Source: http://www.google.com/patents/US20100134734?dq=7,468,661
Timestamp: 2017-12-15 16:24:30
Document Index: 300360923

Matched Legal Cases: ['art 1113', 'art 1112', 'art 1112', 'art 1113', 'art 1113', 'art 1112']

Patent US20100134734 - Substrate for a display apparatus - Google Patents
A substrate for a display apparatus includes a plate, a switching element, an insulating layer, and a partition wall. The plate has a reflection region on which a light that is provided from an exterior to the substrate is reflected and a transmission region through which a light generated from a backlight...http://www.google.com/patents/US20100134734?utm_source=gb-gplus-sharePatent US20100134734 - Substrate for a display apparatus
Publication number US20100134734 A1
Application number US 12/698,993
Also published as CN1637563A, CN100428014C, US7688410, US8130349, US20050146658, US20080036949
Publication number 12698993, 698993, US 2010/0134734 A1, US 2010/134734 A1, US 20100134734 A1, US 20100134734A1, US 2010134734 A1, US 2010134734A1, US-A1-20100134734, US-A1-2010134734, US2010/0134734A1, US2010/134734A1, US20100134734 A1, US20100134734A1, US2010134734 A1, US2010134734A1
Inventors Jae-hyun Kim, Won-Sang Park, Sang-Woo Kim, Sung-Eun Cha, Jae-Young Lee, Jae-Ik Lim
US 20100134734 A1
a domain forming member disposed on at least one of the lower substrate and the upper substrate to control an alignment of liquid crystals of the liquid crystal layer,
wherein the domain forming member is disposed in an area corresponding to the transmission region, and is not disposed in an area corresponding to the reflection region.
2. The display panel of claim 1, wherein the domain forming member includes a protrusion formed on the lower substrate.
4. The display panel of claim 3, wherein the domain forming member further includes a recess formed on the upper substrate and disposed at a center of each of the transmission portions.
7. The display panel of claim 6, wherein the insulating layer is removed in the transmission region, and the domain forming member includes same material as the insulating layer.
8. The display panel of claim 6, wherein the domain forming member includes a protrusion formed on the transmission electrode and the protrusion is formed from the same layer as the insulation layer.
10. The display panel of claim 1, wherein the display panel further comprises a color filter formed on the upper substrate.
11. The display panel of claim 10, wherein the domain forming member includes a recess formed on the color filter.
12. The display panel of claim 11, wherein a depth of the recess is substantially equal to a thickness of the color filter or less than a thickness of the color filter.
13. The display panel of claim 1, wherein the domain forming member includes a protrusion formed on the lower substrate and a recess formed on the upper substrate corresponding the protrusion.
14. The display panel of claim 1, wherein the reflection electrode is formed on the transmission electrode.
15. The display panel of claim 14, wherein the transmission electrode is electrically connected to the switching element through the reflection electrode.
16. A method of manufacturing a display panel comprising:
forming a transmission electrode in the transmission region to be electrically connected to the switching element; and
forming a reflection electrode in the reflection region;
patterning the color filter to form an recess;
disposing the upper substrate having the color filter with the recess over the lower substrate having the transmission electrode such that the recess of the color filter is disposed at a center of each of the transmission portions; and
18. The method of claim 16, wherein the protrusion is extended to reach a boundary of the transmission region so that the transmission portions are completely isolated from each other
19. The method of claim 16, wherein a height of the protrusion is no more than a thickness of the insulating layer of the reflection region.
20. The method of claim 16, wherein said patterning the insulating layer to form the protrusion is patterning the insulating layer to remove the insulating layer of the transmission region except for a region corresponding to the protrusion.
The thin film transistor 1119 is in the reflection region 1128 of the first plate 1120, and includes a source electrode 1118 a, a gate electrode 1118 b, a drain electrode 1118 c and a semiconductor layer pattern. A driving integrated circuit (not shown) applies a data voltage to the source electrode 1118 a through the source line 1118 a′, and applies a gate signal to the gate electrode 1118 b through the gate line 1118 b′.
The gate insulating layer 1126 is formed over the first plate 1120 having the gate electrode 1118 b so that the gate electrode 1118 b is electrically insulated from the source electrode 1118 a and the drain electrode 1118 c. The gate insulating layer 1126 may include silicon oxide (SiOx), silicon nitride (SiNx), etc.
The organic layer 1114 defines the transmission window 1129 a, and the transmission window 1129 a is opened so that the lower substrate 1180 corresponding to the reflection region 1128 has different height from the lower substrate 1180 corresponding to the transmission window 1129 a. Alternatively, a portion of the organic layer 1114 may remain in the transmission window 1129 a.
