TWI473067B - Display apparatus and display panel - Google Patents

Description

Display device and display panel

The present invention relates to a display device and a display panel, and more particularly to a display device and a display panel having different electrode spacings.

In response to the demand of the consumer, display-related operators have invested in the development of blue phase liquid crystal displays with fast response characteristics. Taking a blue phase liquid crystal material as an example, a transverse electric field is generally required to operate to have the function of a light valve. At present, the electrode design of the IPS (In-Plane Switching) display module has been used to drive blue phase liquid crystal molecules in a blue phase liquid crystal display.

Although blue phase liquid crystal has the advantages of fast response time and optical isotropicity, it has the disadvantage of high driving voltage, and its driving voltage usually needs to be as high as 55 volts. Further, in the blue phase liquid crystal display panel having the planar conversion type pixel unit, the area occupied by the strip pattern is the dark area D, so that the transmittance of the blue phase liquid crystal display panel is not good. Therefore, there is still room for improvement in the design of a display device or a display panel using a blue phase liquid crystal as a display medium.

The invention provides a display device and a display panel thereof, which utilize different electrode spacings to generate a good transmittance and solve the color shift problem thereof.

The invention provides a display device comprising a display panel and a light source module. The foregoing display panel includes a first substrate and a second substrate. And a display medium. The first substrate has a plurality of first electrodes and a plurality of second electrodes arranged alternately with each other, and each of the first electrodes has a first spacing between the adjacent second electrodes. The second substrate is located on the opposite side of the first substrate, and the second substrate has a plurality of third electrodes and a plurality of fourth electrodes arranged alternately with each other, wherein each of the third electrodes and the adjacent fourth electrode has a The second pitch, and the second pitch is not equal to the first pitch. The display medium is located between the first substrate and the second substrate.

The present invention further provides a display panel having at least one first pixel unit, at least one second pixel unit, and at least one third pixel unit. The first pixel unit, the second pixel unit and the third pixel unit respectively comprise a first substrate, a second substrate, a color filter layer and a display medium. The foregoing first substrate has a plurality of first electrodes and a plurality of second electrodes arranged alternately with each other, wherein each of the first electrodes and the adjacent second electrodes have an equidistant spacing therebetween.

Based on the above, in the display device and the display panel of the present invention, different electrode groups have different pitches to generate electric fields of different sizes. In the display device, different sized electric fields generated by the different pitches are used to drive different light source groups to improve the transmittance and color shift of the display device. In addition, in the display panel of the present invention, different pixel units generated by the different pitches are used to drive different pixel units, and the effect of improving the transmittance of the display panel and improving the color shift problem can be achieved.

The above described features and advantages of the present invention will be more apparent from the following description.

First embodiment

1 is a perspective view of a display device in accordance with an embodiment of the present invention. Referring to FIG. 1 , the display device 100 includes a display panel 110 and a light source module 120 . The foregoing display panel 110 includes a first substrate 112, a second substrate 114, and a display medium 116. The second substrate 114 is located on the opposite side of the first substrate 112 , and the display medium 116 is located between the first substrate 112 and the second substrate 114 . The light source module 120 is located at one side of the display panel 110. In this embodiment, the light source module 120 is located on the side close to the first substrate 112, but the light source module 120 may also be located on the side close to the second substrate 114.

2A is a partial top view of the first substrate 112 of FIG. 1. Referring to FIG. 1 and FIG. 2A simultaneously, the first substrate 112 has a plurality of first electrodes 112a and a plurality of second electrodes 112b disposed alternately with each other, and each of the first electrodes 112a and the adjacent second electrodes 112b has A first spacing d1. 2B is a partial top view of the second substrate 114 of FIG. 1. Referring to FIG. 1 and FIG. 2B simultaneously, the second substrate 114 has a plurality of third electrodes 114a and a plurality of fourth electrodes 114b arranged alternately with each other, wherein each of the third electrodes 114a and the adjacent fourth electrode 114b There is a second spacing d2 between the two, and the second spacing d2 is not equal to the first spacing d1.

