Liquid crystal device, method of manufacturing liquid crystal device, and electronic apparatus

Abstract

A liquid crystal device includes display pixels which correspond to at least a color of white or non-coloring and one color different from the color of white or non-coloring, each of the display pixels corresponding to one color having a transmissive region and a reflective region, and each of the display pixels corresponding to the color of white or non-coloring having only a transmissive region, a substrate, a counter substrate which is disposed so as to be opposite to the substrate, colored layers which are provided in the display pixels of the substrate or the counter substrate corresponding to one color, cell-thickness-adjusting layers which are provided in the substrate or the counter substrate and included in the reflective region of each of the display pixels corresponding to one color and the transmissive region of each of the display pixels corresponding to the color of white or non-coloring, and a liquid crystal layer which is interposed between the substrate and the counter substrate, the thickness of the layer crystal layer that corresponds to the transmissive region of each of the display pixels corresponding to one color is larger than the thickness of the liquid crystal layer that corresponds to the reflective region of each of the display pixels corresponding to one color according to the thickness of the cell-thickness-adjusting layer.

1 . A liquid crystal device comprising: 
 display pixels which correspond to at least a color of white or non-coloring and one color different from the color of white or non-coloring, each of the display pixels corresponding to one color having a transmissive region and a reflective region, and each of the display pixels corresponding to the color of white or non-coloring having only a transmissive region;    a substrate;    a counter substrate which is disposed so as to be opposite to the substrate;    colored layers which are provided in the display pixels of the substrate or the counter substrate corresponding to one color;    cell-thickness-adjusting layers which are provided in the substrate or the counter substrate and included in the reflective region of each of the display pixels corresponding to one color and the transmissive region of each of the display pixels corresponding to the color of white or non-coloring; and    a liquid crystal layer which is interposed between the substrate and the counter substrate, the thickness of the layer crystal layer that corresponds to the transmissive region of each of the display pixels corresponding to one color being larger than the thickness of the liquid crystal layer that corresponds to the reflective region of each of the display pixels corresponding to one color according to the thickness of the cell-thickness-adjusting layer.    
     
     
         2 . A liquid crystal device comprising: 
 display pixels which correspond to at least a color of white or non-coloring and one color different from the color of white or non-coloring, each of the display pixels corresponding to one color and each of the display pixels corresponding to the color of white or non-coloring having a transmissive region and a reflective region;    a substrate;    a counter substrate which is disposed so as to be opposite to the substrate;    colored layers which are provided in the display pixels of the substrate or the counter substrate corresponding to one color;    cell-thickness-adjusting layers which are provided in the substrate or the counter substrate, and included in at least the reflective region of each of the display pixels corresponding to one color and the transmissive region and the reflective region of each of the display pixels corresponding to the color of white or non-coloring, the thickness of the cell-thickness-adjusting layer in the reflective region of each of the display pixels corresponding to the color of white or non-coloring being larger than the thickness of the cell-thickness-adjusting layer in the transmissive region of each of the display pixels corresponding to the color of white or non-coloring; and    a liquid crystal layer which is interposed between the substrate and the counter substrate, the thickness of the liquid crystal layer that corresponds to the transmissive region of each of the display pixels corresponding to one color and the display pixels corresponding to the color of white or non-coloring being larger than the thickness of the liquid crystal layer that corresponds to the reflective region of each of the display pixels corresponding to one color and the display pixels corresponding to the color of white or non-coloring according to the thickness of the cell-thickness-adjusting layer.    
     
     
         3 . The liquid crystal device according to  claim 1 , 
 wherein, in the display pixels corresponding to one color and the display pixels corresponding to the color of white or non-coloring, the cell-thickness-adjusting layers, each of which is made of the same material, are provided.    
     
     
         4 . The liquid crystal device according to  claim 1 , 
 wherein the thickness of the cell-thickness-adjusting layer that is provided in the reflective region of each of the display pixels corresponding to one color is equal to the thickness of the cell-thickness-adjusting layer that is provided in the transmissive region of each of the display pixels corresponding to the color of white or non-coloring.    
     
     
         5 . The liquid crystal device according to  claim 1 , 
 wherein the thickness of the liquid crystal layer that corresponds to the transmissive region of each of the display pixels corresponding to one color is equal to the thickness of the liquid crystal layer that corresponds to the transmissive region of each of the display pixels corresponding to the color of white or non-coloring.    
     
     
         6 . The liquid crystal device according to  claim 1 , 
 wherein the thickness of the colored layer that corresponds to the transmissive region is larger than the thickness of the colored layer that corresponds to the reflective region.    
     
     
         7 . The liquid crystal device according to  claim 1 , 
 wherein, at a location that corresponds to the reflective region of any one of the substrate and the counter substrate, a reflecting layer that has a function of reflecting light is provided.    
     
     
         8 . An electronic apparatus comprising the liquid crystal device according to  claim 1  as a display unit.  
     
