KR20030060402A - Manufacturing method of high definition Rear Screen for enhancing the viewing angle, color brightness, and contrast ratio - Google Patents

Abstract

PURPOSE: A method for manufacturing a high-definition rear screen is provided to improve visual angle, color tone and contrast by preventing image distortion, Moire phenomenon, ghost phenomenon, and color deformation. CONSTITUTION: Polyethylene(10) is inputted into a curing unit(15) so as to make polyethylene(10) into gel phase. Then, carbon(12) is inputted into the curing unit(15). One side or both sides of a glass frame are subject to a die casting process. Then, the glass frame is inputted into a cooler reactor, thereby forming a screen. The screen is positioned apart from a projector by a predetermined distance so as to display an image. Alternately, polymethyl metal acrylate is used instead of polyethylene(10). Catalyst is added to the glass frame.

Description

Manufacturing method of high definition Rear Screen for enhancing the viewing angle, color brightness, and contrast ratio}

The present invention relates to a high-definition rear screen manufacturing method for LCD projectors that increase the viewing angle, color tone, and contrast, and more particularly, by designing and manufacturing a high-resolution image on a small inch so as to be easily used in industry or home. It is about.

In general, when playing back an image, the video signal may be played through a playback device or a wired or wireless device such as a CRT TV or a projection TV using a projector. Looking at such an image device, the television is to amplify the radio wave from the outside to shoot electrons on the screen through the electron gun.

At this time, the electron from the electron gun is bent through the device called DY / FBT to form a scanning line, which causes a tremendous resistance. To prevent this, specially designed vacuum tubes are required, and there must be a glass tube with a considerable amount of weight.

One of the factors that can't be oversized for a normal television is the weight of a special glass tube for this vacuum tube.

Therefore, general television has a limited size of CRT, and the appearance of large television is difficult. To make up for these shortcomings, we made a projection TV using a projector as an image device that can produce a large screen. However, as the world spread through the digital revolution to the home, it inevitably required high resolution images. That is, image quality with a large number of scanning lines and a large number of pixels was required.

In the case of the scan line of the projection TV, at least 800 × 600 (vertical × horizontal) lines should be formed to have the basic computer-level scan line, and thus the Internet screen can be seen without distortion.

In the case of projection TVs, CRT type projectors have traditionally become the main components, and the development of LCD type projectors has been very fast. In the end, projection TVs or large monitors for computers using LCD type projectors have been developed. ought.

Accordingly, a screen corresponding to a rear type imaging apparatus equipped with an LCD projector is required.

Conventional lens-type screens were developed for pixels, but consumers who use digital devices can freely change the settings of pixels and scan lines, resulting in screen distortions, shadows, ghosts, image quality, and color distortions. In the end, LCD traditional screens were needed.

The present invention has been made to solve all of the above problems, and even if the consumer freely changes the resolution setting while maintaining the high resolution, distortion of the screen, ghost phenomenon, ghost phenomenon, damage to the fabric, color It is designed to provide a screen that can be used not only for LCD projector screen but also for CRT type projector screen by expressing clean image quality without any deformation, easy and cheap, medium and large screen.

Still another object of the present invention is to provide cost savings by installing only screens in the same ratio size even when developing devices by changing screen sizes.

1 is a manufacturing process chart of the LCD projector dedicated screen

2 is a raw material mixing and polymerization machine

3 is the size of the microball observed in the fountain

4 is a cast mold and lathe

5 is a surface of the casting mold of the glass material processed in the form of a projection

6 is Gayoung and cooling furnace

♣ Explanation of symbols for the main parts of the drawing

10: polyethylene 11: sample inlet

12: Pigment Additive 13: Microball

14: locking device 15: polymerizer

16: container 17: casting mold

18: base 19: thermometer

20: tank 21: holder

22: cold and hot water 23: tongs

24: heater 25: drain

26: water 27: steam generator

The present invention relates to a high-definition rear screen manufacturing method for LCD projectors for increasing the viewing angle, color tone, and contrast. After making carbon (12) and microballs (SiO2 series) (13) of 50-70 ㎛ size, adjust the color and brightness, and cast them on one or both sides with a frame (17) made of glass processed into protrusions. When the casting mold is removed after cooling in the tank 20, the contents are used as a screen, and the projected image is installed at a predetermined distance on the rear by a projector for projecting the image signal reproduced from a playback device that reproduces a moving image. It is designed to be conveniently used for commercial and home large screens.

Example 1

The polyethylene 10 is forced to steam in the medium pressure (15) to raise to 80 degrees and then put again in the cooling water to dissolve in a liquid state by adding the catalyst benzox peroxide, the medium pressure causing agent.