Referring to FIG. 1 , the light source module 120 includes a first wavelength source group 122 , a second wavelength source group 124 , and a third wavelength source group 126 . When the display panel 110 presents a display screen, the first, second, and third wavelength light source groups 122, 124, and 126 are sequentially illuminated. When the light source mode When the first wavelength source group 122 of the group 120 is illuminated, the display medium 116 is driven by the first electrode 112a and the second electrode 112b on the first substrate 112. When the second wavelength light source group 124 of the light source module 120 is illuminated, the display medium 116 is driven by the third electrode 114a and the fourth electrode 114b on the second substrate 114.

After the voltage is applied to the first electrode 112a and the second electrode 112b, the first pitch d1 affects the magnitude of the electric field generated between the first electrode 112a and the second electrode 112b. Similarly, the second pitch d2 affects the magnitude of the electric field generated between the third electrode 114a and the fourth electrode 114b. In this embodiment, the first pitch d1 and the second pitch d2 are not equal, that is, the magnitude of the electric field generated between the first electrode 112a and the second electrode 112b is generated between the third electrode 114a and the fourth electrode 114b. The electric field is different in size. In the present embodiment, different wavelengths of the light source group are driven by electric fields of different sizes to improve the problem that the display device 100 produces a decrease in transmittance when a single voltage is applied, and to avoid a color shift condition generated at a high voltage.

3 is a schematic diagram of a pixel circuit of the display device of FIG. 1. In detail, the first electrode 112a of the embodiment is electrically connected to a transistor T, and the second electrode 112b is electrically connected to a common electrode line CL. One end of the transistor T is connected to the scanning line SL, and the other end is connected to the data line DL. Here, the transistor T can be used as a switching element for writing voltage information to the first electrode 112a, and the type of the transistor T can be a bottom gate type thin film transistor or a top gate type thin film transistor. When the transistor T is turned on to write voltage information to the first electrode 112a, the first electrode 112a is applied with a voltage, and its voltage value is different from the voltage value of the common electrode line CL, so that the first electrode There is a voltage difference between 112a and the second electrode 112b. At this time, an electric field is generated between the first electrode 112a and the second electrode 112b to drive the display medium 116. Next, when the first wavelength light source group 122 in the light source module 120 is illuminated, the first electrode 112a and the second electrode 112b on the first substrate 112 drive the display medium 116 in the manner described above.

In the present embodiment, the third electrode 114a and the fourth electrode 114b on the second substrate 114 drive the display medium 116 in the same manner as the first electrode 112a and the second electrode 112b. The third electrode 114a is also electrically connected to a transistor, and the fourth electrode 114b is electrically connected to a common electrode line. When the second wavelength light source group 124 in the light source module 120 is illuminated, the third electrode 114a and the fourth electrode 114b on the second substrate 114 drive the display medium 116 in the manner described above.

In the present embodiment, when the first wavelength source group 122 is illuminated, the display medium 116 is driven by the first electrode 112a and the second electrode 112b on the first substrate 112. When the second wavelength light source group 124 of the light source module 120 is illuminated, the display medium 116 is driven by the third electrode 114a and the fourth electrode 114b on the second substrate 114. After the first wavelength source group 122 and the second wavelength source group 124 are illuminated, then the third wavelength source group 126 of the light source module 120 is illuminated by the first electrode 112a on the first substrate 112 and The second electrode 112b drives the display medium 116, or the display medium 116 is driven by the third electrode 114a and the fourth electrode 114b on the second substrate 114.

In detail, the wavelengths of the respective wavelength light source groups 122, 124, and 126 of the light source module 120 are not the same. Here, the first wavelength source group 122 The wavelength is greater than the wavelength of the second wavelength source set 124, and the wavelength of the second wavelength source set 124 is greater than the wavelength of the third wavelength source set 126. For example, the first wavelength source group 122 emits red light, the second wavelength source group 124 emits green light, and the third wavelength source group 126 emits blue light. That is to say, the display device 100 of the present embodiment uses the color sequential method to rapidly switch the images of the three colors of red, green, and blue on the time axis to produce the effect of color mixing, and is generated by using different electrode spacings d1 and d2. Different sized electric fields drive the display medium 116 to which the different wavelengths of light source groups 122, 124, 126 correspond.