The organic layer 1114 includes a protruded portion 1115 and an embossed portion. The protruded portion 1115 corresponds to the spacer 1110 so that an alignment of the liquid crystal layer 1108 is controlled. The embossed portion is in the reflection region 1128 to improve a reflectivity of the second pixel electrode part 1113.
Referring to FIG. 9H, the green color filter portion 1104 b and the blue color filter portion 1104 c shown in FIG. 8 are formed on the second plate 1100 having the black matrix 1102 and the red color filter portion 1104 a.
Referring to FIG. 9I, the transparent conductive material is deposited on the second plate 1100 having the black matrix 1102 and the color filter 1104 to form the common electrode 1106.
The color filter 1104 is formed in the display region 1150 of the second plate 1100 having the black matrix 1102 so that the light having a predetermined wavelength may pass through the color filter 1104. The color filter 1104 includes a red color filter portion 1104 a, a green color filter portion 1104 b, and a blue color filter portion 1104 c.
The color filter 1104 includes the recess 1132 a for the multi-domain so that the multi-domain is formed in the liquid crystal layer 1108. A portion of the color filter 1104 is removed to form the recess 1132 a for the multi-domain. The recess 1132 a for the multi-domain corresponds to the transmission window 1129 a. In this embodiment, the recess 1132 a for the multi-domain is on a central line of the transmission window 1129 a, and the recess 1132 a for the multi-domain has a rectangular shape that is extended in a direction substantially parallel with the central line. A depth of the recess 1132 a for the multi-domain is substantially equal to a thickness of the color filter 1104. Alternatively, the depth of the recess 1132 a may be less than the thickness of the color filter 1104.
The gate insulating layer 1126 is on the first plate 1120 having the gate electrode 1118 b so that the gate electrode 1118 b is electrically insulated from the source electrode 1118 a and the drain electrode 1118 c.
The passivation layer 1116 is over the first plate 1120 having the thin film transistor 1119. The passivation layer 1116 includes a contact hole through which the drain electrode 1118 c is partially exposed.
The first pixel electrode part 1112 is formed on the organic layer 1114 corresponding to the pixel region 1140, an inner surface of the contact hole, and a protrusion 1134 a for the multi-domain so that the first pixel electrode part 1112 is electrically connected to the drain electrode 1118 c.
The second pixel electrode part 1113 is on the organic layer 1114 corresponding to the reflection region 1128 so that the light is reflected from the second pixel electrode part 1113.
Referring to FIG. 14F, the green color filter portion 1104 b and the blue color filter portion (not shown) are formed on the second plate 1100 having the black matrix 1102 and the red color filter portion 1104 a.
Referring to FIG. 14G, the organic material 1105′ having the photoresist is coated over the second plate 1100 having the black matrix 1102 and the color filter 1104.
The color filter 1104 includes the recesses 1132 b for the multi-domain so that the multi-domain is formed in the liquid crystal layer 1108. A portion of the color filter 1104 is removed to form the recesses 1132 b for the multi-domain. The recesses 1132 b for the multi-domain correspond to the transmission window 1129 a. In this embodiment, the recesses 1132 b for the multi-domain are on a central line of the transmission window 1129 a, and in an example the recesses 1132 b for the multi-domain have a rectangular shape that is extended in a direction substantially parallel with the central line. Alternatively, the recesses 1132 b for the multi-domain may be extended in a direction substantially parallel with the source line 1118 a′.
The overcoating layer 1105 is on the second plate 1100 having the black matrix 1102 and the color filter 1104.
The first pixel electrode part 1112 includes a first transparent electrode portion 1212 a, a second transparent electrode portion 1212 b, a first connecting portion 1136 a, and a second connecting portion 1136 b.
The first and second transparent electrode portions 1212 a and 1212 b are on the organic layer 1114 corresponding to the transmission window 1129 a. The second transparent electrode portion 1212 b is adjacent to the first transparent electrode portion 1212 a.
The first connecting portion 1136 a is between the first and second transparent portions 1212 a and 1212 b to connect the first transparent electrode portion 1212 a to the second transparent electrode portion 1212 b. In this embodiment, each of the first and second transparent electrode portions 1212 a and 1212 b has a rectangular shape.
The second recess 1138 for the multi-domain is on the overcoating 1105 corresponding to the reflection region 1128 of the lower substrate 1180. In this embodiment, the second recess 1138 for the multi-domain has substantially equal size to each of the first recesses 1132 e.
The protrusions 1134 e for the multi-domain are on the organic layer 1114 corresponding to the first recesses 1132 e for the multi-domain.
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U.S. Classification 349/114, 349/187
International Classification G02F1/1333, H01L21/00, G02F1/13, G02F1/136, G02F1/1335, G02F1/133, G03F7/20