GB2361087A - Illumination Arrangements for a Liquid Crystal Display - Google Patents

Illumination Arrangements for a Liquid Crystal Display Download PDF

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Publication number
GB2361087A
GB2361087A GB0008389A GB0008389A GB2361087A GB 2361087 A GB2361087 A GB 2361087A GB 0008389 A GB0008389 A GB 0008389A GB 0008389 A GB0008389 A GB 0008389A GB 2361087 A GB2361087 A GB 2361087A
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
crystal display
piece
light
present
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0008389A
Other versions
GB0008389D0 (en
Inventor
Chien Liang Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB0008389A priority Critical patent/GB2361087A/en
Publication of GB0008389D0 publication Critical patent/GB0008389D0/en
Publication of GB2361087A publication Critical patent/GB2361087A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Telephone Set Structure (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Beneath the liquid crystal display 10 is a dark illuminating piece 16, for example fluorescent material. This absorbs and then emits ambient light, reducing demand on the light sources 15. Light from these sources is guided to the liquid crystal by the light guide 13 and divergent piece 14. The liquid crystal display 10 is connected to the circuit board 12 by the bank wire 11.

Description

1 2361087 DARK ILLUMINATING PIECE OF LIQUID CRYSTAL DISPLAY IN
COMMUNICATION DEVICES
FIELD OF THE INVENTION
The present invention relates to a dark illuminating piece of a liquid crystal display used in communication device, and especially to a dark illuminating piece used in the liquid crystal display, thereby, the power is unnecessary to be updated frequently.
BACKGROUND OF THE INVENTION
The liquid crystal displays (LCD) are frequently used in pagers, mobile phones, and other communication devices. In general, as the communication devices are used at night, the light emitting diode and other light source are necessary. Thereby, the user may clearly see what displayed on the liquid crystal display. But, the light emitting diode wastes much power. If it is used frequently, the power consumption is large.
Therefore, the prior art liquid crystal display has many defects in practical usage which are necessary to be improved.
SUMMARY OF THE INVENTION
Accordingly, the primary object of the present invention is to provide a dark illuminating piece of a liquid crystal display of a 1 communication device. 1 n the present invention, a dark illuminating piece is installed at a bottom of a liquid crystal displaying plate, the dark illuminating piece is located between the liquid crystal displaying plate and the divergent piece, the dark illuminating piece absorbs light and then emit light. By the aforesaid structure, power can be saved without needing to updating battery frequently. Consequently, the present invention has improved the quality of the liquid crystal display of prior art communication devices. In defects in the present invention, such as power-consuming, and energy consuming of the light source is saved.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig, 1 is an assembled perspective view of the present invention.
Fig. 2 is an exploded perspective view of the present invention.
Fig. 3) is a partial cross sectional view of the present invention.
Fig. 4 is perspective view showing that the present invention is applied to a pager.
2 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
With reference to Figs. 1, 2, and 3, the assembled perspective view, exploded perspective view and the partial cross sectional view of the present invention are illustrated. The present invention provides a dark illuminating piece, such a fluorescent piece, used in communication devices, especially used in pagers, mobile phones, and other communication devices. The liquid crystal display (LCD) of the communication product includes a liquid crystal displaying plate 10 which is connected to a circuit board 12 through a bank wire 11 so that the liquid crystal displaying plate 10 can present a desired function.
The lower side of the liquid crystal displaying plate 10 has a light guide 13 with a proper width. The light guide 13 is fixed to the circuit board 12. The top of the light guide 13 has a divergent piece 14. Two sides of the light guide 131 are installed with light sources 15, such as light emitting diode. The light source 15 lights up, and the light passes through the light guide 13 to be divergent through the divergent piece 14 to illuminate the whole section so that the user can clearly see the display of the liquid crystal displaying plate 10 in dark or at night with a weak illumination. Therefore, the aforesaid structure is identical to that in the prior art, and is not confined in the scope of the present invention.
Therefore, the detail thereof will not be described further.
3 In the present invention, the bottom of the liquid crystal displaying plate 10, i.e. the place between the liquid crystal displaying plate 10 and the divergent piece 16, is provided with a dark illuminating piece 16 which can absorb light from outer environment, such as, from sun, lamps, etc, and then it can emit light further. Since the general used liquid crystal displaying plate 10 is transparent, the dark illuminating piece 16 absorbs light and then emit light by itself. The dark illuminating piece 16 can emit light, and thereby, the user may see what displayed on the liquid crystal displaying plate 10. By the installing of the dark illuminating piece 16, and there"fore, other.than light source 15, a further light source is provided to the user. Thus, by the dark illuminating piece 16, the power of the light source 15 is saved. The battery is seldom updated.
Referring to Fig. 4, a perspective view showing that the present invention is used in a pager. It is shown that the present invention can be used in a pager 20 or other communication product.
Consequently, the present invention has improved the quality of the liquid crystal display of prior art communication devices. In defects in the present invention, such as power-consuming. and energy consuming of the light source is saved.
Although the present invention has been described with reference to the preferred embodiments, it will be understood that the invention is not limited to the details described thereof. Various substitutions 4 and modifications have been suggested in the foregoing description, and others will occur to those of ordinary skill in the art. Therefore, all such substitutions and modifications are intended to be embraced within the scope of the invention as defined in the appended claims.