Further, the first pitch d1 between the first electrode 112a and the adjacent second electrode 112b is smaller than the second pitch d2 between the third electrode 114a and the adjacent fourth electrode 114b. In other words, in the present embodiment, the first wavelength source group 122 having the longest wavelength is driven by the first pitch d1 having a small pitch between the two electrodes 112a, 112b, so that the interval between the two electrodes 114a, 114b is large. The second pitch d2 drives the second wavelength source set 124 of the second wavelength. In this embodiment, the difference between the first pitch d1 and the second pitch d2 is greater than or equal to 0.2 micrometers; in another embodiment, the difference between the first pitch d1 and the second pitch d2 is greater than or equal to 0.5 micrometers, and less than or equal to 5 micrometers; in a preferred embodiment, the difference between the first pitch d1 and the second pitch d2 is greater than or equal to 0.8 micrometers and less than or equal to 1.5 micrometers, for example, the difference between the first pitch d1 and the second pitch d2 is about 1 Micron.

Referring to FIG. 2A and FIG. 2B again, in the present embodiment, the line width w of the first electrode 112a and the second electrode 112b is the same, and the line width w of the third electrode 114a and the fourth electrode 114b is also the same. Be explained. of course, The line width w of the first electrode 112a and the line width w of the second electrode 112b may not be exactly the same. Similarly, the line width w of the third electrode 114a and the line width w of the fourth electrode 114b may not be completely the same. Those skilled in the art may make design changes to the electrode line widths to meet the needs of practical applications. In addition, as shown in FIG. 2A and FIG. 2B , the first spacing d1 and the second spacing d2 are respectively an equidistant spacing. That is, the magnitude of each of the first pitches d1 between the first electrode 112a and the second electrode 112b is equal, and the size of each of the second pitches d2 between the third electrode 114a and the fourth electrode 114b is equal. All are equal.

Figure 4 is a partial cross-sectional view of the display device of Figure 1. Referring to FIG. 4, the first electrode 112a and the second electrode 112b are alternately disposed on the first substrate 112, and the third electrode 114a and the fourth electrode 114b are alternately disposed on the second substrate 114. The first electrode 112a and the second electrode 112b are located on the same plane, and the third electrode 114a and the fourth electrode 114b are located on the same plane. In other words, the present embodiment is described by taking the display device 100 as an in-plane switching (IPS) type display device 100 as an example. Here, the first electrode 112a, the second electrode 112b, the third electrode 114a, and the fourth electrode 114b may be transparent electrodes, and the material thereof includes a metal oxide such as indium tin oxide, indium zinc oxide, aluminum tin oxide. , aluminum zinc oxide, indium antimony zinc oxide, or other suitable metal oxide, or a stacked layer of at least two of the foregoing.

Further, in the present embodiment, the display medium 116 is optically isotropic when it is not applied with an electric field. According to this embodiment, the display medium 116 described above includes a blue phase liquid crystal, which is, for example, a polymer. Polymer-stabilized blue phase liquid crystals or polymer-stabilized isotropic phase liquid crystals. In the present embodiment, the display medium 116 is driven by the formation of an electric field to switch the display medium 116 between optical isotropic and optical anisotropy so that the display medium 116 functions as a light valve.

As shown in FIG. 4, when the first wavelength source group 122 of the light source module 120 is illuminated, a transverse electric field is formed between the first electrode 112a and the second electrode 112b on the first substrate 112. E1 to drive the display medium 116. When the second wavelength light source group 124 of the light source module 120 is illuminated, another transverse electric field E2 is formed between the third electrode 114a and the fourth electrode 114b on the second substrate 114 to drive the display medium 116. That is to say, in the present embodiment, the direction of the electric field is mainly distributed in the direction parallel to the first substrate 112 and the second substrate 114, and since the electrode spacings d1 and d2 are not the same, the magnitudes of the generated transverse electric fields E1 and E2 are obtained. It is not the same.

Second embodiment

FIG. 5 is a perspective view of a display panel in accordance with an embodiment of the present invention. The display panel 200 has at least one first pixel unit 220, at least one second pixel unit 240, and at least one third pixel unit 260. In FIG. 5, the display panel 200 includes a first pixel unit 220, a second pixel unit 240, and a third pixel unit 260 as an example, but the present invention does not limit the first pixel unit. 220. The number of second pixel units 240 and third pixel units 260. First pixel unit The second pixel unit 240 and the third pixel unit 260 respectively include a first substrate 222, a second substrate 224, a color filter layer 226, and a display medium 228.