     
         9 . A method of manufacturing a liquid crystal device, the liquid crystal having display pixels that correspond to at least a color of white or non-coloring and one color different from the color of white or non-coloring, each of the display pixels corresponding to one color having a transmissive region and a reflective region, each of the display pixels corresponding to the color of white or non-coloring having only a transmissive region, and the thickness of a liquid crystal layer that corresponds to the transmissive region of each of the display pixels corresponding to one color being larger than the thickness of the liquid crystal layer that corresponds to the reflective region of each of the display pixels corresponding to one color, the method comprising: 
 forming colored layers in the display pixels corresponding to one color, on a substrate; and    forming cell-thickness-adjusting layers in the reflective region of each of the display pixels corresponding to one color and the transmissive region of each of the display pixels corresponding to the color of white or non-coloring, on the substrate, the cell-thickness-adjusting layers made of transparent materials.    
     
     
         10 . The method of manufacturing a liquid crystal device according to  claim 9 , 
 wherein each of the display pixels corresponding to the color of white or non-coloring does not have the reflective region.    
     
     
         11 . The method of manufacturing a liquid crystal device according to  claim 9 , 
 wherein each of the display pixels corresponding to the color of white or non-coloring has a reflective region,    the thickness of the liquid crystal layer that corresponds to the transmissive region of each of the display pixels corresponding to the color of white or non-coloring is larger than the thickness of the liquid crystal layer that corresponds to the reflective region of each of the display pixels corresponding to the color of white or non-coloring, and    during the forming of the cell-thickness-adjusting layers, the cell-thickness-adjusting layers are simultaneously formed in the reflective region of each of the display pixels corresponding to one color and the transmissive region and the reflective region of each of the display pixels corresponding to the color of white or non-coloring, on the substrate.    
     
     
         12 . The method of manufacturing a liquid crystal device according to  claim 9 , 
 wherein, during the forming of the colored layers, an opening is formed in the colored layer that is located in the reflective region.    
     
     
         13 . The method of manufacturing a liquid crystal device according to  claim 9 , 
 wherein, during the forming of the cell-thickness-adjusting layers, the cell-thickness-adjusting layer is formed with the same thickness as the colored layer.    
     
     
         14 . The method of manufacturing a liquid crystal device according to  claim 9 , 
 wherein the forming of the cell-thickness-adjusting layers includes adjusting the layer thickness,    the adjusting of the layer thickness includes:    coating a resist on the colored layers of the display pixels corresponding to the color of white or non-coloring and the display pixels of one color,    performing an exposure process on the coated resist once by using a first mask and then performing development and etching processes on the coated resist, the first mask having a complete exposure region for completely transmitting light and a complete light shielding region for completely shielding the light, and    performing the resist coating again, performing an exposure process on the coated resist once by using a second mask that has a complete exposure region and a complete light shielding region and a structure different from a structure of the first mask layer, and performing development and etching processes on the coated resist, and    during the adjusting of the layer thickness, the thickness of the cell-thickness-adjusting layer that is provided in the transmissive region of each of the display pixels corresponding to the color of white or non-coloring is equal to the thickness of the colored layer in the transmissive region of each of the display pixels that correspond to one color.    
     
     
         15 . The method of manufacturing a liquid crystal device according to  claim 9 , 
 wherein the forming of the cell-thickness-adjusting layer includes adjusting the layer thickness,    the adjusting of the layer thickness includes:    coating a resist on the colored layers of the display pixels corresponding to the color of white or non-coloring and the display pixels of one color,    performing an exposure process on the coated resist at least once by using a mask and then performing development and etching processes on the coated resist, the mask having a complete exposure region for completely transmitting light, a complete light shielding region for completely shielding the light, and a halftone exposure region that is made of a semitransparent film, and performing development and etching processes on the coated resist, and    during the adjusting of the cell-thickness, the thickness of the cell-thickness-adjusting layer that is provided in the transmissive region of each of the display pixels corresponding to the color of white or non-coloring is equal to the thickness of the colored layer in the transmissive region of each of the display pixels that correspond to one color.    
     
     
         16 . The method of manufacturing a liquid crystal device according to  claim 9 , further comprising; 
 forming a protective film on the colored layers of the display pixels corresponding to one color between the forming of the colored layers and the forming of the cell-thickness-adjusting layers,    wherein during the forming of the cell-thickness-adjusting layer, the cell-thickness-adjusting layer is formed on the protective film in the reflective display region of each of the display pixels corresponding to the color of white or non-coloring and the display pixels corresponding to one color, and    during the adjusting of the layer thickness, the thickness of the cell-thickness-adjusting layer that is provided in the transmissive region of each of the display pixels corresponding to the color of white or non-coloring is equal to the thickness of the colored layer in the transmissive region of each of the display pixels that correspond to one color.    
     
     
         17 . The method of manufacturing a liquid crystal device according to  claim 9 , further comprising, prior to the forming of the colored layers: 
 forming a reflecting layer in the reflective region, on the substrate.