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Liquid crystal display device

A technology of liquid crystal display device and liquid crystal display panel, which is applied to static indicators, optics, instruments, etc., and can solve the problems that structures and methods are not disclosed or implied.

Inactive Publication Date: 2009-03-04
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Moreover, the above-mentioned second example and the third example are all based on using LED as the light source, using a laser light source and a white light source composed of three colors of R light, G light, and B light. methods are not disclosed or implied at all

Method used

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Examples

Experimental program
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no. 1 example

[0034] figure 1 (A) and figure 1 (B) is a diagram showing the structure of the liquid crystal display device 1 of the first embodiment of the present invention, figure 1 (A) is a schematic plan view showing the outline of the structure of the liquid crystal display device 1, figure 1 (B) is along figure 1 (A) A schematic cross-sectional view cut along line A-A. When the liquid crystal display device 1 is shown in the figure, each part of the surface of the housing 16 and the housing portion 18 housing the light source is removed, and each internal structure is clearly shown. figure 2 (A) and figure 2 (B) is a conceptual diagram illustrating the structure of the liquid crystal display panel 20 used in the liquid crystal display device 1 of this embodiment, figure 2 (A) is a top view concept map, figure 2 (B) is along figure 2 (A) Conceptual cross-sectional diagram taken along line B-B. Additionally, with figure 1 The same symbols are attached to the same elements....

no. 2 example

[0071] Figure 4 (A) and Figure 4 (B) is a figure showing the structure of the liquid crystal display device 2 of the second embodiment of the present invention, Figure 4 (A) is a plan view showing the outline of the structure of the liquid crystal display device 2, Figure 4 (B) is along Figure 4 (A) Schematic diagram of a cross section taken along line A-A. for with figure 1 (A) and figure 1 (B) The same elements are given the same symbols, and descriptions thereof may be omitted. When the liquid crystal display device 2 is shown in the figure, parts of the casing 26 and the surface of the accommodating portion 28 are also removed to make the internal structures easier to understand. Figure 4 (A) and Figure 4 The liquid crystal display device 2 shown in (B) and figure 1 (A)~ figure 2 The liquid crystal display device 1 shown in (B) is different in that a light emitting diode (LED) is used as a light source used in the light source unit. The structure and driv...

no. 3 example

[0087] FIG. 5 is a conceptual sectional view showing the structure of a liquid crystal display device 4 according to a third embodiment of the present invention. For with figure 1 (A)~ Figure 4 (B) The same elements are given the same symbols, and descriptions thereof may be omitted. The difference between the liquid crystal display device 4 shown in FIG. 5 and the liquid crystal display device 1 of the first embodiment and the liquid crystal display device 2 of the second embodiment is that the light source part is a projection-type lighting device, which emits light from the projection-type lighting device. The parallel light enters the liquid crystal display panel and passes through it, thereby displaying a projection structure on the screen. In addition, since the structure of the liquid crystal display panel 20 shown in FIG. figure 2 (A) and figure 2 The structure shown in (B) is the same, so, the following, based on figure 2 (A) and figure 2 The symbols shown ...

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PUM

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Abstract

The present invention provides a liquid display device which can display image with better white grade when image that should emphasize white is displayed. A backlight illuminating device illuminating the liquid crystal display panel comprises a white light source emitting white light besides laser light sources emitting red light, blue light and green light. When the image displayed by liquid crystal display panel is an image which should emphasize white, white light from white light source is illuminated on the liquid crystal display panel besides red light, blue light and green light from laser light sources. Thereby the image which should emphasize white is displayed with an image which has more natural image quality.

Description

technical field [0001] The present invention relates to a liquid crystal display device capable of performing color display with good color reproducibility. Background technique [0002] Conventionally, among liquid crystal display devices, active matrix (Active Matrix) type liquid crystal display devices have been widely used as display devices for personal computers or liquid crystal television display devices. Moreover, in terms of these uses, large-screen expansion is rapidly developing. Furthermore, active matrix liquid crystal display devices require high-definition, wide color reproduction range, and high-quality displays regardless of the size of the display screen. This is also to maintain an advantage in competition with other display devices such as plasma display panels (PDPs). Moreover, low power consumption is also required at the same time. [0003] In order to reduce power consumption and cost, studies are being made to increase the aperture ratio of pixel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G02F1/1335G02F1/13357G02F1/139G09G3/20G09G3/34G09G3/36
CPCG09G2360/145H04N9/3117G09G2310/0235G09G2340/06G09G3/3607G09G3/3413
Inventor 山本和久水岛哲郎伊藤达男笠澄研一门胁慎一
Owner PANASONIC CORP