The first substrate 222 has a plurality of first electrodes 222a and a plurality of second electrodes 222b arranged alternately with each other, wherein each of the first electrodes 222a and the adjacent second electrodes 222b have an equidistant spacing d3. The second substrate 224 is located on the opposite side of the first substrate 222 , and the color filter layer 226 is located on the first substrate 222 or the second substrate 224 . In the embodiment, the color filter layer 226 is disposed on the second substrate 224, but the color filter layer 226 may also be located on the first substrate 222.

The display medium 228 is located between the first substrate 222 and the second substrate 224. The equidistant spacing d3 between the first electrode 222a and the second electrode 222b of the first pixel unit 220 and the equidistant spacing d4 between the first electrode 222a and the second electrode 222b of the second pixel unit 240 are not equal.

The equidistant spacing d3 between the first electrode 222a and the second electrode 222b affects the magnitude of the electric field between the two electrodes 222a and 222b. Since the equidistant spacing d3 and the equidistant spacing d4 are not equal, when the first pixel 222a and the second electrode 222b corresponding to the first pixel unit 220 and the second pixel unit 240 are respectively driven, both An electric field of a different size is generated. In the present embodiment, by driving different pixel units 220, 240, and 260 with different electric fields, it is possible to improve the problem that the display panel 200 is reduced in transmittance when a single voltage is applied, and to avoid a color shift condition generated at a high voltage.

6 is a schematic diagram of a pixel circuit of the display panel of FIG. 5. The pixel circuit of this embodiment is similar to the pixel circuit of the embodiment of FIG. 1, and thus the phase is adopted. The same reference numerals are used to denote the same or similar elements. In detail, the first electrode 222a of the embodiment is electrically connected to a transistor T, and the second electrode 222b is electrically connected to a common electrode line CL. One end of the transistor T is connected to the scanning line SL, and the other end is connected to the data line DL. Here, the transistor T can be used as a switching element for writing voltage information to the first electrode 222a. For example, when the transistor T is turned on to write voltage information to the first electrode 222a, the first electrode 222a is applied with a voltage, and its voltage value is different from the voltage value of the common electrode line CL, so that the first electrode 222a and There is a voltage difference between the second electrodes 222b. At this time, an electric field is generated between the first electrode 222a and the second electrode 222b to drive the display medium 228.

Referring to FIG. 5 again, the color filter layer 226 of the second substrate 224 has a red filter pattern 226a, a blue filter pattern 226b, and a green filter pattern 226c, so that the first pixel unit 220, The second pixel unit 240 and the third pixel unit 260 are a red pixel unit 220a, a green pixel unit 240a, and a blue pixel unit 260a, respectively. In other words, in the present embodiment, the second substrate 224 is a color filter (CF) substrate as an example. As described above, the color filter layer 226 may also be co-located on the first substrate 222 with the first electrode 222a and the second electrode 222b. In this case, the first substrate 222 may be color filter integrated on the thin film transistor array (Color filter) On Array, COA) substrate, or thin film transistor array integrated on Array on Color filter (AOC) substrate. However, the invention is not limited to the above.

In this embodiment, the equidistant spacing d3 between the first electrode 222a and the second electrode 222b of the red pixel unit 220a is smaller than the green pixel unit. An equidistant spacing d4 between the first electrode 222a and the second electrode 222b of 240a. In other words, in the present embodiment, the first electrode 222a and the second electrode 222b having a small equidistant spacing d3 are used to drive the red pixel unit 220a having a longer wavelength, and the first electrode 222a having a larger equidistant spacing d4 is used. The green pixel unit 240a having the second wavelength is driven by the second electrode 222b.