Claims (2)

  1. What is claimed is:
    A dark illuminating piece of a liquid crystal display of a communication device. the liquid crystal display comprising a transparent liquid crystal displaying plate which is connected to a circuit board through a bank wire; a lower side of the liquid crystal displaying plate having a light guide which is fixed to a circuit board; a top of the light guide having a divergent piece; lateral sides of the liaht guide bein installed with light sources, characterized in that 9 a dark illuminating piece is installed at a bottom of a liquid crystal displaying plate, the dark illuminating piece is located between the liquid crystal displaying plate and the divergent piece. the dark illuminating piece absorbs light and then emit light.
  2. 2. A liquid crystal display substantially as hereinbefore described with reference to, and as illustrated in the accompanying drawings.
    6
GB0008389A 2000-04-05 2000-04-05 Illumination Arrangements for a Liquid Crystal Display Withdrawn GB2361087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0008389A GB2361087A (en) 2000-04-05 2000-04-05 Illumination Arrangements for a Liquid Crystal Display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0008389A GB2361087A (en) 2000-04-05 2000-04-05 Illumination Arrangements for a Liquid Crystal Display

Publications (2)

Publication Number Publication Date
GB0008389D0 GB0008389D0 (en) 2000-05-24
GB2361087A true GB2361087A (en) 2001-10-10

Family

ID=9889277

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0008389A Withdrawn GB2361087A (en) 2000-04-05 2000-04-05 Illumination Arrangements for a Liquid Crystal Display

Country Status (1)

Country Link
GB (1) GB2361087A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1467229A2 (en) * 2003-04-07 2004-10-13 BSH Bosch und Siemens Hausgeräte GmbH Display for a household appliance

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984176A (en) * 1974-01-31 1976-10-05 Kabushiki Kaisha Daini Seikosha Reflective plates for a liquid crystal display device
US4142781A (en) * 1975-12-03 1979-03-06 Siemens Aktiengesellschaft Electro-optical display device with electro-optical light valves
US4167307A (en) * 1976-04-30 1979-09-11 Siemens Aktiengesellschaft Liquid crystal display device with supplementary lighting
GB2161309A (en) * 1984-07-03 1986-01-08 Hewlett Packard Co Apparatus for illuminating a liquid crystal display
GB2199435A (en) * 1986-12-25 1988-07-06 Nec Corp Pager receiver including a light emitting and a light sensing element adjacent to a translucent portion of a receiver housing
US5815228A (en) * 1996-12-06 1998-09-29 Ericsson Inc. Lighting for liquid crystal displays

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984176A (en) * 1974-01-31 1976-10-05 Kabushiki Kaisha Daini Seikosha Reflective plates for a liquid crystal display device
US4142781A (en) * 1975-12-03 1979-03-06 Siemens Aktiengesellschaft Electro-optical display device with electro-optical light valves
US4167307A (en) * 1976-04-30 1979-09-11 Siemens Aktiengesellschaft Liquid crystal display device with supplementary lighting
GB2161309A (en) * 1984-07-03 1986-01-08 Hewlett Packard Co Apparatus for illuminating a liquid crystal display
GB2199435A (en) * 1986-12-25 1988-07-06 Nec Corp Pager receiver including a light emitting and a light sensing element adjacent to a translucent portion of a receiver housing
US5815228A (en) * 1996-12-06 1998-09-29 Ericsson Inc. Lighting for liquid crystal displays

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1467229A2 (en) * 2003-04-07 2004-10-13 BSH Bosch und Siemens Hausgeräte GmbH Display for a household appliance
EP1467229A3 (en) * 2003-04-07 2005-01-19 BSH Bosch und Siemens Hausgeräte GmbH Display for a household appliance

Also Published As

Publication number Publication date
GB0008389D0 (en) 2000-05-24

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)