CN103838038A - Liquid crystal display panel, display device and method for manufacturing spacer on substrate - Google Patents

Abstract

The liquid crystal panel, the display device and the method for preparing the spacer on the substrate of the present invention, wherein, the substrate of the liquid crystal panel is provided with a support member for supporting the spacer, and the top of the support member is provided with a concave hole that cooperates with the spacer. Groove, the supporting part supports the spacer through the groove. A display device of the present invention includes the liquid crystal panel of the present invention. The method for preparing a spacer on a substrate of the present invention comprises: setting a supporting part for supporting a spacer on a substrate; setting a groove to cooperate with a spacer on the top of the support part; making the spacer and the groove Cooperate so that the support member supports the spacer through the groove. The technical solution of the present invention effectively prevents the spacer from flowing with the liquid crystal, avoids the uneven distribution of the spacer and the uneven cell thickness caused by the spacer entering the display area, thereby preventing the liquid crystal panel and the display device from appearing dark state light leakage and contrast The phenomenon of reduction can effectively prevent the display quality from deteriorating.

Description

Liquid crystal panel, display device and method for preparing spacer on substrate

technical field

The invention relates to a method specially suitable for manufacturing semiconductors, in particular to a liquid crystal panel, a display device and a method for preparing a spacer on a substrate.

Background technique

Thin Film Transistor Liquid Crystal Display (TFT-LCD for short) has the characteristics of small size, low power consumption, no radiation, and relatively low manufacturing cost, and occupies a dominant position in the current flat panel display device market.

The core component of TFT-LCD, the liquid crystal panel, is formed by aligning the array substrate and the color filter substrate (color filter) and injecting liquid crystal into it. A spacer is usually set between the array substrate and the color filter substrate to maintain the thickness of the cell. .

In the manufacturing process of the liquid crystal panel, controlling the cell thickness of the liquid crystal panel is one of the key technologies. At present, in the preparation process of liquid crystal panels that require a relatively large cell thickness, the method of controlling the cell thickness that is more commonly used is to spray spherical spacers directly on the substrate after the coating and curing of the alignment film. The thickness of the box reaches 20-50 microns. However, at the moment when the vacuum is opened to the atmosphere behind the box, the atmospheric pressure is applied to the upper and lower substrates at the same time. Since the substrates are in a vacuum state, the liquid crystal between the substrates is rapidly diffused outwards due to the action of the atmospheric pressure. In this way, since the liquid crystal and the spherical spacer on the color filter (CF) substrate have been in contact at this time, the liquid crystal will have a certain impact on the spherical spacer during the rapid diffusion process; When the frame glue is thermally cured, the diffusion speed of the liquid crystal is greatly accelerated due to the heat, which will also have an impact on the spherical spacer; these liquid crystal diffusion impacts will make the spherical spacer with weak adhesion follow the direction of liquid crystal flow. Move, the spherical spacer moves with the direction of the liquid crystal flow, resulting in uneven distribution of the spherical spacer; further, if the spherical spacer enters the display area, it will affect the orientation of the liquid crystal, causing light leakage in the dark state, reducing the Contrast, which seriously affects the display quality; further, due to the existence of the black matrix (BM) level difference on the CF substrate, the spherical spacers are easy to accumulate near or under the BM during the movement process, due to the large number of spherical spacers Stacking, the box thickness near or below the BM will be supported by the stacked spherical spacers, resulting in uneven box thickness.

Contents of the invention

The object of the present invention is to provide a liquid crystal panel, a display device, and a method for preparing spacers on a substrate that can effectively prevent spherical spacers from flowing with liquid crystals.

The liquid crystal panel of the present invention includes a substrate and a spacer, the substrate is provided with a support member for supporting the spacer, and the top of the support member is provided with a groove matching the spacer, so The supporting member supports the spacer through the groove.

In the liquid crystal panel of the present invention, wherein the support member is a resin layer covering the surface of the substrate, a plurality of grooves are provided on the top of the resin layer, and the resin layer passes through the plurality of grooves respectively. A plurality of the spacers are supported.

In the liquid crystal panel of the present invention, wherein the supporting member is a plurality of resin platforms distributed on the substrate, the top of the resin platform is provided with the groove, and the plurality of resin platforms respectively pass through the groove A plurality of the spacers are supported.

In the liquid crystal panel of the present invention, the spacer is spherical, the resin platform is truncated, and the volume of the bottom of the resin platform is greater than the volume of the top of the resin platform.

The display device of the present invention includes the liquid crystal panel of the present invention.

The method for preparing a spacer on a substrate of the present invention includes:

Step 1, setting a support member for supporting the spacer on the substrate;

Step 2, setting a groove on the top of the support member to cooperate with the spacer;

Step 3: Matching the spacer with the groove, so that the support component supports the spacer through the groove.

In the method for preparing a spacer on a substrate of the present invention, the third step specifically includes: setting a shielding plate above the groove, and the shielding plate is provided with a plurality of spacers corresponding to the grooves one by one. The drop hole of the shielding plate allows the spacer to drop into the groove through the drop hole of the shielding plate, so that the spacer fits with the groove.