In addition, the equidistant spacing d4 between the first electrode 222a and the second electrode 222b of the green pixel unit 240a is smaller than the equidistant spacing d5 between the first electrode 222a and the second electrode 222b of the blue pixel unit 260a. In other words, the equidistant spacing d3 between the first electrode 222a and the second electrode 222b corresponding to the red pixel unit 220a is smaller than the equidistant spacing d4 between the first electrode 222a and the second electrode 222b corresponding to the green pixel electrode. And the equidistant spacing d4 between the first electrode 222a and the second electrode 222b corresponding to the green pixel unit 240a is smaller than the equidistant spacing d5 between the first electrode 222a and the second electrode 222b of the blue pixel unit 260a . That is, the equidistant spacing d5 is greater than the equidistant spacing d4, and the equidistant spacing d4 is greater than the equidistant spacing d3.

In the above, the relationship between the equidistant spacing d4 and the equidistant spacing d5 is not limited thereto. In another embodiment not shown, the equidistant between the first electrode 222a and the second electrode 222b of the green pixel unit 240a. The pitch d4 is equal to the equidistant spacing d5 between the first electrode 222a and the second electrode 222b of the blue pixel unit 260a. In addition, the equidistant spacing d3 between the first electrode 222a and the second electrode 222b of the first pixel unit 220 (red pixel unit 220a) and the first electrode of the second pixel unit 240 (green pixel unit 240a) The difference between the equidistant spacing d4 between the second electrode 222b and the second electrode 222b is greater than or equal to 0.2 micrometers; in another embodiment, the equidistant spacing d3 and the equidistant spacing d4 The difference between the two is greater than or equal to 0.5 micrometers and less than or equal to 5 micrometers; in a preferred embodiment, the difference between the equidistant spacing d3 and the equidistant spacing d4 is greater than or equal to 0.8 micrometers and less than or equal to 1.5 micrometers, for example, etc. The difference between the distance d3 and the equidistant distance d4 is about 1 micrometer.

Referring to FIG. 5 again, in the embodiment, the line width w1 of the first electrode 222a and the second electrode 222b is the same, but the line width w1 of the first electrode 222a and the second electrode 222b may not be completely the same. . For example, a portion of the first electrode 222a may have a wider line width, or a portion of the second electrode 222b may have a wider line width. Those skilled in the art may make design changes to the electrode line widths to meet practical applications. Time needs.

Figure 7 is a partial cross-sectional view of the display panel of Figure 5. As shown in FIG. 7, the first electrode 222a and the second electrode 222b are alternately disposed on the first substrate 222, and the first electrode 222a and the second electrode 222b are located on the same plane. In other words, in the embodiment, the display panel is an In-Plane Switching (IPS) type display panel. When the first electrode 222a and the second electrode 222b have a transverse electric field E3, The display medium 228 is driven.

Further, in the present embodiment, the display medium 228 is optically isotropic when it is not applied to an electric field. According to the present embodiment, the display medium 228 described above includes a blue phase liquid crystal, which is, for example, a polymer-stabilized blue phase liquid crystals or a polymer-stabilized isotropic phase liquid crystal (polymer-stabilized isotropic phase). Liquid crystals) and so on. In the present embodiment, the display medium 228 is driven by the formation of an electric field to make the display medium 228 optically isotropic. Switching between optical anisotropy causes display medium 228 to function as a light valve.

Figure 8 is a graph showing driving voltage-transmission curves (V-T curves) of the display device of Figure 1. Please refer to FIG. 8. Curves A, B, and C in FIG. 8 are driven by the same electrode spacing when the first wavelength source group 122, the second wavelength source group 124, and the third wavelength source group 126 are illuminated, respectively. The relationship between the driving voltage of the medium and the transmittance. As can be seen from the graph of Fig. 8, when the display medium is driven at the same electrode pitch, the curve A is significantly offset from the curve B and the curve C. And at the same transmittance, the driving voltage of curve A is significantly higher than curve B and curve C.

Next, please refer to the curve D. The curve D is a relationship between the driving voltage and the transmittance of the electrode driving display medium which is changed to the electrode spacing of the first wavelength when the first wavelength source group 122 is lit. Comparing the curve A with the curve D, it can be seen that when the display medium is driven by the electrode with a smaller electrode spacing, the curve D will be more consistent with the curve B and the curve C. Therefore, it can be understood from the comparison of the curve A and the curve D in FIG. 8 that changing the electric field intensity of the electrode by using different electrode spacings can effectively adjust the relationship between the driving voltage and the transmittance, and can increase the transmittance and avoid A color shift problem occurs at high driving voltages.

