Manufacturing method of separant and field emission display device

A manufacturing method and technology for display devices, which are applied in the manufacture of discharge tubes/lamps, the manufacture of ships or lead-in wires, and the manufacture of cold cathodes, etc. Installation process, solving the problem of correct placement, optimizing the effect of the structure

Inactive Publication Date: 2009-10-21
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the FED (field emission display) of this structure, the placement of the spacers needs to be done by using the spacer alignment equipment or using the alignment bonding equipment after the electrodes are completed, which will make the device's The production process is relatively complicated, and the alignment of the spacers is difficult, which will have a certain impact on the display screen and increase the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1), at first the plate glass to be made into the cathode electrode is cleaned to obtain a clean substrate surface;

[0019] (2), apply a layer of photosensitive film on the cleaned substrate, expose and develop through a mask to form a pattern, etch the formed substrate with a photosensitive pattern, and then peel off the remaining photosensitive adhesive to form spacers;

[0020] (3) Print a layer of photosensitive paste on the formed pattern, expose and develop through the second mask plate, etch the formed substrate with photosensitive pattern, and then peel off the remaining photosensitive glue to form graphics;

[0021] (4), then need to carry out the making of cathode electrode and gate electrode to the substrate with spacer structure formed;

[0022] (5) The cathode electrode and the gate electrode are completed by two evaporation or sputtering metal processes, and then the photosensitive glue is used to form the cathode electrode and the gate electrode through...

Embodiment 2

[0026] A method for manufacturing a spacer, comprising the steps of:

[0027] Flat glass is prepared with two layers of different heights, with the upper layer structure acting as a spacer.

[0028] a. Clean the flat glass used to make cathode electrodes; use cleaning methods such as ultrasonic waves, pure water, and two fluids.

[0029] b. Coat a layer of photosensitive adhesive on the glass, which is required not to be etched by the glass etching solution. Remove excess photoresist by exposure, and perform etching, requiring the use of glass etching solution for etching, forming spacers and stripping off the remaining photoresist;

[0030] c. Coating a layer of photoresist on the structure, performing a second exposure through a mask plate, and peeling off the remaining photoresist after exposure and etching.

[0031] A method for manufacturing a field emission display device, comprising the following steps:

[0032] The lower substrate glass with cathode electrodes and s...

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PUM

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Abstract

The present invention relates to the production technology of field emission device, especially the manufacturing method of spacer and field emission display device, it is characterized in that, comprises the following steps, a, clean the flat glass that makes cathode electrode; b, claim 1 to 4 Make spacers on the glass surface by any one of the methods; c, make the cathode electrode contact surface on the glass forming the spacers; d, make the cathode electrode and grid electrode on the glass; e, make the cathode electrode on the cathode electrode The emitting material is sealed with another glass substrate coated with fluorescent powder, black stripes, and anode electrodes. The invention avoids the complex installation process when making spacers, solves the problem of inaccurate positioning of spacers and the influence of spacers on image quality, and solves the original discrete spacer assembly problem, reducing the The difficulty of the process makes the performance of the device more reliable.

Description

technical field [0001] The invention relates to a production process of a field emission device, especially a manufacturing method of a spacer and a field emission display device. Background technique [0002] Field electron emission, also known as cold cathode electron emission, relies on a strong external electric field to reduce the surface barrier of an object. A large number of electrons in the emitter escape through the surface barrier due to the tunnel effect to form field electron emission. Moreover, it has no time delay and low power consumption, so field emission is a very efficient way of electron emission. When flat panel displays such as LCD and PDP are gradually replacing CRT in the market, field emission display devices, which are similar to CRT in light emitting principle, have better performance, and are cheaper in mass production than current flat panels, are now attracting more and more people's attention. [0003] However, there are still some difficult ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H01J9/24H01J9/02H01J9/00H01J31/12
Inventor张莉
OwnerIRICO