CN101533620A

CN101533620A - Novel color liquid crystal display (LCD)

Info

Publication number: CN101533620A
Application number: CN200910038666A
Authority: CN
Inventors: 李长峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-16
Filing date: 2009-04-16
Publication date: 2009-09-16

Abstract

The invention provides a novel color liquid crystal display (LCD), which belongs to the field of liquid crystal display and is especially suitable for electronic equipments. The invention aims at overcoming the defects that the current color LCD has complex production technique, difficult design and implementation and high cost and is not convenient for being applied in large-scale production in the field of general electronic equipments. The novel color LCD comprises a shell (1), an LCD panel (2), an LCD light guide plate (3), a PCB drive circuit board (4), a light source and a rear cover (5); the PCB drive circuit main-board and the light source are connected by a lead. The invention is characterized in that the light source is a tricolor light source comprising red color, green color and blue color; the tricolor light source is arranged on the side of the light guide plate; the light source is controlled by the PCB drive circuit main-board (4) to carry out time-sharing irradiance; a special IC controls the PCB drive circuit main-board. The novel color LCD has relatively simple manufacturing process, low cost and high production efficiency.

Description

A kind of novel chromatic liquid crystal screen

Technical field:

A kind of novel chromatic liquid crystal screen that the present invention proposes belongs to field of liquid crystal display, is applicable to the chromatic liquid crystal screen of electronic equipment especially.

Background technology:

Two kinds of LCDs chromatic colour and black and white, but chromatic liquid crystal screen is more much higher than black-and-white crystal display screen cost, its reason is LCD liquid-crystalline glasses mechanism complexity, the material cost height in the chromatic liquid crystal screen, and its manufacture craft and requiring than black and white LCD liquid-crystalline glasses height.LCDs (Fig. 3), comprise: shell 1, LCD liquid-crystalline glasses 2, LCDs light guide plate 3, PCB driving circuit mainboard 4, light source (among the figure and do not show) and bonnet 5, and the LCD liquid-crystalline glasses 2 (Fig. 1) of existing chromatic liquid crystal screen, it is made up of last polaroid 6, top glass substrate 7, color filter 8, liquid crystal layer 9, lower glass substrate 10, following Polarizer 11, light guide plate 12 and reflecting plate 13 successively; As light source, the extraction of each pixel color is to obtain object color component by R (red), G (green), B (indigo plant) and single independently cell or its various combination corresponding to this pixel through behind the colored filter to the chromatic liquid crystal screen majority with fluorescent tube.

The complex manufacturing technology of this kind LCD color liquid crystal glass, common black and white LCD liquid-crystalline glasses producer is difficult to realize that production in enormous quantities and flexible design realize the liquid crystal color effect on the common apparatus.

Summary of the invention:

A kind of novel chromatic liquid crystal screen that the present invention proposes, be in order to overcome existing color liquid crystal glass producing process complexity, design and realize that difficulty is big and cost is high, be not easy to produce in enormous quantities the shortcoming of application in the universal electronic device field, so proposition can be with the low-cost LCDs that realizes new type colorful of universal process.

For this reason, the present invention starts with from color LCD liquid-crystalline glasses, light guide plate, light source, the special-purpose driving circuit of IC and system controlling software and has carried out the reform of system.

A kind of novel chromatic liquid crystal screen comprises shell, LCD liquid-crystalline glasses, LCDs light guide plate, PCB driving circuit mainboard, light source (among the figure and do not show) and bonnet, and above parts are installed in the housing successively, lead connection PCB mainboard and light source; It is characterized in that described light source is R (red), G (green) and B (indigo plant) three primary light source, three primary light source is installed in LCDs light guide plate side; Light source is by the control of PCB driving circuit mainboard, and special-purpose IC controls PCB driving circuit mainboard.

By the above a kind of novel chromatic liquid crystal screen, it is characterized in that described LCD liquid-crystalline glasses is successively by last Polarizer, top glass substrate, liquid crystal layer, lower glass substrate, Polarizer and light guide plate are formed down.

Principle of work of the present invention is (Fig. 5): system's R (red) G (green) B (indigo plant) three primary light source in the timesharing point bright light source successively under IC control, in a cColor-cycling, divide sequential to show the red, green and blue three primary colours, utilize human eye vision to persist effect and reach the effect that zones of different or different time sections present different color.

The present invention need not use the complex mechanism of existing color LCD liquid-crystalline glasses, only needs the LCD liquid-crystalline glasses craftwork manufacture by black and white, cooperates special-purpose driving circuit just can watch colored effect on LCDs.Thereby can under general (black and white) LCD manufacturing condition, low cost realize the Color Liquid Crystal Display effect; Be applicable to and low-cost produce in enormous quantities and apply in each field.

Description of drawings:

Fig. 1 is the decomposing schematic representation of existing color liquid crystal glass.

Fig. 2 is the decomposing schematic representation of LCD liquid-crystalline glasses of the present invention.

Fig. 3 is the diagrammatic cross-section of chromatic liquid crystal screen of the present invention.

Fig. 4 is the decomposing schematic representation of chromatic liquid crystal screen of the present invention.

Fig. 5 is a light source works sequential chart of the present invention.

Among the figure: shell 1, LCD liquid-crystalline glasses 2, LCDs light guide plate 3, PCB driving circuit mainboard 4, bonnet 5, last Polarizer 6, top glass substrate 7, color filter 8, liquid crystal layer 9, lower glass substrate 10, following Polarizer 11, light guide plate 12, reflecting plate 13.

Embodiment:

Now with object lesson explanation the solution of the present invention.

Fig. 3,4 has shown the structure of chromatic liquid crystal screen of the present invention and the mutual relationship between part respectively, by shell 1, LCD liquid-crystalline glasses 2, LCDs light guide plate 3, PCB driving circuit mainboard 4 and bonnet 5, above parts are installed in the housing successively, light source (among the figure and do not show) is installed in the side of LCDs light guide plate 3, lead connection PCB mainboard and light source.Adopt the all-colour LED lamp as light source of R (red), G (green) and B (indigo plant) three primary colours.Fig. 2 is the exploded view of liquid-crystalline glasses of the present invention, and the LCD liquid-crystalline glasses is made up of last polaroid 6, top glass substrate 7, liquid crystal layer 9, lower glass substrate 10, following Polarizer 11 and light guide plate 12 successively.During work, system under IC control, (Fig. 5) (this example is one-period 18ms) in one-period, R (red), G (green) and B (indigo plant) three primary colours in the all-colour LED light source are lighted in timesharing successively.Because people's vision has time delay, the vision timesharing has received different colors in this cycle, so what reflect in human brain is not monochromatic color, but the mixed colour of three primary colours.

Manufacture craft of the present invention is easier to, and cost is low, the production efficiency height.

Claims

1, a kind of novel chromatic liquid crystal screen, comprise shell (1), LCD liquid-crystalline glasses (2), LCDs light guide plate (3), PCB driving circuit mainboard (4), light source and bonnet (5), above parts are installed in the housing successively, lead connection PCB driving circuit mainboard and light source; It is characterized in that described light source is R (red), G (green) and B (indigo plant) three primary light source; Three primary light source is installed in the light guide plate side; Light source is luminous by PCB driving circuit mainboard (4) control timesharing, special-purpose IC control PCB driving circuit mainboard.

2, a kind of novel chromatic liquid crystal screen according to claim 1 is characterized in that described LCD liquid-crystalline glasses (2) is successively by last Polarizer 6, top glass substrate 7, liquid crystal layer 9, lower glass substrate 10, Polarizer 11 and light guide plate 12 are formed down.