As described above, in the embodiment of FIG. 1, the first electrode 112a and the second electrode 112b drive the first wavelength source group 122, and the third electrode 114a and the fourth electrode 114b are used to drive the second source wavelength group. 124. Since the first pitch d1 between the first electrode 112a and the second electrode 112b is smaller than the second pitch d2 between the third electrode 114a and the fourth electrode 114b, the color shift at a high driving voltage can be improved and adjusted thereby. Case.

In summary, in the display device of the present invention, different pitches between different electrode groups are used to generate electric fields of different sizes, and different light source groups are driven by electric fields of different sizes to improve the transmittance of the display device and The problem of color shift. In addition, in the display panel of the present invention, different pitches between different electrode groups are used to generate electric fields of different sizes, and different pixel units are driven by electric fields of different sizes, and the transmittance of the display panel can also be improved. And the effect of improving the color cast problem.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧ display device

110,200‧‧‧ display panel

112, 222‧‧‧ first substrate

112a, 222a‧‧‧ first electrode

112b, 222b‧‧‧ second electrode

114, 224‧‧‧ second substrate

114a‧‧‧ third electrode

114b‧‧‧fourth electrode

116, 228‧‧‧ Display media

120‧‧‧Light source module

122‧‧‧First wavelength source group

124‧‧‧second wavelength source group

126‧‧‧ Third wavelength source group

220‧‧‧ first pixel unit

220a‧‧‧Red pixel unit

226‧‧‧Color filter layer

226a‧‧‧Red filter pattern

226b‧‧‧Blue filter pattern

226c‧‧‧Green filter pattern

240‧‧‧Second pixel unit

240a‧‧‧Green pixel unit

260‧‧‧ third pixel unit

260a‧‧‧Blue pixel unit

D1‧‧‧first spacing

D2‧‧‧second spacing

w, w1‧‧‧ line width

D3, d4, d5‧‧‧ equidistant spacing

T‧‧‧O crystal

DL‧‧‧ data line

SL‧‧‧ scan line

CL‧‧‧Common electrode line

E1, E2, E3‧‧‧ transverse electric field

1 is a perspective view of a display device in accordance with an embodiment of the present invention.

2A is a partial top view of the first substrate of FIG. 1.

2B is a partial top view of the second substrate of FIG. 1.

3 is a schematic diagram of a pixel circuit of the display device of FIG. 1.

Figure 4 is a partial cross-sectional view of the display device of Figure 1.

FIG. 5 is a perspective view of a display panel in accordance with an embodiment of the present invention.

6 is a schematic diagram of a pixel circuit of the display panel of FIG. 5.

Figure 7 is a partial cross-sectional view of the display panel of Figure 5.

Figure 8 is a graph showing driving voltage-transmission curves (V-T curves) of the display device of Figure 1.

100‧‧‧ display device

110‧‧‧ display panel

112‧‧‧First substrate

112a‧‧‧first electrode

112b‧‧‧second electrode

D1‧‧‧first spacing

114‧‧‧second substrate

114a‧‧‧ third electrode

114b‧‧‧fourth electrode

116‧‧‧Display media

120‧‧‧Light source module

122‧‧‧First wavelength source group

124‧‧‧second wavelength source group

126‧‧‧ Third wavelength source group

Claims (22)