At this time, it is made of a tissue crystal made to be made into a plate shape, and then put carbon (12) and microballs (SiO2 series) (13) having a size of 50 ~ 70 ㎛ to match the color and brightness, and processed into a glass-like frame It is used as a mold (17) to pour the contents in the form of liquid on the processed surface, and then casts the mold, which is a glass frame (17), which is processed into a protrusion again on it.

In this case, the thickness of the contents is packed to the edge and fixed to the mold edge of the glass frame 17 with a clip 23 to prevent the separation of the contents and even thickness adjustment.

The whole is put in a tank 20 containing water 25, and the first required temperature is 90 degrees for about 10 hours, and the second is 120 degrees with steam for about 2 hours, and then cooled to room temperature, followed by casting mold Remove (17) and its contents become a high-definition rear screen.

Example 2

To adjust the color in Example 1, carbon black (1.1 g), oil max blue Zn (0.015 g), Japan black (0.025 g) and fat sugar (0.55 g) (12) were added to the molten contents (25.5 g). Mix and adjust the amount of additives to emphasize contrast, adjust color temperature or express color well.

In order to increase the brightness, an appropriate amount of optical phosphorus calcium phosphate and 50-70 μm-sized microballs (SiO 2 series) 13 may be added.

As described above, the present invention relates to the manufacture of a high-definition rear screen, and can improve the texture and function of the screen by adjusting the amount of various additives including pigments when using the casting method or in mixing the raw materials in the production. As will be readily appreciated by those skilled in the art, the structure and operation of the present invention can be easily modified, substituted, converted and extended without being limited to the above.

As described above, the present invention melts the polystyrene (10) in the polymerization reactor (15) to make it in a gel state, and then puts carbon (12) to match colors, and calcium phosphate and microballs (SiO2 series) having a size of 50 to 70 μm ( 13) by adding the appropriate amount to adjust the brightness and brightness of the screen to cast on one or both sides with a glass frame (17) processed in the form of a projection, put it in the cooling furnace (25) to cool and then remove the casting mold, the contents of the screen Displayed projected image installed at a certain distance through the projection engine to project the video signal from the playback device to play the video. Even if you change the setting, the screen does not come out of the screen distortion, ghost phenomenon, ghost phenomenon, damage of the fabric, color change, and it is easy and cheap. Inch screen, yet is intended to express by giving a clear picture as well as screens for LCD projectors provide a dedicated screen that is compatible with all available from the projector to the screen of the CRT method.

Still another object of the present invention is to provide cost savings by installing only screens in the same ratio size even when developing devices by changing screen sizes.

Claims (17)

Melt the polyethylene (10) in the polymerization reactor (15) to make a gel state, and then put the carbon (12) to match the color, cast into one or both sides of the glass frame (17) processed into a projection form cooling furnace (24 After the casting mold is removed and the casting mold is cooled, its contents are used as a screen, and the projector is installed at a predetermined distance through the projector to project the image signal reproduced from the playback device to play the video. High-definition rear screen dedicated to LCD projectors The high-definition rear screen for an LCD projector according to claim 1, wherein a poly-based material such as poly methyl metal acrylate, methyl metal acrylate, or polycarbonate is used instead of the polyethylene 10. The high definition rear screen of claim 1, wherein a catalyst is added. The high-definition rear screen according to claim 1, wherein the raw material is in a gel state for producing into a plate shape. The high-definition rear screen for an LCD projector according to claim 1, which is produced by varying angles in a vertical or horizontal manner in casting. The high-definition rear screen for an LCD projector according to claim 1, which is produced by varying angles in entering the cooling furnace (25). According to claim 1, High-definition rear screen, characterized in that to produce a separate equivalent facility in order to increase the size of the screen. A high definition rear screen comprising a light diffusing agent and a microball 13 in order to increase the brightness of the projection light when compounding the raw materials of the screen. High-definition rear screen, characterized in that the mold material of the casting in the processing of the casting. 10. The high-definition rear screen of claim 9, wherein the surface of the glass used as the mold has a predetermined curvature at minute intervals. 10. The high definition rear screen of claim 9, wherein the rear screen is manufactured according to a ratio according to the size of a mold of a casting. A high-definition rear screen, wherein the processed glass surface of the casting mold 17 is a casting method used for one or both sides of the contents. A high-definition rear screen, characterized in that the amount of the pigment (12) is added and adjusted to adjust the contrast in the blending of the raw materials. A high-definition rear screen, characterized in that the amount of the pigment (12) is adjusted in order to adjust the color and color temperature in the blending of the raw materials. High-definition rear screen, characterized in that the mixing of the raw material to adjust the amount of the microball 13 to constantly adjust the viewing angle and the brightness of the entire area of the screen. High-definition rear screen, characterized in that the thickness of the packing for varying the thickness. High-definition rear screen, characterized in that the manufacturing process by adjusting the heating and cooling temperature value or the time it is maintained.