CN1138170C - Regulatable LCD - Google Patents
Regulatable LCD Download PDFInfo
- Publication number
- CN1138170C CN1138170C CNB001227742A CN00122774A CN1138170C CN 1138170 C CN1138170 C CN 1138170C CN B001227742 A CNB001227742 A CN B001227742A CN 00122774 A CN00122774 A CN 00122774A CN 1138170 C CN1138170 C CN 1138170C
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- polaroid
- liquid crystal
- crystal display
- light
- display cells
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Abstract
The present invention relates to an adjustable liquid crystal display device which comprises a liquid crystal display element, a light source, a first polarizing sheet and a second polarizing sheet, wherein the liquid crystal display element has a light incident face and a light emitting face; the light source is used for emitting light to the light incident face of the liquid crystal display element; the first polarizing sheet is arranged between the liquid crystal display element and the light source to convert the light into polarizing light in a polarization direction; the second polarizing sheet is arranged at the side of the light emitting face of the liquid crystal display element. The present invention is characterized in that a polarizing sheet regulating member is arranged in the device, the polarizing sheet regulating member can cause the first polarizing sheet and the second polarizing sheet to form relative rotation, an angle between the polarization directions of the first polarizing sheet and the second polarizing sheet is changed, and the color or the contrast of characters and backgrounds displayed by the liquid crystal display device are changed.
Description
Technical field
The present invention relates to a kind of regulatable LCD; Be particularly related to and utilize an adjusting mechanism to make two polaroids in the display device form that relativities are rotated and the variation that makes the literal that shows on the liquid crystal indicator and background generation color or contrast.
Background technology
Fig. 1 is the sectional view of known liquid crystal indicator, and it comprises: a liquid crystal display cells 7, one first polaroid 2, one second polaroid 6 and light source 1.This liquid crystal display cells 7 has one first glass 3, a liquid crystal layer 4 and one second glass 5, and wherein this liquid crystal layer 4 is arranged between this first glass 3 and this second glass 5.This first polaroid 2 is provided with and is fixed on first glass, 3 belows, and this second polaroid 6 is provided with and is fixed on second glass, 5 tops.This light source 1 is arranged near a side of this first polaroid 2 and towards liquid crystal display cells 7 launches not polarized light.
When light source 1 was launched not polarized light and this liquid crystal display cells 7 and received an image data, polarized light was not converted into the polarized light with certain polarization direction through first polaroid 2.Then, this polarized light with a polarization direction is again by second polaroid 6, and last liquid crystal indicator produces the literal and the background of constant color and contrast.
Yet, present known this type of display device, its first polaroid 2 and second polaroid 6 all are fixedly arranged at liquid crystal display cells about in the of 7 both sides.The brightness of this type of display device, to color when in case adjust fixing after, just be difficult for adjusting.Therefore, just default display text or the background color of malleable display device not after display device is dispatched from the factory.Yet consumption electronic products now, be particular about polytrope and user guiding, therefore the commodity with above-mentioned display device will definitely satisfy the characteristic that the consumer abandons the old for the new, and the change color of displaying contents also can't be adjusted according to user's hobby in change at any time.
Summary of the invention
Therefore, the invention provides a kind of regulatable LCD, this device comprises: a liquid crystal display cells, a light source, one first polaroid and one second polaroid.This liquid crystal display cells has a light entrance face and a light emitting surface, in order to show image or written historical materials.Light source is what to be used for to the light entrance face emitting incident light of liquid crystal display cells.First polaroid is arranged between liquid crystal display cells and the light source, and being used for this light is converted into can be by the polarized light of liquid crystal display cells.Second polaroid is arranged at the light emitting side of liquid crystal display cells.The present invention also comprises polaroid adjustment member, utilizing this adjustment member to make this first polaroid and this second polaroid can form relativity rotates, make and literal and the background that the folded polarization angle of two polaroids is different and liquid crystal indicator is shown the variation in color or the contrast occurs.The user is complied with its hobby and adjusts at any time and change shown literal and the background color of display device.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and in conjunction with the accompanying drawings, be described in detail below:
Fig. 1 is the sectional view of known liquid crystal indicator;
Fig. 2 is the sectional view of the regulatable LCD of first embodiment of the invention;
Fig. 3 is the sectional view of the regulatable LCD of second embodiment of the invention;
Fig. 4 is the sectional view of the regulatable LCD of third embodiment of the invention;
Fig. 5 is a communication mobile phone of using regulatable LCD of the present invention.
Fig. 2 is the sectional view of the regulatable LCD of first embodiment of the invention.