A display device comprising: a display panel comprising: a first substrate having a plurality of first electrodes and a plurality of second electrodes arranged alternately with each other, wherein each of the first electrodes and the adjacent one The second electrodes have a first spacing therebetween; a second substrate is located on the opposite side of the first substrate, and the second substrate has a plurality of third electrodes and a plurality of fourth electrodes arranged alternately with each other, wherein each a third electrode has a second pitch between the adjacent fourth electrodes, and the second pitch is not equal to the first pitch; and a display medium is disposed between the first substrate and the second substrate a light source module is disposed on one side of the display panel, the light source module includes a first wavelength light source group, a second wavelength light source group, and a third wavelength light source group, and the first, second, and third The wavelength light source group is sequentially illuminated, wherein when the first wavelength light source group of the light source module is illuminated, the display is driven by the first electrodes and the second electrodes on the first substrate Medium, and when the light source module When the wavelength of the second light source group is lit by the third electrodes on the second substrate, and the plurality of the fourth electrodes to drive the display medium. The display device of claim 1, wherein when the third wavelength light source group of the light source module is illuminated, the first electrodes and the second electrodes on the first substrate are used To drive the display medium or The display medium is driven by the third electrodes and the fourth electrodes on the second substrate. The display device of claim 1, wherein the wavelengths of the first wavelength source groups are greater than the wavelengths of the second wavelength source groups, and the wavelengths of the second wavelength source groups are greater than the third wavelengths. The wavelength of the source group. The display device of claim 3, wherein the first spacing between each of the first electrodes and the adjacent second electrode is less than between each of the third electrodes and the adjacent fourth electrode The second spacing. The display device of claim 1, wherein a difference between the first pitch and the second pitch is greater than or equal to 0.2 micrometers. The display device of claim 1, wherein a difference between the first pitch and the second pitch is greater than or equal to 0.5 micrometers and less than or equal to 5.0 micrometers. The display device of claim 1, wherein a difference between the first pitch and the second pitch is greater than or equal to 0.8 micrometers and less than or equal to 1.5 micrometers. The display device of claim 1, wherein the line widths of the first electrodes are the same as the line widths of the second electrodes. The display device of claim 1, wherein the line widths of the first electrodes are not exactly the same as the line widths of the second electrodes. The display device of claim 1, wherein when the first wavelength source group of the light source module is illuminated, between the first electrodes and the second electrodes on the first substrate Have a transverse electric field to Driving the display medium, and when the second wavelength light source group of the light source module is illuminated, a third electric field between the third electrodes and the fourth electrodes on the second substrate is driven to drive the Display media. The display device of claim 1, wherein the display medium has optical isotropic properties when an electric field is not applied. The display device of claim 1, wherein the first pitch and the second pitch are respectively an equidistant pitch. A display panel having at least a first pixel unit, at least a second pixel unit, and at least a third pixel unit, wherein the first pixel unit, the second pixel unit, and the third pixel The unit includes: a first substrate having a plurality of first electrodes and a plurality of second electrodes arranged alternately with each other, wherein each of the first electrodes and the adjacent second electrodes have an first a distance between the second substrate and the opposite side of the first substrate; a color filter layer on the first substrate or the second substrate; and a display medium on the first substrate and the first Between two substrates, wherein the first pixel unit is a red pixel unit, the second pixel unit is a green pixel unit, and the third pixel unit is a blue pixel unit, the green pixel An equidistant spacing between the first electrode and the second electrode of the unit is less than or equal to an equidistant spacing between the first electrode and the second electrode of the blue pixel unit. The display panel of claim 13, wherein the display panel The color filter layer has a red filter pattern, a blue filter pattern, and a green filter pattern. The display panel of claim 14, wherein an equidistant spacing between the first electrode and the second electrode of the red pixel unit is smaller than the first electrode and the second of the green pixel unit Equidistant spacing between electrodes. The display panel of claim 13, wherein an equidistant spacing between the first electrode and the second electrode of the first pixel unit and the first electrode of the second pixel unit The difference between the equidistant spacings between the second electrodes is greater than or equal to 0.2 microns. The display panel of claim 13, wherein an equidistant spacing between the first electrode and the second electrode of the first pixel unit and the first electrode of the second pixel unit The difference between the equidistant spacings between the second electrodes is greater than or equal to 0.5 microns and less than or equal to 5.0 microns. The display panel of claim 13, wherein an equidistant spacing between the first electrode and the second electrode of the first pixel unit and the first electrode of the second pixel unit The difference between the equidistant spacings between the second electrodes is greater than or equal to 0.8 microns and less than or equal to 1.5 microns. The display panel of claim 13, wherein the line widths of the first electrodes are the same as the line widths of the second electrodes. The display panel of claim 13, wherein the line widths of the first electrodes are not exactly the same as the line widths of the second electrodes. The display panel of claim 13, wherein when the first electrodes and the second electrodes have a transverse electric field, The display medium is driven. The display panel of claim 13, wherein the display medium has optical isotropic properties when an electric field is not applied.