Transflective liquid crystal display panel and color liquid crystal display device

Abstract

There provide a semitransmissive liquid crystal display panel and a color liquid crystal display device capable of providing high-luminance and high-reproducibility color display in any of transmission mode and reflection mode. The semitransmissive liquid crystal display panel has a semitransmissive reflecting layer 10 on which a reflecting film 9 reflecting light made incident from the side of a 2nd substrate 5 is formed and an opening part 9a for transmission transmitting light made incident from the side of a 1st substrate 4 is formed in a portion of the reflecting film 9, and a color filter layer 13 which has color filters 13R, 13G, and 13B of different colors buried in dot-corresponding regions 11 of the semitransmissive reflecting layer 10 sectioned by a black matrix layer 12, and the color filter layer 13 has opening parts 22 for reflection which expose a portion of the reflecting film 9.

Description

technical field [0001] The present invention relates to a semi-transmissive liquid crystal display panel having a transmissive function and a reflective function, and a color liquid crystal display device using such a semi-transmissive liquid crystal display panel for color display. Background technique [0002] In recent years, in portable electronic devices such as mobile phones and portable game machines, the driving time of the battery has a great influence on the usability, so a transflective liquid crystal display device that can suppress power consumption is used for the display part. In this transflective liquid crystal display device, for example, in a bright place, the backlight arranged on the back side of the liquid crystal display panel is turned off, and the display is performed in a reflective mode; in a dark place, the side of the liquid crystal display panel is turned on. Backlight on the back side for display in transmissive mode. Such a transflective liqu...

AI Technical Summary

Problems solved by technology

However, in this patent document 2, the optical density (including absorption and film thickness) of the color filter is lightened in the reverse color region, thereby obtaining desired color reproduction in both reflection and transmission modes. properties, the reflection-view angle characteristics of the anti-color film combined with this may not be able to obtain the desired characteristics

That is, although the reflective film is arranged in the display panel, its surface shape is formed in the molten state of the protective film layer, so it is almost impossible to control its cross-sectional shape.

Therefore, the reflection-field angle characteristics at this time can only be obtained to represent the characteristics of a Gaussian distribution with a certain regular reflection direction as the axis of symmetry.

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