In the method for preparing a spacer on a substrate of the present invention, wherein a first magnetic substance is arranged on the spacer, the step 3 specifically includes: arranging a second magnetic substance under the substrate, the second The positions of the magnetic substances are in one-to-one correspondence with the positions of the grooves, the magnetism of the second magnetic substance is opposite to that of the first magnetic substance, and through the attraction between the first magnetic substance and the second magnetic substance, the The spacer falls and is fixed in the groove.

The method for preparing a spacer on a substrate of the present invention, wherein the supporting member is a resin layer covering the surface of the substrate, and the second step is to arrange a plurality of spacers on the top of the resin layer Fitting groove.

The method for preparing a spacer on a substrate of the present invention, wherein, the supporting member is a plurality of resin platforms distributed on the substrate, and the second step is to set a plurality of resin platforms on the top of the resin platform Grooves for spacer fit.

The technical solution of the present invention effectively prevents the spacers from flowing with the liquid crystal, and at the same time avoids the uneven distribution of the spacers and the uneven cell thickness caused by the spacers entering the display area, thereby preventing the dark state light leakage of the liquid crystal panel and the display device , The phenomenon of reduced contrast can effectively prevent the reduction of display quality.

Description of drawings

Fig. 1 is the structural representation of the first embodiment of the liquid crystal panel of the present invention;

Fig. 2 is the structural representation of the second embodiment of the liquid crystal panel of the present invention;

3 is a schematic diagram of a method for preparing a spacer on a substrate of the present invention;

FIG. 4 is a schematic structural diagram of a spacer.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

Embodiment one

As shown in Figure 1, the embodiment of the liquid crystal panel of the present invention comprises a substrate 1 and a spacer 2, a support member 3 for supporting the spacer 2 is arranged on the substrate 1, and a spacer is arranged on the top of the support member 3 The spacer 2 is matched with the groove 4, and the support member 3 supports the spacer 2 through the groove 4.

In the liquid crystal panel of the present invention, the groove supports the spacer while also limiting the spacer, thus effectively preventing the spacer from flowing with the liquid crystal, avoiding uneven distribution of the spacer and entry of the spacer The display area causes uneven thickness of the box.

In the embodiment of the liquid crystal panel of the present invention, wherein the support member 3 is a resin layer 5 covering the surface of the substrate 1, a plurality of grooves 4 are arranged on the top of the resin layer 5, and the resin layer 5 passes through the plurality of grooves 4 respectively to many A spacer 2 for support.

Embodiment two

As shown in Figure 2, in the embodiment of the liquid crystal panel of the present invention, wherein, the supporting member 3 is a plurality of resin platforms 6 distributed on the substrate 1, the top of the resin platform 6 is provided with a groove 4, and the plurality of resin platforms 6 are respectively A plurality of spacers 2 are supported by grooves 4 .

For a more stable supporting spacer 2, the embodiment of the liquid crystal panel of the present invention, wherein the spacer 2 is spherical, the resin platform 6 is a truncated cone, and the volume of the bottom of the resin platform 6 is greater than that of the top of the resin platform 6. volume.

In the above two embodiments of the liquid crystal panel of the present invention, the substrate 1 may be an array substrate or a color filter substrate.

The display device of the present invention includes the liquid crystal panel of the present invention.

The method for preparing a spacer on a substrate of the present invention includes:

Step 1, setting a support member for supporting the spacer on the substrate;

Step 2, setting a groove on the top of the support member to cooperate with the spacer;

Step 3: Matching the spacer with the groove, so that the support component supports the spacer through the groove.

In the method for preparing a spacer on a substrate of the present invention, the third step specifically includes: setting a shielding plate above the groove, and the shielding plate is provided with a plurality of spacers corresponding to the grooves one by one. The drop hole of the shielding plate allows the spacer to drop into the groove through the drop hole of the shielding plate, so that the spacer fits with the groove.

In the method for preparing a spacer on a substrate of the present invention, wherein a first magnetic substance is arranged on the spacer, the step 3 specifically includes: arranging a second magnetic substance under the substrate, the second The positions of the magnetic substances are in one-to-one correspondence with the positions of the grooves, the magnetism of the second magnetic substance is opposite to that of the first magnetic substance, and through the attraction between the first magnetic substance and the second magnetic substance, the The spacer falls and is fixed in the groove.

The method for preparing a spacer on a substrate of the present invention, wherein the supporting member is a resin layer covering the surface of the substrate, and the second step is to arrange a plurality of spacers on the top of the resin layer Fitting groove.

The method for preparing a spacer on a substrate of the present invention, wherein, the support member is a plurality of resin platforms distributed on the substrate, and the second step is to set a plurality of resin platforms on the top of the resin platform Grooves for spacer fit.