Embodiment
This regulatable LCD comprises a liquid crystal display cells 70, a light source 10, one first polaroid 20 and one second polaroid 60.
This liquid crystal display cells 70 is used for display image information, and it has a light entrance face and a light emitting surface.Light source is in order to launch light towards liquid crystal display cells.This liquid crystal display cells 70 has one first glass 30, a liquid crystal layer 40 and one second glass 50, and wherein first glass 30 is the light emitting surface of this liquid crystal display cells 70 near the light source 10 and second glass 50.
Wherein first polaroid 20 is arranged on the polaroid adjustment member 80, and separates with a space with first glass 30 of liquid crystal display cells 70.First polaroid 20 will be converted into from the light of light source 10 can be by the polarized light of liquid crystal display cells 70.
Present embodiment is characterised in that: adjust this polaroid adjustment member 80 and can make this first polaroid 20 and this second polaroid 60 form relativities rotation, and the folded polarization angle of two polaroids is changed, variation in color or the contrast appears in literal and background that liquid crystal display cells is shown.
In the present embodiment, the adjustment member 80 of polaroid also can combine with the liquid crystal panel (LCD cover does not indicate) in the known liquid crystal indicator, reaches the purpose of easy adjustment, convenient design.
Fig. 3 is the sectional view of the regulatable LCD of second embodiment of the invention.
This regulatable LCD comprises a liquid crystal display cells 70, a light source 10, one first polaroid 20 and one second polaroid 60.
This liquid crystal display cells 70 has a light entrance face and a light emitting surface, in order to display image information.Light source 10 is to be used for to liquid crystal display cells 70 emission light.This liquid crystal display cells 70 has one first glass 30, a liquid crystal layer 40 and one second glass 50, and wherein first glass 30 is the light emitting surface of this liquid crystal layer 40 near the light source 10 and second glass 50.
One first polaroid 20 is set between liquid crystal display cells 70 and light source 10, and fixes this first polaroid 20 on first glass 30 of liquid crystal display cells 70.First polaroid 20 can be converted into the not polarized light from light source 10 can be by the polarized light of liquid crystal display cells 70.
Present embodiment is characterised in that: rotate this polaroid and adjust member 80, when making this first polaroid 20 form the relativity rotation with this second polaroid 60, because of the folded polarization angle difference of two polaroids, and the variation in color or the contrast appears in literal and background that liquid crystal display cells 70 is shown.
Above-mentioned polaroid adjust member 80 also can with backlight (Backlight the holder indicates) combination in the known liquid crystal indicator, also be the Another Application of present embodiment.
Fig. 4 is the sectional view of the regulatable LCD of third embodiment of the invention.
This regulatable LCD comprises a liquid crystal display cells 70, a light source 10, one first polaroid 20 and one second polaroid 60.
This liquid crystal display cells 70 has a light entrance face and a light emitting surface, and data capable of displaying image.Light source 10 is to be used for to liquid crystal display cells 70 emission light.This liquid crystal display cells 70 has one first glass 30, a liquid crystal layer 40 and one second glass 50, and wherein first glass 30 is arranged at the light emitting surface of this liquid crystal layer 40 near the light source 10 and second glass 50.
One first polaroid 20 is set between liquid crystal display cells 70 and light source 10, wherein this first polaroid 20 is to be arranged at one first polaroid to adjust on the member 80, and separates with first glass 30 of liquid crystal display cells 70.First polaroid 20 will be converted into from the not polarized light of light source 10 can be by the polarized light of liquid crystal display cells 70.
Present embodiment is characterised in that: rotate this first or second polaroid and adjust member 80,90, make this first polaroid 20 and this second polaroid 60 can form relativity and rotate that the variation in color or the contrast appears in literal and background that liquid crystal display cells 70 is shown.
Fig. 5 uses a communication mobile phone 100 of adjusting liquid crystal display cells of the present invention.As shown in the figure, the user can pass through this wheelwork 200, makes win polaroid and second polaroid produce the polarizing angle relativity and changes, and makes liquid crystal indicator 300 shown literal and background, the variation in color or the contrast occurs.
In first embodiment of the invention to the three embodiment, when first polaroid and the rotation of second polaroid formation relativity, literal and background that liquid crystal display cells shows, the variation on color occurring and contrasting.For example white gravoply, with black engraved characters, black matrix wrongly written or mispronounced character, orange word of the blue end, the yellow word in the purple end or the like.In addition, for now, with cold light during as light source, the light and shade correlative value (contrast ratio CR) is about 11: 1, yet in the previous embodiment, under some anglec of rotation, light and shade contrasts even can increase to 20: 1, than known technology more excellent effect is arranged.
