. image 3 It is an enlarged cross-sectional view of a main part showing the relationship among segment electrodes, auxiliary electrodes, wiring electrodes and terminals for segment electrodes formed on the upper substrate.

[0094] The LCD panel such as figure 2 As shown, an upper s...

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Abstract

A liquid crystal layer (3) is sandwiched between upper substrates (1) and lower substrates (2), a segment electrode (5g) and an auxiliary electrode (11) surrounding the segment electrode (5g) with a gap (G1) are formed on the upper substrate (1) by using the same transparent conductive film. An opposite electrode (6) is provided over the whole display area of the lower substrate (2). The overlap between the counter electrode (6) and the segment electrode (5g) constitutes a pixel portion (32), and the overlap between the opposite electrode (6) and the auxiliary electrode (11) constitutes a background portion (33). Voltages are selectively applied to the liquid crystal layer (3) of the pixel portion (32) and that of the background portion (33), and thereby the transmission, diffusion, or absorption of the light incident on the liquid crystal layer (3) is arbitrarily varied to conduct display.

Description

technical field [0001] The present invention relates to a segmented liquid crystal display panel suitable for displaying information composed of numbers and letters, such as time information and calendar information of a clock, and a telephone number of a cellular phone. Background technique [0002] As for the liquid crystal display panel for digital display that displays information by characters and numbers, there are two types of segment type and matrix type. Compared with the matrix type, the segmented type has a smaller degree of display freedom (display capacity), but because of its ease of manufacture and low cost, this type is actively used in display devices such as clocks and mobile phones. [0003] In the existing segmented liquid crystal display panel, a liquid crystal layer is sandwiched between two glass substrates, and one of the substrates has segmented electrodes as a plurality of segmented electrodes that form patterns such as numbers, and the other is pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1334G02F1/1343
CPCG02F1/1334G02F1/134327G02F2201/121
Inventor 关口金孝
Owner CITIZEN WATCH CO LTD
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