Embodiment three

As shown in Figure 3 and Figure 4, an embodiment of the method for preparing a spacer on a substrate of the present invention includes:

Step 1. A support member 3 for supporting the spacer 2 is provided on the substrate 1. In this embodiment, the support member 3 is a plurality of resin platforms 6 distributed on the substrate;

Step 2: Set a groove 4 on the top of the support member 3 to cooperate with the spacer 2. The groove 4 is an arc groove that cooperates with the spherical spacer 2. In this embodiment, the support member 3 is specifically It is a resin platform 6 , that is, a plurality of grooves 4 matching with spacers 2 are arranged on the top of the resin platform 6 .

Step 3, make the spacer 2 cooperate with the groove 4, so that the support member 3 supports the spacer 2 through the groove 4, specifically: a shielding plate 8 is set above the groove 4, and a shielding plate 8 is set on the shielding plate 8 There are a plurality of drop holes 9 corresponding to the grooves 4 one by one, and the spherical spacer 2 is sprayed on the substrate 1, so that the spacer 2 falls into the groove 4 through the drop holes 9 of the shielding plate, thereby separating The bedding 2 falls into the groove 4 accurately.

In an embodiment of the method for preparing a spacer on a substrate of the present invention, step 3 further includes: disposing a first magnetic substance 10 on the spacer 2, disposing a second magnetic substance 20 below the substrate 1, and disposing the second magnetic substance The position of 20 corresponds to the position of the groove 4 one by one. The magnetism of the second magnetic substance 20 is opposite to that of the first magnetic substance 10. Through the attraction between the first magnetic substance 10 and the second magnetic substance 20, When the spherical spacer 2 is sprayed above 1, the spacer 2 falls and is fixed in the groove 4.

The second magnetic substance 20 in this embodiment is an electromagnet.

The above-mentioned methods of arranging the magnetic substance and arranging the shielding plate can be used separately, or can be used in combination in Step 3.

In other embodiments of the method for preparing a spacer on a substrate of the present invention, the support member 3 can be a resin layer covering the surface of the substrate 1, so that step 2 is to arrange a plurality of spacers on the top of the above-mentioned resin layer. 2 fitting grooves.

Embodiments of the method for preparing a spacer on a substrate of the present invention effectively prevent the spacer from flowing with the liquid crystal, and at the same time avoid the uneven distribution of the spacer and the uneven thickness of the cell caused by the spacer entering the display area, thereby Eliminate the phenomenon of light leakage in the dark state and decrease in contrast in the liquid crystal panel and the display device, and effectively prevent the decrease in display quality.

Embodiments of the method for preparing a spacer on a substrate of the present invention can also ensure that the spacer accurately enters the corresponding groove, thereby effectively improving production efficiency and eliminating defective products.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be It is regarded as the protection scope of the present invention.

Claims (10)

1. A liquid crystal panel, comprising a substrate and a spacer, characterized in that, the substrate is provided with a support member for supporting the spacer, and the top of the support member is provided with a groove, and the support member supports the spacer through the groove. 2. The liquid crystal panel according to claim 1, wherein the supporting member is a resin layer covering the surface of the substrate, the top of the resin layer is provided with a plurality of grooves, and the resin layer The plurality of spacers are respectively supported by the plurality of grooves. 3. The liquid crystal panel according to claim 1, wherein the support member is a plurality of resin platforms distributed on the substrate, the top of the resin platform is provided with the groove, and the plurality of resin platforms The resin platform respectively supports the plurality of spacers through the grooves. 4. The liquid crystal panel according to claim 3, wherein the spacer is spherical, the resin platform is truncated, and the volume of the bottom of the resin platform is greater than the volume of the top of the resin platform . 5. A display device, comprising the liquid crystal panel according to any one of claims 1-4. 6. A method for preparing a spacer on a substrate, comprising: Step 1, setting a support member for supporting the spacer on the substrate; Step 2, setting a groove on the top of the support member to cooperate with the spacer; Step 3: Matching the spacer with the groove, so that the support component supports the spacer through the groove. 7. The method for preparing a spacer on a substrate according to claim 6, wherein the step 3 specifically comprises: setting a shielding plate above the groove, and the shielding plate is provided with a plurality of The drop holes corresponding to the grooves one-to-one allow the spacers to drop into the grooves through the drop holes of the shielding plate, so that the spacers fit into the grooves. 8. The method for preparing a spacer on a substrate according to claim 6, wherein a first magnetic substance is disposed on the spacer, and the step 3 specifically comprises: setting a second magnetic substance under the substrate Two magnetic substances, the position of the second magnetic substance corresponds to the position of the groove one by one, and the magnetism of the second magnetic substance is opposite to that of the first magnetic substance. Due to the mutual attraction of the magnetic substances, the spacer falls and is fixed in the groove. 9. The method for preparing a spacer on a substrate according to claim 6, wherein the support member is a resin layer covering the surface of the substrate, and the step 2 is to place the spacer on the top of the resin layer A plurality of grooves matched with the spacers are provided. 10. The method for preparing a spacer on a substrate according to claim 6, wherein the support member is a plurality of resin platforms distributed on the substrate, and the step 2 is to place the spacer on the resin platform The top is provided with a plurality of grooves that cooperate with the spacers.

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