Among first embodiment of the invention to the three embodiment, the light source kind comprises cold light, light emitting diode etc.This regulatable LCD can be applied to have mobile phone (mobile phone), PDA(Personal Digital Assistant), handheld game device of liquid crystal display cells or the like.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing to change and retouching, so protection scope of the present invention should be with being as the criterion that claims scope is defined.
Claims (7)
1. regulatable LCD comprises:
One liquid crystal display cells has a light entrance face and a light emitting surface, is used for show image or written historical materials;
One light source is towards the light entrance face emitting incident light of this liquid crystal display cells;
One first polaroid is arranged between liquid crystal display cells and the light source, and this light is converted into can be by the polarized light of liquid crystal display cells; And
One second polaroid is arranged at the light emitting surface side of liquid crystal display cells;
It is characterized in that this display device also comprises:
One polaroid is adjusted member, this first polaroid is arranged on this polaroid and adjusts on the member, and separate with this light entrance face, the relativity of utilizing this adjustment member to form between this first polaroid and this second polaroid is rotated, make and literal and the background that liquid crystal display cells shows the variation on color or the contrast occurs.
2. regulatable LCD as claimed in claim 1, wherein this liquid crystal display cells one second glass and this first glass of having a liquid crystal layer, be arranged at one first glass of light entrance face and be arranged on light emitting surface separates with this first polaroid.
3. regulatable LCD as claimed in claim 2, wherein this second polaroid is arranged on the second on glass of this liquid crystal display cells.
4. regulatable LCD comprises:
One liquid crystal display cells has a light entrance face and a light emitting surface, is used for show image or written historical materials;
One light source is to the light entrance face emitting incident light of this liquid crystal display cells;
One first polaroid is arranged between liquid crystal display cells and the light source, and this light is converted into can be by the polarized light of liquid crystal display cells; And
One second polaroid is arranged on the light emitting surface side of liquid crystal display cells;
It is characterized in that this display device also comprises:
One polaroid is adjusted member, this second polaroid is arranged on this polaroid and adjusts on the member, and separate with this light emitting surface, the relativity of utilizing this adjustment member to form between this first polaroid and this second polaroid is rotated, make and literal and the background that liquid crystal display cells shows the variation on color or the contrast occurs.
5. regulatable LCD as claimed in claim 4, wherein this liquid crystal display cells one second glass and this second glass of having a liquid crystal layer, be arranged at one first glass of light entrance face and be arranged at light emitting surface separates with this second polaroid.
6. regulatable LCD as claimed in claim 5, wherein this first polaroid is arranged at the first on glass of this liquid crystal display cells.
7. regulatable LCD comprises:
One liquid crystal display cells has a light entrance face and a light emitting surface, is used for show image or written historical materials;
One light source is to the light entrance face emitting incident light of this liquid crystal display cells;
One first polaroid is arranged between liquid crystal display cells and the light source, and this light is converted into can be by the polarized light of liquid crystal display cells; And
One second polaroid is arranged on the light emitting surface side of liquid crystal display cells;
It is characterized in that this display device also comprises:
One first polaroid is adjusted member, and this first polaroid is arranged on one first polaroid and adjusts on the member, and separates with this light entrance face, and
One second polaroid is adjusted member, and this second polaroid is arranged on one second polaroid and adjusts on the member, and separates with this light emitting surface;
The relativity of utilizing this first polaroid adjustment member and this second polaroid adjustment member to form between this first polaroid and this second polaroid is rotated, and makes literal and the background that liquid crystal display cells shows the variation on color or the contrast to occur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001227742A CN1138170C (en) | 2000-08-14 | 2000-08-14 | Regulatable LCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001227742A CN1138170C (en) | 2000-08-14 | 2000-08-14 | Regulatable LCD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1338713A CN1338713A (en) | 2002-03-06 |
| CN1138170C true CN1138170C (en) | 2004-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001227742A Expired - Fee Related CN1138170C (en) | 2000-08-14 | 2000-08-14 | Regulatable LCD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1138170C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090416B (en) | 2014-07-10 | 2017-04-12 | 京东方科技集团股份有限公司 | Interesting display system |
| CN104407470A (en) * | 2014-12-09 | 2015-03-11 | 京东方科技集团股份有限公司 | Display device |
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2000
- 2000-08-14 CN CNB001227742A patent/CN1138170C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1338713A (en) | 2002-03-06 |
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